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) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 28 * Copyright (c) 2013 Steven Hartland. All rights reserved. 29 * Copyright (c) 2014 Integros [integros.com] 30 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 31 * Copyright 2016 Nexenta Systems, Inc. 32 */ 33 34 #include <assert.h> 35 #include <ctype.h> 36 #include <errno.h> 37 #include <libgen.h> 38 #include <libintl.h> 39 #include <libuutil.h> 40 #include <libnvpair.h> 41 #include <locale.h> 42 #include <stddef.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <strings.h> 46 #include <unistd.h> 47 #include <fcntl.h> 48 #include <zone.h> 49 #include <grp.h> 50 #include <pwd.h> 51 #include <signal.h> 52 #include <sys/list.h> 53 #include <sys/mkdev.h> 54 #include <sys/mntent.h> 55 #include <sys/mnttab.h> 56 #include <sys/mount.h> 57 #include <sys/stat.h> 58 #include <sys/fs/zfs.h> 59 #include <sys/types.h> 60 #include <time.h> 61 62 #include <libzfs.h> 63 #include <libzfs_core.h> 64 #include <zfs_prop.h> 65 #include <zfs_deleg.h> 66 #include <libuutil.h> 67 #include <aclutils.h> 68 #include <directory.h> 69 #include <idmap.h> 70 71 #include "zfs_iter.h" 72 #include "zfs_util.h" 73 #include "zfs_comutil.h" 74 75 libzfs_handle_t *g_zfs; 76 77 static FILE *mnttab_file; 78 static char history_str[HIS_MAX_RECORD_LEN]; 79 static boolean_t log_history = B_TRUE; 80 81 static int zfs_do_clone(int argc, char **argv); 82 static int zfs_do_create(int argc, char **argv); 83 static int zfs_do_destroy(int argc, char **argv); 84 static int zfs_do_get(int argc, char **argv); 85 static int zfs_do_inherit(int argc, char **argv); 86 static int zfs_do_list(int argc, char **argv); 87 static int zfs_do_mount(int argc, char **argv); 88 static int zfs_do_rename(int argc, char **argv); 89 static int zfs_do_rollback(int argc, char **argv); 90 static int zfs_do_set(int argc, char **argv); 91 static int zfs_do_upgrade(int argc, char **argv); 92 static int zfs_do_snapshot(int argc, char **argv); 93 static int zfs_do_unmount(int argc, char **argv); 94 static int zfs_do_share(int argc, char **argv); 95 static int zfs_do_unshare(int argc, char **argv); 96 static int zfs_do_send(int argc, char **argv); 97 static int zfs_do_receive(int argc, char **argv); 98 static int zfs_do_promote(int argc, char **argv); 99 static int zfs_do_userspace(int argc, char **argv); 100 static int zfs_do_allow(int argc, char **argv); 101 static int zfs_do_unallow(int argc, char **argv); 102 static int zfs_do_hold(int argc, char **argv); 103 static int zfs_do_holds(int argc, char **argv); 104 static int zfs_do_release(int argc, char **argv); 105 static int zfs_do_diff(int argc, char **argv); 106 static int zfs_do_bookmark(int argc, char **argv); 107 108 /* 109 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 110 */ 111 112 #ifdef DEBUG 113 const char * 114 _umem_debug_init(void) 115 { 116 return ("default,verbose"); /* $UMEM_DEBUG setting */ 117 } 118 119 const char * 120 _umem_logging_init(void) 121 { 122 return ("fail,contents"); /* $UMEM_LOGGING setting */ 123 } 124 #endif 125 126 typedef enum { 127 HELP_CLONE, 128 HELP_CREATE, 129 HELP_DESTROY, 130 HELP_GET, 131 HELP_INHERIT, 132 HELP_UPGRADE, 133 HELP_LIST, 134 HELP_MOUNT, 135 HELP_PROMOTE, 136 HELP_RECEIVE, 137 HELP_RENAME, 138 HELP_ROLLBACK, 139 HELP_SEND, 140 HELP_SET, 141 HELP_SHARE, 142 HELP_SNAPSHOT, 143 HELP_UNMOUNT, 144 HELP_UNSHARE, 145 HELP_ALLOW, 146 HELP_UNALLOW, 147 HELP_USERSPACE, 148 HELP_GROUPSPACE, 149 HELP_HOLD, 150 HELP_HOLDS, 151 HELP_RELEASE, 152 HELP_DIFF, 153 HELP_BOOKMARK, 154 } zfs_help_t; 155 156 typedef struct zfs_command { 157 const char *name; 158 int (*func)(int argc, char **argv); 159 zfs_help_t usage; 160 } zfs_command_t; 161 162 /* 163 * Master command table. Each ZFS command has a name, associated function, and 164 * usage message. The usage messages need to be internationalized, so we have 165 * to have a function to return the usage message based on a command index. 166 * 167 * These commands are organized according to how they are displayed in the usage 168 * message. An empty command (one with a NULL name) indicates an empty line in 169 * the generic usage message. 170 */ 171 static zfs_command_t command_table[] = { 172 { "create", zfs_do_create, HELP_CREATE }, 173 { "destroy", zfs_do_destroy, HELP_DESTROY }, 174 { NULL }, 175 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 176 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 177 { "clone", zfs_do_clone, HELP_CLONE }, 178 { "promote", zfs_do_promote, HELP_PROMOTE }, 179 { "rename", zfs_do_rename, HELP_RENAME }, 180 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 181 { NULL }, 182 { "list", zfs_do_list, HELP_LIST }, 183 { NULL }, 184 { "set", zfs_do_set, HELP_SET }, 185 { "get", zfs_do_get, HELP_GET }, 186 { "inherit", zfs_do_inherit, HELP_INHERIT }, 187 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 188 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 189 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 190 { NULL }, 191 { "mount", zfs_do_mount, HELP_MOUNT }, 192 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 193 { "share", zfs_do_share, HELP_SHARE }, 194 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 195 { NULL }, 196 { "send", zfs_do_send, HELP_SEND }, 197 { "receive", zfs_do_receive, HELP_RECEIVE }, 198 { NULL }, 199 { "allow", zfs_do_allow, HELP_ALLOW }, 200 { NULL }, 201 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 202 { NULL }, 203 { "hold", zfs_do_hold, HELP_HOLD }, 204 { "holds", zfs_do_holds, HELP_HOLDS }, 205 { "release", zfs_do_release, HELP_RELEASE }, 206 { "diff", zfs_do_diff, HELP_DIFF }, 207 }; 208 209 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 210 211 zfs_command_t *current_command; 212 213 static const char * 214 get_usage(zfs_help_t idx) 215 { 216 switch (idx) { 217 case HELP_CLONE: 218 return (gettext("\tclone [-p] [-o property=value] ... " 219 "<snapshot> <filesystem|volume>\n")); 220 case HELP_CREATE: 221 return (gettext("\tcreate [-p] [-o property=value] ... " 222 "<filesystem>\n" 223 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 224 "-V <size> <volume>\n")); 225 case HELP_DESTROY: 226 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 227 "\tdestroy [-dnpRrv] " 228 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 229 "\tdestroy <filesystem|volume>#<bookmark>\n")); 230 case HELP_GET: 231 return (gettext("\tget [-rHp] [-d max] " 232 "[-o \"all\" | field[,...]]\n" 233 "\t [-t type[,...]] [-s source[,...]]\n" 234 "\t <\"all\" | property[,...]> " 235 "[filesystem|volume|snapshot|bookmark] ...\n")); 236 case HELP_INHERIT: 237 return (gettext("\tinherit [-rS] <property> " 238 "<filesystem|volume|snapshot> ...\n")); 239 case HELP_UPGRADE: 240 return (gettext("\tupgrade [-v]\n" 241 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 242 case HELP_LIST: 243 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 244 "[-s property]...\n\t [-S property]... [-t type[,...]] " 245 "[filesystem|volume|snapshot] ...\n")); 246 case HELP_MOUNT: 247 return (gettext("\tmount\n" 248 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 249 case HELP_PROMOTE: 250 return (gettext("\tpromote <clone-filesystem>\n")); 251 case HELP_RECEIVE: 252 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 253 "snapshot>\n" 254 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 255 "<filesystem>\n" 256 "\treceive -A <filesystem|volume>\n")); 257 case HELP_RENAME: 258 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 259 "<filesystem|volume|snapshot>\n" 260 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 261 "\trename -r <snapshot> <snapshot>\n")); 262 case HELP_ROLLBACK: 263 return (gettext("\trollback [-rRf] <snapshot>\n")); 264 case HELP_SEND: 265 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 266 "<snapshot>\n" 267 "\tsend [-Le] [-i snapshot|bookmark] " 268 "<filesystem|volume|snapshot>\n" 269 "\tsend [-nvPe] -t <receive_resume_token>\n")); 270 case HELP_SET: 271 return (gettext("\tset <property=value> ... " 272 "<filesystem|volume|snapshot> ...\n")); 273 case HELP_SHARE: 274 return (gettext("\tshare <-a | filesystem>\n")); 275 case HELP_SNAPSHOT: 276 return (gettext("\tsnapshot [-r] [-o property=value] ... " 277 "<filesystem|volume>@<snap> ...\n")); 278 case HELP_UNMOUNT: 279 return (gettext("\tunmount [-f] " 280 "<-a | filesystem|mountpoint>\n")); 281 case HELP_UNSHARE: 282 return (gettext("\tunshare " 283 "<-a | filesystem|mountpoint>\n")); 284 case HELP_ALLOW: 285 return (gettext("\tallow <filesystem|volume>\n" 286 "\tallow [-ldug] " 287 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 288 "\t <filesystem|volume>\n" 289 "\tallow [-ld] -e <perm|@setname>[,...] " 290 "<filesystem|volume>\n" 291 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 292 "\tallow -s @setname <perm|@setname>[,...] " 293 "<filesystem|volume>\n")); 294 case HELP_UNALLOW: 295 return (gettext("\tunallow [-rldug] " 296 "<\"everyone\"|user|group>[,...]\n" 297 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 298 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 299 "<filesystem|volume>\n" 300 "\tunallow [-r] -c [<perm|@setname>[,...]] " 301 "<filesystem|volume>\n" 302 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 303 "<filesystem|volume>\n")); 304 case HELP_USERSPACE: 305 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 306 "[-s field] ...\n" 307 "\t [-S field] ... [-t type[,...]] " 308 "<filesystem|snapshot>\n")); 309 case HELP_GROUPSPACE: 310 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 311 "[-s field] ...\n" 312 "\t [-S field] ... [-t type[,...]] " 313 "<filesystem|snapshot>\n")); 314 case HELP_HOLD: 315 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 316 case HELP_HOLDS: 317 return (gettext("\tholds [-r] <snapshot> ...\n")); 318 case HELP_RELEASE: 319 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 320 case HELP_DIFF: 321 return (gettext("\tdiff [-FHt] <snapshot> " 322 "[snapshot|filesystem]\n")); 323 case HELP_BOOKMARK: 324 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 325 } 326 327 abort(); 328 /* NOTREACHED */ 329 } 330 331 void 332 nomem(void) 333 { 334 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 335 exit(1); 336 } 337 338 /* 339 * Utility function to guarantee malloc() success. 340 */ 341 342 void * 343 safe_malloc(size_t size) 344 { 345 void *data; 346 347 if ((data = calloc(1, size)) == NULL) 348 nomem(); 349 350 return (data); 351 } 352 353 static char * 354 safe_strdup(char *str) 355 { 356 char *dupstr = strdup(str); 357 358 if (dupstr == NULL) 359 nomem(); 360 361 return (dupstr); 362 } 363 364 /* 365 * Callback routine that will print out information for each of 366 * the properties. 367 */ 368 static int 369 usage_prop_cb(int prop, void *cb) 370 { 371 FILE *fp = cb; 372 373 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 374 375 if (zfs_prop_readonly(prop)) 376 (void) fprintf(fp, " NO "); 377 else 378 (void) fprintf(fp, "YES "); 379 380 if (zfs_prop_inheritable(prop)) 381 (void) fprintf(fp, " YES "); 382 else 383 (void) fprintf(fp, " NO "); 384 385 if (zfs_prop_values(prop) == NULL) 386 (void) fprintf(fp, "-\n"); 387 else 388 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 389 390 return (ZPROP_CONT); 391 } 392 393 /* 394 * Display usage message. If we're inside a command, display only the usage for 395 * that command. Otherwise, iterate over the entire command table and display 396 * a complete usage message. 397 */ 398 static void 399 usage(boolean_t requested) 400 { 401 int i; 402 boolean_t show_properties = B_FALSE; 403 FILE *fp = requested ? stdout : stderr; 404 405 if (current_command == NULL) { 406 407 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 408 (void) fprintf(fp, 409 gettext("where 'command' is one of the following:\n\n")); 410 411 for (i = 0; i < NCOMMAND; i++) { 412 if (command_table[i].name == NULL) 413 (void) fprintf(fp, "\n"); 414 else 415 (void) fprintf(fp, "%s", 416 get_usage(command_table[i].usage)); 417 } 418 419 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 420 "pool/[dataset/]*dataset[@name]\n")); 421 } else { 422 (void) fprintf(fp, gettext("usage:\n")); 423 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 424 } 425 426 if (current_command != NULL && 427 (strcmp(current_command->name, "set") == 0 || 428 strcmp(current_command->name, "get") == 0 || 429 strcmp(current_command->name, "inherit") == 0 || 430 strcmp(current_command->name, "list") == 0)) 431 show_properties = B_TRUE; 432 433 if (show_properties) { 434 (void) fprintf(fp, 435 gettext("\nThe following properties are supported:\n")); 436 437 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 438 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 439 440 /* Iterate over all properties */ 441 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 442 ZFS_TYPE_DATASET); 443 444 (void) fprintf(fp, "\t%-15s ", "userused@..."); 445 (void) fprintf(fp, " NO NO <size>\n"); 446 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 447 (void) fprintf(fp, " NO NO <size>\n"); 448 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 449 (void) fprintf(fp, "YES NO <size> | none\n"); 450 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 451 (void) fprintf(fp, "YES NO <size> | none\n"); 452 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 453 (void) fprintf(fp, " NO NO <size>\n"); 454 455 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 456 "with standard units such as K, M, G, etc.\n")); 457 (void) fprintf(fp, gettext("\nUser-defined properties can " 458 "be specified by using a name containing a colon (:).\n")); 459 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 460 "properties must be appended with\n" 461 "a user or group specifier of one of these forms:\n" 462 " POSIX name (eg: \"matt\")\n" 463 " POSIX id (eg: \"126829\")\n" 464 " SMB name@domain (eg: \"matt@sun\")\n" 465 " SMB SID (eg: \"S-1-234-567-89\")\n")); 466 } else { 467 (void) fprintf(fp, 468 gettext("\nFor the property list, run: %s\n"), 469 "zfs set|get"); 470 (void) fprintf(fp, 471 gettext("\nFor the delegated permission list, run: %s\n"), 472 "zfs allow|unallow"); 473 } 474 475 /* 476 * See comments at end of main(). 477 */ 478 if (getenv("ZFS_ABORT") != NULL) { 479 (void) printf("dumping core by request\n"); 480 abort(); 481 } 482 483 exit(requested ? 0 : 2); 484 } 485 486 /* 487 * Take a property=value argument string and add it to the given nvlist. 488 * Modifies the argument inplace. 489 */ 490 static int 491 parseprop(nvlist_t *props, char *propname) 492 { 493 char *propval, *strval; 494 495 if ((propval = strchr(propname, '=')) == NULL) { 496 (void) fprintf(stderr, gettext("missing " 497 "'=' for property=value argument\n")); 498 return (-1); 499 } 500 *propval = '\0'; 501 propval++; 502 if (nvlist_lookup_string(props, propname, &strval) == 0) { 503 (void) fprintf(stderr, gettext("property '%s' " 504 "specified multiple times\n"), propname); 505 return (-1); 506 } 507 if (nvlist_add_string(props, propname, propval) != 0) 508 nomem(); 509 return (0); 510 } 511 512 static int 513 parse_depth(char *opt, int *flags) 514 { 515 char *tmp; 516 int depth; 517 518 depth = (int)strtol(opt, &tmp, 0); 519 if (*tmp) { 520 (void) fprintf(stderr, 521 gettext("%s is not an integer\n"), optarg); 522 usage(B_FALSE); 523 } 524 if (depth < 0) { 525 (void) fprintf(stderr, 526 gettext("Depth can not be negative.\n")); 527 usage(B_FALSE); 528 } 529 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 530 return (depth); 531 } 532 533 #define PROGRESS_DELAY 2 /* seconds */ 534 535 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"; 536 static time_t pt_begin; 537 static char *pt_header = NULL; 538 static boolean_t pt_shown; 539 540 static void 541 start_progress_timer(void) 542 { 543 pt_begin = time(NULL) + PROGRESS_DELAY; 544 pt_shown = B_FALSE; 545 } 546 547 static void 548 set_progress_header(char *header) 549 { 550 assert(pt_header == NULL); 551 pt_header = safe_strdup(header); 552 if (pt_shown) { 553 (void) printf("%s: ", header); 554 (void) fflush(stdout); 555 } 556 } 557 558 static void 559 update_progress(char *update) 560 { 561 if (!pt_shown && time(NULL) > pt_begin) { 562 int len = strlen(update); 563 564 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 565 pt_reverse); 566 (void) fflush(stdout); 567 pt_shown = B_TRUE; 568 } else if (pt_shown) { 569 int len = strlen(update); 570 571 (void) printf("%s%*.*s", update, len, len, pt_reverse); 572 (void) fflush(stdout); 573 } 574 } 575 576 static void 577 finish_progress(char *done) 578 { 579 if (pt_shown) { 580 (void) printf("%s\n", done); 581 (void) fflush(stdout); 582 } 583 free(pt_header); 584 pt_header = NULL; 585 } 586 587 /* 588 * Check if the dataset is mountable and should be automatically mounted. 589 */ 590 static boolean_t 591 should_auto_mount(zfs_handle_t *zhp) 592 { 593 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 594 return (B_FALSE); 595 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 596 } 597 598 /* 599 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 600 * 601 * Given an existing dataset, create a writable copy whose initial contents 602 * are the same as the source. The newly created dataset maintains a 603 * dependency on the original; the original cannot be destroyed so long as 604 * the clone exists. 605 * 606 * The '-p' flag creates all the non-existing ancestors of the target first. 607 */ 608 static int 609 zfs_do_clone(int argc, char **argv) 610 { 611 zfs_handle_t *zhp = NULL; 612 boolean_t parents = B_FALSE; 613 nvlist_t *props; 614 int ret = 0; 615 int c; 616 617 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 618 nomem(); 619 620 /* check options */ 621 while ((c = getopt(argc, argv, "o:p")) != -1) { 622 switch (c) { 623 case 'o': 624 if (parseprop(props, optarg) != 0) 625 return (1); 626 break; 627 case 'p': 628 parents = B_TRUE; 629 break; 630 case '?': 631 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 632 optopt); 633 goto usage; 634 } 635 } 636 637 argc -= optind; 638 argv += optind; 639 640 /* check number of arguments */ 641 if (argc < 1) { 642 (void) fprintf(stderr, gettext("missing source dataset " 643 "argument\n")); 644 goto usage; 645 } 646 if (argc < 2) { 647 (void) fprintf(stderr, gettext("missing target dataset " 648 "argument\n")); 649 goto usage; 650 } 651 if (argc > 2) { 652 (void) fprintf(stderr, gettext("too many arguments\n")); 653 goto usage; 654 } 655 656 /* open the source dataset */ 657 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 658 return (1); 659 660 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 661 ZFS_TYPE_VOLUME)) { 662 /* 663 * Now create the ancestors of the target dataset. If the 664 * target already exists and '-p' option was used we should not 665 * complain. 666 */ 667 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 668 ZFS_TYPE_VOLUME)) 669 return (0); 670 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 671 return (1); 672 } 673 674 /* pass to libzfs */ 675 ret = zfs_clone(zhp, argv[1], props); 676 677 /* create the mountpoint if necessary */ 678 if (ret == 0) { 679 zfs_handle_t *clone; 680 681 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 682 if (clone != NULL) { 683 /* 684 * If the user doesn't want the dataset 685 * automatically mounted, then skip the mount/share 686 * step. 687 */ 688 if (should_auto_mount(clone)) { 689 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 690 (void) fprintf(stderr, gettext("clone " 691 "successfully created, " 692 "but not mounted\n")); 693 } else if ((ret = zfs_share(clone)) != 0) { 694 (void) fprintf(stderr, gettext("clone " 695 "successfully created, " 696 "but not shared\n")); 697 } 698 } 699 zfs_close(clone); 700 } 701 } 702 703 zfs_close(zhp); 704 nvlist_free(props); 705 706 return (!!ret); 707 708 usage: 709 if (zhp) 710 zfs_close(zhp); 711 nvlist_free(props); 712 usage(B_FALSE); 713 return (-1); 714 } 715 716 /* 717 * zfs create [-p] [-o prop=value] ... fs 718 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 719 * 720 * Create a new dataset. This command can be used to create filesystems 721 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 722 * For volumes, the user must specify a size to be used. 723 * 724 * The '-s' flag applies only to volumes, and indicates that we should not try 725 * to set the reservation for this volume. By default we set a reservation 726 * equal to the size for any volume. For pools with SPA_VERSION >= 727 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 728 * 729 * The '-p' flag creates all the non-existing ancestors of the target first. 730 */ 731 static int 732 zfs_do_create(int argc, char **argv) 733 { 734 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 735 zfs_handle_t *zhp = NULL; 736 uint64_t volsize = 0; 737 int c; 738 boolean_t noreserve = B_FALSE; 739 boolean_t bflag = B_FALSE; 740 boolean_t parents = B_FALSE; 741 int ret = 1; 742 nvlist_t *props; 743 uint64_t intval; 744 745 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 746 nomem(); 747 748 /* check options */ 749 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 750 switch (c) { 751 case 'V': 752 type = ZFS_TYPE_VOLUME; 753 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 754 (void) fprintf(stderr, gettext("bad volume " 755 "size '%s': %s\n"), optarg, 756 libzfs_error_description(g_zfs)); 757 goto error; 758 } 759 760 if (nvlist_add_uint64(props, 761 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 762 nomem(); 763 volsize = intval; 764 break; 765 case 'p': 766 parents = B_TRUE; 767 break; 768 case 'b': 769 bflag = B_TRUE; 770 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 771 (void) fprintf(stderr, gettext("bad volume " 772 "block size '%s': %s\n"), optarg, 773 libzfs_error_description(g_zfs)); 774 goto error; 775 } 776 777 if (nvlist_add_uint64(props, 778 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 779 intval) != 0) 780 nomem(); 781 break; 782 case 'o': 783 if (parseprop(props, optarg) != 0) 784 goto error; 785 break; 786 case 's': 787 noreserve = B_TRUE; 788 break; 789 case ':': 790 (void) fprintf(stderr, gettext("missing size " 791 "argument\n")); 792 goto badusage; 793 case '?': 794 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 795 optopt); 796 goto badusage; 797 } 798 } 799 800 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 801 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 802 "used when creating a volume\n")); 803 goto badusage; 804 } 805 806 argc -= optind; 807 argv += optind; 808 809 /* check number of arguments */ 810 if (argc == 0) { 811 (void) fprintf(stderr, gettext("missing %s argument\n"), 812 zfs_type_to_name(type)); 813 goto badusage; 814 } 815 if (argc > 1) { 816 (void) fprintf(stderr, gettext("too many arguments\n")); 817 goto badusage; 818 } 819 820 if (type == ZFS_TYPE_VOLUME && !noreserve) { 821 zpool_handle_t *zpool_handle; 822 nvlist_t *real_props = NULL; 823 uint64_t spa_version; 824 char *p; 825 zfs_prop_t resv_prop; 826 char *strval; 827 char msg[1024]; 828 829 if ((p = strchr(argv[0], '/')) != NULL) 830 *p = '\0'; 831 zpool_handle = zpool_open(g_zfs, argv[0]); 832 if (p != NULL) 833 *p = '/'; 834 if (zpool_handle == NULL) 835 goto error; 836 spa_version = zpool_get_prop_int(zpool_handle, 837 ZPOOL_PROP_VERSION, NULL); 838 if (spa_version >= SPA_VERSION_REFRESERVATION) 839 resv_prop = ZFS_PROP_REFRESERVATION; 840 else 841 resv_prop = ZFS_PROP_RESERVATION; 842 843 (void) snprintf(msg, sizeof (msg), 844 gettext("cannot create '%s'"), argv[0]); 845 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 846 props, 0, NULL, zpool_handle, msg)) == NULL) { 847 zpool_close(zpool_handle); 848 goto error; 849 } 850 zpool_close(zpool_handle); 851 852 volsize = zvol_volsize_to_reservation(volsize, real_props); 853 nvlist_free(real_props); 854 855 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 856 &strval) != 0) { 857 if (nvlist_add_uint64(props, 858 zfs_prop_to_name(resv_prop), volsize) != 0) { 859 nvlist_free(props); 860 nomem(); 861 } 862 } 863 } 864 865 if (parents && zfs_name_valid(argv[0], type)) { 866 /* 867 * Now create the ancestors of target dataset. If the target 868 * already exists and '-p' option was used we should not 869 * complain. 