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 61 #include <libzfs.h> 62 #include <libzfs_core.h> 63 #include <zfs_prop.h> 64 #include <zfs_deleg.h> 65 #include <libuutil.h> 66 #include <aclutils.h> 67 #include <directory.h> 68 #include <idmap.h> 69 #include <limits.h> 70 71 #include "zfs_iter.h" 72 #include "zfs_util.h" 73 #include "zfs_comutil.h" 74 75 #define XVERSION "1.1" 76 #define STG_POOL_FILE "/etc/stg/self.pool" 77 #define POOL_NAME_LEN 5 78 79 static int dataset_type = 0; /* decides which datasets we should print */ 80 81 libzfs_handle_t *g_zfs; 82 83 static FILE *mnttab_file; 84 static char history_str[HIS_MAX_RECORD_LEN]; 85 static boolean_t log_history = B_TRUE; 86 87 static int zfs_do_clone(int argc, char **argv); 88 static int zfs_do_create(int argc, char **argv); 89 static int zfs_do_destroy(int argc, char **argv); 90 static int zfs_do_get(int argc, char **argv); 91 static int zfs_do_inherit(int argc, char **argv); 92 static int zfs_do_list(int argc, char **argv); 93 static int zfs_do_mount(int argc, char **argv); 94 static int zfs_do_rename(int argc, char **argv); 95 static int zfs_do_rollback(int argc, char **argv); 96 static int zfs_do_set(int argc, char **argv); 97 static int zfs_do_upgrade(int argc, char **argv); 98 static int zfs_do_snapshot(int argc, char **argv); 99 static int zfs_do_unmount(int argc, char **argv); 100 static int zfs_do_share(int argc, char **argv); 101 static int zfs_do_unshare(int argc, char **argv); 102 static int zfs_do_send(int argc, char **argv); 103 static int zfs_do_receive(int argc, char **argv); 104 static int zfs_do_promote(int argc, char **argv); 105 static int zfs_do_userspace(int argc, char **argv); 106 static int zfs_do_allow(int argc, char **argv); 107 static int zfs_do_unallow(int argc, char **argv); 108 static int zfs_do_hold(int argc, char **argv); 109 static int zfs_do_holds(int argc, char **argv); 110 static int zfs_do_release(int argc, char **argv); 111 static int zfs_do_diff(int argc, char **argv); 112 static int zfs_do_bookmark(int argc, char **argv); 113 static int zfs_do_xlist(int argc, char **argv); 114 static int zfs_do_xget(int argc, char **argv); 115 116 /* 117 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 118 */ 119 120 #ifdef DEBUG 121 const char * 122 _umem_debug_init(void) 123 { 124 return ("default,verbose"); /* $UMEM_DEBUG setting */ 125 } 126 127 const char * 128 _umem_logging_init(void) 129 { 130 return ("fail,contents"); /* $UMEM_LOGGING setting */ 131 } 132 #endif 133 134 typedef enum { 135 HELP_CLONE, 136 HELP_CREATE, 137 HELP_DESTROY, 138 HELP_GET, 139 HELP_INHERIT, 140 HELP_UPGRADE, 141 HELP_LIST, 142 HELP_MOUNT, 143 HELP_PROMOTE, 144 HELP_RECEIVE, 145 HELP_RENAME, 146 HELP_ROLLBACK, 147 HELP_SEND, 148 HELP_SET, 149 HELP_SHARE, 150 HELP_SNAPSHOT, 151 HELP_UNMOUNT, 152 HELP_UNSHARE, 153 HELP_ALLOW, 154 HELP_UNALLOW, 155 HELP_USERSPACE, 156 HELP_GROUPSPACE, 157 HELP_HOLD, 158 HELP_HOLDS, 159 HELP_RELEASE, 160 HELP_DIFF, 161 HELP_BOOKMARK, 162 HELP_XLIST, 163 HELP_XGET, 164 } zfs_help_t; 165 166 typedef struct zfs_command { 167 const char *name; 168 int (*func)(int argc, char **argv); 169 zfs_help_t usage; 170 } zfs_command_t; 171 172 /* 173 * Master command table. Each ZFS command has a name, associated function, and 174 * usage message. The usage messages need to be internationalized, so we have 175 * to have a function to return the usage message based on a command index. 176 * 177 * These commands are organized according to how they are displayed in the usage 178 * message. An empty command (one with a NULL name) indicates an empty line in 179 * the generic usage message. 180 */ 181 static zfs_command_t command_table[] = { 182 { "create", zfs_do_create, HELP_CREATE }, 183 { "destroy", zfs_do_destroy, HELP_DESTROY }, 184 { NULL }, 185 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 186 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 187 { "clone", zfs_do_clone, HELP_CLONE }, 188 { "promote", zfs_do_promote, HELP_PROMOTE }, 189 { "rename", zfs_do_rename, HELP_RENAME }, 190 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 191 { NULL }, 192 { "list", zfs_do_list, HELP_LIST }, 193 { NULL }, 194 { "set", zfs_do_set, HELP_SET }, 195 { "get", zfs_do_get, HELP_GET }, 196 { "inherit", zfs_do_inherit, HELP_INHERIT }, 197 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 198 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 199 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 200 { NULL }, 201 { "mount", zfs_do_mount, HELP_MOUNT }, 202 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 203 { "share", zfs_do_share, HELP_SHARE }, 204 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 205 { NULL }, 206 { "send", zfs_do_send, HELP_SEND }, 207 { "receive", zfs_do_receive, HELP_RECEIVE }, 208 { NULL }, 209 { "allow", zfs_do_allow, HELP_ALLOW }, 210 { NULL }, 211 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 212 { NULL }, 213 { "hold", zfs_do_hold, HELP_HOLD }, 214 { "holds", zfs_do_holds, HELP_HOLDS }, 215 { "release", zfs_do_release, HELP_RELEASE }, 216 { "diff", zfs_do_diff, HELP_DIFF }, 217 { "xlist", zfs_do_xlist, HELP_XLIST }, 218 { "xget", zfs_do_xget, HELP_XGET }, 219 }; 220 221 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 222 223 zfs_command_t *current_command; 224 225 static const char * 226 get_usage(zfs_help_t idx) 227 { 228 switch (idx) { 229 case HELP_CLONE: 230 return (gettext("\tclone [-p] [-o property=value] ... " 231 "<snapshot> <filesystem|volume>\n")); 232 case HELP_CREATE: 233 return (gettext("\tcreate [-p] [-o property=value] ... " 234 "<filesystem>\n" 235 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 236 "-V <size> <volume>\n")); 237 case HELP_DESTROY: 238 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 239 "\tdestroy [-dnpRrv] " 240 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 241 "\tdestroy <filesystem|volume>#<bookmark>\n")); 242 case HELP_GET: 243 return (gettext("\tget [-rHp] [-d max] " 244 "[-o \"all\" | field[,...]]\n" 245 "\t [-t type[,...]] [-s source[,...]]\n" 246 "\t <\"all\" | property[,...]> " 247 "[filesystem|volume|snapshot] ...\n")); 248 case HELP_INHERIT: 249 return (gettext("\tinherit [-rS] <property> " 250 "<filesystem|volume|snapshot> ...\n")); 251 case HELP_UPGRADE: 252 return (gettext("\tupgrade [-v]\n" 253 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 254 case HELP_LIST: 255 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 256 "[-s property]...\n\t [-S property]... [-t type[,...]] " 257 "[filesystem|volume|snapshot] ...\n")); 258 case HELP_MOUNT: 259 return (gettext("\tmount\n" 260 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 261 case HELP_PROMOTE: 262 return (gettext("\tpromote <clone-filesystem>\n")); 263 case HELP_RECEIVE: 264 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 265 "snapshot>\n" 266 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 267 "<filesystem>\n" 268 "\treceive -A <filesystem|volume>\n")); 269 case HELP_RENAME: 270 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 271 "<filesystem|volume|snapshot>\n" 272 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 273 "\trename -r <snapshot> <snapshot>\n")); 274 case HELP_ROLLBACK: 275 return (gettext("\trollback [-rRf] <snapshot>\n")); 276 case HELP_SEND: 277 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 278 "<snapshot>\n" 279 "\tsend [-Le] [-i snapshot|bookmark] " 280 "<filesystem|volume|snapshot>\n" 281 "\tsend [-nvPe] -t <receive_resume_token>\n")); 282 case HELP_SET: 283 return (gettext("\tset <property=value> ... " 284 "<filesystem|volume|snapshot> ...\n")); 285 case HELP_SHARE: 286 return (gettext("\tshare <-a | filesystem>\n")); 287 case HELP_SNAPSHOT: 288 return (gettext("\tsnapshot [-r] [-o property=value] ... " 289 "<filesystem|volume>@<snap> ...\n")); 290 case HELP_UNMOUNT: 291 return (gettext("\tunmount [-f] " 292 "<-a | filesystem|mountpoint>\n")); 293 case HELP_UNSHARE: 294 return (gettext("\tunshare " 295 "<-a | filesystem|mountpoint>\n")); 296 case HELP_ALLOW: 297 return (gettext("\tallow <filesystem|volume>\n" 298 "\tallow [-ldug] " 299 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 300 "\t <filesystem|volume>\n" 301 "\tallow [-ld] -e <perm|@setname>[,...] " 302 "<filesystem|volume>\n" 303 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 304 "\tallow -s @setname <perm|@setname>[,...] " 305 "<filesystem|volume>\n")); 306 case HELP_UNALLOW: 307 return (gettext("\tunallow [-rldug] " 308 "<\"everyone\"|user|group>[,...]\n" 309 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 310 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 311 "<filesystem|volume>\n" 312 "\tunallow [-r] -c [<perm|@setname>[,...]] " 313 "<filesystem|volume>\n" 314 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 315 "<filesystem|volume>\n")); 316 case HELP_USERSPACE: 317 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 318 "[-s field] ...\n" 319 "\t [-S field] ... [-t type[,...]] " 320 "<filesystem|snapshot>\n")); 321 case HELP_GROUPSPACE: 322 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 323 "[-s field] ...\n" 324 "\t [-S field] ... [-t type[,...]] " 325 "<filesystem|snapshot>\n")); 326 case HELP_HOLD: 327 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 328 case HELP_HOLDS: 329 return (gettext("\tholds [-r] <snapshot> ...\n")); 330 case HELP_RELEASE: 331 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 332 case HELP_DIFF: 333 return (gettext("\tdiff [-FHt] <snapshot> " 334 "[snapshot|filesystem]\n")); 335 case HELP_XLIST: 336 return (gettext("\n\txlist [-a] [-r <rid>] [-s] [-S <rid>] " 337 "[filesystem]\n\n" 338 "\t-a: print both, snapshots and filesystems\n" 339 "\t-r: iterate over rid fs\n" 340 "\t-s: print snapshots only\n" 341 "\t-S: print space path\n" 342 "\t-v: print rzfs version\n" 343 "\nDefault: print filesystems only\n")); 344 case HELP_XGET: 345 return (gettext("\n\txget [-a] [-r <rid>] [-s] [-S <rid>] " 346 "[-p <prop1,prop2...>] [filesystem]\n\n" 347 "\t-a: print both, snapshots and filesystems\n" 348 "\t-p: list of properties to print\n" 349 "\t-r: iterate over rid fs\n" 350 "\t-s: print snapshots only\n" 351 "\t-v: print rzfs version\n" 352 "\nDefault: print filesystems only\n")); 353 case HELP_BOOKMARK: 354 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 355 } 356 357 abort(); 358 /* NOTREACHED */ 359 } 360 361 void 362 nomem(void) 363 { 364 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 365 exit(1); 366 } 367 368 /* 369 * Utility function to guarantee malloc() success. 370 */ 371 372 void * 373 safe_malloc(size_t size) 374 { 375 void *data; 376 377 if ((data = calloc(1, size)) == NULL) 378 nomem(); 379 380 return (data); 381 } 382 383 static char * 384 safe_strdup(char *str) 385 { 386 char *dupstr = strdup(str); 387 388 if (dupstr == NULL) 389 nomem(); 390 391 return (dupstr); 392 } 393 394 /* 395 * Callback routine that will print out information for each of 396 * the properties. 397 */ 398 static int 399 usage_prop_cb(int prop, void *cb) 400 { 401 FILE *fp = cb; 402 403 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 404 405 if (zfs_prop_readonly(prop)) 406 (void) fprintf(fp, " NO "); 407 else 408 (void) fprintf(fp, "YES "); 409 410 if (zfs_prop_inheritable(prop)) 411 (void) fprintf(fp, " YES "); 412 else 413 (void) fprintf(fp, " NO "); 414 415 if (zfs_prop_values(prop) == NULL) 416 (void) fprintf(fp, "-\n"); 417 else 418 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 419 420 return (ZPROP_CONT); 421 } 422 423 /* 424 * Display usage message. If we're inside a command, display only the usage for 425 * that command. Otherwise, iterate over the entire command table and display 426 * a complete usage message. 427 */ 428 static void 429 usage(boolean_t requested) 430 { 431 int i; 432 boolean_t show_properties = B_FALSE; 433 FILE *fp = requested ? stdout : stderr; 434 435 if (current_command == NULL) { 436 437 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 438 (void) fprintf(fp, 439 gettext("where 'command' is one of the following:\n\n")); 440 441 for (i = 0; i < NCOMMAND; i++) { 442 if (command_table[i].name == NULL) 443 (void) fprintf(fp, "\n"); 444 else 445 (void) fprintf(fp, "%s", 446 get_usage(command_table[i].usage)); 447 } 448 449 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 450 "pool/[dataset/]*dataset[@name]\n")); 451 } else { 452 (void) fprintf(fp, gettext("usage:\n")); 453 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 454 } 455 456 if (current_command != NULL && 457 (strcmp(current_command->name, "set") == 0 || 458 strcmp(current_command->name, "get") == 0 || 459 strcmp(current_command->name, "inherit") == 0 || 460 strcmp(current_command->name, "list") == 0)) 461 show_properties = B_TRUE; 462 463 if (show_properties) { 464 (void) fprintf(fp, 465 gettext("\nThe following properties are supported:\n")); 466 467 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 468 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 469 470 /* Iterate over all properties */ 471 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 472 ZFS_TYPE_DATASET); 473 474 (void) fprintf(fp, "\t%-15s ", "userused@..."); 475 (void) fprintf(fp, " NO NO <size>\n"); 476 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 477 (void) fprintf(fp, " NO NO <size>\n"); 478 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 479 (void) fprintf(fp, "YES NO <size> | none\n"); 480 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 481 (void) fprintf(fp, "YES NO <size> | none\n"); 482 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 483 (void) fprintf(fp, " NO NO <size>\n"); 484 485 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 486 "with standard units such as K, M, G, etc.\n")); 487 (void) fprintf(fp, gettext("\nUser-defined properties can " 488 "be specified by using a name containing a colon (:).\n")); 489 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 490 "properties must be appended with\n" 491 "a user or group specifier of one of these forms:\n" 492 " POSIX name (eg: \"matt\")\n" 493 " POSIX id (eg: \"126829\")\n" 494 " SMB name@domain (eg: \"matt@sun\")\n" 495 " SMB SID (eg: \"S-1-234-567-89\")\n")); 496 } else { 497 (void) fprintf(fp, 498 gettext("\nFor the property list, run: %s\n"), 499 "zfs set|get"); 500 (void) fprintf(fp, 501 gettext("\nFor the delegated permission list, run: %s\n"), 502 "zfs allow|unallow"); 503 } 504 505 /* 506 * See comments at end of main(). 507 */ 508 if (getenv("ZFS_ABORT") != NULL) { 509 (void) printf("dumping core by request\n"); 510 abort(); 511 } 512 513 exit(requested ? 0 : 2); 514 } 515 516 /* 517 * Take a property=value argument string and add it to the given nvlist. 518 * Modifies the argument inplace. 519 */ 520 static int 521 parseprop(nvlist_t *props, char *propname) 522 { 523 char *propval, *strval; 524 525 if ((propval = strchr(propname, '=')) == NULL) { 526 (void) fprintf(stderr, gettext("missing " 527 "'=' for property=value argument\n")); 528 return (-1); 529 } 530 *propval = '\0'; 531 propval++; 532 if (nvlist_lookup_string(props, propname, &strval) == 0) { 533 (void) fprintf(stderr, gettext("property '%s' " 534 "specified multiple times\n"), propname); 535 return (-1); 536 } 537 if (nvlist_add_string(props, propname, propval) != 0) 538 nomem(); 539 return (0); 540 } 541 542 static int 543 parse_depth(char *opt, int *flags) 544 { 545 char *tmp; 546 int depth; 547 548 depth = (int)strtol(opt, &tmp, 0); 549 if (*tmp) { 550 (void) fprintf(stderr, 551 gettext("%s is not an integer\n"), optarg); 552 usage(B_FALSE); 553 } 554 if (depth < 0) { 555 (void) fprintf(stderr, 556 gettext("Depth can not be negative.\n")); 557 usage(B_FALSE); 558 } 559 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 560 return (depth); 561 } 562 563 #define PROGRESS_DELAY 2 /* seconds */ 564 565 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"; 566 static time_t pt_begin; 567 static char *pt_header = NULL; 568 static boolean_t pt_shown; 569 570 static void 571 start_progress_timer(void) 572 { 573 pt_begin = time(NULL) + PROGRESS_DELAY; 574 pt_shown = B_FALSE; 575 } 576 577 static void 578 set_progress_header(char *header) 579 { 580 assert(pt_header == NULL); 581 pt_header = safe_strdup(header); 582 if (pt_shown) { 583 (void) printf("%s: ", header); 584 (void) fflush(stdout); 585 } 586 } 587 588 static void 589 update_progress(char *update) 590 { 591 if (!pt_shown && time(NULL) > pt_begin) { 592 int len = strlen(update); 593 594 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 595 pt_reverse); 596 (void) fflush(stdout); 597 pt_shown = B_TRUE; 598 } else if (pt_shown) { 599 int len = strlen(update); 600 601 (void) printf("%s%*.*s", update, len, len, pt_reverse); 602 (void) fflush(stdout); 603 } 604 } 605 606 static void 607 finish_progress(char *done) 608 { 609 if (pt_shown) { 610 (void) printf("%s\n", done); 611 (void) fflush(stdout); 612 } 613 free(pt_header); 614 pt_header = NULL; 615 } 616 617 /* 618 * Check if the dataset is mountable and should be automatically mounted. 619 */ 620 static boolean_t 621 should_auto_mount(zfs_handle_t *zhp) 622 { 623 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 624 return (B_FALSE); 625 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 626 } 627 628 /* 629 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 630 * 631 * Given an existing dataset, create a writable copy whose initial contents 632 * are the same as the source. The newly created dataset maintains a 633 * dependency on the original; the original cannot be destroyed so long as 634 * the clone exists. 635 * 636 * The '-p' flag creates all the non-existing ancestors of the target first. 637 */ 638 static int 639 zfs_do_clone(int argc, char **argv) 640 { 641 zfs_handle_t *zhp = NULL; 642 boolean_t parents = B_FALSE; 643 nvlist_t *props; 644 int ret = 0; 645 int c; 646 647 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 648 nomem(); 649 650 /* check options */ 651 while ((c = getopt(argc, argv, "o:p")) != -1) { 652 switch (c) { 653 case 'o': 654 if (parseprop(props, optarg) != 0) 655 return (1); 656 break; 657 case 'p': 658 parents = B_TRUE; 659 break; 660 case '?': 661 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 662 optopt); 663 goto usage; 664 } 665 } 666 667 argc -= optind; 668 argv += optind; 669 670 /* check number of arguments */ 671 if (argc < 1) { 672 (void) fprintf(stderr, gettext("missing source dataset " 673 "argument\n")); 674 goto usage; 675 } 676 if (argc < 2) { 677 (void) fprintf(stderr, gettext("missing target dataset " 678 "argument\n")); 679 goto usage; 680 } 681 if (argc > 2) { 682 (void) fprintf(stderr, gettext("too many arguments\n")); 683 goto usage; 684 } 685 686 /* open the source dataset */ 687 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 688 return (1); 689 690 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 691 ZFS_TYPE_VOLUME)) { 692 /* 693 * Now create the ancestors of the target dataset. If the 694 * target already exists and '-p' option was used we should not 695 * complain. 696 */ 697 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 698 ZFS_TYPE_VOLUME)) 699 return (0); 700 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 701 return (1); 702 } 703 704 /* pass to libzfs */ 705 ret = zfs_clone(zhp, argv[1], props); 706 707 /* create the mountpoint if necessary */ 708 if (ret == 0) { 709 zfs_handle_t *clone; 710 711 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 712 if (clone != NULL) { 713 /* 714 * If the user doesn't want the dataset 715 * automatically mounted, then skip the mount/share 716 * step. 717 */ 718 if (should_auto_mount(clone)) { 719 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 720 (void) fprintf(stderr, gettext("clone " 721 "successfully created, " 722 "but not mounted\n")); 723 } else if ((ret = zfs_share(clone)) != 0) { 724 (void) fprintf(stderr, gettext("clone " 725 "successfully created, " 726 "but not shared\n")); 727 } 728 } 729 zfs_close(clone); 730 } 731 } 732 733 zfs_close(zhp); 734 nvlist_free(props); 735 736 return (!!ret); 737 738 usage: 739 if (zhp) 740 zfs_close(zhp); 741 nvlist_free(props); 742 usage(B_FALSE); 743 return (-1); 744 } 745 746 /* 747 * zfs create [-p] [-o prop=value] ... fs 748 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 749 * 750 * Create a new dataset. This command can be used to create filesystems 751 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 752 * For volumes, the user must specify a size to be used. 753 * 754 * The '-s' flag applies only to volumes, and indicates that we should not try 755 * to set the reservation for this volume. By default we set a reservation 756 * equal to the size for any volume. For pools with SPA_VERSION >= 757 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 758 * 759 * The '-p' flag creates all the non-existing ancestors of the target first. 760 */ 761 static int 762 zfs_do_create(int argc, char **argv) 763 { 764 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 765 zfs_handle_t *zhp = NULL; 766 uint64_t volsize = 0; 767 int c; 768 boolean_t noreserve = B_FALSE; 769 boolean_t bflag = B_FALSE; 770 boolean_t parents = B_FALSE; 771 int ret = 1; 772 nvlist_t *props; 773 uint64_t intval; 774 775 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 776 nomem(); 777 778 /* check options */ 779 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 780 switch (c) { 781 case 'V': 782 type = ZFS_TYPE_VOLUME; 783 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 784 (void) fprintf(stderr, gettext("bad volume " 785 "size '%s': %s\n"), optarg, 786 libzfs_error_description(g_zfs)); 787 goto error; 788 } 789 790 if (nvlist_add_uint64(props, 791 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 792 nomem(); 793 volsize = intval; 794 break; 795 case 'p': 796 parents = B_TRUE; 797 break; 798 case 'b': 799 bflag = B_TRUE; 800 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 801 (void) fprintf(stderr, gettext("bad volume " 802 "block size '%s': %s\n"), optarg, 803 libzfs_error_description(g_zfs)); 804 goto error; 805 } 806 807 if (nvlist_add_uint64(props, 808 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 809 intval) != 0) 810 nomem(); 811 break; 812 case 'o': 813 if (parseprop(props, optarg) != 0) 814 goto error; 815 break; 816 case 's': 817 noreserve = B_TRUE; 818 break; 819 case ':': 820 (void) fprintf(stderr, gettext("missing size " 821 "argument\n")); 822 goto badusage; 823 case '?': 824 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 825 optopt); 826 goto badusage; 827 } 828 } 829 830 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 831 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 832 "used when creating a volume\n")); 833 goto badusage; 834 } 835 836 argc -= optind; 837 argv += optind; 838 839 /* check number of arguments */ 840 if (argc == 0) { 841 (void) fprintf(stderr, gettext("missing %s argument\n"), 842 zfs_type_to_name(type)); 843 goto badusage; 844 } 845 if (argc > 1) { 846 (void) fprintf(stderr, gettext("too many arguments\n")); 847 goto badusage; 848 } 849 850 if (type == ZFS_TYPE_VOLUME && !noreserve) { 851 zpool_handle_t *zpool_handle; 852 nvlist_t *real_props = NULL; 853 uint64_t spa_version; 854 char *p; 855 zfs_prop_t resv_prop; 856 char *strval; 857 char msg[1024]; 858 859 if ((p = strchr(argv[0], '/')) != NULL) 860 *p = '\0'; 861 zpool_handle = zpool_open(g_zfs, argv[0]); 862 if (p != NULL) 863 *p = '/'; 864 if (zpool_handle == NULL) 865 goto error; 866 spa_version = zpool_get_prop_int(zpool_handle, 867 ZPOOL_PROP_VERSION, NULL); 868 if (spa_version >= SPA_VERSION_REFRESERVATION) 869 resv_prop = ZFS_PROP_REFRESERVATION; 870 else 871 resv_prop = ZFS_PROP_RESERVATION; 872 873 (void) snprintf(msg, sizeof (msg), 874 gettext("cannot create '%s'"), argv[0]); 875 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 876 props, 0, NULL, zpool_handle, msg)) == NULL) { 877 zpool_close(zpool_handle); 878 goto error; 879 } 880 zpool_close(zpool_handle); 881 882 volsize = zvol_volsize_to_reservation(volsize, real_props); 883 nvlist_free(real_props); 884 885 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 886 &strval) != 0) { 887 if (nvlist_add_uint64(props, 888 zfs_prop_to_name(resv_prop), volsize) != 0) { 889 nvlist_free(props); 890 nomem(); 891 } 892 } 893 } 894 895 if (parents && zfs_name_valid(argv[0], type)) { 896 /* 897 * Now create the ancestors of target dataset. If the target 898 * already exists and '-p' option was used we should not 899 * complain. 900 */ 901 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 902 ret = 0; 903 goto error; 904 } 905 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 906 goto error; 907 } 908 909 /* pass to libzfs */ 910 if (zfs_create(g_zfs, argv[0], type, props) != 0) 911 goto error; 912 913 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 914 goto error; 915 916 ret = 0; 917 918 /* 919 * Mount and/or share the new filesystem as appropriate. We provide a 920 * verbose error message to let the user know that their filesystem was 921 * in fact created, even if we failed to mount or share it. 922 * If the user doesn't want the dataset automatically mounted, 923 * then skip the mount/share step altogether. 