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 (c) 2014 Integros [integros.com] 29 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 30 * Copyright 2016 Nexenta Systems, Inc. 31 */ 32 33 #include <assert.h> 34 #include <ctype.h> 35 #include <errno.h> 36 #include <libgen.h> 37 #include <libintl.h> 38 #include <libuutil.h> 39 #include <libnvpair.h> 40 #include <locale.h> 41 #include <stddef.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <strings.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <zone.h> 48 #include <grp.h> 49 #include <pwd.h> 50 #include <signal.h> 51 #include <sys/list.h> 52 #include <sys/mkdev.h> 53 #include <sys/mntent.h> 54 #include <sys/mnttab.h> 55 #include <sys/mount.h> 56 #include <sys/stat.h> 57 #include <sys/fs/zfs.h> 58 #include <sys/types.h> 59 #include <time.h> 60 61 #include <libzfs.h> 62 #include <libzfs_core.h> 63 #include <zfs_prop.h> 64 #include <zfs_deleg.h> 65 #include <libuutil.h> 66 #include <aclutils.h> 67 #include <directory.h> 68 #include <idmap.h> 69 70 #include "zfs_iter.h" 71 #include "zfs_util.h" 72 #include "zfs_comutil.h" 73 74 libzfs_handle_t *g_zfs; 75 76 static FILE *mnttab_file; 77 static char history_str[HIS_MAX_RECORD_LEN]; 78 static boolean_t log_history = B_TRUE; 79 80 static int zfs_do_clone(int argc, char **argv); 81 static int zfs_do_create(int argc, char **argv); 82 static int zfs_do_destroy(int argc, char **argv); 83 static int zfs_do_get(int argc, char **argv); 84 static int zfs_do_inherit(int argc, char **argv); 85 static int zfs_do_list(int argc, char **argv); 86 static int zfs_do_mount(int argc, char **argv); 87 static int zfs_do_rename(int argc, char **argv); 88 static int zfs_do_rollback(int argc, char **argv); 89 static int zfs_do_set(int argc, char **argv); 90 static int zfs_do_upgrade(int argc, char **argv); 91 static int zfs_do_snapshot(int argc, char **argv); 92 static int zfs_do_unmount(int argc, char **argv); 93 static int zfs_do_share(int argc, char **argv); 94 static int zfs_do_unshare(int argc, char **argv); 95 static int zfs_do_send(int argc, char **argv); 96 static int zfs_do_receive(int argc, char **argv); 97 static int zfs_do_promote(int argc, char **argv); 98 static int zfs_do_userspace(int argc, char **argv); 99 static int zfs_do_allow(int argc, char **argv); 100 static int zfs_do_unallow(int argc, char **argv); 101 static int zfs_do_hold(int argc, char **argv); 102 static int zfs_do_holds(int argc, char **argv); 103 static int zfs_do_release(int argc, char **argv); 104 static int zfs_do_diff(int argc, char **argv); 105 static int zfs_do_bookmark(int argc, char **argv); 106 107 /* 108 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 109 */ 110 111 #ifdef DEBUG 112 const char * 113 _umem_debug_init(void) 114 { 115 return ("default,verbose"); /* $UMEM_DEBUG setting */ 116 } 117 118 const char * 119 _umem_logging_init(void) 120 { 121 return ("fail,contents"); /* $UMEM_LOGGING setting */ 122 } 123 #endif 124 125 typedef enum { 126 HELP_CLONE, 127 HELP_CREATE, 128 HELP_DESTROY, 129 HELP_GET, 130 HELP_INHERIT, 131 HELP_UPGRADE, 132 HELP_LIST, 133 HELP_MOUNT, 134 HELP_PROMOTE, 135 HELP_RECEIVE, 136 HELP_RENAME, 137 HELP_ROLLBACK, 138 HELP_SEND, 139 HELP_SET, 140 HELP_SHARE, 141 HELP_SNAPSHOT, 142 HELP_UNMOUNT, 143 HELP_UNSHARE, 144 HELP_ALLOW, 145 HELP_UNALLOW, 146 HELP_USERSPACE, 147 HELP_GROUPSPACE, 148 HELP_HOLD, 149 HELP_HOLDS, 150 HELP_RELEASE, 151 HELP_DIFF, 152 HELP_BOOKMARK, 153 } zfs_help_t; 154 155 typedef struct zfs_command { 156 const char *name; 157 int (*func)(int argc, char **argv); 158 zfs_help_t usage; 159 } zfs_command_t; 160 161 /* 162 * Master command table. Each ZFS command has a name, associated function, and 163 * usage message. The usage messages need to be internationalized, so we have 164 * to have a function to return the usage message based on a command index. 165 * 166 * These commands are organized according to how they are displayed in the usage 167 * message. An empty command (one with a NULL name) indicates an empty line in 168 * the generic usage message. 169 */ 170 static zfs_command_t command_table[] = { 171 { "create", zfs_do_create, HELP_CREATE }, 172 { "destroy", zfs_do_destroy, HELP_DESTROY }, 173 { NULL }, 174 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 175 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 176 { "clone", zfs_do_clone, HELP_CLONE }, 177 { "promote", zfs_do_promote, HELP_PROMOTE }, 178 { "rename", zfs_do_rename, HELP_RENAME }, 179 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 180 { NULL }, 181 { "list", zfs_do_list, HELP_LIST }, 182 { NULL }, 183 { "set", zfs_do_set, HELP_SET }, 184 { "get", zfs_do_get, HELP_GET }, 185 { "inherit", zfs_do_inherit, HELP_INHERIT }, 186 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 187 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 188 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 189 { NULL }, 190 { "mount", zfs_do_mount, HELP_MOUNT }, 191 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 192 { "share", zfs_do_share, HELP_SHARE }, 193 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 194 { NULL }, 195 { "send", zfs_do_send, HELP_SEND }, 196 { "receive", zfs_do_receive, HELP_RECEIVE }, 197 { NULL }, 198 { "allow", zfs_do_allow, HELP_ALLOW }, 199 { NULL }, 200 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 201 { NULL }, 202 { "hold", zfs_do_hold, HELP_HOLD }, 203 { "holds", zfs_do_holds, HELP_HOLDS }, 204 { "release", zfs_do_release, HELP_RELEASE }, 205 { "diff", zfs_do_diff, HELP_DIFF }, 206 }; 207 208 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 209 210 zfs_command_t *current_command; 211 212 static const char * 213 get_usage(zfs_help_t idx) 214 { 215 switch (idx) { 216 case HELP_CLONE: 217 return (gettext("\tclone [-p] [-o property=value] ... " 218 "<snapshot> <filesystem|volume>\n")); 219 case HELP_CREATE: 220 return (gettext("\tcreate [-p] [-o property=value] ... " 221 "<filesystem>\n" 222 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 223 "-V <size> <volume>\n")); 224 case HELP_DESTROY: 225 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 226 "\tdestroy [-dnpRrv] " 227 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 228 "\tdestroy <filesystem|volume>#<bookmark>\n")); 229 case HELP_GET: 230 return (gettext("\tget [-rHp] [-d max] " 231 "[-o \"all\" | field[,...]]\n" 232 "\t [-t type[,...]] [-s source[,...]]\n" 233 "\t <\"all\" | property[,...]> " 234 "[filesystem|volume|snapshot] ...\n")); 235 case HELP_INHERIT: 236 return (gettext("\tinherit [-rS] <property> " 237 "<filesystem|volume|snapshot> ...\n")); 238 case HELP_UPGRADE: 239 return (gettext("\tupgrade [-v]\n" 240 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 241 case HELP_LIST: 242 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 243 "[-s property]...\n\t [-S property]... [-t type[,...]] " 244 "[filesystem|volume|snapshot] ...\n")); 245 case HELP_MOUNT: 246 return (gettext("\tmount\n" 247 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 248 case HELP_PROMOTE: 249 return (gettext("\tpromote <clone-filesystem>\n")); 250 case HELP_RECEIVE: 251 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 252 "snapshot>\n" 253 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 254 "<filesystem>\n" 255 "\treceive -A <filesystem|volume>\n")); 256 case HELP_RENAME: 257 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 258 "<filesystem|volume|snapshot>\n" 259 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 260 "\trename -r <snapshot> <snapshot>\n")); 261 case HELP_ROLLBACK: 262 return (gettext("\trollback [-rRf] <snapshot>\n")); 263 case HELP_SEND: 264 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 265 "<snapshot>\n" 266 "\tsend [-Le] [-i snapshot|bookmark] " 267 "<filesystem|volume|snapshot>\n" 268 "\tsend [-nvPe] -t <receive_resume_token>\n")); 269 case HELP_SET: 270 return (gettext("\tset <property=value> ... " 271 "<filesystem|volume|snapshot> ...\n")); 272 case HELP_SHARE: 273 return (gettext("\tshare <-a | filesystem>\n")); 274 case HELP_SNAPSHOT: 275 return (gettext("\tsnapshot [-r] [-o property=value] ... " 276 "<filesystem|volume>@<snap> ...\n")); 277 case HELP_UNMOUNT: 278 return (gettext("\tunmount [-f] " 279 "<-a | filesystem|mountpoint>\n")); 280 case HELP_UNSHARE: 281 return (gettext("\tunshare " 282 "<-a | filesystem|mountpoint>\n")); 283 case HELP_ALLOW: 284 return (gettext("\tallow <filesystem|volume>\n" 285 "\tallow [-ldug] " 286 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 287 "\t <filesystem|volume>\n" 288 "\tallow [-ld] -e <perm|@setname>[,...] " 289 "<filesystem|volume>\n" 290 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 291 "\tallow -s @setname <perm|@setname>[,...] " 292 "<filesystem|volume>\n")); 293 case HELP_UNALLOW: 294 return (gettext("\tunallow [-rldug] " 295 "<\"everyone\"|user|group>[,...]\n" 296 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 297 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 298 "<filesystem|volume>\n" 299 "\tunallow [-r] -c [<perm|@setname>[,...]] " 300 "<filesystem|volume>\n" 301 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 302 "<filesystem|volume>\n")); 303 case HELP_USERSPACE: 304 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 305 "[-s field] ...\n" 306 "\t [-S field] ... [-t type[,...]] " 307 "<filesystem|snapshot>\n")); 308 case HELP_GROUPSPACE: 309 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 310 "[-s field] ...\n" 311 "\t [-S field] ... [-t type[,...]] " 312 "<filesystem|snapshot>\n")); 313 case HELP_HOLD: 314 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 315 case HELP_HOLDS: 316 return (gettext("\tholds [-r] <snapshot> ...\n")); 317 case HELP_RELEASE: 318 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 319 case HELP_DIFF: 320 return (gettext("\tdiff [-FHt] <snapshot> " 321 "[snapshot|filesystem]\n")); 322 case HELP_BOOKMARK: 323 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 324 } 325 326 abort(); 327 /* NOTREACHED */ 328 } 329 330 void 331 nomem(void) 332 { 333 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 334 exit(1); 335 } 336 337 /* 338 * Utility function to guarantee malloc() success. 339 */ 340 341 void * 342 safe_malloc(size_t size) 343 { 344 void *data; 345 346 if ((data = calloc(1, size)) == NULL) 347 nomem(); 348 349 return (data); 350 } 351 352 static char * 353 safe_strdup(char *str) 354 { 355 char *dupstr = strdup(str); 356 357 if (dupstr == NULL) 358 nomem(); 359 360 return (dupstr); 361 } 362 363 /* 364 * Callback routine that will print out information for each of 365 * the properties. 366 */ 367 static int 368 usage_prop_cb(int prop, void *cb) 369 { 370 FILE *fp = cb; 371 372 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 373 374 if (zfs_prop_readonly(prop)) 375 (void) fprintf(fp, " NO "); 376 else 377 (void) fprintf(fp, "YES "); 378 379 if (zfs_prop_inheritable(prop)) 380 (void) fprintf(fp, " YES "); 381 else 382 (void) fprintf(fp, " NO "); 383 384 if (zfs_prop_values(prop) == NULL) 385 (void) fprintf(fp, "-\n"); 386 else 387 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 388 389 return (ZPROP_CONT); 390 } 391 392 /* 393 * Display usage message. If we're inside a command, display only the usage for 394 * that command. Otherwise, iterate over the entire command table and display 395 * a complete usage message. 396 */ 397 static void 398 usage(boolean_t requested) 399 { 400 int i; 401 boolean_t show_properties = B_FALSE; 402 FILE *fp = requested ? stdout : stderr; 403 404 if (current_command == NULL) { 405 406 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 407 (void) fprintf(fp, 408 gettext("where 'command' is one of the following:\n\n")); 409 410 for (i = 0; i < NCOMMAND; i++) { 411 if (command_table[i].name == NULL) 412 (void) fprintf(fp, "\n"); 413 else 414 (void) fprintf(fp, "%s", 415 get_usage(command_table[i].usage)); 416 } 417 418 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 419 "pool/[dataset/]*dataset[@name]\n")); 420 } else { 421 (void) fprintf(fp, gettext("usage:\n")); 422 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 423 } 424 425 if (current_command != NULL && 426 (strcmp(current_command->name, "set") == 0 || 427 strcmp(current_command->name, "get") == 0 || 428 strcmp(current_command->name, "inherit") == 0 || 429 strcmp(current_command->name, "list") == 0)) 430 show_properties = B_TRUE; 431 432 if (show_properties) { 433 (void) fprintf(fp, 434 gettext("\nThe following properties are supported:\n")); 435 436 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 437 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 438 439 /* Iterate over all properties */ 440 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 441 ZFS_TYPE_DATASET); 442 443 (void) fprintf(fp, "\t%-15s ", "userused@..."); 444 (void) fprintf(fp, " NO NO <size>\n"); 445 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 446 (void) fprintf(fp, " NO NO <size>\n"); 447 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 448 (void) fprintf(fp, "YES NO <size> | none\n"); 449 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 450 (void) fprintf(fp, "YES NO <size> | none\n"); 451 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 452 (void) fprintf(fp, " NO NO <size>\n"); 453 454 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 455 "with standard units such as K, M, G, etc.\n")); 456 (void) fprintf(fp, gettext("\nUser-defined properties can " 457 "be specified by using a name containing a colon (:).\n")); 458 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 459 "properties must be appended with\n" 460 "a user or group specifier of one of these forms:\n" 461 " POSIX name (eg: \"matt\")\n" 462 " POSIX id (eg: \"126829\")\n" 463 " SMB name@domain (eg: \"matt@sun\")\n" 464 " SMB SID (eg: \"S-1-234-567-89\")\n")); 465 } else { 466 (void) fprintf(fp, 467 gettext("\nFor the property list, run: %s\n"), 468 "zfs set|get"); 469 (void) fprintf(fp, 470 gettext("\nFor the delegated permission list, run: %s\n"), 471 "zfs allow|unallow"); 472 } 473 474 /* 475 * See comments at end of main(). 476 */ 477 if (getenv("ZFS_ABORT") != NULL) { 478 (void) printf("dumping core by request\n"); 479 abort(); 480 } 481 482 exit(requested ? 0 : 2); 483 } 484 485 /* 486 * Take a property=value argument string and add it to the given nvlist. 487 * Modifies the argument inplace. 488 */ 489 static int 490 parseprop(nvlist_t *props, char *propname) 491 { 492 char *propval, *strval; 493 494 if ((propval = strchr(propname, '=')) == NULL) { 495 (void) fprintf(stderr, gettext("missing " 496 "'=' for property=value argument\n")); 497 return (-1); 498 } 499 *propval = '\0'; 500 propval++; 501 if (nvlist_lookup_string(props, propname, &strval) == 0) { 502 (void) fprintf(stderr, gettext("property '%s' " 503 "specified multiple times\n"), propname); 504 return (-1); 505 } 506 if (nvlist_add_string(props, propname, propval) != 0) 507 nomem(); 508 return (0); 509 } 510 511 static int 512 parse_depth(char *opt, int *flags) 513 { 514 char *tmp; 515 int depth; 516 517 depth = (int)strtol(opt, &tmp, 0); 518 if (*tmp) { 519 (void) fprintf(stderr, 520 gettext("%s is not an integer\n"), optarg); 521 usage(B_FALSE); 522 } 523 if (depth < 0) { 524 (void) fprintf(stderr, 525 gettext("Depth can not be negative.\n")); 526 usage(B_FALSE); 527 } 528 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 529 return (depth); 530 } 531 532 #define PROGRESS_DELAY 2 /* seconds */ 533 534 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"; 535 static time_t pt_begin; 536 static char *pt_header = NULL; 537 static boolean_t pt_shown; 538 539 static void 540 start_progress_timer(void) 541 { 542 pt_begin = time(NULL) + PROGRESS_DELAY; 543 pt_shown = B_FALSE; 544 } 545 546 static void 547 set_progress_header(char *header) 548 { 549 assert(pt_header == NULL); 550 pt_header = safe_strdup(header); 551 if (pt_shown) { 552 (void) printf("%s: ", header); 553 (void) fflush(stdout); 554 } 555 } 556 557 static void 558 update_progress(char *update) 559 { 560 if (!pt_shown && time(NULL) > pt_begin) { 561 int len = strlen(update); 562 563 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 564 pt_reverse); 565 (void) fflush(stdout); 566 pt_shown = B_TRUE; 567 } else if (pt_shown) { 568 int len = strlen(update); 569 570 (void) printf("%s%*.*s", update, len, len, pt_reverse); 571 (void) fflush(stdout); 572 } 573 } 574 575 static void 576 finish_progress(char *done) 577 { 578 if (pt_shown) { 579 (void) printf("%s\n", done); 580 (void) fflush(stdout); 581 } 582 free(pt_header); 583 pt_header = NULL; 584 } 585 586 /* 587 * Check if the dataset is mountable and should be automatically mounted. 588 */ 589 static boolean_t 590 should_auto_mount(zfs_handle_t *zhp) 591 { 592 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 593 return (B_FALSE); 594 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 595 } 596 597 /* 598 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 599 * 600 * Given an existing dataset, create a writable copy whose initial contents 601 * are the same as the source. The newly created dataset maintains a 602 * dependency on the original; the original cannot be destroyed so long as 603 * the clone exists. 604 * 605 * The '-p' flag creates all the non-existing ancestors of the target first. 606 */ 607 static int 608 zfs_do_clone(int argc, char **argv) 609 { 610 zfs_handle_t *zhp = NULL; 611 boolean_t parents = B_FALSE; 612 nvlist_t *props; 613 int ret = 0; 614 int c; 615 616 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 617 nomem(); 618 619 /* check options */ 620 while ((c = getopt(argc, argv, "o:p")) != -1) { 621 switch (c) { 622 case 'o': 623 if (parseprop(props, optarg) != 0) 624 return (1); 625 break; 626 case 'p': 627 parents = B_TRUE; 628 break; 629 case '?': 630 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 631 optopt); 632 goto usage; 633 } 634 } 635 636 argc -= optind; 637 argv += optind; 638 639 /* check number of arguments */ 640 if (argc < 1) { 641 (void) fprintf(stderr, gettext("missing source dataset " 642 "argument\n")); 643 goto usage; 644 } 645 if (argc < 2) { 646 (void) fprintf(stderr, gettext("missing target dataset " 647 "argument\n")); 648 goto usage; 649 } 650 if (argc > 2) { 651 (void) fprintf(stderr, gettext("too many arguments\n")); 652 goto usage; 653 } 654 655 /* open the source dataset */ 656 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 657 return (1); 658 659 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 660 ZFS_TYPE_VOLUME)) { 661 /* 662 * Now create the ancestors of the target dataset. If the 663 * target already exists and '-p' option was used we should not 664 * complain. 665 */ 666 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 667 ZFS_TYPE_VOLUME)) 668 return (0); 669 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 670 return (1); 671 } 672 673 /* pass to libzfs */ 674 ret = zfs_clone(zhp, argv[1], props); 675 676 /* create the mountpoint if necessary */ 677 if (ret == 0) { 678 zfs_handle_t *clone; 679 680 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 681 if (clone != NULL) { 682 /* 683 * If the user doesn't want the dataset 684 * automatically mounted, then skip the mount/share 685 * step. 686 */ 687 if (should_auto_mount(clone)) { 688 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 689 (void) fprintf(stderr, gettext("clone " 690 "successfully created, " 691 "but not mounted\n")); 692 } else if ((ret = zfs_share(clone)) != 0) { 693 (void) fprintf(stderr, gettext("clone " 694 "successfully created, " 695 "but not shared\n")); 696 } 697 } 698 zfs_close(clone); 699 } 700 } 701 702 zfs_close(zhp); 703 nvlist_free(props); 704 705 return (!!ret); 706 707 usage: 708 if (zhp) 709 zfs_close(zhp); 710 nvlist_free(props); 711 usage(B_FALSE); 712 return (-1); 713 } 714 715 /* 716 * zfs create [-p] [-o prop=value] ... fs 717 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 718 * 719 * Create a new dataset. This command can be used to create filesystems 720 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 721 * For volumes, the user must specify a size to be used. 722 * 723 * The '-s' flag applies only to volumes, and indicates that we should not try 724 * to set the reservation for this volume. By default we set a reservation 725 * equal to the size for any volume. For pools with SPA_VERSION >= 726 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 727 * 728 * The '-p' flag creates all the non-existing ancestors of the target first. 729 */ 730 static int 731 zfs_do_create(int argc, char **argv) 732 { 733 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 734 zfs_handle_t *zhp = NULL; 735 uint64_t volsize = 0; 736 int c; 737 boolean_t noreserve = B_FALSE; 738 boolean_t bflag = B_FALSE; 739 boolean_t parents = B_FALSE; 740 int ret = 1; 741 nvlist_t *props; 742 uint64_t intval; 743 744 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 745 nomem(); 746 747 /* check options */ 748 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 749 switch (c) { 750 case 'V': 751 type = ZFS_TYPE_VOLUME; 752 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 753 (void) fprintf(stderr, gettext("bad volume " 754 "size '%s': %s\n"), optarg, 755 libzfs_error_description(g_zfs)); 756 goto error; 757 } 758 759 if (nvlist_add_uint64(props, 760 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 761 nomem(); 762 volsize = intval; 763 break; 764 case 'p': 765 parents = B_TRUE; 766 break; 767 case 'b': 768 bflag = B_TRUE; 769 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 770 (void) fprintf(stderr, gettext("bad volume " 771 "block size '%s': %s\n"), optarg, 772 libzfs_error_description(g_zfs)); 773 goto error; 774 } 775 776 if (nvlist_add_uint64(props, 777 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 778 intval) != 0) 779 nomem(); 780 break; 781 case 'o': 782 if (parseprop(props, optarg) != 0) 783 goto error; 784 break; 785 case 's': 786 noreserve = B_TRUE; 787 break; 788 case ':': 789 (void) fprintf(stderr, gettext("missing size " 790 "argument\n")); 791 goto badusage; 792 case '?': 793 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 794 optopt); 795 goto badusage; 796 } 797 } 798 799 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 800 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 801 "used when creating a volume\n")); 802 goto badusage; 803 } 804 805 argc -= optind; 806 argv += optind; 807 808 /* check number of arguments */ 809 if (argc == 0) { 810 (void) fprintf(stderr, gettext("missing %s argument\n"), 811 zfs_type_to_name(type)); 812 goto badusage; 813 } 814 if (argc > 1) { 815 (void) fprintf(stderr, gettext("too many arguments\n")); 816 goto badusage; 817 } 818 819 if (type == ZFS_TYPE_VOLUME && !noreserve) { 820 zpool_handle_t *zpool_handle; 821 nvlist_t *real_props = NULL; 822 uint64_t spa_version; 823 char *p; 824 zfs_prop_t resv_prop; 825 char *strval; 826 char msg[1024]; 827 828 if ((p = strchr(argv[0], '/')) != NULL) 829 *p = '\0'; 830 zpool_handle = zpool_open(g_zfs, argv[0]); 831 if (p != NULL) 832 *p = '/'; 833 if (zpool_handle == NULL) 834 goto error; 835 spa_version = zpool_get_prop_int(zpool_handle, 836 ZPOOL_PROP_VERSION, NULL); 837 if (spa_version >= SPA_VERSION_REFRESERVATION) 838 resv_prop = ZFS_PROP_REFRESERVATION; 839 else 840 resv_prop = ZFS_PROP_RESERVATION; 841 842 (void) snprintf(msg, sizeof (msg), 843 gettext("cannot create '%s'"), argv[0]); 844 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 845 props, 0, NULL, zpool_handle, msg)) == NULL) { 846 zpool_close(zpool_handle); 847 goto error; 848 } 849 zpool_close(zpool_handle); 850 851 volsize = zvol_volsize_to_reservation(volsize, real_props); 852 nvlist_free(real_props); 853 854 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 855 &strval) != 0) { 856 if (nvlist_add_uint64(props, 857 zfs_prop_to_name(resv_prop), volsize) != 0) { 858 nvlist_free(props); 859 nomem(); 860 } 861 } 862 } 863 864 if (parents && zfs_name_valid(argv[0], type)) { 865 /* 866 * Now create the ancestors of target dataset. If the target 867 * already exists and '-p' option was used we should not 868 * complain. 