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, 2015 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 [-vnsFu] <filesystem|volume|" 250 "snapshot>\n" 251 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 252 "<filesystem>\n" 253 "\treceive -A <filesystem|volume>\n")); 254 case HELP_RENAME: 255 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 256 "<filesystem|volume|snapshot>\n" 257 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 258 "\trename -r <snapshot> <snapshot>\n")); 259 case HELP_ROLLBACK: 260 return (gettext("\trollback [-rRf] <snapshot>\n")); 261 case HELP_SEND: 262 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 263 "<snapshot>\n" 264 "\tsend [-Le] [-i snapshot|bookmark] " 265 "<filesystem|volume|snapshot>\n" 266 "\tsend [-nvPe] -t <receive_resume_token>\n")); 267 case HELP_SET: 268 return (gettext("\tset <property=value> ... " 269 "<filesystem|volume|snapshot> ...\n")); 270 case HELP_SHARE: 271 return (gettext("\tshare <-a | filesystem>\n")); 272 case HELP_SNAPSHOT: 273 return (gettext("\tsnapshot [-r] [-o property=value] ... " 274 "<filesystem|volume>@<snap> ...\n")); 275 case HELP_UNMOUNT: 276 return (gettext("\tunmount [-f] " 277 "<-a | filesystem|mountpoint>\n")); 278 case HELP_UNSHARE: 279 return (gettext("\tunshare " 280 "<-a | filesystem|mountpoint>\n")); 281 case HELP_ALLOW: 282 return (gettext("\tallow <filesystem|volume>\n" 283 "\tallow [-ldug] " 284 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 285 "\t <filesystem|volume>\n" 286 "\tallow [-ld] -e <perm|@setname>[,...] " 287 "<filesystem|volume>\n" 288 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 289 "\tallow -s @setname <perm|@setname>[,...] " 290 "<filesystem|volume>\n")); 291 case HELP_UNALLOW: 292 return (gettext("\tunallow [-rldug] " 293 "<\"everyone\"|user|group>[,...]\n" 294 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 295 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 296 "<filesystem|volume>\n" 297 "\tunallow [-r] -c [<perm|@setname>[,...]] " 298 "<filesystem|volume>\n" 299 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 300 "<filesystem|volume>\n")); 301 case HELP_USERSPACE: 302 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 303 "[-s field] ...\n" 304 "\t [-S field] ... [-t type[,...]] " 305 "<filesystem|snapshot>\n")); 306 case HELP_GROUPSPACE: 307 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 308 "[-s field] ...\n" 309 "\t [-S field] ... [-t type[,...]] " 310 "<filesystem|snapshot>\n")); 311 case HELP_HOLD: 312 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 313 case HELP_HOLDS: 314 return (gettext("\tholds [-r] <snapshot> ...\n")); 315 case HELP_RELEASE: 316 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 317 case HELP_DIFF: 318 return (gettext("\tdiff [-FHt] <snapshot> " 319 "[snapshot|filesystem]\n")); 320 case HELP_BOOKMARK: 321 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 322 } 323 324 abort(); 325 /* NOTREACHED */ 326 } 327 328 void 329 nomem(void) 330 { 331 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 332 exit(1); 333 } 334 335 /* 336 * Utility function to guarantee malloc() success. 337 */ 338 339 void * 340 safe_malloc(size_t size) 341 { 342 void *data; 343 344 if ((data = calloc(1, size)) == NULL) 345 nomem(); 346 347 return (data); 348 } 349 350 static char * 351 safe_strdup(char *str) 352 { 353 char *dupstr = strdup(str); 354 355 if (dupstr == NULL) 356 nomem(); 357 358 return (dupstr); 359 } 360 361 /* 362 * Callback routine that will print out information for each of 363 * the properties. 364 */ 365 static int 366 usage_prop_cb(int prop, void *cb) 367 { 368 FILE *fp = cb; 369 370 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 371 372 if (zfs_prop_readonly(prop)) 373 (void) fprintf(fp, " NO "); 374 else 375 (void) fprintf(fp, "YES "); 376 377 if (zfs_prop_inheritable(prop)) 378 (void) fprintf(fp, " YES "); 379 else 380 (void) fprintf(fp, " NO "); 381 382 if (zfs_prop_values(prop) == NULL) 383 (void) fprintf(fp, "-\n"); 384 else 385 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 386 387 return (ZPROP_CONT); 388 } 389 390 /* 391 * Display usage message. If we're inside a command, display only the usage for 392 * that command. Otherwise, iterate over the entire command table and display 393 * a complete usage message. 394 */ 395 static void 396 usage(boolean_t requested) 397 { 398 int i; 399 boolean_t show_properties = B_FALSE; 400 FILE *fp = requested ? stdout : stderr; 401 402 if (current_command == NULL) { 403 404 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 405 (void) fprintf(fp, 406 gettext("where 'command' is one of the following:\n\n")); 407 408 for (i = 0; i < NCOMMAND; i++) { 409 if (command_table[i].name == NULL) 410 (void) fprintf(fp, "\n"); 411 else 412 (void) fprintf(fp, "%s", 413 get_usage(command_table[i].usage)); 414 } 415 416 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 417 "pool/[dataset/]*dataset[@name]\n")); 418 } else { 419 (void) fprintf(fp, gettext("usage:\n")); 420 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 421 } 422 423 if (current_command != NULL && 424 (strcmp(current_command->name, "set") == 0 || 425 strcmp(current_command->name, "get") == 0 || 426 strcmp(current_command->name, "inherit") == 0 || 427 strcmp(current_command->name, "list") == 0)) 428 show_properties = B_TRUE; 429 430 if (show_properties) { 431 (void) fprintf(fp, 432 gettext("\nThe following properties are supported:\n")); 433 434 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 435 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 436 437 /* Iterate over all properties */ 438 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 439 ZFS_TYPE_DATASET); 440 441 (void) fprintf(fp, "\t%-15s ", "userused@..."); 442 (void) fprintf(fp, " NO NO <size>\n"); 443 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 444 (void) fprintf(fp, " NO NO <size>\n"); 445 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 446 (void) fprintf(fp, "YES NO <size> | none\n"); 447 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 448 (void) fprintf(fp, "YES NO <size> | none\n"); 449 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 450 (void) fprintf(fp, " NO NO <size>\n"); 451 452 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 453 "with standard units such as K, M, G, etc.\n")); 454 (void) fprintf(fp, gettext("\nUser-defined properties can " 455 "be specified by using a name containing a colon (:).\n")); 456 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 457 "properties must be appended with\n" 458 "a user or group specifier of one of these forms:\n" 459 " POSIX name (eg: \"matt\")\n" 460 " POSIX id (eg: \"126829\")\n" 461 " SMB name@domain (eg: \"matt@sun\")\n" 462 " SMB SID (eg: \"S-1-234-567-89\")\n")); 463 } else { 464 (void) fprintf(fp, 465 gettext("\nFor the property list, run: %s\n"), 466 "zfs set|get"); 467 (void) fprintf(fp, 468 gettext("\nFor the delegated permission list, run: %s\n"), 469 "zfs allow|unallow"); 470 } 471 472 /* 473 * See comments at end of main(). 474 */ 475 if (getenv("ZFS_ABORT") != NULL) { 476 (void) printf("dumping core by request\n"); 477 abort(); 478 } 479 480 exit(requested ? 0 : 2); 481 } 482 483 /* 484 * Take a property=value argument string and add it to the given nvlist. 485 * Modifies the argument inplace. 486 */ 487 static int 488 parseprop(nvlist_t *props, char *propname) 489 { 490 char *propval, *strval; 491 492 if ((propval = strchr(propname, '=')) == NULL) { 493 (void) fprintf(stderr, gettext("missing " 494 "'=' for property=value argument\n")); 495 return (-1); 496 } 497 *propval = '\0'; 498 propval++; 499 if (nvlist_lookup_string(props, propname, &strval) == 0) { 500 (void) fprintf(stderr, gettext("property '%s' " 501 "specified multiple times\n"), propname); 502 return (-1); 503 } 504 if (nvlist_add_string(props, propname, propval) != 0) 505 nomem(); 506 return (0); 507 } 508 509 static int 510 parse_depth(char *opt, int *flags) 511 { 512 char *tmp; 513 int depth; 514 515 depth = (int)strtol(opt, &tmp, 0); 516 if (*tmp) { 517 (void) fprintf(stderr, 518 gettext("%s is not an integer\n"), optarg); 519 usage(B_FALSE); 520 } 521 if (depth < 0) { 522 (void) fprintf(stderr, 523 gettext("Depth can not be negative.\n")); 524 usage(B_FALSE); 525 } 526 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 527 return (depth); 528 } 529 530 #define PROGRESS_DELAY 2 /* seconds */ 531 532 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"; 533 static time_t pt_begin; 534 static char *pt_header = NULL; 535 static boolean_t pt_shown; 536 537 static void 538 start_progress_timer(void) 539 { 540 pt_begin = time(NULL) + PROGRESS_DELAY; 541 pt_shown = B_FALSE; 542 } 543 544 static void 545 set_progress_header(char *header) 546 { 547 assert(pt_header == NULL); 548 pt_header = safe_strdup(header); 549 if (pt_shown) { 550 (void) printf("%s: ", header); 551 (void) fflush(stdout); 552 } 553 } 554 555 static void 556 update_progress(char *update) 557 { 558 if (!pt_shown && time(NULL) > pt_begin) { 559 int len = strlen(update); 560 561 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 562 pt_reverse); 563 (void) fflush(stdout); 564 pt_shown = B_TRUE; 565 } else if (pt_shown) { 566 int len = strlen(update); 567 568 (void) printf("%s%*.*s", update, len, len, pt_reverse); 569 (void) fflush(stdout); 570 } 571 } 572 573 static void 574 finish_progress(char *done) 575 { 576 if (pt_shown) { 577 (void) printf("%s\n", done); 578 (void) fflush(stdout); 579 } 580 free(pt_header); 581 pt_header = NULL; 582 } 583 584 /* 585 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 586 * 587 * Given an existing dataset, create a writable copy whose initial contents 588 * are the same as the source. The newly created dataset maintains a 589 * dependency on the original; the original cannot be destroyed so long as 590 * the clone exists. 591 * 592 * The '-p' flag creates all the non-existing ancestors of the target first. 593 */ 594 static int 595 zfs_do_clone(int argc, char **argv) 596 { 597 zfs_handle_t *zhp = NULL; 598 boolean_t parents = B_FALSE; 599 nvlist_t *props; 600 int ret = 0; 601 int c; 602 603 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 604 nomem(); 605 606 /* check options */ 607 while ((c = getopt(argc, argv, "o:p")) != -1) { 608 switch (c) { 609 case 'o': 610 if (parseprop(props, optarg) != 0) 611 return (1); 612 break; 613 case 'p': 614 parents = B_TRUE; 615 break; 616 case '?': 617 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 618 optopt); 619 goto usage; 620 } 621 } 622 623 argc -= optind; 624 argv += optind; 625 626 /* check number of arguments */ 627 if (argc < 1) { 628 (void) fprintf(stderr, gettext("missing source dataset " 629 "argument\n")); 630 goto usage; 631 } 632 if (argc < 2) { 633 (void) fprintf(stderr, gettext("missing target dataset " 634 "argument\n")); 635 goto usage; 636 } 637 if (argc > 2) { 638 (void) fprintf(stderr, gettext("too many arguments\n")); 639 goto usage; 640 } 641 642 /* open the source dataset */ 643 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 644 return (1); 645 646 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 647 ZFS_TYPE_VOLUME)) { 648 /* 649 * Now create the ancestors of the target dataset. If the 650 * target already exists and '-p' option was used we should not 651 * complain. 652 */ 653 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 654 ZFS_TYPE_VOLUME)) 655 return (0); 656 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 657 return (1); 658 } 659 660 /* pass to libzfs */ 661 ret = zfs_clone(zhp, argv[1], props); 662 663 /* create the mountpoint if necessary */ 664 if (ret == 0) { 665 zfs_handle_t *clone; 666 667 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 668 if (clone != NULL) { 669 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 670 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 671 ret = zfs_share(clone); 672 zfs_close(clone); 673 } 674 } 675 676 zfs_close(zhp); 677 nvlist_free(props); 678 679 return (!!ret); 680 681 usage: 682 if (zhp) 683 zfs_close(zhp); 684 nvlist_free(props); 685 usage(B_FALSE); 686 return (-1); 687 } 688 689 /* 690 * zfs create [-p] [-o prop=value] ... fs 691 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 692 * 693 * Create a new dataset. This command can be used to create filesystems 694 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 695 * For volumes, the user must specify a size to be used. 696 * 697 * The '-s' flag applies only to volumes, and indicates that we should not try 698 * to set the reservation for this volume. By default we set a reservation 699 * equal to the size for any volume. For pools with SPA_VERSION >= 700 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 701 * 702 * The '-p' flag creates all the non-existing ancestors of the target first. 703 */ 704 static int 705 zfs_do_create(int argc, char **argv) 706 { 707 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 708 zfs_handle_t *zhp = NULL; 709 uint64_t volsize; 710 int c; 711 boolean_t noreserve = B_FALSE; 712 boolean_t bflag = B_FALSE; 713 boolean_t parents = B_FALSE; 714 int ret = 1; 715 nvlist_t *props; 716 uint64_t intval; 717 int canmount = ZFS_CANMOUNT_OFF; 718 719 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 720 nomem(); 721 722 /* check options */ 723 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 724 switch (c) { 725 case 'V': 726 type = ZFS_TYPE_VOLUME; 727 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 728 (void) fprintf(stderr, gettext("bad volume " 729 "size '%s': %s\n"), optarg, 730 libzfs_error_description(g_zfs)); 731 goto error; 732 } 733 734 if (nvlist_add_uint64(props, 735 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 736 nomem(); 737 volsize = intval; 738 break; 739 case 'p': 740 parents = B_TRUE; 741 break; 742 case 'b': 743 bflag = B_TRUE; 744 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 745 (void) fprintf(stderr, gettext("bad volume " 746 "block size '%s': %s\n"), optarg, 747 libzfs_error_description(g_zfs)); 748 goto error; 749 } 750 751 if (nvlist_add_uint64(props, 752 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 753 intval) != 0) 754 nomem(); 755 break; 756 case 'o': 757 if (parseprop(props, optarg) != 0) 758 goto error; 759 break; 760 case 's': 761 noreserve = B_TRUE; 762 break; 763 case ':': 764 (void) fprintf(stderr, gettext("missing size " 765 "argument\n")); 766 goto badusage; 767 case '?': 768 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 769 optopt); 770 goto badusage; 771 } 772 } 773 774 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 775 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 776 "used when creating a volume\n")); 777 goto badusage; 778 } 779 780 argc -= optind; 781 argv += optind; 782 783 /* check number of arguments */ 784 if (argc == 0) { 785 (void) fprintf(stderr, gettext("missing %s argument\n"), 786 zfs_type_to_name(type)); 787 goto badusage; 788 } 789 if (argc > 1) { 790 (void) fprintf(stderr, gettext("too many arguments\n")); 791 goto badusage; 792 } 793 794 if (type == ZFS_TYPE_VOLUME && !noreserve) { 795 zpool_handle_t *zpool_handle; 796 nvlist_t *real_props; 797 uint64_t spa_version; 798 char *p; 799 zfs_prop_t resv_prop; 800 char *strval; 801 char msg[1024]; 802 803 if (p = strchr(argv[0], '/')) 804 *p = '\0'; 805 zpool_handle = zpool_open(g_zfs, argv[0]); 806 if (p != NULL) 807 *p = '/'; 808 if (zpool_handle == NULL) 809 goto error; 810 spa_version = zpool_get_prop_int(zpool_handle, 811 ZPOOL_PROP_VERSION, NULL); 812 if (spa_version >= SPA_VERSION_REFRESERVATION) 813 resv_prop = ZFS_PROP_REFRESERVATION; 814 else 815 resv_prop = ZFS_PROP_RESERVATION; 816 817 (void) snprintf(msg, sizeof (msg), 818 gettext("cannot create '%s'"), argv[0]); 819 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 820 props, 0, NULL, zpool_handle, msg)) == NULL) { 821 zpool_close(zpool_handle); 822 goto error; 823 } 824 zpool_close(zpool_handle); 825 826 volsize = zvol_volsize_to_reservation(volsize, real_props); 827 nvlist_free(real_props); 828 829 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 830 &strval) != 0) { 831 if (nvlist_add_uint64(props, 832 zfs_prop_to_name(resv_prop), volsize) != 0) { 833 nvlist_free(props); 834 nomem(); 835 } 836 } 837 } 838 839 if (parents && zfs_name_valid(argv[0], type)) { 840 /* 841 * Now create the ancestors of target dataset. If the target 842 * already exists and '-p' option was used we should not 843 * complain. 844 */ 845 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 846 ret = 0; 847 goto error; 848 } 849 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 850 goto error; 851 } 852 853 /* pass to libzfs */ 854 if (zfs_create(g_zfs, argv[0], type, props) != 0) 855 goto error; 856 857 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 858 goto error; 859 860 ret = 0; 861 /* 862 * if the user doesn't want the dataset automatically mounted, 863 * then skip the mount/share step 864 */ 865 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 866 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 867 868 /* 869 * Mount and/or share the new filesystem as appropriate. We provide a 870 * verbose error message to let the user know that their filesystem was 871 * in fact created, even if we failed to mount or share it. 872 */ 873 if (canmount == ZFS_CANMOUNT_ON) { 874 if (zfs_mount(zhp, NULL, 0) != 0) { 875 (void) fprintf(stderr, gettext("filesystem " 876 "successfully created, but not mounted\n")); 877 ret = 1; 878 } else if (zfs_share(zhp) != 0) { 879 (void) fprintf(stderr, gettext("filesystem " 880 "successfully created, but not shared\n")); 881 ret = 1; 882 } 883 } 884 885 error: 886 if (zhp) 887 zfs_close(zhp); 888 nvlist_free(props); 889 return (ret); 890 badusage: 891 nvlist_free(props); 892 usage(B_FALSE); 893 return (2); 894 } 895 896 /* 897 * zfs destroy [-rRf] <fs, vol> 898 * zfs destroy [-rRd] <snap> 899 * 900 * -r Recursively destroy all children 901 * -R Recursively destroy all dependents, including clones 902 * -f Force unmounting of any dependents 903 * -d If we can't destroy now, mark for deferred destruction 904 * 905 * Destroys the given dataset. By default, it will unmount any filesystems, 906 * and refuse to destroy a dataset that has any dependents. A dependent can 907 * either be a child, or a clone of a child. 908 */ 909 typedef struct destroy_cbdata { 910 boolean_t cb_first; 911 boolean_t cb_force; 912 boolean_t cb_recurse; 913 boolean_t cb_error; 914 boolean_t cb_doclones; 915 zfs_handle_t *cb_target; 916 boolean_t cb_defer_destroy; 917 boolean_t cb_verbose; 918 boolean_t cb_parsable; 919 boolean_t cb_dryrun; 920 nvlist_t *cb_nvl; 921 nvlist_t *cb_batchedsnaps; 922 923 /* first snap in contiguous run */ 924 char *cb_firstsnap; 925 /* previous snap in contiguous run */ 926 char *cb_prevsnap; 927 int64_t cb_snapused; 928 char *cb_snapspec; 929 char *cb_bookmark; 930 } destroy_cbdata_t; 931 932 /* 933 * Check for any dependents based on the '-r' or '-R' flags. 934 */ 935 static int 936 destroy_check_dependent(zfs_handle_t *zhp, void *data) 937 { 938 destroy_cbdata_t *cbp = data; 939 const char *tname = zfs_get_name(cbp->cb_target); 940 const char *name = zfs_get_name(zhp); 941 942 if (strncmp(tname, name, strlen(tname)) == 0 && 943 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 944 /* 945 * This is a direct descendant, not a clone somewhere else in 946 * the hierarchy. 947 */ 948 if (cbp->cb_recurse) 949 goto out; 950 951 if (cbp->cb_first) { 952 (void) fprintf(stderr, gettext("cannot destroy '%s': " 953 "%s has children\n"), 954 zfs_get_name(cbp->cb_target), 955 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 956 (void) fprintf(stderr, gettext("use '-r' to destroy " 957 "the following datasets:\n")); 958 cbp->cb_first = B_FALSE; 959 cbp->cb_error = B_TRUE; 960 } 961 962 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 963 } else { 964 /* 965 * This is a clone. We only want to report this if the '-r' 966 * wasn't specified, or the target is a snapshot. 967 */ 968 if (!cbp->cb_recurse && 969 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 970 goto out; 971 972 if (cbp->cb_first) { 973 (void) fprintf(stderr, gettext("cannot destroy '%s': " 974 "%s has dependent clones\n"), 975 zfs_get_name(cbp->cb_target), 976 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 977 (void) fprintf(stderr, gettext("use '-R' to destroy " 978 "the following datasets:\n")); 979 cbp->cb_first = B_FALSE; 980 cbp->cb_error = B_TRUE; 981 cbp->cb_dryrun = B_TRUE; 982 } 983 984 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 985 } 986 987 out: 988 zfs_close(zhp); 989 return (0); 990 } 991 992 static int 993 destroy_callback(zfs_handle_t *zhp, void *data) 994 { 995 destroy_cbdata_t *cb = data; 996 const char *name = zfs_get_name(zhp); 997 998 if (cb->cb_verbose) { 999 if (cb->cb_parsable) { 1000 (void) printf("destroy\t%s\n", name); 1001 } else if (cb->cb_dryrun) { 1002 (void) printf(gettext("would destroy %s\n"), 1003 name); 1004 } else { 1005 (void) printf(gettext("will destroy %s\n"), 1006 name); 1007 } 1008 } 1009 1010 /* 1011 * Ignore pools (which we've already flagged as an error before getting 1012 * here). 1013 */ 1014 if (strchr(zfs_get_name(zhp), '/') == NULL && 1015 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1016 zfs_close(zhp); 1017 return (0); 1018 } 1019 if (cb->cb_dryrun) { 1020 zfs_close(zhp); 1021 return (0); 1022 } 1023 1024 /* 1025 * We batch up all contiguous snapshots (even of different 1026 * filesystems) and destroy them with one ioctl. We can't 1027 * simply do all snap deletions and then all fs deletions, 1028 * because we must delete a clone before its origin. 