zfs_main.c revision 277552
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, 2014 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 <pawel@dawidek.net>. 28 * All rights reserved. 29 * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 30 * Copyright (c) 2013 Steven Hartland. All rights reserved. 31 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 32 */ 33 34#include <assert.h> 35#include <ctype.h> 36#include <errno.h> 37#include <libgen.h> 38#include <libintl.h> 39#include <libuutil.h> 40#include <libnvpair.h> 41#include <locale.h> 42#include <stddef.h> 43#include <stdio.h> 44#include <stdlib.h> 45#include <strings.h> 46#include <unistd.h> 47#include <fcntl.h> 48#include <zone.h> 49#include <grp.h> 50#include <pwd.h> 51#include <signal.h> 52#include <sys/list.h> 53#include <sys/mntent.h> 54#include <sys/mnttab.h> 55#include <sys/mount.h> 56#include <sys/stat.h> 57#include <sys/fs/zfs.h> 58#include <sys/types.h> 59#include <time.h> 60#include <err.h> 61#include <jail.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#ifdef sun 69#include <aclutils.h> 70#include <directory.h> 71#include <idmap.h> 72#endif 73 74#include "zfs_iter.h" 75#include "zfs_util.h" 76#include "zfs_comutil.h" 77 78libzfs_handle_t *g_zfs; 79 80static FILE *mnttab_file; 81static char history_str[HIS_MAX_RECORD_LEN]; 82static boolean_t log_history = B_TRUE; 83 84static int zfs_do_clone(int argc, char **argv); 85static int zfs_do_create(int argc, char **argv); 86static int zfs_do_destroy(int argc, char **argv); 87static int zfs_do_get(int argc, char **argv); 88static int zfs_do_inherit(int argc, char **argv); 89static int zfs_do_list(int argc, char **argv); 90static int zfs_do_mount(int argc, char **argv); 91static int zfs_do_rename(int argc, char **argv); 92static int zfs_do_rollback(int argc, char **argv); 93static int zfs_do_set(int argc, char **argv); 94static int zfs_do_upgrade(int argc, char **argv); 95static int zfs_do_snapshot(int argc, char **argv); 96static int zfs_do_unmount(int argc, char **argv); 97static int zfs_do_share(int argc, char **argv); 98static int zfs_do_unshare(int argc, char **argv); 99static int zfs_do_send(int argc, char **argv); 100static int zfs_do_receive(int argc, char **argv); 101static int zfs_do_promote(int argc, char **argv); 102static int zfs_do_userspace(int argc, char **argv); 103static int zfs_do_allow(int argc, char **argv); 104static int zfs_do_unallow(int argc, char **argv); 105static int zfs_do_hold(int argc, char **argv); 106static int zfs_do_holds(int argc, char **argv); 107static int zfs_do_release(int argc, char **argv); 108static int zfs_do_diff(int argc, char **argv); 109static int zfs_do_jail(int argc, char **argv); 110static int zfs_do_unjail(int argc, char **argv); 111static int zfs_do_bookmark(int argc, char **argv); 112 113/* 114 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 115 */ 116 117#ifdef DEBUG 118const char * 119_umem_debug_init(void) 120{ 121 return ("default,verbose"); /* $UMEM_DEBUG setting */ 122} 123 124const char * 125_umem_logging_init(void) 126{ 127 return ("fail,contents"); /* $UMEM_LOGGING setting */ 128} 129#endif 130 131typedef enum { 132 HELP_CLONE, 133 HELP_CREATE, 134 HELP_DESTROY, 135 HELP_GET, 136 HELP_INHERIT, 137 HELP_UPGRADE, 138 HELP_JAIL, 139 HELP_UNJAIL, 140 HELP_LIST, 141 HELP_MOUNT, 142 HELP_PROMOTE, 143 HELP_RECEIVE, 144 HELP_RENAME, 145 HELP_ROLLBACK, 146 HELP_SEND, 147 HELP_SET, 148 HELP_SHARE, 149 HELP_SNAPSHOT, 150 HELP_UNMOUNT, 151 HELP_UNSHARE, 152 HELP_ALLOW, 153 HELP_UNALLOW, 154 HELP_USERSPACE, 155 HELP_GROUPSPACE, 156 HELP_HOLD, 157 HELP_HOLDS, 158 HELP_RELEASE, 159 HELP_DIFF, 160 HELP_BOOKMARK, 161} zfs_help_t; 162 163typedef struct zfs_command { 164 const char *name; 165 int (*func)(int argc, char **argv); 166 zfs_help_t usage; 167} zfs_command_t; 168 169/* 170 * Master command table. Each ZFS command has a name, associated function, and 171 * usage message. The usage messages need to be internationalized, so we have 172 * to have a function to return the usage message based on a command index. 173 * 174 * These commands are organized according to how they are displayed in the usage 175 * message. An empty command (one with a NULL name) indicates an empty line in 176 * the generic usage message. 177 */ 178static zfs_command_t command_table[] = { 179 { "create", zfs_do_create, HELP_CREATE }, 180 { "destroy", zfs_do_destroy, HELP_DESTROY }, 181 { NULL }, 182 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 183 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 184 { "clone", zfs_do_clone, HELP_CLONE }, 185 { "promote", zfs_do_promote, HELP_PROMOTE }, 186 { "rename", zfs_do_rename, HELP_RENAME }, 187 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 188 { NULL }, 189 { "list", zfs_do_list, HELP_LIST }, 190 { NULL }, 191 { "set", zfs_do_set, HELP_SET }, 192 { "get", zfs_do_get, HELP_GET }, 193 { "inherit", zfs_do_inherit, HELP_INHERIT }, 194 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 195 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 196 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 197 { NULL }, 198 { "mount", zfs_do_mount, HELP_MOUNT }, 199 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 200 { "share", zfs_do_share, HELP_SHARE }, 201 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 202 { NULL }, 203 { "send", zfs_do_send, HELP_SEND }, 204 { "receive", zfs_do_receive, HELP_RECEIVE }, 205 { NULL }, 206 { "allow", zfs_do_allow, HELP_ALLOW }, 207 { NULL }, 208 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 209 { NULL }, 210 { "hold", zfs_do_hold, HELP_HOLD }, 211 { "holds", zfs_do_holds, HELP_HOLDS }, 212 { "release", zfs_do_release, HELP_RELEASE }, 213 { "diff", zfs_do_diff, HELP_DIFF }, 214 { NULL }, 215 { "jail", zfs_do_jail, HELP_JAIL }, 216 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 217}; 218 219#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 220 221zfs_command_t *current_command; 222 223static const char * 224get_usage(zfs_help_t idx) 225{ 226 switch (idx) { 227 case HELP_CLONE: 228 return (gettext("\tclone [-p] [-o property=value] ... " 229 "<snapshot> <filesystem|volume>\n")); 230 case HELP_CREATE: 231 return (gettext("\tcreate [-pu] [-o property=value] ... " 232 "<filesystem>\n" 233 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 234 "-V <size> <volume>\n")); 235 case HELP_DESTROY: 236 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 237 "\tdestroy [-dnpRrv] " 238 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 239 "\tdestroy <filesystem|volume>#<bookmark>\n")); 240 case HELP_GET: 241 return (gettext("\tget [-rHp] [-d max] " 242 "[-o \"all\" | field[,...]]\n" 243 "\t [-t type[,...]] [-s source[,...]]\n" 244 "\t <\"all\" | property[,...]> " 245 "[filesystem|volume|snapshot] ...\n")); 246 case HELP_INHERIT: 247 return (gettext("\tinherit [-rS] <property> " 248 "<filesystem|volume|snapshot> ...\n")); 249 case HELP_UPGRADE: 250 return (gettext("\tupgrade [-v]\n" 251 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 252 case HELP_JAIL: 253 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 254 case HELP_UNJAIL: 255 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 256 case HELP_LIST: 257 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 258 "[-s property]...\n\t [-S property]... [-t type[,...]] " 259 "[filesystem|volume|snapshot] ...\n")); 260 case HELP_MOUNT: 261 return (gettext("\tmount\n" 262 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 263 case HELP_PROMOTE: 264 return (gettext("\tpromote <clone-filesystem>\n")); 265 case HELP_RECEIVE: 266 return (gettext("\treceive|recv [-vnFu] <filesystem|volume|" 267 "snapshot>\n" 268 "\treceive|recv [-vnFu] [-d | -e] <filesystem>\n")); 269 case HELP_RENAME: 270 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 271 "<filesystem|volume|snapshot>\n" 272 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 273 "\trename -r <snapshot> <snapshot>\n" 274 "\trename -u [-p] <filesystem> <filesystem>")); 275 case HELP_ROLLBACK: 276 return (gettext("\trollback [-rRf] <snapshot>\n")); 277 case HELP_SEND: 278 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 279 "<snapshot>\n" 280 "\tsend [-Le] [-i snapshot|bookmark] " 281 "<filesystem|volume|snapshot>\n")); 282 case HELP_SET: 283 return (gettext("\tset <property=value> " 284 "<filesystem|volume|snapshot> ...\n")); 285 case HELP_SHARE: 286 return (gettext("\tshare <-a | filesystem>\n")); 287 case HELP_SNAPSHOT: 288 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... " 289 "<filesystem|volume>@<snap> ...\n")); 290 case HELP_UNMOUNT: 291 return (gettext("\tunmount|umount [-f] " 292 "<-a | filesystem|mountpoint>\n")); 293 case HELP_UNSHARE: 294 return (gettext("\tunshare " 295 "<-a | filesystem|mountpoint>\n")); 296 case HELP_ALLOW: 297 return (gettext("\tallow <filesystem|volume>\n" 298 "\tallow [-ldug] " 299 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 300 "\t <filesystem|volume>\n" 301 "\tallow [-ld] -e <perm|@setname>[,...] " 302 "<filesystem|volume>\n" 303 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 304 "\tallow -s @setname <perm|@setname>[,...] " 305 "<filesystem|volume>\n")); 306 case HELP_UNALLOW: 307 return (gettext("\tunallow [-rldug] " 308 "<\"everyone\"|user|group>[,...]\n" 309 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 310 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 311 "<filesystem|volume>\n" 312 "\tunallow [-r] -c [<perm|@setname>[,...]] " 313 "<filesystem|volume>\n" 314 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 315 "<filesystem|volume>\n")); 316 case HELP_USERSPACE: 317 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 318 "[-s field] ...\n" 319 "\t [-S field] ... [-t type[,...]] " 320 "<filesystem|snapshot>\n")); 321 case HELP_GROUPSPACE: 322 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 323 "[-s field] ...\n" 324 "\t [-S field] ... [-t type[,...]] " 325 "<filesystem|snapshot>\n")); 326 case HELP_HOLD: 327 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 328 case HELP_HOLDS: 329 return (gettext("\tholds [-r] <snapshot> ...\n")); 330 case HELP_RELEASE: 331 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 332 case HELP_DIFF: 333 return (gettext("\tdiff [-FHt] <snapshot> " 334 "[snapshot|filesystem]\n")); 335 case HELP_BOOKMARK: 336 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 337 } 338 339 abort(); 340 /* NOTREACHED */ 341} 342 343void 344nomem(void) 345{ 346 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 347 exit(1); 348} 349 350/* 351 * Utility function to guarantee malloc() success. 352 */ 353 354void * 355safe_malloc(size_t size) 356{ 357 void *data; 358 359 if ((data = calloc(1, size)) == NULL) 360 nomem(); 361 362 return (data); 363} 364 365static char * 366safe_strdup(char *str) 367{ 368 char *dupstr = strdup(str); 369 370 if (dupstr == NULL) 371 nomem(); 372 373 return (dupstr); 374} 375 376/* 377 * Callback routine that will print out information for each of 378 * the properties. 379 */ 380static int 381usage_prop_cb(int prop, void *cb) 382{ 383 FILE *fp = cb; 384 385 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 386 387 if (zfs_prop_readonly(prop)) 388 (void) fprintf(fp, " NO "); 389 else 390 (void) fprintf(fp, "YES "); 391 392 if (zfs_prop_inheritable(prop)) 393 (void) fprintf(fp, " YES "); 394 else 395 (void) fprintf(fp, " NO "); 396 397 if (zfs_prop_values(prop) == NULL) 398 (void) fprintf(fp, "-\n"); 399 else 400 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 401 402 return (ZPROP_CONT); 403} 404 405/* 406 * Display usage message. If we're inside a command, display only the usage for 407 * that command. Otherwise, iterate over the entire command table and display 408 * a complete usage message. 409 */ 410static void 411usage(boolean_t requested) 412{ 413 int i; 414 boolean_t show_properties = B_FALSE; 415 FILE *fp = requested ? stdout : stderr; 416 417 if (current_command == NULL) { 418 419 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 420 (void) fprintf(fp, 421 gettext("where 'command' is one of the following:\n\n")); 422 423 for (i = 0; i < NCOMMAND; i++) { 424 if (command_table[i].name == NULL) 425 (void) fprintf(fp, "\n"); 426 else 427 (void) fprintf(fp, "%s", 428 get_usage(command_table[i].usage)); 429 } 430 431 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 432 "pool/[dataset/]*dataset[@name]\n")); 433 } else { 434 (void) fprintf(fp, gettext("usage:\n")); 435 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 436 } 437 438 if (current_command != NULL && 439 (strcmp(current_command->name, "set") == 0 || 440 strcmp(current_command->name, "get") == 0 || 441 strcmp(current_command->name, "inherit") == 0 || 442 strcmp(current_command->name, "list") == 0)) 443 show_properties = B_TRUE; 444 445 if (show_properties) { 446 (void) fprintf(fp, 447 gettext("\nThe following properties are supported:\n")); 448 449 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 450 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 451 452 /* Iterate over all properties */ 453 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 454 ZFS_TYPE_DATASET); 455 456 (void) fprintf(fp, "\t%-15s ", "userused@..."); 457 (void) fprintf(fp, " NO NO <size>\n"); 458 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 459 (void) fprintf(fp, " NO NO <size>\n"); 460 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 461 (void) fprintf(fp, "YES NO <size> | none\n"); 462 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 463 (void) fprintf(fp, "YES NO <size> | none\n"); 464 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 465 (void) fprintf(fp, " NO NO <size>\n"); 466 467 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 468 "with standard units such as K, M, G, etc.\n")); 469 (void) fprintf(fp, gettext("\nUser-defined properties can " 470 "be specified by using a name containing a colon (:).\n")); 471 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 472 "properties must be appended with\n" 473 "a user or group specifier of one of these forms:\n" 474 " POSIX name (eg: \"matt\")\n" 475 " POSIX id (eg: \"126829\")\n" 476 " SMB name@domain (eg: \"matt@sun\")\n" 477 " SMB SID (eg: \"S-1-234-567-89\")\n")); 478 } else { 479 (void) fprintf(fp, 480 gettext("\nFor the property list, run: %s\n"), 481 "zfs set|get"); 482 (void) fprintf(fp, 483 gettext("\nFor the delegated permission list, run: %s\n"), 484 "zfs allow|unallow"); 485 } 486 487 /* 488 * See comments at end of main(). 489 */ 490 if (getenv("ZFS_ABORT") != NULL) { 491 (void) printf("dumping core by request\n"); 492 abort(); 493 } 494 495 exit(requested ? 0 : 2); 496} 497 498static int 499parseprop(nvlist_t *props, char *propname) 500{ 501 char *propval, *strval; 502 503 if ((propval = strchr(propname, '=')) == NULL) { 504 (void) fprintf(stderr, gettext("missing " 505 "'=' for -o option\n")); 506 return (-1); 507 } 508 *propval = '\0'; 509 propval++; 510 if (nvlist_lookup_string(props, propname, &strval) == 0) { 511 (void) fprintf(stderr, gettext("property '%s' " 512 "specified multiple times\n"), propname); 513 return (-1); 514 } 515 if (nvlist_add_string(props, propname, propval) != 0) 516 nomem(); 517 return (0); 518} 519 520static int 521parse_depth(char *opt, int *flags) 522{ 523 char *tmp; 524 int depth; 525 526 depth = (int)strtol(opt, &tmp, 0); 527 if (*tmp) { 528 (void) fprintf(stderr, 529 gettext("%s is not an integer\n"), opt); 530 usage(B_FALSE); 531 } 532 if (depth < 0) { 533 (void) fprintf(stderr, 534 gettext("Depth can not be negative.\n")); 535 usage(B_FALSE); 536 } 537 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 538 return (depth); 539} 540 541#define PROGRESS_DELAY 2 /* seconds */ 542 543static 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"; 544static time_t pt_begin; 545static char *pt_header = NULL; 546static boolean_t pt_shown; 547 548static void 549start_progress_timer(void) 550{ 551 pt_begin = time(NULL) + PROGRESS_DELAY; 552 pt_shown = B_FALSE; 553} 554 555static void 556set_progress_header(char *header) 557{ 558 assert(pt_header == NULL); 559 pt_header = safe_strdup(header); 560 if (pt_shown) { 561 (void) printf("%s: ", header); 562 (void) fflush(stdout); 563 } 564} 565 566static void 567update_progress(char *update) 568{ 569 if (!pt_shown && time(NULL) > pt_begin) { 570 int len = strlen(update); 571 572 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 573 pt_reverse); 574 (void) fflush(stdout); 575 pt_shown = B_TRUE; 576 } else if (pt_shown) { 577 int len = strlen(update); 578 579 (void) printf("%s%*.*s", update, len, len, pt_reverse); 580 (void) fflush(stdout); 581 } 582} 583 584static void 585finish_progress(char *done) 586{ 587 if (pt_shown) { 588 (void) printf("%s\n", done); 589 (void) fflush(stdout); 590 } 591 free(pt_header); 592 pt_header = NULL; 593} 594 595/* 596 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 597 * 598 * Given an existing dataset, create a writable copy whose initial contents 599 * are the same as the source. The newly created dataset maintains a 600 * dependency on the original; the original cannot be destroyed so long as 601 * the clone exists. 602 * 603 * The '-p' flag creates all the non-existing ancestors of the target first. 604 */ 605static int 606zfs_do_clone(int argc, char **argv) 607{ 608 zfs_handle_t *zhp = NULL; 609 boolean_t parents = B_FALSE; 610 nvlist_t *props; 611 int ret = 0; 612 int c; 613 614 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 615 nomem(); 616 617 /* check options */ 618 while ((c = getopt(argc, argv, "o:p")) != -1) { 619 switch (c) { 620 case 'o': 621 if (parseprop(props, optarg)) 622 return (1); 623 break; 624 case 'p': 625 parents = B_TRUE; 626 break; 627 case '?': 628 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 629 optopt); 630 goto usage; 631 } 632 } 633 634 argc -= optind; 635 argv += optind; 636 637 /* check number of arguments */ 638 if (argc < 1) { 639 (void) fprintf(stderr, gettext("missing source dataset " 640 "argument\n")); 641 goto usage; 642 } 643 if (argc < 2) { 644 (void) fprintf(stderr, gettext("missing target dataset " 645 "argument\n")); 646 goto usage; 647 } 648 if (argc > 2) { 649 (void) fprintf(stderr, gettext("too many arguments\n")); 650 goto usage; 651 } 652 653 /* open the source dataset */ 654 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 655 return (1); 656 657 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 658 ZFS_TYPE_VOLUME)) { 659 /* 660 * Now create the ancestors of the target dataset. If the 661 * target already exists and '-p' option was used we should not 662 * complain. 663 */ 664 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 665 ZFS_TYPE_VOLUME)) 666 return (0); 667 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 668 return (1); 669 } 670 671 /* pass to libzfs */ 672 ret = zfs_clone(zhp, argv[1], props); 673 674 /* create the mountpoint if necessary */ 675 if (ret == 0) { 676 zfs_handle_t *clone; 677 678 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 679 if (clone != NULL) { 680 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 681 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 682 ret = zfs_share(clone); 683 zfs_close(clone); 684 } 685 } 686 687 zfs_close(zhp); 688 nvlist_free(props); 689 690 return (!!ret); 691 692usage: 693 if (zhp) 694 zfs_close(zhp); 695 nvlist_free(props); 696 usage(B_FALSE); 697 return (-1); 698} 699 700/* 701 * zfs create [-pu] [-o prop=value] ... fs 702 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 703 * 704 * Create a new dataset. This command can be used to create filesystems 705 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 706 * For volumes, the user must specify a size to be used. 707 * 708 * The '-s' flag applies only to volumes, and indicates that we should not try 709 * to set the reservation for this volume. By default we set a reservation 710 * equal to the size for any volume. For pools with SPA_VERSION >= 711 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 712 * 713 * The '-p' flag creates all the non-existing ancestors of the target first. 714 * 715 * The '-u' flag prevents mounting of newly created file system. 716 */ 717static int 718zfs_do_create(int argc, char **argv) 719{ 720 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 721 zfs_handle_t *zhp = NULL; 722 uint64_t volsize; 723 int c; 724 boolean_t noreserve = B_FALSE; 725 boolean_t bflag = B_FALSE; 726 boolean_t parents = B_FALSE; 727 boolean_t nomount = B_FALSE; 728 int ret = 1; 729 nvlist_t *props; 730 uint64_t intval; 731 int canmount = ZFS_CANMOUNT_OFF; 732 733 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 734 nomem(); 735 736 /* check options */ 737 while ((c = getopt(argc, argv, ":V:b:so:pu")) != -1) { 738 switch (c) { 739 case 'V': 740 type = ZFS_TYPE_VOLUME; 741 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 742 (void) fprintf(stderr, gettext("bad volume " 743 "size '%s': %s\n"), optarg, 744 libzfs_error_description(g_zfs)); 745 goto error; 746 } 747 748 if (nvlist_add_uint64(props, 749 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 750 nomem(); 751 volsize = intval; 752 break; 753 case 'p': 754 parents = B_TRUE; 755 break; 756 case 'b': 757 bflag = B_TRUE; 758 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 759 (void) fprintf(stderr, gettext("bad volume " 760 "block size '%s': %s\n"), optarg, 761 libzfs_error_description(g_zfs)); 762 goto error; 763 } 764 765 if (nvlist_add_uint64(props, 766 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 767 intval) != 0) 768 nomem(); 769 break; 770 case 'o': 771 if (parseprop(props, optarg)) 772 goto error; 773 break; 774 case 's': 775 noreserve = B_TRUE; 776 break; 777 case 'u': 778 nomount = B_TRUE; 779 break; 780 case ':': 781 (void) fprintf(stderr, gettext("missing size " 782 "argument\n")); 783 goto badusage; 784 case '?': 785 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 786 optopt); 787 goto badusage; 788 } 789 } 790 791 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 792 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 793 "used when creating a volume\n")); 794 goto badusage; 795 } 796 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 797 (void) fprintf(stderr, gettext("'-u' can only be " 798 "used when creating a file system\n")); 799 goto badusage; 800 } 801 802 argc -= optind; 803 argv += optind; 804 805 /* check number of arguments */ 806 if (argc == 0) { 807 (void) fprintf(stderr, gettext("missing %s argument\n"), 808 zfs_type_to_name(type)); 809 goto badusage; 810 } 811 if (argc > 1) { 812 (void) fprintf(stderr, gettext("too many arguments\n")); 813 goto badusage; 814 } 815 816 if (type == ZFS_TYPE_VOLUME && !noreserve) { 817 zpool_handle_t *zpool_handle; 818 uint64_t spa_version; 819 char *p; 820 zfs_prop_t resv_prop; 821 char *strval; 822 823 if (p = strchr(argv[0], '/')) 824 *p = '\0'; 825 zpool_handle = zpool_open(g_zfs, argv[0]); 826 if (p != NULL) 827 *p = '/'; 828 if (zpool_handle == NULL) 829 goto error; 830 spa_version = zpool_get_prop_int(zpool_handle, 831 ZPOOL_PROP_VERSION, NULL); 832 zpool_close(zpool_handle); 833 if (spa_version >= SPA_VERSION_REFRESERVATION) 834 resv_prop = ZFS_PROP_REFRESERVATION; 835 else 836 resv_prop = ZFS_PROP_RESERVATION; 837 volsize = zvol_volsize_to_reservation(volsize, props); 838 839 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 840 &strval) != 0) { 841 if (nvlist_add_uint64(props, 842 zfs_prop_to_name(resv_prop), volsize) != 0) { 843 nvlist_free(props); 844 nomem(); 845 } 846 } 847 } 848 849 if (parents && zfs_name_valid(argv[0], type)) { 850 /* 851 * Now create the ancestors of target dataset. If the target 852 * already exists and '-p' option was used we should not 853 * complain. 