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 (void) fprintf(stderr, gettext("use 'zfs " 1897 "inherit -S %s' to revert to received " 1898 "value\n"), propname); 1899 } 1900 return (1); 1901 } 1902 if (received && (prop == ZFS_PROP_VOLSIZE || 1903 prop == ZFS_PROP_VERSION)) { 1904 (void) fprintf(stderr, gettext("'%s' property cannot " 1905 "be reverted to a received value\n"), propname); 1906 return (1); 1907 } 1908 } else if (!zfs_prop_user(propname)) { 1909 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1910 propname); 1911 usage(B_FALSE); 1912 } 1913 1914 cb.cb_propname = propname; 1915 cb.cb_received = received; 1916 1917 if (flags & ZFS_ITER_RECURSE) { 1918 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1919 NULL, NULL, 0, inherit_recurse_cb, &cb); 1920 } else { 1921 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1922 NULL, NULL, 0, inherit_cb, &cb); 1923 } 1924 1925 return (ret); 1926 } 1927 1928 typedef struct upgrade_cbdata { 1929 uint64_t cb_numupgraded; 1930 uint64_t cb_numsamegraded; 1931 uint64_t cb_numfailed; 1932 uint64_t cb_version; 1933 boolean_t cb_newer; 1934 boolean_t cb_foundone; 1935 char cb_lastfs[ZFS_MAXNAMELEN]; 1936 } upgrade_cbdata_t; 1937 1938 static int 1939 same_pool(zfs_handle_t *zhp, const char *name) 1940 { 1941 int len1 = strcspn(name, "/@"); 1942 const char *zhname = zfs_get_name(zhp); 1943 int len2 = strcspn(zhname, "/@"); 1944 1945 if (len1 != len2) 1946 return (B_FALSE); 1947 return (strncmp(name, zhname, len1) == 0); 1948 } 1949 1950 static int 1951 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1952 { 1953 upgrade_cbdata_t *cb = data; 1954 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1955 1956 /* list if it's old/new */ 1957 if ((!cb->cb_newer && version < ZPL_VERSION) || 1958 (cb->cb_newer && version > ZPL_VERSION)) { 1959 char *str; 1960 if (cb->cb_newer) { 1961 str = gettext("The following filesystems are " 1962 "formatted using a newer software version and\n" 1963 "cannot be accessed on the current system.\n\n"); 1964 } else { 1965 str = gettext("The following filesystems are " 1966 "out of date, and can be upgraded. After being\n" 1967 "upgraded, these filesystems (and any 'zfs send' " 1968 "streams generated from\n" 1969 "subsequent snapshots) will no longer be " 1970 "accessible by older software versions.\n\n"); 1971 } 1972 1973 if (!cb->cb_foundone) { 1974 (void) puts(str); 1975 (void) printf(gettext("VER FILESYSTEM\n")); 1976 (void) printf(gettext("--- ------------\n")); 1977 cb->cb_foundone = B_TRUE; 1978 } 1979 1980 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1981 } 1982 1983 return (0); 1984 } 1985 1986 static int 1987 upgrade_set_callback(zfs_handle_t *zhp, void *data) 1988 { 1989 upgrade_cbdata_t *cb = data; 1990 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1991 int needed_spa_version; 1992 int spa_version; 1993 1994 if (zfs_spa_version(zhp, &spa_version) < 0) 1995 return (-1); 1996 1997 needed_spa_version = zfs_spa_version_map(cb->cb_version); 1998 1999 if (needed_spa_version < 0) 2000 return (-1); 2001 2002 if (spa_version < needed_spa_version) { 2003 /* can't upgrade */ 2004 (void) printf(gettext("%s: can not be " 2005 "upgraded; the pool version needs to first " 2006 "be upgraded\nto version %d\n\n"), 2007 zfs_get_name(zhp), needed_spa_version); 2008 cb->cb_numfailed++; 2009 return (0); 2010 } 2011 2012 /* upgrade */ 2013 if (version < cb->cb_version) { 2014 char verstr[16]; 2015 (void) snprintf(verstr, sizeof (verstr), 2016 "%llu", cb->cb_version); 2017 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2018 /* 2019 * If they did "zfs upgrade -a", then we could 2020 * be doing ioctls to different pools. We need 2021 * to log this history once to each pool, and bypass 2022 * the normal history logging that happens in main(). 2023 */ 2024 (void) zpool_log_history(g_zfs, history_str); 2025 log_history = B_FALSE; 2026 } 2027 if (zfs_prop_set(zhp, "version", verstr) == 0) 2028 cb->cb_numupgraded++; 2029 else 2030 cb->cb_numfailed++; 2031 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2032 } else if (version > cb->cb_version) { 2033 /* can't downgrade */ 2034 (void) printf(gettext("%s: can not be downgraded; " 2035 "it is already at version %u\n"), 2036 zfs_get_name(zhp), version); 2037 cb->cb_numfailed++; 2038 } else { 2039 cb->cb_numsamegraded++; 2040 } 2041 return (0); 2042 } 2043 2044 /* 2045 * zfs upgrade 2046 * zfs upgrade -v 2047 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2048 */ 2049 static int 2050 zfs_do_upgrade(int argc, char **argv) 2051 { 2052 boolean_t all = B_FALSE; 2053 boolean_t showversions = B_FALSE; 2054 int ret = 0; 2055 upgrade_cbdata_t cb = { 0 }; 2056 char c; 2057 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2058 2059 /* check options */ 2060 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2061 switch (c) { 2062 case 'r': 2063 flags |= ZFS_ITER_RECURSE; 2064 break; 2065 case 'v': 2066 showversions = B_TRUE; 2067 break; 2068 case 'V': 2069 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2070 optarg, &cb.cb_version) != 0) { 2071 (void) fprintf(stderr, 2072 gettext("invalid version %s\n"), optarg); 2073 usage(B_FALSE); 2074 } 2075 break; 2076 case 'a': 2077 all = B_TRUE; 2078 break; 2079 case '?': 2080 default: 2081 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2082 optopt); 2083 usage(B_FALSE); 2084 } 2085 } 2086 2087 argc -= optind; 2088 argv += optind; 2089 2090 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2091 usage(B_FALSE); 2092 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2093 cb.cb_version || argc)) 2094 usage(B_FALSE); 2095 if ((all || argc) && (showversions)) 2096 usage(B_FALSE); 2097 if (all && argc) 2098 usage(B_FALSE); 2099 2100 if (showversions) { 2101 /* Show info on available versions. */ 2102 (void) printf(gettext("The following filesystem versions are " 2103 "supported:\n\n")); 2104 (void) printf(gettext("VER DESCRIPTION\n")); 2105 (void) printf("--- -----------------------------------------" 2106 "---------------\n"); 2107 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2108 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2109 (void) printf(gettext(" 3 Case insensitive and filesystem " 2110 "user identifier (FUID)\n")); 2111 (void) printf(gettext(" 4 userquota, groupquota " 2112 "properties\n")); 2113 (void) printf(gettext(" 5 System attributes\n")); 2114 (void) printf(gettext("\nFor more information on a particular " 2115 "version, including supported releases,\n")); 2116 (void) printf("see the ZFS Administration Guide.\n\n"); 2117 ret = 0; 2118 } else if (argc || all) { 2119 /* Upgrade filesystems */ 2120 if (cb.cb_version == 0) 2121 cb.cb_version = ZPL_VERSION; 2122 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2123 NULL, NULL, 0, upgrade_set_callback, &cb); 2124 (void) printf(gettext("%llu filesystems upgraded\n"), 2125 cb.cb_numupgraded); 2126 if (cb.cb_numsamegraded) { 2127 (void) printf(gettext("%llu filesystems already at " 2128 "this version\n"), 2129 cb.cb_numsamegraded); 2130 } 2131 if (cb.cb_numfailed != 0) 2132 ret = 1; 2133 } else { 2134 /* List old-version filesytems */ 2135 boolean_t found; 2136 (void) printf(gettext("This system is currently running " 2137 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2138 2139 flags |= ZFS_ITER_RECURSE; 2140 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2141 NULL, NULL, 0, upgrade_list_callback, &cb); 2142 2143 found = cb.cb_foundone; 2144 cb.cb_foundone = B_FALSE; 2145 cb.cb_newer = B_TRUE; 2146 2147 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2148 NULL, NULL, 0, upgrade_list_callback, &cb); 2149 2150 if (!cb.cb_foundone && !found) { 2151 (void) printf(gettext("All filesystems are " 2152 "formatted with the current version.\n")); 2153 } 2154 } 2155 2156 return (ret); 2157 } 2158 2159 /* 2160 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2161 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2162 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2163 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2164 * 2165 * -H Scripted mode; elide headers and separate columns by tabs. 2166 * -i Translate SID to POSIX ID. 2167 * -n Print numeric ID instead of user/group name. 2168 * -o Control which fields to display. 2169 * -p Use exact (parsable) numeric output. 2170 * -s Specify sort columns, descending order. 2171 * -S Specify sort columns, ascending order. 2172 * -t Control which object types to display. 2173 * 2174 * Displays space consumed by, and quotas on, each user in the specified 2175 * filesystem or snapshot. 2176 */ 2177 2178 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2179 enum us_field_types { 2180 USFIELD_TYPE, 2181 USFIELD_NAME, 2182 USFIELD_USED, 2183 USFIELD_QUOTA 2184 }; 2185 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2186 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2187 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2188 2189 #define USTYPE_PSX_GRP (1 << 0) 2190 #define USTYPE_PSX_USR (1 << 1) 2191 #define USTYPE_SMB_GRP (1 << 2) 2192 #define USTYPE_SMB_USR (1 << 3) 2193 #define USTYPE_ALL \ 2194 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2195 2196 static int us_type_bits[] = { 2197 USTYPE_PSX_GRP, 2198 USTYPE_PSX_USR, 2199 USTYPE_SMB_GRP, 2200 USTYPE_SMB_USR, 2201 USTYPE_ALL 2202 }; 2203 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2204 "smbuser", "all" }; 2205 2206 typedef struct us_node { 2207 nvlist_t *usn_nvl; 2208 uu_avl_node_t usn_avlnode; 2209 uu_list_node_t usn_listnode; 2210 } us_node_t; 2211 2212 typedef struct us_cbdata { 2213 nvlist_t **cb_nvlp; 2214 uu_avl_pool_t *cb_avl_pool; 2215 uu_avl_t *cb_avl; 2216 boolean_t cb_numname; 2217 boolean_t cb_nicenum; 2218 boolean_t cb_sid2posix; 2219 zfs_userquota_prop_t cb_prop; 2220 zfs_sort_column_t *cb_sortcol; 2221 size_t cb_width[USFIELD_LAST]; 2222 } us_cbdata_t; 2223 2224 static boolean_t us_populated = B_FALSE; 2225 2226 typedef struct { 2227 zfs_sort_column_t *si_sortcol; 2228 boolean_t si_numname; 2229 } us_sort_info_t; 2230 2231 static int 2232 us_field_index(char *field) 2233 { 2234 int i; 2235 2236 for (i = 0; i < USFIELD_LAST; i++) { 2237 if (strcmp(field, us_field_names[i]) == 0) 2238 return (i); 2239 } 2240 2241 return (-1); 2242 } 2243 2244 static int 2245 us_compare(const void *larg, const void *rarg, void *unused) 2246 { 2247 const us_node_t *l = larg; 2248 const us_node_t *r = rarg; 2249 us_sort_info_t *si = (us_sort_info_t *)unused; 2250 zfs_sort_column_t *sortcol = si->si_sortcol; 2251 boolean_t numname = si->si_numname; 2252 nvlist_t *lnvl = l->usn_nvl; 2253 nvlist_t *rnvl = r->usn_nvl; 2254 int rc = 0; 2255 boolean_t lvb, rvb; 2256 2257 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2258 char *lvstr = ""; 2259 char *rvstr = ""; 2260 uint32_t lv32 = 0; 2261 uint32_t rv32 = 0; 2262 uint64_t lv64 = 0; 2263 uint64_t rv64 = 0; 2264 zfs_prop_t prop = sortcol->sc_prop; 2265 const char *propname = NULL; 2266 boolean_t reverse = sortcol->sc_reverse; 2267 2268 switch (prop) { 2269 case ZFS_PROP_TYPE: 2270 propname = "type"; 2271 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2272 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2273 if (rv32 != lv32) 2274 rc = (rv32 < lv32) ? 1 : -1; 2275 break; 2276 case ZFS_PROP_NAME: 2277 propname = "name"; 2278 if (numname) { 2279 (void) nvlist_lookup_uint64(lnvl, propname, 2280 &lv64); 2281 (void) nvlist_lookup_uint64(rnvl, propname, 2282 &rv64); 2283 if (rv64 != lv64) 2284 rc = (rv64 < lv64) ? 1 : -1; 2285 } else { 2286 (void) nvlist_lookup_string(lnvl, propname, 2287 &lvstr); 2288 (void) nvlist_lookup_string(rnvl, propname, 2289 &rvstr); 2290 rc = strcmp(lvstr, rvstr); 2291 } 2292 break; 2293 case ZFS_PROP_USED: 2294 case ZFS_PROP_QUOTA: 2295 if (!us_populated) 2296 break; 2297 if (prop == ZFS_PROP_USED) 2298 propname = "used"; 2299 else 2300 propname = "quota"; 2301 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2302 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2303 if (rv64 != lv64) 2304 rc = (rv64 < lv64) ? 1 : -1; 2305 break; 2306 } 2307 2308 if (rc != 0) { 2309 if (rc < 0) 2310 return (reverse ? 1 : -1); 2311 else 2312 return (reverse ? -1 : 1); 2313 } 2314 } 2315 2316 /* 2317 * If entries still seem to be the same, check if they are of the same 2318 * type (smbentity is added only if we are doing SID to POSIX ID 2319 * translation where we can have duplicate type/name combinations). 2320 */ 2321 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2322 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2323 lvb != rvb) 2324 return (lvb < rvb ? -1 : 1); 2325 2326 return (0); 2327 } 2328 2329 static inline const char * 2330 us_type2str(unsigned field_type) 2331 { 2332 switch (field_type) { 2333 case USTYPE_PSX_USR: 2334 return ("POSIX User"); 2335 case USTYPE_PSX_GRP: 2336 return ("POSIX Group"); 2337 case USTYPE_SMB_USR: 2338 return ("SMB User"); 2339 case USTYPE_SMB_GRP: 2340 return ("SMB Group"); 2341 default: 2342 return ("Undefined"); 2343 } 2344 } 2345 2346 static int 2347 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2348 { 2349 us_cbdata_t *cb = (us_cbdata_t *)arg; 2350 zfs_userquota_prop_t prop = cb->cb_prop; 2351 char *name = NULL; 2352 char *propname; 2353 char sizebuf[32]; 2354 us_node_t *node; 2355 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2356 uu_avl_t *avl = cb->cb_avl; 2357 uu_avl_index_t idx; 2358 nvlist_t *props; 2359 us_node_t *n; 2360 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2361 unsigned type; 2362 const char *typestr; 2363 size_t namelen; 2364 size_t typelen; 2365 size_t sizelen; 2366 int typeidx, nameidx, sizeidx; 2367 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2368 boolean_t smbentity = B_FALSE; 2369 2370 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2371 nomem(); 2372 node = safe_malloc(sizeof (us_node_t)); 2373 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2374 node->usn_nvl = props; 2375 2376 if (domain != NULL && domain[0] != '\0') { 2377 /* SMB */ 2378 char sid[ZFS_MAXNAMELEN + 32]; 2379 uid_t id; 2380 int err; 2381 int flag = IDMAP_REQ_FLG_USE_CACHE; 2382 2383 smbentity = B_TRUE; 2384 2385 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2386 2387 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2388 type = USTYPE_SMB_GRP; 2389 err = sid_to_id(sid, B_FALSE, &id); 2390 } else { 2391 type = USTYPE_SMB_USR; 2392 err = sid_to_id(sid, B_TRUE, &id); 2393 } 2394 2395 if (err == 0) { 2396 rid = id; 2397 if (!cb->cb_sid2posix) { 2398 if (type == USTYPE_SMB_USR) { 2399 (void) idmap_getwinnamebyuid(rid, flag, 2400 &name, NULL); 2401 } else { 2402 (void) idmap_getwinnamebygid(rid, flag, 2403 &name, NULL); 2404 } 2405 if (name == NULL) 2406 name = sid; 2407 } 2408 } 2409 } 2410 2411 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2412 /* POSIX or -i */ 2413 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2414 type = USTYPE_PSX_GRP; 2415 if (!cb->cb_numname) { 2416 struct group *g; 2417 2418 if ((g = getgrgid(rid)) != NULL) 2419 name = g->gr_name; 2420 } 2421 } else { 2422 type = USTYPE_PSX_USR; 2423 if (!cb->cb_numname) { 2424 struct passwd *p; 2425 2426 if ((p = getpwuid(rid)) != NULL) 2427 name = p->pw_name; 2428 } 2429 } 2430 } 2431 2432 /* 2433 * Make sure that the type/name combination is unique when doing 2434 * SID to POSIX ID translation (hence changing the type from SMB to 2435 * POSIX). 