zfs_main.c revision 230402
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 2011 Nexenta Systems, Inc. All rights reserved. 25 * Copyright (c) 2011 by Delphix. All rights reserved. 26 * Copyright (c) 2011 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 != ZPROP_INVAL) { 2842 if (zfs_prop_get(zhp, pl->pl_prop, property, 2843 sizeof (property), NULL, NULL, 0, B_FALSE) != 0) 2844 propstr = "-"; 2845 else 2846 propstr = property; 2847 2848 right_justify = zfs_prop_align_right(pl->pl_prop); 2849 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2850 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2851 property, sizeof (property), B_FALSE) != 0) 2852 propstr = "-"; 2853 else 2854 propstr = property; 2855 right_justify = B_TRUE; 2856 } else if (zfs_prop_written(pl->pl_user_prop)) { 2857 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2858 property, sizeof (property), B_FALSE) != 0) 2859 propstr = "-"; 2860 else 2861 propstr = property; 2862 right_justify = B_TRUE; 2863 } else { 2864 if (nvlist_lookup_nvlist(userprops, 2865 pl->pl_user_prop, &propval) != 0) 2866 propstr = "-"; 2867 else 2868 verify(nvlist_lookup_string(propval, 2869 ZPROP_VALUE, &propstr) == 0); 2870 right_justify = B_FALSE; 2871 } 2872 2873 width = pl->pl_width; 2874 2875 /* 2876 * If this is being called in scripted mode, or if this is the 2877 * last column and it is left-justified, don't include a width 2878 * format specifier. 2879 */ 2880 if (scripted || (pl->pl_next == NULL && !right_justify)) 2881 (void) printf("%s", propstr); 2882 else if (right_justify) 2883 (void) printf("%*s", width, propstr); 2884 else 2885 (void) printf("%-*s", width, propstr); 2886 } 2887 2888 (void) printf("\n"); 2889} 2890 2891/* 2892 * Generic callback function to list a dataset or snapshot. 2893 */ 2894static int 2895list_callback(zfs_handle_t *zhp, void *data) 2896{ 2897 list_cbdata_t *cbp = data; 2898 2899 if (cbp->cb_first) { 2900 if (!cbp->cb_scripted) 2901 print_header(cbp->cb_proplist); 2902 cbp->cb_first = B_FALSE; 2903 } 2904 2905 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted); 2906 2907 return (0); 2908} 2909 2910static int 2911zfs_do_list(int argc, char **argv) 2912{ 2913 int c; 2914 boolean_t scripted = B_FALSE; 2915 static char default_fields[] = 2916 "name,used,available,referenced,mountpoint"; 2917 int types = ZFS_TYPE_DATASET; 2918 boolean_t types_specified = B_FALSE; 2919 char *fields = NULL; 2920 list_cbdata_t cb = { 0 }; 2921 char *value; 2922 int limit = 0; 2923 int ret; 2924 zfs_sort_column_t *sortcol = NULL; 2925 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 2926 2927 /* check options */ 2928 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) { 2929 switch (c) { 2930 case 'o': 2931 fields = optarg; 2932 break; 2933 case 'd': 2934 limit = parse_depth(optarg, &flags); 2935 break; 2936 case 'r': 2937 flags |= ZFS_ITER_RECURSE; 2938 break; 2939 case 'H': 2940 scripted = B_TRUE; 2941 break; 2942 case 's': 2943 if (zfs_add_sort_column(&sortcol, optarg, 2944 B_FALSE) != 0) { 2945 (void) fprintf(stderr, 2946 gettext("invalid property '%s'\n"), optarg); 2947 usage(B_FALSE); 2948 } 2949 break; 2950 case 'S': 2951 if (zfs_add_sort_column(&sortcol, optarg, 2952 B_TRUE) != 0) { 2953 (void) fprintf(stderr, 2954 gettext("invalid property '%s'\n"), optarg); 2955 usage(B_FALSE); 2956 } 2957 break; 2958 case 't': 2959 types = 0; 2960 types_specified = B_TRUE; 2961 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 2962 while (*optarg != '\0') { 2963 static char *type_subopts[] = { "filesystem", 2964 "volume", "snapshot", "all", NULL }; 2965 2966 switch (getsubopt(&optarg, type_subopts, 2967 &value)) { 2968 case 0: 2969 types |= ZFS_TYPE_FILESYSTEM; 2970 break; 2971 case 1: 2972 types |= ZFS_TYPE_VOLUME; 2973 break; 2974 case 2: 2975 types |= ZFS_TYPE_SNAPSHOT; 2976 break; 2977 case 3: 2978 types = ZFS_TYPE_DATASET; 2979 break; 2980 2981 default: 2982 (void) fprintf(stderr, 2983 gettext("invalid type '%s'\n"), 2984 value); 2985 usage(B_FALSE); 2986 } 2987 } 2988 break; 2989 case ':': 2990 (void) fprintf(stderr, gettext("missing argument for " 2991 "'%c' option\n"), optopt); 2992 usage(B_FALSE); 2993 break; 2994 case '?': 2995 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2996 optopt); 2997 usage(B_FALSE); 2998 } 2999 } 3000 3001 argc -= optind; 3002 argv += optind; 3003 3004 if (fields == NULL) 3005 fields = default_fields; 3006 3007 /* 3008 * If "-o space" and no types were specified, don't display snapshots. 3009 */ 3010 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3011 types &= ~ZFS_TYPE_SNAPSHOT; 3012 3013 /* 3014 * If the user specifies '-o all', the zprop_get_list() doesn't 3015 * normally include the name of the dataset. For 'zfs list', we always 3016 * want this property to be first. 3017 */ 3018 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3019 != 0) 3020 usage(B_FALSE); 3021 3022 cb.cb_scripted = scripted; 3023 cb.cb_first = B_TRUE; 3024 3025 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3026 limit, list_callback, &cb); 3027 3028 zprop_free_list(cb.cb_proplist); 3029 zfs_free_sort_columns(sortcol); 3030 3031 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3032 (void) printf(gettext("no datasets available\n")); 3033 3034 return (ret); 3035} 3036 3037/* 3038 * zfs rename <fs | snap | vol> <fs | snap | vol> 3039 * zfs rename -p <fs | vol> <fs | vol> 3040 * zfs rename -r <snap> <snap> 3041 * zfs rename -u [-p] <fs> <fs> 3042 * 3043 * Renames the given dataset to another of the same type. 3044 * 3045 * The '-p' flag creates all the non-existing ancestors of the target first. 