870 */ 871 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 872 ret = 0; 873 goto error; 874 } 875 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 876 goto error; 877 } 878 879 /* pass to libzfs */ 880 if (zfs_create(g_zfs, argv[0], type, props) != 0) 881 goto error; 882 883 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 884 goto error; 885 886 ret = 0; 887 888 /* 889 * Mount and/or share the new filesystem as appropriate. We provide a 890 * verbose error message to let the user know that their filesystem was 891 * in fact created, even if we failed to mount or share it. 892 * If the user doesn't want the dataset automatically mounted, 893 * then skip the mount/share step altogether. 894 */ 895 if (should_auto_mount(zhp)) { 896 if (zfs_mount(zhp, NULL, 0) != 0) { 897 (void) fprintf(stderr, gettext("filesystem " 898 "successfully created, but not mounted\n")); 899 ret = 1; 900 } else if (zfs_share(zhp) != 0) { 901 (void) fprintf(stderr, gettext("filesystem " 902 "successfully created, but not shared\n")); 903 ret = 1; 904 } 905 } 906 907 error: 908 if (zhp) 909 zfs_close(zhp); 910 nvlist_free(props); 911 return (ret); 912 badusage: 913 nvlist_free(props); 914 usage(B_FALSE); 915 return (2); 916 } 917 918 /* 919 * zfs destroy [-rRf] <fs, vol> 920 * zfs destroy [-rRd] <snap> 921 * 922 * -r Recursively destroy all children 923 * -R Recursively destroy all dependents, including clones 924 * -f Force unmounting of any dependents 925 * -d If we can't destroy now, mark for deferred destruction 926 * 927 * Destroys the given dataset. By default, it will unmount any filesystems, 928 * and refuse to destroy a dataset that has any dependents. A dependent can 929 * either be a child, or a clone of a child. 930 */ 931 typedef struct destroy_cbdata { 932 boolean_t cb_first; 933 boolean_t cb_force; 934 boolean_t cb_recurse; 935 boolean_t cb_error; 936 boolean_t cb_doclones; 937 zfs_handle_t *cb_target; 938 boolean_t cb_defer_destroy; 939 boolean_t cb_verbose; 940 boolean_t cb_parsable; 941 boolean_t cb_dryrun; 942 nvlist_t *cb_nvl; 943 nvlist_t *cb_batchedsnaps; 944 945 /* first snap in contiguous run */ 946 char *cb_firstsnap; 947 /* previous snap in contiguous run */ 948 char *cb_prevsnap; 949 int64_t cb_snapused; 950 char *cb_snapspec; 951 char *cb_bookmark; 952 } destroy_cbdata_t; 953 954 /* 955 * Check for any dependents based on the '-r' or '-R' flags. 956 */ 957 static int 958 destroy_check_dependent(zfs_handle_t *zhp, void *data) 959 { 960 destroy_cbdata_t *cbp = data; 961 const char *tname = zfs_get_name(cbp->cb_target); 962 const char *name = zfs_get_name(zhp); 963 964 if (strncmp(tname, name, strlen(tname)) == 0 && 965 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 966 /* 967 * This is a direct descendant, not a clone somewhere else in 968 * the hierarchy. 969 */ 970 if (cbp->cb_recurse) 971 goto out; 972 973 if (cbp->cb_first) { 974 (void) fprintf(stderr, gettext("cannot destroy '%s': " 975 "%s has children\n"), 976 zfs_get_name(cbp->cb_target), 977 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 978 (void) fprintf(stderr, gettext("use '-r' to destroy " 979 "the following datasets:\n")); 980 cbp->cb_first = B_FALSE; 981 cbp->cb_error = B_TRUE; 982 } 983 984 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 985 } else { 986 /* 987 * This is a clone. We only want to report this if the '-r' 988 * wasn't specified, or the target is a snapshot. 989 */ 990 if (!cbp->cb_recurse && 991 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 992 goto out; 993 994 if (cbp->cb_first) { 995 (void) fprintf(stderr, gettext("cannot destroy '%s': " 996 "%s has dependent clones\n"), 997 zfs_get_name(cbp->cb_target), 998 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 999 (void) fprintf(stderr, gettext("use '-R' to destroy " 1000 "the following datasets:\n")); 1001 cbp->cb_first = B_FALSE; 1002 cbp->cb_error = B_TRUE; 1003 cbp->cb_dryrun = B_TRUE; 1004 } 1005 1006 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1007 } 1008 1009 out: 1010 zfs_close(zhp); 1011 return (0); 1012 } 1013 1014 static int 1015 destroy_callback(zfs_handle_t *zhp, void *data) 1016 { 1017 destroy_cbdata_t *cb = data; 1018 const char *name = zfs_get_name(zhp); 1019 1020 if (cb->cb_verbose) { 1021 if (cb->cb_parsable) { 1022 (void) printf("destroy\t%s\n", name); 1023 } else if (cb->cb_dryrun) { 1024 (void) printf(gettext("would destroy %s\n"), 1025 name); 1026 } else { 1027 (void) printf(gettext("will destroy %s\n"), 1028 name); 1029 } 1030 } 1031 1032 /* 1033 * Ignore pools (which we've already flagged as an error before getting 1034 * here). 1035 */ 1036 if (strchr(zfs_get_name(zhp), '/') == NULL && 1037 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1038 zfs_close(zhp); 1039 return (0); 1040 } 1041 if (cb->cb_dryrun) { 1042 zfs_close(zhp); 1043 return (0); 1044 } 1045 1046 /* 1047 * We batch up all contiguous snapshots (even of different 1048 * filesystems) and destroy them with one ioctl. We can't 1049 * simply do all snap deletions and then all fs deletions, 1050 * because we must delete a clone before its origin. 1051 */ 1052 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1053 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1054 } else { 1055 int error = zfs_destroy_snaps_nvl(g_zfs, 1056 cb->cb_batchedsnaps, B_FALSE); 1057 fnvlist_free(cb->cb_batchedsnaps); 1058 cb->cb_batchedsnaps = fnvlist_alloc(); 1059 1060 if (error != 0 || 1061 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1062 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1063 zfs_close(zhp); 1064 return (-1); 1065 } 1066 } 1067 1068 zfs_close(zhp); 1069 return (0); 1070 } 1071 1072 static int 1073 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1074 { 1075 destroy_cbdata_t *cb = arg; 1076 const char *name = zfs_get_name(zhp); 1077 int err = 0; 1078 1079 if (nvlist_exists(cb->cb_nvl, name)) { 1080 if (cb->cb_firstsnap == NULL) 1081 cb->cb_firstsnap = strdup(name); 1082 if (cb->cb_prevsnap != NULL) 1083 free(cb->cb_prevsnap); 1084 /* this snap continues the current range */ 1085 cb->cb_prevsnap = strdup(name); 1086 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1087 nomem(); 1088 if (cb->cb_verbose) { 1089 if (cb->cb_parsable) { 1090 (void) printf("destroy\t%s\n", name); 1091 } else if (cb->cb_dryrun) { 1092 (void) printf(gettext("would destroy %s\n"), 1093 name); 1094 } else { 1095 (void) printf(gettext("will destroy %s\n"), 1096 name); 1097 } 1098 } 1099 } else if (cb->cb_firstsnap != NULL) { 1100 /* end of this range */ 1101 uint64_t used = 0; 1102 err = lzc_snaprange_space(cb->cb_firstsnap, 1103 cb->cb_prevsnap, &used); 1104 cb->cb_snapused += used; 1105 free(cb->cb_firstsnap); 1106 cb->cb_firstsnap = NULL; 1107 free(cb->cb_prevsnap); 1108 cb->cb_prevsnap = NULL; 1109 } 1110 zfs_close(zhp); 1111 return (err); 1112 } 1113 1114 static int 1115 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1116 { 1117 int err = 0; 1118 assert(cb->cb_firstsnap == NULL); 1119 assert(cb->cb_prevsnap == NULL); 1120 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1121 if (cb->cb_firstsnap != NULL) { 1122 uint64_t used = 0; 1123 if (err == 0) { 1124 err = lzc_snaprange_space(cb->cb_firstsnap, 1125 cb->cb_prevsnap, &used); 1126 } 1127 cb->cb_snapused += used; 1128 free(cb->cb_firstsnap); 1129 cb->cb_firstsnap = NULL; 1130 free(cb->cb_prevsnap); 1131 cb->cb_prevsnap = NULL; 1132 } 1133 return (err); 1134 } 1135 1136 static int 1137 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1138 { 1139 destroy_cbdata_t *cb = arg; 1140 int err = 0; 1141 1142 /* Check for clones. */ 1143 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1144 cb->cb_target = zhp; 1145 cb->cb_first = B_TRUE; 1146 err = zfs_iter_dependents(zhp, B_TRUE, 1147 destroy_check_dependent, cb); 1148 } 1149 1150 if (err == 0) { 1151 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1152 nomem(); 1153 } 1154 zfs_close(zhp); 1155 return (err); 1156 } 1157 1158 static int 1159 gather_snapshots(zfs_handle_t *zhp, void *arg) 1160 { 1161 destroy_cbdata_t *cb = arg; 1162 int err = 0; 1163 1164 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1165 if (err == ENOENT) 1166 err = 0; 1167 if (err != 0) 1168 goto out; 1169 1170 if (cb->cb_verbose) { 1171 err = destroy_print_snapshots(zhp, cb); 1172 if (err != 0) 1173 goto out; 1174 } 1175 1176 if (cb->cb_recurse) 1177 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1178 1179 out: 1180 zfs_close(zhp); 1181 return (err); 1182 } 1183 1184 static int 1185 destroy_clones(destroy_cbdata_t *cb) 1186 { 1187 nvpair_t *pair; 1188 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1189 pair != NULL; 1190 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1191 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1192 ZFS_TYPE_SNAPSHOT); 1193 if (zhp != NULL) { 1194 boolean_t defer = cb->cb_defer_destroy; 1195 int err = 0; 1196 1197 /* 1198 * We can't defer destroy non-snapshots, so set it to 1199 * false while destroying the clones. 1200 */ 1201 cb->cb_defer_destroy = B_FALSE; 1202 err = zfs_iter_dependents(zhp, B_FALSE, 1203 destroy_callback, cb); 1204 cb->cb_defer_destroy = defer; 1205 zfs_close(zhp); 1206 if (err != 0) 1207 return (err); 1208 } 1209 } 1210 return (0); 1211 } 1212 1213 static int 1214 zfs_do_destroy(int argc, char **argv) 1215 { 1216 destroy_cbdata_t cb = { 0 }; 1217 int rv = 0; 1218 int err = 0; 1219 int c; 1220 zfs_handle_t *zhp = NULL; 1221 char *at, *pound; 1222 zfs_type_t type = ZFS_TYPE_DATASET; 1223 1224 /* check options */ 1225 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1226 switch (c) { 1227 case 'v': 1228 cb.cb_verbose = B_TRUE; 1229 break; 1230 case 'p': 1231 cb.cb_verbose = B_TRUE; 1232 cb.cb_parsable = B_TRUE; 1233 break; 1234 case 'n': 1235 cb.cb_dryrun = B_TRUE; 1236 break; 1237 case 'd': 1238 cb.cb_defer_destroy = B_TRUE; 1239 type = ZFS_TYPE_SNAPSHOT; 1240 break; 1241 case 'f': 1242 cb.cb_force = B_TRUE; 1243 break; 1244 case 'r': 1245 cb.cb_recurse = B_TRUE; 1246 break; 1247 case 'R': 1248 cb.cb_recurse = B_TRUE; 1249 cb.cb_doclones = B_TRUE; 1250 break; 1251 case '?': 1252 default: 1253 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1254 optopt); 1255 usage(B_FALSE); 1256 } 1257 } 1258 1259 argc -= optind; 1260 argv += optind; 1261 1262 /* check number of arguments */ 1263 if (argc == 0) { 1264 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1265 usage(B_FALSE); 1266 } 1267 if (argc > 1) { 1268 (void) fprintf(stderr, gettext("too many arguments\n")); 1269 usage(B_FALSE); 1270 } 1271 1272 at = strchr(argv[0], '@'); 1273 pound = strchr(argv[0], '#'); 1274 if (at != NULL) { 1275 1276 /* Build the list of snaps to destroy in cb_nvl. */ 1277 cb.cb_nvl = fnvlist_alloc(); 1278 1279 *at = '\0'; 1280 zhp = zfs_open(g_zfs, argv[0], 1281 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1282 if (zhp == NULL) 1283 return (1); 1284 1285 cb.cb_snapspec = at + 1; 1286 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1287 cb.cb_error) { 1288 rv = 1; 1289 goto out; 1290 } 1291 1292 if (nvlist_empty(cb.cb_nvl)) { 1293 (void) fprintf(stderr, gettext("could not find any " 1294 "snapshots to destroy; check snapshot names.\n")); 1295 rv = 1; 1296 goto out; 1297 } 1298 1299 if (cb.cb_verbose) { 1300 char buf[16]; 1301 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1302 if (cb.cb_parsable) { 1303 (void) printf("reclaim\t%llu\n", 1304 cb.cb_snapused); 1305 } else if (cb.cb_dryrun) { 1306 (void) printf(gettext("would reclaim %s\n"), 1307 buf); 1308 } else { 1309 (void) printf(gettext("will reclaim %s\n"), 1310 buf); 1311 } 1312 } 1313 1314 if (!cb.cb_dryrun) { 1315 if (cb.cb_doclones) { 1316 cb.cb_batchedsnaps = fnvlist_alloc(); 1317 err = destroy_clones(&cb); 1318 if (err == 0) { 1319 err = zfs_destroy_snaps_nvl(g_zfs, 1320 cb.cb_batchedsnaps, B_FALSE); 1321 } 1322 if (err != 0) { 1323 rv = 1; 1324 goto out; 1325 } 1326 } 1327 if (err == 0) { 1328 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1329 cb.cb_defer_destroy); 1330 } 1331 } 1332 1333 if (err != 0) 1334 rv = 1; 1335 } else if (pound != NULL) { 1336 int err; 1337 nvlist_t *nvl; 1338 1339 if (cb.cb_dryrun) { 1340 (void) fprintf(stderr, 1341 "dryrun is not supported with bookmark\n"); 1342 return (-1); 1343 } 1344 1345 if (cb.cb_defer_destroy) { 1346 (void) fprintf(stderr, 1347 "defer destroy is not supported with bookmark\n"); 1348 return (-1); 1349 } 1350 1351 if (cb.cb_recurse) { 1352 (void) fprintf(stderr, 1353 "recursive is not supported with bookmark\n"); 1354 return (-1); 1355 } 1356 1357 if (!zfs_bookmark_exists(argv[0])) { 1358 (void) fprintf(stderr, gettext("bookmark '%s' " 1359 "does not exist.\n"), argv[0]); 1360 return (1); 1361 } 1362 1363 nvl = fnvlist_alloc(); 1364 fnvlist_add_boolean(nvl, argv[0]); 1365 1366 err = lzc_destroy_bookmarks(nvl, NULL); 1367 if (err != 0) { 1368 (void) zfs_standard_error(g_zfs, err, 1369 "cannot destroy bookmark"); 1370 } 1371 1372 nvlist_free(cb.cb_nvl); 1373 1374 return (err); 1375 } else { 1376 /* Open the given dataset */ 1377 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1378 return (1); 1379 1380 cb.cb_target = zhp; 1381 1382 /* 1383 * Perform an explicit check for pools before going any further. 1384 */ 1385 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1386 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1387 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1388 "operation does not apply to pools\n"), 1389 zfs_get_name(zhp)); 1390 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1391 "%s' to destroy all datasets in the pool\n"), 1392 zfs_get_name(zhp)); 1393 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1394 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1395 rv = 1; 1396 goto out; 1397 } 1398 1399 /* 1400 * Check for any dependents and/or clones. 1401 */ 1402 cb.cb_first = B_TRUE; 1403 if (!cb.cb_doclones && 1404 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1405 &cb) != 0) { 1406 rv = 1; 1407 goto out; 1408 } 1409 1410 if (cb.cb_error) { 1411 rv = 1; 1412 goto out; 1413 } 1414 1415 cb.cb_batchedsnaps = fnvlist_alloc(); 1416 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1417 &cb) != 0) { 1418 rv = 1; 1419 goto out; 1420 } 1421 1422 /* 1423 * Do the real thing. The callback will close the 1424 * handle regardless of whether it succeeds or not. 1425 */ 1426 err = destroy_callback(zhp, &cb); 1427 zhp = NULL; 1428 if (err == 0) { 1429 err = zfs_destroy_snaps_nvl(g_zfs, 1430 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1431 } 1432 if (err != 0) 1433 rv = 1; 1434 } 1435 1436 out: 1437 fnvlist_free(cb.cb_batchedsnaps); 1438 fnvlist_free(cb.cb_nvl); 1439 if (zhp != NULL) 1440 zfs_close(zhp); 1441 return (rv); 1442 } 1443 1444 static boolean_t 1445 is_recvd_column(zprop_get_cbdata_t *cbp) 1446 { 1447 int i; 1448 zfs_get_column_t col; 1449 1450 for (i = 0; i < ZFS_GET_NCOLS && 1451 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1452 if (col == GET_COL_RECVD) 1453 return (B_TRUE); 1454 return (B_FALSE); 1455 } 1456 1457 /* 1458 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1459 * < all | property[,property]... > < fs | snap | vol > ... 1460 * 1461 * -r recurse over any child datasets 1462 * -H scripted mode. Headers are stripped, and fields are separated 1463 * by tabs instead of spaces. 1464 * -o Set of fields to display. One of "name,property,value, 1465 * received,source". Default is "name,property,value,source". 1466 * "all" is an alias for all five. 1467 * -s Set of sources to allow. One of 1468 * "local,default,inherited,received,temporary,none". Default is 1469 * all six. 1470 * -p Display values in parsable (literal) format. 1471 * 1472 * Prints properties for the given datasets. The user can control which 1473 * columns to display as well as which property types to allow. 1474 */ 1475 1476 /* 1477 * Invoked to display the properties for a single dataset. 1478 */ 1479 static int 1480 get_callback(zfs_handle_t *zhp, void *data) 1481 { 1482 char buf[ZFS_MAXPROPLEN]; 1483 char rbuf[ZFS_MAXPROPLEN]; 1484 zprop_source_t sourcetype; 1485 char source[ZFS_MAX_DATASET_NAME_LEN]; 1486 zprop_get_cbdata_t *cbp = data; 1487 nvlist_t *user_props = zfs_get_user_props(zhp); 1488 zprop_list_t *pl = cbp->cb_proplist; 1489 nvlist_t *propval; 1490 char *strval; 1491 char *sourceval; 1492 boolean_t received = is_recvd_column(cbp); 1493 1494 for (; pl != NULL; pl = pl->pl_next) { 1495 char *recvdval = NULL; 1496 /* 1497 * Skip the special fake placeholder. This will also skip over 1498 * the name property when 'all' is specified. 1499 */ 1500 if (pl->pl_prop == ZFS_PROP_NAME && 1501 pl == cbp->cb_proplist) 1502 continue; 1503 1504 if (pl->pl_prop != ZPROP_INVAL) { 1505 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1506 sizeof (buf), &sourcetype, source, 1507 sizeof (source), 1508 cbp->cb_literal) != 0) { 1509 if (pl->pl_all) 1510 continue; 1511 if (!zfs_prop_valid_for_type(pl->pl_prop, 1512 ZFS_TYPE_DATASET)) { 1513 (void) fprintf(stderr, 1514 gettext("No such property '%s'\n"), 1515 zfs_prop_to_name(pl->pl_prop)); 1516 continue; 1517 } 1518 sourcetype = ZPROP_SRC_NONE; 1519 (void) strlcpy(buf, "-", sizeof (buf)); 1520 } 1521 1522 if (received && (zfs_prop_get_recvd(zhp, 1523 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1524 cbp->cb_literal) == 0)) 1525 recvdval = rbuf; 1526 1527 zprop_print_one_property(zfs_get_name(zhp), cbp, 1528 zfs_prop_to_name(pl->pl_prop), 1529 buf, sourcetype, source, recvdval); 1530 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1531 sourcetype = ZPROP_SRC_LOCAL; 1532 1533 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1534 buf, sizeof (buf), cbp->cb_literal) != 0) { 1535 sourcetype = ZPROP_SRC_NONE; 1536 (void) strlcpy(buf, "-", sizeof (buf)); 1537 } 1538 1539 zprop_print_one_property(zfs_get_name(zhp), cbp, 1540 pl->pl_user_prop, buf, sourcetype, source, NULL); 1541 } else if (zfs_prop_written(pl->pl_user_prop)) { 1542 sourcetype = ZPROP_SRC_LOCAL; 1543 1544 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1545 buf, sizeof (buf), cbp->cb_literal) != 0) { 1546 sourcetype = ZPROP_SRC_NONE; 1547 (void) strlcpy(buf, "-", sizeof (buf)); 1548 } 1549 1550 zprop_print_one_property(zfs_get_name(zhp), cbp, 1551 pl->pl_user_prop, buf, sourcetype, source, NULL); 1552 } else { 1553 if (nvlist_lookup_nvlist(user_props, 1554 pl->pl_user_prop, &propval) != 0) { 1555 if (pl->pl_all) 1556 continue; 1557 sourcetype = ZPROP_SRC_NONE; 1558 strval = "-"; 1559 } else { 1560 verify(nvlist_lookup_string(propval, 1561 ZPROP_VALUE, &strval) == 0); 1562 verify(nvlist_lookup_string(propval, 1563 ZPROP_SOURCE, &sourceval) == 0); 1564 1565 if (strcmp(sourceval, 1566 zfs_get_name(zhp)) == 0) { 1567 sourcetype = ZPROP_SRC_LOCAL; 1568 } else if (strcmp(sourceval, 1569 ZPROP_SOURCE_VAL_RECVD) == 0) { 1570 sourcetype = ZPROP_SRC_RECEIVED; 1571 } else { 1572 sourcetype = ZPROP_SRC_INHERITED; 1573 (void) strlcpy(source, 1574 sourceval, sizeof (source)); 1575 } 1576 } 1577 1578 if (received && (zfs_prop_get_recvd(zhp, 1579 pl->pl_user_prop, rbuf, sizeof (rbuf), 1580 cbp->cb_literal) == 0)) 1581 recvdval = rbuf; 1582 1583 zprop_print_one_property(zfs_get_name(zhp), cbp, 1584 pl->pl_user_prop, strval, sourcetype, 1585 source, recvdval); 1586 } 1587 } 1588 1589 return (0); 1590 } 1591 1592 static int 1593 zfs_do_get(int argc, char **argv) 1594 { 1595 zprop_get_cbdata_t cb = { 0 }; 1596 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1597 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1598 char *value, *fields; 1599 int ret = 0; 1600 int limit = 0; 1601 zprop_list_t fake_name = { 0 }; 1602 1603 /* 1604 * Set up default columns and sources. 1605 */ 1606 cb.cb_sources = ZPROP_SRC_ALL; 1607 cb.cb_columns[0] = GET_COL_NAME; 1608 cb.cb_columns[1] = GET_COL_PROPERTY; 1609 cb.cb_columns[2] = GET_COL_VALUE; 1610 cb.cb_columns[3] = GET_COL_SOURCE; 1611 cb.cb_type = ZFS_TYPE_DATASET; 1612 1613 /* check options */ 1614 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1615 switch (c) { 1616 case 'p': 1617 cb.cb_literal = B_TRUE; 1618 break; 1619 case 'd': 1620 limit = parse_depth(optarg, &flags); 1621 break; 1622 case 'r': 1623 flags |= ZFS_ITER_RECURSE; 1624 break; 1625 case 'H': 1626 cb.cb_scripted = B_TRUE; 1627 break; 1628 case ':': 1629 (void) fprintf(stderr, gettext("missing argument for " 1630 "'%c' option\n"), optopt); 1631 usage(B_FALSE); 1632 break; 1633 case 'o': 1634 /* 1635 * Process the set of columns to display. We zero out 1636 * the structure to give us a blank slate. 1637 */ 1638 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1639 i = 0; 1640 while (*optarg != '\0') { 1641 static char *col_subopts[] = 1642 { "name", "property", "value", "received", 1643 "source", "all", NULL }; 1644 1645 if (i == ZFS_GET_NCOLS) { 1646 (void) fprintf(stderr, gettext("too " 1647 "many fields given to -o " 1648 "option\n")); 1649 usage(B_FALSE); 1650 } 1651 1652 switch (getsubopt(&optarg, col_subopts, 1653 &value)) { 1654 case 0: 1655 cb.cb_columns[i++] = GET_COL_NAME; 1656 break; 1657 case 1: 1658 cb.cb_columns[i++] = GET_COL_PROPERTY; 1659 break; 1660 case 2: 1661 cb.cb_columns[i++] = GET_COL_VALUE; 1662 break; 1663 case 3: 1664 cb.cb_columns[i++] = GET_COL_RECVD; 1665 flags |= ZFS_ITER_RECVD_PROPS; 1666 break; 1667 case 4: 1668 cb.cb_columns[i++] = GET_COL_SOURCE; 1669 break; 1670 case 5: 1671 if (i > 0) { 1672 (void) fprintf(stderr, 1673 gettext("\"all\" conflicts " 1674 "with specific fields " 1675 "given to -o option\n")); 1676 usage(B_FALSE); 1677 } 1678 cb.cb_columns[0] = GET_COL_NAME; 1679 cb.cb_columns[1] = GET_COL_PROPERTY; 1680 cb.cb_columns[2] = GET_COL_VALUE; 1681 cb.cb_columns[3] = GET_COL_RECVD; 1682 cb.cb_columns[4] = GET_COL_SOURCE; 1683 flags |= ZFS_ITER_RECVD_PROPS; 1684 i = ZFS_GET_NCOLS; 1685 break; 1686 default: 1687 (void) fprintf(stderr, 1688 gettext("invalid column name " 1689 "'%s'\n"), value); 1690 usage(B_FALSE); 1691 } 1692 } 1693 break; 1694 1695 case 's': 1696 cb.cb_sources = 0; 1697 while (*optarg != '\0') { 1698 static char *source_subopts[] = { 1699 "local", "default", "inherited", 1700 "received", "temporary", "none", 1701 NULL }; 1702 1703 switch (getsubopt(&optarg, source_subopts, 1704 &value)) { 1705 case 0: 1706 cb.cb_sources |= ZPROP_SRC_LOCAL; 1707 break; 1708 case 1: 1709 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1710 break; 1711 case 2: 1712 cb.cb_sources |= ZPROP_SRC_INHERITED; 1713 break; 1714 case 3: 1715 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1716 break; 1717 case 4: 1718 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1719 break; 1720 case 5: 1721 cb.cb_sources |= ZPROP_SRC_NONE; 1722 break; 1723 default: 1724 (void) fprintf(stderr, 1725 gettext("invalid source " 1726 "'%s'\n"), value); 1727 usage(B_FALSE); 1728 } 1729 } 1730 break; 1731 1732 case 't': 1733 types = 0; 1734 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1735 while (*optarg != '\0') { 1736 static char *type_subopts[] = { "filesystem", 1737 "volume", "snapshot", "bookmark", 1738 "all", NULL }; 1739 1740 switch (getsubopt(&optarg, type_subopts, 1741 &value)) { 1742 case 0: 1743 types |= ZFS_TYPE_FILESYSTEM; 1744 break; 1745 case 1: 1746 types |= ZFS_TYPE_VOLUME; 1747 break; 1748 case 2: 1749 types |= ZFS_TYPE_SNAPSHOT; 1750 break; 1751 case 3: 1752 types |= ZFS_TYPE_BOOKMARK; 1753 break; 1754 case 4: 1755 types = ZFS_TYPE_DATASET | 1756 ZFS_TYPE_BOOKMARK; 1757 break; 1758 1759 default: 1760 (void) fprintf(stderr, 1761 gettext("invalid type '%s'\n"), 1762 value); 1763 usage(B_FALSE); 1764 } 1765 } 1766 break; 1767 1768 case '?': 1769 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1770 optopt); 1771 usage(B_FALSE); 1772 } 1773 } 1774 1775 argc -= optind; 1776 argv += optind; 1777 1778 if (argc < 1) { 1779 (void) fprintf(stderr, gettext("missing property " 1780 "argument\n")); 1781 usage(B_FALSE); 1782 } 1783 1784 fields = argv[0]; 1785 1786 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1787 != 0) 1788 usage(B_FALSE); 1789 1790 argc--; 1791 argv++; 1792 1793 /* 1794 * As part of zfs_expand_proplist(), we keep track of the maximum column 1795 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1796 * need to know the maximum name length. However, the user likely did 1797 * not specify 'name' as one of the properties to fetch, so we need to 1798 * make sure we always include at least this property for 1799 * print_get_headers() to work properly. 