2436 */ 2437 if (cb->cb_sid2posix && 2438 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2439 nomem(); 2440 2441 /* Calculate/update width of TYPE field */ 2442 typestr = us_type2str(type); 2443 typelen = strlen(gettext(typestr)); 2444 typeidx = us_field_index("type"); 2445 if (typelen > cb->cb_width[typeidx]) 2446 cb->cb_width[typeidx] = typelen; 2447 if (nvlist_add_uint32(props, "type", type) != 0) 2448 nomem(); 2449 2450 /* Calculate/update width of NAME field */ 2451 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2452 if (nvlist_add_uint64(props, "name", rid) != 0) 2453 nomem(); 2454 namelen = snprintf(NULL, 0, "%u", rid); 2455 } else { 2456 if (nvlist_add_string(props, "name", name) != 0) 2457 nomem(); 2458 namelen = strlen(name); 2459 } 2460 nameidx = us_field_index("name"); 2461 if (namelen > cb->cb_width[nameidx]) 2462 cb->cb_width[nameidx] = namelen; 2463 2464 /* 2465 * Check if this type/name combination is in the list and update it; 2466 * otherwise add new node to the list. 2467 */ 2468 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2469 uu_avl_insert(avl, node, idx); 2470 } else { 2471 nvlist_free(props); 2472 free(node); 2473 node = n; 2474 props = node->usn_nvl; 2475 } 2476 2477 /* Calculate/update width of USED/QUOTA fields */ 2478 if (cb->cb_nicenum) 2479 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2480 else 2481 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2482 sizelen = strlen(sizebuf); 2483 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2484 propname = "used"; 2485 if (!nvlist_exists(props, "quota")) 2486 (void) nvlist_add_uint64(props, "quota", 0); 2487 } else { 2488 propname = "quota"; 2489 if (!nvlist_exists(props, "used")) 2490 (void) nvlist_add_uint64(props, "used", 0); 2491 } 2492 sizeidx = us_field_index(propname); 2493 if (sizelen > cb->cb_width[sizeidx]) 2494 cb->cb_width[sizeidx] = sizelen; 2495 2496 if (nvlist_add_uint64(props, propname, space) != 0) 2497 nomem(); 2498 2499 return (0); 2500 } 2501 2502 static void 2503 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2504 size_t *width, us_node_t *node) 2505 { 2506 nvlist_t *nvl = node->usn_nvl; 2507 char valstr[ZFS_MAXNAMELEN]; 2508 boolean_t first = B_TRUE; 2509 int cfield = 0; 2510 int field; 2511 uint32_t ustype; 2512 2513 /* Check type */ 2514 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2515 if (!(ustype & types)) 2516 return; 2517 2518 while ((field = fields[cfield]) != USFIELD_LAST) { 2519 nvpair_t *nvp = NULL; 2520 data_type_t type; 2521 uint32_t val32; 2522 uint64_t val64; 2523 char *strval = NULL; 2524 2525 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2526 if (strcmp(nvpair_name(nvp), 2527 us_field_names[field]) == 0) 2528 break; 2529 } 2530 2531 type = nvpair_type(nvp); 2532 switch (type) { 2533 case DATA_TYPE_UINT32: 2534 (void) nvpair_value_uint32(nvp, &val32); 2535 break; 2536 case DATA_TYPE_UINT64: 2537 (void) nvpair_value_uint64(nvp, &val64); 2538 break; 2539 case DATA_TYPE_STRING: 2540 (void) nvpair_value_string(nvp, &strval); 2541 break; 2542 default: 2543 (void) fprintf(stderr, "invalid data type\n"); 2544 } 2545 2546 switch (field) { 2547 case USFIELD_TYPE: 2548 strval = (char *)us_type2str(val32); 2549 break; 2550 case USFIELD_NAME: 2551 if (type == DATA_TYPE_UINT64) { 2552 (void) sprintf(valstr, "%llu", val64); 2553 strval = valstr; 2554 } 2555 break; 2556 case USFIELD_USED: 2557 case USFIELD_QUOTA: 2558 if (type == DATA_TYPE_UINT64) { 2559 if (parsable) { 2560 (void) sprintf(valstr, "%llu", val64); 2561 } else { 2562 zfs_nicenum(val64, valstr, 2563 sizeof (valstr)); 2564 } 2565 if (field == USFIELD_QUOTA && 2566 strcmp(valstr, "0") == 0) 2567 strval = "none"; 2568 else 2569 strval = valstr; 2570 } 2571 break; 2572 } 2573 2574 if (!first) { 2575 if (scripted) 2576 (void) printf("\t"); 2577 else 2578 (void) printf(" "); 2579 } 2580 if (scripted) 2581 (void) printf("%s", strval); 2582 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2583 (void) printf("%-*s", width[field], strval); 2584 else 2585 (void) printf("%*s", width[field], strval); 2586 2587 first = B_FALSE; 2588 cfield++; 2589 } 2590 2591 (void) printf("\n"); 2592 } 2593 2594 static void 2595 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2596 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2597 { 2598 us_node_t *node; 2599 const char *col; 2600 int cfield = 0; 2601 int field; 2602 2603 if (!scripted) { 2604 boolean_t first = B_TRUE; 2605 2606 while ((field = fields[cfield]) != USFIELD_LAST) { 2607 col = gettext(us_field_hdr[field]); 2608 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2609 (void) printf(first ? "%-*s" : " %-*s", 2610 width[field], col); 2611 } else { 2612 (void) printf(first ? "%*s" : " %*s", 2613 width[field], col); 2614 } 2615 first = B_FALSE; 2616 cfield++; 2617 } 2618 (void) printf("\n"); 2619 } 2620 2621 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2622 print_us_node(scripted, parsable, fields, types, width, node); 2623 if (rmnode) 2624 nvlist_free(node->usn_nvl); 2625 } 2626 } 2627 2628 static int 2629 zfs_do_userspace(int argc, char **argv) 2630 { 2631 zfs_handle_t *zhp; 2632 zfs_userquota_prop_t p; 2633 uu_avl_pool_t *avl_pool; 2634 uu_avl_t *avl_tree; 2635 uu_avl_walk_t *walk; 2636 char *delim; 2637 char deffields[] = "type,name,used,quota"; 2638 char *ofield = NULL; 2639 char *tfield = NULL; 2640 int cfield = 0; 2641 int fields[256]; 2642 int i; 2643 boolean_t scripted = B_FALSE; 2644 boolean_t prtnum = B_FALSE; 2645 boolean_t parsable = B_FALSE; 2646 boolean_t sid2posix = B_FALSE; 2647 int ret = 0; 2648 int c; 2649 zfs_sort_column_t *sortcol = NULL; 2650 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2651 us_cbdata_t cb; 2652 us_node_t *node; 2653 us_node_t *rmnode; 2654 uu_list_pool_t *listpool; 2655 uu_list_t *list; 2656 uu_avl_index_t idx = 0; 2657 uu_list_index_t idx2 = 0; 2658 2659 if (argc < 2) 2660 usage(B_FALSE); 2661 2662 if (strcmp(argv[0], "groupspace") == 0) 2663 /* Toggle default group types */ 2664 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2665 2666 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2667 switch (c) { 2668 case 'n': 2669 prtnum = B_TRUE; 2670 break; 2671 case 'H': 2672 scripted = B_TRUE; 2673 break; 2674 case 'p': 2675 parsable = B_TRUE; 2676 break; 2677 case 'o': 2678 ofield = optarg; 2679 break; 2680 case 's': 2681 case 'S': 2682 if (zfs_add_sort_column(&sortcol, optarg, 2683 c == 's' ? B_FALSE : B_TRUE) != 0) { 2684 (void) fprintf(stderr, 2685 gettext("invalid field '%s'\n"), optarg); 2686 usage(B_FALSE); 2687 } 2688 break; 2689 case 't': 2690 tfield = optarg; 2691 break; 2692 case 'i': 2693 sid2posix = B_TRUE; 2694 break; 2695 case ':': 2696 (void) fprintf(stderr, gettext("missing argument for " 2697 "'%c' option\n"), optopt); 2698 usage(B_FALSE); 2699 break; 2700 case '?': 2701 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2702 optopt); 2703 usage(B_FALSE); 2704 } 2705 } 2706 2707 argc -= optind; 2708 argv += optind; 2709 2710 if (argc < 1) { 2711 (void) fprintf(stderr, gettext("missing dataset name\n")); 2712 usage(B_FALSE); 2713 } 2714 if (argc > 1) { 2715 (void) fprintf(stderr, gettext("too many arguments\n")); 2716 usage(B_FALSE); 2717 } 2718 2719 /* Use default output fields if not specified using -o */ 2720 if (ofield == NULL) 2721 ofield = deffields; 2722 do { 2723 if ((delim = strchr(ofield, ',')) != NULL) 2724 *delim = '\0'; 2725 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2726 (void) fprintf(stderr, gettext("invalid type '%s' " 2727 "for -o option\n"), ofield); 2728 return (-1); 2729 } 2730 if (delim != NULL) 2731 ofield = delim + 1; 2732 } while (delim != NULL); 2733 fields[cfield] = USFIELD_LAST; 2734 2735 /* Override output types (-t option) */ 2736 if (tfield != NULL) { 2737 types = 0; 2738 2739 do { 2740 boolean_t found = B_FALSE; 2741 2742 if ((delim = strchr(tfield, ',')) != NULL) 2743 *delim = '\0'; 2744 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2745 i++) { 2746 if (strcmp(tfield, us_type_names[i]) == 0) { 2747 found = B_TRUE; 2748 types |= us_type_bits[i]; 2749 break; 2750 } 2751 } 2752 if (!found) { 2753 (void) fprintf(stderr, gettext("invalid type " 2754 "'%s' for -t option\n"), tfield); 2755 return (-1); 2756 } 2757 if (delim != NULL) 2758 tfield = delim + 1; 2759 } while (delim != NULL); 2760 } 2761 2762 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2763 return (1); 2764 2765 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2766 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2767 nomem(); 2768 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2769 nomem(); 2770 2771 /* Always add default sorting columns */ 2772 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2773 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2774 2775 cb.cb_sortcol = sortcol; 2776 cb.cb_numname = prtnum; 2777 cb.cb_nicenum = !parsable; 2778 cb.cb_avl_pool = avl_pool; 2779 cb.cb_avl = avl_tree; 2780 cb.cb_sid2posix = sid2posix; 2781 2782 for (i = 0; i < USFIELD_LAST; i++) 2783 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2784 2785 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2786 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2787 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2788 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2789 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2790 continue; 2791 cb.cb_prop = p; 2792 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2793 return (ret); 2794 } 2795 2796 /* Sort the list */ 2797 if ((node = uu_avl_first(avl_tree)) == NULL) 2798 return (0); 2799 2800 us_populated = B_TRUE; 2801 2802 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2803 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2804 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2805 uu_list_node_init(node, &node->usn_listnode, listpool); 2806 2807 while (node != NULL) { 2808 rmnode = node; 2809 node = uu_avl_next(avl_tree, node); 2810 uu_avl_remove(avl_tree, rmnode); 2811 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2812 uu_list_insert(list, rmnode, idx2); 2813 } 2814 2815 for (node = uu_list_first(list); node != NULL; 2816 node = uu_list_next(list, node)) { 2817 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2818 2819 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2820 uu_avl_insert(avl_tree, node, idx); 2821 } 2822 2823 uu_list_destroy(list); 2824 uu_list_pool_destroy(listpool); 2825 2826 /* Print and free node nvlist memory */ 2827 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2828 cb.cb_avl); 2829 2830 zfs_free_sort_columns(sortcol); 2831 2832 /* Clean up the AVL tree */ 2833 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2834 nomem(); 2835 2836 while ((node = uu_avl_walk_next(walk)) != NULL) { 2837 uu_avl_remove(cb.cb_avl, node); 2838 free(node); 2839 } 2840 2841 uu_avl_walk_end(walk); 2842 uu_avl_destroy(avl_tree); 2843 uu_avl_pool_destroy(avl_pool); 2844 2845 return (ret); 2846 } 2847 2848 /* 2849 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2850 * [-t type[,...]] [filesystem|volume|snapshot] ... 2851 * 2852 * -H Scripted mode; elide headers and separate columns by tabs. 2853 * -p Display values in parsable (literal) format. 2854 * -r Recurse over all children. 2855 * -d Limit recursion by depth. 2856 * -o Control which fields to display. 2857 * -s Specify sort columns, descending order. 2858 * -S Specify sort columns, ascending order. 2859 * -t Control which object types to display. 2860 * 2861 * When given no arguments, list all filesystems in the system. 2862 * Otherwise, list the specified datasets, optionally recursing down them if 2863 * '-r' is specified. 2864 */ 2865 typedef struct list_cbdata { 2866 boolean_t cb_first; 2867 boolean_t cb_literal; 2868 boolean_t cb_scripted; 2869 zprop_list_t *cb_proplist; 2870 } list_cbdata_t; 2871 2872 /* 2873 * Given a list of columns to display, output appropriate headers for each one. 2874 */ 2875 static void 2876 print_header(list_cbdata_t *cb) 2877 { 2878 zprop_list_t *pl = cb->cb_proplist; 2879 char headerbuf[ZFS_MAXPROPLEN]; 2880 const char *header; 2881 int i; 2882 boolean_t first = B_TRUE; 2883 boolean_t right_justify; 2884 2885 for (; pl != NULL; pl = pl->pl_next) { 2886 if (!first) { 2887 (void) printf(" "); 2888 } else { 2889 first = B_FALSE; 2890 } 2891 2892 right_justify = B_FALSE; 2893 if (pl->pl_prop != ZPROP_INVAL) { 2894 header = zfs_prop_column_name(pl->pl_prop); 2895 right_justify = zfs_prop_align_right(pl->pl_prop); 2896 } else { 2897 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2898 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2899 headerbuf[i] = '\0'; 2900 header = headerbuf; 2901 } 2902 2903 if (pl->pl_next == NULL && !right_justify) 2904 (void) printf("%s", header); 2905 else if (right_justify) 2906 (void) printf("%*s", pl->pl_width, header); 2907 else 2908 (void) printf("%-*s", pl->pl_width, header); 2909 } 2910 2911 (void) printf("\n"); 2912 } 2913 2914 /* 2915 * Given a dataset and a list of fields, print out all the properties according 2916 * to the described layout. 2917 */ 2918 static void 2919 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2920 { 2921 zprop_list_t *pl = cb->cb_proplist; 2922 boolean_t first = B_TRUE; 2923 char property[ZFS_MAXPROPLEN]; 2924 nvlist_t *userprops = zfs_get_user_props(zhp); 2925 nvlist_t *propval; 2926 char *propstr; 2927 boolean_t right_justify; 2928 2929 for (; pl != NULL; pl = pl->pl_next) { 2930 if (!first) { 2931 if (cb->cb_scripted) 2932 (void) printf("\t"); 2933 else 2934 (void) printf(" "); 2935 } else { 2936 first = B_FALSE; 2937 } 2938 2939 if (pl->pl_prop != ZPROP_INVAL) { 2940 if (zfs_prop_get(zhp, pl->pl_prop, property, 2941 sizeof (property), NULL, NULL, 0, 2942 cb->cb_literal) != 0) 2943 propstr = "-"; 2944 else 2945 propstr = property; 2946 right_justify = zfs_prop_align_right(pl->pl_prop); 2947 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2948 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2949 property, sizeof (property), cb->cb_literal) != 0) 2950 propstr = "-"; 2951 else 2952 propstr = property; 2953 right_justify = B_TRUE; 2954 } else if (zfs_prop_written(pl->pl_user_prop)) { 2955 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2956 property, sizeof (property), cb->cb_literal) != 0) 2957 propstr = "-"; 2958 else 2959 propstr = property; 2960 right_justify = B_TRUE; 2961 } else { 2962 if (nvlist_lookup_nvlist(userprops, 2963 pl->pl_user_prop, &propval) != 0) 2964 propstr = "-"; 2965 else 2966 verify(nvlist_lookup_string(propval, 2967 ZPROP_VALUE, &propstr) == 0); 2968 right_justify = B_FALSE; 2969 } 2970 2971 /* 2972 * If this is being called in scripted mode, or if this is the 2973 * last column and it is left-justified, don't include a width 2974 * format specifier. 2975 */ 2976 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 2977 (void) printf("%s", propstr); 2978 else if (right_justify) 2979 (void) printf("%*s", pl->pl_width, propstr); 2980 else 2981 (void) printf("%-*s", pl->pl_width, propstr); 2982 } 2983 2984 (void) printf("\n"); 2985 } 2986 2987 /* 2988 * Generic callback function to list a dataset or snapshot. 2989 */ 2990 static int 2991 list_callback(zfs_handle_t *zhp, void *data) 2992 { 2993 list_cbdata_t *cbp = data; 2994 2995 if (cbp->cb_first) { 2996 if (!cbp->cb_scripted) 2997 print_header(cbp); 2998 cbp->cb_first = B_FALSE; 2999 } 3000 3001 print_dataset(zhp, cbp); 3002 3003 return (0); 3004 } 3005 3006 static int 3007 zfs_do_list(int argc, char **argv) 3008 { 3009 int c; 3010 static char default_fields[] = 3011 "name,used,available,referenced,mountpoint"; 3012 int types = ZFS_TYPE_DATASET; 3013 boolean_t types_specified = B_FALSE; 3014 char *fields = NULL; 3015 list_cbdata_t cb = { 0 }; 3016 char *value; 3017 int limit = 0; 3018 int ret = 0; 3019 zfs_sort_column_t *sortcol = NULL; 3020 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3021 3022 /* check options */ 3023 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3024 switch (c) { 3025 case 'o': 3026 fields = optarg; 3027 break; 3028 case 'p': 3029 cb.cb_literal = B_TRUE; 3030 flags |= ZFS_ITER_LITERAL_PROPS; 3031 break; 3032 case 'd': 3033 limit = parse_depth(optarg, &flags); 3034 break; 3035 case 'r': 3036 flags |= ZFS_ITER_RECURSE; 3037 break; 3038 case 'H': 3039 cb.cb_scripted = B_TRUE; 3040 break; 3041 case 's': 3042 if (zfs_add_sort_column(&sortcol, optarg, 3043 B_FALSE) != 0) { 3044 (void) fprintf(stderr, 3045 gettext("invalid property '%s'\n"), optarg); 3046 usage(B_FALSE); 3047 } 3048 break; 3049 case 'S': 3050 if (zfs_add_sort_column(&sortcol, optarg, 3051 B_TRUE) != 0) { 3052 (void) fprintf(stderr, 3053 gettext("invalid property '%s'\n"), optarg); 3054 usage(B_FALSE); 3055 } 3056 break; 3057 case 't': 3058 types = 0; 3059 types_specified = B_TRUE; 3060 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3061 while (*optarg != '\0') { 3062 static char *type_subopts[] = { "filesystem", 3063 "volume", "snapshot", "snap", "bookmark", 3064 "all", NULL }; 3065 3066 switch (getsubopt(&optarg, type_subopts, 3067 &value)) { 3068 case 0: 3069 types |= ZFS_TYPE_FILESYSTEM; 3070 break; 3071 case 1: 3072 types |= ZFS_TYPE_VOLUME; 3073 break; 3074 case 2: 3075 case 3: 3076 types |= ZFS_TYPE_SNAPSHOT; 3077 break; 3078 case 4: 3079 types |= ZFS_TYPE_BOOKMARK; 3080 break; 3081 case 5: 3082 types = ZFS_TYPE_DATASET | 3083 ZFS_TYPE_BOOKMARK; 3084 break; 3085 default: 3086 (void) fprintf(stderr, 3087 gettext("invalid type '%s'\n"), 3088 value); 3089 usage(B_FALSE); 3090 } 3091 } 3092 break; 3093 case ':': 3094 (void) fprintf(stderr, gettext("missing argument for " 3095 "'%c' option\n"), optopt); 3096 usage(B_FALSE); 3097 break; 3098 case '?': 3099 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3100 optopt); 3101 usage(B_FALSE); 3102 } 3103 } 3104 3105 argc -= optind; 3106 argv += optind; 3107 3108 if (fields == NULL) 3109 fields = default_fields; 3110 3111 /* 3112 * If "-o space" and no types were specified, don't display snapshots. 