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 #include <synch.h> 64 65 #include <libzfs.h> 66 #include <libzfs_core.h> 67 #include <zfs_prop.h> 68 #include <zfs_deleg.h> 69 #include <libuutil.h> 70 #include <aclutils.h> 71 #include <directory.h> 72 #include <idmap.h> 73 #include <libshare.h> 74 75 #include "zfs_iter.h" 76 #include "zfs_util.h" 77 #include "zfs_comutil.h" 78 79 libzfs_handle_t *g_zfs; 80 81 static FILE *mnttab_file; 82 static char history_str[HIS_MAX_RECORD_LEN]; 83 static boolean_t log_history = B_TRUE; 84 85 static int zfs_do_clone(int argc, char **argv); 86 static int zfs_do_create(int argc, char **argv); 87 static int zfs_do_destroy(int argc, char **argv); 88 static int zfs_do_get(int argc, char **argv); 89 static int zfs_do_inherit(int argc, char **argv); 90 static int zfs_do_list(int argc, char **argv); 91 static int zfs_do_mount(int argc, char **argv); 92 static int zfs_do_rename(int argc, char **argv); 93 static int zfs_do_rollback(int argc, char **argv); 94 static int zfs_do_set(int argc, char **argv); 95 static int zfs_do_upgrade(int argc, char **argv); 96 static int zfs_do_snapshot(int argc, char **argv); 97 static int zfs_do_unmount(int argc, char **argv); 98 static int zfs_do_share(int argc, char **argv); 99 static int zfs_do_unshare(int argc, char **argv); 100 static int zfs_do_send(int argc, char **argv); 101 static int zfs_do_receive(int argc, char **argv); 102 static int zfs_do_promote(int argc, char **argv); 103 static int zfs_do_userspace(int argc, char **argv); 104 static int zfs_do_allow(int argc, char **argv); 105 static int zfs_do_unallow(int argc, char **argv); 106 static int zfs_do_hold(int argc, char **argv); 107 static int zfs_do_holds(int argc, char **argv); 108 static int zfs_do_release(int argc, char **argv); 109 static int zfs_do_diff(int argc, char **argv); 110 static int zfs_do_bookmark(int argc, char **argv); 111 static int zfs_do_remap(int argc, char **argv); 112 static int zfs_do_channel_program(int argc, char **argv); 113 114 /* 115 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 116 */ 117 118 #ifdef DEBUG 119 const char * 120 _umem_debug_init(void) 121 { 122 return ("default,verbose"); /* $UMEM_DEBUG setting */ 123 } 124 125 const char * 126 _umem_logging_init(void) 127 { 128 return ("fail,contents"); /* $UMEM_LOGGING setting */ 129 } 130 #endif 131 132 typedef enum { 133 HELP_CLONE, 134 HELP_CREATE, 135 HELP_DESTROY, 136 HELP_GET, 137 HELP_INHERIT, 138 HELP_UPGRADE, 139 HELP_LIST, 140 HELP_MOUNT, 141 HELP_PROMOTE, 142 HELP_RECEIVE, 143 HELP_RENAME, 144 HELP_ROLLBACK, 145 HELP_SEND, 146 HELP_SET, 147 HELP_SHARE, 148 HELP_SNAPSHOT, 149 HELP_UNMOUNT, 150 HELP_UNSHARE, 151 HELP_ALLOW, 152 HELP_UNALLOW, 153 HELP_USERSPACE, 154 HELP_GROUPSPACE, 155 HELP_HOLD, 156 HELP_HOLDS, 157 HELP_RELEASE, 158 HELP_DIFF, 159 HELP_REMAP, 160 HELP_BOOKMARK, 161 HELP_CHANNEL_PROGRAM, 162 } zfs_help_t; 163 164 typedef struct zfs_command { 165 const char *name; 166 int (*func)(int argc, char **argv); 167 zfs_help_t usage; 168 } zfs_command_t; 169 170 /* 171 * Master command table. Each ZFS command has a name, associated function, and 172 * usage message. The usage messages need to be internationalized, so we have 173 * to have a function to return the usage message based on a command index. 174 * 175 * These commands are organized according to how they are displayed in the usage 176 * message. An empty command (one with a NULL name) indicates an empty line in 177 * the generic usage message. 178 */ 179 static zfs_command_t command_table[] = { 180 { "create", zfs_do_create, HELP_CREATE }, 181 { "destroy", zfs_do_destroy, HELP_DESTROY }, 182 { NULL }, 183 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 184 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 185 { "clone", zfs_do_clone, HELP_CLONE }, 186 { "promote", zfs_do_promote, HELP_PROMOTE }, 187 { "rename", zfs_do_rename, HELP_RENAME }, 188 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 189 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 190 { NULL }, 191 { "list", zfs_do_list, HELP_LIST }, 192 { NULL }, 193 { "set", zfs_do_set, HELP_SET }, 194 { "get", zfs_do_get, HELP_GET }, 195 { "inherit", zfs_do_inherit, HELP_INHERIT }, 196 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 197 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 198 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 199 { NULL }, 200 { "mount", zfs_do_mount, HELP_MOUNT }, 201 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 202 { "share", zfs_do_share, HELP_SHARE }, 203 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 204 { NULL }, 205 { "send", zfs_do_send, HELP_SEND }, 206 { "receive", zfs_do_receive, HELP_RECEIVE }, 207 { NULL }, 208 { "allow", zfs_do_allow, HELP_ALLOW }, 209 { NULL }, 210 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 211 { NULL }, 212 { "hold", zfs_do_hold, HELP_HOLD }, 213 { "holds", zfs_do_holds, HELP_HOLDS }, 214 { "release", zfs_do_release, HELP_RELEASE }, 215 { "diff", zfs_do_diff, HELP_DIFF }, 216 { "remap", zfs_do_remap, HELP_REMAP }, 217 }; 218 219 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 220 221 zfs_command_t *current_command; 222 223 static const char * 224 get_usage(zfs_help_t idx) 225 { 226 switch (idx) { 227 case HELP_CLONE: 228 return (gettext("\tclone [-p] [-o property=value] ... " 229 "<snapshot> <filesystem|volume>\n")); 230 case HELP_CREATE: 231 return (gettext("\tcreate [-p] [-o property=value] ... " 232 "<filesystem>\n" 233 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 234 "-V <size> <volume>\n")); 235 case HELP_DESTROY: 236 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 237 "\tdestroy [-dnpRrv] " 238 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 239 "\tdestroy <filesystem|volume>#<bookmark>\n")); 240 case HELP_GET: 241 return (gettext("\tget [-rHp] [-d max] " 242 "[-o \"all\" | field[,...]]\n" 243 "\t [-t type[,...]] [-s source[,...]]\n" 244 "\t <\"all\" | property[,...]> " 245 "[filesystem|volume|snapshot|bookmark] ...\n")); 246 case HELP_INHERIT: 247 return (gettext("\tinherit [-rS] <property> " 248 "<filesystem|volume|snapshot> ...\n")); 249 case HELP_UPGRADE: 250 return (gettext("\tupgrade [-v]\n" 251 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 252 case HELP_LIST: 253 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 254 "[-s property]...\n\t [-S property]... [-t type[,...]] " 255 "[filesystem|volume|snapshot] ...\n")); 256 case HELP_MOUNT: 257 return (gettext("\tmount\n" 258 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 259 case HELP_PROMOTE: 260 return (gettext("\tpromote <clone-filesystem>\n")); 261 case HELP_RECEIVE: 262 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 263 "snapshot>\n" 264 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 265 "<filesystem>\n" 266 "\treceive -A <filesystem|volume>\n")); 267 case HELP_RENAME: 268 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 269 "<filesystem|volume|snapshot>\n" 270 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 271 "\trename -r <snapshot> <snapshot>\n")); 272 case HELP_ROLLBACK: 273 return (gettext("\trollback [-rRf] <snapshot>\n")); 274 case HELP_SEND: 275 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] " 276 "<snapshot>\n" 277 "\tsend [-Le] [-i snapshot|bookmark] " 278 "<filesystem|volume|snapshot>\n" 279 "\tsend [-nvPe] -t <receive_resume_token>\n")); 280 case HELP_SET: 281 return (gettext("\tset <property=value> ... " 282 "<filesystem|volume|snapshot> ...\n")); 283 case HELP_SHARE: 284 return (gettext("\tshare <-a | filesystem>\n")); 285 case HELP_SNAPSHOT: 286 return (gettext("\tsnapshot [-r] [-o property=value] ... " 287 "<filesystem|volume>@<snap> ...\n")); 288 case HELP_UNMOUNT: 289 return (gettext("\tunmount [-f] " 290 "<-a | filesystem|mountpoint>\n")); 291 case HELP_UNSHARE: 292 return (gettext("\tunshare " 293 "<-a | filesystem|mountpoint>\n")); 294 case HELP_ALLOW: 295 return (gettext("\tallow <filesystem|volume>\n" 296 "\tallow [-ldug] " 297 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 298 "\t <filesystem|volume>\n" 299 "\tallow [-ld] -e <perm|@setname>[,...] " 300 "<filesystem|volume>\n" 301 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 302 "\tallow -s @setname <perm|@setname>[,...] " 303 "<filesystem|volume>\n")); 304 case HELP_UNALLOW: 305 return (gettext("\tunallow [-rldug] " 306 "<\"everyone\"|user|group>[,...]\n" 307 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 308 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 309 "<filesystem|volume>\n" 310 "\tunallow [-r] -c [<perm|@setname>[,...]] " 311 "<filesystem|volume>\n" 312 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 313 "<filesystem|volume>\n")); 314 case HELP_USERSPACE: 315 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 316 "[-s field] ...\n" 317 "\t [-S field] ... [-t type[,...]] " 318 "<filesystem|snapshot>\n")); 319 case HELP_GROUPSPACE: 320 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 321 "[-s field] ...\n" 322 "\t [-S field] ... [-t type[,...]] " 323 "<filesystem|snapshot>\n")); 324 case HELP_HOLD: 325 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 326 case HELP_HOLDS: 327 return (gettext("\tholds [-r] <snapshot> ...\n")); 328 case HELP_RELEASE: 329 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 330 case HELP_DIFF: 331 return (gettext("\tdiff [-FHt] <snapshot> " 332 "[snapshot|filesystem]\n")); 333 case HELP_REMAP: 334 return (gettext("\tremap <filesystem | volume>\n")); 335 case HELP_BOOKMARK: 336 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 337 case HELP_CHANNEL_PROGRAM: 338 return (gettext("\tprogram [-n] [-t <instruction limit>] " 339 "[-m <memory limit (b)>] <pool> <program file> " 340 "[lua args...]\n")); 341 } 342 343 abort(); 344 /* NOTREACHED */ 345 } 346 347 void 348 nomem(void) 349 { 350 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 351 exit(1); 352 } 353 354 /* 355 * Utility function to guarantee malloc() success. 356 */ 357 358 void * 359 safe_malloc(size_t size) 360 { 361 void *data; 362 363 if ((data = calloc(1, size)) == NULL) 364 nomem(); 365 366 return (data); 367 } 368 369 void * 370 safe_realloc(void *data, size_t size) 371 { 372 void *newp; 373 if ((newp = realloc(data, size)) == NULL) { 374 free(data); 375 nomem(); 376 } 377 378 return (newp); 379 } 380 381 static char * 382 safe_strdup(char *str) 383 { 384 char *dupstr = strdup(str); 385 386 if (dupstr == NULL) 387 nomem(); 388 389 return (dupstr); 390 } 391 392 /* 393 * Callback routine that will print out information for each of 394 * the properties. 395 */ 396 static int 397 usage_prop_cb(int prop, void *cb) 398 { 399 FILE *fp = cb; 400 401 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 402 403 if (zfs_prop_readonly(prop)) 404 (void) fprintf(fp, " NO "); 405 else 406 (void) fprintf(fp, "YES "); 407 408 if (zfs_prop_inheritable(prop)) 409 (void) fprintf(fp, " YES "); 410 else 411 (void) fprintf(fp, " NO "); 412 413 if (zfs_prop_values(prop) == NULL) 414 (void) fprintf(fp, "-\n"); 415 else 416 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 417 418 return (ZPROP_CONT); 419 } 420 421 /* 422 * Display usage message. If we're inside a command, display only the usage for 423 * that command. Otherwise, iterate over the entire command table and display 424 * a complete usage message. 425 */ 426 static void 427 usage(boolean_t requested) 428 { 429 int i; 430 boolean_t show_properties = B_FALSE; 431 FILE *fp = requested ? stdout : stderr; 432 433 if (current_command == NULL) { 434 435 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 436 (void) fprintf(fp, 437 gettext("where 'command' is one of the following:\n\n")); 438 439 for (i = 0; i < NCOMMAND; i++) { 440 if (command_table[i].name == NULL) 441 (void) fprintf(fp, "\n"); 442 else 443 (void) fprintf(fp, "%s", 444 get_usage(command_table[i].usage)); 445 } 446 447 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 448 "pool/[dataset/]*dataset[@name]\n")); 449 } else { 450 (void) fprintf(fp, gettext("usage:\n")); 451 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 452 } 453 454 if (current_command != NULL && 455 (strcmp(current_command->name, "set") == 0 || 456 strcmp(current_command->name, "get") == 0 || 457 strcmp(current_command->name, "inherit") == 0 || 458 strcmp(current_command->name, "list") == 0)) 459 show_properties = B_TRUE; 460 461 if (show_properties) { 462 (void) fprintf(fp, 463 gettext("\nThe following properties are supported:\n")); 464 465 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 466 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 467 468 /* Iterate over all properties */ 469 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 470 ZFS_TYPE_DATASET); 471 472 (void) fprintf(fp, "\t%-15s ", "userused@..."); 473 (void) fprintf(fp, " NO NO <size>\n"); 474 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 475 (void) fprintf(fp, " NO NO <size>\n"); 476 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 477 (void) fprintf(fp, "YES NO <size> | none\n"); 478 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 479 (void) fprintf(fp, "YES NO <size> | none\n"); 480 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 481 (void) fprintf(fp, " NO NO <size>\n"); 482 483 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 484 "with standard units such as K, M, G, etc.\n")); 485 (void) fprintf(fp, gettext("\nUser-defined properties can " 486 "be specified by using a name containing a colon (:).\n")); 487 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 488 "properties must be appended with\n" 489 "a user or group specifier of one of these forms:\n" 490 " POSIX name (eg: \"matt\")\n" 491 " POSIX id (eg: \"126829\")\n" 492 " SMB name@domain (eg: \"matt@sun\")\n" 493 " SMB SID (eg: \"S-1-234-567-89\")\n")); 494 } else { 495 (void) fprintf(fp, 496 gettext("\nFor the property list, run: %s\n"), 497 "zfs set|get"); 498 (void) fprintf(fp, 499 gettext("\nFor the delegated permission list, run: %s\n"), 500 "zfs allow|unallow"); 501 } 502 503 /* 504 * See comments at end of main(). 505 */ 506 if (getenv("ZFS_ABORT") != NULL) { 507 (void) printf("dumping core by request\n"); 508 abort(); 509 } 510 511 exit(requested ? 0 : 2); 512 } 513 514 /* 515 * Take a property=value argument string and add it to the given nvlist. 516 * Modifies the argument inplace. 517 */ 518 static int 519 parseprop(nvlist_t *props, char *propname) 520 { 521 char *propval, *strval; 522 523 if ((propval = strchr(propname, '=')) == NULL) { 524 (void) fprintf(stderr, gettext("missing " 525 "'=' for property=value argument\n")); 526 return (-1); 527 } 528 *propval = '\0'; 529 propval++; 530 if (nvlist_lookup_string(props, propname, &strval) == 0) { 531 (void) fprintf(stderr, gettext("property '%s' " 532 "specified multiple times\n"), propname); 533 return (-1); 534 } 535 if (nvlist_add_string(props, propname, propval) != 0) 536 nomem(); 537 return (0); 538 } 539 540 static int 541 parse_depth(char *opt, int *flags) 542 { 543 char *tmp; 544 int depth; 545 546 depth = (int)strtol(opt, &tmp, 0); 547 if (*tmp) { 548 (void) fprintf(stderr, 549 gettext("%s is not an integer\n"), optarg); 550 usage(B_FALSE); 551 } 552 if (depth < 0) { 553 (void) fprintf(stderr, 554 gettext("Depth can not be negative.\n")); 555 usage(B_FALSE); 556 } 557 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 558 return (depth); 559 } 560 561 #define PROGRESS_DELAY 2 /* seconds */ 562 563 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"; 564 static time_t pt_begin; 565 static char *pt_header = NULL; 566 static boolean_t pt_shown; 567 568 static void 569 start_progress_timer(void) 570 { 571 pt_begin = time(NULL) + PROGRESS_DELAY; 572 pt_shown = B_FALSE; 573 } 574 575 static void 576 set_progress_header(char *header) 577 { 578 assert(pt_header == NULL); 579 pt_header = safe_strdup(header); 580 if (pt_shown) { 581 (void) printf("%s: ", header); 582 (void) fflush(stdout); 583 } 584 } 585 586 static void 587 update_progress(char *update) 588 { 589 if (!pt_shown && time(NULL) > pt_begin) { 590 int len = strlen(update); 591 592 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 593 pt_reverse); 594 (void) fflush(stdout); 595 pt_shown = B_TRUE; 596 } else if (pt_shown) { 597 int len = strlen(update); 598 599 (void) printf("%s%*.*s", update, len, len, pt_reverse); 600 (void) fflush(stdout); 601 } 602 } 603 604 static void 605 finish_progress(char *done) 606 { 607 if (pt_shown) { 608 (void) printf("%s\n", done); 609 (void) fflush(stdout); 610 } 611 free(pt_header); 612 pt_header = NULL; 613 } 614 615 /* 616 * Check if the dataset is mountable and should be automatically mounted. 617 */ 618 static boolean_t 619 should_auto_mount(zfs_handle_t *zhp) 620 { 621 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 622 return (B_FALSE); 623 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 624 } 625 626 /* 627 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 628 * 629 * Given an existing dataset, create a writable copy whose initial contents 630 * are the same as the source. The newly created dataset maintains a 631 * dependency on the original; the original cannot be destroyed so long as 632 * the clone exists. 633 * 634 * The '-p' flag creates all the non-existing ancestors of the target first. 635 */ 636 static int 637 zfs_do_clone(int argc, char **argv) 638 { 639 zfs_handle_t *zhp = NULL; 640 boolean_t parents = B_FALSE; 641 nvlist_t *props; 642 int ret = 0; 643 int c; 644 645 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 646 nomem(); 647 648 /* check options */ 649 while ((c = getopt(argc, argv, "o:p")) != -1) { 650 switch (c) { 651 case 'o': 652 if (parseprop(props, optarg) != 0) 653 return (1); 654 break; 655 case 'p': 656 parents = B_TRUE; 657 break; 658 case '?': 659 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 660 optopt); 661 goto usage; 662 } 663 } 664 665 argc -= optind; 666 argv += optind; 667 668 /* check number of arguments */ 669 if (argc < 1) { 670 (void) fprintf(stderr, gettext("missing source dataset " 671 "argument\n")); 672 goto usage; 673 } 674 if (argc < 2) { 675 (void) fprintf(stderr, gettext("missing target dataset " 676 "argument\n")); 677 goto usage; 678 } 679 if (argc > 2) { 680 (void) fprintf(stderr, gettext("too many arguments\n")); 681 goto usage; 682 } 683 684 /* open the source dataset */ 685 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 686 return (1); 687 688 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 689 ZFS_TYPE_VOLUME)) { 690 /* 691 * Now create the ancestors of the target dataset. If the 692 * target already exists and '-p' option was used we should not 693 * complain. 694 */ 695 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 696 ZFS_TYPE_VOLUME)) 697 return (0); 698 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 699 return (1); 700 } 701 702 /* pass to libzfs */ 703 ret = zfs_clone(zhp, argv[1], props); 704 705 /* create the mountpoint if necessary */ 706 if (ret == 0) { 707 zfs_handle_t *clone; 708 709 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 710 if (clone != NULL) { 711 /* 712 * If the user doesn't want the dataset 713 * automatically mounted, then skip the mount/share 714 * step. 715 */ 716 if (should_auto_mount(clone)) { 717 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 718 (void) fprintf(stderr, gettext("clone " 719 "successfully created, " 720 "but not mounted\n")); 721 } else if ((ret = zfs_share(clone)) != 0) { 722 (void) fprintf(stderr, gettext("clone " 723 "successfully created, " 724 "but not shared\n")); 725 } 726 } 727 zfs_close(clone); 728 } 729 } 730 731 zfs_close(zhp); 732 nvlist_free(props); 733 734 return (!!ret); 735 736 usage: 737 if (zhp) 738 zfs_close(zhp); 739 nvlist_free(props); 740 usage(B_FALSE); 741 return (-1); 742 } 743 744 /* 745 * zfs create [-p] [-o prop=value] ... fs 746 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 747 * 748 * Create a new dataset. This command can be used to create filesystems 749 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 750 * For volumes, the user must specify a size to be used. 751 * 752 * The '-s' flag applies only to volumes, and indicates that we should not try 753 * to set the reservation for this volume. By default we set a reservation 754 * equal to the size for any volume. For pools with SPA_VERSION >= 755 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 756 * 757 * The '-p' flag creates all the non-existing ancestors of the target first. 758 */ 759 static int 760 zfs_do_create(int argc, char **argv) 761 { 762 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 763 zfs_handle_t *zhp = NULL; 764 uint64_t volsize = 0; 765 int c; 766 boolean_t noreserve = B_FALSE; 767 boolean_t bflag = B_FALSE; 768 boolean_t parents = B_FALSE; 769 int ret = 1; 770 nvlist_t *props; 771 uint64_t intval; 772 773 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 774 nomem(); 775 776 /* check options */ 777 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 778 switch (c) { 779 case 'V': 780 type = ZFS_TYPE_VOLUME; 781 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 782 (void) fprintf(stderr, gettext("bad volume " 783 "size '%s': %s\n"), optarg, 784 libzfs_error_description(g_zfs)); 785 goto error; 786 } 787 788 if (nvlist_add_uint64(props, 789 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 790 nomem(); 791 volsize = intval; 792 break; 793 case 'p': 794 parents = B_TRUE; 795 break; 796 case 'b': 797 bflag = B_TRUE; 798 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 799 (void) fprintf(stderr, gettext("bad volume " 800 "block size '%s': %s\n"), optarg, 801 libzfs_error_description(g_zfs)); 802 goto error; 803 } 804 805 if (nvlist_add_uint64(props, 806 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 807 intval) != 0) 808 nomem(); 809 break; 810 case 'o': 811 if (parseprop(props, optarg) != 0) 812 goto error; 813 break; 814 case 's': 815 noreserve = B_TRUE; 816 break; 817 case ':': 818 (void) fprintf(stderr, gettext("missing size " 819 "argument\n")); 820 goto badusage; 821 case '?': 822 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 823 optopt); 824 goto badusage; 825 } 826 } 827 828 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 829 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 830 "used when creating a volume\n")); 831 goto badusage; 832 } 833 834 argc -= optind; 835 argv += optind; 836 837 /* check number of arguments */ 838 if (argc == 0) { 839 (void) fprintf(stderr, gettext("missing %s argument\n"), 840 zfs_type_to_name(type)); 841 goto badusage; 842 } 843 if (argc > 1) { 844 (void) fprintf(stderr, gettext("too many arguments\n")); 845 goto badusage; 846 } 847 848 if (type == ZFS_TYPE_VOLUME && !noreserve) { 849 zpool_handle_t *zpool_handle; 850 nvlist_t *real_props = NULL; 851 uint64_t spa_version; 852 char *p; 853 zfs_prop_t resv_prop; 854 char *strval; 855 char msg[1024]; 856 857 if ((p = strchr(argv[0], '/')) != NULL) 858 *p = '\0'; 859 zpool_handle = zpool_open(g_zfs, argv[0]); 860 if (p != NULL) 861 *p = '/'; 862 if (zpool_handle == NULL) 863 goto error; 864 spa_version = zpool_get_prop_int(zpool_handle, 865 ZPOOL_PROP_VERSION, NULL); 866 if (spa_version >= SPA_VERSION_REFRESERVATION) 867 resv_prop = ZFS_PROP_REFRESERVATION; 868 else 869 resv_prop = ZFS_PROP_RESERVATION; 870 871 (void) snprintf(msg, sizeof (msg), 872 gettext("cannot create '%s'"), argv[0]); 873 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 874 props, 0, NULL, zpool_handle, msg)) == NULL) { 875 zpool_close(zpool_handle); 876 goto error; 877 } 878 zpool_close(zpool_handle); 879 880 volsize = zvol_volsize_to_reservation(volsize, real_props); 881 nvlist_free(real_props); 882 883 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 884 &strval) != 0) { 885 if (nvlist_add_uint64(props, 886 zfs_prop_to_name(resv_prop), volsize) != 0) { 887 nvlist_free(props); 888 nomem(); 889 } 890 } 891 } 892 893 if (parents && zfs_name_valid(argv[0], type)) { 894 /* 895 * Now create the ancestors of target dataset. If the target 896 * already exists and '-p' option was used we should not 897 * complain. 898 */ 899 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 900 ret = 0; 901 goto error; 902 } 903 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 904 goto error; 905 } 906 907 /* pass to libzfs */ 908 if (zfs_create(g_zfs, argv[0], type, props) != 0) 909 goto error; 910 911 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 912 goto error; 913 914 ret = 0; 915 916 /* 917 * Mount and/or share the new filesystem as appropriate. We provide a 918 * verbose error message to let the user know that their filesystem was 919 * in fact created, even if we failed to mount or share it. 920 * If the user doesn't want the dataset automatically mounted, 921 * then skip the mount/share step altogether. 