854 */ 855 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 856 ret = 0; 857 goto error; 858 } 859 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 860 goto error; 861 } 862 863 /* pass to libzfs */ 864 if (zfs_create(g_zfs, argv[0], type, props) != 0) 865 goto error; 866 867 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 868 goto error; 869 870 ret = 0; 871 /* 872 * if the user doesn't want the dataset automatically mounted, 873 * then skip the mount/share step 874 */ 875 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 876 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 877 878 /* 879 * Mount and/or share the new filesystem as appropriate. We provide a 880 * verbose error message to let the user know that their filesystem was 881 * in fact created, even if we failed to mount or share it. 882 */ 883 if (!nomount && canmount == ZFS_CANMOUNT_ON) { 884 if (zfs_mount(zhp, NULL, 0) != 0) { 885 (void) fprintf(stderr, gettext("filesystem " 886 "successfully created, but not mounted\n")); 887 ret = 1; 888 } else if (zfs_share(zhp) != 0) { 889 (void) fprintf(stderr, gettext("filesystem " 890 "successfully created, but not shared\n")); 891 ret = 1; 892 } 893 } 894 895error: 896 if (zhp) 897 zfs_close(zhp); 898 nvlist_free(props); 899 return (ret); 900badusage: 901 nvlist_free(props); 902 usage(B_FALSE); 903 return (2); 904} 905 906/* 907 * zfs destroy [-rRf] <fs, vol> 908 * zfs destroy [-rRd] <snap> 909 * 910 * -r Recursively destroy all children 911 * -R Recursively destroy all dependents, including clones 912 * -f Force unmounting of any dependents 913 * -d If we can't destroy now, mark for deferred destruction 914 * 915 * Destroys the given dataset. By default, it will unmount any filesystems, 916 * and refuse to destroy a dataset that has any dependents. A dependent can 917 * either be a child, or a clone of a child. 918 */ 919typedef struct destroy_cbdata { 920 boolean_t cb_first; 921 boolean_t cb_force; 922 boolean_t cb_recurse; 923 boolean_t cb_error; 924 boolean_t cb_doclones; 925 zfs_handle_t *cb_target; 926 boolean_t cb_defer_destroy; 927 boolean_t cb_verbose; 928 boolean_t cb_parsable; 929 boolean_t cb_dryrun; 930 nvlist_t *cb_nvl; 931 nvlist_t *cb_batchedsnaps; 932 933 /* first snap in contiguous run */ 934 char *cb_firstsnap; 935 /* previous snap in contiguous run */ 936 char *cb_prevsnap; 937 int64_t cb_snapused; 938 char *cb_snapspec; 939 char *cb_bookmark; 940} destroy_cbdata_t; 941 942/* 943 * Check for any dependents based on the '-r' or '-R' flags. 944 */ 945static int 946destroy_check_dependent(zfs_handle_t *zhp, void *data) 947{ 948 destroy_cbdata_t *cbp = data; 949 const char *tname = zfs_get_name(cbp->cb_target); 950 const char *name = zfs_get_name(zhp); 951 952 if (strncmp(tname, name, strlen(tname)) == 0 && 953 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 954 /* 955 * This is a direct descendant, not a clone somewhere else in 956 * the hierarchy. 957 */ 958 if (cbp->cb_recurse) 959 goto out; 960 961 if (cbp->cb_first) { 962 (void) fprintf(stderr, gettext("cannot destroy '%s': " 963 "%s has children\n"), 964 zfs_get_name(cbp->cb_target), 965 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 966 (void) fprintf(stderr, gettext("use '-r' to destroy " 967 "the following datasets:\n")); 968 cbp->cb_first = B_FALSE; 969 cbp->cb_error = B_TRUE; 970 } 971 972 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 973 } else { 974 /* 975 * This is a clone. We only want to report this if the '-r' 976 * wasn't specified, or the target is a snapshot. 977 */ 978 if (!cbp->cb_recurse && 979 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 980 goto out; 981 982 if (cbp->cb_first) { 983 (void) fprintf(stderr, gettext("cannot destroy '%s': " 984 "%s has dependent clones\n"), 985 zfs_get_name(cbp->cb_target), 986 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 987 (void) fprintf(stderr, gettext("use '-R' to destroy " 988 "the following datasets:\n")); 989 cbp->cb_first = B_FALSE; 990 cbp->cb_error = B_TRUE; 991 cbp->cb_dryrun = B_TRUE; 992 } 993 994 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 995 } 996 997out: 998 zfs_close(zhp); 999 return (0); 1000} 1001 1002static int 1003destroy_callback(zfs_handle_t *zhp, void *data) 1004{ 1005 destroy_cbdata_t *cb = data; 1006 const char *name = zfs_get_name(zhp); 1007 1008 if (cb->cb_verbose) { 1009 if (cb->cb_parsable) { 1010 (void) printf("destroy\t%s\n", name); 1011 } else if (cb->cb_dryrun) { 1012 (void) printf(gettext("would destroy %s\n"), 1013 name); 1014 } else { 1015 (void) printf(gettext("will destroy %s\n"), 1016 name); 1017 } 1018 } 1019 1020 /* 1021 * Ignore pools (which we've already flagged as an error before getting 1022 * here). 1023 */ 1024 if (strchr(zfs_get_name(zhp), '/') == NULL && 1025 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1026 zfs_close(zhp); 1027 return (0); 1028 } 1029 if (cb->cb_dryrun) { 1030 zfs_close(zhp); 1031 return (0); 1032 } 1033 1034 /* 1035 * We batch up all contiguous snapshots (even of different 1036 * filesystems) and destroy them with one ioctl. We can't 1037 * simply do all snap deletions and then all fs deletions, 1038 * because we must delete a clone before its origin. 1039 */ 1040 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1041 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1042 } else { 1043 int error = zfs_destroy_snaps_nvl(g_zfs, 1044 cb->cb_batchedsnaps, B_FALSE); 1045 fnvlist_free(cb->cb_batchedsnaps); 1046 cb->cb_batchedsnaps = fnvlist_alloc(); 1047 1048 if (error != 0 || 1049 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1050 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1051 zfs_close(zhp); 1052 return (-1); 1053 } 1054 } 1055 1056 zfs_close(zhp); 1057 return (0); 1058} 1059 1060static int 1061destroy_print_cb(zfs_handle_t *zhp, void *arg) 1062{ 1063 destroy_cbdata_t *cb = arg; 1064 const char *name = zfs_get_name(zhp); 1065 int err = 0; 1066 1067 if (nvlist_exists(cb->cb_nvl, name)) { 1068 if (cb->cb_firstsnap == NULL) 1069 cb->cb_firstsnap = strdup(name); 1070 if (cb->cb_prevsnap != NULL) 1071 free(cb->cb_prevsnap); 1072 /* this snap continues the current range */ 1073 cb->cb_prevsnap = strdup(name); 1074 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1075 nomem(); 1076 if (cb->cb_verbose) { 1077 if (cb->cb_parsable) { 1078 (void) printf("destroy\t%s\n", name); 1079 } else if (cb->cb_dryrun) { 1080 (void) printf(gettext("would destroy %s\n"), 1081 name); 1082 } else { 1083 (void) printf(gettext("will destroy %s\n"), 1084 name); 1085 } 1086 } 1087 } else if (cb->cb_firstsnap != NULL) { 1088 /* end of this range */ 1089 uint64_t used = 0; 1090 err = lzc_snaprange_space(cb->cb_firstsnap, 1091 cb->cb_prevsnap, &used); 1092 cb->cb_snapused += used; 1093 free(cb->cb_firstsnap); 1094 cb->cb_firstsnap = NULL; 1095 free(cb->cb_prevsnap); 1096 cb->cb_prevsnap = NULL; 1097 } 1098 zfs_close(zhp); 1099 return (err); 1100} 1101 1102static int 1103destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1104{ 1105 int err = 0; 1106 assert(cb->cb_firstsnap == NULL); 1107 assert(cb->cb_prevsnap == NULL); 1108 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1109 if (cb->cb_firstsnap != NULL) { 1110 uint64_t used = 0; 1111 if (err == 0) { 1112 err = lzc_snaprange_space(cb->cb_firstsnap, 1113 cb->cb_prevsnap, &used); 1114 } 1115 cb->cb_snapused += used; 1116 free(cb->cb_firstsnap); 1117 cb->cb_firstsnap = NULL; 1118 free(cb->cb_prevsnap); 1119 cb->cb_prevsnap = NULL; 1120 } 1121 return (err); 1122} 1123 1124static int 1125snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1126{ 1127 destroy_cbdata_t *cb = arg; 1128 int err = 0; 1129 1130 /* Check for clones. */ 1131 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1132 cb->cb_target = zhp; 1133 cb->cb_first = B_TRUE; 1134 err = zfs_iter_dependents(zhp, B_TRUE, 1135 destroy_check_dependent, cb); 1136 } 1137 1138 if (err == 0) { 1139 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1140 nomem(); 1141 } 1142 zfs_close(zhp); 1143 return (err); 1144} 1145 1146static int 1147gather_snapshots(zfs_handle_t *zhp, void *arg) 1148{ 1149 destroy_cbdata_t *cb = arg; 1150 int err = 0; 1151 1152 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1153 if (err == ENOENT) 1154 err = 0; 1155 if (err != 0) 1156 goto out; 1157 1158 if (cb->cb_verbose) { 1159 err = destroy_print_snapshots(zhp, cb); 1160 if (err != 0) 1161 goto out; 1162 } 1163 1164 if (cb->cb_recurse) 1165 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1166 1167out: 1168 zfs_close(zhp); 1169 return (err); 1170} 1171 1172static int 1173destroy_clones(destroy_cbdata_t *cb) 1174{ 1175 nvpair_t *pair; 1176 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1177 pair != NULL; 1178 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1179 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1180 ZFS_TYPE_SNAPSHOT); 1181 if (zhp != NULL) { 1182 boolean_t defer = cb->cb_defer_destroy; 1183 int err = 0; 1184 1185 /* 1186 * We can't defer destroy non-snapshots, so set it to 1187 * false while destroying the clones. 1188 */ 1189 cb->cb_defer_destroy = B_FALSE; 1190 err = zfs_iter_dependents(zhp, B_FALSE, 1191 destroy_callback, cb); 1192 cb->cb_defer_destroy = defer; 1193 zfs_close(zhp); 1194 if (err != 0) 1195 return (err); 1196 } 1197 } 1198 return (0); 1199} 1200 1201static int 1202zfs_do_destroy(int argc, char **argv) 1203{ 1204 destroy_cbdata_t cb = { 0 }; 1205 int rv = 0; 1206 int err = 0; 1207 int c; 1208 zfs_handle_t *zhp = NULL; 1209 char *at, *pound; 1210 zfs_type_t type = ZFS_TYPE_DATASET; 1211 1212 /* check options */ 1213 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1214 switch (c) { 1215 case 'v': 1216 cb.cb_verbose = B_TRUE; 1217 break; 1218 case 'p': 1219 cb.cb_verbose = B_TRUE; 1220 cb.cb_parsable = B_TRUE; 1221 break; 1222 case 'n': 1223 cb.cb_dryrun = B_TRUE; 1224 break; 1225 case 'd': 1226 cb.cb_defer_destroy = B_TRUE; 1227 type = ZFS_TYPE_SNAPSHOT; 1228 break; 1229 case 'f': 1230 cb.cb_force = B_TRUE; 1231 break; 1232 case 'r': 1233 cb.cb_recurse = B_TRUE; 1234 break; 1235 case 'R': 1236 cb.cb_recurse = B_TRUE; 1237 cb.cb_doclones = B_TRUE; 1238 break; 1239 case '?': 1240 default: 1241 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1242 optopt); 1243 usage(B_FALSE); 1244 } 1245 } 1246 1247 argc -= optind; 1248 argv += optind; 1249 1250 /* check number of arguments */ 1251 if (argc == 0) { 1252 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1253 usage(B_FALSE); 1254 } 1255 if (argc > 1) { 1256 (void) fprintf(stderr, gettext("too many arguments\n")); 1257 usage(B_FALSE); 1258 } 1259 1260 at = strchr(argv[0], '@'); 1261 pound = strchr(argv[0], '#'); 1262 if (at != NULL) { 1263 1264 /* Build the list of snaps to destroy in cb_nvl. */ 1265 cb.cb_nvl = fnvlist_alloc(); 1266 1267 *at = '\0'; 1268 zhp = zfs_open(g_zfs, argv[0], 1269 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1270 if (zhp == NULL) 1271 return (1); 1272 1273 cb.cb_snapspec = at + 1; 1274 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1275 cb.cb_error) { 1276 rv = 1; 1277 goto out; 1278 } 1279 1280 if (nvlist_empty(cb.cb_nvl)) { 1281 (void) fprintf(stderr, gettext("could not find any " 1282 "snapshots to destroy; check snapshot names.\n")); 1283 rv = 1; 1284 goto out; 1285 } 1286 1287 if (cb.cb_verbose) { 1288 char buf[16]; 1289 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1290 if (cb.cb_parsable) { 1291 (void) printf("reclaim\t%llu\n", 1292 cb.cb_snapused); 1293 } else if (cb.cb_dryrun) { 1294 (void) printf(gettext("would reclaim %s\n"), 1295 buf); 1296 } else { 1297 (void) printf(gettext("will reclaim %s\n"), 1298 buf); 1299 } 1300 } 1301 1302 if (!cb.cb_dryrun) { 1303 if (cb.cb_doclones) { 1304 cb.cb_batchedsnaps = fnvlist_alloc(); 1305 err = destroy_clones(&cb); 1306 if (err == 0) { 1307 err = zfs_destroy_snaps_nvl(g_zfs, 1308 cb.cb_batchedsnaps, B_FALSE); 1309 } 1310 if (err != 0) { 1311 rv = 1; 1312 goto out; 1313 } 1314 } 1315 if (err == 0) { 1316 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1317 cb.cb_defer_destroy); 1318 } 1319 } 1320 1321 if (err != 0) 1322 rv = 1; 1323 } else if (pound != NULL) { 1324 int err; 1325 nvlist_t *nvl; 1326 1327 if (cb.cb_dryrun) { 1328 (void) fprintf(stderr, 1329 "dryrun is not supported with bookmark\n"); 1330 return (-1); 1331 } 1332 1333 if (cb.cb_defer_destroy) { 1334 (void) fprintf(stderr, 1335 "defer destroy is not supported with bookmark\n"); 1336 return (-1); 1337 } 1338 1339 if (cb.cb_recurse) { 1340 (void) fprintf(stderr, 1341 "recursive is not supported with bookmark\n"); 1342 return (-1); 1343 } 1344 1345 if (!zfs_bookmark_exists(argv[0])) { 1346 (void) fprintf(stderr, gettext("bookmark '%s' " 1347 "does not exist.\n"), argv[0]); 1348 return (1); 1349 } 1350 1351 nvl = fnvlist_alloc(); 1352 fnvlist_add_boolean(nvl, argv[0]); 1353 1354 err = lzc_destroy_bookmarks(nvl, NULL); 1355 if (err != 0) { 1356 (void) zfs_standard_error(g_zfs, err, 1357 "cannot destroy bookmark"); 1358 } 1359 1360 nvlist_free(cb.cb_nvl); 1361 1362 return (err); 1363 } else { 1364 /* Open the given dataset */ 1365 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1366 return (1); 1367 1368 cb.cb_target = zhp; 1369 1370 /* 1371 * Perform an explicit check for pools before going any further. 1372 */ 1373 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1374 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1375 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1376 "operation does not apply to pools\n"), 1377 zfs_get_name(zhp)); 1378 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1379 "%s' to destroy all datasets in the pool\n"), 1380 zfs_get_name(zhp)); 1381 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1382 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1383 rv = 1; 1384 goto out; 1385 } 1386 1387 /* 1388 * Check for any dependents and/or clones. 1389 */ 1390 cb.cb_first = B_TRUE; 1391 if (!cb.cb_doclones && 1392 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1393 &cb) != 0) { 1394 rv = 1; 1395 goto out; 1396 } 1397 1398 if (cb.cb_error) { 1399 rv = 1; 1400 goto out; 1401 } 1402 1403 cb.cb_batchedsnaps = fnvlist_alloc(); 1404 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1405 &cb) != 0) { 1406 rv = 1; 1407 goto out; 1408 } 1409 1410 /* 1411 * Do the real thing. The callback will close the 1412 * handle regardless of whether it succeeds or not. 1413 */ 1414 err = destroy_callback(zhp, &cb); 1415 zhp = NULL; 1416 if (err == 0) { 1417 err = zfs_destroy_snaps_nvl(g_zfs, 1418 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1419 } 1420 if (err != 0) 1421 rv = 1; 1422 } 1423 1424out: 1425 fnvlist_free(cb.cb_batchedsnaps); 1426 fnvlist_free(cb.cb_nvl); 1427 if (zhp != NULL) 1428 zfs_close(zhp); 1429 return (rv); 1430} 1431 1432static boolean_t 1433is_recvd_column(zprop_get_cbdata_t *cbp) 1434{ 1435 int i; 1436 zfs_get_column_t col; 1437 1438 for (i = 0; i < ZFS_GET_NCOLS && 1439 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1440 if (col == GET_COL_RECVD) 1441 return (B_TRUE); 1442 return (B_FALSE); 1443} 1444 1445/* 1446 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1447 * < all | property[,property]... > < fs | snap | vol > ... 1448 * 1449 * -r recurse over any child datasets 1450 * -H scripted mode. Headers are stripped, and fields are separated 1451 * by tabs instead of spaces. 1452 * -o Set of fields to display. One of "name,property,value, 1453 * received,source". Default is "name,property,value,source". 1454 * "all" is an alias for all five. 1455 * -s Set of sources to allow. One of 1456 * "local,default,inherited,received,temporary,none". Default is 1457 * all six. 1458 * -p Display values in parsable (literal) format. 1459 * 1460 * Prints properties for the given datasets. The user can control which 1461 * columns to display as well as which property types to allow. 1462 */ 1463 1464/* 1465 * Invoked to display the properties for a single dataset. 1466 */ 1467static int 1468get_callback(zfs_handle_t *zhp, void *data) 1469{ 1470 char buf[ZFS_MAXPROPLEN]; 1471 char rbuf[ZFS_MAXPROPLEN]; 1472 zprop_source_t sourcetype; 1473 char source[ZFS_MAXNAMELEN]; 1474 zprop_get_cbdata_t *cbp = data; 1475 nvlist_t *user_props = zfs_get_user_props(zhp); 1476 zprop_list_t *pl = cbp->cb_proplist; 1477 nvlist_t *propval; 1478 char *strval; 1479 char *sourceval; 1480 boolean_t received = is_recvd_column(cbp); 1481 1482 for (; pl != NULL; pl = pl->pl_next) { 1483 char *recvdval = NULL; 1484 /* 1485 * Skip the special fake placeholder. This will also skip over 1486 * the name property when 'all' is specified. 1487 */ 1488 if (pl->pl_prop == ZFS_PROP_NAME && 1489 pl == cbp->cb_proplist) 1490 continue; 1491 1492 if (pl->pl_prop != ZPROP_INVAL) { 1493 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1494 sizeof (buf), &sourcetype, source, 1495 sizeof (source), 1496 cbp->cb_literal) != 0) { 1497 if (pl->pl_all) 1498 continue; 1499 if (!zfs_prop_valid_for_type(pl->pl_prop, 1500 ZFS_TYPE_DATASET)) { 1501 (void) fprintf(stderr, 1502 gettext("No such property '%s'\n"), 1503 zfs_prop_to_name(pl->pl_prop)); 1504 continue; 1505 } 1506 sourcetype = ZPROP_SRC_NONE; 1507 (void) strlcpy(buf, "-", sizeof (buf)); 1508 } 1509 1510 if (received && (zfs_prop_get_recvd(zhp, 1511 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1512 cbp->cb_literal) == 0)) 1513 recvdval = rbuf; 1514 1515 zprop_print_one_property(zfs_get_name(zhp), cbp, 1516 zfs_prop_to_name(pl->pl_prop), 1517 buf, sourcetype, source, recvdval); 1518 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1519 sourcetype = ZPROP_SRC_LOCAL; 1520 1521 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1522 buf, sizeof (buf), cbp->cb_literal) != 0) { 1523 sourcetype = ZPROP_SRC_NONE; 1524 (void) strlcpy(buf, "-", sizeof (buf)); 1525 } 1526 1527 zprop_print_one_property(zfs_get_name(zhp), cbp, 1528 pl->pl_user_prop, buf, sourcetype, source, NULL); 1529 } else if (zfs_prop_written(pl->pl_user_prop)) { 1530 sourcetype = ZPROP_SRC_LOCAL; 1531 1532 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1533 buf, sizeof (buf), cbp->cb_literal) != 0) { 1534 sourcetype = ZPROP_SRC_NONE; 1535 (void) strlcpy(buf, "-", sizeof (buf)); 1536 } 1537 1538 zprop_print_one_property(zfs_get_name(zhp), cbp, 1539 pl->pl_user_prop, buf, sourcetype, source, NULL); 1540 } else { 1541 if (nvlist_lookup_nvlist(user_props, 1542 pl->pl_user_prop, &propval) != 0) { 1543 if (pl->pl_all) 1544 continue; 1545 sourcetype = ZPROP_SRC_NONE; 1546 strval = "-"; 1547 } else { 1548 verify(nvlist_lookup_string(propval, 1549 ZPROP_VALUE, &strval) == 0); 1550 verify(nvlist_lookup_string(propval, 1551 ZPROP_SOURCE, &sourceval) == 0); 1552 1553 if (strcmp(sourceval, 1554 zfs_get_name(zhp)) == 0) { 1555 sourcetype = ZPROP_SRC_LOCAL; 1556 } else if (strcmp(sourceval, 1557 ZPROP_SOURCE_VAL_RECVD) == 0) { 1558 sourcetype = ZPROP_SRC_RECEIVED; 1559 } else { 1560 sourcetype = ZPROP_SRC_INHERITED; 1561 (void) strlcpy(source, 1562 sourceval, sizeof (source)); 1563 } 1564 } 1565 1566 if (received && (zfs_prop_get_recvd(zhp, 1567 pl->pl_user_prop, rbuf, sizeof (rbuf), 1568 cbp->cb_literal) == 0)) 1569 recvdval = rbuf; 1570 1571 zprop_print_one_property(zfs_get_name(zhp), cbp, 1572 pl->pl_user_prop, strval, sourcetype, 1573 source, recvdval); 1574 } 1575 } 1576 1577 return (0); 1578} 1579 1580static int 1581zfs_do_get(int argc, char **argv) 1582{ 1583 zprop_get_cbdata_t cb = { 0 }; 1584 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1585 int types = ZFS_TYPE_DATASET; 1586 char *value, *fields; 1587 int ret = 0; 1588 int limit = 0; 1589 zprop_list_t fake_name = { 0 }; 1590 1591 /* 1592 * Set up default columns and sources. 1593 */ 1594 cb.cb_sources = ZPROP_SRC_ALL; 1595 cb.cb_columns[0] = GET_COL_NAME; 1596 cb.cb_columns[1] = GET_COL_PROPERTY; 1597 cb.cb_columns[2] = GET_COL_VALUE; 1598 cb.cb_columns[3] = GET_COL_SOURCE; 1599 cb.cb_type = ZFS_TYPE_DATASET; 1600 1601 /* check options */ 1602 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1603 switch (c) { 1604 case 'p': 1605 cb.cb_literal = B_TRUE; 1606 break; 1607 case 'd': 1608 limit = parse_depth(optarg, &flags); 1609 break; 1610 case 'r': 1611 flags |= ZFS_ITER_RECURSE; 1612 break; 1613 case 'H': 1614 cb.cb_scripted = B_TRUE; 1615 break; 1616 case ':': 1617 (void) fprintf(stderr, gettext("missing argument for " 1618 "'%c' option\n"), optopt); 1619 usage(B_FALSE); 1620 break; 1621 case 'o': 1622 /* 1623 * Process the set of columns to display. We zero out 1624 * the structure to give us a blank slate. 1625 */ 1626 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1627 i = 0; 1628 while (*optarg != '\0') { 1629 static char *col_subopts[] = 1630 { "name", "property", "value", "received", 1631 "source", "all", NULL }; 1632 1633 if (i == ZFS_GET_NCOLS) { 1634 (void) fprintf(stderr, gettext("too " 1635 "many fields given to -o " 1636 "option\n")); 1637 usage(B_FALSE); 1638 } 1639 1640 switch (getsubopt(&optarg, col_subopts, 1641 &value)) { 1642 case 0: 1643 cb.cb_columns[i++] = GET_COL_NAME; 1644 break; 1645 case 1: 1646 cb.cb_columns[i++] = GET_COL_PROPERTY; 1647 break; 1648 case 2: 1649 cb.cb_columns[i++] = GET_COL_VALUE; 1650 break; 1651 case 3: 1652 cb.cb_columns[i++] = GET_COL_RECVD; 1653 flags |= ZFS_ITER_RECVD_PROPS; 1654 break; 1655 case 4: 1656 cb.cb_columns[i++] = GET_COL_SOURCE; 1657 break; 1658 case 5: 1659 if (i > 0) { 1660 (void) fprintf(stderr, 1661 gettext("\"all\" conflicts " 1662 "with specific fields " 1663 "given to -o option\n")); 1664 usage(B_FALSE); 1665 } 1666 cb.cb_columns[0] = GET_COL_NAME; 1667 cb.cb_columns[1] = GET_COL_PROPERTY; 1668 cb.cb_columns[2] = GET_COL_VALUE; 1669 cb.cb_columns[3] = GET_COL_RECVD; 1670 cb.cb_columns[4] = GET_COL_SOURCE; 1671 flags |= ZFS_ITER_RECVD_PROPS; 1672 i = ZFS_GET_NCOLS; 1673 break; 1674 default: 1675 (void) fprintf(stderr, 1676 gettext("invalid column name " 1677 "'%s'\n"), value); 1678 usage(B_FALSE); 1679 } 1680 } 1681 break; 1682 1683 case 's': 1684 cb.cb_sources = 0; 1685 while (*optarg != '\0') { 1686 static char *source_subopts[] = { 1687 "local", "default", "inherited", 1688 "received", "temporary", "none", 1689 NULL }; 1690 1691 switch (getsubopt(&optarg, source_subopts, 1692 &value)) { 1693 case 0: 1694 cb.cb_sources |= ZPROP_SRC_LOCAL; 1695 break; 1696 case 1: 1697 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1698 break; 1699 case 2: 1700 cb.cb_sources |= ZPROP_SRC_INHERITED; 1701 break; 1702 case 3: 1703 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1704 break; 1705 case 4: 1706 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1707 break; 1708 case 5: 1709 cb.cb_sources |= ZPROP_SRC_NONE; 1710 break; 1711 default: 1712 (void) fprintf(stderr, 1713 gettext("invalid source " 1714 "'%s'\n"), value); 1715 usage(B_FALSE); 1716 } 1717 } 1718 break; 1719 1720 case 't': 1721 types = 0; 1722 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1723 while (*optarg != '\0') { 1724 static char *type_subopts[] = { "filesystem", 1725 "volume", "snapshot", "bookmark", 1726 "all", NULL }; 1727 1728 switch (getsubopt(&optarg, type_subopts, 1729 &value)) { 1730 case 0: 1731 types |= ZFS_TYPE_FILESYSTEM; 1732 break; 1733 case 1: 1734 types |= ZFS_TYPE_VOLUME; 1735 break; 1736 case 2: 1737 types |= ZFS_TYPE_SNAPSHOT; 1738 break; 1739 case 3: 1740 types |= ZFS_TYPE_BOOKMARK; 1741 break; 1742 case 4: 1743 types = ZFS_TYPE_DATASET | 1744 ZFS_TYPE_BOOKMARK; 1745 break; 1746 1747 default: 1748 (void) fprintf(stderr, 1749 gettext("invalid type '%s'\n"), 1750 value); 1751 usage(B_FALSE); 1752 } 1753 } 1754 break; 1755 1756 case '?': 1757 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1758 optopt); 1759 usage(B_FALSE); 1760 } 1761 } 1762 1763 argc -= optind; 1764 argv += optind; 1765 1766 if (argc < 1) { 1767 (void) fprintf(stderr, gettext("missing property " 1768 "argument\n")); 1769 usage(B_FALSE); 1770 } 1771 1772 fields = argv[0]; 1773 1774 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1775 != 0) 1776 usage(B_FALSE); 1777 1778 argc--; 1779 argv++; 1780 1781 /* 1782 * As part of zfs_expand_proplist(), we keep track of the maximum column 1783 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1784 * need to know the maximum name length. However, the user likely did 1785 * not specify 'name' as one of the properties to fetch, so we need to 1786 * make sure we always include at least this property for 1787 * print_get_headers() to work properly. 