869 */ 870 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 871 ret = 0; 872 goto error; 873 } 874 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 875 goto error; 876 } 877 878 /* pass to libzfs */ 879 if (zfs_create(g_zfs, argv[0], type, props) != 0) 880 goto error; 881 882 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 883 goto error; 884 885 ret = 0; 886 887 /* 888 * Mount and/or share the new filesystem as appropriate. We provide a 889 * verbose error message to let the user know that their filesystem was 890 * in fact created, even if we failed to mount or share it. 891 * If the user doesn't want the dataset automatically mounted, 892 * then skip the mount/share step altogether. 893 */ 894 if (should_auto_mount(zhp)) { 895 if (zfs_mount(zhp, NULL, 0) != 0) { 896 (void) fprintf(stderr, gettext("filesystem " 897 "successfully created, but not mounted\n")); 898 ret = 1; 899 } else if (zfs_share(zhp) != 0) { 900 (void) fprintf(stderr, gettext("filesystem " 901 "successfully created, but not shared\n")); 902 ret = 1; 903 } 904 } 905 906 error: 907 if (zhp) 908 zfs_close(zhp); 909 nvlist_free(props); 910 return (ret); 911 badusage: 912 nvlist_free(props); 913 usage(B_FALSE); 914 return (2); 915 } 916 917 /* 918 * zfs destroy [-rRf] <fs, vol> 919 * zfs destroy [-rRd] <snap> 920 * 921 * -r Recursively destroy all children 922 * -R Recursively destroy all dependents, including clones 923 * -f Force unmounting of any dependents 924 * -d If we can't destroy now, mark for deferred destruction 925 * 926 * Destroys the given dataset. By default, it will unmount any filesystems, 927 * and refuse to destroy a dataset that has any dependents. A dependent can 928 * either be a child, or a clone of a child. 929 */ 930 typedef struct destroy_cbdata { 931 boolean_t cb_first; 932 boolean_t cb_force; 933 boolean_t cb_recurse; 934 boolean_t cb_error; 935 boolean_t cb_doclones; 936 zfs_handle_t *cb_target; 937 boolean_t cb_defer_destroy; 938 boolean_t cb_verbose; 939 boolean_t cb_parsable; 940 boolean_t cb_dryrun; 941 nvlist_t *cb_nvl; 942 nvlist_t *cb_batchedsnaps; 943 944 /* first snap in contiguous run */ 945 char *cb_firstsnap; 946 /* previous snap in contiguous run */ 947 char *cb_prevsnap; 948 int64_t cb_snapused; 949 char *cb_snapspec; 950 char *cb_bookmark; 951 } destroy_cbdata_t; 952 953 /* 954 * Check for any dependents based on the '-r' or '-R' flags. 955 */ 956 static int 957 destroy_check_dependent(zfs_handle_t *zhp, void *data) 958 { 959 destroy_cbdata_t *cbp = data; 960 const char *tname = zfs_get_name(cbp->cb_target); 961 const char *name = zfs_get_name(zhp); 962 963 if (strncmp(tname, name, strlen(tname)) == 0 && 964 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 965 /* 966 * This is a direct descendant, not a clone somewhere else in 967 * the hierarchy. 968 */ 969 if (cbp->cb_recurse) 970 goto out; 971 972 if (cbp->cb_first) { 973 (void) fprintf(stderr, gettext("cannot destroy '%s': " 974 "%s has children\n"), 975 zfs_get_name(cbp->cb_target), 976 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 977 (void) fprintf(stderr, gettext("use '-r' to destroy " 978 "the following datasets:\n")); 979 cbp->cb_first = B_FALSE; 980 cbp->cb_error = B_TRUE; 981 } 982 983 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 984 } else { 985 /* 986 * This is a clone. We only want to report this if the '-r' 987 * wasn't specified, or the target is a snapshot. 988 */ 989 if (!cbp->cb_recurse && 990 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 991 goto out; 992 993 if (cbp->cb_first) { 994 (void) fprintf(stderr, gettext("cannot destroy '%s': " 995 "%s has dependent clones\n"), 996 zfs_get_name(cbp->cb_target), 997 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 998 (void) fprintf(stderr, gettext("use '-R' to destroy " 999 "the following datasets:\n")); 1000 cbp->cb_first = B_FALSE; 1001 cbp->cb_error = B_TRUE; 1002 cbp->cb_dryrun = B_TRUE; 1003 } 1004 1005 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1006 } 1007 1008 out: 1009 zfs_close(zhp); 1010 return (0); 1011 } 1012 1013 static int 1014 destroy_callback(zfs_handle_t *zhp, void *data) 1015 { 1016 destroy_cbdata_t *cb = data; 1017 const char *name = zfs_get_name(zhp); 1018 1019 if (cb->cb_verbose) { 1020 if (cb->cb_parsable) { 1021 (void) printf("destroy\t%s\n", name); 1022 } else if (cb->cb_dryrun) { 1023 (void) printf(gettext("would destroy %s\n"), 1024 name); 1025 } else { 1026 (void) printf(gettext("will destroy %s\n"), 1027 name); 1028 } 1029 } 1030 1031 /* 1032 * Ignore pools (which we've already flagged as an error before getting 1033 * here). 1034 */ 1035 if (strchr(zfs_get_name(zhp), '/') == NULL && 1036 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1037 zfs_close(zhp); 1038 return (0); 1039 } 1040 if (cb->cb_dryrun) { 1041 zfs_close(zhp); 1042 return (0); 1043 } 1044 1045 /* 1046 * We batch up all contiguous snapshots (even of different 1047 * filesystems) and destroy them with one ioctl. We can't 1048 * simply do all snap deletions and then all fs deletions, 1049 * because we must delete a clone before its origin. 1050 */ 1051 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1052 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1053 } else { 1054 int error = zfs_destroy_snaps_nvl(g_zfs, 1055 cb->cb_batchedsnaps, B_FALSE); 1056 fnvlist_free(cb->cb_batchedsnaps); 1057 cb->cb_batchedsnaps = fnvlist_alloc(); 1058 1059 if (error != 0 || 1060 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1061 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1062 zfs_close(zhp); 1063 return (-1); 1064 } 1065 } 1066 1067 zfs_close(zhp); 1068 return (0); 1069 } 1070 1071 static int 1072 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1073 { 1074 destroy_cbdata_t *cb = arg; 1075 const char *name = zfs_get_name(zhp); 1076 int err = 0; 1077 1078 if (nvlist_exists(cb->cb_nvl, name)) { 1079 if (cb->cb_firstsnap == NULL) 1080 cb->cb_firstsnap = strdup(name); 1081 if (cb->cb_prevsnap != NULL) 1082 free(cb->cb_prevsnap); 1083 /* this snap continues the current range */ 1084 cb->cb_prevsnap = strdup(name); 1085 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1086 nomem(); 1087 if (cb->cb_verbose) { 1088 if (cb->cb_parsable) { 1089 (void) printf("destroy\t%s\n", name); 1090 } else if (cb->cb_dryrun) { 1091 (void) printf(gettext("would destroy %s\n"), 1092 name); 1093 } else { 1094 (void) printf(gettext("will destroy %s\n"), 1095 name); 1096 } 1097 } 1098 } else if (cb->cb_firstsnap != NULL) { 1099 /* end of this range */ 1100 uint64_t used = 0; 1101 err = lzc_snaprange_space(cb->cb_firstsnap, 1102 cb->cb_prevsnap, &used); 1103 cb->cb_snapused += used; 1104 free(cb->cb_firstsnap); 1105 cb->cb_firstsnap = NULL; 1106 free(cb->cb_prevsnap); 1107 cb->cb_prevsnap = NULL; 1108 } 1109 zfs_close(zhp); 1110 return (err); 1111 } 1112 1113 static int 1114 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1115 { 1116 int err = 0; 1117 assert(cb->cb_firstsnap == NULL); 1118 assert(cb->cb_prevsnap == NULL); 1119 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1120 if (cb->cb_firstsnap != NULL) { 1121 uint64_t used = 0; 1122 if (err == 0) { 1123 err = lzc_snaprange_space(cb->cb_firstsnap, 1124 cb->cb_prevsnap, &used); 1125 } 1126 cb->cb_snapused += used; 1127 free(cb->cb_firstsnap); 1128 cb->cb_firstsnap = NULL; 1129 free(cb->cb_prevsnap); 1130 cb->cb_prevsnap = NULL; 1131 } 1132 return (err); 1133 } 1134 1135 static int 1136 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1137 { 1138 destroy_cbdata_t *cb = arg; 1139 int err = 0; 1140 1141 /* Check for clones. */ 1142 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1143 cb->cb_target = zhp; 1144 cb->cb_first = B_TRUE; 1145 err = zfs_iter_dependents(zhp, B_TRUE, 1146 destroy_check_dependent, cb); 1147 } 1148 1149 if (err == 0) { 1150 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1151 nomem(); 1152 } 1153 zfs_close(zhp); 1154 return (err); 1155 } 1156 1157 static int 1158 gather_snapshots(zfs_handle_t *zhp, void *arg) 1159 { 1160 destroy_cbdata_t *cb = arg; 1161 int err = 0; 1162 1163 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1164 if (err == ENOENT) 1165 err = 0; 1166 if (err != 0) 1167 goto out; 1168 1169 if (cb->cb_verbose) { 1170 err = destroy_print_snapshots(zhp, cb); 1171 if (err != 0) 1172 goto out; 1173 } 1174 1175 if (cb->cb_recurse) 1176 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1177 1178 out: 1179 zfs_close(zhp); 1180 return (err); 1181 } 1182 1183 static int 1184 destroy_clones(destroy_cbdata_t *cb) 1185 { 1186 nvpair_t *pair; 1187 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1188 pair != NULL; 1189 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1190 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1191 ZFS_TYPE_SNAPSHOT); 1192 if (zhp != NULL) { 1193 boolean_t defer = cb->cb_defer_destroy; 1194 int err = 0; 1195 1196 /* 1197 * We can't defer destroy non-snapshots, so set it to 1198 * false while destroying the clones. 1199 */ 1200 cb->cb_defer_destroy = B_FALSE; 1201 err = zfs_iter_dependents(zhp, B_FALSE, 1202 destroy_callback, cb); 1203 cb->cb_defer_destroy = defer; 1204 zfs_close(zhp); 1205 if (err != 0) 1206 return (err); 1207 } 1208 } 1209 return (0); 1210 } 1211 1212 static int 1213 zfs_do_destroy(int argc, char **argv) 1214 { 1215 destroy_cbdata_t cb = { 0 }; 1216 int rv = 0; 1217 int err = 0; 1218 int c; 1219 zfs_handle_t *zhp = NULL; 1220 char *at, *pound; 1221 zfs_type_t type = ZFS_TYPE_DATASET; 1222 1223 /* check options */ 1224 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1225 switch (c) { 1226 case 'v': 1227 cb.cb_verbose = B_TRUE; 1228 break; 1229 case 'p': 1230 cb.cb_verbose = B_TRUE; 1231 cb.cb_parsable = B_TRUE; 1232 break; 1233 case 'n': 1234 cb.cb_dryrun = B_TRUE; 1235 break; 1236 case 'd': 1237 cb.cb_defer_destroy = B_TRUE; 1238 type = ZFS_TYPE_SNAPSHOT; 1239 break; 1240 case 'f': 1241 cb.cb_force = B_TRUE; 1242 break; 1243 case 'r': 1244 cb.cb_recurse = B_TRUE; 1245 break; 1246 case 'R': 1247 cb.cb_recurse = B_TRUE; 1248 cb.cb_doclones = B_TRUE; 1249 break; 1250 case '?': 1251 default: 1252 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1253 optopt); 1254 usage(B_FALSE); 1255 } 1256 } 1257 1258 argc -= optind; 1259 argv += optind; 1260 1261 /* check number of arguments */ 1262 if (argc == 0) { 1263 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1264 usage(B_FALSE); 1265 } 1266 if (argc > 1) { 1267 (void) fprintf(stderr, gettext("too many arguments\n")); 1268 usage(B_FALSE); 1269 } 1270 1271 at = strchr(argv[0], '@'); 1272 pound = strchr(argv[0], '#'); 1273 if (at != NULL) { 1274 1275 /* Build the list of snaps to destroy in cb_nvl. */ 1276 cb.cb_nvl = fnvlist_alloc(); 1277 1278 *at = '\0'; 1279 zhp = zfs_open(g_zfs, argv[0], 1280 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1281 if (zhp == NULL) 1282 return (1); 1283 1284 cb.cb_snapspec = at + 1; 1285 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1286 cb.cb_error) { 1287 rv = 1; 1288 goto out; 1289 } 1290 1291 if (nvlist_empty(cb.cb_nvl)) { 1292 (void) fprintf(stderr, gettext("could not find any " 1293 "snapshots to destroy; check snapshot names.\n")); 1294 rv = 1; 1295 goto out; 1296 } 1297 1298 if (cb.cb_verbose) { 1299 char buf[16]; 1300 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1301 if (cb.cb_parsable) { 1302 (void) printf("reclaim\t%llu\n", 1303 cb.cb_snapused); 1304 } else if (cb.cb_dryrun) { 1305 (void) printf(gettext("would reclaim %s\n"), 1306 buf); 1307 } else { 1308 (void) printf(gettext("will reclaim %s\n"), 1309 buf); 1310 } 1311 } 1312 1313 if (!cb.cb_dryrun) { 1314 if (cb.cb_doclones) { 1315 cb.cb_batchedsnaps = fnvlist_alloc(); 1316 err = destroy_clones(&cb); 1317 if (err == 0) { 1318 err = zfs_destroy_snaps_nvl(g_zfs, 1319 cb.cb_batchedsnaps, B_FALSE); 1320 } 1321 if (err != 0) { 1322 rv = 1; 1323 goto out; 1324 } 1325 } 1326 if (err == 0) { 1327 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1328 cb.cb_defer_destroy); 1329 } 1330 } 1331 1332 if (err != 0) 1333 rv = 1; 1334 } else if (pound != NULL) { 1335 int err; 1336 nvlist_t *nvl; 1337 1338 if (cb.cb_dryrun) { 1339 (void) fprintf(stderr, 1340 "dryrun is not supported with bookmark\n"); 1341 return (-1); 1342 } 1343 1344 if (cb.cb_defer_destroy) { 1345 (void) fprintf(stderr, 1346 "defer destroy is not supported with bookmark\n"); 1347 return (-1); 1348 } 1349 1350 if (cb.cb_recurse) { 1351 (void) fprintf(stderr, 1352 "recursive is not supported with bookmark\n"); 1353 return (-1); 1354 } 1355 1356 if (!zfs_bookmark_exists(argv[0])) { 1357 (void) fprintf(stderr, gettext("bookmark '%s' " 1358 "does not exist.\n"), argv[0]); 1359 return (1); 1360 } 1361 1362 nvl = fnvlist_alloc(); 1363 fnvlist_add_boolean(nvl, argv[0]); 1364 1365 err = lzc_destroy_bookmarks(nvl, NULL); 1366 if (err != 0) { 1367 (void) zfs_standard_error(g_zfs, err, 1368 "cannot destroy bookmark"); 1369 } 1370 1371 nvlist_free(cb.cb_nvl); 1372 1373 return (err); 1374 } else { 1375 /* Open the given dataset */ 1376 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1377 return (1); 1378 1379 cb.cb_target = zhp; 1380 1381 /* 1382 * Perform an explicit check for pools before going any further. 1383 */ 1384 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1385 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1386 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1387 "operation does not apply to pools\n"), 1388 zfs_get_name(zhp)); 1389 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1390 "%s' to destroy all datasets in the pool\n"), 1391 zfs_get_name(zhp)); 1392 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1393 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1394 rv = 1; 1395 goto out; 1396 } 1397 1398 /* 1399 * Check for any dependents and/or clones. 1400 */ 1401 cb.cb_first = B_TRUE; 1402 if (!cb.cb_doclones && 1403 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1404 &cb) != 0) { 1405 rv = 1; 1406 goto out; 1407 } 1408 1409 if (cb.cb_error) { 1410 rv = 1; 1411 goto out; 1412 } 1413 1414 cb.cb_batchedsnaps = fnvlist_alloc(); 1415 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1416 &cb) != 0) { 1417 rv = 1; 1418 goto out; 1419 } 1420 1421 /* 1422 * Do the real thing. The callback will close the 1423 * handle regardless of whether it succeeds or not. 1424 */ 1425 err = destroy_callback(zhp, &cb); 1426 zhp = NULL; 1427 if (err == 0) { 1428 err = zfs_destroy_snaps_nvl(g_zfs, 1429 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1430 } 1431 if (err != 0) 1432 rv = 1; 1433 } 1434 1435 out: 1436 fnvlist_free(cb.cb_batchedsnaps); 1437 fnvlist_free(cb.cb_nvl); 1438 if (zhp != NULL) 1439 zfs_close(zhp); 1440 return (rv); 1441 } 1442 1443 static boolean_t 1444 is_recvd_column(zprop_get_cbdata_t *cbp) 1445 { 1446 int i; 1447 zfs_get_column_t col; 1448 1449 for (i = 0; i < ZFS_GET_NCOLS && 1450 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1451 if (col == GET_COL_RECVD) 1452 return (B_TRUE); 1453 return (B_FALSE); 1454 } 1455 1456 /* 1457 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1458 * < all | property[,property]... > < fs | snap | vol > ... 1459 * 1460 * -r recurse over any child datasets 1461 * -H scripted mode. Headers are stripped, and fields are separated 1462 * by tabs instead of spaces. 1463 * -o Set of fields to display. One of "name,property,value, 1464 * received,source". Default is "name,property,value,source". 1465 * "all" is an alias for all five. 1466 * -s Set of sources to allow. One of 1467 * "local,default,inherited,received,temporary,none". Default is 1468 * all six. 1469 * -p Display values in parsable (literal) format. 1470 * 1471 * Prints properties for the given datasets. The user can control which 1472 * columns to display as well as which property types to allow. 1473 */ 1474 1475 /* 1476 * Invoked to display the properties for a single dataset. 1477 */ 1478 static int 1479 get_callback(zfs_handle_t *zhp, void *data) 1480 { 1481 char buf[ZFS_MAXPROPLEN]; 1482 char rbuf[ZFS_MAXPROPLEN]; 1483 zprop_source_t sourcetype; 1484 char source[ZFS_MAXNAMELEN]; 1485 zprop_get_cbdata_t *cbp = data; 1486 nvlist_t *user_props = zfs_get_user_props(zhp); 1487 zprop_list_t *pl = cbp->cb_proplist; 1488 nvlist_t *propval; 1489 char *strval; 1490 char *sourceval; 1491 boolean_t received = is_recvd_column(cbp); 1492 1493 for (; pl != NULL; pl = pl->pl_next) { 1494 char *recvdval = NULL; 1495 /* 1496 * Skip the special fake placeholder. This will also skip over 1497 * the name property when 'all' is specified. 1498 */ 1499 if (pl->pl_prop == ZFS_PROP_NAME && 1500 pl == cbp->cb_proplist) 1501 continue; 1502 1503 if (pl->pl_prop != ZPROP_INVAL) { 1504 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1505 sizeof (buf), &sourcetype, source, 1506 sizeof (source), 1507 cbp->cb_literal) != 0) { 1508 if (pl->pl_all) 1509 continue; 1510 if (!zfs_prop_valid_for_type(pl->pl_prop, 1511 ZFS_TYPE_DATASET)) { 1512 (void) fprintf(stderr, 1513 gettext("No such property '%s'\n"), 1514 zfs_prop_to_name(pl->pl_prop)); 1515 continue; 1516 } 1517 sourcetype = ZPROP_SRC_NONE; 1518 (void) strlcpy(buf, "-", sizeof (buf)); 1519 } 1520 1521 if (received && (zfs_prop_get_recvd(zhp, 1522 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1523 cbp->cb_literal) == 0)) 1524 recvdval = rbuf; 1525 1526 zprop_print_one_property(zfs_get_name(zhp), cbp, 1527 zfs_prop_to_name(pl->pl_prop), 1528 buf, sourcetype, source, recvdval); 1529 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1530 sourcetype = ZPROP_SRC_LOCAL; 1531 1532 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1533 buf, sizeof (buf), cbp->cb_literal) != 0) { 1534 sourcetype = ZPROP_SRC_NONE; 1535 (void) strlcpy(buf, "-", sizeof (buf)); 1536 } 1537 1538 zprop_print_one_property(zfs_get_name(zhp), cbp, 1539 pl->pl_user_prop, buf, sourcetype, source, NULL); 1540 } else if (zfs_prop_written(pl->pl_user_prop)) { 1541 sourcetype = ZPROP_SRC_LOCAL; 1542 1543 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1544 buf, sizeof (buf), cbp->cb_literal) != 0) { 1545 sourcetype = ZPROP_SRC_NONE; 1546 (void) strlcpy(buf, "-", sizeof (buf)); 1547 } 1548 1549 zprop_print_one_property(zfs_get_name(zhp), cbp, 1550 pl->pl_user_prop, buf, sourcetype, source, NULL); 1551 } else { 1552 if (nvlist_lookup_nvlist(user_props, 1553 pl->pl_user_prop, &propval) != 0) { 1554 if (pl->pl_all) 1555 continue; 1556 sourcetype = ZPROP_SRC_NONE; 1557 strval = "-"; 1558 } else { 1559 verify(nvlist_lookup_string(propval, 1560 ZPROP_VALUE, &strval) == 0); 1561 verify(nvlist_lookup_string(propval, 1562 ZPROP_SOURCE, &sourceval) == 0); 1563 1564 if (strcmp(sourceval, 1565 zfs_get_name(zhp)) == 0) { 1566 sourcetype = ZPROP_SRC_LOCAL; 1567 } else if (strcmp(sourceval, 1568 ZPROP_SOURCE_VAL_RECVD) == 0) { 1569 sourcetype = ZPROP_SRC_RECEIVED; 1570 } else { 1571 sourcetype = ZPROP_SRC_INHERITED; 1572 (void) strlcpy(source, 1573 sourceval, sizeof (source)); 1574 } 1575 } 1576 1577 if (received && (zfs_prop_get_recvd(zhp, 1578 pl->pl_user_prop, rbuf, sizeof (rbuf), 1579 cbp->cb_literal) == 0)) 1580 recvdval = rbuf; 1581 1582 zprop_print_one_property(zfs_get_name(zhp), cbp, 1583 pl->pl_user_prop, strval, sourcetype, 1584 source, recvdval); 1585 } 1586 } 1587 1588 return (0); 1589 } 1590 1591 static int 1592 zfs_do_get(int argc, char **argv) 1593 { 1594 zprop_get_cbdata_t cb = { 0 }; 1595 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1596 int types = ZFS_TYPE_DATASET; 1597 char *value, *fields; 1598 int ret = 0; 1599 int limit = 0; 1600 zprop_list_t fake_name = { 0 }; 1601 1602 /* 1603 * Set up default columns and sources. 1604 */ 1605 cb.cb_sources = ZPROP_SRC_ALL; 1606 cb.cb_columns[0] = GET_COL_NAME; 1607 cb.cb_columns[1] = GET_COL_PROPERTY; 1608 cb.cb_columns[2] = GET_COL_VALUE; 1609 cb.cb_columns[3] = GET_COL_SOURCE; 1610 cb.cb_type = ZFS_TYPE_DATASET; 1611 1612 /* check options */ 1613 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1614 switch (c) { 1615 case 'p': 1616 cb.cb_literal = B_TRUE; 1617 break; 1618 case 'd': 1619 limit = parse_depth(optarg, &flags); 1620 break; 1621 case 'r': 1622 flags |= ZFS_ITER_RECURSE; 1623 break; 1624 case 'H': 1625 cb.cb_scripted = B_TRUE; 1626 break; 1627 case ':': 1628 (void) fprintf(stderr, gettext("missing argument for " 1629 "'%c' option\n"), optopt); 1630 usage(B_FALSE); 1631 break; 1632 case 'o': 1633 /* 1634 * Process the set of columns to display. We zero out 1635 * the structure to give us a blank slate. 1636 */ 1637 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1638 i = 0; 1639 while (*optarg != '\0') { 1640 static char *col_subopts[] = 1641 { "name", "property", "value", "received", 1642 "source", "all", NULL }; 1643 1644 if (i == ZFS_GET_NCOLS) { 1645 (void) fprintf(stderr, gettext("too " 1646 "many fields given to -o " 1647 "option\n")); 1648 usage(B_FALSE); 1649 } 1650 1651 switch (getsubopt(&optarg, col_subopts, 1652 &value)) { 1653 case 0: 1654 cb.cb_columns[i++] = GET_COL_NAME; 1655 break; 1656 case 1: 1657 cb.cb_columns[i++] = GET_COL_PROPERTY; 1658 break; 1659 case 2: 1660 cb.cb_columns[i++] = GET_COL_VALUE; 1661 break; 1662 case 3: 1663 cb.cb_columns[i++] = GET_COL_RECVD; 1664 flags |= ZFS_ITER_RECVD_PROPS; 1665 break; 1666 case 4: 1667 cb.cb_columns[i++] = GET_COL_SOURCE; 1668 break; 1669 case 5: 1670 if (i > 0) { 1671 (void) fprintf(stderr, 1672 gettext("\"all\" conflicts " 1673 "with specific fields " 1674 "given to -o option\n")); 1675 usage(B_FALSE); 1676 } 1677 cb.cb_columns[0] = GET_COL_NAME; 1678 cb.cb_columns[1] = GET_COL_PROPERTY; 1679 cb.cb_columns[2] = GET_COL_VALUE; 1680 cb.cb_columns[3] = GET_COL_RECVD; 1681 cb.cb_columns[4] = GET_COL_SOURCE; 1682 flags |= ZFS_ITER_RECVD_PROPS; 1683 i = ZFS_GET_NCOLS; 1684 break; 1685 default: 1686 (void) fprintf(stderr, 1687 gettext("invalid column name " 1688 "'%s'\n"), value); 1689 usage(B_FALSE); 1690 } 1691 } 1692 break; 1693 1694 case 's': 1695 cb.cb_sources = 0; 1696 while (*optarg != '\0') { 1697 static char *source_subopts[] = { 1698 "local", "default", "inherited", 1699 "received", "temporary", "none", 1700 NULL }; 1701 1702 switch (getsubopt(&optarg, source_subopts, 1703 &value)) { 1704 case 0: 1705 cb.cb_sources |= ZPROP_SRC_LOCAL; 1706 break; 1707 case 1: 1708 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1709 break; 1710 case 2: 1711 cb.cb_sources |= ZPROP_SRC_INHERITED; 1712 break; 1713 case 3: 1714 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1715 break; 1716 case 4: 1717 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1718 break; 1719 case 5: 1720 cb.cb_sources |= ZPROP_SRC_NONE; 1721 break; 1722 default: 1723 (void) fprintf(stderr, 1724 gettext("invalid source " 1725 "'%s'\n"), value); 1726 usage(B_FALSE); 1727 } 1728 } 1729 break; 1730 1731 case 't': 1732 types = 0; 1733 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1734 while (*optarg != '\0') { 1735 static char *type_subopts[] = { "filesystem", 1736 "volume", "snapshot", "bookmark", 1737 "all", NULL }; 1738 1739 switch (getsubopt(&optarg, type_subopts, 1740 &value)) { 1741 case 0: 1742 types |= ZFS_TYPE_FILESYSTEM; 1743 break; 1744 case 1: 1745 types |= ZFS_TYPE_VOLUME; 1746 break; 1747 case 2: 1748 types |= ZFS_TYPE_SNAPSHOT; 1749 break; 1750 case 3: 1751 types |= ZFS_TYPE_BOOKMARK; 1752 break; 1753 case 4: 1754 types = ZFS_TYPE_DATASET | 1755 ZFS_TYPE_BOOKMARK; 1756 break; 1757 1758 default: 1759 (void) fprintf(stderr, 1760 gettext("invalid type '%s'\n"), 1761 value); 1762 usage(B_FALSE); 1763 } 1764 } 1765 break; 1766 1767 case '?': 1768 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1769 optopt); 1770 usage(B_FALSE); 1771 } 1772 } 1773 1774 argc -= optind; 1775 argv += optind; 1776 1777 if (argc < 1) { 1778 (void) fprintf(stderr, gettext("missing property " 1779 "argument\n")); 1780 usage(B_FALSE); 1781 } 1782 1783 fields = argv[0]; 1784 1785 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1786 != 0) 1787 usage(B_FALSE); 1788 1789 argc--; 1790 argv++; 1791 1792 /* 1793 * As part of zfs_expand_proplist(), we keep track of the maximum column 1794 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1795 * need to know the maximum name length. However, the user likely did 1796 * not specify 'name' as one of the properties to fetch, so we need to 1797 * make sure we always include at least this property for 1798 * print_get_headers() to work properly. 