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) 2012 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 61#include <libzfs.h> 62#include <libzfs_core.h> 63#include <zfs_prop.h> 64#include <zfs_deleg.h> 65#include <libuutil.h> 66#ifdef sun 67#include <aclutils.h> 68#include <directory.h> 69#endif 70 71#include "zfs_iter.h" 72#include "zfs_util.h" 73#include "zfs_comutil.h" 74 75libzfs_handle_t *g_zfs; 76 77static FILE *mnttab_file; 78static char history_str[HIS_MAX_RECORD_LEN]; 79static boolean_t log_history = B_TRUE; 80 81static int zfs_do_clone(int argc, char **argv); 82static int zfs_do_create(int argc, char **argv); 83static int zfs_do_destroy(int argc, char **argv); 84static int zfs_do_get(int argc, char **argv); 85static int zfs_do_inherit(int argc, char **argv); 86static int zfs_do_list(int argc, char **argv); 87static int zfs_do_mount(int argc, char **argv); 88static int zfs_do_rename(int argc, char **argv); 89static int zfs_do_rollback(int argc, char **argv); 90static int zfs_do_set(int argc, char **argv); 91static int zfs_do_upgrade(int argc, char **argv); 92static int zfs_do_snapshot(int argc, char **argv); 93static int zfs_do_unmount(int argc, char **argv); 94static int zfs_do_share(int argc, char **argv); 95static int zfs_do_unshare(int argc, char **argv); 96static int zfs_do_send(int argc, char **argv); 97static int zfs_do_receive(int argc, char **argv); 98static int zfs_do_promote(int argc, char **argv); 99static int zfs_do_userspace(int argc, char **argv); 100static int zfs_do_allow(int argc, char **argv); 101static int zfs_do_unallow(int argc, char **argv); 102static int zfs_do_hold(int argc, char **argv); 103static int zfs_do_holds(int argc, char **argv); 104static int zfs_do_release(int argc, char **argv); 105static int zfs_do_diff(int argc, char **argv); 106static int zfs_do_jail(int argc, char **argv); 107static int zfs_do_unjail(int argc, char **argv); 108static int zfs_do_bookmark(int argc, char **argv); 109 110/* 111 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 112 */ 113 114#ifdef DEBUG 115const char * 116_umem_debug_init(void) 117{ 118 return ("default,verbose"); /* $UMEM_DEBUG setting */ 119} 120 121const char * 122_umem_logging_init(void) 123{ 124 return ("fail,contents"); /* $UMEM_LOGGING setting */ 125} 126#endif 127 128typedef enum { 129 HELP_CLONE, 130 HELP_CREATE, 131 HELP_DESTROY, 132 HELP_GET, 133 HELP_INHERIT, 134 HELP_UPGRADE, 135 HELP_JAIL, 136 HELP_UNJAIL, 137 HELP_LIST, 138 HELP_MOUNT, 139 HELP_PROMOTE, 140 HELP_RECEIVE, 141 HELP_RENAME, 142 HELP_ROLLBACK, 143 HELP_SEND, 144 HELP_SET, 145 HELP_SHARE, 146 HELP_SNAPSHOT, 147 HELP_UNMOUNT, 148 HELP_UNSHARE, 149 HELP_ALLOW, 150 HELP_UNALLOW, 151 HELP_USERSPACE, 152 HELP_GROUPSPACE, 153 HELP_HOLD, 154 HELP_HOLDS, 155 HELP_RELEASE, 156 HELP_DIFF, 157 HELP_BOOKMARK, 158} zfs_help_t; 159 160typedef struct zfs_command { 161 const char *name; 162 int (*func)(int argc, char **argv); 163 zfs_help_t usage; 164} zfs_command_t; 165 166/* 167 * Master command table. Each ZFS command has a name, associated function, and 168 * usage message. The usage messages need to be internationalized, so we have 169 * to have a function to return the usage message based on a command index. 170 * 171 * These commands are organized according to how they are displayed in the usage 172 * message. An empty command (one with a NULL name) indicates an empty line in 173 * the generic usage message. 174 */ 175static zfs_command_t command_table[] = { 176 { "create", zfs_do_create, HELP_CREATE }, 177 { "destroy", zfs_do_destroy, HELP_DESTROY }, 178 { NULL }, 179 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 180 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 181 { "clone", zfs_do_clone, HELP_CLONE }, 182 { "promote", zfs_do_promote, HELP_PROMOTE }, 183 { "rename", zfs_do_rename, HELP_RENAME }, 184 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 185 { NULL }, 186 { "list", zfs_do_list, HELP_LIST }, 187 { NULL }, 188 { "set", zfs_do_set, HELP_SET }, 189 { "get", zfs_do_get, HELP_GET }, 190 { "inherit", zfs_do_inherit, HELP_INHERIT }, 191 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 192 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 193 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 194 { NULL }, 195 { "mount", zfs_do_mount, HELP_MOUNT }, 196 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 197 { "share", zfs_do_share, HELP_SHARE }, 198 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 199 { NULL }, 200 { "send", zfs_do_send, HELP_SEND }, 201 { "receive", zfs_do_receive, HELP_RECEIVE }, 202 { NULL }, 203 { "allow", zfs_do_allow, HELP_ALLOW }, 204 { NULL }, 205 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 206 { NULL }, 207 { "hold", zfs_do_hold, HELP_HOLD }, 208 { "holds", zfs_do_holds, HELP_HOLDS }, 209 { "release", zfs_do_release, HELP_RELEASE }, 210 { "diff", zfs_do_diff, HELP_DIFF }, 211 { NULL }, 212 { "jail", zfs_do_jail, HELP_JAIL }, 213 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 214}; 215 216#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 217 218zfs_command_t *current_command; 219 220static const char * 221get_usage(zfs_help_t idx) 222{ 223 switch (idx) { 224 case HELP_CLONE: 225 return (gettext("\tclone [-p] [-o property=value] ... " 226 "<snapshot> <filesystem|volume>\n")); 227 case HELP_CREATE: 228 return (gettext("\tcreate [-p] [-o property=value] ... " 229 "<filesystem>\n" 230 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 231 "-V <size> <volume>\n")); 232 case HELP_DESTROY: 233 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 234 "\tdestroy [-dnpRrv] " 235 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 236 "\tdestroy <filesystem|volume>#<bookmark>\n")); 237 case HELP_GET: 238 return (gettext("\tget [-rHp] [-d max] " 239 "[-o \"all\" | field[,...]]\n" 240 "\t [-t type[,...]] [-s source[,...]]\n" 241 "\t <\"all\" | property[,...]> " 242 "[filesystem|volume|snapshot] ...\n")); 243 case HELP_INHERIT: 244 return (gettext("\tinherit [-rS] <property> " 245 "<filesystem|volume|snapshot> ...\n")); 246 case HELP_UPGRADE: 247 return (gettext("\tupgrade [-v]\n" 248 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 249 case HELP_JAIL: 250 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 251 case HELP_UNJAIL: 252 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 253 case HELP_LIST: 254 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 255 "[-s property]...\n\t [-S property]... [-t type[,...]] " 256 "[filesystem|volume|snapshot] ...\n")); 257 case HELP_MOUNT: 258 return (gettext("\tmount\n" 259 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 260 case HELP_PROMOTE: 261 return (gettext("\tpromote <clone-filesystem>\n")); 262 case HELP_RECEIVE: 263 return (gettext("\treceive|recv [-vnFu] <filesystem|volume|" 264 "snapshot>\n" 265 "\treceive|recv [-vnFu] [-d | -e] <filesystem>\n")); 266 case HELP_RENAME: 267 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 268 "<filesystem|volume|snapshot>\n" 269 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 270 "\trename -r <snapshot> <snapshot>\n" 271 "\trename -u [-p] <filesystem> <filesystem>")); 272 case HELP_ROLLBACK: 273 return (gettext("\trollback [-rRf] <snapshot>\n")); 274 case HELP_SEND: 275 return (gettext("\tsend [-DnPpRv] [-[iI] snapshot] " 276 "<snapshot>\n" 277 "\tsend [-i snapshot|bookmark] " 278 "<filesystem|volume|snapshot>\n")); 279 case HELP_SET: 280 return (gettext("\tset <property=value> " 281 "<filesystem|volume|snapshot> ...\n")); 282 case HELP_SHARE: 283 return (gettext("\tshare <-a | filesystem>\n")); 284 case HELP_SNAPSHOT: 285 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... " 286 "<filesystem|volume>@<snap> ...\n")); 287 case HELP_UNMOUNT: 288 return (gettext("\tunmount|umount [-f] " 289 "<-a | filesystem|mountpoint>\n")); 290 case HELP_UNSHARE: 291 return (gettext("\tunshare " 292 "<-a | filesystem|mountpoint>\n")); 293 case HELP_ALLOW: 294 return (gettext("\tallow <filesystem|volume>\n" 295 "\tallow [-ldug] " 296 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 297 "\t <filesystem|volume>\n" 298 "\tallow [-ld] -e <perm|@setname>[,...] " 299 "<filesystem|volume>\n" 300 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 301 "\tallow -s @setname <perm|@setname>[,...] " 302 "<filesystem|volume>\n")); 303 case HELP_UNALLOW: 304 return (gettext("\tunallow [-rldug] " 305 "<\"everyone\"|user|group>[,...]\n" 306 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 307 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 308 "<filesystem|volume>\n" 309 "\tunallow [-r] -c [<perm|@setname>[,...]] " 310 "<filesystem|volume>\n" 311 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n")); 313 case HELP_USERSPACE: 314 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 315 "[-s field] ...\n" 316 "\t [-S field] ... [-t type[,...]] " 317 "<filesystem|snapshot>\n")); 318 case HELP_GROUPSPACE: 319 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 320 "[-s field] ...\n" 321 "\t [-S field] ... [-t type[,...]] " 322 "<filesystem|snapshot>\n")); 323 case HELP_HOLD: 324 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 325 case HELP_HOLDS: 326 return (gettext("\tholds [-r] <snapshot> ...\n")); 327 case HELP_RELEASE: 328 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 329 case HELP_DIFF: 330 return (gettext("\tdiff [-FHt] <snapshot> " 331 "[snapshot|filesystem]\n")); 332 case HELP_BOOKMARK: 333 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 334 } 335 336 abort(); 337 /* NOTREACHED */ 338} 339 340void 341nomem(void) 342{ 343 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 344 exit(1); 345} 346 347/* 348 * Utility function to guarantee malloc() success. 349 */ 350 351void * 352safe_malloc(size_t size) 353{ 354 void *data; 355 356 if ((data = calloc(1, size)) == NULL) 357 nomem(); 358 359 return (data); 360} 361 362static char * 363safe_strdup(char *str) 364{ 365 char *dupstr = strdup(str); 366 367 if (dupstr == NULL) 368 nomem(); 369 370 return (dupstr); 371} 372 373/* 374 * Callback routine that will print out information for each of 375 * the properties. 376 */ 377static int 378usage_prop_cb(int prop, void *cb) 379{ 380 FILE *fp = cb; 381 382 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 383 384 if (zfs_prop_readonly(prop)) 385 (void) fprintf(fp, " NO "); 386 else 387 (void) fprintf(fp, "YES "); 388 389 if (zfs_prop_inheritable(prop)) 390 (void) fprintf(fp, " YES "); 391 else 392 (void) fprintf(fp, " NO "); 393 394 if (zfs_prop_values(prop) == NULL) 395 (void) fprintf(fp, "-\n"); 396 else 397 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 398 399 return (ZPROP_CONT); 400} 401 402/* 403 * Display usage message. If we're inside a command, display only the usage for 404 * that command. Otherwise, iterate over the entire command table and display 405 * a complete usage message. 406 */ 407static void 408usage(boolean_t requested) 409{ 410 int i; 411 boolean_t show_properties = B_FALSE; 412 FILE *fp = requested ? stdout : stderr; 413 414 if (current_command == NULL) { 415 416 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 417 (void) fprintf(fp, 418 gettext("where 'command' is one of the following:\n\n")); 419 420 for (i = 0; i < NCOMMAND; i++) { 421 if (command_table[i].name == NULL) 422 (void) fprintf(fp, "\n"); 423 else 424 (void) fprintf(fp, "%s", 425 get_usage(command_table[i].usage)); 426 } 427 428 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 429 "pool/[dataset/]*dataset[@name]\n")); 430 } else { 431 (void) fprintf(fp, gettext("usage:\n")); 432 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 433 } 434 435 if (current_command != NULL && 436 (strcmp(current_command->name, "set") == 0 || 437 strcmp(current_command->name, "get") == 0 || 438 strcmp(current_command->name, "inherit") == 0 || 439 strcmp(current_command->name, "list") == 0)) 440 show_properties = B_TRUE; 441 442 if (show_properties) { 443 (void) fprintf(fp, 444 gettext("\nThe following properties are supported:\n")); 445 446 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 447 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 448 449 /* Iterate over all properties */ 450 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 451 ZFS_TYPE_DATASET); 452 453 (void) fprintf(fp, "\t%-15s ", "userused@..."); 454 (void) fprintf(fp, " NO NO <size>\n"); 455 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 456 (void) fprintf(fp, " NO NO <size>\n"); 457 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 458 (void) fprintf(fp, "YES NO <size> | none\n"); 459 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 460 (void) fprintf(fp, "YES NO <size> | none\n"); 461 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 462 (void) fprintf(fp, " NO NO <size>\n"); 463 464 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 465 "with standard units such as K, M, G, etc.\n")); 466 (void) fprintf(fp, gettext("\nUser-defined properties can " 467 "be specified by using a name containing a colon (:).\n")); 468 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 469 "properties must be appended with\n" 470 "a user or group specifier of one of these forms:\n" 471 " POSIX name (eg: \"matt\")\n" 472 " POSIX id (eg: \"126829\")\n" 473 " SMB name@domain (eg: \"matt@sun\")\n" 474 " SMB SID (eg: \"S-1-234-567-89\")\n")); 475 } else { 476 (void) fprintf(fp, 477 gettext("\nFor the property list, run: %s\n"), 478 "zfs set|get"); 479 (void) fprintf(fp, 480 gettext("\nFor the delegated permission list, run: %s\n"), 481 "zfs allow|unallow"); 482 } 483 484 /* 485 * See comments at end of main(). 486 */ 487 if (getenv("ZFS_ABORT") != NULL) { 488 (void) printf("dumping core by request\n"); 489 abort(); 490 } 491 492 exit(requested ? 0 : 2); 493} 494 495static int 496parseprop(nvlist_t *props, char *propname) 497{ 498 char *propval, *strval; 499 500 if ((propval = strchr(propname, '=')) == NULL) { 501 (void) fprintf(stderr, gettext("missing " 502 "'=' for -o option\n")); 503 return (-1); 504 } 505 *propval = '\0'; 506 propval++; 507 if (nvlist_lookup_string(props, propname, &strval) == 0) { 508 (void) fprintf(stderr, gettext("property '%s' " 509 "specified multiple times\n"), propname); 510 return (-1); 511 } 512 if (nvlist_add_string(props, propname, propval) != 0) 513 nomem(); 514 return (0); 515} 516 517static int 518parse_depth(char *opt, int *flags) 519{ 520 char *tmp; 521 int depth; 522 523 depth = (int)strtol(opt, &tmp, 0); 524 if (*tmp) { 525 (void) fprintf(stderr, 526 gettext("%s is not an integer\n"), opt); 527 usage(B_FALSE); 528 } 529 if (depth < 0) { 530 (void) fprintf(stderr, 531 gettext("Depth can not be negative.\n")); 532 usage(B_FALSE); 533 } 534 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 535 return (depth); 536} 537 538#define PROGRESS_DELAY 2 /* seconds */ 539 540static 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"; 541static time_t pt_begin; 542static char *pt_header = NULL; 543static boolean_t pt_shown; 544 545static void 546start_progress_timer(void) 547{ 548 pt_begin = time(NULL) + PROGRESS_DELAY; 549 pt_shown = B_FALSE; 550} 551 552static void 553set_progress_header(char *header) 554{ 555 assert(pt_header == NULL); 556 pt_header = safe_strdup(header); 557 if (pt_shown) { 558 (void) printf("%s: ", header); 559 (void) fflush(stdout); 560 } 561} 562 563static void 564update_progress(char *update) 565{ 566 if (!pt_shown && time(NULL) > pt_begin) { 567 int len = strlen(update); 568 569 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 570 pt_reverse); 571 (void) fflush(stdout); 572 pt_shown = B_TRUE; 573 } else if (pt_shown) { 574 int len = strlen(update); 575 576 (void) printf("%s%*.*s", update, len, len, pt_reverse); 577 (void) fflush(stdout); 578 } 579} 580 581static void 582finish_progress(char *done) 583{ 584 if (pt_shown) { 585 (void) printf("%s\n", done); 586 (void) fflush(stdout); 587 } 588 free(pt_header); 589 pt_header = NULL; 590} 591/* 592 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 593 * 594 * Given an existing dataset, create a writable copy whose initial contents 595 * are the same as the source. The newly created dataset maintains a 596 * dependency on the original; the original cannot be destroyed so long as 597 * the clone exists. 598 * 599 * The '-p' flag creates all the non-existing ancestors of the target first. 600 */ 601static int 602zfs_do_clone(int argc, char **argv) 603{ 604 zfs_handle_t *zhp = NULL; 605 boolean_t parents = B_FALSE; 606 nvlist_t *props; 607 int ret = 0; 608 int c; 609 610 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 611 nomem(); 612 613 /* check options */ 614 while ((c = getopt(argc, argv, "o:p")) != -1) { 615 switch (c) { 616 case 'o': 617 if (parseprop(props, optarg)) 618 return (1); 619 break; 620 case 'p': 621 parents = B_TRUE; 622 break; 623 case '?': 624 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 625 optopt); 626 goto usage; 627 } 628 } 629 630 argc -= optind; 631 argv += optind; 632 633 /* check number of arguments */ 634 if (argc < 1) { 635 (void) fprintf(stderr, gettext("missing source dataset " 636 "argument\n")); 637 goto usage; 638 } 639 if (argc < 2) { 640 (void) fprintf(stderr, gettext("missing target dataset " 641 "argument\n")); 642 goto usage; 643 } 644 if (argc > 2) { 645 (void) fprintf(stderr, gettext("too many arguments\n")); 646 goto usage; 647 } 648 649 /* open the source dataset */ 650 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 651 return (1); 652 653 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 654 ZFS_TYPE_VOLUME)) { 655 /* 656 * Now create the ancestors of the target dataset. If the 657 * target already exists and '-p' option was used we should not 658 * complain. 659 */ 660 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 661 ZFS_TYPE_VOLUME)) 662 return (0); 663 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 664 return (1); 665 } 666 667 /* pass to libzfs */ 668 ret = zfs_clone(zhp, argv[1], props); 669 670 /* create the mountpoint if necessary */ 671 if (ret == 0) { 672 zfs_handle_t *clone; 673 674 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 675 if (clone != NULL) { 676 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 677 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 678 ret = zfs_share(clone); 679 zfs_close(clone); 680 } 681 } 682 683 zfs_close(zhp); 684 nvlist_free(props); 685 686 return (!!ret); 687 688usage: 689 if (zhp) 690 zfs_close(zhp); 691 nvlist_free(props); 692 usage(B_FALSE); 693 return (-1); 694} 695 696/* 697 * zfs create [-p] [-o prop=value] ... fs 698 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 699 * 700 * Create a new dataset. This command can be used to create filesystems 701 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 702 * For volumes, the user must specify a size to be used. 703 * 704 * The '-s' flag applies only to volumes, and indicates that we should not try 705 * to set the reservation for this volume. By default we set a reservation 706 * equal to the size for any volume. For pools with SPA_VERSION >= 707 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 708 * 709 * The '-p' flag creates all the non-existing ancestors of the target first. 710 */ 711static int 712zfs_do_create(int argc, char **argv) 713{ 714 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 715 zfs_handle_t *zhp = NULL; 716 uint64_t volsize; 717 int c; 718 boolean_t noreserve = B_FALSE; 719 boolean_t bflag = B_FALSE; 720 boolean_t parents = B_FALSE; 721 int ret = 1; 722 nvlist_t *props; 723 uint64_t intval; 724 int canmount = ZFS_CANMOUNT_OFF; 725 726 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 727 nomem(); 728 729 /* check options */ 730 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 731 switch (c) { 732 case 'V': 733 type = ZFS_TYPE_VOLUME; 734 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 735 (void) fprintf(stderr, gettext("bad volume " 736 "size '%s': %s\n"), optarg, 737 libzfs_error_description(g_zfs)); 738 goto error; 739 } 740 741 if (nvlist_add_uint64(props, 742 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 743 nomem(); 744 volsize = intval; 745 break; 746 case 'p': 747 parents = B_TRUE; 748 break; 749 case 'b': 750 bflag = B_TRUE; 751 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 752 (void) fprintf(stderr, gettext("bad volume " 753 "block size '%s': %s\n"), optarg, 754 libzfs_error_description(g_zfs)); 755 goto error; 756 } 757 758 if (nvlist_add_uint64(props, 759 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 760 intval) != 0) 761 nomem(); 762 break; 763 case 'o': 764 if (parseprop(props, optarg)) 765 goto error; 766 break; 767 case 's': 768 noreserve = B_TRUE; 769 break; 770 case ':': 771 (void) fprintf(stderr, gettext("missing size " 772 "argument\n")); 773 goto badusage; 774 case '?': 775 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 776 optopt); 777 goto badusage; 778 } 779 } 780 781 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 782 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 783 "used when creating a volume\n")); 784 goto badusage; 785 } 786 787 argc -= optind; 788 argv += optind; 789 790 /* check number of arguments */ 791 if (argc == 0) { 792 (void) fprintf(stderr, gettext("missing %s argument\n"), 793 zfs_type_to_name(type)); 794 goto badusage; 795 } 796 if (argc > 1) { 797 (void) fprintf(stderr, gettext("too many arguments\n")); 798 goto badusage; 799 } 800 801 if (type == ZFS_TYPE_VOLUME && !noreserve) { 802 zpool_handle_t *zpool_handle; 803 uint64_t spa_version; 804 char *p; 805 zfs_prop_t resv_prop; 806 char *strval; 807 808 if (p = strchr(argv[0], '/')) 809 *p = '\0'; 810 zpool_handle = zpool_open(g_zfs, argv[0]); 811 if (p != NULL) 812 *p = '/'; 813 if (zpool_handle == NULL) 814 goto error; 815 spa_version = zpool_get_prop_int(zpool_handle, 816 ZPOOL_PROP_VERSION, NULL); 817 zpool_close(zpool_handle); 818 if (spa_version >= SPA_VERSION_REFRESERVATION) 819 resv_prop = ZFS_PROP_REFRESERVATION; 820 else 821 resv_prop = ZFS_PROP_RESERVATION; 822 volsize = zvol_volsize_to_reservation(volsize, props); 823 824 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 825 &strval) != 0) { 826 if (nvlist_add_uint64(props, 827 zfs_prop_to_name(resv_prop), volsize) != 0) { 828 nvlist_free(props); 829 nomem(); 830 } 831 } 832 } 833 834 if (parents && zfs_name_valid(argv[0], type)) { 835 /* 836 * Now create the ancestors of target dataset. If the target 837 * already exists and '-p' option was used we should not 838 * complain. 