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_remap(int argc, char **argv); 111 static int zfs_do_channel_program(int argc, char **argv); 112 113 /* 114 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 115 */ 116 117 #ifdef DEBUG 118 const char * 119 _umem_debug_init(void) 120 { 121 return ("default,verbose"); /* $UMEM_DEBUG setting */ 122 } 123 124 const char * 125 _umem_logging_init(void) 126 { 127 return ("fail,contents"); /* $UMEM_LOGGING setting */ 128 } 129 #endif 130 131 typedef enum { 132 HELP_CLONE, 133 HELP_CREATE, 134 HELP_DESTROY, 135 HELP_GET, 136 HELP_INHERIT, 137 HELP_UPGRADE, 138 HELP_LIST, 139 HELP_MOUNT, 140 HELP_PROMOTE, 141 HELP_RECEIVE, 142 HELP_RENAME, 143 HELP_ROLLBACK, 144 HELP_SEND, 145 HELP_SET, 146 HELP_SHARE, 147 HELP_SNAPSHOT, 148 HELP_UNMOUNT, 149 HELP_UNSHARE, 150 HELP_ALLOW, 151 HELP_UNALLOW, 152 HELP_USERSPACE, 153 HELP_GROUPSPACE, 154 HELP_HOLD, 155 HELP_HOLDS, 156 HELP_RELEASE, 157 HELP_DIFF, 158 HELP_REMAP, 159 HELP_BOOKMARK, 160 HELP_CHANNEL_PROGRAM, 161 } zfs_help_t; 162 163 typedef struct zfs_command { 164 const char *name; 165 int (*func)(int argc, char **argv); 166 zfs_help_t usage; 167 } zfs_command_t; 168 169 /* 170 * Master command table. Each ZFS command has a name, associated function, and 171 * usage message. The usage messages need to be internationalized, so we have 172 * to have a function to return the usage message based on a command index. 173 * 174 * These commands are organized according to how they are displayed in the usage 175 * message. An empty command (one with a NULL name) indicates an empty line in 176 * the generic usage message. 177 */ 178 static zfs_command_t command_table[] = { 179 { "create", zfs_do_create, HELP_CREATE }, 180 { "destroy", zfs_do_destroy, HELP_DESTROY }, 181 { NULL }, 182 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 183 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 184 { "clone", zfs_do_clone, HELP_CLONE }, 185 { "promote", zfs_do_promote, HELP_PROMOTE }, 186 { "rename", zfs_do_rename, HELP_RENAME }, 187 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 188 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 189 { NULL }, 190 { "list", zfs_do_list, HELP_LIST }, 191 { NULL }, 192 { "set", zfs_do_set, HELP_SET }, 193 { "get", zfs_do_get, HELP_GET }, 194 { "inherit", zfs_do_inherit, HELP_INHERIT }, 195 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 196 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 197 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 198 { NULL }, 199 { "mount", zfs_do_mount, HELP_MOUNT }, 200 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 201 { "share", zfs_do_share, HELP_SHARE }, 202 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 203 { NULL }, 204 { "send", zfs_do_send, HELP_SEND }, 205 { "receive", zfs_do_receive, HELP_RECEIVE }, 206 { NULL }, 207 { "allow", zfs_do_allow, HELP_ALLOW }, 208 { NULL }, 209 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 210 { NULL }, 211 { "hold", zfs_do_hold, HELP_HOLD }, 212 { "holds", zfs_do_holds, HELP_HOLDS }, 213 { "release", zfs_do_release, HELP_RELEASE }, 214 { "diff", zfs_do_diff, HELP_DIFF }, 215 { "remap", zfs_do_remap, HELP_REMAP }, 216 }; 217 218 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 219 220 zfs_command_t *current_command; 221 222 static const char * 223 get_usage(zfs_help_t idx) 224 { 225 switch (idx) { 226 case HELP_CLONE: 227 return (gettext("\tclone [-p] [-o property=value] ... " 228 "<snapshot> <filesystem|volume>\n")); 229 case HELP_CREATE: 230 return (gettext("\tcreate [-p] [-o property=value] ... " 231 "<filesystem>\n" 232 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 233 "-V <size> <volume>\n")); 234 case HELP_DESTROY: 235 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 236 "\tdestroy [-dnpRrv] " 237 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 238 "\tdestroy <filesystem|volume>#<bookmark>\n")); 239 case HELP_GET: 240 return (gettext("\tget [-rHp] [-d max] " 241 "[-o \"all\" | field[,...]]\n" 242 "\t [-t type[,...]] [-s source[,...]]\n" 243 "\t <\"all\" | property[,...]> " 244 "[filesystem|volume|snapshot|bookmark] ...\n")); 245 case HELP_INHERIT: 246 return (gettext("\tinherit [-rS] <property> " 247 "<filesystem|volume|snapshot> ...\n")); 248 case HELP_UPGRADE: 249 return (gettext("\tupgrade [-v]\n" 250 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 251 case HELP_LIST: 252 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 253 "[-s property]...\n\t [-S property]... [-t type[,...]] " 254 "[filesystem|volume|snapshot] ...\n")); 255 case HELP_MOUNT: 256 return (gettext("\tmount\n" 257 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 258 case HELP_PROMOTE: 259 return (gettext("\tpromote <clone-filesystem>\n")); 260 case HELP_RECEIVE: 261 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 262 "snapshot>\n" 263 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 264 "<filesystem>\n" 265 "\treceive -A <filesystem|volume>\n")); 266 case HELP_RENAME: 267 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 268 "<filesystem|volume|snapshot>\n" 269 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 270 "\trename -r <snapshot> <snapshot>\n")); 271 case HELP_ROLLBACK: 272 return (gettext("\trollback [-rRf] <snapshot>\n")); 273 case HELP_SEND: 274 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] " 275 "<snapshot>\n" 276 "\tsend [-Le] [-i snapshot|bookmark] " 277 "<filesystem|volume|snapshot>\n" 278 "\tsend [-nvPe] -t <receive_resume_token>\n")); 279 case HELP_SET: 280 return (gettext("\tset <property=value> ... " 281 "<filesystem|volume|snapshot> ...\n")); 282 case HELP_SHARE: 283 return (gettext("\tshare <-a | filesystem>\n")); 284 case HELP_SNAPSHOT: 285 return (gettext("\tsnapshot [-r] [-o property=value] ... " 286 "<filesystem|volume>@<snap> ...\n")); 287 case HELP_UNMOUNT: 288 return (gettext("\tunmount [-f] " 289 "<-a | filesystem|mountpoint>\n")); 290 case HELP_UNSHARE: 291 return (gettext("\tunshare " 292 "<-a | filesystem|mountpoint>\n")); 293 case HELP_ALLOW: 294 return (gettext("\tallow <filesystem|volume>\n" 295 "\tallow [-ldug] " 296 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 297 "\t <filesystem|volume>\n" 298 "\tallow [-ld] -e <perm|@setname>[,...] " 299 "<filesystem|volume>\n" 300 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 301 "\tallow -s @setname <perm|@setname>[,...] " 302 "<filesystem|volume>\n")); 303 case HELP_UNALLOW: 304 return (gettext("\tunallow [-rldug] " 305 "<\"everyone\"|user|group>[,...]\n" 306 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 307 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 308 "<filesystem|volume>\n" 309 "\tunallow [-r] -c [<perm|@setname>[,...]] " 310 "<filesystem|volume>\n" 311 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n")); 313 case HELP_USERSPACE: 314 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 315 "[-s field] ...\n" 316 "\t [-S field] ... [-t type[,...]] " 317 "<filesystem|snapshot>\n")); 318 case HELP_GROUPSPACE: 319 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 320 "[-s field] ...\n" 321 "\t [-S field] ... [-t type[,...]] " 322 "<filesystem|snapshot>\n")); 323 case HELP_HOLD: 324 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 325 case HELP_HOLDS: 326 return (gettext("\tholds [-r] <snapshot> ...\n")); 327 case HELP_RELEASE: 328 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 329 case HELP_DIFF: 330 return (gettext("\tdiff [-FHt] <snapshot> " 331 "[snapshot|filesystem]\n")); 332 case HELP_REMAP: 333 return (gettext("\tremap <filesystem | volume>\n")); 334 case HELP_BOOKMARK: 335 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 336 case HELP_CHANNEL_PROGRAM: 337 return (gettext("\tprogram [-n] [-t <instruction limit>] " 338 "[-m <memory limit (b)>] <pool> <program file> " 339 "[lua args...]\n")); 340 } 341 342 abort(); 343 /* NOTREACHED */ 344 } 345 346 void 347 nomem(void) 348 { 349 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 350 exit(1); 351 } 352 353 /* 354 * Utility function to guarantee malloc() success. 355 */ 356 357 void * 358 safe_malloc(size_t size) 359 { 360 void *data; 361 362 if ((data = calloc(1, size)) == NULL) 363 nomem(); 364 365 return (data); 366 } 367 368 void * 369 safe_realloc(void *data, size_t size) 370 { 371 void *newp; 372 if ((newp = realloc(data, size)) == NULL) { 373 free(data); 374 nomem(); 375 } 376 377 return (newp); 378 } 379 380 static char * 381 safe_strdup(char *str) 382 { 383 char *dupstr = strdup(str); 384 385 if (dupstr == NULL) 386 nomem(); 387 388 return (dupstr); 389 } 390 391 /* 392 * Callback routine that will print out information for each of 393 * the properties. 394 */ 395 static int 396 usage_prop_cb(int prop, void *cb) 397 { 398 FILE *fp = cb; 399 400 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 401 402 if (zfs_prop_readonly(prop)) 403 (void) fprintf(fp, " NO "); 404 else 405 (void) fprintf(fp, "YES "); 406 407 if (zfs_prop_inheritable(prop)) 408 (void) fprintf(fp, " YES "); 409 else 410 (void) fprintf(fp, " NO "); 411 412 if (zfs_prop_values(prop) == NULL) 413 (void) fprintf(fp, "-\n"); 414 else 415 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 416 417 return (ZPROP_CONT); 418 } 419 420 /* 421 * Display usage message. If we're inside a command, display only the usage for 422 * that command. Otherwise, iterate over the entire command table and display 423 * a complete usage message. 424 */ 425 static void 426 usage(boolean_t requested) 427 { 428 int i; 429 boolean_t show_properties = B_FALSE; 430 FILE *fp = requested ? stdout : stderr; 431 432 if (current_command == NULL) { 433 434 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 435 (void) fprintf(fp, 436 gettext("where 'command' is one of the following:\n\n")); 437 438 for (i = 0; i < NCOMMAND; i++) { 439 if (command_table[i].name == NULL) 440 (void) fprintf(fp, "\n"); 441 else 442 (void) fprintf(fp, "%s", 443 get_usage(command_table[i].usage)); 444 } 445 446 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 447 "pool/[dataset/]*dataset[@name]\n")); 448 } else { 449 (void) fprintf(fp, gettext("usage:\n")); 450 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 451 } 452 453 if (current_command != NULL && 454 (strcmp(current_command->name, "set") == 0 || 455 strcmp(current_command->name, "get") == 0 || 456 strcmp(current_command->name, "inherit") == 0 || 457 strcmp(current_command->name, "list") == 0)) 458 show_properties = B_TRUE; 459 460 if (show_properties) { 461 (void) fprintf(fp, 462 gettext("\nThe following properties are supported:\n")); 463 464 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 465 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 466 467 /* Iterate over all properties */ 468 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 469 ZFS_TYPE_DATASET); 470 471 (void) fprintf(fp, "\t%-15s ", "userused@..."); 472 (void) fprintf(fp, " NO NO <size>\n"); 473 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 474 (void) fprintf(fp, " NO NO <size>\n"); 475 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 476 (void) fprintf(fp, "YES NO <size> | none\n"); 477 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 478 (void) fprintf(fp, "YES NO <size> | none\n"); 479 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 480 (void) fprintf(fp, " NO NO <size>\n"); 481 482 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 483 "with standard units such as K, M, G, etc.\n")); 484 (void) fprintf(fp, gettext("\nUser-defined properties can " 485 "be specified by using a name containing a colon (:).\n")); 486 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 487 "properties must be appended with\n" 488 "a user or group specifier of one of these forms:\n" 489 " POSIX name (eg: \"matt\")\n" 490 " POSIX id (eg: \"126829\")\n" 491 " SMB name@domain (eg: \"matt@sun\")\n" 492 " SMB SID (eg: \"S-1-234-567-89\")\n")); 493 } else { 494 (void) fprintf(fp, 495 gettext("\nFor the property list, run: %s\n"), 496 "zfs set|get"); 497 (void) fprintf(fp, 498 gettext("\nFor the delegated permission list, run: %s\n"), 499 "zfs allow|unallow"); 500 } 501 502 /* 503 * See comments at end of main(). 504 */ 505 if (getenv("ZFS_ABORT") != NULL) { 506 (void) printf("dumping core by request\n"); 507 abort(); 508 } 509 510 exit(requested ? 0 : 2); 511 } 512 513 /* 514 * Take a property=value argument string and add it to the given nvlist. 515 * Modifies the argument inplace. 516 */ 517 static int 518 parseprop(nvlist_t *props, char *propname) 519 { 520 char *propval, *strval; 521 522 if ((propval = strchr(propname, '=')) == NULL) { 523 (void) fprintf(stderr, gettext("missing " 524 "'=' for property=value argument\n")); 525 return (-1); 526 } 527 *propval = '\0'; 528 propval++; 529 if (nvlist_lookup_string(props, propname, &strval) == 0) { 530 (void) fprintf(stderr, gettext("property '%s' " 531 "specified multiple times\n"), propname); 532 return (-1); 533 } 534 if (nvlist_add_string(props, propname, propval) != 0) 535 nomem(); 536 return (0); 537 } 538 539 static int 540 parse_depth(char *opt, int *flags) 541 { 542 char *tmp; 543 int depth; 544 545 depth = (int)strtol(opt, &tmp, 0); 546 if (*tmp) { 547 (void) fprintf(stderr, 548 gettext("%s is not an integer\n"), optarg); 549 usage(B_FALSE); 550 } 551 if (depth < 0) { 552 (void) fprintf(stderr, 553 gettext("Depth can not be negative.\n")); 554 usage(B_FALSE); 555 } 556 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 557 return (depth); 558 } 559 560 #define PROGRESS_DELAY 2 /* seconds */ 561 562 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"; 563 static time_t pt_begin; 564 static char *pt_header = NULL; 565 static boolean_t pt_shown; 566 567 static void 568 start_progress_timer(void) 569 { 570 pt_begin = time(NULL) + PROGRESS_DELAY; 571 pt_shown = B_FALSE; 572 } 573 574 static void 575 set_progress_header(char *header) 576 { 577 assert(pt_header == NULL); 578 pt_header = safe_strdup(header); 579 if (pt_shown) { 580 (void) printf("%s: ", header); 581 (void) fflush(stdout); 582 } 583 } 584 585 static void 586 update_progress(char *update) 587 { 588 if (!pt_shown && time(NULL) > pt_begin) { 589 int len = strlen(update); 590 591 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 592 pt_reverse); 593 (void) fflush(stdout); 594 pt_shown = B_TRUE; 595 } else if (pt_shown) { 596 int len = strlen(update); 597 598 (void) printf("%s%*.*s", update, len, len, pt_reverse); 599 (void) fflush(stdout); 600 } 601 } 602 603 static void 604 finish_progress(char *done) 605 { 606 if (pt_shown) { 607 (void) printf("%s\n", done); 608 (void) fflush(stdout); 609 } 610 free(pt_header); 611 pt_header = NULL; 612 } 613 614 /* 615 * Check if the dataset is mountable and should be automatically mounted. 616 */ 617 static boolean_t 618 should_auto_mount(zfs_handle_t *zhp) 619 { 620 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 621 return (B_FALSE); 622 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 623 } 624 625 /* 626 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 627 * 628 * Given an existing dataset, create a writable copy whose initial contents 629 * are the same as the source. The newly created dataset maintains a 630 * dependency on the original; the original cannot be destroyed so long as 631 * the clone exists. 632 * 633 * The '-p' flag creates all the non-existing ancestors of the target first. 634 */ 635 static int 636 zfs_do_clone(int argc, char **argv) 637 { 638 zfs_handle_t *zhp = NULL; 639 boolean_t parents = B_FALSE; 640 nvlist_t *props; 641 int ret = 0; 642 int c; 643 644 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 645 nomem(); 646 647 /* check options */ 648 while ((c = getopt(argc, argv, "o:p")) != -1) { 649 switch (c) { 650 case 'o': 651 if (parseprop(props, optarg) != 0) 652 return (1); 653 break; 654 case 'p': 655 parents = B_TRUE; 656 break; 657 case '?': 658 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 659 optopt); 660 goto usage; 661 } 662 } 663 664 argc -= optind; 665 argv += optind; 666 667 /* check number of arguments */ 668 if (argc < 1) { 669 (void) fprintf(stderr, gettext("missing source dataset " 670 "argument\n")); 671 goto usage; 672 } 673 if (argc < 2) { 674 (void) fprintf(stderr, gettext("missing target dataset " 675 "argument\n")); 676 goto usage; 677 } 678 if (argc > 2) { 679 (void) fprintf(stderr, gettext("too many arguments\n")); 680 goto usage; 681 } 682 683 /* open the source dataset */ 684 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 685 return (1); 686 687 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 688 ZFS_TYPE_VOLUME)) { 689 /* 690 * Now create the ancestors of the target dataset. If the 691 * target already exists and '-p' option was used we should not 692 * complain. 693 */ 694 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 695 ZFS_TYPE_VOLUME)) 696 return (0); 697 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 698 return (1); 699 } 700 701 /* pass to libzfs */ 702 ret = zfs_clone(zhp, argv[1], props); 703 704 /* create the mountpoint if necessary */ 705 if (ret == 0) { 706 zfs_handle_t *clone; 707 708 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 709 if (clone != NULL) { 710 /* 711 * If the user doesn't want the dataset 712 * automatically mounted, then skip the mount/share 713 * step. 714 */ 715 if (should_auto_mount(clone)) { 716 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 717 (void) fprintf(stderr, gettext("clone " 718 "successfully created, " 719 "but not mounted\n")); 720 } else if ((ret = zfs_share(clone)) != 0) { 721 (void) fprintf(stderr, gettext("clone " 722 "successfully created, " 723 "but not shared\n")); 724 } 725 } 726 zfs_close(clone); 727 } 728 } 729 730 zfs_close(zhp); 731 nvlist_free(props); 732 733 return (!!ret); 734 735 usage: 736 if (zhp) 737 zfs_close(zhp); 738 nvlist_free(props); 739 usage(B_FALSE); 740 return (-1); 741 } 742 743 /* 744 * zfs create [-p] [-o prop=value] ... fs 745 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 746 * 747 * Create a new dataset. This command can be used to create filesystems 748 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 749 * For volumes, the user must specify a size to be used. 750 * 751 * The '-s' flag applies only to volumes, and indicates that we should not try 752 * to set the reservation for this volume. By default we set a reservation 753 * equal to the size for any volume. For pools with SPA_VERSION >= 754 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 755 * 756 * The '-p' flag creates all the non-existing ancestors of the target first. 757 */ 758 static int 759 zfs_do_create(int argc, char **argv) 760 { 761 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 762 zfs_handle_t *zhp = NULL; 763 uint64_t volsize = 0; 764 int c; 765 boolean_t noreserve = B_FALSE; 766 boolean_t bflag = B_FALSE; 767 boolean_t parents = B_FALSE; 768 int ret = 1; 769 nvlist_t *props; 770 uint64_t intval; 771 772 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 773 nomem(); 774 775 /* check options */ 776 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 777 switch (c) { 778 case 'V': 779 type = ZFS_TYPE_VOLUME; 780 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 781 (void) fprintf(stderr, gettext("bad volume " 782 "size '%s': %s\n"), optarg, 783 libzfs_error_description(g_zfs)); 784 goto error; 785 } 786 787 if (nvlist_add_uint64(props, 788 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 789 nomem(); 790 volsize = intval; 791 break; 792 case 'p': 793 parents = B_TRUE; 794 break; 795 case 'b': 796 bflag = B_TRUE; 797 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 798 (void) fprintf(stderr, gettext("bad volume " 799 "block size '%s': %s\n"), optarg, 800 libzfs_error_description(g_zfs)); 801 goto error; 802 } 803 804 if (nvlist_add_uint64(props, 805 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 806 intval) != 0) 807 nomem(); 808 break; 809 case 'o': 810 if (parseprop(props, optarg) != 0) 811 goto error; 812 break; 813 case 's': 814 noreserve = B_TRUE; 815 break; 816 case ':': 817 (void) fprintf(stderr, gettext("missing size " 818 "argument\n")); 819 goto badusage; 820 case '?': 821 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 822 optopt); 823 goto badusage; 824 } 825 } 826 827 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 828 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 829 "used when creating a volume\n")); 830 goto badusage; 831 } 832 833 argc -= optind; 834 argv += optind; 835 836 /* check number of arguments */ 837 if (argc == 0) { 838 (void) fprintf(stderr, gettext("missing %s argument\n"), 839 zfs_type_to_name(type)); 840 goto badusage; 841 } 842 if (argc > 1) { 843 (void) fprintf(stderr, gettext("too many arguments\n")); 844 goto badusage; 845 } 846 847 if (type == ZFS_TYPE_VOLUME && !noreserve) { 848 zpool_handle_t *zpool_handle; 849 nvlist_t *real_props = NULL; 850 uint64_t spa_version; 851 char *p; 852 zfs_prop_t resv_prop; 853 char *strval; 854 char msg[1024]; 855 856 if ((p = strchr(argv[0], '/')) != NULL) 857 *p = '\0'; 858 zpool_handle = zpool_open(g_zfs, argv[0]); 859 if (p != NULL) 860 *p = '/'; 861 if (zpool_handle == NULL) 862 goto error; 863 spa_version = zpool_get_prop_int(zpool_handle, 864 ZPOOL_PROP_VERSION, NULL); 865 if (spa_version >= SPA_VERSION_REFRESERVATION) 866 resv_prop = ZFS_PROP_REFRESERVATION; 867 else 868 resv_prop = ZFS_PROP_RESERVATION; 869 870 (void) snprintf(msg, sizeof (msg), 871 gettext("cannot create '%s'"), argv[0]); 872 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 873 props, 0, NULL, zpool_handle, msg)) == NULL) { 874 zpool_close(zpool_handle); 875 goto error; 876 } 877 zpool_close(zpool_handle); 878 879 volsize = zvol_volsize_to_reservation(volsize, real_props); 880 nvlist_free(real_props); 881 882 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 883 &strval) != 0) { 884 if (nvlist_add_uint64(props, 885 zfs_prop_to_name(resv_prop), volsize) != 0) { 886 nvlist_free(props); 887 nomem(); 888 } 889 } 890 } 891 892 if (parents && zfs_name_valid(argv[0], type)) { 893 /* 894 * Now create the ancestors of target dataset. If the target 895 * already exists and '-p' option was used we should not 896 * complain. 897 */ 898 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 899 ret = 0; 900 goto error; 901 } 902 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 903 goto error; 904 } 905 906 /* pass to libzfs */ 907 if (zfs_create(g_zfs, argv[0], type, props) != 0) 908 goto error; 909 910 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 911 goto error; 912 913 ret = 0; 914 915 /* 916 * Mount and/or share the new filesystem as appropriate. We provide a 917 * verbose error message to let the user know that their filesystem was 918 * in fact created, even if we failed to mount or share it. 919 * If the user doesn't want the dataset automatically mounted, 920 * then skip the mount/share step altogether. 921 */ 922 if (should_auto_mount(zhp)) { 923 if (zfs_mount(zhp, NULL, 0) != 0) { 924 (void) fprintf(stderr, gettext("filesystem " 925 "successfully created, but not mounted\n")); 926 ret = 1; 927 } else if (zfs_share(zhp) != 0) { 928 (void) fprintf(stderr, gettext("filesystem " 929 "successfully created, but not shared\n")); 930 ret = 1; 931 } 932 } 933 934 error: 935 if (zhp) 936 zfs_close(zhp); 937 nvlist_free(props); 938 return (ret); 939 badusage: 940 nvlist_free(props); 941 usage(B_FALSE); 942 return (2); 943 } 944 945 /* 946 * zfs destroy [-rRf] <fs, vol> 947 * zfs destroy [-rRd] <snap> 948 * 949 * -r Recursively destroy all children 950 * -R Recursively destroy all dependents, including clones 951 * -f Force unmounting of any dependents 952 * -d If we can't destroy now, mark for deferred destruction 953 * 954 * Destroys the given dataset. By default, it will unmount any filesystems, 955 * and refuse to destroy a dataset that has any dependents. A dependent can 956 * either be a child, or a clone of a child. 