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, 2016 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 28 * Copyright (c) 2013 Steven Hartland. All rights reserved. 29 * Copyright (c) 2014 Integros [integros.com] 30 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 31 * Copyright 2016 Nexenta Systems, Inc. 32 */ 33 34 #include <assert.h> 35 #include <ctype.h> 36 #include <errno.h> 37 #include <getopt.h> 38 #include <libgen.h> 39 #include <libintl.h> 40 #include <libuutil.h> 41 #include <libnvpair.h> 42 #include <locale.h> 43 #include <stddef.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <strings.h> 47 #include <unistd.h> 48 #include <fcntl.h> 49 #include <zone.h> 50 #include <grp.h> 51 #include <pwd.h> 52 #include <signal.h> 53 #include <sys/debug.h> 54 #include <sys/list.h> 55 #include <sys/mkdev.h> 56 #include <sys/mntent.h> 57 #include <sys/mnttab.h> 58 #include <sys/mount.h> 59 #include <sys/stat.h> 60 #include <sys/fs/zfs.h> 61 #include <sys/types.h> 62 #include <time.h> 63 64 #include <libzfs.h> 65 #include <libzfs_core.h> 66 #include <zfs_prop.h> 67 #include <zfs_deleg.h> 68 #include <libuutil.h> 69 #include <aclutils.h> 70 #include <directory.h> 71 #include <idmap.h> 72 #include <libshare.h> 73 74 #include "zfs_iter.h" 75 #include "zfs_util.h" 76 #include "zfs_comutil.h" 77 78 libzfs_handle_t *g_zfs; 79 80 static FILE *mnttab_file; 81 static char history_str[HIS_MAX_RECORD_LEN]; 82 static boolean_t log_history = B_TRUE; 83 84 static int zfs_do_clone(int argc, char **argv); 85 static int zfs_do_create(int argc, char **argv); 86 static int zfs_do_destroy(int argc, char **argv); 87 static int zfs_do_get(int argc, char **argv); 88 static int zfs_do_inherit(int argc, char **argv); 89 static int zfs_do_list(int argc, char **argv); 90 static int zfs_do_mount(int argc, char **argv); 91 static int zfs_do_rename(int argc, char **argv); 92 static int zfs_do_rollback(int argc, char **argv); 93 static int zfs_do_set(int argc, char **argv); 94 static int zfs_do_upgrade(int argc, char **argv); 95 static int zfs_do_snapshot(int argc, char **argv); 96 static int zfs_do_unmount(int argc, char **argv); 97 static int zfs_do_share(int argc, char **argv); 98 static int zfs_do_unshare(int argc, char **argv); 99 static int zfs_do_send(int argc, char **argv); 100 static int zfs_do_receive(int argc, char **argv); 101 static int zfs_do_promote(int argc, char **argv); 102 static int zfs_do_userspace(int argc, char **argv); 103 static int zfs_do_allow(int argc, char **argv); 104 static int zfs_do_unallow(int argc, char **argv); 105 static int zfs_do_hold(int argc, char **argv); 106 static int zfs_do_holds(int argc, char **argv); 107 static int zfs_do_release(int argc, char **argv); 108 static int zfs_do_diff(int argc, char **argv); 109 static int zfs_do_bookmark(int argc, char **argv); 110 static int zfs_do_channel_program(int argc, char **argv); 111 112 /* 113 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 114 */ 115 116 #ifdef DEBUG 117 const char * 118 _umem_debug_init(void) 119 { 120 return ("default,verbose"); /* $UMEM_DEBUG setting */ 121 } 122 123 const char * 124 _umem_logging_init(void) 125 { 126 return ("fail,contents"); /* $UMEM_LOGGING setting */ 127 } 128 #endif 129 130 typedef enum { 131 HELP_CLONE, 132 HELP_CREATE, 133 HELP_DESTROY, 134 HELP_GET, 135 HELP_INHERIT, 136 HELP_UPGRADE, 137 HELP_LIST, 138 HELP_MOUNT, 139 HELP_PROMOTE, 140 HELP_RECEIVE, 141 HELP_RENAME, 142 HELP_ROLLBACK, 143 HELP_SEND, 144 HELP_SET, 145 HELP_SHARE, 146 HELP_SNAPSHOT, 147 HELP_UNMOUNT, 148 HELP_UNSHARE, 149 HELP_ALLOW, 150 HELP_UNALLOW, 151 HELP_USERSPACE, 152 HELP_GROUPSPACE, 153 HELP_HOLD, 154 HELP_HOLDS, 155 HELP_RELEASE, 156 HELP_DIFF, 157 HELP_BOOKMARK, 158 HELP_CHANNEL_PROGRAM, 159 } zfs_help_t; 160 161 typedef struct zfs_command { 162 const char *name; 163 int (*func)(int argc, char **argv); 164 zfs_help_t usage; 165 } zfs_command_t; 166 167 /* 168 * Master command table. Each ZFS command has a name, associated function, and 169 * usage message. The usage messages need to be internationalized, so we have 170 * to have a function to return the usage message based on a command index. 171 * 172 * These commands are organized according to how they are displayed in the usage 173 * message. An empty command (one with a NULL name) indicates an empty line in 174 * the generic usage message. 175 */ 176 static zfs_command_t command_table[] = { 177 { "create", zfs_do_create, HELP_CREATE }, 178 { "destroy", zfs_do_destroy, HELP_DESTROY }, 179 { NULL }, 180 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 181 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 182 { "clone", zfs_do_clone, HELP_CLONE }, 183 { "promote", zfs_do_promote, HELP_PROMOTE }, 184 { "rename", zfs_do_rename, HELP_RENAME }, 185 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 186 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 187 { NULL }, 188 { "list", zfs_do_list, HELP_LIST }, 189 { NULL }, 190 { "set", zfs_do_set, HELP_SET }, 191 { "get", zfs_do_get, HELP_GET }, 192 { "inherit", zfs_do_inherit, HELP_INHERIT }, 193 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 194 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 195 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 196 { NULL }, 197 { "mount", zfs_do_mount, HELP_MOUNT }, 198 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 199 { "share", zfs_do_share, HELP_SHARE }, 200 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 201 { NULL }, 202 { "send", zfs_do_send, HELP_SEND }, 203 { "receive", zfs_do_receive, HELP_RECEIVE }, 204 { NULL }, 205 { "allow", zfs_do_allow, HELP_ALLOW }, 206 { NULL }, 207 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 208 { NULL }, 209 { "hold", zfs_do_hold, HELP_HOLD }, 210 { "holds", zfs_do_holds, HELP_HOLDS }, 211 { "release", zfs_do_release, HELP_RELEASE }, 212 { "diff", zfs_do_diff, HELP_DIFF }, 213 }; 214 215 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 216 217 zfs_command_t *current_command; 218 219 static const char * 220 get_usage(zfs_help_t idx) 221 { 222 switch (idx) { 223 case HELP_CLONE: 224 return (gettext("\tclone [-p] [-o property=value] ... " 225 "<snapshot> <filesystem|volume>\n")); 226 case HELP_CREATE: 227 return (gettext("\tcreate [-p] [-o property=value] ... " 228 "<filesystem>\n" 229 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 230 "-V <size> <volume>\n")); 231 case HELP_DESTROY: 232 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 233 "\tdestroy [-dnpRrv] " 234 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 235 "\tdestroy <filesystem|volume>#<bookmark>\n")); 236 case HELP_GET: 237 return (gettext("\tget [-rHp] [-d max] " 238 "[-o \"all\" | field[,...]]\n" 239 "\t [-t type[,...]] [-s source[,...]]\n" 240 "\t <\"all\" | property[,...]> " 241 "[filesystem|volume|snapshot|bookmark] ...\n")); 242 case HELP_INHERIT: 243 return (gettext("\tinherit [-rS] <property> " 244 "<filesystem|volume|snapshot> ...\n")); 245 case HELP_UPGRADE: 246 return (gettext("\tupgrade [-v]\n" 247 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 248 case HELP_LIST: 249 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 250 "[-s property]...\n\t [-S property]... [-t type[,...]] " 251 "[filesystem|volume|snapshot] ...\n")); 252 case HELP_MOUNT: 253 return (gettext("\tmount\n" 254 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 255 case HELP_PROMOTE: 256 return (gettext("\tpromote <clone-filesystem>\n")); 257 case HELP_RECEIVE: 258 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 259 "snapshot>\n" 260 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 261 "<filesystem>\n" 262 "\treceive -A <filesystem|volume>\n")); 263 case HELP_RENAME: 264 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 265 "<filesystem|volume|snapshot>\n" 266 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 267 "\trename -r <snapshot> <snapshot>\n")); 268 case HELP_ROLLBACK: 269 return (gettext("\trollback [-rRf] <snapshot>\n")); 270 case HELP_SEND: 271 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] " 272 "<snapshot>\n" 273 "\tsend [-Le] [-i snapshot|bookmark] " 274 "<filesystem|volume|snapshot>\n" 275 "\tsend [-nvPe] -t <receive_resume_token>\n")); 276 case HELP_SET: 277 return (gettext("\tset <property=value> ... " 278 "<filesystem|volume|snapshot> ...\n")); 279 case HELP_SHARE: 280 return (gettext("\tshare <-a | filesystem>\n")); 281 case HELP_SNAPSHOT: 282 return (gettext("\tsnapshot [-r] [-o property=value] ... " 283 "<filesystem|volume>@<snap> ...\n")); 284 case HELP_UNMOUNT: 285 return (gettext("\tunmount [-f] " 286 "<-a | filesystem|mountpoint>\n")); 287 case HELP_UNSHARE: 288 return (gettext("\tunshare " 289 "<-a | filesystem|mountpoint>\n")); 290 case HELP_ALLOW: 291 return (gettext("\tallow <filesystem|volume>\n" 292 "\tallow [-ldug] " 293 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 294 "\t <filesystem|volume>\n" 295 "\tallow [-ld] -e <perm|@setname>[,...] " 296 "<filesystem|volume>\n" 297 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 298 "\tallow -s @setname <perm|@setname>[,...] " 299 "<filesystem|volume>\n")); 300 case HELP_UNALLOW: 301 return (gettext("\tunallow [-rldug] " 302 "<\"everyone\"|user|group>[,...]\n" 303 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 304 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 305 "<filesystem|volume>\n" 306 "\tunallow [-r] -c [<perm|@setname>[,...]] " 307 "<filesystem|volume>\n" 308 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 309 "<filesystem|volume>\n")); 310 case HELP_USERSPACE: 311 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 312 "[-s field] ...\n" 313 "\t [-S field] ... [-t type[,...]] " 314 "<filesystem|snapshot>\n")); 315 case HELP_GROUPSPACE: 316 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 317 "[-s field] ...\n" 318 "\t [-S field] ... [-t type[,...]] " 319 "<filesystem|snapshot>\n")); 320 case HELP_HOLD: 321 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 322 case HELP_HOLDS: 323 return (gettext("\tholds [-r] <snapshot> ...\n")); 324 case HELP_RELEASE: 325 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 326 case HELP_DIFF: 327 return (gettext("\tdiff [-FHt] <snapshot> " 328 "[snapshot|filesystem]\n")); 329 case HELP_BOOKMARK: 330 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 331 case HELP_CHANNEL_PROGRAM: 332 return (gettext("\tprogram [-t <instruction limit>] " 333 "[-m <memory limit (b)>] <pool> <program file> " 334 "[lua args...]\n")); 335 } 336 337 abort(); 338 /* NOTREACHED */ 339 } 340 341 void 342 nomem(void) 343 { 344 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 345 exit(1); 346 } 347 348 /* 349 * Utility function to guarantee malloc() success. 350 */ 351 352 void * 353 safe_malloc(size_t size) 354 { 355 void *data; 356 357 if ((data = calloc(1, size)) == NULL) 358 nomem(); 359 360 return (data); 361 } 362 363 void * 364 safe_realloc(void *data, size_t size) 365 { 366 void *newp; 367 if ((newp = realloc(data, size)) == NULL) { 368 free(data); 369 nomem(); 370 } 371 372 return (newp); 373 } 374 375 static char * 376 safe_strdup(char *str) 377 { 378 char *dupstr = strdup(str); 379 380 if (dupstr == NULL) 381 nomem(); 382 383 return (dupstr); 384 } 385 386 /* 387 * Callback routine that will print out information for each of 388 * the properties. 389 */ 390 static int 391 usage_prop_cb(int prop, void *cb) 392 { 393 FILE *fp = cb; 394 395 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 396 397 if (zfs_prop_readonly(prop)) 398 (void) fprintf(fp, " NO "); 399 else 400 (void) fprintf(fp, "YES "); 401 402 if (zfs_prop_inheritable(prop)) 403 (void) fprintf(fp, " YES "); 404 else 405 (void) fprintf(fp, " NO "); 406 407 if (zfs_prop_values(prop) == NULL) 408 (void) fprintf(fp, "-\n"); 409 else 410 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 411 412 return (ZPROP_CONT); 413 } 414 415 /* 416 * Display usage message. If we're inside a command, display only the usage for 417 * that command. Otherwise, iterate over the entire command table and display 418 * a complete usage message. 419 */ 420 static void 421 usage(boolean_t requested) 422 { 423 int i; 424 boolean_t show_properties = B_FALSE; 425 FILE *fp = requested ? stdout : stderr; 426 427 if (current_command == NULL) { 428 429 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 430 (void) fprintf(fp, 431 gettext("where 'command' is one of the following:\n\n")); 432 433 for (i = 0; i < NCOMMAND; i++) { 434 if (command_table[i].name == NULL) 435 (void) fprintf(fp, "\n"); 436 else 437 (void) fprintf(fp, "%s", 438 get_usage(command_table[i].usage)); 439 } 440 441 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 442 "pool/[dataset/]*dataset[@name]\n")); 443 } else { 444 (void) fprintf(fp, gettext("usage:\n")); 445 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 446 } 447 448 if (current_command != NULL && 449 (strcmp(current_command->name, "set") == 0 || 450 strcmp(current_command->name, "get") == 0 || 451 strcmp(current_command->name, "inherit") == 0 || 452 strcmp(current_command->name, "list") == 0)) 453 show_properties = B_TRUE; 454 455 if (show_properties) { 456 (void) fprintf(fp, 457 gettext("\nThe following properties are supported:\n")); 458 459 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 460 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 461 462 /* Iterate over all properties */ 463 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 464 ZFS_TYPE_DATASET); 465 466 (void) fprintf(fp, "\t%-15s ", "userused@..."); 467 (void) fprintf(fp, " NO NO <size>\n"); 468 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 469 (void) fprintf(fp, " NO NO <size>\n"); 470 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 471 (void) fprintf(fp, "YES NO <size> | none\n"); 472 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 473 (void) fprintf(fp, "YES NO <size> | none\n"); 474 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 475 (void) fprintf(fp, " NO NO <size>\n"); 476 477 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 478 "with standard units such as K, M, G, etc.\n")); 479 (void) fprintf(fp, gettext("\nUser-defined properties can " 480 "be specified by using a name containing a colon (:).\n")); 481 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 482 "properties must be appended with\n" 483 "a user or group specifier of one of these forms:\n" 484 " POSIX name (eg: \"matt\")\n" 485 " POSIX id (eg: \"126829\")\n" 486 " SMB name@domain (eg: \"matt@sun\")\n" 487 " SMB SID (eg: \"S-1-234-567-89\")\n")); 488 } else { 489 (void) fprintf(fp, 490 gettext("\nFor the property list, run: %s\n"), 491 "zfs set|get"); 492 (void) fprintf(fp, 493 gettext("\nFor the delegated permission list, run: %s\n"), 494 "zfs allow|unallow"); 495 } 496 497 /* 498 * See comments at end of main(). 499 */ 500 if (getenv("ZFS_ABORT") != NULL) { 501 (void) printf("dumping core by request\n"); 502 abort(); 503 } 504 505 exit(requested ? 0 : 2); 506 } 507 508 /* 509 * Take a property=value argument string and add it to the given nvlist. 510 * Modifies the argument inplace. 511 */ 512 static int 513 parseprop(nvlist_t *props, char *propname) 514 { 515 char *propval, *strval; 516 517 if ((propval = strchr(propname, '=')) == NULL) { 518 (void) fprintf(stderr, gettext("missing " 519 "'=' for property=value argument\n")); 520 return (-1); 521 } 522 *propval = '\0'; 523 propval++; 524 if (nvlist_lookup_string(props, propname, &strval) == 0) { 525 (void) fprintf(stderr, gettext("property '%s' " 526 "specified multiple times\n"), propname); 527 return (-1); 528 } 529 if (nvlist_add_string(props, propname, propval) != 0) 530 nomem(); 531 return (0); 532 } 533 534 static int 535 parse_depth(char *opt, int *flags) 536 { 537 char *tmp; 538 int depth; 539 540 depth = (int)strtol(opt, &tmp, 0); 541 if (*tmp) { 542 (void) fprintf(stderr, 543 gettext("%s is not an integer\n"), optarg); 544 usage(B_FALSE); 545 } 546 if (depth < 0) { 547 (void) fprintf(stderr, 548 gettext("Depth can not be negative.\n")); 549 usage(B_FALSE); 550 } 551 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 552 return (depth); 553 } 554 555 #define PROGRESS_DELAY 2 /* seconds */ 556 557 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"; 558 static time_t pt_begin; 559 static char *pt_header = NULL; 560 static boolean_t pt_shown; 561 562 static void 563 start_progress_timer(void) 564 { 565 pt_begin = time(NULL) + PROGRESS_DELAY; 566 pt_shown = B_FALSE; 567 } 568 569 static void 570 set_progress_header(char *header) 571 { 572 assert(pt_header == NULL); 573 pt_header = safe_strdup(header); 574 if (pt_shown) { 575 (void) printf("%s: ", header); 576 (void) fflush(stdout); 577 } 578 } 579 580 static void 581 update_progress(char *update) 582 { 583 if (!pt_shown && time(NULL) > pt_begin) { 584 int len = strlen(update); 585 586 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 587 pt_reverse); 588 (void) fflush(stdout); 589 pt_shown = B_TRUE; 590 } else if (pt_shown) { 591 int len = strlen(update); 592 593 (void) printf("%s%*.*s", update, len, len, pt_reverse); 594 (void) fflush(stdout); 595 } 596 } 597 598 static void 599 finish_progress(char *done) 600 { 601 if (pt_shown) { 602 (void) printf("%s\n", done); 603 (void) fflush(stdout); 604 } 605 free(pt_header); 606 pt_header = NULL; 607 } 608 609 /* 610 * Check if the dataset is mountable and should be automatically mounted. 611 */ 612 static boolean_t 613 should_auto_mount(zfs_handle_t *zhp) 614 { 615 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 616 return (B_FALSE); 617 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 618 } 619 620 /* 621 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 622 * 623 * Given an existing dataset, create a writable copy whose initial contents 624 * are the same as the source. The newly created dataset maintains a 625 * dependency on the original; the original cannot be destroyed so long as 626 * the clone exists. 627 * 628 * The '-p' flag creates all the non-existing ancestors of the target first. 629 */ 630 static int 631 zfs_do_clone(int argc, char **argv) 632 { 633 zfs_handle_t *zhp = NULL; 634 boolean_t parents = B_FALSE; 635 nvlist_t *props; 636 int ret = 0; 637 int c; 638 639 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 640 nomem(); 641 642 /* check options */ 643 while ((c = getopt(argc, argv, "o:p")) != -1) { 644 switch (c) { 645 case 'o': 646 if (parseprop(props, optarg) != 0) 647 return (1); 648 break; 649 case 'p': 650 parents = B_TRUE; 651 break; 652 case '?': 653 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 654 optopt); 655 goto usage; 656 } 657 } 658 659 argc -= optind; 660 argv += optind; 661 662 /* check number of arguments */ 663 if (argc < 1) { 664 (void) fprintf(stderr, gettext("missing source dataset " 665 "argument\n")); 666 goto usage; 667 } 668 if (argc < 2) { 669 (void) fprintf(stderr, gettext("missing target dataset " 670 "argument\n")); 671 goto usage; 672 } 673 if (argc > 2) { 674 (void) fprintf(stderr, gettext("too many arguments\n")); 675 goto usage; 676 } 677 678 /* open the source dataset */ 679 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 680 return (1); 681 682 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 683 ZFS_TYPE_VOLUME)) { 684 /* 685 * Now create the ancestors of the target dataset. If the 686 * target already exists and '-p' option was used we should not 687 * complain. 688 */ 689 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 690 ZFS_TYPE_VOLUME)) 691 return (0); 692 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 693 return (1); 694 } 695 696 /* pass to libzfs */ 697 ret = zfs_clone(zhp, argv[1], props); 698 699 /* create the mountpoint if necessary */ 700 if (ret == 0) { 701 zfs_handle_t *clone; 702 703 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 704 if (clone != NULL) { 705 /* 706 * If the user doesn't want the dataset 707 * automatically mounted, then skip the mount/share 708 * step. 709 */ 710 if (should_auto_mount(clone)) { 711 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 712 (void) fprintf(stderr, gettext("clone " 713 "successfully created, " 714 "but not mounted\n")); 715 } else if ((ret = zfs_share(clone)) != 0) { 716 (void) fprintf(stderr, gettext("clone " 717 "successfully created, " 718 "but not shared\n")); 719 } 720 } 721 zfs_close(clone); 722 } 723 } 724 725 zfs_close(zhp); 726 nvlist_free(props); 727 728 return (!!ret); 729 730 usage: 731 if (zhp) 732 zfs_close(zhp); 733 nvlist_free(props); 734 usage(B_FALSE); 735 return (-1); 736 } 737 738 /* 739 * zfs create [-p] [-o prop=value] ... fs 740 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 741 * 742 * Create a new dataset. This command can be used to create filesystems 743 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 744 * For volumes, the user must specify a size to be used. 745 * 746 * The '-s' flag applies only to volumes, and indicates that we should not try 747 * to set the reservation for this volume. By default we set a reservation 748 * equal to the size for any volume. For pools with SPA_VERSION >= 749 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 750 * 751 * The '-p' flag creates all the non-existing ancestors of the target first. 752 */ 753 static int 754 zfs_do_create(int argc, char **argv) 755 { 756 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 757 zfs_handle_t *zhp = NULL; 758 uint64_t volsize = 0; 759 int c; 760 boolean_t noreserve = B_FALSE; 761 boolean_t bflag = B_FALSE; 762 boolean_t parents = B_FALSE; 763 int ret = 1; 764 nvlist_t *props; 765 uint64_t intval; 766 767 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 768 nomem(); 769 770 /* check options */ 771 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 772 switch (c) { 773 case 'V': 774 type = ZFS_TYPE_VOLUME; 775 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 776 (void) fprintf(stderr, gettext("bad volume " 777 "size '%s': %s\n"), optarg, 778 libzfs_error_description(g_zfs)); 779 goto error; 780 } 781 782 if (nvlist_add_uint64(props, 783 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 784 nomem(); 785 volsize = intval; 786 break; 787 case 'p': 788 parents = B_TRUE; 789 break; 790 case 'b': 791 bflag = B_TRUE; 792 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 793 (void) fprintf(stderr, gettext("bad volume " 794 "block size '%s': %s\n"), optarg, 795 libzfs_error_description(g_zfs)); 796 goto error; 797 } 798 799 if (nvlist_add_uint64(props, 800 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 801 intval) != 0) 802 nomem(); 803 break; 804 case 'o': 805 if (parseprop(props, optarg) != 0) 806 goto error; 807 break; 808 case 's': 809 noreserve = B_TRUE; 810 break; 811 case ':': 812 (void) fprintf(stderr, gettext("missing size " 813 "argument\n")); 814 goto badusage; 815 case '?': 816 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 817 optopt); 818 goto badusage; 819 } 820 } 821 822 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 823 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 824 "used when creating a volume\n")); 825 goto badusage; 826 } 827 828 argc -= optind; 829 argv += optind; 830 831 /* check number of arguments */ 832 if (argc == 0) { 833 (void) fprintf(stderr, gettext("missing %s argument\n"), 834 zfs_type_to_name(type)); 835 goto badusage; 836 } 837 if (argc > 1) { 838 (void) fprintf(stderr, gettext("too many arguments\n")); 839 goto badusage; 840 } 841 842 if (type == ZFS_TYPE_VOLUME && !noreserve) { 843 zpool_handle_t *zpool_handle; 844 nvlist_t *real_props = NULL; 845 uint64_t spa_version; 846 char *p; 847 zfs_prop_t resv_prop; 848 char *strval; 849 char msg[1024]; 850 851 if ((p = strchr(argv[0], '/')) != NULL) 852 *p = '\0'; 853 zpool_handle = zpool_open(g_zfs, argv[0]); 854 if (p != NULL) 855 *p = '/'; 856 if (zpool_handle == NULL) 857 goto error; 858 spa_version = zpool_get_prop_int(zpool_handle, 859 ZPOOL_PROP_VERSION, NULL); 860 if (spa_version >= SPA_VERSION_REFRESERVATION) 861 resv_prop = ZFS_PROP_REFRESERVATION; 862 else 863 resv_prop = ZFS_PROP_RESERVATION; 864 865 (void) snprintf(msg, sizeof (msg), 866 gettext("cannot create '%s'"), argv[0]); 867 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 868 props, 0, NULL, zpool_handle, msg)) == NULL) { 869 zpool_close(zpool_handle); 870 goto error; 871 } 872 zpool_close(zpool_handle); 873 874 volsize = zvol_volsize_to_reservation(volsize, real_props); 875 nvlist_free(real_props); 876 877 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 878 &strval) != 0) { 879 if (nvlist_add_uint64(props, 880 zfs_prop_to_name(resv_prop), volsize) != 0) { 881 nvlist_free(props); 882 nomem(); 883 } 884 } 885 } 886 887 if (parents && zfs_name_valid(argv[0], type)) { 888 /* 889 * Now create the ancestors of target dataset. If the target 890 * already exists and '-p' option was used we should not 891 * complain. 