1799 */ 1800 if (cb.cb_proplist != NULL) { 1801 fake_name.pl_prop = ZFS_PROP_NAME; 1802 fake_name.pl_width = strlen(gettext("NAME")); 1803 fake_name.pl_next = cb.cb_proplist; 1804 cb.cb_proplist = &fake_name; 1805 } 1806 1807 cb.cb_first = B_TRUE; 1808 1809 /* run for each object */ 1810 ret = zfs_for_each(argc, argv, flags, types, NULL, 1811 &cb.cb_proplist, limit, get_callback, &cb); 1812 1813 if (cb.cb_proplist == &fake_name) 1814 zprop_free_list(fake_name.pl_next); 1815 else 1816 zprop_free_list(cb.cb_proplist); 1817 1818 return (ret); 1819 } 1820 1821 /* 1822 * inherit [-rS] <property> <fs|vol> ... 1823 * 1824 * -r Recurse over all children 1825 * -S Revert to received value, if any 1826 * 1827 * For each dataset specified on the command line, inherit the given property 1828 * from its parent. Inheriting a property at the pool level will cause it to 1829 * use the default value. The '-r' flag will recurse over all children, and is 1830 * useful for setting a property on a hierarchy-wide basis, regardless of any 1831 * local modifications for each dataset. 1832 */ 1833 1834 typedef struct inherit_cbdata { 1835 const char *cb_propname; 1836 boolean_t cb_received; 1837 } inherit_cbdata_t; 1838 1839 static int 1840 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1841 { 1842 inherit_cbdata_t *cb = data; 1843 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1844 1845 /* 1846 * If we're doing it recursively, then ignore properties that 1847 * are not valid for this type of dataset. 1848 */ 1849 if (prop != ZPROP_INVAL && 1850 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1851 return (0); 1852 1853 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1854 } 1855 1856 static int 1857 inherit_cb(zfs_handle_t *zhp, void *data) 1858 { 1859 inherit_cbdata_t *cb = data; 1860 1861 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1862 } 1863 1864 static int 1865 zfs_do_inherit(int argc, char **argv) 1866 { 1867 int c; 1868 zfs_prop_t prop; 1869 inherit_cbdata_t cb = { 0 }; 1870 char *propname; 1871 int ret = 0; 1872 int flags = 0; 1873 boolean_t received = B_FALSE; 1874 1875 /* check options */ 1876 while ((c = getopt(argc, argv, "rS")) != -1) { 1877 switch (c) { 1878 case 'r': 1879 flags |= ZFS_ITER_RECURSE; 1880 break; 1881 case 'S': 1882 received = B_TRUE; 1883 break; 1884 case '?': 1885 default: 1886 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1887 optopt); 1888 usage(B_FALSE); 1889 } 1890 } 1891 1892 argc -= optind; 1893 argv += optind; 1894 1895 /* check number of arguments */ 1896 if (argc < 1) { 1897 (void) fprintf(stderr, gettext("missing property argument\n")); 1898 usage(B_FALSE); 1899 } 1900 if (argc < 2) { 1901 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1902 usage(B_FALSE); 1903 } 1904 1905 propname = argv[0]; 1906 argc--; 1907 argv++; 1908 1909 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1910 if (zfs_prop_readonly(prop)) { 1911 (void) fprintf(stderr, gettext( 1912 "%s property is read-only\n"), 1913 propname); 1914 return (1); 1915 } 1916 if (!zfs_prop_inheritable(prop) && !received) { 1917 (void) fprintf(stderr, gettext("'%s' property cannot " 1918 "be inherited\n"), propname); 1919 if (prop == ZFS_PROP_QUOTA || 1920 prop == ZFS_PROP_RESERVATION || 1921 prop == ZFS_PROP_REFQUOTA || 1922 prop == ZFS_PROP_REFRESERVATION) { 1923 (void) fprintf(stderr, gettext("use 'zfs set " 1924 "%s=none' to clear\n"), propname); 1925 (void) fprintf(stderr, gettext("use 'zfs " 1926 "inherit -S %s' to revert to received " 1927 "value\n"), propname); 1928 } 1929 return (1); 1930 } 1931 if (received && (prop == ZFS_PROP_VOLSIZE || 1932 prop == ZFS_PROP_VERSION)) { 1933 (void) fprintf(stderr, gettext("'%s' property cannot " 1934 "be reverted to a received value\n"), propname); 1935 return (1); 1936 } 1937 } else if (!zfs_prop_user(propname)) { 1938 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1939 propname); 1940 usage(B_FALSE); 1941 } 1942 1943 cb.cb_propname = propname; 1944 cb.cb_received = received; 1945 1946 if (flags & ZFS_ITER_RECURSE) { 1947 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1948 NULL, NULL, 0, inherit_recurse_cb, &cb); 1949 } else { 1950 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1951 NULL, NULL, 0, inherit_cb, &cb); 1952 } 1953 1954 return (ret); 1955 } 1956 1957 typedef struct upgrade_cbdata { 1958 uint64_t cb_numupgraded; 1959 uint64_t cb_numsamegraded; 1960 uint64_t cb_numfailed; 1961 uint64_t cb_version; 1962 boolean_t cb_newer; 1963 boolean_t cb_foundone; 1964 char cb_lastfs[ZFS_MAXNAMELEN]; 1965 } upgrade_cbdata_t; 1966 1967 static int 1968 same_pool(zfs_handle_t *zhp, const char *name) 1969 { 1970 int len1 = strcspn(name, "/@"); 1971 const char *zhname = zfs_get_name(zhp); 1972 int len2 = strcspn(zhname, "/@"); 1973 1974 if (len1 != len2) 1975 return (B_FALSE); 1976 return (strncmp(name, zhname, len1) == 0); 1977 } 1978 1979 static int 1980 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1981 { 1982 upgrade_cbdata_t *cb = data; 1983 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1984 1985 /* list if it's old/new */ 1986 if ((!cb->cb_newer && version < ZPL_VERSION) || 1987 (cb->cb_newer && version > ZPL_VERSION)) { 1988 char *str; 1989 if (cb->cb_newer) { 1990 str = gettext("The following filesystems are " 1991 "formatted using a newer software version and\n" 1992 "cannot be accessed on the current system.\n\n"); 1993 } else { 1994 str = gettext("The following filesystems are " 1995 "out of date, and can be upgraded. After being\n" 1996 "upgraded, these filesystems (and any 'zfs send' " 1997 "streams generated from\n" 1998 "subsequent snapshots) will no longer be " 1999 "accessible by older software versions.\n\n"); 2000 } 2001 2002 if (!cb->cb_foundone) { 2003 (void) puts(str); 2004 (void) printf(gettext("VER FILESYSTEM\n")); 2005 (void) printf(gettext("--- ------------\n")); 2006 cb->cb_foundone = B_TRUE; 2007 } 2008 2009 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2010 } 2011 2012 return (0); 2013 } 2014 2015 static int 2016 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2017 { 2018 upgrade_cbdata_t *cb = data; 2019 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2020 int needed_spa_version; 2021 int spa_version; 2022 2023 if (zfs_spa_version(zhp, &spa_version) < 0) 2024 return (-1); 2025 2026 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2027 2028 if (needed_spa_version < 0) 2029 return (-1); 2030 2031 if (spa_version < needed_spa_version) { 2032 /* can't upgrade */ 2033 (void) printf(gettext("%s: can not be " 2034 "upgraded; the pool version needs to first " 2035 "be upgraded\nto version %d\n\n"), 2036 zfs_get_name(zhp), needed_spa_version); 2037 cb->cb_numfailed++; 2038 return (0); 2039 } 2040 2041 /* upgrade */ 2042 if (version < cb->cb_version) { 2043 char verstr[16]; 2044 (void) snprintf(verstr, sizeof (verstr), 2045 "%llu", cb->cb_version); 2046 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2047 /* 2048 * If they did "zfs upgrade -a", then we could 2049 * be doing ioctls to different pools. We need 2050 * to log this history once to each pool, and bypass 2051 * the normal history logging that happens in main(). 2052 */ 2053 (void) zpool_log_history(g_zfs, history_str); 2054 log_history = B_FALSE; 2055 } 2056 if (zfs_prop_set(zhp, "version", verstr) == 0) 2057 cb->cb_numupgraded++; 2058 else 2059 cb->cb_numfailed++; 2060 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2061 } else if (version > cb->cb_version) { 2062 /* can't downgrade */ 2063 (void) printf(gettext("%s: can not be downgraded; " 2064 "it is already at version %u\n"), 2065 zfs_get_name(zhp), version); 2066 cb->cb_numfailed++; 2067 } else { 2068 cb->cb_numsamegraded++; 2069 } 2070 return (0); 2071 } 2072 2073 /* 2074 * zfs upgrade 2075 * zfs upgrade -v 2076 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2077 */ 2078 static int 2079 zfs_do_upgrade(int argc, char **argv) 2080 { 2081 boolean_t all = B_FALSE; 2082 boolean_t showversions = B_FALSE; 2083 int ret = 0; 2084 upgrade_cbdata_t cb = { 0 }; 2085 char c; 2086 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2087 2088 /* check options */ 2089 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2090 switch (c) { 2091 case 'r': 2092 flags |= ZFS_ITER_RECURSE; 2093 break; 2094 case 'v': 2095 showversions = B_TRUE; 2096 break; 2097 case 'V': 2098 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2099 optarg, &cb.cb_version) != 0) { 2100 (void) fprintf(stderr, 2101 gettext("invalid version %s\n"), optarg); 2102 usage(B_FALSE); 2103 } 2104 break; 2105 case 'a': 2106 all = B_TRUE; 2107 break; 2108 case '?': 2109 default: 2110 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2111 optopt); 2112 usage(B_FALSE); 2113 } 2114 } 2115 2116 argc -= optind; 2117 argv += optind; 2118 2119 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2120 usage(B_FALSE); 2121 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2122 cb.cb_version || argc)) 2123 usage(B_FALSE); 2124 if ((all || argc) && (showversions)) 2125 usage(B_FALSE); 2126 if (all && argc) 2127 usage(B_FALSE); 2128 2129 if (showversions) { 2130 /* Show info on available versions. */ 2131 (void) printf(gettext("The following filesystem versions are " 2132 "supported:\n\n")); 2133 (void) printf(gettext("VER DESCRIPTION\n")); 2134 (void) printf("--- -----------------------------------------" 2135 "---------------\n"); 2136 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2137 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2138 (void) printf(gettext(" 3 Case insensitive and filesystem " 2139 "user identifier (FUID)\n")); 2140 (void) printf(gettext(" 4 userquota, groupquota " 2141 "properties\n")); 2142 (void) printf(gettext(" 5 System attributes\n")); 2143 (void) printf(gettext("\nFor more information on a particular " 2144 "version, including supported releases,\n")); 2145 (void) printf("see the ZFS Administration Guide.\n\n"); 2146 ret = 0; 2147 } else if (argc || all) { 2148 /* Upgrade filesystems */ 2149 if (cb.cb_version == 0) 2150 cb.cb_version = ZPL_VERSION; 2151 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2152 NULL, NULL, 0, upgrade_set_callback, &cb); 2153 (void) printf(gettext("%llu filesystems upgraded\n"), 2154 cb.cb_numupgraded); 2155 if (cb.cb_numsamegraded) { 2156 (void) printf(gettext("%llu filesystems already at " 2157 "this version\n"), 2158 cb.cb_numsamegraded); 2159 } 2160 if (cb.cb_numfailed != 0) 2161 ret = 1; 2162 } else { 2163 /* List old-version filesytems */ 2164 boolean_t found; 2165 (void) printf(gettext("This system is currently running " 2166 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2167 2168 flags |= ZFS_ITER_RECURSE; 2169 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2170 NULL, NULL, 0, upgrade_list_callback, &cb); 2171 2172 found = cb.cb_foundone; 2173 cb.cb_foundone = B_FALSE; 2174 cb.cb_newer = B_TRUE; 2175 2176 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2177 NULL, NULL, 0, upgrade_list_callback, &cb); 2178 2179 if (!cb.cb_foundone && !found) { 2180 (void) printf(gettext("All filesystems are " 2181 "formatted with the current version.\n")); 2182 } 2183 } 2184 2185 return (ret); 2186 } 2187 2188 /* 2189 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2190 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2191 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2192 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2193 * 2194 * -H Scripted mode; elide headers and separate columns by tabs. 2195 * -i Translate SID to POSIX ID. 2196 * -n Print numeric ID instead of user/group name. 2197 * -o Control which fields to display. 2198 * -p Use exact (parsable) numeric output. 2199 * -s Specify sort columns, descending order. 2200 * -S Specify sort columns, ascending order. 2201 * -t Control which object types to display. 2202 * 2203 * Displays space consumed by, and quotas on, each user in the specified 2204 * filesystem or snapshot. 2205 */ 2206 2207 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2208 enum us_field_types { 2209 USFIELD_TYPE, 2210 USFIELD_NAME, 2211 USFIELD_USED, 2212 USFIELD_QUOTA 2213 }; 2214 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2215 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2216 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2217 2218 #define USTYPE_PSX_GRP (1 << 0) 2219 #define USTYPE_PSX_USR (1 << 1) 2220 #define USTYPE_SMB_GRP (1 << 2) 2221 #define USTYPE_SMB_USR (1 << 3) 2222 #define USTYPE_ALL \ 2223 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2224 2225 static int us_type_bits[] = { 2226 USTYPE_PSX_GRP, 2227 USTYPE_PSX_USR, 2228 USTYPE_SMB_GRP, 2229 USTYPE_SMB_USR, 2230 USTYPE_ALL 2231 }; 2232 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2233 "smbuser", "all" }; 2234 2235 typedef struct us_node { 2236 nvlist_t *usn_nvl; 2237 uu_avl_node_t usn_avlnode; 2238 uu_list_node_t usn_listnode; 2239 } us_node_t; 2240 2241 typedef struct us_cbdata { 2242 nvlist_t **cb_nvlp; 2243 uu_avl_pool_t *cb_avl_pool; 2244 uu_avl_t *cb_avl; 2245 boolean_t cb_numname; 2246 boolean_t cb_nicenum; 2247 boolean_t cb_sid2posix; 2248 zfs_userquota_prop_t cb_prop; 2249 zfs_sort_column_t *cb_sortcol; 2250 size_t cb_width[USFIELD_LAST]; 2251 } us_cbdata_t; 2252 2253 static boolean_t us_populated = B_FALSE; 2254 2255 typedef struct { 2256 zfs_sort_column_t *si_sortcol; 2257 boolean_t si_numname; 2258 } us_sort_info_t; 2259 2260 static int 2261 us_field_index(char *field) 2262 { 2263 int i; 2264 2265 for (i = 0; i < USFIELD_LAST; i++) { 2266 if (strcmp(field, us_field_names[i]) == 0) 2267 return (i); 2268 } 2269 2270 return (-1); 2271 } 2272 2273 static int 2274 us_compare(const void *larg, const void *rarg, void *unused) 2275 { 2276 const us_node_t *l = larg; 2277 const us_node_t *r = rarg; 2278 us_sort_info_t *si = (us_sort_info_t *)unused; 2279 zfs_sort_column_t *sortcol = si->si_sortcol; 2280 boolean_t numname = si->si_numname; 2281 nvlist_t *lnvl = l->usn_nvl; 2282 nvlist_t *rnvl = r->usn_nvl; 2283 int rc = 0; 2284 boolean_t lvb, rvb; 2285 2286 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2287 char *lvstr = ""; 2288 char *rvstr = ""; 2289 uint32_t lv32 = 0; 2290 uint32_t rv32 = 0; 2291 uint64_t lv64 = 0; 2292 uint64_t rv64 = 0; 2293 zfs_prop_t prop = sortcol->sc_prop; 2294 const char *propname = NULL; 2295 boolean_t reverse = sortcol->sc_reverse; 2296 2297 switch (prop) { 2298 case ZFS_PROP_TYPE: 2299 propname = "type"; 2300 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2301 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2302 if (rv32 != lv32) 2303 rc = (rv32 < lv32) ? 1 : -1; 2304 break; 2305 case ZFS_PROP_NAME: 2306 propname = "name"; 2307 if (numname) { 2308 (void) nvlist_lookup_uint64(lnvl, propname, 2309 &lv64); 2310 (void) nvlist_lookup_uint64(rnvl, propname, 2311 &rv64); 2312 if (rv64 != lv64) 2313 rc = (rv64 < lv64) ? 1 : -1; 2314 } else { 2315 (void) nvlist_lookup_string(lnvl, propname, 2316 &lvstr); 2317 (void) nvlist_lookup_string(rnvl, propname, 2318 &rvstr); 2319 rc = strcmp(lvstr, rvstr); 2320 } 2321 break; 2322 case ZFS_PROP_USED: 2323 case ZFS_PROP_QUOTA: 2324 if (!us_populated) 2325 break; 2326 if (prop == ZFS_PROP_USED) 2327 propname = "used"; 2328 else 2329 propname = "quota"; 2330 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2331 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2332 if (rv64 != lv64) 2333 rc = (rv64 < lv64) ? 1 : -1; 2334 break; 2335 2336 default: 2337 break; 2338 } 2339 2340 if (rc != 0) { 2341 if (rc < 0) 2342 return (reverse ? 1 : -1); 2343 else 2344 return (reverse ? -1 : 1); 2345 } 2346 } 2347 2348 /* 2349 * If entries still seem to be the same, check if they are of the same 2350 * type (smbentity is added only if we are doing SID to POSIX ID 2351 * translation where we can have duplicate type/name combinations). 2352 */ 2353 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2354 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2355 lvb != rvb) 2356 return (lvb < rvb ? -1 : 1); 2357 2358 return (0); 2359 } 2360 2361 static inline const char * 2362 us_type2str(unsigned field_type) 2363 { 2364 switch (field_type) { 2365 case USTYPE_PSX_USR: 2366 return ("POSIX User"); 2367 case USTYPE_PSX_GRP: 2368 return ("POSIX Group"); 2369 case USTYPE_SMB_USR: 2370 return ("SMB User"); 2371 case USTYPE_SMB_GRP: 2372 return ("SMB Group"); 2373 default: 2374 return ("Undefined"); 2375 } 2376 } 2377 2378 static int 2379 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2380 { 2381 us_cbdata_t *cb = (us_cbdata_t *)arg; 2382 zfs_userquota_prop_t prop = cb->cb_prop; 2383 char *name = NULL; 2384 char *propname; 2385 char sizebuf[32]; 2386 us_node_t *node; 2387 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2388 uu_avl_t *avl = cb->cb_avl; 2389 uu_avl_index_t idx; 2390 nvlist_t *props; 2391 us_node_t *n; 2392 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2393 unsigned type = 0; 2394 const char *typestr; 2395 size_t namelen; 2396 size_t typelen; 2397 size_t sizelen; 2398 int typeidx, nameidx, sizeidx; 2399 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2400 boolean_t smbentity = B_FALSE; 2401 2402 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2403 nomem(); 2404 node = safe_malloc(sizeof (us_node_t)); 2405 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2406 node->usn_nvl = props; 2407 2408 if (domain != NULL && domain[0] != '\0') { 2409 /* SMB */ 2410 char sid[ZFS_MAXNAMELEN + 32]; 2411 uid_t id; 2412 int err; 2413 int flag = IDMAP_REQ_FLG_USE_CACHE; 2414 2415 smbentity = B_TRUE; 2416 2417 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2418 2419 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2420 type = USTYPE_SMB_GRP; 2421 err = sid_to_id(sid, B_FALSE, &id); 2422 } else { 2423 type = USTYPE_SMB_USR; 2424 err = sid_to_id(sid, B_TRUE, &id); 2425 } 2426 2427 if (err == 0) { 2428 rid = id; 2429 if (!cb->cb_sid2posix) { 2430 if (type == USTYPE_SMB_USR) { 2431 (void) idmap_getwinnamebyuid(rid, flag, 2432 &name, NULL); 2433 } else { 2434 (void) idmap_getwinnamebygid(rid, flag, 2435 &name, NULL); 2436 } 2437 if (name == NULL) 2438 name = sid; 2439 } 2440 } 2441 } 2442 2443 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2444 /* POSIX or -i */ 2445 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2446 type = USTYPE_PSX_GRP; 2447 if (!cb->cb_numname) { 2448 struct group *g; 2449 2450 if ((g = getgrgid(rid)) != NULL) 2451 name = g->gr_name; 2452 } 2453 } else { 2454 type = USTYPE_PSX_USR; 2455 if (!cb->cb_numname) { 2456 struct passwd *p; 2457 2458 if ((p = getpwuid(rid)) != NULL) 2459 name = p->pw_name; 2460 } 2461 } 2462 } 2463 2464 /* 2465 * Make sure that the type/name combination is unique when doing 2466 * SID to POSIX ID translation (hence changing the type from SMB to 2467 * POSIX). 2468 */ 2469 if (cb->cb_sid2posix && 2470 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2471 nomem(); 2472 2473 /* Calculate/update width of TYPE field */ 2474 typestr = us_type2str(type); 2475 typelen = strlen(gettext(typestr)); 2476 typeidx = us_field_index("type"); 2477 if (typelen > cb->cb_width[typeidx]) 2478 cb->cb_width[typeidx] = typelen; 2479 if (nvlist_add_uint32(props, "type", type) != 0) 2480 nomem(); 2481 2482 /* Calculate/update width of NAME field */ 2483 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2484 if (nvlist_add_uint64(props, "name", rid) != 0) 2485 nomem(); 2486 namelen = snprintf(NULL, 0, "%u", rid); 2487 } else { 2488 if (nvlist_add_string(props, "name", name) != 0) 2489 nomem(); 2490 namelen = strlen(name); 2491 } 2492 nameidx = us_field_index("name"); 2493 if (namelen > cb->cb_width[nameidx]) 2494 cb->cb_width[nameidx] = namelen; 2495 2496 /* 2497 * Check if this type/name combination is in the list and update it; 2498 * otherwise add new node to the list. 2499 */ 2500 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2501 uu_avl_insert(avl, node, idx); 2502 } else { 2503 nvlist_free(props); 2504 free(node); 2505 node = n; 2506 props = node->usn_nvl; 2507 } 2508 2509 /* Calculate/update width of USED/QUOTA fields */ 2510 if (cb->cb_nicenum) 2511 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2512 else 2513 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2514 sizelen = strlen(sizebuf); 2515 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2516 propname = "used"; 2517 if (!nvlist_exists(props, "quota")) 2518 (void) nvlist_add_uint64(props, "quota", 0); 2519 } else { 2520 propname = "quota"; 2521 if (!nvlist_exists(props, "used")) 2522 (void) nvlist_add_uint64(props, "used", 0); 2523 } 2524 sizeidx = us_field_index(propname); 2525 if (sizelen > cb->cb_width[sizeidx]) 2526 cb->cb_width[sizeidx] = sizelen; 2527 2528 if (nvlist_add_uint64(props, propname, space) != 0) 2529 nomem(); 2530 2531 return (0); 2532 } 2533 2534 static void 2535 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2536 size_t *width, us_node_t *node) 2537 { 2538 nvlist_t *nvl = node->usn_nvl; 2539 char valstr[ZFS_MAXNAMELEN]; 2540 boolean_t first = B_TRUE; 2541 int cfield = 0; 2542 int field; 2543 uint32_t ustype; 2544 2545 /* Check type */ 2546 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2547 if (!