zfs_main.c revision 230449
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 2012 Nexenta Systems, Inc. All rights reserved. 25 * Copyright (c) 2011 by Delphix. All rights reserved. 26 * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 27 * All rights reserved. 28 * Copyright (c) 2011 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 29 */ 30 31#include <assert.h> 32#include <ctype.h> 33#include <errno.h> 34#include <libgen.h> 35#include <libintl.h> 36#include <libuutil.h> 37#include <libnvpair.h> 38#include <locale.h> 39#include <stddef.h> 40#include <stdio.h> 41#include <stdlib.h> 42#include <strings.h> 43#include <unistd.h> 44#include <fcntl.h> 45#include <zone.h> 46#include <grp.h> 47#include <pwd.h> 48#include <signal.h> 49#include <sys/list.h> 50#include <sys/mntent.h> 51#include <sys/mnttab.h> 52#include <sys/mount.h> 53#include <sys/stat.h> 54#include <sys/fs/zfs.h> 55#include <sys/types.h> 56#include <time.h> 57 58#include <libzfs.h> 59#include <zfs_prop.h> 60#include <zfs_deleg.h> 61#include <libuutil.h> 62#ifdef sun 63#include <aclutils.h> 64#include <directory.h> 65#endif 66 67#include "zfs_iter.h" 68#include "zfs_util.h" 69#include "zfs_comutil.h" 70 71libzfs_handle_t *g_zfs; 72 73static FILE *mnttab_file; 74static char history_str[HIS_MAX_RECORD_LEN]; 75 76static int zfs_do_clone(int argc, char **argv); 77static int zfs_do_create(int argc, char **argv); 78static int zfs_do_destroy(int argc, char **argv); 79static int zfs_do_get(int argc, char **argv); 80static int zfs_do_inherit(int argc, char **argv); 81static int zfs_do_list(int argc, char **argv); 82static int zfs_do_mount(int argc, char **argv); 83static int zfs_do_rename(int argc, char **argv); 84static int zfs_do_rollback(int argc, char **argv); 85static int zfs_do_set(int argc, char **argv); 86static int zfs_do_upgrade(int argc, char **argv); 87static int zfs_do_snapshot(int argc, char **argv); 88static int zfs_do_unmount(int argc, char **argv); 89static int zfs_do_share(int argc, char **argv); 90static int zfs_do_unshare(int argc, char **argv); 91static int zfs_do_send(int argc, char **argv); 92static int zfs_do_receive(int argc, char **argv); 93static int zfs_do_promote(int argc, char **argv); 94static int zfs_do_userspace(int argc, char **argv); 95static int zfs_do_allow(int argc, char **argv); 96static int zfs_do_unallow(int argc, char **argv); 97static int zfs_do_hold(int argc, char **argv); 98static int zfs_do_holds(int argc, char **argv); 99static int zfs_do_release(int argc, char **argv); 100static int zfs_do_diff(int argc, char **argv); 101static int zfs_do_jail(int argc, char **argv); 102static int zfs_do_unjail(int argc, char **argv); 103 104/* 105 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 106 */ 107 108#ifdef DEBUG 109const char * 110_umem_debug_init(void) 111{ 112 return ("default,verbose"); /* $UMEM_DEBUG setting */ 113} 114 115const char * 116_umem_logging_init(void) 117{ 118 return ("fail,contents"); /* $UMEM_LOGGING setting */ 119} 120#endif 121 122typedef enum { 123 HELP_CLONE, 124 HELP_CREATE, 125 HELP_DESTROY, 126 HELP_GET, 127 HELP_INHERIT, 128 HELP_UPGRADE, 129 HELP_JAIL, 130 HELP_UNJAIL, 131 HELP_LIST, 132 HELP_MOUNT, 133 HELP_PROMOTE, 134 HELP_RECEIVE, 135 HELP_RENAME, 136 HELP_ROLLBACK, 137 HELP_SEND, 138 HELP_SET, 139 HELP_SHARE, 140 HELP_SNAPSHOT, 141 HELP_UNMOUNT, 142 HELP_UNSHARE, 143 HELP_ALLOW, 144 HELP_UNALLOW, 145 HELP_USERSPACE, 146 HELP_GROUPSPACE, 147 HELP_HOLD, 148 HELP_HOLDS, 149 HELP_RELEASE, 150 HELP_DIFF, 151} zfs_help_t; 152 153typedef struct zfs_command { 154 const char *name; 155 int (*func)(int argc, char **argv); 156 zfs_help_t usage; 157} zfs_command_t; 158 159/* 160 * Master command table. Each ZFS command has a name, associated function, and 161 * usage message. The usage messages need to be internationalized, so we have 162 * to have a function to return the usage message based on a command index. 163 * 164 * These commands are organized according to how they are displayed in the usage 165 * message. An empty command (one with a NULL name) indicates an empty line in 166 * the generic usage message. 167 */ 168static zfs_command_t command_table[] = { 169 { "create", zfs_do_create, HELP_CREATE }, 170 { "destroy", zfs_do_destroy, HELP_DESTROY }, 171 { NULL }, 172 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 173 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 174 { "clone", zfs_do_clone, HELP_CLONE }, 175 { "promote", zfs_do_promote, HELP_PROMOTE }, 176 { "rename", zfs_do_rename, HELP_RENAME }, 177 { NULL }, 178 { "list", zfs_do_list, HELP_LIST }, 179 { NULL }, 180 { "set", zfs_do_set, HELP_SET }, 181 { "get", zfs_do_get, HELP_GET }, 182 { "inherit", zfs_do_inherit, HELP_INHERIT }, 183 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 184 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 185 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 186 { NULL }, 187 { "mount", zfs_do_mount, HELP_MOUNT }, 188 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 189 { "share", zfs_do_share, HELP_SHARE }, 190 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 191 { NULL }, 192 { "send", zfs_do_send, HELP_SEND }, 193 { "receive", zfs_do_receive, HELP_RECEIVE }, 194 { NULL }, 195 { "allow", zfs_do_allow, HELP_ALLOW }, 196 { NULL }, 197 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 198 { NULL }, 199 { "hold", zfs_do_hold, HELP_HOLD }, 200 { "holds", zfs_do_holds, HELP_HOLDS }, 201 { "release", zfs_do_release, HELP_RELEASE }, 202 { "diff", zfs_do_diff, HELP_DIFF }, 203 { NULL }, 204 { "jail", zfs_do_jail, HELP_JAIL }, 205 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 206}; 207 208#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 209 210zfs_command_t *current_command; 211 212static const char * 213get_usage(zfs_help_t idx) 214{ 215 switch (idx) { 216 case HELP_CLONE: 217 return (gettext("\tclone [-p] [-o property=value] ... " 218 "<snapshot> <filesystem|volume>\n")); 219 case HELP_CREATE: 220 return (gettext("\tcreate [-p] [-o property=value] ... " 221 "<filesystem>\n" 222 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 223 "-V <size> <volume>\n")); 224 case HELP_DESTROY: 225 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 226 "\tdestroy [-dnpRrv] " 227 "<snapshot>[%<snapname>][,...]\n")); 228 case HELP_GET: 229 return (gettext("\tget [-rHp] [-d max] " 230 "[-o \"all\" | field[,...]] [-s source[,...]]\n" 231 "\t <\"all\" | property[,...]> " 232 "[filesystem|volume|snapshot] ...\n")); 233 case HELP_INHERIT: 234 return (gettext("\tinherit [-rS] <property> " 235 "<filesystem|volume|snapshot> ...\n")); 236 case HELP_UPGRADE: 237 return (gettext("\tupgrade [-v]\n" 238 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 239 case HELP_JAIL: 240 return (gettext("\tjail <jailid> <filesystem>\n")); 241 case HELP_UNJAIL: 242 return (gettext("\tunjail <jailid> <filesystem>\n")); 243 case HELP_LIST: 244 return (gettext("\tlist [-rH][-d max] " 245 "[-o property[,...]] [-t type[,...]] [-s property] ...\n" 246 "\t [-S property] ... " 247 "[filesystem|volume|snapshot] ...\n")); 248 case HELP_MOUNT: 249 return (gettext("\tmount\n" 250 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 251 case HELP_PROMOTE: 252 return (gettext("\tpromote <clone-filesystem>\n")); 253 case HELP_RECEIVE: 254 return (gettext("\treceive [-vnFu] <filesystem|volume|" 255 "snapshot>\n" 256 "\treceive [-vnFu] [-d | -e] <filesystem>\n")); 257 case HELP_RENAME: 258 return (gettext("\trename <filesystem|volume|snapshot> " 259 "<filesystem|volume|snapshot>\n" 260 "\trename -p <filesystem|volume> <filesystem|volume>\n" 261 "\trename -r <snapshot> <snapshot>\n" 262 "\trename -u [-p] <filesystem> <filesystem>")); 263 case HELP_ROLLBACK: 264 return (gettext("\trollback [-rRf] <snapshot>\n")); 265 case HELP_SEND: 266 return (gettext("\tsend [-DnPpRrv] " 267 "[-i snapshot | -I snapshot] <snapshot>\n")); 268 case HELP_SET: 269 return (gettext("\tset <property=value> " 270 "<filesystem|volume|snapshot> ...\n")); 271 case HELP_SHARE: 272 return (gettext("\tshare <-a | filesystem>\n")); 273 case HELP_SNAPSHOT: 274 return (gettext("\tsnapshot [-r] [-o property=value] ... " 275 "<filesystem@snapname|volume@snapname>\n")); 276 case HELP_UNMOUNT: 277 return (gettext("\tunmount [-f] " 278 "<-a | filesystem|mountpoint>\n")); 279 case HELP_UNSHARE: 280 return (gettext("\tunshare " 281 "<-a | filesystem|mountpoint>\n")); 282 case HELP_ALLOW: 283 return (gettext("\tallow <filesystem|volume>\n" 284 "\tallow [-ldug] " 285 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 286 "\t <filesystem|volume>\n" 287 "\tallow [-ld] -e <perm|@setname>[,...] " 288 "<filesystem|volume>\n" 289 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 290 "\tallow -s @setname <perm|@setname>[,...] " 291 "<filesystem|volume>\n")); 292 case HELP_UNALLOW: 293 return (gettext("\tunallow [-rldug] " 294 "<\"everyone\"|user|group>[,...]\n" 295 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 296 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 297 "<filesystem|volume>\n" 298 "\tunallow [-r] -c [<perm|@setname>[,...]] " 299 "<filesystem|volume>\n" 300 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 301 "<filesystem|volume>\n")); 302 case HELP_USERSPACE: 303 return (gettext("\tuserspace [-niHp] [-o field[,...]] " 304 "[-sS field] ... [-t type[,...]]\n" 305 "\t <filesystem|snapshot>\n")); 306 case HELP_GROUPSPACE: 307 return (gettext("\tgroupspace [-niHp] [-o field[,...]] " 308 "[-sS field] ... [-t type[,...]]\n" 309 "\t <filesystem|snapshot>\n")); 310 case HELP_HOLD: 311 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 312 case HELP_HOLDS: 313 return (gettext("\tholds [-r] <snapshot> ...\n")); 314 case HELP_RELEASE: 315 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 316 case HELP_DIFF: 317 return (gettext("\tdiff [-FHt] <snapshot> " 318 "[snapshot|filesystem]\n")); 319 } 320 321 abort(); 322 /* NOTREACHED */ 323} 324 325void 326nomem(void) 327{ 328 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 329 exit(1); 330} 331 332/* 333 * Utility function to guarantee malloc() success. 334 */ 335 336void * 337safe_malloc(size_t size) 338{ 339 void *data; 340 341 if ((data = calloc(1, size)) == NULL) 342 nomem(); 343 344 return (data); 345} 346 347static char * 348safe_strdup(char *str) 349{ 350 char *dupstr = strdup(str); 351 352 if (dupstr == NULL) 353 nomem(); 354 355 return (dupstr); 356} 357 358/* 359 * Callback routine that will print out information for each of 360 * the properties. 361 */ 362static int 363usage_prop_cb(int prop, void *cb) 364{ 365 FILE *fp = cb; 366 367 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 368 369 if (zfs_prop_readonly(prop)) 370 (void) fprintf(fp, " NO "); 371 else 372 (void) fprintf(fp, "YES "); 373 374 if (zfs_prop_inheritable(prop)) 375 (void) fprintf(fp, " YES "); 376 else 377 (void) fprintf(fp, " NO "); 378 379 if (zfs_prop_values(prop) == NULL) 380 (void) fprintf(fp, "-\n"); 381 else 382 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 383 384 return (ZPROP_CONT); 385} 386 387/* 388 * Display usage message. If we're inside a command, display only the usage for 389 * that command. Otherwise, iterate over the entire command table and display 390 * a complete usage message. 391 */ 392static void 393usage(boolean_t requested) 394{ 395 int i; 396 boolean_t show_properties = B_FALSE; 397 FILE *fp = requested ? stdout : stderr; 398 399 if (current_command == NULL) { 400 401 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 402 (void) fprintf(fp, 403 gettext("where 'command' is one of the following:\n\n")); 404 405 for (i = 0; i < NCOMMAND; i++) { 406 if (command_table[i].name == NULL) 407 (void) fprintf(fp, "\n"); 408 else 409 (void) fprintf(fp, "%s", 410 get_usage(command_table[i].usage)); 411 } 412 413 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 414 "pool/[dataset/]*dataset[@name]\n")); 415 } else { 416 (void) fprintf(fp, gettext("usage:\n")); 417 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 418 } 419 420 if (current_command != NULL && 421 (strcmp(current_command->name, "set") == 0 || 422 strcmp(current_command->name, "get") == 0 || 423 strcmp(current_command->name, "inherit") == 0 || 424 strcmp(current_command->name, "list") == 0)) 425 show_properties = B_TRUE; 426 427 if (show_properties) { 428 (void) fprintf(fp, 429 gettext("\nThe following properties are supported:\n")); 430 431 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 432 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 433 434 /* Iterate over all properties */ 435 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 436 ZFS_TYPE_DATASET); 437 438 (void) fprintf(fp, "\t%-15s ", "userused@..."); 439 (void) fprintf(fp, " NO NO <size>\n"); 440 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 441 (void) fprintf(fp, " NO NO <size>\n"); 442 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 443 (void) fprintf(fp, "YES NO <size> | none\n"); 444 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 445 (void) fprintf(fp, "YES NO <size> | none\n"); 446 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 447 (void) fprintf(fp, " NO NO <size>\n"); 448 449 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 450 "with standard units such as K, M, G, etc.\n")); 451 (void) fprintf(fp, gettext("\nUser-defined properties can " 452 "be specified by using a name containing a colon (:).\n")); 453 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 454 "properties must be appended with\n" 455 "a user or group specifier of one of these forms:\n" 456 " POSIX name (eg: \"matt\")\n" 457 " POSIX id (eg: \"126829\")\n" 458 " SMB name@domain (eg: \"matt@sun\")\n" 459 " SMB SID (eg: \"S-1-234-567-89\")\n")); 460 } else { 461 (void) fprintf(fp, 462 gettext("\nFor the property list, run: %s\n"), 463 "zfs set|get"); 464 (void) fprintf(fp, 465 gettext("\nFor the delegated permission list, run: %s\n"), 466 "zfs allow|unallow"); 467 } 468 469 /* 470 * See comments at end of main(). 471 */ 472 if (getenv("ZFS_ABORT") != NULL) { 473 (void) printf("dumping core by request\n"); 474 abort(); 475 } 476 477 exit(requested ? 0 : 2); 478} 479 480static int 481parseprop(nvlist_t *props) 482{ 483 char *propname = optarg; 484 char *propval, *strval; 485 486 if ((propval = strchr(propname, '=')) == NULL) { 487 (void) fprintf(stderr, gettext("missing " 488 "'=' for -o option\n")); 489 return (-1); 490 } 491 *propval = '\0'; 492 propval++; 493 if (nvlist_lookup_string(props, propname, &strval) == 0) { 494 (void) fprintf(stderr, gettext("property '%s' " 495 "specified multiple times\n"), propname); 496 return (-1); 497 } 498 if (nvlist_add_string(props, propname, propval) != 0) 499 nomem(); 500 return (0); 501} 502 503static int 504parse_depth(char *opt, int *flags) 505{ 506 char *tmp; 507 int depth; 508 509 depth = (int)strtol(opt, &tmp, 0); 510 if (*tmp) { 511 (void) fprintf(stderr, 512 gettext("%s is not an integer\n"), optarg); 513 usage(B_FALSE); 514 } 515 if (depth < 0) { 516 (void) fprintf(stderr, 517 gettext("Depth can not be negative.\n")); 518 usage(B_FALSE); 519 } 520 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 521 return (depth); 522} 523 524#define PROGRESS_DELAY 2 /* seconds */ 525 526static 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"; 527static time_t pt_begin; 528static char *pt_header = NULL; 529static boolean_t pt_shown; 530 531static void 532start_progress_timer(void) 533{ 534 pt_begin = time(NULL) + PROGRESS_DELAY; 535 pt_shown = B_FALSE; 536} 537 538static void 539set_progress_header(char *header) 540{ 541 assert(pt_header == NULL); 542 pt_header = safe_strdup(header); 543 if (pt_shown) { 544 (void) printf("%s: ", header); 545 (void) fflush(stdout); 546 } 547} 548 549static void 550update_progress(char *update) 551{ 552 if (!pt_shown && time(NULL) > pt_begin) { 553 int len = strlen(update); 554 555 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 556 pt_reverse); 557 (void) fflush(stdout); 558 pt_shown = B_TRUE; 559 } else if (pt_shown) { 560 int len = strlen(update); 561 562 (void) printf("%s%*.*s", update, len, len, pt_reverse); 563 (void) fflush(stdout); 564 } 565} 566 567static void 568finish_progress(char *done) 569{ 570 if (pt_shown) { 571 (void) printf("%s\n", done); 572 (void) fflush(stdout); 573 } 574 free(pt_header); 575 pt_header = NULL; 576} 577/* 578 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 579 * 580 * Given an existing dataset, create a writable copy whose initial contents 581 * are the same as the source. The newly created dataset maintains a 582 * dependency on the original; the original cannot be destroyed so long as 583 * the clone exists. 584 * 585 * The '-p' flag creates all the non-existing ancestors of the target first. 586 */ 587static int 588zfs_do_clone(int argc, char **argv) 589{ 590 zfs_handle_t *zhp = NULL; 591 boolean_t parents = B_FALSE; 592 nvlist_t *props; 593 int ret; 594 int c; 595 596 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 597 nomem(); 598 599 /* check options */ 600 while ((c = getopt(argc, argv, "o:p")) != -1) { 601 switch (c) { 602 case 'o': 603 if (parseprop(props)) 604 return (1); 605 break; 606 case 'p': 607 parents = B_TRUE; 608 break; 609 case '?': 610 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 611 optopt); 612 goto usage; 613 } 614 } 615 616 argc -= optind; 617 argv += optind; 618 619 /* check number of arguments */ 620 if (argc < 1) { 621 (void) fprintf(stderr, gettext("missing source dataset " 622 "argument\n")); 623 goto usage; 624 } 625 if (argc < 2) { 626 (void) fprintf(stderr, gettext("missing target dataset " 627 "argument\n")); 628 goto usage; 629 } 630 if (argc > 2) { 631 (void) fprintf(stderr, gettext("too many arguments\n")); 632 goto usage; 633 } 634 635 /* open the source dataset */ 636 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 637 return (1); 638 639 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 640 ZFS_TYPE_VOLUME)) { 641 /* 642 * Now create the ancestors of the target dataset. If the 643 * target already exists and '-p' option was used we should not 644 * complain. 645 */ 646 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 647 ZFS_TYPE_VOLUME)) 648 return (0); 649 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 650 return (1); 651 } 652 653 /* pass to libzfs */ 654 ret = zfs_clone(zhp, argv[1], props); 655 656 /* create the mountpoint if necessary */ 657 if (ret == 0) { 658 zfs_handle_t *clone; 659 660 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 661 if (clone != NULL) { 662 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 663 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 664 ret = zfs_share(clone); 665 zfs_close(clone); 666 } 667 } 668 669 zfs_close(zhp); 670 nvlist_free(props); 671 672 return (!!ret); 673 674usage: 675 if (zhp) 676 zfs_close(zhp); 677 nvlist_free(props); 678 usage(B_FALSE); 679 return (-1); 680} 681 682/* 683 * zfs create [-p] [-o prop=value] ... fs 684 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 685 * 686 * Create a new dataset. This command can be used to create filesystems 687 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 688 * For volumes, the user must specify a size to be used. 689 * 690 * The '-s' flag applies only to volumes, and indicates that we should not try 691 * to set the reservation for this volume. By default we set a reservation 692 * equal to the size for any volume. For pools with SPA_VERSION >= 693 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 694 * 695 * The '-p' flag creates all the non-existing ancestors of the target first. 696 */ 697static int 698zfs_do_create(int argc, char **argv) 699{ 700 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 701 zfs_handle_t *zhp = NULL; 702 uint64_t volsize; 703 int c; 704 boolean_t noreserve = B_FALSE; 705 boolean_t bflag = B_FALSE; 706 boolean_t parents = B_FALSE; 707 int ret = 1; 708 nvlist_t *props; 709 uint64_t intval; 710 int canmount = ZFS_CANMOUNT_OFF; 711 712 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 713 nomem(); 714 715 /* check options */ 716 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 717 switch (c) { 718 case 'V': 719 type = ZFS_TYPE_VOLUME; 720 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 721 (void) fprintf(stderr, gettext("bad volume " 722 "size '%s': %s\n"), optarg, 723 libzfs_error_description(g_zfs)); 724 goto error; 725 } 726 727 if (nvlist_add_uint64(props, 728 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 729 nomem(); 730 volsize = intval; 731 break; 732 case 'p': 733 parents = B_TRUE; 734 break; 735 case 'b': 736 bflag = B_TRUE; 737 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 738 (void) fprintf(stderr, gettext("bad volume " 739 "block size '%s': %s\n"), optarg, 740 libzfs_error_description(g_zfs)); 741 goto error; 742 } 743 744 if (nvlist_add_uint64(props, 745 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 746 intval) != 0) 747 nomem(); 748 break; 749 case 'o': 750 if (parseprop(props)) 751 goto error; 752 break; 753 case 's': 754 noreserve = B_TRUE; 755 break; 756 case ':': 757 (void) fprintf(stderr, gettext("missing size " 758 "argument\n")); 759 goto badusage; 760 break; 761 case '?': 762 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 763 optopt); 764 goto badusage; 765 } 766 } 767 768 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 769 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 770 "used when creating a volume\n")); 771 goto badusage; 772 } 773 774 argc -= optind; 775 argv += optind; 776 777 /* check number of arguments */ 778 if (argc == 0) { 779 (void) fprintf(stderr, gettext("missing %s argument\n"), 780 zfs_type_to_name(type)); 781 goto badusage; 782 } 783 if (argc > 1) { 784 (void) fprintf(stderr, gettext("too many arguments\n")); 785 goto badusage; 786 } 787 788 if (type == ZFS_TYPE_VOLUME && !noreserve) { 789 zpool_handle_t *zpool_handle; 790 uint64_t spa_version; 791 char *p; 792 zfs_prop_t resv_prop; 793 char *strval; 794 795 if (p = strchr(argv[0], '/')) 796 *p = '\0'; 797 zpool_handle = zpool_open(g_zfs, argv[0]); 798 if (p != NULL) 799 *p = '/'; 800 if (zpool_handle == NULL) 801 goto error; 802 spa_version = zpool_get_prop_int(zpool_handle, 803 ZPOOL_PROP_VERSION, NULL); 804 zpool_close(zpool_handle); 805 if (spa_version >= SPA_VERSION_REFRESERVATION) 806 resv_prop = ZFS_PROP_REFRESERVATION; 807 else 808 resv_prop = ZFS_PROP_RESERVATION; 809 volsize = zvol_volsize_to_reservation(volsize, props); 810 811 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 812 &strval) != 0) { 813 if (nvlist_add_uint64(props, 814 zfs_prop_to_name(resv_prop), volsize) != 0) { 815 nvlist_free(props); 816 nomem(); 817 } 818 } 819 } 820 821 if (parents && zfs_name_valid(argv[0], type)) { 822 /* 823 * Now create the ancestors of target dataset. If the target 824 * already exists and '-p' option was used we should not 825 * complain. 