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 * Check if the dataset is mountable and should be automatically mounted. 586 */ 587 static boolean_t 588 should_auto_mount(zfs_handle_t *zhp) 589 { 590 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 591 return (B_FALSE); 592 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 593 } 594 595 /* 596 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 597 * 598 * Given an existing dataset, create a writable copy whose initial contents 599 * are the same as the source. The newly created dataset maintains a 600 * dependency on the original; the original cannot be destroyed so long as 601 * the clone exists. 602 * 603 * The '-p' flag creates all the non-existing ancestors of the target first. 604 */ 605 static int 606 zfs_do_clone(int argc, char **argv) 607 { 608 zfs_handle_t *zhp = NULL; 609 boolean_t parents = B_FALSE; 610 nvlist_t *props; 611 int ret = 0; 612 int c; 613 614 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 615 nomem(); 616 617 /* check options */ 618 while ((c = getopt(argc, argv, "o:p")) != -1) { 619 switch (c) { 620 case 'o': 621 if (parseprop(props, optarg) != 0) 622 return (1); 623 break; 624 case 'p': 625 parents = B_TRUE; 626 break; 627 case '?': 628 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 629 optopt); 630 goto usage; 631 } 632 } 633 634 argc -= optind; 635 argv += optind; 636 637 /* check number of arguments */ 638 if (argc < 1) { 639 (void) fprintf(stderr, gettext("missing source dataset " 640 "argument\n")); 641 goto usage; 642 } 643 if (argc < 2) { 644 (void) fprintf(stderr, gettext("missing target dataset " 645 "argument\n")); 646 goto usage; 647 } 648 if (argc > 2) { 649 (void) fprintf(stderr, gettext("too many arguments\n")); 650 goto usage; 651 } 652 653 /* open the source dataset */ 654 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 655 return (1); 656 657 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 658 ZFS_TYPE_VOLUME)) { 659 /* 660 * Now create the ancestors of the target dataset. If the 661 * target already exists and '-p' option was used we should not 662 * complain. 663 */ 664 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 665 ZFS_TYPE_VOLUME)) 666 return (0); 667 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 668 return (1); 669 } 670 671 /* pass to libzfs */ 672 ret = zfs_clone(zhp, argv[1], props); 673 674 /* create the mountpoint if necessary */ 675 if (ret == 0) { 676 zfs_handle_t *clone; 677 678 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 679 if (clone != NULL) { 680 /* 681 * If the user doesn't want the dataset 682 * automatically mounted, then skip the mount/share 683 * step. 684 */ 685 if (should_auto_mount(clone)) { 686 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 687 (void) fprintf(stderr, gettext("clone " 688 "successfully created, " 689 "but not mounted\n")); 690 } else if ((ret = zfs_share(clone)) != 0) { 691 (void) fprintf(stderr, gettext("clone " 692 "successfully created, " 693 "but not shared\n")); 694 } 695 } 696 zfs_close(clone); 697 } 698 } 699 700 zfs_close(zhp); 701 nvlist_free(props); 702 703 return (!!ret); 704 705 usage: 706 if (zhp) 707 zfs_close(zhp); 708 nvlist_free(props); 709 usage(B_FALSE); 710 return (-1); 711 } 712 713 /* 714 * zfs create [-p] [-o prop=value] ... fs 715 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 716 * 717 * Create a new dataset. This command can be used to create filesystems 718 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 719 * For volumes, the user must specify a size to be used. 720 * 721 * The '-s' flag applies only to volumes, and indicates that we should not try 722 * to set the reservation for this volume. By default we set a reservation 723 * equal to the size for any volume. For pools with SPA_VERSION >= 724 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 725 * 726 * The '-p' flag creates all the non-existing ancestors of the target first. 727 */ 728 static int 729 zfs_do_create(int argc, char **argv) 730 { 731 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 732 zfs_handle_t *zhp = NULL; 733 uint64_t volsize; 734 int c; 735 boolean_t noreserve = B_FALSE; 736 boolean_t bflag = B_FALSE; 737 boolean_t parents = B_FALSE; 738 int ret = 1; 739 nvlist_t *props; 740 uint64_t intval; 741 742 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 743 nomem(); 744 745 /* check options */ 746 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 747 switch (c) { 748 case 'V': 749 type = ZFS_TYPE_VOLUME; 750 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 751 (void) fprintf(stderr, gettext("bad volume " 752 "size '%s': %s\n"), optarg, 753 libzfs_error_description(g_zfs)); 754 goto error; 755 } 756 757 if (nvlist_add_uint64(props, 758 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 759 nomem(); 760 volsize = intval; 761 break; 762 case 'p': 763 parents = B_TRUE; 764 break; 765 case 'b': 766 bflag = B_TRUE; 767 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 768 (void) fprintf(stderr, gettext("bad volume " 769 "block size '%s': %s\n"), optarg, 770 libzfs_error_description(g_zfs)); 771 goto error; 772 } 773 774 if (nvlist_add_uint64(props, 775 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 776 intval) != 0) 777 nomem(); 778 break; 779 case 'o': 780 if (parseprop(props, optarg) != 0) 781 goto error; 782 break; 783 case 's': 784 noreserve = B_TRUE; 785 break; 786 case ':': 787 (void) fprintf(stderr, gettext("missing size " 788 "argument\n")); 789 goto badusage; 790 case '?': 791 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 792 optopt); 793 goto badusage; 794 } 795 } 796 797 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 798 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 799 "used when creating a volume\n")); 800 goto badusage; 801 } 802 803 argc -= optind; 804 argv += optind; 805 806 /* check number of arguments */ 807 if (argc == 0) { 808 (void) fprintf(stderr, gettext("missing %s argument\n"), 809 zfs_type_to_name(type)); 810 goto badusage; 811 } 812 if (argc > 1) { 813 (void) fprintf(stderr, gettext("too many arguments\n")); 814 goto badusage; 815 } 816 817 if (type == ZFS_TYPE_VOLUME && !noreserve) { 818 zpool_handle_t *zpool_handle; 819 nvlist_t *real_props; 820 uint64_t spa_version; 821 char *p; 822 zfs_prop_t resv_prop; 823 char *strval; 824 char msg[1024]; 825 826 if (p = strchr(argv[0], '/')) 827 *p = '\0'; 828 zpool_handle = zpool_open(g_zfs, argv[0]); 829 if (p != NULL) 830 *p = '/'; 831 if (zpool_handle == NULL) 832 goto error; 833 spa_version = zpool_get_prop_int(zpool_handle, 834 ZPOOL_PROP_VERSION, NULL); 835 if (spa_version >= SPA_VERSION_REFRESERVATION) 836 resv_prop = ZFS_PROP_REFRESERVATION; 837 else 838 resv_prop = ZFS_PROP_RESERVATION; 839 840 (void) snprintf(msg, sizeof (msg), 841 gettext("cannot create '%s'"), argv[0]); 842 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 843 props, 0, NULL, zpool_handle, msg)) == NULL) { 844 zpool_close(zpool_handle); 845 goto error; 846 } 847 zpool_close(zpool_handle); 848 849 volsize = zvol_volsize_to_reservation(volsize, real_props); 850 nvlist_free(real_props); 851 852 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 853 &strval) != 0) { 854 if (nvlist_add_uint64(props, 855 zfs_prop_to_name(resv_prop), volsize) != 0) { 856 nvlist_free(props); 857 nomem(); 858 } 859 } 860 } 861 862 if (parents && zfs_name_valid(argv[0], type)) { 863 /* 864 * Now create the ancestors of target dataset. If the target 865 * already exists and '-p' option was used we should not 866 * complain. 867 */ 868 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 869 ret = 0; 870 goto error; 871 } 872 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 873 goto error; 874 } 875 876 /* pass to libzfs */ 877 if (zfs_create(g_zfs, argv[0], type, props) != 0) 878 goto error; 879 880 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 881 goto error; 882 883 ret = 0; 884 885 /* 886 * Mount and/or share the new filesystem as appropriate. We provide a 887 * verbose error message to let the user know that their filesystem was 888 * in fact created, even if we failed to mount or share it. 889 * If the user doesn't want the dataset automatically mounted, 890 * then skip the mount/share step altogether. 891 */ 892 if (should_auto_mount(zhp)) { 893 if (zfs_mount(zhp, NULL, 0) != 0) { 894 (void) fprintf(stderr, gettext("filesystem " 895 "successfully created, but not mounted\n")); 896 ret = 1; 897 } else if (zfs_share(zhp) != 0) { 898 (void) fprintf(stderr, gettext("filesystem " 899 "successfully created, but not shared\n")); 900 ret = 1; 901 } 902 } 903 904 error: 905 if (zhp) 906 zfs_close(zhp); 907 nvlist_free(props); 908 return (ret); 909 badusage: 910 nvlist_free(props); 911 usage(B_FALSE); 912 return (2); 913 } 914 915 /* 916 * zfs destroy [-rRf] <fs, vol> 917 * zfs destroy [-rRd] <snap> 918 * 919 * -r Recursively destroy all children 920 * -R Recursively destroy all dependents, including clones 921 * -f Force unmounting of any dependents 922 * -d If we can't destroy now, mark for deferred destruction 923 * 924 * Destroys the given dataset. By default, it will unmount any filesystems, 925 * and refuse to destroy a dataset that has any dependents. A dependent can 926 * either be a child, or a clone of a child. 927 */ 928 typedef struct destroy_cbdata { 929 boolean_t cb_first; 930 boolean_t cb_force; 931 boolean_t cb_recurse; 932 boolean_t cb_error; 933 boolean_t cb_doclones; 934 zfs_handle_t *cb_target; 935 boolean_t cb_defer_destroy; 936 boolean_t cb_verbose; 937 boolean_t cb_parsable; 938 boolean_t cb_dryrun; 939 nvlist_t *cb_nvl; 940 nvlist_t *cb_batchedsnaps; 941 942 /* first snap in contiguous run */ 943 char *cb_firstsnap; 944 /* previous snap in contiguous run */ 945 char *cb_prevsnap; 946 int64_t cb_snapused; 947 char *cb_snapspec; 948 char *cb_bookmark; 949 } destroy_cbdata_t; 950 951 /* 952 * Check for any dependents based on the '-r' or '-R' flags. 953 */ 954 static int 955 destroy_check_dependent(zfs_handle_t *zhp, void *data) 956 { 957 destroy_cbdata_t *cbp = data; 958 const char *tname = zfs_get_name(cbp->cb_target); 959 const char *name = zfs_get_name(zhp); 960 961 if (strncmp(tname, name, strlen(tname)) == 0 && 962 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 963 /* 964 * This is a direct descendant, not a clone somewhere else in 965 * the hierarchy. 966 */ 967 if (cbp->cb_recurse) 968 goto out; 969 970 if (cbp->cb_first) { 971 (void) fprintf(stderr, gettext("cannot destroy '%s': " 972 "%s has children\n"), 973 zfs_get_name(cbp->cb_target), 974 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 975 (void) fprintf(stderr, gettext("use '-r' to destroy " 976 "the following datasets:\n")); 977 cbp->cb_first = B_FALSE; 978 cbp->cb_error = B_TRUE; 979 } 980 981 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 982 } else { 983 /* 984 * This is a clone. We only want to report this if the '-r' 985 * wasn't specified, or the target is a snapshot. 986 */ 987 if (!cbp->cb_recurse && 988 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 989 goto out; 990 991 if (cbp->cb_first) { 992 (void) fprintf(stderr, gettext("cannot destroy '%s': " 993 "%s has dependent clones\n"), 994 zfs_get_name(cbp->cb_target), 995 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 996 (void) fprintf(stderr, gettext("use '-R' to destroy " 997 "the following datasets:\n")); 998 cbp->cb_first = B_FALSE; 999 cbp->cb_error = B_TRUE; 1000 cbp->cb_dryrun = B_TRUE; 1001 } 1002 1003 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1004 } 1005 1006 out: 1007 zfs_close(zhp); 1008 return (0); 1009 } 1010 1011 static int 1012 destroy_callback(zfs_handle_t *zhp, void *data) 1013 { 1014 destroy_cbdata_t *cb = data; 1015 const char *name = zfs_get_name(zhp); 1016 1017 if (cb->cb_verbose) { 1018 if (cb->cb_parsable) { 1019 (void) printf("destroy\t%s\n", name); 1020 } else if (cb->cb_dryrun) { 1021 (void) printf(gettext("would destroy %s\n"), 1022 name); 1023 } else { 1024 (void) printf(gettext("will destroy %s\n"), 1025 name); 1026 } 1027 } 1028 1029 /* 1030 * Ignore pools (which we've already flagged as an error before getting 1031 * here). 1032 */ 1033 if (strchr(zfs_get_name(zhp), '/') == NULL && 1034 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1035 zfs_close(zhp); 1036 return (0); 1037 } 1038 if (cb->cb_dryrun) { 1039 zfs_close(zhp); 1040 return (0); 1041 } 1042 1043 /* 1044 * We batch up all contiguous snapshots (even of different 1045 * filesystems) and destroy them with one ioctl. We can't 1046 * simply do all snap deletions and then all fs deletions, 1047 * because we must delete a clone before its origin. 1048 */ 1049 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1050 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1051 } else { 1052 int error = zfs_destroy_snaps_nvl(g_zfs, 1053 cb->cb_batchedsnaps, B_FALSE); 1054 fnvlist_free(cb->cb_batchedsnaps); 1055 cb->cb_batchedsnaps = fnvlist_alloc(); 1056 1057 if (error != 0 || 1058 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1059 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1060 zfs_close(zhp); 1061 return (-1); 1062 } 1063 } 1064 1065 zfs_close(zhp); 1066 return (0); 1067 } 1068 1069 static int 1070 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1071 { 1072 destroy_cbdata_t *cb = arg; 1073 const char *name = zfs_get_name(zhp); 1074 int err = 0; 1075 1076 if (nvlist_exists(cb->cb_nvl, name)) { 1077 if (cb->cb_firstsnap == NULL) 1078 cb->cb_firstsnap = strdup(name); 1079 if (cb->cb_prevsnap != NULL) 1080 free(cb->cb_prevsnap); 1081 /* this snap continues the current range */ 1082 cb->cb_prevsnap = strdup(name); 1083 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1084 nomem(); 1085 if (cb->cb_verbose) { 1086 if (cb->cb_parsable) { 1087 (void) printf("destroy\t%s\n", name); 1088 } else if (cb->cb_dryrun) { 1089 (void) printf(gettext("would destroy %s\n"), 1090 name); 1091 } else { 1092 (void) printf(gettext("will destroy %s\n"), 1093 name); 1094 } 1095 } 1096 } else if (cb->cb_firstsnap != NULL) { 1097 /* end of this range */ 1098 uint64_t used = 0; 1099 err = lzc_snaprange_space(cb->cb_firstsnap, 1100 cb->cb_prevsnap, &used); 1101 cb->cb_snapused += used; 1102 free(cb->cb_firstsnap); 1103 cb->cb_firstsnap = NULL; 1104 free(cb->cb_prevsnap); 1105 cb->cb_prevsnap = NULL; 1106 } 1107 zfs_close(zhp); 1108 return (err); 1109 } 1110 1111 static int 1112 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1113 { 1114 int err = 0; 1115 assert(cb->cb_firstsnap == NULL); 1116 assert(cb->cb_prevsnap == NULL); 1117 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1118 if (cb->cb_firstsnap != NULL) { 1119 uint64_t used = 0; 1120 if (err == 0) { 1121 err = lzc_snaprange_space(cb->cb_firstsnap, 1122 cb->cb_prevsnap, &used); 1123 } 1124 cb->cb_snapused += used; 1125 free(cb->cb_firstsnap); 1126 cb->cb_firstsnap = NULL; 1127 free(cb->cb_prevsnap); 1128 cb->cb_prevsnap = NULL; 1129 } 1130 return (err); 1131 } 1132 1133 static int 1134 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1135 { 1136 destroy_cbdata_t *cb = arg; 1137 int err = 0; 1138 1139 /* Check for clones. */ 1140 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1141 cb->cb_target = zhp; 1142 cb->cb_first = B_TRUE; 1143 err = zfs_iter_dependents(zhp, B_TRUE, 1144 destroy_check_dependent, cb); 1145 } 1146 1147 if (err == 0) { 1148 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1149 nomem(); 1150 } 1151 zfs_close(zhp); 1152 return (err); 1153 } 1154 1155 static int 1156 gather_snapshots(zfs_handle_t *zhp, void *arg) 1157 { 1158 destroy_cbdata_t *cb = arg; 1159 int err = 0; 1160 1161 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1162 if (err == ENOENT) 1163 err = 0; 1164 if (err != 0) 1165 goto out; 1166 1167 if (cb->cb_verbose) { 1168 err = destroy_print_snapshots(zhp, cb); 1169 if (err != 0) 1170 goto out; 1171 } 1172 1173 if (cb->cb_recurse) 1174 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1175 1176 out: 1177 zfs_close(zhp); 1178 return (err); 1179 } 1180 1181 static int 1182 destroy_clones(destroy_cbdata_t *cb) 1183 { 1184 nvpair_t *pair; 1185 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1186 pair != NULL; 1187 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1188 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1189 ZFS_TYPE_SNAPSHOT); 1190 if (zhp != NULL) { 1191 boolean_t defer = cb->cb_defer_destroy; 1192 int err = 0; 1193 1194 /* 1195 * We can't defer destroy non-snapshots, so set it to 1196 * false while destroying the clones. 1197 */ 1198 cb->cb_defer_destroy = B_FALSE; 1199 err = zfs_iter_dependents(zhp, B_FALSE, 1200 destroy_callback, cb); 1201 cb->cb_defer_destroy = defer; 1202 zfs_close(zhp); 1203 if (err != 0) 1204 return (err); 1205 } 1206 } 1207 return (0); 1208 } 1209 1210 static int 1211 zfs_do_destroy(int argc, char **argv) 1212 { 1213 destroy_cbdata_t cb = { 0 }; 1214 int rv = 0; 1215 int err = 0; 1216 int c; 1217 zfs_handle_t *zhp = NULL; 1218 char *at, *pound; 1219 zfs_type_t type = ZFS_TYPE_DATASET; 1220 1221 /* check options */ 1222 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1223 switch (c) { 1224 case 'v': 1225 cb.cb_verbose = B_TRUE; 1226 break; 1227 case 'p': 1228 cb.cb_verbose = B_TRUE; 1229 cb.cb_parsable = B_TRUE; 1230 break; 1231 case 'n': 1232 cb.cb_dryrun = B_TRUE; 1233 break; 1234 case 'd': 1235 cb.cb_defer_destroy = B_TRUE; 1236 type = ZFS_TYPE_SNAPSHOT; 1237 break; 1238 case 'f': 1239 cb.cb_force = B_TRUE; 1240 break; 1241 case 'r': 1242 cb.cb_recurse = B_TRUE; 1243 break; 1244 case 'R': 1245 cb.cb_recurse = B_TRUE; 1246 cb.cb_doclones = B_TRUE; 1247 break; 1248 case '?': 1249 default: 1250 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1251 optopt); 1252 usage(B_FALSE); 1253 } 1254 } 1255 1256 argc -= optind; 1257 argv += optind; 1258 1259 /* check number of arguments */ 1260 if (argc == 0) { 1261 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1262 usage(B_FALSE); 1263 } 1264 if (argc > 1) { 1265 (void) fprintf(stderr, gettext("too many arguments\n")); 1266 usage(B_FALSE); 1267 } 1268 1269 at = strchr(argv[0], '@'); 1270 pound = strchr(argv[0], '#'); 1271 if (at != NULL) { 1272 1273 /* Build the list of snaps to destroy in cb_nvl. */ 1274 cb.cb_nvl = fnvlist_alloc(); 1275 1276 *at = '\0'; 1277 zhp = zfs_open(g_zfs, argv[0], 1278 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1279 if (zhp == NULL) 1280 return (1); 1281 1282 cb.cb_snapspec = at + 1; 1283 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1284 cb.cb_error) { 1285 rv = 1; 1286 goto out; 1287 } 1288 1289 if (nvlist_empty(cb.cb_nvl)) { 1290 (void) fprintf(stderr, gettext("could not find any " 1291 "snapshots to destroy; check snapshot names.\n")); 1292 rv = 1; 1293 goto out; 1294 } 1295 1296 if (cb.cb_verbose) { 1297 char buf[16]; 1298 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1299 if (cb.cb_parsable) { 1300 (void) printf("reclaim\t%llu\n", 1301 cb.cb_snapused); 1302 } else if (cb.cb_dryrun) { 1303 (void) printf(gettext("would reclaim %s\n"), 1304 buf); 1305 } else { 1306 (void) printf(gettext("will reclaim %s\n"), 1307 buf); 1308 } 1309 } 1310 1311 if (!cb.cb_dryrun) { 1312 if (cb.cb_doclones) { 1313 cb.cb_batchedsnaps = fnvlist_alloc(); 1314 err = destroy_clones(&cb); 1315 if (err == 0) { 1316 err = zfs_destroy_snaps_nvl(g_zfs, 1317 cb.cb_batchedsnaps, B_FALSE); 1318 } 1319 if (err != 0) { 1320 rv = 1; 1321 goto out; 1322 } 1323 } 1324 if (err == 0) { 1325 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1326 cb.cb_defer_destroy); 1327 } 1328 } 1329 1330 if (err != 0) 1331 rv = 1; 1332 } else if (pound != NULL) { 1333 int err; 1334 nvlist_t *nvl; 1335 1336 if (cb.cb_dryrun) { 1337 (void) fprintf(stderr, 1338 "dryrun is not supported with bookmark\n"); 1339 return (-1); 1340 } 1341 1342 if (cb.cb_defer_destroy) { 1343 (void) fprintf(stderr, 1344 "defer destroy is not supported with bookmark\n"); 1345 return (-1); 1346 } 1347 1348 if (cb.cb_recurse) { 1349 (void) fprintf(stderr, 1350 "recursive is not supported with bookmark\n"); 1351 return (-1); 1352 } 1353 1354 if (!zfs_bookmark_exists(argv[0])) { 1355 (void) fprintf(stderr, gettext("bookmark '%s' " 1356 "does not exist.\n"), argv[0]); 1357 return (1); 1358 } 1359 1360 nvl = fnvlist_alloc(); 1361 fnvlist_add_boolean(nvl, argv[0]); 1362 1363 err = lzc_destroy_bookmarks(nvl, NULL); 1364 if (err != 0) { 1365 (void) zfs_standard_error(g_zfs, err, 1366 "cannot destroy bookmark"); 1367 } 1368 1369 nvlist_free(cb.cb_nvl); 1370 1371 return (err); 1372 } else { 1373 /* Open the given dataset */ 1374 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1375 return (1); 1376 1377 cb.cb_target = zhp; 1378 1379 /* 1380 * Perform an explicit check for pools before going any further. 1381 */ 1382 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1383 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1384 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1385 "operation does not apply to pools\n"), 1386 zfs_get_name(zhp)); 1387 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1388 "%s' to destroy all datasets in the pool\n"), 1389 zfs_get_name(zhp)); 1390 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1391 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1392 rv = 1; 1393 goto out; 1394 } 1395 1396 /* 1397 * Check for any dependents and/or clones. 