1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 29 */ 30 31 #include <assert.h> 32 #include <ctype.h> 33 #include <errno.h> 34 #include <libgen.h> 35 #include <libintl.h> 36 #include <libuutil.h> 37 #include <libnvpair.h> 38 #include <locale.h> 39 #include <stddef.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <strings.h> 43 #include <unistd.h> 44 #include <fcntl.h> 45 #include <zone.h> 46 #include <grp.h> 47 #include <pwd.h> 48 #include <signal.h> 49 #include <sys/list.h> 50 #include <sys/mkdev.h> 51 #include <sys/mntent.h> 52 #include <sys/mnttab.h> 53 #include <sys/mount.h> 54 #include <sys/stat.h> 55 #include <sys/fs/zfs.h> 56 #include <sys/types.h> 57 #include <time.h> 58 #include <syslog.h> 59 60 #include <libzfs.h> 61 #include <libzfs_core.h> 62 #include <zfs_prop.h> 63 #include <zfs_deleg.h> 64 #include <libuutil.h> 65 #include <aclutils.h> 66 #include <directory.h> 67 #include <idmap.h> 68 #include <limits.h> 69 70 #include "zfs_iter.h" 71 #include "zfs_util.h" 72 #include "zfs_comutil.h" 73 74 #define XVERSION "1.2" 75 #define STG_POOL_FILE "/etc/stg/self.pool" 76 #define POOL_NAME_LEN 5 77 78 static int dataset_type = 0; /* decides which datasets we should print */ 79 80 libzfs_handle_t *g_zfs; 81 82 static FILE *mnttab_file; 83 static char history_str[HIS_MAX_RECORD_LEN]; 84 static boolean_t log_history = B_TRUE; 85 86 static int zfs_do_clone(int argc, char **argv); 87 static int zfs_do_create(int argc, char **argv); 88 static int zfs_do_destroy(int argc, char **argv); 89 static int zfs_do_get(int argc, char **argv); 90 static int zfs_do_inherit(int argc, char **argv); 91 static int zfs_do_list(int argc, char **argv); 92 static int zfs_do_mount(int argc, char **argv); 93 static int zfs_do_rename(int argc, char **argv); 94 static int zfs_do_rollback(int argc, char **argv); 95 static int zfs_do_set(int argc, char **argv); 96 static int zfs_do_upgrade(int argc, char **argv); 97 static int zfs_do_snapshot(int argc, char **argv); 98 static int zfs_do_unmount(int argc, char **argv); 99 static int zfs_do_share(int argc, char **argv); 100 static int zfs_do_unshare(int argc, char **argv); 101 static int zfs_do_send(int argc, char **argv); 102 static int zfs_do_receive(int argc, char **argv); 103 static int zfs_do_promote(int argc, char **argv); 104 static int zfs_do_userspace(int argc, char **argv); 105 static int zfs_do_allow(int argc, char **argv); 106 static int zfs_do_unallow(int argc, char **argv); 107 static int zfs_do_hold(int argc, char **argv); 108 static int zfs_do_holds(int argc, char **argv); 109 static int zfs_do_release(int argc, char **argv); 110 static int zfs_do_diff(int argc, char **argv); 111 static int zfs_do_bookmark(int argc, char **argv); 112 static int zfs_do_xlist(int argc, char **argv); 113 static int zfs_do_xget(int argc, char **argv); 114 115 /* 116 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 117 */ 118 119 #ifdef DEBUG 120 const char * 121 _umem_debug_init(void) 122 { 123 return ("default,verbose"); /* $UMEM_DEBUG setting */ 124 } 125 126 const char * 127 _umem_logging_init(void) 128 { 129 return ("fail,contents"); /* $UMEM_LOGGING setting */ 130 } 131 #endif 132 133 typedef enum { 134 HELP_CLONE, 135 HELP_CREATE, 136 HELP_DESTROY, 137 HELP_GET, 138 HELP_INHERIT, 139 HELP_UPGRADE, 140 HELP_LIST, 141 HELP_MOUNT, 142 HELP_PROMOTE, 143 HELP_RECEIVE, 144 HELP_RENAME, 145 HELP_ROLLBACK, 146 HELP_SEND, 147 HELP_SET, 148 HELP_SHARE, 149 HELP_SNAPSHOT, 150 HELP_UNMOUNT, 151 HELP_UNSHARE, 152 HELP_ALLOW, 153 HELP_UNALLOW, 154 HELP_USERSPACE, 155 HELP_GROUPSPACE, 156 HELP_HOLD, 157 HELP_HOLDS, 158 HELP_RELEASE, 159 HELP_DIFF, 160 HELP_BOOKMARK, 161 HELP_XLIST, 162 HELP_XGET, 163 } zfs_help_t; 164 165 typedef struct zfs_command { 166 const char *name; 167 int (*func)(int argc, char **argv); 168 zfs_help_t usage; 169 } zfs_command_t; 170 171 /* 172 * Master command table. Each ZFS command has a name, associated function, and 173 * usage message. The usage messages need to be internationalized, so we have 174 * to have a function to return the usage message based on a command index. 175 * 176 * These commands are organized according to how they are displayed in the usage 177 * message. An empty command (one with a NULL name) indicates an empty line in 178 * the generic usage message. 179 */ 180 static zfs_command_t command_table[] = { 181 { "create", zfs_do_create, HELP_CREATE }, 182 { "destroy", zfs_do_destroy, HELP_DESTROY }, 183 { NULL }, 184 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 185 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 186 { "clone", zfs_do_clone, HELP_CLONE }, 187 { "promote", zfs_do_promote, HELP_PROMOTE }, 188 { "rename", zfs_do_rename, HELP_RENAME }, 189 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 190 { NULL }, 191 { "list", zfs_do_list, HELP_LIST }, 192 { NULL }, 193 { "set", zfs_do_set, HELP_SET }, 194 { "get", zfs_do_get, HELP_GET }, 195 { "inherit", zfs_do_inherit, HELP_INHERIT }, 196 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 197 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 198 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 199 { NULL }, 200 { "mount", zfs_do_mount, HELP_MOUNT }, 201 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 202 { "share", zfs_do_share, HELP_SHARE }, 203 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 204 { NULL }, 205 { "send", zfs_do_send, HELP_SEND }, 206 { "receive", zfs_do_receive, HELP_RECEIVE }, 207 { NULL }, 208 { "allow", zfs_do_allow, HELP_ALLOW }, 209 { NULL }, 210 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 211 { NULL }, 212 { "hold", zfs_do_hold, HELP_HOLD }, 213 { "holds", zfs_do_holds, HELP_HOLDS }, 214 { "release", zfs_do_release, HELP_RELEASE }, 215 { "diff", zfs_do_diff, HELP_DIFF }, 216 { "xlist", zfs_do_xlist, HELP_XLIST }, 217 { "xget", zfs_do_xget, HELP_XGET }, 218 }; 219 220 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 221 222 zfs_command_t *current_command; 223 224 static const char * 225 get_usage(zfs_help_t idx) 226 { 227 switch (idx) { 228 case HELP_CLONE: 229 return (gettext("\tclone [-p] [-o property=value] ... " 230 "<snapshot> <filesystem|volume>\n")); 231 case HELP_CREATE: 232 return (gettext("\tcreate [-p] [-o property=value] ... " 233 "<filesystem>\n" 234 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 235 "-V <size> <volume>\n")); 236 case HELP_DESTROY: 237 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 238 "\tdestroy [-dnpRrv] " 239 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 240 "\tdestroy <filesystem|volume>#<bookmark>\n")); 241 case HELP_GET: 242 return (gettext("\tget [-rHp] [-d max] " 243 "[-o \"all\" | field[,...]]\n" 244 "\t [-t type[,...]] [-s source[,...]]\n" 245 "\t <\"all\" | property[,...]> " 246 "[filesystem|volume|snapshot|bookmark] ...\n")); 247 case HELP_INHERIT: 248 return (gettext("\tinherit [-rS] <property> " 249 "<filesystem|volume|snapshot> ...\n")); 250 case HELP_UPGRADE: 251 return (gettext("\tupgrade [-v]\n" 252 "\tupgrade [-r] [-V version] <-a | 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 [-vnsFu] <filesystem|volume|" 264 "snapshot>\n" 265 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 266 "<filesystem>\n" 267 "\treceive -A <filesystem|volume>\n")); 268 case HELP_RENAME: 269 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 270 "<filesystem|volume|snapshot>\n" 271 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 272 "\trename -r <snapshot> <snapshot>\n")); 273 case HELP_ROLLBACK: 274 return (gettext("\trollback [-rRf] <snapshot>\n")); 275 case HELP_SEND: 276 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 277 "<snapshot>\n" 278 "\tsend [-Le] [-i snapshot|bookmark] " 279 "<filesystem|volume|snapshot>\n" 280 "\tsend [-nvPe] -t <receive_resume_token>\n")); 281 case HELP_SET: 282 return (gettext("\tset <property=value> ... " 283 "<filesystem|volume|snapshot> ...\n")); 284 case HELP_SHARE: 285 return (gettext("\tshare <-a | filesystem>\n")); 286 case HELP_SNAPSHOT: 287 return (gettext("\tsnapshot [-r] [-o property=value] ... " 288 "<filesystem|volume>@<snap> ...\n")); 289 case HELP_UNMOUNT: 290 return (gettext("\tunmount [-f] " 291 "<-a | filesystem|mountpoint>\n")); 292 case HELP_UNSHARE: 293 return (gettext("\tunshare " 294 "<-a | filesystem|mountpoint>\n")); 295 case HELP_ALLOW: 296 return (gettext("\tallow <filesystem|volume>\n" 297 "\tallow [-ldug] " 298 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 299 "\t <filesystem|volume>\n" 300 "\tallow [-ld] -e <perm|@setname>[,...] " 301 "<filesystem|volume>\n" 302 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 303 "\tallow -s @setname <perm|@setname>[,...] " 304 "<filesystem|volume>\n")); 305 case HELP_UNALLOW: 306 return (gettext("\tunallow [-rldug] " 307 "<\"everyone\"|user|group>[,...]\n" 308 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 309 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 310 "<filesystem|volume>\n" 311 "\tunallow [-r] -c [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n" 313 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 314 "<filesystem|volume>\n")); 315 case HELP_USERSPACE: 316 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 317 "[-s field] ...\n" 318 "\t [-S field] ... [-t type[,...]] " 319 "<filesystem|snapshot>\n")); 320 case HELP_GROUPSPACE: 321 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 322 "[-s field] ...\n" 323 "\t [-S field] ... [-t type[,...]] " 324 "<filesystem|snapshot>\n")); 325 case HELP_HOLD: 326 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 327 case HELP_HOLDS: 328 return (gettext("\tholds [-r] <snapshot> ...\n")); 329 case HELP_RELEASE: 330 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 331 case HELP_DIFF: 332 return (gettext("\tdiff [-FHt] <snapshot> " 333 "[snapshot|filesystem]\n")); 334 case HELP_XLIST: 335 return (gettext("\n\txlist [-a] [-r <rid>] [-s] [-S <rid>] " 336 "[filesystem]\n\n" 337 "\t-a: print filesystems, bookmarks, and snapshots\n" 338 "\t-b: print bookmarks only\n" 339 "\t-r: iterate over rid fs\n" 340 "\t-s: print snapshots only\n" 341 "\t-S: print space path\n" 342 "\t-v: print rzfs version\n" 343 "\nDefault: print filesystems only\n")); 344 case HELP_XGET: 345 return (gettext("\n\txget [-a] [-r <rid>] [-s] [-S <rid>] " 346 "[-p <prop1,prop2...>] [filesystem]\n\n" 347 "\t-a: print filesystems, bookmarks, and snapshots\n" 348 "\t-b: print bookmarks only\n" 349 "\t-p: list of properties to print\n" 350 "\t-r: iterate over rid fs\n" 351 "\t-s: print snapshots only\n" 352 "\t-v: print rzfs version\n" 353 "\nDefault: print filesystems only\n")); 354 case HELP_BOOKMARK: 355 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 356 } 357 358 abort(); 359 /* NOTREACHED */ 360 } 361 362 void 363 nomem(void) 364 { 365 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 366 exit(1); 367 } 368 369 /* 370 * Utility function to guarantee malloc() success. 371 */ 372 373 void * 374 safe_malloc(size_t size) 375 { 376 void *data; 377 378 if ((data = calloc(1, size)) == NULL) 379 nomem(); 380 381 return (data); 382 } 383 384 static char * 385 safe_strdup(char *str) 386 { 387 char *dupstr = strdup(str); 388 389 if (dupstr == NULL) 390 nomem(); 391 392 return (dupstr); 393 } 394 395 /* 396 * Callback routine that will print out information for each of 397 * the properties. 398 */ 399 static int 400 usage_prop_cb(int prop, void *cb) 401 { 402 FILE *fp = cb; 403 404 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 405 406 if (zfs_prop_readonly(prop)) 407 (void) fprintf(fp, " NO "); 408 else 409 (void) fprintf(fp, "YES "); 410 411 if (zfs_prop_inheritable(prop)) 412 (void) fprintf(fp, " YES "); 413 else 414 (void) fprintf(fp, " NO "); 415 416 if (zfs_prop_values(prop) == NULL) 417 (void) fprintf(fp, "-\n"); 418 else 419 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 420 421 return (ZPROP_CONT); 422 } 423 424 /* 425 * Display usage message. If we're inside a command, display only the usage for 426 * that command. Otherwise, iterate over the entire command table and display 427 * a complete usage message. 428 */ 429 static void 430 usage(boolean_t requested) 431 { 432 int i; 433 boolean_t show_properties = B_FALSE; 434 FILE *fp = requested ? stdout : stderr; 435 436 if (current_command == NULL) { 437 438 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 439 (void) fprintf(fp, 440 gettext("where 'command' is one of the following:\n\n")); 441 442 for (i = 0; i < NCOMMAND; i++) { 443 if (command_table[i].name == NULL) 444 (void) fprintf(fp, "\n"); 445 else 446 (void) fprintf(fp, "%s", 447 get_usage(command_table[i].usage)); 448 } 449 450 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 451 "pool/[dataset/]*dataset[@name]\n")); 452 } else { 453 (void) fprintf(fp, gettext("usage:\n")); 454 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 455 } 456 457 if (current_command != NULL && 458 (strcmp(current_command->name, "set") == 0 || 459 strcmp(current_command->name, "get") == 0 || 460 strcmp(current_command->name, "inherit") == 0 || 461 strcmp(current_command->name, "list") == 0)) 462 show_properties = B_TRUE; 463 464 if (show_properties) { 465 (void) fprintf(fp, 466 gettext("\nThe following properties are supported:\n")); 467 468 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 469 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 470 471 /* Iterate over all properties */ 472 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 473 ZFS_TYPE_DATASET); 474 475 (void) fprintf(fp, "\t%-15s ", "userused@..."); 476 (void) fprintf(fp, " NO NO <size>\n"); 477 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 478 (void) fprintf(fp, " NO NO <size>\n"); 479 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 480 (void) fprintf(fp, "YES NO <size> | none\n"); 481 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 482 (void) fprintf(fp, "YES NO <size> | none\n"); 483 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 484 (void) fprintf(fp, " NO NO <size>\n"); 485 486 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 487 "with standard units such as K, M, G, etc.\n")); 488 (void) fprintf(fp, gettext("\nUser-defined properties can " 489 "be specified by using a name containing a colon (:).\n")); 490 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 491 "properties must be appended with\n" 492 "a user or group specifier of one of these forms:\n" 493 " POSIX name (eg: \"matt\")\n" 494 " POSIX id (eg: \"126829\")\n" 495 " SMB name@domain (eg: \"matt@sun\")\n" 496 " SMB SID (eg: \"S-1-234-567-89\")\n")); 497 } else { 498 (void) fprintf(fp, 499 gettext("\nFor the property list, run: %s\n"), 500 "zfs set|get"); 501 (void) fprintf(fp, 502 gettext("\nFor the delegated permission list, run: %s\n"), 503 "zfs allow|unallow"); 504 } 505 506 /* 507 * See comments at end of main(). 508 */ 509 if (getenv("ZFS_ABORT") != NULL) { 510 (void) printf("dumping core by request\n"); 511 abort(); 512 } 513 514 exit(requested ? 0 : 2); 515 } 516 517 /* 518 * Take a property=value argument string and add it to the given nvlist. 519 * Modifies the argument inplace. 520 */ 521 static int 522 parseprop(nvlist_t *props, char *propname) 523 { 524 char *propval, *strval; 525 526 if ((propval = strchr(propname, '=')) == NULL) { 527 (void) fprintf(stderr, gettext("missing " 528 "'=' for property=value argument\n")); 529 return (-1); 530 } 531 *propval = '\0'; 532 propval++; 533 if (nvlist_lookup_string(props, propname, &strval) == 0) { 534 (void) fprintf(stderr, gettext("property '%s' " 535 "specified multiple times\n"), propname); 536 return (-1); 537 } 538 if (nvlist_add_string(props, propname, propval) != 0) 539 nomem(); 540 return (0); 541 } 542 543 static int 544 parse_depth(char *opt, int *flags) 545 { 546 char *tmp; 547 int depth; 548 549 depth = (int)strtol(opt, &tmp, 0); 550 if (*tmp) { 551 (void) fprintf(stderr, 552 gettext("%s is not an integer\n"), optarg); 553 usage(B_FALSE); 554 } 555 if (depth < 0) { 556 (void) fprintf(stderr, 557 gettext("Depth can not be negative.\n")); 558 usage(B_FALSE); 559 } 560 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 561 return (depth); 562 } 563 564 #define PROGRESS_DELAY 2 /* seconds */ 565 566 static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; 567 static time_t pt_begin; 568 static char *pt_header = NULL; 569 static boolean_t pt_shown; 570 571 static void 572 start_progress_timer(void) 573 { 574 pt_begin = time(NULL) + PROGRESS_DELAY; 575 pt_shown = B_FALSE; 576 } 577 578 static void 579 set_progress_header(char *header) 580 { 581 assert(pt_header == NULL); 582 pt_header = safe_strdup(header); 583 if (pt_shown) { 584 (void) printf("%s: ", header); 585 (void) fflush(stdout); 586 } 587 } 588 589 static void 590 update_progress(char *update) 591 { 592 if (!pt_shown && time(NULL) > pt_begin) { 593 int len = strlen(update); 594 595 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 596 pt_reverse); 597 (void) fflush(stdout); 598 pt_shown = B_TRUE; 599 } else if (pt_shown) { 600 int len = strlen(update); 601 602 (void) printf("%s%*.*s", update, len, len, pt_reverse); 603 (void) fflush(stdout); 604 } 605 } 606 607 static void 608 finish_progress(char *done) 609 { 610 if (pt_shown) { 611 (void) printf("%s\n", done); 612 (void) fflush(stdout); 613 } 614 free(pt_header); 615 pt_header = NULL; 616 } 617 618 /* 619 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 620 * 621 * Given an existing dataset, create a writable copy whose initial contents 622 * are the same as the source. The newly created dataset maintains a 623 * dependency on the original; the original cannot be destroyed so long as 624 * the clone exists. 625 * 626 * The '-p' flag creates all the non-existing ancestors of the target first. 627 */ 628 static int 629 zfs_do_clone(int argc, char **argv) 630 { 631 zfs_handle_t *zhp = NULL; 632 boolean_t parents = B_FALSE; 633 nvlist_t *props; 634 int ret = 0; 635 int c; 636 637 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 638 nomem(); 639 640 /* check options */ 641 while ((c = getopt(argc, argv, "o:p")) != -1) { 642 switch (c) { 643 case 'o': 644 if (parseprop(props, optarg) != 0) 645 return (1); 646 break; 647 case 'p': 648 parents = B_TRUE; 649 break; 650 case '?': 651 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 652 optopt); 653 goto usage; 654 } 655 } 656 657 argc -= optind; 658 argv += optind; 659 660 /* check number of arguments */ 661 if (argc < 1) { 662 (void) fprintf(stderr, gettext("missing source dataset " 663 "argument\n")); 664 goto usage; 665 } 666 if (argc < 2) { 667 (void) fprintf(stderr, gettext("missing target dataset " 668 "argument\n")); 669 goto usage; 670 } 671 if (argc > 2) { 672 (void) fprintf(stderr, gettext("too many arguments\n")); 673 goto usage; 674 } 675 676 /* open the source dataset */ 677 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 678 return (1); 679 680 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 681 ZFS_TYPE_VOLUME)) { 682 /* 683 * Now create the ancestors of the target dataset. If the 684 * target already exists and '-p' option was used we should not 685 * complain. 686 */ 687 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 688 ZFS_TYPE_VOLUME)) 689 return (0); 690 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 691 return (1); 692 } 693 694 /* pass to libzfs */ 695 ret = zfs_clone(zhp, argv[1], props); 696 697 /* create the mountpoint if necessary */ 698 if (ret == 0) { 699 zfs_handle_t *clone; 700 701 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 702 if (clone != NULL) { 703 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 704 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 705 ret = zfs_share(clone); 706 zfs_close(clone); 707 } 708 } 709 710 zfs_close(zhp); 711 nvlist_free(props); 712 713 return (!!ret); 714 715 usage: 716 if (zhp) 717 zfs_close(zhp); 718 nvlist_free(props); 719 usage(B_FALSE); 720 return (-1); 721 } 722 723 /* 724 * zfs create [-p] [-o prop=value] ... fs 725 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 726 * 727 * Create a new dataset. This command can be used to create filesystems 728 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 729 * For volumes, the user must specify a size to be used. 730 * 731 * The '-s' flag applies only to volumes, and indicates that we should not try 732 * to set the reservation for this volume. By default we set a reservation 733 * equal to the size for any volume. For pools with SPA_VERSION >= 734 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 735 * 736 * The '-p' flag creates all the non-existing ancestors of the target first. 737 */ 738 static int 739 zfs_do_create(int argc, char **argv) 740 { 741 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 742 zfs_handle_t *zhp = NULL; 743 uint64_t volsize; 744 int c; 745 boolean_t noreserve = B_FALSE; 746 boolean_t bflag = B_FALSE; 747 boolean_t parents = B_FALSE; 748 int ret = 1; 749 nvlist_t *props; 750 uint64_t intval; 751 int canmount = ZFS_CANMOUNT_OFF; 752 753 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 754 nomem(); 755 756 /* check options */ 757 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 758 switch (c) { 759 case 'V': 760 type = ZFS_TYPE_VOLUME; 761 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 762 (void) fprintf(stderr, gettext("bad volume " 763 "size '%s': %s\n"), optarg, 764 libzfs_error_description(g_zfs)); 765 goto error; 766 } 767 768 if (nvlist_add_uint64(props, 769 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 770 nomem(); 771 volsize = intval; 772 break; 773 case 'p': 774 parents = B_TRUE; 775 break; 776 case 'b': 777 bflag = B_TRUE; 778 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 779 (void) fprintf(stderr, gettext("bad volume " 780 "block size '%s': %s\n"), optarg, 781 libzfs_error_description(g_zfs)); 782 goto error; 783 } 784 785 if (nvlist_add_uint64(props, 786 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 787 intval) != 0) 788 nomem(); 789 break; 790 case 'o': 791 if (parseprop(props, optarg) != 0) 792 goto error; 793 break; 794 case 's': 795 noreserve = B_TRUE; 796 break; 797 case ':': 798 (void) fprintf(stderr, gettext("missing size " 799 "argument\n")); 800 goto badusage; 801 case '?': 802 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 803 optopt); 804 goto badusage; 805 } 806 } 807 808 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 809 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 810 "used when creating a volume\n")); 811 goto badusage; 812 } 813 814 argc -= optind; 815 argv += optind; 816 817 /* check number of arguments */ 818 if (argc == 0) { 819 (void) fprintf(stderr, gettext("missing %s argument\n"), 820 zfs_type_to_name(type)); 821 goto badusage; 822 } 823 if (argc > 1) { 824 (void) fprintf(stderr, gettext("too many arguments\n")); 825 goto badusage; 826 } 827 828 if (type == ZFS_TYPE_VOLUME && !noreserve) { 829 zpool_handle_t *zpool_handle; 830 nvlist_t *real_props; 831 uint64_t spa_version; 832 char *p; 833 zfs_prop_t resv_prop; 834 char *strval; 835 char msg[1024]; 836 837 if (p = strchr(argv[0], '/')) 838 *p = '\0'; 839 zpool_handle = zpool_open(g_zfs, argv[0]); 840 if (p != NULL) 841 *p = '/'; 842 if (zpool_handle == NULL) 843 goto error; 844 spa_version = zpool_get_prop_int(zpool_handle, 845 ZPOOL_PROP_VERSION, NULL); 846 zpool_close(zpool_handle); 847 if (spa_version >= SPA_VERSION_REFRESERVATION) 848 resv_prop = ZFS_PROP_REFRESERVATION; 849 else 850 resv_prop = ZFS_PROP_RESERVATION; 851 852 (void) snprintf(msg, sizeof (msg), 853 gettext("cannot create '%s'"), argv[0]); 854 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 855 props, 0, NULL, msg)) == NULL) 856 goto error; 857 858 volsize = zvol_volsize_to_reservation(volsize, real_props); 859 nvlist_free(real_props); 860 861 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 862 &strval) != 0) { 863 if (nvlist_add_uint64(props, 864 zfs_prop_to_name(resv_prop), volsize) != 0) { 865 nvlist_free(props); 866 nomem(); 867 } 868 } 869 } 870 871 if (parents && zfs_name_valid(argv[0], type)) { 872 /* 873 * Now create the ancestors of target dataset. If the target 874 * already exists and '-p' option was used we should not 875 * complain. 