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 (c) 2014 Integros [integros.com] 29 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 30 * Copyright 2016 Nexenta Systems, Inc. 31 */ 32 33 #include <assert.h> 34 #include <ctype.h> 35 #include <errno.h> 36 #include <libgen.h> 37 #include <libintl.h> 38 #include <libuutil.h> 39 #include <libnvpair.h> 40 #include <locale.h> 41 #include <stddef.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <strings.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <zone.h> 48 #include <grp.h> 49 #include <pwd.h> 50 #include <signal.h> 51 #include <sys/list.h> 52 #include <sys/mkdev.h> 53 #include <sys/mntent.h> 54 #include <sys/mnttab.h> 55 #include <sys/mount.h> 56 #include <sys/stat.h> 57 #include <sys/fs/zfs.h> 58 #include <sys/types.h> 59 #include <time.h> 60 #include <syslog.h> 61 62 #include <libzfs.h> 63 #include <libzfs_core.h> 64 #include <zfs_prop.h> 65 #include <zfs_deleg.h> 66 #include <libuutil.h> 67 #include <aclutils.h> 68 #include <directory.h> 69 #include <idmap.h> 70 #include <limits.h> 71 72 #include "zfs_iter.h" 73 #include "zfs_util.h" 74 #include "zfs_comutil.h" 75 76 #define XVERSION "1.2" 77 #define STG_POOL_FILE "/etc/stg/self.pool" 78 #define POOL_NAME_LEN 5 79 80 static int dataset_type = 0; /* decides which datasets we should print */ 81 82 libzfs_handle_t *g_zfs; 83 84 static FILE *mnttab_file; 85 static char history_str[HIS_MAX_RECORD_LEN]; 86 static boolean_t log_history = B_TRUE; 87 88 static int zfs_do_clone(int argc, char **argv); 89 static int zfs_do_create(int argc, char **argv); 90 static int zfs_do_destroy(int argc, char **argv); 91 static int zfs_do_get(int argc, char **argv); 92 static int zfs_do_inherit(int argc, char **argv); 93 static int zfs_do_list(int argc, char **argv); 94 static int zfs_do_mount(int argc, char **argv); 95 static int zfs_do_rename(int argc, char **argv); 96 static int zfs_do_rollback(int argc, char **argv); 97 static int zfs_do_set(int argc, char **argv); 98 static int zfs_do_upgrade(int argc, char **argv); 99 static int zfs_do_snapshot(int argc, char **argv); 100 static int zfs_do_unmount(int argc, char **argv); 101 static int zfs_do_share(int argc, char **argv); 102 static int zfs_do_unshare(int argc, char **argv); 103 static int zfs_do_send(int argc, char **argv); 104 static int zfs_do_receive(int argc, char **argv); 105 static int zfs_do_promote(int argc, char **argv); 106 static int zfs_do_userspace(int argc, char **argv); 107 static int zfs_do_allow(int argc, char **argv); 108 static int zfs_do_unallow(int argc, char **argv); 109 static int zfs_do_hold(int argc, char **argv); 110 static int zfs_do_holds(int argc, char **argv); 111 static int zfs_do_release(int argc, char **argv); 112 static int zfs_do_diff(int argc, char **argv); 113 static int zfs_do_bookmark(int argc, char **argv); 114 static int zfs_do_xlist(int argc, char **argv); 115 static int zfs_do_xget(int argc, char **argv); 116 117 /* 118 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 119 */ 120 121 #ifdef DEBUG 122 const char * 123 _umem_debug_init(void) 124 { 125 return ("default,verbose"); /* $UMEM_DEBUG setting */ 126 } 127 128 const char * 129 _umem_logging_init(void) 130 { 131 return ("fail,contents"); /* $UMEM_LOGGING setting */ 132 } 133 #endif 134 135 typedef enum { 136 HELP_CLONE, 137 HELP_CREATE, 138 HELP_DESTROY, 139 HELP_GET, 140 HELP_INHERIT, 141 HELP_UPGRADE, 142 HELP_LIST, 143 HELP_MOUNT, 144 HELP_PROMOTE, 145 HELP_RECEIVE, 146 HELP_RENAME, 147 HELP_ROLLBACK, 148 HELP_SEND, 149 HELP_SET, 150 HELP_SHARE, 151 HELP_SNAPSHOT, 152 HELP_UNMOUNT, 153 HELP_UNSHARE, 154 HELP_ALLOW, 155 HELP_UNALLOW, 156 HELP_USERSPACE, 157 HELP_GROUPSPACE, 158 HELP_HOLD, 159 HELP_HOLDS, 160 HELP_RELEASE, 161 HELP_DIFF, 162 HELP_BOOKMARK, 163 HELP_XLIST, 164 HELP_XGET, 165 } zfs_help_t; 166 167 typedef struct zfs_command { 168 const char *name; 169 int (*func)(int argc, char **argv); 170 zfs_help_t usage; 171 } zfs_command_t; 172 173 /* 174 * Master command table. Each ZFS command has a name, associated function, and 175 * usage message. The usage messages need to be internationalized, so we have 176 * to have a function to return the usage message based on a command index. 177 * 178 * These commands are organized according to how they are displayed in the usage 179 * message. An empty command (one with a NULL name) indicates an empty line in 180 * the generic usage message. 181 */ 182 static zfs_command_t command_table[] = { 183 { "create", zfs_do_create, HELP_CREATE }, 184 { "destroy", zfs_do_destroy, HELP_DESTROY }, 185 { NULL }, 186 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 187 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 188 { "clone", zfs_do_clone, HELP_CLONE }, 189 { "promote", zfs_do_promote, HELP_PROMOTE }, 190 { "rename", zfs_do_rename, HELP_RENAME }, 191 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 192 { NULL }, 193 { "list", zfs_do_list, HELP_LIST }, 194 { NULL }, 195 { "set", zfs_do_set, HELP_SET }, 196 { "get", zfs_do_get, HELP_GET }, 197 { "inherit", zfs_do_inherit, HELP_INHERIT }, 198 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 199 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 200 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 201 { NULL }, 202 { "mount", zfs_do_mount, HELP_MOUNT }, 203 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 204 { "share", zfs_do_share, HELP_SHARE }, 205 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 206 { NULL }, 207 { "send", zfs_do_send, HELP_SEND }, 208 { "receive", zfs_do_receive, HELP_RECEIVE }, 209 { NULL }, 210 { "allow", zfs_do_allow, HELP_ALLOW }, 211 { NULL }, 212 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 213 { NULL }, 214 { "hold", zfs_do_hold, HELP_HOLD }, 215 { "holds", zfs_do_holds, HELP_HOLDS }, 216 { "release", zfs_do_release, HELP_RELEASE }, 217 { "diff", zfs_do_diff, HELP_DIFF }, 218 { "xlist", zfs_do_xlist, HELP_XLIST }, 219 { "xget", zfs_do_xget, HELP_XGET }, 220 }; 221 222 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 223 224 zfs_command_t *current_command; 225 226 static const char * 227 get_usage(zfs_help_t idx) 228 { 229 switch (idx) { 230 case HELP_CLONE: 231 return (gettext("\tclone [-p] [-o property=value] ... " 232 "<snapshot> <filesystem|volume>\n")); 233 case HELP_CREATE: 234 return (gettext("\tcreate [-p] [-o property=value] ... " 235 "<filesystem>\n" 236 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 237 "-V <size> <volume>\n")); 238 case HELP_DESTROY: 239 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 240 "\tdestroy [-dnpRrv] " 241 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 242 "\tdestroy <filesystem|volume>#<bookmark>\n")); 243 case HELP_GET: 244 return (gettext("\tget [-rHp] [-d max] " 245 "[-o \"all\" | field[,...]]\n" 246 "\t [-t type[,...]] [-s source[,...]]\n" 247 "\t <\"all\" | property[,...]> " 248 "[filesystem|volume|snapshot|bookmark] ...\n")); 249 case HELP_INHERIT: 250 return (gettext("\tinherit [-rS] <property> " 251 "<filesystem|volume|snapshot> ...\n")); 252 case HELP_UPGRADE: 253 return (gettext("\tupgrade [-v]\n" 254 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 255 case HELP_LIST: 256 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 257 "[-s property]...\n\t [-S property]... [-t type[,...]] " 258 "[filesystem|volume|snapshot] ...\n")); 259 case HELP_MOUNT: 260 return (gettext("\tmount\n" 261 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 262 case HELP_PROMOTE: 263 return (gettext("\tpromote <clone-filesystem>\n")); 264 case HELP_RECEIVE: 265 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 266 "snapshot>\n" 267 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 268 "<filesystem>\n" 269 "\treceive -A <filesystem|volume>\n")); 270 case HELP_RENAME: 271 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 272 "<filesystem|volume|snapshot>\n" 273 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 274 "\trename -r <snapshot> <snapshot>\n")); 275 case HELP_ROLLBACK: 276 return (gettext("\trollback [-rRf] <snapshot>\n")); 277 case HELP_SEND: 278 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 279 "<snapshot>\n" 280 "\tsend [-Le] [-i snapshot|bookmark] " 281 "<filesystem|volume|snapshot>\n" 282 "\tsend [-nvPe] -t <receive_resume_token>\n")); 283 case HELP_SET: 284 return (gettext("\tset <property=value> ... " 285 "<filesystem|volume|snapshot> ...\n")); 286 case HELP_SHARE: 287 return (gettext("\tshare <-a | filesystem>\n")); 288 case HELP_SNAPSHOT: 289 return (gettext("\tsnapshot [-r] [-o property=value] ... " 290 "<filesystem|volume>@<snap> ...\n")); 291 case HELP_UNMOUNT: 292 return (gettext("\tunmount [-f] " 293 "<-a | filesystem|mountpoint>\n")); 294 case HELP_UNSHARE: 295 return (gettext("\tunshare " 296 "<-a | filesystem|mountpoint>\n")); 297 case HELP_ALLOW: 298 return (gettext("\tallow <filesystem|volume>\n" 299 "\tallow [-ldug] " 300 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 301 "\t <filesystem|volume>\n" 302 "\tallow [-ld] -e <perm|@setname>[,...] " 303 "<filesystem|volume>\n" 304 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 305 "\tallow -s @setname <perm|@setname>[,...] " 306 "<filesystem|volume>\n")); 307 case HELP_UNALLOW: 308 return (gettext("\tunallow [-rldug] " 309 "<\"everyone\"|user|group>[,...]\n" 310 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 311 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n" 313 "\tunallow [-r] -c [<perm|@setname>[,...]] " 314 "<filesystem|volume>\n" 315 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 316 "<filesystem|volume>\n")); 317 case HELP_USERSPACE: 318 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 319 "[-s field] ...\n" 320 "\t [-S field] ... [-t type[,...]] " 321 "<filesystem|snapshot>\n")); 322 case HELP_GROUPSPACE: 323 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 324 "[-s field] ...\n" 325 "\t [-S field] ... [-t type[,...]] " 326 "<filesystem|snapshot>\n")); 327 case HELP_HOLD: 328 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 329 case HELP_HOLDS: 330 return (gettext("\tholds [-r] <snapshot> ...\n")); 331 case HELP_RELEASE: 332 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 333 case HELP_DIFF: 334 return (gettext("\tdiff [-FHt] <snapshot> " 335 "[snapshot|filesystem]\n")); 336 case HELP_XLIST: 337 return (gettext("\n\txlist [-a] [-r <rid>] [-s] [-S <rid>] " 338 "[filesystem]\n\n" 339 "\t-a: print filesystems, bookmarks, and snapshots\n" 340 "\t-b: print bookmarks only\n" 341 "\t-r: iterate over rid fs\n" 342 "\t-s: print snapshots only\n" 343 "\t-S: print space path\n" 344 "\t-v: print rzfs version\n" 345 "\nDefault: print filesystems only\n")); 346 case HELP_XGET: 347 return (gettext("\n\txget [-a] [-r <rid>] [-s] [-S <rid>] " 348 "[-p <prop1,prop2...>] [filesystem]\n\n" 349 "\t-a: print filesystems, bookmarks, and snapshots\n" 350 "\t-b: print bookmarks only\n" 351 "\t-p: list of properties to print\n" 352 "\t-r: iterate over rid fs\n" 353 "\t-s: print snapshots only\n" 354 "\t-v: print rzfs version\n" 355 "\nDefault: print filesystems only\n")); 356 case HELP_BOOKMARK: 357 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 358 } 359 360 abort(); 361 /* NOTREACHED */ 362 } 363 364 void 365 nomem(void) 366 { 367 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 368 exit(1); 369 } 370 371 /* 372 * Utility function to guarantee malloc() success. 373 */ 374 375 void * 376 safe_malloc(size_t size) 377 { 378 void *data; 379 380 if ((data = calloc(1, size)) == NULL) 381 nomem(); 382 383 return (data); 384 } 385 386 static char * 387 safe_strdup(char *str) 388 { 389 char *dupstr = strdup(str); 390 391 if (dupstr == NULL) 392 nomem(); 393 394 return (dupstr); 395 } 396 397 /* 398 * Callback routine that will print out information for each of 399 * the properties. 400 */ 401 static int 402 usage_prop_cb(int prop, void *cb) 403 { 404 FILE *fp = cb; 405 406 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 407 408 if (zfs_prop_readonly(prop)) 409 (void) fprintf(fp, " NO "); 410 else 411 (void) fprintf(fp, "YES "); 412 413 if (zfs_prop_inheritable(prop)) 414 (void) fprintf(fp, " YES "); 415 else 416 (void) fprintf(fp, " NO "); 417 418 if (zfs_prop_values(prop) == NULL) 419 (void) fprintf(fp, "-\n"); 420 else 421 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 422 423 return (ZPROP_CONT); 424 } 425 426 /* 427 * Display usage message. If we're inside a command, display only the usage for 428 * that command. Otherwise, iterate over the entire command table and display 429 * a complete usage message. 430 */ 431 static void 432 usage(boolean_t requested) 433 { 434 int i; 435 boolean_t show_properties = B_FALSE; 436 FILE *fp = requested ? stdout : stderr; 437 438 if (current_command == NULL) { 439 440 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 441 (void) fprintf(fp, 442 gettext("where 'command' is one of the following:\n\n")); 443 444 for (i = 0; i < NCOMMAND; i++) { 445 if (command_table[i].name == NULL) 446 (void) fprintf(fp, "\n"); 447 else 448 (void) fprintf(fp, "%s", 449 get_usage(command_table[i].usage)); 450 } 451 452 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 453 "pool/[dataset/]*dataset[@name]\n")); 454 } else { 455 (void) fprintf(fp, gettext("usage:\n")); 456 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 457 } 458 459 if (current_command != NULL && 460 (strcmp(current_command->name, "set") == 0 || 461 strcmp(current_command->name, "get") == 0 || 462 strcmp(current_command->name, "inherit") == 0 || 463 strcmp(current_command->name, "list") == 0)) 464 show_properties = B_TRUE; 465 466 if (show_properties) { 467 (void) fprintf(fp, 468 gettext("\nThe following properties are supported:\n")); 469 470 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 471 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 472 473 /* Iterate over all properties */ 474 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 475 ZFS_TYPE_DATASET); 476 477 (void) fprintf(fp, "\t%-15s ", "userused@..."); 478 (void) fprintf(fp, " NO NO <size>\n"); 479 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 480 (void) fprintf(fp, " NO NO <size>\n"); 481 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 482 (void) fprintf(fp, "YES NO <size> | none\n"); 483 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 484 (void) fprintf(fp, "YES NO <size> | none\n"); 485 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 486 (void) fprintf(fp, " NO NO <size>\n"); 487 488 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 489 "with standard units such as K, M, G, etc.\n")); 490 (void) fprintf(fp, gettext("\nUser-defined properties can " 491 "be specified by using a name containing a colon (:).\n")); 492 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 493 "properties must be appended with\n" 494 "a user or group specifier of one of these forms:\n" 495 " POSIX name (eg: \"matt\")\n" 496 " POSIX id (eg: \"126829\")\n" 497 " SMB name@domain (eg: \"matt@sun\")\n" 498 " SMB SID (eg: \"S-1-234-567-89\")\n")); 499 } else { 500 (void) fprintf(fp, 501 gettext("\nFor the property list, run: %s\n"), 502 "zfs set|get"); 503 (void) fprintf(fp, 504 gettext("\nFor the delegated permission list, run: %s\n"), 505 "zfs allow|unallow"); 506 } 507 508 /* 509 * See comments at end of main(). 510 */ 511 if (getenv("ZFS_ABORT") != NULL) { 512 (void) printf("dumping core by request\n"); 513 abort(); 514 } 515 516 exit(requested ? 0 : 2); 517 } 518 519 /* 520 * Take a property=value argument string and add it to the given nvlist. 521 * Modifies the argument inplace. 522 */ 523 static int 524 parseprop(nvlist_t *props, char *propname) 525 { 526 char *propval, *strval; 527 528 if ((propval = strchr(propname, '=')) == NULL) { 529 (void) fprintf(stderr, gettext("missing " 530 "'=' for property=value argument\n")); 531 return (-1); 532 } 533 *propval = '\0'; 534 propval++; 535 if (nvlist_lookup_string(props, propname, &strval) == 0) { 536 (void) fprintf(stderr, gettext("property '%s' " 537 "specified multiple times\n"), propname); 538 return (-1); 539 } 540 if (nvlist_add_string(props, propname, propval) != 0) 541 nomem(); 542 return (0); 543 } 544 545 static int 546 parse_depth(char *opt, int *flags) 547 { 548 char *tmp; 549 int depth; 550 551 depth = (int)strtol(opt, &tmp, 0); 552 if (*tmp) { 553 (void) fprintf(stderr, 554 gettext("%s is not an integer\n"), optarg); 555 usage(B_FALSE); 556 } 557 if (depth < 0) { 558 (void) fprintf(stderr, 559 gettext("Depth can not be negative.\n")); 560 usage(B_FALSE); 561 } 562 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 563 return (depth); 564 } 565 566 #define PROGRESS_DELAY 2 /* seconds */ 567 568 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"; 569 static time_t pt_begin; 570 static char *pt_header = NULL; 571 static boolean_t pt_shown; 572 573 static void 574 start_progress_timer(void) 575 { 576 pt_begin = time(NULL) + PROGRESS_DELAY; 577 pt_shown = B_FALSE; 578 } 579 580 static void 581 set_progress_header(char *header) 582 { 583 assert(pt_header == NULL); 584 pt_header = safe_strdup(header); 585 if (pt_shown) { 586 (void) printf("%s: ", header); 587 (void) fflush(stdout); 588 } 589 } 590 591 static void 592 update_progress(char *update) 593 { 594 if (!pt_shown && time(NULL) > pt_begin) { 595 int len = strlen(update); 596 597 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 598 pt_reverse); 599 (void) fflush(stdout); 600 pt_shown = B_TRUE; 601 } else if (pt_shown) { 602 int len = strlen(update); 603 604 (void) printf("%s%*.*s", update, len, len, pt_reverse); 605 (void) fflush(stdout); 606 } 607 } 608 609 static void 610 finish_progress(char *done) 611 { 612 if (pt_shown) { 613 (void) printf("%s\n", done); 614 (void) fflush(stdout); 615 } 616 free(pt_header); 617 pt_header = NULL; 618 } 619 620 /* 621 * Check if the dataset is mountable and should be automatically mounted. 622 */ 623 static boolean_t 624 should_auto_mount(zfs_handle_t *zhp) 625 { 626 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 627 return (B_FALSE); 628 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 629 } 630 631 /* 632 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 633 * 634 * Given an existing dataset, create a writable copy whose initial contents 635 * are the same as the source. The newly created dataset maintains a 636 * dependency on the original; the original cannot be destroyed so long as 637 * the clone exists. 638 * 639 * The '-p' flag creates all the non-existing ancestors of the target first. 640 */ 641 static int 642 zfs_do_clone(int argc, char **argv) 643 { 644 zfs_handle_t *zhp = NULL; 645 boolean_t parents = B_FALSE; 646 nvlist_t *props; 647 int ret = 0; 648 int c; 649 650 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 651 nomem(); 652 653 /* check options */ 654 while ((c = getopt(argc, argv, "o:p")) != -1) { 655 switch (c) { 656 case 'o': 657 if (parseprop(props, optarg) != 0) 658 return (1); 659 break; 660 case 'p': 661 parents = B_TRUE; 662 break; 663 case '?': 664 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 665 optopt); 666 goto usage; 667 } 668 } 669 670 argc -= optind; 671 argv += optind; 672 673 /* check number of arguments */ 674 if (argc < 1) { 675 (void) fprintf(stderr, gettext("missing source dataset " 676 "argument\n")); 677 goto usage; 678 } 679 if (argc < 2) { 680 (void) fprintf(stderr, gettext("missing target dataset " 681 "argument\n")); 682 goto usage; 683 } 684 if (argc > 2) { 685 (void) fprintf(stderr, gettext("too many arguments\n")); 686 goto usage; 687 } 688 689 /* open the source dataset */ 690 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 691 return (1); 692 693 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 694 ZFS_TYPE_VOLUME)) { 695 /* 696 * Now create the ancestors of the target dataset. If the 697 * target already exists and '-p' option was used we should not 698 * complain. 699 */ 700 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 701 ZFS_TYPE_VOLUME)) 702 return (0); 703 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 704 return (1); 705 } 706 707 /* pass to libzfs */ 708 ret = zfs_clone(zhp, argv[1], props); 709 710 /* create the mountpoint if necessary */ 711 if (ret == 0) { 712 zfs_handle_t *clone; 713 714 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 715 if (clone != NULL) { 716 /* 717 * If the user doesn't want the dataset 718 * automatically mounted, then skip the mount/share 719 * step. 720 */ 721 if (should_auto_mount(clone)) { 722 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 723 (void) fprintf(stderr, gettext("clone " 724 "successfully created, " 725 "but not mounted\n")); 726 } else if ((ret = zfs_share(clone)) != 0) { 727 (void) fprintf(stderr, gettext("clone " 728 "successfully created, " 729 "but not shared\n")); 730 } 731 } 732 zfs_close(clone); 733 } 734 } 735 736 zfs_close(zhp); 737 nvlist_free(props); 738 739 return (!!ret); 740 741 usage: 742 if (zhp) 743 zfs_close(zhp); 744 nvlist_free(props); 745 usage(B_FALSE); 746 return (-1); 747 } 748 749 /* 750 * zfs create [-p] [-o prop=value] ... fs 751 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 752 * 753 * Create a new dataset. This command can be used to create filesystems 754 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 755 * For volumes, the user must specify a size to be used. 756 * 757 * The '-s' flag applies only to volumes, and indicates that we should not try 758 * to set the reservation for this volume. By default we set a reservation 759 * equal to the size for any volume. For pools with SPA_VERSION >= 760 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 761 * 762 * The '-p' flag creates all the non-existing ancestors of the target first. 763 */ 764 static int 765 zfs_do_create(int argc, char **argv) 766 { 767 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 768 zfs_handle_t *zhp = NULL; 769 uint64_t volsize = 0; 770 int c; 771 boolean_t noreserve = B_FALSE; 772 boolean_t bflag = B_FALSE; 773 boolean_t parents = B_FALSE; 774 int ret = 1; 775 nvlist_t *props; 776 uint64_t intval; 777 778 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 779 nomem(); 780 781 /* check options */ 782 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 783 switch (c) { 784 case 'V': 785 type = ZFS_TYPE_VOLUME; 786 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 787 (void) fprintf(stderr, gettext("bad volume " 788 "size '%s': %s\n"), optarg, 789 libzfs_error_description(g_zfs)); 790 goto error; 791 } 792 793 if (nvlist_add_uint64(props, 794 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 795 nomem(); 796 volsize = intval; 797 break; 798 case 'p': 799 parents = B_TRUE; 800 break; 801 case 'b': 802 bflag = B_TRUE; 803 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 804 (void) fprintf(stderr, gettext("bad volume " 805 "block size '%s': %s\n"), optarg, 806 libzfs_error_description(g_zfs)); 807 goto error; 808 } 809 810 if (nvlist_add_uint64(props, 811 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 812 intval) != 0) 813 nomem(); 814 break; 815 case 'o': 816 if (parseprop(props, optarg) != 0) 817 goto error; 818 break; 819 case 's': 820 noreserve = B_TRUE; 821 break; 822 case ':': 823 (void) fprintf(stderr, gettext("missing size " 824 "argument\n")); 825 goto badusage; 826 case '?': 827 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 828 optopt); 829 goto badusage; 830 } 831 } 832 833 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 834 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 835 "used when creating a volume\n")); 836 goto badusage; 837 } 838 839 argc -= optind; 840 argv += optind; 841 842 /* check number of arguments */ 843 if (argc == 0) { 844 (void) fprintf(stderr, gettext("missing %s argument\n"), 845 zfs_type_to_name(type)); 846 goto badusage; 847 } 848 if (argc > 1) { 849 (void) fprintf(stderr, gettext("too many arguments\n")); 850 goto badusage; 851 } 852 853 if (type == ZFS_TYPE_VOLUME && !noreserve) { 854 zpool_handle_t *zpool_handle; 855 nvlist_t *real_props = NULL; 856 uint64_t spa_version; 857 char *p; 858 zfs_prop_t resv_prop; 859 char *strval; 860 char msg[1024]; 861 862 if ((p = strchr(argv[0], '/')) != NULL) 863 *p = '\0'; 864 zpool_handle = zpool_open(g_zfs, argv[0]); 865 if (p != NULL) 866 *p = '/'; 867 if (zpool_handle == NULL) 868 goto error; 869 spa_version = zpool_get_prop_int(zpool_handle, 870 ZPOOL_PROP_VERSION, NULL); 871 if (spa_version >= SPA_VERSION_REFRESERVATION) 872 resv_prop = ZFS_PROP_REFRESERVATION; 873 else 874 resv_prop = ZFS_PROP_RESERVATION; 875 876 (void) snprintf(msg, sizeof (msg), 877 gettext("cannot create '%s'"), argv[0]); 878 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 879 props, 0, NULL, zpool_handle, msg)) == NULL) { 880 zpool_close(zpool_handle); 881 goto error; 882 } 883 zpool_close(zpool_handle); 884 885 volsize = zvol_volsize_to_reservation(volsize, real_props); 886 nvlist_free(real_props); 887 888 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 889 &strval) != 0) { 890 if (nvlist_add_uint64(props, 891 zfs_prop_to_name(resv_prop), volsize) != 0) { 892 nvlist_free(props); 893 nomem(); 894 } 895 } 896 } 897 898 if (parents && zfs_name_valid(argv[0], type)) { 899 /* 900 * Now create the ancestors of target dataset. If the target 901 * already exists and '-p' option was used we should not 902 * complain. 