892 */ 893 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 894 ret = 0; 895 goto error; 896 } 897 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 898 goto error; 899 } 900 901 /* pass to libzfs */ 902 if (zfs_create(g_zfs, argv[0], type, props) != 0) 903 goto error; 904 905 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 906 goto error; 907 908 ret = 0; 909 910 /* 911 * Mount and/or share the new filesystem as appropriate. We provide a 912 * verbose error message to let the user know that their filesystem was 913 * in fact created, even if we failed to mount or share it. 914 * If the user doesn't want the dataset automatically mounted, 915 * then skip the mount/share step altogether. 916 */ 917 if (should_auto_mount(zhp)) { 918 if (zfs_mount(zhp, NULL, 0) != 0) { 919 (void) fprintf(stderr, gettext("filesystem " 920 "successfully created, but not mounted\n")); 921 ret = 1; 922 } else if (zfs_share(zhp) != 0) { 923 (void) fprintf(stderr, gettext("filesystem " 924 "successfully created, but not shared\n")); 925 ret = 1; 926 } 927 } 928 929 error: 930 if (zhp) 931 zfs_close(zhp); 932 nvlist_free(props); 933 return (ret); 934 badusage: 935 nvlist_free(props); 936 usage(B_FALSE); 937 return (2); 938 } 939 940 /* 941 * zfs destroy [-rRf] <fs, vol> 942 * zfs destroy [-rRd] <snap> 943 * 944 * -r Recursively destroy all children 945 * -R Recursively destroy all dependents, including clones 946 * -f Force unmounting of any dependents 947 * -d If we can't destroy now, mark for deferred destruction 948 * 949 * Destroys the given dataset. By default, it will unmount any filesystems, 950 * and refuse to destroy a dataset that has any dependents. A dependent can 951 * either be a child, or a clone of a child. 952 */ 953 typedef struct destroy_cbdata { 954 boolean_t cb_first; 955 boolean_t cb_force; 956 boolean_t cb_recurse; 957 boolean_t cb_error; 958 boolean_t cb_doclones; 959 zfs_handle_t *cb_target; 960 boolean_t cb_defer_destroy; 961 boolean_t cb_verbose; 962 boolean_t cb_parsable; 963 boolean_t cb_dryrun; 964 nvlist_t *cb_nvl; 965 nvlist_t *cb_batchedsnaps; 966 967 /* first snap in contiguous run */ 968 char *cb_firstsnap; 969 /* previous snap in contiguous run */ 970 char *cb_prevsnap; 971 int64_t cb_snapused; 972 char *cb_snapspec; 973 char *cb_bookmark; 974 } destroy_cbdata_t; 975 976 /* 977 * Check for any dependents based on the '-r' or '-R' flags. 978 */ 979 static int 980 destroy_check_dependent(zfs_handle_t *zhp, void *data) 981 { 982 destroy_cbdata_t *cbp = data; 983 const char *tname = zfs_get_name(cbp->cb_target); 984 const char *name = zfs_get_name(zhp); 985 986 if (strncmp(tname, name, strlen(tname)) == 0 && 987 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 988 /* 989 * This is a direct descendant, not a clone somewhere else in 990 * the hierarchy. 991 */ 992 if (cbp->cb_recurse) 993 goto out; 994 995 if (cbp->cb_first) { 996 (void) fprintf(stderr, gettext("cannot destroy '%s': " 997 "%s has children\n"), 998 zfs_get_name(cbp->cb_target), 999 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1000 (void) fprintf(stderr, gettext("use '-r' to destroy " 1001 "the following datasets:\n")); 1002 cbp->cb_first = B_FALSE; 1003 cbp->cb_error = B_TRUE; 1004 } 1005 1006 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1007 } else { 1008 /* 1009 * This is a clone. We only want to report this if the '-r' 1010 * wasn't specified, or the target is a snapshot. 1011 */ 1012 if (!cbp->cb_recurse && 1013 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1014 goto out; 1015 1016 if (cbp->cb_first) { 1017 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1018 "%s has dependent clones\n"), 1019 zfs_get_name(cbp->cb_target), 1020 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1021 (void) fprintf(stderr, gettext("use '-R' to destroy " 1022 "the following datasets:\n")); 1023 cbp->cb_first = B_FALSE; 1024 cbp->cb_error = B_TRUE; 1025 cbp->cb_dryrun = B_TRUE; 1026 } 1027 1028 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1029 } 1030 1031 out: 1032 zfs_close(zhp); 1033 return (0); 1034 } 1035 1036 static int 1037 destroy_callback(zfs_handle_t *zhp, void *data) 1038 { 1039 destroy_cbdata_t *cb = data; 1040 const char *name = zfs_get_name(zhp); 1041 1042 if (cb->cb_verbose) { 1043 if (cb->cb_parsable) { 1044 (void) printf("destroy\t%s\n", name); 1045 } else if (cb->cb_dryrun) { 1046 (void) printf(gettext("would destroy %s\n"), 1047 name); 1048 } else { 1049 (void) printf(gettext("will destroy %s\n"), 1050 name); 1051 } 1052 } 1053 1054 /* 1055 * Ignore pools (which we've already flagged as an error before getting 1056 * here). 1057 */ 1058 if (strchr(zfs_get_name(zhp), '/') == NULL && 1059 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1060 zfs_close(zhp); 1061 return (0); 1062 } 1063 if (cb->cb_dryrun) { 1064 zfs_close(zhp); 1065 return (0); 1066 } 1067 1068 /* 1069 * We batch up all contiguous snapshots (even of different 1070 * filesystems) and destroy them with one ioctl. We can't 1071 * simply do all snap deletions and then all fs deletions, 1072 * because we must delete a clone before its origin. 1073 */ 1074 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1075 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1076 } else { 1077 int error = zfs_destroy_snaps_nvl(g_zfs, 1078 cb->cb_batchedsnaps, B_FALSE); 1079 fnvlist_free(cb->cb_batchedsnaps); 1080 cb->cb_batchedsnaps = fnvlist_alloc(); 1081 1082 if (error != 0 || 1083 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1084 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1085 zfs_close(zhp); 1086 return (-1); 1087 } 1088 } 1089 1090 zfs_close(zhp); 1091 return (0); 1092 } 1093 1094 static int 1095 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1096 { 1097 destroy_cbdata_t *cb = arg; 1098 const char *name = zfs_get_name(zhp); 1099 int err = 0; 1100 1101 if (nvlist_exists(cb->cb_nvl, name)) { 1102 if (cb->cb_firstsnap == NULL) 1103 cb->cb_firstsnap = strdup(name); 1104 if (cb->cb_prevsnap != NULL) 1105 free(cb->cb_prevsnap); 1106 /* this snap continues the current range */ 1107 cb->cb_prevsnap = strdup(name); 1108 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1109 nomem(); 1110 if (cb->cb_verbose) { 1111 if (cb->cb_parsable) { 1112 (void) printf("destroy\t%s\n", name); 1113 } else if (cb->cb_dryrun) { 1114 (void) printf(gettext("would destroy %s\n"), 1115 name); 1116 } else { 1117 (void) printf(gettext("will destroy %s\n"), 1118 name); 1119 } 1120 } 1121 } else if (cb->cb_firstsnap != NULL) { 1122 /* end of this range */ 1123 uint64_t used = 0; 1124 err = lzc_snaprange_space(cb->cb_firstsnap, 1125 cb->cb_prevsnap, &used); 1126 cb->cb_snapused += used; 1127 free(cb->cb_firstsnap); 1128 cb->cb_firstsnap = NULL; 1129 free(cb->cb_prevsnap); 1130 cb->cb_prevsnap = NULL; 1131 } 1132 zfs_close(zhp); 1133 return (err); 1134 } 1135 1136 static int 1137 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1138 { 1139 int err = 0; 1140 assert(cb->cb_firstsnap == NULL); 1141 assert(cb->cb_prevsnap == NULL); 1142 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1143 if (cb->cb_firstsnap != NULL) { 1144 uint64_t used = 0; 1145 if (err == 0) { 1146 err = lzc_snaprange_space(cb->cb_firstsnap, 1147 cb->cb_prevsnap, &used); 1148 } 1149 cb->cb_snapused += used; 1150 free(cb->cb_firstsnap); 1151 cb->cb_firstsnap = NULL; 1152 free(cb->cb_prevsnap); 1153 cb->cb_prevsnap = NULL; 1154 } 1155 return (err); 1156 } 1157 1158 static int 1159 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1160 { 1161 destroy_cbdata_t *cb = arg; 1162 int err = 0; 1163 1164 /* Check for clones. */ 1165 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1166 cb->cb_target = zhp; 1167 cb->cb_first = B_TRUE; 1168 err = zfs_iter_dependents(zhp, B_TRUE, 1169 destroy_check_dependent, cb); 1170 } 1171 1172 if (err == 0) { 1173 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1174 nomem(); 1175 } 1176 zfs_close(zhp); 1177 return (err); 1178 } 1179 1180 static int 1181 gather_snapshots(zfs_handle_t *zhp, void *arg) 1182 { 1183 destroy_cbdata_t *cb = arg; 1184 int err = 0; 1185 1186 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1187 if (err == ENOENT) 1188 err = 0; 1189 if (err != 0) 1190 goto out; 1191 1192 if (cb->cb_verbose) { 1193 err = destroy_print_snapshots(zhp, cb); 1194 if (err != 0) 1195 goto out; 1196 } 1197 1198 if (cb->cb_recurse) 1199 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1200 1201 out: 1202 zfs_close(zhp); 1203 return (err); 1204 } 1205 1206 static int 1207 destroy_clones(destroy_cbdata_t *cb) 1208 { 1209 nvpair_t *pair; 1210 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1211 pair != NULL; 1212 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1213 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1214 ZFS_TYPE_SNAPSHOT); 1215 if (zhp != NULL) { 1216 boolean_t defer = cb->cb_defer_destroy; 1217 int err = 0; 1218 1219 /* 1220 * We can't defer destroy non-snapshots, so set it to 1221 * false while destroying the clones. 1222 */ 1223 cb->cb_defer_destroy = B_FALSE; 1224 err = zfs_iter_dependents(zhp, B_FALSE, 1225 destroy_callback, cb); 1226 cb->cb_defer_destroy = defer; 1227 zfs_close(zhp); 1228 if (err != 0) 1229 return (err); 1230 } 1231 } 1232 return (0); 1233 } 1234 1235 static int 1236 zfs_do_destroy(int argc, char **argv) 1237 { 1238 destroy_cbdata_t cb = { 0 }; 1239 int rv = 0; 1240 int err = 0; 1241 int c; 1242 zfs_handle_t *zhp = NULL; 1243 char *at, *pound; 1244 zfs_type_t type = ZFS_TYPE_DATASET; 1245 1246 /* check options */ 1247 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1248 switch (c) { 1249 case 'v': 1250 cb.cb_verbose = B_TRUE; 1251 break; 1252 case 'p': 1253 cb.cb_verbose = B_TRUE; 1254 cb.cb_parsable = B_TRUE; 1255 break; 1256 case 'n': 1257 cb.cb_dryrun = B_TRUE; 1258 break; 1259 case 'd': 1260 cb.cb_defer_destroy = B_TRUE; 1261 type = ZFS_TYPE_SNAPSHOT; 1262 break; 1263 case 'f': 1264 cb.cb_force = B_TRUE; 1265 break; 1266 case 'r': 1267 cb.cb_recurse = B_TRUE; 1268 break; 1269 case 'R': 1270 cb.cb_recurse = B_TRUE; 1271 cb.cb_doclones = B_TRUE; 1272 break; 1273 case '?': 1274 default: 1275 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1276 optopt); 1277 usage(B_FALSE); 1278 } 1279 } 1280 1281 argc -= optind; 1282 argv += optind; 1283 1284 /* check number of arguments */ 1285 if (argc == 0) { 1286 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1287 usage(B_FALSE); 1288 } 1289 if (argc > 1) { 1290 (void) fprintf(stderr, gettext("too many arguments\n")); 1291 usage(B_FALSE); 1292 } 1293 1294 at = strchr(argv[0], '@'); 1295 pound = strchr(argv[0], '#'); 1296 if (at != NULL) { 1297 1298 /* Build the list of snaps to destroy in cb_nvl. */ 1299 cb.cb_nvl = fnvlist_alloc(); 1300 1301 *at = '\0'; 1302 zhp = zfs_open(g_zfs, argv[0], 1303 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1304 if (zhp == NULL) 1305 return (1); 1306 1307 cb.cb_snapspec = at + 1; 1308 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1309 cb.cb_error) { 1310 rv = 1; 1311 goto out; 1312 } 1313 1314 if (nvlist_empty(cb.cb_nvl)) { 1315 (void) fprintf(stderr, gettext("could not find any " 1316 "snapshots to destroy; check snapshot names.\n")); 1317 rv = 1; 1318 goto out; 1319 } 1320 1321 if (cb.cb_verbose) { 1322 char buf[16]; 1323 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1324 if (cb.cb_parsable) { 1325 (void) printf("reclaim\t%llu\n", 1326 cb.cb_snapused); 1327 } else if (cb.cb_dryrun) { 1328 (void) printf(gettext("would reclaim %s\n"), 1329 buf); 1330 } else { 1331 (void) printf(gettext("will reclaim %s\n"), 1332 buf); 1333 } 1334 } 1335 1336 if (!cb.cb_dryrun) { 1337 if (cb.cb_doclones) { 1338 cb.cb_batchedsnaps = fnvlist_alloc(); 1339 err = destroy_clones(&cb); 1340 if (err == 0) { 1341 err = zfs_destroy_snaps_nvl(g_zfs, 1342 cb.cb_batchedsnaps, B_FALSE); 1343 } 1344 if (err != 0) { 1345 rv = 1; 1346 goto out; 1347 } 1348 } 1349 if (err == 0) { 1350 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1351 cb.cb_defer_destroy); 1352 } 1353 } 1354 1355 if (err != 0) 1356 rv = 1; 1357 } else if (pound != NULL) { 1358 int err; 1359 nvlist_t *nvl; 1360 1361 if (cb.cb_dryrun) { 1362 (void) fprintf(stderr, 1363 "dryrun is not supported with bookmark\n"); 1364 return (-1); 1365 } 1366 1367 if (cb.cb_defer_destroy) { 1368 (void) fprintf(stderr, 1369 "defer destroy is not supported with bookmark\n"); 1370 return (-1); 1371 } 1372 1373 if (cb.cb_recurse) { 1374 (void) fprintf(stderr, 1375 "recursive is not supported with bookmark\n"); 1376 return (-1); 1377 } 1378 1379 if (!zfs_bookmark_exists(argv[0])) { 1380 (void) fprintf(stderr, gettext("bookmark '%s' " 1381 "does not exist.\n"), argv[0]); 1382 return (1); 1383 } 1384 1385 nvl = fnvlist_alloc(); 1386 fnvlist_add_boolean(nvl, argv[0]); 1387 1388 err = lzc_destroy_bookmarks(nvl, NULL); 1389 if (err != 0) { 1390 (void) zfs_standard_error(g_zfs, err, 1391 "cannot destroy bookmark"); 1392 } 1393 1394 nvlist_free(cb.cb_nvl); 1395 1396 return (err); 1397 } else { 1398 /* Open the given dataset */ 1399 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1400 return (1); 1401 1402 cb.cb_target = zhp; 1403 1404 /* 1405 * Perform an explicit check for pools before going any further. 1406 */ 1407 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1408 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1409 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1410 "operation does not apply to pools\n"), 1411 zfs_get_name(zhp)); 1412 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1413 "%s' to destroy all datasets in the pool\n"), 1414 zfs_get_name(zhp)); 1415 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1416 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1417 rv = 1; 1418 goto out; 1419 } 1420 1421 /* 1422 * Check for any dependents and/or clones. 1423 */ 1424 cb.cb_first = B_TRUE; 1425 if (!cb.cb_doclones && 1426 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1427 &cb) != 0) { 1428 rv = 1; 1429 goto out; 1430 } 1431 1432 if (cb.cb_error) { 1433 rv = 1; 1434 goto out; 1435 } 1436 1437 cb.cb_batchedsnaps = fnvlist_alloc(); 1438 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1439 &cb) != 0) { 1440 rv = 1; 1441 goto out; 1442 } 1443 1444 /* 1445 * Do the real thing. The callback will close the 1446 * handle regardless of whether it succeeds or not. 1447 */ 1448 err = destroy_callback(zhp, &cb); 1449 zhp = NULL; 1450 if (err == 0) { 1451 err = zfs_destroy_snaps_nvl(g_zfs, 1452 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1453 } 1454 if (err != 0) 1455 rv = 1; 1456 } 1457 1458 out: 1459 fnvlist_free(cb.cb_batchedsnaps); 1460 fnvlist_free(cb.cb_nvl); 1461 if (zhp != NULL) 1462 zfs_close(zhp); 1463 return (rv); 1464 } 1465 1466 static boolean_t 1467 is_recvd_column(zprop_get_cbdata_t *cbp) 1468 { 1469 int i; 1470 zfs_get_column_t col; 1471 1472 for (i = 0; i < ZFS_GET_NCOLS && 1473 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1474 if (col == GET_COL_RECVD) 1475 return (B_TRUE); 1476 return (B_FALSE); 1477 } 1478 1479 /* 1480 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1481 * < all | property[,property]... > < fs | snap | vol > ... 1482 * 1483 * -r recurse over any child datasets 1484 * -H scripted mode. Headers are stripped, and fields are separated 1485 * by tabs instead of spaces. 1486 * -o Set of fields to display. One of "name,property,value, 1487 * received,source". Default is "name,property,value,source". 1488 * "all" is an alias for all five. 1489 * -s Set of sources to allow. One of 1490 * "local,default,inherited,received,temporary,none". Default is 1491 * all six. 1492 * -p Display values in parsable (literal) format. 1493 * 1494 * Prints properties for the given datasets. The user can control which 1495 * columns to display as well as which property types to allow. 1496 */ 1497 1498 /* 1499 * Invoked to display the properties for a single dataset. 1500 */ 1501 static int 1502 get_callback(zfs_handle_t *zhp, void *data) 1503 { 1504 char buf[ZFS_MAXPROPLEN]; 1505 char rbuf[ZFS_MAXPROPLEN]; 1506 zprop_source_t sourcetype; 1507 char source[ZFS_MAX_DATASET_NAME_LEN]; 1508 zprop_get_cbdata_t *cbp = data; 1509 nvlist_t *user_props = zfs_get_user_props(zhp); 1510 zprop_list_t *pl = cbp->cb_proplist; 1511 nvlist_t *propval; 1512 char *strval; 1513 char *sourceval; 1514 boolean_t received = is_recvd_column(cbp); 1515 1516 for (; pl != NULL; pl = pl->pl_next) { 1517 char *recvdval = NULL; 1518 /* 1519 * Skip the special fake placeholder. This will also skip over 1520 * the name property when 'all' is specified. 1521 */ 1522 if (pl->pl_prop == ZFS_PROP_NAME && 1523 pl == cbp->cb_proplist) 1524 continue; 1525 1526 if (pl->pl_prop != ZPROP_INVAL) { 1527 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1528 sizeof (buf), &sourcetype, source, 1529 sizeof (source), 1530 cbp->cb_literal) != 0) { 1531 if (pl->pl_all) 1532 continue; 1533 if (!zfs_prop_valid_for_type(pl->pl_prop, 1534 ZFS_TYPE_DATASET)) { 1535 (void) fprintf(stderr, 1536 gettext("No such property '%s'\n"), 1537 zfs_prop_to_name(pl->pl_prop)); 1538 continue; 1539 } 1540 sourcetype = ZPROP_SRC_NONE; 1541 (void) strlcpy(buf, "-", sizeof (buf)); 1542 } 1543 1544 if (received && (zfs_prop_get_recvd(zhp, 1545 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1546 cbp->cb_literal) == 0)) 1547 recvdval = rbuf; 1548 1549 zprop_print_one_property(zfs_get_name(zhp), cbp, 1550 zfs_prop_to_name(pl->pl_prop), 1551 buf, sourcetype, source, recvdval); 1552 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1553 sourcetype = ZPROP_SRC_LOCAL; 1554 1555 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1556 buf, sizeof (buf), cbp->cb_literal) != 0) { 1557 sourcetype = ZPROP_SRC_NONE; 1558 (void) strlcpy(buf, "-", sizeof (buf)); 1559 } 1560 1561 zprop_print_one_property(zfs_get_name(zhp), cbp, 1562 pl->pl_user_prop, buf, sourcetype, source, NULL); 1563 } else if (zfs_prop_written(pl->pl_user_prop)) { 1564 sourcetype = ZPROP_SRC_LOCAL; 1565 1566 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1567 buf, sizeof (buf), cbp->cb_literal) != 0) { 1568 sourcetype = ZPROP_SRC_NONE; 1569 (void) strlcpy(buf, "-", sizeof (buf)); 1570 } 1571 1572 zprop_print_one_property(zfs_get_name(zhp), cbp, 1573 pl->pl_user_prop, buf, sourcetype, source, NULL); 1574 } else { 1575 if (nvlist_lookup_nvlist(user_props, 1576 pl->pl_user_prop, &propval) != 0) { 1577 if (pl->pl_all) 1578 continue; 1579 sourcetype = ZPROP_SRC_NONE; 1580 strval = "-"; 1581 } else { 1582 verify(nvlist_lookup_string(propval, 1583 ZPROP_VALUE, &strval) == 0); 1584 verify(nvlist_lookup_string(propval, 1585 ZPROP_SOURCE, &sourceval) == 0); 1586 1587 if (strcmp(sourceval, 1588 zfs_get_name(zhp)) == 0) { 1589 sourcetype = ZPROP_SRC_LOCAL; 1590 } else if (strcmp(sourceval, 1591 ZPROP_SOURCE_VAL_RECVD) == 0) { 1592 sourcetype = ZPROP_SRC_RECEIVED; 1593 } else { 1594 sourcetype = ZPROP_SRC_INHERITED; 1595 (void) strlcpy(source, 1596 sourceval, sizeof (source)); 1597 } 1598 } 1599 1600 if (received && (zfs_prop_get_recvd(zhp, 1601 pl->pl_user_prop, rbuf, sizeof (rbuf), 1602 cbp->cb_literal) == 0)) 1603 recvdval = rbuf; 1604 1605 zprop_print_one_property(zfs_get_name(zhp), cbp, 1606 pl->pl_user_prop, strval, sourcetype, 1607 source, recvdval); 1608 } 1609 } 1610 1611 return (0); 1612 } 1613 1614 static int 1615 zfs_do_get(int argc, char **argv) 1616 { 1617 zprop_get_cbdata_t cb = { 0 }; 1618 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1619 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1620 char *value, *fields; 1621 int ret = 0; 1622 int limit = 0; 1623 zprop_list_t fake_name = { 0 }; 1624 1625 /* 1626 * Set up default columns and sources. 1627 */ 1628 cb.cb_sources = ZPROP_SRC_ALL; 1629 cb.cb_columns[0] = GET_COL_NAME; 1630 cb.cb_columns[1] = GET_COL_PROPERTY; 1631 cb.cb_columns[2] = GET_COL_VALUE; 1632 cb.cb_columns[3] = GET_COL_SOURCE; 1633 cb.cb_type = ZFS_TYPE_DATASET; 1634 1635 /* check options */ 1636 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1637 switch (c) { 1638 case 'p': 1639 cb.cb_literal = B_TRUE; 1640 break; 1641 case 'd': 1642 limit = parse_depth(optarg, &flags); 1643 break; 1644 case 'r': 1645 flags |= ZFS_ITER_RECURSE; 1646 break; 1647 case 'H': 1648 cb.cb_scripted = B_TRUE; 1649 break; 1650 case ':': 1651 (void) fprintf(stderr, gettext("missing argument for " 1652 "'%c' option\n"), optopt); 1653 usage(B_FALSE); 1654 break; 1655 case 'o': 1656 /* 1657 * Process the set of columns to display. We zero out 1658 * the structure to give us a blank slate. 1659 */ 1660 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1661 i = 0; 1662 while (*optarg != '\0') { 1663 static char *col_subopts[] = 1664 { "name", "property", "value", "received", 1665 "source", "all", NULL }; 1666 1667 if (i == ZFS_GET_NCOLS) { 1668 (void) fprintf(stderr, gettext("too " 1669 "many fields given to -o " 1670 "option\n")); 1671 usage(B_FALSE); 1672 } 1673 1674 switch (getsubopt(&optarg, col_subopts, 1675 &value)) { 1676 case 0: 1677 cb.cb_columns[i++] = GET_COL_NAME; 1678 break; 1679 case 1: 1680 cb.cb_columns[i++] = GET_COL_PROPERTY; 1681 break; 1682 case 2: 1683 cb.cb_columns[i++] = GET_COL_VALUE; 1684 break; 1685 case 3: 1686 cb.cb_columns[i++] = GET_COL_RECVD; 1687 flags |= ZFS_ITER_RECVD_PROPS; 1688 break; 1689 case 4: 1690 cb.cb_columns[i++] = GET_COL_SOURCE; 1691 break; 1692 case 5: 1693 if (i > 0) { 1694 (void) fprintf(stderr, 1695 gettext("\"all\" conflicts " 1696 "with specific fields " 1697 "given to -o option\n")); 1698 usage(B_FALSE); 1699 } 1700 cb.cb_columns[0] = GET_COL_NAME; 1701 cb.cb_columns[1] = GET_COL_PROPERTY; 1702 cb.cb_columns[2] = GET_COL_VALUE; 1703 cb.cb_columns[3] = GET_COL_RECVD; 1704 cb.cb_columns[4] = GET_COL_SOURCE; 1705 flags |= ZFS_ITER_RECVD_PROPS; 1706 i = ZFS_GET_NCOLS; 1707 break; 1708 default: 1709 (void) fprintf(stderr, 1710 gettext("invalid column name " 1711 "'%s'\n"), value); 1712 usage(B_FALSE); 1713 } 1714 } 1715 break; 1716 1717 case 's': 1718 cb.cb_sources = 0; 1719 while (*optarg != '\0') { 1720 static char *source_subopts[] = { 1721 "local", "default", "inherited", 1722 "received", "temporary", "none", 1723 NULL }; 1724 1725 switch (getsubopt(&optarg, source_subopts, 1726 &value)) { 1727 case 0: 1728 cb.cb_sources |= ZPROP_SRC_LOCAL; 1729 break; 1730 case 1: 1731 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1732 break; 1733 case 2: 1734 cb.cb_sources |= ZPROP_SRC_INHERITED; 1735 break; 1736 case 3: 1737 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1738 break; 1739 case 4: 1740 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1741 break; 1742 case 5: 1743 cb.cb_sources |= ZPROP_SRC_NONE; 1744 break; 1745 default: 1746 (void) fprintf(stderr, 1747 gettext("invalid source " 1748 "'%s'\n"), value); 1749 usage(B_FALSE); 1750 } 1751 } 1752 break; 1753 1754 case 't': 1755 types = 0; 1756 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1757 while (*optarg != '\0') { 1758 static char *type_subopts[] = { "filesystem", 1759 "volume", "snapshot", "bookmark", 1760 "all", NULL }; 1761 1762 switch (getsubopt(&optarg, type_subopts, 1763 &value)) { 1764 case 0: 1765 types |= ZFS_TYPE_FILESYSTEM; 1766 break; 1767 case 1: 1768 types |= ZFS_TYPE_VOLUME; 1769 break; 1770 case 2: 1771 types |= ZFS_TYPE_SNAPSHOT; 1772 break; 1773 case 3: 1774 types |= ZFS_TYPE_BOOKMARK; 1775 break; 1776 case 4: 1777 types = ZFS_TYPE_DATASET | 1778 ZFS_TYPE_BOOKMARK; 1779 break; 1780 1781 default: 1782 (void) fprintf(stderr, 1783 gettext("invalid type '%s'\n"), 1784 value); 1785 usage(B_FALSE); 1786 } 1787 } 1788 break; 1789 1790 case '?': 1791 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1792 optopt); 1793 usage(B_FALSE); 1794 } 1795 } 1796 1797 argc -= optind; 1798 argv += optind; 1799 1800 if (argc < 1) { 1801 (void) fprintf(stderr, gettext("missing property " 1802 "argument\n")); 1803 usage(B_FALSE); 1804 } 1805 1806 fields = argv[0]; 1807 1808 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1809 != 0) 1810 usage(B_FALSE); 1811 1812 argc--; 1813 argv++; 1814 1815 /* 1816 * As part of zfs_expand_proplist(), we keep track of the maximum column 1817 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1818 * need to know the maximum name length. However, the user likely did 1819 * not specify 'name' as one of the properties to fetch, so we need to 1820 * make sure we always include at least this property for 1821 * print_get_headers() to work properly. 