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 * Copyright (c) 2014 Integros [integros.com] 30 */ 31 32 #include <assert.h> 33 #include <ctype.h> 34 #include <errno.h> 35 #include <libgen.h> 36 #include <libintl.h> 37 #include <libuutil.h> 38 #include <libnvpair.h> 39 #include <locale.h> 40 #include <stddef.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <strings.h> 44 #include <unistd.h> 45 #include <fcntl.h> 46 #include <zone.h> 47 #include <grp.h> 48 #include <pwd.h> 49 #include <signal.h> 50 #include <sys/list.h> 51 #include <sys/mkdev.h> 52 #include <sys/mntent.h> 53 #include <sys/mnttab.h> 54 #include <sys/mount.h> 55 #include <sys/stat.h> 56 #include <sys/fs/zfs.h> 57 #include <sys/types.h> 58 #include <time.h> 59 60 #include <libzfs.h> 61 #include <libzfs_core.h> 62 #include <zfs_prop.h> 63 #include <zfs_deleg.h> 64 #include <libuutil.h> 65 #include <aclutils.h> 66 #include <directory.h> 67 #include <idmap.h> 68 69 #include "zfs_iter.h" 70 #include "zfs_util.h" 71 #include "zfs_comutil.h" 72 73 libzfs_handle_t *g_zfs; 74 75 static FILE *mnttab_file; 76 static char history_str[HIS_MAX_RECORD_LEN]; 77 static boolean_t log_history = B_TRUE; 78 79 static int zfs_do_clone(int argc, char **argv); 80 static int zfs_do_create(int argc, char **argv); 81 static int zfs_do_destroy(int argc, char **argv); 82 static int zfs_do_get(int argc, char **argv); 83 static int zfs_do_inherit(int argc, char **argv); 84 static int zfs_do_list(int argc, char **argv); 85 static int zfs_do_mount(int argc, char **argv); 86 static int zfs_do_rename(int argc, char **argv); 87 static int zfs_do_rollback(int argc, char **argv); 88 static int zfs_do_set(int argc, char **argv); 89 static int zfs_do_upgrade(int argc, char **argv); 90 static int zfs_do_snapshot(int argc, char **argv); 91 static int zfs_do_unmount(int argc, char **argv); 92 static int zfs_do_share(int argc, char **argv); 93 static int zfs_do_unshare(int argc, char **argv); 94 static int zfs_do_send(int argc, char **argv); 95 static int zfs_do_receive(int argc, char **argv); 96 static int zfs_do_promote(int argc, char **argv); 97 static int zfs_do_userspace(int argc, char **argv); 98 static int zfs_do_allow(int argc, char **argv); 99 static int zfs_do_unallow(int argc, char **argv); 100 static int zfs_do_hold(int argc, char **argv); 101 static int zfs_do_holds(int argc, char **argv); 102 static int zfs_do_release(int argc, char **argv); 103 static int zfs_do_diff(int argc, char **argv); 104 static int zfs_do_bookmark(int argc, char **argv); 105 106 /* 107 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 108 */ 109 110 #ifdef DEBUG 111 const char * 112 _umem_debug_init(void) 113 { 114 return ("default,verbose"); /* $UMEM_DEBUG setting */ 115 } 116 117 const char * 118 _umem_logging_init(void) 119 { 120 return ("fail,contents"); /* $UMEM_LOGGING setting */ 121 } 122 #endif 123 124 typedef enum { 125 HELP_CLONE, 126 HELP_CREATE, 127 HELP_DESTROY, 128 HELP_GET, 129 HELP_INHERIT, 130 HELP_UPGRADE, 131 HELP_LIST, 132 HELP_MOUNT, 133 HELP_PROMOTE, 134 HELP_RECEIVE, 135 HELP_RENAME, 136 HELP_ROLLBACK, 137 HELP_SEND, 138 HELP_SET, 139 HELP_SHARE, 140 HELP_SNAPSHOT, 141 HELP_UNMOUNT, 142 HELP_UNSHARE, 143 HELP_ALLOW, 144 HELP_UNALLOW, 145 HELP_USERSPACE, 146 HELP_GROUPSPACE, 147 HELP_HOLD, 148 HELP_HOLDS, 149 HELP_RELEASE, 150 HELP_DIFF, 151 HELP_BOOKMARK, 152 } zfs_help_t; 153 154 typedef struct zfs_command { 155 const char *name; 156 int (*func)(int argc, char **argv); 157 zfs_help_t usage; 158 } zfs_command_t; 159 160 /* 161 * Master command table. Each ZFS command has a name, associated function, and 162 * usage message. The usage messages need to be internationalized, so we have 163 * to have a function to return the usage message based on a command index. 164 * 165 * These commands are organized according to how they are displayed in the usage 166 * message. An empty command (one with a NULL name) indicates an empty line in 167 * the generic usage message. 168 */ 169 static zfs_command_t command_table[] = { 170 { "create", zfs_do_create, HELP_CREATE }, 171 { "destroy", zfs_do_destroy, HELP_DESTROY }, 172 { NULL }, 173 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 174 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 175 { "clone", zfs_do_clone, HELP_CLONE }, 176 { "promote", zfs_do_promote, HELP_PROMOTE }, 177 { "rename", zfs_do_rename, HELP_RENAME }, 178 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 179 { NULL }, 180 { "list", zfs_do_list, HELP_LIST }, 181 { NULL }, 182 { "set", zfs_do_set, HELP_SET }, 183 { "get", zfs_do_get, HELP_GET }, 184 { "inherit", zfs_do_inherit, HELP_INHERIT }, 185 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 186 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 187 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 188 { NULL }, 189 { "mount", zfs_do_mount, HELP_MOUNT }, 190 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 191 { "share", zfs_do_share, HELP_SHARE }, 192 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 193 { NULL }, 194 { "send", zfs_do_send, HELP_SEND }, 195 { "receive", zfs_do_receive, HELP_RECEIVE }, 196 { NULL }, 197 { "allow", zfs_do_allow, HELP_ALLOW }, 198 { NULL }, 199 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 200 { NULL }, 201 { "hold", zfs_do_hold, HELP_HOLD }, 202 { "holds", zfs_do_holds, HELP_HOLDS }, 203 { "release", zfs_do_release, HELP_RELEASE }, 204 { "diff", zfs_do_diff, HELP_DIFF }, 205 }; 206 207 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 208 209 zfs_command_t *current_command; 210 211 static const char * 212 get_usage(zfs_help_t idx) 213 { 214 switch (idx) { 215 case HELP_CLONE: 216 return (gettext("\tclone [-p] [-o property=value] ... " 217 "<snapshot> <filesystem|volume>\n")); 218 case HELP_CREATE: 219 return (gettext("\tcreate [-p] [-o property=value] ... " 220 "<filesystem>\n" 221 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 222 "-V <size> <volume>\n")); 223 case HELP_DESTROY: 224 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 225 "\tdestroy [-dnpRrv] " 226 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 227 "\tdestroy <filesystem|volume>#<bookmark>\n")); 228 case HELP_GET: 229 return (gettext("\tget [-rHp] [-d max] " 230 "[-o \"all\" | field[,...]]\n" 231 "\t [-t type[,...]] [-s source[,...]]\n" 232 "\t <\"all\" | property[,...]> " 233 "[filesystem|volume|snapshot] ...\n")); 234 case HELP_INHERIT: 235 return (gettext("\tinherit [-rS] <property> " 236 "<filesystem|volume|snapshot> ...\n")); 237 case HELP_UPGRADE: 238 return (gettext("\tupgrade [-v]\n" 239 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 240 case HELP_LIST: 241 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 242 "[-s property]...\n\t [-S property]... [-t type[,...]] " 243 "[filesystem|volume|snapshot] ...\n")); 244 case HELP_MOUNT: 245 return (gettext("\tmount\n" 246 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 247 case HELP_PROMOTE: 248 return (gettext("\tpromote <clone-filesystem>\n")); 249 case HELP_RECEIVE: 250 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 251 "snapshot>\n" 252 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 253 "<filesystem>\n" 254 "\treceive -A <filesystem|volume>\n")); 255 case HELP_RENAME: 256 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 257 "<filesystem|volume|snapshot>\n" 258 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 259 "\trename -r <snapshot> <snapshot>\n")); 260 case HELP_ROLLBACK: 261 return (gettext("\trollback [-rRf] <snapshot>\n")); 262 case HELP_SEND: 263 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 264 "<snapshot>\n" 265 "\tsend [-Le] [-i snapshot|bookmark] " 266 "<filesystem|volume|snapshot>\n" 267 "\tsend [-nvPe] -t <receive_resume_token>\n")); 268 case HELP_SET: 269 return (gettext("\tset <property=value> ... " 270 "<filesystem|volume|snapshot> ...\n")); 271 case HELP_SHARE: 272 return (gettext("\tshare <-a | filesystem>\n")); 273 case HELP_SNAPSHOT: 274 return (gettext("\tsnapshot [-r] [-o property=value] ... " 275 "<filesystem|volume>@<snap> ...\n")); 276 case HELP_UNMOUNT: 277 return (gettext("\tunmount [-f] " 278 "<-a | filesystem|mountpoint>\n")); 279 case HELP_UNSHARE: 280 return (gettext("\tunshare " 281 "<-a | filesystem|mountpoint>\n")); 282 case HELP_ALLOW: 283 return (gettext("\tallow <filesystem|volume>\n" 284 "\tallow [-ldug] " 285 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 286 "\t <filesystem|volume>\n" 287 "\tallow [-ld] -e <perm|@setname>[,...] " 288 "<filesystem|volume>\n" 289 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 290 "\tallow -s @setname <perm|@setname>[,...] " 291 "<filesystem|volume>\n")); 292 case HELP_UNALLOW: 293 return (gettext("\tunallow [-rldug] " 294 "<\"everyone\"|user|group>[,...]\n" 295 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 296 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 297 "<filesystem|volume>\n" 298 "\tunallow [-r] -c [<perm|@setname>[,...]] " 299 "<filesystem|volume>\n" 300 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 301 "<filesystem|volume>\n")); 302 case HELP_USERSPACE: 303 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 304 "[-s field] ...\n" 305 "\t [-S field] ... [-t type[,...]] " 306 "<filesystem|snapshot>\n")); 307 case HELP_GROUPSPACE: 308 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 309 "[-s field] ...\n" 310 "\t [-S field] ... [-t type[,...]] " 311 "<filesystem|snapshot>\n")); 312 case HELP_HOLD: 313 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 314 case HELP_HOLDS: 315 return (gettext("\tholds [-r] <snapshot> ...\n")); 316 case HELP_RELEASE: 317 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 318 case HELP_DIFF: 319 return (gettext("\tdiff [-FHt] <snapshot> " 320 "[snapshot|filesystem]\n")); 321 case HELP_BOOKMARK: 322 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 323 } 324 325 abort(); 326 /* NOTREACHED */ 327 } 328 329 void 330 nomem(void) 331 { 332 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 333 exit(1); 334 } 335 336 /* 337 * Utility function to guarantee malloc() success. 338 */ 339 340 void * 341 safe_malloc(size_t size) 342 { 343 void *data; 344 345 if ((data = calloc(1, size)) == NULL) 346 nomem(); 347 348 return (data); 349 } 350 351 static char * 352 safe_strdup(char *str) 353 { 354 char *dupstr = strdup(str); 355 356 if (dupstr == NULL) 357 nomem(); 358 359 return (dupstr); 360 } 361 362 /* 363 * Callback routine that will print out information for each of 364 * the properties. 365 */ 366 static int 367 usage_prop_cb(int prop, void *cb) 368 { 369 FILE *fp = cb; 370 371 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 372 373 if (zfs_prop_readonly(prop)) 374 (void) fprintf(fp, " NO "); 375 else 376 (void) fprintf(fp, "YES "); 377 378 if (zfs_prop_inheritable(prop)) 379 (void) fprintf(fp, " YES "); 380 else 381 (void) fprintf(fp, " NO "); 382 383 if (zfs_prop_values(prop) == NULL) 384 (void) fprintf(fp, "-\n"); 385 else 386 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 387 388 return (ZPROP_CONT); 389 } 390 391 /* 392 * Display usage message. If we're inside a command, display only the usage for 393 * that command. Otherwise, iterate over the entire command table and display 394 * a complete usage message. 395 */ 396 static void 397 usage(boolean_t requested) 398 { 399 int i; 400 boolean_t show_properties = B_FALSE; 401 FILE *fp = requested ? stdout : stderr; 402 403 if (current_command == NULL) { 404 405 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 406 (void) fprintf(fp, 407 gettext("where 'command' is one of the following:\n\n")); 408 409 for (i = 0; i < NCOMMAND; i++) { 410 if (command_table[i].name == NULL) 411 (void) fprintf(fp, "\n"); 412 else 413 (void) fprintf(fp, "%s", 414 get_usage(command_table[i].usage)); 415 } 416 417 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 418 "pool/[dataset/]*dataset[@name]\n")); 419 } else { 420 (void) fprintf(fp, gettext("usage:\n")); 421 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 422 } 423 424 if (current_command != NULL && 425 (strcmp(current_command->name, "set") == 0 || 426 strcmp(current_command->name, "get") == 0 || 427 strcmp(current_command->name, "inherit") == 0 || 428 strcmp(current_command->name, "list") == 0)) 429 show_properties = B_TRUE; 430 431 if (show_properties) { 432 (void) fprintf(fp, 433 gettext("\nThe following properties are supported:\n")); 434 435 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 436 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 437 438 /* Iterate over all properties */ 439 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 440 ZFS_TYPE_DATASET); 441 442 (void) fprintf(fp, "\t%-15s ", "userused@..."); 443 (void) fprintf(fp, " NO NO <size>\n"); 444 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 445 (void) fprintf(fp, " NO NO <size>\n"); 446 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 447 (void) fprintf(fp, "YES NO <size> | none\n"); 448 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 449 (void) fprintf(fp, "YES NO <size> | none\n"); 450 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 451 (void) fprintf(fp, " NO NO <size>\n"); 452 453 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 454 "with standard units such as K, M, G, etc.\n")); 455 (void) fprintf(fp, gettext("\nUser-defined properties can " 456 "be specified by using a name containing a colon (:).\n")); 457 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 458 "properties must be appended with\n" 459 "a user or group specifier of one of these forms:\n" 460 " POSIX name (eg: \"matt\")\n" 461 " POSIX id (eg: \"126829\")\n" 462 " SMB name@domain (eg: \"matt@sun\")\n" 463 " SMB SID (eg: \"S-1-234-567-89\")\n")); 464 } else { 465 (void) fprintf(fp, 466 gettext("\nFor the property list, run: %s\n"), 467 "zfs set|get"); 468 (void) fprintf(fp, 469 gettext("\nFor the delegated permission list, run: %s\n"), 470 "zfs allow|unallow"); 471 } 472 473 /* 474 * See comments at end of main(). 475 */ 476 if (getenv("ZFS_ABORT") != NULL) { 477 (void) printf("dumping core by request\n"); 478 abort(); 479 } 480 481 exit(requested ? 0 : 2); 482 } 483 484 /* 485 * Take a property=value argument string and add it to the given nvlist. 486 * Modifies the argument inplace. 487 */ 488 static int 489 parseprop(nvlist_t *props, char *propname) 490 { 491 char *propval, *strval; 492 493 if ((propval = strchr(propname, '=')) == NULL) { 494 (void) fprintf(stderr, gettext("missing " 495 "'=' for property=value argument\n")); 496 return (-1); 497 } 498 *propval = '\0'; 499 propval++; 500 if (nvlist_lookup_string(props, propname, &strval) == 0) { 501 (void) fprintf(stderr, gettext("property '%s' " 502 "specified multiple times\n"), propname); 503 return (-1); 504 } 505 if (nvlist_add_string(props, propname, propval) != 0) 506 nomem(); 507 return (0); 508 } 509 510 static int 511 parse_depth(char *opt, int *flags) 512 { 513 char *tmp; 514 int depth; 515 516 depth = (int)strtol(opt, &tmp, 0); 517 if (*tmp) { 518 (void) fprintf(stderr, 519 gettext("%s is not an integer\n"), optarg); 520 usage(B_FALSE); 521 } 522 if (depth < 0) { 523 (void) fprintf(stderr, 524 gettext("Depth can not be negative.\n")); 525 usage(B_FALSE); 526 } 527 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 528 return (depth); 529 } 530 531 #define PROGRESS_DELAY 2 /* seconds */ 532 533 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"; 534 static time_t pt_begin; 535 static char *pt_header = NULL; 536 static boolean_t pt_shown; 537 538 static void 539 start_progress_timer(void) 540 { 541 pt_begin = time(NULL) + PROGRESS_DELAY; 542 pt_shown = B_FALSE; 543 } 544 545 static void 546 set_progress_header(char *header) 547 { 548 assert(pt_header == NULL); 549 pt_header = safe_strdup(header); 550 if (pt_shown) { 551 (void) printf("%s: ", header); 552 (void) fflush(stdout); 553 } 554 } 555 556 static void 557 update_progress(char *update) 558 { 559 if (!pt_shown && time(NULL) > pt_begin) { 560 int len = strlen(update); 561 562 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 563 pt_reverse); 564 (void) fflush(stdout); 565 pt_shown = B_TRUE; 566 } else if (pt_shown) { 567 int len = strlen(update); 568 569 (void) printf("%s%*.*s", update, len, len, pt_reverse); 570 (void) fflush(stdout); 571 } 572 } 573 574 static void 575 finish_progress(char *done) 576 { 577 if (pt_shown) { 578 (void) printf("%s\n", done); 579 (void) fflush(stdout); 580 } 581 free(pt_header); 582 pt_header = NULL; 583 } 584 585 /* 586 * Check if the dataset is mountable and should be automatically mounted. 587 */ 588 static boolean_t 589 should_auto_mount(zfs_handle_t *zhp) 590 { 591 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 592 return (B_FALSE); 593 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 594 } 595 596 /* 597 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 598 * 599 * Given an existing dataset, create a writable copy whose initial contents 600 * are the same as the source. The newly created dataset maintains a 601 * dependency on the original; the original cannot be destroyed so long as 602 * the clone exists. 603 * 604 * The '-p' flag creates all the non-existing ancestors of the target first. 605 */ 606 static int 607 zfs_do_clone(int argc, char **argv) 608 { 609 zfs_handle_t *zhp = NULL; 610 boolean_t parents = B_FALSE; 611 nvlist_t *props; 612 int ret = 0; 613 int c; 614 615 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 616 nomem(); 617 618 /* check options */ 619 while ((c = getopt(argc, argv, "o:p")) != -1) { 620 switch (c) { 621 case 'o': 622 if (parseprop(props, optarg) != 0) 623 return (1); 624 break; 625 case 'p': 626 parents = B_TRUE; 627 break; 628 case '?': 629 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 630 optopt); 631 goto usage; 632 } 633 } 634 635 argc -= optind; 636 argv += optind; 637 638 /* check number of arguments */ 639 if (argc < 1) { 640 (void) fprintf(stderr, gettext("missing source dataset " 641 "argument\n")); 642 goto usage; 643 } 644 if (argc < 2) { 645 (void) fprintf(stderr, gettext("missing target dataset " 646 "argument\n")); 647 goto usage; 648 } 649 if (argc > 2) { 650 (void) fprintf(stderr, gettext("too many arguments\n")); 651 goto usage; 652 } 653 654 /* open the source dataset */ 655 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 656 return (1); 657 658 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 659 ZFS_TYPE_VOLUME)) { 660 /* 661 * Now create the ancestors of the target dataset. If the 662 * target already exists and '-p' option was used we should not 663 * complain. 664 */ 665 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 666 ZFS_TYPE_VOLUME)) 667 return (0); 668 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 669 return (1); 670 } 671 672 /* pass to libzfs */ 673 ret = zfs_clone(zhp, argv[1], props); 674 675 /* create the mountpoint if necessary */ 676 if (ret == 0) { 677 zfs_handle_t *clone; 678 679 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 680 if (clone != NULL) { 681 /* 682 * If the user doesn't want the dataset 683 * automatically mounted, then skip the mount/share 684 * step. 685 */ 686 if (should_auto_mount(clone)) { 687 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 688 (void) fprintf(stderr, gettext("clone " 689 "successfully created, " 690 "but not mounted\n")); 691 } else if ((ret = zfs_share(clone)) != 0) { 692 (void) fprintf(stderr, gettext("clone " 693 "successfully created, " 694 "but not shared\n")); 695 } 696 } 697 zfs_close(clone); 698 } 699 } 700 701 zfs_close(zhp); 702 nvlist_free(props); 703 704 return (!!ret); 705 706 usage: 707 if (zhp) 708 zfs_close(zhp); 709 nvlist_free(props); 710 usage(B_FALSE); 711 return (-1); 712 } 713 714 /* 715 * zfs create [-p] [-o prop=value] ... fs 716 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 717 * 718 * Create a new dataset. This command can be used to create filesystems 719 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 720 * For volumes, the user must specify a size to be used. 721 * 722 * The '-s' flag applies only to volumes, and indicates that we should not try 723 * to set the reservation for this volume. By default we set a reservation 724 * equal to the size for any volume. For pools with SPA_VERSION >= 725 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 726 * 727 * The '-p' flag creates all the non-existing ancestors of the target first. 728 */ 729 static int 730 zfs_do_create(int argc, char **argv) 731 { 732 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 733 zfs_handle_t *zhp = NULL; 734 uint64_t volsize; 735 int c; 736 boolean_t noreserve = B_FALSE; 737 boolean_t bflag = B_FALSE; 738 boolean_t parents = B_FALSE; 739 int ret = 1; 740 nvlist_t *props; 741 uint64_t intval; 742 743 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 744 nomem(); 745 746 /* check options */ 747 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 748 switch (c) { 749 case 'V': 750 type = ZFS_TYPE_VOLUME; 751 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 752 (void) fprintf(stderr, gettext("bad volume " 753 "size '%s': %s\n"), optarg, 754 libzfs_error_description(g_zfs)); 755 goto error; 756 } 757 758 if (nvlist_add_uint64(props, 759 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 760 nomem(); 761 volsize = intval; 762 break; 763 case 'p': 764 parents = B_TRUE; 765 break; 766 case 'b': 767 bflag = B_TRUE; 768 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 769 (void) fprintf(stderr, gettext("bad volume " 770 "block size '%s': %s\n"), optarg, 771 libzfs_error_description(g_zfs)); 772 goto error; 773 } 774 775 if (nvlist_add_uint64(props, 776 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 777 intval) != 0) 778 nomem(); 779 break; 780 case 'o': 781 if (parseprop(props, optarg) != 0) 782 goto error; 783 break; 784 case 's': 785 noreserve = B_TRUE; 786 break; 787 case ':': 788 (void) fprintf(stderr, gettext("missing size " 789 "argument\n")); 790 goto badusage; 791 case '?': 792 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 793 optopt); 794 goto badusage; 795 } 796 } 797 798 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 799 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 800 "used when creating a volume\n")); 801 goto badusage; 802 } 803 804 argc -= optind; 805 argv += optind; 806 807 /* check number of arguments */ 808 if (argc == 0) { 809 (void) fprintf(stderr, gettext("missing %s argument\n"), 810 zfs_type_to_name(type)); 811 goto badusage; 812 } 813 if (argc > 1) { 814 (void) fprintf(stderr, gettext("too many arguments\n")); 815 goto badusage; 816 } 817 818 if (type == ZFS_TYPE_VOLUME && !noreserve) { 819 zpool_handle_t *zpool_handle; 820 nvlist_t *real_props; 821 uint64_t spa_version; 822 char *p; 823 zfs_prop_t resv_prop; 824 char *strval; 825 char msg[1024]; 826 827 if (p = strchr(argv[0], '/')) 828 *p = '\0'; 829 zpool_handle = zpool_open(g_zfs, argv[0]); 830 if (p != NULL) 831 *p = '/'; 832 if (zpool_handle == NULL) 833 goto error; 834 spa_version = zpool_get_prop_int(zpool_handle, 835 ZPOOL_PROP_VERSION, NULL); 836 if (spa_version >= SPA_VERSION_REFRESERVATION) 837 resv_prop = ZFS_PROP_REFRESERVATION; 838 else 839 resv_prop = ZFS_PROP_RESERVATION; 840 841 (void) snprintf(msg, sizeof (msg), 842 gettext("cannot create '%s'"), argv[0]); 843 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 844 props, 0, NULL, zpool_handle, msg)) == NULL) { 845 zpool_close(zpool_handle); 846 goto error; 847 } 848 zpool_close(zpool_handle); 849 850 volsize = zvol_volsize_to_reservation(volsize, real_props); 851 nvlist_free(real_props); 852 853 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 854 &strval) != 0) { 855 if (nvlist_add_uint64(props, 856 zfs_prop_to_name(resv_prop), volsize) != 0) { 857 nvlist_free(props); 858 nomem(); 859 } 860 } 861 } 862 863 if (parents && zfs_name_valid(argv[0], type)) { 864 /* 865 * Now create the ancestors of target dataset. If the target 866 * already exists and '-p' option was used we should not 867 * complain. 