957 */ 958 typedef struct destroy_cbdata { 959 boolean_t cb_first; 960 boolean_t cb_force; 961 boolean_t cb_recurse; 962 boolean_t cb_error; 963 boolean_t cb_doclones; 964 zfs_handle_t *cb_target; 965 boolean_t cb_defer_destroy; 966 boolean_t cb_verbose; 967 boolean_t cb_parsable; 968 boolean_t cb_dryrun; 969 nvlist_t *cb_nvl; 970 nvlist_t *cb_batchedsnaps; 971 972 /* first snap in contiguous run */ 973 char *cb_firstsnap; 974 /* previous snap in contiguous run */ 975 char *cb_prevsnap; 976 int64_t cb_snapused; 977 char *cb_snapspec; 978 char *cb_bookmark; 979 } destroy_cbdata_t; 980 981 /* 982 * Check for any dependents based on the '-r' or '-R' flags. 983 */ 984 static int 985 destroy_check_dependent(zfs_handle_t *zhp, void *data) 986 { 987 destroy_cbdata_t *cbp = data; 988 const char *tname = zfs_get_name(cbp->cb_target); 989 const char *name = zfs_get_name(zhp); 990 991 if (strncmp(tname, name, strlen(tname)) == 0 && 992 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 993 /* 994 * This is a direct descendant, not a clone somewhere else in 995 * the hierarchy. 996 */ 997 if (cbp->cb_recurse) 998 goto out; 999 1000 if (cbp->cb_first) { 1001 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1002 "%s has children\n"), 1003 zfs_get_name(cbp->cb_target), 1004 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1005 (void) fprintf(stderr, gettext("use '-r' to destroy " 1006 "the following datasets:\n")); 1007 cbp->cb_first = B_FALSE; 1008 cbp->cb_error = B_TRUE; 1009 } 1010 1011 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1012 } else { 1013 /* 1014 * This is a clone. We only want to report this if the '-r' 1015 * wasn't specified, or the target is a snapshot. 1016 */ 1017 if (!cbp->cb_recurse && 1018 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1019 goto out; 1020 1021 if (cbp->cb_first) { 1022 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1023 "%s has dependent clones\n"), 1024 zfs_get_name(cbp->cb_target), 1025 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1026 (void) fprintf(stderr, gettext("use '-R' to destroy " 1027 "the following datasets:\n")); 1028 cbp->cb_first = B_FALSE; 1029 cbp->cb_error = B_TRUE; 1030 cbp->cb_dryrun = B_TRUE; 1031 } 1032 1033 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1034 } 1035 1036 out: 1037 zfs_close(zhp); 1038 return (0); 1039 } 1040 1041 static int 1042 destroy_callback(zfs_handle_t *zhp, void *data) 1043 { 1044 destroy_cbdata_t *cb = data; 1045 const char *name = zfs_get_name(zhp); 1046 1047 if (cb->cb_verbose) { 1048 if (cb->cb_parsable) { 1049 (void) printf("destroy\t%s\n", name); 1050 } else if (cb->cb_dryrun) { 1051 (void) printf(gettext("would destroy %s\n"), 1052 name); 1053 } else { 1054 (void) printf(gettext("will destroy %s\n"), 1055 name); 1056 } 1057 } 1058 1059 /* 1060 * Ignore pools (which we've already flagged as an error before getting 1061 * here). 1062 */ 1063 if (strchr(zfs_get_name(zhp), '/') == NULL && 1064 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1065 zfs_close(zhp); 1066 return (0); 1067 } 1068 if (cb->cb_dryrun) { 1069 zfs_close(zhp); 1070 return (0); 1071 } 1072 1073 /* 1074 * We batch up all contiguous snapshots (even of different 1075 * filesystems) and destroy them with one ioctl. We can't 1076 * simply do all snap deletions and then all fs deletions, 1077 * because we must delete a clone before its origin. 1078 */ 1079 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1080 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1081 } else { 1082 int error = zfs_destroy_snaps_nvl(g_zfs, 1083 cb->cb_batchedsnaps, B_FALSE); 1084 fnvlist_free(cb->cb_batchedsnaps); 1085 cb->cb_batchedsnaps = fnvlist_alloc(); 1086 1087 if (error != 0 || 1088 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1089 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1090 zfs_close(zhp); 1091 return (-1); 1092 } 1093 } 1094 1095 zfs_close(zhp); 1096 return (0); 1097 } 1098 1099 static int 1100 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1101 { 1102 destroy_cbdata_t *cb = arg; 1103 const char *name = zfs_get_name(zhp); 1104 int err = 0; 1105 1106 if (nvlist_exists(cb->cb_nvl, name)) { 1107 if (cb->cb_firstsnap == NULL) 1108 cb->cb_firstsnap = strdup(name); 1109 if (cb->cb_prevsnap != NULL) 1110 free(cb->cb_prevsnap); 1111 /* this snap continues the current range */ 1112 cb->cb_prevsnap = strdup(name); 1113 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1114 nomem(); 1115 if (cb->cb_verbose) { 1116 if (cb->cb_parsable) { 1117 (void) printf("destroy\t%s\n", name); 1118 } else if (cb->cb_dryrun) { 1119 (void) printf(gettext("would destroy %s\n"), 1120 name); 1121 } else { 1122 (void) printf(gettext("will destroy %s\n"), 1123 name); 1124 } 1125 } 1126 } else if (cb->cb_firstsnap != NULL) { 1127 /* end of this range */ 1128 uint64_t used = 0; 1129 err = lzc_snaprange_space(cb->cb_firstsnap, 1130 cb->cb_prevsnap, &used); 1131 cb->cb_snapused += used; 1132 free(cb->cb_firstsnap); 1133 cb->cb_firstsnap = NULL; 1134 free(cb->cb_prevsnap); 1135 cb->cb_prevsnap = NULL; 1136 } 1137 zfs_close(zhp); 1138 return (err); 1139 } 1140 1141 static int 1142 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1143 { 1144 int err = 0; 1145 assert(cb->cb_firstsnap == NULL); 1146 assert(cb->cb_prevsnap == NULL); 1147 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1148 if (cb->cb_firstsnap != NULL) { 1149 uint64_t used = 0; 1150 if (err == 0) { 1151 err = lzc_snaprange_space(cb->cb_firstsnap, 1152 cb->cb_prevsnap, &used); 1153 } 1154 cb->cb_snapused += used; 1155 free(cb->cb_firstsnap); 1156 cb->cb_firstsnap = NULL; 1157 free(cb->cb_prevsnap); 1158 cb->cb_prevsnap = NULL; 1159 } 1160 return (err); 1161 } 1162 1163 static int 1164 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1165 { 1166 destroy_cbdata_t *cb = arg; 1167 int err = 0; 1168 1169 /* Check for clones. */ 1170 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1171 cb->cb_target = zhp; 1172 cb->cb_first = B_TRUE; 1173 err = zfs_iter_dependents(zhp, B_TRUE, 1174 destroy_check_dependent, cb); 1175 } 1176 1177 if (err == 0) { 1178 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1179 nomem(); 1180 } 1181 zfs_close(zhp); 1182 return (err); 1183 } 1184 1185 static int 1186 gather_snapshots(zfs_handle_t *zhp, void *arg) 1187 { 1188 destroy_cbdata_t *cb = arg; 1189 int err = 0; 1190 1191 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1192 if (err == ENOENT) 1193 err = 0; 1194 if (err != 0) 1195 goto out; 1196 1197 if (cb->cb_verbose) { 1198 err = destroy_print_snapshots(zhp, cb); 1199 if (err != 0) 1200 goto out; 1201 } 1202 1203 if (cb->cb_recurse) 1204 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1205 1206 out: 1207 zfs_close(zhp); 1208 return (err); 1209 } 1210 1211 static int 1212 destroy_clones(destroy_cbdata_t *cb) 1213 { 1214 nvpair_t *pair; 1215 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1216 pair != NULL; 1217 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1218 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1219 ZFS_TYPE_SNAPSHOT); 1220 if (zhp != NULL) { 1221 boolean_t defer = cb->cb_defer_destroy; 1222 int err = 0; 1223 1224 /* 1225 * We can't defer destroy non-snapshots, so set it to 1226 * false while destroying the clones. 1227 */ 1228 cb->cb_defer_destroy = B_FALSE; 1229 err = zfs_iter_dependents(zhp, B_FALSE, 1230 destroy_callback, cb); 1231 cb->cb_defer_destroy = defer; 1232 zfs_close(zhp); 1233 if (err != 0) 1234 return (err); 1235 } 1236 } 1237 return (0); 1238 } 1239 1240 static int 1241 zfs_do_destroy(int argc, char **argv) 1242 { 1243 destroy_cbdata_t cb = { 0 }; 1244 int rv = 0; 1245 int err = 0; 1246 int c; 1247 zfs_handle_t *zhp = NULL; 1248 char *at, *pound; 1249 zfs_type_t type = ZFS_TYPE_DATASET; 1250 1251 /* check options */ 1252 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1253 switch (c) { 1254 case 'v': 1255 cb.cb_verbose = B_TRUE; 1256 break; 1257 case 'p': 1258 cb.cb_verbose = B_TRUE; 1259 cb.cb_parsable = B_TRUE; 1260 break; 1261 case 'n': 1262 cb.cb_dryrun = B_TRUE; 1263 break; 1264 case 'd': 1265 cb.cb_defer_destroy = B_TRUE; 1266 type = ZFS_TYPE_SNAPSHOT; 1267 break; 1268 case 'f': 1269 cb.cb_force = B_TRUE; 1270 break; 1271 case 'r': 1272 cb.cb_recurse = B_TRUE; 1273 break; 1274 case 'R': 1275 cb.cb_recurse = B_TRUE; 1276 cb.cb_doclones = B_TRUE; 1277 break; 1278 case '?': 1279 default: 1280 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1281 optopt); 1282 usage(B_FALSE); 1283 } 1284 } 1285 1286 argc -= optind; 1287 argv += optind; 1288 1289 /* check number of arguments */ 1290 if (argc == 0) { 1291 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1292 usage(B_FALSE); 1293 } 1294 if (argc > 1) { 1295 (void) fprintf(stderr, gettext("too many arguments\n")); 1296 usage(B_FALSE); 1297 } 1298 1299 at = strchr(argv[0], '@'); 1300 pound = strchr(argv[0], '#'); 1301 if (at != NULL) { 1302 1303 /* Build the list of snaps to destroy in cb_nvl. */ 1304 cb.cb_nvl = fnvlist_alloc(); 1305 1306 *at = '\0'; 1307 zhp = zfs_open(g_zfs, argv[0], 1308 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1309 if (zhp == NULL) 1310 return (1); 1311 1312 cb.cb_snapspec = at + 1; 1313 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1314 cb.cb_error) { 1315 rv = 1; 1316 goto out; 1317 } 1318 1319 if (nvlist_empty(cb.cb_nvl)) { 1320 (void) fprintf(stderr, gettext("could not find any " 1321 "snapshots to destroy; check snapshot names.\n")); 1322 rv = 1; 1323 goto out; 1324 } 1325 1326 if (cb.cb_verbose) { 1327 char buf[16]; 1328 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1329 if (cb.cb_parsable) { 1330 (void) printf("reclaim\t%llu\n", 1331 cb.cb_snapused); 1332 } else if (cb.cb_dryrun) { 1333 (void) printf(gettext("would reclaim %s\n"), 1334 buf); 1335 } else { 1336 (void) printf(gettext("will reclaim %s\n"), 1337 buf); 1338 } 1339 } 1340 1341 if (!cb.cb_dryrun) { 1342 if (cb.cb_doclones) { 1343 cb.cb_batchedsnaps = fnvlist_alloc(); 1344 err = destroy_clones(&cb); 1345 if (err == 0) { 1346 err = zfs_destroy_snaps_nvl(g_zfs, 1347 cb.cb_batchedsnaps, B_FALSE); 1348 } 1349 if (err != 0) { 1350 rv = 1; 1351 goto out; 1352 } 1353 } 1354 if (err == 0) { 1355 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1356 cb.cb_defer_destroy); 1357 } 1358 } 1359 1360 if (err != 0) 1361 rv = 1; 1362 } else if (pound != NULL) { 1363 int err; 1364 nvlist_t *nvl; 1365 1366 if (cb.cb_dryrun) { 1367 (void) fprintf(stderr, 1368 "dryrun is not supported with bookmark\n"); 1369 return (-1); 1370 } 1371 1372 if (cb.cb_defer_destroy) { 1373 (void) fprintf(stderr, 1374 "defer destroy is not supported with bookmark\n"); 1375 return (-1); 1376 } 1377 1378 if (cb.cb_recurse) { 1379 (void) fprintf(stderr, 1380 "recursive is not supported with bookmark\n"); 1381 return (-1); 1382 } 1383 1384 if (!zfs_bookmark_exists(argv[0])) { 1385 (void) fprintf(stderr, gettext("bookmark '%s' " 1386 "does not exist.\n"), argv[0]); 1387 return (1); 1388 } 1389 1390 nvl = fnvlist_alloc(); 1391 fnvlist_add_boolean(nvl, argv[0]); 1392 1393 err = lzc_destroy_bookmarks(nvl, NULL); 1394 if (err != 0) { 1395 (void) zfs_standard_error(g_zfs, err, 1396 "cannot destroy bookmark"); 1397 } 1398 1399 nvlist_free(cb.cb_nvl); 1400 1401 return (err); 1402 } else { 1403 /* Open the given dataset */ 1404 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1405 return (1); 1406 1407 cb.cb_target = zhp; 1408 1409 /* 1410 * Perform an explicit check for pools before going any further. 1411 */ 1412 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1413 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1414 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1415 "operation does not apply to pools\n"), 1416 zfs_get_name(zhp)); 1417 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1418 "%s' to destroy all datasets in the pool\n"), 1419 zfs_get_name(zhp)); 1420 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1421 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1422 rv = 1; 1423 goto out; 1424 } 1425 1426 /* 1427 * Check for any dependents and/or clones. 1428 */ 1429 cb.cb_first = B_TRUE; 1430 if (!cb.cb_doclones && 1431 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1432 &cb) != 0) { 1433 rv = 1; 1434 goto out; 1435 } 1436 1437 if (cb.cb_error) { 1438 rv = 1; 1439 goto out; 1440 } 1441 1442 cb.cb_batchedsnaps = fnvlist_alloc(); 1443 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1444 &cb) != 0) { 1445 rv = 1; 1446 goto out; 1447 } 1448 1449 /* 1450 * Do the real thing. The callback will close the 1451 * handle regardless of whether it succeeds or not. 1452 */ 1453 err = destroy_callback(zhp, &cb); 1454 zhp = NULL; 1455 if (err == 0) { 1456 err = zfs_destroy_snaps_nvl(g_zfs, 1457 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1458 } 1459 if (err != 0) 1460 rv = 1; 1461 } 1462 1463 out: 1464 fnvlist_free(cb.cb_batchedsnaps); 1465 fnvlist_free(cb.cb_nvl); 1466 if (zhp != NULL) 1467 zfs_close(zhp); 1468 return (rv); 1469 } 1470 1471 static boolean_t 1472 is_recvd_column(zprop_get_cbdata_t *cbp) 1473 { 1474 int i; 1475 zfs_get_column_t col; 1476 1477 for (i = 0; i < ZFS_GET_NCOLS && 1478 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1479 if (col == GET_COL_RECVD) 1480 return (B_TRUE); 1481 return (B_FALSE); 1482 } 1483 1484 /* 1485 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1486 * < all | property[,property]... > < fs | snap | vol > ... 1487 * 1488 * -r recurse over any child datasets 1489 * -H scripted mode. Headers are stripped, and fields are separated 1490 * by tabs instead of spaces. 1491 * -o Set of fields to display. One of "name,property,value, 1492 * received,source". Default is "name,property,value,source". 1493 * "all" is an alias for all five. 1494 * -s Set of sources to allow. One of 1495 * "local,default,inherited,received,temporary,none". Default is 1496 * all six. 1497 * -p Display values in parsable (literal) format. 1498 * 1499 * Prints properties for the given datasets. The user can control which 1500 * columns to display as well as which property types to allow. 1501 */ 1502 1503 /* 1504 * Invoked to display the properties for a single dataset. 1505 */ 1506 static int 1507 get_callback(zfs_handle_t *zhp, void *data) 1508 { 1509 char buf[ZFS_MAXPROPLEN]; 1510 char rbuf[ZFS_MAXPROPLEN]; 1511 zprop_source_t sourcetype; 1512 char source[ZFS_MAX_DATASET_NAME_LEN]; 1513 zprop_get_cbdata_t *cbp = data; 1514 nvlist_t *user_props = zfs_get_user_props(zhp); 1515 zprop_list_t *pl = cbp->cb_proplist; 1516 nvlist_t *propval; 1517 char *strval; 1518 char *sourceval; 1519 boolean_t received = is_recvd_column(cbp); 1520 1521 for (; pl != NULL; pl = pl->pl_next) { 1522 char *recvdval = NULL; 1523 /* 1524 * Skip the special fake placeholder. This will also skip over 1525 * the name property when 'all' is specified. 1526 */ 1527 if (pl->pl_prop == ZFS_PROP_NAME && 1528 pl == cbp->cb_proplist) 1529 continue; 1530 1531 if (pl->pl_prop != ZPROP_INVAL) { 1532 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1533 sizeof (buf), &sourcetype, source, 1534 sizeof (source), 1535 cbp->cb_literal) != 0) { 1536 if (pl->pl_all) 1537 continue; 1538 if (!zfs_prop_valid_for_type(pl->pl_prop, 1539 ZFS_TYPE_DATASET)) { 1540 (void) fprintf(stderr, 1541 gettext("No such property '%s'\n"), 1542 zfs_prop_to_name(pl->pl_prop)); 1543 continue; 1544 } 1545 sourcetype = ZPROP_SRC_NONE; 1546 (void) strlcpy(buf, "-", sizeof (buf)); 1547 } 1548 1549 if (received && (zfs_prop_get_recvd(zhp, 1550 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1551 cbp->cb_literal) == 0)) 1552 recvdval = rbuf; 1553 1554 zprop_print_one_property(zfs_get_name(zhp), cbp, 1555 zfs_prop_to_name(pl->pl_prop), 1556 buf, sourcetype, source, recvdval); 1557 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1558 sourcetype = ZPROP_SRC_LOCAL; 1559 1560 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1561 buf, sizeof (buf), cbp->cb_literal) != 0) { 1562 sourcetype = ZPROP_SRC_NONE; 1563 (void) strlcpy(buf, "-", sizeof (buf)); 1564 } 1565 1566 zprop_print_one_property(zfs_get_name(zhp), cbp, 1567 pl->pl_user_prop, buf, sourcetype, source, NULL); 1568 } else if (zfs_prop_written(pl->pl_user_prop)) { 1569 sourcetype = ZPROP_SRC_LOCAL; 1570 1571 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1572 buf, sizeof (buf), cbp->cb_literal) != 0) { 1573 sourcetype = ZPROP_SRC_NONE; 1574 (void) strlcpy(buf, "-", sizeof (buf)); 1575 } 1576 1577 zprop_print_one_property(zfs_get_name(zhp), cbp, 1578 pl->pl_user_prop, buf, sourcetype, source, NULL); 1579 } else { 1580 if (nvlist_lookup_nvlist(user_props, 1581 pl->pl_user_prop, &propval) != 0) { 1582 if (pl->pl_all) 1583 continue; 1584 sourcetype = ZPROP_SRC_NONE; 1585 strval = "-"; 1586 } else { 1587 verify(nvlist_lookup_string(propval, 1588 ZPROP_VALUE, &strval) == 0); 1589 verify(nvlist_lookup_string(propval, 1590 ZPROP_SOURCE, &sourceval) == 0); 1591 1592 if (strcmp(sourceval, 1593 zfs_get_name(zhp)) == 0) { 1594 sourcetype = ZPROP_SRC_LOCAL; 1595 } else if (strcmp(sourceval, 1596 ZPROP_SOURCE_VAL_RECVD) == 0) { 1597 sourcetype = ZPROP_SRC_RECEIVED; 1598 } else { 1599 sourcetype = ZPROP_SRC_INHERITED; 1600 (void) strlcpy(source, 1601 sourceval, sizeof (source)); 1602 } 1603 } 1604 1605 if (received && (zfs_prop_get_recvd(zhp, 1606 pl->pl_user_prop, rbuf, sizeof (rbuf), 1607 cbp->cb_literal) == 0)) 1608 recvdval = rbuf; 1609 1610 zprop_print_one_property(zfs_get_name(zhp), cbp, 1611 pl->pl_user_prop, strval, sourcetype, 1612 source, recvdval); 1613 } 1614 } 1615 1616 return (0); 1617 } 1618 1619 static int 1620 zfs_do_get(int argc, char **argv) 1621 { 1622 zprop_get_cbdata_t cb = { 0 }; 1623 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1624 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1625 char *value, *fields; 1626 int ret = 0; 1627 int limit = 0; 1628 zprop_list_t fake_name = { 0 }; 1629 1630 /* 1631 * Set up default columns and sources. 1632 */ 1633 cb.cb_sources = ZPROP_SRC_ALL; 1634 cb.cb_columns[0] = GET_COL_NAME; 1635 cb.cb_columns[1] = GET_COL_PROPERTY; 1636 cb.cb_columns[2] = GET_COL_VALUE; 1637 cb.cb_columns[3] = GET_COL_SOURCE; 1638 cb.cb_type = ZFS_TYPE_DATASET; 1639 1640 /* check options */ 1641 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1642 switch (c) { 1643 case 'p': 1644 cb.cb_literal = B_TRUE; 1645 break; 1646 case 'd': 1647 limit = parse_depth(optarg, &flags); 1648 break; 1649 case 'r': 1650 flags |= ZFS_ITER_RECURSE; 1651 break; 1652 case 'H': 1653 cb.cb_scripted = B_TRUE; 1654 break; 1655 case ':': 1656 (void) fprintf(stderr, gettext("missing argument for " 1657 "'%c' option\n"), optopt); 1658 usage(B_FALSE); 1659 break; 1660 case 'o': 1661 /* 1662 * Process the set of columns to display. We zero out 1663 * the structure to give us a blank slate. 1664 */ 1665 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1666 i = 0; 1667 while (*optarg != '\0') { 1668 static char *col_subopts[] = 1669 { "name", "property", "value", "received", 1670 "source", "all", NULL }; 1671 1672 if (i == ZFS_GET_NCOLS) { 1673 (void) fprintf(stderr, gettext("too " 1674 "many fields given to -o " 1675 "option\n")); 1676 usage(B_FALSE); 1677 } 1678 1679 switch (getsubopt(&optarg, col_subopts, 1680 &value)) { 1681 case 0: 1682 cb.cb_columns[i++] = GET_COL_NAME; 1683 break; 1684 case 1: 1685 cb.cb_columns[i++] = GET_COL_PROPERTY; 1686 break; 1687 case 2: 1688 cb.cb_columns[i++] = GET_COL_VALUE; 1689 break; 1690 case 3: 1691 cb.cb_columns[i++] = GET_COL_RECVD; 1692 flags |= ZFS_ITER_RECVD_PROPS; 1693 break; 1694 case 4: 1695 cb.cb_columns[i++] = GET_COL_SOURCE; 1696 break; 1697 case 5: 1698 if (i > 0) { 1699 (void) fprintf(stderr, 1700 gettext("\"all\" conflicts " 1701 "with specific fields " 1702 "given to -o option\n")); 1703 usage(B_FALSE); 1704 } 1705 cb.cb_columns[0] = GET_COL_NAME; 1706 cb.cb_columns[1] = GET_COL_PROPERTY; 1707 cb.cb_columns[2] = GET_COL_VALUE; 1708 cb.cb_columns[3] = GET_COL_RECVD; 1709 cb.cb_columns[4] = GET_COL_SOURCE; 1710 flags |= ZFS_ITER_RECVD_PROPS; 1711 i = ZFS_GET_NCOLS; 1712 break; 1713 default: 1714 (void) fprintf(stderr, 1715 gettext("invalid column name " 1716 "'%s'\n"), value); 1717 usage(B_FALSE); 1718 } 1719 } 1720 break; 1721 1722 case 's': 1723 cb.cb_sources = 0; 1724 while (*optarg != '\0') { 1725 static char *source_subopts[] = { 1726 "local", "default", "inherited", 1727 "received", "temporary", "none", 1728 NULL }; 1729 1730 switch (getsubopt(&optarg, source_subopts, 1731 &value)) { 1732 case 0: 1733 cb.cb_sources |= ZPROP_SRC_LOCAL; 1734 break; 1735 case 1: 1736 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1737 break; 1738 case 2: 1739 cb.cb_sources |= ZPROP_SRC_INHERITED; 1740 break; 1741 case 3: 1742 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1743 break; 1744 case 4: 1745 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1746 break; 1747 case 5: 1748 cb.cb_sources |= ZPROP_SRC_NONE; 1749 break; 1750 default: 1751 (void) fprintf(stderr, 1752 gettext("invalid source " 1753 "'%s'\n"), value); 1754 usage(B_FALSE); 1755 } 1756 } 1757 break; 1758 1759 case 't': 1760 types = 0; 1761 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1762 while (*optarg != '\0') { 1763 static char *type_subopts[] = { "filesystem", 1764 "volume", "snapshot", "bookmark", 1765 "all", NULL }; 1766 1767 switch (getsubopt(&optarg, type_subopts, 1768 &value)) { 1769 case 0: 1770 types |= ZFS_TYPE_FILESYSTEM; 1771 break; 1772 case 1: 1773 types |= ZFS_TYPE_VOLUME; 1774 break; 1775 case 2: 1776 types |= ZFS_TYPE_SNAPSHOT; 1777 break; 1778 case 3: 1779 types |= ZFS_TYPE_BOOKMARK; 1780 break; 1781 case 4: 1782 types = ZFS_TYPE_DATASET | 1783 ZFS_TYPE_BOOKMARK; 1784 break; 1785 1786 default: 1787 (void) fprintf(stderr, 1788 gettext("invalid type '%s'\n"), 1789 value); 1790 usage(B_FALSE); 1791 } 1792 } 1793 break; 1794 1795 case '?': 1796 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1797 optopt); 1798 usage(B_FALSE); 1799 } 1800 } 1801 1802 argc -= optind; 1803 argv += optind; 1804 1805 if (argc < 1) { 1806 (void) fprintf(stderr, gettext("missing property " 1807 "argument\n")); 1808 usage(B_FALSE); 1809 } 1810 1811 fields = argv[0]; 1812 1813 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1814 != 0) 1815 usage(B_FALSE); 1816 1817 argc--; 1818 argv++; 1819 1820 /* 1821 * As part of zfs_expand_proplist(), we keep track of the maximum column 1822 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1823 * need to know the maximum name length. However, the user likely did 1824 * not specify 'name' as one of the properties to fetch, so we need to 1825 * make sure we always include at least this property for 1826 * print_get_headers() to work properly. 1827 */ 1828 if (cb.cb_proplist != NULL) { 1829 fake_name.pl_prop = ZFS_PROP_NAME; 1830 fake_name.pl_width = strlen(gettext("NAME")); 1831 fake_name.pl_next = cb.cb_proplist; 1832 cb.cb_proplist = &fake_name; 1833 } 1834 1835 cb.cb_first = B_TRUE; 1836 1837 /* run for each object */ 1838 ret = zfs_for_each(argc, argv, flags, types, NULL, 1839 &cb.cb_proplist, limit, get_callback, &cb); 1840 1841 if (cb.cb_proplist == &fake_name) 1842 zprop_free_list(fake_name.pl_next); 1843 else 1844 zprop_free_list(cb.cb_proplist); 1845 1846 return (ret); 1847 } 1848 1849 /* 1850 * inherit [-rS] <property> <fs|vol> ... 1851 * 1852 * -r Recurse over all children 1853 * -S Revert to received value, if any 1854 * 1855 * For each dataset specified on the command line, inherit the given property 1856 * from its parent. Inheriting a property at the pool level will cause it to 1857 * use the default value. The '-r' flag will recurse over all children, and is 1858 * useful for setting a property on a hierarchy-wide basis, regardless of any 1859 * local modifications for each dataset. 1860 */ 1861 1862 typedef struct inherit_cbdata { 1863 const char *cb_propname; 1864 boolean_t cb_received; 1865 } inherit_cbdata_t; 1866 1867 static int 1868 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1869 { 1870 inherit_cbdata_t *cb = data; 1871 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1872 1873 /* 1874 * If we're doing it recursively, then ignore properties that 1875 * are not valid for this type of dataset. 