903 */ 904 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 905 ret = 0; 906 goto error; 907 } 908 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 909 goto error; 910 } 911 912 /* pass to libzfs */ 913 if (zfs_create(g_zfs, argv[0], type, props) != 0) 914 goto error; 915 916 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 917 goto error; 918 919 ret = 0; 920 921 /* 922 * Mount and/or share the new filesystem as appropriate. We provide a 923 * verbose error message to let the user know that their filesystem was 924 * in fact created, even if we failed to mount or share it. 925 * If the user doesn't want the dataset automatically mounted, 926 * then skip the mount/share step altogether. 927 */ 928 if (should_auto_mount(zhp)) { 929 if (zfs_mount(zhp, NULL, 0) != 0) { 930 (void) fprintf(stderr, gettext("filesystem " 931 "successfully created, but not mounted\n")); 932 ret = 1; 933 } else if (zfs_share(zhp) != 0) { 934 (void) fprintf(stderr, gettext("filesystem " 935 "successfully created, but not shared\n")); 936 ret = 1; 937 } 938 } 939 940 error: 941 if (zhp) 942 zfs_close(zhp); 943 nvlist_free(props); 944 return (ret); 945 badusage: 946 nvlist_free(props); 947 usage(B_FALSE); 948 return (2); 949 } 950 951 /* 952 * zfs destroy [-rRf] <fs, vol> 953 * zfs destroy [-rRd] <snap> 954 * 955 * -r Recursively destroy all children 956 * -R Recursively destroy all dependents, including clones 957 * -f Force unmounting of any dependents 958 * -d If we can't destroy now, mark for deferred destruction 959 * 960 * Destroys the given dataset. By default, it will unmount any filesystems, 961 * and refuse to destroy a dataset that has any dependents. A dependent can 962 * either be a child, or a clone of a child. 963 */ 964 typedef struct destroy_cbdata { 965 boolean_t cb_first; 966 boolean_t cb_force; 967 boolean_t cb_recurse; 968 boolean_t cb_error; 969 boolean_t cb_doclones; 970 zfs_handle_t *cb_target; 971 boolean_t cb_defer_destroy; 972 boolean_t cb_verbose; 973 boolean_t cb_parsable; 974 boolean_t cb_dryrun; 975 nvlist_t *cb_nvl; 976 nvlist_t *cb_batchedsnaps; 977 978 /* first snap in contiguous run */ 979 char *cb_firstsnap; 980 /* previous snap in contiguous run */ 981 char *cb_prevsnap; 982 int64_t cb_snapused; 983 char *cb_snapspec; 984 char *cb_bookmark; 985 } destroy_cbdata_t; 986 987 /* 988 * Check for any dependents based on the '-r' or '-R' flags. 989 */ 990 static int 991 destroy_check_dependent(zfs_handle_t *zhp, void *data) 992 { 993 destroy_cbdata_t *cbp = data; 994 const char *tname = zfs_get_name(cbp->cb_target); 995 const char *name = zfs_get_name(zhp); 996 997 if (strncmp(tname, name, strlen(tname)) == 0 && 998 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 999 /* 1000 * This is a direct descendant, not a clone somewhere else in 1001 * the hierarchy. 1002 */ 1003 if (cbp->cb_recurse) 1004 goto out; 1005 1006 if (cbp->cb_first) { 1007 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1008 "%s has children\n"), 1009 zfs_get_name(cbp->cb_target), 1010 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1011 (void) fprintf(stderr, gettext("use '-r' to destroy " 1012 "the following datasets:\n")); 1013 cbp->cb_first = B_FALSE; 1014 cbp->cb_error = B_TRUE; 1015 } 1016 1017 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1018 } else { 1019 /* 1020 * This is a clone. We only want to report this if the '-r' 1021 * wasn't specified, or the target is a snapshot. 1022 */ 1023 if (!cbp->cb_recurse && 1024 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1025 goto out; 1026 1027 if (cbp->cb_first) { 1028 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1029 "%s has dependent clones\n"), 1030 zfs_get_name(cbp->cb_target), 1031 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1032 (void) fprintf(stderr, gettext("use '-R' to destroy " 1033 "the following datasets:\n")); 1034 cbp->cb_first = B_FALSE; 1035 cbp->cb_error = B_TRUE; 1036 cbp->cb_dryrun = B_TRUE; 1037 } 1038 1039 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1040 } 1041 1042 out: 1043 zfs_close(zhp); 1044 return (0); 1045 } 1046 1047 static int 1048 destroy_callback(zfs_handle_t *zhp, void *data) 1049 { 1050 destroy_cbdata_t *cb = data; 1051 const char *name = zfs_get_name(zhp); 1052 1053 if (cb->cb_verbose) { 1054 if (cb->cb_parsable) { 1055 (void) printf("destroy\t%s\n", name); 1056 } else if (cb->cb_dryrun) { 1057 (void) printf(gettext("would destroy %s\n"), 1058 name); 1059 } else { 1060 (void) printf(gettext("will destroy %s\n"), 1061 name); 1062 } 1063 } 1064 1065 /* 1066 * Ignore pools (which we've already flagged as an error before getting 1067 * here). 1068 */ 1069 if (strchr(zfs_get_name(zhp), '/') == NULL && 1070 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1071 zfs_close(zhp); 1072 return (0); 1073 } 1074 if (cb->cb_dryrun) { 1075 zfs_close(zhp); 1076 return (0); 1077 } 1078 1079 /* 1080 * We batch up all contiguous snapshots (even of different 1081 * filesystems) and destroy them with one ioctl. We can't 1082 * simply do all snap deletions and then all fs deletions, 1083 * because we must delete a clone before its origin. 1084 */ 1085 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1086 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1087 } else { 1088 int error = zfs_destroy_snaps_nvl(g_zfs, 1089 cb->cb_batchedsnaps, B_FALSE); 1090 fnvlist_free(cb->cb_batchedsnaps); 1091 cb->cb_batchedsnaps = fnvlist_alloc(); 1092 1093 if (error != 0 || 1094 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1095 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1096 zfs_close(zhp); 1097 return (-1); 1098 } 1099 } 1100 1101 zfs_close(zhp); 1102 return (0); 1103 } 1104 1105 static int 1106 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1107 { 1108 destroy_cbdata_t *cb = arg; 1109 const char *name = zfs_get_name(zhp); 1110 int err = 0; 1111 1112 if (nvlist_exists(cb->cb_nvl, name)) { 1113 if (cb->cb_firstsnap == NULL) 1114 cb->cb_firstsnap = strdup(name); 1115 if (cb->cb_prevsnap != NULL) 1116 free(cb->cb_prevsnap); 1117 /* this snap continues the current range */ 1118 cb->cb_prevsnap = strdup(name); 1119 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1120 nomem(); 1121 if (cb->cb_verbose) { 1122 if (cb->cb_parsable) { 1123 (void) printf("destroy\t%s\n", name); 1124 } else if (cb->cb_dryrun) { 1125 (void) printf(gettext("would destroy %s\n"), 1126 name); 1127 } else { 1128 (void) printf(gettext("will destroy %s\n"), 1129 name); 1130 } 1131 } 1132 } else if (cb->cb_firstsnap != NULL) { 1133 /* end of this range */ 1134 uint64_t used = 0; 1135 err = lzc_snaprange_space(cb->cb_firstsnap, 1136 cb->cb_prevsnap, &used); 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 zfs_close(zhp); 1144 return (err); 1145 } 1146 1147 static int 1148 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1149 { 1150 int err = 0; 1151 assert(cb->cb_firstsnap == NULL); 1152 assert(cb->cb_prevsnap == NULL); 1153 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1154 if (cb->cb_firstsnap != NULL) { 1155 uint64_t used = 0; 1156 if (err == 0) { 1157 err = lzc_snaprange_space(cb->cb_firstsnap, 1158 cb->cb_prevsnap, &used); 1159 } 1160 cb->cb_snapused += used; 1161 free(cb->cb_firstsnap); 1162 cb->cb_firstsnap = NULL; 1163 free(cb->cb_prevsnap); 1164 cb->cb_prevsnap = NULL; 1165 } 1166 return (err); 1167 } 1168 1169 static int 1170 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1171 { 1172 destroy_cbdata_t *cb = arg; 1173 int err = 0; 1174 1175 /* Check for clones. */ 1176 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1177 cb->cb_target = zhp; 1178 cb->cb_first = B_TRUE; 1179 err = zfs_iter_dependents(zhp, B_TRUE, 1180 destroy_check_dependent, cb); 1181 } 1182 1183 if (err == 0) { 1184 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1185 nomem(); 1186 } 1187 zfs_close(zhp); 1188 return (err); 1189 } 1190 1191 static int 1192 gather_snapshots(zfs_handle_t *zhp, void *arg) 1193 { 1194 destroy_cbdata_t *cb = arg; 1195 int err = 0; 1196 1197 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1198 if (err == ENOENT) 1199 err = 0; 1200 if (err != 0) 1201 goto out; 1202 1203 if (cb->cb_verbose) { 1204 err = destroy_print_snapshots(zhp, cb); 1205 if (err != 0) 1206 goto out; 1207 } 1208 1209 if (cb->cb_recurse) 1210 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1211 1212 out: 1213 zfs_close(zhp); 1214 return (err); 1215 } 1216 1217 static int 1218 destroy_clones(destroy_cbdata_t *cb) 1219 { 1220 nvpair_t *pair; 1221 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1222 pair != NULL; 1223 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1224 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1225 ZFS_TYPE_SNAPSHOT); 1226 if (zhp != NULL) { 1227 boolean_t defer = cb->cb_defer_destroy; 1228 int err = 0; 1229 1230 /* 1231 * We can't defer destroy non-snapshots, so set it to 1232 * false while destroying the clones. 1233 */ 1234 cb->cb_defer_destroy = B_FALSE; 1235 err = zfs_iter_dependents(zhp, B_FALSE, 1236 destroy_callback, cb); 1237 cb->cb_defer_destroy = defer; 1238 zfs_close(zhp); 1239 if (err != 0) 1240 return (err); 1241 } 1242 } 1243 return (0); 1244 } 1245 1246 static int 1247 zfs_do_destroy(int argc, char **argv) 1248 { 1249 destroy_cbdata_t cb = { 0 }; 1250 int rv = 0; 1251 int err = 0; 1252 int c; 1253 zfs_handle_t *zhp = NULL; 1254 char *at, *pound; 1255 zfs_type_t type = ZFS_TYPE_DATASET; 1256 1257 /* check options */ 1258 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1259 switch (c) { 1260 case 'v': 1261 cb.cb_verbose = B_TRUE; 1262 break; 1263 case 'p': 1264 cb.cb_verbose = B_TRUE; 1265 cb.cb_parsable = B_TRUE; 1266 break; 1267 case 'n': 1268 cb.cb_dryrun = B_TRUE; 1269 break; 1270 case 'd': 1271 cb.cb_defer_destroy = B_TRUE; 1272 type = ZFS_TYPE_SNAPSHOT; 1273 break; 1274 case 'f': 1275 cb.cb_force = B_TRUE; 1276 break; 1277 case 'r': 1278 cb.cb_recurse = B_TRUE; 1279 break; 1280 case 'R': 1281 cb.cb_recurse = B_TRUE; 1282 cb.cb_doclones = B_TRUE; 1283 break; 1284 case '?': 1285 default: 1286 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1287 optopt); 1288 usage(B_FALSE); 1289 } 1290 } 1291 1292 argc -= optind; 1293 argv += optind; 1294 1295 /* check number of arguments */ 1296 if (argc == 0) { 1297 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1298 usage(B_FALSE); 1299 } 1300 if (argc > 1) { 1301 (void) fprintf(stderr, gettext("too many arguments\n")); 1302 usage(B_FALSE); 1303 } 1304 1305 at = strchr(argv[0], '@'); 1306 pound = strchr(argv[0], '#'); 1307 if (at != NULL) { 1308 1309 /* Build the list of snaps to destroy in cb_nvl. */ 1310 cb.cb_nvl = fnvlist_alloc(); 1311 1312 *at = '\0'; 1313 zhp = zfs_open(g_zfs, argv[0], 1314 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1315 if (zhp == NULL) 1316 return (1); 1317 1318 cb.cb_snapspec = at + 1; 1319 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1320 cb.cb_error) { 1321 rv = 1; 1322 goto out; 1323 } 1324 1325 if (nvlist_empty(cb.cb_nvl)) { 1326 (void) fprintf(stderr, gettext("could not find any " 1327 "snapshots to destroy; check snapshot names.\n")); 1328 rv = 1; 1329 goto out; 1330 } 1331 1332 if (cb.cb_verbose) { 1333 char buf[16]; 1334 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1335 if (cb.cb_parsable) { 1336 (void) printf("reclaim\t%llu\n", 1337 cb.cb_snapused); 1338 } else if (cb.cb_dryrun) { 1339 (void) printf(gettext("would reclaim %s\n"), 1340 buf); 1341 } else { 1342 (void) printf(gettext("will reclaim %s\n"), 1343 buf); 1344 } 1345 } 1346 1347 if (!cb.cb_dryrun) { 1348 if (cb.cb_doclones) { 1349 cb.cb_batchedsnaps = fnvlist_alloc(); 1350 err = destroy_clones(&cb); 1351 if (err == 0) { 1352 err = zfs_destroy_snaps_nvl(g_zfs, 1353 cb.cb_batchedsnaps, B_FALSE); 1354 } 1355 if (err != 0) { 1356 rv = 1; 1357 goto out; 1358 } 1359 } 1360 if (err == 0) { 1361 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1362 cb.cb_defer_destroy); 1363 } 1364 } 1365 1366 if (err != 0) 1367 rv = 1; 1368 } else if (pound != NULL) { 1369 int err; 1370 nvlist_t *nvl; 1371 1372 if (cb.cb_dryrun) { 1373 (void) fprintf(stderr, 1374 "dryrun is not supported with bookmark\n"); 1375 return (-1); 1376 } 1377 1378 if (cb.cb_defer_destroy) { 1379 (void) fprintf(stderr, 1380 "defer destroy is not supported with bookmark\n"); 1381 return (-1); 1382 } 1383 1384 if (cb.cb_recurse) { 1385 (void) fprintf(stderr, 1386 "recursive is not supported with bookmark\n"); 1387 return (-1); 1388 } 1389 1390 if (!zfs_bookmark_exists(argv[0])) { 1391 (void) fprintf(stderr, gettext("bookmark '%s' " 1392 "does not exist.\n"), argv[0]); 1393 return (1); 1394 } 1395 1396 nvl = fnvlist_alloc(); 1397 fnvlist_add_boolean(nvl, argv[0]); 1398 1399 err = lzc_destroy_bookmarks(nvl, NULL); 1400 if (err != 0) { 1401 (void) zfs_standard_error(g_zfs, err, 1402 "cannot destroy bookmark"); 1403 } 1404 1405 nvlist_free(cb.cb_nvl); 1406 1407 return (err); 1408 } else { 1409 /* Open the given dataset */ 1410 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1411 return (1); 1412 1413 cb.cb_target = zhp; 1414 1415 /* 1416 * Perform an explicit check for pools before going any further. 1417 */ 1418 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1419 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1420 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1421 "operation does not apply to pools\n"), 1422 zfs_get_name(zhp)); 1423 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1424 "%s' to destroy all datasets in the pool\n"), 1425 zfs_get_name(zhp)); 1426 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1427 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1428 rv = 1; 1429 goto out; 1430 } 1431 1432 /* 1433 * Check for any dependents and/or clones. 1434 */ 1435 cb.cb_first = B_TRUE; 1436 if (!cb.cb_doclones && 1437 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1438 &cb) != 0) { 1439 rv = 1; 1440 goto out; 1441 } 1442 1443 if (cb.cb_error) { 1444 rv = 1; 1445 goto out; 1446 } 1447 1448 cb.cb_batchedsnaps = fnvlist_alloc(); 1449 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1450 &cb) != 0) { 1451 rv = 1; 1452 goto out; 1453 } 1454 1455 /* 1456 * Do the real thing. The callback will close the 1457 * handle regardless of whether it succeeds or not. 1458 */ 1459 err = destroy_callback(zhp, &cb); 1460 zhp = NULL; 1461 if (err == 0) { 1462 err = zfs_destroy_snaps_nvl(g_zfs, 1463 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1464 } 1465 if (err != 0) 1466 rv = 1; 1467 } 1468 1469 out: 1470 fnvlist_free(cb.cb_batchedsnaps); 1471 fnvlist_free(cb.cb_nvl); 1472 if (zhp != NULL) 1473 zfs_close(zhp); 1474 return (rv); 1475 } 1476 1477 static boolean_t 1478 is_recvd_column(zprop_get_cbdata_t *cbp) 1479 { 1480 int i; 1481 zfs_get_column_t col; 1482 1483 for (i = 0; i < ZFS_GET_NCOLS && 1484 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1485 if (col == GET_COL_RECVD) 1486 return (B_TRUE); 1487 return (B_FALSE); 1488 } 1489 1490 /* 1491 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1492 * < all | property[,property]... > < fs | snap | vol > ... 1493 * 1494 * -r recurse over any child datasets 1495 * -H scripted mode. Headers are stripped, and fields are separated 1496 * by tabs instead of spaces. 1497 * -o Set of fields to display. One of "name,property,value, 1498 * received,source". Default is "name,property,value,source". 1499 * "all" is an alias for all five. 1500 * -s Set of sources to allow. One of 1501 * "local,default,inherited,received,temporary,none". Default is 1502 * all six. 1503 * -p Display values in parsable (literal) format. 1504 * 1505 * Prints properties for the given datasets. The user can control which 1506 * columns to display as well as which property types to allow. 1507 */ 1508 1509 /* 1510 * Invoked to display the properties for a single dataset. 1511 */ 1512 static int 1513 get_callback(zfs_handle_t *zhp, void *data) 1514 { 1515 char buf[ZFS_MAXPROPLEN]; 1516 char rbuf[ZFS_MAXPROPLEN]; 1517 zprop_source_t sourcetype; 1518 char source[ZFS_MAX_DATASET_NAME_LEN]; 1519 zprop_get_cbdata_t *cbp = data; 1520 nvlist_t *user_props = zfs_get_user_props(zhp); 1521 zprop_list_t *pl = cbp->cb_proplist; 1522 nvlist_t *propval; 1523 char *strval; 1524 char *sourceval; 1525 boolean_t received = is_recvd_column(cbp); 1526 1527 for (; pl != NULL; pl = pl->pl_next) { 1528 char *recvdval = NULL; 1529 /* 1530 * Skip the special fake placeholder. This will also skip over 1531 * the name property when 'all' is specified. 1532 */ 1533 if (pl->pl_prop == ZFS_PROP_NAME && 1534 pl == cbp->cb_proplist) 1535 continue; 1536 1537 if (pl->pl_prop != ZPROP_INVAL) { 1538 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1539 sizeof (buf), &sourcetype, source, 1540 sizeof (source), 1541 cbp->cb_literal) != 0) { 1542 if (pl->pl_all) 1543 continue; 1544 if (!zfs_prop_valid_for_type(pl->pl_prop, 1545 ZFS_TYPE_DATASET)) { 1546 (void) fprintf(stderr, 1547 gettext("No such property '%s'\n"), 1548 zfs_prop_to_name(pl->pl_prop)); 1549 continue; 1550 } 1551 sourcetype = ZPROP_SRC_NONE; 1552 (void) strlcpy(buf, "-", sizeof (buf)); 1553 } 1554 1555 if (received && (zfs_prop_get_recvd(zhp, 1556 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1557 cbp->cb_literal) == 0)) 1558 recvdval = rbuf; 1559 1560 zprop_print_one_property(zfs_get_name(zhp), cbp, 1561 zfs_prop_to_name(pl->pl_prop), 1562 buf, sourcetype, source, recvdval); 1563 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1564 sourcetype = ZPROP_SRC_LOCAL; 1565 1566 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1567 buf, sizeof (buf), cbp->cb_literal) != 0) { 1568 sourcetype = ZPROP_SRC_NONE; 1569 (void) strlcpy(buf, "-", sizeof (buf)); 1570 } 1571 1572 zprop_print_one_property(zfs_get_name(zhp), cbp, 1573 pl->pl_user_prop, buf, sourcetype, source, NULL); 1574 } else if (zfs_prop_written(pl->pl_user_prop)) { 1575 sourcetype = ZPROP_SRC_LOCAL; 1576 1577 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1578 buf, sizeof (buf), cbp->cb_literal) != 0) { 1579 sourcetype = ZPROP_SRC_NONE; 1580 (void) strlcpy(buf, "-", sizeof (buf)); 1581 } 1582 1583 zprop_print_one_property(zfs_get_name(zhp), cbp, 1584 pl->pl_user_prop, buf, sourcetype, source, NULL); 1585 } else { 1586 if (nvlist_lookup_nvlist(user_props, 1587 pl->pl_user_prop, &propval) != 0) { 1588 if (pl->pl_all) 1589 continue; 1590 sourcetype = ZPROP_SRC_NONE; 1591 strval = "-"; 1592 } else { 1593 verify(nvlist_lookup_string(propval, 1594 ZPROP_VALUE, &strval) == 0); 1595 verify(nvlist_lookup_string(propval, 1596 ZPROP_SOURCE, &sourceval) == 0); 1597 1598 if (strcmp(sourceval, 1599 zfs_get_name(zhp)) == 0) { 1600 sourcetype = ZPROP_SRC_LOCAL; 1601 } else if (strcmp(sourceval, 1602 ZPROP_SOURCE_VAL_RECVD) == 0) { 1603 sourcetype = ZPROP_SRC_RECEIVED; 1604 } else { 1605 sourcetype = ZPROP_SRC_INHERITED; 1606 (void) strlcpy(source, 1607 sourceval, sizeof (source)); 1608 } 1609 } 1610 1611 if (received && (zfs_prop_get_recvd(zhp, 1612 pl->pl_user_prop, rbuf, sizeof (rbuf), 1613 cbp->cb_literal) == 0)) 1614 recvdval = rbuf; 1615 1616 zprop_print_one_property(zfs_get_name(zhp), cbp, 1617 pl->pl_user_prop, strval, sourcetype, 1618 source, recvdval); 1619 } 1620 } 1621 1622 return (0); 1623 } 1624 1625 static int 1626 zfs_do_get(int argc, char **argv) 1627 { 1628 zprop_get_cbdata_t cb = { 0 }; 1629 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1630 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1631 char *value, *fields; 1632 int ret = 0; 1633 int limit = 0; 1634 zprop_list_t fake_name = { 0 }; 1635 1636 /* 1637 * Set up default columns and sources. 1638 */ 1639 cb.cb_sources = ZPROP_SRC_ALL; 1640 cb.cb_columns[0] = GET_COL_NAME; 1641 cb.cb_columns[1] = GET_COL_PROPERTY; 1642 cb.cb_columns[2] = GET_COL_VALUE; 1643 cb.cb_columns[3] = GET_COL_SOURCE; 1644 cb.cb_type = ZFS_TYPE_DATASET; 1645 1646 /* check options */ 1647 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1648 switch (c) { 1649 case 'p': 1650 cb.cb_literal = B_TRUE; 1651 break; 1652 case 'd': 1653 limit = parse_depth(optarg, &flags); 1654 break; 1655 case 'r': 1656 flags |= ZFS_ITER_RECURSE; 1657 break; 1658 case 'H': 1659 cb.cb_scripted = B_TRUE; 1660 break; 1661 case ':': 1662 (void) fprintf(stderr, gettext("missing argument for " 1663 "'%c' option\n"), optopt); 1664 usage(B_FALSE); 1665 break; 1666 case 'o': 1667 /* 1668 * Process the set of columns to display. We zero out 1669 * the structure to give us a blank slate. 1670 */ 1671 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1672 i = 0; 1673 while (*optarg != '\0') { 1674 static char *col_subopts[] = 1675 { "name", "property", "value", "received", 1676 "source", "all", NULL }; 1677 1678 if (i == ZFS_GET_NCOLS) { 1679 (void) fprintf(stderr, gettext("too " 1680 "many fields given to -o " 1681 "option\n")); 1682 usage(B_FALSE); 1683 } 1684 1685 switch (getsubopt(&optarg, col_subopts, 1686 &value)) { 1687 case 0: 1688 cb.cb_columns[i++] = GET_COL_NAME; 1689 break; 1690 case 1: 1691 cb.cb_columns[i++] = GET_COL_PROPERTY; 1692 break; 1693 case 2: 1694 cb.cb_columns[i++] = GET_COL_VALUE; 1695 break; 1696 case 3: 1697 cb.cb_columns[i++] = GET_COL_RECVD; 1698 flags |= ZFS_ITER_RECVD_PROPS; 1699 break; 1700 case 4: 1701 cb.cb_columns[i++] = GET_COL_SOURCE; 1702 break; 1703 case 5: 1704 if (i > 0) { 1705 (void) fprintf(stderr, 1706 gettext("\"all\" conflicts " 1707 "with specific fields " 1708 "given to -o option\n")); 1709 usage(B_FALSE); 1710 } 1711 cb.cb_columns[0] = GET_COL_NAME; 1712 cb.cb_columns[1] = GET_COL_PROPERTY; 1713 cb.cb_columns[2] = GET_COL_VALUE; 1714 cb.cb_columns[3] = GET_COL_RECVD; 1715 cb.cb_columns[4] = GET_COL_SOURCE; 1716 flags |= ZFS_ITER_RECVD_PROPS; 1717 i = ZFS_GET_NCOLS; 1718 break; 1719 default: 1720 (void) fprintf(stderr, 1721 gettext("invalid column name " 1722 "'%s'\n"), value); 1723 usage(B_FALSE); 1724 } 1725 } 1726 break; 1727 1728 case 's': 1729 cb.cb_sources = 0; 1730 while (*optarg != '\0') { 1731 static char *source_subopts[] = { 1732 "local", "default", "inherited", 1733 "received", "temporary", "none", 1734 NULL }; 1735 1736 switch (getsubopt(&optarg, source_subopts, 1737 &value)) { 1738 case 0: 1739 cb.cb_sources |= ZPROP_SRC_LOCAL; 1740 break; 1741 case 1: 1742 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1743 break; 1744 case 2: 1745 cb.cb_sources |= ZPROP_SRC_INHERITED; 1746 break; 1747 case 3: 1748 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1749 break; 1750 case 4: 1751 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1752 break; 1753 case 5: 1754 cb.cb_sources |= ZPROP_SRC_NONE; 1755 break; 1756 default: 1757 (void) fprintf(stderr, 1758 gettext("invalid source " 1759 "'%s'\n"), value); 1760 usage(B_FALSE); 1761 } 1762 } 1763 break; 1764 1765 case 't': 1766 types = 0; 1767 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1768 while (*optarg != '\0') { 1769 static char *type_subopts[] = { "filesystem", 1770 "volume", "snapshot", "bookmark", 1771 "all", NULL }; 1772 1773 switch (getsubopt(&optarg, type_subopts, 1774 &value)) { 1775 case 0: 1776 types |= ZFS_TYPE_FILESYSTEM; 1777 break; 1778 case 1: 1779 types |= ZFS_TYPE_VOLUME; 1780 break; 1781 case 2: 1782 types |= ZFS_TYPE_SNAPSHOT; 1783 break; 1784 case 3: 1785 types |= ZFS_TYPE_BOOKMARK; 1786 break; 1787 case 4: 1788 types = ZFS_TYPE_DATASET | 1789 ZFS_TYPE_BOOKMARK; 1790 break; 1791 1792 default: 1793 (void) fprintf(stderr, 1794 gettext("invalid type '%s'\n"), 1795 value); 1796 usage(B_FALSE); 1797 } 1798 } 1799 break; 1800 1801 case '?': 1802 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1803 optopt); 1804 usage(B_FALSE); 1805 } 1806 } 1807 1808 argc -= optind; 1809 argv += optind; 1810 1811 if (argc < 1) { 1812 (void) fprintf(stderr, gettext("missing property " 1813 "argument\n")); 1814 usage(B_FALSE); 1815 } 1816 1817 fields = argv[0]; 1818 1819 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1820 != 0) 1821 usage(B_FALSE); 1822 1823 argc--; 1824 argv++; 1825 1826 /* 1827 * As part of zfs_expand_proplist(), we keep track of the maximum column 1828 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1829 * need to know the maximum name length. However, the user likely did 1830 * not specify 'name' as one of the properties to fetch, so we need to 1831 * make sure we always include at least this property for 1832 * print_get_headers() to work properly. 1833 */ 1834 if (cb.cb_proplist != NULL) { 1835 fake_name.pl_prop = ZFS_PROP_NAME; 1836 fake_name.pl_width = strlen(gettext("NAME")); 1837 fake_name.pl_next = cb.cb_proplist; 1838 cb.cb_proplist = &fake_name; 1839 } 1840 1841 cb.cb_first = B_TRUE; 1842 1843 /* run for each object */ 1844 ret = zfs_for_each(argc, argv, flags, types, NULL, 1845 &cb.cb_proplist, limit, get_callback, &cb); 1846 1847 if (cb.cb_proplist == &fake_name) 1848 zprop_free_list(fake_name.pl_next); 1849 else 1850 zprop_free_list(cb.cb_proplist); 1851 1852 return (ret); 1853 } 1854 1855 /* 1856 * inherit [-rS] <property> <fs|vol> ... 