1398 */ 1399 cb.cb_first = B_TRUE; 1400 if (!cb.cb_doclones && 1401 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1402 &cb) != 0) { 1403 rv = 1; 1404 goto out; 1405 } 1406 1407 if (cb.cb_error) { 1408 rv = 1; 1409 goto out; 1410 } 1411 1412 cb.cb_batchedsnaps = fnvlist_alloc(); 1413 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1414 &cb) != 0) { 1415 rv = 1; 1416 goto out; 1417 } 1418 1419 /* 1420 * Do the real thing. The callback will close the 1421 * handle regardless of whether it succeeds or not. 1422 */ 1423 err = destroy_callback(zhp, &cb); 1424 zhp = NULL; 1425 if (err == 0) { 1426 err = zfs_destroy_snaps_nvl(g_zfs, 1427 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1428 } 1429 if (err != 0) 1430 rv = 1; 1431 } 1432 1433 out: 1434 fnvlist_free(cb.cb_batchedsnaps); 1435 fnvlist_free(cb.cb_nvl); 1436 if (zhp != NULL) 1437 zfs_close(zhp); 1438 return (rv); 1439 } 1440 1441 static boolean_t 1442 is_recvd_column(zprop_get_cbdata_t *cbp) 1443 { 1444 int i; 1445 zfs_get_column_t col; 1446 1447 for (i = 0; i < ZFS_GET_NCOLS && 1448 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1449 if (col == GET_COL_RECVD) 1450 return (B_TRUE); 1451 return (B_FALSE); 1452 } 1453 1454 /* 1455 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1456 * < all | property[,property]... > < fs | snap | vol > ... 1457 * 1458 * -r recurse over any child datasets 1459 * -H scripted mode. Headers are stripped, and fields are separated 1460 * by tabs instead of spaces. 1461 * -o Set of fields to display. One of "name,property,value, 1462 * received,source". Default is "name,property,value,source". 1463 * "all" is an alias for all five. 1464 * -s Set of sources to allow. One of 1465 * "local,default,inherited,received,temporary,none". Default is 1466 * all six. 1467 * -p Display values in parsable (literal) format. 1468 * 1469 * Prints properties for the given datasets. The user can control which 1470 * columns to display as well as which property types to allow. 1471 */ 1472 1473 /* 1474 * Invoked to display the properties for a single dataset. 1475 */ 1476 static int 1477 get_callback(zfs_handle_t *zhp, void *data) 1478 { 1479 char buf[ZFS_MAXPROPLEN]; 1480 char rbuf[ZFS_MAXPROPLEN]; 1481 zprop_source_t sourcetype; 1482 char source[ZFS_MAXNAMELEN]; 1483 zprop_get_cbdata_t *cbp = data; 1484 nvlist_t *user_props = zfs_get_user_props(zhp); 1485 zprop_list_t *pl = cbp->cb_proplist; 1486 nvlist_t *propval; 1487 char *strval; 1488 char *sourceval; 1489 boolean_t received = is_recvd_column(cbp); 1490 1491 for (; pl != NULL; pl = pl->pl_next) { 1492 char *recvdval = NULL; 1493 /* 1494 * Skip the special fake placeholder. This will also skip over 1495 * the name property when 'all' is specified. 1496 */ 1497 if (pl->pl_prop == ZFS_PROP_NAME && 1498 pl == cbp->cb_proplist) 1499 continue; 1500 1501 if (pl->pl_prop != ZPROP_INVAL) { 1502 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1503 sizeof (buf), &sourcetype, source, 1504 sizeof (source), 1505 cbp->cb_literal) != 0) { 1506 if (pl->pl_all) 1507 continue; 1508 if (!zfs_prop_valid_for_type(pl->pl_prop, 1509 ZFS_TYPE_DATASET)) { 1510 (void) fprintf(stderr, 1511 gettext("No such property '%s'\n"), 1512 zfs_prop_to_name(pl->pl_prop)); 1513 continue; 1514 } 1515 sourcetype = ZPROP_SRC_NONE; 1516 (void) strlcpy(buf, "-", sizeof (buf)); 1517 } 1518 1519 if (received && (zfs_prop_get_recvd(zhp, 1520 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1521 cbp->cb_literal) == 0)) 1522 recvdval = rbuf; 1523 1524 zprop_print_one_property(zfs_get_name(zhp), cbp, 1525 zfs_prop_to_name(pl->pl_prop), 1526 buf, sourcetype, source, recvdval); 1527 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1528 sourcetype = ZPROP_SRC_LOCAL; 1529 1530 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1531 buf, sizeof (buf), cbp->cb_literal) != 0) { 1532 sourcetype = ZPROP_SRC_NONE; 1533 (void) strlcpy(buf, "-", sizeof (buf)); 1534 } 1535 1536 zprop_print_one_property(zfs_get_name(zhp), cbp, 1537 pl->pl_user_prop, buf, sourcetype, source, NULL); 1538 } else if (zfs_prop_written(pl->pl_user_prop)) { 1539 sourcetype = ZPROP_SRC_LOCAL; 1540 1541 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1542 buf, sizeof (buf), cbp->cb_literal) != 0) { 1543 sourcetype = ZPROP_SRC_NONE; 1544 (void) strlcpy(buf, "-", sizeof (buf)); 1545 } 1546 1547 zprop_print_one_property(zfs_get_name(zhp), cbp, 1548 pl->pl_user_prop, buf, sourcetype, source, NULL); 1549 } else { 1550 if (nvlist_lookup_nvlist(user_props, 1551 pl->pl_user_prop, &propval) != 0) { 1552 if (pl->pl_all) 1553 continue; 1554 sourcetype = ZPROP_SRC_NONE; 1555 strval = "-"; 1556 } else { 1557 verify(nvlist_lookup_string(propval, 1558 ZPROP_VALUE, &strval) == 0); 1559 verify(nvlist_lookup_string(propval, 1560 ZPROP_SOURCE, &sourceval) == 0); 1561 1562 if (strcmp(sourceval, 1563 zfs_get_name(zhp)) == 0) { 1564 sourcetype = ZPROP_SRC_LOCAL; 1565 } else if (strcmp(sourceval, 1566 ZPROP_SOURCE_VAL_RECVD) == 0) { 1567 sourcetype = ZPROP_SRC_RECEIVED; 1568 } else { 1569 sourcetype = ZPROP_SRC_INHERITED; 1570 (void) strlcpy(source, 1571 sourceval, sizeof (source)); 1572 } 1573 } 1574 1575 if (received && (zfs_prop_get_recvd(zhp, 1576 pl->pl_user_prop, rbuf, sizeof (rbuf), 1577 cbp->cb_literal) == 0)) 1578 recvdval = rbuf; 1579 1580 zprop_print_one_property(zfs_get_name(zhp), cbp, 1581 pl->pl_user_prop, strval, sourcetype, 1582 source, recvdval); 1583 } 1584 } 1585 1586 return (0); 1587 } 1588 1589 static int 1590 zfs_do_get(int argc, char **argv) 1591 { 1592 zprop_get_cbdata_t cb = { 0 }; 1593 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1594 int types = ZFS_TYPE_DATASET; 1595 char *value, *fields; 1596 int ret = 0; 1597 int limit = 0; 1598 zprop_list_t fake_name = { 0 }; 1599 1600 /* 1601 * Set up default columns and sources. 1602 */ 1603 cb.cb_sources = ZPROP_SRC_ALL; 1604 cb.cb_columns[0] = GET_COL_NAME; 1605 cb.cb_columns[1] = GET_COL_PROPERTY; 1606 cb.cb_columns[2] = GET_COL_VALUE; 1607 cb.cb_columns[3] = GET_COL_SOURCE; 1608 cb.cb_type = ZFS_TYPE_DATASET; 1609 1610 /* check options */ 1611 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1612 switch (c) { 1613 case 'p': 1614 cb.cb_literal = B_TRUE; 1615 break; 1616 case 'd': 1617 limit = parse_depth(optarg, &flags); 1618 break; 1619 case 'r': 1620 flags |= ZFS_ITER_RECURSE; 1621 break; 1622 case 'H': 1623 cb.cb_scripted = B_TRUE; 1624 break; 1625 case ':': 1626 (void) fprintf(stderr, gettext("missing argument for " 1627 "'%c' option\n"), optopt); 1628 usage(B_FALSE); 1629 break; 1630 case 'o': 1631 /* 1632 * Process the set of columns to display. We zero out 1633 * the structure to give us a blank slate. 1634 */ 1635 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1636 i = 0; 1637 while (*optarg != '\0') { 1638 static char *col_subopts[] = 1639 { "name", "property", "value", "received", 1640 "source", "all", NULL }; 1641 1642 if (i == ZFS_GET_NCOLS) { 1643 (void) fprintf(stderr, gettext("too " 1644 "many fields given to -o " 1645 "option\n")); 1646 usage(B_FALSE); 1647 } 1648 1649 switch (getsubopt(&optarg, col_subopts, 1650 &value)) { 1651 case 0: 1652 cb.cb_columns[i++] = GET_COL_NAME; 1653 break; 1654 case 1: 1655 cb.cb_columns[i++] = GET_COL_PROPERTY; 1656 break; 1657 case 2: 1658 cb.cb_columns[i++] = GET_COL_VALUE; 1659 break; 1660 case 3: 1661 cb.cb_columns[i++] = GET_COL_RECVD; 1662 flags |= ZFS_ITER_RECVD_PROPS; 1663 break; 1664 case 4: 1665 cb.cb_columns[i++] = GET_COL_SOURCE; 1666 break; 1667 case 5: 1668 if (i > 0) { 1669 (void) fprintf(stderr, 1670 gettext("\"all\" conflicts " 1671 "with specific fields " 1672 "given to -o option\n")); 1673 usage(B_FALSE); 1674 } 1675 cb.cb_columns[0] = GET_COL_NAME; 1676 cb.cb_columns[1] = GET_COL_PROPERTY; 1677 cb.cb_columns[2] = GET_COL_VALUE; 1678 cb.cb_columns[3] = GET_COL_RECVD; 1679 cb.cb_columns[4] = GET_COL_SOURCE; 1680 flags |= ZFS_ITER_RECVD_PROPS; 1681 i = ZFS_GET_NCOLS; 1682 break; 1683 default: 1684 (void) fprintf(stderr, 1685 gettext("invalid column name " 1686 "'%s'\n"), value); 1687 usage(B_FALSE); 1688 } 1689 } 1690 break; 1691 1692 case 's': 1693 cb.cb_sources = 0; 1694 while (*optarg != '\0') { 1695 static char *source_subopts[] = { 1696 "local", "default", "inherited", 1697 "received", "temporary", "none", 1698 NULL }; 1699 1700 switch (getsubopt(&optarg, source_subopts, 1701 &value)) { 1702 case 0: 1703 cb.cb_sources |= ZPROP_SRC_LOCAL; 1704 break; 1705 case 1: 1706 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1707 break; 1708 case 2: 1709 cb.cb_sources |= ZPROP_SRC_INHERITED; 1710 break; 1711 case 3: 1712 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1713 break; 1714 case 4: 1715 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1716 break; 1717 case 5: 1718 cb.cb_sources |= ZPROP_SRC_NONE; 1719 break; 1720 default: 1721 (void) fprintf(stderr, 1722 gettext("invalid source " 1723 "'%s'\n"), value); 1724 usage(B_FALSE); 1725 } 1726 } 1727 break; 1728 1729 case 't': 1730 types = 0; 1731 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1732 while (*optarg != '\0') { 1733 static char *type_subopts[] = { "filesystem", 1734 "volume", "snapshot", "bookmark", 1735 "all", NULL }; 1736 1737 switch (getsubopt(&optarg, type_subopts, 1738 &value)) { 1739 case 0: 1740 types |= ZFS_TYPE_FILESYSTEM; 1741 break; 1742 case 1: 1743 types |= ZFS_TYPE_VOLUME; 1744 break; 1745 case 2: 1746 types |= ZFS_TYPE_SNAPSHOT; 1747 break; 1748 case 3: 1749 types |= ZFS_TYPE_BOOKMARK; 1750 break; 1751 case 4: 1752 types = ZFS_TYPE_DATASET | 1753 ZFS_TYPE_BOOKMARK; 1754 break; 1755 1756 default: 1757 (void) fprintf(stderr, 1758 gettext("invalid type '%s'\n"), 1759 value); 1760 usage(B_FALSE); 1761 } 1762 } 1763 break; 1764 1765 case '?': 1766 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1767 optopt); 1768 usage(B_FALSE); 1769 } 1770 } 1771 1772 argc -= optind; 1773 argv += optind; 1774 1775 if (argc < 1) { 1776 (void) fprintf(stderr, gettext("missing property " 1777 "argument\n")); 1778 usage(B_FALSE); 1779 } 1780 1781 fields = argv[0]; 1782 1783 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1784 != 0) 1785 usage(B_FALSE); 1786 1787 argc--; 1788 argv++; 1789 1790 /* 1791 * As part of zfs_expand_proplist(), we keep track of the maximum column 1792 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1793 * need to know the maximum name length. However, the user likely did 1794 * not specify 'name' as one of the properties to fetch, so we need to 1795 * make sure we always include at least this property for 1796 * print_get_headers() to work properly. 1797 */ 1798 if (cb.cb_proplist != NULL) { 1799 fake_name.pl_prop = ZFS_PROP_NAME; 1800 fake_name.pl_width = strlen(gettext("NAME")); 1801 fake_name.pl_next = cb.cb_proplist; 1802 cb.cb_proplist = &fake_name; 1803 } 1804 1805 cb.cb_first = B_TRUE; 1806 1807 /* run for each object */ 1808 ret = zfs_for_each(argc, argv, flags, types, NULL, 1809 &cb.cb_proplist, limit, get_callback, &cb); 1810 1811 if (cb.cb_proplist == &fake_name) 1812 zprop_free_list(fake_name.pl_next); 1813 else 1814 zprop_free_list(cb.cb_proplist); 1815 1816 return (ret); 1817 } 1818 1819 /* 1820 * inherit [-rS] <property> <fs|vol> ... 1821 * 1822 * -r Recurse over all children 1823 * -S Revert to received value, if any 1824 * 1825 * For each dataset specified on the command line, inherit the given property 1826 * from its parent. Inheriting a property at the pool level will cause it to 1827 * use the default value. The '-r' flag will recurse over all children, and is 1828 * useful for setting a property on a hierarchy-wide basis, regardless of any 1829 * local modifications for each dataset. 1830 */ 1831 1832 typedef struct inherit_cbdata { 1833 const char *cb_propname; 1834 boolean_t cb_received; 1835 } inherit_cbdata_t; 1836 1837 static int 1838 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1839 { 1840 inherit_cbdata_t *cb = data; 1841 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1842 1843 /* 1844 * If we're doing it recursively, then ignore properties that 1845 * are not valid for this type of dataset. 1846 */ 1847 if (prop != ZPROP_INVAL && 1848 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1849 return (0); 1850 1851 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1852 } 1853 1854 static int 1855 inherit_cb(zfs_handle_t *zhp, void *data) 1856 { 1857 inherit_cbdata_t *cb = data; 1858 1859 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1860 } 1861 1862 static int 1863 zfs_do_inherit(int argc, char **argv) 1864 { 1865 int c; 1866 zfs_prop_t prop; 1867 inherit_cbdata_t cb = { 0 }; 1868 char *propname; 1869 int ret = 0; 1870 int flags = 0; 1871 boolean_t received = B_FALSE; 1872 1873 /* check options */ 1874 while ((c = getopt(argc, argv, "rS")) != -1) { 1875 switch (c) { 1876 case 'r': 1877 flags |= ZFS_ITER_RECURSE; 1878 break; 1879 case 'S': 1880 received = B_TRUE; 1881 break; 1882 case '?': 1883 default: 1884 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1885 optopt); 1886 usage(B_FALSE); 1887 } 1888 } 1889 1890 argc -= optind; 1891 argv += optind; 1892 1893 /* check number of arguments */ 1894 if (argc < 1) { 1895 (void) fprintf(stderr, gettext("missing property argument\n")); 1896 usage(B_FALSE); 1897 } 1898 if (argc < 2) { 1899 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1900 usage(B_FALSE); 1901 } 1902 1903 propname = argv[0]; 1904 argc--; 1905 argv++; 1906 1907 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1908 if (zfs_prop_readonly(prop)) { 1909 (void) fprintf(stderr, gettext( 1910 "%s property is read-only\n"), 1911 propname); 1912 return (1); 1913 } 1914 if (!zfs_prop_inheritable(prop) && !received) { 1915 (void) fprintf(stderr, gettext("'%s' property cannot " 1916 "be inherited\n"), propname); 1917 if (prop == ZFS_PROP_QUOTA || 1918 prop == ZFS_PROP_RESERVATION || 1919 prop == ZFS_PROP_REFQUOTA || 1920 prop == ZFS_PROP_REFRESERVATION) { 1921 (void) fprintf(stderr, gettext("use 'zfs set " 1922 "%s=none' to clear\n"), propname); 1923 (void) fprintf(stderr, gettext("use 'zfs " 1924 "inherit -S %s' to revert to received " 1925 "value\n"), propname); 1926 } 1927 return (1); 1928 } 1929 if (received && (prop == ZFS_PROP_VOLSIZE || 1930 prop == ZFS_PROP_VERSION)) { 1931 (void) fprintf(stderr, gettext("'%s' property cannot " 1932 "be reverted to a received value\n"), propname); 1933 return (1); 1934 } 1935 } else if (!zfs_prop_user(propname)) { 1936 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1937 propname); 1938 usage(B_FALSE); 1939 } 1940 1941 cb.cb_propname = propname; 1942 cb.cb_received = received; 1943 1944 if (flags & ZFS_ITER_RECURSE) { 1945 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1946 NULL, NULL, 0, inherit_recurse_cb, &cb); 1947 } else { 1948 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1949 NULL, NULL, 0, inherit_cb, &cb); 1950 } 1951 1952 return (ret); 1953 } 1954 1955 typedef struct upgrade_cbdata { 1956 uint64_t cb_numupgraded; 1957 uint64_t cb_numsamegraded; 1958 uint64_t cb_numfailed; 1959 uint64_t cb_version; 1960 boolean_t cb_newer; 1961 boolean_t cb_foundone; 1962 char cb_lastfs[ZFS_MAXNAMELEN]; 1963 } upgrade_cbdata_t; 1964 1965 static int 1966 same_pool(zfs_handle_t *zhp, const char *name) 1967 { 1968 int len1 = strcspn(name, "/@"); 1969 const char *zhname = zfs_get_name(zhp); 1970 int len2 = strcspn(zhname, "/@"); 1971 1972 if (len1 != len2) 1973 return (B_FALSE); 1974 return (strncmp(name, zhname, len1) == 0); 1975 } 1976 1977 static int 1978 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1979 { 1980 upgrade_cbdata_t *cb = data; 1981 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1982 1983 /* list if it's old/new */ 1984 if ((!cb->cb_newer && version < ZPL_VERSION) || 1985 (cb->cb_newer && version > ZPL_VERSION)) { 1986 char *str; 1987 if (cb->cb_newer) { 1988 str = gettext("The following filesystems are " 1989 "formatted using a newer software version and\n" 1990 "cannot be accessed on the current system.\n\n"); 1991 } else { 1992 str = gettext("The following filesystems are " 1993 "out of date, and can be upgraded. After being\n" 1994 "upgraded, these filesystems (and any 'zfs send' " 1995 "streams generated from\n" 1996 "subsequent snapshots) will no longer be " 1997 "accessible by older software versions.\n\n"); 1998 } 1999 2000 if (!cb->cb_foundone) { 2001 (void) puts(str); 2002 (void) printf(gettext("VER FILESYSTEM\n")); 2003 (void) printf(gettext("--- ------------\n")); 2004 cb->cb_foundone = B_TRUE; 2005 } 2006 2007 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2008 } 2009 2010 return (0); 2011 } 2012 2013 static int 2014 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2015 { 2016 upgrade_cbdata_t *cb = data; 2017 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2018 int needed_spa_version; 2019 int spa_version; 2020 2021 if (zfs_spa_version(zhp, &spa_version) < 0) 2022 return (-1); 2023 2024 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2025 2026 if (needed_spa_version < 0) 2027 return (-1); 2028 2029 if (spa_version < needed_spa_version) { 2030 /* can't upgrade */ 2031 (void) printf(gettext("%s: can not be " 2032 "upgraded; the pool version needs to first " 2033 "be upgraded\nto version %d\n\n"), 2034 zfs_get_name(zhp), needed_spa_version); 2035 cb->cb_numfailed++; 2036 return (0); 2037 } 2038 2039 /* upgrade */ 2040 if (version < cb->cb_version) { 2041 char verstr[16]; 2042 (void) snprintf(verstr, sizeof (verstr), 2043 "%llu", cb->cb_version); 2044 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2045 /* 2046 * If they did "zfs upgrade -a", then we could 2047 * be doing ioctls to different pools. We need 2048 * to log this history once to each pool, and bypass 2049 * the normal history logging that happens in main(). 2050 */ 2051 (void) zpool_log_history(g_zfs, history_str); 2052 log_history = B_FALSE; 2053 } 2054 if (zfs_prop_set(zhp, "version", verstr) == 0) 2055 cb->cb_numupgraded++; 2056 else 2057 cb->cb_numfailed++; 2058 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2059 } else if (version > cb->cb_version) { 2060 /* can't downgrade */ 2061 (void) printf(gettext("%s: can not be downgraded; " 2062 "it is already at version %u\n"), 2063 zfs_get_name(zhp), version); 2064 cb->cb_numfailed++; 2065 } else { 2066 cb->cb_numsamegraded++; 2067 } 2068 return (0); 2069 } 2070 2071 /* 2072 * zfs upgrade 2073 * zfs upgrade -v 2074 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2075 */ 2076 static int 2077 zfs_do_upgrade(int argc, char **argv) 2078 { 2079 boolean_t all = B_FALSE; 2080 boolean_t showversions = B_FALSE; 2081 int ret = 0; 2082 upgrade_cbdata_t cb = { 0 }; 2083 char c; 2084 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2085 2086 /* check options */ 2087 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2088 switch (c) { 2089 case 'r': 2090 flags |= ZFS_ITER_RECURSE; 2091 break; 2092 case 'v': 2093 showversions = B_TRUE; 2094 break; 2095 case 'V': 2096 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2097 optarg, &cb.cb_version) != 0) { 2098 (void) fprintf(stderr, 2099 gettext("invalid version %s\n"), optarg); 2100 usage(B_FALSE); 2101 } 2102 break; 2103 case 'a': 2104 all = B_TRUE; 2105 break; 2106 case '?': 2107 default: 2108 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2109 optopt); 2110 usage(B_FALSE); 2111 } 2112 } 2113 2114 argc -= optind; 2115 argv += optind; 2116 2117 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2118 usage(B_FALSE); 2119 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2120 cb.cb_version || argc)) 2121 usage(B_FALSE); 2122 if ((all || argc) && (showversions)) 2123 usage(B_FALSE); 2124 if (all && argc) 2125 usage(B_FALSE); 2126 2127 if (showversions) { 2128 /* Show info on available versions. */ 2129 (void) printf(gettext("The following filesystem versions are " 2130 "supported:\n\n")); 2131 (void) printf(gettext("VER DESCRIPTION\n")); 2132 (void) printf("--- -----------------------------------------" 2133 "---------------\n"); 2134 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2135 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2136 (void) printf(gettext(" 3 Case insensitive and filesystem " 2137 "user identifier (FUID)\n")); 2138 (void) printf(gettext(" 4 userquota, groupquota " 2139 "properties\n")); 2140 (void) printf(gettext(" 5 System attributes\n")); 2141 (void) printf(gettext("\nFor more information on a particular " 2142 "version, including supported releases,\n")); 2143 (void) printf("see the ZFS Administration Guide.\n\n"); 2144 ret = 0; 2145 } else if (argc || all) { 2146 /* Upgrade filesystems */ 2147 if (cb.cb_version == 0) 2148 cb.cb_version = ZPL_VERSION; 2149 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2150 NULL, NULL, 0, upgrade_set_callback, &cb); 2151 (void) printf(gettext("%llu filesystems upgraded\n"), 2152 cb.cb_numupgraded); 2153 if (cb.cb_numsamegraded) { 2154 (void) printf(gettext("%llu filesystems already at " 2155 "this version\n"), 2156 cb.cb_numsamegraded); 2157 } 2158 if (cb.cb_numfailed != 0) 2159 ret = 1; 2160 } else { 2161 /* List old-version filesytems */ 2162 boolean_t found; 2163 (void) printf(gettext("This system is currently running " 2164 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2165 2166 flags |= ZFS_ITER_RECURSE; 2167 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2168 NULL, NULL, 0, upgrade_list_callback, &cb); 2169 2170 found = cb.cb_foundone; 2171 cb.cb_foundone = B_FALSE; 2172 cb.cb_newer = B_TRUE; 2173 2174 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2175 NULL, NULL, 0, upgrade_list_callback, &cb); 2176 2177 if (!cb.cb_foundone && !found) { 2178 (void) printf(gettext("All filesystems are " 2179 "formatted with the current version.