1800 */ 1801 if (cb.cb_proplist != NULL) { 1802 fake_name.pl_prop = ZFS_PROP_NAME; 1803 fake_name.pl_width = strlen(gettext("NAME")); 1804 fake_name.pl_next = cb.cb_proplist; 1805 cb.cb_proplist = &fake_name; 1806 } 1807 1808 cb.cb_first = B_TRUE; 1809 1810 /* run for each object */ 1811 ret = zfs_for_each(argc, argv, flags, types, NULL, 1812 &cb.cb_proplist, limit, get_callback, &cb); 1813 1814 if (cb.cb_proplist == &fake_name) 1815 zprop_free_list(fake_name.pl_next); 1816 else 1817 zprop_free_list(cb.cb_proplist); 1818 1819 return (ret); 1820 } 1821 1822 /* 1823 * inherit [-rS] <property> <fs|vol> ... 1824 * 1825 * -r Recurse over all children 1826 * -S Revert to received value, if any 1827 * 1828 * For each dataset specified on the command line, inherit the given property 1829 * from its parent. Inheriting a property at the pool level will cause it to 1830 * use the default value. The '-r' flag will recurse over all children, and is 1831 * useful for setting a property on a hierarchy-wide basis, regardless of any 1832 * local modifications for each dataset. 1833 */ 1834 1835 typedef struct inherit_cbdata { 1836 const char *cb_propname; 1837 boolean_t cb_received; 1838 } inherit_cbdata_t; 1839 1840 static int 1841 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1842 { 1843 inherit_cbdata_t *cb = data; 1844 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1845 1846 /* 1847 * If we're doing it recursively, then ignore properties that 1848 * are not valid for this type of dataset. 1849 */ 1850 if (prop != ZPROP_INVAL && 1851 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1852 return (0); 1853 1854 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1855 } 1856 1857 static int 1858 inherit_cb(zfs_handle_t *zhp, void *data) 1859 { 1860 inherit_cbdata_t *cb = data; 1861 1862 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1863 } 1864 1865 static int 1866 zfs_do_inherit(int argc, char **argv) 1867 { 1868 int c; 1869 zfs_prop_t prop; 1870 inherit_cbdata_t cb = { 0 }; 1871 char *propname; 1872 int ret = 0; 1873 int flags = 0; 1874 boolean_t received = B_FALSE; 1875 1876 /* check options */ 1877 while ((c = getopt(argc, argv, "rS")) != -1) { 1878 switch (c) { 1879 case 'r': 1880 flags |= ZFS_ITER_RECURSE; 1881 break; 1882 case 'S': 1883 received = B_TRUE; 1884 break; 1885 case '?': 1886 default: 1887 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1888 optopt); 1889 usage(B_FALSE); 1890 } 1891 } 1892 1893 argc -= optind; 1894 argv += optind; 1895 1896 /* check number of arguments */ 1897 if (argc < 1) { 1898 (void) fprintf(stderr, gettext("missing property argument\n")); 1899 usage(B_FALSE); 1900 } 1901 if (argc < 2) { 1902 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1903 usage(B_FALSE); 1904 } 1905 1906 propname = argv[0]; 1907 argc--; 1908 argv++; 1909 1910 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1911 if (zfs_prop_readonly(prop)) { 1912 (void) fprintf(stderr, gettext( 1913 "%s property is read-only\n"), 1914 propname); 1915 return (1); 1916 } 1917 if (!zfs_prop_inheritable(prop) && !received) { 1918 (void) fprintf(stderr, gettext("'%s' property cannot " 1919 "be inherited\n"), propname); 1920 if (prop == ZFS_PROP_QUOTA || 1921 prop == ZFS_PROP_RESERVATION || 1922 prop == ZFS_PROP_REFQUOTA || 1923 prop == ZFS_PROP_REFRESERVATION) { 1924 (void) fprintf(stderr, gettext("use 'zfs set " 1925 "%s=none' to clear\n"), propname); 1926 (void) fprintf(stderr, gettext("use 'zfs " 1927 "inherit -S %s' to revert to received " 1928 "value\n"), propname); 1929 } 1930 return (1); 1931 } 1932 if (received && (prop == ZFS_PROP_VOLSIZE || 1933 prop == ZFS_PROP_VERSION)) { 1934 (void) fprintf(stderr, gettext("'%s' property cannot " 1935 "be reverted to a received value\n"), propname); 1936 return (1); 1937 } 1938 } else if (!zfs_prop_user(propname)) { 1939 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1940 propname); 1941 usage(B_FALSE); 1942 } 1943 1944 cb.cb_propname = propname; 1945 cb.cb_received = received; 1946 1947 if (flags & ZFS_ITER_RECURSE) { 1948 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1949 NULL, NULL, 0, inherit_recurse_cb, &cb); 1950 } else { 1951 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1952 NULL, NULL, 0, inherit_cb, &cb); 1953 } 1954 1955 return (ret); 1956 } 1957 1958 typedef struct upgrade_cbdata { 1959 uint64_t cb_numupgraded; 1960 uint64_t cb_numsamegraded; 1961 uint64_t cb_numfailed; 1962 uint64_t cb_version; 1963 boolean_t cb_newer; 1964 boolean_t cb_foundone; 1965 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1966 } upgrade_cbdata_t; 1967 1968 static int 1969 same_pool(zfs_handle_t *zhp, const char *name) 1970 { 1971 int len1 = strcspn(name, "/@"); 1972 const char *zhname = zfs_get_name(zhp); 1973 int len2 = strcspn(zhname, "/@"); 1974 1975 if (len1 != len2) 1976 return (B_FALSE); 1977 return (strncmp(name, zhname, len1) == 0); 1978 } 1979 1980 static int 1981 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1982 { 1983 upgrade_cbdata_t *cb = data; 1984 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1985 1986 /* list if it's old/new */ 1987 if ((!cb->cb_newer && version < ZPL_VERSION) || 1988 (cb->cb_newer && version > ZPL_VERSION)) { 1989 char *str; 1990 if (cb->cb_newer) { 1991 str = gettext("The following filesystems are " 1992 "formatted using a newer software version and\n" 1993 "cannot be accessed on the current system.\n\n"); 1994 } else { 1995 str = gettext("The following filesystems are " 1996 "out of date, and can be upgraded. After being\n" 1997 "upgraded, these filesystems (and any 'zfs send' " 1998 "streams generated from\n" 1999 "subsequent snapshots) will no longer be " 2000 "accessible by older software versions.\n\n"); 2001 } 2002 2003 if (!cb->cb_foundone) { 2004 (void) puts(str); 2005 (void) printf(gettext("VER FILESYSTEM\n")); 2006 (void) printf(gettext("--- ------------\n")); 2007 cb->cb_foundone = B_TRUE; 2008 } 2009 2010 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2011 } 2012 2013 return (0); 2014 } 2015 2016 static int 2017 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2018 { 2019 upgrade_cbdata_t *cb = data; 2020 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2021 int needed_spa_version; 2022 int spa_version; 2023 2024 if (zfs_spa_version(zhp, &spa_version) < 0) 2025 return (-1); 2026 2027 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2028 2029 if (needed_spa_version < 0) 2030 return (-1); 2031 2032 if (spa_version < needed_spa_version) { 2033 /* can't upgrade */ 2034 (void) printf(gettext("%s: can not be " 2035 "upgraded; the pool version needs to first " 2036 "be upgraded\nto version %d\n\n"), 2037 zfs_get_name(zhp), needed_spa_version); 2038 cb->cb_numfailed++; 2039 return (0); 2040 } 2041 2042 /* upgrade */ 2043 if (version < cb->cb_version) { 2044 char verstr[16]; 2045 (void) snprintf(verstr, sizeof (verstr), 2046 "%llu", cb->cb_version); 2047 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2048 /* 2049 * If they did "zfs upgrade -a", then we could 2050 * be doing ioctls to different pools. We need 2051 * to log this history once to each pool, and bypass 2052 * the normal history logging that happens in main(). 2053 */ 2054 (void) zpool_log_history(g_zfs, history_str); 2055 log_history = B_FALSE; 2056 } 2057 if (zfs_prop_set(zhp, "version", verstr) == 0) 2058 cb->cb_numupgraded++; 2059 else 2060 cb->cb_numfailed++; 2061 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2062 } else if (version > cb->cb_version) { 2063 /* can't downgrade */ 2064 (void) printf(gettext("%s: can not be downgraded; " 2065 "it is already at version %u\n"), 2066 zfs_get_name(zhp), version); 2067 cb->cb_numfailed++; 2068 } else { 2069 cb->cb_numsamegraded++; 2070 } 2071 return (0); 2072 } 2073 2074 /* 2075 * zfs upgrade 2076 * zfs upgrade -v 2077 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2078 */ 2079 static int 2080 zfs_do_upgrade(int argc, char **argv) 2081 { 2082 boolean_t all = B_FALSE; 2083 boolean_t showversions = B_FALSE; 2084 int ret = 0; 2085 upgrade_cbdata_t cb = { 0 }; 2086 char c; 2087 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2088 2089 /* check options */ 2090 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2091 switch (c) { 2092 case 'r': 2093 flags |= ZFS_ITER_RECURSE; 2094 break; 2095 case 'v': 2096 showversions = B_TRUE; 2097 break; 2098 case 'V': 2099 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2100 optarg, &cb.cb_version) != 0) { 2101 (void) fprintf(stderr, 2102 gettext("invalid version %s\n"), optarg); 2103 usage(B_FALSE); 2104 } 2105 break; 2106 case 'a': 2107 all = B_TRUE; 2108 break; 2109 case '?': 2110 default: 2111 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2112 optopt); 2113 usage(B_FALSE); 2114 } 2115 } 2116 2117 argc -= optind; 2118 argv += optind; 2119 2120 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2121 usage(B_FALSE); 2122 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2123 cb.cb_version || argc)) 2124 usage(B_FALSE); 2125 if ((all || argc) && (showversions)) 2126 usage(B_FALSE); 2127 if (all && argc) 2128 usage(B_FALSE); 2129 2130 if (showversions) { 2131 /* Show info on available versions. */ 2132 (void) printf(gettext("The following filesystem versions are " 2133 "supported:\n\n")); 2134 (void) printf(gettext("VER DESCRIPTION\n")); 2135 (void) printf("--- -----------------------------------------" 2136 "---------------\n"); 2137 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2138 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2139 (void) printf(gettext(" 3 Case insensitive and filesystem " 2140 "user identifier (FUID)\n")); 2141 (void) printf(gettext(" 4 userquota, groupquota " 2142 "properties\n")); 2143 (void) printf(gettext(" 5 System attributes\n")); 2144 (void) printf(gettext("\nFor more information on a particular " 2145 "version, including supported releases,\n")); 2146 (void) printf("see the ZFS Administration Guide.\n\n"); 2147 ret = 0; 2148 } else if (argc || all) { 2149 /* Upgrade filesystems */ 2150 if (cb.cb_version == 0) 2151 cb.cb_version = ZPL_VERSION; 2152 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2153 NULL, NULL, 0, upgrade_set_callback, &cb); 2154 (void) printf(gettext("%llu filesystems upgraded\n"), 2155 cb.cb_numupgraded); 2156 if (cb.cb_numsamegraded) { 2157 (void) printf(gettext("%llu filesystems already at " 2158 "this version\n"), 2159 cb.cb_numsamegraded); 2160 } 2161 if (cb.cb_numfailed != 0) 2162 ret = 1; 2163 } else { 2164 /* List old-version filesytems */ 2165 boolean_t found; 2166 (void) printf(gettext("This system is currently running " 2167 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2168 2169 flags |= ZFS_ITER_RECURSE; 2170 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2171 NULL, NULL, 0, upgrade_list_callback, &cb); 2172 2173 found = cb.cb_foundone; 2174 cb.cb_foundone = B_FALSE; 2175 cb.cb_newer = B_TRUE; 2176 2177 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2178 NULL, NULL, 0, upgrade_list_callback, &cb); 2179 2180 if (!cb.cb_foundone && !found) { 2181 (void) printf(gettext("All filesystems are " 2182 "formatted with the current version.\n")); 2183 } 2184 } 2185 2186 return (ret); 2187 } 2188 2189 /* 2190 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2191 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2192 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2193 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2194 * 2195 * -H Scripted mode; elide headers and separate columns by tabs. 2196 * -i Translate SID to POSIX ID. 2197 * -n Print numeric ID instead of user/group name. 2198 * -o Control which fields to display. 2199 * -p Use exact (parsable) numeric output. 2200 * -s Specify sort columns, descending order. 2201 * -S Specify sort columns, ascending order. 2202 * -t Control which object types to display. 2203 * 2204 * Displays space consumed by, and quotas on, each user in the specified 2205 * filesystem or snapshot. 2206 */ 2207 2208 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2209 enum us_field_types { 2210 USFIELD_TYPE, 2211 USFIELD_NAME, 2212 USFIELD_USED, 2213 USFIELD_QUOTA 2214 }; 2215 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2216 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2217 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2218 2219 #define USTYPE_PSX_GRP (1 << 0) 2220 #define USTYPE_PSX_USR (1 << 1) 2221 #define USTYPE_SMB_GRP (1 << 2) 2222 #define USTYPE_SMB_USR (1 << 3) 2223 #define USTYPE_ALL \ 2224 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2225 2226 static int us_type_bits[] = { 2227 USTYPE_PSX_GRP, 2228 USTYPE_PSX_USR, 2229 USTYPE_SMB_GRP, 2230 USTYPE_SMB_USR, 2231 USTYPE_ALL 2232 }; 2233 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2234 "smbuser", "all" }; 2235 2236 typedef struct us_node { 2237 nvlist_t *usn_nvl; 2238 uu_avl_node_t usn_avlnode; 2239 uu_list_node_t usn_listnode; 2240 } us_node_t; 2241 2242 typedef struct us_cbdata { 2243 nvlist_t **cb_nvlp; 2244 uu_avl_pool_t *cb_avl_pool; 2245 uu_avl_t *cb_avl; 2246 boolean_t cb_numname; 2247 boolean_t cb_nicenum; 2248 boolean_t cb_sid2posix; 2249 zfs_userquota_prop_t cb_prop; 2250 zfs_sort_column_t *cb_sortcol; 2251 size_t cb_width[USFIELD_LAST]; 2252 } us_cbdata_t; 2253 2254 static boolean_t us_populated = B_FALSE; 2255 2256 typedef struct { 2257 zfs_sort_column_t *si_sortcol; 2258 boolean_t si_numname; 2259 } us_sort_info_t; 2260 2261 static int 2262 us_field_index(char *field) 2263 { 2264 int i; 2265 2266 for (i = 0; i < USFIELD_LAST; i++) { 2267 if (strcmp(field, us_field_names[i]) == 0) 2268 return (i); 2269 } 2270 2271 return (-1); 2272 } 2273 2274 static int 2275 us_compare(const void *larg, const void *rarg, void *unused) 2276 { 2277 const us_node_t *l = larg; 2278 const us_node_t *r = rarg; 2279 us_sort_info_t *si = (us_sort_info_t *)unused; 2280 zfs_sort_column_t *sortcol = si->si_sortcol; 2281 boolean_t numname = si->si_numname; 2282 nvlist_t *lnvl = l->usn_nvl; 2283 nvlist_t *rnvl = r->usn_nvl; 2284 int rc = 0; 2285 boolean_t lvb, rvb; 2286 2287 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2288 char *lvstr = ""; 2289 char *rvstr = ""; 2290 uint32_t lv32 = 0; 2291 uint32_t rv32 = 0; 2292 uint64_t lv64 = 0; 2293 uint64_t rv64 = 0; 2294 zfs_prop_t prop = sortcol->sc_prop; 2295 const char *propname = NULL; 2296 boolean_t reverse = sortcol->sc_reverse; 2297 2298 switch (prop) { 2299 case ZFS_PROP_TYPE: 2300 propname = "type"; 2301 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2302 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2303 if (rv32 != lv32) 2304 rc = (rv32 < lv32) ? 1 : -1; 2305 break; 2306 case ZFS_PROP_NAME: 2307 propname = "name"; 2308 if (numname) { 2309 (void) nvlist_lookup_uint64(lnvl, propname, 2310 &lv64); 2311 (void) nvlist_lookup_uint64(rnvl, propname, 2312 &rv64); 2313 if (rv64 != lv64) 2314 rc = (rv64 < lv64) ? 1 : -1; 2315 } else { 2316 (void) nvlist_lookup_string(lnvl, propname, 2317 &lvstr); 2318 (void) nvlist_lookup_string(rnvl, propname, 2319 &rvstr); 2320 rc = strcmp(lvstr, rvstr); 2321 } 2322 break; 2323 case ZFS_PROP_USED: 2324 case ZFS_PROP_QUOTA: 2325 if (!us_populated) 2326 break; 2327 if (prop == ZFS_PROP_USED) 2328 propname = "used"; 2329 else 2330 propname = "quota"; 2331 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2332 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2333 if (rv64 != lv64) 2334 rc = (rv64 < lv64) ? 1 : -1; 2335 break; 2336 2337 default: 2338 break; 2339 } 2340 2341 if (rc != 0) { 2342 if (rc < 0) 2343 return (reverse ? 1 : -1); 2344 else 2345 return (reverse ? -1 : 1); 2346 } 2347 } 2348 2349 /* 2350 * If entries still seem to be the same, check if they are of the same 2351 * type (smbentity is added only if we are doing SID to POSIX ID 2352 * translation where we can have duplicate type/name combinations). 2353 */ 2354 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2355 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2356 lvb != rvb) 2357 return (lvb < rvb ? -1 : 1); 2358 2359 return (0); 2360 } 2361 2362 static inline const char * 2363 us_type2str(unsigned field_type) 2364 { 2365 switch (field_type) { 2366 case USTYPE_PSX_USR: 2367 return ("POSIX User"); 2368 case USTYPE_PSX_GRP: 2369 return ("POSIX Group"); 2370 case USTYPE_SMB_USR: 2371 return ("SMB User"); 2372 case USTYPE_SMB_GRP: 2373 return ("SMB Group"); 2374 default: 2375 return ("Undefined"); 2376 } 2377 } 2378 2379 static int 2380 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2381 { 2382 us_cbdata_t *cb = (us_cbdata_t *)arg; 2383 zfs_userquota_prop_t prop = cb->cb_prop; 2384 char *name = NULL; 2385 char *propname; 2386 char sizebuf[32]; 2387 us_node_t *node; 2388 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2389 uu_avl_t *avl = cb->cb_avl; 2390 uu_avl_index_t idx; 2391 nvlist_t *props; 2392 us_node_t *n; 2393 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2394 unsigned type = 0; 2395 const char *typestr; 2396 size_t namelen; 2397 size_t typelen; 2398 size_t sizelen; 2399 int typeidx, nameidx, sizeidx; 2400 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2401 boolean_t smbentity = B_FALSE; 2402 2403 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2404 nomem(); 2405 node = safe_malloc(sizeof (us_node_t)); 2406 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2407 node->usn_nvl = props; 2408 2409 if (domain != NULL && domain[0] != '\0') { 2410 /* SMB */ 2411 char sid[MAXNAMELEN + 32]; 2412 uid_t id; 2413 int err; 2414 int flag = IDMAP_REQ_FLG_USE_CACHE; 2415 2416 smbentity = B_TRUE; 2417 2418 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2419 2420 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2421 type = USTYPE_SMB_GRP; 2422 err = sid_to_id(sid, B_FALSE, &id); 2423 } else { 2424 type = USTYPE_SMB_USR; 2425 err = sid_to_id(sid, B_TRUE, &id); 2426 } 2427 2428 if (err == 0) { 2429 rid = id; 2430 if (!cb->cb_sid2posix) { 2431 if (type == USTYPE_SMB_USR) { 2432 (void) idmap_getwinnamebyuid(rid, flag, 2433 &name, NULL); 2434 } else { 2435 (void) idmap_getwinnamebygid(rid, flag, 2436 &name, NULL); 2437 } 2438 if (name == NULL) 2439 name = sid; 2440 } 2441 } 2442 } 2443 2444 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2445 /* POSIX or -i */ 2446 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2447 type = USTYPE_PSX_GRP; 2448 if (!cb->cb_numname) { 2449 struct group *g; 2450 2451 if ((g = getgrgid(rid)) != NULL) 2452 name = g->gr_name; 2453 } 2454 } else { 2455 type = USTYPE_PSX_USR; 2456 if (!cb->cb_numname) { 2457 struct passwd *p; 2458 2459 if ((p = getpwuid(rid)) != NULL) 2460 name = p->pw_name; 2461 } 2462 } 2463 } 2464 2465 /* 2466 * Make sure that the type/name combination is unique when doing 2467 * SID to POSIX ID translation (hence changing the type from SMB to 2468 * POSIX). 2469 */ 2470 if (cb->cb_sid2posix && 2471 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2472 nomem(); 2473 2474 /* Calculate/update width of TYPE field */ 2475 typestr = us_type2str(type); 2476 typelen = strlen(gettext(typestr)); 2477 typeidx = us_field_index("type"); 2478 if (typelen > cb->cb_width[typeidx]) 2479 cb->cb_width[typeidx] = typelen; 2480 if (nvlist_add_uint32(props, "type", type) != 0) 2481 nomem(); 2482 2483 /* Calculate/update width of NAME field */ 2484 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2485 if (nvlist_add_uint64(props, "name", rid) != 0) 2486 nomem(); 2487 namelen = snprintf(NULL, 0, "%u", rid); 2488 } else { 2489 if (nvlist_add_string(props, "name", name) != 0) 2490 nomem(); 2491 namelen = strlen(name); 2492 } 2493 nameidx = us_field_index("name"); 2494 if (namelen > cb->cb_width[nameidx]) 2495 cb->cb_width[nameidx] = namelen; 2496 2497 /* 2498 * Check if this type/name combination is in the list and update it; 2499 * otherwise add new node to the list. 2500 */ 2501 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2502 uu_avl_insert(avl, node, idx); 2503 } else { 2504 nvlist_free(props); 2505 free(node); 2506 node = n; 2507 props = node->usn_nvl; 2508 } 2509 2510 /* Calculate/update width of USED/QUOTA fields */ 2511 if (cb->cb_nicenum) 2512 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2513 else 2514 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2515 sizelen = strlen(sizebuf); 2516 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2517 propname = "used"; 2518 if (!nvlist_exists(props, "quota")) 2519 (void) nvlist_add_uint64(props, "quota", 0); 2520 } else { 2521 propname = "quota"; 2522 if (!nvlist_exists(props, "used")) 2523 (void) nvlist_add_uint64(props, "used", 0); 2524 } 2525 sizeidx = us_field_index(propname); 2526 if (sizelen > cb->cb_width[sizeidx]) 2527 cb->cb_width[sizeidx] = sizelen; 2528 2529 if (nvlist_add_uint64(props, propname, space) != 0) 2530 nomem(); 2531 2532 return (0); 2533 } 2534 2535 static void 2536 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2537 size_t *width, us_node_t *node) 2538 { 2539 nvlist_t *nvl = node->usn_nvl; 2540 char valstr[MAXNAMELEN]; 2541 boolean_t first = B_TRUE; 2542 int cfield = 0; 2543 int field; 2544 uint32_t ustype; 2545 2546 /* Check type */ 2547 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2548 if (!