1857 * 1858 * -r Recurse over all children 1859 * -S Revert to received value, if any 1860 * 1861 * For each dataset specified on the command line, inherit the given property 1862 * from its parent. Inheriting a property at the pool level will cause it to 1863 * use the default value. The '-r' flag will recurse over all children, and is 1864 * useful for setting a property on a hierarchy-wide basis, regardless of any 1865 * local modifications for each dataset. 1866 */ 1867 1868 typedef struct inherit_cbdata { 1869 const char *cb_propname; 1870 boolean_t cb_received; 1871 } inherit_cbdata_t; 1872 1873 static int 1874 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1875 { 1876 inherit_cbdata_t *cb = data; 1877 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1878 1879 /* 1880 * If we're doing it recursively, then ignore properties that 1881 * are not valid for this type of dataset. 1882 */ 1883 if (prop != ZPROP_INVAL && 1884 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1885 return (0); 1886 1887 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1888 } 1889 1890 static int 1891 inherit_cb(zfs_handle_t *zhp, void *data) 1892 { 1893 inherit_cbdata_t *cb = data; 1894 1895 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1896 } 1897 1898 static int 1899 zfs_do_inherit(int argc, char **argv) 1900 { 1901 int c; 1902 zfs_prop_t prop; 1903 inherit_cbdata_t cb = { 0 }; 1904 char *propname; 1905 int ret = 0; 1906 int flags = 0; 1907 boolean_t received = B_FALSE; 1908 1909 /* check options */ 1910 while ((c = getopt(argc, argv, "rS")) != -1) { 1911 switch (c) { 1912 case 'r': 1913 flags |= ZFS_ITER_RECURSE; 1914 break; 1915 case 'S': 1916 received = B_TRUE; 1917 break; 1918 case '?': 1919 default: 1920 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1921 optopt); 1922 usage(B_FALSE); 1923 } 1924 } 1925 1926 argc -= optind; 1927 argv += optind; 1928 1929 /* check number of arguments */ 1930 if (argc < 1) { 1931 (void) fprintf(stderr, gettext("missing property argument\n")); 1932 usage(B_FALSE); 1933 } 1934 if (argc < 2) { 1935 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1936 usage(B_FALSE); 1937 } 1938 1939 propname = argv[0]; 1940 argc--; 1941 argv++; 1942 1943 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1944 if (zfs_prop_readonly(prop)) { 1945 (void) fprintf(stderr, gettext( 1946 "%s property is read-only\n"), 1947 propname); 1948 return (1); 1949 } 1950 if (!zfs_prop_inheritable(prop) && !received) { 1951 (void) fprintf(stderr, gettext("'%s' property cannot " 1952 "be inherited\n"), propname); 1953 if (prop == ZFS_PROP_QUOTA || 1954 prop == ZFS_PROP_RESERVATION || 1955 prop == ZFS_PROP_REFQUOTA || 1956 prop == ZFS_PROP_REFRESERVATION) { 1957 (void) fprintf(stderr, gettext("use 'zfs set " 1958 "%s=none' to clear\n"), propname); 1959 (void) fprintf(stderr, gettext("use 'zfs " 1960 "inherit -S %s' to revert to received " 1961 "value\n"), propname); 1962 } 1963 return (1); 1964 } 1965 if (received && (prop == ZFS_PROP_VOLSIZE || 1966 prop == ZFS_PROP_VERSION)) { 1967 (void) fprintf(stderr, gettext("'%s' property cannot " 1968 "be reverted to a received value\n"), propname); 1969 return (1); 1970 } 1971 } else if (!zfs_prop_user(propname)) { 1972 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1973 propname); 1974 usage(B_FALSE); 1975 } 1976 1977 cb.cb_propname = propname; 1978 cb.cb_received = received; 1979 1980 if (flags & ZFS_ITER_RECURSE) { 1981 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1982 NULL, NULL, 0, inherit_recurse_cb, &cb); 1983 } else { 1984 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1985 NULL, NULL, 0, inherit_cb, &cb); 1986 } 1987 1988 return (ret); 1989 } 1990 1991 typedef struct upgrade_cbdata { 1992 uint64_t cb_numupgraded; 1993 uint64_t cb_numsamegraded; 1994 uint64_t cb_numfailed; 1995 uint64_t cb_version; 1996 boolean_t cb_newer; 1997 boolean_t cb_foundone; 1998 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1999 } upgrade_cbdata_t; 2000 2001 static int 2002 same_pool(zfs_handle_t *zhp, const char *name) 2003 { 2004 int len1 = strcspn(name, "/@"); 2005 const char *zhname = zfs_get_name(zhp); 2006 int len2 = strcspn(zhname, "/@"); 2007 2008 if (len1 != len2) 2009 return (B_FALSE); 2010 return (strncmp(name, zhname, len1) == 0); 2011 } 2012 2013 static int 2014 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2015 { 2016 upgrade_cbdata_t *cb = data; 2017 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2018 2019 /* list if it's old/new */ 2020 if ((!cb->cb_newer && version < ZPL_VERSION) || 2021 (cb->cb_newer && version > ZPL_VERSION)) { 2022 char *str; 2023 if (cb->cb_newer) { 2024 str = gettext("The following filesystems are " 2025 "formatted using a newer software version and\n" 2026 "cannot be accessed on the current system.\n\n"); 2027 } else { 2028 str = gettext("The following filesystems are " 2029 "out of date, and can be upgraded. After being\n" 2030 "upgraded, these filesystems (and any 'zfs send' " 2031 "streams generated from\n" 2032 "subsequent snapshots) will no longer be " 2033 "accessible by older software versions.\n\n"); 2034 } 2035 2036 if (!cb->cb_foundone) { 2037 (void) puts(str); 2038 (void) printf(gettext("VER FILESYSTEM\n")); 2039 (void) printf(gettext("--- ------------\n")); 2040 cb->cb_foundone = B_TRUE; 2041 } 2042 2043 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2044 } 2045 2046 return (0); 2047 } 2048 2049 static int 2050 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2051 { 2052 upgrade_cbdata_t *cb = data; 2053 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2054 int needed_spa_version; 2055 int spa_version; 2056 2057 if (zfs_spa_version(zhp, &spa_version) < 0) 2058 return (-1); 2059 2060 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2061 2062 if (needed_spa_version < 0) 2063 return (-1); 2064 2065 if (spa_version < needed_spa_version) { 2066 /* can't upgrade */ 2067 (void) printf(gettext("%s: can not be " 2068 "upgraded; the pool version needs to first " 2069 "be upgraded\nto version %d\n\n"), 2070 zfs_get_name(zhp), needed_spa_version); 2071 cb->cb_numfailed++; 2072 return (0); 2073 } 2074 2075 /* upgrade */ 2076 if (version < cb->cb_version) { 2077 char verstr[16]; 2078 (void) snprintf(verstr, sizeof (verstr), 2079 "%llu", cb->cb_version); 2080 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2081 /* 2082 * If they did "zfs upgrade -a", then we could 2083 * be doing ioctls to different pools. We need 2084 * to log this history once to each pool, and bypass 2085 * the normal history logging that happens in main(). 2086 */ 2087 (void) zpool_log_history(g_zfs, history_str); 2088 log_history = B_FALSE; 2089 } 2090 if (zfs_prop_set(zhp, "version", verstr) == 0) 2091 cb->cb_numupgraded++; 2092 else 2093 cb->cb_numfailed++; 2094 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2095 } else if (version > cb->cb_version) { 2096 /* can't downgrade */ 2097 (void) printf(gettext("%s: can not be downgraded; " 2098 "it is already at version %u\n"), 2099 zfs_get_name(zhp), version); 2100 cb->cb_numfailed++; 2101 } else { 2102 cb->cb_numsamegraded++; 2103 } 2104 return (0); 2105 } 2106 2107 /* 2108 * zfs upgrade 2109 * zfs upgrade -v 2110 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2111 */ 2112 static int 2113 zfs_do_upgrade(int argc, char **argv) 2114 { 2115 boolean_t all = B_FALSE; 2116 boolean_t showversions = B_FALSE; 2117 int ret = 0; 2118 upgrade_cbdata_t cb = { 0 }; 2119 char c; 2120 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2121 2122 /* check options */ 2123 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2124 switch (c) { 2125 case 'r': 2126 flags |= ZFS_ITER_RECURSE; 2127 break; 2128 case 'v': 2129 showversions = B_TRUE; 2130 break; 2131 case 'V': 2132 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2133 optarg, &cb.cb_version) != 0) { 2134 (void) fprintf(stderr, 2135 gettext("invalid version %s\n"), optarg); 2136 usage(B_FALSE); 2137 } 2138 break; 2139 case 'a': 2140 all = B_TRUE; 2141 break; 2142 case '?': 2143 default: 2144 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2145 optopt); 2146 usage(B_FALSE); 2147 } 2148 } 2149 2150 argc -= optind; 2151 argv += optind; 2152 2153 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2154 usage(B_FALSE); 2155 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2156 cb.cb_version || argc)) 2157 usage(B_FALSE); 2158 if ((all || argc) && (showversions)) 2159 usage(B_FALSE); 2160 if (all && argc) 2161 usage(B_FALSE); 2162 2163 if (showversions) { 2164 /* Show info on available versions. */ 2165 (void) printf(gettext("The following filesystem versions are " 2166 "supported:\n\n")); 2167 (void) printf(gettext("VER DESCRIPTION\n")); 2168 (void) printf("--- -----------------------------------------" 2169 "---------------\n"); 2170 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2171 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2172 (void) printf(gettext(" 3 Case insensitive and filesystem " 2173 "user identifier (FUID)\n")); 2174 (void) printf(gettext(" 4 userquota, groupquota " 2175 "properties\n")); 2176 (void) printf(gettext(" 5 System attributes\n")); 2177 (void) printf(gettext("\nFor more information on a particular " 2178 "version, including supported releases,\n")); 2179 (void) printf("see the ZFS Administration Guide.\n\n"); 2180 ret = 0; 2181 } else if (argc || all) { 2182 /* Upgrade filesystems */ 2183 if (cb.cb_version == 0) 2184 cb.cb_version = ZPL_VERSION; 2185 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2186 NULL, NULL, 0, upgrade_set_callback, &cb); 2187 (void) printf(gettext("%llu filesystems upgraded\n"), 2188 cb.cb_numupgraded); 2189 if (cb.cb_numsamegraded) { 2190 (void) printf(gettext("%llu filesystems already at " 2191 "this version\n"), 2192 cb.cb_numsamegraded); 2193 } 2194 if (cb.cb_numfailed != 0) 2195 ret = 1; 2196 } else { 2197 /* List old-version filesytems */ 2198 boolean_t found; 2199 (void) printf(gettext("This system is currently running " 2200 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2201 2202 flags |= ZFS_ITER_RECURSE; 2203 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2204 NULL, NULL, 0, upgrade_list_callback, &cb); 2205 2206 found = cb.cb_foundone; 2207 cb.cb_foundone = B_FALSE; 2208 cb.cb_newer = B_TRUE; 2209 2210 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2211 NULL, NULL, 0, upgrade_list_callback, &cb); 2212 2213 if (!cb.cb_foundone && !found) { 2214 (void) printf(gettext("All filesystems are " 2215 "formatted with the current version.\n")); 2216 } 2217 } 2218 2219 return (ret); 2220 } 2221 2222 /* 2223 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2224 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2225 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2226 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2227 * 2228 * -H Scripted mode; elide headers and separate columns by tabs. 2229 * -i Translate SID to POSIX ID. 2230 * -n Print numeric ID instead of user/group name. 2231 * -o Control which fields to display. 2232 * -p Use exact (parsable) numeric output. 2233 * -s Specify sort columns, descending order. 2234 * -S Specify sort columns, ascending order. 2235 * -t Control which object types to display. 2236 * 2237 * Displays space consumed by, and quotas on, each user in the specified 2238 * filesystem or snapshot. 2239 */ 2240 2241 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2242 enum us_field_types { 2243 USFIELD_TYPE, 2244 USFIELD_NAME, 2245 USFIELD_USED, 2246 USFIELD_QUOTA 2247 }; 2248 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2249 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2250 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2251 2252 #define USTYPE_PSX_GRP (1 << 0) 2253 #define USTYPE_PSX_USR (1 << 1) 2254 #define USTYPE_SMB_GRP (1 << 2) 2255 #define USTYPE_SMB_USR (1 << 3) 2256 #define USTYPE_ALL \ 2257 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2258 2259 static int us_type_bits[] = { 2260 USTYPE_PSX_GRP, 2261 USTYPE_PSX_USR, 2262 USTYPE_SMB_GRP, 2263 USTYPE_SMB_USR, 2264 USTYPE_ALL 2265 }; 2266 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2267 "smbuser", "all" }; 2268 2269 typedef struct us_node { 2270 nvlist_t *usn_nvl; 2271 uu_avl_node_t usn_avlnode; 2272 uu_list_node_t usn_listnode; 2273 } us_node_t; 2274 2275 typedef struct us_cbdata { 2276 nvlist_t **cb_nvlp; 2277 uu_avl_pool_t *cb_avl_pool; 2278 uu_avl_t *cb_avl; 2279 boolean_t cb_numname; 2280 boolean_t cb_nicenum; 2281 boolean_t cb_sid2posix; 2282 zfs_userquota_prop_t cb_prop; 2283 zfs_sort_column_t *cb_sortcol; 2284 size_t cb_width[USFIELD_LAST]; 2285 } us_cbdata_t; 2286 2287 static boolean_t us_populated = B_FALSE; 2288 2289 typedef struct { 2290 zfs_sort_column_t *si_sortcol; 2291 boolean_t si_numname; 2292 } us_sort_info_t; 2293 2294 static int 2295 us_field_index(char *field) 2296 { 2297 int i; 2298 2299 for (i = 0; i < USFIELD_LAST; i++) { 2300 if (strcmp(field, us_field_names[i]) == 0) 2301 return (i); 2302 } 2303 2304 return (-1); 2305 } 2306 2307 static int 2308 us_compare(const void *larg, const void *rarg, void *unused) 2309 { 2310 const us_node_t *l = larg; 2311 const us_node_t *r = rarg; 2312 us_sort_info_t *si = (us_sort_info_t *)unused; 2313 zfs_sort_column_t *sortcol = si->si_sortcol; 2314 boolean_t numname = si->si_numname; 2315 nvlist_t *lnvl = l->usn_nvl; 2316 nvlist_t *rnvl = r->usn_nvl; 2317 int rc = 0; 2318 boolean_t lvb, rvb; 2319 2320 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2321 char *lvstr = ""; 2322 char *rvstr = ""; 2323 uint32_t lv32 = 0; 2324 uint32_t rv32 = 0; 2325 uint64_t lv64 = 0; 2326 uint64_t rv64 = 0; 2327 zfs_prop_t prop = sortcol->sc_prop; 2328 const char *propname = NULL; 2329 boolean_t reverse = sortcol->sc_reverse; 2330 2331 switch (prop) { 2332 case ZFS_PROP_TYPE: 2333 propname = "type"; 2334 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2335 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2336 if (rv32 != lv32) 2337 rc = (rv32 < lv32) ? 1 : -1; 2338 break; 2339 case ZFS_PROP_NAME: 2340 propname = "name"; 2341 if (numname) { 2342 (void) nvlist_lookup_uint64(lnvl, propname, 2343 &lv64); 2344 (void) nvlist_lookup_uint64(rnvl, propname, 2345 &rv64); 2346 if (rv64 != lv64) 2347 rc = (rv64 < lv64) ? 1 : -1; 2348 } else { 2349 (void) nvlist_lookup_string(lnvl, propname, 2350 &lvstr); 2351 (void) nvlist_lookup_string(rnvl, propname, 2352 &rvstr); 2353 rc = strcmp(lvstr, rvstr); 2354 } 2355 break; 2356 case ZFS_PROP_USED: 2357 case ZFS_PROP_QUOTA: 2358 if (!us_populated) 2359 break; 2360 if (prop == ZFS_PROP_USED) 2361 propname = "used"; 2362 else 2363 propname = "quota"; 2364 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2365 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2366 if (rv64 != lv64) 2367 rc = (rv64 < lv64) ? 1 : -1; 2368 break; 2369 2370 default: 2371 break; 2372 } 2373 2374 if (rc != 0) { 2375 if (rc < 0) 2376 return (reverse ? 1 : -1); 2377 else 2378 return (reverse ? -1 : 1); 2379 } 2380 } 2381 2382 /* 2383 * If entries still seem to be the same, check if they are of the same 2384 * type (smbentity is added only if we are doing SID to POSIX ID 2385 * translation where we can have duplicate type/name combinations). 2386 */ 2387 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2388 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2389 lvb != rvb) 2390 return (lvb < rvb ? -1 : 1); 2391 2392 return (0); 2393 } 2394 2395 static inline const char * 2396 us_type2str(unsigned field_type) 2397 { 2398 switch (field_type) { 2399 case USTYPE_PSX_USR: 2400 return ("POSIX User"); 2401 case USTYPE_PSX_GRP: 2402 return ("POSIX Group"); 2403 case USTYPE_SMB_USR: 2404 return ("SMB User"); 2405 case USTYPE_SMB_GRP: 2406 return ("SMB Group"); 2407 default: 2408 return ("Undefined"); 2409 } 2410 } 2411 2412 static int 2413 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2414 { 2415 us_cbdata_t *cb = (us_cbdata_t *)arg; 2416 zfs_userquota_prop_t prop = cb->cb_prop; 2417 char *name = NULL; 2418 char *propname; 2419 char sizebuf[32]; 2420 us_node_t *node; 2421 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2422 uu_avl_t *avl = cb->cb_avl; 2423 uu_avl_index_t idx; 2424 nvlist_t *props; 2425 us_node_t *n; 2426 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2427 unsigned type = 0; 2428 const char *typestr; 2429 size_t namelen; 2430 size_t typelen; 2431 size_t sizelen; 2432 int typeidx, nameidx, sizeidx; 2433 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2434 boolean_t smbentity = B_FALSE; 2435 2436 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2437 nomem(); 2438 node = safe_malloc(sizeof (us_node_t)); 2439 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2440 node->usn_nvl = props; 2441 2442 if (domain != NULL && domain[0] != '\0') { 2443 /* SMB */ 2444 char sid[MAXNAMELEN + 32]; 2445 uid_t id; 2446 int err; 2447 int flag = IDMAP_REQ_FLG_USE_CACHE; 2448 2449 smbentity = B_TRUE; 2450 2451 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2452 2453 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2454 type = USTYPE_SMB_GRP; 2455 err = sid_to_id(sid, B_FALSE, &id); 2456 } else { 2457 type = USTYPE_SMB_USR; 2458 err = sid_to_id(sid, B_TRUE, &id); 2459 } 2460 2461 if (err == 0) { 2462 rid = id; 2463 if (!cb->cb_sid2posix) { 2464 if (type == USTYPE_SMB_USR) { 2465 (void) idmap_getwinnamebyuid(rid, flag, 2466 &name, NULL); 2467 } else { 2468 (void) idmap_getwinnamebygid(rid, flag, 2469 &name, NULL); 2470 } 2471 if (name == NULL) 2472 name = sid; 2473 } 2474 } 2475 } 2476 2477 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2478 /* POSIX or -i */ 2479 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2480 type = USTYPE_PSX_GRP; 2481 if (!cb->cb_numname) { 2482 struct group *g; 2483 2484 if ((g = getgrgid(rid)) != NULL) 2485 name = g->gr_name; 2486 } 2487 } else { 2488 type = USTYPE_PSX_USR; 2489 if (!cb->cb_numname) { 2490 struct passwd *p; 2491 2492 if ((p = getpwuid(rid)) != NULL) 2493 name = p->pw_name; 2494 } 2495 } 2496 } 2497 2498 /* 2499 * Make sure that the type/name combination is unique when doing 2500 * SID to POSIX ID translation (hence changing the type from SMB to 2501 * POSIX). 2502 */ 2503 if (cb->cb_sid2posix && 2504 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2505 nomem(); 2506 2507 /* Calculate/update width of TYPE field */ 2508 typestr = us_type2str(type); 2509 typelen = strlen(gettext(typestr)); 2510 typeidx = us_field_index("type"); 2511 if (typelen > cb->cb_width[typeidx]) 2512 cb->cb_width[typeidx] = typelen; 2513 if (nvlist_add_uint32(props, "type", type) != 0) 2514 nomem(); 2515 2516 /* Calculate/update width of NAME field */ 2517 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2518 if (nvlist_add_uint64(props, "name", rid) != 0) 2519 nomem(); 2520 namelen = snprintf(NULL, 0, "%u", rid); 2521 } else { 2522 if (nvlist_add_string(props, "name", name) != 0) 2523 nomem(); 2524 namelen = strlen(name); 2525 } 2526 nameidx = us_field_index("name"); 2527 if (namelen > cb->cb_width[nameidx]) 2528 cb->cb_width[nameidx] = namelen; 2529 2530 /* 2531 * Check if this type/name combination is in the list and update it; 2532 * otherwise add new node to the list. 2533 */ 2534 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2535 uu_avl_insert(avl, node, idx); 2536 } else { 2537 nvlist_free(props); 2538 free(node); 2539 node = n; 2540 props = node->usn_nvl; 2541 } 2542 2543 /* Calculate/update width of USED/QUOTA fields */ 2544 if (cb->cb_nicenum) 2545 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2546 else 2547 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2548 sizelen = strlen(sizebuf); 2549 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2550 propname = "used"; 2551 if (!nvlist_exists(props, "quota")) 2552 (void) nvlist_add_uint64(props, "quota", 0); 2553 } else { 2554 propname = "quota"; 2555 if (!nvlist_exists(props, "used")) 2556 (void) nvlist_add_uint64(props, "used", 0); 2557 } 2558 sizeidx = us_field_index(propname); 2559 if (sizelen > cb->cb_width[sizeidx]) 2560 cb->cb_width[sizeidx] = sizelen; 2561 2562 if (nvlist_add_uint64(props, propname, space) != 0) 2563 nomem(); 2564 2565 return (0); 2566 } 2567 2568 static void 2569 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2570 size_t *width, us_node_t *node) 2571 { 2572 nvlist_t *nvl = node->usn_nvl; 2573 char valstr[MAXNAMELEN]; 2574 boolean_t first = B_TRUE; 2575 int cfield = 0; 2576 int field; 2577 uint32_t ustype; 2578 2579 /* Check type */ 2580 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2581 if (!(ustype & types)) 2582 return; 2583 2584 while ((field = fields[cfield]) != USFIELD_LAST) { 2585 nvpair_t *nvp = NULL; 2586 data_type_t type; 2587 uint32_t val32; 2588 uint64_t val64; 2589 char *strval = NULL; 2590 2591 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2592 if (strcmp(nvpair_name(nvp), 2593 us_field_names[field]) == 0) 2594 break; 2595 } 2596 2597 type = nvpair_type(nvp); 2598 switch (type) { 2599 case DATA_TYPE_UINT32: 2600 (void) nvpair_value_uint32(nvp, &val32); 2601 break; 2602 case DATA_TYPE_UINT64: 2603 (void) nvpair_value_uint64(nvp, &val64); 2604 break; 2605 case DATA_TYPE_STRING: 2606 (void) nvpair_value_string(nvp, &strval); 2607 break; 2608 default: 2609 (void) fprintf(stderr, "invalid data type\n"); 2610 } 2611 2612 switch (field) { 2613 case USFIELD_TYPE: 2614 strval = (char *)us_type2str(val32); 2615 break; 2616 case USFIELD_NAME: 2617 if (type == DATA_TYPE_UINT64) { 2618 (void) sprintf(valstr, "%llu", val64); 2619 strval = valstr; 2620 } 2621 break; 2622 case USFIELD_USED: 2623 case USFIELD_QUOTA: 2624 if (type == DATA_TYPE_UINT64) { 2625 if (parsable) { 2626 (void) sprintf(valstr, "%llu", val64); 2627 } else { 2628 zfs_nicenum(val64, valstr, 2629 sizeof (valstr)); 2630 } 2631 if (field == USFIELD_QUOTA && 2632 strcmp(valstr, "0") == 0) 2633 strval = "none"; 2634 else 2635 strval = valstr; 2636 } 2637 break; 2638 } 2639 2640 if (!first) { 2641 if (scripted) 2642 (void) printf("\t"); 2643 else 2644 (void) printf(" "); 2645 } 2646 if (scripted) 2647 (void) printf("%s", strval); 2648 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2649 (void) printf("%-*s", width[field], strval); 2650 else 2651 (void) printf("%*s", width[field], strval); 2652 2653 first = B_FALSE; 2654 cfield++; 2655 } 2656 2657 (void) printf("\n"); 2658 } 2659 2660 static void 2661 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2662 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2663 { 2664 us_node_t *node; 2665 const char *col; 2666 int cfield = 0; 2667 int field; 2668 2669 if (!scripted) { 2670 boolean_t first = B_TRUE; 2671 2672 while ((field = fields[cfield]) != USFIELD_LAST) { 2673 col = gettext(us_field_hdr[field]); 2674 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2675 (void) printf(first ? "%-*s" : " %-*s", 2676 width[field], col); 2677 } else { 2678 (void) printf(first ? "%*s" : " %*s", 2679 width[field], col); 2680 } 2681 first = B_FALSE; 2682 cfield++; 2683 } 2684 (void) printf("\n"); 2685 } 2686 2687 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2688 print_us_node(scripted, parsable, fields, types, width, node); 2689 if (rmnode) 2690 nvlist_free(node->usn_nvl); 2691 } 2692 } 2693 2694 static int 2695 zfs_do_userspace(int argc, char **argv) 2696 { 2697 zfs_handle_t *zhp; 2698 zfs_userquota_prop_t p; 2699 uu_avl_pool_t *avl_pool; 2700 uu_avl_t *avl_tree; 2701 uu_avl_walk_t *walk; 2702 char *delim; 2703 char deffields[] = "type,name,used,quota"; 2704 char *ofield = NULL; 2705 char *tfield = NULL; 2706 int cfield = 0; 2707 int fields[256]; 2708 int i; 2709 boolean_t scripted = B_FALSE; 2710 boolean_t prtnum = B_FALSE; 2711 boolean_t parsable = B_FALSE; 2712 boolean_t sid2posix = B_FALSE; 2713 int ret = 0; 2714 int c; 2715 zfs_sort_column_t *sortcol = NULL; 2716 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2717 us_cbdata_t cb; 2718 us_node_t *node; 2719 us_node_t *rmnode; 2720 uu_list_pool_t *listpool; 2721 uu_list_t *list; 2722 uu_avl_index_t idx = 0; 2723 uu_list_index_t idx2 = 0; 2724 2725 if (argc < 2) 2726 usage(B_FALSE); 2727 2728 if (strcmp(argv[0], "groupspace") == 0) 2729 /* Toggle default group types */ 2730 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2731 2732 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2733 switch (c) { 2734 case 'n': 2735 prtnum = B_TRUE; 2736 break; 2737 case 'H': 2738 scripted = B_TRUE; 2739 break; 2740 case 'p': 2741 parsable = B_TRUE; 2742 break; 2743 case 'o': 2744 ofield = optarg; 2745 break; 2746 case 's': 2747 case 'S': 2748 if (zfs_add_sort_column(&sortcol, optarg, 2749 c == 's' ? B_FALSE : B_TRUE) != 0) { 2750 (void) fprintf(stderr, 2751 gettext("invalid field '%s'\n"), optarg); 2752 usage(B_FALSE); 2753 } 2754 break; 2755 case 't': 2756 tfield = optarg; 2757 break; 2758 case 'i': 2759 sid2posix = B_TRUE; 2760 break; 2761 case ':': 2762 (void) fprintf(stderr, gettext("missing argument for " 2763 "'%c' option\n"), optopt); 2764 usage(B_FALSE); 2765 break; 2766 case '?': 2767 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2768 optopt); 2769 usage(B_FALSE); 2770 } 2771 } 2772 2773 argc -= optind; 2774 argv += optind; 2775 2776 if (argc < 1) { 2777 (void) fprintf(stderr, gettext("missing dataset name\n")); 2778 usage(B_FALSE); 2779 } 2780 if (argc > 1) { 2781 (void) fprintf(stderr, gettext("too many arguments\n")); 2782 usage(B_FALSE); 2783 } 2784 2785 /* Use default output fields if not specified using -o */ 2786 if (ofield == NULL) 2787 ofield = deffields; 2788 do { 2789 if ((delim = strchr(ofield, ',')) != NULL) 2790 *delim = '\0'; 2791 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2792 (void) fprintf(stderr, gettext("invalid type '%s' " 2793 "for -o option\n"), ofield); 2794 return (-1); 2795 } 2796 if (delim != NULL) 2797 ofield = delim + 1; 2798 } while (delim != NULL); 2799 fields[cfield] = USFIELD_LAST; 2800 2801 /* Override output types (-t option) */ 2802 if (tfield != NULL) { 2803 types = 0; 2804 2805 do { 2806 boolean_t found = B_FALSE; 2807 2808 if ((delim = strchr(tfield, ',')) != NULL) 2809 *delim = '\0'; 2810 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2811 i++) { 2812 if (strcmp(tfield, us_type_names[i]) == 0) { 2813 found = B_TRUE; 2814 types |= us_type_bits[i]; 2815 break; 2816 } 2817 } 2818 if (!found) { 2819 (void) fprintf(stderr, gettext("invalid type " 2820 "'%s' for -t option\n"), tfield); 2821 return (-1); 2822 } 2823 if (delim != NULL) 2824 tfield = delim + 1; 2825 } while (delim != NULL); 2826 } 2827 2828 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2829 return (1); 2830 2831 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2832 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2833 nomem(); 2834 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2835 nomem(); 2836 2837 /* Always add default sorting columns */ 2838 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2839 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2840 2841 cb.cb_sortcol = sortcol; 2842 cb.cb_numname = prtnum; 2843 cb.cb_nicenum = !parsable; 2844 cb.cb_avl_pool = avl_pool; 2845 cb.cb_avl = avl_tree; 2846 cb.cb_sid2posix = sid2posix; 2847 2848 for (i = 0; i < USFIELD_LAST; i++) 2849 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2850 2851 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2852 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2853 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2854 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2855 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2856 continue; 2857 cb.cb_prop = p; 2858 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2859 return (ret); 2860 } 2861 2862 /* Sort the list */ 2863 if ((node = uu_avl_first(avl_tree)) == NULL) 2864 return (0); 2865 2866 us_populated = B_TRUE; 2867 2868 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2869 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2870 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2871 uu_list_node_init(node, &node->usn_listnode, listpool); 2872 2873 while (node != NULL) { 2874 rmnode = node; 2875 node = uu_avl_next(avl_tree, node); 2876 uu_avl_remove(avl_tree, rmnode); 2877 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2878 uu_list_insert(list, rmnode, idx2); 2879 } 2880 2881 for (node = uu_list_first(list); node != NULL; 2882 node = uu_list_next(list, node)) { 2883 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2884 2885 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2886 uu_avl_insert(avl_tree, node, idx); 2887 } 2888 2889 uu_list_destroy(list); 2890 uu_list_pool_destroy(listpool); 2891 2892 /* Print and free node nvlist memory */ 2893 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2894 cb.cb_avl); 2895 2896 zfs_free_sort_columns(sortcol); 2897 2898 /* Clean up the AVL tree */ 2899 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2900 nomem(); 2901 2902 while ((node = uu_avl_walk_next(walk)) != NULL) { 2903 uu_avl_remove(cb.cb_avl, node); 2904 free(node); 2905 } 2906 2907 uu_avl_walk_end(walk); 2908 uu_avl_destroy(avl_tree); 2909 uu_avl_pool_destroy(avl_pool); 2910 2911 return (ret); 2912 } 2913 2914 /* 2915 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2916 * [-t type[,...]] [filesystem|volume|snapshot] ... 2917 * 2918 * -H Scripted mode; elide headers and separate columns by tabs. 2919 * -p Display values in parsable (literal) format. 2920 * -r Recurse over all children. 2921 * -d Limit recursion by depth. 2922 * -o Control which fields to display. 2923 * -s Specify sort columns, descending order. 2924 * -S Specify sort columns, ascending order. 2925 * -t Control which object types to display. 2926 * 2927 * When given no arguments, list all filesystems in the system. 2928 * Otherwise, list the specified datasets, optionally recursing down them if 2929 * '-r' is specified. 2930 */ 2931 typedef struct list_cbdata { 2932 boolean_t cb_first; 2933 boolean_t cb_literal; 2934 boolean_t cb_scripted; 2935 zprop_list_t *cb_proplist; 2936 } list_cbdata_t; 2937 2938 /* 2939 * Given a list of columns to display, output appropriate headers for each one. 2940 */ 2941 static void 2942 print_header(list_cbdata_t *cb) 2943 { 2944 zprop_list_t *pl = cb->cb_proplist; 2945 char headerbuf[ZFS_MAXPROPLEN]; 2946 const char *header; 2947 int i; 2948 boolean_t first = B_TRUE; 2949 boolean_t right_justify; 2950 2951 for (; pl != NULL; pl = pl->pl_next) { 2952 if (!first) { 2953 (void) printf(" "); 2954 } else { 2955 first = B_FALSE; 2956 } 2957 2958 right_justify = B_FALSE; 2959 if (pl->pl_prop != ZPROP_INVAL) { 2960 header = zfs_prop_column_name(pl->pl_prop); 2961 right_justify = zfs_prop_align_right(pl->pl_prop); 2962 } else { 2963 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2964 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2965 headerbuf[i] = '\0'; 2966 header = headerbuf; 2967 } 2968 2969 if (pl->pl_next == NULL && !right_justify) 2970 (void) printf("%s", header); 2971 else if (right_justify) 2972 (void) printf("%*s", pl->pl_width, header); 2973 else 2974 (void) printf("%-*s", pl->pl_width, header); 2975 } 2976 2977 (void) printf("\n"); 2978 } 2979 2980 /* 2981 * Given a dataset and a list of fields, print out all the properties according 2982 * to the described layout. 2983 */ 2984 static void 2985 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2986 { 2987 zprop_list_t *pl = cb->cb_proplist; 2988 boolean_t first = B_TRUE; 2989 char property[ZFS_MAXPROPLEN]; 2990 nvlist_t *userprops = zfs_get_user_props(zhp); 2991 nvlist_t *propval; 2992 char *propstr; 2993 boolean_t right_justify; 2994 2995 for (; pl != NULL; pl = pl->pl_next) { 2996 if (!first) { 2997 if (cb->cb_scripted) 2998 (void) printf("\t"); 2999 else 3000 (void) printf(" "); 3001 } else { 3002 first = B_FALSE; 3003 } 3004 3005 if (pl->pl_prop != ZPROP_INVAL) { 3006 if (zfs_prop_get(zhp, pl->pl_prop, property, 3007 sizeof (property), NULL, NULL, 0, 3008 cb->cb_literal) != 0) 3009 propstr = "-"; 3010 else 3011 propstr = property; 3012 right_justify = zfs_prop_align_right(pl->pl_prop); 3013 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3014 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3015 property, sizeof (property), cb->cb_literal) != 0) 3016 propstr = "-"; 3017 else 3018 propstr = property; 3019 right_justify = B_TRUE; 3020 } else if (zfs_prop_written(pl->pl_user_prop)) { 3021 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3022 property, sizeof (property), cb->cb_literal) != 0) 3023 propstr = "-"; 3024 else 3025 propstr = property; 3026 right_justify = B_TRUE; 3027 } else { 3028 if (nvlist_lookup_nvlist(userprops, 3029 pl->pl_user_prop, &propval) != 0) 3030 propstr = "-"; 3031 else 3032 verify(nvlist_lookup_string(propval, 3033 ZPROP_VALUE, &propstr) == 0); 3034 right_justify = B_FALSE; 3035 } 3036 3037 /* 3038 * If this is being called in scripted mode, or if this is the 3039 * last column and it is left-justified, don't include a width 3040 * format specifier. 3041 */ 3042 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3043 (void) printf("%s", propstr); 3044 else if (right_justify) 3045 (void) printf("%*s", pl->pl_width, propstr); 3046 else 3047 (void) printf("%-*s", pl->pl_width, propstr); 3048 } 3049 3050 (void) printf("\n"); 3051 } 3052 3053 /* 3054 * Generic callback function to list a dataset or snapshot. 3055 */ 3056 static int 3057 list_callback(zfs_handle_t *zhp, void *data) 3058 { 3059 list_cbdata_t *cbp = data; 3060 3061 if (cbp->cb_first) { 3062 if (!cbp->cb_scripted) 3063 print_header(cbp); 3064 cbp->cb_first = B_FALSE; 3065 } 3066 3067 print_dataset(zhp, cbp); 3068 3069 return (0); 3070 } 3071 3072 static int 3073 zfs_do_list(int argc, char **argv) 3074 { 3075 int c; 3076 static char default_fields[] = 3077 "name,used,available,referenced,mountpoint"; 3078 int types = ZFS_TYPE_DATASET; 3079 boolean_t types_specified = B_FALSE; 3080 char *fields = NULL; 3081 list_cbdata_t cb = { 0 }; 3082 char *value; 3083 int limit = 0; 3084 int ret = 0; 3085 zfs_sort_column_t *sortcol = NULL; 3086 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3087 3088 /* check options */ 3089 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3090 switch (c) { 3091 case 'o': 3092 fields = optarg; 3093 break; 3094 case 'p': 3095 cb.cb_literal = B_TRUE; 3096 flags |= ZFS_ITER_LITERAL_PROPS; 3097 break; 3098 case 'd': 3099 limit = parse_depth(optarg, &flags); 3100 break; 3101 case 'r': 3102 flags |= ZFS_ITER_RECURSE; 3103 break; 3104 case 'H': 3105 cb.cb_scripted = B_TRUE; 3106 break; 3107 case 's': 3108 if (zfs_add_sort_column(&sortcol, optarg, 3109 B_FALSE) != 0) { 3110 (void) fprintf(stderr, 3111 gettext("invalid property '%s'\n"), optarg); 3112 usage(B_FALSE); 3113 } 3114 break; 3115 case 'S': 3116 if (zfs_add_sort_column(&sortcol, optarg, 3117 B_TRUE) != 0) { 3118 (void) fprintf(stderr, 3119 gettext("invalid property '%s'\n"), optarg); 3120 usage(B_FALSE); 3121 } 3122 break; 3123 case 't': 3124 types = 0; 3125 types_specified = B_TRUE; 3126 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3127 while (*optarg != '\0') { 3128 static char *type_subopts[] = { "filesystem", 3129 "volume", "snapshot", "snap", "bookmark", 3130 "all", NULL }; 3131 3132 switch (getsubopt(&optarg, type_subopts, 3133 &value)) { 3134 case 0: 3135 types |= ZFS_TYPE_FILESYSTEM; 3136 break; 3137 case 1: 3138 types |= ZFS_TYPE_VOLUME; 3139 break; 3140 case 2: 3141 case 3: 3142 types |= ZFS_TYPE_SNAPSHOT; 3143 break; 3144 case 4: 3145 types |= ZFS_TYPE_BOOKMARK; 3146 break; 3147 case 5: 3148 types = ZFS_TYPE_DATASET | 3149 ZFS_TYPE_BOOKMARK; 3150 break; 3151 default: 3152 (void) fprintf(stderr, 3153 gettext("invalid type '%s'\n"), 3154 value); 3155 usage(B_FALSE); 3156 } 3157 } 3158 break; 3159 case ':': 3160 (void) fprintf(stderr, gettext("missing argument for " 3161 "'%c' option\n"), optopt); 3162 usage(B_FALSE); 3163 break; 3164 case '?': 3165 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3166 optopt); 3167 usage(B_FALSE); 3168 } 3169 } 3170 3171 argc -= optind; 3172 argv += optind; 3173 3174 if (fields == NULL) 3175 fields = default_fields; 3176 3177 /* 3178 * If "-o space" and no types were specified, don't display snapshots. 3179 */ 3180 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3181 types &= ~ZFS_TYPE_SNAPSHOT; 3182 3183 /* 3184 * If the user specifies '-o all', the zprop_get_list() doesn't 3185 * normally include the name of the dataset. For 'zfs list', we always 3186 * want this property to be first. 3187 */ 3188 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3189 != 0) 3190 usage(B_FALSE); 3191 3192 cb.cb_first = B_TRUE; 3193 3194 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3195 limit, list_callback, &cb); 3196 3197 zprop_free_list(cb.cb_proplist); 3198 zfs_free_sort_columns(sortcol); 3199 3200 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3201 (void) printf(gettext("no datasets available\n")); 3202 3203 return (ret); 3204 } 3205 3206 /* 3207 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3208 * zfs rename [-f] -p <fs | vol> <fs | vol> 3209 * zfs rename -r <snap> <snap> 3210 * 3211 * Renames the given dataset to another of the same type. 3212 * 3213 * The '-p' flag creates all the non-existing ancestors of the target first. 3214 */ 3215 /* ARGSUSED */ 3216 static int 3217 zfs_do_rename(int argc, char **argv) 3218 { 3219 zfs_handle_t *zhp; 3220 int c; 3221 int ret = 0; 3222 boolean_t recurse = B_FALSE; 3223 boolean_t parents = B_FALSE; 3224 boolean_t force_unmount = B_FALSE; 3225 3226 /* check options */ 3227 while ((c = getopt(argc, argv, "prf")) != -1) { 3228 switch (c) { 3229 case 'p': 3230 parents = B_TRUE; 3231 break; 3232 case 'r': 3233 recurse = B_TRUE; 3234 break; 3235 case 'f': 3236 force_unmount = B_TRUE; 3237 break; 3238 case '?': 3239 default: 3240 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3241 optopt); 3242 usage(B_FALSE); 3243 } 3244 } 3245 3246 argc -= optind; 3247 argv += optind; 3248 3249 /* check number of arguments */ 3250 if (argc < 1) { 3251 (void) fprintf(stderr, gettext("missing source dataset " 3252 "argument\n")); 3253 usage(B_FALSE); 3254 } 3255 if (argc < 2) { 3256 (void) fprintf(stderr, gettext("missing target dataset " 3257 "argument\n")); 3258 usage(B_FALSE); 3259 } 3260 if (argc > 2) { 3261 (void) fprintf(stderr, gettext("too many arguments\n")); 3262 usage(B_FALSE); 3263 } 3264 3265 if (recurse && parents) { 3266 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3267 "exclusive\n")); 3268 usage(B_FALSE); 3269 } 3270 3271 if (recurse && strchr(argv[0], '@') == 0) { 3272 (void) fprintf(stderr, gettext("source dataset for recursive " 3273 "rename must be a snapshot\n")); 3274 usage(B_FALSE); 3275 } 3276 3277 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3278 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3279 return (1); 3280 3281 /* If we were asked and the name looks good, try to create ancestors. */ 3282 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3283 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3284 zfs_close(zhp); 3285 return (1); 3286 } 3287 3288 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3289 3290 zfs_close(zhp); 3291 return (ret); 3292 } 3293 3294 /* 3295 * zfs promote <fs> 3296 * 3297 * Promotes the given clone fs to be the parent 3298 */ 3299 /* ARGSUSED */ 3300 static int 3301 zfs_do_promote(int argc, char **argv) 3302 { 3303 zfs_handle_t *zhp; 3304 int ret = 0; 3305 3306 /* check options */ 3307 if (argc > 1 && argv[1][0] == '-') { 3308 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3309 argv[1][1]); 3310 usage(B_FALSE); 3311 } 3312 3313 /* check number of arguments */ 3314 if (argc < 2) { 3315 (void) fprintf(stderr, gettext("missing clone filesystem" 3316 " argument\n")); 3317 usage(B_FALSE); 3318 } 3319 if (argc > 2) { 3320 (void) fprintf(stderr, gettext("too many arguments\n")); 3321 usage(B_FALSE); 3322 } 3323 3324 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3325 if (zhp == NULL) 3326 return (1); 3327 3328 ret = (zfs_promote(zhp) != 0); 3329 3330 3331 zfs_close(zhp); 3332 return (ret); 3333 } 3334 3335 /* 3336 * zfs rollback [-rRf] <snapshot> 3337 * 3338 * -r Delete any intervening snapshots before doing rollback 3339 * -R Delete any snapshots and their clones 3340 * -f ignored for backwards compatability 3341 * 3342 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3343 * since then and making it the active dataset. If more recent snapshots exist, 3344 * the command will complain unless the '-r' flag is given. 3345 */ 3346 typedef struct rollback_cbdata { 3347 uint64_t cb_create; 3348 boolean_t cb_first; 3349 int cb_doclones; 3350 char *cb_target; 3351 int cb_error; 3352 boolean_t cb_recurse; 3353 } rollback_cbdata_t; 3354 3355 static int 3356 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3357 { 3358 rollback_cbdata_t *cbp = data; 3359 3360 if (cbp->cb_first && cbp->cb_recurse) { 3361 (void) fprintf(stderr, gettext("cannot rollback to " 3362 "'%s': clones of previous snapshots exist\n"), 3363 cbp->cb_target); 3364 (void) fprintf(stderr, gettext("use '-R' to " 3365 "force deletion of the following clones and " 3366 "dependents:\n")); 3367 cbp->cb_first = 0; 3368 cbp->cb_error = 1; 3369 } 3370 3371 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3372 3373 zfs_close(zhp); 3374 return (0); 3375 } 3376 3377 /* 3378 * Report any snapshots more recent than the one specified. Used when '-r' is 3379 * not specified. We reuse this same callback for the snapshot dependents - if 3380 * 'cb_dependent' is set, then this is a dependent and we should report it 3381 * without checking the transaction group. 3382 */ 3383 static int 3384 rollback_check(zfs_handle_t *zhp, void *data) 3385 { 3386 rollback_cbdata_t *cbp = data; 3387 3388 if (cbp->cb_doclones) { 3389 zfs_close(zhp); 3390 return (0); 3391 } 3392 3393 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3394 if (cbp->cb_first && !cbp->cb_recurse) { 3395 (void) fprintf(stderr, gettext("cannot " 3396 "rollback to '%s': more recent snapshots " 3397 "or bookmarks exist\n"), 3398 cbp->cb_target); 3399 (void) fprintf(stderr, gettext("use '-r' to " 3400 "force deletion of the following " 3401 "snapshots and bookmarks:\n")); 3402 cbp->cb_first = 0; 3403 cbp->cb_error = 1; 3404 } 3405 3406 if (cbp->cb_recurse) { 3407 if (zfs_iter_dependents(zhp, B_TRUE, 3408 rollback_check_dependent, cbp) != 0) { 3409 zfs_close(zhp); 3410 return (-1); 3411 } 3412 } else { 3413 (void) fprintf(stderr, "%s\n", 3414 zfs_get_name(zhp)); 3415 } 3416 } 3417 zfs_close(zhp); 3418 return (0); 3419 } 3420 3421 static int 3422 zfs_do_rollback(int argc, char **argv) 3423 { 3424 int ret = 0; 3425 int c; 3426 boolean_t force = B_FALSE; 3427 rollback_cbdata_t cb = { 0 }; 3428 zfs_handle_t *zhp, *snap; 3429 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3430 char *delim; 3431 3432 /* check options */ 3433 while ((c = getopt(argc, argv, "rRf")) != -1) { 3434 switch (c) { 3435 case 'r': 3436 cb.cb_recurse = 1; 3437 break; 3438 case 'R': 3439 cb.cb_recurse = 1; 3440 cb.cb_doclones = 1; 3441 break; 3442 case 'f': 3443 force = B_TRUE; 3444 break; 3445 case '?': 3446 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3447 optopt); 3448 usage(B_FALSE); 3449 } 3450 } 3451 3452 argc -= optind; 3453 argv += optind; 3454 3455 /* check number of arguments */ 3456 if (argc < 1) { 3457 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3458 usage(B_FALSE); 3459 } 3460 if (argc > 1) { 3461 (void) fprintf(stderr, gettext("too many arguments\n")); 3462 usage(B_FALSE); 3463 } 3464 3465 /* open the snapshot */ 3466 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3467 return (1); 3468 3469 /* open the parent dataset */ 3470 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3471 verify((delim = strrchr(parentname, '@')) != NULL); 3472 *delim = '\0'; 3473 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3474 zfs_close(snap); 3475 return (1); 3476 } 3477 3478 /* 3479 * Check for more recent snapshots and/or clones based on the presence 3480 * of '-r' and '-R'. 3481 */ 3482 cb.cb_target = argv[0]; 3483 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3484 cb.cb_first = B_TRUE; 3485 cb.cb_error = 0; 3486 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3487 goto out; 3488 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3489 goto out; 3490 3491 if ((ret = cb.cb_error) != 0) 3492 goto out; 3493 3494 /* 3495 * Rollback parent to the given snapshot. 3496 */ 3497 ret = zfs_rollback(zhp, snap, force); 3498 3499 out: 3500 zfs_close(snap); 3501 zfs_close(zhp); 3502 3503 if (ret == 0) 3504 return (0); 3505 else 3506 return (1); 3507 } 3508 3509 /* 3510 * zfs set property=value ... { fs | snap | vol } ... 3511 * 3512 * Sets the given properties for all datasets specified on the command line. 3513 */ 3514 3515 static int 3516 set_callback(zfs_handle_t *zhp, void *data) 3517 { 3518 nvlist_t *props = data; 3519 3520 if (zfs_prop_set_list(zhp, props) != 0) { 3521 switch (libzfs_errno(g_zfs)) { 3522 case EZFS_MOUNTFAILED: 3523 (void) fprintf(stderr, gettext("property may be set " 3524 "but unable to remount filesystem\n")); 3525 break; 3526 case EZFS_SHARENFSFAILED: 3527 (void) fprintf(stderr, gettext("property may be set " 3528 "but unable to reshare filesystem\n")); 3529 break; 3530 } 3531 return (1); 3532 } 3533 return (0); 3534 } 3535 3536 static int 3537 zfs_do_set(int argc, char **argv) 3538 { 3539 nvlist_t *props = NULL; 3540 int ds_start = -1; /* argv idx of first dataset arg */ 3541 int ret = 0; 3542 3543 /* check for options */ 3544 if (argc > 1 && argv[1][0] == '-') { 3545 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3546 argv[1][1]); 3547 usage(B_FALSE); 3548 } 3549 3550 /* check number of arguments */ 3551 if (argc < 2) { 3552 (void) fprintf(stderr, gettext("missing arguments\n")); 3553 usage(B_FALSE); 3554 } 3555 if (argc < 3) { 3556 if (strchr(argv[1], '=') == NULL) { 3557 (void) fprintf(stderr, gettext("missing property=value " 3558 "argument(s)\n")); 3559 } else { 3560 (void) fprintf(stderr, gettext("missing dataset " 3561 "name(s)\n")); 3562 } 3563 usage(B_FALSE); 3564 } 3565 3566 /* validate argument order: prop=val args followed by dataset args */ 3567 for (int i = 1; i < argc; i++) { 3568 if (strchr(argv[i], '=') != NULL) { 3569 if (ds_start > 0) { 3570 /* out-of-order prop=val argument */ 3571 (void) fprintf(stderr, gettext("invalid " 3572 "argument order\n"), i); 3573 usage(B_FALSE); 3574 } 3575 } else if (ds_start < 0) { 3576 ds_start = i; 3577 } 3578 } 3579 if (ds_start < 0) { 3580 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3581 usage(B_FALSE); 3582 } 3583 3584 /* Populate a list of property settings */ 3585 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3586 nomem(); 3587 for (int i = 1; i < ds_start; i++) { 3588 if ((ret = parseprop(props, argv[i])) != 0) 3589 goto error; 3590 } 3591 3592 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3593 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3594 3595 error: 3596 nvlist_free(props); 3597 return (ret); 3598 } 3599 3600 typedef struct snap_cbdata { 3601 nvlist_t *sd_nvl; 3602 boolean_t sd_recursive; 3603 const char *sd_snapname; 3604 } snap_cbdata_t; 3605 3606 static int 3607 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3608 { 3609 snap_cbdata_t *sd = arg; 3610 char *name; 3611 int rv = 0; 3612 int error; 3613 3614 if (sd->sd_recursive && 3615 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3616 zfs_close(zhp); 3617 return (0); 3618 } 3619 3620 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3621 if (error == -1) 3622 nomem(); 3623 fnvlist_add_boolean(sd->sd_nvl, name); 3624 free(name); 3625 3626 if (sd->sd_recursive) 3627 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3628 zfs_close(zhp); 3629 return (rv); 3630 } 3631 3632 /* 3633 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3634 * 3635 * Creates a snapshot with the given name. While functionally equivalent to 3636 * 'zfs create', it is a separate command to differentiate intent. 3637 */ 3638 static int 3639 zfs_do_snapshot(int argc, char **argv) 3640 { 3641 int ret = 0; 3642 char c; 3643 nvlist_t *props; 3644 snap_cbdata_t sd = { 0 }; 3645 boolean_t multiple_snaps = B_FALSE; 3646 3647 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3648 nomem(); 3649 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3650 nomem(); 3651 3652 /* check options */ 3653 while ((c = getopt(argc, argv, "ro:")) != -1) { 3654 switch (c) { 3655 case 'o': 3656 if (parseprop(props, optarg) != 0) 3657 return (1); 3658 break; 3659 case 'r': 3660 sd.sd_recursive = B_TRUE; 3661 multiple_snaps = B_TRUE; 3662 break; 3663 case '?': 3664 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3665 optopt); 3666 goto usage; 3667 } 3668 } 3669 3670 argc -= optind; 3671 argv += optind; 3672 3673 /* check number of arguments */ 3674 if (argc < 1) { 3675 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3676 goto usage; 3677 } 3678 3679 if (argc > 1) 3680 multiple_snaps = B_TRUE; 3681 for (; argc > 0; argc--, argv++) { 3682 char *atp; 3683 zfs_handle_t *zhp; 3684 3685 atp = strchr(argv[0], '@'); 3686 if (atp == NULL) 3687 goto usage; 3688 *atp = '\0'; 3689 sd.sd_snapname = atp + 1; 3690 zhp = zfs_open(g_zfs, argv[0], 3691 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3692 if (zhp == NULL) 3693 goto usage; 3694 if (zfs_snapshot_cb(zhp, &sd) != 0) 3695 goto usage; 3696 } 3697 3698 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3699 nvlist_free(sd.sd_nvl); 3700 nvlist_free(props); 3701 if (ret != 0 && multiple_snaps) 3702 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3703 return (ret != 0); 3704 3705 usage: 3706 nvlist_free(sd.sd_nvl); 3707 nvlist_free(props); 3708 usage(B_FALSE); 3709 return (-1); 3710 } 3711 3712 /* 3713 * Send a backup stream to stdout. 