1876 */ 1877 if (prop != ZPROP_INVAL && 1878 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1879 return (0); 1880 1881 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1882 } 1883 1884 static int 1885 inherit_cb(zfs_handle_t *zhp, void *data) 1886 { 1887 inherit_cbdata_t *cb = data; 1888 1889 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1890 } 1891 1892 static int 1893 zfs_do_inherit(int argc, char **argv) 1894 { 1895 int c; 1896 zfs_prop_t prop; 1897 inherit_cbdata_t cb = { 0 }; 1898 char *propname; 1899 int ret = 0; 1900 int flags = 0; 1901 boolean_t received = B_FALSE; 1902 1903 /* check options */ 1904 while ((c = getopt(argc, argv, "rS")) != -1) { 1905 switch (c) { 1906 case 'r': 1907 flags |= ZFS_ITER_RECURSE; 1908 break; 1909 case 'S': 1910 received = B_TRUE; 1911 break; 1912 case '?': 1913 default: 1914 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1915 optopt); 1916 usage(B_FALSE); 1917 } 1918 } 1919 1920 argc -= optind; 1921 argv += optind; 1922 1923 /* check number of arguments */ 1924 if (argc < 1) { 1925 (void) fprintf(stderr, gettext("missing property argument\n")); 1926 usage(B_FALSE); 1927 } 1928 if (argc < 2) { 1929 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1930 usage(B_FALSE); 1931 } 1932 1933 propname = argv[0]; 1934 argc--; 1935 argv++; 1936 1937 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1938 if (zfs_prop_readonly(prop)) { 1939 (void) fprintf(stderr, gettext( 1940 "%s property is read-only\n"), 1941 propname); 1942 return (1); 1943 } 1944 if (!zfs_prop_inheritable(prop) && !received) { 1945 (void) fprintf(stderr, gettext("'%s' property cannot " 1946 "be inherited\n"), propname); 1947 if (prop == ZFS_PROP_QUOTA || 1948 prop == ZFS_PROP_RESERVATION || 1949 prop == ZFS_PROP_REFQUOTA || 1950 prop == ZFS_PROP_REFRESERVATION) { 1951 (void) fprintf(stderr, gettext("use 'zfs set " 1952 "%s=none' to clear\n"), propname); 1953 (void) fprintf(stderr, gettext("use 'zfs " 1954 "inherit -S %s' to revert to received " 1955 "value\n"), propname); 1956 } 1957 return (1); 1958 } 1959 if (received && (prop == ZFS_PROP_VOLSIZE || 1960 prop == ZFS_PROP_VERSION)) { 1961 (void) fprintf(stderr, gettext("'%s' property cannot " 1962 "be reverted to a received value\n"), propname); 1963 return (1); 1964 } 1965 } else if (!zfs_prop_user(propname)) { 1966 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1967 propname); 1968 usage(B_FALSE); 1969 } 1970 1971 cb.cb_propname = propname; 1972 cb.cb_received = received; 1973 1974 if (flags & ZFS_ITER_RECURSE) { 1975 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1976 NULL, NULL, 0, inherit_recurse_cb, &cb); 1977 } else { 1978 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1979 NULL, NULL, 0, inherit_cb, &cb); 1980 } 1981 1982 return (ret); 1983 } 1984 1985 typedef struct upgrade_cbdata { 1986 uint64_t cb_numupgraded; 1987 uint64_t cb_numsamegraded; 1988 uint64_t cb_numfailed; 1989 uint64_t cb_version; 1990 boolean_t cb_newer; 1991 boolean_t cb_foundone; 1992 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1993 } upgrade_cbdata_t; 1994 1995 static int 1996 same_pool(zfs_handle_t *zhp, const char *name) 1997 { 1998 int len1 = strcspn(name, "/@"); 1999 const char *zhname = zfs_get_name(zhp); 2000 int len2 = strcspn(zhname, "/@"); 2001 2002 if (len1 != len2) 2003 return (B_FALSE); 2004 return (strncmp(name, zhname, len1) == 0); 2005 } 2006 2007 static int 2008 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2009 { 2010 upgrade_cbdata_t *cb = data; 2011 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2012 2013 /* list if it's old/new */ 2014 if ((!cb->cb_newer && version < ZPL_VERSION) || 2015 (cb->cb_newer && version > ZPL_VERSION)) { 2016 char *str; 2017 if (cb->cb_newer) { 2018 str = gettext("The following filesystems are " 2019 "formatted using a newer software version and\n" 2020 "cannot be accessed on the current system.\n\n"); 2021 } else { 2022 str = gettext("The following filesystems are " 2023 "out of date, and can be upgraded. After being\n" 2024 "upgraded, these filesystems (and any 'zfs send' " 2025 "streams generated from\n" 2026 "subsequent snapshots) will no longer be " 2027 "accessible by older software versions.\n\n"); 2028 } 2029 2030 if (!cb->cb_foundone) { 2031 (void) puts(str); 2032 (void) printf(gettext("VER FILESYSTEM\n")); 2033 (void) printf(gettext("--- ------------\n")); 2034 cb->cb_foundone = B_TRUE; 2035 } 2036 2037 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2038 } 2039 2040 return (0); 2041 } 2042 2043 static int 2044 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2045 { 2046 upgrade_cbdata_t *cb = data; 2047 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2048 int needed_spa_version; 2049 int spa_version; 2050 2051 if (zfs_spa_version(zhp, &spa_version) < 0) 2052 return (-1); 2053 2054 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2055 2056 if (needed_spa_version < 0) 2057 return (-1); 2058 2059 if (spa_version < needed_spa_version) { 2060 /* can't upgrade */ 2061 (void) printf(gettext("%s: can not be " 2062 "upgraded; the pool version needs to first " 2063 "be upgraded\nto version %d\n\n"), 2064 zfs_get_name(zhp), needed_spa_version); 2065 cb->cb_numfailed++; 2066 return (0); 2067 } 2068 2069 /* upgrade */ 2070 if (version < cb->cb_version) { 2071 char verstr[16]; 2072 (void) snprintf(verstr, sizeof (verstr), 2073 "%llu", cb->cb_version); 2074 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2075 /* 2076 * If they did "zfs upgrade -a", then we could 2077 * be doing ioctls to different pools. We need 2078 * to log this history once to each pool, and bypass 2079 * the normal history logging that happens in main(). 2080 */ 2081 (void) zpool_log_history(g_zfs, history_str); 2082 log_history = B_FALSE; 2083 } 2084 if (zfs_prop_set(zhp, "version", verstr) == 0) 2085 cb->cb_numupgraded++; 2086 else 2087 cb->cb_numfailed++; 2088 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2089 } else if (version > cb->cb_version) { 2090 /* can't downgrade */ 2091 (void) printf(gettext("%s: can not be downgraded; " 2092 "it is already at version %u\n"), 2093 zfs_get_name(zhp), version); 2094 cb->cb_numfailed++; 2095 } else { 2096 cb->cb_numsamegraded++; 2097 } 2098 return (0); 2099 } 2100 2101 /* 2102 * zfs upgrade 2103 * zfs upgrade -v 2104 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2105 */ 2106 static int 2107 zfs_do_upgrade(int argc, char **argv) 2108 { 2109 boolean_t all = B_FALSE; 2110 boolean_t showversions = B_FALSE; 2111 int ret = 0; 2112 upgrade_cbdata_t cb = { 0 }; 2113 char c; 2114 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2115 2116 /* check options */ 2117 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2118 switch (c) { 2119 case 'r': 2120 flags |= ZFS_ITER_RECURSE; 2121 break; 2122 case 'v': 2123 showversions = B_TRUE; 2124 break; 2125 case 'V': 2126 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2127 optarg, &cb.cb_version) != 0) { 2128 (void) fprintf(stderr, 2129 gettext("invalid version %s\n"), optarg); 2130 usage(B_FALSE); 2131 } 2132 break; 2133 case 'a': 2134 all = B_TRUE; 2135 break; 2136 case '?': 2137 default: 2138 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2139 optopt); 2140 usage(B_FALSE); 2141 } 2142 } 2143 2144 argc -= optind; 2145 argv += optind; 2146 2147 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2148 usage(B_FALSE); 2149 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2150 cb.cb_version || argc)) 2151 usage(B_FALSE); 2152 if ((all || argc) && (showversions)) 2153 usage(B_FALSE); 2154 if (all && argc) 2155 usage(B_FALSE); 2156 2157 if (showversions) { 2158 /* Show info on available versions. */ 2159 (void) printf(gettext("The following filesystem versions are " 2160 "supported:\n\n")); 2161 (void) printf(gettext("VER DESCRIPTION\n")); 2162 (void) printf("--- -----------------------------------------" 2163 "---------------\n"); 2164 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2165 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2166 (void) printf(gettext(" 3 Case insensitive and filesystem " 2167 "user identifier (FUID)\n")); 2168 (void) printf(gettext(" 4 userquota, groupquota " 2169 "properties\n")); 2170 (void) printf(gettext(" 5 System attributes\n")); 2171 (void) printf(gettext("\nFor more information on a particular " 2172 "version, including supported releases,\n")); 2173 (void) printf("see the ZFS Administration Guide.\n\n"); 2174 ret = 0; 2175 } else if (argc || all) { 2176 /* Upgrade filesystems */ 2177 if (cb.cb_version == 0) 2178 cb.cb_version = ZPL_VERSION; 2179 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2180 NULL, NULL, 0, upgrade_set_callback, &cb); 2181 (void) printf(gettext("%llu filesystems upgraded\n"), 2182 cb.cb_numupgraded); 2183 if (cb.cb_numsamegraded) { 2184 (void) printf(gettext("%llu filesystems already at " 2185 "this version\n"), 2186 cb.cb_numsamegraded); 2187 } 2188 if (cb.cb_numfailed != 0) 2189 ret = 1; 2190 } else { 2191 /* List old-version filesytems */ 2192 boolean_t found; 2193 (void) printf(gettext("This system is currently running " 2194 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2195 2196 flags |= ZFS_ITER_RECURSE; 2197 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2198 NULL, NULL, 0, upgrade_list_callback, &cb); 2199 2200 found = cb.cb_foundone; 2201 cb.cb_foundone = B_FALSE; 2202 cb.cb_newer = B_TRUE; 2203 2204 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2205 NULL, NULL, 0, upgrade_list_callback, &cb); 2206 2207 if (!cb.cb_foundone && !found) { 2208 (void) printf(gettext("All filesystems are " 2209 "formatted with the current version.\n")); 2210 } 2211 } 2212 2213 return (ret); 2214 } 2215 2216 /* 2217 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2218 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2219 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2220 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2221 * 2222 * -H Scripted mode; elide headers and separate columns by tabs. 2223 * -i Translate SID to POSIX ID. 2224 * -n Print numeric ID instead of user/group name. 2225 * -o Control which fields to display. 2226 * -p Use exact (parsable) numeric output. 2227 * -s Specify sort columns, descending order. 2228 * -S Specify sort columns, ascending order. 2229 * -t Control which object types to display. 2230 * 2231 * Displays space consumed by, and quotas on, each user in the specified 2232 * filesystem or snapshot. 2233 */ 2234 2235 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2236 enum us_field_types { 2237 USFIELD_TYPE, 2238 USFIELD_NAME, 2239 USFIELD_USED, 2240 USFIELD_QUOTA 2241 }; 2242 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2243 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2244 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2245 2246 #define USTYPE_PSX_GRP (1 << 0) 2247 #define USTYPE_PSX_USR (1 << 1) 2248 #define USTYPE_SMB_GRP (1 << 2) 2249 #define USTYPE_SMB_USR (1 << 3) 2250 #define USTYPE_ALL \ 2251 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2252 2253 static int us_type_bits[] = { 2254 USTYPE_PSX_GRP, 2255 USTYPE_PSX_USR, 2256 USTYPE_SMB_GRP, 2257 USTYPE_SMB_USR, 2258 USTYPE_ALL 2259 }; 2260 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2261 "smbuser", "all" }; 2262 2263 typedef struct us_node { 2264 nvlist_t *usn_nvl; 2265 uu_avl_node_t usn_avlnode; 2266 uu_list_node_t usn_listnode; 2267 } us_node_t; 2268 2269 typedef struct us_cbdata { 2270 nvlist_t **cb_nvlp; 2271 uu_avl_pool_t *cb_avl_pool; 2272 uu_avl_t *cb_avl; 2273 boolean_t cb_numname; 2274 boolean_t cb_nicenum; 2275 boolean_t cb_sid2posix; 2276 zfs_userquota_prop_t cb_prop; 2277 zfs_sort_column_t *cb_sortcol; 2278 size_t cb_width[USFIELD_LAST]; 2279 } us_cbdata_t; 2280 2281 static boolean_t us_populated = B_FALSE; 2282 2283 typedef struct { 2284 zfs_sort_column_t *si_sortcol; 2285 boolean_t si_numname; 2286 } us_sort_info_t; 2287 2288 static int 2289 us_field_index(char *field) 2290 { 2291 int i; 2292 2293 for (i = 0; i < USFIELD_LAST; i++) { 2294 if (strcmp(field, us_field_names[i]) == 0) 2295 return (i); 2296 } 2297 2298 return (-1); 2299 } 2300 2301 static int 2302 us_compare(const void *larg, const void *rarg, void *unused) 2303 { 2304 const us_node_t *l = larg; 2305 const us_node_t *r = rarg; 2306 us_sort_info_t *si = (us_sort_info_t *)unused; 2307 zfs_sort_column_t *sortcol = si->si_sortcol; 2308 boolean_t numname = si->si_numname; 2309 nvlist_t *lnvl = l->usn_nvl; 2310 nvlist_t *rnvl = r->usn_nvl; 2311 int rc = 0; 2312 boolean_t lvb, rvb; 2313 2314 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2315 char *lvstr = ""; 2316 char *rvstr = ""; 2317 uint32_t lv32 = 0; 2318 uint32_t rv32 = 0; 2319 uint64_t lv64 = 0; 2320 uint64_t rv64 = 0; 2321 zfs_prop_t prop = sortcol->sc_prop; 2322 const char *propname = NULL; 2323 boolean_t reverse = sortcol->sc_reverse; 2324 2325 switch (prop) { 2326 case ZFS_PROP_TYPE: 2327 propname = "type"; 2328 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2329 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2330 if (rv32 != lv32) 2331 rc = (rv32 < lv32) ? 1 : -1; 2332 break; 2333 case ZFS_PROP_NAME: 2334 propname = "name"; 2335 if (numname) { 2336 (void) nvlist_lookup_uint64(lnvl, propname, 2337 &lv64); 2338 (void) nvlist_lookup_uint64(rnvl, propname, 2339 &rv64); 2340 if (rv64 != lv64) 2341 rc = (rv64 < lv64) ? 1 : -1; 2342 } else { 2343 (void) nvlist_lookup_string(lnvl, propname, 2344 &lvstr); 2345 (void) nvlist_lookup_string(rnvl, propname, 2346 &rvstr); 2347 rc = strcmp(lvstr, rvstr); 2348 } 2349 break; 2350 case ZFS_PROP_USED: 2351 case ZFS_PROP_QUOTA: 2352 if (!us_populated) 2353 break; 2354 if (prop == ZFS_PROP_USED) 2355 propname = "used"; 2356 else 2357 propname = "quota"; 2358 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2359 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2360 if (rv64 != lv64) 2361 rc = (rv64 < lv64) ? 1 : -1; 2362 break; 2363 2364 default: 2365 break; 2366 } 2367 2368 if (rc != 0) { 2369 if (rc < 0) 2370 return (reverse ? 1 : -1); 2371 else 2372 return (reverse ? -1 : 1); 2373 } 2374 } 2375 2376 /* 2377 * If entries still seem to be the same, check if they are of the same 2378 * type (smbentity is added only if we are doing SID to POSIX ID 2379 * translation where we can have duplicate type/name combinations). 2380 */ 2381 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2382 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2383 lvb != rvb) 2384 return (lvb < rvb ? -1 : 1); 2385 2386 return (0); 2387 } 2388 2389 static inline const char * 2390 us_type2str(unsigned field_type) 2391 { 2392 switch (field_type) { 2393 case USTYPE_PSX_USR: 2394 return ("POSIX User"); 2395 case USTYPE_PSX_GRP: 2396 return ("POSIX Group"); 2397 case USTYPE_SMB_USR: 2398 return ("SMB User"); 2399 case USTYPE_SMB_GRP: 2400 return ("SMB Group"); 2401 default: 2402 return ("Undefined"); 2403 } 2404 } 2405 2406 static int 2407 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2408 { 2409 us_cbdata_t *cb = (us_cbdata_t *)arg; 2410 zfs_userquota_prop_t prop = cb->cb_prop; 2411 char *name = NULL; 2412 char *propname; 2413 char sizebuf[32]; 2414 us_node_t *node; 2415 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2416 uu_avl_t *avl = cb->cb_avl; 2417 uu_avl_index_t idx; 2418 nvlist_t *props; 2419 us_node_t *n; 2420 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2421 unsigned type = 0; 2422 const char *typestr; 2423 size_t namelen; 2424 size_t typelen; 2425 size_t sizelen; 2426 int typeidx, nameidx, sizeidx; 2427 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2428 boolean_t smbentity = B_FALSE; 2429 2430 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2431 nomem(); 2432 node = safe_malloc(sizeof (us_node_t)); 2433 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2434 node->usn_nvl = props; 2435 2436 if (domain != NULL && domain[0] != '\0') { 2437 /* SMB */ 2438 char sid[MAXNAMELEN + 32]; 2439 uid_t id; 2440 int err; 2441 int flag = IDMAP_REQ_FLG_USE_CACHE; 2442 2443 smbentity = B_TRUE; 2444 2445 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2446 2447 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2448 type = USTYPE_SMB_GRP; 2449 err = sid_to_id(sid, B_FALSE, &id); 2450 } else { 2451 type = USTYPE_SMB_USR; 2452 err = sid_to_id(sid, B_TRUE, &id); 2453 } 2454 2455 if (err == 0) { 2456 rid = id; 2457 if (!cb->cb_sid2posix) { 2458 if (type == USTYPE_SMB_USR) { 2459 (void) idmap_getwinnamebyuid(rid, flag, 2460 &name, NULL); 2461 } else { 2462 (void) idmap_getwinnamebygid(rid, flag, 2463 &name, NULL); 2464 } 2465 if (name == NULL) 2466 name = sid; 2467 } 2468 } 2469 } 2470 2471 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2472 /* POSIX or -i */ 2473 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2474 type = USTYPE_PSX_GRP; 2475 if (!cb->cb_numname) { 2476 struct group *g; 2477 2478 if ((g = getgrgid(rid)) != NULL) 2479 name = g->gr_name; 2480 } 2481 } else { 2482 type = USTYPE_PSX_USR; 2483 if (!cb->cb_numname) { 2484 struct passwd *p; 2485 2486 if ((p = getpwuid(rid)) != NULL) 2487 name = p->pw_name; 2488 } 2489 } 2490 } 2491 2492 /* 2493 * Make sure that the type/name combination is unique when doing 2494 * SID to POSIX ID translation (hence changing the type from SMB to 2495 * POSIX). 2496 */ 2497 if (cb->cb_sid2posix && 2498 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2499 nomem(); 2500 2501 /* Calculate/update width of TYPE field */ 2502 typestr = us_type2str(type); 2503 typelen = strlen(gettext(typestr)); 2504 typeidx = us_field_index("type"); 2505 if (typelen > cb->cb_width[typeidx]) 2506 cb->cb_width[typeidx] = typelen; 2507 if (nvlist_add_uint32(props, "type", type) != 0) 2508 nomem(); 2509 2510 /* Calculate/update width of NAME field */ 2511 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2512 if (nvlist_add_uint64(props, "name", rid) != 0) 2513 nomem(); 2514 namelen = snprintf(NULL, 0, "%u", rid); 2515 } else { 2516 if (nvlist_add_string(props, "name", name) != 0) 2517 nomem(); 2518 namelen = strlen(name); 2519 } 2520 nameidx = us_field_index("name"); 2521 if (namelen > cb->cb_width[nameidx]) 2522 cb->cb_width[nameidx] = namelen; 2523 2524 /* 2525 * Check if this type/name combination is in the list and update it; 2526 * otherwise add new node to the list. 2527 */ 2528 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2529 uu_avl_insert(avl, node, idx); 2530 } else { 2531 nvlist_free(props); 2532 free(node); 2533 node = n; 2534 props = node->usn_nvl; 2535 } 2536 2537 /* Calculate/update width of USED/QUOTA fields */ 2538 if (cb->cb_nicenum) 2539 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2540 else 2541 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2542 sizelen = strlen(sizebuf); 2543 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2544 propname = "used"; 2545 if (!nvlist_exists(props, "quota")) 2546 (void) nvlist_add_uint64(props, "quota", 0); 2547 } else { 2548 propname = "quota"; 2549 if (!nvlist_exists(props, "used")) 2550 (void) nvlist_add_uint64(props, "used", 0); 2551 } 2552 sizeidx = us_field_index(propname); 2553 if (sizelen > cb->cb_width[sizeidx]) 2554 cb->cb_width[sizeidx] = sizelen; 2555 2556 if (nvlist_add_uint64(props, propname, space) != 0) 2557 nomem(); 2558 2559 return (0); 2560 } 2561 2562 static void 2563 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2564 size_t *width, us_node_t *node) 2565 { 2566 nvlist_t *nvl = node->usn_nvl; 2567 char valstr[MAXNAMELEN]; 2568 boolean_t first = B_TRUE; 2569 int cfield = 0; 2570 int field; 2571 uint32_t ustype; 2572 2573 /* Check type */ 2574 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2575 if (!(ustype & types)) 2576 return; 2577 2578 while ((field = fields[cfield]) != USFIELD_LAST) { 2579 nvpair_t *nvp = NULL; 2580 data_type_t type; 2581 uint32_t val32; 2582 uint64_t val64; 2583 char *strval = NULL; 2584 2585 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2586 if (strcmp(nvpair_name(nvp), 2587 us_field_names[field]) == 0) 2588 break; 2589 } 2590 2591 type = nvpair_type(nvp); 2592 switch (type) { 2593 case DATA_TYPE_UINT32: 2594 (void) nvpair_value_uint32(nvp, &val32); 2595 break; 2596 case DATA_TYPE_UINT64: 2597 (void) nvpair_value_uint64(nvp, &val64); 2598 break; 2599 case DATA_TYPE_STRING: 2600 (void) nvpair_value_string(nvp, &strval); 2601 break; 2602 default: 2603 (void) fprintf(stderr, "invalid data type\n"); 2604 } 2605 2606 switch (field) { 2607 case USFIELD_TYPE: 2608 strval = (char *)us_type2str(val32); 2609 break; 2610 case USFIELD_NAME: 2611 if (type == DATA_TYPE_UINT64) { 2612 (void) sprintf(valstr, "%llu", val64); 2613 strval = valstr; 2614 } 2615 break; 2616 case USFIELD_USED: 2617 case USFIELD_QUOTA: 2618 if (type == DATA_TYPE_UINT64) { 2619 if (parsable) { 2620 (void) sprintf(valstr, "%llu", val64); 2621 } else { 2622 zfs_nicenum(val64, valstr, 2623 sizeof (valstr)); 2624 } 2625 if (field == USFIELD_QUOTA && 2626 strcmp(valstr, "0") == 0) 2627 strval = "none"; 2628 else 2629 strval = valstr; 2630 } 2631 break; 2632 } 2633 2634 if (!first) { 2635 if (scripted) 2636 (void) printf("\t"); 2637 else 2638 (void) printf(" "); 2639 } 2640 if (scripted) 2641 (void) printf("%s", strval); 2642 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2643 (void) printf("%-*s", width[field], strval); 2644 else 2645 (void) printf("%*s", width[field], strval); 2646 2647 first = B_FALSE; 2648 cfield++; 2649 } 2650 2651 (void) printf("\n"); 2652 } 2653 2654 static void 2655 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2656 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2657 { 2658 us_node_t *node; 2659 const char *col; 2660 int cfield = 0; 2661 int field; 2662 2663 if (!scripted) { 2664 boolean_t first = B_TRUE; 2665 2666 while ((field = fields[cfield]) != USFIELD_LAST) { 2667 col = gettext(us_field_hdr[field]); 2668 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2669 (void) printf(first ? "%-*s" : " %-*s", 2670 width[field], col); 2671 } else { 2672 (void) printf(first ? "%*s" : " %*s", 2673 width[field], col); 2674 } 2675 first = B_FALSE; 2676 cfield++; 2677 } 2678 (void) printf("\n"); 2679 } 2680 2681 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2682 print_us_node(scripted, parsable, fields, types, width, node); 2683 if (rmnode) 2684 nvlist_free(node->usn_nvl); 2685 } 2686 } 2687 2688 static int 2689 zfs_do_userspace(int argc, char **argv) 2690 { 2691 zfs_handle_t *zhp; 2692 zfs_userquota_prop_t p; 2693 uu_avl_pool_t *avl_pool; 2694 uu_avl_t *avl_tree; 2695 uu_avl_walk_t *walk; 2696 char *delim; 2697 char deffields[] = "type,name,used,quota"; 2698 char *ofield = NULL; 2699 char *tfield = NULL; 2700 int cfield = 0; 2701 int fields[256]; 2702 int i; 2703 boolean_t scripted = B_FALSE; 2704 boolean_t prtnum = B_FALSE; 2705 boolean_t parsable = B_FALSE; 2706 boolean_t sid2posix = B_FALSE; 2707 int ret = 0; 2708 int c; 2709 zfs_sort_column_t *sortcol = NULL; 2710 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2711 us_cbdata_t cb; 2712 us_node_t *node; 2713 us_node_t *rmnode; 2714 uu_list_pool_t *listpool; 2715 uu_list_t *list; 2716 uu_avl_index_t idx = 0; 2717 uu_list_index_t idx2 = 0; 2718 2719 if (argc < 2) 2720 usage(B_FALSE); 2721 2722 if (strcmp(argv[0], "groupspace") == 0) 2723 /* Toggle default group types */ 2724 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2725 2726 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2727 switch (c) { 2728 case 'n': 2729 prtnum = B_TRUE; 2730 break; 2731 case 'H': 2732 scripted = B_TRUE; 2733 break; 2734 case 'p': 2735 parsable = B_TRUE; 2736 break; 2737 case 'o': 2738 ofield = optarg; 2739 break; 2740 case 's': 2741 case 'S': 2742 if (zfs_add_sort_column(&sortcol, optarg, 2743 c == 's' ? B_FALSE : B_TRUE) != 0) { 2744 (void) fprintf(stderr, 2745 gettext("invalid field '%s'\n"), optarg); 2746 usage(B_FALSE); 2747 } 2748 break; 2749 case 't': 2750 tfield = optarg; 2751 break; 2752 case 'i': 2753 sid2posix = B_TRUE; 2754 break; 2755 case ':': 2756 (void) fprintf(stderr, gettext("missing argument for " 2757 "'%c' option\n"), optopt); 2758 usage(B_FALSE); 2759 break; 2760 case '?': 2761 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2762 optopt); 2763 usage(B_FALSE); 2764 } 2765 } 2766 2767 argc -= optind; 2768 argv += optind; 2769 2770 if (argc < 1) { 2771 (void) fprintf(stderr, gettext("missing