(ustype & types)) 2549 return; 2550 2551 while ((field = fields[cfield]) != USFIELD_LAST) { 2552 nvpair_t *nvp = NULL; 2553 data_type_t type; 2554 uint32_t val32; 2555 uint64_t val64; 2556 char *strval = NULL; 2557 2558 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2559 if (strcmp(nvpair_name(nvp), 2560 us_field_names[field]) == 0) 2561 break; 2562 } 2563 2564 type = nvpair_type(nvp); 2565 switch (type) { 2566 case DATA_TYPE_UINT32: 2567 (void) nvpair_value_uint32(nvp, &val32); 2568 break; 2569 case DATA_TYPE_UINT64: 2570 (void) nvpair_value_uint64(nvp, &val64); 2571 break; 2572 case DATA_TYPE_STRING: 2573 (void) nvpair_value_string(nvp, &strval); 2574 break; 2575 default: 2576 (void) fprintf(stderr, "invalid data type\n"); 2577 } 2578 2579 switch (field) { 2580 case USFIELD_TYPE: 2581 strval = (char *)us_type2str(val32); 2582 break; 2583 case USFIELD_NAME: 2584 if (type == DATA_TYPE_UINT64) { 2585 (void) sprintf(valstr, "%llu", val64); 2586 strval = valstr; 2587 } 2588 break; 2589 case USFIELD_USED: 2590 case USFIELD_QUOTA: 2591 if (type == DATA_TYPE_UINT64) { 2592 if (parsable) { 2593 (void) sprintf(valstr, "%llu", val64); 2594 } else { 2595 zfs_nicenum(val64, valstr, 2596 sizeof (valstr)); 2597 } 2598 if (field == USFIELD_QUOTA && 2599 strcmp(valstr, "0") == 0) 2600 strval = "none"; 2601 else 2602 strval = valstr; 2603 } 2604 break; 2605 } 2606 2607 if (!first) { 2608 if (scripted) 2609 (void) printf("\t"); 2610 else 2611 (void) printf(" "); 2612 } 2613 if (scripted) 2614 (void) printf("%s", strval); 2615 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2616 (void) printf("%-*s", width[field], strval); 2617 else 2618 (void) printf("%*s", width[field], strval); 2619 2620 first = B_FALSE; 2621 cfield++; 2622 } 2623 2624 (void) printf("\n"); 2625 } 2626 2627 static void 2628 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2629 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2630 { 2631 us_node_t *node; 2632 const char *col; 2633 int cfield = 0; 2634 int field; 2635 2636 if (!scripted) { 2637 boolean_t first = B_TRUE; 2638 2639 while ((field = fields[cfield]) != USFIELD_LAST) { 2640 col = gettext(us_field_hdr[field]); 2641 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2642 (void) printf(first ? "%-*s" : " %-*s", 2643 width[field], col); 2644 } else { 2645 (void) printf(first ? "%*s" : " %*s", 2646 width[field], col); 2647 } 2648 first = B_FALSE; 2649 cfield++; 2650 } 2651 (void) printf("\n"); 2652 } 2653 2654 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2655 print_us_node(scripted, parsable, fields, types, width, node); 2656 if (rmnode) 2657 nvlist_free(node->usn_nvl); 2658 } 2659 } 2660 2661 static int 2662 zfs_do_userspace(int argc, char **argv) 2663 { 2664 zfs_handle_t *zhp; 2665 zfs_userquota_prop_t p; 2666 uu_avl_pool_t *avl_pool; 2667 uu_avl_t *avl_tree; 2668 uu_avl_walk_t *walk; 2669 char *delim; 2670 char deffields[] = "type,name,used,quota"; 2671 char *ofield = NULL; 2672 char *tfield = NULL; 2673 int cfield = 0; 2674 int fields[256]; 2675 int i; 2676 boolean_t scripted = B_FALSE; 2677 boolean_t prtnum = B_FALSE; 2678 boolean_t parsable = B_FALSE; 2679 boolean_t sid2posix = B_FALSE; 2680 int ret = 0; 2681 int c; 2682 zfs_sort_column_t *sortcol = NULL; 2683 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2684 us_cbdata_t cb; 2685 us_node_t *node; 2686 us_node_t *rmnode; 2687 uu_list_pool_t *listpool; 2688 uu_list_t *list; 2689 uu_avl_index_t idx = 0; 2690 uu_list_index_t idx2 = 0; 2691 2692 if (argc < 2) 2693 usage(B_FALSE); 2694 2695 if (strcmp(argv[0], "groupspace") == 0) 2696 /* Toggle default group types */ 2697 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2698 2699 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2700 switch (c) { 2701 case 'n': 2702 prtnum = B_TRUE; 2703 break; 2704 case 'H': 2705 scripted = B_TRUE; 2706 break; 2707 case 'p': 2708 parsable = B_TRUE; 2709 break; 2710 case 'o': 2711 ofield = optarg; 2712 break; 2713 case 's': 2714 case 'S': 2715 if (zfs_add_sort_column(&sortcol, optarg, 2716 c == 's' ? B_FALSE : B_TRUE) != 0) { 2717 (void) fprintf(stderr, 2718 gettext("invalid field '%s'\n"), optarg); 2719 usage(B_FALSE); 2720 } 2721 break; 2722 case 't': 2723 tfield = optarg; 2724 break; 2725 case 'i': 2726 sid2posix = B_TRUE; 2727 break; 2728 case ':': 2729 (void) fprintf(stderr, gettext("missing argument for " 2730 "'%c' option\n"), optopt); 2731 usage(B_FALSE); 2732 break; 2733 case '?': 2734 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2735 optopt); 2736 usage(B_FALSE); 2737 } 2738 } 2739 2740 argc -= optind; 2741 argv += optind; 2742 2743 if (argc < 1) { 2744 (void) fprintf(stderr, gettext("missing dataset name\n")); 2745 usage(B_FALSE); 2746 } 2747 if (argc > 1) { 2748 (void) fprintf(stderr, gettext("too many arguments\n")); 2749 usage(B_FALSE); 2750 } 2751 2752 /* Use default output fields if not specified using -o */ 2753 if (ofield == NULL) 2754 ofield = deffields; 2755 do { 2756 if ((delim = strchr(ofield, ',')) != NULL) 2757 *delim = '\0'; 2758 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2759 (void) fprintf(stderr, gettext("invalid type '%s' " 2760 "for -o option\n"), ofield); 2761 return (-1); 2762 } 2763 if (delim != NULL) 2764 ofield = delim + 1; 2765 } while (delim != NULL); 2766 fields[cfield] = USFIELD_LAST; 2767 2768 /* Override output types (-t option) */ 2769 if (tfield != NULL) { 2770 types = 0; 2771 2772 do { 2773 boolean_t found = B_FALSE; 2774 2775 if ((delim = strchr(tfield, ',')) != NULL) 2776 *delim = '\0'; 2777 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2778 i++) { 2779 if (strcmp(tfield, us_type_names[i]) == 0) { 2780 found = B_TRUE; 2781 types |= us_type_bits[i]; 2782 break; 2783 } 2784 } 2785 if (!found) { 2786 (void) fprintf(stderr, gettext("invalid type " 2787 "'%s' for -t option\n"), tfield); 2788 return (-1); 2789 } 2790 if (delim != NULL) 2791 tfield = delim + 1; 2792 } while (delim != NULL); 2793 } 2794 2795 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2796 return (1); 2797 2798 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2799 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2800 nomem(); 2801 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2802 nomem(); 2803 2804 /* Always add default sorting columns */ 2805 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2806 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2807 2808 cb.cb_sortcol = sortcol; 2809 cb.cb_numname = prtnum; 2810 cb.cb_nicenum = !parsable; 2811 cb.cb_avl_pool = avl_pool; 2812 cb.cb_avl = avl_tree; 2813 cb.cb_sid2posix = sid2posix; 2814 2815 for (i = 0; i < USFIELD_LAST; i++) 2816 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2817 2818 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2819 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2820 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2821 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2822 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2823 continue; 2824 cb.cb_prop = p; 2825 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2826 return (ret); 2827 } 2828 2829 /* Sort the list */ 2830 if ((node = uu_avl_first(avl_tree)) == NULL) 2831 return (0); 2832 2833 us_populated = B_TRUE; 2834 2835 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2836 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2837 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2838 uu_list_node_init(node, &node->usn_listnode, listpool); 2839 2840 while (node != NULL) { 2841 rmnode = node; 2842 node = uu_avl_next(avl_tree, node); 2843 uu_avl_remove(avl_tree, rmnode); 2844 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2845 uu_list_insert(list, rmnode, idx2); 2846 } 2847 2848 for (node = uu_list_first(list); node != NULL; 2849 node = uu_list_next(list, node)) { 2850 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2851 2852 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2853 uu_avl_insert(avl_tree, node, idx); 2854 } 2855 2856 uu_list_destroy(list); 2857 uu_list_pool_destroy(listpool); 2858 2859 /* Print and free node nvlist memory */ 2860 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2861 cb.cb_avl); 2862 2863 zfs_free_sort_columns(sortcol); 2864 2865 /* Clean up the AVL tree */ 2866 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2867 nomem(); 2868 2869 while ((node = uu_avl_walk_next(walk)) != NULL) { 2870 uu_avl_remove(cb.cb_avl, node); 2871 free(node); 2872 } 2873 2874 uu_avl_walk_end(walk); 2875 uu_avl_destroy(avl_tree); 2876 uu_avl_pool_destroy(avl_pool); 2877 2878 return (ret); 2879 } 2880 2881 /* 2882 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2883 * [-t type[,...]] [filesystem|volume|snapshot] ... 2884 * 2885 * -H Scripted mode; elide headers and separate columns by tabs. 2886 * -p Display values in parsable (literal) format. 2887 * -r Recurse over all children. 2888 * -d Limit recursion by depth. 2889 * -o Control which fields to display. 2890 * -s Specify sort columns, descending order. 2891 * -S Specify sort columns, ascending order. 2892 * -t Control which object types to display. 2893 * 2894 * When given no arguments, list all filesystems in the system. 2895 * Otherwise, list the specified datasets, optionally recursing down them if 2896 * '-r' is specified. 2897 */ 2898 typedef struct list_cbdata { 2899 boolean_t cb_first; 2900 boolean_t cb_literal; 2901 boolean_t cb_scripted; 2902 zprop_list_t *cb_proplist; 2903 } list_cbdata_t; 2904 2905 /* 2906 * Given a list of columns to display, output appropriate headers for each one. 2907 */ 2908 static void 2909 print_header(list_cbdata_t *cb) 2910 { 2911 zprop_list_t *pl = cb->cb_proplist; 2912 char headerbuf[ZFS_MAXPROPLEN]; 2913 const char *header; 2914 int i; 2915 boolean_t first = B_TRUE; 2916 boolean_t right_justify; 2917 2918 for (; pl != NULL; pl = pl->pl_next) { 2919 if (!first) { 2920 (void) printf(" "); 2921 } else { 2922 first = B_FALSE; 2923 } 2924 2925 right_justify = B_FALSE; 2926 if (pl->pl_prop != ZPROP_INVAL) { 2927 header = zfs_prop_column_name(pl->pl_prop); 2928 right_justify = zfs_prop_align_right(pl->pl_prop); 2929 } else { 2930 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2931 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2932 headerbuf[i] = '\0'; 2933 header = headerbuf; 2934 } 2935 2936 if (pl->pl_next == NULL && !right_justify) 2937 (void) printf("%s", header); 2938 else if (right_justify) 2939 (void) printf("%*s", pl->pl_width, header); 2940 else 2941 (void) printf("%-*s", pl->pl_width, header); 2942 } 2943 2944 (void) printf("\n"); 2945 } 2946 2947 /* 2948 * Given a dataset and a list of fields, print out all the properties according 2949 * to the described layout. 2950 */ 2951 static void 2952 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2953 { 2954 zprop_list_t *pl = cb->cb_proplist; 2955 boolean_t first = B_TRUE; 2956 char property[ZFS_MAXPROPLEN]; 2957 nvlist_t *userprops = zfs_get_user_props(zhp); 2958 nvlist_t *propval; 2959 char *propstr; 2960 boolean_t right_justify; 2961 2962 for (; pl != NULL; pl = pl->pl_next) { 2963 if (!first) { 2964 if (cb->cb_scripted) 2965 (void) printf("\t"); 2966 else 2967 (void) printf(" "); 2968 } else { 2969 first = B_FALSE; 2970 } 2971 2972 if (pl->pl_prop == ZFS_PROP_NAME) { 2973 (void) strlcpy(property, zfs_get_name(zhp), 2974 sizeof (property)); 2975 propstr = property; 2976 right_justify = zfs_prop_align_right(pl->pl_prop); 2977 } else if (pl->pl_prop != ZPROP_INVAL) { 2978 if (zfs_prop_get(zhp, pl->pl_prop, property, 2979 sizeof (property), NULL, NULL, 0, 2980 cb->cb_literal) != 0) 2981 propstr = "-"; 2982 else 2983 propstr = property; 2984 right_justify = zfs_prop_align_right(pl->pl_prop); 2985 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2986 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2987 property, sizeof (property), cb->cb_literal) != 0) 2988 propstr = "-"; 2989 else 2990 propstr = property; 2991 right_justify = B_TRUE; 2992 } else if (zfs_prop_written(pl->pl_user_prop)) { 2993 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2994 property, sizeof (property), cb->cb_literal) != 0) 2995 propstr = "-"; 2996 else 2997 propstr = property; 2998 right_justify = B_TRUE; 2999 } else { 3000 if (nvlist_lookup_nvlist(userprops, 3001 pl->pl_user_prop, &propval) != 0) 3002 propstr = "-"; 3003 else 3004 verify(nvlist_lookup_string(propval, 3005 ZPROP_VALUE, &propstr) == 0); 3006 right_justify = B_FALSE; 3007 } 3008 3009 /* 3010 * If this is being called in scripted mode, or if this is the 3011 * last column and it is left-justified, don't include a width 3012 * format specifier. 3013 */ 3014 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3015 (void) printf("%s", propstr); 3016 else if (right_justify) 3017 (void) printf("%*s", pl->pl_width, propstr); 3018 else 3019 (void) printf("%-*s", pl->pl_width, propstr); 3020 } 3021 3022 (void) printf("\n"); 3023 } 3024 3025 /* 3026 * Generic callback function to list a dataset or snapshot. 3027 */ 3028 static int 3029 list_callback(zfs_handle_t *zhp, void *data) 3030 { 3031 list_cbdata_t *cbp = data; 3032 3033 if (cbp->cb_first) { 3034 if (!cbp->cb_scripted) 3035 print_header(cbp); 3036 cbp->cb_first = B_FALSE; 3037 } 3038 3039 print_dataset(zhp, cbp); 3040 3041 return (0); 3042 } 3043 3044 static int 3045 zfs_do_list(int argc, char **argv) 3046 { 3047 int c; 3048 static char default_fields[] = 3049 "name,used,available,referenced,mountpoint"; 3050 int types = ZFS_TYPE_DATASET; 3051 boolean_t types_specified = B_FALSE; 3052 char *fields = NULL; 3053 list_cbdata_t cb = { 0 }; 3054 char *value; 3055 int limit = 0; 3056 int ret = 0; 3057 zfs_sort_column_t *sortcol = NULL; 3058 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3059 3060 /* check options */ 3061 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3062 switch (c) { 3063 case 'o': 3064 fields = optarg; 3065 break; 3066 case 'p': 3067 cb.cb_literal = B_TRUE; 3068 flags |= ZFS_ITER_LITERAL_PROPS; 3069 break; 3070 case 'd': 3071 limit = parse_depth(optarg, &flags); 3072 break; 3073 case 'r': 3074 flags |= ZFS_ITER_RECURSE; 3075 break; 3076 case 'H': 3077 cb.cb_scripted = B_TRUE; 3078 break; 3079 case 's': 3080 if (zfs_add_sort_column(&sortcol, optarg, 3081 B_FALSE) != 0) { 3082 (void) fprintf(stderr, 3083 gettext("invalid property '%s'\n"), optarg); 3084 usage(B_FALSE); 3085 } 3086 break; 3087 case 'S': 3088 if (zfs_add_sort_column(&sortcol, optarg, 3089 B_TRUE) != 0) { 3090 (void) fprintf(stderr, 3091 gettext("invalid property '%s'\n"), optarg); 3092 usage(B_FALSE); 3093 } 3094 break; 3095 case 't': 3096 types = 0; 3097 types_specified = B_TRUE; 3098 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3099 while (*optarg != '\0') { 3100 static char *type_subopts[] = { "filesystem", 3101 "volume", "snapshot", "snap", "bookmark", 3102 "all", NULL }; 3103 3104 switch (getsubopt(&optarg, type_subopts, 3105 &value)) { 3106 case 0: 3107 types |= ZFS_TYPE_FILESYSTEM; 3108 break; 3109 case 1: 3110 types |= ZFS_TYPE_VOLUME; 3111 break; 3112 case 2: 3113 case 3: 3114 types |= ZFS_TYPE_SNAPSHOT; 3115 break; 3116 case 4: 3117 types |= ZFS_TYPE_BOOKMARK; 3118 break; 3119 case 5: 3120 types = ZFS_TYPE_DATASET | 3121 ZFS_TYPE_BOOKMARK; 3122 break; 3123 default: 3124 (void) fprintf(stderr, 3125 gettext("invalid type '%s'\n"), 3126 value); 3127 usage(B_FALSE); 3128 } 3129 } 3130 break; 3131 case ':': 3132 (void) fprintf(stderr, gettext("missing argument for " 3133 "'%c' option\n"), optopt); 3134 usage(B_FALSE); 3135 break; 3136 case '?': 3137 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3138 optopt); 3139 usage(B_FALSE); 3140 } 3141 } 3142 3143 argc -= optind; 3144 argv += optind; 3145 3146 if (fields == NULL) 3147 fields = default_fields; 3148 3149 /* 3150 * If we are only going to list snapshot names and sort by name, 3151 * then we can use faster version. 3152 */ 3153 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3154 flags |= ZFS_ITER_SIMPLE; 3155 3156 /* 3157 * If "-o space" and no types were specified, don't display snapshots. 3158 */ 3159 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3160 types &= ~ZFS_TYPE_SNAPSHOT; 3161 3162 /* 3163 * If the user specifies '-o all', the zprop_get_list() doesn't 3164 * normally include the name of the dataset. For 'zfs list', we always 3165 * want this property to be first. 3166 */ 3167 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3168 != 0) 3169 usage(B_FALSE); 3170 3171 cb.cb_first = B_TRUE; 3172 3173 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3174 limit, list_callback, &cb); 3175 3176 zprop_free_list(cb.cb_proplist); 3177 zfs_free_sort_columns(sortcol); 3178 3179 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3180 (void) printf(gettext("no datasets available\n")); 3181 3182 return (ret); 3183 } 3184 3185 /* 3186 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3187 * zfs rename [-f] -p <fs | vol> <fs | vol> 3188 * zfs rename -r <snap> <snap> 3189 * 3190 * Renames the given dataset to another of the same type. 3191 * 3192 * The '-p' flag creates all the non-existing ancestors of the target first. 3193 */ 3194 /* ARGSUSED */ 3195 static int 3196 zfs_do_rename(int argc, char **argv) 3197 { 3198 zfs_handle_t *zhp; 3199 int c; 3200 int ret = 0; 3201 boolean_t recurse = B_FALSE; 3202 boolean_t parents = B_FALSE; 3203 boolean_t force_unmount = B_FALSE; 3204 3205 /* check options */ 3206 while ((c = getopt(argc, argv, "prf")) != -1) { 3207 switch (c) { 3208 case 'p': 3209 parents = B_TRUE; 3210 break; 3211 case 'r': 3212 recurse = B_TRUE; 3213 break; 3214 case 'f': 3215 force_unmount = B_TRUE; 3216 break; 3217 case '?': 3218 default: 3219 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3220 optopt); 3221 usage(B_FALSE); 3222 } 3223 } 3224 3225 argc -= optind; 3226 argv += optind; 3227 3228 /* check number of arguments */ 3229 if (argc < 1) { 3230 (void) fprintf(stderr, gettext("missing source dataset " 3231 "argument\n")); 3232 usage(B_FALSE); 3233 } 3234 if (argc < 2) { 3235 (void) fprintf(stderr, gettext("missing target dataset " 3236 "argument\n")); 3237 usage(B_FALSE); 3238 } 3239 if (argc > 2) { 3240 (void) fprintf(stderr, gettext("too many arguments\n")); 3241 usage(B_FALSE); 3242 } 3243 3244 if (recurse && parents) { 3245 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3246 "exclusive\n")); 3247 usage(B_FALSE); 3248 } 3249 3250 if (recurse && strchr(argv[0], '@') == 0) { 3251 (void) fprintf(stderr, gettext("source dataset for recursive " 3252 "rename must be a snapshot\n")); 3253 usage(B_FALSE); 3254 } 3255 3256 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3257 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3258 return (1); 3259 3260 /* If we were asked and the name looks good, try to create ancestors. */ 3261 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3262 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3263 zfs_close(zhp); 3264 return (1); 3265 } 3266 3267 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3268 3269 zfs_close(zhp); 3270 return (ret); 3271 } 3272 3273 /* 3274 * zfs promote <fs> 3275 * 3276 * Promotes the given clone fs to be the parent 3277 */ 3278 /* ARGSUSED */ 3279 static int 3280 zfs_do_promote(int argc, char **argv) 3281 { 3282 zfs_handle_t *zhp; 3283 int ret = 0; 3284 3285 /* check options */ 3286 if (argc > 1 && argv[1][0] == '-') { 3287 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3288 argv[1][1]); 3289 usage(B_FALSE); 3290 } 3291 3292 /* check number of arguments */ 3293 if (argc < 2) { 3294 (void) fprintf(stderr, gettext("missing clone filesystem" 3295 " argument\n")); 3296 usage(B_FALSE); 3297 } 3298 if (argc > 2) { 3299 (void) fprintf(stderr, gettext("too many arguments\n")); 3300 usage(B_FALSE); 3301 } 3302 3303 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3304 if (zhp == NULL) 3305 return (1); 3306 3307 ret = (zfs_promote(zhp) != 0); 3308 3309 3310 zfs_close(zhp); 3311 return (ret); 3312 } 3313 3314 /* 3315 * zfs rollback [-rRf] <snapshot> 3316 * 3317 * -r Delete any intervening snapshots before doing rollback 3318 * -R Delete any snapshots and their clones 3319 * -f ignored for backwards compatability 3320 * 3321 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3322 * since then and making it the active dataset. If more recent snapshots exist, 3323 * the command will complain unless the '-r' flag is given. 3324 */ 3325 typedef struct rollback_cbdata { 3326 uint64_t cb_create; 3327 boolean_t cb_first; 3328 int cb_doclones; 3329 char *cb_target; 3330 int cb_error; 3331 boolean_t cb_recurse; 3332 } rollback_cbdata_t; 3333 3334 static int 3335 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3336 { 3337 rollback_cbdata_t *cbp = data; 3338 3339 if (cbp->cb_first && cbp->cb_recurse) { 3340 (void) fprintf(stderr, gettext("cannot rollback to " 3341 "'%s': clones of previous snapshots exist\n"), 3342 cbp->cb_target); 3343 (void) fprintf(stderr, gettext("use '-R' to " 3344 "force deletion of the following clones and " 3345 "dependents:\n")); 3346 cbp->cb_first = 0; 3347 cbp->cb_error = 1; 3348 } 3349 3350 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3351 3352 zfs_close(zhp); 3353 return (0); 3354 } 3355 3356 /* 3357 * Report any snapshots more recent than the one specified. Used when '-r' is 3358 * not specified. We reuse this same callback for the snapshot dependents - if 3359 * 'cb_dependent' is set, then this is a dependent and we should report it 3360 * without checking the transaction group. 3361 */ 3362 static int 3363 rollback_check(zfs_handle_t *zhp, void *data) 3364 { 3365 rollback_cbdata_t *cbp = data; 3366 3367 if (cbp->cb_doclones) { 3368 zfs_close(zhp); 3369 return (0); 3370 } 3371 3372 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3373 if (cbp->cb_first && !cbp->cb_recurse) { 3374 (void) fprintf(stderr, gettext("cannot " 3375 "rollback to '%s': more recent snapshots " 3376 "or bookmarks exist\n"), 3377 cbp->cb_target); 3378 (void) fprintf(stderr, gettext("use '-r' to " 3379 "force deletion of the following " 3380 "snapshots and bookmarks:\n")); 3381 cbp->cb_first = 0; 3382 cbp->cb_error = 1; 3383 } 3384 3385 if (cbp->cb_recurse) { 3386 if (zfs_iter_dependents(zhp, B_TRUE, 3387 rollback_check_dependent, cbp) != 0) { 3388 zfs_close(zhp); 3389 return (-1); 3390 } 3391 } else { 3392 (void) fprintf(stderr, "%s\n", 3393 zfs_get_name(zhp)); 3394 } 3395 } 3396 zfs_close(zhp); 3397 return (0); 3398 } 3399 3400 static int 3401 zfs_do_rollback(int argc, char **argv) 3402 { 3403 int ret = 0; 3404 int c; 3405 boolean_t force = B_FALSE; 3406 rollback_cbdata_t cb = { 0 }; 3407 zfs_handle_t *zhp, *snap; 3408 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3409 char *delim; 3410 3411 /* check options */ 3412 while ((c = getopt(argc, argv, "rRf")) != -1) { 3413 switch (c) { 3414 case 'r': 3415 cb.cb_recurse = 1; 3416 break; 3417 case 'R': 3418 cb.cb_recurse = 1; 3419 cb.cb_doclones = 1; 3420 break; 3421 case 'f': 3422 force = B_TRUE; 3423 break; 3424 case '?': 3425 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3426 optopt); 3427 usage(B_FALSE); 3428 } 3429 } 3430 3431 argc -= optind; 3432 argv += optind; 3433 3434 /* check number of arguments */ 3435 if (argc < 1) { 3436 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3437 usage(B_FALSE); 3438 } 3439 if (argc > 1) { 3440 (void) fprintf(stderr, gettext("too many arguments\n")); 3441 usage(B_FALSE); 3442 } 3443 3444 /* open the snapshot */ 3445 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3446 return (1); 3447 3448 /* open the parent dataset */ 3449 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3450 verify((delim = strrchr(parentname, '@')) != NULL); 3451 *delim = '\0'; 3452 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3453 zfs_close(snap); 3454 return (1); 3455 } 3456 3457 /* 3458 * Check for more recent snapshots and/or clones based on the presence 3459 * of '-r' and '-R'. 3460 */ 3461 cb.cb_target = argv[0]; 3462 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3463 cb.cb_first = B_TRUE; 3464 cb.cb_error = 0; 3465 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3466 goto out; 3467 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3468 goto out; 3469 3470 if ((ret = cb.cb_error) != 0) 3471 goto out; 3472 3473 /* 3474 * Rollback parent to the given snapshot. 