zfs_main.c revision 288346
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 * Check if the dataset is mountable and should be automatically mounted. 597 */ 598static boolean_t 599should_auto_mount(zfs_handle_t *zhp) 600{ 601 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 602 return (B_FALSE); 603 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 604} 605 606/* 607 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 608 * 609 * Given an existing dataset, create a writable copy whose initial contents 610 * are the same as the source. The newly created dataset maintains a 611 * dependency on the original; the original cannot be destroyed so long as 612 * the clone exists. 613 * 614 * The '-p' flag creates all the non-existing ancestors of the target first. 615 */ 616static int 617zfs_do_clone(int argc, char **argv) 618{ 619 zfs_handle_t *zhp = NULL; 620 boolean_t parents = B_FALSE; 621 nvlist_t *props; 622 int ret = 0; 623 int c; 624 625 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 626 nomem(); 627 628 /* check options */ 629 while ((c = getopt(argc, argv, "o:p")) != -1) { 630 switch (c) { 631 case 'o': 632 if (parseprop(props, optarg)) 633 return (1); 634 break; 635 case 'p': 636 parents = B_TRUE; 637 break; 638 case '?': 639 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 640 optopt); 641 goto usage; 642 } 643 } 644 645 argc -= optind; 646 argv += optind; 647 648 /* check number of arguments */ 649 if (argc < 1) { 650 (void) fprintf(stderr, gettext("missing source dataset " 651 "argument\n")); 652 goto usage; 653 } 654 if (argc < 2) { 655 (void) fprintf(stderr, gettext("missing target dataset " 656 "argument\n")); 657 goto usage; 658 } 659 if (argc > 2) { 660 (void) fprintf(stderr, gettext("too many arguments\n")); 661 goto usage; 662 } 663 664 /* open the source dataset */ 665 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 666 return (1); 667 668 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 669 ZFS_TYPE_VOLUME)) { 670 /* 671 * Now create the ancestors of the target dataset. If the 672 * target already exists and '-p' option was used we should not 673 * complain. 674 */ 675 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 676 ZFS_TYPE_VOLUME)) 677 return (0); 678 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 679 return (1); 680 } 681 682 /* pass to libzfs */ 683 ret = zfs_clone(zhp, argv[1], props); 684 685 /* create the mountpoint if necessary */ 686 if (ret == 0) { 687 zfs_handle_t *clone; 688 689 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 690 if (clone != NULL) { 691 /* 692 * If the user doesn't want the dataset 693 * automatically mounted, then skip the mount/share 694 * step. 695 */ 696 if (should_auto_mount(clone)) { 697 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 698 (void) fprintf(stderr, gettext("clone " 699 "successfully created, " 700 "but not mounted\n")); 701 } else if ((ret = zfs_share(clone)) != 0) { 702 (void) fprintf(stderr, gettext("clone " 703 "successfully created, " 704 "but not shared\n")); 705 } 706 } 707 zfs_close(clone); 708 } 709 } 710 711 zfs_close(zhp); 712 nvlist_free(props); 713 714 return (!!ret); 715 716usage: 717 if (zhp) 718 zfs_close(zhp); 719 nvlist_free(props); 720 usage(B_FALSE); 721 return (-1); 722} 723 724/* 725 * zfs create [-pu] [-o prop=value] ... fs 726 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 727 * 728 * Create a new dataset. This command can be used to create filesystems 729 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 730 * For volumes, the user must specify a size to be used. 731 * 732 * The '-s' flag applies only to volumes, and indicates that we should not try 733 * to set the reservation for this volume. By default we set a reservation 734 * equal to the size for any volume. For pools with SPA_VERSION >= 735 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 736 * 737 * The '-p' flag creates all the non-existing ancestors of the target first. 738 * 739 * The '-u' flag prevents mounting of newly created file system. 740 */ 741static int 742zfs_do_create(int argc, char **argv) 743{ 744 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 745 zfs_handle_t *zhp = NULL; 746 uint64_t volsize; 747 int c; 748 boolean_t noreserve = B_FALSE; 749 boolean_t bflag = B_FALSE; 750 boolean_t parents = B_FALSE; 751 boolean_t nomount = B_FALSE; 752 int ret = 1; 753 nvlist_t *props; 754 uint64_t intval; 755 756 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 757 nomem(); 758 759 /* check options */ 760 while ((c = getopt(argc, argv, ":V:b:so:pu")) != -1) { 761 switch (c) { 762 case 'V': 763 type = ZFS_TYPE_VOLUME; 764 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 765 (void) fprintf(stderr, gettext("bad volume " 766 "size '%s': %s\n"), optarg, 767 libzfs_error_description(g_zfs)); 768 goto error; 769 } 770 771 if (nvlist_add_uint64(props, 772 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 773 nomem(); 774 volsize = intval; 775 break; 776 case 'p': 777 parents = B_TRUE; 778 break; 779 case 'b': 780 bflag = B_TRUE; 781 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 782 (void) fprintf(stderr, gettext("bad volume " 783 "block size '%s': %s\n"), optarg, 784 libzfs_error_description(g_zfs)); 785 goto error; 786 } 787 788 if (nvlist_add_uint64(props, 789 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 790 intval) != 0) 791 nomem(); 792 break; 793 case 'o': 794 if (parseprop(props, optarg)) 795 goto error; 796 break; 797 case 's': 798 noreserve = B_TRUE; 799 break; 800 case 'u': 801 nomount = B_TRUE; 802 break; 803 case ':': 804 (void) fprintf(stderr, gettext("missing size " 805 "argument\n")); 806 goto badusage; 807 case '?': 808 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 809 optopt); 810 goto badusage; 811 } 812 } 813 814 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 815 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 816 "used when creating a volume\n")); 817 goto badusage; 818 } 819 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 820 (void) fprintf(stderr, gettext("'-u' can only be " 821 "used when creating a file system\n")); 822 goto badusage; 823 } 824 825 argc -= optind; 826 argv += optind; 827 828 /* check number of arguments */ 829 if (argc == 0) { 830 (void) fprintf(stderr, gettext("missing %s argument\n"), 831 zfs_type_to_name(type)); 832 goto badusage; 833 } 834 if (argc > 1) { 835 (void) fprintf(stderr, gettext("too many arguments\n")); 836 goto badusage; 837 } 838 839 if (type == ZFS_TYPE_VOLUME && !noreserve) { 840 zpool_handle_t *zpool_handle; 841 uint64_t spa_version; 842 char *p; 843 zfs_prop_t resv_prop; 844 char *strval; 845 846 if (p = strchr(argv[0], '/')) 847 *p = '\0'; 848 zpool_handle = zpool_open(g_zfs, argv[0]); 849 if (p != NULL) 850 *p = '/'; 851 if (zpool_handle == NULL) 852 goto error; 853 spa_version = zpool_get_prop_int(zpool_handle, 854 ZPOOL_PROP_VERSION, NULL); 855 zpool_close(zpool_handle); 856 if (spa_version >= SPA_VERSION_REFRESERVATION) 857 resv_prop = ZFS_PROP_REFRESERVATION; 858 else 859 resv_prop = ZFS_PROP_RESERVATION; 860 volsize = zvol_volsize_to_reservation(volsize, props); 861 862 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 863 &strval) != 0) { 864 if (nvlist_add_uint64(props, 865 zfs_prop_to_name(resv_prop), volsize) != 0) { 866 nvlist_free(props); 867 nomem(); 868 } 869 } 870 } 871 872 if (parents && zfs_name_valid(argv[0], type)) { 873 /* 874 * Now create the ancestors of target dataset. If the target 875 * already exists and '-p' option was used we should not 876 * complain. 877 */ 878 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 879 ret = 0; 880 goto error; 881 } 882 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 883 goto error; 884 } 885 886 /* pass to libzfs */ 887 if (zfs_create(g_zfs, argv[0], type, props) != 0) 888 goto error; 889 890 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 891 goto error; 892 893 ret = 0; 894 895 /* 896 * Mount and/or share the new filesystem as appropriate. We provide a 897 * verbose error message to let the user know that their filesystem was 898 * in fact created, even if we failed to mount or share it. 899 * If the user doesn't want the dataset automatically mounted, 900 * then skip the mount/share step altogether. 901 */ 902 if (!nomount && should_auto_mount(zhp)) { 903 if (zfs_mount(zhp, NULL, 0) != 0) { 904 (void) fprintf(stderr, gettext("filesystem " 905 "successfully created, but not mounted\n")); 906 ret = 1; 907 } else if (zfs_share(zhp) != 0) { 908 (void) fprintf(stderr, gettext("filesystem " 909 "successfully created, but not shared\n")); 910 ret = 1; 911 } 912 } 913 914error: 915 if (zhp) 916 zfs_close(zhp); 917 nvlist_free(props); 918 return (ret); 919badusage: 920 nvlist_free(props); 921 usage(B_FALSE); 922 return (2); 923} 924 925/* 926 * zfs destroy [-rRf] <fs, vol> 927 * zfs destroy [-rRd] <snap> 928 * 929 * -r Recursively destroy all children 930 * -R Recursively destroy all dependents, including clones 931 * -f Force unmounting of any dependents 932 * -d If we can't destroy now, mark for deferred destruction 933 * 934 * Destroys the given dataset. By default, it will unmount any filesystems, 935 * and refuse to destroy a dataset that has any dependents. A dependent can 936 * either be a child, or a clone of a child. 937 */ 938typedef struct destroy_cbdata { 939 boolean_t cb_first; 940 boolean_t cb_force; 941 boolean_t cb_recurse; 942 boolean_t cb_error; 943 boolean_t cb_doclones; 944 zfs_handle_t *cb_target; 945 boolean_t cb_defer_destroy; 946 boolean_t cb_verbose; 947 boolean_t cb_parsable; 948 boolean_t cb_dryrun; 949 nvlist_t *cb_nvl; 950 nvlist_t *cb_batchedsnaps; 951 952 /* first snap in contiguous run */ 953 char *cb_firstsnap; 954 /* previous snap in contiguous run */ 955 char *cb_prevsnap; 956 int64_t cb_snapused; 957 char *cb_snapspec; 958 char *cb_bookmark; 959} destroy_cbdata_t; 960 961/* 962 * Check for any dependents based on the '-r' or '-R' flags. 963 */ 964static int 965destroy_check_dependent(zfs_handle_t *zhp, void *data) 966{ 967 destroy_cbdata_t *cbp = data; 968 const char *tname = zfs_get_name(cbp->cb_target); 969 const char *name = zfs_get_name(zhp); 970 971 if (strncmp(tname, name, strlen(tname)) == 0 && 972 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 973 /* 974 * This is a direct descendant, not a clone somewhere else in 975 * the hierarchy. 976 */ 977 if (cbp->cb_recurse) 978 goto out; 979 980 if (cbp->cb_first) { 981 (void) fprintf(stderr, gettext("cannot destroy '%s': " 982 "%s has children\n"), 983 zfs_get_name(cbp->cb_target), 984 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 985 (void) fprintf(stderr, gettext("use '-r' to destroy " 986 "the following datasets:\n")); 987 cbp->cb_first = B_FALSE; 988 cbp->cb_error = B_TRUE; 989 } 990 991 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 992 } else { 993 /* 994 * This is a clone. We only want to report this if the '-r' 995 * wasn't specified, or the target is a snapshot. 996 */ 997 if (!cbp->cb_recurse && 998 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 999 goto out; 1000 1001 if (cbp->cb_first) { 1002 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1003 "%s has dependent clones\n"), 1004 zfs_get_name(cbp->cb_target), 1005 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1006 (void) fprintf(stderr, gettext("use '-R' to destroy " 1007 "the following datasets:\n")); 1008 cbp->cb_first = B_FALSE; 1009 cbp->cb_error = B_TRUE; 1010 cbp->cb_dryrun = B_TRUE; 1011 } 1012 1013 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1014 } 1015 1016out: 1017 zfs_close(zhp); 1018 return (0); 1019} 1020 1021static int 1022destroy_callback(zfs_handle_t *zhp, void *data) 1023{ 1024 destroy_cbdata_t *cb = data; 1025 const char *name = zfs_get_name(zhp); 1026 1027 if (cb->cb_verbose) { 1028 if (cb->cb_parsable) { 1029 (void) printf("destroy\t%s\n", name); 1030 } else if (cb->cb_dryrun) { 1031 (void) printf(gettext("would destroy %s\n"), 1032 name); 1033 } else { 1034 (void) printf(gettext("will destroy %s\n"), 1035 name); 1036 } 1037 } 1038 1039 /* 1040 * Ignore pools (which we've already flagged as an error before getting 1041 * here). 1042 */ 1043 if (strchr(zfs_get_name(zhp), '/') == NULL && 1044 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1045 zfs_close(zhp); 1046 return (0); 1047 } 1048 if (cb->cb_dryrun) { 1049 zfs_close(zhp); 1050 return (0); 1051 } 1052 1053 /* 1054 * We batch up all contiguous snapshots (even of different 1055 * filesystems) and destroy them with one ioctl. We can't 1056 * simply do all snap deletions and then all fs deletions, 1057 * because we must delete a clone before its origin. 1058 */ 1059 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1060 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1061 } else { 1062 int error = zfs_destroy_snaps_nvl(g_zfs, 1063 cb->cb_batchedsnaps, B_FALSE); 1064 fnvlist_free(cb->cb_batchedsnaps); 1065 cb->cb_batchedsnaps = fnvlist_alloc(); 1066 1067 if (error != 0 || 1068 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1069 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1070 zfs_close(zhp); 1071 return (-1); 1072 } 1073 } 1074 1075 zfs_close(zhp); 1076 return (0); 1077} 1078 1079static int 1080destroy_print_cb(zfs_handle_t *zhp, void *arg) 1081{ 1082 destroy_cbdata_t *cb = arg; 1083 const char *name = zfs_get_name(zhp); 1084 int err = 0; 1085 1086 if (nvlist_exists(cb->cb_nvl, name)) { 1087 if (cb->cb_firstsnap == NULL) 1088 cb->cb_firstsnap = strdup(name); 1089 if (cb->cb_prevsnap != NULL) 1090 free(cb->cb_prevsnap); 1091 /* this snap continues the current range */ 1092 cb->cb_prevsnap = strdup(name); 1093 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1094 nomem(); 1095 if (cb->cb_verbose) { 1096 if (cb->cb_parsable) { 1097 (void) printf("destroy\t%s\n", name); 1098 } else if (cb->cb_dryrun) { 1099 (void) printf(gettext("would destroy %s\n"), 1100 name); 1101 } else { 1102 (void) printf(gettext("will destroy %s\n"), 1103 name); 1104 } 1105 } 1106 } else if (cb->cb_firstsnap != NULL) { 1107 /* end of this range */ 1108 uint64_t used = 0; 1109 err = lzc_snaprange_space(cb->cb_firstsnap, 1110 cb->cb_prevsnap, &used); 1111 cb->cb_snapused += used; 1112 free(cb->cb_firstsnap); 1113 cb->cb_firstsnap = NULL; 1114 free(cb->cb_prevsnap); 1115 cb->cb_prevsnap = NULL; 1116 } 1117 zfs_close(zhp); 1118 return (err); 1119} 1120 1121static int 1122destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1123{ 1124 int err = 0; 1125 assert(cb->cb_firstsnap == NULL); 1126 assert(cb->cb_prevsnap == NULL); 1127 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1128 if (cb->cb_firstsnap != NULL) { 1129 uint64_t used = 0; 1130 if (err == 0) { 1131 err = lzc_snaprange_space(cb->cb_firstsnap, 1132 cb->cb_prevsnap, &used); 1133 } 1134 cb->cb_snapused += used; 1135 free(cb->cb_firstsnap); 1136 cb->cb_firstsnap = NULL; 1137 free(cb->cb_prevsnap); 1138 cb->cb_prevsnap = NULL; 1139 } 1140 return (err); 1141} 1142 1143static int 1144snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1145{ 1146 destroy_cbdata_t *cb = arg; 1147 int err = 0; 1148 1149 /* Check for clones. */ 1150 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1151 cb->cb_target = zhp; 1152 cb->cb_first = B_TRUE; 1153 err = zfs_iter_dependents(zhp, B_TRUE, 1154 destroy_check_dependent, cb); 1155 } 1156 1157 if (err == 0) { 1158 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1159 nomem(); 1160 } 1161 zfs_close(zhp); 1162 return (err); 1163} 1164 1165static int 1166gather_snapshots(zfs_handle_t *zhp, void *arg) 1167{ 1168 destroy_cbdata_t *cb = arg; 1169 int err = 0; 1170 1171 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1172 if (err == ENOENT) 1173 err = 0; 1174 if (err != 0) 1175 goto out; 1176 1177 if (cb->cb_verbose) { 1178 err = destroy_print_snapshots(zhp, cb); 1179 if (err != 0) 1180 goto out; 1181 } 1182 1183 if (cb->cb_recurse) 1184 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1185 1186out: 1187 zfs_close(zhp); 1188 return (err); 1189} 1190 1191static int 1192destroy_clones(destroy_cbdata_t *cb) 1193{ 1194 nvpair_t *pair; 1195 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1196 pair != NULL; 1197 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1198 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1199 ZFS_TYPE_SNAPSHOT); 1200 if (zhp != NULL) { 1201 boolean_t defer = cb->cb_defer_destroy; 1202 int err = 0; 1203 1204 /* 1205 * We can't defer destroy non-snapshots, so set it to 1206 * false while destroying the clones. 1207 */ 1208 cb->cb_defer_destroy = B_FALSE; 1209 err = zfs_iter_dependents(zhp, B_FALSE, 1210 destroy_callback, cb); 1211 cb->cb_defer_destroy = defer; 1212 zfs_close(zhp); 1213 if (err != 0) 1214 return (err); 1215 } 1216 } 1217 return (0); 1218} 1219 1220static int 1221zfs_do_destroy(int argc, char **argv) 1222{ 1223 destroy_cbdata_t cb = { 0 }; 1224 int rv = 0; 1225 int err = 0; 1226 int c; 1227 zfs_handle_t *zhp = NULL; 1228 char *at, *pound; 1229 zfs_type_t type = ZFS_TYPE_DATASET; 1230 1231 /* check options */ 1232 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1233 switch (c) { 1234 case 'v': 1235 cb.cb_verbose = B_TRUE; 1236 break; 1237 case 'p': 1238 cb.cb_verbose = B_TRUE; 1239 cb.cb_parsable = B_TRUE; 1240 break; 1241 case 'n': 1242 cb.cb_dryrun = B_TRUE; 1243 break; 1244 case 'd': 1245 cb.cb_defer_destroy = B_TRUE; 1246 type = ZFS_TYPE_SNAPSHOT; 1247 break; 1248 case 'f': 1249 cb.cb_force = B_TRUE; 1250 break; 1251 case 'r': 1252 cb.cb_recurse = B_TRUE; 1253 break; 1254 case 'R': 1255 cb.cb_recurse = B_TRUE; 1256 cb.cb_doclones = B_TRUE; 1257 break; 1258 case '?': 1259 default: 1260 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1261 optopt); 1262 usage(B_FALSE); 1263 } 1264 } 1265 1266 argc -= optind; 1267 argv += optind; 1268 1269 /* check number of arguments */ 1270 if (argc == 0) { 1271 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1272 usage(B_FALSE); 1273 } 1274 if (argc > 1) { 1275 (void) fprintf(stderr, gettext("too many arguments\n")); 1276 usage(B_FALSE); 1277 } 1278 1279 at = strchr(argv[0], '@'); 1280 pound = strchr(argv[0], '#'); 1281 if (at != NULL) { 1282 1283 /* Build the list of snaps to destroy in cb_nvl. */ 1284 cb.cb_nvl = fnvlist_alloc(); 1285 1286 *at = '\0'; 1287 zhp = zfs_open(g_zfs, argv[0], 1288 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1289 if (zhp == NULL) 1290 return (1); 1291 1292 cb.cb_snapspec = at + 1; 1293 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1294 cb.cb_error) { 1295 rv = 1; 1296 goto out; 1297 } 1298 1299 if (nvlist_empty(cb.cb_nvl)) { 1300 (void) fprintf(stderr, gettext("could not find any " 1301 "snapshots to destroy; check snapshot names.\n")); 1302 rv = 1; 1303 goto out; 1304 } 1305 1306 if (cb.cb_verbose) { 1307 char buf[16]; 1308 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1309 if (cb.cb_parsable) { 1310 (void) printf("reclaim\t%llu\n", 1311 cb.cb_snapused); 1312 } else if (cb.cb_dryrun) { 1313 (void) printf(gettext("would reclaim %s\n"), 1314 buf); 1315 } else { 1316 (void) printf(gettext("will reclaim %s\n"), 1317 buf); 1318 } 1319 } 1320 1321 if (!cb.cb_dryrun) { 1322 if (cb.cb_doclones) { 1323 cb.cb_batchedsnaps = fnvlist_alloc(); 1324 err = destroy_clones(&cb); 1325 if (err == 0) { 1326 err = zfs_destroy_snaps_nvl(g_zfs, 1327 cb.cb_batchedsnaps, B_FALSE); 1328 } 1329 if (err != 0) { 1330 rv = 1; 1331 goto out; 1332 } 1333 } 1334 if (err == 0) { 1335 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1336 cb.cb_defer_destroy); 1337 } 1338 } 1339 1340 if (err != 0) 1341 rv = 1; 1342 } else if (pound != NULL) { 1343 int err; 1344 nvlist_t *nvl; 1345 1346 if (cb.cb_dryrun) { 1347 (void) fprintf(stderr, 1348 "dryrun is not supported with bookmark\n"); 1349 return (-1); 1350 } 1351 1352 if (cb.cb_defer_destroy) { 1353 (void) fprintf(stderr, 1354 "defer destroy is not supported with bookmark\n"); 1355 return (-1); 1356 } 1357 1358 if (cb.cb_recurse) { 1359 (void) fprintf(stderr, 1360 "recursive is not supported with bookmark\n"); 1361 return (-1); 1362 } 1363 1364 if (!zfs_bookmark_exists(argv[0])) { 1365 (void) fprintf(stderr, gettext("bookmark '%s' " 1366 "does not exist.\n"), argv[0]); 1367 return (1); 1368 } 1369 1370 nvl = fnvlist_alloc(); 1371 fnvlist_add_boolean(nvl, argv[0]); 1372 1373 err = lzc_destroy_bookmarks(nvl, NULL); 1374 if (err != 0) { 1375 (void) zfs_standard_error(g_zfs, err, 1376 "cannot destroy bookmark"); 1377 } 1378 1379 nvlist_free(cb.cb_nvl); 1380 1381 return (err); 1382 } else { 1383 /* Open the given dataset */ 1384 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1385 return (1); 1386 1387 cb.cb_target = zhp; 1388 1389 /* 1390 * Perform an explicit check for pools before going any further. 1391 */ 1392 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1393 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1394 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1395 "operation does not apply to pools\n"), 1396 zfs_get_name(zhp)); 1397 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1398 "%s' to destroy all datasets in the pool\n"), 1399 zfs_get_name(zhp)); 1400 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1401 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1402 rv = 1; 1403 goto out; 1404 } 1405 1406 /* 1407 * Check for any dependents and/or clones. 