922 */ 923 if (should_auto_mount(zhp)) { 924 if (zfs_mount(zhp, NULL, 0) != 0) { 925 (void) fprintf(stderr, gettext("filesystem " 926 "successfully created, but not mounted\n")); 927 ret = 1; 928 } else if (zfs_share(zhp) != 0) { 929 (void) fprintf(stderr, gettext("filesystem " 930 "successfully created, but not shared\n")); 931 ret = 1; 932 } 933 } 934 935 error: 936 if (zhp) 937 zfs_close(zhp); 938 nvlist_free(props); 939 return (ret); 940 badusage: 941 nvlist_free(props); 942 usage(B_FALSE); 943 return (2); 944 } 945 946 /* 947 * zfs destroy [-rRf] <fs, vol> 948 * zfs destroy [-rRd] <snap> 949 * 950 * -r Recursively destroy all children 951 * -R Recursively destroy all dependents, including clones 952 * -f Force unmounting of any dependents 953 * -d If we can't destroy now, mark for deferred destruction 954 * 955 * Destroys the given dataset. By default, it will unmount any filesystems, 956 * and refuse to destroy a dataset that has any dependents. A dependent can 957 * either be a child, or a clone of a child. 958 */ 959 typedef struct destroy_cbdata { 960 boolean_t cb_first; 961 boolean_t cb_force; 962 boolean_t cb_recurse; 963 boolean_t cb_error; 964 boolean_t cb_doclones; 965 zfs_handle_t *cb_target; 966 boolean_t cb_defer_destroy; 967 boolean_t cb_verbose; 968 boolean_t cb_parsable; 969 boolean_t cb_dryrun; 970 nvlist_t *cb_nvl; 971 nvlist_t *cb_batchedsnaps; 972 973 /* first snap in contiguous run */ 974 char *cb_firstsnap; 975 /* previous snap in contiguous run */ 976 char *cb_prevsnap; 977 int64_t cb_snapused; 978 char *cb_snapspec; 979 char *cb_bookmark; 980 } destroy_cbdata_t; 981 982 /* 983 * Check for any dependents based on the '-r' or '-R' flags. 984 */ 985 static int 986 destroy_check_dependent(zfs_handle_t *zhp, void *data) 987 { 988 destroy_cbdata_t *cbp = data; 989 const char *tname = zfs_get_name(cbp->cb_target); 990 const char *name = zfs_get_name(zhp); 991 992 if (strncmp(tname, name, strlen(tname)) == 0 && 993 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 994 /* 995 * This is a direct descendant, not a clone somewhere else in 996 * the hierarchy. 997 */ 998 if (cbp->cb_recurse) 999 goto out; 1000 1001 if (cbp->cb_first) { 1002 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1003 "%s has children\n"), 1004 zfs_get_name(cbp->cb_target), 1005 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1006 (void) fprintf(stderr, gettext("use '-r' to destroy " 1007 "the following datasets:\n")); 1008 cbp->cb_first = B_FALSE; 1009 cbp->cb_error = B_TRUE; 1010 } 1011 1012 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1013 } else { 1014 /* 1015 * This is a clone. We only want to report this if the '-r' 1016 * wasn't specified, or the target is a snapshot. 1017 */ 1018 if (!cbp->cb_recurse && 1019 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1020 goto out; 1021 1022 if (cbp->cb_first) { 1023 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1024 "%s has dependent clones\n"), 1025 zfs_get_name(cbp->cb_target), 1026 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1027 (void) fprintf(stderr, gettext("use '-R' to destroy " 1028 "the following datasets:\n")); 1029 cbp->cb_first = B_FALSE; 1030 cbp->cb_error = B_TRUE; 1031 cbp->cb_dryrun = B_TRUE; 1032 } 1033 1034 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1035 } 1036 1037 out: 1038 zfs_close(zhp); 1039 return (0); 1040 } 1041 1042 static int 1043 destroy_callback(zfs_handle_t *zhp, void *data) 1044 { 1045 destroy_cbdata_t *cb = data; 1046 const char *name = zfs_get_name(zhp); 1047 1048 if (cb->cb_verbose) { 1049 if (cb->cb_parsable) { 1050 (void) printf("destroy\t%s\n", name); 1051 } else if (cb->cb_dryrun) { 1052 (void) printf(gettext("would destroy %s\n"), 1053 name); 1054 } else { 1055 (void) printf(gettext("will destroy %s\n"), 1056 name); 1057 } 1058 } 1059 1060 /* 1061 * Ignore pools (which we've already flagged as an error before getting 1062 * here). 1063 */ 1064 if (strchr(zfs_get_name(zhp), '/') == NULL && 1065 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1066 zfs_close(zhp); 1067 return (0); 1068 } 1069 if (cb->cb_dryrun) { 1070 zfs_close(zhp); 1071 return (0); 1072 } 1073 1074 /* 1075 * We batch up all contiguous snapshots (even of different 1076 * filesystems) and destroy them with one ioctl. We can't 1077 * simply do all snap deletions and then all fs deletions, 1078 * because we must delete a clone before its origin. 1079 */ 1080 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1081 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1082 } else { 1083 int error = zfs_destroy_snaps_nvl(g_zfs, 1084 cb->cb_batchedsnaps, B_FALSE); 1085 fnvlist_free(cb->cb_batchedsnaps); 1086 cb->cb_batchedsnaps = fnvlist_alloc(); 1087 1088 if (error != 0 || 1089 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1090 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1091 zfs_close(zhp); 1092 return (-1); 1093 } 1094 } 1095 1096 zfs_close(zhp); 1097 return (0); 1098 } 1099 1100 static int 1101 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1102 { 1103 destroy_cbdata_t *cb = arg; 1104 const char *name = zfs_get_name(zhp); 1105 int err = 0; 1106 1107 if (nvlist_exists(cb->cb_nvl, name)) { 1108 if (cb->cb_firstsnap == NULL) 1109 cb->cb_firstsnap = strdup(name); 1110 if (cb->cb_prevsnap != NULL) 1111 free(cb->cb_prevsnap); 1112 /* this snap continues the current range */ 1113 cb->cb_prevsnap = strdup(name); 1114 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1115 nomem(); 1116 if (cb->cb_verbose) { 1117 if (cb->cb_parsable) { 1118 (void) printf("destroy\t%s\n", name); 1119 } else if (cb->cb_dryrun) { 1120 (void) printf(gettext("would destroy %s\n"), 1121 name); 1122 } else { 1123 (void) printf(gettext("will destroy %s\n"), 1124 name); 1125 } 1126 } 1127 } else if (cb->cb_firstsnap != NULL) { 1128 /* end of this range */ 1129 uint64_t used = 0; 1130 err = lzc_snaprange_space(cb->cb_firstsnap, 1131 cb->cb_prevsnap, &used); 1132 cb->cb_snapused += used; 1133 free(cb->cb_firstsnap); 1134 cb->cb_firstsnap = NULL; 1135 free(cb->cb_prevsnap); 1136 cb->cb_prevsnap = NULL; 1137 } 1138 zfs_close(zhp); 1139 return (err); 1140 } 1141 1142 static int 1143 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1144 { 1145 int err = 0; 1146 assert(cb->cb_firstsnap == NULL); 1147 assert(cb->cb_prevsnap == NULL); 1148 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1149 if (cb->cb_firstsnap != NULL) { 1150 uint64_t used = 0; 1151 if (err == 0) { 1152 err = lzc_snaprange_space(cb->cb_firstsnap, 1153 cb->cb_prevsnap, &used); 1154 } 1155 cb->cb_snapused += used; 1156 free(cb->cb_firstsnap); 1157 cb->cb_firstsnap = NULL; 1158 free(cb->cb_prevsnap); 1159 cb->cb_prevsnap = NULL; 1160 } 1161 return (err); 1162 } 1163 1164 static int 1165 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1166 { 1167 destroy_cbdata_t *cb = arg; 1168 int err = 0; 1169 1170 /* Check for clones. */ 1171 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1172 cb->cb_target = zhp; 1173 cb->cb_first = B_TRUE; 1174 err = zfs_iter_dependents(zhp, B_TRUE, 1175 destroy_check_dependent, cb); 1176 } 1177 1178 if (err == 0) { 1179 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1180 nomem(); 1181 } 1182 zfs_close(zhp); 1183 return (err); 1184 } 1185 1186 static int 1187 gather_snapshots(zfs_handle_t *zhp, void *arg) 1188 { 1189 destroy_cbdata_t *cb = arg; 1190 int err = 0; 1191 1192 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1193 if (err == ENOENT) 1194 err = 0; 1195 if (err != 0) 1196 goto out; 1197 1198 if (cb->cb_verbose) { 1199 err = destroy_print_snapshots(zhp, cb); 1200 if (err != 0) 1201 goto out; 1202 } 1203 1204 if (cb->cb_recurse) 1205 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1206 1207 out: 1208 zfs_close(zhp); 1209 return (err); 1210 } 1211 1212 static int 1213 destroy_clones(destroy_cbdata_t *cb) 1214 { 1215 nvpair_t *pair; 1216 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1217 pair != NULL; 1218 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1219 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1220 ZFS_TYPE_SNAPSHOT); 1221 if (zhp != NULL) { 1222 boolean_t defer = cb->cb_defer_destroy; 1223 int err = 0; 1224 1225 /* 1226 * We can't defer destroy non-snapshots, so set it to 1227 * false while destroying the clones. 1228 */ 1229 cb->cb_defer_destroy = B_FALSE; 1230 err = zfs_iter_dependents(zhp, B_FALSE, 1231 destroy_callback, cb); 1232 cb->cb_defer_destroy = defer; 1233 zfs_close(zhp); 1234 if (err != 0) 1235 return (err); 1236 } 1237 } 1238 return (0); 1239 } 1240 1241 static int 1242 zfs_do_destroy(int argc, char **argv) 1243 { 1244 destroy_cbdata_t cb = { 0 }; 1245 int rv = 0; 1246 int err = 0; 1247 int c; 1248 zfs_handle_t *zhp = NULL; 1249 char *at, *pound; 1250 zfs_type_t type = ZFS_TYPE_DATASET; 1251 1252 /* check options */ 1253 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1254 switch (c) { 1255 case 'v': 1256 cb.cb_verbose = B_TRUE; 1257 break; 1258 case 'p': 1259 cb.cb_verbose = B_TRUE; 1260 cb.cb_parsable = B_TRUE; 1261 break; 1262 case 'n': 1263 cb.cb_dryrun = B_TRUE; 1264 break; 1265 case 'd': 1266 cb.cb_defer_destroy = B_TRUE; 1267 type = ZFS_TYPE_SNAPSHOT; 1268 break; 1269 case 'f': 1270 cb.cb_force = B_TRUE; 1271 break; 1272 case 'r': 1273 cb.cb_recurse = B_TRUE; 1274 break; 1275 case 'R': 1276 cb.cb_recurse = B_TRUE; 1277 cb.cb_doclones = B_TRUE; 1278 break; 1279 case '?': 1280 default: 1281 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1282 optopt); 1283 usage(B_FALSE); 1284 } 1285 } 1286 1287 argc -= optind; 1288 argv += optind; 1289 1290 /* check number of arguments */ 1291 if (argc == 0) { 1292 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1293 usage(B_FALSE); 1294 } 1295 if (argc > 1) { 1296 (void) fprintf(stderr, gettext("too many arguments\n")); 1297 usage(B_FALSE); 1298 } 1299 1300 at = strchr(argv[0], '@'); 1301 pound = strchr(argv[0], '#'); 1302 if (at != NULL) { 1303 1304 /* Build the list of snaps to destroy in cb_nvl. */ 1305 cb.cb_nvl = fnvlist_alloc(); 1306 1307 *at = '\0'; 1308 zhp = zfs_open(g_zfs, argv[0], 1309 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1310 if (zhp == NULL) 1311 return (1); 1312 1313 cb.cb_snapspec = at + 1; 1314 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1315 cb.cb_error) { 1316 rv = 1; 1317 goto out; 1318 } 1319 1320 if (nvlist_empty(cb.cb_nvl)) { 1321 (void) fprintf(stderr, gettext("could not find any " 1322 "snapshots to destroy; check snapshot names.\n")); 1323 rv = 1; 1324 goto out; 1325 } 1326 1327 if (cb.cb_verbose) { 1328 char buf[16]; 1329 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1330 if (cb.cb_parsable) { 1331 (void) printf("reclaim\t%llu\n", 1332 cb.cb_snapused); 1333 } else if (cb.cb_dryrun) { 1334 (void) printf(gettext("would reclaim %s\n"), 1335 buf); 1336 } else { 1337 (void) printf(gettext("will reclaim %s\n"), 1338 buf); 1339 } 1340 } 1341 1342 if (!cb.cb_dryrun) { 1343 if (cb.cb_doclones) { 1344 cb.cb_batchedsnaps = fnvlist_alloc(); 1345 err = destroy_clones(&cb); 1346 if (err == 0) { 1347 err = zfs_destroy_snaps_nvl(g_zfs, 1348 cb.cb_batchedsnaps, B_FALSE); 1349 } 1350 if (err != 0) { 1351 rv = 1; 1352 goto out; 1353 } 1354 } 1355 if (err == 0) { 1356 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1357 cb.cb_defer_destroy); 1358 } 1359 } 1360 1361 if (err != 0) 1362 rv = 1; 1363 } else if (pound != NULL) { 1364 int err; 1365 nvlist_t *nvl; 1366 1367 if (cb.cb_dryrun) { 1368 (void) fprintf(stderr, 1369 "dryrun is not supported with bookmark\n"); 1370 return (-1); 1371 } 1372 1373 if (cb.cb_defer_destroy) { 1374 (void) fprintf(stderr, 1375 "defer destroy is not supported with bookmark\n"); 1376 return (-1); 1377 } 1378 1379 if (cb.cb_recurse) { 1380 (void) fprintf(stderr, 1381 "recursive is not supported with bookmark\n"); 1382 return (-1); 1383 } 1384 1385 if (!zfs_bookmark_exists(argv[0])) { 1386 (void) fprintf(stderr, gettext("bookmark '%s' " 1387 "does not exist.\n"), argv[0]); 1388 return (1); 1389 } 1390 1391 nvl = fnvlist_alloc(); 1392 fnvlist_add_boolean(nvl, argv[0]); 1393 1394 err = lzc_destroy_bookmarks(nvl, NULL); 1395 if (err != 0) { 1396 (void) zfs_standard_error(g_zfs, err, 1397 "cannot destroy bookmark"); 1398 } 1399 1400 nvlist_free(cb.cb_nvl); 1401 1402 return (err); 1403 } else { 1404 /* Open the given dataset */ 1405 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1406 return (1); 1407 1408 cb.cb_target = zhp; 1409 1410 /* 1411 * Perform an explicit check for pools before going any further. 1412 */ 1413 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1414 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1415 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1416 "operation does not apply to pools\n"), 1417 zfs_get_name(zhp)); 1418 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1419 "%s' to destroy all datasets in the pool\n"), 1420 zfs_get_name(zhp)); 1421 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1422 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1423 rv = 1; 1424 goto out; 1425 } 1426 1427 /* 1428 * Check for any dependents and/or clones. 1429 */ 1430 cb.cb_first = B_TRUE; 1431 if (!cb.cb_doclones && 1432 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1433 &cb) != 0) { 1434 rv = 1; 1435 goto out; 1436 } 1437 1438 if (cb.cb_error) { 1439 rv = 1; 1440 goto out; 1441 } 1442 1443 cb.cb_batchedsnaps = fnvlist_alloc(); 1444 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1445 &cb) != 0) { 1446 rv = 1; 1447 goto out; 1448 } 1449 1450 /* 1451 * Do the real thing. The callback will close the 1452 * handle regardless of whether it succeeds or not. 1453 */ 1454 err = destroy_callback(zhp, &cb); 1455 zhp = NULL; 1456 if (err == 0) { 1457 err = zfs_destroy_snaps_nvl(g_zfs, 1458 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1459 } 1460 if (err != 0) 1461 rv = 1; 1462 } 1463 1464 out: 1465 fnvlist_free(cb.cb_batchedsnaps); 1466 fnvlist_free(cb.cb_nvl); 1467 if (zhp != NULL) 1468 zfs_close(zhp); 1469 return (rv); 1470 } 1471 1472 static boolean_t 1473 is_recvd_column(zprop_get_cbdata_t *cbp) 1474 { 1475 int i; 1476 zfs_get_column_t col; 1477 1478 for (i = 0; i < ZFS_GET_NCOLS && 1479 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1480 if (col == GET_COL_RECVD) 1481 return (B_TRUE); 1482 return (B_FALSE); 1483 } 1484 1485 /* 1486 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1487 * < all | property[,property]... > < fs | snap | vol > ... 1488 * 1489 * -r recurse over any child datasets 1490 * -H scripted mode. Headers are stripped, and fields are separated 1491 * by tabs instead of spaces. 1492 * -o Set of fields to display. One of "name,property,value, 1493 * received,source". Default is "name,property,value,source". 1494 * "all" is an alias for all five. 1495 * -s Set of sources to allow. One of 1496 * "local,default,inherited,received,temporary,none". Default is 1497 * all six. 1498 * -p Display values in parsable (literal) format. 1499 * 1500 * Prints properties for the given datasets. The user can control which 1501 * columns to display as well as which property types to allow. 1502 */ 1503 1504 /* 1505 * Invoked to display the properties for a single dataset. 1506 */ 1507 static int 1508 get_callback(zfs_handle_t *zhp, void *data) 1509 { 1510 char buf[ZFS_MAXPROPLEN]; 1511 char rbuf[ZFS_MAXPROPLEN]; 1512 zprop_source_t sourcetype; 1513 char source[ZFS_MAX_DATASET_NAME_LEN]; 1514 zprop_get_cbdata_t *cbp = data; 1515 nvlist_t *user_props = zfs_get_user_props(zhp); 1516 zprop_list_t *pl = cbp->cb_proplist; 1517 nvlist_t *propval; 1518 char *strval; 1519 char *sourceval; 1520 boolean_t received = is_recvd_column(cbp); 1521 1522 for (; pl != NULL; pl = pl->pl_next) { 1523 char *recvdval = NULL; 1524 /* 1525 * Skip the special fake placeholder. This will also skip over 1526 * the name property when 'all' is specified. 1527 */ 1528 if (pl->pl_prop == ZFS_PROP_NAME && 1529 pl == cbp->cb_proplist) 1530 continue; 1531 1532 if (pl->pl_prop != ZPROP_INVAL) { 1533 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1534 sizeof (buf), &sourcetype, source, 1535 sizeof (source), 1536 cbp->cb_literal) != 0) { 1537 if (pl->pl_all) 1538 continue; 1539 if (!zfs_prop_valid_for_type(pl->pl_prop, 1540 ZFS_TYPE_DATASET)) { 1541 (void) fprintf(stderr, 1542 gettext("No such property '%s'\n"), 1543 zfs_prop_to_name(pl->pl_prop)); 1544 continue; 1545 } 1546 sourcetype = ZPROP_SRC_NONE; 1547 (void) strlcpy(buf, "-", sizeof (buf)); 1548 } 1549 1550 if (received && (zfs_prop_get_recvd(zhp, 1551 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1552 cbp->cb_literal) == 0)) 1553 recvdval = rbuf; 1554 1555 zprop_print_one_property(zfs_get_name(zhp), cbp, 1556 zfs_prop_to_name(pl->pl_prop), 1557 buf, sourcetype, source, recvdval); 1558 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1559 sourcetype = ZPROP_SRC_LOCAL; 1560 1561 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1562 buf, sizeof (buf), cbp->cb_literal) != 0) { 1563 sourcetype = ZPROP_SRC_NONE; 1564 (void) strlcpy(buf, "-", sizeof (buf)); 1565 } 1566 1567 zprop_print_one_property(zfs_get_name(zhp), cbp, 1568 pl->pl_user_prop, buf, sourcetype, source, NULL); 1569 } else if (zfs_prop_written(pl->pl_user_prop)) { 1570 sourcetype = ZPROP_SRC_LOCAL; 1571 1572 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1573 buf, sizeof (buf), cbp->cb_literal) != 0) { 1574 sourcetype = ZPROP_SRC_NONE; 1575 (void) strlcpy(buf, "-", sizeof (buf)); 1576 } 1577 1578 zprop_print_one_property(zfs_get_name(zhp), cbp, 1579 pl->pl_user_prop, buf, sourcetype, source, NULL); 1580 } else { 1581 if (nvlist_lookup_nvlist(user_props, 1582 pl->pl_user_prop, &propval) != 0) { 1583 if (pl->pl_all) 1584 continue; 1585 sourcetype = ZPROP_SRC_NONE; 1586 strval = "-"; 1587 } else { 1588 verify(nvlist_lookup_string(propval, 1589 ZPROP_VALUE, &strval) == 0); 1590 verify(nvlist_lookup_string(propval, 1591 ZPROP_SOURCE, &sourceval) == 0); 1592 1593 if (strcmp(sourceval, 1594 zfs_get_name(zhp)) == 0) { 1595 sourcetype = ZPROP_SRC_LOCAL; 1596 } else if (strcmp(sourceval, 1597 ZPROP_SOURCE_VAL_RECVD) == 0) { 1598 sourcetype = ZPROP_SRC_RECEIVED; 1599 } else { 1600 sourcetype = ZPROP_SRC_INHERITED; 1601 (void) strlcpy(source, 1602 sourceval, sizeof (source)); 1603 } 1604 } 1605 1606 if (received && (zfs_prop_get_recvd(zhp, 1607 pl->pl_user_prop, rbuf, sizeof (rbuf), 1608 cbp->cb_literal) == 0)) 1609 recvdval = rbuf; 1610 1611 zprop_print_one_property(zfs_get_name(zhp), cbp, 1612 pl->pl_user_prop, strval, sourcetype, 1613 source, recvdval); 1614 } 1615 } 1616 1617 return (0); 1618 } 1619 1620 static int 1621 zfs_do_get(int argc, char **argv) 1622 { 1623 zprop_get_cbdata_t cb = { 0 }; 1624 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1625 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1626 char *value, *fields; 1627 int ret = 0; 1628 int limit = 0; 1629 zprop_list_t fake_name = { 0 }; 1630 1631 /* 1632 * Set up default columns and sources. 1633 */ 1634 cb.cb_sources = ZPROP_SRC_ALL; 1635 cb.cb_columns[0] = GET_COL_NAME; 1636 cb.cb_columns[1] = GET_COL_PROPERTY; 1637 cb.cb_columns[2] = GET_COL_VALUE; 1638 cb.cb_columns[3] = GET_COL_SOURCE; 1639 cb.cb_type = ZFS_TYPE_DATASET; 1640 1641 /* check options */ 1642 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1643 switch (c) { 1644 case 'p': 1645 cb.cb_literal = B_TRUE; 1646 break; 1647 case 'd': 1648 limit = parse_depth(optarg, &flags); 1649 break; 1650 case 'r': 1651 flags |= ZFS_ITER_RECURSE; 1652 break; 1653 case 'H': 1654 cb.cb_scripted = B_TRUE; 1655 break; 1656 case ':': 1657 (void) fprintf(stderr, gettext("missing argument for " 1658 "'%c' option\n"), optopt); 1659 usage(B_FALSE); 1660 break; 1661 case 'o': 1662 /* 1663 * Process the set of columns to display. We zero out 1664 * the structure to give us a blank slate. 1665 */ 1666 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1667 i = 0; 1668 while (*optarg != '\0') { 1669 static char *col_subopts[] = 1670 { "name", "property", "value", "received", 1671 "source", "all", NULL }; 1672 1673 if (i == ZFS_GET_NCOLS) { 1674 (void) fprintf(stderr, gettext("too " 1675 "many fields given to -o " 1676 "option\n")); 1677 usage(B_FALSE); 1678 } 1679 1680 switch (getsubopt(&optarg, col_subopts, 1681 &value)) { 1682 case 0: 1683 cb.cb_columns[i++] = GET_COL_NAME; 1684 break; 1685 case 1: 1686 cb.cb_columns[i++] = GET_COL_PROPERTY; 1687 break; 1688 case 2: 1689 cb.cb_columns[i++] = GET_COL_VALUE; 1690 break; 1691 case 3: 1692 cb.cb_columns[i++] = GET_COL_RECVD; 1693 flags |= ZFS_ITER_RECVD_PROPS; 1694 break; 1695 case 4: 1696 cb.cb_columns[i++] = GET_COL_SOURCE; 1697 break; 1698 case 5: 1699 if (i > 0) { 1700 (void) fprintf(stderr, 1701 gettext("\"all\" conflicts " 1702 "with specific fields " 1703 "given to -o option\n")); 1704 usage(B_FALSE); 1705 } 1706 cb.cb_columns[0] = GET_COL_NAME; 1707 cb.cb_columns[1] = GET_COL_PROPERTY; 1708 cb.cb_columns[2] = GET_COL_VALUE; 1709 cb.cb_columns[3] = GET_COL_RECVD; 1710 cb.cb_columns[4] = GET_COL_SOURCE; 1711 flags |= ZFS_ITER_RECVD_PROPS; 1712 i = ZFS_GET_NCOLS; 1713 break; 1714 default: 1715 (void) fprintf(stderr, 1716 gettext("invalid column name " 1717 "'%s'\n"), value); 1718 usage(B_FALSE); 1719 } 1720 } 1721 break; 1722 1723 case 's': 1724 cb.cb_sources = 0; 1725 while (*optarg != '\0') { 1726 static char *source_subopts[] = { 1727 "local", "default", "inherited", 1728 "received", "temporary", "none", 1729 NULL }; 1730 1731 switch (getsubopt(&optarg, source_subopts, 1732 &value)) { 1733 case 0: 1734 cb.cb_sources |= ZPROP_SRC_LOCAL; 1735 break; 1736 case 1: 1737 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1738 break; 1739 case 2: 1740 cb.cb_sources |= ZPROP_SRC_INHERITED; 1741 break; 1742 case 3: 1743 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1744 break; 1745 case 4: 1746 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1747 break; 1748 case 5: 1749 cb.cb_sources |= ZPROP_SRC_NONE; 1750 break; 1751 default: 1752 (void) fprintf(stderr, 1753 gettext("invalid source " 1754 "'%s'\n"), value); 1755 usage(B_FALSE); 1756 } 1757 } 1758 break; 1759 1760 case 't': 1761 types = 0; 1762 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1763 while (*optarg != '\0') { 1764 static char *type_subopts[] = { "filesystem", 1765 "volume", "snapshot", "bookmark", 1766 "all", NULL }; 1767 1768 switch (getsubopt(&optarg, type_subopts, 1769 &value)) { 1770 case 0: 1771 types |= ZFS_TYPE_FILESYSTEM; 1772 break; 1773 case 1: 1774 types |= ZFS_TYPE_VOLUME; 1775 break; 1776 case 2: 1777 types |= ZFS_TYPE_SNAPSHOT; 1778 break; 1779 case 3: 1780 types |= ZFS_TYPE_BOOKMARK; 1781 break; 1782 case 4: 1783 types = ZFS_TYPE_DATASET | 1784 ZFS_TYPE_BOOKMARK; 1785 break; 1786 1787 default: 1788 (void) fprintf(stderr, 1789 gettext("invalid type '%s'\n"), 1790 value); 1791 usage(B_FALSE); 1792 } 1793 } 1794 break; 1795 1796 case '?': 1797 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1798 optopt); 1799 usage(B_FALSE); 1800 } 1801 } 1802 1803 argc -= optind; 1804 argv += optind; 1805 1806 if (argc < 1) { 1807 (void) fprintf(stderr, gettext("missing property " 1808 "argument\n")); 1809 usage(B_FALSE); 1810 } 1811 1812 fields = argv[0]; 1813 1814 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1815 != 0) 1816 usage(B_FALSE); 1817 1818 argc--; 1819 argv++; 1820 1821 /* 1822 * As part of zfs_expand_proplist(), we keep track of the maximum column 1823 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1824 * need to know the maximum name length. However, the user likely did 1825 * not specify 'name' as one of the properties to fetch, so we need to 1826 * make sure we always include at least this property for 1827 * print_get_headers() to work properly. 1828 */ 1829 if (cb.cb_proplist != NULL) { 1830 fake_name.pl_prop = ZFS_PROP_NAME; 1831 fake_name.pl_width = strlen(gettext("NAME")); 1832 fake_name.pl_next = cb.cb_proplist; 1833 cb.cb_proplist = &fake_name; 1834 } 1835 1836 cb.cb_first = B_TRUE; 1837 1838 /* run for each object */ 1839 ret = zfs_for_each(argc, argv, flags, types, NULL, 1840 &cb.cb_proplist, limit, get_callback, &cb); 1841 1842 if (cb.cb_proplist == &fake_name) 1843 zprop_free_list(fake_name.pl_next); 1844 else 1845 zprop_free_list(cb.cb_proplist); 1846 1847 return (ret); 1848 } 1849 1850 /* 1851 * inherit [-rS] <property> <fs|vol> ... 