876 */ 877 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 878 ret = 0; 879 goto error; 880 } 881 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 882 goto error; 883 } 884 885 /* pass to libzfs */ 886 if (zfs_create(g_zfs, argv[0], type, props) != 0) 887 goto error; 888 889 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 890 goto error; 891 892 ret = 0; 893 /* 894 * if the user doesn't want the dataset automatically mounted, 895 * then skip the mount/share step 896 */ 897 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 898 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 899 900 /* 901 * Mount and/or share the new filesystem as appropriate. We provide a 902 * verbose error message to let the user know that their filesystem was 903 * in fact created, even if we failed to mount or share it. 904 */ 905 if (canmount == ZFS_CANMOUNT_ON) { 906 if (zfs_mount(zhp, NULL, 0) != 0) { 907 (void) fprintf(stderr, gettext("filesystem " 908 "successfully created, but not mounted\n")); 909 ret = 1; 910 } else if (zfs_share(zhp) != 0) { 911 (void) fprintf(stderr, gettext("filesystem " 912 "successfully created, but not shared\n")); 913 ret = 1; 914 } 915 } 916 917 error: 918 if (zhp) 919 zfs_close(zhp); 920 nvlist_free(props); 921 return (ret); 922 badusage: 923 nvlist_free(props); 924 usage(B_FALSE); 925 return (2); 926 } 927 928 /* 929 * zfs destroy [-rRf] <fs, vol> 930 * zfs destroy [-rRd] <snap> 931 * 932 * -r Recursively destroy all children 933 * -R Recursively destroy all dependents, including clones 934 * -f Force unmounting of any dependents 935 * -d If we can't destroy now, mark for deferred destruction 936 * 937 * Destroys the given dataset. By default, it will unmount any filesystems, 938 * and refuse to destroy a dataset that has any dependents. A dependent can 939 * either be a child, or a clone of a child. 940 */ 941 typedef struct destroy_cbdata { 942 boolean_t cb_first; 943 boolean_t cb_force; 944 boolean_t cb_recurse; 945 boolean_t cb_error; 946 boolean_t cb_doclones; 947 zfs_handle_t *cb_target; 948 boolean_t cb_defer_destroy; 949 boolean_t cb_verbose; 950 boolean_t cb_parsable; 951 boolean_t cb_dryrun; 952 nvlist_t *cb_nvl; 953 nvlist_t *cb_batchedsnaps; 954 955 /* first snap in contiguous run */ 956 char *cb_firstsnap; 957 /* previous snap in contiguous run */ 958 char *cb_prevsnap; 959 int64_t cb_snapused; 960 char *cb_snapspec; 961 char *cb_bookmark; 962 } destroy_cbdata_t; 963 964 /* 965 * Check for any dependents based on the '-r' or '-R' flags. 966 */ 967 static int 968 destroy_check_dependent(zfs_handle_t *zhp, void *data) 969 { 970 destroy_cbdata_t *cbp = data; 971 const char *tname = zfs_get_name(cbp->cb_target); 972 const char *name = zfs_get_name(zhp); 973 974 if (strncmp(tname, name, strlen(tname)) == 0 && 975 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 976 /* 977 * This is a direct descendant, not a clone somewhere else in 978 * the hierarchy. 979 */ 980 if (cbp->cb_recurse) 981 goto out; 982 983 if (cbp->cb_first) { 984 (void) fprintf(stderr, gettext("cannot destroy '%s': " 985 "%s has children\n"), 986 zfs_get_name(cbp->cb_target), 987 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 988 (void) fprintf(stderr, gettext("use '-r' to destroy " 989 "the following datasets:\n")); 990 cbp->cb_first = B_FALSE; 991 cbp->cb_error = B_TRUE; 992 } 993 994 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 995 } else { 996 /* 997 * This is a clone. We only want to report this if the '-r' 998 * wasn't specified, or the target is a snapshot. 999 */ 1000 if (!cbp->cb_recurse && 1001 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1002 goto out; 1003 1004 if (cbp->cb_first) { 1005 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1006 "%s has dependent clones\n"), 1007 zfs_get_name(cbp->cb_target), 1008 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1009 (void) fprintf(stderr, gettext("use '-R' to destroy " 1010 "the following datasets:\n")); 1011 cbp->cb_first = B_FALSE; 1012 cbp->cb_error = B_TRUE; 1013 cbp->cb_dryrun = B_TRUE; 1014 } 1015 1016 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1017 } 1018 1019 out: 1020 zfs_close(zhp); 1021 return (0); 1022 } 1023 1024 static int 1025 destroy_callback(zfs_handle_t *zhp, void *data) 1026 { 1027 destroy_cbdata_t *cb = data; 1028 const char *name = zfs_get_name(zhp); 1029 1030 if (cb->cb_verbose) { 1031 if (cb->cb_parsable) { 1032 (void) printf("destroy\t%s\n", name); 1033 } else if (cb->cb_dryrun) { 1034 (void) printf(gettext("would destroy %s\n"), 1035 name); 1036 } else { 1037 (void) printf(gettext("will destroy %s\n"), 1038 name); 1039 } 1040 } 1041 1042 /* 1043 * Ignore pools (which we've already flagged as an error before getting 1044 * here). 1045 */ 1046 if (strchr(zfs_get_name(zhp), '/') == NULL && 1047 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1048 zfs_close(zhp); 1049 return (0); 1050 } 1051 if (cb->cb_dryrun) { 1052 zfs_close(zhp); 1053 return (0); 1054 } 1055 1056 /* 1057 * We batch up all contiguous snapshots (even of different 1058 * filesystems) and destroy them with one ioctl. We can't 1059 * simply do all snap deletions and then all fs deletions, 1060 * because we must delete a clone before its origin. 1061 */ 1062 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1063 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1064 } else { 1065 int error = zfs_destroy_snaps_nvl(g_zfs, 1066 cb->cb_batchedsnaps, B_FALSE); 1067 fnvlist_free(cb->cb_batchedsnaps); 1068 cb->cb_batchedsnaps = fnvlist_alloc(); 1069 1070 if (error != 0 || 1071 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1072 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1073 zfs_close(zhp); 1074 return (-1); 1075 } 1076 } 1077 1078 zfs_close(zhp); 1079 return (0); 1080 } 1081 1082 static int 1083 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1084 { 1085 destroy_cbdata_t *cb = arg; 1086 const char *name = zfs_get_name(zhp); 1087 int err = 0; 1088 1089 if (nvlist_exists(cb->cb_nvl, name)) { 1090 if (cb->cb_firstsnap == NULL) 1091 cb->cb_firstsnap = strdup(name); 1092 if (cb->cb_prevsnap != NULL) 1093 free(cb->cb_prevsnap); 1094 /* this snap continues the current range */ 1095 cb->cb_prevsnap = strdup(name); 1096 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1097 nomem(); 1098 if (cb->cb_verbose) { 1099 if (cb->cb_parsable) { 1100 (void) printf("destroy\t%s\n", name); 1101 } else if (cb->cb_dryrun) { 1102 (void) printf(gettext("would destroy %s\n"), 1103 name); 1104 } else { 1105 (void) printf(gettext("will destroy %s\n"), 1106 name); 1107 } 1108 } 1109 } else if (cb->cb_firstsnap != NULL) { 1110 /* end of this range */ 1111 uint64_t used = 0; 1112 err = lzc_snaprange_space(cb->cb_firstsnap, 1113 cb->cb_prevsnap, &used); 1114 cb->cb_snapused += used; 1115 free(cb->cb_firstsnap); 1116 cb->cb_firstsnap = NULL; 1117 free(cb->cb_prevsnap); 1118 cb->cb_prevsnap = NULL; 1119 } 1120 zfs_close(zhp); 1121 return (err); 1122 } 1123 1124 static int 1125 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1126 { 1127 int err = 0; 1128 assert(cb->cb_firstsnap == NULL); 1129 assert(cb->cb_prevsnap == NULL); 1130 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1131 if (cb->cb_firstsnap != NULL) { 1132 uint64_t used = 0; 1133 if (err == 0) { 1134 err = lzc_snaprange_space(cb->cb_firstsnap, 1135 cb->cb_prevsnap, &used); 1136 } 1137 cb->cb_snapused += used; 1138 free(cb->cb_firstsnap); 1139 cb->cb_firstsnap = NULL; 1140 free(cb->cb_prevsnap); 1141 cb->cb_prevsnap = NULL; 1142 } 1143 return (err); 1144 } 1145 1146 static int 1147 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1148 { 1149 destroy_cbdata_t *cb = arg; 1150 int err = 0; 1151 1152 /* Check for clones. */ 1153 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1154 cb->cb_target = zhp; 1155 cb->cb_first = B_TRUE; 1156 err = zfs_iter_dependents(zhp, B_TRUE, 1157 destroy_check_dependent, cb); 1158 } 1159 1160 if (err == 0) { 1161 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1162 nomem(); 1163 } 1164 zfs_close(zhp); 1165 return (err); 1166 } 1167 1168 static int 1169 gather_snapshots(zfs_handle_t *zhp, void *arg) 1170 { 1171 destroy_cbdata_t *cb = arg; 1172 int err = 0; 1173 1174 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1175 if (err == ENOENT) 1176 err = 0; 1177 if (err != 0) 1178 goto out; 1179 1180 if (cb->cb_verbose) { 1181 err = destroy_print_snapshots(zhp, cb); 1182 if (err != 0) 1183 goto out; 1184 } 1185 1186 if (cb->cb_recurse) 1187 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1188 1189 out: 1190 zfs_close(zhp); 1191 return (err); 1192 } 1193 1194 static int 1195 destroy_clones(destroy_cbdata_t *cb) 1196 { 1197 nvpair_t *pair; 1198 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1199 pair != NULL; 1200 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1201 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1202 ZFS_TYPE_SNAPSHOT); 1203 if (zhp != NULL) { 1204 boolean_t defer = cb->cb_defer_destroy; 1205 int err = 0; 1206 1207 /* 1208 * We can't defer destroy non-snapshots, so set it to 1209 * false while destroying the clones. 1210 */ 1211 cb->cb_defer_destroy = B_FALSE; 1212 err = zfs_iter_dependents(zhp, B_FALSE, 1213 destroy_callback, cb); 1214 cb->cb_defer_destroy = defer; 1215 zfs_close(zhp); 1216 if (err != 0) 1217 return (err); 1218 } 1219 } 1220 return (0); 1221 } 1222 1223 static int 1224 zfs_do_destroy(int argc, char **argv) 1225 { 1226 destroy_cbdata_t cb = { 0 }; 1227 int rv = 0; 1228 int err = 0; 1229 int c; 1230 zfs_handle_t *zhp = NULL; 1231 char *at, *pound; 1232 zfs_type_t type = ZFS_TYPE_DATASET; 1233 1234 /* check options */ 1235 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1236 switch (c) { 1237 case 'v': 1238 cb.cb_verbose = B_TRUE; 1239 break; 1240 case 'p': 1241 cb.cb_verbose = B_TRUE; 1242 cb.cb_parsable = B_TRUE; 1243 break; 1244 case 'n': 1245 cb.cb_dryrun = B_TRUE; 1246 break; 1247 case 'd': 1248 cb.cb_defer_destroy = B_TRUE; 1249 type = ZFS_TYPE_SNAPSHOT; 1250 break; 1251 case 'f': 1252 cb.cb_force = B_TRUE; 1253 break; 1254 case 'r': 1255 cb.cb_recurse = B_TRUE; 1256 break; 1257 case 'R': 1258 cb.cb_recurse = B_TRUE; 1259 cb.cb_doclones = B_TRUE; 1260 break; 1261 case '?': 1262 default: 1263 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1264 optopt); 1265 usage(B_FALSE); 1266 } 1267 } 1268 1269 argc -= optind; 1270 argv += optind; 1271 1272 /* check number of arguments */ 1273 if (argc == 0) { 1274 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1275 usage(B_FALSE); 1276 } 1277 if (argc > 1) { 1278 (void) fprintf(stderr, gettext("too many arguments\n")); 1279 usage(B_FALSE); 1280 } 1281 1282 at = strchr(argv[0], '@'); 1283 pound = strchr(argv[0], '#'); 1284 if (at != NULL) { 1285 1286 /* Build the list of snaps to destroy in cb_nvl. */ 1287 cb.cb_nvl = fnvlist_alloc(); 1288 1289 *at = '\0'; 1290 zhp = zfs_open(g_zfs, argv[0], 1291 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1292 if (zhp == NULL) 1293 return (1); 1294 1295 cb.cb_snapspec = at + 1; 1296 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1297 cb.cb_error) { 1298 rv = 1; 1299 goto out; 1300 } 1301 1302 if (nvlist_empty(cb.cb_nvl)) { 1303 (void) fprintf(stderr, gettext("could not find any " 1304 "snapshots to destroy; check snapshot names.\n")); 1305 rv = 1; 1306 goto out; 1307 } 1308 1309 if (cb.cb_verbose) { 1310 char buf[16]; 1311 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1312 if (cb.cb_parsable) { 1313 (void) printf("reclaim\t%llu\n", 1314 cb.cb_snapused); 1315 } else if (cb.cb_dryrun) { 1316 (void) printf(gettext("would reclaim %s\n"), 1317 buf); 1318 } else { 1319 (void) printf(gettext("will reclaim %s\n"), 1320 buf); 1321 } 1322 } 1323 1324 if (!cb.cb_dryrun) { 1325 if (cb.cb_doclones) { 1326 cb.cb_batchedsnaps = fnvlist_alloc(); 1327 err = destroy_clones(&cb); 1328 if (err == 0) { 1329 err = zfs_destroy_snaps_nvl(g_zfs, 1330 cb.cb_batchedsnaps, B_FALSE); 1331 } 1332 if (err != 0) { 1333 rv = 1; 1334 goto out; 1335 } 1336 } 1337 if (err == 0) { 1338 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1339 cb.cb_defer_destroy); 1340 } 1341 } 1342 1343 if (err != 0) 1344 rv = 1; 1345 } else if (pound != NULL) { 1346 int err; 1347 nvlist_t *nvl; 1348 1349 if (cb.cb_dryrun) { 1350 (void) fprintf(stderr, 1351 "dryrun is not supported with bookmark\n"); 1352 return (-1); 1353 } 1354 1355 if (cb.cb_defer_destroy) { 1356 (void) fprintf(stderr, 1357 "defer destroy is not supported with bookmark\n"); 1358 return (-1); 1359 } 1360 1361 if (cb.cb_recurse) { 1362 (void) fprintf(stderr, 1363 "recursive is not supported with bookmark\n"); 1364 return (-1); 1365 } 1366 1367 if (!zfs_bookmark_exists(argv[0])) { 1368 (void) fprintf(stderr, gettext("bookmark '%s' " 1369 "does not exist.\n"), argv[0]); 1370 return (1); 1371 } 1372 1373 nvl = fnvlist_alloc(); 1374 fnvlist_add_boolean(nvl, argv[0]); 1375 1376 err = lzc_destroy_bookmarks(nvl, NULL); 1377 if (err != 0) { 1378 (void) zfs_standard_error(g_zfs, err, 1379 "cannot destroy bookmark"); 1380 } 1381 1382 nvlist_free(cb.cb_nvl); 1383 1384 return (err); 1385 } else { 1386 /* Open the given dataset */ 1387 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1388 return (1); 1389 1390 cb.cb_target = zhp; 1391 1392 /* 1393 * Perform an explicit check for pools before going any further. 1394 */ 1395 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1396 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1397 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1398 "operation does not apply to pools\n"), 1399 zfs_get_name(zhp)); 1400 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1401 "%s' to destroy all datasets in the pool\n"), 1402 zfs_get_name(zhp)); 1403 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1404 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1405 rv = 1; 1406 goto out; 1407 } 1408 1409 /* 1410 * Check for any dependents and/or clones. 1411 */ 1412 cb.cb_first = B_TRUE; 1413 if (!cb.cb_doclones && 1414 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1415 &cb) != 0) { 1416 rv = 1; 1417 goto out; 1418 } 1419 1420 if (cb.cb_error) { 1421 rv = 1; 1422 goto out; 1423 } 1424 1425 cb.cb_batchedsnaps = fnvlist_alloc(); 1426 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1427 &cb) != 0) { 1428 rv = 1; 1429 goto out; 1430 } 1431 1432 /* 1433 * Do the real thing. The callback will close the 1434 * handle regardless of whether it succeeds or not. 1435 */ 1436 err = destroy_callback(zhp, &cb); 1437 zhp = NULL; 1438 if (err == 0) { 1439 err = zfs_destroy_snaps_nvl(g_zfs, 1440 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1441 } 1442 if (err != 0) 1443 rv = 1; 1444 } 1445 1446 out: 1447 fnvlist_free(cb.cb_batchedsnaps); 1448 fnvlist_free(cb.cb_nvl); 1449 if (zhp != NULL) 1450 zfs_close(zhp); 1451 return (rv); 1452 } 1453 1454 static boolean_t 1455 is_recvd_column(zprop_get_cbdata_t *cbp) 1456 { 1457 int i; 1458 zfs_get_column_t col; 1459 1460 for (i = 0; i < ZFS_GET_NCOLS && 1461 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1462 if (col == GET_COL_RECVD) 1463 return (B_TRUE); 1464 return (B_FALSE); 1465 } 1466 1467 /* 1468 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1469 * < all | property[,property]... > < fs | snap | vol > ... 1470 * 1471 * -r recurse over any child datasets 1472 * -H scripted mode. Headers are stripped, and fields are separated 1473 * by tabs instead of spaces. 1474 * -o Set of fields to display. One of "name,property,value, 1475 * received,source". Default is "name,property,value,source". 1476 * "all" is an alias for all five. 1477 * -s Set of sources to allow. One of 1478 * "local,default,inherited,received,temporary,none". Default is 1479 * all six. 1480 * -p Display values in parsable (literal) format. 1481 * 1482 * Prints properties for the given datasets. The user can control which 1483 * columns to display as well as which property types to allow. 1484 */ 1485 1486 /* 1487 * Invoked to display the properties for a single dataset. 1488 */ 1489 static int 1490 get_callback(zfs_handle_t *zhp, void *data) 1491 { 1492 char buf[ZFS_MAXPROPLEN]; 1493 char rbuf[ZFS_MAXPROPLEN]; 1494 zprop_source_t sourcetype; 1495 char source[ZFS_MAX_DATASET_NAME_LEN]; 1496 zprop_get_cbdata_t *cbp = data; 1497 nvlist_t *user_props = zfs_get_user_props(zhp); 1498 zprop_list_t *pl = cbp->cb_proplist; 1499 nvlist_t *propval; 1500 char *strval; 1501 char *sourceval; 1502 boolean_t received = is_recvd_column(cbp); 1503 1504 for (; pl != NULL; pl = pl->pl_next) { 1505 char *recvdval = NULL; 1506 /* 1507 * Skip the special fake placeholder. This will also skip over 1508 * the name property when 'all' is specified. 1509 */ 1510 if (pl->pl_prop == ZFS_PROP_NAME && 1511 pl == cbp->cb_proplist) 1512 continue; 1513 1514 if (pl->pl_prop != ZPROP_INVAL) { 1515 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1516 sizeof (buf), &sourcetype, source, 1517 sizeof (source), 1518 cbp->cb_literal) != 0) { 1519 if (pl->pl_all) 1520 continue; 1521 if (!zfs_prop_valid_for_type(pl->pl_prop, 1522 ZFS_TYPE_DATASET)) { 1523 (void) fprintf(stderr, 1524 gettext("No such property '%s'\n"), 1525 zfs_prop_to_name(pl->pl_prop)); 1526 continue; 1527 } 1528 sourcetype = ZPROP_SRC_NONE; 1529 (void) strlcpy(buf, "-", sizeof (buf)); 1530 } 1531 1532 if (received && (zfs_prop_get_recvd(zhp, 1533 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1534 cbp->cb_literal) == 0)) 1535 recvdval = rbuf; 1536 1537 zprop_print_one_property(zfs_get_name(zhp), cbp, 1538 zfs_prop_to_name(pl->pl_prop), 1539 buf, sourcetype, source, recvdval); 1540 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1541 sourcetype = ZPROP_SRC_LOCAL; 1542 1543 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1544 buf, sizeof (buf), cbp->cb_literal) != 0) { 1545 sourcetype = ZPROP_SRC_NONE; 1546 (void) strlcpy(buf, "-", sizeof (buf)); 1547 } 1548 1549 zprop_print_one_property(zfs_get_name(zhp), cbp, 1550 pl->pl_user_prop, buf, sourcetype, source, NULL); 1551 } else if (zfs_prop_written(pl->pl_user_prop)) { 1552 sourcetype = ZPROP_SRC_LOCAL; 1553 1554 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1555 buf, sizeof (buf), cbp->cb_literal) != 0) { 1556 sourcetype = ZPROP_SRC_NONE; 1557 (void) strlcpy(buf, "-", sizeof (buf)); 1558 } 1559 1560 zprop_print_one_property(zfs_get_name(zhp), cbp, 1561 pl->pl_user_prop, buf, sourcetype, source, NULL); 1562 } else { 1563 if (nvlist_lookup_nvlist(user_props, 1564 pl->pl_user_prop, &propval) != 0) { 1565 if (pl->pl_all) 1566 continue; 1567 sourcetype = ZPROP_SRC_NONE; 1568 strval = "-"; 1569 } else { 1570 verify(nvlist_lookup_string(propval, 1571 ZPROP_VALUE, &strval) == 0); 1572 verify(nvlist_lookup_string(propval, 1573 ZPROP_SOURCE, &sourceval) == 0); 1574 1575 if (strcmp(sourceval, 1576 zfs_get_name(zhp)) == 0) { 1577 sourcetype = ZPROP_SRC_LOCAL; 1578 } else if (strcmp(sourceval, 1579 ZPROP_SOURCE_VAL_RECVD) == 0) { 1580 sourcetype = ZPROP_SRC_RECEIVED; 1581 } else { 1582 sourcetype = ZPROP_SRC_INHERITED; 1583 (void) strlcpy(source, 1584 sourceval, sizeof (source)); 1585 } 1586 } 1587 1588 if (received && (zfs_prop_get_recvd(zhp, 1589 pl->pl_user_prop, rbuf, sizeof (rbuf), 1590 cbp->cb_literal) == 0)) 1591 recvdval = rbuf; 1592 1593 zprop_print_one_property(zfs_get_name(zhp), cbp, 1594 pl->pl_user_prop, strval, sourcetype, 1595 source, recvdval); 1596 } 1597 } 1598 1599 return (0); 1600 } 1601 1602 static int 1603 zfs_do_get(int argc, char **argv) 1604 { 1605 zprop_get_cbdata_t cb = { 0 }; 1606 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1607 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1608 char *value, *fields; 1609 int ret = 0; 1610 int limit = 0; 1611 zprop_list_t fake_name = { 0 }; 1612 1613 /* 1614 * Set up default columns and sources. 1615 */ 1616 cb.cb_sources = ZPROP_SRC_ALL; 1617 cb.cb_columns[0] = GET_COL_NAME; 1618 cb.cb_columns[1] = GET_COL_PROPERTY; 1619 cb.cb_columns[2] = GET_COL_VALUE; 1620 cb.cb_columns[3] = GET_COL_SOURCE; 1621 cb.cb_type = ZFS_TYPE_DATASET; 1622 1623 /* check options */ 1624 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1625 switch (c) { 1626 case 'p': 1627 cb.cb_literal = B_TRUE; 1628 break; 1629 case 'd': 1630 limit = parse_depth(optarg, &flags); 1631 break; 1632 case 'r': 1633 flags |= ZFS_ITER_RECURSE; 1634 break; 1635 case 'H': 1636 cb.cb_scripted = B_TRUE; 1637 break; 1638 case ':': 1639 (void) fprintf(stderr, gettext("missing argument for " 1640 "'%c' option\n"), optopt); 1641 usage(B_FALSE); 1642 break; 1643 case 'o': 1644 /* 1645 * Process the set of columns to display. We zero out 1646 * the structure to give us a blank slate. 1647 */ 1648 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1649 i = 0; 1650 while (*optarg != '\0') { 1651 static char *col_subopts[] = 1652 { "name", "property", "value", "received", 1653 "source", "all", NULL }; 1654 1655 if (i == ZFS_GET_NCOLS) { 1656 (void) fprintf(stderr, gettext("too " 1657 "many fields given to -o " 1658 "option\n")); 1659 usage(B_FALSE); 1660 } 1661 1662 switch (getsubopt(&optarg, col_subopts, 1663 &value)) { 1664 case 0: 1665 cb.cb_columns[i++] = GET_COL_NAME; 1666 break; 1667 case 1: 1668 cb.cb_columns[i++] = GET_COL_PROPERTY; 1669 break; 1670 case 2: 1671 cb.cb_columns[i++] = GET_COL_VALUE; 1672 break; 1673 case 3: 1674 cb.cb_columns[i++] = GET_COL_RECVD; 1675 flags |= ZFS_ITER_RECVD_PROPS; 1676 break; 1677 case 4: 1678 cb.cb_columns[i++] = GET_COL_SOURCE; 1679 break; 1680 case 5: 1681 if (i > 0) { 1682 (void) fprintf(stderr, 1683 gettext("\"all\" conflicts " 1684 "with specific fields " 1685 "given to -o option\n")); 1686 usage(B_FALSE); 1687 } 1688 cb.cb_columns[0] = GET_COL_NAME; 1689 cb.cb_columns[1] = GET_COL_PROPERTY; 1690 cb.cb_columns[2] = GET_COL_VALUE; 1691 cb.cb_columns[3] = GET_COL_RECVD; 1692 cb.cb_columns[4] = GET_COL_SOURCE; 1693 flags |= ZFS_ITER_RECVD_PROPS; 1694 i = ZFS_GET_NCOLS; 1695 break; 1696 default: 1697 (void) fprintf(stderr, 1698 gettext("invalid column name " 1699 "'%s'\n"), value); 1700 usage(B_FALSE); 1701 } 1702 } 1703 break; 1704 1705 case 's': 1706 cb.cb_sources = 0; 1707 while (*optarg != '\0') { 1708 static char *source_subopts[] = { 1709 "local", "default", "inherited", 1710 "received", "temporary", "none", 1711 NULL }; 1712 1713 switch (getsubopt(&optarg, source_subopts, 1714 &value)) { 1715 case 0: 1716 cb.cb_sources |= ZPROP_SRC_LOCAL; 1717 break; 1718 case 1: 1719 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1720 break; 1721 case 2: 1722 cb.cb_sources |= ZPROP_SRC_INHERITED; 1723 break; 1724 case 3: 1725 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1726 break; 1727 case 4: 1728 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1729 break; 1730 case 5: 1731 cb.cb_sources |= ZPROP_SRC_NONE; 1732 break; 1733 default: 1734 (void) fprintf(stderr, 1735 gettext("invalid source " 1736 "'%s'\n"), value); 1737 usage(B_FALSE); 1738 } 1739 } 1740 break; 1741 1742 case 't': 1743 types = 0; 1744 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1745 while (*optarg != '\0') { 1746 static char *type_subopts[] = { "filesystem", 1747 "volume", "snapshot", "bookmark", 1748 "all", NULL }; 1749 1750 switch (getsubopt(&optarg, type_subopts, 1751 &value)) { 1752 case 0: 1753 types |= ZFS_TYPE_FILESYSTEM; 1754 break; 1755 case 1: 1756 types |= ZFS_TYPE_VOLUME; 1757 break; 1758 case 2: 1759 types |= ZFS_TYPE_SNAPSHOT; 1760 break; 1761 case 3: 1762 types |= ZFS_TYPE_BOOKMARK; 1763 break; 1764 case 4: 1765 types = ZFS_TYPE_DATASET | 1766 ZFS_TYPE_BOOKMARK; 1767 break; 1768 1769 default: 1770 (void) fprintf(stderr, 1771 gettext("invalid type '%s'\n"), 1772 value); 1773 usage(B_FALSE); 1774 } 1775 } 1776 break; 1777 1778 case '?': 1779 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1780 optopt); 1781 usage(B_FALSE); 1782 } 1783 } 1784 1785 argc -= optind; 1786 argv += optind; 1787 1788 if (argc < 1) { 1789 (void) fprintf(stderr, gettext("missing property " 1790 "argument\n")); 1791 usage(B_FALSE); 1792 } 1793 1794 fields = argv[0]; 1795 1796 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1797 != 0) 1798 usage(B_FALSE); 1799 1800 argc--; 1801 argv++; 1802 1803 /* 1804 * As part of zfs_expand_proplist(), we keep track of the maximum column 1805 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1806 * need to know the maximum name length. However, the user likely did 1807 * not specify 'name' as one of the properties to fetch, so we need to 1808 * make sure we always include at least this property for 1809 * print_get_headers() to work properly. 1810 */ 1811 if (cb.cb_proplist != NULL) { 1812 fake_name.pl_prop = ZFS_PROP_NAME; 1813 fake_name.pl_width = strlen(gettext("NAME")); 1814 fake_name.pl_next = cb.cb_proplist; 1815 cb.cb_proplist = &fake_name; 1816 } 1817 1818 cb.cb_first = B_TRUE; 1819 1820 /* run for each object */ 1821 ret = zfs_for_each(argc, argv, flags, types, NULL, 1822 &cb.cb_proplist, limit, get_callback, &cb); 1823 1824 if (cb.cb_proplist == &fake_name) 1825 zprop_free_list(fake_name.pl_next); 1826 else 1827 zprop_free_list(cb.cb_proplist); 1828 1829 return (ret); 1830 } 1831 1832 /* 1833 * inherit [-rS] <property> <fs|vol> ... 1834 * 1835 * -r Recurse over all children 1836 * -S Revert to received value, if any 1837 * 1838 * For each dataset specified on the command line, inherit the given property 1839 * from its parent. Inheriting a property at the pool level will cause it to 1840 * use the default value. The '-r' flag will recurse over all children, and is 1841 * useful for setting a property on a hierarchy-wide basis, regardless of any 1842 * local modifications for each dataset. 1843 */ 1844 1845 typedef struct inherit_cbdata { 1846 const char *cb_propname; 1847 boolean_t cb_received; 1848 } inherit_cbdata_t; 1849 1850 static int 1851 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1852 { 1853 inherit_cbdata_t *cb = data; 1854 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1855 1856 /* 1857 * If we're doing it recursively, then ignore properties that 1858 * are not valid for this type of dataset. 