1822 */ 1823 if (cb.cb_proplist != NULL) { 1824 fake_name.pl_prop = ZFS_PROP_NAME; 1825 fake_name.pl_width = strlen(gettext("NAME")); 1826 fake_name.pl_next = cb.cb_proplist; 1827 cb.cb_proplist = &fake_name; 1828 } 1829 1830 cb.cb_first = B_TRUE; 1831 1832 /* run for each object */ 1833 ret = zfs_for_each(argc, argv, flags, types, NULL, 1834 &cb.cb_proplist, limit, get_callback, &cb); 1835 1836 if (cb.cb_proplist == &fake_name) 1837 zprop_free_list(fake_name.pl_next); 1838 else 1839 zprop_free_list(cb.cb_proplist); 1840 1841 return (ret); 1842 } 1843 1844 /* 1845 * inherit [-rS] <property> <fs|vol> ... 1846 * 1847 * -r Recurse over all children 1848 * -S Revert to received value, if any 1849 * 1850 * For each dataset specified on the command line, inherit the given property 1851 * from its parent. Inheriting a property at the pool level will cause it to 1852 * use the default value. The '-r' flag will recurse over all children, and is 1853 * useful for setting a property on a hierarchy-wide basis, regardless of any 1854 * local modifications for each dataset. 1855 */ 1856 1857 typedef struct inherit_cbdata { 1858 const char *cb_propname; 1859 boolean_t cb_received; 1860 } inherit_cbdata_t; 1861 1862 static int 1863 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1864 { 1865 inherit_cbdata_t *cb = data; 1866 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1867 1868 /* 1869 * If we're doing it recursively, then ignore properties that 1870 * are not valid for this type of dataset. 1871 */ 1872 if (prop != ZPROP_INVAL && 1873 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1874 return (0); 1875 1876 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1877 } 1878 1879 static int 1880 inherit_cb(zfs_handle_t *zhp, void *data) 1881 { 1882 inherit_cbdata_t *cb = data; 1883 1884 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1885 } 1886 1887 static int 1888 zfs_do_inherit(int argc, char **argv) 1889 { 1890 int c; 1891 zfs_prop_t prop; 1892 inherit_cbdata_t cb = { 0 }; 1893 char *propname; 1894 int ret = 0; 1895 int flags = 0; 1896 boolean_t received = B_FALSE; 1897 1898 /* check options */ 1899 while ((c = getopt(argc, argv, "rS")) != -1) { 1900 switch (c) { 1901 case 'r': 1902 flags |= ZFS_ITER_RECURSE; 1903 break; 1904 case 'S': 1905 received = B_TRUE; 1906 break; 1907 case '?': 1908 default: 1909 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1910 optopt); 1911 usage(B_FALSE); 1912 } 1913 } 1914 1915 argc -= optind; 1916 argv += optind; 1917 1918 /* check number of arguments */ 1919 if (argc < 1) { 1920 (void) fprintf(stderr, gettext("missing property argument\n")); 1921 usage(B_FALSE); 1922 } 1923 if (argc < 2) { 1924 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1925 usage(B_FALSE); 1926 } 1927 1928 propname = argv[0]; 1929 argc--; 1930 argv++; 1931 1932 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1933 if (zfs_prop_readonly(prop)) { 1934 (void) fprintf(stderr, gettext( 1935 "%s property is read-only\n"), 1936 propname); 1937 return (1); 1938 } 1939 if (!zfs_prop_inheritable(prop) && !received) { 1940 (void) fprintf(stderr, gettext("'%s' property cannot " 1941 "be inherited\n"), propname); 1942 if (prop == ZFS_PROP_QUOTA || 1943 prop == ZFS_PROP_RESERVATION || 1944 prop == ZFS_PROP_REFQUOTA || 1945 prop == ZFS_PROP_REFRESERVATION) { 1946 (void) fprintf(stderr, gettext("use 'zfs set " 1947 "%s=none' to clear\n"), propname); 1948 (void) fprintf(stderr, gettext("use 'zfs " 1949 "inherit -S %s' to revert to received " 1950 "value\n"), propname); 1951 } 1952 return (1); 1953 } 1954 if (received && (prop == ZFS_PROP_VOLSIZE || 1955 prop == ZFS_PROP_VERSION)) { 1956 (void) fprintf(stderr, gettext("'%s' property cannot " 1957 "be reverted to a received value\n"), propname); 1958 return (1); 1959 } 1960 } else if (!zfs_prop_user(propname)) { 1961 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1962 propname); 1963 usage(B_FALSE); 1964 } 1965 1966 cb.cb_propname = propname; 1967 cb.cb_received = received; 1968 1969 if (flags & ZFS_ITER_RECURSE) { 1970 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1971 NULL, NULL, 0, inherit_recurse_cb, &cb); 1972 } else { 1973 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1974 NULL, NULL, 0, inherit_cb, &cb); 1975 } 1976 1977 return (ret); 1978 } 1979 1980 typedef struct upgrade_cbdata { 1981 uint64_t cb_numupgraded; 1982 uint64_t cb_numsamegraded; 1983 uint64_t cb_numfailed; 1984 uint64_t cb_version; 1985 boolean_t cb_newer; 1986 boolean_t cb_foundone; 1987 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1988 } upgrade_cbdata_t; 1989 1990 static int 1991 same_pool(zfs_handle_t *zhp, const char *name) 1992 { 1993 int len1 = strcspn(name, "/@"); 1994 const char *zhname = zfs_get_name(zhp); 1995 int len2 = strcspn(zhname, "/@"); 1996 1997 if (len1 != len2) 1998 return (B_FALSE); 1999 return (strncmp(name, zhname, len1) == 0); 2000 } 2001 2002 static int 2003 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2004 { 2005 upgrade_cbdata_t *cb = data; 2006 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2007 2008 /* list if it's old/new */ 2009 if ((!cb->cb_newer && version < ZPL_VERSION) || 2010 (cb->cb_newer && version > ZPL_VERSION)) { 2011 char *str; 2012 if (cb->cb_newer) { 2013 str = gettext("The following filesystems are " 2014 "formatted using a newer software version and\n" 2015 "cannot be accessed on the current system.\n\n"); 2016 } else { 2017 str = gettext("The following filesystems are " 2018 "out of date, and can be upgraded. After being\n" 2019 "upgraded, these filesystems (and any 'zfs send' " 2020 "streams generated from\n" 2021 "subsequent snapshots) will no longer be " 2022 "accessible by older software versions.\n\n"); 2023 } 2024 2025 if (!cb->cb_foundone) { 2026 (void) puts(str); 2027 (void) printf(gettext("VER FILESYSTEM\n")); 2028 (void) printf(gettext("--- ------------\n")); 2029 cb->cb_foundone = B_TRUE; 2030 } 2031 2032 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2033 } 2034 2035 return (0); 2036 } 2037 2038 static int 2039 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2040 { 2041 upgrade_cbdata_t *cb = data; 2042 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2043 int needed_spa_version; 2044 int spa_version; 2045 2046 if (zfs_spa_version(zhp, &spa_version) < 0) 2047 return (-1); 2048 2049 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2050 2051 if (needed_spa_version < 0) 2052 return (-1); 2053 2054 if (spa_version < needed_spa_version) { 2055 /* can't upgrade */ 2056 (void) printf(gettext("%s: can not be " 2057 "upgraded; the pool version needs to first " 2058 "be upgraded\nto version %d\n\n"), 2059 zfs_get_name(zhp), needed_spa_version); 2060 cb->cb_numfailed++; 2061 return (0); 2062 } 2063 2064 /* upgrade */ 2065 if (version < cb->cb_version) { 2066 char verstr[16]; 2067 (void) snprintf(verstr, sizeof (verstr), 2068 "%llu", cb->cb_version); 2069 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2070 /* 2071 * If they did "zfs upgrade -a", then we could 2072 * be doing ioctls to different pools. We need 2073 * to log this history once to each pool, and bypass 2074 * the normal history logging that happens in main(). 2075 */ 2076 (void) zpool_log_history(g_zfs, history_str); 2077 log_history = B_FALSE; 2078 } 2079 if (zfs_prop_set(zhp, "version", verstr) == 0) 2080 cb->cb_numupgraded++; 2081 else 2082 cb->cb_numfailed++; 2083 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2084 } else if (version > cb->cb_version) { 2085 /* can't downgrade */ 2086 (void) printf(gettext("%s: can not be downgraded; " 2087 "it is already at version %u\n"), 2088 zfs_get_name(zhp), version); 2089 cb->cb_numfailed++; 2090 } else { 2091 cb->cb_numsamegraded++; 2092 } 2093 return (0); 2094 } 2095 2096 /* 2097 * zfs upgrade 2098 * zfs upgrade -v 2099 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2100 */ 2101 static int 2102 zfs_do_upgrade(int argc, char **argv) 2103 { 2104 boolean_t all = B_FALSE; 2105 boolean_t showversions = B_FALSE; 2106 int ret = 0; 2107 upgrade_cbdata_t cb = { 0 }; 2108 char c; 2109 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2110 2111 /* check options */ 2112 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2113 switch (c) { 2114 case 'r': 2115 flags |= ZFS_ITER_RECURSE; 2116 break; 2117 case 'v': 2118 showversions = B_TRUE; 2119 break; 2120 case 'V': 2121 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2122 optarg, &cb.cb_version) != 0) { 2123 (void) fprintf(stderr, 2124 gettext("invalid version %s\n"), optarg); 2125 usage(B_FALSE); 2126 } 2127 break; 2128 case 'a': 2129 all = B_TRUE; 2130 break; 2131 case '?': 2132 default: 2133 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2134 optopt); 2135 usage(B_FALSE); 2136 } 2137 } 2138 2139 argc -= optind; 2140 argv += optind; 2141 2142 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2143 usage(B_FALSE); 2144 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2145 cb.cb_version || argc)) 2146 usage(B_FALSE); 2147 if ((all || argc) && (showversions)) 2148 usage(B_FALSE); 2149 if (all && argc) 2150 usage(B_FALSE); 2151 2152 if (showversions) { 2153 /* Show info on available versions. */ 2154 (void) printf(gettext("The following filesystem versions are " 2155 "supported:\n\n")); 2156 (void) printf(gettext("VER DESCRIPTION\n")); 2157 (void) printf("--- -----------------------------------------" 2158 "---------------\n"); 2159 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2160 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2161 (void) printf(gettext(" 3 Case insensitive and filesystem " 2162 "user identifier (FUID)\n")); 2163 (void) printf(gettext(" 4 userquota, groupquota " 2164 "properties\n")); 2165 (void) printf(gettext(" 5 System attributes\n")); 2166 (void) printf(gettext("\nFor more information on a particular " 2167 "version, including supported releases,\n")); 2168 (void) printf("see the ZFS Administration Guide.\n\n"); 2169 ret = 0; 2170 } else if (argc || all) { 2171 /* Upgrade filesystems */ 2172 if (cb.cb_version == 0) 2173 cb.cb_version = ZPL_VERSION; 2174 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2175 NULL, NULL, 0, upgrade_set_callback, &cb); 2176 (void) printf(gettext("%llu filesystems upgraded\n"), 2177 cb.cb_numupgraded); 2178 if (cb.cb_numsamegraded) { 2179 (void) printf(gettext("%llu filesystems already at " 2180 "this version\n"), 2181 cb.cb_numsamegraded); 2182 } 2183 if (cb.cb_numfailed != 0) 2184 ret = 1; 2185 } else { 2186 /* List old-version filesytems */ 2187 boolean_t found; 2188 (void) printf(gettext("This system is currently running " 2189 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2190 2191 flags |= ZFS_ITER_RECURSE; 2192 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2193 NULL, NULL, 0, upgrade_list_callback, &cb); 2194 2195 found = cb.cb_foundone; 2196 cb.cb_foundone = B_FALSE; 2197 cb.cb_newer = B_TRUE; 2198 2199 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2200 NULL, NULL, 0, upgrade_list_callback, &cb); 2201 2202 if (!cb.cb_foundone && !found) { 2203 (void) printf(gettext("All filesystems are " 2204 "formatted with the current version.\n")); 2205 } 2206 } 2207 2208 return (ret); 2209 } 2210 2211 /* 2212 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2213 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2214 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2215 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2216 * 2217 * -H Scripted mode; elide headers and separate columns by tabs. 2218 * -i Translate SID to POSIX ID. 2219 * -n Print numeric ID instead of user/group name. 2220 * -o Control which fields to display. 2221 * -p Use exact (parsable) numeric output. 2222 * -s Specify sort columns, descending order. 2223 * -S Specify sort columns, ascending order. 2224 * -t Control which object types to display. 2225 * 2226 * Displays space consumed by, and quotas on, each user in the specified 2227 * filesystem or snapshot. 2228 */ 2229 2230 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2231 enum us_field_types { 2232 USFIELD_TYPE, 2233 USFIELD_NAME, 2234 USFIELD_USED, 2235 USFIELD_QUOTA 2236 }; 2237 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2238 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2239 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2240 2241 #define USTYPE_PSX_GRP (1 << 0) 2242 #define USTYPE_PSX_USR (1 << 1) 2243 #define USTYPE_SMB_GRP (1 << 2) 2244 #define USTYPE_SMB_USR (1 << 3) 2245 #define USTYPE_ALL \ 2246 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2247 2248 static int us_type_bits[] = { 2249 USTYPE_PSX_GRP, 2250 USTYPE_PSX_USR, 2251 USTYPE_SMB_GRP, 2252 USTYPE_SMB_USR, 2253 USTYPE_ALL 2254 }; 2255 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2256 "smbuser", "all" }; 2257 2258 typedef struct us_node { 2259 nvlist_t *usn_nvl; 2260 uu_avl_node_t usn_avlnode; 2261 uu_list_node_t usn_listnode; 2262 } us_node_t; 2263 2264 typedef struct us_cbdata { 2265 nvlist_t **cb_nvlp; 2266 uu_avl_pool_t *cb_avl_pool; 2267 uu_avl_t *cb_avl; 2268 boolean_t cb_numname; 2269 boolean_t cb_nicenum; 2270 boolean_t cb_sid2posix; 2271 zfs_userquota_prop_t cb_prop; 2272 zfs_sort_column_t *cb_sortcol; 2273 size_t cb_width[USFIELD_LAST]; 2274 } us_cbdata_t; 2275 2276 static boolean_t us_populated = B_FALSE; 2277 2278 typedef struct { 2279 zfs_sort_column_t *si_sortcol; 2280 boolean_t si_numname; 2281 } us_sort_info_t; 2282 2283 static int 2284 us_field_index(char *field) 2285 { 2286 int i; 2287 2288 for (i = 0; i < USFIELD_LAST; i++) { 2289 if (strcmp(field, us_field_names[i]) == 0) 2290 return (i); 2291 } 2292 2293 return (-1); 2294 } 2295 2296 static int 2297 us_compare(const void *larg, const void *rarg, void *unused) 2298 { 2299 const us_node_t *l = larg; 2300 const us_node_t *r = rarg; 2301 us_sort_info_t *si = (us_sort_info_t *)unused; 2302 zfs_sort_column_t *sortcol = si->si_sortcol; 2303 boolean_t numname = si->si_numname; 2304 nvlist_t *lnvl = l->usn_nvl; 2305 nvlist_t *rnvl = r->usn_nvl; 2306 int rc = 0; 2307 boolean_t lvb, rvb; 2308 2309 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2310 char *lvstr = ""; 2311 char *rvstr = ""; 2312 uint32_t lv32 = 0; 2313 uint32_t rv32 = 0; 2314 uint64_t lv64 = 0; 2315 uint64_t rv64 = 0; 2316 zfs_prop_t prop = sortcol->sc_prop; 2317 const char *propname = NULL; 2318 boolean_t reverse = sortcol->sc_reverse; 2319 2320 switch (prop) { 2321 case ZFS_PROP_TYPE: 2322 propname = "type"; 2323 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2324 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2325 if (rv32 != lv32) 2326 rc = (rv32 < lv32) ? 1 : -1; 2327 break; 2328 case ZFS_PROP_NAME: 2329 propname = "name"; 2330 if (numname) { 2331 (void) nvlist_lookup_uint64(lnvl, propname, 2332 &lv64); 2333 (void) nvlist_lookup_uint64(rnvl, propname, 2334 &rv64); 2335 if (rv64 != lv64) 2336 rc = (rv64 < lv64) ? 1 : -1; 2337 } else { 2338 (void) nvlist_lookup_string(lnvl, propname, 2339 &lvstr); 2340 (void) nvlist_lookup_string(rnvl, propname, 2341 &rvstr); 2342 rc = strcmp(lvstr, rvstr); 2343 } 2344 break; 2345 case ZFS_PROP_USED: 2346 case ZFS_PROP_QUOTA: 2347 if (!us_populated) 2348 break; 2349 if (prop == ZFS_PROP_USED) 2350 propname = "used"; 2351 else 2352 propname = "quota"; 2353 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2354 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2355 if (rv64 != lv64) 2356 rc = (rv64 < lv64) ? 1 : -1; 2357 break; 2358 2359 default: 2360 break; 2361 } 2362 2363 if (rc != 0) { 2364 if (rc < 0) 2365 return (reverse ? 1 : -1); 2366 else 2367 return (reverse ? -1 : 1); 2368 } 2369 } 2370 2371 /* 2372 * If entries still seem to be the same, check if they are of the same 2373 * type (smbentity is added only if we are doing SID to POSIX ID 2374 * translation where we can have duplicate type/name combinations). 2375 */ 2376 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2377 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2378 lvb != rvb) 2379 return (lvb < rvb ? -1 : 1); 2380 2381 return (0); 2382 } 2383 2384 static inline const char * 2385 us_type2str(unsigned field_type) 2386 { 2387 switch (field_type) { 2388 case USTYPE_PSX_USR: 2389 return ("POSIX User"); 2390 case USTYPE_PSX_GRP: 2391 return ("POSIX Group"); 2392 case USTYPE_SMB_USR: 2393 return ("SMB User"); 2394 case USTYPE_SMB_GRP: 2395 return ("SMB Group"); 2396 default: 2397 return ("Undefined"); 2398 } 2399 } 2400 2401 static int 2402 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2403 { 2404 us_cbdata_t *cb = (us_cbdata_t *)arg; 2405 zfs_userquota_prop_t prop = cb->cb_prop; 2406 char *name = NULL; 2407 char *propname; 2408 char sizebuf[32]; 2409 us_node_t *node; 2410 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2411 uu_avl_t *avl = cb->cb_avl; 2412 uu_avl_index_t idx; 2413 nvlist_t *props; 2414 us_node_t *n; 2415 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2416 unsigned type = 0; 2417 const char *typestr; 2418 size_t namelen; 2419 size_t typelen; 2420 size_t sizelen; 2421 int typeidx, nameidx, sizeidx; 2422 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2423 boolean_t smbentity = B_FALSE; 2424 2425 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2426 nomem(); 2427 node = safe_malloc(sizeof (us_node_t)); 2428 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2429 node->usn_nvl = props; 2430 2431 if (domain != NULL && domain[0] != '\0') { 2432 /* SMB */ 2433 char sid[MAXNAMELEN + 32]; 2434 uid_t id; 2435 int err; 2436 int flag = IDMAP_REQ_FLG_USE_CACHE; 2437 2438 smbentity = B_TRUE; 2439 2440 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2441 2442 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2443 type = USTYPE_SMB_GRP; 2444 err = sid_to_id(sid, B_FALSE, &id); 2445 } else { 2446 type = USTYPE_SMB_USR; 2447 err = sid_to_id(sid, B_TRUE, &id); 2448 } 2449 2450 if (err == 0) { 2451 rid = id; 2452 if (!cb->cb_sid2posix) { 2453 if (type == USTYPE_SMB_USR) { 2454 (void) idmap_getwinnamebyuid(rid, flag, 2455 &name, NULL); 2456 } else { 2457 (void) idmap_getwinnamebygid(rid, flag, 2458 &name, NULL); 2459 } 2460 if (name == NULL) 2461 name = sid; 2462 } 2463 } 2464 } 2465 2466 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2467 /* POSIX or -i */ 2468 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2469 type = USTYPE_PSX_GRP; 2470 if (!cb->cb_numname) { 2471 struct group *g; 2472 2473 if ((g = getgrgid(rid)) != NULL) 2474 name = g->gr_name; 2475 } 2476 } else { 2477 type = USTYPE_PSX_USR; 2478 if (!cb->cb_numname) { 2479 struct passwd *p; 2480 2481 if ((p = getpwuid(rid)) != NULL) 2482 name = p->pw_name; 2483 } 2484 } 2485 } 2486 2487 /* 2488 * Make sure that the type/name combination is unique when doing 2489 * SID to POSIX ID translation (hence changing the type from SMB to 2490 * POSIX). 2491 */ 2492 if (cb->cb_sid2posix && 2493 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2494 nomem(); 2495 2496 /* Calculate/update width of TYPE field */ 2497 typestr = us_type2str(type); 2498 typelen = strlen(gettext(typestr)); 2499 typeidx = us_field_index("type"); 2500 if (typelen > cb->cb_width[typeidx]) 2501 cb->cb_width[typeidx] = typelen; 2502 if (nvlist_add_uint32(props, "type", type) != 0) 2503 nomem(); 2504 2505 /* Calculate/update width of NAME field */ 2506 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2507 if (nvlist_add_uint64(props, "name", rid) != 0) 2508 nomem(); 2509 namelen = snprintf(NULL, 0, "%u", rid); 2510 } else { 2511 if (nvlist_add_string(props, "name", name) != 0) 2512 nomem(); 2513 namelen = strlen(name); 2514 } 2515 nameidx = us_field_index("name"); 2516 if (namelen > cb->cb_width[nameidx]) 2517 cb->cb_width[nameidx] = namelen; 2518 2519 /* 2520 * Check if this type/name combination is in the list and update it; 2521 * otherwise add new node to the list. 2522 */ 2523 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2524 uu_avl_insert(avl, node, idx); 2525 } else { 2526 nvlist_free(props); 2527 free(node); 2528 node = n; 2529 props = node->usn_nvl; 2530 } 2531 2532 /* Calculate/update width of USED/QUOTA fields */ 2533 if (cb->cb_nicenum) 2534 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2535 else 2536 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2537 sizelen = strlen(sizebuf); 2538 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2539 propname = "used"; 2540 if (!nvlist_exists(props, "quota")) 2541 (void) nvlist_add_uint64(props, "quota", 0); 2542 } else { 2543 propname = "quota"; 2544 if (!nvlist_exists(props, "used")) 2545 (void) nvlist_add_uint64(props, "used", 0); 2546 } 2547 sizeidx = us_field_index(propname); 2548 if (sizelen > cb->cb_width[sizeidx]) 2549 cb->cb_width[sizeidx] = sizelen; 2550 2551 if (nvlist_add_uint64(props, propname, space) != 0) 2552 nomem(); 2553 2554 return (0); 2555 } 2556 2557 static void 2558 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2559 size_t *width, us_node_t *node) 2560 { 2561 nvlist_t *nvl = node->usn_nvl; 2562 char valstr[MAXNAMELEN]; 2563 boolean_t first = B_TRUE; 2564 int cfield = 0; 2565 int field; 2566 uint32_t ustype; 2567 2568 /* Check type */ 2569 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2570 if (!