924 */ 925 if (should_auto_mount(zhp)) { 926 if (zfs_mount(zhp, NULL, 0) != 0) { 927 (void) fprintf(stderr, gettext("filesystem " 928 "successfully created, but not mounted\n")); 929 ret = 1; 930 } else if (zfs_share(zhp) != 0) { 931 (void) fprintf(stderr, gettext("filesystem " 932 "successfully created, but not shared\n")); 933 ret = 1; 934 } 935 } 936 937 error: 938 if (zhp) 939 zfs_close(zhp); 940 nvlist_free(props); 941 return (ret); 942 badusage: 943 nvlist_free(props); 944 usage(B_FALSE); 945 return (2); 946 } 947 948 /* 949 * zfs destroy [-rRf] <fs, vol> 950 * zfs destroy [-rRd] <snap> 951 * 952 * -r Recursively destroy all children 953 * -R Recursively destroy all dependents, including clones 954 * -f Force unmounting of any dependents 955 * -d If we can't destroy now, mark for deferred destruction 956 * 957 * Destroys the given dataset. By default, it will unmount any filesystems, 958 * and refuse to destroy a dataset that has any dependents. A dependent can 959 * either be a child, or a clone of a child. 960 */ 961 typedef struct destroy_cbdata { 962 boolean_t cb_first; 963 boolean_t cb_force; 964 boolean_t cb_recurse; 965 boolean_t cb_error; 966 boolean_t cb_doclones; 967 zfs_handle_t *cb_target; 968 boolean_t cb_defer_destroy; 969 boolean_t cb_verbose; 970 boolean_t cb_parsable; 971 boolean_t cb_dryrun; 972 nvlist_t *cb_nvl; 973 nvlist_t *cb_batchedsnaps; 974 975 /* first snap in contiguous run */ 976 char *cb_firstsnap; 977 /* previous snap in contiguous run */ 978 char *cb_prevsnap; 979 int64_t cb_snapused; 980 char *cb_snapspec; 981 char *cb_bookmark; 982 } destroy_cbdata_t; 983 984 /* 985 * Check for any dependents based on the '-r' or '-R' flags. 986 */ 987 static int 988 destroy_check_dependent(zfs_handle_t *zhp, void *data) 989 { 990 destroy_cbdata_t *cbp = data; 991 const char *tname = zfs_get_name(cbp->cb_target); 992 const char *name = zfs_get_name(zhp); 993 994 if (strncmp(tname, name, strlen(tname)) == 0 && 995 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 996 /* 997 * This is a direct descendant, not a clone somewhere else in 998 * the hierarchy. 999 */ 1000 if (cbp->cb_recurse) 1001 goto out; 1002 1003 if (cbp->cb_first) { 1004 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1005 "%s has children\n"), 1006 zfs_get_name(cbp->cb_target), 1007 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1008 (void) fprintf(stderr, gettext("use '-r' to destroy " 1009 "the following datasets:\n")); 1010 cbp->cb_first = B_FALSE; 1011 cbp->cb_error = B_TRUE; 1012 } 1013 1014 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1015 } else { 1016 /* 1017 * This is a clone. We only want to report this if the '-r' 1018 * wasn't specified, or the target is a snapshot. 1019 */ 1020 if (!cbp->cb_recurse && 1021 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1022 goto out; 1023 1024 if (cbp->cb_first) { 1025 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1026 "%s has dependent clones\n"), 1027 zfs_get_name(cbp->cb_target), 1028 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1029 (void) fprintf(stderr, gettext("use '-R' to destroy " 1030 "the following datasets:\n")); 1031 cbp->cb_first = B_FALSE; 1032 cbp->cb_error = B_TRUE; 1033 cbp->cb_dryrun = B_TRUE; 1034 } 1035 1036 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1037 } 1038 1039 out: 1040 zfs_close(zhp); 1041 return (0); 1042 } 1043 1044 static int 1045 destroy_callback(zfs_handle_t *zhp, void *data) 1046 { 1047 destroy_cbdata_t *cb = data; 1048 const char *name = zfs_get_name(zhp); 1049 1050 if (cb->cb_verbose) { 1051 if (cb->cb_parsable) { 1052 (void) printf("destroy\t%s\n", name); 1053 } else if (cb->cb_dryrun) { 1054 (void) printf(gettext("would destroy %s\n"), 1055 name); 1056 } else { 1057 (void) printf(gettext("will destroy %s\n"), 1058 name); 1059 } 1060 } 1061 1062 /* 1063 * Ignore pools (which we've already flagged as an error before getting 1064 * here). 1065 */ 1066 if (strchr(zfs_get_name(zhp), '/') == NULL && 1067 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1068 zfs_close(zhp); 1069 return (0); 1070 } 1071 if (cb->cb_dryrun) { 1072 zfs_close(zhp); 1073 return (0); 1074 } 1075 1076 /* 1077 * We batch up all contiguous snapshots (even of different 1078 * filesystems) and destroy them with one ioctl. We can't 1079 * simply do all snap deletions and then all fs deletions, 1080 * because we must delete a clone before its origin. 1081 */ 1082 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1083 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1084 } else { 1085 int error = zfs_destroy_snaps_nvl(g_zfs, 1086 cb->cb_batchedsnaps, B_FALSE); 1087 fnvlist_free(cb->cb_batchedsnaps); 1088 cb->cb_batchedsnaps = fnvlist_alloc(); 1089 1090 if (error != 0 || 1091 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1092 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1093 zfs_close(zhp); 1094 return (-1); 1095 } 1096 } 1097 1098 zfs_close(zhp); 1099 return (0); 1100 } 1101 1102 static int 1103 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1104 { 1105 destroy_cbdata_t *cb = arg; 1106 const char *name = zfs_get_name(zhp); 1107 int err = 0; 1108 1109 if (nvlist_exists(cb->cb_nvl, name)) { 1110 if (cb->cb_firstsnap == NULL) 1111 cb->cb_firstsnap = strdup(name); 1112 if (cb->cb_prevsnap != NULL) 1113 free(cb->cb_prevsnap); 1114 /* this snap continues the current range */ 1115 cb->cb_prevsnap = strdup(name); 1116 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1117 nomem(); 1118 if (cb->cb_verbose) { 1119 if (cb->cb_parsable) { 1120 (void) printf("destroy\t%s\n", name); 1121 } else if (cb->cb_dryrun) { 1122 (void) printf(gettext("would destroy %s\n"), 1123 name); 1124 } else { 1125 (void) printf(gettext("will destroy %s\n"), 1126 name); 1127 } 1128 } 1129 } else if (cb->cb_firstsnap != NULL) { 1130 /* end of this range */ 1131 uint64_t used = 0; 1132 err = lzc_snaprange_space(cb->cb_firstsnap, 1133 cb->cb_prevsnap, &used); 1134 cb->cb_snapused += used; 1135 free(cb->cb_firstsnap); 1136 cb->cb_firstsnap = NULL; 1137 free(cb->cb_prevsnap); 1138 cb->cb_prevsnap = NULL; 1139 } 1140 zfs_close(zhp); 1141 return (err); 1142 } 1143 1144 static int 1145 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1146 { 1147 int err = 0; 1148 assert(cb->cb_firstsnap == NULL); 1149 assert(cb->cb_prevsnap == NULL); 1150 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1151 if (cb->cb_firstsnap != NULL) { 1152 uint64_t used = 0; 1153 if (err == 0) { 1154 err = lzc_snaprange_space(cb->cb_firstsnap, 1155 cb->cb_prevsnap, &used); 1156 } 1157 cb->cb_snapused += used; 1158 free(cb->cb_firstsnap); 1159 cb->cb_firstsnap = NULL; 1160 free(cb->cb_prevsnap); 1161 cb->cb_prevsnap = NULL; 1162 } 1163 return (err); 1164 } 1165 1166 static int 1167 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1168 { 1169 destroy_cbdata_t *cb = arg; 1170 int err = 0; 1171 1172 /* Check for clones. */ 1173 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1174 cb->cb_target = zhp; 1175 cb->cb_first = B_TRUE; 1176 err = zfs_iter_dependents(zhp, B_TRUE, 1177 destroy_check_dependent, cb); 1178 } 1179 1180 if (err == 0) { 1181 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1182 nomem(); 1183 } 1184 zfs_close(zhp); 1185 return (err); 1186 } 1187 1188 static int 1189 gather_snapshots(zfs_handle_t *zhp, void *arg) 1190 { 1191 destroy_cbdata_t *cb = arg; 1192 int err = 0; 1193 1194 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1195 if (err == ENOENT) 1196 err = 0; 1197 if (err != 0) 1198 goto out; 1199 1200 if (cb->cb_verbose) { 1201 err = destroy_print_snapshots(zhp, cb); 1202 if (err != 0) 1203 goto out; 1204 } 1205 1206 if (cb->cb_recurse) 1207 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1208 1209 out: 1210 zfs_close(zhp); 1211 return (err); 1212 } 1213 1214 static int 1215 destroy_clones(destroy_cbdata_t *cb) 1216 { 1217 nvpair_t *pair; 1218 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1219 pair != NULL; 1220 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1221 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1222 ZFS_TYPE_SNAPSHOT); 1223 if (zhp != NULL) { 1224 boolean_t defer = cb->cb_defer_destroy; 1225 int err = 0; 1226 1227 /* 1228 * We can't defer destroy non-snapshots, so set it to 1229 * false while destroying the clones. 1230 */ 1231 cb->cb_defer_destroy = B_FALSE; 1232 err = zfs_iter_dependents(zhp, B_FALSE, 1233 destroy_callback, cb); 1234 cb->cb_defer_destroy = defer; 1235 zfs_close(zhp); 1236 if (err != 0) 1237 return (err); 1238 } 1239 } 1240 return (0); 1241 } 1242 1243 static int 1244 zfs_do_destroy(int argc, char **argv) 1245 { 1246 destroy_cbdata_t cb = { 0 }; 1247 int rv = 0; 1248 int err = 0; 1249 int c; 1250 zfs_handle_t *zhp = NULL; 1251 char *at, *pound; 1252 zfs_type_t type = ZFS_TYPE_DATASET; 1253 1254 /* check options */ 1255 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1256 switch (c) { 1257 case 'v': 1258 cb.cb_verbose = B_TRUE; 1259 break; 1260 case 'p': 1261 cb.cb_verbose = B_TRUE; 1262 cb.cb_parsable = B_TRUE; 1263 break; 1264 case 'n': 1265 cb.cb_dryrun = B_TRUE; 1266 break; 1267 case 'd': 1268 cb.cb_defer_destroy = B_TRUE; 1269 type = ZFS_TYPE_SNAPSHOT; 1270 break; 1271 case 'f': 1272 cb.cb_force = B_TRUE; 1273 break; 1274 case 'r': 1275 cb.cb_recurse = B_TRUE; 1276 break; 1277 case 'R': 1278 cb.cb_recurse = B_TRUE; 1279 cb.cb_doclones = B_TRUE; 1280 break; 1281 case '?': 1282 default: 1283 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1284 optopt); 1285 usage(B_FALSE); 1286 } 1287 } 1288 1289 argc -= optind; 1290 argv += optind; 1291 1292 /* check number of arguments */ 1293 if (argc == 0) { 1294 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1295 usage(B_FALSE); 1296 } 1297 if (argc > 1) { 1298 (void) fprintf(stderr, gettext("too many arguments\n")); 1299 usage(B_FALSE); 1300 } 1301 1302 at = strchr(argv[0], '@'); 1303 pound = strchr(argv[0], '#'); 1304 if (at != NULL) { 1305 1306 /* Build the list of snaps to destroy in cb_nvl. */ 1307 cb.cb_nvl = fnvlist_alloc(); 1308 1309 *at = '\0'; 1310 zhp = zfs_open(g_zfs, argv[0], 1311 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1312 if (zhp == NULL) 1313 return (1); 1314 1315 cb.cb_snapspec = at + 1; 1316 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1317 cb.cb_error) { 1318 rv = 1; 1319 goto out; 1320 } 1321 1322 if (nvlist_empty(cb.cb_nvl)) { 1323 (void) fprintf(stderr, gettext("could not find any " 1324 "snapshots to destroy; check snapshot names.\n")); 1325 rv = 1; 1326 goto out; 1327 } 1328 1329 if (cb.cb_verbose) { 1330 char buf[16]; 1331 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1332 if (cb.cb_parsable) { 1333 (void) printf("reclaim\t%llu\n", 1334 cb.cb_snapused); 1335 } else if (cb.cb_dryrun) { 1336 (void) printf(gettext("would reclaim %s\n"), 1337 buf); 1338 } else { 1339 (void) printf(gettext("will reclaim %s\n"), 1340 buf); 1341 } 1342 } 1343 1344 if (!cb.cb_dryrun) { 1345 if (cb.cb_doclones) { 1346 cb.cb_batchedsnaps = fnvlist_alloc(); 1347 err = destroy_clones(&cb); 1348 if (err == 0) { 1349 err = zfs_destroy_snaps_nvl(g_zfs, 1350 cb.cb_batchedsnaps, B_FALSE); 1351 } 1352 if (err != 0) { 1353 rv = 1; 1354 goto out; 1355 } 1356 } 1357 if (err == 0) { 1358 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1359 cb.cb_defer_destroy); 1360 } 1361 } 1362 1363 if (err != 0) 1364 rv = 1; 1365 } else if (pound != NULL) { 1366 int err; 1367 nvlist_t *nvl; 1368 1369 if (cb.cb_dryrun) { 1370 (void) fprintf(stderr, 1371 "dryrun is not supported with bookmark\n"); 1372 return (-1); 1373 } 1374 1375 if (cb.cb_defer_destroy) { 1376 (void) fprintf(stderr, 1377 "defer destroy is not supported with bookmark\n"); 1378 return (-1); 1379 } 1380 1381 if (cb.cb_recurse) { 1382 (void) fprintf(stderr, 1383 "recursive is not supported with bookmark\n"); 1384 return (-1); 1385 } 1386 1387 if (!zfs_bookmark_exists(argv[0])) { 1388 (void) fprintf(stderr, gettext("bookmark '%s' " 1389 "does not exist.\n"), argv[0]); 1390 return (1); 1391 } 1392 1393 nvl = fnvlist_alloc(); 1394 fnvlist_add_boolean(nvl, argv[0]); 1395 1396 err = lzc_destroy_bookmarks(nvl, NULL); 1397 if (err != 0) { 1398 (void) zfs_standard_error(g_zfs, err, 1399 "cannot destroy bookmark"); 1400 } 1401 1402 nvlist_free(cb.cb_nvl); 1403 1404 return (err); 1405 } else { 1406 /* Open the given dataset */ 1407 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1408 return (1); 1409 1410 cb.cb_target = zhp; 1411 1412 /* 1413 * Perform an explicit check for pools before going any further. 1414 */ 1415 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1416 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1417 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1418 "operation does not apply to pools\n"), 1419 zfs_get_name(zhp)); 1420 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1421 "%s' to destroy all datasets in the pool\n"), 1422 zfs_get_name(zhp)); 1423 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1424 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1425 rv = 1; 1426 goto out; 1427 } 1428 1429 /* 1430 * Check for any dependents and/or clones. 1431 */ 1432 cb.cb_first = B_TRUE; 1433 if (!cb.cb_doclones && 1434 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1435 &cb) != 0) { 1436 rv = 1; 1437 goto out; 1438 } 1439 1440 if (cb.cb_error) { 1441 rv = 1; 1442 goto out; 1443 } 1444 1445 cb.cb_batchedsnaps = fnvlist_alloc(); 1446 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1447 &cb) != 0) { 1448 rv = 1; 1449 goto out; 1450 } 1451 1452 /* 1453 * Do the real thing. The callback will close the 1454 * handle regardless of whether it succeeds or not. 1455 */ 1456 err = destroy_callback(zhp, &cb); 1457 zhp = NULL; 1458 if (err == 0) { 1459 err = zfs_destroy_snaps_nvl(g_zfs, 1460 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1461 } 1462 if (err != 0) 1463 rv = 1; 1464 } 1465 1466 out: 1467 fnvlist_free(cb.cb_batchedsnaps); 1468 fnvlist_free(cb.cb_nvl); 1469 if (zhp != NULL) 1470 zfs_close(zhp); 1471 return (rv); 1472 } 1473 1474 static boolean_t 1475 is_recvd_column(zprop_get_cbdata_t *cbp) 1476 { 1477 int i; 1478 zfs_get_column_t col; 1479 1480 for (i = 0; i < ZFS_GET_NCOLS && 1481 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1482 if (col == GET_COL_RECVD) 1483 return (B_TRUE); 1484 return (B_FALSE); 1485 } 1486 1487 /* 1488 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1489 * < all | property[,property]... > < fs | snap | vol > ... 1490 * 1491 * -r recurse over any child datasets 1492 * -H scripted mode. Headers are stripped, and fields are separated 1493 * by tabs instead of spaces. 1494 * -o Set of fields to display. One of "name,property,value, 1495 * received,source". Default is "name,property,value,source". 1496 * "all" is an alias for all five. 1497 * -s Set of sources to allow. One of 1498 * "local,default,inherited,received,temporary,none". Default is 1499 * all six. 1500 * -p Display values in parsable (literal) format. 1501 * 1502 * Prints properties for the given datasets. The user can control which 1503 * columns to display as well as which property types to allow. 1504 */ 1505 1506 /* 1507 * Invoked to display the properties for a single dataset. 1508 */ 1509 static int 1510 get_callback(zfs_handle_t *zhp, void *data) 1511 { 1512 char buf[ZFS_MAXPROPLEN]; 1513 char rbuf[ZFS_MAXPROPLEN]; 1514 zprop_source_t sourcetype; 1515 char source[ZFS_MAXNAMELEN]; 1516 zprop_get_cbdata_t *cbp = data; 1517 nvlist_t *user_props = zfs_get_user_props(zhp); 1518 zprop_list_t *pl = cbp->cb_proplist; 1519 nvlist_t *propval; 1520 char *strval; 1521 char *sourceval; 1522 boolean_t received = is_recvd_column(cbp); 1523 1524 for (; pl != NULL; pl = pl->pl_next) { 1525 char *recvdval = NULL; 1526 /* 1527 * Skip the special fake placeholder. This will also skip over 1528 * the name property when 'all' is specified. 1529 */ 1530 if (pl->pl_prop == ZFS_PROP_NAME && 1531 pl == cbp->cb_proplist) 1532 continue; 1533 1534 if (pl->pl_prop != ZPROP_INVAL) { 1535 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1536 sizeof (buf), &sourcetype, source, 1537 sizeof (source), 1538 cbp->cb_literal) != 0) { 1539 if (pl->pl_all) 1540 continue; 1541 if (!zfs_prop_valid_for_type(pl->pl_prop, 1542 ZFS_TYPE_DATASET)) { 1543 (void) fprintf(stderr, 1544 gettext("No such property '%s'\n"), 1545 zfs_prop_to_name(pl->pl_prop)); 1546 continue; 1547 } 1548 sourcetype = ZPROP_SRC_NONE; 1549 (void) strlcpy(buf, "-", sizeof (buf)); 1550 } 1551 1552 if (received && (zfs_prop_get_recvd(zhp, 1553 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1554 cbp->cb_literal) == 0)) 1555 recvdval = rbuf; 1556 1557 zprop_print_one_property(zfs_get_name(zhp), cbp, 1558 zfs_prop_to_name(pl->pl_prop), 1559 buf, sourcetype, source, recvdval); 1560 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1561 sourcetype = ZPROP_SRC_LOCAL; 1562 1563 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1564 buf, sizeof (buf), cbp->cb_literal) != 0) { 1565 sourcetype = ZPROP_SRC_NONE; 1566 (void) strlcpy(buf, "-", sizeof (buf)); 1567 } 1568 1569 zprop_print_one_property(zfs_get_name(zhp), cbp, 1570 pl->pl_user_prop, buf, sourcetype, source, NULL); 1571 } else if (zfs_prop_written(pl->pl_user_prop)) { 1572 sourcetype = ZPROP_SRC_LOCAL; 1573 1574 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1575 buf, sizeof (buf), cbp->cb_literal) != 0) { 1576 sourcetype = ZPROP_SRC_NONE; 1577 (void) strlcpy(buf, "-", sizeof (buf)); 1578 } 1579 1580 zprop_print_one_property(zfs_get_name(zhp), cbp, 1581 pl->pl_user_prop, buf, sourcetype, source, NULL); 1582 } else { 1583 if (nvlist_lookup_nvlist(user_props, 1584 pl->pl_user_prop, &propval) != 0) { 1585 if (pl->pl_all) 1586 continue; 1587 sourcetype = ZPROP_SRC_NONE; 1588 strval = "-"; 1589 } else { 1590 verify(nvlist_lookup_string(propval, 1591 ZPROP_VALUE, &strval) == 0); 1592 verify(nvlist_lookup_string(propval, 1593 ZPROP_SOURCE, &sourceval) == 0); 1594 1595 if (strcmp(sourceval, 1596 zfs_get_name(zhp)) == 0) { 1597 sourcetype = ZPROP_SRC_LOCAL; 1598 } else if (strcmp(sourceval, 1599 ZPROP_SOURCE_VAL_RECVD) == 0) { 1600 sourcetype = ZPROP_SRC_RECEIVED; 1601 } else { 1602 sourcetype = ZPROP_SRC_INHERITED; 1603 (void) strlcpy(source, 1604 sourceval, sizeof (source)); 1605 } 1606 } 1607 1608 if (received && (zfs_prop_get_recvd(zhp, 1609 pl->pl_user_prop, rbuf, sizeof (rbuf), 1610 cbp->cb_literal) == 0)) 1611 recvdval = rbuf; 1612 1613 zprop_print_one_property(zfs_get_name(zhp), cbp, 1614 pl->pl_user_prop, strval, sourcetype, 1615 source, recvdval); 1616 } 1617 } 1618 1619 return (0); 1620 } 1621 1622 static int 1623 zfs_do_get(int argc, char **argv) 1624 { 1625 zprop_get_cbdata_t cb = { 0 }; 1626 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1627 int types = ZFS_TYPE_DATASET; 1628 char *value, *fields; 1629 int ret = 0; 1630 int limit = 0; 1631 zprop_list_t fake_name = { 0 }; 1632 1633 /* 1634 * Set up default columns and sources. 1635 */ 1636 cb.cb_sources = ZPROP_SRC_ALL; 1637 cb.cb_columns[0] = GET_COL_NAME; 1638 cb.cb_columns[1] = GET_COL_PROPERTY; 1639 cb.cb_columns[2] = GET_COL_VALUE; 1640 cb.cb_columns[3] = GET_COL_SOURCE; 1641 cb.cb_type = ZFS_TYPE_DATASET; 1642 1643 /* check options */ 1644 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1645 switch (c) { 1646 case 'p': 1647 cb.cb_literal = B_TRUE; 1648 break; 1649 case 'd': 1650 limit = parse_depth(optarg, &flags); 1651 break; 1652 case 'r': 1653 flags |= ZFS_ITER_RECURSE; 1654 break; 1655 case 'H': 1656 cb.cb_scripted = B_TRUE; 1657 break; 1658 case ':': 1659 (void) fprintf(stderr, gettext("missing argument for " 1660 "'%c' option\n"), optopt); 1661 usage(B_FALSE); 1662 break; 1663 case 'o': 1664 /* 1665 * Process the set of columns to display. We zero out 1666 * the structure to give us a blank slate. 1667 */ 1668 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1669 i = 0; 1670 while (*optarg != '\0') { 1671 static char *col_subopts[] = 1672 { "name", "property", "value", "received", 1673 "source", "all", NULL }; 1674 1675 if (i == ZFS_GET_NCOLS) { 1676 (void) fprintf(stderr, gettext("too " 1677 "many fields given to -o " 1678 "option\n")); 1679 usage(B_FALSE); 1680 } 1681 1682 switch (getsubopt(&optarg, col_subopts, 1683 &value)) { 1684 case 0: 1685 cb.cb_columns[i++] = GET_COL_NAME; 1686 break; 1687 case 1: 1688 cb.cb_columns[i++] = GET_COL_PROPERTY; 1689 break; 1690 case 2: 1691 cb.cb_columns[i++] = GET_COL_VALUE; 1692 break; 1693 case 3: 1694 cb.cb_columns[i++] = GET_COL_RECVD; 1695 flags |= ZFS_ITER_RECVD_PROPS; 1696 break; 1697 case 4: 1698 cb.cb_columns[i++] = GET_COL_SOURCE; 1699 break; 1700 case 5: 1701 if (i > 0) { 1702 (void) fprintf(stderr, 1703 gettext("\"all\" conflicts " 1704 "with specific fields " 1705 "given to -o option\n")); 1706 usage(B_FALSE); 1707 } 1708 cb.cb_columns[0] = GET_COL_NAME; 1709 cb.cb_columns[1] = GET_COL_PROPERTY; 1710 cb.cb_columns[2] = GET_COL_VALUE; 1711 cb.cb_columns[3] = GET_COL_RECVD; 1712 cb.cb_columns[4] = GET_COL_SOURCE; 1713 flags |= ZFS_ITER_RECVD_PROPS; 1714 i = ZFS_GET_NCOLS; 1715 break; 1716 default: 1717 (void) fprintf(stderr, 1718 gettext("invalid column name " 1719 "'%s'\n"), value); 1720 usage(B_FALSE); 1721 } 1722 } 1723 break; 1724 1725 case 's': 1726 cb.cb_sources = 0; 1727 while (*optarg != '\0') { 1728 static char *source_subopts[] = { 1729 "local", "default", "inherited", 1730 "received", "temporary", "none", 1731 NULL }; 1732 1733 switch (getsubopt(&optarg, source_subopts, 1734 &value)) { 1735 case 0: 1736 cb.cb_sources |= ZPROP_SRC_LOCAL; 1737 break; 1738 case 1: 1739 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1740 break; 1741 case 2: 1742 cb.cb_sources |= ZPROP_SRC_INHERITED; 1743 break; 1744 case 3: 1745 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1746 break; 1747 case 4: 1748 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1749 break; 1750 case 5: 1751 cb.cb_sources |= ZPROP_SRC_NONE; 1752 break; 1753 default: 1754 (void) fprintf(stderr, 1755 gettext("invalid source " 1756 "'%s'\n"), value); 1757 usage(B_FALSE); 1758 } 1759 } 1760 break; 1761 1762 case 't': 1763 types = 0; 1764 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1765 while (*optarg != '\0') { 1766 static char *type_subopts[] = { "filesystem", 1767 "volume", "snapshot", "bookmark", 1768 "all", NULL }; 1769 1770 switch (getsubopt(&optarg, type_subopts, 1771 &value)) { 1772 case 0: 1773 types |= ZFS_TYPE_FILESYSTEM; 1774 break; 1775 case 1: 1776 types |= ZFS_TYPE_VOLUME; 1777 break; 1778 case 2: 1779 types |= ZFS_TYPE_SNAPSHOT; 1780 break; 1781 case 3: 1782 types |= ZFS_TYPE_BOOKMARK; 1783 break; 1784 case 4: 1785 types = ZFS_TYPE_DATASET | 1786 ZFS_TYPE_BOOKMARK; 1787 break; 1788 1789 default: 1790 (void) fprintf(stderr, 1791 gettext("invalid type '%s'\n"), 1792 value); 1793 usage(B_FALSE); 1794 } 1795 } 1796 break; 1797 1798 case '?': 1799 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1800 optopt); 1801 usage(B_FALSE); 1802 } 1803 } 1804 1805 argc -= optind; 1806 argv += optind; 1807 1808 if (argc < 1) { 1809 (void) fprintf(stderr, gettext("missing property " 1810 "argument\n")); 1811 usage(B_FALSE); 1812 } 1813 1814 fields = argv[0]; 1815 1816 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1817 != 0) 1818 usage(B_FALSE); 1819 1820 argc--; 1821 argv++; 1822 1823 /* 1824 * As part of zfs_expand_proplist(), we keep track of the maximum column 1825 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1826 * need to know the maximum name length. However, the user likely did 1827 * not specify 'name' as one of the properties to fetch, so we need to 1828 * make sure we always include at least this property for 1829 * print_get_headers() to work properly. 1830 */ 1831 if (cb.cb_proplist != NULL) { 1832 fake_name.pl_prop = ZFS_PROP_NAME; 1833 fake_name.pl_width = strlen(gettext("NAME")); 1834 fake_name.pl_next = cb.cb_proplist; 1835 cb.cb_proplist = &fake_name; 1836 } 1837 1838 cb.cb_first = B_TRUE; 1839 1840 /* run for each object */ 1841 ret = zfs_for_each(argc, argv, flags, types, NULL, 1842 &cb.cb_proplist, limit, get_callback, &cb); 1843 1844 if (cb.cb_proplist == &fake_name) 1845 zprop_free_list(fake_name.pl_next); 1846 else 1847 zprop_free_list(cb.cb_proplist); 1848 1849 return (ret); 1850 } 1851 1852 /* 1853 * inherit [-rS] <property> <fs|vol> ... 1854 * 1855 * -r Recurse over all children 1856 * -S Revert to received value, if any 1857 * 1858 * For each dataset specified on the command line, inherit the given property 1859 * from its parent. Inheriting a property at the pool level will cause it to 1860 * use the default value. The '-r' flag will recurse over all children, and is 1861 * useful for setting a property on a hierarchy-wide basis, regardless of any 1862 * local modifications for each dataset. 