826 */ 827 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 828 ret = 0; 829 goto error; 830 } 831 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 832 goto error; 833 } 834 835 /* pass to libzfs */ 836 if (zfs_create(g_zfs, argv[0], type, props) != 0) 837 goto error; 838 839 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 840 goto error; 841 842 ret = 0; 843 /* 844 * if the user doesn't want the dataset automatically mounted, 845 * then skip the mount/share step 846 */ 847 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 848 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 849 850 /* 851 * Mount and/or share the new filesystem as appropriate. We provide a 852 * verbose error message to let the user know that their filesystem was 853 * in fact created, even if we failed to mount or share it. 854 */ 855 if (canmount == ZFS_CANMOUNT_ON) { 856 if (zfs_mount(zhp, NULL, 0) != 0) { 857 (void) fprintf(stderr, gettext("filesystem " 858 "successfully created, but not mounted\n")); 859 ret = 1; 860 } else if (zfs_share(zhp) != 0) { 861 (void) fprintf(stderr, gettext("filesystem " 862 "successfully created, but not shared\n")); 863 ret = 1; 864 } 865 } 866 867error: 868 if (zhp) 869 zfs_close(zhp); 870 nvlist_free(props); 871 return (ret); 872badusage: 873 nvlist_free(props); 874 usage(B_FALSE); 875 return (2); 876} 877 878/* 879 * zfs destroy [-rRf] <fs, vol> 880 * zfs destroy [-rRd] <snap> 881 * 882 * -r Recursively destroy all children 883 * -R Recursively destroy all dependents, including clones 884 * -f Force unmounting of any dependents 885 * -d If we can't destroy now, mark for deferred destruction 886 * 887 * Destroys the given dataset. By default, it will unmount any filesystems, 888 * and refuse to destroy a dataset that has any dependents. A dependent can 889 * either be a child, or a clone of a child. 890 */ 891typedef struct destroy_cbdata { 892 boolean_t cb_first; 893 boolean_t cb_force; 894 boolean_t cb_recurse; 895 boolean_t cb_error; 896 boolean_t cb_doclones; 897 zfs_handle_t *cb_target; 898 boolean_t cb_defer_destroy; 899 boolean_t cb_verbose; 900 boolean_t cb_parsable; 901 boolean_t cb_dryrun; 902 nvlist_t *cb_nvl; 903 904 /* first snap in contiguous run */ 905 zfs_handle_t *cb_firstsnap; 906 /* previous snap in contiguous run */ 907 zfs_handle_t *cb_prevsnap; 908 int64_t cb_snapused; 909 char *cb_snapspec; 910} destroy_cbdata_t; 911 912/* 913 * Check for any dependents based on the '-r' or '-R' flags. 914 */ 915static int 916destroy_check_dependent(zfs_handle_t *zhp, void *data) 917{ 918 destroy_cbdata_t *cbp = data; 919 const char *tname = zfs_get_name(cbp->cb_target); 920 const char *name = zfs_get_name(zhp); 921 922 if (strncmp(tname, name, strlen(tname)) == 0 && 923 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 924 /* 925 * This is a direct descendant, not a clone somewhere else in 926 * the hierarchy. 927 */ 928 if (cbp->cb_recurse) 929 goto out; 930 931 if (cbp->cb_first) { 932 (void) fprintf(stderr, gettext("cannot destroy '%s': " 933 "%s has children\n"), 934 zfs_get_name(cbp->cb_target), 935 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 936 (void) fprintf(stderr, gettext("use '-r' to destroy " 937 "the following datasets:\n")); 938 cbp->cb_first = B_FALSE; 939 cbp->cb_error = B_TRUE; 940 } 941 942 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 943 } else { 944 /* 945 * This is a clone. We only want to report this if the '-r' 946 * wasn't specified, or the target is a snapshot. 947 */ 948 if (!cbp->cb_recurse && 949 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 950 goto out; 951 952 if (cbp->cb_first) { 953 (void) fprintf(stderr, gettext("cannot destroy '%s': " 954 "%s has dependent clones\n"), 955 zfs_get_name(cbp->cb_target), 956 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 957 (void) fprintf(stderr, gettext("use '-R' to destroy " 958 "the following datasets:\n")); 959 cbp->cb_first = B_FALSE; 960 cbp->cb_error = B_TRUE; 961 cbp->cb_dryrun = B_TRUE; 962 } 963 964 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 965 } 966 967out: 968 zfs_close(zhp); 969 return (0); 970} 971 972static int 973destroy_callback(zfs_handle_t *zhp, void *data) 974{ 975 destroy_cbdata_t *cb = data; 976 const char *name = zfs_get_name(zhp); 977 978 if (cb->cb_verbose) { 979 if (cb->cb_parsable) { 980 (void) printf("destroy\t%s\n", name); 981 } else if (cb->cb_dryrun) { 982 (void) printf(gettext("would destroy %s\n"), 983 name); 984 } else { 985 (void) printf(gettext("will destroy %s\n"), 986 name); 987 } 988 } 989 990 /* 991 * Ignore pools (which we've already flagged as an error before getting 992 * here). 993 */ 994 if (strchr(zfs_get_name(zhp), '/') == NULL && 995 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 996 zfs_close(zhp); 997 return (0); 998 } 999 1000 if (!cb->cb_dryrun) { 1001 if (zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1002 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1003 zfs_close(zhp); 1004 return (-1); 1005 } 1006 } 1007 1008 zfs_close(zhp); 1009 return (0); 1010} 1011 1012static int 1013destroy_print_cb(zfs_handle_t *zhp, void *arg) 1014{ 1015 destroy_cbdata_t *cb = arg; 1016 const char *name = zfs_get_name(zhp); 1017 int err = 0; 1018 1019 if (nvlist_exists(cb->cb_nvl, name)) { 1020 if (cb->cb_firstsnap == NULL) 1021 cb->cb_firstsnap = zfs_handle_dup(zhp); 1022 if (cb->cb_prevsnap != NULL) 1023 zfs_close(cb->cb_prevsnap); 1024 /* this snap continues the current range */ 1025 cb->cb_prevsnap = zfs_handle_dup(zhp); 1026 if (cb->cb_verbose) { 1027 if (cb->cb_parsable) { 1028 (void) printf("destroy\t%s\n", name); 1029 } else if (cb->cb_dryrun) { 1030 (void) printf(gettext("would destroy %s\n"), 1031 name); 1032 } else { 1033 (void) printf(gettext("will destroy %s\n"), 1034 name); 1035 } 1036 } 1037 } else if (cb->cb_firstsnap != NULL) { 1038 /* end of this range */ 1039 uint64_t used = 0; 1040 err = zfs_get_snapused_int(cb->cb_firstsnap, 1041 cb->cb_prevsnap, &used); 1042 cb->cb_snapused += used; 1043 zfs_close(cb->cb_firstsnap); 1044 cb->cb_firstsnap = NULL; 1045 zfs_close(cb->cb_prevsnap); 1046 cb->cb_prevsnap = NULL; 1047 } 1048 zfs_close(zhp); 1049 return (err); 1050} 1051 1052static int 1053destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1054{ 1055 int err; 1056 assert(cb->cb_firstsnap == NULL); 1057 assert(cb->cb_prevsnap == NULL); 1058 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1059 if (cb->cb_firstsnap != NULL) { 1060 uint64_t used = 0; 1061 if (err == 0) { 1062 err = zfs_get_snapused_int(cb->cb_firstsnap, 1063 cb->cb_prevsnap, &used); 1064 } 1065 cb->cb_snapused += used; 1066 zfs_close(cb->cb_firstsnap); 1067 cb->cb_firstsnap = NULL; 1068 zfs_close(cb->cb_prevsnap); 1069 cb->cb_prevsnap = NULL; 1070 } 1071 return (err); 1072} 1073 1074static int 1075snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1076{ 1077 destroy_cbdata_t *cb = arg; 1078 int err = 0; 1079 1080 /* Check for clones. */ 1081 if (!cb->cb_doclones) { 1082 cb->cb_target = zhp; 1083 cb->cb_first = B_TRUE; 1084 err = zfs_iter_dependents(zhp, B_TRUE, 1085 destroy_check_dependent, cb); 1086 } 1087 1088 if (err == 0) { 1089 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1090 nomem(); 1091 } 1092 zfs_close(zhp); 1093 return (err); 1094} 1095 1096static int 1097gather_snapshots(zfs_handle_t *zhp, void *arg) 1098{ 1099 destroy_cbdata_t *cb = arg; 1100 int err = 0; 1101 1102 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1103 if (err == ENOENT) 1104 err = 0; 1105 if (err != 0) 1106 goto out; 1107 1108 if (cb->cb_verbose) { 1109 err = destroy_print_snapshots(zhp, cb); 1110 if (err != 0) 1111 goto out; 1112 } 1113 1114 if (cb->cb_recurse) 1115 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1116 1117out: 1118 zfs_close(zhp); 1119 return (err); 1120} 1121 1122static int 1123destroy_clones(destroy_cbdata_t *cb) 1124{ 1125 nvpair_t *pair; 1126 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1127 pair != NULL; 1128 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1129 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1130 ZFS_TYPE_SNAPSHOT); 1131 if (zhp != NULL) { 1132 boolean_t defer = cb->cb_defer_destroy; 1133 int err; 1134 1135 /* 1136 * We can't defer destroy non-snapshots, so set it to 1137 * false while destroying the clones. 1138 */ 1139 cb->cb_defer_destroy = B_FALSE; 1140 err = zfs_iter_dependents(zhp, B_FALSE, 1141 destroy_callback, cb); 1142 cb->cb_defer_destroy = defer; 1143 zfs_close(zhp); 1144 if (err != 0) 1145 return (err); 1146 } 1147 } 1148 return (0); 1149} 1150 1151static int 1152zfs_do_destroy(int argc, char **argv) 1153{ 1154 destroy_cbdata_t cb = { 0 }; 1155 int c; 1156 zfs_handle_t *zhp; 1157 char *at; 1158 zfs_type_t type = ZFS_TYPE_DATASET; 1159 1160 /* check options */ 1161 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1162 switch (c) { 1163 case 'v': 1164 cb.cb_verbose = B_TRUE; 1165 break; 1166 case 'p': 1167 cb.cb_verbose = B_TRUE; 1168 cb.cb_parsable = B_TRUE; 1169 break; 1170 case 'n': 1171 cb.cb_dryrun = B_TRUE; 1172 break; 1173 case 'd': 1174 cb.cb_defer_destroy = B_TRUE; 1175 type = ZFS_TYPE_SNAPSHOT; 1176 break; 1177 case 'f': 1178 cb.cb_force = B_TRUE; 1179 break; 1180 case 'r': 1181 cb.cb_recurse = B_TRUE; 1182 break; 1183 case 'R': 1184 cb.cb_recurse = B_TRUE; 1185 cb.cb_doclones = B_TRUE; 1186 break; 1187 case '?': 1188 default: 1189 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1190 optopt); 1191 usage(B_FALSE); 1192 } 1193 } 1194 1195 argc -= optind; 1196 argv += optind; 1197 1198 /* check number of arguments */ 1199 if (argc == 0) { 1200 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1201 usage(B_FALSE); 1202 } 1203 if (argc > 1) { 1204 (void) fprintf(stderr, gettext("too many arguments\n")); 1205 usage(B_FALSE); 1206 } 1207 1208 at = strchr(argv[0], '@'); 1209 if (at != NULL) { 1210 int err; 1211 1212 /* Build the list of snaps to destroy in cb_nvl. */ 1213 if (nvlist_alloc(&cb.cb_nvl, NV_UNIQUE_NAME, 0) != 0) 1214 nomem(); 1215 1216 *at = '\0'; 1217 zhp = zfs_open(g_zfs, argv[0], 1218 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1219 if (zhp == NULL) 1220 return (1); 1221 1222 cb.cb_snapspec = at + 1; 1223 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1224 cb.cb_error) { 1225 zfs_close(zhp); 1226 nvlist_free(cb.cb_nvl); 1227 return (1); 1228 } 1229 1230 if (nvlist_empty(cb.cb_nvl)) { 1231 (void) fprintf(stderr, gettext("could not find any " 1232 "snapshots to destroy; check snapshot names.\n")); 1233 zfs_close(zhp); 1234 nvlist_free(cb.cb_nvl); 1235 return (1); 1236 } 1237 1238 if (cb.cb_verbose) { 1239 char buf[16]; 1240 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1241 if (cb.cb_parsable) { 1242 (void) printf("reclaim\t%llu\n", 1243 cb.cb_snapused); 1244 } else if (cb.cb_dryrun) { 1245 (void) printf(gettext("would reclaim %s\n"), 1246 buf); 1247 } else { 1248 (void) printf(gettext("will reclaim %s\n"), 1249 buf); 1250 } 1251 } 1252 1253 if (!cb.cb_dryrun) { 1254 if (cb.cb_doclones) 1255 err = destroy_clones(&cb); 1256 if (err == 0) { 1257 err = zfs_destroy_snaps_nvl(zhp, cb.cb_nvl, 1258 cb.cb_defer_destroy); 1259 } 1260 } 1261 1262 zfs_close(zhp); 1263 nvlist_free(cb.cb_nvl); 1264 if (err != 0) 1265 return (1); 1266 } else { 1267 /* Open the given dataset */ 1268 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1269 return (1); 1270 1271 cb.cb_target = zhp; 1272 1273 /* 1274 * Perform an explicit check for pools before going any further. 1275 */ 1276 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1277 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1278 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1279 "operation does not apply to pools\n"), 1280 zfs_get_name(zhp)); 1281 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1282 "%s' to destroy all datasets in the pool\n"), 1283 zfs_get_name(zhp)); 1284 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1285 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1286 zfs_close(zhp); 1287 return (1); 1288 } 1289 1290 /* 1291 * Check for any dependents and/or clones. 1292 */ 1293 cb.cb_first = B_TRUE; 1294 if (!cb.cb_doclones && 1295 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1296 &cb) != 0) { 1297 zfs_close(zhp); 1298 return (1); 1299 } 1300 1301 if (cb.cb_error) { 1302 zfs_close(zhp); 1303 return (1); 1304 } 1305 1306 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1307 &cb) != 0) { 1308 zfs_close(zhp); 1309 return (1); 1310 } 1311 1312 /* 1313 * Do the real thing. The callback will close the 1314 * handle regardless of whether it succeeds or not. 1315 */ 1316 if (destroy_callback(zhp, &cb) != 0) 1317 return (1); 1318 } 1319 1320 return (0); 1321} 1322 1323static boolean_t 1324is_recvd_column(zprop_get_cbdata_t *cbp) 1325{ 1326 int i; 1327 zfs_get_column_t col; 1328 1329 for (i = 0; i < ZFS_GET_NCOLS && 1330 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1331 if (col == GET_COL_RECVD) 1332 return (B_TRUE); 1333 return (B_FALSE); 1334} 1335 1336/* 1337 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1338 * < all | property[,property]... > < fs | snap | vol > ... 1339 * 1340 * -r recurse over any child datasets 1341 * -H scripted mode. Headers are stripped, and fields are separated 1342 * by tabs instead of spaces. 1343 * -o Set of fields to display. One of "name,property,value, 1344 * received,source". Default is "name,property,value,source". 1345 * "all" is an alias for all five. 1346 * -s Set of sources to allow. One of 1347 * "local,default,inherited,received,temporary,none". Default is 1348 * all six. 1349 * -p Display values in parsable (literal) format. 1350 * 1351 * Prints properties for the given datasets. The user can control which 1352 * columns to display as well as which property types to allow. 1353 */ 1354 1355/* 1356 * Invoked to display the properties for a single dataset. 1357 */ 1358static int 1359get_callback(zfs_handle_t *zhp, void *data) 1360{ 1361 char buf[ZFS_MAXPROPLEN]; 1362 char rbuf[ZFS_MAXPROPLEN]; 1363 zprop_source_t sourcetype; 1364 char source[ZFS_MAXNAMELEN]; 1365 zprop_get_cbdata_t *cbp = data; 1366 nvlist_t *user_props = zfs_get_user_props(zhp); 1367 zprop_list_t *pl = cbp->cb_proplist; 1368 nvlist_t *propval; 1369 char *strval; 1370 char *sourceval; 1371 boolean_t received = is_recvd_column(cbp); 1372 1373 for (; pl != NULL; pl = pl->pl_next) { 1374 char *recvdval = NULL; 1375 /* 1376 * Skip the special fake placeholder. This will also skip over 1377 * the name property when 'all' is specified. 1378 */ 1379 if (pl->pl_prop == ZFS_PROP_NAME && 1380 pl == cbp->cb_proplist) 1381 continue; 1382 1383 if (pl->pl_prop != ZPROP_INVAL) { 1384 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1385 sizeof (buf), &sourcetype, source, 1386 sizeof (source), 1387 cbp->cb_literal) != 0) { 1388 if (pl->pl_all) 1389 continue; 1390 if (!zfs_prop_valid_for_type(pl->pl_prop, 1391 ZFS_TYPE_DATASET)) { 1392 (void) fprintf(stderr, 1393 gettext("No such property '%s'\n"), 1394 zfs_prop_to_name(pl->pl_prop)); 1395 continue; 1396 } 1397 sourcetype = ZPROP_SRC_NONE; 1398 (void) strlcpy(buf, "-", sizeof (buf)); 1399 } 1400 1401 if (received && (zfs_prop_get_recvd(zhp, 1402 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1403 cbp->cb_literal) == 0)) 1404 recvdval = rbuf; 1405 1406 zprop_print_one_property(zfs_get_name(zhp), cbp, 1407 zfs_prop_to_name(pl->pl_prop), 1408 buf, sourcetype, source, recvdval); 1409 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1410 sourcetype = ZPROP_SRC_LOCAL; 1411 1412 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1413 buf, sizeof (buf), cbp->cb_literal) != 0) { 1414 sourcetype = ZPROP_SRC_NONE; 1415 (void) strlcpy(buf, "-", sizeof (buf)); 1416 } 1417 1418 zprop_print_one_property(zfs_get_name(zhp), cbp, 1419 pl->pl_user_prop, buf, sourcetype, source, NULL); 1420 } else if (zfs_prop_written(pl->pl_user_prop)) { 1421 sourcetype = ZPROP_SRC_LOCAL; 1422 1423 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1424 buf, sizeof (buf), cbp->cb_literal) != 0) { 1425 sourcetype = ZPROP_SRC_NONE; 1426 (void) strlcpy(buf, "-", sizeof (buf)); 1427 } 1428 1429 zprop_print_one_property(zfs_get_name(zhp), cbp, 1430 pl->pl_user_prop, buf, sourcetype, source, NULL); 1431 } else { 1432 if (nvlist_lookup_nvlist(user_props, 1433 pl->pl_user_prop, &propval) != 0) { 1434 if (pl->pl_all) 1435 continue; 1436 sourcetype = ZPROP_SRC_NONE; 1437 strval = "-"; 1438 } else { 1439 verify(nvlist_lookup_string(propval, 1440 ZPROP_VALUE, &strval) == 0); 1441 verify(nvlist_lookup_string(propval, 1442 ZPROP_SOURCE, &sourceval) == 0); 1443 1444 if (strcmp(sourceval, 1445 zfs_get_name(zhp)) == 0) { 1446 sourcetype = ZPROP_SRC_LOCAL; 1447 } else if (strcmp(sourceval, 1448 ZPROP_SOURCE_VAL_RECVD) == 0) { 1449 sourcetype = ZPROP_SRC_RECEIVED; 1450 } else { 1451 sourcetype = ZPROP_SRC_INHERITED; 1452 (void) strlcpy(source, 1453 sourceval, sizeof (source)); 1454 } 1455 } 1456 1457 if (received && (zfs_prop_get_recvd(zhp, 1458 pl->pl_user_prop, rbuf, sizeof (rbuf), 1459 cbp->cb_literal) == 0)) 1460 recvdval = rbuf; 1461 1462 zprop_print_one_property(zfs_get_name(zhp), cbp, 1463 pl->pl_user_prop, strval, sourcetype, 1464 source, recvdval); 1465 } 1466 } 1467 1468 return (0); 1469} 1470 1471static int 1472zfs_do_get(int argc, char **argv) 1473{ 1474 zprop_get_cbdata_t cb = { 0 }; 1475 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1476 char *value, *fields; 1477 int ret; 1478 int limit = 0; 1479 zprop_list_t fake_name = { 0 }; 1480 1481 /* 1482 * Set up default columns and sources. 1483 */ 1484 cb.cb_sources = ZPROP_SRC_ALL; 1485 cb.cb_columns[0] = GET_COL_NAME; 1486 cb.cb_columns[1] = GET_COL_PROPERTY; 1487 cb.cb_columns[2] = GET_COL_VALUE; 1488 cb.cb_columns[3] = GET_COL_SOURCE; 1489 cb.cb_type = ZFS_TYPE_DATASET; 1490 1491 /* check options */ 1492 while ((c = getopt(argc, argv, ":d:o:s:rHp")) != -1) { 1493 switch (c) { 1494 case 'p': 1495 cb.cb_literal = B_TRUE; 1496 break; 1497 case 'd': 1498 limit = parse_depth(optarg, &flags); 1499 break; 1500 case 'r': 1501 flags |= ZFS_ITER_RECURSE; 1502 break; 1503 case 'H': 1504 cb.cb_scripted = B_TRUE; 1505 break; 1506 case ':': 1507 (void) fprintf(stderr, gettext("missing argument for " 1508 "'%c' option\n"), optopt); 1509 usage(B_FALSE); 1510 break; 1511 case 'o': 1512 /* 1513 * Process the set of columns to display. We zero out 1514 * the structure to give us a blank slate. 1515 */ 1516 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1517 i = 0; 1518 while (*optarg != '\0') { 1519 static char *col_subopts[] = 1520 { "name", "property", "value", "received", 1521 "source", "all", NULL }; 1522 1523 if (i == ZFS_GET_NCOLS) { 1524 (void) fprintf(stderr, gettext("too " 1525 "many fields given to -o " 1526 "option\n")); 1527 usage(B_FALSE); 1528 } 1529 1530 switch (getsubopt(&optarg, col_subopts, 1531 &value)) { 1532 case 0: 1533 cb.cb_columns[i++] = GET_COL_NAME; 1534 break; 1535 case 1: 1536 cb.cb_columns[i++] = GET_COL_PROPERTY; 1537 break; 1538 case 2: 1539 cb.cb_columns[i++] = GET_COL_VALUE; 1540 break; 1541 case 3: 1542 cb.cb_columns[i++] = GET_COL_RECVD; 1543 flags |= ZFS_ITER_RECVD_PROPS; 1544 break; 1545 case 4: 1546 cb.cb_columns[i++] = GET_COL_SOURCE; 1547 break; 1548 case 5: 1549 if (i > 0) { 1550 (void) fprintf(stderr, 1551 gettext("\"all\" conflicts " 1552 "with specific fields " 1553 "given to -o option\n")); 1554 usage(B_FALSE); 1555 } 1556 cb.cb_columns[0] = GET_COL_NAME; 1557 cb.cb_columns[1] = GET_COL_PROPERTY; 1558 cb.cb_columns[2] = GET_COL_VALUE; 1559 cb.cb_columns[3] = GET_COL_RECVD; 1560 cb.cb_columns[4] = GET_COL_SOURCE; 1561 flags |= ZFS_ITER_RECVD_PROPS; 1562 i = ZFS_GET_NCOLS; 1563 break; 1564 default: 1565 (void) fprintf(stderr, 1566 gettext("invalid column name " 1567 "'%s'\n"), value); 1568 usage(B_FALSE); 1569 } 1570 } 1571 break; 1572 1573 case 's': 1574 cb.cb_sources = 0; 1575 while (*optarg != '\0') { 1576 static char *source_subopts[] = { 1577 "local", "default", "inherited", 1578 "received", "temporary", "none", 1579 NULL }; 1580 1581 switch (getsubopt(&optarg, source_subopts, 1582 &value)) { 1583 case 0: 1584 cb.cb_sources |= ZPROP_SRC_LOCAL; 1585 break; 1586 case 1: 1587 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1588 break; 1589 case 2: 1590 cb.cb_sources |= ZPROP_SRC_INHERITED; 1591 break; 1592 case 3: 1593 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1594 break; 1595 case 4: 1596 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1597 break; 1598 case 5: 1599 cb.cb_sources |= ZPROP_SRC_NONE; 1600 break; 1601 default: 1602 (void) fprintf(stderr, 1603 gettext("invalid source " 1604 "'%s'\n"), value); 1605 usage(B_FALSE); 1606 } 1607 } 1608 break; 1609 1610 case '?': 1611 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1612 optopt); 1613 usage(B_FALSE); 1614 } 1615 } 1616 1617 argc -= optind; 1618 argv += optind; 1619 1620 if (argc < 1) { 1621 (void) fprintf(stderr, gettext("missing property " 1622 "argument\n")); 1623 usage(B_FALSE); 1624 } 1625 1626 fields = argv[0]; 1627 1628 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1629 != 0) 1630 usage(B_FALSE); 1631 1632 argc--; 1633 argv++; 1634 1635 /* 1636 * As part of zfs_expand_proplist(), we keep track of the maximum column 1637 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1638 * need to know the maximum name length. However, the user likely did 1639 * not specify 'name' as one of the properties to fetch, so we need to 1640 * make sure we always include at least this property for 1641 * print_get_headers() to work properly. 