zfs_main.c revision 260183
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) 2013 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#endif 72 73#include "zfs_iter.h" 74#include "zfs_util.h" 75#include "zfs_comutil.h" 76 77libzfs_handle_t *g_zfs; 78 79static FILE *mnttab_file; 80static char history_str[HIS_MAX_RECORD_LEN]; 81static boolean_t log_history = B_TRUE; 82 83static int zfs_do_clone(int argc, char **argv); 84static int zfs_do_create(int argc, char **argv); 85static int zfs_do_destroy(int argc, char **argv); 86static int zfs_do_get(int argc, char **argv); 87static int zfs_do_inherit(int argc, char **argv); 88static int zfs_do_list(int argc, char **argv); 89static int zfs_do_mount(int argc, char **argv); 90static int zfs_do_rename(int argc, char **argv); 91static int zfs_do_rollback(int argc, char **argv); 92static int zfs_do_set(int argc, char **argv); 93static int zfs_do_upgrade(int argc, char **argv); 94static int zfs_do_snapshot(int argc, char **argv); 95static int zfs_do_unmount(int argc, char **argv); 96static int zfs_do_share(int argc, char **argv); 97static int zfs_do_unshare(int argc, char **argv); 98static int zfs_do_send(int argc, char **argv); 99static int zfs_do_receive(int argc, char **argv); 100static int zfs_do_promote(int argc, char **argv); 101static int zfs_do_userspace(int argc, char **argv); 102static int zfs_do_allow(int argc, char **argv); 103static int zfs_do_unallow(int argc, char **argv); 104static int zfs_do_hold(int argc, char **argv); 105static int zfs_do_holds(int argc, char **argv); 106static int zfs_do_release(int argc, char **argv); 107static int zfs_do_diff(int argc, char **argv); 108static int zfs_do_jail(int argc, char **argv); 109static int zfs_do_unjail(int argc, char **argv); 110static int zfs_do_bookmark(int argc, char **argv); 111 112/* 113 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 114 */ 115 116#ifdef DEBUG 117const char * 118_umem_debug_init(void) 119{ 120 return ("default,verbose"); /* $UMEM_DEBUG setting */ 121} 122 123const char * 124_umem_logging_init(void) 125{ 126 return ("fail,contents"); /* $UMEM_LOGGING setting */ 127} 128#endif 129 130typedef enum { 131 HELP_CLONE, 132 HELP_CREATE, 133 HELP_DESTROY, 134 HELP_GET, 135 HELP_INHERIT, 136 HELP_UPGRADE, 137 HELP_JAIL, 138 HELP_UNJAIL, 139 HELP_LIST, 140 HELP_MOUNT, 141 HELP_PROMOTE, 142 HELP_RECEIVE, 143 HELP_RENAME, 144 HELP_ROLLBACK, 145 HELP_SEND, 146 HELP_SET, 147 HELP_SHARE, 148 HELP_SNAPSHOT, 149 HELP_UNMOUNT, 150 HELP_UNSHARE, 151 HELP_ALLOW, 152 HELP_UNALLOW, 153 HELP_USERSPACE, 154 HELP_GROUPSPACE, 155 HELP_HOLD, 156 HELP_HOLDS, 157 HELP_RELEASE, 158 HELP_DIFF, 159 HELP_BOOKMARK, 160} zfs_help_t; 161 162typedef struct zfs_command { 163 const char *name; 164 int (*func)(int argc, char **argv); 165 zfs_help_t usage; 166} zfs_command_t; 167 168/* 169 * Master command table. Each ZFS command has a name, associated function, and 170 * usage message. The usage messages need to be internationalized, so we have 171 * to have a function to return the usage message based on a command index. 172 * 173 * These commands are organized according to how they are displayed in the usage 174 * message. An empty command (one with a NULL name) indicates an empty line in 175 * the generic usage message. 176 */ 177static zfs_command_t command_table[] = { 178 { "create", zfs_do_create, HELP_CREATE }, 179 { "destroy", zfs_do_destroy, HELP_DESTROY }, 180 { NULL }, 181 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 182 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 183 { "clone", zfs_do_clone, HELP_CLONE }, 184 { "promote", zfs_do_promote, HELP_PROMOTE }, 185 { "rename", zfs_do_rename, HELP_RENAME }, 186 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 187 { NULL }, 188 { "list", zfs_do_list, HELP_LIST }, 189 { NULL }, 190 { "set", zfs_do_set, HELP_SET }, 191 { "get", zfs_do_get, HELP_GET }, 192 { "inherit", zfs_do_inherit, HELP_INHERIT }, 193 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 194 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 195 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 196 { NULL }, 197 { "mount", zfs_do_mount, HELP_MOUNT }, 198 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 199 { "share", zfs_do_share, HELP_SHARE }, 200 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 201 { NULL }, 202 { "send", zfs_do_send, HELP_SEND }, 203 { "receive", zfs_do_receive, HELP_RECEIVE }, 204 { NULL }, 205 { "allow", zfs_do_allow, HELP_ALLOW }, 206 { NULL }, 207 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 208 { NULL }, 209 { "hold", zfs_do_hold, HELP_HOLD }, 210 { "holds", zfs_do_holds, HELP_HOLDS }, 211 { "release", zfs_do_release, HELP_RELEASE }, 212 { "diff", zfs_do_diff, HELP_DIFF }, 213 { NULL }, 214 { "jail", zfs_do_jail, HELP_JAIL }, 215 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 216}; 217 218#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 219 220zfs_command_t *current_command; 221 222static const char * 223get_usage(zfs_help_t idx) 224{ 225 switch (idx) { 226 case HELP_CLONE: 227 return (gettext("\tclone [-p] [-o property=value] ... " 228 "<snapshot> <filesystem|volume>\n")); 229 case HELP_CREATE: 230 return (gettext("\tcreate [-pu] [-o property=value] ... " 231 "<filesystem>\n" 232 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 233 "-V <size> <volume>\n")); 234 case HELP_DESTROY: 235 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 236 "\tdestroy [-dnpRrv] " 237 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 238 "\tdestroy <filesystem|volume>#<bookmark>\n")); 239 case HELP_GET: 240 return (gettext("\tget [-rHp] [-d max] " 241 "[-o \"all\" | field[,...]]\n" 242 "\t [-t type[,...]] [-s source[,...]]\n" 243 "\t <\"all\" | property[,...]> " 244 "[filesystem|volume|snapshot] ...\n")); 245 case HELP_INHERIT: 246 return (gettext("\tinherit [-rS] <property> " 247 "<filesystem|volume|snapshot> ...\n")); 248 case HELP_UPGRADE: 249 return (gettext("\tupgrade [-v]\n" 250 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 251 case HELP_JAIL: 252 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 253 case HELP_UNJAIL: 254 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 255 case HELP_LIST: 256 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 257 "[-s property]...\n\t [-S property]... [-t type[,...]] " 258 "[filesystem|volume|snapshot] ...\n")); 259 case HELP_MOUNT: 260 return (gettext("\tmount\n" 261 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 262 case HELP_PROMOTE: 263 return (gettext("\tpromote <clone-filesystem>\n")); 264 case HELP_RECEIVE: 265 return (gettext("\treceive|recv [-vnFu] <filesystem|volume|" 266 "snapshot>\n" 267 "\treceive|recv [-vnFu] [-d | -e] <filesystem>\n")); 268 case HELP_RENAME: 269 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 270 "<filesystem|volume|snapshot>\n" 271 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 272 "\trename -r <snapshot> <snapshot>\n" 273 "\trename -u [-p] <filesystem> <filesystem>")); 274 case HELP_ROLLBACK: 275 return (gettext("\trollback [-rRf] <snapshot>\n")); 276 case HELP_SEND: 277 return (gettext("\tsend [-DnPpRv] [-[iI] snapshot] " 278 "<snapshot>\n" 279 "\tsend [-i snapshot|bookmark] " 280 "<filesystem|volume|snapshot>\n")); 281 case HELP_SET: 282 return (gettext("\tset <property=value> " 283 "<filesystem|volume|snapshot> ...\n")); 284 case HELP_SHARE: 285 return (gettext("\tshare <-a | filesystem>\n")); 286 case HELP_SNAPSHOT: 287 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... " 288 "<filesystem|volume>@<snap> ...\n")); 289 case HELP_UNMOUNT: 290 return (gettext("\tunmount|umount [-f] " 291 "<-a | filesystem|mountpoint>\n")); 292 case HELP_UNSHARE: 293 return (gettext("\tunshare " 294 "<-a | filesystem|mountpoint>\n")); 295 case HELP_ALLOW: 296 return (gettext("\tallow <filesystem|volume>\n" 297 "\tallow [-ldug] " 298 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 299 "\t <filesystem|volume>\n" 300 "\tallow [-ld] -e <perm|@setname>[,...] " 301 "<filesystem|volume>\n" 302 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 303 "\tallow -s @setname <perm|@setname>[,...] " 304 "<filesystem|volume>\n")); 305 case HELP_UNALLOW: 306 return (gettext("\tunallow [-rldug] " 307 "<\"everyone\"|user|group>[,...]\n" 308 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 309 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 310 "<filesystem|volume>\n" 311 "\tunallow [-r] -c [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n" 313 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 314 "<filesystem|volume>\n")); 315 case HELP_USERSPACE: 316 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 317 "[-s field] ...\n" 318 "\t [-S field] ... [-t type[,...]] " 319 "<filesystem|snapshot>\n")); 320 case HELP_GROUPSPACE: 321 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 322 "[-s field] ...\n" 323 "\t [-S field] ... [-t type[,...]] " 324 "<filesystem|snapshot>\n")); 325 case HELP_HOLD: 326 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 327 case HELP_HOLDS: 328 return (gettext("\tholds [-r] <snapshot> ...\n")); 329 case HELP_RELEASE: 330 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 331 case HELP_DIFF: 332 return (gettext("\tdiff [-FHt] <snapshot> " 333 "[snapshot|filesystem]\n")); 334 case HELP_BOOKMARK: 335 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 336 } 337 338 abort(); 339 /* NOTREACHED */ 340} 341 342void 343nomem(void) 344{ 345 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 346 exit(1); 347} 348 349/* 350 * Utility function to guarantee malloc() success. 351 */ 352 353void * 354safe_malloc(size_t size) 355{ 356 void *data; 357 358 if ((data = calloc(1, size)) == NULL) 359 nomem(); 360 361 return (data); 362} 363 364static char * 365safe_strdup(char *str) 366{ 367 char *dupstr = strdup(str); 368 369 if (dupstr == NULL) 370 nomem(); 371 372 return (dupstr); 373} 374 375/* 376 * Callback routine that will print out information for each of 377 * the properties. 378 */ 379static int 380usage_prop_cb(int prop, void *cb) 381{ 382 FILE *fp = cb; 383 384 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 385 386 if (zfs_prop_readonly(prop)) 387 (void) fprintf(fp, " NO "); 388 else 389 (void) fprintf(fp, "YES "); 390 391 if (zfs_prop_inheritable(prop)) 392 (void) fprintf(fp, " YES "); 393 else 394 (void) fprintf(fp, " NO "); 395 396 if (zfs_prop_values(prop) == NULL) 397 (void) fprintf(fp, "-\n"); 398 else 399 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 400 401 return (ZPROP_CONT); 402} 403 404/* 405 * Display usage message. If we're inside a command, display only the usage for 406 * that command. Otherwise, iterate over the entire command table and display 407 * a complete usage message. 408 */ 409static void 410usage(boolean_t requested) 411{ 412 int i; 413 boolean_t show_properties = B_FALSE; 414 FILE *fp = requested ? stdout : stderr; 415 416 if (current_command == NULL) { 417 418 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 419 (void) fprintf(fp, 420 gettext("where 'command' is one of the following:\n\n")); 421 422 for (i = 0; i < NCOMMAND; i++) { 423 if (command_table[i].name == NULL) 424 (void) fprintf(fp, "\n"); 425 else 426 (void) fprintf(fp, "%s", 427 get_usage(command_table[i].usage)); 428 } 429 430 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 431 "pool/[dataset/]*dataset[@name]\n")); 432 } else { 433 (void) fprintf(fp, gettext("usage:\n")); 434 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 435 } 436 437 if (current_command != NULL && 438 (strcmp(current_command->name, "set") == 0 || 439 strcmp(current_command->name, "get") == 0 || 440 strcmp(current_command->name, "inherit") == 0 || 441 strcmp(current_command->name, "list") == 0)) 442 show_properties = B_TRUE; 443 444 if (show_properties) { 445 (void) fprintf(fp, 446 gettext("\nThe following properties are supported:\n")); 447 448 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 449 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 450 451 /* Iterate over all properties */ 452 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 453 ZFS_TYPE_DATASET); 454 455 (void) fprintf(fp, "\t%-15s ", "userused@..."); 456 (void) fprintf(fp, " NO NO <size>\n"); 457 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 458 (void) fprintf(fp, " NO NO <size>\n"); 459 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 460 (void) fprintf(fp, "YES NO <size> | none\n"); 461 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 462 (void) fprintf(fp, "YES NO <size> | none\n"); 463 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 464 (void) fprintf(fp, " NO NO <size>\n"); 465 466 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 467 "with standard units such as K, M, G, etc.\n")); 468 (void) fprintf(fp, gettext("\nUser-defined properties can " 469 "be specified by using a name containing a colon (:).\n")); 470 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 471 "properties must be appended with\n" 472 "a user or group specifier of one of these forms:\n" 473 " POSIX name (eg: \"matt\")\n" 474 " POSIX id (eg: \"126829\")\n" 475 " SMB name@domain (eg: \"matt@sun\")\n" 476 " SMB SID (eg: \"S-1-234-567-89\")\n")); 477 } else { 478 (void) fprintf(fp, 479 gettext("\nFor the property list, run: %s\n"), 480 "zfs set|get"); 481 (void) fprintf(fp, 482 gettext("\nFor the delegated permission list, run: %s\n"), 483 "zfs allow|unallow"); 484 } 485 486 /* 487 * See comments at end of main(). 488 */ 489 if (getenv("ZFS_ABORT") != NULL) { 490 (void) printf("dumping core by request\n"); 491 abort(); 492 } 493 494 exit(requested ? 0 : 2); 495} 496 497static int 498parseprop(nvlist_t *props) 499{ 500 char *propname = optarg; 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"), optarg); 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 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 596 * 597 * Given an existing dataset, create a writable copy whose initial contents 598 * are the same as the source. The newly created dataset maintains a 599 * dependency on the original; the original cannot be destroyed so long as 600 * the clone exists. 601 * 602 * The '-p' flag creates all the non-existing ancestors of the target first. 603 */ 604static int 605zfs_do_clone(int argc, char **argv) 606{ 607 zfs_handle_t *zhp = NULL; 608 boolean_t parents = B_FALSE; 609 nvlist_t *props; 610 int ret = 0; 611 int c; 612 613 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 614 nomem(); 615 616 /* check options */ 617 while ((c = getopt(argc, argv, "o:p")) != -1) { 618 switch (c) { 619 case 'o': 620 if (parseprop(props)) 621 return (1); 622 break; 623 case 'p': 624 parents = B_TRUE; 625 break; 626 case '?': 627 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 628 optopt); 629 goto usage; 630 } 631 } 632 633 argc -= optind; 634 argv += optind; 635 636 /* check number of arguments */ 637 if (argc < 1) { 638 (void) fprintf(stderr, gettext("missing source dataset " 639 "argument\n")); 640 goto usage; 641 } 642 if (argc < 2) { 643 (void) fprintf(stderr, gettext("missing target dataset " 644 "argument\n")); 645 goto usage; 646 } 647 if (argc > 2) { 648 (void) fprintf(stderr, gettext("too many arguments\n")); 649 goto usage; 650 } 651 652 /* open the source dataset */ 653 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 654 return (1); 655 656 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 657 ZFS_TYPE_VOLUME)) { 658 /* 659 * Now create the ancestors of the target dataset. If the 660 * target already exists and '-p' option was used we should not 661 * complain. 662 */ 663 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 664 ZFS_TYPE_VOLUME)) 665 return (0); 666 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 667 return (1); 668 } 669 670 /* pass to libzfs */ 671 ret = zfs_clone(zhp, argv[1], props); 672 673 /* create the mountpoint if necessary */ 674 if (ret == 0) { 675 zfs_handle_t *clone; 676 677 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 678 if (clone != NULL) { 679 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 680 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 681 ret = zfs_share(clone); 682 zfs_close(clone); 683 } 684 } 685 686 zfs_close(zhp); 687 nvlist_free(props); 688 689 return (!!ret); 690 691usage: 692 if (zhp) 693 zfs_close(zhp); 694 nvlist_free(props); 695 usage(B_FALSE); 696 return (-1); 697} 698 699/* 700 * zfs create [-pu] [-o prop=value] ... fs 701 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 702 * 703 * Create a new dataset. This command can be used to create filesystems 704 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 705 * For volumes, the user must specify a size to be used. 706 * 707 * The '-s' flag applies only to volumes, and indicates that we should not try 708 * to set the reservation for this volume. By default we set a reservation 709 * equal to the size for any volume. For pools with SPA_VERSION >= 710 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 711 * 712 * The '-p' flag creates all the non-existing ancestors of the target first. 713 * 714 * The '-u' flag prevents mounting of newly created file system. 715 */ 716static int 717zfs_do_create(int argc, char **argv) 718{ 719 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 720 zfs_handle_t *zhp = NULL; 721 uint64_t volsize; 722 int c; 723 boolean_t noreserve = B_FALSE; 724 boolean_t bflag = B_FALSE; 725 boolean_t parents = B_FALSE; 726 boolean_t nomount = B_FALSE; 727 int ret = 1; 728 nvlist_t *props; 729 uint64_t intval; 730 int canmount = ZFS_CANMOUNT_OFF; 731 732 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 733 nomem(); 734 735 /* check options */ 736 while ((c = getopt(argc, argv, ":V:b:so:pu")) != -1) { 737 switch (c) { 738 case 'V': 739 type = ZFS_TYPE_VOLUME; 740 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 741 (void) fprintf(stderr, gettext("bad volume " 742 "size '%s': %s\n"), optarg, 743 libzfs_error_description(g_zfs)); 744 goto error; 745 } 746 747 if (nvlist_add_uint64(props, 748 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 749 nomem(); 750 volsize = intval; 751 break; 752 case 'p': 753 parents = B_TRUE; 754 break; 755 case 'b': 756 bflag = B_TRUE; 757 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 758 (void) fprintf(stderr, gettext("bad volume " 759 "block size '%s': %s\n"), optarg, 760 libzfs_error_description(g_zfs)); 761 goto error; 762 } 763 764 if (nvlist_add_uint64(props, 765 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 766 intval) != 0) 767 nomem(); 768 break; 769 case 'o': 770 if (parseprop(props)) 771 goto error; 772 break; 773 case 's': 774 noreserve = B_TRUE; 775 break; 776 case 'u': 777 nomount = B_TRUE; 778 break; 779 case ':': 780 (void) fprintf(stderr, gettext("missing size " 781 "argument\n")); 782 goto badusage; 783 case '?': 784 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 785 optopt); 786 goto badusage; 787 } 788 } 789 790 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 791 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 792 "used when creating a volume\n")); 793 goto badusage; 794 } 795 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 796 (void) fprintf(stderr, gettext("'-u' can only be " 797 "used when creating a file system\n")); 798 goto badusage; 799 } 800 801 argc -= optind; 802 argv += optind; 803 804 /* check number of arguments */ 805 if (argc == 0) { 806 (void) fprintf(stderr, gettext("missing %s argument\n"), 807 zfs_type_to_name(type)); 808 goto badusage; 809 } 810 if (argc > 1) { 811 (void) fprintf(stderr, gettext("too many arguments\n")); 812 goto badusage; 813 } 814 815 if (type == ZFS_TYPE_VOLUME && !noreserve) { 816 zpool_handle_t *zpool_handle; 817 uint64_t spa_version; 818 char *p; 819 zfs_prop_t resv_prop; 820 char *strval; 821 822 if (p = strchr(argv[0], '/')) 823 *p = '\0'; 824 zpool_handle = zpool_open(g_zfs, argv[0]); 825 if (p != NULL) 826 *p = '/'; 827 if (zpool_handle == NULL) 828 goto error; 829 spa_version = zpool_get_prop_int(zpool_handle, 830 ZPOOL_PROP_VERSION, NULL); 831 zpool_close(zpool_handle); 832 if (spa_version >= SPA_VERSION_REFRESERVATION) 833 resv_prop = ZFS_PROP_REFRESERVATION; 834 else 835 resv_prop = ZFS_PROP_RESERVATION; 836 volsize = zvol_volsize_to_reservation(volsize, props); 837 838 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 839 &strval) != 0) { 840 if (nvlist_add_uint64(props, 841 zfs_prop_to_name(resv_prop), volsize) != 0) { 842 nvlist_free(props); 843 nomem(); 844 } 845 } 846 } 847 848 if (parents && zfs_name_valid(argv[0], type)) { 849 /* 850 * Now create the ancestors of target dataset. If the target 851 * already exists and '-p' option was used we should not 852 * complain. 853 */ 854 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 855 ret = 0; 856 goto error; 857 } 858 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 859 goto error; 860 } 861 862 /* pass to libzfs */ 863 if (zfs_create(g_zfs, argv[0], type, props) != 0) 864 goto error; 865 866 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 867 goto error; 868 869 ret = 0; 870 /* 871 * if the user doesn't want the dataset automatically mounted, 872 * then skip the mount/share step 873 */ 874 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 875 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 876 877 /* 878 * Mount and/or share the new filesystem as appropriate. We provide a 879 * verbose error message to let the user know that their filesystem was 880 * in fact created, even if we failed to mount or share it. 881 */ 882 if (!nomount && canmount == ZFS_CANMOUNT_ON) { 883 if (zfs_mount(zhp, NULL, 0) != 0) { 884 (void) fprintf(stderr, gettext("filesystem " 885 "successfully created, but not mounted\n")); 886 ret = 1; 887 } else if (zfs_share(zhp) != 0) { 888 (void) fprintf(stderr, gettext("filesystem " 889 "successfully created, but not shared\n")); 890 ret = 1; 891 } 892 } 893 894error: 895 if (zhp) 896 zfs_close(zhp); 897 nvlist_free(props); 898 return (ret); 899badusage: 900 nvlist_free(props); 901 usage(B_FALSE); 902 return (2); 903} 904 905/* 906 * zfs destroy [-rRf] <fs, vol> 907 * zfs destroy [-rRd] <snap> 908 * 909 * -r Recursively destroy all children 910 * -R Recursively destroy all dependents, including clones 911 * -f Force unmounting of any dependents 912 * -d If we can't destroy now, mark for deferred destruction 913 * 914 * Destroys the given dataset. By default, it will unmount any filesystems, 915 * and refuse to destroy a dataset that has any dependents. A dependent can 916 * either be a child, or a clone of a child. 