(ustype & types)) 2548 return; 2549 2550 while ((field = fields[cfield]) != USFIELD_LAST) { 2551 nvpair_t *nvp = NULL; 2552 data_type_t type; 2553 uint32_t val32; 2554 uint64_t val64; 2555 char *strval = NULL; 2556 2557 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2558 if (strcmp(nvpair_name(nvp), 2559 us_field_names[field]) == 0) 2560 break; 2561 } 2562 2563 type = nvpair_type(nvp); 2564 switch (type) { 2565 case DATA_TYPE_UINT32: 2566 (void) nvpair_value_uint32(nvp, &val32); 2567 break; 2568 case DATA_TYPE_UINT64: 2569 (void) nvpair_value_uint64(nvp, &val64); 2570 break; 2571 case DATA_TYPE_STRING: 2572 (void) nvpair_value_string(nvp, &strval); 2573 break; 2574 default: 2575 (void) fprintf(stderr, "invalid data type\n"); 2576 } 2577 2578 switch (field) { 2579 case USFIELD_TYPE: 2580 strval = (char *)us_type2str(val32); 2581 break; 2582 case USFIELD_NAME: 2583 if (type == DATA_TYPE_UINT64) { 2584 (void) sprintf(valstr, "%llu", val64); 2585 strval = valstr; 2586 } 2587 break; 2588 case USFIELD_USED: 2589 case USFIELD_QUOTA: 2590 if (type == DATA_TYPE_UINT64) { 2591 if (parsable) { 2592 (void) sprintf(valstr, "%llu", val64); 2593 } else { 2594 zfs_nicenum(val64, valstr, 2595 sizeof (valstr)); 2596 } 2597 if (field == USFIELD_QUOTA && 2598 strcmp(valstr, "0") == 0) 2599 strval = "none"; 2600 else 2601 strval = valstr; 2602 } 2603 break; 2604 } 2605 2606 if (!first) { 2607 if (scripted) 2608 (void) printf("\t"); 2609 else 2610 (void) printf(" "); 2611 } 2612 if (scripted) 2613 (void) printf("%s", strval); 2614 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2615 (void) printf("%-*s", width[field], strval); 2616 else 2617 (void) printf("%*s", width[field], strval); 2618 2619 first = B_FALSE; 2620 cfield++; 2621 } 2622 2623 (void) printf("\n"); 2624 } 2625 2626 static void 2627 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2628 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2629 { 2630 us_node_t *node; 2631 const char *col; 2632 int cfield = 0; 2633 int field; 2634 2635 if (!scripted) { 2636 boolean_t first = B_TRUE; 2637 2638 while ((field = fields[cfield]) != USFIELD_LAST) { 2639 col = gettext(us_field_hdr[field]); 2640 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2641 (void) printf(first ? "%-*s" : " %-*s", 2642 width[field], col); 2643 } else { 2644 (void) printf(first ? "%*s" : " %*s", 2645 width[field], col); 2646 } 2647 first = B_FALSE; 2648 cfield++; 2649 } 2650 (void) printf("\n"); 2651 } 2652 2653 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2654 print_us_node(scripted, parsable, fields, types, width, node); 2655 if (rmnode) 2656 nvlist_free(node->usn_nvl); 2657 } 2658 } 2659 2660 static int 2661 zfs_do_userspace(int argc, char **argv) 2662 { 2663 zfs_handle_t *zhp; 2664 zfs_userquota_prop_t p; 2665 uu_avl_pool_t *avl_pool; 2666 uu_avl_t *avl_tree; 2667 uu_avl_walk_t *walk; 2668 char *delim; 2669 char deffields[] = "type,name,used,quota"; 2670 char *ofield = NULL; 2671 char *tfield = NULL; 2672 int cfield = 0; 2673 int fields[256]; 2674 int i; 2675 boolean_t scripted = B_FALSE; 2676 boolean_t prtnum = B_FALSE; 2677 boolean_t parsable = B_FALSE; 2678 boolean_t sid2posix = B_FALSE; 2679 int ret = 0; 2680 int c; 2681 zfs_sort_column_t *sortcol = NULL; 2682 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2683 us_cbdata_t cb; 2684 us_node_t *node; 2685 us_node_t *rmnode; 2686 uu_list_pool_t *listpool; 2687 uu_list_t *list; 2688 uu_avl_index_t idx = 0; 2689 uu_list_index_t idx2 = 0; 2690 2691 if (argc < 2) 2692 usage(B_FALSE); 2693 2694 if (strcmp(argv[0], "groupspace") == 0) 2695 /* Toggle default group types */ 2696 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2697 2698 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2699 switch (c) { 2700 case 'n': 2701 prtnum = B_TRUE; 2702 break; 2703 case 'H': 2704 scripted = B_TRUE; 2705 break; 2706 case 'p': 2707 parsable = B_TRUE; 2708 break; 2709 case 'o': 2710 ofield = optarg; 2711 break; 2712 case 's': 2713 case 'S': 2714 if (zfs_add_sort_column(&sortcol, optarg, 2715 c == 's' ? B_FALSE : B_TRUE) != 0) { 2716 (void) fprintf(stderr, 2717 gettext("invalid field '%s'\n"), optarg); 2718 usage(B_FALSE); 2719 } 2720 break; 2721 case 't': 2722 tfield = optarg; 2723 break; 2724 case 'i': 2725 sid2posix = B_TRUE; 2726 break; 2727 case ':': 2728 (void) fprintf(stderr, gettext("missing argument for " 2729 "'%c' option\n"), optopt); 2730 usage(B_FALSE); 2731 break; 2732 case '?': 2733 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2734 optopt); 2735 usage(B_FALSE); 2736 } 2737 } 2738 2739 argc -= optind; 2740 argv += optind; 2741 2742 if (argc < 1) { 2743 (void) fprintf(stderr, gettext("missing dataset name\n")); 2744 usage(B_FALSE); 2745 } 2746 if (argc > 1) { 2747 (void) fprintf(stderr, gettext("too many arguments\n")); 2748 usage(B_FALSE); 2749 } 2750 2751 /* Use default output fields if not specified using -o */ 2752 if (ofield == NULL) 2753 ofield = deffields; 2754 do { 2755 if ((delim = strchr(ofield, ',')) != NULL) 2756 *delim = '\0'; 2757 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2758 (void) fprintf(stderr, gettext("invalid type '%s' " 2759 "for -o option\n"), ofield); 2760 return (-1); 2761 } 2762 if (delim != NULL) 2763 ofield = delim + 1; 2764 } while (delim != NULL); 2765 fields[cfield] = USFIELD_LAST; 2766 2767 /* Override output types (-t option) */ 2768 if (tfield != NULL) { 2769 types = 0; 2770 2771 do { 2772 boolean_t found = B_FALSE; 2773 2774 if ((delim = strchr(tfield, ',')) != NULL) 2775 *delim = '\0'; 2776 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2777 i++) { 2778 if (strcmp(tfield, us_type_names[i]) == 0) { 2779 found = B_TRUE; 2780 types |= us_type_bits[i]; 2781 break; 2782 } 2783 } 2784 if (!found) { 2785 (void) fprintf(stderr, gettext("invalid type " 2786 "'%s' for -t option\n"), tfield); 2787 return (-1); 2788 } 2789 if (delim != NULL) 2790 tfield = delim + 1; 2791 } while (delim != NULL); 2792 } 2793 2794 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2795 return (1); 2796 2797 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2798 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2799 nomem(); 2800 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2801 nomem(); 2802 2803 /* Always add default sorting columns */ 2804 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2805 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2806 2807 cb.cb_sortcol = sortcol; 2808 cb.cb_numname = prtnum; 2809 cb.cb_nicenum = !parsable; 2810 cb.cb_avl_pool = avl_pool; 2811 cb.cb_avl = avl_tree; 2812 cb.cb_sid2posix = sid2posix; 2813 2814 for (i = 0; i < USFIELD_LAST; i++) 2815 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2816 2817 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2818 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2819 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2820 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2821 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2822 continue; 2823 cb.cb_prop = p; 2824 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2825 return (ret); 2826 } 2827 2828 /* Sort the list */ 2829 if ((node = uu_avl_first(avl_tree)) == NULL) 2830 return (0); 2831 2832 us_populated = B_TRUE; 2833 2834 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2835 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2836 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2837 uu_list_node_init(node, &node->usn_listnode, listpool); 2838 2839 while (node != NULL) { 2840 rmnode = node; 2841 node = uu_avl_next(avl_tree, node); 2842 uu_avl_remove(avl_tree, rmnode); 2843 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2844 uu_list_insert(list, rmnode, idx2); 2845 } 2846 2847 for (node = uu_list_first(list); node != NULL; 2848 node = uu_list_next(list, node)) { 2849 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2850 2851 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2852 uu_avl_insert(avl_tree, node, idx); 2853 } 2854 2855 uu_list_destroy(list); 2856 uu_list_pool_destroy(listpool); 2857 2858 /* Print and free node nvlist memory */ 2859 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2860 cb.cb_avl); 2861 2862 zfs_free_sort_columns(sortcol); 2863 2864 /* Clean up the AVL tree */ 2865 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2866 nomem(); 2867 2868 while ((node = uu_avl_walk_next(walk)) != NULL) { 2869 uu_avl_remove(cb.cb_avl, node); 2870 free(node); 2871 } 2872 2873 uu_avl_walk_end(walk); 2874 uu_avl_destroy(avl_tree); 2875 uu_avl_pool_destroy(avl_pool); 2876 2877 return (ret); 2878 } 2879 2880 /* 2881 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2882 * [-t type[,...]] [filesystem|volume|snapshot] ... 2883 * 2884 * -H Scripted mode; elide headers and separate columns by tabs. 2885 * -p Display values in parsable (literal) format. 2886 * -r Recurse over all children. 2887 * -d Limit recursion by depth. 2888 * -o Control which fields to display. 2889 * -s Specify sort columns, descending order. 2890 * -S Specify sort columns, ascending order. 2891 * -t Control which object types to display. 2892 * 2893 * When given no arguments, list all filesystems in the system. 2894 * Otherwise, list the specified datasets, optionally recursing down them if 2895 * '-r' is specified. 2896 */ 2897 typedef struct list_cbdata { 2898 boolean_t cb_first; 2899 boolean_t cb_literal; 2900 boolean_t cb_scripted; 2901 zprop_list_t *cb_proplist; 2902 } list_cbdata_t; 2903 2904 /* 2905 * Given a list of columns to display, output appropriate headers for each one. 2906 */ 2907 static void 2908 print_header(list_cbdata_t *cb) 2909 { 2910 zprop_list_t *pl = cb->cb_proplist; 2911 char headerbuf[ZFS_MAXPROPLEN]; 2912 const char *header; 2913 int i; 2914 boolean_t first = B_TRUE; 2915 boolean_t right_justify; 2916 2917 for (; pl != NULL; pl = pl->pl_next) { 2918 if (!first) { 2919 (void) printf(" "); 2920 } else { 2921 first = B_FALSE; 2922 } 2923 2924 right_justify = B_FALSE; 2925 if (pl->pl_prop != ZPROP_INVAL) { 2926 header = zfs_prop_column_name(pl->pl_prop); 2927 right_justify = zfs_prop_align_right(pl->pl_prop); 2928 } else { 2929 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2930 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2931 headerbuf[i] = '\0'; 2932 header = headerbuf; 2933 } 2934 2935 if (pl->pl_next == NULL && !right_justify) 2936 (void) printf("%s", header); 2937 else if (right_justify) 2938 (void) printf("%*s", pl->pl_width, header); 2939 else 2940 (void) printf("%-*s", pl->pl_width, header); 2941 } 2942 2943 (void) printf("\n"); 2944 } 2945 2946 /* 2947 * Given a dataset and a list of fields, print out all the properties according 2948 * to the described layout. 2949 */ 2950 static void 2951 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2952 { 2953 zprop_list_t *pl = cb->cb_proplist; 2954 boolean_t first = B_TRUE; 2955 char property[ZFS_MAXPROPLEN]; 2956 nvlist_t *userprops = zfs_get_user_props(zhp); 2957 nvlist_t *propval; 2958 char *propstr; 2959 boolean_t right_justify; 2960 2961 for (; pl != NULL; pl = pl->pl_next) { 2962 if (!first) { 2963 if (cb->cb_scripted) 2964 (void) printf("\t"); 2965 else 2966 (void) printf(" "); 2967 } else { 2968 first = B_FALSE; 2969 } 2970 2971 if (pl->pl_prop != ZPROP_INVAL) { 2972 if (zfs_prop_get(zhp, pl->pl_prop, property, 2973 sizeof (property), NULL, NULL, 0, 2974 cb->cb_literal) != 0) 2975 propstr = "-"; 2976 else 2977 propstr = property; 2978 right_justify = zfs_prop_align_right(pl->pl_prop); 2979 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2980 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2981 property, sizeof (property), cb->cb_literal) != 0) 2982 propstr = "-"; 2983 else 2984 propstr = property; 2985 right_justify = B_TRUE; 2986 } else if (zfs_prop_written(pl->pl_user_prop)) { 2987 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2988 property, sizeof (property), cb->cb_literal) != 0) 2989 propstr = "-"; 2990 else 2991 propstr = property; 2992 right_justify = B_TRUE; 2993 } else { 2994 if (nvlist_lookup_nvlist(userprops, 2995 pl->pl_user_prop, &propval) != 0) 2996 propstr = "-"; 2997 else 2998 verify(nvlist_lookup_string(propval, 2999 ZPROP_VALUE, &propstr) == 0); 3000 right_justify = B_FALSE; 3001 } 3002 3003 /* 3004 * If this is being called in scripted mode, or if this is the 3005 * last column and it is left-justified, don't include a width 3006 * format specifier. 3007 */ 3008 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3009 (void) printf("%s", propstr); 3010 else if (right_justify) 3011 (void) printf("%*s", pl->pl_width, propstr); 3012 else 3013 (void) printf("%-*s", pl->pl_width, propstr); 3014 } 3015 3016 (void) printf("\n"); 3017 } 3018 3019 /* 3020 * Generic callback function to list a dataset or snapshot. 3021 */ 3022 static int 3023 list_callback(zfs_handle_t *zhp, void *data) 3024 { 3025 list_cbdata_t *cbp = data; 3026 3027 if (cbp->cb_first) { 3028 if (!cbp->cb_scripted) 3029 print_header(cbp); 3030 cbp->cb_first = B_FALSE; 3031 } 3032 3033 print_dataset(zhp, cbp); 3034 3035 return (0); 3036 } 3037 3038 static int 3039 zfs_do_list(int argc, char **argv) 3040 { 3041 int c; 3042 static char default_fields[] = 3043 "name,used,available,referenced,mountpoint"; 3044 int types = ZFS_TYPE_DATASET; 3045 boolean_t types_specified = B_FALSE; 3046 char *fields = NULL; 3047 list_cbdata_t cb = { 0 }; 3048 char *value; 3049 int limit = 0; 3050 int ret = 0; 3051 zfs_sort_column_t *sortcol = NULL; 3052 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3053 3054 /* check options */ 3055 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3056 switch (c) { 3057 case 'o': 3058 fields = optarg; 3059 break; 3060 case 'p': 3061 cb.cb_literal = B_TRUE; 3062 flags |= ZFS_ITER_LITERAL_PROPS; 3063 break; 3064 case 'd': 3065 limit = parse_depth(optarg, &flags); 3066 break; 3067 case 'r': 3068 flags |= ZFS_ITER_RECURSE; 3069 break; 3070 case 'H': 3071 cb.cb_scripted = B_TRUE; 3072 break; 3073 case 's': 3074 if (zfs_add_sort_column(&sortcol, optarg, 3075 B_FALSE) != 0) { 3076 (void) fprintf(stderr, 3077 gettext("invalid property '%s'\n"), optarg); 3078 usage(B_FALSE); 3079 } 3080 break; 3081 case 'S': 3082 if (zfs_add_sort_column(&sortcol, optarg, 3083 B_TRUE) != 0) { 3084 (void) fprintf(stderr, 3085 gettext("invalid property '%s'\n"), optarg); 3086 usage(B_FALSE); 3087 } 3088 break; 3089 case 't': 3090 types = 0; 3091 types_specified = B_TRUE; 3092 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3093 while (*optarg != '\0') { 3094 static char *type_subopts[] = { "filesystem", 3095 "volume", "snapshot", "snap", "bookmark", 3096 "all", NULL }; 3097 3098 switch (getsubopt(&optarg, type_subopts, 3099 &value)) { 3100 case 0: 3101 types |= ZFS_TYPE_FILESYSTEM; 3102 break; 3103 case 1: 3104 types |= ZFS_TYPE_VOLUME; 3105 break; 3106 case 2: 3107 case 3: 3108 types |= ZFS_TYPE_SNAPSHOT; 3109 break; 3110 case 4: 3111 types |= ZFS_TYPE_BOOKMARK; 3112 break; 3113 case 5: 3114 types = ZFS_TYPE_DATASET | 3115 ZFS_TYPE_BOOKMARK; 3116 break; 3117 default: 3118 (void) fprintf(stderr, 3119 gettext("invalid type '%s'\n"), 3120 value); 3121 usage(B_FALSE); 3122 } 3123 } 3124 break; 3125 case ':': 3126 (void) fprintf(stderr, gettext("missing argument for " 3127 "'%c' option\n"), optopt); 3128 usage(B_FALSE); 3129 break; 3130 case '?': 3131 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3132 optopt); 3133 usage(B_FALSE); 3134 } 3135 } 3136 3137 argc -= optind; 3138 argv += optind; 3139 3140 if (fields == NULL) 3141 fields = default_fields; 3142 3143 /* 3144 * If "-o space" and no types were specified, don't display snapshots. 3145 */ 3146 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3147 types &= ~ZFS_TYPE_SNAPSHOT; 3148 3149 /* 3150 * If the user specifies '-o all', the zprop_get_list() doesn't 3151 * normally include the name of the dataset. For 'zfs list', we always 3152 * want this property to be first. 3153 */ 3154 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3155 != 0) 3156 usage(B_FALSE); 3157 3158 cb.cb_first = B_TRUE; 3159 3160 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3161 limit, list_callback, &cb); 3162 3163 zprop_free_list(cb.cb_proplist); 3164 zfs_free_sort_columns(sortcol); 3165 3166 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3167 (void) printf(gettext("no datasets available\n")); 3168 3169 return (ret); 3170 } 3171 3172 /* 3173 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3174 * zfs rename [-f] -p <fs | vol> <fs | vol> 3175 * zfs rename -r <snap> <snap> 3176 * 3177 * Renames the given dataset to another of the same type. 3178 * 3179 * The '-p' flag creates all the non-existing ancestors of the target first. 3180 */ 3181 /* ARGSUSED */ 3182 static int 3183 zfs_do_rename(int argc, char **argv) 3184 { 3185 zfs_handle_t *zhp; 3186 int c; 3187 int ret = 0; 3188 boolean_t recurse = B_FALSE; 3189 boolean_t parents = B_FALSE; 3190 boolean_t force_unmount = B_FALSE; 3191 3192 /* check options */ 3193 while ((c = getopt(argc, argv, "prf")) != -1) { 3194 switch (c) { 3195 case 'p': 3196 parents = B_TRUE; 3197 break; 3198 case 'r': 3199 recurse = B_TRUE; 3200 break; 3201 case 'f': 3202 force_unmount = B_TRUE; 3203 break; 3204 case '?': 3205 default: 3206 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3207 optopt); 3208 usage(B_FALSE); 3209 } 3210 } 3211 3212 argc -= optind; 3213 argv += optind; 3214 3215 /* check number of arguments */ 3216 if (argc < 1) { 3217 (void) fprintf(stderr, gettext("missing source dataset " 3218 "argument\n")); 3219 usage(B_FALSE); 3220 } 3221 if (argc < 2) { 3222 (void) fprintf(stderr, gettext("missing target dataset " 3223 "argument\n")); 3224 usage(B_FALSE); 3225 } 3226 if (argc > 2) { 3227 (void) fprintf(stderr, gettext("too many arguments\n")); 3228 usage(B_FALSE); 3229 } 3230 3231 if (recurse && parents) { 3232 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3233 "exclusive\n")); 3234 usage(B_FALSE); 3235 } 3236 3237 if (recurse && strchr(argv[0], '@') == 0) { 3238 (void) fprintf(stderr, gettext("source dataset for recursive " 3239 "rename must be a snapshot\n")); 3240 usage(B_FALSE); 3241 } 3242 3243 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3244 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3245 return (1); 3246 3247 /* If we were asked and the name looks good, try to create ancestors. */ 3248 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3249 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3250 zfs_close(zhp); 3251 return (1); 3252 } 3253 3254 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3255 3256 zfs_close(zhp); 3257 return (ret); 3258 } 3259 3260 /* 3261 * zfs promote <fs> 3262 * 3263 * Promotes the given clone fs to be the parent 3264 */ 3265 /* ARGSUSED */ 3266 static int 3267 zfs_do_promote(int argc, char **argv) 3268 { 3269 zfs_handle_t *zhp; 3270 int ret = 0; 3271 3272 /* check options */ 3273 if (argc > 1 && argv[1][0] == '-') { 3274 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3275 argv[1][1]); 3276 usage(B_FALSE); 3277 } 3278 3279 /* check number of arguments */ 3280 if (argc < 2) { 3281 (void) fprintf(stderr, gettext("missing clone filesystem" 3282 " argument\n")); 3283 usage(B_FALSE); 3284 } 3285 if (argc > 2) { 3286 (void) fprintf(stderr, gettext("too many arguments\n")); 3287 usage(B_FALSE); 3288 } 3289 3290 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3291 if (zhp == NULL) 3292 return (1); 3293 3294 ret = (zfs_promote(zhp) != 0); 3295 3296 3297 zfs_close(zhp); 3298 return (ret); 3299 } 3300 3301 /* 3302 * zfs rollback [-rRf] <snapshot> 3303 * 3304 * -r Delete any intervening snapshots before doing rollback 3305 * -R Delete any snapshots and their clones 3306 * -f ignored for backwards compatability 3307 * 3308 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3309 * since then and making it the active dataset. If more recent snapshots exist, 3310 * the command will complain unless the '-r' flag is given. 3311 */ 3312 typedef struct rollback_cbdata { 3313 uint64_t cb_create; 3314 boolean_t cb_first; 3315 int cb_doclones; 3316 char *cb_target; 3317 int cb_error; 3318 boolean_t cb_recurse; 3319 } rollback_cbdata_t; 3320 3321 static int 3322 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3323 { 3324 rollback_cbdata_t *cbp = data; 3325 3326 if (cbp->cb_first && cbp->cb_recurse) { 3327 (void) fprintf(stderr, gettext("cannot rollback to " 3328 "'%s': clones of previous snapshots exist\n"), 3329 cbp->cb_target); 3330 (void) fprintf(stderr, gettext("use '-R' to " 3331 "force deletion of the following clones and " 3332 "dependents:\n")); 3333 cbp->cb_first = 0; 3334 cbp->cb_error = 1; 3335 } 3336 3337 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3338 3339 zfs_close(zhp); 3340 return (0); 3341 } 3342 3343 /* 3344 * Report any snapshots more recent than the one specified. Used when '-r' is 3345 * not specified. We reuse this same callback for the snapshot dependents - if 3346 * 'cb_dependent' is set, then this is a dependent and we should report it 3347 * without checking the transaction group. 3348 */ 3349 static int 3350 rollback_check(zfs_handle_t *zhp, void *data) 3351 { 3352 rollback_cbdata_t *cbp = data; 3353 3354 if (cbp->cb_doclones) { 3355 zfs_close(zhp); 3356 return (0); 3357 } 3358 3359 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3360 if (cbp->cb_first && !cbp->cb_recurse) { 3361 (void) fprintf(stderr, gettext("cannot " 3362 "rollback to '%s': more recent snapshots " 3363 "or bookmarks exist\n"), 3364 cbp->cb_target); 3365 (void) fprintf(stderr, gettext("use '-r' to " 3366 "force deletion of the following " 3367 "snapshots and bookmarks:\n")); 3368 cbp->cb_first = 0; 3369 cbp->cb_error = 1; 3370 } 3371 3372 if (cbp->cb_recurse) { 3373 if (zfs_iter_dependents(zhp, B_TRUE, 3374 rollback_check_dependent, cbp) != 0) { 3375 zfs_close(zhp); 3376 return (-1); 3377 } 3378 } else { 3379 (void) fprintf(stderr, "%s\n", 3380 zfs_get_name(zhp)); 3381 } 3382 } 3383 zfs_close(zhp); 3384 return (0); 3385 } 3386 3387 static int 3388 zfs_do_rollback(int argc, char **argv) 3389 { 3390 int ret = 0; 3391 int c; 3392 boolean_t force = B_FALSE; 3393 rollback_cbdata_t cb = { 0 }; 3394 zfs_handle_t *zhp, *snap; 3395 char parentname[ZFS_MAXNAMELEN]; 3396 char *delim; 3397 3398 /* check options */ 3399 while ((c = getopt(argc, argv, "rRf")) != -1) { 3400 switch (c) { 3401 case 'r': 3402 cb.cb_recurse = 1; 3403 break; 3404 case 'R': 3405 cb.cb_recurse = 1; 3406 cb.cb_doclones = 1; 3407 break; 3408 case 'f': 3409 force = B_TRUE; 3410 break; 3411 case '?': 3412 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3413 optopt); 3414 usage(B_FALSE); 3415 } 3416 } 3417 3418 argc -= optind; 3419 argv += optind; 3420 3421 /* check number of arguments */ 3422 if (argc < 1) { 3423 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3424 usage(B_FALSE); 3425 } 3426 if (argc > 1) { 3427 (void) fprintf(stderr, gettext("too many arguments\n")); 3428 usage(B_FALSE); 3429 } 3430 3431 /* open the snapshot */ 3432 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3433 return (1); 3434 3435 /* open the parent dataset */ 3436 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3437 verify((delim = strrchr(parentname, '@')) != NULL); 3438 *delim = '\0'; 3439 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3440 zfs_close(snap); 3441 return (1); 3442 } 3443 3444 /* 3445 * Check for more recent snapshots and/or clones based on the presence 3446 * of '-r' and '-R'. 3447 */ 3448 cb.cb_target = argv[0]; 3449 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3450 cb.cb_first = B_TRUE; 3451 cb.cb_error = 0; 3452 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3453 goto out; 3454 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3455 goto out; 3456 3457 if ((ret = cb.cb_error) != 0) 3458 goto out; 3459 3460 /* 3461 * Rollback parent to the given snapshot. 3462 */ 3463 ret = zfs_rollback(zhp, snap, force); 3464 3465 out: 3466 zfs_close(snap); 3467 zfs_close(zhp); 3468 3469 if (ret == 0) 3470 return (0); 3471 else 3472 return (1); 3473 } 3474 3475 /* 3476 * zfs set property=value ... { fs | snap | vol } ... 