839 */ 840 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 841 ret = 0; 842 goto error; 843 } 844 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 845 goto error; 846 } 847 848 /* pass to libzfs */ 849 if (zfs_create(g_zfs, argv[0], type, props) != 0) 850 goto error; 851 852 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 853 goto error; 854 855 ret = 0; 856 /* 857 * if the user doesn't want the dataset automatically mounted, 858 * then skip the mount/share step 859 */ 860 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 861 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 862 863 /* 864 * Mount and/or share the new filesystem as appropriate. We provide a 865 * verbose error message to let the user know that their filesystem was 866 * in fact created, even if we failed to mount or share it. 867 */ 868 if (canmount == ZFS_CANMOUNT_ON) { 869 if (zfs_mount(zhp, NULL, 0) != 0) { 870 (void) fprintf(stderr, gettext("filesystem " 871 "successfully created, but not mounted\n")); 872 ret = 1; 873 } else if (zfs_share(zhp) != 0) { 874 (void) fprintf(stderr, gettext("filesystem " 875 "successfully created, but not shared\n")); 876 ret = 1; 877 } 878 } 879 880error: 881 if (zhp) 882 zfs_close(zhp); 883 nvlist_free(props); 884 return (ret); 885badusage: 886 nvlist_free(props); 887 usage(B_FALSE); 888 return (2); 889} 890 891/* 892 * zfs destroy [-rRf] <fs, vol> 893 * zfs destroy [-rRd] <snap> 894 * 895 * -r Recursively destroy all children 896 * -R Recursively destroy all dependents, including clones 897 * -f Force unmounting of any dependents 898 * -d If we can't destroy now, mark for deferred destruction 899 * 900 * Destroys the given dataset. By default, it will unmount any filesystems, 901 * and refuse to destroy a dataset that has any dependents. A dependent can 902 * either be a child, or a clone of a child. 903 */ 904typedef struct destroy_cbdata { 905 boolean_t cb_first; 906 boolean_t cb_force; 907 boolean_t cb_recurse; 908 boolean_t cb_error; 909 boolean_t cb_doclones; 910 zfs_handle_t *cb_target; 911 boolean_t cb_defer_destroy; 912 boolean_t cb_verbose; 913 boolean_t cb_parsable; 914 boolean_t cb_dryrun; 915 nvlist_t *cb_nvl; 916 nvlist_t *cb_batchedsnaps; 917 918 /* first snap in contiguous run */ 919 char *cb_firstsnap; 920 /* previous snap in contiguous run */ 921 char *cb_prevsnap; 922 int64_t cb_snapused; 923 char *cb_snapspec; 924 char *cb_bookmark; 925} destroy_cbdata_t; 926 927/* 928 * Check for any dependents based on the '-r' or '-R' flags. 929 */ 930static int 931destroy_check_dependent(zfs_handle_t *zhp, void *data) 932{ 933 destroy_cbdata_t *cbp = data; 934 const char *tname = zfs_get_name(cbp->cb_target); 935 const char *name = zfs_get_name(zhp); 936 937 if (strncmp(tname, name, strlen(tname)) == 0 && 938 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 939 /* 940 * This is a direct descendant, not a clone somewhere else in 941 * the hierarchy. 942 */ 943 if (cbp->cb_recurse) 944 goto out; 945 946 if (cbp->cb_first) { 947 (void) fprintf(stderr, gettext("cannot destroy '%s': " 948 "%s has children\n"), 949 zfs_get_name(cbp->cb_target), 950 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 951 (void) fprintf(stderr, gettext("use '-r' to destroy " 952 "the following datasets:\n")); 953 cbp->cb_first = B_FALSE; 954 cbp->cb_error = B_TRUE; 955 } 956 957 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 958 } else { 959 /* 960 * This is a clone. We only want to report this if the '-r' 961 * wasn't specified, or the target is a snapshot. 962 */ 963 if (!cbp->cb_recurse && 964 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 965 goto out; 966 967 if (cbp->cb_first) { 968 (void) fprintf(stderr, gettext("cannot destroy '%s': " 969 "%s has dependent clones\n"), 970 zfs_get_name(cbp->cb_target), 971 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 972 (void) fprintf(stderr, gettext("use '-R' to destroy " 973 "the following datasets:\n")); 974 cbp->cb_first = B_FALSE; 975 cbp->cb_error = B_TRUE; 976 cbp->cb_dryrun = B_TRUE; 977 } 978 979 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 980 } 981 982out: 983 zfs_close(zhp); 984 return (0); 985} 986 987static int 988destroy_callback(zfs_handle_t *zhp, void *data) 989{ 990 destroy_cbdata_t *cb = data; 991 const char *name = zfs_get_name(zhp); 992 993 if (cb->cb_verbose) { 994 if (cb->cb_parsable) { 995 (void) printf("destroy\t%s\n", name); 996 } else if (cb->cb_dryrun) { 997 (void) printf(gettext("would destroy %s\n"), 998 name); 999 } else { 1000 (void) printf(gettext("will destroy %s\n"), 1001 name); 1002 } 1003 } 1004 1005 /* 1006 * Ignore pools (which we've already flagged as an error before getting 1007 * here). 1008 */ 1009 if (strchr(zfs_get_name(zhp), '/') == NULL && 1010 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1011 zfs_close(zhp); 1012 return (0); 1013 } 1014 if (cb->cb_dryrun) { 1015 zfs_close(zhp); 1016 return (0); 1017 } 1018 1019 /* 1020 * We batch up all contiguous snapshots (even of different 1021 * filesystems) and destroy them with one ioctl. We can't 1022 * simply do all snap deletions and then all fs deletions, 1023 * because we must delete a clone before its origin. 1024 */ 1025 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1026 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1027 } else { 1028 int error = zfs_destroy_snaps_nvl(g_zfs, 1029 cb->cb_batchedsnaps, B_FALSE); 1030 fnvlist_free(cb->cb_batchedsnaps); 1031 cb->cb_batchedsnaps = fnvlist_alloc(); 1032 1033 if (error != 0 || 1034 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1035 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1036 zfs_close(zhp); 1037 return (-1); 1038 } 1039 } 1040 1041 zfs_close(zhp); 1042 return (0); 1043} 1044 1045static int 1046destroy_print_cb(zfs_handle_t *zhp, void *arg) 1047{ 1048 destroy_cbdata_t *cb = arg; 1049 const char *name = zfs_get_name(zhp); 1050 int err = 0; 1051 1052 if (nvlist_exists(cb->cb_nvl, name)) { 1053 if (cb->cb_firstsnap == NULL) 1054 cb->cb_firstsnap = strdup(name); 1055 if (cb->cb_prevsnap != NULL) 1056 free(cb->cb_prevsnap); 1057 /* this snap continues the current range */ 1058 cb->cb_prevsnap = strdup(name); 1059 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1060 nomem(); 1061 if (cb->cb_verbose) { 1062 if (cb->cb_parsable) { 1063 (void) printf("destroy\t%s\n", name); 1064 } else if (cb->cb_dryrun) { 1065 (void) printf(gettext("would destroy %s\n"), 1066 name); 1067 } else { 1068 (void) printf(gettext("will destroy %s\n"), 1069 name); 1070 } 1071 } 1072 } else if (cb->cb_firstsnap != NULL) { 1073 /* end of this range */ 1074 uint64_t used = 0; 1075 err = lzc_snaprange_space(cb->cb_firstsnap, 1076 cb->cb_prevsnap, &used); 1077 cb->cb_snapused += used; 1078 free(cb->cb_firstsnap); 1079 cb->cb_firstsnap = NULL; 1080 free(cb->cb_prevsnap); 1081 cb->cb_prevsnap = NULL; 1082 } 1083 zfs_close(zhp); 1084 return (err); 1085} 1086 1087static int 1088destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1089{ 1090 int err = 0; 1091 assert(cb->cb_firstsnap == NULL); 1092 assert(cb->cb_prevsnap == NULL); 1093 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1094 if (cb->cb_firstsnap != NULL) { 1095 uint64_t used = 0; 1096 if (err == 0) { 1097 err = lzc_snaprange_space(cb->cb_firstsnap, 1098 cb->cb_prevsnap, &used); 1099 } 1100 cb->cb_snapused += used; 1101 free(cb->cb_firstsnap); 1102 cb->cb_firstsnap = NULL; 1103 free(cb->cb_prevsnap); 1104 cb->cb_prevsnap = NULL; 1105 } 1106 return (err); 1107} 1108 1109static int 1110snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1111{ 1112 destroy_cbdata_t *cb = arg; 1113 int err = 0; 1114 1115 /* Check for clones. */ 1116 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1117 cb->cb_target = zhp; 1118 cb->cb_first = B_TRUE; 1119 err = zfs_iter_dependents(zhp, B_TRUE, 1120 destroy_check_dependent, cb); 1121 } 1122 1123 if (err == 0) { 1124 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1125 nomem(); 1126 } 1127 zfs_close(zhp); 1128 return (err); 1129} 1130 1131static int 1132gather_snapshots(zfs_handle_t *zhp, void *arg) 1133{ 1134 destroy_cbdata_t *cb = arg; 1135 int err = 0; 1136 1137 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1138 if (err == ENOENT) 1139 err = 0; 1140 if (err != 0) 1141 goto out; 1142 1143 if (cb->cb_verbose) { 1144 err = destroy_print_snapshots(zhp, cb); 1145 if (err != 0) 1146 goto out; 1147 } 1148 1149 if (cb->cb_recurse) 1150 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1151 1152out: 1153 zfs_close(zhp); 1154 return (err); 1155} 1156 1157static int 1158destroy_clones(destroy_cbdata_t *cb) 1159{ 1160 nvpair_t *pair; 1161 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1162 pair != NULL; 1163 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1164 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1165 ZFS_TYPE_SNAPSHOT); 1166 if (zhp != NULL) { 1167 boolean_t defer = cb->cb_defer_destroy; 1168 int err = 0; 1169 1170 /* 1171 * We can't defer destroy non-snapshots, so set it to 1172 * false while destroying the clones. 1173 */ 1174 cb->cb_defer_destroy = B_FALSE; 1175 err = zfs_iter_dependents(zhp, B_FALSE, 1176 destroy_callback, cb); 1177 cb->cb_defer_destroy = defer; 1178 zfs_close(zhp); 1179 if (err != 0) 1180 return (err); 1181 } 1182 } 1183 return (0); 1184} 1185 1186static int 1187zfs_do_destroy(int argc, char **argv) 1188{ 1189 destroy_cbdata_t cb = { 0 }; 1190 int rv = 0; 1191 int err = 0; 1192 int c; 1193 zfs_handle_t *zhp = NULL; 1194 char *at, *pound; 1195 zfs_type_t type = ZFS_TYPE_DATASET; 1196 1197 /* check options */ 1198 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1199 switch (c) { 1200 case 'v': 1201 cb.cb_verbose = B_TRUE; 1202 break; 1203 case 'p': 1204 cb.cb_verbose = B_TRUE; 1205 cb.cb_parsable = B_TRUE; 1206 break; 1207 case 'n': 1208 cb.cb_dryrun = B_TRUE; 1209 break; 1210 case 'd': 1211 cb.cb_defer_destroy = B_TRUE; 1212 type = ZFS_TYPE_SNAPSHOT; 1213 break; 1214 case 'f': 1215 cb.cb_force = B_TRUE; 1216 break; 1217 case 'r': 1218 cb.cb_recurse = B_TRUE; 1219 break; 1220 case 'R': 1221 cb.cb_recurse = B_TRUE; 1222 cb.cb_doclones = B_TRUE; 1223 break; 1224 case '?': 1225 default: 1226 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1227 optopt); 1228 usage(B_FALSE); 1229 } 1230 } 1231 1232 argc -= optind; 1233 argv += optind; 1234 1235 /* check number of arguments */ 1236 if (argc == 0) { 1237 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1238 usage(B_FALSE); 1239 } 1240 if (argc > 1) { 1241 (void) fprintf(stderr, gettext("too many arguments\n")); 1242 usage(B_FALSE); 1243 } 1244 1245 at = strchr(argv[0], '@'); 1246 pound = strchr(argv[0], '#'); 1247 if (at != NULL) { 1248 1249 /* Build the list of snaps to destroy in cb_nvl. */ 1250 cb.cb_nvl = fnvlist_alloc(); 1251 1252 *at = '\0'; 1253 zhp = zfs_open(g_zfs, argv[0], 1254 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1255 if (zhp == NULL) 1256 return (1); 1257 1258 cb.cb_snapspec = at + 1; 1259 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1260 cb.cb_error) { 1261 rv = 1; 1262 goto out; 1263 } 1264 1265 if (nvlist_empty(cb.cb_nvl)) { 1266 (void) fprintf(stderr, gettext("could not find any " 1267 "snapshots to destroy; check snapshot names.\n")); 1268 rv = 1; 1269 goto out; 1270 } 1271 1272 if (cb.cb_verbose) { 1273 char buf[16]; 1274 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1275 if (cb.cb_parsable) { 1276 (void) printf("reclaim\t%llu\n", 1277 cb.cb_snapused); 1278 } else if (cb.cb_dryrun) { 1279 (void) printf(gettext("would reclaim %s\n"), 1280 buf); 1281 } else { 1282 (void) printf(gettext("will reclaim %s\n"), 1283 buf); 1284 } 1285 } 1286 1287 if (!cb.cb_dryrun) { 1288 if (cb.cb_doclones) { 1289 cb.cb_batchedsnaps = fnvlist_alloc(); 1290 err = destroy_clones(&cb); 1291 if (err == 0) { 1292 err = zfs_destroy_snaps_nvl(g_zfs, 1293 cb.cb_batchedsnaps, B_FALSE); 1294 } 1295 if (err != 0) { 1296 rv = 1; 1297 goto out; 1298 } 1299 } 1300 if (err == 0) { 1301 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1302 cb.cb_defer_destroy); 1303 } 1304 } 1305 1306 if (err != 0) 1307 rv = 1; 1308 } else if (pound != NULL) { 1309 int err; 1310 nvlist_t *nvl; 1311 1312 if (cb.cb_dryrun) { 1313 (void) fprintf(stderr, 1314 "dryrun is not supported with bookmark\n"); 1315 return (-1); 1316 } 1317 1318 if (cb.cb_defer_destroy) { 1319 (void) fprintf(stderr, 1320 "defer destroy is not supported with bookmark\n"); 1321 return (-1); 1322 } 1323 1324 if (cb.cb_recurse) { 1325 (void) fprintf(stderr, 1326 "recursive is not supported with bookmark\n"); 1327 return (-1); 1328 } 1329 1330 if (!zfs_bookmark_exists(argv[0])) { 1331 (void) fprintf(stderr, gettext("bookmark '%s' " 1332 "does not exist.\n"), argv[0]); 1333 return (1); 1334 } 1335 1336 nvl = fnvlist_alloc(); 1337 fnvlist_add_boolean(nvl, argv[0]); 1338 1339 err = lzc_destroy_bookmarks(nvl, NULL); 1340 if (err != 0) { 1341 (void) zfs_standard_error(g_zfs, err, 1342 "cannot destroy bookmark"); 1343 } 1344 1345 nvlist_free(cb.cb_nvl); 1346 1347 return (err); 1348 } else { 1349 /* Open the given dataset */ 1350 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1351 return (1); 1352 1353 cb.cb_target = zhp; 1354 1355 /* 1356 * Perform an explicit check for pools before going any further. 1357 */ 1358 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1359 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1360 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1361 "operation does not apply to pools\n"), 1362 zfs_get_name(zhp)); 1363 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1364 "%s' to destroy all datasets in the pool\n"), 1365 zfs_get_name(zhp)); 1366 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1367 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1368 rv = 1; 1369 goto out; 1370 } 1371 1372 /* 1373 * Check for any dependents and/or clones. 1374 */ 1375 cb.cb_first = B_TRUE; 1376 if (!cb.cb_doclones && 1377 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1378 &cb) != 0) { 1379 rv = 1; 1380 goto out; 1381 } 1382 1383 if (cb.cb_error) { 1384 rv = 1; 1385 goto out; 1386 } 1387 1388 cb.cb_batchedsnaps = fnvlist_alloc(); 1389 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1390 &cb) != 0) { 1391 rv = 1; 1392 goto out; 1393 } 1394 1395 /* 1396 * Do the real thing. The callback will close the 1397 * handle regardless of whether it succeeds or not. 1398 */ 1399 err = destroy_callback(zhp, &cb); 1400 zhp = NULL; 1401 if (err == 0) { 1402 err = zfs_destroy_snaps_nvl(g_zfs, 1403 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1404 } 1405 if (err != 0) 1406 rv = 1; 1407 } 1408 1409out: 1410 fnvlist_free(cb.cb_batchedsnaps); 1411 fnvlist_free(cb.cb_nvl); 1412 if (zhp != NULL) 1413 zfs_close(zhp); 1414 return (rv); 1415} 1416 1417static boolean_t 1418is_recvd_column(zprop_get_cbdata_t *cbp) 1419{ 1420 int i; 1421 zfs_get_column_t col; 1422 1423 for (i = 0; i < ZFS_GET_NCOLS && 1424 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1425 if (col == GET_COL_RECVD) 1426 return (B_TRUE); 1427 return (B_FALSE); 1428} 1429 1430/* 1431 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1432 * < all | property[,property]... > < fs | snap | vol > ... 1433 * 1434 * -r recurse over any child datasets 1435 * -H scripted mode. Headers are stripped, and fields are separated 1436 * by tabs instead of spaces. 1437 * -o Set of fields to display. One of "name,property,value, 1438 * received,source". Default is "name,property,value,source". 1439 * "all" is an alias for all five. 1440 * -s Set of sources to allow. One of 1441 * "local,default,inherited,received,temporary,none". Default is 1442 * all six. 1443 * -p Display values in parsable (literal) format. 1444 * 1445 * Prints properties for the given datasets. The user can control which 1446 * columns to display as well as which property types to allow. 1447 */ 1448 1449/* 1450 * Invoked to display the properties for a single dataset. 1451 */ 1452static int 1453get_callback(zfs_handle_t *zhp, void *data) 1454{ 1455 char buf[ZFS_MAXPROPLEN]; 1456 char rbuf[ZFS_MAXPROPLEN]; 1457 zprop_source_t sourcetype; 1458 char source[ZFS_MAXNAMELEN]; 1459 zprop_get_cbdata_t *cbp = data; 1460 nvlist_t *user_props = zfs_get_user_props(zhp); 1461 zprop_list_t *pl = cbp->cb_proplist; 1462 nvlist_t *propval; 1463 char *strval; 1464 char *sourceval; 1465 boolean_t received = is_recvd_column(cbp); 1466 1467 for (; pl != NULL; pl = pl->pl_next) { 1468 char *recvdval = NULL; 1469 /* 1470 * Skip the special fake placeholder. This will also skip over 1471 * the name property when 'all' is specified. 1472 */ 1473 if (pl->pl_prop == ZFS_PROP_NAME && 1474 pl == cbp->cb_proplist) 1475 continue; 1476 1477 if (pl->pl_prop != ZPROP_INVAL) { 1478 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1479 sizeof (buf), &sourcetype, source, 1480 sizeof (source), 1481 cbp->cb_literal) != 0) { 1482 if (pl->pl_all) 1483 continue; 1484 if (!zfs_prop_valid_for_type(pl->pl_prop, 1485 ZFS_TYPE_DATASET)) { 1486 (void) fprintf(stderr, 1487 gettext("No such property '%s'\n"), 1488 zfs_prop_to_name(pl->pl_prop)); 1489 continue; 1490 } 1491 sourcetype = ZPROP_SRC_NONE; 1492 (void) strlcpy(buf, "-", sizeof (buf)); 1493 } 1494 1495 if (received && (zfs_prop_get_recvd(zhp, 1496 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1497 cbp->cb_literal) == 0)) 1498 recvdval = rbuf; 1499 1500 zprop_print_one_property(zfs_get_name(zhp), cbp, 1501 zfs_prop_to_name(pl->pl_prop), 1502 buf, sourcetype, source, recvdval); 1503 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1504 sourcetype = ZPROP_SRC_LOCAL; 1505 1506 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1507 buf, sizeof (buf), cbp->cb_literal) != 0) { 1508 sourcetype = ZPROP_SRC_NONE; 1509 (void) strlcpy(buf, "-", sizeof (buf)); 1510 } 1511 1512 zprop_print_one_property(zfs_get_name(zhp), cbp, 1513 pl->pl_user_prop, buf, sourcetype, source, NULL); 1514 } else if (zfs_prop_written(pl->pl_user_prop)) { 1515 sourcetype = ZPROP_SRC_LOCAL; 1516 1517 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1518 buf, sizeof (buf), cbp->cb_literal) != 0) { 1519 sourcetype = ZPROP_SRC_NONE; 1520 (void) strlcpy(buf, "-", sizeof (buf)); 1521 } 1522 1523 zprop_print_one_property(zfs_get_name(zhp), cbp, 1524 pl->pl_user_prop, buf, sourcetype, source, NULL); 1525 } else { 1526 if (nvlist_lookup_nvlist(user_props, 1527 pl->pl_user_prop, &propval) != 0) { 1528 if (pl->pl_all) 1529 continue; 1530 sourcetype = ZPROP_SRC_NONE; 1531 strval = "-"; 1532 } else { 1533 verify(nvlist_lookup_string(propval, 1534 ZPROP_VALUE, &strval) == 0); 1535 verify(nvlist_lookup_string(propval, 1536 ZPROP_SOURCE, &sourceval) == 0); 1537 1538 if (strcmp(sourceval, 1539 zfs_get_name(zhp)) == 0) { 1540 sourcetype = ZPROP_SRC_LOCAL; 1541 } else if (strcmp(sourceval, 1542 ZPROP_SOURCE_VAL_RECVD) == 0) { 1543 sourcetype = ZPROP_SRC_RECEIVED; 1544 } else { 1545 sourcetype = ZPROP_SRC_INHERITED; 1546 (void) strlcpy(source, 1547 sourceval, sizeof (source)); 1548 } 1549 } 1550 1551 if (received && (zfs_prop_get_recvd(zhp, 1552 pl->pl_user_prop, rbuf, sizeof (rbuf), 1553 cbp->cb_literal) == 0)) 1554 recvdval = rbuf; 1555 1556 zprop_print_one_property(zfs_get_name(zhp), cbp, 1557 pl->pl_user_prop, strval, sourcetype, 1558 source, recvdval); 1559 } 1560 } 1561 1562 return (0); 1563} 1564 1565static int 1566zfs_do_get(int argc, char **argv) 1567{ 1568 zprop_get_cbdata_t cb = { 0 }; 1569 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1570 int types = ZFS_TYPE_DATASET; 1571 char *value, *fields; 1572 int ret = 0; 1573 int limit = 0; 1574 zprop_list_t fake_name = { 0 }; 1575 1576 /* 1577 * Set up default columns and sources. 1578 */ 1579 cb.cb_sources = ZPROP_SRC_ALL; 1580 cb.cb_columns[0] = GET_COL_NAME; 1581 cb.cb_columns[1] = GET_COL_PROPERTY; 1582 cb.cb_columns[2] = GET_COL_VALUE; 1583 cb.cb_columns[3] = GET_COL_SOURCE; 1584 cb.cb_type = ZFS_TYPE_DATASET; 1585 1586 /* check options */ 1587 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1588 switch (c) { 1589 case 'p': 1590 cb.cb_literal = B_TRUE; 1591 break; 1592 case 'd': 1593 limit = parse_depth(optarg, &flags); 1594 break; 1595 case 'r': 1596 flags |= ZFS_ITER_RECURSE; 1597 break; 1598 case 'H': 1599 cb.cb_scripted = B_TRUE; 1600 break; 1601 case ':': 1602 (void) fprintf(stderr, gettext("missing argument for " 1603 "'%c' option\n"), optopt); 1604 usage(B_FALSE); 1605 break; 1606 case 'o': 1607 /* 1608 * Process the set of columns to display. We zero out 1609 * the structure to give us a blank slate. 1610 */ 1611 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1612 i = 0; 1613 while (*optarg != '\0') { 1614 static char *col_subopts[] = 1615 { "name", "property", "value", "received", 1616 "source", "all", NULL }; 1617 1618 if (i == ZFS_GET_NCOLS) { 1619 (void) fprintf(stderr, gettext("too " 1620 "many fields given to -o " 1621 "option\n")); 1622 usage(B_FALSE); 1623 } 1624 1625 switch (getsubopt(&optarg, col_subopts, 1626 &value)) { 1627 case 0: 1628 cb.cb_columns[i++] = GET_COL_NAME; 1629 break; 1630 case 1: 1631 cb.cb_columns[i++] = GET_COL_PROPERTY; 1632 break; 1633 case 2: 1634 cb.cb_columns[i++] = GET_COL_VALUE; 1635 break; 1636 case 3: 1637 cb.cb_columns[i++] = GET_COL_RECVD; 1638 flags |= ZFS_ITER_RECVD_PROPS; 1639 break; 1640 case 4: 1641 cb.cb_columns[i++] = GET_COL_SOURCE; 1642 break; 1643 case 5: 1644 if (i > 0) { 1645 (void) fprintf(stderr, 1646 gettext("\"all\" conflicts " 1647 "with specific fields " 1648 "given to -o option\n")); 1649 usage(B_FALSE); 1650 } 1651 cb.cb_columns[0] = GET_COL_NAME; 1652 cb.cb_columns[1] = GET_COL_PROPERTY; 1653 cb.cb_columns[2] = GET_COL_VALUE; 1654 cb.cb_columns[3] = GET_COL_RECVD; 1655 cb.cb_columns[4] = GET_COL_SOURCE; 1656 flags |= ZFS_ITER_RECVD_PROPS; 1657 i = ZFS_GET_NCOLS; 1658 break; 1659 default: 1660 (void) fprintf(stderr, 1661 gettext("invalid column name " 1662 "'%s'\n"), value); 1663 usage(B_FALSE); 1664 } 1665 } 1666 break; 1667 1668 case 's': 1669 cb.cb_sources = 0; 1670 while (*optarg != '\0') { 1671 static char *source_subopts[] = { 1672 "local", "default", "inherited", 1673 "received", "temporary", "none", 1674 NULL }; 1675 1676 switch (getsubopt(&optarg, source_subopts, 1677 &value)) { 1678 case 0: 1679 cb.cb_sources |= ZPROP_SRC_LOCAL; 1680 break; 1681 case 1: 1682 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1683 break; 1684 case 2: 1685 cb.cb_sources |= ZPROP_SRC_INHERITED; 1686 break; 1687 case 3: 1688 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1689 break; 1690 case 4: 1691 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1692 break; 1693 case 5: 1694 cb.cb_sources |= ZPROP_SRC_NONE; 1695 break; 1696 default: 1697 (void) fprintf(stderr, 1698 gettext("invalid source " 1699 "'%s'\n"), value); 1700 usage(B_FALSE); 1701 } 1702 } 1703 break; 1704 1705 case 't': 1706 types = 0; 1707 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1708 while (*optarg != '\0') { 1709 static char *type_subopts[] = { "filesystem", 1710 "volume", "snapshot", "bookmark", 1711 "all", NULL }; 1712 1713 switch (getsubopt(&optarg, type_subopts, 1714 &value)) { 1715 case 0: 1716 types |= ZFS_TYPE_FILESYSTEM; 1717 break; 1718 case 1: 1719 types |= ZFS_TYPE_VOLUME; 1720 break; 1721 case 2: 1722 types |= ZFS_TYPE_SNAPSHOT; 1723 break; 1724 case 3: 1725 types |= ZFS_TYPE_BOOKMARK; 1726 break; 1727 case 4: 1728 types = ZFS_TYPE_DATASET | 1729 ZFS_TYPE_BOOKMARK; 1730 break; 1731 1732 default: 1733 (void) fprintf(stderr, 1734 gettext("invalid type '%s'\n"), 1735 value); 1736 usage(B_FALSE); 1737 } 1738 } 1739 break; 1740 1741 case '?': 1742 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1743 optopt); 1744 usage(B_FALSE); 1745 } 1746 } 1747 1748 argc -= optind; 1749 argv += optind; 1750 1751 if (argc < 1) { 1752 (void) fprintf(stderr, gettext("missing property " 1753 "argument\n")); 1754 usage(B_FALSE); 1755 } 1756 1757 fields = argv[0]; 1758 1759 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1760 != 0) 1761 usage(B_FALSE); 1762 1763 argc--; 1764 argv++; 1765 1766 /* 1767 * As part of zfs_expand_proplist(), we keep track of the maximum column 1768 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1769 * need to know the maximum name length. However, the user likely did 1770 * not specify 'name' as one of the properties to fetch, so we need to 1771 * make sure we always include at least this property for 1772 * print_get_headers() to work properly. 