868 */ 869 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 870 ret = 0; 871 goto error; 872 } 873 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 874 goto error; 875 } 876 877 /* pass to libzfs */ 878 if (zfs_create(g_zfs, argv[0], type, props) != 0) 879 goto error; 880 881 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 882 goto error; 883 884 ret = 0; 885 886 /* 887 * Mount and/or share the new filesystem as appropriate. We provide a 888 * verbose error message to let the user know that their filesystem was 889 * in fact created, even if we failed to mount or share it. 890 * If the user doesn't want the dataset automatically mounted, 891 * then skip the mount/share step altogether. 892 */ 893 if (should_auto_mount(zhp)) { 894 if (zfs_mount(zhp, NULL, 0) != 0) { 895 (void) fprintf(stderr, gettext("filesystem " 896 "successfully created, but not mounted\n")); 897 ret = 1; 898 } else if (zfs_share(zhp) != 0) { 899 (void) fprintf(stderr, gettext("filesystem " 900 "successfully created, but not shared\n")); 901 ret = 1; 902 } 903 } 904 905 error: 906 if (zhp) 907 zfs_close(zhp); 908 nvlist_free(props); 909 return (ret); 910 badusage: 911 nvlist_free(props); 912 usage(B_FALSE); 913 return (2); 914 } 915 916 /* 917 * zfs destroy [-rRf] <fs, vol> 918 * zfs destroy [-rRd] <snap> 919 * 920 * -r Recursively destroy all children 921 * -R Recursively destroy all dependents, including clones 922 * -f Force unmounting of any dependents 923 * -d If we can't destroy now, mark for deferred destruction 924 * 925 * Destroys the given dataset. By default, it will unmount any filesystems, 926 * and refuse to destroy a dataset that has any dependents. A dependent can 927 * either be a child, or a clone of a child. 928 */ 929 typedef struct destroy_cbdata { 930 boolean_t cb_first; 931 boolean_t cb_force; 932 boolean_t cb_recurse; 933 boolean_t cb_error; 934 boolean_t cb_doclones; 935 zfs_handle_t *cb_target; 936 boolean_t cb_defer_destroy; 937 boolean_t cb_verbose; 938 boolean_t cb_parsable; 939 boolean_t cb_dryrun; 940 nvlist_t *cb_nvl; 941 nvlist_t *cb_batchedsnaps; 942 943 /* first snap in contiguous run */ 944 char *cb_firstsnap; 945 /* previous snap in contiguous run */ 946 char *cb_prevsnap; 947 int64_t cb_snapused; 948 char *cb_snapspec; 949 char *cb_bookmark; 950 } destroy_cbdata_t; 951 952 /* 953 * Check for any dependents based on the '-r' or '-R' flags. 954 */ 955 static int 956 destroy_check_dependent(zfs_handle_t *zhp, void *data) 957 { 958 destroy_cbdata_t *cbp = data; 959 const char *tname = zfs_get_name(cbp->cb_target); 960 const char *name = zfs_get_name(zhp); 961 962 if (strncmp(tname, name, strlen(tname)) == 0 && 963 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 964 /* 965 * This is a direct descendant, not a clone somewhere else in 966 * the hierarchy. 967 */ 968 if (cbp->cb_recurse) 969 goto out; 970 971 if (cbp->cb_first) { 972 (void) fprintf(stderr, gettext("cannot destroy '%s': " 973 "%s has children\n"), 974 zfs_get_name(cbp->cb_target), 975 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 976 (void) fprintf(stderr, gettext("use '-r' to destroy " 977 "the following datasets:\n")); 978 cbp->cb_first = B_FALSE; 979 cbp->cb_error = B_TRUE; 980 } 981 982 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 983 } else { 984 /* 985 * This is a clone. We only want to report this if the '-r' 986 * wasn't specified, or the target is a snapshot. 987 */ 988 if (!cbp->cb_recurse && 989 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 990 goto out; 991 992 if (cbp->cb_first) { 993 (void) fprintf(stderr, gettext("cannot destroy '%s': " 994 "%s has dependent clones\n"), 995 zfs_get_name(cbp->cb_target), 996 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 997 (void) fprintf(stderr, gettext("use '-R' to destroy " 998 "the following datasets:\n")); 999 cbp->cb_first = B_FALSE; 1000 cbp->cb_error = B_TRUE; 1001 cbp->cb_dryrun = B_TRUE; 1002 } 1003 1004 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1005 } 1006 1007 out: 1008 zfs_close(zhp); 1009 return (0); 1010 } 1011 1012 static int 1013 destroy_callback(zfs_handle_t *zhp, void *data) 1014 { 1015 destroy_cbdata_t *cb = data; 1016 const char *name = zfs_get_name(zhp); 1017 1018 if (cb->cb_verbose) { 1019 if (cb->cb_parsable) { 1020 (void) printf("destroy\t%s\n", name); 1021 } else if (cb->cb_dryrun) { 1022 (void) printf(gettext("would destroy %s\n"), 1023 name); 1024 } else { 1025 (void) printf(gettext("will destroy %s\n"), 1026 name); 1027 } 1028 } 1029 1030 /* 1031 * Ignore pools (which we've already flagged as an error before getting 1032 * here). 1033 */ 1034 if (strchr(zfs_get_name(zhp), '/') == NULL && 1035 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1036 zfs_close(zhp); 1037 return (0); 1038 } 1039 if (cb->cb_dryrun) { 1040 zfs_close(zhp); 1041 return (0); 1042 } 1043 1044 /* 1045 * We batch up all contiguous snapshots (even of different 1046 * filesystems) and destroy them with one ioctl. We can't 1047 * simply do all snap deletions and then all fs deletions, 1048 * because we must delete a clone before its origin. 1049 */ 1050 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1051 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1052 } else { 1053 int error = zfs_destroy_snaps_nvl(g_zfs, 1054 cb->cb_batchedsnaps, B_FALSE); 1055 fnvlist_free(cb->cb_batchedsnaps); 1056 cb->cb_batchedsnaps = fnvlist_alloc(); 1057 1058 if (error != 0 || 1059 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1060 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1061 zfs_close(zhp); 1062 return (-1); 1063 } 1064 } 1065 1066 zfs_close(zhp); 1067 return (0); 1068 } 1069 1070 static int 1071 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1072 { 1073 destroy_cbdata_t *cb = arg; 1074 const char *name = zfs_get_name(zhp); 1075 int err = 0; 1076 1077 if (nvlist_exists(cb->cb_nvl, name)) { 1078 if (cb->cb_firstsnap == NULL) 1079 cb->cb_firstsnap = strdup(name); 1080 if (cb->cb_prevsnap != NULL) 1081 free(cb->cb_prevsnap); 1082 /* this snap continues the current range */ 1083 cb->cb_prevsnap = strdup(name); 1084 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1085 nomem(); 1086 if (cb->cb_verbose) { 1087 if (cb->cb_parsable) { 1088 (void) printf("destroy\t%s\n", name); 1089 } else if (cb->cb_dryrun) { 1090 (void) printf(gettext("would destroy %s\n"), 1091 name); 1092 } else { 1093 (void) printf(gettext("will destroy %s\n"), 1094 name); 1095 } 1096 } 1097 } else if (cb->cb_firstsnap != NULL) { 1098 /* end of this range */ 1099 uint64_t used = 0; 1100 err = lzc_snaprange_space(cb->cb_firstsnap, 1101 cb->cb_prevsnap, &used); 1102 cb->cb_snapused += used; 1103 free(cb->cb_firstsnap); 1104 cb->cb_firstsnap = NULL; 1105 free(cb->cb_prevsnap); 1106 cb->cb_prevsnap = NULL; 1107 } 1108 zfs_close(zhp); 1109 return (err); 1110 } 1111 1112 static int 1113 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1114 { 1115 int err = 0; 1116 assert(cb->cb_firstsnap == NULL); 1117 assert(cb->cb_prevsnap == NULL); 1118 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1119 if (cb->cb_firstsnap != NULL) { 1120 uint64_t used = 0; 1121 if (err == 0) { 1122 err = lzc_snaprange_space(cb->cb_firstsnap, 1123 cb->cb_prevsnap, &used); 1124 } 1125 cb->cb_snapused += used; 1126 free(cb->cb_firstsnap); 1127 cb->cb_firstsnap = NULL; 1128 free(cb->cb_prevsnap); 1129 cb->cb_prevsnap = NULL; 1130 } 1131 return (err); 1132 } 1133 1134 static int 1135 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1136 { 1137 destroy_cbdata_t *cb = arg; 1138 int err = 0; 1139 1140 /* Check for clones. */ 1141 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1142 cb->cb_target = zhp; 1143 cb->cb_first = B_TRUE; 1144 err = zfs_iter_dependents(zhp, B_TRUE, 1145 destroy_check_dependent, cb); 1146 } 1147 1148 if (err == 0) { 1149 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1150 nomem(); 1151 } 1152 zfs_close(zhp); 1153 return (err); 1154 } 1155 1156 static int 1157 gather_snapshots(zfs_handle_t *zhp, void *arg) 1158 { 1159 destroy_cbdata_t *cb = arg; 1160 int err = 0; 1161 1162 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1163 if (err == ENOENT) 1164 err = 0; 1165 if (err != 0) 1166 goto out; 1167 1168 if (cb->cb_verbose) { 1169 err = destroy_print_snapshots(zhp, cb); 1170 if (err != 0) 1171 goto out; 1172 } 1173 1174 if (cb->cb_recurse) 1175 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1176 1177 out: 1178 zfs_close(zhp); 1179 return (err); 1180 } 1181 1182 static int 1183 destroy_clones(destroy_cbdata_t *cb) 1184 { 1185 nvpair_t *pair; 1186 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1187 pair != NULL; 1188 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1189 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1190 ZFS_TYPE_SNAPSHOT); 1191 if (zhp != NULL) { 1192 boolean_t defer = cb->cb_defer_destroy; 1193 int err = 0; 1194 1195 /* 1196 * We can't defer destroy non-snapshots, so set it to 1197 * false while destroying the clones. 1198 */ 1199 cb->cb_defer_destroy = B_FALSE; 1200 err = zfs_iter_dependents(zhp, B_FALSE, 1201 destroy_callback, cb); 1202 cb->cb_defer_destroy = defer; 1203 zfs_close(zhp); 1204 if (err != 0) 1205 return (err); 1206 } 1207 } 1208 return (0); 1209 } 1210 1211 static int 1212 zfs_do_destroy(int argc, char **argv) 1213 { 1214 destroy_cbdata_t cb = { 0 }; 1215 int rv = 0; 1216 int err = 0; 1217 int c; 1218 zfs_handle_t *zhp = NULL; 1219 char *at, *pound; 1220 zfs_type_t type = ZFS_TYPE_DATASET; 1221 1222 /* check options */ 1223 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1224 switch (c) { 1225 case 'v': 1226 cb.cb_verbose = B_TRUE; 1227 break; 1228 case 'p': 1229 cb.cb_verbose = B_TRUE; 1230 cb.cb_parsable = B_TRUE; 1231 break; 1232 case 'n': 1233 cb.cb_dryrun = B_TRUE; 1234 break; 1235 case 'd': 1236 cb.cb_defer_destroy = B_TRUE; 1237 type = ZFS_TYPE_SNAPSHOT; 1238 break; 1239 case 'f': 1240 cb.cb_force = B_TRUE; 1241 break; 1242 case 'r': 1243 cb.cb_recurse = B_TRUE; 1244 break; 1245 case 'R': 1246 cb.cb_recurse = B_TRUE; 1247 cb.cb_doclones = B_TRUE; 1248 break; 1249 case '?': 1250 default: 1251 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1252 optopt); 1253 usage(B_FALSE); 1254 } 1255 } 1256 1257 argc -= optind; 1258 argv += optind; 1259 1260 /* check number of arguments */ 1261 if (argc == 0) { 1262 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1263 usage(B_FALSE); 1264 } 1265 if (argc > 1) { 1266 (void) fprintf(stderr, gettext("too many arguments\n")); 1267 usage(B_FALSE); 1268 } 1269 1270 at = strchr(argv[0], '@'); 1271 pound = strchr(argv[0], '#'); 1272 if (at != NULL) { 1273 1274 /* Build the list of snaps to destroy in cb_nvl. */ 1275 cb.cb_nvl = fnvlist_alloc(); 1276 1277 *at = '\0'; 1278 zhp = zfs_open(g_zfs, argv[0], 1279 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1280 if (zhp == NULL) 1281 return (1); 1282 1283 cb.cb_snapspec = at + 1; 1284 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1285 cb.cb_error) { 1286 rv = 1; 1287 goto out; 1288 } 1289 1290 if (nvlist_empty(cb.cb_nvl)) { 1291 (void) fprintf(stderr, gettext("could not find any " 1292 "snapshots to destroy; check snapshot names.\n")); 1293 rv = 1; 1294 goto out; 1295 } 1296 1297 if (cb.cb_verbose) { 1298 char buf[16]; 1299 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1300 if (cb.cb_parsable) { 1301 (void) printf("reclaim\t%llu\n", 1302 cb.cb_snapused); 1303 } else if (cb.cb_dryrun) { 1304 (void) printf(gettext("would reclaim %s\n"), 1305 buf); 1306 } else { 1307 (void) printf(gettext("will reclaim %s\n"), 1308 buf); 1309 } 1310 } 1311 1312 if (!cb.cb_dryrun) { 1313 if (cb.cb_doclones) { 1314 cb.cb_batchedsnaps = fnvlist_alloc(); 1315 err = destroy_clones(&cb); 1316 if (err == 0) { 1317 err = zfs_destroy_snaps_nvl(g_zfs, 1318 cb.cb_batchedsnaps, B_FALSE); 1319 } 1320 if (err != 0) { 1321 rv = 1; 1322 goto out; 1323 } 1324 } 1325 if (err == 0) { 1326 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1327 cb.cb_defer_destroy); 1328 } 1329 } 1330 1331 if (err != 0) 1332 rv = 1; 1333 } else if (pound != NULL) { 1334 int err; 1335 nvlist_t *nvl; 1336 1337 if (cb.cb_dryrun) { 1338 (void) fprintf(stderr, 1339 "dryrun is not supported with bookmark\n"); 1340 return (-1); 1341 } 1342 1343 if (cb.cb_defer_destroy) { 1344 (void) fprintf(stderr, 1345 "defer destroy is not supported with bookmark\n"); 1346 return (-1); 1347 } 1348 1349 if (cb.cb_recurse) { 1350 (void) fprintf(stderr, 1351 "recursive is not supported with bookmark\n"); 1352 return (-1); 1353 } 1354 1355 if (!zfs_bookmark_exists(argv[0])) { 1356 (void) fprintf(stderr, gettext("bookmark '%s' " 1357 "does not exist.\n"), argv[0]); 1358 return (1); 1359 } 1360 1361 nvl = fnvlist_alloc(); 1362 fnvlist_add_boolean(nvl, argv[0]); 1363 1364 err = lzc_destroy_bookmarks(nvl, NULL); 1365 if (err != 0) { 1366 (void) zfs_standard_error(g_zfs, err, 1367 "cannot destroy bookmark"); 1368 } 1369 1370 nvlist_free(cb.cb_nvl); 1371 1372 return (err); 1373 } else { 1374 /* Open the given dataset */ 1375 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1376 return (1); 1377 1378 cb.cb_target = zhp; 1379 1380 /* 1381 * Perform an explicit check for pools before going any further. 1382 */ 1383 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1384 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1385 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1386 "operation does not apply to pools\n"), 1387 zfs_get_name(zhp)); 1388 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1389 "%s' to destroy all datasets in the pool\n"), 1390 zfs_get_name(zhp)); 1391 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1392 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1393 rv = 1; 1394 goto out; 1395 } 1396 1397 /* 1398 * Check for any dependents and/or clones. 1399 */ 1400 cb.cb_first = B_TRUE; 1401 if (!cb.cb_doclones && 1402 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1403 &cb) != 0) { 1404 rv = 1; 1405 goto out; 1406 } 1407 1408 if (cb.cb_error) { 1409 rv = 1; 1410 goto out; 1411 } 1412 1413 cb.cb_batchedsnaps = fnvlist_alloc(); 1414 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1415 &cb) != 0) { 1416 rv = 1; 1417 goto out; 1418 } 1419 1420 /* 1421 * Do the real thing. The callback will close the 1422 * handle regardless of whether it succeeds or not. 1423 */ 1424 err = destroy_callback(zhp, &cb); 1425 zhp = NULL; 1426 if (err == 0) { 1427 err = zfs_destroy_snaps_nvl(g_zfs, 1428 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1429 } 1430 if (err != 0) 1431 rv = 1; 1432 } 1433 1434 out: 1435 fnvlist_free(cb.cb_batchedsnaps); 1436 fnvlist_free(cb.cb_nvl); 1437 if (zhp != NULL) 1438 zfs_close(zhp); 1439 return (rv); 1440 } 1441 1442 static boolean_t 1443 is_recvd_column(zprop_get_cbdata_t *cbp) 1444 { 1445 int i; 1446 zfs_get_column_t col; 1447 1448 for (i = 0; i < ZFS_GET_NCOLS && 1449 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1450 if (col == GET_COL_RECVD) 1451 return (B_TRUE); 1452 return (B_FALSE); 1453 } 1454 1455 /* 1456 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1457 * < all | property[,property]... > < fs | snap | vol > ... 1458 * 1459 * -r recurse over any child datasets 1460 * -H scripted mode. Headers are stripped, and fields are separated 1461 * by tabs instead of spaces. 1462 * -o Set of fields to display. One of "name,property,value, 1463 * received,source". Default is "name,property,value,source". 1464 * "all" is an alias for all five. 1465 * -s Set of sources to allow. One of 1466 * "local,default,inherited,received,temporary,none". Default is 1467 * all six. 1468 * -p Display values in parsable (literal) format. 1469 * 1470 * Prints properties for the given datasets. The user can control which 1471 * columns to display as well as which property types to allow. 1472 */ 1473 1474 /* 1475 * Invoked to display the properties for a single dataset. 1476 */ 1477 static int 1478 get_callback(zfs_handle_t *zhp, void *data) 1479 { 1480 char buf[ZFS_MAXPROPLEN]; 1481 char rbuf[ZFS_MAXPROPLEN]; 1482 zprop_source_t sourcetype; 1483 char source[ZFS_MAXNAMELEN]; 1484 zprop_get_cbdata_t *cbp = data; 1485 nvlist_t *user_props = zfs_get_user_props(zhp); 1486 zprop_list_t *pl = cbp->cb_proplist; 1487 nvlist_t *propval; 1488 char *strval; 1489 char *sourceval; 1490 boolean_t received = is_recvd_column(cbp); 1491 1492 for (; pl != NULL; pl = pl->pl_next) { 1493 char *recvdval = NULL; 1494 /* 1495 * Skip the special fake placeholder. This will also skip over 1496 * the name property when 'all' is specified. 1497 */ 1498 if (pl->pl_prop == ZFS_PROP_NAME && 1499 pl == cbp->cb_proplist) 1500 continue; 1501 1502 if (pl->pl_prop != ZPROP_INVAL) { 1503 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1504 sizeof (buf), &sourcetype, source, 1505 sizeof (source), 1506 cbp->cb_literal) != 0) { 1507 if (pl->pl_all) 1508 continue; 1509 if (!zfs_prop_valid_for_type(pl->pl_prop, 1510 ZFS_TYPE_DATASET)) { 1511 (void) fprintf(stderr, 1512 gettext("No such property '%s'\n"), 1513 zfs_prop_to_name(pl->pl_prop)); 1514 continue; 1515 } 1516 sourcetype = ZPROP_SRC_NONE; 1517 (void) strlcpy(buf, "-", sizeof (buf)); 1518 } 1519 1520 if (received && (zfs_prop_get_recvd(zhp, 1521 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1522 cbp->cb_literal) == 0)) 1523 recvdval = rbuf; 1524 1525 zprop_print_one_property(zfs_get_name(zhp), cbp, 1526 zfs_prop_to_name(pl->pl_prop), 1527 buf, sourcetype, source, recvdval); 1528 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1529 sourcetype = ZPROP_SRC_LOCAL; 1530 1531 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1532 buf, sizeof (buf), cbp->cb_literal) != 0) { 1533 sourcetype = ZPROP_SRC_NONE; 1534 (void) strlcpy(buf, "-", sizeof (buf)); 1535 } 1536 1537 zprop_print_one_property(zfs_get_name(zhp), cbp, 1538 pl->pl_user_prop, buf, sourcetype, source, NULL); 1539 } else if (zfs_prop_written(pl->pl_user_prop)) { 1540 sourcetype = ZPROP_SRC_LOCAL; 1541 1542 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1543 buf, sizeof (buf), cbp->cb_literal) != 0) { 1544 sourcetype = ZPROP_SRC_NONE; 1545 (void) strlcpy(buf, "-", sizeof (buf)); 1546 } 1547 1548 zprop_print_one_property(zfs_get_name(zhp), cbp, 1549 pl->pl_user_prop, buf, sourcetype, source, NULL); 1550 } else { 1551 if (nvlist_lookup_nvlist(user_props, 1552 pl->pl_user_prop, &propval) != 0) { 1553 if (pl->pl_all) 1554 continue; 1555 sourcetype = ZPROP_SRC_NONE; 1556 strval = "-"; 1557 } else { 1558 verify(nvlist_lookup_string(propval, 1559 ZPROP_VALUE, &strval) == 0); 1560 verify(nvlist_lookup_string(propval, 1561 ZPROP_SOURCE, &sourceval) == 0); 1562 1563 if (strcmp(sourceval, 1564 zfs_get_name(zhp)) == 0) { 1565 sourcetype = ZPROP_SRC_LOCAL; 1566 } else if (strcmp(sourceval, 1567 ZPROP_SOURCE_VAL_RECVD) == 0) { 1568 sourcetype = ZPROP_SRC_RECEIVED; 1569 } else { 1570 sourcetype = ZPROP_SRC_INHERITED; 1571 (void) strlcpy(source, 1572 sourceval, sizeof (source)); 1573 } 1574 } 1575 1576 if (received && (zfs_prop_get_recvd(zhp, 1577 pl->pl_user_prop, rbuf, sizeof (rbuf), 1578 cbp->cb_literal) == 0)) 1579 recvdval = rbuf; 1580 1581 zprop_print_one_property(zfs_get_name(zhp), cbp, 1582 pl->pl_user_prop, strval, sourcetype, 1583 source, recvdval); 1584 } 1585 } 1586 1587 return (0); 1588 } 1589 1590 static int 1591 zfs_do_get(int argc, char **argv) 1592 { 1593 zprop_get_cbdata_t cb = { 0 }; 1594 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1595 int types = ZFS_TYPE_DATASET; 1596 char *value, *fields; 1597 int ret = 0; 1598 int limit = 0; 1599 zprop_list_t fake_name = { 0 }; 1600 1601 /* 1602 * Set up default columns and sources. 1603 */ 1604 cb.cb_sources = ZPROP_SRC_ALL; 1605 cb.cb_columns[0] = GET_COL_NAME; 1606 cb.cb_columns[1] = GET_COL_PROPERTY; 1607 cb.cb_columns[2] = GET_COL_VALUE; 1608 cb.cb_columns[3] = GET_COL_SOURCE; 1609 cb.cb_type = ZFS_TYPE_DATASET; 1610 1611 /* check options */ 1612 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1613 switch (c) { 1614 case 'p': 1615 cb.cb_literal = B_TRUE; 1616 break; 1617 case 'd': 1618 limit = parse_depth(optarg, &flags); 1619 break; 1620 case 'r': 1621 flags |= ZFS_ITER_RECURSE; 1622 break; 1623 case 'H': 1624 cb.cb_scripted = B_TRUE; 1625 break; 1626 case ':': 1627 (void) fprintf(stderr, gettext("missing argument for " 1628 "'%c' option\n"), optopt); 1629 usage(B_FALSE); 1630 break; 1631 case 'o': 1632 /* 1633 * Process the set of columns to display. We zero out 1634 * the structure to give us a blank slate. 1635 */ 1636 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1637 i = 0; 1638 while (*optarg != '\0') { 1639 static char *col_subopts[] = 1640 { "name", "property", "value", "received", 1641 "source", "all", NULL }; 1642 1643 if (i == ZFS_GET_NCOLS) { 1644 (void) fprintf(stderr, gettext("too " 1645 "many fields given to -o " 1646 "option\n")); 1647 usage(B_FALSE); 1648 } 1649 1650 switch (getsubopt(&optarg, col_subopts, 1651 &value)) { 1652 case 0: 1653 cb.cb_columns[i++] = GET_COL_NAME; 1654 break; 1655 case 1: 1656 cb.cb_columns[i++] = GET_COL_PROPERTY; 1657 break; 1658 case 2: 1659 cb.cb_columns[i++] = GET_COL_VALUE; 1660 break; 1661 case 3: 1662 cb.cb_columns[i++] = GET_COL_RECVD; 1663 flags |= ZFS_ITER_RECVD_PROPS; 1664 break; 1665 case 4: 1666 cb.cb_columns[i++] = GET_COL_SOURCE; 1667 break; 1668 case 5: 1669 if (i > 0) { 1670 (void) fprintf(stderr, 1671 gettext("\"all\" conflicts " 1672 "with specific fields " 1673 "given to -o option\n")); 1674 usage(B_FALSE); 1675 } 1676 cb.cb_columns[0] = GET_COL_NAME; 1677 cb.cb_columns[1] = GET_COL_PROPERTY; 1678 cb.cb_columns[2] = GET_COL_VALUE; 1679 cb.cb_columns[3] = GET_COL_RECVD; 1680 cb.cb_columns[4] = GET_COL_SOURCE; 1681 flags |= ZFS_ITER_RECVD_PROPS; 1682 i = ZFS_GET_NCOLS; 1683 break; 1684 default: 1685 (void) fprintf(stderr, 1686 gettext("invalid column name " 1687 "'%s'\n"), value); 1688 usage(B_FALSE); 1689 } 1690 } 1691 break; 1692 1693 case 's': 1694 cb.cb_sources = 0; 1695 while (*optarg != '\0') { 1696 static char *source_subopts[] = { 1697 "local", "default", "inherited", 1698 "received", "temporary", "none", 1699 NULL }; 1700 1701 switch (getsubopt(&optarg, source_subopts, 1702 &value)) { 1703 case 0: 1704 cb.cb_sources |= ZPROP_SRC_LOCAL; 1705 break; 1706 case 1: 1707 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1708 break; 1709 case 2: 1710 cb.cb_sources |= ZPROP_SRC_INHERITED; 1711 break; 1712 case 3: 1713 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1714 break; 1715 case 4: 1716 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1717 break; 1718 case 5: 1719 cb.cb_sources |= ZPROP_SRC_NONE; 1720 break; 1721 default: 1722 (void) fprintf(stderr, 1723 gettext("invalid source " 1724 "'%s'\n"), value); 1725 usage(B_FALSE); 1726 } 1727 } 1728 break; 1729 1730 case 't': 1731 types = 0; 1732 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1733 while (*optarg != '\0') { 1734 static char *type_subopts[] = { "filesystem", 1735 "volume", "snapshot", "bookmark", 1736 "all", NULL }; 1737 1738 switch (getsubopt(&optarg, type_subopts, 1739 &value)) { 1740 case 0: 1741 types |= ZFS_TYPE_FILESYSTEM; 1742 break; 1743 case 1: 1744 types |= ZFS_TYPE_VOLUME; 1745 break; 1746 case 2: 1747 types |= ZFS_TYPE_SNAPSHOT; 1748 break; 1749 case 3: 1750 types |= ZFS_TYPE_BOOKMARK; 1751 break; 1752 case 4: 1753 types = ZFS_TYPE_DATASET | 1754 ZFS_TYPE_BOOKMARK; 1755 break; 1756 1757 default: 1758 (void) fprintf(stderr, 1759 gettext("invalid type '%s'\n"), 1760 value); 1761 usage(B_FALSE); 1762 } 1763 } 1764 break; 1765 1766 case '?': 1767 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1768 optopt); 1769 usage(B_FALSE); 1770 } 1771 } 1772 1773 argc -= optind; 1774 argv += optind; 1775 1776 if (argc < 1) { 1777 (void) fprintf(stderr, gettext("missing property " 1778 "argument\n")); 1779 usage(B_FALSE); 1780 } 1781 1782 fields = argv[0]; 1783 1784 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1785 != 0) 1786 usage(B_FALSE); 1787 1788 argc--; 1789 argv++; 1790 1791 /* 1792 * As part of zfs_expand_proplist(), we keep track of the maximum column 1793 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1794 * need to know the maximum name length. However, the user likely did 1795 * not specify 'name' as one of the properties to fetch, so we need to 1796 * make sure we always include at least this property for 1797 * print_get_headers() to work properly. 