dataset name\n")); 2772 usage(B_FALSE); 2773 } 2774 if (argc > 1) { 2775 (void) fprintf(stderr, gettext("too many arguments\n")); 2776 usage(B_FALSE); 2777 } 2778 2779 /* Use default output fields if not specified using -o */ 2780 if (ofield == NULL) 2781 ofield = deffields; 2782 do { 2783 if ((delim = strchr(ofield, ',')) != NULL) 2784 *delim = '\0'; 2785 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2786 (void) fprintf(stderr, gettext("invalid type '%s' " 2787 "for -o option\n"), ofield); 2788 return (-1); 2789 } 2790 if (delim != NULL) 2791 ofield = delim + 1; 2792 } while (delim != NULL); 2793 fields[cfield] = USFIELD_LAST; 2794 2795 /* Override output types (-t option) */ 2796 if (tfield != NULL) { 2797 types = 0; 2798 2799 do { 2800 boolean_t found = B_FALSE; 2801 2802 if ((delim = strchr(tfield, ',')) != NULL) 2803 *delim = '\0'; 2804 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2805 i++) { 2806 if (strcmp(tfield, us_type_names[i]) == 0) { 2807 found = B_TRUE; 2808 types |= us_type_bits[i]; 2809 break; 2810 } 2811 } 2812 if (!found) { 2813 (void) fprintf(stderr, gettext("invalid type " 2814 "'%s' for -t option\n"), tfield); 2815 return (-1); 2816 } 2817 if (delim != NULL) 2818 tfield = delim + 1; 2819 } while (delim != NULL); 2820 } 2821 2822 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2823 return (1); 2824 2825 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2826 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2827 nomem(); 2828 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2829 nomem(); 2830 2831 /* Always add default sorting columns */ 2832 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2833 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2834 2835 cb.cb_sortcol = sortcol; 2836 cb.cb_numname = prtnum; 2837 cb.cb_nicenum = !parsable; 2838 cb.cb_avl_pool = avl_pool; 2839 cb.cb_avl = avl_tree; 2840 cb.cb_sid2posix = sid2posix; 2841 2842 for (i = 0; i < USFIELD_LAST; i++) 2843 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2844 2845 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2846 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2847 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2848 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2849 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2850 continue; 2851 cb.cb_prop = p; 2852 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2853 return (ret); 2854 } 2855 2856 /* Sort the list */ 2857 if ((node = uu_avl_first(avl_tree)) == NULL) 2858 return (0); 2859 2860 us_populated = B_TRUE; 2861 2862 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2863 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2864 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2865 uu_list_node_init(node, &node->usn_listnode, listpool); 2866 2867 while (node != NULL) { 2868 rmnode = node; 2869 node = uu_avl_next(avl_tree, node); 2870 uu_avl_remove(avl_tree, rmnode); 2871 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2872 uu_list_insert(list, rmnode, idx2); 2873 } 2874 2875 for (node = uu_list_first(list); node != NULL; 2876 node = uu_list_next(list, node)) { 2877 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2878 2879 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2880 uu_avl_insert(avl_tree, node, idx); 2881 } 2882 2883 uu_list_destroy(list); 2884 uu_list_pool_destroy(listpool); 2885 2886 /* Print and free node nvlist memory */ 2887 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2888 cb.cb_avl); 2889 2890 zfs_free_sort_columns(sortcol); 2891 2892 /* Clean up the AVL tree */ 2893 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2894 nomem(); 2895 2896 while ((node = uu_avl_walk_next(walk)) != NULL) { 2897 uu_avl_remove(cb.cb_avl, node); 2898 free(node); 2899 } 2900 2901 uu_avl_walk_end(walk); 2902 uu_avl_destroy(avl_tree); 2903 uu_avl_pool_destroy(avl_pool); 2904 2905 return (ret); 2906 } 2907 2908 /* 2909 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2910 * [-t type[,...]] [filesystem|volume|snapshot] ... 2911 * 2912 * -H Scripted mode; elide headers and separate columns by tabs. 2913 * -p Display values in parsable (literal) format. 2914 * -r Recurse over all children. 2915 * -d Limit recursion by depth. 2916 * -o Control which fields to display. 2917 * -s Specify sort columns, descending order. 2918 * -S Specify sort columns, ascending order. 2919 * -t Control which object types to display. 2920 * 2921 * When given no arguments, list all filesystems in the system. 2922 * Otherwise, list the specified datasets, optionally recursing down them if 2923 * '-r' is specified. 2924 */ 2925 typedef struct list_cbdata { 2926 boolean_t cb_first; 2927 boolean_t cb_literal; 2928 boolean_t cb_scripted; 2929 zprop_list_t *cb_proplist; 2930 } list_cbdata_t; 2931 2932 /* 2933 * Given a list of columns to display, output appropriate headers for each one. 2934 */ 2935 static void 2936 print_header(list_cbdata_t *cb) 2937 { 2938 zprop_list_t *pl = cb->cb_proplist; 2939 char headerbuf[ZFS_MAXPROPLEN]; 2940 const char *header; 2941 int i; 2942 boolean_t first = B_TRUE; 2943 boolean_t right_justify; 2944 2945 for (; pl != NULL; pl = pl->pl_next) { 2946 if (!first) { 2947 (void) printf(" "); 2948 } else { 2949 first = B_FALSE; 2950 } 2951 2952 right_justify = B_FALSE; 2953 if (pl->pl_prop != ZPROP_INVAL) { 2954 header = zfs_prop_column_name(pl->pl_prop); 2955 right_justify = zfs_prop_align_right(pl->pl_prop); 2956 } else { 2957 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2958 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2959 headerbuf[i] = '\0'; 2960 header = headerbuf; 2961 } 2962 2963 if (pl->pl_next == NULL && !right_justify) 2964 (void) printf("%s", header); 2965 else if (right_justify) 2966 (void) printf("%*s", pl->pl_width, header); 2967 else 2968 (void) printf("%-*s", pl->pl_width, header); 2969 } 2970 2971 (void) printf("\n"); 2972 } 2973 2974 /* 2975 * Given a dataset and a list of fields, print out all the properties according 2976 * to the described layout. 2977 */ 2978 static void 2979 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2980 { 2981 zprop_list_t *pl = cb->cb_proplist; 2982 boolean_t first = B_TRUE; 2983 char property[ZFS_MAXPROPLEN]; 2984 nvlist_t *userprops = zfs_get_user_props(zhp); 2985 nvlist_t *propval; 2986 char *propstr; 2987 boolean_t right_justify; 2988 2989 for (; pl != NULL; pl = pl->pl_next) { 2990 if (!first) { 2991 if (cb->cb_scripted) 2992 (void) printf("\t"); 2993 else 2994 (void) printf(" "); 2995 } else { 2996 first = B_FALSE; 2997 } 2998 2999 if (pl->pl_prop == ZFS_PROP_NAME) { 3000 (void) strlcpy(property, zfs_get_name(zhp), 3001 sizeof (property)); 3002 propstr = property; 3003 right_justify = zfs_prop_align_right(pl->pl_prop); 3004 } else if (pl->pl_prop != ZPROP_INVAL) { 3005 if (zfs_prop_get(zhp, pl->pl_prop, property, 3006 sizeof (property), NULL, NULL, 0, 3007 cb->cb_literal) != 0) 3008 propstr = "-"; 3009 else 3010 propstr = property; 3011 right_justify = zfs_prop_align_right(pl->pl_prop); 3012 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3013 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3014 property, sizeof (property), cb->cb_literal) != 0) 3015 propstr = "-"; 3016 else 3017 propstr = property; 3018 right_justify = B_TRUE; 3019 } else if (zfs_prop_written(pl->pl_user_prop)) { 3020 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3021 property, sizeof (property), cb->cb_literal) != 0) 3022 propstr = "-"; 3023 else 3024 propstr = property; 3025 right_justify = B_TRUE; 3026 } else { 3027 if (nvlist_lookup_nvlist(userprops, 3028 pl->pl_user_prop, &propval) != 0) 3029 propstr = "-"; 3030 else 3031 verify(nvlist_lookup_string(propval, 3032 ZPROP_VALUE, &propstr) == 0); 3033 right_justify = B_FALSE; 3034 } 3035 3036 /* 3037 * If this is being called in scripted mode, or if this is the 3038 * last column and it is left-justified, don't include a width 3039 * format specifier. 3040 */ 3041 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3042 (void) printf("%s", propstr); 3043 else if (right_justify) 3044 (void) printf("%*s", pl->pl_width, propstr); 3045 else 3046 (void) printf("%-*s", pl->pl_width, propstr); 3047 } 3048 3049 (void) printf("\n"); 3050 } 3051 3052 /* 3053 * Generic callback function to list a dataset or snapshot. 3054 */ 3055 static int 3056 list_callback(zfs_handle_t *zhp, void *data) 3057 { 3058 list_cbdata_t *cbp = data; 3059 3060 if (cbp->cb_first) { 3061 if (!cbp->cb_scripted) 3062 print_header(cbp); 3063 cbp->cb_first = B_FALSE; 3064 } 3065 3066 print_dataset(zhp, cbp); 3067 3068 return (0); 3069 } 3070 3071 static int 3072 zfs_do_list(int argc, char **argv) 3073 { 3074 int c; 3075 static char default_fields[] = 3076 "name,used,available,referenced,mountpoint"; 3077 int types = ZFS_TYPE_DATASET; 3078 boolean_t types_specified = B_FALSE; 3079 char *fields = NULL; 3080 list_cbdata_t cb = { 0 }; 3081 char *value; 3082 int limit = 0; 3083 int ret = 0; 3084 zfs_sort_column_t *sortcol = NULL; 3085 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3086 3087 /* check options */ 3088 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3089 switch (c) { 3090 case 'o': 3091 fields = optarg; 3092 break; 3093 case 'p': 3094 cb.cb_literal = B_TRUE; 3095 flags |= ZFS_ITER_LITERAL_PROPS; 3096 break; 3097 case 'd': 3098 limit = parse_depth(optarg, &flags); 3099 break; 3100 case 'r': 3101 flags |= ZFS_ITER_RECURSE; 3102 break; 3103 case 'H': 3104 cb.cb_scripted = B_TRUE; 3105 break; 3106 case 's': 3107 if (zfs_add_sort_column(&sortcol, optarg, 3108 B_FALSE) != 0) { 3109 (void) fprintf(stderr, 3110 gettext("invalid property '%s'\n"), optarg); 3111 usage(B_FALSE); 3112 } 3113 break; 3114 case 'S': 3115 if (zfs_add_sort_column(&sortcol, optarg, 3116 B_TRUE) != 0) { 3117 (void) fprintf(stderr, 3118 gettext("invalid property '%s'\n"), optarg); 3119 usage(B_FALSE); 3120 } 3121 break; 3122 case 't': 3123 types = 0; 3124 types_specified = B_TRUE; 3125 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3126 while (*optarg != '\0') { 3127 static char *type_subopts[] = { "filesystem", 3128 "volume", "snapshot", "snap", "bookmark", 3129 "all", NULL }; 3130 3131 switch (getsubopt(&optarg, type_subopts, 3132 &value)) { 3133 case 0: 3134 types |= ZFS_TYPE_FILESYSTEM; 3135 break; 3136 case 1: 3137 types |= ZFS_TYPE_VOLUME; 3138 break; 3139 case 2: 3140 case 3: 3141 types |= ZFS_TYPE_SNAPSHOT; 3142 break; 3143 case 4: 3144 types |= ZFS_TYPE_BOOKMARK; 3145 break; 3146 case 5: 3147 types = ZFS_TYPE_DATASET | 3148 ZFS_TYPE_BOOKMARK; 3149 break; 3150 default: 3151 (void) fprintf(stderr, 3152 gettext("invalid type '%s'\n"), 3153 value); 3154 usage(B_FALSE); 3155 } 3156 } 3157 break; 3158 case ':': 3159 (void) fprintf(stderr, gettext("missing argument for " 3160 "'%c' option\n"), optopt); 3161 usage(B_FALSE); 3162 break; 3163 case '?': 3164 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3165 optopt); 3166 usage(B_FALSE); 3167 } 3168 } 3169 3170 argc -= optind; 3171 argv += optind; 3172 3173 if (fields == NULL) 3174 fields = default_fields; 3175 3176 /* 3177 * If we are only going to list snapshot names and sort by name, 3178 * then we can use faster version. 3179 */ 3180 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3181 flags |= ZFS_ITER_SIMPLE; 3182 3183 /* 3184 * If "-o space" and no types were specified, don't display snapshots. 3185 */ 3186 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3187 types &= ~ZFS_TYPE_SNAPSHOT; 3188 3189 /* 3190 * If the user specifies '-o all', the zprop_get_list() doesn't 3191 * normally include the name of the dataset. For 'zfs list', we always 3192 * want this property to be first. 3193 */ 3194 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3195 != 0) 3196 usage(B_FALSE); 3197 3198 cb.cb_first = B_TRUE; 3199 3200 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3201 limit, list_callback, &cb); 3202 3203 zprop_free_list(cb.cb_proplist); 3204 zfs_free_sort_columns(sortcol); 3205 3206 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3207 (void) printf(gettext("no datasets available\n")); 3208 3209 return (ret); 3210 } 3211 3212 /* 3213 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3214 * zfs rename [-f] -p <fs | vol> <fs | vol> 3215 * zfs rename -r <snap> <snap> 3216 * 3217 * Renames the given dataset to another of the same type. 3218 * 3219 * The '-p' flag creates all the non-existing ancestors of the target first. 3220 */ 3221 /* ARGSUSED */ 3222 static int 3223 zfs_do_rename(int argc, char **argv) 3224 { 3225 zfs_handle_t *zhp; 3226 int c; 3227 int ret = 0; 3228 boolean_t recurse = B_FALSE; 3229 boolean_t parents = B_FALSE; 3230 boolean_t force_unmount = B_FALSE; 3231 3232 /* check options */ 3233 while ((c = getopt(argc, argv, "prf")) != -1) { 3234 switch (c) { 3235 case 'p': 3236 parents = B_TRUE; 3237 break; 3238 case 'r': 3239 recurse = B_TRUE; 3240 break; 3241 case 'f': 3242 force_unmount = B_TRUE; 3243 break; 3244 case '?': 3245 default: 3246 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3247 optopt); 3248 usage(B_FALSE); 3249 } 3250 } 3251 3252 argc -= optind; 3253 argv += optind; 3254 3255 /* check number of arguments */ 3256 if (argc < 1) { 3257 (void) fprintf(stderr, gettext("missing source dataset " 3258 "argument\n")); 3259 usage(B_FALSE); 3260 } 3261 if (argc < 2) { 3262 (void) fprintf(stderr, gettext("missing target dataset " 3263 "argument\n")); 3264 usage(B_FALSE); 3265 } 3266 if (argc > 2) { 3267 (void) fprintf(stderr, gettext("too many arguments\n")); 3268 usage(B_FALSE); 3269 } 3270 3271 if (recurse && parents) { 3272 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3273 "exclusive\n")); 3274 usage(B_FALSE); 3275 } 3276 3277 if (recurse && strchr(argv[0], '@') == 0) { 3278 (void) fprintf(stderr, gettext("source dataset for recursive " 3279 "rename must be a snapshot\n")); 3280 usage(B_FALSE); 3281 } 3282 3283 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3284 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3285 return (1); 3286 3287 /* If we were asked and the name looks good, try to create ancestors. */ 3288 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3289 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3290 zfs_close(zhp); 3291 return (1); 3292 } 3293 3294 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3295 3296 zfs_close(zhp); 3297 return (ret); 3298 } 3299 3300 /* 3301 * zfs promote <fs> 3302 * 3303 * Promotes the given clone fs to be the parent 3304 */ 3305 /* ARGSUSED */ 3306 static int 3307 zfs_do_promote(int argc, char **argv) 3308 { 3309 zfs_handle_t *zhp; 3310 int ret = 0; 3311 3312 /* check options */ 3313 if (argc > 1 && argv[1][0] == '-') { 3314 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3315 argv[1][1]); 3316 usage(B_FALSE); 3317 } 3318 3319 /* check number of arguments */ 3320 if (argc < 2) { 3321 (void) fprintf(stderr, gettext("missing clone filesystem" 3322 " argument\n")); 3323 usage(B_FALSE); 3324 } 3325 if (argc > 2) { 3326 (void) fprintf(stderr, gettext("too many arguments\n")); 3327 usage(B_FALSE); 3328 } 3329 3330 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3331 if (zhp == NULL) 3332 return (1); 3333 3334 ret = (zfs_promote(zhp) != 0); 3335 3336 3337 zfs_close(zhp); 3338 return (ret); 3339 } 3340 3341 /* 3342 * zfs rollback [-rRf] <snapshot> 3343 * 3344 * -r Delete any intervening snapshots before doing rollback 3345 * -R Delete any snapshots and their clones 3346 * -f ignored for backwards compatability 3347 * 3348 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3349 * since then and making it the active dataset. If more recent snapshots exist, 3350 * the command will complain unless the '-r' flag is given. 3351 */ 3352 typedef struct rollback_cbdata { 3353 uint64_t cb_create; 3354 boolean_t cb_first; 3355 int cb_doclones; 3356 char *cb_target; 3357 int cb_error; 3358 boolean_t cb_recurse; 3359 } rollback_cbdata_t; 3360 3361 static int 3362 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3363 { 3364 rollback_cbdata_t *cbp = data; 3365 3366 if (cbp->cb_first && cbp->cb_recurse) { 3367 (void) fprintf(stderr, gettext("cannot rollback to " 3368 "'%s': clones of previous snapshots exist\n"), 3369 cbp->cb_target); 3370 (void) fprintf(stderr, gettext("use '-R' to " 3371 "force deletion of the following clones and " 3372 "dependents:\n")); 3373 cbp->cb_first = 0; 3374 cbp->cb_error = 1; 3375 } 3376 3377 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3378 3379 zfs_close(zhp); 3380 return (0); 3381 } 3382 3383 /* 3384 * Report any snapshots more recent than the one specified. Used when '-r' is 3385 * not specified. We reuse this same callback for the snapshot dependents - if 3386 * 'cb_dependent' is set, then this is a dependent and we should report it 3387 * without checking the transaction group. 3388 */ 3389 static int 3390 rollback_check(zfs_handle_t *zhp, void *data) 3391 { 3392 rollback_cbdata_t *cbp = data; 3393 3394 if (cbp->cb_doclones) { 3395 zfs_close(zhp); 3396 return (0); 3397 } 3398 3399 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3400 if (cbp->cb_first && !cbp->cb_recurse) { 3401 (void) fprintf(stderr, gettext("cannot " 3402 "rollback to '%s': more recent snapshots " 3403 "or bookmarks exist\n"), 3404 cbp->cb_target); 3405 (void) fprintf(stderr, gettext("use '-r' to " 3406 "force deletion of the following " 3407 "snapshots and bookmarks:\n")); 3408 cbp->cb_first = 0; 3409 cbp->cb_error = 1; 3410 } 3411 3412 if (cbp->cb_recurse) { 3413 if (zfs_iter_dependents(zhp, B_TRUE, 3414 rollback_check_dependent, cbp) != 0) { 3415 zfs_close(zhp); 3416 return (-1); 3417 } 3418 } else { 3419 (void) fprintf(stderr, "%s\n", 3420 zfs_get_name(zhp)); 3421 } 3422 } 3423 zfs_close(zhp); 3424 return (0); 3425 } 3426 3427 static int 3428 zfs_do_rollback(int argc, char **argv) 3429 { 3430 int ret = 0; 3431 int c; 3432 boolean_t force = B_FALSE; 3433 rollback_cbdata_t cb = { 0 }; 3434 zfs_handle_t *zhp, *snap; 3435 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3436 char *delim; 3437 3438 /* check options */ 3439 while ((c = getopt(argc, argv, "rRf")) != -1) { 3440 switch (c) { 3441 case 'r': 3442 cb.cb_recurse = 1; 3443 break; 3444 case 'R': 3445 cb.cb_recurse = 1; 3446 cb.cb_doclones = 1; 3447 break; 3448 case 'f': 3449 force = B_TRUE; 3450 break; 3451 case '?': 3452 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3453 optopt); 3454 usage(B_FALSE); 3455 } 3456 } 3457 3458 argc -= optind; 3459 argv += optind; 3460 3461 /* check number of arguments */ 3462 if (argc < 1) { 3463 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3464 usage(B_FALSE); 3465 } 3466 if (argc > 1) { 3467 (void) fprintf(stderr, gettext("too many arguments\n")); 3468 usage(B_FALSE); 3469 } 3470 3471 /* open the snapshot */ 3472 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3473 return (1); 3474 3475 /* open the parent dataset */ 3476 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3477 verify((delim = strrchr(parentname, '@')) != NULL); 3478 *delim = '\0'; 3479 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3480 zfs_close(snap); 3481 return (1); 3482 } 3483 3484 /* 3485 * Check for more recent snapshots and/or clones based on the presence 3486 * of '-r' and '-R'. 3487 */ 3488 cb.cb_target = argv[0]; 3489 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3490 cb.cb_first = B_TRUE; 3491 cb.cb_error = 0; 3492 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3493 goto out; 3494 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3495 goto out; 3496 3497 if ((ret = cb.cb_error) != 0) 3498 goto out; 3499 3500 /* 3501 * Rollback parent to the given snapshot. 3502 */ 3503 ret = zfs_rollback(zhp, snap, force); 3504 3505 out: 3506 zfs_close(snap); 3507 zfs_close(zhp); 3508 3509 if (ret == 0) 3510 return (0); 3511 else 3512 return (1); 3513 } 3514 3515 /* 3516 * zfs set property=value ... { fs | snap | vol } ... 3517 * 3518 * Sets the given properties for all datasets specified on the command line. 3519 */ 3520 3521 static int 3522 set_callback(zfs_handle_t *zhp, void *data) 3523 { 3524 nvlist_t *props = data; 3525 3526 if (zfs_prop_set_list(zhp, props) != 0) { 3527 switch (libzfs_errno(g_zfs)) { 3528 case EZFS_MOUNTFAILED: 3529 (void) fprintf(stderr, gettext("property may be set " 3530 "but unable to remount filesystem\n")); 3531 break; 3532 case EZFS_SHARENFSFAILED: 3533 (void) fprintf(stderr, gettext("property may be set " 3534 "but unable to reshare filesystem\n")); 3535 break; 3536 } 3537 return (1); 3538 } 3539 return (0); 3540 } 3541 3542 static int 3543 zfs_do_set(int argc, char **argv) 3544 { 3545 nvlist_t *props = NULL; 3546 int ds_start = -1; /* argv idx of first dataset arg */ 3547 int ret = 0; 3548 3549 /* check for options */ 3550 if (argc > 1 && argv[1][0] == '-') { 3551 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3552 argv[1][1]); 3553 usage(B_FALSE); 3554 } 3555 3556 /* check number of arguments */ 3557 if (argc < 2) { 3558 (void) fprintf(stderr, gettext("missing arguments\n")); 3559 usage(B_FALSE); 3560 } 3561 if (argc < 3) { 3562 if (strchr(argv[1], '=') == NULL) { 3563 (void) fprintf(stderr, gettext("missing property=value " 3564 "argument(s)\n")); 3565 } else { 3566 (void) fprintf(stderr, gettext("missing dataset " 3567 "name(s)\n")); 3568 } 3569 usage(B_FALSE); 3570 } 3571 3572 /* validate argument order: prop=val args followed by dataset args */ 3573 for (int i = 1; i < argc; i++) { 3574 if (strchr(argv[i], '=') != NULL) { 3575 if (ds_start > 0) { 3576 /* out-of-order prop=val argument */ 3577 (void) fprintf(stderr, gettext("invalid " 3578 "argument order\n"), i); 3579 usage(B_FALSE); 3580 } 3581 } else if (ds_start < 0) { 3582 ds_start = i; 3583 } 3584 } 3585 if (ds_start < 0) { 3586 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3587 usage(B_FALSE); 3588 } 3589 3590 /* Populate a list of property settings */ 3591 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3592 nomem(); 3593 for (int i = 1; i < ds_start; i++) { 3594 if ((ret = parseprop(props, argv[i])) != 0) 3595 goto error; 3596 } 3597 3598 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3599 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3600 3601 error: 3602 nvlist_free(props); 3603 return (ret); 3604 } 3605 3606 typedef struct snap_cbdata { 3607 nvlist_t *sd_nvl; 3608 boolean_t sd_recursive; 3609 const char *sd_snapname; 3610 } snap_cbdata_t; 3611 3612 static int 3613 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3614 { 3615 snap_cbdata_t *sd = arg; 3616 char *name; 3617 int rv = 0; 3618 int error; 3619 3620 if (sd->sd_recursive && 3621 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3622 zfs_close(zhp); 3623 return (0); 3624 } 3625 3626 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3627 if (error == -1) 3628 nomem(); 3629 fnvlist_add_boolean(sd->sd_nvl, name); 3630 free(name); 3631 3632 if (sd->sd_recursive) 3633 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3634 zfs_close(zhp); 3635 return (rv); 3636 } 3637 3638 /* 3639 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3640 * 3641 * Creates a snapshot with the given name. While functionally equivalent to 3642 * 'zfs create', it is a separate command to differentiate intent. 3643 */ 3644 static int 3645 zfs_do_snapshot(int argc, char **argv) 3646 { 3647 int ret = 0; 3648 char c; 3649 nvlist_t *props; 3650 snap_cbdata_t sd = { 0 }; 3651 boolean_t multiple_snaps = B_FALSE; 3652 3653 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3654 nomem(); 3655 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3656 nomem(); 3657 3658 /* check options */ 3659 while ((c = getopt(argc, argv, "ro:")) != -1) { 3660 switch (c) { 3661 case 'o': 3662 if (parseprop(props, optarg) != 0) 3663 return (1); 3664 break; 3665 case 'r': 3666 sd.sd_recursive = B_TRUE; 3667 multiple_snaps = B_TRUE; 3668 break; 3669 case '?': 3670 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3671 optopt); 3672 goto usage; 3673 } 3674 } 3675 3676 argc -= optind; 3677 argv += optind; 3678 3679 /* check number of arguments */ 3680 if (argc < 1) { 3681 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3682 goto usage; 3683 } 3684 3685 if (argc > 1) 3686 multiple_snaps = B_TRUE; 3687 for (; argc > 0; argc--, argv++) { 3688 char *atp; 3689 zfs_handle_t *zhp; 3690 3691 atp = strchr(argv[0], '@'); 3692 if (atp == NULL) 3693 goto usage; 3694 *atp = '\0'; 3695 sd.sd_snapname = atp + 1; 3696 zhp = zfs_open(g_zfs, argv[0], 3697 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3698 if (zhp == NULL) 3699 goto usage; 3700 if (zfs_snapshot_cb(zhp, &sd) != 0) 3701 goto usage; 3702 } 3703 3704 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3705 nvlist_free(sd.sd_nvl); 3706 nvlist_free(props); 3707 if (ret != 0 && multiple_snaps) 3708 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3709 return (ret != 0); 3710 3711 usage: 3712 nvlist_free(sd.sd_nvl); 3713 nvlist_free(props); 3714 usage(B_FALSE); 3715 return (-1); 3716 } 3717 3718 /* 3719 * Send a backup stream to stdout. 