1642 */ 1643 if (cb.cb_proplist != NULL) { 1644 fake_name.pl_prop = ZFS_PROP_NAME; 1645 fake_name.pl_width = strlen(gettext("NAME")); 1646 fake_name.pl_next = cb.cb_proplist; 1647 cb.cb_proplist = &fake_name; 1648 } 1649 1650 cb.cb_first = B_TRUE; 1651 1652 /* run for each object */ 1653 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, NULL, 1654 &cb.cb_proplist, limit, get_callback, &cb); 1655 1656 if (cb.cb_proplist == &fake_name) 1657 zprop_free_list(fake_name.pl_next); 1658 else 1659 zprop_free_list(cb.cb_proplist); 1660 1661 return (ret); 1662} 1663 1664/* 1665 * inherit [-rS] <property> <fs|vol> ... 1666 * 1667 * -r Recurse over all children 1668 * -S Revert to received value, if any 1669 * 1670 * For each dataset specified on the command line, inherit the given property 1671 * from its parent. Inheriting a property at the pool level will cause it to 1672 * use the default value. The '-r' flag will recurse over all children, and is 1673 * useful for setting a property on a hierarchy-wide basis, regardless of any 1674 * local modifications for each dataset. 1675 */ 1676 1677typedef struct inherit_cbdata { 1678 const char *cb_propname; 1679 boolean_t cb_received; 1680} inherit_cbdata_t; 1681 1682static int 1683inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1684{ 1685 inherit_cbdata_t *cb = data; 1686 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1687 1688 /* 1689 * If we're doing it recursively, then ignore properties that 1690 * are not valid for this type of dataset. 1691 */ 1692 if (prop != ZPROP_INVAL && 1693 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1694 return (0); 1695 1696 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1697} 1698 1699static int 1700inherit_cb(zfs_handle_t *zhp, void *data) 1701{ 1702 inherit_cbdata_t *cb = data; 1703 1704 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1705} 1706 1707static int 1708zfs_do_inherit(int argc, char **argv) 1709{ 1710 int c; 1711 zfs_prop_t prop; 1712 inherit_cbdata_t cb = { 0 }; 1713 char *propname; 1714 int ret; 1715 int flags = 0; 1716 boolean_t received = B_FALSE; 1717 1718 /* check options */ 1719 while ((c = getopt(argc, argv, "rS")) != -1) { 1720 switch (c) { 1721 case 'r': 1722 flags |= ZFS_ITER_RECURSE; 1723 break; 1724 case 'S': 1725 received = B_TRUE; 1726 break; 1727 case '?': 1728 default: 1729 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1730 optopt); 1731 usage(B_FALSE); 1732 } 1733 } 1734 1735 argc -= optind; 1736 argv += optind; 1737 1738 /* check number of arguments */ 1739 if (argc < 1) { 1740 (void) fprintf(stderr, gettext("missing property argument\n")); 1741 usage(B_FALSE); 1742 } 1743 if (argc < 2) { 1744 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1745 usage(B_FALSE); 1746 } 1747 1748 propname = argv[0]; 1749 argc--; 1750 argv++; 1751 1752 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1753 if (zfs_prop_readonly(prop)) { 1754 (void) fprintf(stderr, gettext( 1755 "%s property is read-only\n"), 1756 propname); 1757 return (1); 1758 } 1759 if (!zfs_prop_inheritable(prop) && !received) { 1760 (void) fprintf(stderr, gettext("'%s' property cannot " 1761 "be inherited\n"), propname); 1762 if (prop == ZFS_PROP_QUOTA || 1763 prop == ZFS_PROP_RESERVATION || 1764 prop == ZFS_PROP_REFQUOTA || 1765 prop == ZFS_PROP_REFRESERVATION) 1766 (void) fprintf(stderr, gettext("use 'zfs set " 1767 "%s=none' to clear\n"), propname); 1768 return (1); 1769 } 1770 if (received && (prop == ZFS_PROP_VOLSIZE || 1771 prop == ZFS_PROP_VERSION)) { 1772 (void) fprintf(stderr, gettext("'%s' property cannot " 1773 "be reverted to a received value\n"), propname); 1774 return (1); 1775 } 1776 } else if (!zfs_prop_user(propname)) { 1777 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1778 propname); 1779 usage(B_FALSE); 1780 } 1781 1782 cb.cb_propname = propname; 1783 cb.cb_received = received; 1784 1785 if (flags & ZFS_ITER_RECURSE) { 1786 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1787 NULL, NULL, 0, inherit_recurse_cb, &cb); 1788 } else { 1789 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1790 NULL, NULL, 0, inherit_cb, &cb); 1791 } 1792 1793 return (ret); 1794} 1795 1796typedef struct upgrade_cbdata { 1797 uint64_t cb_numupgraded; 1798 uint64_t cb_numsamegraded; 1799 uint64_t cb_numfailed; 1800 uint64_t cb_version; 1801 boolean_t cb_newer; 1802 boolean_t cb_foundone; 1803 char cb_lastfs[ZFS_MAXNAMELEN]; 1804} upgrade_cbdata_t; 1805 1806static int 1807same_pool(zfs_handle_t *zhp, const char *name) 1808{ 1809 int len1 = strcspn(name, "/@"); 1810 const char *zhname = zfs_get_name(zhp); 1811 int len2 = strcspn(zhname, "/@"); 1812 1813 if (len1 != len2) 1814 return (B_FALSE); 1815 return (strncmp(name, zhname, len1) == 0); 1816} 1817 1818static int 1819upgrade_list_callback(zfs_handle_t *zhp, void *data) 1820{ 1821 upgrade_cbdata_t *cb = data; 1822 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1823 1824 /* list if it's old/new */ 1825 if ((!cb->cb_newer && version < ZPL_VERSION) || 1826 (cb->cb_newer && version > ZPL_VERSION)) { 1827 char *str; 1828 if (cb->cb_newer) { 1829 str = gettext("The following filesystems are " 1830 "formatted using a newer software version and\n" 1831 "cannot be accessed on the current system.\n\n"); 1832 } else { 1833 str = gettext("The following filesystems are " 1834 "out of date, and can be upgraded. After being\n" 1835 "upgraded, these filesystems (and any 'zfs send' " 1836 "streams generated from\n" 1837 "subsequent snapshots) will no longer be " 1838 "accessible by older software versions.\n\n"); 1839 } 1840 1841 if (!cb->cb_foundone) { 1842 (void) puts(str); 1843 (void) printf(gettext("VER FILESYSTEM\n")); 1844 (void) printf(gettext("--- ------------\n")); 1845 cb->cb_foundone = B_TRUE; 1846 } 1847 1848 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1849 } 1850 1851 return (0); 1852} 1853 1854static int 1855upgrade_set_callback(zfs_handle_t *zhp, void *data) 1856{ 1857 upgrade_cbdata_t *cb = data; 1858 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1859 int needed_spa_version; 1860 int spa_version; 1861 1862 if (zfs_spa_version(zhp, &spa_version) < 0) 1863 return (-1); 1864 1865 needed_spa_version = zfs_spa_version_map(cb->cb_version); 1866 1867 if (needed_spa_version < 0) 1868 return (-1); 1869 1870 if (spa_version < needed_spa_version) { 1871 /* can't upgrade */ 1872 (void) printf(gettext("%s: can not be " 1873 "upgraded; the pool version needs to first " 1874 "be upgraded\nto version %d\n\n"), 1875 zfs_get_name(zhp), needed_spa_version); 1876 cb->cb_numfailed++; 1877 return (0); 1878 } 1879 1880 /* upgrade */ 1881 if (version < cb->cb_version) { 1882 char verstr[16]; 1883 (void) snprintf(verstr, sizeof (verstr), 1884 "%llu", cb->cb_version); 1885 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 1886 /* 1887 * If they did "zfs upgrade -a", then we could 1888 * be doing ioctls to different pools. We need 1889 * to log this history once to each pool. 1890 */ 1891 verify(zpool_stage_history(g_zfs, history_str) == 0); 1892 } 1893 if (zfs_prop_set(zhp, "version", verstr) == 0) 1894 cb->cb_numupgraded++; 1895 else 1896 cb->cb_numfailed++; 1897 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 1898 } else if (version > cb->cb_version) { 1899 /* can't downgrade */ 1900 (void) printf(gettext("%s: can not be downgraded; " 1901 "it is already at version %u\n"), 1902 zfs_get_name(zhp), version); 1903 cb->cb_numfailed++; 1904 } else { 1905 cb->cb_numsamegraded++; 1906 } 1907 return (0); 1908} 1909 1910/* 1911 * zfs upgrade 1912 * zfs upgrade -v 1913 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 1914 */ 1915static int 1916zfs_do_upgrade(int argc, char **argv) 1917{ 1918 boolean_t all = B_FALSE; 1919 boolean_t showversions = B_FALSE; 1920 int ret; 1921 upgrade_cbdata_t cb = { 0 }; 1922 char c; 1923 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1924 1925 /* check options */ 1926 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 1927 switch (c) { 1928 case 'r': 1929 flags |= ZFS_ITER_RECURSE; 1930 break; 1931 case 'v': 1932 showversions = B_TRUE; 1933 break; 1934 case 'V': 1935 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 1936 optarg, &cb.cb_version) != 0) { 1937 (void) fprintf(stderr, 1938 gettext("invalid version %s\n"), optarg); 1939 usage(B_FALSE); 1940 } 1941 break; 1942 case 'a': 1943 all = B_TRUE; 1944 break; 1945 case '?': 1946 default: 1947 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1948 optopt); 1949 usage(B_FALSE); 1950 } 1951 } 1952 1953 argc -= optind; 1954 argv += optind; 1955 1956 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 1957 usage(B_FALSE); 1958 if (showversions && (flags & ZFS_ITER_RECURSE || all || 1959 cb.cb_version || argc)) 1960 usage(B_FALSE); 1961 if ((all || argc) && (showversions)) 1962 usage(B_FALSE); 1963 if (all && argc) 1964 usage(B_FALSE); 1965 1966 if (showversions) { 1967 /* Show info on available versions. */ 1968 (void) printf(gettext("The following filesystem versions are " 1969 "supported:\n\n")); 1970 (void) printf(gettext("VER DESCRIPTION\n")); 1971 (void) printf("--- -----------------------------------------" 1972 "---------------\n"); 1973 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 1974 (void) printf(gettext(" 2 Enhanced directory entries\n")); 1975 (void) printf(gettext(" 3 Case insensitive and filesystem " 1976 "user identifier (FUID)\n")); 1977 (void) printf(gettext(" 4 userquota, groupquota " 1978 "properties\n")); 1979 (void) printf(gettext(" 5 System attributes\n")); 1980 (void) printf(gettext("\nFor more information on a particular " 1981 "version, including supported releases,\n")); 1982 (void) printf("see the ZFS Administration Guide.\n\n"); 1983 ret = 0; 1984 } else if (argc || all) { 1985 /* Upgrade filesystems */ 1986 if (cb.cb_version == 0) 1987 cb.cb_version = ZPL_VERSION; 1988 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 1989 NULL, NULL, 0, upgrade_set_callback, &cb); 1990 (void) printf(gettext("%llu filesystems upgraded\n"), 1991 cb.cb_numupgraded); 1992 if (cb.cb_numsamegraded) { 1993 (void) printf(gettext("%llu filesystems already at " 1994 "this version\n"), 1995 cb.cb_numsamegraded); 1996 } 1997 if (cb.cb_numfailed != 0) 1998 ret = 1; 1999 } else { 2000 /* List old-version filesytems */ 2001 boolean_t found; 2002 (void) printf(gettext("This system is currently running " 2003 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2004 2005 flags |= ZFS_ITER_RECURSE; 2006 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2007 NULL, NULL, 0, upgrade_list_callback, &cb); 2008 2009 found = cb.cb_foundone; 2010 cb.cb_foundone = B_FALSE; 2011 cb.cb_newer = B_TRUE; 2012 2013 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2014 NULL, NULL, 0, upgrade_list_callback, &cb); 2015 2016 if (!cb.cb_foundone && !found) { 2017 (void) printf(gettext("All filesystems are " 2018 "formatted with the current version.\n")); 2019 } 2020 } 2021 2022 return (ret); 2023} 2024 2025#define USTYPE_USR_BIT (0) 2026#define USTYPE_GRP_BIT (1) 2027#define USTYPE_PSX_BIT (2) 2028#define USTYPE_SMB_BIT (3) 2029 2030#define USTYPE_USR (1 << USTYPE_USR_BIT) 2031#define USTYPE_GRP (1 << USTYPE_GRP_BIT) 2032 2033#define USTYPE_PSX (1 << USTYPE_PSX_BIT) 2034#define USTYPE_SMB (1 << USTYPE_SMB_BIT) 2035 2036#define USTYPE_PSX_USR (USTYPE_PSX | USTYPE_USR) 2037#define USTYPE_SMB_USR (USTYPE_SMB | USTYPE_USR) 2038#define USTYPE_PSX_GRP (USTYPE_PSX | USTYPE_GRP) 2039#define USTYPE_SMB_GRP (USTYPE_SMB | USTYPE_GRP) 2040#define USTYPE_ALL (USTYPE_PSX_USR | USTYPE_SMB_USR \ 2041 | USTYPE_PSX_GRP | USTYPE_SMB_GRP) 2042 2043 2044#define USPROP_USED_BIT (0) 2045#define USPROP_QUOTA_BIT (1) 2046 2047#define USPROP_USED (1 << USPROP_USED_BIT) 2048#define USPROP_QUOTA (1 << USPROP_QUOTA_BIT) 2049 2050typedef struct us_node { 2051 nvlist_t *usn_nvl; 2052 uu_avl_node_t usn_avlnode; 2053 uu_list_node_t usn_listnode; 2054} us_node_t; 2055 2056typedef struct us_cbdata { 2057 nvlist_t **cb_nvlp; 2058 uu_avl_pool_t *cb_avl_pool; 2059 uu_avl_t *cb_avl; 2060 boolean_t cb_numname; 2061 boolean_t cb_nicenum; 2062 boolean_t cb_sid2posix; 2063 zfs_userquota_prop_t cb_prop; 2064 zfs_sort_column_t *cb_sortcol; 2065 size_t cb_max_typelen; 2066 size_t cb_max_namelen; 2067 size_t cb_max_usedlen; 2068 size_t cb_max_quotalen; 2069} us_cbdata_t; 2070 2071typedef struct { 2072 zfs_sort_column_t *si_sortcol; 2073 boolean_t si_num_name; 2074 boolean_t si_parsable; 2075} us_sort_info_t; 2076 2077static int 2078us_compare(const void *larg, const void *rarg, void *unused) 2079{ 2080 const us_node_t *l = larg; 2081 const us_node_t *r = rarg; 2082 int rc = 0; 2083 us_sort_info_t *si = (us_sort_info_t *)unused; 2084 zfs_sort_column_t *sortcol = si->si_sortcol; 2085 boolean_t num_name = si->si_num_name; 2086 nvlist_t *lnvl = l->usn_nvl; 2087 nvlist_t *rnvl = r->usn_nvl; 2088 2089 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2090 char *lvstr = ""; 2091 char *rvstr = ""; 2092 uint32_t lv32 = 0; 2093 uint32_t rv32 = 0; 2094 uint64_t lv64 = 0; 2095 uint64_t rv64 = 0; 2096 zfs_prop_t prop = sortcol->sc_prop; 2097 const char *propname = NULL; 2098 boolean_t reverse = sortcol->sc_reverse; 2099 2100 switch (prop) { 2101 case ZFS_PROP_TYPE: 2102 propname = "type"; 2103 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2104 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2105 if (rv32 != lv32) 2106 rc = (rv32 > lv32) ? 1 : -1; 2107 break; 2108 case ZFS_PROP_NAME: 2109 propname = "name"; 2110 if (num_name) { 2111 (void) nvlist_lookup_uint32(lnvl, propname, 2112 &lv32); 2113 (void) nvlist_lookup_uint32(rnvl, propname, 2114 &rv32); 2115 if (rv32 != lv32) 2116 rc = (rv32 > lv32) ? 1 : -1; 2117 } else { 2118 (void) nvlist_lookup_string(lnvl, propname, 2119 &lvstr); 2120 (void) nvlist_lookup_string(rnvl, propname, 2121 &rvstr); 2122 rc = strcmp(lvstr, rvstr); 2123 } 2124 break; 2125 2126 case ZFS_PROP_USED: 2127 case ZFS_PROP_QUOTA: 2128 if (ZFS_PROP_USED == prop) 2129 propname = "used"; 2130 else 2131 propname = "quota"; 2132 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2133 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2134 if (rv64 != lv64) 2135 rc = (rv64 > lv64) ? 1 : -1; 2136 } 2137 2138 if (rc) 2139 if (rc < 0) 2140 return (reverse ? 1 : -1); 2141 else 2142 return (reverse ? -1 : 1); 2143 } 2144 2145 return (rc); 2146} 2147 2148static inline const char * 2149us_type2str(unsigned field_type) 2150{ 2151 switch (field_type) { 2152 case USTYPE_PSX_USR: 2153 return ("POSIX User"); 2154 case USTYPE_PSX_GRP: 2155 return ("POSIX Group"); 2156 case USTYPE_SMB_USR: 2157 return ("SMB User"); 2158 case USTYPE_SMB_GRP: 2159 return ("SMB Group"); 2160 default: 2161 return ("Undefined"); 2162 } 2163} 2164 2165/* 2166 * zfs userspace 2167 */ 2168static int 2169userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2170{ 2171 us_cbdata_t *cb = (us_cbdata_t *)arg; 2172 zfs_userquota_prop_t prop = cb->cb_prop; 2173 char *name = NULL; 2174 char *propname; 2175 char namebuf[32]; 2176 char sizebuf[32]; 2177 us_node_t *node; 2178 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2179 uu_avl_t *avl = cb->cb_avl; 2180 uu_avl_index_t idx; 2181 nvlist_t *props; 2182 us_node_t *n; 2183 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2184 unsigned type; 2185 const char *typestr; 2186 size_t namelen; 2187 size_t typelen; 2188 size_t sizelen; 2189 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2190 2191 if (domain == NULL || domain[0] == '\0') { 2192 /* POSIX */ 2193 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2194 type = USTYPE_PSX_GRP; 2195 struct group *g = getgrgid(rid); 2196 if (g) 2197 name = g->gr_name; 2198 } else { 2199 type = USTYPE_PSX_USR; 2200 struct passwd *p = getpwuid(rid); 2201 if (p) 2202 name = p->pw_name; 2203 } 2204 } else { 2205 char sid[ZFS_MAXNAMELEN+32]; 2206 uid_t id; 2207 uint64_t classes; 2208#ifdef sun 2209 int err; 2210 directory_error_t e; 2211#endif 2212 2213 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2214 /* SMB */ 2215 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2216 type = USTYPE_SMB_GRP; 2217#ifdef sun 2218 err = sid_to_id(sid, B_FALSE, &id); 2219#endif 2220 } else { 2221 type = USTYPE_SMB_USR; 2222#ifdef sun 2223 err = sid_to_id(sid, B_TRUE, &id); 2224#endif 2225 } 2226 2227#ifdef sun 2228 if (err == 0) { 2229 rid = id; 2230 2231 e = directory_name_from_sid(NULL, sid, &name, &classes); 2232 if (e != NULL) { 2233 directory_error_free(e); 2234 return (NULL); 2235 } 2236 2237 if (name == NULL) 2238 name = sid; 2239 } 2240#endif 2241 } 2242 2243/* 2244 * if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) 2245 * ug = "group"; 2246 * else 2247 * ug = "user"; 2248 */ 2249 2250 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) 2251 propname = "used"; 2252 else 2253 propname = "quota"; 2254 2255 (void) snprintf(namebuf, sizeof (namebuf), "%u", rid); 2256 if (name == NULL) 2257 name = namebuf; 2258 2259 if (cb->cb_nicenum) 2260 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2261 else 2262 (void) sprintf(sizebuf, "%llu", space); 2263 2264 node = safe_malloc(sizeof (us_node_t)); 2265 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2266 2267 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { 2268 free(node); 2269 return (-1); 2270 } 2271 2272 if (nvlist_add_uint32(props, "type", type) != 0) 2273 nomem(); 2274 2275 if (cb->cb_numname) { 2276 if (nvlist_add_uint32(props, "name", rid) != 0) 2277 nomem(); 2278 namelen = strlen(namebuf); 2279 } else { 2280 if (nvlist_add_string(props, "name", name) != 0) 2281 nomem(); 2282 namelen = strlen(name); 2283 } 2284 2285 typestr = us_type2str(type); 2286 typelen = strlen(gettext(typestr)); 2287 if (typelen > cb->cb_max_typelen) 2288 cb->cb_max_typelen = typelen; 2289 2290 if (namelen > cb->cb_max_namelen) 2291 cb->cb_max_namelen = namelen; 2292 2293 sizelen = strlen(sizebuf); 2294 if (0 == strcmp(propname, "used")) { 2295 if (sizelen > cb->cb_max_usedlen) 2296 cb->cb_max_usedlen = sizelen; 2297 } else { 2298 if (sizelen > cb->cb_max_quotalen) 2299 cb->cb_max_quotalen = sizelen; 2300 } 2301 2302 node->usn_nvl = props; 2303 2304 n = uu_avl_find(avl, node, &sortinfo, &idx); 2305 if (n == NULL) 2306 uu_avl_insert(avl, node, idx); 2307 else { 2308 nvlist_free(props); 2309 free(node); 2310 node = n; 2311 props = node->usn_nvl; 2312 } 2313 2314 if (nvlist_add_uint64(props, propname, space) != 0) 2315 nomem(); 2316 2317 return (0); 2318} 2319 2320static inline boolean_t 2321usprop_check(zfs_userquota_prop_t p, unsigned types, unsigned props) 2322{ 2323 unsigned type; 2324 unsigned prop; 2325 2326 switch (p) { 2327 case ZFS_PROP_USERUSED: 2328 type = USTYPE_USR; 2329 prop = USPROP_USED; 2330 break; 2331 case ZFS_PROP_USERQUOTA: 2332 type = USTYPE_USR; 2333 prop = USPROP_QUOTA; 2334 break; 2335 case ZFS_PROP_GROUPUSED: 2336 type = USTYPE_GRP; 2337 prop = USPROP_USED; 2338 break; 2339 case ZFS_PROP_GROUPQUOTA: 2340 type = USTYPE_GRP; 2341 prop = USPROP_QUOTA; 2342 break; 2343 default: /* ALL */ 2344 return (B_TRUE); 2345 }; 2346 2347 return (type & types && prop & props); 2348} 2349 2350#define USFIELD_TYPE (1 << 0) 2351#define USFIELD_NAME (1 << 1) 2352#define USFIELD_USED (1 << 2) 2353#define USFIELD_QUOTA (1 << 3) 2354#define USFIELD_ALL (USFIELD_TYPE | USFIELD_NAME | USFIELD_USED | USFIELD_QUOTA) 2355 2356static int 2357parsefields(unsigned *fieldsp, char **names, unsigned *bits, size_t len) 2358{ 2359 char *field = optarg; 2360 char *delim; 2361 2362 do { 2363 int i; 2364 boolean_t found = B_FALSE; 2365 delim = strchr(field, ','); 2366 if (delim != NULL) 2367 *delim = '\0'; 2368 2369 for (i = 0; i < len; i++) 2370 if (0 == strcmp(field, names[i])) { 2371 found = B_TRUE; 2372 *fieldsp |= bits[i]; 2373 break; 2374 } 2375 2376 if (!found) { 2377 (void) fprintf(stderr, gettext("invalid type '%s'" 2378 "for -t option\n"), field); 2379 return (-1); 2380 } 2381 2382 field = delim + 1; 2383 } while (delim); 2384 2385 return (0); 2386} 2387 2388 2389static char *type_names[] = { "posixuser", "smbuser", "posixgroup", "smbgroup", 2390 "all" }; 2391static unsigned type_bits[] = { 2392 USTYPE_PSX_USR, 2393 USTYPE_SMB_USR, 2394 USTYPE_PSX_GRP, 2395 USTYPE_SMB_GRP, 2396 USTYPE_ALL 2397}; 2398 2399static char *us_field_names[] = { "type", "name", "used", "quota" }; 2400static unsigned us_field_bits[] = { 2401 USFIELD_TYPE, 2402 USFIELD_NAME, 2403 USFIELD_USED, 2404 USFIELD_QUOTA 2405}; 2406 2407static void 2408print_us_node(boolean_t scripted, boolean_t parseable, unsigned fields, 2409 size_t type_width, size_t name_width, size_t used_width, 2410 size_t quota_width, us_node_t *node) 2411{ 2412 nvlist_t *nvl = node->usn_nvl; 2413 nvpair_t *nvp = NULL; 2414 char valstr[ZFS_MAXNAMELEN]; 2415 boolean_t first = B_TRUE; 2416 boolean_t quota_found = B_FALSE; 2417 2418 if (fields & USFIELD_QUOTA && !nvlist_exists(nvl, "quota")) 2419 if (nvlist_add_string(nvl, "quota", "none") != 0) 2420 nomem(); 2421 2422 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2423 char *pname = nvpair_name(nvp); 2424 data_type_t type = nvpair_type(nvp); 2425 uint32_t val32 = 0; 2426 uint64_t val64 = 0; 2427 char *strval = NULL; 2428 unsigned field = 0; 2429 unsigned width = 0; 2430 int i; 2431 for (i = 0; i < 4; i++) { 2432 if (0 == strcmp(pname, us_field_names[i])) { 2433 field = us_field_bits[i]; 2434 break; 2435 } 2436 } 2437 2438 if (!