3046 */ 3047/* ARGSUSED */ 3048static int 3049zfs_do_rename(int argc, char **argv) 3050{ 3051 zfs_handle_t *zhp; 3052 renameflags_t flags = { 0 }; 3053 int c, ret, types; 3054 boolean_t parents = B_FALSE; 3055 3056 /* check options */ 3057 while ((c = getopt(argc, argv, "pru")) != -1) { 3058 switch (c) { 3059 case 'p': 3060 parents = B_TRUE; 3061 break; 3062 case 'r': 3063 flags.recurse = B_TRUE; 3064 break; 3065 case 'u': 3066 flags.nounmount = B_TRUE; 3067 break; 3068 case '?': 3069 default: 3070 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3071 optopt); 3072 usage(B_FALSE); 3073 } 3074 } 3075 3076 argc -= optind; 3077 argv += optind; 3078 3079 /* check number of arguments */ 3080 if (argc < 1) { 3081 (void) fprintf(stderr, gettext("missing source dataset " 3082 "argument\n")); 3083 usage(B_FALSE); 3084 } 3085 if (argc < 2) { 3086 (void) fprintf(stderr, gettext("missing target dataset " 3087 "argument\n")); 3088 usage(B_FALSE); 3089 } 3090 if (argc > 2) { 3091 (void) fprintf(stderr, gettext("too many arguments\n")); 3092 usage(B_FALSE); 3093 } 3094 3095 if (flags.recurse && parents) { 3096 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3097 "exclusive\n")); 3098 usage(B_FALSE); 3099 } 3100 3101 if (flags.recurse && strchr(argv[0], '@') == 0) { 3102 (void) fprintf(stderr, gettext("source dataset for recursive " 3103 "rename must be a snapshot\n")); 3104 usage(B_FALSE); 3105 } 3106 3107 if (flags.nounmount && parents) { 3108 (void) fprintf(stderr, gettext("-u and -r options are mutually " 3109 "exclusive\n")); 3110 usage(B_FALSE); 3111 } 3112 3113 if (flags.nounmount) 3114 types = ZFS_TYPE_FILESYSTEM; 3115 else if (parents) 3116 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3117 else 3118 types = ZFS_TYPE_DATASET; 3119 3120 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3121 return (1); 3122 3123 /* If we were asked and the name looks good, try to create ancestors. */ 3124 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3125 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3126 zfs_close(zhp); 3127 return (1); 3128 } 3129 3130 ret = (zfs_rename(zhp, argv[1], flags) != 0); 3131 3132 zfs_close(zhp); 3133 return (ret); 3134} 3135 3136/* 3137 * zfs promote <fs> 3138 * 3139 * Promotes the given clone fs to be the parent 3140 */ 3141/* ARGSUSED */ 3142static int 3143zfs_do_promote(int argc, char **argv) 3144{ 3145 zfs_handle_t *zhp; 3146 int ret; 3147 3148 /* check options */ 3149 if (argc > 1 && argv[1][0] == '-') { 3150 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3151 argv[1][1]); 3152 usage(B_FALSE); 3153 } 3154 3155 /* check number of arguments */ 3156 if (argc < 2) { 3157 (void) fprintf(stderr, gettext("missing clone filesystem" 3158 " argument\n")); 3159 usage(B_FALSE); 3160 } 3161 if (argc > 2) { 3162 (void) fprintf(stderr, gettext("too many arguments\n")); 3163 usage(B_FALSE); 3164 } 3165 3166 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3167 if (zhp == NULL) 3168 return (1); 3169 3170 ret = (zfs_promote(zhp) != 0); 3171 3172 3173 zfs_close(zhp); 3174 return (ret); 3175} 3176 3177/* 3178 * zfs rollback [-rRf] <snapshot> 3179 * 3180 * -r Delete any intervening snapshots before doing rollback 3181 * -R Delete any snapshots and their clones 3182 * -f ignored for backwards compatability 3183 * 3184 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3185 * since then and making it the active dataset. If more recent snapshots exist, 3186 * the command will complain unless the '-r' flag is given. 3187 */ 3188typedef struct rollback_cbdata { 3189 uint64_t cb_create; 3190 boolean_t cb_first; 3191 int cb_doclones; 3192 char *cb_target; 3193 int cb_error; 3194 boolean_t cb_recurse; 3195 boolean_t cb_dependent; 3196} rollback_cbdata_t; 3197 3198/* 3199 * Report any snapshots more recent than the one specified. Used when '-r' is 3200 * not specified. We reuse this same callback for the snapshot dependents - if 3201 * 'cb_dependent' is set, then this is a dependent and we should report it 3202 * without checking the transaction group. 3203 */ 3204static int 3205rollback_check(zfs_handle_t *zhp, void *data) 3206{ 3207 rollback_cbdata_t *cbp = data; 3208 3209 if (cbp->cb_doclones) { 3210 zfs_close(zhp); 3211 return (0); 3212 } 3213 3214 if (!cbp->cb_dependent) { 3215 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 && 3216 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3217 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3218 cbp->cb_create) { 3219 3220 if (cbp->cb_first && !cbp->cb_recurse) { 3221 (void) fprintf(stderr, gettext("cannot " 3222 "rollback to '%s': more recent snapshots " 3223 "exist\n"), 3224 cbp->cb_target); 3225 (void) fprintf(stderr, gettext("use '-r' to " 3226 "force deletion of the following " 3227 "snapshots:\n")); 3228 cbp->cb_first = 0; 3229 cbp->cb_error = 1; 3230 } 3231 3232 if (cbp->cb_recurse) { 3233 cbp->cb_dependent = B_TRUE; 3234 if (zfs_iter_dependents(zhp, B_TRUE, 3235 rollback_check, cbp) != 0) { 3236 zfs_close(zhp); 3237 return (-1); 3238 } 3239 cbp->cb_dependent = B_FALSE; 3240 } else { 3241 (void) fprintf(stderr, "%s\n", 3242 zfs_get_name(zhp)); 3243 } 3244 } 3245 } else { 3246 if (cbp->cb_first && cbp->cb_recurse) { 3247 (void) fprintf(stderr, gettext("cannot rollback to " 3248 "'%s': clones of previous snapshots exist\n"), 3249 cbp->cb_target); 3250 (void) fprintf(stderr, gettext("use '-R' to " 3251 "force deletion of the following clones and " 3252 "dependents:\n")); 3253 cbp->cb_first = 0; 3254 cbp->cb_error = 1; 3255 } 3256 3257 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3258 } 3259 3260 zfs_close(zhp); 3261 return (0); 3262} 3263 3264static int 3265zfs_do_rollback(int argc, char **argv) 3266{ 3267 int ret; 3268 int c; 3269 boolean_t force = B_FALSE; 3270 rollback_cbdata_t cb = { 0 }; 3271 zfs_handle_t *zhp, *snap; 3272 char parentname[ZFS_MAXNAMELEN]; 3273 char *delim; 3274 3275 /* check options */ 3276 while ((c = getopt(argc, argv, "rRf")) != -1) { 3277 switch (c) { 3278 case 'r': 3279 cb.cb_recurse = 1; 3280 break; 3281 case 'R': 3282 cb.cb_recurse = 1; 3283 cb.cb_doclones = 1; 3284 break; 3285 case 'f': 3286 force = B_TRUE; 3287 break; 3288 case '?': 3289 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3290 optopt); 3291 usage(B_FALSE); 3292 } 3293 } 3294 3295 argc -= optind; 3296 argv += optind; 3297 3298 /* check number of arguments */ 3299 if (argc < 1) { 3300 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3301 usage(B_FALSE); 3302 } 3303 if (argc > 1) { 3304 (void) fprintf(stderr, gettext("too many arguments\n")); 3305 usage(B_FALSE); 3306 } 3307 3308 /* open the snapshot */ 3309 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3310 return (1); 3311 3312 /* open the parent dataset */ 3313 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3314 verify((delim = strrchr(parentname, '@')) != NULL); 3315 *delim = '\0'; 3316 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3317 zfs_close(snap); 3318 return (1); 3319 } 3320 3321 /* 3322 * Check for more recent snapshots and/or clones based on the presence 3323 * of '-r' and '-R'. 