917 */ 918typedef struct destroy_cbdata { 919 boolean_t cb_first; 920 boolean_t cb_force; 921 boolean_t cb_recurse; 922 boolean_t cb_error; 923 boolean_t cb_doclones; 924 zfs_handle_t *cb_target; 925 boolean_t cb_defer_destroy; 926 boolean_t cb_verbose; 927 boolean_t cb_parsable; 928 boolean_t cb_dryrun; 929 nvlist_t *cb_nvl; 930 nvlist_t *cb_batchedsnaps; 931 932 /* first snap in contiguous run */ 933 char *cb_firstsnap; 934 /* previous snap in contiguous run */ 935 char *cb_prevsnap; 936 int64_t cb_snapused; 937 char *cb_snapspec; 938 char *cb_bookmark; 939} destroy_cbdata_t; 940 941/* 942 * Check for any dependents based on the '-r' or '-R' flags. 943 */ 944static int 945destroy_check_dependent(zfs_handle_t *zhp, void *data) 946{ 947 destroy_cbdata_t *cbp = data; 948 const char *tname = zfs_get_name(cbp->cb_target); 949 const char *name = zfs_get_name(zhp); 950 951 if (strncmp(tname, name, strlen(tname)) == 0 && 952 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 953 /* 954 * This is a direct descendant, not a clone somewhere else in 955 * the hierarchy. 956 */ 957 if (cbp->cb_recurse) 958 goto out; 959 960 if (cbp->cb_first) { 961 (void) fprintf(stderr, gettext("cannot destroy '%s': " 962 "%s has children\n"), 963 zfs_get_name(cbp->cb_target), 964 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 965 (void) fprintf(stderr, gettext("use '-r' to destroy " 966 "the following datasets:\n")); 967 cbp->cb_first = B_FALSE; 968 cbp->cb_error = B_TRUE; 969 } 970 971 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 972 } else { 973 /* 974 * This is a clone. We only want to report this if the '-r' 975 * wasn't specified, or the target is a snapshot. 976 */ 977 if (!cbp->cb_recurse && 978 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 979 goto out; 980 981 if (cbp->cb_first) { 982 (void) fprintf(stderr, gettext("cannot destroy '%s': " 983 "%s has dependent clones\n"), 984 zfs_get_name(cbp->cb_target), 985 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 986 (void) fprintf(stderr, gettext("use '-R' to destroy " 987 "the following datasets:\n")); 988 cbp->cb_first = B_FALSE; 989 cbp->cb_error = B_TRUE; 990 cbp->cb_dryrun = B_TRUE; 991 } 992 993 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 994 } 995 996out: 997 zfs_close(zhp); 998 return (0); 999} 1000 1001static int 1002destroy_callback(zfs_handle_t *zhp, void *data) 1003{ 1004 destroy_cbdata_t *cb = data; 1005 const char *name = zfs_get_name(zhp); 1006 1007 if (cb->cb_verbose) { 1008 if (cb->cb_parsable) { 1009 (void) printf("destroy\t%s\n", name); 1010 } else if (cb->cb_dryrun) { 1011 (void) printf(gettext("would destroy %s\n"), 1012 name); 1013 } else { 1014 (void) printf(gettext("will destroy %s\n"), 1015 name); 1016 } 1017 } 1018 1019 /* 1020 * Ignore pools (which we've already flagged as an error before getting 1021 * here). 1022 */ 1023 if (strchr(zfs_get_name(zhp), '/') == NULL && 1024 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1025 zfs_close(zhp); 1026 return (0); 1027 } 1028 if (cb->cb_dryrun) { 1029 zfs_close(zhp); 1030 return (0); 1031 } 1032 1033 /* 1034 * We batch up all contiguous snapshots (even of different 1035 * filesystems) and destroy them with one ioctl. We can't 1036 * simply do all snap deletions and then all fs deletions, 1037 * because we must delete a clone before its origin. 1038 */ 1039 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1040 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1041 } else { 1042 int error = zfs_destroy_snaps_nvl(g_zfs, 1043 cb->cb_batchedsnaps, B_FALSE); 1044 fnvlist_free(cb->cb_batchedsnaps); 1045 cb->cb_batchedsnaps = fnvlist_alloc(); 1046 1047 if (error != 0 || 1048 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1049 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1050 zfs_close(zhp); 1051 return (-1); 1052 } 1053 } 1054 1055 zfs_close(zhp); 1056 return (0); 1057} 1058 1059static int 1060destroy_print_cb(zfs_handle_t *zhp, void *arg) 1061{ 1062 destroy_cbdata_t *cb = arg; 1063 const char *name = zfs_get_name(zhp); 1064 int err = 0; 1065 1066 if (nvlist_exists(cb->cb_nvl, name)) { 1067 if (cb->cb_firstsnap == NULL) 1068 cb->cb_firstsnap = strdup(name); 1069 if (cb->cb_prevsnap != NULL) 1070 free(cb->cb_prevsnap); 1071 /* this snap continues the current range */ 1072 cb->cb_prevsnap = strdup(name); 1073 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1074 nomem(); 1075 if (cb->cb_verbose) { 1076 if (cb->cb_parsable) { 1077 (void) printf("destroy\t%s\n", name); 1078 } else if (cb->cb_dryrun) { 1079 (void) printf(gettext("would destroy %s\n"), 1080 name); 1081 } else { 1082 (void) printf(gettext("will destroy %s\n"), 1083 name); 1084 } 1085 } 1086 } else if (cb->cb_firstsnap != NULL) { 1087 /* end of this range */ 1088 uint64_t used = 0; 1089 err = lzc_snaprange_space(cb->cb_firstsnap, 1090 cb->cb_prevsnap, &used); 1091 cb->cb_snapused += used; 1092 free(cb->cb_firstsnap); 1093 cb->cb_firstsnap = NULL; 1094 free(cb->cb_prevsnap); 1095 cb->cb_prevsnap = NULL; 1096 } 1097 zfs_close(zhp); 1098 return (err); 1099} 1100 1101static int 1102destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1103{ 1104 int err = 0; 1105 assert(cb->cb_firstsnap == NULL); 1106 assert(cb->cb_prevsnap == NULL); 1107 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1108 if (cb->cb_firstsnap != NULL) { 1109 uint64_t used = 0; 1110 if (err == 0) { 1111 err = lzc_snaprange_space(cb->cb_firstsnap, 1112 cb->cb_prevsnap, &used); 1113 } 1114 cb->cb_snapused += used; 1115 free(cb->cb_firstsnap); 1116 cb->cb_firstsnap = NULL; 1117 free(cb->cb_prevsnap); 1118 cb->cb_prevsnap = NULL; 1119 } 1120 return (err); 1121} 1122 1123static int 1124snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1125{ 1126 destroy_cbdata_t *cb = arg; 1127 int err = 0; 1128 1129 /* Check for clones. */ 1130 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1131 cb->cb_target = zhp; 1132 cb->cb_first = B_TRUE; 1133 err = zfs_iter_dependents(zhp, B_TRUE, 1134 destroy_check_dependent, cb); 1135 } 1136 1137 if (err == 0) { 1138 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1139 nomem(); 1140 } 1141 zfs_close(zhp); 1142 return (err); 1143} 1144 1145static int 1146gather_snapshots(zfs_handle_t *zhp, void *arg) 1147{ 1148 destroy_cbdata_t *cb = arg; 1149 int err = 0; 1150 1151 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1152 if (err == ENOENT) 1153 err = 0; 1154 if (err != 0) 1155 goto out; 1156 1157 if (cb->cb_verbose) { 1158 err = destroy_print_snapshots(zhp, cb); 1159 if (err != 0) 1160 goto out; 1161 } 1162 1163 if (cb->cb_recurse) 1164 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1165 1166out: 1167 zfs_close(zhp); 1168 return (err); 1169} 1170 1171static int 1172destroy_clones(destroy_cbdata_t *cb) 1173{ 1174 nvpair_t *pair; 1175 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1176 pair != NULL; 1177 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1178 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1179 ZFS_TYPE_SNAPSHOT); 1180 if (zhp != NULL) { 1181 boolean_t defer = cb->cb_defer_destroy; 1182 int err = 0; 1183 1184 /* 1185 * We can't defer destroy non-snapshots, so set it to 1186 * false while destroying the clones. 1187 */ 1188 cb->cb_defer_destroy = B_FALSE; 1189 err = zfs_iter_dependents(zhp, B_FALSE, 1190 destroy_callback, cb); 1191 cb->cb_defer_destroy = defer; 1192 zfs_close(zhp); 1193 if (err != 0) 1194 return (err); 1195 } 1196 } 1197 return (0); 1198} 1199 1200static int 1201zfs_do_destroy(int argc, char **argv) 1202{ 1203 destroy_cbdata_t cb = { 0 }; 1204 int rv = 0; 1205 int err = 0; 1206 int c; 1207 zfs_handle_t *zhp = NULL; 1208 char *at, *pound; 1209 zfs_type_t type = ZFS_TYPE_DATASET; 1210 1211 /* check options */ 1212 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1213 switch (c) { 1214 case 'v': 1215 cb.cb_verbose = B_TRUE; 1216 break; 1217 case 'p': 1218 cb.cb_verbose = B_TRUE; 1219 cb.cb_parsable = B_TRUE; 1220 break; 1221 case 'n': 1222 cb.cb_dryrun = B_TRUE; 1223 break; 1224 case 'd': 1225 cb.cb_defer_destroy = B_TRUE; 1226 type = ZFS_TYPE_SNAPSHOT; 1227 break; 1228 case 'f': 1229 cb.cb_force = B_TRUE; 1230 break; 1231 case 'r': 1232 cb.cb_recurse = B_TRUE; 1233 break; 1234 case 'R': 1235 cb.cb_recurse = B_TRUE; 1236 cb.cb_doclones = B_TRUE; 1237 break; 1238 case '?': 1239 default: 1240 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1241 optopt); 1242 usage(B_FALSE); 1243 } 1244 } 1245 1246 argc -= optind; 1247 argv += optind; 1248 1249 /* check number of arguments */ 1250 if (argc == 0) { 1251 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1252 usage(B_FALSE); 1253 } 1254 if (argc > 1) { 1255 (void) fprintf(stderr, gettext("too many arguments\n")); 1256 usage(B_FALSE); 1257 } 1258 1259 at = strchr(argv[0], '@'); 1260 pound = strchr(argv[0], '#'); 1261 if (at != NULL) { 1262 1263 /* Build the list of snaps to destroy in cb_nvl. */ 1264 cb.cb_nvl = fnvlist_alloc(); 1265 1266 *at = '\0'; 1267 zhp = zfs_open(g_zfs, argv[0], 1268 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1269 if (zhp == NULL) 1270 return (1); 1271 1272 cb.cb_snapspec = at + 1; 1273 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1274 cb.cb_error) { 1275 rv = 1; 1276 goto out; 1277 } 1278 1279 if (nvlist_empty(cb.cb_nvl)) { 1280 (void) fprintf(stderr, gettext("could not find any " 1281 "snapshots to destroy; check snapshot names.\n")); 1282 rv = 1; 1283 goto out; 1284 } 1285 1286 if (cb.cb_verbose) { 1287 char buf[16]; 1288 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1289 if (cb.cb_parsable) { 1290 (void) printf("reclaim\t%llu\n", 1291 cb.cb_snapused); 1292 } else if (cb.cb_dryrun) { 1293 (void) printf(gettext("would reclaim %s\n"), 1294 buf); 1295 } else { 1296 (void) printf(gettext("will reclaim %s\n"), 1297 buf); 1298 } 1299 } 1300 1301 if (!cb.cb_dryrun) { 1302 if (cb.cb_doclones) { 1303 cb.cb_batchedsnaps = fnvlist_alloc(); 1304 err = destroy_clones(&cb); 1305 if (err == 0) { 1306 err = zfs_destroy_snaps_nvl(g_zfs, 1307 cb.cb_batchedsnaps, B_FALSE); 1308 } 1309 if (err != 0) { 1310 rv = 1; 1311 goto out; 1312 } 1313 } 1314 if (err == 0) { 1315 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1316 cb.cb_defer_destroy); 1317 } 1318 } 1319 1320 if (err != 0) 1321 rv = 1; 1322 } else if (pound != NULL) { 1323 int err; 1324 nvlist_t *nvl; 1325 1326 if (cb.cb_dryrun) { 1327 (void) fprintf(stderr, 1328 "dryrun is not supported with bookmark\n"); 1329 return (-1); 1330 } 1331 1332 if (cb.cb_defer_destroy) { 1333 (void) fprintf(stderr, 1334 "defer destroy is not supported with bookmark\n"); 1335 return (-1); 1336 } 1337 1338 if (cb.cb_recurse) { 1339 (void) fprintf(stderr, 1340 "recursive is not supported with bookmark\n"); 1341 return (-1); 1342 } 1343 1344 if (!zfs_bookmark_exists(argv[0])) { 1345 (void) fprintf(stderr, gettext("bookmark '%s' " 1346 "does not exist.\n"), argv[0]); 1347 return (1); 1348 } 1349 1350 nvl = fnvlist_alloc(); 1351 fnvlist_add_boolean(nvl, argv[0]); 1352 1353 err = lzc_destroy_bookmarks(nvl, NULL); 1354 if (err != 0) { 1355 (void) zfs_standard_error(g_zfs, err, 1356 "cannot destroy bookmark"); 1357 } 1358 1359 nvlist_free(cb.cb_nvl); 1360 1361 return (err); 1362 } else { 1363 /* Open the given dataset */ 1364 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1365 return (1); 1366 1367 cb.cb_target = zhp; 1368 1369 /* 1370 * Perform an explicit check for pools before going any further. 1371 */ 1372 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1373 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1374 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1375 "operation does not apply to pools\n"), 1376 zfs_get_name(zhp)); 1377 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1378 "%s' to destroy all datasets in the pool\n"), 1379 zfs_get_name(zhp)); 1380 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1381 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1382 rv = 1; 1383 goto out; 1384 } 1385 1386 /* 1387 * Check for any dependents and/or clones. 1388 */ 1389 cb.cb_first = B_TRUE; 1390 if (!cb.cb_doclones && 1391 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1392 &cb) != 0) { 1393 rv = 1; 1394 goto out; 1395 } 1396 1397 if (cb.cb_error) { 1398 rv = 1; 1399 goto out; 1400 } 1401 1402 cb.cb_batchedsnaps = fnvlist_alloc(); 1403 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1404 &cb) != 0) { 1405 rv = 1; 1406 goto out; 1407 } 1408 1409 /* 1410 * Do the real thing. The callback will close the 1411 * handle regardless of whether it succeeds or not. 1412 */ 1413 err = destroy_callback(zhp, &cb); 1414 zhp = NULL; 1415 if (err == 0) { 1416 err = zfs_destroy_snaps_nvl(g_zfs, 1417 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1418 } 1419 if (err != 0) 1420 rv = 1; 1421 } 1422 1423out: 1424 fnvlist_free(cb.cb_batchedsnaps); 1425 fnvlist_free(cb.cb_nvl); 1426 if (zhp != NULL) 1427 zfs_close(zhp); 1428 return (rv); 1429} 1430 1431static boolean_t 1432is_recvd_column(zprop_get_cbdata_t *cbp) 1433{ 1434 int i; 1435 zfs_get_column_t col; 1436 1437 for (i = 0; i < ZFS_GET_NCOLS && 1438 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1439 if (col == GET_COL_RECVD) 1440 return (B_TRUE); 1441 return (B_FALSE); 1442} 1443 1444/* 1445 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1446 * < all | property[,property]... > < fs | snap | vol > ... 1447 * 1448 * -r recurse over any child datasets 1449 * -H scripted mode. Headers are stripped, and fields are separated 1450 * by tabs instead of spaces. 1451 * -o Set of fields to display. One of "name,property,value, 1452 * received,source". Default is "name,property,value,source". 1453 * "all" is an alias for all five. 1454 * -s Set of sources to allow. One of 1455 * "local,default,inherited,received,temporary,none". Default is 1456 * all six. 1457 * -p Display values in parsable (literal) format. 1458 * 1459 * Prints properties for the given datasets. The user can control which 1460 * columns to display as well as which property types to allow. 1461 */ 1462 1463/* 1464 * Invoked to display the properties for a single dataset. 1465 */ 1466static int 1467get_callback(zfs_handle_t *zhp, void *data) 1468{ 1469 char buf[ZFS_MAXPROPLEN]; 1470 char rbuf[ZFS_MAXPROPLEN]; 1471 zprop_source_t sourcetype; 1472 char source[ZFS_MAXNAMELEN]; 1473 zprop_get_cbdata_t *cbp = data; 1474 nvlist_t *user_props = zfs_get_user_props(zhp); 1475 zprop_list_t *pl = cbp->cb_proplist; 1476 nvlist_t *propval; 1477 char *strval; 1478 char *sourceval; 1479 boolean_t received = is_recvd_column(cbp); 1480 1481 for (; pl != NULL; pl = pl->pl_next) { 1482 char *recvdval = NULL; 1483 /* 1484 * Skip the special fake placeholder. This will also skip over 1485 * the name property when 'all' is specified. 1486 */ 1487 if (pl->pl_prop == ZFS_PROP_NAME && 1488 pl == cbp->cb_proplist) 1489 continue; 1490 1491 if (pl->pl_prop != ZPROP_INVAL) { 1492 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1493 sizeof (buf), &sourcetype, source, 1494 sizeof (source), 1495 cbp->cb_literal) != 0) { 1496 if (pl->pl_all) 1497 continue; 1498 if (!zfs_prop_valid_for_type(pl->pl_prop, 1499 ZFS_TYPE_DATASET)) { 1500 (void) fprintf(stderr, 1501 gettext("No such property '%s'\n"), 1502 zfs_prop_to_name(pl->pl_prop)); 1503 continue; 1504 } 1505 sourcetype = ZPROP_SRC_NONE; 1506 (void) strlcpy(buf, "-", sizeof (buf)); 1507 } 1508 1509 if (received && (zfs_prop_get_recvd(zhp, 1510 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1511 cbp->cb_literal) == 0)) 1512 recvdval = rbuf; 1513 1514 zprop_print_one_property(zfs_get_name(zhp), cbp, 1515 zfs_prop_to_name(pl->pl_prop), 1516 buf, sourcetype, source, recvdval); 1517 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1518 sourcetype = ZPROP_SRC_LOCAL; 1519 1520 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1521 buf, sizeof (buf), cbp->cb_literal) != 0) { 1522 sourcetype = ZPROP_SRC_NONE; 1523 (void) strlcpy(buf, "-", sizeof (buf)); 1524 } 1525 1526 zprop_print_one_property(zfs_get_name(zhp), cbp, 1527 pl->pl_user_prop, buf, sourcetype, source, NULL); 1528 } else if (zfs_prop_written(pl->pl_user_prop)) { 1529 sourcetype = ZPROP_SRC_LOCAL; 1530 1531 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1532 buf, sizeof (buf), cbp->cb_literal) != 0) { 1533 sourcetype = ZPROP_SRC_NONE; 1534 (void) strlcpy(buf, "-", sizeof (buf)); 1535 } 1536 1537 zprop_print_one_property(zfs_get_name(zhp), cbp, 1538 pl->pl_user_prop, buf, sourcetype, source, NULL); 1539 } else { 1540 if (nvlist_lookup_nvlist(user_props, 1541 pl->pl_user_prop, &propval) != 0) { 1542 if (pl->pl_all) 1543 continue; 1544 sourcetype = ZPROP_SRC_NONE; 1545 strval = "-"; 1546 } else { 1547 verify(nvlist_lookup_string(propval, 1548 ZPROP_VALUE, &strval) == 0); 1549 verify(nvlist_lookup_string(propval, 1550 ZPROP_SOURCE, &sourceval) == 0); 1551 1552 if (strcmp(sourceval, 1553 zfs_get_name(zhp)) == 0) { 1554 sourcetype = ZPROP_SRC_LOCAL; 1555 } else if (strcmp(sourceval, 1556 ZPROP_SOURCE_VAL_RECVD) == 0) { 1557 sourcetype = ZPROP_SRC_RECEIVED; 1558 } else { 1559 sourcetype = ZPROP_SRC_INHERITED; 1560 (void) strlcpy(source, 1561 sourceval, sizeof (source)); 1562 } 1563 } 1564 1565 if (received && (zfs_prop_get_recvd(zhp, 1566 pl->pl_user_prop, rbuf, sizeof (rbuf), 1567 cbp->cb_literal) == 0)) 1568 recvdval = rbuf; 1569 1570 zprop_print_one_property(zfs_get_name(zhp), cbp, 1571 pl->pl_user_prop, strval, sourcetype, 1572 source, recvdval); 1573 } 1574 } 1575 1576 return (0); 1577} 1578 1579static int 1580zfs_do_get(int argc, char **argv) 1581{ 1582 zprop_get_cbdata_t cb = { 0 }; 1583 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1584 int types = ZFS_TYPE_DATASET; 1585 char *value, *fields; 1586 int ret = 0; 1587 int limit = 0; 1588 zprop_list_t fake_name = { 0 }; 1589 1590 /* 1591 * Set up default columns and sources. 1592 */ 1593 cb.cb_sources = ZPROP_SRC_ALL; 1594 cb.cb_columns[0] = GET_COL_NAME; 1595 cb.cb_columns[1] = GET_COL_PROPERTY; 1596 cb.cb_columns[2] = GET_COL_VALUE; 1597 cb.cb_columns[3] = GET_COL_SOURCE; 1598 cb.cb_type = ZFS_TYPE_DATASET; 1599 1600 /* check options */ 1601 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1602 switch (c) { 1603 case 'p': 1604 cb.cb_literal = B_TRUE; 1605 break; 1606 case 'd': 1607 limit = parse_depth(optarg, &flags); 1608 break; 1609 case 'r': 1610 flags |= ZFS_ITER_RECURSE; 1611 break; 1612 case 'H': 1613 cb.cb_scripted = B_TRUE; 1614 break; 1615 case ':': 1616 (void) fprintf(stderr, gettext("missing argument for " 1617 "'%c' option\n"), optopt); 1618 usage(B_FALSE); 1619 break; 1620 case 'o': 1621 /* 1622 * Process the set of columns to display. We zero out 1623 * the structure to give us a blank slate. 1624 */ 1625 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1626 i = 0; 1627 while (*optarg != '\0') { 1628 static char *col_subopts[] = 1629 { "name", "property", "value", "received", 1630 "source", "all", NULL }; 1631 1632 if (i == ZFS_GET_NCOLS) { 1633 (void) fprintf(stderr, gettext("too " 1634 "many fields given to -o " 1635 "option\n")); 1636 usage(B_FALSE); 1637 } 1638 1639 switch (getsubopt(&optarg, col_subopts, 1640 &value)) { 1641 case 0: 1642 cb.cb_columns[i++] = GET_COL_NAME; 1643 break; 1644 case 1: 1645 cb.cb_columns[i++] = GET_COL_PROPERTY; 1646 break; 1647 case 2: 1648 cb.cb_columns[i++] = GET_COL_VALUE; 1649 break; 1650 case 3: 1651 cb.cb_columns[i++] = GET_COL_RECVD; 1652 flags |= ZFS_ITER_RECVD_PROPS; 1653 break; 1654 case 4: 1655 cb.cb_columns[i++] = GET_COL_SOURCE; 1656 break; 1657 case 5: 1658 if (i > 0) { 1659 (void) fprintf(stderr, 1660 gettext("\"all\" conflicts " 1661 "with specific fields " 1662 "given to -o option\n")); 1663 usage(B_FALSE); 1664 } 1665 cb.cb_columns[0] = GET_COL_NAME; 1666 cb.cb_columns[1] = GET_COL_PROPERTY; 1667 cb.cb_columns[2] = GET_COL_VALUE; 1668 cb.cb_columns[3] = GET_COL_RECVD; 1669 cb.cb_columns[4] = GET_COL_SOURCE; 1670 flags |= ZFS_ITER_RECVD_PROPS; 1671 i = ZFS_GET_NCOLS; 1672 break; 1673 default: 1674 (void) fprintf(stderr, 1675 gettext("invalid column name " 1676 "'%s'\n"), value); 1677 usage(B_FALSE); 1678 } 1679 } 1680 break; 1681 1682 case 's': 1683 cb.cb_sources = 0; 1684 while (*optarg != '\0') { 1685 static char *source_subopts[] = { 1686 "local", "default", "inherited", 1687 "received", "temporary", "none", 1688 NULL }; 1689 1690 switch (getsubopt(&optarg, source_subopts, 1691 &value)) { 1692 case 0: 1693 cb.cb_sources |= ZPROP_SRC_LOCAL; 1694 break; 1695 case 1: 1696 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1697 break; 1698 case 2: 1699 cb.cb_sources |= ZPROP_SRC_INHERITED; 1700 break; 1701 case 3: 1702 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1703 break; 1704 case 4: 1705 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1706 break; 1707 case 5: 1708 cb.cb_sources |= ZPROP_SRC_NONE; 1709 break; 1710 default: 1711 (void) fprintf(stderr, 1712 gettext("invalid source " 1713 "'%s'\n"), value); 1714 usage(B_FALSE); 1715 } 1716 } 1717 break; 1718 1719 case 't': 1720 types = 0; 1721 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1722 while (*optarg != '\0') { 1723 static char *type_subopts[] = { "filesystem", 1724 "volume", "snapshot", "bookmark", 1725 "all", NULL }; 1726 1727 switch (getsubopt(&optarg, type_subopts, 1728 &value)) { 1729 case 0: 1730 types |= ZFS_TYPE_FILESYSTEM; 1731 break; 1732 case 1: 1733 types |= ZFS_TYPE_VOLUME; 1734 break; 1735 case 2: 1736 types |= ZFS_TYPE_SNAPSHOT; 1737 break; 1738 case 3: 1739 types |= ZFS_TYPE_BOOKMARK; 1740 break; 1741 case 4: 1742 types = ZFS_TYPE_DATASET | 1743 ZFS_TYPE_BOOKMARK; 1744 break; 1745 1746 default: 1747 (void) fprintf(stderr, 1748 gettext("invalid type '%s'\n"), 1749 value); 1750 usage(B_FALSE); 1751 } 1752 } 1753 break; 1754 1755 case '?': 1756 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1757 optopt); 1758 usage(B_FALSE); 1759 } 1760 } 1761 1762 argc -= optind; 1763 argv += optind; 1764 1765 if (argc < 1) { 1766 (void) fprintf(stderr, gettext("missing property " 1767 "argument\n")); 1768 usage(B_FALSE); 1769 } 1770 1771 fields = argv[0]; 1772 1773 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1774 != 0) 1775 usage(B_FALSE); 1776 1777 argc--; 1778 argv++; 1779 1780 /* 1781 * As part of zfs_expand_proplist(), we keep track of the maximum column 1782 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1783 * need to know the maximum name length. However, the user likely did 1784 * not specify 'name' as one of the properties to fetch, so we need to 1785 * make sure we always include at least this property for 1786 * print_get_headers() to work properly. 1787 */ 1788 if (cb.cb_proplist != NULL) { 1789 fake_name.pl_prop = ZFS_PROP_NAME; 1790 fake_name.pl_width = strlen(gettext("NAME")); 1791 fake_name.pl_next = cb.cb_proplist; 1792 cb.cb_proplist = &fake_name; 1793 } 1794 1795 cb.cb_first = B_TRUE; 1796 1797 /* run for each object */ 1798 ret = zfs_for_each(argc, argv, flags, types, NULL, 1799 &cb.cb_proplist, limit, get_callback, &cb); 1800 1801 if (cb.cb_proplist == &fake_name) 1802 zprop_free_list(fake_name.pl_next); 1803 else 1804 zprop_free_list(cb.cb_proplist); 1805 1806 return (ret); 1807} 1808 1809/* 1810 * inherit [-rS] <property> <fs|vol> ... 