zfs_main.c revision 297118
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 28 * All rights reserved. 29 * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 30 * Copyright (c) 2013 Steven Hartland. All rights reserved. 31 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 32 * Copyright (c) 2014 Integros [integros.com] 33 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 34 */ 35 36#include <assert.h> 37#include <ctype.h> 38#include <errno.h> 39#include <libgen.h> 40#include <libintl.h> 41#include <libuutil.h> 42#include <libnvpair.h> 43#include <locale.h> 44#include <stddef.h> 45#include <stdio.h> 46#include <stdlib.h> 47#include <strings.h> 48#include <unistd.h> 49#include <fcntl.h> 50#include <zone.h> 51#include <grp.h> 52#include <pwd.h> 53#include <signal.h> 54#include <sys/list.h> 55#include <sys/mntent.h> 56#include <sys/mnttab.h> 57#include <sys/mount.h> 58#include <sys/stat.h> 59#include <sys/fs/zfs.h> 60#include <sys/types.h> 61#include <time.h> 62#include <err.h> 63#include <jail.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#ifdef illumos 71#include <aclutils.h> 72#include <directory.h> 73#include <idmap.h> 74#endif 75 76#include "zfs_iter.h" 77#include "zfs_util.h" 78#include "zfs_comutil.h" 79 80libzfs_handle_t *g_zfs; 81 82static FILE *mnttab_file; 83static char history_str[HIS_MAX_RECORD_LEN]; 84static boolean_t log_history = B_TRUE; 85 86static int zfs_do_clone(int argc, char **argv); 87static int zfs_do_create(int argc, char **argv); 88static int zfs_do_destroy(int argc, char **argv); 89static int zfs_do_get(int argc, char **argv); 90static int zfs_do_inherit(int argc, char **argv); 91static int zfs_do_list(int argc, char **argv); 92static int zfs_do_mount(int argc, char **argv); 93static int zfs_do_rename(int argc, char **argv); 94static int zfs_do_rollback(int argc, char **argv); 95static int zfs_do_set(int argc, char **argv); 96static int zfs_do_upgrade(int argc, char **argv); 97static int zfs_do_snapshot(int argc, char **argv); 98static int zfs_do_unmount(int argc, char **argv); 99static int zfs_do_share(int argc, char **argv); 100static int zfs_do_unshare(int argc, char **argv); 101static int zfs_do_send(int argc, char **argv); 102static int zfs_do_receive(int argc, char **argv); 103static int zfs_do_promote(int argc, char **argv); 104static int zfs_do_userspace(int argc, char **argv); 105static int zfs_do_allow(int argc, char **argv); 106static int zfs_do_unallow(int argc, char **argv); 107static int zfs_do_hold(int argc, char **argv); 108static int zfs_do_holds(int argc, char **argv); 109static int zfs_do_release(int argc, char **argv); 110static int zfs_do_diff(int argc, char **argv); 111static int zfs_do_jail(int argc, char **argv); 112static int zfs_do_unjail(int argc, char **argv); 113static int zfs_do_bookmark(int argc, char **argv); 114 115/* 116 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 117 */ 118 119#ifdef DEBUG 120const char * 121_umem_debug_init(void) 122{ 123 return ("default,verbose"); /* $UMEM_DEBUG setting */ 124} 125 126const char * 127_umem_logging_init(void) 128{ 129 return ("fail,contents"); /* $UMEM_LOGGING setting */ 130} 131#endif 132 133typedef enum { 134 HELP_CLONE, 135 HELP_CREATE, 136 HELP_DESTROY, 137 HELP_GET, 138 HELP_INHERIT, 139 HELP_UPGRADE, 140 HELP_JAIL, 141 HELP_UNJAIL, 142 HELP_LIST, 143 HELP_MOUNT, 144 HELP_PROMOTE, 145 HELP_RECEIVE, 146 HELP_RENAME, 147 HELP_ROLLBACK, 148 HELP_SEND, 149 HELP_SET, 150 HELP_SHARE, 151 HELP_SNAPSHOT, 152 HELP_UNMOUNT, 153 HELP_UNSHARE, 154 HELP_ALLOW, 155 HELP_UNALLOW, 156 HELP_USERSPACE, 157 HELP_GROUPSPACE, 158 HELP_HOLD, 159 HELP_HOLDS, 160 HELP_RELEASE, 161 HELP_DIFF, 162 HELP_BOOKMARK, 163} zfs_help_t; 164 165typedef struct zfs_command { 166 const char *name; 167 int (*func)(int argc, char **argv); 168 zfs_help_t usage; 169} zfs_command_t; 170 171/* 172 * Master command table. Each ZFS command has a name, associated function, and 173 * usage message. The usage messages need to be internationalized, so we have 174 * to have a function to return the usage message based on a command index. 175 * 176 * These commands are organized according to how they are displayed in the usage 177 * message. An empty command (one with a NULL name) indicates an empty line in 178 * the generic usage message. 179 */ 180static zfs_command_t command_table[] = { 181 { "create", zfs_do_create, HELP_CREATE }, 182 { "destroy", zfs_do_destroy, HELP_DESTROY }, 183 { NULL }, 184 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 185 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 186 { "clone", zfs_do_clone, HELP_CLONE }, 187 { "promote", zfs_do_promote, HELP_PROMOTE }, 188 { "rename", zfs_do_rename, HELP_RENAME }, 189 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 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 { NULL }, 217 { "jail", zfs_do_jail, HELP_JAIL }, 218 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 219}; 220 221#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 222 223zfs_command_t *current_command; 224 225static const char * 226get_usage(zfs_help_t idx) 227{ 228 switch (idx) { 229 case HELP_CLONE: 230 return (gettext("\tclone [-p] [-o property=value] ... " 231 "<snapshot> <filesystem|volume>\n")); 232 case HELP_CREATE: 233 return (gettext("\tcreate [-pu] [-o property=value] ... " 234 "<filesystem>\n" 235 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 236 "-V <size> <volume>\n")); 237 case HELP_DESTROY: 238 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 239 "\tdestroy [-dnpRrv] " 240 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 241 "\tdestroy <filesystem|volume>#<bookmark>\n")); 242 case HELP_GET: 243 return (gettext("\tget [-rHp] [-d max] " 244 "[-o \"all\" | field[,...]]\n" 245 "\t [-t type[,...]] [-s source[,...]]\n" 246 "\t <\"all\" | property[,...]> " 247 "[filesystem|volume|snapshot] ...\n")); 248 case HELP_INHERIT: 249 return (gettext("\tinherit [-rS] <property> " 250 "<filesystem|volume|snapshot> ...\n")); 251 case HELP_UPGRADE: 252 return (gettext("\tupgrade [-v]\n" 253 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 254 case HELP_JAIL: 255 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 256 case HELP_UNJAIL: 257 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 258 case HELP_LIST: 259 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 260 "[-s property]...\n\t [-S property]... [-t type[,...]] " 261 "[filesystem|volume|snapshot] ...\n")); 262 case HELP_MOUNT: 263 return (gettext("\tmount\n" 264 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 265 case HELP_PROMOTE: 266 return (gettext("\tpromote <clone-filesystem>\n")); 267 case HELP_RECEIVE: 268 return (gettext("\treceive|recv [-vnsFu] <filesystem|volume|" 269 "snapshot>\n" 270 "\treceive|recv [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 271 "<filesystem>\n" 272 "\treceive|recv -A <filesystem|volume>\n")); 273 case HELP_RENAME: 274 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 275 "<filesystem|volume|snapshot>\n" 276 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 277 "\trename -r <snapshot> <snapshot>\n" 278 "\trename -u [-p] <filesystem> <filesystem>")); 279 case HELP_ROLLBACK: 280 return (gettext("\trollback [-rRf] <snapshot>\n")); 281 case HELP_SEND: 282 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 283 "<snapshot>\n" 284 "\tsend [-Le] [-i snapshot|bookmark] " 285 "<filesystem|volume|snapshot>\n" 286 "\tsend [-nvPe] -t <receive_resume_token>\n")); 287 case HELP_SET: 288 return (gettext("\tset <property=value> ... " 289 "<filesystem|volume|snapshot> ...\n")); 290 case HELP_SHARE: 291 return (gettext("\tshare <-a | filesystem>\n")); 292 case HELP_SNAPSHOT: 293 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... " 294 "<filesystem|volume>@<snap> ...\n")); 295 case HELP_UNMOUNT: 296 return (gettext("\tunmount|umount [-f] " 297 "<-a | filesystem|mountpoint>\n")); 298 case HELP_UNSHARE: 299 return (gettext("\tunshare " 300 "<-a | filesystem|mountpoint>\n")); 301 case HELP_ALLOW: 302 return (gettext("\tallow <filesystem|volume>\n" 303 "\tallow [-ldug] " 304 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 305 "\t <filesystem|volume>\n" 306 "\tallow [-ld] -e <perm|@setname>[,...] " 307 "<filesystem|volume>\n" 308 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 309 "\tallow -s @setname <perm|@setname>[,...] " 310 "<filesystem|volume>\n")); 311 case HELP_UNALLOW: 312 return (gettext("\tunallow [-rldug] " 313 "<\"everyone\"|user|group>[,...]\n" 314 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 315 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 316 "<filesystem|volume>\n" 317 "\tunallow [-r] -c [<perm|@setname>[,...]] " 318 "<filesystem|volume>\n" 319 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 320 "<filesystem|volume>\n")); 321 case HELP_USERSPACE: 322 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 323 "[-s field] ...\n" 324 "\t [-S field] ... [-t type[,...]] " 325 "<filesystem|snapshot>\n")); 326 case HELP_GROUPSPACE: 327 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 328 "[-s field] ...\n" 329 "\t [-S field] ... [-t type[,...]] " 330 "<filesystem|snapshot>\n")); 331 case HELP_HOLD: 332 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 333 case HELP_HOLDS: 334 return (gettext("\tholds [-r] <snapshot> ...\n")); 335 case HELP_RELEASE: 336 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 337 case HELP_DIFF: 338 return (gettext("\tdiff [-FHt] <snapshot> " 339 "[snapshot|filesystem]\n")); 340 case HELP_BOOKMARK: 341 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 342 } 343 344 abort(); 345 /* NOTREACHED */ 346} 347 348void 349nomem(void) 350{ 351 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 352 exit(1); 353} 354 355/* 356 * Utility function to guarantee malloc() success. 357 */ 358 359void * 360safe_malloc(size_t size) 361{ 362 void *data; 363 364 if ((data = calloc(1, size)) == NULL) 365 nomem(); 366 367 return (data); 368} 369 370static char * 371safe_strdup(char *str) 372{ 373 char *dupstr = strdup(str); 374 375 if (dupstr == NULL) 376 nomem(); 377 378 return (dupstr); 379} 380 381/* 382 * Callback routine that will print out information for each of 383 * the properties. 384 */ 385static int 386usage_prop_cb(int prop, void *cb) 387{ 388 FILE *fp = cb; 389 390 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 391 392 if (zfs_prop_readonly(prop)) 393 (void) fprintf(fp, " NO "); 394 else 395 (void) fprintf(fp, "YES "); 396 397 if (zfs_prop_inheritable(prop)) 398 (void) fprintf(fp, " YES "); 399 else 400 (void) fprintf(fp, " NO "); 401 402 if (zfs_prop_values(prop) == NULL) 403 (void) fprintf(fp, "-\n"); 404 else 405 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 406 407 return (ZPROP_CONT); 408} 409 410/* 411 * Display usage message. If we're inside a command, display only the usage for 412 * that command. Otherwise, iterate over the entire command table and display 413 * a complete usage message. 414 */ 415static void 416usage(boolean_t requested) 417{ 418 int i; 419 boolean_t show_properties = B_FALSE; 420 FILE *fp = requested ? stdout : stderr; 421 422 if (current_command == NULL) { 423 424 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 425 (void) fprintf(fp, 426 gettext("where 'command' is one of the following:\n\n")); 427 428 for (i = 0; i < NCOMMAND; i++) { 429 if (command_table[i].name == NULL) 430 (void) fprintf(fp, "\n"); 431 else 432 (void) fprintf(fp, "%s", 433 get_usage(command_table[i].usage)); 434 } 435 436 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 437 "pool/[dataset/]*dataset[@name]\n")); 438 } else { 439 (void) fprintf(fp, gettext("usage:\n")); 440 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 441 } 442 443 if (current_command != NULL && 444 (strcmp(current_command->name, "set") == 0 || 445 strcmp(current_command->name, "get") == 0 || 446 strcmp(current_command->name, "inherit") == 0 || 447 strcmp(current_command->name, "list") == 0)) 448 show_properties = B_TRUE; 449 450 if (show_properties) { 451 (void) fprintf(fp, 452 gettext("\nThe following properties are supported:\n")); 453 454 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 455 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 456 457 /* Iterate over all properties */ 458 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 459 ZFS_TYPE_DATASET); 460 461 (void) fprintf(fp, "\t%-15s ", "userused@..."); 462 (void) fprintf(fp, " NO NO <size>\n"); 463 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 464 (void) fprintf(fp, " NO NO <size>\n"); 465 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 466 (void) fprintf(fp, "YES NO <size> | none\n"); 467 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 468 (void) fprintf(fp, "YES NO <size> | none\n"); 469 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 470 (void) fprintf(fp, " NO NO <size>\n"); 471 472 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 473 "with standard units such as K, M, G, etc.\n")); 474 (void) fprintf(fp, gettext("\nUser-defined properties can " 475 "be specified by using a name containing a colon (:).\n")); 476 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 477 "properties must be appended with\n" 478 "a user or group specifier of one of these forms:\n" 479 " POSIX name (eg: \"matt\")\n" 480 " POSIX id (eg: \"126829\")\n" 481 " SMB name@domain (eg: \"matt@sun\")\n" 482 " SMB SID (eg: \"S-1-234-567-89\")\n")); 483 } else { 484 (void) fprintf(fp, 485 gettext("\nFor the property list, run: %s\n"), 486 "zfs set|get"); 487 (void) fprintf(fp, 488 gettext("\nFor the delegated permission list, run: %s\n"), 489 "zfs allow|unallow"); 490 } 491 492 /* 493 * See comments at end of main(). 494 */ 495 if (getenv("ZFS_ABORT") != NULL) { 496 (void) printf("dumping core by request\n"); 497 abort(); 498 } 499 500 exit(requested ? 0 : 2); 501} 502 503/* 504 * Take a property=value argument string and add it to the given nvlist. 505 * Modifies the argument inplace. 506 */ 507static int 508parseprop(nvlist_t *props, char *propname) 509{ 510 char *propval, *strval; 511 512 if ((propval = strchr(propname, '=')) == NULL) { 513 (void) fprintf(stderr, gettext("missing " 514 "'=' for property=value argument\n")); 515 return (-1); 516 } 517 *propval = '\0'; 518 propval++; 519 if (nvlist_lookup_string(props, propname, &strval) == 0) { 520 (void) fprintf(stderr, gettext("property '%s' " 521 "specified multiple times\n"), propname); 522 return (-1); 523 } 524 if (nvlist_add_string(props, propname, propval) != 0) 525 nomem(); 526 return (0); 527} 528 529static int 530parse_depth(char *opt, int *flags) 531{ 532 char *tmp; 533 int depth; 534 535 depth = (int)strtol(opt, &tmp, 0); 536 if (*tmp) { 537 (void) fprintf(stderr, 538 gettext("%s is not an integer\n"), opt); 539 usage(B_FALSE); 540 } 541 if (depth < 0) { 542 (void) fprintf(stderr, 543 gettext("Depth can not be negative.\n")); 544 usage(B_FALSE); 545 } 546 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 547 return (depth); 548} 549 550#define PROGRESS_DELAY 2 /* seconds */ 551 552static 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"; 553static time_t pt_begin; 554static char *pt_header = NULL; 555static boolean_t pt_shown; 556 557static void 558start_progress_timer(void) 559{ 560 pt_begin = time(NULL) + PROGRESS_DELAY; 561 pt_shown = B_FALSE; 562} 563 564static void 565set_progress_header(char *header) 566{ 567 assert(pt_header == NULL); 568 pt_header = safe_strdup(header); 569 if (pt_shown) { 570 (void) printf("%s: ", header); 571 (void) fflush(stdout); 572 } 573} 574 575static void 576update_progress(char *update) 577{ 578 if (!pt_shown && time(NULL) > pt_begin) { 579 int len = strlen(update); 580 581 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 582 pt_reverse); 583 (void) fflush(stdout); 584 pt_shown = B_TRUE; 585 } else if (pt_shown) { 586 int len = strlen(update); 587 588 (void) printf("%s%*.*s", update, len, len, pt_reverse); 589 (void) fflush(stdout); 590 } 591} 592 593static void 594finish_progress(char *done) 595{ 596 if (pt_shown) { 597 (void) printf("%s\n", done); 598 (void) fflush(stdout); 599 } 600 free(pt_header); 601 pt_header = NULL; 602} 603 604/* 605 * Check if the dataset is mountable and should be automatically mounted. 606 */ 607static boolean_t 608should_auto_mount(zfs_handle_t *zhp) 609{ 610 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 611 return (B_FALSE); 612 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 613} 614 615/* 616 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 617 * 618 * Given an existing dataset, create a writable copy whose initial contents 619 * are the same as the source. The newly created dataset maintains a 620 * dependency on the original; the original cannot be destroyed so long as 621 * the clone exists. 622 * 623 * The '-p' flag creates all the non-existing ancestors of the target first. 624 */ 625static int 626zfs_do_clone(int argc, char **argv) 627{ 628 zfs_handle_t *zhp = NULL; 629 boolean_t parents = B_FALSE; 630 nvlist_t *props; 631 int ret = 0; 632 int c; 633 634 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 635 nomem(); 636 637 /* check options */ 638 while ((c = getopt(argc, argv, "o:p")) != -1) { 639 switch (c) { 640 case 'o': 641 if (parseprop(props, optarg) != 0) 642 return (1); 643 break; 644 case 'p': 645 parents = B_TRUE; 646 break; 647 case '?': 648 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 649 optopt); 650 goto usage; 651 } 652 } 653 654 argc -= optind; 655 argv += optind; 656 657 /* check number of arguments */ 658 if (argc < 1) { 659 (void) fprintf(stderr, gettext("missing source dataset " 660 "argument\n")); 661 goto usage; 662 } 663 if (argc < 2) { 664 (void) fprintf(stderr, gettext("missing target dataset " 665 "argument\n")); 666 goto usage; 667 } 668 if (argc > 2) { 669 (void) fprintf(stderr, gettext("too many arguments\n")); 670 goto usage; 671 } 672 673 /* open the source dataset */ 674 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 675 return (1); 676 677 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 678 ZFS_TYPE_VOLUME)) { 679 /* 680 * Now create the ancestors of the target dataset. If the 681 * target already exists and '-p' option was used we should not 682 * complain. 