(field & fields)) 2439 continue; 2440 2441 switch (type) { 2442 case DATA_TYPE_UINT32: 2443 (void) nvpair_value_uint32(nvp, &val32); 2444 break; 2445 case DATA_TYPE_UINT64: 2446 (void) nvpair_value_uint64(nvp, &val64); 2447 break; 2448 case DATA_TYPE_STRING: 2449 (void) nvpair_value_string(nvp, &strval); 2450 break; 2451 default: 2452 (void) fprintf(stderr, "Invalid data type\n"); 2453 } 2454 2455 if (!first) 2456 if (scripted) 2457 (void) printf("\t"); 2458 else 2459 (void) printf(" "); 2460 2461 switch (field) { 2462 case USFIELD_TYPE: 2463 strval = (char *)us_type2str(val32); 2464 width = type_width; 2465 break; 2466 case USFIELD_NAME: 2467 if (type == DATA_TYPE_UINT64) { 2468 (void) sprintf(valstr, "%llu", val64); 2469 strval = valstr; 2470 } 2471 width = name_width; 2472 break; 2473 case USFIELD_USED: 2474 case USFIELD_QUOTA: 2475 if (type == DATA_TYPE_UINT64) { 2476 (void) nvpair_value_uint64(nvp, &val64); 2477 if (parseable) 2478 (void) sprintf(valstr, "%llu", val64); 2479 else 2480 zfs_nicenum(val64, valstr, 2481 sizeof (valstr)); 2482 strval = valstr; 2483 } 2484 2485 if (field == USFIELD_USED) 2486 width = used_width; 2487 else { 2488 quota_found = B_FALSE; 2489 width = quota_width; 2490 } 2491 2492 break; 2493 } 2494 2495 if (field == USFIELD_QUOTA && !quota_found) 2496 (void) printf("%*s", width, strval); 2497 else { 2498 if (type == DATA_TYPE_STRING) 2499 (void) printf("%-*s", width, strval); 2500 else 2501 (void) printf("%*s", width, strval); 2502 } 2503 2504 first = B_FALSE; 2505 2506 } 2507 2508 (void) printf("\n"); 2509} 2510 2511static void 2512print_us(boolean_t scripted, boolean_t parsable, unsigned fields, 2513 unsigned type_width, unsigned name_width, unsigned used_width, 2514 unsigned quota_width, boolean_t rmnode, uu_avl_t *avl) 2515{ 2516 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2517 us_node_t *node; 2518 const char *col; 2519 int i; 2520 size_t width[4] = { type_width, name_width, used_width, quota_width }; 2521 2522 if (!scripted) { 2523 boolean_t first = B_TRUE; 2524 for (i = 0; i < 4; i++) { 2525 unsigned field = us_field_bits[i]; 2526 if (!(field & fields)) 2527 continue; 2528 2529 col = gettext(us_field_hdr[i]); 2530 if (field == USFIELD_TYPE || field == USFIELD_NAME) 2531 (void) printf(first?"%-*s":" %-*s", width[i], 2532 col); 2533 else 2534 (void) printf(first?"%*s":" %*s", width[i], 2535 col); 2536 first = B_FALSE; 2537 } 2538 (void) printf("\n"); 2539 } 2540 2541 for (node = uu_avl_first(avl); node != NULL; 2542 node = uu_avl_next(avl, node)) { 2543 print_us_node(scripted, parsable, fields, type_width, 2544 name_width, used_width, used_width, node); 2545 if (rmnode) 2546 nvlist_free(node->usn_nvl); 2547 } 2548} 2549 2550static int 2551zfs_do_userspace(int argc, char **argv) 2552{ 2553 zfs_handle_t *zhp; 2554 zfs_userquota_prop_t p; 2555 2556 uu_avl_pool_t *avl_pool; 2557 uu_avl_t *avl_tree; 2558 uu_avl_walk_t *walk; 2559 2560 char *cmd; 2561 boolean_t scripted = B_FALSE; 2562 boolean_t prtnum = B_FALSE; 2563 boolean_t parseable = B_FALSE; 2564 boolean_t sid2posix = B_FALSE; 2565 int error; 2566 int c; 2567 zfs_sort_column_t *default_sortcol = NULL; 2568 zfs_sort_column_t *sortcol = NULL; 2569 unsigned types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2570 unsigned fields = 0; 2571 unsigned props = USPROP_USED | USPROP_QUOTA; 2572 us_cbdata_t cb; 2573 us_node_t *node; 2574 boolean_t resort_avl = B_FALSE; 2575 2576 if (argc < 2) 2577 usage(B_FALSE); 2578 2579 cmd = argv[0]; 2580 if (0 == strcmp(cmd, "groupspace")) 2581 /* toggle default group types */ 2582 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2583 2584 /* check options */ 2585 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2586 switch (c) { 2587 case 'n': 2588 prtnum = B_TRUE; 2589 break; 2590 case 'H': 2591 scripted = B_TRUE; 2592 break; 2593 case 'p': 2594 parseable = B_TRUE; 2595 break; 2596 case 'o': 2597 if (parsefields(&fields, us_field_names, us_field_bits, 2598 4) != 0) 2599 return (1); 2600 break; 2601 case 's': 2602 if (zfs_add_sort_column(&sortcol, optarg, 2603 B_FALSE) != 0) { 2604 (void) fprintf(stderr, 2605 gettext("invalid property '%s'\n"), optarg); 2606 usage(B_FALSE); 2607 } 2608 break; 2609 case 'S': 2610 if (zfs_add_sort_column(&sortcol, optarg, 2611 B_TRUE) != 0) { 2612 (void) fprintf(stderr, 2613 gettext("invalid property '%s'\n"), optarg); 2614 usage(B_FALSE); 2615 } 2616 break; 2617 case 't': 2618 if (parsefields(&types, type_names, type_bits, 5)) 2619 return (1); 2620 break; 2621 case 'i': 2622 sid2posix = B_TRUE; 2623 break; 2624 case ':': 2625 (void) fprintf(stderr, gettext("missing argument for " 2626 "'%c' option\n"), optopt); 2627 usage(B_FALSE); 2628 break; 2629 case '?': 2630 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2631 optopt); 2632 usage(B_FALSE); 2633 } 2634 } 2635 2636 argc -= optind; 2637 argv += optind; 2638 2639 /* ok, now we have sorted by default colums (type,name) avl tree */ 2640 if (sortcol) { 2641 zfs_sort_column_t *sc; 2642 for (sc = sortcol; sc; sc = sc->sc_next) { 2643 if (sc->sc_prop == ZFS_PROP_QUOTA) { 2644 resort_avl = B_TRUE; 2645 break; 2646 } 2647 } 2648 } 2649 2650 if (!fields) 2651 fields = USFIELD_ALL; 2652 2653 if ((zhp = zfs_open(g_zfs, argv[argc-1], ZFS_TYPE_DATASET)) == NULL) 2654 return (1); 2655 2656 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2657 offsetof(us_node_t, usn_avlnode), 2658 us_compare, UU_DEFAULT)) == NULL) 2659 nomem(); 2660 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2661 nomem(); 2662 2663 if (sortcol && !resort_avl) 2664 cb.cb_sortcol = sortcol; 2665 else { 2666 (void) zfs_add_sort_column(&default_sortcol, "type", B_FALSE); 2667 (void) zfs_add_sort_column(&default_sortcol, "name", B_FALSE); 2668 cb.cb_sortcol = default_sortcol; 2669 } 2670 cb.cb_numname = prtnum; 2671 cb.cb_nicenum = !parseable; 2672 cb.cb_avl_pool = avl_pool; 2673 cb.cb_avl = avl_tree; 2674 cb.cb_sid2posix = sid2posix; 2675 cb.cb_max_typelen = strlen(gettext("TYPE")); 2676 cb.cb_max_namelen = strlen(gettext("NAME")); 2677 cb.cb_max_usedlen = strlen(gettext("USED")); 2678 cb.cb_max_quotalen = strlen(gettext("QUOTA")); 2679 2680 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2681 if (!usprop_check(p, types, props)) 2682 continue; 2683 2684 cb.cb_prop = p; 2685 error = zfs_userspace(zhp, p, userspace_cb, &cb); 2686 2687 if (error) 2688 break; 2689 } 2690 2691 if (resort_avl) { 2692 us_node_t *node; 2693 us_node_t *rmnode; 2694 uu_list_pool_t *listpool; 2695 uu_list_t *list; 2696 uu_avl_index_t idx = 0; 2697 uu_list_index_t idx2 = 0; 2698 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2699 offsetof(us_node_t, usn_listnode), NULL, 2700 UU_DEFAULT); 2701 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2702 2703 node = uu_avl_first(avl_tree); 2704 uu_list_node_init(node, &node->usn_listnode, listpool); 2705 while (node != NULL) { 2706 rmnode = node; 2707 node = uu_avl_next(avl_tree, node); 2708 uu_avl_remove(avl_tree, rmnode); 2709 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) { 2710 uu_list_insert(list, rmnode, idx2); 2711 } 2712 } 2713 2714 for (node = uu_list_first(list); node != NULL; 2715 node = uu_list_next(list, node)) { 2716 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2717 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == 2718 NULL) 2719 uu_avl_insert(avl_tree, node, idx); 2720 } 2721 2722 uu_list_destroy(list); 2723 } 2724 2725 /* print & free node`s nvlist memory */ 2726 print_us(scripted, parseable, fields, cb.cb_max_typelen, 2727 cb.cb_max_namelen, cb.cb_max_usedlen, 2728 cb.cb_max_quotalen, B_TRUE, cb.cb_avl); 2729 2730 if (sortcol) 2731 zfs_free_sort_columns(sortcol); 2732 zfs_free_sort_columns(default_sortcol); 2733 2734 /* 2735 * Finally, clean up the AVL tree. 2736 */ 2737 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2738 nomem(); 2739 2740 while ((node = uu_avl_walk_next(walk)) != NULL) { 2741 uu_avl_remove(cb.cb_avl, node); 2742 free(node); 2743 } 2744 2745 uu_avl_walk_end(walk); 2746 uu_avl_destroy(avl_tree); 2747 uu_avl_pool_destroy(avl_pool); 2748 2749 return (error); 2750} 2751 2752/* 2753 * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...] 2754 * [-s property [-s property]...] [-S property [-S property]...] 2755 * <dataset> ... 2756 * 2757 * -r Recurse over all children 2758 * -d Limit recursion by depth. 2759 * -H Scripted mode; elide headers and separate columns by tabs 2760 * -o Control which fields to display. 2761 * -t Control which object types to display. 2762 * -s Specify sort columns, descending order. 2763 * -S Specify sort columns, ascending order. 2764 * 2765 * When given no arguments, lists all filesystems in the system. 2766 * Otherwise, list the specified datasets, optionally recursing down them if 2767 * '-r' is specified. 2768 */ 2769typedef struct list_cbdata { 2770 boolean_t cb_first; 2771 boolean_t cb_scripted; 2772 zprop_list_t *cb_proplist; 2773} list_cbdata_t; 2774 2775/* 2776 * Given a list of columns to display, output appropriate headers for each one. 2777 */ 2778static void 2779print_header(zprop_list_t *pl) 2780{ 2781 char headerbuf[ZFS_MAXPROPLEN]; 2782 const char *header; 2783 int i; 2784 boolean_t first = B_TRUE; 2785 boolean_t right_justify; 2786 2787 for (; pl != NULL; pl = pl->pl_next) { 2788 if (!first) { 2789 (void) printf(" "); 2790 } else { 2791 first = B_FALSE; 2792 } 2793 2794 right_justify = B_FALSE; 2795 if (pl->pl_prop != ZPROP_INVAL) { 2796 header = zfs_prop_column_name(pl->pl_prop); 2797 right_justify = zfs_prop_align_right(pl->pl_prop); 2798 } else { 2799 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2800 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2801 headerbuf[i] = '\0'; 2802 header = headerbuf; 2803 } 2804 2805 if (pl->pl_next == NULL && !right_justify) 2806 (void) printf("%s", header); 2807 else if (right_justify) 2808 (void) printf("%*s", pl->pl_width, header); 2809 else 2810 (void) printf("%-*s", pl->pl_width, header); 2811 } 2812 2813 (void) printf("\n"); 2814} 2815 2816/* 2817 * Given a dataset and a list of fields, print out all the properties according 2818 * to the described layout. 2819 */ 2820static void 2821print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted) 2822{ 2823 boolean_t first = B_TRUE; 2824 char property[ZFS_MAXPROPLEN]; 2825 nvlist_t *userprops = zfs_get_user_props(zhp); 2826 nvlist_t *propval; 2827 char *propstr; 2828 boolean_t right_justify; 2829 int width; 2830 2831 for (; pl != NULL; pl = pl->pl_next) { 2832 if (!first) { 2833 if (scripted) 2834 (void) printf("\t"); 2835 else 2836 (void) printf(" "); 2837 } else { 2838 first = B_FALSE; 2839 } 2840 2841 if (pl->pl_prop == ZFS_PROP_NAME) { 2842 (void) strlcpy(property, zfs_get_name(zhp), 2843 sizeof(property)); 2844 propstr = property; 2845 right_justify = zfs_prop_align_right(pl->pl_prop); 2846 } else if (pl->pl_prop != ZPROP_INVAL) { 2847 if (zfs_prop_get(zhp, pl->pl_prop, property, 2848 sizeof (property), NULL, NULL, 0, B_FALSE) != 0) 2849 propstr = "-"; 2850 else 2851 propstr = property; 2852 2853 right_justify = zfs_prop_align_right(pl->pl_prop); 2854 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2855 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2856 property, sizeof (property), B_FALSE) != 0) 2857 propstr = "-"; 2858 else 2859 propstr = property; 2860 right_justify = B_TRUE; 2861 } else if (zfs_prop_written(pl->pl_user_prop)) { 2862 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2863 property, sizeof (property), B_FALSE) != 0) 2864 propstr = "-"; 2865 else 2866 propstr = property; 2867 right_justify = B_TRUE; 2868 } else { 2869 if (nvlist_lookup_nvlist(userprops, 2870 pl->pl_user_prop, &propval) != 0) 2871 propstr = "-"; 2872 else 2873 verify(nvlist_lookup_string(propval, 2874 ZPROP_VALUE, &propstr) == 0); 2875 right_justify = B_FALSE; 2876 } 2877 2878 width = pl->pl_width; 2879 2880 /* 2881 * If this is being called in scripted mode, or if this is the 2882 * last column and it is left-justified, don't include a width 2883 * format specifier. 2884 */ 2885 if (scripted || (pl->pl_next == NULL && !right_justify)) 2886 (void) printf("%s", propstr); 2887 else if (right_justify) 2888 (void) printf("%*s", width, propstr); 2889 else 2890 (void) printf("%-*s", width, propstr); 2891 } 2892 2893 (void) printf("\n"); 2894} 2895 2896/* 2897 * Generic callback function to list a dataset or snapshot. 2898 */ 2899static int 2900list_callback(zfs_handle_t *zhp, void *data) 2901{ 2902 list_cbdata_t *cbp = data; 2903 2904 if (cbp->cb_first) { 2905 if (!cbp->cb_scripted) 2906 print_header(cbp->cb_proplist); 2907 cbp->cb_first = B_FALSE; 2908 } 2909 2910 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted); 2911 2912 return (0); 2913} 2914 2915static int 2916zfs_do_list(int argc, char **argv) 2917{ 2918 int c; 2919 boolean_t scripted = B_FALSE; 2920 static char default_fields[] = 2921 "name,used,available,referenced,mountpoint"; 2922 int types = ZFS_TYPE_DATASET; 2923 boolean_t types_specified = B_FALSE; 2924 char *fields = NULL; 2925 list_cbdata_t cb = { 0 }; 2926 char *value; 2927 int limit = 0; 2928 int ret; 2929 zfs_sort_column_t *sortcol = NULL; 2930 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 2931 2932 /* check options */ 2933 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) { 2934 switch (c) { 2935 case 'o': 2936 fields = optarg; 2937 break; 2938 case 'd': 2939 limit = parse_depth(optarg, &flags); 2940 break; 2941 case 'r': 2942 flags |= ZFS_ITER_RECURSE; 2943 break; 2944 case 'H': 2945 scripted = B_TRUE; 2946 break; 2947 case 's': 2948 if (zfs_add_sort_column(&sortcol, optarg, 2949 B_FALSE) != 0) { 2950 (void) fprintf(stderr, 2951 gettext("invalid property '%s'\n"), optarg); 2952 usage(B_FALSE); 2953 } 2954 break; 2955 case 'S': 2956 if (zfs_add_sort_column(&sortcol, optarg, 2957 B_TRUE) != 0) { 2958 (void) fprintf(stderr, 2959 gettext("invalid property '%s'\n"), optarg); 2960 usage(B_FALSE); 2961 } 2962 break; 2963 case 't': 2964 types = 0; 2965 types_specified = B_TRUE; 2966 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 2967 while (*optarg != '\0') { 2968 static char *type_subopts[] = { "filesystem", 2969 "volume", "snapshot", "all", NULL }; 2970 2971 switch (getsubopt(&optarg, type_subopts, 2972 &value)) { 2973 case 0: 2974 types |= ZFS_TYPE_FILESYSTEM; 2975 break; 2976 case 1: 2977 types |= ZFS_TYPE_VOLUME; 2978 break; 2979 case 2: 2980 types |= ZFS_TYPE_SNAPSHOT; 2981 break; 2982 case 3: 2983 types = ZFS_TYPE_DATASET; 2984 break; 2985 2986 default: 2987 (void) fprintf(stderr, 2988 gettext("invalid type '%s'\n"), 2989 value); 2990 usage(B_FALSE); 2991 } 2992 } 2993 break; 2994 case ':': 2995 (void) fprintf(stderr, gettext("missing argument for " 2996 "'%c' option\n"), optopt); 2997 usage(B_FALSE); 2998 break; 2999 case '?': 3000 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3001 optopt); 3002 usage(B_FALSE); 3003 } 3004 } 3005 3006 argc -= optind; 3007 argv += optind; 3008 3009 if (fields == NULL) 3010 fields = default_fields; 3011 3012 /* 3013 * If we are only going to list snapshot names and sort by name, 3014 * then we can use faster version. 3015 */ 3016 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3017 flags |= ZFS_ITER_SIMPLE; 3018 3019 /* 3020 * If "-o space" and no types were specified, don't display snapshots. 3021 */ 3022 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3023 types &= ~ZFS_TYPE_SNAPSHOT; 3024 3025 /* 3026 * If the user specifies '-o all', the zprop_get_list() doesn't 3027 * normally include the name of the dataset. For 'zfs list', we always 3028 * want this property to be first. 3029 */ 3030 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3031 != 0) 3032 usage(B_FALSE); 3033 3034 cb.cb_scripted = scripted; 3035 cb.cb_first = B_TRUE; 3036 3037 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3038 limit, list_callback, &cb); 3039 3040 zprop_free_list(cb.cb_proplist); 3041 zfs_free_sort_columns(sortcol); 3042 3043 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3044 (void) printf(gettext("no datasets available\n")); 3045 3046 return (ret); 3047} 3048 3049/* 3050 * zfs rename <fs | snap | vol> <fs | snap | vol> 3051 * zfs rename -p <fs | vol> <fs | vol> 3052 * zfs rename -r <snap> <snap> 3053 * zfs rename -u [-p] <fs> <fs> 3054 * 3055 * Renames the given dataset to another of the same type. 3056 * 3057 * The '-p' flag creates all the non-existing ancestors of the target first. 3058 */ 3059/* ARGSUSED */ 3060static int 3061zfs_do_rename(int argc, char **argv) 3062{ 3063 zfs_handle_t *zhp; 3064 renameflags_t flags = { 0 }; 3065 int c, ret, types; 3066 boolean_t parents = B_FALSE; 3067 3068 /* check options */ 3069 while ((c = getopt(argc, argv, "pru")) != -1) { 3070 switch (c) { 3071 case 'p': 3072 parents = B_TRUE; 3073 break; 3074 case 'r': 3075 flags.recurse = B_TRUE; 3076 break; 3077 case 'u': 3078 flags.nounmount = B_TRUE; 3079 break; 3080 case '?': 3081 default: 3082 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3083 optopt); 3084 usage(B_FALSE); 3085 } 3086 } 3087 3088 argc -= optind; 3089 argv += optind; 3090 3091 /* check number of arguments */ 3092 if (argc < 1) { 3093 (void) fprintf(stderr, gettext("missing source dataset " 3094 "argument\n")); 3095 usage(B_FALSE); 3096 } 3097 if (argc < 2) { 3098 (void) fprintf(stderr, gettext("missing target dataset " 3099 "argument\n")); 3100 usage(B_FALSE); 3101 } 3102 if (argc > 2) { 3103 (void) fprintf(stderr, gettext("too many arguments\n")); 3104 usage(B_FALSE); 3105 } 3106 3107 if (flags.recurse && parents) { 3108 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3109 "exclusive\n")); 3110 usage(B_FALSE); 3111 } 3112 3113 if (flags.recurse && strchr(argv[0], '@') == 0) { 3114 (void) fprintf(stderr, gettext("source dataset for recursive " 3115 "rename must be a snapshot\n")); 3116 usage(B_FALSE); 3117 } 3118 3119 if (flags.nounmount && parents) { 3120 (void) fprintf(stderr, gettext("-u and -r options are mutually " 3121 "exclusive\n")); 3122 usage(B_FALSE); 3123 } 3124 3125 if (flags.nounmount) 3126 types = ZFS_TYPE_FILESYSTEM; 3127 else if (parents) 3128 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3129 else 3130 types = ZFS_TYPE_DATASET; 3131 3132 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3133 return (1); 3134 3135 /* If we were asked and the name looks good, try to create ancestors. */ 3136 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3137 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3138 zfs_close(zhp); 3139 return (1); 3140 } 3141 3142 ret = (zfs_rename(zhp, argv[1], flags) != 0); 3143 3144 zfs_close(zhp); 3145 return (ret); 3146} 3147 3148/* 3149 * zfs promote <fs> 3150 * 3151 * Promotes the given clone fs to be the parent 3152 */ 3153/* ARGSUSED */ 3154static int 3155zfs_do_promote(int argc, char **argv) 3156{ 3157 zfs_handle_t *zhp; 3158 int ret; 3159 3160 /* check options */ 3161 if (argc > 1 && argv[1][0] == '-') { 3162 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3163 argv[1][1]); 3164 usage(B_FALSE); 3165 } 3166 3167 /* check number of arguments */ 3168 if (argc < 2) { 3169 (void) fprintf(stderr, gettext("missing clone filesystem" 3170 " argument\n")); 3171 usage(B_FALSE); 3172 } 3173 if (argc > 2) { 3174 (void) fprintf(stderr, gettext("too many arguments\n")); 3175 usage(B_FALSE); 3176 } 3177 3178 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3179 if (zhp == NULL) 3180 return (1); 3181 3182 ret = (zfs_promote(zhp) != 0); 3183 3184 3185 zfs_close(zhp); 3186 return (ret); 3187} 3188 3189/* 3190 * zfs rollback [-rRf] <snapshot> 3191 * 3192 * -r Delete any intervening snapshots before doing rollback 3193 * -R Delete any snapshots and their clones 3194 * -f ignored for backwards compatability 3195 * 3196 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3197 * since then and making it the active dataset. If more recent snapshots exist, 3198 * the command will complain unless the '-r' flag is given. 3199 */ 3200typedef struct rollback_cbdata { 3201 uint64_t cb_create; 3202 boolean_t cb_first; 3203 int cb_doclones; 3204 char *cb_target; 3205 int cb_error; 3206 boolean_t cb_recurse; 3207 boolean_t cb_dependent; 3208} rollback_cbdata_t; 3209 3210/* 3211 * Report any snapshots more recent than the one specified. Used when '-r' is 3212 * not specified. We reuse this same callback for the snapshot dependents - if 3213 * 'cb_dependent' is set, then this is a dependent and we should report it 3214 * without checking the transaction group. 3215 */ 3216static int 3217rollback_check(zfs_handle_t *zhp, void *data) 3218{ 3219 rollback_cbdata_t *cbp = data; 3220 3221 if (cbp->cb_doclones) { 3222 zfs_close(zhp); 3223 return (0); 3224 } 3225 3226 if (!cbp->cb_dependent) { 3227 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 && 3228 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3229 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3230 cbp->cb_create) { 3231 3232 if (cbp->cb_first && !cbp->cb_recurse) { 3233 (void) fprintf(stderr, gettext("cannot " 3234 "rollback to '%s': more recent snapshots " 3235 "exist\n"), 3236 cbp->cb_target); 3237 (void) fprintf(stderr, gettext("use '-r' to " 3238 "force deletion of the following " 3239 "snapshots:\n")); 3240 cbp->cb_first = 0; 3241 cbp->cb_error = 1; 3242 } 3243 3244 if (cbp->cb_recurse) { 3245 cbp->cb_dependent = B_TRUE; 3246 if (zfs_iter_dependents(zhp, B_TRUE, 3247 rollback_check, cbp) != 0) { 3248 zfs_close(zhp); 3249 return (-1); 3250 } 3251 cbp->cb_dependent = B_FALSE; 3252 } else { 3253 (void) fprintf(stderr, "%s\n", 3254 zfs_get_name(zhp)); 3255 } 3256 } 3257 } else { 3258 if (cbp->cb_first && cbp->cb_recurse) { 3259 (void) fprintf(stderr, gettext("cannot rollback to " 3260 "'%s': clones of previous snapshots exist\n"), 3261 cbp->cb_target); 3262 (void) fprintf(stderr, gettext("use '-R' to " 3263 "force deletion of the following clones and " 3264 "dependents:\n")); 3265 cbp->cb_first = 0; 3266 cbp->cb_error = 1; 3267 } 3268 3269 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3270 } 3271 3272 zfs_close(zhp); 3273 return (0); 3274} 3275 3276static int 3277zfs_do_rollback(int argc, char **argv) 3278{ 3279 int ret; 3280 int c; 3281 boolean_t force = B_FALSE; 3282 rollback_cbdata_t cb = { 0 }; 3283 zfs_handle_t *zhp, *snap; 3284 char parentname[ZFS_MAXNAMELEN]; 3285 char *delim; 3286 3287 /* check options */ 3288 while ((c = getopt(argc, argv, "rRf")) != -1) { 3289 switch (c) { 3290 case 'r': 3291 cb.cb_recurse = 1; 3292 break; 3293 case 'R': 3294 cb.cb_recurse = 1; 3295 cb.cb_doclones = 1; 3296 break; 3297 case 'f': 3298 force = B_TRUE; 3299 break; 3300 case '?': 3301 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3302 optopt); 3303 usage(B_FALSE); 3304 } 3305 } 3306 3307 argc -= optind; 3308 argv += optind; 3309 3310 /* check number of arguments */ 3311 if (argc < 1) { 3312 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3313 usage(B_FALSE); 3314 } 3315 if (argc > 1) { 3316 (void) fprintf(stderr, gettext("too many arguments\n")); 3317 usage(B_FALSE); 3318 } 3319 3320 /* open the snapshot */ 3321 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3322 return (1); 3323 3324 /* open the parent dataset */ 3325 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3326 verify((delim = strrchr(parentname, '@')) != NULL); 3327 *delim = '\0'; 3328 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3329 zfs_close(snap); 3330 return (1); 3331 } 3332 3333 /* 3334 * Check for more recent snapshots and/or clones based on the presence 3335 * of '-r' and '-R'. 