1408 */ 1409 cb.cb_first = B_TRUE; 1410 if (!cb.cb_doclones && 1411 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1412 &cb) != 0) { 1413 rv = 1; 1414 goto out; 1415 } 1416 1417 if (cb.cb_error) { 1418 rv = 1; 1419 goto out; 1420 } 1421 1422 cb.cb_batchedsnaps = fnvlist_alloc(); 1423 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1424 &cb) != 0) { 1425 rv = 1; 1426 goto out; 1427 } 1428 1429 /* 1430 * Do the real thing. The callback will close the 1431 * handle regardless of whether it succeeds or not. 1432 */ 1433 err = destroy_callback(zhp, &cb); 1434 zhp = NULL; 1435 if (err == 0) { 1436 err = zfs_destroy_snaps_nvl(g_zfs, 1437 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1438 } 1439 if (err != 0) 1440 rv = 1; 1441 } 1442 1443out: 1444 fnvlist_free(cb.cb_batchedsnaps); 1445 fnvlist_free(cb.cb_nvl); 1446 if (zhp != NULL) 1447 zfs_close(zhp); 1448 return (rv); 1449} 1450 1451static boolean_t 1452is_recvd_column(zprop_get_cbdata_t *cbp) 1453{ 1454 int i; 1455 zfs_get_column_t col; 1456 1457 for (i = 0; i < ZFS_GET_NCOLS && 1458 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1459 if (col == GET_COL_RECVD) 1460 return (B_TRUE); 1461 return (B_FALSE); 1462} 1463 1464/* 1465 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1466 * < all | property[,property]... > < fs | snap | vol > ... 1467 * 1468 * -r recurse over any child datasets 1469 * -H scripted mode. Headers are stripped, and fields are separated 1470 * by tabs instead of spaces. 1471 * -o Set of fields to display. One of "name,property,value, 1472 * received,source". Default is "name,property,value,source". 1473 * "all" is an alias for all five. 1474 * -s Set of sources to allow. One of 1475 * "local,default,inherited,received,temporary,none". Default is 1476 * all six. 1477 * -p Display values in parsable (literal) format. 1478 * 1479 * Prints properties for the given datasets. The user can control which 1480 * columns to display as well as which property types to allow. 1481 */ 1482 1483/* 1484 * Invoked to display the properties for a single dataset. 1485 */ 1486static int 1487get_callback(zfs_handle_t *zhp, void *data) 1488{ 1489 char buf[ZFS_MAXPROPLEN]; 1490 char rbuf[ZFS_MAXPROPLEN]; 1491 zprop_source_t sourcetype; 1492 char source[ZFS_MAXNAMELEN]; 1493 zprop_get_cbdata_t *cbp = data; 1494 nvlist_t *user_props = zfs_get_user_props(zhp); 1495 zprop_list_t *pl = cbp->cb_proplist; 1496 nvlist_t *propval; 1497 char *strval; 1498 char *sourceval; 1499 boolean_t received = is_recvd_column(cbp); 1500 1501 for (; pl != NULL; pl = pl->pl_next) { 1502 char *recvdval = NULL; 1503 /* 1504 * Skip the special fake placeholder. This will also skip over 1505 * the name property when 'all' is specified. 1506 */ 1507 if (pl->pl_prop == ZFS_PROP_NAME && 1508 pl == cbp->cb_proplist) 1509 continue; 1510 1511 if (pl->pl_prop != ZPROP_INVAL) { 1512 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1513 sizeof (buf), &sourcetype, source, 1514 sizeof (source), 1515 cbp->cb_literal) != 0) { 1516 if (pl->pl_all) 1517 continue; 1518 if (!zfs_prop_valid_for_type(pl->pl_prop, 1519 ZFS_TYPE_DATASET)) { 1520 (void) fprintf(stderr, 1521 gettext("No such property '%s'\n"), 1522 zfs_prop_to_name(pl->pl_prop)); 1523 continue; 1524 } 1525 sourcetype = ZPROP_SRC_NONE; 1526 (void) strlcpy(buf, "-", sizeof (buf)); 1527 } 1528 1529 if (received && (zfs_prop_get_recvd(zhp, 1530 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1531 cbp->cb_literal) == 0)) 1532 recvdval = rbuf; 1533 1534 zprop_print_one_property(zfs_get_name(zhp), cbp, 1535 zfs_prop_to_name(pl->pl_prop), 1536 buf, sourcetype, source, recvdval); 1537 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1538 sourcetype = ZPROP_SRC_LOCAL; 1539 1540 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1541 buf, sizeof (buf), cbp->cb_literal) != 0) { 1542 sourcetype = ZPROP_SRC_NONE; 1543 (void) strlcpy(buf, "-", sizeof (buf)); 1544 } 1545 1546 zprop_print_one_property(zfs_get_name(zhp), cbp, 1547 pl->pl_user_prop, buf, sourcetype, source, NULL); 1548 } else if (zfs_prop_written(pl->pl_user_prop)) { 1549 sourcetype = ZPROP_SRC_LOCAL; 1550 1551 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1552 buf, sizeof (buf), cbp->cb_literal) != 0) { 1553 sourcetype = ZPROP_SRC_NONE; 1554 (void) strlcpy(buf, "-", sizeof (buf)); 1555 } 1556 1557 zprop_print_one_property(zfs_get_name(zhp), cbp, 1558 pl->pl_user_prop, buf, sourcetype, source, NULL); 1559 } else { 1560 if (nvlist_lookup_nvlist(user_props, 1561 pl->pl_user_prop, &propval) != 0) { 1562 if (pl->pl_all) 1563 continue; 1564 sourcetype = ZPROP_SRC_NONE; 1565 strval = "-"; 1566 } else { 1567 verify(nvlist_lookup_string(propval, 1568 ZPROP_VALUE, &strval) == 0); 1569 verify(nvlist_lookup_string(propval, 1570 ZPROP_SOURCE, &sourceval) == 0); 1571 1572 if (strcmp(sourceval, 1573 zfs_get_name(zhp)) == 0) { 1574 sourcetype = ZPROP_SRC_LOCAL; 1575 } else if (strcmp(sourceval, 1576 ZPROP_SOURCE_VAL_RECVD) == 0) { 1577 sourcetype = ZPROP_SRC_RECEIVED; 1578 } else { 1579 sourcetype = ZPROP_SRC_INHERITED; 1580 (void) strlcpy(source, 1581 sourceval, sizeof (source)); 1582 } 1583 } 1584 1585 if (received && (zfs_prop_get_recvd(zhp, 1586 pl->pl_user_prop, rbuf, sizeof (rbuf), 1587 cbp->cb_literal) == 0)) 1588 recvdval = rbuf; 1589 1590 zprop_print_one_property(zfs_get_name(zhp), cbp, 1591 pl->pl_user_prop, strval, sourcetype, 1592 source, recvdval); 1593 } 1594 } 1595 1596 return (0); 1597} 1598 1599static int 1600zfs_do_get(int argc, char **argv) 1601{ 1602 zprop_get_cbdata_t cb = { 0 }; 1603 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1604 int types = ZFS_TYPE_DATASET; 1605 char *value, *fields; 1606 int ret = 0; 1607 int limit = 0; 1608 zprop_list_t fake_name = { 0 }; 1609 1610 /* 1611 * Set up default columns and sources. 1612 */ 1613 cb.cb_sources = ZPROP_SRC_ALL; 1614 cb.cb_columns[0] = GET_COL_NAME; 1615 cb.cb_columns[1] = GET_COL_PROPERTY; 1616 cb.cb_columns[2] = GET_COL_VALUE; 1617 cb.cb_columns[3] = GET_COL_SOURCE; 1618 cb.cb_type = ZFS_TYPE_DATASET; 1619 1620 /* check options */ 1621 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1622 switch (c) { 1623 case 'p': 1624 cb.cb_literal = B_TRUE; 1625 break; 1626 case 'd': 1627 limit = parse_depth(optarg, &flags); 1628 break; 1629 case 'r': 1630 flags |= ZFS_ITER_RECURSE; 1631 break; 1632 case 'H': 1633 cb.cb_scripted = B_TRUE; 1634 break; 1635 case ':': 1636 (void) fprintf(stderr, gettext("missing argument for " 1637 "'%c' option\n"), optopt); 1638 usage(B_FALSE); 1639 break; 1640 case 'o': 1641 /* 1642 * Process the set of columns to display. We zero out 1643 * the structure to give us a blank slate. 1644 */ 1645 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1646 i = 0; 1647 while (*optarg != '\0') { 1648 static char *col_subopts[] = 1649 { "name", "property", "value", "received", 1650 "source", "all", NULL }; 1651 1652 if (i == ZFS_GET_NCOLS) { 1653 (void) fprintf(stderr, gettext("too " 1654 "many fields given to -o " 1655 "option\n")); 1656 usage(B_FALSE); 1657 } 1658 1659 switch (getsubopt(&optarg, col_subopts, 1660 &value)) { 1661 case 0: 1662 cb.cb_columns[i++] = GET_COL_NAME; 1663 break; 1664 case 1: 1665 cb.cb_columns[i++] = GET_COL_PROPERTY; 1666 break; 1667 case 2: 1668 cb.cb_columns[i++] = GET_COL_VALUE; 1669 break; 1670 case 3: 1671 cb.cb_columns[i++] = GET_COL_RECVD; 1672 flags |= ZFS_ITER_RECVD_PROPS; 1673 break; 1674 case 4: 1675 cb.cb_columns[i++] = GET_COL_SOURCE; 1676 break; 1677 case 5: 1678 if (i > 0) { 1679 (void) fprintf(stderr, 1680 gettext("\"all\" conflicts " 1681 "with specific fields " 1682 "given to -o option\n")); 1683 usage(B_FALSE); 1684 } 1685 cb.cb_columns[0] = GET_COL_NAME; 1686 cb.cb_columns[1] = GET_COL_PROPERTY; 1687 cb.cb_columns[2] = GET_COL_VALUE; 1688 cb.cb_columns[3] = GET_COL_RECVD; 1689 cb.cb_columns[4] = GET_COL_SOURCE; 1690 flags |= ZFS_ITER_RECVD_PROPS; 1691 i = ZFS_GET_NCOLS; 1692 break; 1693 default: 1694 (void) fprintf(stderr, 1695 gettext("invalid column name " 1696 "'%s'\n"), value); 1697 usage(B_FALSE); 1698 } 1699 } 1700 break; 1701 1702 case 's': 1703 cb.cb_sources = 0; 1704 while (*optarg != '\0') { 1705 static char *source_subopts[] = { 1706 "local", "default", "inherited", 1707 "received", "temporary", "none", 1708 NULL }; 1709 1710 switch (getsubopt(&optarg, source_subopts, 1711 &value)) { 1712 case 0: 1713 cb.cb_sources |= ZPROP_SRC_LOCAL; 1714 break; 1715 case 1: 1716 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1717 break; 1718 case 2: 1719 cb.cb_sources |= ZPROP_SRC_INHERITED; 1720 break; 1721 case 3: 1722 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1723 break; 1724 case 4: 1725 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1726 break; 1727 case 5: 1728 cb.cb_sources |= ZPROP_SRC_NONE; 1729 break; 1730 default: 1731 (void) fprintf(stderr, 1732 gettext("invalid source " 1733 "'%s'\n"), value); 1734 usage(B_FALSE); 1735 } 1736 } 1737 break; 1738 1739 case 't': 1740 types = 0; 1741 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1742 while (*optarg != '\0') { 1743 static char *type_subopts[] = { "filesystem", 1744 "volume", "snapshot", "bookmark", 1745 "all", NULL }; 1746 1747 switch (getsubopt(&optarg, type_subopts, 1748 &value)) { 1749 case 0: 1750 types |= ZFS_TYPE_FILESYSTEM; 1751 break; 1752 case 1: 1753 types |= ZFS_TYPE_VOLUME; 1754 break; 1755 case 2: 1756 types |= ZFS_TYPE_SNAPSHOT; 1757 break; 1758 case 3: 1759 types |= ZFS_TYPE_BOOKMARK; 1760 break; 1761 case 4: 1762 types = ZFS_TYPE_DATASET | 1763 ZFS_TYPE_BOOKMARK; 1764 break; 1765 1766 default: 1767 (void) fprintf(stderr, 1768 gettext("invalid type '%s'\n"), 1769 value); 1770 usage(B_FALSE); 1771 } 1772 } 1773 break; 1774 1775 case '?': 1776 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1777 optopt); 1778 usage(B_FALSE); 1779 } 1780 } 1781 1782 argc -= optind; 1783 argv += optind; 1784 1785 if (argc < 1) { 1786 (void) fprintf(stderr, gettext("missing property " 1787 "argument\n")); 1788 usage(B_FALSE); 1789 } 1790 1791 fields = argv[0]; 1792 1793 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1794 != 0) 1795 usage(B_FALSE); 1796 1797 argc--; 1798 argv++; 1799 1800 /* 1801 * As part of zfs_expand_proplist(), we keep track of the maximum column 1802 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1803 * need to know the maximum name length. However, the user likely did 1804 * not specify 'name' as one of the properties to fetch, so we need to 1805 * make sure we always include at least this property for 1806 * print_get_headers() to work properly. 1807 */ 1808 if (cb.cb_proplist != NULL) { 1809 fake_name.pl_prop = ZFS_PROP_NAME; 1810 fake_name.pl_width = strlen(gettext("NAME")); 1811 fake_name.pl_next = cb.cb_proplist; 1812 cb.cb_proplist = &fake_name; 1813 } 1814 1815 cb.cb_first = B_TRUE; 1816 1817 /* run for each object */ 1818 ret = zfs_for_each(argc, argv, flags, types, NULL, 1819 &cb.cb_proplist, limit, get_callback, &cb); 1820 1821 if (cb.cb_proplist == &fake_name) 1822 zprop_free_list(fake_name.pl_next); 1823 else 1824 zprop_free_list(cb.cb_proplist); 1825 1826 return (ret); 1827} 1828 1829/* 1830 * inherit [-rS] <property> <fs|vol> ... 1831 * 1832 * -r Recurse over all children 1833 * -S Revert to received value, if any 1834 * 1835 * For each dataset specified on the command line, inherit the given property 1836 * from its parent. Inheriting a property at the pool level will cause it to 1837 * use the default value. The '-r' flag will recurse over all children, and is 1838 * useful for setting a property on a hierarchy-wide basis, regardless of any 1839 * local modifications for each dataset. 1840 */ 1841 1842typedef struct inherit_cbdata { 1843 const char *cb_propname; 1844 boolean_t cb_received; 1845} inherit_cbdata_t; 1846 1847static int 1848inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1849{ 1850 inherit_cbdata_t *cb = data; 1851 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1852 1853 /* 1854 * If we're doing it recursively, then ignore properties that 1855 * are not valid for this type of dataset. 1856 */ 1857 if (prop != ZPROP_INVAL && 1858 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1859 return (0); 1860 1861 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1862} 1863 1864static int 1865inherit_cb(zfs_handle_t *zhp, void *data) 1866{ 1867 inherit_cbdata_t *cb = data; 1868 1869 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1870} 1871 1872static int 1873zfs_do_inherit(int argc, char **argv) 1874{ 1875 int c; 1876 zfs_prop_t prop; 1877 inherit_cbdata_t cb = { 0 }; 1878 char *propname; 1879 int ret = 0; 1880 int flags = 0; 1881 boolean_t received = B_FALSE; 1882 1883 /* check options */ 1884 while ((c = getopt(argc, argv, "rS")) != -1) { 1885 switch (c) { 1886 case 'r': 1887 flags |= ZFS_ITER_RECURSE; 1888 break; 1889 case 'S': 1890 received = B_TRUE; 1891 break; 1892 case '?': 1893 default: 1894 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1895 optopt); 1896 usage(B_FALSE); 1897 } 1898 } 1899 1900 argc -= optind; 1901 argv += optind; 1902 1903 /* check number of arguments */ 1904 if (argc < 1) { 1905 (void) fprintf(stderr, gettext("missing property argument\n")); 1906 usage(B_FALSE); 1907 } 1908 if (argc < 2) { 1909 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1910 usage(B_FALSE); 1911 } 1912 1913 propname = argv[0]; 1914 argc--; 1915 argv++; 1916 1917 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1918 if (zfs_prop_readonly(prop)) { 1919 (void) fprintf(stderr, gettext( 1920 "%s property is read-only\n"), 1921 propname); 1922 return (1); 1923 } 1924 if (!zfs_prop_inheritable(prop) && !received) { 1925 (void) fprintf(stderr, gettext("'%s' property cannot " 1926 "be inherited\n"), propname); 1927 if (prop == ZFS_PROP_QUOTA || 1928 prop == ZFS_PROP_RESERVATION || 1929 prop == ZFS_PROP_REFQUOTA || 1930 prop == ZFS_PROP_REFRESERVATION) { 1931 (void) fprintf(stderr, gettext("use 'zfs set " 1932 "%s=none' to clear\n"), propname); 1933 (void) fprintf(stderr, gettext("use 'zfs " 1934 "inherit -S %s' to revert to received " 1935 "value\n"), propname); 1936 } 1937 return (1); 1938 } 1939 if (received && (prop == ZFS_PROP_VOLSIZE || 1940 prop == ZFS_PROP_VERSION)) { 1941 (void) fprintf(stderr, gettext("'%s' property cannot " 1942 "be reverted to a received value\n"), propname); 1943 return (1); 1944 } 1945 } else if (!zfs_prop_user(propname)) { 1946 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1947 propname); 1948 usage(B_FALSE); 1949 } 1950 1951 cb.cb_propname = propname; 1952 cb.cb_received = received; 1953 1954 if (flags & ZFS_ITER_RECURSE) { 1955 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1956 NULL, NULL, 0, inherit_recurse_cb, &cb); 1957 } else { 1958 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1959 NULL, NULL, 0, inherit_cb, &cb); 1960 } 1961 1962 return (ret); 1963} 1964 1965typedef struct upgrade_cbdata { 1966 uint64_t cb_numupgraded; 1967 uint64_t cb_numsamegraded; 1968 uint64_t cb_numfailed; 1969 uint64_t cb_version; 1970 boolean_t cb_newer; 1971 boolean_t cb_foundone; 1972 char cb_lastfs[ZFS_MAXNAMELEN]; 1973} upgrade_cbdata_t; 1974 1975static int 1976same_pool(zfs_handle_t *zhp, const char *name) 1977{ 1978 int len1 = strcspn(name, "/@"); 1979 const char *zhname = zfs_get_name(zhp); 1980 int len2 = strcspn(zhname, "/@"); 1981 1982 if (len1 != len2) 1983 return (B_FALSE); 1984 return (strncmp(name, zhname, len1) == 0); 1985} 1986 1987static int 1988upgrade_list_callback(zfs_handle_t *zhp, void *data) 1989{ 1990 upgrade_cbdata_t *cb = data; 1991 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1992 1993 /* list if it's old/new */ 1994 if ((!cb->cb_newer && version < ZPL_VERSION) || 1995 (cb->cb_newer && version > ZPL_VERSION)) { 1996 char *str; 1997 if (cb->cb_newer) { 1998 str = gettext("The following filesystems are " 1999 "formatted using a newer software version and\n" 2000 "cannot be accessed on the current system.\n\n"); 2001 } else { 2002 str = gettext("The following filesystems are " 2003 "out of date, and can be upgraded. After being\n" 2004 "upgraded, these filesystems (and any 'zfs send' " 2005 "streams generated from\n" 2006 "subsequent snapshots) will no longer be " 2007 "accessible by older software versions.\n\n"); 2008 } 2009 2010 if (!cb->cb_foundone) { 2011 (void) puts(str); 2012 (void) printf(gettext("VER FILESYSTEM\n")); 2013 (void) printf(gettext("--- ------------\n")); 2014 cb->cb_foundone = B_TRUE; 2015 } 2016 2017 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2018 } 2019 2020 return (0); 2021} 2022 2023static int 2024upgrade_set_callback(zfs_handle_t *zhp, void *data) 2025{ 2026 upgrade_cbdata_t *cb = data; 2027 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2028 int needed_spa_version; 2029 int spa_version; 2030 2031 if (zfs_spa_version(zhp, &spa_version) < 0) 2032 return (-1); 2033 2034 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2035 2036 if (needed_spa_version < 0) 2037 return (-1); 2038 2039 if (spa_version < needed_spa_version) { 2040 /* can't upgrade */ 2041 (void) printf(gettext("%s: can not be " 2042 "upgraded; the pool version needs to first " 2043 "be upgraded\nto version %d\n\n"), 2044 zfs_get_name(zhp), needed_spa_version); 2045 cb->cb_numfailed++; 2046 return (0); 2047 } 2048 2049 /* upgrade */ 2050 if (version < cb->cb_version) { 2051 char verstr[16]; 2052 (void) snprintf(verstr, sizeof (verstr), 2053 "%llu", cb->cb_version); 2054 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2055 /* 2056 * If they did "zfs upgrade -a", then we could 2057 * be doing ioctls to different pools. We need 2058 * to log this history once to each pool, and bypass 2059 * the normal history logging that happens in main(). 2060 */ 2061 (void) zpool_log_history(g_zfs, history_str); 2062 log_history = B_FALSE; 2063 } 2064 if (zfs_prop_set(zhp, "version", verstr) == 0) 2065 cb->cb_numupgraded++; 2066 else 2067 cb->cb_numfailed++; 2068 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2069 } else if (version > cb->cb_version) { 2070 /* can't downgrade */ 2071 (void) printf(gettext("%s: can not be downgraded; " 2072 "it is already at version %u\n"), 2073 zfs_get_name(zhp), version); 2074 cb->cb_numfailed++; 2075 } else { 2076 cb->cb_numsamegraded++; 2077 } 2078 return (0); 2079} 2080 2081/* 2082 * zfs upgrade 2083 * zfs upgrade -v 2084 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2085 */ 2086static int 2087zfs_do_upgrade(int argc, char **argv) 2088{ 2089 boolean_t all = B_FALSE; 2090 boolean_t showversions = B_FALSE; 2091 int ret = 0; 2092 upgrade_cbdata_t cb = { 0 }; 2093 int c; 2094 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2095 2096 /* check options */ 2097 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2098 switch (c) { 2099 case 'r': 2100 flags |= ZFS_ITER_RECURSE; 2101 break; 2102 case 'v': 2103 showversions = B_TRUE; 2104 break; 2105 case 'V': 2106 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2107 optarg, &cb.cb_version) != 0) { 2108 (void) fprintf(stderr, 2109 gettext("invalid version %s\n"), optarg); 2110 usage(B_FALSE); 2111 } 2112 break; 2113 case 'a': 2114 all = B_TRUE; 2115 break; 2116 case '?': 2117 default: 2118 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2119 optopt); 2120 usage(B_FALSE); 2121 } 2122 } 2123 2124 argc -= optind; 2125 argv += optind; 2126 2127 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2128 usage(B_FALSE); 2129 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2130 cb.cb_version || argc)) 2131 usage(B_FALSE); 2132 if ((all || argc) && (showversions)) 2133 usage(B_FALSE); 2134 if (all && argc) 2135 usage(B_FALSE); 2136 2137 if (showversions) { 2138 /* Show info on available versions. */ 2139 (void) printf(gettext("The following filesystem versions are " 2140 "supported:\n\n")); 2141 (void) printf(gettext("VER DESCRIPTION\n")); 2142 (void) printf("--- -----------------------------------------" 2143 "---------------\n"); 2144 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2145 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2146 (void) printf(gettext(" 3 Case insensitive and filesystem " 2147 "user identifier (FUID)\n")); 2148 (void) printf(gettext(" 4 userquota, groupquota " 2149 "properties\n")); 2150 (void) printf(gettext(" 5 System attributes\n")); 2151 (void) printf(gettext("\nFor more information on a particular " 2152 "version, including supported releases,\n")); 2153 (void) printf("see the ZFS Administration Guide.\n\n"); 2154 ret = 0; 2155 } else if (argc || all) { 2156 /* Upgrade filesystems */ 2157 if (cb.cb_version == 0) 2158 cb.cb_version = ZPL_VERSION; 2159 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2160 NULL, NULL, 0, upgrade_set_callback, &cb); 2161 (void) printf(gettext("%llu filesystems upgraded\n"), 2162 cb.cb_numupgraded); 2163 if (cb.cb_numsamegraded) { 2164 (void) printf(gettext("%llu filesystems already at " 2165 "this version\n"), 2166 cb.cb_numsamegraded); 2167 } 2168 if (cb.cb_numfailed != 0) 2169 ret = 1; 2170 } else { 2171 /* List old-version filesytems */ 2172 boolean_t found; 2173 (void) printf(gettext("This system is currently running " 2174 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2175 2176 flags |= ZFS_ITER_RECURSE; 2177 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2178 NULL, NULL, 0, upgrade_list_callback, &cb); 2179 2180 found = cb.cb_foundone; 2181 cb.cb_foundone = B_FALSE; 2182 cb.cb_newer = B_TRUE; 2183 2184 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2185 NULL, NULL, 0, upgrade_list_callback, &cb); 2186 2187 if (!cb.cb_foundone && !found) { 2188 (void) printf(gettext("All filesystems are " 2189 "formatted with the current version.