683 */ 684 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 685 ZFS_TYPE_VOLUME)) 686 return (0); 687 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 688 return (1); 689 } 690 691 /* pass to libzfs */ 692 ret = zfs_clone(zhp, argv[1], props); 693 694 /* create the mountpoint if necessary */ 695 if (ret == 0) { 696 zfs_handle_t *clone; 697 698 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 699 if (clone != NULL) { 700 /* 701 * If the user doesn't want the dataset 702 * automatically mounted, then skip the mount/share 703 * step. 704 */ 705 if (should_auto_mount(clone)) { 706 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 707 (void) fprintf(stderr, gettext("clone " 708 "successfully created, " 709 "but not mounted\n")); 710 } else if ((ret = zfs_share(clone)) != 0) { 711 (void) fprintf(stderr, gettext("clone " 712 "successfully created, " 713 "but not shared\n")); 714 } 715 } 716 zfs_close(clone); 717 } 718 } 719 720 zfs_close(zhp); 721 nvlist_free(props); 722 723 return (!!ret); 724 725usage: 726 if (zhp) 727 zfs_close(zhp); 728 nvlist_free(props); 729 usage(B_FALSE); 730 return (-1); 731} 732 733/* 734 * zfs create [-pu] [-o prop=value] ... fs 735 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 736 * 737 * Create a new dataset. This command can be used to create filesystems 738 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 739 * For volumes, the user must specify a size to be used. 740 * 741 * The '-s' flag applies only to volumes, and indicates that we should not try 742 * to set the reservation for this volume. By default we set a reservation 743 * equal to the size for any volume. For pools with SPA_VERSION >= 744 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 745 * 746 * The '-p' flag creates all the non-existing ancestors of the target first. 747 * 748 * The '-u' flag prevents mounting of newly created file system. 749 */ 750static int 751zfs_do_create(int argc, char **argv) 752{ 753 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 754 zfs_handle_t *zhp = NULL; 755 uint64_t volsize = 0; 756 int c; 757 boolean_t noreserve = B_FALSE; 758 boolean_t bflag = B_FALSE; 759 boolean_t parents = B_FALSE; 760 boolean_t nomount = B_FALSE; 761 int ret = 1; 762 nvlist_t *props; 763 uint64_t intval; 764 765 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 766 nomem(); 767 768 /* check options */ 769 while ((c = getopt(argc, argv, ":V:b:so:pu")) != -1) { 770 switch (c) { 771 case 'V': 772 type = ZFS_TYPE_VOLUME; 773 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 774 (void) fprintf(stderr, gettext("bad volume " 775 "size '%s': %s\n"), optarg, 776 libzfs_error_description(g_zfs)); 777 goto error; 778 } 779 780 if (nvlist_add_uint64(props, 781 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 782 nomem(); 783 volsize = intval; 784 break; 785 case 'p': 786 parents = B_TRUE; 787 break; 788 case 'b': 789 bflag = B_TRUE; 790 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 791 (void) fprintf(stderr, gettext("bad volume " 792 "block size '%s': %s\n"), optarg, 793 libzfs_error_description(g_zfs)); 794 goto error; 795 } 796 797 if (nvlist_add_uint64(props, 798 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 799 intval) != 0) 800 nomem(); 801 break; 802 case 'o': 803 if (parseprop(props, optarg) != 0) 804 goto error; 805 break; 806 case 's': 807 noreserve = B_TRUE; 808 break; 809 case 'u': 810 nomount = B_TRUE; 811 break; 812 case ':': 813 (void) fprintf(stderr, gettext("missing size " 814 "argument\n")); 815 goto badusage; 816 case '?': 817 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 818 optopt); 819 goto badusage; 820 } 821 } 822 823 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 824 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 825 "used when creating a volume\n")); 826 goto badusage; 827 } 828 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 829 (void) fprintf(stderr, gettext("'-u' can only be " 830 "used when creating a file system\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 (!nomount && 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 935error: 936 if (zhp) 937 zfs_close(zhp); 938 nvlist_free(props); 939 return (ret); 940badusage: 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 */ 959typedef 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 */ 985static int 986destroy_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 1037out: 1038 zfs_close(zhp); 1039 return (0); 1040} 1041 1042static int 1043destroy_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 1100static int 1101destroy_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 1142static int 1143destroy_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 1164static int 1165snapshot_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 1186static int 1187gather_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 1207out: 1208 zfs_close(zhp); 1209 return (err); 1210} 1211 1212static int 1213destroy_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 1241static int 1242zfs_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 1464out: 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 1472static boolean_t 1473is_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 */ 1507static int 1508get_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_MAXNAMELEN]; 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 1620static int 1621zfs_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; 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"), suboptarg); 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"), suboptarg); 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 suboptarg); 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 1863typedef struct inherit_cbdata { 1864 const char *cb_propname; 1865 boolean_t cb_received; 1866} inherit_cbdata_t; 1867 1868static int 1869inherit_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 1885static int 1886inherit_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 1893static int 1894zfs_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 1986typedef 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_MAXNAMELEN]; 1994} upgrade_cbdata_t; 1995 1996static int 1997same_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 2008static int 2009upgrade_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 2044static int 2045upgrade_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 */ 2107static int 2108zfs_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 int 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 filesytems */ 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 */ 2237enum us_field_types { 2238 USFIELD_TYPE, 2239 USFIELD_NAME, 2240 USFIELD_USED, 2241 USFIELD_QUOTA 2242}; 2243static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2244static 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 2254static int us_type_bits[] = { 2255 USTYPE_PSX_GRP, 2256 USTYPE_PSX_USR, 2257 USTYPE_SMB_GRP, 2258 USTYPE_SMB_USR, 2259 USTYPE_ALL 2260}; 2261static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2262 "smbuser", "all" }; 2263 2264typedef 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 2270typedef 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 2282static boolean_t us_populated = B_FALSE; 2283 2284typedef struct { 2285 zfs_sort_column_t *si_sortcol; 2286 boolean_t si_numname; 2287} us_sort_info_t; 2288 2289static int 2290us_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 2302static int 2303us_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 2390static inline const char * 2391us_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 2407static int 2408userspace_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[ZFS_MAXNAMELEN + 32]; 2440 uid_t id; 2441#ifdef illumos 2442 int err; 2443 int flag = IDMAP_REQ_FLG_USE_CACHE; 2444#endif 2445 2446 smbentity = B_TRUE; 2447 2448 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2449 2450 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2451 type = USTYPE_SMB_GRP; 2452#ifdef illumos 2453 err = sid_to_id(sid, B_FALSE, &id); 2454#endif 2455 } else { 2456 type = USTYPE_SMB_USR; 2457#ifdef illumos 2458 err = sid_to_id(sid, B_TRUE, &id); 2459#endif 2460 } 2461 2462#ifdef illumos 2463 if (err == 0) { 2464 rid = id; 2465 if (!cb->cb_sid2posix) { 2466 if (type == USTYPE_SMB_USR) { 2467 (void) idmap_getwinnamebyuid(rid, flag, 2468 &name, NULL); 2469 } else { 2470 (void) idmap_getwinnamebygid(rid, flag, 2471 &name, NULL); 2472 } 2473 if (name == NULL) 2474 name = sid; 2475 } 2476 } 2477#endif 2478 } 2479 2480 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2481 /* POSIX or -i */ 2482 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2483 type = USTYPE_PSX_GRP; 2484 if (!cb->cb_numname) { 2485 struct group *g; 2486 2487 if ((g = getgrgid(rid)) != NULL) 2488 name = g->gr_name; 2489 } 2490 } else { 2491 type = USTYPE_PSX_USR; 2492 if (!cb->cb_numname) { 2493 struct passwd *p; 2494 2495 if ((p = getpwuid(rid)) != NULL) 2496 name = p->pw_name; 2497 } 2498 } 2499 } 2500 2501 /* 2502 * Make sure that the type/name combination is unique when doing 2503 * SID to POSIX ID translation (hence changing the type from SMB to 2504 * POSIX). 2505 */ 2506 if (cb->cb_sid2posix && 2507 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2508 nomem(); 2509 2510 /* Calculate/update width of TYPE field */ 2511 typestr = us_type2str(type); 2512 typelen = strlen(gettext(typestr)); 2513 typeidx = us_field_index("type"); 2514 if (typelen > cb->cb_width[typeidx]) 2515 cb->cb_width[typeidx] = typelen; 2516 if (nvlist_add_uint32(props, "type", type) != 0) 2517 nomem(); 2518 2519 /* Calculate/update width of NAME field */ 2520 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2521 if (nvlist_add_uint64(props, "name", rid) != 0) 2522 nomem(); 2523 namelen = snprintf(NULL, 0, "%u", rid); 2524 } else { 2525 if (nvlist_add_string(props, "name", name) != 0) 2526 nomem(); 2527 namelen = strlen(name); 2528 } 2529 nameidx = us_field_index("name"); 2530 if (namelen > cb->cb_width[nameidx]) 2531 cb->cb_width[nameidx] = namelen; 2532 2533 /* 2534 * Check if this type/name combination is in the list and update it; 2535 * otherwise add new node to the list. 2536 */ 2537 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2538 uu_avl_insert(avl, node, idx); 2539 } else { 2540 nvlist_free(props); 2541 free(node); 2542 node = n; 2543 props = node->usn_nvl; 2544 } 2545 2546 /* Calculate/update width of USED/QUOTA fields */ 2547 if (cb->cb_nicenum) 2548 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2549 else 2550 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2551 sizelen = strlen(sizebuf); 2552 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2553 propname = "used"; 2554 if (!nvlist_exists(props, "quota")) 2555 (void) nvlist_add_uint64(props, "quota", 0); 2556 } else { 2557 propname = "quota"; 2558 if (!nvlist_exists(props, "used")) 2559 (void) nvlist_add_uint64(props, "used", 0); 2560 } 2561 sizeidx = us_field_index(propname); 2562 if (sizelen > cb->cb_width[sizeidx]) 2563 cb->cb_width[sizeidx] = sizelen; 2564 2565 if (nvlist_add_uint64(props, propname, space) != 0) 2566 nomem(); 2567 2568 return (0); 2569} 2570 2571static void 2572print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2573 size_t *width, us_node_t *node) 2574{ 2575 nvlist_t *nvl = node->usn_nvl; 2576 char valstr[ZFS_MAXNAMELEN]; 2577 boolean_t first = B_TRUE; 2578 int cfield = 0; 2579 int field; 2580 uint32_t ustype; 2581 2582 /* Check type */ 2583 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2584 if (!(ustype & types)) 2585 return; 2586 2587 while ((field = fields[cfield]) != USFIELD_LAST) { 2588 nvpair_t *nvp = NULL; 2589 data_type_t type; 2590 uint32_t val32; 2591 uint64_t val64; 2592 char *strval = NULL; 2593 2594 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2595 if (strcmp(nvpair_name(nvp), 2596 us_field_names[field]) == 0) 2597 break; 2598 } 2599 2600 type = nvpair_type(nvp); 2601 switch (type) { 2602 case DATA_TYPE_UINT32: 2603 (void) nvpair_value_uint32(nvp, &val32); 2604 break; 2605 case DATA_TYPE_UINT64: 2606 (void) nvpair_value_uint64(nvp, &val64); 2607 break; 2608 case DATA_TYPE_STRING: 2609 (void) nvpair_value_string(nvp, &strval); 2610 break; 2611 default: 2612 (void) fprintf(stderr, "invalid data type\n"); 2613 } 2614 2615 switch (field) { 2616 case USFIELD_TYPE: 2617 strval = (char *)us_type2str(val32); 2618 break; 2619 case USFIELD_NAME: 2620 if (type == DATA_TYPE_UINT64) { 2621 (void) sprintf(valstr, "%llu", val64); 2622 strval = valstr; 2623 } 2624 break; 2625 case USFIELD_USED: 2626 case USFIELD_QUOTA: 2627 if (type == DATA_TYPE_UINT64) { 2628 if (parsable) { 2629 (void) sprintf(valstr, "%llu", val64); 2630 } else { 2631 zfs_nicenum(val64, valstr, 2632 sizeof (valstr)); 2633 } 2634 if (field == USFIELD_QUOTA && 2635 strcmp(valstr, "0") == 0) 2636 strval = "none"; 2637 else 2638 strval = valstr; 2639 } 2640 break; 2641 } 2642 2643 if (!first) { 2644 if (scripted) 2645 (void) printf("\t"); 2646 else 2647 (void) printf(" "); 2648 } 2649 if (scripted) 2650 (void) printf("%s", strval); 2651 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2652 (void) printf("%-*s", width[field], strval); 2653 else 2654 (void) printf("%*s", width[field], strval); 2655 2656 first = B_FALSE; 2657 cfield++; 2658 } 2659 2660 (void) printf("\n"); 2661} 2662 2663static void 2664print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2665 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2666{ 2667 us_node_t *node; 2668 const char *col; 2669 int cfield = 0; 2670 int field; 2671 2672 if (!scripted) { 2673 boolean_t first = B_TRUE; 2674 2675 while ((field = fields[cfield]) != USFIELD_LAST) { 2676 col = gettext(us_field_hdr[field]); 2677 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2678 (void) printf(first ? "%-*s" : " %-*s", 2679 width[field], col); 2680 } else { 2681 (void) printf(first ? "%*s" : " %*s", 2682 width[field], col); 2683 } 2684 first = B_FALSE; 2685 cfield++; 2686 } 2687 (void) printf("\n"); 2688 } 2689 2690 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2691 print_us_node(scripted, parsable, fields, types, width, node); 2692 if (rmnode) 2693 nvlist_free(node->usn_nvl); 2694 } 2695} 2696 2697static int 2698zfs_do_userspace(int argc, char **argv) 2699{ 2700 zfs_handle_t *zhp; 2701 zfs_userquota_prop_t p; 2702 2703 uu_avl_pool_t *avl_pool; 2704 uu_avl_t *avl_tree; 2705 uu_avl_walk_t *walk; 2706 char *delim; 2707 char deffields[] = "type,name,used,quota"; 2708 char *ofield = NULL; 2709 char *tfield = NULL; 2710 int cfield = 0; 2711 int fields[256]; 2712 int i; 2713 boolean_t scripted = B_FALSE; 2714 boolean_t prtnum = B_FALSE; 2715 boolean_t parsable = B_FALSE; 2716 boolean_t sid2posix = B_FALSE; 2717 int ret = 0; 2718 int c; 2719 zfs_sort_column_t *sortcol = NULL; 2720 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2721 us_cbdata_t cb; 2722 us_node_t *node; 2723 us_node_t *rmnode; 2724 uu_list_pool_t *listpool; 2725 uu_list_t *list; 2726 uu_avl_index_t idx = 0; 2727 uu_list_index_t idx2 = 0; 2728 2729 if (argc < 2) 2730 usage(B_FALSE); 2731 2732 if (strcmp(argv[0], "groupspace") == 0) 2733 /* Toggle default group types */ 2734 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2735 2736 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2737 switch (c) { 2738 case 'n': 2739 prtnum = B_TRUE; 2740 break; 2741 case 'H': 2742 scripted = B_TRUE; 2743 break; 2744 case 'p': 2745 parsable = B_TRUE; 2746 break; 2747 case 'o': 2748 ofield = optarg; 2749 break; 2750 case 's': 2751 case 'S': 2752 if (zfs_add_sort_column(&sortcol, optarg, 2753 c == 's' ? B_FALSE : B_TRUE) != 0) { 2754 (void) fprintf(stderr, 2755 gettext("invalid field '%s'\n"), optarg); 2756 usage(B_FALSE); 2757 } 2758 break; 2759 case 't': 2760 tfield = optarg; 2761 break; 2762 case 'i': 2763 sid2posix = B_TRUE; 2764 break; 2765 case ':': 2766 (void) fprintf(stderr, gettext("missing argument for " 2767 "'%c' option\n"), optopt); 2768 usage(B_FALSE); 2769 break; 2770 case '?': 2771 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2772 optopt); 2773 usage(B_FALSE); 2774 } 2775 } 2776 2777 argc -= optind; 2778 argv += optind; 2779 2780 if (argc < 1) { 2781 (void) fprintf(stderr, gettext("missing dataset name\n")); 2782 usage(B_FALSE); 2783 } 2784 if (argc > 1) { 2785 (void) fprintf(stderr, gettext("too many arguments\n")); 2786 usage(B_FALSE); 2787 } 2788 2789 /* Use default output fields if not specified using -o */ 2790 if (ofield == NULL) 2791 ofield = deffields; 2792 do { 2793 if ((delim = strchr(ofield, ',')) != NULL) 2794 *delim = '\0'; 2795 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2796 (void) fprintf(stderr, gettext("invalid type '%s' " 2797 "for -o option\n"), ofield); 2798 return (-1); 2799 } 2800 if (delim != NULL) 2801 ofield = delim + 1; 2802 } while (delim != NULL); 2803 fields[cfield] = USFIELD_LAST; 2804 2805 /* Override output types (-t option) */ 2806 if (tfield != NULL) { 2807 types = 0; 2808 2809 do { 2810 boolean_t found = B_FALSE; 2811 2812 if ((delim = strchr(tfield, ',')) != NULL) 2813 *delim = '\0'; 2814 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2815 i++) { 2816 if (strcmp(tfield, us_type_names[i]) == 0) { 2817 found = B_TRUE; 2818 types |= us_type_bits[i]; 2819 break; 2820 } 2821 } 2822 if (!found) { 2823 (void) fprintf(stderr, gettext("invalid type " 2824 "'%s' for -t option\n"), tfield); 2825 return (-1); 2826 } 2827 if (delim != NULL) 2828 tfield = delim + 1; 2829 } while (delim != NULL); 2830 } 2831 2832 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2833 return (1); 2834 2835 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2836 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2837 nomem(); 2838 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2839 nomem(); 2840 2841 /* Always add default sorting columns */ 2842 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2843 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2844 2845 cb.cb_sortcol = sortcol; 2846 cb.cb_numname = prtnum; 2847 cb.cb_nicenum = !parsable; 2848 cb.cb_avl_pool = avl_pool; 2849 cb.cb_avl = avl_tree; 2850 cb.cb_sid2posix = sid2posix; 2851 2852 for (i = 0; i < USFIELD_LAST; i++) 2853 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2854 2855 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2856 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2857 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2858 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2859 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2860 continue; 2861 cb.cb_prop = p; 2862 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2863 return (ret); 2864 } 2865 2866 /* Sort the list */ 2867 if ((node = uu_avl_first(avl_tree)) == NULL) 2868 return (0); 2869 2870 us_populated = B_TRUE; 2871 2872 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2873 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2874 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2875 uu_list_node_init(node, &node->usn_listnode, listpool); 2876 2877 while (node != NULL) { 2878 rmnode = node; 2879 node = uu_avl_next(avl_tree, node); 2880 uu_avl_remove(avl_tree, rmnode); 2881 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2882 uu_list_insert(list, rmnode, idx2); 2883 } 2884 2885 for (node = uu_list_first(list); node != NULL; 2886 node = uu_list_next(list, node)) { 2887 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2888 2889 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2890 uu_avl_insert(avl_tree, node, idx); 2891 } 2892 2893 uu_list_destroy(list); 2894 uu_list_pool_destroy(listpool); 2895 2896 /* Print and free node nvlist memory */ 2897 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2898 cb.cb_avl); 2899 2900 zfs_free_sort_columns(sortcol); 2901 2902 /* Clean up the AVL tree */ 2903 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2904 nomem(); 2905 2906 while ((node = uu_avl_walk_next(walk)) != NULL) { 2907 uu_avl_remove(cb.cb_avl, node); 2908 free(node); 2909 } 2910 2911 uu_avl_walk_end(walk); 2912 uu_avl_destroy(avl_tree); 2913 uu_avl_pool_destroy(avl_pool); 2914 2915 return (ret); 2916} 2917 2918/* 2919 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2920 * [-t type[,...]] [filesystem|volume|snapshot] ... 