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 <getopt.h> 38 #include <libgen.h> 39 #include <libintl.h> 40 #include <libuutil.h> 41 #include <libnvpair.h> 42 #include <locale.h> 43 #include <stddef.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <strings.h> 47 #include <unistd.h> 48 #include <fcntl.h> 49 #include <zone.h> 50 #include <grp.h> 51 #include <pwd.h> 52 #include <signal.h> 53 #include <sys/list.h> 54 #include <sys/mkdev.h> 55 #include <sys/mntent.h> 56 #include <sys/mnttab.h> 57 #include <sys/mount.h> 58 #include <sys/stat.h> 59 #include <sys/fs/zfs.h> 60 #include <sys/types.h> 61 #include <time.h> 62 63 #include <libzfs.h> 64 #include <libzfs_core.h> 65 #include <zfs_prop.h> 66 #include <zfs_deleg.h> 67 #include <libuutil.h> 68 #include <aclutils.h> 69 #include <directory.h> 70 #include <idmap.h> 71 #include <libshare.h> 72 73 #include "zfs_iter.h" 74 #include "zfs_util.h" 75 #include "zfs_comutil.h" 76 77 libzfs_handle_t *g_zfs; 78 79 static FILE *mnttab_file; 80 static char history_str[HIS_MAX_RECORD_LEN]; 81 static boolean_t log_history = B_TRUE; 82 83 static int zfs_do_clone(int argc, char **argv); 84 static int zfs_do_create(int argc, char **argv); 85 static int zfs_do_destroy(int argc, char **argv); 86 static int zfs_do_get(int argc, char **argv); 87 static int zfs_do_inherit(int argc, char **argv); 88 static int zfs_do_list(int argc, char **argv); 89 static int zfs_do_mount(int argc, char **argv); 90 static int zfs_do_rename(int argc, char **argv); 91 static int zfs_do_rollback(int argc, char **argv); 92 static int zfs_do_set(int argc, char **argv); 93 static int zfs_do_upgrade(int argc, char **argv); 94 static int zfs_do_snapshot(int argc, char **argv); 95 static int zfs_do_unmount(int argc, char **argv); 96 static int zfs_do_share(int argc, char **argv); 97 static int zfs_do_unshare(int argc, char **argv); 98 static int zfs_do_send(int argc, char **argv); 99 static int zfs_do_receive(int argc, char **argv); 100 static int zfs_do_promote(int argc, char **argv); 101 static int zfs_do_userspace(int argc, char **argv); 102 static int zfs_do_allow(int argc, char **argv); 103 static int zfs_do_unallow(int argc, char **argv); 104 static int zfs_do_hold(int argc, char **argv); 105 static int zfs_do_holds(int argc, char **argv); 106 static int zfs_do_release(int argc, char **argv); 107 static int zfs_do_diff(int argc, char **argv); 108 static int zfs_do_bookmark(int argc, char **argv); 109 110 /* 111 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 112 */ 113 114 #ifdef DEBUG 115 const char * 116 _umem_debug_init(void) 117 { 118 return ("default,verbose"); /* $UMEM_DEBUG setting */ 119 } 120 121 const char * 122 _umem_logging_init(void) 123 { 124 return ("fail,contents"); /* $UMEM_LOGGING setting */ 125 } 126 #endif 127 128 typedef enum { 129 HELP_CLONE, 130 HELP_CREATE, 131 HELP_DESTROY, 132 HELP_GET, 133 HELP_INHERIT, 134 HELP_UPGRADE, 135 HELP_LIST, 136 HELP_MOUNT, 137 HELP_PROMOTE, 138 HELP_RECEIVE, 139 HELP_RENAME, 140 HELP_ROLLBACK, 141 HELP_SEND, 142 HELP_SET, 143 HELP_SHARE, 144 HELP_SNAPSHOT, 145 HELP_UNMOUNT, 146 HELP_UNSHARE, 147 HELP_ALLOW, 148 HELP_UNALLOW, 149 HELP_USERSPACE, 150 HELP_GROUPSPACE, 151 HELP_HOLD, 152 HELP_HOLDS, 153 HELP_RELEASE, 154 HELP_DIFF, 155 HELP_BOOKMARK, 156 } zfs_help_t; 157 158 typedef struct zfs_command { 159 const char *name; 160 int (*func)(int argc, char **argv); 161 zfs_help_t usage; 162 } zfs_command_t; 163 164 /* 165 * Master command table. Each ZFS command has a name, associated function, and 166 * usage message. The usage messages need to be internationalized, so we have 167 * to have a function to return the usage message based on a command index. 168 * 169 * These commands are organized according to how they are displayed in the usage 170 * message. An empty command (one with a NULL name) indicates an empty line in 171 * the generic usage message. 172 */ 173 static zfs_command_t command_table[] = { 174 { "create", zfs_do_create, HELP_CREATE }, 175 { "destroy", zfs_do_destroy, HELP_DESTROY }, 176 { NULL }, 177 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 178 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 179 { "clone", zfs_do_clone, HELP_CLONE }, 180 { "promote", zfs_do_promote, HELP_PROMOTE }, 181 { "rename", zfs_do_rename, HELP_RENAME }, 182 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 183 { NULL }, 184 { "list", zfs_do_list, HELP_LIST }, 185 { NULL }, 186 { "set", zfs_do_set, HELP_SET }, 187 { "get", zfs_do_get, HELP_GET }, 188 { "inherit", zfs_do_inherit, HELP_INHERIT }, 189 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 190 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 191 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 192 { NULL }, 193 { "mount", zfs_do_mount, HELP_MOUNT }, 194 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 195 { "share", zfs_do_share, HELP_SHARE }, 196 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 197 { NULL }, 198 { "send", zfs_do_send, HELP_SEND }, 199 { "receive", zfs_do_receive, HELP_RECEIVE }, 200 { NULL }, 201 { "allow", zfs_do_allow, HELP_ALLOW }, 202 { NULL }, 203 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 204 { NULL }, 205 { "hold", zfs_do_hold, HELP_HOLD }, 206 { "holds", zfs_do_holds, HELP_HOLDS }, 207 { "release", zfs_do_release, HELP_RELEASE }, 208 { "diff", zfs_do_diff, HELP_DIFF }, 209 }; 210 211 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 212 213 zfs_command_t *current_command; 214 215 static const char * 216 get_usage(zfs_help_t idx) 217 { 218 switch (idx) { 219 case HELP_CLONE: 220 return (gettext("\tclone [-p] [-o property=value] ... " 221 "<snapshot> <filesystem|volume>\n")); 222 case HELP_CREATE: 223 return (gettext("\tcreate [-p] [-o property=value] ... " 224 "<filesystem>\n" 225 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 226 "-V <size> <volume>\n")); 227 case HELP_DESTROY: 228 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 229 "\tdestroy [-dnpRrv] " 230 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 231 "\tdestroy <filesystem|volume>#<bookmark>\n")); 232 case HELP_GET: 233 return (gettext("\tget [-rHp] [-d max] " 234 "[-o \"all\" | field[,...]]\n" 235 "\t [-t type[,...]] [-s source[,...]]\n" 236 "\t <\"all\" | property[,...]> " 237 "[filesystem|volume|snapshot|bookmark] ...\n")); 238 case HELP_INHERIT: 239 return (gettext("\tinherit [-rS] <property> " 240 "<filesystem|volume|snapshot> ...\n")); 241 case HELP_UPGRADE: 242 return (gettext("\tupgrade [-v]\n" 243 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 244 case HELP_LIST: 245 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 246 "[-s property]...\n\t [-S property]... [-t type[,...]] " 247 "[filesystem|volume|snapshot] ...\n")); 248 case HELP_MOUNT: 249 return (gettext("\tmount\n" 250 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 251 case HELP_PROMOTE: 252 return (gettext("\tpromote <clone-filesystem>\n")); 253 case HELP_RECEIVE: 254 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 255 "snapshot>\n" 256 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 257 "<filesystem>\n" 258 "\treceive -A <filesystem|volume>\n")); 259 case HELP_RENAME: 260 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 261 "<filesystem|volume|snapshot>\n" 262 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 263 "\trename -r <snapshot> <snapshot>\n")); 264 case HELP_ROLLBACK: 265 return (gettext("\trollback [-rRf] <snapshot>\n")); 266 case HELP_SEND: 267 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] " 268 "<snapshot>\n" 269 "\tsend [-Le] [-i snapshot|bookmark] " 270 "<filesystem|volume|snapshot>\n" 271 "\tsend [-nvPe] -t <receive_resume_token>\n")); 272 case HELP_SET: 273 return (gettext("\tset <property=value> ... " 274 "<filesystem|volume|snapshot> ...\n")); 275 case HELP_SHARE: 276 return (gettext("\tshare <-a | filesystem>\n")); 277 case HELP_SNAPSHOT: 278 return (gettext("\tsnapshot [-r] [-o property=value] ... " 279 "<filesystem|volume>@<snap> ...\n")); 280 case HELP_UNMOUNT: 281 return (gettext("\tunmount [-f] " 282 "<-a | filesystem|mountpoint>\n")); 283 case HELP_UNSHARE: 284 return (gettext("\tunshare " 285 "<-a | filesystem|mountpoint>\n")); 286 case HELP_ALLOW: 287 return (gettext("\tallow <filesystem|volume>\n" 288 "\tallow [-ldug] " 289 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 290 "\t <filesystem|volume>\n" 291 "\tallow [-ld] -e <perm|@setname>[,...] " 292 "<filesystem|volume>\n" 293 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 294 "\tallow -s @setname <perm|@setname>[,...] " 295 "<filesystem|volume>\n")); 296 case HELP_UNALLOW: 297 return (gettext("\tunallow [-rldug] " 298 "<\"everyone\"|user|group>[,...]\n" 299 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 300 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 301 "<filesystem|volume>\n" 302 "\tunallow [-r] -c [<perm|@setname>[,...]] " 303 "<filesystem|volume>\n" 304 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 305 "<filesystem|volume>\n")); 306 case HELP_USERSPACE: 307 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 308 "[-s field] ...\n" 309 "\t [-S field] ... [-t type[,...]] " 310 "<filesystem|snapshot>\n")); 311 case HELP_GROUPSPACE: 312 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 313 "[-s field] ...\n" 314 "\t [-S field] ... [-t type[,...]] " 315 "<filesystem|snapshot>\n")); 316 case HELP_HOLD: 317 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 318 case HELP_HOLDS: 319 return (gettext("\tholds [-r] <snapshot> ...\n")); 320 case HELP_RELEASE: 321 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 322 case HELP_DIFF: 323 return (gettext("\tdiff [-FHt] <snapshot> " 324 "[snapshot|filesystem]\n")); 325 case HELP_BOOKMARK: 326 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 327 } 328 329 abort(); 330 /* NOTREACHED */ 331 } 332 333 void 334 nomem(void) 335 { 336 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 337 exit(1); 338 } 339 340 /* 341 * Utility function to guarantee malloc() success. 342 */ 343 344 void * 345 safe_malloc(size_t size) 346 { 347 void *data; 348 349 if ((data = calloc(1, size)) == NULL) 350 nomem(); 351 352 return (data); 353 } 354 355 static char * 356 safe_strdup(char *str) 357 { 358 char *dupstr = strdup(str); 359 360 if (dupstr == NULL) 361 nomem(); 362 363 return (dupstr); 364 } 365 366 /* 367 * Callback routine that will print out information for each of 368 * the properties. 369 */ 370 static int 371 usage_prop_cb(int prop, void *cb) 372 { 373 FILE *fp = cb; 374 375 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 376 377 if (zfs_prop_readonly(prop)) 378 (void) fprintf(fp, " NO "); 379 else 380 (void) fprintf(fp, "YES "); 381 382 if (zfs_prop_inheritable(prop)) 383 (void) fprintf(fp, " YES "); 384 else 385 (void) fprintf(fp, " NO "); 386 387 if (zfs_prop_values(prop) == NULL) 388 (void) fprintf(fp, "-\n"); 389 else 390 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 391 392 return (ZPROP_CONT); 393 } 394 395 /* 396 * Display usage message. If we're inside a command, display only the usage for 397 * that command. Otherwise, iterate over the entire command table and display 398 * a complete usage message. 399 */ 400 static void 401 usage(boolean_t requested) 402 { 403 int i; 404 boolean_t show_properties = B_FALSE; 405 FILE *fp = requested ? stdout : stderr; 406 407 if (current_command == NULL) { 408 409 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 410 (void) fprintf(fp, 411 gettext("where 'command' is one of the following:\n\n")); 412 413 for (i = 0; i < NCOMMAND; i++) { 414 if (command_table[i].name == NULL) 415 (void) fprintf(fp, "\n"); 416 else 417 (void) fprintf(fp, "%s", 418 get_usage(command_table[i].usage)); 419 } 420 421 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 422 "pool/[dataset/]*dataset[@name]\n")); 423 } else { 424 (void) fprintf(fp, gettext("usage:\n")); 425 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 426 } 427 428 if (current_command != NULL && 429 (strcmp(current_command->name, "set") == 0 || 430 strcmp(current_command->name, "get") == 0 || 431 strcmp(current_command->name, "inherit") == 0 || 432 strcmp(current_command->name, "list") == 0)) 433 show_properties = B_TRUE; 434 435 if (show_properties) { 436 (void) fprintf(fp, 437 gettext("\nThe following properties are supported:\n")); 438 439 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 440 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 441 442 /* Iterate over all properties */ 443 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 444 ZFS_TYPE_DATASET); 445 446 (void) fprintf(fp, "\t%-15s ", "userused@..."); 447 (void) fprintf(fp, " NO NO <size>\n"); 448 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 449 (void) fprintf(fp, " NO NO <size>\n"); 450 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 451 (void) fprintf(fp, "YES NO <size> | none\n"); 452 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 453 (void) fprintf(fp, "YES NO <size> | none\n"); 454 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 455 (void) fprintf(fp, " NO NO <size>\n"); 456 457 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 458 "with standard units such as K, M, G, etc.\n")); 459 (void) fprintf(fp, gettext("\nUser-defined properties can " 460 "be specified by using a name containing a colon (:).\n")); 461 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 462 "properties must be appended with\n" 463 "a user or group specifier of one of these forms:\n" 464 " POSIX name (eg: \"matt\")\n" 465 " POSIX id (eg: \"126829\")\n" 466 " SMB name@domain (eg: \"matt@sun\")\n" 467 " SMB SID (eg: \"S-1-234-567-89\")\n")); 468 } else { 469 (void) fprintf(fp, 470 gettext("\nFor the property list, run: %s\n"), 471 "zfs set|get"); 472 (void) fprintf(fp, 473 gettext("\nFor the delegated permission list, run: %s\n"), 474 "zfs allow|unallow"); 475 } 476 477 /* 478 * See comments at end of main(). 479 */ 480 if (getenv("ZFS_ABORT") != NULL) { 481 (void) printf("dumping core by request\n"); 482 abort(); 483 } 484 485 exit(requested ? 0 : 2); 486 } 487 488 /* 489 * Take a property=value argument string and add it to the given nvlist. 490 * Modifies the argument inplace. 491 */ 492 static int 493 parseprop(nvlist_t *props, char *propname) 494 { 495 char *propval, *strval; 496 497 if ((propval = strchr(propname, '=')) == NULL) { 498 (void) fprintf(stderr, gettext("missing " 499 "'=' for property=value argument\n")); 500 return (-1); 501 } 502 *propval = '\0'; 503 propval++; 504 if (nvlist_lookup_string(props, propname, &strval) == 0) { 505 (void) fprintf(stderr, gettext("property '%s' " 506 "specified multiple times\n"), propname); 507 return (-1); 508 } 509 if (nvlist_add_string(props, propname, propval) != 0) 510 nomem(); 511 return (0); 512 } 513 514 static int 515 parse_depth(char *opt, int *flags) 516 { 517 char *tmp; 518 int depth; 519 520 depth = (int)strtol(opt, &tmp, 0); 521 if (*tmp) { 522 (void) fprintf(stderr, 523 gettext("%s is not an integer\n"), optarg); 524 usage(B_FALSE); 525 } 526 if (depth < 0) { 527 (void) fprintf(stderr, 528 gettext("Depth can not be negative.\n")); 529 usage(B_FALSE); 530 } 531 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 532 return (depth); 533 } 534 535 #define PROGRESS_DELAY 2 /* seconds */ 536 537 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"; 538 static time_t pt_begin; 539 static char *pt_header = NULL; 540 static boolean_t pt_shown; 541 542 static void 543 start_progress_timer(void) 544 { 545 pt_begin = time(NULL) + PROGRESS_DELAY; 546 pt_shown = B_FALSE; 547 } 548 549 static void 550 set_progress_header(char *header) 551 { 552 assert(pt_header == NULL); 553 pt_header = safe_strdup(header); 554 if (pt_shown) { 555 (void) printf("%s: ", header); 556 (void) fflush(stdout); 557 } 558 } 559 560 static void 561 update_progress(char *update) 562 { 563 if (!pt_shown && time(NULL) > pt_begin) { 564 int len = strlen(update); 565 566 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 567 pt_reverse); 568 (void) fflush(stdout); 569 pt_shown = B_TRUE; 570 } else if (pt_shown) { 571 int len = strlen(update); 572 573 (void) printf("%s%*.*s", update, len, len, pt_reverse); 574 (void) fflush(stdout); 575 } 576 } 577 578 static void 579 finish_progress(char *done) 580 { 581 if (pt_shown) { 582 (void) printf("%s\n", done); 583 (void) fflush(stdout); 584 } 585 free(pt_header); 586 pt_header = NULL; 587 } 588 589 /* 590 * Check if the dataset is mountable and should be automatically mounted. 591 */ 592 static boolean_t 593 should_auto_mount(zfs_handle_t *zhp) 594 { 595 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 596 return (B_FALSE); 597 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 598 } 599 600 /* 601 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 602 * 603 * Given an existing dataset, create a writable copy whose initial contents 604 * are the same as the source. The newly created dataset maintains a 605 * dependency on the original; the original cannot be destroyed so long as 606 * the clone exists. 607 * 608 * The '-p' flag creates all the non-existing ancestors of the target first. 609 */ 610 static int 611 zfs_do_clone(int argc, char **argv) 612 { 613 zfs_handle_t *zhp = NULL; 614 boolean_t parents = B_FALSE; 615 nvlist_t *props; 616 int ret = 0; 617 int c; 618 619 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 620 nomem(); 621 622 /* check options */ 623 while ((c = getopt(argc, argv, "o:p")) != -1) { 624 switch (c) { 625 case 'o': 626 if (parseprop(props, optarg) != 0) 627 return (1); 628 break; 629 case 'p': 630 parents = B_TRUE; 631 break; 632 case '?': 633 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 634 optopt); 635 goto usage; 636 } 637 } 638 639 argc -= optind; 640 argv += optind; 641 642 /* check number of arguments */ 643 if (argc < 1) { 644 (void) fprintf(stderr, gettext("missing source dataset " 645 "argument\n")); 646 goto usage; 647 } 648 if (argc < 2) { 649 (void) fprintf(stderr, gettext("missing target dataset " 650 "argument\n")); 651 goto usage; 652 } 653 if (argc > 2) { 654 (void) fprintf(stderr, gettext("too many arguments\n")); 655 goto usage; 656 } 657 658 /* open the source dataset */ 659 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 660 return (1); 661 662 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 663 ZFS_TYPE_VOLUME)) { 664 /* 665 * Now create the ancestors of the target dataset. If the 666 * target already exists and '-p' option was used we should not 667 * complain. 668 */ 669 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 670 ZFS_TYPE_VOLUME)) 671 return (0); 672 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 673 return (1); 674 } 675 676 /* pass to libzfs */ 677 ret = zfs_clone(zhp, argv[1], props); 678 679 /* create the mountpoint if necessary */ 680 if (ret == 0) { 681 zfs_handle_t *clone; 682 683 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 684 if (clone != NULL) { 685 /* 686 * If the user doesn't want the dataset 687 * automatically mounted, then skip the mount/share 688 * step. 689 */ 690 if (should_auto_mount(clone)) { 691 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 692 (void) fprintf(stderr, gettext("clone " 693 "successfully created, " 694 "but not mounted\n")); 695 } else if ((ret = zfs_share(clone)) != 0) { 696 (void) fprintf(stderr, gettext("clone " 697 "successfully created, " 698 "but not shared\n")); 699 } 700 } 701 zfs_close(clone); 702 } 703 } 704 705 zfs_close(zhp); 706 nvlist_free(props); 707 708 return (!!ret); 709 710 usage: 711 if (zhp) 712 zfs_close(zhp); 713 nvlist_free(props); 714 usage(B_FALSE); 715 return (-1); 716 } 717 718 /* 719 * zfs create [-p] [-o prop=value] ... fs 720 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 721 * 722 * Create a new dataset. This command can be used to create filesystems 723 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 724 * For volumes, the user must specify a size to be used. 725 * 726 * The '-s' flag applies only to volumes, and indicates that we should not try 727 * to set the reservation for this volume. By default we set a reservation 728 * equal to the size for any volume. For pools with SPA_VERSION >= 729 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 730 * 731 * The '-p' flag creates all the non-existing ancestors of the target first. 732 */ 733 static int 734 zfs_do_create(int argc, char **argv) 735 { 736 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 737 zfs_handle_t *zhp = NULL; 738 uint64_t volsize = 0; 739 int c; 740 boolean_t noreserve = B_FALSE; 741 boolean_t bflag = B_FALSE; 742 boolean_t parents = B_FALSE; 743 int ret = 1; 744 nvlist_t *props; 745 uint64_t intval; 746 747 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 748 nomem(); 749 750 /* check options */ 751 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 752 switch (c) { 753 case 'V': 754 type = ZFS_TYPE_VOLUME; 755 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 756 (void) fprintf(stderr, gettext("bad volume " 757 "size '%s': %s\n"), optarg, 758 libzfs_error_description(g_zfs)); 759 goto error; 760 } 761 762 if (nvlist_add_uint64(props, 763 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 764 nomem(); 765 volsize = intval; 766 break; 767 case 'p': 768 parents = B_TRUE; 769 break; 770 case 'b': 771 bflag = B_TRUE; 772 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 773 (void) fprintf(stderr, gettext("bad volume " 774 "block size '%s': %s\n"), optarg, 775 libzfs_error_description(g_zfs)); 776 goto error; 777 } 778 779 if (nvlist_add_uint64(props, 780 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 781 intval) != 0) 782 nomem(); 783 break; 784 case 'o': 785 if (parseprop(props, optarg) != 0) 786 goto error; 787 break; 788 case 's': 789 noreserve = B_TRUE; 790 break; 791 case ':': 792 (void) fprintf(stderr, gettext("missing size " 793 "argument\n")); 794 goto badusage; 795 case '?': 796 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 797 optopt); 798 goto badusage; 799 } 800 } 801 802 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 803 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 804 "used when creating a volume\n")); 805 goto badusage; 806 } 807 808 argc -= optind; 809 argv += optind; 810 811 /* check number of arguments */ 812 if (argc == 0) { 813 (void) fprintf(stderr, gettext("missing %s argument\n"), 814 zfs_type_to_name(type)); 815 goto badusage; 816 } 817 if (argc > 1) { 818 (void) fprintf(stderr, gettext("too many arguments\n")); 819 goto badusage; 820 } 821 822 if (type == ZFS_TYPE_VOLUME && !noreserve) { 823 zpool_handle_t *zpool_handle; 824 nvlist_t *real_props = NULL; 825 uint64_t spa_version; 826 char *p; 827 zfs_prop_t resv_prop; 828 char *strval; 829 char msg[1024]; 830 831 if ((p = strchr(argv[0], '/')) != NULL) 832 *p = '\0'; 833 zpool_handle = zpool_open(g_zfs, argv[0]); 834 if (p != NULL) 835 *p = '/'; 836 if (zpool_handle == NULL) 837 goto error; 838 spa_version = zpool_get_prop_int(zpool_handle, 839 ZPOOL_PROP_VERSION, NULL); 840 if (spa_version >= SPA_VERSION_REFRESERVATION) 841 resv_prop = ZFS_PROP_REFRESERVATION; 842 else 843 resv_prop = ZFS_PROP_RESERVATION; 844 845 (void) snprintf(msg, sizeof (msg), 846 gettext("cannot create '%s'"), argv[0]); 847 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 848 props, 0, NULL, zpool_handle, msg)) == NULL) { 849 zpool_close(zpool_handle); 850 goto error; 851 } 852 zpool_close(zpool_handle); 853 854 volsize = zvol_volsize_to_reservation(volsize, real_props); 855 nvlist_free(real_props); 856 857 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 858 &strval) != 0) { 859 if (nvlist_add_uint64(props, 860 zfs_prop_to_name(resv_prop), volsize) != 0) { 861 nvlist_free(props); 862 nomem(); 863 } 864 } 865 } 866 867 if (parents && zfs_name_valid(argv[0], type)) { 868 /* 869 * Now create the ancestors of target dataset. If the target 870 * already exists and '-p' option was used we should not 871 * complain. 