\n")); 2190 } 2191 } 2192 2193 return (ret); 2194} 2195 2196/* 2197 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2198 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2199 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2200 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2201 * 2202 * -H Scripted mode; elide headers and separate columns by tabs. 2203 * -i Translate SID to POSIX ID. 2204 * -n Print numeric ID instead of user/group name. 2205 * -o Control which fields to display. 2206 * -p Use exact (parsable) numeric output. 2207 * -s Specify sort columns, descending order. 2208 * -S Specify sort columns, ascending order. 2209 * -t Control which object types to display. 2210 * 2211 * Displays space consumed by, and quotas on, each user in the specified 2212 * filesystem or snapshot. 2213 */ 2214 2215/* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2216enum us_field_types { 2217 USFIELD_TYPE, 2218 USFIELD_NAME, 2219 USFIELD_USED, 2220 USFIELD_QUOTA 2221}; 2222static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2223static char *us_field_names[] = { "type", "name", "used", "quota" }; 2224#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2225 2226#define USTYPE_PSX_GRP (1 << 0) 2227#define USTYPE_PSX_USR (1 << 1) 2228#define USTYPE_SMB_GRP (1 << 2) 2229#define USTYPE_SMB_USR (1 << 3) 2230#define USTYPE_ALL \ 2231 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2232 2233static int us_type_bits[] = { 2234 USTYPE_PSX_GRP, 2235 USTYPE_PSX_USR, 2236 USTYPE_SMB_GRP, 2237 USTYPE_SMB_USR, 2238 USTYPE_ALL 2239}; 2240static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2241 "smbuser", "all" }; 2242 2243typedef struct us_node { 2244 nvlist_t *usn_nvl; 2245 uu_avl_node_t usn_avlnode; 2246 uu_list_node_t usn_listnode; 2247} us_node_t; 2248 2249typedef struct us_cbdata { 2250 nvlist_t **cb_nvlp; 2251 uu_avl_pool_t *cb_avl_pool; 2252 uu_avl_t *cb_avl; 2253 boolean_t cb_numname; 2254 boolean_t cb_nicenum; 2255 boolean_t cb_sid2posix; 2256 zfs_userquota_prop_t cb_prop; 2257 zfs_sort_column_t *cb_sortcol; 2258 size_t cb_width[USFIELD_LAST]; 2259} us_cbdata_t; 2260 2261static boolean_t us_populated = B_FALSE; 2262 2263typedef struct { 2264 zfs_sort_column_t *si_sortcol; 2265 boolean_t si_numname; 2266} us_sort_info_t; 2267 2268static int 2269us_field_index(char *field) 2270{ 2271 int i; 2272 2273 for (i = 0; i < USFIELD_LAST; i++) { 2274 if (strcmp(field, us_field_names[i]) == 0) 2275 return (i); 2276 } 2277 2278 return (-1); 2279} 2280 2281static int 2282us_compare(const void *larg, const void *rarg, void *unused) 2283{ 2284 const us_node_t *l = larg; 2285 const us_node_t *r = rarg; 2286 us_sort_info_t *si = (us_sort_info_t *)unused; 2287 zfs_sort_column_t *sortcol = si->si_sortcol; 2288 boolean_t numname = si->si_numname; 2289 nvlist_t *lnvl = l->usn_nvl; 2290 nvlist_t *rnvl = r->usn_nvl; 2291 int rc = 0; 2292 boolean_t lvb, rvb; 2293 2294 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2295 char *lvstr = ""; 2296 char *rvstr = ""; 2297 uint32_t lv32 = 0; 2298 uint32_t rv32 = 0; 2299 uint64_t lv64 = 0; 2300 uint64_t rv64 = 0; 2301 zfs_prop_t prop = sortcol->sc_prop; 2302 const char *propname = NULL; 2303 boolean_t reverse = sortcol->sc_reverse; 2304 2305 switch (prop) { 2306 case ZFS_PROP_TYPE: 2307 propname = "type"; 2308 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2309 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2310 if (rv32 != lv32) 2311 rc = (rv32 < lv32) ? 1 : -1; 2312 break; 2313 case ZFS_PROP_NAME: 2314 propname = "name"; 2315 if (numname) { 2316 (void) nvlist_lookup_uint64(lnvl, propname, 2317 &lv64); 2318 (void) nvlist_lookup_uint64(rnvl, propname, 2319 &rv64); 2320 if (rv64 != lv64) 2321 rc = (rv64 < lv64) ? 1 : -1; 2322 } else { 2323 (void) nvlist_lookup_string(lnvl, propname, 2324 &lvstr); 2325 (void) nvlist_lookup_string(rnvl, propname, 2326 &rvstr); 2327 rc = strcmp(lvstr, rvstr); 2328 } 2329 break; 2330 case ZFS_PROP_USED: 2331 case ZFS_PROP_QUOTA: 2332 if (!us_populated) 2333 break; 2334 if (prop == ZFS_PROP_USED) 2335 propname = "used"; 2336 else 2337 propname = "quota"; 2338 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2339 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2340 if (rv64 != lv64) 2341 rc = (rv64 < lv64) ? 1 : -1; 2342 break; 2343 } 2344 2345 if (rc != 0) { 2346 if (rc < 0) 2347 return (reverse ? 1 : -1); 2348 else 2349 return (reverse ? -1 : 1); 2350 } 2351 } 2352 2353 /* 2354 * If entries still seem to be the same, check if they are of the same 2355 * type (smbentity is added only if we are doing SID to POSIX ID 2356 * translation where we can have duplicate type/name combinations). 2357 */ 2358 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2359 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2360 lvb != rvb) 2361 return (lvb < rvb ? -1 : 1); 2362 2363 return (0); 2364} 2365 2366static inline const char * 2367us_type2str(unsigned field_type) 2368{ 2369 switch (field_type) { 2370 case USTYPE_PSX_USR: 2371 return ("POSIX User"); 2372 case USTYPE_PSX_GRP: 2373 return ("POSIX Group"); 2374 case USTYPE_SMB_USR: 2375 return ("SMB User"); 2376 case USTYPE_SMB_GRP: 2377 return ("SMB Group"); 2378 default: 2379 return ("Undefined"); 2380 } 2381} 2382 2383static int 2384userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2385{ 2386 us_cbdata_t *cb = (us_cbdata_t *)arg; 2387 zfs_userquota_prop_t prop = cb->cb_prop; 2388 char *name = NULL; 2389 char *propname; 2390 char sizebuf[32]; 2391 us_node_t *node; 2392 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2393 uu_avl_t *avl = cb->cb_avl; 2394 uu_avl_index_t idx; 2395 nvlist_t *props; 2396 us_node_t *n; 2397 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2398 unsigned type; 2399 const char *typestr; 2400 size_t namelen; 2401 size_t typelen; 2402 size_t sizelen; 2403 int typeidx, nameidx, sizeidx; 2404 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2405 boolean_t smbentity = B_FALSE; 2406 2407 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2408 nomem(); 2409 node = safe_malloc(sizeof (us_node_t)); 2410 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2411 node->usn_nvl = props; 2412 2413 if (domain != NULL && domain[0] != '\0') { 2414 /* SMB */ 2415 char sid[ZFS_MAXNAMELEN + 32]; 2416 uid_t id; 2417#ifdef sun 2418 int err; 2419 int flag = IDMAP_REQ_FLG_USE_CACHE; 2420#endif 2421 2422 smbentity = B_TRUE; 2423 2424 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2425 2426 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2427 type = USTYPE_SMB_GRP; 2428#ifdef sun 2429 err = sid_to_id(sid, B_FALSE, &id); 2430#endif 2431 } else { 2432 type = USTYPE_SMB_USR; 2433#ifdef sun 2434 err = sid_to_id(sid, B_TRUE, &id); 2435#endif 2436 } 2437 2438#ifdef sun 2439 if (err == 0) { 2440 rid = id; 2441 if (!cb->cb_sid2posix) { 2442 if (type == USTYPE_SMB_USR) { 2443 (void) idmap_getwinnamebyuid(rid, flag, 2444 &name, NULL); 2445 } else { 2446 (void) idmap_getwinnamebygid(rid, flag, 2447 &name, NULL); 2448 } 2449 if (name == NULL) 2450 name = sid; 2451 } 2452 } 2453#endif 2454 } 2455 2456 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2457 /* POSIX or -i */ 2458 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2459 type = USTYPE_PSX_GRP; 2460 if (!cb->cb_numname) { 2461 struct group *g; 2462 2463 if ((g = getgrgid(rid)) != NULL) 2464 name = g->gr_name; 2465 } 2466 } else { 2467 type = USTYPE_PSX_USR; 2468 if (!cb->cb_numname) { 2469 struct passwd *p; 2470 2471 if ((p = getpwuid(rid)) != NULL) 2472 name = p->pw_name; 2473 } 2474 } 2475 } 2476 2477 /* 2478 * Make sure that the type/name combination is unique when doing 2479 * SID to POSIX ID translation (hence changing the type from SMB to 2480 * POSIX). 2481 */ 2482 if (cb->cb_sid2posix && 2483 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2484 nomem(); 2485 2486 /* Calculate/update width of TYPE field */ 2487 typestr = us_type2str(type); 2488 typelen = strlen(gettext(typestr)); 2489 typeidx = us_field_index("type"); 2490 if (typelen > cb->cb_width[typeidx]) 2491 cb->cb_width[typeidx] = typelen; 2492 if (nvlist_add_uint32(props, "type", type) != 0) 2493 nomem(); 2494 2495 /* Calculate/update width of NAME field */ 2496 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2497 if (nvlist_add_uint64(props, "name", rid) != 0) 2498 nomem(); 2499 namelen = snprintf(NULL, 0, "%u", rid); 2500 } else { 2501 if (nvlist_add_string(props, "name", name) != 0) 2502 nomem(); 2503 namelen = strlen(name); 2504 } 2505 nameidx = us_field_index("name"); 2506 if (namelen > cb->cb_width[nameidx]) 2507 cb->cb_width[nameidx] = namelen; 2508 2509 /* 2510 * Check if this type/name combination is in the list and update it; 2511 * otherwise add new node to the list. 2512 */ 2513 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2514 uu_avl_insert(avl, node, idx); 2515 } else { 2516 nvlist_free(props); 2517 free(node); 2518 node = n; 2519 props = node->usn_nvl; 2520 } 2521 2522 /* Calculate/update width of USED/QUOTA fields */ 2523 if (cb->cb_nicenum) 2524 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2525 else 2526 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2527 sizelen = strlen(sizebuf); 2528 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2529 propname = "used"; 2530 if (!nvlist_exists(props, "quota")) 2531 (void) nvlist_add_uint64(props, "quota", 0); 2532 } else { 2533 propname = "quota"; 2534 if (!nvlist_exists(props, "used")) 2535 (void) nvlist_add_uint64(props, "used", 0); 2536 } 2537 sizeidx = us_field_index(propname); 2538 if (sizelen > cb->cb_width[sizeidx]) 2539 cb->cb_width[sizeidx] = sizelen; 2540 2541 if (nvlist_add_uint64(props, propname, space) != 0) 2542 nomem(); 2543 2544 return (0); 2545} 2546 2547static void 2548print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2549 size_t *width, us_node_t *node) 2550{ 2551 nvlist_t *nvl = node->usn_nvl; 2552 char valstr[ZFS_MAXNAMELEN]; 2553 boolean_t first = B_TRUE; 2554 int cfield = 0; 2555 int field; 2556 uint32_t ustype; 2557 2558 /* Check type */ 2559 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2560 if (!(ustype & types)) 2561 return; 2562 2563 while ((field = fields[cfield]) != USFIELD_LAST) { 2564 nvpair_t *nvp = NULL; 2565 data_type_t type; 2566 uint32_t val32; 2567 uint64_t val64; 2568 char *strval = NULL; 2569 2570 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2571 if (strcmp(nvpair_name(nvp), 2572 us_field_names[field]) == 0) 2573 break; 2574 } 2575 2576 type = nvpair_type(nvp); 2577 switch (type) { 2578 case DATA_TYPE_UINT32: 2579 (void) nvpair_value_uint32(nvp, &val32); 2580 break; 2581 case DATA_TYPE_UINT64: 2582 (void) nvpair_value_uint64(nvp, &val64); 2583 break; 2584 case DATA_TYPE_STRING: 2585 (void) nvpair_value_string(nvp, &strval); 2586 break; 2587 default: 2588 (void) fprintf(stderr, "invalid data type\n"); 2589 } 2590 2591 switch (field) { 2592 case USFIELD_TYPE: 2593 strval = (char *)us_type2str(val32); 2594 break; 2595 case USFIELD_NAME: 2596 if (type == DATA_TYPE_UINT64) { 2597 (void) sprintf(valstr, "%llu", val64); 2598 strval = valstr; 2599 } 2600 break; 2601 case USFIELD_USED: 2602 case USFIELD_QUOTA: 2603 if (type == DATA_TYPE_UINT64) { 2604 if (parsable) { 2605 (void) sprintf(valstr, "%llu", val64); 2606 } else { 2607 zfs_nicenum(val64, valstr, 2608 sizeof (valstr)); 2609 } 2610 if (field == USFIELD_QUOTA && 2611 strcmp(valstr, "0") == 0) 2612 strval = "none"; 2613 else 2614 strval = valstr; 2615 } 2616 break; 2617 } 2618 2619 if (!first) { 2620 if (scripted) 2621 (void) printf("\t"); 2622 else 2623 (void) printf(" "); 2624 } 2625 if (scripted) 2626 (void) printf("%s", strval); 2627 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2628 (void) printf("%-*s", width[field], strval); 2629 else 2630 (void) printf("%*s", width[field], strval); 2631 2632 first = B_FALSE; 2633 cfield++; 2634 } 2635 2636 (void) printf("\n"); 2637} 2638 2639static void 2640print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2641 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2642{ 2643 us_node_t *node; 2644 const char *col; 2645 int cfield = 0; 2646 int field; 2647 2648 if (!scripted) { 2649 boolean_t first = B_TRUE; 2650 2651 while ((field = fields[cfield]) != USFIELD_LAST) { 2652 col = gettext(us_field_hdr[field]); 2653 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2654 (void) printf(first ? "%-*s" : " %-*s", 2655 width[field], col); 2656 } else { 2657 (void) printf(first ? "%*s" : " %*s", 2658 width[field], col); 2659 } 2660 first = B_FALSE; 2661 cfield++; 2662 } 2663 (void) printf("\n"); 2664 } 2665 2666 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2667 print_us_node(scripted, parsable, fields, types, width, node); 2668 if (rmnode) 2669 nvlist_free(node->usn_nvl); 2670 } 2671} 2672 2673static int 2674zfs_do_userspace(int argc, char **argv) 2675{ 2676 zfs_handle_t *zhp; 2677 zfs_userquota_prop_t p; 2678 2679 uu_avl_pool_t *avl_pool; 2680 uu_avl_t *avl_tree; 2681 uu_avl_walk_t *walk; 2682 char *delim; 2683 char deffields[] = "type,name,used,quota"; 2684 char *ofield = NULL; 2685 char *tfield = NULL; 2686 int cfield = 0; 2687 int fields[256]; 2688 int i; 2689 boolean_t scripted = B_FALSE; 2690 boolean_t prtnum = B_FALSE; 2691 boolean_t parsable = B_FALSE; 2692 boolean_t sid2posix = B_FALSE; 2693 int ret = 0; 2694 int c; 2695 zfs_sort_column_t *sortcol = NULL; 2696 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2697 us_cbdata_t cb; 2698 us_node_t *node; 2699 us_node_t *rmnode; 2700 uu_list_pool_t *listpool; 2701 uu_list_t *list; 2702 uu_avl_index_t idx = 0; 2703 uu_list_index_t idx2 = 0; 2704 2705 if (argc < 2) 2706 usage(B_FALSE); 2707 2708 if (strcmp(argv[0], "groupspace") == 0) 2709 /* Toggle default group types */ 2710 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2711 2712 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2713 switch (c) { 2714 case 'n': 2715 prtnum = B_TRUE; 2716 break; 2717 case 'H': 2718 scripted = B_TRUE; 2719 break; 2720 case 'p': 2721 parsable = B_TRUE; 2722 break; 2723 case 'o': 2724 ofield = optarg; 2725 break; 2726 case 's': 2727 case 'S': 2728 if (zfs_add_sort_column(&sortcol, optarg, 2729 c == 's' ? B_FALSE : B_TRUE) != 0) { 2730 (void) fprintf(stderr, 2731 gettext("invalid field '%s'\n"), optarg); 2732 usage(B_FALSE); 2733 } 2734 break; 2735 case 't': 2736 tfield = optarg; 2737 break; 2738 case 'i': 2739 sid2posix = B_TRUE; 2740 break; 2741 case ':': 2742 (void) fprintf(stderr, gettext("missing argument for " 2743 "'%c' option\n"), optopt); 2744 usage(B_FALSE); 2745 break; 2746 case '?': 2747 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2748 optopt); 2749 usage(B_FALSE); 2750 } 2751 } 2752 2753 argc -= optind; 2754 argv += optind; 2755 2756 if (argc < 1) { 2757 (void) fprintf(stderr, gettext("missing dataset name\n")); 2758 usage(B_FALSE); 2759 } 2760 if (argc > 1) { 2761 (void) fprintf(stderr, gettext("too many arguments\n")); 2762 usage(B_FALSE); 2763 } 2764 2765 /* Use default output fields if not specified using -o */ 2766 if (ofield == NULL) 2767 ofield = deffields; 2768 do { 2769 if ((delim = strchr(ofield, ',')) != NULL) 2770 *delim = '\0'; 2771 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2772 (void) fprintf(stderr, gettext("invalid type '%s' " 2773 "for -o option\n"), ofield); 2774 return (-1); 2775 } 2776 if (delim != NULL) 2777 ofield = delim + 1; 2778 } while (delim != NULL); 2779 fields[cfield] = USFIELD_LAST; 2780 2781 /* Override output types (-t option) */ 2782 if (tfield != NULL) { 2783 types = 0; 2784 2785 do { 2786 boolean_t found = B_FALSE; 2787 2788 if ((delim = strchr(tfield, ',')) != NULL) 2789 *delim = '\0'; 2790 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2791 i++) { 2792 if (strcmp(tfield, us_type_names[i]) == 0) { 2793 found = B_TRUE; 2794 types |= us_type_bits[i]; 2795 break; 2796 } 2797 } 2798 if (!found) { 2799 (void) fprintf(stderr, gettext("invalid type " 2800 "'%s' for -t option\n"), tfield); 2801 return (-1); 2802 } 2803 if (delim != NULL) 2804 tfield = delim + 1; 2805 } while (delim != NULL); 2806 } 2807 2808 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2809 return (1); 2810 2811 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2812 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2813 nomem(); 2814 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2815 nomem(); 2816 2817 /* Always add default sorting columns */ 2818 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2819 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2820 2821 cb.cb_sortcol = sortcol; 2822 cb.cb_numname = prtnum; 2823 cb.cb_nicenum = !parsable; 2824 cb.cb_avl_pool = avl_pool; 2825 cb.cb_avl = avl_tree; 2826 cb.cb_sid2posix = sid2posix; 2827 2828 for (i = 0; i < USFIELD_LAST; i++) 2829 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2830 2831 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2832 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2833 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2834 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2835 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2836 continue; 2837 cb.cb_prop = p; 2838 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2839 return (ret); 2840 } 2841 2842 /* Sort the list */ 2843 if ((node = uu_avl_first(avl_tree)) == NULL) 2844 return (0); 2845 2846 us_populated = B_TRUE; 2847 2848 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2849 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2850 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2851 uu_list_node_init(node, &node->usn_listnode, listpool); 2852 2853 while (node != NULL) { 2854 rmnode = node; 2855 node = uu_avl_next(avl_tree, node); 2856 uu_avl_remove(avl_tree, rmnode); 2857 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2858 uu_list_insert(list, rmnode, idx2); 2859 } 2860 2861 for (node = uu_list_first(list); node != NULL; 2862 node = uu_list_next(list, node)) { 2863 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2864 2865 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2866 uu_avl_insert(avl_tree, node, idx); 2867 } 2868 2869 uu_list_destroy(list); 2870 uu_list_pool_destroy(listpool); 2871 2872 /* Print and free node nvlist memory */ 2873 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2874 cb.cb_avl); 2875 2876 zfs_free_sort_columns(sortcol); 2877 2878 /* Clean up the AVL tree */ 2879 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2880 nomem(); 2881 2882 while ((node = uu_avl_walk_next(walk)) != NULL) { 2883 uu_avl_remove(cb.cb_avl, node); 2884 free(node); 2885 } 2886 2887 uu_avl_walk_end(walk); 2888 uu_avl_destroy(avl_tree); 2889 uu_avl_pool_destroy(avl_pool); 2890 2891 return (ret); 2892} 2893 2894/* 2895 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2896 * [-t type[,...]] [filesystem|volume|snapshot] ... 2897 * 2898 * -H Scripted mode; elide headers and separate columns by tabs. 2899 * -p Display values in parsable (literal) format. 2900 * -r Recurse over all children. 2901 * -d Limit recursion by depth. 2902 * -o Control which fields to display. 2903 * -s Specify sort columns, descending order. 2904 * -S Specify sort columns, ascending order. 2905 * -t Control which object types to display. 2906 * 2907 * When given no arguments, list all filesystems in the system. 2908 * Otherwise, list the specified datasets, optionally recursing down them if 2909 * '-r' is specified. 2910 */ 2911typedef struct list_cbdata { 2912 boolean_t cb_first; 2913 boolean_t cb_literal; 2914 boolean_t cb_scripted; 2915 zprop_list_t *cb_proplist; 2916} list_cbdata_t; 2917 2918/* 2919 * Given a list of columns to display, output appropriate headers for each one. 2920 */ 2921static void 2922print_header(list_cbdata_t *cb) 2923{ 2924 zprop_list_t *pl = cb->cb_proplist; 2925 char headerbuf[ZFS_MAXPROPLEN]; 2926 const char *header; 2927 int i; 2928 boolean_t first = B_TRUE; 2929 boolean_t right_justify; 2930 2931 for (; pl != NULL; pl = pl->pl_next) { 2932 if (!first) { 2933 (void) printf(" "); 2934 } else { 2935 first = B_FALSE; 2936 } 2937 2938 right_justify = B_FALSE; 2939 if (pl->pl_prop != ZPROP_INVAL) { 2940 header = zfs_prop_column_name(pl->pl_prop); 2941 right_justify = zfs_prop_align_right(pl->pl_prop); 2942 } else { 2943 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2944 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2945 headerbuf[i] = '\0'; 2946 header = headerbuf; 2947 } 2948 2949 if (pl->pl_next == NULL && !right_justify) 2950 (void) printf("%s", header); 2951 else if (right_justify) 2952 (void) printf("%*s", pl->pl_width, header); 2953 else 2954 (void) printf("%-*s", pl->pl_width, header); 2955 } 2956 2957 (void) printf("\n"); 2958} 2959 2960/* 2961 * Given a dataset and a list of fields, print out all the properties according 2962 * to the described layout. 