2921 * 2922 * -H Scripted mode; elide headers and separate columns by tabs. 2923 * -p Display values in parsable (literal) format. 2924 * -r Recurse over all children. 2925 * -d Limit recursion by depth. 2926 * -o Control which fields to display. 2927 * -s Specify sort columns, descending order. 2928 * -S Specify sort columns, ascending order. 2929 * -t Control which object types to display. 2930 * 2931 * When given no arguments, list all filesystems in the system. 2932 * Otherwise, list the specified datasets, optionally recursing down them if 2933 * '-r' is specified. 2934 */ 2935typedef struct list_cbdata { 2936 boolean_t cb_first; 2937 boolean_t cb_literal; 2938 boolean_t cb_scripted; 2939 zprop_list_t *cb_proplist; 2940} list_cbdata_t; 2941 2942/* 2943 * Given a list of columns to display, output appropriate headers for each one. 2944 */ 2945static void 2946print_header(list_cbdata_t *cb) 2947{ 2948 zprop_list_t *pl = cb->cb_proplist; 2949 char headerbuf[ZFS_MAXPROPLEN]; 2950 const char *header; 2951 int i; 2952 boolean_t first = B_TRUE; 2953 boolean_t right_justify; 2954 2955 for (; pl != NULL; pl = pl->pl_next) { 2956 if (!first) { 2957 (void) printf(" "); 2958 } else { 2959 first = B_FALSE; 2960 } 2961 2962 right_justify = B_FALSE; 2963 if (pl->pl_prop != ZPROP_INVAL) { 2964 header = zfs_prop_column_name(pl->pl_prop); 2965 right_justify = zfs_prop_align_right(pl->pl_prop); 2966 } else { 2967 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2968 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2969 headerbuf[i] = '\0'; 2970 header = headerbuf; 2971 } 2972 2973 if (pl->pl_next == NULL && !right_justify) 2974 (void) printf("%s", header); 2975 else if (right_justify) 2976 (void) printf("%*s", pl->pl_width, header); 2977 else 2978 (void) printf("%-*s", pl->pl_width, header); 2979 } 2980 2981 (void) printf("\n"); 2982} 2983 2984/* 2985 * Given a dataset and a list of fields, print out all the properties according 2986 * to the described layout. 2987 */ 2988static void 2989print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2990{ 2991 zprop_list_t *pl = cb->cb_proplist; 2992 boolean_t first = B_TRUE; 2993 char property[ZFS_MAXPROPLEN]; 2994 nvlist_t *userprops = zfs_get_user_props(zhp); 2995 nvlist_t *propval; 2996 char *propstr; 2997 boolean_t right_justify; 2998 2999 for (; pl != NULL; pl = pl->pl_next) { 3000 if (!first) { 3001 if (cb->cb_scripted) 3002 (void) printf("\t"); 3003 else 3004 (void) printf(" "); 3005 } else { 3006 first = B_FALSE; 3007 } 3008 3009 if (pl->pl_prop == ZFS_PROP_NAME) { 3010 (void) strlcpy(property, zfs_get_name(zhp), 3011 sizeof(property)); 3012 propstr = property; 3013 right_justify = zfs_prop_align_right(pl->pl_prop); 3014 } else if (pl->pl_prop != ZPROP_INVAL) { 3015 if (zfs_prop_get(zhp, pl->pl_prop, property, 3016 sizeof (property), NULL, NULL, 0, 3017 cb->cb_literal) != 0) 3018 propstr = "-"; 3019 else 3020 propstr = property; 3021 right_justify = zfs_prop_align_right(pl->pl_prop); 3022 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3023 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3024 property, sizeof (property), cb->cb_literal) != 0) 3025 propstr = "-"; 3026 else 3027 propstr = property; 3028 right_justify = B_TRUE; 3029 } else if (zfs_prop_written(pl->pl_user_prop)) { 3030 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3031 property, sizeof (property), cb->cb_literal) != 0) 3032 propstr = "-"; 3033 else 3034 propstr = property; 3035 right_justify = B_TRUE; 3036 } else { 3037 if (nvlist_lookup_nvlist(userprops, 3038 pl->pl_user_prop, &propval) != 0) 3039 propstr = "-"; 3040 else 3041 verify(nvlist_lookup_string(propval, 3042 ZPROP_VALUE, &propstr) == 0); 3043 right_justify = B_FALSE; 3044 } 3045 3046 /* 3047 * If this is being called in scripted mode, or if this is the 3048 * last column and it is left-justified, don't include a width 3049 * format specifier. 3050 */ 3051 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3052 (void) printf("%s", propstr); 3053 else if (right_justify) 3054 (void) printf("%*s", pl->pl_width, propstr); 3055 else 3056 (void) printf("%-*s", pl->pl_width, propstr); 3057 } 3058 3059 (void) printf("\n"); 3060} 3061 3062/* 3063 * Generic callback function to list a dataset or snapshot. 3064 */ 3065static int 3066list_callback(zfs_handle_t *zhp, void *data) 3067{ 3068 list_cbdata_t *cbp = data; 3069 3070 if (cbp->cb_first) { 3071 if (!cbp->cb_scripted) 3072 print_header(cbp); 3073 cbp->cb_first = B_FALSE; 3074 } 3075 3076 print_dataset(zhp, cbp); 3077 3078 return (0); 3079} 3080 3081static int 3082zfs_do_list(int argc, char **argv) 3083{ 3084 int c; 3085 static char default_fields[] = 3086 "name,used,available,referenced,mountpoint"; 3087 int types = ZFS_TYPE_DATASET; 3088 boolean_t types_specified = B_FALSE; 3089 char *fields = NULL; 3090 list_cbdata_t cb = { 0 }; 3091 char *value; 3092 int limit = 0; 3093 int ret = 0; 3094 zfs_sort_column_t *sortcol = NULL; 3095 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3096 3097 /* check options */ 3098 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3099 switch (c) { 3100 case 'o': 3101 fields = optarg; 3102 break; 3103 case 'p': 3104 cb.cb_literal = B_TRUE; 3105 flags |= ZFS_ITER_LITERAL_PROPS; 3106 break; 3107 case 'd': 3108 limit = parse_depth(optarg, &flags); 3109 break; 3110 case 'r': 3111 flags |= ZFS_ITER_RECURSE; 3112 break; 3113 case 'H': 3114 cb.cb_scripted = B_TRUE; 3115 break; 3116 case 's': 3117 if (zfs_add_sort_column(&sortcol, optarg, 3118 B_FALSE) != 0) { 3119 (void) fprintf(stderr, 3120 gettext("invalid property '%s'\n"), optarg); 3121 usage(B_FALSE); 3122 } 3123 break; 3124 case 'S': 3125 if (zfs_add_sort_column(&sortcol, optarg, 3126 B_TRUE) != 0) { 3127 (void) fprintf(stderr, 3128 gettext("invalid property '%s'\n"), optarg); 3129 usage(B_FALSE); 3130 } 3131 break; 3132 case 't': 3133 types = 0; 3134 types_specified = B_TRUE; 3135 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3136 while (*optarg != '\0') { 3137 static char *type_subopts[] = { "filesystem", 3138 "volume", "snapshot", "snap", "bookmark", 3139 "all", NULL }; 3140 3141 switch (getsubopt(&optarg, type_subopts, 3142 &value)) { 3143 case 0: 3144 types |= ZFS_TYPE_FILESYSTEM; 3145 break; 3146 case 1: 3147 types |= ZFS_TYPE_VOLUME; 3148 break; 3149 case 2: 3150 case 3: 3151 types |= ZFS_TYPE_SNAPSHOT; 3152 break; 3153 case 4: 3154 types |= ZFS_TYPE_BOOKMARK; 3155 break; 3156 case 5: 3157 types = ZFS_TYPE_DATASET | 3158 ZFS_TYPE_BOOKMARK; 3159 break; 3160 default: 3161 (void) fprintf(stderr, 3162 gettext("invalid type '%s'\n"), 3163 suboptarg); 3164 usage(B_FALSE); 3165 } 3166 } 3167 break; 3168 case ':': 3169 (void) fprintf(stderr, gettext("missing argument for " 3170 "'%c' option\n"), optopt); 3171 usage(B_FALSE); 3172 break; 3173 case '?': 3174 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3175 optopt); 3176 usage(B_FALSE); 3177 } 3178 } 3179 3180 argc -= optind; 3181 argv += optind; 3182 3183 if (fields == NULL) 3184 fields = default_fields; 3185 3186 /* 3187 * If we are only going to list snapshot names and sort by name, 3188 * then we can use faster version. 3189 */ 3190 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3191 flags |= ZFS_ITER_SIMPLE; 3192 3193 /* 3194 * If "-o space" and no types were specified, don't display snapshots. 3195 */ 3196 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3197 types &= ~ZFS_TYPE_SNAPSHOT; 3198 3199 /* 3200 * If the user specifies '-o all', the zprop_get_list() doesn't 3201 * normally include the name of the dataset. For 'zfs list', we always 3202 * want this property to be first. 3203 */ 3204 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3205 != 0) 3206 usage(B_FALSE); 3207 3208 cb.cb_first = B_TRUE; 3209 3210 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3211 limit, list_callback, &cb); 3212 3213 zprop_free_list(cb.cb_proplist); 3214 zfs_free_sort_columns(sortcol); 3215 3216 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3217 (void) printf(gettext("no datasets available\n")); 3218 3219 return (ret); 3220} 3221 3222/* 3223 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3224 * zfs rename [-f] -p <fs | vol> <fs | vol> 3225 * zfs rename -r <snap> <snap> 3226 * zfs rename -u [-p] <fs> <fs> 3227 * 3228 * Renames the given dataset to another of the same type. 3229 * 3230 * The '-p' flag creates all the non-existing ancestors of the target first. 3231 */ 3232/* ARGSUSED */ 3233static int 3234zfs_do_rename(int argc, char **argv) 3235{ 3236 zfs_handle_t *zhp; 3237 renameflags_t flags = { 0 }; 3238 int c; 3239 int ret = 0; 3240 int types; 3241 boolean_t parents = B_FALSE; 3242 char *snapshot = NULL; 3243 3244 /* check options */ 3245 while ((c = getopt(argc, argv, "fpru")) != -1) { 3246 switch (c) { 3247 case 'p': 3248 parents = B_TRUE; 3249 break; 3250 case 'r': 3251 flags.recurse = B_TRUE; 3252 break; 3253 case 'u': 3254 flags.nounmount = B_TRUE; 3255 break; 3256 case 'f': 3257 flags.forceunmount = B_TRUE; 3258 break; 3259 case '?': 3260 default: 3261 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3262 optopt); 3263 usage(B_FALSE); 3264 } 3265 } 3266 3267 argc -= optind; 3268 argv += optind; 3269 3270 /* check number of arguments */ 3271 if (argc < 1) { 3272 (void) fprintf(stderr, gettext("missing source dataset " 3273 "argument\n")); 3274 usage(B_FALSE); 3275 } 3276 if (argc < 2) { 3277 (void) fprintf(stderr, gettext("missing target dataset " 3278 "argument\n")); 3279 usage(B_FALSE); 3280 } 3281 if (argc > 2) { 3282 (void) fprintf(stderr, gettext("too many arguments\n")); 3283 usage(B_FALSE); 3284 } 3285 3286 if (flags.recurse && parents) { 3287 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3288 "exclusive\n")); 3289 usage(B_FALSE); 3290 } 3291 3292 if (flags.recurse && strchr(argv[0], '@') == 0) { 3293 (void) fprintf(stderr, gettext("source dataset for recursive " 3294 "rename must be a snapshot\n")); 3295 usage(B_FALSE); 3296 } 3297 3298 if (flags.nounmount && parents) { 3299 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3300 "exclusive\n")); 3301 usage(B_FALSE); 3302 } 3303 3304 if (flags.nounmount) 3305 types = ZFS_TYPE_FILESYSTEM; 3306 else if (parents) 3307 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3308 else 3309 types = ZFS_TYPE_DATASET; 3310 3311 if (flags.recurse) { 3312 /* 3313 * When we do recursive rename we are fine when the given 3314 * snapshot for the given dataset doesn't exist - it can 3315 * still exists below. 3316 */ 3317 3318 snapshot = strchr(argv[0], '@'); 3319 assert(snapshot != NULL); 3320 *snapshot = '\0'; 3321 snapshot++; 3322 } 3323 3324 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3325 return (1); 3326 3327 /* If we were asked and the name looks good, try to create ancestors. */ 3328 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3329 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3330 zfs_close(zhp); 3331 return (1); 3332 } 3333 3334 ret = (zfs_rename(zhp, snapshot, argv[1], flags) != 0); 3335 3336 zfs_close(zhp); 3337 return (ret); 3338} 3339 3340/* 3341 * zfs promote <fs> 3342 * 3343 * Promotes the given clone fs to be the parent 3344 */ 3345/* ARGSUSED */ 3346static int 3347zfs_do_promote(int argc, char **argv) 3348{ 3349 zfs_handle_t *zhp; 3350 int ret = 0; 3351 3352 /* check options */ 3353 if (argc > 1 && argv[1][0] == '-') { 3354 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3355 argv[1][1]); 3356 usage(B_FALSE); 3357 } 3358 3359 /* check number of arguments */ 3360 if (argc < 2) { 3361 (void) fprintf(stderr, gettext("missing clone filesystem" 3362 " argument\n")); 3363 usage(B_FALSE); 3364 } 3365 if (argc > 2) { 3366 (void) fprintf(stderr, gettext("too many arguments\n")); 3367 usage(B_FALSE); 3368 } 3369 3370 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3371 if (zhp == NULL) 3372 return (1); 3373 3374 ret = (zfs_promote(zhp) != 0); 3375 3376 3377 zfs_close(zhp); 3378 return (ret); 3379} 3380 3381/* 3382 * zfs rollback [-rRf] <snapshot> 3383 * 3384 * -r Delete any intervening snapshots before doing rollback 3385 * -R Delete any snapshots and their clones 3386 * -f ignored for backwards compatability 3387 * 3388 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3389 * since then and making it the active dataset. If more recent snapshots exist, 3390 * the command will complain unless the '-r' flag is given. 3391 */ 3392typedef struct rollback_cbdata { 3393 uint64_t cb_create; 3394 boolean_t cb_first; 3395 int cb_doclones; 3396 char *cb_target; 3397 int cb_error; 3398 boolean_t cb_recurse; 3399} rollback_cbdata_t; 3400 3401static int 3402rollback_check_dependent(zfs_handle_t *zhp, void *data) 3403{ 3404 rollback_cbdata_t *cbp = data; 3405 3406 if (cbp->cb_first && cbp->cb_recurse) { 3407 (void) fprintf(stderr, gettext("cannot rollback to " 3408 "'%s': clones of previous snapshots exist\n"), 3409 cbp->cb_target); 3410 (void) fprintf(stderr, gettext("use '-R' to " 3411 "force deletion of the following clones and " 3412 "dependents:\n")); 3413 cbp->cb_first = 0; 3414 cbp->cb_error = 1; 3415 } 3416 3417 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3418 3419 zfs_close(zhp); 3420 return (0); 3421} 3422 3423/* 3424 * Report any snapshots more recent than the one specified. Used when '-r' is 3425 * not specified. We reuse this same callback for the snapshot dependents - if 3426 * 'cb_dependent' is set, then this is a dependent and we should report it 3427 * without checking the transaction group. 3428 */ 3429static int 3430rollback_check(zfs_handle_t *zhp, void *data) 3431{ 3432 rollback_cbdata_t *cbp = data; 3433 3434 if (cbp->cb_doclones) { 3435 zfs_close(zhp); 3436 return (0); 3437 } 3438 3439 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3440 if (cbp->cb_first && !cbp->cb_recurse) { 3441 (void) fprintf(stderr, gettext("cannot " 3442 "rollback to '%s': more recent snapshots " 3443 "or bookmarks exist\n"), 3444 cbp->cb_target); 3445 (void) fprintf(stderr, gettext("use '-r' to " 3446 "force deletion of the following " 3447 "snapshots and bookmarks:\n")); 3448 cbp->cb_first = 0; 3449 cbp->cb_error = 1; 3450 } 3451 3452 if (cbp->cb_recurse) { 3453 if (zfs_iter_dependents(zhp, B_TRUE, 3454 rollback_check_dependent, cbp) != 0) { 3455 zfs_close(zhp); 3456 return (-1); 3457 } 3458 } else { 3459 (void) fprintf(stderr, "%s\n", 3460 zfs_get_name(zhp)); 3461 } 3462 } 3463 zfs_close(zhp); 3464 return (0); 3465} 3466 3467static int 3468zfs_do_rollback(int argc, char **argv) 3469{ 3470 int ret = 0; 3471 int c; 3472 boolean_t force = B_FALSE; 3473 rollback_cbdata_t cb = { 0 }; 3474 zfs_handle_t *zhp, *snap; 3475 char parentname[ZFS_MAXNAMELEN]; 3476 char *delim; 3477 3478 /* check options */ 3479 while ((c = getopt(argc, argv, "rRf")) != -1) { 3480 switch (c) { 3481 case 'r': 3482 cb.cb_recurse = 1; 3483 break; 3484 case 'R': 3485 cb.cb_recurse = 1; 3486 cb.cb_doclones = 1; 3487 break; 3488 case 'f': 3489 force = B_TRUE; 3490 break; 3491 case '?': 3492 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3493 optopt); 3494 usage(B_FALSE); 3495 } 3496 } 3497 3498 argc -= optind; 3499 argv += optind; 3500 3501 /* check number of arguments */ 3502 if (argc < 1) { 3503 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3504 usage(B_FALSE); 3505 } 3506 if (argc > 1) { 3507 (void) fprintf(stderr, gettext("too many arguments\n")); 3508 usage(B_FALSE); 3509 } 3510 3511 /* open the snapshot */ 3512 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3513 return (1); 3514 3515 /* open the parent dataset */ 3516 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3517 verify((delim = strrchr(parentname, '@')) != NULL); 3518 *delim = '\0'; 3519 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3520 zfs_close(snap); 3521 return (1); 3522 } 3523 3524 /* 3525 * Check for more recent snapshots and/or clones based on the presence 3526 * of '-r' and '-R'. 