(ustype & types)) 2571 return; 2572 2573 while ((field = fields[cfield]) != USFIELD_LAST) { 2574 nvpair_t *nvp = NULL; 2575 data_type_t type; 2576 uint32_t val32; 2577 uint64_t val64; 2578 char *strval = NULL; 2579 2580 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2581 if (strcmp(nvpair_name(nvp), 2582 us_field_names[field]) == 0) 2583 break; 2584 } 2585 2586 type = nvpair_type(nvp); 2587 switch (type) { 2588 case DATA_TYPE_UINT32: 2589 (void) nvpair_value_uint32(nvp, &val32); 2590 break; 2591 case DATA_TYPE_UINT64: 2592 (void) nvpair_value_uint64(nvp, &val64); 2593 break; 2594 case DATA_TYPE_STRING: 2595 (void) nvpair_value_string(nvp, &strval); 2596 break; 2597 default: 2598 (void) fprintf(stderr, "invalid data type\n"); 2599 } 2600 2601 switch (field) { 2602 case USFIELD_TYPE: 2603 strval = (char *)us_type2str(val32); 2604 break; 2605 case USFIELD_NAME: 2606 if (type == DATA_TYPE_UINT64) { 2607 (void) sprintf(valstr, "%llu", val64); 2608 strval = valstr; 2609 } 2610 break; 2611 case USFIELD_USED: 2612 case USFIELD_QUOTA: 2613 if (type == DATA_TYPE_UINT64) { 2614 if (parsable) { 2615 (void) sprintf(valstr, "%llu", val64); 2616 } else { 2617 zfs_nicenum(val64, valstr, 2618 sizeof (valstr)); 2619 } 2620 if (field == USFIELD_QUOTA && 2621 strcmp(valstr, "0") == 0) 2622 strval = "none"; 2623 else 2624 strval = valstr; 2625 } 2626 break; 2627 } 2628 2629 if (!first) { 2630 if (scripted) 2631 (void) printf("\t"); 2632 else 2633 (void) printf(" "); 2634 } 2635 if (scripted) 2636 (void) printf("%s", strval); 2637 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2638 (void) printf("%-*s", width[field], strval); 2639 else 2640 (void) printf("%*s", width[field], strval); 2641 2642 first = B_FALSE; 2643 cfield++; 2644 } 2645 2646 (void) printf("\n"); 2647 } 2648 2649 static void 2650 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2651 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2652 { 2653 us_node_t *node; 2654 const char *col; 2655 int cfield = 0; 2656 int field; 2657 2658 if (!scripted) { 2659 boolean_t first = B_TRUE; 2660 2661 while ((field = fields[cfield]) != USFIELD_LAST) { 2662 col = gettext(us_field_hdr[field]); 2663 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2664 (void) printf(first ? "%-*s" : " %-*s", 2665 width[field], col); 2666 } else { 2667 (void) printf(first ? "%*s" : " %*s", 2668 width[field], col); 2669 } 2670 first = B_FALSE; 2671 cfield++; 2672 } 2673 (void) printf("\n"); 2674 } 2675 2676 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2677 print_us_node(scripted, parsable, fields, types, width, node); 2678 if (rmnode) 2679 nvlist_free(node->usn_nvl); 2680 } 2681 } 2682 2683 static int 2684 zfs_do_userspace(int argc, char **argv) 2685 { 2686 zfs_handle_t *zhp; 2687 zfs_userquota_prop_t p; 2688 uu_avl_pool_t *avl_pool; 2689 uu_avl_t *avl_tree; 2690 uu_avl_walk_t *walk; 2691 char *delim; 2692 char deffields[] = "type,name,used,quota"; 2693 char *ofield = NULL; 2694 char *tfield = NULL; 2695 int cfield = 0; 2696 int fields[256]; 2697 int i; 2698 boolean_t scripted = B_FALSE; 2699 boolean_t prtnum = B_FALSE; 2700 boolean_t parsable = B_FALSE; 2701 boolean_t sid2posix = B_FALSE; 2702 int ret = 0; 2703 int c; 2704 zfs_sort_column_t *sortcol = NULL; 2705 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2706 us_cbdata_t cb; 2707 us_node_t *node; 2708 us_node_t *rmnode; 2709 uu_list_pool_t *listpool; 2710 uu_list_t *list; 2711 uu_avl_index_t idx = 0; 2712 uu_list_index_t idx2 = 0; 2713 2714 if (argc < 2) 2715 usage(B_FALSE); 2716 2717 if (strcmp(argv[0], "groupspace") == 0) 2718 /* Toggle default group types */ 2719 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2720 2721 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2722 switch (c) { 2723 case 'n': 2724 prtnum = B_TRUE; 2725 break; 2726 case 'H': 2727 scripted = B_TRUE; 2728 break; 2729 case 'p': 2730 parsable = B_TRUE; 2731 break; 2732 case 'o': 2733 ofield = optarg; 2734 break; 2735 case 's': 2736 case 'S': 2737 if (zfs_add_sort_column(&sortcol, optarg, 2738 c == 's' ? B_FALSE : B_TRUE) != 0) { 2739 (void) fprintf(stderr, 2740 gettext("invalid field '%s'\n"), optarg); 2741 usage(B_FALSE); 2742 } 2743 break; 2744 case 't': 2745 tfield = optarg; 2746 break; 2747 case 'i': 2748 sid2posix = B_TRUE; 2749 break; 2750 case ':': 2751 (void) fprintf(stderr, gettext("missing argument for " 2752 "'%c' option\n"), optopt); 2753 usage(B_FALSE); 2754 break; 2755 case '?': 2756 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2757 optopt); 2758 usage(B_FALSE); 2759 } 2760 } 2761 2762 argc -= optind; 2763 argv += optind; 2764 2765 if (argc < 1) { 2766 (void) fprintf(stderr, gettext("missing dataset name\n")); 2767 usage(B_FALSE); 2768 } 2769 if (argc > 1) { 2770 (void) fprintf(stderr, gettext("too many arguments\n")); 2771 usage(B_FALSE); 2772 } 2773 2774 /* Use default output fields if not specified using -o */ 2775 if (ofield == NULL) 2776 ofield = deffields; 2777 do { 2778 if ((delim = strchr(ofield, ',')) != NULL) 2779 *delim = '\0'; 2780 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2781 (void) fprintf(stderr, gettext("invalid type '%s' " 2782 "for -o option\n"), ofield); 2783 return (-1); 2784 } 2785 if (delim != NULL) 2786 ofield = delim + 1; 2787 } while (delim != NULL); 2788 fields[cfield] = USFIELD_LAST; 2789 2790 /* Override output types (-t option) */ 2791 if (tfield != NULL) { 2792 types = 0; 2793 2794 do { 2795 boolean_t found = B_FALSE; 2796 2797 if ((delim = strchr(tfield, ',')) != NULL) 2798 *delim = '\0'; 2799 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2800 i++) { 2801 if (strcmp(tfield, us_type_names[i]) == 0) { 2802 found = B_TRUE; 2803 types |= us_type_bits[i]; 2804 break; 2805 } 2806 } 2807 if (!found) { 2808 (void) fprintf(stderr, gettext("invalid type " 2809 "'%s' for -t option\n"), tfield); 2810 return (-1); 2811 } 2812 if (delim != NULL) 2813 tfield = delim + 1; 2814 } while (delim != NULL); 2815 } 2816 2817 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2818 return (1); 2819 2820 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2821 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2822 nomem(); 2823 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2824 nomem(); 2825 2826 /* Always add default sorting columns */ 2827 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2828 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2829 2830 cb.cb_sortcol = sortcol; 2831 cb.cb_numname = prtnum; 2832 cb.cb_nicenum = !parsable; 2833 cb.cb_avl_pool = avl_pool; 2834 cb.cb_avl = avl_tree; 2835 cb.cb_sid2posix = sid2posix; 2836 2837 for (i = 0; i < USFIELD_LAST; i++) 2838 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2839 2840 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2841 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2842 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2843 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2844 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2845 continue; 2846 cb.cb_prop = p; 2847 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2848 return (ret); 2849 } 2850 2851 /* Sort the list */ 2852 if ((node = uu_avl_first(avl_tree)) == NULL) 2853 return (0); 2854 2855 us_populated = B_TRUE; 2856 2857 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2858 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2859 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2860 uu_list_node_init(node, &node->usn_listnode, listpool); 2861 2862 while (node != NULL) { 2863 rmnode = node; 2864 node = uu_avl_next(avl_tree, node); 2865 uu_avl_remove(avl_tree, rmnode); 2866 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2867 uu_list_insert(list, rmnode, idx2); 2868 } 2869 2870 for (node = uu_list_first(list); node != NULL; 2871 node = uu_list_next(list, node)) { 2872 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2873 2874 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2875 uu_avl_insert(avl_tree, node, idx); 2876 } 2877 2878 uu_list_destroy(list); 2879 uu_list_pool_destroy(listpool); 2880 2881 /* Print and free node nvlist memory */ 2882 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2883 cb.cb_avl); 2884 2885 zfs_free_sort_columns(sortcol); 2886 2887 /* Clean up the AVL tree */ 2888 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2889 nomem(); 2890 2891 while ((node = uu_avl_walk_next(walk)) != NULL) { 2892 uu_avl_remove(cb.cb_avl, node); 2893 free(node); 2894 } 2895 2896 uu_avl_walk_end(walk); 2897 uu_avl_destroy(avl_tree); 2898 uu_avl_pool_destroy(avl_pool); 2899 2900 return (ret); 2901 } 2902 2903 /* 2904 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2905 * [-t type[,...]] [filesystem|volume|snapshot] ... 2906 * 2907 * -H Scripted mode; elide headers and separate columns by tabs. 2908 * -p Display values in parsable (literal) format. 2909 * -r Recurse over all children. 2910 * -d Limit recursion by depth. 2911 * -o Control which fields to display. 2912 * -s Specify sort columns, descending order. 2913 * -S Specify sort columns, ascending order. 2914 * -t Control which object types to display. 2915 * 2916 * When given no arguments, list all filesystems in the system. 2917 * Otherwise, list the specified datasets, optionally recursing down them if 2918 * '-r' is specified. 2919 */ 2920 typedef struct list_cbdata { 2921 boolean_t cb_first; 2922 boolean_t cb_literal; 2923 boolean_t cb_scripted; 2924 zprop_list_t *cb_proplist; 2925 } list_cbdata_t; 2926 2927 /* 2928 * Given a list of columns to display, output appropriate headers for each one. 2929 */ 2930 static void 2931 print_header(list_cbdata_t *cb) 2932 { 2933 zprop_list_t *pl = cb->cb_proplist; 2934 char headerbuf[ZFS_MAXPROPLEN]; 2935 const char *header; 2936 int i; 2937 boolean_t first = B_TRUE; 2938 boolean_t right_justify; 2939 2940 for (; pl != NULL; pl = pl->pl_next) { 2941 if (!first) { 2942 (void) printf(" "); 2943 } else { 2944 first = B_FALSE; 2945 } 2946 2947 right_justify = B_FALSE; 2948 if (pl->pl_prop != ZPROP_INVAL) { 2949 header = zfs_prop_column_name(pl->pl_prop); 2950 right_justify = zfs_prop_align_right(pl->pl_prop); 2951 } else { 2952 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2953 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2954 headerbuf[i] = '\0'; 2955 header = headerbuf; 2956 } 2957 2958 if (pl->pl_next == NULL && !right_justify) 2959 (void) printf("%s", header); 2960 else if (right_justify) 2961 (void) printf("%*s", pl->pl_width, header); 2962 else 2963 (void) printf("%-*s", pl->pl_width, header); 2964 } 2965 2966 (void) printf("\n"); 2967 } 2968 2969 /* 2970 * Given a dataset and a list of fields, print out all the properties according 2971 * to the described layout. 2972 */ 2973 static void 2974 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2975 { 2976 zprop_list_t *pl = cb->cb_proplist; 2977 boolean_t first = B_TRUE; 2978 char property[ZFS_MAXPROPLEN]; 2979 nvlist_t *userprops = zfs_get_user_props(zhp); 2980 nvlist_t *propval; 2981 char *propstr; 2982 boolean_t right_justify; 2983 2984 for (; pl != NULL; pl = pl->pl_next) { 2985 if (!first) { 2986 if (cb->cb_scripted) 2987 (void) printf("\t"); 2988 else 2989 (void) printf(" "); 2990 } else { 2991 first = B_FALSE; 2992 } 2993 2994 if (pl->pl_prop == ZFS_PROP_NAME) { 2995 (void) strlcpy(property, zfs_get_name(zhp), 2996 sizeof (property)); 2997 propstr = property; 2998 right_justify = zfs_prop_align_right(pl->pl_prop); 2999 } else if (pl->pl_prop != ZPROP_INVAL) { 3000 if (zfs_prop_get(zhp, pl->pl_prop, property, 3001 sizeof (property), NULL, NULL, 0, 3002 cb->cb_literal) != 0) 3003 propstr = "-"; 3004 else 3005 propstr = property; 3006 right_justify = zfs_prop_align_right(pl->pl_prop); 3007 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3008 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3009 property, sizeof (property), cb->cb_literal) != 0) 3010 propstr = "-"; 3011 else 3012 propstr = property; 3013 right_justify = B_TRUE; 3014 } else if (zfs_prop_written(pl->pl_user_prop)) { 3015 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3016 property, sizeof (property), cb->cb_literal) != 0) 3017 propstr = "-"; 3018 else 3019 propstr = property; 3020 right_justify = B_TRUE; 3021 } else { 3022 if (nvlist_lookup_nvlist(userprops, 3023 pl->pl_user_prop, &propval) != 0) 3024 propstr = "-"; 3025 else 3026 verify(nvlist_lookup_string(propval, 3027 ZPROP_VALUE, &propstr) == 0); 3028 right_justify = B_FALSE; 3029 } 3030 3031 /* 3032 * If this is being called in scripted mode, or if this is the 3033 * last column and it is left-justified, don't include a width 3034 * format specifier. 3035 */ 3036 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3037 (void) printf("%s", propstr); 3038 else if (right_justify) 3039 (void) printf("%*s", pl->pl_width, propstr); 3040 else 3041 (void) printf("%-*s", pl->pl_width, propstr); 3042 } 3043 3044 (void) printf("\n"); 3045 } 3046 3047 /* 3048 * Generic callback function to list a dataset or snapshot. 3049 */ 3050 static int 3051 list_callback(zfs_handle_t *zhp, void *data) 3052 { 3053 list_cbdata_t *cbp = data; 3054 3055 if (cbp->cb_first) { 3056 if (!cbp->cb_scripted) 3057 print_header(cbp); 3058 cbp->cb_first = B_FALSE; 3059 } 3060 3061 print_dataset(zhp, cbp); 3062 3063 return (0); 3064 } 3065 3066 static int 3067 zfs_do_list(int argc, char **argv) 3068 { 3069 int c; 3070 static char default_fields[] = 3071 "name,used,available,referenced,mountpoint"; 3072 int types = ZFS_TYPE_DATASET; 3073 boolean_t types_specified = B_FALSE; 3074 char *fields = NULL; 3075 list_cbdata_t cb = { 0 }; 3076 char *value; 3077 int limit = 0; 3078 int ret = 0; 3079 zfs_sort_column_t *sortcol = NULL; 3080 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3081 3082 /* check options */ 3083 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3084 switch (c) { 3085 case 'o': 3086 fields = optarg; 3087 break; 3088 case 'p': 3089 cb.cb_literal = B_TRUE; 3090 flags |= ZFS_ITER_LITERAL_PROPS; 3091 break; 3092 case 'd': 3093 limit = parse_depth(optarg, &flags); 3094 break; 3095 case 'r': 3096 flags |= ZFS_ITER_RECURSE; 3097 break; 3098 case 'H': 3099 cb.cb_scripted = B_TRUE; 3100 break; 3101 case 's': 3102 if (zfs_add_sort_column(&sortcol, optarg, 3103 B_FALSE) != 0) { 3104 (void) fprintf(stderr, 3105 gettext("invalid property '%s'\n"), optarg); 3106 usage(B_FALSE); 3107 } 3108 break; 3109 case 'S': 3110 if (zfs_add_sort_column(&sortcol, optarg, 3111 B_TRUE) != 0) { 3112 (void) fprintf(stderr, 3113 gettext("invalid property '%s'\n"), optarg); 3114 usage(B_FALSE); 3115 } 3116 break; 3117 case 't': 3118 types = 0; 3119 types_specified = B_TRUE; 3120 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3121 while (*optarg != '\0') { 3122 static char *type_subopts[] = { "filesystem", 3123 "volume", "snapshot", "snap", "bookmark", 3124 "all", NULL }; 3125 3126 switch (getsubopt(&optarg, type_subopts, 3127 &value)) { 3128 case 0: 3129 types |= ZFS_TYPE_FILESYSTEM; 3130 break; 3131 case 1: 3132 types |= ZFS_TYPE_VOLUME; 3133 break; 3134 case 2: 3135 case 3: 3136 types |= ZFS_TYPE_SNAPSHOT; 3137 break; 3138 case 4: 3139 types |= ZFS_TYPE_BOOKMARK; 3140 break; 3141 case 5: 3142 types = ZFS_TYPE_DATASET | 3143 ZFS_TYPE_BOOKMARK; 3144 break; 3145 default: 3146 (void) fprintf(stderr, 3147 gettext("invalid type '%s'\n"), 3148 value); 3149 usage(B_FALSE); 3150 } 3151 } 3152 break; 3153 case ':': 3154 (void) fprintf(stderr, gettext("missing argument for " 3155 "'%c' option\n"), optopt); 3156 usage(B_FALSE); 3157 break; 3158 case '?': 3159 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3160 optopt); 3161 usage(B_FALSE); 3162 } 3163 } 3164 3165 argc -= optind; 3166 argv += optind; 3167 3168 if (fields == NULL) 3169 fields = default_fields; 3170 3171 /* 3172 * If we are only going to list snapshot names and sort by name, 3173 * then we can use faster version. 3174 */ 3175 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3176 flags |= ZFS_ITER_SIMPLE; 3177 3178 /* 3179 * If "-o space" and no types were specified, don't display snapshots. 3180 */ 3181 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3182 types &= ~ZFS_TYPE_SNAPSHOT; 3183 3184 /* 3185 * If the user specifies '-o all', the zprop_get_list() doesn't 3186 * normally include the name of the dataset. For 'zfs list', we always 3187 * want this property to be first. 3188 */ 3189 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3190 != 0) 3191 usage(B_FALSE); 3192 3193 cb.cb_first = B_TRUE; 3194 3195 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3196 limit, list_callback, &cb); 3197 3198 zprop_free_list(cb.cb_proplist); 3199 zfs_free_sort_columns(sortcol); 3200 3201 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3202 (void) printf(gettext("no datasets available\n")); 3203 3204 return (ret); 3205 } 3206 3207 /* 3208 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3209 * zfs rename [-f] -p <fs | vol> <fs | vol> 3210 * zfs rename -r <snap> <snap> 3211 * 3212 * Renames the given dataset to another of the same type. 3213 * 3214 * The '-p' flag creates all the non-existing ancestors of the target first. 3215 */ 3216 /* ARGSUSED */ 3217 static int 3218 zfs_do_rename(int argc, char **argv) 3219 { 3220 zfs_handle_t *zhp; 3221 int c; 3222 int ret = 0; 3223 boolean_t recurse = B_FALSE; 3224 boolean_t parents = B_FALSE; 3225 boolean_t force_unmount = B_FALSE; 3226 3227 /* check options */ 3228 while ((c = getopt(argc, argv, "prf")) != -1) { 3229 switch (c) { 3230 case 'p': 3231 parents = B_TRUE; 3232 break; 3233 case 'r': 3234 recurse = B_TRUE; 3235 break; 3236 case 'f': 3237 force_unmount = B_TRUE; 3238 break; 3239 case '?': 3240 default: 3241 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3242 optopt); 3243 usage(B_FALSE); 3244 } 3245 } 3246 3247 argc -= optind; 3248 argv += optind; 3249 3250 /* check number of arguments */ 3251 if (argc < 1) { 3252 (void) fprintf(stderr, gettext("missing source dataset " 3253 "argument\n")); 3254 usage(B_FALSE); 3255 } 3256 if (argc < 2) { 3257 (void) fprintf(stderr, gettext("missing target dataset " 3258 "argument\n")); 3259 usage(B_FALSE); 3260 } 3261 if (argc > 2) { 3262 (void) fprintf(stderr, gettext("too many arguments\n")); 3263 usage(B_FALSE); 3264 } 3265 3266 if (recurse && parents) { 3267 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3268 "exclusive\n")); 3269 usage(B_FALSE); 3270 } 3271 3272 if (recurse && strchr(argv[0], '@') == 0) { 3273 (void) fprintf(stderr, gettext("source dataset for recursive " 3274 "rename must be a snapshot\n")); 3275 usage(B_FALSE); 3276 } 3277 3278 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3279 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3280 return (1); 3281 3282 /* If we were asked and the name looks good, try to create ancestors. */ 3283 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3284 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3285 zfs_close(zhp); 3286 return (1); 3287 } 3288 3289 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3290 3291 zfs_close(zhp); 3292 return (ret); 3293 } 3294 3295 /* 3296 * zfs promote <fs> 3297 * 3298 * Promotes the given clone fs to be the parent 3299 */ 3300 /* ARGSUSED */ 3301 static int 3302 zfs_do_promote(int argc, char **argv) 3303 { 3304 zfs_handle_t *zhp; 3305 int ret = 0; 3306 3307 /* check options */ 3308 if (argc > 1 && argv[1][0] == '-') { 3309 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3310 argv[1][1]); 3311 usage(B_FALSE); 3312 } 3313 3314 /* check number of arguments */ 3315 if (argc < 2) { 3316 (void) fprintf(stderr, gettext("missing clone filesystem" 3317 " argument\n")); 3318 usage(B_FALSE); 3319 } 3320 if (argc > 2) { 3321 (void) fprintf(stderr, gettext("too many arguments\n")); 3322 usage(B_FALSE); 3323 } 3324 3325 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3326 if (zhp == NULL) 3327 return (1); 3328 3329 ret = (zfs_promote(zhp) != 0); 3330 3331 3332 zfs_close(zhp); 3333 return (ret); 3334 } 3335 3336 /* 3337 * zfs rollback [-rRf] <snapshot> 3338 * 3339 * -r Delete any intervening snapshots before doing rollback 3340 * -R Delete any snapshots and their clones 3341 * -f ignored for backwards compatability 3342 * 3343 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3344 * since then and making it the active dataset. If more recent snapshots exist, 3345 * the command will complain unless the '-r' flag is given. 3346 */ 3347 typedef struct rollback_cbdata { 3348 uint64_t cb_create; 3349 boolean_t cb_first; 3350 int cb_doclones; 3351 char *cb_target; 3352 int cb_error; 3353 boolean_t cb_recurse; 3354 } rollback_cbdata_t; 3355 3356 static int 3357 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3358 { 3359 rollback_cbdata_t *cbp = data; 3360 3361 if (cbp->cb_first && cbp->cb_recurse) { 3362 (void) fprintf(stderr, gettext("cannot rollback to " 3363 "'%s': clones of previous snapshots exist\n"), 3364 cbp->cb_target); 3365 (void) fprintf(stderr, gettext("use '-R' to " 3366 "force deletion of the following clones and " 3367 "dependents:\n")); 3368 cbp->cb_first = 0; 3369 cbp->cb_error = 1; 3370 } 3371 3372 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3373 3374 zfs_close(zhp); 3375 return (0); 3376 } 3377 3378 /* 3379 * Report any snapshots more recent than the one specified. Used when '-r' is 3380 * not specified. We reuse this same callback for the snapshot dependents - if 3381 * 'cb_dependent' is set, then this is a dependent and we should report it 3382 * without checking the transaction group. 3383 */ 3384 static int 3385 rollback_check(zfs_handle_t *zhp, void *data) 3386 { 3387 rollback_cbdata_t *cbp = data; 3388 3389 if (cbp->cb_doclones) { 3390 zfs_close(zhp); 3391 return (0); 3392 } 3393 3394 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3395 if (cbp->cb_first && !cbp->cb_recurse) { 3396 (void) fprintf(stderr, gettext("cannot " 3397 "rollback to '%s': more recent snapshots " 3398 "or bookmarks exist\n"), 3399 cbp->cb_target); 3400 (void) fprintf(stderr, gettext("use '-r' to " 3401 "force deletion of the following " 3402 "snapshots and bookmarks:\n")); 3403 cbp->cb_first = 0; 3404 cbp->cb_error = 1; 3405 } 3406 3407 if (cbp->cb_recurse) { 3408 if (zfs_iter_dependents(zhp, B_TRUE, 3409 rollback_check_dependent, cbp) != 0) { 3410 zfs_close(zhp); 3411 return (-1); 3412 } 3413 } else { 3414 (void) fprintf(stderr, "%s\n", 3415 zfs_get_name(zhp)); 3416 } 3417 } 3418 zfs_close(zhp); 3419 return (0); 3420 } 3421 3422 static int 3423 zfs_do_rollback(int argc, char **argv) 3424 { 3425 int ret = 0; 3426 int c; 3427 boolean_t force = B_FALSE; 3428 rollback_cbdata_t cb = { 0 }; 3429 zfs_handle_t *zhp, *snap; 3430 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3431 char *delim; 3432 3433 /* check options */ 3434 while ((c = getopt(argc, argv, "rRf")) != -1) { 3435 switch (c) { 3436 case 'r': 3437 cb.cb_recurse = 1; 3438 break; 3439 case 'R': 3440 cb.cb_recurse = 1; 3441 cb.cb_doclones = 1; 3442 break; 3443 case 'f': 3444 force = B_TRUE; 3445 break; 3446 case '?': 3447 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3448 optopt); 3449 usage(B_FALSE); 3450 } 3451 } 3452 3453 argc -= optind; 3454 argv += optind; 3455 3456 /* check number of arguments */ 3457 if (argc < 1) { 3458 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3459 usage(B_FALSE); 3460 } 3461 if (argc > 1) { 3462 (void) fprintf(stderr, gettext("too many arguments\n")); 3463 usage(B_FALSE); 3464 } 3465 3466 /* open the snapshot */ 3467 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3468 return (1); 3469 3470 /* open the parent dataset */ 3471 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3472 verify((delim = strrchr(parentname, '@')) != NULL); 3473 *delim = '\0'; 3474 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3475 zfs_close(snap); 3476 return (1); 3477 } 3478 3479 /* 3480 * Check for more recent snapshots and/or clones based on the presence 3481 * of '-r' and '-R'. 3482 */ 3483 cb.cb_target = argv[0]; 3484 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3485 cb.cb_first = B_TRUE; 3486 cb.cb_error = 0; 3487 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3488 goto out; 3489 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3490 goto out; 3491 3492 if ((ret = cb.cb_error) != 0) 3493 goto out; 3494 3495 /* 3496 * Rollback parent to the given snapshot. 3497 */ 3498 ret = zfs_rollback(zhp, snap, force); 3499 3500 out: 3501 zfs_close(snap); 3502 zfs_close(zhp); 3503 3504 if (ret == 0) 3505 return (0); 3506 else 3507 return (1); 3508 } 3509 3510 /* 3511 * zfs set property=value ... { fs | snap | vol } ... 3512 * 3513 * Sets the given properties for all datasets specified on the command line. 3514 */ 3515 3516 static int 3517 set_callback(zfs_handle_t *zhp, void *data) 3518 { 3519 nvlist_t *props = data; 3520 3521 if (zfs_prop_set_list(zhp, props) != 0) { 3522 switch (libzfs_errno(g_zfs)) { 3523 case EZFS_MOUNTFAILED: 3524 (void) fprintf(stderr, gettext("property may be set " 3525 "but unable to remount filesystem\n")); 3526 break; 3527 case EZFS_SHARENFSFAILED: 3528 (void) fprintf(stderr, gettext("property may be set " 3529 "but unable to reshare filesystem\n")); 3530 break; 3531 } 3532 return (1); 3533 } 3534 return (0); 3535 } 3536 3537 static int 3538 zfs_do_set(int argc, char **argv) 3539 { 3540 nvlist_t *props = NULL; 3541 int ds_start = -1; /* argv idx of first dataset arg */ 3542 int ret = 0; 3543 3544 /* check for options */ 3545 if (argc > 1 && argv[1][0] == '-') { 3546 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3547 argv[1][1]); 3548 usage(B_FALSE); 3549 } 3550 3551 /* check number of arguments */ 3552 if (argc < 2) { 3553 (void) fprintf(stderr, gettext("missing arguments\n")); 3554 usage(B_FALSE); 3555 } 3556 if (argc < 3) { 3557 if (strchr(argv[1], '=') == NULL) { 3558 (void) fprintf(stderr, gettext("missing property=value " 3559 "argument(s)\n")); 3560 } else { 3561 (void) fprintf(stderr, gettext("missing dataset " 3562 "name(s)\n")); 3563 } 3564 usage(B_FALSE); 3565 } 3566 3567 /* validate argument order: prop=val args followed by dataset args */ 3568 for (int i = 1; i < argc; i++) { 3569 if (strchr(argv[i], '=') != NULL) { 3570 if (ds_start > 0) { 3571 /* out-of-order prop=val argument */ 3572 (void) fprintf(stderr, gettext("invalid " 3573 "argument order\n"), i); 3574 usage(B_FALSE); 3575 } 3576 } else if (ds_start < 0) { 3577 ds_start = i; 3578 } 3579 } 3580 if (ds_start < 0) { 3581 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3582 usage(B_FALSE); 3583 } 3584 3585 /* Populate a list of property settings */ 3586 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3587 nomem(); 3588 for (int i = 1; i < ds_start; i++) { 3589 if ((ret = parseprop(props, argv[i])) != 0) 3590 goto error; 3591 } 3592 3593 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3594 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3595 3596 error: 3597 nvlist_free(props); 3598 return (ret); 3599 } 3600 3601 typedef struct snap_cbdata { 3602 nvlist_t *sd_nvl; 3603 boolean_t sd_recursive; 3604 const char *sd_snapname; 3605 } snap_cbdata_t; 3606 3607 static int 3608 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3609 { 3610 snap_cbdata_t *sd = arg; 3611 char *name; 3612 int rv = 0; 3613 int error; 3614 3615 if (sd->sd_recursive && 3616 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3617 zfs_close(zhp); 3618 return (0); 3619 } 3620 3621 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3622 if (error == -1) 3623 nomem(); 3624 fnvlist_add_boolean(sd->sd_nvl, name); 3625 free(name); 3626 3627 if (sd->sd_recursive) 3628 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3629 zfs_close(zhp); 3630 return (rv); 3631 } 3632 3633 /* 3634 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3635 * 3636 * Creates a snapshot with the given name. While functionally equivalent to 3637 * 'zfs create', it is a separate command to differentiate intent. 