1798 */ 1799 if (cb.cb_proplist != NULL) { 1800 fake_name.pl_prop = ZFS_PROP_NAME; 1801 fake_name.pl_width = strlen(gettext("NAME")); 1802 fake_name.pl_next = cb.cb_proplist; 1803 cb.cb_proplist = &fake_name; 1804 } 1805 1806 cb.cb_first = B_TRUE; 1807 1808 /* run for each object */ 1809 ret = zfs_for_each(argc, argv, flags, types, NULL, 1810 &cb.cb_proplist, limit, get_callback, &cb); 1811 1812 if (cb.cb_proplist == &fake_name) 1813 zprop_free_list(fake_name.pl_next); 1814 else 1815 zprop_free_list(cb.cb_proplist); 1816 1817 return (ret); 1818 } 1819 1820 /* 1821 * inherit [-rS] <property> <fs|vol> ... 1822 * 1823 * -r Recurse over all children 1824 * -S Revert to received value, if any 1825 * 1826 * For each dataset specified on the command line, inherit the given property 1827 * from its parent. Inheriting a property at the pool level will cause it to 1828 * use the default value. The '-r' flag will recurse over all children, and is 1829 * useful for setting a property on a hierarchy-wide basis, regardless of any 1830 * local modifications for each dataset. 1831 */ 1832 1833 typedef struct inherit_cbdata { 1834 const char *cb_propname; 1835 boolean_t cb_received; 1836 } inherit_cbdata_t; 1837 1838 static int 1839 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1840 { 1841 inherit_cbdata_t *cb = data; 1842 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1843 1844 /* 1845 * If we're doing it recursively, then ignore properties that 1846 * are not valid for this type of dataset. 1847 */ 1848 if (prop != ZPROP_INVAL && 1849 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1850 return (0); 1851 1852 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1853 } 1854 1855 static int 1856 inherit_cb(zfs_handle_t *zhp, void *data) 1857 { 1858 inherit_cbdata_t *cb = data; 1859 1860 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1861 } 1862 1863 static int 1864 zfs_do_inherit(int argc, char **argv) 1865 { 1866 int c; 1867 zfs_prop_t prop; 1868 inherit_cbdata_t cb = { 0 }; 1869 char *propname; 1870 int ret = 0; 1871 int flags = 0; 1872 boolean_t received = B_FALSE; 1873 1874 /* check options */ 1875 while ((c = getopt(argc, argv, "rS")) != -1) { 1876 switch (c) { 1877 case 'r': 1878 flags |= ZFS_ITER_RECURSE; 1879 break; 1880 case 'S': 1881 received = B_TRUE; 1882 break; 1883 case '?': 1884 default: 1885 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1886 optopt); 1887 usage(B_FALSE); 1888 } 1889 } 1890 1891 argc -= optind; 1892 argv += optind; 1893 1894 /* check number of arguments */ 1895 if (argc < 1) { 1896 (void) fprintf(stderr, gettext("missing property argument\n")); 1897 usage(B_FALSE); 1898 } 1899 if (argc < 2) { 1900 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1901 usage(B_FALSE); 1902 } 1903 1904 propname = argv[0]; 1905 argc--; 1906 argv++; 1907 1908 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1909 if (zfs_prop_readonly(prop)) { 1910 (void) fprintf(stderr, gettext( 1911 "%s property is read-only\n"), 1912 propname); 1913 return (1); 1914 } 1915 if (!zfs_prop_inheritable(prop) && !received) { 1916 (void) fprintf(stderr, gettext("'%s' property cannot " 1917 "be inherited\n"), propname); 1918 if (prop == ZFS_PROP_QUOTA || 1919 prop == ZFS_PROP_RESERVATION || 1920 prop == ZFS_PROP_REFQUOTA || 1921 prop == ZFS_PROP_REFRESERVATION) { 1922 (void) fprintf(stderr, gettext("use 'zfs set " 1923 "%s=none' to clear\n"), propname); 1924 (void) fprintf(stderr, gettext("use 'zfs " 1925 "inherit -S %s' to revert to received " 1926 "value\n"), propname); 1927 } 1928 return (1); 1929 } 1930 if (received && (prop == ZFS_PROP_VOLSIZE || 1931 prop == ZFS_PROP_VERSION)) { 1932 (void) fprintf(stderr, gettext("'%s' property cannot " 1933 "be reverted to a received value\n"), propname); 1934 return (1); 1935 } 1936 } else if (!zfs_prop_user(propname)) { 1937 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1938 propname); 1939 usage(B_FALSE); 1940 } 1941 1942 cb.cb_propname = propname; 1943 cb.cb_received = received; 1944 1945 if (flags & ZFS_ITER_RECURSE) { 1946 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1947 NULL, NULL, 0, inherit_recurse_cb, &cb); 1948 } else { 1949 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1950 NULL, NULL, 0, inherit_cb, &cb); 1951 } 1952 1953 return (ret); 1954 } 1955 1956 typedef struct upgrade_cbdata { 1957 uint64_t cb_numupgraded; 1958 uint64_t cb_numsamegraded; 1959 uint64_t cb_numfailed; 1960 uint64_t cb_version; 1961 boolean_t cb_newer; 1962 boolean_t cb_foundone; 1963 char cb_lastfs[ZFS_MAXNAMELEN]; 1964 } upgrade_cbdata_t; 1965 1966 static int 1967 same_pool(zfs_handle_t *zhp, const char *name) 1968 { 1969 int len1 = strcspn(name, "/@"); 1970 const char *zhname = zfs_get_name(zhp); 1971 int len2 = strcspn(zhname, "/@"); 1972 1973 if (len1 != len2) 1974 return (B_FALSE); 1975 return (strncmp(name, zhname, len1) == 0); 1976 } 1977 1978 static int 1979 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1980 { 1981 upgrade_cbdata_t *cb = data; 1982 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1983 1984 /* list if it's old/new */ 1985 if ((!cb->cb_newer && version < ZPL_VERSION) || 1986 (cb->cb_newer && version > ZPL_VERSION)) { 1987 char *str; 1988 if (cb->cb_newer) { 1989 str = gettext("The following filesystems are " 1990 "formatted using a newer software version and\n" 1991 "cannot be accessed on the current system.\n\n"); 1992 } else { 1993 str = gettext("The following filesystems are " 1994 "out of date, and can be upgraded. After being\n" 1995 "upgraded, these filesystems (and any 'zfs send' " 1996 "streams generated from\n" 1997 "subsequent snapshots) will no longer be " 1998 "accessible by older software versions.\n\n"); 1999 } 2000 2001 if (!cb->cb_foundone) { 2002 (void) puts(str); 2003 (void) printf(gettext("VER FILESYSTEM\n")); 2004 (void) printf(gettext("--- ------------\n")); 2005 cb->cb_foundone = B_TRUE; 2006 } 2007 2008 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2009 } 2010 2011 return (0); 2012 } 2013 2014 static int 2015 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2016 { 2017 upgrade_cbdata_t *cb = data; 2018 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2019 int needed_spa_version; 2020 int spa_version; 2021 2022 if (zfs_spa_version(zhp, &spa_version) < 0) 2023 return (-1); 2024 2025 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2026 2027 if (needed_spa_version < 0) 2028 return (-1); 2029 2030 if (spa_version < needed_spa_version) { 2031 /* can't upgrade */ 2032 (void) printf(gettext("%s: can not be " 2033 "upgraded; the pool version needs to first " 2034 "be upgraded\nto version %d\n\n"), 2035 zfs_get_name(zhp), needed_spa_version); 2036 cb->cb_numfailed++; 2037 return (0); 2038 } 2039 2040 /* upgrade */ 2041 if (version < cb->cb_version) { 2042 char verstr[16]; 2043 (void) snprintf(verstr, sizeof (verstr), 2044 "%llu", cb->cb_version); 2045 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2046 /* 2047 * If they did "zfs upgrade -a", then we could 2048 * be doing ioctls to different pools. We need 2049 * to log this history once to each pool, and bypass 2050 * the normal history logging that happens in main(). 2051 */ 2052 (void) zpool_log_history(g_zfs, history_str); 2053 log_history = B_FALSE; 2054 } 2055 if (zfs_prop_set(zhp, "version", verstr) == 0) 2056 cb->cb_numupgraded++; 2057 else 2058 cb->cb_numfailed++; 2059 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2060 } else if (version > cb->cb_version) { 2061 /* can't downgrade */ 2062 (void) printf(gettext("%s: can not be downgraded; " 2063 "it is already at version %u\n"), 2064 zfs_get_name(zhp), version); 2065 cb->cb_numfailed++; 2066 } else { 2067 cb->cb_numsamegraded++; 2068 } 2069 return (0); 2070 } 2071 2072 /* 2073 * zfs upgrade 2074 * zfs upgrade -v 2075 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2076 */ 2077 static int 2078 zfs_do_upgrade(int argc, char **argv) 2079 { 2080 boolean_t all = B_FALSE; 2081 boolean_t showversions = B_FALSE; 2082 int ret = 0; 2083 upgrade_cbdata_t cb = { 0 }; 2084 char c; 2085 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2086 2087 /* check options */ 2088 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2089 switch (c) { 2090 case 'r': 2091 flags |= ZFS_ITER_RECURSE; 2092 break; 2093 case 'v': 2094 showversions = B_TRUE; 2095 break; 2096 case 'V': 2097 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2098 optarg, &cb.cb_version) != 0) { 2099 (void) fprintf(stderr, 2100 gettext("invalid version %s\n"), optarg); 2101 usage(B_FALSE); 2102 } 2103 break; 2104 case 'a': 2105 all = B_TRUE; 2106 break; 2107 case '?': 2108 default: 2109 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2110 optopt); 2111 usage(B_FALSE); 2112 } 2113 } 2114 2115 argc -= optind; 2116 argv += optind; 2117 2118 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2119 usage(B_FALSE); 2120 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2121 cb.cb_version || argc)) 2122 usage(B_FALSE); 2123 if ((all || argc) && (showversions)) 2124 usage(B_FALSE); 2125 if (all && argc) 2126 usage(B_FALSE); 2127 2128 if (showversions) { 2129 /* Show info on available versions. */ 2130 (void) printf(gettext("The following filesystem versions are " 2131 "supported:\n\n")); 2132 (void) printf(gettext("VER DESCRIPTION\n")); 2133 (void) printf("--- -----------------------------------------" 2134 "---------------\n"); 2135 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2136 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2137 (void) printf(gettext(" 3 Case insensitive and filesystem " 2138 "user identifier (FUID)\n")); 2139 (void) printf(gettext(" 4 userquota, groupquota " 2140 "properties\n")); 2141 (void) printf(gettext(" 5 System attributes\n")); 2142 (void) printf(gettext("\nFor more information on a particular " 2143 "version, including supported releases,\n")); 2144 (void) printf("see the ZFS Administration Guide.\n\n"); 2145 ret = 0; 2146 } else if (argc || all) { 2147 /* Upgrade filesystems */ 2148 if (cb.cb_version == 0) 2149 cb.cb_version = ZPL_VERSION; 2150 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2151 NULL, NULL, 0, upgrade_set_callback, &cb); 2152 (void) printf(gettext("%llu filesystems upgraded\n"), 2153 cb.cb_numupgraded); 2154 if (cb.cb_numsamegraded) { 2155 (void) printf(gettext("%llu filesystems already at " 2156 "this version\n"), 2157 cb.cb_numsamegraded); 2158 } 2159 if (cb.cb_numfailed != 0) 2160 ret = 1; 2161 } else { 2162 /* List old-version filesytems */ 2163 boolean_t found; 2164 (void) printf(gettext("This system is currently running " 2165 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2166 2167 flags |= ZFS_ITER_RECURSE; 2168 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2169 NULL, NULL, 0, upgrade_list_callback, &cb); 2170 2171 found = cb.cb_foundone; 2172 cb.cb_foundone = B_FALSE; 2173 cb.cb_newer = B_TRUE; 2174 2175 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2176 NULL, NULL, 0, upgrade_list_callback, &cb); 2177 2178 if (!cb.cb_foundone && !found) { 2179 (void) printf(gettext("All filesystems are " 2180 "formatted with the current version.\n")); 2181 } 2182 } 2183 2184 return (ret); 2185 } 2186 2187 /* 2188 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2189 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2190 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2191 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2192 * 2193 * -H Scripted mode; elide headers and separate columns by tabs. 2194 * -i Translate SID to POSIX ID. 2195 * -n Print numeric ID instead of user/group name. 2196 * -o Control which fields to display. 2197 * -p Use exact (parsable) numeric output. 2198 * -s Specify sort columns, descending order. 2199 * -S Specify sort columns, ascending order. 2200 * -t Control which object types to display. 2201 * 2202 * Displays space consumed by, and quotas on, each user in the specified 2203 * filesystem or snapshot. 2204 */ 2205 2206 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2207 enum us_field_types { 2208 USFIELD_TYPE, 2209 USFIELD_NAME, 2210 USFIELD_USED, 2211 USFIELD_QUOTA 2212 }; 2213 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2214 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2215 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2216 2217 #define USTYPE_PSX_GRP (1 << 0) 2218 #define USTYPE_PSX_USR (1 << 1) 2219 #define USTYPE_SMB_GRP (1 << 2) 2220 #define USTYPE_SMB_USR (1 << 3) 2221 #define USTYPE_ALL \ 2222 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2223 2224 static int us_type_bits[] = { 2225 USTYPE_PSX_GRP, 2226 USTYPE_PSX_USR, 2227 USTYPE_SMB_GRP, 2228 USTYPE_SMB_USR, 2229 USTYPE_ALL 2230 }; 2231 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2232 "smbuser", "all" }; 2233 2234 typedef struct us_node { 2235 nvlist_t *usn_nvl; 2236 uu_avl_node_t usn_avlnode; 2237 uu_list_node_t usn_listnode; 2238 } us_node_t; 2239 2240 typedef struct us_cbdata { 2241 nvlist_t **cb_nvlp; 2242 uu_avl_pool_t *cb_avl_pool; 2243 uu_avl_t *cb_avl; 2244 boolean_t cb_numname; 2245 boolean_t cb_nicenum; 2246 boolean_t cb_sid2posix; 2247 zfs_userquota_prop_t cb_prop; 2248 zfs_sort_column_t *cb_sortcol; 2249 size_t cb_width[USFIELD_LAST]; 2250 } us_cbdata_t; 2251 2252 static boolean_t us_populated = B_FALSE; 2253 2254 typedef struct { 2255 zfs_sort_column_t *si_sortcol; 2256 boolean_t si_numname; 2257 } us_sort_info_t; 2258 2259 static int 2260 us_field_index(char *field) 2261 { 2262 int i; 2263 2264 for (i = 0; i < USFIELD_LAST; i++) { 2265 if (strcmp(field, us_field_names[i]) == 0) 2266 return (i); 2267 } 2268 2269 return (-1); 2270 } 2271 2272 static int 2273 us_compare(const void *larg, const void *rarg, void *unused) 2274 { 2275 const us_node_t *l = larg; 2276 const us_node_t *r = rarg; 2277 us_sort_info_t *si = (us_sort_info_t *)unused; 2278 zfs_sort_column_t *sortcol = si->si_sortcol; 2279 boolean_t numname = si->si_numname; 2280 nvlist_t *lnvl = l->usn_nvl; 2281 nvlist_t *rnvl = r->usn_nvl; 2282 int rc = 0; 2283 boolean_t lvb, rvb; 2284 2285 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2286 char *lvstr = ""; 2287 char *rvstr = ""; 2288 uint32_t lv32 = 0; 2289 uint32_t rv32 = 0; 2290 uint64_t lv64 = 0; 2291 uint64_t rv64 = 0; 2292 zfs_prop_t prop = sortcol->sc_prop; 2293 const char *propname = NULL; 2294 boolean_t reverse = sortcol->sc_reverse; 2295 2296 switch (prop) { 2297 case ZFS_PROP_TYPE: 2298 propname = "type"; 2299 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2300 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2301 if (rv32 != lv32) 2302 rc = (rv32 < lv32) ? 1 : -1; 2303 break; 2304 case ZFS_PROP_NAME: 2305 propname = "name"; 2306 if (numname) { 2307 (void) nvlist_lookup_uint64(lnvl, propname, 2308 &lv64); 2309 (void) nvlist_lookup_uint64(rnvl, propname, 2310 &rv64); 2311 if (rv64 != lv64) 2312 rc = (rv64 < lv64) ? 1 : -1; 2313 } else { 2314 (void) nvlist_lookup_string(lnvl, propname, 2315 &lvstr); 2316 (void) nvlist_lookup_string(rnvl, propname, 2317 &rvstr); 2318 rc = strcmp(lvstr, rvstr); 2319 } 2320 break; 2321 case ZFS_PROP_USED: 2322 case ZFS_PROP_QUOTA: 2323 if (!us_populated) 2324 break; 2325 if (prop == ZFS_PROP_USED) 2326 propname = "used"; 2327 else 2328 propname = "quota"; 2329 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2330 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2331 if (rv64 != lv64) 2332 rc = (rv64 < lv64) ? 1 : -1; 2333 break; 2334 } 2335 2336 if (rc != 0) { 2337 if (rc < 0) 2338 return (reverse ? 1 : -1); 2339 else 2340 return (reverse ? -1 : 1); 2341 } 2342 } 2343 2344 /* 2345 * If entries still seem to be the same, check if they are of the same 2346 * type (smbentity is added only if we are doing SID to POSIX ID 2347 * translation where we can have duplicate type/name combinations). 2348 */ 2349 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2350 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2351 lvb != rvb) 2352 return (lvb < rvb ? -1 : 1); 2353 2354 return (0); 2355 } 2356 2357 static inline const char * 2358 us_type2str(unsigned field_type) 2359 { 2360 switch (field_type) { 2361 case USTYPE_PSX_USR: 2362 return ("POSIX User"); 2363 case USTYPE_PSX_GRP: 2364 return ("POSIX Group"); 2365 case USTYPE_SMB_USR: 2366 return ("SMB User"); 2367 case USTYPE_SMB_GRP: 2368 return ("SMB Group"); 2369 default: 2370 return ("Undefined"); 2371 } 2372 } 2373 2374 static int 2375 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2376 { 2377 us_cbdata_t *cb = (us_cbdata_t *)arg; 2378 zfs_userquota_prop_t prop = cb->cb_prop; 2379 char *name = NULL; 2380 char *propname; 2381 char sizebuf[32]; 2382 us_node_t *node; 2383 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2384 uu_avl_t *avl = cb->cb_avl; 2385 uu_avl_index_t idx; 2386 nvlist_t *props; 2387 us_node_t *n; 2388 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2389 unsigned type; 2390 const char *typestr; 2391 size_t namelen; 2392 size_t typelen; 2393 size_t sizelen; 2394 int typeidx, nameidx, sizeidx; 2395 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2396 boolean_t smbentity = B_FALSE; 2397 2398 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2399 nomem(); 2400 node = safe_malloc(sizeof (us_node_t)); 2401 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2402 node->usn_nvl = props; 2403 2404 if (domain != NULL && domain[0] != '\0') { 2405 /* SMB */ 2406 char sid[ZFS_MAXNAMELEN + 32]; 2407 uid_t id; 2408 int err; 2409 int flag = IDMAP_REQ_FLG_USE_CACHE; 2410 2411 smbentity = B_TRUE; 2412 2413 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2414 2415 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2416 type = USTYPE_SMB_GRP; 2417 err = sid_to_id(sid, B_FALSE, &id); 2418 } else { 2419 type = USTYPE_SMB_USR; 2420 err = sid_to_id(sid, B_TRUE, &id); 2421 } 2422 2423 if (err == 0) { 2424 rid = id; 2425 if (!cb->cb_sid2posix) { 2426 if (type == USTYPE_SMB_USR) { 2427 (void) idmap_getwinnamebyuid(rid, flag, 2428 &name, NULL); 2429 } else { 2430 (void) idmap_getwinnamebygid(rid, flag, 2431 &name, NULL); 2432 } 2433 if (name == NULL) 2434 name = sid; 2435 } 2436 } 2437 } 2438 2439 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2440 /* POSIX or -i */ 2441 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2442 type = USTYPE_PSX_GRP; 2443 if (!cb->cb_numname) { 2444 struct group *g; 2445 2446 if ((g = getgrgid(rid)) != NULL) 2447 name = g->gr_name; 2448 } 2449 } else { 2450 type = USTYPE_PSX_USR; 2451 if (!cb->cb_numname) { 2452 struct passwd *p; 2453 2454 if ((p = getpwuid(rid)) != NULL) 2455 name = p->pw_name; 2456 } 2457 } 2458 } 2459 2460 /* 2461 * Make sure that the type/name combination is unique when doing 2462 * SID to POSIX ID translation (hence changing the type from SMB to 2463 * POSIX). 2464 */ 2465 if (cb->cb_sid2posix && 2466 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2467 nomem(); 2468 2469 /* Calculate/update width of TYPE field */ 2470 typestr = us_type2str(type); 2471 typelen = strlen(gettext(typestr)); 2472 typeidx = us_field_index("type"); 2473 if (typelen > cb->cb_width[typeidx]) 2474 cb->cb_width[typeidx] = typelen; 2475 if (nvlist_add_uint32(props, "type", type) != 0) 2476 nomem(); 2477 2478 /* Calculate/update width of NAME field */ 2479 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2480 if (nvlist_add_uint64(props, "name", rid) != 0) 2481 nomem(); 2482 namelen = snprintf(NULL, 0, "%u", rid); 2483 } else { 2484 if (nvlist_add_string(props, "name", name) != 0) 2485 nomem(); 2486 namelen = strlen(name); 2487 } 2488 nameidx = us_field_index("name"); 2489 if (namelen > cb->cb_width[nameidx]) 2490 cb->cb_width[nameidx] = namelen; 2491 2492 /* 2493 * Check if this type/name combination is in the list and update it; 2494 * otherwise add new node to the list. 2495 */ 2496 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2497 uu_avl_insert(avl, node, idx); 2498 } else { 2499 nvlist_free(props); 2500 free(node); 2501 node = n; 2502 props = node->usn_nvl; 2503 } 2504 2505 /* Calculate/update width of USED/QUOTA fields */ 2506 if (cb->cb_nicenum) 2507 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2508 else 2509 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2510 sizelen = strlen(sizebuf); 2511 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2512 propname = "used"; 2513 if (!nvlist_exists(props, "quota")) 2514 (void) nvlist_add_uint64(props, "quota", 0); 2515 } else { 2516 propname = "quota"; 2517 if (!nvlist_exists(props, "used")) 2518 (void) nvlist_add_uint64(props, "used", 0); 2519 } 2520 sizeidx = us_field_index(propname); 2521 if (sizelen > cb->cb_width[sizeidx]) 2522 cb->cb_width[sizeidx] = sizelen; 2523 2524 if (nvlist_add_uint64(props, propname, space) != 0) 2525 nomem(); 2526 2527 return (0); 2528 } 2529 2530 static void 2531 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2532 size_t *width, us_node_t *node) 2533 { 2534 nvlist_t *nvl = node->usn_nvl; 2535 char valstr[ZFS_MAXNAMELEN]; 2536 boolean_t first = B_TRUE; 2537 int cfield = 0; 2538 int field; 2539 uint32_t ustype; 2540 2541 /* Check type */ 2542 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2543 if (!