3527 */ 3528 cb.cb_target = argv[0]; 3529 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3530 cb.cb_first = B_TRUE; 3531 cb.cb_error = 0; 3532 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3533 goto out; 3534 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3535 goto out; 3536 3537 if ((ret = cb.cb_error) != 0) 3538 goto out; 3539 3540 /* 3541 * Rollback parent to the given snapshot. 3542 */ 3543 ret = zfs_rollback(zhp, snap, force); 3544 3545out: 3546 zfs_close(snap); 3547 zfs_close(zhp); 3548 3549 if (ret == 0) 3550 return (0); 3551 else 3552 return (1); 3553} 3554 3555/* 3556 * zfs set property=value ... { fs | snap | vol } ... 3557 * 3558 * Sets the given properties for all datasets specified on the command line. 3559 */ 3560 3561static int 3562set_callback(zfs_handle_t *zhp, void *data) 3563{ 3564 nvlist_t *props = data; 3565 3566 if (zfs_prop_set_list(zhp, props) != 0) { 3567 switch (libzfs_errno(g_zfs)) { 3568 case EZFS_MOUNTFAILED: 3569 (void) fprintf(stderr, gettext("property may be set " 3570 "but unable to remount filesystem\n")); 3571 break; 3572 case EZFS_SHARENFSFAILED: 3573 (void) fprintf(stderr, gettext("property may be set " 3574 "but unable to reshare filesystem\n")); 3575 break; 3576 } 3577 return (1); 3578 } 3579 return (0); 3580} 3581 3582static int 3583zfs_do_set(int argc, char **argv) 3584{ 3585 nvlist_t *props = NULL; 3586 int ds_start = -1; /* argv idx of first dataset arg */ 3587 int i, ret = 0; 3588 3589 /* check for options */ 3590 if (argc > 1 && argv[1][0] == '-') { 3591 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3592 argv[1][1]); 3593 usage(B_FALSE); 3594 } 3595 3596 /* check number of arguments */ 3597 if (argc < 2) { 3598 (void) fprintf(stderr, gettext("missing arguments\n")); 3599 usage(B_FALSE); 3600 } 3601 if (argc < 3) { 3602 if (strchr(argv[1], '=') == NULL) { 3603 (void) fprintf(stderr, gettext("missing property=value " 3604 "argument(s)\n")); 3605 } else { 3606 (void) fprintf(stderr, gettext("missing dataset " 3607 "name(s)\n")); 3608 } 3609 usage(B_FALSE); 3610 } 3611 3612 /* validate argument order: prop=val args followed by dataset args */ 3613 for (i = 1; i < argc; i++) { 3614 if (strchr(argv[i], '=') != NULL) { 3615 if (ds_start > 0) { 3616 /* out-of-order prop=val argument */ 3617 (void) fprintf(stderr, gettext("invalid " 3618 "argument order\n"), i); 3619 usage(B_FALSE); 3620 } 3621 } else if (ds_start < 0) { 3622 ds_start = i; 3623 } 3624 } 3625 if (ds_start < 0) { 3626 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3627 usage(B_FALSE); 3628 } 3629 3630 /* Populate a list of property settings */ 3631 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3632 nomem(); 3633 for (i = 1; i < ds_start; i++) { 3634 if ((ret = parseprop(props, argv[i])) != 0) 3635 goto error; 3636 } 3637 3638 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3639 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3640 3641error: 3642 nvlist_free(props); 3643 return (ret); 3644} 3645 3646typedef struct snap_cbdata { 3647 nvlist_t *sd_nvl; 3648 boolean_t sd_recursive; 3649 const char *sd_snapname; 3650} snap_cbdata_t; 3651 3652static int 3653zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3654{ 3655 snap_cbdata_t *sd = arg; 3656 char *name; 3657 int rv = 0; 3658 int error; 3659 3660 if (sd->sd_recursive && 3661 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3662 zfs_close(zhp); 3663 return (0); 3664 } 3665 3666 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3667 if (error == -1) 3668 nomem(); 3669 fnvlist_add_boolean(sd->sd_nvl, name); 3670 free(name); 3671 3672 if (sd->sd_recursive) 3673 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3674 zfs_close(zhp); 3675 return (rv); 3676} 3677 3678/* 3679 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3680 * 3681 * Creates a snapshot with the given name. While functionally equivalent to 3682 * 'zfs create', it is a separate command to differentiate intent. 3683 */ 3684static int 3685zfs_do_snapshot(int argc, char **argv) 3686{ 3687 int ret = 0; 3688 int c; 3689 nvlist_t *props; 3690 snap_cbdata_t sd = { 0 }; 3691 boolean_t multiple_snaps = B_FALSE; 3692 3693 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3694 nomem(); 3695 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3696 nomem(); 3697 3698 /* check options */ 3699 while ((c = getopt(argc, argv, "ro:")) != -1) { 3700 switch (c) { 3701 case 'o': 3702 if (parseprop(props, optarg) != 0) 3703 return (1); 3704 break; 3705 case 'r': 3706 sd.sd_recursive = B_TRUE; 3707 multiple_snaps = B_TRUE; 3708 break; 3709 case '?': 3710 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3711 optopt); 3712 goto usage; 3713 } 3714 } 3715 3716 argc -= optind; 3717 argv += optind; 3718 3719 /* check number of arguments */ 3720 if (argc < 1) { 3721 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3722 goto usage; 3723 } 3724 3725 if (argc > 1) 3726 multiple_snaps = B_TRUE; 3727 for (; argc > 0; argc--, argv++) { 3728 char *atp; 3729 zfs_handle_t *zhp; 3730 3731 atp = strchr(argv[0], '@'); 3732 if (atp == NULL) 3733 goto usage; 3734 *atp = '\0'; 3735 sd.sd_snapname = atp + 1; 3736 zhp = zfs_open(g_zfs, argv[0], 3737 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3738 if (zhp == NULL) 3739 goto usage; 3740 if (zfs_snapshot_cb(zhp, &sd) != 0) 3741 goto usage; 3742 } 3743 3744 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3745 nvlist_free(sd.sd_nvl); 3746 nvlist_free(props); 3747 if (ret != 0 && multiple_snaps) 3748 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3749 return (ret != 0); 3750 3751usage: 3752 nvlist_free(sd.sd_nvl); 3753 nvlist_free(props); 3754 usage(B_FALSE); 3755 return (-1); 3756} 3757 3758/* 3759 * Send a backup stream to stdout. 3760 */ 3761static int 3762zfs_do_send(int argc, char **argv) 3763{ 3764 char *fromname = NULL; 3765 char *toname = NULL; 3766 char *resume_token = NULL; 3767 char *cp; 3768 zfs_handle_t *zhp; 3769 sendflags_t flags = { 0 }; 3770 int c, err; 3771 nvlist_t *dbgnv = NULL; 3772 boolean_t extraverbose = B_FALSE; 3773 3774 /* check options */ 3775 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3776 switch (c) { 3777 case 'i': 3778 if (fromname) 3779 usage(B_FALSE); 3780 fromname = optarg; 3781 break; 3782 case 'I': 3783 if (fromname) 3784 usage(B_FALSE); 3785 fromname = optarg; 3786 flags.doall = B_TRUE; 3787 break; 3788 case 'R': 3789 flags.replicate = B_TRUE; 3790 break; 3791 case 'p': 3792 flags.props = B_TRUE; 3793 break; 3794 case 'P': 3795 flags.parsable = B_TRUE; 3796 flags.verbose = B_TRUE; 3797 break; 3798 case 'v': 3799 if (flags.verbose) 3800 extraverbose = B_TRUE; 3801 flags.verbose = B_TRUE; 3802 flags.progress = B_TRUE; 3803 break; 3804 case 'D': 3805 flags.dedup = B_TRUE; 3806 break; 3807 case 'n': 3808 flags.dryrun = B_TRUE; 3809 break; 3810 case 'L': 3811 flags.largeblock = B_TRUE; 3812 break; 3813 case 'e': 3814 flags.embed_data = B_TRUE; 3815 break; 3816 case 't': 3817 resume_token = optarg; 3818 break; 3819 case ':': 3820 (void) fprintf(stderr, gettext("missing argument for " 3821 "'%c' option\n"), optopt); 3822 usage(B_FALSE); 3823 break; 3824 case '?': 3825 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3826 optopt); 3827 usage(B_FALSE); 3828 } 3829 } 3830 3831 argc -= optind; 3832 argv += optind; 3833 3834 if (resume_token != NULL) { 3835 if (fromname != NULL || flags.replicate || flags.props || 3836 flags.dedup) { 3837 (void) fprintf(stderr, 3838 gettext("invalid flags combined with -t\n")); 3839 usage(B_FALSE); 3840 } 3841 if (argc != 0) { 3842 (void) fprintf(stderr, gettext("no additional " 3843 "arguments are permitted with -t\n")); 3844 usage(B_FALSE); 3845 } 3846 } else { 3847 if (argc < 1) { 3848 (void) fprintf(stderr, 3849 gettext("missing snapshot argument\n")); 3850 usage(B_FALSE); 3851 } 3852 if (argc > 1) { 3853 (void) fprintf(stderr, gettext("too many arguments\n")); 3854 usage(B_FALSE); 3855 } 3856 } 3857 3858 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3859 (void) fprintf(stderr, 3860 gettext("Error: Stream can not be written to a terminal.\n" 3861 "You must redirect standard output.\n")); 3862 return (1); 3863 } 3864 3865 if (resume_token != NULL) { 3866 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3867 resume_token)); 3868 } 3869 3870 /* 3871 * Special case sending a filesystem, or from a bookmark. 3872 */ 3873 if (strchr(argv[0], '@') == NULL || 3874 (fromname && strchr(fromname, '#') != NULL)) { 3875 char frombuf[ZFS_MAXNAMELEN]; 3876 enum lzc_send_flags lzc_flags = 0; 3877 3878 if (flags.replicate || flags.doall || flags.props || 3879 flags.dedup || flags.dryrun || flags.verbose || 3880 flags.progress) { 3881 (void) fprintf(stderr, 3882 gettext("Error: " 3883 "Unsupported flag with filesystem or bookmark.\n")); 3884 return (1); 3885 } 3886 3887 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3888 if (zhp == NULL) 3889 return (1); 3890 3891 if (flags.largeblock) 3892 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3893 if (flags.embed_data) 3894 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3895 3896 if (fromname != NULL && 3897 (fromname[0] == '#' || fromname[0] == '@')) { 3898 /* 3899 * Incremental source name begins with # or @. 3900 * Default to same fs as target. 3901 */ 3902 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3903 cp = strchr(frombuf, '@'); 3904 if (cp != NULL) 3905 *cp = '\0'; 3906 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3907 fromname = frombuf; 3908 } 3909 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3910 zfs_close(zhp); 3911 return (err != 0); 3912 } 3913 3914 cp = strchr(argv[0], '@'); 3915 *cp = '\0'; 3916 toname = cp + 1; 3917 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3918 if (zhp == NULL) 3919 return (1); 3920 3921 /* 3922 * If they specified the full path to the snapshot, chop off 3923 * everything except the short name of the snapshot, but special 3924 * case if they specify the origin. 3925 */ 3926 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3927 char origin[ZFS_MAXNAMELEN]; 3928 zprop_source_t src; 3929 3930 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3931 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3932 3933 if (strcmp(origin, fromname) == 0) { 3934 fromname = NULL; 3935 flags.fromorigin = B_TRUE; 3936 } else { 3937 *cp = '\0'; 3938 if (cp != fromname && strcmp(argv[0], fromname)) { 3939 (void) fprintf(stderr, 3940 gettext("incremental source must be " 3941 "in same filesystem\n")); 3942 usage(B_FALSE); 3943 } 3944 fromname = cp + 1; 3945 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3946 (void) fprintf(stderr, 3947 gettext("invalid incremental source\n")); 3948 usage(B_FALSE); 3949 } 3950 } 3951 } 3952 3953 if (flags.replicate && fromname == NULL) 3954 flags.doall = B_TRUE; 3955 3956 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3957 extraverbose ? &dbgnv : NULL); 3958 3959 if (extraverbose && dbgnv != NULL) { 3960 /* 3961 * dump_nvlist prints to stdout, but that's been 3962 * redirected to a file. Make it print to stderr 3963 * instead. 3964 */ 3965 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3966 dump_nvlist(dbgnv, 0); 3967 nvlist_free(dbgnv); 3968 } 3969 zfs_close(zhp); 3970 3971 return (err != 0); 3972} 3973 3974/* 3975 * Restore a backup stream from stdin. 3976 */ 3977static int 3978zfs_do_receive(int argc, char **argv) 3979{ 3980 int c, err = 0; 3981 recvflags_t flags = { 0 }; 3982 boolean_t abort_resumable = B_FALSE; 3983 3984 nvlist_t *props; 3985 nvpair_t *nvp = NULL; 3986 3987 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3988 nomem(); 3989 3990 /* check options */ 3991 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3992 switch (c) { 3993 case 'o': 3994 if (parseprop(props, optarg) != 0) 3995 return (1); 3996 break; 3997 case 'd': 3998 flags.isprefix = B_TRUE; 3999 break; 4000 case 'e': 4001 flags.isprefix = B_TRUE; 4002 flags.istail = B_TRUE; 4003 break; 4004 case 'n': 4005 flags.dryrun = B_TRUE; 4006 break; 4007 case 'u': 4008 flags.nomount = B_TRUE; 4009 break; 4010 case 'v': 4011 flags.verbose = B_TRUE; 4012 break; 4013 case 's': 4014 flags.resumable = B_TRUE; 4015 break; 4016 case 'F': 4017 flags.force = B_TRUE; 4018 break; 4019 case 'A': 4020 abort_resumable = B_TRUE; 4021 break; 4022 case ':': 4023 (void) fprintf(stderr, gettext("missing argument for " 4024 "'%c' option\n"), optopt); 4025 usage(B_FALSE); 4026 break; 4027 case '?': 4028 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4029 optopt); 4030 usage(B_FALSE); 4031 } 4032 } 4033 4034 argc -= optind; 4035 argv += optind; 4036 4037 /* check number of arguments */ 4038 if (argc < 1) { 4039 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4040 usage(B_FALSE); 4041 } 4042 if (argc > 1) { 4043 (void) fprintf(stderr, gettext("too many arguments\n")); 4044 usage(B_FALSE); 4045 } 4046 4047 while ((nvp = nvlist_next_nvpair(props, nvp))) { 4048 if (strcmp(nvpair_name(nvp), "origin") != 0) { 4049 (void) fprintf(stderr, gettext("invalid option")); 4050 usage(B_FALSE); 4051 } 4052 } 4053 4054 if (abort_resumable) { 4055 if (flags.isprefix || flags.istail || flags.dryrun || 4056 flags.resumable || flags.nomount) { 4057 (void) fprintf(stderr, gettext("invalid option")); 4058 usage(B_FALSE); 4059 } 4060 4061 char namebuf[ZFS_MAXNAMELEN]; 4062 (void) snprintf(namebuf, sizeof (namebuf), 4063 "%s/%%recv", argv[0]); 4064 4065 if (zfs_dataset_exists(g_zfs, namebuf, 4066 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4067 zfs_handle_t *zhp = zfs_open(g_zfs, 4068 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4069 if (zhp == NULL) 4070 return (1); 4071 err = zfs_destroy(zhp, B_FALSE); 4072 } else { 4073 zfs_handle_t *zhp = zfs_open(g_zfs, 4074 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4075 if (zhp == NULL) 4076 usage(B_FALSE); 4077 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4078 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4079 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4080 (void) fprintf(stderr, 4081 gettext("'%s' does not have any " 4082 "resumable receive state to abort\n"), 4083 argv[0]); 4084 return (1); 4085 } 4086 err = zfs_destroy(zhp, B_FALSE); 4087 } 4088 4089 return (err != 0); 4090 } 4091 4092 if (isatty(STDIN_FILENO)) { 4093 (void) fprintf(stderr, 4094 gettext("Error: Backup stream can not be read " 4095 "from a terminal.\n" 4096 "You must redirect standard input.\n")); 4097 return (1); 4098 } 4099 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4100 4101 return (err != 0); 4102} 4103 4104/* 4105 * allow/unallow stuff 4106 */ 4107/* copied from zfs/sys/dsl_deleg.h */ 4108#define ZFS_DELEG_PERM_CREATE "create" 4109#define ZFS_DELEG_PERM_DESTROY "destroy" 4110#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4111#define ZFS_DELEG_PERM_ROLLBACK "rollback" 4112#define ZFS_DELEG_PERM_CLONE "clone" 4113#define ZFS_DELEG_PERM_PROMOTE "promote" 4114#define ZFS_DELEG_PERM_RENAME "rename" 4115#define ZFS_DELEG_PERM_MOUNT "mount" 4116#define ZFS_DELEG_PERM_SHARE "share" 4117#define ZFS_DELEG_PERM_SEND "send" 4118#define ZFS_DELEG_PERM_RECEIVE "receive" 4119#define ZFS_DELEG_PERM_ALLOW "allow" 4120#define ZFS_DELEG_PERM_USERPROP "userprop" 4121#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4122#define ZFS_DELEG_PERM_USERQUOTA "userquota" 4123#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4124#define ZFS_DELEG_PERM_USERUSED "userused" 4125#define ZFS_DELEG_PERM_GROUPUSED "groupused" 4126#define ZFS_DELEG_PERM_HOLD "hold" 4127#define ZFS_DELEG_PERM_RELEASE "release" 4128#define ZFS_DELEG_PERM_DIFF "diff" 4129#define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4130 4131#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4132 4133static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4134 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4135 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4136 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4137 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4138 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4139 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4140 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4141 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4142 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4143 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4144 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4145 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4146 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4147 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4148 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4149 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4150 4151 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4152 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4153 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4154 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4155 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4156 { NULL, ZFS_DELEG_NOTE_NONE } 4157}; 4158 4159/* permission structure */ 4160typedef struct deleg_perm { 4161 zfs_deleg_who_type_t dp_who_type; 4162 const char *dp_name; 4163 boolean_t dp_local; 4164 boolean_t dp_descend; 4165} deleg_perm_t; 4166 4167/* */ 4168typedef struct deleg_perm_node { 4169 deleg_perm_t dpn_perm; 4170 4171 uu_avl_node_t dpn_avl_node; 4172} deleg_perm_node_t; 4173 4174typedef struct fs_perm fs_perm_t; 4175 4176/* permissions set */ 4177typedef struct who_perm { 4178 zfs_deleg_who_type_t who_type; 4179 const char *who_name; /* id */ 4180 char who_ug_name[256]; /* user/group name */ 4181 fs_perm_t *who_fsperm; /* uplink */ 4182 4183 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4184} who_perm_t; 4185 4186/* */ 4187typedef struct who_perm_node { 4188 who_perm_t who_perm; 4189 uu_avl_node_t who_avl_node; 4190} who_perm_node_t; 4191 4192typedef struct fs_perm_set fs_perm_set_t; 4193/* fs permissions */ 4194struct fs_perm { 4195 const char *fsp_name; 4196 4197 uu_avl_t *fsp_sc_avl; /* sets,create */ 4198 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4199 4200 fs_perm_set_t *fsp_set; /* uplink */ 4201}; 4202 4203/* */ 4204typedef struct fs_perm_node { 4205 fs_perm_t fspn_fsperm; 4206 uu_avl_t *fspn_avl; 4207 4208 uu_list_node_t fspn_list_node; 4209} fs_perm_node_t; 4210 4211/* top level structure */ 4212struct fs_perm_set { 4213 uu_list_pool_t *fsps_list_pool; 4214 uu_list_t *fsps_list; /* list of fs_perms */ 4215 4216 uu_avl_pool_t *fsps_named_set_avl_pool; 4217 uu_avl_pool_t *fsps_who_perm_avl_pool; 4218 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4219}; 4220 4221static inline const char * 4222deleg_perm_type(zfs_deleg_note_t note) 4223{ 4224 /* subcommands */ 4225 switch (note) { 4226 /* SUBCOMMANDS */ 4227 /* OTHER */ 4228 case ZFS_DELEG_NOTE_GROUPQUOTA: 4229 case ZFS_DELEG_NOTE_GROUPUSED: 4230 case ZFS_DELEG_NOTE_USERPROP: 4231 case ZFS_DELEG_NOTE_USERQUOTA: 4232 case ZFS_DELEG_NOTE_USERUSED: 4233 /* other */ 4234 return (gettext("other")); 4235 default: 4236 return (gettext("subcommand")); 4237 } 4238} 4239 4240static int 4241who_type2weight(zfs_deleg_who_type_t who_type) 4242{ 4243 int res; 4244 switch (who_type) { 4245 case ZFS_DELEG_NAMED_SET_SETS: 4246 case ZFS_DELEG_NAMED_SET: 4247 res = 0; 4248 break; 4249 case ZFS_DELEG_CREATE_SETS: 4250 case ZFS_DELEG_CREATE: 4251 res = 1; 4252 break; 4253 case ZFS_DELEG_USER_SETS: 4254 case ZFS_DELEG_USER: 4255 res = 2; 4256 break; 4257 case ZFS_DELEG_GROUP_SETS: 4258 case ZFS_DELEG_GROUP: 4259 res = 3; 4260 break; 4261 case ZFS_DELEG_EVERYONE_SETS: 4262 case ZFS_DELEG_EVERYONE: 4263 res = 4; 4264 break; 4265 default: 4266 res = -1; 4267 } 4268 4269 return (res); 4270} 4271 4272/* ARGSUSED */ 4273static int 4274who_perm_compare(const void *larg, const void *rarg, void *unused) 4275{ 4276 const who_perm_node_t *l = larg; 4277 const who_perm_node_t *r = rarg; 4278 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4279 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4280 int lweight = who_type2weight(ltype); 4281 int rweight = who_type2weight(rtype); 4282 int res = lweight - rweight; 4283 if (res == 0) 4284 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4285 ZFS_MAX_DELEG_NAME-1); 4286 4287 if (res == 0) 4288 return (0); 4289 if (res > 0) 4290 return (1); 4291 else 4292 return (-1); 4293} 4294 4295/* ARGSUSED */ 4296static int 4297deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4298{ 4299 const deleg_perm_node_t *l = larg; 4300 const deleg_perm_node_t *r = rarg; 4301 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4302 ZFS_MAX_DELEG_NAME-1); 4303 4304 if (res == 0) 4305 return (0); 4306 4307 if (res > 0) 4308 return (1); 4309 else 4310 return (-1); 4311} 4312 4313static inline void 4314fs_perm_set_init(fs_perm_set_t *fspset) 4315{ 4316 bzero(fspset, sizeof (fs_perm_set_t)); 4317 4318 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4319 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4320 NULL, UU_DEFAULT)) == NULL) 4321 nomem(); 4322 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4323 UU_DEFAULT)) == NULL) 4324 nomem(); 4325 4326 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4327 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4328 who_perm_node_t, who_avl_node), who_perm_compare, 4329 UU_DEFAULT)) == NULL) 4330 nomem(); 4331 4332 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4333 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4334 who_perm_node_t, who_avl_node), who_perm_compare, 4335 UU_DEFAULT)) == NULL) 4336 nomem(); 4337 4338 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4339 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4340 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4341 == NULL) 4342 nomem(); 4343} 4344 4345static inline void fs_perm_fini(fs_perm_t *); 4346static inline void who_perm_fini(who_perm_t *); 4347 4348static inline void 4349fs_perm_set_fini(fs_perm_set_t *fspset) 4350{ 4351 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4352 4353 while (node != NULL) { 4354 fs_perm_node_t *next_node = 4355 uu_list_next(fspset->fsps_list, node); 4356 fs_perm_t *fsperm = &node->fspn_fsperm; 4357 fs_perm_fini(fsperm); 4358 uu_list_remove(fspset->fsps_list, node); 4359 free(node); 4360 node = next_node; 4361 } 4362 4363 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4364 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4365 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4366} 4367 4368static inline void 4369deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4370 const char *name) 4371{ 4372 deleg_perm->dp_who_type = type; 4373 deleg_perm->dp_name = name; 4374} 4375 4376static inline void 4377who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4378 zfs_deleg_who_type_t type, const char *name) 4379{ 4380 uu_avl_pool_t *pool; 4381 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4382 4383 bzero(who_perm, sizeof (who_perm_t)); 4384 4385 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4386 UU_DEFAULT)) == NULL) 4387 nomem(); 4388 4389 who_perm->who_type = type; 4390 who_perm->who_name = name; 4391 who_perm->who_fsperm = fsperm; 4392} 4393 4394static inline void 4395who_perm_fini(who_perm_t *who_perm) 4396{ 4397 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4398 4399 while (node != NULL) { 4400 deleg_perm_node_t *next_node = 4401 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4402 4403 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4404 free(node); 4405 node = next_node; 4406 } 4407 4408 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4409} 4410 4411static inline void 4412fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4413{ 4414 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4415 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4416 4417 bzero(fsperm, sizeof (fs_perm_t)); 4418 4419 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4420 == NULL) 4421 nomem(); 4422 4423 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4424 == NULL) 4425 nomem(); 4426 4427 fsperm->fsp_set = fspset; 4428 fsperm->fsp_name = fsname; 4429} 4430 4431static inline void 4432fs_perm_fini(fs_perm_t *fsperm) 4433{ 4434 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4435 while (node != NULL) { 4436 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4437 node); 4438 who_perm_t *who_perm = &node->who_perm; 4439 who_perm_fini(who_perm); 4440 uu_avl_remove(fsperm->fsp_sc_avl, node); 4441 free(node); 4442 node = next_node; 4443 } 4444 4445 node = uu_avl_first(fsperm->fsp_uge_avl); 4446 while (node != NULL) { 4447 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4448 node); 4449 who_perm_t *who_perm = &node->who_perm; 4450 who_perm_fini(who_perm); 4451 uu_avl_remove(fsperm->fsp_uge_avl, node); 4452 free(node); 4453 node = next_node; 4454 } 4455 4456 uu_avl_destroy(fsperm->fsp_sc_avl); 4457 uu_avl_destroy(fsperm->fsp_uge_avl); 4458} 4459 4460static void 4461set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4462 zfs_deleg_who_type_t who_type, const char *name, char locality) 4463{ 4464 uu_avl_index_t idx = 0; 4465 4466 deleg_perm_node_t *found_node = NULL; 4467 deleg_perm_t *deleg_perm = &node->dpn_perm; 4468 4469 deleg_perm_init(deleg_perm, who_type, name); 4470 4471 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4472 == NULL) 4473 uu_avl_insert(avl, node, idx); 4474 else { 4475 node = found_node; 4476 deleg_perm = &node->dpn_perm; 4477 } 4478 4479 4480 switch (locality) { 4481 case ZFS_DELEG_LOCAL: 4482 deleg_perm->dp_local = B_TRUE; 4483 break; 4484 case ZFS_DELEG_DESCENDENT: 4485 deleg_perm->dp_descend = B_TRUE; 4486 break; 4487 case ZFS_DELEG_NA: 4488 break; 4489 default: 4490 assert(B_FALSE); /* invalid locality */ 4491 } 4492} 4493 4494static inline int 4495parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4496{ 4497 nvpair_t *nvp = NULL; 4498 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4499 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4500 zfs_deleg_who_type_t who_type = who_perm->who_type; 4501 4502 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4503 const char *name = nvpair_name(nvp); 4504 data_type_t type = nvpair_type(nvp); 4505 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4506 deleg_perm_node_t *node = 4507 safe_malloc(sizeof (deleg_perm_node_t)); 4508 4509 assert(type == DATA_TYPE_BOOLEAN); 4510 4511 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4512 set_deleg_perm_node(avl, node, who_type, name, locality); 4513 } 4514 4515 return (0); 4516} 4517 4518static inline int 4519parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4520{ 4521 nvpair_t *nvp = NULL; 4522 fs_perm_set_t *fspset = fsperm->fsp_set; 4523 4524 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4525 nvlist_t *nvl2 = NULL; 4526 const char *name = nvpair_name(nvp); 4527 uu_avl_t *avl = NULL; 4528 uu_avl_pool_t *avl_pool = NULL; 4529 zfs_deleg_who_type_t perm_type = name[0]; 4530 char perm_locality = name[1]; 4531 const char *perm_name = name + 3; 4532 boolean_t is_set = B_TRUE; 4533 who_perm_t *who_perm = NULL; 4534 4535 assert('$' == name[2]); 4536 4537 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4538 return (-1); 4539 4540 switch (perm_type) { 4541 case ZFS_DELEG_CREATE: 4542 case ZFS_DELEG_CREATE_SETS: 4543 case ZFS_DELEG_NAMED_SET: 4544 case ZFS_DELEG_NAMED_SET_SETS: 4545 avl_pool = fspset->fsps_named_set_avl_pool; 4546 avl = fsperm->fsp_sc_avl; 4547 break; 4548 case ZFS_DELEG_USER: 4549 case ZFS_DELEG_USER_SETS: 4550 case ZFS_DELEG_GROUP: 4551 case ZFS_DELEG_GROUP_SETS: 4552 case ZFS_DELEG_EVERYONE: 4553 case ZFS_DELEG_EVERYONE_SETS: 4554 avl_pool = fspset->fsps_who_perm_avl_pool; 4555 avl = fsperm->fsp_uge_avl; 4556 break; 4557 4558 default: 4559 assert(!"unhandled zfs_deleg_who_type_t"); 4560 } 4561 4562 if (is_set) { 4563 who_perm_node_t *found_node = NULL; 4564 who_perm_node_t *node = safe_malloc( 4565 sizeof (who_perm_node_t)); 4566 who_perm = &node->who_perm; 4567 uu_avl_index_t idx = 0; 4568 4569 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4570 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4571 4572 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4573 == NULL) { 4574 if (avl == fsperm->fsp_uge_avl) { 4575 uid_t rid = 0; 4576 struct passwd *p = NULL; 4577 struct group *g = NULL; 4578 const char *nice_name = NULL; 4579 4580 switch (perm_type) { 4581 case ZFS_DELEG_USER_SETS: 4582 case ZFS_DELEG_USER: 4583 rid = atoi(perm_name); 4584 p = getpwuid(rid); 4585 if (p) 4586 nice_name = p->pw_name; 4587 break; 4588 case ZFS_DELEG_GROUP_SETS: 4589 case ZFS_DELEG_GROUP: 4590 rid = atoi(perm_name); 4591 g = getgrgid(rid); 4592 if (g) 4593 nice_name = g->gr_name; 4594 break; 4595 4596 default: 4597 break; 4598 } 4599 4600 if (nice_name != NULL) 4601 (void) strlcpy( 4602 node->who_perm.who_ug_name, 4603 nice_name, 256); 4604 } 4605 4606 uu_avl_insert(avl, node, idx); 4607 } else { 4608 node = found_node; 4609 who_perm = &node->who_perm; 4610 } 4611 } 4612 4613 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4614 } 4615 4616 return (0); 4617} 4618 4619static inline int 4620parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4621{ 4622 nvpair_t *nvp = NULL; 4623 uu_avl_index_t idx = 0; 4624 4625 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4626 nvlist_t *nvl2 = NULL; 4627 const char *fsname = nvpair_name(nvp); 4628 data_type_t type = nvpair_type(nvp); 4629 fs_perm_t *fsperm = NULL; 4630 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4631 if (node == NULL) 4632 nomem(); 4633 4634 fsperm = &node->fspn_fsperm; 4635 4636 assert(DATA_TYPE_NVLIST == type); 4637 4638 uu_list_node_init(node, &node->fspn_list_node, 4639 fspset->fsps_list_pool); 4640 4641 idx = uu_list_numnodes(fspset->fsps_list); 4642 fs_perm_init(fsperm, fspset, fsname); 4643 4644 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4645 return (-1); 4646 4647 (void) parse_fs_perm(fsperm, nvl2); 4648 4649 uu_list_insert(fspset->fsps_list, node, idx); 4650 } 4651 4652 return (0); 4653} 4654 4655static inline const char * 4656deleg_perm_comment(zfs_deleg_note_t note) 4657{ 4658 const char *str = ""; 4659 4660 /* subcommands */ 4661 switch (note) { 4662 /* SUBCOMMANDS */ 4663 case ZFS_DELEG_NOTE_ALLOW: 4664 str = gettext("Must also have the permission that is being" 4665 "\n\t\t\t\tallowed"); 4666 break; 4667 case ZFS_DELEG_NOTE_CLONE: 4668 str = gettext("Must also have the 'create' ability and 'mount'" 4669 "\n\t\t\t\tability in the origin file system"); 4670 break; 4671 case ZFS_DELEG_NOTE_CREATE: 4672 str = gettext("Must also have the 'mount' ability"); 4673 break; 4674 case ZFS_DELEG_NOTE_DESTROY: 4675 str = gettext("Must also have the 'mount' ability"); 4676 break; 4677 case ZFS_DELEG_NOTE_DIFF: 4678 str = gettext("Allows lookup of paths within a dataset;" 4679 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4680 "\n\t\t\t\tin order to use zfs diff"); 4681 break; 4682 case ZFS_DELEG_NOTE_HOLD: 4683 str = gettext("Allows adding a user hold to a snapshot"); 4684 break; 4685 case ZFS_DELEG_NOTE_MOUNT: 4686 str = gettext("Allows mount/umount of ZFS datasets"); 4687 break; 4688 case ZFS_DELEG_NOTE_PROMOTE: 4689 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4690 " 'promote' ability in the origin file system"); 4691 break; 4692 case ZFS_DELEG_NOTE_RECEIVE: 4693 str = gettext("Must also have the 'mount' and 'create'" 4694 " ability"); 4695 break; 4696 case ZFS_DELEG_NOTE_RELEASE: 4697 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4698 "might destroy the snapshot"); 4699 break; 4700 case ZFS_DELEG_NOTE_RENAME: 4701 str = gettext("Must also have the 'mount' and 'create'" 4702 "\n\t\t\t\tability in the new parent"); 4703 break; 4704 case ZFS_DELEG_NOTE_ROLLBACK: 4705 str = gettext(""); 4706 break; 4707 case ZFS_DELEG_NOTE_SEND: 4708 str = gettext(""); 4709 break; 4710 case ZFS_DELEG_NOTE_SHARE: 4711 str = gettext("Allows sharing file systems over NFS or SMB" 4712 "\n\t\t\t\tprotocols"); 4713 break; 4714 case ZFS_DELEG_NOTE_SNAPSHOT: 4715 str = gettext(""); 4716 break; 4717/* 4718 * case ZFS_DELEG_NOTE_VSCAN: 4719 * str = gettext(""); 4720 * break; 4721 */ 4722 /* OTHER */ 4723 case ZFS_DELEG_NOTE_GROUPQUOTA: 4724 str = gettext("Allows accessing any groupquota@... property"); 4725 break; 4726 case ZFS_DELEG_NOTE_GROUPUSED: 4727 str = gettext("Allows reading any groupused@... property"); 4728 break; 4729 case ZFS_DELEG_NOTE_USERPROP: 4730 str = gettext("Allows changing any user property"); 4731 break; 4732 case ZFS_DELEG_NOTE_USERQUOTA: 4733 str = gettext("Allows accessing any userquota@... property"); 4734 break; 4735 case ZFS_DELEG_NOTE_USERUSED: 4736 str = gettext("Allows reading any userused@... property"); 4737 break; 4738 /* other */ 4739 default: 4740 str = ""; 4741 } 4742 4743 return (str); 4744} 4745 4746struct allow_opts { 4747 boolean_t local; 4748 boolean_t descend; 4749 boolean_t user; 4750 boolean_t group; 4751 boolean_t everyone; 4752 boolean_t create; 4753 boolean_t set; 4754 boolean_t recursive; /* unallow only */ 4755 boolean_t prt_usage; 4756 4757 boolean_t prt_perms; 4758 char *who; 4759 char *perms; 4760 const char *dataset; 4761}; 4762 4763static inline int 4764prop_cmp(const void *a, const void *b) 4765{ 4766 const char *str1 = *(const char **)a; 4767 const char *str2 = *(const char **)b; 4768 return (strcmp(str1, str2)); 4769} 4770 4771static void 4772allow_usage(boolean_t un, boolean_t requested, const char *msg) 4773{ 4774 const char *opt_desc[] = { 4775 "-h", gettext("show this help message and exit"), 4776 "-l", gettext("set permission locally"), 4777 "-d", gettext("set permission for descents"), 4778 "-u", gettext("set permission for user"), 4779 "-g", gettext("set permission for group"), 4780 "-e", gettext("set permission for everyone"), 4781 "-c", gettext("set create time permission"), 4782 "-s", gettext("define permission set"), 4783 /* unallow only */ 4784 "-r", gettext("remove permissions recursively"), 4785 }; 4786 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4787 size_t allow_size = unallow_size - 2; 4788 const char *props[ZFS_NUM_PROPS]; 4789 int i; 4790 size_t count = 0; 4791 FILE *fp = requested ? stdout : stderr; 4792 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4793 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4794 4795 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4796 HELP_ALLOW)); 4797 (void) fprintf(fp, gettext("Options:\n")); 4798 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4799 const char *opt = opt_desc[i++]; 4800 const char *optdsc = opt_desc[i]; 4801 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4802 } 4803 4804 (void) fprintf(fp, gettext("\nThe following permissions are " 4805 "supported:\n\n")); 4806 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4807 gettext("NOTES")); 4808 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4809 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4810 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4811 const char *perm_type = deleg_perm_type(perm_note); 4812 const char *perm_comment = deleg_perm_comment(perm_note); 4813 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4814 } 4815 4816 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4817 zprop_desc_t *pd = &pdtbl[i]; 4818 if (pd->pd_visible != B_TRUE) 4819 continue; 4820 4821 if (pd->pd_attr == PROP_READONLY) 4822 continue; 4823 4824 props[count++] = pd->pd_name; 4825 } 4826 props[count] = NULL; 4827 4828 qsort(props, count, sizeof (char *), prop_cmp); 4829 4830 for (i = 0; i < count; i++) 4831 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4832 4833 if (msg != NULL) 4834 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4835 4836 exit(requested ? 