872 */ 873 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 874 ret = 0; 875 goto error; 876 } 877 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 878 goto error; 879 } 880 881 /* pass to libzfs */ 882 if (zfs_create(g_zfs, argv[0], type, props) != 0) 883 goto error; 884 885 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 886 goto error; 887 888 ret = 0; 889 890 /* 891 * Mount and/or share the new filesystem as appropriate. We provide a 892 * verbose error message to let the user know that their filesystem was 893 * in fact created, even if we failed to mount or share it. 894 * If the user doesn't want the dataset automatically mounted, 895 * then skip the mount/share step altogether. 896 */ 897 if (should_auto_mount(zhp)) { 898 if (zfs_mount(zhp, NULL, 0) != 0) { 899 (void) fprintf(stderr, gettext("filesystem " 900 "successfully created, but not mounted\n")); 901 ret = 1; 902 } else if (zfs_share(zhp) != 0) { 903 (void) fprintf(stderr, gettext("filesystem " 904 "successfully created, but not shared\n")); 905 ret = 1; 906 } 907 } 908 909 error: 910 if (zhp) 911 zfs_close(zhp); 912 nvlist_free(props); 913 return (ret); 914 badusage: 915 nvlist_free(props); 916 usage(B_FALSE); 917 return (2); 918 } 919 920 /* 921 * zfs destroy [-rRf] <fs, vol> 922 * zfs destroy [-rRd] <snap> 923 * 924 * -r Recursively destroy all children 925 * -R Recursively destroy all dependents, including clones 926 * -f Force unmounting of any dependents 927 * -d If we can't destroy now, mark for deferred destruction 928 * 929 * Destroys the given dataset. By default, it will unmount any filesystems, 930 * and refuse to destroy a dataset that has any dependents. A dependent can 931 * either be a child, or a clone of a child. 932 */ 933 typedef struct destroy_cbdata { 934 boolean_t cb_first; 935 boolean_t cb_force; 936 boolean_t cb_recurse; 937 boolean_t cb_error; 938 boolean_t cb_doclones; 939 zfs_handle_t *cb_target; 940 boolean_t cb_defer_destroy; 941 boolean_t cb_verbose; 942 boolean_t cb_parsable; 943 boolean_t cb_dryrun; 944 nvlist_t *cb_nvl; 945 nvlist_t *cb_batchedsnaps; 946 947 /* first snap in contiguous run */ 948 char *cb_firstsnap; 949 /* previous snap in contiguous run */ 950 char *cb_prevsnap; 951 int64_t cb_snapused; 952 char *cb_snapspec; 953 char *cb_bookmark; 954 } destroy_cbdata_t; 955 956 /* 957 * Check for any dependents based on the '-r' or '-R' flags. 958 */ 959 static int 960 destroy_check_dependent(zfs_handle_t *zhp, void *data) 961 { 962 destroy_cbdata_t *cbp = data; 963 const char *tname = zfs_get_name(cbp->cb_target); 964 const char *name = zfs_get_name(zhp); 965 966 if (strncmp(tname, name, strlen(tname)) == 0 && 967 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 968 /* 969 * This is a direct descendant, not a clone somewhere else in 970 * the hierarchy. 971 */ 972 if (cbp->cb_recurse) 973 goto out; 974 975 if (cbp->cb_first) { 976 (void) fprintf(stderr, gettext("cannot destroy '%s': " 977 "%s has children\n"), 978 zfs_get_name(cbp->cb_target), 979 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 980 (void) fprintf(stderr, gettext("use '-r' to destroy " 981 "the following datasets:\n")); 982 cbp->cb_first = B_FALSE; 983 cbp->cb_error = B_TRUE; 984 } 985 986 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 987 } else { 988 /* 989 * This is a clone. We only want to report this if the '-r' 990 * wasn't specified, or the target is a snapshot. 991 */ 992 if (!cbp->cb_recurse && 993 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 994 goto out; 995 996 if (cbp->cb_first) { 997 (void) fprintf(stderr, gettext("cannot destroy '%s': " 998 "%s has dependent clones\n"), 999 zfs_get_name(cbp->cb_target), 1000 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1001 (void) fprintf(stderr, gettext("use '-R' to destroy " 1002 "the following datasets:\n")); 1003 cbp->cb_first = B_FALSE; 1004 cbp->cb_error = B_TRUE; 1005 cbp->cb_dryrun = B_TRUE; 1006 } 1007 1008 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1009 } 1010 1011 out: 1012 zfs_close(zhp); 1013 return (0); 1014 } 1015 1016 static int 1017 destroy_callback(zfs_handle_t *zhp, void *data) 1018 { 1019 destroy_cbdata_t *cb = data; 1020 const char *name = zfs_get_name(zhp); 1021 1022 if (cb->cb_verbose) { 1023 if (cb->cb_parsable) { 1024 (void) printf("destroy\t%s\n", name); 1025 } else if (cb->cb_dryrun) { 1026 (void) printf(gettext("would destroy %s\n"), 1027 name); 1028 } else { 1029 (void) printf(gettext("will destroy %s\n"), 1030 name); 1031 } 1032 } 1033 1034 /* 1035 * Ignore pools (which we've already flagged as an error before getting 1036 * here). 1037 */ 1038 if (strchr(zfs_get_name(zhp), '/') == NULL && 1039 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1040 zfs_close(zhp); 1041 return (0); 1042 } 1043 if (cb->cb_dryrun) { 1044 zfs_close(zhp); 1045 return (0); 1046 } 1047 1048 /* 1049 * We batch up all contiguous snapshots (even of different 1050 * filesystems) and destroy them with one ioctl. We can't 1051 * simply do all snap deletions and then all fs deletions, 1052 * because we must delete a clone before its origin. 1053 */ 1054 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1055 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1056 } else { 1057 int error = zfs_destroy_snaps_nvl(g_zfs, 1058 cb->cb_batchedsnaps, B_FALSE); 1059 fnvlist_free(cb->cb_batchedsnaps); 1060 cb->cb_batchedsnaps = fnvlist_alloc(); 1061 1062 if (error != 0 || 1063 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1064 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1065 zfs_close(zhp); 1066 return (-1); 1067 } 1068 } 1069 1070 zfs_close(zhp); 1071 return (0); 1072 } 1073 1074 static int 1075 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1076 { 1077 destroy_cbdata_t *cb = arg; 1078 const char *name = zfs_get_name(zhp); 1079 int err = 0; 1080 1081 if (nvlist_exists(cb->cb_nvl, name)) { 1082 if (cb->cb_firstsnap == NULL) 1083 cb->cb_firstsnap = strdup(name); 1084 if (cb->cb_prevsnap != NULL) 1085 free(cb->cb_prevsnap); 1086 /* this snap continues the current range */ 1087 cb->cb_prevsnap = strdup(name); 1088 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1089 nomem(); 1090 if (cb->cb_verbose) { 1091 if (cb->cb_parsable) { 1092 (void) printf("destroy\t%s\n", name); 1093 } else if (cb->cb_dryrun) { 1094 (void) printf(gettext("would destroy %s\n"), 1095 name); 1096 } else { 1097 (void) printf(gettext("will destroy %s\n"), 1098 name); 1099 } 1100 } 1101 } else if (cb->cb_firstsnap != NULL) { 1102 /* end of this range */ 1103 uint64_t used = 0; 1104 err = lzc_snaprange_space(cb->cb_firstsnap, 1105 cb->cb_prevsnap, &used); 1106 cb->cb_snapused += used; 1107 free(cb->cb_firstsnap); 1108 cb->cb_firstsnap = NULL; 1109 free(cb->cb_prevsnap); 1110 cb->cb_prevsnap = NULL; 1111 } 1112 zfs_close(zhp); 1113 return (err); 1114 } 1115 1116 static int 1117 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1118 { 1119 int err = 0; 1120 assert(cb->cb_firstsnap == NULL); 1121 assert(cb->cb_prevsnap == NULL); 1122 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1123 if (cb->cb_firstsnap != NULL) { 1124 uint64_t used = 0; 1125 if (err == 0) { 1126 err = lzc_snaprange_space(cb->cb_firstsnap, 1127 cb->cb_prevsnap, &used); 1128 } 1129 cb->cb_snapused += used; 1130 free(cb->cb_firstsnap); 1131 cb->cb_firstsnap = NULL; 1132 free(cb->cb_prevsnap); 1133 cb->cb_prevsnap = NULL; 1134 } 1135 return (err); 1136 } 1137 1138 static int 1139 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1140 { 1141 destroy_cbdata_t *cb = arg; 1142 int err = 0; 1143 1144 /* Check for clones. */ 1145 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1146 cb->cb_target = zhp; 1147 cb->cb_first = B_TRUE; 1148 err = zfs_iter_dependents(zhp, B_TRUE, 1149 destroy_check_dependent, cb); 1150 } 1151 1152 if (err == 0) { 1153 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1154 nomem(); 1155 } 1156 zfs_close(zhp); 1157 return (err); 1158 } 1159 1160 static int 1161 gather_snapshots(zfs_handle_t *zhp, void *arg) 1162 { 1163 destroy_cbdata_t *cb = arg; 1164 int err = 0; 1165 1166 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1167 if (err == ENOENT) 1168 err = 0; 1169 if (err != 0) 1170 goto out; 1171 1172 if (cb->cb_verbose) { 1173 err = destroy_print_snapshots(zhp, cb); 1174 if (err != 0) 1175 goto out; 1176 } 1177 1178 if (cb->cb_recurse) 1179 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1180 1181 out: 1182 zfs_close(zhp); 1183 return (err); 1184 } 1185 1186 static int 1187 destroy_clones(destroy_cbdata_t *cb) 1188 { 1189 nvpair_t *pair; 1190 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1191 pair != NULL; 1192 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1193 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1194 ZFS_TYPE_SNAPSHOT); 1195 if (zhp != NULL) { 1196 boolean_t defer = cb->cb_defer_destroy; 1197 int err = 0; 1198 1199 /* 1200 * We can't defer destroy non-snapshots, so set it to 1201 * false while destroying the clones. 1202 */ 1203 cb->cb_defer_destroy = B_FALSE; 1204 err = zfs_iter_dependents(zhp, B_FALSE, 1205 destroy_callback, cb); 1206 cb->cb_defer_destroy = defer; 1207 zfs_close(zhp); 1208 if (err != 0) 1209 return (err); 1210 } 1211 } 1212 return (0); 1213 } 1214 1215 static int 1216 zfs_do_destroy(int argc, char **argv) 1217 { 1218 destroy_cbdata_t cb = { 0 }; 1219 int rv = 0; 1220 int err = 0; 1221 int c; 1222 zfs_handle_t *zhp = NULL; 1223 char *at, *pound; 1224 zfs_type_t type = ZFS_TYPE_DATASET; 1225 1226 /* check options */ 1227 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1228 switch (c) { 1229 case 'v': 1230 cb.cb_verbose = B_TRUE; 1231 break; 1232 case 'p': 1233 cb.cb_verbose = B_TRUE; 1234 cb.cb_parsable = B_TRUE; 1235 break; 1236 case 'n': 1237 cb.cb_dryrun = B_TRUE; 1238 break; 1239 case 'd': 1240 cb.cb_defer_destroy = B_TRUE; 1241 type = ZFS_TYPE_SNAPSHOT; 1242 break; 1243 case 'f': 1244 cb.cb_force = B_TRUE; 1245 break; 1246 case 'r': 1247 cb.cb_recurse = B_TRUE; 1248 break; 1249 case 'R': 1250 cb.cb_recurse = B_TRUE; 1251 cb.cb_doclones = B_TRUE; 1252 break; 1253 case '?': 1254 default: 1255 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1256 optopt); 1257 usage(B_FALSE); 1258 } 1259 } 1260 1261 argc -= optind; 1262 argv += optind; 1263 1264 /* check number of arguments */ 1265 if (argc == 0) { 1266 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1267 usage(B_FALSE); 1268 } 1269 if (argc > 1) { 1270 (void) fprintf(stderr, gettext("too many arguments\n")); 1271 usage(B_FALSE); 1272 } 1273 1274 at = strchr(argv[0], '@'); 1275 pound = strchr(argv[0], '#'); 1276 if (at != NULL) { 1277 1278 /* Build the list of snaps to destroy in cb_nvl. */ 1279 cb.cb_nvl = fnvlist_alloc(); 1280 1281 *at = '\0'; 1282 zhp = zfs_open(g_zfs, argv[0], 1283 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1284 if (zhp == NULL) 1285 return (1); 1286 1287 cb.cb_snapspec = at + 1; 1288 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1289 cb.cb_error) { 1290 rv = 1; 1291 goto out; 1292 } 1293 1294 if (nvlist_empty(cb.cb_nvl)) { 1295 (void) fprintf(stderr, gettext("could not find any " 1296 "snapshots to destroy; check snapshot names.\n")); 1297 rv = 1; 1298 goto out; 1299 } 1300 1301 if (cb.cb_verbose) { 1302 char buf[16]; 1303 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1304 if (cb.cb_parsable) { 1305 (void) printf("reclaim\t%llu\n", 1306 cb.cb_snapused); 1307 } else if (cb.cb_dryrun) { 1308 (void) printf(gettext("would reclaim %s\n"), 1309 buf); 1310 } else { 1311 (void) printf(gettext("will reclaim %s\n"), 1312 buf); 1313 } 1314 } 1315 1316 if (!cb.cb_dryrun) { 1317 if (cb.cb_doclones) { 1318 cb.cb_batchedsnaps = fnvlist_alloc(); 1319 err = destroy_clones(&cb); 1320 if (err == 0) { 1321 err = zfs_destroy_snaps_nvl(g_zfs, 1322 cb.cb_batchedsnaps, B_FALSE); 1323 } 1324 if (err != 0) { 1325 rv = 1; 1326 goto out; 1327 } 1328 } 1329 if (err == 0) { 1330 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1331 cb.cb_defer_destroy); 1332 } 1333 } 1334 1335 if (err != 0) 1336 rv = 1; 1337 } else if (pound != NULL) { 1338 int err; 1339 nvlist_t *nvl; 1340 1341 if (cb.cb_dryrun) { 1342 (void) fprintf(stderr, 1343 "dryrun is not supported with bookmark\n"); 1344 return (-1); 1345 } 1346 1347 if (cb.cb_defer_destroy) { 1348 (void) fprintf(stderr, 1349 "defer destroy is not supported with bookmark\n"); 1350 return (-1); 1351 } 1352 1353 if (cb.cb_recurse) { 1354 (void) fprintf(stderr, 1355 "recursive is not supported with bookmark\n"); 1356 return (-1); 1357 } 1358 1359 if (!zfs_bookmark_exists(argv[0])) { 1360 (void) fprintf(stderr, gettext("bookmark '%s' " 1361 "does not exist.\n"), argv[0]); 1362 return (1); 1363 } 1364 1365 nvl = fnvlist_alloc(); 1366 fnvlist_add_boolean(nvl, argv[0]); 1367 1368 err = lzc_destroy_bookmarks(nvl, NULL); 1369 if (err != 0) { 1370 (void) zfs_standard_error(g_zfs, err, 1371 "cannot destroy bookmark"); 1372 } 1373 1374 nvlist_free(cb.cb_nvl); 1375 1376 return (err); 1377 } else { 1378 /* Open the given dataset */ 1379 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1380 return (1); 1381 1382 cb.cb_target = zhp; 1383 1384 /* 1385 * Perform an explicit check for pools before going any further. 1386 */ 1387 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1388 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1389 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1390 "operation does not apply to pools\n"), 1391 zfs_get_name(zhp)); 1392 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1393 "%s' to destroy all datasets in the pool\n"), 1394 zfs_get_name(zhp)); 1395 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1396 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1397 rv = 1; 1398 goto out; 1399 } 1400 1401 /* 1402 * Check for any dependents and/or clones. 1403 */ 1404 cb.cb_first = B_TRUE; 1405 if (!cb.cb_doclones && 1406 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1407 &cb) != 0) { 1408 rv = 1; 1409 goto out; 1410 } 1411 1412 if (cb.cb_error) { 1413 rv = 1; 1414 goto out; 1415 } 1416 1417 cb.cb_batchedsnaps = fnvlist_alloc(); 1418 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1419 &cb) != 0) { 1420 rv = 1; 1421 goto out; 1422 } 1423 1424 /* 1425 * Do the real thing. The callback will close the 1426 * handle regardless of whether it succeeds or not. 1427 */ 1428 err = destroy_callback(zhp, &cb); 1429 zhp = NULL; 1430 if (err == 0) { 1431 err = zfs_destroy_snaps_nvl(g_zfs, 1432 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1433 } 1434 if (err != 0) 1435 rv = 1; 1436 } 1437 1438 out: 1439 fnvlist_free(cb.cb_batchedsnaps); 1440 fnvlist_free(cb.cb_nvl); 1441 if (zhp != NULL) 1442 zfs_close(zhp); 1443 return (rv); 1444 } 1445 1446 static boolean_t 1447 is_recvd_column(zprop_get_cbdata_t *cbp) 1448 { 1449 int i; 1450 zfs_get_column_t col; 1451 1452 for (i = 0; i < ZFS_GET_NCOLS && 1453 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1454 if (col == GET_COL_RECVD) 1455 return (B_TRUE); 1456 return (B_FALSE); 1457 } 1458 1459 /* 1460 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1461 * < all | property[,property]... > < fs | snap | vol > ... 1462 * 1463 * -r recurse over any child datasets 1464 * -H scripted mode. Headers are stripped, and fields are separated 1465 * by tabs instead of spaces. 1466 * -o Set of fields to display. One of "name,property,value, 1467 * received,source". Default is "name,property,value,source". 1468 * "all" is an alias for all five. 1469 * -s Set of sources to allow. One of 1470 * "local,default,inherited,received,temporary,none". Default is 1471 * all six. 1472 * -p Display values in parsable (literal) format. 1473 * 1474 * Prints properties for the given datasets. The user can control which 1475 * columns to display as well as which property types to allow. 1476 */ 1477 1478 /* 1479 * Invoked to display the properties for a single dataset. 1480 */ 1481 static int 1482 get_callback(zfs_handle_t *zhp, void *data) 1483 { 1484 char buf[ZFS_MAXPROPLEN]; 1485 char rbuf[ZFS_MAXPROPLEN]; 1486 zprop_source_t sourcetype; 1487 char source[ZFS_MAX_DATASET_NAME_LEN]; 1488 zprop_get_cbdata_t *cbp = data; 1489 nvlist_t *user_props = zfs_get_user_props(zhp); 1490 zprop_list_t *pl = cbp->cb_proplist; 1491 nvlist_t *propval; 1492 char *strval; 1493 char *sourceval; 1494 boolean_t received = is_recvd_column(cbp); 1495 1496 for (; pl != NULL; pl = pl->pl_next) { 1497 char *recvdval = NULL; 1498 /* 1499 * Skip the special fake placeholder. This will also skip over 1500 * the name property when 'all' is specified. 1501 */ 1502 if (pl->pl_prop == ZFS_PROP_NAME && 1503 pl == cbp->cb_proplist) 1504 continue; 1505 1506 if (pl->pl_prop != ZPROP_INVAL) { 1507 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1508 sizeof (buf), &sourcetype, source, 1509 sizeof (source), 1510 cbp->cb_literal) != 0) { 1511 if (pl->pl_all) 1512 continue; 1513 if (!zfs_prop_valid_for_type(pl->pl_prop, 1514 ZFS_TYPE_DATASET)) { 1515 (void) fprintf(stderr, 1516 gettext("No such property '%s'\n"), 1517 zfs_prop_to_name(pl->pl_prop)); 1518 continue; 1519 } 1520 sourcetype = ZPROP_SRC_NONE; 1521 (void) strlcpy(buf, "-", sizeof (buf)); 1522 } 1523 1524 if (received && (zfs_prop_get_recvd(zhp, 1525 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1526 cbp->cb_literal) == 0)) 1527 recvdval = rbuf; 1528 1529 zprop_print_one_property(zfs_get_name(zhp), cbp, 1530 zfs_prop_to_name(pl->pl_prop), 1531 buf, sourcetype, source, recvdval); 1532 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1533 sourcetype = ZPROP_SRC_LOCAL; 1534 1535 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1536 buf, sizeof (buf), cbp->cb_literal) != 0) { 1537 sourcetype = ZPROP_SRC_NONE; 1538 (void) strlcpy(buf, "-", sizeof (buf)); 1539 } 1540 1541 zprop_print_one_property(zfs_get_name(zhp), cbp, 1542 pl->pl_user_prop, buf, sourcetype, source, NULL); 1543 } else if (zfs_prop_written(pl->pl_user_prop)) { 1544 sourcetype = ZPROP_SRC_LOCAL; 1545 1546 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1547 buf, sizeof (buf), cbp->cb_literal) != 0) { 1548 sourcetype = ZPROP_SRC_NONE; 1549 (void) strlcpy(buf, "-", sizeof (buf)); 1550 } 1551 1552 zprop_print_one_property(zfs_get_name(zhp), cbp, 1553 pl->pl_user_prop, buf, sourcetype, source, NULL); 1554 } else { 1555 if (nvlist_lookup_nvlist(user_props, 1556 pl->pl_user_prop, &propval) != 0) { 1557 if (pl->pl_all) 1558 continue; 1559 sourcetype = ZPROP_SRC_NONE; 1560 strval = "-"; 1561 } else { 1562 verify(nvlist_lookup_string(propval, 1563 ZPROP_VALUE, &strval) == 0); 1564 verify(nvlist_lookup_string(propval, 1565 ZPROP_SOURCE, &sourceval) == 0); 1566 1567 if (strcmp(sourceval, 1568 zfs_get_name(zhp)) == 0) { 1569 sourcetype = ZPROP_SRC_LOCAL; 1570 } else if (strcmp(sourceval, 1571 ZPROP_SOURCE_VAL_RECVD) == 0) { 1572 sourcetype = ZPROP_SRC_RECEIVED; 1573 } else { 1574 sourcetype = ZPROP_SRC_INHERITED; 1575 (void) strlcpy(source, 1576 sourceval, sizeof (source)); 1577 } 1578 } 1579 1580 if (received && (zfs_prop_get_recvd(zhp, 1581 pl->pl_user_prop, rbuf, sizeof (rbuf), 1582 cbp->cb_literal) == 0)) 1583 recvdval = rbuf; 1584 1585 zprop_print_one_property(zfs_get_name(zhp), cbp, 1586 pl->pl_user_prop, strval, sourcetype, 1587 source, recvdval); 1588 } 1589 } 1590 1591 return (0); 1592 } 1593 1594 static int 1595 zfs_do_get(int argc, char **argv) 1596 { 1597 zprop_get_cbdata_t cb = { 0 }; 1598 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1599 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1600 char *value, *fields; 1601 int ret = 0; 1602 int limit = 0; 1603 zprop_list_t fake_name = { 0 }; 1604 1605 /* 1606 * Set up default columns and sources. 1607 */ 1608 cb.cb_sources = ZPROP_SRC_ALL; 1609 cb.cb_columns[0] = GET_COL_NAME; 1610 cb.cb_columns[1] = GET_COL_PROPERTY; 1611 cb.cb_columns[2] = GET_COL_VALUE; 1612 cb.cb_columns[3] = GET_COL_SOURCE; 1613 cb.cb_type = ZFS_TYPE_DATASET; 1614 1615 /* check options */ 1616 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1617 switch (c) { 1618 case 'p': 1619 cb.cb_literal = B_TRUE; 1620 break; 1621 case 'd': 1622 limit = parse_depth(optarg, &flags); 1623 break; 1624 case 'r': 1625 flags |= ZFS_ITER_RECURSE; 1626 break; 1627 case 'H': 1628 cb.cb_scripted = B_TRUE; 1629 break; 1630 case ':': 1631 (void) fprintf(stderr, gettext("missing argument for " 1632 "'%c' option\n"), optopt); 1633 usage(B_FALSE); 1634 break; 1635 case 'o': 1636 /* 1637 * Process the set of columns to display. We zero out 1638 * the structure to give us a blank slate. 1639 */ 1640 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1641 i = 0; 1642 while (*optarg != '\0') { 1643 static char *col_subopts[] = 1644 { "name", "property", "value", "received", 1645 "source", "all", NULL }; 1646 1647 if (i == ZFS_GET_NCOLS) { 1648 (void) fprintf(stderr, gettext("too " 1649 "many fields given to -o " 1650 "option\n")); 1651 usage(B_FALSE); 1652 } 1653 1654 switch (getsubopt(&optarg, col_subopts, 1655 &value)) { 1656 case 0: 1657 cb.cb_columns[i++] = GET_COL_NAME; 1658 break; 1659 case 1: 1660 cb.cb_columns[i++] = GET_COL_PROPERTY; 1661 break; 1662 case 2: 1663 cb.cb_columns[i++] = GET_COL_VALUE; 1664 break; 1665 case 3: 1666 cb.cb_columns[i++] = GET_COL_RECVD; 1667 flags |= ZFS_ITER_RECVD_PROPS; 1668 break; 1669 case 4: 1670 cb.cb_columns[i++] = GET_COL_SOURCE; 1671 break; 1672 case 5: 1673 if (i > 0) { 1674 (void) fprintf(stderr, 1675 gettext("\"all\" conflicts " 1676 "with specific fields " 1677 "given to -o option\n")); 1678 usage(B_FALSE); 1679 } 1680 cb.cb_columns[0] = GET_COL_NAME; 1681 cb.cb_columns[1] = GET_COL_PROPERTY; 1682 cb.cb_columns[2] = GET_COL_VALUE; 1683 cb.cb_columns[3] = GET_COL_RECVD; 1684 cb.cb_columns[4] = GET_COL_SOURCE; 1685 flags |= ZFS_ITER_RECVD_PROPS; 1686 i = ZFS_GET_NCOLS; 1687 break; 1688 default: 1689 (void) fprintf(stderr, 1690 gettext("invalid column name " 1691 "'%s'\n"), value); 1692 usage(B_FALSE); 1693 } 1694 } 1695 break; 1696 1697 case 's': 1698 cb.cb_sources = 0; 1699 while (*optarg != '\0') { 1700 static char *source_subopts[] = { 1701 "local", "default", "inherited", 1702 "received", "temporary", "none", 1703 NULL }; 1704 1705 switch (getsubopt(&optarg, source_subopts, 1706 &value)) { 1707 case 0: 1708 cb.cb_sources |= ZPROP_SRC_LOCAL; 1709 break; 1710 case 1: 1711 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1712 break; 1713 case 2: 1714 cb.cb_sources |= ZPROP_SRC_INHERITED; 1715 break; 1716 case 3: 1717 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1718 break; 1719 case 4: 1720 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1721 break; 1722 case 5: 1723 cb.cb_sources |= ZPROP_SRC_NONE; 1724 break; 1725 default: 1726 (void) fprintf(stderr, 1727 gettext("invalid source " 1728 "'%s'\n"), value); 1729 usage(B_FALSE); 1730 } 1731 } 1732 break; 1733 1734 case 't': 1735 types = 0; 1736 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1737 while (*optarg != '\0') { 1738 static char *type_subopts[] = { "filesystem", 1739 "volume", "snapshot", "bookmark", 1740 "all", NULL }; 1741 1742 switch (getsubopt(&optarg, type_subopts, 1743 &value)) { 1744 case 0: 1745 types |= ZFS_TYPE_FILESYSTEM; 1746 break; 1747 case 1: 1748 types |= ZFS_TYPE_VOLUME; 1749 break; 1750 case 2: 1751 types |= ZFS_TYPE_SNAPSHOT; 1752 break; 1753 case 3: 1754 types |= ZFS_TYPE_BOOKMARK; 1755 break; 1756 case 4: 1757 types = ZFS_TYPE_DATASET | 1758 ZFS_TYPE_BOOKMARK; 1759 break; 1760 1761 default: 1762 (void) fprintf(stderr, 1763 gettext("invalid type '%s'\n"), 1764 value); 1765 usage(B_FALSE); 1766 } 1767 } 1768 break; 1769 1770 case '?': 1771 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1772 optopt); 1773 usage(B_FALSE); 1774 } 1775 } 1776 1777 argc -= optind; 1778 argv += optind; 1779 1780 if (argc < 1) { 1781 (void) fprintf(stderr, gettext("missing property " 1782 "argument\n")); 1783 usage(B_FALSE); 1784 } 1785 1786 fields = argv[0]; 1787 1788 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1789 != 0) 1790 usage(B_FALSE); 1791 1792 argc--; 1793 argv++; 1794 1795 /* 1796 * As part of zfs_expand_proplist(), we keep track of the maximum column 1797 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1798 * need to know the maximum name length. However, the user likely did 1799 * not specify 'name' as one of the properties to fetch, so we need to 1800 * make sure we always include at least this property for 1801 * print_get_headers() to work properly. 