\n")); 2180 } 2181 } 2182 2183 return (ret); 2184 } 2185 2186 /* 2187 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2188 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2189 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2190 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2191 * 2192 * -H Scripted mode; elide headers and separate columns by tabs. 2193 * -i Translate SID to POSIX ID. 2194 * -n Print numeric ID instead of user/group name. 2195 * -o Control which fields to display. 2196 * -p Use exact (parsable) numeric output. 2197 * -s Specify sort columns, descending order. 2198 * -S Specify sort columns, ascending order. 2199 * -t Control which object types to display. 2200 * 2201 * Displays space consumed by, and quotas on, each user in the specified 2202 * filesystem or snapshot. 2203 */ 2204 2205 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2206 enum us_field_types { 2207 USFIELD_TYPE, 2208 USFIELD_NAME, 2209 USFIELD_USED, 2210 USFIELD_QUOTA 2211 }; 2212 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2213 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2214 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2215 2216 #define USTYPE_PSX_GRP (1 << 0) 2217 #define USTYPE_PSX_USR (1 << 1) 2218 #define USTYPE_SMB_GRP (1 << 2) 2219 #define USTYPE_SMB_USR (1 << 3) 2220 #define USTYPE_ALL \ 2221 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2222 2223 static int us_type_bits[] = { 2224 USTYPE_PSX_GRP, 2225 USTYPE_PSX_USR, 2226 USTYPE_SMB_GRP, 2227 USTYPE_SMB_USR, 2228 USTYPE_ALL 2229 }; 2230 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2231 "smbuser", "all" }; 2232 2233 typedef struct us_node { 2234 nvlist_t *usn_nvl; 2235 uu_avl_node_t usn_avlnode; 2236 uu_list_node_t usn_listnode; 2237 } us_node_t; 2238 2239 typedef struct us_cbdata { 2240 nvlist_t **cb_nvlp; 2241 uu_avl_pool_t *cb_avl_pool; 2242 uu_avl_t *cb_avl; 2243 boolean_t cb_numname; 2244 boolean_t cb_nicenum; 2245 boolean_t cb_sid2posix; 2246 zfs_userquota_prop_t cb_prop; 2247 zfs_sort_column_t *cb_sortcol; 2248 size_t cb_width[USFIELD_LAST]; 2249 } us_cbdata_t; 2250 2251 static boolean_t us_populated = B_FALSE; 2252 2253 typedef struct { 2254 zfs_sort_column_t *si_sortcol; 2255 boolean_t si_numname; 2256 } us_sort_info_t; 2257 2258 static int 2259 us_field_index(char *field) 2260 { 2261 int i; 2262 2263 for (i = 0; i < USFIELD_LAST; i++) { 2264 if (strcmp(field, us_field_names[i]) == 0) 2265 return (i); 2266 } 2267 2268 return (-1); 2269 } 2270 2271 static int 2272 us_compare(const void *larg, const void *rarg, void *unused) 2273 { 2274 const us_node_t *l = larg; 2275 const us_node_t *r = rarg; 2276 us_sort_info_t *si = (us_sort_info_t *)unused; 2277 zfs_sort_column_t *sortcol = si->si_sortcol; 2278 boolean_t numname = si->si_numname; 2279 nvlist_t *lnvl = l->usn_nvl; 2280 nvlist_t *rnvl = r->usn_nvl; 2281 int rc = 0; 2282 boolean_t lvb, rvb; 2283 2284 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2285 char *lvstr = ""; 2286 char *rvstr = ""; 2287 uint32_t lv32 = 0; 2288 uint32_t rv32 = 0; 2289 uint64_t lv64 = 0; 2290 uint64_t rv64 = 0; 2291 zfs_prop_t prop = sortcol->sc_prop; 2292 const char *propname = NULL; 2293 boolean_t reverse = sortcol->sc_reverse; 2294 2295 switch (prop) { 2296 case ZFS_PROP_TYPE: 2297 propname = "type"; 2298 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2299 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2300 if (rv32 != lv32) 2301 rc = (rv32 < lv32) ? 1 : -1; 2302 break; 2303 case ZFS_PROP_NAME: 2304 propname = "name"; 2305 if (numname) { 2306 (void) nvlist_lookup_uint64(lnvl, propname, 2307 &lv64); 2308 (void) nvlist_lookup_uint64(rnvl, propname, 2309 &rv64); 2310 if (rv64 != lv64) 2311 rc = (rv64 < lv64) ? 1 : -1; 2312 } else { 2313 (void) nvlist_lookup_string(lnvl, propname, 2314 &lvstr); 2315 (void) nvlist_lookup_string(rnvl, propname, 2316 &rvstr); 2317 rc = strcmp(lvstr, rvstr); 2318 } 2319 break; 2320 case ZFS_PROP_USED: 2321 case ZFS_PROP_QUOTA: 2322 if (!us_populated) 2323 break; 2324 if (prop == ZFS_PROP_USED) 2325 propname = "used"; 2326 else 2327 propname = "quota"; 2328 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2329 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2330 if (rv64 != lv64) 2331 rc = (rv64 < lv64) ? 1 : -1; 2332 break; 2333 } 2334 2335 if (rc != 0) { 2336 if (rc < 0) 2337 return (reverse ? 1 : -1); 2338 else 2339 return (reverse ? -1 : 1); 2340 } 2341 } 2342 2343 /* 2344 * If entries still seem to be the same, check if they are of the same 2345 * type (smbentity is added only if we are doing SID to POSIX ID 2346 * translation where we can have duplicate type/name combinations). 2347 */ 2348 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2349 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2350 lvb != rvb) 2351 return (lvb < rvb ? -1 : 1); 2352 2353 return (0); 2354 } 2355 2356 static inline const char * 2357 us_type2str(unsigned field_type) 2358 { 2359 switch (field_type) { 2360 case USTYPE_PSX_USR: 2361 return ("POSIX User"); 2362 case USTYPE_PSX_GRP: 2363 return ("POSIX Group"); 2364 case USTYPE_SMB_USR: 2365 return ("SMB User"); 2366 case USTYPE_SMB_GRP: 2367 return ("SMB Group"); 2368 default: 2369 return ("Undefined"); 2370 } 2371 } 2372 2373 static int 2374 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2375 { 2376 us_cbdata_t *cb = (us_cbdata_t *)arg; 2377 zfs_userquota_prop_t prop = cb->cb_prop; 2378 char *name = NULL; 2379 char *propname; 2380 char sizebuf[32]; 2381 us_node_t *node; 2382 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2383 uu_avl_t *avl = cb->cb_avl; 2384 uu_avl_index_t idx; 2385 nvlist_t *props; 2386 us_node_t *n; 2387 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2388 unsigned type; 2389 const char *typestr; 2390 size_t namelen; 2391 size_t typelen; 2392 size_t sizelen; 2393 int typeidx, nameidx, sizeidx; 2394 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2395 boolean_t smbentity = B_FALSE; 2396 2397 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2398 nomem(); 2399 node = safe_malloc(sizeof (us_node_t)); 2400 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2401 node->usn_nvl = props; 2402 2403 if (domain != NULL && domain[0] != '\0') { 2404 /* SMB */ 2405 char sid[ZFS_MAXNAMELEN + 32]; 2406 uid_t id; 2407 int err; 2408 int flag = IDMAP_REQ_FLG_USE_CACHE; 2409 2410 smbentity = B_TRUE; 2411 2412 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2413 2414 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2415 type = USTYPE_SMB_GRP; 2416 err = sid_to_id(sid, B_FALSE, &id); 2417 } else { 2418 type = USTYPE_SMB_USR; 2419 err = sid_to_id(sid, B_TRUE, &id); 2420 } 2421 2422 if (err == 0) { 2423 rid = id; 2424 if (!cb->cb_sid2posix) { 2425 if (type == USTYPE_SMB_USR) { 2426 (void) idmap_getwinnamebyuid(rid, flag, 2427 &name, NULL); 2428 } else { 2429 (void) idmap_getwinnamebygid(rid, flag, 2430 &name, NULL); 2431 } 2432 if (name == NULL) 2433 name = sid; 2434 } 2435 } 2436 } 2437 2438 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2439 /* POSIX or -i */ 2440 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2441 type = USTYPE_PSX_GRP; 2442 if (!cb->cb_numname) { 2443 struct group *g; 2444 2445 if ((g = getgrgid(rid)) != NULL) 2446 name = g->gr_name; 2447 } 2448 } else { 2449 type = USTYPE_PSX_USR; 2450 if (!cb->cb_numname) { 2451 struct passwd *p; 2452 2453 if ((p = getpwuid(rid)) != NULL) 2454 name = p->pw_name; 2455 } 2456 } 2457 } 2458 2459 /* 2460 * Make sure that the type/name combination is unique when doing 2461 * SID to POSIX ID translation (hence changing the type from SMB to 2462 * POSIX). 2463 */ 2464 if (cb->cb_sid2posix && 2465 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2466 nomem(); 2467 2468 /* Calculate/update width of TYPE field */ 2469 typestr = us_type2str(type); 2470 typelen = strlen(gettext(typestr)); 2471 typeidx = us_field_index("type"); 2472 if (typelen > cb->cb_width[typeidx]) 2473 cb->cb_width[typeidx] = typelen; 2474 if (nvlist_add_uint32(props, "type", type) != 0) 2475 nomem(); 2476 2477 /* Calculate/update width of NAME field */ 2478 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2479 if (nvlist_add_uint64(props, "name", rid) != 0) 2480 nomem(); 2481 namelen = snprintf(NULL, 0, "%u", rid); 2482 } else { 2483 if (nvlist_add_string(props, "name", name) != 0) 2484 nomem(); 2485 namelen = strlen(name); 2486 } 2487 nameidx = us_field_index("name"); 2488 if (namelen > cb->cb_width[nameidx]) 2489 cb->cb_width[nameidx] = namelen; 2490 2491 /* 2492 * Check if this type/name combination is in the list and update it; 2493 * otherwise add new node to the list. 2494 */ 2495 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2496 uu_avl_insert(avl, node, idx); 2497 } else { 2498 nvlist_free(props); 2499 free(node); 2500 node = n; 2501 props = node->usn_nvl; 2502 } 2503 2504 /* Calculate/update width of USED/QUOTA fields */ 2505 if (cb->cb_nicenum) 2506 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2507 else 2508 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2509 sizelen = strlen(sizebuf); 2510 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2511 propname = "used"; 2512 if (!nvlist_exists(props, "quota")) 2513 (void) nvlist_add_uint64(props, "quota", 0); 2514 } else { 2515 propname = "quota"; 2516 if (!nvlist_exists(props, "used")) 2517 (void) nvlist_add_uint64(props, "used", 0); 2518 } 2519 sizeidx = us_field_index(propname); 2520 if (sizelen > cb->cb_width[sizeidx]) 2521 cb->cb_width[sizeidx] = sizelen; 2522 2523 if (nvlist_add_uint64(props, propname, space) != 0) 2524 nomem(); 2525 2526 return (0); 2527 } 2528 2529 static void 2530 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2531 size_t *width, us_node_t *node) 2532 { 2533 nvlist_t *nvl = node->usn_nvl; 2534 char valstr[ZFS_MAXNAMELEN]; 2535 boolean_t first = B_TRUE; 2536 int cfield = 0; 2537 int field; 2538 uint32_t ustype; 2539 2540 /* Check type */ 2541 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2542 if (!(ustype & types)) 2543 return; 2544 2545 while ((field = fields[cfield]) != USFIELD_LAST) { 2546 nvpair_t *nvp = NULL; 2547 data_type_t type; 2548 uint32_t val32; 2549 uint64_t val64; 2550 char *strval = NULL; 2551 2552 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2553 if (strcmp(nvpair_name(nvp), 2554 us_field_names[field]) == 0) 2555 break; 2556 } 2557 2558 type = nvpair_type(nvp); 2559 switch (type) { 2560 case DATA_TYPE_UINT32: 2561 (void) nvpair_value_uint32(nvp, &val32); 2562 break; 2563 case DATA_TYPE_UINT64: 2564 (void) nvpair_value_uint64(nvp, &val64); 2565 break; 2566 case DATA_TYPE_STRING: 2567 (void) nvpair_value_string(nvp, &strval); 2568 break; 2569 default: 2570 (void) fprintf(stderr, "invalid data type\n"); 2571 } 2572 2573 switch (field) { 2574 case USFIELD_TYPE: 2575 strval = (char *)us_type2str(val32); 2576 break; 2577 case USFIELD_NAME: 2578 if (type == DATA_TYPE_UINT64) { 2579 (void) sprintf(valstr, "%llu", val64); 2580 strval = valstr; 2581 } 2582 break; 2583 case USFIELD_USED: 2584 case USFIELD_QUOTA: 2585 if (type == DATA_TYPE_UINT64) { 2586 if (parsable) { 2587 (void) sprintf(valstr, "%llu", val64); 2588 } else { 2589 zfs_nicenum(val64, valstr, 2590 sizeof (valstr)); 2591 } 2592 if (field == USFIELD_QUOTA && 2593 strcmp(valstr, "0") == 0) 2594 strval = "none"; 2595 else 2596 strval = valstr; 2597 } 2598 break; 2599 } 2600 2601 if (!first) { 2602 if (scripted) 2603 (void) printf("\t"); 2604 else 2605 (void) printf(" "); 2606 } 2607 if (scripted) 2608 (void) printf("%s", strval); 2609 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2610 (void) printf("%-*s", width[field], strval); 2611 else 2612 (void) printf("%*s", width[field], strval); 2613 2614 first = B_FALSE; 2615 cfield++; 2616 } 2617 2618 (void) printf("\n"); 2619 } 2620 2621 static void 2622 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2623 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2624 { 2625 us_node_t *node; 2626 const char *col; 2627 int cfield = 0; 2628 int field; 2629 2630 if (!scripted) { 2631 boolean_t first = B_TRUE; 2632 2633 while ((field = fields[cfield]) != USFIELD_LAST) { 2634 col = gettext(us_field_hdr[field]); 2635 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2636 (void) printf(first ? "%-*s" : " %-*s", 2637 width[field], col); 2638 } else { 2639 (void) printf(first ? "%*s" : " %*s", 2640 width[field], col); 2641 } 2642 first = B_FALSE; 2643 cfield++; 2644 } 2645 (void) printf("\n"); 2646 } 2647 2648 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2649 print_us_node(scripted, parsable, fields, types, width, node); 2650 if (rmnode) 2651 nvlist_free(node->usn_nvl); 2652 } 2653 } 2654 2655 static int 2656 zfs_do_userspace(int argc, char **argv) 2657 { 2658 zfs_handle_t *zhp; 2659 zfs_userquota_prop_t p; 2660 uu_avl_pool_t *avl_pool; 2661 uu_avl_t *avl_tree; 2662 uu_avl_walk_t *walk; 2663 char *delim; 2664 char deffields[] = "type,name,used,quota"; 2665 char *ofield = NULL; 2666 char *tfield = NULL; 2667 int cfield = 0; 2668 int fields[256]; 2669 int i; 2670 boolean_t scripted = B_FALSE; 2671 boolean_t prtnum = B_FALSE; 2672 boolean_t parsable = B_FALSE; 2673 boolean_t sid2posix = B_FALSE; 2674 int ret = 0; 2675 int c; 2676 zfs_sort_column_t *sortcol = NULL; 2677 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2678 us_cbdata_t cb; 2679 us_node_t *node; 2680 us_node_t *rmnode; 2681 uu_list_pool_t *listpool; 2682 uu_list_t *list; 2683 uu_avl_index_t idx = 0; 2684 uu_list_index_t idx2 = 0; 2685 2686 if (argc < 2) 2687 usage(B_FALSE); 2688 2689 if (strcmp(argv[0], "groupspace") == 0) 2690 /* Toggle default group types */ 2691 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2692 2693 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2694 switch (c) { 2695 case 'n': 2696 prtnum = B_TRUE; 2697 break; 2698 case 'H': 2699 scripted = B_TRUE; 2700 break; 2701 case 'p': 2702 parsable = B_TRUE; 2703 break; 2704 case 'o': 2705 ofield = optarg; 2706 break; 2707 case 's': 2708 case 'S': 2709 if (zfs_add_sort_column(&sortcol, optarg, 2710 c == 's' ? B_FALSE : B_TRUE) != 0) { 2711 (void) fprintf(stderr, 2712 gettext("invalid field '%s'\n"), optarg); 2713 usage(B_FALSE); 2714 } 2715 break; 2716 case 't': 2717 tfield = optarg; 2718 break; 2719 case 'i': 2720 sid2posix = B_TRUE; 2721 break; 2722 case ':': 2723 (void) fprintf(stderr, gettext("missing argument for " 2724 "'%c' option\n"), optopt); 2725 usage(B_FALSE); 2726 break; 2727 case '?': 2728 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2729 optopt); 2730 usage(B_FALSE); 2731 } 2732 } 2733 2734 argc -= optind; 2735 argv += optind; 2736 2737 if (argc < 1) { 2738 (void) fprintf(stderr, gettext("missing dataset name\n")); 2739 usage(B_FALSE); 2740 } 2741 if (argc > 1) { 2742 (void) fprintf(stderr, gettext("too many arguments\n")); 2743 usage(B_FALSE); 2744 } 2745 2746 /* Use default output fields if not specified using -o */ 2747 if (ofield == NULL) 2748 ofield = deffields; 2749 do { 2750 if ((delim = strchr(ofield, ',')) != NULL) 2751 *delim = '\0'; 2752 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2753 (void) fprintf(stderr, gettext("invalid type '%s' " 2754 "for -o option\n"), ofield); 2755 return (-1); 2756 } 2757 if (delim != NULL) 2758 ofield = delim + 1; 2759 } while (delim != NULL); 2760 fields[cfield] = USFIELD_LAST; 2761 2762 /* Override output types (-t option) */ 2763 if (tfield != NULL) { 2764 types = 0; 2765 2766 do { 2767 boolean_t found = B_FALSE; 2768 2769 if ((delim = strchr(tfield, ',')) != NULL) 2770 *delim = '\0'; 2771 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2772 i++) { 2773 if (strcmp(tfield, us_type_names[i]) == 0) { 2774 found = B_TRUE; 2775 types |= us_type_bits[i]; 2776 break; 2777 } 2778 } 2779 if (!found) { 2780 (void) fprintf(stderr, gettext("invalid type " 2781 "'%s' for -t option\n"), tfield); 2782 return (-1); 2783 } 2784 if (delim != NULL) 2785 tfield = delim + 1; 2786 } while (delim != NULL); 2787 } 2788 2789 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2790 return (1); 2791 2792 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2793 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2794 nomem(); 2795 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2796 nomem(); 2797 2798 /* Always add default sorting columns */ 2799 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2800 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2801 2802 cb.cb_sortcol = sortcol; 2803 cb.cb_numname = prtnum; 2804 cb.cb_nicenum = !parsable; 2805 cb.cb_avl_pool = avl_pool; 2806 cb.cb_avl = avl_tree; 2807 cb.cb_sid2posix = sid2posix; 2808 2809 for (i = 0; i < USFIELD_LAST; i++) 2810 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2811 2812 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2813 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2814 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2815 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2816 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2817 continue; 2818 cb.cb_prop = p; 2819 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2820 return (ret); 2821 } 2822 2823 /* Sort the list */ 2824 if ((node = uu_avl_first(avl_tree)) == NULL) 2825 return (0); 2826 2827 us_populated = B_TRUE; 2828 2829 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2830 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2831 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2832 uu_list_node_init(node, &node->usn_listnode, listpool); 2833 2834 while (node != NULL) { 2835 rmnode = node; 2836 node = uu_avl_next(avl_tree, node); 2837 uu_avl_remove(avl_tree, rmnode); 2838 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2839 uu_list_insert(list, rmnode, idx2); 2840 } 2841 2842 for (node = uu_list_first(list); node != NULL; 2843 node = uu_list_next(list, node)) { 2844 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2845 2846 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2847 uu_avl_insert(avl_tree, node, idx); 2848 } 2849 2850 uu_list_destroy(list); 2851 uu_list_pool_destroy(listpool); 2852 2853 /* Print and free node nvlist memory */ 2854 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2855 cb.cb_avl); 2856 2857 zfs_free_sort_columns(sortcol); 2858 2859 /* Clean up the AVL tree */ 2860 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2861 nomem(); 2862 2863 while ((node = uu_avl_walk_next(walk)) != NULL) { 2864 uu_avl_remove(cb.cb_avl, node); 2865 free(node); 2866 } 2867 2868 uu_avl_walk_end(walk); 2869 uu_avl_destroy(avl_tree); 2870 uu_avl_pool_destroy(avl_pool); 2871 2872 return (ret); 2873 } 2874 2875 /* 2876 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2877 * [-t type[,...]] [filesystem|volume|snapshot] ... 2878 * 2879 * -H Scripted mode; elide headers and separate columns by tabs. 2880 * -p Display values in parsable (literal) format. 2881 * -r Recurse over all children. 2882 * -d Limit recursion by depth. 2883 * -o Control which fields to display. 2884 * -s Specify sort columns, descending order. 2885 * -S Specify sort columns, ascending order. 2886 * -t Control which object types to display. 2887 * 2888 * When given no arguments, list all filesystems in the system. 2889 * Otherwise, list the specified datasets, optionally recursing down them if 2890 * '-r' is specified. 2891 */ 2892 typedef struct list_cbdata { 2893 boolean_t cb_first; 2894 boolean_t cb_literal; 2895 boolean_t cb_scripted; 2896 zprop_list_t *cb_proplist; 2897 } list_cbdata_t; 2898 2899 /* 2900 * Given a list of columns to display, output appropriate headers for each one. 2901 */ 2902 static void 2903 print_header(list_cbdata_t *cb) 2904 { 2905 zprop_list_t *pl = cb->cb_proplist; 2906 char headerbuf[ZFS_MAXPROPLEN]; 2907 const char *header; 2908 int i; 2909 boolean_t first = B_TRUE; 2910 boolean_t right_justify; 2911 2912 for (; pl != NULL; pl = pl->pl_next) { 2913 if (!first) { 2914 (void) printf(" "); 2915 } else { 2916 first = B_FALSE; 2917 } 2918 2919 right_justify = B_FALSE; 2920 if (pl->pl_prop != ZPROP_INVAL) { 2921 header = zfs_prop_column_name(pl->pl_prop); 2922 right_justify = zfs_prop_align_right(pl->pl_prop); 2923 } else { 2924 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2925 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2926 headerbuf[i] = '\0'; 2927 header = headerbuf; 2928 } 2929 2930 if (pl->pl_next == NULL && !right_justify) 2931 (void) printf("%s", header); 2932 else if (right_justify) 2933 (void) printf("%*s", pl->pl_width, header); 2934 else 2935 (void) printf("%-*s", pl->pl_width, header); 2936 } 2937 2938 (void) printf("\n"); 2939 } 2940 2941 /* 2942 * Given a dataset and a list of fields, print out all the properties according 2943 * to the described layout. 