1811 * 1812 * -r Recurse over all children 1813 * -S Revert to received value, if any 1814 * 1815 * For each dataset specified on the command line, inherit the given property 1816 * from its parent. Inheriting a property at the pool level will cause it to 1817 * use the default value. The '-r' flag will recurse over all children, and is 1818 * useful for setting a property on a hierarchy-wide basis, regardless of any 1819 * local modifications for each dataset. 1820 */ 1821 1822typedef struct inherit_cbdata { 1823 const char *cb_propname; 1824 boolean_t cb_received; 1825} inherit_cbdata_t; 1826 1827static int 1828inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1829{ 1830 inherit_cbdata_t *cb = data; 1831 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1832 1833 /* 1834 * If we're doing it recursively, then ignore properties that 1835 * are not valid for this type of dataset. 1836 */ 1837 if (prop != ZPROP_INVAL && 1838 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1839 return (0); 1840 1841 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1842} 1843 1844static int 1845inherit_cb(zfs_handle_t *zhp, void *data) 1846{ 1847 inherit_cbdata_t *cb = data; 1848 1849 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1850} 1851 1852static int 1853zfs_do_inherit(int argc, char **argv) 1854{ 1855 int c; 1856 zfs_prop_t prop; 1857 inherit_cbdata_t cb = { 0 }; 1858 char *propname; 1859 int ret = 0; 1860 int flags = 0; 1861 boolean_t received = B_FALSE; 1862 1863 /* check options */ 1864 while ((c = getopt(argc, argv, "rS")) != -1) { 1865 switch (c) { 1866 case 'r': 1867 flags |= ZFS_ITER_RECURSE; 1868 break; 1869 case 'S': 1870 received = B_TRUE; 1871 break; 1872 case '?': 1873 default: 1874 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1875 optopt); 1876 usage(B_FALSE); 1877 } 1878 } 1879 1880 argc -= optind; 1881 argv += optind; 1882 1883 /* check number of arguments */ 1884 if (argc < 1) { 1885 (void) fprintf(stderr, gettext("missing property argument\n")); 1886 usage(B_FALSE); 1887 } 1888 if (argc < 2) { 1889 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1890 usage(B_FALSE); 1891 } 1892 1893 propname = argv[0]; 1894 argc--; 1895 argv++; 1896 1897 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1898 if (zfs_prop_readonly(prop)) { 1899 (void) fprintf(stderr, gettext( 1900 "%s property is read-only\n"), 1901 propname); 1902 return (1); 1903 } 1904 if (!zfs_prop_inheritable(prop) && !received) { 1905 (void) fprintf(stderr, gettext("'%s' property cannot " 1906 "be inherited\n"), propname); 1907 if (prop == ZFS_PROP_QUOTA || 1908 prop == ZFS_PROP_RESERVATION || 1909 prop == ZFS_PROP_REFQUOTA || 1910 prop == ZFS_PROP_REFRESERVATION) 1911 (void) fprintf(stderr, gettext("use 'zfs set " 1912 "%s=none' to clear\n"), propname); 1913 return (1); 1914 } 1915 if (received && (prop == ZFS_PROP_VOLSIZE || 1916 prop == ZFS_PROP_VERSION)) { 1917 (void) fprintf(stderr, gettext("'%s' property cannot " 1918 "be reverted to a received value\n"), propname); 1919 return (1); 1920 } 1921 } else if (!zfs_prop_user(propname)) { 1922 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1923 propname); 1924 usage(B_FALSE); 1925 } 1926 1927 cb.cb_propname = propname; 1928 cb.cb_received = received; 1929 1930 if (flags & ZFS_ITER_RECURSE) { 1931 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1932 NULL, NULL, 0, inherit_recurse_cb, &cb); 1933 } else { 1934 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1935 NULL, NULL, 0, inherit_cb, &cb); 1936 } 1937 1938 return (ret); 1939} 1940 1941typedef struct upgrade_cbdata { 1942 uint64_t cb_numupgraded; 1943 uint64_t cb_numsamegraded; 1944 uint64_t cb_numfailed; 1945 uint64_t cb_version; 1946 boolean_t cb_newer; 1947 boolean_t cb_foundone; 1948 char cb_lastfs[ZFS_MAXNAMELEN]; 1949} upgrade_cbdata_t; 1950 1951static int 1952same_pool(zfs_handle_t *zhp, const char *name) 1953{ 1954 int len1 = strcspn(name, "/@"); 1955 const char *zhname = zfs_get_name(zhp); 1956 int len2 = strcspn(zhname, "/@"); 1957 1958 if (len1 != len2) 1959 return (B_FALSE); 1960 return (strncmp(name, zhname, len1) == 0); 1961} 1962 1963static int 1964upgrade_list_callback(zfs_handle_t *zhp, void *data) 1965{ 1966 upgrade_cbdata_t *cb = data; 1967 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1968 1969 /* list if it's old/new */ 1970 if ((!cb->cb_newer && version < ZPL_VERSION) || 1971 (cb->cb_newer && version > ZPL_VERSION)) { 1972 char *str; 1973 if (cb->cb_newer) { 1974 str = gettext("The following filesystems are " 1975 "formatted using a newer software version and\n" 1976 "cannot be accessed on the current system.\n\n"); 1977 } else { 1978 str = gettext("The following filesystems are " 1979 "out of date, and can be upgraded. After being\n" 1980 "upgraded, these filesystems (and any 'zfs send' " 1981 "streams generated from\n" 1982 "subsequent snapshots) will no longer be " 1983 "accessible by older software versions.\n\n"); 1984 } 1985 1986 if (!cb->cb_foundone) { 1987 (void) puts(str); 1988 (void) printf(gettext("VER FILESYSTEM\n")); 1989 (void) printf(gettext("--- ------------\n")); 1990 cb->cb_foundone = B_TRUE; 1991 } 1992 1993 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1994 } 1995 1996 return (0); 1997} 1998 1999static int 2000upgrade_set_callback(zfs_handle_t *zhp, void *data) 2001{ 2002 upgrade_cbdata_t *cb = data; 2003 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2004 int needed_spa_version; 2005 int spa_version; 2006 2007 if (zfs_spa_version(zhp, &spa_version) < 0) 2008 return (-1); 2009 2010 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2011 2012 if (needed_spa_version < 0) 2013 return (-1); 2014 2015 if (spa_version < needed_spa_version) { 2016 /* can't upgrade */ 2017 (void) printf(gettext("%s: can not be " 2018 "upgraded; the pool version needs to first " 2019 "be upgraded\nto version %d\n\n"), 2020 zfs_get_name(zhp), needed_spa_version); 2021 cb->cb_numfailed++; 2022 return (0); 2023 } 2024 2025 /* upgrade */ 2026 if (version < cb->cb_version) { 2027 char verstr[16]; 2028 (void) snprintf(verstr, sizeof (verstr), 2029 "%llu", cb->cb_version); 2030 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2031 /* 2032 * If they did "zfs upgrade -a", then we could 2033 * be doing ioctls to different pools. We need 2034 * to log this history once to each pool, and bypass 2035 * the normal history logging that happens in main(). 2036 */ 2037 (void) zpool_log_history(g_zfs, history_str); 2038 log_history = B_FALSE; 2039 } 2040 if (zfs_prop_set(zhp, "version", verstr) == 0) 2041 cb->cb_numupgraded++; 2042 else 2043 cb->cb_numfailed++; 2044 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2045 } else if (version > cb->cb_version) { 2046 /* can't downgrade */ 2047 (void) printf(gettext("%s: can not be downgraded; " 2048 "it is already at version %u\n"), 2049 zfs_get_name(zhp), version); 2050 cb->cb_numfailed++; 2051 } else { 2052 cb->cb_numsamegraded++; 2053 } 2054 return (0); 2055} 2056 2057/* 2058 * zfs upgrade 2059 * zfs upgrade -v 2060 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2061 */ 2062static int 2063zfs_do_upgrade(int argc, char **argv) 2064{ 2065 boolean_t all = B_FALSE; 2066 boolean_t showversions = B_FALSE; 2067 int ret = 0; 2068 upgrade_cbdata_t cb = { 0 }; 2069 int c; 2070 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2071 2072 /* check options */ 2073 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2074 switch (c) { 2075 case 'r': 2076 flags |= ZFS_ITER_RECURSE; 2077 break; 2078 case 'v': 2079 showversions = B_TRUE; 2080 break; 2081 case 'V': 2082 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2083 optarg, &cb.cb_version) != 0) { 2084 (void) fprintf(stderr, 2085 gettext("invalid version %s\n"), optarg); 2086 usage(B_FALSE); 2087 } 2088 break; 2089 case 'a': 2090 all = B_TRUE; 2091 break; 2092 case '?': 2093 default: 2094 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2095 optopt); 2096 usage(B_FALSE); 2097 } 2098 } 2099 2100 argc -= optind; 2101 argv += optind; 2102 2103 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2104 usage(B_FALSE); 2105 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2106 cb.cb_version || argc)) 2107 usage(B_FALSE); 2108 if ((all || argc) && (showversions)) 2109 usage(B_FALSE); 2110 if (all && argc) 2111 usage(B_FALSE); 2112 2113 if (showversions) { 2114 /* Show info on available versions. */ 2115 (void) printf(gettext("The following filesystem versions are " 2116 "supported:\n\n")); 2117 (void) printf(gettext("VER DESCRIPTION\n")); 2118 (void) printf("--- -----------------------------------------" 2119 "---------------\n"); 2120 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2121 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2122 (void) printf(gettext(" 3 Case insensitive and filesystem " 2123 "user identifier (FUID)\n")); 2124 (void) printf(gettext(" 4 userquota, groupquota " 2125 "properties\n")); 2126 (void) printf(gettext(" 5 System attributes\n")); 2127 (void) printf(gettext("\nFor more information on a particular " 2128 "version, including supported releases,\n")); 2129 (void) printf("see the ZFS Administration Guide.\n\n"); 2130 ret = 0; 2131 } else if (argc || all) { 2132 /* Upgrade filesystems */ 2133 if (cb.cb_version == 0) 2134 cb.cb_version = ZPL_VERSION; 2135 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2136 NULL, NULL, 0, upgrade_set_callback, &cb); 2137 (void) printf(gettext("%llu filesystems upgraded\n"), 2138 cb.cb_numupgraded); 2139 if (cb.cb_numsamegraded) { 2140 (void) printf(gettext("%llu filesystems already at " 2141 "this version\n"), 2142 cb.cb_numsamegraded); 2143 } 2144 if (cb.cb_numfailed != 0) 2145 ret = 1; 2146 } else { 2147 /* List old-version filesytems */ 2148 boolean_t found; 2149 (void) printf(gettext("This system is currently running " 2150 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2151 2152 flags |= ZFS_ITER_RECURSE; 2153 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2154 NULL, NULL, 0, upgrade_list_callback, &cb); 2155 2156 found = cb.cb_foundone; 2157 cb.cb_foundone = B_FALSE; 2158 cb.cb_newer = B_TRUE; 2159 2160 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2161 NULL, NULL, 0, upgrade_list_callback, &cb); 2162 2163 if (!cb.cb_foundone && !found) { 2164 (void) printf(gettext("All filesystems are " 2165 "formatted with the current version.\n")); 2166 } 2167 } 2168 2169 return (ret); 2170} 2171 2172/* 2173 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2174 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2175 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2176 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2177 * 2178 * -H Scripted mode; elide headers and separate columns by tabs. 2179 * -i Translate SID to POSIX ID. 2180 * -n Print numeric ID instead of user/group name. 2181 * -o Control which fields to display. 2182 * -p Use exact (parsable) numeric output. 2183 * -s Specify sort columns, descending order. 2184 * -S Specify sort columns, ascending order. 2185 * -t Control which object types to display. 2186 * 2187 * Displays space consumed by, and quotas on, each user in the specified 2188 * filesystem or snapshot. 2189 */ 2190 2191/* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2192enum us_field_types { 2193 USFIELD_TYPE, 2194 USFIELD_NAME, 2195 USFIELD_USED, 2196 USFIELD_QUOTA 2197}; 2198static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2199static char *us_field_names[] = { "type", "name", "used", "quota" }; 2200#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2201 2202#define USTYPE_PSX_GRP (1 << 0) 2203#define USTYPE_PSX_USR (1 << 1) 2204#define USTYPE_SMB_GRP (1 << 2) 2205#define USTYPE_SMB_USR (1 << 3) 2206#define USTYPE_ALL \ 2207 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2208 2209static int us_type_bits[] = { 2210 USTYPE_PSX_GRP, 2211 USTYPE_PSX_USR, 2212 USTYPE_SMB_GRP, 2213 USTYPE_SMB_USR, 2214 USTYPE_ALL 2215}; 2216static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2217 "smbuser", "all" }; 2218 2219typedef struct us_node { 2220 nvlist_t *usn_nvl; 2221 uu_avl_node_t usn_avlnode; 2222 uu_list_node_t usn_listnode; 2223} us_node_t; 2224 2225typedef struct us_cbdata { 2226 nvlist_t **cb_nvlp; 2227 uu_avl_pool_t *cb_avl_pool; 2228 uu_avl_t *cb_avl; 2229 boolean_t cb_numname; 2230 boolean_t cb_nicenum; 2231 boolean_t cb_sid2posix; 2232 zfs_userquota_prop_t cb_prop; 2233 zfs_sort_column_t *cb_sortcol; 2234 size_t cb_width[USFIELD_LAST]; 2235} us_cbdata_t; 2236 2237static boolean_t us_populated = B_FALSE; 2238 2239typedef struct { 2240 zfs_sort_column_t *si_sortcol; 2241 boolean_t si_numname; 2242} us_sort_info_t; 2243 2244static int 2245us_field_index(char *field) 2246{ 2247 int i; 2248 2249 for (i = 0; i < USFIELD_LAST; i++) { 2250 if (strcmp(field, us_field_names[i]) == 0) 2251 return (i); 2252 } 2253 2254 return (-1); 2255} 2256 2257static int 2258us_compare(const void *larg, const void *rarg, void *unused) 2259{ 2260 const us_node_t *l = larg; 2261 const us_node_t *r = rarg; 2262 us_sort_info_t *si = (us_sort_info_t *)unused; 2263 zfs_sort_column_t *sortcol = si->si_sortcol; 2264 boolean_t numname = si->si_numname; 2265 nvlist_t *lnvl = l->usn_nvl; 2266 nvlist_t *rnvl = r->usn_nvl; 2267 int rc = 0; 2268 boolean_t lvb, rvb; 2269 2270 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2271 char *lvstr = ""; 2272 char *rvstr = ""; 2273 uint32_t lv32 = 0; 2274 uint32_t rv32 = 0; 2275 uint64_t lv64 = 0; 2276 uint64_t rv64 = 0; 2277 zfs_prop_t prop = sortcol->sc_prop; 2278 const char *propname = NULL; 2279 boolean_t reverse = sortcol->sc_reverse; 2280 2281 switch (prop) { 2282 case ZFS_PROP_TYPE: 2283 propname = "type"; 2284 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2285 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2286 if (rv32 != lv32) 2287 rc = (rv32 < lv32) ? 1 : -1; 2288 break; 2289 case ZFS_PROP_NAME: 2290 propname = "name"; 2291 if (numname) { 2292 (void) nvlist_lookup_uint64(lnvl, propname, 2293 &lv64); 2294 (void) nvlist_lookup_uint64(rnvl, propname, 2295 &rv64); 2296 if (rv64 != lv64) 2297 rc = (rv64 < lv64) ? 1 : -1; 2298 } else { 2299 (void) nvlist_lookup_string(lnvl, propname, 2300 &lvstr); 2301 (void) nvlist_lookup_string(rnvl, propname, 2302 &rvstr); 2303 rc = strcmp(lvstr, rvstr); 2304 } 2305 break; 2306 case ZFS_PROP_USED: 2307 case ZFS_PROP_QUOTA: 2308 if (!us_populated) 2309 break; 2310 if (prop == ZFS_PROP_USED) 2311 propname = "used"; 2312 else 2313 propname = "quota"; 2314 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2315 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2316 if (rv64 != lv64) 2317 rc = (rv64 < lv64) ? 1 : -1; 2318 break; 2319 } 2320 2321 if (rc != 0) { 2322 if (rc < 0) 2323 return (reverse ? 1 : -1); 2324 else 2325 return (reverse ? -1 : 1); 2326 } 2327 } 2328 2329 /* 2330 * If entries still seem to be the same, check if they are of the same 2331 * type (smbentity is added only if we are doing SID to POSIX ID 2332 * translation where we can have duplicate type/name combinations). 2333 */ 2334 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2335 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2336 lvb != rvb) 2337 return (lvb < rvb ? -1 : 1); 2338 2339 return (0); 2340} 2341 2342static inline const char * 2343us_type2str(unsigned field_type) 2344{ 2345 switch (field_type) { 2346 case USTYPE_PSX_USR: 2347 return ("POSIX User"); 2348 case USTYPE_PSX_GRP: 2349 return ("POSIX Group"); 2350 case USTYPE_SMB_USR: 2351 return ("SMB User"); 2352 case USTYPE_SMB_GRP: 2353 return ("SMB Group"); 2354 default: 2355 return ("Undefined"); 2356 } 2357} 2358 2359static int 2360userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2361{ 2362 us_cbdata_t *cb = (us_cbdata_t *)arg; 2363 zfs_userquota_prop_t prop = cb->cb_prop; 2364 char *name = NULL; 2365 char *propname; 2366 char sizebuf[32]; 2367 us_node_t *node; 2368 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2369 uu_avl_t *avl = cb->cb_avl; 2370 uu_avl_index_t idx; 2371 nvlist_t *props; 2372 us_node_t *n; 2373 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2374 unsigned type; 2375 const char *typestr; 2376 size_t namelen; 2377 size_t typelen; 2378 size_t sizelen; 2379 int typeidx, nameidx, sizeidx; 2380 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2381 boolean_t smbentity = B_FALSE; 2382 2383 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2384 nomem(); 2385 node = safe_malloc(sizeof (us_node_t)); 2386 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2387 node->usn_nvl = props; 2388 2389 if (domain != NULL && domain[0] != '\0') { 2390 /* SMB */ 2391 char sid[ZFS_MAXNAMELEN + 32]; 2392 uid_t id; 2393 uint64_t classes; 2394#ifdef sun 2395 int err; 2396 directory_error_t e; 2397#endif 2398 2399 smbentity = B_TRUE; 2400 2401 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2402 2403 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2404 type = USTYPE_SMB_GRP; 2405#ifdef sun 2406 err = sid_to_id(sid, B_FALSE, &id); 2407#endif 2408 } else { 2409 type = USTYPE_SMB_USR; 2410#ifdef sun 2411 err = sid_to_id(sid, B_TRUE, &id); 2412#endif 2413 } 2414 2415#ifdef sun 2416 if (err == 0) { 2417 rid = id; 2418 if (!cb->cb_sid2posix) { 2419 e = directory_name_from_sid(NULL, sid, &name, 2420 &classes); 2421 if (e != NULL) 2422 directory_error_free(e); 2423 if (name == NULL) 2424 name = sid; 2425 } 2426 } 2427#endif 2428 } 2429 2430 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2431 /* POSIX or -i */ 2432 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2433 type = USTYPE_PSX_GRP; 2434 if (!cb->cb_numname) { 2435 struct group *g; 2436 2437 if ((g = getgrgid(rid)) != NULL) 2438 name = g->gr_name; 2439 } 2440 } else { 2441 type = USTYPE_PSX_USR; 2442 if (!cb->cb_numname) { 2443 struct passwd *p; 2444 2445 if ((p = getpwuid(rid)) != NULL) 2446 name = p->pw_name; 2447 } 2448 } 2449 } 2450 2451 /* 2452 * Make sure that the type/name combination is unique when doing 2453 * SID to POSIX ID translation (hence changing the type from SMB to 2454 * POSIX). 2455 */ 2456 if (cb->cb_sid2posix && 2457 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2458 nomem(); 2459 2460 /* Calculate/update width of TYPE field */ 2461 typestr = us_type2str(type); 2462 typelen = strlen(gettext(typestr)); 2463 typeidx = us_field_index("type"); 2464 if (typelen > cb->cb_width[typeidx]) 2465 cb->cb_width[typeidx] = typelen; 2466 if (nvlist_add_uint32(props, "type", type) != 0) 2467 nomem(); 2468 2469 /* Calculate/update width of NAME field */ 2470 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2471 if (nvlist_add_uint64(props, "name", rid) != 0) 2472 nomem(); 2473 namelen = snprintf(NULL, 0, "%u", rid); 2474 } else { 2475 if (nvlist_add_string(props, "name", name) != 0) 2476 nomem(); 2477 namelen = strlen(name); 2478 } 2479 nameidx = us_field_index("name"); 2480 if (namelen > cb->cb_width[nameidx]) 2481 cb->cb_width[nameidx] = namelen; 2482 2483 /* 2484 * Check if this type/name combination is in the list and update it; 2485 * otherwise add new node to the list. 2486 */ 2487 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2488 uu_avl_insert(avl, node, idx); 2489 } else { 2490 nvlist_free(props); 2491 free(node); 2492 node = n; 2493 props = node->usn_nvl; 2494 } 2495 2496 /* Calculate/update width of USED/QUOTA fields */ 2497 if (cb->cb_nicenum) 2498 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2499 else 2500 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2501 sizelen = strlen(sizebuf); 2502 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2503 propname = "used"; 2504 if (!nvlist_exists(props, "quota")) 2505 (void) nvlist_add_uint64(props, "quota", 0); 2506 } else { 2507 propname = "quota"; 2508 if (!nvlist_exists(props, "used")) 2509 (void) nvlist_add_uint64(props, "used", 0); 2510 } 2511 sizeidx = us_field_index(propname); 2512 if (sizelen > cb->cb_width[sizeidx]) 2513 cb->cb_width[sizeidx] = sizelen; 2514 2515 if (nvlist_add_uint64(props, propname, space) != 0) 2516 nomem(); 2517 2518 return (0); 2519} 2520 2521static void 2522print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2523 size_t *width, us_node_t *node) 2524{ 2525 nvlist_t *nvl = node->usn_nvl; 2526 char valstr[ZFS_MAXNAMELEN]; 2527 boolean_t first = B_TRUE; 2528 int cfield = 0; 2529 int field; 2530 uint32_t ustype; 2531 2532 /* Check type */ 2533 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2534 if (!