1788 */ 1789 if (cb.cb_proplist != NULL) { 1790 fake_name.pl_prop = ZFS_PROP_NAME; 1791 fake_name.pl_width = strlen(gettext("NAME")); 1792 fake_name.pl_next = cb.cb_proplist; 1793 cb.cb_proplist = &fake_name; 1794 } 1795 1796 cb.cb_first = B_TRUE; 1797 1798 /* run for each object */ 1799 ret = zfs_for_each(argc, argv, flags, types, NULL, 1800 &cb.cb_proplist, limit, get_callback, &cb); 1801 1802 if (cb.cb_proplist == &fake_name) 1803 zprop_free_list(fake_name.pl_next); 1804 else 1805 zprop_free_list(cb.cb_proplist); 1806 1807 return (ret); 1808} 1809 1810/* 1811 * inherit [-rS] <property> <fs|vol> ... 1812 * 1813 * -r Recurse over all children 1814 * -S Revert to received value, if any 1815 * 1816 * For each dataset specified on the command line, inherit the given property 1817 * from its parent. Inheriting a property at the pool level will cause it to 1818 * use the default value. The '-r' flag will recurse over all children, and is 1819 * useful for setting a property on a hierarchy-wide basis, regardless of any 1820 * local modifications for each dataset. 1821 */ 1822 1823typedef struct inherit_cbdata { 1824 const char *cb_propname; 1825 boolean_t cb_received; 1826} inherit_cbdata_t; 1827 1828static int 1829inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1830{ 1831 inherit_cbdata_t *cb = data; 1832 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1833 1834 /* 1835 * If we're doing it recursively, then ignore properties that 1836 * are not valid for this type of dataset. 1837 */ 1838 if (prop != ZPROP_INVAL && 1839 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1840 return (0); 1841 1842 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1843} 1844 1845static int 1846inherit_cb(zfs_handle_t *zhp, void *data) 1847{ 1848 inherit_cbdata_t *cb = data; 1849 1850 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1851} 1852 1853static int 1854zfs_do_inherit(int argc, char **argv) 1855{ 1856 int c; 1857 zfs_prop_t prop; 1858 inherit_cbdata_t cb = { 0 }; 1859 char *propname; 1860 int ret = 0; 1861 int flags = 0; 1862 boolean_t received = B_FALSE; 1863 1864 /* check options */ 1865 while ((c = getopt(argc, argv, "rS")) != -1) { 1866 switch (c) { 1867 case 'r': 1868 flags |= ZFS_ITER_RECURSE; 1869 break; 1870 case 'S': 1871 received = B_TRUE; 1872 break; 1873 case '?': 1874 default: 1875 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1876 optopt); 1877 usage(B_FALSE); 1878 } 1879 } 1880 1881 argc -= optind; 1882 argv += optind; 1883 1884 /* check number of arguments */ 1885 if (argc < 1) { 1886 (void) fprintf(stderr, gettext("missing property argument\n")); 1887 usage(B_FALSE); 1888 } 1889 if (argc < 2) { 1890 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1891 usage(B_FALSE); 1892 } 1893 1894 propname = argv[0]; 1895 argc--; 1896 argv++; 1897 1898 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1899 if (zfs_prop_readonly(prop)) { 1900 (void) fprintf(stderr, gettext( 1901 "%s property is read-only\n"), 1902 propname); 1903 return (1); 1904 } 1905 if (!zfs_prop_inheritable(prop) && !received) { 1906 (void) fprintf(stderr, gettext("'%s' property cannot " 1907 "be inherited\n"), propname); 1908 if (prop == ZFS_PROP_QUOTA || 1909 prop == ZFS_PROP_RESERVATION || 1910 prop == ZFS_PROP_REFQUOTA || 1911 prop == ZFS_PROP_REFRESERVATION) 1912 (void) fprintf(stderr, gettext("use 'zfs set " 1913 "%s=none' to clear\n"), propname); 1914 return (1); 1915 } 1916 if (received && (prop == ZFS_PROP_VOLSIZE || 1917 prop == ZFS_PROP_VERSION)) { 1918 (void) fprintf(stderr, gettext("'%s' property cannot " 1919 "be reverted to a received value\n"), propname); 1920 return (1); 1921 } 1922 } else if (!zfs_prop_user(propname)) { 1923 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1924 propname); 1925 usage(B_FALSE); 1926 } 1927 1928 cb.cb_propname = propname; 1929 cb.cb_received = received; 1930 1931 if (flags & ZFS_ITER_RECURSE) { 1932 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1933 NULL, NULL, 0, inherit_recurse_cb, &cb); 1934 } else { 1935 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1936 NULL, NULL, 0, inherit_cb, &cb); 1937 } 1938 1939 return (ret); 1940} 1941 1942typedef struct upgrade_cbdata { 1943 uint64_t cb_numupgraded; 1944 uint64_t cb_numsamegraded; 1945 uint64_t cb_numfailed; 1946 uint64_t cb_version; 1947 boolean_t cb_newer; 1948 boolean_t cb_foundone; 1949 char cb_lastfs[ZFS_MAXNAMELEN]; 1950} upgrade_cbdata_t; 1951 1952static int 1953same_pool(zfs_handle_t *zhp, const char *name) 1954{ 1955 int len1 = strcspn(name, "/@"); 1956 const char *zhname = zfs_get_name(zhp); 1957 int len2 = strcspn(zhname, "/@"); 1958 1959 if (len1 != len2) 1960 return (B_FALSE); 1961 return (strncmp(name, zhname, len1) == 0); 1962} 1963 1964static int 1965upgrade_list_callback(zfs_handle_t *zhp, void *data) 1966{ 1967 upgrade_cbdata_t *cb = data; 1968 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1969 1970 /* list if it's old/new */ 1971 if ((!cb->cb_newer && version < ZPL_VERSION) || 1972 (cb->cb_newer && version > ZPL_VERSION)) { 1973 char *str; 1974 if (cb->cb_newer) { 1975 str = gettext("The following filesystems are " 1976 "formatted using a newer software version and\n" 1977 "cannot be accessed on the current system.\n\n"); 1978 } else { 1979 str = gettext("The following filesystems are " 1980 "out of date, and can be upgraded. After being\n" 1981 "upgraded, these filesystems (and any 'zfs send' " 1982 "streams generated from\n" 1983 "subsequent snapshots) will no longer be " 1984 "accessible by older software versions.\n\n"); 1985 } 1986 1987 if (!cb->cb_foundone) { 1988 (void) puts(str); 1989 (void) printf(gettext("VER FILESYSTEM\n")); 1990 (void) printf(gettext("--- ------------\n")); 1991 cb->cb_foundone = B_TRUE; 1992 } 1993 1994 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1995 } 1996 1997 return (0); 1998} 1999 2000static int 2001upgrade_set_callback(zfs_handle_t *zhp, void *data) 2002{ 2003 upgrade_cbdata_t *cb = data; 2004 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2005 int needed_spa_version; 2006 int spa_version; 2007 2008 if (zfs_spa_version(zhp, &spa_version) < 0) 2009 return (-1); 2010 2011 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2012 2013 if (needed_spa_version < 0) 2014 return (-1); 2015 2016 if (spa_version < needed_spa_version) { 2017 /* can't upgrade */ 2018 (void) printf(gettext("%s: can not be " 2019 "upgraded; the pool version needs to first " 2020 "be upgraded\nto version %d\n\n"), 2021 zfs_get_name(zhp), needed_spa_version); 2022 cb->cb_numfailed++; 2023 return (0); 2024 } 2025 2026 /* upgrade */ 2027 if (version < cb->cb_version) { 2028 char verstr[16]; 2029 (void) snprintf(verstr, sizeof (verstr), 2030 "%llu", cb->cb_version); 2031 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2032 /* 2033 * If they did "zfs upgrade -a", then we could 2034 * be doing ioctls to different pools. We need 2035 * to log this history once to each pool, and bypass 2036 * the normal history logging that happens in main(). 2037 */ 2038 (void) zpool_log_history(g_zfs, history_str); 2039 log_history = B_FALSE; 2040 } 2041 if (zfs_prop_set(zhp, "version", verstr) == 0) 2042 cb->cb_numupgraded++; 2043 else 2044 cb->cb_numfailed++; 2045 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2046 } else if (version > cb->cb_version) { 2047 /* can't downgrade */ 2048 (void) printf(gettext("%s: can not be downgraded; " 2049 "it is already at version %u\n"), 2050 zfs_get_name(zhp), version); 2051 cb->cb_numfailed++; 2052 } else { 2053 cb->cb_numsamegraded++; 2054 } 2055 return (0); 2056} 2057 2058/* 2059 * zfs upgrade 2060 * zfs upgrade -v 2061 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2062 */ 2063static int 2064zfs_do_upgrade(int argc, char **argv) 2065{ 2066 boolean_t all = B_FALSE; 2067 boolean_t showversions = B_FALSE; 2068 int ret = 0; 2069 upgrade_cbdata_t cb = { 0 }; 2070 int c; 2071 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2072 2073 /* check options */ 2074 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2075 switch (c) { 2076 case 'r': 2077 flags |= ZFS_ITER_RECURSE; 2078 break; 2079 case 'v': 2080 showversions = B_TRUE; 2081 break; 2082 case 'V': 2083 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2084 optarg, &cb.cb_version) != 0) { 2085 (void) fprintf(stderr, 2086 gettext("invalid version %s\n"), optarg); 2087 usage(B_FALSE); 2088 } 2089 break; 2090 case 'a': 2091 all = B_TRUE; 2092 break; 2093 case '?': 2094 default: 2095 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2096 optopt); 2097 usage(B_FALSE); 2098 } 2099 } 2100 2101 argc -= optind; 2102 argv += optind; 2103 2104 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2105 usage(B_FALSE); 2106 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2107 cb.cb_version || argc)) 2108 usage(B_FALSE); 2109 if ((all || argc) && (showversions)) 2110 usage(B_FALSE); 2111 if (all && argc) 2112 usage(B_FALSE); 2113 2114 if (showversions) { 2115 /* Show info on available versions. */ 2116 (void) printf(gettext("The following filesystem versions are " 2117 "supported:\n\n")); 2118 (void) printf(gettext("VER DESCRIPTION\n")); 2119 (void) printf("--- -----------------------------------------" 2120 "---------------\n"); 2121 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2122 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2123 (void) printf(gettext(" 3 Case insensitive and filesystem " 2124 "user identifier (FUID)\n")); 2125 (void) printf(gettext(" 4 userquota, groupquota " 2126 "properties\n")); 2127 (void) printf(gettext(" 5 System attributes\n")); 2128 (void) printf(gettext("\nFor more information on a particular " 2129 "version, including supported releases,\n")); 2130 (void) printf("see the ZFS Administration Guide.\n\n"); 2131 ret = 0; 2132 } else if (argc || all) { 2133 /* Upgrade filesystems */ 2134 if (cb.cb_version == 0) 2135 cb.cb_version = ZPL_VERSION; 2136 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2137 NULL, NULL, 0, upgrade_set_callback, &cb); 2138 (void) printf(gettext("%llu filesystems upgraded\n"), 2139 cb.cb_numupgraded); 2140 if (cb.cb_numsamegraded) { 2141 (void) printf(gettext("%llu filesystems already at " 2142 "this version\n"), 2143 cb.cb_numsamegraded); 2144 } 2145 if (cb.cb_numfailed != 0) 2146 ret = 1; 2147 } else { 2148 /* List old-version filesytems */ 2149 boolean_t found; 2150 (void) printf(gettext("This system is currently running " 2151 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2152 2153 flags |= ZFS_ITER_RECURSE; 2154 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2155 NULL, NULL, 0, upgrade_list_callback, &cb); 2156 2157 found = cb.cb_foundone; 2158 cb.cb_foundone = B_FALSE; 2159 cb.cb_newer = B_TRUE; 2160 2161 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2162 NULL, NULL, 0, upgrade_list_callback, &cb); 2163 2164 if (!cb.cb_foundone && !found) { 2165 (void) printf(gettext("All filesystems are " 2166 "formatted with the current version.\n")); 2167 } 2168 } 2169 2170 return (ret); 2171} 2172 2173/* 2174 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2175 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2176 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2177 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2178 * 2179 * -H Scripted mode; elide headers and separate columns by tabs. 2180 * -i Translate SID to POSIX ID. 2181 * -n Print numeric ID instead of user/group name. 2182 * -o Control which fields to display. 2183 * -p Use exact (parsable) numeric output. 2184 * -s Specify sort columns, descending order. 2185 * -S Specify sort columns, ascending order. 2186 * -t Control which object types to display. 2187 * 2188 * Displays space consumed by, and quotas on, each user in the specified 2189 * filesystem or snapshot. 2190 */ 2191 2192/* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2193enum us_field_types { 2194 USFIELD_TYPE, 2195 USFIELD_NAME, 2196 USFIELD_USED, 2197 USFIELD_QUOTA 2198}; 2199static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2200static char *us_field_names[] = { "type", "name", "used", "quota" }; 2201#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2202 2203#define USTYPE_PSX_GRP (1 << 0) 2204#define USTYPE_PSX_USR (1 << 1) 2205#define USTYPE_SMB_GRP (1 << 2) 2206#define USTYPE_SMB_USR (1 << 3) 2207#define USTYPE_ALL \ 2208 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2209 2210static int us_type_bits[] = { 2211 USTYPE_PSX_GRP, 2212 USTYPE_PSX_USR, 2213 USTYPE_SMB_GRP, 2214 USTYPE_SMB_USR, 2215 USTYPE_ALL 2216}; 2217static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2218 "smbuser", "all" }; 2219 2220typedef struct us_node { 2221 nvlist_t *usn_nvl; 2222 uu_avl_node_t usn_avlnode; 2223 uu_list_node_t usn_listnode; 2224} us_node_t; 2225 2226typedef struct us_cbdata { 2227 nvlist_t **cb_nvlp; 2228 uu_avl_pool_t *cb_avl_pool; 2229 uu_avl_t *cb_avl; 2230 boolean_t cb_numname; 2231 boolean_t cb_nicenum; 2232 boolean_t cb_sid2posix; 2233 zfs_userquota_prop_t cb_prop; 2234 zfs_sort_column_t *cb_sortcol; 2235 size_t cb_width[USFIELD_LAST]; 2236} us_cbdata_t; 2237 2238static boolean_t us_populated = B_FALSE; 2239 2240typedef struct { 2241 zfs_sort_column_t *si_sortcol; 2242 boolean_t si_numname; 2243} us_sort_info_t; 2244 2245static int 2246us_field_index(char *field) 2247{ 2248 int i; 2249 2250 for (i = 0; i < USFIELD_LAST; i++) { 2251 if (strcmp(field, us_field_names[i]) == 0) 2252 return (i); 2253 } 2254 2255 return (-1); 2256} 2257 2258static int 2259us_compare(const void *larg, const void *rarg, void *unused) 2260{ 2261 const us_node_t *l = larg; 2262 const us_node_t *r = rarg; 2263 us_sort_info_t *si = (us_sort_info_t *)unused; 2264 zfs_sort_column_t *sortcol = si->si_sortcol; 2265 boolean_t numname = si->si_numname; 2266 nvlist_t *lnvl = l->usn_nvl; 2267 nvlist_t *rnvl = r->usn_nvl; 2268 int rc = 0; 2269 boolean_t lvb, rvb; 2270 2271 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2272 char *lvstr = ""; 2273 char *rvstr = ""; 2274 uint32_t lv32 = 0; 2275 uint32_t rv32 = 0; 2276 uint64_t lv64 = 0; 2277 uint64_t rv64 = 0; 2278 zfs_prop_t prop = sortcol->sc_prop; 2279 const char *propname = NULL; 2280 boolean_t reverse = sortcol->sc_reverse; 2281 2282 switch (prop) { 2283 case ZFS_PROP_TYPE: 2284 propname = "type"; 2285 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2286 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2287 if (rv32 != lv32) 2288 rc = (rv32 < lv32) ? 1 : -1; 2289 break; 2290 case ZFS_PROP_NAME: 2291 propname = "name"; 2292 if (numname) { 2293 (void) nvlist_lookup_uint64(lnvl, propname, 2294 &lv64); 2295 (void) nvlist_lookup_uint64(rnvl, propname, 2296 &rv64); 2297 if (rv64 != lv64) 2298 rc = (rv64 < lv64) ? 1 : -1; 2299 } else { 2300 (void) nvlist_lookup_string(lnvl, propname, 2301 &lvstr); 2302 (void) nvlist_lookup_string(rnvl, propname, 2303 &rvstr); 2304 rc = strcmp(lvstr, rvstr); 2305 } 2306 break; 2307 case ZFS_PROP_USED: 2308 case ZFS_PROP_QUOTA: 2309 if (!us_populated) 2310 break; 2311 if (prop == ZFS_PROP_USED) 2312 propname = "used"; 2313 else 2314 propname = "quota"; 2315 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2316 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2317 if (rv64 != lv64) 2318 rc = (rv64 < lv64) ? 1 : -1; 2319 break; 2320 } 2321 2322 if (rc != 0) { 2323 if (rc < 0) 2324 return (reverse ? 1 : -1); 2325 else 2326 return (reverse ? -1 : 1); 2327 } 2328 } 2329 2330 /* 2331 * If entries still seem to be the same, check if they are of the same 2332 * type (smbentity is added only if we are doing SID to POSIX ID 2333 * translation where we can have duplicate type/name combinations). 2334 */ 2335 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2336 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2337 lvb != rvb) 2338 return (lvb < rvb ? -1 : 1); 2339 2340 return (0); 2341} 2342 2343static inline const char * 2344us_type2str(unsigned field_type) 2345{ 2346 switch (field_type) { 2347 case USTYPE_PSX_USR: 2348 return ("POSIX User"); 2349 case USTYPE_PSX_GRP: 2350 return ("POSIX Group"); 2351 case USTYPE_SMB_USR: 2352 return ("SMB User"); 2353 case USTYPE_SMB_GRP: 2354 return ("SMB Group"); 2355 default: 2356 return ("Undefined"); 2357 } 2358} 2359 2360static int 2361userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2362{ 2363 us_cbdata_t *cb = (us_cbdata_t *)arg; 2364 zfs_userquota_prop_t prop = cb->cb_prop; 2365 char *name = NULL; 2366 char *propname; 2367 char sizebuf[32]; 2368 us_node_t *node; 2369 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2370 uu_avl_t *avl = cb->cb_avl; 2371 uu_avl_index_t idx; 2372 nvlist_t *props; 2373 us_node_t *n; 2374 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2375 unsigned type; 2376 const char *typestr; 2377 size_t namelen; 2378 size_t typelen; 2379 size_t sizelen; 2380 int typeidx, nameidx, sizeidx; 2381 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2382 boolean_t smbentity = B_FALSE; 2383 2384 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2385 nomem(); 2386 node = safe_malloc(sizeof (us_node_t)); 2387 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2388 node->usn_nvl = props; 2389 2390 if (domain != NULL && domain[0] != '\0') { 2391 /* SMB */ 2392 char sid[ZFS_MAXNAMELEN + 32]; 2393 uid_t id; 2394#ifdef sun 2395 int err; 2396 int flag = IDMAP_REQ_FLG_USE_CACHE; 2397#endif 2398 2399 smbentity = B_TRUE; 2400 2401 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2402 2403 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2404 type = USTYPE_SMB_GRP; 2405#ifdef sun 2406 err = sid_to_id(sid, B_FALSE, &id); 2407#endif 2408 } else { 2409 type = USTYPE_SMB_USR; 2410#ifdef sun 2411 err = sid_to_id(sid, B_TRUE, &id); 2412#endif 2413 } 2414 2415#ifdef sun 2416 if (err == 0) { 2417 rid = id; 2418 if (!cb->cb_sid2posix) { 2419 if (type == USTYPE_SMB_USR) { 2420 (void) idmap_getwinnamebyuid(rid, flag, 2421 &name, NULL); 2422 } else { 2423 (void) idmap_getwinnamebygid(rid, flag, 2424 &name, NULL); 2425 } 2426 if (name == NULL) 2427 name = sid; 2428 } 2429 } 2430#endif 2431 } 2432 2433 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2434 /* POSIX or -i */ 2435 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2436 type = USTYPE_PSX_GRP; 2437 if (!cb->cb_numname) { 2438 struct group *g; 2439 2440 if ((g = getgrgid(rid)) != NULL) 2441 name = g->gr_name; 2442 } 2443 } else { 2444 type = USTYPE_PSX_USR; 2445 if (!cb->cb_numname) { 2446 struct passwd *p; 2447 2448 if ((p = getpwuid(rid)) != NULL) 2449 name = p->pw_name; 2450 } 2451 } 2452 } 2453 2454 /* 2455 * Make sure that the type/name combination is unique when doing 2456 * SID to POSIX ID translation (hence changing the type from SMB to 2457 * POSIX). 2458 */ 2459 if (cb->cb_sid2posix && 2460 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2461 nomem(); 2462 2463 /* Calculate/update width of TYPE field */ 2464 typestr = us_type2str(type); 2465 typelen = strlen(gettext(typestr)); 2466 typeidx = us_field_index("type"); 2467 if (typelen > cb->cb_width[typeidx]) 2468 cb->cb_width[typeidx] = typelen; 2469 if (nvlist_add_uint32(props, "type", type) != 0) 2470 nomem(); 2471 2472 /* Calculate/update width of NAME field */ 2473 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2474 if (nvlist_add_uint64(props, "name", rid) != 0) 2475 nomem(); 2476 namelen = snprintf(NULL, 0, "%u", rid); 2477 } else { 2478 if (nvlist_add_string(props, "name", name) != 0) 2479 nomem(); 2480 namelen = strlen(name); 2481 } 2482 nameidx = us_field_index("name"); 2483 if (namelen > cb->cb_width[nameidx]) 2484 cb->cb_width[nameidx] = namelen; 2485 2486 /* 2487 * Check if this type/name combination is in the list and update it; 2488 * otherwise add new node to the list. 2489 */ 2490 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2491 uu_avl_insert(avl, node, idx); 2492 } else { 2493 nvlist_free(props); 2494 free(node); 2495 node = n; 2496 props = node->usn_nvl; 2497 } 2498 2499 /* Calculate/update width of USED/QUOTA fields */ 2500 if (cb->cb_nicenum) 2501 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2502 else 2503 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2504 sizelen = strlen(sizebuf); 2505 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2506 propname = "used"; 2507 if (!nvlist_exists(props, "quota")) 2508 (void) nvlist_add_uint64(props, "quota", 0); 2509 } else { 2510 propname = "quota"; 2511 if (!nvlist_exists(props, "used")) 2512 (void) nvlist_add_uint64(props, "used", 0); 2513 } 2514 sizeidx = us_field_index(propname); 2515 if (sizelen > cb->cb_width[sizeidx]) 2516 cb->cb_width[sizeidx] = sizelen; 2517 2518 if (nvlist_add_uint64(props, propname, space) != 0) 2519 nomem(); 2520 2521 return (0); 2522} 2523 2524static void 2525print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2526 size_t *width, us_node_t *node) 2527{ 2528 nvlist_t *nvl = node->usn_nvl; 2529 char valstr[ZFS_MAXNAMELEN]; 2530 boolean_t first = B_TRUE; 2531 int cfield = 0; 2532 int field; 2533 uint32_t ustype; 2534 2535 /* Check type */ 2536 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2537 if (!