1029 */ 1030 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1031 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1032 } else { 1033 int error = zfs_destroy_snaps_nvl(g_zfs, 1034 cb->cb_batchedsnaps, B_FALSE); 1035 fnvlist_free(cb->cb_batchedsnaps); 1036 cb->cb_batchedsnaps = fnvlist_alloc(); 1037 1038 if (error != 0 || 1039 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1040 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1041 zfs_close(zhp); 1042 return (-1); 1043 } 1044 } 1045 1046 zfs_close(zhp); 1047 return (0); 1048 } 1049 1050 static int 1051 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1052 { 1053 destroy_cbdata_t *cb = arg; 1054 const char *name = zfs_get_name(zhp); 1055 int err = 0; 1056 1057 if (nvlist_exists(cb->cb_nvl, name)) { 1058 if (cb->cb_firstsnap == NULL) 1059 cb->cb_firstsnap = strdup(name); 1060 if (cb->cb_prevsnap != NULL) 1061 free(cb->cb_prevsnap); 1062 /* this snap continues the current range */ 1063 cb->cb_prevsnap = strdup(name); 1064 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1065 nomem(); 1066 if (cb->cb_verbose) { 1067 if (cb->cb_parsable) { 1068 (void) printf("destroy\t%s\n", name); 1069 } else if (cb->cb_dryrun) { 1070 (void) printf(gettext("would destroy %s\n"), 1071 name); 1072 } else { 1073 (void) printf(gettext("will destroy %s\n"), 1074 name); 1075 } 1076 } 1077 } else if (cb->cb_firstsnap != NULL) { 1078 /* end of this range */ 1079 uint64_t used = 0; 1080 err = lzc_snaprange_space(cb->cb_firstsnap, 1081 cb->cb_prevsnap, &used); 1082 cb->cb_snapused += used; 1083 free(cb->cb_firstsnap); 1084 cb->cb_firstsnap = NULL; 1085 free(cb->cb_prevsnap); 1086 cb->cb_prevsnap = NULL; 1087 } 1088 zfs_close(zhp); 1089 return (err); 1090 } 1091 1092 static int 1093 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1094 { 1095 int err = 0; 1096 assert(cb->cb_firstsnap == NULL); 1097 assert(cb->cb_prevsnap == NULL); 1098 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1099 if (cb->cb_firstsnap != NULL) { 1100 uint64_t used = 0; 1101 if (err == 0) { 1102 err = lzc_snaprange_space(cb->cb_firstsnap, 1103 cb->cb_prevsnap, &used); 1104 } 1105 cb->cb_snapused += used; 1106 free(cb->cb_firstsnap); 1107 cb->cb_firstsnap = NULL; 1108 free(cb->cb_prevsnap); 1109 cb->cb_prevsnap = NULL; 1110 } 1111 return (err); 1112 } 1113 1114 static int 1115 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1116 { 1117 destroy_cbdata_t *cb = arg; 1118 int err = 0; 1119 1120 /* Check for clones. */ 1121 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1122 cb->cb_target = zhp; 1123 cb->cb_first = B_TRUE; 1124 err = zfs_iter_dependents(zhp, B_TRUE, 1125 destroy_check_dependent, cb); 1126 } 1127 1128 if (err == 0) { 1129 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1130 nomem(); 1131 } 1132 zfs_close(zhp); 1133 return (err); 1134 } 1135 1136 static int 1137 gather_snapshots(zfs_handle_t *zhp, void *arg) 1138 { 1139 destroy_cbdata_t *cb = arg; 1140 int err = 0; 1141 1142 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1143 if (err == ENOENT) 1144 err = 0; 1145 if (err != 0) 1146 goto out; 1147 1148 if (cb->cb_verbose) { 1149 err = destroy_print_snapshots(zhp, cb); 1150 if (err != 0) 1151 goto out; 1152 } 1153 1154 if (cb->cb_recurse) 1155 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1156 1157 out: 1158 zfs_close(zhp); 1159 return (err); 1160 } 1161 1162 static int 1163 destroy_clones(destroy_cbdata_t *cb) 1164 { 1165 nvpair_t *pair; 1166 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1167 pair != NULL; 1168 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1169 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1170 ZFS_TYPE_SNAPSHOT); 1171 if (zhp != NULL) { 1172 boolean_t defer = cb->cb_defer_destroy; 1173 int err = 0; 1174 1175 /* 1176 * We can't defer destroy non-snapshots, so set it to 1177 * false while destroying the clones. 1178 */ 1179 cb->cb_defer_destroy = B_FALSE; 1180 err = zfs_iter_dependents(zhp, B_FALSE, 1181 destroy_callback, cb); 1182 cb->cb_defer_destroy = defer; 1183 zfs_close(zhp); 1184 if (err != 0) 1185 return (err); 1186 } 1187 } 1188 return (0); 1189 } 1190 1191 static int 1192 zfs_do_destroy(int argc, char **argv) 1193 { 1194 destroy_cbdata_t cb = { 0 }; 1195 int rv = 0; 1196 int err = 0; 1197 int c; 1198 zfs_handle_t *zhp = NULL; 1199 char *at, *pound; 1200 zfs_type_t type = ZFS_TYPE_DATASET; 1201 1202 /* check options */ 1203 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1204 switch (c) { 1205 case 'v': 1206 cb.cb_verbose = B_TRUE; 1207 break; 1208 case 'p': 1209 cb.cb_verbose = B_TRUE; 1210 cb.cb_parsable = B_TRUE; 1211 break; 1212 case 'n': 1213 cb.cb_dryrun = B_TRUE; 1214 break; 1215 case 'd': 1216 cb.cb_defer_destroy = B_TRUE; 1217 type = ZFS_TYPE_SNAPSHOT; 1218 break; 1219 case 'f': 1220 cb.cb_force = B_TRUE; 1221 break; 1222 case 'r': 1223 cb.cb_recurse = B_TRUE; 1224 break; 1225 case 'R': 1226 cb.cb_recurse = B_TRUE; 1227 cb.cb_doclones = B_TRUE; 1228 break; 1229 case '?': 1230 default: 1231 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1232 optopt); 1233 usage(B_FALSE); 1234 } 1235 } 1236 1237 argc -= optind; 1238 argv += optind; 1239 1240 /* check number of arguments */ 1241 if (argc == 0) { 1242 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1243 usage(B_FALSE); 1244 } 1245 if (argc > 1) { 1246 (void) fprintf(stderr, gettext("too many arguments\n")); 1247 usage(B_FALSE); 1248 } 1249 1250 at = strchr(argv[0], '@'); 1251 pound = strchr(argv[0], '#'); 1252 if (at != NULL) { 1253 1254 /* Build the list of snaps to destroy in cb_nvl. */ 1255 cb.cb_nvl = fnvlist_alloc(); 1256 1257 *at = '\0'; 1258 zhp = zfs_open(g_zfs, argv[0], 1259 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1260 if (zhp == NULL) 1261 return (1); 1262 1263 cb.cb_snapspec = at + 1; 1264 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1265 cb.cb_error) { 1266 rv = 1; 1267 goto out; 1268 } 1269 1270 if (nvlist_empty(cb.cb_nvl)) { 1271 (void) fprintf(stderr, gettext("could not find any " 1272 "snapshots to destroy; check snapshot names.\n")); 1273 rv = 1; 1274 goto out; 1275 } 1276 1277 if (cb.cb_verbose) { 1278 char buf[16]; 1279 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1280 if (cb.cb_parsable) { 1281 (void) printf("reclaim\t%llu\n", 1282 cb.cb_snapused); 1283 } else if (cb.cb_dryrun) { 1284 (void) printf(gettext("would reclaim %s\n"), 1285 buf); 1286 } else { 1287 (void) printf(gettext("will reclaim %s\n"), 1288 buf); 1289 } 1290 } 1291 1292 if (!cb.cb_dryrun) { 1293 if (cb.cb_doclones) { 1294 cb.cb_batchedsnaps = fnvlist_alloc(); 1295 err = destroy_clones(&cb); 1296 if (err == 0) { 1297 err = zfs_destroy_snaps_nvl(g_zfs, 1298 cb.cb_batchedsnaps, B_FALSE); 1299 } 1300 if (err != 0) { 1301 rv = 1; 1302 goto out; 1303 } 1304 } 1305 if (err == 0) { 1306 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1307 cb.cb_defer_destroy); 1308 } 1309 } 1310 1311 if (err != 0) 1312 rv = 1; 1313 } else if (pound != NULL) { 1314 int err; 1315 nvlist_t *nvl; 1316 1317 if (cb.cb_dryrun) { 1318 (void) fprintf(stderr, 1319 "dryrun is not supported with bookmark\n"); 1320 return (-1); 1321 } 1322 1323 if (cb.cb_defer_destroy) { 1324 (void) fprintf(stderr, 1325 "defer destroy is not supported with bookmark\n"); 1326 return (-1); 1327 } 1328 1329 if (cb.cb_recurse) { 1330 (void) fprintf(stderr, 1331 "recursive is not supported with bookmark\n"); 1332 return (-1); 1333 } 1334 1335 if (!zfs_bookmark_exists(argv[0])) { 1336 (void) fprintf(stderr, gettext("bookmark '%s' " 1337 "does not exist.\n"), argv[0]); 1338 return (1); 1339 } 1340 1341 nvl = fnvlist_alloc(); 1342 fnvlist_add_boolean(nvl, argv[0]); 1343 1344 err = lzc_destroy_bookmarks(nvl, NULL); 1345 if (err != 0) { 1346 (void) zfs_standard_error(g_zfs, err, 1347 "cannot destroy bookmark"); 1348 } 1349 1350 nvlist_free(cb.cb_nvl); 1351 1352 return (err); 1353 } else { 1354 /* Open the given dataset */ 1355 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1356 return (1); 1357 1358 cb.cb_target = zhp; 1359 1360 /* 1361 * Perform an explicit check for pools before going any further. 1362 */ 1363 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1364 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1365 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1366 "operation does not apply to pools\n"), 1367 zfs_get_name(zhp)); 1368 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1369 "%s' to destroy all datasets in the pool\n"), 1370 zfs_get_name(zhp)); 1371 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1372 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1373 rv = 1; 1374 goto out; 1375 } 1376 1377 /* 1378 * Check for any dependents and/or clones. 1379 */ 1380 cb.cb_first = B_TRUE; 1381 if (!cb.cb_doclones && 1382 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1383 &cb) != 0) { 1384 rv = 1; 1385 goto out; 1386 } 1387 1388 if (cb.cb_error) { 1389 rv = 1; 1390 goto out; 1391 } 1392 1393 cb.cb_batchedsnaps = fnvlist_alloc(); 1394 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1395 &cb) != 0) { 1396 rv = 1; 1397 goto out; 1398 } 1399 1400 /* 1401 * Do the real thing. The callback will close the 1402 * handle regardless of whether it succeeds or not. 1403 */ 1404 err = destroy_callback(zhp, &cb); 1405 zhp = NULL; 1406 if (err == 0) { 1407 err = zfs_destroy_snaps_nvl(g_zfs, 1408 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1409 } 1410 if (err != 0) 1411 rv = 1; 1412 } 1413 1414 out: 1415 fnvlist_free(cb.cb_batchedsnaps); 1416 fnvlist_free(cb.cb_nvl); 1417 if (zhp != NULL) 1418 zfs_close(zhp); 1419 return (rv); 1420 } 1421 1422 static boolean_t 1423 is_recvd_column(zprop_get_cbdata_t *cbp) 1424 { 1425 int i; 1426 zfs_get_column_t col; 1427 1428 for (i = 0; i < ZFS_GET_NCOLS && 1429 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1430 if (col == GET_COL_RECVD) 1431 return (B_TRUE); 1432 return (B_FALSE); 1433 } 1434 1435 /* 1436 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1437 * < all | property[,property]... > < fs | snap | vol > ... 1438 * 1439 * -r recurse over any child datasets 1440 * -H scripted mode. Headers are stripped, and fields are separated 1441 * by tabs instead of spaces. 1442 * -o Set of fields to display. One of "name,property,value, 1443 * received,source". Default is "name,property,value,source". 1444 * "all" is an alias for all five. 1445 * -s Set of sources to allow. One of 1446 * "local,default,inherited,received,temporary,none". Default is 1447 * all six. 1448 * -p Display values in parsable (literal) format. 1449 * 1450 * Prints properties for the given datasets. The user can control which 1451 * columns to display as well as which property types to allow. 1452 */ 1453 1454 /* 1455 * Invoked to display the properties for a single dataset. 1456 */ 1457 static int 1458 get_callback(zfs_handle_t *zhp, void *data) 1459 { 1460 char buf[ZFS_MAXPROPLEN]; 1461 char rbuf[ZFS_MAXPROPLEN]; 1462 zprop_source_t sourcetype; 1463 char source[ZFS_MAXNAMELEN]; 1464 zprop_get_cbdata_t *cbp = data; 1465 nvlist_t *user_props = zfs_get_user_props(zhp); 1466 zprop_list_t *pl = cbp->cb_proplist; 1467 nvlist_t *propval; 1468 char *strval; 1469 char *sourceval; 1470 boolean_t received = is_recvd_column(cbp); 1471 1472 for (; pl != NULL; pl = pl->pl_next) { 1473 char *recvdval = NULL; 1474 /* 1475 * Skip the special fake placeholder. This will also skip over 1476 * the name property when 'all' is specified. 1477 */ 1478 if (pl->pl_prop == ZFS_PROP_NAME && 1479 pl == cbp->cb_proplist) 1480 continue; 1481 1482 if (pl->pl_prop != ZPROP_INVAL) { 1483 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1484 sizeof (buf), &sourcetype, source, 1485 sizeof (source), 1486 cbp->cb_literal) != 0) { 1487 if (pl->pl_all) 1488 continue; 1489 if (!zfs_prop_valid_for_type(pl->pl_prop, 1490 ZFS_TYPE_DATASET)) { 1491 (void) fprintf(stderr, 1492 gettext("No such property '%s'\n"), 1493 zfs_prop_to_name(pl->pl_prop)); 1494 continue; 1495 } 1496 sourcetype = ZPROP_SRC_NONE; 1497 (void) strlcpy(buf, "-", sizeof (buf)); 1498 } 1499 1500 if (received && (zfs_prop_get_recvd(zhp, 1501 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1502 cbp->cb_literal) == 0)) 1503 recvdval = rbuf; 1504 1505 zprop_print_one_property(zfs_get_name(zhp), cbp, 1506 zfs_prop_to_name(pl->pl_prop), 1507 buf, sourcetype, source, recvdval); 1508 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1509 sourcetype = ZPROP_SRC_LOCAL; 1510 1511 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1512 buf, sizeof (buf), cbp->cb_literal) != 0) { 1513 sourcetype = ZPROP_SRC_NONE; 1514 (void) strlcpy(buf, "-", sizeof (buf)); 1515 } 1516 1517 zprop_print_one_property(zfs_get_name(zhp), cbp, 1518 pl->pl_user_prop, buf, sourcetype, source, NULL); 1519 } else if (zfs_prop_written(pl->pl_user_prop)) { 1520 sourcetype = ZPROP_SRC_LOCAL; 1521 1522 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1523 buf, sizeof (buf), cbp->cb_literal) != 0) { 1524 sourcetype = ZPROP_SRC_NONE; 1525 (void) strlcpy(buf, "-", sizeof (buf)); 1526 } 1527 1528 zprop_print_one_property(zfs_get_name(zhp), cbp, 1529 pl->pl_user_prop, buf, sourcetype, source, NULL); 1530 } else { 1531 if (nvlist_lookup_nvlist(user_props, 1532 pl->pl_user_prop, &propval) != 0) { 1533 if (pl->pl_all) 1534 continue; 1535 sourcetype = ZPROP_SRC_NONE; 1536 strval = "-"; 1537 } else { 1538 verify(nvlist_lookup_string(propval, 1539 ZPROP_VALUE, &strval) == 0); 1540 verify(nvlist_lookup_string(propval, 1541 ZPROP_SOURCE, &sourceval) == 0); 1542 1543 if (strcmp(sourceval, 1544 zfs_get_name(zhp)) == 0) { 1545 sourcetype = ZPROP_SRC_LOCAL; 1546 } else if (strcmp(sourceval, 1547 ZPROP_SOURCE_VAL_RECVD) == 0) { 1548 sourcetype = ZPROP_SRC_RECEIVED; 1549 } else { 1550 sourcetype = ZPROP_SRC_INHERITED; 1551 (void) strlcpy(source, 1552 sourceval, sizeof (source)); 1553 } 1554 } 1555 1556 if (received && (zfs_prop_get_recvd(zhp, 1557 pl->pl_user_prop, rbuf, sizeof (rbuf), 1558 cbp->cb_literal) == 0)) 1559 recvdval = rbuf; 1560 1561 zprop_print_one_property(zfs_get_name(zhp), cbp, 1562 pl->pl_user_prop, strval, sourcetype, 1563 source, recvdval); 1564 } 1565 } 1566 1567 return (0); 1568 } 1569 1570 static int 1571 zfs_do_get(int argc, char **argv) 1572 { 1573 zprop_get_cbdata_t cb = { 0 }; 1574 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1575 int types = ZFS_TYPE_DATASET; 1576 char *value, *fields; 1577 int ret = 0; 1578 int limit = 0; 1579 zprop_list_t fake_name = { 0 }; 1580 1581 /* 1582 * Set up default columns and sources. 1583 */ 1584 cb.cb_sources = ZPROP_SRC_ALL; 1585 cb.cb_columns[0] = GET_COL_NAME; 1586 cb.cb_columns[1] = GET_COL_PROPERTY; 1587 cb.cb_columns[2] = GET_COL_VALUE; 1588 cb.cb_columns[3] = GET_COL_SOURCE; 1589 cb.cb_type = ZFS_TYPE_DATASET; 1590 1591 /* check options */ 1592 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1593 switch (c) { 1594 case 'p': 1595 cb.cb_literal = B_TRUE; 1596 break; 1597 case 'd': 1598 limit = parse_depth(optarg, &flags); 1599 break; 1600 case 'r': 1601 flags |= ZFS_ITER_RECURSE; 1602 break; 1603 case 'H': 1604 cb.cb_scripted = B_TRUE; 1605 break; 1606 case ':': 1607 (void) fprintf(stderr, gettext("missing argument for " 1608 "'%c' option\n"), optopt); 1609 usage(B_FALSE); 1610 break; 1611 case 'o': 1612 /* 1613 * Process the set of columns to display. We zero out 1614 * the structure to give us a blank slate. 1615 */ 1616 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1617 i = 0; 1618 while (*optarg != '\0') { 1619 static char *col_subopts[] = 1620 { "name", "property", "value", "received", 1621 "source", "all", NULL }; 1622 1623 if (i == ZFS_GET_NCOLS) { 1624 (void) fprintf(stderr, gettext("too " 1625 "many fields given to -o " 1626 "option\n")); 1627 usage(B_FALSE); 1628 } 1629 1630 switch (getsubopt(&optarg, col_subopts, 1631 &value)) { 1632 case 0: 1633 cb.cb_columns[i++] = GET_COL_NAME; 1634 break; 1635 case 1: 1636 cb.cb_columns[i++] = GET_COL_PROPERTY; 1637 break; 1638 case 2: 1639 cb.cb_columns[i++] = GET_COL_VALUE; 1640 break; 1641 case 3: 1642 cb.cb_columns[i++] = GET_COL_RECVD; 1643 flags |= ZFS_ITER_RECVD_PROPS; 1644 break; 1645 case 4: 1646 cb.cb_columns[i++] = GET_COL_SOURCE; 1647 break; 1648 case 5: 1649 if (i > 0) { 1650 (void) fprintf(stderr, 1651 gettext("\"all\" conflicts " 1652 "with specific fields " 1653 "given to -o option\n")); 1654 usage(B_FALSE); 1655 } 1656 cb.cb_columns[0] = GET_COL_NAME; 1657 cb.cb_columns[1] = GET_COL_PROPERTY; 1658 cb.cb_columns[2] = GET_COL_VALUE; 1659 cb.cb_columns[3] = GET_COL_RECVD; 1660 cb.cb_columns[4] = GET_COL_SOURCE; 1661 flags |= ZFS_ITER_RECVD_PROPS; 1662 i = ZFS_GET_NCOLS; 1663 break; 1664 default: 1665 (void) fprintf(stderr, 1666 gettext("invalid column name " 1667 "'%s'\n"), value); 1668 usage(B_FALSE); 1669 } 1670 } 1671 break; 1672 1673 case 's': 1674 cb.cb_sources = 0; 1675 while (*optarg != '\0') { 1676 static char *source_subopts[] = { 1677 "local", "default", "inherited", 1678 "received", "temporary", "none", 1679 NULL }; 1680 1681 switch (getsubopt(&optarg, source_subopts, 1682 &value)) { 1683 case 0: 1684 cb.cb_sources |= ZPROP_SRC_LOCAL; 1685 break; 1686 case 1: 1687 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1688 break; 1689 case 2: 1690 cb.cb_sources |= ZPROP_SRC_INHERITED; 1691 break; 1692 case 3: 1693 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1694 break; 1695 case 4: 1696 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1697 break; 1698 case 5: 1699 cb.cb_sources |= ZPROP_SRC_NONE; 1700 break; 1701 default: 1702 (void) fprintf(stderr, 1703 gettext("invalid source " 1704 "'%s'\n"), value); 1705 usage(B_FALSE); 1706 } 1707 } 1708 break; 1709 1710 case 't': 1711 types = 0; 1712 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1713 while (*optarg != '\0') { 1714 static char *type_subopts[] = { "filesystem", 1715 "volume", "snapshot", "bookmark", 1716 "all", NULL }; 1717 1718 switch (getsubopt(&optarg, type_subopts, 1719 &value)) { 1720 case 0: 1721 types |= ZFS_TYPE_FILESYSTEM; 1722 break; 1723 case 1: 1724 types |= ZFS_TYPE_VOLUME; 1725 break; 1726 case 2: 1727 types |= ZFS_TYPE_SNAPSHOT; 1728 break; 1729 case 3: 1730 types |= ZFS_TYPE_BOOKMARK; 1731 break; 1732 case 4: 1733 types = ZFS_TYPE_DATASET | 1734 ZFS_TYPE_BOOKMARK; 1735 break; 1736 1737 default: 1738 (void) fprintf(stderr, 1739 gettext("invalid type '%s'\n"), 1740 value); 1741 usage(B_FALSE); 1742 } 1743 } 1744 break; 1745 1746 case '?': 1747 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1748 optopt); 1749 usage(B_FALSE); 1750 } 1751 } 1752 1753 argc -= optind; 1754 argv += optind; 1755 1756 if (argc < 1) { 1757 (void) fprintf(stderr, gettext("missing property " 1758 "argument\n")); 1759 usage(B_FALSE); 1760 } 1761 1762 fields = argv[0]; 1763 1764 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1765 != 0) 1766 usage(B_FALSE); 1767 1768 argc--; 1769 argv++; 1770 1771 /* 1772 * As part of zfs_expand_proplist(), we keep track of the maximum column 1773 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1774 * need to know the maximum name length. However, the user likely did 1775 * not specify 'name' as one of the properties to fetch, so we need to 1776 * make sure we always include at least this property for 1777 * print_get_headers() to work properly. 1778 */ 1779 if (cb.cb_proplist != NULL) { 1780 fake_name.pl_prop = ZFS_PROP_NAME; 1781 fake_name.pl_width = strlen(gettext("NAME")); 1782 fake_name.pl_next = cb.cb_proplist; 1783 cb.cb_proplist = &fake_name; 1784 } 1785 1786 cb.cb_first = B_TRUE; 1787 1788 /* run for each object */ 1789 ret = zfs_for_each(argc, argv, flags, types, NULL, 1790 &cb.cb_proplist, limit, get_callback, &cb); 1791 1792 if (cb.cb_proplist == &fake_name) 1793 zprop_free_list(fake_name.pl_next); 1794 else 1795 zprop_free_list(cb.cb_proplist); 1796 1797 return (ret); 1798 } 1799 1800 /* 1801 * inherit [-rS] <property> <fs|vol> ... 1802 * 1803 * -r Recurse over all children 1804 * -S Revert to received value, if any 1805 * 1806 * For each dataset specified on the command line, inherit the given property 1807 * from its parent. Inheriting a property at the pool level will cause it to 1808 * use the default value. The '-r' flag will recurse over all children, and is 1809 * useful for setting a property on a hierarchy-wide basis, regardless of any 1810 * local modifications for each dataset. 1811 */ 1812 1813 typedef struct inherit_cbdata { 1814 const char *cb_propname; 1815 boolean_t cb_received; 1816 } inherit_cbdata_t; 1817 1818 static int 1819 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1820 { 1821 inherit_cbdata_t *cb = data; 1822 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1823 1824 /* 1825 * If we're doing it recursively, then ignore properties that 1826 * are not valid for this type of dataset. 1827 */ 1828 if (prop != ZPROP_INVAL && 1829 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1830 return (0); 1831 1832 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1833 } 1834 1835 static int 1836 inherit_cb(zfs_handle_t *zhp, void *data) 1837 { 1838 inherit_cbdata_t *cb = data; 1839 1840 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1841 } 1842 1843 static int 1844 zfs_do_inherit(int argc, char **argv) 1845 { 1846 int c; 1847 zfs_prop_t prop; 1848 inherit_cbdata_t cb = { 0 }; 1849 char *propname; 1850 int ret = 0; 1851 int flags = 0; 1852 boolean_t received = B_FALSE; 1853 1854 /* check options */ 1855 while ((c = getopt(argc, argv, "rS")) != -1) { 1856 switch (c) { 1857 case 'r': 1858 flags |= ZFS_ITER_RECURSE; 1859 break; 1860 case 'S': 1861 received = B_TRUE; 1862 break; 1863 case '?': 1864 default: 1865 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1866 optopt); 1867 usage(B_FALSE); 1868 } 1869 } 1870 1871 argc -= optind; 1872 argv += optind; 1873 1874 /* check number of arguments */ 1875 if (argc < 1) { 1876 (void) fprintf(stderr, gettext("missing property argument\n")); 1877 usage(B_FALSE); 1878 } 1879 if (argc < 2) { 1880 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1881 usage(B_FALSE); 1882 } 1883 1884 propname = argv[0]; 1885 argc--; 1886 argv++; 1887 1888 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1889 if (zfs_prop_readonly(prop)) { 1890 (void) fprintf(stderr, gettext( 1891 "%s property is read-only\n"), 1892 propname); 1893 return (1); 1894 } 1895 if (!zfs_prop_inheritable(prop) && !received) { 1896 (void) fprintf(stderr, gettext("'%s' property cannot " 1897 "be inherited\n"), propname); 1898 if (prop == ZFS_PROP_QUOTA || 1899 prop == ZFS_PROP_RESERVATION || 1900 prop == ZFS_PROP_REFQUOTA || 1901 prop == ZFS_PROP_REFRESERVATION) { 1902 (void) fprintf(stderr, gettext("use 'zfs set " 1903 "%s=none' to clear\n"), propname); 1904 (void) fprintf(stderr, gettext("use 'zfs " 1905 "inherit -S %s' to revert to received " 1906 "value\n"), propname); 1907 } 1908 return (1); 1909 } 1910 if (received && (prop == ZFS_PROP_VOLSIZE || 1911 prop == ZFS_PROP_VERSION)) { 1912 (void) fprintf(stderr, gettext("'%s' property cannot " 1913 "be reverted to a received value\n"), propname); 1914 return (1); 1915 } 1916 } else if (!zfs_prop_user(propname)) { 1917 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1918 propname); 1919 usage(B_FALSE); 1920 } 1921 1922 cb.cb_propname = propname; 1923 cb.cb_received = received; 1924 1925 if (flags & ZFS_ITER_RECURSE) { 1926 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1927 NULL, NULL, 0, inherit_recurse_cb, &cb); 1928 } else { 1929 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1930 NULL, NULL, 0, inherit_cb, &cb); 1931 } 1932 1933 return (ret); 1934 } 1935 1936 typedef struct upgrade_cbdata { 1937 uint64_t cb_numupgraded; 1938 uint64_t cb_numsamegraded; 1939 uint64_t cb_numfailed; 1940 uint64_t cb_version; 1941 boolean_t cb_newer; 1942 boolean_t cb_foundone; 1943 char cb_lastfs[ZFS_MAXNAMELEN]; 1944 } upgrade_cbdata_t; 1945 1946 static int 1947 same_pool(zfs_handle_t *zhp, const char *name) 1948 { 1949 int len1 = strcspn(name, "/@"); 1950 const char *zhname = zfs_get_name(zhp); 1951 int len2 = strcspn(zhname, "/@"); 1952 1953 if (len1 != len2) 1954 return (B_FALSE); 1955 return (strncmp(name, zhname, len1) == 0); 1956 } 1957 1958 static int 1959 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1960 { 1961 upgrade_cbdata_t *cb = data; 1962 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1963 1964 /* list if it's old/new */ 1965 if ((!cb->cb_newer && version < ZPL_VERSION) || 1966 (cb->cb_newer && version > ZPL_VERSION)) { 1967 char *str; 1968 if (cb->cb_newer) { 1969 str = gettext("The following filesystems are " 1970 "formatted using a newer software version and\n" 1971 "cannot be accessed on the current system.