1802 */ 1803 if (cb.cb_proplist != NULL) { 1804 fake_name.pl_prop = ZFS_PROP_NAME; 1805 fake_name.pl_width = strlen(gettext("NAME")); 1806 fake_name.pl_next = cb.cb_proplist; 1807 cb.cb_proplist = &fake_name; 1808 } 1809 1810 cb.cb_first = B_TRUE; 1811 1812 /* run for each object */ 1813 ret = zfs_for_each(argc, argv, flags, types, NULL, 1814 &cb.cb_proplist, limit, get_callback, &cb); 1815 1816 if (cb.cb_proplist == &fake_name) 1817 zprop_free_list(fake_name.pl_next); 1818 else 1819 zprop_free_list(cb.cb_proplist); 1820 1821 return (ret); 1822 } 1823 1824 /* 1825 * inherit [-rS] <property> <fs|vol> ... 1826 * 1827 * -r Recurse over all children 1828 * -S Revert to received value, if any 1829 * 1830 * For each dataset specified on the command line, inherit the given property 1831 * from its parent. Inheriting a property at the pool level will cause it to 1832 * use the default value. The '-r' flag will recurse over all children, and is 1833 * useful for setting a property on a hierarchy-wide basis, regardless of any 1834 * local modifications for each dataset. 1835 */ 1836 1837 typedef struct inherit_cbdata { 1838 const char *cb_propname; 1839 boolean_t cb_received; 1840 } inherit_cbdata_t; 1841 1842 static int 1843 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1844 { 1845 inherit_cbdata_t *cb = data; 1846 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1847 1848 /* 1849 * If we're doing it recursively, then ignore properties that 1850 * are not valid for this type of dataset. 1851 */ 1852 if (prop != ZPROP_INVAL && 1853 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1854 return (0); 1855 1856 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1857 } 1858 1859 static int 1860 inherit_cb(zfs_handle_t *zhp, void *data) 1861 { 1862 inherit_cbdata_t *cb = data; 1863 1864 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1865 } 1866 1867 static int 1868 zfs_do_inherit(int argc, char **argv) 1869 { 1870 int c; 1871 zfs_prop_t prop; 1872 inherit_cbdata_t cb = { 0 }; 1873 char *propname; 1874 int ret = 0; 1875 int flags = 0; 1876 boolean_t received = B_FALSE; 1877 1878 /* check options */ 1879 while ((c = getopt(argc, argv, "rS")) != -1) { 1880 switch (c) { 1881 case 'r': 1882 flags |= ZFS_ITER_RECURSE; 1883 break; 1884 case 'S': 1885 received = B_TRUE; 1886 break; 1887 case '?': 1888 default: 1889 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1890 optopt); 1891 usage(B_FALSE); 1892 } 1893 } 1894 1895 argc -= optind; 1896 argv += optind; 1897 1898 /* check number of arguments */ 1899 if (argc < 1) { 1900 (void) fprintf(stderr, gettext("missing property argument\n")); 1901 usage(B_FALSE); 1902 } 1903 if (argc < 2) { 1904 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1905 usage(B_FALSE); 1906 } 1907 1908 propname = argv[0]; 1909 argc--; 1910 argv++; 1911 1912 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1913 if (zfs_prop_readonly(prop)) { 1914 (void) fprintf(stderr, gettext( 1915 "%s property is read-only\n"), 1916 propname); 1917 return (1); 1918 } 1919 if (!zfs_prop_inheritable(prop) && !received) { 1920 (void) fprintf(stderr, gettext("'%s' property cannot " 1921 "be inherited\n"), propname); 1922 if (prop == ZFS_PROP_QUOTA || 1923 prop == ZFS_PROP_RESERVATION || 1924 prop == ZFS_PROP_REFQUOTA || 1925 prop == ZFS_PROP_REFRESERVATION) { 1926 (void) fprintf(stderr, gettext("use 'zfs set " 1927 "%s=none' to clear\n"), propname); 1928 (void) fprintf(stderr, gettext("use 'zfs " 1929 "inherit -S %s' to revert to received " 1930 "value\n"), propname); 1931 } 1932 return (1); 1933 } 1934 if (received && (prop == ZFS_PROP_VOLSIZE || 1935 prop == ZFS_PROP_VERSION)) { 1936 (void) fprintf(stderr, gettext("'%s' property cannot " 1937 "be reverted to a received value\n"), propname); 1938 return (1); 1939 } 1940 } else if (!zfs_prop_user(propname)) { 1941 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1942 propname); 1943 usage(B_FALSE); 1944 } 1945 1946 cb.cb_propname = propname; 1947 cb.cb_received = received; 1948 1949 if (flags & ZFS_ITER_RECURSE) { 1950 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1951 NULL, NULL, 0, inherit_recurse_cb, &cb); 1952 } else { 1953 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1954 NULL, NULL, 0, inherit_cb, &cb); 1955 } 1956 1957 return (ret); 1958 } 1959 1960 typedef struct upgrade_cbdata { 1961 uint64_t cb_numupgraded; 1962 uint64_t cb_numsamegraded; 1963 uint64_t cb_numfailed; 1964 uint64_t cb_version; 1965 boolean_t cb_newer; 1966 boolean_t cb_foundone; 1967 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1968 } upgrade_cbdata_t; 1969 1970 static int 1971 same_pool(zfs_handle_t *zhp, const char *name) 1972 { 1973 int len1 = strcspn(name, "/@"); 1974 const char *zhname = zfs_get_name(zhp); 1975 int len2 = strcspn(zhname, "/@"); 1976 1977 if (len1 != len2) 1978 return (B_FALSE); 1979 return (strncmp(name, zhname, len1) == 0); 1980 } 1981 1982 static int 1983 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1984 { 1985 upgrade_cbdata_t *cb = data; 1986 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1987 1988 /* list if it's old/new */ 1989 if ((!cb->cb_newer && version < ZPL_VERSION) || 1990 (cb->cb_newer && version > ZPL_VERSION)) { 1991 char *str; 1992 if (cb->cb_newer) { 1993 str = gettext("The following filesystems are " 1994 "formatted using a newer software version and\n" 1995 "cannot be accessed on the current system.\n\n"); 1996 } else { 1997 str = gettext("The following filesystems are " 1998 "out of date, and can be upgraded. After being\n" 1999 "upgraded, these filesystems (and any 'zfs send' " 2000 "streams generated from\n" 2001 "subsequent snapshots) will no longer be " 2002 "accessible by older software versions.\n\n"); 2003 } 2004 2005 if (!cb->cb_foundone) { 2006 (void) puts(str); 2007 (void) printf(gettext("VER FILESYSTEM\n")); 2008 (void) printf(gettext("--- ------------\n")); 2009 cb->cb_foundone = B_TRUE; 2010 } 2011 2012 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2013 } 2014 2015 return (0); 2016 } 2017 2018 static int 2019 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2020 { 2021 upgrade_cbdata_t *cb = data; 2022 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2023 int needed_spa_version; 2024 int spa_version; 2025 2026 if (zfs_spa_version(zhp, &spa_version) < 0) 2027 return (-1); 2028 2029 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2030 2031 if (needed_spa_version < 0) 2032 return (-1); 2033 2034 if (spa_version < needed_spa_version) { 2035 /* can't upgrade */ 2036 (void) printf(gettext("%s: can not be " 2037 "upgraded; the pool version needs to first " 2038 "be upgraded\nto version %d\n\n"), 2039 zfs_get_name(zhp), needed_spa_version); 2040 cb->cb_numfailed++; 2041 return (0); 2042 } 2043 2044 /* upgrade */ 2045 if (version < cb->cb_version) { 2046 char verstr[16]; 2047 (void) snprintf(verstr, sizeof (verstr), 2048 "%llu", cb->cb_version); 2049 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2050 /* 2051 * If they did "zfs upgrade -a", then we could 2052 * be doing ioctls to different pools. We need 2053 * to log this history once to each pool, and bypass 2054 * the normal history logging that happens in main(). 2055 */ 2056 (void) zpool_log_history(g_zfs, history_str); 2057 log_history = B_FALSE; 2058 } 2059 if (zfs_prop_set(zhp, "version", verstr) == 0) 2060 cb->cb_numupgraded++; 2061 else 2062 cb->cb_numfailed++; 2063 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2064 } else if (version > cb->cb_version) { 2065 /* can't downgrade */ 2066 (void) printf(gettext("%s: can not be downgraded; " 2067 "it is already at version %u\n"), 2068 zfs_get_name(zhp), version); 2069 cb->cb_numfailed++; 2070 } else { 2071 cb->cb_numsamegraded++; 2072 } 2073 return (0); 2074 } 2075 2076 /* 2077 * zfs upgrade 2078 * zfs upgrade -v 2079 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2080 */ 2081 static int 2082 zfs_do_upgrade(int argc, char **argv) 2083 { 2084 boolean_t all = B_FALSE; 2085 boolean_t showversions = B_FALSE; 2086 int ret = 0; 2087 upgrade_cbdata_t cb = { 0 }; 2088 char c; 2089 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2090 2091 /* check options */ 2092 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2093 switch (c) { 2094 case 'r': 2095 flags |= ZFS_ITER_RECURSE; 2096 break; 2097 case 'v': 2098 showversions = B_TRUE; 2099 break; 2100 case 'V': 2101 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2102 optarg, &cb.cb_version) != 0) { 2103 (void) fprintf(stderr, 2104 gettext("invalid version %s\n"), optarg); 2105 usage(B_FALSE); 2106 } 2107 break; 2108 case 'a': 2109 all = B_TRUE; 2110 break; 2111 case '?': 2112 default: 2113 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2114 optopt); 2115 usage(B_FALSE); 2116 } 2117 } 2118 2119 argc -= optind; 2120 argv += optind; 2121 2122 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2123 usage(B_FALSE); 2124 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2125 cb.cb_version || argc)) 2126 usage(B_FALSE); 2127 if ((all || argc) && (showversions)) 2128 usage(B_FALSE); 2129 if (all && argc) 2130 usage(B_FALSE); 2131 2132 if (showversions) { 2133 /* Show info on available versions. */ 2134 (void) printf(gettext("The following filesystem versions are " 2135 "supported:\n\n")); 2136 (void) printf(gettext("VER DESCRIPTION\n")); 2137 (void) printf("--- -----------------------------------------" 2138 "---------------\n"); 2139 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2140 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2141 (void) printf(gettext(" 3 Case insensitive and filesystem " 2142 "user identifier (FUID)\n")); 2143 (void) printf(gettext(" 4 userquota, groupquota " 2144 "properties\n")); 2145 (void) printf(gettext(" 5 System attributes\n")); 2146 (void) printf(gettext("\nFor more information on a particular " 2147 "version, including supported releases,\n")); 2148 (void) printf("see the ZFS Administration Guide.\n\n"); 2149 ret = 0; 2150 } else if (argc || all) { 2151 /* Upgrade filesystems */ 2152 if (cb.cb_version == 0) 2153 cb.cb_version = ZPL_VERSION; 2154 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2155 NULL, NULL, 0, upgrade_set_callback, &cb); 2156 (void) printf(gettext("%llu filesystems upgraded\n"), 2157 cb.cb_numupgraded); 2158 if (cb.cb_numsamegraded) { 2159 (void) printf(gettext("%llu filesystems already at " 2160 "this version\n"), 2161 cb.cb_numsamegraded); 2162 } 2163 if (cb.cb_numfailed != 0) 2164 ret = 1; 2165 } else { 2166 /* List old-version filesytems */ 2167 boolean_t found; 2168 (void) printf(gettext("This system is currently running " 2169 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2170 2171 flags |= ZFS_ITER_RECURSE; 2172 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2173 NULL, NULL, 0, upgrade_list_callback, &cb); 2174 2175 found = cb.cb_foundone; 2176 cb.cb_foundone = B_FALSE; 2177 cb.cb_newer = B_TRUE; 2178 2179 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2180 NULL, NULL, 0, upgrade_list_callback, &cb); 2181 2182 if (!cb.cb_foundone && !found) { 2183 (void) printf(gettext("All filesystems are " 2184 "formatted with the current version.\n")); 2185 } 2186 } 2187 2188 return (ret); 2189 } 2190 2191 /* 2192 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2193 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2194 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2195 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2196 * 2197 * -H Scripted mode; elide headers and separate columns by tabs. 2198 * -i Translate SID to POSIX ID. 2199 * -n Print numeric ID instead of user/group name. 2200 * -o Control which fields to display. 2201 * -p Use exact (parsable) numeric output. 2202 * -s Specify sort columns, descending order. 2203 * -S Specify sort columns, ascending order. 2204 * -t Control which object types to display. 2205 * 2206 * Displays space consumed by, and quotas on, each user in the specified 2207 * filesystem or snapshot. 2208 */ 2209 2210 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2211 enum us_field_types { 2212 USFIELD_TYPE, 2213 USFIELD_NAME, 2214 USFIELD_USED, 2215 USFIELD_QUOTA 2216 }; 2217 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2218 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2219 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2220 2221 #define USTYPE_PSX_GRP (1 << 0) 2222 #define USTYPE_PSX_USR (1 << 1) 2223 #define USTYPE_SMB_GRP (1 << 2) 2224 #define USTYPE_SMB_USR (1 << 3) 2225 #define USTYPE_ALL \ 2226 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2227 2228 static int us_type_bits[] = { 2229 USTYPE_PSX_GRP, 2230 USTYPE_PSX_USR, 2231 USTYPE_SMB_GRP, 2232 USTYPE_SMB_USR, 2233 USTYPE_ALL 2234 }; 2235 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2236 "smbuser", "all" }; 2237 2238 typedef struct us_node { 2239 nvlist_t *usn_nvl; 2240 uu_avl_node_t usn_avlnode; 2241 uu_list_node_t usn_listnode; 2242 } us_node_t; 2243 2244 typedef struct us_cbdata { 2245 nvlist_t **cb_nvlp; 2246 uu_avl_pool_t *cb_avl_pool; 2247 uu_avl_t *cb_avl; 2248 boolean_t cb_numname; 2249 boolean_t cb_nicenum; 2250 boolean_t cb_sid2posix; 2251 zfs_userquota_prop_t cb_prop; 2252 zfs_sort_column_t *cb_sortcol; 2253 size_t cb_width[USFIELD_LAST]; 2254 } us_cbdata_t; 2255 2256 static boolean_t us_populated = B_FALSE; 2257 2258 typedef struct { 2259 zfs_sort_column_t *si_sortcol; 2260 boolean_t si_numname; 2261 } us_sort_info_t; 2262 2263 static int 2264 us_field_index(char *field) 2265 { 2266 int i; 2267 2268 for (i = 0; i < USFIELD_LAST; i++) { 2269 if (strcmp(field, us_field_names[i]) == 0) 2270 return (i); 2271 } 2272 2273 return (-1); 2274 } 2275 2276 static int 2277 us_compare(const void *larg, const void *rarg, void *unused) 2278 { 2279 const us_node_t *l = larg; 2280 const us_node_t *r = rarg; 2281 us_sort_info_t *si = (us_sort_info_t *)unused; 2282 zfs_sort_column_t *sortcol = si->si_sortcol; 2283 boolean_t numname = si->si_numname; 2284 nvlist_t *lnvl = l->usn_nvl; 2285 nvlist_t *rnvl = r->usn_nvl; 2286 int rc = 0; 2287 boolean_t lvb, rvb; 2288 2289 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2290 char *lvstr = ""; 2291 char *rvstr = ""; 2292 uint32_t lv32 = 0; 2293 uint32_t rv32 = 0; 2294 uint64_t lv64 = 0; 2295 uint64_t rv64 = 0; 2296 zfs_prop_t prop = sortcol->sc_prop; 2297 const char *propname = NULL; 2298 boolean_t reverse = sortcol->sc_reverse; 2299 2300 switch (prop) { 2301 case ZFS_PROP_TYPE: 2302 propname = "type"; 2303 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2304 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2305 if (rv32 != lv32) 2306 rc = (rv32 < lv32) ? 1 : -1; 2307 break; 2308 case ZFS_PROP_NAME: 2309 propname = "name"; 2310 if (numname) { 2311 (void) nvlist_lookup_uint64(lnvl, propname, 2312 &lv64); 2313 (void) nvlist_lookup_uint64(rnvl, propname, 2314 &rv64); 2315 if (rv64 != lv64) 2316 rc = (rv64 < lv64) ? 1 : -1; 2317 } else { 2318 (void) nvlist_lookup_string(lnvl, propname, 2319 &lvstr); 2320 (void) nvlist_lookup_string(rnvl, propname, 2321 &rvstr); 2322 rc = strcmp(lvstr, rvstr); 2323 } 2324 break; 2325 case ZFS_PROP_USED: 2326 case ZFS_PROP_QUOTA: 2327 if (!us_populated) 2328 break; 2329 if (prop == ZFS_PROP_USED) 2330 propname = "used"; 2331 else 2332 propname = "quota"; 2333 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2334 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2335 if (rv64 != lv64) 2336 rc = (rv64 < lv64) ? 1 : -1; 2337 break; 2338 2339 default: 2340 break; 2341 } 2342 2343 if (rc != 0) { 2344 if (rc < 0) 2345 return (reverse ? 1 : -1); 2346 else 2347 return (reverse ? -1 : 1); 2348 } 2349 } 2350 2351 /* 2352 * If entries still seem to be the same, check if they are of the same 2353 * type (smbentity is added only if we are doing SID to POSIX ID 2354 * translation where we can have duplicate type/name combinations). 2355 */ 2356 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2357 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2358 lvb != rvb) 2359 return (lvb < rvb ? -1 : 1); 2360 2361 return (0); 2362 } 2363 2364 static inline const char * 2365 us_type2str(unsigned field_type) 2366 { 2367 switch (field_type) { 2368 case USTYPE_PSX_USR: 2369 return ("POSIX User"); 2370 case USTYPE_PSX_GRP: 2371 return ("POSIX Group"); 2372 case USTYPE_SMB_USR: 2373 return ("SMB User"); 2374 case USTYPE_SMB_GRP: 2375 return ("SMB Group"); 2376 default: 2377 return ("Undefined"); 2378 } 2379 } 2380 2381 static int 2382 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2383 { 2384 us_cbdata_t *cb = (us_cbdata_t *)arg; 2385 zfs_userquota_prop_t prop = cb->cb_prop; 2386 char *name = NULL; 2387 char *propname; 2388 char sizebuf[32]; 2389 us_node_t *node; 2390 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2391 uu_avl_t *avl = cb->cb_avl; 2392 uu_avl_index_t idx; 2393 nvlist_t *props; 2394 us_node_t *n; 2395 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2396 unsigned type = 0; 2397 const char *typestr; 2398 size_t namelen; 2399 size_t typelen; 2400 size_t sizelen; 2401 int typeidx, nameidx, sizeidx; 2402 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2403 boolean_t smbentity = B_FALSE; 2404 2405 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2406 nomem(); 2407 node = safe_malloc(sizeof (us_node_t)); 2408 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2409 node->usn_nvl = props; 2410 2411 if (domain != NULL && domain[0] != '\0') { 2412 /* SMB */ 2413 char sid[MAXNAMELEN + 32]; 2414 uid_t id; 2415 int err; 2416 int flag = IDMAP_REQ_FLG_USE_CACHE; 2417 2418 smbentity = B_TRUE; 2419 2420 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2421 2422 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2423 type = USTYPE_SMB_GRP; 2424 err = sid_to_id(sid, B_FALSE, &id); 2425 } else { 2426 type = USTYPE_SMB_USR; 2427 err = sid_to_id(sid, B_TRUE, &id); 2428 } 2429 2430 if (err == 0) { 2431 rid = id; 2432 if (!cb->cb_sid2posix) { 2433 if (type == USTYPE_SMB_USR) { 2434 (void) idmap_getwinnamebyuid(rid, flag, 2435 &name, NULL); 2436 } else { 2437 (void) idmap_getwinnamebygid(rid, flag, 2438 &name, NULL); 2439 } 2440 if (name == NULL) 2441 name = sid; 2442 } 2443 } 2444 } 2445 2446 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2447 /* POSIX or -i */ 2448 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2449 type = USTYPE_PSX_GRP; 2450 if (!cb->cb_numname) { 2451 struct group *g; 2452 2453 if ((g = getgrgid(rid)) != NULL) 2454 name = g->gr_name; 2455 } 2456 } else { 2457 type = USTYPE_PSX_USR; 2458 if (!cb->cb_numname) { 2459 struct passwd *p; 2460 2461 if ((p = getpwuid(rid)) != NULL) 2462 name = p->pw_name; 2463 } 2464 } 2465 } 2466 2467 /* 2468 * Make sure that the type/name combination is unique when doing 2469 * SID to POSIX ID translation (hence changing the type from SMB to 2470 * POSIX). 2471 */ 2472 if (cb->cb_sid2posix && 2473 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2474 nomem(); 2475 2476 /* Calculate/update width of TYPE field */ 2477 typestr = us_type2str(type); 2478 typelen = strlen(gettext(typestr)); 2479 typeidx = us_field_index("type"); 2480 if (typelen > cb->cb_width[typeidx]) 2481 cb->cb_width[typeidx] = typelen; 2482 if (nvlist_add_uint32(props, "type", type) != 0) 2483 nomem(); 2484 2485 /* Calculate/update width of NAME field */ 2486 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2487 if (nvlist_add_uint64(props, "name", rid) != 0) 2488 nomem(); 2489 namelen = snprintf(NULL, 0, "%u", rid); 2490 } else { 2491 if (nvlist_add_string(props, "name", name) != 0) 2492 nomem(); 2493 namelen = strlen(name); 2494 } 2495 nameidx = us_field_index("name"); 2496 if (namelen > cb->cb_width[nameidx]) 2497 cb->cb_width[nameidx] = namelen; 2498 2499 /* 2500 * Check if this type/name combination is in the list and update it; 2501 * otherwise add new node to the list. 2502 */ 2503 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2504 uu_avl_insert(avl, node, idx); 2505 } else { 2506 nvlist_free(props); 2507 free(node); 2508 node = n; 2509 props = node->usn_nvl; 2510 } 2511 2512 /* Calculate/update width of USED/QUOTA fields */ 2513 if (cb->cb_nicenum) 2514 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2515 else 2516 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2517 sizelen = strlen(sizebuf); 2518 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2519 propname = "used"; 2520 if (!nvlist_exists(props, "quota")) 2521 (void) nvlist_add_uint64(props, "quota", 0); 2522 } else { 2523 propname = "quota"; 2524 if (!nvlist_exists(props, "used")) 2525 (void) nvlist_add_uint64(props, "used", 0); 2526 } 2527 sizeidx = us_field_index(propname); 2528 if (sizelen > cb->cb_width[sizeidx]) 2529 cb->cb_width[sizeidx] = sizelen; 2530 2531 if (nvlist_add_uint64(props, propname, space) != 0) 2532 nomem(); 2533 2534 return (0); 2535 } 2536 2537 static void 2538 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2539 size_t *width, us_node_t *node) 2540 { 2541 nvlist_t *nvl = node->usn_nvl; 2542 char valstr[MAXNAMELEN]; 2543 boolean_t first = B_TRUE; 2544 int cfield = 0; 2545 int field; 2546 uint32_t ustype; 2547 2548 /* Check type */ 2549 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2550 if (!