(ustype & types)) 2538 return; 2539 2540 while ((field = fields[cfield]) != USFIELD_LAST) { 2541 nvpair_t *nvp = NULL; 2542 data_type_t type; 2543 uint32_t val32; 2544 uint64_t val64; 2545 char *strval = NULL; 2546 2547 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2548 if (strcmp(nvpair_name(nvp), 2549 us_field_names[field]) == 0) 2550 break; 2551 } 2552 2553 type = nvpair_type(nvp); 2554 switch (type) { 2555 case DATA_TYPE_UINT32: 2556 (void) nvpair_value_uint32(nvp, &val32); 2557 break; 2558 case DATA_TYPE_UINT64: 2559 (void) nvpair_value_uint64(nvp, &val64); 2560 break; 2561 case DATA_TYPE_STRING: 2562 (void) nvpair_value_string(nvp, &strval); 2563 break; 2564 default: 2565 (void) fprintf(stderr, "invalid data type\n"); 2566 } 2567 2568 switch (field) { 2569 case USFIELD_TYPE: 2570 strval = (char *)us_type2str(val32); 2571 break; 2572 case USFIELD_NAME: 2573 if (type == DATA_TYPE_UINT64) { 2574 (void) sprintf(valstr, "%llu", val64); 2575 strval = valstr; 2576 } 2577 break; 2578 case USFIELD_USED: 2579 case USFIELD_QUOTA: 2580 if (type == DATA_TYPE_UINT64) { 2581 if (parsable) { 2582 (void) sprintf(valstr, "%llu", val64); 2583 } else { 2584 zfs_nicenum(val64, valstr, 2585 sizeof (valstr)); 2586 } 2587 if (field == USFIELD_QUOTA && 2588 strcmp(valstr, "0") == 0) 2589 strval = "none"; 2590 else 2591 strval = valstr; 2592 } 2593 break; 2594 } 2595 2596 if (!first) { 2597 if (scripted) 2598 (void) printf("\t"); 2599 else 2600 (void) printf(" "); 2601 } 2602 if (scripted) 2603 (void) printf("%s", strval); 2604 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2605 (void) printf("%-*s", width[field], strval); 2606 else 2607 (void) printf("%*s", width[field], strval); 2608 2609 first = B_FALSE; 2610 cfield++; 2611 } 2612 2613 (void) printf("\n"); 2614} 2615 2616static void 2617print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2618 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2619{ 2620 us_node_t *node; 2621 const char *col; 2622 int cfield = 0; 2623 int field; 2624 2625 if (!scripted) { 2626 boolean_t first = B_TRUE; 2627 2628 while ((field = fields[cfield]) != USFIELD_LAST) { 2629 col = gettext(us_field_hdr[field]); 2630 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2631 (void) printf(first ? "%-*s" : " %-*s", 2632 width[field], col); 2633 } else { 2634 (void) printf(first ? "%*s" : " %*s", 2635 width[field], col); 2636 } 2637 first = B_FALSE; 2638 cfield++; 2639 } 2640 (void) printf("\n"); 2641 } 2642 2643 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2644 print_us_node(scripted, parsable, fields, types, width, node); 2645 if (rmnode) 2646 nvlist_free(node->usn_nvl); 2647 } 2648} 2649 2650static int 2651zfs_do_userspace(int argc, char **argv) 2652{ 2653 zfs_handle_t *zhp; 2654 zfs_userquota_prop_t p; 2655 2656 uu_avl_pool_t *avl_pool; 2657 uu_avl_t *avl_tree; 2658 uu_avl_walk_t *walk; 2659 char *delim; 2660 char deffields[] = "type,name,used,quota"; 2661 char *ofield = NULL; 2662 char *tfield = NULL; 2663 int cfield = 0; 2664 int fields[256]; 2665 int i; 2666 boolean_t scripted = B_FALSE; 2667 boolean_t prtnum = B_FALSE; 2668 boolean_t parsable = B_FALSE; 2669 boolean_t sid2posix = B_FALSE; 2670 int ret = 0; 2671 int c; 2672 zfs_sort_column_t *sortcol = NULL; 2673 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2674 us_cbdata_t cb; 2675 us_node_t *node; 2676 us_node_t *rmnode; 2677 uu_list_pool_t *listpool; 2678 uu_list_t *list; 2679 uu_avl_index_t idx = 0; 2680 uu_list_index_t idx2 = 0; 2681 2682 if (argc < 2) 2683 usage(B_FALSE); 2684 2685 if (strcmp(argv[0], "groupspace") == 0) 2686 /* Toggle default group types */ 2687 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2688 2689 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2690 switch (c) { 2691 case 'n': 2692 prtnum = B_TRUE; 2693 break; 2694 case 'H': 2695 scripted = B_TRUE; 2696 break; 2697 case 'p': 2698 parsable = B_TRUE; 2699 break; 2700 case 'o': 2701 ofield = optarg; 2702 break; 2703 case 's': 2704 case 'S': 2705 if (zfs_add_sort_column(&sortcol, optarg, 2706 c == 's' ? B_FALSE : B_TRUE) != 0) { 2707 (void) fprintf(stderr, 2708 gettext("invalid field '%s'\n"), optarg); 2709 usage(B_FALSE); 2710 } 2711 break; 2712 case 't': 2713 tfield = optarg; 2714 break; 2715 case 'i': 2716 sid2posix = B_TRUE; 2717 break; 2718 case ':': 2719 (void) fprintf(stderr, gettext("missing argument for " 2720 "'%c' option\n"), optopt); 2721 usage(B_FALSE); 2722 break; 2723 case '?': 2724 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2725 optopt); 2726 usage(B_FALSE); 2727 } 2728 } 2729 2730 argc -= optind; 2731 argv += optind; 2732 2733 if (argc < 1) { 2734 (void) fprintf(stderr, gettext("missing dataset name\n")); 2735 usage(B_FALSE); 2736 } 2737 if (argc > 1) { 2738 (void) fprintf(stderr, gettext("too many arguments\n")); 2739 usage(B_FALSE); 2740 } 2741 2742 /* Use default output fields if not specified using -o */ 2743 if (ofield == NULL) 2744 ofield = deffields; 2745 do { 2746 if ((delim = strchr(ofield, ',')) != NULL) 2747 *delim = '\0'; 2748 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2749 (void) fprintf(stderr, gettext("invalid type '%s' " 2750 "for -o option\n"), ofield); 2751 return (-1); 2752 } 2753 if (delim != NULL) 2754 ofield = delim + 1; 2755 } while (delim != NULL); 2756 fields[cfield] = USFIELD_LAST; 2757 2758 /* Override output types (-t option) */ 2759 if (tfield != NULL) { 2760 types = 0; 2761 2762 do { 2763 boolean_t found = B_FALSE; 2764 2765 if ((delim = strchr(tfield, ',')) != NULL) 2766 *delim = '\0'; 2767 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2768 i++) { 2769 if (strcmp(tfield, us_type_names[i]) == 0) { 2770 found = B_TRUE; 2771 types |= us_type_bits[i]; 2772 break; 2773 } 2774 } 2775 if (!found) { 2776 (void) fprintf(stderr, gettext("invalid type " 2777 "'%s' for -t option\n"), tfield); 2778 return (-1); 2779 } 2780 if (delim != NULL) 2781 tfield = delim + 1; 2782 } while (delim != NULL); 2783 } 2784 2785 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2786 return (1); 2787 2788 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2789 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2790 nomem(); 2791 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2792 nomem(); 2793 2794 /* Always add default sorting columns */ 2795 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2796 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2797 2798 cb.cb_sortcol = sortcol; 2799 cb.cb_numname = prtnum; 2800 cb.cb_nicenum = !parsable; 2801 cb.cb_avl_pool = avl_pool; 2802 cb.cb_avl = avl_tree; 2803 cb.cb_sid2posix = sid2posix; 2804 2805 for (i = 0; i < USFIELD_LAST; i++) 2806 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2807 2808 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2809 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2810 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2811 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2812 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2813 continue; 2814 cb.cb_prop = p; 2815 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2816 return (ret); 2817 } 2818 2819 /* Sort the list */ 2820 if ((node = uu_avl_first(avl_tree)) == NULL) 2821 return (0); 2822 2823 us_populated = B_TRUE; 2824 2825 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2826 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2827 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2828 uu_list_node_init(node, &node->usn_listnode, listpool); 2829 2830 while (node != NULL) { 2831 rmnode = node; 2832 node = uu_avl_next(avl_tree, node); 2833 uu_avl_remove(avl_tree, rmnode); 2834 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2835 uu_list_insert(list, rmnode, idx2); 2836 } 2837 2838 for (node = uu_list_first(list); node != NULL; 2839 node = uu_list_next(list, node)) { 2840 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2841 2842 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2843 uu_avl_insert(avl_tree, node, idx); 2844 } 2845 2846 uu_list_destroy(list); 2847 uu_list_pool_destroy(listpool); 2848 2849 /* Print and free node nvlist memory */ 2850 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2851 cb.cb_avl); 2852 2853 zfs_free_sort_columns(sortcol); 2854 2855 /* Clean up the AVL tree */ 2856 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2857 nomem(); 2858 2859 while ((node = uu_avl_walk_next(walk)) != NULL) { 2860 uu_avl_remove(cb.cb_avl, node); 2861 free(node); 2862 } 2863 2864 uu_avl_walk_end(walk); 2865 uu_avl_destroy(avl_tree); 2866 uu_avl_pool_destroy(avl_pool); 2867 2868 return (ret); 2869} 2870 2871/* 2872 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2873 * [-t type[,...]] [filesystem|volume|snapshot] ... 2874 * 2875 * -H Scripted mode; elide headers and separate columns by tabs. 2876 * -p Display values in parsable (literal) format. 2877 * -r Recurse over all children. 2878 * -d Limit recursion by depth. 2879 * -o Control which fields to display. 2880 * -s Specify sort columns, descending order. 2881 * -S Specify sort columns, ascending order. 2882 * -t Control which object types to display. 2883 * 2884 * When given no arguments, list all filesystems in the system. 2885 * Otherwise, list the specified datasets, optionally recursing down them if 2886 * '-r' is specified. 2887 */ 2888typedef struct list_cbdata { 2889 boolean_t cb_first; 2890 boolean_t cb_literal; 2891 boolean_t cb_scripted; 2892 zprop_list_t *cb_proplist; 2893} list_cbdata_t; 2894 2895/* 2896 * Given a list of columns to display, output appropriate headers for each one. 2897 */ 2898static void 2899print_header(list_cbdata_t *cb) 2900{ 2901 zprop_list_t *pl = cb->cb_proplist; 2902 char headerbuf[ZFS_MAXPROPLEN]; 2903 const char *header; 2904 int i; 2905 boolean_t first = B_TRUE; 2906 boolean_t right_justify; 2907 2908 for (; pl != NULL; pl = pl->pl_next) { 2909 if (!first) { 2910 (void) printf(" "); 2911 } else { 2912 first = B_FALSE; 2913 } 2914 2915 right_justify = B_FALSE; 2916 if (pl->pl_prop != ZPROP_INVAL) { 2917 header = zfs_prop_column_name(pl->pl_prop); 2918 right_justify = zfs_prop_align_right(pl->pl_prop); 2919 } else { 2920 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2921 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2922 headerbuf[i] = '\0'; 2923 header = headerbuf; 2924 } 2925 2926 if (pl->pl_next == NULL && !right_justify) 2927 (void) printf("%s", header); 2928 else if (right_justify) 2929 (void) printf("%*s", pl->pl_width, header); 2930 else 2931 (void) printf("%-*s", pl->pl_width, header); 2932 } 2933 2934 (void) printf("\n"); 2935} 2936 2937/* 2938 * Given a dataset and a list of fields, print out all the properties according 2939 * to the described layout. 2940 */ 2941static void 2942print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2943{ 2944 zprop_list_t *pl = cb->cb_proplist; 2945 boolean_t first = B_TRUE; 2946 char property[ZFS_MAXPROPLEN]; 2947 nvlist_t *userprops = zfs_get_user_props(zhp); 2948 nvlist_t *propval; 2949 char *propstr; 2950 boolean_t right_justify; 2951 2952 for (; pl != NULL; pl = pl->pl_next) { 2953 if (!first) { 2954 if (cb->cb_scripted) 2955 (void) printf("\t"); 2956 else 2957 (void) printf(" "); 2958 } else { 2959 first = B_FALSE; 2960 } 2961 2962 if (pl->pl_prop == ZFS_PROP_NAME) { 2963 (void) strlcpy(property, zfs_get_name(zhp), 2964 sizeof(property)); 2965 propstr = property; 2966 right_justify = zfs_prop_align_right(pl->pl_prop); 2967 } else if (pl->pl_prop != ZPROP_INVAL) { 2968 if (zfs_prop_get(zhp, pl->pl_prop, property, 2969 sizeof (property), NULL, NULL, 0, 2970 cb->cb_literal) != 0) 2971 propstr = "-"; 2972 else 2973 propstr = property; 2974 right_justify = zfs_prop_align_right(pl->pl_prop); 2975 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2976 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2977 property, sizeof (property), cb->cb_literal) != 0) 2978 propstr = "-"; 2979 else 2980 propstr = property; 2981 right_justify = B_TRUE; 2982 } else if (zfs_prop_written(pl->pl_user_prop)) { 2983 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2984 property, sizeof (property), cb->cb_literal) != 0) 2985 propstr = "-"; 2986 else 2987 propstr = property; 2988 right_justify = B_TRUE; 2989 } else { 2990 if (nvlist_lookup_nvlist(userprops, 2991 pl->pl_user_prop, &propval) != 0) 2992 propstr = "-"; 2993 else 2994 verify(nvlist_lookup_string(propval, 2995 ZPROP_VALUE, &propstr) == 0); 2996 right_justify = B_FALSE; 2997 } 2998 2999 /* 3000 * If this is being called in scripted mode, or if this is the 3001 * last column and it is left-justified, don't include a width 3002 * format specifier. 3003 */ 3004 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3005 (void) printf("%s", propstr); 3006 else if (right_justify) 3007 (void) printf("%*s", pl->pl_width, propstr); 3008 else 3009 (void) printf("%-*s", pl->pl_width, propstr); 3010 } 3011 3012 (void) printf("\n"); 3013} 3014 3015/* 3016 * Generic callback function to list a dataset or snapshot. 3017 */ 3018static int 3019list_callback(zfs_handle_t *zhp, void *data) 3020{ 3021 list_cbdata_t *cbp = data; 3022 3023 if (cbp->cb_first) { 3024 if (!cbp->cb_scripted) 3025 print_header(cbp); 3026 cbp->cb_first = B_FALSE; 3027 } 3028 3029 print_dataset(zhp, cbp); 3030 3031 return (0); 3032} 3033 3034static int 3035zfs_do_list(int argc, char **argv) 3036{ 3037 int c; 3038 static char default_fields[] = 3039 "name,used,available,referenced,mountpoint"; 3040 int types = ZFS_TYPE_DATASET; 3041 boolean_t types_specified = B_FALSE; 3042 char *fields = NULL; 3043 list_cbdata_t cb = { 0 }; 3044 char *value; 3045 int limit = 0; 3046 int ret = 0; 3047 zfs_sort_column_t *sortcol = NULL; 3048 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3049 3050 /* check options */ 3051 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3052 switch (c) { 3053 case 'o': 3054 fields = optarg; 3055 break; 3056 case 'p': 3057 cb.cb_literal = B_TRUE; 3058 flags |= ZFS_ITER_LITERAL_PROPS; 3059 break; 3060 case 'd': 3061 limit = parse_depth(optarg, &flags); 3062 break; 3063 case 'r': 3064 flags |= ZFS_ITER_RECURSE; 3065 break; 3066 case 'H': 3067 cb.cb_scripted = B_TRUE; 3068 break; 3069 case 's': 3070 if (zfs_add_sort_column(&sortcol, optarg, 3071 B_FALSE) != 0) { 3072 (void) fprintf(stderr, 3073 gettext("invalid property '%s'\n"), optarg); 3074 usage(B_FALSE); 3075 } 3076 break; 3077 case 'S': 3078 if (zfs_add_sort_column(&sortcol, optarg, 3079 B_TRUE) != 0) { 3080 (void) fprintf(stderr, 3081 gettext("invalid property '%s'\n"), optarg); 3082 usage(B_FALSE); 3083 } 3084 break; 3085 case 't': 3086 types = 0; 3087 types_specified = B_TRUE; 3088 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3089 while (*optarg != '\0') { 3090 static char *type_subopts[] = { "filesystem", 3091 "volume", "snapshot", "snap", "bookmark", 3092 "all", NULL }; 3093 3094 switch (getsubopt(&optarg, type_subopts, 3095 &value)) { 3096 case 0: 3097 types |= ZFS_TYPE_FILESYSTEM; 3098 break; 3099 case 1: 3100 types |= ZFS_TYPE_VOLUME; 3101 break; 3102 case 2: 3103 case 3: 3104 types |= ZFS_TYPE_SNAPSHOT; 3105 break; 3106 case 4: 3107 types |= ZFS_TYPE_BOOKMARK; 3108 break; 3109 case 5: 3110 types = ZFS_TYPE_DATASET | 3111 ZFS_TYPE_BOOKMARK; 3112 break; 3113 default: 3114 (void) fprintf(stderr, 3115 gettext("invalid type '%s'\n"), 3116 value); 3117 usage(B_FALSE); 3118 } 3119 } 3120 break; 3121 case ':': 3122 (void) fprintf(stderr, gettext("missing argument for " 3123 "'%c' option\n"), optopt); 3124 usage(B_FALSE); 3125 break; 3126 case '?': 3127 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3128 optopt); 3129 usage(B_FALSE); 3130 } 3131 } 3132 3133 argc -= optind; 3134 argv += optind; 3135 3136 if (fields == NULL) 3137 fields = default_fields; 3138 3139 /* 3140 * If we are only going to list snapshot names and sort by name, 3141 * then we can use faster version. 3142 */ 3143 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3144 flags |= ZFS_ITER_SIMPLE; 3145 3146 /* 3147 * If "-o space" and no types were specified, don't display snapshots. 3148 */ 3149 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3150 types &= ~ZFS_TYPE_SNAPSHOT; 3151 3152 /* 3153 * If the user specifies '-o all', the zprop_get_list() doesn't 3154 * normally include the name of the dataset. For 'zfs list', we always 3155 * want this property to be first. 3156 */ 3157 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3158 != 0) 3159 usage(B_FALSE); 3160 3161 cb.cb_first = B_TRUE; 3162 3163 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3164 limit, list_callback, &cb); 3165 3166 zprop_free_list(cb.cb_proplist); 3167 zfs_free_sort_columns(sortcol); 3168 3169 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3170 (void) printf(gettext("no datasets available\n")); 3171 3172 return (ret); 3173} 3174 3175/* 3176 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3177 * zfs rename [-f] -p <fs | vol> <fs | vol> 3178 * zfs rename -r <snap> <snap> 3179 * zfs rename -u [-p] <fs> <fs> 3180 * 3181 * Renames the given dataset to another of the same type. 3182 * 3183 * The '-p' flag creates all the non-existing ancestors of the target first. 3184 */ 3185/* ARGSUSED */ 3186static int 3187zfs_do_rename(int argc, char **argv) 3188{ 3189 zfs_handle_t *zhp; 3190 renameflags_t flags = { 0 }; 3191 int c; 3192 int ret = 0; 3193 int types; 3194 boolean_t parents = B_FALSE; 3195 char *snapshot = NULL; 3196 3197 /* check options */ 3198 while ((c = getopt(argc, argv, "fpru")) != -1) { 3199 switch (c) { 3200 case 'p': 3201 parents = B_TRUE; 3202 break; 3203 case 'r': 3204 flags.recurse = B_TRUE; 3205 break; 3206 case 'u': 3207 flags.nounmount = B_TRUE; 3208 break; 3209 case 'f': 3210 flags.forceunmount = B_TRUE; 3211 break; 3212 case '?': 3213 default: 3214 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3215 optopt); 3216 usage(B_FALSE); 3217 } 3218 } 3219 3220 argc -= optind; 3221 argv += optind; 3222 3223 /* check number of arguments */ 3224 if (argc < 1) { 3225 (void) fprintf(stderr, gettext("missing source dataset " 3226 "argument\n")); 3227 usage(B_FALSE); 3228 } 3229 if (argc < 2) { 3230 (void) fprintf(stderr, gettext("missing target dataset " 3231 "argument\n")); 3232 usage(B_FALSE); 3233 } 3234 if (argc > 2) { 3235 (void) fprintf(stderr, gettext("too many arguments\n")); 3236 usage(B_FALSE); 3237 } 3238 3239 if (flags.recurse && parents) { 3240 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3241 "exclusive\n")); 3242 usage(B_FALSE); 3243 } 3244 3245 if (flags.recurse && strchr(argv[0], '@') == 0) { 3246 (void) fprintf(stderr, gettext("source dataset for recursive " 3247 "rename must be a snapshot\n")); 3248 usage(B_FALSE); 3249 } 3250 3251 if (flags.nounmount && parents) { 3252 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3253 "exclusive\n")); 3254 usage(B_FALSE); 3255 } 3256 3257 if (flags.nounmount) 3258 types = ZFS_TYPE_FILESYSTEM; 3259 else if (parents) 3260 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3261 else 3262 types = ZFS_TYPE_DATASET; 3263 3264 if (flags.recurse) { 3265 /* 3266 * When we do recursive rename we are fine when the given 3267 * snapshot for the given dataset doesn't exist - it can 3268 * still exists below. 3269 */ 3270 3271 snapshot = strchr(argv[0], '@'); 3272 assert(snapshot != NULL); 3273 *snapshot = '\0'; 3274 snapshot++; 3275 } 3276 3277 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3278 return (1); 3279 3280 /* If we were asked and the name looks good, try to create ancestors. */ 3281 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3282 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3283 zfs_close(zhp); 3284 return (1); 3285 } 3286 3287 ret = (zfs_rename(zhp, snapshot, argv[1], flags) != 0); 3288 3289 zfs_close(zhp); 3290 return (ret); 3291} 3292 3293/* 3294 * zfs promote <fs> 3295 * 3296 * Promotes the given clone fs to be the parent 3297 */ 3298/* ARGSUSED */ 3299static int 3300zfs_do_promote(int argc, char **argv) 3301{ 3302 zfs_handle_t *zhp; 3303 int ret = 0; 3304 3305 /* check options */ 3306 if (argc > 1 && argv[1][0] == '-') { 3307 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3308 argv[1][1]); 3309 usage(B_FALSE); 3310 } 3311 3312 /* check number of arguments */ 3313 if (argc < 2) { 3314 (void) fprintf(stderr, gettext("missing clone filesystem" 3315 " argument\n")); 3316 usage(B_FALSE); 3317 } 3318 if (argc > 2) { 3319 (void) fprintf(stderr, gettext("too many arguments\n")); 3320 usage(B_FALSE); 3321 } 3322 3323 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3324 if (zhp == NULL) 3325 return (1); 3326 3327 ret = (zfs_promote(zhp) != 0); 3328 3329 3330 zfs_close(zhp); 3331 return (ret); 3332} 3333 3334/* 3335 * zfs rollback [-rRf] <snapshot> 3336 * 3337 * -r Delete any intervening snapshots before doing rollback 3338 * -R Delete any snapshots and their clones 3339 * -f ignored for backwards compatability 3340 * 3341 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3342 * since then and making it the active dataset. If more recent snapshots exist, 3343 * the command will complain unless the '-r' flag is given. 3344 */ 3345typedef struct rollback_cbdata { 3346 uint64_t cb_create; 3347 boolean_t cb_first; 3348 int cb_doclones; 3349 char *cb_target; 3350 int cb_error; 3351 boolean_t cb_recurse; 3352} rollback_cbdata_t; 3353 3354static int 3355rollback_check_dependent(zfs_handle_t *zhp, void *data) 3356{ 3357 rollback_cbdata_t *cbp = data; 3358 3359 if (cbp->cb_first && cbp->cb_recurse) { 3360 (void) fprintf(stderr, gettext("cannot rollback to " 3361 "'%s': clones of previous snapshots exist\n"), 3362 cbp->cb_target); 3363 (void) fprintf(stderr, gettext("use '-R' to " 3364 "force deletion of the following clones and " 3365 "dependents:\n")); 3366 cbp->cb_first = 0; 3367 cbp->cb_error = 1; 3368 } 3369 3370 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3371 3372 zfs_close(zhp); 3373 return (0); 3374} 3375 3376/* 3377 * Report any snapshots more recent than the one specified. Used when '-r' is 3378 * not specified. We reuse this same callback for the snapshot dependents - if 3379 * 'cb_dependent' is set, then this is a dependent and we should report it 3380 * without checking the transaction group. 3381 */ 3382static int 3383rollback_check(zfs_handle_t *zhp, void *data) 3384{ 3385 rollback_cbdata_t *cbp = data; 3386 3387 if (cbp->cb_doclones) { 3388 zfs_close(zhp); 3389 return (0); 3390 } 3391 3392 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3393 if (cbp->cb_first && !cbp->cb_recurse) { 3394 (void) fprintf(stderr, gettext("cannot " 3395 "rollback to '%s': more recent snapshots " 3396 "or bookmarks exist\n"), 3397 cbp->cb_target); 3398 (void) fprintf(stderr, gettext("use '-r' to " 3399 "force deletion of the following " 3400 "snapshots and bookmarks:\n")); 3401 cbp->cb_first = 0; 3402 cbp->cb_error = 1; 3403 } 3404 3405 if (cbp->cb_recurse) { 3406 if (zfs_iter_dependents(zhp, B_TRUE, 3407 rollback_check_dependent, cbp) != 0) { 3408 zfs_close(zhp); 3409 return (-1); 3410 } 3411 } else { 3412 (void) fprintf(stderr, "%s\n", 3413 zfs_get_name(zhp)); 3414 } 3415 } 3416 zfs_close(zhp); 3417 return (0); 3418} 3419 3420static int 3421zfs_do_rollback(int argc, char **argv) 3422{ 3423 int ret = 0; 3424 int c; 3425 boolean_t force = B_FALSE; 3426 rollback_cbdata_t cb = { 0 }; 3427 zfs_handle_t *zhp, *snap; 3428 char parentname[ZFS_MAXNAMELEN]; 3429 char *delim; 3430 3431 /* check options */ 3432 while ((c = getopt(argc, argv, "rRf")) != -1) { 3433 switch (c) { 3434 case 'r': 3435 cb.cb_recurse = 1; 3436 break; 3437 case 'R': 3438 cb.cb_recurse = 1; 3439 cb.cb_doclones = 1; 3440 break; 3441 case 'f': 3442 force = B_TRUE; 3443 break; 3444 case '?': 3445 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3446 optopt); 3447 usage(B_FALSE); 3448 } 3449 } 3450 3451 argc -= optind; 3452 argv += optind; 3453 3454 /* check number of arguments */ 3455 if (argc < 1) { 3456 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3457 usage(B_FALSE); 3458 } 3459 if (argc > 1) { 3460 (void) fprintf(stderr, gettext("too many arguments\n")); 3461 usage(B_FALSE); 3462 } 3463 3464 /* open the snapshot */ 3465 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3466 return (1); 3467 3468 /* open the parent dataset */ 3469 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3470 verify((delim = strrchr(parentname, '@')) != NULL); 3471 *delim = '\0'; 3472 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3473 zfs_close(snap); 3474 return (1); 3475 } 3476 3477 /* 3478 * Check for more recent snapshots and/or clones based on the presence 3479 * of '-r' and '-R'. 