\n\n"); 1972 } else { 1973 str = gettext("The following filesystems are " 1974 "out of date, and can be upgraded. After being\n" 1975 "upgraded, these filesystems (and any 'zfs send' " 1976 "streams generated from\n" 1977 "subsequent snapshots) will no longer be " 1978 "accessible by older software versions.\n\n"); 1979 } 1980 1981 if (!cb->cb_foundone) { 1982 (void) puts(str); 1983 (void) printf(gettext("VER FILESYSTEM\n")); 1984 (void) printf(gettext("--- ------------\n")); 1985 cb->cb_foundone = B_TRUE; 1986 } 1987 1988 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1989 } 1990 1991 return (0); 1992 } 1993 1994 static int 1995 upgrade_set_callback(zfs_handle_t *zhp, void *data) 1996 { 1997 upgrade_cbdata_t *cb = data; 1998 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1999 int needed_spa_version; 2000 int spa_version; 2001 2002 if (zfs_spa_version(zhp, &spa_version) < 0) 2003 return (-1); 2004 2005 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2006 2007 if (needed_spa_version < 0) 2008 return (-1); 2009 2010 if (spa_version < needed_spa_version) { 2011 /* can't upgrade */ 2012 (void) printf(gettext("%s: can not be " 2013 "upgraded; the pool version needs to first " 2014 "be upgraded\nto version %d\n\n"), 2015 zfs_get_name(zhp), needed_spa_version); 2016 cb->cb_numfailed++; 2017 return (0); 2018 } 2019 2020 /* upgrade */ 2021 if (version < cb->cb_version) { 2022 char verstr[16]; 2023 (void) snprintf(verstr, sizeof (verstr), 2024 "%llu", cb->cb_version); 2025 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2026 /* 2027 * If they did "zfs upgrade -a", then we could 2028 * be doing ioctls to different pools. We need 2029 * to log this history once to each pool, and bypass 2030 * the normal history logging that happens in main(). 2031 */ 2032 (void) zpool_log_history(g_zfs, history_str); 2033 log_history = B_FALSE; 2034 } 2035 if (zfs_prop_set(zhp, "version", verstr) == 0) 2036 cb->cb_numupgraded++; 2037 else 2038 cb->cb_numfailed++; 2039 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2040 } else if (version > cb->cb_version) { 2041 /* can't downgrade */ 2042 (void) printf(gettext("%s: can not be downgraded; " 2043 "it is already at version %u\n"), 2044 zfs_get_name(zhp), version); 2045 cb->cb_numfailed++; 2046 } else { 2047 cb->cb_numsamegraded++; 2048 } 2049 return (0); 2050 } 2051 2052 /* 2053 * zfs upgrade 2054 * zfs upgrade -v 2055 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2056 */ 2057 static int 2058 zfs_do_upgrade(int argc, char **argv) 2059 { 2060 boolean_t all = B_FALSE; 2061 boolean_t showversions = B_FALSE; 2062 int ret = 0; 2063 upgrade_cbdata_t cb = { 0 }; 2064 char c; 2065 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2066 2067 /* check options */ 2068 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2069 switch (c) { 2070 case 'r': 2071 flags |= ZFS_ITER_RECURSE; 2072 break; 2073 case 'v': 2074 showversions = B_TRUE; 2075 break; 2076 case 'V': 2077 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2078 optarg, &cb.cb_version) != 0) { 2079 (void) fprintf(stderr, 2080 gettext("invalid version %s\n"), optarg); 2081 usage(B_FALSE); 2082 } 2083 break; 2084 case 'a': 2085 all = B_TRUE; 2086 break; 2087 case '?': 2088 default: 2089 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2090 optopt); 2091 usage(B_FALSE); 2092 } 2093 } 2094 2095 argc -= optind; 2096 argv += optind; 2097 2098 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2099 usage(B_FALSE); 2100 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2101 cb.cb_version || argc)) 2102 usage(B_FALSE); 2103 if ((all || argc) && (showversions)) 2104 usage(B_FALSE); 2105 if (all && argc) 2106 usage(B_FALSE); 2107 2108 if (showversions) { 2109 /* Show info on available versions. */ 2110 (void) printf(gettext("The following filesystem versions are " 2111 "supported:\n\n")); 2112 (void) printf(gettext("VER DESCRIPTION\n")); 2113 (void) printf("--- -----------------------------------------" 2114 "---------------\n"); 2115 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2116 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2117 (void) printf(gettext(" 3 Case insensitive and filesystem " 2118 "user identifier (FUID)\n")); 2119 (void) printf(gettext(" 4 userquota, groupquota " 2120 "properties\n")); 2121 (void) printf(gettext(" 5 System attributes\n")); 2122 (void) printf(gettext("\nFor more information on a particular " 2123 "version, including supported releases,\n")); 2124 (void) printf("see the ZFS Administration Guide.\n\n"); 2125 ret = 0; 2126 } else if (argc || all) { 2127 /* Upgrade filesystems */ 2128 if (cb.cb_version == 0) 2129 cb.cb_version = ZPL_VERSION; 2130 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2131 NULL, NULL, 0, upgrade_set_callback, &cb); 2132 (void) printf(gettext("%llu filesystems upgraded\n"), 2133 cb.cb_numupgraded); 2134 if (cb.cb_numsamegraded) { 2135 (void) printf(gettext("%llu filesystems already at " 2136 "this version\n"), 2137 cb.cb_numsamegraded); 2138 } 2139 if (cb.cb_numfailed != 0) 2140 ret = 1; 2141 } else { 2142 /* List old-version filesytems */ 2143 boolean_t found; 2144 (void) printf(gettext("This system is currently running " 2145 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2146 2147 flags |= ZFS_ITER_RECURSE; 2148 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2149 NULL, NULL, 0, upgrade_list_callback, &cb); 2150 2151 found = cb.cb_foundone; 2152 cb.cb_foundone = B_FALSE; 2153 cb.cb_newer = B_TRUE; 2154 2155 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2156 NULL, NULL, 0, upgrade_list_callback, &cb); 2157 2158 if (!cb.cb_foundone && !found) { 2159 (void) printf(gettext("All filesystems are " 2160 "formatted with the current version.\n")); 2161 } 2162 } 2163 2164 return (ret); 2165 } 2166 2167 /* 2168 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2169 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2170 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2171 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2172 * 2173 * -H Scripted mode; elide headers and separate columns by tabs. 2174 * -i Translate SID to POSIX ID. 2175 * -n Print numeric ID instead of user/group name. 2176 * -o Control which fields to display. 2177 * -p Use exact (parsable) numeric output. 2178 * -s Specify sort columns, descending order. 2179 * -S Specify sort columns, ascending order. 2180 * -t Control which object types to display. 2181 * 2182 * Displays space consumed by, and quotas on, each user in the specified 2183 * filesystem or snapshot. 2184 */ 2185 2186 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2187 enum us_field_types { 2188 USFIELD_TYPE, 2189 USFIELD_NAME, 2190 USFIELD_USED, 2191 USFIELD_QUOTA 2192 }; 2193 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2194 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2195 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2196 2197 #define USTYPE_PSX_GRP (1 << 0) 2198 #define USTYPE_PSX_USR (1 << 1) 2199 #define USTYPE_SMB_GRP (1 << 2) 2200 #define USTYPE_SMB_USR (1 << 3) 2201 #define USTYPE_ALL \ 2202 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2203 2204 static int us_type_bits[] = { 2205 USTYPE_PSX_GRP, 2206 USTYPE_PSX_USR, 2207 USTYPE_SMB_GRP, 2208 USTYPE_SMB_USR, 2209 USTYPE_ALL 2210 }; 2211 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2212 "smbuser", "all" }; 2213 2214 typedef struct us_node { 2215 nvlist_t *usn_nvl; 2216 uu_avl_node_t usn_avlnode; 2217 uu_list_node_t usn_listnode; 2218 } us_node_t; 2219 2220 typedef struct us_cbdata { 2221 nvlist_t **cb_nvlp; 2222 uu_avl_pool_t *cb_avl_pool; 2223 uu_avl_t *cb_avl; 2224 boolean_t cb_numname; 2225 boolean_t cb_nicenum; 2226 boolean_t cb_sid2posix; 2227 zfs_userquota_prop_t cb_prop; 2228 zfs_sort_column_t *cb_sortcol; 2229 size_t cb_width[USFIELD_LAST]; 2230 } us_cbdata_t; 2231 2232 static boolean_t us_populated = B_FALSE; 2233 2234 typedef struct { 2235 zfs_sort_column_t *si_sortcol; 2236 boolean_t si_numname; 2237 } us_sort_info_t; 2238 2239 static int 2240 us_field_index(char *field) 2241 { 2242 int i; 2243 2244 for (i = 0; i < USFIELD_LAST; i++) { 2245 if (strcmp(field, us_field_names[i]) == 0) 2246 return (i); 2247 } 2248 2249 return (-1); 2250 } 2251 2252 static int 2253 us_compare(const void *larg, const void *rarg, void *unused) 2254 { 2255 const us_node_t *l = larg; 2256 const us_node_t *r = rarg; 2257 us_sort_info_t *si = (us_sort_info_t *)unused; 2258 zfs_sort_column_t *sortcol = si->si_sortcol; 2259 boolean_t numname = si->si_numname; 2260 nvlist_t *lnvl = l->usn_nvl; 2261 nvlist_t *rnvl = r->usn_nvl; 2262 int rc = 0; 2263 boolean_t lvb, rvb; 2264 2265 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2266 char *lvstr = ""; 2267 char *rvstr = ""; 2268 uint32_t lv32 = 0; 2269 uint32_t rv32 = 0; 2270 uint64_t lv64 = 0; 2271 uint64_t rv64 = 0; 2272 zfs_prop_t prop = sortcol->sc_prop; 2273 const char *propname = NULL; 2274 boolean_t reverse = sortcol->sc_reverse; 2275 2276 switch (prop) { 2277 case ZFS_PROP_TYPE: 2278 propname = "type"; 2279 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2280 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2281 if (rv32 != lv32) 2282 rc = (rv32 < lv32) ? 1 : -1; 2283 break; 2284 case ZFS_PROP_NAME: 2285 propname = "name"; 2286 if (numname) { 2287 (void) nvlist_lookup_uint64(lnvl, propname, 2288 &lv64); 2289 (void) nvlist_lookup_uint64(rnvl, propname, 2290 &rv64); 2291 if (rv64 != lv64) 2292 rc = (rv64 < lv64) ? 1 : -1; 2293 } else { 2294 (void) nvlist_lookup_string(lnvl, propname, 2295 &lvstr); 2296 (void) nvlist_lookup_string(rnvl, propname, 2297 &rvstr); 2298 rc = strcmp(lvstr, rvstr); 2299 } 2300 break; 2301 case ZFS_PROP_USED: 2302 case ZFS_PROP_QUOTA: 2303 if (!us_populated) 2304 break; 2305 if (prop == ZFS_PROP_USED) 2306 propname = "used"; 2307 else 2308 propname = "quota"; 2309 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2310 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2311 if (rv64 != lv64) 2312 rc = (rv64 < lv64) ? 1 : -1; 2313 break; 2314 } 2315 2316 if (rc != 0) { 2317 if (rc < 0) 2318 return (reverse ? 1 : -1); 2319 else 2320 return (reverse ? -1 : 1); 2321 } 2322 } 2323 2324 /* 2325 * If entries still seem to be the same, check if they are of the same 2326 * type (smbentity is added only if we are doing SID to POSIX ID 2327 * translation where we can have duplicate type/name combinations). 2328 */ 2329 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2330 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2331 lvb != rvb) 2332 return (lvb < rvb ? -1 : 1); 2333 2334 return (0); 2335 } 2336 2337 static inline const char * 2338 us_type2str(unsigned field_type) 2339 { 2340 switch (field_type) { 2341 case USTYPE_PSX_USR: 2342 return ("POSIX User"); 2343 case USTYPE_PSX_GRP: 2344 return ("POSIX Group"); 2345 case USTYPE_SMB_USR: 2346 return ("SMB User"); 2347 case USTYPE_SMB_GRP: 2348 return ("SMB Group"); 2349 default: 2350 return ("Undefined"); 2351 } 2352 } 2353 2354 static int 2355 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2356 { 2357 us_cbdata_t *cb = (us_cbdata_t *)arg; 2358 zfs_userquota_prop_t prop = cb->cb_prop; 2359 char *name = NULL; 2360 char *propname; 2361 char sizebuf[32]; 2362 us_node_t *node; 2363 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2364 uu_avl_t *avl = cb->cb_avl; 2365 uu_avl_index_t idx; 2366 nvlist_t *props; 2367 us_node_t *n; 2368 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2369 unsigned type; 2370 const char *typestr; 2371 size_t namelen; 2372 size_t typelen; 2373 size_t sizelen; 2374 int typeidx, nameidx, sizeidx; 2375 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2376 boolean_t smbentity = B_FALSE; 2377 2378 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2379 nomem(); 2380 node = safe_malloc(sizeof (us_node_t)); 2381 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2382 node->usn_nvl = props; 2383 2384 if (domain != NULL && domain[0] != '\0') { 2385 /* SMB */ 2386 char sid[ZFS_MAXNAMELEN + 32]; 2387 uid_t id; 2388 int err; 2389 int flag = IDMAP_REQ_FLG_USE_CACHE; 2390 2391 smbentity = B_TRUE; 2392 2393 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2394 2395 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2396 type = USTYPE_SMB_GRP; 2397 err = sid_to_id(sid, B_FALSE, &id); 2398 } else { 2399 type = USTYPE_SMB_USR; 2400 err = sid_to_id(sid, B_TRUE, &id); 2401 } 2402 2403 if (err == 0) { 2404 rid = id; 2405 if (!cb->cb_sid2posix) { 2406 if (type == USTYPE_SMB_USR) { 2407 (void) idmap_getwinnamebyuid(rid, flag, 2408 &name, NULL); 2409 } else { 2410 (void) idmap_getwinnamebygid(rid, flag, 2411 &name, NULL); 2412 } 2413 if (name == NULL) 2414 name = sid; 2415 } 2416 } 2417 } 2418 2419 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2420 /* POSIX or -i */ 2421 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2422 type = USTYPE_PSX_GRP; 2423 if (!cb->cb_numname) { 2424 struct group *g; 2425 2426 if ((g = getgrgid(rid)) != NULL) 2427 name = g->gr_name; 2428 } 2429 } else { 2430 type = USTYPE_PSX_USR; 2431 if (!cb->cb_numname) { 2432 struct passwd *p; 2433 2434 if ((p = getpwuid(rid)) != NULL) 2435 name = p->pw_name; 2436 } 2437 } 2438 } 2439 2440 /* 2441 * Make sure that the type/name combination is unique when doing 2442 * SID to POSIX ID translation (hence changing the type from SMB to 2443 * POSIX). 2444 */ 2445 if (cb->cb_sid2posix && 2446 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2447 nomem(); 2448 2449 /* Calculate/update width of TYPE field */ 2450 typestr = us_type2str(type); 2451 typelen = strlen(gettext(typestr)); 2452 typeidx = us_field_index("type"); 2453 if (typelen > cb->cb_width[typeidx]) 2454 cb->cb_width[typeidx] = typelen; 2455 if (nvlist_add_uint32(props, "type", type) != 0) 2456 nomem(); 2457 2458 /* Calculate/update width of NAME field */ 2459 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2460 if (nvlist_add_uint64(props, "name", rid) != 0) 2461 nomem(); 2462 namelen = snprintf(NULL, 0, "%u", rid); 2463 } else { 2464 if (nvlist_add_string(props, "name", name) != 0) 2465 nomem(); 2466 namelen = strlen(name); 2467 } 2468 nameidx = us_field_index("name"); 2469 if (namelen > cb->cb_width[nameidx]) 2470 cb->cb_width[nameidx] = namelen; 2471 2472 /* 2473 * Check if this type/name combination is in the list and update it; 2474 * otherwise add new node to the list. 2475 */ 2476 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2477 uu_avl_insert(avl, node, idx); 2478 } else { 2479 nvlist_free(props); 2480 free(node); 2481 node = n; 2482 props = node->usn_nvl; 2483 } 2484 2485 /* Calculate/update width of USED/QUOTA fields */ 2486 if (cb->cb_nicenum) 2487 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2488 else 2489 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2490 sizelen = strlen(sizebuf); 2491 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2492 propname = "used"; 2493 if (!nvlist_exists(props, "quota")) 2494 (void) nvlist_add_uint64(props, "quota", 0); 2495 } else { 2496 propname = "quota"; 2497 if (!nvlist_exists(props, "used")) 2498 (void) nvlist_add_uint64(props, "used", 0); 2499 } 2500 sizeidx = us_field_index(propname); 2501 if (sizelen > cb->cb_width[sizeidx]) 2502 cb->cb_width[sizeidx] = sizelen; 2503 2504 if (nvlist_add_uint64(props, propname, space) != 0) 2505 nomem(); 2506 2507 return (0); 2508 } 2509 2510 static void 2511 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2512 size_t *width, us_node_t *node) 2513 { 2514 nvlist_t *nvl = node->usn_nvl; 2515 char valstr[ZFS_MAXNAMELEN]; 2516 boolean_t first = B_TRUE; 2517 int cfield = 0; 2518 int field; 2519 uint32_t ustype; 2520 2521 /* Check type */ 2522 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2523 if (!(ustype & types)) 2524 return; 2525 2526 while ((field = fields[cfield]) != USFIELD_LAST) { 2527 nvpair_t *nvp = NULL; 2528 data_type_t type; 2529 uint32_t val32; 2530 uint64_t val64; 2531 char *strval = NULL; 2532 2533 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2534 if (strcmp(nvpair_name(nvp), 2535 us_field_names[field]) == 0) 2536 break; 2537 } 2538 2539 type = nvpair_type(nvp); 2540 switch (type) { 2541 case DATA_TYPE_UINT32: 2542 (void) nvpair_value_uint32(nvp, &val32); 2543 break; 2544 case DATA_TYPE_UINT64: 2545 (void) nvpair_value_uint64(nvp, &val64); 2546 break; 2547 case DATA_TYPE_STRING: 2548 (void) nvpair_value_string(nvp, &strval); 2549 break; 2550 default: 2551 (void) fprintf(stderr, "invalid data type\n"); 2552 } 2553 2554 switch (field) { 2555 case USFIELD_TYPE: 2556 strval = (char *)us_type2str(val32); 2557 break; 2558 case USFIELD_NAME: 2559 if (type == DATA_TYPE_UINT64) { 2560 (void) sprintf(valstr, "%llu", val64); 2561 strval = valstr; 2562 } 2563 break; 2564 case USFIELD_USED: 2565 case USFIELD_QUOTA: 2566 if (type == DATA_TYPE_UINT64) { 2567 if (parsable) { 2568 (void) sprintf(valstr, "%llu", val64); 2569 } else { 2570 zfs_nicenum(val64, valstr, 2571 sizeof (valstr)); 2572 } 2573 if (field == USFIELD_QUOTA && 2574 strcmp(valstr, "0") == 0) 2575 strval = "none"; 2576 else 2577 strval = valstr; 2578 } 2579 break; 2580 } 2581 2582 if (!first) { 2583 if (scripted) 2584 (void) printf("\t"); 2585 else 2586 (void) printf(" "); 2587 } 2588 if (scripted) 2589 (void) printf("%s", strval); 2590 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2591 (void) printf("%-*s", width[field], strval); 2592 else 2593 (void) printf("%*s", width[field], strval); 2594 2595 first = B_FALSE; 2596 cfield++; 2597 } 2598 2599 (void) printf("\n"); 2600 } 2601 2602 static void 2603 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2604 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2605 { 2606 us_node_t *node; 2607 const char *col; 2608 int cfield = 0; 2609 int field; 2610 2611 if (!scripted) { 2612 boolean_t first = B_TRUE; 2613 2614 while ((field = fields[cfield]) != USFIELD_LAST) { 2615 col = gettext(us_field_hdr[field]); 2616 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2617 (void) printf(first ? "%-*s" : " %-*s", 2618 width[field], col); 2619 } else { 2620 (void) printf(first ? "%*s" : " %*s", 2621 width[field], col); 2622 } 2623 first = B_FALSE; 2624 cfield++; 2625 } 2626 (void) printf("\n"); 2627 } 2628 2629 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2630 print_us_node(scripted, parsable, fields, types, width, node); 2631 if (rmnode) 2632 nvlist_free(node->usn_nvl); 2633 } 2634 } 2635 2636 static int 2637 zfs_do_userspace(int argc, char **argv) 2638 { 2639 zfs_handle_t *zhp; 2640 zfs_userquota_prop_t p; 2641 uu_avl_pool_t *avl_pool; 2642 uu_avl_t *avl_tree; 2643 uu_avl_walk_t *walk; 2644 char *delim; 2645 char deffields[] = "type,name,used,quota"; 2646 char *ofield = NULL; 2647 char *tfield = NULL; 2648 int cfield = 0; 2649 int fields[256]; 2650 int i; 2651 boolean_t scripted = B_FALSE; 2652 boolean_t prtnum = B_FALSE; 2653 boolean_t parsable = B_FALSE; 2654 boolean_t sid2posix = B_FALSE; 2655 int ret = 0; 2656 int c; 2657 zfs_sort_column_t *sortcol = NULL; 2658 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2659 us_cbdata_t cb; 2660 us_node_t *node; 2661 us_node_t *rmnode; 2662 uu_list_pool_t *listpool; 2663 uu_list_t *list; 2664 uu_avl_index_t idx = 0; 2665 uu_list_index_t idx2 = 0; 2666 2667 if (argc < 2) 2668 usage(B_FALSE); 2669 2670 if (strcmp(argv[0], "groupspace") == 0) 2671 /* Toggle default group types */ 2672 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2673 2674 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2675 switch (c) { 2676 case 'n': 2677 prtnum = B_TRUE; 2678 break; 2679 case 'H': 2680 scripted = B_TRUE; 2681 break; 2682 case 'p': 2683 parsable = B_TRUE; 2684 break; 2685 case 'o': 2686 ofield = optarg; 2687 break; 2688 case 's': 2689 case 'S': 2690 if (zfs_add_sort_column(&sortcol, optarg, 2691 c == 's' ? B_FALSE : B_TRUE) != 0) { 2692 (void) fprintf(stderr, 2693 gettext("invalid field '%s'\n"), optarg); 2694 usage(B_FALSE); 2695 } 2696 break; 2697 case 't': 2698 tfield = optarg; 2699 break; 2700 case 'i': 2701 sid2posix = B_TRUE; 2702 break; 2703 case ':': 2704 (void) fprintf(stderr, gettext("missing argument for " 2705 "'%c' option\n"), optopt); 2706 usage(B_FALSE); 2707 break; 2708 case '?': 2709 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2710 optopt); 2711 usage(B_FALSE); 2712 } 2713 } 2714 2715 argc -= optind; 2716 argv += optind; 2717 2718 if (argc < 1) { 2719 (void) fprintf(stderr, gettext("missing dataset name\n")); 2720 usage(B_FALSE); 2721 } 2722 if (argc > 1) { 2723 (void) fprintf(stderr, gettext("too many arguments\n")); 2724 usage(B_FALSE); 2725 } 2726 2727 /* Use default output fields if not specified using -o */ 2728 if (ofield == NULL) 2729 ofield = deffields; 2730 do { 2731 if ((delim = strchr(ofield, ',')) != NULL) 2732 *delim = '\0'; 2733 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2734 (void) fprintf(stderr, gettext("invalid type '%s' " 2735 "for -o option\n"), ofield); 2736 return (-1); 2737 } 2738 if (delim != NULL) 2739 ofield = delim + 1; 2740 } while (delim != NULL); 2741 fields[cfield] = USFIELD_LAST; 2742 2743 /* Override output types (-t option) */ 2744 if (tfield != NULL) { 2745 types = 0; 2746 2747 do { 2748 boolean_t found = B_FALSE; 2749 2750 if ((delim = strchr(tfield, ',')) != NULL) 2751 *delim = '\0'; 2752 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2753 i++) { 2754 if (strcmp(tfield, us_type_names[i]) == 0) { 2755 found = B_TRUE; 2756 types |= us_type_bits[i]; 2757 break; 2758 } 2759 } 2760 if (!found) { 2761 (void) fprintf(stderr, gettext("invalid type " 2762 "'%s' for -t option\n"), tfield); 2763 return (-1); 2764 } 2765 if (delim != NULL) 2766 tfield = delim + 1; 2767 } while (delim != NULL); 2768 } 2769 2770 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2771 return (1); 2772 2773 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2774 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2775 nomem(); 2776 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2777 nomem(); 2778 2779 /* Always add default sorting columns */ 2780 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2781 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2782 2783 cb.cb_sortcol = sortcol; 2784 cb.cb_numname = prtnum; 2785 cb.cb_nicenum = !parsable; 2786 cb.cb_avl_pool = avl_pool; 2787 cb.cb_avl = avl_tree; 2788 cb.cb_sid2posix = sid2posix; 2789 2790 for (i = 0; i < USFIELD_LAST; i++) 2791 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2792 2793 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2794 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2795 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2796 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2797 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2798 continue; 2799 cb.cb_prop = p; 2800 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2801 return (ret); 2802 } 2803 2804 /* Sort the list */ 2805 if ((node = uu_avl_first(avl_tree)) == NULL) 2806 return (0); 2807 2808 us_populated = B_TRUE; 2809 2810 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2811 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2812 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2813 uu_list_node_init(node, &node->usn_listnode, listpool); 2814 2815 while (node != NULL) { 2816 rmnode = node; 2817 node = uu_avl_next(avl_tree, node); 2818 uu_avl_remove(avl_tree, rmnode); 2819 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2820 uu_list_insert(list, rmnode, idx2); 2821 } 2822 2823 for (node = uu_list_first(list); node != NULL; 2824 node = uu_list_next(list, node)) { 2825 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2826 2827 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2828 uu_avl_insert(avl_tree, node, idx); 2829 } 2830 2831 uu_list_destroy(list); 2832 uu_list_pool_destroy(listpool); 2833 2834 /* Print and free node nvlist memory */ 2835 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2836 cb.cb_avl); 2837 2838 zfs_free_sort_columns(sortcol); 2839 2840 /* Clean up the AVL tree */ 2841 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2842 nomem(); 2843 2844 while ((node = uu_avl_walk_next(walk)) != NULL) { 2845 uu_avl_remove(cb.cb_avl, node); 2846 free(node); 2847 } 2848 2849 uu_avl_walk_end(walk); 2850 uu_avl_destroy(avl_tree); 2851 uu_avl_pool_destroy(avl_pool); 2852 2853 return (ret); 2854 } 2855 2856 /* 2857 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2858 * [-t type[,...]] [filesystem|volume|snapshot] ... 2859 * 2860 * -H Scripted mode; elide headers and separate columns by tabs. 2861 * -p Display values in parsable (literal) format. 2862 * -r Recurse over all children. 2863 * -d Limit recursion by depth. 2864 * -o Control which fields to display. 2865 * -s Specify sort columns, descending order. 2866 * -S Specify sort columns, ascending order. 2867 * -t Control which object types to display. 2868 * 2869 * When given no arguments, list all filesystems in the system. 2870 * Otherwise, list the specified datasets, optionally recursing down them if 2871 * '-r' is specified. 2872 */ 2873 typedef struct list_cbdata { 2874 boolean_t cb_first; 2875 boolean_t cb_literal; 2876 boolean_t cb_scripted; 2877 zprop_list_t *cb_proplist; 2878 } list_cbdata_t; 2879 2880 /* 2881 * Given a list of columns to display, output appropriate headers for each one. 2882 */ 2883 static void 2884 print_header(list_cbdata_t *cb) 2885 { 2886 zprop_list_t *pl = cb->cb_proplist; 2887 char headerbuf[ZFS_MAXPROPLEN]; 2888 const char *header; 2889 int i; 2890 boolean_t first = B_TRUE; 2891 boolean_t right_justify; 2892 2893 for (; pl != NULL; pl = pl->pl_next) { 2894 if (!first) { 2895 (void) printf(" "); 2896 } else { 2897 first = B_FALSE; 2898 } 2899 2900 right_justify = B_FALSE; 2901 if (pl->pl_prop != ZPROP_INVAL) { 2902 header = zfs_prop_column_name(pl->pl_prop); 2903 right_justify = zfs_prop_align_right(pl->pl_prop); 2904 } else { 2905 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2906 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2907 headerbuf[i] = '\0'; 2908 header = headerbuf; 2909 } 2910 2911 if (pl->pl_next == NULL && !right_justify) 2912 (void) printf("%s", header); 2913 else if (right_justify) 2914 (void) printf("%*s", pl->pl_width, header); 2915 else 2916 (void) printf("%-*s", pl->pl_width, header); 2917 } 2918 2919 (void) printf("\n"); 2920 } 2921 2922 /* 2923 * Given a dataset and a list of fields, print out all the properties according 2924 * to the described layout. 2925 */ 2926 static void 2927 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2928 { 2929 zprop_list_t *pl = cb->cb_proplist; 2930 boolean_t first = B_TRUE; 2931 char property[ZFS_MAXPROPLEN]; 2932 nvlist_t *userprops = zfs_get_user_props(zhp); 2933 nvlist_t *propval; 2934 char *propstr; 2935 boolean_t right_justify; 2936 2937 for (; pl != NULL; pl = pl->pl_next) { 2938 if (!first) { 2939 if (cb->cb_scripted) 2940 (void) printf("\t"); 2941 else 2942 (void) printf(" "); 2943 } else { 2944 first = B_FALSE; 2945 } 2946 2947 if (pl->pl_prop != ZPROP_INVAL) { 2948 if (zfs_prop_get(zhp, pl->pl_prop, property, 2949 sizeof (property), NULL, NULL, 0, 2950 cb->cb_literal) != 0) 2951 propstr = "-"; 2952 else 2953 propstr = property; 2954 right_justify = zfs_prop_align_right(pl->pl_prop); 2955 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2956 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2957 property, sizeof (property), cb->cb_literal) != 0) 2958 propstr = "-"; 2959 else 2960 propstr = property; 2961 right_justify = B_TRUE; 2962 } else if (zfs_prop_written(pl->pl_user_prop)) { 2963 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2964 property, sizeof (property), cb->cb_literal) != 0) 2965 propstr = "-"; 2966 else 2967 propstr = property; 2968 right_justify = B_TRUE; 2969 } else { 2970 if (nvlist_lookup_nvlist(userprops, 2971 pl->pl_user_prop, &propval) != 0) 2972 propstr = "-"; 2973 else 2974 verify(nvlist_lookup_string(propval, 2975 ZPROP_VALUE, &propstr) == 0); 2976 right_justify = B_FALSE; 2977 } 2978 2979 /* 2980 * If this is being called in scripted mode, or if this is the 2981 * last column and it is left-justified, don't include a width 2982 * format specifier. 2983 */ 2984 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 2985 (void) printf("%s", propstr); 2986 else if (right_justify) 2987 (void) printf("%*s", pl->pl_width, propstr); 2988 else 2989 (void) printf("%-*s", pl->pl_width, propstr); 2990 } 2991 2992 (void) printf("\n"); 2993 } 2994 2995 /* 2996 * Generic callback function to list a dataset or snapshot. 2997 */ 2998 static int 2999 list_callback(zfs_handle_t *zhp, void *data) 3000 { 3001 list_cbdata_t *cbp = data; 3002 3003 if (cbp->cb_first) { 3004 if (!cbp->cb_scripted) 3005 print_header(cbp); 3006 cbp->cb_first = B_FALSE; 3007 } 3008 3009 print_dataset(zhp, cbp); 3010 3011 return (0); 3012 } 3013 3014 static int 3015 zfs_do_list(int argc, char **argv) 3016 { 3017 int c; 3018 static char default_fields[] = 3019 "name,used,available,referenced,mountpoint"; 3020 int types = ZFS_TYPE_DATASET; 3021 boolean_t types_specified = B_FALSE; 3022 char *fields = NULL; 3023 list_cbdata_t cb = { 0 }; 3024 char *value; 3025 int limit = 0; 3026 int ret = 0; 3027 zfs_sort_column_t *sortcol = NULL; 3028 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3029 3030 /* check options */ 3031 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3032 switch (c) { 3033 case 'o': 3034 fields = optarg; 3035 break; 3036 case 'p': 3037 cb.cb_literal = B_TRUE; 3038 flags |= ZFS_ITER_LITERAL_PROPS; 3039 break; 3040 case 'd': 3041 limit = parse_depth(optarg, &flags); 3042 break; 3043 case 'r': 3044 flags |= ZFS_ITER_RECURSE; 3045 break; 3046 case 'H': 3047 cb.cb_scripted = B_TRUE; 3048 break; 3049 case 's': 3050 if (zfs_add_sort_column(&sortcol, optarg, 3051 B_FALSE) != 0) { 3052 (void) fprintf(stderr, 3053 gettext("invalid property '%s'\n"), optarg); 3054 usage(B_FALSE); 3055 } 3056 break; 3057 case 'S': 3058 if (zfs_add_sort_column(&sortcol, optarg, 3059 B_TRUE) != 0) { 3060 (void) fprintf(stderr, 3061 gettext("invalid property '%s'\n"), optarg); 3062 usage(B_FALSE); 3063 } 3064 break; 3065 case 't': 3066 types = 0; 3067 types_specified = B_TRUE; 3068 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3069 while (*optarg != '\0') { 3070 static char *type_subopts[] = { "filesystem", 3071 "volume", "snapshot", "snap", "bookmark", 3072 "all", NULL }; 3073 3074 switch (getsubopt(&optarg, type_subopts, 3075 &value)) { 3076 case 0: 3077 types |= ZFS_TYPE_FILESYSTEM; 3078 break; 3079 case 1: 3080 types |= ZFS_TYPE_VOLUME; 3081 break; 3082 case 2: 3083 case 3: 3084 types |= ZFS_TYPE_SNAPSHOT; 3085 break; 3086 case 4: 3087 types |= ZFS_TYPE_BOOKMARK; 3088 break; 3089 case 5: 3090 types = ZFS_TYPE_DATASET | 3091 ZFS_TYPE_BOOKMARK; 3092 break; 3093 default: 3094 (void) fprintf(stderr, 3095 gettext("invalid type '%s'\n"), 3096 value); 3097 usage(B_FALSE); 3098 } 3099 } 3100 break; 3101 case ':': 3102 (void) fprintf(stderr, gettext("missing argument for " 3103 "'%c' option\n"), optopt); 3104 usage(B_FALSE); 3105 break; 3106 case '?': 3107 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3108 optopt); 3109 usage(B_FALSE); 3110 } 3111 } 3112 3113 argc -= optind; 3114 argv += optind; 3115 3116 if (fields == NULL) 3117 fields = default_fields; 3118 3119 /* 3120 * If "-o space" and no types were specified, don't display snapshots. 3121 */ 3122 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3123 types &= ~ZFS_TYPE_SNAPSHOT; 3124 3125 /* 3126 * If the user specifies '-o all', the zprop_get_list() doesn't 3127 * normally include the name of the dataset. For 'zfs list', we always 3128 * want this property to be first. 3129 */ 3130 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3131 != 0) 3132 usage(B_FALSE); 3133 3134 cb.cb_first = B_TRUE; 3135 3136 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3137 limit, list_callback, &cb); 3138 3139 zprop_free_list(cb.cb_proplist); 3140 zfs_free_sort_columns(sortcol); 3141 3142 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3143 (void) printf(gettext("no datasets available\n")); 3144 3145 return (ret); 3146 } 3147 3148 /* 3149 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3150 * zfs rename [-f] -p <fs | vol> <fs | vol> 3151 * zfs rename -r <snap> <snap> 3152 * 3153 * Renames the given dataset to another of the same type. 3154 * 3155 * The '-p' flag creates all the non-existing ancestors of the target first. 3156 */ 3157 /* ARGSUSED */ 3158 static int 3159 zfs_do_rename(int argc, char **argv) 3160 { 3161 zfs_handle_t *zhp; 3162 int c; 3163 int ret = 0; 3164 boolean_t recurse = B_FALSE; 3165 boolean_t parents = B_FALSE; 3166 boolean_t force_unmount = B_FALSE; 3167 3168 /* check options */ 3169 while ((c = getopt(argc, argv, "prf")) != -1) { 3170 switch (c) { 3171 case 'p': 3172 parents = B_TRUE; 3173 break; 3174 case 'r': 3175 recurse = B_TRUE; 3176 break; 3177 case 'f': 3178 force_unmount = B_TRUE; 3179 break; 3180 case '?': 3181 default: 3182 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3183 optopt); 3184 usage(B_FALSE); 3185 } 3186 } 3187 3188 argc -= optind; 3189 argv += optind; 3190 3191 /* check number of arguments */ 3192 if (argc < 1) { 3193 (void) fprintf(stderr, gettext("missing source dataset " 3194 "argument\n")); 3195 usage(B_FALSE); 3196 } 3197 if (argc < 2) { 3198 (void) fprintf(stderr, gettext("missing target dataset " 3199 "argument\n")); 3200 usage(B_FALSE); 3201 } 3202 if (argc > 2) { 3203 (void) fprintf(stderr, gettext("too many arguments\n")); 3204 usage(B_FALSE); 3205 } 3206 3207 if (recurse && parents) { 3208 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3209 "exclusive\n")); 3210 usage(B_FALSE); 3211 } 3212 3213 if (recurse && strchr(argv[0], '@') == 0) { 3214 (void) fprintf(stderr, gettext("source dataset for recursive " 3215 "rename must be a snapshot\n")); 3216 usage(B_FALSE); 3217 } 3218 3219 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3220 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3221 return (1); 3222 3223 /* If we were asked and the name looks good, try to create ancestors. */ 3224 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3225 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3226 zfs_close(zhp); 3227 return (1); 3228 } 3229 3230 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3231 3232 zfs_close(zhp); 3233 return (ret); 3234 } 3235 3236 /* 3237 * zfs promote <fs> 3238 * 3239 * Promotes the given clone fs to be the parent 3240 */ 3241 /* ARGSUSED */ 3242 static int 3243 zfs_do_promote(int argc, char **argv) 3244 { 3245 zfs_handle_t *zhp; 3246 int ret = 0; 3247 3248 /* check options */ 3249 if (argc > 1 && argv[1][0] == '-') { 3250 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3251 argv[1][1]); 3252 usage(B_FALSE); 3253 } 3254 3255 /* check number of arguments */ 3256 if (argc < 2) { 3257 (void) fprintf(stderr, gettext("missing clone filesystem" 3258 " argument\n")); 3259 usage(B_FALSE); 3260 } 3261 if (argc > 2) { 3262 (void) fprintf(stderr, gettext("too many arguments\n")); 3263 usage(B_FALSE); 3264 } 3265 3266 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3267 if (zhp == NULL) 3268 return (1); 3269 3270 ret = (zfs_promote(zhp) != 0); 3271 3272 3273 zfs_close(zhp); 3274 return (ret); 3275 } 3276 3277 /* 3278 * zfs rollback [-rRf] <snapshot> 3279 * 3280 * -r Delete any intervening snapshots before doing rollback 3281 * -R Delete any snapshots and their clones 3282 * -f ignored for backwards compatability 3283 * 3284 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3285 * since then and making it the active dataset. If more recent snapshots exist, 3286 * the command will complain unless the '-r' flag is given. 3287 */ 3288 typedef struct rollback_cbdata { 3289 uint64_t cb_create; 3290 boolean_t cb_first; 3291 int cb_doclones; 3292 char *cb_target; 3293 int cb_error; 3294 boolean_t cb_recurse; 3295 } rollback_cbdata_t; 3296 3297 static int 3298 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3299 { 3300 rollback_cbdata_t *cbp = data; 3301 3302 if (cbp->cb_first && cbp->cb_recurse) { 3303 (void) fprintf(stderr, gettext("cannot rollback to " 3304 "'%s': clones of previous snapshots exist\n"), 3305 cbp->cb_target); 3306 (void) fprintf(stderr, gettext("use '-R' to " 3307 "force deletion of the following clones and " 3308 "dependents:\n")); 3309 cbp->cb_first = 0; 3310 cbp->cb_error = 1; 3311 } 3312 3313 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3314 3315 zfs_close(zhp); 3316 return (0); 3317 } 3318 3319 /* 3320 * Report any snapshots more recent than the one specified. Used when '-r' is 3321 * not specified. We reuse this same callback for the snapshot dependents - if 3322 * 'cb_dependent' is set, then this is a dependent and we should report it 3323 * without checking the transaction group. 3324 */ 3325 static int 3326 rollback_check(zfs_handle_t *zhp, void *data) 3327 { 3328 rollback_cbdata_t *cbp = data; 3329 3330 if (cbp->cb_doclones) { 3331 zfs_close(zhp); 3332 return (0); 3333 } 3334 3335 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3336 if (cbp->cb_first && !cbp->cb_recurse) { 3337 (void) fprintf(stderr, gettext("cannot " 3338 "rollback to '%s': more recent snapshots " 3339 "or bookmarks exist\n"), 3340 cbp->cb_target); 3341 (void) fprintf(stderr, gettext("use '-r' to " 3342 "force deletion of the following " 3343 "snapshots and bookmarks:\n")); 3344 cbp->cb_first = 0; 3345 cbp->cb_error = 1; 3346 } 3347 3348 if (cbp->cb_recurse) { 3349 if (zfs_iter_dependents(zhp, B_TRUE, 3350 rollback_check_dependent, cbp) != 0) { 3351 zfs_close(zhp); 3352 return (-1); 3353 } 3354 } else { 3355 (void) fprintf(stderr, "%s\n", 3356 zfs_get_name(zhp)); 3357 } 3358 } 3359 zfs_close(zhp); 3360 return (0); 3361 } 3362 3363 static int 3364 zfs_do_rollback(int argc, char **argv) 3365 { 3366 int ret = 0; 3367 int c; 3368 boolean_t force = B_FALSE; 3369 rollback_cbdata_t cb = { 0 }; 3370 zfs_handle_t *zhp, *snap; 3371 char parentname[ZFS_MAXNAMELEN]; 3372 char *delim; 3373 3374 /* check options */ 3375 while ((c = getopt(argc, argv, "rRf")) != -1) { 3376 switch (c) { 3377 case 'r': 3378 cb.cb_recurse = 1; 3379 break; 3380 case 'R': 3381 cb.cb_recurse = 1; 3382 cb.cb_doclones = 1; 3383 break; 3384 case 'f': 3385 force = B_TRUE; 3386 break; 3387 case '?': 3388 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3389 optopt); 3390 usage(B_FALSE); 3391 } 3392 } 3393 3394 argc -= optind; 3395 argv += optind; 3396 3397 /* check number of arguments */ 3398 if (argc < 1) { 3399 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3400 usage(B_FALSE); 3401 } 3402 if (argc > 1) { 3403 (void) fprintf(stderr, gettext("too many arguments\n")); 3404 usage(B_FALSE); 3405 } 3406 3407 /* open the snapshot */ 3408 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3409 return (1); 3410 3411 /* open the parent dataset */ 3412 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3413 verify((delim = strrchr(parentname, '@')) != NULL); 3414 *delim = '\0'; 3415 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3416 zfs_close(snap); 3417 return (1); 3418 } 3419 3420 /* 3421 * Check for more recent snapshots and/or clones based on the presence 3422 * of '-r' and '-R'. 3423 */ 3424 cb.cb_target = argv[0]; 3425 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3426 cb.cb_first = B_TRUE; 3427 cb.cb_error = 0; 3428 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3429 goto out; 3430 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3431 goto out; 3432 3433 if ((ret = cb.cb_error) != 0) 3434 goto out; 3435 3436 /* 3437 * Rollback parent to the given snapshot. 3438 */ 3439 ret = zfs_rollback(zhp, snap, force); 3440 3441 out: 3442 zfs_close(snap); 3443 zfs_close(zhp); 3444 3445 if (ret == 0) 3446 return (0); 3447 else 3448 return (1); 3449 } 3450 3451 /* 3452 * zfs set property=value ... { fs | snap | vol } ... 3453 * 3454 * Sets the given properties for all datasets specified on the command line. 3455 */ 3456 3457 static int 3458 set_callback(zfs_handle_t *zhp, void *data) 3459 { 3460 nvlist_t *props = data; 3461 3462 if (zfs_prop_set_list(zhp, props) != 0) { 3463 switch (libzfs_errno(g_zfs)) { 3464 case EZFS_MOUNTFAILED: 3465 (void) fprintf(stderr, gettext("property may be set " 3466 "but unable to remount filesystem\n")); 3467 break; 3468 case EZFS_SHARENFSFAILED: 3469 (void) fprintf(stderr, gettext("property may be set " 3470 "but unable to reshare filesystem\n")); 3471 break; 3472 } 3473 return (1); 3474 } 3475 return (0); 3476 } 3477 3478 static int 3479 zfs_do_set(int argc, char **argv) 3480 { 3481 nvlist_t *props = NULL; 3482 int ds_start = -1; /* argv idx of first dataset arg */ 3483 int ret = 0; 3484 3485 /* check for options */ 3486 if (argc > 1 && argv[1][0] == '-') { 3487 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3488 argv[1][1]); 3489 usage(B_FALSE); 3490 } 3491 3492 /* check number of arguments */ 3493 if (argc < 2) { 3494 (void) fprintf(stderr, gettext("missing arguments\n")); 3495 usage(B_FALSE); 3496 } 3497 if (argc < 3) { 3498 if (strchr(argv[1], '=') == NULL) { 3499 (void) fprintf(stderr, gettext("missing property=value " 3500 "argument(s)\n")); 3501 } else { 3502 (void) fprintf(stderr, gettext("missing dataset " 3503 "name(s)\n")); 3504 } 3505 usage(B_FALSE); 3506 } 3507 3508 /* validate argument order: prop=val args followed by dataset args */ 3509 for (int i = 1; i < argc; i++) { 3510 if (strchr(argv[i], '=') != NULL) { 3511 if (ds_start > 0) { 3512 /* out-of-order prop=val argument */ 3513 (void) fprintf(stderr, gettext("invalid " 3514 "argument order\n"), i); 3515 usage(B_FALSE); 3516 } 3517 } else if (ds_start < 0) { 3518 ds_start = i; 3519 } 3520 } 3521 if (ds_start < 0) { 3522 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3523 usage(B_FALSE); 3524 } 3525 3526 /* Populate a list of property settings */ 3527 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3528 nomem(); 3529 for (int i = 1; i < ds_start; i++) { 3530 if ((ret = parseprop(props, argv[i])) != 0) 3531 goto error; 3532 } 3533 3534 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3535 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3536 3537 error: 3538 nvlist_free(props); 3539 return (ret); 3540 } 3541 3542 typedef struct snap_cbdata { 3543 nvlist_t *sd_nvl; 3544 boolean_t sd_recursive; 3545 const char *sd_snapname; 3546 } snap_cbdata_t; 3547 3548 static int 3549 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3550 { 3551 snap_cbdata_t *sd = arg; 3552 char *name; 3553 int rv = 0; 3554 int error; 3555 3556 if (sd->sd_recursive && 3557 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3558 zfs_close(zhp); 3559 return (0); 3560 } 3561 3562 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3563 if (error == -1) 3564 nomem(); 3565 fnvlist_add_boolean(sd->sd_nvl, name); 3566 free(name); 3567 3568 if (sd->sd_recursive) 3569 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3570 zfs_close(zhp); 3571 return (rv); 3572 } 3573 3574 /* 3575 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3576 * 3577 * Creates a snapshot with the given name. While functionally equivalent to 3578 * 'zfs create', it is a separate command to differentiate intent. 