1852 * 1853 * -r Recurse over all children 1854 * -S Revert to received value, if any 1855 * 1856 * For each dataset specified on the command line, inherit the given property 1857 * from its parent. Inheriting a property at the pool level will cause it to 1858 * use the default value. The '-r' flag will recurse over all children, and is 1859 * useful for setting a property on a hierarchy-wide basis, regardless of any 1860 * local modifications for each dataset. 1861 */ 1862 1863 typedef struct inherit_cbdata { 1864 const char *cb_propname; 1865 boolean_t cb_received; 1866 } inherit_cbdata_t; 1867 1868 static int 1869 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1870 { 1871 inherit_cbdata_t *cb = data; 1872 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1873 1874 /* 1875 * If we're doing it recursively, then ignore properties that 1876 * are not valid for this type of dataset. 1877 */ 1878 if (prop != ZPROP_INVAL && 1879 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1880 return (0); 1881 1882 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1883 } 1884 1885 static int 1886 inherit_cb(zfs_handle_t *zhp, void *data) 1887 { 1888 inherit_cbdata_t *cb = data; 1889 1890 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1891 } 1892 1893 static int 1894 zfs_do_inherit(int argc, char **argv) 1895 { 1896 int c; 1897 zfs_prop_t prop; 1898 inherit_cbdata_t cb = { 0 }; 1899 char *propname; 1900 int ret = 0; 1901 int flags = 0; 1902 boolean_t received = B_FALSE; 1903 1904 /* check options */ 1905 while ((c = getopt(argc, argv, "rS")) != -1) { 1906 switch (c) { 1907 case 'r': 1908 flags |= ZFS_ITER_RECURSE; 1909 break; 1910 case 'S': 1911 received = B_TRUE; 1912 break; 1913 case '?': 1914 default: 1915 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1916 optopt); 1917 usage(B_FALSE); 1918 } 1919 } 1920 1921 argc -= optind; 1922 argv += optind; 1923 1924 /* check number of arguments */ 1925 if (argc < 1) { 1926 (void) fprintf(stderr, gettext("missing property argument\n")); 1927 usage(B_FALSE); 1928 } 1929 if (argc < 2) { 1930 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1931 usage(B_FALSE); 1932 } 1933 1934 propname = argv[0]; 1935 argc--; 1936 argv++; 1937 1938 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1939 if (zfs_prop_readonly(prop)) { 1940 (void) fprintf(stderr, gettext( 1941 "%s property is read-only\n"), 1942 propname); 1943 return (1); 1944 } 1945 if (!zfs_prop_inheritable(prop) && !received) { 1946 (void) fprintf(stderr, gettext("'%s' property cannot " 1947 "be inherited\n"), propname); 1948 if (prop == ZFS_PROP_QUOTA || 1949 prop == ZFS_PROP_RESERVATION || 1950 prop == ZFS_PROP_REFQUOTA || 1951 prop == ZFS_PROP_REFRESERVATION) { 1952 (void) fprintf(stderr, gettext("use 'zfs set " 1953 "%s=none' to clear\n"), propname); 1954 (void) fprintf(stderr, gettext("use 'zfs " 1955 "inherit -S %s' to revert to received " 1956 "value\n"), propname); 1957 } 1958 return (1); 1959 } 1960 if (received && (prop == ZFS_PROP_VOLSIZE || 1961 prop == ZFS_PROP_VERSION)) { 1962 (void) fprintf(stderr, gettext("'%s' property cannot " 1963 "be reverted to a received value\n"), propname); 1964 return (1); 1965 } 1966 } else if (!zfs_prop_user(propname)) { 1967 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1968 propname); 1969 usage(B_FALSE); 1970 } 1971 1972 cb.cb_propname = propname; 1973 cb.cb_received = received; 1974 1975 if (flags & ZFS_ITER_RECURSE) { 1976 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1977 NULL, NULL, 0, inherit_recurse_cb, &cb); 1978 } else { 1979 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1980 NULL, NULL, 0, inherit_cb, &cb); 1981 } 1982 1983 return (ret); 1984 } 1985 1986 typedef struct upgrade_cbdata { 1987 uint64_t cb_numupgraded; 1988 uint64_t cb_numsamegraded; 1989 uint64_t cb_numfailed; 1990 uint64_t cb_version; 1991 boolean_t cb_newer; 1992 boolean_t cb_foundone; 1993 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 1994 } upgrade_cbdata_t; 1995 1996 static int 1997 same_pool(zfs_handle_t *zhp, const char *name) 1998 { 1999 int len1 = strcspn(name, "/@"); 2000 const char *zhname = zfs_get_name(zhp); 2001 int len2 = strcspn(zhname, "/@"); 2002 2003 if (len1 != len2) 2004 return (B_FALSE); 2005 return (strncmp(name, zhname, len1) == 0); 2006 } 2007 2008 static int 2009 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2010 { 2011 upgrade_cbdata_t *cb = data; 2012 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2013 2014 /* list if it's old/new */ 2015 if ((!cb->cb_newer && version < ZPL_VERSION) || 2016 (cb->cb_newer && version > ZPL_VERSION)) { 2017 char *str; 2018 if (cb->cb_newer) { 2019 str = gettext("The following filesystems are " 2020 "formatted using a newer software version and\n" 2021 "cannot be accessed on the current system.\n\n"); 2022 } else { 2023 str = gettext("The following filesystems are " 2024 "out of date, and can be upgraded. After being\n" 2025 "upgraded, these filesystems (and any 'zfs send' " 2026 "streams generated from\n" 2027 "subsequent snapshots) will no longer be " 2028 "accessible by older software versions.\n\n"); 2029 } 2030 2031 if (!cb->cb_foundone) { 2032 (void) puts(str); 2033 (void) printf(gettext("VER FILESYSTEM\n")); 2034 (void) printf(gettext("--- ------------\n")); 2035 cb->cb_foundone = B_TRUE; 2036 } 2037 2038 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2039 } 2040 2041 return (0); 2042 } 2043 2044 static int 2045 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2046 { 2047 upgrade_cbdata_t *cb = data; 2048 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2049 int needed_spa_version; 2050 int spa_version; 2051 2052 if (zfs_spa_version(zhp, &spa_version) < 0) 2053 return (-1); 2054 2055 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2056 2057 if (needed_spa_version < 0) 2058 return (-1); 2059 2060 if (spa_version < needed_spa_version) { 2061 /* can't upgrade */ 2062 (void) printf(gettext("%s: can not be " 2063 "upgraded; the pool version needs to first " 2064 "be upgraded\nto version %d\n\n"), 2065 zfs_get_name(zhp), needed_spa_version); 2066 cb->cb_numfailed++; 2067 return (0); 2068 } 2069 2070 /* upgrade */ 2071 if (version < cb->cb_version) { 2072 char verstr[16]; 2073 (void) snprintf(verstr, sizeof (verstr), 2074 "%llu", cb->cb_version); 2075 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2076 /* 2077 * If they did "zfs upgrade -a", then we could 2078 * be doing ioctls to different pools. We need 2079 * to log this history once to each pool, and bypass 2080 * the normal history logging that happens in main(). 2081 */ 2082 (void) zpool_log_history(g_zfs, history_str); 2083 log_history = B_FALSE; 2084 } 2085 if (zfs_prop_set(zhp, "version", verstr) == 0) 2086 cb->cb_numupgraded++; 2087 else 2088 cb->cb_numfailed++; 2089 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2090 } else if (version > cb->cb_version) { 2091 /* can't downgrade */ 2092 (void) printf(gettext("%s: can not be downgraded; " 2093 "it is already at version %u\n"), 2094 zfs_get_name(zhp), version); 2095 cb->cb_numfailed++; 2096 } else { 2097 cb->cb_numsamegraded++; 2098 } 2099 return (0); 2100 } 2101 2102 /* 2103 * zfs upgrade 2104 * zfs upgrade -v 2105 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2106 */ 2107 static int 2108 zfs_do_upgrade(int argc, char **argv) 2109 { 2110 boolean_t all = B_FALSE; 2111 boolean_t showversions = B_FALSE; 2112 int ret = 0; 2113 upgrade_cbdata_t cb = { 0 }; 2114 char c; 2115 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2116 2117 /* check options */ 2118 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2119 switch (c) { 2120 case 'r': 2121 flags |= ZFS_ITER_RECURSE; 2122 break; 2123 case 'v': 2124 showversions = B_TRUE; 2125 break; 2126 case 'V': 2127 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2128 optarg, &cb.cb_version) != 0) { 2129 (void) fprintf(stderr, 2130 gettext("invalid version %s\n"), optarg); 2131 usage(B_FALSE); 2132 } 2133 break; 2134 case 'a': 2135 all = B_TRUE; 2136 break; 2137 case '?': 2138 default: 2139 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2140 optopt); 2141 usage(B_FALSE); 2142 } 2143 } 2144 2145 argc -= optind; 2146 argv += optind; 2147 2148 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2149 usage(B_FALSE); 2150 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2151 cb.cb_version || argc)) 2152 usage(B_FALSE); 2153 if ((all || argc) && (showversions)) 2154 usage(B_FALSE); 2155 if (all && argc) 2156 usage(B_FALSE); 2157 2158 if (showversions) { 2159 /* Show info on available versions. */ 2160 (void) printf(gettext("The following filesystem versions are " 2161 "supported:\n\n")); 2162 (void) printf(gettext("VER DESCRIPTION\n")); 2163 (void) printf("--- -----------------------------------------" 2164 "---------------\n"); 2165 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2166 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2167 (void) printf(gettext(" 3 Case insensitive and filesystem " 2168 "user identifier (FUID)\n")); 2169 (void) printf(gettext(" 4 userquota, groupquota " 2170 "properties\n")); 2171 (void) printf(gettext(" 5 System attributes\n")); 2172 (void) printf(gettext("\nFor more information on a particular " 2173 "version, including supported releases,\n")); 2174 (void) printf("see the ZFS Administration Guide.\n\n"); 2175 ret = 0; 2176 } else if (argc || all) { 2177 /* Upgrade filesystems */ 2178 if (cb.cb_version == 0) 2179 cb.cb_version = ZPL_VERSION; 2180 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2181 NULL, NULL, 0, upgrade_set_callback, &cb); 2182 (void) printf(gettext("%llu filesystems upgraded\n"), 2183 cb.cb_numupgraded); 2184 if (cb.cb_numsamegraded) { 2185 (void) printf(gettext("%llu filesystems already at " 2186 "this version\n"), 2187 cb.cb_numsamegraded); 2188 } 2189 if (cb.cb_numfailed != 0) 2190 ret = 1; 2191 } else { 2192 /* List old-version filesystems */ 2193 boolean_t found; 2194 (void) printf(gettext("This system is currently running " 2195 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2196 2197 flags |= ZFS_ITER_RECURSE; 2198 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2199 NULL, NULL, 0, upgrade_list_callback, &cb); 2200 2201 found = cb.cb_foundone; 2202 cb.cb_foundone = B_FALSE; 2203 cb.cb_newer = B_TRUE; 2204 2205 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2206 NULL, NULL, 0, upgrade_list_callback, &cb); 2207 2208 if (!cb.cb_foundone && !found) { 2209 (void) printf(gettext("All filesystems are " 2210 "formatted with the current version.\n")); 2211 } 2212 } 2213 2214 return (ret); 2215 } 2216 2217 /* 2218 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2219 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2220 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2221 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2222 * 2223 * -H Scripted mode; elide headers and separate columns by tabs. 2224 * -i Translate SID to POSIX ID. 2225 * -n Print numeric ID instead of user/group name. 2226 * -o Control which fields to display. 2227 * -p Use exact (parsable) numeric output. 2228 * -s Specify sort columns, descending order. 2229 * -S Specify sort columns, ascending order. 2230 * -t Control which object types to display. 2231 * 2232 * Displays space consumed by, and quotas on, each user in the specified 2233 * filesystem or snapshot. 2234 */ 2235 2236 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2237 enum us_field_types { 2238 USFIELD_TYPE, 2239 USFIELD_NAME, 2240 USFIELD_USED, 2241 USFIELD_QUOTA 2242 }; 2243 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2244 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2245 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2246 2247 #define USTYPE_PSX_GRP (1 << 0) 2248 #define USTYPE_PSX_USR (1 << 1) 2249 #define USTYPE_SMB_GRP (1 << 2) 2250 #define USTYPE_SMB_USR (1 << 3) 2251 #define USTYPE_ALL \ 2252 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2253 2254 static int us_type_bits[] = { 2255 USTYPE_PSX_GRP, 2256 USTYPE_PSX_USR, 2257 USTYPE_SMB_GRP, 2258 USTYPE_SMB_USR, 2259 USTYPE_ALL 2260 }; 2261 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2262 "smbuser", "all" }; 2263 2264 typedef struct us_node { 2265 nvlist_t *usn_nvl; 2266 uu_avl_node_t usn_avlnode; 2267 uu_list_node_t usn_listnode; 2268 } us_node_t; 2269 2270 typedef struct us_cbdata { 2271 nvlist_t **cb_nvlp; 2272 uu_avl_pool_t *cb_avl_pool; 2273 uu_avl_t *cb_avl; 2274 boolean_t cb_numname; 2275 boolean_t cb_nicenum; 2276 boolean_t cb_sid2posix; 2277 zfs_userquota_prop_t cb_prop; 2278 zfs_sort_column_t *cb_sortcol; 2279 size_t cb_width[USFIELD_LAST]; 2280 } us_cbdata_t; 2281 2282 static boolean_t us_populated = B_FALSE; 2283 2284 typedef struct { 2285 zfs_sort_column_t *si_sortcol; 2286 boolean_t si_numname; 2287 } us_sort_info_t; 2288 2289 static int 2290 us_field_index(char *field) 2291 { 2292 int i; 2293 2294 for (i = 0; i < USFIELD_LAST; i++) { 2295 if (strcmp(field, us_field_names[i]) == 0) 2296 return (i); 2297 } 2298 2299 return (-1); 2300 } 2301 2302 static int 2303 us_compare(const void *larg, const void *rarg, void *unused) 2304 { 2305 const us_node_t *l = larg; 2306 const us_node_t *r = rarg; 2307 us_sort_info_t *si = (us_sort_info_t *)unused; 2308 zfs_sort_column_t *sortcol = si->si_sortcol; 2309 boolean_t numname = si->si_numname; 2310 nvlist_t *lnvl = l->usn_nvl; 2311 nvlist_t *rnvl = r->usn_nvl; 2312 int rc = 0; 2313 boolean_t lvb, rvb; 2314 2315 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2316 char *lvstr = ""; 2317 char *rvstr = ""; 2318 uint32_t lv32 = 0; 2319 uint32_t rv32 = 0; 2320 uint64_t lv64 = 0; 2321 uint64_t rv64 = 0; 2322 zfs_prop_t prop = sortcol->sc_prop; 2323 const char *propname = NULL; 2324 boolean_t reverse = sortcol->sc_reverse; 2325 2326 switch (prop) { 2327 case ZFS_PROP_TYPE: 2328 propname = "type"; 2329 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2330 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2331 if (rv32 != lv32) 2332 rc = (rv32 < lv32) ? 1 : -1; 2333 break; 2334 case ZFS_PROP_NAME: 2335 propname = "name"; 2336 if (numname) { 2337 (void) nvlist_lookup_uint64(lnvl, propname, 2338 &lv64); 2339 (void) nvlist_lookup_uint64(rnvl, propname, 2340 &rv64); 2341 if (rv64 != lv64) 2342 rc = (rv64 < lv64) ? 1 : -1; 2343 } else { 2344 (void) nvlist_lookup_string(lnvl, propname, 2345 &lvstr); 2346 (void) nvlist_lookup_string(rnvl, propname, 2347 &rvstr); 2348 rc = strcmp(lvstr, rvstr); 2349 } 2350 break; 2351 case ZFS_PROP_USED: 2352 case ZFS_PROP_QUOTA: 2353 if (!us_populated) 2354 break; 2355 if (prop == ZFS_PROP_USED) 2356 propname = "used"; 2357 else 2358 propname = "quota"; 2359 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2360 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2361 if (rv64 != lv64) 2362 rc = (rv64 < lv64) ? 1 : -1; 2363 break; 2364 2365 default: 2366 break; 2367 } 2368 2369 if (rc != 0) { 2370 if (rc < 0) 2371 return (reverse ? 1 : -1); 2372 else 2373 return (reverse ? -1 : 1); 2374 } 2375 } 2376 2377 /* 2378 * If entries still seem to be the same, check if they are of the same 2379 * type (smbentity is added only if we are doing SID to POSIX ID 2380 * translation where we can have duplicate type/name combinations). 2381 */ 2382 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2383 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2384 lvb != rvb) 2385 return (lvb < rvb ? -1 : 1); 2386 2387 return (0); 2388 } 2389 2390 static inline const char * 2391 us_type2str(unsigned field_type) 2392 { 2393 switch (field_type) { 2394 case USTYPE_PSX_USR: 2395 return ("POSIX User"); 2396 case USTYPE_PSX_GRP: 2397 return ("POSIX Group"); 2398 case USTYPE_SMB_USR: 2399 return ("SMB User"); 2400 case USTYPE_SMB_GRP: 2401 return ("SMB Group"); 2402 default: 2403 return ("Undefined"); 2404 } 2405 } 2406 2407 static int 2408 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2409 { 2410 us_cbdata_t *cb = (us_cbdata_t *)arg; 2411 zfs_userquota_prop_t prop = cb->cb_prop; 2412 char *name = NULL; 2413 char *propname; 2414 char sizebuf[32]; 2415 us_node_t *node; 2416 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2417 uu_avl_t *avl = cb->cb_avl; 2418 uu_avl_index_t idx; 2419 nvlist_t *props; 2420 us_node_t *n; 2421 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2422 unsigned type = 0; 2423 const char *typestr; 2424 size_t namelen; 2425 size_t typelen; 2426 size_t sizelen; 2427 int typeidx, nameidx, sizeidx; 2428 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2429 boolean_t smbentity = B_FALSE; 2430 2431 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2432 nomem(); 2433 node = safe_malloc(sizeof (us_node_t)); 2434 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2435 node->usn_nvl = props; 2436 2437 if (domain != NULL && domain[0] != '\0') { 2438 /* SMB */ 2439 char sid[MAXNAMELEN + 32]; 2440 uid_t id; 2441 int err; 2442 int flag = IDMAP_REQ_FLG_USE_CACHE; 2443 2444 smbentity = B_TRUE; 2445 2446 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2447 2448 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2449 type = USTYPE_SMB_GRP; 2450 err = sid_to_id(sid, B_FALSE, &id); 2451 } else { 2452 type = USTYPE_SMB_USR; 2453 err = sid_to_id(sid, B_TRUE, &id); 2454 } 2455 2456 if (err == 0) { 2457 rid = id; 2458 if (!cb->cb_sid2posix) { 2459 if (type == USTYPE_SMB_USR) { 2460 (void) idmap_getwinnamebyuid(rid, flag, 2461 &name, NULL); 2462 } else { 2463 (void) idmap_getwinnamebygid(rid, flag, 2464 &name, NULL); 2465 } 2466 if (name == NULL) 2467 name = sid; 2468 } 2469 } 2470 } 2471 2472 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2473 /* POSIX or -i */ 2474 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2475 type = USTYPE_PSX_GRP; 2476 if (!cb->cb_numname) { 2477 struct group *g; 2478 2479 if ((g = getgrgid(rid)) != NULL) 2480 name = g->gr_name; 2481 } 2482 } else { 2483 type = USTYPE_PSX_USR; 2484 if (!cb->cb_numname) { 2485 struct passwd *p; 2486 2487 if ((p = getpwuid(rid)) != NULL) 2488 name = p->pw_name; 2489 } 2490 } 2491 } 2492 2493 /* 2494 * Make sure that the type/name combination is unique when doing 2495 * SID to POSIX ID translation (hence changing the type from SMB to 2496 * POSIX). 2497 */ 2498 if (cb->cb_sid2posix && 2499 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2500 nomem(); 2501 2502 /* Calculate/update width of TYPE field */ 2503 typestr = us_type2str(type); 2504 typelen = strlen(gettext(typestr)); 2505 typeidx = us_field_index("type"); 2506 if (typelen > cb->cb_width[typeidx]) 2507 cb->cb_width[typeidx] = typelen; 2508 if (nvlist_add_uint32(props, "type", type) != 0) 2509 nomem(); 2510 2511 /* Calculate/update width of NAME field */ 2512 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2513 if (nvlist_add_uint64(props, "name", rid) != 0) 2514 nomem(); 2515 namelen = snprintf(NULL, 0, "%u", rid); 2516 } else { 2517 if (nvlist_add_string(props, "name", name) != 0) 2518 nomem(); 2519 namelen = strlen(name); 2520 } 2521 nameidx = us_field_index("name"); 2522 if (namelen > cb->cb_width[nameidx]) 2523 cb->cb_width[nameidx] = namelen; 2524 2525 /* 2526 * Check if this type/name combination is in the list and update it; 2527 * otherwise add new node to the list. 2528 */ 2529 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2530 uu_avl_insert(avl, node, idx); 2531 } else { 2532 nvlist_free(props); 2533 free(node); 2534 node = n; 2535 props = node->usn_nvl; 2536 } 2537 2538 /* Calculate/update width of USED/QUOTA fields */ 2539 if (cb->cb_nicenum) 2540 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2541 else 2542 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2543 sizelen = strlen(sizebuf); 2544 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2545 propname = "used"; 2546 if (!nvlist_exists(props, "quota")) 2547 (void) nvlist_add_uint64(props, "quota", 0); 2548 } else { 2549 propname = "quota"; 2550 if (!nvlist_exists(props, "used")) 2551 (void) nvlist_add_uint64(props, "used", 0); 2552 } 2553 sizeidx = us_field_index(propname); 2554 if (sizelen > cb->cb_width[sizeidx]) 2555 cb->cb_width[sizeidx] = sizelen; 2556 2557 if (nvlist_add_uint64(props, propname, space) != 0) 2558 nomem(); 2559 2560 return (0); 2561 } 2562 2563 static void 2564 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2565 size_t *width, us_node_t *node) 2566 { 2567 nvlist_t *nvl = node->usn_nvl; 2568 char valstr[MAXNAMELEN]; 2569 boolean_t first = B_TRUE; 2570 int cfield = 0; 2571 int field; 2572 uint32_t ustype; 2573 2574 /* Check type */ 2575 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2576 if (!(ustype & types)) 2577 return; 2578 2579 while ((field = fields[cfield]) != USFIELD_LAST) { 2580 nvpair_t *nvp = NULL; 2581 data_type_t type; 2582 uint32_t val32; 2583 uint64_t val64; 2584 char *strval = NULL; 2585 2586 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2587 if (strcmp(nvpair_name(nvp), 2588 us_field_names[field]) == 0) 2589 break; 2590 } 2591 2592 type = nvpair_type(nvp); 2593 switch (type) { 2594 case DATA_TYPE_UINT32: 2595 (void) nvpair_value_uint32(nvp, &val32); 2596 break; 2597 case DATA_TYPE_UINT64: 2598 (void) nvpair_value_uint64(nvp, &val64); 2599 break; 2600 case DATA_TYPE_STRING: 2601 (void) nvpair_value_string(nvp, &strval); 2602 break; 2603 default: 2604 (void) fprintf(stderr, "invalid data type\n"); 2605 } 2606 2607 switch (field) { 2608 case USFIELD_TYPE: 2609 strval = (char *)us_type2str(val32); 2610 break; 2611 case USFIELD_NAME: 2612 if (type == DATA_TYPE_UINT64) { 2613 (void) sprintf(valstr, "%llu", val64); 2614 strval = valstr; 2615 } 2616 break; 2617 case USFIELD_USED: 2618 case USFIELD_QUOTA: 2619 if (type == DATA_TYPE_UINT64) { 2620 if (parsable) { 2621 (void) sprintf(valstr, "%llu", val64); 2622 } else { 2623 zfs_nicenum(val64, valstr, 2624 sizeof (valstr)); 2625 } 2626 if (field == USFIELD_QUOTA && 2627 strcmp(valstr, "0") == 0) 2628 strval = "none"; 2629 else 2630 strval = valstr; 2631 } 2632 break; 2633 } 2634 2635 if (!first) { 2636 if (scripted) 2637 (void) printf("\t"); 2638 else 2639 (void) printf(" "); 2640 } 2641 if (scripted) 2642 (void) printf("%s", strval); 2643 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2644 (void) printf("%-*s", width[field], strval); 2645 else 2646 (void) printf("%*s", width[field], strval); 2647 2648 first = B_FALSE; 2649 cfield++; 2650 } 2651 2652 (void) printf("\n"); 2653 } 2654 2655 static void 2656 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2657 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2658 { 2659 us_node_t *node; 2660 const char *col; 2661 int cfield = 0; 2662 int field; 2663 2664 if (!scripted) { 2665 boolean_t first = B_TRUE; 2666 2667 while ((field = fields[cfield]) != USFIELD_LAST) { 2668 col = gettext(us_field_hdr[field]); 2669 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2670 (void) printf(first ? "%-*s" : " %-*s", 2671 width[field], col); 2672 } else { 2673 (void) printf(first ? "%*s" : " %*s", 2674 width[field], col); 2675 } 2676 first = B_FALSE; 2677 cfield++; 2678 } 2679 (void) printf("\n"); 2680 } 2681 2682 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2683 print_us_node(scripted, parsable, fields, types, width, node); 2684 if (rmnode) 2685 nvlist_free(node->usn_nvl); 2686 } 2687 } 2688 2689 static int 2690 zfs_do_userspace(int argc, char **argv) 2691 { 2692 zfs_handle_t *zhp; 2693 zfs_userquota_prop_t p; 2694 uu_avl_pool_t *avl_pool; 2695 uu_avl_t *avl_tree; 2696 uu_avl_walk_t *walk; 2697 char *delim; 2698 char deffields[] = "type,name,used,quota"; 2699 char *ofield = NULL; 2700 char *tfield = NULL; 2701 int cfield = 0; 2702 int fields[256]; 2703 int i; 2704 boolean_t scripted = B_FALSE; 2705 boolean_t prtnum = B_FALSE; 2706 boolean_t parsable = B_FALSE; 2707 boolean_t sid2posix = B_FALSE; 2708 int ret = 0; 2709 int c; 2710 zfs_sort_column_t *sortcol = NULL; 2711 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2712 us_cbdata_t cb; 2713 us_node_t *node; 2714 us_node_t *rmnode; 2715 uu_list_pool_t *listpool; 2716 uu_list_t *list; 2717 uu_avl_index_t idx = 0; 2718 uu_list_index_t idx2 = 0; 2719 2720 if (argc < 2) 2721 usage(B_FALSE); 2722 2723 if (strcmp(argv[0], "groupspace") == 0) 2724 /* Toggle default group types */ 2725 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2726 2727 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2728 switch (c) { 2729 case 'n': 2730 prtnum = B_TRUE; 2731 break; 2732 case 'H': 2733 scripted = B_TRUE; 2734 break; 2735 case 'p': 2736 parsable = B_TRUE; 2737 break; 2738 case 'o': 2739 ofield = optarg; 2740 break; 2741 case 's': 2742 case 'S': 2743 if (zfs_add_sort_column(&sortcol, optarg, 2744 c == 's' ? B_FALSE : B_TRUE) != 0) { 