(ustype & types)) 2544 return; 2545 2546 while ((field = fields[cfield]) != USFIELD_LAST) { 2547 nvpair_t *nvp = NULL; 2548 data_type_t type; 2549 uint32_t val32; 2550 uint64_t val64; 2551 char *strval = NULL; 2552 2553 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2554 if (strcmp(nvpair_name(nvp), 2555 us_field_names[field]) == 0) 2556 break; 2557 } 2558 2559 type = nvpair_type(nvp); 2560 switch (type) { 2561 case DATA_TYPE_UINT32: 2562 (void) nvpair_value_uint32(nvp, &val32); 2563 break; 2564 case DATA_TYPE_UINT64: 2565 (void) nvpair_value_uint64(nvp, &val64); 2566 break; 2567 case DATA_TYPE_STRING: 2568 (void) nvpair_value_string(nvp, &strval); 2569 break; 2570 default: 2571 (void) fprintf(stderr, "invalid data type\n"); 2572 } 2573 2574 switch (field) { 2575 case USFIELD_TYPE: 2576 strval = (char *)us_type2str(val32); 2577 break; 2578 case USFIELD_NAME: 2579 if (type == DATA_TYPE_UINT64) { 2580 (void) sprintf(valstr, "%llu", val64); 2581 strval = valstr; 2582 } 2583 break; 2584 case USFIELD_USED: 2585 case USFIELD_QUOTA: 2586 if (type == DATA_TYPE_UINT64) { 2587 if (parsable) { 2588 (void) sprintf(valstr, "%llu", val64); 2589 } else { 2590 zfs_nicenum(val64, valstr, 2591 sizeof (valstr)); 2592 } 2593 if (field == USFIELD_QUOTA && 2594 strcmp(valstr, "0") == 0) 2595 strval = "none"; 2596 else 2597 strval = valstr; 2598 } 2599 break; 2600 } 2601 2602 if (!first) { 2603 if (scripted) 2604 (void) printf("\t"); 2605 else 2606 (void) printf(" "); 2607 } 2608 if (scripted) 2609 (void) printf("%s", strval); 2610 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2611 (void) printf("%-*s", width[field], strval); 2612 else 2613 (void) printf("%*s", width[field], strval); 2614 2615 first = B_FALSE; 2616 cfield++; 2617 } 2618 2619 (void) printf("\n"); 2620 } 2621 2622 static void 2623 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2624 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2625 { 2626 us_node_t *node; 2627 const char *col; 2628 int cfield = 0; 2629 int field; 2630 2631 if (!scripted) { 2632 boolean_t first = B_TRUE; 2633 2634 while ((field = fields[cfield]) != USFIELD_LAST) { 2635 col = gettext(us_field_hdr[field]); 2636 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2637 (void) printf(first ? "%-*s" : " %-*s", 2638 width[field], col); 2639 } else { 2640 (void) printf(first ? "%*s" : " %*s", 2641 width[field], col); 2642 } 2643 first = B_FALSE; 2644 cfield++; 2645 } 2646 (void) printf("\n"); 2647 } 2648 2649 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2650 print_us_node(scripted, parsable, fields, types, width, node); 2651 if (rmnode) 2652 nvlist_free(node->usn_nvl); 2653 } 2654 } 2655 2656 static int 2657 zfs_do_userspace(int argc, char **argv) 2658 { 2659 zfs_handle_t *zhp; 2660 zfs_userquota_prop_t p; 2661 uu_avl_pool_t *avl_pool; 2662 uu_avl_t *avl_tree; 2663 uu_avl_walk_t *walk; 2664 char *delim; 2665 char deffields[] = "type,name,used,quota"; 2666 char *ofield = NULL; 2667 char *tfield = NULL; 2668 int cfield = 0; 2669 int fields[256]; 2670 int i; 2671 boolean_t scripted = B_FALSE; 2672 boolean_t prtnum = B_FALSE; 2673 boolean_t parsable = B_FALSE; 2674 boolean_t sid2posix = B_FALSE; 2675 int ret = 0; 2676 int c; 2677 zfs_sort_column_t *sortcol = NULL; 2678 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2679 us_cbdata_t cb; 2680 us_node_t *node; 2681 us_node_t *rmnode; 2682 uu_list_pool_t *listpool; 2683 uu_list_t *list; 2684 uu_avl_index_t idx = 0; 2685 uu_list_index_t idx2 = 0; 2686 2687 if (argc < 2) 2688 usage(B_FALSE); 2689 2690 if (strcmp(argv[0], "groupspace") == 0) 2691 /* Toggle default group types */ 2692 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2693 2694 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2695 switch (c) { 2696 case 'n': 2697 prtnum = B_TRUE; 2698 break; 2699 case 'H': 2700 scripted = B_TRUE; 2701 break; 2702 case 'p': 2703 parsable = B_TRUE; 2704 break; 2705 case 'o': 2706 ofield = optarg; 2707 break; 2708 case 's': 2709 case 'S': 2710 if (zfs_add_sort_column(&sortcol, optarg, 2711 c == 's' ? B_FALSE : B_TRUE) != 0) { 2712 (void) fprintf(stderr, 2713 gettext("invalid field '%s'\n"), optarg); 2714 usage(B_FALSE); 2715 } 2716 break; 2717 case 't': 2718 tfield = optarg; 2719 break; 2720 case 'i': 2721 sid2posix = B_TRUE; 2722 break; 2723 case ':': 2724 (void) fprintf(stderr, gettext("missing argument for " 2725 "'%c' option\n"), optopt); 2726 usage(B_FALSE); 2727 break; 2728 case '?': 2729 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2730 optopt); 2731 usage(B_FALSE); 2732 } 2733 } 2734 2735 argc -= optind; 2736 argv += optind; 2737 2738 if (argc < 1) { 2739 (void) fprintf(stderr, gettext("missing dataset name\n")); 2740 usage(B_FALSE); 2741 } 2742 if (argc > 1) { 2743 (void) fprintf(stderr, gettext("too many arguments\n")); 2744 usage(B_FALSE); 2745 } 2746 2747 /* Use default output fields if not specified using -o */ 2748 if (ofield == NULL) 2749 ofield = deffields; 2750 do { 2751 if ((delim = strchr(ofield, ',')) != NULL) 2752 *delim = '\0'; 2753 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2754 (void) fprintf(stderr, gettext("invalid type '%s' " 2755 "for -o option\n"), ofield); 2756 return (-1); 2757 } 2758 if (delim != NULL) 2759 ofield = delim + 1; 2760 } while (delim != NULL); 2761 fields[cfield] = USFIELD_LAST; 2762 2763 /* Override output types (-t option) */ 2764 if (tfield != NULL) { 2765 types = 0; 2766 2767 do { 2768 boolean_t found = B_FALSE; 2769 2770 if ((delim = strchr(tfield, ',')) != NULL) 2771 *delim = '\0'; 2772 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2773 i++) { 2774 if (strcmp(tfield, us_type_names[i]) == 0) { 2775 found = B_TRUE; 2776 types |= us_type_bits[i]; 2777 break; 2778 } 2779 } 2780 if (!found) { 2781 (void) fprintf(stderr, gettext("invalid type " 2782 "'%s' for -t option\n"), tfield); 2783 return (-1); 2784 } 2785 if (delim != NULL) 2786 tfield = delim + 1; 2787 } while (delim != NULL); 2788 } 2789 2790 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2791 return (1); 2792 2793 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2794 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2795 nomem(); 2796 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2797 nomem(); 2798 2799 /* Always add default sorting columns */ 2800 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2801 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2802 2803 cb.cb_sortcol = sortcol; 2804 cb.cb_numname = prtnum; 2805 cb.cb_nicenum = !parsable; 2806 cb.cb_avl_pool = avl_pool; 2807 cb.cb_avl = avl_tree; 2808 cb.cb_sid2posix = sid2posix; 2809 2810 for (i = 0; i < USFIELD_LAST; i++) 2811 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2812 2813 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2814 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2815 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2816 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2817 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2818 continue; 2819 cb.cb_prop = p; 2820 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2821 return (ret); 2822 } 2823 2824 /* Sort the list */ 2825 if ((node = uu_avl_first(avl_tree)) == NULL) 2826 return (0); 2827 2828 us_populated = B_TRUE; 2829 2830 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2831 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2832 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2833 uu_list_node_init(node, &node->usn_listnode, listpool); 2834 2835 while (node != NULL) { 2836 rmnode = node; 2837 node = uu_avl_next(avl_tree, node); 2838 uu_avl_remove(avl_tree, rmnode); 2839 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2840 uu_list_insert(list, rmnode, idx2); 2841 } 2842 2843 for (node = uu_list_first(list); node != NULL; 2844 node = uu_list_next(list, node)) { 2845 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2846 2847 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2848 uu_avl_insert(avl_tree, node, idx); 2849 } 2850 2851 uu_list_destroy(list); 2852 uu_list_pool_destroy(listpool); 2853 2854 /* Print and free node nvlist memory */ 2855 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2856 cb.cb_avl); 2857 2858 zfs_free_sort_columns(sortcol); 2859 2860 /* Clean up the AVL tree */ 2861 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2862 nomem(); 2863 2864 while ((node = uu_avl_walk_next(walk)) != NULL) { 2865 uu_avl_remove(cb.cb_avl, node); 2866 free(node); 2867 } 2868 2869 uu_avl_walk_end(walk); 2870 uu_avl_destroy(avl_tree); 2871 uu_avl_pool_destroy(avl_pool); 2872 2873 return (ret); 2874 } 2875 2876 /* 2877 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2878 * [-t type[,...]] [filesystem|volume|snapshot] ... 2879 * 2880 * -H Scripted mode; elide headers and separate columns by tabs. 2881 * -p Display values in parsable (literal) format. 2882 * -r Recurse over all children. 2883 * -d Limit recursion by depth. 2884 * -o Control which fields to display. 2885 * -s Specify sort columns, descending order. 2886 * -S Specify sort columns, ascending order. 2887 * -t Control which object types to display. 2888 * 2889 * When given no arguments, list all filesystems in the system. 2890 * Otherwise, list the specified datasets, optionally recursing down them if 2891 * '-r' is specified. 2892 */ 2893 typedef struct list_cbdata { 2894 boolean_t cb_first; 2895 boolean_t cb_literal; 2896 boolean_t cb_scripted; 2897 zprop_list_t *cb_proplist; 2898 } list_cbdata_t; 2899 2900 /* 2901 * Given a list of columns to display, output appropriate headers for each one. 2902 */ 2903 static void 2904 print_header(list_cbdata_t *cb) 2905 { 2906 zprop_list_t *pl = cb->cb_proplist; 2907 char headerbuf[ZFS_MAXPROPLEN]; 2908 const char *header; 2909 int i; 2910 boolean_t first = B_TRUE; 2911 boolean_t right_justify; 2912 2913 for (; pl != NULL; pl = pl->pl_next) { 2914 if (!first) { 2915 (void) printf(" "); 2916 } else { 2917 first = B_FALSE; 2918 } 2919 2920 right_justify = B_FALSE; 2921 if (pl->pl_prop != ZPROP_INVAL) { 2922 header = zfs_prop_column_name(pl->pl_prop); 2923 right_justify = zfs_prop_align_right(pl->pl_prop); 2924 } else { 2925 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2926 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2927 headerbuf[i] = '\0'; 2928 header = headerbuf; 2929 } 2930 2931 if (pl->pl_next == NULL && !right_justify) 2932 (void) printf("%s", header); 2933 else if (right_justify) 2934 (void) printf("%*s", pl->pl_width, header); 2935 else 2936 (void) printf("%-*s", pl->pl_width, header); 2937 } 2938 2939 (void) printf("\n"); 2940 } 2941 2942 /* 2943 * Given a dataset and a list of fields, print out all the properties according 2944 * to the described layout. 2945 */ 2946 static void 2947 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2948 { 2949 zprop_list_t *pl = cb->cb_proplist; 2950 boolean_t first = B_TRUE; 2951 char property[ZFS_MAXPROPLEN]; 2952 nvlist_t *userprops = zfs_get_user_props(zhp); 2953 nvlist_t *propval; 2954 char *propstr; 2955 boolean_t right_justify; 2956 2957 for (; pl != NULL; pl = pl->pl_next) { 2958 if (!first) { 2959 if (cb->cb_scripted) 2960 (void) printf("\t"); 2961 else 2962 (void) printf(" "); 2963 } else { 2964 first = B_FALSE; 2965 } 2966 2967 if (pl->pl_prop != ZPROP_INVAL) { 2968 if (zfs_prop_get(zhp, pl->pl_prop, property, 2969 sizeof (property), NULL, NULL, 0, 2970 cb->cb_literal) != 0) 2971 propstr = "-"; 2972 else 2973 propstr = property; 2974 right_justify = zfs_prop_align_right(pl->pl_prop); 2975 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2976 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2977 property, sizeof (property), cb->cb_literal) != 0) 2978 propstr = "-"; 2979 else 2980 propstr = property; 2981 right_justify = B_TRUE; 2982 } else if (zfs_prop_written(pl->pl_user_prop)) { 2983 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2984 property, sizeof (property), cb->cb_literal) != 0) 2985 propstr = "-"; 2986 else 2987 propstr = property; 2988 right_justify = B_TRUE; 2989 } else { 2990 if (nvlist_lookup_nvlist(userprops, 2991 pl->pl_user_prop, &propval) != 0) 2992 propstr = "-"; 2993 else 2994 verify(nvlist_lookup_string(propval, 2995 ZPROP_VALUE, &propstr) == 0); 2996 right_justify = B_FALSE; 2997 } 2998 2999 /* 3000 * If this is being called in scripted mode, or if this is the 3001 * last column and it is left-justified, don't include a width 3002 * format specifier. 3003 */ 3004 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3005 (void) printf("%s", propstr); 3006 else if (right_justify) 3007 (void) printf("%*s", pl->pl_width, propstr); 3008 else 3009 (void) printf("%-*s", pl->pl_width, propstr); 3010 } 3011 3012 (void) printf("\n"); 3013 } 3014 3015 /* 3016 * Generic callback function to list a dataset or snapshot. 3017 */ 3018 static int 3019 list_callback(zfs_handle_t *zhp, void *data) 3020 { 3021 list_cbdata_t *cbp = data; 3022 3023 if (cbp->cb_first) { 3024 if (!cbp->cb_scripted) 3025 print_header(cbp); 3026 cbp->cb_first = B_FALSE; 3027 } 3028 3029 print_dataset(zhp, cbp); 3030 3031 return (0); 3032 } 3033 3034 static int 3035 zfs_do_list(int argc, char **argv) 3036 { 3037 int c; 3038 static char default_fields[] = 3039 "name,used,available,referenced,mountpoint"; 3040 int types = ZFS_TYPE_DATASET; 3041 boolean_t types_specified = B_FALSE; 3042 char *fields = NULL; 3043 list_cbdata_t cb = { 0 }; 3044 char *value; 3045 int limit = 0; 3046 int ret = 0; 3047 zfs_sort_column_t *sortcol = NULL; 3048 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3049 3050 /* check options */ 3051 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3052 switch (c) { 3053 case 'o': 3054 fields = optarg; 3055 break; 3056 case 'p': 3057 cb.cb_literal = B_TRUE; 3058 flags |= ZFS_ITER_LITERAL_PROPS; 3059 break; 3060 case 'd': 3061 limit = parse_depth(optarg, &flags); 3062 break; 3063 case 'r': 3064 flags |= ZFS_ITER_RECURSE; 3065 break; 3066 case 'H': 3067 cb.cb_scripted = B_TRUE; 3068 break; 3069 case 's': 3070 if (zfs_add_sort_column(&sortcol, optarg, 3071 B_FALSE) != 0) { 3072 (void) fprintf(stderr, 3073 gettext("invalid property '%s'\n"), optarg); 3074 usage(B_FALSE); 3075 } 3076 break; 3077 case 'S': 3078 if (zfs_add_sort_column(&sortcol, optarg, 3079 B_TRUE) != 0) { 3080 (void) fprintf(stderr, 3081 gettext("invalid property '%s'\n"), optarg); 3082 usage(B_FALSE); 3083 } 3084 break; 3085 case 't': 3086 types = 0; 3087 types_specified = B_TRUE; 3088 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3089 while (*optarg != '\0') { 3090 static char *type_subopts[] = { "filesystem", 3091 "volume", "snapshot", "snap", "bookmark", 3092 "all", NULL }; 3093 3094 switch (getsubopt(&optarg, type_subopts, 3095 &value)) { 3096 case 0: 3097 types |= ZFS_TYPE_FILESYSTEM; 3098 break; 3099 case 1: 3100 types |= ZFS_TYPE_VOLUME; 3101 break; 3102 case 2: 3103 case 3: 3104 types |= ZFS_TYPE_SNAPSHOT; 3105 break; 3106 case 4: 3107 types |= ZFS_TYPE_BOOKMARK; 3108 break; 3109 case 5: 3110 types = ZFS_TYPE_DATASET | 3111 ZFS_TYPE_BOOKMARK; 3112 break; 3113 default: 3114 (void) fprintf(stderr, 3115 gettext("invalid type '%s'\n"), 3116 value); 3117 usage(B_FALSE); 3118 } 3119 } 3120 break; 3121 case ':': 3122 (void) fprintf(stderr, gettext("missing argument for " 3123 "'%c' option\n"), optopt); 3124 usage(B_FALSE); 3125 break; 3126 case '?': 3127 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3128 optopt); 3129 usage(B_FALSE); 3130 } 3131 } 3132 3133 argc -= optind; 3134 argv += optind; 3135 3136 if (fields == NULL) 3137 fields = default_fields; 3138 3139 /* 3140 * If "-o space" and no types were specified, don't display snapshots. 3141 */ 3142 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3143 types &= ~ZFS_TYPE_SNAPSHOT; 3144 3145 /* 3146 * If the user specifies '-o all', the zprop_get_list() doesn't 3147 * normally include the name of the dataset. For 'zfs list', we always 3148 * want this property to be first. 3149 */ 3150 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3151 != 0) 3152 usage(B_FALSE); 3153 3154 cb.cb_first = B_TRUE; 3155 3156 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3157 limit, list_callback, &cb); 3158 3159 zprop_free_list(cb.cb_proplist); 3160 zfs_free_sort_columns(sortcol); 3161 3162 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3163 (void) printf(gettext("no datasets available\n")); 3164 3165 return (ret); 3166 } 3167 3168 /* 3169 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3170 * zfs rename [-f] -p <fs | vol> <fs | vol> 3171 * zfs rename -r <snap> <snap> 3172 * 3173 * Renames the given dataset to another of the same type. 3174 * 3175 * The '-p' flag creates all the non-existing ancestors of the target first. 3176 */ 3177 /* ARGSUSED */ 3178 static int 3179 zfs_do_rename(int argc, char **argv) 3180 { 3181 zfs_handle_t *zhp; 3182 int c; 3183 int ret = 0; 3184 boolean_t recurse = B_FALSE; 3185 boolean_t parents = B_FALSE; 3186 boolean_t force_unmount = B_FALSE; 3187 3188 /* check options */ 3189 while ((c = getopt(argc, argv, "prf")) != -1) { 3190 switch (c) { 3191 case 'p': 3192 parents = B_TRUE; 3193 break; 3194 case 'r': 3195 recurse = B_TRUE; 3196 break; 3197 case 'f': 3198 force_unmount = B_TRUE; 3199 break; 3200 case '?': 3201 default: 3202 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3203 optopt); 3204 usage(B_FALSE); 3205 } 3206 } 3207 3208 argc -= optind; 3209 argv += optind; 3210 3211 /* check number of arguments */ 3212 if (argc < 1) { 3213 (void) fprintf(stderr, gettext("missing source dataset " 3214 "argument\n")); 3215 usage(B_FALSE); 3216 } 3217 if (argc < 2) { 3218 (void) fprintf(stderr, gettext("missing target dataset " 3219 "argument\n")); 3220 usage(B_FALSE); 3221 } 3222 if (argc > 2) { 3223 (void) fprintf(stderr, gettext("too many arguments\n")); 3224 usage(B_FALSE); 3225 } 3226 3227 if (recurse && parents) { 3228 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3229 "exclusive\n")); 3230 usage(B_FALSE); 3231 } 3232 3233 if (recurse && strchr(argv[0], '@') == 0) { 3234 (void) fprintf(stderr, gettext("source dataset for recursive " 3235 "rename must be a snapshot\n")); 3236 usage(B_FALSE); 3237 } 3238 3239 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3240 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3241 return (1); 3242 3243 /* If we were asked and the name looks good, try to create ancestors. */ 3244 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3245 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3246 zfs_close(zhp); 3247 return (1); 3248 } 3249 3250 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3251 3252 zfs_close(zhp); 3253 return (ret); 3254 } 3255 3256 /* 3257 * zfs promote <fs> 3258 * 3259 * Promotes the given clone fs to be the parent 3260 */ 3261 /* ARGSUSED */ 3262 static int 3263 zfs_do_promote(int argc, char **argv) 3264 { 3265 zfs_handle_t *zhp; 3266 int ret = 0; 3267 3268 /* check options */ 3269 if (argc > 1 && argv[1][0] == '-') { 3270 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3271 argv[1][1]); 3272 usage(B_FALSE); 3273 } 3274 3275 /* check number of arguments */ 3276 if (argc < 2) { 3277 (void) fprintf(stderr, gettext("missing clone filesystem" 3278 " argument\n")); 3279 usage(B_FALSE); 3280 } 3281 if (argc > 2) { 3282 (void) fprintf(stderr, gettext("too many arguments\n")); 3283 usage(B_FALSE); 3284 } 3285 3286 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3287 if (zhp == NULL) 3288 return (1); 3289 3290 ret = (zfs_promote(zhp) != 0); 3291 3292 3293 zfs_close(zhp); 3294 return (ret); 3295 } 3296 3297 /* 3298 * zfs rollback [-rRf] <snapshot> 3299 * 3300 * -r Delete any intervening snapshots before doing rollback 3301 * -R Delete any snapshots and their clones 3302 * -f ignored for backwards compatability 3303 * 3304 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3305 * since then and making it the active dataset. If more recent snapshots exist, 3306 * the command will complain unless the '-r' flag is given. 3307 */ 3308 typedef struct rollback_cbdata { 3309 uint64_t cb_create; 3310 boolean_t cb_first; 3311 int cb_doclones; 3312 char *cb_target; 3313 int cb_error; 3314 boolean_t cb_recurse; 3315 } rollback_cbdata_t; 3316 3317 static int 3318 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3319 { 3320 rollback_cbdata_t *cbp = data; 3321 3322 if (cbp->cb_first && cbp->cb_recurse) { 3323 (void) fprintf(stderr, gettext("cannot rollback to " 3324 "'%s': clones of previous snapshots exist\n"), 3325 cbp->cb_target); 3326 (void) fprintf(stderr, gettext("use '-R' to " 3327 "force deletion of the following clones and " 3328 "dependents:\n")); 3329 cbp->cb_first = 0; 3330 cbp->cb_error = 1; 3331 } 3332 3333 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3334 3335 zfs_close(zhp); 3336 return (0); 3337 } 3338 3339 /* 3340 * Report any snapshots more recent than the one specified. Used when '-r' is 3341 * not specified. We reuse this same callback for the snapshot dependents - if 3342 * 'cb_dependent' is set, then this is a dependent and we should report it 3343 * without checking the transaction group. 3344 */ 3345 static int 3346 rollback_check(zfs_handle_t *zhp, void *data) 3347 { 3348 rollback_cbdata_t *cbp = data; 3349 3350 if (cbp->cb_doclones) { 3351 zfs_close(zhp); 3352 return (0); 3353 } 3354 3355 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3356 if (cbp->cb_first && !cbp->cb_recurse) { 3357 (void) fprintf(stderr, gettext("cannot " 3358 "rollback to '%s': more recent snapshots " 3359 "or bookmarks exist\n"), 3360 cbp->cb_target); 3361 (void) fprintf(stderr, gettext("use '-r' to " 3362 "force deletion of the following " 3363 "snapshots and bookmarks:\n")); 3364 cbp->cb_first = 0; 3365 cbp->cb_error = 1; 3366 } 3367 3368 if (cbp->cb_recurse) { 3369 if (zfs_iter_dependents(zhp, B_TRUE, 3370 rollback_check_dependent, cbp) != 0) { 3371 zfs_close(zhp); 3372 return (-1); 3373 } 3374 } else { 3375 (void) fprintf(stderr, "%s\n", 3376 zfs_get_name(zhp)); 3377 } 3378 } 3379 zfs_close(zhp); 3380 return (0); 3381 } 3382 3383 static int 3384 zfs_do_rollback(int argc, char **argv) 3385 { 3386 int ret = 0; 3387 int c; 3388 boolean_t force = B_FALSE; 3389 rollback_cbdata_t cb = { 0 }; 3390 zfs_handle_t *zhp, *snap; 3391 char parentname[ZFS_MAXNAMELEN]; 3392 char *delim; 3393 3394 /* check options */ 3395 while ((c = getopt(argc, argv, "rRf")) != -1) { 3396 switch (c) { 3397 case 'r': 3398 cb.cb_recurse = 1; 3399 break; 3400 case 'R': 3401 cb.cb_recurse = 1; 3402 cb.cb_doclones = 1; 3403 break; 3404 case 'f': 3405 force = B_TRUE; 3406 break; 3407 case '?': 3408 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3409 optopt); 3410 usage(B_FALSE); 3411 } 3412 } 3413 3414 argc -= optind; 3415 argv += optind; 3416 3417 /* check number of arguments */ 3418 if (argc < 1) { 3419 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3420 usage(B_FALSE); 3421 } 3422 if (argc > 1) { 3423 (void) fprintf(stderr, gettext("too many arguments\n")); 3424 usage(B_FALSE); 3425 } 3426 3427 /* open the snapshot */ 3428 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3429 return (1); 3430 3431 /* open the parent dataset */ 3432 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3433 verify((delim = strrchr(parentname, '@')) != NULL); 3434 *delim = '\0'; 3435 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3436 zfs_close(snap); 3437 return (1); 3438 } 3439 3440 /* 3441 * Check for more recent snapshots and/or clones based on the presence 3442 * of '-r' and '-R'. 3443 */ 3444 cb.cb_target = argv[0]; 3445 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3446 cb.cb_first = B_TRUE; 3447 cb.cb_error = 0; 3448 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3449 goto out; 3450 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3451 goto out; 3452 3453 if ((ret = cb.cb_error) != 0) 3454 goto out; 3455 3456 /* 3457 * Rollback parent to the given snapshot. 