3113 */ 3114 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3115 types &= ~ZFS_TYPE_SNAPSHOT; 3116 3117 /* 3118 * If the user specifies '-o all', the zprop_get_list() doesn't 3119 * normally include the name of the dataset. For 'zfs list', we always 3120 * want this property to be first. 3121 */ 3122 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3123 != 0) 3124 usage(B_FALSE); 3125 3126 cb.cb_first = B_TRUE; 3127 3128 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3129 limit, list_callback, &cb); 3130 3131 zprop_free_list(cb.cb_proplist); 3132 zfs_free_sort_columns(sortcol); 3133 3134 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3135 (void) printf(gettext("no datasets available\n")); 3136 3137 return (ret); 3138 } 3139 3140 /* 3141 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3142 * zfs rename [-f] -p <fs | vol> <fs | vol> 3143 * zfs rename -r <snap> <snap> 3144 * 3145 * Renames the given dataset to another of the same type. 3146 * 3147 * The '-p' flag creates all the non-existing ancestors of the target first. 3148 */ 3149 /* ARGSUSED */ 3150 static int 3151 zfs_do_rename(int argc, char **argv) 3152 { 3153 zfs_handle_t *zhp; 3154 int c; 3155 int ret = 0; 3156 boolean_t recurse = B_FALSE; 3157 boolean_t parents = B_FALSE; 3158 boolean_t force_unmount = B_FALSE; 3159 3160 /* check options */ 3161 while ((c = getopt(argc, argv, "prf")) != -1) { 3162 switch (c) { 3163 case 'p': 3164 parents = B_TRUE; 3165 break; 3166 case 'r': 3167 recurse = B_TRUE; 3168 break; 3169 case 'f': 3170 force_unmount = B_TRUE; 3171 break; 3172 case '?': 3173 default: 3174 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3175 optopt); 3176 usage(B_FALSE); 3177 } 3178 } 3179 3180 argc -= optind; 3181 argv += optind; 3182 3183 /* check number of arguments */ 3184 if (argc < 1) { 3185 (void) fprintf(stderr, gettext("missing source dataset " 3186 "argument\n")); 3187 usage(B_FALSE); 3188 } 3189 if (argc < 2) { 3190 (void) fprintf(stderr, gettext("missing target dataset " 3191 "argument\n")); 3192 usage(B_FALSE); 3193 } 3194 if (argc > 2) { 3195 (void) fprintf(stderr, gettext("too many arguments\n")); 3196 usage(B_FALSE); 3197 } 3198 3199 if (recurse && parents) { 3200 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3201 "exclusive\n")); 3202 usage(B_FALSE); 3203 } 3204 3205 if (recurse && strchr(argv[0], '@') == 0) { 3206 (void) fprintf(stderr, gettext("source dataset for recursive " 3207 "rename must be a snapshot\n")); 3208 usage(B_FALSE); 3209 } 3210 3211 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3212 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3213 return (1); 3214 3215 /* If we were asked and the name looks good, try to create ancestors. */ 3216 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3217 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3218 zfs_close(zhp); 3219 return (1); 3220 } 3221 3222 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3223 3224 zfs_close(zhp); 3225 return (ret); 3226 } 3227 3228 /* 3229 * zfs promote <fs> 3230 * 3231 * Promotes the given clone fs to be the parent 3232 */ 3233 /* ARGSUSED */ 3234 static int 3235 zfs_do_promote(int argc, char **argv) 3236 { 3237 zfs_handle_t *zhp; 3238 int ret = 0; 3239 3240 /* check options */ 3241 if (argc > 1 && argv[1][0] == '-') { 3242 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3243 argv[1][1]); 3244 usage(B_FALSE); 3245 } 3246 3247 /* check number of arguments */ 3248 if (argc < 2) { 3249 (void) fprintf(stderr, gettext("missing clone filesystem" 3250 " argument\n")); 3251 usage(B_FALSE); 3252 } 3253 if (argc > 2) { 3254 (void) fprintf(stderr, gettext("too many arguments\n")); 3255 usage(B_FALSE); 3256 } 3257 3258 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3259 if (zhp == NULL) 3260 return (1); 3261 3262 ret = (zfs_promote(zhp) != 0); 3263 3264 3265 zfs_close(zhp); 3266 return (ret); 3267 } 3268 3269 /* 3270 * zfs rollback [-rRf] <snapshot> 3271 * 3272 * -r Delete any intervening snapshots before doing rollback 3273 * -R Delete any snapshots and their clones 3274 * -f ignored for backwards compatability 3275 * 3276 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3277 * since then and making it the active dataset. If more recent snapshots exist, 3278 * the command will complain unless the '-r' flag is given. 3279 */ 3280 typedef struct rollback_cbdata { 3281 uint64_t cb_create; 3282 boolean_t cb_first; 3283 int cb_doclones; 3284 char *cb_target; 3285 int cb_error; 3286 boolean_t cb_recurse; 3287 } rollback_cbdata_t; 3288 3289 static int 3290 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3291 { 3292 rollback_cbdata_t *cbp = data; 3293 3294 if (cbp->cb_first && cbp->cb_recurse) { 3295 (void) fprintf(stderr, gettext("cannot rollback to " 3296 "'%s': clones of previous snapshots exist\n"), 3297 cbp->cb_target); 3298 (void) fprintf(stderr, gettext("use '-R' to " 3299 "force deletion of the following clones and " 3300 "dependents:\n")); 3301 cbp->cb_first = 0; 3302 cbp->cb_error = 1; 3303 } 3304 3305 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3306 3307 zfs_close(zhp); 3308 return (0); 3309 } 3310 3311 /* 3312 * Report any snapshots more recent than the one specified. Used when '-r' is 3313 * not specified. We reuse this same callback for the snapshot dependents - if 3314 * 'cb_dependent' is set, then this is a dependent and we should report it 3315 * without checking the transaction group. 3316 */ 3317 static int 3318 rollback_check(zfs_handle_t *zhp, void *data) 3319 { 3320 rollback_cbdata_t *cbp = data; 3321 3322 if (cbp->cb_doclones) { 3323 zfs_close(zhp); 3324 return (0); 3325 } 3326 3327 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3328 if (cbp->cb_first && !cbp->cb_recurse) { 3329 (void) fprintf(stderr, gettext("cannot " 3330 "rollback to '%s': more recent snapshots " 3331 "or bookmarks exist\n"), 3332 cbp->cb_target); 3333 (void) fprintf(stderr, gettext("use '-r' to " 3334 "force deletion of the following " 3335 "snapshots and bookmarks:\n")); 3336 cbp->cb_first = 0; 3337 cbp->cb_error = 1; 3338 } 3339 3340 if (cbp->cb_recurse) { 3341 if (zfs_iter_dependents(zhp, B_TRUE, 3342 rollback_check_dependent, cbp) != 0) { 3343 zfs_close(zhp); 3344 return (-1); 3345 } 3346 } else { 3347 (void) fprintf(stderr, "%s\n", 3348 zfs_get_name(zhp)); 3349 } 3350 } 3351 zfs_close(zhp); 3352 return (0); 3353 } 3354 3355 static int 3356 zfs_do_rollback(int argc, char **argv) 3357 { 3358 int ret = 0; 3359 int c; 3360 boolean_t force = B_FALSE; 3361 rollback_cbdata_t cb = { 0 }; 3362 zfs_handle_t *zhp, *snap; 3363 char parentname[ZFS_MAXNAMELEN]; 3364 char *delim; 3365 3366 /* check options */ 3367 while ((c = getopt(argc, argv, "rRf")) != -1) { 3368 switch (c) { 3369 case 'r': 3370 cb.cb_recurse = 1; 3371 break; 3372 case 'R': 3373 cb.cb_recurse = 1; 3374 cb.cb_doclones = 1; 3375 break; 3376 case 'f': 3377 force = B_TRUE; 3378 break; 3379 case '?': 3380 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3381 optopt); 3382 usage(B_FALSE); 3383 } 3384 } 3385 3386 argc -= optind; 3387 argv += optind; 3388 3389 /* check number of arguments */ 3390 if (argc < 1) { 3391 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3392 usage(B_FALSE); 3393 } 3394 if (argc > 1) { 3395 (void) fprintf(stderr, gettext("too many arguments\n")); 3396 usage(B_FALSE); 3397 } 3398 3399 /* open the snapshot */ 3400 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3401 return (1); 3402 3403 /* open the parent dataset */ 3404 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3405 verify((delim = strrchr(parentname, '@')) != NULL); 3406 *delim = '\0'; 3407 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3408 zfs_close(snap); 3409 return (1); 3410 } 3411 3412 /* 3413 * Check for more recent snapshots and/or clones based on the presence 3414 * of '-r' and '-R'. 3415 */ 3416 cb.cb_target = argv[0]; 3417 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3418 cb.cb_first = B_TRUE; 3419 cb.cb_error = 0; 3420 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3421 goto out; 3422 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3423 goto out; 3424 3425 if ((ret = cb.cb_error) != 0) 3426 goto out; 3427 3428 /* 3429 * Rollback parent to the given snapshot. 3430 */ 3431 ret = zfs_rollback(zhp, snap, force); 3432 3433 out: 3434 zfs_close(snap); 3435 zfs_close(zhp); 3436 3437 if (ret == 0) 3438 return (0); 3439 else 3440 return (1); 3441 } 3442 3443 /* 3444 * zfs set property=value { fs | snap | vol } ... 3445 * 3446 * Sets the given property for all datasets specified on the command line. 3447 */ 3448 typedef struct set_cbdata { 3449 char *cb_propname; 3450 char *cb_value; 3451 } set_cbdata_t; 3452 3453 static int 3454 set_callback(zfs_handle_t *zhp, void *data) 3455 { 3456 set_cbdata_t *cbp = data; 3457 3458 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3459 switch (libzfs_errno(g_zfs)) { 3460 case EZFS_MOUNTFAILED: 3461 (void) fprintf(stderr, gettext("property may be set " 3462 "but unable to remount filesystem\n")); 3463 break; 3464 case EZFS_SHARENFSFAILED: 3465 (void) fprintf(stderr, gettext("property may be set " 3466 "but unable to reshare filesystem\n")); 3467 break; 3468 } 3469 return (1); 3470 } 3471 return (0); 3472 } 3473 3474 static int 3475 zfs_do_set(int argc, char **argv) 3476 { 3477 set_cbdata_t cb; 3478 int ret = 0; 3479 3480 /* check for options */ 3481 if (argc > 1 && argv[1][0] == '-') { 3482 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3483 argv[1][1]); 3484 usage(B_FALSE); 3485 } 3486 3487 /* check number of arguments */ 3488 if (argc < 2) { 3489 (void) fprintf(stderr, gettext("missing property=value " 3490 "argument\n")); 3491 usage(B_FALSE); 3492 } 3493 if (argc < 3) { 3494 (void) fprintf(stderr, gettext("missing dataset name\n")); 3495 usage(B_FALSE); 3496 } 3497 3498 /* validate property=value argument */ 3499 cb.cb_propname = argv[1]; 3500 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3501 (cb.cb_value[1] == '\0')) { 3502 (void) fprintf(stderr, gettext("missing value in " 3503 "property=value argument\n")); 3504 usage(B_FALSE); 3505 } 3506 3507 *cb.cb_value = '\0'; 3508 cb.cb_value++; 3509 3510 if (*cb.cb_propname == '\0') { 3511 (void) fprintf(stderr, 3512 gettext("missing property in property=value argument\n")); 3513 usage(B_FALSE); 3514 } 3515 3516 ret = zfs_for_each(argc - 2, argv + 2, NULL, 3517 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3518 3519 return (ret); 3520 } 3521 3522 typedef struct snap_cbdata { 3523 nvlist_t *sd_nvl; 3524 boolean_t sd_recursive; 3525 const char *sd_snapname; 3526 } snap_cbdata_t; 3527 3528 static int 3529 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3530 { 3531 snap_cbdata_t *sd = arg; 3532 char *name; 3533 int rv = 0; 3534 int error; 3535 3536 if (sd->sd_recursive && 3537 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3538 zfs_close(zhp); 3539 return (0); 3540 } 3541 3542 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3543 if (error == -1) 3544 nomem(); 3545 fnvlist_add_boolean(sd->sd_nvl, name); 3546 free(name); 3547 3548 if (sd->sd_recursive) 3549 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3550 zfs_close(zhp); 3551 return (rv); 3552 } 3553 3554 /* 3555 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3556 * 3557 * Creates a snapshot with the given name. While functionally equivalent to 3558 * 'zfs create', it is a separate command to differentiate intent. 3559 */ 3560 static int 3561 zfs_do_snapshot(int argc, char **argv) 3562 { 3563 int ret = 0; 3564 char c; 3565 nvlist_t *props; 3566 snap_cbdata_t sd = { 0 }; 3567 boolean_t multiple_snaps = B_FALSE; 3568 3569 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3570 nomem(); 3571 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3572 nomem(); 3573 3574 /* check options */ 3575 while ((c = getopt(argc, argv, "ro:")) != -1) { 3576 switch (c) { 3577 case 'o': 3578 if (parseprop(props)) 3579 return (1); 3580 break; 3581 case 'r': 3582 sd.sd_recursive = B_TRUE; 3583 multiple_snaps = B_TRUE; 3584 break; 3585 case '?': 3586 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3587 optopt); 3588 goto usage; 3589 } 3590 } 3591 3592 argc -= optind; 3593 argv += optind; 3594 3595 /* check number of arguments */ 3596 if (argc < 1) { 3597 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3598 goto usage; 3599 } 3600 3601 if (argc > 1) 3602 multiple_snaps = B_TRUE; 3603 for (; argc > 0; argc--, argv++) { 3604 char *atp; 3605 zfs_handle_t *zhp; 3606 3607 atp = strchr(argv[0], '@'); 3608 if (atp == NULL) 3609 goto usage; 3610 *atp = '\0'; 3611 sd.sd_snapname = atp + 1; 3612 zhp = zfs_open(g_zfs, argv[0], 3613 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3614 if (zhp == NULL) 3615 goto usage; 3616 if (zfs_snapshot_cb(zhp, &sd) != 0) 3617 goto usage; 3618 } 3619 3620 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3621 nvlist_free(sd.sd_nvl); 3622 nvlist_free(props); 3623 if (ret != 0 && multiple_snaps) 3624 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3625 return (ret != 0); 3626 3627 usage: 3628 nvlist_free(sd.sd_nvl); 3629 nvlist_free(props); 3630 usage(B_FALSE); 3631 return (-1); 3632 } 3633 3634 /* 3635 * Send a backup stream to stdout. 3636 */ 3637 static int 3638 zfs_do_send(int argc, char **argv) 3639 { 3640 char *fromname = NULL; 3641 char *toname = NULL; 3642 char *cp; 3643 zfs_handle_t *zhp; 3644 sendflags_t flags = { 0 }; 3645 int c, err; 3646 nvlist_t *dbgnv = NULL; 3647 boolean_t extraverbose = B_FALSE; 3648 3649 /* check options */ 3650 while ((c = getopt(argc, argv, ":i:I:RDpvnPLe")) != -1) { 3651 switch (c) { 3652 case 'i': 3653 if (fromname) 3654 usage(B_FALSE); 3655 fromname = optarg; 3656 break; 3657 case 'I': 3658 if (fromname) 3659 usage(B_FALSE); 3660 fromname = optarg; 3661 flags.doall = B_TRUE; 3662 break; 3663 case 'R': 3664 flags.replicate = B_TRUE; 3665 break; 3666 case 'p': 3667 flags.props = B_TRUE; 3668 break; 3669 case 'P': 3670 flags.parsable = B_TRUE; 3671 flags.verbose = B_TRUE; 3672 break; 3673 case 'v': 3674 if (flags.verbose) 3675 extraverbose = B_TRUE; 3676 flags.verbose = B_TRUE; 3677 flags.progress = B_TRUE; 3678 break; 3679 case 'D': 3680 flags.dedup = B_TRUE; 3681 break; 3682 case 'n': 3683 flags.dryrun = B_TRUE; 3684 break; 3685 case 'L': 3686 flags.largeblock = B_TRUE; 3687 break; 3688 case 'e': 3689 flags.embed_data = B_TRUE; 3690 break; 3691 case ':': 3692 (void) fprintf(stderr, gettext("missing argument for " 3693 "'%c' option\n"), optopt); 3694 usage(B_FALSE); 3695 break; 3696 case '?': 3697 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3698 optopt); 3699 usage(B_FALSE); 3700 } 3701 } 3702 3703 argc -= optind; 3704 argv += optind; 3705 3706 /* check number of arguments */ 3707 if (argc < 1) { 3708 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3709 usage(B_FALSE); 3710 } 3711 if (argc > 1) { 3712 (void) fprintf(stderr, gettext("too many arguments\n")); 3713 usage(B_FALSE); 3714 } 3715 3716 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3717 (void) fprintf(stderr, 3718 gettext("Error: Stream can not be written to a terminal.\n" 3719 "You must redirect standard output.\n")); 3720 return (1); 3721 } 3722 3723 /* 3724 * Special case sending a filesystem, or from a bookmark. 3725 */ 3726 if (strchr(argv[0], '@') == NULL || 3727 (fromname && strchr(fromname, '#') != NULL)) { 3728 char frombuf[ZFS_MAXNAMELEN]; 3729 enum lzc_send_flags lzc_flags = 0; 3730 3731 if (flags.replicate || flags.doall || flags.props || 3732 flags.dedup || flags.dryrun || flags.verbose || 3733 flags.progress) { 3734 (void) fprintf(stderr, 3735 gettext("Error: " 3736 "Unsupported flag with filesystem or bookmark.\n")); 3737 return (1); 3738 } 3739 3740 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3741 if (zhp == NULL) 3742 return (1); 3743 3744 if (flags.largeblock) 3745 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3746 if (flags.embed_data) 3747 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3748 3749 if (fromname != NULL && 3750 (fromname[0] == '#' || fromname[0] == '@')) { 3751 /* 3752 * Incremental source name begins with # or @. 