1859 */ 1860 if (prop != ZPROP_INVAL && 1861 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1862 return (0); 1863 1864 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1865 } 1866 1867 static int 1868 inherit_cb(zfs_handle_t *zhp, void *data) 1869 { 1870 inherit_cbdata_t *cb = data; 1871 1872 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1873 } 1874 1875 static int 1876 zfs_do_inherit(int argc, char **argv) 1877 { 1878 int c; 1879 zfs_prop_t prop; 1880 inherit_cbdata_t cb = { 0 }; 1881 char *propname; 1882 int ret = 0; 1883 int flags = 0; 1884 boolean_t received = B_FALSE; 1885 1886 /* check options */ 1887 while ((c = getopt(argc, argv, "rS")) != -1) { 1888 switch (c) { 1889 case 'r': 1890 flags |= ZFS_ITER_RECURSE; 1891 break; 1892 case 'S': 1893 received = B_TRUE; 1894 break; 1895 case '?': 1896 default: 1897 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1898 optopt); 1899 usage(B_FALSE); 1900 } 1901 } 1902 1903 argc -= optind; 1904 argv += optind; 1905 1906 /* check number of arguments */ 1907 if (argc < 1) { 1908 (void) fprintf(stderr, gettext("missing property argument\n")); 1909 usage(B_FALSE); 1910 } 1911 if (argc < 2) { 1912 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1913 usage(B_FALSE); 1914 } 1915 1916 propname = argv[0]; 1917 argc--; 1918 argv++; 1919 1920 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1921 if (zfs_prop_readonly(prop)) { 1922 (void) fprintf(stderr, gettext( 1923 "%s property is read-only\n"), 1924 propname); 1925 return (1); 1926 } 1927 if (!zfs_prop_inheritable(prop) && !received) { 1928 (void) fprintf(stderr, gettext("'%s' property cannot " 1929 "be inherited\n"), propname); 1930 if (prop == ZFS_PROP_QUOTA || 1931 prop == ZFS_PROP_RESERVATION || 1932 prop == ZFS_PROP_REFQUOTA || 1933 prop == ZFS_PROP_REFRESERVATION) { 1934 (void) fprintf(stderr, gettext("use 'zfs set " 1935 "%s=none' to clear\n"), propname); 1936 (void) fprintf(stderr, gettext("use 'zfs " 1937 "inherit -S %s' to revert to received " 1938 "value\n"), propname); 1939 } 1940 return (1); 1941 } 1942 if (received && (prop == ZFS_PROP_VOLSIZE || 1943 prop == ZFS_PROP_VERSION)) { 1944 (void) fprintf(stderr, gettext("'%s' property cannot " 1945 "be reverted to a received value\n"), propname); 1946 return (1); 1947 } 1948 } else if (!zfs_prop_user(propname)) { 1949 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1950 propname); 1951 usage(B_FALSE); 1952 } 1953 1954 cb.cb_propname = propname; 1955 cb.cb_received = received; 1956 1957 if (flags & ZFS_ITER_RECURSE) { 1958 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1959 NULL, NULL, 0, inherit_recurse_cb, &cb); 1960 } else { 1961 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1962 NULL, NULL, 0, inherit_cb, &cb); 1963 } 1964 1965 return (ret); 1966 } 1967 1968 typedef struct upgrade_cbdata { 1969 uint64_t cb_numupgraded; 1970 uint64_t cb_numsamegraded; 1971 uint64_t cb_numfailed; 1972 uint64_t cb_version; 1973 boolean_t cb_newer; 1974 boolean_t cb_foundone; 1975 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1976 } upgrade_cbdata_t; 1977 1978 static int 1979 same_pool(zfs_handle_t *zhp, const char *name) 1980 { 1981 int len1 = strcspn(name, "/@"); 1982 const char *zhname = zfs_get_name(zhp); 1983 int len2 = strcspn(zhname, "/@"); 1984 1985 if (len1 != len2) 1986 return (B_FALSE); 1987 return (strncmp(name, zhname, len1) == 0); 1988 } 1989 1990 static int 1991 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1992 { 1993 upgrade_cbdata_t *cb = data; 1994 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1995 1996 /* list if it's old/new */ 1997 if ((!cb->cb_newer && version < ZPL_VERSION) || 1998 (cb->cb_newer && version > ZPL_VERSION)) { 1999 char *str; 2000 if (cb->cb_newer) { 2001 str = gettext("The following filesystems are " 2002 "formatted using a newer software version and\n" 2003 "cannot be accessed on the current system.\n\n"); 2004 } else { 2005 str = gettext("The following filesystems are " 2006 "out of date, and can be upgraded. After being\n" 2007 "upgraded, these filesystems (and any 'zfs send' " 2008 "streams generated from\n" 2009 "subsequent snapshots) will no longer be " 2010 "accessible by older software versions.\n\n"); 2011 } 2012 2013 if (!cb->cb_foundone) { 2014 (void) puts(str); 2015 (void) printf(gettext("VER FILESYSTEM\n")); 2016 (void) printf(gettext("--- ------------\n")); 2017 cb->cb_foundone = B_TRUE; 2018 } 2019 2020 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2021 } 2022 2023 return (0); 2024 } 2025 2026 static int 2027 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2028 { 2029 upgrade_cbdata_t *cb = data; 2030 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2031 int needed_spa_version; 2032 int spa_version; 2033 2034 if (zfs_spa_version(zhp, &spa_version) < 0) 2035 return (-1); 2036 2037 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2038 2039 if (needed_spa_version < 0) 2040 return (-1); 2041 2042 if (spa_version < needed_spa_version) { 2043 /* can't upgrade */ 2044 (void) printf(gettext("%s: can not be " 2045 "upgraded; the pool version needs to first " 2046 "be upgraded\nto version %d\n\n"), 2047 zfs_get_name(zhp), needed_spa_version); 2048 cb->cb_numfailed++; 2049 return (0); 2050 } 2051 2052 /* upgrade */ 2053 if (version < cb->cb_version) { 2054 char verstr[16]; 2055 (void) snprintf(verstr, sizeof (verstr), 2056 "%llu", cb->cb_version); 2057 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2058 /* 2059 * If they did "zfs upgrade -a", then we could 2060 * be doing ioctls to different pools. We need 2061 * to log this history once to each pool, and bypass 2062 * the normal history logging that happens in main(). 2063 */ 2064 (void) zpool_log_history(g_zfs, history_str); 2065 log_history = B_FALSE; 2066 } 2067 if (zfs_prop_set(zhp, "version", verstr) == 0) 2068 cb->cb_numupgraded++; 2069 else 2070 cb->cb_numfailed++; 2071 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2072 } else if (version > cb->cb_version) { 2073 /* can't downgrade */ 2074 (void) printf(gettext("%s: can not be downgraded; " 2075 "it is already at version %u\n"), 2076 zfs_get_name(zhp), version); 2077 cb->cb_numfailed++; 2078 } else { 2079 cb->cb_numsamegraded++; 2080 } 2081 return (0); 2082 } 2083 2084 /* 2085 * zfs upgrade 2086 * zfs upgrade -v 2087 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2088 */ 2089 static int 2090 zfs_do_upgrade(int argc, char **argv) 2091 { 2092 boolean_t all = B_FALSE; 2093 boolean_t showversions = B_FALSE; 2094 int ret = 0; 2095 upgrade_cbdata_t cb = { 0 }; 2096 char c; 2097 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2098 2099 /* check options */ 2100 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2101 switch (c) { 2102 case 'r': 2103 flags |= ZFS_ITER_RECURSE; 2104 break; 2105 case 'v': 2106 showversions = B_TRUE; 2107 break; 2108 case 'V': 2109 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2110 optarg, &cb.cb_version) != 0) { 2111 (void) fprintf(stderr, 2112 gettext("invalid version %s\n"), optarg); 2113 usage(B_FALSE); 2114 } 2115 break; 2116 case 'a': 2117 all = B_TRUE; 2118 break; 2119 case '?': 2120 default: 2121 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2122 optopt); 2123 usage(B_FALSE); 2124 } 2125 } 2126 2127 argc -= optind; 2128 argv += optind; 2129 2130 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2131 usage(B_FALSE); 2132 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2133 cb.cb_version || argc)) 2134 usage(B_FALSE); 2135 if ((all || argc) && (showversions)) 2136 usage(B_FALSE); 2137 if (all && argc) 2138 usage(B_FALSE); 2139 2140 if (showversions) { 2141 /* Show info on available versions. */ 2142 (void) printf(gettext("The following filesystem versions are " 2143 "supported:\n\n")); 2144 (void) printf(gettext("VER DESCRIPTION\n")); 2145 (void) printf("--- -----------------------------------------" 2146 "---------------\n"); 2147 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2148 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2149 (void) printf(gettext(" 3 Case insensitive and filesystem " 2150 "user identifier (FUID)\n")); 2151 (void) printf(gettext(" 4 userquota, groupquota " 2152 "properties\n")); 2153 (void) printf(gettext(" 5 System attributes\n")); 2154 (void) printf(gettext("\nFor more information on a particular " 2155 "version, including supported releases,\n")); 2156 (void) printf("see the ZFS Administration Guide.\n\n"); 2157 ret = 0; 2158 } else if (argc || all) { 2159 /* Upgrade filesystems */ 2160 if (cb.cb_version == 0) 2161 cb.cb_version = ZPL_VERSION; 2162 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2163 NULL, NULL, 0, upgrade_set_callback, &cb); 2164 (void) printf(gettext("%llu filesystems upgraded\n"), 2165 cb.cb_numupgraded); 2166 if (cb.cb_numsamegraded) { 2167 (void) printf(gettext("%llu filesystems already at " 2168 "this version\n"), 2169 cb.cb_numsamegraded); 2170 } 2171 if (cb.cb_numfailed != 0) 2172 ret = 1; 2173 } else { 2174 /* List old-version filesytems */ 2175 boolean_t found; 2176 (void) printf(gettext("This system is currently running " 2177 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2178 2179 flags |= ZFS_ITER_RECURSE; 2180 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2181 NULL, NULL, 0, upgrade_list_callback, &cb); 2182 2183 found = cb.cb_foundone; 2184 cb.cb_foundone = B_FALSE; 2185 cb.cb_newer = B_TRUE; 2186 2187 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2188 NULL, NULL, 0, upgrade_list_callback, &cb); 2189 2190 if (!cb.cb_foundone && !found) { 2191 (void) printf(gettext("All filesystems are " 2192 "formatted with the current version.\n")); 2193 } 2194 } 2195 2196 return (ret); 2197 } 2198 2199 /* 2200 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2201 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2202 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2203 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2204 * 2205 * -H Scripted mode; elide headers and separate columns by tabs. 2206 * -i Translate SID to POSIX ID. 2207 * -n Print numeric ID instead of user/group name. 2208 * -o Control which fields to display. 2209 * -p Use exact (parsable) numeric output. 2210 * -s Specify sort columns, descending order. 2211 * -S Specify sort columns, ascending order. 2212 * -t Control which object types to display. 2213 * 2214 * Displays space consumed by, and quotas on, each user in the specified 2215 * filesystem or snapshot. 2216 */ 2217 2218 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2219 enum us_field_types { 2220 USFIELD_TYPE, 2221 USFIELD_NAME, 2222 USFIELD_USED, 2223 USFIELD_QUOTA 2224 }; 2225 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2226 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2227 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2228 2229 #define USTYPE_PSX_GRP (1 << 0) 2230 #define USTYPE_PSX_USR (1 << 1) 2231 #define USTYPE_SMB_GRP (1 << 2) 2232 #define USTYPE_SMB_USR (1 << 3) 2233 #define USTYPE_ALL \ 2234 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2235 2236 static int us_type_bits[] = { 2237 USTYPE_PSX_GRP, 2238 USTYPE_PSX_USR, 2239 USTYPE_SMB_GRP, 2240 USTYPE_SMB_USR, 2241 USTYPE_ALL 2242 }; 2243 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2244 "smbuser", "all" }; 2245 2246 typedef struct us_node { 2247 nvlist_t *usn_nvl; 2248 uu_avl_node_t usn_avlnode; 2249 uu_list_node_t usn_listnode; 2250 } us_node_t; 2251 2252 typedef struct us_cbdata { 2253 nvlist_t **cb_nvlp; 2254 uu_avl_pool_t *cb_avl_pool; 2255 uu_avl_t *cb_avl; 2256 boolean_t cb_numname; 2257 boolean_t cb_nicenum; 2258 boolean_t cb_sid2posix; 2259 zfs_userquota_prop_t cb_prop; 2260 zfs_sort_column_t *cb_sortcol; 2261 size_t cb_width[USFIELD_LAST]; 2262 } us_cbdata_t; 2263 2264 static boolean_t us_populated = B_FALSE; 2265 2266 typedef struct { 2267 zfs_sort_column_t *si_sortcol; 2268 boolean_t si_numname; 2269 } us_sort_info_t; 2270 2271 static int 2272 us_field_index(char *field) 2273 { 2274 int i; 2275 2276 for (i = 0; i < USFIELD_LAST; i++) { 2277 if (strcmp(field, us_field_names[i]) == 0) 2278 return (i); 2279 } 2280 2281 return (-1); 2282 } 2283 2284 static int 2285 us_compare(const void *larg, const void *rarg, void *unused) 2286 { 2287 const us_node_t *l = larg; 2288 const us_node_t *r = rarg; 2289 us_sort_info_t *si = (us_sort_info_t *)unused; 2290 zfs_sort_column_t *sortcol = si->si_sortcol; 2291 boolean_t numname = si->si_numname; 2292 nvlist_t *lnvl = l->usn_nvl; 2293 nvlist_t *rnvl = r->usn_nvl; 2294 int rc = 0; 2295 boolean_t lvb, rvb; 2296 2297 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2298 char *lvstr = ""; 2299 char *rvstr = ""; 2300 uint32_t lv32 = 0; 2301 uint32_t rv32 = 0; 2302 uint64_t lv64 = 0; 2303 uint64_t rv64 = 0; 2304 zfs_prop_t prop = sortcol->sc_prop; 2305 const char *propname = NULL; 2306 boolean_t reverse = sortcol->sc_reverse; 2307 2308 switch (prop) { 2309 case ZFS_PROP_TYPE: 2310 propname = "type"; 2311 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2312 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2313 if (rv32 != lv32) 2314 rc = (rv32 < lv32) ? 1 : -1; 2315 break; 2316 case ZFS_PROP_NAME: 2317 propname = "name"; 2318 if (numname) { 2319 (void) nvlist_lookup_uint64(lnvl, propname, 2320 &lv64); 2321 (void) nvlist_lookup_uint64(rnvl, propname, 2322 &rv64); 2323 if (rv64 != lv64) 2324 rc = (rv64 < lv64) ? 1 : -1; 2325 } else { 2326 (void) nvlist_lookup_string(lnvl, propname, 2327 &lvstr); 2328 (void) nvlist_lookup_string(rnvl, propname, 2329 &rvstr); 2330 rc = strcmp(lvstr, rvstr); 2331 } 2332 break; 2333 case ZFS_PROP_USED: 2334 case ZFS_PROP_QUOTA: 2335 if (!us_populated) 2336 break; 2337 if (prop == ZFS_PROP_USED) 2338 propname = "used"; 2339 else 2340 propname = "quota"; 2341 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2342 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2343 if (rv64 != lv64) 2344 rc = (rv64 < lv64) ? 1 : -1; 2345 break; 2346 } 2347 2348 if (rc != 0) { 2349 if (rc < 0) 2350 return (reverse ? 1 : -1); 2351 else 2352 return (reverse ? -1 : 1); 2353 } 2354 } 2355 2356 /* 2357 * If entries still seem to be the same, check if they are of the same 2358 * type (smbentity is added only if we are doing SID to POSIX ID 2359 * translation where we can have duplicate type/name combinations). 2360 */ 2361 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2362 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2363 lvb != rvb) 2364 return (lvb < rvb ? -1 : 1); 2365 2366 return (0); 2367 } 2368 2369 static inline const char * 2370 us_type2str(unsigned field_type) 2371 { 2372 switch (field_type) { 2373 case USTYPE_PSX_USR: 2374 return ("POSIX User"); 2375 case USTYPE_PSX_GRP: 2376 return ("POSIX Group"); 2377 case USTYPE_SMB_USR: 2378 return ("SMB User"); 2379 case USTYPE_SMB_GRP: 2380 return ("SMB Group"); 2381 default: 2382 return ("Undefined"); 2383 } 2384 } 2385 2386 static int 2387 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2388 { 2389 us_cbdata_t *cb = (us_cbdata_t *)arg; 2390 zfs_userquota_prop_t prop = cb->cb_prop; 2391 char *name = NULL; 2392 char *propname; 2393 char sizebuf[32]; 2394 us_node_t *node; 2395 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2396 uu_avl_t *avl = cb->cb_avl; 2397 uu_avl_index_t idx; 2398 nvlist_t *props; 2399 us_node_t *n; 2400 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2401 unsigned type; 2402 const char *typestr; 2403 size_t namelen; 2404 size_t typelen; 2405 size_t sizelen; 2406 int typeidx, nameidx, sizeidx; 2407 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2408 boolean_t smbentity = B_FALSE; 2409 2410 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2411 nomem(); 2412 node = safe_malloc(sizeof (us_node_t)); 2413 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2414 node->usn_nvl = props; 2415 2416 if (domain != NULL && domain[0] != '\0') { 2417 /* SMB */ 2418 char sid[MAXNAMELEN + 32]; 2419 uid_t id; 2420 int err; 2421 int flag = IDMAP_REQ_FLG_USE_CACHE; 2422 2423 smbentity = B_TRUE; 2424 2425 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2426 2427 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2428 type = USTYPE_SMB_GRP; 2429 err = sid_to_id(sid, B_FALSE, &id); 2430 } else { 2431 type = USTYPE_SMB_USR; 2432 err = sid_to_id(sid, B_TRUE, &id); 2433 } 2434 2435 if (err == 0) { 2436 rid = id; 2437 if (!cb->cb_sid2posix) { 2438 if (type == USTYPE_SMB_USR) { 2439 (void) idmap_getwinnamebyuid(rid, flag, 2440 &name, NULL); 2441 } else { 2442 (void) idmap_getwinnamebygid(rid, flag, 2443 &name, NULL); 2444 } 2445 if (name == NULL) 2446 name = sid; 2447 } 2448 } 2449 } 2450 2451 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2452 /* POSIX or -i */ 2453 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2454 type = USTYPE_PSX_GRP; 2455 if (!cb->cb_numname) { 2456 struct group *g; 2457 2458 if ((g = getgrgid(rid)) != NULL) 2459 name = g->gr_name; 2460 } 2461 } else { 2462 type = USTYPE_PSX_USR; 2463 if (!cb->cb_numname) { 2464 struct passwd *p; 2465 2466 if ((p = getpwuid(rid)) != NULL) 2467 name = p->pw_name; 2468 } 2469 } 2470 } 2471 2472 /* 2473 * Make sure that the type/name combination is unique when doing 2474 * SID to POSIX ID translation (hence changing the type from SMB to 2475 * POSIX). 2476 */ 2477 if (cb->cb_sid2posix && 2478 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2479 nomem(); 2480 2481 /* Calculate/update width of TYPE field */ 2482 typestr = us_type2str(type); 2483 typelen = strlen(gettext(typestr)); 2484 typeidx = us_field_index("type"); 2485 if (typelen > cb->cb_width[typeidx]) 2486 cb->cb_width[typeidx] = typelen; 2487 if (nvlist_add_uint32(props, "type", type) != 0) 2488 nomem(); 2489 2490 /* Calculate/update width of NAME field */ 2491 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2492 if (nvlist_add_uint64(props, "name", rid) != 0) 2493 nomem(); 2494 namelen = snprintf(NULL, 0, "%u", rid); 2495 } else { 2496 if (nvlist_add_string(props, "name", name) != 0) 2497 nomem(); 2498 namelen = strlen(name); 2499 } 2500 nameidx = us_field_index("name"); 2501 if (namelen > cb->cb_width[nameidx]) 2502 cb->cb_width[nameidx] = namelen; 2503 2504 /* 2505 * Check if this type/name combination is in the list and update it; 2506 * otherwise add new node to the list. 2507 */ 2508 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2509 uu_avl_insert(avl, node, idx); 2510 } else { 2511 nvlist_free(props); 2512 free(node); 2513 node = n; 2514 props = node->usn_nvl; 2515 } 2516 2517 /* Calculate/update width of USED/QUOTA fields */ 2518 if (cb->cb_nicenum) 2519 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2520 else 2521 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2522 sizelen = strlen(sizebuf); 2523 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2524 propname = "used"; 2525 if (!nvlist_exists(props, "quota")) 2526 (void) nvlist_add_uint64(props, "quota", 0); 2527 } else { 2528 propname = "quota"; 2529 if (!nvlist_exists(props, "used")) 2530 (void) nvlist_add_uint64(props, "used", 0); 2531 } 2532 sizeidx = us_field_index(propname); 2533 if (sizelen > cb->cb_width[sizeidx]) 2534 cb->cb_width[sizeidx] = sizelen; 2535 2536 if (nvlist_add_uint64(props, propname, space) != 0) 2537 nomem(); 2538 2539 return (0); 2540 } 2541 2542 static void 2543 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2544 size_t *width, us_node_t *node) 2545 { 2546 nvlist_t *nvl = node->usn_nvl; 2547 char valstr[MAXNAMELEN]; 2548 boolean_t first = B_TRUE; 2549 int cfield = 0; 2550 int field; 2551 uint32_t ustype; 2552 2553 /* Check type */ 2554 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2555 if (!(ustype & types)) 2556 return; 2557 2558 while ((field = fields[cfield]) != USFIELD_LAST) { 2559 nvpair_t *nvp = NULL; 2560 data_type_t type; 2561 uint32_t val32; 2562 uint64_t val64; 2563 char *strval = NULL; 2564 2565 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2566 if (strcmp(nvpair_name(nvp), 2567 us_field_names[field]) == 0) 2568 break; 2569 } 2570 2571 type = nvpair_type(nvp); 2572 switch (type) { 2573 case DATA_TYPE_UINT32: 2574 (void) nvpair_value_uint32(nvp, &val32); 2575 break; 2576 case DATA_TYPE_UINT64: 2577 (void) nvpair_value_uint64(nvp, &val64); 2578 break; 2579 case DATA_TYPE_STRING: 2580 (void) nvpair_value_string(nvp, &strval); 2581 break; 2582 default: 2583 (void) fprintf(stderr, "invalid data type\n"); 2584 } 2585 2586 switch (field) { 2587 case USFIELD_TYPE: 2588 strval = (char *)us_type2str(val32); 2589 break; 2590 case USFIELD_NAME: 2591 if (type == DATA_TYPE_UINT64) { 2592 (void) sprintf(valstr, "%llu", val64); 2593 strval = valstr; 2594 } 2595 break; 2596 case USFIELD_USED: 2597 case USFIELD_QUOTA: 2598 if (type == DATA_TYPE_UINT64) { 2599 if (parsable) { 2600 (void) sprintf(valstr, "%llu", val64); 2601 } else { 2602 zfs_nicenum(val64, valstr, 2603 sizeof (valstr)); 2604 } 2605 if (field == USFIELD_QUOTA && 2606 strcmp(valstr, "0") == 0) 2607 strval = "none"; 2608 else 2609 strval = valstr; 2610 } 2611 break; 2612 } 2613 2614 if (!first) { 2615 if (scripted) 2616 (void) printf("\t"); 2617 else 2618 (void) printf(" "); 2619 } 2620 if (scripted) 2621 (void) printf("%s", strval); 2622 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2623 (void) printf("%-*s", width[field], strval); 2624 else 2625 (void) printf("%*s", width[field], strval); 2626 2627 first = B_FALSE; 2628 cfield++; 2629 } 2630 2631 (void) printf("\n"); 2632 } 2633 2634 static void 2635 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2636 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2637 { 2638 us_node_t *node; 2639 const char *col; 2640 int cfield = 0; 2641 int field; 2642 2643 if (!scripted) { 2644 boolean_t first = B_TRUE; 2645 2646 while ((field = fields[cfield]) != USFIELD_LAST) { 2647 col = gettext(us_field_hdr[field]); 2648 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2649 (void) printf(first ? "%-*s" : " %-*s", 2650 width[field], col); 2651 } else { 2652 (void) printf(first ? "%*s" : " %*s", 2653 width[field], col); 2654 } 2655 first = B_FALSE; 2656 cfield++; 2657 } 2658 (void) printf("\n"); 2659 } 2660 2661 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2662 print_us_node(scripted, parsable, fields, types, width, node); 2663 if (rmnode) 2664 nvlist_free(node->usn_nvl); 2665 } 2666 } 2667 2668 static int 2669 zfs_do_userspace(int argc, char **argv) 2670 { 2671 zfs_handle_t *zhp; 2672 zfs_userquota_prop_t p; 2673 uu_avl_pool_t *avl_pool; 2674 uu_avl_t *avl_tree; 2675 uu_avl_walk_t *walk; 2676 char *delim; 2677 char deffields[] = "type,name,used,quota"; 2678 char *ofield = NULL; 2679 char *tfield = NULL; 2680 int cfield = 0; 2681 int fields[256]; 2682 int i; 2683 boolean_t scripted = B_FALSE; 2684 boolean_t prtnum = B_FALSE; 2685 boolean_t parsable = B_FALSE; 2686 boolean_t sid2posix = B_FALSE; 2687 int ret = 0; 2688 int c; 2689 zfs_sort_column_t *sortcol = NULL; 2690 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2691 us_cbdata_t cb; 2692 us_node_t *node; 2693 us_node_t *rmnode; 2694 uu_list_pool_t *listpool; 2695 uu_list_t *list; 2696 uu_avl_index_t idx = 0; 2697 uu_list_index_t idx2 = 0; 2698 2699 if (argc < 2) 2700 usage(B_FALSE); 2701 2702 if (strcmp(argv[0], "groupspace") == 0) 2703 /* Toggle default group types */ 2704 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2705 2706 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2707 switch (c) { 2708 case 'n': 2709 prtnum = B_TRUE; 2710 break; 2711 case 'H': 2712 scripted = B_TRUE; 2713 break; 2714 case 'p': 2715 parsable = B_TRUE; 2716 break; 2717 case 'o': 2718 ofield = optarg; 2719 break; 2720 case 's': 2721 case 'S': 2722 if (zfs_add_sort_column(&sortcol, optarg, 2723 c == 's' ? B_FALSE : B_TRUE) != 0) { 2724 (void) fprintf(stderr, 2725 gettext("invalid field '%s'\n"), optarg); 2726 usage(B_FALSE); 2727 } 2728 break; 2729 case 't': 2730 tfield = optarg; 2731 break; 2732 case 'i': 2733 sid2posix = B_TRUE; 2734 break; 2735 case ':': 2736 (void) fprintf(stderr, gettext("missing argument for " 2737 "'%c' option\n"), optopt); 2738 usage(B_FALSE); 2739 break; 2740 case '?': 2741 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2742 optopt); 2743 usage(B_FALSE); 2744 } 2745 } 2746 2747 argc -= optind; 2748 argv += optind; 2749 2750 if (argc < 1) { 2751 (void) fprintf(stderr, gettext("missing dataset name\n")); 2752 usage(B_FALSE); 2753 } 2754 if (argc > 1) { 2755 (void) fprintf(stderr, gettext("too many arguments\n")); 2756 usage(B_FALSE); 2757 } 2758 2759 /* Use default output fields if not specified using -o */ 2760 if (ofield == NULL) 2761 ofield = deffields; 2762 do { 2763 if ((delim = strchr(ofield, ',')) != NULL) 2764 *delim = '\0'; 2765 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2766 (void) fprintf(stderr, gettext("invalid type '%s' " 2767 "for -o option\n"), ofield); 2768 return (-1); 2769 } 2770 if (delim != NULL) 2771 ofield = delim + 1; 2772 } while (delim != NULL); 2773 fields[cfield] = USFIELD_LAST; 2774 2775 /* Override output types (-t option) */ 2776 if (tfield != NULL) { 2777 types = 0; 2778 2779 do { 2780 boolean_t found = B_FALSE; 2781 2782 if ((delim = strchr(tfield, ',')) != NULL) 2783 *delim = '\0'; 2784 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2785 i++) { 2786 if (strcmp(tfield, us_type_names[i]) == 0) { 2787 found = B_TRUE; 2788 types |= us_type_bits[i]; 2789 break; 2790 } 2791 } 2792 if (!found) { 2793 (void) fprintf(stderr, gettext("invalid type " 2794 "'%s' for -t option\n"), tfield); 2795 return (-1); 2796 } 2797 if (delim != NULL) 2798 tfield = delim + 1; 2799 } while (delim != NULL); 2800 } 2801 2802 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2803 return (1); 2804 2805 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2806 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2807 nomem(); 2808 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2809 nomem(); 2810 2811 /* Always add default sorting columns */ 2812 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2813 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2814 2815 cb.cb_sortcol = sortcol; 2816 cb.cb_numname = prtnum; 2817 cb.cb_nicenum = !parsable; 2818 cb.cb_avl_pool = avl_pool; 2819 cb.cb_avl = avl_tree; 2820 cb.cb_sid2posix = sid2posix; 2821 2822 for (i = 0; i < USFIELD_LAST; i++) 2823 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2824 2825 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2826 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2827 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2828 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2829 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2830 continue; 2831 cb.cb_prop = p; 2832 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2833 return (ret); 2834 } 2835 2836 /* Sort the list */ 2837 if ((node = uu_avl_first(avl_tree)) == NULL) 2838 return (0); 2839 2840 us_populated = B_TRUE; 2841 2842 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2843 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2844 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2845 uu_list_node_init(node, &node->usn_listnode, listpool); 2846 2847 while (node != NULL) { 2848 rmnode = node; 2849 node = uu_avl_next(avl_tree, node); 2850 uu_avl_remove(avl_tree, rmnode); 2851 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2852 uu_list_insert(list, rmnode, idx2); 2853 } 2854 2855 for (node = uu_list_first(list); node != NULL; 2856 node = uu_list_next(list, node)) { 2857 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2858 2859 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2860 uu_avl_insert(avl_tree, node, idx); 2861 } 2862 2863 uu_list_destroy(list); 2864 uu_list_pool_destroy(listpool); 2865 2866 /* Print and free node nvlist memory */ 2867 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2868 cb.cb_avl); 2869 2870 zfs_free_sort_columns(sortcol); 2871 2872 /* Clean up the AVL tree */ 2873 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2874 nomem(); 2875 2876 while ((node = uu_avl_walk_next(walk)) != NULL) { 2877 uu_avl_remove(cb.cb_avl, node); 2878 free(node); 2879 } 2880 2881 uu_avl_walk_end(walk); 2882 uu_avl_destroy(avl_tree); 2883 uu_avl_pool_destroy(avl_pool); 2884 2885 return (ret); 2886 } 2887 2888 /* 2889 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2890 * [-t type[,...]] [filesystem|volume|snapshot] ... 