3714 */ 3715 static int 3716 zfs_do_send(int argc, char **argv) 3717 { 3718 char *fromname = NULL; 3719 char *toname = NULL; 3720 char *resume_token = NULL; 3721 char *cp; 3722 zfs_handle_t *zhp; 3723 sendflags_t flags = { 0 }; 3724 int c, err; 3725 nvlist_t *dbgnv = NULL; 3726 boolean_t extraverbose = B_FALSE; 3727 3728 /* check options */ 3729 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3730 switch (c) { 3731 case 'i': 3732 if (fromname) 3733 usage(B_FALSE); 3734 fromname = optarg; 3735 break; 3736 case 'I': 3737 if (fromname) 3738 usage(B_FALSE); 3739 fromname = optarg; 3740 flags.doall = B_TRUE; 3741 break; 3742 case 'R': 3743 flags.replicate = B_TRUE; 3744 break; 3745 case 'p': 3746 flags.props = B_TRUE; 3747 break; 3748 case 'P': 3749 flags.parsable = B_TRUE; 3750 flags.verbose = B_TRUE; 3751 break; 3752 case 'v': 3753 if (flags.verbose) 3754 extraverbose = B_TRUE; 3755 flags.verbose = B_TRUE; 3756 flags.progress = B_TRUE; 3757 break; 3758 case 'D': 3759 flags.dedup = B_TRUE; 3760 break; 3761 case 'n': 3762 flags.dryrun = B_TRUE; 3763 break; 3764 case 'L': 3765 flags.largeblock = B_TRUE; 3766 break; 3767 case 'e': 3768 flags.embed_data = B_TRUE; 3769 break; 3770 case 't': 3771 resume_token = optarg; 3772 break; 3773 case ':': 3774 (void) fprintf(stderr, gettext("missing argument for " 3775 "'%c' option\n"), optopt); 3776 usage(B_FALSE); 3777 break; 3778 case '?': 3779 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3780 optopt); 3781 usage(B_FALSE); 3782 } 3783 } 3784 3785 argc -= optind; 3786 argv += optind; 3787 3788 if (resume_token != NULL) { 3789 if (fromname != NULL || flags.replicate || flags.props || 3790 flags.dedup) { 3791 (void) fprintf(stderr, 3792 gettext("invalid flags combined with -t\n")); 3793 usage(B_FALSE); 3794 } 3795 if (argc != 0) { 3796 (void) fprintf(stderr, gettext("no additional " 3797 "arguments are permitted with -t\n")); 3798 usage(B_FALSE); 3799 } 3800 } else { 3801 if (argc < 1) { 3802 (void) fprintf(stderr, 3803 gettext("missing snapshot argument\n")); 3804 usage(B_FALSE); 3805 } 3806 if (argc > 1) { 3807 (void) fprintf(stderr, gettext("too many arguments\n")); 3808 usage(B_FALSE); 3809 } 3810 } 3811 3812 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3813 (void) fprintf(stderr, 3814 gettext("Error: Stream can not be written to a terminal.\n" 3815 "You must redirect standard output.\n")); 3816 return (1); 3817 } 3818 3819 if (resume_token != NULL) { 3820 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3821 resume_token)); 3822 } 3823 3824 /* 3825 * Special case sending a filesystem, or from a bookmark. 3826 */ 3827 if (strchr(argv[0], '@') == NULL || 3828 (fromname && strchr(fromname, '#') != NULL)) { 3829 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3830 enum lzc_send_flags lzc_flags = 0; 3831 3832 if (flags.replicate || flags.doall || flags.props || 3833 flags.dedup || flags.dryrun || flags.verbose || 3834 flags.progress) { 3835 (void) fprintf(stderr, 3836 gettext("Error: " 3837 "Unsupported flag with filesystem or bookmark.\n")); 3838 return (1); 3839 } 3840 3841 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3842 if (zhp == NULL) 3843 return (1); 3844 3845 if (flags.largeblock) 3846 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3847 if (flags.embed_data) 3848 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3849 3850 if (fromname != NULL && 3851 (fromname[0] == '#' || fromname[0] == '@')) { 3852 /* 3853 * Incremental source name begins with # or @. 3854 * Default to same fs as target. 3855 */ 3856 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3857 cp = strchr(frombuf, '@'); 3858 if (cp != NULL) 3859 *cp = '\0'; 3860 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3861 fromname = frombuf; 3862 } 3863 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3864 zfs_close(zhp); 3865 return (err != 0); 3866 } 3867 3868 cp = strchr(argv[0], '@'); 3869 *cp = '\0'; 3870 toname = cp + 1; 3871 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3872 if (zhp == NULL) 3873 return (1); 3874 3875 /* 3876 * If they specified the full path to the snapshot, chop off 3877 * everything except the short name of the snapshot, but special 3878 * case if they specify the origin. 3879 */ 3880 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3881 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3882 zprop_source_t src; 3883 3884 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3885 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3886 3887 if (strcmp(origin, fromname) == 0) { 3888 fromname = NULL; 3889 flags.fromorigin = B_TRUE; 3890 } else { 3891 *cp = '\0'; 3892 if (cp != fromname && strcmp(argv[0], fromname)) { 3893 (void) fprintf(stderr, 3894 gettext("incremental source must be " 3895 "in same filesystem\n")); 3896 usage(B_FALSE); 3897 } 3898 fromname = cp + 1; 3899 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3900 (void) fprintf(stderr, 3901 gettext("invalid incremental source\n")); 3902 usage(B_FALSE); 3903 } 3904 } 3905 } 3906 3907 if (flags.replicate && fromname == NULL) 3908 flags.doall = B_TRUE; 3909 3910 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3911 extraverbose ? &dbgnv : NULL); 3912 3913 if (extraverbose && dbgnv != NULL) { 3914 /* 3915 * dump_nvlist prints to stdout, but that's been 3916 * redirected to a file. Make it print to stderr 3917 * instead. 3918 */ 3919 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3920 dump_nvlist(dbgnv, 0); 3921 nvlist_free(dbgnv); 3922 } 3923 zfs_close(zhp); 3924 3925 return (err != 0); 3926 } 3927 3928 /* 3929 * Restore a backup stream from stdin. 3930 */ 3931 static int 3932 zfs_do_receive(int argc, char **argv) 3933 { 3934 int c, err = 0; 3935 recvflags_t flags = { 0 }; 3936 boolean_t abort_resumable = B_FALSE; 3937 3938 nvlist_t *props; 3939 nvpair_t *nvp = NULL; 3940 3941 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3942 nomem(); 3943 3944 /* check options */ 3945 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3946 switch (c) { 3947 case 'o': 3948 if (parseprop(props, optarg) != 0) 3949 return (1); 3950 break; 3951 case 'd': 3952 flags.isprefix = B_TRUE; 3953 break; 3954 case 'e': 3955 flags.isprefix = B_TRUE; 3956 flags.istail = B_TRUE; 3957 break; 3958 case 'n': 3959 flags.dryrun = B_TRUE; 3960 break; 3961 case 'u': 3962 flags.nomount = B_TRUE; 3963 break; 3964 case 'v': 3965 flags.verbose = B_TRUE; 3966 break; 3967 case 's': 3968 flags.resumable = B_TRUE; 3969 break; 3970 case 'F': 3971 flags.force = B_TRUE; 3972 break; 3973 case 'A': 3974 abort_resumable = B_TRUE; 3975 break; 3976 case ':': 3977 (void) fprintf(stderr, gettext("missing argument for " 3978 "'%c' option\n"), optopt); 3979 usage(B_FALSE); 3980 break; 3981 case '?': 3982 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3983 optopt); 3984 usage(B_FALSE); 3985 } 3986 } 3987 3988 argc -= optind; 3989 argv += optind; 3990 3991 /* check number of arguments */ 3992 if (argc < 1) { 3993 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3994 usage(B_FALSE); 3995 } 3996 if (argc > 1) { 3997 (void) fprintf(stderr, gettext("too many arguments\n")); 3998 usage(B_FALSE); 3999 } 4000 4001 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4002 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4003 (void) fprintf(stderr, gettext("invalid option")); 4004 usage(B_FALSE); 4005 } 4006 } 4007 4008 if (abort_resumable) { 4009 if (flags.isprefix || flags.istail || flags.dryrun || 4010 flags.resumable || flags.nomount) { 4011 (void) fprintf(stderr, gettext("invalid option")); 4012 usage(B_FALSE); 4013 } 4014 4015 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4016 (void) snprintf(namebuf, sizeof (namebuf), 4017 "%s/%%recv", argv[0]); 4018 4019 if (zfs_dataset_exists(g_zfs, namebuf, 4020 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4021 zfs_handle_t *zhp = zfs_open(g_zfs, 4022 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4023 if (zhp == NULL) 4024 return (1); 4025 err = zfs_destroy(zhp, B_FALSE); 4026 } else { 4027 zfs_handle_t *zhp = zfs_open(g_zfs, 4028 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4029 if (zhp == NULL) 4030 usage(B_FALSE); 4031 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4032 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4033 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4034 (void) fprintf(stderr, 4035 gettext("'%s' does not have any " 4036 "resumable receive state to abort\n"), 4037 argv[0]); 4038 return (1); 4039 } 4040 err = zfs_destroy(zhp, B_FALSE); 4041 } 4042 4043 return (err != 0); 4044 } 4045 4046 if (isatty(STDIN_FILENO)) { 4047 (void) fprintf(stderr, 4048 gettext("Error: Backup stream can not be read " 4049 "from a terminal.\n" 4050 "You must redirect standard input.\n")); 4051 return (1); 4052 } 4053 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4054 4055 return (err != 0); 4056 } 4057 4058 /* 4059 * allow/unallow stuff 4060 */ 4061 /* copied from zfs/sys/dsl_deleg.h */ 4062 #define ZFS_DELEG_PERM_CREATE "create" 4063 #define ZFS_DELEG_PERM_DESTROY "destroy" 4064 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4065 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4066 #define ZFS_DELEG_PERM_CLONE "clone" 4067 #define ZFS_DELEG_PERM_PROMOTE "promote" 4068 #define ZFS_DELEG_PERM_RENAME "rename" 4069 #define ZFS_DELEG_PERM_MOUNT "mount" 4070 #define ZFS_DELEG_PERM_SHARE "share" 4071 #define ZFS_DELEG_PERM_SEND "send" 4072 #define ZFS_DELEG_PERM_RECEIVE "receive" 4073 #define ZFS_DELEG_PERM_ALLOW "allow" 4074 #define ZFS_DELEG_PERM_USERPROP "userprop" 4075 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4076 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4077 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4078 #define ZFS_DELEG_PERM_USERUSED "userused" 4079 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4080 #define ZFS_DELEG_PERM_HOLD "hold" 4081 #define ZFS_DELEG_PERM_RELEASE "release" 4082 #define ZFS_DELEG_PERM_DIFF "diff" 4083 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4084 4085 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4086 4087 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4088 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4089 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4090 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4091 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4092 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4093 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4094 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4095 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4096 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4097 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4098 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4099 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4100 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4101 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4102 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4103 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4104 4105 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4106 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4107 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4108 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4109 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4110 { NULL, ZFS_DELEG_NOTE_NONE } 4111 }; 4112 4113 /* permission structure */ 4114 typedef struct deleg_perm { 4115 zfs_deleg_who_type_t dp_who_type; 4116 const char *dp_name; 4117 boolean_t dp_local; 4118 boolean_t dp_descend; 4119 } deleg_perm_t; 4120 4121 /* */ 4122 typedef struct deleg_perm_node { 4123 deleg_perm_t dpn_perm; 4124 4125 uu_avl_node_t dpn_avl_node; 4126 } deleg_perm_node_t; 4127 4128 typedef struct fs_perm fs_perm_t; 4129 4130 /* permissions set */ 4131 typedef struct who_perm { 4132 zfs_deleg_who_type_t who_type; 4133 const char *who_name; /* id */ 4134 char who_ug_name[256]; /* user/group name */ 4135 fs_perm_t *who_fsperm; /* uplink */ 4136 4137 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4138 } who_perm_t; 4139 4140 /* */ 4141 typedef struct who_perm_node { 4142 who_perm_t who_perm; 4143 uu_avl_node_t who_avl_node; 4144 } who_perm_node_t; 4145 4146 typedef struct fs_perm_set fs_perm_set_t; 4147 /* fs permissions */ 4148 struct fs_perm { 4149 const char *fsp_name; 4150 4151 uu_avl_t *fsp_sc_avl; /* sets,create */ 4152 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4153 4154 fs_perm_set_t *fsp_set; /* uplink */ 4155 }; 4156 4157 /* */ 4158 typedef struct fs_perm_node { 4159 fs_perm_t fspn_fsperm; 4160 uu_avl_t *fspn_avl; 4161 4162 uu_list_node_t fspn_list_node; 4163 } fs_perm_node_t; 4164 4165 /* top level structure */ 4166 struct fs_perm_set { 4167 uu_list_pool_t *fsps_list_pool; 4168 uu_list_t *fsps_list; /* list of fs_perms */ 4169 4170 uu_avl_pool_t *fsps_named_set_avl_pool; 4171 uu_avl_pool_t *fsps_who_perm_avl_pool; 4172 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4173 }; 4174 4175 static inline const char * 4176 deleg_perm_type(zfs_deleg_note_t note) 4177 { 4178 /* subcommands */ 4179 switch (note) { 4180 /* SUBCOMMANDS */ 4181 /* OTHER */ 4182 case ZFS_DELEG_NOTE_GROUPQUOTA: 4183 case ZFS_DELEG_NOTE_GROUPUSED: 4184 case ZFS_DELEG_NOTE_USERPROP: 4185 case ZFS_DELEG_NOTE_USERQUOTA: 4186 case ZFS_DELEG_NOTE_USERUSED: 4187 /* other */ 4188 return (gettext("other")); 4189 default: 4190 return (gettext("subcommand")); 4191 } 4192 } 4193 4194 static int 4195 who_type2weight(zfs_deleg_who_type_t who_type) 4196 { 4197 int res; 4198 switch (who_type) { 4199 case ZFS_DELEG_NAMED_SET_SETS: 4200 case ZFS_DELEG_NAMED_SET: 4201 res = 0; 4202 break; 4203 case ZFS_DELEG_CREATE_SETS: 4204 case ZFS_DELEG_CREATE: 4205 res = 1; 4206 break; 4207 case ZFS_DELEG_USER_SETS: 4208 case ZFS_DELEG_USER: 4209 res = 2; 4210 break; 4211 case ZFS_DELEG_GROUP_SETS: 4212 case ZFS_DELEG_GROUP: 4213 res = 3; 4214 break; 4215 case ZFS_DELEG_EVERYONE_SETS: 4216 case ZFS_DELEG_EVERYONE: 4217 res = 4; 4218 break; 4219 default: 4220 res = -1; 4221 } 4222 4223 return (res); 4224 } 4225 4226 /* ARGSUSED */ 4227 static int 4228 who_perm_compare(const void *larg, const void *rarg, void *unused) 4229 { 4230 const who_perm_node_t *l = larg; 4231 const who_perm_node_t *r = rarg; 4232 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4233 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4234 int lweight = who_type2weight(ltype); 4235 int rweight = who_type2weight(rtype); 4236 int res = lweight - rweight; 4237 if (res == 0) 4238 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4239 ZFS_MAX_DELEG_NAME-1); 4240 4241 if (res == 0) 4242 return (0); 4243 if (res > 0) 4244 return (1); 4245 else 4246 return (-1); 4247 } 4248 4249 /* ARGSUSED */ 4250 static int 4251 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4252 { 4253 const deleg_perm_node_t *l = larg; 4254 const deleg_perm_node_t *r = rarg; 4255 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4256 ZFS_MAX_DELEG_NAME-1); 4257 4258 if (res == 0) 4259 return (0); 4260 4261 if (res > 0) 4262 return (1); 4263 else 4264 return (-1); 4265 } 4266 4267 static inline void 4268 fs_perm_set_init(fs_perm_set_t *fspset) 4269 { 4270 bzero(fspset, sizeof (fs_perm_set_t)); 4271 4272 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4273 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4274 NULL, UU_DEFAULT)) == NULL) 4275 nomem(); 4276 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4277 UU_DEFAULT)) == NULL) 4278 nomem(); 4279 4280 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4281 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4282 who_perm_node_t, who_avl_node), who_perm_compare, 4283 UU_DEFAULT)) == NULL) 4284 nomem(); 4285 4286 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4287 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4288 who_perm_node_t, who_avl_node), who_perm_compare, 4289 UU_DEFAULT)) == NULL) 4290 nomem(); 4291 4292 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4293 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4294 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4295 == NULL) 4296 nomem(); 4297 } 4298 4299 static inline void fs_perm_fini(fs_perm_t *); 4300 static inline void who_perm_fini(who_perm_t *); 4301 4302 static inline void 4303 fs_perm_set_fini(fs_perm_set_t *fspset) 4304 { 4305 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4306 4307 while (node != NULL) { 4308 fs_perm_node_t *next_node = 4309 uu_list_next(fspset->fsps_list, node); 4310 fs_perm_t *fsperm = &node->fspn_fsperm; 4311 fs_perm_fini(fsperm); 4312 uu_list_remove(fspset->fsps_list, node); 4313 free(node); 4314 node = next_node; 4315 } 4316 4317 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4318 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4319 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4320 } 4321 4322 static inline void 4323 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4324 const char *name) 4325 { 4326 deleg_perm->dp_who_type = type; 4327 deleg_perm->dp_name = name; 4328 } 4329 4330 static inline void 4331 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4332 zfs_deleg_who_type_t type, const char *name) 4333 { 4334 uu_avl_pool_t *pool; 4335 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4336 4337 bzero(who_perm, sizeof (who_perm_t)); 4338 4339 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4340 UU_DEFAULT)) == NULL) 4341 nomem(); 4342 4343 who_perm->who_type = type; 4344 who_perm->who_name = name; 4345 who_perm->who_fsperm = fsperm; 4346 } 4347 4348 static inline void 4349 who_perm_fini(who_perm_t *who_perm) 4350 { 4351 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4352 4353 while (node != NULL) { 4354 deleg_perm_node_t *next_node = 4355 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4356 4357 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4358 free(node); 4359 node = next_node; 4360 } 4361 4362 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4363 } 4364 4365 static inline void 4366 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4367 { 4368 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4369 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4370 4371 bzero(fsperm, sizeof (fs_perm_t)); 4372 4373 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4374 == NULL) 4375 nomem(); 4376 4377 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4378 == NULL) 4379 nomem(); 4380 4381 fsperm->fsp_set = fspset; 4382 fsperm->fsp_name = fsname; 4383 } 4384 4385 static inline void 4386 fs_perm_fini(fs_perm_t *fsperm) 4387 { 4388 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4389 while (node != NULL) { 4390 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4391 node); 4392 who_perm_t *who_perm = &node->who_perm; 4393 who_perm_fini(who_perm); 4394 uu_avl_remove(fsperm->fsp_sc_avl, node); 4395 free(node); 4396 node = next_node; 4397 } 4398 4399 node = uu_avl_first(fsperm->fsp_uge_avl); 4400 while (node != NULL) { 4401 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4402 node); 4403 who_perm_t *who_perm = &node->who_perm; 4404 who_perm_fini(who_perm); 4405 uu_avl_remove(fsperm->fsp_uge_avl, node); 4406 free(node); 4407 node = next_node; 4408 } 4409 4410 uu_avl_destroy(fsperm->fsp_sc_avl); 4411 uu_avl_destroy(fsperm->fsp_uge_avl); 4412 } 4413 4414 static void 4415 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4416 zfs_deleg_who_type_t who_type, const char *name, char locality) 4417 { 4418 uu_avl_index_t idx = 0; 4419 4420 deleg_perm_node_t *found_node = NULL; 4421 deleg_perm_t *deleg_perm = &node->dpn_perm; 4422 4423 deleg_perm_init(deleg_perm, who_type, name); 4424 4425 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4426 == NULL) 4427 uu_avl_insert(avl, node, idx); 4428 else { 4429 node = found_node; 4430 deleg_perm = &node->dpn_perm; 4431 } 4432 4433 4434 switch (locality) { 4435 case ZFS_DELEG_LOCAL: 4436 deleg_perm->dp_local = B_TRUE; 4437 break; 4438 case ZFS_DELEG_DESCENDENT: 4439 deleg_perm->dp_descend = B_TRUE; 4440 break; 4441 case ZFS_DELEG_NA: 4442 break; 4443 default: 4444 assert(B_FALSE); /* invalid locality */ 4445 } 4446 } 4447 4448 static inline int 4449 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4450 { 4451 nvpair_t *nvp = NULL; 4452 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4453 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4454 zfs_deleg_who_type_t who_type = who_perm->who_type; 4455 4456 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4457 const char *name = nvpair_name(nvp); 4458 data_type_t type = nvpair_type(nvp); 4459 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4460 deleg_perm_node_t *node = 4461 safe_malloc(sizeof (deleg_perm_node_t)); 4462 4463 assert(type == DATA_TYPE_BOOLEAN); 4464 4465 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4466 set_deleg_perm_node(avl, node, who_type, name, locality); 4467 } 4468 4469 return (0); 4470 } 4471 4472 static inline int 4473 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4474 { 4475 nvpair_t *nvp = NULL; 4476 fs_perm_set_t *fspset = fsperm->fsp_set; 4477 4478 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4479 nvlist_t *nvl2 = NULL; 4480 const char *name = nvpair_name(nvp); 4481 uu_avl_t *avl = NULL; 4482 uu_avl_pool_t *avl_pool = NULL; 4483 zfs_deleg_who_type_t perm_type = name[0]; 4484 char perm_locality = name[1]; 4485 const char *perm_name = name + 3; 4486 boolean_t is_set = B_TRUE; 4487 who_perm_t *who_perm = NULL; 4488 4489 assert('$' == name[2]); 4490 4491 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4492 return (-1); 4493 4494 switch (perm_type) { 4495 case ZFS_DELEG_CREATE: 4496 case ZFS_DELEG_CREATE_SETS: 4497 case ZFS_DELEG_NAMED_SET: 4498 case ZFS_DELEG_NAMED_SET_SETS: 4499 avl_pool = fspset->fsps_named_set_avl_pool; 4500 avl = fsperm->fsp_sc_avl; 4501 break; 4502 case ZFS_DELEG_USER: 4503 case ZFS_DELEG_USER_SETS: 4504 case ZFS_DELEG_GROUP: 4505 case ZFS_DELEG_GROUP_SETS: 4506 case ZFS_DELEG_EVERYONE: 4507 case ZFS_DELEG_EVERYONE_SETS: 4508 avl_pool = fspset->fsps_who_perm_avl_pool; 4509 avl = fsperm->fsp_uge_avl; 4510 break; 4511 4512 default: 4513 assert(!"unhandled zfs_deleg_who_type_t"); 4514 } 4515 4516 if (is_set) { 4517 who_perm_node_t *found_node = NULL; 4518 who_perm_node_t *node = safe_malloc( 4519 sizeof (who_perm_node_t)); 4520 who_perm = &node->who_perm; 4521 uu_avl_index_t idx = 0; 4522 4523 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4524 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4525 4526 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4527 == NULL) { 4528 if (avl == fsperm->fsp_uge_avl) { 4529 uid_t rid = 0; 4530 struct passwd *p = NULL; 4531 struct group *g = NULL; 4532 const char *nice_name = NULL; 4533 4534 switch (perm_type) { 4535 case ZFS_DELEG_USER_SETS: 4536 case ZFS_DELEG_USER: 4537 rid = atoi(perm_name); 4538 p = getpwuid(rid); 4539 if (p) 4540 nice_name = p->pw_name; 4541 break; 4542 case ZFS_DELEG_GROUP_SETS: 4543 case ZFS_DELEG_GROUP: 4544 rid = atoi(perm_name); 4545 g = getgrgid(rid); 4546 if (g) 4547 nice_name = g->gr_name; 4548 break; 4549 4550 default: 4551 break; 4552 } 4553 4554 if (nice_name != NULL) 4555 (void) strlcpy( 4556 node->who_perm.who_ug_name, 4557 nice_name, 256); 4558 } 4559 4560 uu_avl_insert(avl, node, idx); 4561 } else { 4562 node = found_node; 4563 who_perm = &node->who_perm; 4564 } 4565 } 4566 4567 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4568 } 4569 4570 return (0); 4571 } 4572 4573 static inline int 4574 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4575 { 4576 nvpair_t *nvp = NULL; 4577 uu_avl_index_t idx = 0; 4578 4579 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4580 nvlist_t *nvl2 = NULL; 4581 const char *fsname = nvpair_name(nvp); 4582 data_type_t type = nvpair_type(nvp); 4583 fs_perm_t *fsperm = NULL; 4584 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4585 if (node == NULL) 4586 nomem(); 4587 4588 fsperm = &node->fspn_fsperm; 4589 4590 assert(DATA_TYPE_NVLIST == type); 4591 4592 uu_list_node_init(node, &node->fspn_list_node, 4593 fspset->fsps_list_pool); 4594 4595 idx = uu_list_numnodes(fspset->fsps_list); 4596 fs_perm_init(fsperm, fspset, fsname); 4597 4598 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4599 return (-1); 4600 4601 (void) parse_fs_perm(fsperm, nvl2); 4602 4603 uu_list_insert(fspset->fsps_list, node, idx); 4604 } 4605 4606 return (0); 4607 } 4608 4609 static inline const char * 4610 deleg_perm_comment(zfs_deleg_note_t note) 4611 { 4612 const char *str = ""; 4613 4614 /* subcommands */ 4615 switch (note) { 4616 /* SUBCOMMANDS */ 4617 case ZFS_DELEG_NOTE_ALLOW: 4618 str = gettext("Must also have the permission that is being" 4619 "\n\t\t\t\tallowed"); 4620 break; 4621 case ZFS_DELEG_NOTE_CLONE: 4622 str = gettext("Must also have the 'create' ability and 'mount'" 4623 "\n\t\t\t\tability in the origin file system"); 4624 break; 4625 case ZFS_DELEG_NOTE_CREATE: 4626 str = gettext("Must also have the 'mount' ability"); 4627 break; 4628 case ZFS_DELEG_NOTE_DESTROY: 4629 str = gettext("Must also have the 'mount' ability"); 4630 break; 4631 case ZFS_DELEG_NOTE_DIFF: 4632 str = gettext("Allows lookup of paths within a dataset;" 4633 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4634 "\n\t\t\t\tin order to use zfs diff"); 4635 break; 4636 case ZFS_DELEG_NOTE_HOLD: 4637 str = gettext("Allows adding a user hold to a snapshot"); 4638 break; 4639 case ZFS_DELEG_NOTE_MOUNT: 4640 str = gettext("Allows mount/umount of ZFS datasets"); 4641 break; 4642 case ZFS_DELEG_NOTE_PROMOTE: 4643 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4644 " 'promote' ability in the origin file system"); 4645 break; 4646 case ZFS_DELEG_NOTE_RECEIVE: 4647 str = gettext("Must also have the 'mount' and 'create'" 4648 " ability"); 4649 break; 4650 case ZFS_DELEG_NOTE_RELEASE: 4651 