3720 */ 3721 static int 3722 zfs_do_send(int argc, char **argv) 3723 { 3724 char *fromname = NULL; 3725 char *toname = NULL; 3726 char *resume_token = NULL; 3727 char *cp; 3728 zfs_handle_t *zhp; 3729 sendflags_t flags = { 0 }; 3730 int c, err; 3731 nvlist_t *dbgnv = NULL; 3732 boolean_t extraverbose = B_FALSE; 3733 3734 struct option long_options[] = { 3735 {"replicate", no_argument, NULL, 'R'}, 3736 {"props", no_argument, NULL, 'p'}, 3737 {"parsable", no_argument, NULL, 'P'}, 3738 {"dedup", no_argument, NULL, 'D'}, 3739 {"verbose", no_argument, NULL, 'v'}, 3740 {"dryrun", no_argument, NULL, 'n'}, 3741 {"large-block", no_argument, NULL, 'L'}, 3742 {"embed", no_argument, NULL, 'e'}, 3743 {"resume", required_argument, NULL, 't'}, 3744 {"compressed", no_argument, NULL, 'c'}, 3745 {0, 0, 0, 0} 3746 }; 3747 3748 /* check options */ 3749 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options, 3750 NULL)) != -1) { 3751 switch (c) { 3752 case 'i': 3753 if (fromname) 3754 usage(B_FALSE); 3755 fromname = optarg; 3756 break; 3757 case 'I': 3758 if (fromname) 3759 usage(B_FALSE); 3760 fromname = optarg; 3761 flags.doall = B_TRUE; 3762 break; 3763 case 'R': 3764 flags.replicate = B_TRUE; 3765 break; 3766 case 'p': 3767 flags.props = B_TRUE; 3768 break; 3769 case 'P': 3770 flags.parsable = B_TRUE; 3771 flags.verbose = B_TRUE; 3772 break; 3773 case 'v': 3774 if (flags.verbose) 3775 extraverbose = B_TRUE; 3776 flags.verbose = B_TRUE; 3777 flags.progress = B_TRUE; 3778 break; 3779 case 'D': 3780 flags.dedup = B_TRUE; 3781 break; 3782 case 'n': 3783 flags.dryrun = B_TRUE; 3784 break; 3785 case 'L': 3786 flags.largeblock = B_TRUE; 3787 break; 3788 case 'e': 3789 flags.embed_data = B_TRUE; 3790 break; 3791 case 't': 3792 resume_token = optarg; 3793 break; 3794 case 'c': 3795 flags.compress = B_TRUE; 3796 break; 3797 case ':': 3798 /* 3799 * If a parameter was not passed, optopt contains the 3800 * value that would normally lead us into the 3801 * appropriate case statement. If it's > 256, then this 3802 * must be a longopt and we should look at argv to get 3803 * the string. Otherwise it's just the character, so we 3804 * should use it directly. 3805 */ 3806 if (optopt <= UINT8_MAX) { 3807 (void) fprintf(stderr, 3808 gettext("missing argument for '%c' " 3809 "option\n"), optopt); 3810 } else { 3811 (void) fprintf(stderr, 3812 gettext("missing argument for '%s' " 3813 "option\n"), argv[optind - 1]); 3814 } 3815 usage(B_FALSE); 3816 break; 3817 case '?': 3818 /*FALLTHROUGH*/ 3819 default: 3820 /* 3821 * If an invalid flag was passed, optopt contains the 3822 * character if it was a short flag, or 0 if it was a 3823 * longopt. 3824 */ 3825 if (optopt != 0) { 3826 (void) fprintf(stderr, 3827 gettext("invalid option '%c'\n"), optopt); 3828 } else { 3829 (void) fprintf(stderr, 3830 gettext("invalid option '%s'\n"), 3831 argv[optind - 1]); 3832 3833 } 3834 usage(B_FALSE); 3835 } 3836 } 3837 3838 argc -= optind; 3839 argv += optind; 3840 3841 if (resume_token != NULL) { 3842 if (fromname != NULL || flags.replicate || flags.props || 3843 flags.dedup) { 3844 (void) fprintf(stderr, 3845 gettext("invalid flags combined with -t\n")); 3846 usage(B_FALSE); 3847 } 3848 if (argc != 0) { 3849 (void) fprintf(stderr, gettext("no additional " 3850 "arguments are permitted with -t\n")); 3851 usage(B_FALSE); 3852 } 3853 } else { 3854 if (argc < 1) { 3855 (void) fprintf(stderr, 3856 gettext("missing snapshot argument\n")); 3857 usage(B_FALSE); 3858 } 3859 if (argc > 1) { 3860 (void) fprintf(stderr, gettext("too many arguments\n")); 3861 usage(B_FALSE); 3862 } 3863 } 3864 3865 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3866 (void) fprintf(stderr, 3867 gettext("Error: Stream can not be written to a terminal.\n" 3868 "You must redirect standard output.\n")); 3869 return (1); 3870 } 3871 3872 if (resume_token != NULL) { 3873 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3874 resume_token)); 3875 } 3876 3877 /* 3878 * Special case sending a filesystem, or from a bookmark. 3879 */ 3880 if (strchr(argv[0], '@') == NULL || 3881 (fromname && strchr(fromname, '#') != NULL)) { 3882 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3883 enum lzc_send_flags lzc_flags = 0; 3884 3885 if (flags.replicate || flags.doall || flags.props || 3886 flags.dedup || flags.dryrun || flags.verbose || 3887 flags.progress) { 3888 (void) fprintf(stderr, 3889 gettext("Error: " 3890 "Unsupported flag with filesystem or bookmark.\n")); 3891 return (1); 3892 } 3893 3894 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3895 if (zhp == NULL) 3896 return (1); 3897 3898 if (flags.largeblock) 3899 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3900 if (flags.embed_data) 3901 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3902 if (flags.compress) 3903 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 3904 3905 if (fromname != NULL && 3906 (fromname[0] == '#' || fromname[0] == '@')) { 3907 /* 3908 * Incremental source name begins with # or @. 3909 * Default to same fs as target. 3910 */ 3911 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3912 cp = strchr(frombuf, '@'); 3913 if (cp != NULL) 3914 *cp = '\0'; 3915 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3916 fromname = frombuf; 3917 } 3918 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3919 zfs_close(zhp); 3920 return (err != 0); 3921 } 3922 3923 cp = strchr(argv[0], '@'); 3924 *cp = '\0'; 3925 toname = cp + 1; 3926 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3927 if (zhp == NULL) 3928 return (1); 3929 3930 /* 3931 * If they specified the full path to the snapshot, chop off 3932 * everything except the short name of the snapshot, but special 3933 * case if they specify the origin. 3934 */ 3935 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3936 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3937 zprop_source_t src; 3938 3939 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3940 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3941 3942 if (strcmp(origin, fromname) == 0) { 3943 fromname = NULL; 3944 flags.fromorigin = B_TRUE; 3945 } else { 3946 *cp = '\0'; 3947 if (cp != fromname && strcmp(argv[0], fromname)) { 3948 (void) fprintf(stderr, 3949 gettext("incremental source must be " 3950 "in same filesystem\n")); 3951 usage(B_FALSE); 3952 } 3953 fromname = cp + 1; 3954 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3955 (void) fprintf(stderr, 3956 gettext("invalid incremental source\n")); 3957 usage(B_FALSE); 3958 } 3959 } 3960 } 3961 3962 if (flags.replicate && fromname == NULL) 3963 flags.doall = B_TRUE; 3964 3965 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3966 extraverbose ? &dbgnv : NULL); 3967 3968 if (extraverbose && dbgnv != NULL) { 3969 /* 3970 * dump_nvlist prints to stdout, but that's been 3971 * redirected to a file. Make it print to stderr 3972 * instead. 3973 */ 3974 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3975 dump_nvlist(dbgnv, 0); 3976 nvlist_free(dbgnv); 3977 } 3978 zfs_close(zhp); 3979 3980 return (err != 0); 3981 } 3982 3983 /* 3984 * Restore a backup stream from stdin. 3985 */ 3986 static int 3987 zfs_do_receive(int argc, char **argv) 3988 { 3989 int c, err = 0; 3990 recvflags_t flags = { 0 }; 3991 boolean_t abort_resumable = B_FALSE; 3992 3993 nvlist_t *props; 3994 nvpair_t *nvp = NULL; 3995 3996 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3997 nomem(); 3998 3999 /* check options */ 4000 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 4001 switch (c) { 4002 case 'o': 4003 if (parseprop(props, optarg) != 0) 4004 return (1); 4005 break; 4006 case 'd': 4007 flags.isprefix = B_TRUE; 4008 break; 4009 case 'e': 4010 flags.isprefix = B_TRUE; 4011 flags.istail = B_TRUE; 4012 break; 4013 case 'n': 4014 flags.dryrun = B_TRUE; 4015 break; 4016 case 'u': 4017 flags.nomount = B_TRUE; 4018 break; 4019 case 'v': 4020 flags.verbose = B_TRUE; 4021 break; 4022 case 's': 4023 flags.resumable = B_TRUE; 4024 break; 4025 case 'F': 4026 flags.force = B_TRUE; 4027 break; 4028 case 'A': 4029 abort_resumable = B_TRUE; 4030 break; 4031 case ':': 4032 (void) fprintf(stderr, gettext("missing argument for " 4033 "'%c' option\n"), optopt); 4034 usage(B_FALSE); 4035 break; 4036 case '?': 4037 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4038 optopt); 4039 usage(B_FALSE); 4040 } 4041 } 4042 4043 argc -= optind; 4044 argv += optind; 4045 4046 /* check number of arguments */ 4047 if (argc < 1) { 4048 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4049 usage(B_FALSE); 4050 } 4051 if (argc > 1) { 4052 (void) fprintf(stderr, gettext("too many arguments\n")); 4053 usage(B_FALSE); 4054 } 4055 4056 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4057 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4058 (void) fprintf(stderr, gettext("invalid option")); 4059 usage(B_FALSE); 4060 } 4061 } 4062 4063 if (abort_resumable) { 4064 if (flags.isprefix || flags.istail || flags.dryrun || 4065 flags.resumable || flags.nomount) { 4066 (void) fprintf(stderr, gettext("invalid option")); 4067 usage(B_FALSE); 4068 } 4069 4070 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4071 (void) snprintf(namebuf, sizeof (namebuf), 4072 "%s/%%recv", argv[0]); 4073 4074 if (zfs_dataset_exists(g_zfs, namebuf, 4075 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4076 zfs_handle_t *zhp = zfs_open(g_zfs, 4077 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4078 if (zhp == NULL) 4079 return (1); 4080 err = zfs_destroy(zhp, B_FALSE); 4081 } else { 4082 zfs_handle_t *zhp = zfs_open(g_zfs, 4083 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4084 if (zhp == NULL) 4085 usage(B_FALSE); 4086 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4087 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4088 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4089 (void) fprintf(stderr, 4090 gettext("'%s' does not have any " 4091 "resumable receive state to abort\n"), 4092 argv[0]); 4093 return (1); 4094 } 4095 err = zfs_destroy(zhp, B_FALSE); 4096 } 4097 4098 return (err != 0); 4099 } 4100 4101 if (isatty(STDIN_FILENO)) { 4102 (void) fprintf(stderr, 4103 gettext("Error: Backup stream can not be read " 4104 "from a terminal.\n" 4105 "You must redirect standard input.\n")); 4106 return (1); 4107 } 4108 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4109 4110 return (err != 0); 4111 } 4112 4113 /* 4114 * allow/unallow stuff 4115 */ 4116 /* copied from zfs/sys/dsl_deleg.h */ 4117 #define ZFS_DELEG_PERM_CREATE "create" 4118 #define ZFS_DELEG_PERM_DESTROY "destroy" 4119 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4120 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4121 #define ZFS_DELEG_PERM_CLONE "clone" 4122 #define ZFS_DELEG_PERM_PROMOTE "promote" 4123 #define ZFS_DELEG_PERM_RENAME "rename" 4124 #define ZFS_DELEG_PERM_MOUNT "mount" 4125 #define ZFS_DELEG_PERM_SHARE "share" 4126 #define ZFS_DELEG_PERM_SEND "send" 4127 #define ZFS_DELEG_PERM_RECEIVE "receive" 4128 #define ZFS_DELEG_PERM_ALLOW "allow" 4129 #define ZFS_DELEG_PERM_USERPROP "userprop" 4130 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4131 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4132 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4133 #define ZFS_DELEG_PERM_USERUSED "userused" 4134 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4135 #define ZFS_DELEG_PERM_HOLD "hold" 4136 #define ZFS_DELEG_PERM_RELEASE "release" 4137 #define ZFS_DELEG_PERM_DIFF "diff" 4138 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4139 #define ZFS_DELEG_PERM_REMAP "remap" 4140 4141 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4142 4143 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4144 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4145 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4146 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4147 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4148 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4149 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4150 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4151 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4152 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4153 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4154 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4155 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4156 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4157 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4158 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4159 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4160 { ZFS_DELEG_PERM_REMAP, ZFS_DELEG_NOTE_REMAP }, 4161 4162 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4163 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4164 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4165 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4166 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4167 { NULL, ZFS_DELEG_NOTE_NONE } 4168 }; 4169 4170 /* permission structure */ 4171 typedef struct deleg_perm { 4172 zfs_deleg_who_type_t dp_who_type; 4173 const char *dp_name; 4174 boolean_t dp_local; 4175 boolean_t dp_descend; 4176 } deleg_perm_t; 4177 4178 /* */ 4179 typedef struct deleg_perm_node { 4180 deleg_perm_t dpn_perm; 4181 4182 uu_avl_node_t dpn_avl_node; 4183 } deleg_perm_node_t; 4184 4185 typedef struct fs_perm fs_perm_t; 4186 4187 /* permissions set */ 4188 typedef struct who_perm { 4189 zfs_deleg_who_type_t who_type; 4190 const char *who_name; /* id */ 4191 char who_ug_name[256]; /* user/group name */ 4192 fs_perm_t *who_fsperm; /* uplink */ 4193 4194 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4195 } who_perm_t; 4196 4197 /* */ 4198 typedef struct who_perm_node { 4199 who_perm_t who_perm; 4200 uu_avl_node_t who_avl_node; 4201 } who_perm_node_t; 4202 4203 typedef struct fs_perm_set fs_perm_set_t; 4204 /* fs permissions */ 4205 struct fs_perm { 4206 const char *fsp_name; 4207 4208 uu_avl_t *fsp_sc_avl; /* sets,create */ 4209 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4210 4211 fs_perm_set_t *fsp_set; /* uplink */ 4212 }; 4213 4214 /* */ 4215 typedef struct fs_perm_node { 4216 fs_perm_t fspn_fsperm; 4217 uu_avl_t *fspn_avl; 4218 4219 uu_list_node_t fspn_list_node; 4220 } fs_perm_node_t; 4221 4222 /* top level structure */ 4223 struct fs_perm_set { 4224 uu_list_pool_t *fsps_list_pool; 4225 uu_list_t *fsps_list; /* list of fs_perms */ 4226 4227 uu_avl_pool_t *fsps_named_set_avl_pool; 4228 uu_avl_pool_t *fsps_who_perm_avl_pool; 4229 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4230 }; 4231 4232 static inline const char * 4233 deleg_perm_type(zfs_deleg_note_t note) 4234 { 4235 /* subcommands */ 4236 switch (note) { 4237 /* SUBCOMMANDS */ 4238 /* OTHER */ 4239 case ZFS_DELEG_NOTE_GROUPQUOTA: 4240 case ZFS_DELEG_NOTE_GROUPUSED: 4241 case ZFS_DELEG_NOTE_USERPROP: 4242 case ZFS_DELEG_NOTE_USERQUOTA: 4243 case ZFS_DELEG_NOTE_USERUSED: 4244 /* other */ 4245 return (gettext("other")); 4246 default: 4247 return (gettext("subcommand")); 4248 } 4249 } 4250 4251 static int 4252 who_type2weight(zfs_deleg_who_type_t who_type) 4253 { 4254 int res; 4255 switch (who_type) { 4256 case ZFS_DELEG_NAMED_SET_SETS: 4257 case ZFS_DELEG_NAMED_SET: 4258 res = 0; 4259 break; 4260 case ZFS_DELEG_CREATE_SETS: 4261 case ZFS_DELEG_CREATE: 4262 res = 1; 4263 break; 4264 case ZFS_DELEG_USER_SETS: 4265 case ZFS_DELEG_USER: 4266 res = 2; 4267 break; 4268 case ZFS_DELEG_GROUP_SETS: 4269 case ZFS_DELEG_GROUP: 4270 res = 3; 4271 break; 4272 case ZFS_DELEG_EVERYONE_SETS: 4273 case ZFS_DELEG_EVERYONE: 4274 res = 4; 4275 break; 4276 default: 4277 res = -1; 4278 } 4279 4280 return (res); 4281 } 4282 4283 /* ARGSUSED */ 4284 static int 4285 who_perm_compare(const void *larg, const void *rarg, void *unused) 4286 { 4287 const who_perm_node_t *l = larg; 4288 const who_perm_node_t *r = rarg; 4289 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4290 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4291 int lweight = who_type2weight(ltype); 4292 int rweight = who_type2weight(rtype); 4293 int res = lweight - rweight; 4294 if (res == 0) 4295 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4296 ZFS_MAX_DELEG_NAME-1); 4297 4298 if (res == 0) 4299 return (0); 4300 if (res > 0) 4301 return (1); 4302 else 4303 return (-1); 4304 } 4305 4306 /* ARGSUSED */ 4307 static int 4308 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4309 { 4310 const deleg_perm_node_t *l = larg; 4311 const deleg_perm_node_t *r = rarg; 4312 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4313 ZFS_MAX_DELEG_NAME-1); 4314 4315 if (res == 0) 4316 return (0); 4317 4318 if (res > 0) 4319 return (1); 4320 else 4321 return (-1); 4322 } 4323 4324 static inline void 4325 fs_perm_set_init(fs_perm_set_t *fspset) 4326 { 4327 bzero(fspset, sizeof (fs_perm_set_t)); 4328 4329 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4330 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4331 NULL, UU_DEFAULT)) == NULL) 4332 nomem(); 4333 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4334 UU_DEFAULT)) == NULL) 4335 nomem(); 4336 4337 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4338 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4339 who_perm_node_t, who_avl_node), who_perm_compare, 4340 UU_DEFAULT)) == NULL) 4341 nomem(); 4342 4343 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4344 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4345 who_perm_node_t, who_avl_node), who_perm_compare, 4346 UU_DEFAULT)) == NULL) 4347 nomem(); 4348 4349 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4350 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4351 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4352 == NULL) 4353 nomem(); 4354 } 4355 4356 static inline void fs_perm_fini(fs_perm_t *); 4357 static inline void who_perm_fini(who_perm_t *); 4358 4359 static inline void 4360 fs_perm_set_fini(fs_perm_set_t *fspset) 4361 { 4362 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4363 4364 while (node != NULL) { 4365 fs_perm_node_t *next_node = 4366 uu_list_next(fspset->fsps_list, node); 4367 fs_perm_t *fsperm = &node->fspn_fsperm; 4368 fs_perm_fini(fsperm); 4369 uu_list_remove(fspset->fsps_list, node); 4370 free(node); 4371 node = next_node; 4372 } 4373 4374 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4375 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4376 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4377 } 4378 4379 static inline void 4380 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4381 const char *name) 4382 { 4383 deleg_perm->dp_who_type = type; 4384 deleg_perm->dp_name = name; 4385 } 4386 4387 static inline void 4388 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4389 zfs_deleg_who_type_t type, const char *name) 4390 { 4391 uu_avl_pool_t *pool; 4392 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4393 4394 bzero(who_perm, sizeof (who_perm_t)); 4395 4396 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4397 UU_DEFAULT)) == NULL) 4398 nomem(); 4399 4400 who_perm->who_type = type; 4401 who_perm->who_name = name; 4402 who_perm->who_fsperm = fsperm; 4403 } 4404 4405 static inline void 4406 who_perm_fini(who_perm_t *who_perm) 4407 { 4408 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4409 4410 while (node != NULL) { 4411 deleg_perm_node_t *next_node = 4412 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4413 4414 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4415 free(node); 4416 node = next_node; 4417 } 4418 4419 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4420 } 4421 4422 static inline void 4423 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4424 { 4425 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4426 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4427 4428 bzero(fsperm, sizeof (fs_perm_t)); 4429 4430 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4431 == NULL) 4432 nomem(); 4433 4434 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4435 == NULL) 4436 nomem(); 4437 4438 fsperm->fsp_set = fspset; 4439 fsperm->fsp_name = fsname; 4440 } 4441 4442 static inline void 4443 fs_perm_fini(fs_perm_t *fsperm) 4444 { 4445 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4446 while (node != NULL) { 4447 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4448 node); 4449 who_perm_t *who_perm = &node->who_perm; 4450 who_perm_fini(who_perm); 4451 uu_avl_remove(fsperm->fsp_sc_avl, node); 4452 free(node); 4453 node = next_node; 4454 } 4455 4456 node = uu_avl_first(fsperm->fsp_uge_avl); 4457 while (node != NULL) { 4458 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4459 node); 4460 who_perm_t *who_perm = &node->who_perm; 4461 who_perm_fini(who_perm); 4462 uu_avl_remove(fsperm->fsp_uge_avl, node); 4463 free(node); 4464 node = next_node; 4465 } 4466 4467 uu_avl_destroy(fsperm->fsp_sc_avl); 4468 uu_avl_destroy(fsperm->fsp_uge_avl); 4469 } 4470 4471 static void 4472 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4473 zfs_deleg_who_type_t who_type, const char *name, char locality) 4474 { 4475 uu_avl_index_t idx = 0; 4476 4477 deleg_perm_node_t *found_node = NULL; 4478 deleg_perm_t *deleg_perm = &node->dpn_perm; 4479 4480 deleg_perm_init(deleg_perm, who_type, name); 4481 4482 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4483 == NULL) 4484 uu_avl_insert(avl, node, idx); 4485 else { 4486 node = found_node; 4487 deleg_perm = &node->dpn_perm; 4488 } 4489 4490 4491 switch (locality) { 4492 case ZFS_DELEG_LOCAL: 4493 deleg_perm->dp_local = B_TRUE; 4494 break; 4495 case ZFS_DELEG_DESCENDENT: 4496 deleg_perm->dp_descend = B_TRUE; 4497 break; 4498 case ZFS_DELEG_NA: 4499 break; 4500 default: 4501 assert(B_FALSE); /* invalid locality */ 4502 } 4503 } 4504 4505 static inline int 4506 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4507 { 4508 nvpair_t *nvp = NULL; 4509 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4510 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4511 zfs_deleg_who_type_t who_type = who_perm->who_type; 4512 4513 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4514 const char *name = nvpair_name(nvp); 4515 data_type_t type = nvpair_type(nvp); 4516 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4517 deleg_perm_node_t *node = 4518 safe_malloc(sizeof (deleg_perm_node_t)); 4519 4520 assert(type == DATA_TYPE_BOOLEAN); 4521 4522 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4523 set_deleg_perm_node(avl, node, who_type, name, locality); 4524 } 4525 4526 return (0); 4527 } 4528 4529 static inline int 4530 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4531 { 4532 nvpair_t *nvp = NULL; 4533 fs_perm_set_t *fspset = fsperm->fsp_set; 4534 4535 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4536 nvlist_t *nvl2 = NULL; 4537 const char *name = nvpair_name(nvp); 4538 uu_avl_t *avl = NULL; 4539 uu_avl_pool_t *avl_pool = NULL; 4540 zfs_deleg_who_type_t perm_type = name[0]; 4541 char perm_locality = name[1]; 4542 const char *perm_name = name + 3; 4543 boolean_t is_set = B_TRUE; 4544 who_perm_t *who_perm = NULL; 4545 4546 assert('$' == name[2]); 4547 4548 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4549 return (-1); 4550 4551 switch (perm_type) { 4552 case ZFS_DELEG_CREATE: 4553 case ZFS_DELEG_CREATE_SETS: 4554 