(ustype & types)) 2551 return; 2552 2553 while ((field = fields[cfield]) != USFIELD_LAST) { 2554 nvpair_t *nvp = NULL; 2555 data_type_t type; 2556 uint32_t val32; 2557 uint64_t val64; 2558 char *strval = NULL; 2559 2560 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2561 if (strcmp(nvpair_name(nvp), 2562 us_field_names[field]) == 0) 2563 break; 2564 } 2565 2566 type = nvpair_type(nvp); 2567 switch (type) { 2568 case DATA_TYPE_UINT32: 2569 (void) nvpair_value_uint32(nvp, &val32); 2570 break; 2571 case DATA_TYPE_UINT64: 2572 (void) nvpair_value_uint64(nvp, &val64); 2573 break; 2574 case DATA_TYPE_STRING: 2575 (void) nvpair_value_string(nvp, &strval); 2576 break; 2577 default: 2578 (void) fprintf(stderr, "invalid data type\n"); 2579 } 2580 2581 switch (field) { 2582 case USFIELD_TYPE: 2583 strval = (char *)us_type2str(val32); 2584 break; 2585 case USFIELD_NAME: 2586 if (type == DATA_TYPE_UINT64) { 2587 (void) sprintf(valstr, "%llu", val64); 2588 strval = valstr; 2589 } 2590 break; 2591 case USFIELD_USED: 2592 case USFIELD_QUOTA: 2593 if (type == DATA_TYPE_UINT64) { 2594 if (parsable) { 2595 (void) sprintf(valstr, "%llu", val64); 2596 } else { 2597 zfs_nicenum(val64, valstr, 2598 sizeof (valstr)); 2599 } 2600 if (field == USFIELD_QUOTA && 2601 strcmp(valstr, "0") == 0) 2602 strval = "none"; 2603 else 2604 strval = valstr; 2605 } 2606 break; 2607 } 2608 2609 if (!first) { 2610 if (scripted) 2611 (void) printf("\t"); 2612 else 2613 (void) printf(" "); 2614 } 2615 if (scripted) 2616 (void) printf("%s", strval); 2617 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2618 (void) printf("%-*s", width[field], strval); 2619 else 2620 (void) printf("%*s", width[field], strval); 2621 2622 first = B_FALSE; 2623 cfield++; 2624 } 2625 2626 (void) printf("\n"); 2627 } 2628 2629 static void 2630 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2631 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2632 { 2633 us_node_t *node; 2634 const char *col; 2635 int cfield = 0; 2636 int field; 2637 2638 if (!scripted) { 2639 boolean_t first = B_TRUE; 2640 2641 while ((field = fields[cfield]) != USFIELD_LAST) { 2642 col = gettext(us_field_hdr[field]); 2643 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2644 (void) printf(first ? "%-*s" : " %-*s", 2645 width[field], col); 2646 } else { 2647 (void) printf(first ? "%*s" : " %*s", 2648 width[field], col); 2649 } 2650 first = B_FALSE; 2651 cfield++; 2652 } 2653 (void) printf("\n"); 2654 } 2655 2656 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2657 print_us_node(scripted, parsable, fields, types, width, node); 2658 if (rmnode) 2659 nvlist_free(node->usn_nvl); 2660 } 2661 } 2662 2663 static int 2664 zfs_do_userspace(int argc, char **argv) 2665 { 2666 zfs_handle_t *zhp; 2667 zfs_userquota_prop_t p; 2668 uu_avl_pool_t *avl_pool; 2669 uu_avl_t *avl_tree; 2670 uu_avl_walk_t *walk; 2671 char *delim; 2672 char deffields[] = "type,name,used,quota"; 2673 char *ofield = NULL; 2674 char *tfield = NULL; 2675 int cfield = 0; 2676 int fields[256]; 2677 int i; 2678 boolean_t scripted = B_FALSE; 2679 boolean_t prtnum = B_FALSE; 2680 boolean_t parsable = B_FALSE; 2681 boolean_t sid2posix = B_FALSE; 2682 int ret = 0; 2683 int c; 2684 zfs_sort_column_t *sortcol = NULL; 2685 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2686 us_cbdata_t cb; 2687 us_node_t *node; 2688 us_node_t *rmnode; 2689 uu_list_pool_t *listpool; 2690 uu_list_t *list; 2691 uu_avl_index_t idx = 0; 2692 uu_list_index_t idx2 = 0; 2693 2694 if (argc < 2) 2695 usage(B_FALSE); 2696 2697 if (strcmp(argv[0], "groupspace") == 0) 2698 /* Toggle default group types */ 2699 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2700 2701 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2702 switch (c) { 2703 case 'n': 2704 prtnum = B_TRUE; 2705 break; 2706 case 'H': 2707 scripted = B_TRUE; 2708 break; 2709 case 'p': 2710 parsable = B_TRUE; 2711 break; 2712 case 'o': 2713 ofield = optarg; 2714 break; 2715 case 's': 2716 case 'S': 2717 if (zfs_add_sort_column(&sortcol, optarg, 2718 c == 's' ? B_FALSE : B_TRUE) != 0) { 2719 (void) fprintf(stderr, 2720 gettext("invalid field '%s'\n"), optarg); 2721 usage(B_FALSE); 2722 } 2723 break; 2724 case 't': 2725 tfield = optarg; 2726 break; 2727 case 'i': 2728 sid2posix = B_TRUE; 2729 break; 2730 case ':': 2731 (void) fprintf(stderr, gettext("missing argument for " 2732 "'%c' option\n"), optopt); 2733 usage(B_FALSE); 2734 break; 2735 case '?': 2736 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2737 optopt); 2738 usage(B_FALSE); 2739 } 2740 } 2741 2742 argc -= optind; 2743 argv += optind; 2744 2745 if (argc < 1) { 2746 (void) fprintf(stderr, gettext("missing dataset name\n")); 2747 usage(B_FALSE); 2748 } 2749 if (argc > 1) { 2750 (void) fprintf(stderr, gettext("too many arguments\n")); 2751 usage(B_FALSE); 2752 } 2753 2754 /* Use default output fields if not specified using -o */ 2755 if (ofield == NULL) 2756 ofield = deffields; 2757 do { 2758 if ((delim = strchr(ofield, ',')) != NULL) 2759 *delim = '\0'; 2760 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2761 (void) fprintf(stderr, gettext("invalid type '%s' " 2762 "for -o option\n"), ofield); 2763 return (-1); 2764 } 2765 if (delim != NULL) 2766 ofield = delim + 1; 2767 } while (delim != NULL); 2768 fields[cfield] = USFIELD_LAST; 2769 2770 /* Override output types (-t option) */ 2771 if (tfield != NULL) { 2772 types = 0; 2773 2774 do { 2775 boolean_t found = B_FALSE; 2776 2777 if ((delim = strchr(tfield, ',')) != NULL) 2778 *delim = '\0'; 2779 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2780 i++) { 2781 if (strcmp(tfield, us_type_names[i]) == 0) { 2782 found = B_TRUE; 2783 types |= us_type_bits[i]; 2784 break; 2785 } 2786 } 2787 if (!found) { 2788 (void) fprintf(stderr, gettext("invalid type " 2789 "'%s' for -t option\n"), tfield); 2790 return (-1); 2791 } 2792 if (delim != NULL) 2793 tfield = delim + 1; 2794 } while (delim != NULL); 2795 } 2796 2797 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2798 return (1); 2799 2800 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2801 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2802 nomem(); 2803 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2804 nomem(); 2805 2806 /* Always add default sorting columns */ 2807 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2808 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2809 2810 cb.cb_sortcol = sortcol; 2811 cb.cb_numname = prtnum; 2812 cb.cb_nicenum = !parsable; 2813 cb.cb_avl_pool = avl_pool; 2814 cb.cb_avl = avl_tree; 2815 cb.cb_sid2posix = sid2posix; 2816 2817 for (i = 0; i < USFIELD_LAST; i++) 2818 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2819 2820 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2821 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2822 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2823 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2824 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2825 continue; 2826 cb.cb_prop = p; 2827 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2828 return (ret); 2829 } 2830 2831 /* Sort the list */ 2832 if ((node = uu_avl_first(avl_tree)) == NULL) 2833 return (0); 2834 2835 us_populated = B_TRUE; 2836 2837 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2838 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2839 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2840 uu_list_node_init(node, &node->usn_listnode, listpool); 2841 2842 while (node != NULL) { 2843 rmnode = node; 2844 node = uu_avl_next(avl_tree, node); 2845 uu_avl_remove(avl_tree, rmnode); 2846 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2847 uu_list_insert(list, rmnode, idx2); 2848 } 2849 2850 for (node = uu_list_first(list); node != NULL; 2851 node = uu_list_next(list, node)) { 2852 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2853 2854 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2855 uu_avl_insert(avl_tree, node, idx); 2856 } 2857 2858 uu_list_destroy(list); 2859 uu_list_pool_destroy(listpool); 2860 2861 /* Print and free node nvlist memory */ 2862 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2863 cb.cb_avl); 2864 2865 zfs_free_sort_columns(sortcol); 2866 2867 /* Clean up the AVL tree */ 2868 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2869 nomem(); 2870 2871 while ((node = uu_avl_walk_next(walk)) != NULL) { 2872 uu_avl_remove(cb.cb_avl, node); 2873 free(node); 2874 } 2875 2876 uu_avl_walk_end(walk); 2877 uu_avl_destroy(avl_tree); 2878 uu_avl_pool_destroy(avl_pool); 2879 2880 return (ret); 2881 } 2882 2883 /* 2884 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2885 * [-t type[,...]] [filesystem|volume|snapshot] ... 2886 * 2887 * -H Scripted mode; elide headers and separate columns by tabs. 2888 * -p Display values in parsable (literal) format. 2889 * -r Recurse over all children. 2890 * -d Limit recursion by depth. 2891 * -o Control which fields to display. 2892 * -s Specify sort columns, descending order. 2893 * -S Specify sort columns, ascending order. 2894 * -t Control which object types to display. 2895 * 2896 * When given no arguments, list all filesystems in the system. 2897 * Otherwise, list the specified datasets, optionally recursing down them if 2898 * '-r' is specified. 2899 */ 2900 typedef struct list_cbdata { 2901 boolean_t cb_first; 2902 boolean_t cb_literal; 2903 boolean_t cb_scripted; 2904 zprop_list_t *cb_proplist; 2905 } list_cbdata_t; 2906 2907 /* 2908 * Given a list of columns to display, output appropriate headers for each one. 2909 */ 2910 static void 2911 print_header(list_cbdata_t *cb) 2912 { 2913 zprop_list_t *pl = cb->cb_proplist; 2914 char headerbuf[ZFS_MAXPROPLEN]; 2915 const char *header; 2916 int i; 2917 boolean_t first = B_TRUE; 2918 boolean_t right_justify; 2919 2920 for (; pl != NULL; pl = pl->pl_next) { 2921 if (!first) { 2922 (void) printf(" "); 2923 } else { 2924 first = B_FALSE; 2925 } 2926 2927 right_justify = B_FALSE; 2928 if (pl->pl_prop != ZPROP_INVAL) { 2929 header = zfs_prop_column_name(pl->pl_prop); 2930 right_justify = zfs_prop_align_right(pl->pl_prop); 2931 } else { 2932 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2933 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2934 headerbuf[i] = '\0'; 2935 header = headerbuf; 2936 } 2937 2938 if (pl->pl_next == NULL && !right_justify) 2939 (void) printf("%s", header); 2940 else if (right_justify) 2941 (void) printf("%*s", pl->pl_width, header); 2942 else 2943 (void) printf("%-*s", pl->pl_width, header); 2944 } 2945 2946 (void) printf("\n"); 2947 } 2948 2949 /* 2950 * Given a dataset and a list of fields, print out all the properties according 2951 * to the described layout. 2952 */ 2953 static void 2954 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2955 { 2956 zprop_list_t *pl = cb->cb_proplist; 2957 boolean_t first = B_TRUE; 2958 char property[ZFS_MAXPROPLEN]; 2959 nvlist_t *userprops = zfs_get_user_props(zhp); 2960 nvlist_t *propval; 2961 char *propstr; 2962 boolean_t right_justify; 2963 2964 for (; pl != NULL; pl = pl->pl_next) { 2965 if (!first) { 2966 if (cb->cb_scripted) 2967 (void) printf("\t"); 2968 else 2969 (void) printf(" "); 2970 } else { 2971 first = B_FALSE; 2972 } 2973 2974 if (pl->pl_prop == ZFS_PROP_NAME) { 2975 (void) strlcpy(property, zfs_get_name(zhp), 2976 sizeof (property)); 2977 propstr = property; 2978 right_justify = zfs_prop_align_right(pl->pl_prop); 2979 } else if (pl->pl_prop != ZPROP_INVAL) { 2980 if (zfs_prop_get(zhp, pl->pl_prop, property, 2981 sizeof (property), NULL, NULL, 0, 2982 cb->cb_literal) != 0) 2983 propstr = "-"; 2984 else 2985 propstr = property; 2986 right_justify = zfs_prop_align_right(pl->pl_prop); 2987 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2988 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2989 property, sizeof (property), cb->cb_literal) != 0) 2990 propstr = "-"; 2991 else 2992 propstr = property; 2993 right_justify = B_TRUE; 2994 } else if (zfs_prop_written(pl->pl_user_prop)) { 2995 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2996 property, sizeof (property), cb->cb_literal) != 0) 2997 propstr = "-"; 2998 else 2999 propstr = property; 3000 right_justify = B_TRUE; 3001 } else { 3002 if (nvlist_lookup_nvlist(userprops, 3003 pl->pl_user_prop, &propval) != 0) 3004 propstr = "-"; 3005 else 3006 verify(nvlist_lookup_string(propval, 3007 ZPROP_VALUE, &propstr) == 0); 3008 right_justify = B_FALSE; 3009 } 3010 3011 /* 3012 * If this is being called in scripted mode, or if this is the 3013 * last column and it is left-justified, don't include a width 3014 * format specifier. 3015 */ 3016 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3017 (void) printf("%s", propstr); 3018 else if (right_justify) 3019 (void) printf("%*s", pl->pl_width, propstr); 3020 else 3021 (void) printf("%-*s", pl->pl_width, propstr); 3022 } 3023 3024 (void) printf("\n"); 3025 } 3026 3027 /* 3028 * Generic callback function to list a dataset or snapshot. 3029 */ 3030 static int 3031 list_callback(zfs_handle_t *zhp, void *data) 3032 { 3033 list_cbdata_t *cbp = data; 3034 3035 if (cbp->cb_first) { 3036 if (!cbp->cb_scripted) 3037 print_header(cbp); 3038 cbp->cb_first = B_FALSE; 3039 } 3040 3041 print_dataset(zhp, cbp); 3042 3043 return (0); 3044 } 3045 3046 static int 3047 zfs_do_list(int argc, char **argv) 3048 { 3049 int c; 3050 static char default_fields[] = 3051 "name,used,available,referenced,mountpoint"; 3052 int types = ZFS_TYPE_DATASET; 3053 boolean_t types_specified = B_FALSE; 3054 char *fields = NULL; 3055 list_cbdata_t cb = { 0 }; 3056 char *value; 3057 int limit = 0; 3058 int ret = 0; 3059 zfs_sort_column_t *sortcol = NULL; 3060 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3061 3062 /* check options */ 3063 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3064 switch (c) { 3065 case 'o': 3066 fields = optarg; 3067 break; 3068 case 'p': 3069 cb.cb_literal = B_TRUE; 3070 flags |= ZFS_ITER_LITERAL_PROPS; 3071 break; 3072 case 'd': 3073 limit = parse_depth(optarg, &flags); 3074 break; 3075 case 'r': 3076 flags |= ZFS_ITER_RECURSE; 3077 break; 3078 case 'H': 3079 cb.cb_scripted = B_TRUE; 3080 break; 3081 case 's': 3082 if (zfs_add_sort_column(&sortcol, optarg, 3083 B_FALSE) != 0) { 3084 (void) fprintf(stderr, 3085 gettext("invalid property '%s'\n"), optarg); 3086 usage(B_FALSE); 3087 } 3088 break; 3089 case 'S': 3090 if (zfs_add_sort_column(&sortcol, optarg, 3091 B_TRUE) != 0) { 3092 (void) fprintf(stderr, 3093 gettext("invalid property '%s'\n"), optarg); 3094 usage(B_FALSE); 3095 } 3096 break; 3097 case 't': 3098 types = 0; 3099 types_specified = B_TRUE; 3100 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3101 while (*optarg != '\0') { 3102 static char *type_subopts[] = { "filesystem", 3103 "volume", "snapshot", "snap", "bookmark", 3104 "all", NULL }; 3105 3106 switch (getsubopt(&optarg, type_subopts, 3107 &value)) { 3108 case 0: 3109 types |= ZFS_TYPE_FILESYSTEM; 3110 break; 3111 case 1: 3112 types |= ZFS_TYPE_VOLUME; 3113 break; 3114 case 2: 3115 case 3: 3116 types |= ZFS_TYPE_SNAPSHOT; 3117 break; 3118 case 4: 3119 types |= ZFS_TYPE_BOOKMARK; 3120 break; 3121 case 5: 3122 types = ZFS_TYPE_DATASET | 3123 ZFS_TYPE_BOOKMARK; 3124 break; 3125 default: 3126 (void) fprintf(stderr, 3127 gettext("invalid type '%s'\n"), 3128 value); 3129 usage(B_FALSE); 3130 } 3131 } 3132 break; 3133 case ':': 3134 (void) fprintf(stderr, gettext("missing argument for " 3135 "'%c' option\n"), optopt); 3136 usage(B_FALSE); 3137 break; 3138 case '?': 3139 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3140 optopt); 3141 usage(B_FALSE); 3142 } 3143 } 3144 3145 argc -= optind; 3146 argv += optind; 3147 3148 if (fields == NULL) 3149 fields = default_fields; 3150 3151 /* 3152 * If we are only going to list snapshot names and sort by name, 3153 * then we can use faster version. 3154 */ 3155 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3156 flags |= ZFS_ITER_SIMPLE; 3157 3158 /* 3159 * If "-o space" and no types were specified, don't display snapshots. 3160 */ 3161 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3162 types &= ~ZFS_TYPE_SNAPSHOT; 3163 3164 /* 3165 * If the user specifies '-o all', the zprop_get_list() doesn't 3166 * normally include the name of the dataset. For 'zfs list', we always 3167 * want this property to be first. 3168 */ 3169 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3170 != 0) 3171 usage(B_FALSE); 3172 3173 cb.cb_first = B_TRUE; 3174 3175 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3176 limit, list_callback, &cb); 3177 3178 zprop_free_list(cb.cb_proplist); 3179 zfs_free_sort_columns(sortcol); 3180 3181 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3182 (void) printf(gettext("no datasets available\n")); 3183 3184 return (ret); 3185 } 3186 3187 /* 3188 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3189 * zfs rename [-f] -p <fs | vol> <fs | vol> 3190 * zfs rename -r <snap> <snap> 3191 * 3192 * Renames the given dataset to another of the same type. 3193 * 3194 * The '-p' flag creates all the non-existing ancestors of the target first. 3195 */ 3196 /* ARGSUSED */ 3197 static int 3198 zfs_do_rename(int argc, char **argv) 3199 { 3200 zfs_handle_t *zhp; 3201 int c; 3202 int ret = 0; 3203 boolean_t recurse = B_FALSE; 3204 boolean_t parents = B_FALSE; 3205 boolean_t force_unmount = B_FALSE; 3206 3207 /* check options */ 3208 while ((c = getopt(argc, argv, "prf")) != -1) { 3209 switch (c) { 3210 case 'p': 3211 parents = B_TRUE; 3212 break; 3213 case 'r': 3214 recurse = B_TRUE; 3215 break; 3216 case 'f': 3217 force_unmount = B_TRUE; 3218 break; 3219 case '?': 3220 default: 3221 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3222 optopt); 3223 usage(B_FALSE); 3224 } 3225 } 3226 3227 argc -= optind; 3228 argv += optind; 3229 3230 /* check number of arguments */ 3231 if (argc < 1) { 3232 (void) fprintf(stderr, gettext("missing source dataset " 3233 "argument\n")); 3234 usage(B_FALSE); 3235 } 3236 if (argc < 2) { 3237 (void) fprintf(stderr, gettext("missing target dataset " 3238 "argument\n")); 3239 usage(B_FALSE); 3240 } 3241 if (argc > 2) { 3242 (void) fprintf(stderr, gettext("too many arguments\n")); 3243 usage(B_FALSE); 3244 } 3245 3246 if (recurse && parents) { 3247 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3248 "exclusive\n")); 3249 usage(B_FALSE); 3250 } 3251 3252 if (recurse && strchr(argv[0], '@') == 0) { 3253 (void) fprintf(stderr, gettext("source dataset for recursive " 3254 "rename must be a snapshot\n")); 3255 usage(B_FALSE); 3256 } 3257 3258 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3259 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3260 return (1); 3261 3262 /* If we were asked and the name looks good, try to create ancestors. */ 3263 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3264 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3265 zfs_close(zhp); 3266 return (1); 3267 } 3268 3269 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3270 3271 zfs_close(zhp); 3272 return (ret); 3273 } 3274 3275 /* 3276 * zfs promote <fs> 3277 * 3278 * Promotes the given clone fs to be the parent 3279 */ 3280 /* ARGSUSED */ 3281 static int 3282 zfs_do_promote(int argc, char **argv) 3283 { 3284 zfs_handle_t *zhp; 3285 int ret = 0; 3286 3287 /* check options */ 3288 if (argc > 1 && argv[1][0] == '-') { 3289 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3290 argv[1][1]); 3291 usage(B_FALSE); 3292 } 3293 3294 /* check number of arguments */ 3295 if (argc < 2) { 3296 (void) fprintf(stderr, gettext("missing clone filesystem" 3297 " argument\n")); 3298 usage(B_FALSE); 3299 } 3300 if (argc > 2) { 3301 (void) fprintf(stderr, gettext("too many arguments\n")); 3302 usage(B_FALSE); 3303 } 3304 3305 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3306 if (zhp == NULL) 3307 return (1); 3308 3309 ret = (zfs_promote(zhp) != 0); 3310 3311 3312 zfs_close(zhp); 3313 return (ret); 3314 } 3315 3316 /* 3317 * zfs rollback [-rRf] <snapshot> 3318 * 3319 * -r Delete any intervening snapshots before doing rollback 3320 * -R Delete any snapshots and their clones 3321 * -f ignored for backwards compatability 3322 * 3323 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3324 * since then and making it the active dataset. If more recent snapshots exist, 3325 * the command will complain unless the '-r' flag is given. 3326 */ 3327 typedef struct rollback_cbdata { 3328 uint64_t cb_create; 3329 boolean_t cb_first; 3330 int cb_doclones; 3331 char *cb_target; 3332 int cb_error; 3333 boolean_t cb_recurse; 3334 } rollback_cbdata_t; 3335 3336 static int 3337 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3338 { 3339 rollback_cbdata_t *cbp = data; 3340 3341 if (cbp->cb_first && cbp->cb_recurse) { 3342 (void) fprintf(stderr, gettext("cannot rollback to " 3343 "'%s': clones of previous snapshots exist\n"), 3344 cbp->cb_target); 3345 (void) fprintf(stderr, gettext("use '-R' to " 3346 "force deletion of the following clones and " 3347 "dependents:\n")); 3348 cbp->cb_first = 0; 3349 cbp->cb_error = 1; 3350 } 3351 3352 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3353 3354 zfs_close(zhp); 3355 return (0); 3356 } 3357 3358 /* 3359 * Report any snapshots more recent than the one specified. Used when '-r' is 3360 * not specified. We reuse this same callback for the snapshot dependents - if 3361 * 'cb_dependent' is set, then this is a dependent and we should report it 3362 * without checking the transaction group. 3363 */ 3364 static int 3365 rollback_check(zfs_handle_t *zhp, void *data) 3366 { 3367 rollback_cbdata_t *cbp = data; 3368 3369 if (cbp->cb_doclones) { 3370 zfs_close(zhp); 3371 return (0); 3372 } 3373 3374 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3375 if (cbp->cb_first && !cbp->cb_recurse) { 3376 (void) fprintf(stderr, gettext("cannot " 3377 "rollback to '%s': more recent snapshots " 3378 "or bookmarks exist\n"), 3379 cbp->cb_target); 3380 (void) fprintf(stderr, gettext("use '-r' to " 3381 "force deletion of the following " 3382 "snapshots and bookmarks:\n")); 3383 cbp->cb_first = 0; 3384 cbp->cb_error = 1; 3385 } 3386 3387 if (cbp->cb_recurse) { 3388 if (zfs_iter_dependents(zhp, B_TRUE, 3389 rollback_check_dependent, cbp) != 0) { 3390 zfs_close(zhp); 3391 return (-1); 3392 } 3393 } else { 3394 (void) fprintf(stderr, "%s\n", 3395 zfs_get_name(zhp)); 3396 } 3397 } 3398 zfs_close(zhp); 3399 return (0); 3400 } 3401 3402 static int 3403 zfs_do_rollback(int argc, char **argv) 3404 { 3405 int ret = 0; 3406 int c; 3407 boolean_t force = B_FALSE; 3408 rollback_cbdata_t cb = { 0 }; 3409 zfs_handle_t *zhp, *snap; 3410 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3411 char *delim; 3412 3413 /* check options */ 3414 while ((c = getopt(argc, argv, "rRf")) != -1) { 3415 switch (c) { 3416 case 'r': 3417 cb.cb_recurse = 1; 3418 break; 3419 case 'R': 3420 cb.cb_recurse = 1; 3421 cb.cb_doclones = 1; 3422 break; 3423 case 'f': 3424 force = B_TRUE; 3425 break; 3426 case '?': 3427 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3428 optopt); 3429 usage(B_FALSE); 3430 } 3431 } 3432 3433 argc -= optind; 3434 argv += optind; 3435 3436 /* check number of arguments */ 3437 if (argc < 1) { 3438 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3439 usage(B_FALSE); 3440 } 3441 if (argc > 1) { 3442 (void) fprintf(stderr, gettext("too many arguments\n")); 3443 usage(B_FALSE); 3444 } 3445 3446 /* open the snapshot */ 3447 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3448 return (1); 3449 3450 /* open the parent dataset */ 3451 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3452 verify((delim = strrchr(parentname, '@')) != NULL); 3453 *delim = '\0'; 3454 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3455 zfs_close(snap); 3456 return (1); 3457 } 3458 3459 /* 3460 * Check for more recent snapshots and/or clones based on the presence 3461 * of '-r' and '-R'. 3462 */ 3463 cb.cb_target = argv[0]; 3464 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3465 cb.cb_first = B_TRUE; 3466 cb.cb_error = 0; 3467 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3468 goto out; 3469 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3470 goto out; 3471 3472 if ((ret = cb.cb_error) != 0) 3473 goto out; 3474 3475 /* 3476 * Rollback parent to the given snapshot. 3477 */ 3478 ret = zfs_rollback(zhp, snap, force); 3479 3480 out: 3481 zfs_close(snap); 3482 zfs_close(zhp); 3483 3484 if (ret == 0) 3485 return (0); 3486 else 3487 return (1); 3488 } 3489 3490 /* 3491 * zfs set property=value ... { fs | snap | vol } ... 