3753 * Default to same fs as target. 3754 */ 3755 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3756 cp = strchr(frombuf, '@'); 3757 if (cp != NULL) 3758 *cp = '\0'; 3759 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3760 fromname = frombuf; 3761 } 3762 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3763 zfs_close(zhp); 3764 return (err != 0); 3765 } 3766 3767 cp = strchr(argv[0], '@'); 3768 *cp = '\0'; 3769 toname = cp + 1; 3770 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3771 if (zhp == NULL) 3772 return (1); 3773 3774 /* 3775 * If they specified the full path to the snapshot, chop off 3776 * everything except the short name of the snapshot, but special 3777 * case if they specify the origin. 3778 */ 3779 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3780 char origin[ZFS_MAXNAMELEN]; 3781 zprop_source_t src; 3782 3783 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3784 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3785 3786 if (strcmp(origin, fromname) == 0) { 3787 fromname = NULL; 3788 flags.fromorigin = B_TRUE; 3789 } else { 3790 *cp = '\0'; 3791 if (cp != fromname && strcmp(argv[0], fromname)) { 3792 (void) fprintf(stderr, 3793 gettext("incremental source must be " 3794 "in same filesystem\n")); 3795 usage(B_FALSE); 3796 } 3797 fromname = cp + 1; 3798 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3799 (void) fprintf(stderr, 3800 gettext("invalid incremental source\n")); 3801 usage(B_FALSE); 3802 } 3803 } 3804 } 3805 3806 if (flags.replicate && fromname == NULL) 3807 flags.doall = B_TRUE; 3808 3809 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3810 extraverbose ? &dbgnv : NULL); 3811 3812 if (extraverbose && dbgnv != NULL) { 3813 /* 3814 * dump_nvlist prints to stdout, but that's been 3815 * redirected to a file. Make it print to stderr 3816 * instead. 3817 */ 3818 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3819 dump_nvlist(dbgnv, 0); 3820 nvlist_free(dbgnv); 3821 } 3822 zfs_close(zhp); 3823 3824 return (err != 0); 3825 } 3826 3827 /* 3828 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3829 * 3830 * Restore a backup stream from stdin. 3831 */ 3832 static int 3833 zfs_do_receive(int argc, char **argv) 3834 { 3835 int c, err; 3836 recvflags_t flags = { 0 }; 3837 3838 /* check options */ 3839 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3840 switch (c) { 3841 case 'd': 3842 flags.isprefix = B_TRUE; 3843 break; 3844 case 'e': 3845 flags.isprefix = B_TRUE; 3846 flags.istail = B_TRUE; 3847 break; 3848 case 'n': 3849 flags.dryrun = B_TRUE; 3850 break; 3851 case 'u': 3852 flags.nomount = B_TRUE; 3853 break; 3854 case 'v': 3855 flags.verbose = B_TRUE; 3856 break; 3857 case 'F': 3858 flags.force = B_TRUE; 3859 break; 3860 case ':': 3861 (void) fprintf(stderr, gettext("missing argument for " 3862 "'%c' option\n"), optopt); 3863 usage(B_FALSE); 3864 break; 3865 case '?': 3866 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3867 optopt); 3868 usage(B_FALSE); 3869 } 3870 } 3871 3872 argc -= optind; 3873 argv += optind; 3874 3875 /* check number of arguments */ 3876 if (argc < 1) { 3877 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3878 usage(B_FALSE); 3879 } 3880 if (argc > 1) { 3881 (void) fprintf(stderr, gettext("too many arguments\n")); 3882 usage(B_FALSE); 3883 } 3884 3885 if (isatty(STDIN_FILENO)) { 3886 (void) fprintf(stderr, 3887 gettext("Error: Backup stream can not be read " 3888 "from a terminal.\n" 3889 "You must redirect standard input.\n")); 3890 return (1); 3891 } 3892 3893 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3894 3895 return (err != 0); 3896 } 3897 3898 /* 3899 * allow/unallow stuff 3900 */ 3901 /* copied from zfs/sys/dsl_deleg.h */ 3902 #define ZFS_DELEG_PERM_CREATE "create" 3903 #define ZFS_DELEG_PERM_DESTROY "destroy" 3904 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3905 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 3906 #define ZFS_DELEG_PERM_CLONE "clone" 3907 #define ZFS_DELEG_PERM_PROMOTE "promote" 3908 #define ZFS_DELEG_PERM_RENAME "rename" 3909 #define ZFS_DELEG_PERM_MOUNT "mount" 3910 #define ZFS_DELEG_PERM_SHARE "share" 3911 #define ZFS_DELEG_PERM_SEND "send" 3912 #define ZFS_DELEG_PERM_RECEIVE "receive" 3913 #define ZFS_DELEG_PERM_ALLOW "allow" 3914 #define ZFS_DELEG_PERM_USERPROP "userprop" 3915 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3916 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 3917 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3918 #define ZFS_DELEG_PERM_USERUSED "userused" 3919 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 3920 #define ZFS_DELEG_PERM_HOLD "hold" 3921 #define ZFS_DELEG_PERM_RELEASE "release" 3922 #define ZFS_DELEG_PERM_DIFF "diff" 3923 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3924 3925 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3926 3927 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3928 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3929 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3930 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3931 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3932 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3933 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3934 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3935 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3936 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3937 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3938 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3939 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3940 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3941 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3942 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3943 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 3944 3945 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3946 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3947 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3948 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3949 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3950 { NULL, ZFS_DELEG_NOTE_NONE } 3951 }; 3952 3953 /* permission structure */ 3954 typedef struct deleg_perm { 3955 zfs_deleg_who_type_t dp_who_type; 3956 const char *dp_name; 3957 boolean_t dp_local; 3958 boolean_t dp_descend; 3959 } deleg_perm_t; 3960 3961 /* */ 3962 typedef struct deleg_perm_node { 3963 deleg_perm_t dpn_perm; 3964 3965 uu_avl_node_t dpn_avl_node; 3966 } deleg_perm_node_t; 3967 3968 typedef struct fs_perm fs_perm_t; 3969 3970 /* permissions set */ 3971 typedef struct who_perm { 3972 zfs_deleg_who_type_t who_type; 3973 const char *who_name; /* id */ 3974 char who_ug_name[256]; /* user/group name */ 3975 fs_perm_t *who_fsperm; /* uplink */ 3976 3977 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3978 } who_perm_t; 3979 3980 /* */ 3981 typedef struct who_perm_node { 3982 who_perm_t who_perm; 3983 uu_avl_node_t who_avl_node; 3984 } who_perm_node_t; 3985 3986 typedef struct fs_perm_set fs_perm_set_t; 3987 /* fs permissions */ 3988 struct fs_perm { 3989 const char *fsp_name; 3990 3991 uu_avl_t *fsp_sc_avl; /* sets,create */ 3992 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 3993 3994 fs_perm_set_t *fsp_set; /* uplink */ 3995 }; 3996 3997 /* */ 3998 typedef struct fs_perm_node { 3999 fs_perm_t fspn_fsperm; 4000 uu_avl_t *fspn_avl; 4001 4002 uu_list_node_t fspn_list_node; 4003 } fs_perm_node_t; 4004 4005 /* top level structure */ 4006 struct fs_perm_set { 4007 uu_list_pool_t *fsps_list_pool; 4008 uu_list_t *fsps_list; /* list of fs_perms */ 4009 4010 uu_avl_pool_t *fsps_named_set_avl_pool; 4011 uu_avl_pool_t *fsps_who_perm_avl_pool; 4012 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4013 }; 4014 4015 static inline const char * 4016 deleg_perm_type(zfs_deleg_note_t note) 4017 { 4018 /* subcommands */ 4019 switch (note) { 4020 /* SUBCOMMANDS */ 4021 /* OTHER */ 4022 case ZFS_DELEG_NOTE_GROUPQUOTA: 4023 case ZFS_DELEG_NOTE_GROUPUSED: 4024 case ZFS_DELEG_NOTE_USERPROP: 4025 case ZFS_DELEG_NOTE_USERQUOTA: 4026 case ZFS_DELEG_NOTE_USERUSED: 4027 /* other */ 4028 return (gettext("other")); 4029 default: 4030 return (gettext("subcommand")); 4031 } 4032 } 4033 4034 static int inline 4035 who_type2weight(zfs_deleg_who_type_t who_type) 4036 { 4037 int res; 4038 switch (who_type) { 4039 case ZFS_DELEG_NAMED_SET_SETS: 4040 case ZFS_DELEG_NAMED_SET: 4041 res = 0; 4042 break; 4043 case ZFS_DELEG_CREATE_SETS: 4044 case ZFS_DELEG_CREATE: 4045 res = 1; 4046 break; 4047 case ZFS_DELEG_USER_SETS: 4048 case ZFS_DELEG_USER: 4049 res = 2; 4050 break; 4051 case ZFS_DELEG_GROUP_SETS: 4052 case ZFS_DELEG_GROUP: 4053 res = 3; 4054 break; 4055 case ZFS_DELEG_EVERYONE_SETS: 4056 case ZFS_DELEG_EVERYONE: 4057 res = 4; 4058 break; 4059 default: 4060 res = -1; 4061 } 4062 4063 return (res); 4064 } 4065 4066 /* ARGSUSED */ 4067 static int 4068 who_perm_compare(const void *larg, const void *rarg, void *unused) 4069 { 4070 const who_perm_node_t *l = larg; 4071 const who_perm_node_t *r = rarg; 4072 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4073 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4074 int lweight = who_type2weight(ltype); 4075 int rweight = who_type2weight(rtype); 4076 int res = lweight - rweight; 4077 if (res == 0) 4078 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4079 ZFS_MAX_DELEG_NAME-1); 4080 4081 if (res == 0) 4082 return (0); 4083 if (res > 0) 4084 return (1); 4085 else 4086 return (-1); 4087 } 4088 4089 /* ARGSUSED */ 4090 static int 4091 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4092 { 4093 const deleg_perm_node_t *l = larg; 4094 const deleg_perm_node_t *r = rarg; 4095 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4096 ZFS_MAX_DELEG_NAME-1); 4097 4098 if (res == 0) 4099 return (0); 4100 4101 if (res > 0) 4102 return (1); 4103 else 4104 return (-1); 4105 } 4106 4107 static inline void 4108 fs_perm_set_init(fs_perm_set_t *fspset) 4109 { 4110 bzero(fspset, sizeof (fs_perm_set_t)); 4111 4112 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4113 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4114 NULL, UU_DEFAULT)) == NULL) 4115 nomem(); 4116 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4117 UU_DEFAULT)) == NULL) 4118 nomem(); 4119 4120 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4121 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4122 who_perm_node_t, who_avl_node), who_perm_compare, 4123 UU_DEFAULT)) == NULL) 4124 nomem(); 4125 4126 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4127 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4128 who_perm_node_t, who_avl_node), who_perm_compare, 4129 UU_DEFAULT)) == NULL) 4130 nomem(); 4131 4132 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4133 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4134 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4135 == NULL) 4136 nomem(); 4137 } 4138 4139 static inline void fs_perm_fini(fs_perm_t *); 4140 static inline void who_perm_fini(who_perm_t *); 4141 4142 static inline void 4143 fs_perm_set_fini(fs_perm_set_t *fspset) 4144 { 4145 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4146 4147 while (node != NULL) { 4148 fs_perm_node_t *next_node = 4149 uu_list_next(fspset->fsps_list, node); 4150 fs_perm_t *fsperm = &node->fspn_fsperm; 4151 fs_perm_fini(fsperm); 4152 uu_list_remove(fspset->fsps_list, node); 4153 free(node); 4154 node = next_node; 4155 } 4156 4157 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4158 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4159 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4160 } 4161 4162 static inline void 4163 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4164 const char *name) 4165 { 4166 deleg_perm->dp_who_type = type; 4167 deleg_perm->dp_name = name; 4168 } 4169 4170 static inline void 4171 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4172 zfs_deleg_who_type_t type, const char *name) 4173 { 4174 uu_avl_pool_t *pool; 4175 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4176 4177 bzero(who_perm, sizeof (who_perm_t)); 4178 4179 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4180 UU_DEFAULT)) == NULL) 4181 nomem(); 4182 4183 who_perm->who_type = type; 4184 who_perm->who_name = name; 4185 who_perm->who_fsperm = fsperm; 4186 } 4187 4188 static inline void 4189 who_perm_fini(who_perm_t *who_perm) 4190 { 4191 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4192 4193 while (node != NULL) { 4194 deleg_perm_node_t *next_node = 4195 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4196 4197 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4198 free(node); 4199 node = next_node; 4200 } 4201 4202 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4203 } 4204 4205 static inline void 4206 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4207 { 4208 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4209 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4210 4211 bzero(fsperm, sizeof (fs_perm_t)); 4212 4213 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4214 == NULL) 4215 nomem(); 4216 4217 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4218 == NULL) 4219 nomem(); 4220 4221 fsperm->fsp_set = fspset; 4222 fsperm->fsp_name = fsname; 4223 } 4224 4225 static inline void 4226 fs_perm_fini(fs_perm_t *fsperm) 4227 { 4228 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4229 while (node != NULL) { 4230 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4231 node); 4232 who_perm_t *who_perm = &node->who_perm; 4233 who_perm_fini(who_perm); 4234 uu_avl_remove(fsperm->fsp_sc_avl, node); 4235 free(node); 4236 node = next_node; 4237 } 4238 4239 node = uu_avl_first(fsperm->fsp_uge_avl); 4240 while (node != NULL) { 4241 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4242 node); 4243 who_perm_t *who_perm = &node->who_perm; 4244 who_perm_fini(who_perm); 4245 uu_avl_remove(fsperm->fsp_uge_avl, node); 4246 free(node); 4247 node = next_node; 4248 } 4249 4250 uu_avl_destroy(fsperm->fsp_sc_avl); 4251 uu_avl_destroy(fsperm->fsp_uge_avl); 4252 } 4253 4254 static void inline 4255 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4256 zfs_deleg_who_type_t who_type, const char *name, char locality) 4257 { 4258 uu_avl_index_t idx = 0; 4259 4260 deleg_perm_node_t *found_node = NULL; 4261 deleg_perm_t *deleg_perm = &node->dpn_perm; 4262 4263 deleg_perm_init(deleg_perm, who_type, name); 4264 4265 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4266 == NULL) 4267 uu_avl_insert(avl, node, idx); 4268 else { 4269 node = found_node; 4270 deleg_perm = &node->dpn_perm; 4271 } 4272 4273 4274 switch (locality) { 4275 case ZFS_DELEG_LOCAL: 4276 deleg_perm->dp_local = B_TRUE; 4277 break; 4278 case ZFS_DELEG_DESCENDENT: 4279 deleg_perm->dp_descend = B_TRUE; 4280 break; 4281 case ZFS_DELEG_NA: 4282 break; 4283 default: 4284 assert(B_FALSE); /* invalid locality */ 4285 } 4286 } 4287 4288 static inline int 4289 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4290 { 4291 nvpair_t *nvp = NULL; 4292 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4293 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4294 zfs_deleg_who_type_t who_type = who_perm->who_type; 4295 4296 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4297 const char *name = nvpair_name(nvp); 4298 data_type_t type = nvpair_type(nvp); 4299 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4300 deleg_perm_node_t *node = 4301 safe_malloc(sizeof (deleg_perm_node_t)); 4302 4303 assert(type == DATA_TYPE_BOOLEAN); 4304 4305 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4306 set_deleg_perm_node(avl, node, who_type, name, locality); 4307 } 4308 4309 return (0); 4310 } 4311 4312 static inline int 4313 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4314 { 4315 nvpair_t *nvp = NULL; 4316 fs_perm_set_t *fspset = fsperm->fsp_set; 4317 4318 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4319 nvlist_t *nvl2 = NULL; 4320 const char *name = nvpair_name(nvp); 4321 uu_avl_t *avl = NULL; 4322 uu_avl_pool_t *avl_pool; 4323 zfs_deleg_who_type_t perm_type = name[0]; 4324 char perm_locality = name[1]; 4325 const char *perm_name = name + 3; 4326 boolean_t is_set = B_TRUE; 4327 who_perm_t *who_perm = NULL; 4328 4329 assert('$' == name[2]); 4330 4331 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4332 return (-1); 4333 4334 switch (perm_type) { 4335 case