3336 */ 3337 cb.cb_target = argv[0]; 3338 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3339 cb.cb_first = B_TRUE; 3340 cb.cb_error = 0; 3341 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0) 3342 goto out; 3343 3344 if ((ret = cb.cb_error) != 0) 3345 goto out; 3346 3347 /* 3348 * Rollback parent to the given snapshot. 3349 */ 3350 ret = zfs_rollback(zhp, snap, force); 3351 3352out: 3353 zfs_close(snap); 3354 zfs_close(zhp); 3355 3356 if (ret == 0) 3357 return (0); 3358 else 3359 return (1); 3360} 3361 3362/* 3363 * zfs set property=value { fs | snap | vol } ... 3364 * 3365 * Sets the given property for all datasets specified on the command line. 3366 */ 3367typedef struct set_cbdata { 3368 char *cb_propname; 3369 char *cb_value; 3370} set_cbdata_t; 3371 3372static int 3373set_callback(zfs_handle_t *zhp, void *data) 3374{ 3375 set_cbdata_t *cbp = data; 3376 3377 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3378 switch (libzfs_errno(g_zfs)) { 3379 case EZFS_MOUNTFAILED: 3380 (void) fprintf(stderr, gettext("property may be set " 3381 "but unable to remount filesystem\n")); 3382 break; 3383 case EZFS_SHARENFSFAILED: 3384 (void) fprintf(stderr, gettext("property may be set " 3385 "but unable to reshare filesystem\n")); 3386 break; 3387 } 3388 return (1); 3389 } 3390 return (0); 3391} 3392 3393static int 3394zfs_do_set(int argc, char **argv) 3395{ 3396 set_cbdata_t cb; 3397 int ret; 3398 3399 /* check for options */ 3400 if (argc > 1 && argv[1][0] == '-') { 3401 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3402 argv[1][1]); 3403 usage(B_FALSE); 3404 } 3405 3406 /* check number of arguments */ 3407 if (argc < 2) { 3408 (void) fprintf(stderr, gettext("missing property=value " 3409 "argument\n")); 3410 usage(B_FALSE); 3411 } 3412 if (argc < 3) { 3413 (void) fprintf(stderr, gettext("missing dataset name\n")); 3414 usage(B_FALSE); 3415 } 3416 3417 /* validate property=value argument */ 3418 cb.cb_propname = argv[1]; 3419 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3420 (cb.cb_value[1] == '\0')) { 3421 (void) fprintf(stderr, gettext("missing value in " 3422 "property=value argument\n")); 3423 usage(B_FALSE); 3424 } 3425 3426 *cb.cb_value = '\0'; 3427 cb.cb_value++; 3428 3429 if (*cb.cb_propname == '\0') { 3430 (void) fprintf(stderr, 3431 gettext("missing property in property=value argument\n")); 3432 usage(B_FALSE); 3433 } 3434 3435 ret = zfs_for_each(argc - 2, argv + 2, 0, 3436 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3437 3438 return (ret); 3439} 3440 3441/* 3442 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3443 * 3444 * Creates a snapshot with the given name. While functionally equivalent to 3445 * 'zfs create', it is a separate command to differentiate intent. 3446 */ 3447static int 3448zfs_do_snapshot(int argc, char **argv) 3449{ 3450 boolean_t recursive = B_FALSE; 3451 int ret; 3452 char c; 3453 nvlist_t *props; 3454 3455 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3456 nomem(); 3457 3458 /* check options */ 3459 while ((c = getopt(argc, argv, "ro:")) != -1) { 3460 switch (c) { 3461 case 'o': 3462 if (parseprop(props)) 3463 return (1); 3464 break; 3465 case 'r': 3466 recursive = B_TRUE; 3467 break; 3468 case '?': 3469 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3470 optopt); 3471 goto usage; 3472 } 3473 } 3474 3475 argc -= optind; 3476 argv += optind; 3477 3478 /* check number of arguments */ 3479 if (argc < 1) { 3480 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3481 goto usage; 3482 } 3483 if (argc > 1) { 3484 (void) fprintf(stderr, gettext("too many arguments\n")); 3485 goto usage; 3486 } 3487 3488 ret = zfs_snapshot(g_zfs, argv[0], recursive, props); 3489 nvlist_free(props); 3490 if (ret && recursive) 3491 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3492 return (ret != 0); 3493 3494usage: 3495 nvlist_free(props); 3496 usage(B_FALSE); 3497 return (-1); 3498} 3499 3500/* 3501 * Send a backup stream to stdout. 3502 */ 3503static int 3504zfs_do_send(int argc, char **argv) 3505{ 3506 char *fromname = NULL; 3507 char *toname = NULL; 3508 char *cp; 3509 zfs_handle_t *zhp; 3510 sendflags_t flags = { 0 }; 3511 int c, err; 3512 nvlist_t *dbgnv = NULL; 3513 boolean_t extraverbose = B_FALSE; 3514 3515 /* check options */ 3516 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) { 3517 switch (c) { 3518 case 'i': 3519 if (fromname) 3520 usage(B_FALSE); 3521 fromname = optarg; 3522 break; 3523 case 'I': 3524 if (fromname) 3525 usage(B_FALSE); 3526 fromname = optarg; 3527 flags.doall = B_TRUE; 3528 break; 3529 case 'R': 3530 flags.replicate = B_TRUE; 3531 break; 3532 case 'p': 3533 flags.props = B_TRUE; 3534 break; 3535 case 'P': 3536 flags.parsable = B_TRUE; 3537 flags.verbose = B_TRUE; 3538 break; 3539 case 'v': 3540 if (flags.verbose) 3541 extraverbose = B_TRUE; 3542 flags.verbose = B_TRUE; 3543 break; 3544 case 'D': 3545 flags.dedup = B_TRUE; 3546 break; 3547 case 'n': 3548 flags.dryrun = B_TRUE; 3549 break; 3550 case ':': 3551 (void) fprintf(stderr, gettext("missing argument for " 3552 "'%c' option\n"), optopt); 3553 usage(B_FALSE); 3554 break; 3555 case '?': 3556 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3557 optopt); 3558 usage(B_FALSE); 3559 } 3560 } 3561 3562 argc -= optind; 3563 argv += optind; 3564 3565 /* check number of arguments */ 3566 if (argc < 1) { 3567 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3568 usage(B_FALSE); 3569 } 3570 if (argc > 1) { 3571 (void) fprintf(stderr, gettext("too many arguments\n")); 3572 usage(B_FALSE); 3573 } 3574 3575 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3576 (void) fprintf(stderr, 3577 gettext("Error: Stream can not be written to a terminal.\n" 3578 "You must redirect standard output.\n")); 3579 return (1); 3580 } 3581 3582 cp = strchr(argv[0], '@'); 3583 if (cp == NULL) { 3584 (void) fprintf(stderr, 3585 gettext("argument must be a snapshot\n")); 3586 usage(B_FALSE); 3587 } 3588 *cp = '\0'; 3589 toname = cp + 1; 3590 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3591 if (zhp == NULL) 3592 return (1); 3593 3594 /* 3595 * If they specified the full path to the snapshot, chop off 3596 * everything except the short name of the snapshot, but special 3597 * case if they specify the origin. 3598 */ 3599 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3600 char origin[ZFS_MAXNAMELEN]; 3601 zprop_source_t src; 3602 3603 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3604 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3605 3606 if (strcmp(origin, fromname) == 0) { 3607 fromname = NULL; 3608 flags.fromorigin = B_TRUE; 3609 } else { 3610 *cp = '\0'; 3611 if (cp != fromname && strcmp(argv[0], fromname)) { 3612 (void) fprintf(stderr, 3613 gettext("incremental source must be " 3614 "in same filesystem\n")); 3615 usage(B_FALSE); 3616 } 3617 fromname = cp + 1; 3618 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3619 (void) fprintf(stderr, 3620 gettext("invalid incremental source\n")); 3621 usage(B_FALSE); 3622 } 3623 } 3624 } 3625 3626 if (flags.replicate && fromname == NULL) 3627 flags.doall = B_TRUE; 3628 3629 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3630 extraverbose ? &dbgnv : NULL); 3631 3632 if (extraverbose && dbgnv != NULL) { 3633 /* 3634 * dump_nvlist prints to stdout, but that's been 3635 * redirected to a file. Make it print to stderr 3636 * instead. 3637 */ 3638 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3639 dump_nvlist(dbgnv, 0); 3640 nvlist_free(dbgnv); 3641 } 3642 zfs_close(zhp); 3643 3644 return (err != 0); 3645} 3646 3647/* 3648 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3649 * 3650 * Restore a backup stream from stdin. 3651 */ 3652static int 3653zfs_do_receive(int argc, char **argv) 3654{ 3655 int c, err; 3656 recvflags_t flags = { 0 }; 3657 3658 /* check options */ 3659 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3660 switch (c) { 3661 case 'd': 3662 flags.isprefix = B_TRUE; 3663 break; 3664 case 'e': 3665 flags.isprefix = B_TRUE; 3666 flags.istail = B_TRUE; 3667 break; 3668 case 'n': 3669 flags.dryrun = B_TRUE; 3670 break; 3671 case 'u': 3672 flags.nomount = B_TRUE; 3673 break; 3674 case 'v': 3675 flags.verbose = B_TRUE; 3676 break; 3677 case 'F': 3678 flags.force = B_TRUE; 3679 break; 3680 case ':': 3681 (void) fprintf(stderr, gettext("missing argument for " 3682 "'%c' option\n"), optopt); 3683 usage(B_FALSE); 3684 break; 3685 case '?': 3686 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3687 optopt); 3688 usage(B_FALSE); 3689 } 3690 } 3691 3692 argc -= optind; 3693 argv += optind; 3694 3695 /* check number of arguments */ 3696 if (argc < 1) { 3697 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3698 usage(B_FALSE); 3699 } 3700 if (argc > 1) { 3701 (void) fprintf(stderr, gettext("too many arguments\n")); 3702 usage(B_FALSE); 3703 } 3704 3705 if (isatty(STDIN_FILENO)) { 3706 (void) fprintf(stderr, 3707 gettext("Error: Backup stream can not be read " 3708 "from a terminal.\n" 3709 "You must redirect standard input.\n")); 3710 return (1); 3711 } 3712 3713 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3714 3715 return (err != 0); 3716} 3717 3718/* 3719 * allow/unallow stuff 3720 */ 3721/* copied from zfs/sys/dsl_deleg.h */ 3722#define ZFS_DELEG_PERM_CREATE "create" 3723#define ZFS_DELEG_PERM_DESTROY "destroy" 3724#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3725#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3726#define ZFS_DELEG_PERM_CLONE "clone" 3727#define ZFS_DELEG_PERM_PROMOTE "promote" 3728#define ZFS_DELEG_PERM_RENAME "rename" 3729#define ZFS_DELEG_PERM_MOUNT "mount" 3730#define ZFS_DELEG_PERM_SHARE "share" 3731#define ZFS_DELEG_PERM_SEND "send" 3732#define ZFS_DELEG_PERM_RECEIVE "receive" 3733#define ZFS_DELEG_PERM_ALLOW "allow" 3734#define ZFS_DELEG_PERM_USERPROP "userprop" 3735#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3736#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3737#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3738#define ZFS_DELEG_PERM_USERUSED "userused" 3739#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3740#define ZFS_DELEG_PERM_HOLD "hold" 3741#define ZFS_DELEG_PERM_RELEASE "release" 3742#define ZFS_DELEG_PERM_DIFF "diff" 3743 3744#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3745 3746static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3747 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3748 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3749 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3750 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3751 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3752 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3753 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3754 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3755 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3756 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3757 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3758 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3759 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3760 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3761 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3762 3763 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3764 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3765 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3766 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3767 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3768 { NULL, ZFS_DELEG_NOTE_NONE } 3769}; 3770 3771/* permission structure */ 3772typedef struct deleg_perm { 3773 zfs_deleg_who_type_t dp_who_type; 3774 const char *dp_name; 3775 boolean_t dp_local; 3776 boolean_t dp_descend; 3777} deleg_perm_t; 3778 3779/* */ 3780typedef struct deleg_perm_node { 3781 deleg_perm_t dpn_perm; 3782 3783 uu_avl_node_t dpn_avl_node; 3784} deleg_perm_node_t; 3785 3786typedef struct fs_perm fs_perm_t; 3787 3788/* permissions set */ 3789typedef struct who_perm { 3790 zfs_deleg_who_type_t who_type; 3791 const char *who_name; /* id */ 3792 char who_ug_name[256]; /* user/group name */ 3793 fs_perm_t *who_fsperm; /* uplink */ 3794 3795 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3796} who_perm_t; 3797 3798/* */ 3799typedef struct who_perm_node { 3800 who_perm_t who_perm; 3801 uu_avl_node_t who_avl_node; 3802} who_perm_node_t; 3803 3804typedef struct fs_perm_set fs_perm_set_t; 3805/* fs permissions */ 3806struct fs_perm { 3807 const char *fsp_name; 3808 3809 uu_avl_t *fsp_sc_avl; /* sets,create */ 3810 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 3811 3812 fs_perm_set_t *fsp_set; /* uplink */ 3813}; 3814 3815/* */ 3816typedef struct fs_perm_node { 3817 fs_perm_t fspn_fsperm; 3818 uu_avl_t *fspn_avl; 3819 3820 uu_list_node_t fspn_list_node; 3821} fs_perm_node_t; 3822 3823/* top level structure */ 3824struct fs_perm_set { 3825 uu_list_pool_t *fsps_list_pool; 3826 uu_list_t *fsps_list; /* list of fs_perms */ 3827 3828 uu_avl_pool_t *fsps_named_set_avl_pool; 3829 uu_avl_pool_t *fsps_who_perm_avl_pool; 3830 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 3831}; 3832 3833static inline const char * 3834deleg_perm_type(zfs_deleg_note_t note) 3835{ 3836 /* subcommands */ 3837 switch (note) { 3838 /* SUBCOMMANDS */ 3839 /* OTHER */ 3840 case ZFS_DELEG_NOTE_GROUPQUOTA: 3841 case ZFS_DELEG_NOTE_GROUPUSED: 3842 case ZFS_DELEG_NOTE_USERPROP: 3843 case ZFS_DELEG_NOTE_USERQUOTA: 3844 case ZFS_DELEG_NOTE_USERUSED: 3845 /* other */ 3846 return (gettext("other")); 3847 default: 3848 return (gettext("subcommand")); 3849 } 3850} 3851 3852static int inline 3853who_type2weight(zfs_deleg_who_type_t who_type) 3854{ 3855 int res; 3856 switch (who_type) { 3857 case ZFS_DELEG_NAMED_SET_SETS: 3858 case ZFS_DELEG_NAMED_SET: 3859 res = 0; 3860 break; 3861 case ZFS_DELEG_CREATE_SETS: 3862 case ZFS_DELEG_CREATE: 3863 res = 1; 3864 break; 3865 case ZFS_DELEG_USER_SETS: 3866 case ZFS_DELEG_USER: 3867 res = 2; 3868 break; 3869 case ZFS_DELEG_GROUP_SETS: 3870 case ZFS_DELEG_GROUP: 3871 res = 3; 3872 break; 3873 case ZFS_DELEG_EVERYONE_SETS: 3874 case ZFS_DELEG_EVERYONE: 3875 res = 4; 3876 break; 3877 default: 3878 res = -1; 3879 } 3880 3881 return (res); 3882} 3883 3884/* ARGSUSED */ 3885static int 3886who_perm_compare(const void *larg, const void *rarg, void *unused) 3887{ 3888 const who_perm_node_t *l = larg; 3889 const who_perm_node_t *r = rarg; 3890 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 3891 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 3892 int lweight = who_type2weight(ltype); 3893 int rweight = who_type2weight(rtype); 3894 int res = lweight - rweight; 3895 if (res == 0) 3896 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 3897 ZFS_MAX_DELEG_NAME-1); 3898 3899 if (res == 0) 3900 return (0); 3901 if (res > 0) 3902 return (1); 3903 else 3904 return (-1); 3905} 3906 3907/* ARGSUSED */ 3908static int 3909deleg_perm_compare(const void *larg, const void *rarg, void *unused) 3910{ 3911 const deleg_perm_node_t *l = larg; 3912 const deleg_perm_node_t *r = rarg; 3913 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 3914 ZFS_MAX_DELEG_NAME-1); 3915 3916 if (res == 0) 3917 return (0); 3918 3919 if (res > 0) 3920 return (1); 3921 else 3922 return (-1); 3923} 3924 3925static inline void 3926fs_perm_set_init(fs_perm_set_t *fspset) 3927{ 3928 bzero(fspset, sizeof (fs_perm_set_t)); 3929 3930 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 3931 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 3932 NULL, UU_DEFAULT)) == NULL) 3933 nomem(); 3934 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 3935 UU_DEFAULT)) == NULL) 3936 nomem(); 3937 3938 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 3939 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 3940 who_perm_node_t, who_avl_node), who_perm_compare, 3941 UU_DEFAULT)) == NULL) 3942 nomem(); 3943 3944 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 3945 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 3946 who_perm_node_t, who_avl_node), who_perm_compare, 3947 UU_DEFAULT)) == NULL) 3948 nomem(); 3949 3950 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 3951 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 3952 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 3953 == NULL) 3954 nomem(); 3955} 3956 3957static inline void fs_perm_fini(fs_perm_t *); 3958static inline void who_perm_fini(who_perm_t *); 3959 3960static inline void 3961fs_perm_set_fini(fs_perm_set_t *fspset) 3962{ 3963 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 3964 3965 while (node != NULL) { 3966 fs_perm_node_t *next_node = 3967 uu_list_next(fspset->fsps_list, node); 3968 fs_perm_t *fsperm = &node->fspn_fsperm; 3969 fs_perm_fini(fsperm); 3970 uu_list_remove(fspset->fsps_list, node); 3971 free(node); 3972 node = next_node; 3973 } 3974 3975 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 3976 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 3977 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 3978} 3979 3980static inline void 3981deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 3982 const char *name) 3983{ 3984 deleg_perm->dp_who_type = type; 3985 deleg_perm->dp_name = name; 3986} 3987 3988static inline void 3989who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 3990 zfs_deleg_who_type_t type, const char *name) 3991{ 3992 uu_avl_pool_t *pool; 3993 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 3994 3995 bzero(who_perm, sizeof (who_perm_t)); 3996 3997 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 3998 UU_DEFAULT)) == NULL) 3999 nomem(); 4000 4001 who_perm->who_type = type; 4002 who_perm->who_name = name; 4003 who_perm->who_fsperm = fsperm; 4004} 4005 4006static inline void 4007who_perm_fini(who_perm_t *who_perm) 4008{ 4009 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4010 4011 while (node != NULL) { 4012 deleg_perm_node_t *next_node = 4013 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4014 4015 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4016 free(node); 4017 node = next_node; 4018 } 4019 4020 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4021} 4022 4023static inline void 4024fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4025{ 4026 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4027 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4028 4029 bzero(fsperm, sizeof (fs_perm_t)); 4030 4031 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4032 == NULL) 4033 nomem(); 4034 4035 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4036 == NULL) 4037 nomem(); 4038 4039 fsperm->fsp_set = fspset; 4040 fsperm->fsp_name = fsname; 4041} 4042 4043static inline void 4044fs_perm_fini(fs_perm_t *fsperm) 4045{ 4046 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4047 while (node != NULL) { 4048 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4049 node); 4050 who_perm_t *who_perm = &node->who_perm; 4051 who_perm_fini(who_perm); 4052 uu_avl_remove(fsperm->fsp_sc_avl, node); 4053 free(node); 4054 node = next_node; 4055 } 4056 4057 node = uu_avl_first(fsperm->fsp_uge_avl); 4058 while (node != NULL) { 4059 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4060 node); 4061 who_perm_t *who_perm = &node->who_perm; 4062 who_perm_fini(who_perm); 4063 uu_avl_remove(fsperm->fsp_uge_avl, node); 4064 free(node); 4065 node = next_node; 4066 } 4067 4068 uu_avl_destroy(fsperm->fsp_sc_avl); 4069 uu_avl_destroy(fsperm->fsp_uge_avl); 4070} 4071 4072static void inline 4073set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4074 zfs_deleg_who_type_t who_type, const char *name, char locality) 4075{ 4076 uu_avl_index_t idx = 0; 4077 4078 deleg_perm_node_t *found_node = NULL; 4079 deleg_perm_t *deleg_perm = &node->dpn_perm; 4080 4081 deleg_perm_init(deleg_perm, who_type, name); 4082 4083 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4084 == NULL) 4085 uu_avl_insert(avl, node, idx); 4086 else { 4087 node = found_node; 4088 deleg_perm = &node->dpn_perm; 4089 } 4090 4091 4092 switch (locality) { 4093 case ZFS_DELEG_LOCAL: 4094 deleg_perm->dp_local = B_TRUE; 4095 break; 4096 case ZFS_DELEG_DESCENDENT: 4097 deleg_perm->dp_descend = B_TRUE; 4098 break; 4099 case ZFS_DELEG_NA: 4100 break; 4101 default: 4102 assert(B_FALSE); /* invalid locality */ 4103 } 4104} 4105 4106static inline int 4107parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4108{ 4109 nvpair_t *nvp = NULL; 4110 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4111 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4112 zfs_deleg_who_type_t who_type = who_perm->who_type; 4113 4114 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4115 const char *name = nvpair_name(nvp); 4116 data_type_t type = nvpair_type(nvp); 4117 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4118 deleg_perm_node_t *node = 4119 safe_malloc(sizeof (deleg_perm_node_t)); 4120 4121 assert(type == DATA_TYPE_BOOLEAN); 4122 4123 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4124 