3477 * 3478 * Sets the given properties for all datasets specified on the command line. 3479 */ 3480 3481 static int 3482 set_callback(zfs_handle_t *zhp, void *data) 3483 { 3484 nvlist_t *props = data; 3485 3486 if (zfs_prop_set_list(zhp, props) != 0) { 3487 switch (libzfs_errno(g_zfs)) { 3488 case EZFS_MOUNTFAILED: 3489 (void) fprintf(stderr, gettext("property may be set " 3490 "but unable to remount filesystem\n")); 3491 break; 3492 case EZFS_SHARENFSFAILED: 3493 (void) fprintf(stderr, gettext("property may be set " 3494 "but unable to reshare filesystem\n")); 3495 break; 3496 } 3497 return (1); 3498 } 3499 return (0); 3500 } 3501 3502 static int 3503 zfs_do_set(int argc, char **argv) 3504 { 3505 nvlist_t *props = NULL; 3506 int ds_start = -1; /* argv idx of first dataset arg */ 3507 int ret = 0; 3508 3509 /* check for options */ 3510 if (argc > 1 && argv[1][0] == '-') { 3511 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3512 argv[1][1]); 3513 usage(B_FALSE); 3514 } 3515 3516 /* check number of arguments */ 3517 if (argc < 2) { 3518 (void) fprintf(stderr, gettext("missing arguments\n")); 3519 usage(B_FALSE); 3520 } 3521 if (argc < 3) { 3522 if (strchr(argv[1], '=') == NULL) { 3523 (void) fprintf(stderr, gettext("missing property=value " 3524 "argument(s)\n")); 3525 } else { 3526 (void) fprintf(stderr, gettext("missing dataset " 3527 "name(s)\n")); 3528 } 3529 usage(B_FALSE); 3530 } 3531 3532 /* validate argument order: prop=val args followed by dataset args */ 3533 for (int i = 1; i < argc; i++) { 3534 if (strchr(argv[i], '=') != NULL) { 3535 if (ds_start > 0) { 3536 /* out-of-order prop=val argument */ 3537 (void) fprintf(stderr, gettext("invalid " 3538 "argument order\n"), i); 3539 usage(B_FALSE); 3540 } 3541 } else if (ds_start < 0) { 3542 ds_start = i; 3543 } 3544 } 3545 if (ds_start < 0) { 3546 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3547 usage(B_FALSE); 3548 } 3549 3550 /* Populate a list of property settings */ 3551 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3552 nomem(); 3553 for (int i = 1; i < ds_start; i++) { 3554 if ((ret = parseprop(props, argv[i])) != 0) 3555 goto error; 3556 } 3557 3558 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3559 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3560 3561 error: 3562 nvlist_free(props); 3563 return (ret); 3564 } 3565 3566 typedef struct snap_cbdata { 3567 nvlist_t *sd_nvl; 3568 boolean_t sd_recursive; 3569 const char *sd_snapname; 3570 } snap_cbdata_t; 3571 3572 static int 3573 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3574 { 3575 snap_cbdata_t *sd = arg; 3576 char *name; 3577 int rv = 0; 3578 int error; 3579 3580 if (sd->sd_recursive && 3581 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3582 zfs_close(zhp); 3583 return (0); 3584 } 3585 3586 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3587 if (error == -1) 3588 nomem(); 3589 fnvlist_add_boolean(sd->sd_nvl, name); 3590 free(name); 3591 3592 if (sd->sd_recursive) 3593 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3594 zfs_close(zhp); 3595 return (rv); 3596 } 3597 3598 /* 3599 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3600 * 3601 * Creates a snapshot with the given name. While functionally equivalent to 3602 * 'zfs create', it is a separate command to differentiate intent. 3603 */ 3604 static int 3605 zfs_do_snapshot(int argc, char **argv) 3606 { 3607 int ret = 0; 3608 char c; 3609 nvlist_t *props; 3610 snap_cbdata_t sd = { 0 }; 3611 boolean_t multiple_snaps = B_FALSE; 3612 3613 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3614 nomem(); 3615 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3616 nomem(); 3617 3618 /* check options */ 3619 while ((c = getopt(argc, argv, "ro:")) != -1) { 3620 switch (c) { 3621 case 'o': 3622 if (parseprop(props, optarg) != 0) 3623 return (1); 3624 break; 3625 case 'r': 3626 sd.sd_recursive = B_TRUE; 3627 multiple_snaps = B_TRUE; 3628 break; 3629 case '?': 3630 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3631 optopt); 3632 goto usage; 3633 } 3634 } 3635 3636 argc -= optind; 3637 argv += optind; 3638 3639 /* check number of arguments */ 3640 if (argc < 1) { 3641 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3642 goto usage; 3643 } 3644 3645 if (argc > 1) 3646 multiple_snaps = B_TRUE; 3647 for (; argc > 0; argc--, argv++) { 3648 char *atp; 3649 zfs_handle_t *zhp; 3650 3651 atp = strchr(argv[0], '@'); 3652 if (atp == NULL) 3653 goto usage; 3654 *atp = '\0'; 3655 sd.sd_snapname = atp + 1; 3656 zhp = zfs_open(g_zfs, argv[0], 3657 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3658 if (zhp == NULL) 3659 goto usage; 3660 if (zfs_snapshot_cb(zhp, &sd) != 0) 3661 goto usage; 3662 } 3663 3664 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3665 nvlist_free(sd.sd_nvl); 3666 nvlist_free(props); 3667 if (ret != 0 && multiple_snaps) 3668 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3669 return (ret != 0); 3670 3671 usage: 3672 nvlist_free(sd.sd_nvl); 3673 nvlist_free(props); 3674 usage(B_FALSE); 3675 return (-1); 3676 } 3677 3678 /* 3679 * Send a backup stream to stdout. 3680 */ 3681 static int 3682 zfs_do_send(int argc, char **argv) 3683 { 3684 char *fromname = NULL; 3685 char *toname = NULL; 3686 char *resume_token = NULL; 3687 char *cp; 3688 zfs_handle_t *zhp; 3689 sendflags_t flags = { 0 }; 3690 int c, err; 3691 nvlist_t *dbgnv = NULL; 3692 boolean_t extraverbose = B_FALSE; 3693 3694 /* check options */ 3695 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3696 switch (c) { 3697 case 'i': 3698 if (fromname) 3699 usage(B_FALSE); 3700 fromname = optarg; 3701 break; 3702 case 'I': 3703 if (fromname) 3704 usage(B_FALSE); 3705 fromname = optarg; 3706 flags.doall = B_TRUE; 3707 break; 3708 case 'R': 3709 flags.replicate = B_TRUE; 3710 break; 3711 case 'p': 3712 flags.props = B_TRUE; 3713 break; 3714 case 'P': 3715 flags.parsable = B_TRUE; 3716 flags.verbose = B_TRUE; 3717 break; 3718 case 'v': 3719 if (flags.verbose) 3720 extraverbose = B_TRUE; 3721 flags.verbose = B_TRUE; 3722 flags.progress = B_TRUE; 3723 break; 3724 case 'D': 3725 flags.dedup = B_TRUE; 3726 break; 3727 case 'n': 3728 flags.dryrun = B_TRUE; 3729 break; 3730 case 'L': 3731 flags.largeblock = B_TRUE; 3732 break; 3733 case 'e': 3734 flags.embed_data = B_TRUE; 3735 break; 3736 case 't': 3737 resume_token = optarg; 3738 break; 3739 case ':': 3740 (void) fprintf(stderr, gettext("missing argument for " 3741 "'%c' option\n"), optopt); 3742 usage(B_FALSE); 3743 break; 3744 case '?': 3745 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3746 optopt); 3747 usage(B_FALSE); 3748 } 3749 } 3750 3751 argc -= optind; 3752 argv += optind; 3753 3754 if (resume_token != NULL) { 3755 if (fromname != NULL || flags.replicate || flags.props || 3756 flags.dedup) { 3757 (void) fprintf(stderr, 3758 gettext("invalid flags combined with -t\n")); 3759 usage(B_FALSE); 3760 } 3761 if (argc != 0) { 3762 (void) fprintf(stderr, gettext("no additional " 3763 "arguments are permitted with -t\n")); 3764 usage(B_FALSE); 3765 } 3766 } else { 3767 if (argc < 1) { 3768 (void) fprintf(stderr, 3769 gettext("missing snapshot argument\n")); 3770 usage(B_FALSE); 3771 } 3772 if (argc > 1) { 3773 (void) fprintf(stderr, gettext("too many arguments\n")); 3774 usage(B_FALSE); 3775 } 3776 } 3777 3778 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3779 (void) fprintf(stderr, 3780 gettext("Error: Stream can not be written to a terminal.\n" 3781 "You must redirect standard output.\n")); 3782 return (1); 3783 } 3784 3785 if (resume_token != NULL) { 3786 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3787 resume_token)); 3788 } 3789 3790 /* 3791 * Special case sending a filesystem, or from a bookmark. 3792 */ 3793 if (strchr(argv[0], '@') == NULL || 3794 (fromname && strchr(fromname, '#') != NULL)) { 3795 char frombuf[ZFS_MAXNAMELEN]; 3796 enum lzc_send_flags lzc_flags = 0; 3797 3798 if (flags.replicate || flags.doall || flags.props || 3799 flags.dedup || flags.dryrun || flags.verbose || 3800 flags.progress) { 3801 (void) fprintf(stderr, 3802 gettext("Error: " 3803 "Unsupported flag with filesystem or bookmark.\n")); 3804 return (1); 3805 } 3806 3807 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3808 if (zhp == NULL) 3809 return (1); 3810 3811 if (flags.largeblock) 3812 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3813 if (flags.embed_data) 3814 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3815 3816 if (fromname != NULL && 3817 (fromname[0] == '#' || fromname[0] == '@')) { 3818 /* 3819 * Incremental source name begins with # or @. 3820 * Default to same fs as target. 3821 */ 3822 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3823 cp = strchr(frombuf, '@'); 3824 if (cp != NULL) 3825 *cp = '\0'; 3826 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3827 fromname = frombuf; 3828 } 3829 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3830 zfs_close(zhp); 3831 return (err != 0); 3832 } 3833 3834 cp = strchr(argv[0], '@'); 3835 *cp = '\0'; 3836 toname = cp + 1; 3837 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3838 if (zhp == NULL) 3839 return (1); 3840 3841 /* 3842 * If they specified the full path to the snapshot, chop off 3843 * everything except the short name of the snapshot, but special 3844 * case if they specify the origin. 3845 */ 3846 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3847 char origin[ZFS_MAXNAMELEN]; 3848 zprop_source_t src; 3849 3850 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3851 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3852 3853 if (strcmp(origin, fromname) == 0) { 3854 fromname = NULL; 3855 flags.fromorigin = B_TRUE; 3856 } else { 3857 *cp = '\0'; 3858 if (cp != fromname && strcmp(argv[0], fromname)) { 3859 (void) fprintf(stderr, 3860 gettext("incremental source must be " 3861 "in same filesystem\n")); 3862 usage(B_FALSE); 3863 } 3864 fromname = cp + 1; 3865 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3866 (void) fprintf(stderr, 3867 gettext("invalid incremental source\n")); 3868 usage(B_FALSE); 3869 } 3870 } 3871 } 3872 3873 if (flags.replicate && fromname == NULL) 3874 flags.doall = B_TRUE; 3875 3876 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3877 extraverbose ? &dbgnv : NULL); 3878 3879 if (extraverbose && dbgnv != NULL) { 3880 /* 3881 * dump_nvlist prints to stdout, but that's been 3882 * redirected to a file. Make it print to stderr 3883 * instead. 3884 */ 3885 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3886 dump_nvlist(dbgnv, 0); 3887 nvlist_free(dbgnv); 3888 } 3889 zfs_close(zhp); 3890 3891 return (err != 0); 3892 } 3893 3894 /* 3895 * Restore a backup stream from stdin. 3896 */ 3897 static int 3898 zfs_do_receive(int argc, char **argv) 3899 { 3900 int c, err = 0; 3901 recvflags_t flags = { 0 }; 3902 boolean_t abort_resumable = B_FALSE; 3903 3904 nvlist_t *props; 3905 nvpair_t *nvp = NULL; 3906 3907 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3908 nomem(); 3909 3910 /* check options */ 3911 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3912 switch (c) { 3913 case 'o': 3914 if (parseprop(props, optarg) != 0) 3915 return (1); 3916 break; 3917 case 'd': 3918 flags.isprefix = B_TRUE; 3919 break; 3920 case 'e': 3921 flags.isprefix = B_TRUE; 3922 flags.istail = B_TRUE; 3923 break; 3924 case 'n': 3925 flags.dryrun = B_TRUE; 3926 break; 3927 case 'u': 3928 flags.nomount = B_TRUE; 3929 break; 3930 case 'v': 3931 flags.verbose = B_TRUE; 3932 break; 3933 case 's': 3934 flags.resumable = B_TRUE; 3935 break; 3936 case 'F': 3937 flags.force = B_TRUE; 3938 break; 3939 case 'A': 3940 abort_resumable = B_TRUE; 3941 break; 3942 case ':': 3943 (void) fprintf(stderr, gettext("missing argument for " 3944 "'%c' option\n"), optopt); 3945 usage(B_FALSE); 3946 break; 3947 case '?': 3948 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3949 optopt); 3950 usage(B_FALSE); 3951 } 3952 } 3953 3954 argc -= optind; 3955 argv += optind; 3956 3957 /* check number of arguments */ 3958 if (argc < 1) { 3959 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3960 usage(B_FALSE); 3961 } 3962 if (argc > 1) { 3963 (void) fprintf(stderr, gettext("too many arguments\n")); 3964 usage(B_FALSE); 3965 } 3966 3967 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3968 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3969 (void) fprintf(stderr, gettext("invalid option")); 3970 usage(B_FALSE); 3971 } 3972 } 3973 3974 if (abort_resumable) { 3975 if (flags.isprefix || flags.istail || flags.dryrun || 3976 flags.resumable || flags.nomount) { 3977 (void) fprintf(stderr, gettext("invalid option")); 3978 usage(B_FALSE); 3979 } 3980 3981 char namebuf[ZFS_MAXNAMELEN]; 3982 (void) snprintf(namebuf, sizeof (namebuf), 3983 "%s/%%recv", argv[0]); 3984 3985 if (zfs_dataset_exists(g_zfs, namebuf, 3986 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 3987 zfs_handle_t *zhp = zfs_open(g_zfs, 3988 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3989 if (zhp == NULL) 3990 return (1); 3991 err = zfs_destroy(zhp, B_FALSE); 3992 } else { 3993 zfs_handle_t *zhp = zfs_open(g_zfs, 3994 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3995 if (zhp == NULL) 3996 usage(B_FALSE); 3997 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 3998 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 3999 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4000 (void) fprintf(stderr, 4001 gettext("'%s' does not have any " 4002 "resumable receive state to abort\n"), 4003 argv[0]); 4004 return (1); 4005 } 4006 err = zfs_destroy(zhp, B_FALSE); 4007 } 4008 4009 return (err != 0); 4010 } 4011 4012 if (isatty(STDIN_FILENO)) { 4013 (void) fprintf(stderr, 4014 gettext("Error: Backup stream can not be read " 4015 "from a terminal.\n" 4016 "You must redirect standard input.\n")); 4017 return (1); 4018 } 4019 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4020 4021 return (err != 0); 4022 } 4023 4024 /* 4025 * allow/unallow stuff 4026 */ 4027 /* copied from zfs/sys/dsl_deleg.h */ 4028 #define ZFS_DELEG_PERM_CREATE "create" 4029 #define ZFS_DELEG_PERM_DESTROY "destroy" 4030 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4031 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4032 #define ZFS_DELEG_PERM_CLONE "clone" 4033 #define ZFS_DELEG_PERM_PROMOTE "promote" 4034 #define ZFS_DELEG_PERM_RENAME "rename" 4035 #define ZFS_DELEG_PERM_MOUNT "mount" 4036 #define ZFS_DELEG_PERM_SHARE "share" 4037 #define ZFS_DELEG_PERM_SEND "send" 4038 #define ZFS_DELEG_PERM_RECEIVE "receive" 4039 #define ZFS_DELEG_PERM_ALLOW "allow" 4040 #define ZFS_DELEG_PERM_USERPROP "userprop" 4041 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4042 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4043 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4044 #define ZFS_DELEG_PERM_USERUSED "userused" 4045 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4046 #define ZFS_DELEG_PERM_HOLD "hold" 4047 #define ZFS_DELEG_PERM_RELEASE "release" 4048 #define ZFS_DELEG_PERM_DIFF "diff" 4049 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4050 4051 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4052 4053 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4054 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4055 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4056 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4057 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4058 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4059 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4060 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4061 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4062 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4063 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4064 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4065 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4066 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4067 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4068 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4069 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4070 4071 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4072 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4073 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4074 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4075 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4076 { NULL, ZFS_DELEG_NOTE_NONE } 4077 }; 4078 4079 /* permission structure */ 4080 typedef struct deleg_perm { 4081 zfs_deleg_who_type_t dp_who_type; 4082 const char *dp_name; 4083 boolean_t dp_local; 4084 boolean_t dp_descend; 4085 } deleg_perm_t; 4086 4087 /* */ 4088 typedef struct deleg_perm_node { 4089 deleg_perm_t dpn_perm; 4090 4091 uu_avl_node_t dpn_avl_node; 4092 } deleg_perm_node_t; 4093 4094 typedef struct fs_perm fs_perm_t; 4095 4096 /* permissions set */ 4097 typedef struct who_perm { 4098 zfs_deleg_who_type_t who_type; 4099 const char *who_name; /* id */ 4100 char who_ug_name[256]; /* user/group name */ 4101 fs_perm_t *who_fsperm; /* uplink */ 4102 4103 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4104 } who_perm_t; 4105 4106 /* */ 4107 typedef struct who_perm_node { 4108 who_perm_t who_perm; 4109 uu_avl_node_t who_avl_node; 4110 } who_perm_node_t; 4111 4112 typedef struct fs_perm_set fs_perm_set_t; 4113 /* fs permissions */ 4114 struct fs_perm { 4115 const char *fsp_name; 4116 4117 uu_avl_t *fsp_sc_avl; /* sets,create */ 4118 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4119 4120 fs_perm_set_t *fsp_set; /* uplink */ 4121 }; 4122 4123 /* */ 4124 typedef struct fs_perm_node { 4125 fs_perm_t fspn_fsperm; 4126 uu_avl_t *fspn_avl; 4127 4128 uu_list_node_t fspn_list_node; 4129 } fs_perm_node_t; 4130 4131 /* top level structure */ 4132 struct fs_perm_set { 4133 uu_list_pool_t *fsps_list_pool; 4134 uu_list_t *fsps_list; /* list of fs_perms */ 4135 4136 uu_avl_pool_t *fsps_named_set_avl_pool; 4137 uu_avl_pool_t *fsps_who_perm_avl_pool; 4138 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4139 }; 4140 4141 static inline const char * 4142 deleg_perm_type(zfs_deleg_note_t note) 4143 { 4144 /* subcommands */ 4145 switch (note) { 4146 /* SUBCOMMANDS */ 4147 /* OTHER */ 4148 case ZFS_DELEG_NOTE_GROUPQUOTA: 4149 case ZFS_DELEG_NOTE_GROUPUSED: 4150 case ZFS_DELEG_NOTE_USERPROP: 4151 case ZFS_DELEG_NOTE_USERQUOTA: 4152 case ZFS_DELEG_NOTE_USERUSED: 4153 /* other */ 4154 return (gettext("other")); 4155 default: 4156 return (gettext("subcommand")); 4157 } 4158 } 4159 4160 static int 4161 who_type2weight(zfs_deleg_who_type_t who_type) 4162 { 4163 int res; 4164 switch (who_type) { 4165 case ZFS_DELEG_NAMED_SET_SETS: 4166 case ZFS_DELEG_NAMED_SET: 4167 res = 0; 4168 break; 4169 case ZFS_DELEG_CREATE_SETS: 4170 case ZFS_DELEG_CREATE: 4171 res = 1; 4172 break; 4173 case ZFS_DELEG_USER_SETS: 4174 case ZFS_DELEG_USER: 4175 res = 2; 4176 break; 4177 case ZFS_DELEG_GROUP_SETS: 4178 case ZFS_DELEG_GROUP: 4179 res = 3; 4180 break; 4181 case ZFS_DELEG_EVERYONE_SETS: 4182 case ZFS_DELEG_EVERYONE: 4183 res = 4; 4184 break; 4185 default: 4186 res = -1; 4187 } 4188 4189 return (res); 4190 } 4191 4192 /* ARGSUSED */ 4193 static int 4194 who_perm_compare(const void *larg, const void *rarg, void *unused) 4195 { 4196 const who_perm_node_t *l = larg; 4197 const who_perm_node_t *r = rarg; 4198 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4199 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4200 int lweight = who_type2weight(ltype); 4201 int rweight = who_type2weight(rtype); 4202 int res = lweight - rweight; 4203 if (res == 0) 4204 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4205 ZFS_MAX_DELEG_NAME-1); 4206 4207 if (res == 0) 4208 return (0); 4209 if (res > 0) 4210 return (1); 4211 else 4212 return (-1); 4213 } 4214 4215 /* ARGSUSED */ 4216 static int 4217 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4218 { 4219 const deleg_perm_node_t *l = larg; 4220 const deleg_perm_node_t *r = rarg; 4221 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4222 ZFS_MAX_DELEG_NAME-1); 4223 4224 if (res == 0) 4225 return (0); 4226 4227 if (res > 0) 4228 return (1); 4229 else 4230 return (-1); 4231 } 4232 4233 static inline void 4234 fs_perm_set_init(fs_perm_set_t *fspset) 4235 { 4236 bzero(fspset, sizeof (fs_perm_set_t)); 4237 4238 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4239 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4240 NULL, UU_DEFAULT)) == NULL) 4241 nomem(); 4242 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4243 UU_DEFAULT)) == NULL) 4244 nomem(); 4245 4246 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4247 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4248 who_perm_node_t, who_avl_node), who_perm_compare, 4249 UU_DEFAULT)) == NULL) 4250 nomem(); 4251 4252 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4253 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4254 who_perm_node_t, who_avl_node), who_perm_compare, 4255 UU_DEFAULT)) == NULL) 4256 nomem(); 4257 4258 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4259 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4260 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4261 == NULL) 4262 nomem(); 4263 } 4264 4265 static inline void fs_perm_fini(fs_perm_t *); 4266 static inline void who_perm_fini(who_perm_t *); 4267 4268 static inline void 4269 fs_perm_set_fini(fs_perm_set_t *fspset) 4270 { 4271 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4272 4273 while (node != NULL) { 4274 fs_perm_node_t *next_node = 4275 uu_list_next(fspset->fsps_list, node); 4276 fs_perm_t *fsperm = &node->fspn_fsperm; 4277 fs_perm_fini(fsperm); 4278 uu_list_remove(fspset->fsps_list, node); 4279 free(node); 4280 node = next_node; 4281 } 4282 4283 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4284 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4285 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4286 } 4287 4288 static inline void 4289 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4290 const char *name) 4291 { 4292 deleg_perm->dp_who_type = type; 4293 deleg_perm->dp_name = name; 4294 } 4295 4296 static inline void 4297 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4298 zfs_deleg_who_type_t type, const char *name) 4299 { 4300 uu_avl_pool_t *pool; 4301 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4302 4303 bzero(who_perm, sizeof (who_perm_t)); 4304 4305 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4306 UU_DEFAULT)) == NULL) 4307 nomem(); 4308 4309 who_perm->who_type = type; 4310 who_perm->who_name = name; 4311 who_perm->who_fsperm = fsperm; 4312 } 4313 4314 static inline void 4315 who_perm_fini(who_perm_t *who_perm) 4316 { 4317 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4318 4319 while (node != NULL) { 4320 deleg_perm_node_t *next_node = 4321 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4322 4323 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4324 free(node); 4325 node = next_node; 4326 } 4327 4328 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4329 } 4330 4331 static inline void 4332 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4333 { 4334 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4335 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4336 4337 bzero(fsperm, sizeof (fs_perm_t)); 4338 4339 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4340 == NULL) 4341 nomem(); 4342 