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4652 "might destroy the snapshot"); 4653 break; 4654 case ZFS_DELEG_NOTE_RENAME: 4655 str = gettext("Must also have the 'mount' and 'create'" 4656 "\n\t\t\t\tability in the new parent"); 4657 break; 4658 case ZFS_DELEG_NOTE_ROLLBACK: 4659 str = gettext(""); 4660 break; 4661 case ZFS_DELEG_NOTE_SEND: 4662 str = gettext(""); 4663 break; 4664 case ZFS_DELEG_NOTE_SHARE: 4665 str = gettext("Allows sharing file systems over NFS or SMB" 4666 "\n\t\t\t\tprotocols"); 4667 break; 4668 case ZFS_DELEG_NOTE_SNAPSHOT: 4669 str = gettext(""); 4670 break; 4671 /* 4672 * case ZFS_DELEG_NOTE_VSCAN: 4673 * str = gettext(""); 4674 * break; 4675 */ 4676 /* OTHER */ 4677 case ZFS_DELEG_NOTE_GROUPQUOTA: 4678 str = gettext("Allows accessing any groupquota@... property"); 4679 break; 4680 case ZFS_DELEG_NOTE_GROUPUSED: 4681 str = gettext("Allows reading any groupused@... property"); 4682 break; 4683 case ZFS_DELEG_NOTE_USERPROP: 4684 str = gettext("Allows changing any user property"); 4685 break; 4686 case ZFS_DELEG_NOTE_USERQUOTA: 4687 str = gettext("Allows accessing any userquota@... property"); 4688 break; 4689 case ZFS_DELEG_NOTE_USERUSED: 4690 str = gettext("Allows reading any userused@... property"); 4691 break; 4692 /* other */ 4693 default: 4694 str = ""; 4695 } 4696 4697 return (str); 4698 } 4699 4700 struct allow_opts { 4701 boolean_t local; 4702 boolean_t descend; 4703 boolean_t user; 4704 boolean_t group; 4705 boolean_t everyone; 4706 boolean_t create; 4707 boolean_t set; 4708 boolean_t recursive; /* unallow only */ 4709 boolean_t prt_usage; 4710 4711 boolean_t prt_perms; 4712 char *who; 4713 char *perms; 4714 const char *dataset; 4715 }; 4716 4717 static inline int 4718 prop_cmp(const void *a, const void *b) 4719 { 4720 const char *str1 = *(const char **)a; 4721 const char *str2 = *(const char **)b; 4722 return (strcmp(str1, str2)); 4723 } 4724 4725 static void 4726 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4727 { 4728 const char *opt_desc[] = { 4729 "-h", gettext("show this help message and exit"), 4730 "-l", gettext("set permission locally"), 4731 "-d", gettext("set permission for descents"), 4732 "-u", gettext("set permission for user"), 4733 "-g", gettext("set permission for group"), 4734 "-e", gettext("set permission for everyone"), 4735 "-c", gettext("set create time permission"), 4736 "-s", gettext("define permission set"), 4737 /* unallow only */ 4738 "-r", gettext("remove permissions recursively"), 4739 }; 4740 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4741 size_t allow_size = unallow_size - 2; 4742 const char *props[ZFS_NUM_PROPS]; 4743 int i; 4744 size_t count = 0; 4745 FILE *fp = requested ? stdout : stderr; 4746 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4747 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4748 4749 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4750 HELP_ALLOW)); 4751 (void) fprintf(fp, gettext("Options:\n")); 4752 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4753 const char *opt = opt_desc[i++]; 4754 const char *optdsc = opt_desc[i]; 4755 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4756 } 4757 4758 (void) fprintf(fp, gettext("\nThe following permissions are " 4759 "supported:\n\n")); 4760 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4761 gettext("NOTES")); 4762 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4763 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4764 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4765 const char *perm_type = deleg_perm_type(perm_note); 4766 const char *perm_comment = deleg_perm_comment(perm_note); 4767 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4768 } 4769 4770 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4771 zprop_desc_t *pd = &pdtbl[i]; 4772 if (pd->pd_visible != B_TRUE) 4773 continue; 4774 4775 if (pd->pd_attr == PROP_READONLY) 4776 continue; 4777 4778 props[count++] = pd->pd_name; 4779 } 4780 props[count] = NULL; 4781 4782 qsort(props, count, sizeof (char *), prop_cmp); 4783 4784 for (i = 0; i < count; i++) 4785 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4786 4787 if (msg != NULL) 4788 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4789 4790 exit(requested ? 0 : 2); 4791 } 4792 4793 static inline const char * 4794 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4795 char **permsp) 4796 { 4797 if (un && argc == expected_argc - 1) 4798 *permsp = NULL; 4799 else if (argc == expected_argc) 4800 *permsp = argv[argc - 2]; 4801 else 4802 allow_usage(un, B_FALSE, 4803 gettext("wrong number of parameters\n")); 4804 4805 return (argv[argc - 1]); 4806 } 4807 4808 static void 4809 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4810 { 4811 int uge_sum = opts->user + opts->group + opts->everyone; 4812 int csuge_sum = opts->create + opts->set + uge_sum; 4813 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4814 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4815 4816 if (uge_sum > 1) 4817 allow_usage(un, B_FALSE, 4818 gettext("-u, -g, and -e are mutually exclusive\n")); 4819 4820 if (opts->prt_usage) { 4821 if (argc == 0 && all_sum == 0) 4822 allow_usage(un, B_TRUE, NULL); 4823 else 4824 usage(B_FALSE); 4825 } 4826 4827 if (opts->set) { 4828 if (csuge_sum > 1) 4829 allow_usage(un, B_FALSE, 4830 gettext("invalid options combined with -s\n")); 4831 4832 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4833 if (argv[0][0] != '@') 4834 allow_usage(un, B_FALSE, 4835 gettext("invalid set name: missing '@' prefix\n")); 4836 opts->who = argv[0]; 4837 } else if (opts->create) { 4838 if (ldcsuge_sum > 1) 4839 allow_usage(un, B_FALSE, 4840 gettext("invalid options combined with -c\n")); 4841 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4842 } else if (opts->everyone) { 4843 if (csuge_sum > 1) 4844 allow_usage(un, B_FALSE, 4845 gettext("invalid options combined with -e\n")); 4846 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4847 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4848 == 0) { 4849 opts->everyone = B_TRUE; 4850 argc--; 4851 argv++; 4852 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4853 } else if (argc == 1 && !un) { 4854 opts->prt_perms = B_TRUE; 4855 opts->dataset = argv[argc-1]; 4856 } else { 4857 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4858 opts->who = argv[0]; 4859 } 4860 4861 if (!opts->local && !opts->descend) { 4862 opts->local = B_TRUE; 4863 opts->descend = B_TRUE; 4864 } 4865 } 4866 4867 static void 4868 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4869 const char *who, char *perms, nvlist_t *top_nvl) 4870 { 4871 int i; 4872 char ld[2] = { '\0', '\0' }; 4873 char who_buf[MAXNAMELEN + 32]; 4874 char base_type = '\0'; 4875 char set_type = '\0'; 4876 nvlist_t *base_nvl = NULL; 4877 nvlist_t *set_nvl = NULL; 4878 nvlist_t *nvl; 4879 4880 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4881 nomem(); 4882 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4883 nomem(); 4884 4885 switch (type) { 4886 case ZFS_DELEG_NAMED_SET_SETS: 4887 case ZFS_DELEG_NAMED_SET: 4888 set_type = ZFS_DELEG_NAMED_SET_SETS; 4889 base_type = ZFS_DELEG_NAMED_SET; 4890 ld[0] = ZFS_DELEG_NA; 4891 break; 4892 case ZFS_DELEG_CREATE_SETS: 4893 case ZFS_DELEG_CREATE: 4894 set_type = ZFS_DELEG_CREATE_SETS; 4895 base_type = ZFS_DELEG_CREATE; 4896 ld[0] = ZFS_DELEG_NA; 4897 break; 4898 case ZFS_DELEG_USER_SETS: 4899 case ZFS_DELEG_USER: 4900 set_type = ZFS_DELEG_USER_SETS; 4901 base_type = ZFS_DELEG_USER; 4902 if (local) 4903 ld[0] = ZFS_DELEG_LOCAL; 4904 if (descend) 4905 ld[1] = ZFS_DELEG_DESCENDENT; 4906 break; 4907 case ZFS_DELEG_GROUP_SETS: 4908 case ZFS_DELEG_GROUP: 4909 set_type = ZFS_DELEG_GROUP_SETS; 4910 base_type = ZFS_DELEG_GROUP; 4911 if (local) 4912 ld[0] = ZFS_DELEG_LOCAL; 4913 if (descend) 4914 ld[1] = ZFS_DELEG_DESCENDENT; 4915 break; 4916 case ZFS_DELEG_EVERYONE_SETS: 4917 case ZFS_DELEG_EVERYONE: 4918 set_type = ZFS_DELEG_EVERYONE_SETS; 4919 base_type = ZFS_DELEG_EVERYONE; 4920 if (local) 4921 ld[0] = ZFS_DELEG_LOCAL; 4922 if (descend) 4923 ld[1] = ZFS_DELEG_DESCENDENT; 4924 break; 4925 4926 default: 4927 assert(set_type != '\0' && base_type != '\0'); 4928 } 4929 4930 if (perms != NULL) { 4931 char *curr = perms; 4932 char *end = curr + strlen(perms); 4933 4934 while (curr < end) { 4935 char *delim = strchr(curr, ','); 4936 if (delim == NULL) 4937 delim = end; 4938 else 4939 *delim = '\0'; 4940 4941 if (curr[0] == '@') 4942 nvl = set_nvl; 4943 else 4944 nvl = base_nvl; 4945 4946 (void) nvlist_add_boolean(nvl, curr); 4947 if (delim != end) 4948 *delim = ','; 4949 curr = delim + 1; 4950 } 4951 4952 for (i = 0; i < 2; i++) { 4953 char locality = ld[i]; 4954 if (locality == 0) 4955 continue; 4956 4957 if (!nvlist_empty(base_nvl)) { 4958 if (who != NULL) 4959 (void) snprintf(who_buf, 4960 sizeof (who_buf), "%c%c$%s", 4961 base_type, locality, who); 4962 else 4963 (void) snprintf(who_buf, 4964 sizeof (who_buf), "%c%c$", 4965 base_type, locality); 4966 4967 (void) nvlist_add_nvlist(top_nvl, who_buf, 4968 base_nvl); 4969 } 4970 4971 4972 if (!nvlist_empty(set_nvl)) { 4973 if (who != NULL) 4974 (void) snprintf(who_buf, 4975 sizeof (who_buf), "%c%c$%s", 4976 set_type, locality, who); 4977 else 4978 (void) snprintf(who_buf, 4979 sizeof (who_buf), "%c%c$", 4980 set_type, locality); 4981 4982 (void) nvlist_add_nvlist(top_nvl, who_buf, 4983 set_nvl); 4984 } 4985 } 4986 } else { 4987 for (i = 0; i < 2; i++) { 4988 char locality = ld[i]; 4989 if (locality == 0) 4990 continue; 4991 4992 if (who != NULL) 4993 (void) snprintf(who_buf, sizeof (who_buf), 4994 "%c%c$%s", base_type, locality, who); 4995 else 4996 (void) snprintf(who_buf, sizeof (who_buf), 4997 "%c%c$", base_type, locality); 4998 (void) nvlist_add_boolean(top_nvl, who_buf); 4999 5000 if (who != NULL) 5001 (void) snprintf(who_buf, sizeof (who_buf), 5002 "%c%c$%s", set_type, locality, who); 5003 else 5004 (void) snprintf(who_buf, sizeof (who_buf), 5005 "%c%c$", set_type, locality); 5006 (void) nvlist_add_boolean(top_nvl, who_buf); 5007 } 5008 } 5009 } 5010 5011 static int 5012 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5013 { 5014 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5015 nomem(); 5016 5017 if (opts->set) { 5018 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5019 opts->descend, opts->who, opts->perms, *nvlp); 5020 } else if (opts->create) { 5021 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5022 opts->descend, NULL, opts->perms, *nvlp); 5023 } else if (opts->everyone) { 5024 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5025 opts->descend, NULL, opts->perms, *nvlp); 5026 } else { 5027 char *curr = opts->who; 5028 char *end = curr + strlen(curr); 5029 5030 while (curr < end) { 5031 const char *who; 5032 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5033 char *endch; 5034 char *delim = strchr(curr, ','); 5035 char errbuf[256]; 5036 char id[64]; 5037 struct passwd *p = NULL; 5038 struct group *g = NULL; 5039 5040 uid_t rid; 5041 if (delim == NULL) 5042 delim = end; 5043 else 5044 *delim = '\0'; 5045 5046 rid = (uid_t)strtol(curr, &endch, 0); 5047 if (opts->user) { 5048 who_type = ZFS_DELEG_USER; 5049 if (*endch != '\0') 5050 p = getpwnam(curr); 5051 else 5052 p = getpwuid(rid); 5053 5054 if (p != NULL) 5055 rid = p->pw_uid; 5056 else { 5057 (void) snprintf(errbuf, 256, gettext( 5058 "invalid user %s"), curr); 5059 allow_usage(un, B_TRUE, errbuf); 5060 } 5061 } else if (opts->group) { 5062 who_type = ZFS_DELEG_GROUP; 5063 if (*endch != '\0') 5064 g = getgrnam(curr); 5065 else 5066 g = getgrgid(rid); 5067 5068 if (g != NULL) 5069 rid = g->gr_gid; 5070 else { 5071 (void) snprintf(errbuf, 256, gettext( 5072 "invalid group %s"), curr); 5073 allow_usage(un, B_TRUE, errbuf); 5074 } 5075 } else { 5076 if (*endch != '\0') { 5077 p = getpwnam(curr); 5078 } else { 5079 p = getpwuid(rid); 5080 } 5081 5082 if (p == NULL) { 5083 if (*endch != '\0') { 5084 g = getgrnam(curr); 5085 } else { 5086 g = getgrgid(rid); 5087 } 5088 } 5089 5090 if (p != NULL) { 5091 who_type = ZFS_DELEG_USER; 5092 rid = p->pw_uid; 5093 } else if (g != NULL) { 5094 who_type = ZFS_DELEG_GROUP; 5095 rid = g->gr_gid; 5096 } else { 5097 (void) snprintf(errbuf, 256, gettext( 5098 "invalid user/group %s"), curr); 5099 allow_usage(un, B_TRUE, errbuf); 5100 } 5101 } 5102 5103 (void) sprintf(id, "%u", rid); 5104 who = id; 5105 5106 store_allow_perm(who_type, opts->local, 5107 opts->descend, who, opts->perms, *nvlp); 5108 curr = delim + 1; 5109 } 5110 } 5111 5112 return (0); 5113 } 5114 5115 static void 5116 print_set_creat_perms(uu_avl_t *who_avl) 5117 { 5118 const char *sc_title[] = { 5119 gettext("Permission sets:\n"), 5120 gettext("Create time permissions:\n"), 5121 NULL 5122 }; 5123 const char **title_ptr = sc_title; 5124 who_perm_node_t *who_node = NULL; 5125 int prev_weight = -1; 5126 5127 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5128 who_node = uu_avl_next(who_avl, who_node)) { 5129 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5130 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5131 const char *who_name = who_node->who_perm.who_name; 5132 int weight = who_type2weight(who_type); 5133 boolean_t first = B_TRUE; 5134 deleg_perm_node_t *deleg_node; 5135 5136 if (prev_weight != weight) { 5137 (void) printf(*title_ptr++); 5138 prev_weight = weight; 5139 } 5140 5141 if (who_name == NULL || strnlen(who_name, 1) == 0) 5142 (void) printf("\t"); 5143 else 5144 (void) printf("\t%s ", who_name); 5145 5146 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5147 deleg_node = uu_avl_next(avl, deleg_node)) { 5148 if (first) { 5149 (void) printf("%s", 5150 deleg_node->dpn_perm.dp_name); 5151 first = B_FALSE; 5152 } else 5153 (void) printf(",%s", 5154 deleg_node->dpn_perm.dp_name); 5155 } 5156 5157 (void) printf("\n"); 5158 } 5159 } 5160 5161 static void 5162 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5163 const char *title) 5164 { 5165 who_perm_node_t *who_node = NULL; 5166 boolean_t prt_title = B_TRUE; 5167 uu_avl_walk_t *walk; 5168 5169 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5170 nomem(); 5171 5172 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5173 const char *who_name = who_node->who_perm.who_name; 5174 const char *nice_who_name = who_node->who_perm.who_ug_name; 5175 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5176 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5177 char delim = ' '; 5178 deleg_perm_node_t *deleg_node; 5179 boolean_t prt_who = B_TRUE; 5180 5181 for (deleg_node = uu_avl_first(avl); 5182 deleg_node != NULL; 5183 deleg_node = uu_avl_next(avl, deleg_node)) { 5184 if (local != deleg_node->dpn_perm.dp_local || 5185 descend != deleg_node->dpn_perm.dp_descend) 5186 continue; 5187 5188 if (prt_who) { 5189 const char *who = NULL; 5190 if (prt_title) { 5191 prt_title = B_FALSE; 5192 (void) printf(title); 5193 } 5194 5195 switch (who_type) { 5196 case ZFS_DELEG_USER_SETS: 5197 case ZFS_DELEG_USER: 5198 who = gettext("user"); 5199 if (nice_who_name) 5200 who_name = nice_who_name; 5201 break; 5202 case ZFS_DELEG_GROUP_SETS: 5203 case ZFS_DELEG_GROUP: 5204 who = gettext("group"); 5205 if (nice_who_name) 5206 who_name = nice_who_name; 5207 break; 5208 case ZFS_DELEG_EVERYONE_SETS: 5209 case ZFS_DELEG_EVERYONE: 5210 who = gettext("everyone"); 5211 who_name = NULL; 5212 break; 5213 5214 default: 5215 assert(who != NULL); 5216 } 5217 5218 prt_who = B_FALSE; 5219 if (who_name == NULL) 5220 (void) printf("\t%s", who); 5221 else 5222 (void) printf("\t%s %s", who, who_name); 5223 } 5224 5225 (void) printf("%c%s", delim, 5226 deleg_node->dpn_perm.dp_name); 5227 delim = ','; 5228 } 5229 5230 if (!prt_who) 5231 (void) printf("\n"); 5232 } 5233 5234 uu_avl_walk_end(walk); 5235 } 5236 5237 static void 5238 print_fs_perms(fs_perm_set_t *fspset) 5239 { 5240 fs_perm_node_t *node = NULL; 5241 char buf[MAXNAMELEN + 32]; 5242 const char *dsname = buf; 5243 5244 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5245 node = uu_list_next(fspset->fsps_list, node)) { 5246 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5247 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5248 int left = 0; 5249 5250 (void) snprintf(buf, sizeof (buf), 5251 gettext("---- Permissions on %s "), 5252 node->fspn_fsperm.fsp_name); 5253 (void) printf(dsname); 5254 left = 70 - strlen(buf); 5255 while (left-- > 0) 5256 (void) printf("-"); 5257 (void) printf("\n"); 5258 5259 print_set_creat_perms(sc_avl); 5260 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5261 gettext("Local permissions:\n")); 5262 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5263 gettext("Descendent permissions:\n")); 5264 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5265 gettext("Local+Descendent permissions:\n")); 5266 } 5267 } 5268 5269 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5270 5271 struct deleg_perms { 5272 boolean_t un; 5273 nvlist_t *nvl; 5274 }; 5275 5276 static int 5277 set_deleg_perms(zfs_handle_t *zhp, void *data) 5278 { 5279 struct deleg_perms *perms = (struct deleg_perms *)data; 5280 zfs_type_t zfs_type = zfs_get_type(zhp); 5281 5282 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5283 return (0); 5284 5285 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5286 } 5287 5288 static int 5289 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5290 { 5291 zfs_handle_t *zhp; 5292 nvlist_t *perm_nvl = NULL; 5293 nvlist_t *update_perm_nvl = NULL; 5294 int error = 1; 5295 int c; 5296 struct allow_opts opts = { 0 }; 5297 5298 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5299 5300 /* check opts */ 5301 while ((c = getopt(argc, argv, optstr)) != -1) { 5302 switch (c) { 5303 case 'l': 5304 opts.local = B_TRUE; 5305 break; 5306 case 'd': 5307 opts.descend = B_TRUE; 5308 break; 5309 case 'u': 5310 opts.user = B_TRUE; 5311 break; 5312 case 'g': 5313 opts.group = B_TRUE; 5314 break; 5315 case 'e': 5316 opts.everyone = B_TRUE; 5317 break; 5318 case 's': 5319 opts.set = B_TRUE; 5320 break; 5321 case 'c': 5322 opts.create = B_TRUE; 5323 break; 5324 case 'r': 5325 opts.recursive = B_TRUE; 5326 break; 5327 case ':': 5328 (void) fprintf(stderr, gettext("missing argument for " 5329 "'%c' option\n"), optopt); 5330 usage(B_FALSE); 5331 break; 5332 case 'h': 5333 opts.prt_usage = B_TRUE; 5334 break; 5335 case '?': 5336 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5337 optopt); 5338 usage(B_FALSE); 5339 } 5340 } 5341 5342 argc -= optind; 5343 argv += optind; 5344 5345 /* check arguments */ 5346 parse_allow_args(argc, argv, un, &opts); 5347 5348 /* try to open the dataset */ 5349 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5350 ZFS_TYPE_VOLUME)) == NULL) { 5351 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5352 opts.dataset); 5353 return (-1); 5354 } 5355 5356 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5357 goto cleanup2; 5358 5359 fs_perm_set_init(&fs_perm_set); 5360 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5361 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5362 goto cleanup1; 5363 } 5364 5365 if (opts.prt_perms) 5366 print_fs_perms(&fs_perm_set); 5367 else { 5368 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5369 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5370 goto cleanup0; 5371 5372 if (un && opts.recursive) { 5373 struct deleg_perms data = { un, update_perm_nvl }; 5374 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5375 &data) != 0) 5376 goto cleanup0; 5377 } 5378 } 5379 5380 error = 0; 5381 5382 cleanup0: 5383 nvlist_free(perm_nvl); 5384 nvlist_free(update_perm_nvl); 5385 cleanup1: 5386 fs_perm_set_fini(&fs_perm_set); 5387 cleanup2: 5388 zfs_close(zhp); 5389 5390 return (error); 5391 } 5392 5393 static int 5394 zfs_do_allow(int argc, char **argv) 5395 { 5396 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5397 } 5398 5399 static int 5400 zfs_do_unallow(int argc, char **argv) 5401 { 5402 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5403 } 5404 5405 static int 5406 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5407 { 5408 int errors = 0; 5409 int i; 5410 const char *tag; 5411 boolean_t recursive = B_FALSE; 5412 const char *opts = holding ? "rt" : "r"; 5413 int c; 5414 5415 /* check options */ 5416 while ((c = getopt(argc, argv, opts)) != -1) { 5417 switch (c) { 5418 case 'r': 5419 recursive = B_TRUE; 5420 break; 5421 case '?': 5422 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5423 optopt); 5424 usage(B_FALSE); 5425 } 5426 } 5427 5428 argc -= optind; 5429 argv += optind; 5430 5431 /* check number of arguments */ 5432 if (argc < 2) 5433 usage(B_FALSE); 5434 5435 tag = argv[0]; 5436 --argc; 5437 ++argv; 5438 5439 if (holding && tag[0] == '.') { 5440 /* tags starting with '.' are reserved for libzfs */ 5441 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5442 usage(B_FALSE); 5443 } 5444 5445 for (i = 0; i < argc; ++i) { 5446 zfs_handle_t *zhp; 5447 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5448 const char *delim; 5449 char *path = argv[i]; 5450 5451 delim = strchr(path, '@'); 5452 if (delim == NULL) { 5453 (void) fprintf(stderr, 5454 gettext("'%s' is not a snapshot\n"), path); 5455 ++errors; 5456 continue; 5457 } 5458 (void) strncpy(parent, path, delim - path); 5459 parent[delim - path] = '\0'; 5460 5461 zhp = zfs_open(g_zfs, parent, 5462 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5463 if (zhp == NULL) { 5464 ++errors; 5465 continue; 5466 } 5467 if (holding) { 5468 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5469 ++errors; 5470 } else { 5471 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5472 ++errors; 5473 } 5474 zfs_close(zhp); 5475 } 5476 5477 return (errors != 0); 5478 } 5479 5480 /* 5481 * zfs hold [-r] [-t] <tag> <snap> ... 5482 * 5483 * -r Recursively hold 5484 * 5485 * Apply a user-hold with the given tag to the list of snapshots. 5486 */ 5487 static int 5488 zfs_do_hold(int argc, char **argv) 5489 { 5490 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5491 } 5492 5493 /* 5494 * zfs release [-r] <tag> <snap> ... 5495 * 5496 * -r Recursively release 5497 * 5498 * Release a user-hold with the given tag from the list of snapshots. 5499 */ 5500 static int 5501 zfs_do_release(int argc, char **argv) 5502 { 5503 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5504 } 5505 5506 typedef struct holds_cbdata { 5507 boolean_t cb_recursive; 5508 const char *cb_snapname; 5509 nvlist_t **cb_nvlp; 5510 size_t cb_max_namelen; 5511 size_t cb_max_taglen; 5512 } holds_cbdata_t; 5513 5514 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5515 #define DATETIME_BUF_LEN (32) 5516 /* 5517 * 5518 */ 5519 static void 5520 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5521 { 5522 int i; 5523 nvpair_t *nvp = NULL; 5524 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5525 const char *col; 5526 5527 if (!scripted) { 5528 for (i = 0; i < 3; i++) { 5529 col = gettext(hdr_cols[i]); 5530 if (i < 2) 5531 (void) printf("%-*s ", i ? tagwidth : nwidth, 5532 col); 5533 else 5534 (void) printf("%s\n", col); 5535 } 5536 } 5537 5538 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5539 char *zname = nvpair_name(nvp); 5540 nvlist_t *nvl2; 5541 nvpair_t *nvp2 = NULL; 5542 (void) nvpair_value_nvlist(nvp, &nvl2); 5543 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5544 char tsbuf[DATETIME_BUF_LEN]; 5545 char *tagname = nvpair_name(nvp2); 5546 uint64_t val = 0; 5547 time_t time; 5548 struct tm t; 5549 char sep = scripted ? '\t' : ' '; 5550 size_t sepnum = scripted ? 1 : 2; 5551 5552 (void) nvpair_value_uint64(nvp2, &val); 5553 time = (time_t)val; 5554 (void) localtime_r(&time, &t); 5555 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5556 gettext(STRFTIME_FMT_STR), &t); 5557 5558 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5559 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5560 } 5561 } 5562 } 5563 5564 /* 5565 * Generic callback function to list a dataset or snapshot. 5566 */ 5567 static int 5568 holds_callback(zfs_handle_t *zhp, void *data) 5569 { 5570 holds_cbdata_t *cbp = data; 5571 nvlist_t *top_nvl = *cbp->cb_nvlp; 5572 nvlist_t *nvl = NULL; 5573 nvpair_t *nvp = NULL; 5574 const char *zname = zfs_get_name(zhp); 5575 size_t znamelen = strlen(zname); 5576 5577 if (cbp->cb_recursive) { 5578 const char *snapname; 5579 char *delim = strchr(zname, '@'); 5580 if (delim == NULL) 5581 return (0); 5582 5583 snapname = delim + 1; 5584 if (strcmp(cbp->cb_snapname, snapname)) 5585 return (0); 5586 } 5587 5588 if (zfs_get_holds(zhp, &nvl) != 0) 5589 return (-1); 5590 5591 if (znamelen > cbp->cb_max_namelen) 5592 cbp->cb_max_namelen = znamelen; 5593 5594 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5595 const char *tag = nvpair_name(nvp); 5596 size_t taglen = strlen(tag); 5597 if (taglen > cbp->cb_max_taglen) 5598 cbp->cb_max_taglen = taglen; 5599 } 5600 5601 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5602 } 5603 5604 /* 5605 * zfs holds [-r] <snap> ... 