1773 */ 1774 if (cb.cb_proplist != NULL) { 1775 fake_name.pl_prop = ZFS_PROP_NAME; 1776 fake_name.pl_width = strlen(gettext("NAME")); 1777 fake_name.pl_next = cb.cb_proplist; 1778 cb.cb_proplist = &fake_name; 1779 } 1780 1781 cb.cb_first = B_TRUE; 1782 1783 /* run for each object */ 1784 ret = zfs_for_each(argc, argv, flags, types, NULL, 1785 &cb.cb_proplist, limit, get_callback, &cb); 1786 1787 if (cb.cb_proplist == &fake_name) 1788 zprop_free_list(fake_name.pl_next); 1789 else 1790 zprop_free_list(cb.cb_proplist); 1791 1792 return (ret); 1793} 1794 1795/* 1796 * inherit [-rS] <property> <fs|vol> ... 1797 * 1798 * -r Recurse over all children 1799 * -S Revert to received value, if any 1800 * 1801 * For each dataset specified on the command line, inherit the given property 1802 * from its parent. Inheriting a property at the pool level will cause it to 1803 * use the default value. The '-r' flag will recurse over all children, and is 1804 * useful for setting a property on a hierarchy-wide basis, regardless of any 1805 * local modifications for each dataset. 1806 */ 1807 1808typedef struct inherit_cbdata { 1809 const char *cb_propname; 1810 boolean_t cb_received; 1811} inherit_cbdata_t; 1812 1813static int 1814inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1815{ 1816 inherit_cbdata_t *cb = data; 1817 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1818 1819 /* 1820 * If we're doing it recursively, then ignore properties that 1821 * are not valid for this type of dataset. 1822 */ 1823 if (prop != ZPROP_INVAL && 1824 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1825 return (0); 1826 1827 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1828} 1829 1830static int 1831inherit_cb(zfs_handle_t *zhp, void *data) 1832{ 1833 inherit_cbdata_t *cb = data; 1834 1835 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1836} 1837 1838static int 1839zfs_do_inherit(int argc, char **argv) 1840{ 1841 int c; 1842 zfs_prop_t prop; 1843 inherit_cbdata_t cb = { 0 }; 1844 char *propname; 1845 int ret = 0; 1846 int flags = 0; 1847 boolean_t received = B_FALSE; 1848 1849 /* check options */ 1850 while ((c = getopt(argc, argv, "rS")) != -1) { 1851 switch (c) { 1852 case 'r': 1853 flags |= ZFS_ITER_RECURSE; 1854 break; 1855 case 'S': 1856 received = B_TRUE; 1857 break; 1858 case '?': 1859 default: 1860 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1861 optopt); 1862 usage(B_FALSE); 1863 } 1864 } 1865 1866 argc -= optind; 1867 argv += optind; 1868 1869 /* check number of arguments */ 1870 if (argc < 1) { 1871 (void) fprintf(stderr, gettext("missing property argument\n")); 1872 usage(B_FALSE); 1873 } 1874 if (argc < 2) { 1875 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1876 usage(B_FALSE); 1877 } 1878 1879 propname = argv[0]; 1880 argc--; 1881 argv++; 1882 1883 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1884 if (zfs_prop_readonly(prop)) { 1885 (void) fprintf(stderr, gettext( 1886 "%s property is read-only\n"), 1887 propname); 1888 return (1); 1889 } 1890 if (!zfs_prop_inheritable(prop) && !received) { 1891 (void) fprintf(stderr, gettext("'%s' property cannot " 1892 "be inherited\n"), propname); 1893 if (prop == ZFS_PROP_QUOTA || 1894 prop == ZFS_PROP_RESERVATION || 1895 prop == ZFS_PROP_REFQUOTA || 1896 prop == ZFS_PROP_REFRESERVATION) 1897 (void) fprintf(stderr, gettext("use 'zfs set " 1898 "%s=none' to clear\n"), propname); 1899 return (1); 1900 } 1901 if (received && (prop == ZFS_PROP_VOLSIZE || 1902 prop == ZFS_PROP_VERSION)) { 1903 (void) fprintf(stderr, gettext("'%s' property cannot " 1904 "be reverted to a received value\n"), propname); 1905 return (1); 1906 } 1907 } else if (!zfs_prop_user(propname)) { 1908 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1909 propname); 1910 usage(B_FALSE); 1911 } 1912 1913 cb.cb_propname = propname; 1914 cb.cb_received = received; 1915 1916 if (flags & ZFS_ITER_RECURSE) { 1917 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1918 NULL, NULL, 0, inherit_recurse_cb, &cb); 1919 } else { 1920 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1921 NULL, NULL, 0, inherit_cb, &cb); 1922 } 1923 1924 return (ret); 1925} 1926 1927typedef struct upgrade_cbdata { 1928 uint64_t cb_numupgraded; 1929 uint64_t cb_numsamegraded; 1930 uint64_t cb_numfailed; 1931 uint64_t cb_version; 1932 boolean_t cb_newer; 1933 boolean_t cb_foundone; 1934 char cb_lastfs[ZFS_MAXNAMELEN]; 1935} upgrade_cbdata_t; 1936 1937static int 1938same_pool(zfs_handle_t *zhp, const char *name) 1939{ 1940 int len1 = strcspn(name, "/@"); 1941 const char *zhname = zfs_get_name(zhp); 1942 int len2 = strcspn(zhname, "/@"); 1943 1944 if (len1 != len2) 1945 return (B_FALSE); 1946 return (strncmp(name, zhname, len1) == 0); 1947} 1948 1949static int 1950upgrade_list_callback(zfs_handle_t *zhp, void *data) 1951{ 1952 upgrade_cbdata_t *cb = data; 1953 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1954 1955 /* list if it's old/new */ 1956 if ((!cb->cb_newer && version < ZPL_VERSION) || 1957 (cb->cb_newer && version > ZPL_VERSION)) { 1958 char *str; 1959 if (cb->cb_newer) { 1960 str = gettext("The following filesystems are " 1961 "formatted using a newer software version and\n" 1962 "cannot be accessed on the current system.\n\n"); 1963 } else { 1964 str = gettext("The following filesystems are " 1965 "out of date, and can be upgraded. After being\n" 1966 "upgraded, these filesystems (and any 'zfs send' " 1967 "streams generated from\n" 1968 "subsequent snapshots) will no longer be " 1969 "accessible by older software versions.\n\n"); 1970 } 1971 1972 if (!cb->cb_foundone) { 1973 (void) puts(str); 1974 (void) printf(gettext("VER FILESYSTEM\n")); 1975 (void) printf(gettext("--- ------------\n")); 1976 cb->cb_foundone = B_TRUE; 1977 } 1978 1979 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1980 } 1981 1982 return (0); 1983} 1984 1985static int 1986upgrade_set_callback(zfs_handle_t *zhp, void *data) 1987{ 1988 upgrade_cbdata_t *cb = data; 1989 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1990 int needed_spa_version; 1991 int spa_version; 1992 1993 if (zfs_spa_version(zhp, &spa_version) < 0) 1994 return (-1); 1995 1996 needed_spa_version = zfs_spa_version_map(cb->cb_version); 1997 1998 if (needed_spa_version < 0) 1999 return (-1); 2000 2001 if (spa_version < needed_spa_version) { 2002 /* can't upgrade */ 2003 (void) printf(gettext("%s: can not be " 2004 "upgraded; the pool version needs to first " 2005 "be upgraded\nto version %d\n\n"), 2006 zfs_get_name(zhp), needed_spa_version); 2007 cb->cb_numfailed++; 2008 return (0); 2009 } 2010 2011 /* upgrade */ 2012 if (version < cb->cb_version) { 2013 char verstr[16]; 2014 (void) snprintf(verstr, sizeof (verstr), 2015 "%llu", cb->cb_version); 2016 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2017 /* 2018 * If they did "zfs upgrade -a", then we could 2019 * be doing ioctls to different pools. We need 2020 * to log this history once to each pool, and bypass 2021 * the normal history logging that happens in main(). 2022 */ 2023 (void) zpool_log_history(g_zfs, history_str); 2024 log_history = B_FALSE; 2025 } 2026 if (zfs_prop_set(zhp, "version", verstr) == 0) 2027 cb->cb_numupgraded++; 2028 else 2029 cb->cb_numfailed++; 2030 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2031 } else if (version > cb->cb_version) { 2032 /* can't downgrade */ 2033 (void) printf(gettext("%s: can not be downgraded; " 2034 "it is already at version %u\n"), 2035 zfs_get_name(zhp), version); 2036 cb->cb_numfailed++; 2037 } else { 2038 cb->cb_numsamegraded++; 2039 } 2040 return (0); 2041} 2042 2043/* 2044 * zfs upgrade 2045 * zfs upgrade -v 2046 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2047 */ 2048static int 2049zfs_do_upgrade(int argc, char **argv) 2050{ 2051 boolean_t all = B_FALSE; 2052 boolean_t showversions = B_FALSE; 2053 int ret = 0; 2054 upgrade_cbdata_t cb = { 0 }; 2055 char c; 2056 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2057 2058 /* check options */ 2059 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2060 switch (c) { 2061 case 'r': 2062 flags |= ZFS_ITER_RECURSE; 2063 break; 2064 case 'v': 2065 showversions = B_TRUE; 2066 break; 2067 case 'V': 2068 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2069 optarg, &cb.cb_version) != 0) { 2070 (void) fprintf(stderr, 2071 gettext("invalid version %s\n"), optarg); 2072 usage(B_FALSE); 2073 } 2074 break; 2075 case 'a': 2076 all = B_TRUE; 2077 break; 2078 case '?': 2079 default: 2080 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2081 optopt); 2082 usage(B_FALSE); 2083 } 2084 } 2085 2086 argc -= optind; 2087 argv += optind; 2088 2089 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2090 usage(B_FALSE); 2091 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2092 cb.cb_version || argc)) 2093 usage(B_FALSE); 2094 if ((all || argc) && (showversions)) 2095 usage(B_FALSE); 2096 if (all && argc) 2097 usage(B_FALSE); 2098 2099 if (showversions) { 2100 /* Show info on available versions. */ 2101 (void) printf(gettext("The following filesystem versions are " 2102 "supported:\n\n")); 2103 (void) printf(gettext("VER DESCRIPTION\n")); 2104 (void) printf("--- -----------------------------------------" 2105 "---------------\n"); 2106 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2107 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2108 (void) printf(gettext(" 3 Case insensitive and filesystem " 2109 "user identifier (FUID)\n")); 2110 (void) printf(gettext(" 4 userquota, groupquota " 2111 "properties\n")); 2112 (void) printf(gettext(" 5 System attributes\n")); 2113 (void) printf(gettext("\nFor more information on a particular " 2114 "version, including supported releases,\n")); 2115 (void) printf("see the ZFS Administration Guide.\n\n"); 2116 ret = 0; 2117 } else if (argc || all) { 2118 /* Upgrade filesystems */ 2119 if (cb.cb_version == 0) 2120 cb.cb_version = ZPL_VERSION; 2121 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2122 NULL, NULL, 0, upgrade_set_callback, &cb); 2123 (void) printf(gettext("%llu filesystems upgraded\n"), 2124 cb.cb_numupgraded); 2125 if (cb.cb_numsamegraded) { 2126 (void) printf(gettext("%llu filesystems already at " 2127 "this version\n"), 2128 cb.cb_numsamegraded); 2129 } 2130 if (cb.cb_numfailed != 0) 2131 ret = 1; 2132 } else { 2133 /* List old-version filesytems */ 2134 boolean_t found; 2135 (void) printf(gettext("This system is currently running " 2136 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2137 2138 flags |= ZFS_ITER_RECURSE; 2139 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2140 NULL, NULL, 0, upgrade_list_callback, &cb); 2141 2142 found = cb.cb_foundone; 2143 cb.cb_foundone = B_FALSE; 2144 cb.cb_newer = B_TRUE; 2145 2146 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2147 NULL, NULL, 0, upgrade_list_callback, &cb); 2148 2149 if (!cb.cb_foundone && !found) { 2150 (void) printf(gettext("All filesystems are " 2151 "formatted with the current version.\n")); 2152 } 2153 } 2154 2155 return (ret); 2156} 2157 2158/* 2159 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2160 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2161 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2162 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2163 * 2164 * -H Scripted mode; elide headers and separate columns by tabs. 2165 * -i Translate SID to POSIX ID. 2166 * -n Print numeric ID instead of user/group name. 2167 * -o Control which fields to display. 2168 * -p Use exact (parsable) numeric output. 2169 * -s Specify sort columns, descending order. 2170 * -S Specify sort columns, ascending order. 2171 * -t Control which object types to display. 2172 * 2173 * Displays space consumed by, and quotas on, each user in the specified 2174 * filesystem or snapshot. 2175 */ 2176 2177/* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2178enum us_field_types { 2179 USFIELD_TYPE, 2180 USFIELD_NAME, 2181 USFIELD_USED, 2182 USFIELD_QUOTA 2183}; 2184static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2185static char *us_field_names[] = { "type", "name", "used", "quota" }; 2186#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2187 2188#define USTYPE_PSX_GRP (1 << 0) 2189#define USTYPE_PSX_USR (1 << 1) 2190#define USTYPE_SMB_GRP (1 << 2) 2191#define USTYPE_SMB_USR (1 << 3) 2192#define USTYPE_ALL \ 2193 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2194 2195static int us_type_bits[] = { 2196 USTYPE_PSX_GRP, 2197 USTYPE_PSX_USR, 2198 USTYPE_SMB_GRP, 2199 USTYPE_SMB_USR, 2200 USTYPE_ALL 2201}; 2202static char *us_type_names[] = { "posixgroup", "posxiuser", "smbgroup", 2203 "smbuser", "all" }; 2204 2205typedef struct us_node { 2206 nvlist_t *usn_nvl; 2207 uu_avl_node_t usn_avlnode; 2208 uu_list_node_t usn_listnode; 2209} us_node_t; 2210 2211typedef struct us_cbdata { 2212 nvlist_t **cb_nvlp; 2213 uu_avl_pool_t *cb_avl_pool; 2214 uu_avl_t *cb_avl; 2215 boolean_t cb_numname; 2216 boolean_t cb_nicenum; 2217 boolean_t cb_sid2posix; 2218 zfs_userquota_prop_t cb_prop; 2219 zfs_sort_column_t *cb_sortcol; 2220 size_t cb_width[USFIELD_LAST]; 2221} us_cbdata_t; 2222 2223static boolean_t us_populated = B_FALSE; 2224 2225typedef struct { 2226 zfs_sort_column_t *si_sortcol; 2227 boolean_t si_numname; 2228} us_sort_info_t; 2229 2230static int 2231us_field_index(char *field) 2232{ 2233 int i; 2234 2235 for (i = 0; i < USFIELD_LAST; i++) { 2236 if (strcmp(field, us_field_names[i]) == 0) 2237 return (i); 2238 } 2239 2240 return (-1); 2241} 2242 2243static int 2244us_compare(const void *larg, const void *rarg, void *unused) 2245{ 2246 const us_node_t *l = larg; 2247 const us_node_t *r = rarg; 2248 us_sort_info_t *si = (us_sort_info_t *)unused; 2249 zfs_sort_column_t *sortcol = si->si_sortcol; 2250 boolean_t numname = si->si_numname; 2251 nvlist_t *lnvl = l->usn_nvl; 2252 nvlist_t *rnvl = r->usn_nvl; 2253 int rc = 0; 2254 boolean_t lvb, rvb; 2255 2256 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2257 char *lvstr = ""; 2258 char *rvstr = ""; 2259 uint32_t lv32 = 0; 2260 uint32_t rv32 = 0; 2261 uint64_t lv64 = 0; 2262 uint64_t rv64 = 0; 2263 zfs_prop_t prop = sortcol->sc_prop; 2264 const char *propname = NULL; 2265 boolean_t reverse = sortcol->sc_reverse; 2266 2267 switch (prop) { 2268 case ZFS_PROP_TYPE: 2269 propname = "type"; 2270 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2271 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2272 if (rv32 != lv32) 2273 rc = (rv32 < lv32) ? 1 : -1; 2274 break; 2275 case ZFS_PROP_NAME: 2276 propname = "name"; 2277 if (numname) { 2278 (void) nvlist_lookup_uint64(lnvl, propname, 2279 &lv64); 2280 (void) nvlist_lookup_uint64(rnvl, propname, 2281 &rv64); 2282 if (rv64 != lv64) 2283 rc = (rv64 < lv64) ? 1 : -1; 2284 } else { 2285 (void) nvlist_lookup_string(lnvl, propname, 2286 &lvstr); 2287 (void) nvlist_lookup_string(rnvl, propname, 2288 &rvstr); 2289 rc = strcmp(lvstr, rvstr); 2290 } 2291 break; 2292 case ZFS_PROP_USED: 2293 case ZFS_PROP_QUOTA: 2294 if (!us_populated) 2295 break; 2296 if (prop == ZFS_PROP_USED) 2297 propname = "used"; 2298 else 2299 propname = "quota"; 2300 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2301 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2302 if (rv64 != lv64) 2303 rc = (rv64 < lv64) ? 1 : -1; 2304 break; 2305 } 2306 2307 if (rc != 0) { 2308 if (rc < 0) 2309 return (reverse ? 1 : -1); 2310 else 2311 return (reverse ? -1 : 1); 2312 } 2313 } 2314 2315 /* 2316 * If entries still seem to be the same, check if they are of the same 2317 * type (smbentity is added only if we are doing SID to POSIX ID 2318 * translation where we can have duplicate type/name combinations). 2319 */ 2320 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2321 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2322 lvb != rvb) 2323 return (lvb < rvb ? -1 : 1); 2324 2325 return (0); 2326} 2327 2328static inline const char * 2329us_type2str(unsigned field_type) 2330{ 2331 switch (field_type) { 2332 case USTYPE_PSX_USR: 2333 return ("POSIX User"); 2334 case USTYPE_PSX_GRP: 2335 return ("POSIX Group"); 2336 case USTYPE_SMB_USR: 2337 return ("SMB User"); 2338 case USTYPE_SMB_GRP: 2339 return ("SMB Group"); 2340 default: 2341 return ("Undefined"); 2342 } 2343} 2344 2345static int 2346userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2347{ 2348 us_cbdata_t *cb = (us_cbdata_t *)arg; 2349 zfs_userquota_prop_t prop = cb->cb_prop; 2350 char *name = NULL; 2351 char *propname; 2352 char sizebuf[32]; 2353 us_node_t *node; 2354 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2355 uu_avl_t *avl = cb->cb_avl; 2356 uu_avl_index_t idx; 2357 nvlist_t *props; 2358 us_node_t *n; 2359 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2360 unsigned type; 2361 const char *typestr; 2362 size_t namelen; 2363 size_t typelen; 2364 size_t sizelen; 2365 int typeidx, nameidx, sizeidx; 2366 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2367 boolean_t smbentity = B_FALSE; 2368 2369 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2370 nomem(); 2371 node = safe_malloc(sizeof (us_node_t)); 2372 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2373 node->usn_nvl = props; 2374 2375 if (domain != NULL && domain[0] != '\0') { 2376 /* SMB */ 2377 char sid[ZFS_MAXNAMELEN + 32]; 2378 uid_t id; 2379 uint64_t classes; 2380#ifdef sun 2381 int err; 2382 directory_error_t e; 2383#endif 2384 2385 smbentity = B_TRUE; 2386 2387 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2388 2389 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2390 type = USTYPE_SMB_GRP; 2391#ifdef sun 2392 err = sid_to_id(sid, B_FALSE, &id); 2393#endif 2394 } else { 2395 type = USTYPE_SMB_USR; 2396#ifdef sun 2397 err = sid_to_id(sid, B_TRUE, &id); 2398#endif 2399 } 2400 2401#ifdef sun 2402 if (err == 0) { 2403 rid = id; 2404 if (!cb->cb_sid2posix) { 2405 e = directory_name_from_sid(NULL, sid, &name, 2406 &classes); 2407 if (e != NULL) 2408 directory_error_free(e); 2409 if (name == NULL) 2410 name = sid; 2411 } 2412 } 2413#endif 2414 } 2415 2416 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2417 /* POSIX or -i */ 2418 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2419 type = USTYPE_PSX_GRP; 2420 if (!cb->cb_numname) { 2421 struct group *g; 2422 2423 if ((g = getgrgid(rid)) != NULL) 2424 name = g->gr_name; 2425 } 2426 } else { 2427 type = USTYPE_PSX_USR; 2428 if (!cb->cb_numname) { 2429 struct passwd *p; 2430 2431 if ((p = getpwuid(rid)) != NULL) 2432 name = p->pw_name; 2433 } 2434 } 2435 } 2436 2437 /* 2438 * Make sure that the type/name combination is unique when doing 2439 * SID to POSIX ID translation (hence changing the type from SMB to 2440 * POSIX). 2441 */ 2442 if (cb->cb_sid2posix && 2443 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2444 nomem(); 2445 2446 /* Calculate/update width of TYPE field */ 2447 typestr = us_type2str(type); 2448 typelen = strlen(gettext(typestr)); 2449 typeidx = us_field_index("type"); 2450 if (typelen > cb->cb_width[typeidx]) 2451 cb->cb_width[typeidx] = typelen; 2452 if (nvlist_add_uint32(props, "type", type) != 0) 2453 nomem(); 2454 2455 /* Calculate/update width of NAME field */ 2456 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2457 if (nvlist_add_uint64(props, "name", rid) != 0) 2458 nomem(); 2459 namelen = snprintf(NULL, 0, "%u", rid); 2460 } else { 2461 if (nvlist_add_string(props, "name", name) != 0) 2462 nomem(); 2463 namelen = strlen(name); 2464 } 2465 nameidx = us_field_index("name"); 2466 if (namelen > cb->cb_width[nameidx]) 2467 cb->cb_width[nameidx] = namelen; 2468 2469 /* 2470 * Check if this type/name combination is in the list and update it; 2471 * otherwise add new node to the list. 2472 */ 2473 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2474 uu_avl_insert(avl, node, idx); 2475 } else { 2476 nvlist_free(props); 2477 free(node); 2478 node = n; 2479 props = node->usn_nvl; 2480 } 2481 2482 /* Calculate/update width of USED/QUOTA fields */ 2483 if (cb->cb_nicenum) 2484 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2485 else 2486 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2487 sizelen = strlen(sizebuf); 2488 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2489 propname = "used"; 2490 if (!nvlist_exists(props, "quota")) 2491 (void) nvlist_add_uint64(props, "quota", 0); 2492 } else { 2493 propname = "quota"; 2494 if (!nvlist_exists(props, "used")) 2495 (void) nvlist_add_uint64(props, "used", 0); 2496 } 2497 sizeidx = us_field_index(propname); 2498 if (sizelen > cb->cb_width[sizeidx]) 2499 cb->cb_width[sizeidx] = sizelen; 2500 2501 if (nvlist_add_uint64(props, propname, space) != 0) 2502 nomem(); 2503 2504 return (0); 2505} 2506 2507static void 2508print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2509 size_t *width, us_node_t *node) 2510{ 2511 nvlist_t *nvl = node->usn_nvl; 2512 char valstr[ZFS_MAXNAMELEN]; 2513 boolean_t first = B_TRUE; 2514 int cfield = 0; 2515 int field; 2516 uint32_t ustype; 2517 2518 /* Check type */ 2519 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2520 if (!