3458 */ 3459 ret = zfs_rollback(zhp, snap, force); 3460 3461 out: 3462 zfs_close(snap); 3463 zfs_close(zhp); 3464 3465 if (ret == 0) 3466 return (0); 3467 else 3468 return (1); 3469 } 3470 3471 /* 3472 * zfs set property=value ... { fs | snap | vol } ... 3473 * 3474 * Sets the given properties for all datasets specified on the command line. 3475 */ 3476 3477 static int 3478 set_callback(zfs_handle_t *zhp, void *data) 3479 { 3480 nvlist_t *props = data; 3481 3482 if (zfs_prop_set_list(zhp, props) != 0) { 3483 switch (libzfs_errno(g_zfs)) { 3484 case EZFS_MOUNTFAILED: 3485 (void) fprintf(stderr, gettext("property may be set " 3486 "but unable to remount filesystem\n")); 3487 break; 3488 case EZFS_SHARENFSFAILED: 3489 (void) fprintf(stderr, gettext("property may be set " 3490 "but unable to reshare filesystem\n")); 3491 break; 3492 } 3493 return (1); 3494 } 3495 return (0); 3496 } 3497 3498 static int 3499 zfs_do_set(int argc, char **argv) 3500 { 3501 nvlist_t *props = NULL; 3502 int ds_start = -1; /* argv idx of first dataset arg */ 3503 int ret = 0; 3504 3505 /* check for options */ 3506 if (argc > 1 && argv[1][0] == '-') { 3507 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3508 argv[1][1]); 3509 usage(B_FALSE); 3510 } 3511 3512 /* check number of arguments */ 3513 if (argc < 2) { 3514 (void) fprintf(stderr, gettext("missing arguments\n")); 3515 usage(B_FALSE); 3516 } 3517 if (argc < 3) { 3518 if (strchr(argv[1], '=') == NULL) { 3519 (void) fprintf(stderr, gettext("missing property=value " 3520 "argument(s)\n")); 3521 } else { 3522 (void) fprintf(stderr, gettext("missing dataset " 3523 "name(s)\n")); 3524 } 3525 usage(B_FALSE); 3526 } 3527 3528 /* validate argument order: prop=val args followed by dataset args */ 3529 for (int i = 1; i < argc; i++) { 3530 if (strchr(argv[i], '=') != NULL) { 3531 if (ds_start > 0) { 3532 /* out-of-order prop=val argument */ 3533 (void) fprintf(stderr, gettext("invalid " 3534 "argument order\n"), i); 3535 usage(B_FALSE); 3536 } 3537 } else if (ds_start < 0) { 3538 ds_start = i; 3539 } 3540 } 3541 if (ds_start < 0) { 3542 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3543 usage(B_FALSE); 3544 } 3545 3546 /* Populate a list of property settings */ 3547 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3548 nomem(); 3549 for (int i = 1; i < ds_start; i++) { 3550 if ((ret = parseprop(props, argv[i])) != 0) 3551 goto error; 3552 } 3553 3554 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3555 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3556 3557 error: 3558 nvlist_free(props); 3559 return (ret); 3560 } 3561 3562 typedef struct snap_cbdata { 3563 nvlist_t *sd_nvl; 3564 boolean_t sd_recursive; 3565 const char *sd_snapname; 3566 } snap_cbdata_t; 3567 3568 static int 3569 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3570 { 3571 snap_cbdata_t *sd = arg; 3572 char *name; 3573 int rv = 0; 3574 int error; 3575 3576 if (sd->sd_recursive && 3577 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3578 zfs_close(zhp); 3579 return (0); 3580 } 3581 3582 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3583 if (error == -1) 3584 nomem(); 3585 fnvlist_add_boolean(sd->sd_nvl, name); 3586 free(name); 3587 3588 if (sd->sd_recursive) 3589 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3590 zfs_close(zhp); 3591 return (rv); 3592 } 3593 3594 /* 3595 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3596 * 3597 * Creates a snapshot with the given name. While functionally equivalent to 3598 * 'zfs create', it is a separate command to differentiate intent. 3599 */ 3600 static int 3601 zfs_do_snapshot(int argc, char **argv) 3602 { 3603 int ret = 0; 3604 char c; 3605 nvlist_t *props; 3606 snap_cbdata_t sd = { 0 }; 3607 boolean_t multiple_snaps = B_FALSE; 3608 3609 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3610 nomem(); 3611 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3612 nomem(); 3613 3614 /* check options */ 3615 while ((c = getopt(argc, argv, "ro:")) != -1) { 3616 switch (c) { 3617 case 'o': 3618 if (parseprop(props, optarg) != 0) 3619 return (1); 3620 break; 3621 case 'r': 3622 sd.sd_recursive = B_TRUE; 3623 multiple_snaps = B_TRUE; 3624 break; 3625 case '?': 3626 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3627 optopt); 3628 goto usage; 3629 } 3630 } 3631 3632 argc -= optind; 3633 argv += optind; 3634 3635 /* check number of arguments */ 3636 if (argc < 1) { 3637 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3638 goto usage; 3639 } 3640 3641 if (argc > 1) 3642 multiple_snaps = B_TRUE; 3643 for (; argc > 0; argc--, argv++) { 3644 char *atp; 3645 zfs_handle_t *zhp; 3646 3647 atp = strchr(argv[0], '@'); 3648 if (atp == NULL) 3649 goto usage; 3650 *atp = '\0'; 3651 sd.sd_snapname = atp + 1; 3652 zhp = zfs_open(g_zfs, argv[0], 3653 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3654 if (zhp == NULL) 3655 goto usage; 3656 if (zfs_snapshot_cb(zhp, &sd) != 0) 3657 goto usage; 3658 } 3659 3660 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3661 nvlist_free(sd.sd_nvl); 3662 nvlist_free(props); 3663 if (ret != 0 && multiple_snaps) 3664 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3665 return (ret != 0); 3666 3667 usage: 3668 nvlist_free(sd.sd_nvl); 3669 nvlist_free(props); 3670 usage(B_FALSE); 3671 return (-1); 3672 } 3673 3674 /* 3675 * Send a backup stream to stdout. 3676 */ 3677 static int 3678 zfs_do_send(int argc, char **argv) 3679 { 3680 char *fromname = NULL; 3681 char *toname = NULL; 3682 char *resume_token = NULL; 3683 char *cp; 3684 zfs_handle_t *zhp; 3685 sendflags_t flags = { 0 }; 3686 int c, err; 3687 nvlist_t *dbgnv = NULL; 3688 boolean_t extraverbose = B_FALSE; 3689 3690 /* check options */ 3691 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3692 switch (c) { 3693 case 'i': 3694 if (fromname) 3695 usage(B_FALSE); 3696 fromname = optarg; 3697 break; 3698 case 'I': 3699 if (fromname) 3700 usage(B_FALSE); 3701 fromname = optarg; 3702 flags.doall = B_TRUE; 3703 break; 3704 case 'R': 3705 flags.replicate = B_TRUE; 3706 break; 3707 case 'p': 3708 flags.props = B_TRUE; 3709 break; 3710 case 'P': 3711 flags.parsable = B_TRUE; 3712 flags.verbose = B_TRUE; 3713 break; 3714 case 'v': 3715 if (flags.verbose) 3716 extraverbose = B_TRUE; 3717 flags.verbose = B_TRUE; 3718 flags.progress = B_TRUE; 3719 break; 3720 case 'D': 3721 flags.dedup = B_TRUE; 3722 break; 3723 case 'n': 3724 flags.dryrun = B_TRUE; 3725 break; 3726 case 'L': 3727 flags.largeblock = B_TRUE; 3728 break; 3729 case 'e': 3730 flags.embed_data = B_TRUE; 3731 break; 3732 case 't': 3733 resume_token = optarg; 3734 break; 3735 case ':': 3736 (void) fprintf(stderr, gettext("missing argument for " 3737 "'%c' option\n"), optopt); 3738 usage(B_FALSE); 3739 break; 3740 case '?': 3741 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3742 optopt); 3743 usage(B_FALSE); 3744 } 3745 } 3746 3747 argc -= optind; 3748 argv += optind; 3749 3750 if (resume_token != NULL) { 3751 if (fromname != NULL || flags.replicate || flags.props || 3752 flags.dedup) { 3753 (void) fprintf(stderr, 3754 gettext("invalid flags combined with -t\n")); 3755 usage(B_FALSE); 3756 } 3757 if (argc != 0) { 3758 (void) fprintf(stderr, gettext("no additional " 3759 "arguments are permitted with -t\n")); 3760 usage(B_FALSE); 3761 } 3762 } else { 3763 if (argc < 1) { 3764 (void) fprintf(stderr, 3765 gettext("missing snapshot argument\n")); 3766 usage(B_FALSE); 3767 } 3768 if (argc > 1) { 3769 (void) fprintf(stderr, gettext("too many arguments\n")); 3770 usage(B_FALSE); 3771 } 3772 } 3773 3774 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3775 (void) fprintf(stderr, 3776 gettext("Error: Stream can not be written to a terminal.\n" 3777 "You must redirect standard output.\n")); 3778 return (1); 3779 } 3780 3781 if (resume_token != NULL) { 3782 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3783 resume_token)); 3784 } 3785 3786 /* 3787 * Special case sending a filesystem, or from a bookmark. 3788 */ 3789 if (strchr(argv[0], '@') == NULL || 3790 (fromname && strchr(fromname, '#') != NULL)) { 3791 char frombuf[ZFS_MAXNAMELEN]; 3792 enum lzc_send_flags lzc_flags = 0; 3793 3794 if (flags.replicate || flags.doall || flags.props || 3795 flags.dedup || flags.dryrun || flags.verbose || 3796 flags.progress) { 3797 (void) fprintf(stderr, 3798 gettext("Error: " 3799 "Unsupported flag with filesystem or bookmark.\n")); 3800 return (1); 3801 } 3802 3803 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3804 if (zhp == NULL) 3805 return (1); 3806 3807 if (flags.largeblock) 3808 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3809 if (flags.embed_data) 3810 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3811 3812 if (fromname != NULL && 3813 (fromname[0] == '#' || fromname[0] == '@')) { 3814 /* 3815 * Incremental source name begins with # or @. 3816 * Default to same fs as target. 3817 */ 3818 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3819 cp = strchr(frombuf, '@'); 3820 if (cp != NULL) 3821 *cp = '\0'; 3822 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3823 fromname = frombuf; 3824 } 3825 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3826 zfs_close(zhp); 3827 return (err != 0); 3828 } 3829 3830 cp = strchr(argv[0], '@'); 3831 *cp = '\0'; 3832 toname = cp + 1; 3833 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3834 if (zhp == NULL) 3835 return (1); 3836 3837 /* 3838 * If they specified the full path to the snapshot, chop off 3839 * everything except the short name of the snapshot, but special 3840 * case if they specify the origin. 3841 */ 3842 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3843 char origin[ZFS_MAXNAMELEN]; 3844 zprop_source_t src; 3845 3846 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3847 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3848 3849 if (strcmp(origin, fromname) == 0) { 3850 fromname = NULL; 3851 flags.fromorigin = B_TRUE; 3852 } else { 3853 *cp = '\0'; 3854 if (cp != fromname && strcmp(argv[0], fromname)) { 3855 (void) fprintf(stderr, 3856 gettext("incremental source must be " 3857 "in same filesystem\n")); 3858 usage(B_FALSE); 3859 } 3860 fromname = cp + 1; 3861 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3862 (void) fprintf(stderr, 3863 gettext("invalid incremental source\n")); 3864 usage(B_FALSE); 3865 } 3866 } 3867 } 3868 3869 if (flags.replicate && fromname == NULL) 3870 flags.doall = B_TRUE; 3871 3872 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3873 extraverbose ? &dbgnv : NULL); 3874 3875 if (extraverbose && dbgnv != NULL) { 3876 /* 3877 * dump_nvlist prints to stdout, but that's been 3878 * redirected to a file. Make it print to stderr 3879 * instead. 3880 */ 3881 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3882 dump_nvlist(dbgnv, 0); 3883 nvlist_free(dbgnv); 3884 } 3885 zfs_close(zhp); 3886 3887 return (err != 0); 3888 } 3889 3890 /* 3891 * Restore a backup stream from stdin. 3892 */ 3893 static int 3894 zfs_do_receive(int argc, char **argv) 3895 { 3896 int c, err; 3897 recvflags_t flags = { 0 }; 3898 boolean_t abort_resumable = B_FALSE; 3899 3900 nvlist_t *props; 3901 nvpair_t *nvp = NULL; 3902 3903 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3904 nomem(); 3905 3906 /* check options */ 3907 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3908 switch (c) { 3909 case 'o': 3910 if (parseprop(props, optarg) != 0) 3911 return (1); 3912 break; 3913 case 'd': 3914 flags.isprefix = B_TRUE; 3915 break; 3916 case 'e': 3917 flags.isprefix = B_TRUE; 3918 flags.istail = B_TRUE; 3919 break; 3920 case 'n': 3921 flags.dryrun = B_TRUE; 3922 break; 3923 case 'u': 3924 flags.nomount = B_TRUE; 3925 break; 3926 case 'v': 3927 flags.verbose = B_TRUE; 3928 break; 3929 case 's': 3930 flags.resumable = B_TRUE; 3931 break; 3932 case 'F': 3933 flags.force = B_TRUE; 3934 break; 3935 case 'A': 3936 abort_resumable = B_TRUE; 3937 break; 3938 case ':': 3939 (void) fprintf(stderr, gettext("missing argument for " 3940 "'%c' option\n"), optopt); 3941 usage(B_FALSE); 3942 break; 3943 case '?': 3944 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3945 optopt); 3946 usage(B_FALSE); 3947 } 3948 } 3949 3950 argc -= optind; 3951 argv += optind; 3952 3953 /* check number of arguments */ 3954 if (argc < 1) { 3955 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3956 usage(B_FALSE); 3957 } 3958 if (argc > 1) { 3959 (void) fprintf(stderr, gettext("too many arguments\n")); 3960 usage(B_FALSE); 3961 } 3962 3963 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3964 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3965 (void) fprintf(stderr, gettext("invalid option")); 3966 usage(B_FALSE); 3967 } 3968 } 3969 3970 if (abort_resumable) { 3971 if (flags.isprefix || flags.istail || flags.dryrun || 3972 flags.resumable || flags.nomount) { 3973 (void) fprintf(stderr, gettext("invalid option")); 3974 usage(B_FALSE); 3975 } 3976 3977 char namebuf[ZFS_MAXNAMELEN]; 3978 (void) snprintf(namebuf, sizeof (namebuf), 3979 "%s/%%recv", argv[0]); 3980 3981 if (zfs_dataset_exists(g_zfs, namebuf, 3982 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 3983 zfs_handle_t *zhp = zfs_open(g_zfs, 3984 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3985 if (zhp == NULL) 3986 return (1); 3987 err = zfs_destroy(zhp, B_FALSE); 3988 } else { 3989 zfs_handle_t *zhp = zfs_open(g_zfs, 3990 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3991 if (zhp == NULL) 3992 usage(B_FALSE); 3993 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 3994 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 3995 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 3996 (void) fprintf(stderr, 3997 gettext("'%s' does not have any " 3998 "resumable receive state to abort\n"), 3999 argv[0]); 4000 return (1); 4001 } 4002 err = zfs_destroy(zhp, B_FALSE); 4003 } 4004 4005 return (err != 0); 4006 } 4007 4008 if (isatty(STDIN_FILENO)) { 4009 (void) fprintf(stderr, 4010 gettext("Error: Backup stream can not be read " 4011 "from a terminal.\n" 4012 "You must redirect standard input.\n")); 4013 return (1); 4014 } 4015 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4016 4017 return (err != 0); 4018 } 4019 4020 /* 4021 * allow/unallow stuff 4022 */ 4023 /* copied from zfs/sys/dsl_deleg.h */ 4024 #define ZFS_DELEG_PERM_CREATE "create" 4025 #define ZFS_DELEG_PERM_DESTROY "destroy" 4026 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4027 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4028 #define ZFS_DELEG_PERM_CLONE "clone" 4029 #define ZFS_DELEG_PERM_PROMOTE "promote" 4030 #define ZFS_DELEG_PERM_RENAME "rename" 4031 #define ZFS_DELEG_PERM_MOUNT "mount" 4032 #define ZFS_DELEG_PERM_SHARE "share" 4033 #define ZFS_DELEG_PERM_SEND "send" 4034 #define ZFS_DELEG_PERM_RECEIVE "receive" 4035 #define ZFS_DELEG_PERM_ALLOW "allow" 4036 #define ZFS_DELEG_PERM_USERPROP "userprop" 4037 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4038 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4039 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4040 #define ZFS_DELEG_PERM_USERUSED "userused" 4041 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4042 #define ZFS_DELEG_PERM_HOLD "hold" 4043 #define ZFS_DELEG_PERM_RELEASE "release" 4044 #define ZFS_DELEG_PERM_DIFF "diff" 4045 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4046 4047 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4048 4049 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4050 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4051 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4052 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4053 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4054 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4055 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4056 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4057 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4058 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4059 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4060 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4061 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4062 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4063 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4064 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4065 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4066 4067 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4068 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4069 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4070 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4071 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4072 { NULL, ZFS_DELEG_NOTE_NONE } 4073 }; 4074 4075 /* permission structure */ 4076 typedef struct deleg_perm { 4077 zfs_deleg_who_type_t dp_who_type; 4078 const char *dp_name; 4079 boolean_t dp_local; 4080 boolean_t dp_descend; 4081 } deleg_perm_t; 4082 4083 /* */ 4084 typedef struct deleg_perm_node { 4085 deleg_perm_t dpn_perm; 4086 4087 uu_avl_node_t dpn_avl_node; 4088 } deleg_perm_node_t; 4089 4090 typedef struct fs_perm fs_perm_t; 4091 4092 /* permissions set */ 4093 typedef struct who_perm { 4094 zfs_deleg_who_type_t who_type; 4095 const char *who_name; /* id */ 4096 char who_ug_name[256]; /* user/group name */ 4097 fs_perm_t *who_fsperm; /* uplink */ 4098 4099 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4100 } who_perm_t; 4101 4102 /* */ 4103 typedef struct who_perm_node { 4104 who_perm_t who_perm; 4105 uu_avl_node_t who_avl_node; 4106 } who_perm_node_t; 4107 4108 typedef struct fs_perm_set fs_perm_set_t; 4109 /* fs permissions */ 4110 struct fs_perm { 4111 const char *fsp_name; 4112 4113 uu_avl_t *fsp_sc_avl; /* sets,create */ 4114 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4115 4116 fs_perm_set_t *fsp_set; /* uplink */ 4117 }; 4118 4119 /* */ 4120 typedef struct fs_perm_node { 4121 fs_perm_t fspn_fsperm; 4122 uu_avl_t *fspn_avl; 4123 4124 uu_list_node_t fspn_list_node; 4125 } fs_perm_node_t; 4126 4127 /* top level structure */ 4128 struct fs_perm_set { 4129 uu_list_pool_t *fsps_list_pool; 4130 uu_list_t *fsps_list; /* list of fs_perms */ 4131 4132 uu_avl_pool_t *fsps_named_set_avl_pool; 4133 uu_avl_pool_t *fsps_who_perm_avl_pool; 4134 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4135 }; 4136 4137 static inline const char * 4138 deleg_perm_type(zfs_deleg_note_t note) 4139 { 4140 /* subcommands */ 4141 switch (note) { 4142 /* SUBCOMMANDS */ 4143 /* OTHER */ 4144 case ZFS_DELEG_NOTE_GROUPQUOTA: 4145 case ZFS_DELEG_NOTE_GROUPUSED: 4146 case ZFS_DELEG_NOTE_USERPROP: 4147 case ZFS_DELEG_NOTE_USERQUOTA: 4148 case ZFS_DELEG_NOTE_USERUSED: 4149 /* other */ 4150 return (gettext("other")); 4151 default: 4152 return (gettext("subcommand")); 4153 } 4154 } 4155 4156 static int inline 4157 who_type2weight(zfs_deleg_who_type_t who_type) 4158 { 4159 int res; 4160 switch (who_type) { 4161 case ZFS_DELEG_NAMED_SET_SETS: 4162 case ZFS_DELEG_NAMED_SET: 4163 res = 0; 4164 break; 4165 case ZFS_DELEG_CREATE_SETS: 4166 case ZFS_DELEG_CREATE: 4167 res = 1; 4168 break; 4169 case ZFS_DELEG_USER_SETS: 4170 case ZFS_DELEG_USER: 4171 res = 2; 4172 break; 4173 case ZFS_DELEG_GROUP_SETS: 4174 case ZFS_DELEG_GROUP: 4175 res = 3; 4176 break; 4177 case ZFS_DELEG_EVERYONE_SETS: 4178 case ZFS_DELEG_EVERYONE: 4179 res = 4; 4180 break; 4181 default: 4182 res = -1; 4183 } 4184 4185 return (res); 4186 } 4187 4188 /* ARGSUSED */ 4189 static int 4190 who_perm_compare(const void *larg, const void *rarg, void *unused) 4191 { 4192 const who_perm_node_t *l = larg; 4193 const who_perm_node_t *r = rarg; 4194 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4195 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4196 int lweight = who_type2weight(ltype); 4197 int rweight = who_type2weight(rtype); 4198 int res = lweight - rweight; 4199 if (res == 0) 4200 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4201 ZFS_MAX_DELEG_NAME-1); 4202 4203 if (res == 0) 4204 return (0); 4205 if (res > 0) 4206 return (1); 4207 else 4208 return (-1); 4209 } 4210 4211 /* ARGSUSED */ 4212 static int 4213 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4214 { 4215 const deleg_perm_node_t *l = larg; 4216 const deleg_perm_node_t *r = rarg; 4217 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4218 ZFS_MAX_DELEG_NAME-1); 4219 4220 if (res == 0) 4221 return (0); 4222 4223 if (res > 0) 4224 return (1); 4225 else 4226 return (-1); 4227 } 4228 4229 static inline void 4230 fs_perm_set_init(fs_perm_set_t *fspset) 4231 { 4232 bzero(fspset, sizeof (fs_perm_set_t)); 4233 4234 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4235 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4236 NULL, UU_DEFAULT)) == NULL) 4237 nomem(); 4238 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4239 UU_DEFAULT)) == NULL) 4240 nomem(); 4241 4242 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4243 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4244 who_perm_node_t, who_avl_node), who_perm_compare, 4245 UU_DEFAULT)) == NULL) 4246 nomem(); 4247 4248 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4249 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4250 who_perm_node_t, who_avl_node), who_perm_compare, 4251 UU_DEFAULT)) == NULL) 4252 nomem(); 4253 4254 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4255 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4256 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4257 == NULL) 4258 nomem(); 4259 } 4260 4261 static inline void fs_perm_fini(fs_perm_t *); 4262 static inline void who_perm_fini(who_perm_t *); 4263 4264 static inline void 4265 fs_perm_set_fini(fs_perm_set_t *fspset) 4266 { 4267 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4268 4269 while (node != NULL) { 4270 fs_perm_node_t *next_node = 4271 uu_list_next(fspset->fsps_list, node); 4272 fs_perm_t *fsperm = &node->fspn_fsperm; 4273 fs_perm_fini(fsperm); 4274 uu_list_remove(fspset->fsps_list, node); 4275 free(node); 4276 node = next_node; 4277 } 4278 4279 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4280 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4281 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4282 } 4283 4284 static inline void 4285 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4286 const char *name) 4287 { 4288 deleg_perm->dp_who_type = type; 4289 deleg_perm->dp_name = name; 4290 } 4291 4292 static inline void 4293 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4294 zfs_deleg_who_type_t type, const char *name) 4295 { 4296 uu_avl_pool_t *pool; 4297 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4298 4299 bzero(who_perm, sizeof (who_perm_t)); 4300 4301 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4302 UU_DEFAULT)) == NULL) 4303 nomem(); 4304 4305 who_perm->who_type = type; 4306 who_perm->who_name = name; 4307 who_perm->who_fsperm = fsperm; 4308 } 4309 4310 static inline void 4311 who_perm_fini(who_perm_t *who_perm) 4312 { 4313 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4314 4315 while (node != NULL) { 4316 deleg_perm_node_t *next_node = 4317 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4318 4319 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4320 free(node); 4321 node = next_node; 4322 } 4323 4324 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4325 } 4326 4327 static inline void 4328 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4329 { 4330 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4331 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4332 4333 bzero(fsperm, sizeof (fs_perm_t)); 4334 4335 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4336 == NULL) 4337 nomem(); 4338 4339 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4340 == NULL) 4341 nomem(); 4342 4343 fsperm->fsp_set = fspset; 4344 fsperm->fsp_name = fsname; 4345 } 4346 4347 static inline void 4348 fs_perm_fini(fs_perm_t *fsperm) 4349 { 4350 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4351 while (node != NULL) { 4352 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4353 node); 4354 who_perm_t *who_perm = &node->who_perm; 4355 who_perm_fini(who_perm); 4356 uu_avl_remove(fsperm->fsp_sc_avl, node); 4357 free(node); 4358 node = next_node; 4359 } 4360 4361 node = uu_avl_first(fsperm->fsp_uge_avl); 4362 while (node != NULL) { 4363 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4364 node); 4365 who_perm_t *who_perm = &node->who_perm; 4366 who_perm_fini(who_perm); 4367 uu_avl_remove(fsperm->fsp_uge_avl, node); 4368 free(node); 4369 node = next_node; 4370 } 4371 4372 uu_avl_destroy(fsperm->fsp_sc_avl); 4373 uu_avl_destroy(fsperm->fsp_uge_avl); 4374 } 4375 4376 static void inline 4377 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4378 zfs_deleg_who_type_t who_type, const char *name, char locality) 4379 { 4380 uu_avl_index_t idx = 0; 4381 4382 deleg_perm_node_t *found_node = NULL; 4383 deleg_perm_t *deleg_perm = &node->dpn_perm; 4384 4385 deleg_perm_init(deleg_perm, who_type, name); 4386 4387 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4388 == NULL) 4389 uu_avl_insert(avl, node, idx); 4390 else { 4391 node = found_node; 4392 deleg_perm = &node->dpn_perm; 4393 } 4394 4395 4396 switch (locality) { 4397 case ZFS_DELEG_LOCAL: 4398 deleg_perm->dp_local = B_TRUE; 4399 break; 4400 case ZFS_DELEG_DESCENDENT: 4401 deleg_perm->dp_descend = B_TRUE; 4402 break; 4403 case ZFS_DELEG_NA: 4404 break; 4405 default: 4406 assert(B_FALSE); /* invalid locality */ 4407 } 4408 } 4409 4410 static inline int 4411 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4412 { 4413 nvpair_t *nvp = NULL; 4414 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4415 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4416 zfs_deleg_who_type_t who_type = who_perm->who_type; 4417 4418 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4419 const char *name = nvpair_name(nvp); 4420 data_type_t type = nvpair_type(nvp); 4421 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4422 deleg_perm_node_t *node = 4423 safe_malloc(sizeof (deleg_perm_node_t)); 4424 4425 assert(type == DATA_TYPE_BOOLEAN); 4426 4427 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4428 set_deleg_perm_node(avl, node, who_type, name, locality); 4429 } 4430 4431 return (0); 4432 } 4433 4434 static inline int 4435 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4436 { 4437 nvpair_t *nvp = NULL; 4438 fs_perm_set_t *fspset = fsperm->fsp_set; 4439 4440 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4441 nvlist_t *nvl2 = NULL; 4442 const char *name = nvpair_name(nvp); 4443 uu_avl_t *avl = NULL; 4444 uu_avl_pool_t *avl_pool; 4445 zfs_deleg_who_type_t perm_type = name[0]; 4446 char perm_locality = name[1]; 4447 const char *perm_name = name + 3; 4448 boolean_t is_set = B_TRUE; 4449 who_perm_t *who_perm = NULL; 4450 4451 assert('$' == name[2]); 4452 4453 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4454 return (-1); 4455 4456 switch (perm_type) { 4457 case ZFS_DELEG_CREATE: 4458 case ZFS_DELEG_CREATE_SETS: 4459 case ZFS_DELEG_NAMED_SET: 4460 case ZFS_DELEG_NAMED_SET_SETS: 4461 avl_pool = fspset->fsps_named_set_avl_pool; 4462 avl = fsperm->fsp_sc_avl; 4463 break; 4464 case ZFS_DELEG_USER: 4465 case ZFS_DELEG_USER_SETS: 4466 case ZFS_DELEG_GROUP: 4467 case ZFS_DELEG_GROUP_SETS: 4468 case ZFS_DELEG_EVERYONE: 4469 case ZFS_DELEG_EVERYONE_SETS: 4470 avl_pool = fspset->fsps_who_perm_avl_pool; 4471 avl = fsperm->fsp_uge_avl; 4472 break; 4473 } 4474 4475 if (is_set) { 4476 who_perm_node_t *found_node = NULL; 4477 who_perm_node_t *node = safe_malloc( 4478 sizeof (who_perm_node_t)); 4479 who_perm = &node->who_perm; 4480 uu_avl_index_t idx = 0; 4481 4482 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4483 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4484 4485 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4486 == NULL) { 4487 if (avl == fsperm->fsp_uge_avl) { 4488 uid_t rid = 0; 4489 struct passwd *p = NULL; 4490 struct group *g = NULL; 4491 const char *nice_name = NULL; 4492 4493 switch (perm_type) { 4494 case ZFS_DELEG_USER_SETS: 4495 case ZFS_DELEG_USER: 4496 rid = atoi(perm_name); 4497 p = getpwuid(rid); 4498 if (p) 4499 nice_name = p->pw_name; 4500 break; 4501 case ZFS_DELEG_GROUP_SETS: 4502 case ZFS_DELEG_GROUP: 4503 rid = atoi(perm_name); 4504 g = getgrgid(rid); 4505 if (g) 4506 nice_name = g->gr_name; 4507 break; 4508 } 4509 4510 if (nice_name != NULL) 4511 (void) strlcpy( 4512 node->who_perm.who_ug_name, 4513 nice_name, 256); 4514 } 4515 4516 uu_avl_insert(avl, node, idx); 4517 } else { 4518 node = found_node; 4519 who_perm = &node->who_perm; 4520 } 4521 } 4522 4523 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4524 } 4525 4526 return (0); 4527 } 4528 4529 static inline int 4530 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4531 { 4532 nvpair_t *nvp = NULL; 4533 uu_avl_index_t idx = 0; 4534 4535 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4536 nvlist_t *nvl2 = NULL; 4537 const char *fsname = nvpair_name(nvp); 4538 data_type_t type = nvpair_type(nvp); 4539 fs_perm_t *fsperm = NULL; 4540 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4541 if (node == NULL) 4542 nomem(); 4543 4544 fsperm = &node->fspn_fsperm; 4545 4546 assert(DATA_TYPE_NVLIST == type); 4547 4548 uu_list_node_init(node, &node->fspn_list_node, 4549 fspset->fsps_list_pool); 4550 4551 idx = uu_list_numnodes(fspset->fsps_list); 4552 fs_perm_init(fsperm, fspset, fsname); 4553 4554 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4555 return (-1); 4556 4557 (void) parse_fs_perm(fsperm, nvl2); 4558 4559 uu_list_insert(fspset->fsps_list, node, idx); 4560 } 4561 4562 return (0); 4563 } 4564 4565 static inline const char * 4566 deleg_perm_comment(zfs_deleg_note_t note) 4567 { 4568 const char *str = ""; 4569 4570 /* subcommands */ 4571 switch (note) { 4572 /* SUBCOMMANDS */ 4573 case ZFS_DELEG_NOTE_ALLOW: 4574 str = gettext("Must also have the permission that is being" 4575 "\n\t\t\t\tallowed"); 4576 break; 4577 case ZFS_DELEG_NOTE_CLONE: 4578 str = gettext("Must also have the 'create' ability and 'mount'" 4579 "\n\t\t\t\tability in the origin file system"); 4580 break; 4581 case ZFS_DELEG_NOTE_CREATE: 4582 str = gettext("Must also have the 'mount' ability"); 4583 break; 4584 case ZFS_DELEG_NOTE_DESTROY: 4585 str = gettext("Must also have the 'mount' ability"); 4586 break; 4587 case ZFS_DELEG_NOTE_DIFF: 4588 str = gettext("Allows lookup of paths within a dataset;" 4589 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4590 "\n\t\t\t\tin order to use zfs diff"); 4591 break; 4592 case ZFS_DELEG_NOTE_HOLD: 4593 str = gettext("Allows adding a user hold to a snapshot"); 4594 break; 4595 case ZFS_DELEG_NOTE_MOUNT: 4596 str = gettext("Allows mount/umount of ZFS datasets"); 4597 break; 4598 case ZFS_DELEG_NOTE_PROMOTE: 4599 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4600 " 'promote' ability in the origin file system"); 4601 break; 4602 case ZFS_DELEG_NOTE_RECEIVE: 4603 str = gettext("Must also have the 'mount' and 'create'" 4604 " ability"); 4605 break; 4606 case ZFS_DELEG_NOTE_RELEASE: 4607 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4608 "might destroy the snapshot"); 4609 break; 4610 case ZFS_DELEG_NOTE_RENAME: 4611 str = gettext("Must also have the 'mount' and 'create'" 4612 "\n\t\t\t\tability in the new parent"); 4613 break; 4614 case ZFS_DELEG_NOTE_ROLLBACK: 4615 str = gettext(""); 4616 break; 4617 case ZFS_DELEG_NOTE_SEND: 4618 str = gettext(""); 4619 break; 4620 case ZFS_DELEG_NOTE_SHARE: 4621 str = gettext("Allows sharing file systems over NFS or SMB" 4622 "\n\t\t\t\tprotocols"); 4623 break; 4624 case ZFS_DELEG_NOTE_SNAPSHOT: 4625 str = gettext(""); 4626 break; 4627 /* 4628 * case ZFS_DELEG_NOTE_VSCAN: 4629 * str = gettext(""); 4630 * break; 4631 */ 4632 /* OTHER */ 4633 case ZFS_DELEG_NOTE_GROUPQUOTA: 4634 str = gettext("Allows accessing any groupquota@... property"); 4635 break; 4636 case ZFS_DELEG_NOTE_GROUPUSED: 4637 str = gettext("Allows reading any groupused@... property"); 4638 break; 4639 case ZFS_DELEG_NOTE_USERPROP: 4640 str = gettext("Allows changing any user property"); 4641 break; 4642 case ZFS_DELEG_NOTE_USERQUOTA: 4643 str = gettext("Allows accessing any userquota@... property"); 4644 break; 4645 case ZFS_DELEG_NOTE_USERUSED: 4646 str = gettext("Allows reading any userused@... property"); 4647 break; 4648 /* other */ 4649 default: 4650 str = ""; 4651 } 4652 4653 return (str); 4654 } 4655 4656 struct allow_opts { 4657 boolean_t local; 4658 boolean_t descend; 4659 boolean_t user; 4660 boolean_t group; 4661 boolean_t everyone; 4662 boolean_t create; 4663 boolean_t set; 4664 boolean_t recursive; /* unallow only */ 4665 boolean_t prt_usage; 4666 4667 boolean_t prt_perms; 4668 char *who; 4669 char *perms; 4670 const char *dataset; 4671 }; 4672 4673 static inline int 4674 prop_cmp(const void *a, const void *b) 4675 { 4676 const char *str1 = *(const char **)a; 4677 const char *str2 = *(const char **)b; 4678 return (strcmp(str1, str2)); 4679 } 4680 4681 static void 4682 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4683 { 4684 const char *opt_desc[] = { 4685 "-h", gettext("show this help message and exit"), 4686 "-l", gettext("set permission locally"), 4687 "-d", gettext("set permission for descents"), 4688 "-u", gettext("set permission for user"), 4689 "-g", gettext("set permission for group"), 4690 "-e", gettext("set permission for everyone"), 4691 "-c", gettext("set create time permission"), 4692 "-s", gettext("define permission set"), 4693 /* unallow only */ 4694 "-r", gettext("remove permissions recursively"), 4695 }; 4696 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4697 size_t allow_size = unallow_size - 2; 4698 const char *props[ZFS_NUM_PROPS]; 4699 int i; 4700 size_t count = 0; 4701 FILE *fp = requested ? stdout : stderr; 4702 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4703 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4704 4705 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4706 HELP_ALLOW)); 4707 (void) fprintf(fp, gettext("Options:\n")); 4708 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4709 const char *opt = opt_desc[i++]; 4710 const char *optdsc = opt_desc[i]; 4711 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4712 } 4713 4714 (void) fprintf(fp, gettext("\nThe following permissions are " 4715 "supported:\n\n")); 4716 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4717 gettext("NOTES")); 4718 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4719 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4720 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4721 const char *perm_type = deleg_perm_type(perm_note); 4722 const char *perm_comment = deleg_perm_comment(perm_note); 4723 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4724 } 4725 4726 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4727 zprop_desc_t *pd = &pdtbl[i]; 4728 if (pd->pd_visible != B_TRUE) 4729 continue; 4730 4731 if (pd->pd_attr == PROP_READONLY) 4732 continue; 4733 4734 props[count++] = pd->pd_name; 4735 } 4736 props[count] = NULL; 4737 4738 qsort(props, count, sizeof (char *), prop_cmp); 4739 4740 for (i = 0; i < count; i++) 4741 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4742 4743 if (msg != NULL) 4744 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4745 4746 exit(requested ? 0 : 2); 4747 } 4748 4749 static inline const char * 4750 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4751 char **permsp) 4752 { 4753 if (un && argc == expected_argc - 1) 4754 *permsp = NULL; 4755 else if (argc == expected_argc) 4756 *permsp = argv[argc - 2]; 4757 else 4758 allow_usage(un, B_FALSE, 4759 gettext("wrong number of parameters\n")); 4760 4761 return (argv[argc - 1]); 4762 } 4763 4764 static void 4765 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4766 { 4767 int uge_sum = opts->user + opts->group + opts->everyone; 4768 int csuge_sum = opts->create + opts->set + uge_sum; 4769 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4770 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4771 4772 if (uge_sum > 1) 4773 allow_usage(un, B_FALSE, 4774 gettext("-u, -g, and -e are mutually exclusive\n")); 4775 4776 if (opts->prt_usage) 4777 if (argc == 0 && all_sum == 0) 4778 allow_usage(un, B_TRUE, NULL); 4779 else 4780 usage(B_FALSE); 4781 4782 if (opts->set) { 4783 if (csuge_sum > 1) 4784 allow_usage(un, B_FALSE, 4785 gettext("invalid options combined with -s\n")); 4786 4787 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4788 if (argv[0][0] != '@') 4789 allow_usage(un, B_FALSE, 4790 gettext("invalid set name: missing '@' prefix\n")); 4791 opts->who = argv[0]; 4792 } else if (opts->create) { 4793 if (ldcsuge_sum > 1) 4794 allow_usage(un, B_FALSE, 4795 gettext("invalid options combined with -c\n")); 4796 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4797 } else if (opts->everyone) { 4798 if (csuge_sum > 1) 4799 allow_usage(un, B_FALSE, 4800 gettext("invalid options combined with -e\n")); 4801 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4802 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4803 == 0) { 4804 opts->everyone = B_TRUE; 4805 argc--; 4806 argv++; 4807 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4808 } else if (argc == 1 && !un) { 4809 opts->prt_perms = B_TRUE; 4810 opts->dataset = argv[argc-1]; 4811 } else { 4812 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4813 opts->who = argv[0]; 4814 } 4815 4816 if (!opts->local && !opts->descend) { 4817 opts->local = B_TRUE; 4818 opts->descend = B_TRUE; 4819 } 4820 } 4821 4822 static void 4823 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4824 const char *who, char *perms, nvlist_t *top_nvl) 4825 { 4826 int i; 4827 char ld[2] = { '\0', '\0' }; 4828 char who_buf[ZFS_MAXNAMELEN+32]; 4829 char base_type; 4830 char set_type; 4831 nvlist_t *base_nvl = NULL; 4832 nvlist_t *set_nvl = NULL; 4833 nvlist_t *nvl; 4834 4835 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4836 nomem(); 4837 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4838 nomem(); 4839 4840 switch (type) { 4841 case ZFS_DELEG_NAMED_SET_SETS: 4842 case ZFS_DELEG_NAMED_SET: 4843 set_type = ZFS_DELEG_NAMED_SET_SETS; 4844 base_type = ZFS_DELEG_NAMED_SET; 4845 ld[0] = ZFS_DELEG_NA; 4846 break; 4847 case ZFS_DELEG_CREATE_SETS: 4848 case ZFS_DELEG_CREATE: 4849 set_type = ZFS_DELEG_CREATE_SETS; 4850 base_type = ZFS_DELEG_CREATE; 4851 ld[0] = ZFS_DELEG_NA; 4852 break; 4853 case ZFS_DELEG_USER_SETS: 4854 case ZFS_DELEG_USER: 4855 set_type = ZFS_DELEG_USER_SETS; 4856 base_type = ZFS_DELEG_USER; 4857 if (local) 4858 ld[0] = ZFS_DELEG_LOCAL; 4859 if (descend) 4860 ld[1] = ZFS_DELEG_DESCENDENT; 4861 break; 4862 case ZFS_DELEG_GROUP_SETS: 4863 case ZFS_DELEG_GROUP: 4864 set_type = ZFS_DELEG_GROUP_SETS; 4865 base_type = ZFS_DELEG_GROUP; 4866 if (local) 4867 ld[0] = ZFS_DELEG_LOCAL; 4868 if (descend) 4869 ld[1] = ZFS_DELEG_DESCENDENT; 4870 break; 4871 case ZFS_DELEG_EVERYONE_SETS: 4872 case ZFS_DELEG_EVERYONE: 4873 set_type = ZFS_DELEG_EVERYONE_SETS; 4874 base_type = ZFS_DELEG_EVERYONE; 4875 if (local) 4876 ld[0] = ZFS_DELEG_LOCAL; 4877 if (descend) 4878 ld[1] = ZFS_DELEG_DESCENDENT; 4879 } 4880 4881 if (perms != NULL) { 4882 char *curr = perms; 4883 char *end = curr + strlen(perms); 4884 4885 while (curr < end) { 4886 char *delim = strchr(curr, ','); 4887 if (delim == NULL) 4888 delim = end; 4889 else 4890 *delim = '\0'; 4891 4892 if (curr[0] == '@') 4893 nvl = set_nvl; 4894 else 4895 nvl = base_nvl; 4896 4897 (void) nvlist_add_boolean(nvl, curr); 4898 if (delim != end) 4899 *delim = ','; 4900 curr = delim + 1; 4901 } 4902 4903 for (i = 0; i < 2; i++) { 4904 char locality = ld[i]; 4905 if (locality == 0) 4906 continue; 4907 4908 if (!nvlist_empty(base_nvl)) { 4909 if (who != NULL) 4910 (void) snprintf(who_buf, 4911 sizeof (who_buf), "%c%c$%s", 4912 base_type, locality, who); 4913 else 4914 (void) snprintf(who_buf, 4915 sizeof (who_buf), "%c%c$", 4916 base_type, locality); 4917 4918 (void) nvlist_add_nvlist(top_nvl, who_buf, 4919 base_nvl); 4920 } 4921 4922 4923 if (!nvlist_empty(set_nvl)) { 4924 if (who != NULL) 4925 (void) snprintf(who_buf, 4926 sizeof (who_buf), "%c%c$%s", 4927 set_type, locality, who); 4928 else 4929 (void) snprintf(who_buf, 4930 sizeof (who_buf), "%c%c$", 4931 set_type, locality); 4932 4933 (void) nvlist_add_nvlist(top_nvl, who_buf, 4934 set_nvl); 4935 } 4936 } 4937 } else { 4938 for (i = 0; i < 2; i++) { 4939 char locality = ld[i]; 4940 if (locality == 0) 4941 continue; 4942 4943 if (who != NULL) 4944 (void) snprintf(who_buf, sizeof (who_buf), 4945 "%c%c$%s", base_type, locality, who); 4946 else 4947 (void) snprintf(who_buf, sizeof (who_buf), 4948 "%c%c$", base_type, locality); 4949 (void) nvlist_add_boolean(top_nvl, who_buf); 4950 4951 if (who != NULL) 4952 (void) snprintf(who_buf, sizeof (who_buf), 4953 "%c%c$%s", set_type, locality, who); 4954 else 4955 (void) snprintf(who_buf, sizeof (who_buf), 4956 "%c%c$", set_type, locality); 4957 (void) nvlist_add_boolean(top_nvl, who_buf); 4958 } 4959 } 4960 } 4961 4962 static int 4963 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4964 { 4965 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4966 nomem(); 4967 4968 if (opts->set) { 4969 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4970 opts->descend, opts->who, opts->perms, *nvlp); 4971 } else if (opts->create) { 4972 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4973 opts->descend, NULL, opts->perms, *nvlp); 4974 } else if (opts->everyone) { 4975 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4976 opts->descend, NULL, opts->perms, *nvlp); 4977 } else { 4978 char *curr = opts->who; 4979 char *end = curr + strlen(curr); 4980 4981 while (curr < end) { 4982 const char *who; 4983 zfs_deleg_who_type_t who_type; 4984 char *endch; 4985 char *delim = strchr(curr, ','); 4986 char errbuf[256]; 4987 char id[64]; 4988 struct passwd *p = NULL; 4989 struct group *g = NULL; 4990 4991 uid_t rid; 4992 if (delim == NULL) 4993 delim = end; 4994 else 4995 *delim = '\0'; 4996 4997 rid = (uid_t)strtol(curr, &endch, 0); 4998 if (opts->user) { 4999 who_type = ZFS_DELEG_USER; 5000 if (*endch != '\0') 5001 p = getpwnam(curr); 5002 else 5003 p = getpwuid(rid); 5004 5005 if (p != NULL) 5006 rid = p->pw_uid; 5007 else { 5008 (void) snprintf(errbuf, 256, gettext( 5009 "invalid user %s"), curr); 5010 allow_usage(un, B_TRUE, errbuf); 5011 } 5012 } else if (opts->group) { 5013 who_type = ZFS_DELEG_GROUP; 5014 if (*endch != '\0') 5015 g = getgrnam(curr); 5016 else 5017 g = getgrgid(rid); 5018 5019 if (g != NULL) 5020 rid = g->gr_gid; 5021 else { 5022 (void) snprintf(errbuf, 256, gettext( 5023 "invalid group %s"), curr); 5024 allow_usage(un, B_TRUE, errbuf); 5025 } 5026 } else { 5027 if (*endch != '\0') { 5028 p = getpwnam(curr); 5029 } else { 5030 p = getpwuid(rid); 5031 } 5032 5033 if (p == NULL) 5034 if (*endch != '\0') { 5035 g = getgrnam(curr); 5036 } else { 5037 g = getgrgid(rid); 5038 } 5039 5040 if (p != NULL) { 5041 who_type = ZFS_DELEG_USER; 5042 rid = p->pw_uid; 5043 } else if (g != NULL) { 5044 who_type = ZFS_DELEG_GROUP; 5045 rid = g->gr_gid; 5046 } else { 5047 (void) snprintf(errbuf, 256, gettext( 5048 "invalid user/group %s"), curr); 5049 allow_usage(un, B_TRUE, errbuf); 5050 } 5051 } 5052 5053 (void) sprintf(id, "%u", rid); 5054 who = id; 5055 5056 store_allow_perm(who_type, opts->local, 5057 opts->descend, who, opts->perms, *nvlp); 5058 curr = delim + 1; 5059 } 5060 } 5061 5062 return (0); 5063 } 5064 5065 static void 5066 print_set_creat_perms(uu_avl_t *who_avl) 5067 { 5068 const char *sc_title[] = { 5069 gettext("Permission sets:\n"), 5070 gettext("Create time permissions:\n"), 5071 NULL 5072 }; 5073 const char **title_ptr = sc_title; 5074 who_perm_node_t *who_node = NULL; 5075 int prev_weight = -1; 5076 5077 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5078 who_node = uu_avl_next(who_avl, who_node)) { 5079 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5080 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5081 const char *who_name = who_node->who_perm.who_name; 5082 int weight = who_type2weight(who_type); 5083 boolean_t first = B_TRUE; 5084 deleg_perm_node_t *deleg_node; 5085 5086 if (prev_weight != weight) { 5087 (void) printf(*title_ptr++); 5088 prev_weight = weight; 5089 } 5090 5091 if (who_name == NULL || strnlen(who_name, 1) == 0) 5092 (void) printf("\t"); 5093 else 5094 (void) printf("\t%s ", who_name); 5095 5096 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5097 deleg_node = uu_avl_next(avl, deleg_node)) { 5098 if (first) { 5099 (void) printf("%s", 5100 deleg_node->dpn_perm.dp_name); 5101 first = B_FALSE; 5102 } else 5103 (void) printf(",%s", 5104 deleg_node->dpn_perm.dp_name); 5105 } 5106 5107 (void) printf("\n"); 5108 } 5109 } 5110 5111 static void inline 5112 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5113 const char *title) 5114 { 5115 who_perm_node_t *who_node = NULL; 5116 boolean_t prt_title = B_TRUE; 5117 uu_avl_walk_t *walk; 5118 5119 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5120 nomem(); 5121 5122 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5123 const char *who_name = who_node->who_perm.who_name; 5124 const char *nice_who_name = who_node->who_perm.who_ug_name; 5125 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5126 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5127 char delim = ' '; 5128 deleg_perm_node_t *deleg_node; 5129 boolean_t prt_who = B_TRUE; 5130 5131 for (deleg_node = uu_avl_first(avl); 5132 deleg_node != NULL; 5133 deleg_node = uu_avl_next(avl, deleg_node)) { 5134 if (local != deleg_node->dpn_perm.dp_local || 5135 descend != deleg_node->dpn_perm.dp_descend) 5136 continue; 5137 5138 if (prt_who) { 5139 const char *who = NULL; 5140 if (prt_title) { 5141 prt_title = B_FALSE; 5142 (void) printf(title); 5143 } 5144 5145 switch (who_type) { 5146 case ZFS_DELEG_USER_SETS: 5147 case ZFS_DELEG_USER: 5148 who = gettext("user"); 5149 if (nice_who_name) 5150 who_name = nice_who_name; 5151 break; 5152 case ZFS_DELEG_GROUP_SETS: 5153 case ZFS_DELEG_GROUP: 5154 who = gettext("group"); 5155 if (nice_who_name) 5156 who_name = nice_who_name; 5157 break; 5158 case ZFS_DELEG_EVERYONE_SETS: 5159 case ZFS_DELEG_EVERYONE: 5160 who = gettext("everyone"); 5161 who_name = NULL; 5162 } 5163 5164 prt_who = B_FALSE; 5165 if (who_name == NULL) 5166 (void) printf("\t%s", who); 5167 else 5168 (void) printf("\t%s %s", who, who_name); 5169 } 5170 5171 (void) printf("%c%s", delim, 5172 deleg_node->dpn_perm.dp_name); 5173 delim = ','; 5174 } 5175 5176 if (!prt_who) 5177 (void) printf("\n"); 5178 } 5179 5180 uu_avl_walk_end(walk); 5181 } 5182 5183 static void 5184 print_fs_perms(fs_perm_set_t *fspset) 5185 { 5186 fs_perm_node_t *node = NULL; 5187 char