(ustype & types)) 2535 return; 2536 2537 while ((field = fields[cfield]) != USFIELD_LAST) { 2538 nvpair_t *nvp = NULL; 2539 data_type_t type; 2540 uint32_t val32; 2541 uint64_t val64; 2542 char *strval = NULL; 2543 2544 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2545 if (strcmp(nvpair_name(nvp), 2546 us_field_names[field]) == 0) 2547 break; 2548 } 2549 2550 type = nvpair_type(nvp); 2551 switch (type) { 2552 case DATA_TYPE_UINT32: 2553 (void) nvpair_value_uint32(nvp, &val32); 2554 break; 2555 case DATA_TYPE_UINT64: 2556 (void) nvpair_value_uint64(nvp, &val64); 2557 break; 2558 case DATA_TYPE_STRING: 2559 (void) nvpair_value_string(nvp, &strval); 2560 break; 2561 default: 2562 (void) fprintf(stderr, "invalid data type\n"); 2563 } 2564 2565 switch (field) { 2566 case USFIELD_TYPE: 2567 strval = (char *)us_type2str(val32); 2568 break; 2569 case USFIELD_NAME: 2570 if (type == DATA_TYPE_UINT64) { 2571 (void) sprintf(valstr, "%llu", val64); 2572 strval = valstr; 2573 } 2574 break; 2575 case USFIELD_USED: 2576 case USFIELD_QUOTA: 2577 if (type == DATA_TYPE_UINT64) { 2578 if (parsable) { 2579 (void) sprintf(valstr, "%llu", val64); 2580 } else { 2581 zfs_nicenum(val64, valstr, 2582 sizeof (valstr)); 2583 } 2584 if (field == USFIELD_QUOTA && 2585 strcmp(valstr, "0") == 0) 2586 strval = "none"; 2587 else 2588 strval = valstr; 2589 } 2590 break; 2591 } 2592 2593 if (!first) { 2594 if (scripted) 2595 (void) printf("\t"); 2596 else 2597 (void) printf(" "); 2598 } 2599 if (scripted) 2600 (void) printf("%s", strval); 2601 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2602 (void) printf("%-*s", width[field], strval); 2603 else 2604 (void) printf("%*s", width[field], strval); 2605 2606 first = B_FALSE; 2607 cfield++; 2608 } 2609 2610 (void) printf("\n"); 2611} 2612 2613static void 2614print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2615 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2616{ 2617 us_node_t *node; 2618 const char *col; 2619 int cfield = 0; 2620 int field; 2621 2622 if (!scripted) { 2623 boolean_t first = B_TRUE; 2624 2625 while ((field = fields[cfield]) != USFIELD_LAST) { 2626 col = gettext(us_field_hdr[field]); 2627 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2628 (void) printf(first ? "%-*s" : " %-*s", 2629 width[field], col); 2630 } else { 2631 (void) printf(first ? "%*s" : " %*s", 2632 width[field], col); 2633 } 2634 first = B_FALSE; 2635 cfield++; 2636 } 2637 (void) printf("\n"); 2638 } 2639 2640 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2641 print_us_node(scripted, parsable, fields, types, width, node); 2642 if (rmnode) 2643 nvlist_free(node->usn_nvl); 2644 } 2645} 2646 2647static int 2648zfs_do_userspace(int argc, char **argv) 2649{ 2650 zfs_handle_t *zhp; 2651 zfs_userquota_prop_t p; 2652 2653 uu_avl_pool_t *avl_pool; 2654 uu_avl_t *avl_tree; 2655 uu_avl_walk_t *walk; 2656 char *delim; 2657 char deffields[] = "type,name,used,quota"; 2658 char *ofield = NULL; 2659 char *tfield = NULL; 2660 int cfield = 0; 2661 int fields[256]; 2662 int i; 2663 boolean_t scripted = B_FALSE; 2664 boolean_t prtnum = B_FALSE; 2665 boolean_t parsable = B_FALSE; 2666 boolean_t sid2posix = B_FALSE; 2667 int ret = 0; 2668 int c; 2669 zfs_sort_column_t *sortcol = NULL; 2670 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2671 us_cbdata_t cb; 2672 us_node_t *node; 2673 us_node_t *rmnode; 2674 uu_list_pool_t *listpool; 2675 uu_list_t *list; 2676 uu_avl_index_t idx = 0; 2677 uu_list_index_t idx2 = 0; 2678 2679 if (argc < 2) 2680 usage(B_FALSE); 2681 2682 if (strcmp(argv[0], "groupspace") == 0) 2683 /* Toggle default group types */ 2684 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2685 2686 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2687 switch (c) { 2688 case 'n': 2689 prtnum = B_TRUE; 2690 break; 2691 case 'H': 2692 scripted = B_TRUE; 2693 break; 2694 case 'p': 2695 parsable = B_TRUE; 2696 break; 2697 case 'o': 2698 ofield = optarg; 2699 break; 2700 case 's': 2701 case 'S': 2702 if (zfs_add_sort_column(&sortcol, optarg, 2703 c == 's' ? B_FALSE : B_TRUE) != 0) { 2704 (void) fprintf(stderr, 2705 gettext("invalid field '%s'\n"), optarg); 2706 usage(B_FALSE); 2707 } 2708 break; 2709 case 't': 2710 tfield = optarg; 2711 break; 2712 case 'i': 2713 sid2posix = B_TRUE; 2714 break; 2715 case ':': 2716 (void) fprintf(stderr, gettext("missing argument for " 2717 "'%c' option\n"), optopt); 2718 usage(B_FALSE); 2719 break; 2720 case '?': 2721 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2722 optopt); 2723 usage(B_FALSE); 2724 } 2725 } 2726 2727 argc -= optind; 2728 argv += optind; 2729 2730 if (argc < 1) { 2731 (void) fprintf(stderr, gettext("missing dataset name\n")); 2732 usage(B_FALSE); 2733 } 2734 if (argc > 1) { 2735 (void) fprintf(stderr, gettext("too many arguments\n")); 2736 usage(B_FALSE); 2737 } 2738 2739 /* Use default output fields if not specified using -o */ 2740 if (ofield == NULL) 2741 ofield = deffields; 2742 do { 2743 if ((delim = strchr(ofield, ',')) != NULL) 2744 *delim = '\0'; 2745 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2746 (void) fprintf(stderr, gettext("invalid type '%s' " 2747 "for -o option\n"), ofield); 2748 return (-1); 2749 } 2750 if (delim != NULL) 2751 ofield = delim + 1; 2752 } while (delim != NULL); 2753 fields[cfield] = USFIELD_LAST; 2754 2755 /* Override output types (-t option) */ 2756 if (tfield != NULL) { 2757 types = 0; 2758 2759 do { 2760 boolean_t found = B_FALSE; 2761 2762 if ((delim = strchr(tfield, ',')) != NULL) 2763 *delim = '\0'; 2764 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2765 i++) { 2766 if (strcmp(tfield, us_type_names[i]) == 0) { 2767 found = B_TRUE; 2768 types |= us_type_bits[i]; 2769 break; 2770 } 2771 } 2772 if (!found) { 2773 (void) fprintf(stderr, gettext("invalid type " 2774 "'%s' for -t option\n"), tfield); 2775 return (-1); 2776 } 2777 if (delim != NULL) 2778 tfield = delim + 1; 2779 } while (delim != NULL); 2780 } 2781 2782 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2783 return (1); 2784 2785 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2786 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2787 nomem(); 2788 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2789 nomem(); 2790 2791 /* Always add default sorting columns */ 2792 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2793 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2794 2795 cb.cb_sortcol = sortcol; 2796 cb.cb_numname = prtnum; 2797 cb.cb_nicenum = !parsable; 2798 cb.cb_avl_pool = avl_pool; 2799 cb.cb_avl = avl_tree; 2800 cb.cb_sid2posix = sid2posix; 2801 2802 for (i = 0; i < USFIELD_LAST; i++) 2803 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2804 2805 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2806 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2807 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2808 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2809 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2810 continue; 2811 cb.cb_prop = p; 2812 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2813 return (ret); 2814 } 2815 2816 /* Sort the list */ 2817 if ((node = uu_avl_first(avl_tree)) == NULL) 2818 return (0); 2819 2820 us_populated = B_TRUE; 2821 2822 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2823 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2824 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2825 uu_list_node_init(node, &node->usn_listnode, listpool); 2826 2827 while (node != NULL) { 2828 rmnode = node; 2829 node = uu_avl_next(avl_tree, node); 2830 uu_avl_remove(avl_tree, rmnode); 2831 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2832 uu_list_insert(list, rmnode, idx2); 2833 } 2834 2835 for (node = uu_list_first(list); node != NULL; 2836 node = uu_list_next(list, node)) { 2837 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2838 2839 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2840 uu_avl_insert(avl_tree, node, idx); 2841 } 2842 2843 uu_list_destroy(list); 2844 uu_list_pool_destroy(listpool); 2845 2846 /* Print and free node nvlist memory */ 2847 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2848 cb.cb_avl); 2849 2850 zfs_free_sort_columns(sortcol); 2851 2852 /* Clean up the AVL tree */ 2853 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2854 nomem(); 2855 2856 while ((node = uu_avl_walk_next(walk)) != NULL) { 2857 uu_avl_remove(cb.cb_avl, node); 2858 free(node); 2859 } 2860 2861 uu_avl_walk_end(walk); 2862 uu_avl_destroy(avl_tree); 2863 uu_avl_pool_destroy(avl_pool); 2864 2865 return (ret); 2866} 2867 2868/* 2869 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2870 * [-t type[,...]] [filesystem|volume|snapshot] ... 2871 * 2872 * -H Scripted mode; elide headers and separate columns by tabs. 2873 * -p Display values in parsable (literal) format. 2874 * -r Recurse over all children. 2875 * -d Limit recursion by depth. 2876 * -o Control which fields to display. 2877 * -s Specify sort columns, descending order. 2878 * -S Specify sort columns, ascending order. 2879 * -t Control which object types to display. 2880 * 2881 * When given no arguments, list all filesystems in the system. 2882 * Otherwise, list the specified datasets, optionally recursing down them if 2883 * '-r' is specified. 2884 */ 2885typedef struct list_cbdata { 2886 boolean_t cb_first; 2887 boolean_t cb_literal; 2888 boolean_t cb_scripted; 2889 zprop_list_t *cb_proplist; 2890} list_cbdata_t; 2891 2892/* 2893 * Given a list of columns to display, output appropriate headers for each one. 2894 */ 2895static void 2896print_header(list_cbdata_t *cb) 2897{ 2898 zprop_list_t *pl = cb->cb_proplist; 2899 char headerbuf[ZFS_MAXPROPLEN]; 2900 const char *header; 2901 int i; 2902 boolean_t first = B_TRUE; 2903 boolean_t right_justify; 2904 2905 for (; pl != NULL; pl = pl->pl_next) { 2906 if (!first) { 2907 (void) printf(" "); 2908 } else { 2909 first = B_FALSE; 2910 } 2911 2912 right_justify = B_FALSE; 2913 if (pl->pl_prop != ZPROP_INVAL) { 2914 header = zfs_prop_column_name(pl->pl_prop); 2915 right_justify = zfs_prop_align_right(pl->pl_prop); 2916 } else { 2917 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2918 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2919 headerbuf[i] = '\0'; 2920 header = headerbuf; 2921 } 2922 2923 if (pl->pl_next == NULL && !right_justify) 2924 (void) printf("%s", header); 2925 else if (right_justify) 2926 (void) printf("%*s", pl->pl_width, header); 2927 else 2928 (void) printf("%-*s", pl->pl_width, header); 2929 } 2930 2931 (void) printf("\n"); 2932} 2933 2934/* 2935 * Given a dataset and a list of fields, print out all the properties according 2936 * to the described layout. 2937 */ 2938static void 2939print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2940{ 2941 zprop_list_t *pl = cb->cb_proplist; 2942 boolean_t first = B_TRUE; 2943 char property[ZFS_MAXPROPLEN]; 2944 nvlist_t *userprops = zfs_get_user_props(zhp); 2945 nvlist_t *propval; 2946 char *propstr; 2947 boolean_t right_justify; 2948 2949 for (; pl != NULL; pl = pl->pl_next) { 2950 if (!first) { 2951 if (cb->cb_scripted) 2952 (void) printf("\t"); 2953 else 2954 (void) printf(" "); 2955 } else { 2956 first = B_FALSE; 2957 } 2958 2959 if (pl->pl_prop == ZFS_PROP_NAME) { 2960 (void) strlcpy(property, zfs_get_name(zhp), 2961 sizeof(property)); 2962 propstr = property; 2963 right_justify = zfs_prop_align_right(pl->pl_prop); 2964 } else if (pl->pl_prop != ZPROP_INVAL) { 2965 if (zfs_prop_get(zhp, pl->pl_prop, property, 2966 sizeof (property), NULL, NULL, 0, 2967 cb->cb_literal) != 0) 2968 propstr = "-"; 2969 else 2970 propstr = property; 2971 right_justify = zfs_prop_align_right(pl->pl_prop); 2972 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2973 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2974 property, sizeof (property), cb->cb_literal) != 0) 2975 propstr = "-"; 2976 else 2977 propstr = property; 2978 right_justify = B_TRUE; 2979 } else if (zfs_prop_written(pl->pl_user_prop)) { 2980 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2981 property, sizeof (property), cb->cb_literal) != 0) 2982 propstr = "-"; 2983 else 2984 propstr = property; 2985 right_justify = B_TRUE; 2986 } else { 2987 if (nvlist_lookup_nvlist(userprops, 2988 pl->pl_user_prop, &propval) != 0) 2989 propstr = "-"; 2990 else 2991 verify(nvlist_lookup_string(propval, 2992 ZPROP_VALUE, &propstr) == 0); 2993 right_justify = B_FALSE; 2994 } 2995 2996 /* 2997 * If this is being called in scripted mode, or if this is the 2998 * last column and it is left-justified, don't include a width 2999 * format specifier. 3000 */ 3001 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3002 (void) printf("%s", propstr); 3003 else if (right_justify) 3004 (void) printf("%*s", pl->pl_width, propstr); 3005 else 3006 (void) printf("%-*s", pl->pl_width, propstr); 3007 } 3008 3009 (void) printf("\n"); 3010} 3011 3012/* 3013 * Generic callback function to list a dataset or snapshot. 3014 */ 3015static int 3016list_callback(zfs_handle_t *zhp, void *data) 3017{ 3018 list_cbdata_t *cbp = data; 3019 3020 if (cbp->cb_first) { 3021 if (!cbp->cb_scripted) 3022 print_header(cbp); 3023 cbp->cb_first = B_FALSE; 3024 } 3025 3026 print_dataset(zhp, cbp); 3027 3028 return (0); 3029} 3030 3031static int 3032zfs_do_list(int argc, char **argv) 3033{ 3034 int c; 3035 static char default_fields[] = 3036 "name,used,available,referenced,mountpoint"; 3037 int types = ZFS_TYPE_DATASET; 3038 boolean_t types_specified = B_FALSE; 3039 char *fields = NULL; 3040 list_cbdata_t cb = { 0 }; 3041 char *value; 3042 int limit = 0; 3043 int ret = 0; 3044 zfs_sort_column_t *sortcol = NULL; 3045 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3046 3047 /* check options */ 3048 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3049 switch (c) { 3050 case 'o': 3051 fields = optarg; 3052 break; 3053 case 'p': 3054 cb.cb_literal = B_TRUE; 3055 flags |= ZFS_ITER_LITERAL_PROPS; 3056 break; 3057 case 'd': 3058 limit = parse_depth(optarg, &flags); 3059 break; 3060 case 'r': 3061 flags |= ZFS_ITER_RECURSE; 3062 break; 3063 case 'H': 3064 cb.cb_scripted = B_TRUE; 3065 break; 3066 case 's': 3067 if (zfs_add_sort_column(&sortcol, optarg, 3068 B_FALSE) != 0) { 3069 (void) fprintf(stderr, 3070 gettext("invalid property '%s'\n"), optarg); 3071 usage(B_FALSE); 3072 } 3073 break; 3074 case 'S': 3075 if (zfs_add_sort_column(&sortcol, optarg, 3076 B_TRUE) != 0) { 3077 (void) fprintf(stderr, 3078 gettext("invalid property '%s'\n"), optarg); 3079 usage(B_FALSE); 3080 } 3081 break; 3082 case 't': 3083 types = 0; 3084 types_specified = B_TRUE; 3085 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3086 while (*optarg != '\0') { 3087 static char *type_subopts[] = { "filesystem", 3088 "volume", "snapshot", "snap", "bookmark", 3089 "all", NULL }; 3090 3091 switch (getsubopt(&optarg, type_subopts, 3092 &value)) { 3093 case 0: 3094 types |= ZFS_TYPE_FILESYSTEM; 3095 break; 3096 case 1: 3097 types |= ZFS_TYPE_VOLUME; 3098 break; 3099 case 2: 3100 case 3: 3101 types |= ZFS_TYPE_SNAPSHOT; 3102 break; 3103 case 4: 3104 types |= ZFS_TYPE_BOOKMARK; 3105 break; 3106 case 5: 3107 types = ZFS_TYPE_DATASET | 3108 ZFS_TYPE_BOOKMARK; 3109 break; 3110 default: 3111 (void) fprintf(stderr, 3112 gettext("invalid type '%s'\n"), 3113 value); 3114 usage(B_FALSE); 3115 } 3116 } 3117 break; 3118 case ':': 3119 (void) fprintf(stderr, gettext("missing argument for " 3120 "'%c' option\n"), optopt); 3121 usage(B_FALSE); 3122 break; 3123 case '?': 3124 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3125 optopt); 3126 usage(B_FALSE); 3127 } 3128 } 3129 3130 argc -= optind; 3131 argv += optind; 3132 3133 if (fields == NULL) 3134 fields = default_fields; 3135 3136 /* 3137 * If we are only going to list snapshot names and sort by name, 3138 * then we can use faster version. 3139 */ 3140 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3141 flags |= ZFS_ITER_SIMPLE; 3142 3143 /* 3144 * If "-o space" and no types were specified, don't display snapshots. 3145 */ 3146 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3147 types &= ~ZFS_TYPE_SNAPSHOT; 3148 3149 /* 3150 * If the user specifies '-o all', the zprop_get_list() doesn't 3151 * normally include the name of the dataset. For 'zfs list', we always 3152 * want this property to be first. 3153 */ 3154 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3155 != 0) 3156 usage(B_FALSE); 3157 3158 cb.cb_first = B_TRUE; 3159 3160 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3161 limit, list_callback, &cb); 3162 3163 zprop_free_list(cb.cb_proplist); 3164 zfs_free_sort_columns(sortcol); 3165 3166 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3167 (void) printf(gettext("no datasets available\n")); 3168 3169 return (ret); 3170} 3171 3172/* 3173 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3174 * zfs rename [-f] -p <fs | vol> <fs | vol> 3175 * zfs rename -r <snap> <snap> 3176 * zfs rename -u [-p] <fs> <fs> 3177 * 3178 * Renames the given dataset to another of the same type. 3179 * 3180 * The '-p' flag creates all the non-existing ancestors of the target first. 3181 */ 3182/* ARGSUSED */ 3183static int 3184zfs_do_rename(int argc, char **argv) 3185{ 3186 zfs_handle_t *zhp; 3187 renameflags_t flags = { 0 }; 3188 int c; 3189 int ret = 0; 3190 int types; 3191 boolean_t parents = B_FALSE; 3192 char *snapshot = NULL; 3193 3194 /* check options */ 3195 while ((c = getopt(argc, argv, "fpru")) != -1) { 3196 switch (c) { 3197 case 'p': 3198 parents = B_TRUE; 3199 break; 3200 case 'r': 3201 flags.recurse = B_TRUE; 3202 break; 3203 case 'u': 3204 flags.nounmount = B_TRUE; 3205 break; 3206 case 'f': 3207 flags.forceunmount = B_TRUE; 3208 break; 3209 case '?': 3210 default: 3211 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3212 optopt); 3213 usage(B_FALSE); 3214 } 3215 } 3216 3217 argc -= optind; 3218 argv += optind; 3219 3220 /* check number of arguments */ 3221 if (argc < 1) { 3222 (void) fprintf(stderr, gettext("missing source dataset " 3223 "argument\n")); 3224 usage(B_FALSE); 3225 } 3226 if (argc < 2) { 3227 (void) fprintf(stderr, gettext("missing target dataset " 3228 "argument\n")); 3229 usage(B_FALSE); 3230 } 3231 if (argc > 2) { 3232 (void) fprintf(stderr, gettext("too many arguments\n")); 3233 usage(B_FALSE); 3234 } 3235 3236 if (flags.recurse && parents) { 3237 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3238 "exclusive\n")); 3239 usage(B_FALSE); 3240 } 3241 3242 if (flags.recurse && strchr(argv[0], '@') == 0) { 3243 (void) fprintf(stderr, gettext("source dataset for recursive " 3244 "rename must be a snapshot\n")); 3245 usage(B_FALSE); 3246 } 3247 3248 if (flags.nounmount && parents) { 3249 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3250 "exclusive\n")); 3251 usage(B_FALSE); 3252 } 3253 3254 if (flags.nounmount) 3255 types = ZFS_TYPE_FILESYSTEM; 3256 else if (parents) 3257 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3258 else 3259 types = ZFS_TYPE_DATASET; 3260 3261 if (flags.recurse) { 3262 /* 3263 * When we do recursive rename we are fine when the given 3264 * snapshot for the given dataset doesn't exist - it can 3265 * still exists below. 3266 */ 3267 3268 snapshot = strchr(argv[0], '@'); 3269 assert(snapshot != NULL); 3270 *snapshot = '\0'; 3271 snapshot++; 3272 } 3273 3274 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3275 return (1); 3276 3277 /* If we were asked and the name looks good, try to create ancestors. */ 3278 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3279 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3280 zfs_close(zhp); 3281 return (1); 3282 } 3283 3284 ret = (zfs_rename(zhp, snapshot, argv[1], flags) != 0); 3285 3286 zfs_close(zhp); 3287 return (ret); 3288} 3289 3290/* 3291 * zfs promote <fs> 3292 * 3293 * Promotes the given clone fs to be the parent 3294 */ 3295/* ARGSUSED */ 3296static int 3297zfs_do_promote(int argc, char **argv) 3298{ 3299 zfs_handle_t *zhp; 3300 int ret = 0; 3301 3302 /* check options */ 3303 if (argc > 1 && argv[1][0] == '-') { 3304 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3305 argv[1][1]); 3306 usage(B_FALSE); 3307 } 3308 3309 /* check number of arguments */ 3310 if (argc < 2) { 3311 (void) fprintf(stderr, gettext("missing clone filesystem" 3312 " argument\n")); 3313 usage(B_FALSE); 3314 } 3315 if (argc > 2) { 3316 (void) fprintf(stderr, gettext("too many arguments\n")); 3317 usage(B_FALSE); 3318 } 3319 3320 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3321 if (zhp == NULL) 3322 return (1); 3323 3324 ret = (zfs_promote(zhp) != 0); 3325 3326 3327 zfs_close(zhp); 3328 return (ret); 3329} 3330 3331/* 3332 * zfs rollback [-rRf] <snapshot> 3333 * 3334 * -r Delete any intervening snapshots before doing rollback 3335 * -R Delete any snapshots and their clones 3336 * -f ignored for backwards compatability 3337 * 3338 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3339 * since then and making it the active dataset. If more recent snapshots exist, 3340 * the command will complain unless the '-r' flag is given. 3341 */ 3342typedef struct rollback_cbdata { 3343 uint64_t cb_create; 3344 boolean_t cb_first; 3345 int cb_doclones; 3346 char *cb_target; 3347 int cb_error; 3348 boolean_t cb_recurse; 3349} rollback_cbdata_t; 3350 3351static int 3352rollback_check_dependent(zfs_handle_t *zhp, void *data) 3353{ 3354 rollback_cbdata_t *cbp = data; 3355 3356 if (cbp->cb_first && cbp->cb_recurse) { 3357 (void) fprintf(stderr, gettext("cannot rollback to " 3358 "'%s': clones of previous snapshots exist\n"), 3359 cbp->cb_target); 3360 (void) fprintf(stderr, gettext("use '-R' to " 3361 "force deletion of the following clones and " 3362 "dependents:\n")); 3363 cbp->cb_first = 0; 3364 cbp->cb_error = 1; 3365 } 3366 3367 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3368 3369 zfs_close(zhp); 3370 return (0); 3371} 3372/* 3373 * Report any snapshots more recent than the one specified. Used when '-r' is 3374 * not specified. We reuse this same callback for the snapshot dependents - if 3375 * 'cb_dependent' is set, then this is a dependent and we should report it 3376 * without checking the transaction group. 3377 */ 3378static int 3379rollback_check(zfs_handle_t *zhp, void *data) 3380{ 3381 rollback_cbdata_t *cbp = data; 3382 3383 if (cbp->cb_doclones) { 3384 zfs_close(zhp); 3385 return (0); 3386 } 3387 3388 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3389 if (cbp->cb_first && !cbp->cb_recurse) { 3390 (void) fprintf(stderr, gettext("cannot " 3391 "rollback to '%s': more recent snapshots " 3392 "or bookmarks exist\n"), 3393 cbp->cb_target); 3394 (void) fprintf(stderr, gettext("use '-r' to " 3395 "force deletion of the following " 3396 "snapshots and bookmarks:\n")); 3397 cbp->cb_first = 0; 3398 cbp->cb_error = 1; 3399 } 3400 3401 if (cbp->cb_recurse) { 3402 if (zfs_iter_dependents(zhp, B_TRUE, 3403 rollback_check_dependent, cbp) != 0) { 3404 zfs_close(zhp); 3405 return (-1); 3406 } 3407 } else { 3408 (void) fprintf(stderr, "%s\n", 3409 zfs_get_name(zhp)); 3410 } 3411 } 3412 zfs_close(zhp); 3413 return (0); 3414} 3415 3416static int 3417zfs_do_rollback(int argc, char **argv) 3418{ 3419 int ret = 0; 3420 int c; 3421 boolean_t force = B_FALSE; 3422 rollback_cbdata_t cb = { 0 }; 3423 zfs_handle_t *zhp, *snap; 3424 char parentname[ZFS_MAXNAMELEN]; 3425 char *delim; 3426 3427 /* check options */ 3428 while ((c = getopt(argc, argv, "rRf")) != -1) { 3429 switch (c) { 3430 case 'r': 3431 cb.cb_recurse = 1; 3432 break; 3433 case 'R': 3434 cb.cb_recurse = 1; 3435 cb.cb_doclones = 1; 3436 break; 3437 case 'f': 3438 force = B_TRUE; 3439 break; 3440 case '?': 3441 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3442 optopt); 3443 usage(B_FALSE); 3444 } 3445 } 3446 3447 argc -= optind; 3448 argv += optind; 3449 3450 /* check number of arguments */ 3451 if (argc < 1) { 3452 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3453 usage(B_FALSE); 3454 } 3455 if (argc > 1) { 3456 (void) fprintf(stderr, gettext("too many arguments\n")); 3457 usage(B_FALSE); 3458 } 3459 3460 /* open the snapshot */ 3461 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3462 return (1); 3463 3464 /* open the parent dataset */ 3465 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3466 verify((delim = strrchr(parentname, '@')) != NULL); 3467 *delim = '\0'; 3468 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3469 zfs_close(snap); 3470 return (1); 3471 } 3472 3473 /* 3474 * Check for more recent snapshots and/or clones based on the presence 3475 * of '-r' and '-R'. 3476 */ 3477 cb.cb_target = argv[0]; 3478 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3479 cb.cb_first = B_TRUE; 3480 cb.cb_error = 0; 3481 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3482 goto out; 3483 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3484 goto out; 3485 3486 if ((ret = cb.cb_error) != 0) 3487 goto out; 3488 3489 /* 3490 * Rollback parent to the given snapshot. 