3638 */ 3639 static int 3640 zfs_do_snapshot(int argc, char **argv) 3641 { 3642 int ret = 0; 3643 char c; 3644 nvlist_t *props; 3645 snap_cbdata_t sd = { 0 }; 3646 boolean_t multiple_snaps = B_FALSE; 3647 3648 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3649 nomem(); 3650 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3651 nomem(); 3652 3653 /* check options */ 3654 while ((c = getopt(argc, argv, "ro:")) != -1) { 3655 switch (c) { 3656 case 'o': 3657 if (parseprop(props, optarg) != 0) 3658 return (1); 3659 break; 3660 case 'r': 3661 sd.sd_recursive = B_TRUE; 3662 multiple_snaps = B_TRUE; 3663 break; 3664 case '?': 3665 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3666 optopt); 3667 goto usage; 3668 } 3669 } 3670 3671 argc -= optind; 3672 argv += optind; 3673 3674 /* check number of arguments */ 3675 if (argc < 1) { 3676 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3677 goto usage; 3678 } 3679 3680 if (argc > 1) 3681 multiple_snaps = B_TRUE; 3682 for (; argc > 0; argc--, argv++) { 3683 char *atp; 3684 zfs_handle_t *zhp; 3685 3686 atp = strchr(argv[0], '@'); 3687 if (atp == NULL) 3688 goto usage; 3689 *atp = '\0'; 3690 sd.sd_snapname = atp + 1; 3691 zhp = zfs_open(g_zfs, argv[0], 3692 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3693 if (zhp == NULL) 3694 goto usage; 3695 if (zfs_snapshot_cb(zhp, &sd) != 0) 3696 goto usage; 3697 } 3698 3699 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3700 nvlist_free(sd.sd_nvl); 3701 nvlist_free(props); 3702 if (ret != 0 && multiple_snaps) 3703 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3704 return (ret != 0); 3705 3706 usage: 3707 nvlist_free(sd.sd_nvl); 3708 nvlist_free(props); 3709 usage(B_FALSE); 3710 return (-1); 3711 } 3712 3713 /* 3714 * Send a backup stream to stdout. 3715 */ 3716 static int 3717 zfs_do_send(int argc, char **argv) 3718 { 3719 char *fromname = NULL; 3720 char *toname = NULL; 3721 char *resume_token = NULL; 3722 char *cp; 3723 zfs_handle_t *zhp; 3724 sendflags_t flags = { 0 }; 3725 int c, err; 3726 nvlist_t *dbgnv = NULL; 3727 boolean_t extraverbose = B_FALSE; 3728 3729 struct option long_options[] = { 3730 {"replicate", no_argument, NULL, 'R'}, 3731 {"props", no_argument, NULL, 'p'}, 3732 {"parsable", no_argument, NULL, 'P'}, 3733 {"dedup", no_argument, NULL, 'D'}, 3734 {"verbose", no_argument, NULL, 'v'}, 3735 {"dryrun", no_argument, NULL, 'n'}, 3736 {"large-block", no_argument, NULL, 'L'}, 3737 {"embed", no_argument, NULL, 'e'}, 3738 {"resume", required_argument, NULL, 't'}, 3739 {"compressed", no_argument, NULL, 'c'}, 3740 {0, 0, 0, 0} 3741 }; 3742 3743 /* check options */ 3744 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options, 3745 NULL)) != -1) { 3746 switch (c) { 3747 case 'i': 3748 if (fromname) 3749 usage(B_FALSE); 3750 fromname = optarg; 3751 break; 3752 case 'I': 3753 if (fromname) 3754 usage(B_FALSE); 3755 fromname = optarg; 3756 flags.doall = B_TRUE; 3757 break; 3758 case 'R': 3759 flags.replicate = B_TRUE; 3760 break; 3761 case 'p': 3762 flags.props = B_TRUE; 3763 break; 3764 case 'P': 3765 flags.parsable = B_TRUE; 3766 flags.verbose = B_TRUE; 3767 break; 3768 case 'v': 3769 if (flags.verbose) 3770 extraverbose = B_TRUE; 3771 flags.verbose = B_TRUE; 3772 flags.progress = B_TRUE; 3773 break; 3774 case 'D': 3775 flags.dedup = B_TRUE; 3776 break; 3777 case 'n': 3778 flags.dryrun = B_TRUE; 3779 break; 3780 case 'L': 3781 flags.largeblock = B_TRUE; 3782 break; 3783 case 'e': 3784 flags.embed_data = B_TRUE; 3785 break; 3786 case 't': 3787 resume_token = optarg; 3788 break; 3789 case 'c': 3790 flags.compress = B_TRUE; 3791 break; 3792 case ':': 3793 /* 3794 * If a parameter was not passed, optopt contains the 3795 * value that would normally lead us into the 3796 * appropriate case statement. If it's > 256, then this 3797 * must be a longopt and we should look at argv to get 3798 * the string. Otherwise it's just the character, so we 3799 * should use it directly. 3800 */ 3801 if (optopt <= UINT8_MAX) { 3802 (void) fprintf(stderr, 3803 gettext("missing argument for '%c' " 3804 "option\n"), optopt); 3805 } else { 3806 (void) fprintf(stderr, 3807 gettext("missing argument for '%s' " 3808 "option\n"), argv[optind - 1]); 3809 } 3810 usage(B_FALSE); 3811 break; 3812 case '?': 3813 /*FALLTHROUGH*/ 3814 default: 3815 /* 3816 * If an invalid flag was passed, optopt contains the 3817 * character if it was a short flag, or 0 if it was a 3818 * longopt. 3819 */ 3820 if (optopt != 0) { 3821 (void) fprintf(stderr, 3822 gettext("invalid option '%c'\n"), optopt); 3823 } else { 3824 (void) fprintf(stderr, 3825 gettext("invalid option '%s'\n"), 3826 argv[optind - 1]); 3827 3828 } 3829 usage(B_FALSE); 3830 } 3831 } 3832 3833 argc -= optind; 3834 argv += optind; 3835 3836 if (resume_token != NULL) { 3837 if (fromname != NULL || flags.replicate || flags.props || 3838 flags.dedup) { 3839 (void) fprintf(stderr, 3840 gettext("invalid flags combined with -t\n")); 3841 usage(B_FALSE); 3842 } 3843 if (argc != 0) { 3844 (void) fprintf(stderr, gettext("no additional " 3845 "arguments are permitted with -t\n")); 3846 usage(B_FALSE); 3847 } 3848 } else { 3849 if (argc < 1) { 3850 (void) fprintf(stderr, 3851 gettext("missing snapshot argument\n")); 3852 usage(B_FALSE); 3853 } 3854 if (argc > 1) { 3855 (void) fprintf(stderr, gettext("too many arguments\n")); 3856 usage(B_FALSE); 3857 } 3858 } 3859 3860 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3861 (void) fprintf(stderr, 3862 gettext("Error: Stream can not be written to a terminal.\n" 3863 "You must redirect standard output.\n")); 3864 return (1); 3865 } 3866 3867 if (resume_token != NULL) { 3868 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3869 resume_token)); 3870 } 3871 3872 /* 3873 * Special case sending a filesystem, or from a bookmark. 3874 */ 3875 if (strchr(argv[0], '@') == NULL || 3876 (fromname && strchr(fromname, '#') != NULL)) { 3877 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3878 enum lzc_send_flags lzc_flags = 0; 3879 3880 if (flags.replicate || flags.doall || flags.props || 3881 flags.dedup || flags.dryrun || flags.verbose || 3882 flags.progress) { 3883 (void) fprintf(stderr, 3884 gettext("Error: " 3885 "Unsupported flag with filesystem or bookmark.\n")); 3886 return (1); 3887 } 3888 3889 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3890 if (zhp == NULL) 3891 return (1); 3892 3893 if (flags.largeblock) 3894 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3895 if (flags.embed_data) 3896 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3897 if (flags.compress) 3898 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 3899 3900 if (fromname != NULL && 3901 (fromname[0] == '#' || fromname[0] == '@')) { 3902 /* 3903 * Incremental source name begins with # or @. 3904 * Default to same fs as target. 3905 */ 3906 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3907 cp = strchr(frombuf, '@'); 3908 if (cp != NULL) 3909 *cp = '\0'; 3910 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3911 fromname = frombuf; 3912 } 3913 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3914 zfs_close(zhp); 3915 return (err != 0); 3916 } 3917 3918 cp = strchr(argv[0], '@'); 3919 *cp = '\0'; 3920 toname = cp + 1; 3921 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3922 if (zhp == NULL) 3923 return (1); 3924 3925 /* 3926 * If they specified the full path to the snapshot, chop off 3927 * everything except the short name of the snapshot, but special 3928 * case if they specify the origin. 3929 */ 3930 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3931 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3932 zprop_source_t src; 3933 3934 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3935 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3936 3937 if (strcmp(origin, fromname) == 0) { 3938 fromname = NULL; 3939 flags.fromorigin = B_TRUE; 3940 } else { 3941 *cp = '\0'; 3942 if (cp != fromname && strcmp(argv[0], fromname)) { 3943 (void) fprintf(stderr, 3944 gettext("incremental source must be " 3945 "in same filesystem\n")); 3946 usage(B_FALSE); 3947 } 3948 fromname = cp + 1; 3949 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3950 (void) fprintf(stderr, 3951 gettext("invalid incremental source\n")); 3952 usage(B_FALSE); 3953 } 3954 } 3955 } 3956 3957 if (flags.replicate && fromname == NULL) 3958 flags.doall = B_TRUE; 3959 3960 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3961 extraverbose ? &dbgnv : NULL); 3962 3963 if (extraverbose && dbgnv != NULL) { 3964 /* 3965 * dump_nvlist prints to stdout, but that's been 3966 * redirected to a file. Make it print to stderr 3967 * instead. 3968 */ 3969 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3970 dump_nvlist(dbgnv, 0); 3971 nvlist_free(dbgnv); 3972 } 3973 zfs_close(zhp); 3974 3975 return (err != 0); 3976 } 3977 3978 /* 3979 * Restore a backup stream from stdin. 3980 */ 3981 static int 3982 zfs_do_receive(int argc, char **argv) 3983 { 3984 int c, err = 0; 3985 recvflags_t flags = { 0 }; 3986 boolean_t abort_resumable = B_FALSE; 3987 3988 nvlist_t *props; 3989 nvpair_t *nvp = NULL; 3990 3991 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3992 nomem(); 3993 3994 /* check options */ 3995 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3996 switch (c) { 3997 case 'o': 3998 if (parseprop(props, optarg) != 0) 3999 return (1); 4000 break; 4001 case 'd': 4002 flags.isprefix = B_TRUE; 4003 break; 4004 case 'e': 4005 flags.isprefix = B_TRUE; 4006 flags.istail = B_TRUE; 4007 break; 4008 case 'n': 4009 flags.dryrun = B_TRUE; 4010 break; 4011 case 'u': 4012 flags.nomount = B_TRUE; 4013 break; 4014 case 'v': 4015 flags.verbose = B_TRUE; 4016 break; 4017 case 's': 4018 flags.resumable = B_TRUE; 4019 break; 4020 case 'F': 4021 flags.force = B_TRUE; 4022 break; 4023 case 'A': 4024 abort_resumable = B_TRUE; 4025 break; 4026 case ':': 4027 (void) fprintf(stderr, gettext("missing argument for " 4028 "'%c' option\n"), optopt); 4029 usage(B_FALSE); 4030 break; 4031 case '?': 4032 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4033 optopt); 4034 usage(B_FALSE); 4035 } 4036 } 4037 4038 argc -= optind; 4039 argv += optind; 4040 4041 /* check number of arguments */ 4042 if (argc < 1) { 4043 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4044 usage(B_FALSE); 4045 } 4046 if (argc > 1) { 4047 (void) fprintf(stderr, gettext("too many arguments\n")); 4048 usage(B_FALSE); 4049 } 4050 4051 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4052 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4053 (void) fprintf(stderr, gettext("invalid option")); 4054 usage(B_FALSE); 4055 } 4056 } 4057 4058 if (abort_resumable) { 4059 if (flags.isprefix || flags.istail || flags.dryrun || 4060 flags.resumable || flags.nomount) { 4061 (void) fprintf(stderr, gettext("invalid option")); 4062 usage(B_FALSE); 4063 } 4064 4065 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4066 (void) snprintf(namebuf, sizeof (namebuf), 4067 "%s/%%recv", argv[0]); 4068 4069 if (zfs_dataset_exists(g_zfs, namebuf, 4070 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4071 zfs_handle_t *zhp = zfs_open(g_zfs, 4072 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4073 if (zhp == NULL) 4074 return (1); 4075 err = zfs_destroy(zhp, B_FALSE); 4076 } else { 4077 zfs_handle_t *zhp = zfs_open(g_zfs, 4078 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4079 if (zhp == NULL) 4080 usage(B_FALSE); 4081 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4082 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4083 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4084 (void) fprintf(stderr, 4085 gettext("'%s' does not have any " 4086 "resumable receive state to abort\n"), 4087 argv[0]); 4088 return (1); 4089 } 4090 err = zfs_destroy(zhp, B_FALSE); 4091 } 4092 4093 return (err != 0); 4094 } 4095 4096 if (isatty(STDIN_FILENO)) { 4097 (void) fprintf(stderr, 4098 gettext("Error: Backup stream can not be read " 4099 "from a terminal.\n" 4100 "You must redirect standard input.\n")); 4101 return (1); 4102 } 4103 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4104 4105 return (err != 0); 4106 } 4107 4108 /* 4109 * allow/unallow stuff 4110 */ 4111 /* copied from zfs/sys/dsl_deleg.h */ 4112 #define ZFS_DELEG_PERM_CREATE "create" 4113 #define ZFS_DELEG_PERM_DESTROY "destroy" 4114 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4115 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4116 #define ZFS_DELEG_PERM_CLONE "clone" 4117 #define ZFS_DELEG_PERM_PROMOTE "promote" 4118 #define ZFS_DELEG_PERM_RENAME "rename" 4119 #define ZFS_DELEG_PERM_MOUNT "mount" 4120 #define ZFS_DELEG_PERM_SHARE "share" 4121 #define ZFS_DELEG_PERM_SEND "send" 4122 #define ZFS_DELEG_PERM_RECEIVE "receive" 4123 #define ZFS_DELEG_PERM_ALLOW "allow" 4124 #define ZFS_DELEG_PERM_USERPROP "userprop" 4125 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4126 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4127 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4128 #define ZFS_DELEG_PERM_USERUSED "userused" 4129 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4130 #define ZFS_DELEG_PERM_HOLD "hold" 4131 #define ZFS_DELEG_PERM_RELEASE "release" 4132 #define ZFS_DELEG_PERM_DIFF "diff" 4133 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4134 4135 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4136 4137 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4138 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4139 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4140 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4141 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4142 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4143 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4144 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4145 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4146 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4147 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4148 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4149 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4150 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4151 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4152 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4153 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4154 4155 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4156 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4157 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4158 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4159 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4160 { NULL, ZFS_DELEG_NOTE_NONE } 4161 }; 4162 4163 /* permission structure */ 4164 typedef struct deleg_perm { 4165 zfs_deleg_who_type_t dp_who_type; 4166 const char *dp_name; 4167 boolean_t dp_local; 4168 boolean_t dp_descend; 4169 } deleg_perm_t; 4170 4171 /* */ 4172 typedef struct deleg_perm_node { 4173 deleg_perm_t dpn_perm; 4174 4175 uu_avl_node_t dpn_avl_node; 4176 } deleg_perm_node_t; 4177 4178 typedef struct fs_perm fs_perm_t; 4179 4180 /* permissions set */ 4181 typedef struct who_perm { 4182 zfs_deleg_who_type_t who_type; 4183 const char *who_name; /* id */ 4184 char who_ug_name[256]; /* user/group name */ 4185 fs_perm_t *who_fsperm; /* uplink */ 4186 4187 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4188 } who_perm_t; 4189 4190 /* */ 4191 typedef struct who_perm_node { 4192 who_perm_t who_perm; 4193 uu_avl_node_t who_avl_node; 4194 } who_perm_node_t; 4195 4196 typedef struct fs_perm_set fs_perm_set_t; 4197 /* fs permissions */ 4198 struct fs_perm { 4199 const char *fsp_name; 4200 4201 uu_avl_t *fsp_sc_avl; /* sets,create */ 4202 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4203 4204 fs_perm_set_t *fsp_set; /* uplink */ 4205 }; 4206 4207 /* */ 4208 typedef struct fs_perm_node { 4209 fs_perm_t fspn_fsperm; 4210 uu_avl_t *fspn_avl; 4211 4212 uu_list_node_t fspn_list_node; 4213 } fs_perm_node_t; 4214 4215 /* top level structure */ 4216 struct fs_perm_set { 4217 uu_list_pool_t *fsps_list_pool; 4218 uu_list_t *fsps_list; /* list of fs_perms */ 4219 4220 uu_avl_pool_t *fsps_named_set_avl_pool; 4221 uu_avl_pool_t *fsps_who_perm_avl_pool; 4222 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4223 }; 4224 4225 static inline const char * 4226 deleg_perm_type(zfs_deleg_note_t note) 4227 { 4228 /* subcommands */ 4229 switch (note) { 4230 /* SUBCOMMANDS */ 4231 /* OTHER */ 4232 case ZFS_DELEG_NOTE_GROUPQUOTA: 4233 case ZFS_DELEG_NOTE_GROUPUSED: 4234 case ZFS_DELEG_NOTE_USERPROP: 4235 case ZFS_DELEG_NOTE_USERQUOTA: 4236 case ZFS_DELEG_NOTE_USERUSED: 4237 /* other */ 4238 return (gettext("other")); 4239 default: 4240 return (gettext("subcommand")); 4241 } 4242 } 4243 4244 static int 4245 who_type2weight(zfs_deleg_who_type_t who_type) 4246 { 4247 int res; 4248 switch (who_type) { 4249 case ZFS_DELEG_NAMED_SET_SETS: 4250 case ZFS_DELEG_NAMED_SET: 4251 res = 0; 4252 break; 4253 case ZFS_DELEG_CREATE_SETS: 4254 case ZFS_DELEG_CREATE: 4255 res = 1; 4256 break; 4257 case ZFS_DELEG_USER_SETS: 4258 case ZFS_DELEG_USER: 4259 res = 2; 4260 break; 4261 case ZFS_DELEG_GROUP_SETS: 4262 case ZFS_DELEG_GROUP: 4263 res = 3; 4264 break; 4265 case ZFS_DELEG_EVERYONE_SETS: 4266 case ZFS_DELEG_EVERYONE: 4267 res = 4; 4268 break; 4269 default: 4270 res = -1; 4271 } 4272 4273 return (res); 4274 } 4275 4276 /* ARGSUSED */ 4277 static int 4278 who_perm_compare(const void *larg, const void *rarg, void *unused) 4279 { 4280 const who_perm_node_t *l = larg; 4281 const who_perm_node_t *r = rarg; 4282 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4283 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4284 int lweight = who_type2weight(ltype); 4285 int rweight = who_type2weight(rtype); 4286 int res = lweight - rweight; 4287 if (res == 0) 4288 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4289 ZFS_MAX_DELEG_NAME-1); 4290 4291 if (res == 0) 4292 return (0); 4293 if (res > 0) 4294 return (1); 4295 else 4296 return (-1); 4297 } 4298 4299 /* ARGSUSED */ 4300 static int 4301 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4302 { 4303 const deleg_perm_node_t *l = larg; 4304 const deleg_perm_node_t *r = rarg; 4305 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4306 ZFS_MAX_DELEG_NAME-1); 4307 4308 if (res == 0) 4309 return (0); 4310 4311 if (res > 0) 4312 return (1); 4313 else 4314 return (-1); 4315 } 4316 4317 static inline void 4318 fs_perm_set_init(fs_perm_set_t *fspset) 4319 { 4320 bzero(fspset, sizeof (fs_perm_set_t)); 4321 4322 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4323 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4324 NULL, UU_DEFAULT)) == NULL) 4325 nomem(); 4326 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4327 UU_DEFAULT)) == NULL) 4328 nomem(); 4329 4330 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4331 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4332 who_perm_node_t, who_avl_node), who_perm_compare, 4333 UU_DEFAULT)) == NULL) 4334 nomem(); 4335 4336 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4337 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4338 who_perm_node_t, who_avl_node), who_perm_compare, 4339 UU_DEFAULT)) == NULL) 4340 nomem(); 4341 4342 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4343 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4344 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4345 == NULL) 4346 nomem(); 4347 } 4348 4349 static inline void fs_perm_fini(fs_perm_t *); 4350 static inline void who_perm_fini(who_perm_t *); 4351 4352 static inline void 4353 fs_perm_set_fini(fs_perm_set_t *fspset) 4354 { 4355 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4356 4357 while (node != NULL) { 4358 fs_perm_node_t *next_node = 4359 uu_list_next(fspset->fsps_list, node); 4360 fs_perm_t *fsperm = &node->fspn_fsperm; 4361 fs_perm_fini(fsperm); 4362 uu_list_remove(fspset->fsps_list, node); 4363 free(node); 4364 node = next_node; 4365 } 4366 4367 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4368 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4369 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4370 } 4371 4372 static inline void 4373 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4374 const char *name) 4375 { 4376 deleg_perm->dp_who_type = type; 4377 deleg_perm->dp_name = name; 4378 } 4379 4380 static inline void 4381 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4382 zfs_deleg_who_type_t type, const char *name) 4383 { 4384 uu_avl_pool_t *pool; 4385 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4386 4387 bzero(who_perm, sizeof (who_perm_t)); 4388 4389 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4390 UU_DEFAULT)) == NULL) 4391 nomem(); 4392 4393 who_perm->who_type = type; 4394 who_perm->who_name = name; 4395 who_perm->who_fsperm = fsperm; 4396 } 4397 4398 static inline void 4399 who_perm_fini(who_perm_t *who_perm) 4400 { 4401 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4402 4403 while (node != NULL) { 4404 deleg_perm_node_t *next_node = 4405 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4406 4407 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4408 free(node); 4409 node = next_node; 4410 } 4411 4412 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4413 } 4414 4415 static inline void 4416 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4417 { 4418 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4419 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4420 4421 bzero(fsperm, sizeof (fs_perm_t)); 4422 4423 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4424 == NULL) 4425 nomem(); 4426 4427 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4428 == NULL) 4429 nomem(); 4430 4431 fsperm->fsp_set = fspset; 4432 fsperm->fsp_name = fsname; 4433 } 4434 4435 static inline void 4436 fs_perm_fini(fs_perm_t *fsperm) 4437 { 4438 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4439 while (node != NULL) { 4440 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4441 node); 4442 who_perm_t *who_perm = &node->who_perm; 4443 who_perm_fini(who_perm); 4444 uu_avl_remove(fsperm->fsp_sc_avl, node); 4445 free(node); 4446 node = next_node; 4447 } 4448 4449 node = uu_avl_first(fsperm->fsp_uge_avl); 4450 while (node != NULL) { 4451 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4452 node); 4453 who_perm_t *who_perm = &node->who_perm; 4454 who_perm_fini(who_perm); 4455 uu_avl_remove(fsperm->fsp_uge_avl, node); 4456 free(node); 4457 node = next_node; 4458 } 4459 4460 uu_avl_destroy(fsperm->fsp_sc_avl); 4461 uu_avl_destroy(fsperm->fsp_uge_avl); 4462 } 4463 4464 static void 4465 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4466 zfs_deleg_who_type_t who_type, const char *name, char locality) 4467 { 4468 uu_avl_index_t idx = 0; 4469 4470 deleg_perm_node_t *found_node = NULL; 4471 deleg_perm_t *deleg_perm = &node->dpn_perm; 4472 4473 deleg_perm_init(deleg_perm, who_type, name); 4474 4475 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4476 == NULL) 4477 uu_avl_insert(avl, node, idx); 4478 else { 4479 node = found_node; 4480 deleg_perm = &node->dpn_perm; 4481 } 4482 4483 4484 switch (locality) { 4485 case ZFS_DELEG_LOCAL: 4486 deleg_perm->dp_local = B_TRUE; 4487 break; 4488 case ZFS_DELEG_DESCENDENT: 4489 deleg_perm->dp_descend = B_TRUE; 4490 break; 4491 case ZFS_DELEG_NA: 4492 break; 4493 default: 4494 assert(B_FALSE); /* invalid locality */ 4495 } 4496 } 4497 4498 static inline int 4499 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4500 { 4501 nvpair_t *nvp = NULL; 4502 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4503 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4504 