ZFS_DELEG_CREATE: 4336 case ZFS_DELEG_CREATE_SETS: 4337 case ZFS_DELEG_NAMED_SET: 4338 case ZFS_DELEG_NAMED_SET_SETS: 4339 avl_pool = fspset->fsps_named_set_avl_pool; 4340 avl = fsperm->fsp_sc_avl; 4341 break; 4342 case ZFS_DELEG_USER: 4343 case ZFS_DELEG_USER_SETS: 4344 case ZFS_DELEG_GROUP: 4345 case ZFS_DELEG_GROUP_SETS: 4346 case ZFS_DELEG_EVERYONE: 4347 case ZFS_DELEG_EVERYONE_SETS: 4348 avl_pool = fspset->fsps_who_perm_avl_pool; 4349 avl = fsperm->fsp_uge_avl; 4350 break; 4351 } 4352 4353 if (is_set) { 4354 who_perm_node_t *found_node = NULL; 4355 who_perm_node_t *node = safe_malloc( 4356 sizeof (who_perm_node_t)); 4357 who_perm = &node->who_perm; 4358 uu_avl_index_t idx = 0; 4359 4360 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4361 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4362 4363 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4364 == NULL) { 4365 if (avl == fsperm->fsp_uge_avl) { 4366 uid_t rid = 0; 4367 struct passwd *p = NULL; 4368 struct group *g = NULL; 4369 const char *nice_name = NULL; 4370 4371 switch (perm_type) { 4372 case ZFS_DELEG_USER_SETS: 4373 case ZFS_DELEG_USER: 4374 rid = atoi(perm_name); 4375 p = getpwuid(rid); 4376 if (p) 4377 nice_name = p->pw_name; 4378 break; 4379 case ZFS_DELEG_GROUP_SETS: 4380 case ZFS_DELEG_GROUP: 4381 rid = atoi(perm_name); 4382 g = getgrgid(rid); 4383 if (g) 4384 nice_name = g->gr_name; 4385 break; 4386 } 4387 4388 if (nice_name != NULL) 4389 (void) strlcpy( 4390 node->who_perm.who_ug_name, 4391 nice_name, 256); 4392 } 4393 4394 uu_avl_insert(avl, node, idx); 4395 } else { 4396 node = found_node; 4397 who_perm = &node->who_perm; 4398 } 4399 } 4400 4401 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4402 } 4403 4404 return (0); 4405 } 4406 4407 static inline int 4408 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4409 { 4410 nvpair_t *nvp = NULL; 4411 uu_avl_index_t idx = 0; 4412 4413 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4414 nvlist_t *nvl2 = NULL; 4415 const char *fsname = nvpair_name(nvp); 4416 data_type_t type = nvpair_type(nvp); 4417 fs_perm_t *fsperm = NULL; 4418 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4419 if (node == NULL) 4420 nomem(); 4421 4422 fsperm = &node->fspn_fsperm; 4423 4424 assert(DATA_TYPE_NVLIST == type); 4425 4426 uu_list_node_init(node, &node->fspn_list_node, 4427 fspset->fsps_list_pool); 4428 4429 idx = uu_list_numnodes(fspset->fsps_list); 4430 fs_perm_init(fsperm, fspset, fsname); 4431 4432 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4433 return (-1); 4434 4435 (void) parse_fs_perm(fsperm, nvl2); 4436 4437 uu_list_insert(fspset->fsps_list, node, idx); 4438 } 4439 4440 return (0); 4441 } 4442 4443 static inline const char * 4444 deleg_perm_comment(zfs_deleg_note_t note) 4445 { 4446 const char *str = ""; 4447 4448 /* subcommands */ 4449 switch (note) { 4450 /* SUBCOMMANDS */ 4451 case ZFS_DELEG_NOTE_ALLOW: 4452 str = gettext("Must also have the permission that is being" 4453 "\n\t\t\t\tallowed"); 4454 break; 4455 case ZFS_DELEG_NOTE_CLONE: 4456 str = gettext("Must also have the 'create' ability and 'mount'" 4457 "\n\t\t\t\tability in the origin file system"); 4458 break; 4459 case ZFS_DELEG_NOTE_CREATE: 4460 str = gettext("Must also have the 'mount' ability"); 4461 break; 4462 case ZFS_DELEG_NOTE_DESTROY: 4463 str = gettext("Must also have the 'mount' ability"); 4464 break; 4465 case ZFS_DELEG_NOTE_DIFF: 4466 str = gettext("Allows lookup of paths within a dataset;" 4467 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4468 "\n\t\t\t\tin order to use zfs diff"); 4469 break; 4470 case ZFS_DELEG_NOTE_HOLD: 4471 str = gettext("Allows adding a user hold to a snapshot"); 4472 break; 4473 case ZFS_DELEG_NOTE_MOUNT: 4474 str = gettext("Allows mount/umount of ZFS datasets"); 4475 break; 4476 case ZFS_DELEG_NOTE_PROMOTE: 4477 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4478 " 'promote' ability in the origin file system"); 4479 break; 4480 case ZFS_DELEG_NOTE_RECEIVE: 4481 str = gettext("Must also have the 'mount' and 'create'" 4482 " ability"); 4483 break; 4484 case ZFS_DELEG_NOTE_RELEASE: 4485 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4486 "might destroy the snapshot"); 4487 break; 4488 case ZFS_DELEG_NOTE_RENAME: 4489 str = gettext("Must also have the 'mount' and 'create'" 4490 "\n\t\t\t\tability in the new parent"); 4491 break; 4492 case ZFS_DELEG_NOTE_ROLLBACK: 4493 str = gettext(""); 4494 break; 4495 case ZFS_DELEG_NOTE_SEND: 4496 str = gettext(""); 4497 break; 4498 case ZFS_DELEG_NOTE_SHARE: 4499 str = gettext("Allows sharing file systems over NFS or SMB" 4500 "\n\t\t\t\tprotocols"); 4501 break; 4502 case ZFS_DELEG_NOTE_SNAPSHOT: 4503 str = gettext(""); 4504 break; 4505 /* 4506 * case ZFS_DELEG_NOTE_VSCAN: 4507 * str = gettext(""); 4508 * break; 4509 */ 4510 /* OTHER */ 4511 case ZFS_DELEG_NOTE_GROUPQUOTA: 4512 str = gettext("Allows accessing any groupquota@... property"); 4513 break; 4514 case ZFS_DELEG_NOTE_GROUPUSED: 4515 str = gettext("Allows reading any groupused@... property"); 4516 break; 4517 case ZFS_DELEG_NOTE_USERPROP: 4518 str = gettext("Allows changing any user property"); 4519 break; 4520 case ZFS_DELEG_NOTE_USERQUOTA: 4521 str = gettext("Allows accessing any userquota@... property"); 4522 break; 4523 case ZFS_DELEG_NOTE_USERUSED: 4524 str = gettext("Allows reading any userused@... property"); 4525 break; 4526 /* other */ 4527 default: 4528 str = ""; 4529 } 4530 4531 return (str); 4532 } 4533 4534 struct allow_opts { 4535 boolean_t local; 4536 boolean_t descend; 4537 boolean_t user; 4538 boolean_t group; 4539 boolean_t everyone; 4540 boolean_t create; 4541 boolean_t set; 4542 boolean_t recursive; /* unallow only */ 4543 boolean_t prt_usage; 4544 4545 boolean_t prt_perms; 4546 char *who; 4547 char *perms; 4548 const char *dataset; 4549 }; 4550 4551 static inline int 4552 prop_cmp(const void *a, const void *b) 4553 { 4554 const char *str1 = *(const char **)a; 4555 const char *str2 = *(const char **)b; 4556 return (strcmp(str1, str2)); 4557 } 4558 4559 static void 4560 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4561 { 4562 const char *opt_desc[] = { 4563 "-h", gettext("show this help message and exit"), 4564 "-l", gettext("set permission locally"), 4565 "-d", gettext("set permission for descents"), 4566 "-u", gettext("set permission for user"), 4567 "-g", gettext("set permission for group"), 4568 "-e", gettext("set permission for everyone"), 4569 "-c", gettext("set create time permission"), 4570 "-s", gettext("define permission set"), 4571 /* unallow only */ 4572 "-r", gettext("remove permissions recursively"), 4573 }; 4574 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4575 size_t allow_size = unallow_size - 2; 4576 const char *props[ZFS_NUM_PROPS]; 4577 int i; 4578 size_t count = 0; 4579 FILE *fp = requested ? stdout : stderr; 4580 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4581 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4582 4583 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4584 HELP_ALLOW)); 4585 (void) fprintf(fp, gettext("Options:\n")); 4586 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4587 const char *opt = opt_desc[i++]; 4588 const char *optdsc = opt_desc[i]; 4589 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4590 } 4591 4592 (void) fprintf(fp, gettext("\nThe following permissions are " 4593 "supported:\n\n")); 4594 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4595 gettext("NOTES")); 4596 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4597 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4598 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4599 const char *perm_type = deleg_perm_type(perm_note); 4600 const char *perm_comment = deleg_perm_comment(perm_note); 4601 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4602 } 4603 4604 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4605 zprop_desc_t *pd = &pdtbl[i]; 4606 if (pd->pd_visible != B_TRUE) 4607 continue; 4608 4609 if (pd->pd_attr == PROP_READONLY) 4610 continue; 4611 4612 props[count++] = pd->pd_name; 4613 } 4614 props[count] = NULL; 4615 4616 qsort(props, count, sizeof (char *), prop_cmp); 4617 4618 for (i = 0; i < count; i++) 4619 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4620 4621 if (msg != NULL) 4622 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4623 4624 exit(requested ? 0 : 2); 4625 } 4626 4627 static inline const char * 4628 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4629 char **permsp) 4630 { 4631 if (un && argc == expected_argc - 1) 4632 *permsp = NULL; 4633 else if (argc == expected_argc) 4634 *permsp = argv[argc - 2]; 4635 else 4636 allow_usage(un, B_FALSE, 4637 gettext("wrong number of parameters\n")); 4638 4639 return (argv[argc - 1]); 4640 } 4641 4642 static void 4643 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4644 { 4645 int uge_sum = opts->user + opts->group + opts->everyone; 4646 int csuge_sum = opts->create + opts->set + uge_sum; 4647 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4648 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4649 4650 if (uge_sum > 1) 4651 allow_usage(un, B_FALSE, 4652 gettext("-u, -g, and -e are mutually exclusive\n")); 4653 4654 if (opts->prt_usage) 4655 if (argc == 0 && all_sum == 0) 4656 allow_usage(un, B_TRUE, NULL); 4657 else 4658 usage(B_FALSE); 4659 4660 if (opts->set) { 4661 if (csuge_sum > 1) 4662 allow_usage(un, B_FALSE, 4663 gettext("invalid options combined with -s\n")); 4664 4665 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4666 if (argv[0][0] != '@') 4667 allow_usage(un, B_FALSE, 4668 gettext("invalid set name: missing '@' prefix\n")); 4669 opts->who = argv[0]; 4670 } else if (opts->create) { 4671 if (ldcsuge_sum > 1) 4672 allow_usage(un, B_FALSE, 4673 gettext("invalid options combined with -c\n")); 4674 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4675 } else if (opts->everyone) { 4676 if (csuge_sum > 1) 4677 allow_usage(un, B_FALSE, 4678 gettext("invalid options combined with -e\n")); 4679 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4680 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4681 == 0) { 4682 opts->everyone = B_TRUE; 4683 argc--; 4684 argv++; 4685 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4686 } else if (argc == 1 && !un) { 4687 opts->prt_perms = B_TRUE; 4688 opts->dataset = argv[argc-1]; 4689 } else { 4690 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4691 opts->who = argv[0]; 4692 } 4693 4694 if (!opts->local && !opts->descend) { 4695 opts->local = B_TRUE; 4696 opts->descend = B_TRUE; 4697 } 4698 } 4699 4700 static void 4701 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4702 const char *who, char *perms, nvlist_t *top_nvl) 4703 { 4704 int i; 4705 char ld[2] = { '\0', '\0' }; 4706 char who_buf[ZFS_MAXNAMELEN+32]; 4707 char base_type; 4708 char set_type; 4709 nvlist_t *base_nvl = NULL; 4710 nvlist_t *set_nvl = NULL; 4711 nvlist_t *nvl; 4712 4713 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4714 nomem(); 4715 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4716 nomem(); 4717 4718 switch (type) { 4719 case ZFS_DELEG_NAMED_SET_SETS: 4720 case ZFS_DELEG_NAMED_SET: 4721 set_type = ZFS_DELEG_NAMED_SET_SETS; 4722 base_type = ZFS_DELEG_NAMED_SET; 4723 ld[0] = ZFS_DELEG_NA; 4724 break; 4725 case ZFS_DELEG_CREATE_SETS: 4726 case ZFS_DELEG_CREATE: 4727 set_type = ZFS_DELEG_CREATE_SETS; 4728 base_type = ZFS_DELEG_CREATE; 4729 ld[0] = ZFS_DELEG_NA; 4730 break; 4731 case ZFS_DELEG_USER_SETS: 4732 case ZFS_DELEG_USER: 4733 set_type = ZFS_DELEG_USER_SETS; 4734 base_type = ZFS_DELEG_USER; 4735 if (local) 4736 ld[0] = ZFS_DELEG_LOCAL; 4737 if (descend) 4738 ld[1] = ZFS_DELEG_DESCENDENT; 4739 break; 4740 case ZFS_DELEG_GROUP_SETS: 4741 case ZFS_DELEG_GROUP: 4742 set_type = ZFS_DELEG_GROUP_SETS; 4743 base_type = ZFS_DELEG_GROUP; 4744 if (local) 4745 ld[0] = ZFS_DELEG_LOCAL; 4746 if (descend) 4747 ld[1] = ZFS_DELEG_DESCENDENT; 4748 break; 4749 case ZFS_DELEG_EVERYONE_SETS: 4750 case ZFS_DELEG_EVERYONE: 4751 set_type = ZFS_DELEG_EVERYONE_SETS; 4752 base_type = ZFS_DELEG_EVERYONE; 4753 if (local) 4754 ld[0] = ZFS_DELEG_LOCAL; 4755 if (descend) 4756 ld[1] = ZFS_DELEG_DESCENDENT; 4757 } 4758 4759 if (perms != NULL) { 4760 char *curr = perms; 4761 char *end = curr + strlen(perms); 4762 4763 while (curr < end) { 4764 char *delim = strchr(curr, ','); 4765 if (delim == NULL) 4766 delim = end; 4767 else 4768 *delim = '\0'; 4769 4770 if (curr[0] == '@') 4771 nvl = set_nvl; 4772 else 4773 nvl = base_nvl; 4774 4775 (void) nvlist_add_boolean(nvl, curr); 4776 if (delim != end) 4777 *delim = ','; 4778 curr = delim + 1; 4779 } 4780 4781 for (i = 0; i < 2; i++) { 4782 char locality = ld[i]; 4783 if (locality == 0) 4784 continue; 4785 4786 if (!nvlist_empty(base_nvl)) { 4787 if (who != NULL) 4788 (void) snprintf(who_buf, 4789 sizeof (who_buf), "%c%c$%s", 4790 base_type, locality, who); 4791 else 4792 (void) snprintf(who_buf, 4793 sizeof (who_buf), "%c%c$", 4794 base_type, locality); 4795 4796 (void) nvlist_add_nvlist(top_nvl, who_buf, 4797 base_nvl); 4798 } 4799 4800 4801 if (!nvlist_empty(set_nvl)) { 4802 if (who != NULL) 4803 (void) snprintf(who_buf, 4804 sizeof (who_buf), "%c%c$%s", 4805 set_type, locality, who); 4806 else 4807 (void) snprintf(who_buf, 4808 sizeof (who_buf), "%c%c$", 4809 set_type, locality); 4810 4811 (void) nvlist_add_nvlist(top_nvl, who_buf, 4812 set_nvl); 4813 } 4814 } 4815 } else { 4816 for (i = 0; i < 2; i++) { 4817 char locality = ld[i]; 4818 if (locality == 0) 4819 continue; 4820 4821 if (who != NULL) 4822 (void) snprintf(who_buf, sizeof (who_buf), 4823 "%c%c$%s", base_type, locality, who); 4824 else 4825 (void) snprintf(who_buf, sizeof (who_buf), 4826 "%c%c$", base_type, locality); 4827 (void) nvlist_add_boolean(top_nvl, who_buf); 4828 4829 if (who != NULL) 4830 (void) snprintf(who_buf, sizeof (who_buf), 4831 "%c%c$%s", set_type, locality, who); 4832 else 4833 (void) snprintf(who_buf, sizeof (who_buf), 4834 "%c%c$", set_type, locality); 4835 (void) nvlist_add_boolean(top_nvl, who_buf); 4836 } 4837 } 4838 } 4839 4840 static int 4841 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4842 { 4843 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4844 nomem(); 4845 4846 if (opts->set) { 4847 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4848 opts->descend, opts->who, opts->perms, *nvlp); 4849 } else if (opts->create) { 4850 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4851 opts->descend, NULL, opts->perms, *nvlp); 4852 } else if (opts->everyone) { 4853 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4854 opts->descend, NULL, opts->perms, *nvlp); 4855 } else { 4856 char *curr = opts->who; 4857 char *end = curr + strlen(curr); 4858 4859 while (curr < end) { 4860 const char *who; 4861 zfs_deleg_who_type_t who_type; 4862 char *endch; 4863 char *delim = strchr(curr, ','); 4864 char errbuf[256]; 4865 char id[64]; 4866 struct passwd *p = NULL; 4867 struct group *g = NULL; 4868 4869 uid_t rid; 4870 if (delim == NULL) 4871 delim = end; 4872 else 4873 *delim = '\0'; 4874 4875 rid = (uid_t)strtol(curr, &endch, 0); 4876 if (opts->user) { 4877 who_type = ZFS_DELEG_USER; 4878 if (*endch != '\0') 4879 p = getpwnam(curr); 4880 else 4881 p = getpwuid(rid); 4882 4883 if (p != NULL) 4884 rid = p->pw_uid; 4885 else { 4886 (void) snprintf(errbuf, 256, gettext( 4887 "invalid user %s"), curr); 4888 allow_usage(un, B_TRUE, errbuf); 4889 } 4890 } else if (opts->group) { 4891 who_type = ZFS_DELEG_GROUP; 4892 if (*endch != '\0') 4893 g = getgrnam(curr); 4894 else 4895 g = getgrgid(rid); 4896 4897 if (g != NULL) 4898 rid = g->gr_gid; 4899 else { 4900 (void) snprintf(errbuf, 256, gettext( 4901 "invalid group %s"), curr); 4902 allow_usage(un, B_TRUE, errbuf); 4903 } 4904 } else { 4905 if (*endch != '\0') { 4906 p = getpwnam(curr); 4907 } else { 4908 p = getpwuid(rid); 4909 } 4910 4911 if (p == NULL) 4912 if (*endch != '\0') { 4913 g = getgrnam(curr); 4914 } else { 4915 g = getgrgid(rid); 4916 } 4917 4918 if (p != NULL) { 4919 who_type = ZFS_DELEG_USER; 4920 rid = p->pw_uid; 4921 } else if (g != NULL) { 4922 who_type = ZFS_DELEG_GROUP; 4923 rid = g->gr_gid; 4924 } else { 4925 (void) snprintf(errbuf, 256, gettext( 4926 "invalid user/group %s"), curr); 4927 allow_usage(un, B_TRUE, errbuf); 4928 } 4929 } 4930 4931 (void) sprintf(id, "%u", rid); 4932 who = id; 4933 4934 store_allow_perm(who_type, opts->local, 4935 opts->descend, who, opts->perms, *nvlp); 4936 curr = delim + 1; 4937 } 