3491 */ 3492 ret = zfs_rollback(zhp, snap, force); 3493 3494out: 3495 zfs_close(snap); 3496 zfs_close(zhp); 3497 3498 if (ret == 0) 3499 return (0); 3500 else 3501 return (1); 3502} 3503 3504/* 3505 * zfs set property=value { fs | snap | vol } ... 3506 * 3507 * Sets the given property for all datasets specified on the command line. 3508 */ 3509typedef struct set_cbdata { 3510 char *cb_propname; 3511 char *cb_value; 3512} set_cbdata_t; 3513 3514static int 3515set_callback(zfs_handle_t *zhp, void *data) 3516{ 3517 set_cbdata_t *cbp = data; 3518 3519 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3520 switch (libzfs_errno(g_zfs)) { 3521 case EZFS_MOUNTFAILED: 3522 (void) fprintf(stderr, gettext("property may be set " 3523 "but unable to remount filesystem\n")); 3524 break; 3525 case EZFS_SHARENFSFAILED: 3526 (void) fprintf(stderr, gettext("property may be set " 3527 "but unable to reshare filesystem\n")); 3528 break; 3529 } 3530 return (1); 3531 } 3532 return (0); 3533} 3534 3535static int 3536zfs_do_set(int argc, char **argv) 3537{ 3538 set_cbdata_t cb; 3539 int ret = 0; 3540 3541 /* check for options */ 3542 if (argc > 1 && argv[1][0] == '-') { 3543 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3544 argv[1][1]); 3545 usage(B_FALSE); 3546 } 3547 3548 /* check number of arguments */ 3549 if (argc < 2) { 3550 (void) fprintf(stderr, gettext("missing property=value " 3551 "argument\n")); 3552 usage(B_FALSE); 3553 } 3554 if (argc < 3) { 3555 (void) fprintf(stderr, gettext("missing dataset name\n")); 3556 usage(B_FALSE); 3557 } 3558 3559 /* validate property=value argument */ 3560 cb.cb_propname = argv[1]; 3561 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3562 (cb.cb_value[1] == '\0')) { 3563 (void) fprintf(stderr, gettext("missing value in " 3564 "property=value argument\n")); 3565 usage(B_FALSE); 3566 } 3567 3568 *cb.cb_value = '\0'; 3569 cb.cb_value++; 3570 3571 if (*cb.cb_propname == '\0') { 3572 (void) fprintf(stderr, 3573 gettext("missing property in property=value argument\n")); 3574 usage(B_FALSE); 3575 } 3576 3577 ret = zfs_for_each(argc - 2, argv + 2, 0, 3578 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3579 3580 return (ret); 3581} 3582 3583typedef struct snap_cbdata { 3584 nvlist_t *sd_nvl; 3585 boolean_t sd_recursive; 3586 const char *sd_snapname; 3587} snap_cbdata_t; 3588 3589static int 3590zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3591{ 3592 snap_cbdata_t *sd = arg; 3593 char *name; 3594 int rv = 0; 3595 int error; 3596 3597 if (sd->sd_recursive && 3598 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3599 zfs_close(zhp); 3600 return (0); 3601 } 3602 3603 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3604 if (error == -1) 3605 nomem(); 3606 fnvlist_add_boolean(sd->sd_nvl, name); 3607 free(name); 3608 3609 if (sd->sd_recursive) 3610 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3611 zfs_close(zhp); 3612 return (rv); 3613} 3614 3615/* 3616 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3617 * 3618 * Creates a snapshot with the given name. While functionally equivalent to 3619 * 'zfs create', it is a separate command to differentiate intent. 3620 */ 3621static int 3622zfs_do_snapshot(int argc, char **argv) 3623{ 3624 int ret = 0; 3625 int c; 3626 nvlist_t *props; 3627 snap_cbdata_t sd = { 0 }; 3628 boolean_t multiple_snaps = B_FALSE; 3629 3630 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3631 nomem(); 3632 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3633 nomem(); 3634 3635 /* check options */ 3636 while ((c = getopt(argc, argv, "ro:")) != -1) { 3637 switch (c) { 3638 case 'o': 3639 if (parseprop(props)) 3640 return (1); 3641 break; 3642 case 'r': 3643 sd.sd_recursive = B_TRUE; 3644 multiple_snaps = B_TRUE; 3645 break; 3646 case '?': 3647 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3648 optopt); 3649 goto usage; 3650 } 3651 } 3652 3653 argc -= optind; 3654 argv += optind; 3655 3656 /* check number of arguments */ 3657 if (argc < 1) { 3658 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3659 goto usage; 3660 } 3661 3662 if (argc > 1) 3663 multiple_snaps = B_TRUE; 3664 for (; argc > 0; argc--, argv++) { 3665 char *atp; 3666 zfs_handle_t *zhp; 3667 3668 atp = strchr(argv[0], '@'); 3669 if (atp == NULL) 3670 goto usage; 3671 *atp = '\0'; 3672 sd.sd_snapname = atp + 1; 3673 zhp = zfs_open(g_zfs, argv[0], 3674 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3675 if (zhp == NULL) 3676 goto usage; 3677 if (zfs_snapshot_cb(zhp, &sd) != 0) 3678 goto usage; 3679 } 3680 3681 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3682 nvlist_free(sd.sd_nvl); 3683 nvlist_free(props); 3684 if (ret != 0 && multiple_snaps) 3685 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3686 return (ret != 0); 3687 3688usage: 3689 nvlist_free(sd.sd_nvl); 3690 nvlist_free(props); 3691 usage(B_FALSE); 3692 return (-1); 3693} 3694 3695/* 3696 * Send a backup stream to stdout. 3697 */ 3698static int 3699zfs_do_send(int argc, char **argv) 3700{ 3701 char *fromname = NULL; 3702 char *toname = NULL; 3703 char *cp; 3704 zfs_handle_t *zhp; 3705 sendflags_t flags = { 0 }; 3706 int c, err; 3707 nvlist_t *dbgnv = NULL; 3708 boolean_t extraverbose = B_FALSE; 3709 3710 /* check options */ 3711 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) { 3712 switch (c) { 3713 case 'i': 3714 if (fromname) 3715 usage(B_FALSE); 3716 fromname = optarg; 3717 break; 3718 case 'I': 3719 if (fromname) 3720 usage(B_FALSE); 3721 fromname = optarg; 3722 flags.doall = B_TRUE; 3723 break; 3724 case 'R': 3725 flags.replicate = B_TRUE; 3726 break; 3727 case 'p': 3728 flags.props = B_TRUE; 3729 break; 3730 case 'P': 3731 flags.parsable = B_TRUE; 3732 flags.verbose = B_TRUE; 3733 break; 3734 case 'v': 3735 if (flags.verbose) 3736 extraverbose = B_TRUE; 3737 flags.verbose = B_TRUE; 3738 flags.progress = B_TRUE; 3739 break; 3740 case 'D': 3741 flags.dedup = B_TRUE; 3742 break; 3743 case 'n': 3744 flags.dryrun = B_TRUE; 3745 break; 3746 case ':': 3747 (void) fprintf(stderr, gettext("missing argument for " 3748 "'%c' option\n"), optopt); 3749 usage(B_FALSE); 3750 break; 3751 case '?': 3752 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3753 optopt); 3754 usage(B_FALSE); 3755 } 3756 } 3757 3758 argc -= optind; 3759 argv += optind; 3760 3761 /* check number of arguments */ 3762 if (argc < 1) { 3763 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3764 usage(B_FALSE); 3765 } 3766 if (argc > 1) { 3767 (void) fprintf(stderr, gettext("too many arguments\n")); 3768 usage(B_FALSE); 3769 } 3770 3771 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3772 (void) fprintf(stderr, 3773 gettext("Error: Stream can not be written to a terminal.\n" 3774 "You must redirect standard output.\n")); 3775 return (1); 3776 } 3777 3778 /* 3779 * Special case sending a filesystem, or from a bookmark. 3780 */ 3781 if (strchr(argv[0], '@') == NULL || 3782 (fromname && strchr(fromname, '#') != NULL)) { 3783 char frombuf[ZFS_MAXNAMELEN]; 3784 3785 if (flags.replicate || flags.doall || flags.props || 3786 flags.dedup || flags.dryrun || flags.verbose || 3787 flags.progress) { 3788 (void) fprintf(stderr, 3789 gettext("Error: " 3790 "Unsupported flag with filesystem or bookmark.\n")); 3791 return (1); 3792 } 3793 3794 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3795 if (zhp == NULL) 3796 return (1); 3797 3798 if (fromname != NULL && 3799 (fromname[0] == '#' || fromname[0] == '@')) { 3800 /* 3801 * Incremental source name begins with # or @. 3802 * Default to same fs as target. 3803 */ 3804 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3805 cp = strchr(frombuf, '@'); 3806 if (cp != NULL) 3807 *cp = '\0'; 3808 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3809 fromname = frombuf; 3810 } 3811 err = zfs_send_one(zhp, fromname, STDOUT_FILENO); 3812 zfs_close(zhp); 3813 return (err != 0); 3814 } 3815 3816 cp = strchr(argv[0], '@'); 3817 *cp = '\0'; 3818 toname = cp + 1; 3819 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3820 if (zhp == NULL) 3821 return (1); 3822 3823 /* 3824 * If they specified the full path to the snapshot, chop off 3825 * everything except the short name of the snapshot, but special 3826 * case if they specify the origin. 3827 */ 3828 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3829 char origin[ZFS_MAXNAMELEN]; 3830 zprop_source_t src; 3831 3832 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3833 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3834 3835 if (strcmp(origin, fromname) == 0) { 3836 fromname = NULL; 3837 flags.fromorigin = B_TRUE; 3838 } else { 3839 *cp = '\0'; 3840 if (cp != fromname && strcmp(argv[0], fromname)) { 3841 (void) fprintf(stderr, 3842 gettext("incremental source must be " 3843 "in same filesystem\n")); 3844 usage(B_FALSE); 3845 } 3846 fromname = cp + 1; 3847 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3848 (void) fprintf(stderr, 3849 gettext("invalid incremental source\n")); 3850 usage(B_FALSE); 3851 } 3852 } 3853 } 3854 3855 if (flags.replicate && fromname == NULL) 3856 flags.doall = B_TRUE; 3857 3858 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3859 extraverbose ? &dbgnv : NULL); 3860 3861 if (extraverbose && dbgnv != NULL) { 3862 /* 3863 * dump_nvlist prints to stdout, but that's been 3864 * redirected to a file. Make it print to stderr 3865 * instead. 3866 */ 3867 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3868 dump_nvlist(dbgnv, 0); 3869 nvlist_free(dbgnv); 3870 } 3871 zfs_close(zhp); 3872 3873 return (err != 0); 3874} 3875 3876/* 3877 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3878 * 3879 * Restore a backup stream from stdin. 3880 */ 3881static int 3882zfs_do_receive(int argc, char **argv) 3883{ 3884 int c, err; 3885 recvflags_t flags = { 0 }; 3886 3887 /* check options */ 3888 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3889 switch (c) { 3890 case 'd': 3891 flags.isprefix = B_TRUE; 3892 break; 3893 case 'e': 3894 flags.isprefix = B_TRUE; 3895 flags.istail = B_TRUE; 3896 break; 3897 case 'n': 3898 flags.dryrun = B_TRUE; 3899 break; 3900 case 'u': 3901 flags.nomount = B_TRUE; 3902 break; 3903 case 'v': 3904 flags.verbose = B_TRUE; 3905 break; 3906 case 'F': 3907 flags.force = B_TRUE; 3908 break; 3909 case ':': 3910 (void) fprintf(stderr, gettext("missing argument for " 3911 "'%c' option\n"), optopt); 3912 usage(B_FALSE); 3913 break; 3914 case '?': 3915 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3916 optopt); 3917 usage(B_FALSE); 3918 } 3919 } 3920 3921 argc -= optind; 3922 argv += optind; 3923 3924 /* check number of arguments */ 3925 if (argc < 1) { 3926 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3927 usage(B_FALSE); 3928 } 3929 if (argc > 1) { 3930 (void) fprintf(stderr, gettext("too many arguments\n")); 3931 usage(B_FALSE); 3932 } 3933 3934 if (isatty(STDIN_FILENO)) { 3935 (void) fprintf(stderr, 3936 gettext("Error: Backup stream can not be read " 3937 "from a terminal.\n" 3938 "You must redirect standard input.\n")); 3939 return (1); 3940 } 3941 3942 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3943 3944 return (err != 0); 3945} 3946 3947/* 3948 * allow/unallow stuff 3949 */ 3950/* copied from zfs/sys/dsl_deleg.h */ 3951#define ZFS_DELEG_PERM_CREATE "create" 3952#define ZFS_DELEG_PERM_DESTROY "destroy" 3953#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3954#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3955#define ZFS_DELEG_PERM_CLONE "clone" 3956#define ZFS_DELEG_PERM_PROMOTE "promote" 3957#define ZFS_DELEG_PERM_RENAME "rename" 3958#define ZFS_DELEG_PERM_MOUNT "mount" 3959#define ZFS_DELEG_PERM_SHARE "share" 3960#define ZFS_DELEG_PERM_SEND "send" 3961#define ZFS_DELEG_PERM_RECEIVE "receive" 3962#define ZFS_DELEG_PERM_ALLOW "allow" 3963#define ZFS_DELEG_PERM_USERPROP "userprop" 3964#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3965#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3966#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3967#define ZFS_DELEG_PERM_USERUSED "userused" 3968#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3969#define ZFS_DELEG_PERM_HOLD "hold" 3970#define ZFS_DELEG_PERM_RELEASE "release" 3971#define ZFS_DELEG_PERM_DIFF "diff" 3972#define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3973 3974#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3975 3976static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3977 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3978 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3979 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3980 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3981 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3982 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3983 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3984 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3985 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3986 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3987 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3988 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3989 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3990 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3991 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3992 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 3993 3994 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3995 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3996 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3997 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3998 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3999 { NULL, ZFS_DELEG_NOTE_NONE } 4000}; 4001 4002/* permission structure */ 4003typedef struct deleg_perm { 4004 zfs_deleg_who_type_t dp_who_type; 4005 const char *dp_name; 4006 boolean_t dp_local; 4007 boolean_t dp_descend; 4008} deleg_perm_t; 4009 4010/* */ 4011typedef struct deleg_perm_node { 4012 deleg_perm_t dpn_perm; 4013 4014 uu_avl_node_t dpn_avl_node; 4015} deleg_perm_node_t; 4016 4017typedef struct fs_perm fs_perm_t; 4018 4019/* permissions set */ 4020typedef struct who_perm { 4021 zfs_deleg_who_type_t who_type; 4022 const char *who_name; /* id */ 4023 char who_ug_name[256]; /* user/group name */ 4024 fs_perm_t *who_fsperm; /* uplink */ 4025 4026 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4027} who_perm_t; 4028 4029/* */ 4030typedef struct who_perm_node { 4031 who_perm_t who_perm; 4032 uu_avl_node_t who_avl_node; 4033} who_perm_node_t; 4034 4035typedef struct fs_perm_set fs_perm_set_t; 4036/* fs permissions */ 4037struct fs_perm { 4038 const char *fsp_name; 4039 4040 uu_avl_t *fsp_sc_avl; /* sets,create */ 4041 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4042 4043 fs_perm_set_t *fsp_set; /* uplink */ 4044}; 4045 4046/* */ 4047typedef struct fs_perm_node { 4048 fs_perm_t fspn_fsperm; 4049 uu_avl_t *fspn_avl; 4050 4051 uu_list_node_t fspn_list_node; 4052} fs_perm_node_t; 4053 4054/* top level structure */ 4055struct fs_perm_set { 4056 uu_list_pool_t *fsps_list_pool; 4057 uu_list_t *fsps_list; /* list of fs_perms */ 4058 4059 uu_avl_pool_t *fsps_named_set_avl_pool; 4060 uu_avl_pool_t *fsps_who_perm_avl_pool; 4061 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4062}; 4063 4064static inline const char * 4065deleg_perm_type(zfs_deleg_note_t note) 4066{ 4067 /* subcommands */ 4068 switch (note) { 4069 /* SUBCOMMANDS */ 4070 /* OTHER */ 4071 case ZFS_DELEG_NOTE_GROUPQUOTA: 4072 case ZFS_DELEG_NOTE_GROUPUSED: 4073 case ZFS_DELEG_NOTE_USERPROP: 4074 case ZFS_DELEG_NOTE_USERQUOTA: 4075 case ZFS_DELEG_NOTE_USERUSED: 4076 /* other */ 4077 return (gettext("other")); 4078 default: 4079 return (gettext("subcommand")); 4080 } 4081} 4082 4083static int inline 4084who_type2weight(zfs_deleg_who_type_t who_type) 4085{ 4086 int res; 4087 switch (who_type) { 4088 case ZFS_DELEG_NAMED_SET_SETS: 4089 case ZFS_DELEG_NAMED_SET: 4090 res = 0; 4091 break; 4092 case ZFS_DELEG_CREATE_SETS: 4093 case ZFS_DELEG_CREATE: 4094 res = 1; 4095 break; 4096 case ZFS_DELEG_USER_SETS: 4097 case ZFS_DELEG_USER: 4098 res = 2; 4099 break; 4100 case ZFS_DELEG_GROUP_SETS: 4101 case ZFS_DELEG_GROUP: 4102 res = 3; 4103 break; 4104 case ZFS_DELEG_EVERYONE_SETS: 4105 case ZFS_DELEG_EVERYONE: 4106 res = 4; 4107 break; 4108 default: 4109 res = -1; 4110 } 4111 4112 return (res); 4113} 4114 4115/* ARGSUSED */ 4116static int 4117who_perm_compare(const void *larg, const void *rarg, void *unused) 4118{ 4119 const who_perm_node_t *l = larg; 4120 const who_perm_node_t *r = rarg; 4121 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4122 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4123 int lweight = who_type2weight(ltype); 4124 int rweight = who_type2weight(rtype); 4125 int res = lweight - rweight; 4126 if (res == 0) 4127 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4128 ZFS_MAX_DELEG_NAME-1); 4129 4130 if (res == 0) 4131 return (0); 4132 if (res > 0) 4133 return (1); 4134 else 4135 return (-1); 4136} 4137 4138/* ARGSUSED */ 4139static int 4140deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4141{ 4142 const deleg_perm_node_t *l = larg; 4143 const deleg_perm_node_t *r = rarg; 4144 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4145 ZFS_MAX_DELEG_NAME-1); 4146 4147 if (res == 0) 4148 return (0); 4149 4150 if (res > 0) 4151 return (1); 4152 else 4153 return (-1); 4154} 4155 4156static inline void 4157fs_perm_set_init(fs_perm_set_t *fspset) 4158{ 4159 bzero(fspset, sizeof (fs_perm_set_t)); 4160 4161 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4162 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4163 NULL, UU_DEFAULT)) == NULL) 4164 nomem(); 4165 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4166 UU_DEFAULT)) == NULL) 4167 nomem(); 4168 4169 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4170 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4171 who_perm_node_t, who_avl_node), who_perm_compare, 4172 UU_DEFAULT)) == NULL) 4173 nomem(); 4174 4175 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4176 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4177 who_perm_node_t, who_avl_node), who_perm_compare, 4178 UU_DEFAULT)) == NULL) 4179 nomem(); 4180 4181 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4182 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4183 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4184 == NULL) 4185 nomem(); 4186} 4187 4188static inline void fs_perm_fini(fs_perm_t *); 4189static inline void who_perm_fini(who_perm_t *); 4190 4191static inline void 4192fs_perm_set_fini(fs_perm_set_t *fspset) 4193{ 4194 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4195 4196 while (node != NULL) { 4197 fs_perm_node_t *next_node = 4198 uu_list_next(fspset->fsps_list, node); 4199 fs_perm_t *fsperm = &node->fspn_fsperm; 4200 fs_perm_fini(fsperm); 4201 uu_list_remove(fspset->fsps_list, node); 4202 free(node); 4203 node = next_node; 4204 } 4205 4206 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4207 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4208 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4209} 4210 4211static inline void 4212deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4213 const char *name) 4214{ 4215 deleg_perm->dp_who_type = type; 4216 deleg_perm->dp_name = name; 4217} 4218 4219static inline void 4220who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4221 zfs_deleg_who_type_t type, const char *name) 4222{ 4223 uu_avl_pool_t *pool; 4224 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4225 4226 bzero(who_perm, sizeof (who_perm_t)); 4227 4228 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4229 UU_DEFAULT)) == NULL) 4230 nomem(); 4231 4232 who_perm->who_type = type; 4233 who_perm->who_name = name; 4234 who_perm->who_fsperm = fsperm; 4235} 4236 4237static inline void 4238who_perm_fini(who_perm_t *who_perm) 4239{ 4240 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4241 4242 while (node != NULL) { 4243 deleg_perm_node_t *next_node = 4244 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4245 4246 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4247 free(node); 4248 node = next_node; 4249 } 4250 4251 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4252} 4253 4254static inline void 4255fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4256{ 4257 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4258 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4259 4260 bzero(fsperm, sizeof (fs_perm_t)); 4261 4262 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4263 == NULL) 4264 nomem(); 4265 4266 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4267 == NULL) 4268 nomem(); 4269 4270 fsperm->fsp_set = fspset; 4271 fsperm->fsp_name = fsname; 4272} 4273 4274static inline void 4275fs_perm_fini(fs_perm_t *fsperm) 4276{ 4277 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4278 while (node != NULL) { 4279 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4280 node); 4281 who_perm_t *who_perm = &node->who_perm; 4282 who_perm_fini(who_perm); 4283 uu_avl_remove(fsperm->fsp_sc_avl, node); 4284 free(node); 4285 node = next_node; 4286 } 4287 4288 node = uu_avl_first(fsperm->fsp_uge_avl); 4289 while (node != NULL) { 4290 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4291 node); 4292 who_perm_t *who_perm = &node->who_perm; 4293 who_perm_fini(who_perm); 4294 uu_avl_remove(fsperm->fsp_uge_avl, node); 4295 free(node); 4296 node = next_node; 4297 } 4298 4299 uu_avl_destroy(fsperm->fsp_sc_avl); 4300 uu_avl_destroy(fsperm->fsp_uge_avl); 4301} 4302 4303static void inline 4304set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4305 zfs_deleg_who_type_t who_type, const char *name, char locality) 4306{ 4307 uu_avl_index_t idx = 0; 4308 4309 deleg_perm_node_t *found_node = NULL; 4310 deleg_perm_t *deleg_perm = &node->dpn_perm; 4311 4312 deleg_perm_init(deleg_perm, who_type, name); 4313 4314 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4315 == NULL) 4316 uu_avl_insert(avl, node, idx); 4317 else { 4318 node = found_node; 4319 deleg_perm = &node->dpn_perm; 4320 } 4321 4322 4323 switch (locality) { 4324 case ZFS_DELEG_LOCAL: 4325 deleg_perm->dp_local = B_TRUE; 4326 break; 4327 case ZFS_DELEG_DESCENDENT: 4328 deleg_perm->dp_descend = B_TRUE; 4329 break; 4330 case ZFS_DELEG_NA: 4331 break; 4332 default: 4333 assert(B_FALSE); /* invalid locality */ 4334 } 4335} 4336 4337static inline int 4338parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4339{ 4340 nvpair_t *nvp = NULL; 4341 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4342 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4343 zfs_deleg_who_type_t who_type = who_perm->who_type; 4344 4345 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4346 const char *name = nvpair_name(nvp); 4347 data_type_t type = nvpair_type(nvp); 4348 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4349 