zfs_deleg_who_type_t who_type = who_perm->who_type; 4505 4506 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4507 const char *name = nvpair_name(nvp); 4508 data_type_t type = nvpair_type(nvp); 4509 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4510 deleg_perm_node_t *node = 4511 safe_malloc(sizeof (deleg_perm_node_t)); 4512 4513 assert(type == DATA_TYPE_BOOLEAN); 4514 4515 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4516 set_deleg_perm_node(avl, node, who_type, name, locality); 4517 } 4518 4519 return (0); 4520 } 4521 4522 static inline int 4523 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4524 { 4525 nvpair_t *nvp = NULL; 4526 fs_perm_set_t *fspset = fsperm->fsp_set; 4527 4528 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4529 nvlist_t *nvl2 = NULL; 4530 const char *name = nvpair_name(nvp); 4531 uu_avl_t *avl = NULL; 4532 uu_avl_pool_t *avl_pool = NULL; 4533 zfs_deleg_who_type_t perm_type = name[0]; 4534 char perm_locality = name[1]; 4535 const char *perm_name = name + 3; 4536 boolean_t is_set = B_TRUE; 4537 who_perm_t *who_perm = NULL; 4538 4539 assert('$' == name[2]); 4540 4541 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4542 return (-1); 4543 4544 switch (perm_type) { 4545 case ZFS_DELEG_CREATE: 4546 case ZFS_DELEG_CREATE_SETS: 4547 case ZFS_DELEG_NAMED_SET: 4548 case ZFS_DELEG_NAMED_SET_SETS: 4549 avl_pool = fspset->fsps_named_set_avl_pool; 4550 avl = fsperm->fsp_sc_avl; 4551 break; 4552 case ZFS_DELEG_USER: 4553 case ZFS_DELEG_USER_SETS: 4554 case ZFS_DELEG_GROUP: 4555 case ZFS_DELEG_GROUP_SETS: 4556 case ZFS_DELEG_EVERYONE: 4557 case ZFS_DELEG_EVERYONE_SETS: 4558 avl_pool = fspset->fsps_who_perm_avl_pool; 4559 avl = fsperm->fsp_uge_avl; 4560 break; 4561 4562 default: 4563 assert(!"unhandled zfs_deleg_who_type_t"); 4564 } 4565 4566 if (is_set) { 4567 who_perm_node_t *found_node = NULL; 4568 who_perm_node_t *node = safe_malloc( 4569 sizeof (who_perm_node_t)); 4570 who_perm = &node->who_perm; 4571 uu_avl_index_t idx = 0; 4572 4573 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4574 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4575 4576 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4577 == NULL) { 4578 if (avl == fsperm->fsp_uge_avl) { 4579 uid_t rid = 0; 4580 struct passwd *p = NULL; 4581 struct group *g = NULL; 4582 const char *nice_name = NULL; 4583 4584 switch (perm_type) { 4585 case ZFS_DELEG_USER_SETS: 4586 case ZFS_DELEG_USER: 4587 rid = atoi(perm_name); 4588 p = getpwuid(rid); 4589 if (p) 4590 nice_name = p->pw_name; 4591 break; 4592 case ZFS_DELEG_GROUP_SETS: 4593 case ZFS_DELEG_GROUP: 4594 rid = atoi(perm_name); 4595 g = getgrgid(rid); 4596 if (g) 4597 nice_name = g->gr_name; 4598 break; 4599 4600 default: 4601 break; 4602 } 4603 4604 if (nice_name != NULL) 4605 (void) strlcpy( 4606 node->who_perm.who_ug_name, 4607 nice_name, 256); 4608 } 4609 4610 uu_avl_insert(avl, node, idx); 4611 } else { 4612 node = found_node; 4613 who_perm = &node->who_perm; 4614 } 4615 } 4616 4617 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4618 } 4619 4620 return (0); 4621 } 4622 4623 static inline int 4624 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4625 { 4626 nvpair_t *nvp = NULL; 4627 uu_avl_index_t idx = 0; 4628 4629 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4630 nvlist_t *nvl2 = NULL; 4631 const char *fsname = nvpair_name(nvp); 4632 data_type_t type = nvpair_type(nvp); 4633 fs_perm_t *fsperm = NULL; 4634 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4635 if (node == NULL) 4636 nomem(); 4637 4638 fsperm = &node->fspn_fsperm; 4639 4640 assert(DATA_TYPE_NVLIST == type); 4641 4642 uu_list_node_init(node, &node->fspn_list_node, 4643 fspset->fsps_list_pool); 4644 4645 idx = uu_list_numnodes(fspset->fsps_list); 4646 fs_perm_init(fsperm, fspset, fsname); 4647 4648 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4649 return (-1); 4650 4651 (void) parse_fs_perm(fsperm, nvl2); 4652 4653 uu_list_insert(fspset->fsps_list, node, idx); 4654 } 4655 4656 return (0); 4657 } 4658 4659 static inline const char * 4660 deleg_perm_comment(zfs_deleg_note_t note) 4661 { 4662 const char *str = ""; 4663 4664 /* subcommands */ 4665 switch (note) { 4666 /* SUBCOMMANDS */ 4667 case ZFS_DELEG_NOTE_ALLOW: 4668 str = gettext("Must also have the permission that is being" 4669 "\n\t\t\t\tallowed"); 4670 break; 4671 case ZFS_DELEG_NOTE_CLONE: 4672 str = gettext("Must also have the 'create' ability and 'mount'" 4673 "\n\t\t\t\tability in the origin file system"); 4674 break; 4675 case ZFS_DELEG_NOTE_CREATE: 4676 str = gettext("Must also have the 'mount' ability"); 4677 break; 4678 case ZFS_DELEG_NOTE_DESTROY: 4679 str = gettext("Must also have the 'mount' ability"); 4680 break; 4681 case ZFS_DELEG_NOTE_DIFF: 4682 str = gettext("Allows lookup of paths within a dataset;" 4683 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4684 "\n\t\t\t\tin order to use zfs diff"); 4685 break; 4686 case ZFS_DELEG_NOTE_HOLD: 4687 str = gettext("Allows adding a user hold to a snapshot"); 4688 break; 4689 case ZFS_DELEG_NOTE_MOUNT: 4690 str = gettext("Allows mount/umount of ZFS datasets"); 4691 break; 4692 case ZFS_DELEG_NOTE_PROMOTE: 4693 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4694 " 'promote' ability in the origin file system"); 4695 break; 4696 case ZFS_DELEG_NOTE_RECEIVE: 4697 str = gettext("Must also have the 'mount' and 'create'" 4698 " ability"); 4699 break; 4700 case ZFS_DELEG_NOTE_RELEASE: 4701 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4702 "might destroy the snapshot"); 4703 break; 4704 case ZFS_DELEG_NOTE_RENAME: 4705 str = gettext("Must also have the 'mount' and 'create'" 4706 "\n\t\t\t\tability in the new parent"); 4707 break; 4708 case ZFS_DELEG_NOTE_ROLLBACK: 4709 str = gettext(""); 4710 break; 4711 case ZFS_DELEG_NOTE_SEND: 4712 str = gettext(""); 4713 break; 4714 case ZFS_DELEG_NOTE_SHARE: 4715 str = gettext("Allows sharing file systems over NFS or SMB" 4716 "\n\t\t\t\tprotocols"); 4717 break; 4718 case ZFS_DELEG_NOTE_SNAPSHOT: 4719 str = gettext(""); 4720 break; 4721 /* 4722 * case ZFS_DELEG_NOTE_VSCAN: 4723 * str = gettext(""); 4724 * break; 4725 */ 4726 /* OTHER */ 4727 case ZFS_DELEG_NOTE_GROUPQUOTA: 4728 str = gettext("Allows accessing any groupquota@... property"); 4729 break; 4730 case ZFS_DELEG_NOTE_GROUPUSED: 4731 str = gettext("Allows reading any groupused@... property"); 4732 break; 4733 case ZFS_DELEG_NOTE_USERPROP: 4734 str = gettext("Allows changing any user property"); 4735 break; 4736 case ZFS_DELEG_NOTE_USERQUOTA: 4737 str = gettext("Allows accessing any userquota@... property"); 4738 break; 4739 case ZFS_DELEG_NOTE_USERUSED: 4740 str = gettext("Allows reading any userused@... property"); 4741 break; 4742 /* other */ 4743 default: 4744 str = ""; 4745 } 4746 4747 return (str); 4748 } 4749 4750 struct allow_opts { 4751 boolean_t local; 4752 boolean_t descend; 4753 boolean_t user; 4754 boolean_t group; 4755 boolean_t everyone; 4756 boolean_t create; 4757 boolean_t set; 4758 boolean_t recursive; /* unallow only */ 4759 boolean_t prt_usage; 4760 4761 boolean_t prt_perms; 4762 char *who; 4763 char *perms; 4764 const char *dataset; 4765 }; 4766 4767 static inline int 4768 prop_cmp(const void *a, const void *b) 4769 { 4770 const char *str1 = *(const char **)a; 4771 const char *str2 = *(const char **)b; 4772 return (strcmp(str1, str2)); 4773 } 4774 4775 static void 4776 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4777 { 4778 const char *opt_desc[] = { 4779 "-h", gettext("show this help message and exit"), 4780 "-l", gettext("set permission locally"), 4781 "-d", gettext("set permission for descents"), 4782 "-u", gettext("set permission for user"), 4783 "-g", gettext("set permission for group"), 4784 "-e", gettext("set permission for everyone"), 4785 "-c", gettext("set create time permission"), 4786 "-s", gettext("define permission set"), 4787 /* unallow only */ 4788 "-r", gettext("remove permissions recursively"), 4789 }; 4790 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4791 size_t allow_size = unallow_size - 2; 4792 const char *props[ZFS_NUM_PROPS]; 4793 int i; 4794 size_t count = 0; 4795 FILE *fp = requested ? stdout : stderr; 4796 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4797 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4798 4799 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4800 HELP_ALLOW)); 4801 (void) fprintf(fp, gettext("Options:\n")); 4802 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4803 const char *opt = opt_desc[i++]; 4804 const char *optdsc = opt_desc[i]; 4805 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4806 } 4807 4808 (void) fprintf(fp, gettext("\nThe following permissions are " 4809 "supported:\n\n")); 4810 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4811 gettext("NOTES")); 4812 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4813 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4814 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4815 const char *perm_type = deleg_perm_type(perm_note); 4816 const char *perm_comment = deleg_perm_comment(perm_note); 4817 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4818 } 4819 4820 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4821 zprop_desc_t *pd = &pdtbl[i]; 4822 if (pd->pd_visible != B_TRUE) 4823 continue; 4824 4825 if (pd->pd_attr == PROP_READONLY) 4826 continue; 4827 4828 props[count++] = pd->pd_name; 4829 } 4830 props[count] = NULL; 4831 4832 qsort(props, count, sizeof (char *), prop_cmp); 4833 4834 for (i = 0; i < count; i++) 4835 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4836 4837 if (msg != NULL) 4838 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4839 4840 exit(requested ? 0 : 2); 4841 } 4842 4843 static inline const char * 4844 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4845 char **permsp) 4846 { 4847 if (un && argc == expected_argc - 1) 4848 *permsp = NULL; 4849 else if (argc == expected_argc) 4850 *permsp = argv[argc - 2]; 4851 else 4852 allow_usage(un, B_FALSE, 4853 gettext("wrong number of parameters\n")); 4854 4855 return (argv[argc - 1]); 4856 } 4857 4858 static void 4859 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4860 { 4861 int uge_sum = opts->user + opts->group + opts->everyone; 4862 int csuge_sum = opts->create + opts->set + uge_sum; 4863 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4864 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4865 4866 if (uge_sum > 1) 4867 allow_usage(un, B_FALSE, 4868 gettext("-u, -g, and -e are mutually exclusive\n")); 4869 4870 if (opts->prt_usage) { 4871 if (argc == 0 && all_sum == 0) 4872 allow_usage(un, B_TRUE, NULL); 4873 else 4874 usage(B_FALSE); 4875 } 4876 4877 if (opts->set) { 4878 if (csuge_sum > 1) 4879 allow_usage(un, B_FALSE, 4880 gettext("invalid options combined with -s\n")); 4881 4882 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4883 if (argv[0][0] != '@') 4884 allow_usage(un, B_FALSE, 4885 gettext("invalid set name: missing '@' prefix\n")); 4886 opts->who = argv[0]; 4887 } else if (opts->create) { 4888 if (ldcsuge_sum > 1) 4889 allow_usage(un, B_FALSE, 4890 gettext("invalid options combined with -c\n")); 4891 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4892 } else if (opts->everyone) { 4893 if (csuge_sum > 1) 4894 allow_usage(un, B_FALSE, 4895 gettext("invalid options combined with -e\n")); 4896 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4897 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4898 == 0) { 4899 opts->everyone = B_TRUE; 4900 argc--; 4901 argv++; 4902 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4903 } else if (argc == 1 && !un) { 4904 opts->prt_perms = B_TRUE; 4905 opts->dataset = argv[argc-1]; 4906 } else { 4907 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4908 opts->who = argv[0]; 4909 } 4910 4911 if (!opts->local && !opts->descend) { 4912 opts->local = B_TRUE; 4913 opts->descend = B_TRUE; 4914 } 4915 } 4916 4917 static void 4918 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4919 const char *who, char *perms, nvlist_t *top_nvl) 4920 { 4921 int i; 4922 char ld[2] = { '\0', '\0' }; 4923 char who_buf[MAXNAMELEN + 32]; 4924 char base_type = '\0'; 4925 char set_type = '\0'; 4926 nvlist_t *base_nvl = NULL; 4927 nvlist_t *set_nvl = NULL; 4928 nvlist_t *nvl; 4929 4930 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4931 nomem(); 4932 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4933 nomem(); 4934 4935 switch (type) { 4936 case ZFS_DELEG_NAMED_SET_SETS: 4937 case ZFS_DELEG_NAMED_SET: 4938 set_type = ZFS_DELEG_NAMED_SET_SETS; 4939 base_type = ZFS_DELEG_NAMED_SET; 4940 ld[0] = ZFS_DELEG_NA; 4941 break; 4942 case ZFS_DELEG_CREATE_SETS: 4943 case ZFS_DELEG_CREATE: 4944 set_type = ZFS_DELEG_CREATE_SETS; 4945 base_type = ZFS_DELEG_CREATE; 4946 ld[0] = ZFS_DELEG_NA; 4947 break; 4948 case ZFS_DELEG_USER_SETS: 4949 case ZFS_DELEG_USER: 4950 set_type = ZFS_DELEG_USER_SETS; 4951 base_type = ZFS_DELEG_USER; 4952 if (local) 4953 ld[0] = ZFS_DELEG_LOCAL; 4954 if (descend) 4955 ld[1] = ZFS_DELEG_DESCENDENT; 4956 break; 4957 case ZFS_DELEG_GROUP_SETS: 4958 case ZFS_DELEG_GROUP: 4959 set_type = ZFS_DELEG_GROUP_SETS; 4960 base_type = ZFS_DELEG_GROUP; 4961 if (local) 4962 ld[0] = ZFS_DELEG_LOCAL; 4963 if (descend) 4964 ld[1] = ZFS_DELEG_DESCENDENT; 4965 break; 4966 case ZFS_DELEG_EVERYONE_SETS: 4967 case ZFS_DELEG_EVERYONE: 4968 set_type = ZFS_DELEG_EVERYONE_SETS; 4969 base_type = ZFS_DELEG_EVERYONE; 4970 if (local) 4971 ld[0] = ZFS_DELEG_LOCAL; 4972 if (descend) 4973 ld[1] = ZFS_DELEG_DESCENDENT; 4974 break; 4975 4976 default: 4977 assert(set_type != '\0' && base_type != '\0'); 4978 } 4979 4980 if (perms != NULL) { 4981 char *curr = perms; 4982 char *end = curr + strlen(perms); 4983 4984 while (curr < end) { 4985 char *delim = strchr(curr, ','); 4986 if (delim == NULL) 4987 delim = end; 4988 else 4989 *delim = '\0'; 4990 4991 if (curr[0] == '@') 4992 nvl = set_nvl; 4993 else 4994 nvl = base_nvl; 4995 4996 (void) nvlist_add_boolean(nvl, curr); 4997 if (delim != end) 4998 *delim = ','; 4999 curr = delim + 1; 5000 } 5001 5002 for (i = 0; i < 2; i++) { 5003 char locality = ld[i]; 5004 if (locality == 0) 5005 continue; 5006 5007 if (!nvlist_empty(base_nvl)) { 5008 if (who != NULL) 5009 (void) snprintf(who_buf, 5010 sizeof (who_buf), "%c%c$%s", 5011 base_type, locality, who); 5012 else 5013 (void) snprintf(who_buf, 5014 sizeof (who_buf), "%c%c$", 5015 base_type, locality); 5016 5017 (void) nvlist_add_nvlist(top_nvl, who_buf, 5018 base_nvl); 5019 } 5020 5021 5022 if (!nvlist_empty(set_nvl)) { 5023 if (who != NULL) 5024 (void) snprintf(who_buf, 5025 sizeof (who_buf), "%c%c$%s", 5026 set_type, locality, who); 5027 else 5028 (void) snprintf(who_buf, 5029 sizeof (who_buf), "%c%c$", 5030 set_type, locality); 5031 5032 (void) nvlist_add_nvlist(top_nvl, who_buf, 5033 set_nvl); 5034 } 5035 } 5036 } else { 5037 for (i = 0; i < 2; i++) { 5038 char locality = ld[i]; 5039 if (locality == 0) 5040 continue; 5041 5042 if (who != NULL) 5043 (void) snprintf(who_buf, sizeof (who_buf), 5044 "%c%c$%s", base_type, locality, who); 5045 else 5046 (void) snprintf(who_buf, sizeof (who_buf), 5047 "%c%c$", base_type, locality); 5048 (void) nvlist_add_boolean(top_nvl, who_buf); 5049 5050 if (who != NULL) 5051 (void) snprintf(who_buf, sizeof (who_buf), 5052 "%c%c$%s", set_type, locality, who); 5053 else 5054 (void) snprintf(who_buf, sizeof (who_buf), 5055 "%c%c$", set_type, locality); 5056 (void) nvlist_add_boolean(top_nvl, who_buf); 5057 } 5058 } 5059 } 5060 5061 static int 5062 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5063 { 5064 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5065 nomem(); 5066 5067 if (opts->set) { 5068 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5069 opts->descend, opts->who, opts->perms, *nvlp); 5070 } else if (opts->create) { 5071 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5072 opts->descend, NULL, opts->perms, *nvlp); 5073 } else if (opts->everyone) { 5074 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5075 opts->descend, NULL, opts->perms, *nvlp); 5076 } else { 5077 char *curr = opts->who; 5078 char *end = curr + strlen(curr); 5079 5080 while (curr < end) { 5081 const char *who; 5082 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5083 char *endch; 5084 char *delim = strchr(curr, ','); 5085 char errbuf[256]; 5086 char id[64]; 5087 struct passwd *p = NULL; 5088 struct group *g = NULL; 5089 5090 uid_t rid; 5091 if (delim == NULL) 5092 delim = end; 5093 else 5094 *delim = '\0'; 5095 5096 rid = (uid_t)strtol(curr, &endch, 0); 5097 if (opts->user) { 5098 who_type = ZFS_DELEG_USER; 5099 if (*endch != '\0') 5100 p = getpwnam(curr); 5101 else 5102 p = getpwuid(rid); 5103 5104 if (p != NULL) 5105 rid = p->pw_uid; 5106 else { 5107 (void) snprintf(errbuf, 256, gettext( 5108 "invalid user %s"), curr); 5109 allow_usage(un, B_TRUE, errbuf); 5110 } 5111 } else if (opts->group) { 5112 who_type = ZFS_DELEG_GROUP; 5113 if (*endch != '\0') 5114 g = getgrnam(curr); 5115 else 5116 g = getgrgid(rid); 5117 5118 if (g != NULL) 5119 rid = g->gr_gid; 5120 else { 5121 (void) snprintf(errbuf, 256, gettext( 5122 "invalid group %s"), curr); 5123 allow_usage(un, B_TRUE, errbuf); 5124 } 5125 } else { 5126 if (*endch != '\0') { 5127 p = getpwnam(curr); 5128 } else { 5129 p = getpwuid(rid); 5130 } 5131 5132 if (p == NULL) { 5133 if (*endch != '\0') { 5134 g = getgrnam(curr); 5135 } else { 5136 g = getgrgid(rid); 5137 } 5138 } 5139 5140 if (p != NULL) { 5141 who_type = ZFS_DELEG_USER; 5142 rid = p->pw_uid; 5143 } else if (g != NULL) { 5144 who_type = ZFS_DELEG_GROUP; 5145 rid = g->gr_gid; 5146 } else { 5147 (void) snprintf(errbuf, 256, gettext( 5148 "invalid user/group %s"), curr); 5149 allow_usage(un, B_TRUE, errbuf); 5150 } 5151 } 5152 5153 (void) sprintf(id, "%u", rid); 5154 who = id; 5155 5156 store_allow_perm(who_type, opts->local, 5157 opts->descend, who, opts->perms, *nvlp); 5158 curr = delim + 1; 5159 } 5160 } 5161 5162 return (0); 5163 } 5164 5165 static void 5166 print_set_creat_perms(uu_avl_t *who_avl) 5167 { 5168 const char *sc_title[] = { 5169 gettext("Permission sets:\n"), 5170 gettext("Create time permissions:\n"), 5171 NULL 5172 }; 5173 const char **title_ptr = sc_title; 5174 who_perm_node_t *who_node = NULL; 5175 int prev_weight = -1; 5176 5177 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5178 who_node = uu_avl_next(who_avl, who_node)) { 5179 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5180 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5181 const char *who_name = who_node->who_perm.who_name; 5182 int weight = who_type2weight(who_type); 5183 boolean_t first = B_TRUE; 5184 deleg_perm_node_t *deleg_node; 5185 5186 if (prev_weight != weight) { 5187 (void) printf(*title_ptr++); 5188 prev_weight = weight; 5189 } 5190 5191 if (who_name == NULL || strnlen(who_name, 1) == 0) 5192 (void) printf("\t"); 5193 else 5194 (void) printf("\t%s ", who_name); 5195 5196 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5197 deleg_node = uu_avl_next(avl, deleg_node)) { 5198 if (first) { 5199 (void) printf("%s", 5200 deleg_node->dpn_perm.dp_name); 5201 first = B_FALSE; 5202 } else 5203 (void) printf(",%s", 5204 deleg_node->dpn_perm.dp_name); 5205 } 5206 5207 (void) printf("\n"); 5208 } 5209 } 5210 5211 static void 5212 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5213 const char *title) 5214 { 5215 who_perm_node_t *who_node = NULL; 5216 boolean_t prt_title = B_TRUE; 5217 uu_avl_walk_t *walk; 5218 5219 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5220 nomem(); 5221 5222 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5223 const char *who_name = who_node->who_perm.who_name; 5224 const char *nice_who_name = who_node->who_perm.who_ug_name; 5225 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5226 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5227 char delim = ' '; 5228 deleg_perm_node_t *deleg_node; 5229 boolean_t prt_who = B_TRUE; 5230 5231 for (deleg_node = uu_avl_first(avl); 5232 deleg_node != NULL; 5233 deleg_node = uu_avl_next(avl, deleg_node)) { 5234 if (local != deleg_node->dpn_perm.dp_local || 5235 descend != deleg_node->dpn_perm.dp_descend) 5236 continue; 5237 5238 if (prt_who) { 5239 const char *who = NULL; 5240 if (prt_title) { 5241 prt_title = B_FALSE; 5242 (void) printf(title); 5243 } 5244 5245 switch (who_type) { 5246 case ZFS_DELEG_USER_SETS: 5247 case ZFS_DELEG_USER: 5248 who = gettext("user"); 5249 if (nice_who_name) 5250 who_name = nice_who_name; 5251 break; 5252 case ZFS_DELEG_GROUP_SETS: 5253 case ZFS_DELEG_GROUP: 5254 who = gettext("group"); 5255 if (nice_who_name) 5256 who_name = nice_who_name; 5257 break; 5258 case ZFS_DELEG_EVERYONE_SETS: 5259 case ZFS_DELEG_EVERYONE: 5260 who = gettext("everyone"); 5261 who_name = NULL; 5262 break; 5263 5264 default: 5265 assert(who != NULL); 5266 } 5267 5268 prt_who = B_FALSE; 5269 if (who_name == NULL) 5270 (void) printf("\t%s", who); 5271 else 5272 (void) printf("\t%s %s", who, who_name); 5273 } 5274 5275 (void) printf("%c%s", delim, 5276 deleg_node->dpn_perm.dp_name); 5277 delim = ','; 5278 } 5279 5280 if (!prt_who) 5281 (void) printf("\n"); 5282 } 5283 5284 uu_avl_walk_end(walk); 5285 } 5286 5287 static void 5288 print_fs_perms(fs_perm_set_t *fspset) 5289 { 5290 fs_perm_node_t *node = NULL; 5291 char buf[MAXNAMELEN + 32]; 5292 const char *dsname = buf; 5293 5294 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5295 node = uu_list_next(fspset->fsps_list, node)) { 5296 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5297 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5298 int left = 0; 5299 5300 (void) snprintf(buf, sizeof (buf), 5301 gettext("---- Permissions on %s "), 5302 node->fspn_fsperm.fsp_name); 5303 (void) printf(dsname); 5304 left = 70 - strlen(buf); 5305 while (left-- > 0) 5306 (void) printf("-"); 5307 (void) printf("\n"); 5308 5309 print_set_creat_perms(sc_avl); 5310 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5311 gettext("Local permissions:\n")); 5312 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5313 gettext("Descendent permissions:\n")); 5314 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5315 gettext("Local+Descendent permissions:\n")); 5316 } 5317 } 5318 5319 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5320 5321 struct deleg_perms { 5322 boolean_t un; 5323 nvlist_t *nvl; 5324 }; 5325 5326 static int 5327 set_deleg_perms(zfs_handle_t *zhp, void *data) 5328 { 5329 struct deleg_perms *perms = (struct deleg_perms *)data; 5330 zfs_type_t zfs_type = zfs_get_type(zhp); 5331 5332 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5333 return (0); 5334 5335 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5336 } 5337 5338 static int 5339 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5340 { 5341 zfs_handle_t *zhp; 5342 nvlist_t *perm_nvl = NULL; 5343 nvlist_t *update_perm_nvl = NULL; 5344 int error = 1; 5345 int c; 5346 struct allow_opts opts = { 0 }; 5347 5348 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5349 5350 /* check opts */ 5351 while ((c = getopt(argc, argv, optstr)) != -1) { 5352 switch (c) { 5353 case 'l': 5354 opts.local = B_TRUE; 5355 break; 5356 case 'd': 5357 opts.descend = B_TRUE; 5358 break; 5359 case 'u': 5360 opts.user = B_TRUE; 5361 break; 5362 case 'g': 5363 opts.group = B_TRUE; 5364 break; 5365 case 'e': 5366 opts.everyone = B_TRUE; 5367 break; 5368 case 's': 5369 opts.set = B_TRUE; 5370 break; 5371 case 'c': 5372 opts.create = B_TRUE; 5373 break; 5374 case 'r': 5375 opts.recursive = B_TRUE; 5376 break; 5377 case ':': 5378 (void) fprintf(stderr, gettext("missing argument for " 5379 "'%c' option\n"), optopt); 5380 usage(B_FALSE); 5381 break; 5382 case 'h': 5383 opts.prt_usage = B_TRUE; 5384 break; 5385 case '?': 5386 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5387 optopt); 5388 usage(B_FALSE); 5389 } 5390 } 5391 5392 argc -= optind; 5393 argv += optind; 5394 5395 /* check arguments */ 5396 parse_allow_args(argc, argv, un, &opts); 5397 5398 /* try to open the dataset */ 5399 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5400 ZFS_TYPE_VOLUME)) == NULL) { 5401 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5402 opts.dataset); 5403 return (-1); 5404 } 5405 5406 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5407 goto cleanup2; 5408 5409 fs_perm_set_init(&fs_perm_set); 5410 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5411 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5412 goto cleanup1; 5413 } 5414 5415 if (opts.prt_perms) 5416 print_fs_perms(&fs_perm_set); 5417 else { 5418 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5419 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5420 goto cleanup0; 5421 5422 if (un && opts.recursive) { 5423 struct deleg_perms data = { un, update_perm_nvl }; 5424 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5425 &data) != 0) 5426 goto cleanup0; 5427 } 5428 } 5429 5430 error = 0; 5431 5432 cleanup0: 5433 nvlist_free(perm_nvl); 5434 nvlist_free(update_perm_nvl); 5435 cleanup1: 5436 fs_perm_set_fini(&fs_perm_set); 5437 cleanup2: 5438 zfs_close(zhp); 5439 5440 return (error); 5441 } 5442 5443 static int 5444 zfs_do_allow(int argc, char **argv) 5445 { 5446 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5447 } 5448 5449 static int 5450 zfs_do_unallow(int argc, char **argv) 5451 { 5452 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5453 } 5454 5455 static int 5456 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5457 { 5458 int errors = 0; 5459 int i; 5460 const char *tag; 5461 boolean_t recursive = B_FALSE; 5462 const char *opts = holding ? "rt" : "r"; 5463 int c; 5464 5465 /* check options */ 5466 while ((c = getopt(argc, argv, opts)) != -1) { 5467 switch (c) { 5468 case 'r': 5469 recursive = B_TRUE; 5470 break; 5471 case '?': 5472 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5473 optopt); 5474 usage(B_FALSE); 5475 } 5476 } 5477 5478 argc -= optind; 5479 argv += optind; 5480 5481 /* check number of arguments */ 5482 if (argc < 2) 5483 usage(B_FALSE); 5484 5485 tag = argv[0]; 5486 --argc; 5487 ++argv; 5488 5489 if (holding && tag[0] == '.') { 5490 /* tags starting with '.' are reserved for libzfs */ 5491 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5492 usage(B_FALSE); 5493 } 5494 5495 for (i = 0; i < argc; ++i) { 5496 zfs_handle_t *zhp; 5497 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5498 const char *delim; 5499 char *path = argv[i]; 5500 5501 delim = strchr(path, '@'); 5502 if (delim == NULL) { 5503 (void) fprintf(stderr, 5504 gettext("'%s' is not a snapshot\n"), path); 5505 ++errors; 5506 continue; 5507 } 5508 (void) strncpy(parent, path, delim - path); 5509 parent[delim - path] = '\0'; 5510 5511 zhp = zfs_open(g_zfs, parent, 5512 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5513 if (zhp == NULL) { 5514 ++errors; 5515 continue; 5516 } 5517 if (holding) { 5518 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5519 ++errors; 5520 } else { 5521 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5522 ++errors; 5523 } 5524 zfs_close(zhp); 5525 } 5526 5527 return (errors != 0); 5528 } 5529 5530 /* 5531 * zfs hold [-r] [-t] <tag> <snap> ... 