buf[ZFS_MAXNAMELEN+32]; 5188 const char *dsname = buf; 5189 5190 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5191 node = uu_list_next(fspset->fsps_list, node)) { 5192 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5193 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5194 int left = 0; 5195 5196 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5197 gettext("---- Permissions on %s "), 5198 node->fspn_fsperm.fsp_name); 5199 (void) printf(dsname); 5200 left = 70 - strlen(buf); 5201 while (left-- > 0) 5202 (void) printf("-"); 5203 (void) printf("\n"); 5204 5205 print_set_creat_perms(sc_avl); 5206 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5207 gettext("Local permissions:\n")); 5208 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5209 gettext("Descendent permissions:\n")); 5210 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5211 gettext("Local+Descendent permissions:\n")); 5212 } 5213 } 5214 5215 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5216 5217 struct deleg_perms { 5218 boolean_t un; 5219 nvlist_t *nvl; 5220 }; 5221 5222 static int 5223 set_deleg_perms(zfs_handle_t *zhp, void *data) 5224 { 5225 struct deleg_perms *perms = (struct deleg_perms *)data; 5226 zfs_type_t zfs_type = zfs_get_type(zhp); 5227 5228 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5229 return (0); 5230 5231 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5232 } 5233 5234 static int 5235 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5236 { 5237 zfs_handle_t *zhp; 5238 nvlist_t *perm_nvl = NULL; 5239 nvlist_t *update_perm_nvl = NULL; 5240 int error = 1; 5241 int c; 5242 struct allow_opts opts = { 0 }; 5243 5244 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5245 5246 /* check opts */ 5247 while ((c = getopt(argc, argv, optstr)) != -1) { 5248 switch (c) { 5249 case 'l': 5250 opts.local = B_TRUE; 5251 break; 5252 case 'd': 5253 opts.descend = B_TRUE; 5254 break; 5255 case 'u': 5256 opts.user = B_TRUE; 5257 break; 5258 case 'g': 5259 opts.group = B_TRUE; 5260 break; 5261 case 'e': 5262 opts.everyone = B_TRUE; 5263 break; 5264 case 's': 5265 opts.set = B_TRUE; 5266 break; 5267 case 'c': 5268 opts.create = B_TRUE; 5269 break; 5270 case 'r': 5271 opts.recursive = B_TRUE; 5272 break; 5273 case ':': 5274 (void) fprintf(stderr, gettext("missing argument for " 5275 "'%c' option\n"), optopt); 5276 usage(B_FALSE); 5277 break; 5278 case 'h': 5279 opts.prt_usage = B_TRUE; 5280 break; 5281 case '?': 5282 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5283 optopt); 5284 usage(B_FALSE); 5285 } 5286 } 5287 5288 argc -= optind; 5289 argv += optind; 5290 5291 /* check arguments */ 5292 parse_allow_args(argc, argv, un, &opts); 5293 5294 /* try to open the dataset */ 5295 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5296 ZFS_TYPE_VOLUME)) == NULL) { 5297 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5298 opts.dataset); 5299 return (-1); 5300 } 5301 5302 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5303 goto cleanup2; 5304 5305 fs_perm_set_init(&fs_perm_set); 5306 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5307 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5308 goto cleanup1; 5309 } 5310 5311 if (opts.prt_perms) 5312 print_fs_perms(&fs_perm_set); 5313 else { 5314 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5315 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5316 goto cleanup0; 5317 5318 if (un && opts.recursive) { 5319 struct deleg_perms data = { un, update_perm_nvl }; 5320 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5321 &data) != 0) 5322 goto cleanup0; 5323 } 5324 } 5325 5326 error = 0; 5327 5328 cleanup0: 5329 nvlist_free(perm_nvl); 5330 if (update_perm_nvl != NULL) 5331 nvlist_free(update_perm_nvl); 5332 cleanup1: 5333 fs_perm_set_fini(&fs_perm_set); 5334 cleanup2: 5335 zfs_close(zhp); 5336 5337 return (error); 5338 } 5339 5340 static int 5341 zfs_do_allow(int argc, char **argv) 5342 { 5343 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5344 } 5345 5346 static int 5347 zfs_do_unallow(int argc, char **argv) 5348 { 5349 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5350 } 5351 5352 static int 5353 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5354 { 5355 int errors = 0; 5356 int i; 5357 const char *tag; 5358 boolean_t recursive = B_FALSE; 5359 const char *opts = holding ? "rt" : "r"; 5360 int c; 5361 5362 /* check options */ 5363 while ((c = getopt(argc, argv, opts)) != -1) { 5364 switch (c) { 5365 case 'r': 5366 recursive = B_TRUE; 5367 break; 5368 case '?': 5369 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5370 optopt); 5371 usage(B_FALSE); 5372 } 5373 } 5374 5375 argc -= optind; 5376 argv += optind; 5377 5378 /* check number of arguments */ 5379 if (argc < 2) 5380 usage(B_FALSE); 5381 5382 tag = argv[0]; 5383 --argc; 5384 ++argv; 5385 5386 if (holding && tag[0] == '.') { 5387 /* tags starting with '.' are reserved for libzfs */ 5388 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5389 usage(B_FALSE); 5390 } 5391 5392 for (i = 0; i < argc; ++i) { 5393 zfs_handle_t *zhp; 5394 char parent[ZFS_MAXNAMELEN]; 5395 const char *delim; 5396 char *path = argv[i]; 5397 5398 delim = strchr(path, '@'); 5399 if (delim == NULL) { 5400 (void) fprintf(stderr, 5401 gettext("'%s' is not a snapshot\n"), path); 5402 ++errors; 5403 continue; 5404 } 5405 (void) strncpy(parent, path, delim - path); 5406 parent[delim - path] = '\0'; 5407 5408 zhp = zfs_open(g_zfs, parent, 5409 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5410 if (zhp == NULL) { 5411 ++errors; 5412 continue; 5413 } 5414 if (holding) { 5415 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5416 ++errors; 5417 } else { 5418 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5419 ++errors; 5420 } 5421 zfs_close(zhp); 5422 } 5423 5424 return (errors != 0); 5425 } 5426 5427 /* 5428 * zfs hold [-r] [-t] <tag> <snap> ... 5429 * 5430 * -r Recursively hold 5431 * 5432 * Apply a user-hold with the given tag to the list of snapshots. 5433 */ 5434 static int 5435 zfs_do_hold(int argc, char **argv) 5436 { 5437 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5438 } 5439 5440 /* 5441 * zfs release [-r] <tag> <snap> ... 5442 * 5443 * -r Recursively release 5444 * 5445 * Release a user-hold with the given tag from the list of snapshots. 5446 */ 5447 static int 5448 zfs_do_release(int argc, char **argv) 5449 { 5450 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5451 } 5452 5453 typedef struct holds_cbdata { 5454 boolean_t cb_recursive; 5455 const char *cb_snapname; 5456 nvlist_t **cb_nvlp; 5457 size_t cb_max_namelen; 5458 size_t cb_max_taglen; 5459 } holds_cbdata_t; 5460 5461 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5462 #define DATETIME_BUF_LEN (32) 5463 /* 5464 * 5465 */ 5466 static void 5467 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5468 { 5469 int i; 5470 nvpair_t *nvp = NULL; 5471 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5472 const char *col; 5473 5474 if (!scripted) { 5475 for (i = 0; i < 3; i++) { 5476 col = gettext(hdr_cols[i]); 5477 if (i < 2) 5478 (void) printf("%-*s ", i ? tagwidth : nwidth, 5479 col); 5480 else 5481 (void) printf("%s\n", col); 5482 } 5483 } 5484 5485 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5486 char *zname = nvpair_name(nvp); 5487 nvlist_t *nvl2; 5488 nvpair_t *nvp2 = NULL; 5489 (void) nvpair_value_nvlist(nvp, &nvl2); 5490 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5491 char tsbuf[DATETIME_BUF_LEN]; 5492 char *tagname = nvpair_name(nvp2); 5493 uint64_t val = 0; 5494 time_t time; 5495 struct tm t; 5496 char sep = scripted ? '\t' : ' '; 5497 size_t sepnum = scripted ? 1 : 2; 5498 5499 (void) nvpair_value_uint64(nvp2, &val); 5500 time = (time_t)val; 5501 (void) localtime_r(&time, &t); 5502 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5503 gettext(STRFTIME_FMT_STR), &t); 5504 5505 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5506 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5507 } 5508 } 5509 } 5510 5511 /* 5512 * Generic callback function to list a dataset or snapshot. 5513 */ 5514 static int 5515 holds_callback(zfs_handle_t *zhp, void *data) 5516 { 5517 holds_cbdata_t *cbp = data; 5518 nvlist_t *top_nvl = *cbp->cb_nvlp; 5519 nvlist_t *nvl = NULL; 5520 nvpair_t *nvp = NULL; 5521 const char *zname = zfs_get_name(zhp); 5522 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5523 5524 if (cbp->cb_recursive) { 5525 const char *snapname; 5526 char *delim = strchr(zname, '@'); 5527 if (delim == NULL) 5528 return (0); 5529 5530 snapname = delim + 1; 5531 if (strcmp(cbp->cb_snapname, snapname)) 5532 return (0); 5533 } 5534 5535 if (zfs_get_holds(zhp, &nvl) != 0) 5536 return (-1); 5537 5538 if (znamelen > cbp->cb_max_namelen) 5539 cbp->cb_max_namelen = znamelen; 5540 5541 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5542 const char *tag = nvpair_name(nvp); 5543 size_t taglen = strnlen(tag, MAXNAMELEN); 5544 if (taglen > cbp->cb_max_taglen) 5545 cbp->cb_max_taglen = taglen; 5546 } 5547 5548 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5549 } 5550 5551 /* 5552 * zfs holds [-r] <snap> ... 5553 * 5554 * -r Recursively hold 5555 */ 5556 static int 5557 zfs_do_holds(int argc, char **argv) 5558 { 5559 int errors = 0; 5560 int c; 5561 int i; 5562 boolean_t scripted = B_FALSE; 5563 boolean_t recursive = B_FALSE; 5564 const char *opts = "rH"; 5565 nvlist_t *nvl; 5566 5567 int types = ZFS_TYPE_SNAPSHOT; 5568 holds_cbdata_t cb = { 0 }; 5569 5570 int limit = 0; 5571 int ret = 0; 5572 int flags = 0; 5573 5574 /* check options */ 5575 while ((c = getopt(argc, argv, opts)) != -1) { 5576 switch (c) { 5577 case 'r': 5578 recursive = B_TRUE; 5579 break; 5580 case 'H': 5581 scripted = B_TRUE; 5582 break; 5583 case '?': 5584 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5585 optopt); 5586 usage(B_FALSE); 5587 } 5588 } 5589 5590 if (recursive) { 5591 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5592 flags |= ZFS_ITER_RECURSE; 5593 } 5594 5595 argc -= optind; 5596 argv += optind; 5597 5598 /* check number of arguments */ 5599 if (argc < 1) 5600 usage(B_FALSE); 5601 5602 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5603 nomem(); 5604 5605 for (i = 0; i < argc; ++i) { 5606 char *snapshot = argv[i]; 5607 const char *delim; 5608 const char *snapname; 5609 5610 delim = strchr(snapshot, '@'); 5611 if (delim == NULL) { 5612 (void) fprintf(stderr, 5613 gettext("'%s' is not a snapshot\n"), snapshot); 5614 ++errors; 5615 continue; 5616 } 5617 snapname = delim + 1; 5618 if (recursive) 5619 snapshot[delim - snapshot] = '\0'; 5620 5621 cb.cb_recursive = recursive; 5622 cb.cb_snapname = snapname; 5623 cb.cb_nvlp = &nvl; 5624 5625 /* 5626 * 1. collect holds data, set format options 5627 */ 5628 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5629 holds_callback, &cb); 5630 if (ret != 0) 5631 ++errors; 5632 } 5633 5634 /* 5635 * 2. print holds data 5636 */ 5637 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5638 5639 if (nvlist_empty(nvl)) 5640 (void) printf(gettext("no datasets available\n")); 5641 5642 nvlist_free(nvl); 5643 5644 return (0 != errors); 5645 } 5646 5647 #define CHECK_SPINNER 30 5648 #define SPINNER_TIME 3 /* seconds */ 5649 #define MOUNT_TIME 5 /* seconds */ 5650 5651 static int 5652 get_one_dataset(zfs_handle_t *zhp, void *data) 5653 { 5654 static char *spin[] = { "-", "\\", "|", "/" }; 5655 static int spinval = 0; 5656 static int spincheck = 0; 5657 static time_t last_spin_time = (time_t)0; 5658 get_all_cb_t *cbp = data; 5659 zfs_type_t type = zfs_get_type(zhp); 5660 5661 if (cbp->cb_verbose) { 5662 if (--spincheck < 0) { 5663 time_t now = time(NULL); 5664 if (last_spin_time + SPINNER_TIME < now) { 5665 update_progress(spin[spinval++ % 4]); 5666 last_spin_time = now; 5667 } 5668 spincheck = CHECK_SPINNER; 5669 } 5670 } 5671 5672 /* 5673 * Interate over any nested datasets. 5674 */ 5675 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5676 zfs_close(zhp); 5677 return (1); 5678 } 5679 5680 /* 5681 * Skip any datasets whose type does not match. 5682 */ 5683 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5684 zfs_close(zhp); 5685 return (0); 5686 } 5687 libzfs_add_handle(cbp, zhp); 5688 assert(cbp->cb_used <= cbp->cb_alloc); 5689 5690 return (0); 5691 } 5692 5693 static void 5694 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5695 { 5696 get_all_cb_t cb = { 0 }; 5697 cb.cb_verbose = verbose; 5698 cb.cb_getone = get_one_dataset; 5699 5700 if (verbose) 5701 set_progress_header(gettext("Reading ZFS config")); 5702 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5703 5704 *dslist = cb.cb_handles; 5705 *count = cb.cb_used; 5706 5707 if (verbose) 5708 finish_progress(gettext("done.")); 5709 } 5710 5711 /* 5712 * Generic callback for sharing or mounting filesystems. Because the code is so 5713 * similar, we have a common function with an extra parameter to determine which 5714 * mode we are using. 5715 */ 5716 #define OP_SHARE 0x1 5717 #define OP_MOUNT 0x2 5718 5719 /* 5720 * Share or mount a dataset. 5721 */ 5722 static int 5723 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5724 boolean_t explicit, const char *options) 5725 { 5726 char mountpoint[ZFS_MAXPROPLEN]; 5727 char shareopts[ZFS_MAXPROPLEN]; 5728 char smbshareopts[ZFS_MAXPROPLEN]; 5729 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5730 struct mnttab mnt; 5731 uint64_t zoned, canmount; 5732 boolean_t shared_nfs, shared_smb; 5733 5734 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5735 5736 /* 5737 * Check to make sure we can mount/share this dataset. If we 5738 * are in the global zone and the filesystem is exported to a 5739 * local zone, or if we are in a local zone and the 5740 * filesystem is not exported, then it is an error. 5741 */ 5742 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5743 5744 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5745 if (!explicit) 5746 return (0); 5747 5748 (void) fprintf(stderr, gettext("cannot %s '%s': " 5749 "dataset is exported to a local zone\n"), cmdname, 5750 zfs_get_name(zhp)); 5751 return (1); 5752 5753 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5754 if (!explicit) 5755 return (0); 5756 5757 (void) fprintf(stderr, gettext("cannot %s '%s': " 5758 "permission denied\n"), cmdname, 5759 zfs_get_name(zhp)); 5760 return (1); 5761 } 5762 5763 /* 5764 * Ignore any filesystems which don't apply to us. This 5765 * includes those with a legacy mountpoint, or those with 5766 * legacy share options. 5767 */ 5768 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5769 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5770 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5771 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5772 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5773 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5774 5775 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5776 strcmp(smbshareopts, "off") == 0) { 5777 if (!explicit) 5778 return (0); 5779 5780 (void) fprintf(stderr, gettext("cannot share '%s': " 5781 "legacy share\n"), zfs_get_name(zhp)); 5782 (void) fprintf(stderr, gettext("use share(1M) to " 5783 "share this filesystem, or set " 5784 "sharenfs property on\n")); 5785 return (1); 5786 } 5787 5788 /* 5789 * We cannot share or mount legacy filesystems. If the 5790 * shareopts is non-legacy but the mountpoint is legacy, we 5791 * treat it as a legacy share. 5792 */ 5793 if (strcmp(mountpoint, "legacy") == 0) { 5794 if (!explicit) 5795 return (0); 5796 5797 (void) fprintf(stderr, gettext("cannot %s '%s': " 5798 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5799 (void) fprintf(stderr, gettext("use %s(1M) to " 5800 "%s this filesystem\n"), cmdname, cmdname); 5801 return (1); 5802 } 5803 5804 if (strcmp(mountpoint, "none") == 0) { 5805 if (!explicit) 5806 return (0); 5807 5808 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5809 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5810 return (1); 5811 } 5812 5813 /* 5814 * canmount explicit outcome 5815 * on no pass through 5816 * on yes pass through 5817 * off no return 0 5818 * off yes display error, return 1 5819 * noauto no return 0 5820 * noauto yes pass through 5821 */ 5822 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5823 if (canmount == ZFS_CANMOUNT_OFF) { 5824 if (!explicit) 5825 return (0); 5826 5827 (void) fprintf(stderr, gettext("cannot %s '%s': " 5828 "'canmount' property is set to 'off'\n"), cmdname, 5829 zfs_get_name(zhp)); 5830 return (1); 5831 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5832 return (0); 5833 } 5834 5835 /* 5836 * If this filesystem is inconsistent and has a receive resume 5837 * token, we can not mount it. 5838 */ 5839 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5840 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5841 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5842 if (!explicit) 5843 return (0); 5844 5845 (void) fprintf(stderr, gettext("cannot %s '%s': " 5846 "Contains partially-completed state from " 5847 "\"zfs receive -r\", which can be resumed with " 5848 "\"zfs send -t\"\n"), 5849 cmdname, zfs_get_name(zhp)); 5850 return (1); 5851 } 5852 5853 /* 5854 * At this point, we have verified that the mountpoint and/or 5855 * shareopts are appropriate for auto management. If the 5856 * filesystem is already mounted or shared, return (failing 5857 * for explicit requests); otherwise mount or share the 5858 * filesystem. 5859 */ 5860 switch (op) { 5861 case OP_SHARE: 5862 5863 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5864 shared_smb = zfs_is_shared_smb(zhp, NULL); 5865 5866 if (shared_nfs && shared_smb || 5867 (shared_nfs && strcmp(shareopts, "on") == 0 && 5868 strcmp(smbshareopts, "off") == 0) || 5869 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5870 strcmp(shareopts, "off") == 0)) { 5871 if (!explicit) 5872 return (0); 5873 5874 (void) fprintf(stderr, gettext("cannot share " 5875 "'%s': filesystem already shared\n"), 5876 zfs_get_name(zhp)); 5877 return (1); 5878 } 5879 5880 if (!zfs_is_mounted(zhp, NULL) && 5881 zfs_mount(zhp, NULL, 0) != 0) 5882 return (1); 5883 5884 if (protocol == NULL) { 5885 if (zfs_shareall(zhp) != 0) 5886 return (1); 5887 } else if (strcmp(protocol, "nfs") == 0) { 5888 if (zfs_share_nfs(zhp)) 5889 return (1); 5890 } else if (strcmp(protocol, "smb") == 0) { 5891 if (zfs_share_smb(zhp)) 5892 return (1); 5893 } else { 5894 (void) fprintf(stderr, gettext("cannot share " 5895 "'%s': invalid share type '%s' " 5896 "specified\n"), 5897 zfs_get_name(zhp), protocol); 5898 return (1); 5899 } 5900 5901 break; 5902 5903 case OP_MOUNT: 5904 if (options == NULL) 5905 mnt.mnt_mntopts = ""; 5906 else 5907 mnt.mnt_mntopts = (char *)options; 5908 5909 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5910 zfs_is_mounted(zhp, NULL)) { 5911 if (!explicit) 5912 return (0); 5913 5914 (void) fprintf(stderr, gettext("cannot mount " 5915 "'%s': filesystem already mounted\n"), 5916 zfs_get_name(zhp)); 5917 return (1); 5918 } 5919 5920 if (zfs_mount(zhp, options, flags) != 0) 5921 return (1); 5922 break; 5923 } 5924 5925 return (0); 5926 } 5927 5928 /* 5929 * Reports progress in the form "(current/total)". Not thread-safe. 5930 */ 5931 static void 5932 report_mount_progress(int current, int total) 5933 { 5934 static time_t last_progress_time = 0; 5935 time_t now = time(NULL); 5936 char info[32]; 5937 5938 /* report 1..n instead of 0..n-1 */ 5939 ++current; 5940 5941 /* display header if we're here for the first time */ 5942 if (current == 1) { 5943 set_progress_header(gettext("Mounting ZFS filesystems")); 5944 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5945 /* too soon to report again */ 5946 return; 5947 } 5948 5949 last_progress_time = now; 5950 5951 (void) sprintf(info, "(%d/%d)", current, total); 5952 5953 if (current == total) 5954 finish_progress(info); 5955 else 5956 update_progress(info); 5957 } 5958 5959 static void 5960 append_options(char *mntopts, char *newopts) 5961 { 5962 int len = strlen(mntopts); 5963 5964 /* original length plus new string to append plus 1 for the comma */ 5965 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5966 (void) fprintf(stderr, gettext("the opts argument for " 5967 "'%c' option is too long (more than %d chars)\n"), 5968 "-o", MNT_LINE_MAX); 5969 usage(B_FALSE); 5970 } 5971 5972 if (*mntopts) 5973 mntopts[len++] = ','; 5974 5975 (void) strcpy(&mntopts[len], newopts); 5976 } 5977 5978 static int 5979 share_mount(int op, int argc, char **argv) 5980 { 5981 int do_all = 0; 5982 boolean_t verbose = B_FALSE; 5983 int c, ret = 0; 5984 char *options = NULL; 5985 int flags = 0; 5986 5987 /* check options */ 5988 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5989 != -1) { 5990 switch (c) { 5991 case 'a': 5992 do_all = 1; 5993 break; 5994 case 'v': 5995 verbose = B_TRUE; 5996 break; 5997 case 'o': 5998 if (*optarg == '\0') { 5999 (void) fprintf(stderr, gettext("empty mount " 6000 "options (-o) specified\n")); 6001 usage(B_FALSE); 6002 } 6003 6004 if (options == NULL) 6005 options = safe_malloc(MNT_LINE_MAX + 1); 6006 6007 /* option validation is done later */ 6008 append_options(options, optarg); 6009 break; 6010 6011 case 'O': 6012 flags |= MS_OVERLAY; 6013 break; 6014 case ':': 6015 (void) fprintf(stderr, gettext("missing argument for " 6016 "'%c' option\n"), optopt); 6017 usage(B_FALSE); 6018 break; 6019 case '?': 6020 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6021 optopt); 6022 usage(B_FALSE); 6023 } 6024 } 6025 6026 argc -= optind; 6027 argv += optind; 6028 6029 /* check number of arguments */ 6030 if (do_all) { 6031 zfs_handle_t **dslist = NULL; 6032 size_t i, count = 0; 6033 char *protocol = NULL; 6034 6035 if (op == OP_SHARE && argc > 0) { 6036 if (strcmp(argv[0], "nfs") != 0 && 6037 strcmp(argv[0], "smb") != 0) { 6038 (void) fprintf(stderr, gettext("share type " 6039 "must be 'nfs' or 'smb'\n")); 6040 usage(B_FALSE); 6041 } 6042 protocol = argv[0]; 6043 argc--; 6044 argv++; 6045 } 6046 6047 if (argc != 0) { 6048 (void) fprintf(stderr, gettext("too many arguments\n")); 6049 usage(B_FALSE); 6050 } 6051 6052 start_progress_timer(); 6053 get_all_datasets(&dslist, &count, verbose); 6054 6055 if (count == 0) 6056 return (0); 6057 6058 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6059 6060 for (i = 0; i < count; i++) { 6061 if (verbose) 6062 report_mount_progress(i, count); 6063 6064 if (share_mount_one(dslist[i], op, flags, protocol, 6065 B_FALSE, options) != 0) 6066 ret = 1; 6067 zfs_close(dslist[i]); 6068 } 6069 6070 free(dslist); 6071 } else if (argc == 0) { 6072 struct mnttab entry; 6073 6074 if ((op == OP_SHARE) || (options != NULL)) { 6075 (void) fprintf(stderr, gettext("missing filesystem " 6076 "argument (specify -a for all)\n")); 6077 usage(B_FALSE); 6078 } 6079 6080 /* 6081 * When mount is given no arguments, go through /etc/mnttab and 6082 * display any active ZFS mounts. We hide any snapshots, since 6083 * they are controlled automatically. 