3480 */ 3481 cb.cb_target = argv[0]; 3482 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3483 cb.cb_first = B_TRUE; 3484 cb.cb_error = 0; 3485 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3486 goto out; 3487 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3488 goto out; 3489 3490 if ((ret = cb.cb_error) != 0) 3491 goto out; 3492 3493 /* 3494 * Rollback parent to the given snapshot. 3495 */ 3496 ret = zfs_rollback(zhp, snap, force); 3497 3498out: 3499 zfs_close(snap); 3500 zfs_close(zhp); 3501 3502 if (ret == 0) 3503 return (0); 3504 else 3505 return (1); 3506} 3507 3508/* 3509 * zfs set property=value { fs | snap | vol } ... 3510 * 3511 * Sets the given property for all datasets specified on the command line. 3512 */ 3513typedef struct set_cbdata { 3514 char *cb_propname; 3515 char *cb_value; 3516} set_cbdata_t; 3517 3518static int 3519set_callback(zfs_handle_t *zhp, void *data) 3520{ 3521 set_cbdata_t *cbp = data; 3522 3523 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3524 switch (libzfs_errno(g_zfs)) { 3525 case EZFS_MOUNTFAILED: 3526 (void) fprintf(stderr, gettext("property may be set " 3527 "but unable to remount filesystem\n")); 3528 break; 3529 case EZFS_SHARENFSFAILED: 3530 (void) fprintf(stderr, gettext("property may be set " 3531 "but unable to reshare filesystem\n")); 3532 break; 3533 } 3534 return (1); 3535 } 3536 return (0); 3537} 3538 3539static int 3540zfs_do_set(int argc, char **argv) 3541{ 3542 set_cbdata_t cb; 3543 int ret = 0; 3544 3545 /* check for options */ 3546 if (argc > 1 && argv[1][0] == '-') { 3547 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3548 argv[1][1]); 3549 usage(B_FALSE); 3550 } 3551 3552 /* check number of arguments */ 3553 if (argc < 2) { 3554 (void) fprintf(stderr, gettext("missing property=value " 3555 "argument\n")); 3556 usage(B_FALSE); 3557 } 3558 if (argc < 3) { 3559 (void) fprintf(stderr, gettext("missing dataset name\n")); 3560 usage(B_FALSE); 3561 } 3562 3563 /* validate property=value argument */ 3564 cb.cb_propname = argv[1]; 3565 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3566 (cb.cb_value[1] == '\0')) { 3567 (void) fprintf(stderr, gettext("missing value in " 3568 "property=value argument\n")); 3569 usage(B_FALSE); 3570 } 3571 3572 *cb.cb_value = '\0'; 3573 cb.cb_value++; 3574 3575 if (*cb.cb_propname == '\0') { 3576 (void) fprintf(stderr, 3577 gettext("missing property in property=value argument\n")); 3578 usage(B_FALSE); 3579 } 3580 3581 ret = zfs_for_each(argc - 2, argv + 2, 0, 3582 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3583 3584 return (ret); 3585} 3586 3587typedef struct snap_cbdata { 3588 nvlist_t *sd_nvl; 3589 boolean_t sd_recursive; 3590 const char *sd_snapname; 3591} snap_cbdata_t; 3592 3593static int 3594zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3595{ 3596 snap_cbdata_t *sd = arg; 3597 char *name; 3598 int rv = 0; 3599 int error; 3600 3601 if (sd->sd_recursive && 3602 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3603 zfs_close(zhp); 3604 return (0); 3605 } 3606 3607 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3608 if (error == -1) 3609 nomem(); 3610 fnvlist_add_boolean(sd->sd_nvl, name); 3611 free(name); 3612 3613 if (sd->sd_recursive) 3614 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3615 zfs_close(zhp); 3616 return (rv); 3617} 3618 3619/* 3620 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3621 * 3622 * Creates a snapshot with the given name. While functionally equivalent to 3623 * 'zfs create', it is a separate command to differentiate intent. 3624 */ 3625static int 3626zfs_do_snapshot(int argc, char **argv) 3627{ 3628 int ret = 0; 3629 int c; 3630 nvlist_t *props; 3631 snap_cbdata_t sd = { 0 }; 3632 boolean_t multiple_snaps = B_FALSE; 3633 3634 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3635 nomem(); 3636 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3637 nomem(); 3638 3639 /* check options */ 3640 while ((c = getopt(argc, argv, "ro:")) != -1) { 3641 switch (c) { 3642 case 'o': 3643 if (parseprop(props, optarg)) 3644 return (1); 3645 break; 3646 case 'r': 3647 sd.sd_recursive = B_TRUE; 3648 multiple_snaps = B_TRUE; 3649 break; 3650 case '?': 3651 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3652 optopt); 3653 goto usage; 3654 } 3655 } 3656 3657 argc -= optind; 3658 argv += optind; 3659 3660 /* check number of arguments */ 3661 if (argc < 1) { 3662 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3663 goto usage; 3664 } 3665 3666 if (argc > 1) 3667 multiple_snaps = B_TRUE; 3668 for (; argc > 0; argc--, argv++) { 3669 char *atp; 3670 zfs_handle_t *zhp; 3671 3672 atp = strchr(argv[0], '@'); 3673 if (atp == NULL) 3674 goto usage; 3675 *atp = '\0'; 3676 sd.sd_snapname = atp + 1; 3677 zhp = zfs_open(g_zfs, argv[0], 3678 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3679 if (zhp == NULL) 3680 goto usage; 3681 if (zfs_snapshot_cb(zhp, &sd) != 0) 3682 goto usage; 3683 } 3684 3685 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3686 nvlist_free(sd.sd_nvl); 3687 nvlist_free(props); 3688 if (ret != 0 && multiple_snaps) 3689 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3690 return (ret != 0); 3691 3692usage: 3693 nvlist_free(sd.sd_nvl); 3694 nvlist_free(props); 3695 usage(B_FALSE); 3696 return (-1); 3697} 3698 3699/* 3700 * Send a backup stream to stdout. 3701 */ 3702static int 3703zfs_do_send(int argc, char **argv) 3704{ 3705 char *fromname = NULL; 3706 char *toname = NULL; 3707 char *cp; 3708 zfs_handle_t *zhp; 3709 sendflags_t flags = { 0 }; 3710 int c, err; 3711 nvlist_t *dbgnv = NULL; 3712 boolean_t extraverbose = B_FALSE; 3713 3714 /* check options */ 3715 while ((c = getopt(argc, argv, ":i:I:RDpvnPLe")) != -1) { 3716 switch (c) { 3717 case 'i': 3718 if (fromname) 3719 usage(B_FALSE); 3720 fromname = optarg; 3721 break; 3722 case 'I': 3723 if (fromname) 3724 usage(B_FALSE); 3725 fromname = optarg; 3726 flags.doall = B_TRUE; 3727 break; 3728 case 'R': 3729 flags.replicate = B_TRUE; 3730 break; 3731 case 'p': 3732 flags.props = B_TRUE; 3733 break; 3734 case 'P': 3735 flags.parsable = B_TRUE; 3736 flags.verbose = B_TRUE; 3737 break; 3738 case 'v': 3739 if (flags.verbose) 3740 extraverbose = B_TRUE; 3741 flags.verbose = B_TRUE; 3742 flags.progress = B_TRUE; 3743 break; 3744 case 'D': 3745 flags.dedup = B_TRUE; 3746 break; 3747 case 'n': 3748 flags.dryrun = B_TRUE; 3749 break; 3750 case 'L': 3751 flags.largeblock = B_TRUE; 3752 break; 3753 case 'e': 3754 flags.embed_data = B_TRUE; 3755 break; 3756 case ':': 3757 (void) fprintf(stderr, gettext("missing argument for " 3758 "'%c' option\n"), optopt); 3759 usage(B_FALSE); 3760 break; 3761 case '?': 3762 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3763 optopt); 3764 usage(B_FALSE); 3765 } 3766 } 3767 3768 argc -= optind; 3769 argv += optind; 3770 3771 /* check number of arguments */ 3772 if (argc < 1) { 3773 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3774 usage(B_FALSE); 3775 } 3776 if (argc > 1) { 3777 (void) fprintf(stderr, gettext("too many arguments\n")); 3778 usage(B_FALSE); 3779 } 3780 3781 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3782 (void) fprintf(stderr, 3783 gettext("Error: Stream can not be written to a terminal.\n" 3784 "You must redirect standard output.\n")); 3785 return (1); 3786 } 3787 3788 /* 3789 * Special case sending a filesystem, or from a bookmark. 3790 */ 3791 if (strchr(argv[0], '@') == NULL || 3792 (fromname && strchr(fromname, '#') != NULL)) { 3793 char frombuf[ZFS_MAXNAMELEN]; 3794 enum lzc_send_flags lzc_flags = 0; 3795 3796 if (flags.replicate || flags.doall || flags.props || 3797 flags.dedup || flags.dryrun || flags.verbose || 3798 flags.progress) { 3799 (void) fprintf(stderr, 3800 gettext("Error: " 3801 "Unsupported flag with filesystem or bookmark.\n")); 3802 return (1); 3803 } 3804 3805 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3806 if (zhp == NULL) 3807 return (1); 3808 3809 if (flags.largeblock) 3810 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3811 if (flags.embed_data) 3812 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3813 3814 if (fromname != NULL && 3815 (fromname[0] == '#' || fromname[0] == '@')) { 3816 /* 3817 * Incremental source name begins with # or @. 3818 * Default to same fs as target. 3819 */ 3820 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3821 cp = strchr(frombuf, '@'); 3822 if (cp != NULL) 3823 *cp = '\0'; 3824 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3825 fromname = frombuf; 3826 } 3827 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3828 zfs_close(zhp); 3829 return (err != 0); 3830 } 3831 3832 cp = strchr(argv[0], '@'); 3833 *cp = '\0'; 3834 toname = cp + 1; 3835 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3836 if (zhp == NULL) 3837 return (1); 3838 3839 /* 3840 * If they specified the full path to the snapshot, chop off 3841 * everything except the short name of the snapshot, but special 3842 * case if they specify the origin. 3843 */ 3844 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3845 char origin[ZFS_MAXNAMELEN]; 3846 zprop_source_t src; 3847 3848 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3849 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3850 3851 if (strcmp(origin, fromname) == 0) { 3852 fromname = NULL; 3853 flags.fromorigin = B_TRUE; 3854 } else { 3855 *cp = '\0'; 3856 if (cp != fromname && strcmp(argv[0], fromname)) { 3857 (void) fprintf(stderr, 3858 gettext("incremental source must be " 3859 "in same filesystem\n")); 3860 usage(B_FALSE); 3861 } 3862 fromname = cp + 1; 3863 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3864 (void) fprintf(stderr, 3865 gettext("invalid incremental source\n")); 3866 usage(B_FALSE); 3867 } 3868 } 3869 } 3870 3871 if (flags.replicate && fromname == NULL) 3872 flags.doall = B_TRUE; 3873 3874 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3875 extraverbose ? &dbgnv : NULL); 3876 3877 if (extraverbose && dbgnv != NULL) { 3878 /* 3879 * dump_nvlist prints to stdout, but that's been 3880 * redirected to a file. Make it print to stderr 3881 * instead. 3882 */ 3883 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3884 dump_nvlist(dbgnv, 0); 3885 nvlist_free(dbgnv); 3886 } 3887 zfs_close(zhp); 3888 3889 return (err != 0); 3890} 3891 3892/* 3893 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3894 * 3895 * Restore a backup stream from stdin. 3896 */ 3897static int 3898zfs_do_receive(int argc, char **argv) 3899{ 3900 int c, err; 3901 recvflags_t flags = { 0 }; 3902 3903 /* check options */ 3904 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3905 switch (c) { 3906 case 'd': 3907 flags.isprefix = B_TRUE; 3908 break; 3909 case 'e': 3910 flags.isprefix = B_TRUE; 3911 flags.istail = B_TRUE; 3912 break; 3913 case 'n': 3914 flags.dryrun = B_TRUE; 3915 break; 3916 case 'u': 3917 flags.nomount = B_TRUE; 3918 break; 3919 case 'v': 3920 flags.verbose = B_TRUE; 3921 break; 3922 case 'F': 3923 flags.force = B_TRUE; 3924 break; 3925 case ':': 3926 (void) fprintf(stderr, gettext("missing argument for " 3927 "'%c' option\n"), optopt); 3928 usage(B_FALSE); 3929 break; 3930 case '?': 3931 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3932 optopt); 3933 usage(B_FALSE); 3934 } 3935 } 3936 3937 argc -= optind; 3938 argv += optind; 3939 3940 /* check number of arguments */ 3941 if (argc < 1) { 3942 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3943 usage(B_FALSE); 3944 } 3945 if (argc > 1) { 3946 (void) fprintf(stderr, gettext("too many arguments\n")); 3947 usage(B_FALSE); 3948 } 3949 3950 if (isatty(STDIN_FILENO)) { 3951 (void) fprintf(stderr, 3952 gettext("Error: Backup stream can not be read " 3953 "from a terminal.\n" 3954 "You must redirect standard input.\n")); 3955 return (1); 3956 } 3957 3958 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3959 3960 return (err != 0); 3961} 3962 3963/* 3964 * allow/unallow stuff 3965 */ 3966/* copied from zfs/sys/dsl_deleg.h */ 3967#define ZFS_DELEG_PERM_CREATE "create" 3968#define ZFS_DELEG_PERM_DESTROY "destroy" 3969#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3970#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3971#define ZFS_DELEG_PERM_CLONE "clone" 3972#define ZFS_DELEG_PERM_PROMOTE "promote" 3973#define ZFS_DELEG_PERM_RENAME "rename" 3974#define ZFS_DELEG_PERM_MOUNT "mount" 3975#define ZFS_DELEG_PERM_SHARE "share" 3976#define ZFS_DELEG_PERM_SEND "send" 3977#define ZFS_DELEG_PERM_RECEIVE "receive" 3978#define ZFS_DELEG_PERM_ALLOW "allow" 3979#define ZFS_DELEG_PERM_USERPROP "userprop" 3980#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3981#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3982#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3983#define ZFS_DELEG_PERM_USERUSED "userused" 3984#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3985#define ZFS_DELEG_PERM_HOLD "hold" 3986#define ZFS_DELEG_PERM_RELEASE "release" 3987#define ZFS_DELEG_PERM_DIFF "diff" 3988#define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3989 3990#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3991 3992static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3993 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3994 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3995 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3996 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3997 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3998 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3999 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4000 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4001 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4002 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4003 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4004 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4005 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4006 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4007 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4008 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4009 4010 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4011 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4012 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4013 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4014 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4015 { NULL, ZFS_DELEG_NOTE_NONE } 4016}; 4017 4018/* permission structure */ 4019typedef struct deleg_perm { 4020 zfs_deleg_who_type_t dp_who_type; 4021 const char *dp_name; 4022 boolean_t dp_local; 4023 boolean_t dp_descend; 4024} deleg_perm_t; 4025 4026/* */ 4027typedef struct deleg_perm_node { 4028 deleg_perm_t dpn_perm; 4029 4030 uu_avl_node_t dpn_avl_node; 4031} deleg_perm_node_t; 4032 4033typedef struct fs_perm fs_perm_t; 4034 4035/* permissions set */ 4036typedef struct who_perm { 4037 zfs_deleg_who_type_t who_type; 4038 const char *who_name; /* id */ 4039 char who_ug_name[256]; /* user/group name */ 4040 fs_perm_t *who_fsperm; /* uplink */ 4041 4042 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4043} who_perm_t; 4044 4045/* */ 4046typedef struct who_perm_node { 4047 who_perm_t who_perm; 4048 uu_avl_node_t who_avl_node; 4049} who_perm_node_t; 4050 4051typedef struct fs_perm_set fs_perm_set_t; 4052/* fs permissions */ 4053struct fs_perm { 4054 const char *fsp_name; 4055 4056 uu_avl_t *fsp_sc_avl; /* sets,create */ 4057 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4058 4059 fs_perm_set_t *fsp_set; /* uplink */ 4060}; 4061 4062/* */ 4063typedef struct fs_perm_node { 4064 fs_perm_t fspn_fsperm; 4065 uu_avl_t *fspn_avl; 4066 4067 uu_list_node_t fspn_list_node; 4068} fs_perm_node_t; 4069 4070/* top level structure */ 4071struct fs_perm_set { 4072 uu_list_pool_t *fsps_list_pool; 4073 uu_list_t *fsps_list; /* list of fs_perms */ 4074 4075 uu_avl_pool_t *fsps_named_set_avl_pool; 4076 uu_avl_pool_t *fsps_who_perm_avl_pool; 4077 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4078}; 4079 4080static inline const char * 4081deleg_perm_type(zfs_deleg_note_t note) 4082{ 4083 /* subcommands */ 4084 switch (note) { 4085 /* SUBCOMMANDS */ 4086 /* OTHER */ 4087 case ZFS_DELEG_NOTE_GROUPQUOTA: 4088 case ZFS_DELEG_NOTE_GROUPUSED: 4089 case ZFS_DELEG_NOTE_USERPROP: 4090 case ZFS_DELEG_NOTE_USERQUOTA: 4091 case ZFS_DELEG_NOTE_USERUSED: 4092 /* other */ 4093 return (gettext("other")); 4094 default: 4095 return (gettext("subcommand")); 4096 } 4097} 4098 4099static int inline 4100who_type2weight(zfs_deleg_who_type_t who_type) 4101{ 4102 int res; 4103 switch (who_type) { 4104 case ZFS_DELEG_NAMED_SET_SETS: 4105 case ZFS_DELEG_NAMED_SET: 4106 res = 0; 4107 break; 4108 case ZFS_DELEG_CREATE_SETS: 4109 case ZFS_DELEG_CREATE: 4110 res = 1; 4111 break; 4112 case ZFS_DELEG_USER_SETS: 4113 case ZFS_DELEG_USER: 4114 res = 2; 4115 break; 4116 case ZFS_DELEG_GROUP_SETS: 4117 case ZFS_DELEG_GROUP: 4118 res = 3; 4119 break; 4120 case ZFS_DELEG_EVERYONE_SETS: 4121 case ZFS_DELEG_EVERYONE: 4122 res = 4; 4123 break; 4124 default: 4125 res = -1; 4126 } 4127 4128 return (res); 4129} 4130 4131/* ARGSUSED */ 4132static int 4133who_perm_compare(const void *larg, const void *rarg, void *unused) 4134{ 4135 const who_perm_node_t *l = larg; 4136 const who_perm_node_t *r = rarg; 4137 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4138 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4139 int lweight = who_type2weight(ltype); 4140 int rweight = who_type2weight(rtype); 4141 int res = lweight - rweight; 4142 if (res == 0) 4143 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4144 ZFS_MAX_DELEG_NAME-1); 4145 4146 if (res == 0) 4147 return (0); 4148 if (res > 0) 4149 return (1); 4150 else 4151 return (-1); 4152} 4153 4154/* ARGSUSED */ 4155static int 4156deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4157{ 4158 const deleg_perm_node_t *l = larg; 4159 const deleg_perm_node_t *r = rarg; 4160 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4161 ZFS_MAX_DELEG_NAME-1); 4162 4163 if (res == 0) 4164 return (0); 4165 4166 if (res > 0) 4167 return (1); 4168 else 4169 return (-1); 4170} 4171 4172static inline void 4173fs_perm_set_init(fs_perm_set_t *fspset) 4174{ 4175 bzero(fspset, sizeof (fs_perm_set_t)); 4176 4177 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4178 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4179 NULL, UU_DEFAULT)) == NULL) 4180 nomem(); 4181 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4182 UU_DEFAULT)) == NULL) 4183 nomem(); 4184 4185 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4186 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4187 who_perm_node_t, who_avl_node), who_perm_compare, 4188 UU_DEFAULT)) == NULL) 4189 nomem(); 4190 4191 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4192 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4193 who_perm_node_t, who_avl_node), who_perm_compare, 4194 UU_DEFAULT)) == NULL) 4195 nomem(); 4196 4197 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4198 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4199 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4200 == NULL) 4201 nomem(); 4202} 4203 4204static inline void fs_perm_fini(fs_perm_t *); 4205static inline void who_perm_fini(who_perm_t *); 4206 4207static inline void 4208fs_perm_set_fini(fs_perm_set_t *fspset) 4209{ 4210 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4211 4212 while (node != NULL) { 4213 fs_perm_node_t *next_node = 4214 uu_list_next(fspset->fsps_list, node); 4215 fs_perm_t *fsperm = &node->fspn_fsperm; 4216 fs_perm_fini(fsperm); 4217 uu_list_remove(fspset->fsps_list, node); 4218 free(node); 4219 node = next_node; 4220 } 4221 4222 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4223 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4224 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4225} 4226 4227static inline void 4228deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4229 const char *name) 4230{ 4231 deleg_perm->dp_who_type = type; 4232 deleg_perm->dp_name = name; 4233} 4234 4235static inline void 4236who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4237 zfs_deleg_who_type_t type, const char *name) 4238{ 4239 uu_avl_pool_t *pool; 4240 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4241 4242 bzero(who_perm, sizeof (who_perm_t)); 4243 4244 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4245 UU_DEFAULT)) == NULL) 4246 nomem(); 4247 4248 who_perm->who_type = type; 4249 who_perm->who_name = name; 4250 who_perm->who_fsperm = fsperm; 4251} 4252 4253static inline void 4254who_perm_fini(who_perm_t *who_perm) 4255{ 4256 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4257 4258 while (node != NULL) { 4259 deleg_perm_node_t *next_node = 4260 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4261 4262 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4263 free(node); 4264 node = next_node; 4265 } 4266 4267 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4268} 4269 4270static inline void 4271fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4272{ 4273 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4274 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4275 4276 bzero(fsperm, sizeof (fs_perm_t)); 4277 4278 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4279 == NULL) 4280 nomem(); 4281 4282 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4283 == NULL) 4284 nomem(); 4285 4286 fsperm->fsp_set = fspset; 4287 fsperm->fsp_name = fsname; 4288} 4289 4290static inline void 4291fs_perm_fini(fs_perm_t *fsperm) 4292{ 4293 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4294 while (node != NULL) { 4295 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4296 node); 4297 who_perm_t *who_perm = &node->who_perm; 4298 who_perm_fini(who_perm); 4299 uu_avl_remove(fsperm->fsp_sc_avl, node); 4300 free(node); 4301 node = next_node; 4302 } 4303 4304 node = uu_avl_first(fsperm->fsp_uge_avl); 4305 while (node != NULL) { 4306 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4307 node); 4308 who_perm_t *who_perm = &node->who_perm; 4309 who_perm_fini(who_perm); 4310 uu_avl_remove(fsperm->fsp_uge_avl, node); 4311 free(node); 4312 node = next_node; 4313 } 4314 4315 uu_avl_destroy(fsperm->fsp_sc_avl); 4316 uu_avl_destroy(fsperm->fsp_uge_avl); 4317} 4318 4319static void inline 4320set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4321 