(ustype & types)) 2521 return; 2522 2523 while ((field = fields[cfield]) != USFIELD_LAST) { 2524 nvpair_t *nvp = NULL; 2525 data_type_t type; 2526 uint32_t val32; 2527 uint64_t val64; 2528 char *strval = NULL; 2529 2530 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2531 if (strcmp(nvpair_name(nvp), 2532 us_field_names[field]) == 0) 2533 break; 2534 } 2535 2536 type = nvpair_type(nvp); 2537 switch (type) { 2538 case DATA_TYPE_UINT32: 2539 (void) nvpair_value_uint32(nvp, &val32); 2540 break; 2541 case DATA_TYPE_UINT64: 2542 (void) nvpair_value_uint64(nvp, &val64); 2543 break; 2544 case DATA_TYPE_STRING: 2545 (void) nvpair_value_string(nvp, &strval); 2546 break; 2547 default: 2548 (void) fprintf(stderr, "invalid data type\n"); 2549 } 2550 2551 switch (field) { 2552 case USFIELD_TYPE: 2553 strval = (char *)us_type2str(val32); 2554 break; 2555 case USFIELD_NAME: 2556 if (type == DATA_TYPE_UINT64) { 2557 (void) sprintf(valstr, "%llu", val64); 2558 strval = valstr; 2559 } 2560 break; 2561 case USFIELD_USED: 2562 case USFIELD_QUOTA: 2563 if (type == DATA_TYPE_UINT64) { 2564 if (parsable) { 2565 (void) sprintf(valstr, "%llu", val64); 2566 } else { 2567 zfs_nicenum(val64, valstr, 2568 sizeof (valstr)); 2569 } 2570 if (field == USFIELD_QUOTA && 2571 strcmp(valstr, "0") == 0) 2572 strval = "none"; 2573 else 2574 strval = valstr; 2575 } 2576 break; 2577 } 2578 2579 if (!first) { 2580 if (scripted) 2581 (void) printf("\t"); 2582 else 2583 (void) printf(" "); 2584 } 2585 if (scripted) 2586 (void) printf("%s", strval); 2587 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2588 (void) printf("%-*s", width[field], strval); 2589 else 2590 (void) printf("%*s", width[field], strval); 2591 2592 first = B_FALSE; 2593 cfield++; 2594 } 2595 2596 (void) printf("\n"); 2597} 2598 2599static void 2600print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2601 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2602{ 2603 us_node_t *node; 2604 const char *col; 2605 int cfield = 0; 2606 int field; 2607 2608 if (!scripted) { 2609 boolean_t first = B_TRUE; 2610 2611 while ((field = fields[cfield]) != USFIELD_LAST) { 2612 col = gettext(us_field_hdr[field]); 2613 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2614 (void) printf(first ? "%-*s" : " %-*s", 2615 width[field], col); 2616 } else { 2617 (void) printf(first ? "%*s" : " %*s", 2618 width[field], col); 2619 } 2620 first = B_FALSE; 2621 cfield++; 2622 } 2623 (void) printf("\n"); 2624 } 2625 2626 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2627 print_us_node(scripted, parsable, fields, types, width, node); 2628 if (rmnode) 2629 nvlist_free(node->usn_nvl); 2630 } 2631} 2632 2633static int 2634zfs_do_userspace(int argc, char **argv) 2635{ 2636 zfs_handle_t *zhp; 2637 zfs_userquota_prop_t p; 2638 2639 uu_avl_pool_t *avl_pool; 2640 uu_avl_t *avl_tree; 2641 uu_avl_walk_t *walk; 2642 char *delim; 2643 char deffields[] = "type,name,used,quota"; 2644 char *ofield = NULL; 2645 char *tfield = NULL; 2646 int cfield = 0; 2647 int fields[256]; 2648 int i; 2649 boolean_t scripted = B_FALSE; 2650 boolean_t prtnum = B_FALSE; 2651 boolean_t parsable = B_FALSE; 2652 boolean_t sid2posix = B_FALSE; 2653 int ret = 0; 2654 int c; 2655 zfs_sort_column_t *sortcol = NULL; 2656 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2657 us_cbdata_t cb; 2658 us_node_t *node; 2659 us_node_t *rmnode; 2660 uu_list_pool_t *listpool; 2661 uu_list_t *list; 2662 uu_avl_index_t idx = 0; 2663 uu_list_index_t idx2 = 0; 2664 2665 if (argc < 2) 2666 usage(B_FALSE); 2667 2668 if (strcmp(argv[0], "groupspace") == 0) 2669 /* Toggle default group types */ 2670 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2671 2672 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2673 switch (c) { 2674 case 'n': 2675 prtnum = B_TRUE; 2676 break; 2677 case 'H': 2678 scripted = B_TRUE; 2679 break; 2680 case 'p': 2681 parsable = B_TRUE; 2682 break; 2683 case 'o': 2684 ofield = optarg; 2685 break; 2686 case 's': 2687 case 'S': 2688 if (zfs_add_sort_column(&sortcol, optarg, 2689 c == 's' ? B_FALSE : B_TRUE) != 0) { 2690 (void) fprintf(stderr, 2691 gettext("invalid field '%s'\n"), optarg); 2692 usage(B_FALSE); 2693 } 2694 break; 2695 case 't': 2696 tfield = optarg; 2697 break; 2698 case 'i': 2699 sid2posix = B_TRUE; 2700 break; 2701 case ':': 2702 (void) fprintf(stderr, gettext("missing argument for " 2703 "'%c' option\n"), optopt); 2704 usage(B_FALSE); 2705 break; 2706 case '?': 2707 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2708 optopt); 2709 usage(B_FALSE); 2710 } 2711 } 2712 2713 argc -= optind; 2714 argv += optind; 2715 2716 if (argc < 1) { 2717 (void) fprintf(stderr, gettext("missing dataset name\n")); 2718 usage(B_FALSE); 2719 } 2720 if (argc > 1) { 2721 (void) fprintf(stderr, gettext("too many arguments\n")); 2722 usage(B_FALSE); 2723 } 2724 2725 /* Use default output fields if not specified using -o */ 2726 if (ofield == NULL) 2727 ofield = deffields; 2728 do { 2729 if ((delim = strchr(ofield, ',')) != NULL) 2730 *delim = '\0'; 2731 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2732 (void) fprintf(stderr, gettext("invalid type '%s' " 2733 "for -o option\n"), ofield); 2734 return (-1); 2735 } 2736 if (delim != NULL) 2737 ofield = delim + 1; 2738 } while (delim != NULL); 2739 fields[cfield] = USFIELD_LAST; 2740 2741 /* Override output types (-t option) */ 2742 if (tfield != NULL) { 2743 types = 0; 2744 2745 do { 2746 boolean_t found = B_FALSE; 2747 2748 if ((delim = strchr(tfield, ',')) != NULL) 2749 *delim = '\0'; 2750 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2751 i++) { 2752 if (strcmp(tfield, us_type_names[i]) == 0) { 2753 found = B_TRUE; 2754 types |= us_type_bits[i]; 2755 break; 2756 } 2757 } 2758 if (!found) { 2759 (void) fprintf(stderr, gettext("invalid type " 2760 "'%s' for -t option\n"), tfield); 2761 return (-1); 2762 } 2763 if (delim != NULL) 2764 tfield = delim + 1; 2765 } while (delim != NULL); 2766 } 2767 2768 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2769 return (1); 2770 2771 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2772 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2773 nomem(); 2774 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2775 nomem(); 2776 2777 /* Always add default sorting columns */ 2778 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2779 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2780 2781 cb.cb_sortcol = sortcol; 2782 cb.cb_numname = prtnum; 2783 cb.cb_nicenum = !parsable; 2784 cb.cb_avl_pool = avl_pool; 2785 cb.cb_avl = avl_tree; 2786 cb.cb_sid2posix = sid2posix; 2787 2788 for (i = 0; i < USFIELD_LAST; i++) 2789 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2790 2791 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2792 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2793 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2794 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2795 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2796 continue; 2797 cb.cb_prop = p; 2798 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2799 return (ret); 2800 } 2801 2802 /* Sort the list */ 2803 if ((node = uu_avl_first(avl_tree)) == NULL) 2804 return (0); 2805 2806 us_populated = B_TRUE; 2807 2808 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2809 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2810 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2811 uu_list_node_init(node, &node->usn_listnode, listpool); 2812 2813 while (node != NULL) { 2814 rmnode = node; 2815 node = uu_avl_next(avl_tree, node); 2816 uu_avl_remove(avl_tree, rmnode); 2817 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2818 uu_list_insert(list, rmnode, idx2); 2819 } 2820 2821 for (node = uu_list_first(list); node != NULL; 2822 node = uu_list_next(list, node)) { 2823 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2824 2825 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2826 uu_avl_insert(avl_tree, node, idx); 2827 } 2828 2829 uu_list_destroy(list); 2830 uu_list_pool_destroy(listpool); 2831 2832 /* Print and free node nvlist memory */ 2833 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2834 cb.cb_avl); 2835 2836 zfs_free_sort_columns(sortcol); 2837 2838 /* Clean up the AVL tree */ 2839 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2840 nomem(); 2841 2842 while ((node = uu_avl_walk_next(walk)) != NULL) { 2843 uu_avl_remove(cb.cb_avl, node); 2844 free(node); 2845 } 2846 2847 uu_avl_walk_end(walk); 2848 uu_avl_destroy(avl_tree); 2849 uu_avl_pool_destroy(avl_pool); 2850 2851 return (ret); 2852} 2853 2854/* 2855 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2856 * [-t type[,...]] [filesystem|volume|snapshot] ... 2857 * 2858 * -H Scripted mode; elide headers and separate columns by tabs. 2859 * -p Display values in parsable (literal) format. 2860 * -r Recurse over all children. 2861 * -d Limit recursion by depth. 2862 * -o Control which fields to display. 2863 * -s Specify sort columns, descending order. 2864 * -S Specify sort columns, ascending order. 2865 * -t Control which object types to display. 2866 * 2867 * When given no arguments, list all filesystems in the system. 2868 * Otherwise, list the specified datasets, optionally recursing down them if 2869 * '-r' is specified. 2870 */ 2871typedef struct list_cbdata { 2872 boolean_t cb_first; 2873 boolean_t cb_literal; 2874 boolean_t cb_scripted; 2875 zprop_list_t *cb_proplist; 2876} list_cbdata_t; 2877 2878/* 2879 * Given a list of columns to display, output appropriate headers for each one. 2880 */ 2881static void 2882print_header(list_cbdata_t *cb) 2883{ 2884 zprop_list_t *pl = cb->cb_proplist; 2885 char headerbuf[ZFS_MAXPROPLEN]; 2886 const char *header; 2887 int i; 2888 boolean_t first = B_TRUE; 2889 boolean_t right_justify; 2890 2891 for (; pl != NULL; pl = pl->pl_next) { 2892 if (!first) { 2893 (void) printf(" "); 2894 } else { 2895 first = B_FALSE; 2896 } 2897 2898 right_justify = B_FALSE; 2899 if (pl->pl_prop != ZPROP_INVAL) { 2900 header = zfs_prop_column_name(pl->pl_prop); 2901 right_justify = zfs_prop_align_right(pl->pl_prop); 2902 } else { 2903 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2904 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2905 headerbuf[i] = '\0'; 2906 header = headerbuf; 2907 } 2908 2909 if (pl->pl_next == NULL && !right_justify) 2910 (void) printf("%s", header); 2911 else if (right_justify) 2912 (void) printf("%*s", pl->pl_width, header); 2913 else 2914 (void) printf("%-*s", pl->pl_width, header); 2915 } 2916 2917 (void) printf("\n"); 2918} 2919 2920/* 2921 * Given a dataset and a list of fields, print out all the properties according 2922 * to the described layout. 2923 */ 2924static void 2925print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2926{ 2927 zprop_list_t *pl = cb->cb_proplist; 2928 boolean_t first = B_TRUE; 2929 char property[ZFS_MAXPROPLEN]; 2930 nvlist_t *userprops = zfs_get_user_props(zhp); 2931 nvlist_t *propval; 2932 char *propstr; 2933 boolean_t right_justify; 2934 2935 for (; pl != NULL; pl = pl->pl_next) { 2936 if (!first) { 2937 if (cb->cb_scripted) 2938 (void) printf("\t"); 2939 else 2940 (void) printf(" "); 2941 } else { 2942 first = B_FALSE; 2943 } 2944 2945 if (pl->pl_prop == ZFS_PROP_NAME) { 2946 (void) strlcpy(property, zfs_get_name(zhp), 2947 sizeof(property)); 2948 propstr = property; 2949 right_justify = zfs_prop_align_right(pl->pl_prop); 2950 } else if (pl->pl_prop != ZPROP_INVAL) { 2951 if (zfs_prop_get(zhp, pl->pl_prop, property, 2952 sizeof (property), NULL, NULL, 0, 2953 cb->cb_literal) != 0) 2954 propstr = "-"; 2955 else 2956 propstr = property; 2957 right_justify = zfs_prop_align_right(pl->pl_prop); 2958 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2959 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2960 property, sizeof (property), cb->cb_literal) != 0) 2961 propstr = "-"; 2962 else 2963 propstr = property; 2964 right_justify = B_TRUE; 2965 } else if (zfs_prop_written(pl->pl_user_prop)) { 2966 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2967 property, sizeof (property), cb->cb_literal) != 0) 2968 propstr = "-"; 2969 else 2970 propstr = property; 2971 right_justify = B_TRUE; 2972 } else { 2973 if (nvlist_lookup_nvlist(userprops, 2974 pl->pl_user_prop, &propval) != 0) 2975 propstr = "-"; 2976 else 2977 verify(nvlist_lookup_string(propval, 2978 ZPROP_VALUE, &propstr) == 0); 2979 right_justify = B_FALSE; 2980 } 2981 2982 /* 2983 * If this is being called in scripted mode, or if this is the 2984 * last column and it is left-justified, don't include a width 2985 * format specifier. 2986 */ 2987 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 2988 (void) printf("%s", propstr); 2989 else if (right_justify) 2990 (void) printf("%*s", pl->pl_width, propstr); 2991 else 2992 (void) printf("%-*s", pl->pl_width, propstr); 2993 } 2994 2995 (void) printf("\n"); 2996} 2997 2998/* 2999 * Generic callback function to list a dataset or snapshot. 3000 */ 3001static int 3002list_callback(zfs_handle_t *zhp, void *data) 3003{ 3004 list_cbdata_t *cbp = data; 3005 3006 if (cbp->cb_first) { 3007 if (!cbp->cb_scripted) 3008 print_header(cbp); 3009 cbp->cb_first = B_FALSE; 3010 } 3011 3012 print_dataset(zhp, cbp); 3013 3014 return (0); 3015} 3016 3017static int 3018zfs_do_list(int argc, char **argv) 3019{ 3020 int c; 3021 static char default_fields[] = 3022 "name,used,available,referenced,mountpoint"; 3023 int types = ZFS_TYPE_DATASET; 3024 boolean_t types_specified = B_FALSE; 3025 char *fields = NULL; 3026 list_cbdata_t cb = { 0 }; 3027 char *value; 3028 int limit = 0; 3029 int ret = 0; 3030 zfs_sort_column_t *sortcol = NULL; 3031 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3032 3033 /* check options */ 3034 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3035 switch (c) { 3036 case 'o': 3037 fields = optarg; 3038 break; 3039 case 'p': 3040 cb.cb_literal = B_TRUE; 3041 flags |= ZFS_ITER_LITERAL_PROPS; 3042 break; 3043 case 'd': 3044 limit = parse_depth(optarg, &flags); 3045 break; 3046 case 'r': 3047 flags |= ZFS_ITER_RECURSE; 3048 break; 3049 case 'H': 3050 cb.cb_scripted = B_TRUE; 3051 break; 3052 case 's': 3053 if (zfs_add_sort_column(&sortcol, optarg, 3054 B_FALSE) != 0) { 3055 (void) fprintf(stderr, 3056 gettext("invalid property '%s'\n"), optarg); 3057 usage(B_FALSE); 3058 } 3059 break; 3060 case 'S': 3061 if (zfs_add_sort_column(&sortcol, optarg, 3062 B_TRUE) != 0) { 3063 (void) fprintf(stderr, 3064 gettext("invalid property '%s'\n"), optarg); 3065 usage(B_FALSE); 3066 } 3067 break; 3068 case 't': 3069 types = 0; 3070 types_specified = B_TRUE; 3071 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3072 while (*optarg != '\0') { 3073 static char *type_subopts[] = { "filesystem", 3074 "volume", "snapshot", "snap", "bookmark", 3075 "all", NULL }; 3076 3077 switch (getsubopt(&optarg, type_subopts, 3078 &value)) { 3079 case 0: 3080 types |= ZFS_TYPE_FILESYSTEM; 3081 break; 3082 case 1: 3083 types |= ZFS_TYPE_VOLUME; 3084 break; 3085 case 2: 3086 case 3: 3087 types |= ZFS_TYPE_SNAPSHOT; 3088 break; 3089 case 4: 3090 types |= ZFS_TYPE_BOOKMARK; 3091 break; 3092 case 5: 3093 types = ZFS_TYPE_DATASET | 3094 ZFS_TYPE_BOOKMARK; 3095 break; 3096 default: 3097 (void) fprintf(stderr, 3098 gettext("invalid type '%s'\n"), 3099 value); 3100 usage(B_FALSE); 3101 } 3102 } 3103 break; 3104 case ':': 3105 (void) fprintf(stderr, gettext("missing argument for " 3106 "'%c' option\n"), optopt); 3107 usage(B_FALSE); 3108 break; 3109 case '?': 3110 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3111 optopt); 3112 usage(B_FALSE); 3113 } 3114 } 3115 3116 argc -= optind; 3117 argv += optind; 3118 3119 if (fields == NULL) 3120 fields = default_fields; 3121 3122 /* 3123 * If we are only going to list snapshot names and sort by name, 3124 * then we can use faster version. 3125 */ 3126 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3127 flags |= ZFS_ITER_SIMPLE; 3128 3129 /* 3130 * If "-o space" and no types were specified, don't display snapshots. 3131 */ 3132 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3133 types &= ~ZFS_TYPE_SNAPSHOT; 3134 3135 /* 3136 * If the user specifies '-o all', the zprop_get_list() doesn't 3137 * normally include the name of the dataset. For 'zfs list', we always 3138 * want this property to be first. 3139 */ 3140 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3141 != 0) 3142 usage(B_FALSE); 3143 3144 cb.cb_first = B_TRUE; 3145 3146 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3147 limit, list_callback, &cb); 3148 3149 zprop_free_list(cb.cb_proplist); 3150 zfs_free_sort_columns(sortcol); 3151 3152 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3153 (void) printf(gettext("no datasets available\n")); 3154 3155 return (ret); 3156} 3157 3158/* 3159 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3160 * zfs rename [-f] -p <fs | vol> <fs | vol> 3161 * zfs rename -r <snap> <snap> 3162 * zfs rename -u [-p] <fs> <fs> 3163 * 3164 * Renames the given dataset to another of the same type. 3165 * 3166 * The '-p' flag creates all the non-existing ancestors of the target first. 3167 */ 3168/* ARGSUSED */ 3169static int 3170zfs_do_rename(int argc, char **argv) 3171{ 3172 zfs_handle_t *zhp; 3173 renameflags_t flags = { 0 }; 3174 int c; 3175 int ret = 0; 3176 int types; 3177 boolean_t parents = B_FALSE; 3178 char *snapshot = NULL; 3179 3180 /* check options */ 3181 while ((c = getopt(argc, argv, "fpru")) != -1) { 3182 switch (c) { 3183 case 'p': 3184 parents = B_TRUE; 3185 break; 3186 case 'r': 3187 flags.recurse = B_TRUE; 3188 break; 3189 case 'u': 3190 flags.nounmount = B_TRUE; 3191 break; 3192 case 'f': 3193 flags.forceunmount = B_TRUE; 3194 break; 3195 case '?': 3196 default: 3197 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3198 optopt); 3199 usage(B_FALSE); 3200 } 3201 } 3202 3203 argc -= optind; 3204 argv += optind; 3205 3206 /* check number of arguments */ 3207 if (argc < 1) { 3208 (void) fprintf(stderr, gettext("missing source dataset " 3209 "argument\n")); 3210 usage(B_FALSE); 3211 } 3212 if (argc < 2) { 3213 (void) fprintf(stderr, gettext("missing target dataset " 3214 "argument\n")); 3215 usage(B_FALSE); 3216 } 3217 if (argc > 2) { 3218 (void) fprintf(stderr, gettext("too many arguments\n")); 3219 usage(B_FALSE); 3220 } 3221 3222 if (flags.recurse && parents) { 3223 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3224 "exclusive\n")); 3225 usage(B_FALSE); 3226 } 3227 3228 if (flags.recurse && strchr(argv[0], '@') == 0) { 3229 (void) fprintf(stderr, gettext("source dataset for recursive " 3230 "rename must be a snapshot\n")); 3231 usage(B_FALSE); 3232 } 3233 3234 if (flags.nounmount && parents) { 3235 (void) fprintf(stderr, gettext("-u and -r options are mutually " 3236 "exclusive\n")); 3237 usage(B_FALSE); 3238 } 3239 3240 if (flags.nounmount) 3241 types = ZFS_TYPE_FILESYSTEM; 3242 else if (parents) 3243 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3244 else 3245 types = ZFS_TYPE_DATASET; 3246 3247 if (flags.recurse) { 3248 /* 3249 * When we do recursive rename we are fine when the given 3250 * snapshot for the given dataset doesn't exist - it can 3251 * still exists below. 3252 */ 3253 3254 snapshot = strchr(argv[0], '@'); 3255 assert(snapshot != NULL); 3256 *snapshot = '\0'; 3257 snapshot++; 3258 } 3259 3260 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3261 return (1); 3262 3263 /* If we were asked and the name looks good, try to create ancestors. */ 3264 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3265 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3266 zfs_close(zhp); 3267 return (1); 3268 } 3269 3270 ret = (zfs_rename(zhp, snapshot, argv[1], flags) != 0); 3271 3272 zfs_close(zhp); 3273 return (ret); 3274} 3275 3276/* 3277 * zfs promote <fs> 3278 * 3279 * Promotes the given clone fs to be the parent 3280 */ 3281/* ARGSUSED */ 3282static int 3283zfs_do_promote(int argc, char **argv) 3284{ 3285 zfs_handle_t *zhp; 3286 int ret = 0; 3287 3288 /* check options */ 3289 if (argc > 1 && argv[1][0] == '-') { 3290 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3291 argv[1][1]); 3292 usage(B_FALSE); 3293 } 3294 3295 /* check number of arguments */ 3296 if (argc < 2) { 3297 (void) fprintf(stderr, gettext("missing clone filesystem" 3298 " argument\n")); 3299 usage(B_FALSE); 3300 } 3301 if (argc > 2) { 3302 (void) fprintf(stderr, gettext("too many arguments\n")); 3303 usage(B_FALSE); 3304 } 3305 3306 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3307 if (zhp == NULL) 3308 return (1); 3309 3310 ret = (zfs_promote(zhp) != 0); 3311 3312 3313 zfs_close(zhp); 3314 return (ret); 3315} 3316 3317/* 3318 * zfs rollback [-rRf] <snapshot> 3319 * 3320 * -r Delete any intervening snapshots before doing rollback 3321 * -R Delete any snapshots and their clones 3322 * -f ignored for backwards compatability 3323 * 3324 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3325 * since then and making it the active dataset. If more recent snapshots exist, 3326 * the command will complain unless the '-r' flag is given. 3327 */ 3328typedef struct rollback_cbdata { 3329 uint64_t cb_create; 3330 boolean_t cb_first; 3331 int cb_doclones; 3332 char *cb_target; 3333 int cb_error; 3334 boolean_t cb_recurse; 3335} rollback_cbdata_t; 3336 3337static int 3338rollback_check_dependent(zfs_handle_t *zhp, void *data) 3339{ 3340 rollback_cbdata_t *cbp = data; 3341 3342 if (cbp->cb_first && cbp->cb_recurse) { 3343 (void) fprintf(stderr, gettext("cannot rollback to " 3344 "'%s': clones of previous snapshots exist\n"), 3345 cbp->cb_target); 3346 (void) fprintf(stderr, gettext("use '-R' to " 3347 "force deletion of the following clones and " 3348 "dependents:\n")); 3349 cbp->cb_first = 0; 3350 cbp->cb_error = 1; 3351 } 3352 3353 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3354 3355 zfs_close(zhp); 3356 return (0); 3357} 3358/* 3359 * Report any snapshots more recent than the one specified. Used when '-r' is 3360 * not specified. We reuse this same callback for the snapshot dependents - if 3361 * 'cb_dependent' is set, then this is a dependent and we should report it 3362 * without checking the transaction group. 3363 */ 3364static int 3365rollback_check(zfs_handle_t *zhp, void *data) 3366{ 3367 rollback_cbdata_t *cbp = data; 3368 3369 if (cbp->cb_doclones) { 3370 zfs_close(zhp); 3371 return (0); 3372 } 3373 3374 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3375 if (cbp->cb_first && !cbp->cb_recurse) { 3376 (void) fprintf(stderr, gettext("cannot " 3377 "rollback to '%s': more recent snapshots " 3378 "or bookmarks exist\n"), 3379 cbp->cb_target); 3380 (void) fprintf(stderr, gettext("use '-r' to " 3381 "force deletion of the following " 3382 "snapshots and bookmarks:\n")); 3383 cbp->cb_first = 0; 3384 cbp->cb_error = 1; 3385 } 3386 3387 if (cbp->cb_recurse) { 3388 if (zfs_iter_dependents(zhp, B_TRUE, 3389 rollback_check_dependent, cbp) != 0) { 3390 zfs_close(zhp); 3391 return (-1); 3392 } 3393 } else { 3394 (void) fprintf(stderr, "%s\n", 3395 zfs_get_name(zhp)); 3396 } 3397 } 3398 zfs_close(zhp); 3399 return (0); 3400} 3401 3402static int 3403zfs_do_rollback(int argc, char **argv) 3404{ 3405 int ret = 0; 3406 int c; 3407 boolean_t force = B_FALSE; 3408 rollback_cbdata_t cb = { 0 }; 3409 zfs_handle_t *zhp, *snap; 3410 char parentname[ZFS_MAXNAMELEN]; 3411 char *delim; 3412 3413 /* check options */ 3414 while ((c = getopt(argc, argv, "rRf")) != -1) { 3415 switch (c) { 3416 case 'r': 3417 cb.cb_recurse = 1; 3418 break; 3419 case 'R': 3420 cb.cb_recurse = 1; 3421 cb.cb_doclones = 1; 3422 break; 3423 case 'f': 3424 force = B_TRUE; 3425 break; 3426 case '?': 3427 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3428 optopt); 3429 usage(B_FALSE); 3430 } 3431 } 3432 3433 argc -= optind; 3434 argv += optind; 3435 3436 /* check number of arguments */ 3437 if (argc < 1) { 3438 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3439 usage(B_FALSE); 3440 } 3441 if (argc > 1) { 3442 (void) fprintf(stderr, gettext("too many arguments\n")); 3443 usage(B_FALSE); 3444 } 3445 3446 /* open the snapshot */ 3447 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3448 return (1); 3449 3450 /* open the parent dataset */ 3451 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3452 verify((delim = strrchr(parentname, '@')) != NULL); 3453 *delim = '\0'; 3454 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3455 zfs_close(snap); 3456 return (1); 3457 } 3458 3459 /* 3460 * Check for more recent snapshots and/or clones based on the presence 3461 * of '-r' and '-R'. 