5606 * 5607 * -r Recursively hold 5608 */ 5609 static int 5610 zfs_do_holds(int argc, char **argv) 5611 { 5612 int errors = 0; 5613 int c; 5614 int i; 5615 boolean_t scripted = B_FALSE; 5616 boolean_t recursive = B_FALSE; 5617 const char *opts = "rH"; 5618 nvlist_t *nvl; 5619 5620 int types = ZFS_TYPE_SNAPSHOT; 5621 holds_cbdata_t cb = { 0 }; 5622 5623 int limit = 0; 5624 int ret = 0; 5625 int flags = 0; 5626 5627 /* check options */ 5628 while ((c = getopt(argc, argv, opts)) != -1) { 5629 switch (c) { 5630 case 'r': 5631 recursive = B_TRUE; 5632 break; 5633 case 'H': 5634 scripted = B_TRUE; 5635 break; 5636 case '?': 5637 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5638 optopt); 5639 usage(B_FALSE); 5640 } 5641 } 5642 5643 if (recursive) { 5644 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5645 flags |= ZFS_ITER_RECURSE; 5646 } 5647 5648 argc -= optind; 5649 argv += optind; 5650 5651 /* check number of arguments */ 5652 if (argc < 1) 5653 usage(B_FALSE); 5654 5655 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5656 nomem(); 5657 5658 for (i = 0; i < argc; ++i) { 5659 char *snapshot = argv[i]; 5660 const char *delim; 5661 const char *snapname; 5662 5663 delim = strchr(snapshot, '@'); 5664 if (delim == NULL) { 5665 (void) fprintf(stderr, 5666 gettext("'%s' is not a snapshot\n"), snapshot); 5667 ++errors; 5668 continue; 5669 } 5670 snapname = delim + 1; 5671 if (recursive) 5672 snapshot[delim - snapshot] = '\0'; 5673 5674 cb.cb_recursive = recursive; 5675 cb.cb_snapname = snapname; 5676 cb.cb_nvlp = &nvl; 5677 5678 /* 5679 * 1. collect holds data, set format options 5680 */ 5681 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5682 holds_callback, &cb); 5683 if (ret != 0) 5684 ++errors; 5685 } 5686 5687 /* 5688 * 2. print holds data 5689 */ 5690 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5691 5692 if (nvlist_empty(nvl)) 5693 (void) printf(gettext("no datasets available\n")); 5694 5695 nvlist_free(nvl); 5696 5697 return (0 != errors); 5698 } 5699 5700 #define CHECK_SPINNER 30 5701 #define SPINNER_TIME 3 /* seconds */ 5702 #define MOUNT_TIME 5 /* seconds */ 5703 5704 static int 5705 get_one_dataset(zfs_handle_t *zhp, void *data) 5706 { 5707 static char *spin[] = { "-", "\\", "|", "/" }; 5708 static int spinval = 0; 5709 static int spincheck = 0; 5710 static time_t last_spin_time = (time_t)0; 5711 get_all_cb_t *cbp = data; 5712 zfs_type_t type = zfs_get_type(zhp); 5713 5714 if (cbp->cb_verbose) { 5715 if (--spincheck < 0) { 5716 time_t now = time(NULL); 5717 if (last_spin_time + SPINNER_TIME < now) { 5718 update_progress(spin[spinval++ % 4]); 5719 last_spin_time = now; 5720 } 5721 spincheck = CHECK_SPINNER; 5722 } 5723 } 5724 5725 /* 5726 * Interate over any nested datasets. 5727 */ 5728 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5729 zfs_close(zhp); 5730 return (1); 5731 } 5732 5733 /* 5734 * Skip any datasets whose type does not match. 5735 */ 5736 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5737 zfs_close(zhp); 5738 return (0); 5739 } 5740 libzfs_add_handle(cbp, zhp); 5741 assert(cbp->cb_used <= cbp->cb_alloc); 5742 5743 return (0); 5744 } 5745 5746 static void 5747 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5748 { 5749 get_all_cb_t cb = { 0 }; 5750 cb.cb_verbose = verbose; 5751 cb.cb_getone = get_one_dataset; 5752 5753 if (verbose) 5754 set_progress_header(gettext("Reading ZFS config")); 5755 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5756 5757 *dslist = cb.cb_handles; 5758 *count = cb.cb_used; 5759 5760 if (verbose) 5761 finish_progress(gettext("done.")); 5762 } 5763 5764 /* 5765 * Generic callback for sharing or mounting filesystems. Because the code is so 5766 * similar, we have a common function with an extra parameter to determine which 5767 * mode we are using. 5768 */ 5769 #define OP_SHARE 0x1 5770 #define OP_MOUNT 0x2 5771 5772 /* 5773 * Share or mount a dataset. 5774 */ 5775 static int 5776 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5777 boolean_t explicit, const char *options) 5778 { 5779 char mountpoint[ZFS_MAXPROPLEN]; 5780 char shareopts[ZFS_MAXPROPLEN]; 5781 char smbshareopts[ZFS_MAXPROPLEN]; 5782 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5783 struct mnttab mnt; 5784 uint64_t zoned, canmount; 5785 boolean_t shared_nfs, shared_smb; 5786 5787 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5788 5789 /* 5790 * Check to make sure we can mount/share this dataset. If we 5791 * are in the global zone and the filesystem is exported to a 5792 * local zone, or if we are in a local zone and the 5793 * filesystem is not exported, then it is an error. 5794 */ 5795 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5796 5797 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5798 if (!explicit) 5799 return (0); 5800 5801 (void) fprintf(stderr, gettext("cannot %s '%s': " 5802 "dataset is exported to a local zone\n"), cmdname, 5803 zfs_get_name(zhp)); 5804 return (1); 5805 5806 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5807 if (!explicit) 5808 return (0); 5809 5810 (void) fprintf(stderr, gettext("cannot %s '%s': " 5811 "permission denied\n"), cmdname, 5812 zfs_get_name(zhp)); 5813 return (1); 5814 } 5815 5816 /* 5817 * Ignore any filesystems which don't apply to us. This 5818 * includes those with a legacy mountpoint, or those with 5819 * legacy share options. 5820 */ 5821 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5822 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5823 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5824 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5825 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5826 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5827 5828 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5829 strcmp(smbshareopts, "off") == 0) { 5830 if (!explicit) 5831 return (0); 5832 5833 (void) fprintf(stderr, gettext("cannot share '%s': " 5834 "legacy share\n"), zfs_get_name(zhp)); 5835 (void) fprintf(stderr, gettext("use share(1M) to " 5836 "share this filesystem, or set " 5837 "sharenfs property on\n")); 5838 return (1); 5839 } 5840 5841 /* 5842 * We cannot share or mount legacy filesystems. If the 5843 * shareopts is non-legacy but the mountpoint is legacy, we 5844 * treat it as a legacy share. 5845 */ 5846 if (strcmp(mountpoint, "legacy") == 0) { 5847 if (!explicit) 5848 return (0); 5849 5850 (void) fprintf(stderr, gettext("cannot %s '%s': " 5851 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5852 (void) fprintf(stderr, gettext("use %s(1M) to " 5853 "%s this filesystem\n"), cmdname, cmdname); 5854 return (1); 5855 } 5856 5857 if (strcmp(mountpoint, "none") == 0) { 5858 if (!explicit) 5859 return (0); 5860 5861 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5862 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5863 return (1); 5864 } 5865 5866 /* 5867 * canmount explicit outcome 5868 * on no pass through 5869 * on yes pass through 5870 * off no return 0 5871 * off yes display error, return 1 5872 * noauto no return 0 5873 * noauto yes pass through 5874 */ 5875 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5876 if (canmount == ZFS_CANMOUNT_OFF) { 5877 if (!explicit) 5878 return (0); 5879 5880 (void) fprintf(stderr, gettext("cannot %s '%s': " 5881 "'canmount' property is set to 'off'\n"), cmdname, 5882 zfs_get_name(zhp)); 5883 return (1); 5884 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5885 return (0); 5886 } 5887 5888 /* 5889 * If this filesystem is inconsistent and has a receive resume 5890 * token, we can not mount it. 5891 */ 5892 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5893 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5894 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5895 if (!explicit) 5896 return (0); 5897 5898 (void) fprintf(stderr, gettext("cannot %s '%s': " 5899 "Contains partially-completed state from " 5900 "\"zfs receive -r\", which can be resumed with " 5901 "\"zfs send -t\"\n"), 5902 cmdname, zfs_get_name(zhp)); 5903 return (1); 5904 } 5905 5906 /* 5907 * At this point, we have verified that the mountpoint and/or 5908 * shareopts are appropriate for auto management. If the 5909 * filesystem is already mounted or shared, return (failing 5910 * for explicit requests); otherwise mount or share the 5911 * filesystem. 5912 */ 5913 switch (op) { 5914 case OP_SHARE: 5915 5916 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5917 shared_smb = zfs_is_shared_smb(zhp, NULL); 5918 5919 if ((shared_nfs && shared_smb) || 5920 (shared_nfs && strcmp(shareopts, "on") == 0 && 5921 strcmp(smbshareopts, "off") == 0) || 5922 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5923 strcmp(shareopts, "off") == 0)) { 5924 if (!explicit) 5925 return (0); 5926 5927 (void) fprintf(stderr, gettext("cannot share " 5928 "'%s': filesystem already shared\n"), 5929 zfs_get_name(zhp)); 5930 return (1); 5931 } 5932 5933 if (!zfs_is_mounted(zhp, NULL) && 5934 zfs_mount(zhp, NULL, 0) != 0) 5935 return (1); 5936 5937 if (protocol == NULL) { 5938 if (zfs_shareall(zhp) != 0) 5939 return (1); 5940 } else if (strcmp(protocol, "nfs") == 0) { 5941 if (zfs_share_nfs(zhp)) 5942 return (1); 5943 } else if (strcmp(protocol, "smb") == 0) { 5944 if (zfs_share_smb(zhp)) 5945 return (1); 5946 } else { 5947 (void) fprintf(stderr, gettext("cannot share " 5948 "'%s': invalid share type '%s' " 5949 "specified\n"), 5950 zfs_get_name(zhp), protocol); 5951 return (1); 5952 } 5953 5954 break; 5955 5956 case OP_MOUNT: 5957 if (options == NULL) 5958 mnt.mnt_mntopts = ""; 5959 else 5960 mnt.mnt_mntopts = (char *)options; 5961 5962 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5963 zfs_is_mounted(zhp, NULL)) { 5964 if (!explicit) 5965 return (0); 5966 5967 (void) fprintf(stderr, gettext("cannot mount " 5968 "'%s': filesystem already mounted\n"), 5969 zfs_get_name(zhp)); 5970 return (1); 5971 } 5972 5973 if (zfs_mount(zhp, options, flags) != 0) 5974 return (1); 5975 break; 5976 } 5977 5978 return (0); 5979 } 5980 5981 /* 5982 * Reports progress in the form "(current/total)". Not thread-safe. 5983 */ 5984 static void 5985 report_mount_progress(int current, int total) 5986 { 5987 static time_t last_progress_time = 0; 5988 time_t now = time(NULL); 5989 char info[32]; 5990 5991 /* report 1..n instead of 0..n-1 */ 5992 ++current; 5993 5994 /* display header if we're here for the first time */ 5995 if (current == 1) { 5996 set_progress_header(gettext("Mounting ZFS filesystems")); 5997 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5998 /* too soon to report again */ 5999 return; 6000 } 6001 6002 last_progress_time = now; 6003 6004 (void) sprintf(info, "(%d/%d)", current, total); 6005 6006 if (current == total) 6007 finish_progress(info); 6008 else 6009 update_progress(info); 6010 } 6011 6012 static void 6013 append_options(char *mntopts, char *newopts) 6014 { 6015 int len = strlen(mntopts); 6016 6017 /* original length plus new string to append plus 1 for the comma */ 6018 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6019 (void) fprintf(stderr, gettext("the opts argument for " 6020 "'%c' option is too long (more than %d chars)\n"), 6021 "-o", MNT_LINE_MAX); 6022 usage(B_FALSE); 6023 } 6024 6025 if (*mntopts) 6026 mntopts[len++] = ','; 6027 6028 (void) strcpy(&mntopts[len], newopts); 6029 } 6030 6031 static int 6032 share_mount(int op, int argc, char **argv) 6033 { 6034 int do_all = 0; 6035 boolean_t verbose = B_FALSE; 6036 int c, ret = 0; 6037 char *options = NULL; 6038 int flags = 0; 6039 6040 /* check options */ 6041 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6042 != -1) { 6043 switch (c) { 6044 case 'a': 6045 do_all = 1; 6046 break; 6047 case 'v': 6048 verbose = B_TRUE; 6049 break; 6050 case 'o': 6051 if (*optarg == '\0') { 6052 (void) fprintf(stderr, gettext("empty mount " 6053 "options (-o) specified\n")); 6054 usage(B_FALSE); 6055 } 6056 6057 if (options == NULL) 6058 options = safe_malloc(MNT_LINE_MAX + 1); 6059 6060 /* option validation is done later */ 6061 append_options(options, optarg); 6062 break; 6063 6064 case 'O': 6065 flags |= MS_OVERLAY; 6066 break; 6067 case ':': 6068 (void) fprintf(stderr, gettext("missing argument for " 6069 "'%c' option\n"), optopt); 6070 usage(B_FALSE); 6071 break; 6072 case '?': 6073 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6074 optopt); 6075 usage(B_FALSE); 6076 } 6077 } 6078 6079 argc -= optind; 6080 argv += optind; 6081 6082 /* check number of arguments */ 6083 if (do_all) { 6084 zfs_handle_t **dslist = NULL; 6085 size_t i, count = 0; 6086 char *protocol = NULL; 6087 6088 if (op == OP_SHARE && argc > 0) { 6089 if (strcmp(argv[0], "nfs") != 0 && 6090 strcmp(argv[0], "smb") != 0) { 6091 (void) fprintf(stderr, gettext("share type " 6092 "must be 'nfs' or 'smb'\n")); 6093 usage(B_FALSE); 6094 } 6095 protocol = argv[0]; 6096 argc--; 6097 argv++; 6098 } 6099 6100 if (argc != 0) { 6101 (void) fprintf(stderr, gettext("too many arguments\n")); 6102 usage(B_FALSE); 6103 } 6104 6105 start_progress_timer(); 6106 get_all_datasets(&dslist, &count, verbose); 6107 6108 if (count == 0) 6109 return (0); 6110 6111 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6112 6113 for (i = 0; i < count; i++) { 6114 if (verbose) 6115 report_mount_progress(i, count); 6116 6117 if (share_mount_one(dslist[i], op, flags, protocol, 6118 B_FALSE, options) != 0) 6119 ret = 1; 6120 zfs_close(dslist[i]); 6121 } 6122 6123 free(dslist); 6124 } else if (argc == 0) { 6125 struct mnttab entry; 6126 6127 if ((op == OP_SHARE) || (options != NULL)) { 6128 (void) fprintf(stderr, gettext("missing filesystem " 6129 "argument (specify -a for all)\n")); 6130 usage(B_FALSE); 6131 } 6132 6133 /* 6134 * When mount is given no arguments, go through /etc/mnttab and 6135 * display any active ZFS mounts. We hide any snapshots, since 6136 * they are controlled automatically. 6137 */ 6138 rewind(mnttab_file); 6139 while (getmntent(mnttab_file, &entry) == 0) { 6140 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6141 strchr(entry.mnt_special, '@') != NULL) 6142 continue; 6143 6144 (void) printf("%-30s %s\n", entry.mnt_special, 6145 entry.mnt_mountp); 6146 } 6147 6148 } else { 6149 zfs_handle_t *zhp; 6150 6151 if (argc > 1) { 6152 (void) fprintf(stderr, 6153 gettext("too many arguments\n")); 6154 usage(B_FALSE); 6155 } 6156 6157 if ((zhp = zfs_open(g_zfs, argv[0], 6158 ZFS_TYPE_FILESYSTEM)) == NULL) { 6159 ret = 1; 6160 } else { 6161 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6162 options); 6163 zfs_close(zhp); 6164 } 6165 } 6166 6167 return (ret); 6168 } 6169 6170 /* 6171 * zfs mount -a [nfs] 6172 * zfs mount filesystem 6173 * 6174 * Mount all filesystems, or mount the given filesystem. 6175 */ 6176 static int 6177 zfs_do_mount(int argc, char **argv) 6178 { 6179 return (share_mount(OP_MOUNT, argc, argv)); 6180 } 6181 6182 /* 6183 * zfs share -a [nfs | smb] 6184 * zfs share filesystem 6185 * 6186 * Share all filesystems, or share the given filesystem. 6187 */ 6188 static int 6189 zfs_do_share(int argc, char **argv) 6190 { 6191 return (share_mount(OP_SHARE, argc, argv)); 6192 } 6193 6194 typedef struct unshare_unmount_node { 6195 zfs_handle_t *un_zhp; 6196 char *un_mountp; 6197 uu_avl_node_t un_avlnode; 6198 } unshare_unmount_node_t; 6199 6200 /* ARGSUSED */ 6201 static int 6202 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6203 { 6204 const unshare_unmount_node_t *l = larg; 6205 const unshare_unmount_node_t *r = rarg; 6206 6207 return (strcmp(l->un_mountp, r->un_mountp)); 6208 } 6209 6210 /* 6211 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6212 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6213 * and unmount it appropriately. 6214 */ 6215 static int 6216 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6217 { 6218 zfs_handle_t *zhp; 6219 int ret = 0; 6220 struct stat64 statbuf; 6221 struct extmnttab entry; 6222 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6223 ino_t path_inode; 6224 6225 /* 6226 * Search for the path in /etc/mnttab. Rather than looking for the 6227 * specific path, which can be fooled by non-standard paths (i.e. ".." 6228 * or "//"), we stat() the path and search for the corresponding 6229 * (major,minor) device pair. 6230 */ 6231 if (stat64(path, &statbuf) != 0) { 6232 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6233 cmdname, path, strerror(errno)); 6234 return (1); 6235 } 6236 path_inode = statbuf.st_ino; 6237 6238 /* 6239 * Search for the given (major,minor) pair in the mount table. 6240 */ 6241 rewind(mnttab_file); 6242 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6243 if (entry.mnt_major == major(statbuf.st_dev) && 6244 entry.mnt_minor == minor(statbuf.st_dev)) 6245 break; 6246 } 6247 if (ret != 0) { 6248 if (op == OP_SHARE) { 6249 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6250 "currently mounted\n"), cmdname, path); 6251 return (1); 6252 } 6253 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6254 path); 6255 if ((ret = umount2(path, flags)) != 0) 6256 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6257 strerror(errno)); 6258 return (ret != 0); 6259 } 6260 6261 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6262 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6263 "filesystem\n"), cmdname, path); 6264 return (1); 6265 } 6266 6267 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6268 ZFS_TYPE_FILESYSTEM)) == NULL) 6269 return (1); 6270 6271 ret = 1; 6272 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6273 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6274 cmdname, path, strerror(errno)); 6275 goto out; 6276 } else if (statbuf.st_ino != path_inode) { 6277 (void) fprintf(stderr, gettext("cannot " 6278 "%s '%s': not a mountpoint\n"), cmdname, path); 6279 goto out; 6280 } 6281 6282 if (op == OP_SHARE) { 6283 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6284 char smbshare_prop[ZFS_MAXPROPLEN]; 6285 6286 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6287 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6288 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6289 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6290 6291 if (strcmp(nfs_mnt_prop, "off") == 0 && 6292 strcmp(smbshare_prop, "off") == 0) { 6293 (void) fprintf(stderr, gettext("cannot unshare " 6294 "'%s': legacy share\n"), path); 6295 (void) fprintf(stderr, gettext("use " 6296 "unshare(1M) to unshare this filesystem\n")); 6297 } else if (!zfs_is_shared(zhp)) { 6298 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6299 "not currently shared\n"), path); 6300 } else { 6301 ret = zfs_unshareall_bypath(zhp, path); 6302 } 6303 } else { 6304 char mtpt_prop[ZFS_MAXPROPLEN]; 6305 6306 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6307 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6308 6309 if (is_manual) { 6310 ret = zfs_unmount(zhp, NULL, flags); 6311 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6312 (void) fprintf(stderr, gettext("cannot unmount " 6313 "'%s': legacy mountpoint\n"), 6314 zfs_get_name(zhp)); 6315 (void) fprintf(stderr, gettext("use umount(1M) " 6316 "to unmount this filesystem\n")); 6317 } else { 6318 ret = zfs_unmountall(zhp, flags); 6319 } 6320 } 6321 6322 out: 6323 zfs_close(zhp); 6324 6325 return (ret != 0); 6326 } 6327 6328 /* 6329 * Generic callback for unsharing or unmounting a filesystem. 6330 */ 6331 static int 6332 unshare_unmount(int op, int argc, char **argv) 6333 { 6334 int do_all = 0; 6335 int flags = 0; 6336 int ret = 0; 6337 int c; 6338 zfs_handle_t *zhp; 6339 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6340 char sharesmb[ZFS_MAXPROPLEN]; 6341 6342 /* check options */ 6343 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6344 switch (c) { 6345 case 'a': 6346 do_all = 1; 6347 break; 6348 case 'f': 6349 flags = MS_FORCE; 6350 break; 6351 case '?': 6352 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6353 optopt); 6354 usage(B_FALSE); 6355 } 6356 } 6357 6358 argc -= optind; 6359 argv += optind; 6360 6361 if (do_all) { 6362 /* 6363 * We could make use of zfs_for_each() to walk all datasets in 6364 * the system, but this would be very inefficient, especially 6365 * since we would have to linearly search /etc/mnttab for each 6366 * one. Instead, do one pass through /etc/mnttab looking for 6367 * zfs entries and call zfs_unmount() for each one. 6368 * 6369 * Things get a little tricky if the administrator has created 6370 * mountpoints beneath other ZFS filesystems. In this case, we 6371 * have to unmount the deepest filesystems first. To accomplish 6372 * this, we place all the mountpoints in an AVL tree sorted by 6373 * the special type (dataset name), and walk the result in 6374 * reverse to make sure to get any snapshots first. 6375 */ 6376 struct mnttab entry; 6377 uu_avl_pool_t *pool; 6378 uu_avl_t *tree = NULL; 6379 unshare_unmount_node_t *node; 6380 uu_avl_index_t idx; 6381 uu_avl_walk_t *walk; 6382 6383 if (argc != 0) { 6384 (void) fprintf(stderr, gettext("too many arguments\n")); 6385 usage(B_FALSE); 6386 } 6387 6388 if (((pool = uu_avl_pool_create("unmount_pool", 6389 sizeof (unshare_unmount_node_t), 6390 offsetof(unshare_unmount_node_t, un_avlnode), 6391 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6392 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6393 nomem(); 6394 6395 rewind(mnttab_file); 6396 while (getmntent(mnttab_file, &entry) == 0) { 6397 6398 /* ignore non-ZFS entries */ 6399 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6400 continue; 6401 6402 /* ignore snapshots */ 6403 if (strchr(entry.mnt_special, '@') != NULL) 6404 continue; 6405 6406 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6407 ZFS_TYPE_FILESYSTEM)) == NULL) { 6408 ret = 1; 6409 continue; 6410 } 6411 6412 /* 6413 * Ignore datasets that are excluded/restricted by 6414 * parent pool name. 6415 */ 6416 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6417 zfs_close(zhp); 6418 continue; 6419 } 6420 6421 switch (op) { 6422 case OP_SHARE: 6423 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6424 nfs_mnt_prop, 6425 sizeof (nfs_mnt_prop), 6426 NULL, NULL, 0, B_FALSE) == 0); 6427 if (strcmp(nfs_mnt_prop, "off") != 0) 6428 break; 6429 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6430 nfs_mnt_prop, 6431 sizeof (nfs_mnt_prop), 6432 NULL, NULL, 0, B_FALSE) == 0); 6433 if (strcmp(nfs_mnt_prop, "off") == 0) 6434 continue; 6435 break; 6436 case OP_MOUNT: 6437 /* Ignore legacy mounts */ 6438 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6439 nfs_mnt_prop, 6440 sizeof (nfs_mnt_prop), 6441 NULL, NULL, 0, B_FALSE) == 0); 6442 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6443 continue; 6444 /* Ignore canmount=noauto mounts */ 6445 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6446 ZFS_CANMOUNT_NOAUTO) 6447 continue; 6448 default: 6449 break; 6450 } 6451 6452 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6453 node->un_zhp = zhp; 6454 node->un_mountp = safe_strdup(entry.mnt_mountp); 6455 6456 uu_avl_node_init(node, &node->un_avlnode, pool); 6457 6458 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6459 uu_avl_insert(tree, node, idx); 6460 } else { 6461 zfs_close(node->un_zhp); 6462 free(node->un_mountp); 6463 free(node); 6464 } 6465 } 6466 6467 /* 6468 * Walk the AVL tree in reverse, unmounting each filesystem and 6469 * removing it from the AVL tree in the process. 6470 */ 6471 if ((walk = uu_avl_walk_start(tree, 6472 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6473 nomem(); 6474 6475 while ((node = uu_avl_walk_next(walk)) != NULL) { 6476 uu_avl_remove(tree, node); 6477 6478 switch (op) { 6479 case OP_SHARE: 6480 if (zfs_unshareall_bypath(node->un_zhp, 6481 node->un_mountp) != 0) 6482 ret = 1; 6483 break; 6484 6485 case OP_MOUNT: 6486 if (zfs_unmount(node->un_zhp, 6487 node->un_mountp, flags) != 0) 6488 ret = 1; 6489 break; 6490 } 6491 6492 zfs_close(node->un_zhp); 6493 free(node->un_mountp); 6494 free(node); 6495 } 6496 6497 uu_avl_walk_end(walk); 6498 uu_avl_destroy(tree); 6499 uu_avl_pool_destroy(pool); 6500 6501 } else { 6502 if (argc != 1) { 6503 if (argc == 0) 6504 (void) fprintf(stderr, 6505 gettext("missing filesystem argument\n")); 6506 else 6507 (void) fprintf(stderr, 6508 gettext("too many arguments\n")); 6509 usage(B_FALSE); 6510 } 6511 6512 /* 6513 * We have an argument, but it may be a full path or a ZFS 6514 * filesystem. Pass full paths off to unmount_path() (shared by 6515 * manual_unmount), otherwise open the filesystem and pass to 6516 * zfs_unmount(). 