3579 */ 3580 static int 3581 zfs_do_snapshot(int argc, char **argv) 3582 { 3583 int ret = 0; 3584 char c; 3585 nvlist_t *props; 3586 snap_cbdata_t sd = { 0 }; 3587 boolean_t multiple_snaps = B_FALSE; 3588 3589 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3590 nomem(); 3591 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3592 nomem(); 3593 3594 /* check options */ 3595 while ((c = getopt(argc, argv, "ro:")) != -1) { 3596 switch (c) { 3597 case 'o': 3598 if (parseprop(props, optarg) != 0) 3599 return (1); 3600 break; 3601 case 'r': 3602 sd.sd_recursive = B_TRUE; 3603 multiple_snaps = B_TRUE; 3604 break; 3605 case '?': 3606 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3607 optopt); 3608 goto usage; 3609 } 3610 } 3611 3612 argc -= optind; 3613 argv += optind; 3614 3615 /* check number of arguments */ 3616 if (argc < 1) { 3617 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3618 goto usage; 3619 } 3620 3621 if (argc > 1) 3622 multiple_snaps = B_TRUE; 3623 for (; argc > 0; argc--, argv++) { 3624 char *atp; 3625 zfs_handle_t *zhp; 3626 3627 atp = strchr(argv[0], '@'); 3628 if (atp == NULL) 3629 goto usage; 3630 *atp = '\0'; 3631 sd.sd_snapname = atp + 1; 3632 zhp = zfs_open(g_zfs, argv[0], 3633 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3634 if (zhp == NULL) 3635 goto usage; 3636 if (zfs_snapshot_cb(zhp, &sd) != 0) 3637 goto usage; 3638 } 3639 3640 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3641 nvlist_free(sd.sd_nvl); 3642 nvlist_free(props); 3643 if (ret != 0 && multiple_snaps) 3644 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3645 return (ret != 0); 3646 3647 usage: 3648 nvlist_free(sd.sd_nvl); 3649 nvlist_free(props); 3650 usage(B_FALSE); 3651 return (-1); 3652 } 3653 3654 /* 3655 * Send a backup stream to stdout. 3656 */ 3657 static int 3658 zfs_do_send(int argc, char **argv) 3659 { 3660 char *fromname = NULL; 3661 char *toname = NULL; 3662 char *resume_token = NULL; 3663 char *cp; 3664 zfs_handle_t *zhp; 3665 sendflags_t flags = { 0 }; 3666 int c, err; 3667 nvlist_t *dbgnv = NULL; 3668 boolean_t extraverbose = B_FALSE; 3669 3670 /* check options */ 3671 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3672 switch (c) { 3673 case 'i': 3674 if (fromname) 3675 usage(B_FALSE); 3676 fromname = optarg; 3677 break; 3678 case 'I': 3679 if (fromname) 3680 usage(B_FALSE); 3681 fromname = optarg; 3682 flags.doall = B_TRUE; 3683 break; 3684 case 'R': 3685 flags.replicate = B_TRUE; 3686 break; 3687 case 'p': 3688 flags.props = B_TRUE; 3689 break; 3690 case 'P': 3691 flags.parsable = B_TRUE; 3692 flags.verbose = B_TRUE; 3693 break; 3694 case 'v': 3695 if (flags.verbose) 3696 extraverbose = B_TRUE; 3697 flags.verbose = B_TRUE; 3698 flags.progress = B_TRUE; 3699 break; 3700 case 'D': 3701 flags.dedup = B_TRUE; 3702 break; 3703 case 'n': 3704 flags.dryrun = B_TRUE; 3705 break; 3706 case 'L': 3707 flags.largeblock = B_TRUE; 3708 break; 3709 case 'e': 3710 flags.embed_data = B_TRUE; 3711 break; 3712 case 't': 3713 resume_token = optarg; 3714 break; 3715 case ':': 3716 (void) fprintf(stderr, gettext("missing argument for " 3717 "'%c' option\n"), optopt); 3718 usage(B_FALSE); 3719 break; 3720 case '?': 3721 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3722 optopt); 3723 usage(B_FALSE); 3724 } 3725 } 3726 3727 argc -= optind; 3728 argv += optind; 3729 3730 if (resume_token != NULL) { 3731 if (fromname != NULL || flags.replicate || flags.props || 3732 flags.dedup) { 3733 (void) fprintf(stderr, 3734 gettext("invalid flags combined with -t\n")); 3735 usage(B_FALSE); 3736 } 3737 if (argc != 0) { 3738 (void) fprintf(stderr, gettext("no additional " 3739 "arguments are permitted with -t\n")); 3740 usage(B_FALSE); 3741 } 3742 } else { 3743 if (argc < 1) { 3744 (void) fprintf(stderr, 3745 gettext("missing snapshot argument\n")); 3746 usage(B_FALSE); 3747 } 3748 if (argc > 1) { 3749 (void) fprintf(stderr, gettext("too many arguments\n")); 3750 usage(B_FALSE); 3751 } 3752 } 3753 3754 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3755 (void) fprintf(stderr, 3756 gettext("Error: Stream can not be written to a terminal.\n" 3757 "You must redirect standard output.\n")); 3758 return (1); 3759 } 3760 3761 if (resume_token != NULL) { 3762 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3763 resume_token)); 3764 } 3765 3766 /* 3767 * Special case sending a filesystem, or from a bookmark. 3768 */ 3769 if (strchr(argv[0], '@') == NULL || 3770 (fromname && strchr(fromname, '#') != NULL)) { 3771 char frombuf[ZFS_MAXNAMELEN]; 3772 enum lzc_send_flags lzc_flags = 0; 3773 3774 if (flags.replicate || flags.doall || flags.props || 3775 flags.dedup || flags.dryrun || flags.verbose || 3776 flags.progress) { 3777 (void) fprintf(stderr, 3778 gettext("Error: " 3779 "Unsupported flag with filesystem or bookmark.\n")); 3780 return (1); 3781 } 3782 3783 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3784 if (zhp == NULL) 3785 return (1); 3786 3787 if (flags.largeblock) 3788 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3789 if (flags.embed_data) 3790 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3791 3792 if (fromname != NULL && 3793 (fromname[0] == '#' || fromname[0] == '@')) { 3794 /* 3795 * Incremental source name begins with # or @. 3796 * Default to same fs as target. 3797 */ 3798 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3799 cp = strchr(frombuf, '@'); 3800 if (cp != NULL) 3801 *cp = '\0'; 3802 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3803 fromname = frombuf; 3804 } 3805 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3806 zfs_close(zhp); 3807 return (err != 0); 3808 } 3809 3810 cp = strchr(argv[0], '@'); 3811 *cp = '\0'; 3812 toname = cp + 1; 3813 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3814 if (zhp == NULL) 3815 return (1); 3816 3817 /* 3818 * If they specified the full path to the snapshot, chop off 3819 * everything except the short name of the snapshot, but special 3820 * case if they specify the origin. 3821 */ 3822 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3823 char origin[ZFS_MAXNAMELEN]; 3824 zprop_source_t src; 3825 3826 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3827 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3828 3829 if (strcmp(origin, fromname) == 0) { 3830 fromname = NULL; 3831 flags.fromorigin = B_TRUE; 3832 } else { 3833 *cp = '\0'; 3834 if (cp != fromname && strcmp(argv[0], fromname)) { 3835 (void) fprintf(stderr, 3836 gettext("incremental source must be " 3837 "in same filesystem\n")); 3838 usage(B_FALSE); 3839 } 3840 fromname = cp + 1; 3841 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3842 (void) fprintf(stderr, 3843 gettext("invalid incremental source\n")); 3844 usage(B_FALSE); 3845 } 3846 } 3847 } 3848 3849 if (flags.replicate && fromname == NULL) 3850 flags.doall = B_TRUE; 3851 3852 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3853 extraverbose ? &dbgnv : NULL); 3854 3855 if (extraverbose && dbgnv != NULL) { 3856 /* 3857 * dump_nvlist prints to stdout, but that's been 3858 * redirected to a file. Make it print to stderr 3859 * instead. 3860 */ 3861 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3862 dump_nvlist(dbgnv, 0); 3863 nvlist_free(dbgnv); 3864 } 3865 zfs_close(zhp); 3866 3867 return (err != 0); 3868 } 3869 3870 /* 3871 * Restore a backup stream from stdin. 3872 */ 3873 static int 3874 zfs_do_receive(int argc, char **argv) 3875 { 3876 int c, err; 3877 recvflags_t flags = { 0 }; 3878 boolean_t abort_resumable = B_FALSE; 3879 3880 nvlist_t *props; 3881 nvpair_t *nvp = NULL; 3882 3883 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3884 nomem(); 3885 3886 /* check options */ 3887 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3888 switch (c) { 3889 case 'o': 3890 if (parseprop(props, optarg) != 0) 3891 return (1); 3892 break; 3893 case 'd': 3894 flags.isprefix = B_TRUE; 3895 break; 3896 case 'e': 3897 flags.isprefix = B_TRUE; 3898 flags.istail = B_TRUE; 3899 break; 3900 case 'n': 3901 flags.dryrun = B_TRUE; 3902 break; 3903 case 'u': 3904 flags.nomount = B_TRUE; 3905 break; 3906 case 'v': 3907 flags.verbose = B_TRUE; 3908 break; 3909 case 's': 3910 flags.resumable = B_TRUE; 3911 break; 3912 case 'F': 3913 flags.force = B_TRUE; 3914 break; 3915 case 'A': 3916 abort_resumable = B_TRUE; 3917 break; 3918 case ':': 3919 (void) fprintf(stderr, gettext("missing argument for " 3920 "'%c' option\n"), optopt); 3921 usage(B_FALSE); 3922 break; 3923 case '?': 3924 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3925 optopt); 3926 usage(B_FALSE); 3927 } 3928 } 3929 3930 argc -= optind; 3931 argv += optind; 3932 3933 /* check number of arguments */ 3934 if (argc < 1) { 3935 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3936 usage(B_FALSE); 3937 } 3938 if (argc > 1) { 3939 (void) fprintf(stderr, gettext("too many arguments\n")); 3940 usage(B_FALSE); 3941 } 3942 3943 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3944 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3945 (void) fprintf(stderr, gettext("invalid option")); 3946 usage(B_FALSE); 3947 } 3948 } 3949 3950 if (abort_resumable) { 3951 if (flags.isprefix || flags.istail || flags.dryrun || 3952 flags.resumable || flags.nomount) { 3953 (void) fprintf(stderr, gettext("invalid option")); 3954 usage(B_FALSE); 3955 } 3956 3957 char namebuf[ZFS_MAXNAMELEN]; 3958 (void) snprintf(namebuf, sizeof (namebuf), 3959 "%s/%%recv", argv[0]); 3960 3961 if (zfs_dataset_exists(g_zfs, namebuf, 3962 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 3963 zfs_handle_t *zhp = zfs_open(g_zfs, 3964 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3965 if (zhp == NULL) 3966 return (1); 3967 err = zfs_destroy(zhp, B_FALSE); 3968 } else { 3969 zfs_handle_t *zhp = zfs_open(g_zfs, 3970 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3971 if (zhp == NULL) 3972 usage(B_FALSE); 3973 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 3974 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 3975 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 3976 (void) fprintf(stderr, 3977 gettext("'%s' does not have any " 3978 "resumable receive state to abort\n"), 3979 argv[0]); 3980 return (1); 3981 } 3982 err = zfs_destroy(zhp, B_FALSE); 3983 } 3984 3985 return (err != 0); 3986 } 3987 3988 if (isatty(STDIN_FILENO)) { 3989 (void) fprintf(stderr, 3990 gettext("Error: Backup stream can not be read " 3991 "from a terminal.\n" 3992 "You must redirect standard input.\n")); 3993 return (1); 3994 } 3995 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 3996 3997 return (err != 0); 3998 } 3999 4000 /* 4001 * allow/unallow stuff 4002 */ 4003 /* copied from zfs/sys/dsl_deleg.h */ 4004 #define ZFS_DELEG_PERM_CREATE "create" 4005 #define ZFS_DELEG_PERM_DESTROY "destroy" 4006 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4007 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4008 #define ZFS_DELEG_PERM_CLONE "clone" 4009 #define ZFS_DELEG_PERM_PROMOTE "promote" 4010 #define ZFS_DELEG_PERM_RENAME "rename" 4011 #define ZFS_DELEG_PERM_MOUNT "mount" 4012 #define ZFS_DELEG_PERM_SHARE "share" 4013 #define ZFS_DELEG_PERM_SEND "send" 4014 #define ZFS_DELEG_PERM_RECEIVE "receive" 4015 #define ZFS_DELEG_PERM_ALLOW "allow" 4016 #define ZFS_DELEG_PERM_USERPROP "userprop" 4017 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4018 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4019 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4020 #define ZFS_DELEG_PERM_USERUSED "userused" 4021 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4022 #define ZFS_DELEG_PERM_HOLD "hold" 4023 #define ZFS_DELEG_PERM_RELEASE "release" 4024 #define ZFS_DELEG_PERM_DIFF "diff" 4025 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4026 4027 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4028 4029 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4030 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4031 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4032 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4033 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4034 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4035 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4036 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4037 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4038 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4039 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4040 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4041 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4042 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4043 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4044 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4045 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4046 4047 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4048 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4049 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4050 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4051 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4052 { NULL, ZFS_DELEG_NOTE_NONE } 4053 }; 4054 4055 /* permission structure */ 4056 typedef struct deleg_perm { 4057 zfs_deleg_who_type_t dp_who_type; 4058 const char *dp_name; 4059 boolean_t dp_local; 4060 boolean_t dp_descend; 4061 } deleg_perm_t; 4062 4063 /* */ 4064 typedef struct deleg_perm_node { 4065 deleg_perm_t dpn_perm; 4066 4067 uu_avl_node_t dpn_avl_node; 4068 } deleg_perm_node_t; 4069 4070 typedef struct fs_perm fs_perm_t; 4071 4072 /* permissions set */ 4073 typedef struct who_perm { 4074 zfs_deleg_who_type_t who_type; 4075 const char *who_name; /* id */ 4076 char who_ug_name[256]; /* user/group name */ 4077 fs_perm_t *who_fsperm; /* uplink */ 4078 4079 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4080 } who_perm_t; 4081 4082 /* */ 4083 typedef struct who_perm_node { 4084 who_perm_t who_perm; 4085 uu_avl_node_t who_avl_node; 4086 } who_perm_node_t; 4087 4088 typedef struct fs_perm_set fs_perm_set_t; 4089 /* fs permissions */ 4090 struct fs_perm { 4091 const char *fsp_name; 4092 4093 uu_avl_t *fsp_sc_avl; /* sets,create */ 4094 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4095 4096 fs_perm_set_t *fsp_set; /* uplink */ 4097 }; 4098 4099 /* */ 4100 typedef struct fs_perm_node { 4101 fs_perm_t fspn_fsperm; 4102 uu_avl_t *fspn_avl; 4103 4104 uu_list_node_t fspn_list_node; 4105 } fs_perm_node_t; 4106 4107 /* top level structure */ 4108 struct fs_perm_set { 4109 uu_list_pool_t *fsps_list_pool; 4110 uu_list_t *fsps_list; /* list of fs_perms */ 4111 4112 uu_avl_pool_t *fsps_named_set_avl_pool; 4113 uu_avl_pool_t *fsps_who_perm_avl_pool; 4114 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4115 }; 4116 4117 static inline const char * 4118 deleg_perm_type(zfs_deleg_note_t note) 4119 { 4120 /* subcommands */ 4121 switch (note) { 4122 /* SUBCOMMANDS */ 4123 /* OTHER */ 4124 case ZFS_DELEG_NOTE_GROUPQUOTA: 4125 case ZFS_DELEG_NOTE_GROUPUSED: 4126 case ZFS_DELEG_NOTE_USERPROP: 4127 case ZFS_DELEG_NOTE_USERQUOTA: 4128 case ZFS_DELEG_NOTE_USERUSED: 4129 /* other */ 4130 return (gettext("other")); 4131 default: 4132 return (gettext("subcommand")); 4133 } 4134 } 4135 4136 static int inline 4137 who_type2weight(zfs_deleg_who_type_t who_type) 4138 { 4139 int res; 4140 switch (who_type) { 4141 case ZFS_DELEG_NAMED_SET_SETS: 4142 case ZFS_DELEG_NAMED_SET: 4143 res = 0; 4144 break; 4145 case ZFS_DELEG_CREATE_SETS: 4146 case ZFS_DELEG_CREATE: 4147 res = 1; 4148 break; 4149 case ZFS_DELEG_USER_SETS: 4150 case ZFS_DELEG_USER: 4151 res = 2; 4152 break; 4153 case ZFS_DELEG_GROUP_SETS: 4154 case ZFS_DELEG_GROUP: 4155 res = 3; 4156 break; 4157 case ZFS_DELEG_EVERYONE_SETS: 4158 case ZFS_DELEG_EVERYONE: 4159 res = 4; 4160 break; 4161 default: 4162 res = -1; 4163 } 4164 4165 return (res); 4166 } 4167 4168 /* ARGSUSED */ 4169 static int 4170 who_perm_compare(const void *larg, const void *rarg, void *unused) 4171 { 4172 const who_perm_node_t *l = larg; 4173 const who_perm_node_t *r = rarg; 4174 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4175 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4176 int lweight = who_type2weight(ltype); 4177 int rweight = who_type2weight(rtype); 4178 int res = lweight - rweight; 4179 if (res == 0) 4180 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4181 ZFS_MAX_DELEG_NAME-1); 4182 4183 if (res == 0) 4184 return (0); 4185 if (res > 0) 4186 return (1); 4187 else 4188 return (-1); 4189 } 4190 4191 /* ARGSUSED */ 4192 static int 4193 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4194 { 4195 const deleg_perm_node_t *l = larg; 4196 const deleg_perm_node_t *r = rarg; 4197 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4198 ZFS_MAX_DELEG_NAME-1); 4199 4200 if (res == 0) 4201 return (0); 4202 4203 if (res > 0) 4204 return (1); 4205 else 4206 return (-1); 4207 } 4208 4209 static inline void 4210 fs_perm_set_init(fs_perm_set_t *fspset) 4211 { 4212 bzero(fspset, sizeof (fs_perm_set_t)); 4213 4214 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4215 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4216 NULL, UU_DEFAULT)) == NULL) 4217 nomem(); 4218 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4219 UU_DEFAULT)) == NULL) 4220 nomem(); 4221 4222 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4223 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4224 who_perm_node_t, who_avl_node), who_perm_compare, 4225 UU_DEFAULT)) == NULL) 4226 nomem(); 4227 4228 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4229 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4230 who_perm_node_t, who_avl_node), who_perm_compare, 4231 UU_DEFAULT)) == NULL) 4232 nomem(); 4233 4234 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4235 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4236 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4237 == NULL) 4238 nomem(); 4239 } 4240 4241 static inline void fs_perm_fini(fs_perm_t *); 4242 static inline void who_perm_fini(who_perm_t *); 4243 4244 static inline void 4245 fs_perm_set_fini(fs_perm_set_t *fspset) 4246 { 4247 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4248 4249 while (node != NULL) { 4250 fs_perm_node_t *next_node = 4251 uu_list_next(fspset->fsps_list, node); 4252 fs_perm_t *fsperm = &node->fspn_fsperm; 4253 fs_perm_fini(fsperm); 4254 uu_list_remove(fspset->fsps_list, node); 4255 free(node); 4256 node = next_node; 4257 } 4258 4259 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4260 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4261 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4262 } 4263 4264 static inline void 4265 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4266 const char *name) 4267 { 4268 deleg_perm->dp_who_type = type; 4269 deleg_perm->dp_name = name; 4270 } 4271 4272 static inline void 4273 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4274 zfs_deleg_who_type_t type, const char *name) 4275 { 4276 uu_avl_pool_t *pool; 4277 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4278 4279 bzero(who_perm, sizeof (who_perm_t)); 4280 4281 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4282 UU_DEFAULT)) == NULL) 4283 nomem(); 4284 4285 who_perm->who_type = type; 4286 who_perm->who_name = name; 4287 who_perm->who_fsperm = fsperm; 4288 } 4289 4290 static inline void 4291 who_perm_fini(who_perm_t *who_perm) 4292 { 4293 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4294 4295 while (node != NULL) { 4296 deleg_perm_node_t *next_node = 4297 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4298 4299 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4300 free(node); 4301 node = next_node; 4302 } 4303 4304 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4305 } 4306 4307 static inline void 4308 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4309 { 4310 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4311 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4312 4313 bzero(fsperm, sizeof (fs_perm_t)); 4314 4315 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4316 == NULL) 4317 nomem(); 4318 4319 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4320 == NULL) 4321 nomem(); 4322 4323 fsperm->fsp_set = fspset; 4324 fsperm->fsp_name = fsname; 4325 } 4326 4327 static inline void 4328 fs_perm_fini(fs_perm_t *fsperm) 4329 { 4330 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4331 while (node != NULL) { 4332 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4333 node); 4334 who_perm_t *who_perm = &node->who_perm; 4335 who_perm_fini(who_perm); 4336 uu_avl_remove(fsperm->fsp_sc_avl, node); 4337 free(node); 4338 node = next_node; 4339 } 4340 4341 node = uu_avl_first(fsperm->fsp_uge_avl); 4342 while (node != NULL) { 4343 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4344 node); 4345 who_perm_t *who_perm = &node->who_perm; 4346 who_perm_fini(who_perm); 4347 uu_avl_remove(fsperm->fsp_uge_avl, node); 4348 free(node); 4349 node = next_node; 4350 } 4351 4352 uu_avl_destroy(fsperm->fsp_sc_avl); 4353 uu_avl_destroy(fsperm->fsp_uge_avl); 4354 } 4355 4356 static void inline 4357 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4358 zfs_deleg_who_type_t who_type, const char *name, char locality) 4359 { 4360 uu_avl_index_t idx = 0; 4361 4362 deleg_perm_node_t *found_node = NULL; 4363 deleg_perm_t *deleg_perm = &node->dpn_perm; 4364 4365 deleg_perm_init(deleg_perm, who_type, name); 4366 4367 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4368 == NULL) 4369 uu_avl_insert(avl, node, idx); 4370 else { 4371 node = found_node; 4372 deleg_perm = &node->dpn_perm; 4373 } 4374 4375 4376 switch (locality) { 4377 case ZFS_DELEG_LOCAL: 4378 deleg_perm->dp_local = B_TRUE; 4379 break; 4380 case ZFS_DELEG_DESCENDENT: 4381 deleg_perm->dp_descend = B_TRUE; 4382 break; 4383 case ZFS_DELEG_NA: 4384 break; 4385 default: 4386 assert(B_FALSE); /* invalid locality */ 4387 } 4388 } 4389 4390 static inline int 4391 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4392 { 4393 nvpair_t *nvp = NULL; 4394 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4395 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4396 zfs_deleg_who_type_t who_type = who_perm->who_type; 4397 4398 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4399 const char *name = nvpair_name(nvp); 4400 data_type_t type = nvpair_type(nvp); 4401 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4402 deleg_perm_node_t *node = 4403 safe_malloc(sizeof (deleg_perm_node_t)); 4404 4405 assert(type == DATA_TYPE_BOOLEAN); 4406 4407 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4408 set_deleg_perm_node(avl, node, who_type, name, locality); 