0 : 2); 4837} 4838 4839static inline const char * 4840munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4841 char **permsp) 4842{ 4843 if (un && argc == expected_argc - 1) 4844 *permsp = NULL; 4845 else if (argc == expected_argc) 4846 *permsp = argv[argc - 2]; 4847 else 4848 allow_usage(un, B_FALSE, 4849 gettext("wrong number of parameters\n")); 4850 4851 return (argv[argc - 1]); 4852} 4853 4854static void 4855parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4856{ 4857 int uge_sum = opts->user + opts->group + opts->everyone; 4858 int csuge_sum = opts->create + opts->set + uge_sum; 4859 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4860 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4861 4862 if (uge_sum > 1) 4863 allow_usage(un, B_FALSE, 4864 gettext("-u, -g, and -e are mutually exclusive\n")); 4865 4866 if (opts->prt_usage) { 4867 if (argc == 0 && all_sum == 0) 4868 allow_usage(un, B_TRUE, NULL); 4869 else 4870 usage(B_FALSE); 4871 } 4872 4873 if (opts->set) { 4874 if (csuge_sum > 1) 4875 allow_usage(un, B_FALSE, 4876 gettext("invalid options combined with -s\n")); 4877 4878 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4879 if (argv[0][0] != '@') 4880 allow_usage(un, B_FALSE, 4881 gettext("invalid set name: missing '@' prefix\n")); 4882 opts->who = argv[0]; 4883 } else if (opts->create) { 4884 if (ldcsuge_sum > 1) 4885 allow_usage(un, B_FALSE, 4886 gettext("invalid options combined with -c\n")); 4887 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4888 } else if (opts->everyone) { 4889 if (csuge_sum > 1) 4890 allow_usage(un, B_FALSE, 4891 gettext("invalid options combined with -e\n")); 4892 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4893 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4894 == 0) { 4895 opts->everyone = B_TRUE; 4896 argc--; 4897 argv++; 4898 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4899 } else if (argc == 1 && !un) { 4900 opts->prt_perms = B_TRUE; 4901 opts->dataset = argv[argc-1]; 4902 } else { 4903 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4904 opts->who = argv[0]; 4905 } 4906 4907 if (!opts->local && !opts->descend) { 4908 opts->local = B_TRUE; 4909 opts->descend = B_TRUE; 4910 } 4911} 4912 4913static void 4914store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4915 const char *who, char *perms, nvlist_t *top_nvl) 4916{ 4917 int i; 4918 char ld[2] = { '\0', '\0' }; 4919 char who_buf[ZFS_MAXNAMELEN+32]; 4920 char base_type = '\0'; 4921 char set_type = '\0'; 4922 nvlist_t *base_nvl = NULL; 4923 nvlist_t *set_nvl = NULL; 4924 nvlist_t *nvl; 4925 4926 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4927 nomem(); 4928 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4929 nomem(); 4930 4931 switch (type) { 4932 case ZFS_DELEG_NAMED_SET_SETS: 4933 case ZFS_DELEG_NAMED_SET: 4934 set_type = ZFS_DELEG_NAMED_SET_SETS; 4935 base_type = ZFS_DELEG_NAMED_SET; 4936 ld[0] = ZFS_DELEG_NA; 4937 break; 4938 case ZFS_DELEG_CREATE_SETS: 4939 case ZFS_DELEG_CREATE: 4940 set_type = ZFS_DELEG_CREATE_SETS; 4941 base_type = ZFS_DELEG_CREATE; 4942 ld[0] = ZFS_DELEG_NA; 4943 break; 4944 case ZFS_DELEG_USER_SETS: 4945 case ZFS_DELEG_USER: 4946 set_type = ZFS_DELEG_USER_SETS; 4947 base_type = ZFS_DELEG_USER; 4948 if (local) 4949 ld[0] = ZFS_DELEG_LOCAL; 4950 if (descend) 4951 ld[1] = ZFS_DELEG_DESCENDENT; 4952 break; 4953 case ZFS_DELEG_GROUP_SETS: 4954 case ZFS_DELEG_GROUP: 4955 set_type = ZFS_DELEG_GROUP_SETS; 4956 base_type = ZFS_DELEG_GROUP; 4957 if (local) 4958 ld[0] = ZFS_DELEG_LOCAL; 4959 if (descend) 4960 ld[1] = ZFS_DELEG_DESCENDENT; 4961 break; 4962 case ZFS_DELEG_EVERYONE_SETS: 4963 case ZFS_DELEG_EVERYONE: 4964 set_type = ZFS_DELEG_EVERYONE_SETS; 4965 base_type = ZFS_DELEG_EVERYONE; 4966 if (local) 4967 ld[0] = ZFS_DELEG_LOCAL; 4968 if (descend) 4969 ld[1] = ZFS_DELEG_DESCENDENT; 4970 break; 4971 4972 default: 4973 assert(set_type != '\0' && base_type != '\0'); 4974 } 4975 4976 if (perms != NULL) { 4977 char *curr = perms; 4978 char *end = curr + strlen(perms); 4979 4980 while (curr < end) { 4981 char *delim = strchr(curr, ','); 4982 if (delim == NULL) 4983 delim = end; 4984 else 4985 *delim = '\0'; 4986 4987 if (curr[0] == '@') 4988 nvl = set_nvl; 4989 else 4990 nvl = base_nvl; 4991 4992 (void) nvlist_add_boolean(nvl, curr); 4993 if (delim != end) 4994 *delim = ','; 4995 curr = delim + 1; 4996 } 4997 4998 for (i = 0; i < 2; i++) { 4999 char locality = ld[i]; 5000 if (locality == 0) 5001 continue; 5002 5003 if (!nvlist_empty(base_nvl)) { 5004 if (who != NULL) 5005 (void) snprintf(who_buf, 5006 sizeof (who_buf), "%c%c$%s", 5007 base_type, locality, who); 5008 else 5009 (void) snprintf(who_buf, 5010 sizeof (who_buf), "%c%c$", 5011 base_type, locality); 5012 5013 (void) nvlist_add_nvlist(top_nvl, who_buf, 5014 base_nvl); 5015 } 5016 5017 5018 if (!nvlist_empty(set_nvl)) { 5019 if (who != NULL) 5020 (void) snprintf(who_buf, 5021 sizeof (who_buf), "%c%c$%s", 5022 set_type, locality, who); 5023 else 5024 (void) snprintf(who_buf, 5025 sizeof (who_buf), "%c%c$", 5026 set_type, locality); 5027 5028 (void) nvlist_add_nvlist(top_nvl, who_buf, 5029 set_nvl); 5030 } 5031 } 5032 } else { 5033 for (i = 0; i < 2; i++) { 5034 char locality = ld[i]; 5035 if (locality == 0) 5036 continue; 5037 5038 if (who != NULL) 5039 (void) snprintf(who_buf, sizeof (who_buf), 5040 "%c%c$%s", base_type, locality, who); 5041 else 5042 (void) snprintf(who_buf, sizeof (who_buf), 5043 "%c%c$", base_type, locality); 5044 (void) nvlist_add_boolean(top_nvl, who_buf); 5045 5046 if (who != NULL) 5047 (void) snprintf(who_buf, sizeof (who_buf), 5048 "%c%c$%s", set_type, locality, who); 5049 else 5050 (void) snprintf(who_buf, sizeof (who_buf), 5051 "%c%c$", set_type, locality); 5052 (void) nvlist_add_boolean(top_nvl, who_buf); 5053 } 5054 } 5055} 5056 5057static int 5058construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5059{ 5060 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5061 nomem(); 5062 5063 if (opts->set) { 5064 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5065 opts->descend, opts->who, opts->perms, *nvlp); 5066 } else if (opts->create) { 5067 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5068 opts->descend, NULL, opts->perms, *nvlp); 5069 } else if (opts->everyone) { 5070 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5071 opts->descend, NULL, opts->perms, *nvlp); 5072 } else { 5073 char *curr = opts->who; 5074 char *end = curr + strlen(curr); 5075 5076 while (curr < end) { 5077 const char *who; 5078 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5079 char *endch; 5080 char *delim = strchr(curr, ','); 5081 char errbuf[256]; 5082 char id[64]; 5083 struct passwd *p = NULL; 5084 struct group *g = NULL; 5085 5086 uid_t rid; 5087 if (delim == NULL) 5088 delim = end; 5089 else 5090 *delim = '\0'; 5091 5092 rid = (uid_t)strtol(curr, &endch, 0); 5093 if (opts->user) { 5094 who_type = ZFS_DELEG_USER; 5095 if (*endch != '\0') 5096 p = getpwnam(curr); 5097 else 5098 p = getpwuid(rid); 5099 5100 if (p != NULL) 5101 rid = p->pw_uid; 5102 else { 5103 (void) snprintf(errbuf, 256, gettext( 5104 "invalid user %s"), curr); 5105 allow_usage(un, B_TRUE, errbuf); 5106 } 5107 } else if (opts->group) { 5108 who_type = ZFS_DELEG_GROUP; 5109 if (*endch != '\0') 5110 g = getgrnam(curr); 5111 else 5112 g = getgrgid(rid); 5113 5114 if (g != NULL) 5115 rid = g->gr_gid; 5116 else { 5117 (void) snprintf(errbuf, 256, gettext( 5118 "invalid group %s"), curr); 5119 allow_usage(un, B_TRUE, errbuf); 5120 } 5121 } else { 5122 if (*endch != '\0') { 5123 p = getpwnam(curr); 5124 } else { 5125 p = getpwuid(rid); 5126 } 5127 5128 if (p == NULL) { 5129 if (*endch != '\0') { 5130 g = getgrnam(curr); 5131 } else { 5132 g = getgrgid(rid); 5133 } 5134 } 5135 5136 if (p != NULL) { 5137 who_type = ZFS_DELEG_USER; 5138 rid = p->pw_uid; 5139 } else if (g != NULL) { 5140 who_type = ZFS_DELEG_GROUP; 5141 rid = g->gr_gid; 5142 } else { 5143 (void) snprintf(errbuf, 256, gettext( 5144 "invalid user/group %s"), curr); 5145 allow_usage(un, B_TRUE, errbuf); 5146 } 5147 } 5148 5149 (void) sprintf(id, "%u", rid); 5150 who = id; 5151 5152 store_allow_perm(who_type, opts->local, 5153 opts->descend, who, opts->perms, *nvlp); 5154 curr = delim + 1; 5155 } 5156 } 5157 5158 return (0); 5159} 5160 5161static void 5162print_set_creat_perms(uu_avl_t *who_avl) 5163{ 5164 const char *sc_title[] = { 5165 gettext("Permission sets:\n"), 5166 gettext("Create time permissions:\n"), 5167 NULL 5168 }; 5169 const char **title_ptr = sc_title; 5170 who_perm_node_t *who_node = NULL; 5171 int prev_weight = -1; 5172 5173 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5174 who_node = uu_avl_next(who_avl, who_node)) { 5175 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5176 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5177 const char *who_name = who_node->who_perm.who_name; 5178 int weight = who_type2weight(who_type); 5179 boolean_t first = B_TRUE; 5180 deleg_perm_node_t *deleg_node; 5181 5182 if (prev_weight != weight) { 5183 (void) printf(*title_ptr++); 5184 prev_weight = weight; 5185 } 5186 5187 if (who_name == NULL || strnlen(who_name, 1) == 0) 5188 (void) printf("\t"); 5189 else 5190 (void) printf("\t%s ", who_name); 5191 5192 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5193 deleg_node = uu_avl_next(avl, deleg_node)) { 5194 if (first) { 5195 (void) printf("%s", 5196 deleg_node->dpn_perm.dp_name); 5197 first = B_FALSE; 5198 } else 5199 (void) printf(",%s", 5200 deleg_node->dpn_perm.dp_name); 5201 } 5202 5203 (void) printf("\n"); 5204 } 5205} 5206 5207static void 5208print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5209 const char *title) 5210{ 5211 who_perm_node_t *who_node = NULL; 5212 boolean_t prt_title = B_TRUE; 5213 uu_avl_walk_t *walk; 5214 5215 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5216 nomem(); 5217 5218 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5219 const char *who_name = who_node->who_perm.who_name; 5220 const char *nice_who_name = who_node->who_perm.who_ug_name; 5221 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5222 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5223 char delim = ' '; 5224 deleg_perm_node_t *deleg_node; 5225 boolean_t prt_who = B_TRUE; 5226 5227 for (deleg_node = uu_avl_first(avl); 5228 deleg_node != NULL; 5229 deleg_node = uu_avl_next(avl, deleg_node)) { 5230 if (local != deleg_node->dpn_perm.dp_local || 5231 descend != deleg_node->dpn_perm.dp_descend) 5232 continue; 5233 5234 if (prt_who) { 5235 const char *who = NULL; 5236 if (prt_title) { 5237 prt_title = B_FALSE; 5238 (void) printf(title); 5239 } 5240 5241 switch (who_type) { 5242 case ZFS_DELEG_USER_SETS: 5243 case ZFS_DELEG_USER: 5244 who = gettext("user"); 5245 if (nice_who_name) 5246 who_name = nice_who_name; 5247 break; 5248 case ZFS_DELEG_GROUP_SETS: 5249 case ZFS_DELEG_GROUP: 5250 who = gettext("group"); 5251 if (nice_who_name) 5252 who_name = nice_who_name; 5253 break; 5254 case ZFS_DELEG_EVERYONE_SETS: 5255 case ZFS_DELEG_EVERYONE: 5256 who = gettext("everyone"); 5257 who_name = NULL; 5258 break; 5259 5260 default: 5261 assert(who != NULL); 5262 } 5263 5264 prt_who = B_FALSE; 5265 if (who_name == NULL) 5266 (void) printf("\t%s", who); 5267 else 5268 (void) printf("\t%s %s", who, who_name); 5269 } 5270 5271 (void) printf("%c%s", delim, 5272 deleg_node->dpn_perm.dp_name); 5273 delim = ','; 5274 } 5275 5276 if (!prt_who) 5277 (void) printf("\n"); 5278 } 5279 5280 uu_avl_walk_end(walk); 5281} 5282 5283static void 5284print_fs_perms(fs_perm_set_t *fspset) 5285{ 5286 fs_perm_node_t *node = NULL; 5287 char buf[ZFS_MAXNAMELEN+32]; 5288 const char *dsname = buf; 5289 5290 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5291 node = uu_list_next(fspset->fsps_list, node)) { 5292 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5293 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5294 int left = 0; 5295 5296 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5297 gettext("---- Permissions on %s "), 5298 node->fspn_fsperm.fsp_name); 5299 (void) printf(dsname); 5300 left = 70 - strlen(buf); 5301 while (left-- > 0) 5302 (void) printf("-"); 5303 (void) printf("\n"); 5304 5305 print_set_creat_perms(sc_avl); 5306 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5307 gettext("Local permissions:\n")); 5308 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5309 gettext("Descendent permissions:\n")); 5310 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5311 gettext("Local+Descendent permissions:\n")); 5312 } 5313} 5314 5315static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5316 5317struct deleg_perms { 5318 boolean_t un; 5319 nvlist_t *nvl; 5320}; 5321 5322static int 5323set_deleg_perms(zfs_handle_t *zhp, void *data) 5324{ 5325 struct deleg_perms *perms = (struct deleg_perms *)data; 5326 zfs_type_t zfs_type = zfs_get_type(zhp); 5327 5328 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5329 return (0); 5330 5331 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5332} 5333 5334static int 5335zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5336{ 5337 zfs_handle_t *zhp; 5338 nvlist_t *perm_nvl = NULL; 5339 nvlist_t *update_perm_nvl = NULL; 5340 int error = 1; 5341 int c; 5342 struct allow_opts opts = { 0 }; 5343 5344 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5345 5346 /* check opts */ 5347 while ((c = getopt(argc, argv, optstr)) != -1) { 5348 switch (c) { 5349 case 'l': 5350 opts.local = B_TRUE; 5351 break; 5352 case 'd': 5353 opts.descend = B_TRUE; 5354 break; 5355 case 'u': 5356 opts.user = B_TRUE; 5357 break; 5358 case 'g': 5359 opts.group = B_TRUE; 5360 break; 5361 case 'e': 5362 opts.everyone = B_TRUE; 5363 break; 5364 case 's': 5365 opts.set = B_TRUE; 5366 break; 5367 case 'c': 5368 opts.create = B_TRUE; 5369 break; 5370 case 'r': 5371 opts.recursive = B_TRUE; 5372 break; 5373 case ':': 5374 (void) fprintf(stderr, gettext("missing argument for " 5375 "'%c' option\n"), optopt); 5376 usage(B_FALSE); 5377 break; 5378 case 'h': 5379 opts.prt_usage = B_TRUE; 5380 break; 5381 case '?': 5382 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5383 optopt); 5384 usage(B_FALSE); 5385 } 5386 } 5387 5388 argc -= optind; 5389 argv += optind; 5390 5391 /* check arguments */ 5392 parse_allow_args(argc, argv, un, &opts); 5393 5394 /* try to open the dataset */ 5395 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5396 ZFS_TYPE_VOLUME)) == NULL) { 5397 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5398 opts.dataset); 5399 return (-1); 5400 } 5401 5402 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5403 goto cleanup2; 5404 5405 fs_perm_set_init(&fs_perm_set); 5406 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5407 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5408 goto cleanup1; 5409 } 5410 5411 if (opts.prt_perms) 5412 print_fs_perms(&fs_perm_set); 5413 else { 5414 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5415 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5416 goto cleanup0; 5417 5418 if (un && opts.recursive) { 5419 struct deleg_perms data = { un, update_perm_nvl }; 5420 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5421 &data) != 0) 5422 goto cleanup0; 5423 } 5424 } 5425 5426 error = 0; 5427 5428cleanup0: 5429 nvlist_free(perm_nvl); 5430 nvlist_free(update_perm_nvl); 5431cleanup1: 5432 fs_perm_set_fini(&fs_perm_set); 5433cleanup2: 5434 zfs_close(zhp); 5435 5436 return (error); 5437} 5438 5439static int 5440zfs_do_allow(int argc, char **argv) 5441{ 5442 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5443} 5444 5445static int 5446zfs_do_unallow(int argc, char **argv) 5447{ 5448 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5449} 5450 5451static int 5452zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5453{ 5454 int errors = 0; 5455 int i; 5456 const char *tag; 5457 boolean_t recursive = B_FALSE; 5458 const char *opts = holding ? "rt" : "r"; 5459 int c; 5460 5461 /* check options */ 5462 while ((c = getopt(argc, argv, opts)) != -1) { 5463 switch (c) { 5464 case 'r': 5465 recursive = B_TRUE; 5466 break; 5467 case '?': 5468 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5469 optopt); 5470 usage(B_FALSE); 5471 } 5472 } 5473 5474 argc -= optind; 5475 argv += optind; 5476 5477 /* check number of arguments */ 5478 if (argc < 2) 5479 usage(B_FALSE); 5480 5481 tag = argv[0]; 5482 --argc; 5483 ++argv; 5484 5485 if (holding && tag[0] == '.') { 5486 /* tags starting with '.' are reserved for libzfs */ 5487 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5488 usage(B_FALSE); 5489 } 5490 5491 for (i = 0; i < argc; ++i) { 5492 zfs_handle_t *zhp; 5493 char parent[ZFS_MAXNAMELEN]; 5494 const char *delim; 5495 char *path = argv[i]; 5496 5497 delim = strchr(path, '@'); 5498 if (delim == NULL) { 5499 (void) fprintf(stderr, 5500 gettext("'%s' is not a snapshot\n"), path); 5501 ++errors; 5502 continue; 5503 } 5504 (void) strncpy(parent, path, delim - path); 5505 parent[delim - path] = '\0'; 5506 5507 zhp = zfs_open(g_zfs, parent, 5508 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5509 if (zhp == NULL) { 5510 ++errors; 5511 continue; 5512 } 5513 if (holding) { 5514 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5515 ++errors; 5516 } else { 5517 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5518 ++errors; 5519 } 5520 zfs_close(zhp); 5521 } 5522 5523 return (errors != 0); 5524} 5525 5526/* 5527 * zfs hold [-r] [-t] <tag> <snap> ... 5528 * 5529 * -r Recursively hold 5530 * 5531 * Apply a user-hold with the given tag to the list of snapshots. 5532 */ 5533static int 5534zfs_do_hold(int argc, char **argv) 5535{ 5536 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5537} 5538 5539/* 5540 * zfs release [-r] <tag> <snap> ... 5541 * 5542 * -r Recursively release 5543 * 5544 * Release a user-hold with the given tag from the list of snapshots. 5545 */ 5546static int 5547zfs_do_release(int argc, char **argv) 5548{ 5549 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5550} 5551 5552typedef struct holds_cbdata { 5553 boolean_t cb_recursive; 5554 const char *cb_snapname; 5555 nvlist_t **cb_nvlp; 5556 size_t cb_max_namelen; 5557 size_t cb_max_taglen; 5558} holds_cbdata_t; 5559 5560#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5561#define DATETIME_BUF_LEN (32) 5562/* 5563 * 5564 */ 5565static void 5566print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5567{ 5568 int i; 5569 nvpair_t *nvp = NULL; 5570 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5571 const char *col; 5572 5573 if (!scripted) { 5574 for (i = 0; i < 3; i++) { 5575 col = gettext(hdr_cols[i]); 5576 if (i < 2) 5577 (void) printf("%-*s ", i ? tagwidth : nwidth, 5578 col); 5579 else 5580 (void) printf("%s\n", col); 5581 } 5582 } 5583 5584 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5585 char *zname = nvpair_name(nvp); 5586 nvlist_t *nvl2; 5587 nvpair_t *nvp2 = NULL; 5588 (void) nvpair_value_nvlist(nvp, &nvl2); 5589 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5590 char tsbuf[DATETIME_BUF_LEN]; 5591 char *tagname = nvpair_name(nvp2); 5592 uint64_t val = 0; 5593 time_t time; 5594 struct tm t; 5595 char sep = scripted ? '\t' : ' '; 5596 size_t sepnum = scripted ? 