1863 */ 1864 1865 typedef struct inherit_cbdata { 1866 const char *cb_propname; 1867 boolean_t cb_received; 1868 } inherit_cbdata_t; 1869 1870 static int 1871 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1872 { 1873 inherit_cbdata_t *cb = data; 1874 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1875 1876 /* 1877 * If we're doing it recursively, then ignore properties that 1878 * are not valid for this type of dataset. 1879 */ 1880 if (prop != ZPROP_INVAL && 1881 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1882 return (0); 1883 1884 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1885 } 1886 1887 static int 1888 inherit_cb(zfs_handle_t *zhp, void *data) 1889 { 1890 inherit_cbdata_t *cb = data; 1891 1892 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1893 } 1894 1895 static int 1896 zfs_do_inherit(int argc, char **argv) 1897 { 1898 int c; 1899 zfs_prop_t prop; 1900 inherit_cbdata_t cb = { 0 }; 1901 char *propname; 1902 int ret = 0; 1903 int flags = 0; 1904 boolean_t received = B_FALSE; 1905 1906 /* check options */ 1907 while ((c = getopt(argc, argv, "rS")) != -1) { 1908 switch (c) { 1909 case 'r': 1910 flags |= ZFS_ITER_RECURSE; 1911 break; 1912 case 'S': 1913 received = B_TRUE; 1914 break; 1915 case '?': 1916 default: 1917 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1918 optopt); 1919 usage(B_FALSE); 1920 } 1921 } 1922 1923 argc -= optind; 1924 argv += optind; 1925 1926 /* check number of arguments */ 1927 if (argc < 1) { 1928 (void) fprintf(stderr, gettext("missing property argument\n")); 1929 usage(B_FALSE); 1930 } 1931 if (argc < 2) { 1932 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1933 usage(B_FALSE); 1934 } 1935 1936 propname = argv[0]; 1937 argc--; 1938 argv++; 1939 1940 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1941 if (zfs_prop_readonly(prop)) { 1942 (void) fprintf(stderr, gettext( 1943 "%s property is read-only\n"), 1944 propname); 1945 return (1); 1946 } 1947 if (!zfs_prop_inheritable(prop) && !received) { 1948 (void) fprintf(stderr, gettext("'%s' property cannot " 1949 "be inherited\n"), propname); 1950 if (prop == ZFS_PROP_QUOTA || 1951 prop == ZFS_PROP_RESERVATION || 1952 prop == ZFS_PROP_REFQUOTA || 1953 prop == ZFS_PROP_REFRESERVATION) { 1954 (void) fprintf(stderr, gettext("use 'zfs set " 1955 "%s=none' to clear\n"), propname); 1956 (void) fprintf(stderr, gettext("use 'zfs " 1957 "inherit -S %s' to revert to received " 1958 "value\n"), propname); 1959 } 1960 return (1); 1961 } 1962 if (received && (prop == ZFS_PROP_VOLSIZE || 1963 prop == ZFS_PROP_VERSION)) { 1964 (void) fprintf(stderr, gettext("'%s' property cannot " 1965 "be reverted to a received value\n"), propname); 1966 return (1); 1967 } 1968 } else if (!zfs_prop_user(propname)) { 1969 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1970 propname); 1971 usage(B_FALSE); 1972 } 1973 1974 cb.cb_propname = propname; 1975 cb.cb_received = received; 1976 1977 if (flags & ZFS_ITER_RECURSE) { 1978 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1979 NULL, NULL, 0, inherit_recurse_cb, &cb); 1980 } else { 1981 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1982 NULL, NULL, 0, inherit_cb, &cb); 1983 } 1984 1985 return (ret); 1986 } 1987 1988 typedef struct upgrade_cbdata { 1989 uint64_t cb_numupgraded; 1990 uint64_t cb_numsamegraded; 1991 uint64_t cb_numfailed; 1992 uint64_t cb_version; 1993 boolean_t cb_newer; 1994 boolean_t cb_foundone; 1995 char cb_lastfs[ZFS_MAXNAMELEN]; 1996 } upgrade_cbdata_t; 1997 1998 static int 1999 same_pool(zfs_handle_t *zhp, const char *name) 2000 { 2001 int len1 = strcspn(name, "/@"); 2002 const char *zhname = zfs_get_name(zhp); 2003 int len2 = strcspn(zhname, "/@"); 2004 2005 if (len1 != len2) 2006 return (B_FALSE); 2007 return (strncmp(name, zhname, len1) == 0); 2008 } 2009 2010 static int 2011 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2012 { 2013 upgrade_cbdata_t *cb = data; 2014 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2015 2016 /* list if it's old/new */ 2017 if ((!cb->cb_newer && version < ZPL_VERSION) || 2018 (cb->cb_newer && version > ZPL_VERSION)) { 2019 char *str; 2020 if (cb->cb_newer) { 2021 str = gettext("The following filesystems are " 2022 "formatted using a newer software version and\n" 2023 "cannot be accessed on the current system.\n\n"); 2024 } else { 2025 str = gettext("The following filesystems are " 2026 "out of date, and can be upgraded. After being\n" 2027 "upgraded, these filesystems (and any 'zfs send' " 2028 "streams generated from\n" 2029 "subsequent snapshots) will no longer be " 2030 "accessible by older software versions.\n\n"); 2031 } 2032 2033 if (!cb->cb_foundone) { 2034 (void) puts(str); 2035 (void) printf(gettext("VER FILESYSTEM\n")); 2036 (void) printf(gettext("--- ------------\n")); 2037 cb->cb_foundone = B_TRUE; 2038 } 2039 2040 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2041 } 2042 2043 return (0); 2044 } 2045 2046 static int 2047 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2048 { 2049 upgrade_cbdata_t *cb = data; 2050 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2051 int needed_spa_version; 2052 int spa_version; 2053 2054 if (zfs_spa_version(zhp, &spa_version) < 0) 2055 return (-1); 2056 2057 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2058 2059 if (needed_spa_version < 0) 2060 return (-1); 2061 2062 if (spa_version < needed_spa_version) { 2063 /* can't upgrade */ 2064 (void) printf(gettext("%s: can not be " 2065 "upgraded; the pool version needs to first " 2066 "be upgraded\nto version %d\n\n"), 2067 zfs_get_name(zhp), needed_spa_version); 2068 cb->cb_numfailed++; 2069 return (0); 2070 } 2071 2072 /* upgrade */ 2073 if (version < cb->cb_version) { 2074 char verstr[16]; 2075 (void) snprintf(verstr, sizeof (verstr), 2076 "%llu", cb->cb_version); 2077 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2078 /* 2079 * If they did "zfs upgrade -a", then we could 2080 * be doing ioctls to different pools. We need 2081 * to log this history once to each pool, and bypass 2082 * the normal history logging that happens in main(). 2083 */ 2084 (void) zpool_log_history(g_zfs, history_str); 2085 log_history = B_FALSE; 2086 } 2087 if (zfs_prop_set(zhp, "version", verstr) == 0) 2088 cb->cb_numupgraded++; 2089 else 2090 cb->cb_numfailed++; 2091 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2092 } else if (version > cb->cb_version) { 2093 /* can't downgrade */ 2094 (void) printf(gettext("%s: can not be downgraded; " 2095 "it is already at version %u\n"), 2096 zfs_get_name(zhp), version); 2097 cb->cb_numfailed++; 2098 } else { 2099 cb->cb_numsamegraded++; 2100 } 2101 return (0); 2102 } 2103 2104 /* 2105 * zfs upgrade 2106 * zfs upgrade -v 2107 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2108 */ 2109 static int 2110 zfs_do_upgrade(int argc, char **argv) 2111 { 2112 boolean_t all = B_FALSE; 2113 boolean_t showversions = B_FALSE; 2114 int ret = 0; 2115 upgrade_cbdata_t cb = { 0 }; 2116 char c; 2117 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2118 2119 /* check options */ 2120 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2121 switch (c) { 2122 case 'r': 2123 flags |= ZFS_ITER_RECURSE; 2124 break; 2125 case 'v': 2126 showversions = B_TRUE; 2127 break; 2128 case 'V': 2129 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2130 optarg, &cb.cb_version) != 0) { 2131 (void) fprintf(stderr, 2132 gettext("invalid version %s\n"), optarg); 2133 usage(B_FALSE); 2134 } 2135 break; 2136 case 'a': 2137 all = B_TRUE; 2138 break; 2139 case '?': 2140 default: 2141 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2142 optopt); 2143 usage(B_FALSE); 2144 } 2145 } 2146 2147 argc -= optind; 2148 argv += optind; 2149 2150 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2151 usage(B_FALSE); 2152 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2153 cb.cb_version || argc)) 2154 usage(B_FALSE); 2155 if ((all || argc) && (showversions)) 2156 usage(B_FALSE); 2157 if (all && argc) 2158 usage(B_FALSE); 2159 2160 if (showversions) { 2161 /* Show info on available versions. */ 2162 (void) printf(gettext("The following filesystem versions are " 2163 "supported:\n\n")); 2164 (void) printf(gettext("VER DESCRIPTION\n")); 2165 (void) printf("--- -----------------------------------------" 2166 "---------------\n"); 2167 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2168 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2169 (void) printf(gettext(" 3 Case insensitive and filesystem " 2170 "user identifier (FUID)\n")); 2171 (void) printf(gettext(" 4 userquota, groupquota " 2172 "properties\n")); 2173 (void) printf(gettext(" 5 System attributes\n")); 2174 (void) printf(gettext("\nFor more information on a particular " 2175 "version, including supported releases,\n")); 2176 (void) printf("see the ZFS Administration Guide.\n\n"); 2177 ret = 0; 2178 } else if (argc || all) { 2179 /* Upgrade filesystems */ 2180 if (cb.cb_version == 0) 2181 cb.cb_version = ZPL_VERSION; 2182 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2183 NULL, NULL, 0, upgrade_set_callback, &cb); 2184 (void) printf(gettext("%llu filesystems upgraded\n"), 2185 cb.cb_numupgraded); 2186 if (cb.cb_numsamegraded) { 2187 (void) printf(gettext("%llu filesystems already at " 2188 "this version\n"), 2189 cb.cb_numsamegraded); 2190 } 2191 if (cb.cb_numfailed != 0) 2192 ret = 1; 2193 } else { 2194 /* List old-version filesytems */ 2195 boolean_t found; 2196 (void) printf(gettext("This system is currently running " 2197 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2198 2199 flags |= ZFS_ITER_RECURSE; 2200 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2201 NULL, NULL, 0, upgrade_list_callback, &cb); 2202 2203 found = cb.cb_foundone; 2204 cb.cb_foundone = B_FALSE; 2205 cb.cb_newer = B_TRUE; 2206 2207 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2208 NULL, NULL, 0, upgrade_list_callback, &cb); 2209 2210 if (!cb.cb_foundone && !found) { 2211 (void) printf(gettext("All filesystems are " 2212 "formatted with the current version.\n")); 2213 } 2214 } 2215 2216 return (ret); 2217 } 2218 2219 /* 2220 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2221 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2222 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2223 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2224 * 2225 * -H Scripted mode; elide headers and separate columns by tabs. 2226 * -i Translate SID to POSIX ID. 2227 * -n Print numeric ID instead of user/group name. 2228 * -o Control which fields to display. 2229 * -p Use exact (parsable) numeric output. 2230 * -s Specify sort columns, descending order. 2231 * -S Specify sort columns, ascending order. 2232 * -t Control which object types to display. 2233 * 2234 * Displays space consumed by, and quotas on, each user in the specified 2235 * filesystem or snapshot. 2236 */ 2237 2238 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2239 enum us_field_types { 2240 USFIELD_TYPE, 2241 USFIELD_NAME, 2242 USFIELD_USED, 2243 USFIELD_QUOTA 2244 }; 2245 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2246 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2247 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2248 2249 #define USTYPE_PSX_GRP (1 << 0) 2250 #define USTYPE_PSX_USR (1 << 1) 2251 #define USTYPE_SMB_GRP (1 << 2) 2252 #define USTYPE_SMB_USR (1 << 3) 2253 #define USTYPE_ALL \ 2254 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2255 2256 static int us_type_bits[] = { 2257 USTYPE_PSX_GRP, 2258 USTYPE_PSX_USR, 2259 USTYPE_SMB_GRP, 2260 USTYPE_SMB_USR, 2261 USTYPE_ALL 2262 }; 2263 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2264 "smbuser", "all" }; 2265 2266 typedef struct us_node { 2267 nvlist_t *usn_nvl; 2268 uu_avl_node_t usn_avlnode; 2269 uu_list_node_t usn_listnode; 2270 } us_node_t; 2271 2272 typedef struct us_cbdata { 2273 nvlist_t **cb_nvlp; 2274 uu_avl_pool_t *cb_avl_pool; 2275 uu_avl_t *cb_avl; 2276 boolean_t cb_numname; 2277 boolean_t cb_nicenum; 2278 boolean_t cb_sid2posix; 2279 zfs_userquota_prop_t cb_prop; 2280 zfs_sort_column_t *cb_sortcol; 2281 size_t cb_width[USFIELD_LAST]; 2282 } us_cbdata_t; 2283 2284 static boolean_t us_populated = B_FALSE; 2285 2286 typedef struct { 2287 zfs_sort_column_t *si_sortcol; 2288 boolean_t si_numname; 2289 } us_sort_info_t; 2290 2291 static int 2292 us_field_index(char *field) 2293 { 2294 int i; 2295 2296 for (i = 0; i < USFIELD_LAST; i++) { 2297 if (strcmp(field, us_field_names[i]) == 0) 2298 return (i); 2299 } 2300 2301 return (-1); 2302 } 2303 2304 static int 2305 us_compare(const void *larg, const void *rarg, void *unused) 2306 { 2307 const us_node_t *l = larg; 2308 const us_node_t *r = rarg; 2309 us_sort_info_t *si = (us_sort_info_t *)unused; 2310 zfs_sort_column_t *sortcol = si->si_sortcol; 2311 boolean_t numname = si->si_numname; 2312 nvlist_t *lnvl = l->usn_nvl; 2313 nvlist_t *rnvl = r->usn_nvl; 2314 int rc = 0; 2315 boolean_t lvb, rvb; 2316 2317 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2318 char *lvstr = ""; 2319 char *rvstr = ""; 2320 uint32_t lv32 = 0; 2321 uint32_t rv32 = 0; 2322 uint64_t lv64 = 0; 2323 uint64_t rv64 = 0; 2324 zfs_prop_t prop = sortcol->sc_prop; 2325 const char *propname = NULL; 2326 boolean_t reverse = sortcol->sc_reverse; 2327 2328 switch (prop) { 2329 case ZFS_PROP_TYPE: 2330 propname = "type"; 2331 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2332 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2333 if (rv32 != lv32) 2334 rc = (rv32 < lv32) ? 1 : -1; 2335 break; 2336 case ZFS_PROP_NAME: 2337 propname = "name"; 2338 if (numname) { 2339 (void) nvlist_lookup_uint64(lnvl, propname, 2340 &lv64); 2341 (void) nvlist_lookup_uint64(rnvl, propname, 2342 &rv64); 2343 if (rv64 != lv64) 2344 rc = (rv64 < lv64) ? 1 : -1; 2345 } else { 2346 (void) nvlist_lookup_string(lnvl, propname, 2347 &lvstr); 2348 (void) nvlist_lookup_string(rnvl, propname, 2349 &rvstr); 2350 rc = strcmp(lvstr, rvstr); 2351 } 2352 break; 2353 case ZFS_PROP_USED: 2354 case ZFS_PROP_QUOTA: 2355 if (!us_populated) 2356 break; 2357 if (prop == ZFS_PROP_USED) 2358 propname = "used"; 2359 else 2360 propname = "quota"; 2361 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2362 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2363 if (rv64 != lv64) 2364 rc = (rv64 < lv64) ? 1 : -1; 2365 break; 2366 2367 default: 2368 break; 2369 } 2370 2371 if (rc != 0) { 2372 if (rc < 0) 2373 return (reverse ? 1 : -1); 2374 else 2375 return (reverse ? -1 : 1); 2376 } 2377 } 2378 2379 /* 2380 * If entries still seem to be the same, check if they are of the same 2381 * type (smbentity is added only if we are doing SID to POSIX ID 2382 * translation where we can have duplicate type/name combinations). 2383 */ 2384 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2385 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2386 lvb != rvb) 2387 return (lvb < rvb ? -1 : 1); 2388 2389 return (0); 2390 } 2391 2392 static inline const char * 2393 us_type2str(unsigned field_type) 2394 { 2395 switch (field_type) { 2396 case USTYPE_PSX_USR: 2397 return ("POSIX User"); 2398 case USTYPE_PSX_GRP: 2399 return ("POSIX Group"); 2400 case USTYPE_SMB_USR: 2401 return ("SMB User"); 2402 case USTYPE_SMB_GRP: 2403 return ("SMB Group"); 2404 default: 2405 return ("Undefined"); 2406 } 2407 } 2408 2409 static int 2410 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2411 { 2412 us_cbdata_t *cb = (us_cbdata_t *)arg; 2413 zfs_userquota_prop_t prop = cb->cb_prop; 2414 char *name = NULL; 2415 char *propname; 2416 char sizebuf[32]; 2417 us_node_t *node; 2418 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2419 uu_avl_t *avl = cb->cb_avl; 2420 uu_avl_index_t idx; 2421 nvlist_t *props; 2422 us_node_t *n; 2423 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2424 unsigned type = 0; 2425 const char *typestr; 2426 size_t namelen; 2427 size_t typelen; 2428 size_t sizelen; 2429 int typeidx, nameidx, sizeidx; 2430 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2431 boolean_t smbentity = B_FALSE; 2432 2433 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2434 nomem(); 2435 node = safe_malloc(sizeof (us_node_t)); 2436 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2437 node->usn_nvl = props; 2438 2439 if (domain != NULL && domain[0] != '\0') { 2440 /* SMB */ 2441 char sid[ZFS_MAXNAMELEN + 32]; 2442 uid_t id; 2443 int err; 2444 int flag = IDMAP_REQ_FLG_USE_CACHE; 2445 2446 smbentity = B_TRUE; 2447 2448 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2449 2450 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2451 type = USTYPE_SMB_GRP; 2452 err = sid_to_id(sid, B_FALSE, &id); 2453 } else { 2454 type = USTYPE_SMB_USR; 2455 err = sid_to_id(sid, B_TRUE, &id); 2456 } 2457 2458 if (err == 0) { 2459 rid = id; 2460 if (!cb->cb_sid2posix) { 2461 if (type == USTYPE_SMB_USR) { 2462 (void) idmap_getwinnamebyuid(rid, flag, 2463 &name, NULL); 2464 } else { 2465 (void) idmap_getwinnamebygid(rid, flag, 2466 &name, NULL); 2467 } 2468 if (name == NULL) 2469 name = sid; 2470 } 2471 } 2472 } 2473 2474 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2475 /* POSIX or -i */ 2476 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2477 type = USTYPE_PSX_GRP; 2478 if (!cb->cb_numname) { 2479 struct group *g; 2480 2481 if ((g = getgrgid(rid)) != NULL) 2482 name = g->gr_name; 2483 } 2484 } else { 2485 type = USTYPE_PSX_USR; 2486 if (!cb->cb_numname) { 2487 struct passwd *p; 2488 2489 if ((p = getpwuid(rid)) != NULL) 2490 name = p->pw_name; 2491 } 2492 } 2493 } 2494 2495 /* 2496 * Make sure that the type/name combination is unique when doing 2497 * SID to POSIX ID translation (hence changing the type from SMB to 2498 * POSIX). 2499 */ 2500 if (cb->cb_sid2posix && 2501 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2502 nomem(); 2503 2504 /* Calculate/update width of TYPE field */ 2505 typestr = us_type2str(type); 2506 typelen = strlen(gettext(typestr)); 2507 typeidx = us_field_index("type"); 2508 if (typelen > cb->cb_width[typeidx]) 2509 cb->cb_width[typeidx] = typelen; 2510 if (nvlist_add_uint32(props, "type", type) != 0) 2511 nomem(); 2512 2513 /* Calculate/update width of NAME field */ 2514 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2515 if (nvlist_add_uint64(props, "name", rid) != 0) 2516 nomem(); 2517 namelen = snprintf(NULL, 0, "%u", rid); 2518 } else { 2519 if (nvlist_add_string(props, "name", name) != 0) 2520 nomem(); 2521 namelen = strlen(name); 2522 } 2523 nameidx = us_field_index("name"); 2524 if (namelen > cb->cb_width[nameidx]) 2525 cb->cb_width[nameidx] = namelen; 2526 2527 /* 2528 * Check if this type/name combination is in the list and update it; 2529 * otherwise add new node to the list. 2530 */ 2531 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2532 uu_avl_insert(avl, node, idx); 2533 } else { 2534 nvlist_free(props); 2535 free(node); 2536 node = n; 2537 props = node->usn_nvl; 2538 } 2539 2540 /* Calculate/update width of USED/QUOTA fields */ 2541 if (cb->cb_nicenum) 2542 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2543 else 2544 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2545 sizelen = strlen(sizebuf); 2546 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2547 propname = "used"; 2548 if (!nvlist_exists(props, "quota")) 2549 (void) nvlist_add_uint64(props, "quota", 0); 2550 } else { 2551 propname = "quota"; 2552 if (!nvlist_exists(props, "used")) 2553 (void) nvlist_add_uint64(props, "used", 0); 2554 } 2555 sizeidx = us_field_index(propname); 2556 if (sizelen > cb->cb_width[sizeidx]) 2557 cb->cb_width[sizeidx] = sizelen; 2558 2559 if (nvlist_add_uint64(props, propname, space) != 0) 2560 nomem(); 2561 2562 return (0); 2563 } 2564 2565 static void 2566 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2567 size_t *width, us_node_t *node) 2568 { 2569 nvlist_t *nvl = node->usn_nvl; 2570 char valstr[ZFS_MAXNAMELEN]; 2571 boolean_t first = B_TRUE; 2572 int cfield = 0; 2573 int field; 2574 uint32_t ustype; 2575 2576 /* Check type */ 2577 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2578 if (!(ustype & types)) 2579 return; 2580 2581 while ((field = fields[cfield]) != USFIELD_LAST) { 2582 nvpair_t *nvp = NULL; 2583 data_type_t type; 2584 uint32_t val32; 2585 uint64_t val64; 2586 char *strval = NULL; 2587 2588 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2589 if (strcmp(nvpair_name(nvp), 2590 us_field_names[field]) == 0) 2591 break; 2592 } 2593 2594 type = nvpair_type(nvp); 2595 switch (type) { 2596 case DATA_TYPE_UINT32: 2597 (void) nvpair_value_uint32(nvp, &val32); 2598 break; 2599 case DATA_TYPE_UINT64: 2600 (void) nvpair_value_uint64(nvp, &val64); 2601 break; 2602 case DATA_TYPE_STRING: 2603 (void) nvpair_value_string(nvp, &strval); 2604 break; 2605 default: 2606 (void) fprintf(stderr, "invalid data type\n"); 2607 } 2608 2609 switch (field) { 2610 case USFIELD_TYPE: 2611 strval = (char *)us_type2str(val32); 2612 break; 2613 case USFIELD_NAME: 2614 if (type == DATA_TYPE_UINT64) { 2615 (void) sprintf(valstr, "%llu", val64); 2616 strval = valstr; 2617 } 2618 break; 2619 case USFIELD_USED: 2620 case USFIELD_QUOTA: 2621 if (type == DATA_TYPE_UINT64) { 2622 if (parsable) { 2623 (void) sprintf(valstr, "%llu", val64); 2624 } else { 2625 zfs_nicenum(val64, valstr, 2626 sizeof (valstr)); 2627 } 2628 if (field == USFIELD_QUOTA && 2629 strcmp(valstr, "0") == 0) 2630 strval = "none"; 2631 else 2632 strval = valstr; 2633 } 2634 break; 2635 } 2636 2637 if (!first) { 2638 if (scripted) 2639 (void) printf("\t"); 2640 else 2641 (void) printf(" "); 2642 } 2643 if (scripted) 2644 (void) printf("%s", strval); 2645 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2646 (void) printf("%-*s", width[field], strval); 2647 else 2648 (void) printf("%*s", width[field], strval); 2649 2650 first = B_FALSE; 2651 cfield++; 2652 } 2653 2654 (void) printf("\n"); 2655 } 2656 2657 static void 2658 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2659 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2660 { 2661 us_node_t *node; 2662 const char *col; 2663 int cfield = 0; 2664 int field; 2665 2666 if (!scripted) { 2667 boolean_t first = B_TRUE; 2668 2669 while ((field = fields[cfield]) != USFIELD_LAST) { 2670 col = gettext(us_field_hdr[field]); 2671 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2672 (void) printf(first ? "%-*s" : " %-*s", 2673 width[field], col); 2674 } else { 2675 (void) printf(first ? "%*s" : " %*s", 2676 width[field], col); 2677 } 2678 first = B_FALSE; 2679 cfield++; 2680 } 2681 (void) printf("\n"); 2682 } 2683 2684 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2685 print_us_node(scripted, parsable, fields, types, width, node); 2686 if (rmnode) 2687 nvlist_free(node->usn_nvl); 2688 } 2689 } 2690 2691 static int 2692 zfs_do_userspace(int argc, char **argv) 2693 { 2694 zfs_handle_t *zhp; 2695 zfs_userquota_prop_t p; 2696 uu_avl_pool_t *avl_pool; 2697 uu_avl_t *avl_tree; 2698 uu_avl_walk_t *walk; 2699 char *delim; 2700 char deffields[] = "type,name,used,quota"; 2701 char *ofield = NULL; 2702 char *tfield = NULL; 2703 int cfield = 0; 2704 int fields[256]; 2705 int i; 2706 boolean_t scripted = B_FALSE; 2707 boolean_t prtnum = B_FALSE; 2708 boolean_t parsable = B_FALSE; 2709 boolean_t sid2posix = B_FALSE; 2710 int ret = 0; 2711 int c; 2712 zfs_sort_column_t *sortcol = NULL; 2713 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2714 us_cbdata_t cb; 2715 us_node_t *node; 2716 us_node_t *rmnode; 2717 uu_list_pool_t *listpool; 2718 uu_list_t *list; 2719 uu_avl_index_t idx = 0; 2720 uu_list_index_t idx2 = 0; 2721 2722 if (argc < 2) 2723 usage(B_FALSE); 2724 2725 if (strcmp(argv[0], "groupspace") == 0) 2726 /* Toggle default group types */ 2727 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2728 2729 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2730 switch (c) { 2731 case 'n': 2732 prtnum = B_TRUE; 2733 break; 2734 case 'H': 2735 scripted = B_TRUE; 2736 break; 2737 case 'p': 2738 parsable = B_TRUE; 2739 break; 2740 case 'o': 2741 ofield = optarg; 2742 break; 2743 case 's': 2744 case 'S': 2745 if (zfs_add_sort_column(&sortcol, optarg, 2746 c == 's' ? B_FALSE : B_TRUE) != 0) { 2747 (void) fprintf(stderr, 2748 gettext("invalid field '%s'\n"), optarg); 2749 usage(B_FALSE); 2750 } 2751 break; 2752 case 't': 2753 tfield = optarg; 2754 break; 2755 case 'i': 2756 sid2posix = B_TRUE; 2757 break; 2758 case ':': 2759 (void) fprintf(stderr, gettext("missing argument for " 2760 "'%c' option\n"), optopt); 2761 usage(B_FALSE); 2762 break; 2763 case '?': 2764 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2765 optopt); 2766 usage(B_FALSE); 2767 } 2768 } 2769 2770 argc -= optind; 2771 argv += optind; 2772 2773 if (argc < 1) { 2774 (void) fprintf(stderr, gettext("missing dataset name\n")); 2775 usage(B_FALSE); 2776 } 2777 if (argc > 1) { 2778 (void) fprintf(stderr, gettext("too many arguments\n")); 2779 usage(B_FALSE); 2780 } 2781 2782 /* Use default output fields if not specified using -o */ 2783 if (ofield == NULL) 2784 ofield = deffields; 2785 do { 2786 if ((delim = strchr(ofield, ',')) != NULL) 2787 *delim = '\0'; 2788 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2789 (void) fprintf(stderr, gettext("invalid type '%s' " 2790 "for -o option\n"), ofield); 2791 return (-1); 2792 } 2793 if (delim != NULL) 2794 ofield = delim + 1; 2795 } while (delim != NULL); 2796 fields[cfield] = USFIELD_LAST; 2797 2798 /* Override output types (-t option) */ 2799 if (tfield != NULL) { 2800 types = 0; 2801 2802 do { 2803 boolean_t found = B_FALSE; 2804 2805 if ((delim = strchr(tfield, ',')) != NULL) 2806 *delim = '\0'; 2807 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2808 i++) { 2809 if (strcmp(tfield, us_type_names[i]) == 0) { 2810 found = B_TRUE; 2811 types |= us_type_bits[i]; 2812 break; 2813 } 2814 } 2815 if (!found) { 2816 (void) fprintf(stderr, gettext("invalid type " 2817 "'%s' for -t option\n"), tfield); 2818 return (-1); 2819 } 2820 if (delim != NULL) 2821 tfield = delim + 1; 2822 } while (delim != NULL); 2823 } 2824 2825 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2826 return (1); 2827 2828 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2829 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2830 nomem(); 2831 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2832 nomem(); 2833 2834 /* Always add default sorting columns */ 2835 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2836 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2837 2838 cb.cb_sortcol = sortcol; 2839 cb.cb_numname = prtnum; 2840 cb.cb_nicenum = !parsable; 2841 cb.cb_avl_pool = avl_pool; 2842 cb.cb_avl = avl_tree; 2843 cb.cb_sid2posix = sid2posix; 2844 2845 for (i = 0; i < USFIELD_LAST; i++) 2846 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2847 2848 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2849 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2850 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2851 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2852 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2853 continue; 2854 cb.cb_prop = p; 2855 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2856 return (ret); 2857 } 2858 2859 /* Sort the list */ 2860 if ((node = uu_avl_first(avl_tree)) == NULL) 2861 return (0); 2862 2863 us_populated = B_TRUE; 2864 2865 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2866 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2867 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2868 uu_list_node_init(node, &node->usn_listnode, listpool); 2869 2870 while (node != NULL) { 2871 rmnode = node; 2872 node = uu_avl_next(avl_tree, node); 2873 uu_avl_remove(avl_tree, rmnode); 2874 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2875 uu_list_insert(list, rmnode, idx2); 2876 } 2877 2878 for (node = uu_list_first(list); node != NULL; 2879 node = uu_list_next(list, node)) { 2880 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2881 2882 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2883 uu_avl_insert(avl_tree, node, idx); 2884 } 2885 2886 uu_list_destroy(list); 2887 uu_list_pool_destroy(listpool); 2888 2889 /* Print and free node nvlist memory */ 2890 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2891 cb.cb_avl); 2892 2893 zfs_free_sort_columns(sortcol); 2894 2895 /* Clean up the AVL tree */ 2896 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2897 nomem(); 2898 2899 while ((node = uu_avl_walk_next(walk)) != NULL) { 2900 uu_avl_remove(cb.cb_avl, node); 2901 free(node); 2902 } 2903 2904 uu_avl_walk_end(walk); 2905 uu_avl_destroy(avl_tree); 2906 uu_avl_pool_destroy(avl_pool); 2907 2908 return (ret); 2909 } 2910 2911 /* 2912 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2913 * [-t type[,...]] [filesystem|volume|snapshot] ... 2914 * 2915 * -H Scripted mode; elide headers and separate columns by tabs. 2916 * -p Display values in parsable (literal) format. 2917 * -r Recurse over all children. 2918 * -d Limit recursion by depth. 2919 * -o Control which fields to display. 2920 * -s Specify sort columns, descending order. 2921 * -S Specify sort columns, ascending order. 2922 * -t Control which object types to display. 2923 * 2924 * When given no arguments, list all filesystems in the system. 2925 * Otherwise, list the specified datasets, optionally recursing down them if 2926 * '-r' is specified. 2927 */ 2928 typedef struct list_cbdata { 2929 boolean_t cb_first; 2930 boolean_t cb_literal; 2931 boolean_t cb_scripted; 2932 zprop_list_t *cb_proplist; 2933 } list_cbdata_t; 2934 2935 /* 2936 * Given a list of columns to display, output appropriate headers for each one. 2937 */ 2938 static void 2939 print_header(list_cbdata_t *cb) 2940 { 2941 zprop_list_t *pl = cb->cb_proplist; 2942 char headerbuf[ZFS_MAXPROPLEN]; 2943 const char *header; 2944 int i; 2945 boolean_t first = B_TRUE; 2946 boolean_t right_justify; 2947 2948 for (; pl != NULL; pl = pl->pl_next) { 2949 if (!first) { 2950 (void) printf(" "); 2951 } else { 2952 first = B_FALSE; 2953 } 2954 2955 right_justify = B_FALSE; 2956 if (pl->pl_prop != ZPROP_INVAL) { 2957 header = zfs_prop_column_name(pl->pl_prop); 2958 right_justify = zfs_prop_align_right(pl->pl_prop); 2959 } else { 2960 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2961 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2962 headerbuf[i] = '\0'; 2963 header = headerbuf; 2964 } 2965 2966 if (pl->pl_next == NULL && !right_justify) 2967 (void) printf("%s", header); 2968 else if (right_justify) 2969 (void) printf("%*s", pl->pl_width, header); 2970 else 2971 (void) printf("%-*s", pl->pl_width, header); 2972 } 2973 2974 (void) printf("\n"); 2975 } 2976 2977 /* 2978 * Given a dataset and a list of fields, print out all the properties according 2979 * to the described layout. 2980 */ 2981 static void 2982 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2983 { 2984 zprop_list_t *pl = cb->cb_proplist; 2985 boolean_t first = B_TRUE; 2986 char property[ZFS_MAXPROPLEN]; 2987 nvlist_t *userprops = zfs_get_user_props(zhp); 2988 nvlist_t *propval; 2989 char *propstr; 2990 boolean_t right_justify; 2991 2992 for (; pl != NULL; pl = pl->pl_next) { 2993 if (!first) { 2994 if (cb->cb_scripted) 2995 (void) printf("\t"); 2996 else 2997 (void) printf(" "); 2998 } else { 2999 first = B_FALSE; 3000 } 3001 3002 if (pl->pl_prop != ZPROP_INVAL) { 3003 if (zfs_prop_get(zhp, pl->pl_prop, property, 3004 sizeof (property), NULL, NULL, 0, 3005 cb->cb_literal) != 0) 3006 propstr = "-"; 3007 else 3008 propstr = property; 3009 right_justify = zfs_prop_align_right(pl->pl_prop); 3010 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3011 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3012 property, sizeof (property), cb->cb_literal) != 0) 3013 propstr = "-"; 3014 else 3015 propstr = property; 3016 right_justify = B_TRUE; 3017 } else if (zfs_prop_written(pl->pl_user_prop)) { 3018 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3019 property, sizeof (property), cb->cb_literal) != 0) 3020 propstr = "-"; 3021 else 3022 propstr = property; 3023 right_justify = B_TRUE; 3024 } else { 3025 if (nvlist_lookup_nvlist(userprops, 3026 pl->pl_user_prop, &propval) != 0) 3027 propstr = "-"; 3028 else 3029 verify(nvlist_lookup_string(propval, 3030 ZPROP_VALUE, &propstr) == 0); 3031 right_justify = B_FALSE; 3032 } 3033 3034 /* 3035 * If this is being called in scripted mode, or if this is the 3036 * last column and it is left-justified, don't include a width 3037 * format specifier. 3038 */ 3039 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3040 (void) printf("%s", propstr); 3041 else if (right_justify) 3042 (void) printf("%*s", pl->pl_width, propstr); 3043 else 3044 (void) printf("%-*s", pl->pl_width, propstr); 3045 } 3046 3047 (void) printf("\n"); 3048 } 3049 3050 /* 3051 * Generic callback function to list a dataset or snapshot. 3052 */ 3053 static int 3054 list_callback(zfs_handle_t *zhp, void *data) 3055 { 3056 list_cbdata_t *cbp = data; 3057 3058 if (cbp->cb_first) { 3059 if (!cbp->cb_scripted) 3060 print_header(cbp); 3061 cbp->cb_first = B_FALSE; 3062 } 3063 3064 print_dataset(zhp, cbp); 3065 3066 return (0); 3067 } 3068 3069 static int 3070 zfs_do_list(int argc, char **argv) 3071 { 3072 int c; 3073 static char default_fields[] = 3074 "name,used,available,referenced,mountpoint"; 3075 int types = ZFS_TYPE_DATASET; 3076 boolean_t types_specified = B_FALSE; 3077 char *fields = NULL; 3078 list_cbdata_t cb = { 0 }; 3079 char *value; 3080 int limit = 0; 3081 int ret = 0; 3082 zfs_sort_column_t *sortcol = NULL; 3083 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3084 3085 /* check options */ 3086 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3087 switch (c) { 3088 case 'o': 3089 fields = optarg; 3090 break; 3091 case 'p': 3092 cb.cb_literal = B_TRUE; 3093 flags |= ZFS_ITER_LITERAL_PROPS; 3094 break; 3095 case 'd': 3096 limit = parse_depth(optarg, &flags); 3097 break; 3098 case 'r': 3099 flags |= ZFS_ITER_RECURSE; 3100 break; 3101 case 'H': 3102 cb.cb_scripted = B_TRUE; 3103 break; 3104 case 's': 3105 if (zfs_add_sort_column(&sortcol, optarg, 3106 B_FALSE) != 0) { 3107 (void) fprintf(stderr, 3108 gettext("invalid property '%s'\n"), optarg); 3109 usage(B_FALSE); 3110 } 3111 break; 3112 case 'S': 3113 if (zfs_add_sort_column(&sortcol, optarg, 3114 B_TRUE) != 0) { 3115 (void) fprintf(stderr, 3116 gettext("invalid property '%s'\n"), optarg); 3117 usage(B_FALSE); 3118 } 3119 break; 3120 case 't': 3121 types = 0; 3122 types_specified = B_TRUE; 3123 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3124 while (*optarg != '\0') { 3125 static char *type_subopts[] = { "filesystem", 3126 "volume", "snapshot", "snap", "bookmark", 3127 "all", NULL }; 3128 3129 switch (getsubopt(&optarg, type_subopts, 3130 &value)) { 3131 case 0: 3132 types |= ZFS_TYPE_FILESYSTEM; 3133 break; 3134 case 1: 3135 types |= ZFS_TYPE_VOLUME; 3136 break; 3137 case 2: 3138 case 3: 3139 types |= ZFS_TYPE_SNAPSHOT; 3140 break; 3141 case 4: 3142 types |= ZFS_TYPE_BOOKMARK; 3143 break; 3144 case 5: 3145 types = ZFS_TYPE_DATASET | 3146 ZFS_TYPE_BOOKMARK; 3147 break; 3148 default: 3149 (void) fprintf(stderr, 3150 gettext("invalid type '%s'\n"), 3151 value); 3152 usage(B_FALSE); 3153 } 3154 } 3155 break; 3156 case ':': 3157 (void) fprintf(stderr, gettext("missing argument for " 3158 "'%c' option\n"), optopt); 3159 usage(B_FALSE); 3160 break; 3161 case '?': 3162 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3163 optopt); 3164 usage(B_FALSE); 3165 } 3166 } 3167 3168 argc -= optind; 3169 argv += optind; 3170 3171 if (fields == NULL) 3172 fields = default_fields; 3173 3174 /* 3175 * If "-o space" and no types were specified, don't display snapshots. 3176 */ 3177 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3178 types &= ~ZFS_TYPE_SNAPSHOT; 3179 3180 /* 3181 * If the user specifies '-o all', the zprop_get_list() doesn't 3182 * normally include the name of the dataset. For 'zfs list', we always 3183 * want this property to be first. 3184 */ 3185 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3186 != 0) 3187 usage(B_FALSE); 3188 3189 cb.cb_first = B_TRUE; 3190 3191 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3192 limit, list_callback, &cb); 3193 3194 zprop_free_list(cb.cb_proplist); 3195 zfs_free_sort_columns(sortcol); 3196 3197 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3198 (void) printf(gettext("no datasets available\n")); 3199 3200 return (ret); 3201 } 3202 3203 /* 3204 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3205 * zfs rename [-f] -p <fs | vol> <fs | vol> 3206 * zfs rename -r <snap> <snap> 3207 * 3208 * Renames the given dataset to another of the same type. 3209 * 3210 * The '-p' flag creates all the non-existing ancestors of the target first. 3211 */ 3212 /* ARGSUSED */ 3213 static int 3214 zfs_do_rename(int argc, char **argv) 3215 { 3216 zfs_handle_t *zhp; 3217 int c; 3218 int ret = 0; 3219 boolean_t recurse = B_FALSE; 3220 boolean_t parents = B_FALSE; 3221 boolean_t force_unmount = B_FALSE; 3222 3223 /* check options */ 3224 while ((c = getopt(argc, argv, "prf")) != -1) { 3225 switch (c) { 3226 case 'p': 3227 parents = B_TRUE; 3228 break; 3229 case 'r': 3230 recurse = B_TRUE; 3231 break; 3232 case 'f': 3233 force_unmount = B_TRUE; 3234 break; 3235 case '?': 3236 default: 3237 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3238 optopt); 3239 usage(B_FALSE); 3240 } 3241 } 3242 3243 argc -= optind; 3244 argv += optind; 3245 3246 /* check number of arguments */ 3247 if (argc < 1) { 3248 (void) fprintf(stderr, gettext("missing source dataset " 3249 "argument\n")); 3250 usage(B_FALSE); 3251 } 3252 if (argc < 2) { 3253 (void) fprintf(stderr, gettext("missing target dataset " 3254 "argument\n")); 3255 usage(B_FALSE); 3256 } 3257 if (argc > 2) { 3258 (void) fprintf(stderr, gettext("too many arguments\n")); 3259 usage(B_FALSE); 3260 } 3261 3262 if (recurse && parents) { 3263 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3264 "exclusive\n")); 3265 usage(B_FALSE); 3266 } 3267 3268 if (recurse && strchr(argv[0], '@') == 0) { 3269 (void) fprintf(stderr, gettext("source dataset for recursive " 3270 "rename must be a snapshot\n")); 3271 usage(B_FALSE); 3272 } 3273 3274 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3275 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3276 return (1); 3277 3278 /* If we were asked and the name looks good, try to create ancestors. */ 3279 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3280 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3281 zfs_close(zhp); 3282 return (1); 3283 } 3284 3285 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3286 3287 zfs_close(zhp); 3288 return (ret); 3289 } 3290 3291 /* 3292 * zfs promote <fs> 3293 * 3294 * Promotes the given clone fs to be the parent 3295 */ 3296 /* ARGSUSED */ 3297 static int 3298 zfs_do_promote(int argc, char **argv) 3299 { 3300 zfs_handle_t *zhp; 3301 int ret = 0; 3302 3303 /* check options */ 3304 if (argc > 1 && argv[1][0] == '-') { 3305 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3306 argv[1][1]); 3307 usage(B_FALSE); 3308 } 3309 3310 /* check number of arguments */ 3311 if (argc < 2) { 3312 (void) fprintf(stderr, gettext("missing clone filesystem" 3313 " argument\n")); 3314 usage(B_FALSE); 3315 } 3316 if (argc > 2) { 3317 (void) fprintf(stderr, gettext("too many arguments\n")); 3318 usage(B_FALSE); 3319 } 3320 3321 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3322 if (zhp == NULL) 3323 return (1); 3324 3325 ret = (zfs_promote(zhp) != 0); 3326 3327 3328 zfs_close(zhp); 3329 return (ret); 3330 } 3331 3332 /* 3333 * zfs rollback [-rRf] <snapshot> 3334 * 3335 * -r Delete any intervening snapshots before doing rollback 3336 * -R Delete any snapshots and their clones 3337 * -f ignored for backwards compatability 3338 * 3339 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3340 * since then and making it the active dataset. If more recent snapshots exist, 3341 * the command will complain unless the '-r' flag is given. 3342 */ 3343 typedef struct rollback_cbdata { 3344 uint64_t cb_create; 3345 boolean_t cb_first; 3346 int cb_doclones; 3347 char *cb_target; 3348 int cb_error; 3349 boolean_t cb_recurse; 3350 } rollback_cbdata_t; 3351 3352 static int 3353 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3354 { 3355 rollback_cbdata_t *cbp = data; 3356 3357 if (cbp->cb_first && cbp->cb_recurse) { 3358 (void) fprintf(stderr, gettext("cannot rollback to " 3359 "'%s': clones of previous snapshots exist\n"), 3360 cbp->cb_target); 3361 (void) fprintf(stderr, gettext("use '-R' to " 3362 "force deletion of the following clones and " 3363 "dependents:\n")); 3364 cbp->cb_first = 0; 3365 cbp->cb_error = 1; 3366 } 3367 3368 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3369 3370 zfs_close(zhp); 3371 return (0); 3372 } 3373 3374 /* 3375 * Report any snapshots more recent than the one specified. Used when '-r' is 3376 * not specified. We reuse this same callback for the snapshot dependents - if 3377 * 'cb_dependent' is set, then this is a dependent and we should report it 3378 * without checking the transaction group. 3379 */ 3380 static int 3381 rollback_check(zfs_handle_t *zhp, void *data) 3382 { 3383 rollback_cbdata_t *cbp = data; 3384 3385 if (cbp->cb_doclones) { 3386 zfs_close(zhp); 3387 return (0); 3388 } 3389 3390 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3391 if (cbp->cb_first && !cbp->cb_recurse) { 3392 (void) fprintf(stderr, gettext("cannot " 3393 "rollback to '%s': more recent snapshots " 3394 "or bookmarks exist\n"), 3395 cbp->cb_target); 3396 (void) fprintf(stderr, gettext("use '-r' to " 3397 "force deletion of the following " 3398 "snapshots and bookmarks:\n")); 3399 cbp->cb_first = 0; 3400 cbp->cb_error = 1; 3401 } 3402 3403 if (cbp->cb_recurse) { 3404 if (zfs_iter_dependents(zhp, B_TRUE, 3405 rollback_check_dependent, cbp) != 0) { 3406 zfs_close(zhp); 3407 return (-1); 3408 } 3409 } else { 3410 (void) fprintf(stderr, "%s\n", 3411 zfs_get_name(zhp)); 3412 } 3413 } 3414 zfs_close(zhp); 3415 return (0); 3416 } 3417 3418 static int 3419 zfs_do_rollback(int argc, char **argv) 3420 { 3421 int ret = 0; 3422 int c; 3423 boolean_t force = B_FALSE; 3424 rollback_cbdata_t cb = { 0 }; 3425 zfs_handle_t *zhp, *snap; 3426 char parentname[ZFS_MAXNAMELEN]; 3427 char *delim; 3428 3429 /* check options */ 3430 while ((c = getopt(argc, argv, "rRf")) != -1) { 3431 switch (c) { 3432 case 'r': 3433 cb.cb_recurse = 1; 3434 break; 3435 case 'R': 3436 cb.cb_recurse = 1; 3437 cb.cb_doclones = 1; 3438 break; 3439 case 'f': 3440 force = B_TRUE; 3441 break; 3442 case '?': 3443 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3444 optopt); 3445 usage(B_FALSE); 3446 } 3447 } 3448 3449 argc -= optind; 3450 argv += optind; 3451 3452 /* check number of arguments */ 3453 if (argc < 1) { 3454 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3455 usage(B_FALSE); 3456 } 3457 if (argc > 1) { 3458 (void) fprintf(stderr, gettext("too many arguments\n")); 3459 usage(B_FALSE); 3460 } 3461 3462 /* open the snapshot */ 3463 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3464 return (1); 3465 3466 /* open the parent dataset */ 3467 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3468 verify((delim = strrchr(parentname, '@')) != NULL); 3469 *delim = '\0'; 3470 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3471 zfs_close(snap); 3472 return (1); 3473 } 3474 3475 /* 3476 * Check for more recent snapshots and/or clones based on the presence 3477 * of '-r' and '-R'. 3478 */ 3479 cb.cb_target = argv[0]; 3480 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3481 cb.cb_first = B_TRUE; 3482 cb.cb_error = 0; 3483 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3484 goto out; 3485 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3486 goto out; 3487 3488 if ((ret = cb.cb_error) != 0) 3489 goto out; 3490 3491 /* 3492 * Rollback parent to the given snapshot. 3493 */ 3494 ret = zfs_rollback(zhp, snap, force); 3495 3496 out: 3497 zfs_close(snap); 3498 zfs_close(zhp); 3499 3500 if (ret == 0) 3501 return (0); 3502 else 3503 return (1); 3504 } 3505 3506 /* 3507 * zfs set property=value ... { fs | snap | vol } ... 3508 * 3509 * Sets the given properties for all datasets specified on the command line. 3510 */ 3511 3512 static int 3513 set_callback(zfs_handle_t *zhp, void *data) 3514 { 3515 nvlist_t *props = data; 3516 3517 if (zfs_prop_set_list(zhp, props) != 0) { 3518 switch (libzfs_errno(g_zfs)) { 3519 case EZFS_MOUNTFAILED: 3520 (void) fprintf(stderr, gettext("property may be set " 3521 "but unable to remount filesystem\n")); 3522 break; 3523 case EZFS_SHARENFSFAILED: 3524 (void) fprintf(stderr, gettext("property may be set " 3525 "but unable to reshare filesystem\n")); 3526 break; 3527 } 3528 return (1); 3529 } 3530 return (0); 3531 } 3532 3533 static int 3534 zfs_do_set(int argc, char **argv) 3535 { 3536 nvlist_t *props = NULL; 3537 int ds_start = -1; /* argv idx of first dataset arg */ 3538 int ret = 0; 3539 3540 /* check for options */ 3541 if (argc > 1 && argv[1][0] == '-') { 3542 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3543 argv[1][1]); 3544 usage(B_FALSE); 3545 } 3546 3547 /* check number of arguments */ 3548 if (argc < 2) { 3549 (void) fprintf(stderr, gettext("missing arguments\n")); 3550 usage(B_FALSE); 3551 } 3552 if (argc < 3) { 3553 if (strchr(argv[1], '=') == NULL) { 3554 (void) fprintf(stderr, gettext("missing property=value " 3555 "argument(s)\n")); 3556 } else { 3557 (void) fprintf(stderr, gettext("missing dataset " 3558 "name(s)\n")); 3559 } 3560 usage(B_FALSE); 3561 } 3562 3563 /* validate argument order: prop=val args followed by dataset args */ 3564 for (int i = 1; i < argc; i++) { 3565 if (strchr(argv[i], '=') != NULL) { 3566 if (ds_start > 0) { 3567 /* out-of-order prop=val argument */ 3568 (void) fprintf(stderr, gettext("invalid " 3569 "argument order\n"), i); 3570 usage(B_FALSE); 3571 } 3572 } else if (ds_start < 0) { 3573 ds_start = i; 3574 } 3575 } 3576 if (ds_start < 0) { 3577 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3578 usage(B_FALSE); 3579 } 3580 3581 /* Populate a list of property settings */ 3582 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3583 nomem(); 3584 for (int i = 1; i < ds_start; i++) { 3585 if ((ret = parseprop(props, argv[i])) != 0) 3586 goto error; 3587 } 3588 3589 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3590 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3591 3592 error: 3593 nvlist_free(props); 3594 return (ret); 3595 } 3596 3597 typedef struct snap_cbdata { 3598 nvlist_t *sd_nvl; 3599 boolean_t sd_recursive; 3600 const char *sd_snapname; 3601 } snap_cbdata_t; 3602 3603 static int 3604 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3605 { 3606 snap_cbdata_t *sd = arg; 3607 char *name; 3608 int rv = 0; 3609 int error; 3610 3611 if (sd->sd_recursive && 3612 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3613 zfs_close(zhp); 3614 return (0); 3615 } 3616 3617 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3618 if (error == -1) 3619 nomem(); 3620 fnvlist_add_boolean(sd->sd_nvl, name); 3621 free(name); 3622 3623 if (sd->sd_recursive) 3624 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3625 zfs_close(zhp); 3626 return (rv); 3627 } 3628 3629 /* 3630 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3631 * 3632 * Creates a snapshot with the given name. While functionally equivalent to 3633 * 'zfs create', it is a separate command to differentiate intent. 3634 */ 3635 static int 3636 zfs_do_snapshot(int argc, char **argv) 3637 { 3638 int ret = 0; 3639 char c; 3640 nvlist_t *props; 3641 snap_cbdata_t sd = { 0 }; 3642 boolean_t multiple_snaps = B_FALSE; 3643 3644 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3645 nomem(); 3646 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3647 nomem(); 3648 3649 /* check options */ 3650 while ((c = getopt(argc, argv, "ro:")) != -1) { 3651 switch (c) { 3652 case 'o': 3653 if (parseprop(props, optarg) != 0) 3654 return (1); 3655 break; 3656 case 'r': 3657 sd.sd_recursive = B_TRUE; 3658 multiple_snaps = B_TRUE; 3659 break; 3660 case '?': 3661 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3662 optopt); 3663 goto usage; 3664 } 3665 } 3666 3667 argc -= optind; 3668 argv += optind; 3669 3670 /* check number of arguments */ 3671 if (argc < 1) { 3672 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3673 goto usage; 3674 } 3675 3676 if (argc > 1) 3677 multiple_snaps = B_TRUE; 3678 for (; argc > 0; argc--, argv++) { 3679 char *atp; 3680 zfs_handle_t *zhp; 3681 3682 atp = strchr(argv[0], '@'); 3683 if (atp == NULL) 3684 goto usage; 3685 *atp = '\0'; 3686 sd.sd_snapname = atp + 1; 3687 zhp = zfs_open(g_zfs, argv[0], 3688 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3689 if (zhp == NULL) 3690 goto usage; 3691 if (zfs_snapshot_cb(zhp, &sd) != 0) 3692 goto usage; 3693 } 3694 3695 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3696 nvlist_free(sd.sd_nvl); 3697 nvlist_free(props); 3698 if (ret != 0 && multiple_snaps) 3699 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3700 return (ret != 0); 3701 3702 usage: 3703 nvlist_free(sd.sd_nvl); 3704 nvlist_free(props); 3705 usage(B_FALSE); 3706 return (-1); 3707 } 3708 3709 /* 3710 * Send a backup stream to stdout. 