3324 */ 3325 cb.cb_target = argv[0]; 3326 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3327 cb.cb_first = B_TRUE; 3328 cb.cb_error = 0; 3329 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0) 3330 goto out; 3331 3332 if ((ret = cb.cb_error) != 0) 3333 goto out; 3334 3335 /* 3336 * Rollback parent to the given snapshot. 3337 */ 3338 ret = zfs_rollback(zhp, snap, force); 3339 3340out: 3341 zfs_close(snap); 3342 zfs_close(zhp); 3343 3344 if (ret == 0) 3345 return (0); 3346 else 3347 return (1); 3348} 3349 3350/* 3351 * zfs set property=value { fs | snap | vol } ... 3352 * 3353 * Sets the given property for all datasets specified on the command line. 3354 */ 3355typedef struct set_cbdata { 3356 char *cb_propname; 3357 char *cb_value; 3358} set_cbdata_t; 3359 3360static int 3361set_callback(zfs_handle_t *zhp, void *data) 3362{ 3363 set_cbdata_t *cbp = data; 3364 3365 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3366 switch (libzfs_errno(g_zfs)) { 3367 case EZFS_MOUNTFAILED: 3368 (void) fprintf(stderr, gettext("property may be set " 3369 "but unable to remount filesystem\n")); 3370 break; 3371 case EZFS_SHARENFSFAILED: 3372 (void) fprintf(stderr, gettext("property may be set " 3373 "but unable to reshare filesystem\n")); 3374 break; 3375 } 3376 return (1); 3377 } 3378 return (0); 3379} 3380 3381static int 3382zfs_do_set(int argc, char **argv) 3383{ 3384 set_cbdata_t cb; 3385 int ret; 3386 3387 /* check for options */ 3388 if (argc > 1 && argv[1][0] == '-') { 3389 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3390 argv[1][1]); 3391 usage(B_FALSE); 3392 } 3393 3394 /* check number of arguments */ 3395 if (argc < 2) { 3396 (void) fprintf(stderr, gettext("missing property=value " 3397 "argument\n")); 3398 usage(B_FALSE); 3399 } 3400 if (argc < 3) { 3401 (void) fprintf(stderr, gettext("missing dataset name\n")); 3402 usage(B_FALSE); 3403 } 3404 3405 /* validate property=value argument */ 3406 cb.cb_propname = argv[1]; 3407 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3408 (cb.cb_value[1] == '\0')) { 3409 (void) fprintf(stderr, gettext("missing value in " 3410 "property=value argument\n")); 3411 usage(B_FALSE); 3412 } 3413 3414 *cb.cb_value = '\0'; 3415 cb.cb_value++; 3416 3417 if (*cb.cb_propname == '\0') { 3418 (void) fprintf(stderr, 3419 gettext("missing property in property=value argument\n")); 3420 usage(B_FALSE); 3421 } 3422 3423 ret = zfs_for_each(argc - 2, argv + 2, 0, 3424 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3425 3426 return (ret); 3427} 3428 3429/* 3430 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3431 * 3432 * Creates a snapshot with the given name. While functionally equivalent to 3433 * 'zfs create', it is a separate command to differentiate intent. 3434 */ 3435static int 3436zfs_do_snapshot(int argc, char **argv) 3437{ 3438 boolean_t recursive = B_FALSE; 3439 int ret; 3440 char c; 3441 nvlist_t *props; 3442 3443 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3444 nomem(); 3445 3446 /* check options */ 3447 while ((c = getopt(argc, argv, "ro:")) != -1) { 3448 switch (c) { 3449 case 'o': 3450 if (parseprop(props)) 3451 return (1); 3452 break; 3453 case 'r': 3454 recursive = B_TRUE; 3455 break; 3456 case '?': 3457 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3458 optopt); 3459 goto usage; 3460 } 3461 } 3462 3463 argc -= optind; 3464 argv += optind; 3465 3466 /* check number of arguments */ 3467 if (argc < 1) { 3468 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3469 goto usage; 3470 } 3471 if (argc > 1) { 3472 (void) fprintf(stderr, gettext("too many arguments\n")); 3473 goto usage; 3474 } 3475 3476 ret = zfs_snapshot(g_zfs, argv[0], recursive, props); 3477 nvlist_free(props); 3478 if (ret && recursive) 3479 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3480 return (ret != 0); 3481 3482usage: 3483 nvlist_free(props); 3484 usage(B_FALSE); 3485 return (-1); 3486} 3487 3488/* 3489 * Send a backup stream to stdout. 3490 */ 3491static int 3492zfs_do_send(int argc, char **argv) 3493{ 3494 char *fromname = NULL; 3495 char *toname = NULL; 3496 char *cp; 3497 zfs_handle_t *zhp; 3498 sendflags_t flags = { 0 }; 3499 int c, err; 3500 nvlist_t *dbgnv = NULL; 3501 boolean_t extraverbose = B_FALSE; 3502 3503 /* check options */ 3504 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) { 3505 switch (c) { 3506 case 'i': 3507 if (fromname) 3508 usage(B_FALSE); 3509 fromname = optarg; 3510 break; 3511 case 'I': 3512 if (fromname) 3513 usage(B_FALSE); 3514 fromname = optarg; 3515 flags.doall = B_TRUE; 3516 break; 3517 case 'R': 3518 flags.replicate = B_TRUE; 3519 break; 3520 case 'p': 3521 flags.props = B_TRUE; 3522 break; 3523 case 'P': 3524 flags.parsable = B_TRUE; 3525 flags.verbose = B_TRUE; 3526 break; 3527 case 'v': 3528 if (flags.verbose) 3529 extraverbose = B_TRUE; 3530 flags.verbose = B_TRUE; 3531 break; 3532 case 'D': 3533 flags.dedup = B_TRUE; 3534 break; 3535 case 'n': 3536 flags.dryrun = B_TRUE; 3537 break; 3538 case ':': 3539 (void) fprintf(stderr, gettext("missing argument for " 3540 "'%c' option\n"), optopt); 3541 usage(B_FALSE); 3542 break; 3543 case '?': 3544 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3545 optopt); 3546 usage(B_FALSE); 3547 } 3548 } 3549 3550 argc -= optind; 3551 argv += optind; 3552 3553 /* check number of arguments */ 3554 if (argc < 1) { 3555 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3556 usage(B_FALSE); 3557 } 3558 if (argc > 1) { 3559 (void) fprintf(stderr, gettext("too many arguments\n")); 3560 usage(B_FALSE); 3561 } 3562 3563 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3564 (void) fprintf(stderr, 3565 gettext("Error: Stream can not be written to a terminal.\n" 3566 "You must redirect standard output.