5532 * 5533 * -r Recursively hold 5534 * 5535 * Apply a user-hold with the given tag to the list of snapshots. 5536 */ 5537 static int 5538 zfs_do_hold(int argc, char **argv) 5539 { 5540 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5541 } 5542 5543 /* 5544 * zfs release [-r] <tag> <snap> ... 5545 * 5546 * -r Recursively release 5547 * 5548 * Release a user-hold with the given tag from the list of snapshots. 5549 */ 5550 static int 5551 zfs_do_release(int argc, char **argv) 5552 { 5553 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5554 } 5555 5556 typedef struct holds_cbdata { 5557 boolean_t cb_recursive; 5558 const char *cb_snapname; 5559 nvlist_t **cb_nvlp; 5560 size_t cb_max_namelen; 5561 size_t cb_max_taglen; 5562 } holds_cbdata_t; 5563 5564 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5565 #define DATETIME_BUF_LEN (32) 5566 /* 5567 * 5568 */ 5569 static void 5570 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5571 { 5572 int i; 5573 nvpair_t *nvp = NULL; 5574 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5575 const char *col; 5576 5577 if (!scripted) { 5578 for (i = 0; i < 3; i++) { 5579 col = gettext(hdr_cols[i]); 5580 if (i < 2) 5581 (void) printf("%-*s ", i ? tagwidth : nwidth, 5582 col); 5583 else 5584 (void) printf("%s\n", col); 5585 } 5586 } 5587 5588 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5589 char *zname = nvpair_name(nvp); 5590 nvlist_t *nvl2; 5591 nvpair_t *nvp2 = NULL; 5592 (void) nvpair_value_nvlist(nvp, &nvl2); 5593 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5594 char tsbuf[DATETIME_BUF_LEN]; 5595 char *tagname = nvpair_name(nvp2); 5596 uint64_t val = 0; 5597 time_t time; 5598 struct tm t; 5599 char sep = scripted ? '\t' : ' '; 5600 size_t sepnum = scripted ? 1 : 2; 5601 5602 (void) nvpair_value_uint64(nvp2, &val); 5603 time = (time_t)val; 5604 (void) localtime_r(&time, &t); 5605 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5606 gettext(STRFTIME_FMT_STR), &t); 5607 5608 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5609 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5610 } 5611 } 5612 } 5613 5614 /* 5615 * Generic callback function to list a dataset or snapshot. 5616 */ 5617 static int 5618 holds_callback(zfs_handle_t *zhp, void *data) 5619 { 5620 holds_cbdata_t *cbp = data; 5621 nvlist_t *top_nvl = *cbp->cb_nvlp; 5622 nvlist_t *nvl = NULL; 5623 nvpair_t *nvp = NULL; 5624 const char *zname = zfs_get_name(zhp); 5625 size_t znamelen = strlen(zname); 5626 5627 if (cbp->cb_recursive) { 5628 const char *snapname; 5629 char *delim = strchr(zname, '@'); 5630 if (delim == NULL) 5631 return (0); 5632 5633 snapname = delim + 1; 5634 if (strcmp(cbp->cb_snapname, snapname)) 5635 return (0); 5636 } 5637 5638 if (zfs_get_holds(zhp, &nvl) != 0) 5639 return (-1); 5640 5641 if (znamelen > cbp->cb_max_namelen) 5642 cbp->cb_max_namelen = znamelen; 5643 5644 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5645 const char *tag = nvpair_name(nvp); 5646 size_t taglen = strlen(tag); 5647 if (taglen > cbp->cb_max_taglen) 5648 cbp->cb_max_taglen = taglen; 5649 } 5650 5651 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5652 } 5653 5654 /* 5655 * zfs holds [-r] <snap> ... 5656 * 5657 * -r Recursively hold 5658 */ 5659 static int 5660 zfs_do_holds(int argc, char **argv) 5661 { 5662 int errors = 0; 5663 int c; 5664 int i; 5665 boolean_t scripted = B_FALSE; 5666 boolean_t recursive = B_FALSE; 5667 const char *opts = "rH"; 5668 nvlist_t *nvl; 5669 5670 int types = ZFS_TYPE_SNAPSHOT; 5671 holds_cbdata_t cb = { 0 }; 5672 5673 int limit = 0; 5674 int ret = 0; 5675 int flags = 0; 5676 5677 /* check options */ 5678 while ((c = getopt(argc, argv, opts)) != -1) { 5679 switch (c) { 5680 case 'r': 5681 recursive = B_TRUE; 5682 break; 5683 case 'H': 5684 scripted = B_TRUE; 5685 break; 5686 case '?': 5687 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5688 optopt); 5689 usage(B_FALSE); 5690 } 5691 } 5692 5693 if (recursive) { 5694 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5695 flags |= ZFS_ITER_RECURSE; 5696 } 5697 5698 argc -= optind; 5699 argv += optind; 5700 5701 /* check number of arguments */ 5702 if (argc < 1) 5703 usage(B_FALSE); 5704 5705 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5706 nomem(); 5707 5708 for (i = 0; i < argc; ++i) { 5709 char *snapshot = argv[i]; 5710 const char *delim; 5711 const char *snapname; 5712 5713 delim = strchr(snapshot, '@'); 5714 if (delim == NULL) { 5715 (void) fprintf(stderr, 5716 gettext("'%s' is not a snapshot\n"), snapshot); 5717 ++errors; 5718 continue; 5719 } 5720 snapname = delim + 1; 5721 if (recursive) 5722 snapshot[delim - snapshot] = '\0'; 5723 5724 cb.cb_recursive = recursive; 5725 cb.cb_snapname = snapname; 5726 cb.cb_nvlp = &nvl; 5727 5728 /* 5729 * 1. collect holds data, set format options 5730 */ 5731 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5732 holds_callback, &cb); 5733 if (ret != 0) 5734 ++errors; 5735 } 5736 5737 /* 5738 * 2. print holds data 5739 */ 5740 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5741 5742 if (nvlist_empty(nvl)) 5743 (void) printf(gettext("no datasets available\n")); 5744 5745 nvlist_free(nvl); 5746 5747 return (0 != errors); 5748 } 5749 5750 #define CHECK_SPINNER 30 5751 #define SPINNER_TIME 3 /* seconds */ 5752 #define MOUNT_TIME 5 /* seconds */ 5753 5754 static int 5755 get_one_dataset(zfs_handle_t *zhp, void *data) 5756 { 5757 static char *spin[] = { "-", "\\", "|", "/" }; 5758 static int spinval = 0; 5759 static int spincheck = 0; 5760 static time_t last_spin_time = (time_t)0; 5761 get_all_cb_t *cbp = data; 5762 zfs_type_t type = zfs_get_type(zhp); 5763 5764 if (cbp->cb_verbose) { 5765 if (--spincheck < 0) { 5766 time_t now = time(NULL); 5767 if (last_spin_time + SPINNER_TIME < now) { 5768 update_progress(spin[spinval++ % 4]); 5769 last_spin_time = now; 5770 } 5771 spincheck = CHECK_SPINNER; 5772 } 5773 } 5774 5775 /* 5776 * Interate over any nested datasets. 5777 */ 5778 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5779 zfs_close(zhp); 5780 return (1); 5781 } 5782 5783 /* 5784 * Skip any datasets whose type does not match. 5785 */ 5786 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5787 zfs_close(zhp); 5788 return (0); 5789 } 5790 libzfs_add_handle(cbp, zhp); 5791 assert(cbp->cb_used <= cbp->cb_alloc); 5792 5793 return (0); 5794 } 5795 5796 static void 5797 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5798 { 5799 get_all_cb_t cb = { 0 }; 5800 cb.cb_verbose = verbose; 5801 cb.cb_getone = get_one_dataset; 5802 5803 if (verbose) 5804 set_progress_header(gettext("Reading ZFS config")); 5805 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5806 5807 *dslist = cb.cb_handles; 5808 *count = cb.cb_used; 5809 5810 if (verbose) 5811 finish_progress(gettext("done.")); 5812 } 5813 5814 /* 5815 * Generic callback for sharing or mounting filesystems. Because the code is so 5816 * similar, we have a common function with an extra parameter to determine which 5817 * mode we are using. 5818 */ 5819 #define OP_SHARE 0x1 5820 #define OP_MOUNT 0x2 5821 5822 /* 5823 * Share or mount a dataset. 5824 */ 5825 static int 5826 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5827 boolean_t explicit, const char *options) 5828 { 5829 char mountpoint[ZFS_MAXPROPLEN]; 5830 char shareopts[ZFS_MAXPROPLEN]; 5831 char smbshareopts[ZFS_MAXPROPLEN]; 5832 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5833 struct mnttab mnt; 5834 uint64_t zoned, canmount; 5835 boolean_t shared_nfs, shared_smb; 5836 5837 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5838 5839 /* 5840 * Check to make sure we can mount/share this dataset. If we 5841 * are in the global zone and the filesystem is exported to a 5842 * local zone, or if we are in a local zone and the 5843 * filesystem is not exported, then it is an error. 5844 */ 5845 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5846 5847 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5848 if (!explicit) 5849 return (0); 5850 5851 (void) fprintf(stderr, gettext("cannot %s '%s': " 5852 "dataset is exported to a local zone\n"), cmdname, 5853 zfs_get_name(zhp)); 5854 return (1); 5855 5856 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5857 if (!explicit) 5858 return (0); 5859 5860 (void) fprintf(stderr, gettext("cannot %s '%s': " 5861 "permission denied\n"), cmdname, 5862 zfs_get_name(zhp)); 5863 return (1); 5864 } 5865 5866 /* 5867 * Ignore any filesystems which don't apply to us. This 5868 * includes those with a legacy mountpoint, or those with 5869 * legacy share options. 5870 */ 5871 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5872 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5873 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5874 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5875 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5876 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5877 5878 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5879 strcmp(smbshareopts, "off") == 0) { 5880 if (!explicit) 5881 return (0); 5882 5883 (void) fprintf(stderr, gettext("cannot share '%s': " 5884 "legacy share\n"), zfs_get_name(zhp)); 5885 (void) fprintf(stderr, gettext("use share(1M) to " 5886 "share this filesystem, or set " 5887 "sharenfs property on\n")); 5888 return (1); 5889 } 5890 5891 /* 5892 * We cannot share or mount legacy filesystems. If the 5893 * shareopts is non-legacy but the mountpoint is legacy, we 5894 * treat it as a legacy share. 5895 */ 5896 if (strcmp(mountpoint, "legacy") == 0) { 5897 if (!explicit) 5898 return (0); 5899 5900 (void) fprintf(stderr, gettext("cannot %s '%s': " 5901 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5902 (void) fprintf(stderr, gettext("use %s(1M) to " 5903 "%s this filesystem\n"), cmdname, cmdname); 5904 return (1); 5905 } 5906 5907 if (strcmp(mountpoint, "none") == 0) { 5908 if (!explicit) 5909 return (0); 5910 5911 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5912 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5913 return (1); 5914 } 5915 5916 /* 5917 * canmount explicit outcome 5918 * on no pass through 5919 * on yes pass through 5920 * off no return 0 5921 * off yes display error, return 1 5922 * noauto no return 0 5923 * noauto yes pass through 5924 */ 5925 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5926 if (canmount == ZFS_CANMOUNT_OFF) { 5927 if (!explicit) 5928 return (0); 5929 5930 (void) fprintf(stderr, gettext("cannot %s '%s': " 5931 "'canmount' property is set to 'off'\n"), cmdname, 5932 zfs_get_name(zhp)); 5933 return (1); 5934 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5935 return (0); 5936 } 5937 5938 /* 5939 * If this filesystem is inconsistent and has a receive resume 5940 * token, we can not mount it. 5941 */ 5942 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5943 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5944 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5945 if (!explicit) 5946 return (0); 5947 5948 (void) fprintf(stderr, gettext("cannot %s '%s': " 5949 "Contains partially-completed state from " 5950 "\"zfs receive -r\", which can be resumed with " 5951 "\"zfs send -t\"\n"), 5952 cmdname, zfs_get_name(zhp)); 5953 return (1); 5954 } 5955 5956 /* 5957 * At this point, we have verified that the mountpoint and/or 5958 * shareopts are appropriate for auto management. If the 5959 * filesystem is already mounted or shared, return (failing 5960 * for explicit requests); otherwise mount or share the 5961 * filesystem. 5962 */ 5963 switch (op) { 5964 case OP_SHARE: 5965 5966 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5967 shared_smb = zfs_is_shared_smb(zhp, NULL); 5968 5969 if ((shared_nfs && shared_smb) || 5970 (shared_nfs && strcmp(shareopts, "on") == 0 && 5971 strcmp(smbshareopts, "off") == 0) || 5972 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5973 strcmp(shareopts, "off") == 0)) { 5974 if (!explicit) 5975 return (0); 5976 5977 (void) fprintf(stderr, gettext("cannot share " 5978 "'%s': filesystem already shared\n"), 5979 zfs_get_name(zhp)); 5980 return (1); 5981 } 5982 5983 if (!zfs_is_mounted(zhp, NULL) && 5984 zfs_mount(zhp, NULL, 0) != 0) 5985 return (1); 5986 5987 if (protocol == NULL) { 5988 if (zfs_shareall(zhp) != 0) 5989 return (1); 5990 } else if (strcmp(protocol, "nfs") == 0) { 5991 if (zfs_share_nfs(zhp)) 5992 return (1); 5993 } else if (strcmp(protocol, "smb") == 0) { 5994 if (zfs_share_smb(zhp)) 5995 return (1); 5996 } else { 5997 (void) fprintf(stderr, gettext("cannot share " 5998 "'%s': invalid share type '%s' " 5999 "specified\n"), 6000 zfs_get_name(zhp), protocol); 6001 return (1); 6002 } 6003 6004 break; 6005 6006 case OP_MOUNT: 6007 if (options == NULL) 6008 mnt.mnt_mntopts = ""; 6009 else 6010 mnt.mnt_mntopts = (char *)options; 6011 6012 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6013 zfs_is_mounted(zhp, NULL)) { 6014 if (!explicit) 6015 return (0); 6016 6017 (void) fprintf(stderr, gettext("cannot mount " 6018 "'%s': filesystem already mounted\n"), 6019 zfs_get_name(zhp)); 6020 return (1); 6021 } 6022 6023 if (zfs_mount(zhp, options, flags) != 0) 6024 return (1); 6025 break; 6026 } 6027 6028 return (0); 6029 } 6030 6031 /* 6032 * Reports progress in the form "(current/total)". Not thread-safe. 6033 */ 6034 static void 6035 report_mount_progress(int current, int total) 6036 { 6037 static time_t last_progress_time = 0; 6038 time_t now = time(NULL); 6039 char info[32]; 6040 6041 /* report 1..n instead of 0..n-1 */ 6042 ++current; 6043 6044 /* display header if we're here for the first time */ 6045 if (current == 1) { 6046 set_progress_header(gettext("Mounting ZFS filesystems")); 6047 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6048 /* too soon to report again */ 6049 return; 6050 } 6051 6052 last_progress_time = now; 6053 6054 (void) sprintf(info, "(%d/%d)", current, total); 6055 6056 if (current == total) 6057 finish_progress(info); 6058 else 6059 update_progress(info); 6060 } 6061 6062 static void 6063 append_options(char *mntopts, char *newopts) 6064 { 6065 int len = strlen(mntopts); 6066 6067 /* original length plus new string to append plus 1 for the comma */ 6068 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6069 (void) fprintf(stderr, gettext("the opts argument for " 6070 "'%c' option is too long (more than %d chars)\n"), 6071 "-o", MNT_LINE_MAX); 6072 usage(B_FALSE); 6073 } 6074 6075 if (*mntopts) 6076 mntopts[len++] = ','; 6077 6078 (void) strcpy(&mntopts[len], newopts); 6079 } 6080 6081 static int 6082 share_mount(int op, int argc, char **argv) 6083 { 6084 int do_all = 0; 6085 boolean_t verbose = B_FALSE; 6086 int c, ret = 0; 6087 char *options = NULL; 6088 int flags = 0; 6089 6090 /* check options */ 6091 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6092 != -1) { 6093 switch (c) { 6094 case 'a': 6095 do_all = 1; 6096 break; 6097 case 'v': 6098 verbose = B_TRUE; 6099 break; 6100 case 'o': 6101 if (*optarg == '\0') { 6102 (void) fprintf(stderr, gettext("empty mount " 6103 "options (-o) specified\n")); 6104 usage(B_FALSE); 6105 } 6106 6107 if (options == NULL) 6108 options = safe_malloc(MNT_LINE_MAX + 1); 6109 6110 /* option validation is done later */ 6111 append_options(options, optarg); 6112 break; 6113 6114 case 'O': 6115 flags |= MS_OVERLAY; 6116 break; 6117 case ':': 6118 (void) fprintf(stderr, gettext("missing argument for " 6119 "'%c' option\n"), optopt); 6120 usage(B_FALSE); 6121 break; 6122 case '?': 6123 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6124 optopt); 6125 usage(B_FALSE); 6126 } 6127 } 6128 6129 argc -= optind; 6130 argv += optind; 6131 6132 /* check number of arguments */ 6133 if (do_all) { 6134 zfs_handle_t **dslist = NULL; 6135 size_t i, count = 0; 6136 char *protocol = NULL; 6137 6138 if (op == OP_SHARE && argc > 0) { 6139 if (strcmp(argv[0], "nfs") != 0 && 6140 strcmp(argv[0], "smb") != 0) { 6141 (void) fprintf(stderr, gettext("share type " 6142 "must be 'nfs' or 'smb'\n")); 6143 usage(B_FALSE); 6144 } 6145 protocol = argv[0]; 6146 argc--; 6147 argv++; 6148 } 6149 6150 if (argc != 0) { 6151 (void) fprintf(stderr, gettext("too many arguments\n")); 6152 usage(B_FALSE); 6153 } 6154 6155 start_progress_timer(); 6156 get_all_datasets(&dslist, &count, verbose); 6157 6158 if (count == 0) 6159 return (0); 6160 6161 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6162 sa_init_selective_arg_t sharearg; 6163 sharearg.zhandle_arr = dslist; 6164 sharearg.zhandle_len = count; 6165 if ((ret = zfs_init_libshare_arg(zfs_get_handle(dslist[0]), 6166 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6167 (void) fprintf(stderr, 6168 gettext("Could not initialize libshare, %d"), ret); 6169 return (ret); 6170 } 6171 6172 for (i = 0; i < count; i++) { 6173 if (verbose) 6174 report_mount_progress(i, count); 6175 6176 if (share_mount_one(dslist[i], op, flags, protocol, 6177 B_FALSE, options) != 0) 6178 ret = 1; 6179 zfs_close(dslist[i]); 6180 } 6181 6182 free(dslist); 6183 } else if (argc == 0) { 6184 struct mnttab entry; 6185 6186 if ((op == OP_SHARE) || (options != NULL)) { 6187 (void) fprintf(stderr, gettext("missing filesystem " 6188 "argument (specify -a for all)\n")); 6189 usage(B_FALSE); 6190 } 6191 6192 /* 6193 * When mount is given no arguments, go through /etc/mnttab and 6194 * display any active ZFS mounts. We hide any snapshots, since 6195 * they are controlled automatically. 6196 */ 6197 rewind(mnttab_file); 6198 while (getmntent(mnttab_file, &entry) == 0) { 6199 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6200 strchr(entry.mnt_special, '@') != NULL) 6201 continue; 6202 6203 (void) printf("%-30s %s\n", entry.mnt_special, 6204 entry.mnt_mountp); 6205 } 6206 6207 } else { 6208 zfs_handle_t *zhp; 6209 6210 if (argc > 1) { 6211 (void) fprintf(stderr, 6212 gettext("too many arguments\n")); 6213 usage(B_FALSE); 6214 } 6215 6216 if ((zhp = zfs_open(g_zfs, argv[0], 6217 ZFS_TYPE_FILESYSTEM)) == NULL) { 6218 ret = 1; 6219 } else { 6220 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6221 options); 6222 zfs_close(zhp); 6223 } 6224 } 6225 6226 return (ret); 6227 } 6228 6229 /* 6230 * zfs mount -a [nfs] 6231 * zfs mount filesystem 6232 * 6233 * Mount all filesystems, or mount the given filesystem. 6234 */ 6235 static int 6236 zfs_do_mount(int argc, char **argv) 6237 { 6238 return (share_mount(OP_MOUNT, argc, argv)); 6239 } 6240 6241 /* 6242 * zfs share -a [nfs | smb] 6243 * zfs share filesystem 6244 * 6245 * Share all filesystems, or share the given filesystem. 6246 */ 6247 static int 6248 zfs_do_share(int argc, char **argv) 6249 { 6250 return (share_mount(OP_SHARE, argc, argv)); 6251 } 6252 6253 typedef struct unshare_unmount_node { 6254 zfs_handle_t *un_zhp; 6255 char *un_mountp; 6256 uu_avl_node_t un_avlnode; 6257 } unshare_unmount_node_t; 6258 6259 /* ARGSUSED */ 6260 static int 6261 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6262 { 6263 const unshare_unmount_node_t *l = larg; 6264 const unshare_unmount_node_t *r = rarg; 6265 6266 return (strcmp(l->un_mountp, r->un_mountp)); 6267 } 6268 6269 /* 6270 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6271 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6272 * and unmount it appropriately. 6273 */ 6274 static int 6275 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6276 { 6277 zfs_handle_t *zhp; 6278 int ret = 0; 6279 struct stat64 statbuf; 6280 struct extmnttab entry; 6281 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6282 ino_t path_inode; 6283 6284 /* 6285 * Search for the path in /etc/mnttab. Rather than looking for the 6286 * specific path, which can be fooled by non-standard paths (i.e. ".." 6287 * or "//"), we stat() the path and search for the corresponding 6288 * (major,minor) device pair. 6289 */ 6290 if (stat64(path, &statbuf) != 0) { 6291 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6292 cmdname, path, strerror(errno)); 6293 return (1); 6294 } 6295 path_inode = statbuf.st_ino; 6296 6297 /* 6298 * Search for the given (major,minor) pair in the mount table. 6299 */ 6300 rewind(mnttab_file); 6301 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6302 if (entry.mnt_major == major(statbuf.st_dev) && 6303 entry.mnt_minor == minor(statbuf.st_dev)) 6304 break; 6305 } 6306 if (ret != 0) { 6307 if (op == OP_SHARE) { 6308 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6309 "currently mounted\n"), cmdname, path); 6310 return (1); 6311 } 6312 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6313 path); 6314 if ((ret = umount2(path, flags)) != 0) 6315 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6316 strerror(errno)); 6317 return (ret != 0); 6318 } 6319 6320 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6321 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6322 "filesystem\n"), cmdname, path); 6323 return (1); 6324 } 6325 6326 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6327 ZFS_TYPE_FILESYSTEM)) == NULL) 6328 return (1); 6329 6330 ret = 1; 6331 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6332 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6333 cmdname, path, strerror(errno)); 6334 goto out; 6335 } else if (statbuf.st_ino != path_inode) { 6336 (void) fprintf(stderr, gettext("cannot " 6337 "%s '%s': not a mountpoint\n"), cmdname, path); 6338 goto out; 6339 } 6340 6341 if (op == OP_SHARE) { 6342 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6343 char smbshare_prop[ZFS_MAXPROPLEN]; 6344 6345 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6346 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6347 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6348 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6349 6350 if (strcmp(nfs_mnt_prop, "off") == 0 && 6351 strcmp(smbshare_prop, "off") == 0) { 6352 (void) fprintf(stderr, gettext("cannot unshare " 6353 "'%s': legacy share\n"), path); 6354 (void) fprintf(stderr, gettext("use " 6355 "unshare(1M) to unshare this filesystem\n")); 6356 } else if (!zfs_is_shared(zhp)) { 6357 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6358 "not currently shared\n"), path); 6359 } else { 6360 ret = zfs_unshareall_bypath(zhp, path); 6361 } 6362 } else { 6363 char mtpt_prop[ZFS_MAXPROPLEN]; 6364 6365 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6366 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6367 6368 if (is_manual) { 6369 ret = zfs_unmount(zhp, NULL, flags); 6370 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6371 (void) fprintf(stderr, gettext("cannot unmount " 6372 "'%s': legacy mountpoint\n"), 6373 zfs_get_name(zhp)); 6374 (void) fprintf(stderr, gettext("use umount(1M) " 6375 "to unmount this filesystem\n")); 6376 } else { 6377 ret = zfs_unmountall(zhp, flags); 6378 } 6379 } 6380 6381 out: 6382 zfs_close(zhp); 6383 6384 return (ret != 0); 6385 } 6386 6387 /* 6388 * Generic callback for unsharing or unmounting a filesystem. 