2891 * 2892 * -H Scripted mode; elide headers and separate columns by tabs. 2893 * -p Display values in parsable (literal) format. 2894 * -r Recurse over all children. 2895 * -d Limit recursion by depth. 2896 * -o Control which fields to display. 2897 * -s Specify sort columns, descending order. 2898 * -S Specify sort columns, ascending order. 2899 * -t Control which object types to display. 2900 * 2901 * When given no arguments, list all filesystems in the system. 2902 * Otherwise, list the specified datasets, optionally recursing down them if 2903 * '-r' is specified. 2904 */ 2905 typedef struct list_cbdata { 2906 boolean_t cb_first; 2907 boolean_t cb_literal; 2908 boolean_t cb_scripted; 2909 zprop_list_t *cb_proplist; 2910 } list_cbdata_t; 2911 2912 /* 2913 * Given a list of columns to display, output appropriate headers for each one. 2914 */ 2915 static void 2916 print_header(list_cbdata_t *cb) 2917 { 2918 zprop_list_t *pl = cb->cb_proplist; 2919 char headerbuf[ZFS_MAXPROPLEN]; 2920 const char *header; 2921 int i; 2922 boolean_t first = B_TRUE; 2923 boolean_t right_justify; 2924 2925 for (; pl != NULL; pl = pl->pl_next) { 2926 if (!first) { 2927 (void) printf(" "); 2928 } else { 2929 first = B_FALSE; 2930 } 2931 2932 right_justify = B_FALSE; 2933 if (pl->pl_prop != ZPROP_INVAL) { 2934 header = zfs_prop_column_name(pl->pl_prop); 2935 right_justify = zfs_prop_align_right(pl->pl_prop); 2936 } else { 2937 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2938 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2939 headerbuf[i] = '\0'; 2940 header = headerbuf; 2941 } 2942 2943 if (pl->pl_next == NULL && !right_justify) 2944 (void) printf("%s", header); 2945 else if (right_justify) 2946 (void) printf("%*s", pl->pl_width, header); 2947 else 2948 (void) printf("%-*s", pl->pl_width, header); 2949 } 2950 2951 (void) printf("\n"); 2952 } 2953 2954 /* 2955 * Given a dataset and a list of fields, print out all the properties according 2956 * to the described layout. 2957 */ 2958 static void 2959 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2960 { 2961 zprop_list_t *pl = cb->cb_proplist; 2962 boolean_t first = B_TRUE; 2963 char property[ZFS_MAXPROPLEN]; 2964 nvlist_t *userprops = zfs_get_user_props(zhp); 2965 nvlist_t *propval; 2966 char *propstr; 2967 boolean_t right_justify; 2968 2969 for (; pl != NULL; pl = pl->pl_next) { 2970 if (!first) { 2971 if (cb->cb_scripted) 2972 (void) printf("\t"); 2973 else 2974 (void) printf(" "); 2975 } else { 2976 first = B_FALSE; 2977 } 2978 2979 if (pl->pl_prop != ZPROP_INVAL) { 2980 if (zfs_prop_get(zhp, pl->pl_prop, property, 2981 sizeof (property), NULL, NULL, 0, 2982 cb->cb_literal) != 0) 2983 propstr = "-"; 2984 else 2985 propstr = property; 2986 right_justify = zfs_prop_align_right(pl->pl_prop); 2987 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2988 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2989 property, sizeof (property), cb->cb_literal) != 0) 2990 propstr = "-"; 2991 else 2992 propstr = property; 2993 right_justify = B_TRUE; 2994 } else if (zfs_prop_written(pl->pl_user_prop)) { 2995 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2996 property, sizeof (property), cb->cb_literal) != 0) 2997 propstr = "-"; 2998 else 2999 propstr = property; 3000 right_justify = B_TRUE; 3001 } else { 3002 if (nvlist_lookup_nvlist(userprops, 3003 pl->pl_user_prop, &propval) != 0) 3004 propstr = "-"; 3005 else 3006 verify(nvlist_lookup_string(propval, 3007 ZPROP_VALUE, &propstr) == 0); 3008 right_justify = B_FALSE; 3009 } 3010 3011 /* 3012 * If this is being called in scripted mode, or if this is the 3013 * last column and it is left-justified, don't include a width 3014 * format specifier. 3015 */ 3016 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3017 (void) printf("%s", propstr); 3018 else if (right_justify) 3019 (void) printf("%*s", pl->pl_width, propstr); 3020 else 3021 (void) printf("%-*s", pl->pl_width, propstr); 3022 } 3023 3024 (void) printf("\n"); 3025 } 3026 3027 /* 3028 * Generic callback function to list a dataset or snapshot. 3029 */ 3030 static int 3031 list_callback(zfs_handle_t *zhp, void *data) 3032 { 3033 list_cbdata_t *cbp = data; 3034 3035 if (cbp->cb_first) { 3036 if (!cbp->cb_scripted) 3037 print_header(cbp); 3038 cbp->cb_first = B_FALSE; 3039 } 3040 3041 print_dataset(zhp, cbp); 3042 3043 return (0); 3044 } 3045 3046 static int 3047 zfs_do_list(int argc, char **argv) 3048 { 3049 int c; 3050 static char default_fields[] = 3051 "name,used,available,referenced,mountpoint"; 3052 int types = ZFS_TYPE_DATASET; 3053 boolean_t types_specified = B_FALSE; 3054 char *fields = NULL; 3055 list_cbdata_t cb = { 0 }; 3056 char *value; 3057 int limit = 0; 3058 int ret = 0; 3059 zfs_sort_column_t *sortcol = NULL; 3060 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3061 3062 /* check options */ 3063 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3064 switch (c) { 3065 case 'o': 3066 fields = optarg; 3067 break; 3068 case 'p': 3069 cb.cb_literal = B_TRUE; 3070 flags |= ZFS_ITER_LITERAL_PROPS; 3071 break; 3072 case 'd': 3073 limit = parse_depth(optarg, &flags); 3074 break; 3075 case 'r': 3076 flags |= ZFS_ITER_RECURSE; 3077 break; 3078 case 'H': 3079 cb.cb_scripted = B_TRUE; 3080 break; 3081 case 's': 3082 if (zfs_add_sort_column(&sortcol, optarg, 3083 B_FALSE) != 0) { 3084 (void) fprintf(stderr, 3085 gettext("invalid property '%s'\n"), optarg); 3086 usage(B_FALSE); 3087 } 3088 break; 3089 case 'S': 3090 if (zfs_add_sort_column(&sortcol, optarg, 3091 B_TRUE) != 0) { 3092 (void) fprintf(stderr, 3093 gettext("invalid property '%s'\n"), optarg); 3094 usage(B_FALSE); 3095 } 3096 break; 3097 case 't': 3098 types = 0; 3099 types_specified = B_TRUE; 3100 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3101 while (*optarg != '\0') { 3102 static char *type_subopts[] = { "filesystem", 3103 "volume", "snapshot", "snap", "bookmark", 3104 "all", NULL }; 3105 3106 switch (getsubopt(&optarg, type_subopts, 3107 &value)) { 3108 case 0: 3109 types |= ZFS_TYPE_FILESYSTEM; 3110 break; 3111 case 1: 3112 types |= ZFS_TYPE_VOLUME; 3113 break; 3114 case 2: 3115 case 3: 3116 types |= ZFS_TYPE_SNAPSHOT; 3117 break; 3118 case 4: 3119 types |= ZFS_TYPE_BOOKMARK; 3120 break; 3121 case 5: 3122 types = ZFS_TYPE_DATASET | 3123 ZFS_TYPE_BOOKMARK; 3124 break; 3125 default: 3126 (void) fprintf(stderr, 3127 gettext("invalid type '%s'\n"), 3128 value); 3129 usage(B_FALSE); 3130 } 3131 } 3132 break; 3133 case ':': 3134 (void) fprintf(stderr, gettext("missing argument for " 3135 "'%c' option\n"), optopt); 3136 usage(B_FALSE); 3137 break; 3138 case '?': 3139 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3140 optopt); 3141 usage(B_FALSE); 3142 } 3143 } 3144 3145 argc -= optind; 3146 argv += optind; 3147 3148 if (fields == NULL) 3149 fields = default_fields; 3150 3151 /* 3152 * If "-o space" and no types were specified, don't display snapshots. 3153 */ 3154 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3155 types &= ~ZFS_TYPE_SNAPSHOT; 3156 3157 /* 3158 * If the user specifies '-o all', the zprop_get_list() doesn't 3159 * normally include the name of the dataset. For 'zfs list', we always 3160 * want this property to be first. 3161 */ 3162 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3163 != 0) 3164 usage(B_FALSE); 3165 3166 cb.cb_first = B_TRUE; 3167 3168 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3169 limit, list_callback, &cb); 3170 3171 zprop_free_list(cb.cb_proplist); 3172 zfs_free_sort_columns(sortcol); 3173 3174 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3175 (void) printf(gettext("no datasets available\n")); 3176 3177 return (ret); 3178 } 3179 3180 /* 3181 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3182 * zfs rename [-f] -p <fs | vol> <fs | vol> 3183 * zfs rename -r <snap> <snap> 3184 * 3185 * Renames the given dataset to another of the same type. 3186 * 3187 * The '-p' flag creates all the non-existing ancestors of the target first. 3188 */ 3189 /* ARGSUSED */ 3190 static int 3191 zfs_do_rename(int argc, char **argv) 3192 { 3193 zfs_handle_t *zhp; 3194 int c; 3195 int ret = 0; 3196 boolean_t recurse = B_FALSE; 3197 boolean_t parents = B_FALSE; 3198 boolean_t force_unmount = B_FALSE; 3199 3200 /* check options */ 3201 while ((c = getopt(argc, argv, "prf")) != -1) { 3202 switch (c) { 3203 case 'p': 3204 parents = B_TRUE; 3205 break; 3206 case 'r': 3207 recurse = B_TRUE; 3208 break; 3209 case 'f': 3210 force_unmount = B_TRUE; 3211 break; 3212 case '?': 3213 default: 3214 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3215 optopt); 3216 usage(B_FALSE); 3217 } 3218 } 3219 3220 argc -= optind; 3221 argv += optind; 3222 3223 /* check number of arguments */ 3224 if (argc < 1) { 3225 (void) fprintf(stderr, gettext("missing source dataset " 3226 "argument\n")); 3227 usage(B_FALSE); 3228 } 3229 if (argc < 2) { 3230 (void) fprintf(stderr, gettext("missing target dataset " 3231 "argument\n")); 3232 usage(B_FALSE); 3233 } 3234 if (argc > 2) { 3235 (void) fprintf(stderr, gettext("too many arguments\n")); 3236 usage(B_FALSE); 3237 } 3238 3239 if (recurse && parents) { 3240 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3241 "exclusive\n")); 3242 usage(B_FALSE); 3243 } 3244 3245 if (recurse && strchr(argv[0], '@') == 0) { 3246 (void) fprintf(stderr, gettext("source dataset for recursive " 3247 "rename must be a snapshot\n")); 3248 usage(B_FALSE); 3249 } 3250 3251 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3252 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3253 return (1); 3254 3255 /* If we were asked and the name looks good, try to create ancestors. */ 3256 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3257 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3258 zfs_close(zhp); 3259 return (1); 3260 } 3261 3262 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3263 3264 zfs_close(zhp); 3265 return (ret); 3266 } 3267 3268 /* 3269 * zfs promote <fs> 3270 * 3271 * Promotes the given clone fs to be the parent 3272 */ 3273 /* ARGSUSED */ 3274 static int 3275 zfs_do_promote(int argc, char **argv) 3276 { 3277 zfs_handle_t *zhp; 3278 int ret = 0; 3279 3280 /* check options */ 3281 if (argc > 1 && argv[1][0] == '-') { 3282 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3283 argv[1][1]); 3284 usage(B_FALSE); 3285 } 3286 3287 /* check number of arguments */ 3288 if (argc < 2) { 3289 (void) fprintf(stderr, gettext("missing clone filesystem" 3290 " argument\n")); 3291 usage(B_FALSE); 3292 } 3293 if (argc > 2) { 3294 (void) fprintf(stderr, gettext("too many arguments\n")); 3295 usage(B_FALSE); 3296 } 3297 3298 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3299 if (zhp == NULL) 3300 return (1); 3301 3302 ret = (zfs_promote(zhp) != 0); 3303 3304 3305 zfs_close(zhp); 3306 return (ret); 3307 } 3308 3309 /* 3310 * zfs rollback [-rRf] <snapshot> 3311 * 3312 * -r Delete any intervening snapshots before doing rollback 3313 * -R Delete any snapshots and their clones 3314 * -f ignored for backwards compatability 3315 * 3316 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3317 * since then and making it the active dataset. If more recent snapshots exist, 3318 * the command will complain unless the '-r' flag is given. 3319 */ 3320 typedef struct rollback_cbdata { 3321 uint64_t cb_create; 3322 boolean_t cb_first; 3323 int cb_doclones; 3324 char *cb_target; 3325 int cb_error; 3326 boolean_t cb_recurse; 3327 } rollback_cbdata_t; 3328 3329 static int 3330 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3331 { 3332 rollback_cbdata_t *cbp = data; 3333 3334 if (cbp->cb_first && cbp->cb_recurse) { 3335 (void) fprintf(stderr, gettext("cannot rollback to " 3336 "'%s': clones of previous snapshots exist\n"), 3337 cbp->cb_target); 3338 (void) fprintf(stderr, gettext("use '-R' to " 3339 "force deletion of the following clones and " 3340 "dependents:\n")); 3341 cbp->cb_first = 0; 3342 cbp->cb_error = 1; 3343 } 3344 3345 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3346 3347 zfs_close(zhp); 3348 return (0); 3349 } 3350 3351 /* 3352 * Report any snapshots more recent than the one specified. Used when '-r' is 3353 * not specified. We reuse this same callback for the snapshot dependents - if 3354 * 'cb_dependent' is set, then this is a dependent and we should report it 3355 * without checking the transaction group. 3356 */ 3357 static int 3358 rollback_check(zfs_handle_t *zhp, void *data) 3359 { 3360 rollback_cbdata_t *cbp = data; 3361 3362 if (cbp->cb_doclones) { 3363 zfs_close(zhp); 3364 return (0); 3365 } 3366 3367 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3368 if (cbp->cb_first && !cbp->cb_recurse) { 3369 (void) fprintf(stderr, gettext("cannot " 3370 "rollback to '%s': more recent snapshots " 3371 "or bookmarks exist\n"), 3372 cbp->cb_target); 3373 (void) fprintf(stderr, gettext("use '-r' to " 3374 "force deletion of the following " 3375 "snapshots and bookmarks:\n")); 3376 cbp->cb_first = 0; 3377 cbp->cb_error = 1; 3378 } 3379 3380 if (cbp->cb_recurse) { 3381 if (zfs_iter_dependents(zhp, B_TRUE, 3382 rollback_check_dependent, cbp) != 0) { 3383 zfs_close(zhp); 3384 return (-1); 3385 } 3386 } else { 3387 (void) fprintf(stderr, "%s\n", 3388 zfs_get_name(zhp)); 3389 } 3390 } 3391 zfs_close(zhp); 3392 return (0); 3393 } 3394 3395 static int 3396 zfs_do_rollback(int argc, char **argv) 3397 { 3398 int ret = 0; 3399 int c; 3400 boolean_t force = B_FALSE; 3401 rollback_cbdata_t cb = { 0 }; 3402 zfs_handle_t *zhp, *snap; 3403 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3404 char *delim; 3405 3406 /* check options */ 3407 while ((c = getopt(argc, argv, "rRf")) != -1) { 3408 switch (c) { 3409 case 'r': 3410 cb.cb_recurse = 1; 3411 break; 3412 case 'R': 3413 cb.cb_recurse = 1; 3414 cb.cb_doclones = 1; 3415 break; 3416 case 'f': 3417 force = B_TRUE; 3418 break; 3419 case '?': 3420 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3421 optopt); 3422 usage(B_FALSE); 3423 } 3424 } 3425 3426 argc -= optind; 3427 argv += optind; 3428 3429 /* check number of arguments */ 3430 if (argc < 1) { 3431 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3432 usage(B_FALSE); 3433 } 3434 if (argc > 1) { 3435 (void) fprintf(stderr, gettext("too many arguments\n")); 3436 usage(B_FALSE); 3437 } 3438 3439 /* open the snapshot */ 3440 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3441 return (1); 3442 3443 /* open the parent dataset */ 3444 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3445 verify((delim = strrchr(parentname, '@')) != NULL); 3446 *delim = '\0'; 3447 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3448 zfs_close(snap); 3449 return (1); 3450 } 3451 3452 /* 3453 * Check for more recent snapshots and/or clones based on the presence 3454 * of '-r' and '-R'. 3455 */ 3456 cb.cb_target = argv[0]; 3457 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3458 cb.cb_first = B_TRUE; 3459 cb.cb_error = 0; 3460 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3461 goto out; 3462 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3463 goto out; 3464 3465 if ((ret = cb.cb_error) != 0) 3466 goto out; 3467 3468 /* 3469 * Rollback parent to the given snapshot. 3470 */ 3471 ret = zfs_rollback(zhp, snap, force); 3472 3473 out: 3474 zfs_close(snap); 3475 zfs_close(zhp); 3476 3477 if (ret == 0) 3478 return (0); 3479 else 3480 return (1); 3481 } 3482 3483 /* 3484 * zfs set property=value ... { fs | snap | vol } ... 3485 * 3486 * Sets the given properties for all datasets specified on the command line. 3487 */ 3488 3489 static int 3490 set_callback(zfs_handle_t *zhp, void *data) 3491 { 3492 nvlist_t *props = data; 3493 3494 if (zfs_prop_set_list(zhp, props) != 0) { 3495 switch (libzfs_errno(g_zfs)) { 3496 case EZFS_MOUNTFAILED: 3497 (void) fprintf(stderr, gettext("property may be set " 3498 "but unable to remount filesystem\n")); 3499 break; 3500 case EZFS_SHARENFSFAILED: 3501 (void) fprintf(stderr, gettext("property may be set " 3502 "but unable to reshare filesystem\n")); 3503 break; 3504 } 3505 return (1); 3506 } 3507 return (0); 3508 } 3509 3510 static int 3511 zfs_do_set(int argc, char **argv) 3512 { 3513 nvlist_t *props = NULL; 3514 int ds_start = -1; /* argv idx of first dataset arg */ 3515 int ret = 0; 3516 3517 /* check for options */ 3518 if (argc > 1 && argv[1][0] == '-') { 3519 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3520 argv[1][1]); 3521 usage(B_FALSE); 3522 } 3523 3524 /* check number of arguments */ 3525 if (argc < 2) { 3526 (void) fprintf(stderr, gettext("missing arguments\n")); 3527 usage(B_FALSE); 3528 } 3529 if (argc < 3) { 3530 if (strchr(argv[1], '=') == NULL) { 3531 (void) fprintf(stderr, gettext("missing property=value " 3532 "argument(s)\n")); 3533 } else { 3534 (void) fprintf(stderr, gettext("missing dataset " 3535 "name(s)\n")); 3536 } 3537 usage(B_FALSE); 3538 } 3539 3540 /* validate argument order: prop=val args followed by dataset args */ 3541 for (int i = 1; i < argc; i++) { 3542 if (strchr(argv[i], '=') != NULL) { 3543 if (ds_start > 0) { 3544 /* out-of-order prop=val argument */ 3545 (void) fprintf(stderr, gettext("invalid " 3546 "argument order\n"), i); 3547 usage(B_FALSE); 3548 } 3549 } else if (ds_start < 0) { 3550 ds_start = i; 3551 } 3552 } 3553 if (ds_start < 0) { 3554 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3555 usage(B_FALSE); 3556 } 3557 3558 /* Populate a list of property settings */ 3559 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3560 nomem(); 3561 for (int i = 1; i < ds_start; i++) { 3562 if ((ret = parseprop(props, argv[i])) != 0) 3563 goto error; 3564 } 3565 3566 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3567 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3568 3569 error: 3570 nvlist_free(props); 3571 return (ret); 3572 } 3573 3574 typedef struct snap_cbdata { 3575 nvlist_t *sd_nvl; 3576 boolean_t sd_recursive; 3577 const char *sd_snapname; 3578 } snap_cbdata_t; 3579 3580 static int 3581 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3582 { 3583 snap_cbdata_t *sd = arg; 3584 char *name; 3585 int rv = 0; 3586 int error; 3587 3588 if (sd->sd_recursive && 3589 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3590 zfs_close(zhp); 3591 return (0); 3592 } 3593 3594 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3595 if (error == -1) 3596 nomem(); 3597 fnvlist_add_boolean(sd->sd_nvl, name); 3598 free(name); 3599 3600 if (sd->sd_recursive) 3601 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3602 zfs_close(zhp); 3603 return (rv); 3604 } 3605 3606 /* 3607 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3608 * 3609 * Creates a snapshot with the given name. While functionally equivalent to 3610 * 'zfs create', it is a separate command to differentiate intent. 3611 */ 3612 static int 3613 zfs_do_snapshot(int argc, char **argv) 3614 { 3615 int ret = 0; 3616 char c; 3617 nvlist_t *props; 3618 snap_cbdata_t sd = { 0 }; 3619 boolean_t multiple_snaps = B_FALSE; 3620 3621 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3622 nomem(); 3623 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3624 nomem(); 3625 3626 /* check options */ 3627 while ((c = getopt(argc, argv, "ro:")) != -1) { 3628 switch (c) { 3629 case 'o': 3630 if (parseprop(props, optarg) != 0) 3631 return (1); 3632 break; 3633 case 'r': 3634 sd.sd_recursive = B_TRUE; 3635 multiple_snaps = B_TRUE; 3636 break; 3637 case '?': 3638 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3639 optopt); 3640 goto usage; 3641 } 3642 } 3643 3644 argc -= optind; 3645 argv += optind; 3646 3647 /* check number of arguments */ 3648 if (argc < 1) { 3649 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3650 goto usage; 3651 } 3652 3653 if (argc > 1) 3654 multiple_snaps = B_TRUE; 3655 for (; argc > 0; argc--, argv++) { 3656 char *atp; 3657 zfs_handle_t *zhp; 3658 3659 atp = strchr(argv[0], '@'); 3660 if (atp == NULL) 3661 goto usage; 3662 *atp = '\0'; 3663 sd.sd_snapname = atp + 1; 3664 zhp = zfs_open(g_zfs, argv[0], 3665 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3666 if (zhp == NULL) 3667 goto usage; 3668 if (zfs_snapshot_cb(zhp, &sd) != 0) 3669 goto usage; 3670 } 3671 3672 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3673 nvlist_free(sd.sd_nvl); 3674 nvlist_free(props); 3675 if (ret != 0 && multiple_snaps) 3676 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3677 return (ret != 0); 3678 3679 usage: 3680 nvlist_free(sd.sd_nvl); 3681 nvlist_free(props); 3682 usage(B_FALSE); 3683 return (-1); 3684 } 3685 3686 /* 3687 * Send a backup stream to stdout. 