3475 */ 3476 ret = zfs_rollback(zhp, snap, force); 3477 3478 out: 3479 zfs_close(snap); 3480 zfs_close(zhp); 3481 3482 if (ret == 0) 3483 return (0); 3484 else 3485 return (1); 3486 } 3487 3488 /* 3489 * zfs set property=value ... { fs | snap | vol } ... 3490 * 3491 * Sets the given properties for all datasets specified on the command line. 3492 */ 3493 3494 static int 3495 set_callback(zfs_handle_t *zhp, void *data) 3496 { 3497 nvlist_t *props = data; 3498 3499 if (zfs_prop_set_list(zhp, props) != 0) { 3500 switch (libzfs_errno(g_zfs)) { 3501 case EZFS_MOUNTFAILED: 3502 (void) fprintf(stderr, gettext("property may be set " 3503 "but unable to remount filesystem\n")); 3504 break; 3505 case EZFS_SHARENFSFAILED: 3506 (void) fprintf(stderr, gettext("property may be set " 3507 "but unable to reshare filesystem\n")); 3508 break; 3509 } 3510 return (1); 3511 } 3512 return (0); 3513 } 3514 3515 static int 3516 zfs_do_set(int argc, char **argv) 3517 { 3518 nvlist_t *props = NULL; 3519 int ds_start = -1; /* argv idx of first dataset arg */ 3520 int ret = 0; 3521 3522 /* check for options */ 3523 if (argc > 1 && argv[1][0] == '-') { 3524 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3525 argv[1][1]); 3526 usage(B_FALSE); 3527 } 3528 3529 /* check number of arguments */ 3530 if (argc < 2) { 3531 (void) fprintf(stderr, gettext("missing arguments\n")); 3532 usage(B_FALSE); 3533 } 3534 if (argc < 3) { 3535 if (strchr(argv[1], '=') == NULL) { 3536 (void) fprintf(stderr, gettext("missing property=value " 3537 "argument(s)\n")); 3538 } else { 3539 (void) fprintf(stderr, gettext("missing dataset " 3540 "name(s)\n")); 3541 } 3542 usage(B_FALSE); 3543 } 3544 3545 /* validate argument order: prop=val args followed by dataset args */ 3546 for (int i = 1; i < argc; i++) { 3547 if (strchr(argv[i], '=') != NULL) { 3548 if (ds_start > 0) { 3549 /* out-of-order prop=val argument */ 3550 (void) fprintf(stderr, gettext("invalid " 3551 "argument order\n"), i); 3552 usage(B_FALSE); 3553 } 3554 } else if (ds_start < 0) { 3555 ds_start = i; 3556 } 3557 } 3558 if (ds_start < 0) { 3559 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3560 usage(B_FALSE); 3561 } 3562 3563 /* Populate a list of property settings */ 3564 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3565 nomem(); 3566 for (int i = 1; i < ds_start; i++) { 3567 if ((ret = parseprop(props, argv[i])) != 0) 3568 goto error; 3569 } 3570 3571 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3572 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3573 3574 error: 3575 nvlist_free(props); 3576 return (ret); 3577 } 3578 3579 typedef struct snap_cbdata { 3580 nvlist_t *sd_nvl; 3581 boolean_t sd_recursive; 3582 const char *sd_snapname; 3583 } snap_cbdata_t; 3584 3585 static int 3586 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3587 { 3588 snap_cbdata_t *sd = arg; 3589 char *name; 3590 int rv = 0; 3591 int error; 3592 3593 if (sd->sd_recursive && 3594 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3595 zfs_close(zhp); 3596 return (0); 3597 } 3598 3599 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3600 if (error == -1) 3601 nomem(); 3602 fnvlist_add_boolean(sd->sd_nvl, name); 3603 free(name); 3604 3605 if (sd->sd_recursive) 3606 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3607 zfs_close(zhp); 3608 return (rv); 3609 } 3610 3611 /* 3612 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3613 * 3614 * Creates a snapshot with the given name. While functionally equivalent to 3615 * 'zfs create', it is a separate command to differentiate intent. 3616 */ 3617 static int 3618 zfs_do_snapshot(int argc, char **argv) 3619 { 3620 int ret = 0; 3621 char c; 3622 nvlist_t *props; 3623 snap_cbdata_t sd = { 0 }; 3624 boolean_t multiple_snaps = B_FALSE; 3625 3626 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3627 nomem(); 3628 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3629 nomem(); 3630 3631 /* check options */ 3632 while ((c = getopt(argc, argv, "ro:")) != -1) { 3633 switch (c) { 3634 case 'o': 3635 if (parseprop(props, optarg) != 0) 3636 return (1); 3637 break; 3638 case 'r': 3639 sd.sd_recursive = B_TRUE; 3640 multiple_snaps = B_TRUE; 3641 break; 3642 case '?': 3643 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3644 optopt); 3645 goto usage; 3646 } 3647 } 3648 3649 argc -= optind; 3650 argv += optind; 3651 3652 /* check number of arguments */ 3653 if (argc < 1) { 3654 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3655 goto usage; 3656 } 3657 3658 if (argc > 1) 3659 multiple_snaps = B_TRUE; 3660 for (; argc > 0; argc--, argv++) { 3661 char *atp; 3662 zfs_handle_t *zhp; 3663 3664 atp = strchr(argv[0], '@'); 3665 if (atp == NULL) 3666 goto usage; 3667 *atp = '\0'; 3668 sd.sd_snapname = atp + 1; 3669 zhp = zfs_open(g_zfs, argv[0], 3670 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3671 if (zhp == NULL) 3672 goto usage; 3673 if (zfs_snapshot_cb(zhp, &sd) != 0) 3674 goto usage; 3675 } 3676 3677 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3678 nvlist_free(sd.sd_nvl); 3679 nvlist_free(props); 3680 if (ret != 0 && multiple_snaps) 3681 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3682 return (ret != 0); 3683 3684 usage: 3685 nvlist_free(sd.sd_nvl); 3686 nvlist_free(props); 3687 usage(B_FALSE); 3688 return (-1); 3689 } 3690 3691 /* 3692 * Send a backup stream to stdout. 3693 */ 3694 static int 3695 zfs_do_send(int argc, char **argv) 3696 { 3697 char *fromname = NULL; 3698 char *toname = NULL; 3699 char *resume_token = NULL; 3700 char *cp; 3701 zfs_handle_t *zhp; 3702 sendflags_t flags = { 0 }; 3703 int c, err; 3704 nvlist_t *dbgnv = NULL; 3705 boolean_t extraverbose = B_FALSE; 3706 3707 /* check options */ 3708 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3709 switch (c) { 3710 case 'i': 3711 if (fromname) 3712 usage(B_FALSE); 3713 fromname = optarg; 3714 break; 3715 case 'I': 3716 if (fromname) 3717 usage(B_FALSE); 3718 fromname = optarg; 3719 flags.doall = B_TRUE; 3720 break; 3721 case 'R': 3722 flags.replicate = B_TRUE; 3723 break; 3724 case 'p': 3725 flags.props = B_TRUE; 3726 break; 3727 case 'P': 3728 flags.parsable = B_TRUE; 3729 flags.verbose = B_TRUE; 3730 break; 3731 case 'v': 3732 if (flags.verbose) 3733 extraverbose = B_TRUE; 3734 flags.verbose = B_TRUE; 3735 flags.progress = B_TRUE; 3736 break; 3737 case 'D': 3738 flags.dedup = B_TRUE; 3739 break; 3740 case 'n': 3741 flags.dryrun = B_TRUE; 3742 break; 3743 case 'L': 3744 flags.largeblock = B_TRUE; 3745 break; 3746 case 'e': 3747 flags.embed_data = B_TRUE; 3748 break; 3749 case 't': 3750 resume_token = optarg; 3751 break; 3752 case ':': 3753 (void) fprintf(stderr, gettext("missing argument for " 3754 "'%c' option\n"), optopt); 3755 usage(B_FALSE); 3756 break; 3757 case '?': 3758 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3759 optopt); 3760 usage(B_FALSE); 3761 } 3762 } 3763 3764 argc -= optind; 3765 argv += optind; 3766 3767 if (resume_token != NULL) { 3768 if (fromname != NULL || flags.replicate || flags.props || 3769 flags.dedup) { 3770 (void) fprintf(stderr, 3771 gettext("invalid flags combined with -t\n")); 3772 usage(B_FALSE); 3773 } 3774 if (argc != 0) { 3775 (void) fprintf(stderr, gettext("no additional " 3776 "arguments are permitted with -t\n")); 3777 usage(B_FALSE); 3778 } 3779 } else { 3780 if (argc < 1) { 3781 (void) fprintf(stderr, 3782 gettext("missing snapshot argument\n")); 3783 usage(B_FALSE); 3784 } 3785 if (argc > 1) { 3786 (void) fprintf(stderr, gettext("too many arguments\n")); 3787 usage(B_FALSE); 3788 } 3789 } 3790 3791 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3792 (void) fprintf(stderr, 3793 gettext("Error: Stream can not be written to a terminal.\n" 3794 "You must redirect standard output.\n")); 3795 return (1); 3796 } 3797 3798 if (resume_token != NULL) { 3799 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3800 resume_token)); 3801 } 3802 3803 /* 3804 * Special case sending a filesystem, or from a bookmark. 3805 */ 3806 if (strchr(argv[0], '@') == NULL || 3807 (fromname && strchr(fromname, '#') != NULL)) { 3808 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3809 enum lzc_send_flags lzc_flags = 0; 3810 3811 if (flags.replicate || flags.doall || flags.props || 3812 flags.dedup || flags.dryrun || flags.verbose || 3813 flags.progress) { 3814 (void) fprintf(stderr, 3815 gettext("Error: " 3816 "Unsupported flag with filesystem or bookmark.\n")); 3817 return (1); 3818 } 3819 3820 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3821 if (zhp == NULL) 3822 return (1); 3823 3824 if (flags.largeblock) 3825 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3826 if (flags.embed_data) 3827 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3828 3829 if (fromname != NULL && 3830 (fromname[0] == '#' || fromname[0] == '@')) { 3831 /* 3832 * Incremental source name begins with # or @. 3833 * Default to same fs as target. 3834 */ 3835 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3836 cp = strchr(frombuf, '@'); 3837 if (cp != NULL) 3838 *cp = '\0'; 3839 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3840 fromname = frombuf; 3841 } 3842 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3843 zfs_close(zhp); 3844 return (err != 0); 3845 } 3846 3847 cp = strchr(argv[0], '@'); 3848 *cp = '\0'; 3849 toname = cp + 1; 3850 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3851 if (zhp == NULL) 3852 return (1); 3853 3854 /* 3855 * If they specified the full path to the snapshot, chop off 3856 * everything except the short name of the snapshot, but special 3857 * case if they specify the origin. 3858 */ 3859 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3860 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3861 zprop_source_t src; 3862 3863 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3864 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3865 3866 if (strcmp(origin, fromname) == 0) { 3867 fromname = NULL; 3868 flags.fromorigin = B_TRUE; 3869 } else { 3870 *cp = '\0'; 3871 if (cp != fromname && strcmp(argv[0], fromname)) { 3872 (void) fprintf(stderr, 3873 gettext("incremental source must be " 3874 "in same filesystem\n")); 3875 usage(B_FALSE); 3876 } 3877 fromname = cp + 1; 3878 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3879 (void) fprintf(stderr, 3880 gettext("invalid incremental source\n")); 3881 usage(B_FALSE); 3882 } 3883 } 3884 } 3885 3886 if (flags.replicate && fromname == NULL) 3887 flags.doall = B_TRUE; 3888 3889 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3890 extraverbose ? &dbgnv : NULL); 3891 3892 if (extraverbose && dbgnv != NULL) { 3893 /* 3894 * dump_nvlist prints to stdout, but that's been 3895 * redirected to a file. Make it print to stderr 3896 * instead. 3897 */ 3898 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3899 dump_nvlist(dbgnv, 0); 3900 nvlist_free(dbgnv); 3901 } 3902 zfs_close(zhp); 3903 3904 return (err != 0); 3905 } 3906 3907 /* 3908 * Restore a backup stream from stdin. 3909 */ 3910 static int 3911 zfs_do_receive(int argc, char **argv) 3912 { 3913 int c, err = 0; 3914 recvflags_t flags = { 0 }; 3915 boolean_t abort_resumable = B_FALSE; 3916 3917 nvlist_t *props; 3918 nvpair_t *nvp = NULL; 3919 3920 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3921 nomem(); 3922 3923 /* check options */ 3924 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3925 switch (c) { 3926 case 'o': 3927 if (parseprop(props, optarg) != 0) 3928 return (1); 3929 break; 3930 case 'd': 3931 flags.isprefix = B_TRUE; 3932 break; 3933 case 'e': 3934 flags.isprefix = B_TRUE; 3935 flags.istail = B_TRUE; 3936 break; 3937 case 'n': 3938 flags.dryrun = B_TRUE; 3939 break; 3940 case 'u': 3941 flags.nomount = B_TRUE; 3942 break; 3943 case 'v': 3944 flags.verbose = B_TRUE; 3945 break; 3946 case 's': 3947 flags.resumable = B_TRUE; 3948 break; 3949 case 'F': 3950 flags.force = B_TRUE; 3951 break; 3952 case 'A': 3953 abort_resumable = B_TRUE; 3954 break; 3955 case ':': 3956 (void) fprintf(stderr, gettext("missing argument for " 3957 "'%c' option\n"), optopt); 3958 usage(B_FALSE); 3959 break; 3960 case '?': 3961 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3962 optopt); 3963 usage(B_FALSE); 3964 } 3965 } 3966 3967 argc -= optind; 3968 argv += optind; 3969 3970 /* check number of arguments */ 3971 if (argc < 1) { 3972 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3973 usage(B_FALSE); 3974 } 3975 if (argc > 1) { 3976 (void) fprintf(stderr, gettext("too many arguments\n")); 3977 usage(B_FALSE); 3978 } 3979 3980 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3981 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3982 (void) fprintf(stderr, gettext("invalid option")); 3983 usage(B_FALSE); 3984 } 3985 } 3986 3987 if (abort_resumable) { 3988 if (flags.isprefix || flags.istail || flags.dryrun || 3989 flags.resumable || flags.nomount) { 3990 (void) fprintf(stderr, gettext("invalid option")); 3991 usage(B_FALSE); 3992 } 3993 3994 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 3995 (void) snprintf(namebuf, sizeof (namebuf), 3996 "%s/%%recv", argv[0]); 3997 3998 if (zfs_dataset_exists(g_zfs, namebuf, 3999 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4000 zfs_handle_t *zhp = zfs_open(g_zfs, 4001 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4002 if (zhp == NULL) 4003 return (1); 4004 err = zfs_destroy(zhp, B_FALSE); 4005 } else { 4006 zfs_handle_t *zhp = zfs_open(g_zfs, 4007 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4008 if (zhp == NULL) 4009 usage(B_FALSE); 4010 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4011 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4012 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4013 (void) fprintf(stderr, 4014 gettext("'%s' does not have any " 4015 "resumable receive state to abort\n"), 4016 argv[0]); 4017 return (1); 4018 } 4019 err = zfs_destroy(zhp, B_FALSE); 4020 } 4021 4022 return (err != 0); 4023 } 4024 4025 if (isatty(STDIN_FILENO)) { 4026 (void) fprintf(stderr, 4027 gettext("Error: Backup stream can not be read " 4028 "from a terminal.\n" 4029 "You must redirect standard input.\n")); 4030 return (1); 4031 } 4032 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4033 4034 return (err != 0); 4035 } 4036 4037 /* 4038 * allow/unallow stuff 4039 */ 4040 /* copied from zfs/sys/dsl_deleg.h */ 4041 #define ZFS_DELEG_PERM_CREATE "create" 4042 #define ZFS_DELEG_PERM_DESTROY "destroy" 4043 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4044 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4045 #define ZFS_DELEG_PERM_CLONE "clone" 4046 #define ZFS_DELEG_PERM_PROMOTE "promote" 4047 #define ZFS_DELEG_PERM_RENAME "rename" 4048 #define ZFS_DELEG_PERM_MOUNT "mount" 4049 #define ZFS_DELEG_PERM_SHARE "share" 4050 #define ZFS_DELEG_PERM_SEND "send" 4051 #define ZFS_DELEG_PERM_RECEIVE "receive" 4052 #define ZFS_DELEG_PERM_ALLOW "allow" 4053 #define ZFS_DELEG_PERM_USERPROP "userprop" 4054 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4055 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4056 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4057 #define ZFS_DELEG_PERM_USERUSED "userused" 4058 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4059 #define ZFS_DELEG_PERM_HOLD "hold" 4060 #define ZFS_DELEG_PERM_RELEASE "release" 4061 #define ZFS_DELEG_PERM_DIFF "diff" 4062 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4063 4064 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4065 4066 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4067 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4068 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4069 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4070 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4071 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4072 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4073 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4074 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4075 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4076 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4077 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4078 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4079 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4080 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4081 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4082 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4083 4084 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4085 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4086 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4087 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4088 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4089 { NULL, ZFS_DELEG_NOTE_NONE } 4090 }; 4091 4092 /* permission structure */ 4093 typedef struct deleg_perm { 4094 zfs_deleg_who_type_t dp_who_type; 4095 const char *dp_name; 4096 boolean_t dp_local; 4097 boolean_t dp_descend; 4098 } deleg_perm_t; 4099 4100 /* */ 4101 typedef struct deleg_perm_node { 4102 deleg_perm_t dpn_perm; 4103 4104 uu_avl_node_t dpn_avl_node; 4105 } deleg_perm_node_t; 4106 4107 typedef struct fs_perm fs_perm_t; 4108 4109 /* permissions set */ 4110 typedef struct who_perm { 4111 zfs_deleg_who_type_t who_type; 4112 const char *who_name; /* id */ 4113 char who_ug_name[256]; /* user/group name */ 4114 fs_perm_t *who_fsperm; /* uplink */ 4115 4116 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4117 } who_perm_t; 4118 4119 /* */ 4120 typedef struct who_perm_node { 4121 who_perm_t who_perm; 4122 uu_avl_node_t who_avl_node; 4123 } who_perm_node_t; 4124 4125 typedef struct fs_perm_set fs_perm_set_t; 4126 /* fs permissions */ 4127 struct fs_perm { 4128 const char *fsp_name; 4129 4130 uu_avl_t *fsp_sc_avl; /* sets,create */ 4131 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4132 4133 fs_perm_set_t *fsp_set; /* uplink */ 4134 }; 4135 4136 /* */ 4137 typedef struct fs_perm_node { 4138 fs_perm_t fspn_fsperm; 4139 uu_avl_t *fspn_avl; 4140 4141 uu_list_node_t fspn_list_node; 4142 } fs_perm_node_t; 4143 4144 /* top level structure */ 4145 struct fs_perm_set { 4146 uu_list_pool_t *fsps_list_pool; 4147 uu_list_t *fsps_list; /* list of fs_perms */ 4148 4149 uu_avl_pool_t *fsps_named_set_avl_pool; 4150 uu_avl_pool_t *fsps_who_perm_avl_pool; 4151 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4152 }; 4153 4154 static inline const char * 4155 deleg_perm_type(zfs_deleg_note_t note) 4156 { 4157 /* subcommands */ 4158 switch (note) { 4159 /* SUBCOMMANDS */ 4160 /* OTHER */ 4161 case ZFS_DELEG_NOTE_GROUPQUOTA: 4162 case ZFS_DELEG_NOTE_GROUPUSED: 4163 case ZFS_DELEG_NOTE_USERPROP: 4164 case ZFS_DELEG_NOTE_USERQUOTA: 4165 case ZFS_DELEG_NOTE_USERUSED: 4166 /* other */ 4167 return (gettext("other")); 4168 default: 4169 return (gettext("subcommand")); 4170 } 4171 } 4172 4173 static int 4174 who_type2weight(zfs_deleg_who_type_t who_type) 4175 { 4176 int res; 4177 switch (who_type) { 4178 case ZFS_DELEG_NAMED_SET_SETS: 4179 case ZFS_DELEG_NAMED_SET: 4180 res = 0; 4181 break; 4182 case ZFS_DELEG_CREATE_SETS: 4183 case ZFS_DELEG_CREATE: 4184 res = 1; 4185 break; 4186 case ZFS_DELEG_USER_SETS: 4187 case ZFS_DELEG_USER: 4188 res = 2; 4189 break; 4190 case ZFS_DELEG_GROUP_SETS: 4191 case ZFS_DELEG_GROUP: 4192 res = 3; 4193 break; 4194 case ZFS_DELEG_EVERYONE_SETS: 4195 case ZFS_DELEG_EVERYONE: 4196 res = 4; 4197 break; 4198 default: 4199 res = -1; 4200 } 4201 4202 return (res); 4203 } 4204 4205 /* ARGSUSED */ 4206 static int 4207 who_perm_compare(const void *larg, const void *rarg, void *unused) 4208 { 4209 const who_perm_node_t *l = larg; 4210 const who_perm_node_t *r = rarg; 4211 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4212 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4213 int lweight = who_type2weight(ltype); 4214 int rweight = who_type2weight(rtype); 4215 int res = lweight - rweight; 4216 if (res == 0) 4217 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4218 ZFS_MAX_DELEG_NAME-1); 4219 4220 if (res == 0) 4221 return (0); 4222 if (res > 0) 4223 return (1); 4224 else 4225 return (-1); 4226 } 4227 4228 /* ARGSUSED */ 4229 static int 4230 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4231 { 4232 const deleg_perm_node_t *l = larg; 4233 const deleg_perm_node_t *r = rarg; 4234 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4235 ZFS_MAX_DELEG_NAME-1); 4236 4237 if (res == 0) 4238 return (0); 4239 4240 if (res > 0) 4241 return (1); 4242 else 4243 return (-1); 4244 } 4245 4246 static inline void 4247 fs_perm_set_init(fs_perm_set_t *fspset) 4248 { 4249 bzero(fspset, sizeof (fs_perm_set_t)); 4250 4251 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4252 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4253 NULL, UU_DEFAULT)) == NULL) 4254 nomem(); 4255 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4256 UU_DEFAULT)) == NULL) 4257 nomem(); 4258 4259 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4260 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4261 who_perm_node_t, who_avl_node), who_perm_compare, 4262 UU_DEFAULT)) == NULL) 4263 nomem(); 4264 4265 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4266 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4267 who_perm_node_t, who_avl_node), who_perm_compare, 4268 UU_DEFAULT)) == NULL) 4269 nomem(); 4270 4271 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4272 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4273 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4274 == NULL) 4275 nomem(); 4276 } 4277 4278 static inline void fs_perm_fini(fs_perm_t *); 4279 static inline void who_perm_fini(who_perm_t *); 4280 4281 static inline void 4282 fs_perm_set_fini(fs_perm_set_t *fspset) 4283 { 4284 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4285 4286 while (node != NULL) { 4287 fs_perm_node_t *next_node = 4288 uu_list_next(fspset->fsps_list, node); 4289 fs_perm_t *fsperm = &node->fspn_fsperm; 4290 fs_perm_fini(fsperm); 4291 uu_list_remove(fspset->fsps_list, node); 4292 free(node); 4293 node = next_node; 4294 } 4295 4296 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4297 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4298 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4299 } 4300 4301 static inline void 4302 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4303 const char *name) 4304 { 4305 deleg_perm->dp_who_type = type; 4306 deleg_perm->dp_name = name; 4307 } 4308 4309 static inline void 4310 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4311 zfs_deleg_who_type_t type, const char *name) 4312 { 4313 uu_avl_pool_t *pool; 4314 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4315 4316 bzero(who_perm, sizeof (who_perm_t)); 4317 4318 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4319 UU_DEFAULT)) == NULL) 4320 nomem(); 4321 4322 who_perm->who_type = type; 4323 who_perm->who_name = name; 4324 who_perm->who_fsperm = fsperm; 4325 } 4326 4327 static inline void 4328 who_perm_fini(who_perm_t *who_perm) 4329 { 4330 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4331 4332 while (node != NULL) { 4333 deleg_perm_node_t *next_node = 4334 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4335 4336 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4337 free(node); 4338 node = next_node; 4339 } 4340 4341 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4342 } 4343 4344 static inline void 4345 