6389 */ 6390 static int 6391 unshare_unmount(int op, int argc, char **argv) 6392 { 6393 int do_all = 0; 6394 int flags = 0; 6395 int ret = 0; 6396 int c; 6397 zfs_handle_t *zhp; 6398 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6399 char sharesmb[ZFS_MAXPROPLEN]; 6400 6401 /* check options */ 6402 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6403 switch (c) { 6404 case 'a': 6405 do_all = 1; 6406 break; 6407 case 'f': 6408 flags = MS_FORCE; 6409 break; 6410 case '?': 6411 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6412 optopt); 6413 usage(B_FALSE); 6414 } 6415 } 6416 6417 argc -= optind; 6418 argv += optind; 6419 6420 if (do_all) { 6421 /* 6422 * We could make use of zfs_for_each() to walk all datasets in 6423 * the system, but this would be very inefficient, especially 6424 * since we would have to linearly search /etc/mnttab for each 6425 * one. Instead, do one pass through /etc/mnttab looking for 6426 * zfs entries and call zfs_unmount() for each one. 6427 * 6428 * Things get a little tricky if the administrator has created 6429 * mountpoints beneath other ZFS filesystems. In this case, we 6430 * have to unmount the deepest filesystems first. To accomplish 6431 * this, we place all the mountpoints in an AVL tree sorted by 6432 * the special type (dataset name), and walk the result in 6433 * reverse to make sure to get any snapshots first. 6434 */ 6435 struct mnttab entry; 6436 uu_avl_pool_t *pool; 6437 uu_avl_t *tree = NULL; 6438 unshare_unmount_node_t *node; 6439 uu_avl_index_t idx; 6440 uu_avl_walk_t *walk; 6441 6442 if (argc != 0) { 6443 (void) fprintf(stderr, gettext("too many arguments\n")); 6444 usage(B_FALSE); 6445 } 6446 6447 if (((pool = uu_avl_pool_create("unmount_pool", 6448 sizeof (unshare_unmount_node_t), 6449 offsetof(unshare_unmount_node_t, un_avlnode), 6450 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6451 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6452 nomem(); 6453 6454 rewind(mnttab_file); 6455 while (getmntent(mnttab_file, &entry) == 0) { 6456 6457 /* ignore non-ZFS entries */ 6458 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6459 continue; 6460 6461 /* ignore snapshots */ 6462 if (strchr(entry.mnt_special, '@') != NULL) 6463 continue; 6464 6465 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6466 ZFS_TYPE_FILESYSTEM)) == NULL) { 6467 ret = 1; 6468 continue; 6469 } 6470 6471 /* 6472 * Ignore datasets that are excluded/restricted by 6473 * parent pool name. 6474 */ 6475 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6476 zfs_close(zhp); 6477 continue; 6478 } 6479 6480 switch (op) { 6481 case OP_SHARE: 6482 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6483 nfs_mnt_prop, 6484 sizeof (nfs_mnt_prop), 6485 NULL, NULL, 0, B_FALSE) == 0); 6486 if (strcmp(nfs_mnt_prop, "off") != 0) 6487 break; 6488 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6489 nfs_mnt_prop, 6490 sizeof (nfs_mnt_prop), 6491 NULL, NULL, 0, B_FALSE) == 0); 6492 if (strcmp(nfs_mnt_prop, "off") == 0) 6493 continue; 6494 break; 6495 case OP_MOUNT: 6496 /* Ignore legacy mounts */ 6497 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6498 nfs_mnt_prop, 6499 sizeof (nfs_mnt_prop), 6500 NULL, NULL, 0, B_FALSE) == 0); 6501 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6502 continue; 6503 /* Ignore canmount=noauto mounts */ 6504 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6505 ZFS_CANMOUNT_NOAUTO) 6506 continue; 6507 default: 6508 break; 6509 } 6510 6511 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6512 node->un_zhp = zhp; 6513 node->un_mountp = safe_strdup(entry.mnt_mountp); 6514 6515 uu_avl_node_init(node, &node->un_avlnode, pool); 6516 6517 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6518 uu_avl_insert(tree, node, idx); 6519 } else { 6520 zfs_close(node->un_zhp); 6521 free(node->un_mountp); 6522 free(node); 6523 } 6524 } 6525 6526 /* 6527 * Walk the AVL tree in reverse, unmounting each filesystem and 6528 * removing it from the AVL tree in the process. 6529 */ 6530 if ((walk = uu_avl_walk_start(tree, 6531 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6532 nomem(); 6533 6534 while ((node = uu_avl_walk_next(walk)) != NULL) { 6535 uu_avl_remove(tree, node); 6536 6537 switch (op) { 6538 case OP_SHARE: 6539 if (zfs_unshareall_bypath(node->un_zhp, 6540 node->un_mountp) != 0) 6541 ret = 1; 6542 break; 6543 6544 case OP_MOUNT: 6545 if (zfs_unmount(node->un_zhp, 6546 node->un_mountp, flags) != 0) 6547 ret = 1; 6548 break; 6549 } 6550 6551 zfs_close(node->un_zhp); 6552 free(node->un_mountp); 6553 free(node); 6554 } 6555 6556 uu_avl_walk_end(walk); 6557 uu_avl_destroy(tree); 6558 uu_avl_pool_destroy(pool); 6559 6560 } else { 6561 if (argc != 1) { 6562 if (argc == 0) 6563 (void) fprintf(stderr, 6564 gettext("missing filesystem argument\n")); 6565 else 6566 (void) fprintf(stderr, 6567 gettext("too many arguments\n")); 6568 usage(B_FALSE); 6569 } 6570 6571 /* 6572 * We have an argument, but it may be a full path or a ZFS 6573 * filesystem. Pass full paths off to unmount_path() (shared by 6574 * manual_unmount), otherwise open the filesystem and pass to 6575 * zfs_unmount(). 6576 */ 6577 if (argv[0][0] == '/') 6578 return (unshare_unmount_path(op, argv[0], 6579 flags, B_FALSE)); 6580 6581 if ((zhp = zfs_open(g_zfs, argv[0], 6582 ZFS_TYPE_FILESYSTEM)) == NULL) 6583 return (1); 6584 6585 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6586 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6587 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6588 NULL, 0, B_FALSE) == 0); 6589 6590 switch (op) { 6591 case OP_SHARE: 6592 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6593 nfs_mnt_prop, 6594 sizeof (nfs_mnt_prop), 6595 NULL, NULL, 0, B_FALSE) == 0); 6596 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6597 sharesmb, sizeof (sharesmb), NULL, NULL, 6598 0, B_FALSE) == 0); 6599 6600 if (strcmp(nfs_mnt_prop, "off") == 0 && 6601 strcmp(sharesmb, "off") == 0) { 6602 (void) fprintf(stderr, gettext("cannot " 6603 "unshare '%s': legacy share\n"), 6604 zfs_get_name(zhp)); 6605 (void) fprintf(stderr, gettext("use " 6606 "unshare(1M) to unshare this " 6607 "filesystem\n")); 6608 ret = 1; 6609 } else if (!zfs_is_shared(zhp)) { 6610 (void) fprintf(stderr, gettext("cannot " 6611 "unshare '%s': not currently " 6612 "shared\n"), zfs_get_name(zhp)); 6613 ret = 1; 6614 } else if (zfs_unshareall(zhp) != 0) { 6615 ret = 1; 6616 } 6617 break; 6618 6619 case OP_MOUNT: 6620 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6621 (void) fprintf(stderr, gettext("cannot " 6622 "unmount '%s': legacy " 6623 "mountpoint\n"), zfs_get_name(zhp)); 6624 (void) fprintf(stderr, gettext("use " 6625 "umount(1M) to unmount this " 6626 "filesystem\n")); 6627 ret = 1; 6628 } else if (!zfs_is_mounted(zhp, NULL)) { 6629 (void) fprintf(stderr, gettext("cannot " 6630 "unmount '%s': not currently " 6631 "mounted\n"), 6632 zfs_get_name(zhp)); 6633 ret = 1; 6634 } else if (zfs_unmountall(zhp, flags) != 0) { 6635 ret = 1; 6636 } 6637 break; 6638 } 6639 6640 zfs_close(zhp); 6641 } 6642 6643 return (ret); 6644 } 6645 6646 /* 6647 * zfs unmount -a 6648 * zfs unmount filesystem 6649 * 6650 * Unmount all filesystems, or a specific ZFS filesystem. 6651 */ 6652 static int 6653 zfs_do_unmount(int argc, char **argv) 6654 { 6655 return (unshare_unmount(OP_MOUNT, argc, argv)); 6656 } 6657 6658 /* 6659 * zfs unshare -a 6660 * zfs unshare filesystem 6661 * 6662 * Unshare all filesystems, or a specific ZFS filesystem. 6663 */ 6664 static int 6665 zfs_do_unshare(int argc, char **argv) 6666 { 6667 return (unshare_unmount(OP_SHARE, argc, argv)); 6668 } 6669 6670 /* 6671 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6672 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6673 */ 6674 static int 6675 manual_mount(int argc, char **argv) 6676 { 6677 zfs_handle_t *zhp; 6678 char mountpoint[ZFS_MAXPROPLEN]; 6679 char mntopts[MNT_LINE_MAX] = { '\0' }; 6680 int ret = 0; 6681 int c; 6682 int flags = 0; 6683 char *dataset, *path; 6684 6685 /* check options */ 6686 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6687 switch (c) { 6688 case 'o': 6689 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6690 break; 6691 case 'O': 6692 flags |= MS_OVERLAY; 6693 break; 6694 case 'm': 6695 flags |= MS_NOMNTTAB; 6696 break; 6697 case ':': 6698 (void) fprintf(stderr, gettext("missing argument for " 6699 "'%c' option\n"), optopt); 6700 usage(B_FALSE); 6701 break; 6702 case '?': 6703 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6704 optopt); 6705 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6706 "<path>\n")); 6707 return (2); 6708 } 6709 } 6710 6711 argc -= optind; 6712 argv += optind; 6713 6714 /* check that we only have two arguments */ 6715 if (argc != 2) { 6716 if (argc == 0) 6717 (void) fprintf(stderr, gettext("missing dataset " 6718 "argument\n")); 6719 else if (argc == 1) 6720 (void) fprintf(stderr, 6721 gettext("missing mountpoint argument\n")); 6722 else 6723 (void) fprintf(stderr, gettext("too many arguments\n")); 6724 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6725 return (2); 6726 } 6727 6728 dataset = argv[0]; 6729 path = argv[1]; 6730 6731 /* try to open the dataset */ 6732 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6733 return (1); 6734 6735 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6736 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6737 6738 /* check for legacy mountpoint and complain appropriately */ 6739 ret = 0; 6740 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6741 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6742 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6743 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6744 strerror(errno)); 6745 ret = 1; 6746 } 6747 } else { 6748 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6749 "mounted using 'mount -F zfs'\n"), dataset); 6750 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6751 "instead.\n"), path); 6752 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6753 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6754 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6755 "information.\n")); 6756 ret = 1; 6757 } 6758 6759 return (ret); 6760 } 6761 6762 /* 6763 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6764 * unmounts of non-legacy filesystems, as this is the dominant administrative 6765 * interface. 6766 */ 6767 static int 6768 manual_unmount(int argc, char **argv) 6769 { 6770 int flags = 0; 6771 int c; 6772 6773 /* check options */ 6774 while ((c = getopt(argc, argv, "f")) != -1) { 6775 switch (c) { 6776 case 'f': 6777 flags = MS_FORCE; 6778 break; 6779 case '?': 6780 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6781 optopt); 6782 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6783 "<path>\n")); 6784 return (2); 6785 } 6786 } 6787 6788 argc -= optind; 6789 argv += optind; 6790 6791 /* check arguments */ 6792 if (argc != 1) { 6793 if (argc == 0) 6794 (void) fprintf(stderr, gettext("missing path " 6795 "argument\n")); 6796 else 6797 (void) fprintf(stderr, gettext("too many arguments\n")); 6798 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6799 return (2); 6800 } 6801 6802 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6803 } 6804 6805 static int 6806 find_command_idx(char *command, int *idx) 6807 { 6808 int i; 6809 6810 for (i = 0; i < NCOMMAND; i++) { 6811 if (command_table[i].name == NULL) 6812 continue; 6813 6814 if (strcmp(command, command_table[i].name) == 0) { 6815 *idx = i; 6816 return (0); 6817 } 6818 } 6819 return (1); 6820 } 6821 6822 static int 6823 zfs_do_diff(int argc, char **argv) 6824 { 6825 zfs_handle_t *zhp; 6826 int flags = 0; 6827 char *tosnap = NULL; 6828 char *fromsnap = NULL; 6829 char *atp, *copy; 6830 int err = 0; 6831 int c; 6832 6833 while ((c = getopt(argc, argv, "FHt")) != -1) { 6834 switch (c) { 6835 case 'F': 6836 flags |= ZFS_DIFF_CLASSIFY; 6837 break; 6838 case 'H': 6839 flags |= ZFS_DIFF_PARSEABLE; 6840 break; 6841 case 't': 6842 flags |= ZFS_DIFF_TIMESTAMP; 6843 break; 6844 default: 6845 (void) fprintf(stderr, 6846 gettext("invalid option '%c'\n"), optopt); 6847 usage(B_FALSE); 6848 } 6849 } 6850 6851 argc -= optind; 6852 argv += optind; 6853 6854 if (argc < 1) { 6855 (void) fprintf(stderr, 6856 gettext("must provide at least one snapshot name\n")); 6857 usage(B_FALSE); 6858 } 6859 6860 if (argc > 2) { 6861 (void) fprintf(stderr, gettext("too many arguments\n")); 6862 usage(B_FALSE); 6863 } 6864 6865 fromsnap = argv[0]; 6866 tosnap = (argc == 2) ? argv[1] : NULL; 6867 6868 copy = NULL; 6869 if (*fromsnap != '@') 6870 copy = strdup(fromsnap); 6871 else if (tosnap) 6872 copy = strdup(tosnap); 6873 if (copy == NULL) 6874 usage(B_FALSE); 6875 6876 if ((atp = strchr(copy, '@')) != NULL) 6877 *atp = '\0'; 6878 6879 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6880 return (1); 6881 6882 free(copy); 6883 6884 /* 6885 * Ignore SIGPIPE so that the library can give us 6886 * information on any failure 6887 */ 6888 (void) sigignore(SIGPIPE); 6889 6890 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6891 6892 zfs_close(zhp); 6893 6894 return (err != 0); 6895 } 6896 6897 /* 6898 * zfs bookmark <fs@snap> <fs#bmark> 6899 * 6900 * Creates a bookmark with the given name from the given snapshot. 6901 */ 6902 static int 6903 zfs_do_bookmark(int argc, char **argv) 6904 { 6905 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 6906 zfs_handle_t *zhp; 6907 nvlist_t *nvl; 6908 int ret = 0; 6909 int c; 6910 6911 /* check options */ 6912 while ((c = getopt(argc, argv, "")) != -1) { 6913 switch (c) { 6914 case '?': 6915 (void) fprintf(stderr, 6916 gettext("invalid option '%c'\n"), optopt); 6917 goto usage; 6918 } 6919 } 6920 6921 argc -= optind; 6922 argv += optind; 6923 6924 /* check number of arguments */ 6925 if (argc < 1) { 6926 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6927 goto usage; 6928 } 6929 if (argc < 2) { 6930 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6931 goto usage; 6932 } 6933 6934 if (strchr(argv[1], '#') == NULL) { 6935 (void) fprintf(stderr, 6936 gettext("invalid bookmark name '%s' -- " 6937 "must contain a '#'\n"), argv[1]); 6938 goto usage; 6939 } 6940 6941 if (argv[0][0] == '@') { 6942 /* 6943 * Snapshot name begins with @. 6944 * Default to same fs as bookmark. 6945 */ 6946 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6947 *strchr(snapname, '#') = '\0'; 6948 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6949 } else { 6950 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6951 } 6952 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6953 if (zhp == NULL) 6954 goto usage; 6955 zfs_close(zhp); 6956 6957 6958 nvl = fnvlist_alloc(); 6959 fnvlist_add_string(nvl, argv[1], snapname); 6960 ret = lzc_bookmark(nvl, NULL); 6961 fnvlist_free(nvl); 6962 6963 if (ret != 0) { 6964 const char *err_msg; 6965 char errbuf[1024]; 6966 6967 (void) snprintf(errbuf, sizeof (errbuf), 6968 dgettext(TEXT_DOMAIN, 6969 "cannot create bookmark '%s'"), argv[1]); 6970 6971 switch (ret) { 6972 case EXDEV: 6973 err_msg = "bookmark is in a different pool"; 6974 break; 6975 case EEXIST: 6976 err_msg = "bookmark exists"; 6977 break; 6978 case EINVAL: 6979 err_msg = "invalid argument"; 6980 break; 6981 case ENOTSUP: 6982 err_msg = "bookmark feature not enabled"; 6983 break; 6984 case ENOSPC: 6985 err_msg = "out of space"; 6986 break; 6987 default: 6988 err_msg = "unknown error"; 6989 break; 6990 } 6991 (void) fprintf(stderr, "%s: %s\n", errbuf, 6992 dgettext(TEXT_DOMAIN, err_msg)); 6993 } 6994 6995 return (ret != 0); 6996 6997 usage: 6998 usage(B_FALSE); 6999 return (-1); 7000 } 7001 7002 static int 7003 zfs_do_channel_program(int argc, char **argv) 7004 { 7005 int ret, fd; 7006 char c; 7007 char *progbuf, *filename, *poolname; 7008 size_t progsize, progread; 7009 nvlist_t *outnvl; 7010 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7011 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7012 zpool_handle_t *zhp; 7013 7014 /* check options */ 7015 while (-1 != 7016 (c = getopt(argc, argv, "t:(instr-limit)m:(memory-limit)"))) { 7017 switch (c) { 7018 case 't': 7019 case 'm': { 7020 uint64_t arg; 7021 char *endp; 7022 7023 errno = 0; 7024 arg = strtoull(optarg, &endp, 0); 7025 if (errno != 0 || *endp != '\0') { 7026 (void) fprintf(stderr, gettext( 7027 "invalid argument " 7028 "'%s': expected integer\n"), optarg); 7029 goto usage; 7030 } 7031 7032 if (c == 't') { 7033 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) { 7034 (void) fprintf(stderr, gettext( 7035 "Invalid instruction limit: " 7036 "%s\n"), optarg); 7037 return (1); 7038 } else { 7039 instrlimit = arg; 7040 } 7041 } else { 7042 ASSERT3U(c, ==, 'm'); 7043 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) { 7044 (void) fprintf(stderr, gettext( 7045 "Invalid memory limit: " 7046 "%s\n"), optarg); 7047 return (1); 7048 } else { 7049 memlimit = arg; 7050 } 7051 } 7052 break; 7053 } 7054 case '?': 7055 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7056 optopt); 7057 goto usage; 7058 } 7059 } 7060 7061 argc -= optind; 7062 argv += optind; 7063 7064 if (argc < 2) { 7065 (void) fprintf(stderr, 7066 gettext("invalid number of arguments\n")); 7067 goto usage; 7068 } 7069 7070 poolname = argv[0]; 7071 filename = argv[1]; 7072 if (strcmp(filename, "-") == 0) { 7073 fd = 0; 7074 filename = "standard input"; 7075 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7076 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7077 filename, strerror(errno)); 7078 return (1); 7079 } 7080 7081 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7082 (void) fprintf(stderr, gettext("cannot open pool '%s'"), 7083 poolname); 7084 return (1); 7085 } 7086 zpool_close(zhp); 7087 7088 /* 7089 * Read in the channel program, expanding the program buffer as 7090 * necessary. 7091 */ 7092 progread = 0; 7093 progsize = 1024; 7094 progbuf = safe_malloc(progsize); 7095 do { 7096 ret = read(fd, progbuf + progread, progsize - progread); 7097 progread += ret; 7098 if (progread == progsize && ret > 0) { 7099 progsize *= 2; 7100 progbuf = safe_realloc(progbuf, progsize); 7101 } 7102 } while (ret > 0); 7103 7104 if (fd != 0) 7105 (void) close(fd); 7106 if (ret < 0) { 7107 free(progbuf); 7108 (void) fprintf(stderr, 7109 gettext("cannot read '%s': %s\n"), 7110 filename, strerror(errno)); 7111 return (1); 7112 } 7113 progbuf[progread] = '\0'; 7114 7115 /* 7116 * Any remaining arguments are passed as arguments to the lua script as 7117 * a string array: 7118 * { 7119 * "argv" -> [ "arg 1", ... "arg n" ], 7120 * } 7121 */ 7122 nvlist_t *argnvl = fnvlist_alloc(); 7123 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 7124 7125 ret = lzc_channel_program(poolname, progbuf, instrlimit, memlimit, 7126 argnvl, &outnvl); 7127 7128 if (ret != 0) { 7129 /* 7130 * On error, report the error message handed back by lua if one 7131 * exists. Otherwise, generate an appropriate error message, 7132 * falling back on strerror() for an unexpected return code. 7133 */ 7134 char *errstring = NULL; 7135 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) { 7136 (void) nvlist_lookup_string(outnvl, 7137 ZCP_RET_ERROR, &errstring); 7138 if (errstring == NULL) 7139 errstring = strerror(ret); 7140 } else { 7141 switch (ret) { 7142 case EINVAL: 7143 errstring = 7144 "Invalid instruction or memory limit."; 7145 break; 7146 case ENOMEM: 7147 errstring = "Return value too large."; 7148 break; 7149 case ENOSPC: 7150 errstring = "Memory limit exhausted."; 7151 break; 7152 case ETIME: 7153 errstring = "Timed out."; 7154 break; 7155 case EPERM: 7156 errstring = "Permission denied. Channel " 7157 "programs must be run as root."; 7158 break; 7159 default: 7160 errstring = strerror(ret); 7161 } 7162 } 7163 (void) fprintf(stderr, 7164 gettext("Channel program execution failed:\n%s\n"), 7165 errstring); 7166 } else { 7167 (void) printf("Channel program fully executed "); 7168 if (nvlist_empty(outnvl)) { 7169 (void) printf("with no return value.\n"); 7170 } else { 7171 (void) printf("with return value:\n"); 7172 dump_nvlist(outnvl, 4); 7173 } 7174 } 7175 7176 free(progbuf); 7177 fnvlist_free(outnvl); 7178 fnvlist_free(argnvl); 7179 return (ret != 0); 7180 7181 usage: 7182 usage(B_FALSE); 7183 return (-1); 7184 } 7185 7186 int 7187 main(int argc, char **argv) 7188 { 7189 int ret = 0; 7190 int i; 7191 char *progname; 7192 char *cmdname; 7193 7194 (void) setlocale(LC_ALL, ""); 7195 (void) textdomain(TEXT_DOMAIN); 7196 7197 opterr = 0; 7198 7199 if ((g_zfs = libzfs_init()) == NULL) { 7200 (void) fprintf(stderr, gettext("internal error: failed to " 7201 "initialize ZFS library\n")); 7202 return (1); 7203 } 7204 7205 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7206 7207 libzfs_print_on_error(g_zfs, B_TRUE); 7208 7209 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7210 (void) fprintf(stderr, gettext("internal error: unable to " 7211 "open %s\n"), MNTTAB); 7212 return (1); 7213 } 7214 7215 /* 7216 * This command also doubles as the /etc/fs mount and unmount program. 7217 * Determine if we should take this behavior based on argv[0]. 7218 */ 7219 progname = basename(argv[0]); 7220 if (strcmp(progname, "mount") == 0) { 7221 ret = manual_mount(argc, argv); 7222 } else if (strcmp(progname, "umount") == 0) { 7223 ret = manual_unmount(argc, argv); 7224 } else { 7225 /* 7226 * Make sure the user has specified some command. 7227 */ 7228 if (argc < 2) { 7229 (void) fprintf(stderr, gettext("missing command\n")); 7230 usage(B_FALSE); 7231 } 7232 7233 cmdname = argv[1]; 7234 7235 /* 7236 * The 'umount' command is an alias for 'unmount' 7237 */ 7238 if (strcmp(cmdname, "umount") == 0) 7239 cmdname = "unmount"; 7240 7241 /* 7242 * The 'recv' command is an alias for 'receive' 7243 */ 7244 if (strcmp(cmdname, "recv") == 0) 7245 cmdname = "receive"; 7246 7247 /* 7248 * The 'snap' command is an alias for 'snapshot' 7249 */ 7250 if (strcmp(cmdname, "snap") == 0) 7251 cmdname = "snapshot"; 7252 7253 /* 7254 * Special case '-?' 7255 */ 7256 if (strcmp(cmdname, "-?") == 0) 7257 usage(B_TRUE); 7258 7259 /* 7260 * Run the appropriate command. 7261 */ 7262 libzfs_mnttab_cache(g_zfs, B_TRUE); 7263 if (find_command_idx(cmdname, &i) == 0) { 7264 current_command = &command_table[i]; 7265 ret = command_table[i].func(argc - 1, argv + 1); 7266 } else if (strchr(cmdname, '=') != NULL) { 7267 verify(find_command_idx("set", &i) == 0); 7268 current_command = &command_table[i]; 7269 ret = command_table[i].func(argc, argv); 7270 } else { 7271 (void) fprintf(stderr, gettext("unrecognized " 7272 "command '%s'\n"), cmdname); 7273 usage(B_FALSE); 7274 } 7275 libzfs_mnttab_cache(g_zfs, B_FALSE); 7276 } 7277 7278 (void) fclose(mnttab_file); 7279 7280 if (ret == 0 && log_history) 7281 (void) zpool_log_history(g_zfs, history_str); 7282 7283 libzfs_fini(g_zfs); 7284 7285 /* 7286 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7287 * for the purposes of running ::findleaks. 7288 */ 7289 if (getenv("ZFS_ABORT") != NULL) { 7290 (void) printf("dumping core by request\n"); 7291 abort(); 7292 } 7293 7294 return (ret); 7295 } 7296