3492 * 3493 * Sets the given properties for all datasets specified on the command line. 3494 */ 3495 3496 static int 3497 set_callback(zfs_handle_t *zhp, void *data) 3498 { 3499 nvlist_t *props = data; 3500 3501 if (zfs_prop_set_list(zhp, props) != 0) { 3502 switch (libzfs_errno(g_zfs)) { 3503 case EZFS_MOUNTFAILED: 3504 (void) fprintf(stderr, gettext("property may be set " 3505 "but unable to remount filesystem\n")); 3506 break; 3507 case EZFS_SHARENFSFAILED: 3508 (void) fprintf(stderr, gettext("property may be set " 3509 "but unable to reshare filesystem\n")); 3510 break; 3511 } 3512 return (1); 3513 } 3514 return (0); 3515 } 3516 3517 static int 3518 zfs_do_set(int argc, char **argv) 3519 { 3520 nvlist_t *props = NULL; 3521 int ds_start = -1; /* argv idx of first dataset arg */ 3522 int ret = 0; 3523 3524 /* check for options */ 3525 if (argc > 1 && argv[1][0] == '-') { 3526 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3527 argv[1][1]); 3528 usage(B_FALSE); 3529 } 3530 3531 /* check number of arguments */ 3532 if (argc < 2) { 3533 (void) fprintf(stderr, gettext("missing arguments\n")); 3534 usage(B_FALSE); 3535 } 3536 if (argc < 3) { 3537 if (strchr(argv[1], '=') == NULL) { 3538 (void) fprintf(stderr, gettext("missing property=value " 3539 "argument(s)\n")); 3540 } else { 3541 (void) fprintf(stderr, gettext("missing dataset " 3542 "name(s)\n")); 3543 } 3544 usage(B_FALSE); 3545 } 3546 3547 /* validate argument order: prop=val args followed by dataset args */ 3548 for (int i = 1; i < argc; i++) { 3549 if (strchr(argv[i], '=') != NULL) { 3550 if (ds_start > 0) { 3551 /* out-of-order prop=val argument */ 3552 (void) fprintf(stderr, gettext("invalid " 3553 "argument order\n"), i); 3554 usage(B_FALSE); 3555 } 3556 } else if (ds_start < 0) { 3557 ds_start = i; 3558 } 3559 } 3560 if (ds_start < 0) { 3561 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3562 usage(B_FALSE); 3563 } 3564 3565 /* Populate a list of property settings */ 3566 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3567 nomem(); 3568 for (int i = 1; i < ds_start; i++) { 3569 if ((ret = parseprop(props, argv[i])) != 0) 3570 goto error; 3571 } 3572 3573 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3574 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3575 3576 error: 3577 nvlist_free(props); 3578 return (ret); 3579 } 3580 3581 typedef struct snap_cbdata { 3582 nvlist_t *sd_nvl; 3583 boolean_t sd_recursive; 3584 const char *sd_snapname; 3585 } snap_cbdata_t; 3586 3587 static int 3588 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3589 { 3590 snap_cbdata_t *sd = arg; 3591 char *name; 3592 int rv = 0; 3593 int error; 3594 3595 if (sd->sd_recursive && 3596 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3597 zfs_close(zhp); 3598 return (0); 3599 } 3600 3601 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3602 if (error == -1) 3603 nomem(); 3604 fnvlist_add_boolean(sd->sd_nvl, name); 3605 free(name); 3606 3607 if (sd->sd_recursive) 3608 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3609 zfs_close(zhp); 3610 return (rv); 3611 } 3612 3613 /* 3614 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3615 * 3616 * Creates a snapshot with the given name. While functionally equivalent to 3617 * 'zfs create', it is a separate command to differentiate intent. 3618 */ 3619 static int 3620 zfs_do_snapshot(int argc, char **argv) 3621 { 3622 int ret = 0; 3623 char c; 3624 nvlist_t *props; 3625 snap_cbdata_t sd = { 0 }; 3626 boolean_t multiple_snaps = B_FALSE; 3627 3628 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3629 nomem(); 3630 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3631 nomem(); 3632 3633 /* check options */ 3634 while ((c = getopt(argc, argv, "ro:")) != -1) { 3635 switch (c) { 3636 case 'o': 3637 if (parseprop(props, optarg) != 0) 3638 return (1); 3639 break; 3640 case 'r': 3641 sd.sd_recursive = B_TRUE; 3642 multiple_snaps = B_TRUE; 3643 break; 3644 case '?': 3645 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3646 optopt); 3647 goto usage; 3648 } 3649 } 3650 3651 argc -= optind; 3652 argv += optind; 3653 3654 /* check number of arguments */ 3655 if (argc < 1) { 3656 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3657 goto usage; 3658 } 3659 3660 if (argc > 1) 3661 multiple_snaps = B_TRUE; 3662 for (; argc > 0; argc--, argv++) { 3663 char *atp; 3664 zfs_handle_t *zhp; 3665 3666 atp = strchr(argv[0], '@'); 3667 if (atp == NULL) 3668 goto usage; 3669 *atp = '\0'; 3670 sd.sd_snapname = atp + 1; 3671 zhp = zfs_open(g_zfs, argv[0], 3672 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3673 if (zhp == NULL) 3674 goto usage; 3675 if (zfs_snapshot_cb(zhp, &sd) != 0) 3676 goto usage; 3677 } 3678 3679 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3680 nvlist_free(sd.sd_nvl); 3681 nvlist_free(props); 3682 if (ret != 0 && multiple_snaps) 3683 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3684 return (ret != 0); 3685 3686 usage: 3687 nvlist_free(sd.sd_nvl); 3688 nvlist_free(props); 3689 usage(B_FALSE); 3690 return (-1); 3691 } 3692 3693 /* 3694 * Send a backup stream to stdout. 3695 */ 3696 static int 3697 zfs_do_send(int argc, char **argv) 3698 { 3699 char *fromname = NULL; 3700 char *toname = NULL; 3701 char *resume_token = NULL; 3702 char *cp; 3703 zfs_handle_t *zhp; 3704 sendflags_t flags = { 0 }; 3705 int c, err; 3706 nvlist_t *dbgnv = NULL; 3707 boolean_t extraverbose = B_FALSE; 3708 3709 struct option long_options[] = { 3710 {"replicate", no_argument, NULL, 'R'}, 3711 {"props", no_argument, NULL, 'p'}, 3712 {"parsable", no_argument, NULL, 'P'}, 3713 {"dedup", no_argument, NULL, 'D'}, 3714 {"verbose", no_argument, NULL, 'v'}, 3715 {"dryrun", no_argument, NULL, 'n'}, 3716 {"large-block", no_argument, NULL, 'L'}, 3717 {"embed", no_argument, NULL, 'e'}, 3718 {"resume", required_argument, NULL, 't'}, 3719 {"compressed", no_argument, NULL, 'c'}, 3720 {0, 0, 0, 0} 3721 }; 3722 3723 /* check options */ 3724 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options, 3725 NULL)) != -1) { 3726 switch (c) { 3727 case 'i': 3728 if (fromname) 3729 usage(B_FALSE); 3730 fromname = optarg; 3731 break; 3732 case 'I': 3733 if (fromname) 3734 usage(B_FALSE); 3735 fromname = optarg; 3736 flags.doall = B_TRUE; 3737 break; 3738 case 'R': 3739 flags.replicate = B_TRUE; 3740 break; 3741 case 'p': 3742 flags.props = B_TRUE; 3743 break; 3744 case 'P': 3745 flags.parsable = B_TRUE; 3746 flags.verbose = B_TRUE; 3747 break; 3748 case 'v': 3749 if (flags.verbose) 3750 extraverbose = B_TRUE; 3751 flags.verbose = B_TRUE; 3752 flags.progress = B_TRUE; 3753 break; 3754 case 'D': 3755 flags.dedup = B_TRUE; 3756 break; 3757 case 'n': 3758 flags.dryrun = B_TRUE; 3759 break; 3760 case 'L': 3761 flags.largeblock = B_TRUE; 3762 break; 3763 case 'e': 3764 flags.embed_data = B_TRUE; 3765 break; 3766 case 't': 3767 resume_token = optarg; 3768 break; 3769 case 'c': 3770 flags.compress = B_TRUE; 3771 break; 3772 case ':': 3773 /* 3774 * If a parameter was not passed, optopt contains the 3775 * value that would normally lead us into the 3776 * appropriate case statement. If it's > 256, then this 3777 * must be a longopt and we should look at argv to get 3778 * the string. Otherwise it's just the character, so we 3779 * should use it directly. 3780 */ 3781 if (optopt <= UINT8_MAX) { 3782 (void) fprintf(stderr, 3783 gettext("missing argument for '%c' " 3784 "option\n"), optopt); 3785 } else { 3786 (void) fprintf(stderr, 3787 gettext("missing argument for '%s' " 3788 "option\n"), argv[optind - 1]); 3789 } 3790 usage(B_FALSE); 3791 break; 3792 case '?': 3793 /*FALLTHROUGH*/ 3794 default: 3795 /* 3796 * If an invalid flag was passed, optopt contains the 3797 * character if it was a short flag, or 0 if it was a 3798 * longopt. 3799 */ 3800 if (optopt != 0) { 3801 (void) fprintf(stderr, 3802 gettext("invalid option '%c'\n"), optopt); 3803 } else { 3804 (void) fprintf(stderr, 3805 gettext("invalid option '%s'\n"), 3806 argv[optind - 1]); 3807 3808 } 3809 usage(B_FALSE); 3810 } 3811 } 3812 3813 argc -= optind; 3814 argv += optind; 3815 3816 if (resume_token != NULL) { 3817 if (fromname != NULL || flags.replicate || flags.props || 3818 flags.dedup) { 3819 (void) fprintf(stderr, 3820 gettext("invalid flags combined with -t\n")); 3821 usage(B_FALSE); 3822 } 3823 if (argc != 0) { 3824 (void) fprintf(stderr, gettext("no additional " 3825 "arguments are permitted with -t\n")); 3826 usage(B_FALSE); 3827 } 3828 } else { 3829 if (argc < 1) { 3830 (void) fprintf(stderr, 3831 gettext("missing snapshot argument\n")); 3832 usage(B_FALSE); 3833 } 3834 if (argc > 1) { 3835 (void) fprintf(stderr, gettext("too many arguments\n")); 3836 usage(B_FALSE); 3837 } 3838 } 3839 3840 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3841 (void) fprintf(stderr, 3842 gettext("Error: Stream can not be written to a terminal.\n" 3843 "You must redirect standard output.\n")); 3844 return (1); 3845 } 3846 3847 if (resume_token != NULL) { 3848 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3849 resume_token)); 3850 } 3851 3852 /* 3853 * Special case sending a filesystem, or from a bookmark. 3854 */ 3855 if (strchr(argv[0], '@') == NULL || 3856 (fromname && strchr(fromname, '#') != NULL)) { 3857 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3858 enum lzc_send_flags lzc_flags = 0; 3859 3860 if (flags.replicate || flags.doall || flags.props || 3861 flags.dedup || flags.dryrun || flags.verbose || 3862 flags.progress) { 3863 (void) fprintf(stderr, 3864 gettext("Error: " 3865 "Unsupported flag with filesystem or bookmark.\n")); 3866 return (1); 3867 } 3868 3869 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3870 if (zhp == NULL) 3871 return (1); 3872 3873 if (flags.largeblock) 3874 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3875 if (flags.embed_data) 3876 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3877 if (flags.compress) 3878 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 3879 3880 if (fromname != NULL && 3881 (fromname[0] == '#' || fromname[0] == '@')) { 3882 /* 3883 * Incremental source name begins with # or @. 3884 * Default to same fs as target. 3885 */ 3886 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3887 cp = strchr(frombuf, '@'); 3888 if (cp != NULL) 3889 *cp = '\0'; 3890 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3891 fromname = frombuf; 3892 } 3893 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3894 zfs_close(zhp); 3895 return (err != 0); 3896 } 3897 3898 cp = strchr(argv[0], '@'); 3899 *cp = '\0'; 3900 toname = cp + 1; 3901 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3902 if (zhp == NULL) 3903 return (1); 3904 3905 /* 3906 * If they specified the full path to the snapshot, chop off 3907 * everything except the short name of the snapshot, but special 3908 * case if they specify the origin. 3909 */ 3910 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3911 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3912 zprop_source_t src; 3913 3914 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3915 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3916 3917 if (strcmp(origin, fromname) == 0) { 3918 fromname = NULL; 3919 flags.fromorigin = B_TRUE; 3920 } else { 3921 *cp = '\0'; 3922 if (cp != fromname && strcmp(argv[0], fromname)) { 3923 (void) fprintf(stderr, 3924 gettext("incremental source must be " 3925 "in same filesystem\n")); 3926 usage(B_FALSE); 3927 } 3928 fromname = cp + 1; 3929 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3930 (void) fprintf(stderr, 3931 gettext("invalid incremental source\n")); 3932 usage(B_FALSE); 3933 } 3934 } 3935 } 3936 3937 if (flags.replicate && fromname == NULL) 3938 flags.doall = B_TRUE; 3939 3940 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3941 extraverbose ? &dbgnv : NULL); 3942 3943 if (extraverbose && dbgnv != NULL) { 3944 /* 3945 * dump_nvlist prints to stdout, but that's been 3946 * redirected to a file. Make it print to stderr 3947 * instead. 3948 */ 3949 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3950 dump_nvlist(dbgnv, 0); 3951 nvlist_free(dbgnv); 3952 } 3953 zfs_close(zhp); 3954 3955 return (err != 0); 3956 } 3957 3958 /* 3959 * Restore a backup stream from stdin. 3960 */ 3961 static int 3962 zfs_do_receive(int argc, char **argv) 3963 { 3964 int c, err = 0; 3965 recvflags_t flags = { 0 }; 3966 boolean_t abort_resumable = B_FALSE; 3967 3968 nvlist_t *props; 3969 nvpair_t *nvp = NULL; 3970 3971 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3972 nomem(); 3973 3974 /* check options */ 3975 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3976 switch (c) { 3977 case 'o': 3978 if (parseprop(props, optarg) != 0) 3979 return (1); 3980 break; 3981 case 'd': 3982 flags.isprefix = B_TRUE; 3983 break; 3984 case 'e': 3985 flags.isprefix = B_TRUE; 3986 flags.istail = B_TRUE; 3987 break; 3988 case 'n': 3989 flags.dryrun = B_TRUE; 3990 break; 3991 case 'u': 3992 flags.nomount = B_TRUE; 3993 break; 3994 case 'v': 3995 flags.verbose = B_TRUE; 3996 break; 3997 case 's': 3998 flags.resumable = B_TRUE; 3999 break; 4000 case 'F': 4001 flags.force = B_TRUE; 4002 break; 4003 case 'A': 4004 abort_resumable = B_TRUE; 4005 break; 4006 case ':': 4007 (void) fprintf(stderr, gettext("missing argument for " 4008 "'%c' option\n"), optopt); 4009 usage(B_FALSE); 4010 break; 4011 case '?': 4012 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4013 optopt); 4014 usage(B_FALSE); 4015 } 4016 } 4017 4018 argc -= optind; 4019 argv += optind; 4020 4021 /* check number of arguments */ 4022 if (argc < 1) { 4023 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4024 usage(B_FALSE); 4025 } 4026 if (argc > 1) { 4027 (void) fprintf(stderr, gettext("too many arguments\n")); 4028 usage(B_FALSE); 4029 } 4030 4031 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4032 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4033 (void) fprintf(stderr, gettext("invalid option")); 4034 usage(B_FALSE); 4035 } 4036 } 4037 4038 if (abort_resumable) { 4039 if (flags.isprefix || flags.istail || flags.dryrun || 4040 flags.resumable || flags.nomount) { 4041 (void) fprintf(stderr, gettext("invalid option")); 4042 usage(B_FALSE); 4043 } 4044 4045 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4046 (void) snprintf(namebuf, sizeof (namebuf), 4047 "%s/%%recv", argv[0]); 4048 4049 if (zfs_dataset_exists(g_zfs, namebuf, 4050 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4051 zfs_handle_t *zhp = zfs_open(g_zfs, 4052 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4053 if (zhp == NULL) 4054 return (1); 4055 err = zfs_destroy(zhp, B_FALSE); 4056 } else { 4057 zfs_handle_t *zhp = zfs_open(g_zfs, 4058 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4059 if (zhp == NULL) 4060 usage(B_FALSE); 4061 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4062 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4063 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4064 (void) fprintf(stderr, 4065 gettext("'%s' does not have any " 4066 "resumable receive state to abort\n"), 4067 argv[0]); 4068 return (1); 4069 } 4070 err = zfs_destroy(zhp, B_FALSE); 4071 } 4072 4073 return (err != 0); 4074 } 4075 4076 if (isatty(STDIN_FILENO)) { 4077 (void) fprintf(stderr, 4078 gettext("Error: Backup stream can not be read " 4079 "from a terminal.\n" 4080 "You must redirect standard input.\n")); 4081 return (1); 4082 } 4083 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4084 4085 return (err != 0); 4086 } 4087 4088 /* 4089 * allow/unallow stuff 4090 */ 4091 /* copied from zfs/sys/dsl_deleg.h */ 4092 #define ZFS_DELEG_PERM_CREATE "create" 4093 #define ZFS_DELEG_PERM_DESTROY "destroy" 4094 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4095 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4096 #define ZFS_DELEG_PERM_CLONE "clone" 4097 #define ZFS_DELEG_PERM_PROMOTE "promote" 4098 #define ZFS_DELEG_PERM_RENAME "rename" 4099 #define ZFS_DELEG_PERM_MOUNT "mount" 4100 #define ZFS_DELEG_PERM_SHARE "share" 4101 #define ZFS_DELEG_PERM_SEND "send" 4102 #define ZFS_DELEG_PERM_RECEIVE "receive" 4103 #define ZFS_DELEG_PERM_ALLOW "allow" 4104 #define ZFS_DELEG_PERM_USERPROP "userprop" 4105 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4106 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4107 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4108 #define ZFS_DELEG_PERM_USERUSED "userused" 4109 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4110 #define ZFS_DELEG_PERM_HOLD "hold" 4111 #define ZFS_DELEG_PERM_RELEASE "release" 4112 #define ZFS_DELEG_PERM_DIFF "diff" 4113 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4114 4115 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4116 4117 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4118 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4119 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4120 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4121 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4122 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4123 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4124 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4125 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4126 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4127 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4128 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4129 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4130 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4131 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4132 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4133 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4134 4135 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4136 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4137 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4138 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4139 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4140 { NULL, ZFS_DELEG_NOTE_NONE } 4141 }; 4142 4143 /* permission structure */ 4144 typedef struct deleg_perm { 4145 zfs_deleg_who_type_t dp_who_type; 4146 const char *dp_name; 4147 boolean_t dp_local; 4148 boolean_t dp_descend; 4149 } deleg_perm_t; 4150 4151 /* */ 4152 typedef struct deleg_perm_node { 4153 deleg_perm_t dpn_perm; 4154 4155 uu_avl_node_t dpn_avl_node; 4156 } deleg_perm_node_t; 4157 4158 typedef struct fs_perm fs_perm_t; 4159 4160 /* permissions set */ 4161 typedef struct who_perm { 4162 zfs_deleg_who_type_t who_type; 4163 const char *who_name; /* id */ 4164 char who_ug_name[256]; /* user/group name */ 4165 fs_perm_t *who_fsperm; /* uplink */ 4166 4167 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4168 } who_perm_t; 4169 4170 /* */ 4171 typedef struct who_perm_node { 4172 who_perm_t who_perm; 4173 uu_avl_node_t who_avl_node; 4174 } who_perm_node_t; 4175 4176 typedef struct fs_perm_set fs_perm_set_t; 4177 /* fs permissions */ 4178 struct fs_perm { 4179 const char *fsp_name; 4180 4181 uu_avl_t *fsp_sc_avl; /* sets,create */ 4182 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4183 4184 fs_perm_set_t *fsp_set; /* uplink */ 4185 }; 4186 4187 /* */ 4188 typedef struct fs_perm_node { 4189 fs_perm_t fspn_fsperm; 4190 uu_avl_t *fspn_avl; 4191 4192 uu_list_node_t fspn_list_node; 4193 } fs_perm_node_t; 4194 4195 /* top level structure */ 4196 struct fs_perm_set { 4197 uu_list_pool_t *fsps_list_pool; 4198 uu_list_t *fsps_list; /* list of fs_perms */ 4199 4200 uu_avl_pool_t *fsps_named_set_avl_pool; 4201 uu_avl_pool_t *fsps_who_perm_avl_pool; 4202 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4203 }; 4204 4205 static inline const char * 4206 deleg_perm_type(zfs_deleg_note_t note) 4207 { 4208 /* subcommands */ 4209 switch (note) { 4210 /* SUBCOMMANDS */ 4211 /* OTHER */ 4212 case ZFS_DELEG_NOTE_GROUPQUOTA: 4213 case ZFS_DELEG_NOTE_GROUPUSED: 4214 case ZFS_DELEG_NOTE_USERPROP: 4215 case ZFS_DELEG_NOTE_USERQUOTA: 4216 case ZFS_DELEG_NOTE_USERUSED: 4217 /* other */ 4218 return (gettext("other")); 4219 default: 4220 return (gettext("subcommand")); 4221 } 4222 } 4223 4224 static int 4225 who_type2weight(zfs_deleg_who_type_t who_type) 4226 { 4227 int res; 4228 switch (who_type) { 4229 case ZFS_DELEG_NAMED_SET_SETS: 4230 case ZFS_DELEG_NAMED_SET: 4231 res = 0; 4232 break; 4233 case ZFS_DELEG_CREATE_SETS: 4234 case ZFS_DELEG_CREATE: 4235 res = 1; 4236 break; 4237 case ZFS_DELEG_USER_SETS: 4238 case ZFS_DELEG_USER: 4239 res = 2; 4240 break; 4241 case ZFS_DELEG_GROUP_SETS: 4242 case ZFS_DELEG_GROUP: 4243 res = 3; 4244 break; 4245 case ZFS_DELEG_EVERYONE_SETS: 4246 case ZFS_DELEG_EVERYONE: 4247 res = 4; 4248 break; 4249 default: 4250 res = -1; 4251 } 4252 4253 return (res); 4254 } 4255 4256 /* ARGSUSED */ 4257 static int 4258 who_perm_compare(const void *larg, const void *rarg, void *unused) 4259 { 4260 const who_perm_node_t *l = larg; 4261 const who_perm_node_t *r = rarg; 4262 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4263 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4264 int lweight = who_type2weight(ltype); 4265 int rweight = who_type2weight(rtype); 4266 int res = lweight - rweight; 4267 if (res == 0) 4268 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4269 ZFS_MAX_DELEG_NAME-1); 4270 4271 if (res == 0) 4272 return (0); 4273 if (res > 0) 4274 return (1); 4275 else 4276 return (-1); 4277 } 4278 4279 /* ARGSUSED */ 4280 static int 4281 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4282 { 4283 const deleg_perm_node_t *l = larg; 4284 const deleg_perm_node_t *r = rarg; 4285 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4286 ZFS_MAX_DELEG_NAME-1); 4287 4288 if (res == 0) 4289 return (0); 4290 4291 if (res > 0) 4292 return (1); 4293 else 4294 return (-1); 4295 } 4296 4297 static inline void 4298 fs_perm_set_init(fs_perm_set_t *fspset) 4299 { 4300 bzero(fspset, sizeof (fs_perm_set_t)); 4301 4302 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4303 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4304 NULL, UU_DEFAULT)) == NULL) 4305 nomem(); 4306 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4307 UU_DEFAULT)) == NULL) 4308 nomem(); 4309 4310 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4311 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4312 who_perm_node_t, who_avl_node), who_perm_compare, 4313 UU_DEFAULT)) == NULL) 4314 nomem(); 4315 4316 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4317 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4318 who_perm_node_t, who_avl_node), who_perm_compare, 4319 UU_DEFAULT)) == NULL) 4320 nomem(); 4321 4322 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4323 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4324 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4325 == NULL) 4326 nomem(); 4327 } 4328 4329 static inline void fs_perm_fini(fs_perm_t *); 4330 static inline void who_perm_fini(who_perm_t *); 4331 4332 static inline void 4333 fs_perm_set_fini(fs_perm_set_t *fspset) 4334 { 4335 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4336 4337 while (node != NULL) { 4338 fs_perm_node_t *next_node = 4339 uu_list_next(fspset->fsps_list, node); 4340 fs_perm_t *fsperm = &node->fspn_fsperm; 4341 fs_perm_fini(fsperm); 4342 uu_list_remove(fspset->fsps_list, node); 4343 free(node); 4344 node = next_node; 4345 } 4346 4347 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4348 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4349 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4350 } 4351 4352 static inline void 4353 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4354 const char *name) 4355 { 4356 deleg_perm->dp_who_type = type; 4357 deleg_perm->dp_name = name; 4358 } 4359 4360 static inline void 4361 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4362 zfs_deleg_who_type_t type, const char *name) 4363 { 4364 uu_avl_pool_t *pool; 4365 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4366 4367 bzero(who_perm, sizeof (who_perm_t)); 4368 4369 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4370 UU_DEFAULT)) == NULL) 4371 nomem(); 4372 4373 who_perm->who_type = type; 4374 who_perm->who_name = name; 4375 who_perm->who_fsperm = fsperm; 4376 } 4377 4378 static inline void 4379 who_perm_fini(who_perm_t *who_perm) 4380 { 4381 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4382 4383 while (node != NULL) { 4384 deleg_perm_node_t *next_node = 4385 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4386 