zfs_deleg_who_type_t who_type, const char *name, char locality) 4322{ 4323 uu_avl_index_t idx = 0; 4324 4325 deleg_perm_node_t *found_node = NULL; 4326 deleg_perm_t *deleg_perm = &node->dpn_perm; 4327 4328 deleg_perm_init(deleg_perm, who_type, name); 4329 4330 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4331 == NULL) 4332 uu_avl_insert(avl, node, idx); 4333 else { 4334 node = found_node; 4335 deleg_perm = &node->dpn_perm; 4336 } 4337 4338 4339 switch (locality) { 4340 case ZFS_DELEG_LOCAL: 4341 deleg_perm->dp_local = B_TRUE; 4342 break; 4343 case ZFS_DELEG_DESCENDENT: 4344 deleg_perm->dp_descend = B_TRUE; 4345 break; 4346 case ZFS_DELEG_NA: 4347 break; 4348 default: 4349 assert(B_FALSE); /* invalid locality */ 4350 } 4351} 4352 4353static inline int 4354parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4355{ 4356 nvpair_t *nvp = NULL; 4357 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4358 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4359 zfs_deleg_who_type_t who_type = who_perm->who_type; 4360 4361 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4362 const char *name = nvpair_name(nvp); 4363 data_type_t type = nvpair_type(nvp); 4364 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4365 deleg_perm_node_t *node = 4366 safe_malloc(sizeof (deleg_perm_node_t)); 4367 4368 assert(type == DATA_TYPE_BOOLEAN); 4369 4370 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4371 set_deleg_perm_node(avl, node, who_type, name, locality); 4372 } 4373 4374 return (0); 4375} 4376 4377static inline int 4378parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4379{ 4380 nvpair_t *nvp = NULL; 4381 fs_perm_set_t *fspset = fsperm->fsp_set; 4382 4383 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4384 nvlist_t *nvl2 = NULL; 4385 const char *name = nvpair_name(nvp); 4386 uu_avl_t *avl = NULL; 4387 uu_avl_pool_t *avl_pool; 4388 zfs_deleg_who_type_t perm_type = name[0]; 4389 char perm_locality = name[1]; 4390 const char *perm_name = name + 3; 4391 boolean_t is_set = B_TRUE; 4392 who_perm_t *who_perm = NULL; 4393 4394 assert('$' == name[2]); 4395 4396 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4397 return (-1); 4398 4399 switch (perm_type) { 4400 case ZFS_DELEG_CREATE: 4401 case ZFS_DELEG_CREATE_SETS: 4402 case ZFS_DELEG_NAMED_SET: 4403 case ZFS_DELEG_NAMED_SET_SETS: 4404 avl_pool = fspset->fsps_named_set_avl_pool; 4405 avl = fsperm->fsp_sc_avl; 4406 break; 4407 case ZFS_DELEG_USER: 4408 case ZFS_DELEG_USER_SETS: 4409 case ZFS_DELEG_GROUP: 4410 case ZFS_DELEG_GROUP_SETS: 4411 case ZFS_DELEG_EVERYONE: 4412 case ZFS_DELEG_EVERYONE_SETS: 4413 avl_pool = fspset->fsps_who_perm_avl_pool; 4414 avl = fsperm->fsp_uge_avl; 4415 break; 4416 } 4417 4418 if (is_set) { 4419 who_perm_node_t *found_node = NULL; 4420 who_perm_node_t *node = safe_malloc( 4421 sizeof (who_perm_node_t)); 4422 who_perm = &node->who_perm; 4423 uu_avl_index_t idx = 0; 4424 4425 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4426 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4427 4428 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4429 == NULL) { 4430 if (avl == fsperm->fsp_uge_avl) { 4431 uid_t rid = 0; 4432 struct passwd *p = NULL; 4433 struct group *g = NULL; 4434 const char *nice_name = NULL; 4435 4436 switch (perm_type) { 4437 case ZFS_DELEG_USER_SETS: 4438 case ZFS_DELEG_USER: 4439 rid = atoi(perm_name); 4440 p = getpwuid(rid); 4441 if (p) 4442 nice_name = p->pw_name; 4443 break; 4444 case ZFS_DELEG_GROUP_SETS: 4445 case ZFS_DELEG_GROUP: 4446 rid = atoi(perm_name); 4447 g = getgrgid(rid); 4448 if (g) 4449 nice_name = g->gr_name; 4450 break; 4451 } 4452 4453 if (nice_name != NULL) 4454 (void) strlcpy( 4455 node->who_perm.who_ug_name, 4456 nice_name, 256); 4457 } 4458 4459 uu_avl_insert(avl, node, idx); 4460 } else { 4461 node = found_node; 4462 who_perm = &node->who_perm; 4463 } 4464 } 4465 4466 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4467 } 4468 4469 return (0); 4470} 4471 4472static inline int 4473parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4474{ 4475 nvpair_t *nvp = NULL; 4476 uu_avl_index_t idx = 0; 4477 4478 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4479 nvlist_t *nvl2 = NULL; 4480 const char *fsname = nvpair_name(nvp); 4481 data_type_t type = nvpair_type(nvp); 4482 fs_perm_t *fsperm = NULL; 4483 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4484 if (node == NULL) 4485 nomem(); 4486 4487 fsperm = &node->fspn_fsperm; 4488 4489 assert(DATA_TYPE_NVLIST == type); 4490 4491 uu_list_node_init(node, &node->fspn_list_node, 4492 fspset->fsps_list_pool); 4493 4494 idx = uu_list_numnodes(fspset->fsps_list); 4495 fs_perm_init(fsperm, fspset, fsname); 4496 4497 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4498 return (-1); 4499 4500 (void) parse_fs_perm(fsperm, nvl2); 4501 4502 uu_list_insert(fspset->fsps_list, node, idx); 4503 } 4504 4505 return (0); 4506} 4507 4508static inline const char * 4509deleg_perm_comment(zfs_deleg_note_t note) 4510{ 4511 const char *str = ""; 4512 4513 /* subcommands */ 4514 switch (note) { 4515 /* SUBCOMMANDS */ 4516 case ZFS_DELEG_NOTE_ALLOW: 4517 str = gettext("Must also have the permission that is being" 4518 "\n\t\t\t\tallowed"); 4519 break; 4520 case ZFS_DELEG_NOTE_CLONE: 4521 str = gettext("Must also have the 'create' ability and 'mount'" 4522 "\n\t\t\t\tability in the origin file system"); 4523 break; 4524 case ZFS_DELEG_NOTE_CREATE: 4525 str = gettext("Must also have the 'mount' ability"); 4526 break; 4527 case ZFS_DELEG_NOTE_DESTROY: 4528 str = gettext("Must also have the 'mount' ability"); 4529 break; 4530 case ZFS_DELEG_NOTE_DIFF: 4531 str = gettext("Allows lookup of paths within a dataset;" 4532 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4533 "\n\t\t\t\tin order to use zfs diff"); 4534 break; 4535 case ZFS_DELEG_NOTE_HOLD: 4536 str = gettext("Allows adding a user hold to a snapshot"); 4537 break; 4538 case ZFS_DELEG_NOTE_MOUNT: 4539 str = gettext("Allows mount/umount of ZFS datasets"); 4540 break; 4541 case ZFS_DELEG_NOTE_PROMOTE: 4542 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4543 " 'promote' ability in the origin file system"); 4544 break; 4545 case ZFS_DELEG_NOTE_RECEIVE: 4546 str = gettext("Must also have the 'mount' and 'create'" 4547 " ability"); 4548 break; 4549 case ZFS_DELEG_NOTE_RELEASE: 4550 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4551 "might destroy the snapshot"); 4552 break; 4553 case ZFS_DELEG_NOTE_RENAME: 4554 str = gettext("Must also have the 'mount' and 'create'" 4555 "\n\t\t\t\tability in the new parent"); 4556 break; 4557 case ZFS_DELEG_NOTE_ROLLBACK: 4558 str = gettext(""); 4559 break; 4560 case ZFS_DELEG_NOTE_SEND: 4561 str = gettext(""); 4562 break; 4563 case ZFS_DELEG_NOTE_SHARE: 4564 str = gettext("Allows sharing file systems over NFS or SMB" 4565 "\n\t\t\t\tprotocols"); 4566 break; 4567 case ZFS_DELEG_NOTE_SNAPSHOT: 4568 str = gettext(""); 4569 break; 4570/* 4571 * case ZFS_DELEG_NOTE_VSCAN: 4572 * str = gettext(""); 4573 * break; 4574 */ 4575 /* OTHER */ 4576 case ZFS_DELEG_NOTE_GROUPQUOTA: 4577 str = gettext("Allows accessing any groupquota@... property"); 4578 break; 4579 case ZFS_DELEG_NOTE_GROUPUSED: 4580 str = gettext("Allows reading any groupused@... property"); 4581 break; 4582 case ZFS_DELEG_NOTE_USERPROP: 4583 str = gettext("Allows changing any user property"); 4584 break; 4585 case ZFS_DELEG_NOTE_USERQUOTA: 4586 str = gettext("Allows accessing any userquota@... property"); 4587 break; 4588 case ZFS_DELEG_NOTE_USERUSED: 4589 str = gettext("Allows reading any userused@... property"); 4590 break; 4591 /* other */ 4592 default: 4593 str = ""; 4594 } 4595 4596 return (str); 4597} 4598 4599struct allow_opts { 4600 boolean_t local; 4601 boolean_t descend; 4602 boolean_t user; 4603 boolean_t group; 4604 boolean_t everyone; 4605 boolean_t create; 4606 boolean_t set; 4607 boolean_t recursive; /* unallow only */ 4608 boolean_t prt_usage; 4609 4610 boolean_t prt_perms; 4611 char *who; 4612 char *perms; 4613 const char *dataset; 4614}; 4615 4616static inline int 4617prop_cmp(const void *a, const void *b) 4618{ 4619 const char *str1 = *(const char **)a; 4620 const char *str2 = *(const char **)b; 4621 return (strcmp(str1, str2)); 4622} 4623 4624static void 4625allow_usage(boolean_t un, boolean_t requested, const char *msg) 4626{ 4627 const char *opt_desc[] = { 4628 "-h", gettext("show this help message and exit"), 4629 "-l", gettext("set permission locally"), 4630 "-d", gettext("set permission for descents"), 4631 "-u", gettext("set permission for user"), 4632 "-g", gettext("set permission for group"), 4633 "-e", gettext("set permission for everyone"), 4634 "-c", gettext("set create time permission"), 4635 "-s", gettext("define permission set"), 4636 /* unallow only */ 4637 "-r", gettext("remove permissions recursively"), 4638 }; 4639 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4640 size_t allow_size = unallow_size - 2; 4641 const char *props[ZFS_NUM_PROPS]; 4642 int i; 4643 size_t count = 0; 4644 FILE *fp = requested ? stdout : stderr; 4645 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4646 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4647 4648 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4649 HELP_ALLOW)); 4650 (void) fprintf(fp, gettext("Options:\n")); 4651 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4652 const char *opt = opt_desc[i++]; 4653 const char *optdsc = opt_desc[i]; 4654 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4655 } 4656 4657 (void) fprintf(fp, gettext("\nThe following permissions are " 4658 "supported:\n\n")); 4659 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4660 gettext("NOTES")); 4661 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4662 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4663 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4664 const char *perm_type = deleg_perm_type(perm_note); 4665 const char *perm_comment = deleg_perm_comment(perm_note); 4666 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4667 } 4668 4669 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4670 zprop_desc_t *pd = &pdtbl[i]; 4671 if (pd->pd_visible != B_TRUE) 4672 continue; 4673 4674 if (pd->pd_attr == PROP_READONLY) 4675 continue; 4676 4677 props[count++] = pd->pd_name; 4678 } 4679 props[count] = NULL; 4680 4681 qsort(props, count, sizeof (char *), prop_cmp); 4682 4683 for (i = 0; i < count; i++) 4684 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4685 4686 if (msg != NULL) 4687 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4688 4689 exit(requested ? 0 : 2); 4690} 4691 4692static inline const char * 4693munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4694 char **permsp) 4695{ 4696 if (un && argc == expected_argc - 1) 4697 *permsp = NULL; 4698 else if (argc == expected_argc) 4699 *permsp = argv[argc - 2]; 4700 else 4701 allow_usage(un, B_FALSE, 4702 gettext("wrong number of parameters\n")); 4703 4704 return (argv[argc - 1]); 4705} 4706 4707static void 4708parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4709{ 4710 int uge_sum = opts->user + opts->group + opts->everyone; 4711 int csuge_sum = opts->create + opts->set + uge_sum; 4712 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4713 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4714 4715 if (uge_sum > 1) 4716 allow_usage(un, B_FALSE, 4717 gettext("-u, -g, and -e are mutually exclusive\n")); 4718 4719 if (opts->prt_usage) 4720 if (argc == 0 && all_sum == 0) 4721 allow_usage(un, B_TRUE, NULL); 4722 else 4723 usage(B_FALSE); 4724 4725 if (opts->set) { 4726 if (csuge_sum > 1) 4727 allow_usage(un, B_FALSE, 4728 gettext("invalid options combined with -s\n")); 4729 4730 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4731 if (argv[0][0] != '@') 4732 allow_usage(un, B_FALSE, 4733 gettext("invalid set name: missing '@' prefix\n")); 4734 opts->who = argv[0]; 4735 } else if (opts->create) { 4736 if (ldcsuge_sum > 1) 4737 allow_usage(un, B_FALSE, 4738 gettext("invalid options combined with -c\n")); 4739 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4740 } else if (opts->everyone) { 4741 if (csuge_sum > 1) 4742 allow_usage(un, B_FALSE, 4743 gettext("invalid options combined with -e\n")); 4744 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4745 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4746 == 0) { 4747 opts->everyone = B_TRUE; 4748 argc--; 4749 argv++; 4750 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4751 } else if (argc == 1 && !un) { 4752 opts->prt_perms = B_TRUE; 4753 opts->dataset = argv[argc-1]; 4754 } else { 4755 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4756 opts->who = argv[0]; 4757 } 4758 4759 if (!opts->local && !opts->descend) { 4760 opts->local = B_TRUE; 4761 opts->descend = B_TRUE; 4762 } 4763} 4764 4765static void 4766store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4767 const char *who, char *perms, nvlist_t *top_nvl) 4768{ 4769 int i; 4770 char ld[2] = { '\0', '\0' }; 4771 char who_buf[ZFS_MAXNAMELEN+32]; 4772 char base_type; 4773 char set_type; 4774 nvlist_t *base_nvl = NULL; 4775 nvlist_t *set_nvl = NULL; 4776 nvlist_t *nvl; 4777 4778 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4779 nomem(); 4780 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4781 nomem(); 4782 4783 switch (type) { 4784 case ZFS_DELEG_NAMED_SET_SETS: 4785 case ZFS_DELEG_NAMED_SET: 4786 set_type = ZFS_DELEG_NAMED_SET_SETS; 4787 base_type = ZFS_DELEG_NAMED_SET; 4788 ld[0] = ZFS_DELEG_NA; 4789 break; 4790 case ZFS_DELEG_CREATE_SETS: 4791 case ZFS_DELEG_CREATE: 4792 set_type = ZFS_DELEG_CREATE_SETS; 4793 base_type = ZFS_DELEG_CREATE; 4794 ld[0] = ZFS_DELEG_NA; 4795 break; 4796 case ZFS_DELEG_USER_SETS: 4797 case ZFS_DELEG_USER: 4798 set_type = ZFS_DELEG_USER_SETS; 4799 base_type = ZFS_DELEG_USER; 4800 if (local) 4801 ld[0] = ZFS_DELEG_LOCAL; 4802 if (descend) 4803 ld[1] = ZFS_DELEG_DESCENDENT; 4804 break; 4805 case ZFS_DELEG_GROUP_SETS: 4806 case ZFS_DELEG_GROUP: 4807 set_type = ZFS_DELEG_GROUP_SETS; 4808 base_type = ZFS_DELEG_GROUP; 4809 if (local) 4810 ld[0] = ZFS_DELEG_LOCAL; 4811 if (descend) 4812 ld[1] = ZFS_DELEG_DESCENDENT; 4813 break; 4814 case ZFS_DELEG_EVERYONE_SETS: 4815 case ZFS_DELEG_EVERYONE: 4816 set_type = ZFS_DELEG_EVERYONE_SETS; 4817 base_type = ZFS_DELEG_EVERYONE; 4818 if (local) 4819 ld[0] = ZFS_DELEG_LOCAL; 4820 if (descend) 4821 ld[1] = ZFS_DELEG_DESCENDENT; 4822 } 4823 4824 if (perms != NULL) { 4825 char *curr = perms; 4826 char *end = curr + strlen(perms); 4827 4828 while (curr < end) { 4829 char *delim = strchr(curr, ','); 4830 if (delim == NULL) 4831 delim = end; 4832 else 4833 *delim = '\0'; 4834 4835 if (curr[0] == '@') 4836 nvl = set_nvl; 4837 else 4838 nvl = base_nvl; 4839 4840 (void) nvlist_add_boolean(nvl, curr); 4841 if (delim != end) 4842 *delim = ','; 4843 curr = delim + 1; 4844 } 4845 4846 for (i = 0; i < 2; i++) { 4847 char locality = ld[i]; 4848 if (locality == 0) 4849 continue; 4850 4851 if (!nvlist_empty(base_nvl)) { 4852 if (who != NULL) 4853 (void) snprintf(who_buf, 4854 sizeof (who_buf), "%c%c$%s", 4855 base_type, locality, who); 4856 else 4857 (void) snprintf(who_buf, 4858 sizeof (who_buf), "%c%c$", 4859 base_type, locality); 4860 4861 (void) nvlist_add_nvlist(top_nvl, who_buf, 4862 base_nvl); 4863 } 4864 4865 4866 if (!nvlist_empty(set_nvl)) { 4867 if (who != NULL) 4868 (void) snprintf(who_buf, 4869 sizeof (who_buf), "%c%c$%s", 4870 set_type, locality, who); 4871 else 4872 (void) snprintf(who_buf, 4873 sizeof (who_buf), "%c%c$", 4874 set_type, locality); 4875 4876 (void) nvlist_add_nvlist(top_nvl, who_buf, 4877 set_nvl); 4878 } 4879 } 4880 } else { 4881 for (i = 0; i < 2; i++) { 4882 char locality = ld[i]; 4883 if (locality == 0) 4884 continue; 4885 4886 if (who != NULL) 4887 (void) snprintf(who_buf, sizeof (who_buf), 4888 "%c%c$%s", base_type, locality, who); 4889 else 4890 (void) snprintf(who_buf, sizeof (who_buf), 4891 "%c%c$", base_type, locality); 4892 (void) nvlist_add_boolean(top_nvl, who_buf); 4893 4894 if (who != NULL) 4895 (void) snprintf(who_buf, sizeof (who_buf), 4896 "%c%c$%s", set_type, locality, who); 4897 else 4898 (void) snprintf(who_buf, sizeof (who_buf), 4899 "%c%c$", set_type, locality); 4900 (void) nvlist_add_boolean(top_nvl, who_buf); 4901 } 4902 } 4903} 4904 4905static int 4906construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4907{ 4908 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4909 nomem(); 4910 4911 if (opts->set) { 4912 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4913 opts->descend, opts->who, opts->perms, *nvlp); 4914 } else if (opts->create) { 4915 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4916 opts->descend, NULL, opts->perms, *nvlp); 4917 } else if (opts->everyone) { 4918 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4919 opts->descend, NULL, opts->perms, *nvlp); 4920 } else { 4921 char *curr = opts->who; 4922 char *end = curr + strlen(curr); 4923 4924 while (curr < end) { 4925 const char *who; 4926 zfs_deleg_who_type_t who_type; 4927 char *endch; 4928 char *delim = strchr(curr, ','); 4929 char errbuf[256]; 4930 char id[64]; 4931 struct passwd *p = NULL; 4932 struct group *g = NULL; 4933 4934 uid_t rid; 4935 if (delim == NULL) 4936 delim = end; 4937 else 4938 *delim = '\0'; 4939 4940 rid = (uid_t)strtol(curr, &endch, 0); 4941 if (opts->user) { 4942 who_type = ZFS_DELEG_USER; 4943 if (*endch != '\0') 4944 p = getpwnam(curr); 4945 else 4946 p = getpwuid(rid); 4947 4948 if (p != NULL) 4949 rid = p->pw_uid; 4950 else { 4951 (void) snprintf(errbuf, 256, gettext( 4952 "invalid user %s"), curr); 4953 allow_usage(un, B_TRUE, errbuf); 4954 } 4955 } else if (opts->group) { 4956 who_type = ZFS_DELEG_GROUP; 4957 if (*endch != '\0') 4958 g = getgrnam(curr); 4959 else 4960 g = getgrgid(rid); 4961 4962 if (g != NULL) 4963 rid = g->gr_gid; 4964 else { 4965 (void) snprintf(errbuf, 256, gettext( 4966 "invalid group %s"), curr); 4967 allow_usage(un, B_TRUE, errbuf); 4968 } 4969 } else { 4970 if (*endch != '\0') { 4971 p = getpwnam(curr); 4972 } else { 4973 p = getpwuid(rid); 4974 } 4975 4976 if (p == NULL) 4977 if (*endch != '\0') { 4978 g = getgrnam(curr); 4979 } else { 4980 g = getgrgid(rid); 4981 } 4982 4983 if (p != NULL) { 4984 who_type = ZFS_DELEG_USER; 4985 rid = p->pw_uid; 4986 } else if (g != NULL) { 4987 who_type = ZFS_DELEG_GROUP; 4988 rid = g->gr_gid; 4989 } else { 4990 (void) snprintf(errbuf, 256, gettext( 4991 "invalid user/group %s"), curr); 4992 allow_usage(un, B_TRUE, errbuf); 4993 } 4994 } 4995 4996 (void) sprintf(id, "%u", rid); 4997 who = id; 4998 4999 store_allow_perm(who_type, opts->local, 5000 opts->descend, who, opts->perms, *nvlp); 5001 curr = delim + 1; 5002 } 5003 } 5004 5005 return (0); 5006} 5007 5008static void 5009print_set_creat_perms(uu_avl_t *who_avl) 5010{ 5011 const char *sc_title[] = { 5012 gettext("Permission sets:\n"), 5013 gettext("Create time permissions:\n"), 5014 NULL 5015 }; 5016 const char **title_ptr = sc_title; 5017 who_perm_node_t *who_node = NULL; 5018 int prev_weight = -1; 5019 5020 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5021 who_node = uu_avl_next(who_avl, who_node)) { 5022 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5023 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5024 const char *who_name = who_node->who_perm.who_name; 5025 int weight = who_type2weight(who_type); 5026 boolean_t first = B_TRUE; 5027 deleg_perm_node_t *deleg_node; 5028 5029 if (prev_weight != weight) { 5030 (void) printf(*title_ptr++); 5031 prev_weight = weight; 5032 } 5033 5034 if (who_name == NULL || strnlen(who_name, 1) == 0) 5035 (void) printf("\t"); 5036 else 5037 (void) printf("\t%s ", who_name); 5038 5039 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5040 deleg_node = uu_avl_next(avl, deleg_node)) { 5041 if (first) { 5042 (void) printf("%s", 5043 deleg_node->dpn_perm.dp_name); 5044 first = B_FALSE; 5045 } else 5046 (void) printf(",%s", 5047 deleg_node->dpn_perm.dp_name); 5048 } 5049 5050 (void) printf("\n"); 5051 } 5052} 5053 5054static void inline 5055print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5056 const char *title) 5057{ 5058 who_perm_node_t *who_node = NULL; 5059 boolean_t prt_title = B_TRUE; 5060 uu_avl_walk_t *walk; 5061 5062 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5063 nomem(); 5064 5065 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5066 const char *who_name = who_node->who_perm.who_name; 5067 const char *nice_who_name = who_node->who_perm.who_ug_name; 5068 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5069 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5070 char delim = ' '; 5071 deleg_perm_node_t *deleg_node; 5072 boolean_t prt_who = B_TRUE; 5073 5074 for (deleg_node = uu_avl_first(avl); 5075 deleg_node != NULL; 5076 deleg_node = uu_avl_next(avl, deleg_node)) { 5077 if (local != deleg_node->dpn_perm.dp_local || 5078 descend != deleg_node->dpn_perm.dp_descend) 5079 continue; 5080 5081 if (prt_who) { 5082 const char *who = NULL; 5083 if (prt_title) { 5084 prt_title = B_FALSE; 5085 (void) printf(title); 5086 } 5087 5088 switch (who_type) { 5089 case ZFS_DELEG_USER_SETS: 5090 case ZFS_DELEG_USER: 5091 who = gettext("user"); 5092 if (nice_who_name) 5093 who_name = nice_who_name; 5094 break; 5095 case ZFS_DELEG_GROUP_SETS: 5096 case ZFS_DELEG_GROUP: 5097 who = gettext("group"); 5098 if (nice_who_name) 5099 who_name = nice_who_name; 5100 break; 5101 case ZFS_DELEG_EVERYONE_SETS: 5102 case ZFS_DELEG_EVERYONE: 5103 who = gettext("everyone"); 5104 who_name = NULL; 5105 } 5106 5107 prt_who = B_FALSE; 5108 if (who_name == NULL) 5109 (void) printf("\t%s", who); 5110 else 5111 (void) printf("\t%s %s", who, who_name); 5112 } 5113 5114 (void) printf("%c%s", delim, 5115 deleg_node->dpn_perm.dp_name); 5116 delim = ','; 5117 } 5118 5119 if (!prt_who) 5120 (void) printf("\n"); 5121 } 5122 5123 uu_avl_walk_end(walk); 5124} 5125 5126static void 5127print_fs_perms(fs_perm_set_t *fspset) 5128{ 5129 fs_perm_node_t *node = NULL; 5130 char buf[ZFS_MAXNAMELEN+32]; 5131 const char *dsname = buf; 5132 5133 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5134 node = uu_list_next(fspset->fsps_list, node)) { 5135 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5136 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5137 int left = 0; 5138 5139 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5140 gettext("---- Permissions on %s "), 5141 node->fspn_fsperm.fsp_name); 5142 (void) printf(dsname); 5143 left = 70 - strlen(buf); 5144 while (left-- > 0) 5145 (void) printf("-"); 5146 (void) printf("\n"); 5147 5148 print_set_creat_perms(sc_avl); 5149 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5150 gettext("Local permissions:\n")); 5151 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5152 gettext("Descendent permissions:\n")); 5153 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5154 gettext("Local+Descendent permissions:\n")); 5155 } 5156} 5157 5158static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5159 5160struct deleg_perms { 5161 boolean_t un; 5162 nvlist_t *nvl; 5163}; 5164 5165static int 5166set_deleg_perms(zfs_handle_t *zhp, void *data) 5167{ 5168 struct deleg_perms *perms = (struct