4938 } 4939 4940 return (0); 4941 } 4942 4943 static void 4944 print_set_creat_perms(uu_avl_t *who_avl) 4945 { 4946 const char *sc_title[] = { 4947 gettext("Permission sets:\n"), 4948 gettext("Create time permissions:\n"), 4949 NULL 4950 }; 4951 const char **title_ptr = sc_title; 4952 who_perm_node_t *who_node = NULL; 4953 int prev_weight = -1; 4954 4955 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4956 who_node = uu_avl_next(who_avl, who_node)) { 4957 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4958 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4959 const char *who_name = who_node->who_perm.who_name; 4960 int weight = who_type2weight(who_type); 4961 boolean_t first = B_TRUE; 4962 deleg_perm_node_t *deleg_node; 4963 4964 if (prev_weight != weight) { 4965 (void) printf(*title_ptr++); 4966 prev_weight = weight; 4967 } 4968 4969 if (who_name == NULL || strnlen(who_name, 1) == 0) 4970 (void) printf("\t"); 4971 else 4972 (void) printf("\t%s ", who_name); 4973 4974 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4975 deleg_node = uu_avl_next(avl, deleg_node)) { 4976 if (first) { 4977 (void) printf("%s", 4978 deleg_node->dpn_perm.dp_name); 4979 first = B_FALSE; 4980 } else 4981 (void) printf(",%s", 4982 deleg_node->dpn_perm.dp_name); 4983 } 4984 4985 (void) printf("\n"); 4986 } 4987 } 4988 4989 static void inline 4990 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 4991 const char *title) 4992 { 4993 who_perm_node_t *who_node = NULL; 4994 boolean_t prt_title = B_TRUE; 4995 uu_avl_walk_t *walk; 4996 4997 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 4998 nomem(); 4999 5000 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5001 const char *who_name = who_node->who_perm.who_name; 5002 const char *nice_who_name = who_node->who_perm.who_ug_name; 5003 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5004 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5005 char delim = ' '; 5006 deleg_perm_node_t *deleg_node; 5007 boolean_t prt_who = B_TRUE; 5008 5009 for (deleg_node = uu_avl_first(avl); 5010 deleg_node != NULL; 5011 deleg_node = uu_avl_next(avl, deleg_node)) { 5012 if (local != deleg_node->dpn_perm.dp_local || 5013 descend != deleg_node->dpn_perm.dp_descend) 5014 continue; 5015 5016 if (prt_who) { 5017 const char *who = NULL; 5018 if (prt_title) { 5019 prt_title = B_FALSE; 5020 (void) printf(title); 5021 } 5022 5023 switch (who_type) { 5024 case ZFS_DELEG_USER_SETS: 5025 case ZFS_DELEG_USER: 5026 who = gettext("user"); 5027 if (nice_who_name) 5028 who_name = nice_who_name; 5029 break; 5030 case ZFS_DELEG_GROUP_SETS: 5031 case ZFS_DELEG_GROUP: 5032 who = gettext("group"); 5033 if (nice_who_name) 5034 who_name = nice_who_name; 5035 break; 5036 case ZFS_DELEG_EVERYONE_SETS: 5037 case ZFS_DELEG_EVERYONE: 5038 who = gettext("everyone"); 5039 who_name = NULL; 5040 } 5041 5042 prt_who = B_FALSE; 5043 if (who_name == NULL) 5044 (void) printf("\t%s", who); 5045 else 5046 (void) printf("\t%s %s", who, who_name); 5047 } 5048 5049 (void) printf("%c%s", delim, 5050 deleg_node->dpn_perm.dp_name); 5051 delim = ','; 5052 } 5053 5054 if (!prt_who) 5055 (void) printf("\n"); 5056 } 5057 5058 uu_avl_walk_end(walk); 5059 } 5060 5061 static void 5062 print_fs_perms(fs_perm_set_t *fspset) 5063 { 5064 fs_perm_node_t *node = NULL; 5065 char buf[ZFS_MAXNAMELEN+32]; 5066 const char *dsname = buf; 5067 5068 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5069 node = uu_list_next(fspset->fsps_list, node)) { 5070 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5071 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5072 int left = 0; 5073 5074 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5075 gettext("---- Permissions on %s "), 5076 node->fspn_fsperm.fsp_name); 5077 (void) printf(dsname); 5078 left = 70 - strlen(buf); 5079 while (left-- > 0) 5080 (void) printf("-"); 5081 (void) printf("\n"); 5082 5083 print_set_creat_perms(sc_avl); 5084 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5085 gettext("Local permissions:\n")); 5086 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5087 gettext("Descendent permissions:\n")); 5088 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5089 gettext("Local+Descendent permissions:\n")); 5090 } 5091 } 5092 5093 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5094 5095 struct deleg_perms { 5096 boolean_t un; 5097 nvlist_t *nvl; 5098 }; 5099 5100 static int 5101 set_deleg_perms(zfs_handle_t *zhp, void *data) 5102 { 5103 struct deleg_perms *perms = (struct deleg_perms *)data; 5104 zfs_type_t zfs_type = zfs_get_type(zhp); 5105 5106 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5107 return (0); 5108 5109 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5110 } 5111 5112 static int 5113 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5114 { 5115 zfs_handle_t *zhp; 5116 nvlist_t *perm_nvl = NULL; 5117 nvlist_t *update_perm_nvl = NULL; 5118 int error = 1; 5119 int c; 5120 struct allow_opts opts = { 0 }; 5121 5122 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5123 5124 /* check opts */ 5125 while ((c = getopt(argc, argv, optstr)) != -1) { 5126 switch (c) { 5127 case 'l': 5128 opts.local = B_TRUE; 5129 break; 5130 case 'd': 5131 opts.descend = B_TRUE; 5132 break; 5133 case 'u': 5134 opts.user = B_TRUE; 5135 break; 5136 case 'g': 5137 opts.group = B_TRUE; 5138 break; 5139 case 'e': 5140 opts.everyone = B_TRUE; 5141 break; 5142 case 's': 5143 opts.set = B_TRUE; 5144 break; 5145 case 'c': 5146 opts.create = B_TRUE; 5147 break; 5148 case 'r': 5149 opts.recursive = B_TRUE; 5150 break; 5151 case ':': 5152 (void) fprintf(stderr, gettext("missing argument for " 5153 "'%c' option\n"), optopt); 5154 usage(B_FALSE); 5155 break; 5156 case 'h': 5157 opts.prt_usage = B_TRUE; 5158 break; 5159 case '?': 5160 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5161 optopt); 5162 usage(B_FALSE); 5163 } 5164 } 5165 5166 argc -= optind; 5167 argv += optind; 5168 5169 /* check arguments */ 5170 parse_allow_args(argc, argv, un, &opts); 5171 5172 /* try to open the dataset */ 5173 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5174 ZFS_TYPE_VOLUME)) == NULL) { 5175 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5176 opts.dataset); 5177 return (-1); 5178 } 5179 5180 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5181 goto cleanup2; 5182 5183 fs_perm_set_init(&fs_perm_set); 5184 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5185 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5186 goto cleanup1; 5187 } 5188 5189 if (opts.prt_perms) 5190 print_fs_perms(&fs_perm_set); 5191 else { 5192 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5193 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5194 goto cleanup0; 5195 5196 if (un && opts.recursive) { 5197 struct deleg_perms data = { un, update_perm_nvl }; 5198 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5199 &data) != 0) 5200 goto cleanup0; 5201 } 5202 } 5203 5204 error = 0; 5205 5206 cleanup0: 5207 nvlist_free(perm_nvl); 5208 if (update_perm_nvl != NULL) 5209 nvlist_free(update_perm_nvl); 5210 cleanup1: 5211 fs_perm_set_fini(&fs_perm_set); 5212 cleanup2: 5213 zfs_close(zhp); 5214 5215 return (error); 5216 } 5217 5218 static int 5219 zfs_do_allow(int argc, char **argv) 5220 { 5221 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5222 } 5223 5224 static int 5225 zfs_do_unallow(int argc, char **argv) 5226 { 5227 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5228 } 5229 5230 static int 5231 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5232 { 5233 int errors = 0; 5234 int i; 5235 const char *tag; 5236 boolean_t recursive = B_FALSE; 5237 const char *opts = holding ? "rt" : "r"; 5238 int c; 5239 5240 /* check options */ 5241 while ((c = getopt(argc, argv, opts)) != -1) { 5242 switch (c) { 5243 case 'r': 5244 recursive = B_TRUE; 5245 break; 5246 case '?': 5247 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5248 optopt); 5249 usage(B_FALSE); 5250 } 5251 } 5252 5253 argc -= optind; 5254 argv += optind; 5255 5256 /* check number of arguments */ 5257 if (argc < 2) 5258 usage(B_FALSE); 5259 5260 tag = argv[0]; 5261 --argc; 5262 ++argv; 5263 5264 if (holding && tag[0] == '.') { 5265 /* tags starting with '.' are reserved for libzfs */ 5266 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5267 usage(B_FALSE); 5268 } 5269 5270 for (i = 0; i < argc; ++i) { 5271 zfs_handle_t *zhp; 5272 char parent[ZFS_MAXNAMELEN]; 5273 const char *delim; 5274 char *path = argv[i]; 5275 5276 delim = strchr(path, '@'); 5277 if (delim == NULL) { 5278 (void) fprintf(stderr, 5279 gettext("'%s' is not a snapshot\n"), path); 5280 ++errors; 5281 continue; 5282 } 5283 (void) strncpy(parent, path, delim - path); 5284 parent[delim - path] = '\0'; 5285 5286 zhp = zfs_open(g_zfs, parent, 5287 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5288 if (zhp == NULL) { 5289 ++errors; 5290 continue; 5291 } 5292 if (holding) { 5293 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5294 ++errors; 5295 } else { 5296 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5297 ++errors; 5298 } 5299 zfs_close(zhp); 5300 } 5301 5302 return (errors != 0); 5303 } 5304 5305 /* 5306 * zfs hold [-r] [-t] <tag> <snap> ... 5307 * 5308 * -r Recursively hold 5309 * 5310 * Apply a user-hold with the given tag to the list of snapshots. 5311 */ 5312 static int 5313 zfs_do_hold(int argc, char **argv) 5314 { 5315 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5316 } 5317 5318 /* 5319 * zfs release [-r] <tag> <snap> ... 5320 * 5321 * -r Recursively release 5322 * 5323 * Release a user-hold with the given tag from the list of snapshots. 5324 */ 5325 static int 5326 zfs_do_release(int argc, char **argv) 5327 { 5328 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5329 } 5330 5331 typedef struct holds_cbdata { 5332 boolean_t cb_recursive; 5333 const char *cb_snapname; 5334 nvlist_t **cb_nvlp; 5335 size_t cb_max_namelen; 5336 size_t cb_max_taglen; 5337 } holds_cbdata_t; 5338 5339 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5340 #define DATETIME_BUF_LEN (32) 5341 /* 5342 * 5343 */ 5344 static void 5345 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5346 { 5347 int i; 5348 nvpair_t *nvp = NULL; 5349 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5350 const char *col; 5351 5352 if (!scripted) { 5353 for (i = 0; i < 3; i++) { 5354 col = gettext(hdr_cols[i]); 5355 if (i < 2) 5356 (void) printf("%-*s ", i ? tagwidth : nwidth, 5357 col); 5358 else 5359 (void) printf("%s\n", col); 5360 } 5361 } 5362 5363 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5364 char *zname = nvpair_name(nvp); 5365 nvlist_t *nvl2; 5366 nvpair_t *nvp2 = NULL; 5367 (void) nvpair_value_nvlist(nvp, &nvl2); 5368 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5369 char tsbuf[DATETIME_BUF_LEN]; 5370 char *tagname = nvpair_name(nvp2); 5371 uint64_t val = 0; 5372 time_t time; 5373 struct tm t; 5374 char sep = scripted ? '\t' : ' '; 5375 size_t sepnum = scripted ? 1 : 2; 5376 5377 (void) nvpair_value_uint64(nvp2, &val); 5378 time = (time_t)val; 5379 (void) localtime_r(&time, &t); 5380 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5381 gettext(STRFTIME_FMT_STR), &t); 5382 5383 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5384 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5385 } 5386 } 5387 } 5388 5389 /* 5390 * Generic callback function to list a dataset or snapshot. 5391 */ 5392 static int 5393 holds_callback(zfs_handle_t *zhp, void *data) 5394 { 5395 holds_cbdata_t *cbp = data; 5396 nvlist_t *top_nvl = *cbp->cb_nvlp; 5397 nvlist_t *nvl = NULL; 5398 nvpair_t *nvp = NULL; 5399 const char *zname = zfs_get_name(zhp); 5400 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5401 5402 if (cbp->cb_recursive) { 5403 const char *snapname; 5404 char *delim = strchr(zname, '@'); 5405 if (delim == NULL) 5406 return (0); 5407 5408 snapname = delim + 1; 5409 if (strcmp(cbp->cb_snapname, snapname)) 5410 return (0); 5411 } 5412 5413 if (zfs_get_holds(zhp, &nvl) != 0) 5414 return (-1); 5415 5416 if (znamelen > cbp->cb_max_namelen) 5417 cbp->cb_max_namelen = znamelen; 5418 5419 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5420 const char *tag = nvpair_name(nvp); 5421 size_t taglen = strnlen(tag, MAXNAMELEN); 5422 if (taglen > cbp->cb_max_taglen) 5423 cbp->cb_max_taglen = taglen; 5424 } 5425 5426 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5427 } 5428 5429 /* 5430 * zfs holds [-r] <snap> ... 5431 * 5432 * -r Recursively hold 5433 */ 5434 static int 5435 zfs_do_holds(int argc, char **argv) 5436 { 5437 int errors = 0; 5438 int c; 5439 int i; 5440 boolean_t scripted = B_FALSE; 5441 boolean_t recursive = B_FALSE; 5442 const char *opts = "rH"; 5443 nvlist_t *nvl; 5444 5445 int types = ZFS_TYPE_SNAPSHOT; 5446 holds_cbdata_t cb = { 0 }; 5447 5448 int limit = 0; 5449 int ret = 0; 5450 int flags = 0; 5451 5452 /* check options */ 5453 while ((c = getopt(argc, argv, opts)) != -1) { 5454 switch (c) { 5455 case 'r': 5456 recursive = B_TRUE; 5457 break; 5458 case 'H': 5459 scripted = B_TRUE; 5460 break; 5461 case '?': 5462 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5463 optopt); 5464 usage(B_FALSE); 5465 } 5466 } 5467 5468 if (recursive) { 5469 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5470 flags |= ZFS_ITER_RECURSE; 5471 } 5472 5473 argc -= optind; 5474 argv += optind; 5475 5476 /* check number of arguments */ 5477 if (argc < 1) 5478 usage(B_FALSE); 5479 5480 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5481 nomem(); 5482 5483 for (i = 0; i < argc; ++i) { 5484 char *snapshot = argv[i]; 5485 const char *delim; 5486 const char *snapname; 5487 5488 delim = strchr(snapshot, '@'); 5489 if (delim == NULL) { 5490 (void) fprintf(stderr, 5491 gettext("'%s' is not a snapshot\n"), snapshot); 5492 ++errors; 5493 continue; 5494 } 5495 snapname = delim + 1; 5496 if (recursive) 5497 snapshot[delim - snapshot] = '\0'; 5498 5499 cb.cb_recursive = recursive; 5500 cb.cb_snapname = snapname; 5501 cb.cb_nvlp = &nvl; 5502 5503 /* 5504 * 1. collect holds data, set format options 5505 */ 5506 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5507 holds_callback, &cb); 5508 if (ret != 0) 5509 ++errors; 5510 } 5511 5512 /* 5513 * 2. print holds data 5514 */ 5515 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5516 5517 if (nvlist_empty(nvl)) 5518 (void) printf(gettext("no datasets available\n")); 5519 5520 nvlist_free(nvl); 5521 5522 return (0 != errors); 5523 } 5524 5525 #define CHECK_SPINNER 30 5526 #define SPINNER_TIME 3 /* seconds */ 5527 #define MOUNT_TIME 5 /* seconds */ 5528 5529 static int 5530 get_one_dataset(zfs_handle_t *zhp, void *data) 5531 { 5532 static char *spin[] = { "-", "\\", "|", "/" }; 5533 static int spinval = 0; 5534 static int spincheck = 0; 5535 static time_t last_spin_time = (time_t)0; 5536 get_all_cb_t *cbp = data; 5537 zfs_type_t type = zfs_get_type(zhp); 5538 5539 if (cbp->cb_verbose) { 5540 if (--spincheck < 0) { 5541 time_t now = time(NULL); 5542 if (last_spin_time + SPINNER_TIME < now) { 5543 update_progress(spin[spinval++ % 4]); 5544 last_spin_time = now; 5545 } 5546 spincheck = CHECK_SPINNER; 5547 } 5548 } 5549 5550 /* 5551 * Interate over any nested datasets. 5552 */ 5553 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5554 zfs_close(zhp); 5555 return (1); 5556 } 5557 5558 /* 5559 * Skip any datasets whose type does not match. 5560 */ 5561 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5562 zfs_close(zhp); 5563 return (0); 5564 } 5565 libzfs_add_handle(cbp, zhp); 5566 assert(cbp->cb_used <= cbp->cb_alloc); 5567 5568 return (0); 5569 } 5570 5571 static void 5572 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5573 { 5574 get_all_cb_t cb = { 0 }; 5575 cb.cb_verbose = verbose; 5576 cb.cb_getone = get_one_dataset; 5577 5578 if (verbose) 5579 set_progress_header(gettext("Reading ZFS config")); 5580 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5581 5582 *dslist = cb.cb_handles; 5583 *count = cb.cb_used; 5584 5585 if (verbose) 5586 finish_progress(gettext("done.")); 5587 } 5588 5589 /* 5590 * Generic callback for sharing or mounting filesystems. Because the code is so 5591 * similar, we have a common function with an extra parameter to determine which 5592 * mode we are using. 5593 */ 5594 #define OP_SHARE 0x1 5595 #define OP_MOUNT 0x2 5596 5597 /* 5598 * Share or mount a dataset. 