2963 */ 2964static void 2965print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2966{ 2967 zprop_list_t *pl = cb->cb_proplist; 2968 boolean_t first = B_TRUE; 2969 char property[ZFS_MAXPROPLEN]; 2970 nvlist_t *userprops = zfs_get_user_props(zhp); 2971 nvlist_t *propval; 2972 char *propstr; 2973 boolean_t right_justify; 2974 2975 for (; pl != NULL; pl = pl->pl_next) { 2976 if (!first) { 2977 if (cb->cb_scripted) 2978 (void) printf("\t"); 2979 else 2980 (void) printf(" "); 2981 } else { 2982 first = B_FALSE; 2983 } 2984 2985 if (pl->pl_prop == ZFS_PROP_NAME) { 2986 (void) strlcpy(property, zfs_get_name(zhp), 2987 sizeof(property)); 2988 propstr = property; 2989 right_justify = zfs_prop_align_right(pl->pl_prop); 2990 } else if (pl->pl_prop != ZPROP_INVAL) { 2991 if (zfs_prop_get(zhp, pl->pl_prop, property, 2992 sizeof (property), NULL, NULL, 0, 2993 cb->cb_literal) != 0) 2994 propstr = "-"; 2995 else 2996 propstr = property; 2997 right_justify = zfs_prop_align_right(pl->pl_prop); 2998 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2999 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3000 property, sizeof (property), cb->cb_literal) != 0) 3001 propstr = "-"; 3002 else 3003 propstr = property; 3004 right_justify = B_TRUE; 3005 } else if (zfs_prop_written(pl->pl_user_prop)) { 3006 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3007 property, sizeof (property), cb->cb_literal) != 0) 3008 propstr = "-"; 3009 else 3010 propstr = property; 3011 right_justify = B_TRUE; 3012 } else { 3013 if (nvlist_lookup_nvlist(userprops, 3014 pl->pl_user_prop, &propval) != 0) 3015 propstr = "-"; 3016 else 3017 verify(nvlist_lookup_string(propval, 3018 ZPROP_VALUE, &propstr) == 0); 3019 right_justify = B_FALSE; 3020 } 3021 3022 /* 3023 * If this is being called in scripted mode, or if this is the 3024 * last column and it is left-justified, don't include a width 3025 * format specifier. 3026 */ 3027 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3028 (void) printf("%s", propstr); 3029 else if (right_justify) 3030 (void) printf("%*s", pl->pl_width, propstr); 3031 else 3032 (void) printf("%-*s", pl->pl_width, propstr); 3033 } 3034 3035 (void) printf("\n"); 3036} 3037 3038/* 3039 * Generic callback function to list a dataset or snapshot. 3040 */ 3041static int 3042list_callback(zfs_handle_t *zhp, void *data) 3043{ 3044 list_cbdata_t *cbp = data; 3045 3046 if (cbp->cb_first) { 3047 if (!cbp->cb_scripted) 3048 print_header(cbp); 3049 cbp->cb_first = B_FALSE; 3050 } 3051 3052 print_dataset(zhp, cbp); 3053 3054 return (0); 3055} 3056 3057static int 3058zfs_do_list(int argc, char **argv) 3059{ 3060 int c; 3061 static char default_fields[] = 3062 "name,used,available,referenced,mountpoint"; 3063 int types = ZFS_TYPE_DATASET; 3064 boolean_t types_specified = B_FALSE; 3065 char *fields = NULL; 3066 list_cbdata_t cb = { 0 }; 3067 char *value; 3068 int limit = 0; 3069 int ret = 0; 3070 zfs_sort_column_t *sortcol = NULL; 3071 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3072 3073 /* check options */ 3074 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3075 switch (c) { 3076 case 'o': 3077 fields = optarg; 3078 break; 3079 case 'p': 3080 cb.cb_literal = B_TRUE; 3081 flags |= ZFS_ITER_LITERAL_PROPS; 3082 break; 3083 case 'd': 3084 limit = parse_depth(optarg, &flags); 3085 break; 3086 case 'r': 3087 flags |= ZFS_ITER_RECURSE; 3088 break; 3089 case 'H': 3090 cb.cb_scripted = B_TRUE; 3091 break; 3092 case 's': 3093 if (zfs_add_sort_column(&sortcol, optarg, 3094 B_FALSE) != 0) { 3095 (void) fprintf(stderr, 3096 gettext("invalid property '%s'\n"), optarg); 3097 usage(B_FALSE); 3098 } 3099 break; 3100 case 'S': 3101 if (zfs_add_sort_column(&sortcol, optarg, 3102 B_TRUE) != 0) { 3103 (void) fprintf(stderr, 3104 gettext("invalid property '%s'\n"), optarg); 3105 usage(B_FALSE); 3106 } 3107 break; 3108 case 't': 3109 types = 0; 3110 types_specified = B_TRUE; 3111 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3112 while (*optarg != '\0') { 3113 static char *type_subopts[] = { "filesystem", 3114 "volume", "snapshot", "snap", "bookmark", 3115 "all", NULL }; 3116 3117 switch (getsubopt(&optarg, type_subopts, 3118 &value)) { 3119 case 0: 3120 types |= ZFS_TYPE_FILESYSTEM; 3121 break; 3122 case 1: 3123 types |= ZFS_TYPE_VOLUME; 3124 break; 3125 case 2: 3126 case 3: 3127 types |= ZFS_TYPE_SNAPSHOT; 3128 break; 3129 case 4: 3130 types |= ZFS_TYPE_BOOKMARK; 3131 break; 3132 case 5: 3133 types = ZFS_TYPE_DATASET | 3134 ZFS_TYPE_BOOKMARK; 3135 break; 3136 default: 3137 (void) fprintf(stderr, 3138 gettext("invalid type '%s'\n"), 3139 value); 3140 usage(B_FALSE); 3141 } 3142 } 3143 break; 3144 case ':': 3145 (void) fprintf(stderr, gettext("missing argument for " 3146 "'%c' option\n"), optopt); 3147 usage(B_FALSE); 3148 break; 3149 case '?': 3150 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3151 optopt); 3152 usage(B_FALSE); 3153 } 3154 } 3155 3156 argc -= optind; 3157 argv += optind; 3158 3159 if (fields == NULL) 3160 fields = default_fields; 3161 3162 /* 3163 * If we are only going to list snapshot names and sort by name, 3164 * then we can use faster version. 3165 */ 3166 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3167 flags |= ZFS_ITER_SIMPLE; 3168 3169 /* 3170 * If "-o space" and no types were specified, don't display snapshots. 3171 */ 3172 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3173 types &= ~ZFS_TYPE_SNAPSHOT; 3174 3175 /* 3176 * If the user specifies '-o all', the zprop_get_list() doesn't 3177 * normally include the name of the dataset. For 'zfs list', we always 3178 * want this property to be first. 3179 */ 3180 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3181 != 0) 3182 usage(B_FALSE); 3183 3184 cb.cb_first = B_TRUE; 3185 3186 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3187 limit, list_callback, &cb); 3188 3189 zprop_free_list(cb.cb_proplist); 3190 zfs_free_sort_columns(sortcol); 3191 3192 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3193 (void) printf(gettext("no datasets available\n")); 3194 3195 return (ret); 3196} 3197 3198/* 3199 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3200 * zfs rename [-f] -p <fs | vol> <fs | vol> 3201 * zfs rename -r <snap> <snap> 3202 * zfs rename -u [-p] <fs> <fs> 3203 * 3204 * Renames the given dataset to another of the same type. 3205 * 3206 * The '-p' flag creates all the non-existing ancestors of the target first. 3207 */ 3208/* ARGSUSED */ 3209static int 3210zfs_do_rename(int argc, char **argv) 3211{ 3212 zfs_handle_t *zhp; 3213 renameflags_t flags = { 0 }; 3214 int c; 3215 int ret = 0; 3216 int types; 3217 boolean_t parents = B_FALSE; 3218 char *snapshot = NULL; 3219 3220 /* check options */ 3221 while ((c = getopt(argc, argv, "fpru")) != -1) { 3222 switch (c) { 3223 case 'p': 3224 parents = B_TRUE; 3225 break; 3226 case 'r': 3227 flags.recurse = B_TRUE; 3228 break; 3229 case 'u': 3230 flags.nounmount = B_TRUE; 3231 break; 3232 case 'f': 3233 flags.forceunmount = B_TRUE; 3234 break; 3235 case '?': 3236 default: 3237 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3238 optopt); 3239 usage(B_FALSE); 3240 } 3241 } 3242 3243 argc -= optind; 3244 argv += optind; 3245 3246 /* check number of arguments */ 3247 if (argc < 1) { 3248 (void) fprintf(stderr, gettext("missing source dataset " 3249 "argument\n")); 3250 usage(B_FALSE); 3251 } 3252 if (argc < 2) { 3253 (void) fprintf(stderr, gettext("missing target dataset " 3254 "argument\n")); 3255 usage(B_FALSE); 3256 } 3257 if (argc > 2) { 3258 (void) fprintf(stderr, gettext("too many arguments\n")); 3259 usage(B_FALSE); 3260 } 3261 3262 if (flags.recurse && parents) { 3263 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3264 "exclusive\n")); 3265 usage(B_FALSE); 3266 } 3267 3268 if (flags.recurse && strchr(argv[0], '@') == 0) { 3269 (void) fprintf(stderr, gettext("source dataset for recursive " 3270 "rename must be a snapshot\n")); 3271 usage(B_FALSE); 3272 } 3273 3274 if (flags.nounmount && parents) { 3275 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3276 "exclusive\n")); 3277 usage(B_FALSE); 3278 } 3279 3280 if (flags.nounmount) 3281 types = ZFS_TYPE_FILESYSTEM; 3282 else if (parents) 3283 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3284 else 3285 types = ZFS_TYPE_DATASET; 3286 3287 if (flags.recurse) { 3288 /* 3289 * When we do recursive rename we are fine when the given 3290 * snapshot for the given dataset doesn't exist - it can 3291 * still exists below. 3292 */ 3293 3294 snapshot = strchr(argv[0], '@'); 3295 assert(snapshot != NULL); 3296 *snapshot = '\0'; 3297 snapshot++; 3298 } 3299 3300 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3301 return (1); 3302 3303 /* If we were asked and the name looks good, try to create ancestors. */ 3304 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3305 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3306 zfs_close(zhp); 3307 return (1); 3308 } 3309 3310 ret = (zfs_rename(zhp, snapshot, argv[1], flags) != 0); 3311 3312 zfs_close(zhp); 3313 return (ret); 3314} 3315 3316/* 3317 * zfs promote <fs> 3318 * 3319 * Promotes the given clone fs to be the parent 3320 */ 3321/* ARGSUSED */ 3322static int 3323zfs_do_promote(int argc, char **argv) 3324{ 3325 zfs_handle_t *zhp; 3326 int ret = 0; 3327 3328 /* check options */ 3329 if (argc > 1 && argv[1][0] == '-') { 3330 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3331 argv[1][1]); 3332 usage(B_FALSE); 3333 } 3334 3335 /* check number of arguments */ 3336 if (argc < 2) { 3337 (void) fprintf(stderr, gettext("missing clone filesystem" 3338 " argument\n")); 3339 usage(B_FALSE); 3340 } 3341 if (argc > 2) { 3342 (void) fprintf(stderr, gettext("too many arguments\n")); 3343 usage(B_FALSE); 3344 } 3345 3346 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3347 if (zhp == NULL) 3348 return (1); 3349 3350 ret = (zfs_promote(zhp) != 0); 3351 3352 3353 zfs_close(zhp); 3354 return (ret); 3355} 3356 3357/* 3358 * zfs rollback [-rRf] <snapshot> 3359 * 3360 * -r Delete any intervening snapshots before doing rollback 3361 * -R Delete any snapshots and their clones 3362 * -f ignored for backwards compatability 3363 * 3364 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3365 * since then and making it the active dataset. If more recent snapshots exist, 3366 * the command will complain unless the '-r' flag is given. 3367 */ 3368typedef struct rollback_cbdata { 3369 uint64_t cb_create; 3370 boolean_t cb_first; 3371 int cb_doclones; 3372 char *cb_target; 3373 int cb_error; 3374 boolean_t cb_recurse; 3375} rollback_cbdata_t; 3376 3377static int 3378rollback_check_dependent(zfs_handle_t *zhp, void *data) 3379{ 3380 rollback_cbdata_t *cbp = data; 3381 3382 if (cbp->cb_first && cbp->cb_recurse) { 3383 (void) fprintf(stderr, gettext("cannot rollback to " 3384 "'%s': clones of previous snapshots exist\n"), 3385 cbp->cb_target); 3386 (void) fprintf(stderr, gettext("use '-R' to " 3387 "force deletion of the following clones and " 3388 "dependents:\n")); 3389 cbp->cb_first = 0; 3390 cbp->cb_error = 1; 3391 } 3392 3393 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3394 3395 zfs_close(zhp); 3396 return (0); 3397} 3398 3399/* 3400 * Report any snapshots more recent than the one specified. Used when '-r' is 3401 * not specified. We reuse this same callback for the snapshot dependents - if 3402 * 'cb_dependent' is set, then this is a dependent and we should report it 3403 * without checking the transaction group. 3404 */ 3405static int 3406rollback_check(zfs_handle_t *zhp, void *data) 3407{ 3408 rollback_cbdata_t *cbp = data; 3409 3410 if (cbp->cb_doclones) { 3411 zfs_close(zhp); 3412 return (0); 3413 } 3414 3415 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3416 if (cbp->cb_first && !cbp->cb_recurse) { 3417 (void) fprintf(stderr, gettext("cannot " 3418 "rollback to '%s': more recent snapshots " 3419 "or bookmarks exist\n"), 3420 cbp->cb_target); 3421 (void) fprintf(stderr, gettext("use '-r' to " 3422 "force deletion of the following " 3423 "snapshots and bookmarks:\n")); 3424 cbp->cb_first = 0; 3425 cbp->cb_error = 1; 3426 } 3427 3428 if (cbp->cb_recurse) { 3429 if (zfs_iter_dependents(zhp, B_TRUE, 3430 rollback_check_dependent, cbp) != 0) { 3431 zfs_close(zhp); 3432 return (-1); 3433 } 3434 } else { 3435 (void) fprintf(stderr, "%s\n", 3436 zfs_get_name(zhp)); 3437 } 3438 } 3439 zfs_close(zhp); 3440 return (0); 3441} 3442 3443static int 3444zfs_do_rollback(int argc, char **argv) 3445{ 3446 int ret = 0; 3447 int c; 3448 boolean_t force = B_FALSE; 3449 rollback_cbdata_t cb = { 0 }; 3450 zfs_handle_t *zhp, *snap; 3451 char parentname[ZFS_MAXNAMELEN]; 3452 char *delim; 3453 3454 /* check options */ 3455 while ((c = getopt(argc, argv, "rRf")) != -1) { 3456 switch (c) { 3457 case 'r': 3458 cb.cb_recurse = 1; 3459 break; 3460 case 'R': 3461 cb.cb_recurse = 1; 3462 cb.cb_doclones = 1; 3463 break; 3464 case 'f': 3465 force = B_TRUE; 3466 break; 3467 case '?': 3468 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3469 optopt); 3470 usage(B_FALSE); 3471 } 3472 } 3473 3474 argc -= optind; 3475 argv += optind; 3476 3477 /* check number of arguments */ 3478 if (argc < 1) { 3479 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3480 usage(B_FALSE); 3481 } 3482 if (argc > 1) { 3483 (void) fprintf(stderr, gettext("too many arguments\n")); 3484 usage(B_FALSE); 3485 } 3486 3487 /* open the snapshot */ 3488 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3489 return (1); 3490 3491 /* open the parent dataset */ 3492 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3493 verify((delim = strrchr(parentname, '@')) != NULL); 3494 *delim = '\0'; 3495 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3496 zfs_close(snap); 3497 return (1); 3498 } 3499 3500 /* 3501 * Check for more recent snapshots and/or clones based on the presence 3502 * of '-r' and '-R'. 3503 */ 3504 cb.cb_target = argv[0]; 3505 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3506 cb.cb_first = B_TRUE; 3507 cb.cb_error = 0; 3508 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3509 goto out; 3510 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3511 goto out; 3512 3513 if ((ret = cb.cb_error) != 0) 3514 goto out; 3515 3516 /* 3517 * Rollback parent to the given snapshot. 3518 */ 3519 ret = zfs_rollback(zhp, snap, force); 3520 3521out: 3522 zfs_close(snap); 3523 zfs_close(zhp); 3524 3525 if (ret == 0) 3526 return (0); 3527 else 3528 return (1); 3529} 3530 3531/* 3532 * zfs set property=value { fs | snap | vol } ... 3533 * 3534 * Sets the given property for all datasets specified on the command line. 3535 */ 3536typedef struct set_cbdata { 3537 char *cb_propname; 3538 char *cb_value; 3539} set_cbdata_t; 3540 3541static int 3542set_callback(zfs_handle_t *zhp, void *data) 3543{ 3544 set_cbdata_t *cbp = data; 3545 3546 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3547 switch (libzfs_errno(g_zfs)) { 3548 case EZFS_MOUNTFAILED: 3549 (void) fprintf(stderr, gettext("property may be set " 3550 "but unable to remount filesystem\n")); 3551 break; 3552 case EZFS_SHARENFSFAILED: 3553 (void) fprintf(stderr, gettext("property may be set " 3554 "but unable to reshare filesystem\n")); 3555 break; 3556 } 3557 return (1); 3558 } 3559 return (0); 3560} 3561 3562static int 3563zfs_do_set(int argc, char **argv) 3564{ 3565 set_cbdata_t cb; 3566 int ret = 0; 3567 3568 /* check for options */ 3569 if (argc > 1 && argv[1][0] == '-') { 3570 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3571 argv[1][1]); 3572 usage(B_FALSE); 3573 } 3574 3575 /* check number of arguments */ 3576 if (argc < 2) { 3577 (void) fprintf(stderr, gettext("missing property=value " 3578 "argument\n")); 3579 usage(B_FALSE); 3580 } 3581 if (argc < 3) { 3582 (void) fprintf(stderr, gettext("missing dataset name\n")); 3583 usage(B_FALSE); 3584 } 3585 3586 /* validate property=value argument */ 3587 cb.cb_propname = argv[1]; 3588 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3589 (cb.cb_value[1] == '\0')) { 3590 (void) fprintf(stderr, gettext("missing value in " 3591 "property=value argument\n")); 3592 usage(B_FALSE); 3593 } 3594 3595 *cb.cb_value = '\0'; 3596 cb.cb_value++; 3597 3598 if (*cb.cb_propname == '\0') { 3599 (void) fprintf(stderr, 3600 gettext("missing property in property=value argument\n")); 3601 usage(B_FALSE); 3602 } 3603 3604 ret = zfs_for_each(argc - 2, argv + 2, 0, 3605 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3606 3607 return (ret); 3608} 3609 3610typedef struct snap_cbdata { 3611 nvlist_t *sd_nvl; 3612 boolean_t sd_recursive; 3613 const char *sd_snapname; 3614} snap_cbdata_t; 3615 3616static int 3617zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3618{ 3619 snap_cbdata_t *sd = arg; 3620 char *name; 3621 int rv = 0; 3622 int error; 3623 3624 if (sd->sd_recursive && 3625 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3626 zfs_close(zhp); 3627 return (0); 3628 } 3629 3630 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3631 if (error == -1) 3632 nomem(); 3633 fnvlist_add_boolean(sd->sd_nvl, name); 3634 free(name); 3635 3636 if (sd->sd_recursive) 3637 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3638 zfs_close(zhp); 3639 return (rv); 3640} 3641 3642/* 3643 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3644 * 3645 * Creates a snapshot with the given name. While functionally equivalent to 3646 * 'zfs create', it is a separate command to differentiate intent. 3647 */ 3648static int 3649zfs_do_snapshot(int argc, char **argv) 3650{ 3651 int ret = 0; 3652 int c; 3653 nvlist_t *props; 3654 snap_cbdata_t sd = { 0 }; 3655 boolean_t multiple_snaps = B_FALSE; 3656 3657 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3658 nomem(); 3659 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3660 nomem(); 3661 3662 /* check options */ 3663 while ((c = getopt(argc, argv, "ro:")) != -1) { 3664 switch (c) { 3665 case 'o': 3666 if (parseprop(props, optarg)) 3667 return (1); 3668 break; 3669 case 'r': 3670 sd.sd_recursive = B_TRUE; 3671 multiple_snaps = B_TRUE; 3672 break; 3673 case '?': 3674 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3675 optopt); 3676 goto usage; 3677 } 3678 } 3679 3680 argc -= optind; 3681 argv += optind; 3682 3683 /* check number of arguments */ 3684 if (argc < 1) { 3685 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3686 goto usage; 3687 } 3688 3689 if (argc > 1) 3690 multiple_snaps = B_TRUE; 3691 for (; argc > 0; argc--, argv++) { 3692 char *atp; 3693 zfs_handle_t *zhp; 3694 3695 atp = strchr(argv[0], '@'); 3696 if (atp == NULL) 3697 goto usage; 3698 *atp = '\0'; 3699 sd.sd_snapname = atp + 1; 3700 zhp = zfs_open(g_zfs, argv[0], 3701 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3702 if (zhp == NULL) 3703 goto usage; 3704 if (zfs_snapshot_cb(zhp, &sd) != 0) 3705 goto usage; 3706 } 3707 3708 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3709 nvlist_free(sd.sd_nvl); 3710 nvlist_free(props); 3711 if (ret != 0 && multiple_snaps) 3712 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3713 return (ret != 0); 3714 3715usage: 3716 nvlist_free(sd.sd_nvl); 3717 nvlist_free(props); 3718 usage(B_FALSE); 3719 return (-1); 3720} 3721 3722/* 3723 * Send a backup stream to stdout. 3724 */ 3725static int 3726zfs_do_send(int argc, char **argv) 3727{ 3728 char *fromname = NULL; 3729 char *toname = NULL; 3730 char *cp; 3731 zfs_handle_t *zhp; 3732 sendflags_t flags = { 0 }; 3733 int c, err; 3734 nvlist_t *dbgnv = NULL; 3735 boolean_t extraverbose = B_FALSE; 3736 3737 /* check options */ 3738 while ((c = getopt(argc, argv, ":i:I:RDpvnPLe")) != -1) { 3739 switch (c) { 3740 case 'i': 3741 if (fromname) 3742 usage(B_FALSE); 3743 fromname = optarg; 3744 break; 3745 case 'I': 3746 if (fromname) 3747 usage(B_FALSE); 3748 fromname = optarg; 3749 flags.doall = B_TRUE; 3750 break; 3751 case 'R': 3752 flags.replicate = B_TRUE; 3753 break; 3754 case 'p': 3755 flags.props = B_TRUE; 3756 break; 3757 case 'P': 3758 flags.parsable = B_TRUE; 3759 flags.verbose = B_TRUE; 3760 break; 3761 case 'v': 3762 if (flags.verbose) 3763 extraverbose = B_TRUE; 3764 flags.verbose = B_TRUE; 3765 flags.progress = B_TRUE; 3766 break; 3767 case 'D': 3768 flags.dedup = B_TRUE; 3769 break; 3770 case 'n': 3771 flags.dryrun = B_TRUE; 3772 break; 3773 case 'L': 3774 flags.largeblock = B_TRUE; 3775 break; 3776 case 'e': 3777 flags.embed_data = B_TRUE; 3778 break; 3779 case ':': 3780 (void) fprintf(stderr, gettext("missing argument for " 3781 "'%c' option\n"), optopt); 3782 usage(B_FALSE); 3783 break; 3784 case '?': 3785 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3786 optopt); 3787 usage(B_FALSE); 3788 } 3789 } 3790 3791 argc -= optind; 3792 argv += optind; 3793 3794 /* check number of arguments */ 3795 if (argc < 1) { 3796 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3797 usage(B_FALSE); 3798 } 3799 if (argc > 1) { 3800 (void) fprintf(stderr, gettext("too many arguments\n")); 3801 usage(B_FALSE); 3802 } 3803 3804 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3805 (void) fprintf(stderr, 3806 gettext("Error: Stream can not be written to a terminal.