deleg_perm_node_t *node = 4350 safe_malloc(sizeof (deleg_perm_node_t)); 4351 4352 assert(type == DATA_TYPE_BOOLEAN); 4353 4354 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4355 set_deleg_perm_node(avl, node, who_type, name, locality); 4356 } 4357 4358 return (0); 4359} 4360 4361static inline int 4362parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4363{ 4364 nvpair_t *nvp = NULL; 4365 fs_perm_set_t *fspset = fsperm->fsp_set; 4366 4367 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4368 nvlist_t *nvl2 = NULL; 4369 const char *name = nvpair_name(nvp); 4370 uu_avl_t *avl = NULL; 4371 uu_avl_pool_t *avl_pool; 4372 zfs_deleg_who_type_t perm_type = name[0]; 4373 char perm_locality = name[1]; 4374 const char *perm_name = name + 3; 4375 boolean_t is_set = B_TRUE; 4376 who_perm_t *who_perm = NULL; 4377 4378 assert('$' == name[2]); 4379 4380 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4381 return (-1); 4382 4383 switch (perm_type) { 4384 case ZFS_DELEG_CREATE: 4385 case ZFS_DELEG_CREATE_SETS: 4386 case ZFS_DELEG_NAMED_SET: 4387 case ZFS_DELEG_NAMED_SET_SETS: 4388 avl_pool = fspset->fsps_named_set_avl_pool; 4389 avl = fsperm->fsp_sc_avl; 4390 break; 4391 case ZFS_DELEG_USER: 4392 case ZFS_DELEG_USER_SETS: 4393 case ZFS_DELEG_GROUP: 4394 case ZFS_DELEG_GROUP_SETS: 4395 case ZFS_DELEG_EVERYONE: 4396 case ZFS_DELEG_EVERYONE_SETS: 4397 avl_pool = fspset->fsps_who_perm_avl_pool; 4398 avl = fsperm->fsp_uge_avl; 4399 break; 4400 } 4401 4402 if (is_set) { 4403 who_perm_node_t *found_node = NULL; 4404 who_perm_node_t *node = safe_malloc( 4405 sizeof (who_perm_node_t)); 4406 who_perm = &node->who_perm; 4407 uu_avl_index_t idx = 0; 4408 4409 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4410 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4411 4412 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4413 == NULL) { 4414 if (avl == fsperm->fsp_uge_avl) { 4415 uid_t rid = 0; 4416 struct passwd *p = NULL; 4417 struct group *g = NULL; 4418 const char *nice_name = NULL; 4419 4420 switch (perm_type) { 4421 case ZFS_DELEG_USER_SETS: 4422 case ZFS_DELEG_USER: 4423 rid = atoi(perm_name); 4424 p = getpwuid(rid); 4425 if (p) 4426 nice_name = p->pw_name; 4427 break; 4428 case ZFS_DELEG_GROUP_SETS: 4429 case ZFS_DELEG_GROUP: 4430 rid = atoi(perm_name); 4431 g = getgrgid(rid); 4432 if (g) 4433 nice_name = g->gr_name; 4434 break; 4435 } 4436 4437 if (nice_name != NULL) 4438 (void) strlcpy( 4439 node->who_perm.who_ug_name, 4440 nice_name, 256); 4441 } 4442 4443 uu_avl_insert(avl, node, idx); 4444 } else { 4445 node = found_node; 4446 who_perm = &node->who_perm; 4447 } 4448 } 4449 4450 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4451 } 4452 4453 return (0); 4454} 4455 4456static inline int 4457parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4458{ 4459 nvpair_t *nvp = NULL; 4460 uu_avl_index_t idx = 0; 4461 4462 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4463 nvlist_t *nvl2 = NULL; 4464 const char *fsname = nvpair_name(nvp); 4465 data_type_t type = nvpair_type(nvp); 4466 fs_perm_t *fsperm = NULL; 4467 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4468 if (node == NULL) 4469 nomem(); 4470 4471 fsperm = &node->fspn_fsperm; 4472 4473 assert(DATA_TYPE_NVLIST == type); 4474 4475 uu_list_node_init(node, &node->fspn_list_node, 4476 fspset->fsps_list_pool); 4477 4478 idx = uu_list_numnodes(fspset->fsps_list); 4479 fs_perm_init(fsperm, fspset, fsname); 4480 4481 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4482 return (-1); 4483 4484 (void) parse_fs_perm(fsperm, nvl2); 4485 4486 uu_list_insert(fspset->fsps_list, node, idx); 4487 } 4488 4489 return (0); 4490} 4491 4492static inline const char * 4493deleg_perm_comment(zfs_deleg_note_t note) 4494{ 4495 const char *str = ""; 4496 4497 /* subcommands */ 4498 switch (note) { 4499 /* SUBCOMMANDS */ 4500 case ZFS_DELEG_NOTE_ALLOW: 4501 str = gettext("Must also have the permission that is being" 4502 "\n\t\t\t\tallowed"); 4503 break; 4504 case ZFS_DELEG_NOTE_CLONE: 4505 str = gettext("Must also have the 'create' ability and 'mount'" 4506 "\n\t\t\t\tability in the origin file system"); 4507 break; 4508 case ZFS_DELEG_NOTE_CREATE: 4509 str = gettext("Must also have the 'mount' ability"); 4510 break; 4511 case ZFS_DELEG_NOTE_DESTROY: 4512 str = gettext("Must also have the 'mount' ability"); 4513 break; 4514 case ZFS_DELEG_NOTE_DIFF: 4515 str = gettext("Allows lookup of paths within a dataset;" 4516 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4517 "\n\t\t\t\tin order to use zfs diff"); 4518 break; 4519 case ZFS_DELEG_NOTE_HOLD: 4520 str = gettext("Allows adding a user hold to a snapshot"); 4521 break; 4522 case ZFS_DELEG_NOTE_MOUNT: 4523 str = gettext("Allows mount/umount of ZFS datasets"); 4524 break; 4525 case ZFS_DELEG_NOTE_PROMOTE: 4526 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4527 " 'promote' ability in the origin file system"); 4528 break; 4529 case ZFS_DELEG_NOTE_RECEIVE: 4530 str = gettext("Must also have the 'mount' and 'create'" 4531 " ability"); 4532 break; 4533 case ZFS_DELEG_NOTE_RELEASE: 4534 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4535 "might destroy the snapshot"); 4536 break; 4537 case ZFS_DELEG_NOTE_RENAME: 4538 str = gettext("Must also have the 'mount' and 'create'" 4539 "\n\t\t\t\tability in the new parent"); 4540 break; 4541 case ZFS_DELEG_NOTE_ROLLBACK: 4542 str = gettext(""); 4543 break; 4544 case ZFS_DELEG_NOTE_SEND: 4545 str = gettext(""); 4546 break; 4547 case ZFS_DELEG_NOTE_SHARE: 4548 str = gettext("Allows sharing file systems over NFS or SMB" 4549 "\n\t\t\t\tprotocols"); 4550 break; 4551 case ZFS_DELEG_NOTE_SNAPSHOT: 4552 str = gettext(""); 4553 break; 4554/* 4555 * case ZFS_DELEG_NOTE_VSCAN: 4556 * str = gettext(""); 4557 * break; 4558 */ 4559 /* OTHER */ 4560 case ZFS_DELEG_NOTE_GROUPQUOTA: 4561 str = gettext("Allows accessing any groupquota@... property"); 4562 break; 4563 case ZFS_DELEG_NOTE_GROUPUSED: 4564 str = gettext("Allows reading any groupused@... property"); 4565 break; 4566 case ZFS_DELEG_NOTE_USERPROP: 4567 str = gettext("Allows changing any user property"); 4568 break; 4569 case ZFS_DELEG_NOTE_USERQUOTA: 4570 str = gettext("Allows accessing any userquota@... property"); 4571 break; 4572 case ZFS_DELEG_NOTE_USERUSED: 4573 str = gettext("Allows reading any userused@... property"); 4574 break; 4575 /* other */ 4576 default: 4577 str = ""; 4578 } 4579 4580 return (str); 4581} 4582 4583struct allow_opts { 4584 boolean_t local; 4585 boolean_t descend; 4586 boolean_t user; 4587 boolean_t group; 4588 boolean_t everyone; 4589 boolean_t create; 4590 boolean_t set; 4591 boolean_t recursive; /* unallow only */ 4592 boolean_t prt_usage; 4593 4594 boolean_t prt_perms; 4595 char *who; 4596 char *perms; 4597 const char *dataset; 4598}; 4599 4600static inline int 4601prop_cmp(const void *a, const void *b) 4602{ 4603 const char *str1 = *(const char **)a; 4604 const char *str2 = *(const char **)b; 4605 return (strcmp(str1, str2)); 4606} 4607 4608static void 4609allow_usage(boolean_t un, boolean_t requested, const char *msg) 4610{ 4611 const char *opt_desc[] = { 4612 "-h", gettext("show this help message and exit"), 4613 "-l", gettext("set permission locally"), 4614 "-d", gettext("set permission for descents"), 4615 "-u", gettext("set permission for user"), 4616 "-g", gettext("set permission for group"), 4617 "-e", gettext("set permission for everyone"), 4618 "-c", gettext("set create time permission"), 4619 "-s", gettext("define permission set"), 4620 /* unallow only */ 4621 "-r", gettext("remove permissions recursively"), 4622 }; 4623 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4624 size_t allow_size = unallow_size - 2; 4625 const char *props[ZFS_NUM_PROPS]; 4626 int i; 4627 size_t count = 0; 4628 FILE *fp = requested ? stdout : stderr; 4629 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4630 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4631 4632 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4633 HELP_ALLOW)); 4634 (void) fprintf(fp, gettext("Options:\n")); 4635 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4636 const char *opt = opt_desc[i++]; 4637 const char *optdsc = opt_desc[i]; 4638 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4639 } 4640 4641 (void) fprintf(fp, gettext("\nThe following permissions are " 4642 "supported:\n\n")); 4643 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4644 gettext("NOTES")); 4645 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4646 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4647 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4648 const char *perm_type = deleg_perm_type(perm_note); 4649 const char *perm_comment = deleg_perm_comment(perm_note); 4650 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4651 } 4652 4653 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4654 zprop_desc_t *pd = &pdtbl[i]; 4655 if (pd->pd_visible != B_TRUE) 4656 continue; 4657 4658 if (pd->pd_attr == PROP_READONLY) 4659 continue; 4660 4661 props[count++] = pd->pd_name; 4662 } 4663 props[count] = NULL; 4664 4665 qsort(props, count, sizeof (char *), prop_cmp); 4666 4667 for (i = 0; i < count; i++) 4668 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4669 4670 if (msg != NULL) 4671 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4672 4673 exit(requested ? 0 : 2); 4674} 4675 4676static inline const char * 4677munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4678 char **permsp) 4679{ 4680 if (un && argc == expected_argc - 1) 4681 *permsp = NULL; 4682 else if (argc == expected_argc) 4683 *permsp = argv[argc - 2]; 4684 else 4685 allow_usage(un, B_FALSE, 4686 gettext("wrong number of parameters\n")); 4687 4688 return (argv[argc - 1]); 4689} 4690 4691static void 4692parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4693{ 4694 int uge_sum = opts->user + opts->group + opts->everyone; 4695 int csuge_sum = opts->create + opts->set + uge_sum; 4696 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4697 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4698 4699 if (uge_sum > 1) 4700 allow_usage(un, B_FALSE, 4701 gettext("-u, -g, and -e are mutually exclusive\n")); 4702 4703 if (opts->prt_usage) 4704 if (argc == 0 && all_sum == 0) 4705 allow_usage(un, B_TRUE, NULL); 4706 else 4707 usage(B_FALSE); 4708 4709 if (opts->set) { 4710 if (csuge_sum > 1) 4711 allow_usage(un, B_FALSE, 4712 gettext("invalid options combined with -s\n")); 4713 4714 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4715 if (argv[0][0] != '@') 4716 allow_usage(un, B_FALSE, 4717 gettext("invalid set name: missing '@' prefix\n")); 4718 opts->who = argv[0]; 4719 } else if (opts->create) { 4720 if (ldcsuge_sum > 1) 4721 allow_usage(un, B_FALSE, 4722 gettext("invalid options combined with -c\n")); 4723 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4724 } else if (opts->everyone) { 4725 if (csuge_sum > 1) 4726 allow_usage(un, B_FALSE, 4727 gettext("invalid options combined with -e\n")); 4728 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4729 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4730 == 0) { 4731 opts->everyone = B_TRUE; 4732 argc--; 4733 argv++; 4734 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4735 } else if (argc == 1 && !un) { 4736 opts->prt_perms = B_TRUE; 4737 opts->dataset = argv[argc-1]; 4738 } else { 4739 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4740 opts->who = argv[0]; 4741 } 4742 4743 if (!opts->local && !opts->descend) { 4744 opts->local = B_TRUE; 4745 opts->descend = B_TRUE; 4746 } 4747} 4748 4749static void 4750store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4751 const char *who, char *perms, nvlist_t *top_nvl) 4752{ 4753 int i; 4754 char ld[2] = { '\0', '\0' }; 4755 char who_buf[ZFS_MAXNAMELEN+32]; 4756 char base_type; 4757 char set_type; 4758 nvlist_t *base_nvl = NULL; 4759 nvlist_t *set_nvl = NULL; 4760 nvlist_t *nvl; 4761 4762 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4763 nomem(); 4764 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4765 nomem(); 4766 4767 switch (type) { 4768 case ZFS_DELEG_NAMED_SET_SETS: 4769 case ZFS_DELEG_NAMED_SET: 4770 set_type = ZFS_DELEG_NAMED_SET_SETS; 4771 base_type = ZFS_DELEG_NAMED_SET; 4772 ld[0] = ZFS_DELEG_NA; 4773 break; 4774 case ZFS_DELEG_CREATE_SETS: 4775 case ZFS_DELEG_CREATE: 4776 set_type = ZFS_DELEG_CREATE_SETS; 4777 base_type = ZFS_DELEG_CREATE; 4778 ld[0] = ZFS_DELEG_NA; 4779 break; 4780 case ZFS_DELEG_USER_SETS: 4781 case ZFS_DELEG_USER: 4782 set_type = ZFS_DELEG_USER_SETS; 4783 base_type = ZFS_DELEG_USER; 4784 if (local) 4785 ld[0] = ZFS_DELEG_LOCAL; 4786 if (descend) 4787 ld[1] = ZFS_DELEG_DESCENDENT; 4788 break; 4789 case ZFS_DELEG_GROUP_SETS: 4790 case ZFS_DELEG_GROUP: 4791 set_type = ZFS_DELEG_GROUP_SETS; 4792 base_type = ZFS_DELEG_GROUP; 4793 if (local) 4794 ld[0] = ZFS_DELEG_LOCAL; 4795 if (descend) 4796 ld[1] = ZFS_DELEG_DESCENDENT; 4797 break; 4798 case ZFS_DELEG_EVERYONE_SETS: 4799 case ZFS_DELEG_EVERYONE: 4800 set_type = ZFS_DELEG_EVERYONE_SETS; 4801 base_type = ZFS_DELEG_EVERYONE; 4802 if (local) 4803 ld[0] = ZFS_DELEG_LOCAL; 4804 if (descend) 4805 ld[1] = ZFS_DELEG_DESCENDENT; 4806 } 4807 4808 if (perms != NULL) { 4809 char *curr = perms; 4810 char *end = curr + strlen(perms); 4811 4812 while (curr < end) { 4813 char *delim = strchr(curr, ','); 4814 if (delim == NULL) 4815 delim = end; 4816 else 4817 *delim = '\0'; 4818 4819 if (curr[0] == '@') 4820 nvl = set_nvl; 4821 else 4822 nvl = base_nvl; 4823 4824 (void) nvlist_add_boolean(nvl, curr); 4825 if (delim != end) 4826 *delim = ','; 4827 curr = delim + 1; 4828 } 4829 4830 for (i = 0; i < 2; i++) { 4831 char locality = ld[i]; 4832 if (locality == 0) 4833 continue; 4834 4835 if (!nvlist_empty(base_nvl)) { 4836 if (who != NULL) 4837 (void) snprintf(who_buf, 4838 sizeof (who_buf), "%c%c$%s", 4839 base_type, locality, who); 4840 else 4841 (void) snprintf(who_buf, 4842 sizeof (who_buf), "%c%c$", 4843 base_type, locality); 4844 4845 (void) nvlist_add_nvlist(top_nvl, who_buf, 4846 base_nvl); 4847 } 4848 4849 4850 if (!nvlist_empty(set_nvl)) { 4851 if (who != NULL) 4852 (void) snprintf(who_buf, 4853 sizeof (who_buf), "%c%c$%s", 4854 set_type, locality, who); 4855 else 4856 (void) snprintf(who_buf, 4857 sizeof (who_buf), "%c%c$", 4858 set_type, locality); 4859 4860 (void) nvlist_add_nvlist(top_nvl, who_buf, 4861 set_nvl); 4862 } 4863 } 4864 } else { 4865 for (i = 0; i < 2; i++) { 4866 char locality = ld[i]; 4867 if (locality == 0) 4868 continue; 4869 4870 if (who != NULL) 4871 (void) snprintf(who_buf, sizeof (who_buf), 4872 "%c%c$%s", base_type, locality, who); 4873 else 4874 (void) snprintf(who_buf, sizeof (who_buf), 4875 "%c%c$", base_type, locality); 4876 (void) nvlist_add_boolean(top_nvl, who_buf); 4877 4878 if (who != NULL) 4879 (void) snprintf(who_buf, sizeof (who_buf), 4880 "%c%c$%s", set_type, locality, who); 4881 else 4882 (void) snprintf(who_buf, sizeof (who_buf), 4883 "%c%c$", set_type, locality); 4884 (void) nvlist_add_boolean(top_nvl, who_buf); 4885 } 4886 } 4887} 4888 4889static int 4890construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4891{ 4892 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4893 nomem(); 4894 4895 if (opts->set) { 4896 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4897 opts->descend, opts->who, opts->perms, *nvlp); 4898 } else if (opts->create) { 4899 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4900 opts->descend, NULL, opts->perms, *nvlp); 4901 } else if (opts->everyone) { 4902 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4903 opts->descend, NULL, opts->perms, *nvlp); 4904 } else { 4905 char *curr = opts->who; 4906 char *end = curr + strlen(curr); 4907 4908 while (curr < end) { 4909 const char *who; 4910 zfs_deleg_who_type_t who_type; 4911 char *endch; 4912 char *delim = strchr(curr, ','); 4913 char errbuf[256]; 4914 char id[64]; 4915 struct passwd *p = NULL; 4916 struct group *g = NULL; 4917 4918 uid_t rid; 4919 if (delim == NULL) 4920 delim = end; 4921 else 4922 *delim = '\0'; 4923 4924 rid = (uid_t)strtol(curr, &endch, 0); 4925 if (opts->user) { 4926 who_type = ZFS_DELEG_USER; 4927 if (*endch != '\0') 4928 p = getpwnam(curr); 4929 else 4930 p = getpwuid(rid); 4931 4932 if (p != NULL) 4933 rid = p->pw_uid; 4934 else { 4935 (void) snprintf(errbuf, 256, gettext( 4936 "invalid user %s"), curr); 4937 allow_usage(un, B_TRUE, errbuf); 4938 } 4939 } else if (opts->group) { 4940 who_type = ZFS_DELEG_GROUP; 4941 if (*endch != '\0') 4942 g = getgrnam(curr); 4943 else 4944 g = getgrgid(rid); 4945 4946 if (g != NULL) 4947 rid = g->gr_gid; 4948 else { 4949 (void) snprintf(errbuf, 256, gettext( 4950 "invalid group %s"), curr); 4951 allow_usage(un, B_TRUE, errbuf); 4952 } 4953 } else { 4954 if (*endch != '\0') { 4955 p = getpwnam(curr); 4956 } else { 4957 p = getpwuid(rid); 4958 } 4959 4960 if (p == NULL) 4961 if (*endch != '\0') { 4962 g = getgrnam(curr); 4963 } else { 4964 g = getgrgid(rid); 4965 } 4966 4967 if (p != NULL) { 4968 who_type = ZFS_DELEG_USER; 4969 rid = p->pw_uid; 4970 } else if (g != NULL) { 4971 who_type = ZFS_DELEG_GROUP; 4972 rid = g->gr_gid; 4973 } else { 4974 (void) snprintf(errbuf, 256, gettext( 4975 "invalid user/group %s"), curr); 4976 allow_usage(un, B_TRUE, errbuf); 4977 } 4978 } 4979 4980 (void) sprintf(id, "%u", rid); 4981 who = id; 4982 4983 store_allow_perm(who_type, opts->local, 4984 opts->descend, who, opts->perms, *nvlp); 4985 curr = delim + 1; 4986 } 4987 } 4988 4989 return (0); 4990} 4991 4992static void 4993print_set_creat_perms(uu_avl_t *who_avl) 4994{ 4995 const char *sc_title[] = { 4996 gettext("Permission sets:\n"), 4997 gettext("Create time permissions:\n"), 4998 NULL 4999 }; 5000 const char **title_ptr = sc_title; 5001 who_perm_node_t *who_node = NULL; 5002 int prev_weight = -1; 5003 5004 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5005 who_node = uu_avl_next(who_avl, who_node)) { 5006 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5007 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5008 const char *who_name = who_node->who_perm.who_name; 5009 int weight = who_type2weight(who_type); 5010 boolean_t first = B_TRUE; 5011 deleg_perm_node_t *deleg_node; 5012 5013 if (prev_weight != weight) { 5014 (void) printf(*title_ptr++); 5015 prev_weight = weight; 5016 } 5017 5018 if (who_name == NULL || strnlen(who_name, 1) == 0) 5019 (void) printf("\t"); 5020 else 5021 (void) printf("\t%s ", who_name); 5022 5023 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5024 deleg_node = uu_avl_next(avl, deleg_node)) { 5025 if (first) { 5026 (void) printf("%s", 5027 deleg_node->dpn_perm.dp_name); 5028 first = B_FALSE; 5029 } else 5030 (void) printf(",%s", 5031 deleg_node->dpn_perm.dp_name); 5032 } 5033 5034 (void) printf("\n"); 5035 } 5036} 5037 5038static void inline 5039print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5040 const char *title) 5041{ 5042 who_perm_node_t *who_node = NULL; 5043 boolean_t prt_title = B_TRUE; 5044 uu_avl_walk_t *walk; 5045 5046 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5047 nomem(); 5048 5049 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5050 const char *who_name = who_node->who_perm.who_name; 5051 const char *nice_who_name = who_node->who_perm.who_ug_name; 5052 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5053 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5054 char delim = ' '; 5055 deleg_perm_node_t *deleg_node; 5056 boolean_t prt_who = B_TRUE; 5057 5058 for (deleg_node = uu_avl_first(avl); 5059 deleg_node != NULL; 5060 deleg_node = uu_avl_next(avl, deleg_node)) { 5061 if (local != deleg_node->dpn_perm.dp_local || 5062 descend != deleg_node->dpn_perm.dp_descend) 5063 continue; 5064 5065 if (prt_who) { 5066 const char *who = NULL; 5067 if (prt_title) { 5068 prt_title = B_FALSE; 5069 (void) printf(title); 5070 } 5071 5072 switch (who_type) { 5073 case ZFS_DELEG_USER_SETS: 5074 case ZFS_DELEG_USER: 5075 who = gettext("user"); 5076 if (nice_who_name) 5077 who_name = nice_who_name; 5078 break; 5079 case ZFS_DELEG_GROUP_SETS: 5080 case ZFS_DELEG_GROUP: 5081 who = gettext("group"); 5082 if (nice_who_name) 5083 who_name = nice_who_name; 5084 break; 5085 case ZFS_DELEG_EVERYONE_SETS: 5086 case ZFS_DELEG_EVERYONE: 5087 who = gettext("everyone"); 5088 who_name = NULL; 5089 } 5090 5091 prt_who = B_FALSE; 5092 if (who_name == NULL) 5093 (void) printf("\t%s", who); 5094 else 5095 (void) printf("\t%s %s", who, who_name); 5096 } 5097 5098 (void) printf("%c%s", delim, 5099 deleg_node->dpn_perm.dp_name); 5100 delim = ','; 5101 } 5102 5103 if (!prt_who) 5104 (void) printf("\n"); 5105 } 5106 5107 uu_avl_walk_end(walk); 5108} 5109 5110static void 5111print_fs_perms(fs_perm_set_t *fspset) 5112{ 5113 fs_perm_node_t *node = NULL; 5114 char buf[ZFS_MAXNAMELEN+32]; 5115 const char *dsname = buf; 5116 5117 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5118 node = uu_list_next(fspset->fsps_list, node)) { 5119 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5120 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5121 int left = 0; 5122 5123 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5124 gettext("---- Permissions on %s "), 5125 node->fspn_fsperm.fsp_name); 5126 (void) printf(dsname); 5127 left = 70 - strlen(buf); 5128 while (left-- > 0) 5129 (void) printf("-"); 5130 (void) printf("\n"); 5131 5132 print_set_creat_perms(sc_avl); 5133 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5134 gettext("Local permissions:\n")); 5135 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5136 gettext("Descendent permissions:\n")); 5137 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5138 gettext("Local+Descendent permissions:\n")); 5139 } 5140} 5141 5142static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5143 5144struct deleg_perms { 5145 boolean_t un; 5146 nvlist_t *nvl; 5147}; 5148 5149static int 5150set_deleg_perms(zfs_handle_t *zhp, void *data) 5151{ 5152 struct deleg_perms *perms = (struct deleg_perms *)data; 5153 zfs_type_t zfs_type = zfs_get_type(zhp); 5154 5155 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5156 return (0); 5157 5158 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5159} 5160 5161static int 5162zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5163{ 5164 zfs_handle_t *zhp; 5165 nvlist_t *perm_nvl = NULL; 5166 nvlist_t *update_perm_nvl = NULL; 5167 int error = 1; 5168 int c; 5169 struct allow_opts opts = { 0 }; 5170 5171 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5172 5173 /* check opts */ 5174 while ((c = getopt(argc, argv, optstr)) != -1) { 5175 switch (c) { 5176 case 'l': 5177 opts.local = B_TRUE; 5178 break; 5179 case 'd': 5180 opts.descend = B_TRUE; 5181 break; 5182 case 'u': 5183 opts.user = B_TRUE; 5184 break; 5185 case 'g': 5186 