3688 */ 3689 static int 3690 zfs_do_send(int argc, char **argv) 3691 { 3692 char *fromname = NULL; 3693 char *toname = NULL; 3694 char *resume_token = NULL; 3695 char *cp; 3696 zfs_handle_t *zhp; 3697 sendflags_t flags = { 0 }; 3698 int c, err; 3699 nvlist_t *dbgnv = NULL; 3700 boolean_t extraverbose = B_FALSE; 3701 3702 /* check options */ 3703 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3704 switch (c) { 3705 case 'i': 3706 if (fromname) 3707 usage(B_FALSE); 3708 fromname = optarg; 3709 break; 3710 case 'I': 3711 if (fromname) 3712 usage(B_FALSE); 3713 fromname = optarg; 3714 flags.doall = B_TRUE; 3715 break; 3716 case 'R': 3717 flags.replicate = B_TRUE; 3718 break; 3719 case 'p': 3720 flags.props = B_TRUE; 3721 break; 3722 case 'P': 3723 flags.parsable = B_TRUE; 3724 flags.verbose = B_TRUE; 3725 break; 3726 case 'v': 3727 if (flags.verbose) 3728 extraverbose = B_TRUE; 3729 flags.verbose = B_TRUE; 3730 flags.progress = B_TRUE; 3731 break; 3732 case 'D': 3733 flags.dedup = B_TRUE; 3734 break; 3735 case 'n': 3736 flags.dryrun = B_TRUE; 3737 break; 3738 case 'L': 3739 flags.largeblock = B_TRUE; 3740 break; 3741 case 'e': 3742 flags.embed_data = B_TRUE; 3743 break; 3744 case 't': 3745 resume_token = optarg; 3746 break; 3747 case ':': 3748 (void) fprintf(stderr, gettext("missing argument for " 3749 "'%c' option\n"), optopt); 3750 usage(B_FALSE); 3751 break; 3752 case '?': 3753 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3754 optopt); 3755 usage(B_FALSE); 3756 } 3757 } 3758 3759 argc -= optind; 3760 argv += optind; 3761 3762 if (resume_token != NULL) { 3763 if (fromname != NULL || flags.replicate || flags.props || 3764 flags.dedup) { 3765 (void) fprintf(stderr, 3766 gettext("invalid flags combined with -t\n")); 3767 usage(B_FALSE); 3768 } 3769 if (argc != 0) { 3770 (void) fprintf(stderr, gettext("no additional " 3771 "arguments are permitted with -t\n")); 3772 usage(B_FALSE); 3773 } 3774 } else { 3775 if (argc < 1) { 3776 (void) fprintf(stderr, 3777 gettext("missing snapshot argument\n")); 3778 usage(B_FALSE); 3779 } 3780 if (argc > 1) { 3781 (void) fprintf(stderr, gettext("too many arguments\n")); 3782 usage(B_FALSE); 3783 } 3784 } 3785 3786 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3787 (void) fprintf(stderr, 3788 gettext("Error: Stream can not be written to a terminal.\n" 3789 "You must redirect standard output.\n")); 3790 return (1); 3791 } 3792 3793 if (resume_token != NULL) { 3794 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3795 resume_token)); 3796 } 3797 3798 /* 3799 * Special case sending a filesystem, or from a bookmark. 3800 */ 3801 if (strchr(argv[0], '@') == NULL || 3802 (fromname && strchr(fromname, '#') != NULL)) { 3803 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3804 enum lzc_send_flags lzc_flags = 0; 3805 3806 if (flags.replicate || flags.doall || flags.props || 3807 flags.dedup || flags.dryrun || flags.verbose || 3808 flags.progress) { 3809 (void) fprintf(stderr, 3810 gettext("Error: " 3811 "Unsupported flag with filesystem or bookmark.\n")); 3812 return (1); 3813 } 3814 3815 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3816 if (zhp == NULL) 3817 return (1); 3818 3819 if (flags.largeblock) 3820 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3821 if (flags.embed_data) 3822 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3823 3824 if (fromname != NULL && 3825 (fromname[0] == '#' || fromname[0] == '@')) { 3826 /* 3827 * Incremental source name begins with # or @. 3828 * Default to same fs as target. 3829 */ 3830 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3831 cp = strchr(frombuf, '@'); 3832 if (cp != NULL) 3833 *cp = '\0'; 3834 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3835 fromname = frombuf; 3836 } 3837 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3838 zfs_close(zhp); 3839 return (err != 0); 3840 } 3841 3842 cp = strchr(argv[0], '@'); 3843 *cp = '\0'; 3844 toname = cp + 1; 3845 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3846 if (zhp == NULL) 3847 return (1); 3848 3849 /* 3850 * If they specified the full path to the snapshot, chop off 3851 * everything except the short name of the snapshot, but special 3852 * case if they specify the origin. 3853 */ 3854 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3855 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3856 zprop_source_t src; 3857 3858 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3859 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3860 3861 if (strcmp(origin, fromname) == 0) { 3862 fromname = NULL; 3863 flags.fromorigin = B_TRUE; 3864 } else { 3865 *cp = '\0'; 3866 if (cp != fromname && strcmp(argv[0], fromname)) { 3867 (void) fprintf(stderr, 3868 gettext("incremental source must be " 3869 "in same filesystem\n")); 3870 usage(B_FALSE); 3871 } 3872 fromname = cp + 1; 3873 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3874 (void) fprintf(stderr, 3875 gettext("invalid incremental source\n")); 3876 usage(B_FALSE); 3877 } 3878 } 3879 } 3880 3881 if (flags.replicate && fromname == NULL) 3882 flags.doall = B_TRUE; 3883 3884 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3885 extraverbose ? &dbgnv : NULL); 3886 3887 if (extraverbose && dbgnv != NULL) { 3888 /* 3889 * dump_nvlist prints to stdout, but that's been 3890 * redirected to a file. Make it print to stderr 3891 * instead. 3892 */ 3893 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3894 dump_nvlist(dbgnv, 0); 3895 nvlist_free(dbgnv); 3896 } 3897 zfs_close(zhp); 3898 3899 return (err != 0); 3900 } 3901 3902 /* 3903 * Restore a backup stream from stdin. 3904 */ 3905 static int 3906 zfs_do_receive(int argc, char **argv) 3907 { 3908 int c, err; 3909 recvflags_t flags = { 0 }; 3910 boolean_t abort_resumable = B_FALSE; 3911 3912 nvlist_t *props; 3913 nvpair_t *nvp = NULL; 3914 3915 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3916 nomem(); 3917 3918 /* check options */ 3919 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3920 switch (c) { 3921 case 'o': 3922 if (parseprop(props, optarg) != 0) 3923 return (1); 3924 break; 3925 case 'd': 3926 flags.isprefix = B_TRUE; 3927 break; 3928 case 'e': 3929 flags.isprefix = B_TRUE; 3930 flags.istail = B_TRUE; 3931 break; 3932 case 'n': 3933 flags.dryrun = B_TRUE; 3934 break; 3935 case 'u': 3936 flags.nomount = B_TRUE; 3937 break; 3938 case 'v': 3939 flags.verbose = B_TRUE; 3940 break; 3941 case 's': 3942 flags.resumable = B_TRUE; 3943 break; 3944 case 'F': 3945 flags.force = B_TRUE; 3946 break; 3947 case 'A': 3948 abort_resumable = B_TRUE; 3949 break; 3950 case ':': 3951 (void) fprintf(stderr, gettext("missing argument for " 3952 "'%c' option\n"), optopt); 3953 usage(B_FALSE); 3954 break; 3955 case '?': 3956 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3957 optopt); 3958 usage(B_FALSE); 3959 } 3960 } 3961 3962 argc -= optind; 3963 argv += optind; 3964 3965 /* check number of arguments */ 3966 if (argc < 1) { 3967 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3968 usage(B_FALSE); 3969 } 3970 if (argc > 1) { 3971 (void) fprintf(stderr, gettext("too many arguments\n")); 3972 usage(B_FALSE); 3973 } 3974 3975 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3976 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3977 (void) fprintf(stderr, gettext("invalid option")); 3978 usage(B_FALSE); 3979 } 3980 } 3981 3982 if (abort_resumable) { 3983 if (flags.isprefix || flags.istail || flags.dryrun || 3984 flags.resumable || flags.nomount) { 3985 (void) fprintf(stderr, gettext("invalid option")); 3986 usage(B_FALSE); 3987 } 3988 3989 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 3990 (void) snprintf(namebuf, sizeof (namebuf), 3991 "%s/%%recv", argv[0]); 3992 3993 if (zfs_dataset_exists(g_zfs, namebuf, 3994 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 3995 zfs_handle_t *zhp = zfs_open(g_zfs, 3996 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3997 if (zhp == NULL) 3998 return (1); 3999 err = zfs_destroy(zhp, B_FALSE); 4000 } else { 4001 zfs_handle_t *zhp = zfs_open(g_zfs, 4002 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4003 if (zhp == NULL) 4004 usage(B_FALSE); 4005 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4006 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4007 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4008 (void) fprintf(stderr, 4009 gettext("'%s' does not have any " 4010 "resumable receive state to abort\n"), 4011 argv[0]); 4012 return (1); 4013 } 4014 err = zfs_destroy(zhp, B_FALSE); 4015 } 4016 4017 return (err != 0); 4018 } 4019 4020 if (isatty(STDIN_FILENO)) { 4021 (void) fprintf(stderr, 4022 gettext("Error: Backup stream can not be read " 4023 "from a terminal.\n" 4024 "You must redirect standard input.\n")); 4025 return (1); 4026 } 4027 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4028 4029 return (err != 0); 4030 } 4031 4032 /* 4033 * allow/unallow stuff 4034 */ 4035 /* copied from zfs/sys/dsl_deleg.h */ 4036 #define ZFS_DELEG_PERM_CREATE "create" 4037 #define ZFS_DELEG_PERM_DESTROY "destroy" 4038 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4039 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4040 #define ZFS_DELEG_PERM_CLONE "clone" 4041 #define ZFS_DELEG_PERM_PROMOTE "promote" 4042 #define ZFS_DELEG_PERM_RENAME "rename" 4043 #define ZFS_DELEG_PERM_MOUNT "mount" 4044 #define ZFS_DELEG_PERM_SHARE "share" 4045 #define ZFS_DELEG_PERM_SEND "send" 4046 #define ZFS_DELEG_PERM_RECEIVE "receive" 4047 #define ZFS_DELEG_PERM_ALLOW "allow" 4048 #define ZFS_DELEG_PERM_USERPROP "userprop" 4049 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4050 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4051 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4052 #define ZFS_DELEG_PERM_USERUSED "userused" 4053 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4054 #define ZFS_DELEG_PERM_HOLD "hold" 4055 #define ZFS_DELEG_PERM_RELEASE "release" 4056 #define ZFS_DELEG_PERM_DIFF "diff" 4057 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4058 4059 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4060 4061 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4062 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4063 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4064 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4065 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4066 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4067 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4068 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4069 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4070 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4071 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4072 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4073 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4074 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4075 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4076 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4077 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4078 4079 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4080 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4081 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4082 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4083 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4084 { NULL, ZFS_DELEG_NOTE_NONE } 4085 }; 4086 4087 /* permission structure */ 4088 typedef struct deleg_perm { 4089 zfs_deleg_who_type_t dp_who_type; 4090 const char *dp_name; 4091 boolean_t dp_local; 4092 boolean_t dp_descend; 4093 } deleg_perm_t; 4094 4095 /* */ 4096 typedef struct deleg_perm_node { 4097 deleg_perm_t dpn_perm; 4098 4099 uu_avl_node_t dpn_avl_node; 4100 } deleg_perm_node_t; 4101 4102 typedef struct fs_perm fs_perm_t; 4103 4104 /* permissions set */ 4105 typedef struct who_perm { 4106 zfs_deleg_who_type_t who_type; 4107 const char *who_name; /* id */ 4108 char who_ug_name[256]; /* user/group name */ 4109 fs_perm_t *who_fsperm; /* uplink */ 4110 4111 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4112 } who_perm_t; 4113 4114 /* */ 4115 typedef struct who_perm_node { 4116 who_perm_t who_perm; 4117 uu_avl_node_t who_avl_node; 4118 } who_perm_node_t; 4119 4120 typedef struct fs_perm_set fs_perm_set_t; 4121 /* fs permissions */ 4122 struct fs_perm { 4123 const char *fsp_name; 4124 4125 uu_avl_t *fsp_sc_avl; /* sets,create */ 4126 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4127 4128 fs_perm_set_t *fsp_set; /* uplink */ 4129 }; 4130 4131 /* */ 4132 typedef struct fs_perm_node { 4133 fs_perm_t fspn_fsperm; 4134 uu_avl_t *fspn_avl; 4135 4136 uu_list_node_t fspn_list_node; 4137 } fs_perm_node_t; 4138 4139 /* top level structure */ 4140 struct fs_perm_set { 4141 uu_list_pool_t *fsps_list_pool; 4142 uu_list_t *fsps_list; /* list of fs_perms */ 4143 4144 uu_avl_pool_t *fsps_named_set_avl_pool; 4145 uu_avl_pool_t *fsps_who_perm_avl_pool; 4146 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4147 }; 4148 4149 static inline const char * 4150 deleg_perm_type(zfs_deleg_note_t note) 4151 { 4152 /* subcommands */ 4153 switch (note) { 4154 /* SUBCOMMANDS */ 4155 /* OTHER */ 4156 case ZFS_DELEG_NOTE_GROUPQUOTA: 4157 case ZFS_DELEG_NOTE_GROUPUSED: 4158 case ZFS_DELEG_NOTE_USERPROP: 4159 case ZFS_DELEG_NOTE_USERQUOTA: 4160 case ZFS_DELEG_NOTE_USERUSED: 4161 /* other */ 4162 return (gettext("other")); 4163 default: 4164 return (gettext("subcommand")); 4165 } 4166 } 4167 4168 static int inline 4169 who_type2weight(zfs_deleg_who_type_t who_type) 4170 { 4171 int res; 4172 switch (who_type) { 4173 case ZFS_DELEG_NAMED_SET_SETS: 4174 case ZFS_DELEG_NAMED_SET: 4175 res = 0; 4176 break; 4177 case ZFS_DELEG_CREATE_SETS: 4178 case ZFS_DELEG_CREATE: 4179 res = 1; 4180 break; 4181 case ZFS_DELEG_USER_SETS: 4182 case ZFS_DELEG_USER: 4183 res = 2; 4184 break; 4185 case ZFS_DELEG_GROUP_SETS: 4186 case ZFS_DELEG_GROUP: 4187 res = 3; 4188 break; 4189 case ZFS_DELEG_EVERYONE_SETS: 4190 case ZFS_DELEG_EVERYONE: 4191 res = 4; 4192 break; 4193 default: 4194 res = -1; 4195 } 4196 4197 return (res); 4198 } 4199 4200 /* ARGSUSED */ 4201 static int 4202 who_perm_compare(const void *larg, const void *rarg, void *unused) 4203 { 4204 const who_perm_node_t *l = larg; 4205 const who_perm_node_t *r = rarg; 4206 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4207 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4208 int lweight = who_type2weight(ltype); 4209 int rweight = who_type2weight(rtype); 4210 int res = lweight - rweight; 4211 if (res == 0) 4212 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4213 ZFS_MAX_DELEG_NAME-1); 4214 4215 if (res == 0) 4216 return (0); 4217 if (res > 0) 4218 return (1); 4219 else 4220 return (-1); 4221 } 4222 4223 /* ARGSUSED */ 4224 static int 4225 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4226 { 4227 const deleg_perm_node_t *l = larg; 4228 const deleg_perm_node_t *r = rarg; 4229 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4230 ZFS_MAX_DELEG_NAME-1); 4231 4232 if (res == 0) 4233 return (0); 4234 4235 if (res > 0) 4236 return (1); 4237 else 4238 return (-1); 4239 } 4240 4241 static inline void 4242 fs_perm_set_init(fs_perm_set_t *fspset) 4243 { 4244 bzero(fspset, sizeof (fs_perm_set_t)); 4245 4246 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4247 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4248 NULL, UU_DEFAULT)) == NULL) 4249 nomem(); 4250 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4251 UU_DEFAULT)) == NULL) 4252 nomem(); 4253 4254 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4255 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4256 who_perm_node_t, who_avl_node), who_perm_compare, 4257 UU_DEFAULT)) == NULL) 4258 nomem(); 4259 4260 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4261 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4262 who_perm_node_t, who_avl_node), who_perm_compare, 4263 UU_DEFAULT)) == NULL) 4264 nomem(); 4265 4266 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4267 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4268 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4269 == NULL) 4270 nomem(); 4271 } 4272 4273 static inline void fs_perm_fini(fs_perm_t *); 4274 static inline void who_perm_fini(who_perm_t *); 4275 4276 static inline void 4277 fs_perm_set_fini(fs_perm_set_t *fspset) 4278 { 4279 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4280 4281 while (node != NULL) { 4282 fs_perm_node_t *next_node = 4283 uu_list_next(fspset->fsps_list, node); 4284 fs_perm_t *fsperm = &node->fspn_fsperm; 4285 fs_perm_fini(fsperm); 4286 uu_list_remove(fspset->fsps_list, node); 4287 free(node); 4288 node = next_node; 4289 } 4290 4291 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4292 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4293 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4294 } 4295 4296 static inline void 4297 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4298 const char *name) 4299 { 4300 deleg_perm->dp_who_type = type; 4301 deleg_perm->dp_name = name; 4302 } 4303 4304 static inline void 4305 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4306 zfs_deleg_who_type_t type, const char *name) 4307 { 4308 uu_avl_pool_t *pool; 4309 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4310 4311 bzero(who_perm, sizeof (who_perm_t)); 4312 4313 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4314 UU_DEFAULT)) == NULL) 4315 nomem(); 4316 4317 who_perm->who_type = type; 4318 who_perm->who_name = name; 4319 who_perm->who_fsperm = fsperm; 4320 } 4321 4322 static inline void 4323 who_perm_fini(who_perm_t *who_perm) 4324 { 4325 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4326 4327 while (node != NULL) { 4328 deleg_perm_node_t *next_node = 4329 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4330 4331 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4332 free(node); 4333 node = next_node; 4334 } 4335 4336 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4337 } 4338 4339 static inline void 4340 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4341 { 4342 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4343 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4344 4345 bzero(fsperm, sizeof (fs_perm_t)); 4346 4347 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4348 == NULL) 4349 nomem(); 4350 4351 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4352 == NULL) 4353 nomem(); 4354 4355 fsperm->fsp_set = fspset; 4356 fsperm->fsp_name = fsname; 4357 } 4358 4359 static inline void 4360 fs_perm_fini(fs_perm_t *fsperm) 4361 { 4362 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4363 while (node != NULL) { 4364 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4365 node); 4366 who_perm_t *who_perm = &node->who_perm; 4367 who_perm_fini(who_perm); 4368 uu_avl_remove(fsperm->fsp_sc_avl, node); 4369 free(node); 4370 node = next_node; 4371 } 4372 4373 node = uu_avl_first(fsperm->fsp_uge_avl); 4374 while (node != NULL) { 4375 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4376 node); 4377 who_perm_t *who_perm = &node->who_perm; 4378 who_perm_fini(who_perm); 4379 uu_avl_remove(fsperm->fsp_uge_avl, node); 4380 free(node); 4381 node = next_node; 4382 } 4383 4384 uu_avl_destroy(fsperm->fsp_sc_avl); 4385 uu_avl_destroy(fsperm->fsp_uge_avl); 4386 } 4387 4388 static void inline 4389 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4390 zfs_deleg_who_type_t who_type, const char *name, char locality) 4391 { 4392 uu_avl_index_t idx = 0; 4393 4394 deleg_perm_node_t *found_node = NULL; 4395 deleg_perm_t *deleg_perm = &node->dpn_perm; 4396 4397 deleg_perm_init(deleg_perm, who_type, name); 4398 4399 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4400 == NULL) 4401 uu_avl_insert(avl, node, idx); 4402 else { 4403 node = found_node; 4404 deleg_perm = &node->dpn_perm; 4405 } 4406 4407 4408 switch (locality) { 4409 case ZFS_DELEG_LOCAL: 4410 deleg_perm->dp_local = B_TRUE; 4411 break; 4412 case ZFS_DELEG_DESCENDENT: 4413 deleg_perm->dp_descend = B_TRUE; 4414 break; 4415 case ZFS_DELEG_NA: 4416 break; 4417 default: 4418 assert(B_FALSE); /* invalid locality */ 4419 } 4420 } 4421 4422 static inline int 4423 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4424 { 4425 nvpair_t *nvp = NULL; 4426 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4427 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4428 zfs_deleg_who_type_t who_type = who_perm->who_type; 4429 4430 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4431 const char *name = nvpair_name(nvp); 4432 data_type_t type = nvpair_type(nvp); 4433 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4434 deleg_perm_node_t *node = 4435 safe_malloc(sizeof (deleg_perm_node_t)); 4436 4437 assert(type == DATA_TYPE_BOOLEAN); 4438 4439 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4440 set_deleg_perm_node(avl, node, who_type, name, locality); 4441 } 4442 4443 return (0); 4444 } 4445 4446 static inline int 4447 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4448 { 4449 nvpair_t *nvp = NULL; 4450 fs_perm_set_t *fspset = fsperm->fsp_set; 4451 4452 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4453 nvlist_t *nvl2 = NULL; 4454 const char *name = nvpair_name(nvp); 4455 uu_avl_t *avl = NULL; 4456 uu_avl_pool_t *avl_pool; 4457 zfs_deleg_who_type_t perm_type = name[0]; 4458 char perm_locality = name[1]; 4459 const char *perm_name = name + 3; 4460 boolean_t is_set = B_TRUE; 4461 who_perm_t *who_perm = NULL; 4462 4463 assert('$' == name[2]); 4464 4465 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4466 return (-1); 4467 4468 switch (perm_type) { 4469 case ZFS_DELEG_CREATE: 4470 case ZFS_DELEG_CREATE_SETS: 4471 case ZFS_DELEG_NAMED_SET: 4472 case ZFS_DELEG_NAMED_SET_SETS: 4473 avl_pool = fspset->fsps_named_set_avl_pool; 4474 avl = fsperm->fsp_sc_avl; 4475 break; 4476 case ZFS_DELEG_USER: 4477 case ZFS_DELEG_USER_SETS: 4478 case ZFS_DELEG_GROUP: 4479 case ZFS_DELEG_GROUP_SETS: 4480 case ZFS_DELEG_EVERYONE: 4481 case ZFS_DELEG_EVERYONE_SETS: 4482 avl_pool = fspset->fsps_who_perm_avl_pool; 4483 avl = fsperm->fsp_uge_avl; 4484 break; 4485 } 4486 4487 if (is_set) { 4488 who_perm_node_t *found_node = NULL; 4489 who_perm_node_t *node = safe_malloc( 4490 sizeof (who_perm_node_t)); 4491 who_perm = &node->who_perm; 4492 uu_avl_index_t idx = 0; 4493 4494 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4495 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4496 4497 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4498 == NULL) { 4499 if (avl == fsperm->fsp_uge_avl) { 4500 uid_t rid = 0; 4501 struct passwd *p = NULL; 4502 struct group *g = NULL; 4503 const char *nice_name = NULL; 4504 4505 switch (perm_type) { 4506 case ZFS_DELEG_USER_SETS: 4507 case ZFS_DELEG_USER: 4508 rid = atoi(perm_name); 4509 p = getpwuid(rid); 4510 if (p) 4511 nice_name = p->pw_name; 4512 break; 4513 case ZFS_DELEG_GROUP_SETS: 4514 case ZFS_DELEG_GROUP: 4515 rid = atoi(perm_name); 4516 g = getgrgid(rid); 4517 if (g) 4518 nice_name = g->gr_name; 4519 break; 4520 } 4521 4522 if (nice_name != NULL) 4523 (void) strlcpy( 4524 node->who_perm.who_ug_name, 4525 nice_name, 256); 4526 } 4527 4528 uu_avl_insert(avl, node, idx); 4529 } else { 4530 node = found_node; 4531 who_perm = &node->who_perm; 4532 } 4533 } 4534 4535 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4536 } 4537 4538 return (0); 4539 } 4540 4541 static inline int 4542 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4543 { 4544 nvpair_t *nvp = NULL; 4545 uu_avl_index_t idx = 0; 4546 4547 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4548 nvlist_t *nvl2 = NULL; 4549 const char *fsname = nvpair_name(nvp); 4550 data_type_t type = nvpair_type(nvp); 4551 fs_perm_t *fsperm = NULL; 4552 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4553 if (node == NULL) 4554 nomem(); 4555 4556 fsperm = &node->fspn_fsperm; 4557 4558 assert(DATA_TYPE_NVLIST == type); 4559 4560 uu_list_node_init(node, &node->fspn_list_node, 4561 fspset->fsps_list_pool); 4562 4563 idx = uu_list_numnodes(fspset->fsps_list); 4564 fs_perm_init(fsperm, fspset, fsname); 4565 4566 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4567 return (-1); 4568 4569 (void) parse_fs_perm(fsperm, nvl2); 4570 4571 uu_list_insert(fspset->fsps_list, node, idx); 4572 } 4573 4574 return (0); 4575 } 4576 4577 static inline const char * 4578 deleg_perm_comment(zfs_deleg_note_t note) 4579 { 4580 const char *str = ""; 4581 4582 /* subcommands */ 4583 switch (note) { 4584 /* SUBCOMMANDS */ 4585 case ZFS_DELEG_NOTE_ALLOW: 4586 str = gettext("Must also have the permission that is being" 4587 "\n\t\t\t\tallowed"); 4588 break; 4589 case ZFS_DELEG_NOTE_CLONE: 4590 str = gettext("Must also have the 'create' ability and 'mount'" 4591 "\n\t\t\t\tability in the origin file system"); 4592 break; 4593 case ZFS_DELEG_NOTE_CREATE: 4594 str = gettext("Must also have the 'mount' ability"); 4595 break; 4596 case ZFS_DELEG_NOTE_DESTROY: 4597 str = gettext("Must also have the 'mount' ability"); 4598 break; 4599 case ZFS_DELEG_NOTE_DIFF: 4600 str = gettext("Allows lookup of paths within a dataset;" 4601 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4602 "\n\t\t\t\tin order to use zfs diff"); 4603 break; 4604 case ZFS_DELEG_NOTE_HOLD: 4605 str = gettext("Allows adding a user hold to a snapshot"); 4606 break; 4607 case ZFS_DELEG_NOTE_MOUNT: 4608 str = gettext("Allows mount/umount of ZFS datasets"); 4609 break; 4610 case ZFS_DELEG_NOTE_PROMOTE: 4611 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4612 " 'promote' ability in the origin file system"); 4613 break; 4614 case ZFS_DELEG_NOTE_RECEIVE: 4615 str = gettext("Must also have the 'mount' and 'create'" 4616 " ability"); 4617 break; 4618 case ZFS_DELEG_NOTE_RELEASE: 4619 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4620 "might destroy the snapshot"); 4621 break; 4622 case ZFS_DELEG_NOTE_RENAME: 4623 str = gettext("Must also have the 'mount' and 'create'" 