2745 (void) fprintf(stderr, 2746 gettext("invalid field '%s'\n"), optarg); 2747 usage(B_FALSE); 2748 } 2749 break; 2750 case 't': 2751 tfield = optarg; 2752 break; 2753 case 'i': 2754 sid2posix = B_TRUE; 2755 break; 2756 case ':': 2757 (void) fprintf(stderr, gettext("missing argument for " 2758 "'%c' option\n"), optopt); 2759 usage(B_FALSE); 2760 break; 2761 case '?': 2762 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2763 optopt); 2764 usage(B_FALSE); 2765 } 2766 } 2767 2768 argc -= optind; 2769 argv += optind; 2770 2771 if (argc < 1) { 2772 (void) fprintf(stderr, gettext("missing dataset name\n")); 2773 usage(B_FALSE); 2774 } 2775 if (argc > 1) { 2776 (void) fprintf(stderr, gettext("too many arguments\n")); 2777 usage(B_FALSE); 2778 } 2779 2780 /* Use default output fields if not specified using -o */ 2781 if (ofield == NULL) 2782 ofield = deffields; 2783 do { 2784 if ((delim = strchr(ofield, ',')) != NULL) 2785 *delim = '\0'; 2786 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2787 (void) fprintf(stderr, gettext("invalid type '%s' " 2788 "for -o option\n"), ofield); 2789 return (-1); 2790 } 2791 if (delim != NULL) 2792 ofield = delim + 1; 2793 } while (delim != NULL); 2794 fields[cfield] = USFIELD_LAST; 2795 2796 /* Override output types (-t option) */ 2797 if (tfield != NULL) { 2798 types = 0; 2799 2800 do { 2801 boolean_t found = B_FALSE; 2802 2803 if ((delim = strchr(tfield, ',')) != NULL) 2804 *delim = '\0'; 2805 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2806 i++) { 2807 if (strcmp(tfield, us_type_names[i]) == 0) { 2808 found = B_TRUE; 2809 types |= us_type_bits[i]; 2810 break; 2811 } 2812 } 2813 if (!found) { 2814 (void) fprintf(stderr, gettext("invalid type " 2815 "'%s' for -t option\n"), tfield); 2816 return (-1); 2817 } 2818 if (delim != NULL) 2819 tfield = delim + 1; 2820 } while (delim != NULL); 2821 } 2822 2823 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2824 return (1); 2825 2826 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2827 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2828 nomem(); 2829 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2830 nomem(); 2831 2832 /* Always add default sorting columns */ 2833 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2834 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2835 2836 cb.cb_sortcol = sortcol; 2837 cb.cb_numname = prtnum; 2838 cb.cb_nicenum = !parsable; 2839 cb.cb_avl_pool = avl_pool; 2840 cb.cb_avl = avl_tree; 2841 cb.cb_sid2posix = sid2posix; 2842 2843 for (i = 0; i < USFIELD_LAST; i++) 2844 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2845 2846 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2847 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2848 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2849 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2850 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2851 continue; 2852 cb.cb_prop = p; 2853 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2854 return (ret); 2855 } 2856 2857 /* Sort the list */ 2858 if ((node = uu_avl_first(avl_tree)) == NULL) 2859 return (0); 2860 2861 us_populated = B_TRUE; 2862 2863 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2864 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2865 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2866 uu_list_node_init(node, &node->usn_listnode, listpool); 2867 2868 while (node != NULL) { 2869 rmnode = node; 2870 node = uu_avl_next(avl_tree, node); 2871 uu_avl_remove(avl_tree, rmnode); 2872 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2873 uu_list_insert(list, rmnode, idx2); 2874 } 2875 2876 for (node = uu_list_first(list); node != NULL; 2877 node = uu_list_next(list, node)) { 2878 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2879 2880 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2881 uu_avl_insert(avl_tree, node, idx); 2882 } 2883 2884 uu_list_destroy(list); 2885 uu_list_pool_destroy(listpool); 2886 2887 /* Print and free node nvlist memory */ 2888 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2889 cb.cb_avl); 2890 2891 zfs_free_sort_columns(sortcol); 2892 2893 /* Clean up the AVL tree */ 2894 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2895 nomem(); 2896 2897 while ((node = uu_avl_walk_next(walk)) != NULL) { 2898 uu_avl_remove(cb.cb_avl, node); 2899 free(node); 2900 } 2901 2902 uu_avl_walk_end(walk); 2903 uu_avl_destroy(avl_tree); 2904 uu_avl_pool_destroy(avl_pool); 2905 2906 return (ret); 2907 } 2908 2909 /* 2910 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2911 * [-t type[,...]] [filesystem|volume|snapshot] ... 2912 * 2913 * -H Scripted mode; elide headers and separate columns by tabs. 2914 * -p Display values in parsable (literal) format. 2915 * -r Recurse over all children. 2916 * -d Limit recursion by depth. 2917 * -o Control which fields to display. 2918 * -s Specify sort columns, descending order. 2919 * -S Specify sort columns, ascending order. 2920 * -t Control which object types to display. 2921 * 2922 * When given no arguments, list all filesystems in the system. 2923 * Otherwise, list the specified datasets, optionally recursing down them if 2924 * '-r' is specified. 2925 */ 2926 typedef struct list_cbdata { 2927 boolean_t cb_first; 2928 boolean_t cb_literal; 2929 boolean_t cb_scripted; 2930 zprop_list_t *cb_proplist; 2931 } list_cbdata_t; 2932 2933 /* 2934 * Given a list of columns to display, output appropriate headers for each one. 2935 */ 2936 static void 2937 print_header(list_cbdata_t *cb) 2938 { 2939 zprop_list_t *pl = cb->cb_proplist; 2940 char headerbuf[ZFS_MAXPROPLEN]; 2941 const char *header; 2942 int i; 2943 boolean_t first = B_TRUE; 2944 boolean_t right_justify; 2945 2946 for (; pl != NULL; pl = pl->pl_next) { 2947 if (!first) { 2948 (void) printf(" "); 2949 } else { 2950 first = B_FALSE; 2951 } 2952 2953 right_justify = B_FALSE; 2954 if (pl->pl_prop != ZPROP_INVAL) { 2955 header = zfs_prop_column_name(pl->pl_prop); 2956 right_justify = zfs_prop_align_right(pl->pl_prop); 2957 } else { 2958 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2959 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2960 headerbuf[i] = '\0'; 2961 header = headerbuf; 2962 } 2963 2964 if (pl->pl_next == NULL && !right_justify) 2965 (void) printf("%s", header); 2966 else if (right_justify) 2967 (void) printf("%*s", pl->pl_width, header); 2968 else 2969 (void) printf("%-*s", pl->pl_width, header); 2970 } 2971 2972 (void) printf("\n"); 2973 } 2974 2975 /* 2976 * Given a dataset and a list of fields, print out all the properties according 2977 * to the described layout. 2978 */ 2979 static void 2980 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2981 { 2982 zprop_list_t *pl = cb->cb_proplist; 2983 boolean_t first = B_TRUE; 2984 char property[ZFS_MAXPROPLEN]; 2985 nvlist_t *userprops = zfs_get_user_props(zhp); 2986 nvlist_t *propval; 2987 char *propstr; 2988 boolean_t right_justify; 2989 2990 for (; pl != NULL; pl = pl->pl_next) { 2991 if (!first) { 2992 if (cb->cb_scripted) 2993 (void) printf("\t"); 2994 else 2995 (void) printf(" "); 2996 } else { 2997 first = B_FALSE; 2998 } 2999 3000 if (pl->pl_prop == ZFS_PROP_NAME) { 3001 (void) strlcpy(property, zfs_get_name(zhp), 3002 sizeof (property)); 3003 propstr = property; 3004 right_justify = zfs_prop_align_right(pl->pl_prop); 3005 } else if (pl->pl_prop != ZPROP_INVAL) { 3006 if (zfs_prop_get(zhp, pl->pl_prop, property, 3007 sizeof (property), NULL, NULL, 0, 3008 cb->cb_literal) != 0) 3009 propstr = "-"; 3010 else 3011 propstr = property; 3012 right_justify = zfs_prop_align_right(pl->pl_prop); 3013 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3014 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3015 property, sizeof (property), cb->cb_literal) != 0) 3016 propstr = "-"; 3017 else 3018 propstr = property; 3019 right_justify = B_TRUE; 3020 } else if (zfs_prop_written(pl->pl_user_prop)) { 3021 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3022 property, sizeof (property), cb->cb_literal) != 0) 3023 propstr = "-"; 3024 else 3025 propstr = property; 3026 right_justify = B_TRUE; 3027 } else { 3028 if (nvlist_lookup_nvlist(userprops, 3029 pl->pl_user_prop, &propval) != 0) 3030 propstr = "-"; 3031 else 3032 verify(nvlist_lookup_string(propval, 3033 ZPROP_VALUE, &propstr) == 0); 3034 right_justify = B_FALSE; 3035 } 3036 3037 /* 3038 * If this is being called in scripted mode, or if this is the 3039 * last column and it is left-justified, don't include a width 3040 * format specifier. 3041 */ 3042 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3043 (void) printf("%s", propstr); 3044 else if (right_justify) 3045 (void) printf("%*s", pl->pl_width, propstr); 3046 else 3047 (void) printf("%-*s", pl->pl_width, propstr); 3048 } 3049 3050 (void) printf("\n"); 3051 } 3052 3053 /* 3054 * Generic callback function to list a dataset or snapshot. 3055 */ 3056 static int 3057 list_callback(zfs_handle_t *zhp, void *data) 3058 { 3059 list_cbdata_t *cbp = data; 3060 3061 if (cbp->cb_first) { 3062 if (!cbp->cb_scripted) 3063 print_header(cbp); 3064 cbp->cb_first = B_FALSE; 3065 } 3066 3067 print_dataset(zhp, cbp); 3068 3069 return (0); 3070 } 3071 3072 static int 3073 zfs_do_list(int argc, char **argv) 3074 { 3075 int c; 3076 static char default_fields[] = 3077 "name,used,available,referenced,mountpoint"; 3078 int types = ZFS_TYPE_DATASET; 3079 boolean_t types_specified = B_FALSE; 3080 char *fields = NULL; 3081 list_cbdata_t cb = { 0 }; 3082 char *value; 3083 int limit = 0; 3084 int ret = 0; 3085 zfs_sort_column_t *sortcol = NULL; 3086 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3087 3088 /* check options */ 3089 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3090 switch (c) { 3091 case 'o': 3092 fields = optarg; 3093 break; 3094 case 'p': 3095 cb.cb_literal = B_TRUE; 3096 flags |= ZFS_ITER_LITERAL_PROPS; 3097 break; 3098 case 'd': 3099 limit = parse_depth(optarg, &flags); 3100 break; 3101 case 'r': 3102 flags |= ZFS_ITER_RECURSE; 3103 break; 3104 case 'H': 3105 cb.cb_scripted = B_TRUE; 3106 break; 3107 case 's': 3108 if (zfs_add_sort_column(&sortcol, optarg, 3109 B_FALSE) != 0) { 3110 (void) fprintf(stderr, 3111 gettext("invalid property '%s'\n"), optarg); 3112 usage(B_FALSE); 3113 } 3114 break; 3115 case 'S': 3116 if (zfs_add_sort_column(&sortcol, optarg, 3117 B_TRUE) != 0) { 3118 (void) fprintf(stderr, 3119 gettext("invalid property '%s'\n"), optarg); 3120 usage(B_FALSE); 3121 } 3122 break; 3123 case 't': 3124 types = 0; 3125 types_specified = B_TRUE; 3126 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3127 while (*optarg != '\0') { 3128 static char *type_subopts[] = { "filesystem", 3129 "volume", "snapshot", "snap", "bookmark", 3130 "all", NULL }; 3131 3132 switch (getsubopt(&optarg, type_subopts, 3133 &value)) { 3134 case 0: 3135 types |= ZFS_TYPE_FILESYSTEM; 3136 break; 3137 case 1: 3138 types |= ZFS_TYPE_VOLUME; 3139 break; 3140 case 2: 3141 case 3: 3142 types |= ZFS_TYPE_SNAPSHOT; 3143 break; 3144 case 4: 3145 types |= ZFS_TYPE_BOOKMARK; 3146 break; 3147 case 5: 3148 types = ZFS_TYPE_DATASET | 3149 ZFS_TYPE_BOOKMARK; 3150 break; 3151 default: 3152 (void) fprintf(stderr, 3153 gettext("invalid type '%s'\n"), 3154 value); 3155 usage(B_FALSE); 3156 } 3157 } 3158 break; 3159 case ':': 3160 (void) fprintf(stderr, gettext("missing argument for " 3161 "'%c' option\n"), optopt); 3162 usage(B_FALSE); 3163 break; 3164 case '?': 3165 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3166 optopt); 3167 usage(B_FALSE); 3168 } 3169 } 3170 3171 argc -= optind; 3172 argv += optind; 3173 3174 if (fields == NULL) 3175 fields = default_fields; 3176 3177 /* 3178 * If we are only going to list snapshot names and sort by name, 3179 * then we can use faster version. 3180 */ 3181 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3182 flags |= ZFS_ITER_SIMPLE; 3183 3184 /* 3185 * If "-o space" and no types were specified, don't display snapshots. 3186 */ 3187 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3188 types &= ~ZFS_TYPE_SNAPSHOT; 3189 3190 /* 3191 * If the user specifies '-o all', the zprop_get_list() doesn't 3192 * normally include the name of the dataset. For 'zfs list', we always 3193 * want this property to be first. 3194 */ 3195 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3196 != 0) 3197 usage(B_FALSE); 3198 3199 cb.cb_first = B_TRUE; 3200 3201 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3202 limit, list_callback, &cb); 3203 3204 zprop_free_list(cb.cb_proplist); 3205 zfs_free_sort_columns(sortcol); 3206 3207 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3208 (void) printf(gettext("no datasets available\n")); 3209 3210 return (ret); 3211 } 3212 3213 /* 3214 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3215 * zfs rename [-f] -p <fs | vol> <fs | vol> 3216 * zfs rename -r <snap> <snap> 3217 * 3218 * Renames the given dataset to another of the same type. 3219 * 3220 * The '-p' flag creates all the non-existing ancestors of the target first. 3221 */ 3222 /* ARGSUSED */ 3223 static int 3224 zfs_do_rename(int argc, char **argv) 3225 { 3226 zfs_handle_t *zhp; 3227 int c; 3228 int ret = 0; 3229 boolean_t recurse = B_FALSE; 3230 boolean_t parents = B_FALSE; 3231 boolean_t force_unmount = B_FALSE; 3232 3233 /* check options */ 3234 while ((c = getopt(argc, argv, "prf")) != -1) { 3235 switch (c) { 3236 case 'p': 3237 parents = B_TRUE; 3238 break; 3239 case 'r': 3240 recurse = B_TRUE; 3241 break; 3242 case 'f': 3243 force_unmount = B_TRUE; 3244 break; 3245 case '?': 3246 default: 3247 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3248 optopt); 3249 usage(B_FALSE); 3250 } 3251 } 3252 3253 argc -= optind; 3254 argv += optind; 3255 3256 /* check number of arguments */ 3257 if (argc < 1) { 3258 (void) fprintf(stderr, gettext("missing source dataset " 3259 "argument\n")); 3260 usage(B_FALSE); 3261 } 3262 if (argc < 2) { 3263 (void) fprintf(stderr, gettext("missing target dataset " 3264 "argument\n")); 3265 usage(B_FALSE); 3266 } 3267 if (argc > 2) { 3268 (void) fprintf(stderr, gettext("too many arguments\n")); 3269 usage(B_FALSE); 3270 } 3271 3272 if (recurse && parents) { 3273 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3274 "exclusive\n")); 3275 usage(B_FALSE); 3276 } 3277 3278 if (recurse && strchr(argv[0], '@') == 0) { 3279 (void) fprintf(stderr, gettext("source dataset for recursive " 3280 "rename must be a snapshot\n")); 3281 usage(B_FALSE); 3282 } 3283 3284 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3285 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3286 return (1); 3287 3288 /* If we were asked and the name looks good, try to create ancestors. */ 3289 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3290 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3291 zfs_close(zhp); 3292 return (1); 3293 } 3294 3295 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3296 3297 zfs_close(zhp); 3298 return (ret); 3299 } 3300 3301 /* 3302 * zfs promote <fs> 3303 * 3304 * Promotes the given clone fs to be the parent 3305 */ 3306 /* ARGSUSED */ 3307 static int 3308 zfs_do_promote(int argc, char **argv) 3309 { 3310 zfs_handle_t *zhp; 3311 int ret = 0; 3312 3313 /* check options */ 3314 if (argc > 1 && argv[1][0] == '-') { 3315 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3316 argv[1][1]); 3317 usage(B_FALSE); 3318 } 3319 3320 /* check number of arguments */ 3321 if (argc < 2) { 3322 (void) fprintf(stderr, gettext("missing clone filesystem" 3323 " argument\n")); 3324 usage(B_FALSE); 3325 } 3326 if (argc > 2) { 3327 (void) fprintf(stderr, gettext("too many arguments\n")); 3328 usage(B_FALSE); 3329 } 3330 3331 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3332 if (zhp == NULL) 3333 return (1); 3334 3335 ret = (zfs_promote(zhp) != 0); 3336 3337 3338 zfs_close(zhp); 3339 return (ret); 3340 } 3341 3342 /* 3343 * zfs rollback [-rRf] <snapshot> 3344 * 3345 * -r Delete any intervening snapshots before doing rollback 3346 * -R Delete any snapshots and their clones 3347 * -f ignored for backwards compatability 3348 * 3349 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3350 * since then and making it the active dataset. If more recent snapshots exist, 3351 * the command will complain unless the '-r' flag is given. 3352 */ 3353 typedef struct rollback_cbdata { 3354 uint64_t cb_create; 3355 boolean_t cb_first; 3356 int cb_doclones; 3357 char *cb_target; 3358 int cb_error; 3359 boolean_t cb_recurse; 3360 } rollback_cbdata_t; 3361 3362 static int 3363 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3364 { 3365 rollback_cbdata_t *cbp = data; 3366 3367 if (cbp->cb_first && cbp->cb_recurse) { 3368 (void) fprintf(stderr, gettext("cannot rollback to " 3369 "'%s': clones of previous snapshots exist\n"), 3370 cbp->cb_target); 3371 (void) fprintf(stderr, gettext("use '-R' to " 3372 "force deletion of the following clones and " 3373 "dependents:\n")); 3374 cbp->cb_first = 0; 3375 cbp->cb_error = 1; 3376 } 3377 3378 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3379 3380 zfs_close(zhp); 3381 return (0); 3382 } 3383 3384 /* 3385 * Report any snapshots more recent than the one specified. Used when '-r' is 3386 * not specified. We reuse this same callback for the snapshot dependents - if 3387 * 'cb_dependent' is set, then this is a dependent and we should report it 3388 * without checking the transaction group. 3389 */ 3390 static int 3391 rollback_check(zfs_handle_t *zhp, void *data) 3392 { 3393 rollback_cbdata_t *cbp = data; 3394 3395 if (cbp->cb_doclones) { 3396 zfs_close(zhp); 3397 return (0); 3398 } 3399 3400 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3401 if (cbp->cb_first && !cbp->cb_recurse) { 3402 (void) fprintf(stderr, gettext("cannot " 3403 "rollback to '%s': more recent snapshots " 3404 "or bookmarks exist\n"), 3405 cbp->cb_target); 3406 (void) fprintf(stderr, gettext("use '-r' to " 3407 "force deletion of the following " 3408 "snapshots and bookmarks:\n")); 3409 cbp->cb_first = 0; 3410 cbp->cb_error = 1; 3411 } 3412 3413 if (cbp->cb_recurse) { 3414 if (zfs_iter_dependents(zhp, B_TRUE, 3415 rollback_check_dependent, cbp) != 0) { 3416 zfs_close(zhp); 3417 return (-1); 3418 } 3419 } else { 3420 (void) fprintf(stderr, "%s\n", 3421 zfs_get_name(zhp)); 3422 } 3423 } 3424 zfs_close(zhp); 3425 return (0); 3426 } 3427 3428 static int 3429 zfs_do_rollback(int argc, char **argv) 3430 { 3431 int ret = 0; 3432 int c; 3433 boolean_t force = B_FALSE; 3434 rollback_cbdata_t cb = { 0 }; 3435 zfs_handle_t *zhp, *snap; 3436 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3437 char *delim; 3438 3439 /* check options */ 3440 while ((c = getopt(argc, argv, "rRf")) != -1) { 3441 switch (c) { 3442 case 'r': 3443 cb.cb_recurse = 1; 3444 break; 3445 case 'R': 3446 cb.cb_recurse = 1; 3447 cb.cb_doclones = 1; 3448 break; 3449 case 'f': 3450 force = B_TRUE; 3451 break; 3452 case '?': 3453 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3454 optopt); 3455 usage(B_FALSE); 3456 } 3457 } 3458 3459 argc -= optind; 3460 argv += optind; 3461 3462 /* check number of arguments */ 3463 if (argc < 1) { 3464 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3465 usage(B_FALSE); 3466 } 3467 if (argc > 1) { 3468 (void) fprintf(stderr, gettext("too many arguments\n")); 3469 usage(B_FALSE); 3470 } 3471 3472 /* open the snapshot */ 3473 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3474 return (1); 3475 3476 /* open the parent dataset */ 3477 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3478 verify((delim = strrchr(parentname, '@')) != NULL); 3479 *delim = '\0'; 3480 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3481 zfs_close(snap); 3482 return (1); 3483 } 3484 3485 /* 3486 * Check for more recent snapshots and/or clones based on the presence 3487 * of '-r' and '-R'. 3488 */ 3489 cb.cb_target = argv[0]; 3490 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3491 cb.cb_first = B_TRUE; 3492 cb.cb_error = 0; 3493 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3494 goto out; 3495 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3496 goto out; 3497 3498 if ((ret = cb.cb_error) != 0) 3499 goto out; 3500 3501 /* 3502 * Rollback parent to the given snapshot. 3503 */ 3504 ret = zfs_rollback(zhp, snap, force); 3505 3506 out: 3507 zfs_close(snap); 3508 zfs_close(zhp); 3509 3510 if (ret == 0) 3511 return (0); 3512 else 3513 return (1); 3514 } 3515 3516 /* 3517 * zfs set property=value ... { fs | snap | vol } ... 3518 * 3519 * Sets the given properties for all datasets specified on the command line. 3520 */ 3521 3522 static int 3523 set_callback(zfs_handle_t *zhp, void *data) 3524 { 3525 nvlist_t *props = data; 3526 3527 if (zfs_prop_set_list(zhp, props) != 0) { 3528 switch (libzfs_errno(g_zfs)) { 3529 case EZFS_MOUNTFAILED: 3530 (void) fprintf(stderr, gettext("property may be set " 3531 "but unable to remount filesystem\n")); 3532 break; 3533 case EZFS_SHARENFSFAILED: 3534 (void) fprintf(stderr, gettext("property may be set " 3535 "but unable to reshare filesystem\n")); 3536 break; 3537 } 3538 return (1); 3539 } 3540 return (0); 3541 } 3542 3543 static int 3544 zfs_do_set(int argc, char **argv) 3545 { 3546 nvlist_t *props = NULL; 3547 int ds_start = -1; /* argv idx of first dataset arg */ 3548 int ret = 0; 3549 3550 /* check for options */ 3551 if (argc > 1 && argv[1][0] == '-') { 3552 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3553 argv[1][1]); 3554 usage(B_FALSE); 3555 } 3556 3557 /* check number of arguments */ 3558 if (argc < 2) { 3559 (void) fprintf(stderr, gettext("missing arguments\n")); 3560 usage(B_FALSE); 3561 } 3562 if (argc < 3) { 3563 if (strchr(argv[1], '=') == NULL) { 3564 (void) fprintf(stderr, gettext("missing property=value " 3565 "argument(s)\n")); 3566 } else { 3567 (void) fprintf(stderr, gettext("missing dataset " 3568 "name(s)\n")); 3569 } 3570 usage(B_FALSE); 3571 } 3572 3573 /* validate argument order: prop=val args followed by dataset args */ 3574 for (int i = 1; i < argc; i++) { 3575 if (strchr(argv[i], '=') != NULL) { 3576 if (ds_start > 0) { 3577 /* out-of-order prop=val argument */ 3578 (void) fprintf(stderr, gettext("invalid " 3579 "argument order\n"), i); 3580 usage(B_FALSE); 3581 } 3582 } else if (ds_start < 0) { 3583 ds_start = i; 3584 } 3585 } 3586 if (ds_start < 0) { 3587 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3588 usage(B_FALSE); 3589 } 3590 3591 /* Populate a list of property settings */ 3592 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3593 nomem(); 3594 for (int i = 1; i < ds_start; i++) { 3595 if ((ret = parseprop(props, argv[i])) != 0) 3596 goto error; 3597 } 3598 3599 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3600 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3601 3602 error: 3603 nvlist_free(props); 3604 return (ret); 3605 } 3606 3607 typedef struct snap_cbdata { 3608 nvlist_t *sd_nvl; 3609 boolean_t sd_recursive; 3610 const char *sd_snapname; 3611 } snap_cbdata_t; 3612 3613 static int 3614 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3615 { 3616 snap_cbdata_t *sd = arg; 3617 char *name; 3618 int rv = 0; 3619 int error; 3620 3621 if (sd->sd_recursive && 3622 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3623 zfs_close(zhp); 3624 return (0); 3625 } 3626 3627 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3628 if (error == -1) 3629 nomem(); 3630 fnvlist_add_boolean(sd->sd_nvl, name); 3631 free(name); 3632 3633 if (sd->sd_recursive) 3634 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3635 zfs_close(zhp); 3636 return (rv); 3637 } 3638 3639 /* 3640 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3641 * 3642 * Creates a snapshot with the given name. While functionally equivalent to 3643 * 'zfs create', it is a separate command to differentiate intent. 