4409 } 4410 4411 return (0); 4412 } 4413 4414 static inline int 4415 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4416 { 4417 nvpair_t *nvp = NULL; 4418 fs_perm_set_t *fspset = fsperm->fsp_set; 4419 4420 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4421 nvlist_t *nvl2 = NULL; 4422 const char *name = nvpair_name(nvp); 4423 uu_avl_t *avl = NULL; 4424 uu_avl_pool_t *avl_pool; 4425 zfs_deleg_who_type_t perm_type = name[0]; 4426 char perm_locality = name[1]; 4427 const char *perm_name = name + 3; 4428 boolean_t is_set = B_TRUE; 4429 who_perm_t *who_perm = NULL; 4430 4431 assert('$' == name[2]); 4432 4433 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4434 return (-1); 4435 4436 switch (perm_type) { 4437 case ZFS_DELEG_CREATE: 4438 case ZFS_DELEG_CREATE_SETS: 4439 case ZFS_DELEG_NAMED_SET: 4440 case ZFS_DELEG_NAMED_SET_SETS: 4441 avl_pool = fspset->fsps_named_set_avl_pool; 4442 avl = fsperm->fsp_sc_avl; 4443 break; 4444 case ZFS_DELEG_USER: 4445 case ZFS_DELEG_USER_SETS: 4446 case ZFS_DELEG_GROUP: 4447 case ZFS_DELEG_GROUP_SETS: 4448 case ZFS_DELEG_EVERYONE: 4449 case ZFS_DELEG_EVERYONE_SETS: 4450 avl_pool = fspset->fsps_who_perm_avl_pool; 4451 avl = fsperm->fsp_uge_avl; 4452 break; 4453 } 4454 4455 if (is_set) { 4456 who_perm_node_t *found_node = NULL; 4457 who_perm_node_t *node = safe_malloc( 4458 sizeof (who_perm_node_t)); 4459 who_perm = &node->who_perm; 4460 uu_avl_index_t idx = 0; 4461 4462 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4463 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4464 4465 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4466 == NULL) { 4467 if (avl == fsperm->fsp_uge_avl) { 4468 uid_t rid = 0; 4469 struct passwd *p = NULL; 4470 struct group *g = NULL; 4471 const char *nice_name = NULL; 4472 4473 switch (perm_type) { 4474 case ZFS_DELEG_USER_SETS: 4475 case ZFS_DELEG_USER: 4476 rid = atoi(perm_name); 4477 p = getpwuid(rid); 4478 if (p) 4479 nice_name = p->pw_name; 4480 break; 4481 case ZFS_DELEG_GROUP_SETS: 4482 case ZFS_DELEG_GROUP: 4483 rid = atoi(perm_name); 4484 g = getgrgid(rid); 4485 if (g) 4486 nice_name = g->gr_name; 4487 break; 4488 } 4489 4490 if (nice_name != NULL) 4491 (void) strlcpy( 4492 node->who_perm.who_ug_name, 4493 nice_name, 256); 4494 } 4495 4496 uu_avl_insert(avl, node, idx); 4497 } else { 4498 node = found_node; 4499 who_perm = &node->who_perm; 4500 } 4501 } 4502 4503 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4504 } 4505 4506 return (0); 4507 } 4508 4509 static inline int 4510 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4511 { 4512 nvpair_t *nvp = NULL; 4513 uu_avl_index_t idx = 0; 4514 4515 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4516 nvlist_t *nvl2 = NULL; 4517 const char *fsname = nvpair_name(nvp); 4518 data_type_t type = nvpair_type(nvp); 4519 fs_perm_t *fsperm = NULL; 4520 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4521 if (node == NULL) 4522 nomem(); 4523 4524 fsperm = &node->fspn_fsperm; 4525 4526 assert(DATA_TYPE_NVLIST == type); 4527 4528 uu_list_node_init(node, &node->fspn_list_node, 4529 fspset->fsps_list_pool); 4530 4531 idx = uu_list_numnodes(fspset->fsps_list); 4532 fs_perm_init(fsperm, fspset, fsname); 4533 4534 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4535 return (-1); 4536 4537 (void) parse_fs_perm(fsperm, nvl2); 4538 4539 uu_list_insert(fspset->fsps_list, node, idx); 4540 } 4541 4542 return (0); 4543 } 4544 4545 static inline const char * 4546 deleg_perm_comment(zfs_deleg_note_t note) 4547 { 4548 const char *str = ""; 4549 4550 /* subcommands */ 4551 switch (note) { 4552 /* SUBCOMMANDS */ 4553 case ZFS_DELEG_NOTE_ALLOW: 4554 str = gettext("Must also have the permission that is being" 4555 "\n\t\t\t\tallowed"); 4556 break; 4557 case ZFS_DELEG_NOTE_CLONE: 4558 str = gettext("Must also have the 'create' ability and 'mount'" 4559 "\n\t\t\t\tability in the origin file system"); 4560 break; 4561 case ZFS_DELEG_NOTE_CREATE: 4562 str = gettext("Must also have the 'mount' ability"); 4563 break; 4564 case ZFS_DELEG_NOTE_DESTROY: 4565 str = gettext("Must also have the 'mount' ability"); 4566 break; 4567 case ZFS_DELEG_NOTE_DIFF: 4568 str = gettext("Allows lookup of paths within a dataset;" 4569 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4570 "\n\t\t\t\tin order to use zfs diff"); 4571 break; 4572 case ZFS_DELEG_NOTE_HOLD: 4573 str = gettext("Allows adding a user hold to a snapshot"); 4574 break; 4575 case ZFS_DELEG_NOTE_MOUNT: 4576 str = gettext("Allows mount/umount of ZFS datasets"); 4577 break; 4578 case ZFS_DELEG_NOTE_PROMOTE: 4579 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4580 " 'promote' ability in the origin file system"); 4581 break; 4582 case ZFS_DELEG_NOTE_RECEIVE: 4583 str = gettext("Must also have the 'mount' and 'create'" 4584 " ability"); 4585 break; 4586 case ZFS_DELEG_NOTE_RELEASE: 4587 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4588 "might destroy the snapshot"); 4589 break; 4590 case ZFS_DELEG_NOTE_RENAME: 4591 str = gettext("Must also have the 'mount' and 'create'" 4592 "\n\t\t\t\tability in the new parent"); 4593 break; 4594 case ZFS_DELEG_NOTE_ROLLBACK: 4595 str = gettext(""); 4596 break; 4597 case ZFS_DELEG_NOTE_SEND: 4598 str = gettext(""); 4599 break; 4600 case ZFS_DELEG_NOTE_SHARE: 4601 str = gettext("Allows sharing file systems over NFS or SMB" 4602 "\n\t\t\t\tprotocols"); 4603 break; 4604 case ZFS_DELEG_NOTE_SNAPSHOT: 4605 str = gettext(""); 4606 break; 4607 /* 4608 * case ZFS_DELEG_NOTE_VSCAN: 4609 * str = gettext(""); 4610 * break; 4611 */ 4612 /* OTHER */ 4613 case ZFS_DELEG_NOTE_GROUPQUOTA: 4614 str = gettext("Allows accessing any groupquota@... property"); 4615 break; 4616 case ZFS_DELEG_NOTE_GROUPUSED: 4617 str = gettext("Allows reading any groupused@... property"); 4618 break; 4619 case ZFS_DELEG_NOTE_USERPROP: 4620 str = gettext("Allows changing any user property"); 4621 break; 4622 case ZFS_DELEG_NOTE_USERQUOTA: 4623 str = gettext("Allows accessing any userquota@... property"); 4624 break; 4625 case ZFS_DELEG_NOTE_USERUSED: 4626 str = gettext("Allows reading any userused@... property"); 4627 break; 4628 /* other */ 4629 default: 4630 str = ""; 4631 } 4632 4633 return (str); 4634 } 4635 4636 struct allow_opts { 4637 boolean_t local; 4638 boolean_t descend; 4639 boolean_t user; 4640 boolean_t group; 4641 boolean_t everyone; 4642 boolean_t create; 4643 boolean_t set; 4644 boolean_t recursive; /* unallow only */ 4645 boolean_t prt_usage; 4646 4647 boolean_t prt_perms; 4648 char *who; 4649 char *perms; 4650 const char *dataset; 4651 }; 4652 4653 static inline int 4654 prop_cmp(const void *a, const void *b) 4655 { 4656 const char *str1 = *(const char **)a; 4657 const char *str2 = *(const char **)b; 4658 return (strcmp(str1, str2)); 4659 } 4660 4661 static void 4662 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4663 { 4664 const char *opt_desc[] = { 4665 "-h", gettext("show this help message and exit"), 4666 "-l", gettext("set permission locally"), 4667 "-d", gettext("set permission for descents"), 4668 "-u", gettext("set permission for user"), 4669 "-g", gettext("set permission for group"), 4670 "-e", gettext("set permission for everyone"), 4671 "-c", gettext("set create time permission"), 4672 "-s", gettext("define permission set"), 4673 /* unallow only */ 4674 "-r", gettext("remove permissions recursively"), 4675 }; 4676 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4677 size_t allow_size = unallow_size - 2; 4678 const char *props[ZFS_NUM_PROPS]; 4679 int i; 4680 size_t count = 0; 4681 FILE *fp = requested ? stdout : stderr; 4682 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4683 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4684 4685 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4686 HELP_ALLOW)); 4687 (void) fprintf(fp, gettext("Options:\n")); 4688 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4689 const char *opt = opt_desc[i++]; 4690 const char *optdsc = opt_desc[i]; 4691 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4692 } 4693 4694 (void) fprintf(fp, gettext("\nThe following permissions are " 4695 "supported:\n\n")); 4696 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4697 gettext("NOTES")); 4698 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4699 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4700 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4701 const char *perm_type = deleg_perm_type(perm_note); 4702 const char *perm_comment = deleg_perm_comment(perm_note); 4703 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4704 } 4705 4706 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4707 zprop_desc_t *pd = &pdtbl[i]; 4708 if (pd->pd_visible != B_TRUE) 4709 continue; 4710 4711 if (pd->pd_attr == PROP_READONLY) 4712 continue; 4713 4714 props[count++] = pd->pd_name; 4715 } 4716 props[count] = NULL; 4717 4718 qsort(props, count, sizeof (char *), prop_cmp); 4719 4720 for (i = 0; i < count; i++) 4721 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4722 4723 if (msg != NULL) 4724 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4725 4726 exit(requested ? 0 : 2); 4727 } 4728 4729 static inline const char * 4730 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4731 char **permsp) 4732 { 4733 if (un && argc == expected_argc - 1) 4734 *permsp = NULL; 4735 else if (argc == expected_argc) 4736 *permsp = argv[argc - 2]; 4737 else 4738 allow_usage(un, B_FALSE, 4739 gettext("wrong number of parameters\n")); 4740 4741 return (argv[argc - 1]); 4742 } 4743 4744 static void 4745 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4746 { 4747 int uge_sum = opts->user + opts->group + opts->everyone; 4748 int csuge_sum = opts->create + opts->set + uge_sum; 4749 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4750 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4751 4752 if (uge_sum > 1) 4753 allow_usage(un, B_FALSE, 4754 gettext("-u, -g, and -e are mutually exclusive\n")); 4755 4756 if (opts->prt_usage) 4757 if (argc == 0 && all_sum == 0) 4758 allow_usage(un, B_TRUE, NULL); 4759 else 4760 usage(B_FALSE); 4761 4762 if (opts->set) { 4763 if (csuge_sum > 1) 4764 allow_usage(un, B_FALSE, 4765 gettext("invalid options combined with -s\n")); 4766 4767 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4768 if (argv[0][0] != '@') 4769 allow_usage(un, B_FALSE, 4770 gettext("invalid set name: missing '@' prefix\n")); 4771 opts->who = argv[0]; 4772 } else if (opts->create) { 4773 if (ldcsuge_sum > 1) 4774 allow_usage(un, B_FALSE, 4775 gettext("invalid options combined with -c\n")); 4776 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4777 } else if (opts->everyone) { 4778 if (csuge_sum > 1) 4779 allow_usage(un, B_FALSE, 4780 gettext("invalid options combined with -e\n")); 4781 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4782 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4783 == 0) { 4784 opts->everyone = B_TRUE; 4785 argc--; 4786 argv++; 4787 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4788 } else if (argc == 1 && !un) { 4789 opts->prt_perms = B_TRUE; 4790 opts->dataset = argv[argc-1]; 4791 } else { 4792 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4793 opts->who = argv[0]; 4794 } 4795 4796 if (!opts->local && !opts->descend) { 4797 opts->local = B_TRUE; 4798 opts->descend = B_TRUE; 4799 } 4800 } 4801 4802 static void 4803 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4804 const char *who, char *perms, nvlist_t *top_nvl) 4805 { 4806 int i; 4807 char ld[2] = { '\0', '\0' }; 4808 char who_buf[ZFS_MAXNAMELEN+32]; 4809 char base_type; 4810 char set_type; 4811 nvlist_t *base_nvl = NULL; 4812 nvlist_t *set_nvl = NULL; 4813 nvlist_t *nvl; 4814 4815 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4816 nomem(); 4817 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4818 nomem(); 4819 4820 switch (type) { 4821 case ZFS_DELEG_NAMED_SET_SETS: 4822 case ZFS_DELEG_NAMED_SET: 4823 set_type = ZFS_DELEG_NAMED_SET_SETS; 4824 base_type = ZFS_DELEG_NAMED_SET; 4825 ld[0] = ZFS_DELEG_NA; 4826 break; 4827 case ZFS_DELEG_CREATE_SETS: 4828 case ZFS_DELEG_CREATE: 4829 set_type = ZFS_DELEG_CREATE_SETS; 4830 base_type = ZFS_DELEG_CREATE; 4831 ld[0] = ZFS_DELEG_NA; 4832 break; 4833 case ZFS_DELEG_USER_SETS: 4834 case ZFS_DELEG_USER: 4835 set_type = ZFS_DELEG_USER_SETS; 4836 base_type = ZFS_DELEG_USER; 4837 if (local) 4838 ld[0] = ZFS_DELEG_LOCAL; 4839 if (descend) 4840 ld[1] = ZFS_DELEG_DESCENDENT; 4841 break; 4842 case ZFS_DELEG_GROUP_SETS: 4843 case ZFS_DELEG_GROUP: 4844 set_type = ZFS_DELEG_GROUP_SETS; 4845 base_type = ZFS_DELEG_GROUP; 4846 if (local) 4847 ld[0] = ZFS_DELEG_LOCAL; 4848 if (descend) 4849 ld[1] = ZFS_DELEG_DESCENDENT; 4850 break; 4851 case ZFS_DELEG_EVERYONE_SETS: 4852 case ZFS_DELEG_EVERYONE: 4853 set_type = ZFS_DELEG_EVERYONE_SETS; 4854 base_type = ZFS_DELEG_EVERYONE; 4855 if (local) 4856 ld[0] = ZFS_DELEG_LOCAL; 4857 if (descend) 4858 ld[1] = ZFS_DELEG_DESCENDENT; 4859 } 4860 4861 if (perms != NULL) { 4862 char *curr = perms; 4863 char *end = curr + strlen(perms); 4864 4865 while (curr < end) { 4866 char *delim = strchr(curr, ','); 4867 if (delim == NULL) 4868 delim = end; 4869 else 4870 *delim = '\0'; 4871 4872 if (curr[0] == '@') 4873 nvl = set_nvl; 4874 else 4875 nvl = base_nvl; 4876 4877 (void) nvlist_add_boolean(nvl, curr); 4878 if (delim != end) 4879 *delim = ','; 4880 curr = delim + 1; 4881 } 4882 4883 for (i = 0; i < 2; i++) { 4884 char locality = ld[i]; 4885 if (locality == 0) 4886 continue; 4887 4888 if (!nvlist_empty(base_nvl)) { 4889 if (who != NULL) 4890 (void) snprintf(who_buf, 4891 sizeof (who_buf), "%c%c$%s", 4892 base_type, locality, who); 4893 else 4894 (void) snprintf(who_buf, 4895 sizeof (who_buf), "%c%c$", 4896 base_type, locality); 4897 4898 (void) nvlist_add_nvlist(top_nvl, who_buf, 4899 base_nvl); 4900 } 4901 4902 4903 if (!nvlist_empty(set_nvl)) { 4904 if (who != NULL) 4905 (void) snprintf(who_buf, 4906 sizeof (who_buf), "%c%c$%s", 4907 set_type, locality, who); 4908 else 4909 (void) snprintf(who_buf, 4910 sizeof (who_buf), "%c%c$", 4911 set_type, locality); 4912 4913 (void) nvlist_add_nvlist(top_nvl, who_buf, 4914 set_nvl); 4915 } 4916 } 4917 } else { 4918 for (i = 0; i < 2; i++) { 4919 char locality = ld[i]; 4920 if (locality == 0) 4921 continue; 4922 4923 if (who != NULL) 4924 (void) snprintf(who_buf, sizeof (who_buf), 4925 "%c%c$%s", base_type, locality, who); 4926 else 4927 (void) snprintf(who_buf, sizeof (who_buf), 4928 "%c%c$", base_type, locality); 4929 (void) nvlist_add_boolean(top_nvl, who_buf); 4930 4931 if (who != NULL) 4932 (void) snprintf(who_buf, sizeof (who_buf), 4933 "%c%c$%s", set_type, locality, who); 4934 else 4935 (void) snprintf(who_buf, sizeof (who_buf), 4936 "%c%c$", set_type, locality); 4937 (void) nvlist_add_boolean(top_nvl, who_buf); 4938 } 4939 } 4940 } 4941 4942 static int 4943 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4944 { 4945 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4946 nomem(); 4947 4948 if (opts->set) { 4949 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4950 opts->descend, opts->who, opts->perms, *nvlp); 4951 } else if (opts->create) { 4952 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4953 opts->descend, NULL, opts->perms, *nvlp); 4954 } else if (opts->everyone) { 4955 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4956 opts->descend, NULL, opts->perms, *nvlp); 4957 } else { 4958 char *curr = opts->who; 4959 char *end = curr + strlen(curr); 4960 4961 while (curr < end) { 4962 const char *who; 4963 zfs_deleg_who_type_t who_type; 4964 char *endch; 4965 char *delim = strchr(curr, ','); 4966 char errbuf[256]; 4967 char id[64]; 4968 struct passwd *p = NULL; 4969 struct group *g = NULL; 4970 4971 uid_t rid; 4972 if (delim == NULL) 4973 delim = end; 4974 else 4975 *delim = '\0'; 4976 4977 rid = (uid_t)strtol(curr, &endch, 0); 4978 if (opts->user) { 4979 who_type = ZFS_DELEG_USER; 4980 if (*endch != '\0') 4981 p = getpwnam(curr); 4982 else 4983 p = getpwuid(rid); 4984 4985 if (p != NULL) 4986 rid = p->pw_uid; 4987 else { 4988 (void) snprintf(errbuf, 256, gettext( 4989 "invalid user %s"), curr); 4990 allow_usage(un, B_TRUE, errbuf); 4991 } 4992 } else if (opts->group) { 4993 who_type = ZFS_DELEG_GROUP; 4994 if (*endch != '\0') 4995 g = getgrnam(curr); 4996 else 4997 g = getgrgid(rid); 4998 4999 if (g != NULL) 5000 rid = g->gr_gid; 5001 else { 5002 (void) snprintf(errbuf, 256, gettext( 5003 "invalid group %s"), curr); 5004 allow_usage(un, B_TRUE, errbuf); 5005 } 5006 } else { 5007 if (*endch != '\0') { 5008 p = getpwnam(curr); 5009 } else { 5010 p = getpwuid(rid); 5011 } 5012 5013 if (p == NULL) 5014 if (*endch != '\0') { 5015 g = getgrnam(curr); 5016 } else { 5017 g = getgrgid(rid); 5018 } 5019 5020 if (p != NULL) { 5021 who_type = ZFS_DELEG_USER; 5022 rid = p->pw_uid; 5023 } else if (g != NULL) { 5024 who_type = ZFS_DELEG_GROUP; 5025 rid = g->gr_gid; 5026 } else { 5027 (void) snprintf(errbuf, 256, gettext( 5028 "invalid user/group %s"), curr); 5029 allow_usage(un, B_TRUE, errbuf); 5030 } 5031 } 5032 5033 (void) sprintf(id, "%u", rid); 5034 who = id; 5035 5036 store_allow_perm(who_type, opts->local, 5037 opts->descend, who, opts->perms, *nvlp); 5038 curr = delim + 1; 5039 } 5040 } 5041 5042 return (0); 5043 } 5044 5045 static void 5046 print_set_creat_perms(uu_avl_t *who_avl) 5047 { 5048 const char *sc_title[] = { 5049 gettext("Permission sets:\n"), 5050 gettext("Create time permissions:\n"), 5051 NULL 5052 }; 5053 const char **title_ptr = sc_title; 5054 who_perm_node_t *who_node = NULL; 5055 int prev_weight = -1; 5056 5057 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5058 who_node = uu_avl_next(who_avl, who_node)) { 5059 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5060 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5061 const char *who_name = who_node->who_perm.who_name; 5062 int weight = who_type2weight(who_type); 5063 boolean_t first = B_TRUE; 5064 deleg_perm_node_t *deleg_node; 5065 5066 if (prev_weight != weight) { 5067 (void) printf(*title_ptr++); 5068 prev_weight = weight; 5069 } 5070 5071 if (who_name == NULL || strnlen(who_name, 1) == 0) 5072 (void) printf("\t"); 5073 else 5074 (void) printf("\t%s ", who_name); 5075 5076 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5077 deleg_node = uu_avl_next(avl, deleg_node)) { 5078 if (first) { 5079 (void) printf("%s", 5080 deleg_node->dpn_perm.dp_name); 5081 first = B_FALSE; 5082 } else 5083 (void) printf(",%s", 5084 deleg_node->dpn_perm.dp_name); 5085 } 5086 5087 (void) printf("\n"); 5088 } 5089 } 5090 5091 static void inline 5092 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5093 const char *title) 5094 { 5095 who_perm_node_t *who_node = NULL; 5096 boolean_t prt_title = B_TRUE; 5097 uu_avl_walk_t *walk; 5098 5099 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5100 nomem(); 5101 5102 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5103 const char *who_name = who_node->who_perm.who_name; 5104 const char *nice_who_name = who_node->who_perm.who_ug_name; 5105 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5106 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5107 char delim = ' '; 5108 deleg_perm_node_t *deleg_node; 5109 boolean_t prt_who = B_TRUE; 5110 5111 for (deleg_node = uu_avl_first(avl); 5112 deleg_node != NULL; 5113 deleg_node = uu_avl_next(avl, deleg_node)) { 5114 if (local != deleg_node->dpn_perm.dp_local || 5115 descend != deleg_node->dpn_perm.dp_descend) 5116 continue; 5117 5118 if (prt_who) { 5119 const char *who = NULL; 5120 if (prt_title) { 5121 prt_title = B_FALSE; 5122 (void) printf(title); 5123 } 5124 5125 switch (who_type) { 5126 case ZFS_DELEG_USER_SETS: 5127 case ZFS_DELEG_USER: 5128 who = gettext("user"); 5129 if (nice_who_name) 5130 who_name = nice_who_name; 5131 break; 5132 case ZFS_DELEG_GROUP_SETS: 5133 case ZFS_DELEG_GROUP: 5134 who = gettext("group"); 5135 if (nice_who_name) 5136 who_name = nice_who_name; 5137 break; 5138 case ZFS_DELEG_EVERYONE_SETS: 5139 case ZFS_DELEG_EVERYONE: 5140 who = gettext("everyone"); 5141 who_name = NULL; 5142 } 5143 5144 prt_who = B_FALSE; 5145 if (who_name == NULL) 5146 (void) printf("\t%s", who); 5147 else 5148 (void) printf("\t%s %s", who, who_name); 5149 } 5150 5151 (void) printf("%c%s", delim, 5152 deleg_node->dpn_perm.dp_name); 5153 delim = ','; 5154 } 5155 5156 if (!prt_who) 5157 (void) printf("\n"); 5158 } 5159 5160 uu_avl_walk_end(walk); 5161 } 5162 5163 static void 5164 print_fs_perms(fs_perm_set_t *fspset) 5165 { 5166 fs_perm_node_t *node = NULL; 5167 char buf[ZFS_MAXNAMELEN+32]; 5168 const char *dsname = buf; 5169 5170 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5171 node = uu_list_next(fspset->fsps_list, node)) { 5172 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5173 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5174 int left = 0; 5175 5176 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5177 gettext("---- Permissions on %s "), 5178 node->fspn_fsperm.fsp_name); 5179 (void) printf(dsname); 5180 left = 70 - strlen(buf); 5181 while (left-- > 0) 5182 (void) printf("-"); 5183 (void) printf("\n"); 5184 5185 print_set_creat_perms(sc_avl); 5186 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5187 gettext("Local permissions:\n")); 5188 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5189 gettext("Descendent permissions:\n")); 5190 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5191 gettext("Local+Descendent permissions:\n")); 5192 } 5193 } 5194 5195 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5196 5197 struct deleg_perms { 5198 boolean_t un; 5199 nvlist_t *nvl; 5200 }; 5201 5202 static int 5203 set_deleg_perms(zfs_handle_t *zhp, void *data) 5204 { 5205 struct deleg_perms *perms = (struct deleg_perms *)data; 5206 zfs_type_t zfs_type = zfs_get_type(zhp); 5207 5208 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5209 return (0); 5210 5211 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5212 } 5213 5214 static int 5215 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5216 { 5217 zfs_handle_t *zhp; 5218 nvlist_t *perm_nvl = NULL; 5219 nvlist_t *update_perm_nvl = NULL; 5220 int error = 1; 5221 int c; 5222 struct allow_opts opts = { 0 }; 5223 5224 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5225 5226 /* check opts */ 5227 while ((c = getopt(argc, argv, optstr)) != -1) { 5228 switch (c) { 5229 case 'l': 5230 opts.local = B_TRUE; 5231 break; 5232 case 'd': 5233 opts.descend = B_TRUE; 5234 break; 5235 case 'u': 5236 opts.user = B_TRUE; 5237 break; 5238 case 'g': 5239 opts.group = B_TRUE; 5240 break; 5241 case 'e': 5242 opts.everyone = B_TRUE; 5243 break; 5244 case 's': 5245 opts.set = B_TRUE; 5246 break; 5247 case 'c': 5248 opts.create = B_TRUE; 5249 break; 5250 case 'r': 5251 opts.recursive = B_TRUE; 5252 break; 5253 case ':': 5254 (void) fprintf(stderr, gettext("missing argument for " 5255 "'%c' option\n"), optopt); 5256 usage(B_FALSE); 5257 break; 5258 case 'h': 5259 opts.prt_usage = B_TRUE; 5260 break; 5261 case '?': 5262 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5263 optopt); 5264 usage(B_FALSE); 5265 } 5266 } 5267 5268 argc -= optind; 5269 argv += optind; 5270 5271 /* check arguments */ 5272 parse_allow_args(argc, argv, un, &opts); 5273 5274 /* try to open the dataset */ 5275 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5276 ZFS_TYPE_VOLUME)) == NULL) { 5277 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5278 opts.dataset); 5279 return (-1); 5280 } 5281 5282 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5283 goto cleanup2; 5284 5285 fs_perm_set_init(&fs_perm_set); 5286 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5287 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5288 goto cleanup1; 5289 } 5290 5291 if (opts.prt_perms) 5292 print_fs_perms(&fs_perm_set); 5293 else { 5294 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5295 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5296 goto cleanup0; 5297 5298 if (un && opts.recursive) { 5299 struct deleg_perms data = { un, update_perm_nvl }; 5300 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5301 &data) != 0) 5302 goto cleanup0; 5303 } 5304 } 5305 5306 error = 0; 5307 5308 cleanup0: 5309 nvlist_free(perm_nvl); 5310 if (update_perm_nvl != NULL) 5311 nvlist_free(update_perm_nvl); 5312 cleanup1: 5313 fs_perm_set_fini(&fs_perm_set); 5314 cleanup2: 5315 zfs_close(zhp); 5316 5317 return (error); 5318 } 5319 5320 static int 5321 zfs_do_allow(int argc, char **argv) 5322 { 5323 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5324 } 5325 5326 static int 5327 zfs_do_unallow(int argc, char **argv) 5328 { 5329 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5330 } 5331 5332 static int 5333 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5334 { 5335 int errors = 0; 5336 int i; 5337 const char *tag; 5338 boolean_t recursive = B_FALSE; 5339 const char *opts = holding ? "rt" : "r"; 5340 int c; 5341 5342 /* check options */ 5343 while ((c = getopt(argc, argv, opts)) != -1) { 5344 switch (c) { 5345 case 'r': 5346 recursive = B_TRUE; 5347 break; 5348 case '?': 5349 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5350 optopt); 5351 usage(B_FALSE); 5352 } 5353 } 5354 5355 argc -= optind; 5356 argv += optind; 5357 5358 /* check number of arguments */ 5359 if (argc < 2) 5360 usage(B_FALSE); 5361 5362 tag = argv[0]; 5363 --argc; 5364 ++argv; 5365 5366 if (holding && tag[0] == '.') { 5367 /* tags starting with '.' are reserved for libzfs */ 5368 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5369 usage(B_FALSE); 5370 } 5371 5372 for (i = 0; i < argc; ++i) { 5373 zfs_handle_t *zhp; 5374 char parent[ZFS_MAXNAMELEN]; 5375 const char *delim; 5376 char *path = argv[i]; 5377 5378 delim = strchr(path, '@'); 5379 if (delim == NULL) { 5380 (void) fprintf(stderr, 5381 gettext("'%s' is not a snapshot\n"), path); 5382 ++errors; 5383 continue; 5384 } 5385 (void) strncpy(parent, path, delim - path); 5386 parent[delim - path] = '\0'; 5387 5388 zhp = zfs_open(g_zfs, parent, 5389 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5390 if (zhp == NULL) { 5391 ++errors; 5392 continue; 5393 } 5394 if (holding) { 5395 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5396 ++errors; 5397 } else { 5398 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5399 ++errors; 5400 } 5401 zfs_close(zhp); 5402 } 5403 5404 return (errors != 0); 5405 } 5406 5407 /* 5408 * zfs hold [-r] [-t] <tag> <snap> ... 5409 * 5410 * -r Recursively hold 5411 * 5412 * Apply a user-hold with the given tag to the list of snapshots. 5413 */ 5414 static int 5415 zfs_do_hold(int argc, char **argv) 5416 { 5417 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5418 } 5419 5420 /* 5421 * zfs release [-r] <tag> <snap> ... 5422 * 5423 * -r Recursively release 5424 * 5425 * Release a user-hold with the given tag from the list of snapshots. 5426 */ 5427 static int 5428 zfs_do_release(int argc, char **argv) 5429 { 5430 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5431 } 5432 5433 typedef struct holds_cbdata { 5434 boolean_t cb_recursive; 5435 const char *cb_snapname; 5436 nvlist_t **cb_nvlp; 5437 size_t cb_max_namelen; 5438 size_t cb_max_taglen; 5439 } holds_cbdata_t; 5440 5441 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5442 #define DATETIME_BUF_LEN (32) 5443 /* 5444 * 5445 */ 5446 static void 5447 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5448 { 5449 int i; 5450 nvpair_t *nvp = NULL; 5451 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5452 const char *col; 5453 5454 if (!scripted) { 5455 for (i = 0; i < 3; i++) { 5456 col = gettext(hdr_cols[i]); 5457 if (i < 2) 5458 (void) printf("%-*s ", i ? tagwidth : nwidth, 5459 col); 5460 else 5461 (void) printf("%s\n", col); 5462 } 5463 } 5464 5465 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5466 char *zname = nvpair_name(nvp); 5467 nvlist_t *nvl2; 5468 nvpair_t *nvp2 = NULL; 5469 (void) nvpair_value_nvlist(nvp, &nvl2); 5470 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5471 char tsbuf[DATETIME_BUF_LEN]; 5472 char *tagname = nvpair_name(nvp2); 5473 uint64_t val = 0; 5474 time_t time; 5475 struct tm t; 5476 char sep = scripted ? '\t' : ' '; 5477 size_t sepnum = scripted ? 1 : 2; 5478 5479 (void) nvpair_value_uint64(nvp2, &val); 5480 time = (time_t)val; 5481 (void) localtime_r(&time, &t); 5482 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5483 gettext(STRFTIME_FMT_STR), &t); 5484 5485 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5486 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5487 } 5488 } 5489 } 5490 5491 /* 5492 * Generic callback function to list a dataset or snapshot. 5493 */ 5494 static int 5495 holds_callback(zfs_handle_t *zhp, void *data) 5496 { 5497 holds_cbdata_t *cbp = data; 5498 nvlist_t *top_nvl = *cbp->cb_nvlp; 5499 nvlist_t *nvl = NULL; 5500 nvpair_t *nvp = NULL; 5501 const char *zname = zfs_get_name(zhp); 5502 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5503 5504 if (cbp->cb_recursive) { 5505 const char *snapname; 5506 char *delim = strchr(zname, '@'); 5507 if (delim == NULL) 5508 return (0); 5509 5510 snapname = delim + 1; 5511 if (strcmp(cbp->cb_snapname, snapname)) 5512 return (0); 5513 } 5514 5515 if (zfs_get_holds(zhp, &nvl) != 0) 5516 return (-1); 5517 5518 if (znamelen > cbp->cb_max_namelen) 5519 cbp->cb_max_namelen = znamelen; 5520 5521 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5522 const char *tag = nvpair_name(nvp); 5523 size_t taglen = strnlen(tag, MAXNAMELEN); 5524 if (taglen > cbp->cb_max_taglen) 5525 cbp->cb_max_taglen = taglen; 5526 } 5527 5528 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5529 } 5530 5531 /* 5532 * zfs holds [-r] <snap> ... 5533 * 5534 * -r Recursively hold 5535 */ 5536 static int 5537 zfs_do_holds(int argc, char **argv) 5538 { 5539 int errors = 0; 5540 int c; 5541 int i; 5542 boolean_t scripted = B_FALSE; 5543 boolean_t recursive = B_FALSE; 5544 const char *opts = "rH"; 5545 nvlist_t *nvl; 5546 5547 int types = ZFS_TYPE_SNAPSHOT; 5548 holds_cbdata_t cb = { 0 }; 5549 5550 int limit = 0; 5551 int ret = 0; 5552 int flags = 0; 5553 5554 /* check options */ 5555 while ((c = getopt(argc, argv, opts)) != -1) { 5556 switch (c) { 5557 case 'r': 5558 recursive = B_TRUE; 5559 break; 5560 case 'H': 5561 scripted = B_TRUE; 5562 break; 5563 case '?': 5564 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5565 optopt); 5566 usage(B_FALSE); 5567 } 5568 } 5569 5570 if (recursive) { 5571 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5572 flags |= ZFS_ITER_RECURSE; 5573 } 5574 5575 argc -= optind; 5576 argv += optind; 5577 5578 /* check number of arguments */ 5579 if (argc < 1) 5580 usage(B_FALSE); 5581 5582 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5583 nomem(); 5584 5585 for (i = 0; i < argc; ++i) { 5586 char *snapshot = argv[i]; 5587 const char *delim; 5588 const char *snapname; 5589 5590 delim = strchr(snapshot, '@'); 5591 if (delim == NULL) { 5592 (void) fprintf(stderr, 5593 gettext("'%s' is not a snapshot\n"), snapshot); 5594 ++errors; 5595 continue; 5596 } 5597 snapname = delim + 1; 5598 if (recursive) 5599 snapshot[delim - snapshot] = '\0'; 5600 5601 cb.cb_recursive = recursive; 5602 cb.cb_snapname = snapname; 5603 cb.cb_nvlp = &nvl; 5604 5605 /* 5606 * 1. collect holds data, set format options 5607 */ 5608 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5609 holds_callback, &cb); 5610 if (ret != 0) 5611 ++errors; 5612 } 5613 5614 /* 5615 * 2. print holds data 5616 */ 5617 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5618 5619 if (nvlist_empty(nvl)) 5620 (void) printf(gettext("no datasets available\n")); 5621 5622 nvlist_free(nvl); 5623 5624 return (0 != errors); 5625 } 5626 5627 #define CHECK_SPINNER 30 5628 #define SPINNER_TIME 3 /* seconds */ 5629 #define MOUNT_TIME 5 /* seconds */ 5630 5631 static int 5632 get_one_dataset(zfs_handle_t *zhp, void *data) 5633 { 5634 static char *spin[] = { "-", "\\", "|", "/" }; 5635 static int spinval = 0; 5636 static int spincheck = 0; 5637 static time_t last_spin_time = (time_t)0; 5638 get_all_cb_t *cbp = data; 5639 zfs_type_t type = zfs_get_type(zhp); 5640 5641 if (cbp->cb_verbose) { 5642 if (--spincheck < 0) { 5643 time_t now = time(NULL); 5644 if (last_spin_time + SPINNER_TIME < now) { 5645 update_progress(spin[spinval++ % 4]); 5646 last_spin_time = now; 5647 } 5648 spincheck = CHECK_SPINNER; 5649 } 5650 } 5651 5652 /* 5653 * Interate over any nested datasets. 5654 */ 5655 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5656 zfs_close(zhp); 5657 return (1); 5658 } 5659 5660 /* 5661 * Skip any datasets whose type does not match. 5662 */ 5663 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5664 zfs_close(zhp); 5665 return (0); 5666 } 5667 libzfs_add_handle(cbp, zhp); 5668 assert(cbp->cb_used <= cbp->cb_alloc); 5669 5670 return (0); 5671 } 5672 5673 static void 5674 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5675 { 5676 get_all_cb_t cb = { 0 }; 5677 cb.cb_verbose = verbose; 5678 cb.cb_getone = get_one_dataset; 5679 5680 if (verbose) 5681 set_progress_header(gettext("Reading ZFS config")); 5682 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5683 5684 *dslist = cb.cb_handles; 5685 *count = cb.cb_used; 5686 5687 if (verbose) 5688 finish_progress(gettext("done.")); 5689 } 5690 5691 /* 5692 * Generic callback for sharing or mounting filesystems. Because the code is so 5693 * similar, we have a common function with an extra parameter to determine which 5694 * mode we are using. 5695 */ 5696 #define OP_SHARE 0x1 5697 #define OP_MOUNT 0x2 5698 5699 /* 5700 * Share or mount a dataset. 5701 */ 5702 static int 5703 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5704 boolean_t explicit, const char *options) 5705 { 5706 char mountpoint[ZFS_MAXPROPLEN]; 5707 char shareopts[ZFS_MAXPROPLEN]; 5708 char smbshareopts[ZFS_MAXPROPLEN]; 5709 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5710 struct mnttab mnt; 5711 uint64_t zoned, canmount; 5712 boolean_t shared_nfs, shared_smb; 5713 5714 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5715 5716 /* 5717 * Check to make sure we can mount/share this dataset. If we 5718 * are in the global zone and the filesystem is exported to a 5719 * local zone, or if we are in a local zone and the 5720 * filesystem is not exported, then it is an error. 5721 */ 5722 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5723 5724 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5725 if (!explicit) 5726 return (0); 5727 5728 (void) fprintf(stderr, gettext("cannot %s '%s': " 5729 "dataset is exported to a local zone\n"), cmdname, 5730 zfs_get_name(zhp)); 5731 return (1); 5732 5733 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5734 if (!explicit) 5735 return (0); 5736 5737 (void) fprintf(stderr, gettext("cannot %s '%s': " 5738 "permission denied\n"), cmdname, 5739 zfs_get_name(zhp)); 5740 return (1); 5741 } 5742 5743 /* 5744 * Ignore any filesystems which don't apply to us. This 5745 * includes those with a legacy mountpoint, or those with 5746 * legacy share options. 5747 */ 5748 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5749 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5750 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5751 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5752 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5753 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5754 5755 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5756 strcmp(smbshareopts, "off") == 0) { 5757 if (!explicit) 5758 return (0); 5759 5760 (void) fprintf(stderr, gettext("cannot share '%s': " 5761 "legacy share\n"), zfs_get_name(zhp)); 5762 (void) fprintf(stderr, gettext("use share(1M) to " 5763 "share this filesystem, or set " 5764 "sharenfs property on\n")); 5765 return (1); 5766 } 5767 5768 /* 5769 * We cannot share or mount legacy filesystems. If the 5770 * shareopts is non-legacy but the mountpoint is legacy, we 5771 * treat it as a legacy share. 5772 */ 5773 if (strcmp(mountpoint, "legacy") == 0) { 5774 if (!explicit) 5775 return (0); 5776 5777 (void) fprintf(stderr, gettext("cannot %s '%s': " 5778 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5779 (void) fprintf(stderr, gettext("use %s(1M) to " 5780 "%s this filesystem\n"), cmdname, cmdname); 5781 return (1); 5782 } 5783 5784 if (strcmp(mountpoint, "none") == 0) { 5785 if (!explicit) 5786 return (0); 5787 5788 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5789 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5790 return (1); 5791 } 5792 5793 /* 5794 * canmount explicit outcome 5795 * on no pass through 5796 * on yes pass through 5797 * off no return 0 5798 * off yes display error, return 1 5799 * noauto no return 0 5800 * noauto yes pass through 5801 */ 5802 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5803 if (canmount == ZFS_CANMOUNT_OFF) { 5804 if (!explicit) 5805 return (0); 5806 5807 (void) fprintf(stderr, gettext("cannot %s '%s': " 5808 "'canmount' property is set to 'off'\n"), cmdname, 5809 zfs_get_name(zhp)); 5810 return (1); 5811 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5812 return (0); 5813 } 5814 5815 /* 5816 * If this filesystem is inconsistent and has a receive resume 5817 * token, we can not mount it. 5818 */ 5819 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5820 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5821 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5822 if (!explicit) 5823 return (0); 5824 5825 (void) fprintf(stderr, gettext("cannot %s '%s': " 5826 "Contains partially-completed state from " 5827 "\"zfs receive -r\", which can be resumed with " 5828 "\"zfs send -t\"\n"), 5829 cmdname, zfs_get_name(zhp)); 5830 return (1); 5831 } 5832 5833 /* 5834 * At this point, we have verified that the mountpoint and/or 5835 * shareopts are appropriate for auto management. If the 5836 * filesystem is already mounted or shared, return (failing 5837 * for explicit requests); otherwise mount or share the 5838 * filesystem. 5839 */ 5840 switch (op) { 5841 case OP_SHARE: 5842 5843 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5844 shared_smb = zfs_is_shared_smb(zhp, NULL); 5845 5846 if (shared_nfs && shared_smb || 5847 (shared_nfs && strcmp(shareopts, "on") == 0 && 5848 strcmp(smbshareopts, "off") == 0) || 5849 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5850 strcmp(shareopts, "off") == 0)) { 5851 if (!explicit) 5852 return (0); 5853 5854 (void) fprintf(stderr, gettext("cannot share " 5855 "'%s': filesystem already shared\n"), 5856 zfs_get_name(zhp)); 5857 return (1); 5858 } 5859 5860 if (!zfs_is_mounted(zhp, NULL) && 5861 zfs_mount(zhp, NULL, 0) != 0) 5862 return (1); 5863 5864 if (protocol == NULL) { 5865 if (zfs_shareall(zhp) != 0) 5866 return (1); 5867 } else if (strcmp(protocol, "nfs") == 0) { 5868 if (zfs_share_nfs(zhp)) 5869 return (1); 5870 } else if (strcmp(protocol, "smb") == 0) { 5871 if (zfs_share_smb(zhp)) 5872 return (1); 5873 } else { 5874 (void) fprintf(stderr, gettext("cannot share " 5875 "'%s': invalid share type '%s' " 5876 "specified\n"), 5877 zfs_get_name(zhp), protocol); 5878 return (1); 5879 } 5880 5881 break; 5882 5883 case OP_MOUNT: 5884 if (options == NULL) 5885 mnt.mnt_mntopts = ""; 5886 else 5887 mnt.mnt_mntopts = (char *)options; 5888 5889 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5890 zfs_is_mounted(zhp, NULL)) { 5891 if (!explicit) 5892 return (0); 5893 5894 (void) fprintf(stderr, gettext("cannot mount " 5895 "'%s': filesystem already mounted\n"), 5896 zfs_get_name(zhp)); 5897 return (1); 5898 } 5899 5900 if (zfs_mount(zhp, options, flags) != 0) 5901 return (1); 5902 break; 5903 } 5904 5905 return (0); 5906 } 5907 5908 /* 5909 * Reports progress in the form "(current/total)". Not thread-safe. 5910 */ 5911 static void 5912 report_mount_progress(int current, int total) 5913 { 5914 static time_t last_progress_time = 0; 5915 time_t now = time(NULL); 5916 char info[32]; 5917 5918 /* report 1..n instead of 0..n-1 */ 5919 ++current; 5920 5921 /* display header if we're here for the first time */ 5922 if (current == 1) { 5923 set_progress_header(gettext("Mounting ZFS filesystems")); 5924 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5925 /* too soon to report again */ 5926 return; 5927 } 5928 5929 last_progress_time = now; 5930 5931 (void) sprintf(info, "(%d/%d)", current, total); 5932 5933 if (current == total) 5934 finish_progress(info); 5935 else 5936 update_progress(info); 5937 } 5938 5939 static void 5940 append_options(char *mntopts, char *newopts) 5941 { 5942 int len = strlen(mntopts); 5943 5944 /* original length plus new string to append plus 1 for the comma */ 5945 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5946 (void) fprintf(stderr, gettext("the opts argument for " 5947 "'%c' option is too long (more than %d chars)\n"), 5948 "-o", MNT_LINE_MAX); 5949 usage(B_FALSE); 5950 } 5951 5952 if (*mntopts) 5953 mntopts[len++] = ','; 5954 5955 (void) strcpy(&mntopts[len], newopts); 5956 } 5957 5958 static int 5959 share_mount(int op, int argc, char **argv) 5960 { 5961 int do_all = 0; 5962 boolean_t verbose = B_FALSE; 5963 int c, ret = 0; 5964 char *options = NULL; 5965 int flags = 0; 5966 5967 /* check options */ 5968 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5969 != -1) { 5970 switch (c) { 5971 case 'a': 5972 do_all = 1; 5973 break; 5974 case 'v': 5975 verbose = B_TRUE; 5976 break; 5977 case 'o': 5978 if (*optarg == '\0') { 5979 (void) fprintf(stderr, gettext("empty mount " 5980 "options (-o) specified\n")); 5981 usage(B_FALSE); 5982 } 5983 5984 if (options == NULL) 5985 options = safe_malloc(MNT_LINE_MAX + 1); 5986 5987 /* option validation is done later */ 5988 append_options(options, optarg); 5989 break; 5990 5991 case 'O': 5992 flags |= MS_OVERLAY; 5993 break; 5994 case ':': 5995 (void) fprintf(stderr, gettext("missing argument for " 5996 "'%c' option\n"), optopt); 5997 usage(B_FALSE); 5998 break; 5999 case '?': 6000 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6001 optopt); 6002 usage(B_FALSE); 6003 } 6004 } 6005 6006 argc -= optind; 6007 argv += optind; 6008 6009 /* check number of arguments */ 6010 if (do_all) { 6011 zfs_handle_t **dslist = NULL; 6012 size_t i, count = 0; 6013 char *protocol = NULL; 6014 6015 if (op == OP_SHARE && argc > 0) { 6016 if (strcmp(argv[0], "nfs") != 0 && 6017 strcmp(argv[0], "smb") != 0) { 6018 (void) fprintf(stderr, gettext("share type " 6019 "must be 'nfs' or 'smb'\n")); 6020 usage(B_FALSE); 6021 } 6022 protocol = argv[0]; 6023 argc--; 6024 argv++; 6025 } 6026 6027 if (argc != 0) { 6028 (void) fprintf(stderr, gettext("too many arguments\n")); 6029 usage(B_FALSE); 6030 } 6031 6032 start_progress_timer(); 6033 get_all_datasets(&dslist, &count, verbose); 6034 6035 if (count == 0) 6036 return (0); 6037 6038 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6039 6040 for (i = 0; i < count; i++) { 6041 if (verbose) 6042 report_mount_progress(i, count); 6043 6044 if (share_mount_one(dslist[i], op, flags, protocol, 6045 B_FALSE, options) != 0) 6046 ret = 1; 6047 zfs_close(dslist[i]); 6048 } 6049 6050 free(dslist); 6051 } else if (argc == 0) { 6052 struct mnttab entry; 6053 6054 if ((op == OP_SHARE) || (options != NULL)) { 6055 (void) fprintf(stderr, gettext("missing filesystem " 6056 "argument (specify -a for all)\n")); 6057 usage(B_FALSE); 6058 } 6059 6060 /* 6061 * When mount is given no arguments, go through /etc/mnttab and 6062 * display any active ZFS mounts. We hide any snapshots, since 6063 * they are controlled automatically. 6064 */ 6065 rewind(mnttab_file); 6066 while (getmntent(mnttab_file, &entry) == 0) { 6067 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6068 strchr(entry.mnt_special, '@') != NULL) 6069 continue; 6070 6071 (void) printf("%-30s %s\n", entry.mnt_special, 6072 entry.mnt_mountp); 6073 } 6074 6075 } else { 6076 zfs_handle_t *zhp; 6077 6078 if (argc > 1) { 6079 (void) fprintf(stderr, 6080 gettext("too many arguments\n")); 6081 usage(B_FALSE); 6082 } 6083 6084 if ((zhp = zfs_open(g_zfs, argv[0], 6085 ZFS_TYPE_FILESYSTEM)) == NULL) { 6086 ret = 1; 6087 } else { 6088 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6089 options); 6090 zfs_close(zhp); 6091 } 6092 } 6093 6094 return (ret); 6095 } 6096 6097 /* 6098 * zfs mount -a [nfs] 6099 * zfs mount filesystem 6100 * 6101 * Mount all filesystems, or mount the given filesystem. 6102 */ 6103 static int 6104 zfs_do_mount(int argc, char **argv) 6105 { 6106 return (share_mount(OP_MOUNT, argc, argv)); 6107 } 6108 6109 /* 6110 * zfs share -a [nfs | smb] 6111 * zfs share filesystem 6112 * 6113 * Share all filesystems, or share the given filesystem. 