\n" 3807 "You must redirect standard output.\n")); 3808 return (1); 3809 } 3810 3811 /* 3812 * Special case sending a filesystem, or from a bookmark. 3813 */ 3814 if (strchr(argv[0], '@') == NULL || 3815 (fromname && strchr(fromname, '#') != NULL)) { 3816 char frombuf[ZFS_MAXNAMELEN]; 3817 enum lzc_send_flags lzc_flags = 0; 3818 3819 if (flags.replicate || flags.doall || flags.props || 3820 flags.dedup || flags.dryrun || flags.verbose || 3821 flags.progress) { 3822 (void) fprintf(stderr, 3823 gettext("Error: " 3824 "Unsupported flag with filesystem or bookmark.\n")); 3825 return (1); 3826 } 3827 3828 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3829 if (zhp == NULL) 3830 return (1); 3831 3832 if (flags.largeblock) 3833 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3834 if (flags.embed_data) 3835 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3836 3837 if (fromname != NULL && 3838 (fromname[0] == '#' || fromname[0] == '@')) { 3839 /* 3840 * Incremental source name begins with # or @. 3841 * Default to same fs as target. 3842 */ 3843 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3844 cp = strchr(frombuf, '@'); 3845 if (cp != NULL) 3846 *cp = '\0'; 3847 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3848 fromname = frombuf; 3849 } 3850 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3851 zfs_close(zhp); 3852 return (err != 0); 3853 } 3854 3855 cp = strchr(argv[0], '@'); 3856 *cp = '\0'; 3857 toname = cp + 1; 3858 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3859 if (zhp == NULL) 3860 return (1); 3861 3862 /* 3863 * If they specified the full path to the snapshot, chop off 3864 * everything except the short name of the snapshot, but special 3865 * case if they specify the origin. 3866 */ 3867 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3868 char origin[ZFS_MAXNAMELEN]; 3869 zprop_source_t src; 3870 3871 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3872 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3873 3874 if (strcmp(origin, fromname) == 0) { 3875 fromname = NULL; 3876 flags.fromorigin = B_TRUE; 3877 } else { 3878 *cp = '\0'; 3879 if (cp != fromname && strcmp(argv[0], fromname)) { 3880 (void) fprintf(stderr, 3881 gettext("incremental source must be " 3882 "in same filesystem\n")); 3883 usage(B_FALSE); 3884 } 3885 fromname = cp + 1; 3886 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3887 (void) fprintf(stderr, 3888 gettext("invalid incremental source\n")); 3889 usage(B_FALSE); 3890 } 3891 } 3892 } 3893 3894 if (flags.replicate && fromname == NULL) 3895 flags.doall = B_TRUE; 3896 3897 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3898 extraverbose ? &dbgnv : NULL); 3899 3900 if (extraverbose && dbgnv != NULL) { 3901 /* 3902 * dump_nvlist prints to stdout, but that's been 3903 * redirected to a file. Make it print to stderr 3904 * instead. 3905 */ 3906 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3907 dump_nvlist(dbgnv, 0); 3908 nvlist_free(dbgnv); 3909 } 3910 zfs_close(zhp); 3911 3912 return (err != 0); 3913} 3914 3915/* 3916 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3917 * 3918 * Restore a backup stream from stdin. 3919 */ 3920static int 3921zfs_do_receive(int argc, char **argv) 3922{ 3923 int c, err; 3924 recvflags_t flags = { 0 }; 3925 3926 /* check options */ 3927 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3928 switch (c) { 3929 case 'd': 3930 flags.isprefix = B_TRUE; 3931 break; 3932 case 'e': 3933 flags.isprefix = B_TRUE; 3934 flags.istail = B_TRUE; 3935 break; 3936 case 'n': 3937 flags.dryrun = B_TRUE; 3938 break; 3939 case 'u': 3940 flags.nomount = B_TRUE; 3941 break; 3942 case 'v': 3943 flags.verbose = B_TRUE; 3944 break; 3945 case 'F': 3946 flags.force = B_TRUE; 3947 break; 3948 case ':': 3949 (void) fprintf(stderr, gettext("missing argument for " 3950 "'%c' option\n"), optopt); 3951 usage(B_FALSE); 3952 break; 3953 case '?': 3954 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3955 optopt); 3956 usage(B_FALSE); 3957 } 3958 } 3959 3960 argc -= optind; 3961 argv += optind; 3962 3963 /* check number of arguments */ 3964 if (argc < 1) { 3965 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3966 usage(B_FALSE); 3967 } 3968 if (argc > 1) { 3969 (void) fprintf(stderr, gettext("too many arguments\n")); 3970 usage(B_FALSE); 3971 } 3972 3973 if (isatty(STDIN_FILENO)) { 3974 (void) fprintf(stderr, 3975 gettext("Error: Backup stream can not be read " 3976 "from a terminal.\n" 3977 "You must redirect standard input.\n")); 3978 return (1); 3979 } 3980 3981 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3982 3983 return (err != 0); 3984} 3985 3986/* 3987 * allow/unallow stuff 3988 */ 3989/* copied from zfs/sys/dsl_deleg.h */ 3990#define ZFS_DELEG_PERM_CREATE "create" 3991#define ZFS_DELEG_PERM_DESTROY "destroy" 3992#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3993#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3994#define ZFS_DELEG_PERM_CLONE "clone" 3995#define ZFS_DELEG_PERM_PROMOTE "promote" 3996#define ZFS_DELEG_PERM_RENAME "rename" 3997#define ZFS_DELEG_PERM_MOUNT "mount" 3998#define ZFS_DELEG_PERM_SHARE "share" 3999#define ZFS_DELEG_PERM_SEND "send" 4000#define ZFS_DELEG_PERM_RECEIVE "receive" 4001#define ZFS_DELEG_PERM_ALLOW "allow" 4002#define ZFS_DELEG_PERM_USERPROP "userprop" 4003#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4004#define ZFS_DELEG_PERM_USERQUOTA "userquota" 4005#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4006#define ZFS_DELEG_PERM_USERUSED "userused" 4007#define ZFS_DELEG_PERM_GROUPUSED "groupused" 4008#define ZFS_DELEG_PERM_HOLD "hold" 4009#define ZFS_DELEG_PERM_RELEASE "release" 4010#define ZFS_DELEG_PERM_DIFF "diff" 4011#define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4012 4013#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4014 4015static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4016 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4017 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4018 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4019 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4020 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4021 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4022 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4023 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4024 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4025 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4026 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4027 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4028 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4029 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4030 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4031 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4032 4033 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4034 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4035 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4036 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4037 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4038 { NULL, ZFS_DELEG_NOTE_NONE } 4039}; 4040 4041/* permission structure */ 4042typedef struct deleg_perm { 4043 zfs_deleg_who_type_t dp_who_type; 4044 const char *dp_name; 4045 boolean_t dp_local; 4046 boolean_t dp_descend; 4047} deleg_perm_t; 4048 4049/* */ 4050typedef struct deleg_perm_node { 4051 deleg_perm_t dpn_perm; 4052 4053 uu_avl_node_t dpn_avl_node; 4054} deleg_perm_node_t; 4055 4056typedef struct fs_perm fs_perm_t; 4057 4058/* permissions set */ 4059typedef struct who_perm { 4060 zfs_deleg_who_type_t who_type; 4061 const char *who_name; /* id */ 4062 char who_ug_name[256]; /* user/group name */ 4063 fs_perm_t *who_fsperm; /* uplink */ 4064 4065 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4066} who_perm_t; 4067 4068/* */ 4069typedef struct who_perm_node { 4070 who_perm_t who_perm; 4071 uu_avl_node_t who_avl_node; 4072} who_perm_node_t; 4073 4074typedef struct fs_perm_set fs_perm_set_t; 4075/* fs permissions */ 4076struct fs_perm { 4077 const char *fsp_name; 4078 4079 uu_avl_t *fsp_sc_avl; /* sets,create */ 4080 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4081 4082 fs_perm_set_t *fsp_set; /* uplink */ 4083}; 4084 4085/* */ 4086typedef struct fs_perm_node { 4087 fs_perm_t fspn_fsperm; 4088 uu_avl_t *fspn_avl; 4089 4090 uu_list_node_t fspn_list_node; 4091} fs_perm_node_t; 4092 4093/* top level structure */ 4094struct fs_perm_set { 4095 uu_list_pool_t *fsps_list_pool; 4096 uu_list_t *fsps_list; /* list of fs_perms */ 4097 4098 uu_avl_pool_t *fsps_named_set_avl_pool; 4099 uu_avl_pool_t *fsps_who_perm_avl_pool; 4100 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4101}; 4102 4103static inline const char * 4104deleg_perm_type(zfs_deleg_note_t note) 4105{ 4106 /* subcommands */ 4107 switch (note) { 4108 /* SUBCOMMANDS */ 4109 /* OTHER */ 4110 case ZFS_DELEG_NOTE_GROUPQUOTA: 4111 case ZFS_DELEG_NOTE_GROUPUSED: 4112 case ZFS_DELEG_NOTE_USERPROP: 4113 case ZFS_DELEG_NOTE_USERQUOTA: 4114 case ZFS_DELEG_NOTE_USERUSED: 4115 /* other */ 4116 return (gettext("other")); 4117 default: 4118 return (gettext("subcommand")); 4119 } 4120} 4121 4122static int inline 4123who_type2weight(zfs_deleg_who_type_t who_type) 4124{ 4125 int res; 4126 switch (who_type) { 4127 case ZFS_DELEG_NAMED_SET_SETS: 4128 case ZFS_DELEG_NAMED_SET: 4129 res = 0; 4130 break; 4131 case ZFS_DELEG_CREATE_SETS: 4132 case ZFS_DELEG_CREATE: 4133 res = 1; 4134 break; 4135 case ZFS_DELEG_USER_SETS: 4136 case ZFS_DELEG_USER: 4137 res = 2; 4138 break; 4139 case ZFS_DELEG_GROUP_SETS: 4140 case ZFS_DELEG_GROUP: 4141 res = 3; 4142 break; 4143 case ZFS_DELEG_EVERYONE_SETS: 4144 case ZFS_DELEG_EVERYONE: 4145 res = 4; 4146 break; 4147 default: 4148 res = -1; 4149 } 4150 4151 return (res); 4152} 4153 4154/* ARGSUSED */ 4155static int 4156who_perm_compare(const void *larg, const void *rarg, void *unused) 4157{ 4158 const who_perm_node_t *l = larg; 4159 const who_perm_node_t *r = rarg; 4160 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4161 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4162 int lweight = who_type2weight(ltype); 4163 int rweight = who_type2weight(rtype); 4164 int res = lweight - rweight; 4165 if (res == 0) 4166 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4167 ZFS_MAX_DELEG_NAME-1); 4168 4169 if (res == 0) 4170 return (0); 4171 if (res > 0) 4172 return (1); 4173 else 4174 return (-1); 4175} 4176 4177/* ARGSUSED */ 4178static int 4179deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4180{ 4181 const deleg_perm_node_t *l = larg; 4182 const deleg_perm_node_t *r = rarg; 4183 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4184 ZFS_MAX_DELEG_NAME-1); 4185 4186 if (res == 0) 4187 return (0); 4188 4189 if (res > 0) 4190 return (1); 4191 else 4192 return (-1); 4193} 4194 4195static inline void 4196fs_perm_set_init(fs_perm_set_t *fspset) 4197{ 4198 bzero(fspset, sizeof (fs_perm_set_t)); 4199 4200 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4201 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4202 NULL, UU_DEFAULT)) == NULL) 4203 nomem(); 4204 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4205 UU_DEFAULT)) == NULL) 4206 nomem(); 4207 4208 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4209 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4210 who_perm_node_t, who_avl_node), who_perm_compare, 4211 UU_DEFAULT)) == NULL) 4212 nomem(); 4213 4214 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4215 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4216 who_perm_node_t, who_avl_node), who_perm_compare, 4217 UU_DEFAULT)) == NULL) 4218 nomem(); 4219 4220 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4221 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4222 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4223 == NULL) 4224 nomem(); 4225} 4226 4227static inline void fs_perm_fini(fs_perm_t *); 4228static inline void who_perm_fini(who_perm_t *); 4229 4230static inline void 4231fs_perm_set_fini(fs_perm_set_t *fspset) 4232{ 4233 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4234 4235 while (node != NULL) { 4236 fs_perm_node_t *next_node = 4237 uu_list_next(fspset->fsps_list, node); 4238 fs_perm_t *fsperm = &node->fspn_fsperm; 4239 fs_perm_fini(fsperm); 4240 uu_list_remove(fspset->fsps_list, node); 4241 free(node); 4242 node = next_node; 4243 } 4244 4245 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4246 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4247 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4248} 4249 4250static inline void 4251deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4252 const char *name) 4253{ 4254 deleg_perm->dp_who_type = type; 4255 deleg_perm->dp_name = name; 4256} 4257 4258static inline void 4259who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4260 zfs_deleg_who_type_t type, const char *name) 4261{ 4262 uu_avl_pool_t *pool; 4263 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4264 4265 bzero(who_perm, sizeof (who_perm_t)); 4266 4267 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4268 UU_DEFAULT)) == NULL) 4269 nomem(); 4270 4271 who_perm->who_type = type; 4272 who_perm->who_name = name; 4273 who_perm->who_fsperm = fsperm; 4274} 4275 4276static inline void 4277who_perm_fini(who_perm_t *who_perm) 4278{ 4279 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4280 4281 while (node != NULL) { 4282 deleg_perm_node_t *next_node = 4283 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4284 4285 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4286 free(node); 4287 node = next_node; 4288 } 4289 4290 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4291} 4292 4293static inline void 4294fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4295{ 4296 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4297 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4298 4299 bzero(fsperm, sizeof (fs_perm_t)); 4300 4301 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4302 == NULL) 4303 nomem(); 4304 4305 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4306 == NULL) 4307 nomem(); 4308 4309 fsperm->fsp_set = fspset; 4310 fsperm->fsp_name = fsname; 4311} 4312 4313static inline void 4314fs_perm_fini(fs_perm_t *fsperm) 4315{ 4316 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4317 while (node != NULL) { 4318 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4319 node); 4320 who_perm_t *who_perm = &node->who_perm; 4321 who_perm_fini(who_perm); 4322 uu_avl_remove(fsperm->fsp_sc_avl, node); 4323 free(node); 4324 node = next_node; 4325 } 4326 4327 node = uu_avl_first(fsperm->fsp_uge_avl); 4328 while (node != NULL) { 4329 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4330 node); 4331 who_perm_t *who_perm = &node->who_perm; 4332 who_perm_fini(who_perm); 4333 uu_avl_remove(fsperm->fsp_uge_avl, node); 4334 free(node); 4335 node = next_node; 4336 } 4337 4338 uu_avl_destroy(fsperm->fsp_sc_avl); 4339 uu_avl_destroy(fsperm->fsp_uge_avl); 4340} 4341 4342static void inline 4343set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4344 zfs_deleg_who_type_t who_type, const char *name, char locality) 4345{ 4346 uu_avl_index_t idx = 0; 4347 4348 deleg_perm_node_t *found_node = NULL; 4349 deleg_perm_t *deleg_perm = &node->dpn_perm; 4350 4351 deleg_perm_init(deleg_perm, who_type, name); 4352 4353 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4354 == NULL) 4355 uu_avl_insert(avl, node, idx); 4356 else { 4357 node = found_node; 4358 deleg_perm = &node->dpn_perm; 4359 } 4360 4361 4362 switch (locality) { 4363 case ZFS_DELEG_LOCAL: 4364 deleg_perm->dp_local = B_TRUE; 4365 break; 4366 case ZFS_DELEG_DESCENDENT: 4367 deleg_perm->dp_descend = B_TRUE; 4368 break; 4369 case ZFS_DELEG_NA: 4370 break; 4371 default: 4372 assert(B_FALSE); /* invalid locality */ 4373 } 4374} 4375 4376static inline int 4377parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4378{ 4379 nvpair_t *nvp = NULL; 4380 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4381 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4382 zfs_deleg_who_type_t who_type = who_perm->who_type; 4383 4384 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4385 const char *name = nvpair_name(nvp); 4386 data_type_t type = nvpair_type(nvp); 4387 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4388 deleg_perm_node_t *node = 4389 safe_malloc(sizeof (deleg_perm_node_t)); 4390 4391 assert(type == DATA_TYPE_BOOLEAN); 4392 4393 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4394 set_deleg_perm_node(avl, node, who_type, name, locality); 4395 } 4396 4397 return (0); 4398} 4399 4400static inline int 4401parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4402{ 4403 nvpair_t *nvp = NULL; 4404 fs_perm_set_t *fspset = fsperm->fsp_set; 4405 4406 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4407 nvlist_t *nvl2 = NULL; 4408 const char *name = nvpair_name(nvp); 4409 uu_avl_t *avl = NULL; 4410 uu_avl_pool_t *avl_pool; 4411 zfs_deleg_who_type_t perm_type = name[0]; 4412 char perm_locality = name[1]; 4413 const char *perm_name = name + 3; 4414 boolean_t is_set = B_TRUE; 4415 who_perm_t *who_perm = NULL; 4416 4417 assert('$' == name[2]); 4418 4419 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4420 return (-1); 4421 4422 switch (perm_type) { 4423 case ZFS_DELEG_CREATE: 4424 case ZFS_DELEG_CREATE_SETS: 4425 case ZFS_DELEG_NAMED_SET: 4426 case ZFS_DELEG_NAMED_SET_SETS: 4427 avl_pool = fspset->fsps_named_set_avl_pool; 4428 avl = fsperm->fsp_sc_avl; 4429 break; 4430 case ZFS_DELEG_USER: 4431 case ZFS_DELEG_USER_SETS: 4432 case ZFS_DELEG_GROUP: 4433 case ZFS_DELEG_GROUP_SETS: 4434 case ZFS_DELEG_EVERYONE: 4435 case ZFS_DELEG_EVERYONE_SETS: 4436 avl_pool = fspset->fsps_who_perm_avl_pool; 4437 avl = fsperm->fsp_uge_avl; 4438 break; 4439 } 4440 4441 if (is_set) { 4442 who_perm_node_t *found_node = NULL; 4443 who_perm_node_t *node = safe_malloc( 4444 sizeof (who_perm_node_t)); 4445 who_perm = &node->who_perm; 4446 uu_avl_index_t idx = 0; 4447 4448 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4449 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4450 4451 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4452 == NULL) { 4453 if (avl == fsperm->fsp_uge_avl) { 4454 uid_t rid = 0; 4455 struct passwd *p = NULL; 4456 struct group *g = NULL; 4457 const char *nice_name = NULL; 4458 4459 switch (perm_type) { 4460 case ZFS_DELEG_USER_SETS: 4461 case ZFS_DELEG_USER: 4462 rid = atoi(perm_name); 4463 p = getpwuid(rid); 4464 if (p) 4465 nice_name = p->pw_name; 4466 break; 4467 case ZFS_DELEG_GROUP_SETS: 4468 case ZFS_DELEG_GROUP: 4469 rid = atoi(perm_name); 4470 g = getgrgid(rid); 4471 if (g) 4472 nice_name = g->gr_name; 4473 break; 4474 } 4475 4476 if (nice_name != NULL) 4477 (void) strlcpy( 4478 node->who_perm.who_ug_name, 4479 nice_name, 256); 4480 } 4481 4482 uu_avl_insert(avl, node, idx); 4483 } else { 4484 node = found_node; 4485 who_perm = &node->who_perm; 4486 } 4487 } 4488 4489 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4490 } 4491 4492 return (0); 4493} 4494 4495static inline int 4496parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4497{ 4498 nvpair_t *nvp = NULL; 4499 uu_avl_index_t idx = 0; 4500 4501 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4502 nvlist_t *nvl2 = NULL; 4503 const char *fsname = nvpair_name(nvp); 4504 data_type_t type = nvpair_type(nvp); 4505 fs_perm_t *fsperm = NULL; 4506 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4507 if (node == NULL) 4508 nomem(); 4509 4510 fsperm = &node->fspn_fsperm; 4511 4512 assert(DATA_TYPE_NVLIST == type); 4513 4514 uu_list_node_init(node, &node->fspn_list_node, 4515 fspset->fsps_list_pool); 4516 4517 idx = uu_list_numnodes(fspset->fsps_list); 4518 fs_perm_init(fsperm, fspset, fsname); 4519 4520 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4521 return (-1); 4522 4523 (void) parse_fs_perm(fsperm, nvl2); 4524 4525 uu_list_insert(fspset->fsps_list, node, idx); 4526 } 4527 4528 return (0); 4529} 4530 4531static inline const char * 4532deleg_perm_comment(zfs_deleg_note_t note) 4533{ 4534 const char *str = ""; 4535 4536 /* subcommands */ 4537 switch (note) { 4538 /* SUBCOMMANDS */ 4539 case ZFS_DELEG_NOTE_ALLOW: 4540 str = gettext("Must also have the permission that is being" 4541 "\n\t\t\t\tallowed"); 4542 break; 4543 case ZFS_DELEG_NOTE_CLONE: 4544 str = gettext("Must also have the 'create' ability and 'mount'" 4545 "\n\t\t\t\tability in the origin file system"); 4546 break; 4547 case ZFS_DELEG_NOTE_CREATE: 4548 str = gettext("Must also have the 'mount' ability"); 4549 break; 4550 case ZFS_DELEG_NOTE_DESTROY: 4551 str = gettext("Must also have the 'mount' ability"); 4552 break; 4553 case ZFS_DELEG_NOTE_DIFF: 4554 str = gettext("Allows lookup of paths within a dataset;" 4555 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4556 "\n\t\t\t\tin order to use zfs diff"); 4557 break; 4558 case ZFS_DELEG_NOTE_HOLD: 4559 str = gettext("Allows adding a user hold to a snapshot"); 4560 break; 4561 case ZFS_DELEG_NOTE_MOUNT: 4562 str = gettext("Allows mount/umount of ZFS datasets"); 4563 break; 4564 case