set_deleg_perm_node(avl, node, who_type, name, locality); 4125 } 4126 4127 return (0); 4128} 4129 4130static inline int 4131parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4132{ 4133 nvpair_t *nvp = NULL; 4134 fs_perm_set_t *fspset = fsperm->fsp_set; 4135 4136 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4137 nvlist_t *nvl2 = NULL; 4138 const char *name = nvpair_name(nvp); 4139 uu_avl_t *avl = NULL; 4140 uu_avl_pool_t *avl_pool; 4141 zfs_deleg_who_type_t perm_type = name[0]; 4142 char perm_locality = name[1]; 4143 const char *perm_name = name + 3; 4144 boolean_t is_set = B_TRUE; 4145 who_perm_t *who_perm = NULL; 4146 4147 assert('$' == name[2]); 4148 4149 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4150 return (-1); 4151 4152 switch (perm_type) { 4153 case ZFS_DELEG_CREATE: 4154 case ZFS_DELEG_CREATE_SETS: 4155 case ZFS_DELEG_NAMED_SET: 4156 case ZFS_DELEG_NAMED_SET_SETS: 4157 avl_pool = fspset->fsps_named_set_avl_pool; 4158 avl = fsperm->fsp_sc_avl; 4159 break; 4160 case ZFS_DELEG_USER: 4161 case ZFS_DELEG_USER_SETS: 4162 case ZFS_DELEG_GROUP: 4163 case ZFS_DELEG_GROUP_SETS: 4164 case ZFS_DELEG_EVERYONE: 4165 case ZFS_DELEG_EVERYONE_SETS: 4166 avl_pool = fspset->fsps_who_perm_avl_pool; 4167 avl = fsperm->fsp_uge_avl; 4168 break; 4169 } 4170 4171 if (is_set) { 4172 who_perm_node_t *found_node = NULL; 4173 who_perm_node_t *node = safe_malloc( 4174 sizeof (who_perm_node_t)); 4175 who_perm = &node->who_perm; 4176 uu_avl_index_t idx = 0; 4177 4178 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4179 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4180 4181 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4182 == NULL) { 4183 if (avl == fsperm->fsp_uge_avl) { 4184 uid_t rid = 0; 4185 struct passwd *p = NULL; 4186 struct group *g = NULL; 4187 const char *nice_name = NULL; 4188 4189 switch (perm_type) { 4190 case ZFS_DELEG_USER_SETS: 4191 case ZFS_DELEG_USER: 4192 rid = atoi(perm_name); 4193 p = getpwuid(rid); 4194 if (p) 4195 nice_name = p->pw_name; 4196 break; 4197 case ZFS_DELEG_GROUP_SETS: 4198 case ZFS_DELEG_GROUP: 4199 rid = atoi(perm_name); 4200 g = getgrgid(rid); 4201 if (g) 4202 nice_name = g->gr_name; 4203 break; 4204 } 4205 4206 if (nice_name != NULL) 4207 (void) strlcpy( 4208 node->who_perm.who_ug_name, 4209 nice_name, 256); 4210 } 4211 4212 uu_avl_insert(avl, node, idx); 4213 } else { 4214 node = found_node; 4215 who_perm = &node->who_perm; 4216 } 4217 } 4218 4219 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4220 } 4221 4222 return (0); 4223} 4224 4225static inline int 4226parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4227{ 4228 nvpair_t *nvp = NULL; 4229 uu_avl_index_t idx = 0; 4230 4231 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4232 nvlist_t *nvl2 = NULL; 4233 const char *fsname = nvpair_name(nvp); 4234 data_type_t type = nvpair_type(nvp); 4235 fs_perm_t *fsperm = NULL; 4236 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4237 if (node == NULL) 4238 nomem(); 4239 4240 fsperm = &node->fspn_fsperm; 4241 4242 assert(DATA_TYPE_NVLIST == type); 4243 4244 uu_list_node_init(node, &node->fspn_list_node, 4245 fspset->fsps_list_pool); 4246 4247 idx = uu_list_numnodes(fspset->fsps_list); 4248 fs_perm_init(fsperm, fspset, fsname); 4249 4250 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4251 return (-1); 4252 4253 (void) parse_fs_perm(fsperm, nvl2); 4254 4255 uu_list_insert(fspset->fsps_list, node, idx); 4256 } 4257 4258 return (0); 4259} 4260 4261static inline const char * 4262deleg_perm_comment(zfs_deleg_note_t note) 4263{ 4264 const char *str = ""; 4265 4266 /* subcommands */ 4267 switch (note) { 4268 /* SUBCOMMANDS */ 4269 case ZFS_DELEG_NOTE_ALLOW: 4270 str = gettext("Must also have the permission that is being" 4271 "\n\t\t\t\tallowed"); 4272 break; 4273 case ZFS_DELEG_NOTE_CLONE: 4274 str = gettext("Must also have the 'create' ability and 'mount'" 4275 "\n\t\t\t\tability in the origin file system"); 4276 break; 4277 case ZFS_DELEG_NOTE_CREATE: 4278 str = gettext("Must also have the 'mount' ability"); 4279 break; 4280 case ZFS_DELEG_NOTE_DESTROY: 4281 str = gettext("Must also have the 'mount' ability"); 4282 break; 4283 case ZFS_DELEG_NOTE_DIFF: 4284 str = gettext("Allows lookup of paths within a dataset;" 4285 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4286 "\n\t\t\t\tin order to use zfs diff"); 4287 break; 4288 case ZFS_DELEG_NOTE_HOLD: 4289 str = gettext("Allows adding a user hold to a snapshot"); 4290 break; 4291 case ZFS_DELEG_NOTE_MOUNT: 4292 str = gettext("Allows mount/umount of ZFS datasets"); 4293 break; 4294 case ZFS_DELEG_NOTE_PROMOTE: 4295 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4296 " 'promote' ability in the origin file system"); 4297 break; 4298 case ZFS_DELEG_NOTE_RECEIVE: 4299 str = gettext("Must also have the 'mount' and 'create'" 4300 " ability"); 4301 break; 4302 case ZFS_DELEG_NOTE_RELEASE: 4303 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4304 "might destroy the snapshot"); 4305 break; 4306 case ZFS_DELEG_NOTE_RENAME: 4307 str = gettext("Must also have the 'mount' and 'create'" 4308 "\n\t\t\t\tability in the new parent"); 4309 break; 4310 case ZFS_DELEG_NOTE_ROLLBACK: 4311 str = gettext(""); 4312 break; 4313 case ZFS_DELEG_NOTE_SEND: 4314 str = gettext(""); 4315 break; 4316 case ZFS_DELEG_NOTE_SHARE: 4317 str = gettext("Allows sharing file systems over NFS or SMB" 4318 "\n\t\t\t\tprotocols"); 4319 break; 4320 case ZFS_DELEG_NOTE_SNAPSHOT: 4321 str = gettext(""); 4322 break; 4323/* 4324 * case ZFS_DELEG_NOTE_VSCAN: 4325 * str = gettext(""); 4326 * break; 4327 */ 4328 /* OTHER */ 4329 case ZFS_DELEG_NOTE_GROUPQUOTA: 4330 str = gettext("Allows accessing any groupquota@... property"); 4331 break; 4332 case ZFS_DELEG_NOTE_GROUPUSED: 4333 str = gettext("Allows reading any groupused@... property"); 4334 break; 4335 case ZFS_DELEG_NOTE_USERPROP: 4336 str = gettext("Allows changing any user property"); 4337 break; 4338 case ZFS_DELEG_NOTE_USERQUOTA: 4339 str = gettext("Allows accessing any userquota@... property"); 4340 break; 4341 case ZFS_DELEG_NOTE_USERUSED: 4342 str = gettext("Allows reading any userused@... property"); 4343 break; 4344 /* other */ 4345 default: 4346 str = ""; 4347 } 4348 4349 return (str); 4350} 4351 4352struct allow_opts { 4353 boolean_t local; 4354 boolean_t descend; 4355 boolean_t user; 4356 boolean_t group; 4357 boolean_t everyone; 4358 boolean_t create; 4359 boolean_t set; 4360 boolean_t recursive; /* unallow only */ 4361 boolean_t prt_usage; 4362 4363 boolean_t prt_perms; 4364 char *who; 4365 char *perms; 4366 const char *dataset; 4367}; 4368 4369static inline int 4370prop_cmp(const void *a, const void *b) 4371{ 4372 const char *str1 = *(const char **)a; 4373 const char *str2 = *(const char **)b; 4374 return (strcmp(str1, str2)); 4375} 4376 4377static void 4378allow_usage(boolean_t un, boolean_t requested, const char *msg) 4379{ 4380 const char *opt_desc[] = { 4381 "-h", gettext("show this help message and exit"), 4382 "-l", gettext("set permission locally"), 4383 "-d", gettext("set permission for descents"), 4384 "-u", gettext("set permission for user"), 4385 "-g", gettext("set permission for group"), 4386 "-e", gettext("set permission for everyone"), 4387 "-c", gettext("set create time permission"), 4388 "-s", gettext("define permission set"), 4389 /* unallow only */ 4390 "-r", gettext("remove permissions recursively"), 4391 }; 4392 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4393 size_t allow_size = unallow_size - 2; 4394 const char *props[ZFS_NUM_PROPS]; 4395 int i; 4396 size_t count = 0; 4397 FILE *fp = requested ? stdout : stderr; 4398 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4399 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4400 4401 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4402 HELP_ALLOW)); 4403 (void) fprintf(fp, gettext("Options:\n")); 4404 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4405 const char *opt = opt_desc[i++]; 4406 const char *optdsc = opt_desc[i]; 4407 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4408 } 4409 4410 (void) fprintf(fp, gettext("\nThe following permissions are " 4411 "supported:\n\n")); 4412 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4413 gettext("NOTES")); 4414 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4415 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4416 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4417 const char *perm_type = deleg_perm_type(perm_note); 4418 const char *perm_comment = deleg_perm_comment(perm_note); 4419 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4420 } 4421 4422 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4423 zprop_desc_t *pd = &pdtbl[i]; 4424 if (pd->pd_visible != B_TRUE) 4425 continue; 4426 4427 if (pd->pd_attr == PROP_READONLY) 4428 continue; 4429 4430 props[count++] = pd->pd_name; 4431 } 4432 props[count] = NULL; 4433 4434 qsort(props, count, sizeof (char *), prop_cmp); 4435 4436 for (i = 0; i < count; i++) 4437 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4438 4439 if (msg != NULL) 4440 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4441 4442 exit(requested ? 0 : 2); 4443} 4444 4445static inline const char * 4446munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4447 char **permsp) 4448{ 4449 if (un && argc == expected_argc - 1) 4450 *permsp = NULL; 4451 else if (argc == expected_argc) 4452 *permsp = argv[argc - 2]; 4453 else 4454 allow_usage(un, B_FALSE, 4455 gettext("wrong number of parameters\n")); 4456 4457 return (argv[argc - 1]); 4458} 4459 4460static void 4461parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4462{ 4463 int uge_sum = opts->user + opts->group + opts->everyone; 4464 int csuge_sum = opts->create + opts->set + uge_sum; 4465 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4466 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4467 4468 if (uge_sum > 1) 4469 allow_usage(un, B_FALSE, 4470 gettext("-u, -g, and -e are mutually exclusive\n")); 4471 4472 if (opts->prt_usage) 4473 if (argc == 0 && all_sum == 0) 4474 allow_usage(un, B_TRUE, NULL); 4475 else 4476 usage(B_FALSE); 4477 4478 if (opts->set) { 4479 if (csuge_sum > 1) 4480 allow_usage(un, B_FALSE, 4481 gettext("invalid options combined with -s\n")); 4482 4483 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4484 if (argv[0][0] != '@') 4485 allow_usage(un, B_FALSE, 4486 gettext("invalid set name: missing '@' prefix\n")); 4487 opts->who = argv[0]; 4488 } else if (opts->create) { 4489 if (ldcsuge_sum > 1) 4490 allow_usage(un, B_FALSE, 4491 gettext("invalid options combined with -c\n")); 4492 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4493 } else if (opts->everyone) { 4494 if (csuge_sum > 1) 4495 allow_usage(un, B_FALSE, 4496 gettext("invalid options combined with -e\n")); 4497 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4498 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4499 == 0) { 4500 opts->everyone = B_TRUE; 4501 argc--; 4502 argv++; 4503 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4504 } else if (argc == 1 && !un) { 4505 opts->prt_perms = B_TRUE; 4506 opts->dataset = argv[argc-1]; 4507 } else { 4508 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4509 opts->who = argv[0]; 4510 } 4511 4512 if (!opts->local && !opts->descend) { 4513 opts->local = B_TRUE; 4514 opts->descend = B_TRUE; 4515 } 4516} 4517 4518static void 4519store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4520 const char *who, char *perms, nvlist_t *top_nvl) 4521{ 4522 int i; 4523 char ld[2] = { '\0', '\0' }; 4524 char who_buf[ZFS_MAXNAMELEN+32]; 4525 char base_type; 4526 char set_type; 4527 nvlist_t *base_nvl = NULL; 4528 nvlist_t *set_nvl = NULL; 4529 nvlist_t *nvl; 4530 4531 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4532 nomem(); 4533 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4534 nomem(); 4535 4536 switch (type) { 4537 case ZFS_DELEG_NAMED_SET_SETS: 4538 case ZFS_DELEG_NAMED_SET: 4539 set_type = ZFS_DELEG_NAMED_SET_SETS; 4540 base_type = ZFS_DELEG_NAMED_SET; 4541 ld[0] = ZFS_DELEG_NA; 4542 break; 4543 case ZFS_DELEG_CREATE_SETS: 4544 case ZFS_DELEG_CREATE: 4545 set_type = ZFS_DELEG_CREATE_SETS; 4546 base_type = ZFS_DELEG_CREATE; 4547 ld[0] = ZFS_DELEG_NA; 4548 break; 4549 case ZFS_DELEG_USER_SETS: 4550 case ZFS_DELEG_USER: 4551 set_type = ZFS_DELEG_USER_SETS; 4552 base_type = ZFS_DELEG_USER; 4553 if (local) 4554 ld[0] = ZFS_DELEG_LOCAL; 4555 if (descend) 4556 ld[1] = ZFS_DELEG_DESCENDENT; 4557 break; 4558 case ZFS_DELEG_GROUP_SETS: 4559 case ZFS_DELEG_GROUP: 4560 set_type = ZFS_DELEG_GROUP_SETS; 4561 base_type = ZFS_DELEG_GROUP; 4562 if (local) 4563 ld[0] = ZFS_DELEG_LOCAL; 4564 if (descend) 4565 ld[1] = ZFS_DELEG_DESCENDENT; 4566 break; 4567 case ZFS_DELEG_EVERYONE_SETS: 4568 case ZFS_DELEG_EVERYONE: 4569 set_type = ZFS_DELEG_EVERYONE_SETS; 4570 base_type = ZFS_DELEG_EVERYONE; 4571 if (local) 4572 ld[0] = ZFS_DELEG_LOCAL; 4573 if (descend) 4574 ld[1] = ZFS_DELEG_DESCENDENT; 4575 } 4576 4577 if (perms != NULL) { 4578 char *curr = perms; 4579 char *end = curr + strlen(perms); 4580 4581 while (curr < end) { 4582 char *delim = strchr(curr, ','); 4583 if (delim == NULL) 4584 delim = end; 4585 else 4586 *delim = '\0'; 4587 4588 if (curr[0] == '@') 4589 nvl = set_nvl; 4590 else 4591 nvl = base_nvl; 4592 4593 (void) nvlist_add_boolean(nvl, curr); 4594 if (delim != end) 4595 *delim = ','; 4596 curr = delim + 1; 4597 } 4598 4599 for (i = 0; i < 2; i++) { 4600 char locality = ld[i]; 4601 if (locality == 0) 4602 continue; 4603 4604 if (!nvlist_empty(base_nvl)) { 4605 if (who != NULL) 4606 (void) snprintf(who_buf, 4607 sizeof (who_buf), "%c%c$%s", 4608 base_type, locality, who); 4609 else 4610 (void) snprintf(who_buf, 4611 sizeof (who_buf), "%c%c$", 4612 base_type, locality); 4613 4614 (void) nvlist_add_nvlist(top_nvl, who_buf, 4615 base_nvl); 4616 } 4617 4618 4619 if (!nvlist_empty(set_nvl)) { 4620 if (who != NULL) 4621 (void) snprintf(who_buf, 4622 sizeof (who_buf), "%c%c$%s", 4623 set_type, locality, who); 4624 else 4625 (void) snprintf(who_buf, 4626 sizeof (who_buf), "%c%c$", 4627 set_type, locality); 4628 4629 (void) nvlist_add_nvlist(top_nvl, who_buf, 4630 set_nvl); 4631 } 4632 } 4633 } else { 4634 for (i = 0; i < 2; i++) { 4635 char locality = ld[i]; 4636 if (locality == 0) 4637 continue; 4638 4639 if (who != NULL) 4640 (void) snprintf(who_buf, sizeof (who_buf), 4641 "%c%c$%s", base_type, locality, who); 4642 else 4643 (void) snprintf(who_buf, sizeof (who_buf), 4644 "%c%c$", base_type, locality); 4645 (void) nvlist_add_boolean(top_nvl, who_buf); 4646 4647 if (who != NULL) 4648 (void) snprintf(who_buf, sizeof (who_buf), 4649 "%c%c$%s", set_type, locality, who); 4650 else 4651 (void) snprintf(who_buf, sizeof (who_buf), 4652 "%c%c$", set_type, locality); 4653 (void) nvlist_add_boolean(top_nvl, who_buf); 4654 } 4655 } 4656} 4657 4658static int 4659construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4660{ 4661 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4662 nomem(); 4663 4664 if (opts->set) { 4665 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4666 opts->descend, opts->who, opts->perms, *nvlp); 4667 } else if (opts->create) { 4668 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4669 opts->descend, NULL, opts->perms, *nvlp); 4670 } else if (opts->everyone) { 4671 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4672 opts->descend, NULL, opts->perms, *nvlp); 4673 } else { 4674 char *curr = opts->who; 4675 char *end = curr + strlen(curr); 4676 4677 while (curr < end) { 4678 const char *who; 4679 zfs_deleg_who_type_t who_type; 4680 char *endch; 4681 char *delim = strchr(curr, ','); 4682 char errbuf[256]; 4683 char id[64]; 4684 struct passwd *p = NULL; 4685 struct group *g = NULL; 4686 4687 uid_t rid; 4688 if (delim == NULL) 4689 delim = end; 4690 else 4691 *delim = '\0'; 4692 4693 rid = (uid_t)strtol(curr, &endch, 0); 4694 if (opts->user) { 4695 who_type = ZFS_DELEG_USER; 4696 if (*endch != '\0') 4697 p = getpwnam(curr); 4698 else 4699 p = getpwuid(rid); 4700 4701 if (p != NULL) 4702 rid = p->pw_uid; 4703 else { 4704 (void) snprintf(errbuf, 256, gettext( 4705 "invalid user %s"), curr); 4706 allow_usage(un, B_TRUE, errbuf); 4707 } 4708 } else if (opts->group) { 4709 who_type = ZFS_DELEG_GROUP; 4710 if (*endch != '\0') 4711 g = getgrnam(curr); 4712 else 4713 g = getgrgid(rid); 4714 4715 if (g != NULL) 4716 rid = g->gr_gid; 4717 else { 4718 (void) snprintf(errbuf, 256, gettext( 4719 "invalid group %s"), curr); 4720 allow_usage(un, B_TRUE, errbuf); 4721 } 4722 } else { 4723 if (*endch != '\0') { 4724 p = getpwnam(curr); 4725 } else { 4726 p = getpwuid(rid); 4727 } 4728 4729 if (p == NULL) 4730 if (*endch != '\0') { 4731 g = getgrnam(curr); 4732 } else { 4733 g = getgrgid(rid); 4734 } 4735 4736 if (p != NULL) { 4737 who_type = ZFS_DELEG_USER; 4738 rid = p->pw_uid; 4739 } else if (g != NULL) { 4740 who_type = ZFS_DELEG_GROUP; 4741 rid = g->gr_gid; 4742 } else { 4743 (void) snprintf(errbuf, 256, gettext( 4744 "invalid user/group %s"), curr); 4745 allow_usage(un, B_TRUE, errbuf); 4746 } 4747 } 4748 4749 (void) sprintf(id, "%u", rid); 4750 who = id; 4751 4752 store_allow_perm(who_type, opts->local, 4753 opts->descend, who, opts->perms, *nvlp); 4754 curr = delim + 1; 4755 } 4756 } 4757 4758 return (0); 4759} 4760 4761static void 4762print_set_creat_perms(uu_avl_t *who_avl) 4763{ 4764 const char *sc_title[] = { 4765 gettext("Permission sets:\n"), 4766 gettext("Create time permissions:\n"), 4767 NULL 4768 }; 4769 const char **title_ptr = sc_title; 4770 who_perm_node_t *who_node = NULL; 4771 int prev_weight = -1; 4772 4773 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4774 who_node = uu_avl_next(who_avl, who_node)) { 4775 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4776 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4777 const char *who_name = who_node->who_perm.who_name; 4778 int weight = who_type2weight(who_type); 4779 boolean_t first = B_TRUE; 4780 deleg_perm_node_t *deleg_node; 4781 4782 if (prev_weight != weight) { 4783 (void) printf(*title_ptr++); 4784 prev_weight = weight; 4785 } 4786 4787 if (who_name == NULL || strnlen(who_name, 1) == 0) 4788 (void) printf("\t"); 4789 else 4790 (void) printf("\t%s ", who_name); 4791 4792 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4793 deleg_node = uu_avl_next(avl, deleg_node)) { 4794 if (first) { 4795 (void) printf("%s", 4796 deleg_node->dpn_perm.dp_name); 4797 first = B_FALSE; 4798 } else 4799 (void) printf(",%s", 4800 deleg_node->dpn_perm.dp_name); 4801 } 4802 4803 (void) printf("\n"); 4804 } 4805} 4806 4807static void inline 4808print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 4809 const char *title) 4810{ 4811 who_perm_node_t *who_node = NULL; 4812 boolean_t prt_title = B_TRUE; 4813 uu_avl_walk_t *walk; 4814 4815 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 4816 nomem(); 4817 4818 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 4819 const char *who_name = who_node->who_perm.who_name; 4820 const char *nice_who_name = who_node->who_perm.who_ug_name; 4821 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4822 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4823 char delim = ' '; 4824 deleg_perm_node_t *deleg_node; 4825 boolean_t prt_who = B_TRUE; 4826 4827 for (deleg_node = uu_avl_first(avl); 4828 deleg_node != NULL; 4829 deleg_node = uu_avl_next(avl, deleg_node)) { 4830 if (local != deleg_node->dpn_perm.dp_local || 4831 descend != deleg_node->dpn_perm.dp_descend) 4832 continue; 4833 4834 if (prt_who) { 4835 const char *who = NULL; 4836 if (prt_title) { 4837 prt_title = B_FALSE; 4838 (void) printf(title); 4839 } 4840 4841 switch (who_type) { 4842 case ZFS_DELEG_USER_SETS: 4843 case ZFS_DELEG_USER: 4844 who = gettext("user"); 4845 if (nice_who_name) 4846 who_name = nice_who_name; 4847 break; 4848 case ZFS_DELEG_GROUP_SETS: 4849 case ZFS_DELEG_GROUP: 4850 who = gettext("group"); 4851 if (nice_who_name) 4852 who_name = nice_who_name; 4853 break; 4854 case ZFS_DELEG_EVERYONE_SETS: 4855 case ZFS_DELEG_EVERYONE: 4856 who = gettext("everyone"); 4857 who_name = NULL; 4858 } 4859 4860 prt_who = B_FALSE; 4861 if (who_name == NULL) 4862 (void) printf("\t%s", who); 4863 else 4864 (void) printf("\t%s %s", who, who_name); 4865 } 4866 4867 (void) printf("%c%s", delim, 4868 deleg_node->dpn_perm.dp_name); 4869 delim = ','; 4870 } 4871 4872 if (!prt_who) 4873 (void) printf("\n"); 4874 } 4875 4876 uu_avl_walk_end(walk); 4877} 4878 4879static void 4880print_fs_perms(fs_perm_set_t *fspset) 4881{ 4882 fs_perm_node_t *node = NULL; 4883 char buf[ZFS_MAXNAMELEN+32]; 4884 const char *dsname = buf; 4885 4886 for (node = uu_list_first(fspset->fsps_list); node != NULL; 4887 node = uu_list_next(fspset->fsps_list, node)) { 4888 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 4889 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 4890 int left = 0; 4891 4892 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 4893 gettext("---- Permissions on %s "), 4894 node->fspn_fsperm.fsp_name); 4895 (void) printf(dsname); 4896 left = 70 - strlen(buf); 4897 while (left-- > 0) 4898 (void) printf("-"); 4899 (void) printf("\n"); 4900 4901 print_set_creat_perms(sc_avl); 4902 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 4903 gettext("Local permissions:\n")); 4904 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 4905 gettext("Descendent permissions:\n")); 4906 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 4907 gettext("Local+Descendent permissions:\n")); 4908 } 4909} 4910 4911static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 4912 4913struct deleg_perms { 4914 boolean_t un; 4915 nvlist_t *nvl; 4916}; 4917 4918static int 4919set_deleg_perms(zfs_handle_t *zhp, void *data) 4920{ 4921 struct deleg_perms *perms = (struct deleg_perms *)data; 4922 zfs_type_t zfs_type = zfs_get_type(zhp); 4923 4924 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 4925 return (0); 4926 4927 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 4928} 4929 4930static int 4931zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 4932{ 4933 zfs_handle_t *zhp; 4934 nvlist_t *perm_nvl = NULL; 4935 nvlist_t *update_perm_nvl = NULL; 4936 int error = 1; 4937 int c; 4938 struct allow_opts opts = { 0 }; 4939 4940 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 4941 4942 /* check opts */ 4943 while ((c = getopt(argc, argv, optstr)) != -1) { 4944 switch (c) { 4945 case 'l': 4946 opts.local = B_TRUE; 4947 break; 4948 case 'd': 4949 opts.descend = B_TRUE; 4950 break; 4951 case 'u': 4952 opts.user = B_TRUE; 4953 break; 4954 case 'g': 4955 opts.group = B_TRUE; 4956 break; 4957 case 'e': 4958 opts.everyone = B_TRUE; 4959 break; 4960 case 's': 4961 opts.set = B_TRUE; 4962 break; 4963 case 'c': 4964 opts.create = B_TRUE; 4965 break; 4966 case 'r': 4967 opts.recursive = B_TRUE; 4968 break; 4969 case ':': 4970 (void) fprintf(stderr, gettext("missing argument for " 4971 "'%c' option\n"), optopt); 4972 usage(B_FALSE); 4973 break; 4974 case 'h': 4975 opts.prt_usage = B_TRUE; 4976 break; 4977 case '?': 4978 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4979 optopt); 4980 usage(B_FALSE); 4981 } 4982 } 4983 4984 argc -= optind; 4985 argv += optind; 4986 4987 /* check arguments */ 4988 parse_allow_args(argc, argv, un, &opts); 4989 4990 /* try to open the dataset */ 4991 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 4992 ZFS_TYPE_VOLUME)) == NULL) { 4993 (void) fprintf(stderr, "Failed to open dataset: %s\n", 4994 opts.dataset); 4995 return (-1); 4996 } 4997 4998 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 4999 goto cleanup2; 5000 5001 fs_perm_set_init(&fs_perm_set); 5002 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5003 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5004 goto cleanup1; 5005 } 5006 5007 if (opts.prt_perms) 5008 print_fs_perms(&fs_perm_set); 5009 else { 5010 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5011 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5012 goto cleanup0; 5013 5014 if (un && opts.recursive) { 5015 struct deleg_perms data = { un, update_perm_nvl }; 5016 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5017 &data) != 0) 5018 goto cleanup0; 5019 } 5020 } 5021 5022 error = 0; 5023 5024cleanup0: 5025 nvlist_free(perm_nvl); 5026 if (update_perm_nvl != NULL) 5027 nvlist_free(update_perm_nvl); 5028cleanup1: 5029 fs_perm_set_fini(&fs_perm_set); 5030cleanup2: 5031 zfs_close(zhp); 5032 5033 return (error); 5034} 5035 5036/* 5037 * zfs allow [-r] [-t] <tag> <snap> ... 