5599 */ 5600 static int 5601 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5602 boolean_t explicit, const char *options) 5603 { 5604 char mountpoint[ZFS_MAXPROPLEN]; 5605 char shareopts[ZFS_MAXPROPLEN]; 5606 char smbshareopts[ZFS_MAXPROPLEN]; 5607 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5608 struct mnttab mnt; 5609 uint64_t zoned, canmount; 5610 boolean_t shared_nfs, shared_smb; 5611 5612 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5613 5614 /* 5615 * Check to make sure we can mount/share this dataset. If we 5616 * are in the global zone and the filesystem is exported to a 5617 * local zone, or if we are in a local zone and the 5618 * filesystem is not exported, then it is an error. 5619 */ 5620 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5621 5622 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5623 if (!explicit) 5624 return (0); 5625 5626 (void) fprintf(stderr, gettext("cannot %s '%s': " 5627 "dataset is exported to a local zone\n"), cmdname, 5628 zfs_get_name(zhp)); 5629 return (1); 5630 5631 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5632 if (!explicit) 5633 return (0); 5634 5635 (void) fprintf(stderr, gettext("cannot %s '%s': " 5636 "permission denied\n"), cmdname, 5637 zfs_get_name(zhp)); 5638 return (1); 5639 } 5640 5641 /* 5642 * Ignore any filesystems which don't apply to us. This 5643 * includes those with a legacy mountpoint, or those with 5644 * legacy share options. 5645 */ 5646 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5647 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5648 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5649 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5650 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5651 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5652 5653 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5654 strcmp(smbshareopts, "off") == 0) { 5655 if (!explicit) 5656 return (0); 5657 5658 (void) fprintf(stderr, gettext("cannot share '%s': " 5659 "legacy share\n"), zfs_get_name(zhp)); 5660 (void) fprintf(stderr, gettext("use share(1M) to " 5661 "share this filesystem, or set " 5662 "sharenfs property on\n")); 5663 return (1); 5664 } 5665 5666 /* 5667 * We cannot share or mount legacy filesystems. If the 5668 * shareopts is non-legacy but the mountpoint is legacy, we 5669 * treat it as a legacy share. 5670 */ 5671 if (strcmp(mountpoint, "legacy") == 0) { 5672 if (!explicit) 5673 return (0); 5674 5675 (void) fprintf(stderr, gettext("cannot %s '%s': " 5676 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5677 (void) fprintf(stderr, gettext("use %s(1M) to " 5678 "%s this filesystem\n"), cmdname, cmdname); 5679 return (1); 5680 } 5681 5682 if (strcmp(mountpoint, "none") == 0) { 5683 if (!explicit) 5684 return (0); 5685 5686 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5687 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5688 return (1); 5689 } 5690 5691 /* 5692 * canmount explicit outcome 5693 * on no pass through 5694 * on yes pass through 5695 * off no return 0 5696 * off yes display error, return 1 5697 * noauto no return 0 5698 * noauto yes pass through 5699 */ 5700 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5701 if (canmount == ZFS_CANMOUNT_OFF) { 5702 if (!explicit) 5703 return (0); 5704 5705 (void) fprintf(stderr, gettext("cannot %s '%s': " 5706 "'canmount' property is set to 'off'\n"), cmdname, 5707 zfs_get_name(zhp)); 5708 return (1); 5709 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5710 return (0); 5711 } 5712 5713 /* 5714 * At this point, we have verified that the mountpoint and/or 5715 * shareopts are appropriate for auto management. If the 5716 * filesystem is already mounted or shared, return (failing 5717 * for explicit requests); otherwise mount or share the 5718 * filesystem. 5719 */ 5720 switch (op) { 5721 case OP_SHARE: 5722 5723 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5724 shared_smb = zfs_is_shared_smb(zhp, NULL); 5725 5726 if (shared_nfs && shared_smb || 5727 (shared_nfs && strcmp(shareopts, "on") == 0 && 5728 strcmp(smbshareopts, "off") == 0) || 5729 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5730 strcmp(shareopts, "off") == 0)) { 5731 if (!explicit) 5732 return (0); 5733 5734 (void) fprintf(stderr, gettext("cannot share " 5735 "'%s': filesystem already shared\n"), 5736 zfs_get_name(zhp)); 5737 return (1); 5738 } 5739 5740 if (!zfs_is_mounted(zhp, NULL) && 5741 zfs_mount(zhp, NULL, 0) != 0) 5742 return (1); 5743 5744 if (protocol == NULL) { 5745 if (zfs_shareall(zhp) != 0) 5746 return (1); 5747 } else if (strcmp(protocol, "nfs") == 0) { 5748 if (zfs_share_nfs(zhp)) 5749 return (1); 5750 } else if (strcmp(protocol, "smb") == 0) { 5751 if (zfs_share_smb(zhp)) 5752 return (1); 5753 } else { 5754 (void) fprintf(stderr, gettext("cannot share " 5755 "'%s': invalid share type '%s' " 5756 "specified\n"), 5757 zfs_get_name(zhp), protocol); 5758 return (1); 5759 } 5760 5761 break; 5762 5763 case OP_MOUNT: 5764 if (options == NULL) 5765 mnt.mnt_mntopts = ""; 5766 else 5767 mnt.mnt_mntopts = (char *)options; 5768 5769 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5770 zfs_is_mounted(zhp, NULL)) { 5771 if (!explicit) 5772 return (0); 5773 5774 (void) fprintf(stderr, gettext("cannot mount " 5775 "'%s': filesystem already mounted\n"), 5776 zfs_get_name(zhp)); 5777 return (1); 5778 } 5779 5780 if (zfs_mount(zhp, options, flags) != 0) 5781 return (1); 5782 break; 5783 } 5784 5785 return (0); 5786 } 5787 5788 /* 5789 * Reports progress in the form "(current/total)". Not thread-safe. 5790 */ 5791 static void 5792 report_mount_progress(int current, int total) 5793 { 5794 static time_t last_progress_time = 0; 5795 time_t now = time(NULL); 5796 char info[32]; 5797 5798 /* report 1..n instead of 0..n-1 */ 5799 ++current; 5800 5801 /* display header if we're here for the first time */ 5802 if (current == 1) { 5803 set_progress_header(gettext("Mounting ZFS filesystems")); 5804 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5805 /* too soon to report again */ 5806 return; 5807 } 5808 5809 last_progress_time = now; 5810 5811 (void) sprintf(info, "(%d/%d)", current, total); 5812 5813 if (current == total) 5814 finish_progress(info); 5815 else 5816 update_progress(info); 5817 } 5818 5819 static void 5820 append_options(char *mntopts, char *newopts) 5821 { 5822 int len = strlen(mntopts); 5823 5824 /* original length plus new string to append plus 1 for the comma */ 5825 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5826 (void) fprintf(stderr, gettext("the opts argument for " 5827 "'%c' option is too long (more than %d chars)\n"), 5828 "-o", MNT_LINE_MAX); 5829 usage(B_FALSE); 5830 } 5831 5832 if (*mntopts) 5833 mntopts[len++] = ','; 5834 5835 (void) strcpy(&mntopts[len], newopts); 5836 } 5837 5838 static int 5839 share_mount(int op, int argc, char **argv) 5840 { 5841 int do_all = 0; 5842 boolean_t verbose = B_FALSE; 5843 int c, ret = 0; 5844 char *options = NULL; 5845 int flags = 0; 5846 5847 /* check options */ 5848 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5849 != -1) { 5850 switch (c) { 5851 case 'a': 5852 do_all = 1; 5853 break; 5854 case 'v': 5855 verbose = B_TRUE; 5856 break; 5857 case 'o': 5858 if (*optarg == '\0') { 5859 (void) fprintf(stderr, gettext("empty mount " 5860 "options (-o) specified\n")); 5861 usage(B_FALSE); 5862 } 5863 5864 if (options == NULL) 5865 options = safe_malloc(MNT_LINE_MAX + 1); 5866 5867 /* option validation is done later */ 5868 append_options(options, optarg); 5869 break; 5870 5871 case 'O': 5872 flags |= MS_OVERLAY; 5873 break; 5874 case ':': 5875 (void) fprintf(stderr, gettext("missing argument for " 5876 "'%c' option\n"), optopt); 5877 usage(B_FALSE); 5878 break; 5879 case '?': 5880 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5881 optopt); 5882 usage(B_FALSE); 5883 } 5884 } 5885 5886 argc -= optind; 5887 argv += optind; 5888 5889 /* check number of arguments */ 5890 if (do_all) { 5891 zfs_handle_t **dslist = NULL; 5892 size_t i, count = 0; 5893 char *protocol = NULL; 5894 5895 if (op == OP_SHARE && argc > 0) { 5896 if (strcmp(argv[0], "nfs") != 0 && 5897 strcmp(argv[0], "smb") != 0) { 5898 (void) fprintf(stderr, gettext("share type " 5899 "must be 'nfs' or 'smb'\n")); 5900 usage(B_FALSE); 5901 } 5902 protocol = argv[0]; 5903 argc--; 5904 argv++; 5905 } 5906 5907 if (argc != 0) { 5908 (void) fprintf(stderr, gettext("too many arguments\n")); 5909 usage(B_FALSE); 5910 } 5911 5912 start_progress_timer(); 5913 get_all_datasets(&dslist, &count, verbose); 5914 5915 if (count == 0) 5916 return (0); 5917 5918 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5919 5920 for (i = 0; i < count; i++) { 5921 if (verbose) 5922 report_mount_progress(i, count); 5923 5924 if (share_mount_one(dslist[i], op, flags, protocol, 5925 B_FALSE, options) != 0) 5926 ret = 1; 5927 zfs_close(dslist[i]); 5928 } 5929 5930 free(dslist); 5931 } else if (argc == 0) { 5932 struct mnttab entry; 5933 5934 if ((op == OP_SHARE) || (options != NULL)) { 5935 (void) fprintf(stderr, gettext("missing filesystem " 5936 "argument (specify -a for all)\n")); 5937 usage(B_FALSE); 5938 } 5939 5940 /* 5941 * When mount is given no arguments, go through /etc/mnttab and 5942 * display any active ZFS mounts. We hide any snapshots, since 5943 * they are controlled automatically. 5944 */ 5945 rewind(mnttab_file); 5946 while (getmntent(mnttab_file, &entry) == 0) { 5947 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5948 strchr(entry.mnt_special, '@') != NULL) 5949 continue; 5950 5951 (void) printf("%-30s %s\n", entry.mnt_special, 5952 entry.mnt_mountp); 5953 } 5954 5955 } else { 5956 zfs_handle_t *zhp; 5957 5958 if (argc > 1) { 5959 (void) fprintf(stderr, 5960 gettext("too many arguments\n")); 5961 usage(B_FALSE); 5962 } 5963 5964 if ((zhp = zfs_open(g_zfs, argv[0], 5965 ZFS_TYPE_FILESYSTEM)) == NULL) { 5966 ret = 1; 5967 } else { 5968 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5969 options); 5970 zfs_close(zhp); 5971 } 5972 } 5973 5974 return (ret); 5975 } 5976 5977 /* 5978 * zfs mount -a [nfs] 5979 * zfs mount filesystem 5980 * 5981 * Mount all filesystems, or mount the given filesystem. 5982 */ 5983 static int 5984 zfs_do_mount(int argc, char **argv) 5985 { 5986 return (share_mount(OP_MOUNT, argc, argv)); 5987 } 5988 5989 /* 5990 * zfs share -a [nfs | smb] 5991 * zfs share filesystem 5992 * 5993 * Share all filesystems, or share the given filesystem. 5994 */ 5995 static int 5996 zfs_do_share(int argc, char **argv) 5997 { 5998 return (share_mount(OP_SHARE, argc, argv)); 5999 } 6000 6001 typedef struct unshare_unmount_node { 6002 zfs_handle_t *un_zhp; 6003 char *un_mountp; 6004 uu_avl_node_t un_avlnode; 6005 } unshare_unmount_node_t; 6006 6007 /* ARGSUSED */ 6008 static int 6009 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6010 { 6011 const unshare_unmount_node_t *l = larg; 6012 const unshare_unmount_node_t *r = rarg; 6013 6014 return (strcmp(l->un_mountp, r->un_mountp)); 6015 } 6016 6017 /* 6018 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6019 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6020 * and unmount it appropriately. 6021 */ 6022 static int 6023 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6024 { 6025 zfs_handle_t *zhp; 6026 int ret = 0; 6027 struct stat64 statbuf; 6028 struct extmnttab entry; 6029 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6030 ino_t path_inode; 6031 6032 /* 6033 * Search for the path in /etc/mnttab. Rather than looking for the 6034 * specific path, which can be fooled by non-standard paths (i.e. ".." 6035 * or "//"), we stat() the path and search for the corresponding 6036 * (major,minor) device pair. 6037 */ 6038 if (stat64(path, &statbuf) != 0) { 6039 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6040 cmdname, path, strerror(errno)); 6041 return (1); 6042 } 6043 path_inode = statbuf.st_ino; 6044 6045 /* 6046 * Search for the given (major,minor) pair in the mount table. 6047 */ 6048 rewind(mnttab_file); 6049 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6050 if (entry.mnt_major == major(statbuf.st_dev) && 6051 entry.mnt_minor == minor(statbuf.st_dev)) 6052 break; 6053 } 6054 if (ret != 0) { 6055 if (op == OP_SHARE) { 6056 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6057 "currently mounted\n"), cmdname, path); 6058 return (1); 6059 } 6060 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6061 path); 6062 if ((ret = umount2(path, flags)) != 0) 6063 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6064 strerror(errno)); 6065 return (ret != 0); 6066 } 6067 6068 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6069 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6070 "filesystem\n"), cmdname, path); 6071 return (1); 6072 } 6073 6074 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6075 ZFS_TYPE_FILESYSTEM)) == NULL) 6076 return (1); 6077 6078 ret = 1; 6079 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6080 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6081 cmdname, path, strerror(errno)); 6082 goto out; 6083 } else if (statbuf.st_ino != path_inode) { 6084 (void) fprintf(stderr, gettext("cannot " 6085 "%s '%s': not a mountpoint\n"), cmdname, path); 6086 goto out; 6087 } 6088 6089 if (op == OP_SHARE) { 6090 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6091 char smbshare_prop[ZFS_MAXPROPLEN]; 6092 6093 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6094 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6095 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6096 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6097 6098 if (strcmp(nfs_mnt_prop, "off") == 0 && 6099 strcmp(smbshare_prop, "off") == 0) { 6100 (void) fprintf(stderr, gettext("cannot unshare " 6101 "'%s': legacy share\n"), path); 6102 (void) fprintf(stderr, gettext("use " 6103 "unshare(1M) to unshare this filesystem\n")); 6104 } else if (!zfs_is_shared(zhp)) { 6105 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6106 "not currently shared\n"), path); 6107 } else { 6108 ret = zfs_unshareall_bypath(zhp, path); 6109 } 6110 } else { 6111 char mtpt_prop[ZFS_MAXPROPLEN]; 6112 6113 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6114 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6115 6116 if (is_manual) { 6117 ret = zfs_unmount(zhp, NULL, flags); 6118 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6119 (void) fprintf(stderr, gettext("cannot unmount " 6120 "'%s': legacy mountpoint\n"), 6121 zfs_get_name(zhp)); 6122 (void) fprintf(stderr, gettext("use umount(1M) " 6123 "to unmount this filesystem\n")); 6124 } else { 6125 ret = zfs_unmountall(zhp, flags); 6126 } 6127 } 6128 6129 out: 6130 zfs_close(zhp); 6131 6132 return (ret != 0); 6133 } 6134 6135 /* 6136 * Generic callback for unsharing or unmounting a filesystem. 6137 */ 6138 static int 6139 unshare_unmount(int op, int argc, char **argv) 6140 { 6141 int do_all = 0; 6142 int flags = 0; 6143 int ret = 0; 6144 int c; 6145 zfs_handle_t *zhp; 6146 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6147 char sharesmb[ZFS_MAXPROPLEN]; 6148 6149 /* check options */ 6150 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6151 switch (c) { 6152 case 'a': 6153 do_all = 1; 6154 break; 6155 case 'f': 6156 flags = MS_FORCE; 6157 break; 6158 case '?': 6159 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6160 optopt); 6161 usage(B_FALSE); 6162 } 6163 } 6164 6165 argc -= optind; 6166 argv += optind; 6167 6168 if (do_all) { 6169 /* 6170 * We could make use of zfs_for_each() to walk all datasets in 6171 * the system, but this would be very inefficient, especially 6172 * since we would have to linearly search /etc/mnttab for each 6173 * one. Instead, do one pass through /etc/mnttab looking for 6174 * zfs entries and call zfs_unmount() for each one. 6175 * 6176 * Things get a little tricky if the administrator has created 6177 * mountpoints beneath other ZFS filesystems. In this case, we 6178 * have to unmount the deepest filesystems first. To accomplish 6179 * this, we place all the mountpoints in an AVL tree sorted by 6180 * the special type (dataset name), and walk the result in 6181 * reverse to make sure to get any snapshots first. 