4624 "\n\t\t\t\tability in the new parent"); 4625 break; 4626 case ZFS_DELEG_NOTE_ROLLBACK: 4627 str = gettext(""); 4628 break; 4629 case ZFS_DELEG_NOTE_SEND: 4630 str = gettext(""); 4631 break; 4632 case ZFS_DELEG_NOTE_SHARE: 4633 str = gettext("Allows sharing file systems over NFS or SMB" 4634 "\n\t\t\t\tprotocols"); 4635 break; 4636 case ZFS_DELEG_NOTE_SNAPSHOT: 4637 str = gettext(""); 4638 break; 4639 /* 4640 * case ZFS_DELEG_NOTE_VSCAN: 4641 * str = gettext(""); 4642 * break; 4643 */ 4644 /* OTHER */ 4645 case ZFS_DELEG_NOTE_GROUPQUOTA: 4646 str = gettext("Allows accessing any groupquota@... property"); 4647 break; 4648 case ZFS_DELEG_NOTE_GROUPUSED: 4649 str = gettext("Allows reading any groupused@... property"); 4650 break; 4651 case ZFS_DELEG_NOTE_USERPROP: 4652 str = gettext("Allows changing any user property"); 4653 break; 4654 case ZFS_DELEG_NOTE_USERQUOTA: 4655 str = gettext("Allows accessing any userquota@... property"); 4656 break; 4657 case ZFS_DELEG_NOTE_USERUSED: 4658 str = gettext("Allows reading any userused@... property"); 4659 break; 4660 /* other */ 4661 default: 4662 str = ""; 4663 } 4664 4665 return (str); 4666 } 4667 4668 struct allow_opts { 4669 boolean_t local; 4670 boolean_t descend; 4671 boolean_t user; 4672 boolean_t group; 4673 boolean_t everyone; 4674 boolean_t create; 4675 boolean_t set; 4676 boolean_t recursive; /* unallow only */ 4677 boolean_t prt_usage; 4678 4679 boolean_t prt_perms; 4680 char *who; 4681 char *perms; 4682 const char *dataset; 4683 }; 4684 4685 static inline int 4686 prop_cmp(const void *a, const void *b) 4687 { 4688 const char *str1 = *(const char **)a; 4689 const char *str2 = *(const char **)b; 4690 return (strcmp(str1, str2)); 4691 } 4692 4693 static void 4694 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4695 { 4696 const char *opt_desc[] = { 4697 "-h", gettext("show this help message and exit"), 4698 "-l", gettext("set permission locally"), 4699 "-d", gettext("set permission for descents"), 4700 "-u", gettext("set permission for user"), 4701 "-g", gettext("set permission for group"), 4702 "-e", gettext("set permission for everyone"), 4703 "-c", gettext("set create time permission"), 4704 "-s", gettext("define permission set"), 4705 /* unallow only */ 4706 "-r", gettext("remove permissions recursively"), 4707 }; 4708 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4709 size_t allow_size = unallow_size - 2; 4710 const char *props[ZFS_NUM_PROPS]; 4711 int i; 4712 size_t count = 0; 4713 FILE *fp = requested ? stdout : stderr; 4714 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4715 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4716 4717 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4718 HELP_ALLOW)); 4719 (void) fprintf(fp, gettext("Options:\n")); 4720 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4721 const char *opt = opt_desc[i++]; 4722 const char *optdsc = opt_desc[i]; 4723 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4724 } 4725 4726 (void) fprintf(fp, gettext("\nThe following permissions are " 4727 "supported:\n\n")); 4728 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4729 gettext("NOTES")); 4730 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4731 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4732 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4733 const char *perm_type = deleg_perm_type(perm_note); 4734 const char *perm_comment = deleg_perm_comment(perm_note); 4735 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4736 } 4737 4738 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4739 zprop_desc_t *pd = &pdtbl[i]; 4740 if (pd->pd_visible != B_TRUE) 4741 continue; 4742 4743 if (pd->pd_attr == PROP_READONLY) 4744 continue; 4745 4746 props[count++] = pd->pd_name; 4747 } 4748 props[count] = NULL; 4749 4750 qsort(props, count, sizeof (char *), prop_cmp); 4751 4752 for (i = 0; i < count; i++) 4753 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4754 4755 if (msg != NULL) 4756 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4757 4758 exit(requested ? 0 : 2); 4759 } 4760 4761 static inline const char * 4762 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4763 char **permsp) 4764 { 4765 if (un && argc == expected_argc - 1) 4766 *permsp = NULL; 4767 else if (argc == expected_argc) 4768 *permsp = argv[argc - 2]; 4769 else 4770 allow_usage(un, B_FALSE, 4771 gettext("wrong number of parameters\n")); 4772 4773 return (argv[argc - 1]); 4774 } 4775 4776 static void 4777 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4778 { 4779 int uge_sum = opts->user + opts->group + opts->everyone; 4780 int csuge_sum = opts->create + opts->set + uge_sum; 4781 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4782 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4783 4784 if (uge_sum > 1) 4785 allow_usage(un, B_FALSE, 4786 gettext("-u, -g, and -e are mutually exclusive\n")); 4787 4788 if (opts->prt_usage) 4789 if (argc == 0 && all_sum == 0) 4790 allow_usage(un, B_TRUE, NULL); 4791 else 4792 usage(B_FALSE); 4793 4794 if (opts->set) { 4795 if (csuge_sum > 1) 4796 allow_usage(un, B_FALSE, 4797 gettext("invalid options combined with -s\n")); 4798 4799 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4800 if (argv[0][0] != '@') 4801 allow_usage(un, B_FALSE, 4802 gettext("invalid set name: missing '@' prefix\n")); 4803 opts->who = argv[0]; 4804 } else if (opts->create) { 4805 if (ldcsuge_sum > 1) 4806 allow_usage(un, B_FALSE, 4807 gettext("invalid options combined with -c\n")); 4808 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4809 } else if (opts->everyone) { 4810 if (csuge_sum > 1) 4811 allow_usage(un, B_FALSE, 4812 gettext("invalid options combined with -e\n")); 4813 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4814 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4815 == 0) { 4816 opts->everyone = B_TRUE; 4817 argc--; 4818 argv++; 4819 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4820 } else if (argc == 1 && !un) { 4821 opts->prt_perms = B_TRUE; 4822 opts->dataset = argv[argc-1]; 4823 } else { 4824 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4825 opts->who = argv[0]; 4826 } 4827 4828 if (!opts->local && !opts->descend) { 4829 opts->local = B_TRUE; 4830 opts->descend = B_TRUE; 4831 } 4832 } 4833 4834 static void 4835 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4836 const char *who, char *perms, nvlist_t *top_nvl) 4837 { 4838 int i; 4839 char ld[2] = { '\0', '\0' }; 4840 char who_buf[MAXNAMELEN + 32]; 4841 char base_type; 4842 char set_type; 4843 nvlist_t *base_nvl = NULL; 4844 nvlist_t *set_nvl = NULL; 4845 nvlist_t *nvl; 4846 4847 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4848 nomem(); 4849 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4850 nomem(); 4851 4852 switch (type) { 4853 case ZFS_DELEG_NAMED_SET_SETS: 4854 case ZFS_DELEG_NAMED_SET: 4855 set_type = ZFS_DELEG_NAMED_SET_SETS; 4856 base_type = ZFS_DELEG_NAMED_SET; 4857 ld[0] = ZFS_DELEG_NA; 4858 break; 4859 case ZFS_DELEG_CREATE_SETS: 4860 case ZFS_DELEG_CREATE: 4861 set_type = ZFS_DELEG_CREATE_SETS; 4862 base_type = ZFS_DELEG_CREATE; 4863 ld[0] = ZFS_DELEG_NA; 4864 break; 4865 case ZFS_DELEG_USER_SETS: 4866 case ZFS_DELEG_USER: 4867 set_type = ZFS_DELEG_USER_SETS; 4868 base_type = ZFS_DELEG_USER; 4869 if (local) 4870 ld[0] = ZFS_DELEG_LOCAL; 4871 if (descend) 4872 ld[1] = ZFS_DELEG_DESCENDENT; 4873 break; 4874 case ZFS_DELEG_GROUP_SETS: 4875 case ZFS_DELEG_GROUP: 4876 set_type = ZFS_DELEG_GROUP_SETS; 4877 base_type = ZFS_DELEG_GROUP; 4878 if (local) 4879 ld[0] = ZFS_DELEG_LOCAL; 4880 if (descend) 4881 ld[1] = ZFS_DELEG_DESCENDENT; 4882 break; 4883 case ZFS_DELEG_EVERYONE_SETS: 4884 case ZFS_DELEG_EVERYONE: 4885 set_type = ZFS_DELEG_EVERYONE_SETS; 4886 base_type = ZFS_DELEG_EVERYONE; 4887 if (local) 4888 ld[0] = ZFS_DELEG_LOCAL; 4889 if (descend) 4890 ld[1] = ZFS_DELEG_DESCENDENT; 4891 } 4892 4893 if (perms != NULL) { 4894 char *curr = perms; 4895 char *end = curr + strlen(perms); 4896 4897 while (curr < end) { 4898 char *delim = strchr(curr, ','); 4899 if (delim == NULL) 4900 delim = end; 4901 else 4902 *delim = '\0'; 4903 4904 if (curr[0] == '@') 4905 nvl = set_nvl; 4906 else 4907 nvl = base_nvl; 4908 4909 (void) nvlist_add_boolean(nvl, curr); 4910 if (delim != end) 4911 *delim = ','; 4912 curr = delim + 1; 4913 } 4914 4915 for (i = 0; i < 2; i++) { 4916 char locality = ld[i]; 4917 if (locality == 0) 4918 continue; 4919 4920 if (!nvlist_empty(base_nvl)) { 4921 if (who != NULL) 4922 (void) snprintf(who_buf, 4923 sizeof (who_buf), "%c%c$%s", 4924 base_type, locality, who); 4925 else 4926 (void) snprintf(who_buf, 4927 sizeof (who_buf), "%c%c$", 4928 base_type, locality); 4929 4930 (void) nvlist_add_nvlist(top_nvl, who_buf, 4931 base_nvl); 4932 } 4933 4934 4935 if (!nvlist_empty(set_nvl)) { 4936 if (who != NULL) 4937 (void) snprintf(who_buf, 4938 sizeof (who_buf), "%c%c$%s", 4939 set_type, locality, who); 4940 else 4941 (void) snprintf(who_buf, 4942 sizeof (who_buf), "%c%c$", 4943 set_type, locality); 4944 4945 (void) nvlist_add_nvlist(top_nvl, who_buf, 4946 set_nvl); 4947 } 4948 } 4949 } else { 4950 for (i = 0; i < 2; i++) { 4951 char locality = ld[i]; 4952 if (locality == 0) 4953 continue; 4954 4955 if (who != NULL) 4956 (void) snprintf(who_buf, sizeof (who_buf), 4957 "%c%c$%s", base_type, locality, who); 4958 else 4959 (void) snprintf(who_buf, sizeof (who_buf), 4960 "%c%c$", base_type, locality); 4961 (void) nvlist_add_boolean(top_nvl, who_buf); 4962 4963 if (who != NULL) 4964 (void) snprintf(who_buf, sizeof (who_buf), 4965 "%c%c$%s", set_type, locality, who); 4966 else 4967 (void) snprintf(who_buf, sizeof (who_buf), 4968 "%c%c$", set_type, locality); 4969 (void) nvlist_add_boolean(top_nvl, who_buf); 4970 } 4971 } 4972 } 4973 4974 static int 4975 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4976 { 4977 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4978 nomem(); 4979 4980 if (opts->set) { 4981 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4982 opts->descend, opts->who, opts->perms, *nvlp); 4983 } else if (opts->create) { 4984 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4985 opts->descend, NULL, opts->perms, *nvlp); 4986 } else if (opts->everyone) { 4987 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4988 opts->descend, NULL, opts->perms, *nvlp); 4989 } else { 4990 char *curr = opts->who; 4991 char *end = curr + strlen(curr); 4992 4993 while (curr < end) { 4994 const char *who; 4995 zfs_deleg_who_type_t who_type; 4996 char *endch; 4997 char *delim = strchr(curr, ','); 4998 char errbuf[256]; 4999 char id[64]; 5000 struct passwd *p = NULL; 5001 struct group *g = NULL; 5002 5003 uid_t rid; 5004 if (delim == NULL) 5005 delim = end; 5006 else 5007 *delim = '\0'; 5008 5009 rid = (uid_t)strtol(curr, &endch, 0); 5010 if (opts->user) { 5011 who_type = ZFS_DELEG_USER; 5012 if (*endch != '\0') 5013 p = getpwnam(curr); 5014 else 5015 p = getpwuid(rid); 5016 5017 if (p != NULL) 5018 rid = p->pw_uid; 5019 else { 5020 (void) snprintf(errbuf, 256, gettext( 5021 "invalid user %s"), curr); 5022 allow_usage(un, B_TRUE, errbuf); 5023 } 5024 } else if (opts->group) { 5025 who_type = ZFS_DELEG_GROUP; 5026 if (*endch != '\0') 5027 g = getgrnam(curr); 5028 else 5029 g = getgrgid(rid); 5030 5031 if (g != NULL) 5032 rid = g->gr_gid; 5033 else { 5034 (void) snprintf(errbuf, 256, gettext( 5035 "invalid group %s"), curr); 5036 allow_usage(un, B_TRUE, errbuf); 5037 } 5038 } else { 5039 if (*endch != '\0') { 5040 p = getpwnam(curr); 5041 } else { 5042 p = getpwuid(rid); 5043 } 5044 5045 if (p == NULL) 5046 if (*endch != '\0') { 5047 g = getgrnam(curr); 5048 } else { 5049 g = getgrgid(rid); 5050 } 5051 5052 if (p != NULL) { 5053 who_type = ZFS_DELEG_USER; 5054 rid = p->pw_uid; 5055 } else if (g != NULL) { 5056 who_type = ZFS_DELEG_GROUP; 5057 rid = g->gr_gid; 5058 } else { 5059 (void) snprintf(errbuf, 256, gettext( 5060 "invalid user/group %s"), curr); 5061 allow_usage(un, B_TRUE, errbuf); 5062 } 5063 } 5064 5065 (void) sprintf(id, "%u", rid); 5066 who = id; 5067 5068 store_allow_perm(who_type, opts->local, 5069 opts->descend, who, opts->perms, *nvlp); 5070 curr = delim + 1; 5071 } 5072 } 5073 5074 return (0); 5075 } 5076 5077 static void 5078 print_set_creat_perms(uu_avl_t *who_avl) 5079 { 5080 const char *sc_title[] = { 5081 gettext("Permission sets:\n"), 5082 gettext("Create time permissions:\n"), 5083 NULL 5084 }; 5085 const char **title_ptr = sc_title; 5086 who_perm_node_t *who_node = NULL; 5087 int prev_weight = -1; 5088 5089 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5090 who_node = uu_avl_next(who_avl, who_node)) { 5091 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5092 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5093 const char *who_name = who_node->who_perm.who_name; 5094 int weight = who_type2weight(who_type); 5095 boolean_t first = B_TRUE; 5096 deleg_perm_node_t *deleg_node; 5097 5098 if (prev_weight != weight) { 5099 (void) printf(*title_ptr++); 5100 prev_weight = weight; 5101 } 5102 5103 if (who_name == NULL || strnlen(who_name, 1) == 0) 5104 (void) printf("\t"); 5105 else 5106 (void) printf("\t%s ", who_name); 5107 5108 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5109 deleg_node = uu_avl_next(avl, deleg_node)) { 5110 if (first) { 5111 (void) printf("%s", 5112 deleg_node->dpn_perm.dp_name); 5113 first = B_FALSE; 5114 } else 5115 (void) printf(",%s", 5116 deleg_node->dpn_perm.dp_name); 5117 } 5118 5119 (void) printf("\n"); 5120 } 5121 } 5122 5123 static void inline 5124 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5125 const char *title) 5126 { 5127 who_perm_node_t *who_node = NULL; 5128 boolean_t prt_title = B_TRUE; 5129 uu_avl_walk_t *walk; 5130 5131 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5132 nomem(); 5133 5134 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5135 const char *who_name = who_node->who_perm.who_name; 5136 const char *nice_who_name = who_node->who_perm.who_ug_name; 5137 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5138 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5139 char delim = ' '; 5140 deleg_perm_node_t *deleg_node; 5141 boolean_t prt_who = B_TRUE; 5142 5143 for (deleg_node = uu_avl_first(avl); 5144 deleg_node != NULL; 5145 deleg_node = uu_avl_next(avl, deleg_node)) { 5146 if (local != deleg_node->dpn_perm.dp_local || 5147 descend != deleg_node->dpn_perm.dp_descend) 5148 continue; 5149 5150 if (prt_who) { 5151 const char *who = NULL; 5152 if (prt_title) { 5153 prt_title = B_FALSE; 5154 (void) printf(title); 5155 } 5156 5157 switch (who_type) { 5158 case ZFS_DELEG_USER_SETS: 5159 case ZFS_DELEG_USER: 5160 who = gettext("user"); 5161 if (nice_who_name) 5162 who_name = nice_who_name; 5163 break; 5164 case ZFS_DELEG_GROUP_SETS: 5165 case ZFS_DELEG_GROUP: 5166 who = gettext("group"); 5167 if (nice_who_name) 5168 who_name = nice_who_name; 5169 break; 5170 case ZFS_DELEG_EVERYONE_SETS: 5171 case ZFS_DELEG_EVERYONE: 5172 who = gettext("everyone"); 5173 who_name = NULL; 5174 } 5175 5176 prt_who = B_FALSE; 5177 if (who_name == NULL) 5178 (void) printf("\t%s", who); 5179 else 5180 (void) printf("\t%s %s", who, who_name); 5181 } 5182 5183 (void) printf("%c%s", delim, 5184 deleg_node->dpn_perm.dp_name); 5185 delim = ','; 5186 } 5187 5188 if (!prt_who) 5189 (void) printf("\n"); 5190 } 5191 5192 uu_avl_walk_end(walk); 5193 } 5194 5195 static void 5196 print_fs_perms(fs_perm_set_t *fspset) 5197 { 5198 fs_perm_node_t *node = NULL; 5199 char buf[MAXNAMELEN + 32]; 5200 const char *dsname = buf; 5201 5202 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5203 node = uu_list_next(fspset->fsps_list, node)) { 5204 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5205 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5206 int left = 0; 5207 5208 (void) snprintf(buf, sizeof (buf), 5209 gettext("---- Permissions on %s "), 5210 node->fspn_fsperm.fsp_name); 5211 (void) printf(dsname); 5212 left = 70 - strlen(buf); 5213 while (left-- > 0) 5214 (void) printf("-"); 5215 (void) printf("\n"); 5216 5217 print_set_creat_perms(sc_avl); 5218 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5219 gettext("Local permissions:\n")); 5220 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5221 gettext("Descendent permissions:\n")); 5222 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5223 gettext("Local+Descendent permissions:\n")); 5224 } 5225 } 5226 5227 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5228 5229 struct deleg_perms { 5230 boolean_t un; 5231 nvlist_t *nvl; 5232 }; 5233 5234 static int 5235 set_deleg_perms(zfs_handle_t *zhp, void *data) 5236 { 5237 struct deleg_perms *perms = (struct deleg_perms *)data; 5238 zfs_type_t zfs_type = zfs_get_type(zhp); 5239 5240 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5241 return (0); 5242 5243 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5244 } 5245 5246 static int 5247 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5248 { 5249 zfs_handle_t *zhp; 5250 nvlist_t *perm_nvl = NULL; 5251 nvlist_t *update_perm_nvl = NULL; 5252 int error = 1; 5253 int c; 5254 struct allow_opts opts = { 0 }; 5255 5256 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5257 5258 /* check opts */ 5259 while ((c = getopt(argc, argv, optstr)) != -1) { 5260 switch (c) { 5261 case 'l': 5262 opts.local = B_TRUE; 5263 break; 5264 case 'd': 5265 opts.descend = B_TRUE; 5266 break; 5267 case 'u': 5268 opts.user = B_TRUE; 5269 break; 5270 case 'g': 5271 opts.group = B_TRUE; 5272 break; 5273 case 'e': 5274 opts.everyone = B_TRUE; 5275 break; 5276 case 's': 5277 opts.set = B_TRUE; 5278 break; 5279 case 'c': 5280 opts.create = B_TRUE; 5281 break; 5282 case 'r': 5283 opts.recursive = B_TRUE; 5284 break; 5285 case ':': 5286 (void) fprintf(stderr, gettext("missing argument for " 5287 "'%c' option\n"), optopt); 5288 usage(B_FALSE); 5289 break; 5290 case 'h': 5291 opts.prt_usage = B_TRUE; 5292 break; 5293 case '?': 5294 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5295 optopt); 5296 usage(B_FALSE); 5297 } 5298 } 5299 5300 argc -= optind; 5301 argv += optind; 5302 5303 /* check arguments */ 5304 parse_allow_args(argc, argv, un, &opts); 5305 5306 /* try to open the dataset */ 5307 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5308 ZFS_TYPE_VOLUME)) == NULL) { 5309 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5310 opts.dataset); 5311 return (-1); 5312 } 5313 5314 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5315 goto cleanup2; 5316 5317 fs_perm_set_init(&fs_perm_set); 5318 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5319 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5320 goto cleanup1; 5321 } 5322 5323 if (opts.prt_perms) 5324 print_fs_perms(&fs_perm_set); 5325 else { 5326 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5327 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5328 goto cleanup0; 5329 5330 if (un && opts.recursive) { 5331 struct deleg_perms data = { un, update_perm_nvl }; 5332 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5333 &data) != 0) 5334 goto cleanup0; 5335 } 5336 } 5337 5338 error = 0; 5339 5340 cleanup0: 5341 nvlist_free(perm_nvl); 5342 if (update_perm_nvl != NULL) 5343 nvlist_free(update_perm_nvl); 5344 cleanup1: 5345 fs_perm_set_fini(&fs_perm_set); 5346 cleanup2: 5347 zfs_close(zhp); 5348 5349 return (error); 5350 } 5351 5352 static int 5353 zfs_do_allow(int argc, char **argv) 5354 { 5355 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5356 } 5357 5358 static int 5359 zfs_do_unallow(int argc, char **argv) 5360 { 5361 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5362 } 5363 5364 static int 5365 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5366 { 5367 int errors = 0; 5368 int i; 5369 const char *tag; 5370 boolean_t recursive = B_FALSE; 5371 const char *opts = holding ? "rt" : "r"; 5372 int c; 5373 5374 /* check options */ 5375 while ((c = getopt(argc, argv, opts)) != -1) { 5376 switch (c) { 5377 case 'r': 5378 recursive = B_TRUE; 5379 break; 5380 case '?': 5381 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5382 optopt); 5383 usage(B_FALSE); 5384 } 5385 } 5386 5387 argc -= optind; 5388 argv += optind; 5389 5390 /* check number of arguments */ 5391 if (argc < 2) 5392 usage(B_FALSE); 5393 5394 tag = argv[0]; 5395 --argc; 5396 ++argv; 5397 5398 if (holding && tag[0] == '.') { 5399 /* tags starting with '.' are reserved for libzfs */ 5400 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5401 usage(B_FALSE); 5402 } 5403 5404 for (i = 0; i < argc; ++i) { 5405 zfs_handle_t *zhp; 5406 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5407 const char *delim; 5408 char *path = argv[i]; 5409 5410 delim = strchr(path, '@'); 5411 if (delim == NULL) { 5412 (void) fprintf(stderr, 5413 gettext("'%s' is not a snapshot\n"), path); 5414 ++errors; 5415 continue; 5416 } 5417 (void) strncpy(parent, path, delim - path); 5418 parent[delim - path] = '\0'; 5419 5420 zhp = zfs_open(g_zfs, parent, 5421 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5422 if (zhp == NULL) { 5423 ++errors; 5424 continue; 5425 } 5426 if (holding) { 5427 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5428 ++errors; 5429 } else { 5430 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5431 ++errors; 5432 } 5433 zfs_close(zhp); 5434 } 5435 5436 return (errors != 0); 5437 } 5438 5439 /* 5440 * zfs hold [-r] [-t] <tag> <snap> ... 5441 * 5442 * -r Recursively hold 5443 * 5444 * Apply a user-hold with the given tag to the list of snapshots. 5445 */ 5446 static int 5447 zfs_do_hold(int argc, char **argv) 5448 { 5449 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5450 } 5451 5452 /* 5453 * zfs release [-r] <tag> <snap> ... 5454 * 5455 * -r Recursively release 5456 * 5457 * Release a user-hold with the given tag from the list of snapshots. 5458 */ 5459 static int 5460 zfs_do_release(int argc, char **argv) 5461 { 5462 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5463 } 5464 5465 typedef struct holds_cbdata { 5466 boolean_t cb_recursive; 5467 const char *cb_snapname; 5468 nvlist_t **cb_nvlp; 5469 size_t cb_max_namelen; 5470 size_t cb_max_taglen; 5471 } holds_cbdata_t; 5472 5473 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5474 #define DATETIME_BUF_LEN (32) 5475 /* 5476 * 5477 */ 5478 static void 5479 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5480 { 5481 int i; 5482 nvpair_t *nvp = NULL; 5483 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5484 const char *col; 5485 5486 if (!scripted) { 5487 for (i = 0; i < 3; i++) { 5488 col = gettext(hdr_cols[i]); 5489 if (i < 2) 5490 (void) printf("%-*s ", i ? tagwidth : nwidth, 5491 col); 5492 else 5493 (void) printf("%s\n", col); 5494 } 5495 } 5496 5497 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5498 char *zname = nvpair_name(nvp); 5499 nvlist_t *nvl2; 5500 nvpair_t *nvp2 = NULL; 5501 (void) nvpair_value_nvlist(nvp, &nvl2); 5502 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5503 char tsbuf[DATETIME_BUF_LEN]; 5504 char *tagname = nvpair_name(nvp2); 5505 uint64_t val = 0; 5506 time_t time; 5507 struct tm t; 5508 char sep = scripted ? '\t' : ' '; 5509 size_t sepnum = scripted ? 1 : 2; 5510 5511 (void) nvpair_value_uint64(nvp2, &val); 5512 time = (time_t)val; 5513 (void) localtime_r(&time, &t); 5514 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5515 gettext(STRFTIME_FMT_STR), &t); 5516 5517 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5518 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5519 } 5520 } 5521 } 5522 5523 /* 5524 * Generic callback function to list a dataset or snapshot. 5525 */ 5526 static int 5527 holds_callback(zfs_handle_t *zhp, void *data) 5528 { 5529 holds_cbdata_t *cbp = data; 5530 nvlist_t *top_nvl = *cbp->cb_nvlp; 5531 nvlist_t *nvl = NULL; 5532 nvpair_t *nvp = NULL; 5533 const char *zname = zfs_get_name(zhp); 5534 size_t znamelen = strlen(zname); 5535 5536 if (cbp->cb_recursive) { 5537 const char *snapname; 5538 char *delim = strchr(zname, '@'); 5539 if (delim == NULL) 5540 return (0); 5541 5542 snapname = delim + 1; 5543 if (strcmp(cbp->cb_snapname, snapname)) 5544 return (0); 5545 } 5546 5547 if (zfs_get_holds(zhp, &nvl) != 0) 5548 return (-1); 5549 5550 if (znamelen > cbp->cb_max_namelen) 5551 cbp->cb_max_namelen = znamelen; 5552 5553 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5554 const char *tag = nvpair_name(nvp); 5555 size_t taglen = strlen(tag); 5556 if (taglen > cbp->cb_max_taglen) 5557 cbp->cb_max_taglen = taglen; 5558 } 5559 5560 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5561 } 5562 5563 /* 5564 * zfs holds [-r] <snap> ... 