ZFS_DELEG_NOTE_PROMOTE: 4565 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4566 " 'promote' ability in the origin file system"); 4567 break; 4568 case ZFS_DELEG_NOTE_RECEIVE: 4569 str = gettext("Must also have the 'mount' and 'create'" 4570 " ability"); 4571 break; 4572 case ZFS_DELEG_NOTE_RELEASE: 4573 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4574 "might destroy the snapshot"); 4575 break; 4576 case ZFS_DELEG_NOTE_RENAME: 4577 str = gettext("Must also have the 'mount' and 'create'" 4578 "\n\t\t\t\tability in the new parent"); 4579 break; 4580 case ZFS_DELEG_NOTE_ROLLBACK: 4581 str = gettext(""); 4582 break; 4583 case ZFS_DELEG_NOTE_SEND: 4584 str = gettext(""); 4585 break; 4586 case ZFS_DELEG_NOTE_SHARE: 4587 str = gettext("Allows sharing file systems over NFS or SMB" 4588 "\n\t\t\t\tprotocols"); 4589 break; 4590 case ZFS_DELEG_NOTE_SNAPSHOT: 4591 str = gettext(""); 4592 break; 4593/* 4594 * case ZFS_DELEG_NOTE_VSCAN: 4595 * str = gettext(""); 4596 * break; 4597 */ 4598 /* OTHER */ 4599 case ZFS_DELEG_NOTE_GROUPQUOTA: 4600 str = gettext("Allows accessing any groupquota@... property"); 4601 break; 4602 case ZFS_DELEG_NOTE_GROUPUSED: 4603 str = gettext("Allows reading any groupused@... property"); 4604 break; 4605 case ZFS_DELEG_NOTE_USERPROP: 4606 str = gettext("Allows changing any user property"); 4607 break; 4608 case ZFS_DELEG_NOTE_USERQUOTA: 4609 str = gettext("Allows accessing any userquota@... property"); 4610 break; 4611 case ZFS_DELEG_NOTE_USERUSED: 4612 str = gettext("Allows reading any userused@... property"); 4613 break; 4614 /* other */ 4615 default: 4616 str = ""; 4617 } 4618 4619 return (str); 4620} 4621 4622struct allow_opts { 4623 boolean_t local; 4624 boolean_t descend; 4625 boolean_t user; 4626 boolean_t group; 4627 boolean_t everyone; 4628 boolean_t create; 4629 boolean_t set; 4630 boolean_t recursive; /* unallow only */ 4631 boolean_t prt_usage; 4632 4633 boolean_t prt_perms; 4634 char *who; 4635 char *perms; 4636 const char *dataset; 4637}; 4638 4639static inline int 4640prop_cmp(const void *a, const void *b) 4641{ 4642 const char *str1 = *(const char **)a; 4643 const char *str2 = *(const char **)b; 4644 return (strcmp(str1, str2)); 4645} 4646 4647static void 4648allow_usage(boolean_t un, boolean_t requested, const char *msg) 4649{ 4650 const char *opt_desc[] = { 4651 "-h", gettext("show this help message and exit"), 4652 "-l", gettext("set permission locally"), 4653 "-d", gettext("set permission for descents"), 4654 "-u", gettext("set permission for user"), 4655 "-g", gettext("set permission for group"), 4656 "-e", gettext("set permission for everyone"), 4657 "-c", gettext("set create time permission"), 4658 "-s", gettext("define permission set"), 4659 /* unallow only */ 4660 "-r", gettext("remove permissions recursively"), 4661 }; 4662 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4663 size_t allow_size = unallow_size - 2; 4664 const char *props[ZFS_NUM_PROPS]; 4665 int i; 4666 size_t count = 0; 4667 FILE *fp = requested ? stdout : stderr; 4668 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4669 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4670 4671 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4672 HELP_ALLOW)); 4673 (void) fprintf(fp, gettext("Options:\n")); 4674 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4675 const char *opt = opt_desc[i++]; 4676 const char *optdsc = opt_desc[i]; 4677 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4678 } 4679 4680 (void) fprintf(fp, gettext("\nThe following permissions are " 4681 "supported:\n\n")); 4682 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4683 gettext("NOTES")); 4684 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4685 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4686 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4687 const char *perm_type = deleg_perm_type(perm_note); 4688 const char *perm_comment = deleg_perm_comment(perm_note); 4689 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4690 } 4691 4692 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4693 zprop_desc_t *pd = &pdtbl[i]; 4694 if (pd->pd_visible != B_TRUE) 4695 continue; 4696 4697 if (pd->pd_attr == PROP_READONLY) 4698 continue; 4699 4700 props[count++] = pd->pd_name; 4701 } 4702 props[count] = NULL; 4703 4704 qsort(props, count, sizeof (char *), prop_cmp); 4705 4706 for (i = 0; i < count; i++) 4707 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4708 4709 if (msg != NULL) 4710 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4711 4712 exit(requested ? 0 : 2); 4713} 4714 4715static inline const char * 4716munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4717 char **permsp) 4718{ 4719 if (un && argc == expected_argc - 1) 4720 *permsp = NULL; 4721 else if (argc == expected_argc) 4722 *permsp = argv[argc - 2]; 4723 else 4724 allow_usage(un, B_FALSE, 4725 gettext("wrong number of parameters\n")); 4726 4727 return (argv[argc - 1]); 4728} 4729 4730static void 4731parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4732{ 4733 int uge_sum = opts->user + opts->group + opts->everyone; 4734 int csuge_sum = opts->create + opts->set + uge_sum; 4735 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4736 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4737 4738 if (uge_sum > 1) 4739 allow_usage(un, B_FALSE, 4740 gettext("-u, -g, and -e are mutually exclusive\n")); 4741 4742 if (opts->prt_usage) 4743 if (argc == 0 && all_sum == 0) 4744 allow_usage(un, B_TRUE, NULL); 4745 else 4746 usage(B_FALSE); 4747 4748 if (opts->set) { 4749 if (csuge_sum > 1) 4750 allow_usage(un, B_FALSE, 4751 gettext("invalid options combined with -s\n")); 4752 4753 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4754 if (argv[0][0] != '@') 4755 allow_usage(un, B_FALSE, 4756 gettext("invalid set name: missing '@' prefix\n")); 4757 opts->who = argv[0]; 4758 } else if (opts->create) { 4759 if (ldcsuge_sum > 1) 4760 allow_usage(un, B_FALSE, 4761 gettext("invalid options combined with -c\n")); 4762 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4763 } else if (opts->everyone) { 4764 if (csuge_sum > 1) 4765 allow_usage(un, B_FALSE, 4766 gettext("invalid options combined with -e\n")); 4767 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4768 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4769 == 0) { 4770 opts->everyone = B_TRUE; 4771 argc--; 4772 argv++; 4773 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4774 } else if (argc == 1 && !un) { 4775 opts->prt_perms = B_TRUE; 4776 opts->dataset = argv[argc-1]; 4777 } else { 4778 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4779 opts->who = argv[0]; 4780 } 4781 4782 if (!opts->local && !opts->descend) { 4783 opts->local = B_TRUE; 4784 opts->descend = B_TRUE; 4785 } 4786} 4787 4788static void 4789store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4790 const char *who, char *perms, nvlist_t *top_nvl) 4791{ 4792 int i; 4793 char ld[2] = { '\0', '\0' }; 4794 char who_buf[ZFS_MAXNAMELEN+32]; 4795 char base_type; 4796 char set_type; 4797 nvlist_t *base_nvl = NULL; 4798 nvlist_t *set_nvl = NULL; 4799 nvlist_t *nvl; 4800 4801 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4802 nomem(); 4803 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4804 nomem(); 4805 4806 switch (type) { 4807 case ZFS_DELEG_NAMED_SET_SETS: 4808 case ZFS_DELEG_NAMED_SET: 4809 set_type = ZFS_DELEG_NAMED_SET_SETS; 4810 base_type = ZFS_DELEG_NAMED_SET; 4811 ld[0] = ZFS_DELEG_NA; 4812 break; 4813 case ZFS_DELEG_CREATE_SETS: 4814 case ZFS_DELEG_CREATE: 4815 set_type = ZFS_DELEG_CREATE_SETS; 4816 base_type = ZFS_DELEG_CREATE; 4817 ld[0] = ZFS_DELEG_NA; 4818 break; 4819 case ZFS_DELEG_USER_SETS: 4820 case ZFS_DELEG_USER: 4821 set_type = ZFS_DELEG_USER_SETS; 4822 base_type = ZFS_DELEG_USER; 4823 if (local) 4824 ld[0] = ZFS_DELEG_LOCAL; 4825 if (descend) 4826 ld[1] = ZFS_DELEG_DESCENDENT; 4827 break; 4828 case ZFS_DELEG_GROUP_SETS: 4829 case ZFS_DELEG_GROUP: 4830 set_type = ZFS_DELEG_GROUP_SETS; 4831 base_type = ZFS_DELEG_GROUP; 4832 if (local) 4833 ld[0] = ZFS_DELEG_LOCAL; 4834 if (descend) 4835 ld[1] = ZFS_DELEG_DESCENDENT; 4836 break; 4837 case ZFS_DELEG_EVERYONE_SETS: 4838 case ZFS_DELEG_EVERYONE: 4839 set_type = ZFS_DELEG_EVERYONE_SETS; 4840 base_type = ZFS_DELEG_EVERYONE; 4841 if (local) 4842 ld[0] = ZFS_DELEG_LOCAL; 4843 if (descend) 4844 ld[1] = ZFS_DELEG_DESCENDENT; 4845 } 4846 4847 if (perms != NULL) { 4848 char *curr = perms; 4849 char *end = curr + strlen(perms); 4850 4851 while (curr < end) { 4852 char *delim = strchr(curr, ','); 4853 if (delim == NULL) 4854 delim = end; 4855 else 4856 *delim = '\0'; 4857 4858 if (curr[0] == '@') 4859 nvl = set_nvl; 4860 else 4861 nvl = base_nvl; 4862 4863 (void) nvlist_add_boolean(nvl, curr); 4864 if (delim != end) 4865 *delim = ','; 4866 curr = delim + 1; 4867 } 4868 4869 for (i = 0; i < 2; i++) { 4870 char locality = ld[i]; 4871 if (locality == 0) 4872 continue; 4873 4874 if (!nvlist_empty(base_nvl)) { 4875 if (who != NULL) 4876 (void) snprintf(who_buf, 4877 sizeof (who_buf), "%c%c$%s", 4878 base_type, locality, who); 4879 else 4880 (void) snprintf(who_buf, 4881 sizeof (who_buf), "%c%c$", 4882 base_type, locality); 4883 4884 (void) nvlist_add_nvlist(top_nvl, who_buf, 4885 base_nvl); 4886 } 4887 4888 4889 if (!nvlist_empty(set_nvl)) { 4890 if (who != NULL) 4891 (void) snprintf(who_buf, 4892 sizeof (who_buf), "%c%c$%s", 4893 set_type, locality, who); 4894 else 4895 (void) snprintf(who_buf, 4896 sizeof (who_buf), "%c%c$", 4897 set_type, locality); 4898 4899 (void) nvlist_add_nvlist(top_nvl, who_buf, 4900 set_nvl); 4901 } 4902 } 4903 } else { 4904 for (i = 0; i < 2; i++) { 4905 char locality = ld[i]; 4906 if (locality == 0) 4907 continue; 4908 4909 if (who != NULL) 4910 (void) snprintf(who_buf, sizeof (who_buf), 4911 "%c%c$%s", base_type, locality, who); 4912 else 4913 (void) snprintf(who_buf, sizeof (who_buf), 4914 "%c%c$", base_type, locality); 4915 (void) nvlist_add_boolean(top_nvl, who_buf); 4916 4917 if (who != NULL) 4918 (void) snprintf(who_buf, sizeof (who_buf), 4919 "%c%c$%s", set_type, locality, who); 4920 else 4921 (void) snprintf(who_buf, sizeof (who_buf), 4922 "%c%c$", set_type, locality); 4923 (void) nvlist_add_boolean(top_nvl, who_buf); 4924 } 4925 } 4926} 4927 4928static int 4929construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4930{ 4931 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4932 nomem(); 4933 4934 if (opts->set) { 4935 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4936 opts->descend, opts->who, opts->perms, *nvlp); 4937 } else if (opts->create) { 4938 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4939 opts->descend, NULL, opts->perms, *nvlp); 4940 } else if (opts->everyone) { 4941 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4942 opts->descend, NULL, opts->perms, *nvlp); 4943 } else { 4944 char *curr = opts->who; 4945 char *end = curr + strlen(curr); 4946 4947 while (curr < end) { 4948 const char *who; 4949 zfs_deleg_who_type_t who_type; 4950 char *endch; 4951 char *delim = strchr(curr, ','); 4952 char errbuf[256]; 4953 char id[64]; 4954 struct passwd *p = NULL; 4955 struct group *g = NULL; 4956 4957 uid_t rid; 4958 if (delim == NULL) 4959 delim = end; 4960 else 4961 *delim = '\0'; 4962 4963 rid = (uid_t)strtol(curr, &endch, 0); 4964 if (opts->user) { 4965 who_type = ZFS_DELEG_USER; 4966 if (*endch != '\0') 4967 p = getpwnam(curr); 4968 else 4969 p = getpwuid(rid); 4970 4971 if (p != NULL) 4972 rid = p->pw_uid; 4973 else { 4974 (void) snprintf(errbuf, 256, gettext( 4975 "invalid user %s"), curr); 4976 allow_usage(un, B_TRUE, errbuf); 4977 } 4978 } else if (opts->group) { 4979 who_type = ZFS_DELEG_GROUP; 4980 if (*endch != '\0') 4981 g = getgrnam(curr); 4982 else 4983 g = getgrgid(rid); 4984 4985 if (g != NULL) 4986 rid = g->gr_gid; 4987 else { 4988 (void) snprintf(errbuf, 256, gettext( 4989 "invalid group %s"), curr); 4990 allow_usage(un, B_TRUE, errbuf); 4991 } 4992 } else { 4993 if (*endch != '\0') { 4994 p = getpwnam(curr); 4995 } else { 4996 p = getpwuid(rid); 4997 } 4998 4999 if (p == NULL) 5000 if (*endch != '\0') { 5001 g = getgrnam(curr); 5002 } else { 5003 g = getgrgid(rid); 5004 } 5005 5006 if (p != NULL) { 5007 who_type = ZFS_DELEG_USER; 5008 rid = p->pw_uid; 5009 } else if (g != NULL) { 5010 who_type = ZFS_DELEG_GROUP; 5011 rid = g->gr_gid; 5012 } else { 5013 (void) snprintf(errbuf, 256, gettext( 5014 "invalid user/group %s"), curr); 5015 allow_usage(un, B_TRUE, errbuf); 5016 } 5017 } 5018 5019 (void) sprintf(id, "%u", rid); 5020 who = id; 5021 5022 store_allow_perm(who_type, opts->local, 5023 opts->descend, who, opts->perms, *nvlp); 5024 curr = delim + 1; 5025 } 5026 } 5027 5028 return (0); 5029} 5030 5031static void 5032print_set_creat_perms(uu_avl_t *who_avl) 5033{ 5034 const char *sc_title[] = { 5035 gettext("Permission sets:\n"), 5036 gettext("Create time permissions:\n"), 5037 NULL 5038 }; 5039 const char **title_ptr = sc_title; 5040 who_perm_node_t *who_node = NULL; 5041 int prev_weight = -1; 5042 5043 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5044 who_node = uu_avl_next(who_avl, who_node)) { 5045 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5046 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5047 const char *who_name = who_node->who_perm.who_name; 5048 int weight = who_type2weight(who_type); 5049 boolean_t first = B_TRUE; 5050 deleg_perm_node_t *deleg_node; 5051 5052 if (prev_weight != weight) { 5053 (void) printf(*title_ptr++); 5054 prev_weight = weight; 5055 } 5056 5057 if (who_name == NULL || strnlen(who_name, 1) == 0) 5058 (void) printf("\t"); 5059 else 5060 (void) printf("\t%s ", who_name); 5061 5062 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5063 deleg_node = uu_avl_next(avl, deleg_node)) { 5064 if (first) { 5065 (void) printf("%s", 5066 deleg_node->dpn_perm.dp_name); 5067 first = B_FALSE; 5068 } else 5069 (void) printf(",%s", 5070 deleg_node->dpn_perm.dp_name); 5071 } 5072 5073 (void) printf("\n"); 5074 } 5075} 5076 5077static void inline 5078print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5079 const char *title) 5080{ 5081 who_perm_node_t *who_node = NULL; 5082 boolean_t prt_title = B_TRUE; 5083 uu_avl_walk_t *walk; 5084 5085 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5086 nomem(); 5087 5088 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5089 const char *who_name = who_node->who_perm.who_name; 5090 const char *nice_who_name = who_node->who_perm.who_ug_name; 5091 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5092 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5093 char delim = ' '; 5094 deleg_perm_node_t *deleg_node; 5095 boolean_t prt_who = B_TRUE; 5096 5097 for (deleg_node = uu_avl_first(avl); 5098 deleg_node != NULL; 5099 deleg_node = uu_avl_next(avl, deleg_node)) { 5100 if (local != deleg_node->dpn_perm.dp_local || 5101 descend != deleg_node->dpn_perm.dp_descend) 5102 continue; 5103 5104 if (prt_who) { 5105 const char *who = NULL; 5106 if (prt_title) { 5107 prt_title = B_FALSE; 5108 (void) printf(title); 5109 } 5110 5111 switch (who_type) { 5112 case ZFS_DELEG_USER_SETS: 5113 case ZFS_DELEG_USER: 5114 who = gettext("user"); 5115 if (nice_who_name) 5116 who_name = nice_who_name; 5117 break; 5118 case ZFS_DELEG_GROUP_SETS: 5119 case ZFS_DELEG_GROUP: 5120 who = gettext("group"); 5121 if (nice_who_name) 5122 who_name = nice_who_name; 5123 break; 5124 case ZFS_DELEG_EVERYONE_SETS: 5125 case ZFS_DELEG_EVERYONE: 5126 who = gettext("everyone"); 5127 who_name = NULL; 5128 } 5129 5130 prt_who = B_FALSE; 5131 if (who_name == NULL) 5132 (void) printf("\t%s", who); 5133 else 5134 (void) printf("\t%s %s", who, who_name); 5135 } 5136 5137 (void) printf("%c%s", delim, 5138 deleg_node->dpn_perm.dp_name); 5139 delim = ','; 5140 } 5141 5142 if (!prt_who) 5143 (void) printf("\n"); 5144 } 5145 5146 uu_avl_walk_end(walk); 5147} 5148 5149static void 5150print_fs_perms(fs_perm_set_t *fspset) 5151{ 5152 fs_perm_node_t *node = NULL; 5153 char buf[ZFS_MAXNAMELEN+32]; 5154 const char *dsname = buf; 5155 5156 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5157 node = uu_list_next(fspset->fsps_list, node)) { 5158 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5159 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5160 int left = 0; 5161 5162 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5163 gettext("---- Permissions on %s "), 5164 node->fspn_fsperm.fsp_name); 5165 (void) printf(dsname); 5166 left = 70 - strlen(buf); 5167 while (left-- > 0) 5168 (void) printf("-"); 5169 (void) printf("\n"); 5170 5171 print_set_creat_perms(sc_avl); 5172 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5173 gettext("Local permissions:\n")); 5174 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5175 gettext("Descendent permissions:\n")); 5176 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5177 gettext("Local+Descendent permissions:\n")); 5178 } 5179} 5180 5181static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5182 5183struct deleg_perms { 5184 boolean_t un; 5185 nvlist_t *nvl; 5186}; 5187 5188static int 5189set_deleg_perms(zfs_handle_t *zhp, void *data) 5190{ 5191 struct deleg_perms *perms = (struct deleg_perms *)data; 5192 zfs_type_t zfs_type = zfs_get_type(zhp); 5193 5194 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5195 return (0); 5196 5197 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5198} 5199 5200static int 5201zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5202{ 5203 zfs_handle_t *zhp; 5204 nvlist_t *perm_nvl = NULL; 5205 nvlist_t *update_perm_nvl = NULL; 5206 int error = 1; 5207 int c; 5208 struct allow_opts opts = { 0 }; 5209 5210 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5211 5212 /* check opts */ 5213 while ((c = getopt(argc, argv, optstr)) != -1) { 5214 switch (c) { 5215 case 'l': 5216 opts.local = B_TRUE; 5217 break; 5218 case 'd': 5219 opts.descend = B_TRUE; 5220 break; 5221 case 'u': 5222 opts.user = B_TRUE; 5223 break; 5224 case 'g': 5225 opts.group = B_TRUE; 5226 break; 5227 case 'e': 5228 opts.everyone = B_TRUE; 5229 break; 5230 case 's': 5231 opts.set = B_TRUE; 5232 break; 5233 case 'c': 5234 opts.create = B_TRUE; 5235 break; 5236 case 'r': 5237 opts.recursive = B_TRUE; 5238 break; 5239 case ':': 5240 (void) fprintf(stderr, gettext("missing argument for " 5241 "'%c' option\n"), optopt); 5242 usage(B_FALSE); 5243 break; 5244 case 'h': 5245 opts.prt_usage = B_TRUE; 5246 break; 5247 case '?': 5248 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5249 optopt); 5250 usage(B_FALSE); 5251 } 5252 } 5253 5254 argc -= optind; 5255 argv += optind; 5256 5257 /* check arguments */ 5258 parse_allow_args(argc, argv, un, &opts); 5259 5260 /* try to open the dataset */ 5261 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5262 ZFS_TYPE_VOLUME)) == NULL) { 5263 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5264 opts.dataset); 5265 return (-1); 5266 } 5267 5268 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5269 goto cleanup2; 5270 5271 fs_perm_set_init(&fs_perm_set); 5272 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5273 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5274 goto cleanup1; 5275 } 5276 5277 if (opts.prt_perms) 5278 print_fs_perms(&fs_perm_set); 5279 else { 5280 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5281 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5282 goto cleanup0; 5283 5284 if (un && opts.recursive) { 5285 struct deleg_perms data = { un, update_perm_nvl }; 5286 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5287 &data) != 0) 5288 goto cleanup0; 5289 } 5290 } 5291 5292 error = 0; 5293 5294cleanup0: 5295 nvlist_free(perm_nvl); 5296 if (update_perm_nvl != NULL) 5297 nvlist_free(update_perm_nvl); 5298cleanup1: 5299 fs_perm_set_fini(&fs_perm_set); 5300cleanup2: 5301 zfs_close(zhp); 5302 5303 return (error); 5304} 5305 5306static int 5307zfs_do_allow(int argc, char **argv) 5308{ 5309 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5310} 5311 5312static int 5313zfs_do_unallow(int argc, char **argv) 5314{ 5315 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5316} 5317 5318static int 5319zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5320{ 5321 int errors = 0; 5322 int i; 5323 const char *tag; 5324 boolean_t recursive = B_FALSE; 5325 const char *opts = holding ? "rt" : "r"; 5326 int c; 5327 5328 /* check options */ 5329 while ((c = getopt(argc, argv, opts)) != -1) { 5330 switch (c) { 5331 case 'r': 5332 recursive = B_TRUE; 5333 break; 5334 case '?': 5335 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5336 optopt); 5337 usage(B_FALSE); 5338 } 5339 } 5340 5341 argc -= optind; 5342 argv += optind; 5343 5344 /* check number of arguments */ 5345 if (argc < 2) 5346 usage(B_FALSE); 5347 5348 tag = argv[0]; 5349 --argc; 5350 ++argv; 5351 5352 if (holding && tag[0] == '.') { 5353 /* tags starting with '.' are reserved for libzfs */ 5354 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5355 usage(B_FALSE); 5356 } 5357 5358 for (i = 0; i < argc; ++i) { 5359 zfs_handle_t *zhp; 5360 char parent[ZFS_MAXNAMELEN]; 5361 const char *delim; 5362 char *path = argv[i]; 5363 5364 delim = strchr(path, '@'); 5365 if (delim == NULL) { 5366 (void) fprintf(stderr, 5367 gettext("'%s' is not a snapshot\n"), path); 5368 ++errors; 5369 continue; 5370 } 5371 (void) strncpy(parent, path, delim - path); 5372 parent[delim - path] = '\0'; 5373 5374 zhp = zfs_open(g_zfs, parent, 5375 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5376 if (zhp == NULL) { 5377 ++errors; 5378 continue; 5379 } 5380 if (holding) { 5381 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5382 ++errors; 5383 } else { 5384 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5385 ++errors; 5386 } 5387 zfs_close(zhp); 5388 } 5389 5390 return (errors != 0); 5391} 5392 5393/* 5394 * zfs hold [-r] [-t] <tag> <snap> ... 