3644 */ 3645 static int 3646 zfs_do_snapshot(int argc, char **argv) 3647 { 3648 int ret = 0; 3649 char c; 3650 nvlist_t *props; 3651 snap_cbdata_t sd = { 0 }; 3652 boolean_t multiple_snaps = B_FALSE; 3653 3654 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3655 nomem(); 3656 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3657 nomem(); 3658 3659 /* check options */ 3660 while ((c = getopt(argc, argv, "ro:")) != -1) { 3661 switch (c) { 3662 case 'o': 3663 if (parseprop(props, optarg) != 0) 3664 return (1); 3665 break; 3666 case 'r': 3667 sd.sd_recursive = B_TRUE; 3668 multiple_snaps = B_TRUE; 3669 break; 3670 case '?': 3671 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3672 optopt); 3673 goto usage; 3674 } 3675 } 3676 3677 argc -= optind; 3678 argv += optind; 3679 3680 /* check number of arguments */ 3681 if (argc < 1) { 3682 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3683 goto usage; 3684 } 3685 3686 if (argc > 1) 3687 multiple_snaps = B_TRUE; 3688 for (; argc > 0; argc--, argv++) { 3689 char *atp; 3690 zfs_handle_t *zhp; 3691 3692 atp = strchr(argv[0], '@'); 3693 if (atp == NULL) 3694 goto usage; 3695 *atp = '\0'; 3696 sd.sd_snapname = atp + 1; 3697 zhp = zfs_open(g_zfs, argv[0], 3698 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3699 if (zhp == NULL) 3700 goto usage; 3701 if (zfs_snapshot_cb(zhp, &sd) != 0) 3702 goto usage; 3703 } 3704 3705 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3706 nvlist_free(sd.sd_nvl); 3707 nvlist_free(props); 3708 if (ret != 0 && multiple_snaps) 3709 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3710 return (ret != 0); 3711 3712 usage: 3713 nvlist_free(sd.sd_nvl); 3714 nvlist_free(props); 3715 usage(B_FALSE); 3716 return (-1); 3717 } 3718 3719 /* 3720 * Send a backup stream to stdout. 3721 */ 3722 static int 3723 zfs_do_send(int argc, char **argv) 3724 { 3725 char *fromname = NULL; 3726 char *toname = NULL; 3727 char *resume_token = NULL; 3728 char *cp; 3729 zfs_handle_t *zhp; 3730 sendflags_t flags = { 0 }; 3731 int c, err; 3732 nvlist_t *dbgnv = NULL; 3733 boolean_t extraverbose = B_FALSE; 3734 3735 struct option long_options[] = { 3736 {"replicate", no_argument, NULL, 'R'}, 3737 {"props", no_argument, NULL, 'p'}, 3738 {"parsable", no_argument, NULL, 'P'}, 3739 {"dedup", no_argument, NULL, 'D'}, 3740 {"verbose", no_argument, NULL, 'v'}, 3741 {"dryrun", no_argument, NULL, 'n'}, 3742 {"large-block", no_argument, NULL, 'L'}, 3743 {"embed", no_argument, NULL, 'e'}, 3744 {"resume", required_argument, NULL, 't'}, 3745 {"compressed", no_argument, NULL, 'c'}, 3746 {0, 0, 0, 0} 3747 }; 3748 3749 /* check options */ 3750 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options, 3751 NULL)) != -1) { 3752 switch (c) { 3753 case 'i': 3754 if (fromname) 3755 usage(B_FALSE); 3756 fromname = optarg; 3757 break; 3758 case 'I': 3759 if (fromname) 3760 usage(B_FALSE); 3761 fromname = optarg; 3762 flags.doall = B_TRUE; 3763 break; 3764 case 'R': 3765 flags.replicate = B_TRUE; 3766 break; 3767 case 'p': 3768 flags.props = B_TRUE; 3769 break; 3770 case 'P': 3771 flags.parsable = B_TRUE; 3772 flags.verbose = B_TRUE; 3773 break; 3774 case 'v': 3775 if (flags.verbose) 3776 extraverbose = B_TRUE; 3777 flags.verbose = B_TRUE; 3778 flags.progress = B_TRUE; 3779 break; 3780 case 'D': 3781 flags.dedup = B_TRUE; 3782 break; 3783 case 'n': 3784 flags.dryrun = B_TRUE; 3785 break; 3786 case 'L': 3787 flags.largeblock = B_TRUE; 3788 break; 3789 case 'e': 3790 flags.embed_data = B_TRUE; 3791 break; 3792 case 't': 3793 resume_token = optarg; 3794 break; 3795 case 'c': 3796 flags.compress = B_TRUE; 3797 break; 3798 case ':': 3799 /* 3800 * If a parameter was not passed, optopt contains the 3801 * value that would normally lead us into the 3802 * appropriate case statement. If it's > 256, then this 3803 * must be a longopt and we should look at argv to get 3804 * the string. Otherwise it's just the character, so we 3805 * should use it directly. 3806 */ 3807 if (optopt <= UINT8_MAX) { 3808 (void) fprintf(stderr, 3809 gettext("missing argument for '%c' " 3810 "option\n"), optopt); 3811 } else { 3812 (void) fprintf(stderr, 3813 gettext("missing argument for '%s' " 3814 "option\n"), argv[optind - 1]); 3815 } 3816 usage(B_FALSE); 3817 break; 3818 case '?': 3819 /*FALLTHROUGH*/ 3820 default: 3821 /* 3822 * If an invalid flag was passed, optopt contains the 3823 * character if it was a short flag, or 0 if it was a 3824 * longopt. 3825 */ 3826 if (optopt != 0) { 3827 (void) fprintf(stderr, 3828 gettext("invalid option '%c'\n"), optopt); 3829 } else { 3830 (void) fprintf(stderr, 3831 gettext("invalid option '%s'\n"), 3832 argv[optind - 1]); 3833 3834 } 3835 usage(B_FALSE); 3836 } 3837 } 3838 3839 argc -= optind; 3840 argv += optind; 3841 3842 if (resume_token != NULL) { 3843 if (fromname != NULL || flags.replicate || flags.props || 3844 flags.dedup) { 3845 (void) fprintf(stderr, 3846 gettext("invalid flags combined with -t\n")); 3847 usage(B_FALSE); 3848 } 3849 if (argc != 0) { 3850 (void) fprintf(stderr, gettext("no additional " 3851 "arguments are permitted with -t\n")); 3852 usage(B_FALSE); 3853 } 3854 } else { 3855 if (argc < 1) { 3856 (void) fprintf(stderr, 3857 gettext("missing snapshot argument\n")); 3858 usage(B_FALSE); 3859 } 3860 if (argc > 1) { 3861 (void) fprintf(stderr, gettext("too many arguments\n")); 3862 usage(B_FALSE); 3863 } 3864 } 3865 3866 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3867 (void) fprintf(stderr, 3868 gettext("Error: Stream can not be written to a terminal.\n" 3869 "You must redirect standard output.\n")); 3870 return (1); 3871 } 3872 3873 if (resume_token != NULL) { 3874 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3875 resume_token)); 3876 } 3877 3878 /* 3879 * Special case sending a filesystem, or from a bookmark. 3880 */ 3881 if (strchr(argv[0], '@') == NULL || 3882 (fromname && strchr(fromname, '#') != NULL)) { 3883 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 3884 enum lzc_send_flags lzc_flags = 0; 3885 3886 if (flags.replicate || flags.doall || flags.props || 3887 flags.dedup || flags.dryrun || flags.verbose || 3888 flags.progress) { 3889 (void) fprintf(stderr, 3890 gettext("Error: " 3891 "Unsupported flag with filesystem or bookmark.\n")); 3892 return (1); 3893 } 3894 3895 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3896 if (zhp == NULL) 3897 return (1); 3898 3899 if (flags.largeblock) 3900 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3901 if (flags.embed_data) 3902 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3903 if (flags.compress) 3904 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 3905 3906 if (fromname != NULL && 3907 (fromname[0] == '#' || fromname[0] == '@')) { 3908 /* 3909 * Incremental source name begins with # or @. 3910 * Default to same fs as target. 3911 */ 3912 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3913 cp = strchr(frombuf, '@'); 3914 if (cp != NULL) 3915 *cp = '\0'; 3916 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3917 fromname = frombuf; 3918 } 3919 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3920 zfs_close(zhp); 3921 return (err != 0); 3922 } 3923 3924 cp = strchr(argv[0], '@'); 3925 *cp = '\0'; 3926 toname = cp + 1; 3927 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3928 if (zhp == NULL) 3929 return (1); 3930 3931 /* 3932 * If they specified the full path to the snapshot, chop off 3933 * everything except the short name of the snapshot, but special 3934 * case if they specify the origin. 3935 */ 3936 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3937 char origin[ZFS_MAX_DATASET_NAME_LEN]; 3938 zprop_source_t src; 3939 3940 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3941 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3942 3943 if (strcmp(origin, fromname) == 0) { 3944 fromname = NULL; 3945 flags.fromorigin = B_TRUE; 3946 } else { 3947 *cp = '\0'; 3948 if (cp != fromname && strcmp(argv[0], fromname)) { 3949 (void) fprintf(stderr, 3950 gettext("incremental source must be " 3951 "in same filesystem\n")); 3952 usage(B_FALSE); 3953 } 3954 fromname = cp + 1; 3955 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3956 (void) fprintf(stderr, 3957 gettext("invalid incremental source\n")); 3958 usage(B_FALSE); 3959 } 3960 } 3961 } 3962 3963 if (flags.replicate && fromname == NULL) 3964 flags.doall = B_TRUE; 3965 3966 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3967 extraverbose ? &dbgnv : NULL); 3968 3969 if (extraverbose && dbgnv != NULL) { 3970 /* 3971 * dump_nvlist prints to stdout, but that's been 3972 * redirected to a file. Make it print to stderr 3973 * instead. 3974 */ 3975 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3976 dump_nvlist(dbgnv, 0); 3977 nvlist_free(dbgnv); 3978 } 3979 zfs_close(zhp); 3980 3981 return (err != 0); 3982 } 3983 3984 /* 3985 * Restore a backup stream from stdin. 3986 */ 3987 static int 3988 zfs_do_receive(int argc, char **argv) 3989 { 3990 int c, err = 0; 3991 recvflags_t flags = { 0 }; 3992 boolean_t abort_resumable = B_FALSE; 3993 3994 nvlist_t *props; 3995 nvpair_t *nvp = NULL; 3996 3997 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3998 nomem(); 3999 4000 /* check options */ 4001 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 4002 switch (c) { 4003 case 'o': 4004 if (parseprop(props, optarg) != 0) 4005 return (1); 4006 break; 4007 case 'd': 4008 flags.isprefix = B_TRUE; 4009 break; 4010 case 'e': 4011 flags.isprefix = B_TRUE; 4012 flags.istail = B_TRUE; 4013 break; 4014 case 'n': 4015 flags.dryrun = B_TRUE; 4016 break; 4017 case 'u': 4018 flags.nomount = B_TRUE; 4019 break; 4020 case 'v': 4021 flags.verbose = B_TRUE; 4022 break; 4023 case 's': 4024 flags.resumable = B_TRUE; 4025 break; 4026 case 'F': 4027 flags.force = B_TRUE; 4028 break; 4029 case 'A': 4030 abort_resumable = B_TRUE; 4031 break; 4032 case ':': 4033 (void) fprintf(stderr, gettext("missing argument for " 4034 "'%c' option\n"), optopt); 4035 usage(B_FALSE); 4036 break; 4037 case '?': 4038 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4039 optopt); 4040 usage(B_FALSE); 4041 } 4042 } 4043 4044 argc -= optind; 4045 argv += optind; 4046 4047 /* check number of arguments */ 4048 if (argc < 1) { 4049 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4050 usage(B_FALSE); 4051 } 4052 if (argc > 1) { 4053 (void) fprintf(stderr, gettext("too many arguments\n")); 4054 usage(B_FALSE); 4055 } 4056 4057 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4058 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4059 (void) fprintf(stderr, gettext("invalid option")); 4060 usage(B_FALSE); 4061 } 4062 } 4063 4064 if (abort_resumable) { 4065 if (flags.isprefix || flags.istail || flags.dryrun || 4066 flags.resumable || flags.nomount) { 4067 (void) fprintf(stderr, gettext("invalid option")); 4068 usage(B_FALSE); 4069 } 4070 4071 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4072 (void) snprintf(namebuf, sizeof (namebuf), 4073 "%s/%%recv", argv[0]); 4074 4075 if (zfs_dataset_exists(g_zfs, namebuf, 4076 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4077 zfs_handle_t *zhp = zfs_open(g_zfs, 4078 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4079 if (zhp == NULL) 4080 return (1); 4081 err = zfs_destroy(zhp, B_FALSE); 4082 } else { 4083 zfs_handle_t *zhp = zfs_open(g_zfs, 4084 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4085 if (zhp == NULL) 4086 usage(B_FALSE); 4087 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4088 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4089 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4090 (void) fprintf(stderr, 4091 gettext("'%s' does not have any " 4092 "resumable receive state to abort\n"), 4093 argv[0]); 4094 return (1); 4095 } 4096 err = zfs_destroy(zhp, B_FALSE); 4097 } 4098 4099 return (err != 0); 4100 } 4101 4102 if (isatty(STDIN_FILENO)) { 4103 (void) fprintf(stderr, 4104 gettext("Error: Backup stream can not be read " 4105 "from a terminal.\n" 4106 "You must redirect standard input.\n")); 4107 return (1); 4108 } 4109 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4110 4111 return (err != 0); 4112 } 4113 4114 /* 4115 * allow/unallow stuff 4116 */ 4117 /* copied from zfs/sys/dsl_deleg.h */ 4118 #define ZFS_DELEG_PERM_CREATE "create" 4119 #define ZFS_DELEG_PERM_DESTROY "destroy" 4120 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4121 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4122 #define ZFS_DELEG_PERM_CLONE "clone" 4123 #define ZFS_DELEG_PERM_PROMOTE "promote" 4124 #define ZFS_DELEG_PERM_RENAME "rename" 4125 #define ZFS_DELEG_PERM_MOUNT "mount" 4126 #define ZFS_DELEG_PERM_SHARE "share" 4127 #define ZFS_DELEG_PERM_SEND "send" 4128 #define ZFS_DELEG_PERM_RECEIVE "receive" 4129 #define ZFS_DELEG_PERM_ALLOW "allow" 4130 #define ZFS_DELEG_PERM_USERPROP "userprop" 4131 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4132 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4133 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4134 #define ZFS_DELEG_PERM_USERUSED "userused" 4135 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4136 #define ZFS_DELEG_PERM_HOLD "hold" 4137 #define ZFS_DELEG_PERM_RELEASE "release" 4138 #define ZFS_DELEG_PERM_DIFF "diff" 4139 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4140 #define ZFS_DELEG_PERM_REMAP "remap" 4141 4142 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4143 4144 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4145 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4146 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4147 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4148 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4149 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4150 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4151 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4152 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4153 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4154 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4155 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4156 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4157 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4158 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4159 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4160 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4161 { ZFS_DELEG_PERM_REMAP, ZFS_DELEG_NOTE_REMAP }, 4162 4163 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4164 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4165 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4166 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4167 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4168 { NULL, ZFS_DELEG_NOTE_NONE } 4169 }; 4170 4171 /* permission structure */ 4172 typedef struct deleg_perm { 4173 zfs_deleg_who_type_t dp_who_type; 4174 const char *dp_name; 4175 boolean_t dp_local; 4176 boolean_t dp_descend; 4177 } deleg_perm_t; 4178 4179 /* */ 4180 typedef struct deleg_perm_node { 4181 deleg_perm_t dpn_perm; 4182 4183 uu_avl_node_t dpn_avl_node; 4184 } deleg_perm_node_t; 4185 4186 typedef struct fs_perm fs_perm_t; 4187 4188 /* permissions set */ 4189 typedef struct who_perm { 4190 zfs_deleg_who_type_t who_type; 4191 const char *who_name; /* id */ 4192 char who_ug_name[256]; /* user/group name */ 4193 fs_perm_t *who_fsperm; /* uplink */ 4194 4195 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4196 } who_perm_t; 4197 4198 /* */ 4199 typedef struct who_perm_node { 4200 who_perm_t who_perm; 4201 uu_avl_node_t who_avl_node; 4202 } who_perm_node_t; 4203 4204 typedef struct fs_perm_set fs_perm_set_t; 4205 /* fs permissions */ 4206 struct fs_perm { 4207 const char *fsp_name; 4208 4209 uu_avl_t *fsp_sc_avl; /* sets,create */ 4210 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4211 4212 fs_perm_set_t *fsp_set; /* uplink */ 4213 }; 4214 4215 /* */ 4216 typedef struct fs_perm_node { 4217 fs_perm_t fspn_fsperm; 4218 uu_avl_t *fspn_avl; 4219 4220 uu_list_node_t fspn_list_node; 4221 } fs_perm_node_t; 4222 4223 /* top level structure */ 4224 struct fs_perm_set { 4225 uu_list_pool_t *fsps_list_pool; 4226 uu_list_t *fsps_list; /* list of fs_perms */ 4227 4228 uu_avl_pool_t *fsps_named_set_avl_pool; 4229 uu_avl_pool_t *fsps_who_perm_avl_pool; 4230 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4231 }; 4232 4233 static inline const char * 4234 deleg_perm_type(zfs_deleg_note_t note) 4235 { 4236 /* subcommands */ 4237 switch (note) { 4238 /* SUBCOMMANDS */ 4239 /* OTHER */ 4240 case ZFS_DELEG_NOTE_GROUPQUOTA: 4241 case ZFS_DELEG_NOTE_GROUPUSED: 4242 case ZFS_DELEG_NOTE_USERPROP: 4243 case ZFS_DELEG_NOTE_USERQUOTA: 4244 case ZFS_DELEG_NOTE_USERUSED: 4245 /* other */ 4246 return (gettext("other")); 4247 default: 4248 return (gettext("subcommand")); 4249 } 4250 } 4251 4252 static int 4253 who_type2weight(zfs_deleg_who_type_t who_type) 4254 { 4255 int res; 4256 switch (who_type) { 4257 case ZFS_DELEG_NAMED_SET_SETS: 4258 case ZFS_DELEG_NAMED_SET: 4259 res = 0; 4260 break; 4261 case ZFS_DELEG_CREATE_SETS: 4262 case ZFS_DELEG_CREATE: 4263 res = 1; 4264 break; 4265 case ZFS_DELEG_USER_SETS: 4266 case ZFS_DELEG_USER: 4267 res = 2; 4268 break; 4269 case ZFS_DELEG_GROUP_SETS: 4270 case ZFS_DELEG_GROUP: 4271 res = 3; 4272 break; 4273 case ZFS_DELEG_EVERYONE_SETS: 4274 case ZFS_DELEG_EVERYONE: 4275 res = 4; 4276 break; 4277 default: 4278 res = -1; 4279 } 4280 4281 return (res); 4282 } 4283 4284 /* ARGSUSED */ 4285 static int 4286 who_perm_compare(const void *larg, const void *rarg, void *unused) 4287 { 4288 const who_perm_node_t *l = larg; 4289 const who_perm_node_t *r = rarg; 4290 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4291 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4292 int lweight = who_type2weight(ltype); 4293 int rweight = who_type2weight(rtype); 4294 int res = lweight - rweight; 4295 if (res == 0) 4296 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4297 ZFS_MAX_DELEG_NAME-1); 4298 4299 if (res == 0) 4300 return (0); 4301 if (res > 0) 4302 return (1); 4303 else 4304 return (-1); 4305 } 4306 4307 /* ARGSUSED */ 4308 static int 4309 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4310 { 4311 const deleg_perm_node_t *l = larg; 4312 const deleg_perm_node_t *r = rarg; 4313 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4314 ZFS_MAX_DELEG_NAME-1); 4315 4316 if (res == 0) 4317 return (0); 4318 4319 if (res > 0) 4320 return (1); 4321 else 4322 return (-1); 4323 } 4324 4325 static inline void 4326 fs_perm_set_init(fs_perm_set_t *fspset) 4327 { 4328 bzero(fspset, sizeof (fs_perm_set_t)); 4329 4330 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4331 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4332 NULL, UU_DEFAULT)) == NULL) 4333 nomem(); 4334 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4335 UU_DEFAULT)) == NULL) 4336 nomem(); 4337 4338 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4339 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4340 who_perm_node_t, who_avl_node), who_perm_compare, 4341 UU_DEFAULT)) == NULL) 4342 nomem(); 4343 4344 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4345 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4346 who_perm_node_t, who_avl_node), who_perm_compare, 4347 UU_DEFAULT)) == NULL) 4348 nomem(); 4349 4350 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4351 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4352 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4353 == NULL) 4354 nomem(); 4355 } 4356 4357 static inline void fs_perm_fini(fs_perm_t *); 4358 static inline void who_perm_fini(who_perm_t *); 4359 4360 static inline void 4361 fs_perm_set_fini(fs_perm_set_t *fspset) 4362 { 4363 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4364 4365 while (node != NULL) { 4366 fs_perm_node_t *next_node = 4367 uu_list_next(fspset->fsps_list, node); 4368 fs_perm_t *fsperm = &node->fspn_fsperm; 4369 fs_perm_fini(fsperm); 4370 uu_list_remove(fspset->fsps_list, node); 4371 free(node); 4372 node = next_node; 4373 } 4374 4375 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4376 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4377 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4378 } 4379 4380 static inline void 4381 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4382 const char *name) 4383 { 4384 deleg_perm->dp_who_type = type; 4385 deleg_perm->dp_name = name; 4386 } 4387 4388 static inline void 4389 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4390 zfs_deleg_who_type_t type, const char *name) 4391 { 4392 uu_avl_pool_t *pool; 4393 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4394 4395 bzero(who_perm, sizeof (who_perm_t)); 4396 4397 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4398 UU_DEFAULT)) == NULL) 4399 nomem(); 4400 4401 who_perm->who_type = type; 4402 who_perm->who_name = name; 4403 who_perm->who_fsperm = fsperm; 4404 } 4405 4406 static inline void 4407 who_perm_fini(who_perm_t *who_perm) 4408 { 4409 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4410 4411 while (node != NULL) { 4412 deleg_perm_node_t *next_node = 4413 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4414 4415 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4416 free(node); 4417 node = next_node; 4418 } 4419 4420 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4421 } 4422 4423 static inline void 4424 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4425 { 4426 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4427 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4428 4429 bzero(fsperm, sizeof (fs_perm_t)); 4430 4431 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4432 == NULL) 4433 nomem(); 4434 4435 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4436 == NULL) 4437 nomem(); 4438 4439 fsperm->fsp_set = fspset; 4440 fsperm->fsp_name = fsname; 4441 } 4442 4443 static inline void 4444 fs_perm_fini(fs_perm_t *fsperm) 4445 { 4446 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4447 while (node != NULL) { 4448 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4449 node); 4450 who_perm_t *who_perm = &node->who_perm; 4451 who_perm_fini(who_perm); 4452 uu_avl_remove(fsperm->fsp_sc_avl, node); 4453 free(node); 4454 node = next_node; 4455 } 4456 4457 node = uu_avl_first(fsperm->fsp_uge_avl); 4458 while (node != NULL) { 4459 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4460 node); 4461 who_perm_t *who_perm = &node->who_perm; 4462 who_perm_fini(who_perm); 4463 uu_avl_remove(fsperm->fsp_uge_avl, node); 4464 free(node); 4465 node = next_node; 4466 } 4467 4468 uu_avl_destroy(fsperm->fsp_sc_avl); 4469 uu_avl_destroy(fsperm->fsp_uge_avl); 4470 } 4471 4472 static void 4473 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4474 zfs_deleg_who_type_t who_type, const char *name, char locality) 4475 { 4476 uu_avl_index_t idx = 0; 4477 4478 deleg_perm_node_t *found_node = NULL; 4479 deleg_perm_t *deleg_perm = &node->dpn_perm; 4480 4481 deleg_perm_init(deleg_perm, who_type, name); 4482 4483 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4484 == NULL) 4485 uu_avl_insert(avl, node, idx); 4486 else { 4487 node = found_node; 4488 deleg_perm = &node->dpn_perm; 4489 } 4490 4491 4492 switch (locality) { 4493 case ZFS_DELEG_LOCAL: 4494 deleg_perm->dp_local = B_TRUE; 4495 break; 4496 case ZFS_DELEG_DESCENDENT: 4497 deleg_perm->dp_descend = B_TRUE; 4498 break; 4499 case ZFS_DELEG_NA: 4500 break; 4501 default: 4502 assert(B_FALSE); /* invalid locality */ 4503 } 4504 } 4505 4506 static inline int 4507 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4508 { 4509 nvpair_t *nvp = NULL; 4510 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4511 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4512 zfs_deleg_who_type_t who_type = who_perm->who_type; 4513 4514 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4515 const char *name = nvpair_name(nvp); 4516 data_type_t type = nvpair_type(nvp); 4517 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4518 deleg_perm_node_t *node = 4519 safe_malloc(sizeof (deleg_perm_node_t)); 4520 4521 assert(type == DATA_TYPE_BOOLEAN); 4522 4523 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4524 set_deleg_perm_node(avl, node, who_type, name, locality); 4525 } 4526 4527 return (0); 4528 } 4529 4530 static inline int 4531 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4532 { 4533 nvpair_t *nvp = NULL; 4534 fs_perm_set_t *fspset = fsperm->fsp_set; 4535 4536 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4537 nvlist_t *nvl2 = NULL; 4538 const char *name = nvpair_name(nvp); 4539 uu_avl_t *avl = NULL; 4540 uu_avl_pool_t *avl_pool = NULL; 4541 zfs_deleg_who_type_t perm_type = name[0]; 4542 char perm_locality = name[1]; 4543 const char *perm_name = name + 3; 4544 boolean_t is_set = B_TRUE; 4545 who_perm_t *who_perm = NULL; 4546 4547 assert('$' == name[2]); 4548 4549 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4550 return (-1); 4551 4552 switch (perm_type) { 4553 case ZFS_DELEG_CREATE: 4554 case ZFS_DELEG_CREATE_SETS: 4555 case ZFS_DELEG_NAMED_SET: 4556 case ZFS_DELEG_NAMED_SET_SETS: 4557 avl_pool = fspset->fsps_named_set_avl_pool; 4558 avl = fsperm->fsp_sc_avl; 4559 break; 4560 case ZFS_DELEG_USER: 4561 case ZFS_DELEG_USER_SETS: 4562 case ZFS_DELEG_GROUP: 4563 case ZFS_DELEG_GROUP_SETS: 4564 case ZFS_DELEG_EVERYONE: 4565 