4343 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4344 == NULL) 4345 nomem(); 4346 4347 fsperm->fsp_set = fspset; 4348 fsperm->fsp_name = fsname; 4349 } 4350 4351 static inline void 4352 fs_perm_fini(fs_perm_t *fsperm) 4353 { 4354 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4355 while (node != NULL) { 4356 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4357 node); 4358 who_perm_t *who_perm = &node->who_perm; 4359 who_perm_fini(who_perm); 4360 uu_avl_remove(fsperm->fsp_sc_avl, node); 4361 free(node); 4362 node = next_node; 4363 } 4364 4365 node = uu_avl_first(fsperm->fsp_uge_avl); 4366 while (node != NULL) { 4367 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4368 node); 4369 who_perm_t *who_perm = &node->who_perm; 4370 who_perm_fini(who_perm); 4371 uu_avl_remove(fsperm->fsp_uge_avl, node); 4372 free(node); 4373 node = next_node; 4374 } 4375 4376 uu_avl_destroy(fsperm->fsp_sc_avl); 4377 uu_avl_destroy(fsperm->fsp_uge_avl); 4378 } 4379 4380 static void 4381 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4382 zfs_deleg_who_type_t who_type, const char *name, char locality) 4383 { 4384 uu_avl_index_t idx = 0; 4385 4386 deleg_perm_node_t *found_node = NULL; 4387 deleg_perm_t *deleg_perm = &node->dpn_perm; 4388 4389 deleg_perm_init(deleg_perm, who_type, name); 4390 4391 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4392 == NULL) 4393 uu_avl_insert(avl, node, idx); 4394 else { 4395 node = found_node; 4396 deleg_perm = &node->dpn_perm; 4397 } 4398 4399 4400 switch (locality) { 4401 case ZFS_DELEG_LOCAL: 4402 deleg_perm->dp_local = B_TRUE; 4403 break; 4404 case ZFS_DELEG_DESCENDENT: 4405 deleg_perm->dp_descend = B_TRUE; 4406 break; 4407 case ZFS_DELEG_NA: 4408 break; 4409 default: 4410 assert(B_FALSE); /* invalid locality */ 4411 } 4412 } 4413 4414 static inline int 4415 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4416 { 4417 nvpair_t *nvp = NULL; 4418 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4419 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4420 zfs_deleg_who_type_t who_type = who_perm->who_type; 4421 4422 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4423 const char *name = nvpair_name(nvp); 4424 data_type_t type = nvpair_type(nvp); 4425 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4426 deleg_perm_node_t *node = 4427 safe_malloc(sizeof (deleg_perm_node_t)); 4428 4429 assert(type == DATA_TYPE_BOOLEAN); 4430 4431 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4432 set_deleg_perm_node(avl, node, who_type, name, locality); 4433 } 4434 4435 return (0); 4436 } 4437 4438 static inline int 4439 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4440 { 4441 nvpair_t *nvp = NULL; 4442 fs_perm_set_t *fspset = fsperm->fsp_set; 4443 4444 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4445 nvlist_t *nvl2 = NULL; 4446 const char *name = nvpair_name(nvp); 4447 uu_avl_t *avl = NULL; 4448 uu_avl_pool_t *avl_pool = NULL; 4449 zfs_deleg_who_type_t perm_type = name[0]; 4450 char perm_locality = name[1]; 4451 const char *perm_name = name + 3; 4452 boolean_t is_set = B_TRUE; 4453 who_perm_t *who_perm = NULL; 4454 4455 assert('$' == name[2]); 4456 4457 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4458 return (-1); 4459 4460 switch (perm_type) { 4461 case ZFS_DELEG_CREATE: 4462 case ZFS_DELEG_CREATE_SETS: 4463 case ZFS_DELEG_NAMED_SET: 4464 case ZFS_DELEG_NAMED_SET_SETS: 4465 avl_pool = fspset->fsps_named_set_avl_pool; 4466 avl = fsperm->fsp_sc_avl; 4467 break; 4468 case ZFS_DELEG_USER: 4469 case ZFS_DELEG_USER_SETS: 4470 case ZFS_DELEG_GROUP: 4471 case ZFS_DELEG_GROUP_SETS: 4472 case ZFS_DELEG_EVERYONE: 4473 case ZFS_DELEG_EVERYONE_SETS: 4474 avl_pool = fspset->fsps_who_perm_avl_pool; 4475 avl = fsperm->fsp_uge_avl; 4476 break; 4477 4478 default: 4479 assert(!"unhandled zfs_deleg_who_type_t"); 4480 } 4481 4482 if (is_set) { 4483 who_perm_node_t *found_node = NULL; 4484 who_perm_node_t *node = safe_malloc( 4485 sizeof (who_perm_node_t)); 4486 who_perm = &node->who_perm; 4487 uu_avl_index_t idx = 0; 4488 4489 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4490 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4491 4492 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4493 == NULL) { 4494 if (avl == fsperm->fsp_uge_avl) { 4495 uid_t rid = 0; 4496 struct passwd *p = NULL; 4497 struct group *g = NULL; 4498 const char *nice_name = NULL; 4499 4500 switch (perm_type) { 4501 case ZFS_DELEG_USER_SETS: 4502 case ZFS_DELEG_USER: 4503 rid = atoi(perm_name); 4504 p = getpwuid(rid); 4505 if (p) 4506 nice_name = p->pw_name; 4507 break; 4508 case ZFS_DELEG_GROUP_SETS: 4509 case ZFS_DELEG_GROUP: 4510 rid = atoi(perm_name); 4511 g = getgrgid(rid); 4512 if (g) 4513 nice_name = g->gr_name; 4514 break; 4515 4516 default: 4517 break; 4518 } 4519 4520 if (nice_name != NULL) 4521 (void) strlcpy( 4522 node->who_perm.who_ug_name, 4523 nice_name, 256); 4524 } 4525 4526 uu_avl_insert(avl, node, idx); 4527 } else { 4528 node = found_node; 4529 who_perm = &node->who_perm; 4530 } 4531 } 4532 4533 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4534 } 4535 4536 return (0); 4537 } 4538 4539 static inline int 4540 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4541 { 4542 nvpair_t *nvp = NULL; 4543 uu_avl_index_t idx = 0; 4544 4545 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4546 nvlist_t *nvl2 = NULL; 4547 const char *fsname = nvpair_name(nvp); 4548 data_type_t type = nvpair_type(nvp); 4549 fs_perm_t *fsperm = NULL; 4550 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4551 if (node == NULL) 4552 nomem(); 4553 4554 fsperm = &node->fspn_fsperm; 4555 4556 assert(DATA_TYPE_NVLIST == type); 4557 4558 uu_list_node_init(node, &node->fspn_list_node, 4559 fspset->fsps_list_pool); 4560 4561 idx = uu_list_numnodes(fspset->fsps_list); 4562 fs_perm_init(fsperm, fspset, fsname); 4563 4564 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4565 return (-1); 4566 4567 (void) parse_fs_perm(fsperm, nvl2); 4568 4569 uu_list_insert(fspset->fsps_list, node, idx); 4570 } 4571 4572 return (0); 4573 } 4574 4575 static inline const char * 4576 deleg_perm_comment(zfs_deleg_note_t note) 4577 { 4578 const char *str = ""; 4579 4580 /* subcommands */ 4581 switch (note) { 4582 /* SUBCOMMANDS */ 4583 case ZFS_DELEG_NOTE_ALLOW: 4584 str = gettext("Must also have the permission that is being" 4585 "\n\t\t\t\tallowed"); 4586 break; 4587 case ZFS_DELEG_NOTE_CLONE: 4588 str = gettext("Must also have the 'create' ability and 'mount'" 4589 "\n\t\t\t\tability in the origin file system"); 4590 break; 4591 case ZFS_DELEG_NOTE_CREATE: 4592 str = gettext("Must also have the 'mount' ability"); 4593 break; 4594 case ZFS_DELEG_NOTE_DESTROY: 4595 str = gettext("Must also have the 'mount' ability"); 4596 break; 4597 case ZFS_DELEG_NOTE_DIFF: 4598 str = gettext("Allows lookup of paths within a dataset;" 4599 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4600 "\n\t\t\t\tin order to use zfs diff"); 4601 break; 4602 case ZFS_DELEG_NOTE_HOLD: 4603 str = gettext("Allows adding a user hold to a snapshot"); 4604 break; 4605 case ZFS_DELEG_NOTE_MOUNT: 4606 str = gettext("Allows mount/umount of ZFS datasets"); 4607 break; 4608 case ZFS_DELEG_NOTE_PROMOTE: 4609 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4610 " 'promote' ability in the origin file system"); 4611 break; 4612 case ZFS_DELEG_NOTE_RECEIVE: 4613 str = gettext("Must also have the 'mount' and 'create'" 4614 " ability"); 4615 break; 4616 case ZFS_DELEG_NOTE_RELEASE: 4617 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4618 "might destroy the snapshot"); 4619 break; 4620 case ZFS_DELEG_NOTE_RENAME: 4621 str = gettext("Must also have the 'mount' and 'create'" 4622 "\n\t\t\t\tability in the new parent"); 4623 break; 4624 case ZFS_DELEG_NOTE_ROLLBACK: 4625 str = gettext(""); 4626 break; 4627 case ZFS_DELEG_NOTE_SEND: 4628 str = gettext(""); 4629 break; 4630 case ZFS_DELEG_NOTE_SHARE: 4631 str = gettext("Allows sharing file systems over NFS or SMB" 4632 "\n\t\t\t\tprotocols"); 4633 break; 4634 case ZFS_DELEG_NOTE_SNAPSHOT: 4635 str = gettext(""); 4636 break; 4637 /* 4638 * case ZFS_DELEG_NOTE_VSCAN: 4639 * str = gettext(""); 4640 * break; 4641 */ 4642 /* OTHER */ 4643 case ZFS_DELEG_NOTE_GROUPQUOTA: 4644 str = gettext("Allows accessing any groupquota@... property"); 4645 break; 4646 case ZFS_DELEG_NOTE_GROUPUSED: 4647 str = gettext("Allows reading any groupused@... property"); 4648 break; 4649 case ZFS_DELEG_NOTE_USERPROP: 4650 str = gettext("Allows changing any user property"); 4651 break; 4652 case ZFS_DELEG_NOTE_USERQUOTA: 4653 str = gettext("Allows accessing any userquota@... property"); 4654 break; 4655 case ZFS_DELEG_NOTE_USERUSED: 4656 str = gettext("Allows reading any userused@... property"); 4657 break; 4658 /* other */ 4659 default: 4660 str = ""; 4661 } 4662 4663 return (str); 4664 } 4665 4666 struct allow_opts { 4667 boolean_t local; 4668 boolean_t descend; 4669 boolean_t user; 4670 boolean_t group; 4671 boolean_t everyone; 4672 boolean_t create; 4673 boolean_t set; 4674 boolean_t recursive; /* unallow only */ 4675 boolean_t prt_usage; 4676 4677 boolean_t prt_perms; 4678 char *who; 4679 char *perms; 4680 const char *dataset; 4681 }; 4682 4683 static inline int 4684 prop_cmp(const void *a, const void *b) 4685 { 4686 const char *str1 = *(const char **)a; 4687 const char *str2 = *(const char **)b; 4688 return (strcmp(str1, str2)); 4689 } 4690 4691 static void 4692 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4693 { 4694 const char *opt_desc[] = { 4695 "-h", gettext("show this help message and exit"), 4696 "-l", gettext("set permission locally"), 4697 "-d", gettext("set permission for descents"), 4698 "-u", gettext("set permission for user"), 4699 "-g", gettext("set permission for group"), 4700 "-e", gettext("set permission for everyone"), 4701 "-c", gettext("set create time permission"), 4702 "-s", gettext("define permission set"), 4703 /* unallow only */ 4704 "-r", gettext("remove permissions recursively"), 4705 }; 4706 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4707 size_t allow_size = unallow_size - 2; 4708 const char *props[ZFS_NUM_PROPS]; 4709 int i; 4710 size_t count = 0; 4711 FILE *fp = requested ? stdout : stderr; 4712 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4713 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4714 4715 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4716 HELP_ALLOW)); 4717 (void) fprintf(fp, gettext("Options:\n")); 4718 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4719 const char *opt = opt_desc[i++]; 4720 const char *optdsc = opt_desc[i]; 4721 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4722 } 4723 4724 (void) fprintf(fp, gettext("\nThe following permissions are " 4725 "supported:\n\n")); 4726 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4727 gettext("NOTES")); 4728 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4729 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4730 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4731 const char *perm_type = deleg_perm_type(perm_note); 4732 const char *perm_comment = deleg_perm_comment(perm_note); 4733 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4734 } 4735 4736 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4737 zprop_desc_t *pd = &pdtbl[i]; 4738 if (pd->pd_visible != B_TRUE) 4739 continue; 4740 4741 if (pd->pd_attr == PROP_READONLY) 4742 continue; 4743 4744 props[count++] = pd->pd_name; 4745 } 4746 props[count] = NULL; 4747 4748 qsort(props, count, sizeof (char *), prop_cmp); 4749 4750 for (i = 0; i < count; i++) 4751 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4752 4753 if (msg != NULL) 4754 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4755 4756 exit(requested ? 0 : 2); 4757 } 4758 4759 static inline const char * 4760 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4761 char **permsp) 4762 { 4763 if (un && argc == expected_argc - 1) 4764 *permsp = NULL; 4765 else if (argc == expected_argc) 4766 *permsp = argv[argc - 2]; 4767 else 4768 allow_usage(un, B_FALSE, 4769 gettext("wrong number of parameters\n")); 4770 4771 return (argv[argc - 1]); 4772 } 4773 4774 static void 4775 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4776 { 4777 int uge_sum = opts->user + opts->group + opts->everyone; 4778 int csuge_sum = opts->create + opts->set + uge_sum; 4779 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4780 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4781 4782 if (uge_sum > 1) 4783 allow_usage(un, B_FALSE, 4784 gettext("-u, -g, and -e are mutually exclusive\n")); 4785 4786 if (opts->prt_usage) { 4787 if (argc == 0 && all_sum == 0) 4788 allow_usage(un, B_TRUE, NULL); 4789 else 4790 usage(B_FALSE); 4791 } 4792 4793 if (opts->set) { 4794 if (csuge_sum > 1) 4795 allow_usage(un, B_FALSE, 4796 gettext("invalid options combined with -s\n")); 4797 4798 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4799 if (argv[0][0] != '@') 4800 allow_usage(un, B_FALSE, 4801 gettext("invalid set name: missing '@' prefix\n")); 4802 opts->who = argv[0]; 4803 } else if (opts->create) { 4804 if (ldcsuge_sum > 1) 4805 allow_usage(un, B_FALSE, 4806 gettext("invalid options combined with -c\n")); 4807 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4808 } else if (opts->everyone) { 4809 if (csuge_sum > 1) 4810 allow_usage(un, B_FALSE, 4811 gettext("invalid options combined with -e\n")); 4812 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4813 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4814 == 0) { 4815 opts->everyone = B_TRUE; 4816 argc--; 4817 argv++; 4818 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4819 } else if (argc == 1 && !un) { 4820 opts->prt_perms = B_TRUE; 4821 opts->dataset = argv[argc-1]; 4822 } else { 4823 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4824 opts->who = argv[0]; 4825 } 4826 4827 if (!opts->local && !opts->descend) { 4828 opts->local = B_TRUE; 4829 opts->descend = B_TRUE; 4830 } 4831 } 4832 4833 static void 4834 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4835 const char *who, char *perms, nvlist_t *top_nvl) 4836 { 4837 int i; 4838 char ld[2] = { '\0', '\0' }; 4839 char who_buf[ZFS_MAXNAMELEN+32]; 4840 char base_type = '\0'; 4841 char set_type = '\0'; 4842 nvlist_t *base_nvl = NULL; 4843 nvlist_t *set_nvl = NULL; 4844 nvlist_t *nvl; 4845 4846 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4847 nomem(); 4848 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4849 nomem(); 4850 4851 switch (type) { 4852 case ZFS_DELEG_NAMED_SET_SETS: 4853 case ZFS_DELEG_NAMED_SET: 4854 set_type = ZFS_DELEG_NAMED_SET_SETS; 4855 base_type = ZFS_DELEG_NAMED_SET; 4856 ld[0] = ZFS_DELEG_NA; 4857 break; 4858 case ZFS_DELEG_CREATE_SETS: 4859 case ZFS_DELEG_CREATE: 4860 set_type = ZFS_DELEG_CREATE_SETS; 4861 base_type = ZFS_DELEG_CREATE; 4862 ld[0] = ZFS_DELEG_NA; 4863 break; 4864 case ZFS_DELEG_USER_SETS: 4865 case ZFS_DELEG_USER: 4866 set_type = ZFS_DELEG_USER_SETS; 4867 base_type = ZFS_DELEG_USER; 4868 if (local) 4869 ld[0] = ZFS_DELEG_LOCAL; 4870 if (descend) 4871 ld[1] = ZFS_DELEG_DESCENDENT; 4872 break; 4873 case ZFS_DELEG_GROUP_SETS: 4874 case ZFS_DELEG_GROUP: 4875 set_type = ZFS_DELEG_GROUP_SETS; 4876 base_type = ZFS_DELEG_GROUP; 4877 if (local) 4878 ld[0] = ZFS_DELEG_LOCAL; 4879 if (descend) 4880 ld[1] = ZFS_DELEG_DESCENDENT; 4881 break; 4882 case ZFS_DELEG_EVERYONE_SETS: 4883 case ZFS_DELEG_EVERYONE: 4884 set_type = ZFS_DELEG_EVERYONE_SETS; 4885 base_type = ZFS_DELEG_EVERYONE; 4886 if (local) 4887 ld[0] = ZFS_DELEG_LOCAL; 4888 if (descend) 4889 ld[1] = ZFS_DELEG_DESCENDENT; 4890 break; 4891 4892 default: 4893 assert(set_type != '\0' && base_type != '\0'); 4894 } 4895 4896 if (perms != NULL) { 4897 char *curr = perms; 4898 char *end = curr + strlen(perms); 4899 4900 while (curr < end) { 4901 char *delim = strchr(curr, ','); 4902 if (delim == NULL) 4903 delim = end; 4904 else 4905 *delim = '\0'; 4906 4907 if (curr[0] == '@') 4908 nvl = set_nvl; 4909 else 4910 nvl = base_nvl; 4911 4912 (void) nvlist_add_boolean(nvl, curr); 4913 if (delim != end) 4914 *delim = ','; 4915 curr = delim + 1; 4916 } 4917 4918 for (i = 0; i < 2; i++) { 4919 char locality = ld[i]; 4920 if (locality == 0) 4921 continue; 4922 4923 if (!nvlist_empty(base_nvl)) { 4924 if (who != NULL) 4925 (void) snprintf(who_buf, 4926 sizeof (who_buf), "%c%c$%s", 4927 base_type, locality, who); 4928 else 4929 (void) snprintf(who_buf, 4930 sizeof (who_buf), "%c%c$", 4931 base_type, locality); 4932 4933 (void) nvlist_add_nvlist(top_nvl, who_buf, 4934 base_nvl); 4935 } 4936 4937 4938 if (!nvlist_empty(set_nvl)) { 4939 if (who != NULL) 4940 (void) snprintf(who_buf, 4941 sizeof (who_buf), "%c%c$%s", 4942 set_type, locality, who); 4943 else 4944 (void) snprintf(who_buf, 4945 sizeof (who_buf), "%c%c$", 4946 set_type, locality); 4947 4948 (void) nvlist_add_nvlist(top_nvl, who_buf, 4949 set_nvl); 4950 } 4951 } 4952 } else { 4953 for (i = 0; i < 2; i++) { 4954 char locality = ld[i]; 4955 if (locality == 0) 4956 continue; 4957 4958 if (who != NULL) 4959 (void) snprintf(who_buf, sizeof (who_buf), 4960 "%c%c$%s", base_type, locality, who); 4961 else 4962 (void) snprintf(who_buf, sizeof (who_buf), 4963 "%c%c$", base_type, locality); 4964 (void) nvlist_add_boolean(top_nvl, who_buf); 4965 4966 if (who != NULL) 4967 (void) snprintf(who_buf, sizeof (who_buf), 4968 "%c%c$%s", set_type, locality, who); 4969 else 4970 (void) snprintf(who_buf, sizeof (who_buf), 4971 "%c%c$", set_type, locality); 4972 (void) nvlist_add_boolean(top_nvl, who_buf); 4973 } 4974 } 4975 } 4976 4977 static int 4978 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4979 { 4980 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4981 nomem(); 4982 4983 if (opts->set) { 4984 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4985 opts->descend, opts->who, opts->perms, *nvlp); 4986 } else if (opts->create) { 4987 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4988 opts->descend, NULL, opts->perms, *nvlp); 4989 } else if (opts->everyone) { 4990 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4991 opts->descend, NULL, opts->perms, *nvlp); 4992 } else { 4993 char *curr = opts->who; 4994 char *end = curr + strlen(curr); 4995 4996 while (curr < end) { 4997 const char *who; 4998 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 4999 char *endch; 5000 char *delim = strchr(curr, ','); 5001 char errbuf[256]; 5002 char id[64]; 5003 struct passwd *p = NULL; 5004 struct group *g = NULL; 5005 5006 uid_t rid; 5007 if (delim == NULL) 5008 delim = end; 5009 else 5010 *delim = '\0'; 5011 5012 rid = (uid_t)strtol(curr, &endch, 0); 5013 if (opts->user) { 5014 who_type = ZFS_DELEG_USER; 5015 if (*endch != '\0') 5016 p = getpwnam(curr); 5017 else 5018 p = getpwuid(rid); 5019 5020 if (p != NULL) 5021 rid = p->pw_uid; 5022 else { 5023 (void) snprintf(errbuf, 256, gettext( 5024 "invalid user %s"), curr); 5025 allow_usage(un, B_TRUE, errbuf); 5026 } 5027 } else if (opts->group) { 5028 who_type = ZFS_DELEG_GROUP; 5029 if (*endch != '\0') 5030 g = getgrnam(curr); 5031 else 5032 g = getgrgid(rid); 5033 5034 if (g != NULL) 5035 rid = g->gr_gid; 5036 else { 5037 (void) snprintf(errbuf, 256, gettext( 5038 "invalid group %s"), curr); 5039 allow_usage(un, B_TRUE, errbuf); 5040 } 5041 } else { 5042 if (*endch != '\0') { 5043 p = getpwnam(curr); 5044 } else { 5045 p = getpwuid(rid); 5046 } 5047 5048 if (p == NULL) { 5049 if (*endch != '\0') { 5050 g = getgrnam(curr); 5051 } else { 5052 g = getgrgid(rid); 5053 } 5054 } 5055 5056 if (p != NULL) { 5057 who_type = ZFS_DELEG_USER; 5058 rid = p->pw_uid; 5059 } else if (g != NULL) { 5060 who_type = ZFS_DELEG_GROUP; 5061 rid = g->gr_gid; 5062 } else { 5063 (void) snprintf(errbuf, 256, gettext( 5064 "invalid user/group %s"), curr); 5065 allow_usage(un, B_TRUE, errbuf); 5066 } 5067 } 5068 5069 (void) sprintf(id, "%u", rid); 5070 who = id; 5071 5072 store_allow_perm(who_type, opts->local, 5073 opts->descend, who, opts->perms, *nvlp); 5074 curr = delim + 1; 5075 } 5076 } 5077 5078 return (0); 5079 } 5080 5081 static void 5082 print_set_creat_perms(uu_avl_t *who_avl) 5083 { 5084 const char *sc_title[] = { 5085 gettext("Permission sets:\n"), 5086 gettext("Create time permissions:\n"), 5087 NULL 5088 }; 5089 const char **title_ptr = sc_title; 5090 who_perm_node_t *who_node = NULL; 5091 int prev_weight = -1; 5092 5093 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5094 who_node = uu_avl_next(who_avl, who_node)) { 5095 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5096 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5097 const char *who_name = who_node->who_perm.who_name; 5098 int weight = who_type2weight(who_type); 5099 boolean_t first = B_TRUE; 5100 deleg_perm_node_t *deleg_node; 5101 5102 if (prev_weight != weight) { 5103 (void) printf(*title_ptr++); 5104 prev_weight = weight; 5105 } 5106 5107 if (who_name == NULL || strnlen(who_name, 1) == 0) 5108 (void) printf("\t"); 5109 else 5110 (void) printf("\t%s ", who_name); 5111 5112 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5113 deleg_node = uu_avl_next(avl, deleg_node)) { 5114 if (first) { 5115 (void) printf("%s", 5116 deleg_node->dpn_perm.dp_name); 5117 first = B_FALSE; 5118 } else 5119 (void) printf(",%s", 5120 deleg_node->dpn_perm.dp_name); 5121 } 5122 5123 (void) printf("\n"); 5124 } 5125 } 5126 5127 static void 5128 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5129 const char *title) 5130 { 5131 who_perm_node_t *who_node = NULL; 5132 boolean_t prt_title = B_TRUE; 5133 uu_avl_walk_t *walk; 5134 5135 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5136 nomem(); 5137 5138 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5139 const char *who_name = who_node->who_perm.who_name; 5140 const char *nice_who_name = who_node->who_perm.who_ug_name; 5141 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5142 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5143 char delim = ' '; 5144 deleg_perm_node_t *deleg_node; 5145 boolean_t prt_who = B_TRUE; 5146 5147 for (deleg_node = uu_avl_first(avl); 5148 deleg_node != NULL; 5149 deleg_node = uu_avl_next(avl, deleg_node)) { 5150 if (local != deleg_node->dpn_perm.dp_local || 5151 descend != deleg_node->dpn_perm.dp_descend) 5152 continue; 5153 5154 if (prt_who) { 5155 const char *who = NULL; 5156 if (prt_title) { 5157 prt_title = B_FALSE; 5158 (void) printf(title); 5159 } 5160 5161 switch (who_type) { 5162 case ZFS_DELEG_USER_SETS: 5163 case ZFS_DELEG_USER: 5164 who = gettext("user"); 5165 if (nice_who_name) 5166 who_name = nice_who_name; 5167 break; 5168 case ZFS_DELEG_GROUP_SETS: 5169 case ZFS_DELEG_GROUP: 5170 who = gettext("group"); 5171 if (nice_who_name) 5172 who_name = nice_who_name; 5173 break; 5174 case ZFS_DELEG_EVERYONE_SETS: 5175 case ZFS_DELEG_EVERYONE: 5176 who = gettext("everyone"); 5177 who_name = NULL; 5178 break; 5179 5180 default: 5181 assert(who != NULL); 5182 } 5183 5184 prt_who = B_FALSE; 5185 if (who_name == NULL) 5186 (void) printf("\t%s", who); 5187 else 5188 (void) printf("\t%s %s", who, who_name); 5189 } 5190 5191 (void) printf("%c%s", delim, 5192 deleg_node->dpn_perm.dp_name); 5193 delim = ','; 5194 } 5195 5196 if (!prt_who) 5197 (void) printf("\n"); 5198 } 5199 5200 uu_avl_walk_end(walk); 5201 } 5202 5203 static void 5204 print_fs_perms(fs_perm_set_t *fspset) 5205 { 5206 fs_perm_node_t *node = NULL; 5207 char buf[ZFS_MAXNAMELEN+32]; 5208 const char *dsname = buf; 5209 