opts.group = B_TRUE; 5187 break; 5188 case 'e': 5189 opts.everyone = B_TRUE; 5190 break; 5191 case 's': 5192 opts.set = B_TRUE; 5193 break; 5194 case 'c': 5195 opts.create = B_TRUE; 5196 break; 5197 case 'r': 5198 opts.recursive = B_TRUE; 5199 break; 5200 case ':': 5201 (void) fprintf(stderr, gettext("missing argument for " 5202 "'%c' option\n"), optopt); 5203 usage(B_FALSE); 5204 break; 5205 case 'h': 5206 opts.prt_usage = B_TRUE; 5207 break; 5208 case '?': 5209 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5210 optopt); 5211 usage(B_FALSE); 5212 } 5213 } 5214 5215 argc -= optind; 5216 argv += optind; 5217 5218 /* check arguments */ 5219 parse_allow_args(argc, argv, un, &opts); 5220 5221 /* try to open the dataset */ 5222 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5223 ZFS_TYPE_VOLUME)) == NULL) { 5224 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5225 opts.dataset); 5226 return (-1); 5227 } 5228 5229 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5230 goto cleanup2; 5231 5232 fs_perm_set_init(&fs_perm_set); 5233 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5234 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5235 goto cleanup1; 5236 } 5237 5238 if (opts.prt_perms) 5239 print_fs_perms(&fs_perm_set); 5240 else { 5241 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5242 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5243 goto cleanup0; 5244 5245 if (un && opts.recursive) { 5246 struct deleg_perms data = { un, update_perm_nvl }; 5247 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5248 &data) != 0) 5249 goto cleanup0; 5250 } 5251 } 5252 5253 error = 0; 5254 5255cleanup0: 5256 nvlist_free(perm_nvl); 5257 if (update_perm_nvl != NULL) 5258 nvlist_free(update_perm_nvl); 5259cleanup1: 5260 fs_perm_set_fini(&fs_perm_set); 5261cleanup2: 5262 zfs_close(zhp); 5263 5264 return (error); 5265} 5266 5267static int 5268zfs_do_allow(int argc, char **argv) 5269{ 5270 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5271} 5272 5273static int 5274zfs_do_unallow(int argc, char **argv) 5275{ 5276 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5277} 5278 5279static int 5280zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5281{ 5282 int errors = 0; 5283 int i; 5284 const char *tag; 5285 boolean_t recursive = B_FALSE; 5286 const char *opts = holding ? "rt" : "r"; 5287 int c; 5288 5289 /* check options */ 5290 while ((c = getopt(argc, argv, opts)) != -1) { 5291 switch (c) { 5292 case 'r': 5293 recursive = B_TRUE; 5294 break; 5295 case '?': 5296 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5297 optopt); 5298 usage(B_FALSE); 5299 } 5300 } 5301 5302 argc -= optind; 5303 argv += optind; 5304 5305 /* check number of arguments */ 5306 if (argc < 2) 5307 usage(B_FALSE); 5308 5309 tag = argv[0]; 5310 --argc; 5311 ++argv; 5312 5313 if (holding && tag[0] == '.') { 5314 /* tags starting with '.' are reserved for libzfs */ 5315 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5316 usage(B_FALSE); 5317 } 5318 5319 for (i = 0; i < argc; ++i) { 5320 zfs_handle_t *zhp; 5321 char parent[ZFS_MAXNAMELEN]; 5322 const char *delim; 5323 char *path = argv[i]; 5324 5325 delim = strchr(path, '@'); 5326 if (delim == NULL) { 5327 (void) fprintf(stderr, 5328 gettext("'%s' is not a snapshot\n"), path); 5329 ++errors; 5330 continue; 5331 } 5332 (void) strncpy(parent, path, delim - path); 5333 parent[delim - path] = '\0'; 5334 5335 zhp = zfs_open(g_zfs, parent, 5336 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5337 if (zhp == NULL) { 5338 ++errors; 5339 continue; 5340 } 5341 if (holding) { 5342 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5343 ++errors; 5344 } else { 5345 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5346 ++errors; 5347 } 5348 zfs_close(zhp); 5349 } 5350 5351 return (errors != 0); 5352} 5353 5354/* 5355 * zfs hold [-r] [-t] <tag> <snap> ... 5356 * 5357 * -r Recursively hold 5358 * 5359 * Apply a user-hold with the given tag to the list of snapshots. 5360 */ 5361static int 5362zfs_do_hold(int argc, char **argv) 5363{ 5364 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5365} 5366 5367/* 5368 * zfs release [-r] <tag> <snap> ... 5369 * 5370 * -r Recursively release 5371 * 5372 * Release a user-hold with the given tag from the list of snapshots. 5373 */ 5374static int 5375zfs_do_release(int argc, char **argv) 5376{ 5377 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5378} 5379 5380typedef struct holds_cbdata { 5381 boolean_t cb_recursive; 5382 const char *cb_snapname; 5383 nvlist_t **cb_nvlp; 5384 size_t cb_max_namelen; 5385 size_t cb_max_taglen; 5386} holds_cbdata_t; 5387 5388#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5389#define DATETIME_BUF_LEN (32) 5390/* 5391 * 5392 */ 5393static void 5394print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5395{ 5396 int i; 5397 nvpair_t *nvp = NULL; 5398 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5399 const char *col; 5400 5401 if (!scripted) { 5402 for (i = 0; i < 3; i++) { 5403 col = gettext(hdr_cols[i]); 5404 if (i < 2) 5405 (void) printf("%-*s ", i ? tagwidth : nwidth, 5406 col); 5407 else 5408 (void) printf("%s\n", col); 5409 } 5410 } 5411 5412 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5413 char *zname = nvpair_name(nvp); 5414 nvlist_t *nvl2; 5415 nvpair_t *nvp2 = NULL; 5416 (void) nvpair_value_nvlist(nvp, &nvl2); 5417 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5418 char tsbuf[DATETIME_BUF_LEN]; 5419 char *tagname = nvpair_name(nvp2); 5420 uint64_t val = 0; 5421 time_t time; 5422 struct tm t; 5423 char sep = scripted ? '\t' : ' '; 5424 size_t sepnum = scripted ? 1 : 2; 5425 5426 (void) nvpair_value_uint64(nvp2, &val); 5427 time = (time_t)val; 5428 (void) localtime_r(&time, &t); 5429 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5430 gettext(STRFTIME_FMT_STR), &t); 5431 5432 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5433 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5434 } 5435 } 5436} 5437 5438/* 5439 * Generic callback function to list a dataset or snapshot. 5440 */ 5441static int 5442holds_callback(zfs_handle_t *zhp, void *data) 5443{ 5444 holds_cbdata_t *cbp = data; 5445 nvlist_t *top_nvl = *cbp->cb_nvlp; 5446 nvlist_t *nvl = NULL; 5447 nvpair_t *nvp = NULL; 5448 const char *zname = zfs_get_name(zhp); 5449 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5450 5451 if (cbp->cb_recursive) { 5452 const char *snapname; 5453 char *delim = strchr(zname, '@'); 5454 if (delim == NULL) 5455 return (0); 5456 5457 snapname = delim + 1; 5458 if (strcmp(cbp->cb_snapname, snapname)) 5459 return (0); 5460 } 5461 5462 if (zfs_get_holds(zhp, &nvl) != 0) 5463 return (-1); 5464 5465 if (znamelen > cbp->cb_max_namelen) 5466 cbp->cb_max_namelen = znamelen; 5467 5468 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5469 const char *tag = nvpair_name(nvp); 5470 size_t taglen = strnlen(tag, MAXNAMELEN); 5471 if (taglen > cbp->cb_max_taglen) 5472 cbp->cb_max_taglen = taglen; 5473 } 5474 5475 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5476} 5477 5478/* 5479 * zfs holds [-r] <snap> ... 5480 * 5481 * -r Recursively hold 5482 */ 5483static int 5484zfs_do_holds(int argc, char **argv) 5485{ 5486 int errors = 0; 5487 int c; 5488 int i; 5489 boolean_t scripted = B_FALSE; 5490 boolean_t recursive = B_FALSE; 5491 const char *opts = "rH"; 5492 nvlist_t *nvl; 5493 5494 int types = ZFS_TYPE_SNAPSHOT; 5495 holds_cbdata_t cb = { 0 }; 5496 5497 int limit = 0; 5498 int ret = 0; 5499 int flags = 0; 5500 5501 /* check options */ 5502 while ((c = getopt(argc, argv, opts)) != -1) { 5503 switch (c) { 5504 case 'r': 5505 recursive = B_TRUE; 5506 break; 5507 case 'H': 5508 scripted = B_TRUE; 5509 break; 5510 case '?': 5511 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5512 optopt); 5513 usage(B_FALSE); 5514 } 5515 } 5516 5517 if (recursive) { 5518 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5519 flags |= ZFS_ITER_RECURSE; 5520 } 5521 5522 argc -= optind; 5523 argv += optind; 5524 5525 /* check number of arguments */ 5526 if (argc < 1) 5527 usage(B_FALSE); 5528 5529 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5530 nomem(); 5531 5532 for (i = 0; i < argc; ++i) { 5533 char *snapshot = argv[i]; 5534 const char *delim; 5535 const char *snapname; 5536 5537 delim = strchr(snapshot, '@'); 5538 if (delim == NULL) { 5539 (void) fprintf(stderr, 5540 gettext("'%s' is not a snapshot\n"), snapshot); 5541 ++errors; 5542 continue; 5543 } 5544 snapname = delim + 1; 5545 if (recursive) 5546 snapshot[delim - snapshot] = '\0'; 5547 5548 cb.cb_recursive = recursive; 5549 cb.cb_snapname = snapname; 5550 cb.cb_nvlp = &nvl; 5551 5552 /* 5553 * 1. collect holds data, set format options 5554 */ 5555 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5556 holds_callback, &cb); 5557 if (ret != 0) 5558 ++errors; 5559 } 5560 5561 /* 5562 * 2. print holds data 5563 */ 5564 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5565 5566 if (nvlist_empty(nvl)) 5567 (void) printf(gettext("no datasets available\n")); 5568 5569 nvlist_free(nvl); 5570 5571 return (0 != errors); 5572} 5573 5574#define CHECK_SPINNER 30 5575#define SPINNER_TIME 3 /* seconds */ 5576#define MOUNT_TIME 5 /* seconds */ 5577 5578static int 5579get_one_dataset(zfs_handle_t *zhp, void *data) 5580{ 5581 static char *spin[] = { "-", "\\", "|", "/" }; 5582 static int spinval = 0; 5583 static int spincheck = 0; 5584 static time_t last_spin_time = (time_t)0; 5585 get_all_cb_t *cbp = data; 5586 zfs_type_t type = zfs_get_type(zhp); 5587 5588 if (cbp->cb_verbose) { 5589 if (--spincheck < 0) { 5590 time_t now = time(NULL); 5591 if (last_spin_time + SPINNER_TIME < now) { 5592 update_progress(spin[spinval++ % 4]); 5593 last_spin_time = now; 5594 } 5595 spincheck = CHECK_SPINNER; 5596 } 5597 } 5598 5599 /* 5600 * Interate over any nested datasets. 5601 */ 5602 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5603 zfs_close(zhp); 5604 return (1); 5605 } 5606 5607 /* 5608 * Skip any datasets whose type does not match. 5609 */ 5610 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5611 zfs_close(zhp); 5612 return (0); 5613 } 5614 libzfs_add_handle(cbp, zhp); 5615 assert(cbp->cb_used <= cbp->cb_alloc); 5616 5617 return (0); 5618} 5619 5620static void 5621get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5622{ 5623 get_all_cb_t cb = { 0 }; 5624 cb.cb_verbose = verbose; 5625 cb.cb_getone = get_one_dataset; 5626 5627 if (verbose) 5628 set_progress_header(gettext("Reading ZFS config")); 5629 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5630 5631 *dslist = cb.cb_handles; 5632 *count = cb.cb_used; 5633 5634 if (verbose) 5635 finish_progress(gettext("done.")); 5636} 5637 5638/* 5639 * Generic callback for sharing or mounting filesystems. Because the code is so 5640 * similar, we have a common function with an extra parameter to determine which 5641 * mode we are using. 5642 */ 5643#define OP_SHARE 0x1 5644#define OP_MOUNT 0x2 5645 5646/* 5647 * Share or mount a dataset. 5648 */ 5649static int 5650share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5651 boolean_t explicit, const char *options) 5652{ 5653 char mountpoint[ZFS_MAXPROPLEN]; 5654 char shareopts[ZFS_MAXPROPLEN]; 5655 char smbshareopts[ZFS_MAXPROPLEN]; 5656 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5657 struct mnttab mnt; 5658 uint64_t zoned, canmount; 5659 boolean_t shared_nfs, shared_smb; 5660 5661 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5662 5663 /* 5664 * Check to make sure we can mount/share this dataset. If we 5665 * are in the global zone and the filesystem is exported to a 5666 * local zone, or if we are in a local zone and the 5667 * filesystem is not exported, then it is an error. 5668 */ 5669 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5670 5671 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5672 if (!explicit) 5673 return (0); 5674 5675 (void) fprintf(stderr, gettext("cannot %s '%s': " 5676 "dataset is exported to a local zone\n"), cmdname, 5677 zfs_get_name(zhp)); 5678 return (1); 5679 5680 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5681 if (!explicit) 5682 return (0); 5683 5684 (void) fprintf(stderr, gettext("cannot %s '%s': " 5685 "permission denied\n"), cmdname, 5686 zfs_get_name(zhp)); 5687 return (1); 5688 } 5689 5690 /* 5691 * Ignore any filesystems which don't apply to us. This 5692 * includes those with a legacy mountpoint, or those with 5693 * legacy share options. 5694 */ 5695 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5696 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5697 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5698 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5699 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5700 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5701 5702 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5703 strcmp(smbshareopts, "off") == 0) { 5704 if (!explicit) 5705 return (0); 5706 5707 (void) fprintf(stderr, gettext("cannot share '%s': " 5708 "legacy share\n"), zfs_get_name(zhp)); 5709 (void) fprintf(stderr, gettext("to " 5710 "share this filesystem set " 5711 "sharenfs property on\n")); 5712 return (1); 5713 } 5714 5715 /* 5716 * We cannot share or mount legacy filesystems. If the 5717 * shareopts is non-legacy but the mountpoint is legacy, we 5718 * treat it as a legacy share. 5719 */ 5720 if (strcmp(mountpoint, "legacy") == 0) { 5721 if (!explicit) 5722 return (0); 5723 5724 (void) fprintf(stderr, gettext("cannot %s '%s': " 5725 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5726 (void) fprintf(stderr, gettext("use %s(8) to " 5727 "%s this filesystem\n"), cmdname, cmdname); 5728 return (1); 5729 } 5730 5731 if (strcmp(mountpoint, "none") == 0) { 5732 if (!explicit) 5733 return (0); 5734 5735 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5736 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5737 return (1); 5738 } 5739 5740 /* 5741 * canmount explicit outcome 5742 * on no pass through 5743 * on yes pass through 5744 * off no return 0 5745 * off yes display error, return 1 5746 * noauto no return 0 5747 * noauto yes pass through 5748 */ 5749 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5750 if (canmount == ZFS_CANMOUNT_OFF) { 5751 if (!explicit) 5752 return (0); 5753 5754 (void) fprintf(stderr, gettext("cannot %s '%s': " 5755 "'canmount' property is set to 'off'\n"), cmdname, 5756 zfs_get_name(zhp)); 5757 return (1); 5758 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5759 return (0); 5760 } 5761 5762 /* 5763 * At this point, we have verified that the mountpoint and/or 5764 * shareopts are appropriate for auto management. If the 5765 * filesystem is already mounted or shared, return (failing 5766 * for explicit requests); otherwise mount or share the 5767 * filesystem. 5768 */ 5769 switch (op) { 5770 case OP_SHARE: 5771 5772 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5773 shared_smb = zfs_is_shared_smb(zhp, NULL); 5774 5775 if (shared_nfs && shared_smb || 5776 (shared_nfs && strcmp(shareopts, "on") == 0 && 5777 strcmp(smbshareopts, "off") == 0) || 5778 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5779 strcmp(shareopts, "off") == 0)) { 5780 if (!explicit) 5781 return (0); 5782 5783 (void) fprintf(stderr, gettext("cannot share " 5784 "'%s': filesystem already shared\n"), 5785 zfs_get_name(zhp)); 5786 return (1); 5787 } 5788 5789 if (!zfs_is_mounted(zhp, NULL) && 5790 zfs_mount(zhp, NULL, 0) != 0) 5791 return (1); 5792 5793 if (protocol == NULL) { 5794 if (zfs_shareall(zhp) != 0) 5795 return (1); 5796 } else if (strcmp(protocol, "nfs") == 0) { 5797 if (zfs_share_nfs(zhp)) 5798 return (1); 5799 } else if (strcmp(protocol, "smb") == 0) { 5800 if (zfs_share_smb(zhp)) 5801 return (1); 5802 } else { 5803 (void) fprintf(stderr, gettext("cannot share " 5804 "'%s': invalid share type '%s' " 5805 "specified\n"), 5806 zfs_get_name(zhp), protocol); 5807 return (1); 5808 } 5809 5810 break; 5811 5812 case OP_MOUNT: 5813 if (options == NULL) 5814 mnt.mnt_mntopts = ""; 5815 else 5816 mnt.mnt_mntopts = (char *)options; 5817 5818 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5819 zfs_is_mounted(zhp, NULL)) { 5820 if (!explicit) 5821 return (0); 5822 5823 (void) fprintf(stderr, gettext("cannot mount " 5824 "'%s': filesystem already mounted\n"), 5825 zfs_get_name(zhp)); 5826 return (1); 5827 } 5828 5829 if (zfs_mount(zhp, options, flags) != 0) 5830 return (1); 5831 break; 5832 } 5833 5834 return (0); 5835} 5836 5837/* 5838 * Reports progress in the form "(current/total)". Not thread-safe. 5839 */ 5840static void 5841report_mount_progress(int current, int total) 5842{ 5843 static time_t last_progress_time = 0; 5844 time_t now = time(NULL); 5845 char info[32]; 5846 5847 /* report 1..n instead of 0..n-1 */ 5848 ++current; 5849 5850 /* display header if we're here for the first time */ 5851 if (current == 1) { 5852 set_progress_header(gettext("Mounting ZFS filesystems")); 5853 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5854 /* too soon to report again */ 5855 return; 5856 } 5857 5858 last_progress_time = now; 5859 5860 (void) sprintf(info, "(%d/%d)", current, total); 5861 5862 if (current == total) 5863 finish_progress(info); 5864 else 5865 update_progress(info); 5866} 5867 5868static void 5869append_options(char *mntopts, char *newopts) 5870{ 5871 int len = strlen(mntopts); 5872 5873 /* original length plus new string to append plus 1 for the comma */ 5874 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5875 (void) fprintf(stderr, gettext("the opts argument for " 5876 "'%c' option is too long (more than %d chars)\n"), 5877 "-o", MNT_LINE_MAX); 5878 usage(B_FALSE); 5879 } 5880 5881 if (*mntopts) 5882 mntopts[len++] = ','; 5883 5884 (void) strcpy(&mntopts[len], newopts); 5885} 5886 5887static int 5888share_mount(int op, int argc, char **argv) 5889{ 5890 int do_all = 0; 5891 boolean_t verbose = B_FALSE; 5892 int c, ret = 0; 5893 char *options = NULL; 5894 int flags = 0; 5895 5896 /* check options */ 5897 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5898 != -1) { 5899 switch (c) { 5900 case 'a': 5901 do_all = 1; 5902 break; 5903 case 'v': 5904 verbose = B_TRUE; 5905 break; 5906 case 'o': 5907 if (*optarg == '\0') { 5908 (void) fprintf(stderr, gettext("empty mount " 5909 "options (-o) specified\n")); 5910 usage(B_FALSE); 5911 } 5912 5913 if (options == NULL) 5914 options = safe_malloc(MNT_LINE_MAX + 1); 5915 5916 /* option validation is done later */ 5917 append_options(options, optarg); 5918 break; 5919 5920 case 'O': 5921 warnx("no overlay mounts support on FreeBSD, ignoring"); 5922 break; 5923 case ':': 5924 (void) fprintf(stderr, gettext("missing argument for " 5925 "'%c' option\n"), optopt); 5926 usage(B_FALSE); 5927 break; 5928 case '?': 5929 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5930 optopt); 5931 usage(B_FALSE); 5932 } 5933 } 5934 5935 argc -= optind; 5936 argv += optind; 5937 5938 /* check number of arguments */ 5939 if (do_all) { 5940 zfs_handle_t **dslist = NULL; 5941 size_t i, count = 0; 5942 char *protocol = NULL; 5943 5944 if (op == OP_SHARE && argc > 0) { 5945 if (strcmp(argv[0], "nfs") != 0 && 5946 strcmp(argv[0], "smb") != 0) { 5947 (void) fprintf(stderr, gettext("share type " 5948 "must be 'nfs' or 'smb'\n")); 5949 usage(B_FALSE); 5950 } 5951 protocol = argv[0]; 5952 argc--; 5953 argv++; 5954 } 5955 5956 if (argc != 0) { 5957 (void) fprintf(stderr, gettext("too many arguments\n")); 5958 usage(B_FALSE); 5959 } 5960 5961 start_progress_timer(); 5962 get_all_datasets(&dslist, &count, verbose); 5963 5964 if (count == 0) 5965 return (0); 5966 5967 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5968 5969 for (i = 0; i < count; i++) { 5970 if (verbose) 5971 report_mount_progress(i, count); 5972 5973 if (share_mount_one(dslist[i], op, flags, protocol, 5974 B_FALSE, options) != 0) 5975 ret = 1; 5976 zfs_close(dslist[i]); 5977 } 5978 5979 free(dslist); 5980 } else if (argc == 0) { 5981 struct mnttab entry; 5982 5983 if ((op == OP_SHARE) || (options != NULL)) { 5984 (void) fprintf(stderr, gettext("missing filesystem " 5985 "argument (specify -a for all)\n")); 5986 usage(B_FALSE); 5987 } 5988 5989 /* 5990 * When mount is given no arguments, go through /etc/mnttab and 5991 * display any active ZFS mounts. We hide any snapshots, since 5992 * they are controlled automatically. 5993 */ 5994 rewind(mnttab_file); 5995 while (getmntent(mnttab_file, &entry) == 0) { 5996 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5997 strchr(entry.mnt_special, '@') != NULL) 5998 continue; 5999 6000 (void) printf("%-30s %s\n", entry.mnt_special, 6001 entry.mnt_mountp); 6002 } 6003 6004 } else { 6005 zfs_handle_t *zhp; 6006 6007 if (argc > 1) { 6008 (void) fprintf(stderr, 6009 gettext("too many arguments\n")); 6010 usage(B_FALSE); 6011 } 6012 6013 if ((zhp = zfs_open(g_zfs, argv[0], 6014 ZFS_TYPE_FILESYSTEM)) == NULL) { 6015 ret = 1; 6016 } else { 6017 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6018 options); 6019 zfs_close(zhp); 6020 } 6021 } 6022 6023 return (ret); 6024} 6025 6026/* 6027 * zfs mount -a [nfs] 6028 * zfs mount filesystem 6029 * 6030 * Mount all filesystems, or mount the given filesystem. 6031 */ 6032static int 6033zfs_do_mount(int argc, char **argv) 6034{ 6035 return (share_mount(OP_MOUNT, argc, argv)); 6036} 6037 6038/* 6039 * zfs share -a [nfs | smb] 6040 * zfs share filesystem 6041 * 6042 * Share all filesystems, or share the given filesystem. 6043 */ 6044static int 6045zfs_do_share(int argc, char **argv) 6046{ 6047 return (share_mount(OP_SHARE, argc, argv)); 6048} 6049 6050typedef struct unshare_unmount_node { 6051 zfs_handle_t *un_zhp; 6052 char *un_mountp; 6053 uu_avl_node_t un_avlnode; 6054} unshare_unmount_node_t; 6055 6056/* ARGSUSED */ 6057static int 6058unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6059{ 6060 const unshare_unmount_node_t *l = larg; 6061 const unshare_unmount_node_t *r = rarg; 6062 6063 return (strcmp(l->un_mountp, r->un_mountp)); 6064} 6065 6066/* 6067 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6068 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6069 * and unmount it appropriately. 6070 */ 6071static int 6072unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6073{ 6074 zfs_handle_t *zhp; 6075 int ret = 0; 6076 struct stat64 statbuf; 6077 struct extmnttab entry; 6078 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6079 ino_t path_inode; 6080 6081 /* 6082 * Search for the path in /etc/mnttab. Rather than looking for the 6083 * specific path, which can be fooled by non-standard paths (i.e. ".." 