case ZFS_DELEG_EVERYONE_SETS: 4566 avl_pool = fspset->fsps_who_perm_avl_pool; 4567 avl = fsperm->fsp_uge_avl; 4568 break; 4569 4570 default: 4571 assert(!"unhandled zfs_deleg_who_type_t"); 4572 } 4573 4574 if (is_set) { 4575 who_perm_node_t *found_node = NULL; 4576 who_perm_node_t *node = safe_malloc( 4577 sizeof (who_perm_node_t)); 4578 who_perm = &node->who_perm; 4579 uu_avl_index_t idx = 0; 4580 4581 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4582 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4583 4584 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4585 == NULL) { 4586 if (avl == fsperm->fsp_uge_avl) { 4587 uid_t rid = 0; 4588 struct passwd *p = NULL; 4589 struct group *g = NULL; 4590 const char *nice_name = NULL; 4591 4592 switch (perm_type) { 4593 case ZFS_DELEG_USER_SETS: 4594 case ZFS_DELEG_USER: 4595 rid = atoi(perm_name); 4596 p = getpwuid(rid); 4597 if (p) 4598 nice_name = p->pw_name; 4599 break; 4600 case ZFS_DELEG_GROUP_SETS: 4601 case ZFS_DELEG_GROUP: 4602 rid = atoi(perm_name); 4603 g = getgrgid(rid); 4604 if (g) 4605 nice_name = g->gr_name; 4606 break; 4607 4608 default: 4609 break; 4610 } 4611 4612 if (nice_name != NULL) 4613 (void) strlcpy( 4614 node->who_perm.who_ug_name, 4615 nice_name, 256); 4616 } 4617 4618 uu_avl_insert(avl, node, idx); 4619 } else { 4620 node = found_node; 4621 who_perm = &node->who_perm; 4622 } 4623 } 4624 4625 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4626 } 4627 4628 return (0); 4629 } 4630 4631 static inline int 4632 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4633 { 4634 nvpair_t *nvp = NULL; 4635 uu_avl_index_t idx = 0; 4636 4637 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4638 nvlist_t *nvl2 = NULL; 4639 const char *fsname = nvpair_name(nvp); 4640 data_type_t type = nvpair_type(nvp); 4641 fs_perm_t *fsperm = NULL; 4642 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4643 if (node == NULL) 4644 nomem(); 4645 4646 fsperm = &node->fspn_fsperm; 4647 4648 assert(DATA_TYPE_NVLIST == type); 4649 4650 uu_list_node_init(node, &node->fspn_list_node, 4651 fspset->fsps_list_pool); 4652 4653 idx = uu_list_numnodes(fspset->fsps_list); 4654 fs_perm_init(fsperm, fspset, fsname); 4655 4656 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4657 return (-1); 4658 4659 (void) parse_fs_perm(fsperm, nvl2); 4660 4661 uu_list_insert(fspset->fsps_list, node, idx); 4662 } 4663 4664 return (0); 4665 } 4666 4667 static inline const char * 4668 deleg_perm_comment(zfs_deleg_note_t note) 4669 { 4670 const char *str = ""; 4671 4672 /* subcommands */ 4673 switch (note) { 4674 /* SUBCOMMANDS */ 4675 case ZFS_DELEG_NOTE_ALLOW: 4676 str = gettext("Must also have the permission that is being" 4677 "\n\t\t\t\tallowed"); 4678 break; 4679 case ZFS_DELEG_NOTE_CLONE: 4680 str = gettext("Must also have the 'create' ability and 'mount'" 4681 "\n\t\t\t\tability in the origin file system"); 4682 break; 4683 case ZFS_DELEG_NOTE_CREATE: 4684 str = gettext("Must also have the 'mount' ability"); 4685 break; 4686 case ZFS_DELEG_NOTE_DESTROY: 4687 str = gettext("Must also have the 'mount' ability"); 4688 break; 4689 case ZFS_DELEG_NOTE_DIFF: 4690 str = gettext("Allows lookup of paths within a dataset;" 4691 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4692 "\n\t\t\t\tin order to use zfs diff"); 4693 break; 4694 case ZFS_DELEG_NOTE_HOLD: 4695 str = gettext("Allows adding a user hold to a snapshot"); 4696 break; 4697 case ZFS_DELEG_NOTE_MOUNT: 4698 str = gettext("Allows mount/umount of ZFS datasets"); 4699 break; 4700 case ZFS_DELEG_NOTE_PROMOTE: 4701 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4702 " 'promote' ability in the origin file system"); 4703 break; 4704 case ZFS_DELEG_NOTE_RECEIVE: 4705 str = gettext("Must also have the 'mount' and 'create'" 4706 " ability"); 4707 break; 4708 case ZFS_DELEG_NOTE_RELEASE: 4709 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4710 "might destroy the snapshot"); 4711 break; 4712 case ZFS_DELEG_NOTE_RENAME: 4713 str = gettext("Must also have the 'mount' and 'create'" 4714 "\n\t\t\t\tability in the new parent"); 4715 break; 4716 case ZFS_DELEG_NOTE_ROLLBACK: 4717 str = gettext(""); 4718 break; 4719 case ZFS_DELEG_NOTE_SEND: 4720 str = gettext(""); 4721 break; 4722 case ZFS_DELEG_NOTE_SHARE: 4723 str = gettext("Allows sharing file systems over NFS or SMB" 4724 "\n\t\t\t\tprotocols"); 4725 break; 4726 case ZFS_DELEG_NOTE_SNAPSHOT: 4727 str = gettext(""); 4728 break; 4729 /* 4730 * case ZFS_DELEG_NOTE_VSCAN: 4731 * str = gettext(""); 4732 * break; 4733 */ 4734 /* OTHER */ 4735 case ZFS_DELEG_NOTE_GROUPQUOTA: 4736 str = gettext("Allows accessing any groupquota@... property"); 4737 break; 4738 case ZFS_DELEG_NOTE_GROUPUSED: 4739 str = gettext("Allows reading any groupused@... property"); 4740 break; 4741 case ZFS_DELEG_NOTE_USERPROP: 4742 str = gettext("Allows changing any user property"); 4743 break; 4744 case ZFS_DELEG_NOTE_USERQUOTA: 4745 str = gettext("Allows accessing any userquota@... property"); 4746 break; 4747 case ZFS_DELEG_NOTE_USERUSED: 4748 str = gettext("Allows reading any userused@... property"); 4749 break; 4750 /* other */ 4751 default: 4752 str = ""; 4753 } 4754 4755 return (str); 4756 } 4757 4758 struct allow_opts { 4759 boolean_t local; 4760 boolean_t descend; 4761 boolean_t user; 4762 boolean_t group; 4763 boolean_t everyone; 4764 boolean_t create; 4765 boolean_t set; 4766 boolean_t recursive; /* unallow only */ 4767 boolean_t prt_usage; 4768 4769 boolean_t prt_perms; 4770 char *who; 4771 char *perms; 4772 const char *dataset; 4773 }; 4774 4775 static inline int 4776 prop_cmp(const void *a, const void *b) 4777 { 4778 const char *str1 = *(const char **)a; 4779 const char *str2 = *(const char **)b; 4780 return (strcmp(str1, str2)); 4781 } 4782 4783 static void 4784 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4785 { 4786 const char *opt_desc[] = { 4787 "-h", gettext("show this help message and exit"), 4788 "-l", gettext("set permission locally"), 4789 "-d", gettext("set permission for descents"), 4790 "-u", gettext("set permission for user"), 4791 "-g", gettext("set permission for group"), 4792 "-e", gettext("set permission for everyone"), 4793 "-c", gettext("set create time permission"), 4794 "-s", gettext("define permission set"), 4795 /* unallow only */ 4796 "-r", gettext("remove permissions recursively"), 4797 }; 4798 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4799 size_t allow_size = unallow_size - 2; 4800 const char *props[ZFS_NUM_PROPS]; 4801 int i; 4802 size_t count = 0; 4803 FILE *fp = requested ? stdout : stderr; 4804 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4805 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4806 4807 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4808 HELP_ALLOW)); 4809 (void) fprintf(fp, gettext("Options:\n")); 4810 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4811 const char *opt = opt_desc[i++]; 4812 const char *optdsc = opt_desc[i]; 4813 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4814 } 4815 4816 (void) fprintf(fp, gettext("\nThe following permissions are " 4817 "supported:\n\n")); 4818 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4819 gettext("NOTES")); 4820 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4821 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4822 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4823 const char *perm_type = deleg_perm_type(perm_note); 4824 const char *perm_comment = deleg_perm_comment(perm_note); 4825 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4826 } 4827 4828 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4829 zprop_desc_t *pd = &pdtbl[i]; 4830 if (pd->pd_visible != B_TRUE) 4831 continue; 4832 4833 if (pd->pd_attr == PROP_READONLY) 4834 continue; 4835 4836 props[count++] = pd->pd_name; 4837 } 4838 props[count] = NULL; 4839 4840 qsort(props, count, sizeof (char *), prop_cmp); 4841 4842 for (i = 0; i < count; i++) 4843 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4844 4845 if (msg != NULL) 4846 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4847 4848 exit(requested ? 0 : 2); 4849 } 4850 4851 static inline const char * 4852 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4853 char **permsp) 4854 { 4855 if (un && argc == expected_argc - 1) 4856 *permsp = NULL; 4857 else if (argc == expected_argc) 4858 *permsp = argv[argc - 2]; 4859 else 4860 allow_usage(un, B_FALSE, 4861 gettext("wrong number of parameters\n")); 4862 4863 return (argv[argc - 1]); 4864 } 4865 4866 static void 4867 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4868 { 4869 int uge_sum = opts->user + opts->group + opts->everyone; 4870 int csuge_sum = opts->create + opts->set + uge_sum; 4871 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4872 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4873 4874 if (uge_sum > 1) 4875 allow_usage(un, B_FALSE, 4876 gettext("-u, -g, and -e are mutually exclusive\n")); 4877 4878 if (opts->prt_usage) { 4879 if (argc == 0 && all_sum == 0) 4880 allow_usage(un, B_TRUE, NULL); 4881 else 4882 usage(B_FALSE); 4883 } 4884 4885 if (opts->set) { 4886 if (csuge_sum > 1) 4887 allow_usage(un, B_FALSE, 4888 gettext("invalid options combined with -s\n")); 4889 4890 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4891 if (argv[0][0] != '@') 4892 allow_usage(un, B_FALSE, 4893 gettext("invalid set name: missing '@' prefix\n")); 4894 opts->who = argv[0]; 4895 } else if (opts->create) { 4896 if (ldcsuge_sum > 1) 4897 allow_usage(un, B_FALSE, 4898 gettext("invalid options combined with -c\n")); 4899 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4900 } else if (opts->everyone) { 4901 if (csuge_sum > 1) 4902 allow_usage(un, B_FALSE, 4903 gettext("invalid options combined with -e\n")); 4904 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4905 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4906 == 0) { 4907 opts->everyone = B_TRUE; 4908 argc--; 4909 argv++; 4910 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4911 } else if (argc == 1 && !un) { 4912 opts->prt_perms = B_TRUE; 4913 opts->dataset = argv[argc-1]; 4914 } else { 4915 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4916 opts->who = argv[0]; 4917 } 4918 4919 if (!opts->local && !opts->descend) { 4920 opts->local = B_TRUE; 4921 opts->descend = B_TRUE; 4922 } 4923 } 4924 4925 static void 4926 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4927 const char *who, char *perms, nvlist_t *top_nvl) 4928 { 4929 int i; 4930 char ld[2] = { '\0', '\0' }; 4931 char who_buf[MAXNAMELEN + 32]; 4932 char base_type = '\0'; 4933 char set_type = '\0'; 4934 nvlist_t *base_nvl = NULL; 4935 nvlist_t *set_nvl = NULL; 4936 nvlist_t *nvl; 4937 4938 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4939 nomem(); 4940 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4941 nomem(); 4942 4943 switch (type) { 4944 case ZFS_DELEG_NAMED_SET_SETS: 4945 case ZFS_DELEG_NAMED_SET: 4946 set_type = ZFS_DELEG_NAMED_SET_SETS; 4947 base_type = ZFS_DELEG_NAMED_SET; 4948 ld[0] = ZFS_DELEG_NA; 4949 break; 4950 case ZFS_DELEG_CREATE_SETS: 4951 case ZFS_DELEG_CREATE: 4952 set_type = ZFS_DELEG_CREATE_SETS; 4953 base_type = ZFS_DELEG_CREATE; 4954 ld[0] = ZFS_DELEG_NA; 4955 break; 4956 case ZFS_DELEG_USER_SETS: 4957 case ZFS_DELEG_USER: 4958 set_type = ZFS_DELEG_USER_SETS; 4959 base_type = ZFS_DELEG_USER; 4960 if (local) 4961 ld[0] = ZFS_DELEG_LOCAL; 4962 if (descend) 4963 ld[1] = ZFS_DELEG_DESCENDENT; 4964 break; 4965 case ZFS_DELEG_GROUP_SETS: 4966 case ZFS_DELEG_GROUP: 4967 set_type = ZFS_DELEG_GROUP_SETS; 4968 base_type = ZFS_DELEG_GROUP; 4969 if (local) 4970 ld[0] = ZFS_DELEG_LOCAL; 4971 if (descend) 4972 ld[1] = ZFS_DELEG_DESCENDENT; 4973 break; 4974 case ZFS_DELEG_EVERYONE_SETS: 4975 case ZFS_DELEG_EVERYONE: 4976 set_type = ZFS_DELEG_EVERYONE_SETS; 4977 base_type = ZFS_DELEG_EVERYONE; 4978 if (local) 4979 ld[0] = ZFS_DELEG_LOCAL; 4980 if (descend) 4981 ld[1] = ZFS_DELEG_DESCENDENT; 4982 break; 4983 4984 default: 4985 assert(set_type != '\0' && base_type != '\0'); 4986 } 4987 4988 if (perms != NULL) { 4989 char *curr = perms; 4990 char *end = curr + strlen(perms); 4991 4992 while (curr < end) { 4993 char *delim = strchr(curr, ','); 4994 if (delim == NULL) 4995 delim = end; 4996 else 4997 *delim = '\0'; 4998 4999 if (curr[0] == '@') 5000 nvl = set_nvl; 5001 else 5002 nvl = base_nvl; 5003 5004 (void) nvlist_add_boolean(nvl, curr); 5005 if (delim != end) 5006 *delim = ','; 5007 curr = delim + 1; 5008 } 5009 5010 for (i = 0; i < 2; i++) { 5011 char locality = ld[i]; 5012 if (locality == 0) 5013 continue; 5014 5015 if (!nvlist_empty(base_nvl)) { 5016 if (who != NULL) 5017 (void) snprintf(who_buf, 5018 sizeof (who_buf), "%c%c$%s", 5019 base_type, locality, who); 5020 else 5021 (void) snprintf(who_buf, 5022 sizeof (who_buf), "%c%c$", 5023 base_type, locality); 5024 5025 (void) nvlist_add_nvlist(top_nvl, who_buf, 5026 base_nvl); 5027 } 5028 5029 5030 if (!nvlist_empty(set_nvl)) { 5031 if (who != NULL) 5032 (void) snprintf(who_buf, 5033 sizeof (who_buf), "%c%c$%s", 5034 set_type, locality, who); 5035 else 5036 (void) snprintf(who_buf, 5037 sizeof (who_buf), "%c%c$", 5038 set_type, locality); 5039 5040 (void) nvlist_add_nvlist(top_nvl, who_buf, 5041 set_nvl); 5042 } 5043 } 5044 } else { 5045 for (i = 0; i < 2; i++) { 5046 char locality = ld[i]; 5047 if (locality == 0) 5048 continue; 5049 5050 if (who != NULL) 5051 (void) snprintf(who_buf, sizeof (who_buf), 5052 "%c%c$%s", base_type, locality, who); 5053 else 5054 (void) snprintf(who_buf, sizeof (who_buf), 5055 "%c%c$", base_type, locality); 5056 (void) nvlist_add_boolean(top_nvl, who_buf); 5057 5058 if (who != NULL) 5059 (void) snprintf(who_buf, sizeof (who_buf), 5060 "%c%c$%s", set_type, locality, who); 5061 else 5062 (void) snprintf(who_buf, sizeof (who_buf), 5063 "%c%c$", set_type, locality); 5064 (void) nvlist_add_boolean(top_nvl, who_buf); 5065 } 5066 } 5067 } 5068 5069 static int 5070 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5071 { 5072 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5073 nomem(); 5074 5075 if (opts->set) { 5076 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5077 opts->descend, opts->who, opts->perms, *nvlp); 5078 } else if (opts->create) { 5079 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5080 opts->descend, NULL, opts->perms, *nvlp); 5081 } else if (opts->everyone) { 5082 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5083 opts->descend, NULL, opts->perms, *nvlp); 5084 } else { 5085 char *curr = opts->who; 5086 char *end = curr + strlen(curr); 5087 5088 while (curr < end) { 5089 const char *who; 5090 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5091 char *endch; 5092 char *delim = strchr(curr, ','); 5093 char errbuf[256]; 5094 char id[64]; 5095 struct passwd *p = NULL; 5096 struct group *g = NULL; 5097 5098 uid_t rid; 5099 if (delim == NULL) 5100 delim = end; 5101 else 5102 *delim = '\0'; 5103 5104 rid = (uid_t)strtol(curr, &endch, 0); 5105 if (opts->user) { 5106 who_type = ZFS_DELEG_USER; 5107 if (*endch != '\0') 5108 p = getpwnam(curr); 5109 else 5110 p = getpwuid(rid); 5111 5112 if (p != NULL) 5113 rid = p->pw_uid; 5114 else { 5115 (void) snprintf(errbuf, 256, gettext( 5116 "invalid user %s"), curr); 5117 allow_usage(un, B_TRUE, errbuf); 5118 } 5119 } else if (opts->group) { 5120 who_type = ZFS_DELEG_GROUP; 5121 if (*endch != '\0') 5122 g = getgrnam(curr); 5123 else 5124 g = getgrgid(rid); 5125 5126 if (g != NULL) 5127 rid = g->gr_gid; 5128 else { 5129 (void) snprintf(errbuf, 256, gettext( 5130 "invalid group %s"), curr); 5131 allow_usage(un, B_TRUE, errbuf); 5132 } 5133 } else { 5134 if (*endch != '\0') { 5135 p = getpwnam(curr); 5136 } else { 5137 p = getpwuid(rid); 5138 } 5139 5140 if (p == NULL) { 5141 if (*endch != '\0') { 5142 g = getgrnam(curr); 5143 } else { 5144 g = getgrgid(rid); 5145 } 5146 } 5147 5148 if (p != NULL) { 5149 who_type = ZFS_DELEG_USER; 5150 rid = p->pw_uid; 5151 } else if (g != NULL) { 5152 who_type = ZFS_DELEG_GROUP; 5153 rid = g->gr_gid; 5154 } else { 5155 (void) snprintf(errbuf, 256, gettext( 5156 "invalid user/group %s"), curr); 5157 allow_usage(un, B_TRUE, errbuf); 5158 } 5159 } 5160 5161 (void) sprintf(id, "%u", rid); 5162 who = id; 5163 5164 store_allow_perm(who_type, opts->local, 5165 opts->descend, who, opts->perms, *nvlp); 5166 curr = delim + 1; 5167 } 5168 } 5169 5170 return (0); 5171 } 5172 5173 static void 5174 print_set_creat_perms(uu_avl_t *who_avl) 5175 { 5176 const char *sc_title[] = { 5177 gettext("Permission sets:\n"), 5178 gettext("Create time permissions:\n"), 5179 NULL 5180 }; 5181 const char **title_ptr = sc_title; 5182 who_perm_node_t *who_node = NULL; 5183 int prev_weight = -1; 5184 5185 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5186 who_node = uu_avl_next(who_avl, who_node)) { 5187 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5188 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5189 const char *who_name = who_node->who_perm.who_name; 5190 int weight = who_type2weight(who_type); 5191 boolean_t first = B_TRUE; 5192 deleg_perm_node_t *deleg_node; 5193 5194 if (prev_weight != weight) { 5195 (void) printf(*title_ptr++); 5196 prev_weight = weight; 5197 } 5198 5199 if (who_name == NULL || strnlen(who_name, 1) == 0) 5200 (void) printf("\t"); 5201 else 5202 (void) printf("\t%s ", who_name); 5203 5204 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5205 deleg_node = uu_avl_next(avl, deleg_node)) { 5206 if (first) { 5207 (void) printf("%s", 5208 deleg_node->dpn_perm.dp_name); 5209 first = B_FALSE; 5210 } else 5211 (void) printf(",%s", 5212 deleg_node->dpn_perm.dp_name); 5213 } 5214 5215 (void) printf("\n"); 5216 } 5217 } 5218 5219 static void 5220 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5221 const char *title) 5222 { 5223 who_perm_node_t *who_node = NULL; 5224 boolean_t prt_title = B_TRUE; 5225 uu_avl_walk_t *walk; 5226 5227 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5228 nomem(); 5229 5230 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5231 const char *who_name = who_node->who_perm.who_name; 5232 const char *nice_who_name = who_node->who_perm.who_ug_name; 5233 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5234 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5235 char delim = ' '; 5236 deleg_perm_node_t *deleg_node; 5237 boolean_t prt_who = B_TRUE; 5238 5239 for (deleg_node = uu_avl_first(avl); 5240 deleg_node != NULL; 5241 deleg_node = uu_avl_next(avl, deleg_node)) { 5242 if (local != deleg_node->dpn_perm.dp_local || 5243 descend != deleg_node->dpn_perm.dp_descend) 5244 continue; 5245 5246 if (prt_who) { 5247 const char *who = NULL; 5248 if (prt_title) { 5249 prt_title = B_FALSE; 5250 (void) printf(title); 5251 } 5252 5253 switch (who_type) { 5254 case ZFS_DELEG_USER_SETS: 5255 case ZFS_DELEG_USER: 5256 who = gettext("user"); 5257 if (nice_who_name) 5258 who_name = nice_who_name; 5259 break; 5260 case ZFS_DELEG_GROUP_SETS: 5261 case ZFS_DELEG_GROUP: 5262 who = gettext("group"); 5263 if (nice_who_name) 5264 who_name = nice_who_name; 5265 break; 5266 case ZFS_DELEG_EVERYONE_SETS: 5267 case ZFS_DELEG_EVERYONE: 5268 who = gettext("everyone"); 5269 who_name = NULL; 5270 break; 5271 5272 default: 5273 assert(who != NULL); 5274 } 5275 5276 prt_who = B_FALSE; 5277 if (who_name == NULL) 5278 (void) printf("\t%s", who); 5279 else 5280 (void) printf("\t%s %s", who, who_name); 5281 } 5282 5283 (void) printf("%c%s", delim, 5284 deleg_node->dpn_perm.dp_name); 5285 delim = ','; 5286 } 5287 5288 if (!prt_who) 5289 (void) printf("\n"); 5290 } 5291 5292 uu_avl_walk_end(walk); 5293 } 5294 5295 static void 5296 print_fs_perms(fs_perm_set_t *fspset) 5297 { 5298 fs_perm_node_t *node = NULL; 5299 char buf[MAXNAMELEN + 32]; 5300 const char *dsname = buf; 5301 5302 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5303 node = uu_list_next(fspset->fsps_list, node)) { 5304 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5305 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5306 int left = 0; 5307 5308 (void) snprintf(buf, sizeof (buf), 5309 gettext("---- Permissions on %s "), 5310 node->fspn_fsperm.fsp_name); 5311 (void) printf(dsname); 5312 left = 70 - strlen(buf); 5313 while (left-- > 0) 5314 (void) printf("-"); 5315 (void) printf("\n"); 5316 5317 print_set_creat_perms(sc_avl); 5318 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5319 gettext("Local permissions:\n")); 5320 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5321 gettext("Descendent permissions:\n")); 5322 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5323 gettext("Local+Descendent permissions:\n")); 5324 } 5325 } 5326 5327 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5328 5329 struct deleg_perms { 5330 boolean_t un; 5331 nvlist_t *nvl; 5332 }; 5333 5334 static int 5335 set_deleg_perms(zfs_handle_t *zhp, void *data) 5336 { 5337 struct deleg_perms *perms = (struct deleg_perms *)data; 5338 zfs_type_t zfs_type = zfs_get_type(zhp); 5339 5340 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5341 return (0); 5342 5343 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5344 } 5345 5346 static int 5347 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5348 { 5349 zfs_handle_t *zhp; 5350 nvlist_t *perm_nvl = NULL; 5351 nvlist_t *update_perm_nvl = NULL; 5352 int error = 1; 5353 int c; 5354 struct allow_opts opts = { 0 }; 5355 5356 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5357 5358 /* check opts */ 5359 while ((c = getopt(argc, argv, optstr)) != -1) { 5360 switch (c) { 5361 case 'l': 5362 opts.local = B_TRUE; 5363 break; 5364 case 'd': 5365 opts.descend = B_TRUE; 5366 break; 5367 case 'u': 5368 opts.user = B_TRUE; 5369 break; 5370 case 'g': 5371 opts.group = B_TRUE; 5372 break; 5373 case 'e': 5374 opts.everyone = B_TRUE; 5375 break; 5376 case 's': 5377 opts.set = B_TRUE; 5378 break; 5379 case 'c': 5380 opts.create = B_TRUE; 5381 break; 5382 case 'r': 5383 opts.recursive = B_TRUE; 5384 break; 5385 case ':': 5386 (void) fprintf(stderr, gettext("missing argument for " 5387 "'%c' option\n"), optopt); 5388 usage(B_FALSE); 5389 break; 5390 case 'h': 5391 opts.prt_usage = B_TRUE; 5392 break; 5393 case '?': 5394 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5395 optopt); 5396 usage(B_FALSE); 5397 } 5398 } 5399 5400 argc -= optind; 5401 argv += optind; 5402 5403 /* check arguments */ 5404 parse_allow_args(argc, argv, un, &opts); 5405 5406 /* try to open the dataset */ 5407 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5408 ZFS_TYPE_VOLUME)) == NULL) { 5409 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5410 opts.dataset); 5411 return (-1); 5412 } 5413 5414 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5415 goto cleanup2; 5416 5417 fs_perm_set_init(&fs_perm_set); 5418 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5419 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5420 goto cleanup1; 5421 } 5422 5423 if (opts.prt_perms) 5424 print_fs_perms(&fs_perm_set); 5425 else { 5426 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5427 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5428 goto cleanup0; 5429 5430 if (un && opts.recursive) { 5431 struct deleg_perms data = { un, update_perm_nvl }; 5432 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5433 &data) != 0) 5434 goto cleanup0; 5435 } 5436 } 5437 5438 error = 0; 5439 5440 cleanup0: 5441 nvlist_free(perm_nvl); 5442 nvlist_free(update_perm_nvl); 5443 cleanup1: 5444 fs_perm_set_fini(&fs_perm_set); 5445 cleanup2: 5446 zfs_close(zhp); 5447 5448 return (error); 5449 } 5450 5451 static int 5452 zfs_do_allow(int argc, char **argv) 5453 { 5454 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5455 } 5456 5457 static int 5458 zfs_do_unallow(int argc, char **argv) 5459 { 5460 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5461 } 5462 5463 static int 5464 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5465 { 5466 int errors = 0; 5467 int i; 5468 const char *tag; 5469 boolean_t recursive = B_FALSE; 5470 const char *opts = holding ? "rt" : "r"; 5471 int c; 5472 5473 /* check options */ 5474 while ((c = getopt(argc, argv, opts)) != -1) { 5475 switch (c) { 5476 case 'r': 5477 recursive = B_TRUE; 5478 break; 5479 case '?': 5480 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5481 optopt); 5482 usage(B_FALSE); 5483 } 5484 } 5485 5486 argc -= optind; 5487 argv += optind; 5488 5489 /* check number of arguments */ 5490 if (argc < 2) 5491 usage(B_FALSE); 5492 5493 tag = argv[0]; 5494 --argc; 5495 ++argv; 5496 5497 if (holding && tag[0] == '.') { 5498 /* tags starting with '.' are reserved for libzfs */ 5499 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5500 usage(B_FALSE); 5501 } 5502 5503 for (i = 0; i < argc; ++i) { 5504 zfs_handle_t *zhp; 5505 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5506 const char *delim; 5507 char *path = argv[i]; 5508 5509 delim = strchr(path, '@'); 5510 if (delim == NULL) { 5511 (void) fprintf(stderr, 5512 gettext("'%s' is not a snapshot\n"), path); 5513 ++errors; 5514 continue; 5515 } 5516 (void) strncpy(parent, path, delim - path); 5517 parent[delim - path] = '\0'; 5518 5519 zhp = zfs_open(g_zfs, parent, 5520 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5521 if (zhp == NULL) { 5522 ++errors; 5523 continue; 5524 } 5525 if (holding) { 5526 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5527 ++errors; 5528 } else { 5529 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5530 ++errors; 5531 } 5532 zfs_close(zhp); 5533 } 5534 5535 return (errors != 0); 5536 } 5537 5538 /* 5539 * zfs hold [-r] [-t] <tag> <snap> ... 