5210 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5211 node = uu_list_next(fspset->fsps_list, node)) { 5212 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5213 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5214 int left = 0; 5215 5216 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5217 gettext("---- Permissions on %s "), 5218 node->fspn_fsperm.fsp_name); 5219 (void) printf(dsname); 5220 left = 70 - strlen(buf); 5221 while (left-- > 0) 5222 (void) printf("-"); 5223 (void) printf("\n"); 5224 5225 print_set_creat_perms(sc_avl); 5226 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5227 gettext("Local permissions:\n")); 5228 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5229 gettext("Descendent permissions:\n")); 5230 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5231 gettext("Local+Descendent permissions:\n")); 5232 } 5233 } 5234 5235 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5236 5237 struct deleg_perms { 5238 boolean_t un; 5239 nvlist_t *nvl; 5240 }; 5241 5242 static int 5243 set_deleg_perms(zfs_handle_t *zhp, void *data) 5244 { 5245 struct deleg_perms *perms = (struct deleg_perms *)data; 5246 zfs_type_t zfs_type = zfs_get_type(zhp); 5247 5248 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5249 return (0); 5250 5251 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5252 } 5253 5254 static int 5255 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5256 { 5257 zfs_handle_t *zhp; 5258 nvlist_t *perm_nvl = NULL; 5259 nvlist_t *update_perm_nvl = NULL; 5260 int error = 1; 5261 int c; 5262 struct allow_opts opts = { 0 }; 5263 5264 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5265 5266 /* check opts */ 5267 while ((c = getopt(argc, argv, optstr)) != -1) { 5268 switch (c) { 5269 case 'l': 5270 opts.local = B_TRUE; 5271 break; 5272 case 'd': 5273 opts.descend = B_TRUE; 5274 break; 5275 case 'u': 5276 opts.user = B_TRUE; 5277 break; 5278 case 'g': 5279 opts.group = B_TRUE; 5280 break; 5281 case 'e': 5282 opts.everyone = B_TRUE; 5283 break; 5284 case 's': 5285 opts.set = B_TRUE; 5286 break; 5287 case 'c': 5288 opts.create = B_TRUE; 5289 break; 5290 case 'r': 5291 opts.recursive = B_TRUE; 5292 break; 5293 case ':': 5294 (void) fprintf(stderr, gettext("missing argument for " 5295 "'%c' option\n"), optopt); 5296 usage(B_FALSE); 5297 break; 5298 case 'h': 5299 opts.prt_usage = B_TRUE; 5300 break; 5301 case '?': 5302 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5303 optopt); 5304 usage(B_FALSE); 5305 } 5306 } 5307 5308 argc -= optind; 5309 argv += optind; 5310 5311 /* check arguments */ 5312 parse_allow_args(argc, argv, un, &opts); 5313 5314 /* try to open the dataset */ 5315 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5316 ZFS_TYPE_VOLUME)) == NULL) { 5317 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5318 opts.dataset); 5319 return (-1); 5320 } 5321 5322 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5323 goto cleanup2; 5324 5325 fs_perm_set_init(&fs_perm_set); 5326 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5327 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5328 goto cleanup1; 5329 } 5330 5331 if (opts.prt_perms) 5332 print_fs_perms(&fs_perm_set); 5333 else { 5334 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5335 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5336 goto cleanup0; 5337 5338 if (un && opts.recursive) { 5339 struct deleg_perms data = { un, update_perm_nvl }; 5340 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5341 &data) != 0) 5342 goto cleanup0; 5343 } 5344 } 5345 5346 error = 0; 5347 5348 cleanup0: 5349 nvlist_free(perm_nvl); 5350 if (update_perm_nvl != NULL) 5351 nvlist_free(update_perm_nvl); 5352 cleanup1: 5353 fs_perm_set_fini(&fs_perm_set); 5354 cleanup2: 5355 zfs_close(zhp); 5356 5357 return (error); 5358 } 5359 5360 static int 5361 zfs_do_allow(int argc, char **argv) 5362 { 5363 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5364 } 5365 5366 static int 5367 zfs_do_unallow(int argc, char **argv) 5368 { 5369 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5370 } 5371 5372 static int 5373 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5374 { 5375 int errors = 0; 5376 int i; 5377 const char *tag; 5378 boolean_t recursive = B_FALSE; 5379 const char *opts = holding ? "rt" : "r"; 5380 int c; 5381 5382 /* check options */ 5383 while ((c = getopt(argc, argv, opts)) != -1) { 5384 switch (c) { 5385 case 'r': 5386 recursive = B_TRUE; 5387 break; 5388 case '?': 5389 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5390 optopt); 5391 usage(B_FALSE); 5392 } 5393 } 5394 5395 argc -= optind; 5396 argv += optind; 5397 5398 /* check number of arguments */ 5399 if (argc < 2) 5400 usage(B_FALSE); 5401 5402 tag = argv[0]; 5403 --argc; 5404 ++argv; 5405 5406 if (holding && tag[0] == '.') { 5407 /* tags starting with '.' are reserved for libzfs */ 5408 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5409 usage(B_FALSE); 5410 } 5411 5412 for (i = 0; i < argc; ++i) { 5413 zfs_handle_t *zhp; 5414 char parent[ZFS_MAXNAMELEN]; 5415 const char *delim; 5416 char *path = argv[i]; 5417 5418 delim = strchr(path, '@'); 5419 if (delim == NULL) { 5420 (void) fprintf(stderr, 5421 gettext("'%s' is not a snapshot\n"), path); 5422 ++errors; 5423 continue; 5424 } 5425 (void) strncpy(parent, path, delim - path); 5426 parent[delim - path] = '\0'; 5427 5428 zhp = zfs_open(g_zfs, parent, 5429 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5430 if (zhp == NULL) { 5431 ++errors; 5432 continue; 5433 } 5434 if (holding) { 5435 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5436 ++errors; 5437 } else { 5438 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5439 ++errors; 5440 } 5441 zfs_close(zhp); 5442 } 5443 5444 return (errors != 0); 5445 } 5446 5447 /* 5448 * zfs hold [-r] [-t] <tag> <snap> ... 5449 * 5450 * -r Recursively hold 5451 * 5452 * Apply a user-hold with the given tag to the list of snapshots. 5453 */ 5454 static int 5455 zfs_do_hold(int argc, char **argv) 5456 { 5457 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5458 } 5459 5460 /* 5461 * zfs release [-r] <tag> <snap> ... 5462 * 5463 * -r Recursively release 5464 * 5465 * Release a user-hold with the given tag from the list of snapshots. 5466 */ 5467 static int 5468 zfs_do_release(int argc, char **argv) 5469 { 5470 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5471 } 5472 5473 typedef struct holds_cbdata { 5474 boolean_t cb_recursive; 5475 const char *cb_snapname; 5476 nvlist_t **cb_nvlp; 5477 size_t cb_max_namelen; 5478 size_t cb_max_taglen; 5479 } holds_cbdata_t; 5480 5481 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5482 #define DATETIME_BUF_LEN (32) 5483 /* 5484 * 5485 */ 5486 static void 5487 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5488 { 5489 int i; 5490 nvpair_t *nvp = NULL; 5491 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5492 const char *col; 5493 5494 if (!scripted) { 5495 for (i = 0; i < 3; i++) { 5496 col = gettext(hdr_cols[i]); 5497 if (i < 2) 5498 (void) printf("%-*s ", i ? tagwidth : nwidth, 5499 col); 5500 else 5501 (void) printf("%s\n", col); 5502 } 5503 } 5504 5505 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5506 char *zname = nvpair_name(nvp); 5507 nvlist_t *nvl2; 5508 nvpair_t *nvp2 = NULL; 5509 (void) nvpair_value_nvlist(nvp, &nvl2); 5510 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5511 char tsbuf[DATETIME_BUF_LEN]; 5512 char *tagname = nvpair_name(nvp2); 5513 uint64_t val = 0; 5514 time_t time; 5515 struct tm t; 5516 char sep = scripted ? '\t' : ' '; 5517 size_t sepnum = scripted ? 1 : 2; 5518 5519 (void) nvpair_value_uint64(nvp2, &val); 5520 time = (time_t)val; 5521 (void) localtime_r(&time, &t); 5522 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5523 gettext(STRFTIME_FMT_STR), &t); 5524 5525 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5526 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5527 } 5528 } 5529 } 5530 5531 /* 5532 * Generic callback function to list a dataset or snapshot. 5533 */ 5534 static int 5535 holds_callback(zfs_handle_t *zhp, void *data) 5536 { 5537 holds_cbdata_t *cbp = data; 5538 nvlist_t *top_nvl = *cbp->cb_nvlp; 5539 nvlist_t *nvl = NULL; 5540 nvpair_t *nvp = NULL; 5541 const char *zname = zfs_get_name(zhp); 5542 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5543 5544 if (cbp->cb_recursive) { 5545 const char *snapname; 5546 char *delim = strchr(zname, '@'); 5547 if (delim == NULL) 5548 return (0); 5549 5550 snapname = delim + 1; 5551 if (strcmp(cbp->cb_snapname, snapname)) 5552 return (0); 5553 } 5554 5555 if (zfs_get_holds(zhp, &nvl) != 0) 5556 return (-1); 5557 5558 if (znamelen > cbp->cb_max_namelen) 5559 cbp->cb_max_namelen = znamelen; 5560 5561 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5562 const char *tag = nvpair_name(nvp); 5563 size_t taglen = strnlen(tag, MAXNAMELEN); 5564 if (taglen > cbp->cb_max_taglen) 5565 cbp->cb_max_taglen = taglen; 5566 } 5567 5568 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5569 } 5570 5571 /* 5572 * zfs holds [-r] <snap> ... 5573 * 5574 * -r Recursively hold 5575 */ 5576 static int 5577 zfs_do_holds(int argc, char **argv) 5578 { 5579 int errors = 0; 5580 int c; 5581 int i; 5582 boolean_t scripted = B_FALSE; 5583 boolean_t recursive = B_FALSE; 5584 const char *opts = "rH"; 5585 nvlist_t *nvl; 5586 5587 int types = ZFS_TYPE_SNAPSHOT; 5588 holds_cbdata_t cb = { 0 }; 5589 5590 int limit = 0; 5591 int ret = 0; 5592 int flags = 0; 5593 5594 /* check options */ 5595 while ((c = getopt(argc, argv, opts)) != -1) { 5596 switch (c) { 5597 case 'r': 5598 recursive = B_TRUE; 5599 break; 5600 case 'H': 5601 scripted = B_TRUE; 5602 break; 5603 case '?': 5604 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5605 optopt); 5606 usage(B_FALSE); 5607 } 5608 } 5609 5610 if (recursive) { 5611 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5612 flags |= ZFS_ITER_RECURSE; 5613 } 5614 5615 argc -= optind; 5616 argv += optind; 5617 5618 /* check number of arguments */ 5619 if (argc < 1) 5620 usage(B_FALSE); 5621 5622 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5623 nomem(); 5624 5625 for (i = 0; i < argc; ++i) { 5626 char *snapshot = argv[i]; 5627 const char *delim; 5628 const char *snapname; 5629 5630 delim = strchr(snapshot, '@'); 5631 if (delim == NULL) { 5632 (void) fprintf(stderr, 5633 gettext("'%s' is not a snapshot\n"), snapshot); 5634 ++errors; 5635 continue; 5636 } 5637 snapname = delim + 1; 5638 if (recursive) 5639 snapshot[delim - snapshot] = '\0'; 5640 5641 cb.cb_recursive = recursive; 5642 cb.cb_snapname = snapname; 5643 cb.cb_nvlp = &nvl; 5644 5645 /* 5646 * 1. collect holds data, set format options 5647 */ 5648 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5649 holds_callback, &cb); 5650 if (ret != 0) 5651 ++errors; 5652 } 5653 5654 /* 5655 * 2. print holds data 5656 */ 5657 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5658 5659 if (nvlist_empty(nvl)) 5660 (void) printf(gettext("no datasets available\n")); 5661 5662 nvlist_free(nvl); 5663 5664 return (0 != errors); 5665 } 5666 5667 #define CHECK_SPINNER 30 5668 #define SPINNER_TIME 3 /* seconds */ 5669 #define MOUNT_TIME 5 /* seconds */ 5670 5671 static int 5672 get_one_dataset(zfs_handle_t *zhp, void *data) 5673 { 5674 static char *spin[] = { "-", "\\", "|", "/" }; 5675 static int spinval = 0; 5676 static int spincheck = 0; 5677 static time_t last_spin_time = (time_t)0; 5678 get_all_cb_t *cbp = data; 5679 zfs_type_t type = zfs_get_type(zhp); 5680 5681 if (cbp->cb_verbose) { 5682 if (--spincheck < 0) { 5683 time_t now = time(NULL); 5684 if (last_spin_time + SPINNER_TIME < now) { 5685 update_progress(spin[spinval++ % 4]); 5686 last_spin_time = now; 5687 } 5688 spincheck = CHECK_SPINNER; 5689 } 5690 } 5691 5692 /* 5693 * Interate over any nested datasets. 5694 */ 5695 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5696 zfs_close(zhp); 5697 return (1); 5698 } 5699 5700 /* 5701 * Skip any datasets whose type does not match. 5702 */ 5703 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5704 zfs_close(zhp); 5705 return (0); 5706 } 5707 libzfs_add_handle(cbp, zhp); 5708 assert(cbp->cb_used <= cbp->cb_alloc); 5709 5710 return (0); 5711 } 5712 5713 static void 5714 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5715 { 5716 get_all_cb_t cb = { 0 }; 5717 cb.cb_verbose = verbose; 5718 cb.cb_getone = get_one_dataset; 5719 5720 if (verbose) 5721 set_progress_header(gettext("Reading ZFS config")); 5722 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5723 5724 *dslist = cb.cb_handles; 5725 *count = cb.cb_used; 5726 5727 if (verbose) 5728 finish_progress(gettext("done.")); 5729 } 5730 5731 /* 5732 * Generic callback for sharing or mounting filesystems. Because the code is so 5733 * similar, we have a common function with an extra parameter to determine which 5734 * mode we are using. 5735 */ 5736 #define OP_SHARE 0x1 5737 #define OP_MOUNT 0x2 5738 5739 /* 5740 * Share or mount a dataset. 5741 */ 5742 static int 5743 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5744 boolean_t explicit, const char *options) 5745 { 5746 char mountpoint[ZFS_MAXPROPLEN]; 5747 char shareopts[ZFS_MAXPROPLEN]; 5748 char smbshareopts[ZFS_MAXPROPLEN]; 5749 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5750 struct mnttab mnt; 5751 uint64_t zoned, canmount; 5752 boolean_t shared_nfs, shared_smb; 5753 5754 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5755 5756 /* 5757 * Check to make sure we can mount/share this dataset. If we 5758 * are in the global zone and the filesystem is exported to a 5759 * local zone, or if we are in a local zone and the 5760 * filesystem is not exported, then it is an error. 5761 */ 5762 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5763 5764 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5765 if (!explicit) 5766 return (0); 5767 5768 (void) fprintf(stderr, gettext("cannot %s '%s': " 5769 "dataset is exported to a local zone\n"), cmdname, 5770 zfs_get_name(zhp)); 5771 return (1); 5772 5773 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5774 if (!explicit) 5775 return (0); 5776 5777 (void) fprintf(stderr, gettext("cannot %s '%s': " 5778 "permission denied\n"), cmdname, 5779 zfs_get_name(zhp)); 5780 return (1); 5781 } 5782 5783 /* 5784 * Ignore any filesystems which don't apply to us. This 5785 * includes those with a legacy mountpoint, or those with 5786 * legacy share options. 5787 */ 5788 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5789 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5790 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5791 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5792 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5793 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5794 5795 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5796 strcmp(smbshareopts, "off") == 0) { 5797 if (!explicit) 5798 return (0); 5799 5800 (void) fprintf(stderr, gettext("cannot share '%s': " 5801 "legacy share\n"), zfs_get_name(zhp)); 5802 (void) fprintf(stderr, gettext("use share(1M) to " 5803 "share this filesystem, or set " 5804 "sharenfs property on\n")); 5805 return (1); 5806 } 5807 5808 /* 5809 * We cannot share or mount legacy filesystems. If the 5810 * shareopts is non-legacy but the mountpoint is legacy, we 5811 * treat it as a legacy share. 5812 */ 5813 if (strcmp(mountpoint, "legacy") == 0) { 5814 if (!explicit) 5815 return (0); 5816 5817 (void) fprintf(stderr, gettext("cannot %s '%s': " 5818 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5819 (void) fprintf(stderr, gettext("use %s(1M) to " 5820 "%s this filesystem\n"), cmdname, cmdname); 5821 return (1); 5822 } 5823 5824 if (strcmp(mountpoint, "none") == 0) { 5825 if (!explicit) 5826 return (0); 5827 5828 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5829 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5830 return (1); 5831 } 5832 5833 /* 5834 * canmount explicit outcome 5835 * on no pass through 5836 * on yes pass through 5837 * off no return 0 5838 * off yes display error, return 1 5839 * noauto no return 0 5840 * noauto yes pass through 5841 */ 5842 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5843 if (canmount == ZFS_CANMOUNT_OFF) { 5844 if (!explicit) 5845 return (0); 5846 5847 (void) fprintf(stderr, gettext("cannot %s '%s': " 5848 "'canmount' property is set to 'off'\n"), cmdname, 5849 zfs_get_name(zhp)); 5850 return (1); 5851 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5852 return (0); 5853 } 5854 5855 /* 5856 * If this filesystem is inconsistent and has a receive resume 5857 * token, we can not mount it. 5858 */ 5859 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5860 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5861 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5862 if (!explicit) 5863 return (0); 5864 5865 (void) fprintf(stderr, gettext("cannot %s '%s': " 5866 "Contains partially-completed state from " 5867 "\"zfs receive -r\", which can be resumed with " 5868 "\"zfs send -t\"\n"), 5869 cmdname, zfs_get_name(zhp)); 5870 return (1); 5871 } 5872 5873 /* 5874 * At this point, we have verified that the mountpoint and/or 5875 * shareopts are appropriate for auto management. If the 5876 * filesystem is already mounted or shared, return (failing 5877 * for explicit requests); otherwise mount or share the 5878 * filesystem. 5879 */ 5880 switch (op) { 5881 case OP_SHARE: 5882 5883 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5884 shared_smb = zfs_is_shared_smb(zhp, NULL); 5885 5886 if ((shared_nfs && shared_smb) || 5887 (shared_nfs && strcmp(shareopts, "on") == 0 && 5888 strcmp(smbshareopts, "off") == 0) || 5889 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5890 strcmp(shareopts, "off") == 0)) { 5891 if (!explicit) 5892 return (0); 5893 5894 (void) fprintf(stderr, gettext("cannot share " 5895 "'%s': filesystem already shared\n"), 5896 zfs_get_name(zhp)); 5897 return (1); 5898 } 5899 5900 if (!zfs_is_mounted(zhp, NULL) && 5901 zfs_mount(zhp, NULL, 0) != 0) 5902 return (1); 5903 5904 if (protocol == NULL) { 5905 if (zfs_shareall(zhp) != 0) 5906 return (1); 5907 } else if (strcmp(protocol, "nfs") == 0) { 5908 if (zfs_share_nfs(zhp)) 5909 return (1); 5910 } else if (strcmp(protocol, "smb") == 0) { 5911 if (zfs_share_smb(zhp)) 5912 return (1); 5913 } else { 5914 (void) fprintf(stderr, gettext("cannot share " 5915 "'%s': invalid share type '%s' " 5916 "specified\n"), 5917 zfs_get_name(zhp), protocol); 5918 return (1); 5919 } 5920 5921 break; 5922 5923 case OP_MOUNT: 5924 if (options == NULL) 5925 mnt.mnt_mntopts = ""; 5926 else 5927 mnt.mnt_mntopts = (char *)options; 5928 5929 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5930 zfs_is_mounted(zhp, NULL)) { 5931 if (!explicit) 5932 return (0); 5933 5934 (void) fprintf(stderr, gettext("cannot mount " 5935 "'%s': filesystem already mounted\n"), 5936 zfs_get_name(zhp)); 5937 return (1); 5938 } 5939 5940 if (zfs_mount(zhp, options, flags) != 0) 5941 return (1); 5942 break; 5943 } 5944 5945 return (0); 5946 } 5947 5948 /* 5949 * Reports progress in the form "(current/total)". Not thread-safe. 5950 */ 5951 static void 5952 report_mount_progress(int current, int total) 5953 { 5954 static time_t last_progress_time = 0; 5955 time_t now = time(NULL); 5956 char info[32]; 5957 5958 /* report 1..n instead of 0..n-1 */ 5959 ++current; 5960 5961 /* display header if we're here for the first time */ 5962 if (current == 1) { 5963 set_progress_header(gettext("Mounting ZFS filesystems")); 5964 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5965 /* too soon to report again */ 5966 return; 5967 } 5968 5969 last_progress_time = now; 5970 5971 (void) sprintf(info, "(%d/%d)", current, total); 5972 5973 if (current == total) 5974 finish_progress(info); 5975 else 5976 update_progress(info); 5977 } 5978 5979 static void 5980 append_options(char *mntopts, char *newopts) 5981 { 5982 int len = strlen(mntopts); 5983 5984 /* original length plus new string to append plus 1 for the comma */ 5985 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5986 (void) fprintf(stderr, gettext("the opts argument for " 5987 "'%c' option is too long (more than %d chars)\n"), 5988 "-o", MNT_LINE_MAX); 5989 usage(B_FALSE); 5990 } 5991 5992 if (*mntopts) 5993 mntopts[len++] = ','; 5994 5995 (void) strcpy(&mntopts[len], newopts); 5996 } 5997 5998 static int 5999 share_mount(int op, int argc, char **argv) 6000 { 6001 int do_all = 0; 6002 boolean_t verbose = B_FALSE; 6003 int c, ret = 0; 6004 char *options = NULL; 6005 int flags = 0; 6006 6007 /* check options */ 6008 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6009 != -1) { 6010 switch (c) { 6011 case 'a': 6012 do_all = 1; 6013 break; 6014 case 'v': 6015 verbose = B_TRUE; 6016 break; 6017 case 'o': 6018 if (*optarg == '\0') { 6019 (void) fprintf(stderr, gettext("empty mount " 6020 "options (-o) specified\n")); 6021 usage(B_FALSE); 6022 } 6023 6024 if (options == NULL) 6025 options = safe_malloc(MNT_LINE_MAX + 1); 6026 6027 /* option validation is done later */ 6028 append_options(options, optarg); 6029 break; 6030 6031 case 'O': 6032 flags |= MS_OVERLAY; 6033 break; 6034 case ':': 6035 (void) fprintf(stderr, gettext("missing argument for " 6036 "'%c' option\n"), optopt); 6037 usage(B_FALSE); 6038 break; 6039 case '?': 6040 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6041 optopt); 6042 usage(B_FALSE); 6043 } 6044 } 6045 6046 argc -= optind; 6047 argv += optind; 6048 6049 /* check number of arguments */ 6050 if (do_all) { 6051 zfs_handle_t **dslist = NULL; 6052 size_t i, count = 0; 6053 char *protocol = NULL; 6054 6055 if (op == OP_SHARE && argc > 0) { 6056 if (strcmp(argv[0], "nfs") != 0 && 6057 strcmp(argv[0], "smb") != 0) { 6058 (void) fprintf(stderr, gettext("share type " 6059 "must be 'nfs' or 'smb'\n")); 6060 usage(B_FALSE); 6061 } 6062 protocol = argv[0]; 6063 argc--; 6064 argv++; 6065 } 6066 6067 if (argc != 0) { 6068 (void) fprintf(stderr, gettext("too many arguments\n")); 6069 usage(B_FALSE); 6070 } 6071 6072 start_progress_timer(); 6073 get_all_datasets(&dslist, &count, verbose); 6074 6075 if (count == 0) 6076 return (0); 6077 6078 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6079 6080 for (i = 0; i < count; i++) { 6081 if (verbose) 6082 report_mount_progress(i, count); 6083 6084 if (share_mount_one(dslist[i], op, flags, protocol, 6085 B_FALSE, options) != 0) 6086 ret = 1; 6087 zfs_close(dslist[i]); 6088 } 6089 6090 free(dslist); 6091 } else if (argc == 0) { 6092 struct mnttab entry; 6093 6094 if ((op == OP_SHARE) || (options != NULL)) { 6095 (void) fprintf(stderr, gettext("missing filesystem " 6096 "argument (specify -a for all)\n")); 6097 usage(B_FALSE); 6098 } 6099 6100 /* 6101 * When mount is given no arguments, go through /etc/mnttab and 6102 * display any active ZFS mounts. We hide any snapshots, since 6103 * they are controlled automatically. 6104 */ 6105 rewind(mnttab_file); 6106 while (getmntent(mnttab_file, &entry) == 0) { 6107 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6108 strchr(entry.mnt_special, '@') != NULL) 6109 continue; 6110 6111 (void) printf("%-30s %s\n", entry.mnt_special, 6112 entry.mnt_mountp); 6113 } 6114 6115 } else { 6116 zfs_handle_t *zhp; 6117 6118 if (argc > 1) { 6119 (void) fprintf(stderr, 6120 gettext("too many arguments\n")); 6121 usage(B_FALSE); 6122 } 6123 6124 if ((zhp = zfs_open(g_zfs, argv[0], 6125 ZFS_TYPE_FILESYSTEM)) == NULL) { 6126 ret = 1; 6127 } else { 6128 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6129 options); 6130 zfs_close(zhp); 6131 } 6132 } 6133 6134 return (ret); 6135 } 6136 6137 /* 6138 * zfs mount -a [nfs] 6139 * zfs mount filesystem 6140 * 6141 * Mount all filesystems, or mount the given filesystem. 