1 : 2; 5597 5598 (void) nvpair_value_uint64(nvp2, &val); 5599 time = (time_t)val; 5600 (void) localtime_r(&time, &t); 5601 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5602 gettext(STRFTIME_FMT_STR), &t); 5603 5604 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5605 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5606 } 5607 } 5608} 5609 5610/* 5611 * Generic callback function to list a dataset or snapshot. 5612 */ 5613static int 5614holds_callback(zfs_handle_t *zhp, void *data) 5615{ 5616 holds_cbdata_t *cbp = data; 5617 nvlist_t *top_nvl = *cbp->cb_nvlp; 5618 nvlist_t *nvl = NULL; 5619 nvpair_t *nvp = NULL; 5620 const char *zname = zfs_get_name(zhp); 5621 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5622 5623 if (cbp->cb_recursive) { 5624 const char *snapname; 5625 char *delim = strchr(zname, '@'); 5626 if (delim == NULL) 5627 return (0); 5628 5629 snapname = delim + 1; 5630 if (strcmp(cbp->cb_snapname, snapname)) 5631 return (0); 5632 } 5633 5634 if (zfs_get_holds(zhp, &nvl) != 0) 5635 return (-1); 5636 5637 if (znamelen > cbp->cb_max_namelen) 5638 cbp->cb_max_namelen = znamelen; 5639 5640 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5641 const char *tag = nvpair_name(nvp); 5642 size_t taglen = strnlen(tag, MAXNAMELEN); 5643 if (taglen > cbp->cb_max_taglen) 5644 cbp->cb_max_taglen = taglen; 5645 } 5646 5647 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5648} 5649 5650/* 5651 * zfs holds [-r] <snap> ... 5652 * 5653 * -r Recursively hold 5654 */ 5655static int 5656zfs_do_holds(int argc, char **argv) 5657{ 5658 int errors = 0; 5659 int c; 5660 int i; 5661 boolean_t scripted = B_FALSE; 5662 boolean_t recursive = B_FALSE; 5663 const char *opts = "rH"; 5664 nvlist_t *nvl; 5665 5666 int types = ZFS_TYPE_SNAPSHOT; 5667 holds_cbdata_t cb = { 0 }; 5668 5669 int limit = 0; 5670 int ret = 0; 5671 int flags = 0; 5672 5673 /* check options */ 5674 while ((c = getopt(argc, argv, opts)) != -1) { 5675 switch (c) { 5676 case 'r': 5677 recursive = B_TRUE; 5678 break; 5679 case 'H': 5680 scripted = B_TRUE; 5681 break; 5682 case '?': 5683 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5684 optopt); 5685 usage(B_FALSE); 5686 } 5687 } 5688 5689 if (recursive) { 5690 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5691 flags |= ZFS_ITER_RECURSE; 5692 } 5693 5694 argc -= optind; 5695 argv += optind; 5696 5697 /* check number of arguments */ 5698 if (argc < 1) 5699 usage(B_FALSE); 5700 5701 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5702 nomem(); 5703 5704 for (i = 0; i < argc; ++i) { 5705 char *snapshot = argv[i]; 5706 const char *delim; 5707 const char *snapname; 5708 5709 delim = strchr(snapshot, '@'); 5710 if (delim == NULL) { 5711 (void) fprintf(stderr, 5712 gettext("'%s' is not a snapshot\n"), snapshot); 5713 ++errors; 5714 continue; 5715 } 5716 snapname = delim + 1; 5717 if (recursive) 5718 snapshot[delim - snapshot] = '\0'; 5719 5720 cb.cb_recursive = recursive; 5721 cb.cb_snapname = snapname; 5722 cb.cb_nvlp = &nvl; 5723 5724 /* 5725 * 1. collect holds data, set format options 5726 */ 5727 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5728 holds_callback, &cb); 5729 if (ret != 0) 5730 ++errors; 5731 } 5732 5733 /* 5734 * 2. print holds data 5735 */ 5736 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5737 5738 if (nvlist_empty(nvl)) 5739 (void) printf(gettext("no datasets available\n")); 5740 5741 nvlist_free(nvl); 5742 5743 return (0 != errors); 5744} 5745 5746#define CHECK_SPINNER 30 5747#define SPINNER_TIME 3 /* seconds */ 5748#define MOUNT_TIME 5 /* seconds */ 5749 5750static int 5751get_one_dataset(zfs_handle_t *zhp, void *data) 5752{ 5753 static char *spin[] = { "-", "\\", "|", "/" }; 5754 static int spinval = 0; 5755 static int spincheck = 0; 5756 static time_t last_spin_time = (time_t)0; 5757 get_all_cb_t *cbp = data; 5758 zfs_type_t type = zfs_get_type(zhp); 5759 5760 if (cbp->cb_verbose) { 5761 if (--spincheck < 0) { 5762 time_t now = time(NULL); 5763 if (last_spin_time + SPINNER_TIME < now) { 5764 update_progress(spin[spinval++ % 4]); 5765 last_spin_time = now; 5766 } 5767 spincheck = CHECK_SPINNER; 5768 } 5769 } 5770 5771 /* 5772 * Interate over any nested datasets. 5773 */ 5774 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5775 zfs_close(zhp); 5776 return (1); 5777 } 5778 5779 /* 5780 * Skip any datasets whose type does not match. 5781 */ 5782 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5783 zfs_close(zhp); 5784 return (0); 5785 } 5786 libzfs_add_handle(cbp, zhp); 5787 assert(cbp->cb_used <= cbp->cb_alloc); 5788 5789 return (0); 5790} 5791 5792static void 5793get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5794{ 5795 get_all_cb_t cb = { 0 }; 5796 cb.cb_verbose = verbose; 5797 cb.cb_getone = get_one_dataset; 5798 5799 if (verbose) 5800 set_progress_header(gettext("Reading ZFS config")); 5801 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5802 5803 *dslist = cb.cb_handles; 5804 *count = cb.cb_used; 5805 5806 if (verbose) 5807 finish_progress(gettext("done.")); 5808} 5809 5810/* 5811 * Generic callback for sharing or mounting filesystems. Because the code is so 5812 * similar, we have a common function with an extra parameter to determine which 5813 * mode we are using. 5814 */ 5815#define OP_SHARE 0x1 5816#define OP_MOUNT 0x2 5817 5818/* 5819 * Share or mount a dataset. 5820 */ 5821static int 5822share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5823 boolean_t explicit, const char *options) 5824{ 5825 char mountpoint[ZFS_MAXPROPLEN]; 5826 char shareopts[ZFS_MAXPROPLEN]; 5827 char smbshareopts[ZFS_MAXPROPLEN]; 5828 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5829 struct mnttab mnt; 5830 uint64_t zoned, canmount; 5831 boolean_t shared_nfs, shared_smb; 5832 5833 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5834 5835 /* 5836 * Check to make sure we can mount/share this dataset. If we 5837 * are in the global zone and the filesystem is exported to a 5838 * local zone, or if we are in a local zone and the 5839 * filesystem is not exported, then it is an error. 5840 */ 5841 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5842 5843 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5844 if (!explicit) 5845 return (0); 5846 5847 (void) fprintf(stderr, gettext("cannot %s '%s': " 5848 "dataset is exported to a local zone\n"), cmdname, 5849 zfs_get_name(zhp)); 5850 return (1); 5851 5852 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5853 if (!explicit) 5854 return (0); 5855 5856 (void) fprintf(stderr, gettext("cannot %s '%s': " 5857 "permission denied\n"), cmdname, 5858 zfs_get_name(zhp)); 5859 return (1); 5860 } 5861 5862 /* 5863 * Ignore any filesystems which don't apply to us. This 5864 * includes those with a legacy mountpoint, or those with 5865 * legacy share options. 5866 */ 5867 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5868 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5869 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5870 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5871 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5872 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5873 5874 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5875 strcmp(smbshareopts, "off") == 0) { 5876 if (!explicit) 5877 return (0); 5878 5879 (void) fprintf(stderr, gettext("cannot share '%s': " 5880 "legacy share\n"), zfs_get_name(zhp)); 5881 (void) fprintf(stderr, gettext("to " 5882 "share this filesystem set " 5883 "sharenfs property on\n")); 5884 return (1); 5885 } 5886 5887 /* 5888 * We cannot share or mount legacy filesystems. If the 5889 * shareopts is non-legacy but the mountpoint is legacy, we 5890 * treat it as a legacy share. 5891 */ 5892 if (strcmp(mountpoint, "legacy") == 0) { 5893 if (!explicit) 5894 return (0); 5895 5896 (void) fprintf(stderr, gettext("cannot %s '%s': " 5897 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5898 (void) fprintf(stderr, gettext("use %s(8) to " 5899 "%s this filesystem\n"), cmdname, cmdname); 5900 return (1); 5901 } 5902 5903 if (strcmp(mountpoint, "none") == 0) { 5904 if (!explicit) 5905 return (0); 5906 5907 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5908 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5909 return (1); 5910 } 5911 5912 /* 5913 * canmount explicit outcome 5914 * on no pass through 5915 * on yes pass through 5916 * off no return 0 5917 * off yes display error, return 1 5918 * noauto no return 0 5919 * noauto yes pass through 5920 */ 5921 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5922 if (canmount == ZFS_CANMOUNT_OFF) { 5923 if (!explicit) 5924 return (0); 5925 5926 (void) fprintf(stderr, gettext("cannot %s '%s': " 5927 "'canmount' property is set to 'off'\n"), cmdname, 5928 zfs_get_name(zhp)); 5929 return (1); 5930 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5931 return (0); 5932 } 5933 5934 /* 5935 * If this filesystem is inconsistent and has a receive resume 5936 * token, we can not mount it. 5937 */ 5938 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5939 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5940 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5941 if (!explicit) 5942 return (0); 5943 5944 (void) fprintf(stderr, gettext("cannot %s '%s': " 5945 "Contains partially-completed state from " 5946 "\"zfs receive -r\", which can be resumed with " 5947 "\"zfs send -t\"\n"), 5948 cmdname, zfs_get_name(zhp)); 5949 return (1); 5950 } 5951 5952 /* 5953 * At this point, we have verified that the mountpoint and/or 5954 * shareopts are appropriate for auto management. If the 5955 * filesystem is already mounted or shared, return (failing 5956 * for explicit requests); otherwise mount or share the 5957 * filesystem. 5958 */ 5959 switch (op) { 5960 case OP_SHARE: 5961 5962 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5963 shared_smb = zfs_is_shared_smb(zhp, NULL); 5964 5965 if ((shared_nfs && shared_smb) || 5966 (shared_nfs && strcmp(shareopts, "on") == 0 && 5967 strcmp(smbshareopts, "off") == 0) || 5968 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5969 strcmp(shareopts, "off") == 0)) { 5970 if (!explicit) 5971 return (0); 5972 5973 (void) fprintf(stderr, gettext("cannot share " 5974 "'%s': filesystem already shared\n"), 5975 zfs_get_name(zhp)); 5976 return (1); 5977 } 5978 5979 if (!zfs_is_mounted(zhp, NULL) && 5980 zfs_mount(zhp, NULL, 0) != 0) 5981 return (1); 5982 5983 if (protocol == NULL) { 5984 if (zfs_shareall(zhp) != 0) 5985 return (1); 5986 } else if (strcmp(protocol, "nfs") == 0) { 5987 if (zfs_share_nfs(zhp)) 5988 return (1); 5989 } else if (strcmp(protocol, "smb") == 0) { 5990 if (zfs_share_smb(zhp)) 5991 return (1); 5992 } else { 5993 (void) fprintf(stderr, gettext("cannot share " 5994 "'%s': invalid share type '%s' " 5995 "specified\n"), 5996 zfs_get_name(zhp), protocol); 5997 return (1); 5998 } 5999 6000 break; 6001 6002 case OP_MOUNT: 6003 if (options == NULL) 6004 mnt.mnt_mntopts = ""; 6005 else 6006 mnt.mnt_mntopts = (char *)options; 6007 6008 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6009 zfs_is_mounted(zhp, NULL)) { 6010 if (!explicit) 6011 return (0); 6012 6013 (void) fprintf(stderr, gettext("cannot mount " 6014 "'%s': filesystem already mounted\n"), 6015 zfs_get_name(zhp)); 6016 return (1); 6017 } 6018 6019 if (zfs_mount(zhp, options, flags) != 0) 6020 return (1); 6021 break; 6022 } 6023 6024 return (0); 6025} 6026 6027/* 6028 * Reports progress in the form "(current/total)". Not thread-safe. 6029 */ 6030static void 6031report_mount_progress(int current, int total) 6032{ 6033 static time_t last_progress_time = 0; 6034 time_t now = time(NULL); 6035 char info[32]; 6036 6037 /* report 1..n instead of 0..n-1 */ 6038 ++current; 6039 6040 /* display header if we're here for the first time */ 6041 if (current == 1) { 6042 set_progress_header(gettext("Mounting ZFS filesystems")); 6043 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6044 /* too soon to report again */ 6045 return; 6046 } 6047 6048 last_progress_time = now; 6049 6050 (void) sprintf(info, "(%d/%d)", current, total); 6051 6052 if (current == total) 6053 finish_progress(info); 6054 else 6055 update_progress(info); 6056} 6057 6058static void 6059append_options(char *mntopts, char *newopts) 6060{ 6061 int len = strlen(mntopts); 6062 6063 /* original length plus new string to append plus 1 for the comma */ 6064 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6065 (void) fprintf(stderr, gettext("the opts argument for " 6066 "'%c' option is too long (more than %d chars)\n"), 6067 "-o", MNT_LINE_MAX); 6068 usage(B_FALSE); 6069 } 6070 6071 if (*mntopts) 6072 mntopts[len++] = ','; 6073 6074 (void) strcpy(&mntopts[len], newopts); 6075} 6076 6077static int 6078share_mount(int op, int argc, char **argv) 6079{ 6080 int do_all = 0; 6081 boolean_t verbose = B_FALSE; 6082 int c, ret = 0; 6083 char *options = NULL; 6084 int flags = 0; 6085 6086 /* check options */ 6087 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6088 != -1) { 6089 switch (c) { 6090 case 'a': 6091 do_all = 1; 6092 break; 6093 case 'v': 6094 verbose = B_TRUE; 6095 break; 6096 case 'o': 6097 if (*optarg == '\0') { 6098 (void) fprintf(stderr, gettext("empty mount " 6099 "options (-o) specified\n")); 6100 usage(B_FALSE); 6101 } 6102 6103 if (options == NULL) 6104 options = safe_malloc(MNT_LINE_MAX + 1); 6105 6106 /* option validation is done later */ 6107 append_options(options, optarg); 6108 break; 6109 6110 case 'O': 6111 warnx("no overlay mounts support on FreeBSD, ignoring"); 6112 break; 6113 case ':': 6114 (void) fprintf(stderr, gettext("missing argument for " 6115 "'%c' option\n"), optopt); 6116 usage(B_FALSE); 6117 break; 6118 case '?': 6119 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6120 optopt); 6121 usage(B_FALSE); 6122 } 6123 } 6124 6125 argc -= optind; 6126 argv += optind; 6127 6128 /* check number of arguments */ 6129 if (do_all) { 6130 zfs_handle_t **dslist = NULL; 6131 size_t i, count = 0; 6132 char *protocol = NULL; 6133 6134 if (op == OP_SHARE && argc > 0) { 6135 if (strcmp(argv[0], "nfs") != 0 && 6136 strcmp(argv[0], "smb") != 0) { 6137 (void) fprintf(stderr, gettext("share type " 6138 "must be 'nfs' or 'smb'\n")); 6139 usage(B_FALSE); 6140 } 6141 protocol = argv[0]; 6142 argc--; 6143 argv++; 6144 } 6145 6146 if (argc != 0) { 6147 (void) fprintf(stderr, gettext("too many arguments\n")); 6148 usage(B_FALSE); 6149 } 6150 6151 start_progress_timer(); 6152 get_all_datasets(&dslist, &count, verbose); 6153 6154 if (count == 0) 6155 return (0); 6156 6157 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6158 6159 for (i = 0; i < count; i++) { 6160 if (verbose) 6161 report_mount_progress(i, count); 6162 6163 if (share_mount_one(dslist[i], op, flags, protocol, 6164 B_FALSE, options) != 0) 6165 ret = 1; 6166 zfs_close(dslist[i]); 6167 } 6168 6169 free(dslist); 6170 } else if (argc == 0) { 6171 struct mnttab entry; 6172 6173 if ((op == OP_SHARE) || (options != NULL)) { 6174 (void) fprintf(stderr, gettext("missing filesystem " 6175 "argument (specify -a for all)\n")); 6176 usage(B_FALSE); 6177 } 6178 6179 /* 6180 * When mount is given no arguments, go through /etc/mnttab and 6181 * display any active ZFS mounts. We hide any snapshots, since 6182 * they are controlled automatically. 6183 */ 6184 rewind(mnttab_file); 6185 while (getmntent(mnttab_file, &entry) == 0) { 6186 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6187 strchr(entry.mnt_special, '@') != NULL) 6188 continue; 6189 6190 (void) printf("%-30s %s\n", entry.mnt_special, 6191 entry.mnt_mountp); 6192 } 6193 6194 } else { 6195 zfs_handle_t *zhp; 6196 6197 if (argc > 1) { 6198 (void) fprintf(stderr, 6199 gettext("too many arguments\n")); 6200 usage(B_FALSE); 6201 } 6202 6203 if ((zhp = zfs_open(g_zfs, argv[0], 6204 ZFS_TYPE_FILESYSTEM)) == NULL) { 6205 ret = 1; 6206 } else { 6207 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6208 options); 6209 zfs_close(zhp); 6210 } 6211 } 6212 6213 return (ret); 6214} 6215 6216/* 6217 * zfs mount -a [nfs] 6218 * zfs mount filesystem 6219 * 6220 * Mount all filesystems, or mount the given filesystem. 6221 */ 6222static int 6223zfs_do_mount(int argc, char **argv) 6224{ 6225 return (share_mount(OP_MOUNT, argc, argv)); 6226} 6227 6228/* 6229 * zfs share -a [nfs | smb] 6230 * zfs share filesystem 6231 * 6232 * Share all filesystems, or share the given filesystem. 6233 */ 6234static int 6235zfs_do_share(int argc, char **argv) 6236{ 6237 return (share_mount(OP_SHARE, argc, argv)); 6238} 6239 6240typedef struct unshare_unmount_node { 6241 zfs_handle_t *un_zhp; 6242 char *un_mountp; 6243 uu_avl_node_t un_avlnode; 6244} unshare_unmount_node_t; 6245 6246/* ARGSUSED */ 6247static int 6248unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6249{ 6250 const unshare_unmount_node_t *l = larg; 6251 const unshare_unmount_node_t *r = rarg; 6252 6253 return (strcmp(l->un_mountp, r->un_mountp)); 6254} 6255 6256/* 6257 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6258 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6259 * and unmount it appropriately. 6260 */ 6261static int 6262unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6263{ 6264 zfs_handle_t *zhp; 6265 int ret = 0; 6266 struct stat64 statbuf; 6267 struct extmnttab entry; 6268 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6269 ino_t path_inode; 6270 6271 /* 6272 * Search for the path in /etc/mnttab. Rather than looking for the 6273 * specific path, which can be fooled by non-standard paths (i.e. ".." 