5540 * 5541 * -r Recursively hold 5542 * 5543 * Apply a user-hold with the given tag to the list of snapshots. 5544 */ 5545 static int 5546 zfs_do_hold(int argc, char **argv) 5547 { 5548 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5549 } 5550 5551 /* 5552 * zfs release [-r] <tag> <snap> ... 5553 * 5554 * -r Recursively release 5555 * 5556 * Release a user-hold with the given tag from the list of snapshots. 5557 */ 5558 static int 5559 zfs_do_release(int argc, char **argv) 5560 { 5561 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5562 } 5563 5564 typedef struct holds_cbdata { 5565 boolean_t cb_recursive; 5566 const char *cb_snapname; 5567 nvlist_t **cb_nvlp; 5568 size_t cb_max_namelen; 5569 size_t cb_max_taglen; 5570 } holds_cbdata_t; 5571 5572 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5573 #define DATETIME_BUF_LEN (32) 5574 /* 5575 * 5576 */ 5577 static void 5578 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5579 { 5580 int i; 5581 nvpair_t *nvp = NULL; 5582 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5583 const char *col; 5584 5585 if (!scripted) { 5586 for (i = 0; i < 3; i++) { 5587 col = gettext(hdr_cols[i]); 5588 if (i < 2) 5589 (void) printf("%-*s ", i ? tagwidth : nwidth, 5590 col); 5591 else 5592 (void) printf("%s\n", col); 5593 } 5594 } 5595 5596 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5597 char *zname = nvpair_name(nvp); 5598 nvlist_t *nvl2; 5599 nvpair_t *nvp2 = NULL; 5600 (void) nvpair_value_nvlist(nvp, &nvl2); 5601 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5602 char tsbuf[DATETIME_BUF_LEN]; 5603 char *tagname = nvpair_name(nvp2); 5604 uint64_t val = 0; 5605 time_t time; 5606 struct tm t; 5607 5608 (void) nvpair_value_uint64(nvp2, &val); 5609 time = (time_t)val; 5610 (void) localtime_r(&time, &t); 5611 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5612 gettext(STRFTIME_FMT_STR), &t); 5613 5614 if (scripted) { 5615 (void) printf("%s\t%s\t%s\n", zname, 5616 tagname, tsbuf); 5617 } else { 5618 (void) printf("%-*s %-*s %s\n", nwidth, 5619 zname, tagwidth, tagname, tsbuf); 5620 } 5621 } 5622 } 5623 } 5624 5625 /* 5626 * Generic callback function to list a dataset or snapshot. 5627 */ 5628 static int 5629 holds_callback(zfs_handle_t *zhp, void *data) 5630 { 5631 holds_cbdata_t *cbp = data; 5632 nvlist_t *top_nvl = *cbp->cb_nvlp; 5633 nvlist_t *nvl = NULL; 5634 nvpair_t *nvp = NULL; 5635 const char *zname = zfs_get_name(zhp); 5636 size_t znamelen = strlen(zname); 5637 5638 if (cbp->cb_recursive) { 5639 const char *snapname; 5640 char *delim = strchr(zname, '@'); 5641 if (delim == NULL) 5642 return (0); 5643 5644 snapname = delim + 1; 5645 if (strcmp(cbp->cb_snapname, snapname)) 5646 return (0); 5647 } 5648 5649 if (zfs_get_holds(zhp, &nvl) != 0) 5650 return (-1); 5651 5652 if (znamelen > cbp->cb_max_namelen) 5653 cbp->cb_max_namelen = znamelen; 5654 5655 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5656 const char *tag = nvpair_name(nvp); 5657 size_t taglen = strlen(tag); 5658 if (taglen > cbp->cb_max_taglen) 5659 cbp->cb_max_taglen = taglen; 5660 } 5661 5662 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5663 } 5664 5665 /* 5666 * zfs holds [-r] <snap> ... 5667 * 5668 * -r Recursively hold 5669 */ 5670 static int 5671 zfs_do_holds(int argc, char **argv) 5672 { 5673 int errors = 0; 5674 int c; 5675 int i; 5676 boolean_t scripted = B_FALSE; 5677 boolean_t recursive = B_FALSE; 5678 const char *opts = "rH"; 5679 nvlist_t *nvl; 5680 5681 int types = ZFS_TYPE_SNAPSHOT; 5682 holds_cbdata_t cb = { 0 }; 5683 5684 int limit = 0; 5685 int ret = 0; 5686 int flags = 0; 5687 5688 /* check options */ 5689 while ((c = getopt(argc, argv, opts)) != -1) { 5690 switch (c) { 5691 case 'r': 5692 recursive = B_TRUE; 5693 break; 5694 case 'H': 5695 scripted = B_TRUE; 5696 break; 5697 case '?': 5698 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5699 optopt); 5700 usage(B_FALSE); 5701 } 5702 } 5703 5704 if (recursive) { 5705 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5706 flags |= ZFS_ITER_RECURSE; 5707 } 5708 5709 argc -= optind; 5710 argv += optind; 5711 5712 /* check number of arguments */ 5713 if (argc < 1) 5714 usage(B_FALSE); 5715 5716 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5717 nomem(); 5718 5719 for (i = 0; i < argc; ++i) { 5720 char *snapshot = argv[i]; 5721 const char *delim; 5722 const char *snapname; 5723 5724 delim = strchr(snapshot, '@'); 5725 if (delim == NULL) { 5726 (void) fprintf(stderr, 5727 gettext("'%s' is not a snapshot\n"), snapshot); 5728 ++errors; 5729 continue; 5730 } 5731 snapname = delim + 1; 5732 if (recursive) 5733 snapshot[delim - snapshot] = '\0'; 5734 5735 cb.cb_recursive = recursive; 5736 cb.cb_snapname = snapname; 5737 cb.cb_nvlp = &nvl; 5738 5739 /* 5740 * 1. collect holds data, set format options 5741 */ 5742 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5743 holds_callback, &cb); 5744 if (ret != 0) 5745 ++errors; 5746 } 5747 5748 /* 5749 * 2. print holds data 5750 */ 5751 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5752 5753 if (nvlist_empty(nvl)) 5754 (void) printf(gettext("no datasets available\n")); 5755 5756 nvlist_free(nvl); 5757 5758 return (0 != errors); 5759 } 5760 5761 #define CHECK_SPINNER 30 5762 #define SPINNER_TIME 3 /* seconds */ 5763 #define MOUNT_TIME 1 /* seconds */ 5764 5765 typedef struct get_all_state { 5766 boolean_t ga_verbose; 5767 get_all_cb_t *ga_cbp; 5768 } get_all_state_t; 5769 5770 static int 5771 get_one_dataset(zfs_handle_t *zhp, void *data) 5772 { 5773 static char *spin[] = { "-", "\\", "|", "/" }; 5774 static int spinval = 0; 5775 static int spincheck = 0; 5776 static time_t last_spin_time = (time_t)0; 5777 get_all_state_t *state = data; 5778 zfs_type_t type = zfs_get_type(zhp); 5779 5780 if (state->ga_verbose) { 5781 if (--spincheck < 0) { 5782 time_t now = time(NULL); 5783 if (last_spin_time + SPINNER_TIME < now) { 5784 update_progress(spin[spinval++ % 4]); 5785 last_spin_time = now; 5786 } 5787 spincheck = CHECK_SPINNER; 5788 } 5789 } 5790 5791 /* 5792 * Interate over any nested datasets. 5793 */ 5794 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5795 zfs_close(zhp); 5796 return (1); 5797 } 5798 5799 /* 5800 * Skip any datasets whose type does not match. 5801 */ 5802 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5803 zfs_close(zhp); 5804 return (0); 5805 } 5806 libzfs_add_handle(state->ga_cbp, zhp); 5807 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc); 5808 5809 return (0); 5810 } 5811 5812 static void 5813 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose) 5814 { 5815 get_all_state_t state = { 5816 .ga_verbose = verbose, 5817 .ga_cbp = cbp 5818 }; 5819 5820 if (verbose) 5821 set_progress_header(gettext("Reading ZFS config")); 5822 (void) zfs_iter_root(g_zfs, get_one_dataset, &state); 5823 5824 if (verbose) 5825 finish_progress(gettext("done.")); 5826 } 5827 5828 /* 5829 * Generic callback for sharing or mounting filesystems. Because the code is so 5830 * similar, we have a common function with an extra parameter to determine which 5831 * mode we are using. 5832 */ 5833 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t; 5834 5835 typedef struct share_mount_state { 5836 share_mount_op_t sm_op; 5837 boolean_t sm_verbose; 5838 int sm_flags; 5839 char *sm_options; 5840 char *sm_proto; /* only valid for OP_SHARE */ 5841 mutex_t sm_lock; /* protects the remaining fields */ 5842 uint_t sm_total; /* number of filesystems to process */ 5843 uint_t sm_done; /* number of filesystems processed */ 5844 int sm_status; /* -1 if any of the share/mount operations failed */ 5845 } share_mount_state_t; 5846 5847 /* 5848 * Share or mount a dataset. 5849 */ 5850 static int 5851 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5852 boolean_t explicit, const char *options) 5853 { 5854 char mountpoint[ZFS_MAXPROPLEN]; 5855 char shareopts[ZFS_MAXPROPLEN]; 5856 char smbshareopts[ZFS_MAXPROPLEN]; 5857 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5858 struct mnttab mnt; 5859 uint64_t zoned, canmount; 5860 boolean_t shared_nfs, shared_smb; 5861 5862 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5863 5864 /* 5865 * Check to make sure we can mount/share this dataset. If we 5866 * are in the global zone and the filesystem is exported to a 5867 * local zone, or if we are in a local zone and the 5868 * filesystem is not exported, then it is an error. 5869 */ 5870 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5871 5872 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5873 if (!explicit) 5874 return (0); 5875 5876 (void) fprintf(stderr, gettext("cannot %s '%s': " 5877 "dataset is exported to a local zone\n"), cmdname, 5878 zfs_get_name(zhp)); 5879 return (1); 5880 5881 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5882 if (!explicit) 5883 return (0); 5884 5885 (void) fprintf(stderr, gettext("cannot %s '%s': " 5886 "permission denied\n"), cmdname, 5887 zfs_get_name(zhp)); 5888 return (1); 5889 } 5890 5891 /* 5892 * Ignore any filesystems which don't apply to us. This 5893 * includes those with a legacy mountpoint, or those with 5894 * legacy share options. 5895 */ 5896 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5897 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5898 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5899 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5900 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5901 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5902 5903 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5904 strcmp(smbshareopts, "off") == 0) { 5905 if (!explicit) 5906 return (0); 5907 5908 (void) fprintf(stderr, gettext("cannot share '%s': " 5909 "legacy share\n"), zfs_get_name(zhp)); 5910 (void) fprintf(stderr, gettext("use share(1M) to " 5911 "share this filesystem, or set " 5912 "sharenfs property on\n")); 5913 return (1); 5914 } 5915 5916 /* 5917 * We cannot share or mount legacy filesystems. If the 5918 * shareopts is non-legacy but the mountpoint is legacy, we 5919 * treat it as a legacy share. 5920 */ 5921 if (strcmp(mountpoint, "legacy") == 0) { 5922 if (!explicit) 5923 return (0); 5924 5925 (void) fprintf(stderr, gettext("cannot %s '%s': " 5926 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5927 (void) fprintf(stderr, gettext("use %s(1M) to " 5928 "%s this filesystem\n"), cmdname, cmdname); 5929 return (1); 5930 } 5931 5932 if (strcmp(mountpoint, "none") == 0) { 5933 if (!explicit) 5934 return (0); 5935 5936 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5937 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5938 return (1); 5939 } 5940 5941 /* 5942 * canmount explicit outcome 5943 * on no pass through 5944 * on yes pass through 5945 * off no return 0 5946 * off yes display error, return 1 5947 * noauto no return 0 5948 * noauto yes pass through 5949 */ 5950 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5951 if (canmount == ZFS_CANMOUNT_OFF) { 5952 if (!explicit) 5953 return (0); 5954 5955 (void) fprintf(stderr, gettext("cannot %s '%s': " 5956 "'canmount' property is set to 'off'\n"), cmdname, 5957 zfs_get_name(zhp)); 5958 return (1); 5959 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5960 return (0); 5961 } 5962 5963 /* 5964 * If this filesystem is inconsistent and has a receive resume 5965 * token, we can not mount it. 5966 */ 5967 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5968 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5969 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5970 if (!explicit) 5971 return (0); 5972 5973 (void) fprintf(stderr, gettext("cannot %s '%s': " 5974 "Contains partially-completed state from " 5975 "\"zfs receive -r\", which can be resumed with " 5976 "\"zfs send -t\"\n"), 5977 cmdname, zfs_get_name(zhp)); 5978 return (1); 5979 } 5980 5981 /* 5982 * At this point, we have verified that the mountpoint and/or 5983 * shareopts are appropriate for auto management. If the 5984 * filesystem is already mounted or shared, return (failing 5985 * for explicit requests); otherwise mount or share the 5986 * filesystem. 5987 */ 5988 switch (op) { 5989 case OP_SHARE: 5990 5991 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5992 shared_smb = zfs_is_shared_smb(zhp, NULL); 5993 5994 if ((shared_nfs && shared_smb) || 5995 (shared_nfs && strcmp(shareopts, "on") == 0 && 5996 strcmp(smbshareopts, "off") == 0) || 5997 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5998 strcmp(shareopts, "off") == 0)) { 5999 if (!explicit) 6000 return (0); 6001 6002 (void) fprintf(stderr, gettext("cannot share " 6003 "'%s': filesystem already shared\n"), 6004 zfs_get_name(zhp)); 6005 return (1); 6006 } 6007 6008 if (!zfs_is_mounted(zhp, NULL) && 6009 zfs_mount(zhp, NULL, 0) != 0) 6010 return (1); 6011 6012 if (protocol == NULL) { 6013 if (zfs_shareall(zhp) != 0) 6014 return (1); 6015 } else if (strcmp(protocol, "nfs") == 0) { 6016 if (zfs_share_nfs(zhp)) 6017 return (1); 6018 } else if (strcmp(protocol, "smb") == 0) { 6019 if (zfs_share_smb(zhp)) 6020 return (1); 6021 } else { 6022 (void) fprintf(stderr, gettext("cannot share " 6023 "'%s': invalid share type '%s' " 6024 "specified\n"), 6025 zfs_get_name(zhp), protocol); 6026 return (1); 6027 } 6028 6029 break; 6030 6031 case OP_MOUNT: 6032 if (options == NULL) 6033 mnt.mnt_mntopts = ""; 6034 else 6035 mnt.mnt_mntopts = (char *)options; 6036 6037 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6038 zfs_is_mounted(zhp, NULL)) { 6039 if (!explicit) 6040 return (0); 6041 6042 (void) fprintf(stderr, gettext("cannot mount " 6043 "'%s': filesystem already mounted\n"), 6044 zfs_get_name(zhp)); 6045 return (1); 6046 } 6047 6048 if (zfs_mount(zhp, options, flags) != 0) 6049 return (1); 6050 break; 6051 } 6052 6053 return (0); 6054 } 6055 6056 /* 6057 * Reports progress in the form "(current/total)". Not thread-safe. 6058 */ 6059 static void 6060 report_mount_progress(int current, int total) 6061 { 6062 static time_t last_progress_time = 0; 6063 time_t now = time(NULL); 6064 char info[32]; 6065 6066 /* report 1..n instead of 0..n-1 */ 6067 ++current; 6068 6069 /* display header if we're here for the first time */ 6070 if (current == 1) { 6071 set_progress_header(gettext("Mounting ZFS filesystems")); 6072 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6073 /* too soon to report again */ 6074 return; 6075 } 6076 6077 last_progress_time = now; 6078 6079 (void) sprintf(info, "(%d/%d)", current, total); 6080 6081 if (current == total) 6082 finish_progress(info); 6083 else 6084 update_progress(info); 6085 } 6086 6087 /* 6088 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and 6089 * updates the progress meter. 6090 */ 6091 static int 6092 share_mount_one_cb(zfs_handle_t *zhp, void *arg) 6093 { 6094 share_mount_state_t *sms = arg; 6095 int ret; 6096 6097 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto, 6098 B_FALSE, sms->sm_options); 6099 6100 mutex_enter(&sms->sm_lock); 6101 if (ret != 0) 6102 sms->sm_status = ret; 6103 sms->sm_done++; 6104 if (sms->sm_verbose) 6105 report_mount_progress(sms->sm_done, sms->sm_total); 6106 mutex_exit(&sms->sm_lock); 6107 return (ret); 6108 } 6109 6110 static void 6111 append_options(char *mntopts, char *newopts) 6112 { 6113 int len = strlen(mntopts); 6114 6115 /* original length plus new string to append plus 1 for the comma */ 6116 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6117 (void) fprintf(stderr, gettext("the opts argument for " 6118 "'%c' option is too long (more than %d chars)\n"), 6119 "-o", MNT_LINE_MAX); 6120 usage(B_FALSE); 6121 } 6122 6123 if (*mntopts) 6124 mntopts[len++] = ','; 6125 6126 (void) strcpy(&mntopts[len], newopts); 6127 } 6128 6129 static int 6130 share_mount(int op, int argc, char **argv) 6131 { 6132 int do_all = 0; 6133 boolean_t verbose = B_FALSE; 6134 int c, ret = 0; 6135 char *options = NULL; 6136 int flags = 0; 6137 6138 /* check options */ 6139 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6140 != -1) { 6141 switch (c) { 6142 case 'a': 6143 do_all = 1; 6144 break; 6145 case 'v': 6146 verbose = B_TRUE; 6147 break; 6148 case 'o': 6149 if (*optarg == '\0') { 6150 (void) fprintf(stderr, gettext("empty mount " 6151 "options (-o) specified\n")); 6152 usage(B_FALSE); 6153 } 6154 6155 if (options == NULL) 6156 options = safe_malloc(MNT_LINE_MAX + 1); 6157 6158 /* option validation is done later */ 6159 append_options(options, optarg); 6160 break; 6161 6162 case 'O': 6163 flags |= MS_OVERLAY; 6164 break; 6165 case ':': 6166 (void) fprintf(stderr, gettext("missing argument for " 6167 "'%c' option\n"), optopt); 6168 usage(B_FALSE); 6169 break; 6170 case '?': 6171 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6172 optopt); 6173 usage(B_FALSE); 6174 } 6175 } 6176 6177 argc -= optind; 6178 argv += optind; 6179 6180 /* check number of arguments */ 6181 if (do_all) { 6182 char *protocol = NULL; 6183 6184 if (op == OP_SHARE && argc > 0) { 6185 if (strcmp(argv[0], "nfs") != 0 && 6186 strcmp(argv[0], "smb") != 0) { 6187 (void) fprintf(stderr, gettext("share type " 6188 "must be 'nfs' or 'smb'\n")); 6189 usage(B_FALSE); 6190 } 6191 protocol = argv[0]; 6192 argc--; 6193 argv++; 6194 } 6195 6196 if (argc != 0) { 6197 (void) fprintf(stderr, gettext("too many arguments\n")); 6198 usage(B_FALSE); 6199 } 6200 6201 start_progress_timer(); 6202 get_all_cb_t cb = { 0 }; 6203 get_all_datasets(&cb, verbose); 6204 6205 if (cb.cb_used == 0) 6206 return (0); 6207 6208 if (op == OP_SHARE) { 6209 sa_init_selective_arg_t sharearg; 6210 sharearg.zhandle_arr = cb.cb_handles; 6211 sharearg.zhandle_len = cb.cb_used; 6212 if ((ret = zfs_init_libshare_arg(g_zfs, 6213 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6214 (void) fprintf(stderr, gettext( 6215 "Could not initialize libshare, %d"), ret); 6216 return (ret); 6217 } 6218 } 6219 6220 share_mount_state_t share_mount_state = { 0 }; 6221 share_mount_state.sm_op = op; 6222 share_mount_state.sm_verbose = verbose; 6223 share_mount_state.sm_flags = flags; 6224 share_mount_state.sm_options = options; 6225 share_mount_state.sm_proto = protocol; 6226 share_mount_state.sm_total = cb.cb_used; 6227 (void) mutex_init(&share_mount_state.sm_lock, 6228 LOCK_NORMAL | LOCK_ERRORCHECK, NULL); 6229 /* 6230 * libshare isn't mt-safe, so only do the operation in parallel 6231 * if we're mounting. 6232 */ 6233 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used, 6234 share_mount_one_cb, &share_mount_state, op == OP_MOUNT); 6235 ret = share_mount_state.sm_status; 6236 6237 for (int i = 0; i < cb.cb_used; i++) 6238 zfs_close(cb.cb_handles[i]); 6239 free(cb.cb_handles); 6240 } else if (argc == 0) { 6241 struct mnttab entry; 6242 6243 if ((op == OP_SHARE) || (options != NULL)) { 6244 (void) fprintf(stderr, gettext("missing filesystem " 6245 "argument (specify -a for all)\n")); 6246 usage(B_FALSE); 6247 } 6248 6249 /* 6250 * When mount is given no arguments, go through /etc/mnttab and 6251 * display any active ZFS mounts. We hide any snapshots, since 6252 * they are controlled automatically. 6253 */ 6254 rewind(mnttab_file); 6255 while (getmntent(mnttab_file, &entry) == 0) { 6256 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6257 strchr(entry.mnt_special, '@') != NULL) 6258 continue; 6259 6260 (void) printf("%-30s %s\n", entry.mnt_special, 6261 entry.mnt_mountp); 6262 } 6263 6264 } else { 6265 zfs_handle_t *zhp; 6266 6267 if (argc > 1) { 6268 (void) fprintf(stderr, 6269 gettext("too many arguments\n")); 6270 usage(B_FALSE); 6271 } 6272 6273 if ((zhp = zfs_open(g_zfs, argv[0], 6274 ZFS_TYPE_FILESYSTEM)) == NULL) { 6275 ret = 1; 6276 } else { 6277 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6278 options); 6279 zfs_close(zhp); 6280 } 6281 } 6282 6283 return (ret); 6284 } 6285 6286 /* 6287 * zfs mount -a [nfs] 6288 * zfs mount filesystem 6289 * 6290 * Mount all filesystems, or mount the given filesystem. 6291 */ 6292 static int 6293 zfs_do_mount(int argc, char **argv) 6294 { 6295 return (share_mount(OP_MOUNT, argc, argv)); 6296 } 6297 6298 /* 6299 * zfs share -a [nfs | smb] 6300 * zfs share filesystem 6301 * 6302 * Share all filesystems, or share the given filesystem. 6303 */ 6304 static int 6305 zfs_do_share(int argc, char **argv) 6306 { 6307 return (share_mount(OP_SHARE, argc, argv)); 6308 } 6309 6310 typedef struct unshare_unmount_node { 6311 zfs_handle_t *un_zhp; 6312 char *un_mountp; 6313 uu_avl_node_t un_avlnode; 6314 } unshare_unmount_node_t; 6315 6316 /* ARGSUSED */ 6317 static int 6318 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6319 { 6320 const unshare_unmount_node_t *l = larg; 6321 const unshare_unmount_node_t *r = rarg; 6322 6323 return (strcmp(l->un_mountp, r->un_mountp)); 6324 } 6325 6326 /* 6327 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6328 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6329 * and unmount it appropriately. 6330 */ 6331 static int 6332 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6333 { 6334 zfs_handle_t *zhp; 6335 int ret = 0; 6336 struct stat64 statbuf; 6337 struct extmnttab entry; 6338 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6339 ino_t path_inode; 6340 6341 /* 6342 * Search for the path in /etc/mnttab. Rather than looking for the 6343 * specific path, which can be fooled by non-standard paths (i.e. ".." 6344 * or "//"), we stat() the path and search for the corresponding 6345 * (major,minor) device pair. 6346 */ 6347 if (stat64(path, &statbuf) != 0) { 6348 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6349 cmdname, path, strerror(errno)); 6350 return (1); 6351 } 6352 path_inode = statbuf.st_ino; 6353 6354 /* 6355 * Search for the given (major,minor) pair in the mount table. 6356 */ 6357 rewind(mnttab_file); 6358 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6359 if (entry.mnt_major == major(statbuf.st_dev) && 6360 entry.mnt_minor == minor(statbuf.st_dev)) 6361 break; 6362 } 6363 if (ret != 0) { 6364 if (op == OP_SHARE) { 6365 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6366 "currently mounted\n"), cmdname, path); 6367 return (1); 6368 } 6369 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6370 path); 6371 if ((ret = umount2(path, flags)) != 0) 6372 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6373 strerror(errno)); 6374 return (ret != 0); 6375 } 6376 6377 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6378 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6379 "filesystem\n"), cmdname, path); 6380 return (1); 6381 } 6382 6383 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6384 ZFS_TYPE_FILESYSTEM)) == NULL) 6385 return (1); 6386 6387 ret = 1; 6388 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6389 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6390 cmdname, path, strerror(errno)); 6391 goto out; 6392 } else if (statbuf.st_ino != path_inode) { 6393 (void) fprintf(stderr, gettext("cannot " 6394 "%s '%s': not a mountpoint\n"), cmdname, path); 6395 goto out; 6396 } 6397 6398 if (op == OP_SHARE) { 6399 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6400 char smbshare_prop[ZFS_MAXPROPLEN]; 6401 6402 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6403 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6404 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6405 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6406 6407 if (strcmp(nfs_mnt_prop, "off") == 0 && 6408 strcmp(smbshare_prop, "off") == 0) { 6409 (void) fprintf(stderr, gettext("cannot unshare " 6410 "'%s': legacy share\n"), path); 6411 (void) fprintf(stderr, gettext("use " 6412 "unshare(1M) to unshare this filesystem\n")); 6413 } else if (!zfs_is_shared(zhp)) { 6414 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6415 "not currently shared\n"), path); 6416 } else { 6417 ret = zfs_unshareall_bypath(zhp, path); 6418 } 6419 } else { 6420 char mtpt_prop[ZFS_MAXPROPLEN]; 6421 6422 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6423 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6424 6425 if (is_manual) { 6426 ret = zfs_unmount(zhp, NULL, flags); 6427 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6428 (void) fprintf(stderr, gettext("cannot unmount " 6429 "'%s': legacy mountpoint\n"), 6430 zfs_get_name(zhp)); 6431 (void) fprintf(stderr, gettext("use umount(1M) " 6432 "to unmount this filesystem\n")); 6433 } else { 6434 ret = zfs_unmountall(zhp, flags); 6435 } 6436 } 6437 6438 out: 6439 zfs_close(zhp); 6440 6441 return (ret != 0); 6442 } 6443 6444 /* 6445 * Generic callback for unsharing or unmounting a filesystem. 