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4346 { 4347 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4348 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4349 4350 bzero(fsperm, sizeof (fs_perm_t)); 4351 4352 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4353 == NULL) 4354 nomem(); 4355 4356 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4357 == NULL) 4358 nomem(); 4359 4360 fsperm->fsp_set = fspset; 4361 fsperm->fsp_name = fsname; 4362 } 4363 4364 static inline void 4365 fs_perm_fini(fs_perm_t *fsperm) 4366 { 4367 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4368 while (node != NULL) { 4369 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4370 node); 4371 who_perm_t *who_perm = &node->who_perm; 4372 who_perm_fini(who_perm); 4373 uu_avl_remove(fsperm->fsp_sc_avl, node); 4374 free(node); 4375 node = next_node; 4376 } 4377 4378 node = uu_avl_first(fsperm->fsp_uge_avl); 4379 while (node != NULL) { 4380 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4381 node); 4382 who_perm_t *who_perm = &node->who_perm; 4383 who_perm_fini(who_perm); 4384 uu_avl_remove(fsperm->fsp_uge_avl, node); 4385 free(node); 4386 node = next_node; 4387 } 4388 4389 uu_avl_destroy(fsperm->fsp_sc_avl); 4390 uu_avl_destroy(fsperm->fsp_uge_avl); 4391 } 4392 4393 static void 4394 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4395 zfs_deleg_who_type_t who_type, const char *name, char locality) 4396 { 4397 uu_avl_index_t idx = 0; 4398 4399 deleg_perm_node_t *found_node = NULL; 4400 deleg_perm_t *deleg_perm = &node->dpn_perm; 4401 4402 deleg_perm_init(deleg_perm, who_type, name); 4403 4404 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4405 == NULL) 4406 uu_avl_insert(avl, node, idx); 4407 else { 4408 node = found_node; 4409 deleg_perm = &node->dpn_perm; 4410 } 4411 4412 4413 switch (locality) { 4414 case ZFS_DELEG_LOCAL: 4415 deleg_perm->dp_local = B_TRUE; 4416 break; 4417 case ZFS_DELEG_DESCENDENT: 4418 deleg_perm->dp_descend = B_TRUE; 4419 break; 4420 case ZFS_DELEG_NA: 4421 break; 4422 default: 4423 assert(B_FALSE); /* invalid locality */ 4424 } 4425 } 4426 4427 static inline int 4428 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4429 { 4430 nvpair_t *nvp = NULL; 4431 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4432 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4433 zfs_deleg_who_type_t who_type = who_perm->who_type; 4434 4435 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4436 const char *name = nvpair_name(nvp); 4437 data_type_t type = nvpair_type(nvp); 4438 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4439 deleg_perm_node_t *node = 4440 safe_malloc(sizeof (deleg_perm_node_t)); 4441 4442 assert(type == DATA_TYPE_BOOLEAN); 4443 4444 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4445 set_deleg_perm_node(avl, node, who_type, name, locality); 4446 } 4447 4448 return (0); 4449 } 4450 4451 static inline int 4452 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4453 { 4454 nvpair_t *nvp = NULL; 4455 fs_perm_set_t *fspset = fsperm->fsp_set; 4456 4457 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4458 nvlist_t *nvl2 = NULL; 4459 const char *name = nvpair_name(nvp); 4460 uu_avl_t *avl = NULL; 4461 uu_avl_pool_t *avl_pool = NULL; 4462 zfs_deleg_who_type_t perm_type = name[0]; 4463 char perm_locality = name[1]; 4464 const char *perm_name = name + 3; 4465 boolean_t is_set = B_TRUE; 4466 who_perm_t *who_perm = NULL; 4467 4468 assert('$' == name[2]); 4469 4470 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4471 return (-1); 4472 4473 switch (perm_type) { 4474 case ZFS_DELEG_CREATE: 4475 case ZFS_DELEG_CREATE_SETS: 4476 case ZFS_DELEG_NAMED_SET: 4477 case ZFS_DELEG_NAMED_SET_SETS: 4478 avl_pool = fspset->fsps_named_set_avl_pool; 4479 avl = fsperm->fsp_sc_avl; 4480 break; 4481 case ZFS_DELEG_USER: 4482 case ZFS_DELEG_USER_SETS: 4483 case ZFS_DELEG_GROUP: 4484 case ZFS_DELEG_GROUP_SETS: 4485 case ZFS_DELEG_EVERYONE: 4486 case ZFS_DELEG_EVERYONE_SETS: 4487 avl_pool = fspset->fsps_who_perm_avl_pool; 4488 avl = fsperm->fsp_uge_avl; 4489 break; 4490 4491 default: 4492 assert(!"unhandled zfs_deleg_who_type_t"); 4493 } 4494 4495 if (is_set) { 4496 who_perm_node_t *found_node = NULL; 4497 who_perm_node_t *node = safe_malloc( 4498 sizeof (who_perm_node_t)); 4499 who_perm = &node->who_perm; 4500 uu_avl_index_t idx = 0; 4501 4502 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4503 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4504 4505 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4506 == NULL) { 4507 if (avl == fsperm->fsp_uge_avl) { 4508 uid_t rid = 0; 4509 struct passwd *p = NULL; 4510 struct group *g = NULL; 4511 const char *nice_name = NULL; 4512 4513 switch (perm_type) { 4514 case ZFS_DELEG_USER_SETS: 4515 case ZFS_DELEG_USER: 4516 rid = atoi(perm_name); 4517 p = getpwuid(rid); 4518 if (p) 4519 nice_name = p->pw_name; 4520 break; 4521 case ZFS_DELEG_GROUP_SETS: 4522 case ZFS_DELEG_GROUP: 4523 rid = atoi(perm_name); 4524 g = getgrgid(rid); 4525 if (g) 4526 nice_name = g->gr_name; 4527 break; 4528 4529 default: 4530 break; 4531 } 4532 4533 if (nice_name != NULL) 4534 (void) strlcpy( 4535 node->who_perm.who_ug_name, 4536 nice_name, 256); 4537 } 4538 4539 uu_avl_insert(avl, node, idx); 4540 } else { 4541 node = found_node; 4542 who_perm = &node->who_perm; 4543 } 4544 } 4545 4546 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4547 } 4548 4549 return (0); 4550 } 4551 4552 static inline int 4553 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4554 { 4555 nvpair_t *nvp = NULL; 4556 uu_avl_index_t idx = 0; 4557 4558 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4559 nvlist_t *nvl2 = NULL; 4560 const char *fsname = nvpair_name(nvp); 4561 data_type_t type = nvpair_type(nvp); 4562 fs_perm_t *fsperm = NULL; 4563 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4564 if (node == NULL) 4565 nomem(); 4566 4567 fsperm = &node->fspn_fsperm; 4568 4569 assert(DATA_TYPE_NVLIST == type); 4570 4571 uu_list_node_init(node, &node->fspn_list_node, 4572 fspset->fsps_list_pool); 4573 4574 idx = uu_list_numnodes(fspset->fsps_list); 4575 fs_perm_init(fsperm, fspset, fsname); 4576 4577 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4578 return (-1); 4579 4580 (void) parse_fs_perm(fsperm, nvl2); 4581 4582 uu_list_insert(fspset->fsps_list, node, idx); 4583 } 4584 4585 return (0); 4586 } 4587 4588 static inline const char * 4589 deleg_perm_comment(zfs_deleg_note_t note) 4590 { 4591 const char *str = ""; 4592 4593 /* subcommands */ 4594 switch (note) { 4595 /* SUBCOMMANDS */ 4596 case ZFS_DELEG_NOTE_ALLOW: 4597 str = gettext("Must also have the permission that is being" 4598 "\n\t\t\t\tallowed"); 4599 break; 4600 case ZFS_DELEG_NOTE_CLONE: 4601 str = gettext("Must also have the 'create' ability and 'mount'" 4602 "\n\t\t\t\tability in the origin file system"); 4603 break; 4604 case ZFS_DELEG_NOTE_CREATE: 4605 str = gettext("Must also have the 'mount' ability"); 4606 break; 4607 case ZFS_DELEG_NOTE_DESTROY: 4608 str = gettext("Must also have the 'mount' ability"); 4609 break; 4610 case ZFS_DELEG_NOTE_DIFF: 4611 str = gettext("Allows lookup of paths within a dataset;" 4612 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4613 "\n\t\t\t\tin order to use zfs diff"); 4614 break; 4615 case ZFS_DELEG_NOTE_HOLD: 4616 str = gettext("Allows adding a user hold to a snapshot"); 4617 break; 4618 case ZFS_DELEG_NOTE_MOUNT: 4619 str = gettext("Allows mount/umount of ZFS datasets"); 4620 break; 4621 case ZFS_DELEG_NOTE_PROMOTE: 4622 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4623 " 'promote' ability in the origin file system"); 4624 break; 4625 case ZFS_DELEG_NOTE_RECEIVE: 4626 str = gettext("Must also have the 'mount' and 'create'" 4627 " ability"); 4628 break; 4629 case ZFS_DELEG_NOTE_RELEASE: 4630 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4631 "might destroy the snapshot"); 4632 break; 4633 case ZFS_DELEG_NOTE_RENAME: 4634 str = gettext("Must also have the 'mount' and 'create'" 4635 "\n\t\t\t\tability in the new parent"); 4636 break; 4637 case ZFS_DELEG_NOTE_ROLLBACK: 4638 str = gettext(""); 4639 break; 4640 case ZFS_DELEG_NOTE_SEND: 4641 str = gettext(""); 4642 break; 4643 case ZFS_DELEG_NOTE_SHARE: 4644 str = gettext("Allows sharing file systems over NFS or SMB" 4645 "\n\t\t\t\tprotocols"); 4646 break; 4647 case ZFS_DELEG_NOTE_SNAPSHOT: 4648 str = gettext(""); 4649 break; 4650 /* 4651 * case ZFS_DELEG_NOTE_VSCAN: 4652 * str = gettext(""); 4653 * break; 4654 */ 4655 /* OTHER */ 4656 case ZFS_DELEG_NOTE_GROUPQUOTA: 4657 str = gettext("Allows accessing any groupquota@... property"); 4658 break; 4659 case ZFS_DELEG_NOTE_GROUPUSED: 4660 str = gettext("Allows reading any groupused@... property"); 4661 break; 4662 case ZFS_DELEG_NOTE_USERPROP: 4663 str = gettext("Allows changing any user property"); 4664 break; 4665 case ZFS_DELEG_NOTE_USERQUOTA: 4666 str = gettext("Allows accessing any userquota@... property"); 4667 break; 4668 case ZFS_DELEG_NOTE_USERUSED: 4669 str = gettext("Allows reading any userused@... property"); 4670 break; 4671 /* other */ 4672 default: 4673 str = ""; 4674 } 4675 4676 return (str); 4677 } 4678 4679 struct allow_opts { 4680 boolean_t local; 4681 boolean_t descend; 4682 boolean_t user; 4683 boolean_t group; 4684 boolean_t everyone; 4685 boolean_t create; 4686 boolean_t set; 4687 boolean_t recursive; /* unallow only */ 4688 boolean_t prt_usage; 4689 4690 boolean_t prt_perms; 4691 char *who; 4692 char *perms; 4693 const char *dataset; 4694 }; 4695 4696 static inline int 4697 prop_cmp(const void *a, const void *b) 4698 { 4699 const char *str1 = *(const char **)a; 4700 const char *str2 = *(const char **)b; 4701 return (strcmp(str1, str2)); 4702 } 4703 4704 static void 4705 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4706 { 4707 const char *opt_desc[] = { 4708 "-h", gettext("show this help message and exit"), 4709 "-l", gettext("set permission locally"), 4710 "-d", gettext("set permission for descents"), 4711 "-u", gettext("set permission for user"), 4712 "-g", gettext("set permission for group"), 4713 "-e", gettext("set permission for everyone"), 4714 "-c", gettext("set create time permission"), 4715 "-s", gettext("define permission set"), 4716 /* unallow only */ 4717 "-r", gettext("remove permissions recursively"), 4718 }; 4719 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4720 size_t allow_size = unallow_size - 2; 4721 const char *props[ZFS_NUM_PROPS]; 4722 int i; 4723 size_t count = 0; 4724 FILE *fp = requested ? stdout : stderr; 4725 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4726 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4727 4728 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4729 HELP_ALLOW)); 4730 (void) fprintf(fp, gettext("Options:\n")); 4731 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4732 const char *opt = opt_desc[i++]; 4733 const char *optdsc = opt_desc[i]; 4734 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4735 } 4736 4737 (void) fprintf(fp, gettext("\nThe following permissions are " 4738 "supported:\n\n")); 4739 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4740 gettext("NOTES")); 4741 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4742 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4743 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4744 const char *perm_type = deleg_perm_type(perm_note); 4745 const char *perm_comment = deleg_perm_comment(perm_note); 4746 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4747 } 4748 4749 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4750 zprop_desc_t *pd = &pdtbl[i]; 4751 if (pd->pd_visible != B_TRUE) 4752 continue; 4753 4754 if (pd->pd_attr == PROP_READONLY) 4755 continue; 4756 4757 props[count++] = pd->pd_name; 4758 } 4759 props[count] = NULL; 4760 4761 qsort(props, count, sizeof (char *), prop_cmp); 4762 4763 for (i = 0; i < count; i++) 4764 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4765 4766 if (msg != NULL) 4767 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4768 4769 exit(requested ? 0 : 2); 4770 } 4771 4772 static inline const char * 4773 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4774 char **permsp) 4775 { 4776 if (un && argc == expected_argc - 1) 4777 *permsp = NULL; 4778 else if (argc == expected_argc) 4779 *permsp = argv[argc - 2]; 4780 else 4781 allow_usage(un, B_FALSE, 4782 gettext("wrong number of parameters\n")); 4783 4784 return (argv[argc - 1]); 4785 } 4786 4787 static void 4788 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4789 { 4790 int uge_sum = opts->user + opts->group + opts->everyone; 4791 int csuge_sum = opts->create + opts->set + uge_sum; 4792 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4793 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4794 4795 if (uge_sum > 1) 4796 allow_usage(un, B_FALSE, 4797 gettext("-u, -g, and -e are mutually exclusive\n")); 4798 4799 if (opts->prt_usage) { 4800 if (argc == 0 && all_sum == 0) 4801 allow_usage(un, B_TRUE, NULL); 4802 else 4803 usage(B_FALSE); 4804 } 4805 4806 if (opts->set) { 4807 if (csuge_sum > 1) 4808 allow_usage(un, B_FALSE, 4809 gettext("invalid options combined with -s\n")); 4810 4811 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4812 if (argv[0][0] != '@') 4813 allow_usage(un, B_FALSE, 4814 gettext("invalid set name: missing '@' prefix\n")); 4815 opts->who = argv[0]; 4816 } else if (opts->create) { 4817 if (ldcsuge_sum > 1) 4818 allow_usage(un, B_FALSE, 4819 gettext("invalid options combined with -c\n")); 4820 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4821 } else if (opts->everyone) { 4822 if (csuge_sum > 1) 4823 allow_usage(un, B_FALSE, 4824 gettext("invalid options combined with -e\n")); 4825 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4826 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4827 == 0) { 4828 opts->everyone = B_TRUE; 4829 argc--; 4830 argv++; 4831 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4832 } else if (argc == 1 && !un) { 4833 opts->prt_perms = B_TRUE; 4834 opts->dataset = argv[argc-1]; 4835 } else { 4836 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4837 opts->who = argv[0]; 4838 } 4839 4840 if (!opts->local && !opts->descend) { 4841 opts->local = B_TRUE; 4842 opts->descend = B_TRUE; 4843 } 4844 } 4845 4846 static void 4847 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4848 const char *who, char *perms, nvlist_t *top_nvl) 4849 { 4850 int i; 4851 char ld[2] = { '\0', '\0' }; 4852 char who_buf[MAXNAMELEN + 32]; 4853 char base_type = '\0'; 4854 char set_type = '\0'; 4855 nvlist_t *base_nvl = NULL; 4856 nvlist_t *set_nvl = NULL; 4857 nvlist_t *nvl; 4858 4859 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4860 nomem(); 4861 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4862 nomem(); 4863 4864 switch (type) { 4865 case ZFS_DELEG_NAMED_SET_SETS: 4866 case ZFS_DELEG_NAMED_SET: 4867 set_type = ZFS_DELEG_NAMED_SET_SETS; 4868 base_type = ZFS_DELEG_NAMED_SET; 4869 ld[0] = ZFS_DELEG_NA; 4870 break; 4871 case ZFS_DELEG_CREATE_SETS: 4872 case ZFS_DELEG_CREATE: 4873 set_type = ZFS_DELEG_CREATE_SETS; 4874 base_type = ZFS_DELEG_CREATE; 4875 ld[0] = ZFS_DELEG_NA; 4876 break; 4877 case ZFS_DELEG_USER_SETS: 4878 case ZFS_DELEG_USER: 4879 set_type = ZFS_DELEG_USER_SETS; 4880 base_type = ZFS_DELEG_USER; 4881 if (local) 4882 ld[0] = ZFS_DELEG_LOCAL; 4883 if (descend) 4884 ld[1] = ZFS_DELEG_DESCENDENT; 4885 break; 4886 case ZFS_DELEG_GROUP_SETS: 4887 case ZFS_DELEG_GROUP: 4888 set_type = ZFS_DELEG_GROUP_SETS; 4889 base_type = ZFS_DELEG_GROUP; 4890 if (local) 4891 ld[0] = ZFS_DELEG_LOCAL; 4892 if (descend) 4893 ld[1] = ZFS_DELEG_DESCENDENT; 4894 break; 4895 case ZFS_DELEG_EVERYONE_SETS: 4896 case ZFS_DELEG_EVERYONE: 4897 set_type = ZFS_DELEG_EVERYONE_SETS; 4898 base_type = ZFS_DELEG_EVERYONE; 4899 if (local) 4900 ld[0] = ZFS_DELEG_LOCAL; 4901 if (descend) 4902 ld[1] = ZFS_DELEG_DESCENDENT; 4903 break; 4904 4905 default: 4906 assert(set_type != '\0' && base_type != '\0'); 4907 } 4908 4909 if (perms != NULL) { 4910 char *curr = perms; 4911 char *end = curr + strlen(perms); 4912 4913 while (curr < end) { 4914 char *delim = strchr(curr, ','); 4915 if (delim == NULL) 4916 delim = end; 4917 else 4918 *delim = '\0'; 4919 4920 if (curr[0] == '@') 4921 nvl = set_nvl; 4922 else 4923 nvl = base_nvl; 4924 4925 (void) nvlist_add_boolean(nvl, curr); 4926 if (delim != end) 4927 *delim = ','; 4928 curr = delim + 1; 4929 } 4930 4931 for (i = 0; i < 2; i++) { 4932 char locality = ld[i]; 4933 if (locality == 0) 4934 continue; 4935 4936 if (!nvlist_empty(base_nvl)) { 4937 if (who != NULL) 4938 (void) snprintf(who_buf, 4939 sizeof (who_buf), "%c%c$%s", 4940 base_type, locality, who); 4941 else 4942 (void) snprintf(who_buf, 4943 sizeof (who_buf), "%c%c$", 4944 base_type, locality); 4945 4946 (void) nvlist_add_nvlist(top_nvl, who_buf, 4947 base_nvl); 4948 } 4949 4950 4951 if (!nvlist_empty(set_nvl)) { 4952 if (who != NULL) 4953 (void) snprintf(who_buf, 4954 sizeof (who_buf), "%c%c$%s", 4955 set_type, locality, who); 4956 else 4957 (void) snprintf(who_buf, 4958 sizeof (who_buf), "%c%c$", 4959 set_type, locality); 4960 4961 (void) nvlist_add_nvlist(top_nvl, who_buf, 4962 set_nvl); 4963 } 4964 } 4965 } else { 4966 for (i = 0; i < 2; i++) { 4967 char locality = ld[i]; 4968 if (locality == 0) 4969 continue; 4970 4971 if (who != NULL) 4972 (void) snprintf(who_buf, sizeof (who_buf), 4973 "%c%c$%s", base_type, locality, who); 4974 else 4975 (void) snprintf(who_buf, sizeof (who_buf), 4976 "%c%c$", base_type, locality); 4977 (void) nvlist_add_boolean(top_nvl, who_buf); 4978 4979 if (who != NULL) 4980 (void) snprintf(who_buf, sizeof (who_buf), 4981 "%c%c$%s", set_type, locality, who); 4982 else 4983 (void) snprintf(who_buf, sizeof (who_buf), 4984 "%c%c$", set_type, locality); 4985 (void) nvlist_add_boolean(top_nvl, who_buf); 4986 } 4987 } 4988 } 4989 4990 static int 4991 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4992 { 4993 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4994 nomem(); 4995 4996 if (opts->set) { 4997 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4998 opts->descend, opts->who, opts->perms, *nvlp); 4999 } else if (opts->create) { 5000 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5001 opts->descend, NULL, opts->perms, *nvlp); 5002 } else if (opts->everyone) { 5003 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5004 opts->descend, NULL, opts->perms, *nvlp); 5005 } else { 5006 char *curr = opts->who; 5007 char *end = curr + strlen(curr); 5008 5009 while (curr < end) { 5010 const char *who; 5011 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5012 char *endch; 5013 char *delim = strchr(curr, ','); 5014 char errbuf[256]; 5015 char id[64]; 5016 struct passwd *p = NULL; 5017 struct group *g = NULL; 5018 5019 uid_t rid; 5020 if (delim == NULL) 5021 delim = end; 5022 else 5023 *delim = '\0'; 5024 5025 rid = (uid_t)strtol(curr, &endch, 0); 5026 if (opts->user) { 5027 who_type = ZFS_DELEG_USER; 5028 if (*endch != '\0') 5029 p = getpwnam(curr); 5030 else 5031 p = getpwuid(rid); 5032 5033 if (p != NULL) 5034 rid = p->pw_uid; 5035 else { 5036 (void) snprintf(errbuf, 256, gettext( 5037 "invalid user %s"), curr); 5038 allow_usage(un, B_TRUE, errbuf); 5039 } 5040 } else if (opts->group) { 5041 who_type = ZFS_DELEG_GROUP; 5042 if (*endch != '\0') 5043 g = getgrnam(curr); 5044 else 5045 g = getgrgid(rid); 5046 5047 if (g != NULL) 5048 rid = g->gr_gid; 5049 else { 5050 (void) snprintf(errbuf, 256, gettext( 5051 "invalid group %s"), curr); 5052 allow_usage(un, B_TRUE, errbuf); 5053 } 5054 } else { 5055 if (*endch != '\0') { 5056 p = getpwnam(curr); 5057 } else { 5058 p = getpwuid(rid); 5059 } 5060 5061 if (p == NULL) { 5062 if (*endch != '\0') { 5063 g = getgrnam(curr); 5064 } else { 5065 g = getgrgid(rid); 5066 } 5067 } 5068 5069 if (p != NULL) { 5070 who_type = ZFS_DELEG_USER; 5071 rid = p->pw_uid; 5072 } else if (g != NULL) { 5073 who_type = ZFS_DELEG_GROUP; 5074 rid = g->gr_gid; 5075 } else { 5076 (void) snprintf(errbuf, 256, gettext( 5077 "invalid user/group %s"), curr); 5078 allow_usage(un, B_TRUE, errbuf); 5079 } 5080 } 5081 5082 (void) sprintf(id, "%u", rid); 5083 who = id; 5084 5085 store_allow_perm(who_type, opts->local, 5086 opts->descend, who, opts->perms, *nvlp); 5087 curr = delim + 1; 5088 } 5089 } 5090 5091 return (0); 5092 } 5093 5094 static void 5095 print_set_creat_perms(uu_avl_t *who_avl) 5096 { 5097 const char *sc_title[] = { 5098 gettext("Permission sets:\n"), 5099 gettext("Create time permissions:\n"), 5100 NULL 5101 }; 5102 const char **title_ptr = sc_title; 5103 who_perm_node_t *who_node = NULL; 5104 int prev_weight = -1; 5105 5106 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5107 who_node = uu_avl_next(who_avl, who_node)) { 5108 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5109 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5110 const char *who_name = who_node->who_perm.who_name; 5111 int weight = who_type2weight(who_type); 5112 boolean_t first = B_TRUE; 5113 deleg_perm_node_t *deleg_node; 5114 5115 if (prev_weight != weight) { 5116 (void) printf(*title_ptr++); 5117 prev_weight = weight; 5118 } 5119 5120 if (who_name == NULL || strnlen(who_name, 1) == 0) 5121 (void) printf("\t"); 5122 else 5123 (void) printf("\t%s ", who_name); 5124 5125 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5126 deleg_node = uu_avl_next(avl, deleg_node)) { 5127 if (first) { 5128 (void) printf("%s", 5129 deleg_node->dpn_perm.dp_name); 5130 first = B_FALSE; 5131 } else 5132 (void) printf(",%s", 5133 deleg_node->dpn_perm.dp_name); 5134 } 5135 5136 (void) printf("\n"); 5137 } 5138 } 5139 5140 static void 5141 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5142 const char *title) 5143 { 5144 who_perm_node_t *who_node = NULL; 5145 boolean_t prt_title = B_TRUE; 5146 uu_avl_walk_t *walk; 5147 5148 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5149 nomem(); 5150 5151 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5152 const char *who_name = who_node->who_perm.who_name; 5153 const char *nice_who_name = who_node->who_perm.who_ug_name; 5154 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5155 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5156 char delim = ' '; 5157 deleg_perm_node_t *deleg_node; 5158 boolean_t prt_who = B_TRUE; 5159 5160 for (deleg_node = uu_avl_first(avl); 5161 deleg_node != NULL; 5162 deleg_node = uu_avl_next(avl, deleg_node)) { 5163 if (local != deleg_node->dpn_perm.dp_local || 5164 descend != deleg_node->dpn_perm.dp_descend) 5165 continue; 5166 5167 if (prt_who) { 5168 const char *who = NULL; 5169 if (prt_title) { 5170 prt_title = B_FALSE; 5171 (void) printf(title); 5172 } 5173 5174 switch (who_type) { 5175 case ZFS_DELEG_USER_SETS: 5176 case ZFS_DELEG_USER: 5177 who = gettext("user"); 5178 if (nice_who_name) 5179 who_name = nice_who_name; 5180 break; 5181 case ZFS_DELEG_GROUP_SETS: 5182 case ZFS_DELEG_GROUP: 5183 who = gettext("group"); 5184 if (nice_who_name) 5185 who_name = nice_who_name; 5186 break; 5187 case ZFS_DELEG_EVERYONE_SETS: 5188 case ZFS_DELEG_EVERYONE: 5189 who = gettext("everyone"); 5190 who_name = NULL; 5191 break; 5192 5193 default: 5194 assert(who != NULL); 5195 } 5196 5197 prt_who = B_FALSE; 5198 if (who_name == NULL) 5199 (void) printf("\t%s", who); 5200 else 5201 (void) printf("\t%s %s", who, who_name); 5202 } 5203 5204 (void) printf("%c%s", delim, 5205 deleg_node->dpn_perm.dp_name); 5206 delim = ','; 5207 } 5208 5209 if (!prt_who) 5210 (void) printf("\n"); 5211 } 5212 5213 