6084 */ 6085 rewind(mnttab_file); 6086 while (getmntent(mnttab_file, &entry) == 0) { 6087 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6088 strchr(entry.mnt_special, '@') != NULL) 6089 continue; 6090 6091 (void) printf("%-30s %s\n", entry.mnt_special, 6092 entry.mnt_mountp); 6093 } 6094 6095 } else { 6096 zfs_handle_t *zhp; 6097 6098 if (argc > 1) { 6099 (void) fprintf(stderr, 6100 gettext("too many arguments\n")); 6101 usage(B_FALSE); 6102 } 6103 6104 if ((zhp = zfs_open(g_zfs, argv[0], 6105 ZFS_TYPE_FILESYSTEM)) == NULL) { 6106 ret = 1; 6107 } else { 6108 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6109 options); 6110 zfs_close(zhp); 6111 } 6112 } 6113 6114 return (ret); 6115 } 6116 6117 /* 6118 * zfs mount -a [nfs] 6119 * zfs mount filesystem 6120 * 6121 * Mount all filesystems, or mount the given filesystem. 6122 */ 6123 static int 6124 zfs_do_mount(int argc, char **argv) 6125 { 6126 return (share_mount(OP_MOUNT, argc, argv)); 6127 } 6128 6129 /* 6130 * zfs share -a [nfs | smb] 6131 * zfs share filesystem 6132 * 6133 * Share all filesystems, or share the given filesystem. 6134 */ 6135 static int 6136 zfs_do_share(int argc, char **argv) 6137 { 6138 return (share_mount(OP_SHARE, argc, argv)); 6139 } 6140 6141 typedef struct unshare_unmount_node { 6142 zfs_handle_t *un_zhp; 6143 char *un_mountp; 6144 uu_avl_node_t un_avlnode; 6145 } unshare_unmount_node_t; 6146 6147 /* ARGSUSED */ 6148 static int 6149 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6150 { 6151 const unshare_unmount_node_t *l = larg; 6152 const unshare_unmount_node_t *r = rarg; 6153 6154 return (strcmp(l->un_mountp, r->un_mountp)); 6155 } 6156 6157 /* 6158 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6159 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6160 * and unmount it appropriately. 6161 */ 6162 static int 6163 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6164 { 6165 zfs_handle_t *zhp; 6166 int ret = 0; 6167 struct stat64 statbuf; 6168 struct extmnttab entry; 6169 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6170 ino_t path_inode; 6171 6172 /* 6173 * Search for the path in /etc/mnttab. Rather than looking for the 6174 * specific path, which can be fooled by non-standard paths (i.e. ".." 6175 * or "//"), we stat() the path and search for the corresponding 6176 * (major,minor) device pair. 6177 */ 6178 if (stat64(path, &statbuf) != 0) { 6179 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6180 cmdname, path, strerror(errno)); 6181 return (1); 6182 } 6183 path_inode = statbuf.st_ino; 6184 6185 /* 6186 * Search for the given (major,minor) pair in the mount table. 6187 */ 6188 rewind(mnttab_file); 6189 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6190 if (entry.mnt_major == major(statbuf.st_dev) && 6191 entry.mnt_minor == minor(statbuf.st_dev)) 6192 break; 6193 } 6194 if (ret != 0) { 6195 if (op == OP_SHARE) { 6196 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6197 "currently mounted\n"), cmdname, path); 6198 return (1); 6199 } 6200 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6201 path); 6202 if ((ret = umount2(path, flags)) != 0) 6203 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6204 strerror(errno)); 6205 return (ret != 0); 6206 } 6207 6208 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6209 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6210 "filesystem\n"), cmdname, path); 6211 return (1); 6212 } 6213 6214 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6215 ZFS_TYPE_FILESYSTEM)) == NULL) 6216 return (1); 6217 6218 ret = 1; 6219 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6220 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6221 cmdname, path, strerror(errno)); 6222 goto out; 6223 } else if (statbuf.st_ino != path_inode) { 6224 (void) fprintf(stderr, gettext("cannot " 6225 "%s '%s': not a mountpoint\n"), cmdname, path); 6226 goto out; 6227 } 6228 6229 if (op == OP_SHARE) { 6230 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6231 char smbshare_prop[ZFS_MAXPROPLEN]; 6232 6233 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6234 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6235 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6236 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6237 6238 if (strcmp(nfs_mnt_prop, "off") == 0 && 6239 strcmp(smbshare_prop, "off") == 0) { 6240 (void) fprintf(stderr, gettext("cannot unshare " 6241 "'%s': legacy share\n"), path); 6242 (void) fprintf(stderr, gettext("use " 6243 "unshare(1M) to unshare this filesystem\n")); 6244 } else if (!zfs_is_shared(zhp)) { 6245 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6246 "not currently shared\n"), path); 6247 } else { 6248 ret = zfs_unshareall_bypath(zhp, path); 6249 } 6250 } else { 6251 char mtpt_prop[ZFS_MAXPROPLEN]; 6252 6253 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6254 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6255 6256 if (is_manual) { 6257 ret = zfs_unmount(zhp, NULL, flags); 6258 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6259 (void) fprintf(stderr, gettext("cannot unmount " 6260 "'%s': legacy mountpoint\n"), 6261 zfs_get_name(zhp)); 6262 (void) fprintf(stderr, gettext("use umount(1M) " 6263 "to unmount this filesystem\n")); 6264 } else { 6265 ret = zfs_unmountall(zhp, flags); 6266 } 6267 } 6268 6269 out: 6270 zfs_close(zhp); 6271 6272 return (ret != 0); 6273 } 6274 6275 /* 6276 * Generic callback for unsharing or unmounting a filesystem. 6277 */ 6278 static int 6279 unshare_unmount(int op, int argc, char **argv) 6280 { 6281 int do_all = 0; 6282 int flags = 0; 6283 int ret = 0; 6284 int c; 6285 zfs_handle_t *zhp; 6286 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6287 char sharesmb[ZFS_MAXPROPLEN]; 6288 6289 /* check options */ 6290 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6291 switch (c) { 6292 case 'a': 6293 do_all = 1; 6294 break; 6295 case 'f': 6296 flags = MS_FORCE; 6297 break; 6298 case '?': 6299 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6300 optopt); 6301 usage(B_FALSE); 6302 } 6303 } 6304 6305 argc -= optind; 6306 argv += optind; 6307 6308 if (do_all) { 6309 /* 6310 * We could make use of zfs_for_each() to walk all datasets in 6311 * the system, but this would be very inefficient, especially 6312 * since we would have to linearly search /etc/mnttab for each 6313 * one. Instead, do one pass through /etc/mnttab looking for 6314 * zfs entries and call zfs_unmount() for each one. 6315 * 6316 * Things get a little tricky if the administrator has created 6317 * mountpoints beneath other ZFS filesystems. In this case, we 6318 * have to unmount the deepest filesystems first. To accomplish 6319 * this, we place all the mountpoints in an AVL tree sorted by 6320 * the special type (dataset name), and walk the result in 6321 * reverse to make sure to get any snapshots first. 6322 */ 6323 struct mnttab entry; 6324 uu_avl_pool_t *pool; 6325 uu_avl_t *tree; 6326 unshare_unmount_node_t *node; 6327 uu_avl_index_t idx; 6328 uu_avl_walk_t *walk; 6329 6330 if (argc != 0) { 6331 (void) fprintf(stderr, gettext("too many arguments\n")); 6332 usage(B_FALSE); 6333 } 6334 6335 if (((pool = uu_avl_pool_create("unmount_pool", 6336 sizeof (unshare_unmount_node_t), 6337 offsetof(unshare_unmount_node_t, un_avlnode), 6338 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6339 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6340 nomem(); 6341 6342 rewind(mnttab_file); 6343 while (getmntent(mnttab_file, &entry) == 0) { 6344 6345 /* ignore non-ZFS entries */ 6346 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6347 continue; 6348 6349 /* ignore snapshots */ 6350 if (strchr(entry.mnt_special, '@') != NULL) 6351 continue; 6352 6353 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6354 ZFS_TYPE_FILESYSTEM)) == NULL) { 6355 ret = 1; 6356 continue; 6357 } 6358 6359 switch (op) { 6360 case OP_SHARE: 6361 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6362 nfs_mnt_prop, 6363 sizeof (nfs_mnt_prop), 6364 NULL, NULL, 0, B_FALSE) == 0); 6365 if (strcmp(nfs_mnt_prop, "off") != 0) 6366 break; 6367 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6368 nfs_mnt_prop, 6369 sizeof (nfs_mnt_prop), 6370 NULL, NULL, 0, B_FALSE) == 0); 6371 if (strcmp(nfs_mnt_prop, "off") == 0) 6372 continue; 6373 break; 6374 case OP_MOUNT: 6375 /* Ignore legacy mounts */ 6376 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6377 nfs_mnt_prop, 6378 sizeof (nfs_mnt_prop), 6379 NULL, NULL, 0, B_FALSE) == 0); 6380 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6381 continue; 6382 /* Ignore canmount=noauto mounts */ 6383 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6384 ZFS_CANMOUNT_NOAUTO) 6385 continue; 6386 default: 6387 break; 6388 } 6389 6390 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6391 node->un_zhp = zhp; 6392 node->un_mountp = safe_strdup(entry.mnt_mountp); 6393 6394 uu_avl_node_init(node, &node->un_avlnode, pool); 6395 6396 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6397 uu_avl_insert(tree, node, idx); 6398 } else { 6399 zfs_close(node->un_zhp); 6400 free(node->un_mountp); 6401 free(node); 6402 } 6403 } 6404 6405 /* 6406 * Walk the AVL tree in reverse, unmounting each filesystem and 6407 * removing it from the AVL tree in the process. 6408 */ 6409 if ((walk = uu_avl_walk_start(tree, 6410 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6411 nomem(); 6412 6413 while ((node = uu_avl_walk_next(walk)) != NULL) { 6414 uu_avl_remove(tree, node); 6415 6416 switch (op) { 6417 case OP_SHARE: 6418 if (zfs_unshareall_bypath(node->un_zhp, 6419 node->un_mountp) != 0) 6420 ret = 1; 6421 break; 6422 6423 case OP_MOUNT: 6424 if (zfs_unmount(node->un_zhp, 6425 node->un_mountp, flags) != 0) 6426 ret = 1; 6427 break; 6428 } 6429 6430 zfs_close(node->un_zhp); 6431 free(node->un_mountp); 6432 free(node); 6433 } 6434 6435 uu_avl_walk_end(walk); 6436 uu_avl_destroy(tree); 6437 uu_avl_pool_destroy(pool); 6438 6439 } else { 6440 if (argc != 1) { 6441 if (argc == 0) 6442 (void) fprintf(stderr, 6443 gettext("missing filesystem argument\n")); 6444 else 6445 (void) fprintf(stderr, 6446 gettext("too many arguments\n")); 6447 usage(B_FALSE); 6448 } 6449 6450 /* 6451 * We have an argument, but it may be a full path or a ZFS 6452 * filesystem. Pass full paths off to unmount_path() (shared by 6453 * manual_unmount), otherwise open the filesystem and pass to 6454 * zfs_unmount(). 6455 */ 6456 if (argv[0][0] == '/') 6457 return (unshare_unmount_path(op, argv[0], 6458 flags, B_FALSE)); 6459 6460 if ((zhp = zfs_open(g_zfs, argv[0], 6461 ZFS_TYPE_FILESYSTEM)) == NULL) 6462 return (1); 6463 6464 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6465 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6466 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6467 NULL, 0, B_FALSE) == 0); 6468 6469 switch (op) { 6470 case OP_SHARE: 6471 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6472 nfs_mnt_prop, 6473 sizeof (nfs_mnt_prop), 6474 NULL, NULL, 0, B_FALSE) == 0); 6475 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6476 sharesmb, sizeof (sharesmb), NULL, NULL, 6477 0, B_FALSE) == 0); 6478 6479 if (strcmp(nfs_mnt_prop, "off") == 0 && 6480 strcmp(sharesmb, "off") == 0) { 6481 (void) fprintf(stderr, gettext("cannot " 6482 "unshare '%s': legacy share\n"), 6483 zfs_get_name(zhp)); 6484 (void) fprintf(stderr, gettext("use " 6485 "unshare(1M) to unshare this " 6486 "filesystem\n")); 6487 ret = 1; 6488 } else if (!zfs_is_shared(zhp)) { 6489 (void) fprintf(stderr, gettext("cannot " 6490 "unshare '%s': not currently " 6491 "shared\n"), zfs_get_name(zhp)); 6492 ret = 1; 6493 } else if (zfs_unshareall(zhp) != 0) { 6494 ret = 1; 6495 } 6496 break; 6497 6498 case OP_MOUNT: 6499 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6500 (void) fprintf(stderr, gettext("cannot " 6501 "unmount '%s': legacy " 6502 "mountpoint\n"), zfs_get_name(zhp)); 6503 (void) fprintf(stderr, gettext("use " 6504 "umount(1M) to unmount this " 6505 "filesystem\n")); 6506 ret = 1; 6507 } else if (!zfs_is_mounted(zhp, NULL)) { 6508 (void) fprintf(stderr, gettext("cannot " 6509 "unmount '%s': not currently " 6510 "mounted\n"), 6511 zfs_get_name(zhp)); 6512 ret = 1; 6513 } else if (zfs_unmountall(zhp, flags) != 0) { 6514 ret = 1; 6515 } 6516 break; 6517 } 6518 6519 zfs_close(zhp); 6520 } 6521 6522 return (ret); 6523 } 6524 6525 /* 6526 * zfs unmount -a 6527 * zfs unmount filesystem 6528 * 6529 * Unmount all filesystems, or a specific ZFS filesystem. 6530 */ 6531 static int 6532 zfs_do_unmount(int argc, char **argv) 6533 { 6534 return (unshare_unmount(OP_MOUNT, argc, argv)); 6535 } 6536 6537 /* 6538 * zfs unshare -a 6539 * zfs unshare filesystem 6540 * 6541 * Unshare all filesystems, or a specific ZFS filesystem. 6542 */ 6543 static int 6544 zfs_do_unshare(int argc, char **argv) 6545 { 6546 return (unshare_unmount(OP_SHARE, argc, argv)); 6547 } 6548 6549 /* 6550 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6551 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6552 */ 6553 static int 6554 manual_mount(int argc, char **argv) 6555 { 6556 zfs_handle_t *zhp; 6557 char mountpoint[ZFS_MAXPROPLEN]; 6558 char mntopts[MNT_LINE_MAX] = { '\0' }; 6559 int ret = 0; 6560 int c; 6561 int flags = 0; 6562 char *dataset, *path; 6563 6564 /* check options */ 6565 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6566 switch (c) { 6567 case 'o': 6568 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6569 break; 6570 case 'O': 6571 flags |= MS_OVERLAY; 6572 break; 6573 case 'm': 6574 flags |= MS_NOMNTTAB; 6575 break; 6576 case ':': 6577 (void) fprintf(stderr, gettext("missing argument for " 6578 "'%c' option\n"), optopt); 6579 usage(B_FALSE); 6580 break; 6581 case '?': 6582 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6583 optopt); 6584 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6585 "<path>\n")); 6586 return (2); 6587 } 6588 } 6589 6590 argc -= optind; 6591 argv += optind; 6592 6593 /* check that we only have two arguments */ 6594 if (argc != 2) { 6595 if (argc == 0) 6596 (void) fprintf(stderr, gettext("missing dataset " 6597 "argument\n")); 6598 else if (argc == 1) 6599 (void) fprintf(stderr, 6600 gettext("missing mountpoint argument\n")); 6601 else 6602 (void) fprintf(stderr, gettext("too many arguments\n")); 6603 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6604 return (2); 6605 } 6606 6607 dataset = argv[0]; 6608 path = argv[1]; 6609 6610 /* try to open the dataset */ 6611 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6612 return (1); 6613 6614 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6615 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6616 6617 /* check for legacy mountpoint and complain appropriately */ 6618 ret = 0; 6619 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6620 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6621 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6622 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6623 strerror(errno)); 6624 ret = 1; 6625 } 6626 } else { 6627 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6628 "mounted using 'mount -F zfs'\n"), dataset); 6629 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6630 "instead.\n"), path); 6631 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6632 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6633 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6634 "information.\n")); 6635 ret = 1; 6636 } 6637 6638 return (ret); 6639 } 6640 6641 /* 6642 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6643 * unmounts of non-legacy filesystems, as this is the dominant administrative 6644 * interface. 6645 */ 6646 static int 6647 manual_unmount(int argc, char **argv) 6648 { 6649 int flags = 0; 6650 int c; 6651 6652 /* check options */ 6653 while ((c = getopt(argc, argv, "f")) != -1) { 6654 switch (c) { 6655 case 'f': 6656 flags = MS_FORCE; 6657 break; 6658 case '?': 6659 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6660 optopt); 6661 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6662 "<path>\n")); 6663 return (2); 6664 } 6665 } 6666 6667 argc -= optind; 6668 argv += optind; 6669 6670 /* check arguments */ 6671 if (argc != 1) { 6672 if (argc == 0) 6673 (void) fprintf(stderr, gettext("missing path " 6674 "argument\n")); 6675 else 6676 (void) fprintf(stderr, gettext("too many arguments\n")); 6677 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6678 return (2); 6679 } 6680 6681 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6682 } 6683 6684 static int 6685 find_command_idx(char *command, int *idx) 6686 { 6687 int i; 6688 6689 for (i = 0; i < NCOMMAND; i++) { 6690 if (command_table[i].name == NULL) 6691 continue; 6692 6693 if (strcmp(command, command_table[i].name) == 0) { 6694 *idx = i; 6695 return (0); 6696 } 6697 } 6698 return (1); 6699 } 6700 6701 static int 6702 zfs_do_diff(int argc, char **argv) 6703 { 6704 zfs_handle_t *zhp; 6705 int flags = 0; 6706 char *tosnap = NULL; 6707 char *fromsnap = NULL; 6708 char *atp, *copy; 6709 int err = 0; 6710 int c; 6711 6712 while ((c = getopt(argc, argv, "FHt")) != -1) { 6713 switch (c) { 6714 case 'F': 6715 flags |= ZFS_DIFF_CLASSIFY; 6716 break; 6717 case 'H': 6718 flags |= ZFS_DIFF_PARSEABLE; 6719 break; 6720 case 't': 6721 flags |= ZFS_DIFF_TIMESTAMP; 6722 break; 6723 default: 6724 (void) fprintf(stderr, 6725 gettext("invalid option '%c'\n"), optopt); 6726 usage(B_FALSE); 6727 } 6728 } 6729 6730 argc -= optind; 6731 argv += optind; 6732 6733 if (argc < 1) { 6734 (void) fprintf(stderr, 6735 gettext("must provide at least one snapshot name\n")); 6736 usage(B_FALSE); 6737 } 6738 6739 if (argc > 2) { 6740 (void) fprintf(stderr, gettext("too many arguments\n")); 6741 usage(B_FALSE); 6742 } 6743 6744 fromsnap = argv[0]; 6745 tosnap = (argc == 2) ? argv[1] : NULL; 6746 6747 copy = NULL; 6748 if (*fromsnap != '@') 6749 copy = strdup(fromsnap); 6750 else if (tosnap) 6751 copy = strdup(tosnap); 6752 if (copy == NULL) 6753 usage(B_FALSE); 6754 6755 if (atp = strchr(copy, '@')) 6756 *atp = '\0'; 6757 6758 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6759 return (1); 6760 6761 free(copy); 6762 6763 /* 6764 * Ignore SIGPIPE so that the library can give us 6765 * information on any failure 6766 */ 6767 (void) sigignore(SIGPIPE); 6768 6769 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6770 6771 zfs_close(zhp); 6772 6773 return (err != 0); 6774 } 6775 6776 /* 6777 * zfs bookmark <fs@snap> <fs#bmark> 6778 * 6779 * Creates a bookmark with the given name from the given snapshot. 6780 */ 6781 static int 6782 zfs_do_bookmark(int argc, char **argv) 6783 { 6784 char snapname[ZFS_MAXNAMELEN]; 6785 zfs_handle_t *zhp; 6786 nvlist_t *nvl; 6787 int ret = 0; 6788 int c; 6789 6790 /* check options */ 6791 while ((c = getopt(argc, argv, "")) != -1) { 6792 switch (c) { 6793 case '?': 6794 (void) fprintf(stderr, 6795 gettext("invalid option '%c'\n"), optopt); 6796 goto usage; 6797 } 6798 } 6799 6800 argc -= optind; 6801 argv += optind; 6802 6803 /* check number of arguments */ 6804 if (argc < 1) { 6805 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6806 goto usage; 6807 } 6808 if (argc < 2) { 6809 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6810 goto usage; 6811 } 6812 6813 if (strchr(argv[1], '#') == NULL) { 6814 (void) fprintf(stderr, 6815 gettext("invalid bookmark name '%s' -- " 6816 "must contain a '#'\n"), argv[1]); 6817 goto usage; 6818 } 6819 6820 if (argv[0][0] == '@') { 6821 /* 6822 * Snapshot name begins with @. 6823 * Default to same fs as bookmark. 6824 */ 6825 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6826 *strchr(snapname, '#') = '\0'; 6827 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6828 } else { 6829 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6830 } 6831 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6832 if (zhp == NULL) 6833 goto usage; 6834 zfs_close(zhp); 6835 6836 6837 nvl = fnvlist_alloc(); 6838 fnvlist_add_string(nvl, argv[1], snapname); 6839 ret = lzc_bookmark(nvl, NULL); 6840 fnvlist_free(nvl); 6841 6842 if (ret != 0) { 6843 const char *err_msg; 6844 char errbuf[1024]; 6845 6846 (void) snprintf(errbuf, sizeof (errbuf), 6847 dgettext(TEXT_DOMAIN, 6848 "cannot create bookmark '%s'"), argv[1]); 6849 6850 switch (ret) { 6851 case EXDEV: 6852 err_msg = "bookmark is in a different pool"; 6853 break; 6854 case EEXIST: 6855 err_msg = "bookmark exists"; 6856 break; 6857 case EINVAL: 6858 err_msg = "invalid argument"; 6859 break; 6860 case ENOTSUP: 6861 err_msg = "bookmark feature not enabled"; 6862 break; 6863 case ENOSPC: 6864 err_msg = "out of space"; 6865 break; 6866 default: 6867 err_msg = "unknown error"; 6868 break; 6869 } 6870 (void) fprintf(stderr, "%s: %s\n", errbuf, 6871 dgettext(TEXT_DOMAIN, err_msg)); 6872 } 6873 6874 return (ret != 0); 6875 6876 usage: 6877 usage(B_FALSE); 6878 return (-1); 6879 } 6880 6881 int 6882 main(int argc, char **argv) 6883 { 6884 int ret = 0; 6885 int i; 6886 char *progname; 6887 char *cmdname; 6888 6889 (void) setlocale(LC_ALL, ""); 6890 (void) textdomain(TEXT_DOMAIN); 6891 6892 opterr = 0; 6893 6894 if ((g_zfs = libzfs_init()) == NULL) { 6895 (void) fprintf(stderr, gettext("internal error: failed to " 6896 "initialize ZFS library\n")); 6897 return (1); 6898 } 6899 6900 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6901 6902 libzfs_print_on_error(g_zfs, B_TRUE); 6903 6904 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6905 (void) fprintf(stderr, gettext("internal error: unable to " 6906 "open %s\n"), MNTTAB); 6907 return (1); 6908 } 6909 6910 /* 6911 * This command also doubles as the /etc/fs mount and unmount program. 6912 * Determine if we should take this behavior based on argv[0]. 6913 */ 6914 progname = basename(argv[0]); 6915 if (strcmp(progname, "mount") == 0) { 6916 ret = manual_mount(argc, argv); 6917 } else if (strcmp(progname, "umount") == 0) { 6918 ret = manual_unmount(argc, argv); 6919 } else { 6920 /* 6921 * Make sure the user has specified some command. 6922 */ 6923 if (argc < 2) { 6924 (void) fprintf(stderr, gettext("missing command\n")); 6925 usage(B_FALSE); 6926 } 6927 6928 cmdname = argv[1]; 6929 6930 /* 6931 * The 'umount' command is an alias for 'unmount' 6932 */ 6933 if (strcmp(cmdname, "umount") == 0) 6934 cmdname = "unmount"; 6935 6936 /* 6937 * The 'recv' command is an alias for 'receive' 6938 */ 6939 if (strcmp(cmdname, "recv") == 0) 6940 cmdname = "receive"; 6941 6942 /* 6943 * The 'snap' command is an alias for 'snapshot' 6944 */ 6945 if (strcmp(cmdname, "snap") == 0) 6946 cmdname = "snapshot"; 6947 6948 /* 6949 * Special case '-?' 6950 */ 6951 if (strcmp(cmdname, "-?") == 0) 6952 usage(B_TRUE); 6953 6954 /* 6955 * Run the appropriate command. 6956 */ 6957 libzfs_mnttab_cache(g_zfs, B_TRUE); 6958 if (find_command_idx(cmdname, &i) == 0) { 6959 current_command = &command_table[i]; 6960 ret = command_table[i].func(argc - 1, argv + 1); 6961 } else if (strchr(cmdname, '=') != NULL) { 6962 verify(find_command_idx("set", &i) == 0); 6963 current_command = &command_table[i]; 6964 ret = command_table[i].func(argc, argv); 6965 } else { 6966 (void) fprintf(stderr, gettext("unrecognized " 6967 "command '%s'\n"), cmdname); 6968 usage(B_FALSE); 6969 } 6970 libzfs_mnttab_cache(g_zfs, B_FALSE); 6971 } 6972 6973 (void) fclose(mnttab_file); 6974 6975 if (ret == 0 && log_history) 6976 (void) zpool_log_history(g_zfs, history_str); 6977 6978 libzfs_fini(g_zfs); 6979 6980 /* 6981 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6982 * for the purposes of running ::findleaks. 6983 */ 6984 if (getenv("ZFS_ABORT") != NULL) { 6985 (void) printf("dumping core by request\n"); 6986 abort(); 6987 } 6988 6989 return (ret); 6990 } 6991