\n")); 3567 return (1); 3568 } 3569 3570 cp = strchr(argv[0], '@'); 3571 if (cp == NULL) { 3572 (void) fprintf(stderr, 3573 gettext("argument must be a snapshot\n")); 3574 usage(B_FALSE); 3575 } 3576 *cp = '\0'; 3577 toname = cp + 1; 3578 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3579 if (zhp == NULL) 3580 return (1); 3581 3582 /* 3583 * If they specified the full path to the snapshot, chop off 3584 * everything except the short name of the snapshot, but special 3585 * case if they specify the origin. 3586 */ 3587 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3588 char origin[ZFS_MAXNAMELEN]; 3589 zprop_source_t src; 3590 3591 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3592 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3593 3594 if (strcmp(origin, fromname) == 0) { 3595 fromname = NULL; 3596 flags.fromorigin = B_TRUE; 3597 } else { 3598 *cp = '\0'; 3599 if (cp != fromname && strcmp(argv[0], fromname)) { 3600 (void) fprintf(stderr, 3601 gettext("incremental source must be " 3602 "in same filesystem\n")); 3603 usage(B_FALSE); 3604 } 3605 fromname = cp + 1; 3606 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3607 (void) fprintf(stderr, 3608 gettext("invalid incremental source\n")); 3609 usage(B_FALSE); 3610 } 3611 } 3612 } 3613 3614 if (flags.replicate && fromname == NULL) 3615 flags.doall = B_TRUE; 3616 3617 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3618 extraverbose ? &dbgnv : NULL); 3619 3620 if (extraverbose && dbgnv != NULL) { 3621 /* 3622 * dump_nvlist prints to stdout, but that's been 3623 * redirected to a file. Make it print to stderr 3624 * instead. 3625 */ 3626 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3627 dump_nvlist(dbgnv, 0); 3628 nvlist_free(dbgnv); 3629 } 3630 zfs_close(zhp); 3631 3632 return (err != 0); 3633} 3634 3635/* 3636 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3637 * 3638 * Restore a backup stream from stdin. 3639 */ 3640static int 3641zfs_do_receive(int argc, char **argv) 3642{ 3643 int c, err; 3644 recvflags_t flags = { 0 }; 3645 3646 /* check options */ 3647 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3648 switch (c) { 3649 case 'd': 3650 flags.isprefix = B_TRUE; 3651 break; 3652 case 'e': 3653 flags.isprefix = B_TRUE; 3654 flags.istail = B_TRUE; 3655 break; 3656 case 'n': 3657 flags.dryrun = B_TRUE; 3658 break; 3659 case 'u': 3660 flags.nomount = B_TRUE; 3661 break; 3662 case 'v': 3663 flags.verbose = B_TRUE; 3664 break; 3665 case 'F': 3666 flags.force = B_TRUE; 3667 break; 3668 case ':': 3669 (void) fprintf(stderr, gettext("missing argument for " 3670 "'%c' option\n"), optopt); 3671 usage(B_FALSE); 3672 break; 3673 case '?': 3674 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3675 optopt); 3676 usage(B_FALSE); 3677 } 3678 } 3679 3680 argc -= optind; 3681 argv += optind; 3682 3683 /* check number of arguments */ 3684 if (argc < 1) { 3685 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3686 usage(B_FALSE); 3687 } 3688 if (argc > 1) { 3689 (void) fprintf(stderr, gettext("too many arguments\n")); 3690 usage(B_FALSE); 3691 } 3692 3693 if (isatty(STDIN_FILENO)) { 3694 (void) fprintf(stderr, 3695 gettext("Error: Backup stream can not be read " 3696 "from a terminal.\n" 3697 "You must redirect standard input.\n")); 3698 return (1); 3699 } 3700 3701 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3702 3703 return (err != 0); 3704} 3705 3706/* 3707 * allow/unallow stuff 3708 */ 3709/* copied from zfs/sys/dsl_deleg.h */ 3710#define ZFS_DELEG_PERM_CREATE "create" 3711#define ZFS_DELEG_PERM_DESTROY "destroy" 3712#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3713#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3714#define ZFS_DELEG_PERM_CLONE "clone" 3715#define ZFS_DELEG_PERM_PROMOTE "promote" 3716#define ZFS_DELEG_PERM_RENAME "rename" 3717#define ZFS_DELEG_PERM_MOUNT "mount" 3718#define ZFS_DELEG_PERM_SHARE "share" 3719#define ZFS_DELEG_PERM_SEND "send" 3720#define ZFS_DELEG_PERM_RECEIVE "receive" 3721#define ZFS_DELEG_PERM_ALLOW "allow" 3722#define ZFS_DELEG_PERM_USERPROP "userprop" 3723#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3724#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3725#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3726#define ZFS_DELEG_PERM_USERUSED "userused" 3727#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3728#define ZFS_DELEG_PERM_HOLD "hold" 3729#define ZFS_DELEG_PERM_RELEASE "release" 3730#define ZFS_DELEG_PERM_DIFF "diff" 3731 3732#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3733 3734static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3735 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3736 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3737 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3738 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3739 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3740 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3741 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3742 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3743 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3744 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3745 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3746 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3747 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3748 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3749 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3750 3751 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3752 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3753 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3754 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3755 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3756 { NULL, ZFS_DELEG_NOTE_NONE } 3757}; 3758 3759/* permission structure */ 3760typedef struct deleg_perm { 3761 zfs_deleg_who_type_t dp_who_type; 3762 const char *dp_name; 3763 boolean_t dp_local; 3764 boolean_t dp_descend; 3765} deleg_perm_t; 3766 3767/* */ 3768typedef struct deleg_perm_node { 3769 deleg_perm_t dpn_perm; 3770 3771 uu_avl_node_t dpn_avl_node; 3772} deleg_perm_node_t; 3773 3774typedef