4387 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4388 free(node); 4389 node = next_node; 4390 } 4391 4392 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4393 } 4394 4395 static inline void 4396 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4397 { 4398 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4399 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4400 4401 bzero(fsperm, sizeof (fs_perm_t)); 4402 4403 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4404 == NULL) 4405 nomem(); 4406 4407 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4408 == NULL) 4409 nomem(); 4410 4411 fsperm->fsp_set = fspset; 4412 fsperm->fsp_name = fsname; 4413 } 4414 4415 static inline void 4416 fs_perm_fini(fs_perm_t *fsperm) 4417 { 4418 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4419 while (node != NULL) { 4420 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4421 node); 4422 who_perm_t *who_perm = &node->who_perm; 4423 who_perm_fini(who_perm); 4424 uu_avl_remove(fsperm->fsp_sc_avl, node); 4425 free(node); 4426 node = next_node; 4427 } 4428 4429 node = uu_avl_first(fsperm->fsp_uge_avl); 4430 while (node != NULL) { 4431 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4432 node); 4433 who_perm_t *who_perm = &node->who_perm; 4434 who_perm_fini(who_perm); 4435 uu_avl_remove(fsperm->fsp_uge_avl, node); 4436 free(node); 4437 node = next_node; 4438 } 4439 4440 uu_avl_destroy(fsperm->fsp_sc_avl); 4441 uu_avl_destroy(fsperm->fsp_uge_avl); 4442 } 4443 4444 static void 4445 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4446 zfs_deleg_who_type_t who_type, const char *name, char locality) 4447 { 4448 uu_avl_index_t idx = 0; 4449 4450 deleg_perm_node_t *found_node = NULL; 4451 deleg_perm_t *deleg_perm = &node->dpn_perm; 4452 4453 deleg_perm_init(deleg_perm, who_type, name); 4454 4455 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4456 == NULL) 4457 uu_avl_insert(avl, node, idx); 4458 else { 4459 node = found_node; 4460 deleg_perm = &node->dpn_perm; 4461 } 4462 4463 4464 switch (locality) { 4465 case ZFS_DELEG_LOCAL: 4466 deleg_perm->dp_local = B_TRUE; 4467 break; 4468 case ZFS_DELEG_DESCENDENT: 4469 deleg_perm->dp_descend = B_TRUE; 4470 break; 4471 case ZFS_DELEG_NA: 4472 break; 4473 default: 4474 assert(B_FALSE); /* invalid locality */ 4475 } 4476 } 4477 4478 static inline int 4479 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4480 { 4481 nvpair_t *nvp = NULL; 4482 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4483 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4484 zfs_deleg_who_type_t who_type = who_perm->who_type; 4485 4486 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4487 const char *name = nvpair_name(nvp); 4488 data_type_t type = nvpair_type(nvp); 4489 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4490 deleg_perm_node_t *node = 4491 safe_malloc(sizeof (deleg_perm_node_t)); 4492 4493 assert(type == DATA_TYPE_BOOLEAN); 4494 4495 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4496 set_deleg_perm_node(avl, node, who_type, name, locality); 4497 } 4498 4499 return (0); 4500 } 4501 4502 static inline int 4503 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4504 { 4505 nvpair_t *nvp = NULL; 4506 fs_perm_set_t *fspset = fsperm->fsp_set; 4507 4508 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4509 nvlist_t *nvl2 = NULL; 4510 const char *name = nvpair_name(nvp); 4511 uu_avl_t *avl = NULL; 4512 uu_avl_pool_t *avl_pool = NULL; 4513 zfs_deleg_who_type_t perm_type = name[0]; 4514 char perm_locality = name[1]; 4515 const char *perm_name = name + 3; 4516 boolean_t is_set = B_TRUE; 4517 who_perm_t *who_perm = NULL; 4518 4519 assert('$' == name[2]); 4520 4521 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4522 return (-1); 4523 4524 switch (perm_type) { 4525 case ZFS_DELEG_CREATE: 4526 case ZFS_DELEG_CREATE_SETS: 4527 case ZFS_DELEG_NAMED_SET: 4528 case ZFS_DELEG_NAMED_SET_SETS: 4529 avl_pool = fspset->fsps_named_set_avl_pool; 4530 avl = fsperm->fsp_sc_avl; 4531 break; 4532 case ZFS_DELEG_USER: 4533 case ZFS_DELEG_USER_SETS: 4534 case ZFS_DELEG_GROUP: 4535 case ZFS_DELEG_GROUP_SETS: 4536 case ZFS_DELEG_EVERYONE: 4537 case ZFS_DELEG_EVERYONE_SETS: 4538 avl_pool = fspset->fsps_who_perm_avl_pool; 4539 avl = fsperm->fsp_uge_avl; 4540 break; 4541 4542 default: 4543 assert(!"unhandled zfs_deleg_who_type_t"); 4544 } 4545 4546 if (is_set) { 4547 who_perm_node_t *found_node = NULL; 4548 who_perm_node_t *node = safe_malloc( 4549 sizeof (who_perm_node_t)); 4550 who_perm = &node->who_perm; 4551 uu_avl_index_t idx = 0; 4552 4553 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4554 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4555 4556 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4557 == NULL) { 4558 if (avl == fsperm->fsp_uge_avl) { 4559 uid_t rid = 0; 4560 struct passwd *p = NULL; 4561 struct group *g = NULL; 4562 const char *nice_name = NULL; 4563 4564 switch (perm_type) { 4565 case ZFS_DELEG_USER_SETS: 4566 case ZFS_DELEG_USER: 4567 rid = atoi(perm_name); 4568 p = getpwuid(rid); 4569 if (p) 4570 nice_name = p->pw_name; 4571 break; 4572 case ZFS_DELEG_GROUP_SETS: 4573 case ZFS_DELEG_GROUP: 4574 rid = atoi(perm_name); 4575 g = getgrgid(rid); 4576 if (g) 4577 nice_name = g->gr_name; 4578 break; 4579 4580 default: 4581 break; 4582 } 4583 4584 if (nice_name != NULL) 4585 (void) strlcpy( 4586 node->who_perm.who_ug_name, 4587 nice_name, 256); 4588 } 4589 4590 uu_avl_insert(avl, node, idx); 4591 } else { 4592 node = found_node; 4593 who_perm = &node->who_perm; 4594 } 4595 } 4596 4597 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4598 } 4599 4600 return (0); 4601 } 4602 4603 static inline int 4604 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4605 { 4606 nvpair_t *nvp = NULL; 4607 uu_avl_index_t idx = 0; 4608 4609 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4610 nvlist_t *nvl2 = NULL; 4611 const char *fsname = nvpair_name(nvp); 4612 data_type_t type = nvpair_type(nvp); 4613 fs_perm_t *fsperm = NULL; 4614 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4615 if (node == NULL) 4616 nomem(); 4617 4618 fsperm = &node->fspn_fsperm; 4619 4620 assert(DATA_TYPE_NVLIST == type); 4621 4622 uu_list_node_init(node, &node->fspn_list_node, 4623 fspset->fsps_list_pool); 4624 4625 idx = uu_list_numnodes(fspset->fsps_list); 4626 fs_perm_init(fsperm, fspset, fsname); 4627 4628 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4629 return (-1); 4630 4631 (void) parse_fs_perm(fsperm, nvl2); 4632 4633 uu_list_insert(fspset->fsps_list, node, idx); 4634 } 4635 4636 return (0); 4637 } 4638 4639 static inline const char * 4640 deleg_perm_comment(zfs_deleg_note_t note) 4641 { 4642 const char *str = ""; 4643 4644 /* subcommands */ 4645 switch (note) { 4646 /* SUBCOMMANDS */ 4647 case ZFS_DELEG_NOTE_ALLOW: 4648 str = gettext("Must also have the permission that is being" 4649 "\n\t\t\t\tallowed"); 4650 break; 4651 case ZFS_DELEG_NOTE_CLONE: 4652 str = gettext("Must also have the 'create' ability and 'mount'" 4653 "\n\t\t\t\tability in the origin file system"); 4654 break; 4655 case ZFS_DELEG_NOTE_CREATE: 4656 str = gettext("Must also have the 'mount' ability"); 4657 break; 4658 case ZFS_DELEG_NOTE_DESTROY: 4659 str = gettext("Must also have the 'mount' ability"); 4660 break; 4661 case ZFS_DELEG_NOTE_DIFF: 4662 str = gettext("Allows lookup of paths within a dataset;" 4663 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4664 "\n\t\t\t\tin order to use zfs diff"); 4665 break; 4666 case ZFS_DELEG_NOTE_HOLD: 4667 str = gettext("Allows adding a user hold to a snapshot"); 4668 break; 4669 case ZFS_DELEG_NOTE_MOUNT: 4670 str = gettext("Allows mount/umount of ZFS datasets"); 4671 break; 4672 case ZFS_DELEG_NOTE_PROMOTE: 4673 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4674 " 'promote' ability in the origin file system"); 4675 break; 4676 case ZFS_DELEG_NOTE_RECEIVE: 4677 str = gettext("Must also have the 'mount' and 'create'" 4678 " ability"); 4679 break; 4680 case ZFS_DELEG_NOTE_RELEASE: 4681 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4682 "might destroy the snapshot"); 4683 break; 4684 case ZFS_DELEG_NOTE_RENAME: 4685 str = gettext("Must also have the 'mount' and 'create'" 4686 "\n\t\t\t\tability in the new parent"); 4687 break; 4688 case ZFS_DELEG_NOTE_ROLLBACK: 4689 str = gettext(""); 4690 break; 4691 case ZFS_DELEG_NOTE_SEND: 4692 str = gettext(""); 4693 break; 4694 case ZFS_DELEG_NOTE_SHARE: 4695 str = gettext("Allows sharing file systems over NFS or SMB" 4696 "\n\t\t\t\tprotocols"); 4697 break; 4698 case ZFS_DELEG_NOTE_SNAPSHOT: 4699 str = gettext(""); 4700 break; 4701 /* 4702 * case ZFS_DELEG_NOTE_VSCAN: 4703 * str = gettext(""); 4704 * break; 4705 */ 4706 /* OTHER */ 4707 case ZFS_DELEG_NOTE_GROUPQUOTA: 4708 str = gettext("Allows accessing any groupquota@... property"); 4709 break; 4710 case ZFS_DELEG_NOTE_GROUPUSED: 4711 str = gettext("Allows reading any groupused@... property"); 4712 break; 4713 case ZFS_DELEG_NOTE_USERPROP: 4714 str = gettext("Allows changing any user property"); 4715 break; 4716 case ZFS_DELEG_NOTE_USERQUOTA: 4717 str = gettext("Allows accessing any userquota@... property"); 4718 break; 4719 case ZFS_DELEG_NOTE_USERUSED: 4720 str = gettext("Allows reading any userused@... property"); 4721 break; 4722 /* other */ 4723 default: 4724 str = ""; 4725 } 4726 4727 return (str); 4728 } 4729 4730 struct allow_opts { 4731 boolean_t local; 4732 boolean_t descend; 4733 boolean_t user; 4734 boolean_t group; 4735 boolean_t everyone; 4736 boolean_t create; 4737 boolean_t set; 4738 boolean_t recursive; /* unallow only */ 4739 boolean_t prt_usage; 4740 4741 boolean_t prt_perms; 4742 char *who; 4743 char *perms; 4744 const char *dataset; 4745 }; 4746 4747 static inline int 4748 prop_cmp(const void *a, const void *b) 4749 { 4750 const char *str1 = *(const char **)a; 4751 const char *str2 = *(const char **)b; 4752 return (strcmp(str1, str2)); 4753 } 4754 4755 static void 4756 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4757 { 4758 const char *opt_desc[] = { 4759 "-h", gettext("show this help message and exit"), 4760 "-l", gettext("set permission locally"), 4761 "-d", gettext("set permission for descents"), 4762 "-u", gettext("set permission for user"), 4763 "-g", gettext("set permission for group"), 4764 "-e", gettext("set permission for everyone"), 4765 "-c", gettext("set create time permission"), 4766 "-s", gettext("define permission set"), 4767 /* unallow only */ 4768 "-r", gettext("remove permissions recursively"), 4769 }; 4770 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4771 size_t allow_size = unallow_size - 2; 4772 const char *props[ZFS_NUM_PROPS]; 4773 int i; 4774 size_t count = 0; 4775 FILE *fp = requested ? stdout : stderr; 4776 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4777 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4778 4779 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4780 HELP_ALLOW)); 4781 (void) fprintf(fp, gettext("Options:\n")); 4782 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4783 const char *opt = opt_desc[i++]; 4784 const char *optdsc = opt_desc[i]; 4785 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4786 } 4787 4788 (void) fprintf(fp, gettext("\nThe following permissions are " 4789 "supported:\n\n")); 4790 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4791 gettext("NOTES")); 4792 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4793 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4794 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4795 const char *perm_type = deleg_perm_type(perm_note); 4796 const char *perm_comment = deleg_perm_comment(perm_note); 4797 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4798 } 4799 4800 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4801 zprop_desc_t *pd = &pdtbl[i]; 4802 if (pd->pd_visible != B_TRUE) 4803 continue; 4804 4805 if (pd->pd_attr == PROP_READONLY) 4806 continue; 4807 4808 props[count++] = pd->pd_name; 4809 } 4810 props[count] = NULL; 4811 4812 qsort(props, count, sizeof (char *), prop_cmp); 4813 4814 for (i = 0; i < count; i++) 4815 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4816 4817 if (msg != NULL) 4818 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4819 4820 exit(requested ? 0 : 2); 4821 } 4822 4823 static inline const char * 4824 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4825 char **permsp) 4826 { 4827 if (un && argc == expected_argc - 1) 4828 *permsp = NULL; 4829 else if (argc == expected_argc) 4830 *permsp = argv[argc - 2]; 4831 else 4832 allow_usage(un, B_FALSE, 4833 gettext("wrong number of parameters\n")); 4834 4835 return (argv[argc - 1]); 4836 } 4837 4838 static void 4839 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4840 { 4841 int uge_sum = opts->user + opts->group + opts->everyone; 4842 int csuge_sum = opts->create + opts->set + uge_sum; 4843 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4844 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4845 4846 if (uge_sum > 1) 4847 allow_usage(un, B_FALSE, 4848 gettext("-u, -g, and -e are mutually exclusive\n")); 4849 4850 if (opts->prt_usage) { 4851 if (argc == 0 && all_sum == 0) 4852 allow_usage(un, B_TRUE, NULL); 4853 else 4854 usage(B_FALSE); 4855 } 4856 4857 if (opts->set) { 4858 if (csuge_sum > 1) 4859 allow_usage(un, B_FALSE, 4860 gettext("invalid options combined with -s\n")); 4861 4862 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4863 if (argv[0][0] != '@') 4864 allow_usage(un, B_FALSE, 4865 gettext("invalid set name: missing '@' prefix\n")); 4866 opts->who = argv[0]; 4867 } else if (opts->create) { 4868 if (ldcsuge_sum > 1) 4869 allow_usage(un, B_FALSE, 4870 gettext("invalid options combined with -c\n")); 4871 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4872 } else if (opts->everyone) { 4873 if (csuge_sum > 1) 4874 allow_usage(un, B_FALSE, 4875 gettext("invalid options combined with -e\n")); 4876 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4877 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4878 == 0) { 4879 opts->everyone = B_TRUE; 4880 argc--; 4881 argv++; 4882 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4883 } else if (argc == 1 && !un) { 4884 opts->prt_perms = B_TRUE; 4885 opts->dataset = argv[argc-1]; 4886 } else { 4887 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4888 opts->who = argv[0]; 4889 } 4890 4891 if (!opts->local && !opts->descend) { 4892 opts->local = B_TRUE; 4893 opts->descend = B_TRUE; 4894 } 4895 } 4896 4897 static void 4898 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4899 const char *who, char *perms, nvlist_t *top_nvl) 4900 { 4901 int i; 4902 char ld[2] = { '\0', '\0' }; 4903 char who_buf[MAXNAMELEN + 32]; 4904 char base_type = '\0'; 4905 char set_type = '\0'; 4906 nvlist_t *base_nvl = NULL; 4907 nvlist_t *set_nvl = NULL; 4908 nvlist_t *nvl; 4909 4910 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4911 nomem(); 4912 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4913 nomem(); 4914 4915 switch (type) { 4916 case ZFS_DELEG_NAMED_SET_SETS: 4917 case ZFS_DELEG_NAMED_SET: 4918 set_type = ZFS_DELEG_NAMED_SET_SETS; 4919 base_type = ZFS_DELEG_NAMED_SET; 4920 ld[0] = ZFS_DELEG_NA; 4921 break; 4922 case ZFS_DELEG_CREATE_SETS: 4923 case ZFS_DELEG_CREATE: 4924 set_type = ZFS_DELEG_CREATE_SETS; 4925 base_type = ZFS_DELEG_CREATE; 4926 ld[0] = ZFS_DELEG_NA; 4927 break; 4928 case ZFS_DELEG_USER_SETS: 4929 case ZFS_DELEG_USER: 4930 set_type = ZFS_DELEG_USER_SETS; 4931 base_type = ZFS_DELEG_USER; 4932 if (local) 4933 ld[0] = ZFS_DELEG_LOCAL; 4934 if (descend) 4935 ld[1] = ZFS_DELEG_DESCENDENT; 4936 break; 4937 case ZFS_DELEG_GROUP_SETS: 4938 case ZFS_DELEG_GROUP: 4939 set_type = ZFS_DELEG_GROUP_SETS; 4940 base_type = ZFS_DELEG_GROUP; 4941 if (local) 4942 ld[0] = ZFS_DELEG_LOCAL; 4943 if (descend) 4944 ld[1] = ZFS_DELEG_DESCENDENT; 4945 break; 4946 case ZFS_DELEG_EVERYONE_SETS: 4947 case ZFS_DELEG_EVERYONE: 4948 set_type = ZFS_DELEG_EVERYONE_SETS; 4949 base_type = ZFS_DELEG_EVERYONE; 4950 if (local) 4951 ld[0] = ZFS_DELEG_LOCAL; 4952 if (descend) 4953 ld[1] = ZFS_DELEG_DESCENDENT; 4954 break; 4955 4956 default: 4957 assert(set_type != '\0' && base_type != '\0'); 4958 } 4959 4960 if (perms != NULL) { 4961 char *curr = perms; 4962 char *end = curr + strlen(perms); 4963 4964 while (curr < end) { 4965 char *delim = strchr(curr, ','); 4966 if (delim == NULL) 4967 delim = end; 4968 else 4969 *delim = '\0'; 4970 4971 if (curr[0] == '@') 4972 nvl = set_nvl; 4973 else 4974 nvl = base_nvl; 4975 4976 (void) nvlist_add_boolean(nvl, curr); 4977 if (delim != end) 4978 *delim = ','; 4979 curr = delim + 1; 4980 } 4981 4982 for (i = 0; i < 2; i++) { 4983 char locality = ld[i]; 4984 if (locality == 0) 4985 continue; 4986 4987 if (!nvlist_empty(base_nvl)) { 4988 if (who != NULL) 4989 (void) snprintf(who_buf, 4990 sizeof (who_buf), "%c%c$%s", 4991 base_type, locality, who); 4992 else 4993 (void) snprintf(who_buf, 4994 sizeof (who_buf), "%c%c$", 4995 base_type, locality); 4996 4997 (void) nvlist_add_nvlist(top_nvl, who_buf, 4998 base_nvl); 4999 } 5000 5001 5002 if (!nvlist_empty(set_nvl)) { 5003 if (who != NULL) 5004 (void) snprintf(who_buf, 5005 sizeof (who_buf), "%c%c$%s", 5006 set_type, locality, who); 5007 else 5008 (void) snprintf(who_buf, 5009 sizeof (who_buf), "%c%c$", 5010 set_type, locality); 5011 5012 (void) nvlist_add_nvlist(top_nvl, who_buf, 5013 set_nvl); 5014 } 5015 } 5016 } else { 5017 for (i = 0; i < 2; i++) { 5018 char locality = ld[i]; 5019 if (locality == 0) 5020 continue; 5021 5022 if (who != NULL) 5023 (void) snprintf(who_buf, sizeof (who_buf), 5024 "%c%c$%s", base_type, locality, who); 5025 else 5026 (void) snprintf(who_buf, sizeof (who_buf), 5027 "%c%c$", base_type, locality); 5028 (void) nvlist_add_boolean(top_nvl, who_buf); 5029 5030 if (who != NULL) 5031 (void) snprintf(who_buf, sizeof (who_buf), 5032 "%c%c$%s", set_type, locality, who); 5033 else 5034 (void) snprintf(who_buf, sizeof (who_buf), 5035 "%c%c$", set_type, locality); 5036 (void) nvlist_add_boolean(top_nvl, who_buf); 5037 } 5038 } 5039 } 5040 5041 static int 5042 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5043 { 5044 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5045 nomem(); 5046 5047 if (opts->set) { 5048 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5049 opts->descend, opts->who, opts->perms, *nvlp); 5050 } else if (opts->create) { 5051 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5052 opts->descend, NULL, opts->perms, *nvlp); 5053 } else if (opts->everyone) { 5054 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5055 opts->descend, NULL, opts->perms, *nvlp); 5056 } else { 5057 char *curr = opts->who; 5058 char *end = curr + strlen(curr); 5059 5060 while (curr < end) { 5061 const char *who; 5062 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5063 char *endch; 5064 char *delim = strchr(curr, ','); 5065 char errbuf[256]; 5066 char id[64]; 5067 struct passwd *p = NULL; 5068 struct group *g = NULL; 5069 5070 uid_t rid; 5071 if (delim == NULL) 5072 delim = end; 5073 else 5074 *delim = '\0'; 5075 5076 rid = (uid_t)strtol(curr, &endch, 0); 5077 if (opts->user) { 5078 who_type = ZFS_DELEG_USER; 5079 if (*endch != '\0') 5080 p = getpwnam(curr); 5081 else 5082 p = getpwuid(rid); 5083 5084 if (p != NULL) 5085 rid = p->pw_uid; 5086 else { 5087 (void) snprintf(errbuf, 256, gettext( 5088 "invalid user %s"), curr); 5089 allow_usage(un, B_TRUE, errbuf); 5090 } 5091 } else if (opts->group) { 5092 who_type = ZFS_DELEG_GROUP; 5093 if (*endch != '\0') 5094 g = getgrnam(curr); 5095 else 5096 g = getgrgid(rid); 5097 5098 if (g != NULL) 5099 rid = g->gr_gid; 5100 else { 5101 (void) snprintf(errbuf, 256, gettext( 5102 "invalid group %s"), curr); 5103 allow_usage(un, B_TRUE, errbuf); 5104 } 5105 } else { 5106 if (*endch != '\0') { 5107 p = getpwnam(curr); 5108 } else { 5109 p = getpwuid(rid); 5110 } 5111 5112 if (p == NULL) { 5113 if (*endch != '\0') { 5114 g = getgrnam(curr); 5115 } else { 5116 g = getgrgid(rid); 5117 } 5118 } 5119 5120 if (p != NULL) { 5121 who_type = ZFS_DELEG_USER; 5122 rid = p->pw_uid; 5123 } else if (g != NULL) { 5124 who_type = ZFS_DELEG_GROUP; 5125 rid = g->gr_gid; 5126 } else { 5127 (void) snprintf(errbuf, 256, gettext( 5128 "invalid user/group %s"), curr); 5129 allow_usage(un, B_TRUE, errbuf); 5130 } 5131 } 5132 5133 (void) sprintf(id, "%u", rid); 5134 who = id; 5135 5136 store_allow_perm(who_type, opts->local, 5137 opts->descend, who, opts->perms, *nvlp); 5138 curr = delim + 1; 5139 } 5140 } 5141 5142 return (0); 5143 } 5144 5145 static void 5146 print_set_creat_perms(uu_avl_t *who_avl) 5147 { 5148 const char *sc_title[] = { 5149 gettext("Permission sets:\n"), 5150 gettext("Create time permissions:\n"), 5151 NULL 5152 }; 5153 const char **title_ptr = sc_title; 5154 who_perm_node_t *who_node = NULL; 5155 int prev_weight = -1; 5156 5157 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5158 who_node = uu_avl_next(who_avl, who_node)) { 5159 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5160 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5161 const char *who_name = who_node->who_perm.who_name; 5162 int weight = who_type2weight(who_type); 5163 boolean_t first = B_TRUE; 5164 deleg_perm_node_t *deleg_node; 5165 5166 if (prev_weight != weight) { 5167 (void) printf(*title_ptr++); 5168 prev_weight = weight; 5169 } 5170 5171 if (who_name == NULL || strnlen(who_name, 1) == 0) 5172 (void) printf("\t"); 5173 else 5174 (void) printf("\t%s ", who_name); 5175 5176 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5177 deleg_node = uu_avl_next(avl, deleg_node)) { 5178 if (first) { 5179 (void) printf("%s", 5180 deleg_node->dpn_perm.dp_name); 5181 first = B_FALSE; 5182 } else 5183 (void) printf(",%s", 5184 deleg_node->dpn_perm.dp_name); 5185 } 5186 5187 (void) printf("\n"); 5188 } 5189 } 5190 5191 static void 5192 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5193 const char *title) 5194 { 5195 who_perm_node_t *who_node = NULL; 5196 boolean_t prt_title = B_TRUE; 5197 uu_avl_walk_t *walk; 5198 5199 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5200 nomem(); 5201 5202 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5203 const char *who_name = who_node->who_perm.who_name; 5204 const char *nice_who_name = who_node->who_perm.who_ug_name; 5205 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5206 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5207 char delim = ' '; 5208 deleg_perm_node_t *deleg_node; 5209 boolean_t prt_who = B_TRUE; 5210 5211 for (deleg_node = uu_avl_first(avl); 5212 deleg_node != NULL; 5213 deleg_node = uu_avl_next(avl, deleg_node)) { 5214 if (local != deleg_node->dpn_perm.dp_local || 5215 descend != deleg_node->dpn_perm.dp_descend) 5216 continue; 5217 5218 if (prt_who) { 5219 const char *who = NULL; 5220 if (prt_title) { 5221 prt_title = B_FALSE; 5222 (void) printf(title); 5223 } 5224 5225 switch (who_type) { 5226 case ZFS_DELEG_USER_SETS: 5227 case ZFS_DELEG_USER: 5228 who = gettext("user"); 5229 if (nice_who_name) 5230 who_name = nice_who_name; 5231 break; 5232 case ZFS_DELEG_GROUP_SETS: 5233 case ZFS_DELEG_GROUP: 5234 who = gettext("group"); 5235 if (nice_who_name) 5236 who_name = nice_who_name; 5237 break; 5238 case ZFS_DELEG_EVERYONE_SETS: 5239 case ZFS_DELEG_EVERYONE: 5240 who = gettext("everyone"); 5241 who_name = NULL; 5242 break; 5243 5244 default: 5245 assert(who != NULL); 5246 } 5247 5248 prt_who = B_FALSE; 5249 if (who_name == NULL) 5250 (void) printf("\t%s", who); 5251 else 5252 (void) printf("\t%s %s", who, who_name); 5253 } 5254 5255 (void) printf("%c%s", delim, 5256 deleg_node->dpn_perm.dp_name); 5257 delim = ','; 5258 } 5259 5260 if (!prt_who) 5261 (void) printf("\n"); 5262 } 5263 5264 uu_avl_walk_end(walk); 5265 } 5266 5267 static void 5268 print_fs_perms(fs_perm_set_t *fspset) 5269 { 5270 fs_perm_node_t *node = NULL; 5271 char buf[MAXNAMELEN + 32]; 5272 const char *dsname = buf; 5273 5274 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5275 node = uu_list_next(fspset->fsps_list, node)) { 5276 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5277 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5278 int left = 0; 5279 5280 (void) snprintf(buf, sizeof (buf), 5281 gettext("---- Permissions on %s "), 5282 node->fspn_fsperm.fsp_name); 5283 (void) printf(dsname); 5284 left = 70 - strlen(buf); 5285 while (left-- > 0) 5286 (void) printf("-"); 5287 (void) printf("\n"); 5288 5289 print_set_creat_perms(sc_avl); 5290 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5291 gettext("Local permissions:\n")); 5292 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5293 gettext("Descendent permissions:\n")); 5294 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5295 gettext("Local+Descendent permissions:\n")); 5296 } 5297 } 5298 5299 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5300 5301 struct deleg_perms { 5302 boolean_t un; 5303 nvlist_t *nvl; 5304 }; 5305 5306 static int 5307 set_deleg_perms(zfs_handle_t *zhp, void *data) 5308 { 5309 struct deleg_perms *perms = (struct deleg_perms *)data; 5310 zfs_type_t zfs_type = zfs_get_type(zhp); 5311 5312 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5313 return (0); 5314 5315 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5316 } 5317 5318 static int 5319 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5320 { 5321 zfs_handle_t *zhp; 5322 nvlist_t *perm_nvl = NULL; 5323 nvlist_t *update_perm_nvl = NULL; 5324 int error = 1; 5325 int c; 5326 struct allow_opts opts = { 0 }; 5327 5328 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5329 5330 /* check opts */ 5331 while ((c = getopt(argc, argv, optstr)) != -1) { 5332 switch (c) { 5333 case 'l': 5334 opts.local = B_TRUE; 5335 break; 5336 case 'd': 5337 opts.descend = B_TRUE; 5338 break; 5339 case 'u': 5340 opts.user = B_TRUE; 5341 break; 5342 case 'g': 5343 opts.group = B_TRUE; 5344 break; 5345 case 'e': 5346 opts.everyone = B_TRUE; 5347 break; 5348 case 's': 5349 opts.set = B_TRUE; 5350 break; 5351 case 'c': 5352 opts.create = B_TRUE; 5353 break; 5354 case 'r': 5355 opts.recursive = B_TRUE; 5356 break; 5357 case ':': 5358 (void) fprintf(stderr, gettext("missing argument for " 5359 "'%c' option\n"), optopt); 5360 usage(B_FALSE); 5361 break; 5362 case 'h': 5363 opts.prt_usage = B_TRUE; 5364 break; 5365 case '?': 5366 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5367 optopt); 5368 usage(B_FALSE); 5369 } 5370 } 5371 5372 argc -= optind; 5373 argv += optind; 5374 5375 /* check arguments */ 5376 parse_allow_args(argc, argv, un, &opts); 5377 5378 /* try to open the dataset */ 5379 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5380 ZFS_TYPE_VOLUME)) == NULL) { 5381 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5382 opts.dataset); 5383 return (-1); 5384 } 5385 5386 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5387 goto cleanup2; 5388 5389 fs_perm_set_init(&fs_perm_set); 5390 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5391 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5392 goto cleanup1; 5393 } 5394 5395 if (opts.prt_perms) 5396 print_fs_perms(&fs_perm_set); 5397 else { 5398 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5399 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5400 goto cleanup0; 5401 5402 if (un && opts.recursive) { 5403 struct deleg_perms data = { un, update_perm_nvl }; 5404 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5405 &data) != 0) 5406 goto cleanup0; 5407 } 5408 } 5409 5410 error = 0; 5411 5412 cleanup0: 5413 nvlist_free(perm_nvl); 5414 nvlist_free(update_perm_nvl); 5415 cleanup1: 5416 fs_perm_set_fini(&fs_perm_set); 5417 cleanup2: 5418 zfs_close(zhp); 5419 5420 return (error); 5421 } 5422 5423 static int 5424 zfs_do_allow(int argc, char **argv) 5425 { 5426 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5427 } 5428 5429 static int 5430 zfs_do_unallow(int argc, char **argv) 5431 { 5432 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5433 } 5434 5435 static int 5436 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5437 { 5438 int errors = 0; 5439 int i; 5440 const char *tag; 5441 boolean_t recursive = B_FALSE; 5442 const char *opts = holding ? "rt" : "r"; 5443 int c; 5444 5445 /* check options */ 5446 while ((c = getopt(argc, argv, opts)) != -1) { 5447 switch (c) { 5448 case 'r': 5449 recursive = B_TRUE; 5450 break; 5451 case '?': 5452 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5453 optopt); 5454 usage(B_FALSE); 5455 } 5456 } 5457 5458 argc -= optind; 5459 argv += optind; 5460 5461 /* check number of arguments */ 5462 if (argc < 2) 5463 usage(B_FALSE); 5464 5465 tag = argv[0]; 5466 --argc; 5467 ++argv; 5468 5469 if (holding && tag[0] == '.') { 5470 /* tags starting with '.' are reserved for libzfs */ 5471 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5472 usage(B_FALSE); 5473 } 5474 5475 for (i = 0; i < argc; ++i) { 5476 zfs_handle_t *zhp; 5477 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5478 const char *delim; 5479 char *path = argv[i]; 5480 5481 delim = strchr(path, '@'); 5482 if (delim == NULL) { 5483 (void) fprintf(stderr, 5484 gettext("'%s' is not a snapshot\n"), path); 5485 ++errors; 5486 continue; 5487 } 5488 (void) strncpy(parent, path, delim - path); 5489 parent[delim - path] = '\0'; 5490 5491 zhp = zfs_open(g_zfs, parent, 5492 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5493 if (zhp == NULL) { 5494 ++errors; 5495 continue; 5496 } 5497 if (holding) { 5498 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5499 ++errors; 5500 } else { 5501 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5502 ++errors; 5503 } 5504 zfs_close(zhp); 5505 } 5506 5507 return (errors != 0); 5508 } 5509 5510 /* 5511 * zfs hold [-r] [-t] <tag> <snap> ... 5512 * 5513 * -r Recursively hold 5514 * 5515 * Apply a user-hold with the given tag to the list of snapshots. 5516 */ 5517 static int 5518 zfs_do_hold(int argc, char **argv) 5519 { 5520 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5521 } 5522 5523 /* 5524 * zfs release [-r] <tag> <snap> ... 5525 * 5526 * -r Recursively release 5527 * 5528 * Release a user-hold with the given tag from the list of snapshots. 5529 */ 5530 static int 5531 zfs_do_release(int argc, char **argv) 5532 { 5533 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5534 } 5535 5536 typedef struct holds_cbdata { 5537 boolean_t cb_recursive; 5538 const char *cb_snapname; 5539 nvlist_t **cb_nvlp; 5540 size_t cb_max_namelen; 5541 size_t cb_max_taglen; 5542 } holds_cbdata_t; 5543 5544 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5545 #define DATETIME_BUF_LEN (32) 5546 /* 5547 * 5548 */ 5549 static void 5550 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5551 { 5552 int i; 5553 nvpair_t *nvp = NULL; 5554 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5555 const char *col; 5556 5557 if (!scripted) { 5558 for (i = 0; i < 3; i++) { 5559 col = gettext(hdr_cols[i]); 5560 if (i < 2) 5561 (void) printf("%-*s ", i ? tagwidth : nwidth, 5562 col); 5563 else 5564 (void) printf("%s\n", col); 5565 } 5566 } 5567 5568 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5569 char *zname = nvpair_name(nvp); 5570 nvlist_t *nvl2; 5571 nvpair_t *nvp2 = NULL; 5572 (void) nvpair_value_nvlist(nvp, &nvl2); 5573 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5574 char tsbuf[DATETIME_BUF_LEN]; 5575 char *tagname = nvpair_name(nvp2); 5576 uint64_t val = 0; 5577 time_t time; 5578 struct tm t; 5579 char sep = scripted ? '\t' : ' '; 5580 size_t sepnum = scripted ? 1 : 2; 5581 5582 (void) nvpair_value_uint64(nvp2, &val); 5583 time = (time_t)val; 5584 (void) localtime_r(&time, &t); 5585 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5586 gettext(STRFTIME_FMT_STR), &t); 5587 5588 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5589 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5590 } 5591 } 5592 } 5593 5594 /* 5595 * Generic callback function to list a dataset or snapshot. 5596 */ 5597 static int 5598 holds_callback(zfs_handle_t *zhp, void *data) 5599 { 5600 holds_cbdata_t *cbp = data; 5601 nvlist_t *top_nvl = *cbp->cb_nvlp; 5602 nvlist_t *nvl = NULL; 5603 nvpair_t *nvp = NULL; 5604 const char *zname = zfs_get_name(zhp); 5605 size_t znamelen = strlen(zname); 5606 5607 if (cbp->cb_recursive) { 5608 const char *snapname; 5609 char *delim = strchr(zname, '@'); 5610 if (delim == NULL) 5611 return (0); 5612 5613 snapname = delim + 1; 5614 if (strcmp(cbp->cb_snapname, snapname)) 5615 return (0); 5616 } 5617 5618 if (zfs_get_holds(zhp, &nvl) != 0) 5619 return (-1); 5620 5621 if (znamelen > cbp->cb_max_namelen) 5622 cbp->cb_max_namelen = znamelen; 5623 5624 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5625 const char *tag = nvpair_name(nvp); 5626 size_t taglen = strlen(tag); 5627 if (taglen > cbp->cb_max_taglen) 5628 cbp->cb_max_taglen = taglen; 5629 } 5630 5631 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5632 } 5633 5634 /* 5635 * zfs holds [-r] <snap> ... 5636 * 5637 * -r Recursively hold 5638 */ 5639 static int 5640 zfs_do_holds(int argc, char **argv) 5641 { 5642 int errors = 0; 5643 int c; 5644 int i; 5645 boolean_t scripted = B_FALSE; 5646 boolean_t recursive = B_FALSE; 5647 const char *opts = "rH"; 5648 nvlist_t *nvl; 5649 5650 int types = ZFS_TYPE_SNAPSHOT; 5651 holds_cbdata_t cb = { 0 }; 5652 5653 int limit = 0; 5654 int ret = 0; 5655 int flags = 0; 5656 5657 /* check options */ 5658 while ((c = getopt(argc, argv, opts)) != -1) { 5659 switch (c) { 5660 case 'r': 5661 recursive = B_TRUE; 5662 break; 5663 case 'H': 5664 scripted = B_TRUE; 5665 break; 5666 case '?': 5667 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5668 optopt); 5669 usage(B_FALSE); 5670 } 5671 } 5672 5673 if (recursive) { 5674 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5675 flags |= ZFS_ITER_RECURSE; 5676 } 5677 5678 argc -= optind; 5679 argv += optind; 5680 5681 /* check number of arguments */ 5682 if (argc < 1) 5683 usage(B_FALSE); 5684 5685 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5686 nomem(); 5687 5688 for (i = 0; i < argc; ++i) { 5689 char *snapshot = argv[i]; 5690 const char *delim; 5691 const char *snapname; 5692 5693 delim = strchr(snapshot, '@'); 5694 if (delim == NULL) { 5695 (void) fprintf(stderr, 5696 gettext("'%s' is not a snapshot\n"), snapshot); 5697 ++errors; 5698 continue; 5699 } 5700 snapname = delim + 1; 5701 if (recursive) 5702 snapshot[delim - snapshot] = '\0'; 5703 5704 cb.cb_recursive = recursive; 5705 cb.cb_snapname = snapname; 5706 cb.cb_nvlp = &nvl; 5707 5708 /* 5709 * 1. collect holds data, set format options 5710 */ 5711 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5712 holds_callback, &cb); 5713 if (ret != 0) 5714 ++errors; 5715 } 5716 5717 /* 5718 * 2. print holds data 5719 */ 5720 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5721 5722 if (nvlist_empty(nvl)) 5723 (void) printf(gettext("no datasets available\n")); 5724 5725 nvlist_free(nvl); 5726 5727 return (0 != errors); 5728 } 5729 5730 #define CHECK_SPINNER 30 5731 #define SPINNER_TIME 3 /* seconds */ 5732 #define MOUNT_TIME 5 /* seconds */ 5733 5734 static int 5735 get_one_dataset(zfs_handle_t *zhp, void *data) 5736 { 5737 static char *spin[] = { "-", "\\", "|", "/" }; 5738 static int spinval = 0; 5739 static int spincheck = 0; 5740 static time_t last_spin_time = (time_t)0; 5741 get_all_cb_t *cbp = data; 5742 zfs_type_t type = zfs_get_type(zhp); 5743 5744 if (cbp->cb_verbose) { 5745 if (--spincheck < 0) { 5746 time_t now = time(NULL); 5747 if (last_spin_time + SPINNER_TIME < now) { 5748 update_progress(spin[spinval++ % 4]); 5749 last_spin_time = now; 5750 } 5751 spincheck = CHECK_SPINNER; 5752 } 5753 } 5754 5755 /* 5756 * Interate over any nested datasets. 5757 */ 5758 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5759 zfs_close(zhp); 5760 return (1); 5761 } 5762 5763 /* 5764 * Skip any datasets whose type does not match. 5765 */ 5766 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5767 zfs_close(zhp); 5768 return (0); 5769 } 5770 libzfs_add_handle(cbp, zhp); 5771 assert(cbp->cb_used <= cbp->cb_alloc); 5772 5773 return (0); 5774 } 5775 5776 static void 5777 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5778 { 5779 get_all_cb_t cb = { 0 }; 5780 cb.cb_verbose = verbose; 5781 cb.cb_getone = get_one_dataset; 5782 5783 if (verbose) 5784 set_progress_header(gettext("Reading ZFS config")); 5785 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5786 5787 *dslist = cb.cb_handles; 5788 *count = cb.cb_used; 5789 5790 if (verbose) 5791 finish_progress(gettext("done.")); 5792 } 5793 5794 /* 5795 * Generic callback for sharing or mounting filesystems. Because the code is so 5796 * similar, we have a common function with an extra parameter to determine which 5797 * mode we are using. 5798 */ 5799 #define OP_SHARE 0x1 5800 #define OP_MOUNT 0x2 5801 5802 /* 5803 * Share or mount a dataset. 5804 */ 5805 static int 5806 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5807 boolean_t explicit, const char *options) 5808 { 5809 char mountpoint[ZFS_MAXPROPLEN]; 5810 char shareopts[ZFS_MAXPROPLEN]; 5811 char smbshareopts[ZFS_MAXPROPLEN]; 5812 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5813 struct mnttab mnt; 5814 uint64_t zoned, canmount; 5815 boolean_t shared_nfs, shared_smb; 5816 5817 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5818 5819 /* 5820 * Check to make sure we can mount/share this dataset. If we 5821 * are in the global zone and the filesystem is exported to a 5822 * local zone, or if we are in a local zone and the 5823 * filesystem is not exported, then it is an error. 5824 */ 5825 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5826 5827 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5828 if (!explicit) 5829 return (0); 5830 5831 (void) fprintf(stderr, gettext("cannot %s '%s': " 5832 "dataset is exported to a local zone\n"), cmdname, 5833 zfs_get_name(zhp)); 5834 return (1); 5835 5836 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5837 if (!explicit) 5838 return (0); 5839 5840 (void) fprintf(stderr, gettext("cannot %s '%s': " 5841 "permission denied\n"), cmdname, 5842 zfs_get_name(zhp)); 5843 return (1); 5844 } 5845 5846 /* 5847 * Ignore any filesystems which don't apply to us. This 5848 * includes those with a legacy mountpoint, or those with 5849 * legacy share options. 5850 */ 5851 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5852 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5853 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5854 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5855 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5856 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5857 5858 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5859 strcmp(smbshareopts, "off") == 0) { 5860 if (!explicit) 5861 return (0); 5862 5863 (void) fprintf(stderr, gettext("cannot share '%s': " 5864 "legacy share\n"), zfs_get_name(zhp)); 5865 (void) fprintf(stderr, gettext("use share(1M) to " 5866 "share this filesystem, or set " 5867 "sharenfs property on\n")); 5868 return (1); 5869 } 5870 5871 /* 5872 * We cannot share or mount legacy filesystems. If the 5873 * shareopts is non-legacy but the mountpoint is legacy, we 5874 * treat it as a legacy share. 5875 */ 5876 if (strcmp(mountpoint, "legacy") == 0) { 5877 if (!explicit) 5878 return (0); 5879 5880 (void) fprintf(stderr, gettext("cannot %s '%s': " 5881 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5882 (void) fprintf(stderr, gettext("use %s(1M) to " 5883 "%s this filesystem\n"), cmdname, cmdname); 5884 return (1); 5885 } 5886 5887 if (strcmp(mountpoint, "none") == 0) { 5888 if (!explicit) 5889 return (0); 5890 5891 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5892 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5893 return (1); 5894 } 5895 5896 /* 5897 * canmount explicit outcome 5898 * on no pass through 5899 * on yes pass through 5900 * off no return 0 5901 * off yes display error, return 1 5902 * noauto no return 0 5903 * noauto yes pass through 5904 */ 5905 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5906 if (canmount == ZFS_CANMOUNT_OFF) { 5907 if (!explicit) 5908 return (0); 5909 5910 (void) fprintf(stderr, gettext("cannot %s '%s': " 5911 "'canmount' property is set to 'off'\n"), cmdname, 5912 zfs_get_name(zhp)); 5913 return (1); 5914 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5915 return (0); 5916 } 5917 5918 /* 5919 * If this filesystem is inconsistent and has a receive resume 5920 * token, we can not mount it. 5921 */ 5922 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5923 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5924 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5925 if (!explicit) 5926 return (0); 5927 5928 (void) fprintf(stderr, gettext("cannot %s '%s': " 5929 "Contains partially-completed state from " 5930 "\"zfs receive -r\", which can be resumed with " 5931 "\"zfs send -t\"\n"), 5932 cmdname, zfs_get_name(zhp)); 5933 return (1); 5934 } 5935 5936 /* 5937 * At this point, we have verified that the mountpoint and/or 5938 * shareopts are appropriate for auto management. If the 5939 * filesystem is already mounted or shared, return (failing 5940 * for explicit requests); otherwise mount or share the 5941 * filesystem. 5942 */ 5943 switch (op) { 5944 case OP_SHARE: 5945 5946 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5947 shared_smb = zfs_is_shared_smb(zhp, NULL); 5948 5949 if ((shared_nfs && shared_smb) || 5950 (shared_nfs && strcmp(shareopts, "on") == 0 && 5951 strcmp(smbshareopts, "off") == 0) || 5952 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5953 strcmp(shareopts, "off") == 0)) { 5954 if (!explicit) 5955 return (0); 5956 5957 (void) fprintf(stderr, gettext("cannot share " 5958 "'%s': filesystem already shared\n"), 5959 zfs_get_name(zhp)); 5960 return (1); 5961 } 5962 5963 if (!zfs_is_mounted(zhp, NULL) && 5964 zfs_mount(zhp, NULL, 0) != 0) 5965 return (1); 5966 5967 if (protocol == NULL) { 5968 if (zfs_shareall(zhp) != 0) 5969 return (1); 5970 } else if (strcmp(protocol, "nfs") == 0) { 5971 if (zfs_share_nfs(zhp)) 5972 return (1); 5973 } else if (strcmp(protocol, "smb") == 0) { 5974 if (zfs_share_smb(zhp)) 5975 return (1); 5976 } else { 5977 (void) fprintf(stderr, gettext("cannot share " 5978 "'%s': invalid share type '%s' " 5979 "specified\n"), 5980 zfs_get_name(zhp), protocol); 5981 return (1); 5982 } 5983 5984 break; 5985 5986 case OP_MOUNT: 5987 if (options == NULL) 5988 mnt.mnt_mntopts = ""; 5989 else 5990 mnt.mnt_mntopts = (char *)options; 5991 5992 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5993 zfs_is_mounted(zhp, NULL)) { 5994 if (!explicit) 5995 return (0); 5996 5997 (void) fprintf(stderr, gettext("cannot mount " 5998 "'%s': filesystem already mounted\n"), 5999 zfs_get_name(zhp)); 6000 return (1); 6001 } 6002 6003 if (zfs_mount(zhp, options, flags) != 0) 6004 return (1); 6005 break; 6006 } 6007 6008 return (0); 6009 } 6010 6011 /* 6012 * Reports progress in the form "(current/total)". Not thread-safe. 6013 */ 6014 static void 6015 report_mount_progress(int current, int total) 6016 { 6017 static time_t last_progress_time = 0; 6018 time_t now = time(NULL); 6019 char info[32]; 6020 6021 /* report 1..n instead of 0..n-1 */ 6022 ++current; 6023 6024 /* display header if we're here for the first time */ 6025 if (current == 1) { 6026 set_progress_header(gettext("Mounting ZFS filesystems")); 6027 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6028 /* too soon to report again */ 6029 return; 6030 } 6031 6032 last_progress_time = now; 6033 6034 (void) sprintf(info, "(%d/%d)", current, total); 6035 6036 if (current == total) 6037 finish_progress(info); 6038 else 6039 update_progress(info); 6040 } 6041 6042 static void 6043 append_options(char *mntopts, char *newopts) 6044 { 6045 int len = strlen(mntopts); 6046 6047 /* original length plus new string to append plus 1 for the comma */ 6048 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6049 (void) fprintf(stderr, gettext("the opts argument for " 6050 "'%c' option is too long (more than %d chars)\n"), 6051 "-o", MNT_LINE_MAX); 6052 usage(B_FALSE); 6053 } 6054 6055 if (*mntopts) 6056 mntopts[len++] = ','; 6057 6058 (void) strcpy(&mntopts[len], newopts); 6059 } 6060 6061 static int 6062 share_mount(int op, int argc, char **argv) 6063 { 6064 int do_all = 0; 6065 boolean_t verbose = B_FALSE; 6066 int c, ret = 0; 6067 char *options = NULL; 6068 int flags = 0; 6069 6070 /* check options */ 6071 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6072 != -1) { 6073 switch (c) { 6074 case 'a': 6075 do_all = 1; 6076 break; 6077 case 'v': 6078 verbose = B_TRUE; 6079 break; 6080 case 'o': 6081 if (*optarg == '\0') { 6082 (void) fprintf(stderr, gettext("empty mount " 6083 "options (-o) specified\n")); 6084 usage(B_FALSE); 6085 } 6086 6087 if (options == NULL) 6088 options = safe_malloc(MNT_LINE_MAX + 1); 6089 6090 /* option validation is done later */ 6091 append_options(options, optarg); 6092 break; 6093 6094 case 'O': 6095 flags |= MS_OVERLAY; 6096 break; 6097 case ':': 6098 (void) fprintf(stderr, gettext("missing argument for " 6099 "'%c' option\n"), optopt); 6100 usage(B_FALSE); 6101 break; 6102 case '?': 6103 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6104 optopt); 6105 usage(B_FALSE); 6106 } 6107 } 6108 6109 argc -= optind; 6110 argv += optind; 6111 6112 /* check number of arguments */ 6113 if (do_all) { 6114 zfs_handle_t **dslist = NULL; 6115 size_t i, count = 0; 6116 char *protocol = NULL; 6117 6118 if (op == OP_SHARE && argc > 0) { 6119 if (strcmp(argv[0], "nfs") != 0 && 6120 strcmp(argv[0], "smb") != 0) { 6121 (void) fprintf(stderr, gettext("share type " 6122 "must be 'nfs' or 'smb'\n")); 6123 usage(B_FALSE); 6124 } 6125 protocol = argv[0]; 6126 argc--; 6127 argv++; 6128 } 6129 6130 if (argc != 0) { 6131 (void) fprintf(stderr, gettext("too many arguments\n")); 6132 usage(B_FALSE); 6133 } 6134 6135 start_progress_timer(); 6136 get_all_datasets(&dslist, &count, verbose); 6137 6138 if (count == 0) 6139 return (0); 6140 6141 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6142 sa_init_selective_arg_t sharearg; 6143 sharearg.zhandle_arr = dslist; 6144 sharearg.zhandle_len = count; 6145 if ((ret = zfs_init_libshare_arg(zfs_get_handle(dslist[0]), 6146 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6147 (void) fprintf(stderr, 6148 gettext("Could not initialize libshare, %d"), ret); 6149 return (ret); 6150 } 6151 6152 for (i = 0; i < count; i++) { 6153 if (verbose) 6154 report_mount_progress(i, count); 6155 6156 if (share_mount_one(dslist[i], op, flags, protocol, 6157 B_FALSE, options) != 0) 6158 ret = 1; 6159 zfs_close(dslist[i]); 6160 } 6161 6162 free(dslist); 6163 } else if (argc == 0) { 6164 struct mnttab entry; 6165 6166 if ((op == OP_SHARE) || (options != NULL)) { 6167 (void) fprintf(stderr, gettext("missing filesystem " 6168 "argument (specify -a for all)\n")); 6169 usage(B_FALSE); 6170 } 6171 6172 /* 6173 * When mount is given no arguments, go through /etc/mnttab and 6174 * display any active ZFS mounts. We hide any snapshots, since 6175 * they are controlled automatically. 