5038 * 5039 * -r Recursively hold 5040 * -t Temporary hold (hidden option) 5041 * 5042 * Apply a user-hold with the given tag to the list of snapshots. 5043 */ 5044static int 5045zfs_do_allow(int argc, char **argv) 5046{ 5047 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5048} 5049 5050/* 5051 * zfs unallow [-r] [-t] <tag> <snap> ... 5052 * 5053 * -r Recursively hold 5054 * -t Temporary hold (hidden option) 5055 * 5056 * Apply a user-hold with the given tag to the list of snapshots. 5057 */ 5058static int 5059zfs_do_unallow(int argc, char **argv) 5060{ 5061 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5062} 5063 5064static int 5065zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5066{ 5067 int errors = 0; 5068 int i; 5069 const char *tag; 5070 boolean_t recursive = B_FALSE; 5071 boolean_t temphold = B_FALSE; 5072 const char *opts = holding ? "rt" : "r"; 5073 int c; 5074 5075 /* check options */ 5076 while ((c = getopt(argc, argv, opts)) != -1) { 5077 switch (c) { 5078 case 'r': 5079 recursive = B_TRUE; 5080 break; 5081 case 't': 5082 temphold = B_TRUE; 5083 break; 5084 case '?': 5085 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5086 optopt); 5087 usage(B_FALSE); 5088 } 5089 } 5090 5091 argc -= optind; 5092 argv += optind; 5093 5094 /* check number of arguments */ 5095 if (argc < 2) 5096 usage(B_FALSE); 5097 5098 tag = argv[0]; 5099 --argc; 5100 ++argv; 5101 5102 if (holding && tag[0] == '.') { 5103 /* tags starting with '.' are reserved for libzfs */ 5104 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5105 usage(B_FALSE); 5106 } 5107 5108 for (i = 0; i < argc; ++i) { 5109 zfs_handle_t *zhp; 5110 char parent[ZFS_MAXNAMELEN]; 5111 const char *delim; 5112 char *path = argv[i]; 5113 5114 delim = strchr(path, '@'); 5115 if (delim == NULL) { 5116 (void) fprintf(stderr, 5117 gettext("'%s' is not a snapshot\n"), path); 5118 ++errors; 5119 continue; 5120 } 5121 (void) strncpy(parent, path, delim - path); 5122 parent[delim - path] = '\0'; 5123 5124 zhp = zfs_open(g_zfs, parent, 5125 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5126 if (zhp == NULL) { 5127 ++errors; 5128 continue; 5129 } 5130 if (holding) { 5131 if (zfs_hold(zhp, delim+1, tag, recursive, 5132 temphold, B_FALSE, -1, 0, 0) != 0) 5133 ++errors; 5134 } else { 5135 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5136 ++errors; 5137 } 5138 zfs_close(zhp); 5139 } 5140 5141 return (errors != 0); 5142} 5143 5144/* 5145 * zfs hold [-r] [-t] <tag> <snap> ... 5146 * 5147 * -r Recursively hold 5148 * -t Temporary hold (hidden option) 5149 * 5150 * Apply a user-hold with the given tag to the list of snapshots. 5151 */ 5152static int 5153zfs_do_hold(int argc, char **argv) 5154{ 5155 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5156} 5157 5158/* 5159 * zfs release [-r] <tag> <snap> ... 5160 * 5161 * -r Recursively release 5162 * 5163 * Release a user-hold with the given tag from the list of snapshots. 5164 */ 5165static int 5166zfs_do_release(int argc, char **argv) 5167{ 5168 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5169} 5170 5171typedef struct holds_cbdata { 5172 boolean_t cb_recursive; 5173 const char *cb_snapname; 5174 nvlist_t **cb_nvlp; 5175 size_t cb_max_namelen; 5176 size_t cb_max_taglen; 5177} holds_cbdata_t; 5178 5179#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5180#define DATETIME_BUF_LEN (32) 5181/* 5182 * 5183 */ 5184static void 5185print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5186{ 5187 int i; 5188 nvpair_t *nvp = NULL; 5189 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5190 const char *col; 5191 5192 if (!scripted) { 5193 for (i = 0; i < 3; i++) { 5194 col = gettext(hdr_cols[i]); 5195 if (i < 2) 5196 (void) printf("%-*s ", i ? tagwidth : nwidth, 5197 col); 5198 else 5199 (void) printf("%s\n", col); 5200 } 5201 } 5202 5203 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5204 char *zname = nvpair_name(nvp); 5205 nvlist_t *nvl2; 5206 nvpair_t *nvp2 = NULL; 5207 (void) nvpair_value_nvlist(nvp, &nvl2); 5208 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5209 char tsbuf[DATETIME_BUF_LEN]; 5210 char *tagname = nvpair_name(nvp2); 5211 uint64_t val = 0; 5212 time_t time; 5213 struct tm t; 5214 char sep = scripted ? '\t' : ' '; 5215 size_t sepnum = scripted ? 1 : 2; 5216 5217 (void) nvpair_value_uint64(nvp2, &val); 5218 time = (time_t)val; 5219 (void) localtime_r(&time, &t); 5220 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5221 gettext(STRFTIME_FMT_STR), &t); 5222 5223 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5224 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5225 } 5226 } 5227} 5228 5229/* 5230 * Generic callback function to list a dataset or snapshot. 5231 */ 5232static int 5233holds_callback(zfs_handle_t *zhp, void *data) 5234{ 5235 holds_cbdata_t *cbp = data; 5236 nvlist_t *top_nvl = *cbp->cb_nvlp; 5237 nvlist_t *nvl = NULL; 5238 nvpair_t *nvp = NULL; 5239 const char *zname = zfs_get_name(zhp); 5240 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5241 5242 if (cbp->cb_recursive) { 5243 const char *snapname; 5244 char *delim = strchr(zname, '@'); 5245 if (delim == NULL) 5246 return (0); 5247 5248 snapname = delim + 1; 5249 if (strcmp(cbp->cb_snapname, snapname)) 5250 return (0); 5251 } 5252 5253 if (zfs_get_holds(zhp, &nvl) != 0) 5254 return (-1); 5255 5256 if (znamelen > cbp->cb_max_namelen) 5257 cbp->cb_max_namelen = znamelen; 5258 5259 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5260 const char *tag = nvpair_name(nvp); 5261 size_t taglen = strnlen(tag, MAXNAMELEN); 5262 if (taglen > cbp->cb_max_taglen) 5263 cbp->cb_max_taglen = taglen; 5264 } 5265 5266 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5267} 5268 5269/* 5270 * zfs holds [-r] <snap> ... 5271 * 5272 * -r Recursively hold 5273 */ 5274static int 5275zfs_do_holds(int argc, char **argv) 5276{ 5277 int errors = 0; 5278 int c; 5279 int i; 5280 boolean_t scripted = B_FALSE; 5281 boolean_t recursive = B_FALSE; 5282 const char *opts = "rH"; 5283 nvlist_t *nvl; 5284 5285 int types = ZFS_TYPE_SNAPSHOT; 5286 holds_cbdata_t cb = { 0 }; 5287 5288 int limit = 0; 5289 int ret; 5290 int flags = 0; 5291 5292 /* check options */ 5293 while ((c = getopt(argc, argv, opts)) != -1) { 5294 switch (c) { 5295 case 'r': 5296 recursive = B_TRUE; 5297 break; 5298 case 'H': 5299 scripted = B_TRUE; 5300 break; 5301 case '?': 5302 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5303 optopt); 5304 usage(B_FALSE); 5305 } 5306 } 5307 5308 if (recursive) { 5309 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5310 flags |= ZFS_ITER_RECURSE; 5311 } 5312 5313 argc -= optind; 5314 argv += optind; 5315 5316 /* check number of arguments */ 5317 if (argc < 1) 5318 usage(B_FALSE); 5319 5320 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5321 nomem(); 5322 5323 for (i = 0; i < argc; ++i) { 5324 char *snapshot = argv[i]; 5325 const char *delim; 5326 const char *snapname; 5327 5328 delim = strchr(snapshot, '@'); 5329 if (delim == NULL) { 5330 (void) fprintf(stderr, 5331 gettext("'%s' is not a snapshot\n"), snapshot); 5332 ++errors; 5333 continue; 5334 } 5335 snapname = delim + 1; 5336 if (recursive) 5337 snapshot[delim - snapshot] = '\0'; 5338 5339 cb.cb_recursive = recursive; 5340 cb.cb_snapname = snapname; 5341 cb.cb_nvlp = &nvl; 5342 5343 /* 5344 * 1. collect holds data, set format options 5345 */ 5346 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5347 holds_callback, &cb); 5348 if (ret != 0) 5349 ++errors; 5350 } 5351 5352 /* 5353 * 2. print holds data 5354 */ 5355 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5356 5357 if (nvlist_empty(nvl)) 5358 (void) printf(gettext("no datasets available\n")); 5359 5360 nvlist_free(nvl); 5361 5362 return (0 != errors); 5363} 5364 5365#define CHECK_SPINNER 30 5366#define SPINNER_TIME 3 /* seconds */ 5367#define MOUNT_TIME 5 /* seconds */ 5368 5369static int 5370get_one_dataset(zfs_handle_t *zhp, void *data) 5371{ 5372 static char *spin[] = { "-", "\\", "|", "/" }; 5373 static int spinval = 0; 5374 static int spincheck = 0; 5375 static time_t last_spin_time = (time_t)0; 5376 get_all_cb_t *cbp = data; 5377 zfs_type_t type = zfs_get_type(zhp); 5378 5379 if (cbp->cb_verbose) { 5380 if (--spincheck < 0) { 5381 time_t now = time(NULL); 5382 if (last_spin_time + SPINNER_TIME < now) { 5383 update_progress(spin[spinval++ % 4]); 5384 last_spin_time = now; 5385 } 5386 spincheck = CHECK_SPINNER; 5387 } 5388 } 5389 5390 /* 5391 * Interate over any nested datasets. 5392 */ 5393 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5394 zfs_close(zhp); 5395 return (1); 5396 } 5397 5398 /* 5399 * Skip any datasets whose type does not match. 5400 */ 5401 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5402 zfs_close(zhp); 5403 return (0); 5404 } 5405 libzfs_add_handle(cbp, zhp); 5406 assert(cbp->cb_used <= cbp->cb_alloc); 5407 5408 return (0); 5409} 5410 5411static void 5412get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5413{ 5414 get_all_cb_t cb = { 0 }; 5415 cb.cb_verbose = verbose; 5416 cb.cb_getone = get_one_dataset; 5417 5418 if (verbose) 5419 set_progress_header(gettext("Reading ZFS config")); 5420 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5421 5422 *dslist = cb.cb_handles; 5423 *count = cb.cb_used; 5424 5425 if (verbose) 5426 finish_progress(gettext("done.")); 5427} 5428 5429/* 5430 * Generic callback for sharing or mounting filesystems. Because the code is so 5431 * similar, we have a common function with an extra parameter to determine which 5432 * mode we are using. 5433 */ 5434#define OP_SHARE 0x1 5435#define OP_MOUNT 0x2 5436 5437/* 5438 * Share or mount a dataset. 5439 */ 5440static int 5441share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5442 boolean_t explicit, const char *options) 5443{ 5444 char mountpoint[ZFS_MAXPROPLEN]; 5445 char shareopts[ZFS_MAXPROPLEN]; 5446 char smbshareopts[ZFS_MAXPROPLEN]; 5447 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5448 struct mnttab mnt; 5449 uint64_t zoned, canmount; 5450 boolean_t shared_nfs, shared_smb; 5451 5452 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5453 5454 /* 5455 * Check to make sure we can mount/share this dataset. If we 5456 * are in the global zone and the filesystem is exported to a 5457 * local zone, or if we are in a local zone and the 5458 * filesystem is not exported, then it is an error. 5459 */ 5460 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5461 5462 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5463 if (!explicit) 5464 return (0); 5465 5466 (void) fprintf(stderr, gettext("cannot %s '%s': " 5467 "dataset is exported to a local zone\n"), cmdname, 5468 zfs_get_name(zhp)); 5469 return (1); 5470 5471 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5472 if (!explicit) 5473 return (0); 5474 5475 (void) fprintf(stderr, gettext("cannot %s '%s': " 5476 "permission denied\n"), cmdname, 5477 zfs_get_name(zhp)); 5478 return (1); 5479 } 5480 5481 /* 5482 * Ignore any filesystems which don't apply to us. This 5483 * includes those with a legacy mountpoint, or those with 5484 * legacy share options. 5485 */ 5486 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5487 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5488 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5489 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5490 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5491 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5492 5493 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5494 strcmp(smbshareopts, "off") == 0) { 5495 if (!explicit) 5496 return (0); 5497 5498 (void) fprintf(stderr, gettext("cannot share '%s': " 5499 "legacy share\n"), zfs_get_name(zhp)); 5500 (void) fprintf(stderr, gettext("use share(1M) to " 5501 "share this filesystem, or set " 5502 "sharenfs property on\n")); 5503 return (1); 5504 } 5505 5506 /* 5507 * We cannot share or mount legacy filesystems. If the 5508 * shareopts is non-legacy but the mountpoint is legacy, we 5509 * treat it as a legacy share. 5510 */ 5511 if (strcmp(mountpoint, "legacy") == 0) { 5512 if (!explicit) 5513 return (0); 5514 5515 (void) fprintf(stderr, gettext("cannot %s '%s': " 5516 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5517 (void) fprintf(stderr, gettext("use %s(1M) to " 5518 "%s this filesystem\n"), cmdname, cmdname); 5519 return (1); 5520 } 5521 5522 if (strcmp(mountpoint, "none") == 0) { 5523 if (!explicit) 5524 return (0); 5525 5526 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5527 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5528 return (1); 5529 } 5530 5531 /* 5532 * canmount explicit outcome 5533 * on no pass through 5534 * on yes pass through 5535 * off no return 0 5536 * off yes display error, return 1 5537 * noauto no return 0 5538 * noauto yes pass through 5539 */ 5540 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5541 if (canmount == ZFS_CANMOUNT_OFF) { 5542 if (!explicit) 5543 return (0); 5544 5545 (void) fprintf(stderr, gettext("cannot %s '%s': " 5546 "'canmount' property is set to 'off'\n"), cmdname, 5547 zfs_get_name(zhp)); 5548 return (1); 5549 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5550 return (0); 5551 } 5552 5553 /* 5554 * At this point, we have verified that the mountpoint and/or 5555 * shareopts are appropriate for auto management. If the 5556 * filesystem is already mounted or shared, return (failing 5557 * for explicit requests); otherwise mount or share the 5558 * filesystem. 5559 */ 5560 switch (op) { 5561 case OP_SHARE: 5562 5563 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5564 shared_smb = zfs_is_shared_smb(zhp, NULL); 5565 5566 if (shared_nfs && shared_smb || 5567 (shared_nfs && strcmp(shareopts, "on") == 0 && 5568 strcmp(smbshareopts, "off") == 0) || 5569 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5570 strcmp(shareopts, "off") == 0)) { 5571 if (!explicit) 5572 return (0); 5573 5574 (void) fprintf(stderr, gettext("cannot share " 5575 "'%s': filesystem already shared\n"), 5576 zfs_get_name(zhp)); 5577 return (1); 5578 } 5579 5580 if (!zfs_is_mounted(zhp, NULL) && 5581 zfs_mount(zhp, NULL, 0) != 0) 5582 return (1); 5583 5584 if (protocol == NULL) { 5585 if (zfs_shareall(zhp) != 0) 5586 return (1); 5587 } else if (strcmp(protocol, "nfs") == 0) { 5588 if (zfs_share_nfs(zhp)) 5589 return (1); 5590 } else if (strcmp(protocol, "smb") == 0) { 5591 if (zfs_share_smb(zhp)) 5592 return (1); 5593 } else { 5594 (void) fprintf(stderr, gettext("cannot share " 5595 "'%s': invalid share type '%s' " 5596 "specified\n"), 5597 zfs_get_name(zhp), protocol); 5598 return (1); 5599 } 5600 5601 break; 5602 5603 case OP_MOUNT: 5604 if (options == NULL) 5605 mnt.mnt_mntopts = ""; 5606 else 5607 mnt.mnt_mntopts = (char *)options; 5608 5609 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5610 zfs_is_mounted(zhp, NULL)) { 5611 if (!explicit) 5612 return (0); 5613 5614 (void) fprintf(stderr, gettext("cannot mount " 5615 "'%s': filesystem already mounted\n"), 5616 zfs_get_name(zhp)); 5617 return (1); 5618 } 5619 5620 if (zfs_mount(zhp, options, flags) != 0) 5621 return (1); 5622 break; 5623 } 5624 5625 return (0); 5626} 5627 5628/* 5629 * Reports progress in the form "(current/total)". Not thread-safe. 5630 */ 5631static void 5632report_mount_progress(int current, int total) 5633{ 5634 static time_t last_progress_time = 0; 5635 time_t now = time(NULL); 5636 char info[32]; 5637 5638 /* report 1..n instead of 0..n-1 */ 5639 ++current; 5640 5641 /* display header if we're here for the first time */ 5642 if (current == 1) { 5643 set_progress_header(gettext("Mounting ZFS filesystems")); 5644 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5645 /* too soon to report again */ 5646 return; 5647 } 5648 5649 last_progress_time = now; 5650 5651 (void) sprintf(info, "(%d/%d)", current, total); 5652 5653 if (current == total) 5654 finish_progress(info); 5655 else 5656 update_progress(info); 5657} 5658 5659static void 5660append_options(char *mntopts, char *newopts) 5661{ 5662 int len = strlen(mntopts); 5663 5664 /* original length plus new string to append plus 1 for the comma */ 5665 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5666 (void) fprintf(stderr, gettext("the opts argument for " 5667 "'%c' option is too long (more than %d chars)\n"), 5668 "-o", MNT_LINE_MAX); 5669 usage(B_FALSE); 5670 } 5671 5672 if (*mntopts) 5673 mntopts[len++] = ','; 5674 5675 (void) strcpy(&mntopts[len], newopts); 5676} 5677 5678static int 5679share_mount(int op, int argc, char **argv) 5680{ 5681 int do_all = 0; 5682 boolean_t verbose = B_FALSE; 5683 int c, ret = 0; 5684 char *options = NULL; 5685 int flags = 0; 5686 5687 /* check options */ 5688 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5689 != -1) { 5690 switch (c) { 5691 case 'a': 5692 do_all = 1; 5693 break; 5694 case 'v': 5695 verbose = B_TRUE; 5696 break; 5697 case 'o': 5698 if (*optarg == '\0') { 5699 (void) fprintf(stderr, gettext("empty mount " 5700 "options (-o) specified\n")); 5701 usage(B_FALSE); 5702 } 5703 5704 if (options == NULL) 5705 options = safe_malloc(MNT_LINE_MAX + 1); 5706 5707 /* option validation is done later */ 5708 append_options(options, optarg); 5709 break; 5710 5711 case 'O': 5712 warnx("no overlay mounts support on FreeBSD, ignoring"); 5713 break; 5714 case ':': 5715 (void) fprintf(stderr, gettext("missing argument for " 5716 "'%c' option\n"), optopt); 5717 usage(B_FALSE); 5718 break; 5719 case '?': 5720 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5721 optopt); 5722 usage(B_FALSE); 5723 } 5724 } 5725 5726 argc -= optind; 5727 argv += optind; 5728 5729 /* check number of arguments */ 5730 if (do_all) { 5731 zfs_handle_t **dslist = NULL; 5732 size_t i, count = 0; 5733 char *protocol = NULL; 5734 5735 if (op == OP_SHARE && argc > 0) { 5736 if (strcmp(argv[0], "nfs") != 0 && 5737 strcmp(argv[0], "smb") != 0) { 5738 (void) fprintf(stderr, gettext("share type " 5739 "must be 'nfs' or 'smb'\n")); 5740 usage(B_FALSE); 5741 } 5742 protocol = argv[0]; 5743 argc--; 5744 argv++; 5745 } 5746 5747 if (argc != 0) { 5748 (void) fprintf(stderr, gettext("too many arguments\n")); 5749 usage(B_FALSE); 5750 } 5751 5752 start_progress_timer(); 5753 get_all_datasets(&dslist, &count, verbose); 5754 5755 if (count == 0) 5756 return (0); 5757 5758 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5759 5760 for (i = 0; i < count; i++) { 5761 if (verbose) 5762 report_mount_progress(i, count); 5763 5764 if (share_mount_one(dslist[i], op, flags, protocol, 5765 B_FALSE, options) != 0) 5766 ret = 1; 5767 zfs_close(dslist[i]); 5768 } 5769 5770 free(dslist); 5771 } else if (argc == 0) { 5772 struct mnttab entry; 5773 5774 if ((op == OP_SHARE) || (options != NULL)) { 5775 (void) fprintf(stderr, gettext("missing filesystem " 5776 "argument (specify -a for all)\n")); 5777 usage(B_FALSE); 5778 } 5779 5780 /* 5781 * When mount is given no arguments, go through /etc/mnttab and 5782 * display any active ZFS mounts. We hide any snapshots, since 5783 * they are controlled automatically. 5784 */ 5785 rewind(mnttab_file); 5786 while (getmntent(mnttab_file, &entry) == 0) { 5787 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5788 strchr(entry.mnt_special, '@') != NULL) 5789 continue; 5790 5791 (void) printf("%-30s %s\n", entry.mnt_special, 5792 entry.mnt_mountp); 5793 } 5794 5795 } else { 5796 zfs_handle_t *zhp; 5797 5798 if (argc > 1) { 5799 (void) fprintf(stderr, 5800 gettext("too many arguments\n")); 5801 usage(B_FALSE); 5802 } 5803 5804 if ((zhp = zfs_open(g_zfs, argv[0], 5805 ZFS_TYPE_FILESYSTEM)) == NULL) { 5806 ret = 1; 5807 } else { 5808 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5809 options); 5810 zfs_close(zhp); 5811 } 5812 } 5813 5814 return (ret); 5815} 5816 5817/* 5818 * zfs mount -a [nfs] 5819 * zfs mount filesystem 5820 * 5821 * Mount all filesystems, or mount the given filesystem. 