struct fs_perm fs_perm_t; 3775 3776/* permissions set */ 3777typedef struct who_perm { 3778 zfs_deleg_who_type_t who_type; 3779 const char *who_name; /* id */ 3780 char who_ug_name[256]; /* user/group name */ 3781 fs_perm_t *who_fsperm; /* uplink */ 3782 3783 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3784} who_perm_t; 3785 3786/* */ 3787typedef struct who_perm_node { 3788 who_perm_t who_perm; 3789 uu_avl_node_t who_avl_node; 3790} who_perm_node_t; 3791 3792typedef struct fs_perm_set fs_perm_set_t; 3793/* fs permissions */ 3794struct fs_perm { 3795 const char *fsp_name; 3796 3797 uu_avl_t *fsp_sc_avl; /* sets,create */ 3798 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 3799 3800 fs_perm_set_t *fsp_set; /* uplink */ 3801}; 3802 3803/* */ 3804typedef struct fs_perm_node { 3805 fs_perm_t fspn_fsperm; 3806 uu_avl_t *fspn_avl; 3807 3808 uu_list_node_t fspn_list_node; 3809} fs_perm_node_t; 3810 3811/* top level structure */ 3812struct fs_perm_set { 3813 uu_list_pool_t *fsps_list_pool; 3814 uu_list_t *fsps_list; /* list of fs_perms */ 3815 3816 uu_avl_pool_t *fsps_named_set_avl_pool; 3817 uu_avl_pool_t *fsps_who_perm_avl_pool; 3818 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 3819}; 3820 3821static inline const char * 3822deleg_perm_type(zfs_deleg_note_t note) 3823{ 3824 /* subcommands */ 3825 switch (note) { 3826 /* SUBCOMMANDS */ 3827 /* OTHER */ 3828 case ZFS_DELEG_NOTE_GROUPQUOTA: 3829 case ZFS_DELEG_NOTE_GROUPUSED: 3830 case ZFS_DELEG_NOTE_USERPROP: 3831 case ZFS_DELEG_NOTE_USERQUOTA: 3832 case ZFS_DELEG_NOTE_USERUSED: 3833 /* other */ 3834 return (gettext("other")); 3835 default: 3836 return (gettext("subcommand")); 3837 } 3838} 3839 3840static int inline 3841who_type2weight(zfs_deleg_who_type_t who_type) 3842{ 3843 int res; 3844 switch (who_type) { 3845 case ZFS_DELEG_NAMED_SET_SETS: 3846 case ZFS_DELEG_NAMED_SET: 3847 res = 0; 3848 break; 3849 case ZFS_DELEG_CREATE_SETS: 3850 case ZFS_DELEG_CREATE: 3851 res = 1; 3852 break; 3853 case ZFS_DELEG_USER_SETS: 3854 case ZFS_DELEG_USER: 3855 res = 2; 3856 break; 3857 case ZFS_DELEG_GROUP_SETS: 3858 case ZFS_DELEG_GROUP: 3859 res = 3; 3860 break; 3861 case ZFS_DELEG_EVERYONE_SETS: 3862 case ZFS_DELEG_EVERYONE: 3863 res = 4; 3864 break; 3865 default: 3866 res = -1; 3867 } 3868 3869 return (res); 3870} 3871 3872/* ARGSUSED */ 3873static int 3874who_perm_compare(const void *larg, const void *rarg, void *unused) 3875{ 3876 const who_perm_node_t *l = larg; 3877 const who_perm_node_t *r = rarg; 3878 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 3879 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 3880 int lweight = who_type2weight(ltype); 3881 int rweight = who_type2weight(rtype); 3882 int res = lweight - rweight; 3883 if (res == 0) 3884 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 3885 ZFS_MAX_DELEG_NAME-1); 3886 3887 if (res == 0) 3888 return (0); 3889 if (res > 0) 3890 return (1); 3891 else 3892 return (-1); 3893} 3894 3895/* ARGSUSED */ 3896static int 3897deleg_perm_compare(const void *larg, const void *rarg, void *unused) 3898{ 3899 const deleg_perm_node_t *l = larg; 3900 const deleg_perm_node_t *r = rarg; 3901 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 3902 ZFS_MAX_DELEG_NAME-1); 3903 3904 if (res == 0) 3905 return (0); 3906 3907 if (res > 0) 3908 return (1); 3909 else 3910 return (-1); 3911} 3912 3913static inline void 3914fs_perm_set_init(fs_perm_set_t *fspset) 3915{ 3916 bzero(fspset, sizeof (fs_perm_set_t)); 3917 3918 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 3919 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 3920 NULL, UU_DEFAULT)) == NULL) 3921 nomem(); 3922 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 3923 UU_DEFAULT)) == NULL) 3924 nomem(); 3925 3926 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 3927 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 3928 who_perm_node_t, who_avl_node), who_perm_compare, 3929 UU_DEFAULT)) == NULL) 3930 nomem(); 3931 3932 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 3933 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 3934 who_perm_node_t, who_avl_node), who_perm_compare, 3935 UU_DEFAULT)) == NULL) 3936 nomem(); 3937 3938 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 3939 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 3940 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 3941 == NULL) 3942 nomem(); 3943} 3944 3945static inline void fs_perm_fini(fs_perm_t *); 3946static inline void who_perm_fini(who_perm_t *); 3947 3948static inline void 3949fs_perm_set_fini(fs_perm_set_t *fspset) 3950{ 3951 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 3952 3953 while (node != NULL) { 3954 fs_perm_node_t *next_node = 3955 uu_list_next(fspset->fsps_list, node); 3956 fs_perm_t *fsperm = &node->fspn_fsperm; 3957 fs_perm_fini(fsperm); 3958 uu_list_remove(fspset->fsps_list, node); 3959 free(node); 3960 node = next_node; 3961 } 3962 3963 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 3964 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 3965 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 3966} 3967 3968static inline void 3969deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 3970 const char *name) 3971{ 3972 deleg_perm->dp_who_type = type; 3973 deleg_perm->dp_name = name; 3974} 3975 3976static inline void 3977who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 3978 zfs_deleg_who_type_t type, const char *name) 3979{ 3980 uu_avl_pool_t *pool; 3981 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 3982 3983 bzero(who_perm, sizeof (who_perm_t)); 3984 3985 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 3986 UU_DEFAULT)) == NULL) 3987 nomem(); 3988 3989 who_perm->who_type = type; 3990 who_perm->who_name = name; 3991 who_perm->who_fsperm = fsperm; 3992} 3993 3994static inline void 3995who_perm_fini(who_perm_t *who_perm) 3996{ 3997 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 3998 3999 while (node != NULL) { 4000 deleg_perm_node_t *next_node = 4001 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4002 4003 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4004 free(node); 4005 node = next_node; 