2944 */ 2945 static void 2946 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2947 { 2948 zprop_list_t *pl = cb->cb_proplist; 2949 boolean_t first = B_TRUE; 2950 char property[ZFS_MAXPROPLEN]; 2951 nvlist_t *userprops = zfs_get_user_props(zhp); 2952 nvlist_t *propval; 2953 char *propstr; 2954 boolean_t right_justify; 2955 2956 for (; pl != NULL; pl = pl->pl_next) { 2957 if (!first) { 2958 if (cb->cb_scripted) 2959 (void) printf("\t"); 2960 else 2961 (void) printf(" "); 2962 } else { 2963 first = B_FALSE; 2964 } 2965 2966 if (pl->pl_prop != ZPROP_INVAL) { 2967 if (zfs_prop_get(zhp, pl->pl_prop, property, 2968 sizeof (property), NULL, NULL, 0, 2969 cb->cb_literal) != 0) 2970 propstr = "-"; 2971 else 2972 propstr = property; 2973 right_justify = zfs_prop_align_right(pl->pl_prop); 2974 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2975 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2976 property, sizeof (property), cb->cb_literal) != 0) 2977 propstr = "-"; 2978 else 2979 propstr = property; 2980 right_justify = B_TRUE; 2981 } else if (zfs_prop_written(pl->pl_user_prop)) { 2982 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2983 property, sizeof (property), cb->cb_literal) != 0) 2984 propstr = "-"; 2985 else 2986 propstr = property; 2987 right_justify = B_TRUE; 2988 } else { 2989 if (nvlist_lookup_nvlist(userprops, 2990 pl->pl_user_prop, &propval) != 0) 2991 propstr = "-"; 2992 else 2993 verify(nvlist_lookup_string(propval, 2994 ZPROP_VALUE, &propstr) == 0); 2995 right_justify = B_FALSE; 2996 } 2997 2998 /* 2999 * If this is being called in scripted mode, or if this is the 3000 * last column and it is left-justified, don't include a width 3001 * format specifier. 3002 */ 3003 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3004 (void) printf("%s", propstr); 3005 else if (right_justify) 3006 (void) printf("%*s", pl->pl_width, propstr); 3007 else 3008 (void) printf("%-*s", pl->pl_width, propstr); 3009 } 3010 3011 (void) printf("\n"); 3012 } 3013 3014 /* 3015 * Generic callback function to list a dataset or snapshot. 3016 */ 3017 static int 3018 list_callback(zfs_handle_t *zhp, void *data) 3019 { 3020 list_cbdata_t *cbp = data; 3021 3022 if (cbp->cb_first) { 3023 if (!cbp->cb_scripted) 3024 print_header(cbp); 3025 cbp->cb_first = B_FALSE; 3026 } 3027 3028 print_dataset(zhp, cbp); 3029 3030 return (0); 3031 } 3032 3033 static int 3034 zfs_do_list(int argc, char **argv) 3035 { 3036 int c; 3037 static char default_fields[] = 3038 "name,used,available,referenced,mountpoint"; 3039 int types = ZFS_TYPE_DATASET; 3040 boolean_t types_specified = B_FALSE; 3041 char *fields = NULL; 3042 list_cbdata_t cb = { 0 }; 3043 char *value; 3044 int limit = 0; 3045 int ret = 0; 3046 zfs_sort_column_t *sortcol = NULL; 3047 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3048 3049 /* check options */ 3050 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3051 switch (c) { 3052 case 'o': 3053 fields = optarg; 3054 break; 3055 case 'p': 3056 cb.cb_literal = B_TRUE; 3057 flags |= ZFS_ITER_LITERAL_PROPS; 3058 break; 3059 case 'd': 3060 limit = parse_depth(optarg, &flags); 3061 break; 3062 case 'r': 3063 flags |= ZFS_ITER_RECURSE; 3064 break; 3065 case 'H': 3066 cb.cb_scripted = B_TRUE; 3067 break; 3068 case 's': 3069 if (zfs_add_sort_column(&sortcol, optarg, 3070 B_FALSE) != 0) { 3071 (void) fprintf(stderr, 3072 gettext("invalid property '%s'\n"), optarg); 3073 usage(B_FALSE); 3074 } 3075 break; 3076 case 'S': 3077 if (zfs_add_sort_column(&sortcol, optarg, 3078 B_TRUE) != 0) { 3079 (void) fprintf(stderr, 3080 gettext("invalid property '%s'\n"), optarg); 3081 usage(B_FALSE); 3082 } 3083 break; 3084 case 't': 3085 types = 0; 3086 types_specified = B_TRUE; 3087 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3088 while (*optarg != '\0') { 3089 static char *type_subopts[] = { "filesystem", 3090 "volume", "snapshot", "snap", "bookmark", 3091 "all", NULL }; 3092 3093 switch (getsubopt(&optarg, type_subopts, 3094 &value)) { 3095 case 0: 3096 types |= ZFS_TYPE_FILESYSTEM; 3097 break; 3098 case 1: 3099 types |= ZFS_TYPE_VOLUME; 3100 break; 3101 case 2: 3102 case 3: 3103 types |= ZFS_TYPE_SNAPSHOT; 3104 break; 3105 case 4: 3106 types |= ZFS_TYPE_BOOKMARK; 3107 break; 3108 case 5: 3109 types = ZFS_TYPE_DATASET | 3110 ZFS_TYPE_BOOKMARK; 3111 break; 3112 default: 3113 (void) fprintf(stderr, 3114 gettext("invalid type '%s'\n"), 3115 value); 3116 usage(B_FALSE); 3117 } 3118 } 3119 break; 3120 case ':': 3121 (void) fprintf(stderr, gettext("missing argument for " 3122 "'%c' option\n"), optopt); 3123 usage(B_FALSE); 3124 break; 3125 case '?': 3126 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3127 optopt); 3128 usage(B_FALSE); 3129 } 3130 } 3131 3132 argc -= optind; 3133 argv += optind; 3134 3135 if (fields == NULL) 3136 fields = default_fields; 3137 3138 /* 3139 * If "-o space" and no types were specified, don't display snapshots. 3140 */ 3141 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3142 types &= ~ZFS_TYPE_SNAPSHOT; 3143 3144 /* 3145 * If the user specifies '-o all', the zprop_get_list() doesn't 3146 * normally include the name of the dataset. For 'zfs list', we always 3147 * want this property to be first. 3148 */ 3149 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3150 != 0) 3151 usage(B_FALSE); 3152 3153 cb.cb_first = B_TRUE; 3154 3155 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3156 limit, list_callback, &cb); 3157 3158 zprop_free_list(cb.cb_proplist); 3159 zfs_free_sort_columns(sortcol); 3160 3161 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3162 (void) printf(gettext("no datasets available\n")); 3163 3164 return (ret); 3165 } 3166 3167 /* 3168 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3169 * zfs rename [-f] -p <fs | vol> <fs | vol> 3170 * zfs rename -r <snap> <snap> 3171 * 3172 * Renames the given dataset to another of the same type. 3173 * 3174 * The '-p' flag creates all the non-existing ancestors of the target first. 3175 */ 3176 /* ARGSUSED */ 3177 static int 3178 zfs_do_rename(int argc, char **argv) 3179 { 3180 zfs_handle_t *zhp; 3181 int c; 3182 int ret = 0; 3183 boolean_t recurse = B_FALSE; 3184 boolean_t parents = B_FALSE; 3185 boolean_t force_unmount = B_FALSE; 3186 3187 /* check options */ 3188 while ((c = getopt(argc, argv, "prf")) != -1) { 3189 switch (c) { 3190 case 'p': 3191 parents = B_TRUE; 3192 break; 3193 case 'r': 3194 recurse = B_TRUE; 3195 break; 3196 case 'f': 3197 force_unmount = B_TRUE; 3198 break; 3199 case '?': 3200 default: 3201 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3202 optopt); 3203 usage(B_FALSE); 3204 } 3205 } 3206 3207 argc -= optind; 3208 argv += optind; 3209 3210 /* check number of arguments */ 3211 if (argc < 1) { 3212 (void) fprintf(stderr, gettext("missing source dataset " 3213 "argument\n")); 3214 usage(B_FALSE); 3215 } 3216 if (argc < 2) { 3217 (void) fprintf(stderr, gettext("missing target dataset " 3218 "argument\n")); 3219 usage(B_FALSE); 3220 } 3221 if (argc > 2) { 3222 (void) fprintf(stderr, gettext("too many arguments\n")); 3223 usage(B_FALSE); 3224 } 3225 3226 if (recurse && parents) { 3227 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3228 "exclusive\n")); 3229 usage(B_FALSE); 3230 } 3231 3232 if (recurse && strchr(argv[0], '@') == 0) { 3233 (void) fprintf(stderr, gettext("source dataset for recursive " 3234 "rename must be a snapshot\n")); 3235 usage(B_FALSE); 3236 } 3237 3238 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3239 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3240 return (1); 3241 3242 /* If we were asked and the name looks good, try to create ancestors. */ 3243 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3244 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3245 zfs_close(zhp); 3246 return (1); 3247 } 3248 3249 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3250 3251 zfs_close(zhp); 3252 return (ret); 3253 } 3254 3255 /* 3256 * zfs promote <fs> 3257 * 3258 * Promotes the given clone fs to be the parent 3259 */ 3260 /* ARGSUSED */ 3261 static int 3262 zfs_do_promote(int argc, char **argv) 3263 { 3264 zfs_handle_t *zhp; 3265 int ret = 0; 3266 3267 /* check options */ 3268 if (argc > 1 && argv[1][0] == '-') { 3269 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3270 argv[1][1]); 3271 usage(B_FALSE); 3272 } 3273 3274 /* check number of arguments */ 3275 if (argc < 2) { 3276 (void) fprintf(stderr, gettext("missing clone filesystem" 3277 " argument\n")); 3278 usage(B_FALSE); 3279 } 3280 if (argc > 2) { 3281 (void) fprintf(stderr, gettext("too many arguments\n")); 3282 usage(B_FALSE); 3283 } 3284 3285 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3286 if (zhp == NULL) 3287 return (1); 3288 3289 ret = (zfs_promote(zhp) != 0); 3290 3291 3292 zfs_close(zhp); 3293 return (ret); 3294 } 3295 3296 /* 3297 * zfs rollback [-rRf] <snapshot> 3298 * 3299 * -r Delete any intervening snapshots before doing rollback 3300 * -R Delete any snapshots and their clones 3301 * -f ignored for backwards compatability 3302 * 3303 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3304 * since then and making it the active dataset. If more recent snapshots exist, 3305 * the command will complain unless the '-r' flag is given. 3306 */ 3307 typedef struct rollback_cbdata { 3308 uint64_t cb_create; 3309 boolean_t cb_first; 3310 int cb_doclones; 3311 char *cb_target; 3312 int cb_error; 3313 boolean_t cb_recurse; 3314 } rollback_cbdata_t; 3315 3316 static int 3317 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3318 { 3319 rollback_cbdata_t *cbp = data; 3320 3321 if (cbp->cb_first && cbp->cb_recurse) { 3322 (void) fprintf(stderr, gettext("cannot rollback to " 3323 "'%s': clones of previous snapshots exist\n"), 3324 cbp->cb_target); 3325 (void) fprintf(stderr, gettext("use '-R' to " 3326 "force deletion of the following clones and " 3327 "dependents:\n")); 3328 cbp->cb_first = 0; 3329 cbp->cb_error = 1; 3330 } 3331 3332 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3333 3334 zfs_close(zhp); 3335 return (0); 3336 } 3337 3338 /* 3339 * Report any snapshots more recent than the one specified. Used when '-r' is 3340 * not specified. We reuse this same callback for the snapshot dependents - if 3341 * 'cb_dependent' is set, then this is a dependent and we should report it 3342 * without checking the transaction group. 3343 */ 3344 static int 3345 rollback_check(zfs_handle_t *zhp, void *data) 3346 { 3347 rollback_cbdata_t *cbp = data; 3348 3349 if (cbp->cb_doclones) { 3350 zfs_close(zhp); 3351 return (0); 3352 } 3353 3354 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3355 if (cbp->cb_first && !cbp->cb_recurse) { 3356 (void) fprintf(stderr, gettext("cannot " 3357 "rollback to '%s': more recent snapshots " 3358 "or bookmarks exist\n"), 3359 cbp->cb_target); 3360 (void) fprintf(stderr, gettext("use '-r' to " 3361 "force deletion of the following " 3362 "snapshots and bookmarks:\n")); 3363 cbp->cb_first = 0; 3364 cbp->cb_error = 1; 3365 } 3366 3367 if (cbp->cb_recurse) { 3368 if (zfs_iter_dependents(zhp, B_TRUE, 3369 rollback_check_dependent, cbp) != 0) { 3370 zfs_close(zhp); 3371 return (-1); 3372 } 3373 } else { 3374 (void) fprintf(stderr, "%s\n", 3375 zfs_get_name(zhp)); 3376 } 3377 } 3378 zfs_close(zhp); 3379 return (0); 3380 } 3381 3382 static int 3383 zfs_do_rollback(int argc, char **argv) 3384 { 3385 int ret = 0; 3386 int c; 3387 boolean_t force = B_FALSE; 3388 rollback_cbdata_t cb = { 0 }; 3389 zfs_handle_t *zhp, *snap; 3390 char parentname[ZFS_MAXNAMELEN]; 3391 char *delim; 3392 3393 /* check options */ 3394 while ((c = getopt(argc, argv, "rRf")) != -1) { 3395 switch (c) { 3396 case 'r': 3397 cb.cb_recurse = 1; 3398 break; 3399 case 'R': 3400 cb.cb_recurse = 1; 3401 cb.cb_doclones = 1; 3402 break; 3403 case 'f': 3404 force = B_TRUE; 3405 break; 3406 case '?': 3407 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3408 optopt); 3409 usage(B_FALSE); 3410 } 3411 } 3412 3413 argc -= optind; 3414 argv += optind; 3415 3416 /* check number of arguments */ 3417 if (argc < 1) { 3418 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3419 usage(B_FALSE); 3420 } 3421 if (argc > 1) { 3422 (void) fprintf(stderr, gettext("too many arguments\n")); 3423 usage(B_FALSE); 3424 } 3425 3426 /* open the snapshot */ 3427 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3428 return (1); 3429 3430 /* open the parent dataset */ 3431 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3432 verify((delim = strrchr(parentname, '@')) != NULL); 3433 *delim = '\0'; 3434 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3435 zfs_close(snap); 3436 return (1); 3437 } 3438 3439 /* 3440 * Check for more recent snapshots and/or clones based on the presence 3441 * of '-r' and '-R'. 3442 */ 3443 cb.cb_target = argv[0]; 3444 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3445 cb.cb_first = B_TRUE; 3446 cb.cb_error = 0; 3447 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3448 goto out; 3449 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3450 goto out; 3451 3452 if ((ret = cb.cb_error) != 0) 3453 goto out; 3454 3455 /* 3456 * Rollback parent to the given snapshot. 3457 */ 3458 ret = zfs_rollback(zhp, snap, force); 3459 3460 out: 3461 zfs_close(snap); 3462 zfs_close(zhp); 3463 3464 if (ret == 0) 3465 return (0); 3466 else 3467 return (1); 3468 } 3469 3470 /* 3471 * zfs set property=value ... { fs | snap | vol } ... 3472 * 3473 * Sets the given properties for all datasets specified on the command line. 3474 */ 3475 3476 static int 3477 set_callback(zfs_handle_t *zhp, void *data) 3478 { 3479 nvlist_t *props = data; 3480 3481 if (zfs_prop_set_list(zhp, props) != 0) { 3482 switch (libzfs_errno(g_zfs)) { 3483 case EZFS_MOUNTFAILED: 3484 (void) fprintf(stderr, gettext("property may be set " 3485 "but unable to remount filesystem\n")); 3486 break; 3487 case EZFS_SHARENFSFAILED: 3488 (void) fprintf(stderr, gettext("property may be set " 3489 "but unable to reshare filesystem\n")); 3490 break; 3491 } 3492 return (1); 3493 } 3494 return (0); 3495 } 3496 3497 static int 3498 zfs_do_set(int argc, char **argv) 3499 { 3500 nvlist_t *props = NULL; 3501 int ds_start = -1; /* argv idx of first dataset arg */ 3502 int ret = 0; 3503 3504 /* check for options */ 3505 if (argc > 1 && argv[1][0] == '-') { 3506 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3507 argv[1][1]); 3508 usage(B_FALSE); 3509 } 3510 3511 /* check number of arguments */ 3512 if (argc < 2) { 3513 (void) fprintf(stderr, gettext("missing arguments\n")); 3514 usage(B_FALSE); 3515 } 3516 if (argc < 3) { 3517 if (strchr(argv[1], '=') == NULL) { 3518 (void) fprintf(stderr, gettext("missing property=value " 3519 "argument(s)\n")); 3520 } else { 3521 (void) fprintf(stderr, gettext("missing dataset " 3522 "name(s)\n")); 3523 } 3524 usage(B_FALSE); 3525 } 3526 3527 /* validate argument order: prop=val args followed by dataset args */ 3528 for (int i = 1; i < argc; i++) { 3529 if (strchr(argv[i], '=') != NULL) { 3530 if (ds_start > 0) { 3531 /* out-of-order prop=val argument */ 3532 (void) fprintf(stderr, gettext("invalid " 3533 "argument order\n"), i); 3534 usage(B_FALSE); 3535 } 3536 } else if (ds_start < 0) { 3537 ds_start = i; 3538 } 3539 } 3540 if (ds_start < 0) { 3541 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3542 usage(B_FALSE); 3543 } 3544 3545 /* Populate a list of property settings */ 3546 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3547 nomem(); 3548 for (int i = 1; i < ds_start; i++) { 3549 if ((ret = parseprop(props, argv[i])) != 0) 3550 goto error; 3551 } 3552 3553 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3554 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3555 3556 error: 3557 nvlist_free(props); 3558 return (ret); 3559 } 3560 3561 typedef struct snap_cbdata { 3562 nvlist_t *sd_nvl; 3563 boolean_t sd_recursive; 3564 const char *sd_snapname; 3565 } snap_cbdata_t; 3566 3567 static int 3568 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3569 { 3570 snap_cbdata_t *sd = arg; 3571 char *name; 3572 int rv = 0; 3573 int error; 3574 3575 if (sd->sd_recursive && 3576 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3577 zfs_close(zhp); 3578 return (0); 3579 } 3580 3581 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3582 if (error == -1) 3583 nomem(); 3584 fnvlist_add_boolean(sd->sd_nvl, name); 3585 free(name); 3586 3587 if (sd->sd_recursive) 3588 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3589 zfs_close(zhp); 3590 return (rv); 3591 } 3592 3593 /* 3594 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3595 * 3596 * Creates a snapshot with the given name. While functionally equivalent to 3597 * 'zfs create', it is a separate command to differentiate intent. 3598 */ 3599 static int 3600 zfs_do_snapshot(int argc, char **argv) 3601 { 3602 int ret = 0; 3603 char c; 3604 nvlist_t *props; 3605 snap_cbdata_t sd = { 0 }; 3606 boolean_t multiple_snaps = B_FALSE; 3607 3608 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3609 nomem(); 3610 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3611 nomem(); 3612 3613 /* check options */ 3614 while ((c = getopt(argc, argv, "ro:")) != -1) { 3615 switch (c) { 3616 case 'o': 3617 if (parseprop(props, optarg) != 0) 3618 return (1); 3619 break; 3620 case 'r': 3621 sd.sd_recursive = B_TRUE; 3622 multiple_snaps = B_TRUE; 3623 break; 3624 case '?': 3625 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3626 optopt); 3627 goto usage; 3628 } 3629 } 3630 3631 argc -= optind; 3632 argv += optind; 3633 3634 /* check number of arguments */ 3635 if (argc < 1) { 3636 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3637 goto usage; 3638 } 3639 3640 if (argc > 1) 3641 multiple_snaps = B_TRUE; 3642 for (; argc > 0; argc--, argv++) { 3643 char *atp; 3644 zfs_handle_t *zhp; 3645 3646 atp = strchr(argv[0], '@'); 3647 if (atp == NULL) 3648 goto usage; 3649 *atp = '\0'; 3650 sd.sd_snapname = atp + 1; 3651 zhp = zfs_open(g_zfs, argv[0], 3652 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3653 if (zhp == NULL) 3654 goto usage; 3655 if (zfs_snapshot_cb(zhp, &sd) != 0) 3656 goto usage; 3657 } 3658 3659 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3660 nvlist_free(sd.sd_nvl); 3661 nvlist_free(props); 3662 if (ret != 0 && multiple_snaps) 3663 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3664 return (ret != 0); 3665 3666 usage: 3667 nvlist_free(sd.sd_nvl); 3668 nvlist_free(props); 3669 usage(B_FALSE); 3670 return (-1); 3671 } 3672 3673 /* 3674 * Send a backup stream to stdout. 3675 */ 3676 static int 3677 zfs_do_send(int argc, char **argv) 3678 { 3679 char *fromname = NULL; 3680 char *toname = NULL; 3681 char *resume_token = NULL; 3682 char *cp; 3683 zfs_handle_t *zhp; 3684 sendflags_t flags = { 0 }; 3685 int c, err; 3686 nvlist_t *dbgnv = NULL; 3687 boolean_t extraverbose = B_FALSE; 3688 3689 /* check options */ 3690 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3691 switch (c) { 3692 case 'i': 3693 if (fromname) 3694 usage(B_FALSE); 3695 fromname = optarg; 3696 break; 3697 case 'I': 3698 if (fromname) 3699 usage(B_FALSE); 3700 fromname = optarg; 3701 flags.doall = B_TRUE; 3702 break; 3703 case 'R': 3704 flags.replicate = B_TRUE; 3705 break; 3706 case 'p': 3707 flags.props = B_TRUE; 3708 break; 3709 case 'P': 3710 flags.parsable = B_TRUE; 3711 flags.verbose = B_TRUE; 3712 break; 3713 case 'v': 3714 if (flags.verbose) 3715 extraverbose = B_TRUE; 3716 flags.verbose = B_TRUE; 3717 flags.progress = B_TRUE; 3718 break; 3719 case 'D': 3720 flags.dedup = B_TRUE; 3721 break; 3722 case 'n': 3723 flags.dryrun = B_TRUE; 3724 break; 3725 case 'L': 3726 flags.largeblock = B_TRUE; 3727 break; 3728 case 'e': 3729 flags.embed_data = B_TRUE; 3730 break; 3731 case 't': 3732 resume_token = optarg; 3733 break; 3734 case ':': 3735 (void) fprintf(stderr, gettext("missing argument for " 3736 "'%c' option\n"), optopt); 3737 usage(B_FALSE); 3738 break; 3739 case '?': 3740 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3741 optopt); 3742 usage(B_FALSE); 3743 } 3744 } 3745 3746 argc -= optind; 3747 argv += optind; 3748 3749 if (resume_token != NULL) { 3750 if (fromname != NULL || flags.replicate || flags.props || 3751 flags.dedup) { 3752 (void) fprintf(stderr, 3753 gettext("invalid flags combined with -t\n")); 3754 usage(B_FALSE); 3755 } 3756 if (argc != 0) { 3757 (void) fprintf(stderr, gettext("no additional " 3758 "arguments are permitted with -t\n")); 3759 usage(B_FALSE); 3760 } 3761 } else { 3762 if (argc < 1) { 3763 (void) fprintf(stderr, 3764 gettext("missing snapshot argument\n")); 3765 usage(B_FALSE); 3766 } 3767 if (argc > 1) { 3768 (void) fprintf(stderr, gettext("too many arguments\n")); 3769 usage(B_FALSE); 3770 } 3771 } 3772 3773 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3774 (void) fprintf(stderr, 3775 gettext("Error: Stream can not be written to a terminal.\n" 3776 "You must redirect standard output.\n")); 3777 return (1); 3778 } 3779 3780 if (resume_token != NULL) { 3781 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3782 resume_token)); 3783 } 3784 3785 /* 3786 * Special case sending a filesystem, or from a bookmark. 3787 */ 3788 if (strchr(argv[0], '@') == NULL || 3789 (fromname && strchr(fromname, '#') != NULL)) { 3790 char frombuf[ZFS_MAXNAMELEN]; 3791 enum lzc_send_flags lzc_flags = 0; 3792 3793 if (flags.replicate || flags.doall || flags.props || 3794 flags.dedup || flags.dryrun || flags.verbose || 3795 flags.progress) { 3796 (void) fprintf(stderr, 3797 gettext("Error: " 3798 "Unsupported flag with filesystem or bookmark.