3711 */ 3712 static int 3713 zfs_do_send(int argc, char **argv) 3714 { 3715 char *fromname = NULL; 3716 char *toname = NULL; 3717 char *resume_token = NULL; 3718 char *cp; 3719 zfs_handle_t *zhp; 3720 sendflags_t flags = { 0 }; 3721 int c, err; 3722 nvlist_t *dbgnv = NULL; 3723 boolean_t extraverbose = B_FALSE; 3724 3725 /* check options */ 3726 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3727 switch (c) { 3728 case 'i': 3729 if (fromname) 3730 usage(B_FALSE); 3731 fromname = optarg; 3732 break; 3733 case 'I': 3734 if (fromname) 3735 usage(B_FALSE); 3736 fromname = optarg; 3737 flags.doall = B_TRUE; 3738 break; 3739 case 'R': 3740 flags.replicate = B_TRUE; 3741 break; 3742 case 'p': 3743 flags.props = B_TRUE; 3744 break; 3745 case 'P': 3746 flags.parsable = B_TRUE; 3747 flags.verbose = B_TRUE; 3748 break; 3749 case 'v': 3750 if (flags.verbose) 3751 extraverbose = B_TRUE; 3752 flags.verbose = B_TRUE; 3753 flags.progress = B_TRUE; 3754 break; 3755 case 'D': 3756 flags.dedup = B_TRUE; 3757 break; 3758 case 'n': 3759 flags.dryrun = B_TRUE; 3760 break; 3761 case 'L': 3762 flags.largeblock = B_TRUE; 3763 break; 3764 case 'e': 3765 flags.embed_data = B_TRUE; 3766 break; 3767 case 't': 3768 resume_token = optarg; 3769 break; 3770 case ':': 3771 (void) fprintf(stderr, gettext("missing argument for " 3772 "'%c' option\n"), optopt); 3773 usage(B_FALSE); 3774 break; 3775 case '?': 3776 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3777 optopt); 3778 usage(B_FALSE); 3779 } 3780 } 3781 3782 argc -= optind; 3783 argv += optind; 3784 3785 if (resume_token != NULL) { 3786 if (fromname != NULL || flags.replicate || flags.props || 3787 flags.dedup) { 3788 (void) fprintf(stderr, 3789 gettext("invalid flags combined with -t\n")); 3790 usage(B_FALSE); 3791 } 3792 if (argc != 0) { 3793 (void) fprintf(stderr, gettext("no additional " 3794 "arguments are permitted with -t\n")); 3795 usage(B_FALSE); 3796 } 3797 } else { 3798 if (argc < 1) { 3799 (void) fprintf(stderr, 3800 gettext("missing snapshot argument\n")); 3801 usage(B_FALSE); 3802 } 3803 if (argc > 1) { 3804 (void) fprintf(stderr, gettext("too many arguments\n")); 3805 usage(B_FALSE); 3806 } 3807 } 3808 3809 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3810 (void) fprintf(stderr, 3811 gettext("Error: Stream can not be written to a terminal.\n" 3812 "You must redirect standard output.\n")); 3813 return (1); 3814 } 3815 3816 if (resume_token != NULL) { 3817 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3818 resume_token)); 3819 } 3820 3821 /* 3822 * Special case sending a filesystem, or from a bookmark. 3823 */ 3824 if (strchr(argv[0], '@') == NULL || 3825 (fromname && strchr(fromname, '#') != NULL)) { 3826 char frombuf[ZFS_MAXNAMELEN]; 3827 enum lzc_send_flags lzc_flags = 0; 3828 3829 if (flags.replicate || flags.doall || flags.props || 3830 flags.dedup || flags.dryrun || flags.verbose || 3831 flags.progress) { 3832 (void) fprintf(stderr, 3833 gettext("Error: " 3834 "Unsupported flag with filesystem or bookmark.\n")); 3835 return (1); 3836 } 3837 3838 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3839 if (zhp == NULL) 3840 return (1); 3841 3842 if (flags.largeblock) 3843 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3844 if (flags.embed_data) 3845 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3846 3847 if (fromname != NULL && 3848 (fromname[0] == '#' || fromname[0] == '@')) { 3849 /* 3850 * Incremental source name begins with # or @. 3851 * Default to same fs as target. 3852 */ 3853 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3854 cp = strchr(frombuf, '@'); 3855 if (cp != NULL) 3856 *cp = '\0'; 3857 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3858 fromname = frombuf; 3859 } 3860 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3861 zfs_close(zhp); 3862 return (err != 0); 3863 } 3864 3865 cp = strchr(argv[0], '@'); 3866 *cp = '\0'; 3867 toname = cp + 1; 3868 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3869 if (zhp == NULL) 3870 return (1); 3871 3872 /* 3873 * If they specified the full path to the snapshot, chop off 3874 * everything except the short name of the snapshot, but special 3875 * case if they specify the origin. 3876 */ 3877 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3878 char origin[ZFS_MAXNAMELEN]; 3879 zprop_source_t src; 3880 3881 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3882 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3883 3884 if (strcmp(origin, fromname) == 0) { 3885 fromname = NULL; 3886 flags.fromorigin = B_TRUE; 3887 } else { 3888 *cp = '\0'; 3889 if (cp != fromname && strcmp(argv[0], fromname)) { 3890 (void) fprintf(stderr, 3891 gettext("incremental source must be " 3892 "in same filesystem\n")); 3893 usage(B_FALSE); 3894 } 3895 fromname = cp + 1; 3896 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3897 (void) fprintf(stderr, 3898 gettext("invalid incremental source\n")); 3899 usage(B_FALSE); 3900 } 3901 } 3902 } 3903 3904 if (flags.replicate && fromname == NULL) 3905 flags.doall = B_TRUE; 3906 3907 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3908 extraverbose ? &dbgnv : NULL); 3909 3910 if (extraverbose && dbgnv != NULL) { 3911 /* 3912 * dump_nvlist prints to stdout, but that's been 3913 * redirected to a file. Make it print to stderr 3914 * instead. 3915 */ 3916 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3917 dump_nvlist(dbgnv, 0); 3918 nvlist_free(dbgnv); 3919 } 3920 zfs_close(zhp); 3921 3922 return (err != 0); 3923 } 3924 3925 /* 3926 * Restore a backup stream from stdin. 3927 */ 3928 static int 3929 zfs_do_receive(int argc, char **argv) 3930 { 3931 int c, err = 0; 3932 recvflags_t flags = { 0 }; 3933 boolean_t abort_resumable = B_FALSE; 3934 3935 nvlist_t *props; 3936 nvpair_t *nvp = NULL; 3937 3938 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3939 nomem(); 3940 3941 /* check options */ 3942 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3943 switch (c) { 3944 case 'o': 3945 if (parseprop(props, optarg) != 0) 3946 return (1); 3947 break; 3948 case 'd': 3949 flags.isprefix = B_TRUE; 3950 break; 3951 case 'e': 3952 flags.isprefix = B_TRUE; 3953 flags.istail = B_TRUE; 3954 break; 3955 case 'n': 3956 flags.dryrun = B_TRUE; 3957 break; 3958 case 'u': 3959 flags.nomount = B_TRUE; 3960 break; 3961 case 'v': 3962 flags.verbose = B_TRUE; 3963 break; 3964 case 's': 3965 flags.resumable = B_TRUE; 3966 break; 3967 case 'F': 3968 flags.force = B_TRUE; 3969 break; 3970 case 'A': 3971 abort_resumable = B_TRUE; 3972 break; 3973 case ':': 3974 (void) fprintf(stderr, gettext("missing argument for " 3975 "'%c' option\n"), optopt); 3976 usage(B_FALSE); 3977 break; 3978 case '?': 3979 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3980 optopt); 3981 usage(B_FALSE); 3982 } 3983 } 3984 3985 argc -= optind; 3986 argv += optind; 3987 3988 /* check number of arguments */ 3989 if (argc < 1) { 3990 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3991 usage(B_FALSE); 3992 } 3993 if (argc > 1) { 3994 (void) fprintf(stderr, gettext("too many arguments\n")); 3995 usage(B_FALSE); 3996 } 3997 3998 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3999 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4000 (void) fprintf(stderr, gettext("invalid option")); 4001 usage(B_FALSE); 4002 } 4003 } 4004 4005 if (abort_resumable) { 4006 if (flags.isprefix || flags.istail || flags.dryrun || 4007 flags.resumable || flags.nomount) { 4008 (void) fprintf(stderr, gettext("invalid option")); 4009 usage(B_FALSE); 4010 } 4011 4012 char namebuf[ZFS_MAXNAMELEN]; 4013 (void) snprintf(namebuf, sizeof (namebuf), 4014 "%s/%%recv", argv[0]); 4015 4016 if (zfs_dataset_exists(g_zfs, namebuf, 4017 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4018 zfs_handle_t *zhp = zfs_open(g_zfs, 4019 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4020 if (zhp == NULL) 4021 return (1); 4022 err = zfs_destroy(zhp, B_FALSE); 4023 } else { 4024 zfs_handle_t *zhp = zfs_open(g_zfs, 4025 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4026 if (zhp == NULL) 4027 usage(B_FALSE); 4028 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4029 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4030 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4031 (void) fprintf(stderr, 4032 gettext("'%s' does not have any " 4033 "resumable receive state to abort\n"), 4034 argv[0]); 4035 return (1); 4036 } 4037 err = zfs_destroy(zhp, B_FALSE); 4038 } 4039 4040 return (err != 0); 4041 } 4042 4043 if (isatty(STDIN_FILENO)) { 4044 (void) fprintf(stderr, 4045 gettext("Error: Backup stream can not be read " 4046 "from a terminal.\n" 4047 "You must redirect standard input.\n")); 4048 return (1); 4049 } 4050 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4051 4052 return (err != 0); 4053 } 4054 4055 /* 4056 * allow/unallow stuff 4057 */ 4058 /* copied from zfs/sys/dsl_deleg.h */ 4059 #define ZFS_DELEG_PERM_CREATE "create" 4060 #define ZFS_DELEG_PERM_DESTROY "destroy" 4061 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4062 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4063 #define ZFS_DELEG_PERM_CLONE "clone" 4064 #define ZFS_DELEG_PERM_PROMOTE "promote" 4065 #define ZFS_DELEG_PERM_RENAME "rename" 4066 #define ZFS_DELEG_PERM_MOUNT "mount" 4067 #define ZFS_DELEG_PERM_SHARE "share" 4068 #define ZFS_DELEG_PERM_SEND "send" 4069 #define ZFS_DELEG_PERM_RECEIVE "receive" 4070 #define ZFS_DELEG_PERM_ALLOW "allow" 4071 #define ZFS_DELEG_PERM_USERPROP "userprop" 4072 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4073 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4074 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4075 #define ZFS_DELEG_PERM_USERUSED "userused" 4076 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4077 #define ZFS_DELEG_PERM_HOLD "hold" 4078 #define ZFS_DELEG_PERM_RELEASE "release" 4079 #define ZFS_DELEG_PERM_DIFF "diff" 4080 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4081 4082 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4083 4084 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4085 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4086 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4087 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4088 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4089 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4090 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4091 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4092 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4093 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4094 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4095 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4096 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4097 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4098 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4099 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4100 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4101 4102 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4103 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4104 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4105 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4106 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4107 { NULL, ZFS_DELEG_NOTE_NONE } 4108 }; 4109 4110 /* permission structure */ 4111 typedef struct deleg_perm { 4112 zfs_deleg_who_type_t dp_who_type; 4113 const char *dp_name; 4114 boolean_t dp_local; 4115 boolean_t dp_descend; 4116 } deleg_perm_t; 4117 4118 /* */ 4119 typedef struct deleg_perm_node { 4120 deleg_perm_t dpn_perm; 4121 4122 uu_avl_node_t dpn_avl_node; 4123 } deleg_perm_node_t; 4124 4125 typedef struct fs_perm fs_perm_t; 4126 4127 /* permissions set */ 4128 typedef struct who_perm { 4129 zfs_deleg_who_type_t who_type; 4130 const char *who_name; /* id */ 4131 char who_ug_name[256]; /* user/group name */ 4132 fs_perm_t *who_fsperm; /* uplink */ 4133 4134 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4135 } who_perm_t; 4136 4137 /* */ 4138 typedef struct who_perm_node { 4139 who_perm_t who_perm; 4140 uu_avl_node_t who_avl_node; 4141 } who_perm_node_t; 4142 4143 typedef struct fs_perm_set fs_perm_set_t; 4144 /* fs permissions */ 4145 struct fs_perm { 4146 const char *fsp_name; 4147 4148 uu_avl_t *fsp_sc_avl; /* sets,create */ 4149 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4150 4151 fs_perm_set_t *fsp_set; /* uplink */ 4152 }; 4153 4154 /* */ 4155 typedef struct fs_perm_node { 4156 fs_perm_t fspn_fsperm; 4157 uu_avl_t *fspn_avl; 4158 4159 uu_list_node_t fspn_list_node; 4160 } fs_perm_node_t; 4161 4162 /* top level structure */ 4163 struct fs_perm_set { 4164 uu_list_pool_t *fsps_list_pool; 4165 uu_list_t *fsps_list; /* list of fs_perms */ 4166 4167 uu_avl_pool_t *fsps_named_set_avl_pool; 4168 uu_avl_pool_t *fsps_who_perm_avl_pool; 4169 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4170 }; 4171 4172 static inline const char * 4173 deleg_perm_type(zfs_deleg_note_t note) 4174 { 4175 /* subcommands */ 4176 switch (note) { 4177 /* SUBCOMMANDS */ 4178 /* OTHER */ 4179 case ZFS_DELEG_NOTE_GROUPQUOTA: 4180 case ZFS_DELEG_NOTE_GROUPUSED: 4181 case ZFS_DELEG_NOTE_USERPROP: 4182 case ZFS_DELEG_NOTE_USERQUOTA: 4183 case ZFS_DELEG_NOTE_USERUSED: 4184 /* other */ 4185 return (gettext("other")); 4186 default: 4187 return (gettext("subcommand")); 4188 } 4189 } 4190 4191 static int 4192 who_type2weight(zfs_deleg_who_type_t who_type) 4193 { 4194 int res; 4195 switch (who_type) { 4196 case ZFS_DELEG_NAMED_SET_SETS: 4197 case ZFS_DELEG_NAMED_SET: 4198 res = 0; 4199 break; 4200 case ZFS_DELEG_CREATE_SETS: 4201 case ZFS_DELEG_CREATE: 4202 res = 1; 4203 break; 4204 case ZFS_DELEG_USER_SETS: 4205 case ZFS_DELEG_USER: 4206 res = 2; 4207 break; 4208 case ZFS_DELEG_GROUP_SETS: 4209 case ZFS_DELEG_GROUP: 4210 res = 3; 4211 break; 4212 case ZFS_DELEG_EVERYONE_SETS: 4213 case ZFS_DELEG_EVERYONE: 4214 res = 4; 4215 break; 4216 default: 4217 res = -1; 4218 } 4219 4220 return (res); 4221 } 4222 4223 /* ARGSUSED */ 4224 static int 4225 who_perm_compare(const void *larg, const void *rarg, void *unused) 4226 { 4227 const who_perm_node_t *l = larg; 4228 const who_perm_node_t *r = rarg; 4229 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4230 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4231 int lweight = who_type2weight(ltype); 4232 int rweight = who_type2weight(rtype); 4233 int res = lweight - rweight; 4234 if (res == 0) 4235 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4236 ZFS_MAX_DELEG_NAME-1); 4237 4238 if (res == 0) 4239 return (0); 4240 if (res > 0) 4241 return (1); 4242 else 4243 return (-1); 4244 } 4245 4246 /* ARGSUSED */ 4247 static int 4248 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4249 { 4250 const deleg_perm_node_t *l = larg; 4251 const deleg_perm_node_t *r = rarg; 4252 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4253 ZFS_MAX_DELEG_NAME-1); 4254 4255 if (res == 0) 4256 return (0); 4257 4258 if (res > 0) 4259 return (1); 4260 else 4261 return (-1); 4262 } 4263 4264 static inline void 4265 fs_perm_set_init(fs_perm_set_t *fspset) 4266 { 4267 bzero(fspset, sizeof (fs_perm_set_t)); 4268 4269 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4270 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4271 NULL, UU_DEFAULT)) == NULL) 4272 nomem(); 4273 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4274 UU_DEFAULT)) == NULL) 4275 nomem(); 4276 4277 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4278 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4279 who_perm_node_t, who_avl_node), who_perm_compare, 4280 UU_DEFAULT)) == NULL) 4281 nomem(); 4282 4283 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4284 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4285 who_perm_node_t, who_avl_node), who_perm_compare, 4286 UU_DEFAULT)) == NULL) 4287 nomem(); 4288 4289 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4290 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4291 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4292 == NULL) 4293 nomem(); 4294 } 4295 4296 static inline void fs_perm_fini(fs_perm_t *); 4297 static inline void who_perm_fini(who_perm_t *); 4298 4299 static inline void 4300 fs_perm_set_fini(fs_perm_set_t *fspset) 4301 { 4302 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4303 4304 while (node != NULL) { 4305 fs_perm_node_t *next_node = 4306 uu_list_next(fspset->fsps_list, node); 4307 fs_perm_t *fsperm = &node->fspn_fsperm; 4308 fs_perm_fini(fsperm); 4309 uu_list_remove(fspset->fsps_list, node); 4310 free(node); 4311 node = next_node; 4312 } 4313 4314 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4315 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4316 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4317 } 4318 4319 static inline void 4320 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4321 const char *name) 4322 { 4323 deleg_perm->dp_who_type = type; 4324 deleg_perm->dp_name = name; 4325 } 4326 4327 static inline void 4328 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4329 zfs_deleg_who_type_t type, const char *name) 4330 { 4331 uu_avl_pool_t *pool; 4332 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4333 4334 bzero(who_perm, sizeof (who_perm_t)); 4335 4336 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4337 UU_DEFAULT)) == NULL) 4338 nomem(); 4339 4340 who_perm->who_type = type; 4341 who_perm->who_name = name; 4342 who_perm->who_fsperm = fsperm; 4343 } 4344 4345 static inline void 4346 who_perm_fini(who_perm_t *who_perm) 4347 { 4348 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4349 4350 while (node != NULL) { 4351 deleg_perm_node_t *next_node = 4352 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4353 4354 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4355 free(node); 4356 node = next_node; 4357 } 4358 4359 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4360 } 4361 4362 static inline void 4363 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4364 { 4365 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4366 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4367 4368 bzero(fsperm, sizeof (fs_perm_t)); 4369 4370 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4371 == NULL) 4372 nomem(); 4373 4374 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4375 == NULL) 4376 nomem(); 4377 4378 fsperm->fsp_set = fspset; 4379 fsperm->fsp_name = fsname; 4380 } 4381 4382 static inline void 4383 fs_perm_fini(fs_perm_t *fsperm) 4384 { 4385 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4386 while (node != NULL) { 4387 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4388 node); 4389 who_perm_t *who_perm = &node->who_perm; 4390 who_perm_fini(who_perm); 4391 uu_avl_remove(fsperm->fsp_sc_avl, node); 4392 free(node); 4393 node = next_node; 4394 } 4395 4396 node = uu_avl_first(fsperm->fsp_uge_avl); 4397 while (node != NULL) { 4398 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4399 node); 4400 who_perm_t *who_perm = &node->who_perm; 4401 who_perm_fini(who_perm); 4402 uu_avl_remove(fsperm->fsp_uge_avl, node); 4403 free(node); 4404 node = next_node; 4405 } 4406 4407 uu_avl_destroy(fsperm->fsp_sc_avl); 4408 uu_avl_destroy(fsperm->fsp_uge_avl); 4409 } 4410 4411 static void 4412 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4413 zfs_deleg_who_type_t who_type, const char *name, char locality) 4414 { 4415 uu_avl_index_t idx = 0; 4416 4417 deleg_perm_node_t *found_node = NULL; 4418 deleg_perm_t *deleg_perm = &node->dpn_perm; 4419 4420 deleg_perm_init(deleg_perm, who_type, name); 4421 4422 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4423 == NULL) 4424 uu_avl_insert(avl, node, idx); 4425 else { 4426 node = found_node; 4427 deleg_perm = &node->dpn_perm; 4428 } 4429 4430 4431 switch (locality) { 4432 case ZFS_DELEG_LOCAL: 4433 deleg_perm->dp_local = B_TRUE; 4434 break; 4435 case ZFS_DELEG_DESCENDENT: 4436 deleg_perm->dp_descend = B_TRUE; 4437 break; 4438 case ZFS_DELEG_NA: 4439 break; 4440 default: 4441 assert(B_FALSE); /* invalid locality */ 4442 } 4443 } 4444 4445 static inline int 4446 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4447 { 4448 nvpair_t *nvp = NULL; 4449 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4450 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4451 zfs_deleg_who_type_t who_type = who_perm->who_type; 4452 4453 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4454 const char *name = nvpair_name(nvp); 4455 data_type_t type = nvpair_type(nvp); 4456 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4457 deleg_perm_node_t *node = 4458 safe_malloc(sizeof (deleg_perm_node_t)); 4459 4460 assert(type == DATA_TYPE_BOOLEAN); 4461 4462 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4463 set_deleg_perm_node(avl, node, who_type, name, locality); 4464 } 4465 4466 return (0); 4467 } 4468 4469 static inline int 4470 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4471 { 4472 nvpair_t *nvp = NULL; 4473 fs_perm_set_t *fspset = fsperm->fsp_set; 4474 4475 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4476 nvlist_t *nvl2 = NULL; 4477 const char *name = nvpair_name(nvp); 4478 uu_avl_t *avl = NULL; 4479 uu_avl_pool_t *avl_pool = NULL; 4480 zfs_deleg_who_type_t perm_type = name[0]; 4481 char perm_locality = name[1]; 4482 const char *perm_name = name + 3; 4483 boolean_t is_set = B_TRUE; 4484 who_perm_t *who_perm = NULL; 4485 4486 assert('$' == name[2]); 4487 4488 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4489 return (-1); 4490 4491 switch (perm_type) { 4492 case ZFS_DELEG_CREATE: 4493 case ZFS_DELEG_CREATE_SETS: 4494 case ZFS_DELEG_NAMED_SET: 4495 case ZFS_DELEG_NAMED_SET_SETS: 4496 avl_pool = fspset->fsps_named_set_avl_pool; 4497 avl = fsperm->fsp_sc_avl; 4498 break; 4499 case ZFS_DELEG_USER: 4500 case ZFS_DELEG_USER_SETS: 4501 case ZFS_DELEG_GROUP: 4502 case ZFS_DELEG_GROUP_SETS: 4503 case ZFS_DELEG_EVERYONE: 4504 case ZFS_DELEG_EVERYONE_SETS: 4505 avl_pool = fspset->fsps_who_perm_avl_pool; 4506 avl = fsperm->fsp_uge_avl; 4507 break; 4508 4509 default: 4510 assert(!"unhandled zfs_deleg_who_type_t"); 4511 } 4512 4513 if (is_set) { 4514 who_perm_node_t *found_node = NULL; 4515 who_perm_node_t *node = safe_malloc( 4516 sizeof (who_perm_node_t)); 4517 who_perm = &node->who_perm; 4518 uu_avl_index_t idx = 0; 4519 4520 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4521 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4522 4523 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4524 == NULL) { 4525 if (avl == fsperm->fsp_uge_avl) { 4526 uid_t rid = 0; 4527 struct passwd *p = NULL; 4528 struct group *g = NULL; 4529 const char *nice_name = NULL; 4530 4531 switch (perm_type) { 4532 case ZFS_DELEG_USER_SETS: 4533 case ZFS_DELEG_USER: 4534 rid = atoi(perm_name); 4535 p = getpwuid(rid); 4536 if (p) 4537 nice_name = p->pw_name; 4538 break; 4539 case ZFS_DELEG_GROUP_SETS: 4540 case ZFS_DELEG_GROUP: 4541 rid = atoi(perm_name); 4542 g = getgrgid(rid); 4543 if (g) 4544 nice_name = g->gr_name; 4545 break; 4546 4547 default: 4548 break; 4549 } 4550 4551 if (nice_name != NULL) 4552 (void) strlcpy( 4553 node->who_perm.who_ug_name, 4554 nice_name, 256); 4555 } 4556 4557 uu_avl_insert(avl, node, idx); 4558 } else { 4559 node = found_node; 4560 who_perm = &node->who_perm; 4561 } 4562 } 4563 4564 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4565 } 4566 4567 return (0); 4568 } 4569 4570 static inline int 4571 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4572 { 4573 nvpair_t *nvp = NULL; 4574 uu_avl_index_t idx = 0; 4575 4576 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4577 nvlist_t *nvl2 = NULL; 4578 const char *fsname = nvpair_name(nvp); 4579 data_type_t type = nvpair_type(nvp); 4580 fs_perm_t *fsperm = NULL; 4581 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4582 if (node == NULL) 4583 nomem(); 4584 4585 fsperm = &node->fspn_fsperm; 4586 4587 assert(DATA_TYPE_NVLIST == type); 4588 4589 uu_list_node_init(node, &node->fspn_list_node, 4590 fspset->fsps_list_pool); 4591 4592 idx = uu_list_numnodes(fspset->fsps_list); 4593 fs_perm_init(fsperm, fspset, fsname); 4594 4595 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4596 return (-1); 4597 4598 (void) parse_fs_perm(fsperm, nvl2); 4599 4600 uu_list_insert(fspset->fsps_list, node, idx); 4601 } 4602 4603 return (0); 4604 } 4605 4606 static inline const char * 4607 deleg_perm_comment(zfs_deleg_note_t note) 4608 { 4609 const char *str = ""; 4610 4611 /* subcommands */ 4612 switch (note) { 4613 /* SUBCOMMANDS */ 4614 case ZFS_DELEG_NOTE_ALLOW: 4615 str = gettext("Must also have the permission that is being" 4616 "\n\t\t\t\tallowed"); 4617 break; 4618 case ZFS_DELEG_NOTE_CLONE: 4619 str = gettext("Must also have the 'create' ability and 'mount'" 4620 "\n\t\t\t\tability in the origin file system"); 4621 break; 4622 case ZFS_DELEG_NOTE_CREATE: 4623 str = gettext("Must also have the 'mount' ability"); 4624 break; 4625 case ZFS_DELEG_NOTE_DESTROY: 4626 str = gettext("Must also have the 'mount' ability"); 4627 break; 4628 case ZFS_DELEG_NOTE_DIFF: 4629 str = gettext("Allows lookup of paths within a dataset;" 4630 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4631 "\n\t\t\t\tin order to use zfs diff"); 4632 break; 4633 case ZFS_DELEG_NOTE_HOLD: 4634 str = gettext("Allows adding a user hold to a snapshot"); 4635 break; 4636 case ZFS_DELEG_NOTE_MOUNT: 4637 str = gettext("Allows mount/umount of ZFS datasets"); 4638 break; 4639 case ZFS_DELEG_NOTE_PROMOTE: 4640 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4641 " 'promote' ability in the origin file system"); 4642 break; 4643 case ZFS_DELEG_NOTE_RECEIVE: 4644 str = gettext("Must also have the 'mount' and 'create'" 4645 " ability"); 4646 break; 4647 case ZFS_DELEG_NOTE_RELEASE: 4648 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4649 "might destroy the snapshot"); 4650 break; 4651 case ZFS_DELEG_NOTE_RENAME: 4652 str = gettext("Must also have the 'mount' and 'create'" 4653 "\n\t\t\t\tability in the new parent"); 4654 break; 4655 case ZFS_DELEG_NOTE_ROLLBACK: 4656 str = gettext(""); 4657 break; 4658 case ZFS_DELEG_NOTE_SEND: 4659 str = gettext(""); 4660 break; 4661 case ZFS_DELEG_NOTE_SHARE: 4662 str = gettext("Allows sharing file systems over NFS or SMB" 4663 "\n\t\t\t\tprotocols"); 4664 break; 4665 case ZFS_DELEG_NOTE_SNAPSHOT: 4666 str = gettext(""); 4667 break; 4668 /* 4669 * case ZFS_DELEG_NOTE_VSCAN: 4670 * str = gettext(""); 4671 * break; 4672 */ 4673 /* OTHER */ 4674 case ZFS_DELEG_NOTE_GROUPQUOTA: 4675 str = gettext("Allows accessing any groupquota@... property"); 4676 break; 4677 case ZFS_DELEG_NOTE_GROUPUSED: 4678 str = gettext("Allows reading any groupused@... property"); 4679 break; 4680 case ZFS_DELEG_NOTE_USERPROP: 4681 str = gettext("Allows changing any user property"); 4682 break; 4683 case ZFS_DELEG_NOTE_USERQUOTA: 4684 str = gettext("Allows accessing any userquota@... property"); 4685 break; 4686 case ZFS_DELEG_NOTE_USERUSED: 4687 str = gettext("Allows reading any userused@... property"); 4688 break; 4689 /* other */ 4690 default: 4691 str = ""; 4692 } 4693 4694 return (str); 4695 } 4696 4697 struct allow_opts { 4698 boolean_t local; 4699 boolean_t descend; 4700 boolean_t user; 4701 boolean_t group; 4702 boolean_t everyone; 4703 boolean_t create; 4704 boolean_t set; 4705 boolean_t recursive; /* unallow only */ 4706 boolean_t prt_usage; 4707 4708 boolean_t prt_perms; 4709 char *who; 4710 char *perms; 4711 const char *dataset; 4712 }; 4713 4714 static inline int 4715 prop_cmp(const void *a, const void *b) 4716 { 4717 const char *str1 = *(const char **)a; 4718 const char *str2 = *(const char **)b; 4719 return (strcmp(str1, str2)); 4720 } 4721 4722 static void 4723 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4724 { 4725 const char *opt_desc[] = { 4726 "-h", gettext("show this help message and exit"), 4727 "-l", gettext("set permission locally"), 4728 "-d", gettext("set permission for descents"), 4729 "-u", gettext("set permission for user"), 4730 "-g", gettext("set permission for group"), 4731 "-e", gettext("set permission for everyone"), 4732 "-c", gettext("set create time permission"), 4733 "-s", gettext("define permission set"), 4734 /* unallow only */ 4735 "-r", gettext("remove permissions recursively"), 4736 }; 4737 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4738 size_t allow_size = unallow_size - 2; 4739 const char *props[ZFS_NUM_PROPS]; 4740 int i; 4741 size_t count = 0; 4742 FILE *fp = requested ? stdout : stderr; 4743 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4744 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4745 4746 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4747 HELP_ALLOW)); 4748 (void) fprintf(fp, gettext("Options:\n")); 4749 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4750 const char *opt = opt_desc[i++]; 4751 const char *optdsc = opt_desc[i]; 4752 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4753 } 4754 4755 (void) fprintf(fp, gettext("\nThe following permissions are " 4756 "supported:\n\n")); 4757 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4758 gettext("NOTES")); 4759 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4760 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4761 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4762 const char *perm_type = deleg_perm_type(perm_note); 4763 const char *perm_comment = deleg_perm_comment(perm_note); 4764 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4765 } 4766 4767 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4768 zprop_desc_t *pd = &pdtbl[i]; 4769 if (pd->pd_visible != B_TRUE) 4770 continue; 4771 4772 if (pd->pd_attr == PROP_READONLY) 4773 continue; 4774 4775 props[count++] = pd->pd_name; 4776 } 4777 props[count] = NULL; 4778 4779 qsort(props, count, sizeof (char *), prop_cmp); 4780 4781 for (i = 0; i < count; i++) 4782 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4783 4784 if (msg != NULL) 4785 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4786 4787 exit(requested ? 0 : 2); 4788 } 4789 4790 static inline const char * 4791 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4792 char **permsp) 4793 { 4794 if (un && argc == expected_argc - 1) 4795 *permsp = NULL; 4796 else if (argc == expected_argc) 4797 *permsp = argv[argc - 2]; 4798 else 4799 allow_usage(un, B_FALSE, 4800 gettext("wrong number of parameters\n")); 4801 4802 return (argv[argc - 1]); 4803 } 4804 4805 static void 4806 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4807 { 4808 int uge_sum = opts->user + opts->group + opts->everyone; 4809 int csuge_sum = opts->create + opts->set + uge_sum; 4810 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4811 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4812 4813 if (uge_sum > 1) 4814 allow_usage(un, B_FALSE, 4815 gettext("-u, -g, and -e are mutually exclusive\n")); 4816 4817 if (opts->prt_usage) { 4818 if (argc == 0 && all_sum == 0) 4819 allow_usage(un, B_TRUE, NULL); 4820 else 4821 usage(B_FALSE); 4822 } 4823 4824 if (opts->set) { 4825 if (csuge_sum > 1) 4826 allow_usage(un, B_FALSE, 4827 gettext("invalid options combined with -s\n")); 4828 4829 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4830 if (argv[0][0] != '@') 4831 allow_usage(un, B_FALSE, 4832 gettext("invalid set name: missing '@' prefix\n")); 4833 opts->who = argv[0]; 4834 } else if (opts->create) { 4835 if (ldcsuge_sum > 1) 4836 allow_usage(un, B_FALSE, 4837 gettext("invalid options combined with -c\n")); 4838 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4839 } else if (opts->everyone) { 4840 if (csuge_sum > 1) 4841 allow_usage(un, B_FALSE, 4842 gettext("invalid options combined with -e\n")); 4843 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4844 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4845 == 0) { 4846 opts->everyone = B_TRUE; 4847 argc--; 4848 argv++; 4849 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4850 } else if (argc == 1 && !un) { 4851 opts->prt_perms = B_TRUE; 4852 opts->dataset = argv[argc-1]; 4853 } else { 4854 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4855 opts->who = argv[0]; 4856 } 4857 4858 if (!opts->local && !opts->descend) { 4859 opts->local = B_TRUE; 4860 opts->descend = B_TRUE; 4861 } 4862 } 4863 4864 static void 4865 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4866 const char *who, char *perms, nvlist_t *top_nvl) 4867 { 4868 int i; 4869 char ld[2] = { '\0', '\0' }; 4870 char who_buf[ZFS_MAXNAMELEN+32]; 4871 char base_type = '\0'; 4872 char set_type = '\0'; 4873 nvlist_t *base_nvl = NULL; 4874 nvlist_t *set_nvl = NULL; 4875 nvlist_t *nvl; 4876 4877 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4878 nomem(); 4879 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4880 nomem(); 4881 4882 switch (type) { 4883 case ZFS_DELEG_NAMED_SET_SETS: 4884 case ZFS_DELEG_NAMED_SET: 4885 set_type = ZFS_DELEG_NAMED_SET_SETS; 4886 base_type = ZFS_DELEG_NAMED_SET; 4887 ld[0] = ZFS_DELEG_NA; 4888 break; 4889 case ZFS_DELEG_CREATE_SETS: 4890 case ZFS_DELEG_CREATE: 4891 set_type = ZFS_DELEG_CREATE_SETS; 4892 base_type = ZFS_DELEG_CREATE; 4893 ld[0] = ZFS_DELEG_NA; 4894 break; 4895 case ZFS_DELEG_USER_SETS: 4896 case ZFS_DELEG_USER: 4897 set_type = ZFS_DELEG_USER_SETS; 4898 base_type = ZFS_DELEG_USER; 4899 if (local) 4900 ld[0] = ZFS_DELEG_LOCAL; 4901 if (descend) 4902 ld[1] = ZFS_DELEG_DESCENDENT; 4903 break; 4904 case ZFS_DELEG_GROUP_SETS: 4905 case ZFS_DELEG_GROUP: 4906 set_type = ZFS_DELEG_GROUP_SETS; 4907 base_type = ZFS_DELEG_GROUP; 4908 if (local) 4909 ld[0] = ZFS_DELEG_LOCAL; 4910 if (descend) 4911 ld[1] = ZFS_DELEG_DESCENDENT; 4912 break; 4913 case ZFS_DELEG_EVERYONE_SETS: 4914 case ZFS_DELEG_EVERYONE: 4915 set_type = ZFS_DELEG_EVERYONE_SETS; 4916 base_type = ZFS_DELEG_EVERYONE; 4917 if (local) 4918 ld[0] = ZFS_DELEG_LOCAL; 4919 if (descend) 4920 ld[1] = ZFS_DELEG_DESCENDENT; 4921 break; 4922 4923 default: 4924 assert(set_type != '\0' && base_type != '\0'); 4925 } 4926 4927 if (perms != NULL) { 4928 char *curr = perms; 4929 char *end = curr + strlen(perms); 4930 4931 while (curr < end) { 4932 char *delim = strchr(curr, ','); 4933 if (delim == NULL) 4934 delim = end; 4935 else 4936 *delim = '\0'; 4937 4938 if (curr[0] == '@') 4939 nvl = set_nvl; 4940 else 4941 nvl = base_nvl; 4942 4943 (void) nvlist_add_boolean(nvl, curr); 4944 if (delim != end) 4945 *delim = ','; 4946 curr = delim + 1; 4947 } 4948 4949 for (i = 0; i < 2; i++) { 4950 char locality = ld[i]; 4951 if (locality == 0) 4952 continue; 4953 4954 if (!nvlist_empty(base_nvl)) { 4955 if (who != NULL) 4956 (void) snprintf(who_buf, 4957 sizeof (who_buf), "%c%c$%s", 4958 base_type, locality, who); 4959 else 4960 (void) snprintf(who_buf, 4961 sizeof (who_buf), "%c%c$", 4962 base_type, locality); 4963 4964 (void) nvlist_add_nvlist(top_nvl, who_buf, 4965 base_nvl); 4966 } 4967 4968 4969 if (!nvlist_empty(set_nvl)) { 4970 if (who != NULL) 4971 (void) snprintf(who_buf, 4972 sizeof (who_buf), "%c%c$%s", 4973 set_type, locality, who); 4974 else 4975 (void) snprintf(who_buf, 4976 sizeof (who_buf), "%c%c$", 4977 set_type, locality); 4978 4979 (void) nvlist_add_nvlist(top_nvl, who_buf, 4980 set_nvl); 4981 } 4982 } 4983 } else { 4984 for (i = 0; i < 2; i++) { 4985 char locality = ld[i]; 4986 if (locality == 0) 4987 continue; 4988 4989 if (who != NULL) 4990 (void) snprintf(who_buf, sizeof (who_buf), 4991 "%c%c$%s", base_type, locality, who); 4992 else 4993 (void) snprintf(who_buf, sizeof (who_buf), 4994 "%c%c$", base_type, locality); 4995 (void) nvlist_add_boolean(top_nvl, who_buf); 4996 4997 if (who != NULL) 4998 (void) snprintf(who_buf, sizeof (who_buf), 4999 "%c%c$%s", set_type, locality, who); 5000 else 5001 (void) snprintf(who_buf, sizeof (who_buf), 5002 "%c%c$", set_type, locality); 5003 (void) nvlist_add_boolean(top_nvl, who_buf); 5004 } 5005 } 5006 } 5007 5008 static int 5009 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5010 { 5011 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5012 nomem(); 5013 5014 if (opts->set) { 5015 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5016 opts->descend, opts->who, opts->perms, *nvlp); 5017 } else if (opts->create) { 5018 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5019 opts->descend, NULL, opts->perms, *nvlp); 5020 } else if (opts->everyone) { 5021 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5022 opts->descend, NULL, opts->perms, *nvlp); 5023 } else { 5024 char *curr = opts->who; 5025 char *end = curr + strlen(curr); 5026 5027 while (curr < end) { 5028 const char *who; 5029 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5030 char *endch; 5031 char *delim = strchr(curr, ','); 5032 char errbuf[256]; 5033 char id[64]; 5034 struct passwd *p = NULL; 5035 struct group *g = NULL; 5036 5037 uid_t rid; 5038 if (delim == NULL) 5039 delim = end; 5040 else 5041 *delim = '\0'; 5042 5043 rid = (uid_t)strtol(curr, &endch, 0); 5044 if (opts->user) { 5045 who_type = ZFS_DELEG_USER; 5046 if (*endch != '\0') 5047 p = getpwnam(curr); 5048 else 5049 p = getpwuid(rid); 5050 5051 if (p != NULL) 5052 rid = p->pw_uid; 5053 else { 5054 (void) snprintf(errbuf, 256, gettext( 5055 "invalid user %s"), curr); 5056 allow_usage(un, B_TRUE, errbuf); 5057 } 5058 } else if (opts->group) { 5059 who_type = ZFS_DELEG_GROUP; 5060 if (*endch != '\0') 5061 g = getgrnam(curr); 5062 else 5063 g = getgrgid(rid); 5064 5065 if (g != NULL) 5066 rid = g->gr_gid; 5067 else { 5068 (void) snprintf(errbuf, 256, gettext( 5069 "invalid group %s"), curr); 5070 allow_usage(un, B_TRUE, errbuf); 5071 } 5072 } else { 5073 if (*endch != '\0') { 5074 p = getpwnam(curr); 5075 } else { 5076 p = getpwuid(rid); 5077 } 5078 5079 if (p == NULL) { 5080 if (*endch != '\0') { 5081 g = getgrnam(curr); 5082 } else { 5083 g = getgrgid(rid); 5084 } 5085 } 5086 5087 if (p != NULL) { 5088 who_type = ZFS_DELEG_USER; 5089 rid = p->pw_uid; 5090 } else if (g != NULL) { 5091 who_type = ZFS_DELEG_GROUP; 5092 rid = g->gr_gid; 5093 } else { 5094 (void) snprintf(errbuf, 256, gettext( 5095 "invalid user/group %s"), curr); 5096 allow_usage(un, B_TRUE, errbuf); 5097 } 5098 } 5099 5100 (void) sprintf(id, "%u", rid); 5101 who = id; 5102 5103 store_allow_perm(who_type, opts->local, 5104 opts->descend, who, opts->perms, *nvlp); 5105 curr = delim + 1; 5106 } 5107 } 5108 5109 return (0); 5110 } 5111 5112 static void 5113 print_set_creat_perms(uu_avl_t *who_avl) 5114 { 5115 const char *sc_title[] = { 5116 gettext("Permission sets:\n"), 5117 gettext("Create time permissions:\n"), 5118 NULL 5119 }; 5120 const char **title_ptr = sc_title; 5121 who_perm_node_t *who_node = NULL; 5122 int prev_weight = -1; 5123 5124 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5125 who_node = uu_avl_next(who_avl, who_node)) { 5126 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5127 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5128 const char *who_name = who_node->who_perm.who_name; 5129 int weight = who_type2weight(who_type); 5130 boolean_t first = B_TRUE; 5131 deleg_perm_node_t *deleg_node; 5132 5133 if (prev_weight != weight) { 5134 (void) printf(*title_ptr++); 5135 prev_weight = weight; 5136 } 5137 5138 if (who_name == NULL || strnlen(who_name, 1) == 0) 5139 (void) printf("\t"); 5140 else 5141 (void) printf("\t%s ", who_name); 5142 5143 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5144 deleg_node = uu_avl_next(avl, deleg_node)) { 5145 if (first) { 5146 (void) printf("%s", 5147 deleg_node->dpn_perm.dp_name); 5148 first = B_FALSE; 5149 } else 5150 (void) printf(",%s", 5151 deleg_node->dpn_perm.dp_name); 5152 } 5153 5154 (void) printf("\n"); 5155 } 5156 } 5157 5158 static void 5159 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5160 const char *title) 5161 { 5162 who_perm_node_t *who_node = NULL; 5163 boolean_t prt_title = B_TRUE; 5164 uu_avl_walk_t *walk; 5165 5166 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5167 nomem(); 5168 5169 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5170 const char *who_name = who_node->who_perm.who_name; 5171 const char *nice_who_name = who_node->who_perm.who_ug_name; 5172 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5173 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5174 char delim = ' '; 5175 deleg_perm_node_t *deleg_node; 5176 boolean_t prt_who = B_TRUE; 5177 5178 for (deleg_node = uu_avl_first(avl); 5179 deleg_node != NULL; 5180 deleg_node = uu_avl_next(avl, deleg_node)) { 5181 if (local != deleg_node->dpn_perm.dp_local || 5182 descend != deleg_node->dpn_perm.dp_descend) 5183 continue; 5184 5185 if (prt_who) { 5186 const char *who = NULL; 5187 if (prt_title) { 5188 prt_title = B_FALSE; 5189 (void) printf(title); 5190 } 5191 5192 switch (who_type) { 5193 case ZFS_DELEG_USER_SETS: 5194 case ZFS_DELEG_USER: 5195 who = gettext("user"); 5196 if (nice_who_name) 5197 who_name = nice_who_name; 5198 break; 5199 case ZFS_DELEG_GROUP_SETS: 5200 case ZFS_DELEG_GROUP: 5201 who = gettext("group"); 5202 if (nice_who_name) 5203 who_name = nice_who_name; 5204 break; 5205 case ZFS_DELEG_EVERYONE_SETS: 5206 case ZFS_DELEG_EVERYONE: 5207 who = gettext("everyone"); 5208 who_name = NULL; 5209 break; 5210 5211 default: 5212 assert(who != NULL); 5213 } 5214 5215 prt_who = B_FALSE; 5216 if (who_name == NULL) 5217 (void) printf("\t%s", who); 5218 else 5219 (void) printf("\t%s %s", who, who_name); 5220 } 5221 5222 (void) printf("%c%s", delim, 5223 deleg_node->dpn_perm.dp_name); 5224 delim = ','; 5225 } 5226 5227 if (!prt_who) 5228 (void) printf("\n"); 5229 } 5230 5231 uu_avl_walk_end(walk); 5232 } 5233 5234 static void 5235 print_fs_perms(fs_perm_set_t *fspset) 5236 { 5237 fs_perm_node_t *node = NULL; 5238 char buf[ZFS_MAXNAMELEN+32]; 5239 const char *dsname = buf; 5240 5241 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5242 node = uu_list_next(fspset->fsps_list, node)) { 5243 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5244 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5245 int left = 0; 5246 5247 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5248 gettext("---- Permissions on %s "), 5249 node->fspn_fsperm.fsp_name); 5250 (void) printf(dsname); 5251 left = 70 - strlen(buf); 5252 while (left-- > 0) 5253 (void) printf("-"); 5254 (void) printf("\n"); 5255 5256 print_set_creat_perms(sc_avl); 5257 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5258 gettext("Local permissions:\n")); 5259 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5260 gettext("Descendent permissions:\n")); 5261 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5262 gettext("Local+Descendent permissions:\n")); 5263 } 5264 } 5265 5266 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5267 5268 struct deleg_perms { 5269 boolean_t un; 5270 nvlist_t *nvl; 5271 }; 5272 5273 static int 5274 set_deleg_perms(zfs_handle_t *zhp, void *data) 5275 { 5276 struct deleg_perms *perms = (struct deleg_perms *)data; 5277 zfs_type_t zfs_type = zfs_get_type(zhp); 5278 5279 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5280 return (0); 5281 5282 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5283 } 5284 5285 static int 5286 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5287 { 5288 zfs_handle_t *zhp; 5289 nvlist_t *perm_nvl = NULL; 5290 nvlist_t *update_perm_nvl = NULL; 5291 int error = 1; 5292 int c; 5293 struct allow_opts opts = { 0 }; 5294 5295 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5296 5297 /* check opts */ 5298 while ((c = getopt(argc, argv, optstr)) != -1) { 5299 switch (c) { 5300 case 'l': 5301 opts.local = B_TRUE; 5302 break; 5303 case 'd': 5304 opts.descend = B_TRUE; 5305 break; 5306 case 'u': 5307 opts.user = B_TRUE; 5308 break; 5309 case 'g': 5310 opts.group = B_TRUE; 5311 break; 5312 case 'e': 5313 opts.everyone = B_TRUE; 5314 break; 5315 case 's': 5316 opts.set = B_TRUE; 5317 break; 5318 case 'c': 5319 opts.create = B_TRUE; 5320 break; 5321 case 'r': 5322 opts.recursive = B_TRUE; 5323 break; 5324 case ':': 5325 (void) fprintf(stderr, gettext("missing argument for " 5326 "'%c' option\n"), optopt); 5327 usage(B_FALSE); 5328 break; 5329 case 'h': 5330 opts.prt_usage = B_TRUE; 5331 break; 5332 case '?': 5333 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5334 optopt); 5335 usage(B_FALSE); 5336 } 5337 } 5338 5339 argc -= optind; 5340 argv += optind; 5341 5342 /* check arguments */ 5343 parse_allow_args(argc, argv, un, &opts); 5344 5345 /* try to open the dataset */ 5346 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5347 ZFS_TYPE_VOLUME)) == NULL) { 5348 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5349 opts.dataset); 5350 return (-1); 5351 } 5352 5353 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5354 goto cleanup2; 5355 5356 fs_perm_set_init(&fs_perm_set); 5357 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5358 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5359 goto cleanup1; 5360 } 5361 5362 if (opts.prt_perms) 5363 print_fs_perms(&fs_perm_set); 5364 else { 5365 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5366 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5367 goto cleanup0; 5368 5369 if (un && opts.recursive) { 5370 struct deleg_perms data = { un, update_perm_nvl }; 5371 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5372 &data) != 0) 5373 goto cleanup0; 5374 } 5375 } 5376 5377 error = 0; 5378 5379 cleanup0: 5380 nvlist_free(perm_nvl); 5381 nvlist_free(update_perm_nvl); 5382 cleanup1: 5383 fs_perm_set_fini(&fs_perm_set); 5384 cleanup2: 5385 zfs_close(zhp); 5386 5387 return (error); 5388 } 5389 5390 static int 5391 zfs_do_allow(int argc, char **argv) 5392 { 5393 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5394 } 5395 5396 static int 5397 zfs_do_unallow(int argc, char **argv) 5398 { 5399 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5400 } 5401 5402 static int 5403 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5404 { 5405 int errors = 0; 5406 int i; 5407 const char *tag; 5408 boolean_t recursive = B_FALSE; 5409 const char *opts = holding ? "rt" : "r"; 5410 int c; 5411 5412 /* check options */ 5413 while ((c = getopt(argc, argv, opts)) != -1) { 5414 switch (c) { 5415 case 'r': 5416 recursive = B_TRUE; 5417 break; 5418 case '?': 5419 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5420 optopt); 5421 usage(B_FALSE); 5422 } 5423 } 5424 5425 argc -= optind; 5426 argv += optind; 5427 5428 /* check number of arguments */ 5429 if (argc < 2) 5430 usage(B_FALSE); 5431 5432 tag = argv[0]; 5433 --argc; 5434 ++argv; 5435 5436 if (holding && tag[0] == '.') { 5437 /* tags starting with '.' are reserved for libzfs */ 5438 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5439 usage(B_FALSE); 5440 } 5441 5442 for (i = 0; i < argc; ++i) { 5443 zfs_handle_t *zhp; 5444 char parent[ZFS_MAXNAMELEN]; 5445 const char *delim; 5446 char *path = argv[i]; 5447 5448 delim = strchr(path, '@'); 5449 if (delim == NULL) { 5450 (void) fprintf(stderr, 5451 gettext("'%s' is not a snapshot\n"), path); 5452 ++errors; 5453 continue; 5454 } 5455 (void) strncpy(parent, path, delim - path); 5456 parent[delim - path] = '\0'; 5457 5458 zhp = zfs_open(g_zfs, parent, 5459 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5460 if (zhp == NULL) { 5461 ++errors; 5462 continue; 5463 } 5464 if (holding) { 5465 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5466 ++errors; 5467 } else { 5468 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5469 ++errors; 5470 } 5471 zfs_close(zhp); 5472 } 5473 5474 return (errors != 0); 5475 } 5476 5477 /* 5478 * zfs hold [-r] [-t] <tag> <snap> ... 5479 * 5480 * -r Recursively hold 5481 * 5482 * Apply a user-hold with the given tag to the list of snapshots. 5483 */ 5484 static int 5485 zfs_do_hold(int argc, char **argv) 5486 { 5487 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5488 } 5489 5490 /* 5491 * zfs release [-r] <tag> <snap> ... 5492 * 5493 * -r Recursively release 5494 * 5495 * Release a user-hold with the given tag from the list of snapshots. 5496 */ 5497 static int 5498 zfs_do_release(int argc, char **argv) 5499 { 5500 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5501 } 5502 5503 typedef struct holds_cbdata { 5504 boolean_t cb_recursive; 5505 const char *cb_snapname; 5506 nvlist_t **cb_nvlp; 5507 size_t cb_max_namelen; 5508 size_t cb_max_taglen; 5509 } holds_cbdata_t; 5510 5511 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5512 #define DATETIME_BUF_LEN (32) 5513 /* 5514 * 5515 */ 5516 static void 5517 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5518 { 5519 int i; 5520 nvpair_t *nvp = NULL; 5521 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5522 const char *col; 5523 5524 if (!scripted) { 5525 for (i = 0; i < 3; i++) { 5526 col = gettext(hdr_cols[i]); 5527 if (i < 2) 5528 (void) printf("%-*s ", i ? tagwidth : nwidth, 5529 col); 5530 else 5531 (void) printf("%s\n", col); 5532 } 5533 } 5534 5535 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5536 char *zname = nvpair_name(nvp); 5537 nvlist_t *nvl2; 5538 nvpair_t *nvp2 = NULL; 5539 (void) nvpair_value_nvlist(nvp, &nvl2); 5540 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5541 char tsbuf[DATETIME_BUF_LEN]; 5542 char *tagname = nvpair_name(nvp2); 5543 uint64_t val = 0; 5544 time_t time; 5545 struct tm t; 5546 char sep = scripted ? '\t' : ' '; 5547 size_t sepnum = scripted ? 1 : 2; 5548 5549 (void) nvpair_value_uint64(nvp2, &val); 5550 time = (time_t)val; 5551 (void) localtime_r(&time, &t); 5552 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5553 gettext(STRFTIME_FMT_STR), &t); 5554 5555 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5556 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5557 } 5558 } 5559 } 5560 5561 /* 5562 * Generic callback function to list a dataset or snapshot. 