4006 } 4007 4008 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4009} 4010 4011static inline void 4012fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4013{ 4014 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4015 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4016 4017 bzero(fsperm, sizeof (fs_perm_t)); 4018 4019 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4020 == NULL) 4021 nomem(); 4022 4023 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4024 == NULL) 4025 nomem(); 4026 4027 fsperm->fsp_set = fspset; 4028 fsperm->fsp_name = fsname; 4029} 4030 4031static inline void 4032fs_perm_fini(fs_perm_t *fsperm) 4033{ 4034 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4035 while (node != NULL) { 4036 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4037 node); 4038 who_perm_t *who_perm = &node->who_perm; 4039 who_perm_fini(who_perm); 4040 uu_avl_remove(fsperm->fsp_sc_avl, node); 4041 free(node); 4042 node = next_node; 4043 } 4044 4045 node = uu_avl_first(fsperm->fsp_uge_avl); 4046 while (node != NULL) { 4047 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4048 node); 4049 who_perm_t *who_perm = &node->who_perm; 4050 who_perm_fini(who_perm); 4051 uu_avl_remove(fsperm->fsp_uge_avl, node); 4052 free(node); 4053 node = next_node; 4054 } 4055 4056 uu_avl_destroy(fsperm->fsp_sc_avl); 4057 uu_avl_destroy(fsperm->fsp_uge_avl); 4058} 4059 4060static void inline 4061set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4062 zfs_deleg_who_type_t who_type, const char *name, char locality) 4063{ 4064 uu_avl_index_t idx = 0; 4065 4066 deleg_perm_node_t *found_node = NULL; 4067 deleg_perm_t *deleg_perm = &node->dpn_perm; 4068 4069 deleg_perm_init(deleg_perm, who_type, name); 4070 4071 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4072 == NULL) 4073 uu_avl_insert(avl, node, idx); 4074 else { 4075 node = found_node; 4076 deleg_perm = &node->dpn_perm; 4077 } 4078 4079 4080 switch (locality) { 4081 case ZFS_DELEG_LOCAL: 4082 deleg_perm->dp_local = B_TRUE; 4083 break; 4084 case ZFS_DELEG_DESCENDENT: 4085 deleg_perm->dp_descend = B_TRUE; 4086 break; 4087 case ZFS_DELEG_NA: 4088 break; 4089 default: 4090 assert(B_FALSE); /* invalid locality */ 4091 } 4092} 4093 4094static inline int 4095parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4096{ 4097 nvpair_t *nvp = NULL; 4098 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4099 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4100 zfs_deleg_who_type_t who_type = who_perm->who_type; 4101 4102 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4103 const char *name = nvpair_name(nvp); 4104 data_type_t type = nvpair_type(nvp); 4105 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4106 deleg_perm_node_t *node = 4107 safe_malloc(sizeof (deleg_perm_node_t)); 4108 4109 assert(type == DATA_TYPE_BOOLEAN); 4110 4111 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4112 set_deleg_perm_node(avl, node, who_type, name, locality); 4113 } 4114 4115 return (0); 4116} 4117 4118static inline int 4119parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4120{ 4121 nvpair_t *nvp = NULL; 4122 fs_perm_set_t *fspset = fsperm->fsp_set; 4123 4124 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4125 nvlist_t *nvl2 = NULL; 4126 const char *name = nvpair_name(nvp); 4127 uu_avl_t *avl = NULL; 4128 uu_avl_pool_t *avl_pool; 4129 zfs_deleg_who_type_t perm_type = name[0]; 4130 char perm_locality = name[1]; 4131 const char *perm_name = name + 3; 4132 boolean_t is_set = B_TRUE; 4133 who_perm_t *who_perm = NULL; 4134 4135 assert('$' == name[2]); 4136 4137 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4138 return (-1); 4139 4140 switch (perm_type) { 4141 case ZFS_DELEG_CREATE: 4142 case ZFS_DELEG_CREATE_SETS: 4143 case ZFS_DELEG_NAMED_SET: 4144 case ZFS_DELEG_NAMED_SET_SETS: 4145 avl_pool = fspset->fsps_named_set_avl_pool; 4146 avl = fsperm->fsp_sc_avl; 4147 break; 4148 case ZFS_DELEG_USER: 4149 case ZFS_DELEG_USER_SETS: 4150 case ZFS_DELEG_GROUP: 4151 case ZFS_DELEG_GROUP_SETS: 4152 case ZFS_DELEG_EVERYONE: 4153 case ZFS_DELEG_EVERYONE_SETS: 4154 avl_pool = fspset->fsps_who_perm_avl_pool; 4155 avl = fsperm->fsp_uge_avl; 4156 break; 4157 } 4158 4159 if (is_set) { 4160 who_perm_node_t *found_node = NULL; 4161 who_perm_node_t *node = safe_malloc( 4162 sizeof (who_perm_node_t)); 4163 who_perm = &node->who_perm; 4164 uu_avl_index_t idx = 0; 4165 4166 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4167 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4168 4169 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4170 == NULL) { 4171 if (avl == fsperm->fsp_uge_avl) { 4172 uid_t rid = 0; 4173 struct passwd *p = NULL; 4174 struct group *g = NULL; 4175 const char *nice_name = NULL; 4176 4177 switch (perm_type) { 4178 case ZFS_DELEG_USER_SETS: 4179 case ZFS_DELEG_USER: 4180 rid = atoi(perm_name); 4181 p = getpwuid(rid); 4182 if (p) 4183 nice_name = p->pw_name; 4184 break; 4185 case ZFS_DELEG_GROUP_SETS: 4186 case ZFS_DELEG_GROUP: 4187 rid = atoi(perm_name); 4188 g = getgrgid(rid); 4189 if (g) 4190 nice_name = g->gr_name; 4191 break; 4192 } 4193 4194 if (nice_name != NULL) 4195 (void) strlcpy( 4196 node->who_perm.who_ug_name, 4197 nice_name, 256); 4198 } 4199 4200 uu_avl_insert(avl, node, idx); 4201 } else { 4202 node = found_node; 4203 who_perm = &node->who_perm; 4204 } 4205 } 4206 4207 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4208 } 4209 4210 return (0); 4211} 4212 4213static inline int 4214parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4215{ 4216 nvpair_t *nvp = NULL; 4217 uu_avl_index_t idx = 0; 4218 4219 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4220 nvlist_t *nvl2 = NULL; 4221 const char *fsname = nvpair_name(nvp); 4222 data_type_t type = nvpair_type(nvp); 4223 fs_perm_t *fsperm = NULL; 4224 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4225 if (node == NULL) 4226 nomem(); 4227 4228 fsperm = &node->fspn_fsperm; 4229 4230 assert(DATA_TYPE_NVLIST == type); 4231 4232 uu_list_node_init(node, &node->fspn_list_node, 4233 fspset->fsps_list_pool); 4234 4235 idx = uu_list_numnodes(fspset->fsps_list); 4236 fs_perm_init(fsperm, fspset, fsname); 