6274 * or "//"), we stat() the path and search for the corresponding 6275 * (major,minor) device pair. 6276 */ 6277 if (stat64(path, &statbuf) != 0) { 6278 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6279 cmdname, path, strerror(errno)); 6280 return (1); 6281 } 6282 path_inode = statbuf.st_ino; 6283 6284 /* 6285 * Search for the given (major,minor) pair in the mount table. 6286 */ 6287#ifdef illumos 6288 rewind(mnttab_file); 6289 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6290 if (entry.mnt_major == major(statbuf.st_dev) && 6291 entry.mnt_minor == minor(statbuf.st_dev)) 6292 break; 6293 } 6294#else 6295 { 6296 struct statfs sfs; 6297 6298 if (statfs(path, &sfs) != 0) { 6299 (void) fprintf(stderr, "%s: %s\n", path, 6300 strerror(errno)); 6301 ret = -1; 6302 } 6303 statfs2mnttab(&sfs, &entry); 6304 } 6305#endif 6306 if (ret != 0) { 6307 if (op == OP_SHARE) { 6308 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6309 "currently mounted\n"), cmdname, path); 6310 return (1); 6311 } 6312 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6313 path); 6314 if ((ret = umount2(path, flags)) != 0) 6315 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6316 strerror(errno)); 6317 return (ret != 0); 6318 } 6319 6320 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6321 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6322 "filesystem\n"), cmdname, path); 6323 return (1); 6324 } 6325 6326 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6327 ZFS_TYPE_FILESYSTEM)) == NULL) 6328 return (1); 6329 6330 ret = 1; 6331 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6332 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6333 cmdname, path, strerror(errno)); 6334 goto out; 6335 } else if (statbuf.st_ino != path_inode) { 6336 (void) fprintf(stderr, gettext("cannot " 6337 "%s '%s': not a mountpoint\n"), cmdname, path); 6338 goto out; 6339 } 6340 6341 if (op == OP_SHARE) { 6342 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6343 char smbshare_prop[ZFS_MAXPROPLEN]; 6344 6345 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6346 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6347 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6348 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6349 6350 if (strcmp(nfs_mnt_prop, "off") == 0 && 6351 strcmp(smbshare_prop, "off") == 0) { 6352 (void) fprintf(stderr, gettext("cannot unshare " 6353 "'%s': legacy share\n"), path); 6354#ifdef illumos 6355 (void) fprintf(stderr, gettext("use " 6356 "unshare(1M) to unshare this filesystem\n")); 6357#endif 6358 } else if (!zfs_is_shared(zhp)) { 6359 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6360 "not currently shared\n"), path); 6361 } else { 6362 ret = zfs_unshareall_bypath(zhp, path); 6363 } 6364 } else { 6365 char mtpt_prop[ZFS_MAXPROPLEN]; 6366 6367 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6368 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6369 6370 if (is_manual) { 6371 ret = zfs_unmount(zhp, NULL, flags); 6372 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6373 (void) fprintf(stderr, gettext("cannot unmount " 6374 "'%s': legacy mountpoint\n"), 6375 zfs_get_name(zhp)); 6376 (void) fprintf(stderr, gettext("use umount(8) " 6377 "to unmount this filesystem\n")); 6378 } else { 6379 ret = zfs_unmountall(zhp, flags); 6380 } 6381 } 6382 6383out: 6384 zfs_close(zhp); 6385 6386 return (ret != 0); 6387} 6388 6389/* 6390 * Generic callback for unsharing or unmounting a filesystem. 6391 */ 6392static int 6393unshare_unmount(int op, int argc, char **argv) 6394{ 6395 int do_all = 0; 6396 int flags = 0; 6397 int ret = 0; 6398 int c; 6399 zfs_handle_t *zhp; 6400 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6401 char sharesmb[ZFS_MAXPROPLEN]; 6402 6403 /* check options */ 6404 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6405 switch (c) { 6406 case 'a': 6407 do_all = 1; 6408 break; 6409 case 'f': 6410 flags = MS_FORCE; 6411 break; 6412 case '?': 6413 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6414 optopt); 6415 usage(B_FALSE); 6416 } 6417 } 6418 6419 argc -= optind; 6420 argv += optind; 6421 6422 if (do_all) { 6423 /* 6424 * We could make use of zfs_for_each() to walk all datasets in 6425 * the system, but this would be very inefficient, especially 6426 * since we would have to linearly search /etc/mnttab for each 6427 * one. Instead, do one pass through /etc/mnttab looking for 6428 * zfs entries and call zfs_unmount() for each one. 6429 * 6430 * Things get a little tricky if the administrator has created 6431 * mountpoints beneath other ZFS filesystems. In this case, we 6432 * have to unmount the deepest filesystems first. To accomplish 6433 * this, we place all the mountpoints in an AVL tree sorted by 6434 * the special type (dataset name), and walk the result in 6435 * reverse to make sure to get any snapshots first. 6436 */ 6437 struct mnttab entry; 6438 uu_avl_pool_t *pool; 6439 uu_avl_t *tree = NULL; 6440 unshare_unmount_node_t *node; 6441 uu_avl_index_t idx; 6442 uu_avl_walk_t *walk; 6443 6444 if (argc != 0) { 6445 (void) fprintf(stderr, gettext("too many arguments\n")); 6446 usage(B_FALSE); 6447 } 6448 6449 if (((pool = uu_avl_pool_create("unmount_pool", 6450 sizeof (unshare_unmount_node_t), 6451 offsetof(unshare_unmount_node_t, un_avlnode), 6452 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6453 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6454 nomem(); 6455 6456 rewind(mnttab_file); 6457 while (getmntent(mnttab_file, &entry) == 0) { 6458 6459 /* ignore non-ZFS entries */ 6460 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6461 continue; 6462 6463 /* ignore snapshots */ 6464 if (strchr(entry.mnt_special, '@') != NULL) 6465 continue; 6466 6467 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6468 ZFS_TYPE_FILESYSTEM)) == NULL) { 6469 ret = 1; 6470 continue; 6471 } 6472 6473 switch (op) { 6474 case OP_SHARE: 6475 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6476 nfs_mnt_prop, 6477 sizeof (nfs_mnt_prop), 6478 NULL, NULL, 0, B_FALSE) == 0); 6479 if (strcmp(nfs_mnt_prop, "off") != 0) 6480 break; 6481 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6482 nfs_mnt_prop, 6483 sizeof (nfs_mnt_prop), 6484 NULL, NULL, 0, B_FALSE) == 0); 6485 if (strcmp(nfs_mnt_prop, "off") == 0) 6486 continue; 6487 break; 6488 case OP_MOUNT: 6489 /* Ignore legacy mounts */ 6490 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6491 nfs_mnt_prop, 6492 sizeof (nfs_mnt_prop), 6493 NULL, NULL, 0, B_FALSE) == 0); 6494 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6495 continue; 6496 /* Ignore canmount=noauto mounts */ 6497 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6498 ZFS_CANMOUNT_NOAUTO) 6499 continue; 6500 default: 6501 break; 6502 } 6503 6504 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6505 node->un_zhp = zhp; 6506 node->un_mountp = safe_strdup(entry.mnt_mountp); 6507 6508 uu_avl_node_init(node, &node->un_avlnode, pool); 6509 6510 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6511 uu_avl_insert(tree, node, idx); 6512 } else { 6513 zfs_close(node->un_zhp); 6514 free(node->un_mountp); 6515 free(node); 6516 } 6517 } 6518 6519 /* 6520 * Walk the AVL tree in reverse, unmounting each filesystem and 6521 * removing it from the AVL tree in the process. 6522 */ 6523 if ((walk = uu_avl_walk_start(tree, 6524 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6525 nomem(); 6526 6527 while ((node = uu_avl_walk_next(walk)) != NULL) { 6528 uu_avl_remove(tree, node); 6529 6530 switch (op) { 6531 case OP_SHARE: 6532 if (zfs_unshareall_bypath(node->un_zhp, 6533 node->un_mountp) != 0) 6534 ret = 1; 6535 break; 6536 6537 case OP_MOUNT: 6538 if (zfs_unmount(node->un_zhp, 6539 node->un_mountp, flags) != 0) 6540 ret = 1; 6541 break; 6542 } 6543 6544 zfs_close(node->un_zhp); 6545 free(node->un_mountp); 6546 free(node); 6547 } 6548 6549 uu_avl_walk_end(walk); 6550 uu_avl_destroy(tree); 6551 uu_avl_pool_destroy(pool); 6552 6553 } else { 6554 if (argc != 1) { 6555 if (argc == 0) 6556 (void) fprintf(stderr, 6557 gettext("missing filesystem argument\n")); 6558 else 6559 (void) fprintf(stderr, 6560 gettext("too many arguments\n")); 6561 usage(B_FALSE); 6562 } 6563 6564 /* 6565 * We have an argument, but it may be a full path or a ZFS 6566 * filesystem. Pass full paths off to unmount_path() (shared by 6567 * manual_unmount), otherwise open the filesystem and pass to 6568 * zfs_unmount(). 6569 */ 6570 if (argv[0][0] == '/') 6571 return (unshare_unmount_path(op, argv[0], 6572 flags, B_FALSE)); 6573 6574 if ((zhp = zfs_open(g_zfs, argv[0], 6575 ZFS_TYPE_FILESYSTEM)) == NULL) 6576 return (1); 6577 6578 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6579 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6580 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6581 NULL, 0, B_FALSE) == 0); 6582 6583 switch (op) { 6584 case OP_SHARE: 6585 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6586 nfs_mnt_prop, 6587 sizeof (nfs_mnt_prop), 6588 NULL, NULL, 0, B_FALSE) == 0); 6589 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6590 sharesmb, sizeof (sharesmb), NULL, NULL, 6591 0, B_FALSE) == 0); 6592 6593 if (strcmp(nfs_mnt_prop, "off") == 0 && 6594 strcmp(sharesmb, "off") == 0) { 6595 (void) fprintf(stderr, gettext("cannot " 6596 "unshare '%s': legacy share\n"), 6597 zfs_get_name(zhp)); 6598#ifdef illumos 6599 (void) fprintf(stderr, gettext("use " 6600 "unshare(1M) to unshare this " 6601 "filesystem\n")); 6602#endif 6603 ret = 1; 6604 } else if (!zfs_is_shared(zhp)) { 6605 (void) fprintf(stderr, gettext("cannot " 6606 "unshare '%s': not currently " 6607 "shared\n"), zfs_get_name(zhp)); 6608 ret = 1; 6609 } else if (zfs_unshareall(zhp) != 0) { 6610 ret = 1; 6611 } 6612 break; 6613 6614 case OP_MOUNT: 6615 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6616 (void) fprintf(stderr, gettext("cannot " 6617 "unmount '%s': legacy " 6618 "mountpoint\n"), zfs_get_name(zhp)); 6619 (void) fprintf(stderr, gettext("use " 6620 "umount(8) to unmount this " 6621 "filesystem\n")); 6622 ret = 1; 6623 } else if (!zfs_is_mounted(zhp, NULL)) { 6624 (void) fprintf(stderr, gettext("cannot " 6625 "unmount '%s': not currently " 6626 "mounted\n"), 6627 zfs_get_name(zhp)); 6628 ret = 1; 6629 } else if (zfs_unmountall(zhp, flags) != 0) { 6630 ret = 1; 6631 } 6632 break; 6633 } 6634 6635 zfs_close(zhp); 6636 } 6637 6638 return (ret); 6639} 6640 6641/* 6642 * zfs unmount -a 6643 * zfs unmount filesystem 6644 * 6645 * Unmount all filesystems, or a specific ZFS filesystem. 6646 */ 6647static int 6648zfs_do_unmount(int argc, char **argv) 6649{ 6650 return (unshare_unmount(OP_MOUNT, argc, argv)); 6651} 6652 6653/* 6654 * zfs unshare -a 6655 * zfs unshare filesystem 6656 * 6657 * Unshare all filesystems, or a specific ZFS filesystem. 6658 */ 6659static int 6660zfs_do_unshare(int argc, char **argv) 6661{ 6662 return (unshare_unmount(OP_SHARE, argc, argv)); 6663} 6664 6665/* 6666 * Attach/detach the given dataset to/from the given jail 6667 */ 6668/* ARGSUSED */ 6669static int 6670do_jail(int argc, char **argv, int attach) 6671{ 6672 zfs_handle_t *zhp; 6673 int jailid, ret; 6674 6675 /* check number of arguments */ 6676 if (argc < 3) { 6677 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6678 usage(B_FALSE); 6679 } 6680 if (argc > 3) { 6681 (void) fprintf(stderr, gettext("too many arguments\n")); 6682 usage(B_FALSE); 6683 } 6684 6685 jailid = jail_getid(argv[1]); 6686 if (jailid < 0) { 6687 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 6688 usage(B_FALSE); 6689 } 6690 6691 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6692 if (zhp == NULL) 6693 return (1); 6694 6695 ret = (zfs_jail(zhp, jailid, attach) != 0); 6696 6697 zfs_close(zhp); 6698 return (ret); 6699} 6700 6701/* 6702 * zfs jail jailid filesystem 6703 * 6704 * Attach the given dataset to the given jail 6705 */ 6706/* ARGSUSED */ 6707static int 6708zfs_do_jail(int argc, char **argv) 6709{ 6710 6711 return (do_jail(argc, argv, 1)); 6712} 6713 6714/* 6715 * zfs unjail jailid filesystem 6716 * 6717 * Detach the given dataset from the given jail 6718 */ 6719/* ARGSUSED */ 6720static int 6721zfs_do_unjail(int argc, char **argv) 6722{ 6723 6724 return (do_jail(argc, argv, 0)); 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 */ 6731static int 6732manual_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 (zmount(dataset, path, 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 -t 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 -t zfs' " 6810 "or /etc/fstab, use 'zfs set mountpoint=legacy'.\n")); 6811 (void) fprintf(stderr, gettext("See zfs(8) 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 */ 6824static int 6825manual_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 6862static int 6863find_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 6879static int 6880zfs_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/* 6955 * zfs bookmark <fs@snap> <fs#bmark> 6956 * 6957 * Creates a bookmark with the given name from the given snapshot. 6958 */ 6959static int 6960zfs_do_bookmark(int argc, char **argv) 6961{ 6962 char snapname[ZFS_MAXNAMELEN]; 6963 zfs_handle_t *zhp; 6964 nvlist_t *nvl; 6965 int ret = 0; 6966 int c; 6967 6968 /* check options */ 6969 while ((c = getopt(argc, argv, "")) != -1) { 6970 switch (c) { 6971 case '?': 6972 (void) fprintf(stderr, 6973 gettext("invalid option '%c'\n"), optopt); 6974 goto usage; 6975 } 6976 } 6977 6978 argc -= optind; 6979 argv += optind; 6980 6981 /* check number of arguments */ 6982 if (argc < 1) { 6983 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6984 goto usage; 6985 } 6986 if (argc < 2) { 6987 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6988 goto usage; 6989 } 6990 6991 if (strchr(argv[1], '#') == NULL) { 6992 (void) fprintf(stderr, 6993 gettext("invalid bookmark name '%s' -- " 6994 "must contain a '#'\n"), argv[1]); 6995 goto usage; 6996 } 6997 6998 if (argv[0][0] == '@') { 6999 /* 7000 * Snapshot name begins with @. 7001 * Default to same fs as bookmark. 7002 */ 7003 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7004 *strchr(snapname, '#') = '\0'; 7005 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7006 } else { 7007 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7008 } 7009 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7010 if (zhp == NULL) 7011 goto usage; 7012 zfs_close(zhp); 7013 7014 7015 nvl = fnvlist_alloc(); 7016 fnvlist_add_string(nvl, argv[1], snapname); 7017 ret = lzc_bookmark(nvl, NULL); 7018 fnvlist_free(nvl); 7019 7020 if (ret != 0) { 7021 const char *err_msg; 7022 char errbuf[1024]; 7023 7024 (void) snprintf(errbuf, sizeof (errbuf), 7025 dgettext(TEXT_DOMAIN, 7026 "cannot create bookmark '%s'"), argv[1]); 7027 7028 switch (ret) { 7029 case EXDEV: 7030 err_msg = "bookmark is in a different pool"; 7031 break; 7032 case EEXIST: 7033 err_msg = "bookmark exists"; 7034 break; 7035 case EINVAL: 7036 err_msg = "invalid argument"; 7037 break; 7038 case ENOTSUP: 7039 err_msg = "bookmark feature not enabled"; 7040 break; 7041 case ENOSPC: 7042 err_msg = "out of space"; 7043 break; 7044 default: 7045 err_msg = "unknown error"; 7046 break; 7047 } 7048 (void) fprintf(stderr, "%s: %s\n", errbuf, 7049 dgettext(TEXT_DOMAIN, err_msg)); 7050 } 7051 7052 return (ret != 0); 7053 7054usage: 7055 usage(B_FALSE); 7056 return (-1); 7057} 7058 7059int 7060main(int argc, char **argv) 7061{ 7062 int ret = 0; 7063 int i; 7064 char *progname; 7065 char *cmdname; 7066 7067 (void) setlocale(LC_ALL, ""); 7068 (void) textdomain(TEXT_DOMAIN); 7069 7070 opterr = 0; 7071 7072 if ((g_zfs = libzfs_init()) == NULL) { 7073 (void) fprintf(stderr, gettext("internal error: failed to " 7074 "initialize ZFS library\n")); 7075 return (1); 7076 } 7077 7078 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7079 7080 libzfs_print_on_error(g_zfs, B_TRUE); 7081 7082 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7083 (void) fprintf(stderr, gettext("internal error: unable to " 7084 "open %s\n"), MNTTAB); 7085 return (1); 7086 } 7087 7088 /* 7089 * This command also doubles as the /etc/fs mount and unmount program. 7090 * Determine if we should take this behavior based on argv[0]. 7091 */ 7092 progname = basename(argv[0]); 7093 if (strcmp(progname, "mount") == 0) { 7094 ret = manual_mount(argc, argv); 7095 } else if (strcmp(progname, "umount") == 0) { 7096 ret = manual_unmount(argc, argv); 7097 } else { 7098 /* 7099 * Make sure the user has specified some command. 7100 */ 7101 if (argc < 2) { 7102 (void) fprintf(stderr, gettext("missing command\n")); 7103 usage(B_FALSE); 7104 } 7105 7106 cmdname = argv[1]; 7107 7108 /* 7109 * The 'umount' command is an alias for 'unmount' 7110 */ 7111 if (strcmp(cmdname, "umount") == 0) 7112 cmdname = "unmount"; 7113 7114 /* 7115 * The 'recv' command is an alias for 'receive' 7116 */ 7117 if (strcmp(cmdname, "recv") == 0) 7118 cmdname = "receive"; 7119 7120 /* 7121 * The 'snap' command is an alias for 'snapshot' 7122 */ 7123 if (strcmp(cmdname, "snap") == 0) 7124 cmdname = "snapshot"; 7125 7126 /* 7127 * Special case '-?' 7128 */ 7129 if (strcmp(cmdname, "-?") == 0) 7130 usage(B_TRUE); 7131 7132 /* 7133 * Run the appropriate command. 7134 */ 7135 libzfs_mnttab_cache(g_zfs, B_TRUE); 7136 if (find_command_idx(cmdname, &i) == 0) { 7137 current_command = &command_table[i]; 7138 ret = command_table[i].func(argc - 1, argv + 1); 7139 } else if (strchr(cmdname, '=') != NULL) { 7140 verify(find_command_idx("set", &i) == 0); 7141 current_command = &command_table[i]; 7142 ret = command_table[i].func(argc, argv); 7143 } else { 7144 (void) fprintf(stderr, gettext("unrecognized " 7145 "command '%s'\n"), cmdname); 7146 usage(B_FALSE); 7147 } 7148 libzfs_mnttab_cache(g_zfs, B_FALSE); 7149 } 7150 7151 (void) fclose(mnttab_file); 7152 7153 if (ret == 0 && log_history) 7154 (void) zpool_log_history(g_zfs, history_str); 7155 7156 libzfs_fini(g_zfs); 7157 7158 /* 7159 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7160 * for the purposes of running ::findleaks. 7161 */ 7162 if (getenv("ZFS_ABORT") != NULL) { 7163 (void) printf("dumping core by request\n"); 7164 abort(); 7165 } 7166 7167 return (ret); 7168} 7169