\n")); 3799 return (1); 3800 } 3801 3802 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3803 if (zhp == NULL) 3804 return (1); 3805 3806 if (flags.largeblock) 3807 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3808 if (flags.embed_data) 3809 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3810 3811 if (fromname != NULL && 3812 (fromname[0] == '#' || fromname[0] == '@')) { 3813 /* 3814 * Incremental source name begins with # or @. 3815 * Default to same fs as target. 3816 */ 3817 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3818 cp = strchr(frombuf, '@'); 3819 if (cp != NULL) 3820 *cp = '\0'; 3821 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3822 fromname = frombuf; 3823 } 3824 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3825 zfs_close(zhp); 3826 return (err != 0); 3827 } 3828 3829 cp = strchr(argv[0], '@'); 3830 *cp = '\0'; 3831 toname = cp + 1; 3832 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3833 if (zhp == NULL) 3834 return (1); 3835 3836 /* 3837 * If they specified the full path to the snapshot, chop off 3838 * everything except the short name of the snapshot, but special 3839 * case if they specify the origin. 3840 */ 3841 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3842 char origin[ZFS_MAXNAMELEN]; 3843 zprop_source_t src; 3844 3845 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3846 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3847 3848 if (strcmp(origin, fromname) == 0) { 3849 fromname = NULL; 3850 flags.fromorigin = B_TRUE; 3851 } else { 3852 *cp = '\0'; 3853 if (cp != fromname && strcmp(argv[0], fromname)) { 3854 (void) fprintf(stderr, 3855 gettext("incremental source must be " 3856 "in same filesystem\n")); 3857 usage(B_FALSE); 3858 } 3859 fromname = cp + 1; 3860 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3861 (void) fprintf(stderr, 3862 gettext("invalid incremental source\n")); 3863 usage(B_FALSE); 3864 } 3865 } 3866 } 3867 3868 if (flags.replicate && fromname == NULL) 3869 flags.doall = B_TRUE; 3870 3871 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3872 extraverbose ? &dbgnv : NULL); 3873 3874 if (extraverbose && dbgnv != NULL) { 3875 /* 3876 * dump_nvlist prints to stdout, but that's been 3877 * redirected to a file. Make it print to stderr 3878 * instead. 3879 */ 3880 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3881 dump_nvlist(dbgnv, 0); 3882 nvlist_free(dbgnv); 3883 } 3884 zfs_close(zhp); 3885 3886 return (err != 0); 3887 } 3888 3889 /* 3890 * Restore a backup stream from stdin. 3891 */ 3892 static int 3893 zfs_do_receive(int argc, char **argv) 3894 { 3895 int c, err; 3896 recvflags_t flags = { 0 }; 3897 boolean_t abort_resumable = B_FALSE; 3898 3899 nvlist_t *props; 3900 nvpair_t *nvp = NULL; 3901 3902 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3903 nomem(); 3904 3905 /* check options */ 3906 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3907 switch (c) { 3908 case 'o': 3909 if (parseprop(props, optarg) != 0) 3910 return (1); 3911 break; 3912 case 'd': 3913 flags.isprefix = B_TRUE; 3914 break; 3915 case 'e': 3916 flags.isprefix = B_TRUE; 3917 flags.istail = B_TRUE; 3918 break; 3919 case 'n': 3920 flags.dryrun = B_TRUE; 3921 break; 3922 case 'u': 3923 flags.nomount = B_TRUE; 3924 break; 3925 case 'v': 3926 flags.verbose = B_TRUE; 3927 break; 3928 case 's': 3929 flags.resumable = B_TRUE; 3930 break; 3931 case 'F': 3932 flags.force = B_TRUE; 3933 break; 3934 case 'A': 3935 abort_resumable = B_TRUE; 3936 break; 3937 case ':': 3938 (void) fprintf(stderr, gettext("missing argument for " 3939 "'%c' option\n"), optopt); 3940 usage(B_FALSE); 3941 break; 3942 case '?': 3943 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3944 optopt); 3945 usage(B_FALSE); 3946 } 3947 } 3948 3949 argc -= optind; 3950 argv += optind; 3951 3952 /* check number of arguments */ 3953 if (argc < 1) { 3954 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3955 usage(B_FALSE); 3956 } 3957 if (argc > 1) { 3958 (void) fprintf(stderr, gettext("too many arguments\n")); 3959 usage(B_FALSE); 3960 } 3961 3962 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3963 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3964 (void) fprintf(stderr, gettext("invalid option")); 3965 usage(B_FALSE); 3966 } 3967 } 3968 3969 if (abort_resumable) { 3970 if (flags.isprefix || flags.istail || flags.dryrun || 3971 flags.resumable || flags.nomount) { 3972 (void) fprintf(stderr, gettext("invalid option")); 3973 usage(B_FALSE); 3974 } 3975 3976 char namebuf[ZFS_MAXNAMELEN]; 3977 (void) snprintf(namebuf, sizeof (namebuf), 3978 "%s/%%recv", argv[0]); 3979 3980 if (zfs_dataset_exists(g_zfs, namebuf, 3981 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 3982 zfs_handle_t *zhp = zfs_open(g_zfs, 3983 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3984 if (zhp == NULL) 3985 return (1); 3986 err = zfs_destroy(zhp, B_FALSE); 3987 } else { 3988 zfs_handle_t *zhp = zfs_open(g_zfs, 3989 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3990 if (zhp == NULL) 3991 usage(B_FALSE); 3992 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 3993 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 3994 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 3995 (void) fprintf(stderr, 3996 gettext("'%s' does not have any " 3997 "resumable receive state to abort\n"), 3998 argv[0]); 3999 return (1); 4000 } 4001 err = zfs_destroy(zhp, B_FALSE); 4002 } 4003 4004 return (err != 0); 4005 } 4006 4007 if (isatty(STDIN_FILENO)) { 4008 (void) fprintf(stderr, 4009 gettext("Error: Backup stream can not be read " 4010 "from a terminal.\n" 4011 "You must redirect standard input.\n")); 4012 return (1); 4013 } 4014 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4015 4016 return (err != 0); 4017 } 4018 4019 /* 4020 * allow/unallow stuff 4021 */ 4022 /* copied from zfs/sys/dsl_deleg.h */ 4023 #define ZFS_DELEG_PERM_CREATE "create" 4024 #define ZFS_DELEG_PERM_DESTROY "destroy" 4025 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4026 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4027 #define ZFS_DELEG_PERM_CLONE "clone" 4028 #define ZFS_DELEG_PERM_PROMOTE "promote" 4029 #define ZFS_DELEG_PERM_RENAME "rename" 4030 #define ZFS_DELEG_PERM_MOUNT "mount" 4031 #define ZFS_DELEG_PERM_SHARE "share" 4032 #define ZFS_DELEG_PERM_SEND "send" 4033 #define ZFS_DELEG_PERM_RECEIVE "receive" 4034 #define ZFS_DELEG_PERM_ALLOW "allow" 4035 #define ZFS_DELEG_PERM_USERPROP "userprop" 4036 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4037 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4038 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4039 #define ZFS_DELEG_PERM_USERUSED "userused" 4040 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4041 #define ZFS_DELEG_PERM_HOLD "hold" 4042 #define ZFS_DELEG_PERM_RELEASE "release" 4043 #define ZFS_DELEG_PERM_DIFF "diff" 4044 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4045 4046 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4047 4048 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4049 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4050 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4051 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4052 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4053 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4054 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4055 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4056 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4057 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4058 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4059 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4060 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4061 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4062 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4063 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4064 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4065 4066 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4067 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4068 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4069 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4070 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4071 { NULL, ZFS_DELEG_NOTE_NONE } 4072 }; 4073 4074 /* permission structure */ 4075 typedef struct deleg_perm { 4076 zfs_deleg_who_type_t dp_who_type; 4077 const char *dp_name; 4078 boolean_t dp_local; 4079 boolean_t dp_descend; 4080 } deleg_perm_t; 4081 4082 /* */ 4083 typedef struct deleg_perm_node { 4084 deleg_perm_t dpn_perm; 4085 4086 uu_avl_node_t dpn_avl_node; 4087 } deleg_perm_node_t; 4088 4089 typedef struct fs_perm fs_perm_t; 4090 4091 /* permissions set */ 4092 typedef struct who_perm { 4093 zfs_deleg_who_type_t who_type; 4094 const char *who_name; /* id */ 4095 char who_ug_name[256]; /* user/group name */ 4096 fs_perm_t *who_fsperm; /* uplink */ 4097 4098 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4099 } who_perm_t; 4100 4101 /* */ 4102 typedef struct who_perm_node { 4103 who_perm_t who_perm; 4104 uu_avl_node_t who_avl_node; 4105 } who_perm_node_t; 4106 4107 typedef struct fs_perm_set fs_perm_set_t; 4108 /* fs permissions */ 4109 struct fs_perm { 4110 const char *fsp_name; 4111 4112 uu_avl_t *fsp_sc_avl; /* sets,create */ 4113 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4114 4115 fs_perm_set_t *fsp_set; /* uplink */ 4116 }; 4117 4118 /* */ 4119 typedef struct fs_perm_node { 4120 fs_perm_t fspn_fsperm; 4121 uu_avl_t *fspn_avl; 4122 4123 uu_list_node_t fspn_list_node; 4124 } fs_perm_node_t; 4125 4126 /* top level structure */ 4127 struct fs_perm_set { 4128 uu_list_pool_t *fsps_list_pool; 4129 uu_list_t *fsps_list; /* list of fs_perms */ 4130 4131 uu_avl_pool_t *fsps_named_set_avl_pool; 4132 uu_avl_pool_t *fsps_who_perm_avl_pool; 4133 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4134 }; 4135 4136 static inline const char * 4137 deleg_perm_type(zfs_deleg_note_t note) 4138 { 4139 /* subcommands */ 4140 switch (note) { 4141 /* SUBCOMMANDS */ 4142 /* OTHER */ 4143 case ZFS_DELEG_NOTE_GROUPQUOTA: 4144 case ZFS_DELEG_NOTE_GROUPUSED: 4145 case ZFS_DELEG_NOTE_USERPROP: 4146 case ZFS_DELEG_NOTE_USERQUOTA: 4147 case ZFS_DELEG_NOTE_USERUSED: 4148 /* other */ 4149 return (gettext("other")); 4150 default: 4151 return (gettext("subcommand")); 4152 } 4153 } 4154 4155 static int inline 4156 who_type2weight(zfs_deleg_who_type_t who_type) 4157 { 4158 int res; 4159 switch (who_type) { 4160 case ZFS_DELEG_NAMED_SET_SETS: 4161 case ZFS_DELEG_NAMED_SET: 4162 res = 0; 4163 break; 4164 case ZFS_DELEG_CREATE_SETS: 4165 case ZFS_DELEG_CREATE: 4166 res = 1; 4167 break; 4168 case ZFS_DELEG_USER_SETS: 4169 case ZFS_DELEG_USER: 4170 res = 2; 4171 break; 4172 case ZFS_DELEG_GROUP_SETS: 4173 case ZFS_DELEG_GROUP: 4174 res = 3; 4175 break; 4176 case ZFS_DELEG_EVERYONE_SETS: 4177 case ZFS_DELEG_EVERYONE: 4178 res = 4; 4179 break; 4180 default: 4181 res = -1; 4182 } 4183 4184 return (res); 4185 } 4186 4187 /* ARGSUSED */ 4188 static int 4189 who_perm_compare(const void *larg, const void *rarg, void *unused) 4190 { 4191 const who_perm_node_t *l = larg; 4192 const who_perm_node_t *r = rarg; 4193 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4194 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4195 int lweight = who_type2weight(ltype); 4196 int rweight = who_type2weight(rtype); 4197 int res = lweight - rweight; 4198 if (res == 0) 4199 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4200 ZFS_MAX_DELEG_NAME-1); 4201 4202 if (res == 0) 4203 return (0); 4204 if (res > 0) 4205 return (1); 4206 else 4207 return (-1); 4208 } 4209 4210 /* ARGSUSED */ 4211 static int 4212 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4213 { 4214 const deleg_perm_node_t *l = larg; 4215 const deleg_perm_node_t *r = rarg; 4216 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4217 ZFS_MAX_DELEG_NAME-1); 4218 4219 if (res == 0) 4220 return (0); 4221 4222 if (res > 0) 4223 return (1); 4224 else 4225 return (-1); 4226 } 4227 4228 static inline void 4229 fs_perm_set_init(fs_perm_set_t *fspset) 4230 { 4231 bzero(fspset, sizeof (fs_perm_set_t)); 4232 4233 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4234 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4235 NULL, UU_DEFAULT)) == NULL) 4236 nomem(); 4237 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4238 UU_DEFAULT)) == NULL) 4239 nomem(); 4240 4241 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4242 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4243 who_perm_node_t, who_avl_node), who_perm_compare, 4244 UU_DEFAULT)) == NULL) 4245 nomem(); 4246 4247 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4248 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4249 who_perm_node_t, who_avl_node), who_perm_compare, 4250 UU_DEFAULT)) == NULL) 4251 nomem(); 4252 4253 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4254 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4255 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4256 == NULL) 4257 nomem(); 4258 } 4259 4260 static inline void fs_perm_fini(fs_perm_t *); 4261 static inline void who_perm_fini(who_perm_t *); 4262 4263 static inline void 4264 fs_perm_set_fini(fs_perm_set_t *fspset) 4265 { 4266 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4267 4268 while (node != NULL) { 4269 fs_perm_node_t *next_node = 4270 uu_list_next(fspset->fsps_list, node); 4271 fs_perm_t *fsperm = &node->fspn_fsperm; 4272 fs_perm_fini(fsperm); 4273 uu_list_remove(fspset->fsps_list, node); 4274 free(node); 4275 node = next_node; 4276 } 4277 4278 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4279 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4280 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4281 } 4282 4283 static inline void 4284 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4285 const char *name) 4286 { 4287 deleg_perm->dp_who_type = type; 4288 deleg_perm->dp_name = name; 4289 } 4290 4291 static inline void 4292 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4293 zfs_deleg_who_type_t type, const char *name) 4294 { 4295 uu_avl_pool_t *pool; 4296 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4297 4298 bzero(who_perm, sizeof (who_perm_t)); 4299 4300 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4301 UU_DEFAULT)) == NULL) 4302 nomem(); 4303 4304 who_perm->who_type = type; 4305 who_perm->who_name = name; 4306 who_perm->who_fsperm = fsperm; 4307 } 4308 4309 static inline void 4310 who_perm_fini(who_perm_t *who_perm) 4311 { 4312 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4313 4314 while (node != NULL) { 4315 deleg_perm_node_t *next_node = 4316 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4317 4318 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4319 free(node); 4320 node = next_node; 4321 } 4322 4323 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4324 } 4325 4326 static inline void 4327 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4328 { 4329 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4330 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4331 4332 bzero(fsperm, sizeof (fs_perm_t)); 4333 4334 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4335 == NULL) 4336 nomem(); 4337 4338 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4339 == NULL) 4340 nomem(); 4341 4342 fsperm->fsp_set = fspset; 4343 fsperm->fsp_name = fsname; 4344 } 4345 4346 static inline void 4347 fs_perm_fini(fs_perm_t *fsperm) 4348 { 4349 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4350 while (node != NULL) { 4351 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4352 node); 4353 who_perm_t *who_perm = &node->who_perm; 4354 who_perm_fini(who_perm); 4355 uu_avl_remove(fsperm->fsp_sc_avl, node); 4356 free(node); 4357 node = next_node; 4358 } 4359 4360 node = uu_avl_first(fsperm->fsp_uge_avl); 4361 while (node != NULL) { 4362 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4363 node); 4364 who_perm_t *who_perm = &node->who_perm; 4365 who_perm_fini(who_perm); 4366 uu_avl_remove(fsperm->fsp_uge_avl, node); 4367 free(node); 4368 node = next_node; 4369 } 4370 4371 uu_avl_destroy(fsperm->fsp_sc_avl); 4372 uu_avl_destroy(fsperm->fsp_uge_avl); 4373 } 4374 4375 static void inline 4376 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4377 zfs_deleg_who_type_t who_type, const char *name, char locality) 4378 { 4379 uu_avl_index_t idx = 0; 4380 4381 deleg_perm_node_t *found_node = NULL; 4382 deleg_perm_t *deleg_perm = &node->dpn_perm; 4383 4384 deleg_perm_init(deleg_perm, who_type, name); 4385 4386 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4387 == NULL) 4388 uu_avl_insert(avl, node, idx); 4389 else { 4390 node = found_node; 4391 deleg_perm = &node->dpn_perm; 4392 } 4393 4394 4395 switch (locality) { 4396 case ZFS_DELEG_LOCAL: 4397 deleg_perm->dp_local = B_TRUE; 4398 break; 4399 case ZFS_DELEG_DESCENDENT: 4400 deleg_perm->dp_descend = B_TRUE; 4401 break; 4402 case ZFS_DELEG_NA: 4403 break; 4404 default: 4405 assert(B_FALSE); /* invalid locality */ 4406 } 4407 } 4408 4409 static inline int 4410 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4411 { 4412 nvpair_t *nvp = NULL; 4413 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4414 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4415 zfs_deleg_who_type_t who_type = who_perm->who_type; 4416 4417 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4418 const char *name = nvpair_name(nvp); 4419 data_type_t type = nvpair_type(nvp); 4420 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4421 deleg_perm_node_t *node = 4422 safe_malloc(sizeof (deleg_perm_node_t)); 4423 4424 assert(type == DATA_TYPE_BOOLEAN); 4425 4426 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4427 set_deleg_perm_node(avl, node, who_type, name, locality); 4428 } 4429 4430 return (0); 4431 } 4432 4433 static inline int 4434 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4435 { 4436 nvpair_t *nvp = NULL; 4437 fs_perm_set_t *fspset = fsperm->fsp_set; 4438 4439 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4440 nvlist_t *nvl2 = NULL; 4441 const char *name = nvpair_name(nvp); 4442 uu_avl_t *avl = NULL; 4443 uu_avl_pool_t *avl_pool; 4444 zfs_deleg_who_type_t perm_type = name[0]; 4445 char perm_locality = name[1]; 4446 const char *perm_name = name + 3; 4447 boolean_t is_set = B_TRUE; 4448 who_perm_t *who_perm = NULL; 4449 4450 assert('$' == name[2]); 4451 4452 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4453 return (-1); 4454 4455 switch (perm_type) { 4456 case ZFS_DELEG_CREATE: 4457 case ZFS_DELEG_CREATE_SETS: 4458 case ZFS_DELEG_NAMED_SET: 4459 case ZFS_DELEG_NAMED_SET_SETS: 4460 avl_pool = fspset->fsps_named_set_avl_pool; 4461 avl = fsperm->fsp_sc_avl; 4462 break; 4463 case ZFS_DELEG_USER: 4464 case ZFS_DELEG_USER_SETS: 4465 case ZFS_DELEG_GROUP: 4466 case ZFS_DELEG_GROUP_SETS: 4467 case ZFS_DELEG_EVERYONE: 4468 case ZFS_DELEG_EVERYONE_SETS: 4469 avl_pool = fspset->fsps_who_perm_avl_pool; 4470 avl = fsperm->fsp_uge_avl; 4471 break; 4472 } 4473 4474 if (is_set) { 4475 who_perm_node_t *found_node = NULL; 4476 who_perm_node_t *node = safe_malloc( 4477 sizeof (who_perm_node_t)); 4478 who_perm = &node->who_perm; 4479 uu_avl_index_t idx = 0; 4480 4481 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4482 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4483 4484 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4485 == NULL) { 4486 if (avl == fsperm->fsp_uge_avl) { 4487 uid_t rid = 0; 4488 struct passwd *p = NULL; 4489 struct group *g = NULL; 4490 const char *nice_name = NULL; 4491 4492 switch (perm_type) { 4493 case ZFS_DELEG_USER_SETS: 4494 case ZFS_DELEG_USER: 4495 rid = atoi(perm_name); 4496 p = getpwuid(rid); 4497 if (p) 4498 nice_name = p->pw_name; 4499 break; 4500 case ZFS_DELEG_GROUP_SETS: 4501 case ZFS_DELEG_GROUP: 4502 rid = atoi(perm_name); 4503 g = getgrgid(rid); 4504 if (g) 4505 nice_name = g->gr_name; 4506 break; 4507 } 4508 4509 if (nice_name != NULL) 4510 (void) strlcpy( 4511 node->who_perm.who_ug_name, 4512 nice_name, 256); 4513 } 4514 4515 uu_avl_insert(avl, node, idx); 4516 } else { 4517 node = found_node; 4518 who_perm = &node->who_perm; 4519 } 4520 } 4521 4522 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4523 } 4524 4525 return (0); 4526 } 4527 4528 static inline int 4529 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4530 { 4531 nvpair_t *nvp = NULL; 4532 uu_avl_index_t idx = 0; 4533 4534 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4535 nvlist_t *nvl2 = NULL; 4536 const char *fsname = nvpair_name(nvp); 4537 data_type_t type = nvpair_type(nvp); 4538 fs_perm_t *fsperm = NULL; 4539 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4540 if (node == NULL) 4541 nomem(); 4542 4543 fsperm = &node->fspn_fsperm; 4544 4545 assert(DATA_TYPE_NVLIST == type); 4546 4547 uu_list_node_init(node, &node->fspn_list_node, 4548 fspset->fsps_list_pool); 4549 4550 idx = uu_list_numnodes(fspset->fsps_list); 4551 fs_perm_init(fsperm, fspset, fsname); 4552 4553 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4554 return (-1); 4555 4556 (void) parse_fs_perm(fsperm, nvl2); 4557 4558 