5395 * 5396 * -r Recursively hold 5397 * 5398 * Apply a user-hold with the given tag to the list of snapshots. 5399 */ 5400static int 5401zfs_do_hold(int argc, char **argv) 5402{ 5403 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5404} 5405 5406/* 5407 * zfs release [-r] <tag> <snap> ... 5408 * 5409 * -r Recursively release 5410 * 5411 * Release a user-hold with the given tag from the list of snapshots. 5412 */ 5413static int 5414zfs_do_release(int argc, char **argv) 5415{ 5416 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5417} 5418 5419typedef struct holds_cbdata { 5420 boolean_t cb_recursive; 5421 const char *cb_snapname; 5422 nvlist_t **cb_nvlp; 5423 size_t cb_max_namelen; 5424 size_t cb_max_taglen; 5425} holds_cbdata_t; 5426 5427#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5428#define DATETIME_BUF_LEN (32) 5429/* 5430 * 5431 */ 5432static void 5433print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5434{ 5435 int i; 5436 nvpair_t *nvp = NULL; 5437 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5438 const char *col; 5439 5440 if (!scripted) { 5441 for (i = 0; i < 3; i++) { 5442 col = gettext(hdr_cols[i]); 5443 if (i < 2) 5444 (void) printf("%-*s ", i ? tagwidth : nwidth, 5445 col); 5446 else 5447 (void) printf("%s\n", col); 5448 } 5449 } 5450 5451 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5452 char *zname = nvpair_name(nvp); 5453 nvlist_t *nvl2; 5454 nvpair_t *nvp2 = NULL; 5455 (void) nvpair_value_nvlist(nvp, &nvl2); 5456 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5457 char tsbuf[DATETIME_BUF_LEN]; 5458 char *tagname = nvpair_name(nvp2); 5459 uint64_t val = 0; 5460 time_t time; 5461 struct tm t; 5462 char sep = scripted ? '\t' : ' '; 5463 size_t sepnum = scripted ? 1 : 2; 5464 5465 (void) nvpair_value_uint64(nvp2, &val); 5466 time = (time_t)val; 5467 (void) localtime_r(&time, &t); 5468 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5469 gettext(STRFTIME_FMT_STR), &t); 5470 5471 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5472 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5473 } 5474 } 5475} 5476 5477/* 5478 * Generic callback function to list a dataset or snapshot. 5479 */ 5480static int 5481holds_callback(zfs_handle_t *zhp, void *data) 5482{ 5483 holds_cbdata_t *cbp = data; 5484 nvlist_t *top_nvl = *cbp->cb_nvlp; 5485 nvlist_t *nvl = NULL; 5486 nvpair_t *nvp = NULL; 5487 const char *zname = zfs_get_name(zhp); 5488 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5489 5490 if (cbp->cb_recursive) { 5491 const char *snapname; 5492 char *delim = strchr(zname, '@'); 5493 if (delim == NULL) 5494 return (0); 5495 5496 snapname = delim + 1; 5497 if (strcmp(cbp->cb_snapname, snapname)) 5498 return (0); 5499 } 5500 5501 if (zfs_get_holds(zhp, &nvl) != 0) 5502 return (-1); 5503 5504 if (znamelen > cbp->cb_max_namelen) 5505 cbp->cb_max_namelen = znamelen; 5506 5507 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5508 const char *tag = nvpair_name(nvp); 5509 size_t taglen = strnlen(tag, MAXNAMELEN); 5510 if (taglen > cbp->cb_max_taglen) 5511 cbp->cb_max_taglen = taglen; 5512 } 5513 5514 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5515} 5516 5517/* 5518 * zfs holds [-r] <snap> ... 5519 * 5520 * -r Recursively hold 5521 */ 5522static int 5523zfs_do_holds(int argc, char **argv) 5524{ 5525 int errors = 0; 5526 int c; 5527 int i; 5528 boolean_t scripted = B_FALSE; 5529 boolean_t recursive = B_FALSE; 5530 const char *opts = "rH"; 5531 nvlist_t *nvl; 5532 5533 int types = ZFS_TYPE_SNAPSHOT; 5534 holds_cbdata_t cb = { 0 }; 5535 5536 int limit = 0; 5537 int ret = 0; 5538 int flags = 0; 5539 5540 /* check options */ 5541 while ((c = getopt(argc, argv, opts)) != -1) { 5542 switch (c) { 5543 case 'r': 5544 recursive = B_TRUE; 5545 break; 5546 case 'H': 5547 scripted = B_TRUE; 5548 break; 5549 case '?': 5550 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5551 optopt); 5552 usage(B_FALSE); 5553 } 5554 } 5555 5556 if (recursive) { 5557 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5558 flags |= ZFS_ITER_RECURSE; 5559 } 5560 5561 argc -= optind; 5562 argv += optind; 5563 5564 /* check number of arguments */ 5565 if (argc < 1) 5566 usage(B_FALSE); 5567 5568 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5569 nomem(); 5570 5571 for (i = 0; i < argc; ++i) { 5572 char *snapshot = argv[i]; 5573 const char *delim; 5574 const char *snapname; 5575 5576 delim = strchr(snapshot, '@'); 5577 if (delim == NULL) { 5578 (void) fprintf(stderr, 5579 gettext("'%s' is not a snapshot\n"), snapshot); 5580 ++errors; 5581 continue; 5582 } 5583 snapname = delim + 1; 5584 if (recursive) 5585 snapshot[delim - snapshot] = '\0'; 5586 5587 cb.cb_recursive = recursive; 5588 cb.cb_snapname = snapname; 5589 cb.cb_nvlp = &nvl; 5590 5591 /* 5592 * 1. collect holds data, set format options 5593 */ 5594 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5595 holds_callback, &cb); 5596 if (ret != 0) 5597 ++errors; 5598 } 5599 5600 /* 5601 * 2. print holds data 5602 */ 5603 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5604 5605 if (nvlist_empty(nvl)) 5606 (void) printf(gettext("no datasets available\n")); 5607 5608 nvlist_free(nvl); 5609 5610 return (0 != errors); 5611} 5612 5613#define CHECK_SPINNER 30 5614#define SPINNER_TIME 3 /* seconds */ 5615#define MOUNT_TIME 5 /* seconds */ 5616 5617static int 5618get_one_dataset(zfs_handle_t *zhp, void *data) 5619{ 5620 static char *spin[] = { "-", "\\", "|", "/" }; 5621 static int spinval = 0; 5622 static int spincheck = 0; 5623 static time_t last_spin_time = (time_t)0; 5624 get_all_cb_t *cbp = data; 5625 zfs_type_t type = zfs_get_type(zhp); 5626 5627 if (cbp->cb_verbose) { 5628 if (--spincheck < 0) { 5629 time_t now = time(NULL); 5630 if (last_spin_time + SPINNER_TIME < now) { 5631 update_progress(spin[spinval++ % 4]); 5632 last_spin_time = now; 5633 } 5634 spincheck = CHECK_SPINNER; 5635 } 5636 } 5637 5638 /* 5639 * Interate over any nested datasets. 5640 */ 5641 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5642 zfs_close(zhp); 5643 return (1); 5644 } 5645 5646 /* 5647 * Skip any datasets whose type does not match. 5648 */ 5649 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5650 zfs_close(zhp); 5651 return (0); 5652 } 5653 libzfs_add_handle(cbp, zhp); 5654 assert(cbp->cb_used <= cbp->cb_alloc); 5655 5656 return (0); 5657} 5658 5659static void 5660get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5661{ 5662 get_all_cb_t cb = { 0 }; 5663 cb.cb_verbose = verbose; 5664 cb.cb_getone = get_one_dataset; 5665 5666 if (verbose) 5667 set_progress_header(gettext("Reading ZFS config")); 5668 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5669 5670 *dslist = cb.cb_handles; 5671 *count = cb.cb_used; 5672 5673 if (verbose) 5674 finish_progress(gettext("done.")); 5675} 5676 5677/* 5678 * Generic callback for sharing or mounting filesystems. Because the code is so 5679 * similar, we have a common function with an extra parameter to determine which 5680 * mode we are using. 5681 */ 5682#define OP_SHARE 0x1 5683#define OP_MOUNT 0x2 5684 5685/* 5686 * Share or mount a dataset. 5687 */ 5688static int 5689share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5690 boolean_t explicit, const char *options) 5691{ 5692 char mountpoint[ZFS_MAXPROPLEN]; 5693 char shareopts[ZFS_MAXPROPLEN]; 5694 char smbshareopts[ZFS_MAXPROPLEN]; 5695 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5696 struct mnttab mnt; 5697 uint64_t zoned, canmount; 5698 boolean_t shared_nfs, shared_smb; 5699 5700 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5701 5702 /* 5703 * Check to make sure we can mount/share this dataset. If we 5704 * are in the global zone and the filesystem is exported to a 5705 * local zone, or if we are in a local zone and the 5706 * filesystem is not exported, then it is an error. 5707 */ 5708 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5709 5710 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5711 if (!explicit) 5712 return (0); 5713 5714 (void) fprintf(stderr, gettext("cannot %s '%s': " 5715 "dataset is exported to a local zone\n"), cmdname, 5716 zfs_get_name(zhp)); 5717 return (1); 5718 5719 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5720 if (!explicit) 5721 return (0); 5722 5723 (void) fprintf(stderr, gettext("cannot %s '%s': " 5724 "permission denied\n"), cmdname, 5725 zfs_get_name(zhp)); 5726 return (1); 5727 } 5728 5729 /* 5730 * Ignore any filesystems which don't apply to us. This 5731 * includes those with a legacy mountpoint, or those with 5732 * legacy share options. 5733 */ 5734 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5735 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5736 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5737 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5738 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5739 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5740 5741 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5742 strcmp(smbshareopts, "off") == 0) { 5743 if (!explicit) 5744 return (0); 5745 5746 (void) fprintf(stderr, gettext("cannot share '%s': " 5747 "legacy share\n"), zfs_get_name(zhp)); 5748 (void) fprintf(stderr, gettext("to " 5749 "share this filesystem set " 5750 "sharenfs property on\n")); 5751 return (1); 5752 } 5753 5754 /* 5755 * We cannot share or mount legacy filesystems. If the 5756 * shareopts is non-legacy but the mountpoint is legacy, we 5757 * treat it as a legacy share. 5758 */ 5759 if (strcmp(mountpoint, "legacy") == 0) { 5760 if (!explicit) 5761 return (0); 5762 5763 (void) fprintf(stderr, gettext("cannot %s '%s': " 5764 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5765 (void) fprintf(stderr, gettext("use %s(8) to " 5766 "%s this filesystem\n"), cmdname, cmdname); 5767 return (1); 5768 } 5769 5770 if (strcmp(mountpoint, "none") == 0) { 5771 if (!explicit) 5772 return (0); 5773 5774 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5775 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5776 return (1); 5777 } 5778 5779 /* 5780 * canmount explicit outcome 5781 * on no pass through 5782 * on yes pass through 5783 * off no return 0 5784 * off yes display error, return 1 5785 * noauto no return 0 5786 * noauto yes pass through 5787 */ 5788 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5789 if (canmount == ZFS_CANMOUNT_OFF) { 5790 if (!explicit) 5791 return (0); 5792 5793 (void) fprintf(stderr, gettext("cannot %s '%s': " 5794 "'canmount' property is set to 'off'\n"), cmdname, 5795 zfs_get_name(zhp)); 5796 return (1); 5797 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5798 return (0); 5799 } 5800 5801 /* 5802 * At this point, we have verified that the mountpoint and/or 5803 * shareopts are appropriate for auto management. If the 5804 * filesystem is already mounted or shared, return (failing 5805 * for explicit requests); otherwise mount or share the 5806 * filesystem. 5807 */ 5808 switch (op) { 5809 case OP_SHARE: 5810 5811 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5812 shared_smb = zfs_is_shared_smb(zhp, NULL); 5813 5814 if (shared_nfs && shared_smb || 5815 (shared_nfs && strcmp(shareopts, "on") == 0 && 5816 strcmp(smbshareopts, "off") == 0) || 5817 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5818 strcmp(shareopts, "off") == 0)) { 5819 if (!explicit) 5820 return (0); 5821 5822 (void) fprintf(stderr, gettext("cannot share " 5823 "'%s': filesystem already shared\n"), 5824 zfs_get_name(zhp)); 5825 return (1); 5826 } 5827 5828 if (!zfs_is_mounted(zhp, NULL) && 5829 zfs_mount(zhp, NULL, 0) != 0) 5830 return (1); 5831 5832 if (protocol == NULL) { 5833 if (zfs_shareall(zhp) != 0) 5834 return (1); 5835 } else if (strcmp(protocol, "nfs") == 0) { 5836 if (zfs_share_nfs(zhp)) 5837 return (1); 5838 } else if (strcmp(protocol, "smb") == 0) { 5839 if (zfs_share_smb(zhp)) 5840 return (1); 5841 } else { 5842 (void) fprintf(stderr, gettext("cannot share " 5843 "'%s': invalid share type '%s' " 5844 "specified\n"), 5845 zfs_get_name(zhp), protocol); 5846 return (1); 5847 } 5848 5849 break; 5850 5851 case OP_MOUNT: 5852 if (options == NULL) 5853 mnt.mnt_mntopts = ""; 5854 else 5855 mnt.mnt_mntopts = (char *)options; 5856 5857 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5858 zfs_is_mounted(zhp, NULL)) { 5859 if (!explicit) 5860 return (0); 5861 5862 (void) fprintf(stderr, gettext("cannot mount " 5863 "'%s': filesystem already mounted\n"), 5864 zfs_get_name(zhp)); 5865 return (1); 5866 } 5867 5868 if (zfs_mount(zhp, options, flags) != 0) 5869 return (1); 5870 break; 5871 } 5872 5873 return (0); 5874} 5875 5876/* 5877 * Reports progress in the form "(current/total)". Not thread-safe. 5878 */ 5879static void 5880report_mount_progress(int current, int total) 5881{ 5882 static time_t last_progress_time = 0; 5883 time_t now = time(NULL); 5884 char info[32]; 5885 5886 /* report 1..n instead of 0..n-1 */ 5887 ++current; 5888 5889 /* display header if we're here for the first time */ 5890 if (current == 1) { 5891 set_progress_header(gettext("Mounting ZFS filesystems")); 5892 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5893 /* too soon to report again */ 5894 return; 5895 } 5896 5897 last_progress_time = now; 5898 5899 (void) sprintf(info, "(%d/%d)", current, total); 5900 5901 if (current == total) 5902 finish_progress(info); 5903 else 5904 update_progress(info); 5905} 5906 5907static void 5908append_options(char *mntopts, char *newopts) 5909{ 5910 int len = strlen(mntopts); 5911 5912 /* original length plus new string to append plus 1 for the comma */ 5913 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5914 (void) fprintf(stderr, gettext("the opts argument for " 5915 "'%c' option is too long (more than %d chars)\n"), 5916 "-o", MNT_LINE_MAX); 5917 usage(B_FALSE); 5918 } 5919 5920 if (*mntopts) 5921 mntopts[len++] = ','; 5922 5923 (void) strcpy(&mntopts[len], newopts); 5924} 5925 5926static int 5927share_mount(int op, int argc, char **argv) 5928{ 5929 int do_all = 0; 5930 boolean_t verbose = B_FALSE; 5931 int c, ret = 0; 5932 char *options = NULL; 5933 int flags = 0; 5934 5935 /* check options */ 5936 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5937 != -1) { 5938 switch (c) { 5939 case 'a': 5940 do_all = 1; 5941 break; 5942 case 'v': 5943 verbose = B_TRUE; 5944 break; 5945 case 'o': 5946 if (*optarg == '\0') { 5947 (void) fprintf(stderr, gettext("empty mount " 5948 "options (-o) specified\n")); 5949 usage(B_FALSE); 5950 } 5951 5952 if (options == NULL) 5953 options = safe_malloc(MNT_LINE_MAX + 1); 5954 5955 /* option validation is done later */ 5956 append_options(options, optarg); 5957 break; 5958 5959 case 'O': 5960 warnx("no overlay mounts support on FreeBSD, ignoring"); 5961 break; 5962 case ':': 5963 (void) fprintf(stderr, gettext("missing argument for " 5964 "'%c' option\n"), optopt); 5965 usage(B_FALSE); 5966 break; 5967 case '?': 5968 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5969 optopt); 5970 usage(B_FALSE); 5971 } 5972 } 5973 5974 argc -= optind; 5975 argv += optind; 5976 5977 /* check number of arguments */ 5978 if (do_all) { 5979 zfs_handle_t **dslist = NULL; 5980 size_t i, count = 0; 5981 char *protocol = NULL; 5982 5983 if (op == OP_SHARE && argc > 0) { 5984 if (strcmp(argv[0], "nfs") != 0 && 5985 strcmp(argv[0], "smb") != 0) { 5986 (void) fprintf(stderr, gettext("share type " 5987 "must be 'nfs' or 'smb'\n")); 5988 usage(B_FALSE); 5989 } 5990 protocol = argv[0]; 5991 argc--; 5992 argv++; 5993 } 5994 5995 if (argc != 0) { 5996 (void) fprintf(stderr, gettext("too many arguments\n")); 5997 usage(B_FALSE); 5998 } 5999 6000 start_progress_timer(); 6001 get_all_datasets(&dslist, &count, verbose); 6002 6003 if (count == 0) 6004 return (0); 6005 6006 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6007 6008 for (i = 0; i < count; i++) { 6009 if (verbose) 6010 report_mount_progress(i, count); 6011 6012 if (share_mount_one(dslist[i], op, flags, protocol, 6013 B_FALSE, options) != 0) 6014 ret = 1; 6015 zfs_close(dslist[i]); 6016 } 6017 6018 free(dslist); 6019 } else if (argc == 0) { 6020 struct mnttab entry; 6021 6022 if ((op == OP_SHARE) || (options != NULL)) { 6023 (void) fprintf(stderr, gettext("missing filesystem " 6024 "argument (specify -a for all)\n")); 6025 usage(B_FALSE); 6026 } 6027 6028 /* 6029 * When mount is given no arguments, go through /etc/mnttab and 6030 * display any active ZFS mounts. We hide any snapshots, since 6031 * they are controlled automatically. 6032 */ 6033 rewind(mnttab_file); 6034 while (getmntent(mnttab_file, &entry) == 0) { 6035 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6036 strchr(entry.mnt_special, '@') != NULL) 6037 continue; 6038 6039 (void) printf("%-30s %s\n", entry.mnt_special, 6040 entry.mnt_mountp); 6041 } 6042 6043 } else { 6044 zfs_handle_t *zhp; 6045 6046 if (argc > 1) { 6047 (void) fprintf(stderr, 6048 gettext("too many arguments\n")); 6049 usage(B_FALSE); 6050 } 6051 6052 if ((zhp = zfs_open(g_zfs, argv[0], 6053 ZFS_TYPE_FILESYSTEM)) == NULL) { 6054 ret = 1; 6055 } else { 6056 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6057 options); 6058 zfs_close(zhp); 6059 } 6060 } 6061 6062 return (ret); 6063} 6064 6065/* 6066 * zfs mount -a [nfs] 6067 * zfs mount filesystem 6068 * 6069 * Mount all filesystems, or mount the given filesystem. 6070 */ 6071static int 6072zfs_do_mount(int argc, char **argv) 6073{ 6074 return (share_mount(OP_MOUNT, argc, argv)); 6075} 6076 6077/* 6078 * zfs share -a [nfs | smb] 6079 * zfs share filesystem 6080 * 6081 * Share all filesystems, or share the given filesystem. 6082 */ 6083static int 6084zfs_do_share(int argc, char **argv) 6085{ 6086 return (share_mount(OP_SHARE, argc, argv)); 6087} 6088 6089typedef struct unshare_unmount_node { 6090 zfs_handle_t *un_zhp; 6091 char *un_mountp; 6092 uu_avl_node_t un_avlnode; 6093} unshare_unmount_node_t; 6094 6095/* ARGSUSED */ 6096static int 6097unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6098{ 6099 const unshare_unmount_node_t *l = larg; 6100 const unshare_unmount_node_t *r = rarg; 6101 6102 return (strcmp(l->un_mountp, r->un_mountp)); 6103} 6104 6105/* 6106 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6107 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6108 * and unmount it appropriately. 6109 */ 6110static int 6111unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6112{ 6113 zfs_handle_t *zhp; 6114 int ret = 0; 6115 struct stat64 statbuf; 6116 struct extmnttab entry; 6117 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6118 ino_t path_inode; 6119 6120 /* 6121 * Search for the path in /etc/mnttab. Rather than looking for the 6122 * specific path, which can be fooled by non-standard paths (i.e. ".." 6123 * or "//"), we stat() the path and search for the corresponding 6124 * (major,minor) device pair. 6125 */ 6126 if (stat64(path, &statbuf) != 0) { 6127 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6128 cmdname, path, strerror(errno)); 6129 return (1); 6130 } 6131 path_inode = statbuf.st_ino; 6132 6133 /* 6134 * Search for the given (major,minor) pair in the mount table. 