3462 */ 3463 cb.cb_target = argv[0]; 3464 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3465 cb.cb_first = B_TRUE; 3466 cb.cb_error = 0; 3467 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3468 goto out; 3469 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3470 goto out; 3471 3472 if ((ret = cb.cb_error) != 0) 3473 goto out; 3474 3475 /* 3476 * Rollback parent to the given snapshot. 3477 */ 3478 ret = zfs_rollback(zhp, snap, force); 3479 3480out: 3481 zfs_close(snap); 3482 zfs_close(zhp); 3483 3484 if (ret == 0) 3485 return (0); 3486 else 3487 return (1); 3488} 3489 3490/* 3491 * zfs set property=value { fs | snap | vol } ... 3492 * 3493 * Sets the given property for all datasets specified on the command line. 3494 */ 3495typedef struct set_cbdata { 3496 char *cb_propname; 3497 char *cb_value; 3498} set_cbdata_t; 3499 3500static int 3501set_callback(zfs_handle_t *zhp, void *data) 3502{ 3503 set_cbdata_t *cbp = data; 3504 3505 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3506 switch (libzfs_errno(g_zfs)) { 3507 case EZFS_MOUNTFAILED: 3508 (void) fprintf(stderr, gettext("property may be set " 3509 "but unable to remount filesystem\n")); 3510 break; 3511 case EZFS_SHARENFSFAILED: 3512 (void) fprintf(stderr, gettext("property may be set " 3513 "but unable to reshare filesystem\n")); 3514 break; 3515 } 3516 return (1); 3517 } 3518 return (0); 3519} 3520 3521static int 3522zfs_do_set(int argc, char **argv) 3523{ 3524 set_cbdata_t cb; 3525 int ret = 0; 3526 3527 /* check for options */ 3528 if (argc > 1 && argv[1][0] == '-') { 3529 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3530 argv[1][1]); 3531 usage(B_FALSE); 3532 } 3533 3534 /* check number of arguments */ 3535 if (argc < 2) { 3536 (void) fprintf(stderr, gettext("missing property=value " 3537 "argument\n")); 3538 usage(B_FALSE); 3539 } 3540 if (argc < 3) { 3541 (void) fprintf(stderr, gettext("missing dataset name\n")); 3542 usage(B_FALSE); 3543 } 3544 3545 /* validate property=value argument */ 3546 cb.cb_propname = argv[1]; 3547 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3548 (cb.cb_value[1] == '\0')) { 3549 (void) fprintf(stderr, gettext("missing value in " 3550 "property=value argument\n")); 3551 usage(B_FALSE); 3552 } 3553 3554 *cb.cb_value = '\0'; 3555 cb.cb_value++; 3556 3557 if (*cb.cb_propname == '\0') { 3558 (void) fprintf(stderr, 3559 gettext("missing property in property=value argument\n")); 3560 usage(B_FALSE); 3561 } 3562 3563 ret = zfs_for_each(argc - 2, argv + 2, 0, 3564 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3565 3566 return (ret); 3567} 3568 3569typedef struct snap_cbdata { 3570 nvlist_t *sd_nvl; 3571 boolean_t sd_recursive; 3572 const char *sd_snapname; 3573} snap_cbdata_t; 3574 3575static int 3576zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3577{ 3578 snap_cbdata_t *sd = arg; 3579 char *name; 3580 int rv = 0; 3581 int error; 3582 3583 if (sd->sd_recursive && 3584 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3585 zfs_close(zhp); 3586 return (0); 3587 } 3588 3589 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3590 if (error == -1) 3591 nomem(); 3592 fnvlist_add_boolean(sd->sd_nvl, name); 3593 free(name); 3594 3595 if (sd->sd_recursive) 3596 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3597 zfs_close(zhp); 3598 return (rv); 3599} 3600 3601/* 3602 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3603 * 3604 * Creates a snapshot with the given name. While functionally equivalent to 3605 * 'zfs create', it is a separate command to differentiate intent. 3606 */ 3607static int 3608zfs_do_snapshot(int argc, char **argv) 3609{ 3610 int ret = 0; 3611 char c; 3612 nvlist_t *props; 3613 snap_cbdata_t sd = { 0 }; 3614 boolean_t multiple_snaps = B_FALSE; 3615 3616 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3617 nomem(); 3618 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3619 nomem(); 3620 3621 /* check options */ 3622 while ((c = getopt(argc, argv, "ro:")) != -1) { 3623 switch (c) { 3624 case 'o': 3625 if (parseprop(props, optarg)) 3626 return (1); 3627 break; 3628 case 'r': 3629 sd.sd_recursive = B_TRUE; 3630 multiple_snaps = B_TRUE; 3631 break; 3632 case '?': 3633 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3634 optopt); 3635 goto usage; 3636 } 3637 } 3638 3639 argc -= optind; 3640 argv += optind; 3641 3642 /* check number of arguments */ 3643 if (argc < 1) { 3644 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3645 goto usage; 3646 } 3647 3648 if (argc > 1) 3649 multiple_snaps = B_TRUE; 3650 for (; argc > 0; argc--, argv++) { 3651 char *atp; 3652 zfs_handle_t *zhp; 3653 3654 atp = strchr(argv[0], '@'); 3655 if (atp == NULL) 3656 goto usage; 3657 *atp = '\0'; 3658 sd.sd_snapname = atp + 1; 3659 zhp = zfs_open(g_zfs, argv[0], 3660 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3661 if (zhp == NULL) 3662 goto usage; 3663 if (zfs_snapshot_cb(zhp, &sd) != 0) 3664 goto usage; 3665 } 3666 3667 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3668 nvlist_free(sd.sd_nvl); 3669 nvlist_free(props); 3670 if (ret != 0 && multiple_snaps) 3671 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3672 return (ret != 0); 3673 3674usage: 3675 nvlist_free(sd.sd_nvl); 3676 nvlist_free(props); 3677 usage(B_FALSE); 3678 return (-1); 3679} 3680 3681/* 3682 * Send a backup stream to stdout. 3683 */ 3684static int 3685zfs_do_send(int argc, char **argv) 3686{ 3687 char *fromname = NULL; 3688 char *toname = NULL; 3689 char *cp; 3690 zfs_handle_t *zhp; 3691 sendflags_t flags = { 0 }; 3692 int c, err; 3693 nvlist_t *dbgnv = NULL; 3694 boolean_t extraverbose = B_FALSE; 3695 3696 /* check options */ 3697 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) { 3698 switch (c) { 3699 case 'i': 3700 if (fromname) 3701 usage(B_FALSE); 3702 fromname = optarg; 3703 break; 3704 case 'I': 3705 if (fromname) 3706 usage(B_FALSE); 3707 fromname = optarg; 3708 flags.doall = B_TRUE; 3709 break; 3710 case 'R': 3711 flags.replicate = B_TRUE; 3712 break; 3713 case 'p': 3714 flags.props = B_TRUE; 3715 break; 3716 case 'P': 3717 flags.parsable = B_TRUE; 3718 flags.verbose = B_TRUE; 3719 break; 3720 case 'v': 3721 if (flags.verbose) 3722 extraverbose = B_TRUE; 3723 flags.verbose = B_TRUE; 3724 flags.progress = B_TRUE; 3725 break; 3726 case 'D': 3727 flags.dedup = B_TRUE; 3728 break; 3729 case 'n': 3730 flags.dryrun = B_TRUE; 3731 break; 3732 case ':': 3733 (void) fprintf(stderr, gettext("missing argument for " 3734 "'%c' option\n"), optopt); 3735 usage(B_FALSE); 3736 break; 3737 case '?': 3738 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3739 optopt); 3740 usage(B_FALSE); 3741 } 3742 } 3743 3744 argc -= optind; 3745 argv += optind; 3746 3747 /* check number of arguments */ 3748 if (argc < 1) { 3749 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3750 usage(B_FALSE); 3751 } 3752 if (argc > 1) { 3753 (void) fprintf(stderr, gettext("too many arguments\n")); 3754 usage(B_FALSE); 3755 } 3756 3757 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3758 (void) fprintf(stderr, 3759 gettext("Error: Stream can not be written to a terminal.\n" 3760 "You must redirect standard output.\n")); 3761 return (1); 3762 } 3763 3764 /* 3765 * Special case sending a filesystem, or from a bookmark. 3766 */ 3767 if (strchr(argv[0], '@') == NULL || 3768 (fromname && strchr(fromname, '#') != NULL)) { 3769 char frombuf[ZFS_MAXNAMELEN]; 3770 3771 if (flags.replicate || flags.doall || flags.props || 3772 flags.dedup || flags.dryrun || flags.verbose || 3773 flags.progress) { 3774 (void) fprintf(stderr, 3775 gettext("Error: " 3776 "Unsupported flag with filesystem or bookmark.\n")); 3777 return (1); 3778 } 3779 3780 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3781 if (zhp == NULL) 3782 return (1); 3783 3784 if (fromname != NULL && 3785 (fromname[0] == '#' || fromname[0] == '@')) { 3786 /* 3787 * Incremental source name begins with # or @. 3788 * Default to same fs as target. 3789 */ 3790 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3791 cp = strchr(frombuf, '@'); 3792 if (cp != NULL) 3793 *cp = '\0'; 3794 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3795 fromname = frombuf; 3796 } 3797 err = zfs_send_one(zhp, fromname, STDOUT_FILENO); 3798 zfs_close(zhp); 3799 return (err != 0); 3800 } 3801 3802 cp = strchr(argv[0], '@'); 3803 *cp = '\0'; 3804 toname = cp + 1; 3805 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3806 if (zhp == NULL) 3807 return (1); 3808 3809 /* 3810 * If they specified the full path to the snapshot, chop off 3811 * everything except the short name of the snapshot, but special 3812 * case if they specify the origin. 3813 */ 3814 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3815 char origin[ZFS_MAXNAMELEN]; 3816 zprop_source_t src; 3817 3818 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3819 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3820 3821 if (strcmp(origin, fromname) == 0) { 3822 fromname = NULL; 3823 flags.fromorigin = B_TRUE; 3824 } else { 3825 *cp = '\0'; 3826 if (cp != fromname && strcmp(argv[0], fromname)) { 3827 (void) fprintf(stderr, 3828 gettext("incremental source must be " 3829 "in same filesystem\n")); 3830 usage(B_FALSE); 3831 } 3832 fromname = cp + 1; 3833 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3834 (void) fprintf(stderr, 3835 gettext("invalid incremental source\n")); 3836 usage(B_FALSE); 3837 } 3838 } 3839 } 3840 3841 if (flags.replicate && fromname == NULL) 3842 flags.doall = B_TRUE; 3843 3844 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3845 extraverbose ? &dbgnv : NULL); 3846 3847 if (extraverbose && dbgnv != NULL) { 3848 /* 3849 * dump_nvlist prints to stdout, but that's been 3850 * redirected to a file. Make it print to stderr 3851 * instead. 3852 */ 3853 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3854 dump_nvlist(dbgnv, 0); 3855 nvlist_free(dbgnv); 3856 } 3857 zfs_close(zhp); 3858 3859 return (err != 0); 3860} 3861 3862/* 3863 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3864 * 3865 * Restore a backup stream from stdin. 3866 */ 3867static int 3868zfs_do_receive(int argc, char **argv) 3869{ 3870 int c, err; 3871 recvflags_t flags = { 0 }; 3872 3873 /* check options */ 3874 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3875 switch (c) { 3876 case 'd': 3877 flags.isprefix = B_TRUE; 3878 break; 3879 case 'e': 3880 flags.isprefix = B_TRUE; 3881 flags.istail = B_TRUE; 3882 break; 3883 case 'n': 3884 flags.dryrun = B_TRUE; 3885 break; 3886 case 'u': 3887 flags.nomount = B_TRUE; 3888 break; 3889 case 'v': 3890 flags.verbose = B_TRUE; 3891 break; 3892 case 'F': 3893 flags.force = B_TRUE; 3894 break; 3895 case ':': 3896 (void) fprintf(stderr, gettext("missing argument for " 3897 "'%c' option\n"), optopt); 3898 usage(B_FALSE); 3899 break; 3900 case '?': 3901 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3902 optopt); 3903 usage(B_FALSE); 3904 } 3905 } 3906 3907 argc -= optind; 3908 argv += optind; 3909 3910 /* check number of arguments */ 3911 if (argc < 1) { 3912 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3913 usage(B_FALSE); 3914 } 3915 if (argc > 1) { 3916 (void) fprintf(stderr, gettext("too many arguments\n")); 3917 usage(B_FALSE); 3918 } 3919 3920 if (isatty(STDIN_FILENO)) { 3921 (void) fprintf(stderr, 3922 gettext("Error: Backup stream can not be read " 3923 "from a terminal.\n" 3924 "You must redirect standard input.\n")); 3925 return (1); 3926 } 3927 3928 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3929 3930 return (err != 0); 3931} 3932 3933/* 3934 * allow/unallow stuff 3935 */ 3936/* copied from zfs/sys/dsl_deleg.h */ 3937#define ZFS_DELEG_PERM_CREATE "create" 3938#define ZFS_DELEG_PERM_DESTROY "destroy" 3939#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3940#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3941#define ZFS_DELEG_PERM_CLONE "clone" 3942#define ZFS_DELEG_PERM_PROMOTE "promote" 3943#define ZFS_DELEG_PERM_RENAME "rename" 3944#define ZFS_DELEG_PERM_MOUNT "mount" 3945#define ZFS_DELEG_PERM_SHARE "share" 3946#define ZFS_DELEG_PERM_SEND "send" 3947#define ZFS_DELEG_PERM_RECEIVE "receive" 3948#define ZFS_DELEG_PERM_ALLOW "allow" 3949#define ZFS_DELEG_PERM_USERPROP "userprop" 3950#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3951#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3952#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3953#define ZFS_DELEG_PERM_USERUSED "userused" 3954#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3955#define ZFS_DELEG_PERM_HOLD "hold" 3956#define ZFS_DELEG_PERM_RELEASE "release" 3957#define ZFS_DELEG_PERM_DIFF "diff" 3958#define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3959 3960#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3961 3962static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3963 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3964 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3965 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3966 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3967 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3968 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3969 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3970 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3971 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3972 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3973 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3974 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3975 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3976 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3977 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3978 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 3979 3980 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3981 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3982 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3983 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3984 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3985 { NULL, ZFS_DELEG_NOTE_NONE } 3986}; 3987 3988/* permission structure */ 3989typedef struct deleg_perm { 3990 zfs_deleg_who_type_t dp_who_type; 3991 const char *dp_name; 3992 boolean_t dp_local; 3993 boolean_t dp_descend; 3994} deleg_perm_t; 3995 3996/* */ 3997typedef struct deleg_perm_node { 3998 deleg_perm_t dpn_perm; 3999 4000 uu_avl_node_t dpn_avl_node; 4001} deleg_perm_node_t; 4002 4003typedef struct fs_perm fs_perm_t; 4004 4005/* permissions set */ 4006typedef struct who_perm { 4007 zfs_deleg_who_type_t who_type; 4008 const char *who_name; /* id */ 4009 char who_ug_name[256]; /* user/group name */ 4010 fs_perm_t *who_fsperm; /* uplink */ 4011 4012 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4013} who_perm_t; 4014 4015/* */ 4016typedef struct who_perm_node { 4017 who_perm_t who_perm; 4018 uu_avl_node_t who_avl_node; 4019} who_perm_node_t; 4020 4021typedef struct fs_perm_set fs_perm_set_t; 4022/* fs permissions */ 4023struct fs_perm { 4024 const char *fsp_name; 4025 4026 uu_avl_t *fsp_sc_avl; /* sets,create */ 4027 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4028 4029 fs_perm_set_t *fsp_set; /* uplink */ 4030}; 4031 4032/* */ 4033typedef struct fs_perm_node { 4034 fs_perm_t fspn_fsperm; 4035 uu_avl_t *fspn_avl; 4036 4037 uu_list_node_t fspn_list_node; 4038} fs_perm_node_t; 4039 4040/* top level structure */ 4041struct fs_perm_set { 4042 uu_list_pool_t *fsps_list_pool; 4043 uu_list_t *fsps_list; /* list of fs_perms */ 4044 4045 uu_avl_pool_t *fsps_named_set_avl_pool; 4046 uu_avl_pool_t *fsps_who_perm_avl_pool; 4047 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4048}; 4049 4050static inline const char * 4051deleg_perm_type(zfs_deleg_note_t note) 4052{ 4053 /* subcommands */ 4054 switch (note) { 4055 /* SUBCOMMANDS */ 4056 /* OTHER */ 4057 case ZFS_DELEG_NOTE_GROUPQUOTA: 4058 case ZFS_DELEG_NOTE_GROUPUSED: 4059 case ZFS_DELEG_NOTE_USERPROP: 4060 case ZFS_DELEG_NOTE_USERQUOTA: 4061 case ZFS_DELEG_NOTE_USERUSED: 4062 /* other */ 4063 return (gettext("other")); 4064 default: 4065 return (gettext("subcommand")); 4066 } 4067} 4068 4069static int inline 4070who_type2weight(zfs_deleg_who_type_t who_type) 4071{ 4072 int res; 4073 switch (who_type) { 4074 case ZFS_DELEG_NAMED_SET_SETS: 4075 case ZFS_DELEG_NAMED_SET: 4076 res = 0; 4077 break; 4078 case ZFS_DELEG_CREATE_SETS: 4079 case ZFS_DELEG_CREATE: 4080 res = 1; 4081 break; 4082 case ZFS_DELEG_USER_SETS: 4083 case ZFS_DELEG_USER: 4084 res = 2; 4085 break; 4086 case ZFS_DELEG_GROUP_SETS: 4087 case ZFS_DELEG_GROUP: 4088 res = 3; 4089 break; 4090 case ZFS_DELEG_EVERYONE_SETS: 4091 case ZFS_DELEG_EVERYONE: 4092 res = 4; 4093 break; 4094 default: 4095 res = -1; 4096 } 4097 4098 return (res); 4099} 4100 4101/* ARGSUSED */ 4102static int 4103who_perm_compare(const void *larg, const void *rarg, void *unused) 4104{ 4105 const who_perm_node_t *l = larg; 4106 const who_perm_node_t *r = rarg; 4107 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4108 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4109 int lweight = who_type2weight(ltype); 4110 int rweight = who_type2weight(rtype); 4111 int res = lweight - rweight; 4112 if (res == 0) 4113 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4114 ZFS_MAX_DELEG_NAME-1); 4115 4116 if (res == 0) 4117 return (0); 4118 if (res > 0) 4119 return (1); 4120 else 4121 return (-1); 4122} 4123 4124/* ARGSUSED */ 4125static int 4126deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4127{ 4128 const deleg_perm_node_t *l = larg; 4129 const deleg_perm_node_t *r = rarg; 4130 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4131 ZFS_MAX_DELEG_NAME-1); 4132 4133 if (res == 0) 4134 return (0); 4135 4136 if (res > 0) 4137 return (1); 4138 else 4139 return (-1); 4140} 4141 4142static inline void 4143fs_perm_set_init(fs_perm_set_t *fspset) 4144{ 4145 bzero(fspset, sizeof (fs_perm_set_t)); 4146 4147 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4148 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4149 NULL, UU_DEFAULT)) == NULL) 4150 nomem(); 4151 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4152 UU_DEFAULT)) == NULL) 4153 nomem(); 4154 4155 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4156 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4157 who_perm_node_t, who_avl_node), who_perm_compare, 4158 UU_DEFAULT)) == NULL) 4159 nomem(); 4160 4161 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4162 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4163 who_perm_node_t, who_avl_node), who_perm_compare, 4164 UU_DEFAULT)) == NULL) 4165 nomem(); 4166 4167 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4168 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4169 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4170 == NULL) 4171 nomem(); 4172} 4173 4174static inline void fs_perm_fini(fs_perm_t *); 4175static inline void who_perm_fini(who_perm_t *); 4176 4177static inline void 4178fs_perm_set_fini(fs_perm_set_t *fspset) 4179{ 4180 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4181 4182 while (node != NULL) { 4183 fs_perm_node_t *next_node = 4184 uu_list_next(fspset->fsps_list, node); 4185 fs_perm_t *fsperm = &node->fspn_fsperm; 4186 fs_perm_fini(fsperm); 4187 uu_list_remove(fspset->fsps_list, node); 4188 free(node); 4189 node = next_node; 4190 } 4191 4192 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4193 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4194 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4195} 4196 4197static inline void 4198deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4199 const char *name) 4200{ 4201 deleg_perm->dp_who_type = type; 4202 deleg_perm->dp_name = name; 4203} 4204 4205static inline void 4206who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4207 zfs_deleg_who_type_t type, const char *name) 4208{ 4209 uu_avl_pool_t *pool; 4210 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4211 4212 bzero(who_perm, sizeof (who_perm_t)); 4213 4214 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4215 UU_DEFAULT)) == NULL) 4216 nomem(); 4217 4218 who_perm->who_type = type; 4219 who_perm->who_name = name; 4220 who_perm->who_fsperm = fsperm; 4221} 4222 4223static inline void 4224who_perm_fini(who_perm_t *who_perm) 4225{ 4226 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4227 4228 while (node != NULL) { 4229 deleg_perm_node_t *next_node = 4230 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4231 4232 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4233 free(node); 4234 node = next_node; 4235 } 4236 4237 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4238} 4239 4240static inline void 4241fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4242{ 4243 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4244 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4245 4246 bzero(fsperm, sizeof (fs_perm_t)); 4247 4248 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4249 == NULL) 4250 nomem(); 4251 4252 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4253 == NULL) 4254 nomem(); 4255 4256 fsperm->fsp_set = fspset; 4257 fsperm->fsp_name = fsname; 4258} 4259 4260static inline void 4261fs_perm_fini(fs_perm_t *fsperm) 4262{ 4263 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4264 while (node != NULL) { 4265 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4266 node); 4267 who_perm_t *who_perm = &node->who_perm; 4268 who_perm_fini(who_perm); 4269 uu_avl_remove(fsperm->fsp_sc_avl, node); 4270 free(node); 4271 node = next_node; 4272 } 4273 4274 node = uu_avl_first(fsperm->fsp_uge_avl); 4275 while (node != NULL) { 4276 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4277 node); 4278 who_perm_t *who_perm = &node->who_perm; 4279 who_perm_fini(who_perm); 4280 uu_avl_remove(fsperm->fsp_uge_avl, node); 4281 free(node); 4282 node = next_node; 4283 } 4284 4285 uu_avl_destroy(fsperm->fsp_sc_avl); 4286 uu_avl_destroy(fsperm->fsp_uge_avl); 4287} 4288 4289static void inline 4290set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4291 zfs_deleg_who_type_t who_type, const char *name, char locality) 4292{ 4293 uu_avl_index_t idx = 0; 4294 4295 deleg_perm_node_t *found_node = NULL; 4296 deleg_perm_t *deleg_perm = &node->dpn_perm; 4297 4298 deleg_perm_init(deleg_perm, who_type, name); 4299 4300 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4301 == NULL) 4302 uu_avl_insert(avl, node, idx); 4303 else { 4304 node = found_node; 4305 deleg_perm = &node->dpn_perm; 4306 } 4307 4308 4309 switch (locality) { 4310 case ZFS_DELEG_LOCAL: 4311 deleg_perm->dp_local = B_TRUE; 4312 