uu_list_insert(fspset->fsps_list, node, idx); 4559 } 4560 4561 return (0); 4562 } 4563 4564 static inline const char * 4565 deleg_perm_comment(zfs_deleg_note_t note) 4566 { 4567 const char *str = ""; 4568 4569 /* subcommands */ 4570 switch (note) { 4571 /* SUBCOMMANDS */ 4572 case ZFS_DELEG_NOTE_ALLOW: 4573 str = gettext("Must also have the permission that is being" 4574 "\n\t\t\t\tallowed"); 4575 break; 4576 case ZFS_DELEG_NOTE_CLONE: 4577 str = gettext("Must also have the 'create' ability and 'mount'" 4578 "\n\t\t\t\tability in the origin file system"); 4579 break; 4580 case ZFS_DELEG_NOTE_CREATE: 4581 str = gettext("Must also have the 'mount' ability"); 4582 break; 4583 case ZFS_DELEG_NOTE_DESTROY: 4584 str = gettext("Must also have the 'mount' ability"); 4585 break; 4586 case ZFS_DELEG_NOTE_DIFF: 4587 str = gettext("Allows lookup of paths within a dataset;" 4588 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4589 "\n\t\t\t\tin order to use zfs diff"); 4590 break; 4591 case ZFS_DELEG_NOTE_HOLD: 4592 str = gettext("Allows adding a user hold to a snapshot"); 4593 break; 4594 case ZFS_DELEG_NOTE_MOUNT: 4595 str = gettext("Allows mount/umount of ZFS datasets"); 4596 break; 4597 case ZFS_DELEG_NOTE_PROMOTE: 4598 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4599 " 'promote' ability in the origin file system"); 4600 break; 4601 case ZFS_DELEG_NOTE_RECEIVE: 4602 str = gettext("Must also have the 'mount' and 'create'" 4603 " ability"); 4604 break; 4605 case ZFS_DELEG_NOTE_RELEASE: 4606 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4607 "might destroy the snapshot"); 4608 break; 4609 case ZFS_DELEG_NOTE_RENAME: 4610 str = gettext("Must also have the 'mount' and 'create'" 4611 "\n\t\t\t\tability in the new parent"); 4612 break; 4613 case ZFS_DELEG_NOTE_ROLLBACK: 4614 str = gettext(""); 4615 break; 4616 case ZFS_DELEG_NOTE_SEND: 4617 str = gettext(""); 4618 break; 4619 case ZFS_DELEG_NOTE_SHARE: 4620 str = gettext("Allows sharing file systems over NFS or SMB" 4621 "\n\t\t\t\tprotocols"); 4622 break; 4623 case ZFS_DELEG_NOTE_SNAPSHOT: 4624 str = gettext(""); 4625 break; 4626 /* 4627 * case ZFS_DELEG_NOTE_VSCAN: 4628 * str = gettext(""); 4629 * break; 4630 */ 4631 /* OTHER */ 4632 case ZFS_DELEG_NOTE_GROUPQUOTA: 4633 str = gettext("Allows accessing any groupquota@... property"); 4634 break; 4635 case ZFS_DELEG_NOTE_GROUPUSED: 4636 str = gettext("Allows reading any groupused@... property"); 4637 break; 4638 case ZFS_DELEG_NOTE_USERPROP: 4639 str = gettext("Allows changing any user property"); 4640 break; 4641 case ZFS_DELEG_NOTE_USERQUOTA: 4642 str = gettext("Allows accessing any userquota@... property"); 4643 break; 4644 case ZFS_DELEG_NOTE_USERUSED: 4645 str = gettext("Allows reading any userused@... property"); 4646 break; 4647 /* other */ 4648 default: 4649 str = ""; 4650 } 4651 4652 return (str); 4653 } 4654 4655 struct allow_opts { 4656 boolean_t local; 4657 boolean_t descend; 4658 boolean_t user; 4659 boolean_t group; 4660 boolean_t everyone; 4661 boolean_t create; 4662 boolean_t set; 4663 boolean_t recursive; /* unallow only */ 4664 boolean_t prt_usage; 4665 4666 boolean_t prt_perms; 4667 char *who; 4668 char *perms; 4669 const char *dataset; 4670 }; 4671 4672 static inline int 4673 prop_cmp(const void *a, const void *b) 4674 { 4675 const char *str1 = *(const char **)a; 4676 const char *str2 = *(const char **)b; 4677 return (strcmp(str1, str2)); 4678 } 4679 4680 static void 4681 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4682 { 4683 const char *opt_desc[] = { 4684 "-h", gettext("show this help message and exit"), 4685 "-l", gettext("set permission locally"), 4686 "-d", gettext("set permission for descents"), 4687 "-u", gettext("set permission for user"), 4688 "-g", gettext("set permission for group"), 4689 "-e", gettext("set permission for everyone"), 4690 "-c", gettext("set create time permission"), 4691 "-s", gettext("define permission set"), 4692 /* unallow only */ 4693 "-r", gettext("remove permissions recursively"), 4694 }; 4695 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4696 size_t allow_size = unallow_size - 2; 4697 const char *props[ZFS_NUM_PROPS]; 4698 int i; 4699 size_t count = 0; 4700 FILE *fp = requested ? stdout : stderr; 4701 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4702 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4703 4704 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4705 HELP_ALLOW)); 4706 (void) fprintf(fp, gettext("Options:\n")); 4707 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4708 const char *opt = opt_desc[i++]; 4709 const char *optdsc = opt_desc[i]; 4710 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4711 } 4712 4713 (void) fprintf(fp, gettext("\nThe following permissions are " 4714 "supported:\n\n")); 4715 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4716 gettext("NOTES")); 4717 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4718 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4719 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4720 const char *perm_type = deleg_perm_type(perm_note); 4721 const char *perm_comment = deleg_perm_comment(perm_note); 4722 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4723 } 4724 4725 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4726 zprop_desc_t *pd = &pdtbl[i]; 4727 if (pd->pd_visible != B_TRUE) 4728 continue; 4729 4730 if (pd->pd_attr == PROP_READONLY) 4731 continue; 4732 4733 props[count++] = pd->pd_name; 4734 } 4735 props[count] = NULL; 4736 4737 qsort(props, count, sizeof (char *), prop_cmp); 4738 4739 for (i = 0; i < count; i++) 4740 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4741 4742 if (msg != NULL) 4743 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4744 4745 exit(requested ? 0 : 2); 4746 } 4747 4748 static inline const char * 4749 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4750 char **permsp) 4751 { 4752 if (un && argc == expected_argc - 1) 4753 *permsp = NULL; 4754 else if (argc == expected_argc) 4755 *permsp = argv[argc - 2]; 4756 else 4757 allow_usage(un, B_FALSE, 4758 gettext("wrong number of parameters\n")); 4759 4760 return (argv[argc - 1]); 4761 } 4762 4763 static void 4764 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4765 { 4766 int uge_sum = opts->user + opts->group + opts->everyone; 4767 int csuge_sum = opts->create + opts->set + uge_sum; 4768 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4769 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4770 4771 if (uge_sum > 1) 4772 allow_usage(un, B_FALSE, 4773 gettext("-u, -g, and -e are mutually exclusive\n")); 4774 4775 if (opts->prt_usage) 4776 if (argc == 0 && all_sum == 0) 4777 allow_usage(un, B_TRUE, NULL); 4778 else 4779 usage(B_FALSE); 4780 4781 if (opts->set) { 4782 if (csuge_sum > 1) 4783 allow_usage(un, B_FALSE, 4784 gettext("invalid options combined with -s\n")); 4785 4786 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4787 if (argv[0][0] != '@') 4788 allow_usage(un, B_FALSE, 4789 gettext("invalid set name: missing '@' prefix\n")); 4790 opts->who = argv[0]; 4791 } else if (opts->create) { 4792 if (ldcsuge_sum > 1) 4793 allow_usage(un, B_FALSE, 4794 gettext("invalid options combined with -c\n")); 4795 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4796 } else if (opts->everyone) { 4797 if (csuge_sum > 1) 4798 allow_usage(un, B_FALSE, 4799 gettext("invalid options combined with -e\n")); 4800 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4801 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4802 == 0) { 4803 opts->everyone = B_TRUE; 4804 argc--; 4805 argv++; 4806 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4807 } else if (argc == 1 && !un) { 4808 opts->prt_perms = B_TRUE; 4809 opts->dataset = argv[argc-1]; 4810 } else { 4811 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4812 opts->who = argv[0]; 4813 } 4814 4815 if (!opts->local && !opts->descend) { 4816 opts->local = B_TRUE; 4817 opts->descend = B_TRUE; 4818 } 4819 } 4820 4821 static void 4822 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4823 const char *who, char *perms, nvlist_t *top_nvl) 4824 { 4825 int i; 4826 char ld[2] = { '\0', '\0' }; 4827 char who_buf[ZFS_MAXNAMELEN+32]; 4828 char base_type; 4829 char set_type; 4830 nvlist_t *base_nvl = NULL; 4831 nvlist_t *set_nvl = NULL; 4832 nvlist_t *nvl; 4833 4834 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4835 nomem(); 4836 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4837 nomem(); 4838 4839 switch (type) { 4840 case ZFS_DELEG_NAMED_SET_SETS: 4841 case ZFS_DELEG_NAMED_SET: 4842 set_type = ZFS_DELEG_NAMED_SET_SETS; 4843 base_type = ZFS_DELEG_NAMED_SET; 4844 ld[0] = ZFS_DELEG_NA; 4845 break; 4846 case ZFS_DELEG_CREATE_SETS: 4847 case ZFS_DELEG_CREATE: 4848 set_type = ZFS_DELEG_CREATE_SETS; 4849 base_type = ZFS_DELEG_CREATE; 4850 ld[0] = ZFS_DELEG_NA; 4851 break; 4852 case ZFS_DELEG_USER_SETS: 4853 case ZFS_DELEG_USER: 4854 set_type = ZFS_DELEG_USER_SETS; 4855 base_type = ZFS_DELEG_USER; 4856 if (local) 4857 ld[0] = ZFS_DELEG_LOCAL; 4858 if (descend) 4859 ld[1] = ZFS_DELEG_DESCENDENT; 4860 break; 4861 case ZFS_DELEG_GROUP_SETS: 4862 case ZFS_DELEG_GROUP: 4863 set_type = ZFS_DELEG_GROUP_SETS; 4864 base_type = ZFS_DELEG_GROUP; 4865 if (local) 4866 ld[0] = ZFS_DELEG_LOCAL; 4867 if (descend) 4868 ld[1] = ZFS_DELEG_DESCENDENT; 4869 break; 4870 case ZFS_DELEG_EVERYONE_SETS: 4871 case ZFS_DELEG_EVERYONE: 4872 set_type = ZFS_DELEG_EVERYONE_SETS; 4873 base_type = ZFS_DELEG_EVERYONE; 4874 if (local) 4875 ld[0] = ZFS_DELEG_LOCAL; 4876 if (descend) 4877 ld[1] = ZFS_DELEG_DESCENDENT; 4878 } 4879 4880 if (perms != NULL) { 4881 char *curr = perms; 4882 char *end = curr + strlen(perms); 4883 4884 while (curr < end) { 4885 char *delim = strchr(curr, ','); 4886 if (delim == NULL) 4887 delim = end; 4888 else 4889 *delim = '\0'; 4890 4891 if (curr[0] == '@') 4892 nvl = set_nvl; 4893 else 4894 nvl = base_nvl; 4895 4896 (void) nvlist_add_boolean(nvl, curr); 4897 if (delim != end) 4898 *delim = ','; 4899 curr = delim + 1; 4900 } 4901 4902 for (i = 0; i < 2; i++) { 4903 char locality = ld[i]; 4904 if (locality == 0) 4905 continue; 4906 4907 if (!nvlist_empty(base_nvl)) { 4908 if (who != NULL) 4909 (void) snprintf(who_buf, 4910 sizeof (who_buf), "%c%c$%s", 4911 base_type, locality, who); 4912 else 4913 (void) snprintf(who_buf, 4914 sizeof (who_buf), "%c%c$", 4915 base_type, locality); 4916 4917 (void) nvlist_add_nvlist(top_nvl, who_buf, 4918 base_nvl); 4919 } 4920 4921 4922 if (!nvlist_empty(set_nvl)) { 4923 if (who != NULL) 4924 (void) snprintf(who_buf, 4925 sizeof (who_buf), "%c%c$%s", 4926 set_type, locality, who); 4927 else 4928 (void) snprintf(who_buf, 4929 sizeof (who_buf), "%c%c$", 4930 set_type, locality); 4931 4932 (void) nvlist_add_nvlist(top_nvl, who_buf, 4933 set_nvl); 4934 } 4935 } 4936 } else { 4937 for (i = 0; i < 2; i++) { 4938 char locality = ld[i]; 4939 if (locality == 0) 4940 continue; 4941 4942 if (who != NULL) 4943 (void) snprintf(who_buf, sizeof (who_buf), 4944 "%c%c$%s", base_type, locality, who); 4945 else 4946 (void) snprintf(who_buf, sizeof (who_buf), 4947 "%c%c$", base_type, locality); 4948 (void) nvlist_add_boolean(top_nvl, who_buf); 4949 4950 if (who != NULL) 4951 (void) snprintf(who_buf, sizeof (who_buf), 4952 "%c%c$%s", set_type, locality, who); 4953 else 4954 (void) snprintf(who_buf, sizeof (who_buf), 4955 "%c%c$", set_type, locality); 4956 (void) nvlist_add_boolean(top_nvl, who_buf); 4957 } 4958 } 4959 } 4960 4961 static int 4962 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4963 { 4964 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4965 nomem(); 4966 4967 if (opts->set) { 4968 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4969 opts->descend, opts->who, opts->perms, *nvlp); 4970 } else if (opts->create) { 4971 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4972 opts->descend, NULL, opts->perms, *nvlp); 4973 } else if (opts->everyone) { 4974 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4975 opts->descend, NULL, opts->perms, *nvlp); 4976 } else { 4977 char *curr = opts->who; 4978 char *end = curr + strlen(curr); 4979 4980 while (curr < end) { 4981 const char *who; 4982 zfs_deleg_who_type_t who_type; 4983 char *endch; 4984 char *delim = strchr(curr, ','); 4985 char errbuf[256]; 4986 char id[64]; 4987 struct passwd *p = NULL; 4988 struct group *g = NULL; 4989 4990 uid_t rid; 4991 if (delim == NULL) 4992 delim = end; 4993 else 4994 *delim = '\0'; 4995 4996 rid = (uid_t)strtol(curr, &endch, 0); 4997 if (opts->user) { 4998 who_type = ZFS_DELEG_USER; 4999 if (*endch != '\0') 5000 p = getpwnam(curr); 5001 else 5002 p = getpwuid(rid); 5003 5004 if (p != NULL) 5005 rid = p->pw_uid; 5006 else { 5007 (void) snprintf(errbuf, 256, gettext( 5008 "invalid user %s"), curr); 5009 allow_usage(un, B_TRUE, errbuf); 5010 } 5011 } else if (opts->group) { 5012 who_type = ZFS_DELEG_GROUP; 5013 if (*endch != '\0') 5014 g = getgrnam(curr); 5015 else 5016 g = getgrgid(rid); 5017 5018 if (g != NULL) 5019 rid = g->gr_gid; 5020 else { 5021 (void) snprintf(errbuf, 256, gettext( 5022 "invalid group %s"), curr); 5023 allow_usage(un, B_TRUE, errbuf); 5024 } 5025 } else { 5026 if (*endch != '\0') { 5027 p = getpwnam(curr); 5028 } else { 5029 p = getpwuid(rid); 5030 } 5031 5032 if (p == NULL) 5033 if (*endch != '\0') { 5034 g = getgrnam(curr); 5035 } else { 5036 g = getgrgid(rid); 5037 } 5038 5039 if (p != NULL) { 5040 who_type = ZFS_DELEG_USER; 5041 rid = p->pw_uid; 5042 } else if (g != NULL) { 5043 who_type = ZFS_DELEG_GROUP; 5044 rid = g->gr_gid; 5045 } else { 5046 (void) snprintf(errbuf, 256, gettext( 5047 "invalid user/group %s"), curr); 5048 allow_usage(un, B_TRUE, errbuf); 5049 } 5050 } 5051 5052 (void) sprintf(id, "%u", rid); 5053 who = id; 5054 5055 store_allow_perm(who_type, opts->local, 5056 opts->descend, who, opts->perms, *nvlp); 5057 curr = delim + 1; 5058 } 5059 } 5060 5061 return (0); 5062 } 5063 5064 static void 5065 print_set_creat_perms(uu_avl_t *who_avl) 5066 { 5067 const char *sc_title[] = { 5068 gettext("Permission sets:\n"), 5069 gettext("Create time permissions:\n"), 5070 NULL 5071 }; 5072 const char **title_ptr = sc_title; 5073 who_perm_node_t *who_node = NULL; 5074 int prev_weight = -1; 5075 5076 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5077 who_node = uu_avl_next(who_avl, who_node)) { 5078 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5079 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5080 const char *who_name = who_node->who_perm.who_name; 5081 int weight = who_type2weight(who_type); 5082 boolean_t first = B_TRUE; 5083 deleg_perm_node_t *deleg_node; 5084 5085 if (prev_weight != weight) { 5086 (void) printf(*title_ptr++); 5087 prev_weight = weight; 5088 } 5089 5090 if (who_name == NULL || strnlen(who_name, 1) == 0) 5091 (void) printf("\t"); 5092 else 5093 (void) printf("\t%s ", who_name); 5094 5095 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5096 deleg_node = uu_avl_next(avl, deleg_node)) { 5097 if (first) { 5098 (void) printf("%s", 5099 deleg_node->dpn_perm.dp_name); 5100 first = B_FALSE; 5101 } else 5102 (void) printf(",%s", 5103 deleg_node->dpn_perm.dp_name); 5104 } 5105 5106 (void) printf("\n"); 5107 } 5108 } 5109 5110 static void inline 5111 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5112 const char *title) 5113 { 5114 who_perm_node_t *who_node = NULL; 5115 boolean_t prt_title = B_TRUE; 5116 uu_avl_walk_t *walk; 5117 5118 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5119 nomem(); 5120 5121 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5122 const char *who_name = who_node->who_perm.who_name; 5123 const char *nice_who_name = who_node->who_perm.who_ug_name; 5124 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5125 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5126 char delim = ' '; 5127 deleg_perm_node_t *deleg_node; 5128 boolean_t prt_who = B_TRUE; 5129 5130 for (deleg_node = uu_avl_first(avl); 5131 deleg_node != NULL; 5132 deleg_node = uu_avl_next(avl, deleg_node)) { 5133 if (local != deleg_node->dpn_perm.dp_local || 5134 descend != deleg_node->dpn_perm.dp_descend) 5135 continue; 5136 5137 if (prt_who) { 5138 const char *who = NULL; 5139 if (prt_title) { 5140 prt_title = B_FALSE; 5141 (void) printf(title); 5142 } 5143 5144 switch (who_type) { 5145 case ZFS_DELEG_USER_SETS: 5146 case ZFS_DELEG_USER: 5147 who = gettext("user"); 5148 if (nice_who_name) 5149 who_name = nice_who_name; 5150 break; 5151 case ZFS_DELEG_GROUP_SETS: 5152 case ZFS_DELEG_GROUP: 5153 who = gettext("group"); 5154 if (nice_who_name) 5155 who_name = nice_who_name; 5156 break; 5157 case ZFS_DELEG_EVERYONE_SETS: 5158 case ZFS_DELEG_EVERYONE: 5159 who = gettext("everyone"); 5160 who_name = NULL; 5161 } 5162 5163 prt_who = B_FALSE; 5164 if (who_name == NULL) 5165 (void) printf("\t%s", who); 5166 else 5167 (void) printf("\t%s %s", who, who_name); 5168 } 5169 5170 (void) printf("%c%s", delim, 5171 deleg_node->dpn_perm.dp_name); 5172 delim = ','; 5173 } 5174 5175 if (!prt_who) 5176 (void) printf("\n"); 5177 } 5178 5179 uu_avl_walk_end(walk); 5180 } 5181 5182 static void 5183 print_fs_perms(fs_perm_set_t *fspset) 5184 { 5185 fs_perm_node_t *node = NULL; 5186 char buf[ZFS_MAXNAMELEN+32]; 5187 const char *dsname = buf; 5188 5189 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5190 node = uu_list_next(fspset->fsps_list, node)) { 5191 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5192 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5193 int left = 0; 5194 5195 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5196 gettext("---- Permissions on %s "), 5197 node->fspn_fsperm.fsp_name); 5198 (void) printf(dsname); 5199 left = 70 - strlen(buf); 5200 while (left-- > 0) 5201 (void) printf("-"); 5202 (void) printf("\n"); 5203 5204 print_set_creat_perms(sc_avl); 5205 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5206 gettext("Local permissions:\n")); 5207 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5208 gettext("Descendent permissions:\n")); 5209 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5210 gettext("Local+Descendent permissions:\n")); 5211 } 5212 } 5213 5214 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5215 5216 struct deleg_perms { 5217 boolean_t un; 5218 nvlist_t *nvl; 5219 }; 5220 5221 static int 5222 set_deleg_perms(zfs_handle_t *zhp, void *data) 5223 { 5224 struct deleg_perms *perms = (struct deleg_perms *)data; 5225 zfs_type_t zfs_type = zfs_get_type(zhp); 5226 5227 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5228 return (0); 5229 5230 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5231 } 5232 5233 static int 5234 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5235 { 5236 zfs_handle_t *zhp; 5237 nvlist_t *perm_nvl = NULL; 5238 nvlist_t *update_perm_nvl = NULL; 5239 int error = 1; 5240 int c; 5241 struct allow_opts opts = { 0 }; 5242 5243 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5244 5245 /* check opts */ 5246 while ((c = getopt(argc, argv, optstr)) != -1) { 5247 switch (c) { 5248 case 'l': 5249 opts.local = B_TRUE; 5250 break; 5251 case 'd': 5252 opts.descend = B_TRUE; 5253 break; 5254 case 'u': 5255 opts.user = B_TRUE; 5256 break; 5257 case 'g': 5258 opts.group = B_TRUE; 5259 break; 5260 case 'e': 5261 opts.everyone = B_TRUE; 5262 break; 5263 case 's': 5264 opts.set = B_TRUE; 5265 break; 5266 case 'c': 5267 opts.create = B_TRUE; 5268 break; 5269 case 'r': 5270 opts.recursive = B_TRUE; 5271 break; 5272 case ':': 5273 (void) fprintf(stderr, gettext("missing argument for " 5274 "'%c' option\n"), optopt); 5275 usage(B_FALSE); 5276 break; 5277 case 'h': 5278 opts.prt_usage = B_TRUE; 5279 break; 5280 case '?': 5281 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5282 optopt); 5283 usage(B_FALSE); 5284 } 5285 } 5286 5287 argc -= optind; 5288 argv += optind; 5289 5290 /* check arguments */ 5291 parse_allow_args(argc, argv, un, &opts); 5292 5293 /* try to open the dataset */ 5294 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5295 ZFS_TYPE_VOLUME)) == NULL) { 5296 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5297 opts.dataset); 5298 return (-1); 5299 } 5300 5301 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5302 goto cleanup2; 5303 5304 fs_perm_set_init(&fs_perm_set); 5305 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5306 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5307 goto cleanup1; 5308 } 5309 5310 if (opts.prt_perms) 5311 print_fs_perms(&fs_perm_set); 5312 else { 5313 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5314 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5315 goto cleanup0; 5316 5317 if (un && opts.recursive) { 5318 struct deleg_perms data = { un, update_perm_nvl }; 5319 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5320 &data) != 0) 5321 goto cleanup0; 5322 } 5323 } 5324 5325 error = 0; 5326 5327 cleanup0: 5328 nvlist_free(perm_nvl); 5329 if (update_perm_nvl != NULL) 5330 nvlist_free(update_perm_nvl); 5331 cleanup1: 5332 fs_perm_set_fini(&fs_perm_set); 5333 cleanup2: 5334 zfs_close(zhp); 5335 5336 return (error); 5337 } 5338 5339 static int 5340 zfs_do_allow(int argc, char **argv) 5341 { 5342 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5343 } 5344 5345 static int 5346 zfs_do_unallow(int argc, char **argv) 5347 { 5348 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5349 } 5350 5351 static int 5352 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5353 { 5354 int errors = 0; 5355 int i; 5356 const char *tag; 5357 boolean_t recursive = B_FALSE; 5358 const char *opts = holding ? "rt" : "r"; 5359 int c; 5360 5361 /* check options */ 5362 while ((c = getopt(argc, argv, opts)) != -1) { 5363 switch (c) { 5364 case 'r': 5365 recursive = B_TRUE; 5366 break; 5367 case '?': 5368 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5369 optopt); 5370 usage(B_FALSE); 5371 } 5372 } 5373 5374 argc -= optind; 5375 argv += optind; 5376 5377 /* check number of arguments */ 5378 if (argc < 2) 5379 usage(B_FALSE); 5380 5381 tag = argv[0]; 5382 --argc; 5383 ++argv; 5384 5385 if (holding && tag[0] == '.') { 5386 /* tags starting with '.' are reserved for libzfs */ 5387 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5388 usage(B_FALSE); 5389 } 5390 5391 for (i = 0; i < argc; ++i) { 5392 zfs_handle_t *zhp; 5393 char parent[ZFS_MAXNAMELEN]; 5394 const char *delim; 5395 char *path = argv[i]; 5396 5397 delim = strchr(path, '@'); 5398 if (delim == NULL) { 5399 (void) fprintf(stderr, 5400 gettext("'%s' is not a snapshot\n"), path); 5401 ++errors; 5402 continue; 5403 } 5404 (void) strncpy(parent, path, delim - path); 5405 parent[delim - path] = '\0'; 5406 5407 zhp = zfs_open(g_zfs, parent, 5408 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5409 if (zhp == NULL) { 5410 ++errors; 5411 continue; 5412 } 5413 if (holding) { 5414 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5415 ++errors; 5416 } else { 5417 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5418 ++errors; 5419 } 5420 zfs_close(zhp); 5421 } 5422 5423 return (errors != 0); 5424 } 5425 5426 /* 5427 * zfs hold [-r] [-t] <tag> <snap> ... 