6176 */ 6177 rewind(mnttab_file); 6178 while (getmntent(mnttab_file, &entry) == 0) { 6179 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6180 strchr(entry.mnt_special, '@') != NULL) 6181 continue; 6182 6183 (void) printf("%-30s %s\n", entry.mnt_special, 6184 entry.mnt_mountp); 6185 } 6186 6187 } else { 6188 zfs_handle_t *zhp; 6189 6190 if (argc > 1) { 6191 (void) fprintf(stderr, 6192 gettext("too many arguments\n")); 6193 usage(B_FALSE); 6194 } 6195 6196 if ((zhp = zfs_open(g_zfs, argv[0], 6197 ZFS_TYPE_FILESYSTEM)) == NULL) { 6198 ret = 1; 6199 } else { 6200 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6201 options); 6202 zfs_close(zhp); 6203 } 6204 } 6205 6206 return (ret); 6207 } 6208 6209 /* 6210 * zfs mount -a [nfs] 6211 * zfs mount filesystem 6212 * 6213 * Mount all filesystems, or mount the given filesystem. 6214 */ 6215 static int 6216 zfs_do_mount(int argc, char **argv) 6217 { 6218 return (share_mount(OP_MOUNT, argc, argv)); 6219 } 6220 6221 /* 6222 * zfs share -a [nfs | smb] 6223 * zfs share filesystem 6224 * 6225 * Share all filesystems, or share the given filesystem. 6226 */ 6227 static int 6228 zfs_do_share(int argc, char **argv) 6229 { 6230 return (share_mount(OP_SHARE, argc, argv)); 6231 } 6232 6233 typedef struct unshare_unmount_node { 6234 zfs_handle_t *un_zhp; 6235 char *un_mountp; 6236 uu_avl_node_t un_avlnode; 6237 } unshare_unmount_node_t; 6238 6239 /* ARGSUSED */ 6240 static int 6241 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6242 { 6243 const unshare_unmount_node_t *l = larg; 6244 const unshare_unmount_node_t *r = rarg; 6245 6246 return (strcmp(l->un_mountp, r->un_mountp)); 6247 } 6248 6249 /* 6250 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6251 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6252 * and unmount it appropriately. 6253 */ 6254 static int 6255 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6256 { 6257 zfs_handle_t *zhp; 6258 int ret = 0; 6259 struct stat64 statbuf; 6260 struct extmnttab entry; 6261 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6262 ino_t path_inode; 6263 6264 /* 6265 * Search for the path in /etc/mnttab. Rather than looking for the 6266 * specific path, which can be fooled by non-standard paths (i.e. ".." 6267 * or "//"), we stat() the path and search for the corresponding 6268 * (major,minor) device pair. 6269 */ 6270 if (stat64(path, &statbuf) != 0) { 6271 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6272 cmdname, path, strerror(errno)); 6273 return (1); 6274 } 6275 path_inode = statbuf.st_ino; 6276 6277 /* 6278 * Search for the given (major,minor) pair in the mount table. 6279 */ 6280 rewind(mnttab_file); 6281 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6282 if (entry.mnt_major == major(statbuf.st_dev) && 6283 entry.mnt_minor == minor(statbuf.st_dev)) 6284 break; 6285 } 6286 if (ret != 0) { 6287 if (op == OP_SHARE) { 6288 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6289 "currently mounted\n"), cmdname, path); 6290 return (1); 6291 } 6292 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6293 path); 6294 if ((ret = umount2(path, flags)) != 0) 6295 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6296 strerror(errno)); 6297 return (ret != 0); 6298 } 6299 6300 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6301 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6302 "filesystem\n"), cmdname, path); 6303 return (1); 6304 } 6305 6306 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6307 ZFS_TYPE_FILESYSTEM)) == NULL) 6308 return (1); 6309 6310 ret = 1; 6311 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6312 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6313 cmdname, path, strerror(errno)); 6314 goto out; 6315 } else if (statbuf.st_ino != path_inode) { 6316 (void) fprintf(stderr, gettext("cannot " 6317 "%s '%s': not a mountpoint\n"), cmdname, path); 6318 goto out; 6319 } 6320 6321 if (op == OP_SHARE) { 6322 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6323 char smbshare_prop[ZFS_MAXPROPLEN]; 6324 6325 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6326 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6327 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6328 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6329 6330 if (strcmp(nfs_mnt_prop, "off") == 0 && 6331 strcmp(smbshare_prop, "off") == 0) { 6332 (void) fprintf(stderr, gettext("cannot unshare " 6333 "'%s': legacy share\n"), path); 6334 (void) fprintf(stderr, gettext("use " 6335 "unshare(1M) to unshare this filesystem\n")); 6336 } else if (!zfs_is_shared(zhp)) { 6337 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6338 "not currently shared\n"), path); 6339 } else { 6340 ret = zfs_unshareall_bypath(zhp, path); 6341 } 6342 } else { 6343 char mtpt_prop[ZFS_MAXPROPLEN]; 6344 6345 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6346 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6347 6348 if (is_manual) { 6349 ret = zfs_unmount(zhp, NULL, flags); 6350 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6351 (void) fprintf(stderr, gettext("cannot unmount " 6352 "'%s': legacy mountpoint\n"), 6353 zfs_get_name(zhp)); 6354 (void) fprintf(stderr, gettext("use umount(1M) " 6355 "to unmount this filesystem\n")); 6356 } else { 6357 ret = zfs_unmountall(zhp, flags); 6358 } 6359 } 6360 6361 out: 6362 zfs_close(zhp); 6363 6364 return (ret != 0); 6365 } 6366 6367 /* 6368 * Generic callback for unsharing or unmounting a filesystem. 6369 */ 6370 static int 6371 unshare_unmount(int op, int argc, char **argv) 6372 { 6373 int do_all = 0; 6374 int flags = 0; 6375 int ret = 0; 6376 int c; 6377 zfs_handle_t *zhp; 6378 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6379 char sharesmb[ZFS_MAXPROPLEN]; 6380 6381 /* check options */ 6382 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6383 switch (c) { 6384 case 'a': 6385 do_all = 1; 6386 break; 6387 case 'f': 6388 flags = MS_FORCE; 6389 break; 6390 case '?': 6391 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6392 optopt); 6393 usage(B_FALSE); 6394 } 6395 } 6396 6397 argc -= optind; 6398 argv += optind; 6399 6400 if (do_all) { 6401 /* 6402 * We could make use of zfs_for_each() to walk all datasets in 6403 * the system, but this would be very inefficient, especially 6404 * since we would have to linearly search /etc/mnttab for each 6405 * one. Instead, do one pass through /etc/mnttab looking for 6406 * zfs entries and call zfs_unmount() for each one. 6407 * 6408 * Things get a little tricky if the administrator has created 6409 * mountpoints beneath other ZFS filesystems. In this case, we 6410 * have to unmount the deepest filesystems first. To accomplish 6411 * this, we place all the mountpoints in an AVL tree sorted by 6412 * the special type (dataset name), and walk the result in 6413 * reverse to make sure to get any snapshots first. 6414 */ 6415 struct mnttab entry; 6416 uu_avl_pool_t *pool; 6417 uu_avl_t *tree = NULL; 6418 unshare_unmount_node_t *node; 6419 uu_avl_index_t idx; 6420 uu_avl_walk_t *walk; 6421 6422 if (argc != 0) { 6423 (void) fprintf(stderr, gettext("too many arguments\n")); 6424 usage(B_FALSE); 6425 } 6426 6427 if (((pool = uu_avl_pool_create("unmount_pool", 6428 sizeof (unshare_unmount_node_t), 6429 offsetof(unshare_unmount_node_t, un_avlnode), 6430 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6431 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6432 nomem(); 6433 6434 rewind(mnttab_file); 6435 while (getmntent(mnttab_file, &entry) == 0) { 6436 6437 /* ignore non-ZFS entries */ 6438 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6439 continue; 6440 6441 /* ignore snapshots */ 6442 if (strchr(entry.mnt_special, '@') != NULL) 6443 continue; 6444 6445 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6446 ZFS_TYPE_FILESYSTEM)) == NULL) { 6447 ret = 1; 6448 continue; 6449 } 6450 6451 /* 6452 * Ignore datasets that are excluded/restricted by 6453 * parent pool name. 6454 */ 6455 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6456 zfs_close(zhp); 6457 continue; 6458 } 6459 6460 switch (op) { 6461 case OP_SHARE: 6462 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6463 nfs_mnt_prop, 6464 sizeof (nfs_mnt_prop), 6465 NULL, NULL, 0, B_FALSE) == 0); 6466 if (strcmp(nfs_mnt_prop, "off") != 0) 6467 break; 6468 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6469 nfs_mnt_prop, 6470 sizeof (nfs_mnt_prop), 6471 NULL, NULL, 0, B_FALSE) == 0); 6472 if (strcmp(nfs_mnt_prop, "off") == 0) 6473 continue; 6474 break; 6475 case OP_MOUNT: 6476 /* Ignore legacy mounts */ 6477 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6478 nfs_mnt_prop, 6479 sizeof (nfs_mnt_prop), 6480 NULL, NULL, 0, B_FALSE) == 0); 6481 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6482 continue; 6483 /* Ignore canmount=noauto mounts */ 6484 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6485 ZFS_CANMOUNT_NOAUTO) 6486 continue; 6487 default: 6488 break; 6489 } 6490 6491 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6492 node->un_zhp = zhp; 6493 node->un_mountp = safe_strdup(entry.mnt_mountp); 6494 6495 uu_avl_node_init(node, &node->un_avlnode, pool); 6496 6497 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6498 uu_avl_insert(tree, node, idx); 6499 } else { 6500 zfs_close(node->un_zhp); 6501 free(node->un_mountp); 6502 free(node); 6503 } 6504 } 6505 6506 /* 6507 * Walk the AVL tree in reverse, unmounting each filesystem and 6508 * removing it from the AVL tree in the process. 6509 */ 6510 if ((walk = uu_avl_walk_start(tree, 6511 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6512 nomem(); 6513 6514 while ((node = uu_avl_walk_next(walk)) != NULL) { 6515 uu_avl_remove(tree, node); 6516 6517 switch (op) { 6518 case OP_SHARE: 6519 if (zfs_unshareall_bypath(node->un_zhp, 6520 node->un_mountp) != 0) 6521 ret = 1; 6522 break; 6523 6524 case OP_MOUNT: 6525 if (zfs_unmount(node->un_zhp, 6526 node->un_mountp, flags) != 0) 6527 ret = 1; 6528 break; 6529 } 6530 6531 zfs_close(node->un_zhp); 6532 free(node->un_mountp); 6533 free(node); 6534 } 6535 6536 uu_avl_walk_end(walk); 6537 uu_avl_destroy(tree); 6538 uu_avl_pool_destroy(pool); 6539 6540 } else { 6541 if (argc != 1) { 6542 if (argc == 0) 6543 (void) fprintf(stderr, 6544 gettext("missing filesystem argument\n")); 6545 else 6546 (void) fprintf(stderr, 6547 gettext("too many arguments\n")); 6548 usage(B_FALSE); 6549 } 6550 6551 /* 6552 * We have an argument, but it may be a full path or a ZFS 6553 * filesystem. Pass full paths off to unmount_path() (shared by 6554 * manual_unmount), otherwise open the filesystem and pass to 6555 * zfs_unmount(). 6556 */ 6557 if (argv[0][0] == '/') 6558 return (unshare_unmount_path(op, argv[0], 6559 flags, B_FALSE)); 6560 6561 if ((zhp = zfs_open(g_zfs, argv[0], 6562 ZFS_TYPE_FILESYSTEM)) == NULL) 6563 return (1); 6564 6565 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6566 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6567 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6568 NULL, 0, B_FALSE) == 0); 6569 6570 switch (op) { 6571 case OP_SHARE: 6572 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6573 nfs_mnt_prop, 6574 sizeof (nfs_mnt_prop), 6575 NULL, NULL, 0, B_FALSE) == 0); 6576 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6577 sharesmb, sizeof (sharesmb), NULL, NULL, 6578 0, B_FALSE) == 0); 6579 6580 if (strcmp(nfs_mnt_prop, "off") == 0 && 6581 strcmp(sharesmb, "off") == 0) { 6582 (void) fprintf(stderr, gettext("cannot " 6583 "unshare '%s': legacy share\n"), 6584 zfs_get_name(zhp)); 6585 (void) fprintf(stderr, gettext("use " 6586 "unshare(1M) to unshare this " 6587 "filesystem\n")); 6588 ret = 1; 6589 } else if (!zfs_is_shared(zhp)) { 6590 (void) fprintf(stderr, gettext("cannot " 6591 "unshare '%s': not currently " 6592 "shared\n"), zfs_get_name(zhp)); 6593 ret = 1; 6594 } else if (zfs_unshareall(zhp) != 0) { 6595 ret = 1; 6596 } 6597 break; 6598 6599 case OP_MOUNT: 6600 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6601 (void) fprintf(stderr, gettext("cannot " 6602 "unmount '%s': legacy " 6603 "mountpoint\n"), zfs_get_name(zhp)); 6604 (void) fprintf(stderr, gettext("use " 6605 "umount(1M) to unmount this " 6606 "filesystem\n")); 6607 ret = 1; 6608 } else if (!zfs_is_mounted(zhp, NULL)) { 6609 (void) fprintf(stderr, gettext("cannot " 6610 "unmount '%s': not currently " 6611 "mounted\n"), 6612 zfs_get_name(zhp)); 6613 ret = 1; 6614 } else if (zfs_unmountall(zhp, flags) != 0) { 6615 ret = 1; 6616 } 6617 break; 6618 } 6619 6620 zfs_close(zhp); 6621 } 6622 6623 return (ret); 6624 } 6625 6626 /* 6627 * zfs unmount -a 6628 * zfs unmount filesystem 6629 * 6630 * Unmount all filesystems, or a specific ZFS filesystem. 6631 */ 6632 static int 6633 zfs_do_unmount(int argc, char **argv) 6634 { 6635 return (unshare_unmount(OP_MOUNT, argc, argv)); 6636 } 6637 6638 /* 6639 * zfs unshare -a 6640 * zfs unshare filesystem 6641 * 6642 * Unshare all filesystems, or a specific ZFS filesystem. 6643 */ 6644 static int 6645 zfs_do_unshare(int argc, char **argv) 6646 { 6647 return (unshare_unmount(OP_SHARE, argc, argv)); 6648 } 6649 6650 /* 6651 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6652 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6653 */ 6654 static int 6655 manual_mount(int argc, char **argv) 6656 { 6657 zfs_handle_t *zhp; 6658 char mountpoint[ZFS_MAXPROPLEN]; 6659 char mntopts[MNT_LINE_MAX] = { '\0' }; 6660 int ret = 0; 6661 int c; 6662 int flags = 0; 6663 char *dataset, *path; 6664 6665 /* check options */ 6666 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6667 switch (c) { 6668 case 'o': 6669 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6670 break; 6671 case 'O': 6672 flags |= MS_OVERLAY; 6673 break; 6674 case 'm': 6675 flags |= MS_NOMNTTAB; 6676 break; 6677 case ':': 6678 (void) fprintf(stderr, gettext("missing argument for " 6679 "'%c' option\n"), optopt); 6680 usage(B_FALSE); 6681 break; 6682 case '?': 6683 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6684 optopt); 6685 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6686 "<path>\n")); 6687 return (2); 6688 } 6689 } 6690 6691 argc -= optind; 6692 argv += optind; 6693 6694 /* check that we only have two arguments */ 6695 if (argc != 2) { 6696 if (argc == 0) 6697 (void) fprintf(stderr, gettext("missing dataset " 6698 "argument\n")); 6699 else if (argc == 1) 6700 (void) fprintf(stderr, 6701 gettext("missing mountpoint argument\n")); 6702 else 6703 (void) fprintf(stderr, gettext("too many arguments\n")); 6704 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6705 return (2); 6706 } 6707 6708 dataset = argv[0]; 6709 path = argv[1]; 6710 6711 /* try to open the dataset */ 6712 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6713 return (1); 6714 6715 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6716 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6717 6718 /* check for legacy mountpoint and complain appropriately */ 6719 ret = 0; 6720 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6721 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6722 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6723 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6724 strerror(errno)); 6725 ret = 1; 6726 } 6727 } else { 6728 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6729 "mounted using 'mount -F zfs'\n"), dataset); 6730 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6731 "instead.\n"), path); 6732 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6733 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6734 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6735 "information.\n")); 6736 ret = 1; 6737 } 6738 6739 return (ret); 6740 } 6741 6742 /* 6743 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6744 * unmounts of non-legacy filesystems, as this is the dominant administrative 6745 * interface. 6746 */ 6747 static int 6748 manual_unmount(int argc, char **argv) 6749 { 6750 int flags = 0; 6751 int c; 6752 6753 /* check options */ 6754 while ((c = getopt(argc, argv, "f")) != -1) { 6755 switch (c) { 6756 case 'f': 6757 flags = MS_FORCE; 6758 break; 6759 case '?': 6760 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6761 optopt); 6762 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6763 "<path>\n")); 6764 return (2); 6765 } 6766 } 6767 6768 argc -= optind; 6769 argv += optind; 6770 6771 /* check arguments */ 6772 if (argc != 1) { 6773 if (argc == 0) 6774 (void) fprintf(stderr, gettext("missing path " 6775 "argument\n")); 6776 else 6777 (void) fprintf(stderr, gettext("too many arguments\n")); 6778 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6779 return (2); 6780 } 6781 6782 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6783 } 6784 6785 static int 6786 find_command_idx(char *command, int *idx) 6787 { 6788 int i; 6789 6790 for (i = 0; i < NCOMMAND; i++) { 6791 if (command_table[i].name == NULL) 6792 continue; 6793 6794 if (strcmp(command, command_table[i].name) == 0) { 6795 *idx = i; 6796 return (0); 6797 } 6798 } 6799 return (1); 6800 } 6801 6802 static int 6803 zfs_do_diff(int argc, char **argv) 6804 { 6805 zfs_handle_t *zhp; 6806 int flags = 0; 6807 char *tosnap = NULL; 6808 char *fromsnap = NULL; 6809 char *atp, *copy; 6810 int err = 0; 6811 int c; 6812 6813 while ((c = getopt(argc, argv, "FHt")) != -1) { 6814 switch (c) { 6815 case 'F': 6816 flags |= ZFS_DIFF_CLASSIFY; 6817 break; 6818 case 'H': 6819 flags |= ZFS_DIFF_PARSEABLE; 6820 break; 6821 case 't': 6822 flags |= ZFS_DIFF_TIMESTAMP; 6823 break; 6824 default: 6825 (void) fprintf(stderr, 6826 gettext("invalid option '%c'\n"), optopt); 6827 usage(B_FALSE); 6828 } 6829 } 6830 6831 argc -= optind; 6832 argv += optind; 6833 6834 if (argc < 1) { 6835 (void) fprintf(stderr, 6836 gettext("must provide at least one snapshot name\n")); 6837 usage(B_FALSE); 6838 } 6839 6840 if (argc > 2) { 6841 (void) fprintf(stderr, gettext("too many arguments\n")); 6842 usage(B_FALSE); 6843 } 6844 6845 fromsnap = argv[0]; 6846 tosnap = (argc == 2) ? argv[1] : NULL; 6847 6848 copy = NULL; 6849 if (*fromsnap != '@') 6850 copy = strdup(fromsnap); 6851 else if (tosnap) 6852 copy = strdup(tosnap); 6853 if (copy == NULL) 6854 usage(B_FALSE); 6855 6856 if ((atp = strchr(copy, '@')) != NULL) 6857 *atp = '\0'; 6858 6859 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6860 return (1); 6861 6862 free(copy); 6863 6864 /* 6865 * Ignore SIGPIPE so that the library can give us 6866 * information on any failure 6867 */ 6868 (void) sigignore(SIGPIPE); 6869 6870 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6871 6872 zfs_close(zhp); 6873 6874 return (err != 0); 6875 } 6876 6877 /* 6878 * zfs bookmark <fs@snap> <fs#bmark> 6879 * 6880 * Creates a bookmark with the given name from the given snapshot. 6881 */ 6882 static int 6883 zfs_do_bookmark(int argc, char **argv) 6884 { 6885 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 6886 zfs_handle_t *zhp; 6887 nvlist_t *nvl; 6888 int ret = 0; 6889 int c; 6890 6891 /* check options */ 6892 while ((c = getopt(argc, argv, "")) != -1) { 6893 switch (c) { 6894 case '?': 6895 (void) fprintf(stderr, 6896 gettext("invalid option '%c'\n"), optopt); 6897 goto usage; 6898 } 6899 } 6900 6901 argc -= optind; 6902 argv += optind; 6903 6904 /* check number of arguments */ 6905 if (argc < 1) { 6906 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6907 goto usage; 6908 } 6909 if (argc < 2) { 6910 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6911 goto usage; 6912 } 6913 6914 if (strchr(argv[1], '#') == NULL) { 6915 (void) fprintf(stderr, 6916 gettext("invalid bookmark name '%s' -- " 6917 "must contain a '#'\n"), argv[1]); 6918 goto usage; 6919 } 6920 6921 if (argv[0][0] == '@') { 6922 /* 6923 * Snapshot name begins with @. 6924 * Default to same fs as bookmark. 6925 */ 6926 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6927 *strchr(snapname, '#') = '\0'; 6928 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6929 } else { 6930 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6931 } 6932 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6933 if (zhp == NULL) 6934 goto usage; 6935 zfs_close(zhp); 6936 6937 6938 nvl = fnvlist_alloc(); 6939 fnvlist_add_string(nvl, argv[1], snapname); 6940 ret = lzc_bookmark(nvl, NULL); 6941 fnvlist_free(nvl); 6942 6943 if (ret != 0) { 6944 const char *err_msg; 6945 char errbuf[1024]; 6946 6947 (void) snprintf(errbuf, sizeof (errbuf), 6948 dgettext(TEXT_DOMAIN, 6949 "cannot create bookmark '%s'"), argv[1]); 6950 6951 switch (ret) { 6952 case EXDEV: 6953 err_msg = "bookmark is in a different pool"; 6954 break; 6955 case EEXIST: 6956 err_msg = "bookmark exists"; 6957 break; 6958 case EINVAL: 6959 err_msg = "invalid argument"; 6960 break; 6961 case ENOTSUP: 6962 err_msg = "bookmark feature not enabled"; 6963 break; 6964 case ENOSPC: 6965 err_msg = "out of space"; 6966 break; 6967 default: 6968 err_msg = "unknown error"; 6969 break; 6970 } 6971 (void) fprintf(stderr, "%s: %s\n", errbuf, 6972 dgettext(TEXT_DOMAIN, err_msg)); 6973 } 6974 6975 return (ret != 0); 6976 6977 usage: 6978 usage(B_FALSE); 6979 return (-1); 6980 } 6981 6982 int 6983 main(int argc, char **argv) 6984 { 6985 int ret = 0; 6986 int i; 6987 char *progname; 6988 char *cmdname; 6989 6990 (void) setlocale(LC_ALL, ""); 6991 (void) textdomain(TEXT_DOMAIN); 6992 6993 opterr = 0; 6994 6995 if ((g_zfs = libzfs_init()) == NULL) { 6996 (void) fprintf(stderr, gettext("internal error: failed to " 6997 "initialize ZFS library\n")); 6998 return (1); 6999 } 7000 7001 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7002 7003 libzfs_print_on_error(g_zfs, B_TRUE); 7004 7005 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7006 (void) fprintf(stderr, gettext("internal error: unable to " 7007 "open %s\n"), MNTTAB); 7008 return (1); 7009 } 7010 7011 /* 7012 * This command also doubles as the /etc/fs mount and unmount program. 7013 * Determine if we should take this behavior based on argv[0]. 7014 */ 7015 progname = basename(argv[0]); 7016 if (strcmp(progname, "mount") == 0) { 7017 ret = manual_mount(argc, argv); 7018 } else if (strcmp(progname, "umount") == 0) { 7019 ret = manual_unmount(argc, argv); 7020 } else { 7021 /* 7022 * Make sure the user has specified some command. 7023 */ 7024 if (argc < 2) { 7025 (void) fprintf(stderr, gettext("missing command\n")); 7026 usage(B_FALSE); 7027 } 7028 7029 cmdname = argv[1]; 7030 7031 /* 7032 * The 'umount' command is an alias for 'unmount' 7033 */ 7034 if (strcmp(cmdname, "umount") == 0) 7035 cmdname = "unmount"; 7036 7037 /* 7038 * The 'recv' command is an alias for 'receive' 7039 */ 7040 if (strcmp(cmdname, "recv") == 0) 7041 cmdname = "receive"; 7042 7043 /* 7044 * The 'snap' command is an alias for 'snapshot' 7045 */ 7046 if (strcmp(cmdname, "snap") == 0) 7047 cmdname = "snapshot"; 7048 7049 /* 7050 * Special case '-?' 7051 */ 7052 if (strcmp(cmdname, "-?") == 0) 7053 usage(B_TRUE); 7054 7055 /* 7056 * Run the appropriate command. 7057 */ 7058 libzfs_mnttab_cache(g_zfs, B_TRUE); 7059 if (find_command_idx(cmdname, &i) == 0) { 7060 current_command = &command_table[i]; 7061 ret = command_table[i].func(argc - 1, argv + 1); 7062 } else if (strchr(cmdname, '=') != NULL) { 7063 verify(find_command_idx("set", &i) == 0); 7064 current_command = &command_table[i]; 7065 ret = command_table[i].func(argc, argv); 7066 } else { 7067 (void) fprintf(stderr, gettext("unrecognized " 7068 "command '%s'\n"), cmdname); 7069 usage(B_FALSE); 7070 } 7071 libzfs_mnttab_cache(g_zfs, B_FALSE); 7072 } 7073 7074 (void) fclose(mnttab_file); 7075 7076 if (ret == 0 && log_history) 7077 (void) zpool_log_history(g_zfs, history_str); 7078 7079 libzfs_fini(g_zfs); 7080 7081 /* 7082 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7083 * for the purposes of running ::findleaks. 7084 */ 7085 if (getenv("ZFS_ABORT") != NULL) { 7086 (void) printf("dumping core by request\n"); 7087 abort(); 7088 } 7089 7090 return (ret); 7091 } 7092