break; 4313 case ZFS_DELEG_DESCENDENT: 4314 deleg_perm->dp_descend = B_TRUE; 4315 break; 4316 case ZFS_DELEG_NA: 4317 break; 4318 default: 4319 assert(B_FALSE); /* invalid locality */ 4320 } 4321} 4322 4323static inline int 4324parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4325{ 4326 nvpair_t *nvp = NULL; 4327 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4328 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4329 zfs_deleg_who_type_t who_type = who_perm->who_type; 4330 4331 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4332 const char *name = nvpair_name(nvp); 4333 data_type_t type = nvpair_type(nvp); 4334 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4335 deleg_perm_node_t *node = 4336 safe_malloc(sizeof (deleg_perm_node_t)); 4337 4338 assert(type == DATA_TYPE_BOOLEAN); 4339 4340 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4341 set_deleg_perm_node(avl, node, who_type, name, locality); 4342 } 4343 4344 return (0); 4345} 4346 4347static inline int 4348parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4349{ 4350 nvpair_t *nvp = NULL; 4351 fs_perm_set_t *fspset = fsperm->fsp_set; 4352 4353 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4354 nvlist_t *nvl2 = NULL; 4355 const char *name = nvpair_name(nvp); 4356 uu_avl_t *avl = NULL; 4357 uu_avl_pool_t *avl_pool; 4358 zfs_deleg_who_type_t perm_type = name[0]; 4359 char perm_locality = name[1]; 4360 const char *perm_name = name + 3; 4361 boolean_t is_set = B_TRUE; 4362 who_perm_t *who_perm = NULL; 4363 4364 assert('$' == name[2]); 4365 4366 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4367 return (-1); 4368 4369 switch (perm_type) { 4370 case ZFS_DELEG_CREATE: 4371 case ZFS_DELEG_CREATE_SETS: 4372 case ZFS_DELEG_NAMED_SET: 4373 case ZFS_DELEG_NAMED_SET_SETS: 4374 avl_pool = fspset->fsps_named_set_avl_pool; 4375 avl = fsperm->fsp_sc_avl; 4376 break; 4377 case ZFS_DELEG_USER: 4378 case ZFS_DELEG_USER_SETS: 4379 case ZFS_DELEG_GROUP: 4380 case ZFS_DELEG_GROUP_SETS: 4381 case ZFS_DELEG_EVERYONE: 4382 case ZFS_DELEG_EVERYONE_SETS: 4383 avl_pool = fspset->fsps_who_perm_avl_pool; 4384 avl = fsperm->fsp_uge_avl; 4385 break; 4386 } 4387 4388 if (is_set) { 4389 who_perm_node_t *found_node = NULL; 4390 who_perm_node_t *node = safe_malloc( 4391 sizeof (who_perm_node_t)); 4392 who_perm = &node->who_perm; 4393 uu_avl_index_t idx = 0; 4394 4395 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4396 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4397 4398 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4399 == NULL) { 4400 if (avl == fsperm->fsp_uge_avl) { 4401 uid_t rid = 0; 4402 struct passwd *p = NULL; 4403 struct group *g = NULL; 4404 const char *nice_name = NULL; 4405 4406 switch (perm_type) { 4407 case ZFS_DELEG_USER_SETS: 4408 case ZFS_DELEG_USER: 4409 rid = atoi(perm_name); 4410 p = getpwuid(rid); 4411 if (p) 4412 nice_name = p->pw_name; 4413 break; 4414 case ZFS_DELEG_GROUP_SETS: 4415 case ZFS_DELEG_GROUP: 4416 rid = atoi(perm_name); 4417 g = getgrgid(rid); 4418 if (g) 4419 nice_name = g->gr_name; 4420 break; 4421 } 4422 4423 if (nice_name != NULL) 4424 (void) strlcpy( 4425 node->who_perm.who_ug_name, 4426 nice_name, 256); 4427 } 4428 4429 uu_avl_insert(avl, node, idx); 4430 } else { 4431 node = found_node; 4432 who_perm = &node->who_perm; 4433 } 4434 } 4435 4436 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4437 } 4438 4439 return (0); 4440} 4441 4442static inline int 4443parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4444{ 4445 nvpair_t *nvp = NULL; 4446 uu_avl_index_t idx = 0; 4447 4448 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4449 nvlist_t *nvl2 = NULL; 4450 const char *fsname = nvpair_name(nvp); 4451 data_type_t type = nvpair_type(nvp); 4452 fs_perm_t *fsperm = NULL; 4453 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4454 if (node == NULL) 4455 nomem(); 4456 4457 fsperm = &node->fspn_fsperm; 4458 4459 assert(DATA_TYPE_NVLIST == type); 4460 4461 uu_list_node_init(node, &node->fspn_list_node, 4462 fspset->fsps_list_pool); 4463 4464 idx = uu_list_numnodes(fspset->fsps_list); 4465 fs_perm_init(fsperm, fspset, fsname); 4466 4467 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4468 return (-1); 4469 4470 (void) parse_fs_perm(fsperm, nvl2); 4471 4472 uu_list_insert(fspset->fsps_list, node, idx); 4473 } 4474 4475 return (0); 4476} 4477 4478static inline const char * 4479deleg_perm_comment(zfs_deleg_note_t note) 4480{ 4481 const char *str = ""; 4482 4483 /* subcommands */ 4484 switch (note) { 4485 /* SUBCOMMANDS */ 4486 case ZFS_DELEG_NOTE_ALLOW: 4487 str = gettext("Must also have the permission that is being" 4488 "\n\t\t\t\tallowed"); 4489 break; 4490 case ZFS_DELEG_NOTE_CLONE: 4491 str = gettext("Must also have the 'create' ability and 'mount'" 4492 "\n\t\t\t\tability in the origin file system"); 4493 break; 4494 case ZFS_DELEG_NOTE_CREATE: 4495 str = gettext("Must also have the 'mount' ability"); 4496 break; 4497 case ZFS_DELEG_NOTE_DESTROY: 4498 str = gettext("Must also have the 'mount' ability"); 4499 break; 4500 case ZFS_DELEG_NOTE_DIFF: 4501 str = gettext("Allows lookup of paths within a dataset;" 4502 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4503 "\n\t\t\t\tin order to use zfs diff"); 4504 break; 4505 case ZFS_DELEG_NOTE_HOLD: 4506 str = gettext("Allows adding a user hold to a snapshot"); 4507 break; 4508 case ZFS_DELEG_NOTE_MOUNT: 4509 str = gettext("Allows mount/umount of ZFS datasets"); 4510 break; 4511 case ZFS_DELEG_NOTE_PROMOTE: 4512 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4513 " 'promote' ability in the origin file system"); 4514 break; 4515 case ZFS_DELEG_NOTE_RECEIVE: 4516 str = gettext("Must also have the 'mount' and 'create'" 4517 " ability"); 4518 break; 4519 case ZFS_DELEG_NOTE_RELEASE: 4520 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4521 "might destroy the snapshot"); 4522 break; 4523 case ZFS_DELEG_NOTE_RENAME: 4524 str = gettext("Must also have the 'mount' and 'create'" 4525 "\n\t\t\t\tability in the new parent"); 4526 break; 4527 case ZFS_DELEG_NOTE_ROLLBACK: 4528 str = gettext(""); 4529 break; 4530 case ZFS_DELEG_NOTE_SEND: 4531 str = gettext(""); 4532 break; 4533 case ZFS_DELEG_NOTE_SHARE: 4534 str = gettext("Allows sharing file systems over NFS or SMB" 4535 "\n\t\t\t\tprotocols"); 4536 break; 4537 case ZFS_DELEG_NOTE_SNAPSHOT: 4538 str = gettext(""); 4539 break; 4540/* 4541 * case ZFS_DELEG_NOTE_VSCAN: 4542 * str = gettext(""); 4543 * break; 4544 */ 4545 /* OTHER */ 4546 case ZFS_DELEG_NOTE_GROUPQUOTA: 4547 str = gettext("Allows accessing any groupquota@... property"); 4548 break; 4549 case ZFS_DELEG_NOTE_GROUPUSED: 4550 str = gettext("Allows reading any groupused@... property"); 4551 break; 4552 case ZFS_DELEG_NOTE_USERPROP: 4553 str = gettext("Allows changing any user property"); 4554 break; 4555 case ZFS_DELEG_NOTE_USERQUOTA: 4556 str = gettext("Allows accessing any userquota@... property"); 4557 break; 4558 case ZFS_DELEG_NOTE_USERUSED: 4559 str = gettext("Allows reading any userused@... property"); 4560 break; 4561 /* other */ 4562 default: 4563 str = ""; 4564 } 4565 4566 return (str); 4567} 4568 4569struct allow_opts { 4570 boolean_t local; 4571 boolean_t descend; 4572 boolean_t user; 4573 boolean_t group; 4574 boolean_t everyone; 4575 boolean_t create; 4576 boolean_t set; 4577 boolean_t recursive; /* unallow only */ 4578 boolean_t prt_usage; 4579 4580 boolean_t prt_perms; 4581 char *who; 4582 char *perms; 4583 const char *dataset; 4584}; 4585 4586static inline int 4587prop_cmp(const void *a, const void *b) 4588{ 4589 const char *str1 = *(const char **)a; 4590 const char *str2 = *(const char **)b; 4591 return (strcmp(str1, str2)); 4592} 4593 4594static void 4595allow_usage(boolean_t un, boolean_t requested, const char *msg) 4596{ 4597 const char *opt_desc[] = { 4598 "-h", gettext("show this help message and exit"), 4599 "-l", gettext("set permission locally"), 4600 "-d", gettext("set permission for descents"), 4601 "-u", gettext("set permission for user"), 4602 "-g", gettext("set permission for group"), 4603 "-e", gettext("set permission for everyone"), 4604 "-c", gettext("set create time permission"), 4605 "-s", gettext("define permission set"), 4606 /* unallow only */ 4607 "-r", gettext("remove permissions recursively"), 4608 }; 4609 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4610 size_t allow_size = unallow_size - 2; 4611 const char *props[ZFS_NUM_PROPS]; 4612 int i; 4613 size_t count = 0; 4614 FILE *fp = requested ? stdout : stderr; 4615 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4616 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4617 4618 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4619 HELP_ALLOW)); 4620 (void) fprintf(fp, gettext("Options:\n")); 4621 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4622 const char *opt = opt_desc[i++]; 4623 const char *optdsc = opt_desc[i]; 4624 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4625 } 4626 4627 (void) fprintf(fp, gettext("\nThe following permissions are " 4628 "supported:\n\n")); 4629 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4630 gettext("NOTES")); 4631 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4632 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4633 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4634 const char *perm_type = deleg_perm_type(perm_note); 4635 const char *perm_comment = deleg_perm_comment(perm_note); 4636 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4637 } 4638 4639 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4640 zprop_desc_t *pd = &pdtbl[i]; 4641 if (pd->pd_visible != B_TRUE) 4642 continue; 4643 4644 if (pd->pd_attr == PROP_READONLY) 4645 continue; 4646 4647 props[count++] = pd->pd_name; 4648 } 4649 props[count] = NULL; 4650 4651 qsort(props, count, sizeof (char *), prop_cmp); 4652 4653 for (i = 0; i < count; i++) 4654 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4655 4656 if (msg != NULL) 4657 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4658 4659 exit(requested ? 0 : 2); 4660} 4661 4662static inline const char * 4663munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4664 char **permsp) 4665{ 4666 if (un && argc == expected_argc - 1) 4667 *permsp = NULL; 4668 else if (argc == expected_argc) 4669 *permsp = argv[argc - 2]; 4670 else 4671 allow_usage(un, B_FALSE, 4672 gettext("wrong number of parameters\n")); 4673 4674 return (argv[argc - 1]); 4675} 4676 4677static void 4678parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4679{ 4680 int uge_sum = opts->user + opts->group + opts->everyone; 4681 int csuge_sum = opts->create + opts->set + uge_sum; 4682 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4683 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4684 4685 if (uge_sum > 1) 4686 allow_usage(un, B_FALSE, 4687 gettext("-u, -g, and -e are mutually exclusive\n")); 4688 4689 if (opts->prt_usage) 4690 if (argc == 0 && all_sum == 0) 4691 allow_usage(un, B_TRUE, NULL); 4692 else 4693 usage(B_FALSE); 4694 4695 if (opts->set) { 4696 if (csuge_sum > 1) 4697 allow_usage(un, B_FALSE, 4698 gettext("invalid options combined with -s\n")); 4699 4700 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4701 if (argv[0][0] != '@') 4702 allow_usage(un, B_FALSE, 4703 gettext("invalid set name: missing '@' prefix\n")); 4704 opts->who = argv[0]; 4705 } else if (opts->create) { 4706 if (ldcsuge_sum > 1) 4707 allow_usage(un, B_FALSE, 4708 gettext("invalid options combined with -c\n")); 4709 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4710 } else if (opts->everyone) { 4711 if (csuge_sum > 1) 4712 allow_usage(un, B_FALSE, 4713 gettext("invalid options combined with -e\n")); 4714 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4715 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4716 == 0) { 4717 opts->everyone = B_TRUE; 4718 argc--; 4719 argv++; 4720 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4721 } else if (argc == 1 && !un) { 4722 opts->prt_perms = B_TRUE; 4723 opts->dataset = argv[argc-1]; 4724 } else { 4725 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4726 opts->who = argv[0]; 4727 } 4728 4729 if (!opts->local && !opts->descend) { 4730 opts->local = B_TRUE; 4731 opts->descend = B_TRUE; 4732 } 4733} 4734 4735static void 4736store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4737 const char *who, char *perms, nvlist_t *top_nvl) 4738{ 4739 int i; 4740 char ld[2] = { '\0', '\0' }; 4741 char who_buf[ZFS_MAXNAMELEN+32]; 4742 char base_type; 4743 char set_type; 4744 nvlist_t *base_nvl = NULL; 4745 nvlist_t *set_nvl = NULL; 4746 nvlist_t *nvl; 4747 4748 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4749 nomem(); 4750 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4751 nomem(); 4752 4753 switch (type) { 4754 case ZFS_DELEG_NAMED_SET_SETS: 4755 case ZFS_DELEG_NAMED_SET: 4756 set_type = ZFS_DELEG_NAMED_SET_SETS; 4757 base_type = ZFS_DELEG_NAMED_SET; 4758 ld[0] = ZFS_DELEG_NA; 4759 break; 4760 case ZFS_DELEG_CREATE_SETS: 4761 case ZFS_DELEG_CREATE: 4762 set_type = ZFS_DELEG_CREATE_SETS; 4763 base_type = ZFS_DELEG_CREATE; 4764 ld[0] = ZFS_DELEG_NA; 4765 break; 4766 case ZFS_DELEG_USER_SETS: 4767 case ZFS_DELEG_USER: 4768 set_type = ZFS_DELEG_USER_SETS; 4769 base_type = ZFS_DELEG_USER; 4770 if (local) 4771 ld[0] = ZFS_DELEG_LOCAL; 4772 if (descend) 4773 ld[1] = ZFS_DELEG_DESCENDENT; 4774 break; 4775 case ZFS_DELEG_GROUP_SETS: 4776 case ZFS_DELEG_GROUP: 4777 set_type = ZFS_DELEG_GROUP_SETS; 4778 base_type = ZFS_DELEG_GROUP; 4779 if (local) 4780 ld[0] = ZFS_DELEG_LOCAL; 4781 if (descend) 4782 ld[1] = ZFS_DELEG_DESCENDENT; 4783 break; 4784 case ZFS_DELEG_EVERYONE_SETS: 4785 case ZFS_DELEG_EVERYONE: 4786 set_type = ZFS_DELEG_EVERYONE_SETS; 4787 base_type = ZFS_DELEG_EVERYONE; 4788 if (local) 4789 ld[0] = ZFS_DELEG_LOCAL; 4790 if (descend) 4791 ld[1] = ZFS_DELEG_DESCENDENT; 4792 } 4793 4794 if (perms != NULL) { 4795 char *curr = perms; 4796 char *end = curr + strlen(perms); 4797 4798 while (curr < end) { 4799 char *delim = strchr(curr, ','); 4800 if (delim == NULL) 4801 delim = end; 4802 else 4803 *delim = '\0'; 4804 4805 if (curr[0] == '@') 4806 nvl = set_nvl; 4807 else 4808 nvl = base_nvl; 4809 4810 (void) nvlist_add_boolean(nvl, curr); 4811 if (delim != end) 4812 *delim = ','; 4813 curr = delim + 1; 4814 } 4815 4816 for (i = 0; i < 2; i++) { 4817 char locality = ld[i]; 4818 if (locality == 0) 4819 continue; 4820 4821 if (!nvlist_empty(base_nvl)) { 4822 if (who != NULL) 4823 (void) snprintf(who_buf, 4824 sizeof (who_buf), "%c%c$%s", 4825 base_type, locality, who); 4826 else 4827 (void) snprintf(who_buf, 4828 sizeof (who_buf), "%c%c$", 4829 base_type, locality); 4830 4831 (void) nvlist_add_nvlist(top_nvl, who_buf, 4832 base_nvl); 4833 } 4834 4835 4836 if (!nvlist_empty(set_nvl)) { 4837 if (who != NULL) 4838 (void) snprintf(who_buf, 4839 sizeof (who_buf), "%c%c$%s", 4840 set_type, locality, who); 4841 else 4842 (void) snprintf(who_buf, 4843 sizeof (who_buf), "%c%c$", 4844 set_type, locality); 4845 4846 (void) nvlist_add_nvlist(top_nvl, who_buf, 4847 set_nvl); 4848 } 4849 } 4850 } else { 4851 for (i = 0; i < 2; i++) { 4852 char locality = ld[i]; 4853 if (locality == 0) 4854 continue; 4855 4856 if (who != NULL) 4857 (void) snprintf(who_buf, sizeof (who_buf), 4858 "%c%c$%s", base_type, locality, who); 4859 else 4860 (void) snprintf(who_buf, sizeof (who_buf), 4861 "%c%c$", base_type, locality); 4862 (void) nvlist_add_boolean(top_nvl, who_buf); 4863 4864 if (who != NULL) 4865 (void) snprintf(who_buf, sizeof (who_buf), 4866 "%c%c$%s", set_type, locality, who); 4867 else 4868 (void) snprintf(who_buf, sizeof (who_buf), 4869 "%c%c$", set_type, locality); 4870 (void) nvlist_add_boolean(top_nvl, who_buf); 4871 } 4872 } 4873} 4874 4875static int 4876construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4877{ 4878 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4879 nomem(); 4880 4881 if (opts->set) { 4882 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4883 opts->descend, opts->who, opts->perms, *nvlp); 4884 } else if (opts->create) { 4885 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4886 opts->descend, NULL, opts->perms, *nvlp); 4887 } else if (opts->everyone) { 4888 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4889 opts->descend, NULL, opts->perms, *nvlp); 4890 } else { 4891 char *curr = opts->who; 4892 char *end = curr + strlen(curr); 4893 4894 while (curr < end) { 4895 const char *who; 4896 zfs_deleg_who_type_t who_type; 4897 char *endch; 4898 char *delim = strchr(curr, ','); 4899 char errbuf[256]; 4900 char id[64]; 4901 struct passwd *p = NULL; 4902 struct group *g = NULL; 4903 4904 uid_t rid; 4905 if (delim == NULL) 4906 delim = end; 4907 else 4908 *delim = '\0'; 4909 4910 rid = (uid_t)strtol(curr, &endch, 0); 4911 if (opts->user) { 4912 who_type = ZFS_DELEG_USER; 4913 if (*endch != '\0') 4914 p = getpwnam(curr); 4915 else 4916 p = getpwuid(rid); 4917 4918 if (p != NULL) 4919 rid = p->pw_uid; 4920 else { 4921 (void) snprintf(errbuf, 256, gettext( 4922 "invalid user %s"), curr); 4923 allow_usage(un, B_TRUE, errbuf); 4924 } 4925 } else if (opts->group) { 4926 who_type = ZFS_DELEG_GROUP; 4927 if (*endch != '\0') 4928 g = getgrnam(curr); 4929 else 4930 g = getgrgid(rid); 4931 4932 if (g != NULL) 4933 rid = g->gr_gid; 4934 else { 4935 (void) snprintf(errbuf, 256, gettext( 4936 "invalid group %s"), curr); 4937 allow_usage(un, B_TRUE, errbuf); 4938 } 4939 } else { 4940 if (*endch != '\0') { 4941 p = getpwnam(curr); 4942 } else { 4943 p = getpwuid(rid); 4944 } 4945 4946 if (p == NULL) 4947 if (*endch != '\0') { 4948 g = getgrnam(curr); 4949 } else { 4950 g = getgrgid(rid); 4951 } 4952 4953 if (p != NULL) { 4954 who_type = ZFS_DELEG_USER; 4955 rid = p->pw_uid; 4956 } else if (g != NULL) { 4957 who_type = ZFS_DELEG_GROUP; 4958 rid = g->gr_gid; 4959 } else { 4960 (void) snprintf(errbuf, 256, gettext( 4961 "invalid user/group %s"), curr); 4962 allow_usage(un, B_TRUE, errbuf); 4963 } 4964 } 4965 4966 (void) sprintf(id, "%u", rid); 4967 who = id; 4968 4969 store_allow_perm(who_type, opts->local, 4970 opts->descend, who, opts->perms, *nvlp); 4971 curr = delim + 1; 4972 } 4973 } 4974 4975 return (0); 4976} 4977 4978static void 4979print_set_creat_perms(uu_avl_t *who_avl) 4980{ 4981 const char *sc_title[] = { 4982 gettext("Permission sets:\n"), 4983 gettext("Create time permissions:\n"), 4984 NULL 4985 }; 4986 const char **title_ptr = sc_title; 4987 who_perm_node_t *who_node = NULL; 4988 int prev_weight = -1; 4989 4990 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4991 who_node = uu_avl_next(who_avl, who_node)) { 4992 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4993 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4994 const char *who_name = who_node->who_perm.who_name; 4995 int weight = who_type2weight(who_type); 4996 boolean_t first = B_TRUE; 4997 deleg_perm_node_t *deleg_node; 4998 4999 if (prev_weight != weight) { 5000 (void) printf(*title_ptr++); 5001 prev_weight = weight; 5002 } 5003 5004 if (who_name == NULL || strnlen(who_name, 1) == 0) 5005 (void) printf("\t"); 5006 else 5007 (void) printf("\t%s ", who_name); 5008 5009 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5010 deleg_node = uu_avl_next(avl, deleg_node)) { 5011 if (first) { 5012 (void) printf("%s", 5013 deleg_node->dpn_perm.dp_name); 5014 first = B_FALSE; 5015 } else 5016 (void) printf(",%s", 5017 deleg_node->dpn_perm.dp_name); 5018 } 5019 5020 (void) printf("\n"); 5021 } 5022} 5023 5024static void inline 5025print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5026 const char *title) 5027{ 5028 who_perm_node_t *who_node = NULL; 5029 boolean_t prt_title = B_TRUE; 5030 uu_avl_walk_t *walk; 5031 5032 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5033 nomem(); 5034 5035 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5036 const char *who_name = who_node->who_perm.who_name; 5037 const char *nice_who_name = who_node->who_perm.who_ug_name; 5038 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5039 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5040 char delim = ' '; 5041 deleg_perm_node_t *deleg_node; 5042 boolean_t prt_who = B_TRUE; 5043 5044 for (deleg_node = uu_avl_first(avl); 5045 deleg_node != NULL; 5046 deleg_node = uu_avl_next(avl, deleg_node)) { 5047 if (local != deleg_node->dpn_perm.dp_local || 5048 descend != deleg_node->dpn_perm.dp_descend) 5049 continue; 5050 5051 if (prt_who) { 5052 const char *who = NULL; 5053 if (prt_title) { 5054 prt_title = B_FALSE; 5055 (void) printf(title); 5056 } 5057 5058 switch (who_type) { 5059 case ZFS_DELEG_USER_SETS: 5060 case ZFS_DELEG_USER: 5061 who = gettext("user"); 5062 if (nice_who_name) 5063 who_name = nice_who_name; 5064 break; 5065 case ZFS_DELEG_GROUP_SETS: 5066 case ZFS_DELEG_GROUP: 5067 who = gettext("group"); 5068 if (nice_who_name) 5069 who_name = nice_who_name; 5070 break; 5071 case ZFS_DELEG_EVERYONE_SETS: 5072 case ZFS_DELEG_EVERYONE: 5073 who = gettext("everyone"); 5074 who_name = NULL; 5075 } 5076 5077 prt_who = B_FALSE; 5078 if (who_name == NULL) 5079 (void) printf("\t%s", who); 5080 else 5081 (void) printf("\t%s %s", who, who_name); 5082 } 5083 5084 (void) printf("%c%s", delim, 5085 deleg_node->dpn_perm.dp_name); 5086 delim = ','; 5087 } 5088 5089 if (!prt_who) 5090 (void) printf("\n"); 5091 } 5092 5093 uu_avl_walk_end(walk); 5094} 5095 5096static void 5097print_fs_perms(fs_perm_set_t *fspset) 5098{ 5099 fs_perm_node_t *node = NULL; 5100 char buf[ZFS_MAXNAMELEN+32]; 5101 const char *dsname = buf; 5102 5103 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5104 node = uu_list_next(fspset->fsps_list, node)) { 5105 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5106 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5107 int left = 0; 5108 5109 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5110 gettext("---- Permissions on %s "), 5111 node->fspn_fsperm.fsp_name); 5112 (void) printf(dsname); 5113 left = 70 - strlen(buf); 5114 while (left-- > 0) 5115 (void) printf("-"); 5116 (void) printf("\n"); 5117 5118 print_set_creat_perms(sc_avl); 5119 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5120 gettext("Local permissions:\n")); 5121 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5122 gettext("Descendent permissions:\n")); 5123 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5124 gettext("Local+Descendent permissions:\n")); 5125 } 5126} 5127 5128static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5129 5130struct deleg_perms { 5131 boolean_t un; 5132 nvlist_t *nvl; 5133}; 5134 5135static int 5136set_deleg_perms(zfs_handle_t *zhp, void *data) 5137{ 5138 struct deleg_perms *perms = (struct deleg_perms *)data; 5139 zfs_type_t zfs_type = zfs_get_type(zhp); 5140 5141 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5142 return (0); 5143 5144 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5145} 5146 5147static int 5148zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5149{ 5150 zfs_handle_t *zhp; 5151 nvlist_t *perm_nvl = NULL; 5152 nvlist_t *update_perm_nvl = NULL; 5153 int error = 1; 5154 int c; 5155 struct allow_opts opts = { 0 }; 5156 5157 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5158 5159 /* check opts */ 5160 while ((c = getopt(argc, argv, optstr)) != -1) { 5161 switch (c) { 5162 case 'l': 5163 opts.local = B_TRUE; 5164 break; 5165 case 'd': 5166 opts.descend = B_TRUE; 5167 break; 5168 case 'u': 5169 opts.user = B_TRUE; 5170 break; 5171 case 'g': 5172 opts.group = B_TRUE; 5173 break; 5174 case 'e': 5175 opts.everyone = B_TRUE; 5176 break; 5177 case 's': 5178 opts.set = B_TRUE; 5179 break; 5180 case 'c': 5181 opts.create = B_TRUE; 5182 break; 5183 case 'r': 5184 opts.recursive = B_TRUE; 5185 break; 5186 case ':': 5187 (void) fprintf(stderr, gettext("missing argument for " 5188 "'%c' option\n"), optopt); 5189 usage(B_FALSE); 5190 break; 5191 case 'h': 5192 opts.prt_usage = B_TRUE; 5193 break; 5194 case '?': 5195 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5196 optopt); 5197 usage(B_FALSE); 5198 } 5199 } 5200 5201 argc -= optind; 5202 argv += optind; 5203 5204 /* check arguments */ 5205 parse_allow_args(argc, argv, un, &opts); 5206 5207 /* try to open the dataset */ 5208 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5209 ZFS_TYPE_VOLUME)) == NULL) { 5210 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5211 opts.dataset); 5212 return (-1); 5213 } 5214 5215 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5216 goto cleanup2; 5217 5218 fs_perm_set_init(&fs_perm_set); 5219 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5220 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5221 goto cleanup1; 5222 } 5223 5224 if (opts.prt_perms) 5225 print_fs_perms(&fs_perm_set); 5226 else { 5227 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5228 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5229 goto cleanup0; 5230 5231 if (un && opts.recursive) { 5232 struct deleg_perms data = { un, update_perm_nvl }; 5233 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5234 &data) != 0) 5235 goto cleanup0; 5236 } 5237 } 5238 5239 error = 0; 5240 5241cleanup0: 5242 nvlist_free(perm_nvl); 5243 if (update_perm_nvl != NULL) 5244 nvlist_free(update_perm_nvl); 5245cleanup1: 5246 fs_perm_set_fini(&fs_perm_set); 5247cleanup2: 5248 zfs_close(zhp); 5249 5250 return (error); 5251} 5252 5253static int 5254zfs_do_allow(int argc, char **argv) 5255{ 5256 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5257} 5258 5259static int 5260zfs_do_unallow(int argc, char **argv) 5261{ 5262 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5263} 5264 5265static int 5266zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5267{ 5268 int errors = 0; 5269 int i; 5270 const char *tag; 5271 boolean_t recursive = B_FALSE; 5272 const char *opts = holding ? "rt" : "r"; 5273 int c; 5274 5275 /* check options */ 5276 while ((c = getopt(argc, argv, opts)) != -1) { 5277 switch (c) { 5278 case 'r': 5279 recursive = B_TRUE; 5280 break; 5281 case '?': 5282 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5283 optopt); 5284 usage(B_FALSE); 5285 } 5286 } 5287 5288 argc -= optind; 5289 argv += optind; 5290 5291 /* check number of arguments */ 5292 if (argc < 2) 5293 usage(B_FALSE); 5294 5295 tag = argv[0]; 5296 --argc; 5297 ++argv; 5298 5299 if (holding && tag[0] == '.') { 5300 /* tags starting with '.' are reserved for libzfs */ 5301 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5302 usage(B_FALSE); 5303 } 5304 5305 for (i = 0; i < argc; ++i) { 5306 zfs_handle_t *zhp; 5307 char parent[ZFS_MAXNAMELEN]; 5308 const char *delim; 5309 char *path = argv[i]; 5310 5311 delim = strchr(path, '@'); 5312 if (delim == NULL) { 5313 (void) fprintf(stderr, 5314 gettext("'%s' is not a snapshot\n"), path); 5315 ++errors; 5316 continue; 5317 } 5318 (void) strncpy(parent, path, delim - path); 5319 parent[delim - path] = '\0'; 5320 5321 zhp = zfs_open(g_zfs, parent, 5322 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5323 if (zhp == NULL) { 5324 ++errors; 5325 continue; 5326 } 5327 if (holding) { 5328 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5329 ++errors; 5330 } else { 5331 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5332 ++errors; 5333 } 5334 zfs_close(zhp); 5335 } 5336 5337 return (errors != 0); 5338} 5339 5340/* 5341 * zfs hold [-r] [-t] <tag> <snap> ... 5342 * 5343 * -r Recursively hold 5344 * 5345 * Apply a user-hold with the given tag to the list of snapshots. 5346 */ 5347static int 5348zfs_do_hold(int argc, char **argv) 5349{ 5350 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5351} 5352 5353/* 5354 * zfs release [-r] <tag> <snap> ... 5355 * 5356 * -r Recursively release 5357 * 5358 * Release a user-hold with the given tag from the list of snapshots. 5359 */ 5360static int 5361zfs_do_release(int argc, char **argv) 5362{ 5363 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5364} 5365 5366typedef struct holds_cbdata { 5367 boolean_t cb_recursive; 5368 const char *cb_snapname; 5369 nvlist_t **cb_nvlp; 5370 size_t cb_max_namelen; 5371 size_t cb_max_taglen; 5372} holds_cbdata_t; 5373 5374#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5375#define DATETIME_BUF_LEN (32) 5376/* 5377 * 5378 */ 5379static void 5380print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5381{ 5382 int i; 5383 nvpair_t *nvp = NULL; 5384 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5385 const char *col; 5386 5387 if (!scripted) { 5388 for (i = 0; i < 3; i++) { 5389 col = gettext(hdr_cols[i]); 5390 if (i < 2) 5391 (void) printf("%-*s ", i ? tagwidth : nwidth, 5392 col); 5393 else 5394 (void) printf("%s\n", col); 5395 } 5396 } 5397 5398 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5399 char *zname = nvpair_name(nvp); 5400 nvlist_t *nvl2; 5401 nvpair_t *nvp2 = NULL; 5402 (void) nvpair_value_nvlist(nvp, &nvl2); 5403 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5404 char tsbuf[DATETIME_BUF_LEN]; 5405 char *tagname = nvpair_name(nvp2); 5406 uint64_t val = 0; 5407 time_t time; 5408 struct tm t; 5409 char sep = scripted ? '\t' : ' '; 5410 size_t sepnum = scripted ? 1 : 2; 5411 5412 (void) nvpair_value_uint64(nvp2, &val); 5413 time = (time_t)val; 5414 (void) localtime_r(&time, &t); 5415 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5416 gettext(STRFTIME_FMT_STR), &t); 5417 5418 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5419 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5420 } 5421 } 5422} 5423 5424/* 5425 * Generic callback function to list a dataset or snapshot. 5426 */ 5427static int 5428holds_callback(zfs_handle_t *zhp, void *data) 5429{ 5430 holds_cbdata_t *cbp = data; 5431 nvlist_t *top_nvl = *cbp->cb_nvlp; 5432 nvlist_t *nvl = NULL; 5433 nvpair_t *nvp = NULL; 5434 const char *zname = zfs_get_name(zhp); 5435 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5436 5437 if (cbp->cb_recursive) { 5438 const char *snapname; 5439 char *delim = strchr(zname, '@'); 5440 if (delim == NULL) 5441 return (0); 5442 5443 snapname = delim + 1; 5444 if (strcmp(cbp->cb_snapname, snapname)) 5445 return (0); 5446 } 5447 5448 if (zfs_get_holds(zhp, &nvl) != 0) 5449 return (-1); 5450 5451 if (znamelen > cbp->cb_max_namelen) 5452 cbp->cb_max_namelen = znamelen; 5453 5454 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5455 const char *tag = nvpair_name(nvp); 5456 size_t taglen = strnlen(tag, MAXNAMELEN); 5457 if (taglen > cbp->cb_max_taglen) 5458 cbp->cb_max_taglen = taglen; 5459 } 5460 5461 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5462} 5463 5464/* 5465 * zfs holds [-r] <snap> ... 5466 * 5467 * -r Recursively hold 5468 */ 5469static int 5470zfs_do_holds(int argc, char **argv) 5471{ 5472 int errors = 0; 5473 int c; 5474 int i; 5475 boolean_t scripted = B_FALSE; 5476 boolean_t recursive = B_FALSE; 5477 const char *opts = "rH"; 5478 nvlist_t *nvl; 5479 5480 int types = ZFS_TYPE_SNAPSHOT; 5481 holds_cbdata_t cb = { 0 }; 5482 5483 int limit = 0; 5484 int ret = 0; 5485 int flags = 0; 5486 5487 /* check options */ 5488 while ((c = getopt(argc, argv, opts)) != -1) { 5489 switch (c) { 5490 case 'r': 5491 recursive = B_TRUE; 5492 break; 5493 case 'H': 5494 scripted = B_TRUE; 5495 break; 5496 case '?': 5497 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5498 optopt); 5499 usage(B_FALSE); 5500 } 5501 } 5502 5503 if (recursive) { 5504 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5505 flags |= ZFS_ITER_RECURSE; 5506 } 5507 5508 argc -= optind; 5509 argv += optind; 5510 5511 /* check number of arguments */ 5512 if (argc < 1) 5513 usage(B_FALSE); 5514 5515 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5516 nomem(); 5517 5518 for (i = 0; i < argc; ++i) { 5519 char *snapshot = argv[i]; 5520 const char *delim; 5521 const char *snapname; 5522 5523 delim = strchr(snapshot, '@'); 5524 if (delim == NULL) { 5525 (void) fprintf(stderr, 5526 gettext("'%s' is not a snapshot\n"), snapshot); 5527 ++errors; 5528 continue; 5529 } 5530 snapname = delim + 1; 5531 if (recursive) 5532 snapshot[delim - snapshot] = '\0'; 5533 5534 cb.cb_recursive = recursive; 5535 cb.cb_snapname = snapname; 5536 cb.cb_nvlp = &nvl; 5537 5538 /* 5539 * 1. collect holds data, set format options 5540 */ 5541 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5542 holds_callback, &cb); 5543 if (ret != 0) 5544 ++errors; 5545 } 5546 5547 /* 5548 * 2. print holds data 5549 */ 5550 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5551 5552 if (nvlist_empty(nvl)) 5553 (void) printf(gettext("no datasets available\n")); 5554 5555 nvlist_free(nvl); 5556 5557 return (0 != errors); 5558} 5559 5560#define CHECK_SPINNER 30 5561#define SPINNER_TIME 3 /* seconds */ 5562#define MOUNT_TIME 5 /* seconds */ 5563 5564static int 5565get_one_dataset(zfs_handle_t *zhp, void *data) 5566{ 5567 static char *spin[] = { "-", "\\", "|", "/" }; 5568 static int spinval = 0; 5569 static int spincheck = 0; 5570 static time_t last_spin_time = (time_t)0; 5571 get_all_cb_t *cbp = data; 5572 zfs_type_t type = zfs_get_type(zhp); 5573 5574 if (cbp->cb_verbose) { 5575 if (--spincheck < 0) { 5576 time_t now = time(NULL); 5577 if (last_spin_time + SPINNER_TIME < now) { 5578 update_progress(spin[spinval++ % 4]); 5579 last_spin_time = now; 5580 } 5581 spincheck = CHECK_SPINNER; 5582 } 5583 } 5584 5585 /* 5586 * Interate over any nested datasets. 5587 */ 5588 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5589 zfs_close(zhp); 5590 return (1); 5591 } 5592 5593 /* 5594 * Skip any datasets whose type does not match. 5595 */ 5596 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5597 zfs_close(zhp); 5598 return (0); 5599 } 5600 libzfs_add_handle(cbp, zhp); 5601 assert(cbp->cb_used <= cbp->cb_alloc); 5602 5603 return (0); 5604} 5605 5606static void 5607get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5608{ 5609 get_all_cb_t cb = { 0 }; 5610 cb.cb_verbose = verbose; 5611 cb.cb_getone = get_one_dataset; 5612 5613 if (verbose) 5614 set_progress_header(gettext("Reading ZFS config")); 5615 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5616 5617 *dslist = cb.cb_handles; 5618 *count = cb.cb_used; 5619 5620 if (verbose) 5621 finish_progress(gettext("done.")); 5622} 5623 5624/* 5625 * Generic callback for sharing or mounting filesystems. Because the code is so 5626 * similar, we have a common function with an extra parameter to determine which 5627 * mode we are using. 5628 */ 5629#define OP_SHARE 0x1 5630#define OP_MOUNT 0x2 5631 5632/* 5633 * Share or mount a dataset. 5634 */ 5635static int 5636share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5637 boolean_t explicit, const char *options) 5638{ 5639 char mountpoint[ZFS_MAXPROPLEN]; 5640 char shareopts[ZFS_MAXPROPLEN]; 5641 char smbshareopts[ZFS_MAXPROPLEN]; 5642 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5643 struct mnttab mnt; 5644 uint64_t zoned, canmount; 5645 boolean_t shared_nfs, shared_smb; 5646 5647 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5648 5649 /* 5650 * Check to make sure we can mount/share this dataset. If we 5651 * are in the global zone and the filesystem is exported to a 5652 * local zone, or if we are in a local zone and the 5653 * filesystem is not exported, then it is an error. 5654 */ 5655 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5656 5657 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5658 if (!explicit) 5659 return (0); 5660 5661 (void) fprintf(stderr, gettext("cannot %s '%s': " 5662 "dataset is exported to a local zone\n"), cmdname, 5663 zfs_get_name(zhp)); 5664 return (1); 5665 5666 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5667 if (!explicit) 5668 return (0); 5669 5670 (void) fprintf(stderr, gettext("cannot %s '%s': " 5671 "permission denied\n"), cmdname, 5672 zfs_get_name(zhp)); 5673 return (1); 5674 } 5675 5676 /* 5677 * Ignore any filesystems which don't apply to us. This 5678 * includes those with a legacy mountpoint, or those with 5679 * legacy share options. 5680 */ 5681 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5682 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5683 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5684 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5685 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5686 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5687 5688 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5689 strcmp(smbshareopts, "off") == 0) { 5690 if (!explicit) 5691 return (0); 5692 5693 (void) fprintf(stderr, gettext("cannot share '%s': " 5694 "legacy share\n"), zfs_get_name(zhp)); 5695 (void) fprintf(stderr, gettext("to " 5696 "share this filesystem set " 5697 "sharenfs property on\n")); 5698 return (1); 5699 } 5700 5701 /* 5702 * We cannot share or mount legacy filesystems. If the 5703 * shareopts is non-legacy but the mountpoint is legacy, we 5704 * treat it as a legacy share. 5705 */ 5706 if (strcmp(mountpoint, "legacy") == 0) { 5707 if (!explicit) 5708 return (0); 5709 5710 (void) fprintf(stderr, gettext("cannot %s '%s': " 5711 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5712 (void) fprintf(stderr, gettext("use %s(8) to " 5713 "%s this filesystem\n"), cmdname, cmdname); 5714 return (1); 5715 } 5716 5717 if (strcmp(mountpoint, "none") == 0) { 5718 if (!explicit) 5719 return (0); 5720 5721 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5722 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5723 return (1); 5724 } 5725 5726 /* 5727 * canmount explicit outcome 5728 * on no pass through 5729 * on yes pass through 5730 * off no return 0 5731 * off yes display error, return 1 5732 * noauto no return 0 5733 * noauto yes pass through 5734 */ 5735 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5736 if (canmount == ZFS_CANMOUNT_OFF) { 5737 if (!explicit) 5738 return (0); 5739 5740 (void) fprintf(stderr, gettext("cannot %s '%s': " 5741 "'canmount' property is set to 'off'\n"), cmdname, 5742 zfs_get_name(zhp)); 5743 return (1); 5744 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5745 return (0); 5746 } 5747 5748 /* 5749 * At this point, we have verified that the mountpoint and/or 5750 * shareopts are appropriate for auto management. If the 5751 * filesystem is already mounted or shared, return (failing 5752 * for explicit requests); otherwise mount or share the 5753 * filesystem. 5754 */ 5755 switch (op) { 5756 case OP_SHARE: 5757 5758 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5759 shared_smb = zfs_is_shared_smb(zhp, NULL); 5760 5761 if (shared_nfs && shared_smb || 5762 (shared_nfs && strcmp(shareopts, "on") == 0 && 5763 strcmp(smbshareopts, "off") == 0) || 5764 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5765 strcmp(shareopts, "off") == 0)) { 5766 if (!explicit) 5767 return (0); 5768 5769 (void) fprintf(stderr, gettext("cannot share " 5770 "'%s': filesystem already shared\n"), 5771 zfs_get_name(zhp)); 5772 return (1); 5773 } 5774 5775 if (!zfs_is_mounted(zhp, NULL) && 5776 zfs_mount(zhp, NULL, 0) != 0) 5777 return (1); 5778 5779 if (protocol == NULL) { 5780 if (zfs_shareall(zhp) != 0) 5781 return (1); 5782 } else if (strcmp(protocol, "nfs") == 0) { 5783 if (zfs_share_nfs(zhp)) 5784 return (1); 5785 } else if (strcmp(protocol, "smb") == 0) { 5786 if (zfs_share_smb(zhp)) 5787 return (1); 5788 } else { 5789 (void) fprintf(stderr, gettext("cannot share " 5790 "'%s': invalid share type '%s' " 5791 "specified\n"), 5792 zfs_get_name(zhp), protocol); 5793 return (1); 5794 } 5795 5796 break; 5797 5798 case OP_MOUNT: 5799 if (options == NULL) 5800 mnt.mnt_mntopts = ""; 5801 else 5802 mnt.mnt_mntopts = (char *)options; 5803 5804 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5805 zfs_is_mounted(zhp, NULL)) { 5806 if (!explicit) 5807 return (0); 5808 5809 (void) fprintf(stderr, gettext("cannot mount " 5810 "'%s': filesystem already mounted\n"), 5811 zfs_get_name(zhp)); 5812 return (1); 5813 } 5814 5815 if (zfs_mount(zhp, options, flags) != 0) 5816 return (1); 5817 break; 5818 } 5819 5820 return (0); 5821} 5822 5823/* 5824 * Reports progress in the form "(current/total)". Not thread-safe. 5825 */ 5826static void 5827report_mount_progress(int current, int total) 5828{ 5829 static time_t last_progress_time = 0; 5830 time_t now = time(NULL); 5831 char info[32]; 5832 5833 /* report 1..n instead of 0..n-1 */ 5834 ++current; 5835 5836 /* display header if we're here for the first time */ 5837 if (current == 1) { 5838 set_progress_header(gettext("Mounting ZFS filesystems")); 5839 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5840 /* too soon to report again */ 5841 return; 5842 } 5843 5844 last_progress_time = now; 5845 5846 (void) sprintf(info, "(%d/%d)", current, total); 5847 5848 if (current == total) 5849 finish_progress(info); 5850 else 5851 update_progress(info); 5852} 5853 5854static void 5855append_options(char *mntopts, char *newopts) 5856{ 5857 int len = strlen(mntopts); 5858 5859 /* original length plus new string to append plus 1 for the comma */ 5860 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5861 (void) fprintf(stderr, gettext("the opts argument for " 5862 "'%c' option is too long (more than %d chars)\n"), 5863 "-o", MNT_LINE_MAX); 5864 usage(B_FALSE); 5865 } 5866 5867 if (*mntopts) 5868 mntopts[len++] = ','; 5869 5870 (void) strcpy(&mntopts[len], newopts); 5871} 5872 5873static int 5874share_mount(int op, int argc, char **argv) 5875{ 5876 int do_all = 0; 5877 boolean_t verbose = B_FALSE; 5878 int c, ret = 0; 5879 char *options = NULL; 5880 int flags = 0; 5881 5882 /* check options */ 5883 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5884 != -1) { 5885 switch (c) { 5886 case 'a': 5887 do_all = 1; 5888 break; 5889 case 'v': 5890 verbose = B_TRUE; 5891 break; 5892 case 'o': 5893 if (*optarg == '\0') { 5894 (void) fprintf(stderr, gettext("empty mount " 5895 "options (-o) specified\n")); 5896 usage(B_FALSE); 5897 } 5898 5899 if (options == NULL) 5900 options = safe_malloc(MNT_LINE_MAX + 1); 5901 5902 /* option validation is done later */ 5903 append_options(options, optarg); 5904 break; 5905 5906 case 'O': 5907 warnx("no overlay mounts support on FreeBSD, ignoring"); 5908 break; 5909 case ':': 5910 (void) fprintf(stderr, gettext("missing argument for " 5911 "'%c' option\n"), optopt); 5912 usage(B_FALSE); 5913 break; 5914 case '?': 5915 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5916 optopt); 5917 usage(B_FALSE); 5918 } 5919 } 5920 5921 argc -= optind; 5922 argv += optind; 5923 5924 /* check number of arguments */ 5925 if (do_all) { 5926 zfs_handle_t **dslist = NULL; 5927 size_t i, count = 0; 5928 char *protocol = NULL; 5929 5930 if (op == OP_SHARE && argc > 0) { 5931 if (strcmp(argv[0], "nfs") != 0 && 5932 strcmp(argv[0], "smb") != 0) { 5933 (void) fprintf(stderr, gettext("share type " 5934 "must be 'nfs' or 'smb'\n")); 5935 usage(B_FALSE); 5936 } 5937 protocol = argv[0]; 5938 argc--; 5939 argv++; 5940 } 5941 5942 if (argc != 0) { 5943 (void) fprintf(stderr, gettext("too many arguments\n")); 5944 usage(B_FALSE); 5945 } 5946 5947 start_progress_timer(); 5948 get_all_datasets(&dslist, &count, verbose); 5949 5950 if (count == 0) 5951 return (0); 5952 5953 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5954 5955 for (i = 0; i < count; i++) { 5956 if (verbose) 5957 report_mount_progress(i, count); 5958 5959 if (share_mount_one(dslist[i], op, flags, protocol, 5960 B_FALSE, options) != 0) 5961 ret = 1; 5962 zfs_close(dslist[i]); 5963 } 5964 5965 free(dslist); 5966 } else if (argc == 0) { 5967 struct mnttab entry; 5968 5969 if ((op == OP_SHARE) || (options != NULL)) { 5970 (void) fprintf(stderr, gettext("missing filesystem " 5971 "argument (specify -a for all)\n")); 5972 usage(B_FALSE); 5973 } 5974 5975 /* 5976 * When mount is given no arguments, go through /etc/mnttab and 5977 * display any active ZFS mounts. We hide any snapshots, since 5978 * they are controlled automatically. 5979 */ 5980 rewind(mnttab_file); 5981 while (getmntent(mnttab_file, &entry) == 0) { 5982 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5983 strchr(entry.mnt_special, '@') != NULL) 5984 continue; 5985 5986 (void) printf("%-30s %s\n", entry.mnt_special, 5987 entry.mnt_mountp); 5988 } 5989 5990 } else { 5991 zfs_handle_t *zhp; 5992 5993 if (argc > 1) { 5994 (void) fprintf(stderr, 5995 gettext("too many arguments\n")); 5996 usage(B_FALSE); 5997 } 5998 5999 if ((zhp = zfs_open(g_zfs, argv[0], 6000 ZFS_TYPE_FILESYSTEM)) == NULL) { 6001 ret = 1; 6002 } else { 6003 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6004 options); 6005 zfs_close(zhp); 6006 } 6007 } 6008 6009 return (ret); 6010} 6011 6012/* 6013 * zfs mount -a [nfs] 6014 * zfs mount filesystem 6015 * 6016 * Mount all filesystems, or mount the given filesystem. 6017 */ 6018static int 6019zfs_do_mount(int argc, char **argv) 6020{ 6021 return (share_mount(OP_MOUNT, argc, argv)); 6022} 6023 6024/* 6025 * zfs share -a [nfs | smb] 6026 * zfs share filesystem 6027 * 6028 * Share all filesystems, or share the given filesystem. 6029 */ 6030static int 6031zfs_do_share(int argc, char **argv) 6032{ 6033 return (share_mount(OP_SHARE, argc, argv)); 6034} 6035 6036typedef struct unshare_unmount_node { 6037 zfs_handle_t *un_zhp; 6038 char *un_mountp; 6039 uu_avl_node_t un_avlnode; 6040} unshare_unmount_node_t; 6041 6042/* ARGSUSED */ 6043static int 6044unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6045{ 6046 const unshare_unmount_node_t *l = larg; 6047 const unshare_unmount_node_t *r = rarg; 6048 6049 return (strcmp(l->un_mountp, r->un_mountp)); 6050} 6051 6052/* 6053 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6054 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6055 * and unmount it appropriately. 6056 */ 6057static int 6058unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6059{ 6060 zfs_handle_t *zhp; 6061 int ret = 0; 6062 struct stat64 statbuf; 6063 struct extmnttab entry; 6064 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6065 ino_t path_inode; 6066 6067 /* 6068 * Search for the path in /etc/mnttab. Rather than looking for the 6069 * specific path, which can be fooled by non-standard paths (i.e. ".." 