5428 * 5429 * -r Recursively hold 5430 * 5431 * Apply a user-hold with the given tag to the list of snapshots. 5432 */ 5433 static int 5434 zfs_do_hold(int argc, char **argv) 5435 { 5436 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5437 } 5438 5439 /* 5440 * zfs release [-r] <tag> <snap> ... 5441 * 5442 * -r Recursively release 5443 * 5444 * Release a user-hold with the given tag from the list of snapshots. 5445 */ 5446 static int 5447 zfs_do_release(int argc, char **argv) 5448 { 5449 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5450 } 5451 5452 typedef struct holds_cbdata { 5453 boolean_t cb_recursive; 5454 const char *cb_snapname; 5455 nvlist_t **cb_nvlp; 5456 size_t cb_max_namelen; 5457 size_t cb_max_taglen; 5458 } holds_cbdata_t; 5459 5460 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5461 #define DATETIME_BUF_LEN (32) 5462 /* 5463 * 5464 */ 5465 static void 5466 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5467 { 5468 int i; 5469 nvpair_t *nvp = NULL; 5470 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5471 const char *col; 5472 5473 if (!scripted) { 5474 for (i = 0; i < 3; i++) { 5475 col = gettext(hdr_cols[i]); 5476 if (i < 2) 5477 (void) printf("%-*s ", i ? tagwidth : nwidth, 5478 col); 5479 else 5480 (void) printf("%s\n", col); 5481 } 5482 } 5483 5484 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5485 char *zname = nvpair_name(nvp); 5486 nvlist_t *nvl2; 5487 nvpair_t *nvp2 = NULL; 5488 (void) nvpair_value_nvlist(nvp, &nvl2); 5489 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5490 char tsbuf[DATETIME_BUF_LEN]; 5491 char *tagname = nvpair_name(nvp2); 5492 uint64_t val = 0; 5493 time_t time; 5494 struct tm t; 5495 char sep = scripted ? '\t' : ' '; 5496 size_t sepnum = scripted ? 1 : 2; 5497 5498 (void) nvpair_value_uint64(nvp2, &val); 5499 time = (time_t)val; 5500 (void) localtime_r(&time, &t); 5501 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5502 gettext(STRFTIME_FMT_STR), &t); 5503 5504 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5505 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5506 } 5507 } 5508 } 5509 5510 /* 5511 * Generic callback function to list a dataset or snapshot. 5512 */ 5513 static int 5514 holds_callback(zfs_handle_t *zhp, void *data) 5515 { 5516 holds_cbdata_t *cbp = data; 5517 nvlist_t *top_nvl = *cbp->cb_nvlp; 5518 nvlist_t *nvl = NULL; 5519 nvpair_t *nvp = NULL; 5520 const char *zname = zfs_get_name(zhp); 5521 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5522 5523 if (cbp->cb_recursive) { 5524 const char *snapname; 5525 char *delim = strchr(zname, '@'); 5526 if (delim == NULL) 5527 return (0); 5528 5529 snapname = delim + 1; 5530 if (strcmp(cbp->cb_snapname, snapname)) 5531 return (0); 5532 } 5533 5534 if (zfs_get_holds(zhp, &nvl) != 0) 5535 return (-1); 5536 5537 if (znamelen > cbp->cb_max_namelen) 5538 cbp->cb_max_namelen = znamelen; 5539 5540 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5541 const char *tag = nvpair_name(nvp); 5542 size_t taglen = strnlen(tag, MAXNAMELEN); 5543 if (taglen > cbp->cb_max_taglen) 5544 cbp->cb_max_taglen = taglen; 5545 } 5546 5547 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5548 } 5549 5550 /* 5551 * zfs holds [-r] <snap> ... 5552 * 5553 * -r Recursively hold 5554 */ 5555 static int 5556 zfs_do_holds(int argc, char **argv) 5557 { 5558 int errors = 0; 5559 int c; 5560 int i; 5561 boolean_t scripted = B_FALSE; 5562 boolean_t recursive = B_FALSE; 5563 const char *opts = "rH"; 5564 nvlist_t *nvl; 5565 5566 int types = ZFS_TYPE_SNAPSHOT; 5567 holds_cbdata_t cb = { 0 }; 5568 5569 int limit = 0; 5570 int ret = 0; 5571 int flags = 0; 5572 5573 /* check options */ 5574 while ((c = getopt(argc, argv, opts)) != -1) { 5575 switch (c) { 5576 case 'r': 5577 recursive = B_TRUE; 5578 break; 5579 case 'H': 5580 scripted = B_TRUE; 5581 break; 5582 case '?': 5583 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5584 optopt); 5585 usage(B_FALSE); 5586 } 5587 } 5588 5589 if (recursive) { 5590 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5591 flags |= ZFS_ITER_RECURSE; 5592 } 5593 5594 argc -= optind; 5595 argv += optind; 5596 5597 /* check number of arguments */ 5598 if (argc < 1) 5599 usage(B_FALSE); 5600 5601 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5602 nomem(); 5603 5604 for (i = 0; i < argc; ++i) { 5605 char *snapshot = argv[i]; 5606 const char *delim; 5607 const char *snapname; 5608 5609 delim = strchr(snapshot, '@'); 5610 if (delim == NULL) { 5611 (void) fprintf(stderr, 5612 gettext("'%s' is not a snapshot\n"), snapshot); 5613 ++errors; 5614 continue; 5615 } 5616 snapname = delim + 1; 5617 if (recursive) 5618 snapshot[delim - snapshot] = '\0'; 5619 5620 cb.cb_recursive = recursive; 5621 cb.cb_snapname = snapname; 5622 cb.cb_nvlp = &nvl; 5623 5624 /* 5625 * 1. collect holds data, set format options 5626 */ 5627 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5628 holds_callback, &cb); 5629 if (ret != 0) 5630 ++errors; 5631 } 5632 5633 /* 5634 * 2. print holds data 5635 */ 5636 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5637 5638 if (nvlist_empty(nvl)) 5639 (void) printf(gettext("no datasets available\n")); 5640 5641 nvlist_free(nvl); 5642 5643 return (0 != errors); 5644 } 5645 5646 #define CHECK_SPINNER 30 5647 #define SPINNER_TIME 3 /* seconds */ 5648 #define MOUNT_TIME 5 /* seconds */ 5649 5650 static int 5651 get_one_dataset(zfs_handle_t *zhp, void *data) 5652 { 5653 static char *spin[] = { "-", "\\", "|", "/" }; 5654 static int spinval = 0; 5655 static int spincheck = 0; 5656 static time_t last_spin_time = (time_t)0; 5657 get_all_cb_t *cbp = data; 5658 zfs_type_t type = zfs_get_type(zhp); 5659 5660 if (cbp->cb_verbose) { 5661 if (--spincheck < 0) { 5662 time_t now = time(NULL); 5663 if (last_spin_time + SPINNER_TIME < now) { 5664 update_progress(spin[spinval++ % 4]); 5665 last_spin_time = now; 5666 } 5667 spincheck = CHECK_SPINNER; 5668 } 5669 } 5670 5671 /* 5672 * Interate over any nested datasets. 5673 */ 5674 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5675 zfs_close(zhp); 5676 return (1); 5677 } 5678 5679 /* 5680 * Skip any datasets whose type does not match. 5681 */ 5682 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5683 zfs_close(zhp); 5684 return (0); 5685 } 5686 libzfs_add_handle(cbp, zhp); 5687 assert(cbp->cb_used <= cbp->cb_alloc); 5688 5689 return (0); 5690 } 5691 5692 static void 5693 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5694 { 5695 get_all_cb_t cb = { 0 }; 5696 cb.cb_verbose = verbose; 5697 cb.cb_getone = get_one_dataset; 5698 5699 if (verbose) 5700 set_progress_header(gettext("Reading ZFS config")); 5701 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5702 5703 *dslist = cb.cb_handles; 5704 *count = cb.cb_used; 5705 5706 if (verbose) 5707 finish_progress(gettext("done.")); 5708 } 5709 5710 /* 5711 * Generic callback for sharing or mounting filesystems. Because the code is so 5712 * similar, we have a common function with an extra parameter to determine which 5713 * mode we are using. 5714 */ 5715 #define OP_SHARE 0x1 5716 #define OP_MOUNT 0x2 5717 5718 /* 5719 * Share or mount a dataset. 5720 */ 5721 static int 5722 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5723 boolean_t explicit, const char *options) 5724 { 5725 char mountpoint[ZFS_MAXPROPLEN]; 5726 char shareopts[ZFS_MAXPROPLEN]; 5727 char smbshareopts[ZFS_MAXPROPLEN]; 5728 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5729 struct mnttab mnt; 5730 uint64_t zoned, canmount; 5731 boolean_t shared_nfs, shared_smb; 5732 5733 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5734 5735 /* 5736 * Check to make sure we can mount/share this dataset. If we 5737 * are in the global zone and the filesystem is exported to a 5738 * local zone, or if we are in a local zone and the 5739 * filesystem is not exported, then it is an error. 5740 */ 5741 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5742 5743 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5744 if (!explicit) 5745 return (0); 5746 5747 (void) fprintf(stderr, gettext("cannot %s '%s': " 5748 "dataset is exported to a local zone\n"), cmdname, 5749 zfs_get_name(zhp)); 5750 return (1); 5751 5752 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5753 if (!explicit) 5754 return (0); 5755 5756 (void) fprintf(stderr, gettext("cannot %s '%s': " 5757 "permission denied\n"), cmdname, 5758 zfs_get_name(zhp)); 5759 return (1); 5760 } 5761 5762 /* 5763 * Ignore any filesystems which don't apply to us. This 5764 * includes those with a legacy mountpoint, or those with 5765 * legacy share options. 5766 */ 5767 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5768 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5769 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5770 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5771 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5772 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5773 5774 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5775 strcmp(smbshareopts, "off") == 0) { 5776 if (!explicit) 5777 return (0); 5778 5779 (void) fprintf(stderr, gettext("cannot share '%s': " 5780 "legacy share\n"), zfs_get_name(zhp)); 5781 (void) fprintf(stderr, gettext("use share(1M) to " 5782 "share this filesystem, or set " 5783 "sharenfs property on\n")); 5784 return (1); 5785 } 5786 5787 /* 5788 * We cannot share or mount legacy filesystems. If the 5789 * shareopts is non-legacy but the mountpoint is legacy, we 5790 * treat it as a legacy share. 5791 */ 5792 if (strcmp(mountpoint, "legacy") == 0) { 5793 if (!explicit) 5794 return (0); 5795 5796 (void) fprintf(stderr, gettext("cannot %s '%s': " 5797 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5798 (void) fprintf(stderr, gettext("use %s(1M) to " 5799 "%s this filesystem\n"), cmdname, cmdname); 5800 return (1); 5801 } 5802 5803 if (strcmp(mountpoint, "none") == 0) { 5804 if (!explicit) 5805 return (0); 5806 5807 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5808 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5809 return (1); 5810 } 5811 5812 /* 5813 * canmount explicit outcome 5814 * on no pass through 5815 * on yes pass through 5816 * off no return 0 5817 * off yes display error, return 1 5818 * noauto no return 0 5819 * noauto yes pass through 5820 */ 5821 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5822 if (canmount == ZFS_CANMOUNT_OFF) { 5823 if (!explicit) 5824 return (0); 5825 5826 (void) fprintf(stderr, gettext("cannot %s '%s': " 5827 "'canmount' property is set to 'off'\n"), cmdname, 5828 zfs_get_name(zhp)); 5829 return (1); 5830 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5831 return (0); 5832 } 5833 5834 /* 5835 * If this filesystem is inconsistent and has a receive resume 5836 * token, we can not mount it. 5837 */ 5838 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5839 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5840 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5841 if (!explicit) 5842 return (0); 5843 5844 (void) fprintf(stderr, gettext("cannot %s '%s': " 5845 "Contains partially-completed state from " 5846 "\"zfs receive -r\", which can be resumed with " 5847 "\"zfs send -t\"\n"), 5848 cmdname, zfs_get_name(zhp)); 5849 return (1); 5850 } 5851 5852 /* 5853 * At this point, we have verified that the mountpoint and/or 5854 * shareopts are appropriate for auto management. If the 5855 * filesystem is already mounted or shared, return (failing 5856 * for explicit requests); otherwise mount or share the 5857 * filesystem. 5858 */ 5859 switch (op) { 5860 case OP_SHARE: 5861 5862 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5863 shared_smb = zfs_is_shared_smb(zhp, NULL); 5864 5865 if (shared_nfs && shared_smb || 5866 (shared_nfs && strcmp(shareopts, "on") == 0 && 5867 strcmp(smbshareopts, "off") == 0) || 5868 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5869 strcmp(shareopts, "off") == 0)) { 5870 if (!explicit) 5871 return (0); 5872 5873 (void) fprintf(stderr, gettext("cannot share " 5874 "'%s': filesystem already shared\n"), 5875 zfs_get_name(zhp)); 5876 return (1); 5877 } 5878 5879 if (!zfs_is_mounted(zhp, NULL) && 5880 zfs_mount(zhp, NULL, 0) != 0) 5881 return (1); 5882 5883 if (protocol == NULL) { 5884 if (zfs_shareall(zhp) != 0) 5885 return (1); 5886 } else if (strcmp(protocol, "nfs") == 0) { 5887 if (zfs_share_nfs(zhp)) 5888 return (1); 5889 } else if (strcmp(protocol, "smb") == 0) { 5890 if (zfs_share_smb(zhp)) 5891 return (1); 5892 } else { 5893 (void) fprintf(stderr, gettext("cannot share " 5894 "'%s': invalid share type '%s' " 5895 "specified\n"), 5896 zfs_get_name(zhp), protocol); 5897 return (1); 5898 } 5899 5900 break; 5901 5902 case OP_MOUNT: 5903 if (options == NULL) 5904 mnt.mnt_mntopts = ""; 5905 else 5906 mnt.mnt_mntopts = (char *)options; 5907 5908 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5909 zfs_is_mounted(zhp, NULL)) { 5910 if (!explicit) 5911 return (0); 5912 5913 (void) fprintf(stderr, gettext("cannot mount " 5914 "'%s': filesystem already mounted\n"), 5915 zfs_get_name(zhp)); 5916 return (1); 5917 } 5918 5919 if (zfs_mount(zhp, options, flags) != 0) 5920 return (1); 5921 break; 5922 } 5923 5924 return (0); 5925 } 5926 5927 /* 5928 * Reports progress in the form "(current/total)". Not thread-safe. 5929 */ 5930 static void 5931 report_mount_progress(int current, int total) 5932 { 5933 static time_t last_progress_time = 0; 5934 time_t now = time(NULL); 5935 char info[32]; 5936 5937 /* report 1..n instead of 0..n-1 */ 5938 ++current; 5939 5940 /* display header if we're here for the first time */ 5941 if (current == 1) { 5942 set_progress_header(gettext("Mounting ZFS filesystems")); 5943 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5944 /* too soon to report again */ 5945 return; 5946 } 5947 5948 last_progress_time = now; 5949 5950 (void) sprintf(info, "(%d/%d)", current, total); 5951 5952 if (current == total) 5953 finish_progress(info); 5954 else 5955 update_progress(info); 5956 } 5957 5958 static void 5959 append_options(char *mntopts, char *newopts) 5960 { 5961 int len = strlen(mntopts); 5962 5963 /* original length plus new string to append plus 1 for the comma */ 5964 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5965 (void) fprintf(stderr, gettext("the opts argument for " 5966 "'%c' option is too long (more than %d chars)\n"), 5967 "-o", MNT_LINE_MAX); 5968 usage(B_FALSE); 5969 } 5970 5971 if (*mntopts) 5972 mntopts[len++] = ','; 5973 5974 (void) strcpy(&mntopts[len], newopts); 5975 } 5976 5977 static int 5978 share_mount(int op, int argc, char **argv) 5979 { 5980 int do_all = 0; 5981 boolean_t verbose = B_FALSE; 5982 int c, ret = 0; 5983 char *options = NULL; 5984 int flags = 0; 5985 5986 /* check options */ 5987 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5988 != -1) { 5989 switch (c) { 5990 case 'a': 5991 do_all = 1; 5992 break; 5993 case 'v': 5994 verbose = B_TRUE; 5995 break; 5996 case 'o': 5997 if (*optarg == '\0') { 5998 (void) fprintf(stderr, gettext("empty mount " 5999 "options (-o) specified\n")); 6000 usage(B_FALSE); 6001 } 6002 6003 if (options == NULL) 6004 options = safe_malloc(MNT_LINE_MAX + 1); 6005 6006 /* option validation is done later */ 6007 append_options(options, optarg); 6008 break; 6009 6010 case 'O': 6011 flags |= MS_OVERLAY; 6012 break; 6013 case ':': 6014 (void) fprintf(stderr, gettext("missing argument for " 6015 "'%c' option\n"), optopt); 6016 usage(B_FALSE); 6017 break; 6018 case '?': 6019 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6020 optopt); 6021 usage(B_FALSE); 6022 } 6023 } 6024 6025 argc -= optind; 6026 argv += optind; 6027 6028 /* check number of arguments */ 6029 if (do_all) { 6030 zfs_handle_t **dslist = NULL; 6031 size_t i, count = 0; 6032 char *protocol = NULL; 6033 6034 if (op == OP_SHARE && argc > 0) { 6035 if (strcmp(argv[0], "nfs") != 0 && 6036 strcmp(argv[0], "smb") != 0) { 6037 (void) fprintf(stderr, gettext("share type " 6038 "must be 'nfs' or 'smb'\n")); 6039 usage(B_FALSE); 6040 } 6041 protocol = argv[0]; 6042 argc--; 6043 argv++; 6044 } 6045 6046 if (argc != 0) { 6047 (void) fprintf(stderr, gettext("too many arguments\n")); 6048 usage(B_FALSE); 6049 } 6050 6051 start_progress_timer(); 6052 get_all_datasets(&dslist, &count, verbose); 6053 6054 if (count == 0) 6055 return (0); 6056 6057 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6058 6059 for (i = 0; i < count; i++) { 6060 if (verbose) 6061 report_mount_progress(i, count); 6062 6063 if (share_mount_one(dslist[i], op, flags, protocol, 6064 B_FALSE, options) != 0) 6065 ret = 1; 6066 zfs_close(dslist[i]); 6067 } 6068 6069 free(dslist); 6070 } else if (argc == 0) { 6071 struct mnttab entry; 6072 6073 if ((op == OP_SHARE) || (options != NULL)) { 6074 (void) fprintf(stderr, gettext("missing filesystem " 6075 "argument (specify -a for all)\n")); 6076 usage(B_FALSE); 6077 } 6078 6079 /* 6080 * When mount is given no arguments, go through /etc/mnttab and 6081 * display any active ZFS mounts. We hide any snapshots, since 6082 * they are controlled automatically. 6083 */ 6084 rewind(mnttab_file); 6085 while (getmntent(mnttab_file, &entry) == 0) { 6086 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6087 strchr(entry.mnt_special, '@') != NULL) 6088 continue; 6089 6090 (void) printf("%-30s %s\n", entry.mnt_special, 6091 entry.mnt_mountp); 6092 } 6093 6094 } else { 6095 zfs_handle_t *zhp; 6096 6097 if (argc > 1) { 6098 (void) fprintf(stderr, 6099 gettext("too many arguments\n")); 6100 usage(B_FALSE); 6101 } 6102 6103 if ((zhp = zfs_open(g_zfs, argv[0], 6104 ZFS_TYPE_FILESYSTEM)) == NULL) { 6105 ret = 1; 6106 } else { 6107 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6108 options); 6109 zfs_close(zhp); 6110 } 6111 } 6112 6113 return (ret); 6114 } 6115 6116 /* 6117 * zfs mount -a [nfs] 6118 * zfs mount filesystem 6119 * 6120 * Mount all filesystems, or mount the given filesystem. 6121 */ 6122 static int 6123 zfs_do_mount(int argc, char **argv) 6124 { 6125 return (share_mount(OP_MOUNT, argc, argv)); 6126 } 6127 6128 /* 6129 * zfs share -a [nfs | smb] 6130 * zfs share filesystem 6131 * 6132 * Share all filesystems, or share the given filesystem. 6133 */ 6134 static int 6135 zfs_do_share(int argc, char **argv) 6136 { 6137 return (share_mount(OP_SHARE, argc, argv)); 6138 } 6139 6140 typedef struct unshare_unmount_node { 6141 zfs_handle_t *un_zhp; 6142 char *un_mountp; 6143 uu_avl_node_t un_avlnode; 6144 } unshare_unmount_node_t; 6145 6146 /* ARGSUSED */ 6147 static int 6148 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6149 { 6150 const unshare_unmount_node_t *l = larg; 6151 const unshare_unmount_node_t *r = rarg; 6152 6153 return (strcmp(l->un_mountp, r->un_mountp)); 6154 } 6155 6156 /* 6157 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6158 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6159 * and unmount it appropriately. 6160 */ 6161 static int 6162 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6163 { 6164 zfs_handle_t *zhp; 6165 int ret = 0; 6166 struct stat64 statbuf; 6167 struct extmnttab entry; 6168 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6169 ino_t path_inode; 6170 6171 /* 6172 * Search for the path in /etc/mnttab. Rather than looking for the 6173 * specific path, which can be fooled by non-standard paths (i.e. ".." 