case ZFS_DELEG_NAMED_SET: 4555 case ZFS_DELEG_NAMED_SET_SETS: 4556 avl_pool = fspset->fsps_named_set_avl_pool; 4557 avl = fsperm->fsp_sc_avl; 4558 break; 4559 case ZFS_DELEG_USER: 4560 case ZFS_DELEG_USER_SETS: 4561 case ZFS_DELEG_GROUP: 4562 case ZFS_DELEG_GROUP_SETS: 4563 case ZFS_DELEG_EVERYONE: 4564 case ZFS_DELEG_EVERYONE_SETS: 4565 avl_pool = fspset->fsps_who_perm_avl_pool; 4566 avl = fsperm->fsp_uge_avl; 4567 break; 4568 4569 default: 4570 assert(!"unhandled zfs_deleg_who_type_t"); 4571 } 4572 4573 if (is_set) { 4574 who_perm_node_t *found_node = NULL; 4575 who_perm_node_t *node = safe_malloc( 4576 sizeof (who_perm_node_t)); 4577 who_perm = &node->who_perm; 4578 uu_avl_index_t idx = 0; 4579 4580 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4581 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4582 4583 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4584 == NULL) { 4585 if (avl == fsperm->fsp_uge_avl) { 4586 uid_t rid = 0; 4587 struct passwd *p = NULL; 4588 struct group *g = NULL; 4589 const char *nice_name = NULL; 4590 4591 switch (perm_type) { 4592 case ZFS_DELEG_USER_SETS: 4593 case ZFS_DELEG_USER: 4594 rid = atoi(perm_name); 4595 p = getpwuid(rid); 4596 if (p) 4597 nice_name = p->pw_name; 4598 break; 4599 case ZFS_DELEG_GROUP_SETS: 4600 case ZFS_DELEG_GROUP: 4601 rid = atoi(perm_name); 4602 g = getgrgid(rid); 4603 if (g) 4604 nice_name = g->gr_name; 4605 break; 4606 4607 default: 4608 break; 4609 } 4610 4611 if (nice_name != NULL) 4612 (void) strlcpy( 4613 node->who_perm.who_ug_name, 4614 nice_name, 256); 4615 } 4616 4617 uu_avl_insert(avl, node, idx); 4618 } else { 4619 node = found_node; 4620 who_perm = &node->who_perm; 4621 } 4622 } 4623 4624 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4625 } 4626 4627 return (0); 4628 } 4629 4630 static inline int 4631 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4632 { 4633 nvpair_t *nvp = NULL; 4634 uu_avl_index_t idx = 0; 4635 4636 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4637 nvlist_t *nvl2 = NULL; 4638 const char *fsname = nvpair_name(nvp); 4639 data_type_t type = nvpair_type(nvp); 4640 fs_perm_t *fsperm = NULL; 4641 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4642 if (node == NULL) 4643 nomem(); 4644 4645 fsperm = &node->fspn_fsperm; 4646 4647 assert(DATA_TYPE_NVLIST == type); 4648 4649 uu_list_node_init(node, &node->fspn_list_node, 4650 fspset->fsps_list_pool); 4651 4652 idx = uu_list_numnodes(fspset->fsps_list); 4653 fs_perm_init(fsperm, fspset, fsname); 4654 4655 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4656 return (-1); 4657 4658 (void) parse_fs_perm(fsperm, nvl2); 4659 4660 uu_list_insert(fspset->fsps_list, node, idx); 4661 } 4662 4663 return (0); 4664 } 4665 4666 static inline const char * 4667 deleg_perm_comment(zfs_deleg_note_t note) 4668 { 4669 const char *str = ""; 4670 4671 /* subcommands */ 4672 switch (note) { 4673 /* SUBCOMMANDS */ 4674 case ZFS_DELEG_NOTE_ALLOW: 4675 str = gettext("Must also have the permission that is being" 4676 "\n\t\t\t\tallowed"); 4677 break; 4678 case ZFS_DELEG_NOTE_CLONE: 4679 str = gettext("Must also have the 'create' ability and 'mount'" 4680 "\n\t\t\t\tability in the origin file system"); 4681 break; 4682 case ZFS_DELEG_NOTE_CREATE: 4683 str = gettext("Must also have the 'mount' ability"); 4684 break; 4685 case ZFS_DELEG_NOTE_DESTROY: 4686 str = gettext("Must also have the 'mount' ability"); 4687 break; 4688 case ZFS_DELEG_NOTE_DIFF: 4689 str = gettext("Allows lookup of paths within a dataset;" 4690 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4691 "\n\t\t\t\tin order to use zfs diff"); 4692 break; 4693 case ZFS_DELEG_NOTE_HOLD: 4694 str = gettext("Allows adding a user hold to a snapshot"); 4695 break; 4696 case ZFS_DELEG_NOTE_MOUNT: 4697 str = gettext("Allows mount/umount of ZFS datasets"); 4698 break; 4699 case ZFS_DELEG_NOTE_PROMOTE: 4700 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4701 " 'promote' ability in the origin file system"); 4702 break; 4703 case ZFS_DELEG_NOTE_RECEIVE: 4704 str = gettext("Must also have the 'mount' and 'create'" 4705 " ability"); 4706 break; 4707 case ZFS_DELEG_NOTE_RELEASE: 4708 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4709 "might destroy the snapshot"); 4710 break; 4711 case ZFS_DELEG_NOTE_RENAME: 4712 str = gettext("Must also have the 'mount' and 'create'" 4713 "\n\t\t\t\tability in the new parent"); 4714 break; 4715 case ZFS_DELEG_NOTE_ROLLBACK: 4716 str = gettext(""); 4717 break; 4718 case ZFS_DELEG_NOTE_SEND: 4719 str = gettext(""); 4720 break; 4721 case ZFS_DELEG_NOTE_SHARE: 4722 str = gettext("Allows sharing file systems over NFS or SMB" 4723 "\n\t\t\t\tprotocols"); 4724 break; 4725 case ZFS_DELEG_NOTE_SNAPSHOT: 4726 str = gettext(""); 4727 break; 4728 /* 4729 * case ZFS_DELEG_NOTE_VSCAN: 4730 * str = gettext(""); 4731 * break; 4732 */ 4733 /* OTHER */ 4734 case ZFS_DELEG_NOTE_GROUPQUOTA: 4735 str = gettext("Allows accessing any groupquota@... property"); 4736 break; 4737 case ZFS_DELEG_NOTE_GROUPUSED: 4738 str = gettext("Allows reading any groupused@... property"); 4739 break; 4740 case ZFS_DELEG_NOTE_USERPROP: 4741 str = gettext("Allows changing any user property"); 4742 break; 4743 case ZFS_DELEG_NOTE_USERQUOTA: 4744 str = gettext("Allows accessing any userquota@... property"); 4745 break; 4746 case ZFS_DELEG_NOTE_USERUSED: 4747 str = gettext("Allows reading any userused@... property"); 4748 break; 4749 /* other */ 4750 default: 4751 str = ""; 4752 } 4753 4754 return (str); 4755 } 4756 4757 struct allow_opts { 4758 boolean_t local; 4759 boolean_t descend; 4760 boolean_t user; 4761 boolean_t group; 4762 boolean_t everyone; 4763 boolean_t create; 4764 boolean_t set; 4765 boolean_t recursive; /* unallow only */ 4766 boolean_t prt_usage; 4767 4768 boolean_t prt_perms; 4769 char *who; 4770 char *perms; 4771 const char *dataset; 4772 }; 4773 4774 static inline int 4775 prop_cmp(const void *a, const void *b) 4776 { 4777 const char *str1 = *(const char **)a; 4778 const char *str2 = *(const char **)b; 4779 return (strcmp(str1, str2)); 4780 } 4781 4782 static void 4783 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4784 { 4785 const char *opt_desc[] = { 4786 "-h", gettext("show this help message and exit"), 4787 "-l", gettext("set permission locally"), 4788 "-d", gettext("set permission for descents"), 4789 "-u", gettext("set permission for user"), 4790 "-g", gettext("set permission for group"), 4791 "-e", gettext("set permission for everyone"), 4792 "-c", gettext("set create time permission"), 4793 "-s", gettext("define permission set"), 4794 /* unallow only */ 4795 "-r", gettext("remove permissions recursively"), 4796 }; 4797 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4798 size_t allow_size = unallow_size - 2; 4799 const char *props[ZFS_NUM_PROPS]; 4800 int i; 4801 size_t count = 0; 4802 FILE *fp = requested ? stdout : stderr; 4803 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4804 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4805 4806 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4807 HELP_ALLOW)); 4808 (void) fprintf(fp, gettext("Options:\n")); 4809 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4810 const char *opt = opt_desc[i++]; 4811 const char *optdsc = opt_desc[i]; 4812 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4813 } 4814 4815 (void) fprintf(fp, gettext("\nThe following permissions are " 4816 "supported:\n\n")); 4817 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4818 gettext("NOTES")); 4819 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4820 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4821 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4822 const char *perm_type = deleg_perm_type(perm_note); 4823 const char *perm_comment = deleg_perm_comment(perm_note); 4824 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4825 } 4826 4827 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4828 zprop_desc_t *pd = &pdtbl[i]; 4829 if (pd->pd_visible != B_TRUE) 4830 continue; 4831 4832 if (pd->pd_attr == PROP_READONLY) 4833 continue; 4834 4835 props[count++] = pd->pd_name; 4836 } 4837 props[count] = NULL; 4838 4839 qsort(props, count, sizeof (char *), prop_cmp); 4840 4841 for (i = 0; i < count; i++) 4842 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4843 4844 if (msg != NULL) 4845 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4846 4847 exit(requested ? 0 : 2); 4848 } 4849 4850 static inline const char * 4851 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4852 char **permsp) 4853 { 4854 if (un && argc == expected_argc - 1) 4855 *permsp = NULL; 4856 else if (argc == expected_argc) 4857 *permsp = argv[argc - 2]; 4858 else 4859 allow_usage(un, B_FALSE, 4860 gettext("wrong number of parameters\n")); 4861 4862 return (argv[argc - 1]); 4863 } 4864 4865 static void 4866 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4867 { 4868 int uge_sum = opts->user + opts->group + opts->everyone; 4869 int csuge_sum = opts->create + opts->set + uge_sum; 4870 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4871 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4872 4873 if (uge_sum > 1) 4874 allow_usage(un, B_FALSE, 4875 gettext("-u, -g, and -e are mutually exclusive\n")); 4876 4877 if (opts->prt_usage) { 4878 if (argc == 0 && all_sum == 0) 4879 allow_usage(un, B_TRUE, NULL); 4880 else 4881 usage(B_FALSE); 4882 } 4883 4884 if (opts->set) { 4885 if (csuge_sum > 1) 4886 allow_usage(un, B_FALSE, 4887 gettext("invalid options combined with -s\n")); 4888 4889 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4890 if (argv[0][0] != '@') 4891 allow_usage(un, B_FALSE, 4892 gettext("invalid set name: missing '@' prefix\n")); 4893 opts->who = argv[0]; 4894 } else if (opts->create) { 4895 if (ldcsuge_sum > 1) 4896 allow_usage(un, B_FALSE, 4897 gettext("invalid options combined with -c\n")); 4898 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4899 } else if (opts->everyone) { 4900 if (csuge_sum > 1) 4901 allow_usage(un, B_FALSE, 4902 gettext("invalid options combined with -e\n")); 4903 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4904 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4905 == 0) { 4906 opts->everyone = B_TRUE; 4907 argc--; 4908 argv++; 4909 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4910 } else if (argc == 1 && !un) { 4911 opts->prt_perms = B_TRUE; 4912 opts->dataset = argv[argc-1]; 4913 } else { 4914 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4915 opts->who = argv[0]; 4916 } 4917 4918 if (!opts->local && !opts->descend) { 4919 opts->local = B_TRUE; 4920 opts->descend = B_TRUE; 4921 } 4922 } 4923 4924 static void 4925 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4926 const char *who, char *perms, nvlist_t *top_nvl) 4927 { 4928 int i; 4929 char ld[2] = { '\0', '\0' }; 4930 char who_buf[MAXNAMELEN + 32]; 4931 char base_type = '\0'; 4932 char set_type = '\0'; 4933 nvlist_t *base_nvl = NULL; 4934 nvlist_t *set_nvl = NULL; 4935 nvlist_t *nvl; 4936 4937 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4938 nomem(); 4939 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4940 nomem(); 4941 4942 switch (type) { 4943 case ZFS_DELEG_NAMED_SET_SETS: 4944 case ZFS_DELEG_NAMED_SET: 4945 set_type = ZFS_DELEG_NAMED_SET_SETS; 4946 base_type = ZFS_DELEG_NAMED_SET; 4947 ld[0] = ZFS_DELEG_NA; 4948 break; 4949 case ZFS_DELEG_CREATE_SETS: 4950 case ZFS_DELEG_CREATE: 4951 set_type = ZFS_DELEG_CREATE_SETS; 4952 base_type = ZFS_DELEG_CREATE; 4953 ld[0] = ZFS_DELEG_NA; 4954 break; 4955 case ZFS_DELEG_USER_SETS: 4956 case ZFS_DELEG_USER: 4957 set_type = ZFS_DELEG_USER_SETS; 4958 base_type = ZFS_DELEG_USER; 4959 if (local) 4960 ld[0] = ZFS_DELEG_LOCAL; 4961 if (descend) 4962 ld[1] = ZFS_DELEG_DESCENDENT; 4963 break; 4964 case ZFS_DELEG_GROUP_SETS: 4965 case ZFS_DELEG_GROUP: 4966 set_type = ZFS_DELEG_GROUP_SETS; 4967 base_type = ZFS_DELEG_GROUP; 4968 if (local) 4969 ld[0] = ZFS_DELEG_LOCAL; 4970 if (descend) 4971 ld[1] = ZFS_DELEG_DESCENDENT; 4972 break; 4973 case ZFS_DELEG_EVERYONE_SETS: 4974 case ZFS_DELEG_EVERYONE: 4975 set_type = ZFS_DELEG_EVERYONE_SETS; 4976 base_type = ZFS_DELEG_EVERYONE; 4977 if (local) 4978 ld[0] = ZFS_DELEG_LOCAL; 4979 if (descend) 4980 ld[1] = ZFS_DELEG_DESCENDENT; 4981 break; 4982 4983 default: 4984 assert(set_type != '\0' && base_type != '\0'); 4985 } 4986 4987 if (perms != NULL) { 4988 char *curr = perms; 4989 char *end = curr + strlen(perms); 4990 4991 while (curr < end) { 4992 char *delim = strchr(curr, ','); 4993 if (delim == NULL) 4994 delim = end; 4995 else 4996 *delim = '\0'; 4997 4998 if (curr[0] == '@') 4999 nvl = set_nvl; 5000 else 5001 nvl = base_nvl; 5002 5003 (void) nvlist_add_boolean(nvl, curr); 5004 if (delim != end) 5005 *delim = ','; 5006 curr = delim + 1; 5007 } 5008 5009 for (i = 0; i < 2; i++) { 5010 char locality = ld[i]; 5011 if (locality == 0) 5012 continue; 5013 5014 if (!nvlist_empty(base_nvl)) { 5015 if (who != NULL) 5016 (void) snprintf(who_buf, 5017 sizeof (who_buf), "%c%c$%s", 5018 base_type, locality, who); 5019 else 5020 (void) snprintf(who_buf, 5021 sizeof (who_buf), "%c%c$", 5022 base_type, locality); 5023 5024 (void) nvlist_add_nvlist(top_nvl, who_buf, 5025 base_nvl); 5026 } 5027 5028 5029 if (!nvlist_empty(set_nvl)) { 5030 if (who != NULL) 5031 (void) snprintf(who_buf, 5032 sizeof (who_buf), "%c%c$%s", 5033 set_type, locality, who); 5034 else 5035 (void) snprintf(who_buf, 5036 sizeof (who_buf), "%c%c$", 5037 set_type, locality); 5038 5039 (void) nvlist_add_nvlist(top_nvl, who_buf, 5040 set_nvl); 5041 } 5042 } 5043 } else { 5044 for (i = 0; i < 2; i++) { 5045 char locality = ld[i]; 5046 if (locality == 0) 5047 continue; 5048 5049 if (who != NULL) 5050 (void) snprintf(who_buf, sizeof (who_buf), 5051 "%c%c$%s", base_type, locality, who); 5052 else 5053 (void) snprintf(who_buf, sizeof (who_buf), 5054 "%c%c$", base_type, locality); 5055 (void) nvlist_add_boolean(top_nvl, who_buf); 5056 5057 if (who != NULL) 5058 (void) snprintf(who_buf, sizeof (who_buf), 5059 "%c%c$%s", set_type, locality, who); 5060 else 5061 (void) snprintf(who_buf, sizeof (who_buf), 5062 "%c%c$", set_type, locality); 5063 (void) nvlist_add_boolean(top_nvl, who_buf); 5064 } 5065 } 5066 } 5067 5068 static int 5069 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5070 { 5071 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5072 nomem(); 5073 5074 if (opts->set) { 5075 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5076 opts->descend, opts->who, opts->perms, *nvlp); 5077 } else if (opts->create) { 5078 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5079 opts->descend, NULL, opts->perms, *nvlp); 5080 } else if (opts->everyone) { 5081 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5082 opts->descend, NULL, opts->perms, *nvlp); 5083 } else { 5084 char *curr = opts->who; 5085 char *end = curr + strlen(curr); 5086 5087 while (curr < end) { 5088 const char *who; 5089 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5090 char *endch; 5091 char *delim = strchr(curr, ','); 5092 char errbuf[256]; 5093 char id[64]; 5094 struct passwd *p = NULL; 5095 struct group *g = NULL; 5096 5097 uid_t rid; 5098 if (delim == NULL) 5099 delim = end; 5100 else 5101 *delim = '\0'; 5102 5103 rid = (uid_t)strtol(curr, &endch, 0); 5104 if (opts->user) { 5105 who_type = ZFS_DELEG_USER; 5106 if (*endch != '\0') 5107 p = getpwnam(curr); 5108 else 5109 p = getpwuid(rid); 5110 5111 if (p != NULL) 5112 rid = p->pw_uid; 5113 else { 5114 (void) snprintf(errbuf, 256, gettext( 5115 "invalid user %s"), curr); 5116 allow_usage(un, B_TRUE, errbuf); 5117 } 5118 } else if (opts->group) { 5119 who_type = ZFS_DELEG_GROUP; 5120 if (*endch != '\0') 5121 g = getgrnam(curr); 5122 else 5123 g = getgrgid(rid); 5124 5125 if (g != NULL) 5126 rid = g->gr_gid; 5127 else { 5128 (void) snprintf(errbuf, 256, gettext( 5129 "invalid group %s"), curr); 5130 allow_usage(un, B_TRUE, errbuf); 5131 } 5132 } else { 5133 if (*endch != '\0') { 5134 p = getpwnam(curr); 5135 } else { 5136 p = getpwuid(rid); 5137 } 5138 5139 if (p == NULL) { 5140 if (*endch != '\0') { 5141 g = getgrnam(curr); 5142 } else { 5143 g = getgrgid(rid); 5144 } 5145 } 5146 5147 if (p != NULL) { 5148 who_type = ZFS_DELEG_USER; 5149 rid = p->pw_uid; 5150 } else if (g != NULL) { 5151 who_type = ZFS_DELEG_GROUP; 5152 rid = g->gr_gid; 5153 } else { 5154 (void) snprintf(errbuf, 256, gettext( 5155 "invalid user/group %s"), curr); 5156 allow_usage(un, B_TRUE, errbuf); 5157 } 5158 } 5159 5160 (void) sprintf(id, "%u", rid); 5161 who = id; 5162 5163 store_allow_perm(who_type, opts->local, 5164 opts->descend, who, opts->perms, *nvlp); 5165 curr = delim + 1; 5166 } 5167 } 5168 5169 return (0); 5170 } 5171 5172 static void 5173 print_set_creat_perms(uu_avl_t *who_avl) 5174 { 5175 const char *sc_title[] = { 5176 gettext("Permission sets:\n"), 5177 gettext("Create time permissions:\n"), 5178 NULL 5179 }; 5180 const char **title_ptr = sc_title; 5181 who_perm_node_t *who_node = NULL; 5182 int prev_weight = -1; 5183 5184 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5185 who_node = uu_avl_next(who_avl, who_node)) { 5186 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5187 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5188 const char *who_name = who_node->who_perm.who_name; 5189 int weight = who_type2weight(who_type); 5190 boolean_t first = B_TRUE; 5191 deleg_perm_node_t *deleg_node; 5192 5193 if (prev_weight != weight) { 5194 (void) printf(*title_ptr++); 5195 prev_weight = weight; 5196 } 5197 5198 if (who_name == NULL || strnlen(who_name, 1) == 0) 5199 (void) printf("\t"); 5200 else 5201 (void) printf("\t%s ", who_name); 5202 5203 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5204 deleg_node = uu_avl_next(avl, deleg_node)) { 5205 if (first) { 5206 (void) printf("%s", 5207 deleg_node->dpn_perm.dp_name); 5208 first = B_FALSE; 5209 } else 5210 (void) printf(",%s", 5211 deleg_node->dpn_perm.dp_name); 5212 } 5213 5214 (void) printf("\n"); 5215 } 5216 } 5217 5218 static void 5219 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5220 const char *title) 5221 { 5222 who_perm_node_t *who_node = NULL; 5223 boolean_t prt_title = B_TRUE; 5224 uu_avl_walk_t *walk; 5225 5226 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5227 nomem(); 5228 5229 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5230 const char *who_name = who_node->who_perm.who_name; 5231 const char *nice_who_name = who_node->who_perm.who_ug_name; 5232 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5233 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5234 char delim = ' '; 5235 deleg_perm_node_t *deleg_node; 5236 boolean_t prt_who = B_TRUE; 5237 5238 for (deleg_node = uu_avl_first(avl); 5239 deleg_node != NULL; 5240 deleg_node = uu_avl_next(avl, deleg_node)) { 5241 if (local != deleg_node->dpn_perm.dp_local || 5242 descend != deleg_node->dpn_perm.dp_descend) 5243 continue; 5244 5245 if (prt_who) { 5246 const char *who = NULL; 5247 if (prt_title) { 5248 prt_title = B_FALSE; 5249 (void) printf(title); 5250 } 5251 5252 switch (who_type) { 5253 case ZFS_DELEG_USER_SETS: 5254 case ZFS_DELEG_USER: 5255 who = gettext("user"); 5256 if (nice_who_name) 5257 who_name = nice_who_name; 5258 break; 5259 case ZFS_DELEG_GROUP_SETS: 5260 case ZFS_DELEG_GROUP: 5261 who = gettext("group"); 5262 if (nice_who_name) 5263 who_name = nice_who_name; 5264 break; 5265 case ZFS_DELEG_EVERYONE_SETS: 5266 case ZFS_DELEG_EVERYONE: 5267 who = gettext("everyone"); 5268 who_name = NULL; 5269 break; 5270 5271 default: 5272 assert(who != NULL); 5273 } 5274 5275 prt_who = B_FALSE; 5276 if (who_name == NULL) 5277 (void) printf("\t%s", who); 5278 else 5279 (void) printf("\t%s %s", who, who_name); 5280 } 5281 5282 (void) printf("%c%s", delim, 5283 deleg_node->dpn_perm.dp_name); 5284 delim = ','; 5285 } 5286 5287 if (!prt_who) 5288 (void) printf("\n"); 5289 } 5290 5291 uu_avl_walk_end(walk); 5292 } 5293 5294 static void 5295 print_fs_perms(fs_perm_set_t *fspset) 5296 { 5297 fs_perm_node_t *node = NULL; 5298 char buf[MAXNAMELEN + 32]; 5299 const char *dsname = buf; 5300 5301 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5302 node = uu_list_next(fspset->fsps_list, node)) { 5303 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5304 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5305 int left = 0; 5306 5307 (void) snprintf(buf, sizeof (buf), 5308 gettext("---- Permissions on %s "), 5309 node->fspn_fsperm.fsp_name); 5310 (void) printf(dsname); 5311 left = 70 - strlen(buf); 5312 while (left-- > 0) 5313 (void) printf("-"); 5314 (void) printf("\n"); 5315 5316 print_set_creat_perms(sc_avl); 5317 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5318 gettext("Local permissions:\n")); 5319 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5320 gettext("Descendent permissions:\n")); 5321 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5322 gettext("Local+Descendent permissions:\n")); 5323 } 5324 } 5325 5326 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5327 5328 struct deleg_perms { 5329 boolean_t un; 5330 nvlist_t *nvl; 5331 }; 5332 5333 static int 5334 set_deleg_perms(zfs_handle_t *zhp, void *data) 5335 { 5336 struct deleg_perms *perms = (struct deleg_perms *)data; 5337 zfs_type_t zfs_type = zfs_get_type(zhp); 5338 5339 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5340 return (0); 5341 5342 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5343 } 5344 5345 static int 5346 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5347 { 5348 zfs_handle_t *zhp; 5349 nvlist_t *perm_nvl = NULL; 5350 nvlist_t *update_perm_nvl = NULL; 5351 int error = 1; 5352 int c; 5353 struct allow_opts opts = { 0 }; 5354 5355 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5356 5357 /* check opts */ 5358 while ((c = getopt(argc, argv, optstr)) != -1) { 5359 switch (c) { 5360 case 'l': 5361 opts.local = B_TRUE; 5362 break; 5363 case 'd': 5364 opts.descend = B_TRUE; 5365 break; 5366 case 'u': 5367 opts.user = B_TRUE; 5368 break; 5369 case 'g': 5370 opts.group = B_TRUE; 5371 break; 5372 case 'e': 5373 opts.everyone = B_TRUE; 5374 break; 5375 case 's': 5376 opts.set = B_TRUE; 5377 break; 5378 case 'c': 5379 opts.create = B_TRUE; 5380 break; 5381 case 'r': 5382 opts.recursive = B_TRUE; 5383 break; 5384 case ':': 5385 (void) fprintf(stderr, gettext("missing argument for " 5386 "'%c' option\n"), optopt); 5387 usage(B_FALSE); 5388 break; 5389 case 'h': 5390 opts.prt_usage = B_TRUE; 5391 break; 5392 case '?': 5393 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5394 optopt); 5395 usage(B_FALSE); 5396 } 5397 } 5398 5399 argc -= optind; 5400 argv += optind; 5401 5402 /* check arguments */ 5403 parse_allow_args(argc, argv, un, &opts); 5404 5405 /* try to open the dataset */ 5406 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5407 ZFS_TYPE_VOLUME)) == NULL) { 5408 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5409 opts.dataset); 5410 return (-1); 5411 } 5412 5413 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5414 goto cleanup2; 5415 5416 fs_perm_set_init(&fs_perm_set); 5417 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5418 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5419 goto cleanup1; 5420 } 5421 5422 if (opts.prt_perms) 5423 print_fs_perms(&fs_perm_set); 5424 else { 5425 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5426 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5427 goto cleanup0; 5428 5429 if (un && opts.recursive) { 5430 struct deleg_perms data = { un, update_perm_nvl }; 5431 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5432 &data) != 0) 5433 goto cleanup0; 5434 } 5435 } 5436 5437 error = 0; 5438 5439 cleanup0: 5440 nvlist_free(perm_nvl); 5441 nvlist_free(update_perm_nvl); 5442 cleanup1: 5443 fs_perm_set_fini(&fs_perm_set); 5444 cleanup2: 5445 zfs_close(zhp); 5446 5447 return (error); 5448 } 5449 5450 static int 5451 zfs_do_allow(int argc, char **argv) 5452 { 5453 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5454 } 5455 5456 static int 5457 zfs_do_unallow(int argc, char **argv) 5458 { 5459 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5460 } 5461 5462 static int 5463 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5464 { 5465 int errors = 0; 5466 int i; 5467 const char *tag; 5468 boolean_t recursive = B_FALSE; 5469 const char *opts = holding ? "rt" : "r"; 5470 int c; 5471 5472 /* check options */ 5473 while ((c = getopt(argc, argv, opts)) != -1) { 5474 switch (c) { 5475 case 'r': 5476 recursive = B_TRUE; 5477 break; 5478 case '?': 5479 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5480 optopt); 5481 usage(B_FALSE); 5482 } 5483 } 5484 5485 argc -= optind; 5486 argv += optind; 5487 5488 /* check number of arguments */ 5489 if (argc < 2) 5490 usage(B_FALSE); 5491 5492 tag = argv[0]; 5493 --argc; 5494 ++argv; 5495 5496 if (holding && tag[0] == '.') { 5497 /* tags starting with '.' are reserved for libzfs */ 5498 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5499 usage(B_FALSE); 5500 } 5501 5502 for (i = 0; i < argc; ++i) { 5503 zfs_handle_t *zhp; 5504 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5505 const char *delim; 5506 char *path = argv[i]; 5507 5508 delim = strchr(path, '@'); 5509 if (delim == NULL) { 5510 (void) fprintf(stderr, 5511 gettext("'%s' is not a snapshot\n"), path); 5512 ++errors; 5513 continue; 5514 } 5515 (void) strncpy(parent, path, delim - path); 5516 parent[delim - path] = '\0'; 5517 5518 zhp = zfs_open(g_zfs, parent, 5519 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5520 if (zhp == NULL) { 5521 ++errors; 5522 continue; 5523 } 5524 if (holding) { 5525 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5526 ++errors; 5527 } else { 5528 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5529 ++errors; 5530 } 5531 zfs_close(zhp); 5532 } 5533 5534 return (errors != 0); 5535 } 5536 5537 /* 5538 * zfs hold [-r] [-t] <tag> <snap> ... 