6070 * or "//"), we stat() the path and search for the corresponding 6071 * (major,minor) device pair. 6072 */ 6073 if (stat64(path, &statbuf) != 0) { 6074 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6075 cmdname, path, strerror(errno)); 6076 return (1); 6077 } 6078 path_inode = statbuf.st_ino; 6079 6080 /* 6081 * Search for the given (major,minor) pair in the mount table. 6082 */ 6083#ifdef sun 6084 rewind(mnttab_file); 6085 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6086 if (entry.mnt_major == major(statbuf.st_dev) && 6087 entry.mnt_minor == minor(statbuf.st_dev)) 6088 break; 6089 } 6090#else 6091 { 6092 struct statfs sfs; 6093 6094 if (statfs(path, &sfs) != 0) { 6095 (void) fprintf(stderr, "%s: %s\n", path, 6096 strerror(errno)); 6097 ret = -1; 6098 } 6099 statfs2mnttab(&sfs, &entry); 6100 } 6101#endif 6102 if (ret != 0) { 6103 if (op == OP_SHARE) { 6104 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6105 "currently mounted\n"), cmdname, path); 6106 return (1); 6107 } 6108 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6109 path); 6110 if ((ret = umount2(path, flags)) != 0) 6111 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6112 strerror(errno)); 6113 return (ret != 0); 6114 } 6115 6116 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6117 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6118 "filesystem\n"), cmdname, path); 6119 return (1); 6120 } 6121 6122 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6123 ZFS_TYPE_FILESYSTEM)) == NULL) 6124 return (1); 6125 6126 ret = 1; 6127 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6128 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6129 cmdname, path, strerror(errno)); 6130 goto out; 6131 } else if (statbuf.st_ino != path_inode) { 6132 (void) fprintf(stderr, gettext("cannot " 6133 "%s '%s': not a mountpoint\n"), cmdname, path); 6134 goto out; 6135 } 6136 6137 if (op == OP_SHARE) { 6138 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6139 char smbshare_prop[ZFS_MAXPROPLEN]; 6140 6141 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6142 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6143 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6144 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6145 6146 if (strcmp(nfs_mnt_prop, "off") == 0 && 6147 strcmp(smbshare_prop, "off") == 0) { 6148 (void) fprintf(stderr, gettext("cannot unshare " 6149 "'%s': legacy share\n"), path); 6150#ifdef illumos 6151 (void) fprintf(stderr, gettext("use " 6152 "unshare(1M) to unshare this filesystem\n")); 6153#endif 6154 } else if (!zfs_is_shared(zhp)) { 6155 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6156 "not currently shared\n"), path); 6157 } else { 6158 ret = zfs_unshareall_bypath(zhp, path); 6159 } 6160 } else { 6161 char mtpt_prop[ZFS_MAXPROPLEN]; 6162 6163 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6164 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6165 6166 if (is_manual) { 6167 ret = zfs_unmount(zhp, NULL, flags); 6168 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6169 (void) fprintf(stderr, gettext("cannot unmount " 6170 "'%s': legacy mountpoint\n"), 6171 zfs_get_name(zhp)); 6172 (void) fprintf(stderr, gettext("use umount(8) " 6173 "to unmount this filesystem\n")); 6174 } else { 6175 ret = zfs_unmountall(zhp, flags); 6176 } 6177 } 6178 6179out: 6180 zfs_close(zhp); 6181 6182 return (ret != 0); 6183} 6184 6185/* 6186 * Generic callback for unsharing or unmounting a filesystem. 6187 */ 6188static int 6189unshare_unmount(int op, int argc, char **argv) 6190{ 6191 int do_all = 0; 6192 int flags = 0; 6193 int ret = 0; 6194 int c; 6195 zfs_handle_t *zhp; 6196 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6197 char sharesmb[ZFS_MAXPROPLEN]; 6198 6199 /* check options */ 6200 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6201 switch (c) { 6202 case 'a': 6203 do_all = 1; 6204 break; 6205 case 'f': 6206 flags = MS_FORCE; 6207 break; 6208 case '?': 6209 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6210 optopt); 6211 usage(B_FALSE); 6212 } 6213 } 6214 6215 argc -= optind; 6216 argv += optind; 6217 6218 if (do_all) { 6219 /* 6220 * We could make use of zfs_for_each() to walk all datasets in 6221 * the system, but this would be very inefficient, especially 6222 * since we would have to linearly search /etc/mnttab for each 6223 * one. Instead, do one pass through /etc/mnttab looking for 6224 * zfs entries and call zfs_unmount() for each one. 6225 * 6226 * Things get a little tricky if the administrator has created 6227 * mountpoints beneath other ZFS filesystems. In this case, we 6228 * have to unmount the deepest filesystems first. To accomplish 6229 * this, we place all the mountpoints in an AVL tree sorted by 6230 * the special type (dataset name), and walk the result in 6231 * reverse to make sure to get any snapshots first. 6232 */ 6233 struct mnttab entry; 6234 uu_avl_pool_t *pool; 6235 uu_avl_t *tree; 6236 unshare_unmount_node_t *node; 6237 uu_avl_index_t idx; 6238 uu_avl_walk_t *walk; 6239 6240 if (argc != 0) { 6241 (void) fprintf(stderr, gettext("too many arguments\n")); 6242 usage(B_FALSE); 6243 } 6244 6245 if (((pool = uu_avl_pool_create("unmount_pool", 6246 sizeof (unshare_unmount_node_t), 6247 offsetof(unshare_unmount_node_t, un_avlnode), 6248 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6249 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6250 nomem(); 6251 6252 rewind(mnttab_file); 6253 while (getmntent(mnttab_file, &entry) == 0) { 6254 6255 /* ignore non-ZFS entries */ 6256 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6257 continue; 6258 6259 /* ignore snapshots */ 6260 if (strchr(entry.mnt_special, '@') != NULL) 6261 continue; 6262 6263 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6264 ZFS_TYPE_FILESYSTEM)) == NULL) { 6265 ret = 1; 6266 continue; 6267 } 6268 6269 switch (op) { 6270 case OP_SHARE: 6271 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6272 nfs_mnt_prop, 6273 sizeof (nfs_mnt_prop), 6274 NULL, NULL, 0, B_FALSE) == 0); 6275 if (strcmp(nfs_mnt_prop, "off") != 0) 6276 break; 6277 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6278 nfs_mnt_prop, 6279 sizeof (nfs_mnt_prop), 6280 NULL, NULL, 0, B_FALSE) == 0); 6281 if (strcmp(nfs_mnt_prop, "off") == 0) 6282 continue; 6283 break; 6284 case OP_MOUNT: 6285 /* Ignore legacy mounts */ 6286 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6287 nfs_mnt_prop, 6288 sizeof (nfs_mnt_prop), 6289 NULL, NULL, 0, B_FALSE) == 0); 6290 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6291 continue; 6292 /* Ignore canmount=noauto mounts */ 6293 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6294 ZFS_CANMOUNT_NOAUTO) 6295 continue; 6296 default: 6297 break; 6298 } 6299 6300 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6301 node->un_zhp = zhp; 6302 node->un_mountp = safe_strdup(entry.mnt_mountp); 6303 6304 uu_avl_node_init(node, &node->un_avlnode, pool); 6305 6306 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6307 uu_avl_insert(tree, node, idx); 6308 } else { 6309 zfs_close(node->un_zhp); 6310 free(node->un_mountp); 6311 free(node); 6312 } 6313 } 6314 6315 /* 6316 * Walk the AVL tree in reverse, unmounting each filesystem and 6317 * removing it from the AVL tree in the process. 6318 */ 6319 if ((walk = uu_avl_walk_start(tree, 6320 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6321 nomem(); 6322 6323 while ((node = uu_avl_walk_next(walk)) != NULL) { 6324 uu_avl_remove(tree, node); 6325 6326 switch (op) { 6327 case OP_SHARE: 6328 if (zfs_unshareall_bypath(node->un_zhp, 6329 node->un_mountp) != 0) 6330 ret = 1; 6331 break; 6332 6333 case OP_MOUNT: 6334 if (zfs_unmount(node->un_zhp, 6335 node->un_mountp, flags) != 0) 6336 ret = 1; 6337 break; 6338 } 6339 6340 zfs_close(node->un_zhp); 6341 free(node->un_mountp); 6342 free(node); 6343 } 6344 6345 uu_avl_walk_end(walk); 6346 uu_avl_destroy(tree); 6347 uu_avl_pool_destroy(pool); 6348 6349 } else { 6350 if (argc != 1) { 6351 if (argc == 0) 6352 (void) fprintf(stderr, 6353 gettext("missing filesystem argument\n")); 6354 else 6355 (void) fprintf(stderr, 6356 gettext("too many arguments\n")); 6357 usage(B_FALSE); 6358 } 6359 6360 /* 6361 * We have an argument, but it may be a full path or a ZFS 6362 * filesystem. Pass full paths off to unmount_path() (shared by 6363 * manual_unmount), otherwise open the filesystem and pass to 6364 * zfs_unmount(). 6365 */ 6366 if (argv[0][0] == '/') 6367 return (unshare_unmount_path(op, argv[0], 6368 flags, B_FALSE)); 6369 6370 if ((zhp = zfs_open(g_zfs, argv[0], 6371 ZFS_TYPE_FILESYSTEM)) == NULL) 6372 return (1); 6373 6374 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6375 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6376 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6377 NULL, 0, B_FALSE) == 0); 6378 6379 switch (op) { 6380 case OP_SHARE: 6381 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6382 nfs_mnt_prop, 6383 sizeof (nfs_mnt_prop), 6384 NULL, NULL, 0, B_FALSE) == 0); 6385 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6386 sharesmb, sizeof (sharesmb), NULL, NULL, 6387 0, B_FALSE) == 0); 6388 6389 if (strcmp(nfs_mnt_prop, "off") == 0 && 6390 strcmp(sharesmb, "off") == 0) { 6391 (void) fprintf(stderr, gettext("cannot " 6392 "unshare '%s': legacy share\n"), 6393 zfs_get_name(zhp)); 6394#ifdef illumos 6395 (void) fprintf(stderr, gettext("use " 6396 "unshare(1M) to unshare this " 6397 "filesystem\n")); 6398#endif 6399 ret = 1; 6400 } else if (!zfs_is_shared(zhp)) { 6401 (void) fprintf(stderr, gettext("cannot " 6402 "unshare '%s': not currently " 6403 "shared\n"), zfs_get_name(zhp)); 6404 ret = 1; 6405 } else if (zfs_unshareall(zhp) != 0) { 6406 ret = 1; 6407 } 6408 break; 6409 6410 case OP_MOUNT: 6411 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6412 (void) fprintf(stderr, gettext("cannot " 6413 "unmount '%s': legacy " 6414 "mountpoint\n"), zfs_get_name(zhp)); 6415 (void) fprintf(stderr, gettext("use " 6416 "umount(8) to unmount this " 6417 "filesystem\n")); 6418 ret = 1; 6419 } else if (!zfs_is_mounted(zhp, NULL)) { 6420 (void) fprintf(stderr, gettext("cannot " 6421 "unmount '%s': not currently " 6422 "mounted\n"), 6423 zfs_get_name(zhp)); 6424 ret = 1; 6425 } else if (zfs_unmountall(zhp, flags) != 0) { 6426 ret = 1; 6427 } 6428 break; 6429 } 6430 6431 zfs_close(zhp); 6432 } 6433 6434 return (ret); 6435} 6436 6437/* 6438 * zfs unmount -a 6439 * zfs unmount filesystem 6440 * 6441 * Unmount all filesystems, or a specific ZFS filesystem. 6442 */ 6443static int 6444zfs_do_unmount(int argc, char **argv) 6445{ 6446 return (unshare_unmount(OP_MOUNT, argc, argv)); 6447} 6448 6449/* 6450 * zfs unshare -a 6451 * zfs unshare filesystem 6452 * 6453 * Unshare all filesystems, or a specific ZFS filesystem. 6454 */ 6455static int 6456zfs_do_unshare(int argc, char **argv) 6457{ 6458 return (unshare_unmount(OP_SHARE, argc, argv)); 6459} 6460 6461/* 6462 * Attach/detach the given dataset to/from the given jail 6463 */ 6464/* ARGSUSED */ 6465static int 6466do_jail(int argc, char **argv, int attach) 6467{ 6468 zfs_handle_t *zhp; 6469 int jailid, ret; 6470 6471 /* check number of arguments */ 6472 if (argc < 3) { 6473 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6474 usage(B_FALSE); 6475 } 6476 if (argc > 3) { 6477 (void) fprintf(stderr, gettext("too many arguments\n")); 6478 usage(B_FALSE); 6479 } 6480 6481 jailid = jail_getid(argv[1]); 6482 if (jailid < 0) { 6483 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 6484 usage(B_FALSE); 6485 } 6486 6487 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6488 if (zhp == NULL) 6489 return (1); 6490 6491 ret = (zfs_jail(zhp, jailid, attach) != 0); 6492 6493 zfs_close(zhp); 6494 return (ret); 6495} 6496 6497/* 6498 * zfs jail jailid filesystem 6499 * 6500 * Attach the given dataset to the given jail 6501 */ 6502/* ARGSUSED */ 6503static int 6504zfs_do_jail(int argc, char **argv) 6505{ 6506 6507 return (do_jail(argc, argv, 1)); 6508} 6509 6510/* 6511 * zfs unjail jailid filesystem 6512 * 6513 * Detach the given dataset from the given jail 6514 */ 6515/* ARGSUSED */ 6516static int 6517zfs_do_unjail(int argc, char **argv) 6518{ 6519 6520 return (do_jail(argc, argv, 0)); 6521} 6522 6523/* 6524 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6525 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6526 */ 6527static int 6528manual_mount(int argc, char **argv) 6529{ 6530 zfs_handle_t *zhp; 6531 char mountpoint[ZFS_MAXPROPLEN]; 6532 char mntopts[MNT_LINE_MAX] = { '\0' }; 6533 int ret = 0; 6534 int c; 6535 int flags = 0; 6536 char *dataset, *path; 6537 6538 /* check options */ 6539 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6540 switch (c) { 6541 case 'o': 6542 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6543 break; 6544 case 'O': 6545 flags |= MS_OVERLAY; 6546 break; 6547 case 'm': 6548 flags |= MS_NOMNTTAB; 6549 break; 6550 case ':': 6551 (void) fprintf(stderr, gettext("missing argument for " 6552 "'%c' option\n"), optopt); 6553 usage(B_FALSE); 6554 break; 6555 case '?': 6556 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6557 optopt); 6558 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6559 "<path>\n")); 6560 return (2); 6561 } 6562 } 6563 6564 argc -= optind; 6565 argv += optind; 6566 6567 /* check that we only have two arguments */ 6568 if (argc != 2) { 6569 if (argc == 0) 6570 (void) fprintf(stderr, gettext("missing dataset " 6571 "argument\n")); 6572 else if (argc == 1) 6573 (void) fprintf(stderr, 6574 gettext("missing mountpoint argument\n")); 6575 else 6576 (void) fprintf(stderr, gettext("too many arguments\n")); 6577 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6578 return (2); 6579 } 6580 6581 dataset = argv[0]; 6582 path = argv[1]; 6583 6584 /* try to open the dataset */ 6585 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6586 return (1); 6587 6588 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6589 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6590 6591 /* check for legacy mountpoint and complain appropriately */ 6592 ret = 0; 6593 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6594 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6595 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6596 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6597 strerror(errno)); 6598 ret = 1; 6599 } 6600 } else { 6601 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6602 "mounted using 'mount -t zfs'\n"), dataset); 6603 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6604 "instead.\n"), path); 6605 (void) fprintf(stderr, gettext("If you must use 'mount -t zfs' " 6606 "or /etc/fstab, use 'zfs set mountpoint=legacy'.\n")); 6607 (void) fprintf(stderr, gettext("See zfs(8) for more " 6608 "information.\n")); 6609 ret = 1; 6610 } 6611 6612 return (ret); 6613} 6614 6615/* 6616 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6617 * unmounts of non-legacy filesystems, as this is the dominant administrative 6618 * interface. 6619 */ 6620static int 6621manual_unmount(int argc, char **argv) 6622{ 6623 int flags = 0; 6624 int c; 6625 6626 /* check options */ 6627 while ((c = getopt(argc, argv, "f")) != -1) { 6628 switch (c) { 6629 case 'f': 6630 flags = MS_FORCE; 6631 break; 6632 case '?': 6633 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6634 optopt); 6635 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6636 "<path>\n")); 6637 return (2); 6638 } 6639 } 6640 6641 argc -= optind; 6642 argv += optind; 6643 6644 /* check arguments */ 6645 if (argc != 1) { 6646 if (argc == 0) 6647 (void) fprintf(stderr, gettext("missing path " 6648 "argument\n")); 6649 else 6650 (void) fprintf(stderr, gettext("too many arguments\n")); 6651 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6652 return (2); 6653 } 6654 6655 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6656} 6657 6658static int 6659find_command_idx(char *command, int *idx) 6660{ 6661 int i; 6662 6663 for (i = 0; i < NCOMMAND; i++) { 6664 if (command_table[i].name == NULL) 6665 continue; 6666 6667 if (strcmp(command, command_table[i].name) == 0) { 6668 *idx = i; 6669 return (0); 6670 } 6671 } 6672 return (1); 6673} 6674 6675static int 6676zfs_do_diff(int argc, char **argv) 6677{ 6678 zfs_handle_t *zhp; 6679 int flags = 0; 6680 char *tosnap = NULL; 6681 char *fromsnap = NULL; 6682 char *atp, *copy; 6683 int err = 0; 6684 int c; 6685 6686 while ((c = getopt(argc, argv, "FHt")) != -1) { 6687 switch (c) { 6688 case 'F': 6689 flags |= ZFS_DIFF_CLASSIFY; 6690 break; 6691 case 'H': 6692 flags |= ZFS_DIFF_PARSEABLE; 6693 break; 6694 case 't': 6695 flags |= ZFS_DIFF_TIMESTAMP; 6696 break; 6697 default: 6698 (void) fprintf(stderr, 6699 gettext("invalid option '%c'\n"), optopt); 6700 usage(B_FALSE); 6701 } 6702 } 6703 6704 argc -= optind; 6705 argv += optind; 6706 6707 if (argc < 1) { 6708 (void) fprintf(stderr, 6709 gettext("must provide at least one snapshot name\n")); 6710 usage(B_FALSE); 6711 } 6712 6713 if (argc > 2) { 6714 (void) fprintf(stderr, gettext("too many arguments\n")); 6715 usage(B_FALSE); 6716 } 6717 6718 fromsnap = argv[0]; 6719 tosnap = (argc == 2) ? argv[1] : NULL; 6720 6721 copy = NULL; 6722 if (*fromsnap != '@') 6723 copy = strdup(fromsnap); 6724 else if (tosnap) 6725 copy = strdup(tosnap); 6726 if (copy == NULL) 6727 usage(B_FALSE); 6728 6729 if (atp = strchr(copy, '@')) 6730 *atp = '\0'; 6731 6732 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6733 return (1); 6734 6735 free(copy); 6736 6737 /* 6738 * Ignore SIGPIPE so that the library can give us 6739 * information on any failure 6740 */ 6741 (void) sigignore(SIGPIPE); 6742 6743 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6744 6745 zfs_close(zhp); 6746 6747 return (err != 0); 6748} 6749 6750/* 6751 * zfs bookmark <fs@snap> <fs#bmark> 6752 * 6753 * Creates a bookmark with the given name from the given snapshot. 6754 */ 6755static int 6756zfs_do_bookmark(int argc, char **argv) 6757{ 6758 char snapname[ZFS_MAXNAMELEN]; 6759 zfs_handle_t *zhp; 6760 nvlist_t *nvl; 6761 int ret = 0; 6762 int c; 6763 6764 /* check options */ 6765 while ((c = getopt(argc, argv, "")) != -1) { 6766 switch (c) { 6767 case '?': 6768 (void) fprintf(stderr, 6769 gettext("invalid option '%c'\n"), optopt); 6770 goto usage; 6771 } 6772 } 6773 6774 argc -= optind; 6775 argv += optind; 6776 6777 /* check number of arguments */ 6778 if (argc < 1) { 6779 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6780 goto usage; 6781 } 6782 if (argc < 2) { 6783 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6784 goto usage; 6785 } 6786 6787 if (strchr(argv[1], '#') == NULL) { 6788 (void) fprintf(stderr, 6789 gettext("invalid bookmark name '%s' -- " 6790 "must contain a '#'\n"), argv[1]); 6791 goto usage; 6792 } 6793 6794 if (argv[0][0] == '@') { 6795 /* 6796 * Snapshot name begins with @. 6797 * Default to same fs as bookmark. 6798 */ 6799 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6800 *strchr(snapname, '#') = '\0'; 6801 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6802 } else { 6803 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6804 } 6805 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6806 if (zhp == NULL) 6807 goto usage; 6808 zfs_close(zhp); 6809 6810 6811 nvl = fnvlist_alloc(); 6812 fnvlist_add_string(nvl, argv[1], snapname); 6813 ret = lzc_bookmark(nvl, NULL); 6814 fnvlist_free(nvl); 6815 6816 if (ret != 0) { 6817 const char *err_msg; 6818 char errbuf[1024]; 6819 6820 (void) snprintf(errbuf, sizeof (errbuf), 6821 dgettext(TEXT_DOMAIN, 6822 "cannot create bookmark '%s'"), argv[1]); 6823 6824 switch (ret) { 6825 case EXDEV: 6826 err_msg = "bookmark is in a different pool"; 6827 break; 6828 case EEXIST: 6829 err_msg = "bookmark exists"; 6830 break; 6831 case EINVAL: 6832 err_msg = "invalid argument"; 6833 break; 6834 case ENOTSUP: 6835 err_msg = "bookmark feature not enabled"; 6836 break; 6837 default: 6838 err_msg = "unknown error"; 6839 break; 6840 } 6841 (void) fprintf(stderr, "%s: %s\n", errbuf, 6842 dgettext(TEXT_DOMAIN, err_msg)); 6843 } 6844 6845 return (ret); 6846 6847usage: 6848 usage(B_FALSE); 6849 return (-1); 6850} 6851 6852int 6853main(int argc, char **argv) 6854{ 6855 int ret = 0; 6856 int i; 6857 char *progname; 6858 char *cmdname; 6859 6860 (void) setlocale(LC_ALL, ""); 6861 (void) textdomain(TEXT_DOMAIN); 6862 6863 opterr = 0; 6864 6865 if ((g_zfs = libzfs_init()) == NULL) { 6866 (void) fprintf(stderr, gettext("internal error: failed to " 6867 "initialize ZFS library\n")); 6868 return (1); 6869 } 6870 6871 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6872 6873 libzfs_print_on_error(g_zfs, B_TRUE); 6874 6875 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6876 (void) fprintf(stderr, gettext("internal error: unable to " 6877 "open %s\n"), MNTTAB); 6878 return (1); 6879 } 6880 6881 /* 6882 * This command also doubles as the /etc/fs mount and unmount program. 6883 * Determine if we should take this behavior based on argv[0]. 6884 */ 6885 progname = basename(argv[0]); 6886 if (strcmp(progname, "mount") == 0) { 6887 ret = manual_mount(argc, argv); 6888 } else if (strcmp(progname, "umount") == 0) { 6889 ret = manual_unmount(argc, argv); 6890 } else { 6891 /* 6892 * Make sure the user has specified some command. 6893 */ 6894 if (argc < 2) { 6895 (void) fprintf(stderr, gettext("missing command\n")); 6896 usage(B_FALSE); 6897 } 6898 6899 cmdname = argv[1]; 6900 6901 /* 6902 * The 'umount' command is an alias for 'unmount' 6903 */ 6904 if (strcmp(cmdname, "umount") == 0) 6905 cmdname = "unmount"; 6906 6907 /* 6908 * The 'recv' command is an alias for 'receive' 6909 */ 6910 if (strcmp(cmdname, "recv") == 0) 6911 cmdname = "receive"; 6912 6913 /* 6914 * The 'snap' command is an alias for 'snapshot' 6915 */ 6916 if (strcmp(cmdname, "snap") == 0) 6917 cmdname = "snapshot"; 6918 6919 /* 6920 * Special case '-?' 6921 */ 6922 if (strcmp(cmdname, "-?") == 0) 6923 usage(B_TRUE); 6924 6925 /* 6926 * Run the appropriate command. 6927 */ 6928 libzfs_mnttab_cache(g_zfs, B_TRUE); 6929 if (find_command_idx(cmdname, &i) == 0) { 6930 current_command = &command_table[i]; 6931 ret = command_table[i].func(argc - 1, argv + 1); 6932 } else if (strchr(cmdname, '=') != NULL) { 6933 verify(find_command_idx("set", &i) == 0); 6934 current_command = &command_table[i]; 6935 ret = command_table[i].func(argc, argv); 6936 } else { 6937 (void) fprintf(stderr, gettext("unrecognized " 6938 "command '%s'\n"), cmdname); 6939 usage(B_FALSE); 6940 } 6941 libzfs_mnttab_cache(g_zfs, B_FALSE); 6942 } 6943 6944 (void) fclose(mnttab_file); 6945 6946 if (ret == 0 && log_history) 6947 (void) zpool_log_history(g_zfs, history_str); 6948 6949 libzfs_fini(g_zfs); 6950 6951 /* 6952 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6953 * for the purposes of running ::findleaks. 6954 */ 6955 if (getenv("ZFS_ABORT") != NULL) { 6956 (void) printf("dumping core by request\n"); 6957 abort(); 6958 } 6959 6960 return (ret); 6961} 6962