6174 * or "//"), we stat() the path and search for the corresponding 6175 * (major,minor) device pair. 6176 */ 6177 if (stat64(path, &statbuf) != 0) { 6178 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6179 cmdname, path, strerror(errno)); 6180 return (1); 6181 } 6182 path_inode = statbuf.st_ino; 6183 6184 /* 6185 * Search for the given (major,minor) pair in the mount table. 6186 */ 6187 rewind(mnttab_file); 6188 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6189 if (entry.mnt_major == major(statbuf.st_dev) && 6190 entry.mnt_minor == minor(statbuf.st_dev)) 6191 break; 6192 } 6193 if (ret != 0) { 6194 if (op == OP_SHARE) { 6195 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6196 "currently mounted\n"), cmdname, path); 6197 return (1); 6198 } 6199 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6200 path); 6201 if ((ret = umount2(path, flags)) != 0) 6202 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6203 strerror(errno)); 6204 return (ret != 0); 6205 } 6206 6207 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6208 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6209 "filesystem\n"), cmdname, path); 6210 return (1); 6211 } 6212 6213 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6214 ZFS_TYPE_FILESYSTEM)) == NULL) 6215 return (1); 6216 6217 ret = 1; 6218 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6219 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6220 cmdname, path, strerror(errno)); 6221 goto out; 6222 } else if (statbuf.st_ino != path_inode) { 6223 (void) fprintf(stderr, gettext("cannot " 6224 "%s '%s': not a mountpoint\n"), cmdname, path); 6225 goto out; 6226 } 6227 6228 if (op == OP_SHARE) { 6229 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6230 char smbshare_prop[ZFS_MAXPROPLEN]; 6231 6232 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6233 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6234 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6235 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6236 6237 if (strcmp(nfs_mnt_prop, "off") == 0 && 6238 strcmp(smbshare_prop, "off") == 0) { 6239 (void) fprintf(stderr, gettext("cannot unshare " 6240 "'%s': legacy share\n"), path); 6241 (void) fprintf(stderr, gettext("use " 6242 "unshare(1M) to unshare this filesystem\n")); 6243 } else if (!zfs_is_shared(zhp)) { 6244 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6245 "not currently shared\n"), path); 6246 } else { 6247 ret = zfs_unshareall_bypath(zhp, path); 6248 } 6249 } else { 6250 char mtpt_prop[ZFS_MAXPROPLEN]; 6251 6252 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6253 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6254 6255 if (is_manual) { 6256 ret = zfs_unmount(zhp, NULL, flags); 6257 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6258 (void) fprintf(stderr, gettext("cannot unmount " 6259 "'%s': legacy mountpoint\n"), 6260 zfs_get_name(zhp)); 6261 (void) fprintf(stderr, gettext("use umount(1M) " 6262 "to unmount this filesystem\n")); 6263 } else { 6264 ret = zfs_unmountall(zhp, flags); 6265 } 6266 } 6267 6268 out: 6269 zfs_close(zhp); 6270 6271 return (ret != 0); 6272 } 6273 6274 /* 6275 * Generic callback for unsharing or unmounting a filesystem. 6276 */ 6277 static int 6278 unshare_unmount(int op, int argc, char **argv) 6279 { 6280 int do_all = 0; 6281 int flags = 0; 6282 int ret = 0; 6283 int c; 6284 zfs_handle_t *zhp; 6285 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6286 char sharesmb[ZFS_MAXPROPLEN]; 6287 6288 /* check options */ 6289 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6290 switch (c) { 6291 case 'a': 6292 do_all = 1; 6293 break; 6294 case 'f': 6295 flags = MS_FORCE; 6296 break; 6297 case '?': 6298 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6299 optopt); 6300 usage(B_FALSE); 6301 } 6302 } 6303 6304 argc -= optind; 6305 argv += optind; 6306 6307 if (do_all) { 6308 /* 6309 * We could make use of zfs_for_each() to walk all datasets in 6310 * the system, but this would be very inefficient, especially 6311 * since we would have to linearly search /etc/mnttab for each 6312 * one. Instead, do one pass through /etc/mnttab looking for 6313 * zfs entries and call zfs_unmount() for each one. 6314 * 6315 * Things get a little tricky if the administrator has created 6316 * mountpoints beneath other ZFS filesystems. In this case, we 6317 * have to unmount the deepest filesystems first. To accomplish 6318 * this, we place all the mountpoints in an AVL tree sorted by 6319 * the special type (dataset name), and walk the result in 6320 * reverse to make sure to get any snapshots first. 6321 */ 6322 struct mnttab entry; 6323 uu_avl_pool_t *pool; 6324 uu_avl_t *tree; 6325 unshare_unmount_node_t *node; 6326 uu_avl_index_t idx; 6327 uu_avl_walk_t *walk; 6328 6329 if (argc != 0) { 6330 (void) fprintf(stderr, gettext("too many arguments\n")); 6331 usage(B_FALSE); 6332 } 6333 6334 if (((pool = uu_avl_pool_create("unmount_pool", 6335 sizeof (unshare_unmount_node_t), 6336 offsetof(unshare_unmount_node_t, un_avlnode), 6337 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6338 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6339 nomem(); 6340 6341 rewind(mnttab_file); 6342 while (getmntent(mnttab_file, &entry) == 0) { 6343 6344 /* ignore non-ZFS entries */ 6345 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6346 continue; 6347 6348 /* ignore snapshots */ 6349 if (strchr(entry.mnt_special, '@') != NULL) 6350 continue; 6351 6352 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6353 ZFS_TYPE_FILESYSTEM)) == NULL) { 6354 ret = 1; 6355 continue; 6356 } 6357 6358 switch (op) { 6359 case OP_SHARE: 6360 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6361 nfs_mnt_prop, 6362 sizeof (nfs_mnt_prop), 6363 NULL, NULL, 0, B_FALSE) == 0); 6364 if (strcmp(nfs_mnt_prop, "off") != 0) 6365 break; 6366 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6367 nfs_mnt_prop, 6368 sizeof (nfs_mnt_prop), 6369 NULL, NULL, 0, B_FALSE) == 0); 6370 if (strcmp(nfs_mnt_prop, "off") == 0) 6371 continue; 6372 break; 6373 case OP_MOUNT: 6374 /* Ignore legacy mounts */ 6375 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6376 nfs_mnt_prop, 6377 sizeof (nfs_mnt_prop), 6378 NULL, NULL, 0, B_FALSE) == 0); 6379 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6380 continue; 6381 /* Ignore canmount=noauto mounts */ 6382 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6383 ZFS_CANMOUNT_NOAUTO) 6384 continue; 6385 default: 6386 break; 6387 } 6388 6389 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6390 node->un_zhp = zhp; 6391 node->un_mountp = safe_strdup(entry.mnt_mountp); 6392 6393 uu_avl_node_init(node, &node->un_avlnode, pool); 6394 6395 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6396 uu_avl_insert(tree, node, idx); 6397 } else { 6398 zfs_close(node->un_zhp); 6399 free(node->un_mountp); 6400 free(node); 6401 } 6402 } 6403 6404 /* 6405 * Walk the AVL tree in reverse, unmounting each filesystem and 6406 * removing it from the AVL tree in the process. 6407 */ 6408 if ((walk = uu_avl_walk_start(tree, 6409 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6410 nomem(); 6411 6412 while ((node = uu_avl_walk_next(walk)) != NULL) { 6413 uu_avl_remove(tree, node); 6414 6415 switch (op) { 6416 case OP_SHARE: 6417 if (zfs_unshareall_bypath(node->un_zhp, 6418 node->un_mountp) != 0) 6419 ret = 1; 6420 break; 6421 6422 case OP_MOUNT: 6423 if (zfs_unmount(node->un_zhp, 6424 node->un_mountp, flags) != 0) 6425 ret = 1; 6426 break; 6427 } 6428 6429 zfs_close(node->un_zhp); 6430 free(node->un_mountp); 6431 free(node); 6432 } 6433 6434 uu_avl_walk_end(walk); 6435 uu_avl_destroy(tree); 6436 uu_avl_pool_destroy(pool); 6437 6438 } else { 6439 if (argc != 1) { 6440 if (argc == 0) 6441 (void) fprintf(stderr, 6442 gettext("missing filesystem argument\n")); 6443 else 6444 (void) fprintf(stderr, 6445 gettext("too many arguments\n")); 6446 usage(B_FALSE); 6447 } 6448 6449 /* 6450 * We have an argument, but it may be a full path or a ZFS 6451 * filesystem. Pass full paths off to unmount_path() (shared by 6452 * manual_unmount), otherwise open the filesystem and pass to 6453 * zfs_unmount(). 6454 */ 6455 if (argv[0][0] == '/') 6456 return (unshare_unmount_path(op, argv[0], 6457 flags, B_FALSE)); 6458 6459 if ((zhp = zfs_open(g_zfs, argv[0], 6460 ZFS_TYPE_FILESYSTEM)) == NULL) 6461 return (1); 6462 6463 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6464 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6465 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6466 NULL, 0, B_FALSE) == 0); 6467 6468 switch (op) { 6469 case OP_SHARE: 6470 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6471 nfs_mnt_prop, 6472 sizeof (nfs_mnt_prop), 6473 NULL, NULL, 0, B_FALSE) == 0); 6474 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6475 sharesmb, sizeof (sharesmb), NULL, NULL, 6476 0, B_FALSE) == 0); 6477 6478 if (strcmp(nfs_mnt_prop, "off") == 0 && 6479 strcmp(sharesmb, "off") == 0) { 6480 (void) fprintf(stderr, gettext("cannot " 6481 "unshare '%s': legacy share\n"), 6482 zfs_get_name(zhp)); 6483 (void) fprintf(stderr, gettext("use " 6484 "unshare(1M) to unshare this " 6485 "filesystem\n")); 6486 ret = 1; 6487 } else if (!zfs_is_shared(zhp)) { 6488 (void) fprintf(stderr, gettext("cannot " 6489 "unshare '%s': not currently " 6490 "shared\n"), zfs_get_name(zhp)); 6491 ret = 1; 6492 } else if (zfs_unshareall(zhp) != 0) { 6493 ret = 1; 6494 } 6495 break; 6496 6497 case OP_MOUNT: 6498 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6499 (void) fprintf(stderr, gettext("cannot " 6500 "unmount '%s': legacy " 6501 "mountpoint\n"), zfs_get_name(zhp)); 6502 (void) fprintf(stderr, gettext("use " 6503 "umount(1M) to unmount this " 6504 "filesystem\n")); 6505 ret = 1; 6506 } else if (!zfs_is_mounted(zhp, NULL)) { 6507 (void) fprintf(stderr, gettext("cannot " 6508 "unmount '%s': not currently " 6509 "mounted\n"), 6510 zfs_get_name(zhp)); 6511 ret = 1; 6512 } else if (zfs_unmountall(zhp, flags) != 0) { 6513 ret = 1; 6514 } 6515 break; 6516 } 6517 6518 zfs_close(zhp); 6519 } 6520 6521 return (ret); 6522 } 6523 6524 /* 6525 * zfs unmount -a 6526 * zfs unmount filesystem 6527 * 6528 * Unmount all filesystems, or a specific ZFS filesystem. 6529 */ 6530 static int 6531 zfs_do_unmount(int argc, char **argv) 6532 { 6533 return (unshare_unmount(OP_MOUNT, argc, argv)); 6534 } 6535 6536 /* 6537 * zfs unshare -a 6538 * zfs unshare filesystem 6539 * 6540 * Unshare all filesystems, or a specific ZFS filesystem. 6541 */ 6542 static int 6543 zfs_do_unshare(int argc, char **argv) 6544 { 6545 return (unshare_unmount(OP_SHARE, argc, argv)); 6546 } 6547 6548 /* 6549 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6550 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6551 */ 6552 static int 6553 manual_mount(int argc, char **argv) 6554 { 6555 zfs_handle_t *zhp; 6556 char mountpoint[ZFS_MAXPROPLEN]; 6557 char mntopts[MNT_LINE_MAX] = { '\0' }; 6558 int ret = 0; 6559 int c; 6560 int flags = 0; 6561 char *dataset, *path; 6562 6563 /* check options */ 6564 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6565 switch (c) { 6566 case 'o': 6567 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6568 break; 6569 case 'O': 6570 flags |= MS_OVERLAY; 6571 break; 6572 case 'm': 6573 flags |= MS_NOMNTTAB; 6574 break; 6575 case ':': 6576 (void) fprintf(stderr, gettext("missing argument for " 6577 "'%c' option\n"), optopt); 6578 usage(B_FALSE); 6579 break; 6580 case '?': 6581 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6582 optopt); 6583 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6584 "<path>\n")); 6585 return (2); 6586 } 6587 } 6588 6589 argc -= optind; 6590 argv += optind; 6591 6592 /* check that we only have two arguments */ 6593 if (argc != 2) { 6594 if (argc == 0) 6595 (void) fprintf(stderr, gettext("missing dataset " 6596 "argument\n")); 6597 else if (argc == 1) 6598 (void) fprintf(stderr, 6599 gettext("missing mountpoint argument\n")); 6600 else 6601 (void) fprintf(stderr, gettext("too many arguments\n")); 6602 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6603 return (2); 6604 } 6605 6606 dataset = argv[0]; 6607 path = argv[1]; 6608 6609 /* try to open the dataset */ 6610 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6611 return (1); 6612 6613 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6614 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6615 6616 /* check for legacy mountpoint and complain appropriately */ 6617 ret = 0; 6618 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6619 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6620 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6621 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6622 strerror(errno)); 6623 ret = 1; 6624 } 6625 } else { 6626 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6627 "mounted using 'mount -F zfs'\n"), dataset); 6628 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6629 "instead.\n"), path); 6630 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6631 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6632 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6633 "information.\n")); 6634 ret = 1; 6635 } 6636 6637 return (ret); 6638 } 6639 6640 /* 6641 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6642 * unmounts of non-legacy filesystems, as this is the dominant administrative 6643 * interface. 6644 */ 6645 static int 6646 manual_unmount(int argc, char **argv) 6647 { 6648 int flags = 0; 6649 int c; 6650 6651 /* check options */ 6652 while ((c = getopt(argc, argv, "f")) != -1) { 6653 switch (c) { 6654 case 'f': 6655 flags = MS_FORCE; 6656 break; 6657 case '?': 6658 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6659 optopt); 6660 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6661 "<path>\n")); 6662 return (2); 6663 } 6664 } 6665 6666 argc -= optind; 6667 argv += optind; 6668 6669 /* check arguments */ 6670 if (argc != 1) { 6671 if (argc == 0) 6672 (void) fprintf(stderr, gettext("missing path " 6673 "argument\n")); 6674 else 6675 (void) fprintf(stderr, gettext("too many arguments\n")); 6676 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6677 return (2); 6678 } 6679 6680 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6681 } 6682 6683 static int 6684 find_command_idx(char *command, int *idx) 6685 { 6686 int i; 6687 6688 for (i = 0; i < NCOMMAND; i++) { 6689 if (command_table[i].name == NULL) 6690 continue; 6691 6692 if (strcmp(command, command_table[i].name) == 0) { 6693 *idx = i; 6694 return (0); 6695 } 6696 } 6697 return (1); 6698 } 6699 6700 static int 6701 zfs_do_diff(int argc, char **argv) 6702 { 6703 zfs_handle_t *zhp; 6704 int flags = 0; 6705 char *tosnap = NULL; 6706 char *fromsnap = NULL; 6707 char *atp, *copy; 6708 int err = 0; 6709 int c; 6710 6711 while ((c = getopt(argc, argv, "FHt")) != -1) { 6712 switch (c) { 6713 case 'F': 6714 flags |= ZFS_DIFF_CLASSIFY; 6715 break; 6716 case 'H': 6717 flags |= ZFS_DIFF_PARSEABLE; 6718 break; 6719 case 't': 6720 flags |= ZFS_DIFF_TIMESTAMP; 6721 break; 6722 default: 6723 (void) fprintf(stderr, 6724 gettext("invalid option '%c'\n"), optopt); 6725 usage(B_FALSE); 6726 } 6727 } 6728 6729 argc -= optind; 6730 argv += optind; 6731 6732 if (argc < 1) { 6733 (void) fprintf(stderr, 6734 gettext("must provide at least one snapshot name\n")); 6735 usage(B_FALSE); 6736 } 6737 6738 if (argc > 2) { 6739 (void) fprintf(stderr, gettext("too many arguments\n")); 6740 usage(B_FALSE); 6741 } 6742 6743 fromsnap = argv[0]; 6744 tosnap = (argc == 2) ? argv[1] : NULL; 6745 6746 copy = NULL; 6747 if (*fromsnap != '@') 6748 copy = strdup(fromsnap); 6749 else if (tosnap) 6750 copy = strdup(tosnap); 6751 if (copy == NULL) 6752 usage(B_FALSE); 6753 6754 if (atp = strchr(copy, '@')) 6755 *atp = '\0'; 6756 6757 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6758 return (1); 6759 6760 free(copy); 6761 6762 /* 6763 * Ignore SIGPIPE so that the library can give us 6764 * information on any failure 6765 */ 6766 (void) sigignore(SIGPIPE); 6767 6768 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6769 6770 zfs_close(zhp); 6771 6772 return (err != 0); 6773 } 6774 6775 /* 6776 * zfs bookmark <fs@snap> <fs#bmark> 6777 * 6778 * Creates a bookmark with the given name from the given snapshot. 6779 */ 6780 static int 6781 zfs_do_bookmark(int argc, char **argv) 6782 { 6783 char snapname[ZFS_MAXNAMELEN]; 6784 zfs_handle_t *zhp; 6785 nvlist_t *nvl; 6786 int ret = 0; 6787 int c; 6788 6789 /* check options */ 6790 while ((c = getopt(argc, argv, "")) != -1) { 6791 switch (c) { 6792 case '?': 6793 (void) fprintf(stderr, 6794 gettext("invalid option '%c'\n"), optopt); 6795 goto usage; 6796 } 6797 } 6798 6799 argc -= optind; 6800 argv += optind; 6801 6802 /* check number of arguments */ 6803 if (argc < 1) { 6804 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6805 goto usage; 6806 } 6807 if (argc < 2) { 6808 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6809 goto usage; 6810 } 6811 6812 if (strchr(argv[1], '#') == NULL) { 6813 (void) fprintf(stderr, 6814 gettext("invalid bookmark name '%s' -- " 6815 "must contain a '#'\n"), argv[1]); 6816 goto usage; 6817 } 6818 6819 if (argv[0][0] == '@') { 6820 /* 6821 * Snapshot name begins with @. 6822 * Default to same fs as bookmark. 6823 */ 6824 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6825 *strchr(snapname, '#') = '\0'; 6826 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6827 } else { 6828 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6829 } 6830 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6831 if (zhp == NULL) 6832 goto usage; 6833 zfs_close(zhp); 6834 6835 6836 nvl = fnvlist_alloc(); 6837 fnvlist_add_string(nvl, argv[1], snapname); 6838 ret = lzc_bookmark(nvl, NULL); 6839 fnvlist_free(nvl); 6840 6841 if (ret != 0) { 6842 const char *err_msg; 6843 char errbuf[1024]; 6844 6845 (void) snprintf(errbuf, sizeof (errbuf), 6846 dgettext(TEXT_DOMAIN, 6847 "cannot create bookmark '%s'"), argv[1]); 6848 6849 switch (ret) { 6850 case EXDEV: 6851 err_msg = "bookmark is in a different pool"; 6852 break; 6853 case EEXIST: 6854 err_msg = "bookmark exists"; 6855 break; 6856 case EINVAL: 6857 err_msg = "invalid argument"; 6858 break; 6859 case ENOTSUP: 6860 err_msg = "bookmark feature not enabled"; 6861 break; 6862 case ENOSPC: 6863 err_msg = "out of space"; 6864 break; 6865 default: 6866 err_msg = "unknown error"; 6867 break; 6868 } 6869 (void) fprintf(stderr, "%s: %s\n", errbuf, 6870 dgettext(TEXT_DOMAIN, err_msg)); 6871 } 6872 6873 return (ret != 0); 6874 6875 usage: 6876 usage(B_FALSE); 6877 return (-1); 6878 } 6879 6880 int 6881 main(int argc, char **argv) 6882 { 6883 int ret = 0; 6884 int i; 6885 char *progname; 6886 char *cmdname; 6887 6888 (void) setlocale(LC_ALL, ""); 6889 (void) textdomain(TEXT_DOMAIN); 6890 6891 opterr = 0; 6892 6893 if ((g_zfs = libzfs_init()) == NULL) { 6894 (void) fprintf(stderr, gettext("internal error: failed to " 6895 "initialize ZFS library\n")); 6896 return (1); 6897 } 6898 6899 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6900 6901 libzfs_print_on_error(g_zfs, B_TRUE); 6902 6903 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6904 (void) fprintf(stderr, gettext("internal error: unable to " 6905 "open %s\n"), MNTTAB); 6906 return (1); 6907 } 6908 6909 /* 6910 * This command also doubles as the /etc/fs mount and unmount program. 6911 * Determine if we should take this behavior based on argv[0]. 6912 */ 6913 progname = basename(argv[0]); 6914 if (strcmp(progname, "mount") == 0) { 6915 ret = manual_mount(argc, argv); 6916 } else if (strcmp(progname, "umount") == 0) { 6917 ret = manual_unmount(argc, argv); 6918 } else { 6919 /* 6920 * Make sure the user has specified some command. 6921 */ 6922 if (argc < 2) { 6923 (void) fprintf(stderr, gettext("missing command\n")); 6924 usage(B_FALSE); 6925 } 6926 6927 cmdname = argv[1]; 6928 6929 /* 6930 * The 'umount' command is an alias for 'unmount' 6931 */ 6932 if (strcmp(cmdname, "umount") == 0) 6933 cmdname = "unmount"; 6934 6935 /* 6936 * The 'recv' command is an alias for 'receive' 6937 */ 6938 if (strcmp(cmdname, "recv") == 0) 6939 cmdname = "receive"; 6940 6941 /* 6942 * The 'snap' command is an alias for 'snapshot' 6943 */ 6944 if (strcmp(cmdname, "snap") == 0) 6945 cmdname = "snapshot"; 6946 6947 /* 6948 * Special case '-?' 6949 */ 6950 if (strcmp(cmdname, "-?") == 0) 6951 usage(B_TRUE); 6952 6953 /* 6954 * Run the appropriate command. 6955 */ 6956 libzfs_mnttab_cache(g_zfs, B_TRUE); 6957 if (find_command_idx(cmdname, &i) == 0) { 6958 current_command = &command_table[i]; 6959 ret = command_table[i].func(argc - 1, argv + 1); 6960 } else if (strchr(cmdname, '=') != NULL) { 6961 verify(find_command_idx("set", &i) == 0); 6962 current_command = &command_table[i]; 6963 ret = command_table[i].func(argc, argv); 6964 } else { 6965 (void) fprintf(stderr, gettext("unrecognized " 6966 "command '%s'\n"), cmdname); 6967 usage(B_FALSE); 6968 } 6969 libzfs_mnttab_cache(g_zfs, B_FALSE); 6970 } 6971 6972 (void) fclose(mnttab_file); 6973 6974 if (ret == 0 && log_history) 6975 (void) zpool_log_history(g_zfs, history_str); 6976 6977 libzfs_fini(g_zfs); 6978 6979 /* 6980 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6981 * for the purposes of running ::findleaks. 6982 */ 6983 if (getenv("ZFS_ABORT") != NULL) { 6984 (void) printf("dumping core by request\n"); 6985 abort(); 6986 } 6987 6988 return (ret); 6989 } 6990