5563 */ 5564 static int 5565 holds_callback(zfs_handle_t *zhp, void *data) 5566 { 5567 holds_cbdata_t *cbp = data; 5568 nvlist_t *top_nvl = *cbp->cb_nvlp; 5569 nvlist_t *nvl = NULL; 5570 nvpair_t *nvp = NULL; 5571 const char *zname = zfs_get_name(zhp); 5572 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5573 5574 if (cbp->cb_recursive) { 5575 const char *snapname; 5576 char *delim = strchr(zname, '@'); 5577 if (delim == NULL) 5578 return (0); 5579 5580 snapname = delim + 1; 5581 if (strcmp(cbp->cb_snapname, snapname)) 5582 return (0); 5583 } 5584 5585 if (zfs_get_holds(zhp, &nvl) != 0) 5586 return (-1); 5587 5588 if (znamelen > cbp->cb_max_namelen) 5589 cbp->cb_max_namelen = znamelen; 5590 5591 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5592 const char *tag = nvpair_name(nvp); 5593 size_t taglen = strnlen(tag, MAXNAMELEN); 5594 if (taglen > cbp->cb_max_taglen) 5595 cbp->cb_max_taglen = taglen; 5596 } 5597 5598 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5599 } 5600 5601 /* 5602 * zfs holds [-r] <snap> ... 5603 * 5604 * -r Recursively hold 5605 */ 5606 static int 5607 zfs_do_holds(int argc, char **argv) 5608 { 5609 int errors = 0; 5610 int c; 5611 int i; 5612 boolean_t scripted = B_FALSE; 5613 boolean_t recursive = B_FALSE; 5614 const char *opts = "rH"; 5615 nvlist_t *nvl; 5616 5617 int types = ZFS_TYPE_SNAPSHOT; 5618 holds_cbdata_t cb = { 0 }; 5619 5620 int limit = 0; 5621 int ret = 0; 5622 int flags = 0; 5623 5624 /* check options */ 5625 while ((c = getopt(argc, argv, opts)) != -1) { 5626 switch (c) { 5627 case 'r': 5628 recursive = B_TRUE; 5629 break; 5630 case 'H': 5631 scripted = B_TRUE; 5632 break; 5633 case '?': 5634 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5635 optopt); 5636 usage(B_FALSE); 5637 } 5638 } 5639 5640 if (recursive) { 5641 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5642 flags |= ZFS_ITER_RECURSE; 5643 } 5644 5645 argc -= optind; 5646 argv += optind; 5647 5648 /* check number of arguments */ 5649 if (argc < 1) 5650 usage(B_FALSE); 5651 5652 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5653 nomem(); 5654 5655 for (i = 0; i < argc; ++i) { 5656 char *snapshot = argv[i]; 5657 const char *delim; 5658 const char *snapname; 5659 5660 delim = strchr(snapshot, '@'); 5661 if (delim == NULL) { 5662 (void) fprintf(stderr, 5663 gettext("'%s' is not a snapshot\n"), snapshot); 5664 ++errors; 5665 continue; 5666 } 5667 snapname = delim + 1; 5668 if (recursive) 5669 snapshot[delim - snapshot] = '\0'; 5670 5671 cb.cb_recursive = recursive; 5672 cb.cb_snapname = snapname; 5673 cb.cb_nvlp = &nvl; 5674 5675 /* 5676 * 1. collect holds data, set format options 5677 */ 5678 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5679 holds_callback, &cb); 5680 if (ret != 0) 5681 ++errors; 5682 } 5683 5684 /* 5685 * 2. print holds data 5686 */ 5687 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5688 5689 if (nvlist_empty(nvl)) 5690 (void) printf(gettext("no datasets available\n")); 5691 5692 nvlist_free(nvl); 5693 5694 return (0 != errors); 5695 } 5696 5697 #define CHECK_SPINNER 30 5698 #define SPINNER_TIME 3 /* seconds */ 5699 #define MOUNT_TIME 5 /* seconds */ 5700 5701 static int 5702 get_one_dataset(zfs_handle_t *zhp, void *data) 5703 { 5704 static char *spin[] = { "-", "\\", "|", "/" }; 5705 static int spinval = 0; 5706 static int spincheck = 0; 5707 static time_t last_spin_time = (time_t)0; 5708 get_all_cb_t *cbp = data; 5709 zfs_type_t type = zfs_get_type(zhp); 5710 5711 if (cbp->cb_verbose) { 5712 if (--spincheck < 0) { 5713 time_t now = time(NULL); 5714 if (last_spin_time + SPINNER_TIME < now) { 5715 update_progress(spin[spinval++ % 4]); 5716 last_spin_time = now; 5717 } 5718 spincheck = CHECK_SPINNER; 5719 } 5720 } 5721 5722 /* 5723 * Interate over any nested datasets. 5724 */ 5725 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5726 zfs_close(zhp); 5727 return (1); 5728 } 5729 5730 /* 5731 * Skip any datasets whose type does not match. 5732 */ 5733 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5734 zfs_close(zhp); 5735 return (0); 5736 } 5737 libzfs_add_handle(cbp, zhp); 5738 assert(cbp->cb_used <= cbp->cb_alloc); 5739 5740 return (0); 5741 } 5742 5743 static void 5744 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5745 { 5746 get_all_cb_t cb = { 0 }; 5747 cb.cb_verbose = verbose; 5748 cb.cb_getone = get_one_dataset; 5749 5750 if (verbose) 5751 set_progress_header(gettext("Reading ZFS config")); 5752 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5753 5754 *dslist = cb.cb_handles; 5755 *count = cb.cb_used; 5756 5757 if (verbose) 5758 finish_progress(gettext("done.")); 5759 } 5760 5761 /* 5762 * Generic callback for sharing or mounting filesystems. Because the code is so 5763 * similar, we have a common function with an extra parameter to determine which 5764 * mode we are using. 5765 */ 5766 #define OP_SHARE 0x1 5767 #define OP_MOUNT 0x2 5768 5769 /* 5770 * Share or mount a dataset. 5771 */ 5772 static int 5773 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5774 boolean_t explicit, const char *options) 5775 { 5776 char mountpoint[ZFS_MAXPROPLEN]; 5777 char shareopts[ZFS_MAXPROPLEN]; 5778 char smbshareopts[ZFS_MAXPROPLEN]; 5779 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5780 struct mnttab mnt; 5781 uint64_t zoned, canmount; 5782 boolean_t shared_nfs, shared_smb; 5783 5784 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5785 5786 /* 5787 * Check to make sure we can mount/share this dataset. If we 5788 * are in the global zone and the filesystem is exported to a 5789 * local zone, or if we are in a local zone and the 5790 * filesystem is not exported, then it is an error. 5791 */ 5792 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5793 5794 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5795 if (!explicit) 5796 return (0); 5797 5798 (void) fprintf(stderr, gettext("cannot %s '%s': " 5799 "dataset is exported to a local zone\n"), cmdname, 5800 zfs_get_name(zhp)); 5801 return (1); 5802 5803 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5804 if (!explicit) 5805 return (0); 5806 5807 (void) fprintf(stderr, gettext("cannot %s '%s': " 5808 "permission denied\n"), cmdname, 5809 zfs_get_name(zhp)); 5810 return (1); 5811 } 5812 5813 /* 5814 * Ignore any filesystems which don't apply to us. This 5815 * includes those with a legacy mountpoint, or those with 5816 * legacy share options. 5817 */ 5818 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5819 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5820 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5821 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5822 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5823 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5824 5825 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5826 strcmp(smbshareopts, "off") == 0) { 5827 if (!explicit) 5828 return (0); 5829 5830 (void) fprintf(stderr, gettext("cannot share '%s': " 5831 "legacy share\n"), zfs_get_name(zhp)); 5832 (void) fprintf(stderr, gettext("use share(1M) to " 5833 "share this filesystem, or set " 5834 "sharenfs property on\n")); 5835 return (1); 5836 } 5837 5838 /* 5839 * We cannot share or mount legacy filesystems. If the 5840 * shareopts is non-legacy but the mountpoint is legacy, we 5841 * treat it as a legacy share. 5842 */ 5843 if (strcmp(mountpoint, "legacy") == 0) { 5844 if (!explicit) 5845 return (0); 5846 5847 (void) fprintf(stderr, gettext("cannot %s '%s': " 5848 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5849 (void) fprintf(stderr, gettext("use %s(1M) to " 5850 "%s this filesystem\n"), cmdname, cmdname); 5851 return (1); 5852 } 5853 5854 if (strcmp(mountpoint, "none") == 0) { 5855 if (!explicit) 5856 return (0); 5857 5858 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5859 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5860 return (1); 5861 } 5862 5863 /* 5864 * canmount explicit outcome 5865 * on no pass through 5866 * on yes pass through 5867 * off no return 0 5868 * off yes display error, return 1 5869 * noauto no return 0 5870 * noauto yes pass through 5871 */ 5872 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5873 if (canmount == ZFS_CANMOUNT_OFF) { 5874 if (!explicit) 5875 return (0); 5876 5877 (void) fprintf(stderr, gettext("cannot %s '%s': " 5878 "'canmount' property is set to 'off'\n"), cmdname, 5879 zfs_get_name(zhp)); 5880 return (1); 5881 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5882 return (0); 5883 } 5884 5885 /* 5886 * If this filesystem is inconsistent and has a receive resume 5887 * token, we can not mount it. 5888 */ 5889 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5890 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5891 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5892 if (!explicit) 5893 return (0); 5894 5895 (void) fprintf(stderr, gettext("cannot %s '%s': " 5896 "Contains partially-completed state from " 5897 "\"zfs receive -r\", which can be resumed with " 5898 "\"zfs send -t\"\n"), 5899 cmdname, zfs_get_name(zhp)); 5900 return (1); 5901 } 5902 5903 /* 5904 * At this point, we have verified that the mountpoint and/or 5905 * shareopts are appropriate for auto management. If the 5906 * filesystem is already mounted or shared, return (failing 5907 * for explicit requests); otherwise mount or share the 5908 * filesystem. 5909 */ 5910 switch (op) { 5911 case OP_SHARE: 5912 5913 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5914 shared_smb = zfs_is_shared_smb(zhp, NULL); 5915 5916 if ((shared_nfs && shared_smb) || 5917 (shared_nfs && strcmp(shareopts, "on") == 0 && 5918 strcmp(smbshareopts, "off") == 0) || 5919 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5920 strcmp(shareopts, "off") == 0)) { 5921 if (!explicit) 5922 return (0); 5923 5924 (void) fprintf(stderr, gettext("cannot share " 5925 "'%s': filesystem already shared\n"), 5926 zfs_get_name(zhp)); 5927 return (1); 5928 } 5929 5930 if (!zfs_is_mounted(zhp, NULL) && 5931 zfs_mount(zhp, NULL, 0) != 0) 5932 return (1); 5933 5934 if (protocol == NULL) { 5935 if (zfs_shareall(zhp) != 0) 5936 return (1); 5937 } else if (strcmp(protocol, "nfs") == 0) { 5938 if (zfs_share_nfs(zhp)) 5939 return (1); 5940 } else if (strcmp(protocol, "smb") == 0) { 5941 if (zfs_share_smb(zhp)) 5942 return (1); 5943 } else { 5944 (void) fprintf(stderr, gettext("cannot share " 5945 "'%s': invalid share type '%s' " 5946 "specified\n"), 5947 zfs_get_name(zhp), protocol); 5948 return (1); 5949 } 5950 5951 break; 5952 5953 case OP_MOUNT: 5954 if (options == NULL) 5955 mnt.mnt_mntopts = ""; 5956 else 5957 mnt.mnt_mntopts = (char *)options; 5958 5959 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5960 zfs_is_mounted(zhp, NULL)) { 5961 if (!explicit) 5962 return (0); 5963 5964 (void) fprintf(stderr, gettext("cannot mount " 5965 "'%s': filesystem already mounted\n"), 5966 zfs_get_name(zhp)); 5967 return (1); 5968 } 5969 5970 if (zfs_mount(zhp, options, flags) != 0) 5971 return (1); 5972 break; 5973 } 5974 5975 return (0); 5976 } 5977 5978 /* 5979 * Reports progress in the form "(current/total)". Not thread-safe. 5980 */ 5981 static void 5982 report_mount_progress(int current, int total) 5983 { 5984 static time_t last_progress_time = 0; 5985 time_t now = time(NULL); 5986 char info[32]; 5987 5988 /* report 1..n instead of 0..n-1 */ 5989 ++current; 5990 5991 /* display header if we're here for the first time */ 5992 if (current == 1) { 5993 set_progress_header(gettext("Mounting ZFS filesystems")); 5994 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5995 /* too soon to report again */ 5996 return; 5997 } 5998 5999 last_progress_time = now; 6000 6001 (void) sprintf(info, "(%d/%d)", current, total); 6002 6003 if (current == total) 6004 finish_progress(info); 6005 else 6006 update_progress(info); 6007 } 6008 6009 static void 6010 append_options(char *mntopts, char *newopts) 6011 { 6012 int len = strlen(mntopts); 6013 6014 /* original length plus new string to append plus 1 for the comma */ 6015 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6016 (void) fprintf(stderr, gettext("the opts argument for " 6017 "'%c' option is too long (more than %d chars)\n"), 6018 "-o", MNT_LINE_MAX); 6019 usage(B_FALSE); 6020 } 6021 6022 if (*mntopts) 6023 mntopts[len++] = ','; 6024 6025 (void) strcpy(&mntopts[len], newopts); 6026 } 6027 6028 static int 6029 share_mount(int op, int argc, char **argv) 6030 { 6031 int do_all = 0; 6032 boolean_t verbose = B_FALSE; 6033 int c, ret = 0; 6034 char *options = NULL; 6035 int flags = 0; 6036 6037 /* check options */ 6038 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6039 != -1) { 6040 switch (c) { 6041 case 'a': 6042 do_all = 1; 6043 break; 6044 case 'v': 6045 verbose = B_TRUE; 6046 break; 6047 case 'o': 6048 if (*optarg == '\0') { 6049 (void) fprintf(stderr, gettext("empty mount " 6050 "options (-o) specified\n")); 6051 usage(B_FALSE); 6052 } 6053 6054 if (options == NULL) 6055 options = safe_malloc(MNT_LINE_MAX + 1); 6056 6057 /* option validation is done later */ 6058 append_options(options, optarg); 6059 break; 6060 6061 case 'O': 6062 flags |= MS_OVERLAY; 6063 break; 6064 case ':': 6065 (void) fprintf(stderr, gettext("missing argument for " 6066 "'%c' option\n"), optopt); 6067 usage(B_FALSE); 6068 break; 6069 case '?': 6070 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6071 optopt); 6072 usage(B_FALSE); 6073 } 6074 } 6075 6076 argc -= optind; 6077 argv += optind; 6078 6079 /* check number of arguments */ 6080 if (do_all) { 6081 zfs_handle_t **dslist = NULL; 6082 size_t i, count = 0; 6083 char *protocol = NULL; 6084 6085 if (op == OP_SHARE && argc > 0) { 6086 if (strcmp(argv[0], "nfs") != 0 && 6087 strcmp(argv[0], "smb") != 0) { 6088 (void) fprintf(stderr, gettext("share type " 6089 "must be 'nfs' or 'smb'\n")); 6090 usage(B_FALSE); 6091 } 6092 protocol = argv[0]; 6093 argc--; 6094 argv++; 6095 } 6096 6097 if (argc != 0) { 6098 (void) fprintf(stderr, gettext("too many arguments\n")); 6099 usage(B_FALSE); 6100 } 6101 6102 start_progress_timer(); 6103 get_all_datasets(&dslist, &count, verbose); 6104 6105 if (count == 0) 6106 return (0); 6107 6108 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6109 6110 for (i = 0; i < count; i++) { 6111 if (verbose) 6112 report_mount_progress(i, count); 6113 6114 if (share_mount_one(dslist[i], op, flags, protocol, 6115 B_FALSE, options) != 0) 6116 ret = 1; 6117 zfs_close(dslist[i]); 6118 } 6119 6120 free(dslist); 6121 } else if (argc == 0) { 6122 struct mnttab entry; 6123 6124 if ((op == OP_SHARE) || (options != NULL)) { 6125 (void) fprintf(stderr, gettext("missing filesystem " 6126 "argument (specify -a for all)\n")); 6127 usage(B_FALSE); 6128 } 6129 6130 /* 6131 * When mount is given no arguments, go through /etc/mnttab and 6132 * display any active ZFS mounts. We hide any snapshots, since 6133 * they are controlled automatically. 6134 */ 6135 rewind(mnttab_file); 6136 while (getmntent(mnttab_file, &entry) == 0) { 6137 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6138 strchr(entry.mnt_special, '@') != NULL) 6139 continue; 6140 6141 (void) printf("%-30s %s\n", entry.mnt_special, 6142 entry.mnt_mountp); 6143 } 6144 6145 } else { 6146 zfs_handle_t *zhp; 6147 6148 if (argc > 1) { 6149 (void) fprintf(stderr, 6150 gettext("too many arguments\n")); 6151 usage(B_FALSE); 6152 } 6153 6154 if ((zhp = zfs_open(g_zfs, argv[0], 6155 ZFS_TYPE_FILESYSTEM)) == NULL) { 6156 ret = 1; 6157 } else { 6158 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6159 options); 6160 zfs_close(zhp); 6161 } 6162 } 6163 6164 return (ret); 6165 } 6166 6167 /* 6168 * zfs mount -a [nfs] 6169 * zfs mount filesystem 6170 * 6171 * Mount all filesystems, or mount the given filesystem. 6172 */ 6173 static int 6174 zfs_do_mount(int argc, char **argv) 6175 { 6176 return (share_mount(OP_MOUNT, argc, argv)); 6177 } 6178 6179 /* 6180 * zfs share -a [nfs | smb] 6181 * zfs share filesystem 6182 * 6183 * Share all filesystems, or share the given filesystem. 6184 */ 6185 static int 6186 zfs_do_share(int argc, char **argv) 6187 { 6188 return (share_mount(OP_SHARE, argc, argv)); 6189 } 6190 6191 typedef struct unshare_unmount_node { 6192 zfs_handle_t *un_zhp; 6193 char *un_mountp; 6194 uu_avl_node_t un_avlnode; 6195 } unshare_unmount_node_t; 6196 6197 /* ARGSUSED */ 6198 static int 6199 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6200 { 6201 const unshare_unmount_node_t *l = larg; 6202 const unshare_unmount_node_t *r = rarg; 6203 6204 return (strcmp(l->un_mountp, r->un_mountp)); 6205 } 6206 6207 /* 6208 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6209 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6210 * and unmount it appropriately. 6211 */ 6212 static int 6213 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6214 { 6215 zfs_handle_t *zhp; 6216 int ret = 0; 6217 struct stat64 statbuf; 6218 struct extmnttab entry; 6219 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6220 ino_t path_inode; 6221 6222 /* 6223 * Search for the path in /etc/mnttab. Rather than looking for the 6224 * specific path, which can be fooled by non-standard paths (i.e. ".." 6225 * or "//"), we stat() the path and search for the corresponding 6226 * (major,minor) device pair. 6227 */ 6228 if (stat64(path, &statbuf) != 0) { 6229 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6230 cmdname, path, strerror(errno)); 6231 return (1); 6232 } 6233 path_inode = statbuf.st_ino; 6234 6235 /* 6236 * Search for the given (major,minor) pair in the mount table. 6237 */ 6238 rewind(mnttab_file); 6239 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6240 if (entry.mnt_major == major(statbuf.st_dev) && 6241 entry.mnt_minor == minor(statbuf.st_dev)) 6242 break; 6243 } 6244 if (ret != 0) { 6245 if (op == OP_SHARE) { 6246 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6247 "currently mounted\n"), cmdname, path); 6248 return (1); 6249 } 6250 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6251 path); 6252 if ((ret = umount2(path, flags)) != 0) 6253 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6254 strerror(errno)); 6255 return (ret != 0); 6256 } 6257 6258 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6259 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6260 "filesystem\n"), cmdname, path); 6261 return (1); 6262 } 6263 6264 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6265 ZFS_TYPE_FILESYSTEM)) == NULL) 6266 return (1); 6267 6268 ret = 1; 6269 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6270 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6271 cmdname, path, strerror(errno)); 6272 goto out; 6273 } else if (statbuf.st_ino != path_inode) { 6274 (void) fprintf(stderr, gettext("cannot " 6275 "%s '%s': not a mountpoint\n"), cmdname, path); 6276 goto out; 6277 } 6278 6279 if (op == OP_SHARE) { 6280 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6281 char smbshare_prop[ZFS_MAXPROPLEN]; 6282 6283 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6284 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6285 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6286 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6287 6288 if (strcmp(nfs_mnt_prop, "off") == 0 && 6289 strcmp(smbshare_prop, "off") == 0) { 6290 (void) fprintf(stderr, gettext("cannot unshare " 6291 "'%s': legacy share\n"), path); 6292 (void) fprintf(stderr, gettext("use " 6293 "unshare(1M) to unshare this filesystem\n")); 6294 } else if (!zfs_is_shared(zhp)) { 6295 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6296 "not currently shared\n"), path); 6297 } else { 6298 ret = zfs_unshareall_bypath(zhp, path); 6299 } 6300 } else { 6301 char mtpt_prop[ZFS_MAXPROPLEN]; 6302 6303 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6304 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6305 6306 if (is_manual) { 6307 ret = zfs_unmount(zhp, NULL, flags); 6308 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6309 (void) fprintf(stderr, gettext("cannot unmount " 6310 "'%s': legacy mountpoint\n"), 6311 zfs_get_name(zhp)); 6312 (void) fprintf(stderr, gettext("use umount(1M) " 6313 "to unmount this filesystem\n")); 6314 } else { 6315 ret = zfs_unmountall(zhp, flags); 6316 } 6317 } 6318 6319 out: 6320 zfs_close(zhp); 6321 6322 return (ret != 0); 6323 } 6324 6325 /* 6326 * Generic callback for unsharing or unmounting a filesystem. 6327 */ 6328 static int 6329 unshare_unmount(int op, int argc, char **argv) 6330 { 6331 int do_all = 0; 6332 int flags = 0; 6333 int ret = 0; 6334 int c; 6335 zfs_handle_t *zhp; 6336 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6337 char sharesmb[ZFS_MAXPROPLEN]; 6338 6339 /* check options */ 6340 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6341 switch (c) { 6342 case 'a': 6343 do_all = 1; 6344 break; 6345 case 'f': 6346 flags = MS_FORCE; 6347 break; 6348 case '?': 6349 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6350 optopt); 6351 usage(B_FALSE); 6352 } 6353 } 6354 6355 argc -= optind; 6356 argv += optind; 6357 6358 if (do_all) { 6359 /* 6360 * We could make use of zfs_for_each() to walk all datasets in 6361 * the system, but this would be very inefficient, especially 6362 * since we would have to linearly search /etc/mnttab for each 6363 * one. Instead, do one pass through /etc/mnttab looking for 6364 * zfs entries and call zfs_unmount() for each one. 6365 * 6366 * Things get a little tricky if the administrator has created 6367 * mountpoints beneath other ZFS filesystems. In this case, we 6368 * have to unmount the deepest filesystems first. To accomplish 6369 * this, we place all the mountpoints in an AVL tree sorted by 6370 * the special type (dataset name), and walk the result in 6371 * reverse to make sure to get any snapshots first. 6372 */ 6373 struct mnttab entry; 6374 uu_avl_pool_t *pool; 6375 uu_avl_t *tree = NULL; 6376 unshare_unmount_node_t *node; 6377 uu_avl_index_t idx; 6378 uu_avl_walk_t *walk; 6379 6380 if (argc != 0) { 6381 (void) fprintf(stderr, gettext("too many arguments\n")); 6382 usage(B_FALSE); 6383 } 6384 6385 if (((pool = uu_avl_pool_create("unmount_pool", 6386 sizeof (unshare_unmount_node_t), 6387 offsetof(unshare_unmount_node_t, un_avlnode), 6388 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6389 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6390 nomem(); 6391 6392 rewind(mnttab_file); 6393 while (getmntent(mnttab_file, &entry) == 0) { 6394 6395 /* ignore non-ZFS entries */ 6396 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6397 continue; 6398 6399 /* ignore snapshots */ 6400 if (strchr(entry.mnt_special, '@') != NULL) 6401 continue; 6402 6403 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6404 ZFS_TYPE_FILESYSTEM)) == NULL) { 6405 ret = 1; 6406 continue; 6407 } 6408 6409 /* 6410 * Ignore datasets that are excluded/restricted by 6411 * parent pool name. 6412 */ 6413 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6414 zfs_close(zhp); 6415 continue; 6416 } 6417 6418 switch (op) { 6419 case OP_SHARE: 6420 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6421 nfs_mnt_prop, 6422 sizeof (nfs_mnt_prop), 6423 NULL, NULL, 0, B_FALSE) == 0); 6424 if (strcmp(nfs_mnt_prop, "off") != 0) 6425 break; 6426 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6427 nfs_mnt_prop, 6428 sizeof (nfs_mnt_prop), 6429 NULL, NULL, 0, B_FALSE) == 0); 6430 if (strcmp(nfs_mnt_prop, "off") == 0) 6431 continue; 6432 break; 6433 case OP_MOUNT: 6434 /* Ignore legacy mounts */ 6435 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6436 nfs_mnt_prop, 6437 sizeof (nfs_mnt_prop), 6438 NULL, NULL, 0, B_FALSE) == 0); 6439 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6440 continue; 6441 /* Ignore canmount=noauto mounts */ 6442 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6443 ZFS_CANMOUNT_NOAUTO) 6444 continue; 6445 default: 6446 break; 6447 } 6448 6449 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6450 node->un_zhp = zhp; 6451 node->un_mountp = safe_strdup(entry.mnt_mountp); 6452 6453 uu_avl_node_init(node, &node->un_avlnode, pool); 6454 6455 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6456 uu_avl_insert(tree, node, idx); 6457 } else { 6458 zfs_close(node->un_zhp); 6459 free(node->un_mountp); 6460 free(node); 6461 } 6462 } 6463 6464 /* 6465 * Walk the AVL tree in reverse, unmounting each filesystem and 6466 * removing it from the AVL tree in the process. 6467 */ 6468 if ((walk = uu_avl_walk_start(tree, 6469 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6470 nomem(); 6471 6472 while ((node = uu_avl_walk_next(walk)) != NULL) { 6473 uu_avl_remove(tree, node); 6474 6475 switch (op) { 6476 case OP_SHARE: 6477 if (zfs_unshareall_bypath(node->un_zhp, 6478 node->un_mountp) != 0) 6479 ret = 1; 6480 break; 6481 6482 case OP_MOUNT: 6483 if (zfs_unmount(node->un_zhp, 6484 node->un_mountp, flags) != 0) 6485 ret = 1; 6486 break; 6487 } 6488 6489 zfs_close(node->un_zhp); 6490 free(node->un_mountp); 6491 free(node); 6492 } 6493 6494 uu_avl_walk_end(walk); 6495 uu_avl_destroy(tree); 6496 uu_avl_pool_destroy(pool); 6497 6498 } else { 6499 if (argc != 1) { 6500 if (argc == 0) 6501 (void) fprintf(stderr, 6502 gettext("missing filesystem argument\n")); 6503 else 6504 (void) fprintf(stderr, 6505 gettext("too many arguments\n")); 6506 usage(B_FALSE); 6507 } 6508 6509 /* 6510 * We have an argument, but it may be a full path or a ZFS 6511 * filesystem. Pass full paths off to unmount_path() (shared by 6512 * manual_unmount), otherwise open the filesystem and pass to 6513 * zfs_unmount(). 