deleg_perms *)data; 5169 zfs_type_t zfs_type = zfs_get_type(zhp); 5170 5171 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5172 return (0); 5173 5174 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5175} 5176 5177static int 5178zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5179{ 5180 zfs_handle_t *zhp; 5181 nvlist_t *perm_nvl = NULL; 5182 nvlist_t *update_perm_nvl = NULL; 5183 int error = 1; 5184 int c; 5185 struct allow_opts opts = { 0 }; 5186 5187 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5188 5189 /* check opts */ 5190 while ((c = getopt(argc, argv, optstr)) != -1) { 5191 switch (c) { 5192 case 'l': 5193 opts.local = B_TRUE; 5194 break; 5195 case 'd': 5196 opts.descend = B_TRUE; 5197 break; 5198 case 'u': 5199 opts.user = B_TRUE; 5200 break; 5201 case 'g': 5202 opts.group = B_TRUE; 5203 break; 5204 case 'e': 5205 opts.everyone = B_TRUE; 5206 break; 5207 case 's': 5208 opts.set = B_TRUE; 5209 break; 5210 case 'c': 5211 opts.create = B_TRUE; 5212 break; 5213 case 'r': 5214 opts.recursive = B_TRUE; 5215 break; 5216 case ':': 5217 (void) fprintf(stderr, gettext("missing argument for " 5218 "'%c' option\n"), optopt); 5219 usage(B_FALSE); 5220 break; 5221 case 'h': 5222 opts.prt_usage = B_TRUE; 5223 break; 5224 case '?': 5225 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5226 optopt); 5227 usage(B_FALSE); 5228 } 5229 } 5230 5231 argc -= optind; 5232 argv += optind; 5233 5234 /* check arguments */ 5235 parse_allow_args(argc, argv, un, &opts); 5236 5237 /* try to open the dataset */ 5238 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5239 ZFS_TYPE_VOLUME)) == NULL) { 5240 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5241 opts.dataset); 5242 return (-1); 5243 } 5244 5245 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5246 goto cleanup2; 5247 5248 fs_perm_set_init(&fs_perm_set); 5249 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5250 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5251 goto cleanup1; 5252 } 5253 5254 if (opts.prt_perms) 5255 print_fs_perms(&fs_perm_set); 5256 else { 5257 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5258 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5259 goto cleanup0; 5260 5261 if (un && opts.recursive) { 5262 struct deleg_perms data = { un, update_perm_nvl }; 5263 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5264 &data) != 0) 5265 goto cleanup0; 5266 } 5267 } 5268 5269 error = 0; 5270 5271cleanup0: 5272 nvlist_free(perm_nvl); 5273 if (update_perm_nvl != NULL) 5274 nvlist_free(update_perm_nvl); 5275cleanup1: 5276 fs_perm_set_fini(&fs_perm_set); 5277cleanup2: 5278 zfs_close(zhp); 5279 5280 return (error); 5281} 5282 5283static int 5284zfs_do_allow(int argc, char **argv) 5285{ 5286 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5287} 5288 5289static int 5290zfs_do_unallow(int argc, char **argv) 5291{ 5292 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5293} 5294 5295static int 5296zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5297{ 5298 int errors = 0; 5299 int i; 5300 const char *tag; 5301 boolean_t recursive = B_FALSE; 5302 const char *opts = holding ? "rt" : "r"; 5303 int c; 5304 5305 /* check options */ 5306 while ((c = getopt(argc, argv, opts)) != -1) { 5307 switch (c) { 5308 case 'r': 5309 recursive = B_TRUE; 5310 break; 5311 case '?': 5312 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5313 optopt); 5314 usage(B_FALSE); 5315 } 5316 } 5317 5318 argc -= optind; 5319 argv += optind; 5320 5321 /* check number of arguments */ 5322 if (argc < 2) 5323 usage(B_FALSE); 5324 5325 tag = argv[0]; 5326 --argc; 5327 ++argv; 5328 5329 if (holding && tag[0] == '.') { 5330 /* tags starting with '.' are reserved for libzfs */ 5331 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5332 usage(B_FALSE); 5333 } 5334 5335 for (i = 0; i < argc; ++i) { 5336 zfs_handle_t *zhp; 5337 char parent[ZFS_MAXNAMELEN]; 5338 const char *delim; 5339 char *path = argv[i]; 5340 5341 delim = strchr(path, '@'); 5342 if (delim == NULL) { 5343 (void) fprintf(stderr, 5344 gettext("'%s' is not a snapshot\n"), path); 5345 ++errors; 5346 continue; 5347 } 5348 (void) strncpy(parent, path, delim - path); 5349 parent[delim - path] = '\0'; 5350 5351 zhp = zfs_open(g_zfs, parent, 5352 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5353 if (zhp == NULL) { 5354 ++errors; 5355 continue; 5356 } 5357 if (holding) { 5358 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5359 ++errors; 5360 } else { 5361 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5362 ++errors; 5363 } 5364 zfs_close(zhp); 5365 } 5366 5367 return (errors != 0); 5368} 5369 5370/* 5371 * zfs hold [-r] [-t] <tag> <snap> ... 5372 * 5373 * -r Recursively hold 5374 * 5375 * Apply a user-hold with the given tag to the list of snapshots. 5376 */ 5377static int 5378zfs_do_hold(int argc, char **argv) 5379{ 5380 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5381} 5382 5383/* 5384 * zfs release [-r] <tag> <snap> ... 5385 * 5386 * -r Recursively release 5387 * 5388 * Release a user-hold with the given tag from the list of snapshots. 5389 */ 5390static int 5391zfs_do_release(int argc, char **argv) 5392{ 5393 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5394} 5395 5396typedef struct holds_cbdata { 5397 boolean_t cb_recursive; 5398 const char *cb_snapname; 5399 nvlist_t **cb_nvlp; 5400 size_t cb_max_namelen; 5401 size_t cb_max_taglen; 5402} holds_cbdata_t; 5403 5404#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5405#define DATETIME_BUF_LEN (32) 5406/* 5407 * 5408 */ 5409static void 5410print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5411{ 5412 int i; 5413 nvpair_t *nvp = NULL; 5414 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5415 const char *col; 5416 5417 if (!scripted) { 5418 for (i = 0; i < 3; i++) { 5419 col = gettext(hdr_cols[i]); 5420 if (i < 2) 5421 (void) printf("%-*s ", i ? tagwidth : nwidth, 5422 col); 5423 else 5424 (void) printf("%s\n", col); 5425 } 5426 } 5427 5428 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5429 char *zname = nvpair_name(nvp); 5430 nvlist_t *nvl2; 5431 nvpair_t *nvp2 = NULL; 5432 (void) nvpair_value_nvlist(nvp, &nvl2); 5433 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5434 char tsbuf[DATETIME_BUF_LEN]; 5435 char *tagname = nvpair_name(nvp2); 5436 uint64_t val = 0; 5437 time_t time; 5438 struct tm t; 5439 char sep = scripted ? '\t' : ' '; 5440 size_t sepnum = scripted ? 1 : 2; 5441 5442 (void) nvpair_value_uint64(nvp2, &val); 5443 time = (time_t)val; 5444 (void) localtime_r(&time, &t); 5445 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5446 gettext(STRFTIME_FMT_STR), &t); 5447 5448 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5449 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5450 } 5451 } 5452} 5453 5454/* 5455 * Generic callback function to list a dataset or snapshot. 5456 */ 5457static int 5458holds_callback(zfs_handle_t *zhp, void *data) 5459{ 5460 holds_cbdata_t *cbp = data; 5461 nvlist_t *top_nvl = *cbp->cb_nvlp; 5462 nvlist_t *nvl = NULL; 5463 nvpair_t *nvp = NULL; 5464 const char *zname = zfs_get_name(zhp); 5465 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5466 5467 if (cbp->cb_recursive) { 5468 const char *snapname; 5469 char *delim = strchr(zname, '@'); 5470 if (delim == NULL) 5471 return (0); 5472 5473 snapname = delim + 1; 5474 if (strcmp(cbp->cb_snapname, snapname)) 5475 return (0); 5476 } 5477 5478 if (zfs_get_holds(zhp, &nvl) != 0) 5479 return (-1); 5480 5481 if (znamelen > cbp->cb_max_namelen) 5482 cbp->cb_max_namelen = znamelen; 5483 5484 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5485 const char *tag = nvpair_name(nvp); 5486 size_t taglen = strnlen(tag, MAXNAMELEN); 5487 if (taglen > cbp->cb_max_taglen) 5488 cbp->cb_max_taglen = taglen; 5489 } 5490 5491 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5492} 5493 5494/* 5495 * zfs holds [-r] <snap> ... 5496 * 5497 * -r Recursively hold 5498 */ 5499static int 5500zfs_do_holds(int argc, char **argv) 5501{ 5502 int errors = 0; 5503 int c; 5504 int i; 5505 boolean_t scripted = B_FALSE; 5506 boolean_t recursive = B_FALSE; 5507 const char *opts = "rH"; 5508 nvlist_t *nvl; 5509 5510 int types = ZFS_TYPE_SNAPSHOT; 5511 holds_cbdata_t cb = { 0 }; 5512 5513 int limit = 0; 5514 int ret = 0; 5515 int flags = 0; 5516 5517 /* check options */ 5518 while ((c = getopt(argc, argv, opts)) != -1) { 5519 switch (c) { 5520 case 'r': 5521 recursive = B_TRUE; 5522 break; 5523 case 'H': 5524 scripted = B_TRUE; 5525 break; 5526 case '?': 5527 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5528 optopt); 5529 usage(B_FALSE); 5530 } 5531 } 5532 5533 if (recursive) { 5534 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5535 flags |= ZFS_ITER_RECURSE; 5536 } 5537 5538 argc -= optind; 5539 argv += optind; 5540 5541 /* check number of arguments */ 5542 if (argc < 1) 5543 usage(B_FALSE); 5544 5545 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5546 nomem(); 5547 5548 for (i = 0; i < argc; ++i) { 5549 char *snapshot = argv[i]; 5550 const char *delim; 5551 const char *snapname; 5552 5553 delim = strchr(snapshot, '@'); 5554 if (delim == NULL) { 5555 (void) fprintf(stderr, 5556 gettext("'%s' is not a snapshot\n"), snapshot); 5557 ++errors; 5558 continue; 5559 } 5560 snapname = delim + 1; 5561 if (recursive) 5562 snapshot[delim - snapshot] = '\0'; 5563 5564 cb.cb_recursive = recursive; 5565 cb.cb_snapname = snapname; 5566 cb.cb_nvlp = &nvl; 5567 5568 /* 5569 * 1. collect holds data, set format options 5570 */ 5571 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5572 holds_callback, &cb); 5573 if (ret != 0) 5574 ++errors; 5575 } 5576 5577 /* 5578 * 2. print holds data 5579 */ 5580 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5581 5582 if (nvlist_empty(nvl)) 5583 (void) printf(gettext("no datasets available\n")); 5584 5585 nvlist_free(nvl); 5586 5587 return (0 != errors); 5588} 5589 5590#define CHECK_SPINNER 30 5591#define SPINNER_TIME 3 /* seconds */ 5592#define MOUNT_TIME 5 /* seconds */ 5593 5594static int 5595get_one_dataset(zfs_handle_t *zhp, void *data) 5596{ 5597 static char *spin[] = { "-", "\\", "|", "/" }; 5598 static int spinval = 0; 5599 static int spincheck = 0; 5600 static time_t last_spin_time = (time_t)0; 5601 get_all_cb_t *cbp = data; 5602 zfs_type_t type = zfs_get_type(zhp); 5603 5604 if (cbp->cb_verbose) { 5605 if (--spincheck < 0) { 5606 time_t now = time(NULL); 5607 if (last_spin_time + SPINNER_TIME < now) { 5608 update_progress(spin[spinval++ % 4]); 5609 last_spin_time = now; 5610 } 5611 spincheck = CHECK_SPINNER; 5612 } 5613 } 5614 5615 /* 5616 * Interate over any nested datasets. 5617 */ 5618 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5619 zfs_close(zhp); 5620 return (1); 5621 } 5622 5623 /* 5624 * Skip any datasets whose type does not match. 5625 */ 5626 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5627 zfs_close(zhp); 5628 return (0); 5629 } 5630 libzfs_add_handle(cbp, zhp); 5631 assert(cbp->cb_used <= cbp->cb_alloc); 5632 5633 return (0); 5634} 5635 5636static void 5637get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5638{ 5639 get_all_cb_t cb = { 0 }; 5640 cb.cb_verbose = verbose; 5641 cb.cb_getone = get_one_dataset; 5642 5643 if (verbose) 5644 set_progress_header(gettext("Reading ZFS config")); 5645 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5646 5647 *dslist = cb.cb_handles; 5648 *count = cb.cb_used; 5649 5650 if (verbose) 5651 finish_progress(gettext("done.")); 5652} 5653 5654/* 5655 * Generic callback for sharing or mounting filesystems. Because the code is so 5656 * similar, we have a common function with an extra parameter to determine which 5657 * mode we are using. 5658 */ 5659#define OP_SHARE 0x1 5660#define OP_MOUNT 0x2 5661 5662/* 5663 * Share or mount a dataset. 5664 */ 5665static int 5666share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5667 boolean_t explicit, const char *options) 5668{ 5669 char mountpoint[ZFS_MAXPROPLEN]; 5670 char shareopts[ZFS_MAXPROPLEN]; 5671 char smbshareopts[ZFS_MAXPROPLEN]; 5672 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5673 struct mnttab mnt; 5674 uint64_t zoned, canmount; 5675 boolean_t shared_nfs, shared_smb; 5676 5677 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5678 5679 /* 5680 * Check to make sure we can mount/share this dataset. If we 5681 * are in the global zone and the filesystem is exported to a 5682 * local zone, or if we are in a local zone and the 5683 * filesystem is not exported, then it is an error. 5684 */ 5685 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5686 5687 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5688 if (!explicit) 5689 return (0); 5690 5691 (void) fprintf(stderr, gettext("cannot %s '%s': " 5692 "dataset is exported to a local zone\n"), cmdname, 5693 zfs_get_name(zhp)); 5694 return (1); 5695 5696 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5697 if (!explicit) 5698 return (0); 5699 5700 (void) fprintf(stderr, gettext("cannot %s '%s': " 5701 "permission denied\n"), cmdname, 5702 zfs_get_name(zhp)); 5703 return (1); 5704 } 5705 5706 /* 5707 * Ignore any filesystems which don't apply to us. This 5708 * includes those with a legacy mountpoint, or those with 5709 * legacy share options. 5710 */ 5711 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5712 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5713 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5714 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5715 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5716 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5717 5718 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5719 strcmp(smbshareopts, "off") == 0) { 5720 if (!explicit) 5721 return (0); 5722 5723 (void) fprintf(stderr, gettext("cannot share '%s': " 5724 "legacy share\n"), zfs_get_name(zhp)); 5725 (void) fprintf(stderr, gettext("to " 5726 "share this filesystem set " 5727 "sharenfs property on\n")); 5728 return (1); 5729 } 5730 5731 /* 5732 * We cannot share or mount legacy filesystems. If the 5733 * shareopts is non-legacy but the mountpoint is legacy, we 5734 * treat it as a legacy share. 5735 */ 5736 if (strcmp(mountpoint, "legacy") == 0) { 5737 if (!explicit) 5738 return (0); 5739 5740 (void) fprintf(stderr, gettext("cannot %s '%s': " 5741 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5742 (void) fprintf(stderr, gettext("use %s(8) to " 5743 "%s this filesystem\n"), cmdname, cmdname); 5744 return (1); 5745 } 5746 5747 if (strcmp(mountpoint, "none") == 0) { 5748 if (!explicit) 5749 return (0); 5750 5751 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5752 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5753 return (1); 5754 } 5755 5756 /* 5757 * canmount explicit outcome 5758 * on no pass through 5759 * on yes pass through 5760 * off no return 0 5761 * off yes display error, return 1 5762 * noauto no return 0 5763 * noauto yes pass through 5764 */ 5765 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5766 if (canmount == ZFS_CANMOUNT_OFF) { 5767 if (!explicit) 5768 return (0); 5769 5770 (void) fprintf(stderr, gettext("cannot %s '%s': " 5771 "'canmount' property is set to 'off'\n"), cmdname, 5772 zfs_get_name(zhp)); 5773 return (1); 5774 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5775 return (0); 5776 } 5777 5778 /* 5779 * At this point, we have verified that the mountpoint and/or 5780 * shareopts are appropriate for auto management. If the 5781 * filesystem is already mounted or shared, return (failing 5782 * for explicit requests); otherwise mount or share the 5783 * filesystem. 5784 */ 5785 switch (op) { 5786 case OP_SHARE: 5787 5788 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5789 shared_smb = zfs_is_shared_smb(zhp, NULL); 5790 5791 if (shared_nfs && shared_smb || 5792 (shared_nfs && strcmp(shareopts, "on") == 0 && 5793 strcmp(smbshareopts, "off") == 0) || 5794 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5795 strcmp(shareopts, "off") == 0)) { 5796 if (!explicit) 5797 return (0); 5798 5799 (void) fprintf(stderr, gettext("cannot share " 5800 "'%s': filesystem already shared\n"), 5801 zfs_get_name(zhp)); 5802 return (1); 5803 } 5804 5805 if (!zfs_is_mounted(zhp, NULL) && 5806 zfs_mount(zhp, NULL, 0) != 0) 5807 return (1); 5808 5809 if (protocol == NULL) { 5810 if (zfs_shareall(zhp) != 0) 5811 return (1); 5812 } else if (strcmp(protocol, "nfs") == 0) { 5813 if (zfs_share_nfs(zhp)) 5814 return (1); 5815 } else if (strcmp(protocol, "smb") == 0) { 5816 if (zfs_share_smb(zhp)) 5817 return (1); 5818 } else { 5819 (void) fprintf(stderr, gettext("cannot share " 5820 "'%s': invalid share type '%s' " 5821 "specified\n"), 5822 zfs_get_name(zhp), protocol); 5823 return (1); 5824 } 5825 5826 break; 5827 5828 case OP_MOUNT: 5829 if (options == NULL) 5830 mnt.mnt_mntopts = ""; 5831 else 5832 mnt.mnt_mntopts = (char *)options; 5833 5834 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5835 zfs_is_mounted(zhp, NULL)) { 5836 if (!explicit) 5837 return (0); 5838 5839 (void) fprintf(stderr, gettext("cannot mount " 5840 "'%s': filesystem already mounted\n"), 5841 zfs_get_name(zhp)); 5842 return (1); 5843 } 5844 5845 if (zfs_mount(zhp, options, flags) != 0) 5846 return (1); 5847 break; 5848 } 5849 5850 return (0); 5851} 5852 5853/* 5854 * Reports progress in the form "(current/total)". Not thread-safe. 5855 */ 5856static void 5857report_mount_progress(int current, int total) 5858{ 5859 static time_t last_progress_time = 0; 5860 time_t now = time(NULL); 5861 char info[32]; 5862 5863 /* report 1..n instead of 0..n-1 */ 5864 ++current; 5865 5866 /* display header if we're here for the first time */ 5867 if (current == 1) { 5868 set_progress_header(gettext("Mounting ZFS filesystems")); 5869 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5870 /* too soon to report again */ 5871 return; 5872 } 5873 5874 last_progress_time = now; 5875 5876 (void) sprintf(info, "(%d/%d)", current, total); 5877 5878 if (current == total) 5879 finish_progress(info); 5880 else 5881 update_progress(info); 5882} 5883 5884static void 5885append_options(char *mntopts, char *newopts) 5886{ 5887 int len = strlen(mntopts); 5888 5889 /* original length plus new string to append plus 1 for the comma */ 5890 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5891 (void) fprintf(stderr, gettext("the opts argument for " 5892 "'%c' option is too long (more than %d chars)\n"), 5893 "-o", MNT_LINE_MAX); 5894 usage(B_FALSE); 5895 } 5896 5897 if (*mntopts) 5898 mntopts[len++] = ','; 5899 5900 (void) strcpy(&mntopts[len], newopts); 5901} 5902 5903static int 5904share_mount(int op, int argc, char **argv) 5905{ 5906 int do_all = 0; 5907 boolean_t verbose = B_FALSE; 5908 int c, ret = 0; 5909 char *options = NULL; 5910 int flags = 0; 5911 5912 /* check options */ 5913 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5914 != -1) { 5915 switch (c) { 5916 case 'a': 5917 do_all = 1; 5918 break; 5919 case 'v': 5920 verbose = B_TRUE; 5921 break; 5922 case 'o': 5923 if (*optarg == '\0') { 5924 (void) fprintf(stderr, gettext("empty mount " 5925 "options (-o) specified\n")); 5926 usage(B_FALSE); 5927 } 5928 5929 if (options == NULL) 5930 options = safe_malloc(MNT_LINE_MAX + 1); 5931 5932 /* option validation is done later */ 5933 append_options(options, optarg); 5934 break; 5935 5936 case 'O': 5937 warnx("no overlay mounts support on FreeBSD, ignoring"); 5938 break; 5939 case ':': 5940 (void) fprintf(stderr, gettext("missing argument for " 5941 "'%c' option\n"), optopt); 5942 usage(B_FALSE); 5943 break; 5944 case '?': 5945 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5946 optopt); 5947 usage(B_FALSE); 5948 } 5949 } 5950 5951 argc -= optind; 5952 argv += optind; 5953 5954 /* check number of arguments */ 5955 if (do_all) { 5956 zfs_handle_t **dslist = NULL; 5957 size_t i, count = 0; 5958 char *protocol = NULL; 5959 5960 if (op == OP_SHARE && argc > 0) { 5961 if (strcmp(argv[0], "nfs") != 0 && 5962 strcmp(argv[0], "smb") != 0) { 5963 (void) fprintf(stderr, gettext("share type " 5964 "must be 'nfs' or 'smb'\n")); 5965 usage(B_FALSE); 5966 } 5967 protocol = argv[0]; 5968 argc--; 5969 argv++; 5970 } 5971 5972 if (argc != 0) { 5973 (void) fprintf(stderr, gettext("too many arguments\n")); 5974 usage(B_FALSE); 5975 } 5976 5977 start_progress_timer(); 5978 get_all_datasets(&dslist, &count, verbose); 5979 5980 if (count == 0) 5981 return (0); 5982 5983 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5984 5985 for (i = 0; i < count; i++) { 5986 if (verbose) 5987 report_mount_progress(i, count); 5988 5989 if (share_mount_one(dslist[i], op, flags, protocol, 5990 B_FALSE, options) != 0) 5991 ret = 1; 5992 zfs_close(dslist[i]); 5993 } 5994 5995 free(dslist); 5996 } else if (argc == 0) { 5997 struct mnttab entry; 5998 5999 if ((op == OP_SHARE) || (options != NULL)) { 6000 (void) fprintf(stderr, gettext("missing filesystem " 6001 "argument (specify -a for all)\n")); 6002 usage(B_FALSE); 6003 } 6004 6005 /* 6006 * When mount is given no arguments, go through /etc/mnttab and 6007 * display any active ZFS mounts. We hide any snapshots, since 6008 * they are controlled automatically. 6009 */ 6010 rewind(mnttab_file); 6011 while (getmntent(mnttab_file, &entry) == 0) { 6012 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6013 strchr(entry.mnt_special, '@') != NULL) 6014 continue; 6015 6016 (void) printf("%-30s %s\n", entry.mnt_special, 6017 entry.mnt_mountp); 6018 } 6019 6020 } else { 6021 zfs_handle_t *zhp; 6022 6023 if (argc > 1) { 6024 (void) fprintf(stderr, 6025 gettext("too many arguments\n")); 6026 usage(B_FALSE); 6027 } 6028 6029 if ((zhp = zfs_open(g_zfs, argv[0], 6030 ZFS_TYPE_FILESYSTEM)) == NULL) { 6031 ret = 1; 6032 } else { 6033 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6034 options); 6035 zfs_close(zhp); 6036 } 6037 } 6038 6039 return (ret); 6040} 6041 6042/* 6043 * zfs mount -a [nfs] 6044 * zfs mount filesystem 6045 * 6046 * Mount all filesystems, or mount the given filesystem. 6047 */ 6048static int 6049zfs_do_mount(int argc, char **argv) 6050{ 6051 return (share_mount(OP_MOUNT, argc, argv)); 6052} 6053 6054/* 6055 * zfs share -a [nfs | smb] 6056 * zfs share filesystem 6057 * 6058 * Share all filesystems, or share the given filesystem. 6059 */ 6060static int 6061zfs_do_share(int argc, char **argv) 6062{ 6063 return (share_mount(OP_SHARE, argc, argv)); 6064} 6065 6066typedef struct unshare_unmount_node { 6067 zfs_handle_t *un_zhp; 6068 char *un_mountp; 6069 uu_avl_node_t un_avlnode; 6070} unshare_unmount_node_t; 6071 6072/* ARGSUSED */ 6073static int 6074unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6075{ 6076 const unshare_unmount_node_t *l = larg; 6077 const unshare_unmount_node_t *r = rarg; 6078 6079 return (strcmp(l->un_mountp, r->un_mountp)); 6080} 6081 6082/* 6083 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6084 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6085 * and unmount it appropriately. 6086 */ 6087static int 6088unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6089{ 6090 zfs_handle_t *zhp; 6091 int ret = 0; 6092 struct stat64 statbuf; 6093 struct extmnttab entry; 6094 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6095 ino_t path_inode; 6096 6097 /* 6098 * Search for the path in /etc/mnttab. Rather than looking for the 6099 * specific path, which can be fooled by non-standard paths (i.e. ".." 