6182 */ 6183 struct mnttab entry; 6184 uu_avl_pool_t *pool; 6185 uu_avl_t *tree; 6186 unshare_unmount_node_t *node; 6187 uu_avl_index_t idx; 6188 uu_avl_walk_t *walk; 6189 6190 if (argc != 0) { 6191 (void) fprintf(stderr, gettext("too many arguments\n")); 6192 usage(B_FALSE); 6193 } 6194 6195 if (((pool = uu_avl_pool_create("unmount_pool", 6196 sizeof (unshare_unmount_node_t), 6197 offsetof(unshare_unmount_node_t, un_avlnode), 6198 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6199 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6200 nomem(); 6201 6202 rewind(mnttab_file); 6203 while (getmntent(mnttab_file, &entry) == 0) { 6204 6205 /* ignore non-ZFS entries */ 6206 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6207 continue; 6208 6209 /* ignore snapshots */ 6210 if (strchr(entry.mnt_special, '@') != NULL) 6211 continue; 6212 6213 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6214 ZFS_TYPE_FILESYSTEM)) == NULL) { 6215 ret = 1; 6216 continue; 6217 } 6218 6219 switch (op) { 6220 case OP_SHARE: 6221 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6222 nfs_mnt_prop, 6223 sizeof (nfs_mnt_prop), 6224 NULL, NULL, 0, B_FALSE) == 0); 6225 if (strcmp(nfs_mnt_prop, "off") != 0) 6226 break; 6227 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6228 nfs_mnt_prop, 6229 sizeof (nfs_mnt_prop), 6230 NULL, NULL, 0, B_FALSE) == 0); 6231 if (strcmp(nfs_mnt_prop, "off") == 0) 6232 continue; 6233 break; 6234 case OP_MOUNT: 6235 /* Ignore legacy mounts */ 6236 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6237 nfs_mnt_prop, 6238 sizeof (nfs_mnt_prop), 6239 NULL, NULL, 0, B_FALSE) == 0); 6240 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6241 continue; 6242 /* Ignore canmount=noauto mounts */ 6243 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6244 ZFS_CANMOUNT_NOAUTO) 6245 continue; 6246 default: 6247 break; 6248 } 6249 6250 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6251 node->un_zhp = zhp; 6252 node->un_mountp = safe_strdup(entry.mnt_mountp); 6253 6254 uu_avl_node_init(node, &node->un_avlnode, pool); 6255 6256 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6257 uu_avl_insert(tree, node, idx); 6258 } else { 6259 zfs_close(node->un_zhp); 6260 free(node->un_mountp); 6261 free(node); 6262 } 6263 } 6264 6265 /* 6266 * Walk the AVL tree in reverse, unmounting each filesystem and 6267 * removing it from the AVL tree in the process. 6268 */ 6269 if ((walk = uu_avl_walk_start(tree, 6270 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6271 nomem(); 6272 6273 while ((node = uu_avl_walk_next(walk)) != NULL) { 6274 uu_avl_remove(tree, node); 6275 6276 switch (op) { 6277 case OP_SHARE: 6278 if (zfs_unshareall_bypath(node->un_zhp, 6279 node->un_mountp) != 0) 6280 ret = 1; 6281 break; 6282 6283 case OP_MOUNT: 6284 if (zfs_unmount(node->un_zhp, 6285 node->un_mountp, flags) != 0) 6286 ret = 1; 6287 break; 6288 } 6289 6290 zfs_close(node->un_zhp); 6291 free(node->un_mountp); 6292 free(node); 6293 } 6294 6295 uu_avl_walk_end(walk); 6296 uu_avl_destroy(tree); 6297 uu_avl_pool_destroy(pool); 6298 6299 } else { 6300 if (argc != 1) { 6301 if (argc == 0) 6302 (void) fprintf(stderr, 6303 gettext("missing filesystem argument\n")); 6304 else 6305 (void) fprintf(stderr, 6306 gettext("too many arguments\n")); 6307 usage(B_FALSE); 6308 } 6309 6310 /* 6311 * We have an argument, but it may be a full path or a ZFS 6312 * filesystem. Pass full paths off to unmount_path() (shared by 6313 * manual_unmount), otherwise open the filesystem and pass to 6314 * zfs_unmount(). 6315 */ 6316 if (argv[0][0] == '/') 6317 return (unshare_unmount_path(op, argv[0], 6318 flags, B_FALSE)); 6319 6320 if ((zhp = zfs_open(g_zfs, argv[0], 6321 ZFS_TYPE_FILESYSTEM)) == NULL) 6322 return (1); 6323 6324 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6325 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6326 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6327 NULL, 0, B_FALSE) == 0); 6328 6329 switch (op) { 6330 case OP_SHARE: 6331 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6332 nfs_mnt_prop, 6333 sizeof (nfs_mnt_prop), 6334 NULL, NULL, 0, B_FALSE) == 0); 6335 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6336 sharesmb, sizeof (sharesmb), NULL, NULL, 6337 0, B_FALSE) == 0); 6338 6339 if (strcmp(nfs_mnt_prop, "off") == 0 && 6340 strcmp(sharesmb, "off") == 0) { 6341 (void) fprintf(stderr, gettext("cannot " 6342 "unshare '%s': legacy share\n"), 6343 zfs_get_name(zhp)); 6344 (void) fprintf(stderr, gettext("use " 6345 "unshare(1M) to unshare this " 6346 "filesystem\n")); 6347 ret = 1; 6348 } else if (!zfs_is_shared(zhp)) { 6349 (void) fprintf(stderr, gettext("cannot " 6350 "unshare '%s': not currently " 6351 "shared\n"), zfs_get_name(zhp)); 6352 ret = 1; 6353 } else if (zfs_unshareall(zhp) != 0) { 6354 ret = 1; 6355 } 6356 break; 6357 6358 case OP_MOUNT: 6359 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6360 (void) fprintf(stderr, gettext("cannot " 6361 "unmount '%s': legacy " 6362 "mountpoint\n"), zfs_get_name(zhp)); 6363 (void) fprintf(stderr, gettext("use " 6364 "umount(1M) to unmount this " 6365 "filesystem\n")); 6366 ret = 1; 6367 } else if (!zfs_is_mounted(zhp, NULL)) { 6368 (void) fprintf(stderr, gettext("cannot " 6369 "unmount '%s': not currently " 6370 "mounted\n"), 6371 zfs_get_name(zhp)); 6372 ret = 1; 6373 } else if (zfs_unmountall(zhp, flags) != 0) { 6374 ret = 1; 6375 } 6376 break; 6377 } 6378 6379 zfs_close(zhp); 6380 } 6381 6382 return (ret); 6383 } 6384 6385 /* 6386 * zfs unmount -a 6387 * zfs unmount filesystem 6388 * 6389 * Unmount all filesystems, or a specific ZFS filesystem. 6390 */ 6391 static int 6392 zfs_do_unmount(int argc, char **argv) 6393 { 6394 return (unshare_unmount(OP_MOUNT, argc, argv)); 6395 } 6396 6397 /* 6398 * zfs unshare -a 6399 * zfs unshare filesystem 6400 * 6401 * Unshare all filesystems, or a specific ZFS filesystem. 6402 */ 6403 static int 6404 zfs_do_unshare(int argc, char **argv) 6405 { 6406 return (unshare_unmount(OP_SHARE, argc, argv)); 6407 } 6408 6409 /* 6410 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6411 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6412 */ 6413 static int 6414 manual_mount(int argc, char **argv) 6415 { 6416 zfs_handle_t *zhp; 6417 char mountpoint[ZFS_MAXPROPLEN]; 6418 char mntopts[MNT_LINE_MAX] = { '\0' }; 6419 int ret = 0; 6420 int c; 6421 int flags = 0; 6422 char *dataset, *path; 6423 6424 /* check options */ 6425 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6426 switch (c) { 6427 case 'o': 6428 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6429 break; 6430 case 'O': 6431 flags |= MS_OVERLAY; 6432 break; 6433 case 'm': 6434 flags |= MS_NOMNTTAB; 6435 break; 6436 case ':': 6437 (void) fprintf(stderr, gettext("missing argument for " 6438 "'%c' option\n"), optopt); 6439 usage(B_FALSE); 6440 break; 6441 case '?': 6442 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6443 optopt); 6444 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6445 "<path>\n")); 6446 return (2); 6447 } 6448 } 6449 6450 argc -= optind; 6451 argv += optind; 6452 6453 /* check that we only have two arguments */ 6454 if (argc != 2) { 6455 if (argc == 0) 6456 (void) fprintf(stderr, gettext("missing dataset " 6457 "argument\n")); 6458 else if (argc == 1) 6459 (void) fprintf(stderr, 6460 gettext("missing mountpoint argument\n")); 6461 else 6462 (void) fprintf(stderr, gettext("too many arguments\n")); 6463 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6464 return (2); 6465 } 6466 6467 dataset = argv[0]; 6468 path = argv[1]; 6469 6470 /* try to open the dataset */ 6471 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6472 return (1); 6473 6474 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6475 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6476 6477 /* check for legacy mountpoint and complain appropriately */ 6478 ret = 0; 6479 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6480 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6481 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6482 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6483 strerror(errno)); 6484 ret = 1; 6485 } 6486 } else { 6487 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6488 "mounted using 'mount -F zfs'\n"), dataset); 6489 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6490 "instead.\n"), path); 6491 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6492 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6493 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6494 "information.\n")); 6495 ret = 1; 6496 } 6497 6498 return (ret); 6499 } 6500 6501 /* 6502 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6503 * unmounts of non-legacy filesystems, as this is the dominant administrative 6504 * interface. 6505 */ 6506 static int 6507 manual_unmount(int argc, char **argv) 6508 { 6509 int flags = 0; 6510 int c; 6511 6512 /* check options */ 6513 while ((c = getopt(argc, argv, "f")) != -1) { 6514 switch (c) { 6515 case 'f': 6516 flags = MS_FORCE; 6517 break; 6518 case '?': 6519 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6520 optopt); 6521 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6522 "<path>\n")); 6523 return (2); 6524 } 6525 } 6526 6527 argc -= optind; 6528 argv += optind; 6529 6530 /* check arguments */ 6531 if (argc != 1) { 6532 if (argc == 0) 6533 (void) fprintf(stderr, gettext("missing path " 6534 "argument\n")); 6535 else 6536 (void) fprintf(stderr, gettext("too many arguments\n")); 6537 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6538 return (2); 6539 } 6540 6541 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6542 } 6543 6544 static int 6545 find_command_idx(char *command, int *idx) 6546 { 6547 int i; 6548 6549 for (i = 0; i < NCOMMAND; i++) { 6550 if (command_table[i].name == NULL) 6551 continue; 6552 6553 if (strcmp(command, command_table[i].name) == 0) { 6554 *idx = i; 6555 return (0); 6556 } 6557 } 6558 return (1); 6559 } 6560 6561 static int 6562 zfs_do_diff(int argc, char **argv) 6563 { 6564 zfs_handle_t *zhp; 6565 int flags = 0; 6566 char *tosnap = NULL; 6567 char *fromsnap = NULL; 6568 char *atp, *copy; 6569 int err = 0; 6570 int c; 6571 6572 while ((c = getopt(argc, argv, "FHt")) != -1) { 6573 switch (c) { 6574 case 'F': 6575 flags |= ZFS_DIFF_CLASSIFY; 6576 break; 6577 case 'H': 6578 flags |= ZFS_DIFF_PARSEABLE; 6579 break; 6580 case 't': 6581 flags |= ZFS_DIFF_TIMESTAMP; 6582 break; 6583 default: 6584 (void) fprintf(stderr, 6585 gettext("invalid option '%c'\n"), optopt); 6586 usage(B_FALSE); 6587 } 6588 } 6589 6590 argc -= optind; 6591 argv += optind; 6592 6593 if (argc < 1) { 6594 (void) fprintf(stderr, 6595 gettext("must provide at least one snapshot name\n")); 6596 usage(B_FALSE); 6597 } 6598 6599 if (argc > 2) { 6600 (void) fprintf(stderr, gettext("too many arguments\n")); 6601 usage(B_FALSE); 6602 } 6603 6604 fromsnap = argv[0]; 6605 tosnap = (argc == 2) ? argv[1] : NULL; 6606 6607 copy = NULL; 6608 if (*fromsnap != '@') 6609 copy = strdup(fromsnap); 6610 else if (tosnap) 6611 copy = strdup(tosnap); 6612 if (copy == NULL) 6613 usage(B_FALSE); 6614 6615 if (atp = strchr(copy, '@')) 6616 *atp = '\0'; 6617 6618 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6619 return (1); 6620 6621 free(copy); 6622 6623 /* 6624 * Ignore SIGPIPE so that the library can give us 6625 * information on any failure 6626 */ 6627 (void) sigignore(SIGPIPE); 6628 6629 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6630 6631 zfs_close(zhp); 6632 6633 return (err != 0); 6634 } 6635 6636 /* 6637 * zfs bookmark <fs@snap> <fs#bmark> 6638 * 6639 * Creates a bookmark with the given name from the given snapshot. 6640 */ 6641 static int 6642 zfs_do_bookmark(int argc, char **argv) 6643 { 6644 char snapname[ZFS_MAXNAMELEN]; 6645 zfs_handle_t *zhp; 6646 nvlist_t *nvl; 6647 int ret = 0; 6648 int c; 6649 6650 /* check options */ 6651 while ((c = getopt(argc, argv, "")) != -1) { 6652 switch (c) { 6653 case '?': 6654 (void) fprintf(stderr, 6655 gettext("invalid option '%c'\n"), optopt); 6656 goto usage; 6657 } 6658 } 6659 6660 argc -= optind; 6661 argv += optind; 6662 6663 /* check number of arguments */ 6664 if (argc < 1) { 6665 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6666 goto usage; 6667 } 6668 if (argc < 2) { 6669 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6670 goto usage; 6671 } 6672 6673 if (strchr(argv[1], '#') == NULL) { 6674 (void) fprintf(stderr, 6675 gettext("invalid bookmark name '%s' -- " 6676 "must contain a '#'\n"), argv[1]); 6677 goto usage; 6678 } 6679 6680 if (argv[0][0] == '@') { 6681 /* 6682 * Snapshot name begins with @. 6683 * Default to same fs as bookmark. 6684 */ 6685 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6686 *strchr(snapname, '#') = '\0'; 6687 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6688 } else { 6689 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6690 } 6691 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6692 if (zhp == NULL) 6693 goto usage; 6694 zfs_close(zhp); 6695 6696 6697 nvl = fnvlist_alloc(); 6698 fnvlist_add_string(nvl, argv[1], snapname); 6699 ret = lzc_bookmark(nvl, NULL); 6700 fnvlist_free(nvl); 6701 6702 if (ret != 0) { 6703 const char *err_msg; 6704 char errbuf[1024]; 6705 6706 (void) snprintf(errbuf, sizeof (errbuf), 6707 dgettext(TEXT_DOMAIN, 6708 "cannot create bookmark '%s'"), argv[1]); 6709 6710 switch (ret) { 6711 case EXDEV: 6712 err_msg = "bookmark is in a different pool"; 6713 break; 6714 case EEXIST: 6715 err_msg = "bookmark exists"; 6716 break; 6717 case EINVAL: 6718 err_msg = "invalid argument"; 6719 break; 6720 case ENOTSUP: 6721 err_msg = "bookmark feature not enabled"; 6722 break; 6723 case ENOSPC: 6724 err_msg = "out of space"; 6725 break; 6726 default: 6727 err_msg = "unknown error"; 6728 break; 6729 } 6730 (void) fprintf(stderr, "%s: %s\n", errbuf, 6731 dgettext(TEXT_DOMAIN, err_msg)); 6732 } 6733 6734 return (ret != 0); 6735 6736 usage: 6737 usage(B_FALSE); 6738 return (-1); 6739 } 6740 6741 int 6742 main(int argc, char **argv) 6743 { 6744 int ret = 0; 6745 int i; 6746 char *progname; 6747 char *cmdname; 6748 6749 (void) setlocale(LC_ALL, ""); 6750 (void) textdomain(TEXT_DOMAIN); 6751 6752 opterr = 0; 6753 6754 if ((g_zfs = libzfs_init()) == NULL) { 6755 (void) fprintf(stderr, gettext("internal error: failed to " 6756 "initialize ZFS library\n")); 6757 return (1); 6758 } 6759 6760 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6761 6762 libzfs_print_on_error(g_zfs, B_TRUE); 6763 6764 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6765 (void) fprintf(stderr, gettext("internal error: unable to " 6766 "open %s\n"), MNTTAB); 6767 return (1); 6768 } 6769 6770 /* 6771 * This command also doubles as the /etc/fs mount and unmount program. 6772 * Determine if we should take this behavior based on argv[0]. 6773 */ 6774 progname = basename(argv[0]); 6775 if (strcmp(progname, "mount") == 0) { 6776 ret = manual_mount(argc, argv); 6777 } else if (strcmp(progname, "umount") == 0) { 6778 ret = manual_unmount(argc, argv); 6779 } else { 6780 /* 6781 * Make sure the user has specified some command. 6782 */ 6783 if (argc < 2) { 6784 (void) fprintf(stderr, gettext("missing command\n")); 6785 usage(B_FALSE); 6786 } 6787 6788 cmdname = argv[1]; 6789 6790 /* 6791 * The 'umount' command is an alias for 'unmount' 6792 */ 6793 if (strcmp(cmdname, "umount") == 0) 6794 cmdname = "unmount"; 6795 6796 /* 6797 * The 'recv' command is an alias for 'receive' 6798 */ 6799 if (strcmp(cmdname, "recv") == 0) 6800 cmdname = "receive"; 6801 6802 /* 6803 * The 'snap' command is an alias for 'snapshot' 6804 */ 6805 if (strcmp(cmdname, "snap") == 0) 6806 cmdname = "snapshot"; 6807 6808 /* 6809 * Special case '-?' 6810 */ 6811 if (strcmp(cmdname, "-?") == 0) 6812 usage(B_TRUE); 6813 6814 /* 6815 * Run the appropriate command. 6816 */ 6817 libzfs_mnttab_cache(g_zfs, B_TRUE); 6818 if (find_command_idx(cmdname, &i) == 0) { 6819 current_command = &command_table[i]; 6820 ret = command_table[i].func(argc - 1, argv + 1); 6821 } else if (strchr(cmdname, '=') != NULL) { 6822 verify(find_command_idx("set", &i) == 0); 6823 current_command = &command_table[i]; 6824 ret = command_table[i].func(argc, argv); 6825 } else { 6826 (void) fprintf(stderr, gettext("unrecognized " 6827 "command '%s'\n"), cmdname); 6828 usage(B_FALSE); 6829 } 6830 libzfs_mnttab_cache(g_zfs, B_FALSE); 6831 } 6832 6833 (void) fclose(mnttab_file); 6834 6835 if (ret == 0 && log_history) 6836 (void) zpool_log_history(g_zfs, history_str); 6837 6838 libzfs_fini(g_zfs); 6839 6840 /* 6841 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6842 * for the purposes of running ::findleaks. 6843 */ 6844 if (getenv("ZFS_ABORT") != NULL) { 6845 (void) printf("dumping core by request\n"); 6846 abort(); 6847 } 6848 6849 return (ret); 6850 } 6851