6135 */ 6136#ifdef sun 6137 rewind(mnttab_file); 6138 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6139 if (entry.mnt_major == major(statbuf.st_dev) && 6140 entry.mnt_minor == minor(statbuf.st_dev)) 6141 break; 6142 } 6143#else 6144 { 6145 struct statfs sfs; 6146 6147 if (statfs(path, &sfs) != 0) { 6148 (void) fprintf(stderr, "%s: %s\n", path, 6149 strerror(errno)); 6150 ret = -1; 6151 } 6152 statfs2mnttab(&sfs, &entry); 6153 } 6154#endif 6155 if (ret != 0) { 6156 if (op == OP_SHARE) { 6157 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6158 "currently mounted\n"), cmdname, path); 6159 return (1); 6160 } 6161 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6162 path); 6163 if ((ret = umount2(path, flags)) != 0) 6164 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6165 strerror(errno)); 6166 return (ret != 0); 6167 } 6168 6169 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6170 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6171 "filesystem\n"), cmdname, path); 6172 return (1); 6173 } 6174 6175 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6176 ZFS_TYPE_FILESYSTEM)) == NULL) 6177 return (1); 6178 6179 ret = 1; 6180 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6181 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6182 cmdname, path, strerror(errno)); 6183 goto out; 6184 } else if (statbuf.st_ino != path_inode) { 6185 (void) fprintf(stderr, gettext("cannot " 6186 "%s '%s': not a mountpoint\n"), cmdname, path); 6187 goto out; 6188 } 6189 6190 if (op == OP_SHARE) { 6191 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6192 char smbshare_prop[ZFS_MAXPROPLEN]; 6193 6194 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6195 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6196 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6197 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6198 6199 if (strcmp(nfs_mnt_prop, "off") == 0 && 6200 strcmp(smbshare_prop, "off") == 0) { 6201 (void) fprintf(stderr, gettext("cannot unshare " 6202 "'%s': legacy share\n"), path); 6203#ifdef illumos 6204 (void) fprintf(stderr, gettext("use " 6205 "unshare(1M) to unshare this filesystem\n")); 6206#endif 6207 } else if (!zfs_is_shared(zhp)) { 6208 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6209 "not currently shared\n"), path); 6210 } else { 6211 ret = zfs_unshareall_bypath(zhp, path); 6212 } 6213 } else { 6214 char mtpt_prop[ZFS_MAXPROPLEN]; 6215 6216 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6217 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6218 6219 if (is_manual) { 6220 ret = zfs_unmount(zhp, NULL, flags); 6221 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6222 (void) fprintf(stderr, gettext("cannot unmount " 6223 "'%s': legacy mountpoint\n"), 6224 zfs_get_name(zhp)); 6225 (void) fprintf(stderr, gettext("use umount(8) " 6226 "to unmount this filesystem\n")); 6227 } else { 6228 ret = zfs_unmountall(zhp, flags); 6229 } 6230 } 6231 6232out: 6233 zfs_close(zhp); 6234 6235 return (ret != 0); 6236} 6237 6238/* 6239 * Generic callback for unsharing or unmounting a filesystem. 6240 */ 6241static int 6242unshare_unmount(int op, int argc, char **argv) 6243{ 6244 int do_all = 0; 6245 int flags = 0; 6246 int ret = 0; 6247 int c; 6248 zfs_handle_t *zhp; 6249 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6250 char sharesmb[ZFS_MAXPROPLEN]; 6251 6252 /* check options */ 6253 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6254 switch (c) { 6255 case 'a': 6256 do_all = 1; 6257 break; 6258 case 'f': 6259 flags = MS_FORCE; 6260 break; 6261 case '?': 6262 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6263 optopt); 6264 usage(B_FALSE); 6265 } 6266 } 6267 6268 argc -= optind; 6269 argv += optind; 6270 6271 if (do_all) { 6272 /* 6273 * We could make use of zfs_for_each() to walk all datasets in 6274 * the system, but this would be very inefficient, especially 6275 * since we would have to linearly search /etc/mnttab for each 6276 * one. Instead, do one pass through /etc/mnttab looking for 6277 * zfs entries and call zfs_unmount() for each one. 6278 * 6279 * Things get a little tricky if the administrator has created 6280 * mountpoints beneath other ZFS filesystems. In this case, we 6281 * have to unmount the deepest filesystems first. To accomplish 6282 * this, we place all the mountpoints in an AVL tree sorted by 6283 * the special type (dataset name), and walk the result in 6284 * reverse to make sure to get any snapshots first. 6285 */ 6286 struct mnttab entry; 6287 uu_avl_pool_t *pool; 6288 uu_avl_t *tree; 6289 unshare_unmount_node_t *node; 6290 uu_avl_index_t idx; 6291 uu_avl_walk_t *walk; 6292 6293 if (argc != 0) { 6294 (void) fprintf(stderr, gettext("too many arguments\n")); 6295 usage(B_FALSE); 6296 } 6297 6298 if (((pool = uu_avl_pool_create("unmount_pool", 6299 sizeof (unshare_unmount_node_t), 6300 offsetof(unshare_unmount_node_t, un_avlnode), 6301 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6302 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6303 nomem(); 6304 6305 rewind(mnttab_file); 6306 while (getmntent(mnttab_file, &entry) == 0) { 6307 6308 /* ignore non-ZFS entries */ 6309 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6310 continue; 6311 6312 /* ignore snapshots */ 6313 if (strchr(entry.mnt_special, '@') != NULL) 6314 continue; 6315 6316 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6317 ZFS_TYPE_FILESYSTEM)) == NULL) { 6318 ret = 1; 6319 continue; 6320 } 6321 6322 switch (op) { 6323 case OP_SHARE: 6324 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6325 nfs_mnt_prop, 6326 sizeof (nfs_mnt_prop), 6327 NULL, NULL, 0, B_FALSE) == 0); 6328 if (strcmp(nfs_mnt_prop, "off") != 0) 6329 break; 6330 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6331 nfs_mnt_prop, 6332 sizeof (nfs_mnt_prop), 6333 NULL, NULL, 0, B_FALSE) == 0); 6334 if (strcmp(nfs_mnt_prop, "off") == 0) 6335 continue; 6336 break; 6337 case OP_MOUNT: 6338 /* Ignore legacy mounts */ 6339 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6340 nfs_mnt_prop, 6341 sizeof (nfs_mnt_prop), 6342 NULL, NULL, 0, B_FALSE) == 0); 6343 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6344 continue; 6345 /* Ignore canmount=noauto mounts */ 6346 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6347 ZFS_CANMOUNT_NOAUTO) 6348 continue; 6349 default: 6350 break; 6351 } 6352 6353 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6354 node->un_zhp = zhp; 6355 node->un_mountp = safe_strdup(entry.mnt_mountp); 6356 6357 uu_avl_node_init(node, &node->un_avlnode, pool); 6358 6359 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6360 uu_avl_insert(tree, node, idx); 6361 } else { 6362 zfs_close(node->un_zhp); 6363 free(node->un_mountp); 6364 free(node); 6365 } 6366 } 6367 6368 /* 6369 * Walk the AVL tree in reverse, unmounting each filesystem and 6370 * removing it from the AVL tree in the process. 6371 */ 6372 if ((walk = uu_avl_walk_start(tree, 6373 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6374 nomem(); 6375 6376 while ((node = uu_avl_walk_next(walk)) != NULL) { 6377 uu_avl_remove(tree, node); 6378 6379 switch (op) { 6380 case OP_SHARE: 6381 if (zfs_unshareall_bypath(node->un_zhp, 6382 node->un_mountp) != 0) 6383 ret = 1; 6384 break; 6385 6386 case OP_MOUNT: 6387 if (zfs_unmount(node->un_zhp, 6388 node->un_mountp, flags) != 0) 6389 ret = 1; 6390 break; 6391 } 6392 6393 zfs_close(node->un_zhp); 6394 free(node->un_mountp); 6395 free(node); 6396 } 6397 6398 uu_avl_walk_end(walk); 6399 uu_avl_destroy(tree); 6400 uu_avl_pool_destroy(pool); 6401 6402 } else { 6403 if (argc != 1) { 6404 if (argc == 0) 6405 (void) fprintf(stderr, 6406 gettext("missing filesystem argument\n")); 6407 else 6408 (void) fprintf(stderr, 6409 gettext("too many arguments\n")); 6410 usage(B_FALSE); 6411 } 6412 6413 /* 6414 * We have an argument, but it may be a full path or a ZFS 6415 * filesystem. Pass full paths off to unmount_path() (shared by 6416 * manual_unmount), otherwise open the filesystem and pass to 6417 * zfs_unmount(). 6418 */ 6419 if (argv[0][0] == '/') 6420 return (unshare_unmount_path(op, argv[0], 6421 flags, B_FALSE)); 6422 6423 if ((zhp = zfs_open(g_zfs, argv[0], 6424 ZFS_TYPE_FILESYSTEM)) == NULL) 6425 return (1); 6426 6427 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6428 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6429 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6430 NULL, 0, B_FALSE) == 0); 6431 6432 switch (op) { 6433 case OP_SHARE: 6434 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6435 nfs_mnt_prop, 6436 sizeof (nfs_mnt_prop), 6437 NULL, NULL, 0, B_FALSE) == 0); 6438 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6439 sharesmb, sizeof (sharesmb), NULL, NULL, 6440 0, B_FALSE) == 0); 6441 6442 if (strcmp(nfs_mnt_prop, "off") == 0 && 6443 strcmp(sharesmb, "off") == 0) { 6444 (void) fprintf(stderr, gettext("cannot " 6445 "unshare '%s': legacy share\n"), 6446 zfs_get_name(zhp)); 6447#ifdef illumos 6448 (void) fprintf(stderr, gettext("use " 6449 "unshare(1M) to unshare this " 6450 "filesystem\n")); 6451#endif 6452 ret = 1; 6453 } else if (!zfs_is_shared(zhp)) { 6454 (void) fprintf(stderr, gettext("cannot " 6455 "unshare '%s': not currently " 6456 "shared\n"), zfs_get_name(zhp)); 6457 ret = 1; 6458 } else if (zfs_unshareall(zhp) != 0) { 6459 ret = 1; 6460 } 6461 break; 6462 6463 case OP_MOUNT: 6464 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6465 (void) fprintf(stderr, gettext("cannot " 6466 "unmount '%s': legacy " 6467 "mountpoint\n"), zfs_get_name(zhp)); 6468 (void) fprintf(stderr, gettext("use " 6469 "umount(8) to unmount this " 6470 "filesystem\n")); 6471 ret = 1; 6472 } else if (!zfs_is_mounted(zhp, NULL)) { 6473 (void) fprintf(stderr, gettext("cannot " 6474 "unmount '%s': not currently " 6475 "mounted\n"), 6476 zfs_get_name(zhp)); 6477 ret = 1; 6478 } else if (zfs_unmountall(zhp, flags) != 0) { 6479 ret = 1; 6480 } 6481 break; 6482 } 6483 6484 zfs_close(zhp); 6485 } 6486 6487 return (ret); 6488} 6489 6490/* 6491 * zfs unmount -a 6492 * zfs unmount filesystem 6493 * 6494 * Unmount all filesystems, or a specific ZFS filesystem. 6495 */ 6496static int 6497zfs_do_unmount(int argc, char **argv) 6498{ 6499 return (unshare_unmount(OP_MOUNT, argc, argv)); 6500} 6501 6502/* 6503 * zfs unshare -a 6504 * zfs unshare filesystem 6505 * 6506 * Unshare all filesystems, or a specific ZFS filesystem. 6507 */ 6508static int 6509zfs_do_unshare(int argc, char **argv) 6510{ 6511 return (unshare_unmount(OP_SHARE, argc, argv)); 6512} 6513 6514/* 6515 * Attach/detach the given dataset to/from the given jail 6516 */ 6517/* ARGSUSED */ 6518static int 6519do_jail(int argc, char **argv, int attach) 6520{ 6521 zfs_handle_t *zhp; 6522 int jailid, ret; 6523 6524 /* check number of arguments */ 6525 if (argc < 3) { 6526 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6527 usage(B_FALSE); 6528 } 6529 if (argc > 3) { 6530 (void) fprintf(stderr, gettext("too many arguments\n")); 6531 usage(B_FALSE); 6532 } 6533 6534 jailid = jail_getid(argv[1]); 6535 if (jailid < 0) { 6536 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 6537 usage(B_FALSE); 6538 } 6539 6540 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6541 if (zhp == NULL) 6542 return (1); 6543 6544 ret = (zfs_jail(zhp, jailid, attach) != 0); 6545 6546 zfs_close(zhp); 6547 return (ret); 6548} 6549 6550/* 6551 * zfs jail jailid filesystem 6552 * 6553 * Attach the given dataset to the given jail 6554 */ 6555/* ARGSUSED */ 6556static int 6557zfs_do_jail(int argc, char **argv) 6558{ 6559 6560 return (do_jail(argc, argv, 1)); 6561} 6562 6563/* 6564 * zfs unjail jailid filesystem 6565 * 6566 * Detach the given dataset from the given jail 6567 */ 6568/* ARGSUSED */ 6569static int 6570zfs_do_unjail(int argc, char **argv) 6571{ 6572 6573 return (do_jail(argc, argv, 0)); 6574} 6575 6576/* 6577 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6578 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6579 */ 6580static int 6581manual_mount(int argc, char **argv) 6582{ 6583 zfs_handle_t *zhp; 6584 char mountpoint[ZFS_MAXPROPLEN]; 6585 char mntopts[MNT_LINE_MAX] = { '\0' }; 6586 int ret = 0; 6587 int c; 6588 int flags = 0; 6589 char *dataset, *path; 6590 6591 /* check options */ 6592 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6593 switch (c) { 6594 case 'o': 6595 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6596 break; 6597 case 'O': 6598 flags |= MS_OVERLAY; 6599 break; 6600 case 'm': 6601 flags |= MS_NOMNTTAB; 6602 break; 6603 case ':': 6604 (void) fprintf(stderr, gettext("missing argument for " 6605 "'%c' option\n"), optopt); 6606 usage(B_FALSE); 6607 break; 6608 case '?': 6609 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6610 optopt); 6611 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6612 "<path>\n")); 6613 return (2); 6614 } 6615 } 6616 6617 argc -= optind; 6618 argv += optind; 6619 6620 /* check that we only have two arguments */ 6621 if (argc != 2) { 6622 if (argc == 0) 6623 (void) fprintf(stderr, gettext("missing dataset " 6624 "argument\n")); 6625 else if (argc == 1) 6626 (void) fprintf(stderr, 6627 gettext("missing mountpoint argument\n")); 6628 else 6629 (void) fprintf(stderr, gettext("too many arguments\n")); 6630 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6631 return (2); 6632 } 6633 6634 dataset = argv[0]; 6635 path = argv[1]; 6636 6637 /* try to open the dataset */ 6638 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6639 return (1); 6640 6641 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6642 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6643 6644 /* check for legacy mountpoint and complain appropriately */ 6645 ret = 0; 6646 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6647 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6648 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6649 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6650 strerror(errno)); 6651 ret = 1; 6652 } 6653 } else { 6654 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6655 "mounted using 'mount -t zfs'\n"), dataset); 6656 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6657 "instead.\n"), path); 6658 (void) fprintf(stderr, gettext("If you must use 'mount -t zfs' " 6659 "or /etc/fstab, use 'zfs set mountpoint=legacy'.\n")); 6660 (void) fprintf(stderr, gettext("See zfs(8) for more " 6661 "information.\n")); 6662 ret = 1; 6663 } 6664 6665 return (ret); 6666} 6667 6668/* 6669 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6670 * unmounts of non-legacy filesystems, as this is the dominant administrative 6671 * interface. 6672 */ 6673static int 6674manual_unmount(int argc, char **argv) 6675{ 6676 int flags = 0; 6677 int c; 6678 6679 /* check options */ 6680 while ((c = getopt(argc, argv, "f")) != -1) { 6681 switch (c) { 6682 case 'f': 6683 flags = MS_FORCE; 6684 break; 6685 case '?': 6686 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6687 optopt); 6688 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6689 "<path>\n")); 6690 return (2); 6691 } 6692 } 6693 6694 argc -= optind; 6695 argv += optind; 6696 6697 /* check arguments */ 6698 if (argc != 1) { 6699 if (argc == 0) 6700 (void) fprintf(stderr, gettext("missing path " 6701 "argument\n")); 6702 else 6703 (void) fprintf(stderr, gettext("too many arguments\n")); 6704 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6705 return (2); 6706 } 6707 6708 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6709} 6710 6711static int 6712find_command_idx(char *command, int *idx) 6713{ 6714 int i; 6715 6716 for (i = 0; i < NCOMMAND; i++) { 6717 if (command_table[i].name == NULL) 6718 continue; 6719 6720 if (strcmp(command, command_table[i].name) == 0) { 6721 *idx = i; 6722 return (0); 6723 } 6724 } 6725 return (1); 6726} 6727 6728static int 6729zfs_do_diff(int argc, char **argv) 6730{ 6731 zfs_handle_t *zhp; 6732 int flags = 0; 6733 char *tosnap = NULL; 6734 char *fromsnap = NULL; 6735 char *atp, *copy; 6736 int err = 0; 6737 int c; 6738 6739 while ((c = getopt(argc, argv, "FHt")) != -1) { 6740 switch (c) { 6741 case 'F': 6742 flags |= ZFS_DIFF_CLASSIFY; 6743 break; 6744 case 'H': 6745 flags |= ZFS_DIFF_PARSEABLE; 6746 break; 6747 case 't': 6748 flags |= ZFS_DIFF_TIMESTAMP; 6749 break; 6750 default: 6751 (void) fprintf(stderr, 6752 gettext("invalid option '%c'\n"), optopt); 6753 usage(B_FALSE); 6754 } 6755 } 6756 6757 argc -= optind; 6758 argv += optind; 6759 6760 if (argc < 1) { 6761 (void) fprintf(stderr, 6762 gettext("must provide at least one snapshot name\n")); 6763 usage(B_FALSE); 6764 } 6765 6766 if (argc > 2) { 6767 (void) fprintf(stderr, gettext("too many arguments\n")); 6768 usage(B_FALSE); 6769 } 6770 6771 fromsnap = argv[0]; 6772 tosnap = (argc == 2) ? argv[1] : NULL; 6773 6774 copy = NULL; 6775 if (*fromsnap != '@') 6776 copy = strdup(fromsnap); 6777 else if (tosnap) 6778 copy = strdup(tosnap); 6779 if (copy == NULL) 6780 usage(B_FALSE); 6781 6782 if (atp = strchr(copy, '@')) 6783 *atp = '\0'; 6784 6785 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6786 return (1); 6787 6788 free(copy); 6789 6790 /* 6791 * Ignore SIGPIPE so that the library can give us 6792 * information on any failure 6793 */ 6794 (void) sigignore(SIGPIPE); 6795 6796 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6797 6798 zfs_close(zhp); 6799 6800 return (err != 0); 6801} 6802 6803/* 6804 * zfs bookmark <fs@snap> <fs#bmark> 6805 * 6806 * Creates a bookmark with the given name from the given snapshot. 6807 */ 6808static int 6809zfs_do_bookmark(int argc, char **argv) 6810{ 6811 char snapname[ZFS_MAXNAMELEN]; 6812 zfs_handle_t *zhp; 6813 nvlist_t *nvl; 6814 int ret = 0; 6815 int c; 6816 6817 /* check options */ 6818 while ((c = getopt(argc, argv, "")) != -1) { 6819 switch (c) { 6820 case '?': 6821 (void) fprintf(stderr, 6822 gettext("invalid option '%c'\n"), optopt); 6823 goto usage; 6824 } 6825 } 6826 6827 argc -= optind; 6828 argv += optind; 6829 6830 /* check number of arguments */ 6831 if (argc < 1) { 6832 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6833 goto usage; 6834 } 6835 if (argc < 2) { 6836 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6837 goto usage; 6838 } 6839 6840 if (strchr(argv[1], '#') == NULL) { 6841 (void) fprintf(stderr, 6842 gettext("invalid bookmark name '%s' -- " 6843 "must contain a '#'\n"), argv[1]); 6844 goto usage; 6845 } 6846 6847 if (argv[0][0] == '@') { 6848 /* 6849 * Snapshot name begins with @. 6850 * Default to same fs as bookmark. 6851 */ 6852 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6853 *strchr(snapname, '#') = '\0'; 6854 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6855 } else { 6856 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6857 } 6858 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6859 if (zhp == NULL) 6860 goto usage; 6861 zfs_close(zhp); 6862 6863 6864 nvl = fnvlist_alloc(); 6865 fnvlist_add_string(nvl, argv[1], snapname); 6866 ret = lzc_bookmark(nvl, NULL); 6867 fnvlist_free(nvl); 6868 6869 if (ret != 0) { 6870 const char *err_msg; 6871 char errbuf[1024]; 6872 6873 (void) snprintf(errbuf, sizeof (errbuf), 6874 dgettext(TEXT_DOMAIN, 6875 "cannot create bookmark '%s'"), argv[1]); 6876 6877 switch (ret) { 6878 case EXDEV: 6879 err_msg = "bookmark is in a different pool"; 6880 break; 6881 case EEXIST: 6882 err_msg = "bookmark exists"; 6883 break; 6884 case EINVAL: 6885 err_msg = "invalid argument"; 6886 break; 6887 case ENOTSUP: 6888 err_msg = "bookmark feature not enabled"; 6889 break; 6890 case ENOSPC: 6891 err_msg = "out of space"; 6892 break; 6893 default: 6894 err_msg = "unknown error"; 6895 break; 6896 } 6897 (void) fprintf(stderr, "%s: %s\n", errbuf, 6898 dgettext(TEXT_DOMAIN, err_msg)); 6899 } 6900 6901 return (ret != 0); 6902 6903usage: 6904 usage(B_FALSE); 6905 return (-1); 6906} 6907 6908int 6909main(int argc, char **argv) 6910{ 6911 int ret = 0; 6912 int i; 6913 char *progname; 6914 char *cmdname; 6915 6916 (void) setlocale(LC_ALL, ""); 6917 (void) textdomain(TEXT_DOMAIN); 6918 6919 opterr = 0; 6920 6921 if ((g_zfs = libzfs_init()) == NULL) { 6922 (void) fprintf(stderr, gettext("internal error: failed to " 6923 "initialize ZFS library\n")); 6924 return (1); 6925 } 6926 6927 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6928 6929 libzfs_print_on_error(g_zfs, B_TRUE); 6930 6931 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6932 (void) fprintf(stderr, gettext("internal error: unable to " 6933 "open %s\n"), MNTTAB); 6934 return (1); 6935 } 6936 6937 /* 6938 * This command also doubles as the /etc/fs mount and unmount program. 6939 * Determine if we should take this behavior based on argv[0]. 6940 */ 6941 progname = basename(argv[0]); 6942 if (strcmp(progname, "mount") == 0) { 6943 ret = manual_mount(argc, argv); 6944 } else if (strcmp(progname, "umount") == 0) { 6945 ret = manual_unmount(argc, argv); 6946 } else { 6947 /* 6948 * Make sure the user has specified some command. 6949 */ 6950 if (argc < 2) { 6951 (void) fprintf(stderr, gettext("missing command\n")); 6952 usage(B_FALSE); 6953 } 6954 6955 cmdname = argv[1]; 6956 6957 /* 6958 * The 'umount' command is an alias for 'unmount' 6959 */ 6960 if (strcmp(cmdname, "umount") == 0) 6961 cmdname = "unmount"; 6962 6963 /* 6964 * The 'recv' command is an alias for 'receive' 6965 */ 6966 if (strcmp(cmdname, "recv") == 0) 6967 cmdname = "receive"; 6968 6969 /* 6970 * The 'snap' command is an alias for 'snapshot' 6971 */ 6972 if (strcmp(cmdname, "snap") == 0) 6973 cmdname = "snapshot"; 6974 6975 /* 6976 * Special case '-?' 6977 */ 6978 if (strcmp(cmdname, "-?") == 0) 6979 usage(B_TRUE); 6980 6981 /* 6982 * Run the appropriate command. 6983 */ 6984 libzfs_mnttab_cache(g_zfs, B_TRUE); 6985 if (find_command_idx(cmdname, &i) == 0) { 6986 current_command = &command_table[i]; 6987 ret = command_table[i].func(argc - 1, argv + 1); 6988 } else if (strchr(cmdname, '=') != NULL) { 6989 verify(find_command_idx("set", &i) == 0); 6990 current_command = &command_table[i]; 6991 ret = command_table[i].func(argc, argv); 6992 } else { 6993 (void) fprintf(stderr, gettext("unrecognized " 6994 "command '%s'\n"), cmdname); 6995 usage(B_FALSE); 6996 } 6997 libzfs_mnttab_cache(g_zfs, B_FALSE); 6998 } 6999 7000 (void) fclose(mnttab_file); 7001 7002 if (ret == 0 && log_history) 7003 (void) zpool_log_history(g_zfs, history_str); 7004 7005 libzfs_fini(g_zfs); 7006 7007 /* 7008 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7009 * for the purposes of running ::findleaks. 7010 */ 7011 if (getenv("ZFS_ABORT") != NULL) { 7012 (void) printf("dumping core by request\n"); 7013 abort(); 7014 } 7015 7016 return (ret); 7017} 7018