6114 */ 6115 static int 6116 zfs_do_share(int argc, char **argv) 6117 { 6118 return (share_mount(OP_SHARE, argc, argv)); 6119 } 6120 6121 typedef struct unshare_unmount_node { 6122 zfs_handle_t *un_zhp; 6123 char *un_mountp; 6124 uu_avl_node_t un_avlnode; 6125 } unshare_unmount_node_t; 6126 6127 /* ARGSUSED */ 6128 static int 6129 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6130 { 6131 const unshare_unmount_node_t *l = larg; 6132 const unshare_unmount_node_t *r = rarg; 6133 6134 return (strcmp(l->un_mountp, r->un_mountp)); 6135 } 6136 6137 /* 6138 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6139 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6140 * and unmount it appropriately. 6141 */ 6142 static int 6143 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6144 { 6145 zfs_handle_t *zhp; 6146 int ret = 0; 6147 struct stat64 statbuf; 6148 struct extmnttab entry; 6149 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6150 ino_t path_inode; 6151 6152 /* 6153 * Search for the path in /etc/mnttab. Rather than looking for the 6154 * specific path, which can be fooled by non-standard paths (i.e. ".." 6155 * or "//"), we stat() the path and search for the corresponding 6156 * (major,minor) device pair. 6157 */ 6158 if (stat64(path, &statbuf) != 0) { 6159 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6160 cmdname, path, strerror(errno)); 6161 return (1); 6162 } 6163 path_inode = statbuf.st_ino; 6164 6165 /* 6166 * Search for the given (major,minor) pair in the mount table. 6167 */ 6168 rewind(mnttab_file); 6169 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6170 if (entry.mnt_major == major(statbuf.st_dev) && 6171 entry.mnt_minor == minor(statbuf.st_dev)) 6172 break; 6173 } 6174 if (ret != 0) { 6175 if (op == OP_SHARE) { 6176 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6177 "currently mounted\n"), cmdname, path); 6178 return (1); 6179 } 6180 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6181 path); 6182 if ((ret = umount2(path, flags)) != 0) 6183 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6184 strerror(errno)); 6185 return (ret != 0); 6186 } 6187 6188 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6189 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6190 "filesystem\n"), cmdname, path); 6191 return (1); 6192 } 6193 6194 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6195 ZFS_TYPE_FILESYSTEM)) == NULL) 6196 return (1); 6197 6198 ret = 1; 6199 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6200 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6201 cmdname, path, strerror(errno)); 6202 goto out; 6203 } else if (statbuf.st_ino != path_inode) { 6204 (void) fprintf(stderr, gettext("cannot " 6205 "%s '%s': not a mountpoint\n"), cmdname, path); 6206 goto out; 6207 } 6208 6209 if (op == OP_SHARE) { 6210 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6211 char smbshare_prop[ZFS_MAXPROPLEN]; 6212 6213 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6214 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6215 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6216 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6217 6218 if (strcmp(nfs_mnt_prop, "off") == 0 && 6219 strcmp(smbshare_prop, "off") == 0) { 6220 (void) fprintf(stderr, gettext("cannot unshare " 6221 "'%s': legacy share\n"), path); 6222 (void) fprintf(stderr, gettext("use " 6223 "unshare(1M) to unshare this filesystem\n")); 6224 } else if (!zfs_is_shared(zhp)) { 6225 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6226 "not currently shared\n"), path); 6227 } else { 6228 ret = zfs_unshareall_bypath(zhp, path); 6229 } 6230 } else { 6231 char mtpt_prop[ZFS_MAXPROPLEN]; 6232 6233 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6234 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6235 6236 if (is_manual) { 6237 ret = zfs_unmount(zhp, NULL, flags); 6238 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6239 (void) fprintf(stderr, gettext("cannot unmount " 6240 "'%s': legacy mountpoint\n"), 6241 zfs_get_name(zhp)); 6242 (void) fprintf(stderr, gettext("use umount(1M) " 6243 "to unmount this filesystem\n")); 6244 } else { 6245 ret = zfs_unmountall(zhp, flags); 6246 } 6247 } 6248 6249 out: 6250 zfs_close(zhp); 6251 6252 return (ret != 0); 6253 } 6254 6255 /* 6256 * Generic callback for unsharing or unmounting a filesystem. 6257 */ 6258 static int 6259 unshare_unmount(int op, int argc, char **argv) 6260 { 6261 int do_all = 0; 6262 int flags = 0; 6263 int ret = 0; 6264 int c; 6265 zfs_handle_t *zhp; 6266 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6267 char sharesmb[ZFS_MAXPROPLEN]; 6268 6269 /* check options */ 6270 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6271 switch (c) { 6272 case 'a': 6273 do_all = 1; 6274 break; 6275 case 'f': 6276 flags = MS_FORCE; 6277 break; 6278 case '?': 6279 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6280 optopt); 6281 usage(B_FALSE); 6282 } 6283 } 6284 6285 argc -= optind; 6286 argv += optind; 6287 6288 if (do_all) { 6289 /* 6290 * We could make use of zfs_for_each() to walk all datasets in 6291 * the system, but this would be very inefficient, especially 6292 * since we would have to linearly search /etc/mnttab for each 6293 * one. Instead, do one pass through /etc/mnttab looking for 6294 * zfs entries and call zfs_unmount() for each one. 6295 * 6296 * Things get a little tricky if the administrator has created 6297 * mountpoints beneath other ZFS filesystems. In this case, we 6298 * have to unmount the deepest filesystems first. To accomplish 6299 * this, we place all the mountpoints in an AVL tree sorted by 6300 * the special type (dataset name), and walk the result in 6301 * reverse to make sure to get any snapshots first. 6302 */ 6303 struct mnttab entry; 6304 uu_avl_pool_t *pool; 6305 uu_avl_t *tree; 6306 unshare_unmount_node_t *node; 6307 uu_avl_index_t idx; 6308 uu_avl_walk_t *walk; 6309 6310 if (argc != 0) { 6311 (void) fprintf(stderr, gettext("too many arguments\n")); 6312 usage(B_FALSE); 6313 } 6314 6315 if (((pool = uu_avl_pool_create("unmount_pool", 6316 sizeof (unshare_unmount_node_t), 6317 offsetof(unshare_unmount_node_t, un_avlnode), 6318 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6319 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6320 nomem(); 6321 6322 rewind(mnttab_file); 6323 while (getmntent(mnttab_file, &entry) == 0) { 6324 6325 /* ignore non-ZFS entries */ 6326 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6327 continue; 6328 6329 /* ignore snapshots */ 6330 if (strchr(entry.mnt_special, '@') != NULL) 6331 continue; 6332 6333 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6334 ZFS_TYPE_FILESYSTEM)) == NULL) { 6335 ret = 1; 6336 continue; 6337 } 6338 6339 switch (op) { 6340 case OP_SHARE: 6341 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6342 nfs_mnt_prop, 6343 sizeof (nfs_mnt_prop), 6344 NULL, NULL, 0, B_FALSE) == 0); 6345 if (strcmp(nfs_mnt_prop, "off") != 0) 6346 break; 6347 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6348 nfs_mnt_prop, 6349 sizeof (nfs_mnt_prop), 6350 NULL, NULL, 0, B_FALSE) == 0); 6351 if (strcmp(nfs_mnt_prop, "off") == 0) 6352 continue; 6353 break; 6354 case OP_MOUNT: 6355 /* Ignore legacy mounts */ 6356 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6357 nfs_mnt_prop, 6358 sizeof (nfs_mnt_prop), 6359 NULL, NULL, 0, B_FALSE) == 0); 6360 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6361 continue; 6362 /* Ignore canmount=noauto mounts */ 6363 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6364 ZFS_CANMOUNT_NOAUTO) 6365 continue; 6366 default: 6367 break; 6368 } 6369 6370 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6371 node->un_zhp = zhp; 6372 node->un_mountp = safe_strdup(entry.mnt_mountp); 6373 6374 uu_avl_node_init(node, &node->un_avlnode, pool); 6375 6376 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6377 uu_avl_insert(tree, node, idx); 6378 } else { 6379 zfs_close(node->un_zhp); 6380 free(node->un_mountp); 6381 free(node); 6382 } 6383 } 6384 6385 /* 6386 * Walk the AVL tree in reverse, unmounting each filesystem and 6387 * removing it from the AVL tree in the process. 6388 */ 6389 if ((walk = uu_avl_walk_start(tree, 6390 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6391 nomem(); 6392 6393 while ((node = uu_avl_walk_next(walk)) != NULL) { 6394 uu_avl_remove(tree, node); 6395 6396 switch (op) { 6397 case OP_SHARE: 6398 if (zfs_unshareall_bypath(node->un_zhp, 6399 node->un_mountp) != 0) 6400 ret = 1; 6401 break; 6402 6403 case OP_MOUNT: 6404 if (zfs_unmount(node->un_zhp, 6405 node->un_mountp, flags) != 0) 6406 ret = 1; 6407 break; 6408 } 6409 6410 zfs_close(node->un_zhp); 6411 free(node->un_mountp); 6412 free(node); 6413 } 6414 6415 uu_avl_walk_end(walk); 6416 uu_avl_destroy(tree); 6417 uu_avl_pool_destroy(pool); 6418 6419 } else { 6420 if (argc != 1) { 6421 if (argc == 0) 6422 (void) fprintf(stderr, 6423 gettext("missing filesystem argument\n")); 6424 else 6425 (void) fprintf(stderr, 6426 gettext("too many arguments\n")); 6427 usage(B_FALSE); 6428 } 6429 6430 /* 6431 * We have an argument, but it may be a full path or a ZFS 6432 * filesystem. Pass full paths off to unmount_path() (shared by 6433 * manual_unmount), otherwise open the filesystem and pass to 6434 * zfs_unmount(). 6435 */ 6436 if (argv[0][0] == '/') 6437 return (unshare_unmount_path(op, argv[0], 6438 flags, B_FALSE)); 6439 6440 if ((zhp = zfs_open(g_zfs, argv[0], 6441 ZFS_TYPE_FILESYSTEM)) == NULL) 6442 return (1); 6443 6444 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6445 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6446 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6447 NULL, 0, B_FALSE) == 0); 6448 6449 switch (op) { 6450 case OP_SHARE: 6451 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6452 nfs_mnt_prop, 6453 sizeof (nfs_mnt_prop), 6454 NULL, NULL, 0, B_FALSE) == 0); 6455 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6456 sharesmb, sizeof (sharesmb), NULL, NULL, 6457 0, B_FALSE) == 0); 6458 6459 if (strcmp(nfs_mnt_prop, "off") == 0 && 6460 strcmp(sharesmb, "off") == 0) { 6461 (void) fprintf(stderr, gettext("cannot " 6462 "unshare '%s': legacy share\n"), 6463 zfs_get_name(zhp)); 6464 (void) fprintf(stderr, gettext("use " 6465 "unshare(1M) to unshare this " 6466 "filesystem\n")); 6467 ret = 1; 6468 } else if (!zfs_is_shared(zhp)) { 6469 (void) fprintf(stderr, gettext("cannot " 6470 "unshare '%s': not currently " 6471 "shared\n"), zfs_get_name(zhp)); 6472 ret = 1; 6473 } else if (zfs_unshareall(zhp) != 0) { 6474 ret = 1; 6475 } 6476 break; 6477 6478 case OP_MOUNT: 6479 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6480 (void) fprintf(stderr, gettext("cannot " 6481 "unmount '%s': legacy " 6482 "mountpoint\n"), zfs_get_name(zhp)); 6483 (void) fprintf(stderr, gettext("use " 6484 "umount(1M) to unmount this " 6485 "filesystem\n")); 6486 ret = 1; 6487 } else if (!zfs_is_mounted(zhp, NULL)) { 6488 (void) fprintf(stderr, gettext("cannot " 6489 "unmount '%s': not currently " 6490 "mounted\n"), 6491 zfs_get_name(zhp)); 6492 ret = 1; 6493 } else if (zfs_unmountall(zhp, flags) != 0) { 6494 ret = 1; 6495 } 6496 break; 6497 } 6498 6499 zfs_close(zhp); 6500 } 6501 6502 return (ret); 6503 } 6504 6505 /* 6506 * zfs unmount -a 6507 * zfs unmount filesystem 6508 * 6509 * Unmount all filesystems, or a specific ZFS filesystem. 6510 */ 6511 static int 6512 zfs_do_unmount(int argc, char **argv) 6513 { 6514 return (unshare_unmount(OP_MOUNT, argc, argv)); 6515 } 6516 6517 /* 6518 * zfs unshare -a 6519 * zfs unshare filesystem 6520 * 6521 * Unshare all filesystems, or a specific ZFS filesystem. 6522 */ 6523 static int 6524 zfs_do_unshare(int argc, char **argv) 6525 { 6526 return (unshare_unmount(OP_SHARE, argc, argv)); 6527 } 6528 6529 /* 6530 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6531 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6532 */ 6533 static int 6534 manual_mount(int argc, char **argv) 6535 { 6536 zfs_handle_t *zhp; 6537 char mountpoint[ZFS_MAXPROPLEN]; 6538 char mntopts[MNT_LINE_MAX] = { '\0' }; 6539 int ret = 0; 6540 int c; 6541 int flags = 0; 6542 char *dataset, *path; 6543 6544 /* check options */ 6545 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6546 switch (c) { 6547 case 'o': 6548 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6549 break; 6550 case 'O': 6551 flags |= MS_OVERLAY; 6552 break; 6553 case 'm': 6554 flags |= MS_NOMNTTAB; 6555 break; 6556 case ':': 6557 (void) fprintf(stderr, gettext("missing argument for " 6558 "'%c' option\n"), optopt); 6559 usage(B_FALSE); 6560 break; 6561 case '?': 6562 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6563 optopt); 6564 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6565 "<path>\n")); 6566 return (2); 6567 } 6568 } 6569 6570 argc -= optind; 6571 argv += optind; 6572 6573 /* check that we only have two arguments */ 6574 if (argc != 2) { 6575 if (argc == 0) 6576 (void) fprintf(stderr, gettext("missing dataset " 6577 "argument\n")); 6578 else if (argc == 1) 6579 (void) fprintf(stderr, 6580 gettext("missing mountpoint argument\n")); 6581 else 6582 (void) fprintf(stderr, gettext("too many arguments\n")); 6583 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6584 return (2); 6585 } 6586 6587 dataset = argv[0]; 6588 path = argv[1]; 6589 6590 /* try to open the dataset */ 6591 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6592 return (1); 6593 6594 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6595 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6596 6597 /* check for legacy mountpoint and complain appropriately */ 6598 ret = 0; 6599 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6600 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6601 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6602 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6603 strerror(errno)); 6604 ret = 1; 6605 } 6606 } else { 6607 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6608 "mounted using 'mount -F zfs'\n"), dataset); 6609 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6610 "instead.\n"), path); 6611 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6612 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6613 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6614 "information.\n")); 6615 ret = 1; 6616 } 6617 6618 return (ret); 6619 } 6620 6621 /* 6622 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6623 * unmounts of non-legacy filesystems, as this is the dominant administrative 6624 * interface. 6625 */ 6626 static int 6627 manual_unmount(int argc, char **argv) 6628 { 6629 int flags = 0; 6630 int c; 6631 6632 /* check options */ 6633 while ((c = getopt(argc, argv, "f")) != -1) { 6634 switch (c) { 6635 case 'f': 6636 flags = MS_FORCE; 6637 break; 6638 case '?': 6639 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6640 optopt); 6641 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6642 "<path>\n")); 6643 return (2); 6644 } 6645 } 6646 6647 argc -= optind; 6648 argv += optind; 6649 6650 /* check arguments */ 6651 if (argc != 1) { 6652 if (argc == 0) 6653 (void) fprintf(stderr, gettext("missing path " 6654 "argument\n")); 6655 else 6656 (void) fprintf(stderr, gettext("too many arguments\n")); 6657 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6658 return (2); 6659 } 6660 6661 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6662 } 6663 6664 static int 6665 find_command_idx(char *command, int *idx) 6666 { 6667 int i; 6668 6669 for (i = 0; i < NCOMMAND; i++) { 6670 if (command_table[i].name == NULL) 6671 continue; 6672 6673 if (strcmp(command, command_table[i].name) == 0) { 6674 *idx = i; 6675 return (0); 6676 } 6677 } 6678 return (1); 6679 } 6680 6681 static int 6682 zfs_do_diff(int argc, char **argv) 6683 { 6684 zfs_handle_t *zhp; 6685 int flags = 0; 6686 char *tosnap = NULL; 6687 char *fromsnap = NULL; 6688 char *atp, *copy; 6689 int err = 0; 6690 int c; 6691 6692 while ((c = getopt(argc, argv, "FHt")) != -1) { 6693 switch (c) { 6694 case 'F': 6695 flags |= ZFS_DIFF_CLASSIFY; 6696 break; 6697 case 'H': 6698 flags |= ZFS_DIFF_PARSEABLE; 6699 break; 6700 case 't': 6701 flags |= ZFS_DIFF_TIMESTAMP; 6702 break; 6703 default: 6704 (void) fprintf(stderr, 6705 gettext("invalid option '%c'\n"), optopt); 6706 usage(B_FALSE); 6707 } 6708 } 6709 6710 argc -= optind; 6711 argv += optind; 6712 6713 if (argc < 1) { 6714 (void) fprintf(stderr, 6715 gettext("must provide at least one snapshot name\n")); 6716 usage(B_FALSE); 6717 } 6718 6719 if (argc > 2) { 6720 (void) fprintf(stderr, gettext("too many arguments\n")); 6721 usage(B_FALSE); 6722 } 6723 6724 fromsnap = argv[0]; 6725 tosnap = (argc == 2) ? argv[1] : NULL; 6726 6727 copy = NULL; 6728 if (*fromsnap != '@') 6729 copy = strdup(fromsnap); 6730 else if (tosnap) 6731 copy = strdup(tosnap); 6732 if (copy == NULL) 6733 usage(B_FALSE); 6734 6735 if (atp = strchr(copy, '@')) 6736 *atp = '\0'; 6737 6738 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6739 return (1); 6740 6741 free(copy); 6742 6743 /* 6744 * Ignore SIGPIPE so that the library can give us 6745 * information on any failure 6746 */ 6747 (void) sigignore(SIGPIPE); 6748 6749 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6750 6751 zfs_close(zhp); 6752 6753 return (err != 0); 6754 } 6755 6756 /* 6757 * zfs bookmark <fs@snap> <fs#bmark> 6758 * 6759 * Creates a bookmark with the given name from the given snapshot. 6760 */ 6761 static int 6762 zfs_do_bookmark(int argc, char **argv) 6763 { 6764 char snapname[ZFS_MAXNAMELEN]; 6765 zfs_handle_t *zhp; 6766 nvlist_t *nvl; 6767 int ret = 0; 6768 int c; 6769 6770 /* check options */ 6771 while ((c = getopt(argc, argv, "")) != -1) { 6772 switch (c) { 6773 case '?': 6774 (void) fprintf(stderr, 6775 gettext("invalid option '%c'\n"), optopt); 6776 goto usage; 6777 } 6778 } 6779 6780 argc -= optind; 6781 argv += optind; 6782 6783 /* check number of arguments */ 6784 if (argc < 1) { 6785 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6786 goto usage; 6787 } 6788 if (argc < 2) { 6789 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6790 goto usage; 6791 } 6792 6793 if (strchr(argv[1], '#') == NULL) { 6794 (void) fprintf(stderr, 6795 gettext("invalid bookmark name '%s' -- " 6796 "must contain a '#'\n"), argv[1]); 6797 goto usage; 6798 } 6799 6800 if (argv[0][0] == '@') { 6801 /* 6802 * Snapshot name begins with @. 6803 * Default to same fs as bookmark. 6804 */ 6805 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6806 *strchr(snapname, '#') = '\0'; 6807 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6808 } else { 6809 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6810 } 6811 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6812 if (zhp == NULL) 6813 goto usage; 6814 zfs_close(zhp); 6815 6816 6817 nvl = fnvlist_alloc(); 6818 fnvlist_add_string(nvl, argv[1], snapname); 6819 ret = lzc_bookmark(nvl, NULL); 6820 fnvlist_free(nvl); 6821 6822 if (ret != 0) { 6823 const char *err_msg; 6824 char errbuf[1024]; 6825 6826 (void) snprintf(errbuf, sizeof (errbuf), 6827 dgettext(TEXT_DOMAIN, 6828 "cannot create bookmark '%s'"), argv[1]); 6829 6830 switch (ret) { 6831 case EXDEV: 6832 err_msg = "bookmark is in a different pool"; 6833 break; 6834 case EEXIST: 6835 err_msg = "bookmark exists"; 6836 break; 6837 case EINVAL: 6838 err_msg = "invalid argument"; 6839 break; 6840 case ENOTSUP: 6841 err_msg = "bookmark feature not enabled"; 6842 break; 6843 case ENOSPC: 6844 err_msg = "out of space"; 6845 break; 6846 default: 6847 err_msg = "unknown error"; 6848 break; 6849 } 6850 (void) fprintf(stderr, "%s: %s\n", errbuf, 6851 dgettext(TEXT_DOMAIN, err_msg)); 6852 } 6853 6854 return (ret != 0); 6855 6856 usage: 6857 usage(B_FALSE); 6858 return (-1); 6859 } 6860 6861 int 6862 main(int argc, char **argv) 6863 { 6864 int ret = 0; 6865 int i; 6866 char *progname; 6867 char *cmdname; 6868 6869 (void) setlocale(LC_ALL, ""); 6870 (void) textdomain(TEXT_DOMAIN); 6871 6872 opterr = 0; 6873 6874 if ((g_zfs = libzfs_init()) == NULL) { 6875 (void) fprintf(stderr, gettext("internal error: failed to " 6876 "initialize ZFS library\n")); 6877 return (1); 6878 } 6879 6880 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6881 6882 libzfs_print_on_error(g_zfs, B_TRUE); 6883 6884 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6885 (void) fprintf(stderr, gettext("internal error: unable to " 6886 "open %s\n"), MNTTAB); 6887 return (1); 6888 } 6889 6890 /* 6891 * This command also doubles as the /etc/fs mount and unmount program. 6892 * Determine if we should take this behavior based on argv[0]. 6893 */ 6894 progname = basename(argv[0]); 6895 if (strcmp(progname, "mount") == 0) { 6896 ret = manual_mount(argc, argv); 6897 } else if (strcmp(progname, "umount") == 0) { 6898 ret = manual_unmount(argc, argv); 6899 } else { 6900 /* 6901 * Make sure the user has specified some command. 6902 */ 6903 if (argc < 2) { 6904 (void) fprintf(stderr, gettext("missing command\n")); 6905 usage(B_FALSE); 6906 } 6907 6908 cmdname = argv[1]; 6909 6910 /* 6911 * The 'umount' command is an alias for 'unmount' 6912 */ 6913 if (strcmp(cmdname, "umount") == 0) 6914 cmdname = "unmount"; 6915 6916 /* 6917 * The 'recv' command is an alias for 'receive' 6918 */ 6919 if (strcmp(cmdname, "recv") == 0) 6920 cmdname = "receive"; 6921 6922 /* 6923 * The 'snap' command is an alias for 'snapshot' 6924 */ 6925 if (strcmp(cmdname, "snap") == 0) 6926 cmdname = "snapshot"; 6927 6928 /* 6929 * Special case '-?' 6930 */ 6931 if (strcmp(cmdname, "-?") == 0) 6932 usage(B_TRUE); 6933 6934 /* 6935 * Run the appropriate command. 6936 */ 6937 libzfs_mnttab_cache(g_zfs, B_TRUE); 6938 if (find_command_idx(cmdname, &i) == 0) { 6939 current_command = &command_table[i]; 6940 ret = command_table[i].func(argc - 1, argv + 1); 6941 } else if (strchr(cmdname, '=') != NULL) { 6942 verify(find_command_idx("set", &i) == 0); 6943 current_command = &command_table[i]; 6944 ret = command_table[i].func(argc, argv); 6945 } else { 6946 (void) fprintf(stderr, gettext("unrecognized " 6947 "command '%s'\n"), cmdname); 6948 usage(B_FALSE); 6949 } 6950 libzfs_mnttab_cache(g_zfs, B_FALSE); 6951 } 6952 6953 (void) fclose(mnttab_file); 6954 6955 if (ret == 0 && log_history) 6956 (void) zpool_log_history(g_zfs, history_str); 6957 6958 libzfs_fini(g_zfs); 6959 6960 /* 6961 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6962 * for the purposes of running ::findleaks. 6963 */ 6964 if (getenv("ZFS_ABORT") != NULL) { 6965 (void) printf("dumping core by request\n"); 6966 abort(); 6967 } 6968 6969 return (ret); 6970 } 6971