5565 * 5566 * -r Recursively hold 5567 */ 5568 static int 5569 zfs_do_holds(int argc, char **argv) 5570 { 5571 int errors = 0; 5572 int c; 5573 int i; 5574 boolean_t scripted = B_FALSE; 5575 boolean_t recursive = B_FALSE; 5576 const char *opts = "rH"; 5577 nvlist_t *nvl; 5578 5579 int types = ZFS_TYPE_SNAPSHOT; 5580 holds_cbdata_t cb = { 0 }; 5581 5582 int limit = 0; 5583 int ret = 0; 5584 int flags = 0; 5585 5586 /* check options */ 5587 while ((c = getopt(argc, argv, opts)) != -1) { 5588 switch (c) { 5589 case 'r': 5590 recursive = B_TRUE; 5591 break; 5592 case 'H': 5593 scripted = B_TRUE; 5594 break; 5595 case '?': 5596 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5597 optopt); 5598 usage(B_FALSE); 5599 } 5600 } 5601 5602 if (recursive) { 5603 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5604 flags |= ZFS_ITER_RECURSE; 5605 } 5606 5607 argc -= optind; 5608 argv += optind; 5609 5610 /* check number of arguments */ 5611 if (argc < 1) 5612 usage(B_FALSE); 5613 5614 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5615 nomem(); 5616 5617 for (i = 0; i < argc; ++i) { 5618 char *snapshot = argv[i]; 5619 const char *delim; 5620 const char *snapname; 5621 5622 delim = strchr(snapshot, '@'); 5623 if (delim == NULL) { 5624 (void) fprintf(stderr, 5625 gettext("'%s' is not a snapshot\n"), snapshot); 5626 ++errors; 5627 continue; 5628 } 5629 snapname = delim + 1; 5630 if (recursive) 5631 snapshot[delim - snapshot] = '\0'; 5632 5633 cb.cb_recursive = recursive; 5634 cb.cb_snapname = snapname; 5635 cb.cb_nvlp = &nvl; 5636 5637 /* 5638 * 1. collect holds data, set format options 5639 */ 5640 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5641 holds_callback, &cb); 5642 if (ret != 0) 5643 ++errors; 5644 } 5645 5646 /* 5647 * 2. print holds data 5648 */ 5649 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5650 5651 if (nvlist_empty(nvl)) 5652 (void) printf(gettext("no datasets available\n")); 5653 5654 nvlist_free(nvl); 5655 5656 return (0 != errors); 5657 } 5658 5659 #define CHECK_SPINNER 30 5660 #define SPINNER_TIME 3 /* seconds */ 5661 #define MOUNT_TIME 5 /* seconds */ 5662 5663 static int 5664 get_one_dataset(zfs_handle_t *zhp, void *data) 5665 { 5666 static char *spin[] = { "-", "\\", "|", "/" }; 5667 static int spinval = 0; 5668 static int spincheck = 0; 5669 static time_t last_spin_time = (time_t)0; 5670 get_all_cb_t *cbp = data; 5671 zfs_type_t type = zfs_get_type(zhp); 5672 5673 if (cbp->cb_verbose) { 5674 if (--spincheck < 0) { 5675 time_t now = time(NULL); 5676 if (last_spin_time + SPINNER_TIME < now) { 5677 update_progress(spin[spinval++ % 4]); 5678 last_spin_time = now; 5679 } 5680 spincheck = CHECK_SPINNER; 5681 } 5682 } 5683 5684 /* 5685 * Interate over any nested datasets. 5686 */ 5687 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5688 zfs_close(zhp); 5689 return (1); 5690 } 5691 5692 /* 5693 * Skip any datasets whose type does not match. 5694 */ 5695 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5696 zfs_close(zhp); 5697 return (0); 5698 } 5699 libzfs_add_handle(cbp, zhp); 5700 assert(cbp->cb_used <= cbp->cb_alloc); 5701 5702 return (0); 5703 } 5704 5705 static void 5706 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5707 { 5708 get_all_cb_t cb = { 0 }; 5709 cb.cb_verbose = verbose; 5710 cb.cb_getone = get_one_dataset; 5711 5712 if (verbose) 5713 set_progress_header(gettext("Reading ZFS config")); 5714 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5715 5716 *dslist = cb.cb_handles; 5717 *count = cb.cb_used; 5718 5719 if (verbose) 5720 finish_progress(gettext("done.")); 5721 } 5722 5723 /* 5724 * Generic callback for sharing or mounting filesystems. Because the code is so 5725 * similar, we have a common function with an extra parameter to determine which 5726 * mode we are using. 5727 */ 5728 #define OP_SHARE 0x1 5729 #define OP_MOUNT 0x2 5730 5731 /* 5732 * Share or mount a dataset. 5733 */ 5734 static int 5735 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5736 boolean_t explicit, const char *options) 5737 { 5738 char mountpoint[ZFS_MAXPROPLEN]; 5739 char shareopts[ZFS_MAXPROPLEN]; 5740 char smbshareopts[ZFS_MAXPROPLEN]; 5741 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5742 struct mnttab mnt; 5743 uint64_t zoned, canmount; 5744 boolean_t shared_nfs, shared_smb; 5745 5746 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5747 5748 /* 5749 * Check to make sure we can mount/share this dataset. If we 5750 * are in the global zone and the filesystem is exported to a 5751 * local zone, or if we are in a local zone and the 5752 * filesystem is not exported, then it is an error. 5753 */ 5754 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5755 5756 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5757 if (!explicit) 5758 return (0); 5759 5760 (void) fprintf(stderr, gettext("cannot %s '%s': " 5761 "dataset is exported to a local zone\n"), cmdname, 5762 zfs_get_name(zhp)); 5763 return (1); 5764 5765 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5766 if (!explicit) 5767 return (0); 5768 5769 (void) fprintf(stderr, gettext("cannot %s '%s': " 5770 "permission denied\n"), cmdname, 5771 zfs_get_name(zhp)); 5772 return (1); 5773 } 5774 5775 /* 5776 * Ignore any filesystems which don't apply to us. This 5777 * includes those with a legacy mountpoint, or those with 5778 * legacy share options. 5779 */ 5780 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5781 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5782 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5783 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5784 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5785 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5786 5787 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5788 strcmp(smbshareopts, "off") == 0) { 5789 if (!explicit) 5790 return (0); 5791 5792 (void) fprintf(stderr, gettext("cannot share '%s': " 5793 "legacy share\n"), zfs_get_name(zhp)); 5794 (void) fprintf(stderr, gettext("use share(1M) to " 5795 "share this filesystem, or set " 5796 "sharenfs property on\n")); 5797 return (1); 5798 } 5799 5800 /* 5801 * We cannot share or mount legacy filesystems. If the 5802 * shareopts is non-legacy but the mountpoint is legacy, we 5803 * treat it as a legacy share. 5804 */ 5805 if (strcmp(mountpoint, "legacy") == 0) { 5806 if (!explicit) 5807 return (0); 5808 5809 (void) fprintf(stderr, gettext("cannot %s '%s': " 5810 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5811 (void) fprintf(stderr, gettext("use %s(1M) to " 5812 "%s this filesystem\n"), cmdname, cmdname); 5813 return (1); 5814 } 5815 5816 if (strcmp(mountpoint, "none") == 0) { 5817 if (!explicit) 5818 return (0); 5819 5820 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5821 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5822 return (1); 5823 } 5824 5825 /* 5826 * canmount explicit outcome 5827 * on no pass through 5828 * on yes pass through 5829 * off no return 0 5830 * off yes display error, return 1 5831 * noauto no return 0 5832 * noauto yes pass through 5833 */ 5834 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5835 if (canmount == ZFS_CANMOUNT_OFF) { 5836 if (!explicit) 5837 return (0); 5838 5839 (void) fprintf(stderr, gettext("cannot %s '%s': " 5840 "'canmount' property is set to 'off'\n"), cmdname, 5841 zfs_get_name(zhp)); 5842 return (1); 5843 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5844 return (0); 5845 } 5846 5847 /* 5848 * If this filesystem is inconsistent and has a receive resume 5849 * token, we can not mount it. 5850 */ 5851 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5852 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5853 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5854 if (!explicit) 5855 return (0); 5856 5857 (void) fprintf(stderr, gettext("cannot %s '%s': " 5858 "Contains partially-completed state from " 5859 "\"zfs receive -r\", which can be resumed with " 5860 "\"zfs send -t\"\n"), 5861 cmdname, zfs_get_name(zhp)); 5862 return (1); 5863 } 5864 5865 /* 5866 * At this point, we have verified that the mountpoint and/or 5867 * shareopts are appropriate for auto management. If the 5868 * filesystem is already mounted or shared, return (failing 5869 * for explicit requests); otherwise mount or share the 5870 * filesystem. 5871 */ 5872 switch (op) { 5873 case OP_SHARE: 5874 5875 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5876 shared_smb = zfs_is_shared_smb(zhp, NULL); 5877 5878 if (shared_nfs && shared_smb || 5879 (shared_nfs && strcmp(shareopts, "on") == 0 && 5880 strcmp(smbshareopts, "off") == 0) || 5881 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5882 strcmp(shareopts, "off") == 0)) { 5883 if (!explicit) 5884 return (0); 5885 5886 (void) fprintf(stderr, gettext("cannot share " 5887 "'%s': filesystem already shared\n"), 5888 zfs_get_name(zhp)); 5889 return (1); 5890 } 5891 5892 if (!zfs_is_mounted(zhp, NULL) && 5893 zfs_mount(zhp, NULL, 0) != 0) 5894 return (1); 5895 5896 if (protocol == NULL) { 5897 if (zfs_shareall(zhp) != 0) 5898 return (1); 5899 } else if (strcmp(protocol, "nfs") == 0) { 5900 if (zfs_share_nfs(zhp)) 5901 return (1); 5902 } else if (strcmp(protocol, "smb") == 0) { 5903 if (zfs_share_smb(zhp)) 5904 return (1); 5905 } else { 5906 (void) fprintf(stderr, gettext("cannot share " 5907 "'%s': invalid share type '%s' " 5908 "specified\n"), 5909 zfs_get_name(zhp), protocol); 5910 return (1); 5911 } 5912 5913 break; 5914 5915 case OP_MOUNT: 5916 if (options == NULL) 5917 mnt.mnt_mntopts = ""; 5918 else 5919 mnt.mnt_mntopts = (char *)options; 5920 5921 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5922 zfs_is_mounted(zhp, NULL)) { 5923 if (!explicit) 5924 return (0); 5925 5926 (void) fprintf(stderr, gettext("cannot mount " 5927 "'%s': filesystem already mounted\n"), 5928 zfs_get_name(zhp)); 5929 return (1); 5930 } 5931 5932 if (zfs_mount(zhp, options, flags) != 0) 5933 return (1); 5934 break; 5935 } 5936 5937 return (0); 5938 } 5939 5940 /* 5941 * Reports progress in the form "(current/total)". Not thread-safe. 5942 */ 5943 static void 5944 report_mount_progress(int current, int total) 5945 { 5946 static time_t last_progress_time = 0; 5947 time_t now = time(NULL); 5948 char info[32]; 5949 5950 /* report 1..n instead of 0..n-1 */ 5951 ++current; 5952 5953 /* display header if we're here for the first time */ 5954 if (current == 1) { 5955 set_progress_header(gettext("Mounting ZFS filesystems")); 5956 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5957 /* too soon to report again */ 5958 return; 5959 } 5960 5961 last_progress_time = now; 5962 5963 (void) sprintf(info, "(%d/%d)", current, total); 5964 5965 if (current == total) 5966 finish_progress(info); 5967 else 5968 update_progress(info); 5969 } 5970 5971 static void 5972 append_options(char *mntopts, char *newopts) 5973 { 5974 int len = strlen(mntopts); 5975 5976 /* original length plus new string to append plus 1 for the comma */ 5977 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5978 (void) fprintf(stderr, gettext("the opts argument for " 5979 "'%c' option is too long (more than %d chars)\n"), 5980 "-o", MNT_LINE_MAX); 5981 usage(B_FALSE); 5982 } 5983 5984 if (*mntopts) 5985 mntopts[len++] = ','; 5986 5987 (void) strcpy(&mntopts[len], newopts); 5988 } 5989 5990 static int 5991 share_mount(int op, int argc, char **argv) 5992 { 5993 int do_all = 0; 5994 boolean_t verbose = B_FALSE; 5995 int c, ret = 0; 5996 char *options = NULL; 5997 int flags = 0; 5998 5999 /* check options */ 6000 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6001 != -1) { 6002 switch (c) { 6003 case 'a': 6004 do_all = 1; 6005 break; 6006 case 'v': 6007 verbose = B_TRUE; 6008 break; 6009 case 'o': 6010 if (*optarg == '\0') { 6011 (void) fprintf(stderr, gettext("empty mount " 6012 "options (-o) specified\n")); 6013 usage(B_FALSE); 6014 } 6015 6016 if (options == NULL) 6017 options = safe_malloc(MNT_LINE_MAX + 1); 6018 6019 /* option validation is done later */ 6020 append_options(options, optarg); 6021 break; 6022 6023 case 'O': 6024 flags |= MS_OVERLAY; 6025 break; 6026 case ':': 6027 (void) fprintf(stderr, gettext("missing argument for " 6028 "'%c' option\n"), optopt); 6029 usage(B_FALSE); 6030 break; 6031 case '?': 6032 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6033 optopt); 6034 usage(B_FALSE); 6035 } 6036 } 6037 6038 argc -= optind; 6039 argv += optind; 6040 6041 /* check number of arguments */ 6042 if (do_all) { 6043 zfs_handle_t **dslist = NULL; 6044 size_t i, count = 0; 6045 char *protocol = NULL; 6046 6047 if (op == OP_SHARE && argc > 0) { 6048 if (strcmp(argv[0], "nfs") != 0 && 6049 strcmp(argv[0], "smb") != 0) { 6050 (void) fprintf(stderr, gettext("share type " 6051 "must be 'nfs' or 'smb'\n")); 6052 usage(B_FALSE); 6053 } 6054 protocol = argv[0]; 6055 argc--; 6056 argv++; 6057 } 6058 6059 if (argc != 0) { 6060 (void) fprintf(stderr, gettext("too many arguments\n")); 6061 usage(B_FALSE); 6062 } 6063 6064 start_progress_timer(); 6065 get_all_datasets(&dslist, &count, verbose); 6066 6067 if (count == 0) 6068 return (0); 6069 6070 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6071 6072 for (i = 0; i < count; i++) { 6073 if (verbose) 6074 report_mount_progress(i, count); 6075 6076 if (share_mount_one(dslist[i], op, flags, protocol, 6077 B_FALSE, options) != 0) 6078 ret = 1; 6079 zfs_close(dslist[i]); 6080 } 6081 6082 free(dslist); 6083 } else if (argc == 0) { 6084 struct mnttab entry; 6085 6086 if ((op == OP_SHARE) || (options != NULL)) { 6087 (void) fprintf(stderr, gettext("missing filesystem " 6088 "argument (specify -a for all)\n")); 6089 usage(B_FALSE); 6090 } 6091 6092 /* 6093 * When mount is given no arguments, go through /etc/mnttab and 6094 * display any active ZFS mounts. We hide any snapshots, since 6095 * they are controlled automatically. 6096 */ 6097 rewind(mnttab_file); 6098 while (getmntent(mnttab_file, &entry) == 0) { 6099 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6100 strchr(entry.mnt_special, '@') != NULL) 6101 continue; 6102 6103 (void) printf("%-30s %s\n", entry.mnt_special, 6104 entry.mnt_mountp); 6105 } 6106 6107 } else { 6108 zfs_handle_t *zhp; 6109 6110 if (argc > 1) { 6111 (void) fprintf(stderr, 6112 gettext("too many arguments\n")); 6113 usage(B_FALSE); 6114 } 6115 6116 if ((zhp = zfs_open(g_zfs, argv[0], 6117 ZFS_TYPE_FILESYSTEM)) == NULL) { 6118 ret = 1; 6119 } else { 6120 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6121 options); 6122 zfs_close(zhp); 6123 } 6124 } 6125 6126 return (ret); 6127 } 6128 6129 /* 6130 * zfs mount -a [nfs] 6131 * zfs mount filesystem 6132 * 6133 * Mount all filesystems, or mount the given filesystem. 6134 */ 6135 static int 6136 zfs_do_mount(int argc, char **argv) 6137 { 6138 return (share_mount(OP_MOUNT, argc, argv)); 6139 } 6140 6141 /* 6142 * zfs share -a [nfs | smb] 6143 * zfs share filesystem 6144 * 6145 * Share all filesystems, or share the given filesystem. 6146 */ 6147 static int 6148 zfs_do_share(int argc, char **argv) 6149 { 6150 return (share_mount(OP_SHARE, argc, argv)); 6151 } 6152 6153 typedef struct unshare_unmount_node { 6154 zfs_handle_t *un_zhp; 6155 char *un_mountp; 6156 uu_avl_node_t un_avlnode; 6157 } unshare_unmount_node_t; 6158 6159 /* ARGSUSED */ 6160 static int 6161 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6162 { 6163 const unshare_unmount_node_t *l = larg; 6164 const unshare_unmount_node_t *r = rarg; 6165 6166 return (strcmp(l->un_mountp, r->un_mountp)); 6167 } 6168 6169 /* 6170 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6171 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6172 * and unmount it appropriately. 6173 */ 6174 static int 6175 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6176 { 6177 zfs_handle_t *zhp; 6178 int ret = 0; 6179 struct stat64 statbuf; 6180 struct extmnttab entry; 6181 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6182 ino_t path_inode; 6183 6184 /* 6185 * Search for the path in /etc/mnttab. Rather than looking for the 6186 * specific path, which can be fooled by non-standard paths (i.e. ".." 6187 * or "//"), we stat() the path and search for the corresponding 6188 * (major,minor) device pair. 6189 */ 6190 if (stat64(path, &statbuf) != 0) { 6191 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6192 cmdname, path, strerror(errno)); 6193 return (1); 6194 } 6195 path_inode = statbuf.st_ino; 6196 6197 /* 6198 * Search for the given (major,minor) pair in the mount table. 6199 */ 6200 rewind(mnttab_file); 6201 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6202 if (entry.mnt_major == major(statbuf.st_dev) && 6203 entry.mnt_minor == minor(statbuf.st_dev)) 6204 break; 6205 } 6206 if (ret != 0) { 6207 if (op == OP_SHARE) { 6208 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6209 "currently mounted\n"), cmdname, path); 6210 return (1); 6211 } 6212 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6213 path); 6214 if ((ret = umount2(path, flags)) != 0) 6215 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6216 strerror(errno)); 6217 return (ret != 0); 6218 } 6219 6220 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6221 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6222 "filesystem\n"), cmdname, path); 6223 return (1); 6224 } 6225 6226 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6227 ZFS_TYPE_FILESYSTEM)) == NULL) 6228 return (1); 6229 6230 ret = 1; 6231 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6232 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6233 cmdname, path, strerror(errno)); 6234 goto out; 6235 } else if (statbuf.st_ino != path_inode) { 6236 (void) fprintf(stderr, gettext("cannot " 6237 "%s '%s': not a mountpoint\n"), cmdname, path); 6238 goto out; 6239 } 6240 6241 if (op == OP_SHARE) { 6242 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6243 char smbshare_prop[ZFS_MAXPROPLEN]; 6244 6245 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6246 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6247 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6248 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6249 6250 if (strcmp(nfs_mnt_prop, "off") == 0 && 6251 strcmp(smbshare_prop, "off") == 0) { 6252 (void) fprintf(stderr, gettext("cannot unshare " 6253 "'%s': legacy share\n"), path); 6254 (void) fprintf(stderr, gettext("use " 6255 "unshare(1M) to unshare this filesystem\n")); 6256 } else if (!zfs_is_shared(zhp)) { 6257 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6258 "not currently shared\n"), path); 6259 } else { 6260 ret = zfs_unshareall_bypath(zhp, path); 6261 } 6262 } else { 6263 char mtpt_prop[ZFS_MAXPROPLEN]; 6264 6265 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6266 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6267 6268 if (is_manual) { 6269 ret = zfs_unmount(zhp, NULL, flags); 6270 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6271 (void) fprintf(stderr, gettext("cannot unmount " 6272 "'%s': legacy mountpoint\n"), 6273 zfs_get_name(zhp)); 6274 (void) fprintf(stderr, gettext("use umount(1M) " 6275 "to unmount this filesystem\n")); 6276 } else { 6277 ret = zfs_unmountall(zhp, flags); 6278 } 6279 } 6280 6281 out: 6282 zfs_close(zhp); 6283 6284 return (ret != 0); 6285 } 6286 6287 /* 6288 * Generic callback for unsharing or unmounting a filesystem. 6289 */ 6290 static int 6291 unshare_unmount(int op, int argc, char **argv) 6292 { 6293 int do_all = 0; 6294 int flags = 0; 6295 int ret = 0; 6296 int c; 6297 zfs_handle_t *zhp; 6298 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6299 char sharesmb[ZFS_MAXPROPLEN]; 6300 6301 /* check options */ 6302 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6303 switch (c) { 6304 case 'a': 6305 do_all = 1; 6306 break; 6307 case 'f': 6308 flags = MS_FORCE; 6309 break; 6310 case '?': 6311 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6312 optopt); 6313 usage(B_FALSE); 6314 } 6315 } 6316 6317 argc -= optind; 6318 argv += optind; 6319 6320 if (do_all) { 6321 /* 6322 * We could make use of zfs_for_each() to walk all datasets in 6323 * the system, but this would be very inefficient, especially 6324 * since we would have to linearly search /etc/mnttab for each 6325 * one. Instead, do one pass through /etc/mnttab looking for 6326 * zfs entries and call zfs_unmount() for each one. 6327 * 6328 * Things get a little tricky if the administrator has created 6329 * mountpoints beneath other ZFS filesystems. In this case, we 6330 * have to unmount the deepest filesystems first. To accomplish 6331 * this, we place all the mountpoints in an AVL tree sorted by 6332 * the special type (dataset name), and walk the result in 6333 * reverse to make sure to get any snapshots first. 6334 */ 6335 struct mnttab entry; 6336 uu_avl_pool_t *pool; 6337 uu_avl_t *tree; 6338 unshare_unmount_node_t *node; 6339 uu_avl_index_t idx; 6340 uu_avl_walk_t *walk; 6341 6342 if (argc != 0) { 6343 (void) fprintf(stderr, gettext("too many arguments\n")); 6344 usage(B_FALSE); 6345 } 6346 6347 if (((pool = uu_avl_pool_create("unmount_pool", 6348 sizeof (unshare_unmount_node_t), 6349 offsetof(unshare_unmount_node_t, un_avlnode), 6350 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6351 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6352 nomem(); 6353 6354 rewind(mnttab_file); 6355 while (getmntent(mnttab_file, &entry) == 0) { 6356 6357 /* ignore non-ZFS entries */ 6358 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6359 continue; 6360 6361 /* ignore snapshots */ 6362 if (strchr(entry.mnt_special, '@') != NULL) 6363 continue; 6364 6365 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6366 ZFS_TYPE_FILESYSTEM)) == NULL) { 6367 ret = 1; 6368 continue; 6369 } 6370 6371 switch (op) { 6372 case OP_SHARE: 6373 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6374 nfs_mnt_prop, 6375 sizeof (nfs_mnt_prop), 6376 NULL, NULL, 0, B_FALSE) == 0); 6377 if (strcmp(nfs_mnt_prop, "off") != 0) 6378 break; 6379 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6380 nfs_mnt_prop, 6381 sizeof (nfs_mnt_prop), 6382 NULL, NULL, 0, B_FALSE) == 0); 6383 if (strcmp(nfs_mnt_prop, "off") == 0) 6384 continue; 6385 break; 6386 case OP_MOUNT: 6387 /* Ignore legacy mounts */ 6388 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6389 nfs_mnt_prop, 6390 sizeof (nfs_mnt_prop), 6391 NULL, NULL, 0, B_FALSE) == 0); 6392 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6393 continue; 6394 /* Ignore canmount=noauto mounts */ 6395 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6396 ZFS_CANMOUNT_NOAUTO) 6397 continue; 6398 default: 6399 break; 6400 } 6401 6402 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6403 node->un_zhp = zhp; 6404 node->un_mountp = safe_strdup(entry.mnt_mountp); 6405 6406 uu_avl_node_init(node, &node->un_avlnode, pool); 6407 6408 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6409 uu_avl_insert(tree, node, idx); 6410 } else { 6411 zfs_close(node->un_zhp); 6412 free(node->un_mountp); 6413 free(node); 6414 } 6415 } 6416 6417 /* 6418 * Walk the AVL tree in reverse, unmounting each filesystem and 6419 * removing it from the AVL tree in the process. 6420 */ 6421 if ((walk = uu_avl_walk_start(tree, 6422 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6423 nomem(); 6424 6425 while ((node = uu_avl_walk_next(walk)) != NULL) { 6426 uu_avl_remove(tree, node); 6427 6428 switch (op) { 6429 case OP_SHARE: 6430 if (zfs_unshareall_bypath(node->un_zhp, 6431 node->un_mountp) != 0) 6432 ret = 1; 6433 break; 6434 6435 case OP_MOUNT: 6436 if (zfs_unmount(node->un_zhp, 6437 node->un_mountp, flags) != 0) 6438 ret = 1; 6439 break; 6440 } 6441 6442 zfs_close(node->un_zhp); 6443 free(node->un_mountp); 6444 free(node); 6445 } 6446 6447 uu_avl_walk_end(walk); 6448 uu_avl_destroy(tree); 6449 uu_avl_pool_destroy(pool); 6450 6451 } else { 6452 if (argc != 1) { 6453 if (argc == 0) 6454 (void) fprintf(stderr, 6455 gettext("missing filesystem argument\n")); 6456 else 6457 (void) fprintf(stderr, 6458 gettext("too many arguments\n")); 6459 usage(B_FALSE); 6460 } 6461 6462 /* 6463 * We have an argument, but it may be a full path or a ZFS 6464 * filesystem. Pass full paths off to unmount_path() (shared by 6465 * manual_unmount), otherwise open the filesystem and pass to 6466 * zfs_unmount(). 6467 */ 6468 if (argv[0][0] == '/') 6469 return (unshare_unmount_path(op, argv[0], 6470 flags, B_FALSE)); 6471 6472 if ((zhp = zfs_open(g_zfs, argv[0], 6473 ZFS_TYPE_FILESYSTEM)) == NULL) 6474 return (1); 6475 6476 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6477 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6478 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6479 NULL, 0, B_FALSE) == 0); 6480 6481 switch (op) { 6482 case OP_SHARE: 6483 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6484 nfs_mnt_prop, 6485 sizeof (nfs_mnt_prop), 6486 NULL, NULL, 0, B_FALSE) == 0); 6487 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6488 sharesmb, sizeof (sharesmb), NULL, NULL, 6489 0, B_FALSE) == 0); 6490 6491 if (strcmp(nfs_mnt_prop, "off") == 0 && 6492 strcmp(sharesmb, "off") == 0) { 6493 (void) fprintf(stderr, gettext("cannot " 6494 "unshare '%s': legacy share\n"), 6495 zfs_get_name(zhp)); 6496 (void) fprintf(stderr, gettext("use " 6497 "unshare(1M) to unshare this " 6498 "filesystem\n")); 6499 ret = 1; 6500 } else if (!zfs_is_shared(zhp)) { 6501 (void) fprintf(stderr, gettext("cannot " 6502 "unshare '%s': not currently " 6503 "shared\n"), zfs_get_name(zhp)); 6504 ret = 1; 6505 } else if (zfs_unshareall(zhp) != 0) { 6506 ret = 1; 6507 } 6508 break; 6509 6510 case OP_MOUNT: 6511 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6512 (void) fprintf(stderr, gettext("cannot " 6513 "unmount '%s': legacy " 6514 "mountpoint\n"), zfs_get_name(zhp)); 6515 (void) fprintf(stderr, gettext("use " 6516 "umount(1M) to unmount this " 6517 "filesystem\n")); 6518 ret = 1; 6519 } else if (!zfs_is_mounted(zhp, NULL)) { 6520 (void) fprintf(stderr, gettext("cannot " 6521 "unmount '%s': not currently " 6522 "mounted\n"), 6523 zfs_get_name(zhp)); 6524 ret = 1; 6525 } else if (zfs_unmountall(zhp, flags) != 0) { 6526 ret = 1; 6527 } 6528 break; 6529 } 6530 6531 zfs_close(zhp); 6532 } 6533 6534 return (ret); 6535 } 6536 6537 /* 6538 * zfs unmount -a 6539 * zfs unmount filesystem 6540 * 6541 * Unmount all filesystems, or a specific ZFS filesystem. 