6514 */ 6515 if (argv[0][0] == '/') 6516 return (unshare_unmount_path(op, argv[0], 6517 flags, B_FALSE)); 6518 6519 if ((zhp = zfs_open(g_zfs, argv[0], 6520 ZFS_TYPE_FILESYSTEM)) == NULL) 6521 return (1); 6522 6523 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6524 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6525 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6526 NULL, 0, B_FALSE) == 0); 6527 6528 switch (op) { 6529 case OP_SHARE: 6530 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6531 nfs_mnt_prop, 6532 sizeof (nfs_mnt_prop), 6533 NULL, NULL, 0, B_FALSE) == 0); 6534 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6535 sharesmb, sizeof (sharesmb), NULL, NULL, 6536 0, B_FALSE) == 0); 6537 6538 if (strcmp(nfs_mnt_prop, "off") == 0 && 6539 strcmp(sharesmb, "off") == 0) { 6540 (void) fprintf(stderr, gettext("cannot " 6541 "unshare '%s': legacy share\n"), 6542 zfs_get_name(zhp)); 6543 (void) fprintf(stderr, gettext("use " 6544 "unshare(1M) to unshare this " 6545 "filesystem\n")); 6546 ret = 1; 6547 } else if (!zfs_is_shared(zhp)) { 6548 (void) fprintf(stderr, gettext("cannot " 6549 "unshare '%s': not currently " 6550 "shared\n"), zfs_get_name(zhp)); 6551 ret = 1; 6552 } else if (zfs_unshareall(zhp) != 0) { 6553 ret = 1; 6554 } 6555 break; 6556 6557 case OP_MOUNT: 6558 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6559 (void) fprintf(stderr, gettext("cannot " 6560 "unmount '%s': legacy " 6561 "mountpoint\n"), zfs_get_name(zhp)); 6562 (void) fprintf(stderr, gettext("use " 6563 "umount(1M) to unmount this " 6564 "filesystem\n")); 6565 ret = 1; 6566 } else if (!zfs_is_mounted(zhp, NULL)) { 6567 (void) fprintf(stderr, gettext("cannot " 6568 "unmount '%s': not currently " 6569 "mounted\n"), 6570 zfs_get_name(zhp)); 6571 ret = 1; 6572 } else if (zfs_unmountall(zhp, flags) != 0) { 6573 ret = 1; 6574 } 6575 break; 6576 } 6577 6578 zfs_close(zhp); 6579 } 6580 6581 return (ret); 6582 } 6583 6584 /* 6585 * zfs unmount -a 6586 * zfs unmount filesystem 6587 * 6588 * Unmount all filesystems, or a specific ZFS filesystem. 6589 */ 6590 static int 6591 zfs_do_unmount(int argc, char **argv) 6592 { 6593 return (unshare_unmount(OP_MOUNT, argc, argv)); 6594 } 6595 6596 /* 6597 * zfs unshare -a 6598 * zfs unshare filesystem 6599 * 6600 * Unshare all filesystems, or a specific ZFS filesystem. 6601 */ 6602 static int 6603 zfs_do_unshare(int argc, char **argv) 6604 { 6605 return (unshare_unmount(OP_SHARE, argc, argv)); 6606 } 6607 6608 /* 6609 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6610 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6611 */ 6612 static int 6613 manual_mount(int argc, char **argv) 6614 { 6615 zfs_handle_t *zhp; 6616 char mountpoint[ZFS_MAXPROPLEN]; 6617 char mntopts[MNT_LINE_MAX] = { '\0' }; 6618 int ret = 0; 6619 int c; 6620 int flags = 0; 6621 char *dataset, *path; 6622 6623 /* check options */ 6624 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6625 switch (c) { 6626 case 'o': 6627 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6628 break; 6629 case 'O': 6630 flags |= MS_OVERLAY; 6631 break; 6632 case 'm': 6633 flags |= MS_NOMNTTAB; 6634 break; 6635 case ':': 6636 (void) fprintf(stderr, gettext("missing argument for " 6637 "'%c' option\n"), optopt); 6638 usage(B_FALSE); 6639 break; 6640 case '?': 6641 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6642 optopt); 6643 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6644 "<path>\n")); 6645 return (2); 6646 } 6647 } 6648 6649 argc -= optind; 6650 argv += optind; 6651 6652 /* check that we only have two arguments */ 6653 if (argc != 2) { 6654 if (argc == 0) 6655 (void) fprintf(stderr, gettext("missing dataset " 6656 "argument\n")); 6657 else if (argc == 1) 6658 (void) fprintf(stderr, 6659 gettext("missing mountpoint argument\n")); 6660 else 6661 (void) fprintf(stderr, gettext("too many arguments\n")); 6662 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6663 return (2); 6664 } 6665 6666 dataset = argv[0]; 6667 path = argv[1]; 6668 6669 /* try to open the dataset */ 6670 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6671 return (1); 6672 6673 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6674 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6675 6676 /* check for legacy mountpoint and complain appropriately */ 6677 ret = 0; 6678 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6679 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6680 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6681 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6682 strerror(errno)); 6683 ret = 1; 6684 } 6685 } else { 6686 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6687 "mounted using 'mount -F zfs'\n"), dataset); 6688 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6689 "instead.\n"), path); 6690 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6691 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6692 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6693 "information.\n")); 6694 ret = 1; 6695 } 6696 6697 return (ret); 6698 } 6699 6700 /* 6701 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6702 * unmounts of non-legacy filesystems, as this is the dominant administrative 6703 * interface. 6704 */ 6705 static int 6706 manual_unmount(int argc, char **argv) 6707 { 6708 int flags = 0; 6709 int c; 6710 6711 /* check options */ 6712 while ((c = getopt(argc, argv, "f")) != -1) { 6713 switch (c) { 6714 case 'f': 6715 flags = MS_FORCE; 6716 break; 6717 case '?': 6718 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6719 optopt); 6720 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6721 "<path>\n")); 6722 return (2); 6723 } 6724 } 6725 6726 argc -= optind; 6727 argv += optind; 6728 6729 /* check arguments */ 6730 if (argc != 1) { 6731 if (argc == 0) 6732 (void) fprintf(stderr, gettext("missing path " 6733 "argument\n")); 6734 else 6735 (void) fprintf(stderr, gettext("too many arguments\n")); 6736 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6737 return (2); 6738 } 6739 6740 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6741 } 6742 6743 static int 6744 find_command_idx(char *command, int *idx) 6745 { 6746 int i; 6747 6748 for (i = 0; i < NCOMMAND; i++) { 6749 if (command_table[i].name == NULL) 6750 continue; 6751 6752 if (strcmp(command, command_table[i].name) == 0) { 6753 *idx = i; 6754 return (0); 6755 } 6756 } 6757 return (1); 6758 } 6759 6760 static inline char * 6761 get_rid_fs(const char *rid) 6762 { 6763 FILE *pool_file = NULL; 6764 char *fs = malloc(256); 6765 char *pool = fs; 6766 size_t len; 6767 int rid_len; 6768 6769 assert(fs); 6770 6771 if (!rid) { 6772 fprintf(stderr, "rzfs: no rid given for -r\n"); 6773 exit(1); 6774 } 6775 6776 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6777 fprintf(stderr, "rzfs: get_rid_fs: fopen for %s failed: %s\n", 6778 STG_POOL_FILE, strerror(errno)); 6779 exit(1); 6780 } 6781 6782 len = fread(pool, sizeof(char), 256, pool_file); 6783 if (len != POOL_NAME_LEN + 1) { 6784 fprintf(stderr, "rzfs: get_rid_fs: malformed pool in %s " 6785 "(len=%d)\n", STG_POOL_FILE, (int)len); 6786 exit(1); 6787 } 6788 fs[POOL_NAME_LEN] = 0; 6789 6790 rid_len = strlen(rid); 6791 sprintf(fs, "%s/%c%c/%s_root", pool, rid[rid_len - 2], 6792 rid[rid_len - 1], rid); 6793 fclose(pool_file); 6794 return fs; 6795 } 6796 6797 /* path: /mnt/abc.n/99/599999 */ 6798 static char * 6799 get_space_path(const char *rid) 6800 { 6801 FILE *pool_file = NULL; 6802 char *path = malloc(PATH_MAX + 1); 6803 char pool[POOL_NAME_LEN + 1]; 6804 size_t len; 6805 int rid_len; 6806 6807 assert(path); 6808 6809 if (!rid) { 6810 fprintf(stderr, "xlist: no rid given for -r\n"); 6811 exit(1); 6812 } 6813 if (strlen(rid) < 8) { 6814 fprintf(stderr, "invalid rid\n"); 6815 exit(1); 6816 } 6817 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6818 fprintf(stderr, "xlist: get_space_path: fopen for %s failed: " 6819 "%s\n", STG_POOL_FILE, strerror(errno)); 6820 exit(1); 6821 } 6822 len = fread(pool, sizeof(char), POOL_NAME_LEN + 1, pool_file); 6823 if (len != POOL_NAME_LEN + 1) { 6824 fprintf(stderr, "xlist: get_space_path: malformed pool in %s " 6825 "(len=%d)\n", STG_POOL_FILE, (int)len); 6826 exit(1); 6827 } 6828 pool[POOL_NAME_LEN] = 0; 6829 6830 rid_len = strlen(rid); 6831 sprintf(path, "/mnt/%s/%c%c/%s", pool, rid[rid_len - 2], 6832 rid[rid_len - 1], rid); 6833 6834 fclose(pool_file); 6835 return path; 6836 } 6837 6838 int 6839 xlist(zfs_handle_t *zfh, void *ctx) 6840 { 6841 int ret; 6842 6843 if (zfs_get_type(zfh) & dataset_type) 6844 printf("%s\n", zfs_get_name(zfh)); 6845 6846 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 6847 ret = zfs_iter_snapshots(zfh, xlist, ctx); 6848 if (ret) { 6849 fprintf(stderr, "xlist failed for %s: %s\n", 6850 zfs_get_name(zfh), 6851 libzfs_error_description(g_zfs)); 6852 exit(1); 6853 } 6854 } 6855 6856 ret = zfs_iter_filesystems(zfh, xlist, ctx); 6857 if (ret) { 6858 fprintf(stderr, "xlist failed for %s: %s\n", zfs_get_name(zfh), 6859 libzfs_error_description(g_zfs)); 6860 exit(1); 6861 } 6862 zfs_close(zfh); 6863 return (0); 6864 } 6865 6866 static int 6867 zfs_do_xlist(int argc, char **argv) 6868 { 6869 char *rootfs = NULL; 6870 char *path = NULL; 6871 dataset_type = ZFS_TYPE_FILESYSTEM; 6872 char c; 6873 6874 while ((c = getopt(argc, argv, "hasS:r:v")) != -1) { 6875 switch (c) { 6876 case 'h': /* help */ 6877 usage(B_TRUE); 6878 return 1; 6879 case 'a': /* print fs and snapshots */ 6880 dataset_type |= ZFS_TYPE_SNAPSHOT; 6881 break; 6882 case 'r': /* rid */ 6883 rootfs = get_rid_fs(optarg); 6884 break; 6885 case 's': /* print snapshots only */ 6886 dataset_type = ZFS_TYPE_SNAPSHOT; 6887 break; 6888 case 'S': 6889 path = get_space_path(optarg); 6890 printf("%s\n", path); 6891 exit(0); 6892 case 'v': 6893 fprintf(stderr, "xlist version %s\n", XVERSION); 6894 exit(0); 6895 default: 6896 (void) fprintf(stderr, 6897 gettext("invalid option '%c'\n"), optopt); 6898 usage(B_FALSE); 6899 } 6900 } 6901 6902 argc -= optind; 6903 argv += optind; 6904 6905 if (!rootfs) 6906 rootfs = *argv; 6907 6908 if (rootfs == NULL) { 6909 return zfs_iter_root(g_zfs, xlist, NULL); 6910 } else { 6911 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 6912 ZFS_TYPE_FILESYSTEM); 6913 if (!zfsh) { 6914 fprintf(stderr, "zfs_open failed for %s\n", 6915 rootfs); 6916 exit(1); 6917 } 6918 return xlist(zfsh, NULL); 6919 } 6920 } 6921 6922 static zprop_source_t 6923 get_property_source(zfs_handle_t *zfh, nvpair_t *prop) 6924 { 6925 data_type_t nvtype; 6926 nvlist_t *userprop; 6927 int ret; 6928 const char *fsname = zfs_get_name(zfh); 6929 char *source; 6930 zprop_source_t zret = ZPROP_SRC_NONE; 6931 6932 nvtype = nvpair_type(prop); 6933 assert(nvtype == DATA_TYPE_NVLIST); 6934 ret = nvpair_value_nvlist(prop, &userprop); 6935 assert(!ret); 6936 ret = nvlist_lookup_string(userprop, "source", &source); 6937 assert(!ret); 6938 6939 if (strcmp(source, fsname) == 0) 6940 zret = ZPROP_SRC_LOCAL; 6941 else 6942 zret = ZPROP_SRC_INHERITED; 6943 return zret; 6944 } 6945 6946 int 6947 get_userprop(zfs_handle_t *zfh, 6948 nvpair_t *prop, 6949 char **name, 6950 char **value, 6951 zprop_source_t *src) 6952 { 6953 int ret; 6954 data_type_t nvtype; 6955 nvlist_t *userprop; 6956 const char *fsname = zfs_get_name(zfh); 6957 6958 assert(name); 6959 assert(value); 6960 6961 *name = strdup(nvpair_name(prop)); 6962 assert(*name != NULL); 6963 6964 nvtype = nvpair_type(prop); 6965 if (nvtype != DATA_TYPE_NVLIST) { 6966 fprintf(stderr, "xget: get_userprop: user property has " 6967 "unexpected data type: property '%s' in zfs '%s':" 6968 " %d\n", *name, fsname, nvtype); 6969 goto err_userprop; 6970 } 6971 ret = nvpair_value_nvlist(prop, &userprop); 6972 if (ret) { 6973 fprintf(stderr, "xget: get_userprop: nvlist lookup failed for " 6974 "property '%s' in zfs '%s': %s\n", 6975 *name, fsname, strerror(ret)); 6976 goto err_userprop; 6977 } 6978 6979 /* get property value */ 6980 ret = nvlist_lookup_string(userprop, "value", value); 6981 if (ret) { 6982 const char *reason = "unknown"; 6983 6984 /* reasons for EINVAL from nvlist_lookup_string() */ 6985 if (userprop == NULL) 6986 reason = "userprop is NULL"; 6987 else if (userprop->nvl_priv == NULL) 6988 reason = "userprop->nvl_priv is NULL"; 6989 else if (name == NULL) 6990 reason = "name or userprop is NULL"; 6991 6992 fprintf(stderr, "xget: get_userprop: property value lookup " 6993 "failed for property '%s' in zfs '%s': %s reason=%s\n", 6994 *name, fsname, strerror(ret), reason); 6995 goto err_userprop; 6996 } 6997 *value = strdup(*value); 6998 assert(value != NULL); 6999 7000 /* get source */ 7001 if (src) 7002 *src = get_property_source(zfh, prop); 7003 return 0; 7004 7005 err_userprop: 7006 free(*name); 7007 *name = NULL; 7008 *value = NULL; 7009 return 1; 7010 } 7011 7012 static void 7013 print_property(zfs_handle_t *zfh, const char *propname, char *propval, 7014 zprop_source_t src) 7015 { 7016 char *src_name = NULL; 7017 7018 switch ((int)src) { 7019 case ZPROP_SRC_NONE: 7020 src_name = "-"; 7021 break; 7022 case ZPROP_SRC_DEFAULT: 7023 src_name = "default"; 7024 break; 7025 case ZPROP_SRC_LOCAL: 7026 src_name = "local"; 7027 break; 7028 case ZPROP_SRC_TEMPORARY: 7029 src_name = "temporary"; 7030 break; 7031 case ZPROP_SRC_INHERITED: 7032 src_name = "inherited"; 7033 break; 7034 case ZPROP_SRC_RECEIVED: 7035 src_name = "received"; 7036 break; 7037 default: 7038 src_name = "unknown"; 7039 break; 7040 } 7041 printf("%s\t%s\t%s\t%s\n", zfs_get_name(zfh), propname, propval, 7042 src_name); 7043 } 7044 7045 /* system property */ 7046 int 7047 xget_print_system_props(int prop_id, void *data) 7048 { 7049 zfs_handle_t *zfh = (zfs_handle_t *)data; 7050 char srcbuf[ZFS_MAXNAMELEN]; 7051 char buf[ZFS_MAXPROPLEN]; 7052 zprop_source_t src = NULL; 7053 int ret; 7054 7055 if (prop_id != ZPROP_INVAL) { 7056 ret = zfs_prop_get(zfh, prop_id, buf, sizeof(buf), 7057 &src, srcbuf, sizeof(srcbuf), B_TRUE); 7058 if (ret) { 7059 /* property not found */ 7060 print_property(zfh, zfs_prop_to_name(prop_id), "-", 7061 ZPROP_SRC_NONE); 7062 } else { 7063 print_property(zfh, zfs_prop_to_name(prop_id), buf, 7064 src); 7065 } 7066 return ZPROP_CONT; 7067 } 7068 return ZPROP_INVAL; 7069 } 7070 7071 void 7072 xget_print_user_props(zfs_handle_t *zfh, 7073 const char *propname, 7074 char **value, 7075 zprop_source_t src) 7076 { 7077 7078 nvlist_t *props; 7079 nvpair_t *prop = NULL; 7080 char *tvalue = NULL; 7081 char *name = NULL; 7082 const char *fsname = zfs_get_name(zfh); 7083 7084 /* user property */ 7085 props = zfs_get_user_props(zfh); 7086 while ((prop = nvlist_next_nvpair(props, prop))) { 7087 if (get_userprop(zfh, prop, &name, &tvalue, NULL)) { 7088 fprintf(stderr, "xget: get_property failed for %s\n", 7089 fsname); 7090 break; 7091 } 7092 if (strcmp(name, propname) == 0 || 7093 strcmp(propname, "all") == 0) { 7094 /* property found */ 7095 src = get_property_source(zfh, prop); 7096 print_property(zfh, name, tvalue, src); 7097 } 7098 free(name); 7099 free(tvalue); 7100 } 7101 } 7102 7103 int 7104 xget(zfs_handle_t *zfh, void *ctx) 7105 { 7106 const char *fsname = zfs_get_name(zfh); 7107 int ret; 7108 zprop_source_t src = ZPROP_SRC_NONE; 7109 7110 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 7111 ret = zfs_iter_snapshots(zfh, xget, ctx); 7112 if (ret) { 7113 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7114 libzfs_error_description(g_zfs)); 7115 exit(1); 7116 } 7117 } 7118 if (zfs_iter_filesystems(zfh, xget, ctx)) { 7119 fprintf(stderr, "xget failed for %s: %s\n", fsname, 7120 libzfs_error_description(g_zfs)); 7121 exit(1); 7122 } 7123 if (!(zfs_get_type(zfh) & dataset_type)) { 7124 zfs_close(zfh); 7125 return 0; 7126 } 7127 7128 /* 7129 * print requested properties 7130 */ 7131 char delimeter[] = ","; 7132 char *propval = NULL; 7133 char *propnames = strdup((char *)ctx); 7134 assert(propnames != NULL); 7135 char *propname = strtok(propnames, delimeter); 7136 7137 while (propname != NULL) { 7138 if (strcmp(propname, "all") == 0) { 7139 zprop_iter(xget_print_system_props, zfh, 7140 B_FALSE, B_FALSE, zfs_get_type(zfh)); 7141 } else { 7142 xget_print_system_props(zfs_name_to_prop(propname), 7143 zfh); 7144 } 7145 xget_print_user_props(zfh, propname, &propval, src); 7146 propname = strtok(NULL, delimeter); 7147 } 7148 free(propnames); 7149 zfs_close(zfh); 7150 return 0; 7151 } 7152 7153 static int 7154 zfs_do_xget(int argc, char **argv) 7155 { 7156 char *rootfs = NULL; 7157 char *path = NULL; 7158 dataset_type = ZFS_TYPE_FILESYSTEM; 7159 char *properties = "all"; 7160 char c; 7161 7162 while ((c = getopt(argc, argv, "hasS:r:p:v")) != -1) { 7163 switch (c) { 7164 case 'h': /* help */ 7165 usage(B_TRUE); 7166 return 1; 7167 case 'a': /* print fs and snapshots */ 7168 dataset_type |= ZFS_TYPE_SNAPSHOT; 7169 break; 7170 case 'r': /* rid */ 7171 rootfs = get_rid_fs(optarg); 7172 break; 7173 case 's': /* print snapshots only */ 7174 dataset_type = ZFS_TYPE_SNAPSHOT; 7175 break; 7176 case 'S': 7177 path = get_space_path(optarg); 7178 printf("%s\n", path); 7179 exit(0); 7180 case 'p': 7181 properties = optarg; 7182 break; 7183 case 'v': 7184 fprintf(stderr, "xget version %s\n", XVERSION); 7185 exit(0); 7186 default: 7187 (void) fprintf(stderr, 7188 gettext("invalid option '%c'\n"), optopt); 7189 usage(B_FALSE); 7190 } 7191 } 7192 7193 argc -= optind; 7194 argv += optind; 7195 7196 if (!rootfs) 7197 rootfs = *argv; 7198 7199 if (rootfs == NULL) { 7200 return zfs_iter_root(g_zfs, xget, properties); 7201 } else { 7202 zfs_handle_t *zfsh = zfs_open(g_zfs, rootfs, 7203 ZFS_TYPE_FILESYSTEM); 7204 if (!zfsh) { 7205 fprintf(stderr, "zfs_open failed for %s\n", 7206 rootfs); 7207 exit(1); 7208 } 7209 return xget(zfsh, properties); 7210 } 7211 } 7212 7213 static int 7214 zfs_do_diff(int argc, char **argv) 7215 { 7216 zfs_handle_t *zhp; 7217 int flags = 0; 7218 char *tosnap = NULL; 7219 char *fromsnap = NULL; 7220 char *atp, *copy; 7221 int err = 0; 7222 int c; 7223 7224 while ((c = getopt(argc, argv, "FHt")) != -1) { 7225 switch (c) { 7226 case 'F': 7227 flags |= ZFS_DIFF_CLASSIFY; 7228 break; 7229 case 'H': 7230 flags |= ZFS_DIFF_PARSEABLE; 7231 break; 7232 case 't': 7233 flags |= ZFS_DIFF_TIMESTAMP; 7234 break; 7235 default: 7236 (void) fprintf(stderr, 7237 gettext("invalid option '%c'\n"), optopt); 7238 usage(B_FALSE); 7239 } 7240 } 7241 7242 argc -= optind; 7243 argv += optind; 7244 7245 if (argc < 1) { 7246 (void) fprintf(stderr, 7247 gettext("must provide at least one snapshot name\n")); 7248 usage(B_FALSE); 7249 } 7250 7251 if (argc > 2) { 7252 (void) fprintf(stderr, gettext("too many arguments\n")); 7253 usage(B_FALSE); 7254 } 7255 7256 fromsnap = argv[0]; 7257 tosnap = (argc == 2) ? argv[1] : NULL; 7258 7259 copy = NULL; 7260 if (*fromsnap != '@') 7261 copy = strdup(fromsnap); 7262 else if (tosnap) 7263 copy = strdup(tosnap); 7264 if (copy == NULL) 7265 usage(B_FALSE); 7266 7267 if ((atp = strchr(copy, '@')) != NULL) 7268 *atp = '\0'; 7269 7270 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 7271 return (1); 7272 7273 free(copy); 7274 7275 /* 7276 * Ignore SIGPIPE so that the library can give us 7277 * information on any failure 7278 */ 7279 (void) sigignore(SIGPIPE); 7280 7281 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7282 7283 zfs_close(zhp); 7284 7285 return (err != 0); 7286 } 7287 7288 /* 7289 * zfs bookmark <fs@snap> <fs#bmark> 7290 * 7291 * Creates a bookmark with the given name from the given snapshot. 7292 */ 7293 static int 7294 zfs_do_bookmark(int argc, char **argv) 7295 { 7296 char snapname[ZFS_MAXNAMELEN]; 7297 zfs_handle_t *zhp; 7298 nvlist_t *nvl; 7299 int ret = 0; 7300 int c; 7301 7302 /* check options */ 7303 while ((c = getopt(argc, argv, "")) != -1) { 7304 switch (c) { 7305 case '?': 7306 (void) fprintf(stderr, 7307 gettext("invalid option '%c'\n"), optopt); 7308 goto usage; 7309 } 7310 } 7311 7312 argc -= optind; 7313 argv += optind; 7314 7315 /* check number of arguments */ 7316 if (argc < 1) { 7317 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7318 goto usage; 7319 } 7320 if (argc < 2) { 7321 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7322 goto usage; 7323 } 7324 7325 if (strchr(argv[1], '#') == NULL) { 7326 (void) fprintf(stderr, 7327 gettext("invalid bookmark name '%s' -- " 7328 "must contain a '#'\n"), argv[1]); 7329 goto usage; 7330 } 7331 7332 if (argv[0][0] == '@') { 7333 /* 7334 * Snapshot name begins with @. 7335 * Default to same fs as bookmark. 7336 */ 7337 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7338 *strchr(snapname, '#') = '\0'; 7339 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7340 } else { 7341 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7342 } 7343 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7344 if (zhp == NULL) 7345 goto usage; 7346 zfs_close(zhp); 7347 7348 7349 nvl = fnvlist_alloc(); 7350 fnvlist_add_string(nvl, argv[1], snapname); 7351 ret = lzc_bookmark(nvl, NULL); 7352 fnvlist_free(nvl); 7353 7354 if (ret != 0) { 7355 const char *err_msg; 7356 char errbuf[1024]; 7357 7358 (void) snprintf(errbuf, sizeof (errbuf), 7359 dgettext(TEXT_DOMAIN, 7360 "cannot create bookmark '%s'"), argv[1]); 7361 7362 switch (ret) { 7363 case EXDEV: 7364 err_msg = "bookmark is in a different pool"; 7365 break; 7366 case EEXIST: 7367 err_msg = "bookmark exists"; 7368 break; 7369 case EINVAL: 7370 err_msg = "invalid argument"; 7371 break; 7372 case ENOTSUP: 7373 err_msg = "bookmark feature not enabled"; 7374 break; 7375 case ENOSPC: 7376 err_msg = "out of space"; 7377 break; 7378 default: 7379 err_msg = "unknown error"; 7380 break; 7381 } 7382 (void) fprintf(stderr, "%s: %s\n", errbuf, 7383 dgettext(TEXT_DOMAIN, err_msg)); 7384 } 7385 7386 return (ret != 0); 7387 7388 usage: 7389 usage(B_FALSE); 7390 return (-1); 7391 } 7392 7393 int 7394 main(int argc, char **argv) 7395 { 7396 int ret = 0; 7397 int i; 7398 char *progname; 7399 char *cmdname; 7400 7401 (void) setlocale(LC_ALL, ""); 7402 (void) textdomain(TEXT_DOMAIN); 7403 7404 opterr = 0; 7405 7406 if ((g_zfs = libzfs_init()) == NULL) { 7407 (void) fprintf(stderr, gettext("internal error: failed to " 7408 "initialize ZFS library\n")); 7409 return (1); 7410 } 7411 7412 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7413 7414 libzfs_print_on_error(g_zfs, B_TRUE); 7415 7416 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7417 (void) fprintf(stderr, gettext("internal error: unable to " 7418 "open %s\n"), MNTTAB); 7419 return (1); 7420 } 7421 7422 /* 7423 * This command also doubles as the /etc/fs mount and unmount program. 7424 * Determine if we should take this behavior based on argv[0]. 7425 */ 7426 progname = basename(argv[0]); 7427 if (strcmp(progname, "mount") == 0) { 7428 ret = manual_mount(argc, argv); 7429 } else if (strcmp(progname, "umount") == 0) { 7430 ret = manual_unmount(argc, argv); 7431 } else { 7432 /* 7433 * Make sure the user has specified some command. 7434 */ 7435 if (argc < 2) { 7436 (void) fprintf(stderr, gettext("missing command\n")); 7437 usage(B_FALSE); 7438 } 7439 7440 cmdname = argv[1]; 7441 7442 /* 7443 * The 'umount' command is an alias for 'unmount' 7444 */ 7445 if (strcmp(cmdname, "umount") == 0) 7446 cmdname = "unmount"; 7447 7448 /* 7449 * The 'recv' command is an alias for 'receive' 7450 */ 7451 if (strcmp(cmdname, "recv") == 0) 7452 cmdname = "receive"; 7453 7454 /* 7455 * The 'snap' command is an alias for 'snapshot' 7456 */ 7457 if (strcmp(cmdname, "snap") == 0) 7458 cmdname = "snapshot"; 7459 7460 /* 7461 * Special case '-?' 7462 */ 7463 if (strcmp(cmdname, "-?") == 0) 7464 usage(B_TRUE); 7465 7466 /* 7467 * Run the appropriate command. 7468 */ 7469 libzfs_mnttab_cache(g_zfs, B_TRUE); 7470 if (find_command_idx(cmdname, &i) == 0) { 7471 current_command = &command_table[i]; 7472 ret = command_table[i].func(argc - 1, argv + 1); 7473 } else if (strchr(cmdname, '=') != NULL) { 7474 verify(find_command_idx("set", &i) == 0); 7475 current_command = &command_table[i]; 7476 ret = command_table[i].func(argc, argv); 7477 } else { 7478 (void) fprintf(stderr, gettext("unrecognized " 7479 "command '%s'\n"), cmdname); 7480 usage(B_FALSE); 7481 } 7482 libzfs_mnttab_cache(g_zfs, B_FALSE); 7483 } 7484 7485 (void) fclose(mnttab_file); 7486 7487 if (ret == 0 && log_history) 7488 (void) zpool_log_history(g_zfs, history_str); 7489 7490 libzfs_fini(g_zfs); 7491 7492 /* 7493 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7494 * for the purposes of running ::findleaks. 7495 */ 7496 if (getenv("ZFS_ABORT") != NULL) { 7497 (void) printf("dumping core by request\n"); 7498 abort(); 7499 } 7500 7501 return (ret); 7502 } 7503