6142 */ 6143 static int 6144 zfs_do_mount(int argc, char **argv) 6145 { 6146 return (share_mount(OP_MOUNT, argc, argv)); 6147 } 6148 6149 /* 6150 * zfs share -a [nfs | smb] 6151 * zfs share filesystem 6152 * 6153 * Share all filesystems, or share the given filesystem. 6154 */ 6155 static int 6156 zfs_do_share(int argc, char **argv) 6157 { 6158 return (share_mount(OP_SHARE, argc, argv)); 6159 } 6160 6161 typedef struct unshare_unmount_node { 6162 zfs_handle_t *un_zhp; 6163 char *un_mountp; 6164 uu_avl_node_t un_avlnode; 6165 } unshare_unmount_node_t; 6166 6167 /* ARGSUSED */ 6168 static int 6169 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6170 { 6171 const unshare_unmount_node_t *l = larg; 6172 const unshare_unmount_node_t *r = rarg; 6173 6174 return (strcmp(l->un_mountp, r->un_mountp)); 6175 } 6176 6177 /* 6178 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6179 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6180 * and unmount it appropriately. 6181 */ 6182 static int 6183 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6184 { 6185 zfs_handle_t *zhp; 6186 int ret = 0; 6187 struct stat64 statbuf; 6188 struct extmnttab entry; 6189 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6190 ino_t path_inode; 6191 6192 /* 6193 * Search for the path in /etc/mnttab. Rather than looking for the 6194 * specific path, which can be fooled by non-standard paths (i.e. ".." 6195 * or "//"), we stat() the path and search for the corresponding 6196 * (major,minor) device pair. 6197 */ 6198 if (stat64(path, &statbuf) != 0) { 6199 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6200 cmdname, path, strerror(errno)); 6201 return (1); 6202 } 6203 path_inode = statbuf.st_ino; 6204 6205 /* 6206 * Search for the given (major,minor) pair in the mount table. 6207 */ 6208 rewind(mnttab_file); 6209 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6210 if (entry.mnt_major == major(statbuf.st_dev) && 6211 entry.mnt_minor == minor(statbuf.st_dev)) 6212 break; 6213 } 6214 if (ret != 0) { 6215 if (op == OP_SHARE) { 6216 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6217 "currently mounted\n"), cmdname, path); 6218 return (1); 6219 } 6220 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6221 path); 6222 if ((ret = umount2(path, flags)) != 0) 6223 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6224 strerror(errno)); 6225 return (ret != 0); 6226 } 6227 6228 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6229 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6230 "filesystem\n"), cmdname, path); 6231 return (1); 6232 } 6233 6234 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6235 ZFS_TYPE_FILESYSTEM)) == NULL) 6236 return (1); 6237 6238 ret = 1; 6239 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6240 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6241 cmdname, path, strerror(errno)); 6242 goto out; 6243 } else if (statbuf.st_ino != path_inode) { 6244 (void) fprintf(stderr, gettext("cannot " 6245 "%s '%s': not a mountpoint\n"), cmdname, path); 6246 goto out; 6247 } 6248 6249 if (op == OP_SHARE) { 6250 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6251 char smbshare_prop[ZFS_MAXPROPLEN]; 6252 6253 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6254 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6255 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6256 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6257 6258 if (strcmp(nfs_mnt_prop, "off") == 0 && 6259 strcmp(smbshare_prop, "off") == 0) { 6260 (void) fprintf(stderr, gettext("cannot unshare " 6261 "'%s': legacy share\n"), path); 6262 (void) fprintf(stderr, gettext("use " 6263 "unshare(1M) to unshare this filesystem\n")); 6264 } else if (!zfs_is_shared(zhp)) { 6265 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6266 "not currently shared\n"), path); 6267 } else { 6268 ret = zfs_unshareall_bypath(zhp, path); 6269 } 6270 } else { 6271 char mtpt_prop[ZFS_MAXPROPLEN]; 6272 6273 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6274 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6275 6276 if (is_manual) { 6277 ret = zfs_unmount(zhp, NULL, flags); 6278 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6279 (void) fprintf(stderr, gettext("cannot unmount " 6280 "'%s': legacy mountpoint\n"), 6281 zfs_get_name(zhp)); 6282 (void) fprintf(stderr, gettext("use umount(1M) " 6283 "to unmount this filesystem\n")); 6284 } else { 6285 ret = zfs_unmountall(zhp, flags); 6286 } 6287 } 6288 6289 out: 6290 zfs_close(zhp); 6291 6292 return (ret != 0); 6293 } 6294 6295 /* 6296 * Generic callback for unsharing or unmounting a filesystem. 6297 */ 6298 static int 6299 unshare_unmount(int op, int argc, char **argv) 6300 { 6301 int do_all = 0; 6302 int flags = 0; 6303 int ret = 0; 6304 int c; 6305 zfs_handle_t *zhp; 6306 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6307 char sharesmb[ZFS_MAXPROPLEN]; 6308 6309 /* check options */ 6310 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6311 switch (c) { 6312 case 'a': 6313 do_all = 1; 6314 break; 6315 case 'f': 6316 flags = MS_FORCE; 6317 break; 6318 case '?': 6319 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6320 optopt); 6321 usage(B_FALSE); 6322 } 6323 } 6324 6325 argc -= optind; 6326 argv += optind; 6327 6328 if (do_all) { 6329 /* 6330 * We could make use of zfs_for_each() to walk all datasets in 6331 * the system, but this would be very inefficient, especially 6332 * since we would have to linearly search /etc/mnttab for each 6333 * one. Instead, do one pass through /etc/mnttab looking for 6334 * zfs entries and call zfs_unmount() for each one. 6335 * 6336 * Things get a little tricky if the administrator has created 6337 * mountpoints beneath other ZFS filesystems. In this case, we 6338 * have to unmount the deepest filesystems first. To accomplish 6339 * this, we place all the mountpoints in an AVL tree sorted by 6340 * the special type (dataset name), and walk the result in 6341 * reverse to make sure to get any snapshots first. 6342 */ 6343 struct mnttab entry; 6344 uu_avl_pool_t *pool; 6345 uu_avl_t *tree = NULL; 6346 unshare_unmount_node_t *node; 6347 uu_avl_index_t idx; 6348 uu_avl_walk_t *walk; 6349 6350 if (argc != 0) { 6351 (void) fprintf(stderr, gettext("too many arguments\n")); 6352 usage(B_FALSE); 6353 } 6354 6355 if (((pool = uu_avl_pool_create("unmount_pool", 6356 sizeof (unshare_unmount_node_t), 6357 offsetof(unshare_unmount_node_t, un_avlnode), 6358 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6359 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6360 nomem(); 6361 6362 rewind(mnttab_file); 6363 while (getmntent(mnttab_file, &entry) == 0) { 6364 6365 /* ignore non-ZFS entries */ 6366 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6367 continue; 6368 6369 /* ignore snapshots */ 6370 if (strchr(entry.mnt_special, '@') != NULL) 6371 continue; 6372 6373 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6374 ZFS_TYPE_FILESYSTEM)) == NULL) { 6375 ret = 1; 6376 continue; 6377 } 6378 6379 /* 6380 * Ignore datasets that are excluded/restricted by 6381 * parent pool name. 6382 */ 6383 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6384 zfs_close(zhp); 6385 continue; 6386 } 6387 6388 switch (op) { 6389 case OP_SHARE: 6390 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6391 nfs_mnt_prop, 6392 sizeof (nfs_mnt_prop), 6393 NULL, NULL, 0, B_FALSE) == 0); 6394 if (strcmp(nfs_mnt_prop, "off") != 0) 6395 break; 6396 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6397 nfs_mnt_prop, 6398 sizeof (nfs_mnt_prop), 6399 NULL, NULL, 0, B_FALSE) == 0); 6400 if (strcmp(nfs_mnt_prop, "off") == 0) 6401 continue; 6402 break; 6403 case OP_MOUNT: 6404 /* Ignore legacy mounts */ 6405 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6406 nfs_mnt_prop, 6407 sizeof (nfs_mnt_prop), 6408 NULL, NULL, 0, B_FALSE) == 0); 6409 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6410 continue; 6411 /* Ignore canmount=noauto mounts */ 6412 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6413 ZFS_CANMOUNT_NOAUTO) 6414 continue; 6415 default: 6416 break; 6417 } 6418 6419 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6420 node->un_zhp = zhp; 6421 node->un_mountp = safe_strdup(entry.mnt_mountp); 6422 6423 uu_avl_node_init(node, &node->un_avlnode, pool); 6424 6425 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6426 uu_avl_insert(tree, node, idx); 6427 } else { 6428 zfs_close(node->un_zhp); 6429 free(node->un_mountp); 6430 free(node); 6431 } 6432 } 6433 6434 /* 6435 * Walk the AVL tree in reverse, unmounting each filesystem and 6436 * removing it from the AVL tree in the process. 6437 */ 6438 if ((walk = uu_avl_walk_start(tree, 6439 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6440 nomem(); 6441 6442 while ((node = uu_avl_walk_next(walk)) != NULL) { 6443 uu_avl_remove(tree, node); 6444 6445 switch (op) { 6446 case OP_SHARE: 6447 if (zfs_unshareall_bypath(node->un_zhp, 6448 node->un_mountp) != 0) 6449 ret = 1; 6450 break; 6451 6452 case OP_MOUNT: 6453 if (zfs_unmount(node->un_zhp, 6454 node->un_mountp, flags) != 0) 6455 ret = 1; 6456 break; 6457 } 6458 6459 zfs_close(node->un_zhp); 6460 free(node->un_mountp); 6461 free(node); 6462 } 6463 6464 uu_avl_walk_end(walk); 6465 uu_avl_destroy(tree); 6466 uu_avl_pool_destroy(pool); 6467 6468 } else { 6469 if (argc != 1) { 6470 if (argc == 0) 6471 (void) fprintf(stderr, 6472 gettext("missing filesystem argument\n")); 6473 else 6474 (void) fprintf(stderr, 6475 gettext("too many arguments\n")); 6476 usage(B_FALSE); 6477 } 6478 6479 /* 6480 * We have an argument, but it may be a full path or a ZFS 6481 * filesystem. Pass full paths off to unmount_path() (shared by 6482 * manual_unmount), otherwise open the filesystem and pass to 6483 * zfs_unmount(). 6484 */ 6485 if (argv[0][0] == '/') 6486 return (unshare_unmount_path(op, argv[0], 6487 flags, B_FALSE)); 6488 6489 if ((zhp = zfs_open(g_zfs, argv[0], 6490 ZFS_TYPE_FILESYSTEM)) == NULL) 6491 return (1); 6492 6493 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6494 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6495 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6496 NULL, 0, B_FALSE) == 0); 6497 6498 switch (op) { 6499 case OP_SHARE: 6500 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6501 nfs_mnt_prop, 6502 sizeof (nfs_mnt_prop), 6503 NULL, NULL, 0, B_FALSE) == 0); 6504 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6505 sharesmb, sizeof (sharesmb), NULL, NULL, 6506 0, B_FALSE) == 0); 6507 6508 if (strcmp(nfs_mnt_prop, "off") == 0 && 6509 strcmp(sharesmb, "off") == 0) { 6510 (void) fprintf(stderr, gettext("cannot " 6511 "unshare '%s': legacy share\n"), 6512 zfs_get_name(zhp)); 6513 (void) fprintf(stderr, gettext("use " 6514 "unshare(1M) to unshare this " 6515 "filesystem\n")); 6516 ret = 1; 6517 } else if (!zfs_is_shared(zhp)) { 6518 (void) fprintf(stderr, gettext("cannot " 6519 "unshare '%s': not currently " 6520 "shared\n"), zfs_get_name(zhp)); 6521 ret = 1; 6522 } else if (zfs_unshareall(zhp) != 0) { 6523 ret = 1; 6524 } 6525 break; 6526 6527 case OP_MOUNT: 6528 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6529 (void) fprintf(stderr, gettext("cannot " 6530 "unmount '%s': legacy " 6531 "mountpoint\n"), zfs_get_name(zhp)); 6532 (void) fprintf(stderr, gettext("use " 6533 "umount(1M) to unmount this " 6534 "filesystem\n")); 6535 ret = 1; 6536 } else if (!zfs_is_mounted(zhp, NULL)) { 6537 (void) fprintf(stderr, gettext("cannot " 6538 "unmount '%s': not currently " 6539 "mounted\n"), 6540 zfs_get_name(zhp)); 6541 ret = 1; 6542 } else if (zfs_unmountall(zhp, flags) != 0) { 6543 ret = 1; 6544 } 6545 break; 6546 } 6547 6548 zfs_close(zhp); 6549 } 6550 6551 return (ret); 6552 } 6553 6554 /* 6555 * zfs unmount -a 6556 * zfs unmount filesystem 6557 * 6558 * Unmount all filesystems, or a specific ZFS filesystem. 6559 */ 6560 static int 6561 zfs_do_unmount(int argc, char **argv) 6562 { 6563 return (unshare_unmount(OP_MOUNT, argc, argv)); 6564 } 6565 6566 /* 6567 * zfs unshare -a 6568 * zfs unshare filesystem 6569 * 6570 * Unshare all filesystems, or a specific ZFS filesystem. 6571 */ 6572 static int 6573 zfs_do_unshare(int argc, char **argv) 6574 { 6575 return (unshare_unmount(OP_SHARE, argc, argv)); 6576 } 6577 6578 /* 6579 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6580 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6581 */ 6582 static int 6583 manual_mount(int argc, char **argv) 6584 { 6585 zfs_handle_t *zhp; 6586 char mountpoint[ZFS_MAXPROPLEN]; 6587 char mntopts[MNT_LINE_MAX] = { '\0' }; 6588 int ret = 0; 6589 int c; 6590 int flags = 0; 6591 char *dataset, *path; 6592 6593 /* check options */ 6594 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6595 switch (c) { 6596 case 'o': 6597 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6598 break; 6599 case 'O': 6600 flags |= MS_OVERLAY; 6601 break; 6602 case 'm': 6603 flags |= MS_NOMNTTAB; 6604 break; 6605 case ':': 6606 (void) fprintf(stderr, gettext("missing argument for " 6607 "'%c' option\n"), optopt); 6608 usage(B_FALSE); 6609 break; 6610 case '?': 6611 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6612 optopt); 6613 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6614 "<path>\n")); 6615 return (2); 6616 } 6617 } 6618 6619 argc -= optind; 6620 argv += optind; 6621 6622 /* check that we only have two arguments */ 6623 if (argc != 2) { 6624 if (argc == 0) 6625 (void) fprintf(stderr, gettext("missing dataset " 6626 "argument\n")); 6627 else if (argc == 1) 6628 (void) fprintf(stderr, 6629 gettext("missing mountpoint argument\n")); 6630 else 6631 (void) fprintf(stderr, gettext("too many arguments\n")); 6632 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6633 return (2); 6634 } 6635 6636 dataset = argv[0]; 6637 path = argv[1]; 6638 6639 /* try to open the dataset */ 6640 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6641 return (1); 6642 6643 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6644 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6645 6646 /* check for legacy mountpoint and complain appropriately */ 6647 ret = 0; 6648 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6649 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6650 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6651 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6652 strerror(errno)); 6653 ret = 1; 6654 } 6655 } else { 6656 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6657 "mounted using 'mount -F zfs'\n"), dataset); 6658 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6659 "instead.\n"), path); 6660 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6661 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6662 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6663 "information.\n")); 6664 ret = 1; 6665 } 6666 6667 return (ret); 6668 } 6669 6670 /* 6671 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6672 * unmounts of non-legacy filesystems, as this is the dominant administrative 6673 * interface. 6674 */ 6675 static int 6676 manual_unmount(int argc, char **argv) 6677 { 6678 int flags = 0; 6679 int c; 6680 6681 /* check options */ 6682 while ((c = getopt(argc, argv, "f")) != -1) { 6683 switch (c) { 6684 case 'f': 6685 flags = MS_FORCE; 6686 break; 6687 case '?': 6688 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6689 optopt); 6690 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6691 "<path>\n")); 6692 return (2); 6693 } 6694 } 6695 6696 argc -= optind; 6697 argv += optind; 6698 6699 /* check arguments */ 6700 if (argc != 1) { 6701 if (argc == 0) 6702 (void) fprintf(stderr, gettext("missing path " 6703 "argument\n")); 6704 else 6705 (void) fprintf(stderr, gettext("too many arguments\n")); 6706 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6707 return (2); 6708 } 6709 6710 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6711 } 6712 6713 static int 6714 find_command_idx(char *command, int *idx) 6715 { 6716 int i; 6717 6718 for (i = 0; i < NCOMMAND; i++) { 6719 if (command_table[i].name == NULL) 6720 continue; 6721 6722 if (strcmp(command, command_table[i].name) == 0) { 6723 *idx = i; 6724 return (0); 6725 } 6726 } 6727 return (1); 6728 } 6729 6730 static int 6731 zfs_do_diff(int argc, char **argv) 6732 { 6733 zfs_handle_t *zhp; 6734 int flags = 0; 6735 char *tosnap = NULL; 6736 char *fromsnap = NULL; 6737 char *atp, *copy; 6738 int err = 0; 6739 int c; 6740 6741 while ((c = getopt(argc, argv, "FHt")) != -1) { 6742 switch (c) { 6743 case 'F': 6744 flags |= ZFS_DIFF_CLASSIFY; 6745 break; 6746 case 'H': 6747 flags |= ZFS_DIFF_PARSEABLE; 6748 break; 6749 case 't': 6750 flags |= ZFS_DIFF_TIMESTAMP; 6751 break; 6752 default: 6753 (void) fprintf(stderr, 6754 gettext("invalid option '%c'\n"), optopt); 6755 usage(B_FALSE); 6756 } 6757 } 6758 6759 argc -= optind; 6760 argv += optind; 6761 6762 if (argc < 1) { 6763 (void) fprintf(stderr, 6764 gettext("must provide at least one snapshot name\n")); 6765 usage(B_FALSE); 6766 } 6767 6768 if (argc > 2) { 6769 (void) fprintf(stderr, gettext("too many arguments\n")); 6770 usage(B_FALSE); 6771 } 6772 6773 fromsnap = argv[0]; 6774 tosnap = (argc == 2) ? argv[1] : NULL; 6775 6776 copy = NULL; 6777 if (*fromsnap != '@') 6778 copy = strdup(fromsnap); 6779 else if (tosnap) 6780 copy = strdup(tosnap); 6781 if (copy == NULL) 6782 usage(B_FALSE); 6783 6784 if ((atp = strchr(copy, '@')) != NULL) 6785 *atp = '\0'; 6786 6787 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6788 return (1); 6789 6790 free(copy); 6791 6792 /* 6793 * Ignore SIGPIPE so that the library can give us 6794 * information on any failure 6795 */ 6796 (void) sigignore(SIGPIPE); 6797 6798 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6799 6800 zfs_close(zhp); 6801 6802 return (err != 0); 6803 } 6804 6805 /* 6806 * zfs bookmark <fs@snap> <fs#bmark> 6807 * 6808 * Creates a bookmark with the given name from the given snapshot. 6809 */ 6810 static int 6811 zfs_do_bookmark(int argc, char **argv) 6812 { 6813 char snapname[ZFS_MAXNAMELEN]; 6814 zfs_handle_t *zhp; 6815 nvlist_t *nvl; 6816 int ret = 0; 6817 int c; 6818 6819 /* check options */ 6820 while ((c = getopt(argc, argv, "")) != -1) { 6821 switch (c) { 6822 case '?': 6823 (void) fprintf(stderr, 6824 gettext("invalid option '%c'\n"), optopt); 6825 goto usage; 6826 } 6827 } 6828 6829 argc -= optind; 6830 argv += optind; 6831 6832 /* check number of arguments */ 6833 if (argc < 1) { 6834 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6835 goto usage; 6836 } 6837 if (argc < 2) { 6838 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6839 goto usage; 6840 } 6841 6842 if (strchr(argv[1], '#') == NULL) { 6843 (void) fprintf(stderr, 6844 gettext("invalid bookmark name '%s' -- " 6845 "must contain a '#'\n"), argv[1]); 6846 goto usage; 6847 } 6848 6849 if (argv[0][0] == '@') { 6850 /* 6851 * Snapshot name begins with @. 6852 * Default to same fs as bookmark. 6853 */ 6854 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6855 *strchr(snapname, '#') = '\0'; 6856 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6857 } else { 6858 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6859 } 6860 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6861 if (zhp == NULL) 6862 goto usage; 6863 zfs_close(zhp); 6864 6865 6866 nvl = fnvlist_alloc(); 6867 fnvlist_add_string(nvl, argv[1], snapname); 6868 ret = lzc_bookmark(nvl, NULL); 6869 fnvlist_free(nvl); 6870 6871 if (ret != 0) { 6872 const char *err_msg; 6873 char errbuf[1024]; 6874 6875 (void) snprintf(errbuf, sizeof (errbuf), 6876 dgettext(TEXT_DOMAIN, 6877 "cannot create bookmark '%s'"), argv[1]); 6878 6879 switch (ret) { 6880 case EXDEV: 6881 err_msg = "bookmark is in a different pool"; 6882 break; 6883 case EEXIST: 6884 err_msg = "bookmark exists"; 6885 break; 6886 case EINVAL: 6887 err_msg = "invalid argument"; 6888 break; 6889 case ENOTSUP: 6890 err_msg = "bookmark feature not enabled"; 6891 break; 6892 case ENOSPC: 6893 err_msg = "out of space"; 6894 break; 6895 default: 6896 err_msg = "unknown error"; 6897 break; 6898 } 6899 (void) fprintf(stderr, "%s: %s\n", errbuf, 6900 dgettext(TEXT_DOMAIN, err_msg)); 6901 } 6902 6903 return (ret != 0); 6904 6905 usage: 6906 usage(B_FALSE); 6907 return (-1); 6908 } 6909 6910 int 6911 main(int argc, char **argv) 6912 { 6913 int ret = 0; 6914 int i; 6915 char *progname; 6916 char *cmdname; 6917 6918 (void) setlocale(LC_ALL, ""); 6919 (void) textdomain(TEXT_DOMAIN); 6920 6921 opterr = 0; 6922 6923 if ((g_zfs = libzfs_init()) == NULL) { 6924 (void) fprintf(stderr, gettext("internal error: failed to " 6925 "initialize ZFS library\n")); 6926 return (1); 6927 } 6928 6929 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6930 6931 libzfs_print_on_error(g_zfs, B_TRUE); 6932 6933 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6934 (void) fprintf(stderr, gettext("internal error: unable to " 6935 "open %s\n"), MNTTAB); 6936 return (1); 6937 } 6938 6939 /* 6940 * This command also doubles as the /etc/fs mount and unmount program. 6941 * Determine if we should take this behavior based on argv[0]. 6942 */ 6943 progname = basename(argv[0]); 6944 if (strcmp(progname, "mount") == 0) { 6945 ret = manual_mount(argc, argv); 6946 } else if (strcmp(progname, "umount") == 0) { 6947 ret = manual_unmount(argc, argv); 6948 } else { 6949 /* 6950 * Make sure the user has specified some command. 6951 */ 6952 if (argc < 2) { 6953 (void) fprintf(stderr, gettext("missing command\n")); 6954 usage(B_FALSE); 6955 } 6956 6957 cmdname = argv[1]; 6958 6959 /* 6960 * The 'umount' command is an alias for 'unmount' 6961 */ 6962 if (strcmp(cmdname, "umount") == 0) 6963 cmdname = "unmount"; 6964 6965 /* 6966 * The 'recv' command is an alias for 'receive' 6967 */ 6968 if (strcmp(cmdname, "recv") == 0) 6969 cmdname = "receive"; 6970 6971 /* 6972 * The 'snap' command is an alias for 'snapshot' 6973 */ 6974 if (strcmp(cmdname, "snap") == 0) 6975 cmdname = "snapshot"; 6976 6977 /* 6978 * Special case '-?' 6979 */ 6980 if (strcmp(cmdname, "-?") == 0) 6981 usage(B_TRUE); 6982 6983 /* 6984 * Run the appropriate command. 6985 */ 6986 libzfs_mnttab_cache(g_zfs, B_TRUE); 6987 if (find_command_idx(cmdname, &i) == 0) { 6988 current_command = &command_table[i]; 6989 ret = command_table[i].func(argc - 1, argv + 1); 6990 } else if (strchr(cmdname, '=') != NULL) { 6991 verify(find_command_idx("set", &i) == 0); 6992 current_command = &command_table[i]; 6993 ret = command_table[i].func(argc, argv); 6994 } else { 6995 (void) fprintf(stderr, gettext("unrecognized " 6996 "command '%s'\n"), cmdname); 6997 usage(B_FALSE); 6998 } 6999 libzfs_mnttab_cache(g_zfs, B_FALSE); 7000 } 7001 7002 (void) fclose(mnttab_file); 7003 7004 if (ret == 0 && log_history) 7005 (void) zpool_log_history(g_zfs, history_str); 7006 7007 libzfs_fini(g_zfs); 7008 7009 /* 7010 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7011 * for the purposes of running ::findleaks. 7012 */ 7013 if (getenv("ZFS_ABORT") != NULL) { 7014 (void) printf("dumping core by request\n"); 7015 abort(); 7016 } 7017 7018 return (ret); 7019 } 7020