6446 */ 6447 static int 6448 unshare_unmount(int op, int argc, char **argv) 6449 { 6450 int do_all = 0; 6451 int flags = 0; 6452 int ret = 0; 6453 int c; 6454 zfs_handle_t *zhp; 6455 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6456 char sharesmb[ZFS_MAXPROPLEN]; 6457 6458 /* check options */ 6459 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6460 switch (c) { 6461 case 'a': 6462 do_all = 1; 6463 break; 6464 case 'f': 6465 flags = MS_FORCE; 6466 break; 6467 case '?': 6468 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6469 optopt); 6470 usage(B_FALSE); 6471 } 6472 } 6473 6474 argc -= optind; 6475 argv += optind; 6476 6477 if (do_all) { 6478 /* 6479 * We could make use of zfs_for_each() to walk all datasets in 6480 * the system, but this would be very inefficient, especially 6481 * since we would have to linearly search /etc/mnttab for each 6482 * one. Instead, do one pass through /etc/mnttab looking for 6483 * zfs entries and call zfs_unmount() for each one. 6484 * 6485 * Things get a little tricky if the administrator has created 6486 * mountpoints beneath other ZFS filesystems. In this case, we 6487 * have to unmount the deepest filesystems first. To accomplish 6488 * this, we place all the mountpoints in an AVL tree sorted by 6489 * the special type (dataset name), and walk the result in 6490 * reverse to make sure to get any snapshots first. 6491 */ 6492 struct mnttab entry; 6493 uu_avl_pool_t *pool; 6494 uu_avl_t *tree = NULL; 6495 unshare_unmount_node_t *node; 6496 uu_avl_index_t idx; 6497 uu_avl_walk_t *walk; 6498 6499 if (argc != 0) { 6500 (void) fprintf(stderr, gettext("too many arguments\n")); 6501 usage(B_FALSE); 6502 } 6503 6504 if (((pool = uu_avl_pool_create("unmount_pool", 6505 sizeof (unshare_unmount_node_t), 6506 offsetof(unshare_unmount_node_t, un_avlnode), 6507 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6508 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6509 nomem(); 6510 6511 rewind(mnttab_file); 6512 while (getmntent(mnttab_file, &entry) == 0) { 6513 6514 /* ignore non-ZFS entries */ 6515 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6516 continue; 6517 6518 /* ignore snapshots */ 6519 if (strchr(entry.mnt_special, '@') != NULL) 6520 continue; 6521 6522 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6523 ZFS_TYPE_FILESYSTEM)) == NULL) { 6524 ret = 1; 6525 continue; 6526 } 6527 6528 /* 6529 * Ignore datasets that are excluded/restricted by 6530 * parent pool name. 6531 */ 6532 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6533 zfs_close(zhp); 6534 continue; 6535 } 6536 6537 switch (op) { 6538 case OP_SHARE: 6539 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6540 nfs_mnt_prop, 6541 sizeof (nfs_mnt_prop), 6542 NULL, NULL, 0, B_FALSE) == 0); 6543 if (strcmp(nfs_mnt_prop, "off") != 0) 6544 break; 6545 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6546 nfs_mnt_prop, 6547 sizeof (nfs_mnt_prop), 6548 NULL, NULL, 0, B_FALSE) == 0); 6549 if (strcmp(nfs_mnt_prop, "off") == 0) 6550 continue; 6551 break; 6552 case OP_MOUNT: 6553 /* Ignore legacy mounts */ 6554 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6555 nfs_mnt_prop, 6556 sizeof (nfs_mnt_prop), 6557 NULL, NULL, 0, B_FALSE) == 0); 6558 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6559 continue; 6560 /* Ignore canmount=noauto mounts */ 6561 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6562 ZFS_CANMOUNT_NOAUTO) 6563 continue; 6564 default: 6565 break; 6566 } 6567 6568 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6569 node->un_zhp = zhp; 6570 node->un_mountp = safe_strdup(entry.mnt_mountp); 6571 6572 uu_avl_node_init(node, &node->un_avlnode, pool); 6573 6574 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6575 uu_avl_insert(tree, node, idx); 6576 } else { 6577 zfs_close(node->un_zhp); 6578 free(node->un_mountp); 6579 free(node); 6580 } 6581 } 6582 6583 /* 6584 * Walk the AVL tree in reverse, unmounting each filesystem and 6585 * removing it from the AVL tree in the process. 6586 */ 6587 if ((walk = uu_avl_walk_start(tree, 6588 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6589 nomem(); 6590 6591 while ((node = uu_avl_walk_next(walk)) != NULL) { 6592 uu_avl_remove(tree, node); 6593 6594 switch (op) { 6595 case OP_SHARE: 6596 if (zfs_unshareall_bypath(node->un_zhp, 6597 node->un_mountp) != 0) 6598 ret = 1; 6599 break; 6600 6601 case OP_MOUNT: 6602 if (zfs_unmount(node->un_zhp, 6603 node->un_mountp, flags) != 0) 6604 ret = 1; 6605 break; 6606 } 6607 6608 zfs_close(node->un_zhp); 6609 free(node->un_mountp); 6610 free(node); 6611 } 6612 6613 uu_avl_walk_end(walk); 6614 uu_avl_destroy(tree); 6615 uu_avl_pool_destroy(pool); 6616 6617 } else { 6618 if (argc != 1) { 6619 if (argc == 0) 6620 (void) fprintf(stderr, 6621 gettext("missing filesystem argument\n")); 6622 else 6623 (void) fprintf(stderr, 6624 gettext("too many arguments\n")); 6625 usage(B_FALSE); 6626 } 6627 6628 /* 6629 * We have an argument, but it may be a full path or a ZFS 6630 * filesystem. Pass full paths off to unmount_path() (shared by 6631 * manual_unmount), otherwise open the filesystem and pass to 6632 * zfs_unmount(). 6633 */ 6634 if (argv[0][0] == '/') 6635 return (unshare_unmount_path(op, argv[0], 6636 flags, B_FALSE)); 6637 6638 if ((zhp = zfs_open(g_zfs, argv[0], 6639 ZFS_TYPE_FILESYSTEM)) == NULL) 6640 return (1); 6641 6642 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6643 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6644 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6645 NULL, 0, B_FALSE) == 0); 6646 6647 switch (op) { 6648 case OP_SHARE: 6649 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6650 nfs_mnt_prop, 6651 sizeof (nfs_mnt_prop), 6652 NULL, NULL, 0, B_FALSE) == 0); 6653 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6654 sharesmb, sizeof (sharesmb), NULL, NULL, 6655 0, B_FALSE) == 0); 6656 6657 if (strcmp(nfs_mnt_prop, "off") == 0 && 6658 strcmp(sharesmb, "off") == 0) { 6659 (void) fprintf(stderr, gettext("cannot " 6660 "unshare '%s': legacy share\n"), 6661 zfs_get_name(zhp)); 6662 (void) fprintf(stderr, gettext("use " 6663 "unshare(1M) to unshare this " 6664 "filesystem\n")); 6665 ret = 1; 6666 } else if (!zfs_is_shared(zhp)) { 6667 (void) fprintf(stderr, gettext("cannot " 6668 "unshare '%s': not currently " 6669 "shared\n"), zfs_get_name(zhp)); 6670 ret = 1; 6671 } else if (zfs_unshareall(zhp) != 0) { 6672 ret = 1; 6673 } 6674 break; 6675 6676 case OP_MOUNT: 6677 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6678 (void) fprintf(stderr, gettext("cannot " 6679 "unmount '%s': legacy " 6680 "mountpoint\n"), zfs_get_name(zhp)); 6681 (void) fprintf(stderr, gettext("use " 6682 "umount(1M) to unmount this " 6683 "filesystem\n")); 6684 ret = 1; 6685 } else if (!zfs_is_mounted(zhp, NULL)) { 6686 (void) fprintf(stderr, gettext("cannot " 6687 "unmount '%s': not currently " 6688 "mounted\n"), 6689 zfs_get_name(zhp)); 6690 ret = 1; 6691 } else if (zfs_unmountall(zhp, flags) != 0) { 6692 ret = 1; 6693 } 6694 break; 6695 } 6696 6697 zfs_close(zhp); 6698 } 6699 6700 return (ret); 6701 } 6702 6703 /* 6704 * zfs unmount -a 6705 * zfs unmount filesystem 6706 * 6707 * Unmount all filesystems, or a specific ZFS filesystem. 6708 */ 6709 static int 6710 zfs_do_unmount(int argc, char **argv) 6711 { 6712 return (unshare_unmount(OP_MOUNT, argc, argv)); 6713 } 6714 6715 /* 6716 * zfs unshare -a 6717 * zfs unshare filesystem 6718 * 6719 * Unshare all filesystems, or a specific ZFS filesystem. 6720 */ 6721 static int 6722 zfs_do_unshare(int argc, char **argv) 6723 { 6724 return (unshare_unmount(OP_SHARE, argc, argv)); 6725 } 6726 6727 /* 6728 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6729 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6730 */ 6731 static int 6732 manual_mount(int argc, char **argv) 6733 { 6734 zfs_handle_t *zhp; 6735 char mountpoint[ZFS_MAXPROPLEN]; 6736 char mntopts[MNT_LINE_MAX] = { '\0' }; 6737 int ret = 0; 6738 int c; 6739 int flags = 0; 6740 char *dataset, *path; 6741 6742 /* check options */ 6743 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6744 switch (c) { 6745 case 'o': 6746 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6747 break; 6748 case 'O': 6749 flags |= MS_OVERLAY; 6750 break; 6751 case 'm': 6752 flags |= MS_NOMNTTAB; 6753 break; 6754 case ':': 6755 (void) fprintf(stderr, gettext("missing argument for " 6756 "'%c' option\n"), optopt); 6757 usage(B_FALSE); 6758 break; 6759 case '?': 6760 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6761 optopt); 6762 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6763 "<path>\n")); 6764 return (2); 6765 } 6766 } 6767 6768 argc -= optind; 6769 argv += optind; 6770 6771 /* check that we only have two arguments */ 6772 if (argc != 2) { 6773 if (argc == 0) 6774 (void) fprintf(stderr, gettext("missing dataset " 6775 "argument\n")); 6776 else if (argc == 1) 6777 (void) fprintf(stderr, 6778 gettext("missing mountpoint argument\n")); 6779 else 6780 (void) fprintf(stderr, gettext("too many arguments\n")); 6781 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6782 return (2); 6783 } 6784 6785 dataset = argv[0]; 6786 path = argv[1]; 6787 6788 /* try to open the dataset */ 6789 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6790 return (1); 6791 6792 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6793 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6794 6795 /* check for legacy mountpoint and complain appropriately */ 6796 ret = 0; 6797 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6798 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6799 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6800 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6801 strerror(errno)); 6802 ret = 1; 6803 } 6804 } else { 6805 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6806 "mounted using 'mount -F zfs'\n"), dataset); 6807 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6808 "instead.\n"), path); 6809 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6810 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6811 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6812 "information.\n")); 6813 ret = 1; 6814 } 6815 6816 return (ret); 6817 } 6818 6819 /* 6820 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6821 * unmounts of non-legacy filesystems, as this is the dominant administrative 6822 * interface. 6823 */ 6824 static int 6825 manual_unmount(int argc, char **argv) 6826 { 6827 int flags = 0; 6828 int c; 6829 6830 /* check options */ 6831 while ((c = getopt(argc, argv, "f")) != -1) { 6832 switch (c) { 6833 case 'f': 6834 flags = MS_FORCE; 6835 break; 6836 case '?': 6837 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6838 optopt); 6839 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6840 "<path>\n")); 6841 return (2); 6842 } 6843 } 6844 6845 argc -= optind; 6846 argv += optind; 6847 6848 /* check arguments */ 6849 if (argc != 1) { 6850 if (argc == 0) 6851 (void) fprintf(stderr, gettext("missing path " 6852 "argument\n")); 6853 else 6854 (void) fprintf(stderr, gettext("too many arguments\n")); 6855 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6856 return (2); 6857 } 6858 6859 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6860 } 6861 6862 static int 6863 find_command_idx(char *command, int *idx) 6864 { 6865 int i; 6866 6867 for (i = 0; i < NCOMMAND; i++) { 6868 if (command_table[i].name == NULL) 6869 continue; 6870 6871 if (strcmp(command, command_table[i].name) == 0) { 6872 *idx = i; 6873 return (0); 6874 } 6875 } 6876 return (1); 6877 } 6878 6879 static int 6880 zfs_do_diff(int argc, char **argv) 6881 { 6882 zfs_handle_t *zhp; 6883 int flags = 0; 6884 char *tosnap = NULL; 6885 char *fromsnap = NULL; 6886 char *atp, *copy; 6887 int err = 0; 6888 int c; 6889 6890 while ((c = getopt(argc, argv, "FHt")) != -1) { 6891 switch (c) { 6892 case 'F': 6893 flags |= ZFS_DIFF_CLASSIFY; 6894 break; 6895 case 'H': 6896 flags |= ZFS_DIFF_PARSEABLE; 6897 break; 6898 case 't': 6899 flags |= ZFS_DIFF_TIMESTAMP; 6900 break; 6901 default: 6902 (void) fprintf(stderr, 6903 gettext("invalid option '%c'\n"), optopt); 6904 usage(B_FALSE); 6905 } 6906 } 6907 6908 argc -= optind; 6909 argv += optind; 6910 6911 if (argc < 1) { 6912 (void) fprintf(stderr, 6913 gettext("must provide at least one snapshot name\n")); 6914 usage(B_FALSE); 6915 } 6916 6917 if (argc > 2) { 6918 (void) fprintf(stderr, gettext("too many arguments\n")); 6919 usage(B_FALSE); 6920 } 6921 6922 fromsnap = argv[0]; 6923 tosnap = (argc == 2) ? argv[1] : NULL; 6924 6925 copy = NULL; 6926 if (*fromsnap != '@') 6927 copy = strdup(fromsnap); 6928 else if (tosnap) 6929 copy = strdup(tosnap); 6930 if (copy == NULL) 6931 usage(B_FALSE); 6932 6933 if ((atp = strchr(copy, '@')) != NULL) 6934 *atp = '\0'; 6935 6936 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6937 return (1); 6938 6939 free(copy); 6940 6941 /* 6942 * Ignore SIGPIPE so that the library can give us 6943 * information on any failure 6944 */ 6945 (void) sigignore(SIGPIPE); 6946 6947 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6948 6949 zfs_close(zhp); 6950 6951 return (err != 0); 6952 } 6953 6954 static int 6955 zfs_do_remap(int argc, char **argv) 6956 { 6957 const char *fsname; 6958 int err = 0; 6959 if (argc != 2) { 6960 (void) fprintf(stderr, gettext("wrong number of arguments\n")); 6961 usage(B_FALSE); 6962 } 6963 6964 fsname = argv[1]; 6965 err = zfs_remap_indirects(g_zfs, fsname); 6966 6967 return (err); 6968 } 6969 6970 /* 6971 * zfs bookmark <fs@snap> <fs#bmark> 6972 * 6973 * Creates a bookmark with the given name from the given snapshot. 6974 */ 6975 static int 6976 zfs_do_bookmark(int argc, char **argv) 6977 { 6978 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 6979 zfs_handle_t *zhp; 6980 nvlist_t *nvl; 6981 int ret = 0; 6982 int c; 6983 6984 /* check options */ 6985 while ((c = getopt(argc, argv, "")) != -1) { 6986 switch (c) { 6987 case '?': 6988 (void) fprintf(stderr, 6989 gettext("invalid option '%c'\n"), optopt); 6990 goto usage; 6991 } 6992 } 6993 6994 argc -= optind; 6995 argv += optind; 6996 6997 /* check number of arguments */ 6998 if (argc < 1) { 6999 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7000 goto usage; 7001 } 7002 if (argc < 2) { 7003 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7004 goto usage; 7005 } 7006 7007 if (strchr(argv[1], '#') == NULL) { 7008 (void) fprintf(stderr, 7009 gettext("invalid bookmark name '%s' -- " 7010 "must contain a '#'\n"), argv[1]); 7011 goto usage; 7012 } 7013 7014 if (argv[0][0] == '@') { 7015 /* 7016 * Snapshot name begins with @. 7017 * Default to same fs as bookmark. 7018 */ 7019 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7020 *strchr(snapname, '#') = '\0'; 7021 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7022 } else { 7023 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7024 } 7025 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7026 if (zhp == NULL) 7027 goto usage; 7028 zfs_close(zhp); 7029 7030 7031 nvl = fnvlist_alloc(); 7032 fnvlist_add_string(nvl, argv[1], snapname); 7033 ret = lzc_bookmark(nvl, NULL); 7034 fnvlist_free(nvl); 7035 7036 if (ret != 0) { 7037 const char *err_msg; 7038 char errbuf[1024]; 7039 7040 (void) snprintf(errbuf, sizeof (errbuf), 7041 dgettext(TEXT_DOMAIN, 7042 "cannot create bookmark '%s'"), argv[1]); 7043 7044 switch (ret) { 7045 case EXDEV: 7046 err_msg = "bookmark is in a different pool"; 7047 break; 7048 case EEXIST: 7049 err_msg = "bookmark exists"; 7050 break; 7051 case EINVAL: 7052 err_msg = "invalid argument"; 7053 break; 7054 case ENOTSUP: 7055 err_msg = "bookmark feature not enabled"; 7056 break; 7057 case ENOSPC: 7058 err_msg = "out of space"; 7059 break; 7060 default: 7061 err_msg = "unknown error"; 7062 break; 7063 } 7064 (void) fprintf(stderr, "%s: %s\n", errbuf, 7065 dgettext(TEXT_DOMAIN, err_msg)); 7066 } 7067 7068 return (ret != 0); 7069 7070 usage: 7071 usage(B_FALSE); 7072 return (-1); 7073 } 7074 7075 static int 7076 zfs_do_channel_program(int argc, char **argv) 7077 { 7078 int ret, fd; 7079 char c; 7080 char *progbuf, *filename, *poolname; 7081 size_t progsize, progread; 7082 nvlist_t *outnvl; 7083 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7084 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7085 boolean_t sync_flag = B_TRUE; 7086 zpool_handle_t *zhp; 7087 7088 /* check options */ 7089 while (-1 != 7090 (c = getopt(argc, argv, "nt:(instr-limit)m:(memory-limit)"))) { 7091 switch (c) { 7092 case 't': 7093 case 'm': { 7094 uint64_t arg; 7095 char *endp; 7096 7097 errno = 0; 7098 arg = strtoull(optarg, &endp, 0); 7099 if (errno != 0 || *endp != '\0') { 7100 (void) fprintf(stderr, gettext( 7101 "invalid argument " 7102 "'%s': expected integer\n"), optarg); 7103 goto usage; 7104 } 7105 7106 if (c == 't') { 7107 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) { 7108 (void) fprintf(stderr, gettext( 7109 "Invalid instruction limit: " 7110 "%s\n"), optarg); 7111 return (1); 7112 } else { 7113 instrlimit = arg; 7114 } 7115 } else { 7116 ASSERT3U(c, ==, 'm'); 7117 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) { 7118 (void) fprintf(stderr, gettext( 7119 "Invalid memory limit: " 7120 "%s\n"), optarg); 7121 return (1); 7122 } else { 7123 memlimit = arg; 7124 } 7125 } 7126 break; 7127 } 7128 case 'n': { 7129 sync_flag = B_FALSE; 7130 break; 7131 } 7132 case '?': 7133 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7134 optopt); 7135 goto usage; 7136 } 7137 } 7138 7139 argc -= optind; 7140 argv += optind; 7141 7142 if (argc < 2) { 7143 (void) fprintf(stderr, 7144 gettext("invalid number of arguments\n")); 7145 goto usage; 7146 } 7147 7148 poolname = argv[0]; 7149 filename = argv[1]; 7150 if (strcmp(filename, "-") == 0) { 7151 fd = 0; 7152 filename = "standard input"; 7153 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7154 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7155 filename, strerror(errno)); 7156 return (1); 7157 } 7158 7159 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7160 (void) fprintf(stderr, gettext("cannot open pool '%s'"), 7161 poolname); 7162 return (1); 7163 } 7164 zpool_close(zhp); 7165 7166 /* 7167 * Read in the channel program, expanding the program buffer as 7168 * necessary. 7169 */ 7170 progread = 0; 7171 progsize = 1024; 7172 progbuf = safe_malloc(progsize); 7173 do { 7174 ret = read(fd, progbuf + progread, progsize - progread); 7175 progread += ret; 7176 if (progread == progsize && ret > 0) { 7177 progsize *= 2; 7178 progbuf = safe_realloc(progbuf, progsize); 7179 } 7180 } while (ret > 0); 7181 7182 if (fd != 0) 7183 (void) close(fd); 7184 if (ret < 0) { 7185 free(progbuf); 7186 (void) fprintf(stderr, 7187 gettext("cannot read '%s': %s\n"), 7188 filename, strerror(errno)); 7189 return (1); 7190 } 7191 progbuf[progread] = '\0'; 7192 7193 /* 7194 * Any remaining arguments are passed as arguments to the lua script as 7195 * a string array: 7196 * { 7197 * "argv" -> [ "arg 1", ... "arg n" ], 7198 * } 7199 */ 7200 nvlist_t *argnvl = fnvlist_alloc(); 7201 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 7202 7203 if (sync_flag) { 7204 ret = lzc_channel_program(poolname, progbuf, 7205 instrlimit, memlimit, argnvl, &outnvl); 7206 } else { 7207 ret = lzc_channel_program_nosync(poolname, progbuf, 7208 instrlimit, memlimit, argnvl, &outnvl); 7209 } 7210 7211 if (ret != 0) { 7212 /* 7213 * On error, report the error message handed back by lua if one 7214 * exists. Otherwise, generate an appropriate error message, 7215 * falling back on strerror() for an unexpected return code. 7216 */ 7217 char *errstring = NULL; 7218 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) { 7219 (void) nvlist_lookup_string(outnvl, 7220 ZCP_RET_ERROR, &errstring); 7221 if (errstring == NULL) 7222 errstring = strerror(ret); 7223 } else { 7224 switch (ret) { 7225 case EINVAL: 7226 errstring = 7227 "Invalid instruction or memory limit."; 7228 break; 7229 case ENOMEM: 7230 errstring = "Return value too large."; 7231 break; 7232 case ENOSPC: 7233 errstring = "Memory limit exhausted."; 7234 break; 7235 case ETIME: 7236 errstring = "Timed out."; 7237 break; 7238 case EPERM: 7239 errstring = "Permission denied. Channel " 7240 "programs must be run as root."; 7241 break; 7242 default: 7243 errstring = strerror(ret); 7244 } 7245 } 7246 (void) fprintf(stderr, 7247 gettext("Channel program execution failed:\n%s\n"), 7248 errstring); 7249 } else { 7250 (void) printf("Channel program fully executed "); 7251 if (nvlist_empty(outnvl)) { 7252 (void) printf("with no return value.\n"); 7253 } else { 7254 (void) printf("with return value:\n"); 7255 dump_nvlist(outnvl, 4); 7256 } 7257 } 7258 7259 free(progbuf); 7260 fnvlist_free(outnvl); 7261 fnvlist_free(argnvl); 7262 return (ret != 0); 7263 7264 usage: 7265 usage(B_FALSE); 7266 return (-1); 7267 } 7268 7269 int 7270 main(int argc, char **argv) 7271 { 7272 int ret = 0; 7273 int i; 7274 char *progname; 7275 char *cmdname; 7276 7277 (void) setlocale(LC_ALL, ""); 7278 (void) textdomain(TEXT_DOMAIN); 7279 7280 opterr = 0; 7281 7282 if ((g_zfs = libzfs_init()) == NULL) { 7283 (void) fprintf(stderr, gettext("internal error: failed to " 7284 "initialize ZFS library\n")); 7285 return (1); 7286 } 7287 7288 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7289 7290 libzfs_print_on_error(g_zfs, B_TRUE); 7291 7292 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7293 (void) fprintf(stderr, gettext("internal error: unable to " 7294 "open %s\n"), MNTTAB); 7295 return (1); 7296 } 7297 7298 /* 7299 * This command also doubles as the /etc/fs mount and unmount program. 7300 * Determine if we should take this behavior based on argv[0]. 7301 */ 7302 progname = basename(argv[0]); 7303 if (strcmp(progname, "mount") == 0) { 7304 ret = manual_mount(argc, argv); 7305 } else if (strcmp(progname, "umount") == 0) { 7306 ret = manual_unmount(argc, argv); 7307 } else { 7308 /* 7309 * Make sure the user has specified some command. 7310 */ 7311 if (argc < 2) { 7312 (void) fprintf(stderr, gettext("missing command\n")); 7313 usage(B_FALSE); 7314 } 7315 7316 cmdname = argv[1]; 7317 7318 /* 7319 * The 'umount' command is an alias for 'unmount' 7320 */ 7321 if (strcmp(cmdname, "umount") == 0) 7322 cmdname = "unmount"; 7323 7324 /* 7325 * The 'recv' command is an alias for 'receive' 7326 */ 7327 if (strcmp(cmdname, "recv") == 0) 7328 cmdname = "receive"; 7329 7330 /* 7331 * The 'snap' command is an alias for 'snapshot' 7332 */ 7333 if (strcmp(cmdname, "snap") == 0) 7334 cmdname = "snapshot"; 7335 7336 /* 7337 * Special case '-?' 7338 */ 7339 if (strcmp(cmdname, "-?") == 0) 7340 usage(B_TRUE); 7341 7342 /* 7343 * Run the appropriate command. 7344 */ 7345 libzfs_mnttab_cache(g_zfs, B_TRUE); 7346 if (find_command_idx(cmdname, &i) == 0) { 7347 current_command = &command_table[i]; 7348 ret = command_table[i].func(argc - 1, argv + 1); 7349 } else if (strchr(cmdname, '=') != NULL) { 7350 verify(find_command_idx("set", &i) == 0); 7351 current_command = &command_table[i]; 7352 ret = command_table[i].func(argc, argv); 7353 } else { 7354 (void) fprintf(stderr, gettext("unrecognized " 7355 "command '%s'\n"), cmdname); 7356 usage(B_FALSE); 7357 } 7358 libzfs_mnttab_cache(g_zfs, B_FALSE); 7359 } 7360 7361 (void) fclose(mnttab_file); 7362 7363 if (ret == 0 && log_history) 7364 (void) zpool_log_history(g_zfs, history_str); 7365 7366 libzfs_fini(g_zfs); 7367 7368 /* 7369 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7370 * for the purposes of running ::findleaks. 7371 */ 7372 if (getenv("ZFS_ABORT") != NULL) { 7373 (void) printf("dumping core by request\n"); 7374 abort(); 7375 } 7376 7377 return (ret); 7378 } 7379