6084 * or "//"), we stat() the path and search for the corresponding 6085 * (major,minor) device pair. 6086 */ 6087 if (stat64(path, &statbuf) != 0) { 6088 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6089 cmdname, path, strerror(errno)); 6090 return (1); 6091 } 6092 path_inode = statbuf.st_ino; 6093 6094 /* 6095 * Search for the given (major,minor) pair in the mount table. 6096 */ 6097#ifdef sun 6098 rewind(mnttab_file); 6099 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6100 if (entry.mnt_major == major(statbuf.st_dev) && 6101 entry.mnt_minor == minor(statbuf.st_dev)) 6102 break; 6103 } 6104#else 6105 { 6106 struct statfs sfs; 6107 6108 if (statfs(path, &sfs) != 0) { 6109 (void) fprintf(stderr, "%s: %s\n", path, 6110 strerror(errno)); 6111 ret = -1; 6112 } 6113 statfs2mnttab(&sfs, &entry); 6114 } 6115#endif 6116 if (ret != 0) { 6117 if (op == OP_SHARE) { 6118 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6119 "currently mounted\n"), cmdname, path); 6120 return (1); 6121 } 6122 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6123 path); 6124 if ((ret = umount2(path, flags)) != 0) 6125 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6126 strerror(errno)); 6127 return (ret != 0); 6128 } 6129 6130 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6131 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6132 "filesystem\n"), cmdname, path); 6133 return (1); 6134 } 6135 6136 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6137 ZFS_TYPE_FILESYSTEM)) == NULL) 6138 return (1); 6139 6140 ret = 1; 6141 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6142 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6143 cmdname, path, strerror(errno)); 6144 goto out; 6145 } else if (statbuf.st_ino != path_inode) { 6146 (void) fprintf(stderr, gettext("cannot " 6147 "%s '%s': not a mountpoint\n"), cmdname, path); 6148 goto out; 6149 } 6150 6151 if (op == OP_SHARE) { 6152 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6153 char smbshare_prop[ZFS_MAXPROPLEN]; 6154 6155 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6156 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6157 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6158 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6159 6160 if (strcmp(nfs_mnt_prop, "off") == 0 && 6161 strcmp(smbshare_prop, "off") == 0) { 6162 (void) fprintf(stderr, gettext("cannot unshare " 6163 "'%s': legacy share\n"), path); 6164#ifdef illumos 6165 (void) fprintf(stderr, gettext("use " 6166 "unshare(1M) to unshare this filesystem\n")); 6167#endif 6168 } else if (!zfs_is_shared(zhp)) { 6169 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6170 "not currently shared\n"), path); 6171 } else { 6172 ret = zfs_unshareall_bypath(zhp, path); 6173 } 6174 } else { 6175 char mtpt_prop[ZFS_MAXPROPLEN]; 6176 6177 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6178 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6179 6180 if (is_manual) { 6181 ret = zfs_unmount(zhp, NULL, flags); 6182 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6183 (void) fprintf(stderr, gettext("cannot unmount " 6184 "'%s': legacy mountpoint\n"), 6185 zfs_get_name(zhp)); 6186 (void) fprintf(stderr, gettext("use umount(8) " 6187 "to unmount this filesystem\n")); 6188 } else { 6189 ret = zfs_unmountall(zhp, flags); 6190 } 6191 } 6192 6193out: 6194 zfs_close(zhp); 6195 6196 return (ret != 0); 6197} 6198 6199/* 6200 * Generic callback for unsharing or unmounting a filesystem. 6201 */ 6202static int 6203unshare_unmount(int op, int argc, char **argv) 6204{ 6205 int do_all = 0; 6206 int flags = 0; 6207 int ret = 0; 6208 int c; 6209 zfs_handle_t *zhp; 6210 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6211 char sharesmb[ZFS_MAXPROPLEN]; 6212 6213 /* check options */ 6214 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6215 switch (c) { 6216 case 'a': 6217 do_all = 1; 6218 break; 6219 case 'f': 6220 flags = MS_FORCE; 6221 break; 6222 case '?': 6223 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6224 optopt); 6225 usage(B_FALSE); 6226 } 6227 } 6228 6229 argc -= optind; 6230 argv += optind; 6231 6232 if (do_all) { 6233 /* 6234 * We could make use of zfs_for_each() to walk all datasets in 6235 * the system, but this would be very inefficient, especially 6236 * since we would have to linearly search /etc/mnttab for each 6237 * one. Instead, do one pass through /etc/mnttab looking for 6238 * zfs entries and call zfs_unmount() for each one. 6239 * 6240 * Things get a little tricky if the administrator has created 6241 * mountpoints beneath other ZFS filesystems. In this case, we 6242 * have to unmount the deepest filesystems first. To accomplish 6243 * this, we place all the mountpoints in an AVL tree sorted by 6244 * the special type (dataset name), and walk the result in 6245 * reverse to make sure to get any snapshots first. 6246 */ 6247 struct mnttab entry; 6248 uu_avl_pool_t *pool; 6249 uu_avl_t *tree; 6250 unshare_unmount_node_t *node; 6251 uu_avl_index_t idx; 6252 uu_avl_walk_t *walk; 6253 6254 if (argc != 0) { 6255 (void) fprintf(stderr, gettext("too many arguments\n")); 6256 usage(B_FALSE); 6257 } 6258 6259 if (((pool = uu_avl_pool_create("unmount_pool", 6260 sizeof (unshare_unmount_node_t), 6261 offsetof(unshare_unmount_node_t, un_avlnode), 6262 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6263 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6264 nomem(); 6265 6266 rewind(mnttab_file); 6267 while (getmntent(mnttab_file, &entry) == 0) { 6268 6269 /* ignore non-ZFS entries */ 6270 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6271 continue; 6272 6273 /* ignore snapshots */ 6274 if (strchr(entry.mnt_special, '@') != NULL) 6275 continue; 6276 6277 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6278 ZFS_TYPE_FILESYSTEM)) == NULL) { 6279 ret = 1; 6280 continue; 6281 } 6282 6283 switch (op) { 6284 case OP_SHARE: 6285 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6286 nfs_mnt_prop, 6287 sizeof (nfs_mnt_prop), 6288 NULL, NULL, 0, B_FALSE) == 0); 6289 if (strcmp(nfs_mnt_prop, "off") != 0) 6290 break; 6291 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6292 nfs_mnt_prop, 6293 sizeof (nfs_mnt_prop), 6294 NULL, NULL, 0, B_FALSE) == 0); 6295 if (strcmp(nfs_mnt_prop, "off") == 0) 6296 continue; 6297 break; 6298 case OP_MOUNT: 6299 /* Ignore legacy mounts */ 6300 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6301 nfs_mnt_prop, 6302 sizeof (nfs_mnt_prop), 6303 NULL, NULL, 0, B_FALSE) == 0); 6304 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6305 continue; 6306 /* Ignore canmount=noauto mounts */ 6307 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6308 ZFS_CANMOUNT_NOAUTO) 6309 continue; 6310 default: 6311 break; 6312 } 6313 6314 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6315 node->un_zhp = zhp; 6316 node->un_mountp = safe_strdup(entry.mnt_mountp); 6317 6318 uu_avl_node_init(node, &node->un_avlnode, pool); 6319 6320 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6321 uu_avl_insert(tree, node, idx); 6322 } else { 6323 zfs_close(node->un_zhp); 6324 free(node->un_mountp); 6325 free(node); 6326 } 6327 } 6328 6329 /* 6330 * Walk the AVL tree in reverse, unmounting each filesystem and 6331 * removing it from the AVL tree in the process. 6332 */ 6333 if ((walk = uu_avl_walk_start(tree, 6334 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6335 nomem(); 6336 6337 while ((node = uu_avl_walk_next(walk)) != NULL) { 6338 uu_avl_remove(tree, node); 6339 6340 switch (op) { 6341 case OP_SHARE: 6342 if (zfs_unshareall_bypath(node->un_zhp, 6343 node->un_mountp) != 0) 6344 ret = 1; 6345 break; 6346 6347 case OP_MOUNT: 6348 if (zfs_unmount(node->un_zhp, 6349 node->un_mountp, flags) != 0) 6350 ret = 1; 6351 break; 6352 } 6353 6354 zfs_close(node->un_zhp); 6355 free(node->un_mountp); 6356 free(node); 6357 } 6358 6359 uu_avl_walk_end(walk); 6360 uu_avl_destroy(tree); 6361 uu_avl_pool_destroy(pool); 6362 6363 } else { 6364 if (argc != 1) { 6365 if (argc == 0) 6366 (void) fprintf(stderr, 6367 gettext("missing filesystem argument\n")); 6368 else 6369 (void) fprintf(stderr, 6370 gettext("too many arguments\n")); 6371 usage(B_FALSE); 6372 } 6373 6374 /* 6375 * We have an argument, but it may be a full path or a ZFS 6376 * filesystem. Pass full paths off to unmount_path() (shared by 6377 * manual_unmount), otherwise open the filesystem and pass to 6378 * zfs_unmount(). 6379 */ 6380 if (argv[0][0] == '/') 6381 return (unshare_unmount_path(op, argv[0], 6382 flags, B_FALSE)); 6383 6384 if ((zhp = zfs_open(g_zfs, argv[0], 6385 ZFS_TYPE_FILESYSTEM)) == NULL) 6386 return (1); 6387 6388 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6389 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6390 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6391 NULL, 0, B_FALSE) == 0); 6392 6393 switch (op) { 6394 case OP_SHARE: 6395 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6396 nfs_mnt_prop, 6397 sizeof (nfs_mnt_prop), 6398 NULL, NULL, 0, B_FALSE) == 0); 6399 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6400 sharesmb, sizeof (sharesmb), NULL, NULL, 6401 0, B_FALSE) == 0); 6402 6403 if (strcmp(nfs_mnt_prop, "off") == 0 && 6404 strcmp(sharesmb, "off") == 0) { 6405 (void) fprintf(stderr, gettext("cannot " 6406 "unshare '%s': legacy share\n"), 6407 zfs_get_name(zhp)); 6408#ifdef illumos 6409 (void) fprintf(stderr, gettext("use " 6410 "unshare(1M) to unshare this " 6411 "filesystem\n")); 6412#endif 6413 ret = 1; 6414 } else if (!zfs_is_shared(zhp)) { 6415 (void) fprintf(stderr, gettext("cannot " 6416 "unshare '%s': not currently " 6417 "shared\n"), zfs_get_name(zhp)); 6418 ret = 1; 6419 } else if (zfs_unshareall(zhp) != 0) { 6420 ret = 1; 6421 } 6422 break; 6423 6424 case OP_MOUNT: 6425 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6426 (void) fprintf(stderr, gettext("cannot " 6427 "unmount '%s': legacy " 6428 "mountpoint\n"), zfs_get_name(zhp)); 6429 (void) fprintf(stderr, gettext("use " 6430 "umount(8) to unmount this " 6431 "filesystem\n")); 6432 ret = 1; 6433 } else if (!zfs_is_mounted(zhp, NULL)) { 6434 (void) fprintf(stderr, gettext("cannot " 6435 "unmount '%s': not currently " 6436 "mounted\n"), 6437 zfs_get_name(zhp)); 6438 ret = 1; 6439 } else if (zfs_unmountall(zhp, flags) != 0) { 6440 ret = 1; 6441 } 6442 break; 6443 } 6444 6445 zfs_close(zhp); 6446 } 6447 6448 return (ret); 6449} 6450 6451/* 6452 * zfs unmount -a 6453 * zfs unmount filesystem 6454 * 6455 * Unmount all filesystems, or a specific ZFS filesystem. 6456 */ 6457static int 6458zfs_do_unmount(int argc, char **argv) 6459{ 6460 return (unshare_unmount(OP_MOUNT, argc, argv)); 6461} 6462 6463/* 6464 * zfs unshare -a 6465 * zfs unshare filesystem 6466 * 6467 * Unshare all filesystems, or a specific ZFS filesystem. 6468 */ 6469static int 6470zfs_do_unshare(int argc, char **argv) 6471{ 6472 return (unshare_unmount(OP_SHARE, argc, argv)); 6473} 6474 6475/* 6476 * Attach/detach the given dataset to/from the given jail 6477 */ 6478/* ARGSUSED */ 6479static int 6480do_jail(int argc, char **argv, int attach) 6481{ 6482 zfs_handle_t *zhp; 6483 int jailid, ret; 6484 6485 /* check number of arguments */ 6486 if (argc < 3) { 6487 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6488 usage(B_FALSE); 6489 } 6490 if (argc > 3) { 6491 (void) fprintf(stderr, gettext("too many arguments\n")); 6492 usage(B_FALSE); 6493 } 6494 6495 jailid = jail_getid(argv[1]); 6496 if (jailid < 0) { 6497 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 6498 usage(B_FALSE); 6499 } 6500 6501 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6502 if (zhp == NULL) 6503 return (1); 6504 6505 ret = (zfs_jail(zhp, jailid, attach) != 0); 6506 6507 zfs_close(zhp); 6508 return (ret); 6509} 6510 6511/* 6512 * zfs jail jailid filesystem 6513 * 6514 * Attach the given dataset to the given jail 6515 */ 6516/* ARGSUSED */ 6517static int 6518zfs_do_jail(int argc, char **argv) 6519{ 6520 6521 return (do_jail(argc, argv, 1)); 6522} 6523 6524/* 6525 * zfs unjail jailid filesystem 6526 * 6527 * Detach the given dataset from the given jail 6528 */ 6529/* ARGSUSED */ 6530static int 6531zfs_do_unjail(int argc, char **argv) 6532{ 6533 6534 return (do_jail(argc, argv, 0)); 6535} 6536 6537/* 6538 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6539 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6540 */ 6541static int 6542manual_mount(int argc, char **argv) 6543{ 6544 zfs_handle_t *zhp; 6545 char mountpoint[ZFS_MAXPROPLEN]; 6546 char mntopts[MNT_LINE_MAX] = { '\0' }; 6547 int ret = 0; 6548 int c; 6549 int flags = 0; 6550 char *dataset, *path; 6551 6552 /* check options */ 6553 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6554 switch (c) { 6555 case 'o': 6556 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6557 break; 6558 case 'O': 6559 flags |= MS_OVERLAY; 6560 break; 6561 case 'm': 6562 flags |= MS_NOMNTTAB; 6563 break; 6564 case ':': 6565 (void) fprintf(stderr, gettext("missing argument for " 6566 "'%c' option\n"), optopt); 6567 usage(B_FALSE); 6568 break; 6569 case '?': 6570 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6571 optopt); 6572 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6573 "<path>\n")); 6574 return (2); 6575 } 6576 } 6577 6578 argc -= optind; 6579 argv += optind; 6580 6581 /* check that we only have two arguments */ 6582 if (argc != 2) { 6583 if (argc == 0) 6584 (void) fprintf(stderr, gettext("missing dataset " 6585 "argument\n")); 6586 else if (argc == 1) 6587 (void) fprintf(stderr, 6588 gettext("missing mountpoint argument\n")); 6589 else 6590 (void) fprintf(stderr, gettext("too many arguments\n")); 6591 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6592 return (2); 6593 } 6594 6595 dataset = argv[0]; 6596 path = argv[1]; 6597 6598 /* try to open the dataset */ 6599 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6600 return (1); 6601 6602 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6603 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6604 6605 /* check for legacy mountpoint and complain appropriately */ 6606 ret = 0; 6607 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6608 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6609 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6610 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6611 strerror(errno)); 6612 ret = 1; 6613 } 6614 } else { 6615 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6616 "mounted using 'mount -t zfs'\n"), dataset); 6617 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6618 "instead.\n"), path); 6619 (void) fprintf(stderr, gettext("If you must use 'mount -t zfs' " 6620 "or /etc/fstab, use 'zfs set mountpoint=legacy'.\n")); 6621 (void) fprintf(stderr, gettext("See zfs(8) for more " 6622 "information.\n")); 6623 ret = 1; 6624 } 6625 6626 return (ret); 6627} 6628 6629/* 6630 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6631 * unmounts of non-legacy filesystems, as this is the dominant administrative 6632 * interface. 6633 */ 6634static int 6635manual_unmount(int argc, char **argv) 6636{ 6637 int flags = 0; 6638 int c; 6639 6640 /* check options */ 6641 while ((c = getopt(argc, argv, "f")) != -1) { 6642 switch (c) { 6643 case 'f': 6644 flags = MS_FORCE; 6645 break; 6646 case '?': 6647 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6648 optopt); 6649 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6650 "<path>\n")); 6651 return (2); 6652 } 6653 } 6654 6655 argc -= optind; 6656 argv += optind; 6657 6658 /* check arguments */ 6659 if (argc != 1) { 6660 if (argc == 0) 6661 (void) fprintf(stderr, gettext("missing path " 6662 "argument\n")); 6663 else 6664 (void) fprintf(stderr, gettext("too many arguments\n")); 6665 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6666 return (2); 6667 } 6668 6669 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6670} 6671 6672static int 6673find_command_idx(char *command, int *idx) 6674{ 6675 int i; 6676 6677 for (i = 0; i < NCOMMAND; i++) { 6678 if (command_table[i].name == NULL) 6679 continue; 6680 6681 if (strcmp(command, command_table[i].name) == 0) { 6682 *idx = i; 6683 return (0); 6684 } 6685 } 6686 return (1); 6687} 6688 6689static int 6690zfs_do_diff(int argc, char **argv) 6691{ 6692 zfs_handle_t *zhp; 6693 int flags = 0; 6694 char *tosnap = NULL; 6695 char *fromsnap = NULL; 6696 char *atp, *copy; 6697 int err = 0; 6698 int c; 6699 6700 while ((c = getopt(argc, argv, "FHt")) != -1) { 6701 switch (c) { 6702 case 'F': 6703 flags |= ZFS_DIFF_CLASSIFY; 6704 break; 6705 case 'H': 6706 flags |= ZFS_DIFF_PARSEABLE; 6707 break; 6708 case 't': 6709 flags |= ZFS_DIFF_TIMESTAMP; 6710 break; 6711 default: 6712 (void) fprintf(stderr, 6713 gettext("invalid option '%c'\n"), optopt); 6714 usage(B_FALSE); 6715 } 6716 } 6717 6718 argc -= optind; 6719 argv += optind; 6720 6721 if (argc < 1) { 6722 (void) fprintf(stderr, 6723 gettext("must provide at least one snapshot name\n")); 6724 usage(B_FALSE); 6725 } 6726 6727 if (argc > 2) { 6728 (void) fprintf(stderr, gettext("too many arguments\n")); 6729 usage(B_FALSE); 6730 } 6731 6732 fromsnap = argv[0]; 6733 tosnap = (argc == 2) ? argv[1] : NULL; 6734 6735 copy = NULL; 6736 if (*fromsnap != '@') 6737 copy = strdup(fromsnap); 6738 else if (tosnap) 6739 copy = strdup(tosnap); 6740 if (copy == NULL) 6741 usage(B_FALSE); 6742 6743 if (atp = strchr(copy, '@')) 6744 *atp = '\0'; 6745 6746 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6747 return (1); 6748 6749 free(copy); 6750 6751 /* 6752 * Ignore SIGPIPE so that the library can give us 6753 * information on any failure 6754 */ 6755 (void) sigignore(SIGPIPE); 6756 6757 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6758 6759 zfs_close(zhp); 6760 6761 return (err != 0); 6762} 6763 6764/* 6765 * zfs bookmark <fs@snap> <fs#bmark> 6766 * 6767 * Creates a bookmark with the given name from the given snapshot. 6768 */ 6769static int 6770zfs_do_bookmark(int argc, char **argv) 6771{ 6772 char snapname[ZFS_MAXNAMELEN]; 6773 zfs_handle_t *zhp; 6774 nvlist_t *nvl; 6775 int ret = 0; 6776 int c; 6777 6778 /* check options */ 6779 while ((c = getopt(argc, argv, "")) != -1) { 6780 switch (c) { 6781 case '?': 6782 (void) fprintf(stderr, 6783 gettext("invalid option '%c'\n"), optopt); 6784 goto usage; 6785 } 6786 } 6787 6788 argc -= optind; 6789 argv += optind; 6790 6791 /* check number of arguments */ 6792 if (argc < 1) { 6793 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6794 goto usage; 6795 } 6796 if (argc < 2) { 6797 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6798 goto usage; 6799 } 6800 6801 if (strchr(argv[1], '#') == NULL) { 6802 (void) fprintf(stderr, 6803 gettext("invalid bookmark name '%s' -- " 6804 "must contain a '#'\n"), argv[1]); 6805 goto usage; 6806 } 6807 6808 if (argv[0][0] == '@') { 6809 /* 6810 * Snapshot name begins with @. 6811 * Default to same fs as bookmark. 6812 */ 6813 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6814 *strchr(snapname, '#') = '\0'; 6815 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6816 } else { 6817 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6818 } 6819 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6820 if (zhp == NULL) 6821 goto usage; 6822 zfs_close(zhp); 6823 6824 6825 nvl = fnvlist_alloc(); 6826 fnvlist_add_string(nvl, argv[1], snapname); 6827 ret = lzc_bookmark(nvl, NULL); 6828 fnvlist_free(nvl); 6829 6830 if (ret != 0) { 6831 const char *err_msg; 6832 char errbuf[1024]; 6833 6834 (void) snprintf(errbuf, sizeof (errbuf), 6835 dgettext(TEXT_DOMAIN, 6836 "cannot create bookmark '%s'"), argv[1]); 6837 6838 switch (ret) { 6839 case EXDEV: 6840 err_msg = "bookmark is in a different pool"; 6841 break; 6842 case EEXIST: 6843 err_msg = "bookmark exists"; 6844 break; 6845 case EINVAL: 6846 err_msg = "invalid argument"; 6847 break; 6848 case ENOTSUP: 6849 err_msg = "bookmark feature not enabled"; 6850 break; 6851 default: 6852 err_msg = "unknown error"; 6853 break; 6854 } 6855 (void) fprintf(stderr, "%s: %s\n", errbuf, 6856 dgettext(TEXT_DOMAIN, err_msg)); 6857 } 6858 6859 return (ret); 6860 6861usage: 6862 usage(B_FALSE); 6863 return (-1); 6864} 6865 6866int 6867main(int argc, char **argv) 6868{ 6869 int ret = 0; 6870 int i; 6871 char *progname; 6872 char *cmdname; 6873 6874 (void) setlocale(LC_ALL, ""); 6875 (void) textdomain(TEXT_DOMAIN); 6876 6877 opterr = 0; 6878 6879 if ((g_zfs = libzfs_init()) == NULL) { 6880 (void) fprintf(stderr, gettext("internal error: failed to " 6881 "initialize ZFS library\n")); 6882 return (1); 6883 } 6884 6885 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6886 6887 libzfs_print_on_error(g_zfs, B_TRUE); 6888 6889 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6890 (void) fprintf(stderr, gettext("internal error: unable to " 6891 "open %s\n"), MNTTAB); 6892 return (1); 6893 } 6894 6895 /* 6896 * This command also doubles as the /etc/fs mount and unmount program. 6897 * Determine if we should take this behavior based on argv[0]. 6898 */ 6899 progname = basename(argv[0]); 6900 if (strcmp(progname, "mount") == 0) { 6901 ret = manual_mount(argc, argv); 6902 } else if (strcmp(progname, "umount") == 0) { 6903 ret = manual_unmount(argc, argv); 6904 } else { 6905 /* 6906 * Make sure the user has specified some command. 6907 */ 6908 if (argc < 2) { 6909 (void) fprintf(stderr, gettext("missing command\n")); 6910 usage(B_FALSE); 6911 } 6912 6913 cmdname = argv[1]; 6914 6915 /* 6916 * The 'umount' command is an alias for 'unmount' 6917 */ 6918 if (strcmp(cmdname, "umount") == 0) 6919 cmdname = "unmount"; 6920 6921 /* 6922 * The 'recv' command is an alias for 'receive' 6923 */ 6924 if (strcmp(cmdname, "recv") == 0) 6925 cmdname = "receive"; 6926 6927 /* 6928 * The 'snap' command is an alias for 'snapshot' 6929 */ 6930 if (strcmp(cmdname, "snap") == 0) 6931 cmdname = "snapshot"; 6932 6933 /* 6934 * Special case '-?' 6935 */ 6936 if (strcmp(cmdname, "-?") == 0) 6937 usage(B_TRUE); 6938 6939 /* 6940 * Run the appropriate command. 6941 */ 6942 libzfs_mnttab_cache(g_zfs, B_TRUE); 6943 if (find_command_idx(cmdname, &i) == 0) { 6944 current_command = &command_table[i]; 6945 ret = command_table[i].func(argc - 1, argv + 1); 6946 } else if (strchr(cmdname, '=') != NULL) { 6947 verify(find_command_idx("set", &i) == 0); 6948 current_command = &command_table[i]; 6949 ret = command_table[i].func(argc, argv); 6950 } else { 6951 (void) fprintf(stderr, gettext("unrecognized " 6952 "command '%s'\n"), cmdname); 6953 usage(B_FALSE); 6954 } 6955 libzfs_mnttab_cache(g_zfs, B_FALSE); 6956 } 6957 6958 (void) fclose(mnttab_file); 6959 6960 if (ret == 0 && log_history) 6961 (void) zpool_log_history(g_zfs, history_str); 6962 6963 libzfs_fini(g_zfs); 6964 6965 /* 6966 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6967 * for the purposes of running ::findleaks. 6968 */ 6969 if (getenv("ZFS_ABORT") != NULL) { 6970 (void) printf("dumping core by request\n"); 6971 abort(); 6972 } 6973 6974 return (ret); 6975} 6976