6100 * or "//"), we stat() the path and search for the corresponding 6101 * (major,minor) device pair. 6102 */ 6103 if (stat64(path, &statbuf) != 0) { 6104 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6105 cmdname, path, strerror(errno)); 6106 return (1); 6107 } 6108 path_inode = statbuf.st_ino; 6109 6110 /* 6111 * Search for the given (major,minor) pair in the mount table. 6112 */ 6113#ifdef sun 6114 rewind(mnttab_file); 6115 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6116 if (entry.mnt_major == major(statbuf.st_dev) && 6117 entry.mnt_minor == minor(statbuf.st_dev)) 6118 break; 6119 } 6120#else 6121 { 6122 struct statfs sfs; 6123 6124 if (statfs(path, &sfs) != 0) { 6125 (void) fprintf(stderr, "%s: %s\n", path, 6126 strerror(errno)); 6127 ret = -1; 6128 } 6129 statfs2mnttab(&sfs, &entry); 6130 } 6131#endif 6132 if (ret != 0) { 6133 if (op == OP_SHARE) { 6134 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6135 "currently mounted\n"), cmdname, path); 6136 return (1); 6137 } 6138 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6139 path); 6140 if ((ret = umount2(path, flags)) != 0) 6141 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6142 strerror(errno)); 6143 return (ret != 0); 6144 } 6145 6146 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6147 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6148 "filesystem\n"), cmdname, path); 6149 return (1); 6150 } 6151 6152 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6153 ZFS_TYPE_FILESYSTEM)) == NULL) 6154 return (1); 6155 6156 ret = 1; 6157 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6158 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6159 cmdname, path, strerror(errno)); 6160 goto out; 6161 } else if (statbuf.st_ino != path_inode) { 6162 (void) fprintf(stderr, gettext("cannot " 6163 "%s '%s': not a mountpoint\n"), cmdname, path); 6164 goto out; 6165 } 6166 6167 if (op == OP_SHARE) { 6168 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6169 char smbshare_prop[ZFS_MAXPROPLEN]; 6170 6171 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6172 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6173 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6174 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6175 6176 if (strcmp(nfs_mnt_prop, "off") == 0 && 6177 strcmp(smbshare_prop, "off") == 0) { 6178 (void) fprintf(stderr, gettext("cannot unshare " 6179 "'%s': legacy share\n"), path); 6180#ifdef illumos 6181 (void) fprintf(stderr, gettext("use " 6182 "unshare(1M) to unshare this filesystem\n")); 6183#endif 6184 } else if (!zfs_is_shared(zhp)) { 6185 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6186 "not currently shared\n"), path); 6187 } else { 6188 ret = zfs_unshareall_bypath(zhp, path); 6189 } 6190 } else { 6191 char mtpt_prop[ZFS_MAXPROPLEN]; 6192 6193 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6194 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6195 6196 if (is_manual) { 6197 ret = zfs_unmount(zhp, NULL, flags); 6198 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6199 (void) fprintf(stderr, gettext("cannot unmount " 6200 "'%s': legacy mountpoint\n"), 6201 zfs_get_name(zhp)); 6202 (void) fprintf(stderr, gettext("use umount(8) " 6203 "to unmount this filesystem\n")); 6204 } else { 6205 ret = zfs_unmountall(zhp, flags); 6206 } 6207 } 6208 6209out: 6210 zfs_close(zhp); 6211 6212 return (ret != 0); 6213} 6214 6215/* 6216 * Generic callback for unsharing or unmounting a filesystem. 6217 */ 6218static int 6219unshare_unmount(int op, int argc, char **argv) 6220{ 6221 int do_all = 0; 6222 int flags = 0; 6223 int ret = 0; 6224 int c; 6225 zfs_handle_t *zhp; 6226 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6227 char sharesmb[ZFS_MAXPROPLEN]; 6228 6229 /* check options */ 6230 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6231 switch (c) { 6232 case 'a': 6233 do_all = 1; 6234 break; 6235 case 'f': 6236 flags = MS_FORCE; 6237 break; 6238 case '?': 6239 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6240 optopt); 6241 usage(B_FALSE); 6242 } 6243 } 6244 6245 argc -= optind; 6246 argv += optind; 6247 6248 if (do_all) { 6249 /* 6250 * We could make use of zfs_for_each() to walk all datasets in 6251 * the system, but this would be very inefficient, especially 6252 * since we would have to linearly search /etc/mnttab for each 6253 * one. Instead, do one pass through /etc/mnttab looking for 6254 * zfs entries and call zfs_unmount() for each one. 6255 * 6256 * Things get a little tricky if the administrator has created 6257 * mountpoints beneath other ZFS filesystems. In this case, we 6258 * have to unmount the deepest filesystems first. To accomplish 6259 * this, we place all the mountpoints in an AVL tree sorted by 6260 * the special type (dataset name), and walk the result in 6261 * reverse to make sure to get any snapshots first. 6262 */ 6263 struct mnttab entry; 6264 uu_avl_pool_t *pool; 6265 uu_avl_t *tree; 6266 unshare_unmount_node_t *node; 6267 uu_avl_index_t idx; 6268 uu_avl_walk_t *walk; 6269 6270 if (argc != 0) { 6271 (void) fprintf(stderr, gettext("too many arguments\n")); 6272 usage(B_FALSE); 6273 } 6274 6275 if (((pool = uu_avl_pool_create("unmount_pool", 6276 sizeof (unshare_unmount_node_t), 6277 offsetof(unshare_unmount_node_t, un_avlnode), 6278 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6279 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6280 nomem(); 6281 6282 rewind(mnttab_file); 6283 while (getmntent(mnttab_file, &entry) == 0) { 6284 6285 /* ignore non-ZFS entries */ 6286 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6287 continue; 6288 6289 /* ignore snapshots */ 6290 if (strchr(entry.mnt_special, '@') != NULL) 6291 continue; 6292 6293 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6294 ZFS_TYPE_FILESYSTEM)) == NULL) { 6295 ret = 1; 6296 continue; 6297 } 6298 6299 switch (op) { 6300 case OP_SHARE: 6301 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6302 nfs_mnt_prop, 6303 sizeof (nfs_mnt_prop), 6304 NULL, NULL, 0, B_FALSE) == 0); 6305 if (strcmp(nfs_mnt_prop, "off") != 0) 6306 break; 6307 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6308 nfs_mnt_prop, 6309 sizeof (nfs_mnt_prop), 6310 NULL, NULL, 0, B_FALSE) == 0); 6311 if (strcmp(nfs_mnt_prop, "off") == 0) 6312 continue; 6313 break; 6314 case OP_MOUNT: 6315 /* Ignore legacy mounts */ 6316 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6317 nfs_mnt_prop, 6318 sizeof (nfs_mnt_prop), 6319 NULL, NULL, 0, B_FALSE) == 0); 6320 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6321 continue; 6322 /* Ignore canmount=noauto mounts */ 6323 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6324 ZFS_CANMOUNT_NOAUTO) 6325 continue; 6326 default: 6327 break; 6328 } 6329 6330 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6331 node->un_zhp = zhp; 6332 node->un_mountp = safe_strdup(entry.mnt_mountp); 6333 6334 uu_avl_node_init(node, &node->un_avlnode, pool); 6335 6336 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6337 uu_avl_insert(tree, node, idx); 6338 } else { 6339 zfs_close(node->un_zhp); 6340 free(node->un_mountp); 6341 free(node); 6342 } 6343 } 6344 6345 /* 6346 * Walk the AVL tree in reverse, unmounting each filesystem and 6347 * removing it from the AVL tree in the process. 6348 */ 6349 if ((walk = uu_avl_walk_start(tree, 6350 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6351 nomem(); 6352 6353 while ((node = uu_avl_walk_next(walk)) != NULL) { 6354 uu_avl_remove(tree, node); 6355 6356 switch (op) { 6357 case OP_SHARE: 6358 if (zfs_unshareall_bypath(node->un_zhp, 6359 node->un_mountp) != 0) 6360 ret = 1; 6361 break; 6362 6363 case OP_MOUNT: 6364 if (zfs_unmount(node->un_zhp, 6365 node->un_mountp, flags) != 0) 6366 ret = 1; 6367 break; 6368 } 6369 6370 zfs_close(node->un_zhp); 6371 free(node->un_mountp); 6372 free(node); 6373 } 6374 6375 uu_avl_walk_end(walk); 6376 uu_avl_destroy(tree); 6377 uu_avl_pool_destroy(pool); 6378 6379 } else { 6380 if (argc != 1) { 6381 if (argc == 0) 6382 (void) fprintf(stderr, 6383 gettext("missing filesystem argument\n")); 6384 else 6385 (void) fprintf(stderr, 6386 gettext("too many arguments\n")); 6387 usage(B_FALSE); 6388 } 6389 6390 /* 6391 * We have an argument, but it may be a full path or a ZFS 6392 * filesystem. Pass full paths off to unmount_path() (shared by 6393 * manual_unmount), otherwise open the filesystem and pass to 6394 * zfs_unmount(). 6395 */ 6396 if (argv[0][0] == '/') 6397 return (unshare_unmount_path(op, argv[0], 6398 flags, B_FALSE)); 6399 6400 if ((zhp = zfs_open(g_zfs, argv[0], 6401 ZFS_TYPE_FILESYSTEM)) == NULL) 6402 return (1); 6403 6404 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6405 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6406 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6407 NULL, 0, B_FALSE) == 0); 6408 6409 switch (op) { 6410 case OP_SHARE: 6411 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6412 nfs_mnt_prop, 6413 sizeof (nfs_mnt_prop), 6414 NULL, NULL, 0, B_FALSE) == 0); 6415 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6416 sharesmb, sizeof (sharesmb), NULL, NULL, 6417 0, B_FALSE) == 0); 6418 6419 if (strcmp(nfs_mnt_prop, "off") == 0 && 6420 strcmp(sharesmb, "off") == 0) { 6421 (void) fprintf(stderr, gettext("cannot " 6422 "unshare '%s': legacy share\n"), 6423 zfs_get_name(zhp)); 6424#ifdef illumos 6425 (void) fprintf(stderr, gettext("use " 6426 "unshare(1M) to unshare this " 6427 "filesystem\n")); 6428#endif 6429 ret = 1; 6430 } else if (!zfs_is_shared(zhp)) { 6431 (void) fprintf(stderr, gettext("cannot " 6432 "unshare '%s': not currently " 6433 "shared\n"), zfs_get_name(zhp)); 6434 ret = 1; 6435 } else if (zfs_unshareall(zhp) != 0) { 6436 ret = 1; 6437 } 6438 break; 6439 6440 case OP_MOUNT: 6441 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6442 (void) fprintf(stderr, gettext("cannot " 6443 "unmount '%s': legacy " 6444 "mountpoint\n"), zfs_get_name(zhp)); 6445 (void) fprintf(stderr, gettext("use " 6446 "umount(8) to unmount this " 6447 "filesystem\n")); 6448 ret = 1; 6449 } else if (!zfs_is_mounted(zhp, NULL)) { 6450 (void) fprintf(stderr, gettext("cannot " 6451 "unmount '%s': not currently " 6452 "mounted\n"), 6453 zfs_get_name(zhp)); 6454 ret = 1; 6455 } else if (zfs_unmountall(zhp, flags) != 0) { 6456 ret = 1; 6457 } 6458 break; 6459 } 6460 6461 zfs_close(zhp); 6462 } 6463 6464 return (ret); 6465} 6466 6467/* 6468 * zfs unmount -a 6469 * zfs unmount filesystem 6470 * 6471 * Unmount all filesystems, or a specific ZFS filesystem. 6472 */ 6473static int 6474zfs_do_unmount(int argc, char **argv) 6475{ 6476 return (unshare_unmount(OP_MOUNT, argc, argv)); 6477} 6478 6479/* 6480 * zfs unshare -a 6481 * zfs unshare filesystem 6482 * 6483 * Unshare all filesystems, or a specific ZFS filesystem. 6484 */ 6485static int 6486zfs_do_unshare(int argc, char **argv) 6487{ 6488 return (unshare_unmount(OP_SHARE, argc, argv)); 6489} 6490 6491/* 6492 * Attach/detach the given dataset to/from the given jail 6493 */ 6494/* ARGSUSED */ 6495static int 6496do_jail(int argc, char **argv, int attach) 6497{ 6498 zfs_handle_t *zhp; 6499 int jailid, ret; 6500 6501 /* check number of arguments */ 6502 if (argc < 3) { 6503 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6504 usage(B_FALSE); 6505 } 6506 if (argc > 3) { 6507 (void) fprintf(stderr, gettext("too many arguments\n")); 6508 usage(B_FALSE); 6509 } 6510 6511 jailid = jail_getid(argv[1]); 6512 if (jailid < 0) { 6513 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 6514 usage(B_FALSE); 6515 } 6516 6517 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6518 if (zhp == NULL) 6519 return (1); 6520 6521 ret = (zfs_jail(zhp, jailid, attach) != 0); 6522 6523 zfs_close(zhp); 6524 return (ret); 6525} 6526 6527/* 6528 * zfs jail jailid filesystem 6529 * 6530 * Attach the given dataset to the given jail 6531 */ 6532/* ARGSUSED */ 6533static int 6534zfs_do_jail(int argc, char **argv) 6535{ 6536 6537 return (do_jail(argc, argv, 1)); 6538} 6539 6540/* 6541 * zfs unjail jailid filesystem 6542 * 6543 * Detach the given dataset from the given jail 6544 */ 6545/* ARGSUSED */ 6546static int 6547zfs_do_unjail(int argc, char **argv) 6548{ 6549 6550 return (do_jail(argc, argv, 0)); 6551} 6552 6553/* 6554 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6555 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6556 */ 6557static int 6558manual_mount(int argc, char **argv) 6559{ 6560 zfs_handle_t *zhp; 6561 char mountpoint[ZFS_MAXPROPLEN]; 6562 char mntopts[MNT_LINE_MAX] = { '\0' }; 6563 int ret = 0; 6564 int c; 6565 int flags = 0; 6566 char *dataset, *path; 6567 6568 /* check options */ 6569 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6570 switch (c) { 6571 case 'o': 6572 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6573 break; 6574 case 'O': 6575 flags |= MS_OVERLAY; 6576 break; 6577 case 'm': 6578 flags |= MS_NOMNTTAB; 6579 break; 6580 case ':': 6581 (void) fprintf(stderr, gettext("missing argument for " 6582 "'%c' option\n"), optopt); 6583 usage(B_FALSE); 6584 break; 6585 case '?': 6586 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6587 optopt); 6588 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6589 "<path>\n")); 6590 return (2); 6591 } 6592 } 6593 6594 argc -= optind; 6595 argv += optind; 6596 6597 /* check that we only have two arguments */ 6598 if (argc != 2) { 6599 if (argc == 0) 6600 (void) fprintf(stderr, gettext("missing dataset " 6601 "argument\n")); 6602 else if (argc == 1) 6603 (void) fprintf(stderr, 6604 gettext("missing mountpoint argument\n")); 6605 else 6606 (void) fprintf(stderr, gettext("too many arguments\n")); 6607 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6608 return (2); 6609 } 6610 6611 dataset = argv[0]; 6612 path = argv[1]; 6613 6614 /* try to open the dataset */ 6615 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6616 return (1); 6617 6618 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6619 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6620 6621 /* check for legacy mountpoint and complain appropriately */ 6622 ret = 0; 6623 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6624 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6625 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6626 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6627 strerror(errno)); 6628 ret = 1; 6629 } 6630 } else { 6631 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6632 "mounted using 'mount -t zfs'\n"), dataset); 6633 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6634 "instead.\n"), path); 6635 (void) fprintf(stderr, gettext("If you must use 'mount -t zfs' " 6636 "or /etc/fstab, use 'zfs set mountpoint=legacy'.\n")); 6637 (void) fprintf(stderr, gettext("See zfs(8) for more " 6638 "information.\n")); 6639 ret = 1; 6640 } 6641 6642 return (ret); 6643} 6644 6645/* 6646 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6647 * unmounts of non-legacy filesystems, as this is the dominant administrative 6648 * interface. 6649 */ 6650static int 6651manual_unmount(int argc, char **argv) 6652{ 6653 int flags = 0; 6654 int c; 6655 6656 /* check options */ 6657 while ((c = getopt(argc, argv, "f")) != -1) { 6658 switch (c) { 6659 case 'f': 6660 flags = MS_FORCE; 6661 break; 6662 case '?': 6663 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6664 optopt); 6665 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6666 "<path>\n")); 6667 return (2); 6668 } 6669 } 6670 6671 argc -= optind; 6672 argv += optind; 6673 6674 /* check arguments */ 6675 if (argc != 1) { 6676 if (argc == 0) 6677 (void) fprintf(stderr, gettext("missing path " 6678 "argument\n")); 6679 else 6680 (void) fprintf(stderr, gettext("too many arguments\n")); 6681 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6682 return (2); 6683 } 6684 6685 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6686} 6687 6688static int 6689find_command_idx(char *command, int *idx) 6690{ 6691 int i; 6692 6693 for (i = 0; i < NCOMMAND; i++) { 6694 if (command_table[i].name == NULL) 6695 continue; 6696 6697 if (strcmp(command, command_table[i].name) == 0) { 6698 *idx = i; 6699 return (0); 6700 } 6701 } 6702 return (1); 6703} 6704 6705static int 6706zfs_do_diff(int argc, char **argv) 6707{ 6708 zfs_handle_t *zhp; 6709 int flags = 0; 6710 char *tosnap = NULL; 6711 char *fromsnap = NULL; 6712 char *atp, *copy; 6713 int err = 0; 6714 int c; 6715 6716 while ((c = getopt(argc, argv, "FHt")) != -1) { 6717 switch (c) { 6718 case 'F': 6719 flags |= ZFS_DIFF_CLASSIFY; 6720 break; 6721 case 'H': 6722 flags |= ZFS_DIFF_PARSEABLE; 6723 break; 6724 case 't': 6725 flags |= ZFS_DIFF_TIMESTAMP; 6726 break; 6727 default: 6728 (void) fprintf(stderr, 6729 gettext("invalid option '%c'\n"), optopt); 6730 usage(B_FALSE); 6731 } 6732 } 6733 6734 argc -= optind; 6735 argv += optind; 6736 6737 if (argc < 1) { 6738 (void) fprintf(stderr, 6739 gettext("must provide at least one snapshot name\n")); 6740 usage(B_FALSE); 6741 } 6742 6743 if (argc > 2) { 6744 (void) fprintf(stderr, gettext("too many arguments\n")); 6745 usage(B_FALSE); 6746 } 6747 6748 fromsnap = argv[0]; 6749 tosnap = (argc == 2) ? argv[1] : NULL; 6750 6751 copy = NULL; 6752 if (*fromsnap != '@') 6753 copy = strdup(fromsnap); 6754 else if (tosnap) 6755 copy = strdup(tosnap); 6756 if (copy == NULL) 6757 usage(B_FALSE); 6758 6759 if (atp = strchr(copy, '@')) 6760 *atp = '\0'; 6761 6762 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6763 return (1); 6764 6765 free(copy); 6766 6767 /* 6768 * Ignore SIGPIPE so that the library can give us 6769 * information on any failure 6770 */ 6771 (void) sigignore(SIGPIPE); 6772 6773 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6774 6775 zfs_close(zhp); 6776 6777 return (err != 0); 6778} 6779 6780/* 6781 * zfs bookmark <fs@snap> <fs#bmark> 6782 * 6783 * Creates a bookmark with the given name from the given snapshot. 6784 */ 6785static int 6786zfs_do_bookmark(int argc, char **argv) 6787{ 6788 char snapname[ZFS_MAXNAMELEN]; 6789 zfs_handle_t *zhp; 6790 nvlist_t *nvl; 6791 int ret = 0; 6792 int c; 6793 6794 /* check options */ 6795 while ((c = getopt(argc, argv, "")) != -1) { 6796 switch (c) { 6797 case '?': 6798 (void) fprintf(stderr, 6799 gettext("invalid option '%c'\n"), optopt); 6800 goto usage; 6801 } 6802 } 6803 6804 argc -= optind; 6805 argv += optind; 6806 6807 /* check number of arguments */ 6808 if (argc < 1) { 6809 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6810 goto usage; 6811 } 6812 if (argc < 2) { 6813 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6814 goto usage; 6815 } 6816 6817 if (strchr(argv[1], '#') == NULL) { 6818 (void) fprintf(stderr, 6819 gettext("invalid bookmark name '%s' -- " 6820 "must contain a '#'\n"), argv[1]); 6821 goto usage; 6822 } 6823 6824 if (argv[0][0] == '@') { 6825 /* 6826 * Snapshot name begins with @. 6827 * Default to same fs as bookmark. 6828 */ 6829 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6830 *strchr(snapname, '#') = '\0'; 6831 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6832 } else { 6833 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6834 } 6835 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6836 if (zhp == NULL) 6837 goto usage; 6838 zfs_close(zhp); 6839 6840 6841 nvl = fnvlist_alloc(); 6842 fnvlist_add_string(nvl, argv[1], snapname); 6843 ret = lzc_bookmark(nvl, NULL); 6844 fnvlist_free(nvl); 6845 6846 if (ret != 0) { 6847 const char *err_msg; 6848 char errbuf[1024]; 6849 6850 (void) snprintf(errbuf, sizeof (errbuf), 6851 dgettext(TEXT_DOMAIN, 6852 "cannot create bookmark '%s'"), argv[1]); 6853 6854 switch (ret) { 6855 case EXDEV: 6856 err_msg = "bookmark is in a different pool"; 6857 break; 6858 case EEXIST: 6859 err_msg = "bookmark exists"; 6860 break; 6861 case EINVAL: 6862 err_msg = "invalid argument"; 6863 break; 6864 case ENOTSUP: 6865 err_msg = "bookmark feature not enabled"; 6866 break; 6867 case ENOSPC: 6868 err_msg = "out of space"; 6869 break; 6870 default: 6871 err_msg = "unknown error"; 6872 break; 6873 } 6874 (void) fprintf(stderr, "%s: %s\n", errbuf, 6875 dgettext(TEXT_DOMAIN, err_msg)); 6876 } 6877 6878 return (ret != 0); 6879 6880usage: 6881 usage(B_FALSE); 6882 return (-1); 6883} 6884 6885int 6886main(int argc, char **argv) 6887{ 6888 int ret = 0; 6889 int i; 6890 char *progname; 6891 char *cmdname; 6892 6893 (void) setlocale(LC_ALL, ""); 6894 (void) textdomain(TEXT_DOMAIN); 6895 6896 opterr = 0; 6897 6898 if ((g_zfs = libzfs_init()) == NULL) { 6899 (void) fprintf(stderr, gettext("internal error: failed to " 6900 "initialize ZFS library\n")); 6901 return (1); 6902 } 6903 6904 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6905 6906 libzfs_print_on_error(g_zfs, B_TRUE); 6907 6908 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6909 (void) fprintf(stderr, gettext("internal error: unable to " 6910 "open %s\n"), MNTTAB); 6911 return (1); 6912 } 6913 6914 /* 6915 * This command also doubles as the /etc/fs mount and unmount program. 6916 * Determine if we should take this behavior based on argv[0]. 6917 */ 6918 progname = basename(argv[0]); 6919 if (strcmp(progname, "mount") == 0) { 6920 ret = manual_mount(argc, argv); 6921 } else if (strcmp(progname, "umount") == 0) { 6922 ret = manual_unmount(argc, argv); 6923 } else { 6924 /* 6925 * Make sure the user has specified some command. 6926 */ 6927 if (argc < 2) { 6928 (void) fprintf(stderr, gettext("missing command\n")); 6929 usage(B_FALSE); 6930 } 6931 6932 cmdname = argv[1]; 6933 6934 /* 6935 * The 'umount' command is an alias for 'unmount' 6936 */ 6937 if (strcmp(cmdname, "umount") == 0) 6938 cmdname = "unmount"; 6939 6940 /* 6941 * The 'recv' command is an alias for 'receive' 6942 */ 6943 if (strcmp(cmdname, "recv") == 0) 6944 cmdname = "receive"; 6945 6946 /* 6947 * The 'snap' command is an alias for 'snapshot' 6948 */ 6949 if (strcmp(cmdname, "snap") == 0) 6950 cmdname = "snapshot"; 6951 6952 /* 6953 * Special case '-?' 6954 */ 6955 if (strcmp(cmdname, "-?") == 0) 6956 usage(B_TRUE); 6957 6958 /* 6959 * Run the appropriate command. 6960 */ 6961 libzfs_mnttab_cache(g_zfs, B_TRUE); 6962 if (find_command_idx(cmdname, &i) == 0) { 6963 current_command = &command_table[i]; 6964 ret = command_table[i].func(argc - 1, argv + 1); 6965 } else if (strchr(cmdname, '=') != NULL) { 6966 verify(find_command_idx("set", &i) == 0); 6967 current_command = &command_table[i]; 6968 ret = command_table[i].func(argc, argv); 6969 } else { 6970 (void) fprintf(stderr, gettext("unrecognized " 6971 "command '%s'\n"), cmdname); 6972 usage(B_FALSE); 6973 } 6974 libzfs_mnttab_cache(g_zfs, B_FALSE); 6975 } 6976 6977 (void) fclose(mnttab_file); 6978 6979 if (ret == 0 && log_history) 6980 (void) zpool_log_history(g_zfs, history_str); 6981 6982 libzfs_fini(g_zfs); 6983 6984 /* 6985 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6986 * for the purposes of running ::findleaks. 6987 */ 6988 if (getenv("ZFS_ABORT") != NULL) { 6989 (void) printf("dumping core by request\n"); 6990 abort(); 6991 } 6992 6993 return (ret); 6994} 6995