6517 */ 6518 if (argv[0][0] == '/') 6519 return (unshare_unmount_path(op, argv[0], 6520 flags, B_FALSE)); 6521 6522 if ((zhp = zfs_open(g_zfs, argv[0], 6523 ZFS_TYPE_FILESYSTEM)) == NULL) 6524 return (1); 6525 6526 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6527 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6528 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6529 NULL, 0, B_FALSE) == 0); 6530 6531 switch (op) { 6532 case OP_SHARE: 6533 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6534 nfs_mnt_prop, 6535 sizeof (nfs_mnt_prop), 6536 NULL, NULL, 0, B_FALSE) == 0); 6537 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6538 sharesmb, sizeof (sharesmb), NULL, NULL, 6539 0, B_FALSE) == 0); 6540 6541 if (strcmp(nfs_mnt_prop, "off") == 0 && 6542 strcmp(sharesmb, "off") == 0) { 6543 (void) fprintf(stderr, gettext("cannot " 6544 "unshare '%s': legacy share\n"), 6545 zfs_get_name(zhp)); 6546 (void) fprintf(stderr, gettext("use " 6547 "unshare(1M) to unshare this " 6548 "filesystem\n")); 6549 ret = 1; 6550 } else if (!zfs_is_shared(zhp)) { 6551 (void) fprintf(stderr, gettext("cannot " 6552 "unshare '%s': not currently " 6553 "shared\n"), zfs_get_name(zhp)); 6554 ret = 1; 6555 } else if (zfs_unshareall(zhp) != 0) { 6556 ret = 1; 6557 } 6558 break; 6559 6560 case OP_MOUNT: 6561 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6562 (void) fprintf(stderr, gettext("cannot " 6563 "unmount '%s': legacy " 6564 "mountpoint\n"), zfs_get_name(zhp)); 6565 (void) fprintf(stderr, gettext("use " 6566 "umount(1M) to unmount this " 6567 "filesystem\n")); 6568 ret = 1; 6569 } else if (!zfs_is_mounted(zhp, NULL)) { 6570 (void) fprintf(stderr, gettext("cannot " 6571 "unmount '%s': not currently " 6572 "mounted\n"), 6573 zfs_get_name(zhp)); 6574 ret = 1; 6575 } else if (zfs_unmountall(zhp, flags) != 0) { 6576 ret = 1; 6577 } 6578 break; 6579 } 6580 6581 zfs_close(zhp); 6582 } 6583 6584 return (ret); 6585 } 6586 6587 /* 6588 * zfs unmount -a 6589 * zfs unmount filesystem 6590 * 6591 * Unmount all filesystems, or a specific ZFS filesystem. 6592 */ 6593 static int 6594 zfs_do_unmount(int argc, char **argv) 6595 { 6596 return (unshare_unmount(OP_MOUNT, argc, argv)); 6597 } 6598 6599 /* 6600 * zfs unshare -a 6601 * zfs unshare filesystem 6602 * 6603 * Unshare all filesystems, or a specific ZFS filesystem. 6604 */ 6605 static int 6606 zfs_do_unshare(int argc, char **argv) 6607 { 6608 return (unshare_unmount(OP_SHARE, argc, argv)); 6609 } 6610 6611 /* 6612 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6613 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6614 */ 6615 static int 6616 manual_mount(int argc, char **argv) 6617 { 6618 zfs_handle_t *zhp; 6619 char mountpoint[ZFS_MAXPROPLEN]; 6620 char mntopts[MNT_LINE_MAX] = { '\0' }; 6621 int ret = 0; 6622 int c; 6623 int flags = 0; 6624 char *dataset, *path; 6625 6626 /* check options */ 6627 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6628 switch (c) { 6629 case 'o': 6630 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6631 break; 6632 case 'O': 6633 flags |= MS_OVERLAY; 6634 break; 6635 case 'm': 6636 flags |= MS_NOMNTTAB; 6637 break; 6638 case ':': 6639 (void) fprintf(stderr, gettext("missing argument for " 6640 "'%c' option\n"), optopt); 6641 usage(B_FALSE); 6642 break; 6643 case '?': 6644 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6645 optopt); 6646 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6647 "<path>\n")); 6648 return (2); 6649 } 6650 } 6651 6652 argc -= optind; 6653 argv += optind; 6654 6655 /* check that we only have two arguments */ 6656 if (argc != 2) { 6657 if (argc == 0) 6658 (void) fprintf(stderr, gettext("missing dataset " 6659 "argument\n")); 6660 else if (argc == 1) 6661 (void) fprintf(stderr, 6662 gettext("missing mountpoint argument\n")); 6663 else 6664 (void) fprintf(stderr, gettext("too many arguments\n")); 6665 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6666 return (2); 6667 } 6668 6669 dataset = argv[0]; 6670 path = argv[1]; 6671 6672 /* try to open the dataset */ 6673 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6674 return (1); 6675 6676 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6677 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6678 6679 /* check for legacy mountpoint and complain appropriately */ 6680 ret = 0; 6681 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6682 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6683 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6684 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6685 strerror(errno)); 6686 ret = 1; 6687 } 6688 } else { 6689 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6690 "mounted using 'mount -F zfs'\n"), dataset); 6691 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6692 "instead.\n"), path); 6693 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6694 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6695 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6696 "information.\n")); 6697 ret = 1; 6698 } 6699 6700 return (ret); 6701 } 6702 6703 /* 6704 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6705 * unmounts of non-legacy filesystems, as this is the dominant administrative 6706 * interface. 6707 */ 6708 static int 6709 manual_unmount(int argc, char **argv) 6710 { 6711 int flags = 0; 6712 int c; 6713 6714 /* check options */ 6715 while ((c = getopt(argc, argv, "f")) != -1) { 6716 switch (c) { 6717 case 'f': 6718 flags = MS_FORCE; 6719 break; 6720 case '?': 6721 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6722 optopt); 6723 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6724 "<path>\n")); 6725 return (2); 6726 } 6727 } 6728 6729 argc -= optind; 6730 argv += optind; 6731 6732 /* check arguments */ 6733 if (argc != 1) { 6734 if (argc == 0) 6735 (void) fprintf(stderr, gettext("missing path " 6736 "argument\n")); 6737 else 6738 (void) fprintf(stderr, gettext("too many arguments\n")); 6739 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6740 return (2); 6741 } 6742 6743 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6744 } 6745 6746 static int 6747 find_command_idx(char *command, int *idx) 6748 { 6749 int i; 6750 6751 for (i = 0; i < NCOMMAND; i++) { 6752 if (command_table[i].name == NULL) 6753 continue; 6754 6755 if (strcmp(command, command_table[i].name) == 0) { 6756 *idx = i; 6757 return (0); 6758 } 6759 } 6760 return (1); 6761 } 6762 6763 static inline char * 6764 get_rid_fs(const char *rid) 6765 { 6766 FILE *pool_file = NULL; 6767 char *fs = malloc(256); 6768 char *pool = fs; 6769 size_t len; 6770 int rid_len; 6771 6772 assert(fs); 6773 6774 if (!rid) { 6775 fprintf(stderr, "rzfs: no rid given for -r\n"); 6776 exit(1); 6777 } 6778 6779 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6780 fprintf(stderr, "rzfs: get_rid_fs: fopen for %s failed: %s\n", 6781 STG_POOL_FILE, strerror(errno)); 6782 exit(1); 6783 } 6784 6785 len = fread(pool, sizeof(char), 256, pool_file); 6786 if (len != POOL_NAME_LEN + 1) { 6787 fprintf(stderr, "rzfs: get_rid_fs: malformed pool in %s " 6788 "(len=%d)\n", STG_POOL_FILE, (int)len); 6789 exit(1); 6790 } 6791 fs[POOL_NAME_LEN] = 0; 6792 6793 rid_len = strlen(rid); 6794 sprintf(fs, "%s/%c%c/%s_root", pool, rid[rid_len - 2], 6795 rid[rid_len - 1], rid); 6796 fclose(pool_file); 6797 return fs; 6798 } 6799 6800 /* path: /mnt/abc.n/99/599999 */ 6801 static char * 6802 get_space_path(const char *rid) 6803 { 6804 FILE *pool_file = NULL; 6805 char *path = malloc(PATH_MAX + 1); 6806 char pool[POOL_NAME_LEN + 1]; 6807 size_t len; 6808 int rid_len; 6809 6810 assert(path); 6811 6812 if (!rid) { 6813 fprintf(stderr, "xlist: no rid given for -r\n"); 6814 exit(1); 6815 } 6816 if (strlen(rid) < 8) { 6817 fprintf(stderr, "invalid rid\n"); 6818 exit(1); 6819 } 6820 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6821 fprintf(stderr, "xlist: get_space_path: fopen for %s failed: " 6822 "%s\n", STG_POOL_FILE, strerror(errno)); 6823 exit(1); 6824 } 6825 len = fread(pool, sizeof(char), POOL_NAME_LEN + 1, pool_file); 6826 if (len != POOL_NAME_LEN + 1) { 6827 fprintf(stderr, "xlist: get_space_path: malformed pool in %s " 6828 "(len=%d)\n", STG_POOL_FILE, (int)len); 6829 exit(1); 6830 } 6831 pool[POOL_NAME_LEN] = 0; 6832 6833 rid_len = strlen(rid); 6834 sprintf(path, "/mnt/%s/%c%c/%s", pool, rid[rid_len - 2], 6835 rid[rid_len - 1], rid); 6836 6837 fclose(pool_file); 6838 return path; 6839 } 6840 6841 int 6842 xlist(zfs_handle_t *zfh, void *ctx) 6843 { 6844 int ret; 6845 6846 if (zfs_get_type(zfh) & dataset_type) 6847 printf("%s\n", zfs_get_name(zfh)); 6848 6849 if (zfs_get_type(zfh) != ZFS_TYPE_FILESYSTEM) { 6850 zfs_close(zfh); 6851 return (0); 6852 } 6853 6854 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 6855 ret = zfs_iter_snapshots(zfh, xlist, ctx); 6856 if (ret) { 6857 fprintf(stderr, "xlist failed for %s: %s\n", 6858 zfs_get_name(zfh), 6859 libzfs_error_description(g_zfs)); 6860 exit(1); 6861 } 6862 } 6863 6864 if (dataset_type & ZFS_TYPE_BOOKMARK) { 6865 ret = zfs_iter_bookmarks(zfh, xlist, ctx); 6866 if (ret) { 6867 fprintf(stderr, "xlist failed for %s: %s\n", 6868 zfs_get_name(zfh), 6869 libzfs_error_description(g_zfs)); 6870 exit(1); 6871 } 6872 } 6873 6874 ret = zfs_iter_filesystems(zfh, xlist, ctx); 6875 if (ret) { 6876 fprintf(stderr, "xlist failed for %s: %s\n", zfs_get_name(zfh), 6877 libzfs_error_description(g_zfs)); 6878 exit(1); 6879 } 6880 6881 zfs_close(zfh); 6882 return (0); 6883 } 6884 6885 static int 6886 zfs_do_xlist(int argc, char **argv) 6887 { 6888 char *rootfs = NULL; 6889 char *path = NULL; 6890 dataset_type = ZFS_TYPE_FILESYSTEM; 6891 char c; 6892 6893 while ((c = getopt(argc, argv, "habsS:r:v")) != -1) { 6894 switch (c) { 6895 case 'h': /* help */ 6896 usage(B_TRUE); 6897 return 1; 6898 case 'a': /* print fs and snapshots */ 6899 dataset_type |= ZFS_TYPE_SNAPSHOT | ZFS_TYPE_BOOKMARK; 6900 break; 6901 case 'b': /* print bookmarks only */ 6902 dataset_type = ZFS_TYPE_BOOKMARK; 6903 break; 6904 case 'r': /* rid */ 6905 rootfs = get_rid_fs(optarg); 6906 break; 6907 case 's': /* print snapshots only */ 6908 dataset_type = ZFS_TYPE_SNAPSHOT; 6909 break; 6910 case 'S': 6911 path = get_space_path(optarg); 6912 printf("%s\n", path); 6913 exit(0); 6914 case 'v': 6915 fprintf(stderr, "xlist version %s\n", XVERSION); 6916 exit(0); 6917 default: 6918 (void) fprintf(stderr, 6919 gettext("invalid option '%c'\n"), optopt); 6920 usage(B_FALSE); 6921 } 6922 } 6923 6924 argc -= optind; 6925 argv += optind; 6926 6927 if (!rootfs) 6928 rootfs = *argv; 6929 6930 if (rootfs == NULL) { 6931 return zfs_iter_root(g_zfs, xlist, NULL); 6932 } else { 6933 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 6934 ZFS_TYPE_FILESYSTEM); 6935 if (!zfsh) { 6936 fprintf(stderr, "zfs_open failed for %s\n", 6937 rootfs); 6938 exit(1); 6939 } 6940 return xlist(zfsh, NULL); 6941 } 6942 } 6943 6944 static zprop_source_t 6945 get_property_source(zfs_handle_t *zfh, nvpair_t *prop) 6946 { 6947 data_type_t nvtype; 6948 nvlist_t *userprop; 6949 int ret; 6950 const char *fsname = zfs_get_name(zfh); 6951 char *source; 6952 zprop_source_t zret = ZPROP_SRC_NONE; 6953 6954 nvtype = nvpair_type(prop); 6955 assert(nvtype == DATA_TYPE_NVLIST); 6956 ret = nvpair_value_nvlist(prop, &userprop); 6957 assert(!ret); 6958 ret = nvlist_lookup_string(userprop, "source", &source); 6959 assert(!ret); 6960 6961 if (strcmp(source, fsname) == 0) 6962 zret = ZPROP_SRC_LOCAL; 6963 else 6964 zret = ZPROP_SRC_INHERITED; 6965 return zret; 6966 } 6967 6968 int 6969 get_userprop(zfs_handle_t *zfh, 6970 nvpair_t *prop, 6971 char **name, 6972 char **value, 6973 zprop_source_t *src) 6974 { 6975 int ret; 6976 data_type_t nvtype; 6977 nvlist_t *userprop; 6978 const char *fsname = zfs_get_name(zfh); 6979 6980 assert(name); 6981 assert(value); 6982 6983 *name = strdup(nvpair_name(prop)); 6984 assert(*name != NULL); 6985 6986 nvtype = nvpair_type(prop); 6987 if (nvtype != DATA_TYPE_NVLIST) { 6988 fprintf(stderr, "xget: get_userprop: user property has " 6989 "unexpected data type: property '%s' in zfs '%s':" 6990 " %d\n", *name, fsname, nvtype); 6991 goto err_userprop; 6992 } 6993 ret = nvpair_value_nvlist(prop, &userprop); 6994 if (ret) { 6995 fprintf(stderr, "xget: get_userprop: nvlist lookup failed for " 6996 "property '%s' in zfs '%s': %s\n", 6997 *name, fsname, strerror(ret)); 6998 goto err_userprop; 6999 } 7000 7001 /* get property value */ 7002 ret = nvlist_lookup_string(userprop, "value", value); 7003 if (ret) { 7004 const char *reason = "unknown"; 7005 7006 /* reasons for EINVAL from nvlist_lookup_string() */ 7007 if (userprop == NULL) 7008 reason = "userprop is NULL"; 7009 else if (userprop->nvl_priv == NULL) 7010 reason = "userprop->nvl_priv is NULL"; 7011 else if (name == NULL) 7012 reason = "name or userprop is NULL"; 7013 7014 fprintf(stderr, "xget: get_userprop: property value lookup " 7015 "failed for property '%s' in zfs '%s': %s reason=%s\n", 7016 *name, fsname, strerror(ret), reason); 7017 goto err_userprop; 7018 } 7019 *value = strdup(*value); 7020 assert(value != NULL); 7021 7022 /* get source */ 7023 if (src) 7024 *src = get_property_source(zfh, prop); 7025 return 0; 7026 7027 err_userprop: 7028 free(*name); 7029 *name = NULL; 7030 *value = NULL; 7031 return 1; 7032 } 7033 7034 static void 7035 print_property(zfs_handle_t *zfh, const char *propname, char *propval, 7036 zprop_source_t src) 7037 { 7038 char *src_name = NULL; 7039 7040 switch ((int)src) { 7041 case ZPROP_SRC_NONE: 7042 src_name = "-"; 7043 break; 7044 case ZPROP_SRC_DEFAULT: 7045 src_name = "default"; 7046 break; 7047 case ZPROP_SRC_LOCAL: 7048 src_name = "local"; 7049 break; 7050 case ZPROP_SRC_TEMPORARY: 7051 src_name = "temporary"; 7052 break; 7053 case ZPROP_SRC_INHERITED: 7054 src_name = "inherited"; 7055 break; 7056 case ZPROP_SRC_RECEIVED: 7057 src_name = "received"; 7058 break; 7059 default: 7060 src_name = "unknown"; 7061 break; 7062 } 7063 printf("%s\t%s\t%s\t%s\n", zfs_get_name(zfh), propname, propval, 7064 src_name); 7065 } 7066 7067 /* system property */ 7068 int 7069 xget_print_system_props(int prop_id, void *data) 7070 { 7071 zfs_handle_t *zfh = (zfs_handle_t *)data; 7072 char srcbuf[ZFS_MAX_DATASET_NAME_LEN]; 7073 char buf[ZFS_MAXPROPLEN]; 7074 zprop_source_t src = NULL; 7075 int ret; 7076 7077 if (prop_id != ZPROP_INVAL) { 7078 ret = zfs_prop_get(zfh, prop_id, buf, sizeof(buf), 7079 &src, srcbuf, sizeof(srcbuf), B_TRUE); 7080 if (ret) { 7081 /* property not found */ 7082 print_property(zfh, zfs_prop_to_name(prop_id), "-", 7083 ZPROP_SRC_NONE); 7084 } else { 7085 print_property(zfh, zfs_prop_to_name(prop_id), buf, 7086 src); 7087 } 7088 return ZPROP_CONT; 7089 } 7090 return ZPROP_INVAL; 7091 } 7092 7093 void 7094 xget_print_user_props(zfs_handle_t *zfh, 7095 const char *propname, 7096 char **value, 7097 zprop_source_t src) 7098 { 7099 7100 nvlist_t *props; 7101 nvpair_t *prop = NULL; 7102 char *tvalue = NULL; 7103 char *name = NULL; 7104 const char *fsname = zfs_get_name(zfh); 7105 7106 /* user property */ 7107 props = zfs_get_user_props(zfh); 7108 while ((prop = nvlist_next_nvpair(props, prop))) { 7109 if (get_userprop(zfh, prop, &name, &tvalue, NULL)) { 7110 fprintf(stderr, "xget: get_property failed for %s\n", 7111 fsname); 7112 break; 7113 } 7114 if (strcmp(name, propname) == 0 || 7115 strcmp(propname, "all") == 0) { 7116 /* property found */ 7117 src = get_property_source(zfh, prop); 7118 print_property(zfh, name, tvalue, src); 7119 } 7120 free(name); 7121 free(tvalue); 7122 } 7123 } 7124 7125 int 7126 xget(zfs_handle_t *zfh, void *ctx) 7127 { 7128 const char *fsname = zfs_get_name(zfh); 7129 int ret; 7130 zprop_source_t src = ZPROP_SRC_NONE; 7131 7132 if (zfs_get_type(zfh) == ZFS_TYPE_FILESYSTEM) { 7133 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 7134 ret = zfs_iter_snapshots(zfh, xget, ctx); 7135 if (ret) { 7136 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7137 libzfs_error_description(g_zfs)); 7138 exit(1); 7139 } 7140 } 7141 7142 if (dataset_type & ZFS_TYPE_BOOKMARK) { 7143 ret = zfs_iter_bookmarks(zfh, xget, ctx); 7144 if (ret) { 7145 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7146 libzfs_error_description(g_zfs)); 7147 exit(1); 7148 } 7149 } 7150 7151 if (zfs_iter_filesystems(zfh, xget, ctx)) { 7152 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7153 libzfs_error_description(g_zfs)); 7154 exit(1); 7155 } 7156 } 7157 7158 if (!(zfs_get_type(zfh) & dataset_type)) { 7159 zfs_close(zfh); 7160 return 0; 7161 } 7162 7163 /* 7164 * print requested properties 7165 */ 7166 char delimeter[] = ","; 7167 char *propval = NULL; 7168 char *propnames = strdup((char *)ctx); 7169 assert(propnames != NULL); 7170 char *propname = strtok(propnames, delimeter); 7171 7172 while (propname != NULL) { 7173 if (strcmp(propname, "all") == 0) { 7174 zprop_iter(xget_print_system_props, zfh, 7175 B_FALSE, B_FALSE, zfs_get_type(zfh)); 7176 } else { 7177 xget_print_system_props(zfs_name_to_prop(propname), 7178 zfh); 7179 } 7180 xget_print_user_props(zfh, propname, &propval, src); 7181 propname = strtok(NULL, delimeter); 7182 } 7183 free(propnames); 7184 7185 zfs_close(zfh); 7186 return 0; 7187 } 7188 7189 static int 7190 zfs_do_xget(int argc, char **argv) 7191 { 7192 char *rootfs = NULL; 7193 char *path = NULL; 7194 dataset_type = ZFS_TYPE_FILESYSTEM; 7195 char *properties = "all"; 7196 char c; 7197 7198 while ((c = getopt(argc, argv, "habsS:r:p:v")) != -1) { 7199 switch (c) { 7200 case 'h': /* help */ 7201 usage(B_TRUE); 7202 return 1; 7203 case 'a': /* print fs and snapshots */ 7204 dataset_type |= ZFS_TYPE_SNAPSHOT | ZFS_TYPE_BOOKMARK; 7205 break; 7206 case 'b': /* print bookmarks only */ 7207 dataset_type = ZFS_TYPE_BOOKMARK; 7208 break; 7209 case 'r': /* rid */ 7210 rootfs = get_rid_fs(optarg); 7211 break; 7212 case 's': /* print snapshots only */ 7213 dataset_type = ZFS_TYPE_SNAPSHOT; 7214 break; 7215 case 'S': 7216 path = get_space_path(optarg); 7217 printf("%s\n", path); 7218 exit(0); 7219 case 'p': 7220 properties = optarg; 7221 break; 7222 case 'v': 7223 fprintf(stderr, "xget version %s\n", XVERSION); 7224 exit(0); 7225 default: 7226 (void) fprintf(stderr, 7227 gettext("invalid option '%c'\n"), optopt); 7228 usage(B_FALSE); 7229 } 7230 } 7231 7232 argc -= optind; 7233 argv += optind; 7234 7235 if (!rootfs) 7236 rootfs = *argv; 7237 7238 if (rootfs == NULL) { 7239 return zfs_iter_root(g_zfs, xget, properties); 7240 } else { 7241 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 7242 ZFS_TYPE_FILESYSTEM); 7243 if (!zfsh) { 7244 fprintf(stderr, "zfs_open failed for %s\n", 7245 rootfs); 7246 exit(1); 7247 } 7248 return xget(zfsh, properties); 7249 } 7250 } 7251 7252 static int 7253 zfs_do_diff(int argc, char **argv) 7254 { 7255 zfs_handle_t *zhp; 7256 int flags = 0; 7257 char *tosnap = NULL; 7258 char *fromsnap = NULL; 7259 char *atp, *copy; 7260 int err = 0; 7261 int c; 7262 7263 while ((c = getopt(argc, argv, "FHt")) != -1) { 7264 switch (c) { 7265 case 'F': 7266 flags |= ZFS_DIFF_CLASSIFY; 7267 break; 7268 case 'H': 7269 flags |= ZFS_DIFF_PARSEABLE; 7270 break; 7271 case 't': 7272 flags |= ZFS_DIFF_TIMESTAMP; 7273 break; 7274 default: 7275 (void) fprintf(stderr, 7276 gettext("invalid option '%c'\n"), optopt); 7277 usage(B_FALSE); 7278 } 7279 } 7280 7281 argc -= optind; 7282 argv += optind; 7283 7284 if (argc < 1) { 7285 (void) fprintf(stderr, 7286 gettext("must provide at least one snapshot name\n")); 7287 usage(B_FALSE); 7288 } 7289 7290 if (argc > 2) { 7291 (void) fprintf(stderr, gettext("too many arguments\n")); 7292 usage(B_FALSE); 7293 } 7294 7295 fromsnap = argv[0]; 7296 tosnap = (argc == 2) ? argv[1] : NULL; 7297 7298 copy = NULL; 7299 if (*fromsnap != '@') 7300 copy = strdup(fromsnap); 7301 else if (tosnap) 7302 copy = strdup(tosnap); 7303 if (copy == NULL) 7304 usage(B_FALSE); 7305 7306 if ((atp = strchr(copy, '@')) != NULL) 7307 *atp = '\0'; 7308 7309 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 7310 return (1); 7311 7312 free(copy); 7313 7314 /* 7315 * Ignore SIGPIPE so that the library can give us 7316 * information on any failure 7317 */ 7318 (void) sigignore(SIGPIPE); 7319 7320 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7321 7322 zfs_close(zhp); 7323 7324 return (err != 0); 7325 } 7326 7327 /* 7328 * zfs bookmark <fs@snap> <fs#bmark> 7329 * 7330 * Creates a bookmark with the given name from the given snapshot. 7331 */ 7332 static int 7333 zfs_do_bookmark(int argc, char **argv) 7334 { 7335 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 7336 zfs_handle_t *zhp; 7337 nvlist_t *nvl; 7338 int ret = 0; 7339 int c; 7340 7341 /* check options */ 7342 while ((c = getopt(argc, argv, "")) != -1) { 7343 switch (c) { 7344 case '?': 7345 (void) fprintf(stderr, 7346 gettext("invalid option '%c'\n"), optopt); 7347 goto usage; 7348 } 7349 } 7350 7351 argc -= optind; 7352 argv += optind; 7353 7354 /* check number of arguments */ 7355 if (argc < 1) { 7356 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7357 goto usage; 7358 } 7359 if (argc < 2) { 7360 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7361 goto usage; 7362 } 7363 7364 if (strchr(argv[1], '#') == NULL) { 7365 (void) fprintf(stderr, 7366 gettext("invalid bookmark name '%s' -- " 7367 "must contain a '#'\n"), argv[1]); 7368 goto usage; 7369 } 7370 7371 if (argv[0][0] == '@') { 7372 /* 7373 * Snapshot name begins with @. 7374 * Default to same fs as bookmark. 7375 */ 7376 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7377 *strchr(snapname, '#') = '\0'; 7378 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7379 } else { 7380 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7381 } 7382 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7383 if (zhp == NULL) 7384 goto usage; 7385 zfs_close(zhp); 7386 7387 7388 nvl = fnvlist_alloc(); 7389 fnvlist_add_string(nvl, argv[1], snapname); 7390 ret = lzc_bookmark(nvl, NULL); 7391 fnvlist_free(nvl); 7392 7393 if (ret != 0) { 7394 const char *err_msg; 7395 char errbuf[1024]; 7396 7397 (void) snprintf(errbuf, sizeof (errbuf), 7398 dgettext(TEXT_DOMAIN, 7399 "cannot create bookmark '%s'"), argv[1]); 7400 7401 switch (ret) { 7402 case EXDEV: 7403 err_msg = "bookmark is in a different pool"; 7404 break; 7405 case EEXIST: 7406 err_msg = "bookmark exists"; 7407 break; 7408 case EINVAL: 7409 err_msg = "invalid argument"; 7410 break; 7411 case ENOTSUP: 7412 err_msg = "bookmark feature not enabled"; 7413 break; 7414 case ENOSPC: 7415 err_msg = "out of space"; 7416 break; 7417 default: 7418 err_msg = "unknown error"; 7419 break; 7420 } 7421 (void) fprintf(stderr, "%s: %s\n", errbuf, 7422 dgettext(TEXT_DOMAIN, err_msg)); 7423 } 7424 7425 return (ret != 0); 7426 7427 usage: 7428 usage(B_FALSE); 7429 return (-1); 7430 } 7431 7432 int 7433 main(int argc, char **argv) 7434 { 7435 int ret = 0; 7436 int i; 7437 char *progname; 7438 char *cmdname; 7439 7440 (void) setlocale(LC_ALL, ""); 7441 (void) textdomain(TEXT_DOMAIN); 7442 7443 opterr = 0; 7444 7445 if ((g_zfs = libzfs_init()) == NULL) { 7446 (void) fprintf(stderr, gettext("internal error: failed to " 7447 "initialize ZFS library\n")); 7448 return (1); 7449 } 7450 7451 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7452 7453 libzfs_print_on_error(g_zfs, B_TRUE); 7454 7455 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7456 (void) fprintf(stderr, gettext("internal error: unable to " 7457 "open %s\n"), MNTTAB); 7458 return (1); 7459 } 7460 7461 /* Log ZFS commands to syslog. */ 7462 if (argc > 1) { 7463 char *fullcmd, *tmp; 7464 int full_arg_len = 1; 7465 int arg_len; 7466 7467 openlog("zfs", LOG_PID, LOG_DAEMON); 7468 for (i = 0; i < argc; i++) { 7469 full_arg_len += strlen(argv[i]) + 1; 7470 } 7471 fullcmd = malloc(full_arg_len); 7472 assert(fullcmd != NULL); 7473 7474 tmp = fullcmd; 7475 for (i = 0; i < argc; i++) { 7476 arg_len = strlen(argv[i]); 7477 strncpy(tmp, argv[i], arg_len); 7478 tmp += arg_len; 7479 strcpy(tmp, " "); 7480 ++tmp; 7481 } 7482 syslog(LOG_INFO, "%s", fullcmd); 7483 closelog(); 7484 free(fullcmd); 7485 } 7486 7487 /* 7488 * This command also doubles as the /etc/fs mount and unmount program. 7489 * Determine if we should take this behavior based on argv[0]. 7490 */ 7491 progname = basename(argv[0]); 7492 if (strcmp(progname, "mount") == 0) { 7493 ret = manual_mount(argc, argv); 7494 } else if (strcmp(progname, "umount") == 0) { 7495 ret = manual_unmount(argc, argv); 7496 } else { 7497 /* 7498 * Make sure the user has specified some command. 7499 */ 7500 if (argc < 2) { 7501 (void) fprintf(stderr, gettext("missing command\n")); 7502 usage(B_FALSE); 7503 } 7504 7505 cmdname = argv[1]; 7506 7507 /* 7508 * The 'umount' command is an alias for 'unmount' 7509 */ 7510 if (strcmp(cmdname, "umount") == 0) 7511 cmdname = "unmount"; 7512 7513 /* 7514 * The 'recv' command is an alias for 'receive' 7515 */ 7516 if (strcmp(cmdname, "recv") == 0) 7517 cmdname = "receive"; 7518 7519 /* 7520 * The 'snap' command is an alias for 'snapshot' 7521 */ 7522 if (strcmp(cmdname, "snap") == 0) 7523 cmdname = "snapshot"; 7524 7525 /* 7526 * Special case '-?' 7527 */ 7528 if (strcmp(cmdname, "-?") == 0) 7529 usage(B_TRUE); 7530 7531 /* 7532 * Run the appropriate command. 7533 */ 7534 libzfs_mnttab_cache(g_zfs, B_TRUE); 7535 if (find_command_idx(cmdname, &i) == 0) { 7536 current_command = &command_table[i]; 7537 ret = command_table[i].func(argc - 1, argv + 1); 7538 } else if (strchr(cmdname, '=') != NULL) { 7539 verify(find_command_idx("set", &i) == 0); 7540 current_command = &command_table[i]; 7541 ret = command_table[i].func(argc, argv); 7542 } else { 7543 (void) fprintf(stderr, gettext("unrecognized " 7544 "command '%s'\n"), cmdname); 7545 usage(B_FALSE); 7546 } 7547 libzfs_mnttab_cache(g_zfs, B_FALSE); 7548 } 7549 7550 (void) fclose(mnttab_file); 7551 7552 if (ret == 0 && log_history) 7553 (void) zpool_log_history(g_zfs, history_str); 7554 7555 libzfs_fini(g_zfs); 7556 7557 /* 7558 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7559 * for the purposes of running ::findleaks. 7560 */ 7561 if (getenv("ZFS_ABORT") != NULL) { 7562 (void) printf("dumping core by request\n"); 7563 abort(); 7564 } 7565 7566 return (ret); 7567 } 7568