uu_avl_walk_end(walk); 5214 } 5215 5216 static void 5217 print_fs_perms(fs_perm_set_t *fspset) 5218 { 5219 fs_perm_node_t *node = NULL; 5220 char buf[MAXNAMELEN + 32]; 5221 const char *dsname = buf; 5222 5223 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5224 node = uu_list_next(fspset->fsps_list, node)) { 5225 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5226 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5227 int left = 0; 5228 5229 (void) snprintf(buf, sizeof (buf), 5230 gettext("---- Permissions on %s "), 5231 node->fspn_fsperm.fsp_name); 5232 (void) printf(dsname); 5233 left = 70 - strlen(buf); 5234 while (left-- > 0) 5235 (void) printf("-"); 5236 (void) printf("\n"); 5237 5238 print_set_creat_perms(sc_avl); 5239 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5240 gettext("Local permissions:\n")); 5241 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5242 gettext("Descendent permissions:\n")); 5243 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5244 gettext("Local+Descendent permissions:\n")); 5245 } 5246 } 5247 5248 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5249 5250 struct deleg_perms { 5251 boolean_t un; 5252 nvlist_t *nvl; 5253 }; 5254 5255 static int 5256 set_deleg_perms(zfs_handle_t *zhp, void *data) 5257 { 5258 struct deleg_perms *perms = (struct deleg_perms *)data; 5259 zfs_type_t zfs_type = zfs_get_type(zhp); 5260 5261 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5262 return (0); 5263 5264 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5265 } 5266 5267 static int 5268 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5269 { 5270 zfs_handle_t *zhp; 5271 nvlist_t *perm_nvl = NULL; 5272 nvlist_t *update_perm_nvl = NULL; 5273 int error = 1; 5274 int c; 5275 struct allow_opts opts = { 0 }; 5276 5277 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5278 5279 /* check opts */ 5280 while ((c = getopt(argc, argv, optstr)) != -1) { 5281 switch (c) { 5282 case 'l': 5283 opts.local = B_TRUE; 5284 break; 5285 case 'd': 5286 opts.descend = B_TRUE; 5287 break; 5288 case 'u': 5289 opts.user = B_TRUE; 5290 break; 5291 case 'g': 5292 opts.group = B_TRUE; 5293 break; 5294 case 'e': 5295 opts.everyone = B_TRUE; 5296 break; 5297 case 's': 5298 opts.set = B_TRUE; 5299 break; 5300 case 'c': 5301 opts.create = B_TRUE; 5302 break; 5303 case 'r': 5304 opts.recursive = B_TRUE; 5305 break; 5306 case ':': 5307 (void) fprintf(stderr, gettext("missing argument for " 5308 "'%c' option\n"), optopt); 5309 usage(B_FALSE); 5310 break; 5311 case 'h': 5312 opts.prt_usage = B_TRUE; 5313 break; 5314 case '?': 5315 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5316 optopt); 5317 usage(B_FALSE); 5318 } 5319 } 5320 5321 argc -= optind; 5322 argv += optind; 5323 5324 /* check arguments */ 5325 parse_allow_args(argc, argv, un, &opts); 5326 5327 /* try to open the dataset */ 5328 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5329 ZFS_TYPE_VOLUME)) == NULL) { 5330 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5331 opts.dataset); 5332 return (-1); 5333 } 5334 5335 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5336 goto cleanup2; 5337 5338 fs_perm_set_init(&fs_perm_set); 5339 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5340 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5341 goto cleanup1; 5342 } 5343 5344 if (opts.prt_perms) 5345 print_fs_perms(&fs_perm_set); 5346 else { 5347 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5348 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5349 goto cleanup0; 5350 5351 if (un && opts.recursive) { 5352 struct deleg_perms data = { un, update_perm_nvl }; 5353 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5354 &data) != 0) 5355 goto cleanup0; 5356 } 5357 } 5358 5359 error = 0; 5360 5361 cleanup0: 5362 nvlist_free(perm_nvl); 5363 nvlist_free(update_perm_nvl); 5364 cleanup1: 5365 fs_perm_set_fini(&fs_perm_set); 5366 cleanup2: 5367 zfs_close(zhp); 5368 5369 return (error); 5370 } 5371 5372 static int 5373 zfs_do_allow(int argc, char **argv) 5374 { 5375 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5376 } 5377 5378 static int 5379 zfs_do_unallow(int argc, char **argv) 5380 { 5381 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5382 } 5383 5384 static int 5385 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5386 { 5387 int errors = 0; 5388 int i; 5389 const char *tag; 5390 boolean_t recursive = B_FALSE; 5391 const char *opts = holding ? "rt" : "r"; 5392 int c; 5393 5394 /* check options */ 5395 while ((c = getopt(argc, argv, opts)) != -1) { 5396 switch (c) { 5397 case 'r': 5398 recursive = B_TRUE; 5399 break; 5400 case '?': 5401 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5402 optopt); 5403 usage(B_FALSE); 5404 } 5405 } 5406 5407 argc -= optind; 5408 argv += optind; 5409 5410 /* check number of arguments */ 5411 if (argc < 2) 5412 usage(B_FALSE); 5413 5414 tag = argv[0]; 5415 --argc; 5416 ++argv; 5417 5418 if (holding && tag[0] == '.') { 5419 /* tags starting with '.' are reserved for libzfs */ 5420 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5421 usage(B_FALSE); 5422 } 5423 5424 for (i = 0; i < argc; ++i) { 5425 zfs_handle_t *zhp; 5426 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5427 const char *delim; 5428 char *path = argv[i]; 5429 5430 delim = strchr(path, '@'); 5431 if (delim == NULL) { 5432 (void) fprintf(stderr, 5433 gettext("'%s' is not a snapshot\n"), path); 5434 ++errors; 5435 continue; 5436 } 5437 (void) strncpy(parent, path, delim - path); 5438 parent[delim - path] = '\0'; 5439 5440 zhp = zfs_open(g_zfs, parent, 5441 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5442 if (zhp == NULL) { 5443 ++errors; 5444 continue; 5445 } 5446 if (holding) { 5447 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5448 ++errors; 5449 } else { 5450 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5451 ++errors; 5452 } 5453 zfs_close(zhp); 5454 } 5455 5456 return (errors != 0); 5457 } 5458 5459 /* 5460 * zfs hold [-r] [-t] <tag> <snap> ... 5461 * 5462 * -r Recursively hold 5463 * 5464 * Apply a user-hold with the given tag to the list of snapshots. 5465 */ 5466 static int 5467 zfs_do_hold(int argc, char **argv) 5468 { 5469 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5470 } 5471 5472 /* 5473 * zfs release [-r] <tag> <snap> ... 5474 * 5475 * -r Recursively release 5476 * 5477 * Release a user-hold with the given tag from the list of snapshots. 5478 */ 5479 static int 5480 zfs_do_release(int argc, char **argv) 5481 { 5482 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5483 } 5484 5485 typedef struct holds_cbdata { 5486 boolean_t cb_recursive; 5487 const char *cb_snapname; 5488 nvlist_t **cb_nvlp; 5489 size_t cb_max_namelen; 5490 size_t cb_max_taglen; 5491 } holds_cbdata_t; 5492 5493 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5494 #define DATETIME_BUF_LEN (32) 5495 /* 5496 * 5497 */ 5498 static void 5499 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5500 { 5501 int i; 5502 nvpair_t *nvp = NULL; 5503 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5504 const char *col; 5505 5506 if (!scripted) { 5507 for (i = 0; i < 3; i++) { 5508 col = gettext(hdr_cols[i]); 5509 if (i < 2) 5510 (void) printf("%-*s ", i ? tagwidth : nwidth, 5511 col); 5512 else 5513 (void) printf("%s\n", col); 5514 } 5515 } 5516 5517 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5518 char *zname = nvpair_name(nvp); 5519 nvlist_t *nvl2; 5520 nvpair_t *nvp2 = NULL; 5521 (void) nvpair_value_nvlist(nvp, &nvl2); 5522 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5523 char tsbuf[DATETIME_BUF_LEN]; 5524 char *tagname = nvpair_name(nvp2); 5525 uint64_t val = 0; 5526 time_t time; 5527 struct tm t; 5528 char sep = scripted ? '\t' : ' '; 5529 size_t sepnum = scripted ? 1 : 2; 5530 5531 (void) nvpair_value_uint64(nvp2, &val); 5532 time = (time_t)val; 5533 (void) localtime_r(&time, &t); 5534 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5535 gettext(STRFTIME_FMT_STR), &t); 5536 5537 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5538 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5539 } 5540 } 5541 } 5542 5543 /* 5544 * Generic callback function to list a dataset or snapshot. 5545 */ 5546 static int 5547 holds_callback(zfs_handle_t *zhp, void *data) 5548 { 5549 holds_cbdata_t *cbp = data; 5550 nvlist_t *top_nvl = *cbp->cb_nvlp; 5551 nvlist_t *nvl = NULL; 5552 nvpair_t *nvp = NULL; 5553 const char *zname = zfs_get_name(zhp); 5554 size_t znamelen = strlen(zname); 5555 5556 if (cbp->cb_recursive) { 5557 const char *snapname; 5558 char *delim = strchr(zname, '@'); 5559 if (delim == NULL) 5560 return (0); 5561 5562 snapname = delim + 1; 5563 if (strcmp(cbp->cb_snapname, snapname)) 5564 return (0); 5565 } 5566 5567 if (zfs_get_holds(zhp, &nvl) != 0) 5568 return (-1); 5569 5570 if (znamelen > cbp->cb_max_namelen) 5571 cbp->cb_max_namelen = znamelen; 5572 5573 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5574 const char *tag = nvpair_name(nvp); 5575 size_t taglen = strlen(tag); 5576 if (taglen > cbp->cb_max_taglen) 5577 cbp->cb_max_taglen = taglen; 5578 } 5579 5580 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5581 } 5582 5583 /* 5584 * zfs holds [-r] <snap> ... 5585 * 5586 * -r Recursively hold 5587 */ 5588 static int 5589 zfs_do_holds(int argc, char **argv) 5590 { 5591 int errors = 0; 5592 int c; 5593 int i; 5594 boolean_t scripted = B_FALSE; 5595 boolean_t recursive = B_FALSE; 5596 const char *opts = "rH"; 5597 nvlist_t *nvl; 5598 5599 int types = ZFS_TYPE_SNAPSHOT; 5600 holds_cbdata_t cb = { 0 }; 5601 5602 int limit = 0; 5603 int ret = 0; 5604 int flags = 0; 5605 5606 /* check options */ 5607 while ((c = getopt(argc, argv, opts)) != -1) { 5608 switch (c) { 5609 case 'r': 5610 recursive = B_TRUE; 5611 break; 5612 case 'H': 5613 scripted = B_TRUE; 5614 break; 5615 case '?': 5616 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5617 optopt); 5618 usage(B_FALSE); 5619 } 5620 } 5621 5622 if (recursive) { 5623 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5624 flags |= ZFS_ITER_RECURSE; 5625 } 5626 5627 argc -= optind; 5628 argv += optind; 5629 5630 /* check number of arguments */ 5631 if (argc < 1) 5632 usage(B_FALSE); 5633 5634 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5635 nomem(); 5636 5637 for (i = 0; i < argc; ++i) { 5638 char *snapshot = argv[i]; 5639 const char *delim; 5640 const char *snapname; 5641 5642 delim = strchr(snapshot, '@'); 5643 if (delim == NULL) { 5644 (void) fprintf(stderr, 5645 gettext("'%s' is not a snapshot\n"), snapshot); 5646 ++errors; 5647 continue; 5648 } 5649 snapname = delim + 1; 5650 if (recursive) 5651 snapshot[delim - snapshot] = '\0'; 5652 5653 cb.cb_recursive = recursive; 5654 cb.cb_snapname = snapname; 5655 cb.cb_nvlp = &nvl; 5656 5657 /* 5658 * 1. collect holds data, set format options 5659 */ 5660 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5661 holds_callback, &cb); 5662 if (ret != 0) 5663 ++errors; 5664 } 5665 5666 /* 5667 * 2. print holds data 5668 */ 5669 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5670 5671 if (nvlist_empty(nvl)) 5672 (void) printf(gettext("no datasets available\n")); 5673 5674 nvlist_free(nvl); 5675 5676 return (0 != errors); 5677 } 5678 5679 #define CHECK_SPINNER 30 5680 #define SPINNER_TIME 3 /* seconds */ 5681 #define MOUNT_TIME 5 /* seconds */ 5682 5683 static int 5684 get_one_dataset(zfs_handle_t *zhp, void *data) 5685 { 5686 static char *spin[] = { "-", "\\", "|", "/" }; 5687 static int spinval = 0; 5688 static int spincheck = 0; 5689 static time_t last_spin_time = (time_t)0; 5690 get_all_cb_t *cbp = data; 5691 zfs_type_t type = zfs_get_type(zhp); 5692 5693 if (cbp->cb_verbose) { 5694 if (--spincheck < 0) { 5695 time_t now = time(NULL); 5696 if (last_spin_time + SPINNER_TIME < now) { 5697 update_progress(spin[spinval++ % 4]); 5698 last_spin_time = now; 5699 } 5700 spincheck = CHECK_SPINNER; 5701 } 5702 } 5703 5704 /* 5705 * Interate over any nested datasets. 5706 */ 5707 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5708 zfs_close(zhp); 5709 return (1); 5710 } 5711 5712 /* 5713 * Skip any datasets whose type does not match. 5714 */ 5715 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5716 zfs_close(zhp); 5717 return (0); 5718 } 5719 libzfs_add_handle(cbp, zhp); 5720 assert(cbp->cb_used <= cbp->cb_alloc); 5721 5722 return (0); 5723 } 5724 5725 static void 5726 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5727 { 5728 get_all_cb_t cb = { 0 }; 5729 cb.cb_verbose = verbose; 5730 cb.cb_getone = get_one_dataset; 5731 5732 if (verbose) 5733 set_progress_header(gettext("Reading ZFS config")); 5734 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5735 5736 *dslist = cb.cb_handles; 5737 *count = cb.cb_used; 5738 5739 if (verbose) 5740 finish_progress(gettext("done.")); 5741 } 5742 5743 /* 5744 * Generic callback for sharing or mounting filesystems. Because the code is so 5745 * similar, we have a common function with an extra parameter to determine which 5746 * mode we are using. 5747 */ 5748 #define OP_SHARE 0x1 5749 #define OP_MOUNT 0x2 5750 5751 /* 5752 * Share or mount a dataset. 5753 */ 5754 static int 5755 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5756 boolean_t explicit, const char *options) 5757 { 5758 char mountpoint[ZFS_MAXPROPLEN]; 5759 char shareopts[ZFS_MAXPROPLEN]; 5760 char smbshareopts[ZFS_MAXPROPLEN]; 5761 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5762 struct mnttab mnt; 5763 uint64_t zoned, canmount; 5764 boolean_t shared_nfs, shared_smb; 5765 5766 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5767 5768 /* 5769 * Check to make sure we can mount/share this dataset. If we 5770 * are in the global zone and the filesystem is exported to a 5771 * local zone, or if we are in a local zone and the 5772 * filesystem is not exported, then it is an error. 5773 */ 5774 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5775 5776 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5777 if (!explicit) 5778 return (0); 5779 5780 (void) fprintf(stderr, gettext("cannot %s '%s': " 5781 "dataset is exported to a local zone\n"), cmdname, 5782 zfs_get_name(zhp)); 5783 return (1); 5784 5785 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5786 if (!explicit) 5787 return (0); 5788 5789 (void) fprintf(stderr, gettext("cannot %s '%s': " 5790 "permission denied\n"), cmdname, 5791 zfs_get_name(zhp)); 5792 return (1); 5793 } 5794 5795 /* 5796 * Ignore any filesystems which don't apply to us. This 5797 * includes those with a legacy mountpoint, or those with 5798 * legacy share options. 5799 */ 5800 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5801 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5802 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5803 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5804 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5805 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5806 5807 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5808 strcmp(smbshareopts, "off") == 0) { 5809 if (!explicit) 5810 return (0); 5811 5812 (void) fprintf(stderr, gettext("cannot share '%s': " 5813 "legacy share\n"), zfs_get_name(zhp)); 5814 (void) fprintf(stderr, gettext("use share(1M) to " 5815 "share this filesystem, or set " 5816 "sharenfs property on\n")); 5817 return (1); 5818 } 5819 5820 /* 5821 * We cannot share or mount legacy filesystems. If the 5822 * shareopts is non-legacy but the mountpoint is legacy, we 5823 * treat it as a legacy share. 5824 */ 5825 if (strcmp(mountpoint, "legacy") == 0) { 5826 if (!explicit) 5827 return (0); 5828 5829 (void) fprintf(stderr, gettext("cannot %s '%s': " 5830 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5831 (void) fprintf(stderr, gettext("use %s(1M) to " 5832 "%s this filesystem\n"), cmdname, cmdname); 5833 return (1); 5834 } 5835 5836 if (strcmp(mountpoint, "none") == 0) { 5837 if (!explicit) 5838 return (0); 5839 5840 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5841 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5842 return (1); 5843 } 5844 5845 /* 5846 * canmount explicit outcome 5847 * on no pass through 5848 * on yes pass through 5849 * off no return 0 5850 * off yes display error, return 1 5851 * noauto no return 0 5852 * noauto yes pass through 5853 */ 5854 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5855 if (canmount == ZFS_CANMOUNT_OFF) { 5856 if (!explicit) 5857 return (0); 5858 5859 (void) fprintf(stderr, gettext("cannot %s '%s': " 5860 "'canmount' property is set to 'off'\n"), cmdname, 5861 zfs_get_name(zhp)); 5862 return (1); 5863 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5864 return (0); 5865 } 5866 5867 /* 5868 * If this filesystem is inconsistent and has a receive resume 5869 * token, we can not mount it. 5870 */ 5871 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5872 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5873 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5874 if (!explicit) 5875 return (0); 5876 5877 (void) fprintf(stderr, gettext("cannot %s '%s': " 5878 "Contains partially-completed state from " 5879 "\"zfs receive -r\", which can be resumed with " 5880 "\"zfs send -t\"\n"), 5881 cmdname, zfs_get_name(zhp)); 5882 return (1); 5883 } 5884 5885 /* 5886 * At this point, we have verified that the mountpoint and/or 5887 * shareopts are appropriate for auto management. If the 5888 * filesystem is already mounted or shared, return (failing 5889 * for explicit requests); otherwise mount or share the 5890 * filesystem. 5891 */ 5892 switch (op) { 5893 case OP_SHARE: 5894 5895 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5896 shared_smb = zfs_is_shared_smb(zhp, NULL); 5897 5898 if ((shared_nfs && shared_smb) || 5899 (shared_nfs && strcmp(shareopts, "on") == 0 && 5900 strcmp(smbshareopts, "off") == 0) || 5901 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5902 strcmp(shareopts, "off") == 0)) { 5903 if (!explicit) 5904 return (0); 5905 5906 (void) fprintf(stderr, gettext("cannot share " 5907 "'%s': filesystem already shared\n"), 5908 zfs_get_name(zhp)); 5909 return (1); 5910 } 5911 5912 if (!zfs_is_mounted(zhp, NULL) && 5913 zfs_mount(zhp, NULL, 0) != 0) 5914 return (1); 5915 5916 if (protocol == NULL) { 5917 if (zfs_shareall(zhp) != 0) 5918 return (1); 5919 } else if (strcmp(protocol, "nfs") == 0) { 5920 if (zfs_share_nfs(zhp)) 5921 return (1); 5922 } else if (strcmp(protocol, "smb") == 0) { 5923 if (zfs_share_smb(zhp)) 5924 return (1); 5925 } else { 5926 (void) fprintf(stderr, gettext("cannot share " 5927 "'%s': invalid share type '%s' " 5928 "specified\n"), 5929 zfs_get_name(zhp), protocol); 5930 return (1); 5931 } 5932 5933 break; 5934 5935 case OP_MOUNT: 5936 if (options == NULL) 5937 mnt.mnt_mntopts = ""; 5938 else 5939 mnt.mnt_mntopts = (char *)options; 5940 5941 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5942 zfs_is_mounted(zhp, NULL)) { 5943 if (!explicit) 5944 return (0); 5945 5946 (void) fprintf(stderr, gettext("cannot mount " 5947 "'%s': filesystem already mounted\n"), 5948 zfs_get_name(zhp)); 5949 return (1); 5950 } 5951 5952 if (zfs_mount(zhp, options, flags) != 0) 5953 return (1); 5954 break; 5955 } 5956 5957 return (0); 5958 } 5959 5960 /* 5961 * Reports progress in the form "(current/total)". Not thread-safe. 5962 */ 5963 static void 5964 report_mount_progress(int current, int total) 5965 { 5966 static time_t last_progress_time = 0; 5967 time_t now = time(NULL); 5968 char info[32]; 5969 5970 /* report 1..n instead of 0..n-1 */ 5971 ++current; 5972 5973 /* display header if we're here for the first time */ 5974 if (current == 1) { 5975 set_progress_header(gettext("Mounting ZFS filesystems")); 5976 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5977 /* too soon to report again */ 5978 return; 5979 } 5980 5981 last_progress_time = now; 5982 5983 (void) sprintf(info, "(%d/%d)", current, total); 5984 5985 if (current == total) 5986 finish_progress(info); 5987 else 5988 update_progress(info); 5989 } 5990 5991 static void 5992 append_options(char *mntopts, char *newopts) 5993 { 5994 int len = strlen(mntopts); 5995 5996 /* original length plus new string to append plus 1 for the comma */ 5997 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5998 (void) fprintf(stderr, gettext("the opts argument for " 5999 "'%c' option is too long (more than %d chars)\n"), 6000 "-o", MNT_LINE_MAX); 6001 usage(B_FALSE); 6002 } 6003 6004 if (*mntopts) 6005 mntopts[len++] = ','; 6006 6007 (void) strcpy(&mntopts[len], newopts); 6008 } 6009 6010 static int 6011 share_mount(int op, int argc, char **argv) 6012 { 6013 int do_all = 0; 6014 boolean_t verbose = B_FALSE; 6015 int c, ret = 0; 6016 char *options = NULL; 6017 int flags = 0; 6018 6019 /* check options */ 6020 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6021 != -1) { 6022 switch (c) { 6023 case 'a': 6024 do_all = 1; 6025 break; 6026 case 'v': 6027 verbose = B_TRUE; 6028 break; 6029 case 'o': 6030 if (*optarg == '\0') { 6031 (void) fprintf(stderr, gettext("empty mount " 6032 "options (-o) specified\n")); 6033 usage(B_FALSE); 6034 } 6035 6036 if (options == NULL) 6037 options = safe_malloc(MNT_LINE_MAX + 1); 6038 6039 /* option validation is done later */ 6040 append_options(options, optarg); 6041 break; 6042 6043 case 'O': 6044 flags |= MS_OVERLAY; 6045 break; 6046 case ':': 6047 (void) fprintf(stderr, gettext("missing argument for " 6048 "'%c' option\n"), optopt); 6049 usage(B_FALSE); 6050 break; 6051 case '?': 6052 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6053 optopt); 6054 usage(B_FALSE); 6055 } 6056 } 6057 6058 argc -= optind; 6059 argv += optind; 6060 6061 /* check number of arguments */ 6062 if (do_all) { 6063 zfs_handle_t **dslist = NULL; 6064 size_t i, count = 0; 6065 char *protocol = NULL; 6066 6067 if (op == OP_SHARE && argc > 0) { 6068 if (strcmp(argv[0], "nfs") != 0 && 6069 strcmp(argv[0], "smb") != 0) { 6070 (void) fprintf(stderr, gettext("share type " 6071 "must be 'nfs' or 'smb'\n")); 6072 usage(B_FALSE); 6073 } 6074 protocol = argv[0]; 6075 argc--; 6076 argv++; 6077 } 6078 6079 if (argc != 0) { 6080 (void) fprintf(stderr, gettext("too many arguments\n")); 6081 usage(B_FALSE); 6082 } 6083 6084 start_progress_timer(); 6085 get_all_datasets(&dslist, &count, verbose); 6086 6087 if (count == 0) 6088 return (0); 6089 6090 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6091 6092 for (i = 0; i < count; i++) { 6093 if (verbose) 6094 report_mount_progress(i, count); 6095 6096 if (share_mount_one(dslist[i], op, flags, protocol, 6097 B_FALSE, options) != 0) 6098 ret = 1; 6099 zfs_close(dslist[i]); 6100 } 6101 6102 free(dslist); 6103 } else if (argc == 0) { 6104 struct mnttab entry; 6105 6106 if ((op == OP_SHARE) || (options != NULL)) { 6107 (void) fprintf(stderr, gettext("missing filesystem " 6108 "argument (specify -a for all)\n")); 6109 usage(B_FALSE); 6110 } 6111 6112 /* 6113 * When mount is given no arguments, go through /etc/mnttab and 6114 * display any active ZFS mounts. We hide any snapshots, since 6115 * they are controlled automatically. 6116 */ 6117 rewind(mnttab_file); 6118 while (getmntent(mnttab_file, &entry) == 0) { 6119 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6120 strchr(entry.mnt_special, '@') != NULL) 6121 continue; 6122 6123 (void) printf("%-30s %s\n", entry.mnt_special, 6124 entry.mnt_mountp); 6125 } 6126 6127 } else { 6128 zfs_handle_t *zhp; 6129 6130 if (argc > 1) { 6131 (void) fprintf(stderr, 6132 gettext("too many arguments\n")); 6133 usage(B_FALSE); 6134 } 6135 6136 if ((zhp = zfs_open(g_zfs, argv[0], 6137 ZFS_TYPE_FILESYSTEM)) == NULL) { 6138 ret = 1; 6139 } else { 6140 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6141 options); 6142 zfs_close(zhp); 6143 } 6144 } 6145 6146 return (ret); 6147 } 6148 6149 /* 6150 * zfs mount -a [nfs] 6151 * zfs mount filesystem 6152 * 6153 * Mount all filesystems, or mount the given filesystem. 