5822 */ 5823static int 5824zfs_do_mount(int argc, char **argv) 5825{ 5826 return (share_mount(OP_MOUNT, argc, argv)); 5827} 5828 5829/* 5830 * zfs share -a [nfs | smb] 5831 * zfs share filesystem 5832 * 5833 * Share all filesystems, or share the given filesystem. 5834 */ 5835static int 5836zfs_do_share(int argc, char **argv) 5837{ 5838 return (share_mount(OP_SHARE, argc, argv)); 5839} 5840 5841typedef struct unshare_unmount_node { 5842 zfs_handle_t *un_zhp; 5843 char *un_mountp; 5844 uu_avl_node_t un_avlnode; 5845} unshare_unmount_node_t; 5846 5847/* ARGSUSED */ 5848static int 5849unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 5850{ 5851 const unshare_unmount_node_t *l = larg; 5852 const unshare_unmount_node_t *r = rarg; 5853 5854 return (strcmp(l->un_mountp, r->un_mountp)); 5855} 5856 5857/* 5858 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 5859 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 5860 * and unmount it appropriately. 5861 */ 5862static int 5863unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 5864{ 5865 zfs_handle_t *zhp; 5866 int ret; 5867 struct stat64 statbuf; 5868 struct extmnttab entry; 5869 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 5870 ino_t path_inode; 5871 5872 /* 5873 * Search for the path in /etc/mnttab. Rather than looking for the 5874 * specific path, which can be fooled by non-standard paths (i.e. ".." 5875 * or "//"), we stat() the path and search for the corresponding 5876 * (major,minor) device pair. 5877 */ 5878 if (stat64(path, &statbuf) != 0) { 5879 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5880 cmdname, path, strerror(errno)); 5881 return (1); 5882 } 5883 path_inode = statbuf.st_ino; 5884 5885 /* 5886 * Search for the given (major,minor) pair in the mount table. 5887 */ 5888#ifdef sun 5889 rewind(mnttab_file); 5890 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 5891 if (entry.mnt_major == major(statbuf.st_dev) && 5892 entry.mnt_minor == minor(statbuf.st_dev)) 5893 break; 5894 } 5895#else 5896 { 5897 struct statfs sfs; 5898 5899 if (statfs(path, &sfs) != 0) { 5900 (void) fprintf(stderr, "%s: %s\n", path, 5901 strerror(errno)); 5902 ret = -1; 5903 } 5904 statfs2mnttab(&sfs, &entry); 5905 } 5906#endif 5907 if (ret != 0) { 5908 if (op == OP_SHARE) { 5909 (void) fprintf(stderr, gettext("cannot %s '%s': not " 5910 "currently mounted\n"), cmdname, path); 5911 return (1); 5912 } 5913 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 5914 path); 5915 if ((ret = umount2(path, flags)) != 0) 5916 (void) fprintf(stderr, gettext("%s: %s\n"), path, 5917 strerror(errno)); 5918 return (ret != 0); 5919 } 5920 5921 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 5922 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 5923 "filesystem\n"), cmdname, path); 5924 return (1); 5925 } 5926 5927 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 5928 ZFS_TYPE_FILESYSTEM)) == NULL) 5929 return (1); 5930 5931 ret = 1; 5932 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 5933 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5934 cmdname, path, strerror(errno)); 5935 goto out; 5936 } else if (statbuf.st_ino != path_inode) { 5937 (void) fprintf(stderr, gettext("cannot " 5938 "%s '%s': not a mountpoint\n"), cmdname, path); 5939 goto out; 5940 } 5941 5942 if (op == OP_SHARE) { 5943 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 5944 char smbshare_prop[ZFS_MAXPROPLEN]; 5945 5946 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 5947 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 5948 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 5949 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 5950 5951 if (strcmp(nfs_mnt_prop, "off") == 0 && 5952 strcmp(smbshare_prop, "off") == 0) { 5953 (void) fprintf(stderr, gettext("cannot unshare " 5954 "'%s': legacy share\n"), path); 5955 (void) fprintf(stderr, gettext("use " 5956 "unshare(1M) to unshare this filesystem\n")); 5957 } else if (!zfs_is_shared(zhp)) { 5958 (void) fprintf(stderr, gettext("cannot unshare '%s': " 5959 "not currently shared\n"), path); 5960 } else { 5961 ret = zfs_unshareall_bypath(zhp, path); 5962 } 5963 } else { 5964 char mtpt_prop[ZFS_MAXPROPLEN]; 5965 5966 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 5967 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 5968 5969 if (is_manual) { 5970 ret = zfs_unmount(zhp, NULL, flags); 5971 } else if (strcmp(mtpt_prop, "legacy") == 0) { 5972 (void) fprintf(stderr, gettext("cannot unmount " 5973 "'%s': legacy mountpoint\n"), 5974 zfs_get_name(zhp)); 5975 (void) fprintf(stderr, gettext("use umount(1M) " 5976 "to unmount this filesystem\n")); 5977 } else { 5978 ret = zfs_unmountall(zhp, flags); 5979 } 5980 } 5981 5982out: 5983 zfs_close(zhp); 5984 5985 return (ret != 0); 5986} 5987 5988/* 5989 * Generic callback for unsharing or unmounting a filesystem. 5990 */ 5991static int 5992unshare_unmount(int op, int argc, char **argv) 5993{ 5994 int do_all = 0; 5995 int flags = 0; 5996 int ret = 0; 5997 int c; 5998 zfs_handle_t *zhp; 5999 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6000 char sharesmb[ZFS_MAXPROPLEN]; 6001 6002 /* check options */ 6003 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6004 switch (c) { 6005 case 'a': 6006 do_all = 1; 6007 break; 6008 case 'f': 6009 flags = MS_FORCE; 6010 break; 6011 case '?': 6012 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6013 optopt); 6014 usage(B_FALSE); 6015 } 6016 } 6017 6018 argc -= optind; 6019 argv += optind; 6020 6021 if (do_all) { 6022 /* 6023 * We could make use of zfs_for_each() to walk all datasets in 6024 * the system, but this would be very inefficient, especially 6025 * since we would have to linearly search /etc/mnttab for each 6026 * one. Instead, do one pass through /etc/mnttab looking for 6027 * zfs entries and call zfs_unmount() for each one. 6028 * 6029 * Things get a little tricky if the administrator has created 6030 * mountpoints beneath other ZFS filesystems. In this case, we 6031 * have to unmount the deepest filesystems first. To accomplish 6032 * this, we place all the mountpoints in an AVL tree sorted by 6033 * the special type (dataset name), and walk the result in 6034 * reverse to make sure to get any snapshots first. 6035 */ 6036 struct mnttab entry; 6037 uu_avl_pool_t *pool; 6038 uu_avl_t *tree; 6039 unshare_unmount_node_t *node; 6040 uu_avl_index_t idx; 6041 uu_avl_walk_t *walk; 6042 6043 if (argc != 0) { 6044 (void) fprintf(stderr, gettext("too many arguments\n")); 6045 usage(B_FALSE); 6046 } 6047 6048 if (((pool = uu_avl_pool_create("unmount_pool", 6049 sizeof (unshare_unmount_node_t), 6050 offsetof(unshare_unmount_node_t, un_avlnode), 6051 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6052 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6053 nomem(); 6054 6055 rewind(mnttab_file); 6056 while (getmntent(mnttab_file, &entry) == 0) { 6057 6058 /* ignore non-ZFS entries */ 6059 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6060 continue; 6061 6062 /* ignore snapshots */ 6063 if (strchr(entry.mnt_special, '@') != NULL) 6064 continue; 6065 6066 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6067 ZFS_TYPE_FILESYSTEM)) == NULL) { 6068 ret = 1; 6069 continue; 6070 } 6071 6072 switch (op) { 6073 case OP_SHARE: 6074 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6075 nfs_mnt_prop, 6076 sizeof (nfs_mnt_prop), 6077 NULL, NULL, 0, B_FALSE) == 0); 6078 if (strcmp(nfs_mnt_prop, "off") != 0) 6079 break; 6080 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6081 nfs_mnt_prop, 6082 sizeof (nfs_mnt_prop), 6083 NULL, NULL, 0, B_FALSE) == 0); 6084 if (strcmp(nfs_mnt_prop, "off") == 0) 6085 continue; 6086 break; 6087 case OP_MOUNT: 6088 /* Ignore legacy mounts */ 6089 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6090 nfs_mnt_prop, 6091 sizeof (nfs_mnt_prop), 6092 NULL, NULL, 0, B_FALSE) == 0); 6093 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6094 continue; 6095 /* Ignore canmount=noauto mounts */ 6096 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6097 ZFS_CANMOUNT_NOAUTO) 6098 continue; 6099 default: 6100 break; 6101 } 6102 6103 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6104 node->un_zhp = zhp; 6105 node->un_mountp = safe_strdup(entry.mnt_mountp); 6106 6107 uu_avl_node_init(node, &node->un_avlnode, pool); 6108 6109 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6110 uu_avl_insert(tree, node, idx); 6111 } else { 6112 zfs_close(node->un_zhp); 6113 free(node->un_mountp); 6114 free(node); 6115 } 6116 } 6117 6118 /* 6119 * Walk the AVL tree in reverse, unmounting each filesystem and 6120 * removing it from the AVL tree in the process. 6121 */ 6122 if ((walk = uu_avl_walk_start(tree, 6123 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6124 nomem(); 6125 6126 while ((node = uu_avl_walk_next(walk)) != NULL) { 6127 uu_avl_remove(tree, node); 6128 6129 switch (op) { 6130 case OP_SHARE: 6131 if (zfs_unshareall_bypath(node->un_zhp, 6132 node->un_mountp) != 0) 6133 ret = 1; 6134 break; 6135 6136 case OP_MOUNT: 6137 if (zfs_unmount(node->un_zhp, 6138 node->un_mountp, flags) != 0) 6139 ret = 1; 6140 break; 6141 } 6142 6143 zfs_close(node->un_zhp); 6144 free(node->un_mountp); 6145 free(node); 6146 } 6147 6148 uu_avl_walk_end(walk); 6149 uu_avl_destroy(tree); 6150 uu_avl_pool_destroy(pool); 6151 6152 } else { 6153 if (argc != 1) { 6154 if (argc == 0) 6155 (void) fprintf(stderr, 6156 gettext("missing filesystem argument\n")); 6157 else 6158 (void) fprintf(stderr, 6159 gettext("too many arguments\n")); 6160 usage(B_FALSE); 6161 } 6162 6163 /* 6164 * We have an argument, but it may be a full path or a ZFS 6165 * filesystem. Pass full paths off to unmount_path() (shared by 6166 * manual_unmount), otherwise open the filesystem and pass to 6167 * zfs_unmount(). 6168 */ 6169 if (argv[0][0] == '/') 6170 return (unshare_unmount_path(op, argv[0], 6171 flags, B_FALSE)); 6172 6173 if ((zhp = zfs_open(g_zfs, argv[0], 6174 ZFS_TYPE_FILESYSTEM)) == NULL) 6175 return (1); 6176 6177 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6178 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6179 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6180 NULL, 0, B_FALSE) == 0); 6181 6182 switch (op) { 6183 case OP_SHARE: 6184 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6185 nfs_mnt_prop, 6186 sizeof (nfs_mnt_prop), 6187 NULL, NULL, 0, B_FALSE) == 0); 6188 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6189 sharesmb, sizeof (sharesmb), NULL, NULL, 6190 0, B_FALSE) == 0); 6191 6192 if (strcmp(nfs_mnt_prop, "off") == 0 && 6193 strcmp(sharesmb, "off") == 0) { 6194 (void) fprintf(stderr, gettext("cannot " 6195 "unshare '%s': legacy share\n"), 6196 zfs_get_name(zhp)); 6197 (void) fprintf(stderr, gettext("use " 6198 "unshare(1M) to unshare this " 6199 "filesystem\n")); 6200 ret = 1; 6201 } else if (!zfs_is_shared(zhp)) { 6202 (void) fprintf(stderr, gettext("cannot " 6203 "unshare '%s': not currently " 6204 "shared\n"), zfs_get_name(zhp)); 6205 ret = 1; 6206 } else if (zfs_unshareall(zhp) != 0) { 6207 ret = 1; 6208 } 6209 break; 6210 6211 case OP_MOUNT: 6212 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6213 (void) fprintf(stderr, gettext("cannot " 6214 "unmount '%s': legacy " 6215 "mountpoint\n"), zfs_get_name(zhp)); 6216 (void) fprintf(stderr, gettext("use " 6217 "umount(1M) to unmount this " 6218 "filesystem\n")); 6219 ret = 1; 6220 } else if (!zfs_is_mounted(zhp, NULL)) { 6221 (void) fprintf(stderr, gettext("cannot " 6222 "unmount '%s': not currently " 6223 "mounted\n"), 6224 zfs_get_name(zhp)); 6225 ret = 1; 6226 } else if (zfs_unmountall(zhp, flags) != 0) { 6227 ret = 1; 6228 } 6229 break; 6230 } 6231 6232 zfs_close(zhp); 6233 } 6234 6235 return (ret); 6236} 6237 6238/* 6239 * zfs unmount -a 6240 * zfs unmount filesystem 6241 * 6242 * Unmount all filesystems, or a specific ZFS filesystem. 6243 */ 6244static int 6245zfs_do_unmount(int argc, char **argv) 6246{ 6247 return (unshare_unmount(OP_MOUNT, argc, argv)); 6248} 6249 6250/* 6251 * zfs unshare -a 6252 * zfs unshare filesystem 6253 * 6254 * Unshare all filesystems, or a specific ZFS filesystem. 6255 */ 6256static int 6257zfs_do_unshare(int argc, char **argv) 6258{ 6259 return (unshare_unmount(OP_SHARE, argc, argv)); 6260} 6261 6262/* 6263 * Attach/detach the given dataset to/from the given jail 6264 */ 6265/* ARGSUSED */ 6266static int 6267do_jail(int argc, char **argv, int attach) 6268{ 6269 zfs_handle_t *zhp; 6270 int jailid, ret; 6271 6272 /* check number of arguments */ 6273 if (argc < 3) { 6274 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6275 usage(B_FALSE); 6276 } 6277 if (argc > 3) { 6278 (void) fprintf(stderr, gettext("too many arguments\n")); 6279 usage(B_FALSE); 6280 } 6281 6282 jailid = atoi(argv[1]); 6283 if (jailid == 0) { 6284 (void) fprintf(stderr, gettext("invalid jailid\n")); 6285 usage(B_FALSE); 6286 } 6287 6288 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6289 if (zhp == NULL) 6290 return (1); 6291 6292 ret = (zfs_jail(zhp, jailid, attach) != 0); 6293 6294 zfs_close(zhp); 6295 return (ret); 6296} 6297 6298/* 6299 * zfs jail jailid filesystem 6300 * 6301 * Attach the given dataset to the given jail 6302 */ 6303/* ARGSUSED */ 6304static int 6305zfs_do_jail(int argc, char **argv) 6306{ 6307 6308 return (do_jail(argc, argv, 1)); 6309} 6310 6311/* 6312 * zfs unjail jailid filesystem 6313 * 6314 * Detach the given dataset from the given jail 6315 */ 6316/* ARGSUSED */ 6317static int 6318zfs_do_unjail(int argc, char **argv) 6319{ 6320 6321 return (do_jail(argc, argv, 0)); 6322} 6323 6324/* 6325 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6326 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6327 */ 6328static int 6329manual_mount(int argc, char **argv) 6330{ 6331 zfs_handle_t *zhp; 6332 char mountpoint[ZFS_MAXPROPLEN]; 6333 char mntopts[MNT_LINE_MAX] = { '\0' }; 6334 int ret; 6335 int c; 6336 int flags = 0; 6337 char *dataset, *path; 6338 6339 /* check options */ 6340 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6341 switch (c) { 6342 case 'o': 6343 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6344 break; 6345 case 'O': 6346 flags |= MS_OVERLAY; 6347 break; 6348 case 'm': 6349 flags |= MS_NOMNTTAB; 6350 break; 6351 case ':': 6352 (void) fprintf(stderr, gettext("missing argument for " 6353 "'%c' option\n"), optopt); 6354 usage(B_FALSE); 6355 break; 6356 case '?': 6357 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6358 optopt); 6359 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6360 "<path>\n")); 6361 return (2); 6362 } 6363 } 6364 6365 argc -= optind; 6366 argv += optind; 6367 6368 /* check that we only have two arguments */ 6369 if (argc != 2) { 6370 if (argc == 0) 6371 (void) fprintf(stderr, gettext("missing dataset " 6372 "argument\n")); 6373 else if (argc == 1) 6374 (void) fprintf(stderr, 6375 gettext("missing mountpoint argument\n")); 6376 else 6377 (void) fprintf(stderr, gettext("too many arguments\n")); 6378 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6379 return (2); 6380 } 6381 6382 dataset = argv[0]; 6383 path = argv[1]; 6384 6385 /* try to open the dataset */ 6386 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6387 return (1); 6388 6389 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6390 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6391 6392 /* check for legacy mountpoint and complain appropriately */ 6393 ret = 0; 6394 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6395 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6396 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6397 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6398 strerror(errno)); 6399 ret = 1; 6400 } 6401 } else { 6402 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6403 "mounted using 'mount -F zfs'\n"), dataset); 6404 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6405 "instead.\n"), path); 6406 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6407 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6408 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6409 "information.\n")); 6410 ret = 1; 6411 } 6412 6413 return (ret); 6414} 6415 6416/* 6417 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6418 * unmounts of non-legacy filesystems, as this is the dominant administrative 6419 * interface. 6420 */ 6421static int 6422manual_unmount(int argc, char **argv) 6423{ 6424 int flags = 0; 6425 int c; 6426 6427 /* check options */ 6428 while ((c = getopt(argc, argv, "f")) != -1) { 6429 switch (c) { 6430 case 'f': 6431 flags = MS_FORCE; 6432 break; 6433 case '?': 6434 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6435 optopt); 6436 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6437 "<path>\n")); 6438 return (2); 6439 } 6440 } 6441 6442 argc -= optind; 6443 argv += optind; 6444 6445 /* check arguments */ 6446 if (argc != 1) { 6447 if (argc == 0) 6448 (void) fprintf(stderr, gettext("missing path " 6449 "argument\n")); 6450 else 6451 (void) fprintf(stderr, gettext("too many arguments\n")); 6452 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6453 return (2); 6454 } 6455 6456 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6457} 6458 6459static int 6460find_command_idx(char *command, int *idx) 6461{ 6462 int i; 6463 6464 for (i = 0; i < NCOMMAND; i++) { 6465 if (command_table[i].name == NULL) 6466 continue; 6467 6468 if (strcmp(command, command_table[i].name) == 0) { 6469 *idx = i; 6470 return (0); 6471 } 6472 } 6473 return (1); 6474} 6475 6476static int 6477zfs_do_diff(int argc, char **argv) 6478{ 6479 zfs_handle_t *zhp; 6480 int flags = 0; 6481 char *tosnap = NULL; 6482 char *fromsnap = NULL; 6483 char *atp, *copy; 6484 int err; 6485 int c; 6486 6487 while ((c = getopt(argc, argv, "FHt")) != -1) { 6488 switch (c) { 6489 case 'F': 6490 flags |= ZFS_DIFF_CLASSIFY; 6491 break; 6492 case 'H': 6493 flags |= ZFS_DIFF_PARSEABLE; 6494 break; 6495 case 't': 6496 flags |= ZFS_DIFF_TIMESTAMP; 6497 break; 6498 default: 6499 (void) fprintf(stderr, 6500 gettext("invalid option '%c'\n"), optopt); 6501 usage(B_FALSE); 6502 } 6503 } 6504 6505 argc -= optind; 6506 argv += optind; 6507 6508 if (argc < 1) { 6509 (void) fprintf(stderr, 6510 gettext("must provide at least one snapshot name\n")); 6511 usage(B_FALSE); 6512 } 6513 6514 if (argc > 2) { 6515 (void) fprintf(stderr, gettext("too many arguments\n")); 6516 usage(B_FALSE); 6517 } 6518 6519 fromsnap = argv[0]; 6520 tosnap = (argc == 2) ? argv[1] : NULL; 6521 6522 copy = NULL; 6523 if (*fromsnap != '@') 6524 copy = strdup(fromsnap); 6525 else if (tosnap) 6526 copy = strdup(tosnap); 6527 if (copy == NULL) 6528 usage(B_FALSE); 6529 6530 if (atp = strchr(copy, '@')) 6531 *atp = '\0'; 6532 6533 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6534 return (1); 6535 6536 free(copy); 6537 6538 /* 6539 * Ignore SIGPIPE so that the library can give us 6540 * information on any failure 6541 */ 6542 (void) sigignore(SIGPIPE); 6543 6544 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6545 6546 zfs_close(zhp); 6547 6548 return (err != 0); 6549} 6550 6551int 6552main(int argc, char **argv) 6553{ 6554 int ret; 6555 int i; 6556 char *progname; 6557 char *cmdname; 6558 6559 (void) setlocale(LC_ALL, ""); 6560 (void) textdomain(TEXT_DOMAIN); 6561 6562 opterr = 0; 6563 6564 if ((g_zfs = libzfs_init()) == NULL) { 6565 (void) fprintf(stderr, gettext("internal error: failed to " 6566 "initialize ZFS library\n")); 6567 return (1); 6568 } 6569 6570 zpool_set_history_str("zfs", argc, argv, history_str); 6571 verify(zpool_stage_history(g_zfs, history_str) == 0); 6572 6573 libzfs_print_on_error(g_zfs, B_TRUE); 6574 6575 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6576 (void) fprintf(stderr, gettext("internal error: unable to " 6577 "open %s\n"), MNTTAB); 6578 return (1); 6579 } 6580 6581 /* 6582 * This command also doubles as the /etc/fs mount and unmount program. 6583 * Determine if we should take this behavior based on argv[0]. 6584 */ 6585 progname = basename(argv[0]); 6586 if (strcmp(progname, "mount") == 0) { 6587 ret = manual_mount(argc, argv); 6588 } else if (strcmp(progname, "umount") == 0) { 6589 ret = manual_unmount(argc, argv); 6590 } else { 6591 /* 6592 * Make sure the user has specified some command. 6593 */ 6594 if (argc < 2) { 6595 (void) fprintf(stderr, gettext("missing command\n")); 6596 usage(B_FALSE); 6597 } 6598 6599 cmdname = argv[1]; 6600 6601 /* 6602 * The 'umount' command is an alias for 'unmount' 6603 */ 6604 if (strcmp(cmdname, "umount") == 0) 6605 cmdname = "unmount"; 6606 6607 /* 6608 * The 'recv' command is an alias for 'receive' 6609 */ 6610 if (strcmp(cmdname, "recv") == 0) 6611 cmdname = "receive"; 6612 6613 /* 6614 * Special case '-?' 6615 */ 6616 if (strcmp(cmdname, "-?") == 0) 6617 usage(B_TRUE); 6618 6619 /* 6620 * Run the appropriate command. 6621 */ 6622 libzfs_mnttab_cache(g_zfs, B_TRUE); 6623 if (find_command_idx(cmdname, &i) == 0) { 6624 current_command = &command_table[i]; 6625 ret = command_table[i].func(argc - 1, argv + 1); 6626 } else if (strchr(cmdname, '=') != NULL) { 6627 verify(find_command_idx("set", &i) == 0); 6628 current_command = &command_table[i]; 6629 ret = command_table[i].func(argc, argv); 6630 } else { 6631 (void) fprintf(stderr, gettext("unrecognized " 6632 "command '%s'\n"), cmdname); 6633 usage(B_FALSE); 6634 } 6635 libzfs_mnttab_cache(g_zfs, B_FALSE); 6636 } 6637 6638 (void) fclose(mnttab_file); 6639 6640 libzfs_fini(g_zfs); 6641 6642 /* 6643 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6644 * for the purposes of running ::findleaks. 6645 */ 6646 if (getenv("ZFS_ABORT") != NULL) { 6647 (void) printf("dumping core by request\n"); 6648 abort(); 6649 } 6650 6651 return (ret); 6652} 6653