6542 */ 6543 static int 6544 zfs_do_unmount(int argc, char **argv) 6545 { 6546 return (unshare_unmount(OP_MOUNT, argc, argv)); 6547 } 6548 6549 /* 6550 * zfs unshare -a 6551 * zfs unshare filesystem 6552 * 6553 * Unshare all filesystems, or a specific ZFS filesystem. 6554 */ 6555 static int 6556 zfs_do_unshare(int argc, char **argv) 6557 { 6558 return (unshare_unmount(OP_SHARE, argc, argv)); 6559 } 6560 6561 /* 6562 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6563 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6564 */ 6565 static int 6566 manual_mount(int argc, char **argv) 6567 { 6568 zfs_handle_t *zhp; 6569 char mountpoint[ZFS_MAXPROPLEN]; 6570 char mntopts[MNT_LINE_MAX] = { '\0' }; 6571 int ret = 0; 6572 int c; 6573 int flags = 0; 6574 char *dataset, *path; 6575 6576 /* check options */ 6577 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6578 switch (c) { 6579 case 'o': 6580 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6581 break; 6582 case 'O': 6583 flags |= MS_OVERLAY; 6584 break; 6585 case 'm': 6586 flags |= MS_NOMNTTAB; 6587 break; 6588 case ':': 6589 (void) fprintf(stderr, gettext("missing argument for " 6590 "'%c' option\n"), optopt); 6591 usage(B_FALSE); 6592 break; 6593 case '?': 6594 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6595 optopt); 6596 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6597 "<path>\n")); 6598 return (2); 6599 } 6600 } 6601 6602 argc -= optind; 6603 argv += optind; 6604 6605 /* check that we only have two arguments */ 6606 if (argc != 2) { 6607 if (argc == 0) 6608 (void) fprintf(stderr, gettext("missing dataset " 6609 "argument\n")); 6610 else if (argc == 1) 6611 (void) fprintf(stderr, 6612 gettext("missing mountpoint argument\n")); 6613 else 6614 (void) fprintf(stderr, gettext("too many arguments\n")); 6615 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6616 return (2); 6617 } 6618 6619 dataset = argv[0]; 6620 path = argv[1]; 6621 6622 /* try to open the dataset */ 6623 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6624 return (1); 6625 6626 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6627 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6628 6629 /* check for legacy mountpoint and complain appropriately */ 6630 ret = 0; 6631 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6632 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6633 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6634 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6635 strerror(errno)); 6636 ret = 1; 6637 } 6638 } else { 6639 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6640 "mounted using 'mount -F zfs'\n"), dataset); 6641 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6642 "instead.\n"), path); 6643 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6644 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6645 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6646 "information.\n")); 6647 ret = 1; 6648 } 6649 6650 return (ret); 6651 } 6652 6653 /* 6654 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6655 * unmounts of non-legacy filesystems, as this is the dominant administrative 6656 * interface. 6657 */ 6658 static int 6659 manual_unmount(int argc, char **argv) 6660 { 6661 int flags = 0; 6662 int c; 6663 6664 /* check options */ 6665 while ((c = getopt(argc, argv, "f")) != -1) { 6666 switch (c) { 6667 case 'f': 6668 flags = MS_FORCE; 6669 break; 6670 case '?': 6671 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6672 optopt); 6673 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6674 "<path>\n")); 6675 return (2); 6676 } 6677 } 6678 6679 argc -= optind; 6680 argv += optind; 6681 6682 /* check arguments */ 6683 if (argc != 1) { 6684 if (argc == 0) 6685 (void) fprintf(stderr, gettext("missing path " 6686 "argument\n")); 6687 else 6688 (void) fprintf(stderr, gettext("too many arguments\n")); 6689 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6690 return (2); 6691 } 6692 6693 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6694 } 6695 6696 static int 6697 find_command_idx(char *command, int *idx) 6698 { 6699 int i; 6700 6701 for (i = 0; i < NCOMMAND; i++) { 6702 if (command_table[i].name == NULL) 6703 continue; 6704 6705 if (strcmp(command, command_table[i].name) == 0) { 6706 *idx = i; 6707 return (0); 6708 } 6709 } 6710 return (1); 6711 } 6712 6713 static inline char * 6714 get_rid_fs(const char *rid) 6715 { 6716 FILE *pool_file = NULL; 6717 char *fs = malloc(256); 6718 char *pool = fs; 6719 size_t len; 6720 int rid_len; 6721 6722 assert(fs); 6723 6724 if (!rid) { 6725 fprintf(stderr, "rzfs: no rid given for -r\n"); 6726 exit(1); 6727 } 6728 6729 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6730 fprintf(stderr, "rzfs: get_rid_fs: fopen for %s failed: %s\n", 6731 STG_POOL_FILE, strerror(errno)); 6732 exit(1); 6733 } 6734 6735 len = fread(pool, sizeof(char), 256, pool_file); 6736 if (len != POOL_NAME_LEN + 1) { 6737 fprintf(stderr, "rzfs: get_rid_fs: malformed pool in %s " 6738 "(len=%d)\n", STG_POOL_FILE, (int)len); 6739 exit(1); 6740 } 6741 fs[POOL_NAME_LEN] = 0; 6742 6743 rid_len = strlen(rid); 6744 sprintf(fs, "%s/%c%c/%s_root", pool, rid[rid_len - 2], 6745 rid[rid_len - 1], rid); 6746 fclose(pool_file); 6747 return fs; 6748 } 6749 6750 /* path: /mnt/abc.n/99/599999 */ 6751 static char * 6752 get_space_path(const char *rid) 6753 { 6754 FILE *pool_file = NULL; 6755 char *path = malloc(PATH_MAX + 1); 6756 char pool[POOL_NAME_LEN + 1]; 6757 size_t len; 6758 int rid_len; 6759 6760 assert(path); 6761 6762 if (!rid) { 6763 fprintf(stderr, "xlist: no rid given for -r\n"); 6764 exit(1); 6765 } 6766 if (strlen(rid) < 8) { 6767 fprintf(stderr, "invalid rid\n"); 6768 exit(1); 6769 } 6770 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6771 fprintf(stderr, "xlist: get_space_path: fopen for %s failed: " 6772 "%s\n", STG_POOL_FILE, strerror(errno)); 6773 exit(1); 6774 } 6775 len = fread(pool, sizeof(char), POOL_NAME_LEN + 1, pool_file); 6776 if (len != POOL_NAME_LEN + 1) { 6777 fprintf(stderr, "xlist: get_space_path: malformed pool in %s " 6778 "(len=%d)\n", STG_POOL_FILE, (int)len); 6779 exit(1); 6780 } 6781 pool[POOL_NAME_LEN] = 0; 6782 6783 rid_len = strlen(rid); 6784 sprintf(path, "/mnt/%s/%c%c/%s", pool, rid[rid_len - 2], 6785 rid[rid_len - 1], rid); 6786 6787 fclose(pool_file); 6788 return path; 6789 } 6790 6791 int 6792 xlist(zfs_handle_t *zfh, void *ctx) 6793 { 6794 int ret; 6795 6796 if (zfs_get_type(zfh) & dataset_type) 6797 printf("%s\n", zfs_get_name(zfh)); 6798 6799 if (zfs_get_type(zfh) != ZFS_TYPE_FILESYSTEM) { 6800 zfs_close(zfh); 6801 return (0); 6802 } 6803 6804 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 6805 ret = zfs_iter_snapshots(zfh, xlist, ctx); 6806 if (ret) { 6807 fprintf(stderr, "xlist failed for %s: %s\n", 6808 zfs_get_name(zfh), 6809 libzfs_error_description(g_zfs)); 6810 exit(1); 6811 } 6812 } 6813 6814 if (dataset_type & ZFS_TYPE_BOOKMARK) { 6815 ret = zfs_iter_bookmarks(zfh, xlist, ctx); 6816 if (ret) { 6817 fprintf(stderr, "xlist failed for %s: %s\n", 6818 zfs_get_name(zfh), 6819 libzfs_error_description(g_zfs)); 6820 exit(1); 6821 } 6822 } 6823 6824 ret = zfs_iter_filesystems(zfh, xlist, ctx); 6825 if (ret) { 6826 fprintf(stderr, "xlist failed for %s: %s\n", zfs_get_name(zfh), 6827 libzfs_error_description(g_zfs)); 6828 exit(1); 6829 } 6830 6831 zfs_close(zfh); 6832 return (0); 6833 } 6834 6835 static int 6836 zfs_do_xlist(int argc, char **argv) 6837 { 6838 char *rootfs = NULL; 6839 char *path = NULL; 6840 dataset_type = ZFS_TYPE_FILESYSTEM; 6841 char c; 6842 6843 while ((c = getopt(argc, argv, "habsS:r:v")) != -1) { 6844 switch (c) { 6845 case 'h': /* help */ 6846 usage(B_TRUE); 6847 return 1; 6848 case 'a': /* print fs and snapshots */ 6849 dataset_type |= ZFS_TYPE_SNAPSHOT | ZFS_TYPE_BOOKMARK; 6850 break; 6851 case 'b': /* print bookmarks only */ 6852 dataset_type = ZFS_TYPE_BOOKMARK; 6853 break; 6854 case 'r': /* rid */ 6855 rootfs = get_rid_fs(optarg); 6856 break; 6857 case 's': /* print snapshots only */ 6858 dataset_type = ZFS_TYPE_SNAPSHOT; 6859 break; 6860 case 'S': 6861 path = get_space_path(optarg); 6862 printf("%s\n", path); 6863 exit(0); 6864 case 'v': 6865 fprintf(stderr, "xlist version %s\n", XVERSION); 6866 exit(0); 6867 default: 6868 (void) fprintf(stderr, 6869 gettext("invalid option '%c'\n"), optopt); 6870 usage(B_FALSE); 6871 } 6872 } 6873 6874 argc -= optind; 6875 argv += optind; 6876 6877 if (!rootfs) 6878 rootfs = *argv; 6879 6880 if (rootfs == NULL) { 6881 return zfs_iter_root(g_zfs, xlist, NULL); 6882 } else { 6883 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 6884 ZFS_TYPE_FILESYSTEM); 6885 if (!zfsh) { 6886 fprintf(stderr, "zfs_open failed for %s\n", 6887 rootfs); 6888 exit(1); 6889 } 6890 return xlist(zfsh, NULL); 6891 } 6892 } 6893 6894 static zprop_source_t 6895 get_property_source(zfs_handle_t *zfh, nvpair_t *prop) 6896 { 6897 data_type_t nvtype; 6898 nvlist_t *userprop; 6899 int ret; 6900 const char *fsname = zfs_get_name(zfh); 6901 char *source; 6902 zprop_source_t zret = ZPROP_SRC_NONE; 6903 6904 nvtype = nvpair_type(prop); 6905 assert(nvtype == DATA_TYPE_NVLIST); 6906 ret = nvpair_value_nvlist(prop, &userprop); 6907 assert(!ret); 6908 ret = nvlist_lookup_string(userprop, "source", &source); 6909 assert(!ret); 6910 6911 if (strcmp(source, fsname) == 0) 6912 zret = ZPROP_SRC_LOCAL; 6913 else 6914 zret = ZPROP_SRC_INHERITED; 6915 return zret; 6916 } 6917 6918 int 6919 get_userprop(zfs_handle_t *zfh, 6920 nvpair_t *prop, 6921 char **name, 6922 char **value, 6923 zprop_source_t *src) 6924 { 6925 int ret; 6926 data_type_t nvtype; 6927 nvlist_t *userprop; 6928 const char *fsname = zfs_get_name(zfh); 6929 6930 assert(name); 6931 assert(value); 6932 6933 *name = strdup(nvpair_name(prop)); 6934 assert(*name != NULL); 6935 6936 nvtype = nvpair_type(prop); 6937 if (nvtype != DATA_TYPE_NVLIST) { 6938 fprintf(stderr, "xget: get_userprop: user property has " 6939 "unexpected data type: property '%s' in zfs '%s':" 6940 " %d\n", *name, fsname, nvtype); 6941 goto err_userprop; 6942 } 6943 ret = nvpair_value_nvlist(prop, &userprop); 6944 if (ret) { 6945 fprintf(stderr, "xget: get_userprop: nvlist lookup failed for " 6946 "property '%s' in zfs '%s': %s\n", 6947 *name, fsname, strerror(ret)); 6948 goto err_userprop; 6949 } 6950 6951 /* get property value */ 6952 ret = nvlist_lookup_string(userprop, "value", value); 6953 if (ret) { 6954 const char *reason = "unknown"; 6955 6956 /* reasons for EINVAL from nvlist_lookup_string() */ 6957 if (userprop == NULL) 6958 reason = "userprop is NULL"; 6959 else if (userprop->nvl_priv == NULL) 6960 reason = "userprop->nvl_priv is NULL"; 6961 else if (name == NULL) 6962 reason = "name or userprop is NULL"; 6963 6964 fprintf(stderr, "xget: get_userprop: property value lookup " 6965 "failed for property '%s' in zfs '%s': %s reason=%s\n", 6966 *name, fsname, strerror(ret), reason); 6967 goto err_userprop; 6968 } 6969 *value = strdup(*value); 6970 assert(value != NULL); 6971 6972 /* get source */ 6973 if (src) 6974 *src = get_property_source(zfh, prop); 6975 return 0; 6976 6977 err_userprop: 6978 free(*name); 6979 *name = NULL; 6980 *value = NULL; 6981 return 1; 6982 } 6983 6984 static void 6985 print_property(zfs_handle_t *zfh, const char *propname, char *propval, 6986 zprop_source_t src) 6987 { 6988 char *src_name = NULL; 6989 6990 switch ((int)src) { 6991 case ZPROP_SRC_NONE: 6992 src_name = "-"; 6993 break; 6994 case ZPROP_SRC_DEFAULT: 6995 src_name = "default"; 6996 break; 6997 case ZPROP_SRC_LOCAL: 6998 src_name = "local"; 6999 break; 7000 case ZPROP_SRC_TEMPORARY: 7001 src_name = "temporary"; 7002 break; 7003 case ZPROP_SRC_INHERITED: 7004 src_name = "inherited"; 7005 break; 7006 case ZPROP_SRC_RECEIVED: 7007 src_name = "received"; 7008 break; 7009 default: 7010 src_name = "unknown"; 7011 break; 7012 } 7013 printf("%s\t%s\t%s\t%s\n", zfs_get_name(zfh), propname, propval, 7014 src_name); 7015 } 7016 7017 /* system property */ 7018 int 7019 xget_print_system_props(int prop_id, void *data) 7020 { 7021 zfs_handle_t *zfh = (zfs_handle_t *)data; 7022 char srcbuf[ZFS_MAX_DATASET_NAME_LEN]; 7023 char buf[ZFS_MAXPROPLEN]; 7024 zprop_source_t src = NULL; 7025 int ret; 7026 7027 if (prop_id != ZPROP_INVAL) { 7028 ret = zfs_prop_get(zfh, prop_id, buf, sizeof(buf), 7029 &src, srcbuf, sizeof(srcbuf), B_TRUE); 7030 if (ret) { 7031 /* property not found */ 7032 print_property(zfh, zfs_prop_to_name(prop_id), "-", 7033 ZPROP_SRC_NONE); 7034 } else { 7035 print_property(zfh, zfs_prop_to_name(prop_id), buf, 7036 src); 7037 } 7038 return ZPROP_CONT; 7039 } 7040 return ZPROP_INVAL; 7041 } 7042 7043 void 7044 xget_print_user_props(zfs_handle_t *zfh, 7045 const char *propname, 7046 char **value, 7047 zprop_source_t src) 7048 { 7049 7050 nvlist_t *props; 7051 nvpair_t *prop = NULL; 7052 char *tvalue = NULL; 7053 char *name = NULL; 7054 const char *fsname = zfs_get_name(zfh); 7055 7056 /* user property */ 7057 props = zfs_get_user_props(zfh); 7058 while ((prop = nvlist_next_nvpair(props, prop))) { 7059 if (get_userprop(zfh, prop, &name, &tvalue, NULL)) { 7060 fprintf(stderr, "xget: get_property failed for %s\n", 7061 fsname); 7062 break; 7063 } 7064 if (strcmp(name, propname) == 0 || 7065 strcmp(propname, "all") == 0) { 7066 /* property found */ 7067 src = get_property_source(zfh, prop); 7068 print_property(zfh, name, tvalue, src); 7069 } 7070 free(name); 7071 free(tvalue); 7072 } 7073 } 7074 7075 int 7076 xget(zfs_handle_t *zfh, void *ctx) 7077 { 7078 const char *fsname = zfs_get_name(zfh); 7079 int ret; 7080 zprop_source_t src = ZPROP_SRC_NONE; 7081 7082 if (zfs_get_type(zfh) == ZFS_TYPE_FILESYSTEM) { 7083 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 7084 ret = zfs_iter_snapshots(zfh, xget, ctx); 7085 if (ret) { 7086 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7087 libzfs_error_description(g_zfs)); 7088 exit(1); 7089 } 7090 } 7091 7092 if (dataset_type & ZFS_TYPE_BOOKMARK) { 7093 ret = zfs_iter_bookmarks(zfh, xget, ctx); 7094 if (ret) { 7095 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7096 libzfs_error_description(g_zfs)); 7097 exit(1); 7098 } 7099 } 7100 7101 if (zfs_iter_filesystems(zfh, xget, ctx)) { 7102 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7103 libzfs_error_description(g_zfs)); 7104 exit(1); 7105 } 7106 } 7107 7108 if (!(zfs_get_type(zfh) & dataset_type)) { 7109 zfs_close(zfh); 7110 return 0; 7111 } 7112 7113 /* 7114 * print requested properties 7115 */ 7116 char delimeter[] = ","; 7117 char *propval = NULL; 7118 char *propnames = strdup((char *)ctx); 7119 assert(propnames != NULL); 7120 char *propname = strtok(propnames, delimeter); 7121 7122 while (propname != NULL) { 7123 if (strcmp(propname, "all") == 0) { 7124 zprop_iter(xget_print_system_props, zfh, 7125 B_FALSE, B_FALSE, zfs_get_type(zfh)); 7126 } else { 7127 xget_print_system_props(zfs_name_to_prop(propname), 7128 zfh); 7129 } 7130 xget_print_user_props(zfh, propname, &propval, src); 7131 propname = strtok(NULL, delimeter); 7132 } 7133 free(propnames); 7134 7135 zfs_close(zfh); 7136 return 0; 7137 } 7138 7139 static int 7140 zfs_do_xget(int argc, char **argv) 7141 { 7142 char *rootfs = NULL; 7143 char *path = NULL; 7144 dataset_type = ZFS_TYPE_FILESYSTEM; 7145 char *properties = "all"; 7146 char c; 7147 7148 while ((c = getopt(argc, argv, "habsS:r:p:v")) != -1) { 7149 switch (c) { 7150 case 'h': /* help */ 7151 usage(B_TRUE); 7152 return 1; 7153 case 'a': /* print fs and snapshots */ 7154 dataset_type |= ZFS_TYPE_SNAPSHOT | ZFS_TYPE_BOOKMARK; 7155 break; 7156 case 'b': /* print bookmarks only */ 7157 dataset_type = ZFS_TYPE_BOOKMARK; 7158 break; 7159 case 'r': /* rid */ 7160 rootfs = get_rid_fs(optarg); 7161 break; 7162 case 's': /* print snapshots only */ 7163 dataset_type = ZFS_TYPE_SNAPSHOT; 7164 break; 7165 case 'S': 7166 path = get_space_path(optarg); 7167 printf("%s\n", path); 7168 exit(0); 7169 case 'p': 7170 properties = optarg; 7171 break; 7172 case 'v': 7173 fprintf(stderr, "xget version %s\n", XVERSION); 7174 exit(0); 7175 default: 7176 (void) fprintf(stderr, 7177 gettext("invalid option '%c'\n"), optopt); 7178 usage(B_FALSE); 7179 } 7180 } 7181 7182 argc -= optind; 7183 argv += optind; 7184 7185 if (!rootfs) 7186 rootfs = *argv; 7187 7188 if (rootfs == NULL) { 7189 return zfs_iter_root(g_zfs, xget, properties); 7190 } else { 7191 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 7192 ZFS_TYPE_FILESYSTEM); 7193 if (!zfsh) { 7194 fprintf(stderr, "zfs_open failed for %s\n", 7195 rootfs); 7196 exit(1); 7197 } 7198 return xget(zfsh, properties); 7199 } 7200 } 7201 7202 static int 7203 zfs_do_diff(int argc, char **argv) 7204 { 7205 zfs_handle_t *zhp; 7206 int flags = 0; 7207 char *tosnap = NULL; 7208 char *fromsnap = NULL; 7209 char *atp, *copy; 7210 int err = 0; 7211 int c; 7212 7213 while ((c = getopt(argc, argv, "FHt")) != -1) { 7214 switch (c) { 7215 case 'F': 7216 flags |= ZFS_DIFF_CLASSIFY; 7217 break; 7218 case 'H': 7219 flags |= ZFS_DIFF_PARSEABLE; 7220 break; 7221 case 't': 7222 flags |= ZFS_DIFF_TIMESTAMP; 7223 break; 7224 default: 7225 (void) fprintf(stderr, 7226 gettext("invalid option '%c'\n"), optopt); 7227 usage(B_FALSE); 7228 } 7229 } 7230 7231 argc -= optind; 7232 argv += optind; 7233 7234 if (argc < 1) { 7235 (void) fprintf(stderr, 7236 gettext("must provide at least one snapshot name\n")); 7237 usage(B_FALSE); 7238 } 7239 7240 if (argc > 2) { 7241 (void) fprintf(stderr, gettext("too many arguments\n")); 7242 usage(B_FALSE); 7243 } 7244 7245 fromsnap = argv[0]; 7246 tosnap = (argc == 2) ? argv[1] : NULL; 7247 7248 copy = NULL; 7249 if (*fromsnap != '@') 7250 copy = strdup(fromsnap); 7251 else if (tosnap) 7252 copy = strdup(tosnap); 7253 if (copy == NULL) 7254 usage(B_FALSE); 7255 7256 if (atp = strchr(copy, '@')) 7257 *atp = '\0'; 7258 7259 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 7260 return (1); 7261 7262 free(copy); 7263 7264 /* 7265 * Ignore SIGPIPE so that the library can give us 7266 * information on any failure 7267 */ 7268 (void) sigignore(SIGPIPE); 7269 7270 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7271 7272 zfs_close(zhp); 7273 7274 return (err != 0); 7275 } 7276 7277 /* 7278 * zfs bookmark <fs@snap> <fs#bmark> 7279 * 7280 * Creates a bookmark with the given name from the given snapshot. 7281 */ 7282 static int 7283 zfs_do_bookmark(int argc, char **argv) 7284 { 7285 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 7286 zfs_handle_t *zhp; 7287 nvlist_t *nvl; 7288 int ret = 0; 7289 int c; 7290 7291 /* check options */ 7292 while ((c = getopt(argc, argv, "")) != -1) { 7293 switch (c) { 7294 case '?': 7295 (void) fprintf(stderr, 7296 gettext("invalid option '%c'\n"), optopt); 7297 goto usage; 7298 } 7299 } 7300 7301 argc -= optind; 7302 argv += optind; 7303 7304 /* check number of arguments */ 7305 if (argc < 1) { 7306 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7307 goto usage; 7308 } 7309 if (argc < 2) { 7310 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7311 goto usage; 7312 } 7313 7314 if (strchr(argv[1], '#') == NULL) { 7315 (void) fprintf(stderr, 7316 gettext("invalid bookmark name '%s' -- " 7317 "must contain a '#'\n"), argv[1]); 7318 goto usage; 7319 } 7320 7321 if (argv[0][0] == '@') { 7322 /* 7323 * Snapshot name begins with @. 7324 * Default to same fs as bookmark. 7325 */ 7326 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7327 *strchr(snapname, '#') = '\0'; 7328 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7329 } else { 7330 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7331 } 7332 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7333 if (zhp == NULL) 7334 goto usage; 7335 zfs_close(zhp); 7336 7337 7338 nvl = fnvlist_alloc(); 7339 fnvlist_add_string(nvl, argv[1], snapname); 7340 ret = lzc_bookmark(nvl, NULL); 7341 fnvlist_free(nvl); 7342 7343 if (ret != 0) { 7344 const char *err_msg; 7345 char errbuf[1024]; 7346 7347 (void) snprintf(errbuf, sizeof (errbuf), 7348 dgettext(TEXT_DOMAIN, 7349 "cannot create bookmark '%s'"), argv[1]); 7350 7351 switch (ret) { 7352 case EXDEV: 7353 err_msg = "bookmark is in a different pool"; 7354 break; 7355 case EEXIST: 7356 err_msg = "bookmark exists"; 7357 break; 7358 case EINVAL: 7359 err_msg = "invalid argument"; 7360 break; 7361 case ENOTSUP: 7362 err_msg = "bookmark feature not enabled"; 7363 break; 7364 case ENOSPC: 7365 err_msg = "out of space"; 7366 break; 7367 default: 7368 err_msg = "unknown error"; 7369 break; 7370 } 7371 (void) fprintf(stderr, "%s: %s\n", errbuf, 7372 dgettext(TEXT_DOMAIN, err_msg)); 7373 } 7374 7375 return (ret != 0); 7376 7377 usage: 7378 usage(B_FALSE); 7379 return (-1); 7380 } 7381 7382 int 7383 main(int argc, char **argv) 7384 { 7385 int ret = 0; 7386 int i; 7387 char *progname; 7388 char *cmdname; 7389 7390 (void) setlocale(LC_ALL, ""); 7391 (void) textdomain(TEXT_DOMAIN); 7392 7393 opterr = 0; 7394 7395 if ((g_zfs = libzfs_init()) == NULL) { 7396 (void) fprintf(stderr, gettext("internal error: failed to " 7397 "initialize ZFS library\n")); 7398 return (1); 7399 } 7400 7401 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7402 7403 libzfs_print_on_error(g_zfs, B_TRUE); 7404 7405 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7406 (void) fprintf(stderr, gettext("internal error: unable to " 7407 "open %s\n"), MNTTAB); 7408 return (1); 7409 } 7410 7411 /* Log ZFS commands to syslog. */ 7412 if (argc > 1) { 7413 char *fullcmd, *tmp; 7414 int full_arg_len = 1; 7415 int arg_len; 7416 7417 openlog("zfs", LOG_PID, LOG_DAEMON); 7418 for (i = 0; i < argc; i++) { 7419 full_arg_len += strlen(argv[i]) + 1; 7420 } 7421 fullcmd = malloc(full_arg_len); 7422 assert(fullcmd != NULL); 7423 7424 tmp = fullcmd; 7425 for (i = 0; i < argc; i++) { 7426 arg_len = strlen(argv[i]); 7427 strncpy(tmp, argv[i], arg_len); 7428 tmp += arg_len; 7429 strcpy(tmp, " "); 7430 ++tmp; 7431 } 7432 syslog(LOG_INFO, "%s", fullcmd); 7433 closelog(); 7434 free(fullcmd); 7435 } 7436 7437 /* 7438 * This command also doubles as the /etc/fs mount and unmount program. 7439 * Determine if we should take this behavior based on argv[0]. 7440 */ 7441 progname = basename(argv[0]); 7442 if (strcmp(progname, "mount") == 0) { 7443 ret = manual_mount(argc, argv); 7444 } else if (strcmp(progname, "umount") == 0) { 7445 ret = manual_unmount(argc, argv); 7446 } else { 7447 /* 7448 * Make sure the user has specified some command. 7449 */ 7450 if (argc < 2) { 7451 (void) fprintf(stderr, gettext("missing command\n")); 7452 usage(B_FALSE); 7453 } 7454 7455 cmdname = argv[1]; 7456 7457 /* 7458 * The 'umount' command is an alias for 'unmount' 7459 */ 7460 if (strcmp(cmdname, "umount") == 0) 7461 cmdname = "unmount"; 7462 7463 /* 7464 * The 'recv' command is an alias for 'receive' 7465 */ 7466 if (strcmp(cmdname, "recv") == 0) 7467 cmdname = "receive"; 7468 7469 /* 7470 * The 'snap' command is an alias for 'snapshot' 7471 */ 7472 if (strcmp(cmdname, "snap") == 0) 7473 cmdname = "snapshot"; 7474 7475 /* 7476 * Special case '-?' 7477 */ 7478 if (strcmp(cmdname, "-?") == 0) 7479 usage(B_TRUE); 7480 7481 /* 7482 * Run the appropriate command. 7483 */ 7484 libzfs_mnttab_cache(g_zfs, B_TRUE); 7485 if (find_command_idx(cmdname, &i) == 0) { 7486 current_command = &command_table[i]; 7487 ret = command_table[i].func(argc - 1, argv + 1); 7488 } else if (strchr(cmdname, '=') != NULL) { 7489 verify(find_command_idx("set", &i) == 0); 7490 current_command = &command_table[i]; 7491 ret = command_table[i].func(argc, argv); 7492 } else { 7493 (void) fprintf(stderr, gettext("unrecognized " 7494 "command '%s'\n"), cmdname); 7495 usage(B_FALSE); 7496 } 7497 libzfs_mnttab_cache(g_zfs, B_FALSE); 7498 } 7499 7500 (void) fclose(mnttab_file); 7501 7502 if (ret == 0 && log_history) 7503 (void) zpool_log_history(g_zfs, history_str); 7504 7505 libzfs_fini(g_zfs); 7506 7507 /* 7508 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7509 * for the purposes of running ::findleaks. 7510 */ 7511 if (getenv("ZFS_ABORT") != NULL) { 7512 (void) printf("dumping core by request\n"); 7513 abort(); 7514 } 7515 7516 return (ret); 7517 } 7518