6154 */ 6155 static int 6156 zfs_do_mount(int argc, char **argv) 6157 { 6158 return (share_mount(OP_MOUNT, argc, argv)); 6159 } 6160 6161 /* 6162 * zfs share -a [nfs | smb] 6163 * zfs share filesystem 6164 * 6165 * Share all filesystems, or share the given filesystem. 6166 */ 6167 static int 6168 zfs_do_share(int argc, char **argv) 6169 { 6170 return (share_mount(OP_SHARE, argc, argv)); 6171 } 6172 6173 typedef struct unshare_unmount_node { 6174 zfs_handle_t *un_zhp; 6175 char *un_mountp; 6176 uu_avl_node_t un_avlnode; 6177 } unshare_unmount_node_t; 6178 6179 /* ARGSUSED */ 6180 static int 6181 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6182 { 6183 const unshare_unmount_node_t *l = larg; 6184 const unshare_unmount_node_t *r = rarg; 6185 6186 return (strcmp(l->un_mountp, r->un_mountp)); 6187 } 6188 6189 /* 6190 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6191 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6192 * and unmount it appropriately. 6193 */ 6194 static int 6195 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6196 { 6197 zfs_handle_t *zhp; 6198 int ret = 0; 6199 struct stat64 statbuf; 6200 struct extmnttab entry; 6201 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6202 ino_t path_inode; 6203 6204 /* 6205 * Search for the path in /etc/mnttab. Rather than looking for the 6206 * specific path, which can be fooled by non-standard paths (i.e. ".." 6207 * or "//"), we stat() the path and search for the corresponding 6208 * (major,minor) device pair. 6209 */ 6210 if (stat64(path, &statbuf) != 0) { 6211 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6212 cmdname, path, strerror(errno)); 6213 return (1); 6214 } 6215 path_inode = statbuf.st_ino; 6216 6217 /* 6218 * Search for the given (major,minor) pair in the mount table. 6219 */ 6220 rewind(mnttab_file); 6221 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6222 if (entry.mnt_major == major(statbuf.st_dev) && 6223 entry.mnt_minor == minor(statbuf.st_dev)) 6224 break; 6225 } 6226 if (ret != 0) { 6227 if (op == OP_SHARE) { 6228 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6229 "currently mounted\n"), cmdname, path); 6230 return (1); 6231 } 6232 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6233 path); 6234 if ((ret = umount2(path, flags)) != 0) 6235 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6236 strerror(errno)); 6237 return (ret != 0); 6238 } 6239 6240 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6241 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6242 "filesystem\n"), cmdname, path); 6243 return (1); 6244 } 6245 6246 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6247 ZFS_TYPE_FILESYSTEM)) == NULL) 6248 return (1); 6249 6250 ret = 1; 6251 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6252 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6253 cmdname, path, strerror(errno)); 6254 goto out; 6255 } else if (statbuf.st_ino != path_inode) { 6256 (void) fprintf(stderr, gettext("cannot " 6257 "%s '%s': not a mountpoint\n"), cmdname, path); 6258 goto out; 6259 } 6260 6261 if (op == OP_SHARE) { 6262 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6263 char smbshare_prop[ZFS_MAXPROPLEN]; 6264 6265 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6266 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6267 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6268 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6269 6270 if (strcmp(nfs_mnt_prop, "off") == 0 && 6271 strcmp(smbshare_prop, "off") == 0) { 6272 (void) fprintf(stderr, gettext("cannot unshare " 6273 "'%s': legacy share\n"), path); 6274 (void) fprintf(stderr, gettext("use " 6275 "unshare(1M) to unshare this filesystem\n")); 6276 } else if (!zfs_is_shared(zhp)) { 6277 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6278 "not currently shared\n"), path); 6279 } else { 6280 ret = zfs_unshareall_bypath(zhp, path); 6281 } 6282 } else { 6283 char mtpt_prop[ZFS_MAXPROPLEN]; 6284 6285 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6286 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6287 6288 if (is_manual) { 6289 ret = zfs_unmount(zhp, NULL, flags); 6290 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6291 (void) fprintf(stderr, gettext("cannot unmount " 6292 "'%s': legacy mountpoint\n"), 6293 zfs_get_name(zhp)); 6294 (void) fprintf(stderr, gettext("use umount(1M) " 6295 "to unmount this filesystem\n")); 6296 } else { 6297 ret = zfs_unmountall(zhp, flags); 6298 } 6299 } 6300 6301 out: 6302 zfs_close(zhp); 6303 6304 return (ret != 0); 6305 } 6306 6307 /* 6308 * Generic callback for unsharing or unmounting a filesystem. 6309 */ 6310 static int 6311 unshare_unmount(int op, int argc, char **argv) 6312 { 6313 int do_all = 0; 6314 int flags = 0; 6315 int ret = 0; 6316 int c; 6317 zfs_handle_t *zhp; 6318 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6319 char sharesmb[ZFS_MAXPROPLEN]; 6320 6321 /* check options */ 6322 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6323 switch (c) { 6324 case 'a': 6325 do_all = 1; 6326 break; 6327 case 'f': 6328 flags = MS_FORCE; 6329 break; 6330 case '?': 6331 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6332 optopt); 6333 usage(B_FALSE); 6334 } 6335 } 6336 6337 argc -= optind; 6338 argv += optind; 6339 6340 if (do_all) { 6341 /* 6342 * We could make use of zfs_for_each() to walk all datasets in 6343 * the system, but this would be very inefficient, especially 6344 * since we would have to linearly search /etc/mnttab for each 6345 * one. Instead, do one pass through /etc/mnttab looking for 6346 * zfs entries and call zfs_unmount() for each one. 6347 * 6348 * Things get a little tricky if the administrator has created 6349 * mountpoints beneath other ZFS filesystems. In this case, we 6350 * have to unmount the deepest filesystems first. To accomplish 6351 * this, we place all the mountpoints in an AVL tree sorted by 6352 * the special type (dataset name), and walk the result in 6353 * reverse to make sure to get any snapshots first. 6354 */ 6355 struct mnttab entry; 6356 uu_avl_pool_t *pool; 6357 uu_avl_t *tree = NULL; 6358 unshare_unmount_node_t *node; 6359 uu_avl_index_t idx; 6360 uu_avl_walk_t *walk; 6361 6362 if (argc != 0) { 6363 (void) fprintf(stderr, gettext("too many arguments\n")); 6364 usage(B_FALSE); 6365 } 6366 6367 if (((pool = uu_avl_pool_create("unmount_pool", 6368 sizeof (unshare_unmount_node_t), 6369 offsetof(unshare_unmount_node_t, un_avlnode), 6370 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6371 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6372 nomem(); 6373 6374 rewind(mnttab_file); 6375 while (getmntent(mnttab_file, &entry) == 0) { 6376 6377 /* ignore non-ZFS entries */ 6378 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6379 continue; 6380 6381 /* ignore snapshots */ 6382 if (strchr(entry.mnt_special, '@') != NULL) 6383 continue; 6384 6385 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6386 ZFS_TYPE_FILESYSTEM)) == NULL) { 6387 ret = 1; 6388 continue; 6389 } 6390 6391 /* 6392 * Ignore datasets that are excluded/restricted by 6393 * parent pool name. 6394 */ 6395 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6396 zfs_close(zhp); 6397 continue; 6398 } 6399 6400 switch (op) { 6401 case OP_SHARE: 6402 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6403 nfs_mnt_prop, 6404 sizeof (nfs_mnt_prop), 6405 NULL, NULL, 0, B_FALSE) == 0); 6406 if (strcmp(nfs_mnt_prop, "off") != 0) 6407 break; 6408 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6409 nfs_mnt_prop, 6410 sizeof (nfs_mnt_prop), 6411 NULL, NULL, 0, B_FALSE) == 0); 6412 if (strcmp(nfs_mnt_prop, "off") == 0) 6413 continue; 6414 break; 6415 case OP_MOUNT: 6416 /* Ignore legacy mounts */ 6417 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6418 nfs_mnt_prop, 6419 sizeof (nfs_mnt_prop), 6420 NULL, NULL, 0, B_FALSE) == 0); 6421 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6422 continue; 6423 /* Ignore canmount=noauto mounts */ 6424 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6425 ZFS_CANMOUNT_NOAUTO) 6426 continue; 6427 default: 6428 break; 6429 } 6430 6431 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6432 node->un_zhp = zhp; 6433 node->un_mountp = safe_strdup(entry.mnt_mountp); 6434 6435 uu_avl_node_init(node, &node->un_avlnode, pool); 6436 6437 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6438 uu_avl_insert(tree, node, idx); 6439 } else { 6440 zfs_close(node->un_zhp); 6441 free(node->un_mountp); 6442 free(node); 6443 } 6444 } 6445 6446 /* 6447 * Walk the AVL tree in reverse, unmounting each filesystem and 6448 * removing it from the AVL tree in the process. 6449 */ 6450 if ((walk = uu_avl_walk_start(tree, 6451 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6452 nomem(); 6453 6454 while ((node = uu_avl_walk_next(walk)) != NULL) { 6455 uu_avl_remove(tree, node); 6456 6457 switch (op) { 6458 case OP_SHARE: 6459 if (zfs_unshareall_bypath(node->un_zhp, 6460 node->un_mountp) != 0) 6461 ret = 1; 6462 break; 6463 6464 case OP_MOUNT: 6465 if (zfs_unmount(node->un_zhp, 6466 node->un_mountp, flags) != 0) 6467 ret = 1; 6468 break; 6469 } 6470 6471 zfs_close(node->un_zhp); 6472 free(node->un_mountp); 6473 free(node); 6474 } 6475 6476 uu_avl_walk_end(walk); 6477 uu_avl_destroy(tree); 6478 uu_avl_pool_destroy(pool); 6479 6480 } else { 6481 if (argc != 1) { 6482 if (argc == 0) 6483 (void) fprintf(stderr, 6484 gettext("missing filesystem argument\n")); 6485 else 6486 (void) fprintf(stderr, 6487 gettext("too many arguments\n")); 6488 usage(B_FALSE); 6489 } 6490 6491 /* 6492 * We have an argument, but it may be a full path or a ZFS 6493 * filesystem. Pass full paths off to unmount_path() (shared by 6494 * manual_unmount), otherwise open the filesystem and pass to 6495 * zfs_unmount(). 6496 */ 6497 if (argv[0][0] == '/') 6498 return (unshare_unmount_path(op, argv[0], 6499 flags, B_FALSE)); 6500 6501 if ((zhp = zfs_open(g_zfs, argv[0], 6502 ZFS_TYPE_FILESYSTEM)) == NULL) 6503 return (1); 6504 6505 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6506 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6507 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6508 NULL, 0, B_FALSE) == 0); 6509 6510 switch (op) { 6511 case OP_SHARE: 6512 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6513 nfs_mnt_prop, 6514 sizeof (nfs_mnt_prop), 6515 NULL, NULL, 0, B_FALSE) == 0); 6516 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6517 sharesmb, sizeof (sharesmb), NULL, NULL, 6518 0, B_FALSE) == 0); 6519 6520 if (strcmp(nfs_mnt_prop, "off") == 0 && 6521 strcmp(sharesmb, "off") == 0) { 6522 (void) fprintf(stderr, gettext("cannot " 6523 "unshare '%s': legacy share\n"), 6524 zfs_get_name(zhp)); 6525 (void) fprintf(stderr, gettext("use " 6526 "unshare(1M) to unshare this " 6527 "filesystem\n")); 6528 ret = 1; 6529 } else if (!zfs_is_shared(zhp)) { 6530 (void) fprintf(stderr, gettext("cannot " 6531 "unshare '%s': not currently " 6532 "shared\n"), zfs_get_name(zhp)); 6533 ret = 1; 6534 } else if (zfs_unshareall(zhp) != 0) { 6535 ret = 1; 6536 } 6537 break; 6538 6539 case OP_MOUNT: 6540 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6541 (void) fprintf(stderr, gettext("cannot " 6542 "unmount '%s': legacy " 6543 "mountpoint\n"), zfs_get_name(zhp)); 6544 (void) fprintf(stderr, gettext("use " 6545 "umount(1M) to unmount this " 6546 "filesystem\n")); 6547 ret = 1; 6548 } else if (!zfs_is_mounted(zhp, NULL)) { 6549 (void) fprintf(stderr, gettext("cannot " 6550 "unmount '%s': not currently " 6551 "mounted\n"), 6552 zfs_get_name(zhp)); 6553 ret = 1; 6554 } else if (zfs_unmountall(zhp, flags) != 0) { 6555 ret = 1; 6556 } 6557 break; 6558 } 6559 6560 zfs_close(zhp); 6561 } 6562 6563 return (ret); 6564 } 6565 6566 /* 6567 * zfs unmount -a 6568 * zfs unmount filesystem 6569 * 6570 * Unmount all filesystems, or a specific ZFS filesystem. 6571 */ 6572 static int 6573 zfs_do_unmount(int argc, char **argv) 6574 { 6575 return (unshare_unmount(OP_MOUNT, argc, argv)); 6576 } 6577 6578 /* 6579 * zfs unshare -a 6580 * zfs unshare filesystem 6581 * 6582 * Unshare all filesystems, or a specific ZFS filesystem. 6583 */ 6584 static int 6585 zfs_do_unshare(int argc, char **argv) 6586 { 6587 return (unshare_unmount(OP_SHARE, argc, argv)); 6588 } 6589 6590 /* 6591 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6592 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6593 */ 6594 static int 6595 manual_mount(int argc, char **argv) 6596 { 6597 zfs_handle_t *zhp; 6598 char mountpoint[ZFS_MAXPROPLEN]; 6599 char mntopts[MNT_LINE_MAX] = { '\0' }; 6600 int ret = 0; 6601 int c; 6602 int flags = 0; 6603 char *dataset, *path; 6604 6605 /* check options */ 6606 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6607 switch (c) { 6608 case 'o': 6609 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6610 break; 6611 case 'O': 6612 flags |= MS_OVERLAY; 6613 break; 6614 case 'm': 6615 flags |= MS_NOMNTTAB; 6616 break; 6617 case ':': 6618 (void) fprintf(stderr, gettext("missing argument for " 6619 "'%c' option\n"), optopt); 6620 usage(B_FALSE); 6621 break; 6622 case '?': 6623 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6624 optopt); 6625 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6626 "<path>\n")); 6627 return (2); 6628 } 6629 } 6630 6631 argc -= optind; 6632 argv += optind; 6633 6634 /* check that we only have two arguments */ 6635 if (argc != 2) { 6636 if (argc == 0) 6637 (void) fprintf(stderr, gettext("missing dataset " 6638 "argument\n")); 6639 else if (argc == 1) 6640 (void) fprintf(stderr, 6641 gettext("missing mountpoint argument\n")); 6642 else 6643 (void) fprintf(stderr, gettext("too many arguments\n")); 6644 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6645 return (2); 6646 } 6647 6648 dataset = argv[0]; 6649 path = argv[1]; 6650 6651 /* try to open the dataset */ 6652 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6653 return (1); 6654 6655 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6656 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6657 6658 /* check for legacy mountpoint and complain appropriately */ 6659 ret = 0; 6660 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6661 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6662 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6663 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6664 strerror(errno)); 6665 ret = 1; 6666 } 6667 } else { 6668 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6669 "mounted using 'mount -F zfs'\n"), dataset); 6670 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6671 "instead.\n"), path); 6672 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6673 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6674 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6675 "information.\n")); 6676 ret = 1; 6677 } 6678 6679 return (ret); 6680 } 6681 6682 /* 6683 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6684 * unmounts of non-legacy filesystems, as this is the dominant administrative 6685 * interface. 6686 */ 6687 static int 6688 manual_unmount(int argc, char **argv) 6689 { 6690 int flags = 0; 6691 int c; 6692 6693 /* check options */ 6694 while ((c = getopt(argc, argv, "f")) != -1) { 6695 switch (c) { 6696 case 'f': 6697 flags = MS_FORCE; 6698 break; 6699 case '?': 6700 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6701 optopt); 6702 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6703 "<path>\n")); 6704 return (2); 6705 } 6706 } 6707 6708 argc -= optind; 6709 argv += optind; 6710 6711 /* check arguments */ 6712 if (argc != 1) { 6713 if (argc == 0) 6714 (void) fprintf(stderr, gettext("missing path " 6715 "argument\n")); 6716 else 6717 (void) fprintf(stderr, gettext("too many arguments\n")); 6718 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6719 return (2); 6720 } 6721 6722 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6723 } 6724 6725 static int 6726 find_command_idx(char *command, int *idx) 6727 { 6728 int i; 6729 6730 for (i = 0; i < NCOMMAND; i++) { 6731 if (command_table[i].name == NULL) 6732 continue; 6733 6734 if (strcmp(command, command_table[i].name) == 0) { 6735 *idx = i; 6736 return (0); 6737 } 6738 } 6739 return (1); 6740 } 6741 6742 static int 6743 zfs_do_diff(int argc, char **argv) 6744 { 6745 zfs_handle_t *zhp; 6746 int flags = 0; 6747 char *tosnap = NULL; 6748 char *fromsnap = NULL; 6749 char *atp, *copy; 6750 int err = 0; 6751 int c; 6752 6753 while ((c = getopt(argc, argv, "FHt")) != -1) { 6754 switch (c) { 6755 case 'F': 6756 flags |= ZFS_DIFF_CLASSIFY; 6757 break; 6758 case 'H': 6759 flags |= ZFS_DIFF_PARSEABLE; 6760 break; 6761 case 't': 6762 flags |= ZFS_DIFF_TIMESTAMP; 6763 break; 6764 default: 6765 (void) fprintf(stderr, 6766 gettext("invalid option '%c'\n"), optopt); 6767 usage(B_FALSE); 6768 } 6769 } 6770 6771 argc -= optind; 6772 argv += optind; 6773 6774 if (argc < 1) { 6775 (void) fprintf(stderr, 6776 gettext("must provide at least one snapshot name\n")); 6777 usage(B_FALSE); 6778 } 6779 6780 if (argc > 2) { 6781 (void) fprintf(stderr, gettext("too many arguments\n")); 6782 usage(B_FALSE); 6783 } 6784 6785 fromsnap = argv[0]; 6786 tosnap = (argc == 2) ? argv[1] : NULL; 6787 6788 copy = NULL; 6789 if (*fromsnap != '@') 6790 copy = strdup(fromsnap); 6791 else if (tosnap) 6792 copy = strdup(tosnap); 6793 if (copy == NULL) 6794 usage(B_FALSE); 6795 6796 if ((atp = strchr(copy, '@')) != NULL) 6797 *atp = '\0'; 6798 6799 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6800 return (1); 6801 6802 free(copy); 6803 6804 /* 6805 * Ignore SIGPIPE so that the library can give us 6806 * information on any failure 6807 */ 6808 (void) sigignore(SIGPIPE); 6809 6810 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6811 6812 zfs_close(zhp); 6813 6814 return (err != 0); 6815 } 6816 6817 /* 6818 * zfs bookmark <fs@snap> <fs#bmark> 6819 * 6820 * Creates a bookmark with the given name from the given snapshot. 6821 */ 6822 static int 6823 zfs_do_bookmark(int argc, char **argv) 6824 { 6825 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 6826 zfs_handle_t *zhp; 6827 nvlist_t *nvl; 6828 int ret = 0; 6829 int c; 6830 6831 /* check options */ 6832 while ((c = getopt(argc, argv, "")) != -1) { 6833 switch (c) { 6834 case '?': 6835 (void) fprintf(stderr, 6836 gettext("invalid option '%c'\n"), optopt); 6837 goto usage; 6838 } 6839 } 6840 6841 argc -= optind; 6842 argv += optind; 6843 6844 /* check number of arguments */ 6845 if (argc < 1) { 6846 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6847 goto usage; 6848 } 6849 if (argc < 2) { 6850 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6851 goto usage; 6852 } 6853 6854 if (strchr(argv[1], '#') == NULL) { 6855 (void) fprintf(stderr, 6856 gettext("invalid bookmark name '%s' -- " 6857 "must contain a '#'\n"), argv[1]); 6858 goto usage; 6859 } 6860 6861 if (argv[0][0] == '@') { 6862 /* 6863 * Snapshot name begins with @. 6864 * Default to same fs as bookmark. 6865 */ 6866 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6867 *strchr(snapname, '#') = '\0'; 6868 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6869 } else { 6870 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6871 } 6872 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6873 if (zhp == NULL) 6874 goto usage; 6875 zfs_close(zhp); 6876 6877 6878 nvl = fnvlist_alloc(); 6879 fnvlist_add_string(nvl, argv[1], snapname); 6880 ret = lzc_bookmark(nvl, NULL); 6881 fnvlist_free(nvl); 6882 6883 if (ret != 0) { 6884 const char *err_msg; 6885 char errbuf[1024]; 6886 6887 (void) snprintf(errbuf, sizeof (errbuf), 6888 dgettext(TEXT_DOMAIN, 6889 "cannot create bookmark '%s'"), argv[1]); 6890 6891 switch (ret) { 6892 case EXDEV: 6893 err_msg = "bookmark is in a different pool"; 6894 break; 6895 case EEXIST: 6896 err_msg = "bookmark exists"; 6897 break; 6898 case EINVAL: 6899 err_msg = "invalid argument"; 6900 break; 6901 case ENOTSUP: 6902 err_msg = "bookmark feature not enabled"; 6903 break; 6904 case ENOSPC: 6905 err_msg = "out of space"; 6906 break; 6907 default: 6908 err_msg = "unknown error"; 6909 break; 6910 } 6911 (void) fprintf(stderr, "%s: %s\n", errbuf, 6912 dgettext(TEXT_DOMAIN, err_msg)); 6913 } 6914 6915 return (ret != 0); 6916 6917 usage: 6918 usage(B_FALSE); 6919 return (-1); 6920 } 6921 6922 int 6923 main(int argc, char **argv) 6924 { 6925 int ret = 0; 6926 int i; 6927 char *progname; 6928 char *cmdname; 6929 6930 (void) setlocale(LC_ALL, ""); 6931 (void) textdomain(TEXT_DOMAIN); 6932 6933 opterr = 0; 6934 6935 if ((g_zfs = libzfs_init()) == NULL) { 6936 (void) fprintf(stderr, gettext("internal error: failed to " 6937 "initialize ZFS library\n")); 6938 return (1); 6939 } 6940 6941 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6942 6943 libzfs_print_on_error(g_zfs, B_TRUE); 6944 6945 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6946 (void) fprintf(stderr, gettext("internal error: unable to " 6947 "open %s\n"), MNTTAB); 6948 return (1); 6949 } 6950 6951 /* 6952 * This command also doubles as the /etc/fs mount and unmount program. 6953 * Determine if we should take this behavior based on argv[0]. 6954 */ 6955 progname = basename(argv[0]); 6956 if (strcmp(progname, "mount") == 0) { 6957 ret = manual_mount(argc, argv); 6958 } else if (strcmp(progname, "umount") == 0) { 6959 ret = manual_unmount(argc, argv); 6960 } else { 6961 /* 6962 * Make sure the user has specified some command. 6963 */ 6964 if (argc < 2) { 6965 (void) fprintf(stderr, gettext("missing command\n")); 6966 usage(B_FALSE); 6967 } 6968 6969 cmdname = argv[1]; 6970 6971 /* 6972 * The 'umount' command is an alias for 'unmount' 6973 */ 6974 if (strcmp(cmdname, "umount") == 0) 6975 cmdname = "unmount"; 6976 6977 /* 6978 * The 'recv' command is an alias for 'receive' 6979 */ 6980 if (strcmp(cmdname, "recv") == 0) 6981 cmdname = "receive"; 6982 6983 /* 6984 * The 'snap' command is an alias for 'snapshot' 6985 */ 6986 if (strcmp(cmdname, "snap") == 0) 6987 cmdname = "snapshot"; 6988 6989 /* 6990 * Special case '-?' 6991 */ 6992 if (strcmp(cmdname, "-?") == 0) 6993 usage(B_TRUE); 6994 6995 /* 6996 * Run the appropriate command. 6997 */ 6998 libzfs_mnttab_cache(g_zfs, B_TRUE); 6999 if (find_command_idx(cmdname, &i) == 0) { 7000 current_command = &command_table[i]; 7001 ret = command_table[i].func(argc - 1, argv + 1); 7002 } else if (strchr(cmdname, '=') != NULL) { 7003 verify(find_command_idx("set", &i) == 0); 7004 current_command = &command_table[i]; 7005 ret = command_table[i].func(argc, argv); 7006 } else { 7007 (void) fprintf(stderr, gettext("unrecognized " 7008 "command '%s'\n"), cmdname); 7009 usage(B_FALSE); 7010 } 7011 libzfs_mnttab_cache(g_zfs, B_FALSE); 7012 } 7013 7014 (void) fclose(mnttab_file); 7015 7016 if (ret == 0 && log_history) 7017 (void) zpool_log_history(g_zfs, history_str); 7018 7019 libzfs_fini(g_zfs); 7020 7021 /* 7022 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7023 * for the purposes of running ::findleaks. 7024 */ 7025 if (getenv("ZFS_ABORT") != NULL) { 7026 (void) printf("dumping core by request\n"); 7027 abort(); 7028 } 7029 7030 return (ret); 7031 } 7032