4237 4238 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4239 return (-1); 4240 4241 (void) parse_fs_perm(fsperm, nvl2); 4242 4243 uu_list_insert(fspset->fsps_list, node, idx); 4244 } 4245 4246 return (0); 4247} 4248 4249static inline const char * 4250deleg_perm_comment(zfs_deleg_note_t note) 4251{ 4252 const char *str = ""; 4253 4254 /* subcommands */ 4255 switch (note) { 4256 /* SUBCOMMANDS */ 4257 case ZFS_DELEG_NOTE_ALLOW: 4258 str = gettext("Must also have the permission that is being" 4259 "\n\t\t\t\tallowed"); 4260 break; 4261 case ZFS_DELEG_NOTE_CLONE: 4262 str = gettext("Must also have the 'create' ability and 'mount'" 4263 "\n\t\t\t\tability in the origin file system"); 4264 break; 4265 case ZFS_DELEG_NOTE_CREATE: 4266 str = gettext("Must also have the 'mount' ability"); 4267 break; 4268 case ZFS_DELEG_NOTE_DESTROY: 4269 str = gettext("Must also have the 'mount' ability"); 4270 break; 4271 case ZFS_DELEG_NOTE_DIFF: 4272 str = gettext("Allows lookup of paths within a dataset;" 4273 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4274 "\n\t\t\t\tin order to use zfs diff"); 4275 break; 4276 case ZFS_DELEG_NOTE_HOLD: 4277 str = gettext("Allows adding a user hold to a snapshot"); 4278 break; 4279 case ZFS_DELEG_NOTE_MOUNT: 4280 str = gettext("Allows mount/umount of ZFS datasets"); 4281 break; 4282 case ZFS_DELEG_NOTE_PROMOTE: 4283 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4284 " 'promote' ability in the origin file system"); 4285 break; 4286 case ZFS_DELEG_NOTE_RECEIVE: 4287 str = gettext("Must also have the 'mount' and 'create'" 4288 " ability"); 4289 break; 4290 case ZFS_DELEG_NOTE_RELEASE: 4291 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4292 "might destroy the snapshot"); 4293 break; 4294 case ZFS_DELEG_NOTE_RENAME: 4295 str = gettext("Must also have the 'mount' and 'create'" 4296 "\n\t\t\t\tability in the new parent"); 4297 break; 4298 case ZFS_DELEG_NOTE_ROLLBACK: 4299 str = gettext(""); 4300 break; 4301 case ZFS_DELEG_NOTE_SEND: 4302 str = gettext(""); 4303 break; 4304 case ZFS_DELEG_NOTE_SHARE: 4305 str = gettext("Allows sharing file systems over NFS or SMB" 4306 "\n\t\t\t\tprotocols"); 4307 break; 4308 case ZFS_DELEG_NOTE_SNAPSHOT: 4309 str = gettext(""); 4310 break; 4311/* 4312 * case ZFS_DELEG_NOTE_VSCAN: 4313 * str = gettext(""); 4314 * break; 4315 */ 4316 /* OTHER */ 4317 case ZFS_DELEG_NOTE_GROUPQUOTA: 4318 str = gettext("Allows accessing any groupquota@... property"); 4319 break; 4320 case ZFS_DELEG_NOTE_GROUPUSED: 4321 str = gettext("Allows reading any groupused@... property"); 4322 break; 4323 case ZFS_DELEG_NOTE_USERPROP: 4324 str = gettext("Allows changing any user property"); 4325 break; 4326 case ZFS_DELEG_NOTE_USERQUOTA: 4327 str = gettext("Allows accessing any userquota@... property"); 4328 break; 4329 case ZFS_DELEG_NOTE_USERUSED: 4330 str = gettext("Allows reading any userused@... property"); 4331 break; 4332 /* other */ 4333 default: 4334 str = ""; 4335 } 4336 4337 return (str); 4338} 4339 4340struct allow_opts { 4341 boolean_t local; 4342 boolean_t descend; 4343 boolean_t user; 4344 boolean_t group; 4345 boolean_t everyone; 4346 boolean_t create; 4347 boolean_t set; 4348 boolean_t recursive; /* unallow only */ 4349 boolean_t prt_usage; 4350 4351 boolean_t prt_perms; 4352 char *who; 4353 char *perms; 4354 const char *dataset; 4355}; 4356 4357static inline int 4358prop_cmp(const void *a, const void *b) 4359{ 4360 const char *str1 = *(const char **)a; 4361 const char *str2 = *(const char **)b; 4362 return (strcmp(str1, str2)); 4363} 4364 4365static void 4366allow_usage(boolean_t un, boolean_t requested, const char *msg) 4367{ 4368 const char *opt_desc[] = { 4369 "-h", gettext("show this help message and exit"), 4370 "-l", gettext("set permission locally"), 4371 "-d", gettext("set permission for descents"), 4372 "-u", gettext("set permission for user"), 4373 "-g", gettext("set permission for group"), 4374 "-e", gettext("set permission for everyone"), 4375 "-c", gettext("set create time permission"), 4376 "-s", gettext("define permission set"), 4377 /* unallow only */ 4378 "-r", gettext("remove permissions recursively"), 4379 }; 4380 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4381 size_t allow_size = unallow_size - 2; 4382 const char *props[ZFS_NUM_PROPS]; 4383 int i; 4384 size_t count = 0; 4385 FILE *fp = requested ? stdout : stderr; 4386 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4387 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4388 4389 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4390 HELP_ALLOW)); 4391 (void) fprintf(fp, gettext("Options:\n")); 4392 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4393 const char *opt = opt_desc[i++]; 4394 const char *optdsc = opt_desc[i]; 4395 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4396 } 4397 4398 (void) fprintf(fp, gettext("\nThe following permissions are " 4399 "supported:\n\n")); 4400 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4401 gettext("NOTES")); 4402 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4403 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4404 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4405 const char *perm_type = deleg_perm_type(perm_note); 4406 const char *perm_comment = deleg_perm_comment(perm_note); 4407 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4408 } 4409 4410 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4411 zprop_desc_t *pd = &pdtbl[i]; 4412 if (pd->pd_visible != B_TRUE) 4413 continue; 4414 4415 if (pd->pd_attr == PROP_READONLY) 4416 continue; 4417 4418 props[count++] = pd->pd_name; 4419 } 4420 props[count] = NULL; 4421 4422 qsort(props, count, sizeof (char *), prop_cmp); 4423 4424 for (i = 0; i < count; i++) 4425 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4426 4427 if (msg != NULL) 4428 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4429 4430 exit(requested ? 