5539 * 5540 * -r Recursively hold 5541 * 5542 * Apply a user-hold with the given tag to the list of snapshots. 5543 */ 5544 static int 5545 zfs_do_hold(int argc, char **argv) 5546 { 5547 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5548 } 5549 5550 /* 5551 * zfs release [-r] <tag> <snap> ... 5552 * 5553 * -r Recursively release 5554 * 5555 * Release a user-hold with the given tag from the list of snapshots. 5556 */ 5557 static int 5558 zfs_do_release(int argc, char **argv) 5559 { 5560 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5561 } 5562 5563 typedef struct holds_cbdata { 5564 boolean_t cb_recursive; 5565 const char *cb_snapname; 5566 nvlist_t **cb_nvlp; 5567 size_t cb_max_namelen; 5568 size_t cb_max_taglen; 5569 } holds_cbdata_t; 5570 5571 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5572 #define DATETIME_BUF_LEN (32) 5573 /* 5574 * 5575 */ 5576 static void 5577 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5578 { 5579 int i; 5580 nvpair_t *nvp = NULL; 5581 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5582 const char *col; 5583 5584 if (!scripted) { 5585 for (i = 0; i < 3; i++) { 5586 col = gettext(hdr_cols[i]); 5587 if (i < 2) 5588 (void) printf("%-*s ", i ? tagwidth : nwidth, 5589 col); 5590 else 5591 (void) printf("%s\n", col); 5592 } 5593 } 5594 5595 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5596 char *zname = nvpair_name(nvp); 5597 nvlist_t *nvl2; 5598 nvpair_t *nvp2 = NULL; 5599 (void) nvpair_value_nvlist(nvp, &nvl2); 5600 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5601 char tsbuf[DATETIME_BUF_LEN]; 5602 char *tagname = nvpair_name(nvp2); 5603 uint64_t val = 0; 5604 time_t time; 5605 struct tm t; 5606 5607 (void) nvpair_value_uint64(nvp2, &val); 5608 time = (time_t)val; 5609 (void) localtime_r(&time, &t); 5610 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5611 gettext(STRFTIME_FMT_STR), &t); 5612 5613 if (scripted) { 5614 (void) printf("%s\t%s\t%s\n", zname, 5615 tagname, tsbuf); 5616 } else { 5617 (void) printf("%-*s %-*s %s\n", nwidth, 5618 zname, tagwidth, tagname, tsbuf); 5619 } 5620 } 5621 } 5622 } 5623 5624 /* 5625 * Generic callback function to list a dataset or snapshot. 5626 */ 5627 static int 5628 holds_callback(zfs_handle_t *zhp, void *data) 5629 { 5630 holds_cbdata_t *cbp = data; 5631 nvlist_t *top_nvl = *cbp->cb_nvlp; 5632 nvlist_t *nvl = NULL; 5633 nvpair_t *nvp = NULL; 5634 const char *zname = zfs_get_name(zhp); 5635 size_t znamelen = strlen(zname); 5636 5637 if (cbp->cb_recursive) { 5638 const char *snapname; 5639 char *delim = strchr(zname, '@'); 5640 if (delim == NULL) 5641 return (0); 5642 5643 snapname = delim + 1; 5644 if (strcmp(cbp->cb_snapname, snapname)) 5645 return (0); 5646 } 5647 5648 if (zfs_get_holds(zhp, &nvl) != 0) 5649 return (-1); 5650 5651 if (znamelen > cbp->cb_max_namelen) 5652 cbp->cb_max_namelen = znamelen; 5653 5654 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5655 const char *tag = nvpair_name(nvp); 5656 size_t taglen = strlen(tag); 5657 if (taglen > cbp->cb_max_taglen) 5658 cbp->cb_max_taglen = taglen; 5659 } 5660 5661 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5662 } 5663 5664 /* 5665 * zfs holds [-r] <snap> ... 5666 * 5667 * -r Recursively hold 5668 */ 5669 static int 5670 zfs_do_holds(int argc, char **argv) 5671 { 5672 int errors = 0; 5673 int c; 5674 int i; 5675 boolean_t scripted = B_FALSE; 5676 boolean_t recursive = B_FALSE; 5677 const char *opts = "rH"; 5678 nvlist_t *nvl; 5679 5680 int types = ZFS_TYPE_SNAPSHOT; 5681 holds_cbdata_t cb = { 0 }; 5682 5683 int limit = 0; 5684 int ret = 0; 5685 int flags = 0; 5686 5687 /* check options */ 5688 while ((c = getopt(argc, argv, opts)) != -1) { 5689 switch (c) { 5690 case 'r': 5691 recursive = B_TRUE; 5692 break; 5693 case 'H': 5694 scripted = B_TRUE; 5695 break; 5696 case '?': 5697 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5698 optopt); 5699 usage(B_FALSE); 5700 } 5701 } 5702 5703 if (recursive) { 5704 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5705 flags |= ZFS_ITER_RECURSE; 5706 } 5707 5708 argc -= optind; 5709 argv += optind; 5710 5711 /* check number of arguments */ 5712 if (argc < 1) 5713 usage(B_FALSE); 5714 5715 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5716 nomem(); 5717 5718 for (i = 0; i < argc; ++i) { 5719 char *snapshot = argv[i]; 5720 const char *delim; 5721 const char *snapname; 5722 5723 delim = strchr(snapshot, '@'); 5724 if (delim == NULL) { 5725 (void) fprintf(stderr, 5726 gettext("'%s' is not a snapshot\n"), snapshot); 5727 ++errors; 5728 continue; 5729 } 5730 snapname = delim + 1; 5731 if (recursive) 5732 snapshot[delim - snapshot] = '\0'; 5733 5734 cb.cb_recursive = recursive; 5735 cb.cb_snapname = snapname; 5736 cb.cb_nvlp = &nvl; 5737 5738 /* 5739 * 1. collect holds data, set format options 5740 */ 5741 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5742 holds_callback, &cb); 5743 if (ret != 0) 5744 ++errors; 5745 } 5746 5747 /* 5748 * 2. print holds data 5749 */ 5750 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5751 5752 if (nvlist_empty(nvl)) 5753 (void) printf(gettext("no datasets available\n")); 5754 5755 nvlist_free(nvl); 5756 5757 return (0 != errors); 5758 } 5759 5760 #define CHECK_SPINNER 30 5761 #define SPINNER_TIME 3 /* seconds */ 5762 #define MOUNT_TIME 5 /* seconds */ 5763 5764 static int 5765 get_one_dataset(zfs_handle_t *zhp, void *data) 5766 { 5767 static char *spin[] = { "-", "\\", "|", "/" }; 5768 static int spinval = 0; 5769 static int spincheck = 0; 5770 static time_t last_spin_time = (time_t)0; 5771 get_all_cb_t *cbp = data; 5772 zfs_type_t type = zfs_get_type(zhp); 5773 5774 if (cbp->cb_verbose) { 5775 if (--spincheck < 0) { 5776 time_t now = time(NULL); 5777 if (last_spin_time + SPINNER_TIME < now) { 5778 update_progress(spin[spinval++ % 4]); 5779 last_spin_time = now; 5780 } 5781 spincheck = CHECK_SPINNER; 5782 } 5783 } 5784 5785 /* 5786 * Interate over any nested datasets. 5787 */ 5788 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5789 zfs_close(zhp); 5790 return (1); 5791 } 5792 5793 /* 5794 * Skip any datasets whose type does not match. 5795 */ 5796 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5797 zfs_close(zhp); 5798 return (0); 5799 } 5800 libzfs_add_handle(cbp, zhp); 5801 assert(cbp->cb_used <= cbp->cb_alloc); 5802 5803 return (0); 5804 } 5805 5806 static void 5807 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5808 { 5809 get_all_cb_t cb = { 0 }; 5810 cb.cb_verbose = verbose; 5811 cb.cb_getone = get_one_dataset; 5812 5813 if (verbose) 5814 set_progress_header(gettext("Reading ZFS config")); 5815 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5816 5817 *dslist = cb.cb_handles; 5818 *count = cb.cb_used; 5819 5820 if (verbose) 5821 finish_progress(gettext("done.")); 5822 } 5823 5824 /* 5825 * Generic callback for sharing or mounting filesystems. Because the code is so 5826 * similar, we have a common function with an extra parameter to determine which 5827 * mode we are using. 5828 */ 5829 #define OP_SHARE 0x1 5830 #define OP_MOUNT 0x2 5831 5832 /* 5833 * Share or mount a dataset. 5834 */ 5835 static int 5836 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5837 boolean_t explicit, const char *options) 5838 { 5839 char mountpoint[ZFS_MAXPROPLEN]; 5840 char shareopts[ZFS_MAXPROPLEN]; 5841 char smbshareopts[ZFS_MAXPROPLEN]; 5842 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5843 struct mnttab mnt; 5844 uint64_t zoned, canmount; 5845 boolean_t shared_nfs, shared_smb; 5846 5847 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5848 5849 /* 5850 * Check to make sure we can mount/share this dataset. If we 5851 * are in the global zone and the filesystem is exported to a 5852 * local zone, or if we are in a local zone and the 5853 * filesystem is not exported, then it is an error. 5854 */ 5855 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5856 5857 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5858 if (!explicit) 5859 return (0); 5860 5861 (void) fprintf(stderr, gettext("cannot %s '%s': " 5862 "dataset is exported to a local zone\n"), cmdname, 5863 zfs_get_name(zhp)); 5864 return (1); 5865 5866 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5867 if (!explicit) 5868 return (0); 5869 5870 (void) fprintf(stderr, gettext("cannot %s '%s': " 5871 "permission denied\n"), cmdname, 5872 zfs_get_name(zhp)); 5873 return (1); 5874 } 5875 5876 /* 5877 * Ignore any filesystems which don't apply to us. This 5878 * includes those with a legacy mountpoint, or those with 5879 * legacy share options. 5880 */ 5881 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5882 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5883 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5884 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5885 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5886 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5887 5888 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5889 strcmp(smbshareopts, "off") == 0) { 5890 if (!explicit) 5891 return (0); 5892 5893 (void) fprintf(stderr, gettext("cannot share '%s': " 5894 "legacy share\n"), zfs_get_name(zhp)); 5895 (void) fprintf(stderr, gettext("use share(1M) to " 5896 "share this filesystem, or set " 5897 "sharenfs property on\n")); 5898 return (1); 5899 } 5900 5901 /* 5902 * We cannot share or mount legacy filesystems. If the 5903 * shareopts is non-legacy but the mountpoint is legacy, we 5904 * treat it as a legacy share. 5905 */ 5906 if (strcmp(mountpoint, "legacy") == 0) { 5907 if (!explicit) 5908 return (0); 5909 5910 (void) fprintf(stderr, gettext("cannot %s '%s': " 5911 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5912 (void) fprintf(stderr, gettext("use %s(1M) to " 5913 "%s this filesystem\n"), cmdname, cmdname); 5914 return (1); 5915 } 5916 5917 if (strcmp(mountpoint, "none") == 0) { 5918 if (!explicit) 5919 return (0); 5920 5921 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5922 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5923 return (1); 5924 } 5925 5926 /* 5927 * canmount explicit outcome 5928 * on no pass through 5929 * on yes pass through 5930 * off no return 0 5931 * off yes display error, return 1 5932 * noauto no return 0 5933 * noauto yes pass through 5934 */ 5935 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5936 if (canmount == ZFS_CANMOUNT_OFF) { 5937 if (!explicit) 5938 return (0); 5939 5940 (void) fprintf(stderr, gettext("cannot %s '%s': " 5941 "'canmount' property is set to 'off'\n"), cmdname, 5942 zfs_get_name(zhp)); 5943 return (1); 5944 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5945 return (0); 5946 } 5947 5948 /* 5949 * If this filesystem is inconsistent and has a receive resume 5950 * token, we can not mount it. 5951 */ 5952 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5953 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5954 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5955 if (!explicit) 5956 return (0); 5957 5958 (void) fprintf(stderr, gettext("cannot %s '%s': " 5959 "Contains partially-completed state from " 5960 "\"zfs receive -r\", which can be resumed with " 5961 "\"zfs send -t\"\n"), 5962 cmdname, zfs_get_name(zhp)); 5963 return (1); 5964 } 5965 5966 /* 5967 * At this point, we have verified that the mountpoint and/or 5968 * shareopts are appropriate for auto management. If the 5969 * filesystem is already mounted or shared, return (failing 5970 * for explicit requests); otherwise mount or share the 5971 * filesystem. 5972 */ 5973 switch (op) { 5974 case OP_SHARE: 5975 5976 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5977 shared_smb = zfs_is_shared_smb(zhp, NULL); 5978 5979 if ((shared_nfs && shared_smb) || 5980 (shared_nfs && strcmp(shareopts, "on") == 0 && 5981 strcmp(smbshareopts, "off") == 0) || 5982 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5983 strcmp(shareopts, "off") == 0)) { 5984 if (!explicit) 5985 return (0); 5986 5987 (void) fprintf(stderr, gettext("cannot share " 5988 "'%s': filesystem already shared\n"), 5989 zfs_get_name(zhp)); 5990 return (1); 5991 } 5992 5993 if (!zfs_is_mounted(zhp, NULL) && 5994 zfs_mount(zhp, NULL, 0) != 0) 5995 return (1); 5996 5997 if (protocol == NULL) { 5998 if (zfs_shareall(zhp) != 0) 5999 return (1); 6000 } else if (strcmp(protocol, "nfs") == 0) { 6001 if (zfs_share_nfs(zhp)) 6002 return (1); 6003 } else if (strcmp(protocol, "smb") == 0) { 6004 if (zfs_share_smb(zhp)) 6005 return (1); 6006 } else { 6007 (void) fprintf(stderr, gettext("cannot share " 6008 "'%s': invalid share type '%s' " 6009 "specified\n"), 6010 zfs_get_name(zhp), protocol); 6011 return (1); 6012 } 6013 6014 break; 6015 6016 case OP_MOUNT: 6017 if (options == NULL) 6018 mnt.mnt_mntopts = ""; 6019 else 6020 mnt.mnt_mntopts = (char *)options; 6021 6022 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6023 zfs_is_mounted(zhp, NULL)) { 6024 if (!explicit) 6025 return (0); 6026 6027 (void) fprintf(stderr, gettext("cannot mount " 6028 "'%s': filesystem already mounted\n"), 6029 zfs_get_name(zhp)); 6030 return (1); 6031 } 6032 6033 if (zfs_mount(zhp, options, flags) != 0) 6034 return (1); 6035 break; 6036 } 6037 6038 return (0); 6039 } 6040 6041 /* 6042 * Reports progress in the form "(current/total)". Not thread-safe. 6043 */ 6044 static void 6045 report_mount_progress(int current, int total) 6046 { 6047 static time_t last_progress_time = 0; 6048 time_t now = time(NULL); 6049 char info[32]; 6050 6051 /* report 1..n instead of 0..n-1 */ 6052 ++current; 6053 6054 /* display header if we're here for the first time */ 6055 if (current == 1) { 6056 set_progress_header(gettext("Mounting ZFS filesystems")); 6057 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6058 /* too soon to report again */ 6059 return; 6060 } 6061 6062 last_progress_time = now; 6063 6064 (void) sprintf(info, "(%d/%d)", current, total); 6065 6066 if (current == total) 6067 finish_progress(info); 6068 else 6069 update_progress(info); 6070 } 6071 6072 static void 6073 append_options(char *mntopts, char *newopts) 6074 { 6075 int len = strlen(mntopts); 6076 6077 /* original length plus new string to append plus 1 for the comma */ 6078 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6079 (void) fprintf(stderr, gettext("the opts argument for " 6080 "'%c' option is too long (more than %d chars)\n"), 6081 "-o", MNT_LINE_MAX); 6082 usage(B_FALSE); 6083 } 6084 6085 if (*mntopts) 6086 mntopts[len++] = ','; 6087 6088 (void) strcpy(&mntopts[len], newopts); 6089 } 6090 6091 static int 6092 share_mount(int op, int argc, char **argv) 6093 { 6094 int do_all = 0; 6095 boolean_t verbose = B_FALSE; 6096 int c, ret = 0; 6097 char *options = NULL; 6098 int flags = 0; 6099 6100 /* check options */ 6101 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6102 != -1) { 6103 switch (c) { 6104 case 'a': 6105 do_all = 1; 6106 break; 6107 case 'v': 6108 verbose = B_TRUE; 6109 break; 6110 case 'o': 6111 if (*optarg == '\0') { 6112 (void) fprintf(stderr, gettext("empty mount " 6113 "options (-o) specified\n")); 6114 usage(B_FALSE); 6115 } 6116 6117 if (options == NULL) 6118 options = safe_malloc(MNT_LINE_MAX + 1); 6119 6120 /* option validation is done later */ 6121 append_options(options, optarg); 6122 break; 6123 6124 case 'O': 6125 flags |= MS_OVERLAY; 6126 break; 6127 case ':': 6128 (void) fprintf(stderr, gettext("missing argument for " 6129 "'%c' option\n"), optopt); 6130 usage(B_FALSE); 6131 break; 6132 case '?': 6133 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6134 optopt); 6135 usage(B_FALSE); 6136 } 6137 } 6138 6139 argc -= optind; 6140 argv += optind; 6141 6142 /* check number of arguments */ 6143 if (do_all) { 6144 zfs_handle_t **dslist = NULL; 6145 size_t i, count = 0; 6146 char *protocol = NULL; 6147 6148 if (op == OP_SHARE && argc > 0) { 6149 if (strcmp(argv[0], "nfs") != 0 && 6150 strcmp(argv[0], "smb") != 0) { 6151 (void) fprintf(stderr, gettext("share type " 6152 "must be 'nfs' or 'smb'\n")); 6153 usage(B_FALSE); 6154 } 6155 protocol = argv[0]; 6156 argc--; 6157 argv++; 6158 } 6159 6160 if (argc != 0) { 6161 (void) fprintf(stderr, gettext("too many arguments\n")); 6162 usage(B_FALSE); 6163 } 6164 6165 start_progress_timer(); 6166 get_all_datasets(&dslist, &count, verbose); 6167 6168 if (count == 0) 6169 return (0); 6170 6171 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6172 sa_init_selective_arg_t sharearg; 6173 sharearg.zhandle_arr = dslist; 6174 sharearg.zhandle_len = count; 6175 if ((ret = zfs_init_libshare_arg(zfs_get_handle(dslist[0]), 6176 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6177 (void) fprintf(stderr, 6178 gettext("Could not initialize libshare, %d"), ret); 6179 return (ret); 6180 } 6181 6182 for (i = 0; i < count; i++) { 6183 if (verbose) 6184 report_mount_progress(i, count); 6185 6186 if (share_mount_one(dslist[i], op, flags, protocol, 6187 B_FALSE, options) != 0) 6188 ret = 1; 6189 zfs_close(dslist[i]); 6190 } 6191 6192 free(dslist); 6193 } else if (argc == 0) { 6194 struct mnttab entry; 6195 6196 if ((op == OP_SHARE) || (options != NULL)) { 6197 (void) fprintf(stderr, gettext("missing filesystem " 6198 "argument (specify -a for all)\n")); 6199 usage(B_FALSE); 6200 } 6201 6202 /* 6203 * When mount is given no arguments, go through /etc/mnttab and 6204 * display any active ZFS mounts. We hide any snapshots, since 6205 * they are controlled automatically. 6206 */ 6207 rewind(mnttab_file); 6208 while (getmntent(mnttab_file, &entry) == 0) { 6209 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6210 strchr(entry.mnt_special, '@') != NULL) 6211 continue; 6212 6213 (void) printf("%-30s %s\n", entry.mnt_special, 6214 entry.mnt_mountp); 6215 } 6216 6217 } else { 6218 zfs_handle_t *zhp; 6219 6220 if (argc > 1) { 6221 (void) fprintf(stderr, 6222 gettext("too many arguments\n")); 6223 usage(B_FALSE); 6224 } 6225 6226 if ((zhp = zfs_open(g_zfs, argv[0], 6227 ZFS_TYPE_FILESYSTEM)) == NULL) { 6228 ret = 1; 6229 } else { 6230 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6231 options); 6232 zfs_close(zhp); 6233 } 6234 } 6235 6236 return (ret); 6237 } 6238 6239 /* 6240 * zfs mount -a [nfs] 6241 * zfs mount filesystem 6242 * 6243 * Mount all filesystems, or mount the given filesystem. 6244 */ 6245 static int 6246 zfs_do_mount(int argc, char **argv) 6247 { 6248 return (share_mount(OP_MOUNT, argc, argv)); 6249 } 6250 6251 /* 6252 * zfs share -a [nfs | smb] 6253 * zfs share filesystem 6254 * 6255 * Share all filesystems, or share the given filesystem. 6256 */ 6257 static int 6258 zfs_do_share(int argc, char **argv) 6259 { 6260 return (share_mount(OP_SHARE, argc, argv)); 6261 } 6262 6263 typedef struct unshare_unmount_node { 6264 zfs_handle_t *un_zhp; 6265 char *un_mountp; 6266 uu_avl_node_t un_avlnode; 6267 } unshare_unmount_node_t; 6268 6269 /* ARGSUSED */ 6270 static int 6271 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6272 { 6273 const unshare_unmount_node_t *l = larg; 6274 const unshare_unmount_node_t *r = rarg; 6275 6276 return (strcmp(l->un_mountp, r->un_mountp)); 6277 } 6278 6279 /* 6280 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6281 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6282 * and unmount it appropriately. 6283 */ 6284 static int 6285 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6286 { 6287 zfs_handle_t *zhp; 6288 int ret = 0; 6289 struct stat64 statbuf; 6290 struct extmnttab entry; 6291 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6292 ino_t path_inode; 6293 6294 /* 6295 * Search for the path in /etc/mnttab. Rather than looking for the 6296 * specific path, which can be fooled by non-standard paths (i.e. ".." 6297 * or "//"), we stat() the path and search for the corresponding 6298 * (major,minor) device pair. 6299 */ 6300 if (stat64(path, &statbuf) != 0) { 6301 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6302 cmdname, path, strerror(errno)); 6303 return (1); 6304 } 6305 path_inode = statbuf.st_ino; 6306 6307 /* 6308 * Search for the given (major,minor) pair in the mount table. 6309 */ 6310 rewind(mnttab_file); 6311 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6312 if (entry.mnt_major == major(statbuf.st_dev) && 6313 entry.mnt_minor == minor(statbuf.st_dev)) 6314 break; 6315 } 6316 if (ret != 0) { 6317 if (op == OP_SHARE) { 6318 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6319 "currently mounted\n"), cmdname, path); 6320 return (1); 6321 } 6322 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6323 path); 6324 if ((ret = umount2(path, flags)) != 0) 6325 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6326 strerror(errno)); 6327 return (ret != 0); 6328 } 6329 6330 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6331 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6332 "filesystem\n"), cmdname, path); 6333 return (1); 6334 } 6335 6336 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6337 ZFS_TYPE_FILESYSTEM)) == NULL) 6338 return (1); 6339 6340 ret = 1; 6341 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6342 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6343 cmdname, path, strerror(errno)); 6344 goto out; 6345 } else if (statbuf.st_ino != path_inode) { 6346 (void) fprintf(stderr, gettext("cannot " 6347 "%s '%s': not a mountpoint\n"), cmdname, path); 6348 goto out; 6349 } 6350 6351 if (op == OP_SHARE) { 6352 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6353 char smbshare_prop[ZFS_MAXPROPLEN]; 6354 6355 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6356 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6357 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6358 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6359 6360 if (strcmp(nfs_mnt_prop, "off") == 0 && 6361 strcmp(smbshare_prop, "off") == 0) { 6362 (void) fprintf(stderr, gettext("cannot unshare " 6363 "'%s': legacy share\n"), path); 6364 (void) fprintf(stderr, gettext("use " 6365 "unshare(1M) to unshare this filesystem\n")); 6366 } else if (!zfs_is_shared(zhp)) { 6367 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6368 "not currently shared\n"), path); 6369 } else { 6370 ret = zfs_unshareall_bypath(zhp, path); 6371 } 6372 } else { 6373 char mtpt_prop[ZFS_MAXPROPLEN]; 6374 6375 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6376 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6377 6378 if (is_manual) { 6379 ret = zfs_unmount(zhp, NULL, flags); 6380 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6381 (void) fprintf(stderr, gettext("cannot unmount " 6382 "'%s': legacy mountpoint\n"), 6383 zfs_get_name(zhp)); 6384 (void) fprintf(stderr, gettext("use umount(1M) " 6385 "to unmount this filesystem\n")); 6386 } else { 6387 ret = zfs_unmountall(zhp, flags); 6388 } 6389 } 6390 6391 out: 6392 zfs_close(zhp); 6393 6394 return (ret != 0); 6395 } 6396 6397 /* 6398 * Generic callback for unsharing or unmounting a filesystem. 6399 */ 6400 static int 6401 unshare_unmount(int op, int argc, char **argv) 6402 { 6403 int do_all = 0; 6404 int flags = 0; 6405 int ret = 0; 6406 int c; 6407 zfs_handle_t *zhp; 6408 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6409 char sharesmb[ZFS_MAXPROPLEN]; 6410 6411 /* check options */ 6412 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6413 switch (c) { 6414 case 'a': 6415 do_all = 1; 6416 break; 6417 case 'f': 6418 flags = MS_FORCE; 6419 break; 6420 case '?': 6421 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6422 optopt); 6423 usage(B_FALSE); 6424 } 6425 } 6426 6427 argc -= optind; 6428 argv += optind; 6429 6430 if (do_all) { 6431 /* 6432 * We could make use of zfs_for_each() to walk all datasets in 6433 * the system, but this would be very inefficient, especially 6434 * since we would have to linearly search /etc/mnttab for each 6435 * one. Instead, do one pass through /etc/mnttab looking for 6436 * zfs entries and call zfs_unmount() for each one. 6437 * 6438 * Things get a little tricky if the administrator has created 6439 * mountpoints beneath other ZFS filesystems. In this case, we 6440 * have to unmount the deepest filesystems first. To accomplish 6441 * this, we place all the mountpoints in an AVL tree sorted by 6442 * the special type (dataset name), and walk the result in 6443 * reverse to make sure to get any snapshots first. 6444 */ 6445 struct mnttab entry; 6446 uu_avl_pool_t *pool; 6447 uu_avl_t *tree = NULL; 6448 unshare_unmount_node_t *node; 6449 uu_avl_index_t idx; 6450 uu_avl_walk_t *walk; 6451 6452 if (argc != 0) { 6453 (void) fprintf(stderr, gettext("too many arguments\n")); 6454 usage(B_FALSE); 6455 } 6456 6457 if (((pool = uu_avl_pool_create("unmount_pool", 6458 sizeof (unshare_unmount_node_t), 6459 offsetof(unshare_unmount_node_t, un_avlnode), 6460 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6461 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6462 nomem(); 6463 6464 rewind(mnttab_file); 6465 while (getmntent(mnttab_file, &entry) == 0) { 6466 6467 /* ignore non-ZFS entries */ 6468 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6469 continue; 6470 6471 /* ignore snapshots */ 6472 if (strchr(entry.mnt_special, '@') != NULL) 6473 continue; 6474 6475 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6476 ZFS_TYPE_FILESYSTEM)) == NULL) { 6477 ret = 1; 6478 continue; 6479 } 6480 6481 /* 6482 * Ignore datasets that are excluded/restricted by 6483 * parent pool name. 6484 */ 6485 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6486 zfs_close(zhp); 6487 continue; 6488 } 6489 6490 switch (op) { 6491 case OP_SHARE: 6492 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6493 nfs_mnt_prop, 6494 sizeof (nfs_mnt_prop), 6495 NULL, NULL, 0, B_FALSE) == 0); 6496 if (strcmp(nfs_mnt_prop, "off") != 0) 6497 break; 6498 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6499 nfs_mnt_prop, 6500 sizeof (nfs_mnt_prop), 6501 NULL, NULL, 0, B_FALSE) == 0); 6502 if (strcmp(nfs_mnt_prop, "off") == 0) 6503 continue; 6504 break; 6505 case OP_MOUNT: 6506 /* Ignore legacy mounts */ 6507 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6508 nfs_mnt_prop, 6509 sizeof (nfs_mnt_prop), 6510 NULL, NULL, 0, B_FALSE) == 0); 6511 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6512 continue; 6513 /* Ignore canmount=noauto mounts */ 6514 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6515 ZFS_CANMOUNT_NOAUTO) 6516 continue; 6517 default: 6518 break; 6519 } 6520 6521 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6522 node->un_zhp = zhp; 6523 node->un_mountp = safe_strdup(entry.mnt_mountp); 6524 6525 uu_avl_node_init(node, &node->un_avlnode, pool); 6526 6527 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6528 uu_avl_insert(tree, node, idx); 6529 } else { 6530 zfs_close(node->un_zhp); 6531 free(node->un_mountp); 6532 free(node); 6533 } 6534 } 6535 6536 /* 6537 * Walk the AVL tree in reverse, unmounting each filesystem and 6538 * removing it from the AVL tree in the process. 6539 */ 6540 if ((walk = uu_avl_walk_start(tree, 6541 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6542 nomem(); 6543 6544 while ((node = uu_avl_walk_next(walk)) != NULL) { 6545 uu_avl_remove(tree, node); 6546 6547 switch (op) { 6548 case OP_SHARE: 6549 if (zfs_unshareall_bypath(node->un_zhp, 6550 node->un_mountp) != 0) 6551 ret = 1; 6552 break; 6553 6554 case OP_MOUNT: 6555 if (zfs_unmount(node->un_zhp, 6556 node->un_mountp, flags) != 0) 6557 ret = 1; 6558 break; 6559 } 6560 6561 zfs_close(node->un_zhp); 6562 free(node->un_mountp); 6563 free(node); 6564 } 6565 6566 uu_avl_walk_end(walk); 6567 uu_avl_destroy(tree); 6568 uu_avl_pool_destroy(pool); 6569 6570 } else { 6571 if (argc != 1) { 6572 if (argc == 0) 6573 (void) fprintf(stderr, 6574 gettext("missing filesystem argument\n")); 6575 else 6576 (void) fprintf(stderr, 6577 gettext("too many arguments\n")); 6578 usage(B_FALSE); 6579 } 6580 6581 /* 6582 * We have an argument, but it may be a full path or a ZFS 6583 * filesystem. Pass full paths off to unmount_path() (shared by 6584 * manual_unmount), otherwise open the filesystem and pass to 6585 * zfs_unmount(). 6586 */ 6587 if (argv[0][0] == '/') 6588 return (unshare_unmount_path(op, argv[0], 6589 flags, B_FALSE)); 6590 6591 if ((zhp = zfs_open(g_zfs, argv[0], 6592 ZFS_TYPE_FILESYSTEM)) == NULL) 6593 return (1); 6594 6595 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6596 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6597 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6598 NULL, 0, B_FALSE) == 0); 6599 6600 switch (op) { 6601 case OP_SHARE: 6602 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6603 nfs_mnt_prop, 6604 sizeof (nfs_mnt_prop), 6605 NULL, NULL, 0, B_FALSE) == 0); 6606 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6607 sharesmb, sizeof (sharesmb), NULL, NULL, 6608 0, B_FALSE) == 0); 6609 6610 if (strcmp(nfs_mnt_prop, "off") == 0 && 6611 strcmp(sharesmb, "off") == 0) { 6612 (void) fprintf(stderr, gettext("cannot " 6613 "unshare '%s': legacy share\n"), 6614 zfs_get_name(zhp)); 6615 (void) fprintf(stderr, gettext("use " 6616 "unshare(1M) to unshare this " 6617 "filesystem\n")); 6618 ret = 1; 6619 } else if (!zfs_is_shared(zhp)) { 6620 (void) fprintf(stderr, gettext("cannot " 6621 "unshare '%s': not currently " 6622 "shared\n"), zfs_get_name(zhp)); 6623 ret = 1; 6624 } else if (zfs_unshareall(zhp) != 0) { 6625 ret = 1; 6626 } 6627 break; 6628 6629 case OP_MOUNT: 6630 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6631 (void) fprintf(stderr, gettext("cannot " 6632 "unmount '%s': legacy " 6633 "mountpoint\n"), zfs_get_name(zhp)); 6634 (void) fprintf(stderr, gettext("use " 6635 "umount(1M) to unmount this " 6636 "filesystem\n")); 6637 ret = 1; 6638 } else if (!zfs_is_mounted(zhp, NULL)) { 6639 (void) fprintf(stderr, gettext("cannot " 6640 "unmount '%s': not currently " 6641 "mounted\n"), 6642 zfs_get_name(zhp)); 6643 ret = 1; 6644 } else if (zfs_unmountall(zhp, flags) != 0) { 6645 ret = 1; 6646 } 6647 break; 6648 } 6649 6650 zfs_close(zhp); 6651 } 6652 6653 return (ret); 6654 } 6655 6656 /* 6657 * zfs unmount -a 6658 * zfs unmount filesystem 6659 * 6660 * Unmount all filesystems, or a specific ZFS filesystem. 6661 */ 6662 static int 6663 zfs_do_unmount(int argc, char **argv) 6664 { 6665 return (unshare_unmount(OP_MOUNT, argc, argv)); 6666 } 6667 6668 /* 6669 * zfs unshare -a 6670 * zfs unshare filesystem 6671 * 6672 * Unshare all filesystems, or a specific ZFS filesystem. 6673 */ 6674 static int 6675 zfs_do_unshare(int argc, char **argv) 6676 { 6677 return (unshare_unmount(OP_SHARE, argc, argv)); 6678 } 6679 6680 /* 6681 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6682 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6683 */ 6684 static int 6685 manual_mount(int argc, char **argv) 6686 { 6687 zfs_handle_t *zhp; 6688 char mountpoint[ZFS_MAXPROPLEN]; 6689 char mntopts[MNT_LINE_MAX] = { '\0' }; 6690 int ret = 0; 6691 int c; 6692 int flags = 0; 6693 char *dataset, *path; 6694 6695 /* check options */ 6696 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6697 switch (c) { 6698 case 'o': 6699 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6700 break; 6701 case 'O': 6702 flags |= MS_OVERLAY; 6703 break; 6704 case 'm': 6705 flags |= MS_NOMNTTAB; 6706 break; 6707 case ':': 6708 (void) fprintf(stderr, gettext("missing argument for " 6709 "'%c' option\n"), optopt); 6710 usage(B_FALSE); 6711 break; 6712 case '?': 6713 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6714 optopt); 6715 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6716 "<path>\n")); 6717 return (2); 6718 } 6719 } 6720 6721 argc -= optind; 6722 argv += optind; 6723 6724 /* check that we only have two arguments */ 6725 if (argc != 2) { 6726 if (argc == 0) 6727 (void) fprintf(stderr, gettext("missing dataset " 6728 "argument\n")); 6729 else if (argc == 1) 6730 (void) fprintf(stderr, 6731 gettext("missing mountpoint argument\n")); 6732 else 6733 (void) fprintf(stderr, gettext("too many arguments\n")); 6734 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6735 return (2); 6736 } 6737 6738 dataset = argv[0]; 6739 path = argv[1]; 6740 6741 /* try to open the dataset */ 6742 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6743 return (1); 6744 6745 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6746 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6747 6748 /* check for legacy mountpoint and complain appropriately */ 6749 ret = 0; 6750 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6751 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6752 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6753 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6754 strerror(errno)); 6755 ret = 1; 6756 } 6757 } else { 6758 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6759 "mounted using 'mount -F zfs'\n"), dataset); 6760 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6761 "instead.\n"), path); 6762 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6763 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6764 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6765 "information.\n")); 6766 ret = 1; 6767 } 6768 6769 return (ret); 6770 } 6771 6772 /* 6773 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6774 * unmounts of non-legacy filesystems, as this is the dominant administrative 6775 * interface. 6776 */ 6777 static int 6778 manual_unmount(int argc, char **argv) 6779 { 6780 int flags = 0; 6781 int c; 6782 6783 /* check options */ 6784 while ((c = getopt(argc, argv, "f")) != -1) { 6785 switch (c) { 6786 case 'f': 6787 flags = MS_FORCE; 6788 break; 6789 case '?': 6790 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6791 optopt); 6792 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6793 "<path>\n")); 6794 return (2); 6795 } 6796 } 6797 6798 argc -= optind; 6799 argv += optind; 6800 6801 /* check arguments */ 6802 if (argc != 1) { 6803 if (argc == 0) 6804 (void) fprintf(stderr, gettext("missing path " 6805 "argument\n")); 6806 else 6807 (void) fprintf(stderr, gettext("too many arguments\n")); 6808 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6809 return (2); 6810 } 6811 6812 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6813 } 6814 6815 static int 6816 find_command_idx(char *command, int *idx) 6817 { 6818 int i; 6819 6820 for (i = 0; i < NCOMMAND; i++) { 6821 if (command_table[i].name == NULL) 6822 continue; 6823 6824 if (strcmp(command, command_table[i].name) == 0) { 6825 *idx = i; 6826 return (0); 6827 } 6828 } 6829 return (1); 6830 } 6831 6832 static int 6833 zfs_do_diff(int argc, char **argv) 6834 { 6835 zfs_handle_t *zhp; 6836 int flags = 0; 6837 char *tosnap = NULL; 6838 char *fromsnap = NULL; 6839 char *atp, *copy; 6840 int err = 0; 6841 int c; 6842 6843 while ((c = getopt(argc, argv, "FHt")) != -1) { 6844 switch (c) { 6845 case 'F': 6846 flags |= ZFS_DIFF_CLASSIFY; 6847 break; 6848 case 'H': 6849 flags |= ZFS_DIFF_PARSEABLE; 6850 break; 6851 case 't': 6852 flags |= ZFS_DIFF_TIMESTAMP; 6853 break; 6854 default: 6855 (void) fprintf(stderr, 6856 gettext("invalid option '%c'\n"), optopt); 6857 usage(B_FALSE); 6858 } 6859 } 6860 6861 argc -= optind; 6862 argv += optind; 6863 6864 if (argc < 1) { 6865 (void) fprintf(stderr, 6866 gettext("must provide at least one snapshot name\n")); 6867 usage(B_FALSE); 6868 } 6869 6870 if (argc > 2) { 6871 (void) fprintf(stderr, gettext("too many arguments\n")); 6872 usage(B_FALSE); 6873 } 6874 6875 fromsnap = argv[0]; 6876 tosnap = (argc == 2) ? argv[1] : NULL; 6877 6878 copy = NULL; 6879 if (*fromsnap != '@') 6880 copy = strdup(fromsnap); 6881 else if (tosnap) 6882 copy = strdup(tosnap); 6883 if (copy == NULL) 6884 usage(B_FALSE); 6885 6886 if ((atp = strchr(copy, '@')) != NULL) 6887 *atp = '\0'; 6888 6889 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6890 return (1); 6891 6892 free(copy); 6893 6894 /* 6895 * Ignore SIGPIPE so that the library can give us 6896 * information on any failure 6897 */ 6898 (void) sigignore(SIGPIPE); 6899 6900 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6901 6902 zfs_close(zhp); 6903 6904 return (err != 0); 6905 } 6906 6907 static int 6908 zfs_do_remap(int argc, char **argv) 6909 { 6910 const char *fsname; 6911 int err = 0; 6912 if (argc != 2) { 6913 (void) fprintf(stderr, gettext("wrong number of arguments\n")); 6914 usage(B_FALSE); 6915 } 6916 6917 fsname = argv[1]; 6918 err = zfs_remap_indirects(g_zfs, fsname); 6919 6920 return (err); 6921 } 6922 6923 /* 6924 * zfs bookmark <fs@snap> <fs#bmark> 6925 * 6926 * Creates a bookmark with the given name from the given snapshot. 6927 */ 6928 static int 6929 zfs_do_bookmark(int argc, char **argv) 6930 { 6931 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 6932 zfs_handle_t *zhp; 6933 nvlist_t *nvl; 6934 int ret = 0; 6935 int c; 6936 6937 /* check options */ 6938 while ((c = getopt(argc, argv, "")) != -1) { 6939 switch (c) { 6940 case '?': 6941 (void) fprintf(stderr, 6942 gettext("invalid option '%c'\n"), optopt); 6943 goto usage; 6944 } 6945 } 6946 6947 argc -= optind; 6948 argv += optind; 6949 6950 /* check number of arguments */ 6951 if (argc < 1) { 6952 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6953 goto usage; 6954 } 6955 if (argc < 2) { 6956 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6957 goto usage; 6958 } 6959 6960 if (strchr(argv[1], '#') == NULL) { 6961 (void) fprintf(stderr, 6962 gettext("invalid bookmark name '%s' -- " 6963 "must contain a '#'\n"), argv[1]); 6964 goto usage; 6965 } 6966 6967 if (argv[0][0] == '@') { 6968 /* 6969 * Snapshot name begins with @. 6970 * Default to same fs as bookmark. 6971 */ 6972 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6973 *strchr(snapname, '#') = '\0'; 6974 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6975 } else { 6976 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6977 } 6978 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6979 if (zhp == NULL) 6980 goto usage; 6981 zfs_close(zhp); 6982 6983 6984 nvl = fnvlist_alloc(); 6985 fnvlist_add_string(nvl, argv[1], snapname); 6986 ret = lzc_bookmark(nvl, NULL); 6987 fnvlist_free(nvl); 6988 6989 if (ret != 0) { 6990 const char *err_msg; 6991 char errbuf[1024]; 6992 6993 (void) snprintf(errbuf, sizeof (errbuf), 6994 dgettext(TEXT_DOMAIN, 6995 "cannot create bookmark '%s'"), argv[1]); 6996 6997 switch (ret) { 6998 case EXDEV: 6999 err_msg = "bookmark is in a different pool"; 7000 break; 7001 case EEXIST: 7002 err_msg = "bookmark exists"; 7003 break; 7004 case EINVAL: 7005 err_msg = "invalid argument"; 7006 break; 7007 case ENOTSUP: 7008 err_msg = "bookmark feature not enabled"; 7009 break; 7010 case ENOSPC: 7011 err_msg = "out of space"; 7012 break; 7013 default: 7014 err_msg = "unknown error"; 7015 break; 7016 } 7017 (void) fprintf(stderr, "%s: %s\n", errbuf, 7018 dgettext(TEXT_DOMAIN, err_msg)); 7019 } 7020 7021 return (ret != 0); 7022 7023 usage: 7024 usage(B_FALSE); 7025 return (-1); 7026 } 7027 7028 static int 7029 zfs_do_channel_program(int argc, char **argv) 7030 { 7031 int ret, fd; 7032 char c; 7033 char *progbuf, *filename, *poolname; 7034 size_t progsize, progread; 7035 nvlist_t *outnvl; 7036 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7037 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7038 boolean_t sync_flag = B_TRUE; 7039 zpool_handle_t *zhp; 7040 7041 /* check options */ 7042 while (-1 != 7043 (c = getopt(argc, argv, "nt:(instr-limit)m:(memory-limit)"))) { 7044 switch (c) { 7045 case 't': 7046 case 'm': { 7047 uint64_t arg; 7048 char *endp; 7049 7050 errno = 0; 7051 arg = strtoull(optarg, &endp, 0); 7052 if (errno != 0 || *endp != '\0') { 7053 (void) fprintf(stderr, gettext( 7054 "invalid argument " 7055 "'%s': expected integer\n"), optarg); 7056 goto usage; 7057 } 7058 7059 if (c == 't') { 7060 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) { 7061 (void) fprintf(stderr, gettext( 7062 "Invalid instruction limit: " 7063 "%s\n"), optarg); 7064 return (1); 7065 } else { 7066 instrlimit = arg; 7067 } 7068 } else { 7069 ASSERT3U(c, ==, 'm'); 7070 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) { 7071 (void) fprintf(stderr, gettext( 7072 "Invalid memory limit: " 7073 "%s\n"), optarg); 7074 return (1); 7075 } else { 7076 memlimit = arg; 7077 } 7078 } 7079 break; 7080 } 7081 case 'n': { 7082 sync_flag = B_FALSE; 7083 break; 7084 } 7085 case '?': 7086 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7087 optopt); 7088 goto usage; 7089 } 7090 } 7091 7092 argc -= optind; 7093 argv += optind; 7094 7095 if (argc < 2) { 7096 (void) fprintf(stderr, 7097 gettext("invalid number of arguments\n")); 7098 goto usage; 7099 } 7100 7101 poolname = argv[0]; 7102 filename = argv[1]; 7103 if (strcmp(filename, "-") == 0) { 7104 fd = 0; 7105 filename = "standard input"; 7106 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7107 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7108 filename, strerror(errno)); 7109 return (1); 7110 } 7111 7112 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7113 (void) fprintf(stderr, gettext("cannot open pool '%s'"), 7114 poolname); 7115 return (1); 7116 } 7117 zpool_close(zhp); 7118 7119 /* 7120 * Read in the channel program, expanding the program buffer as 7121 * necessary. 7122 */ 7123 progread = 0; 7124 progsize = 1024; 7125 progbuf = safe_malloc(progsize); 7126 do { 7127 ret = read(fd, progbuf + progread, progsize - progread); 7128 progread += ret; 7129 if (progread == progsize && ret > 0) { 7130 progsize *= 2; 7131 progbuf = safe_realloc(progbuf, progsize); 7132 } 7133 } while (ret > 0); 7134 7135 if (fd != 0) 7136 (void) close(fd); 7137 if (ret < 0) { 7138 free(progbuf); 7139 (void) fprintf(stderr, 7140 gettext("cannot read '%s': %s\n"), 7141 filename, strerror(errno)); 7142 return (1); 7143 } 7144 progbuf[progread] = '\0'; 7145 7146 /* 7147 * Any remaining arguments are passed as arguments to the lua script as 7148 * a string array: 7149 * { 7150 * "argv" -> [ "arg 1", ... "arg n" ], 7151 * } 7152 */ 7153 nvlist_t *argnvl = fnvlist_alloc(); 7154 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 7155 7156 if (sync_flag) { 7157 ret = lzc_channel_program(poolname, progbuf, 7158 instrlimit, memlimit, argnvl, &outnvl); 7159 } else { 7160 ret = lzc_channel_program_nosync(poolname, progbuf, 7161 instrlimit, memlimit, argnvl, &outnvl); 7162 } 7163 7164 if (ret != 0) { 7165 /* 7166 * On error, report the error message handed back by lua if one 7167 * exists. Otherwise, generate an appropriate error message, 7168 * falling back on strerror() for an unexpected return code. 7169 */ 7170 char *errstring = NULL; 7171 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) { 7172 (void) nvlist_lookup_string(outnvl, 7173 ZCP_RET_ERROR, &errstring); 7174 if (errstring == NULL) 7175 errstring = strerror(ret); 7176 } else { 7177 switch (ret) { 7178 case EINVAL: 7179 errstring = 7180 "Invalid instruction or memory limit."; 7181 break; 7182 case ENOMEM: 7183 errstring = "Return value too large."; 7184 break; 7185 case ENOSPC: 7186 errstring = "Memory limit exhausted."; 7187 break; 7188 case ETIME: 7189 errstring = "Timed out."; 7190 break; 7191 case EPERM: 7192 errstring = "Permission denied. Channel " 7193 "programs must be run as root."; 7194 break; 7195 default: 7196 errstring = strerror(ret); 7197 } 7198 } 7199 (void) fprintf(stderr, 7200 gettext("Channel program execution failed:\n%s\n"), 7201 errstring); 7202 } else { 7203 (void) printf("Channel program fully executed "); 7204 if (nvlist_empty(outnvl)) { 7205 (void) printf("with no return value.\n"); 7206 } else { 7207 (void) printf("with return value:\n"); 7208 dump_nvlist(outnvl, 4); 7209 } 7210 } 7211 7212 free(progbuf); 7213 fnvlist_free(outnvl); 7214 fnvlist_free(argnvl); 7215 return (ret != 0); 7216 7217 usage: 7218 usage(B_FALSE); 7219 return (-1); 7220 } 7221 7222 int 7223 main(int argc, char **argv) 7224 { 7225 int ret = 0; 7226 int i; 7227 char *progname; 7228 char *cmdname; 7229 7230 (void) setlocale(LC_ALL, ""); 7231 (void) textdomain(TEXT_DOMAIN); 7232 7233 opterr = 0; 7234 7235 if ((g_zfs = libzfs_init()) == NULL) { 7236 (void) fprintf(stderr, gettext("internal error: failed to " 7237 "initialize ZFS library\n")); 7238 return (1); 7239 } 7240 7241 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7242 7243 libzfs_print_on_error(g_zfs, B_TRUE); 7244 7245 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7246 (void) fprintf(stderr, gettext("internal error: unable to " 7247 "open %s\n"), MNTTAB); 7248 return (1); 7249 } 7250 7251 /* 7252 * This command also doubles as the /etc/fs mount and unmount program. 7253 * Determine if we should take this behavior based on argv[0]. 7254 */ 7255 progname = basename(argv[0]); 7256 if (strcmp(progname, "mount") == 0) { 7257 ret = manual_mount(argc, argv); 7258 } else if (strcmp(progname, "umount") == 0) { 7259 ret = manual_unmount(argc, argv); 7260 } else { 7261 /* 7262 * Make sure the user has specified some command. 7263 */ 7264 if (argc < 2) { 7265 (void) fprintf(stderr, gettext("missing command\n")); 7266 usage(B_FALSE); 7267 } 7268 7269 cmdname = argv[1]; 7270 7271 /* 7272 * The 'umount' command is an alias for 'unmount' 7273 */ 7274 if (strcmp(cmdname, "umount") == 0) 7275 cmdname = "unmount"; 7276 7277 /* 7278 * The 'recv' command is an alias for 'receive' 7279 */ 7280 if (strcmp(cmdname, "recv") == 0) 7281 cmdname = "receive"; 7282 7283 /* 7284 * The 'snap' command is an alias for 'snapshot' 7285 */ 7286 if (strcmp(cmdname, "snap") == 0) 7287 cmdname = "snapshot"; 7288 7289 /* 7290 * Special case '-?' 7291 */ 7292 if (strcmp(cmdname, "-?") == 0) 7293 usage(B_TRUE); 7294 7295 /* 7296 * Run the appropriate command. 7297 */ 7298 libzfs_mnttab_cache(g_zfs, B_TRUE); 7299 if (find_command_idx(cmdname, &i) == 0) { 7300 current_command = &command_table[i]; 7301 ret = command_table[i].func(argc - 1, argv + 1); 7302 } else if (strchr(cmdname, '=') != NULL) { 7303 verify(find_command_idx("set", &i) == 0); 7304 current_command = &command_table[i]; 7305 ret = command_table[i].func(argc, argv); 7306 } else { 7307 (void) fprintf(stderr, gettext("unrecognized " 7308 "command '%s'\n"), cmdname); 7309 usage(B_FALSE); 7310 } 7311 libzfs_mnttab_cache(g_zfs, B_FALSE); 7312 } 7313 7314 (void) fclose(mnttab_file); 7315 7316 if (ret == 0 && log_history) 7317 (void) zpool_log_history(g_zfs, history_str); 7318 7319 libzfs_fini(g_zfs); 7320 7321 /* 7322 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7323 * for the purposes of running ::findleaks. 7324 */ 7325 if (getenv("ZFS_ABORT") != NULL) { 7326 (void) printf("dumping core by request\n"); 7327 abort(); 7328 } 7329 7330 return (ret); 7331 } 7332