0 : 2); 4431} 4432 4433static inline const char * 4434munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4435 char **permsp) 4436{ 4437 if (un && argc == expected_argc - 1) 4438 *permsp = NULL; 4439 else if (argc == expected_argc) 4440 *permsp = argv[argc - 2]; 4441 else 4442 allow_usage(un, B_FALSE, 4443 gettext("wrong number of parameters\n")); 4444 4445 return (argv[argc - 1]); 4446} 4447 4448static void 4449parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4450{ 4451 int uge_sum = opts->user + opts->group + opts->everyone; 4452 int csuge_sum = opts->create + opts->set + uge_sum; 4453 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4454 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4455 4456 if (uge_sum > 1) 4457 allow_usage(un, B_FALSE, 4458 gettext("-u, -g, and -e are mutually exclusive\n")); 4459 4460 if (opts->prt_usage) 4461 if (argc == 0 && all_sum == 0) 4462 allow_usage(un, B_TRUE, NULL); 4463 else 4464 usage(B_FALSE); 4465 4466 if (opts->set) { 4467 if (csuge_sum > 1) 4468 allow_usage(un, B_FALSE, 4469 gettext("invalid options combined with -s\n")); 4470 4471 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4472 if (argv[0][0] != '@') 4473 allow_usage(un, B_FALSE, 4474 gettext("invalid set name: missing '@' prefix\n")); 4475 opts->who = argv[0]; 4476 } else if (opts->create) { 4477 if (ldcsuge_sum > 1) 4478 allow_usage(un, B_FALSE, 4479 gettext("invalid options combined with -c\n")); 4480 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4481 } else if (opts->everyone) { 4482 if (csuge_sum > 1) 4483 allow_usage(un, B_FALSE, 4484 gettext("invalid options combined with -e\n")); 4485 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4486 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4487 == 0) { 4488 opts->everyone = B_TRUE; 4489 argc--; 4490 argv++; 4491 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4492 } else if (argc == 1) { 4493 opts->prt_perms = B_TRUE; 4494 opts->dataset = argv[argc-1]; 4495 } else { 4496 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4497 opts->who = argv[0]; 4498 } 4499 4500 if (!opts->local && !opts->descend) { 4501 opts->local = B_TRUE; 4502 opts->descend = B_TRUE; 4503 } 4504} 4505 4506static void 4507store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4508 const char *who, char *perms, nvlist_t *top_nvl) 4509{ 4510 int i; 4511 char ld[2] = { '\0', '\0' }; 4512 char who_buf[ZFS_MAXNAMELEN+32]; 4513 char base_type; 4514 char set_type; 4515 nvlist_t *base_nvl = NULL; 4516 nvlist_t *set_nvl = NULL; 4517 nvlist_t *nvl; 4518 4519 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4520 nomem(); 4521 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4522 nomem(); 4523 4524 switch (type) { 4525 case ZFS_DELEG_NAMED_SET_SETS: 4526 case ZFS_DELEG_NAMED_SET: 4527 set_type = ZFS_DELEG_NAMED_SET_SETS; 4528 base_type = ZFS_DELEG_NAMED_SET; 4529 ld[0] = ZFS_DELEG_NA; 4530 break; 4531 case ZFS_DELEG_CREATE_SETS: 4532 case ZFS_DELEG_CREATE: 4533 set_type = ZFS_DELEG_CREATE_SETS; 4534 base_type = ZFS_DELEG_CREATE; 4535 ld[0] = ZFS_DELEG_NA; 4536 break; 4537 case ZFS_DELEG_USER_SETS: 4538 case ZFS_DELEG_USER: 4539 set_type = ZFS_DELEG_USER_SETS; 4540 base_type = ZFS_DELEG_USER; 4541 if (local) 4542 ld[0] = ZFS_DELEG_LOCAL; 4543 if (descend) 4544 ld[1] = ZFS_DELEG_DESCENDENT; 4545 break; 4546 case ZFS_DELEG_GROUP_SETS: 4547 case ZFS_DELEG_GROUP: 4548 set_type = ZFS_DELEG_GROUP_SETS; 4549 base_type = ZFS_DELEG_GROUP; 4550 if (local) 4551 ld[0] = ZFS_DELEG_LOCAL; 4552 if (descend) 4553 ld[1] = ZFS_DELEG_DESCENDENT; 4554 break; 4555 case ZFS_DELEG_EVERYONE_SETS: 4556 case ZFS_DELEG_EVERYONE: 4557 set_type = ZFS_DELEG_EVERYONE_SETS; 4558 base_type = ZFS_DELEG_EVERYONE; 4559 if (local) 4560 ld[0] = ZFS_DELEG_LOCAL; 4561 if (descend) 4562 ld[1] = ZFS_DELEG_DESCENDENT; 4563 } 4564 4565 if (perms != NULL) { 4566 char *curr = perms; 4567 char *end = curr + strlen(perms); 4568 4569 while (curr < end) { 4570 char *delim = strchr(curr, ','); 4571 if (delim == NULL) 4572 delim = end; 4573 else 4574 *delim = '\0'; 4575 4576 if (curr[0] == '@') 4577 nvl = set_nvl; 4578 else 4579 nvl = base_nvl; 4580 4581 (void) nvlist_add_boolean(nvl, curr); 4582 if (delim != end) 4583 *delim = ','; 4584 curr = delim + 1; 4585 } 4586 4587 for (i = 0; i < 2; i++) { 4588 char locality = ld[i]; 4589 if (locality == 0) 4590 continue; 4591 4592 if (!nvlist_empty(base_nvl)) { 4593 if (who != NULL) 4594 (void) snprintf(who_buf, 4595 sizeof (who_buf), "%c%c$%s", 4596 base_type, locality, who); 4597 else 4598 (void) snprintf(who_buf, 4599 sizeof (who_buf), "%c%c$", 4600 base_type, locality); 4601 4602 (void) nvlist_add_nvlist(top_nvl, who_buf, 4603 base_nvl); 4604 } 4605 4606 4607 if (!nvlist_empty(set_nvl)) { 4608 if (who != NULL) 4609 (void) snprintf(who_buf, 4610 sizeof (who_buf), "%c%c$%s", 4611 set_type, locality, who); 4612 else 4613 (void) snprintf(who_buf, 4614 sizeof (who_buf), "%c%c$", 4615 set_type, locality); 4616 4617 (void) nvlist_add_nvlist(top_nvl, who_buf, 4618 set_nvl); 4619 } 4620 } 4621 } else { 4622 for (i = 0; i < 2; i++) { 4623 char locality = ld[i]; 4624 if (locality == 0) 4625 continue; 4626 4627 if (who != NULL) 4628 (void) snprintf(who_buf, sizeof (who_buf), 4629 "%c%c$%s", base_type, locality, who); 4630 else 4631 (void) snprintf(who_buf, sizeof (who_buf), 4632 "%c%c$", base_type, locality); 4633 (void) nvlist_add_boolean(top_nvl, who_buf); 4634 4635 if (who != NULL) 4636 (void) snprintf(who_buf, sizeof (who_buf), 4637 "%c%c$%s", set_type, locality, who); 4638 else 4639 (void) snprintf(who_buf, sizeof (who_buf), 4640 "%c%c$", set_type, locality); 4641 (void) nvlist_add_boolean(top_nvl, who_buf); 4642 } 4643 } 4644} 4645 4646static int 4647construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4648{ 4649 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4650 nomem(); 4651 4652 if (opts->set) { 4653 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4654 opts->descend, opts->who, opts->perms, *nvlp); 4655 } else if (opts->create) { 4656 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4657 opts->descend, NULL, opts->perms, *nvlp); 4658 } else if (opts->everyone) { 4659 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4660 opts->descend, NULL, opts->perms, *nvlp); 4661 } else { 4662 char *curr = opts->who; 4663 char *end = curr + strlen(curr); 4664 4665 while (curr < end) { 4666 const char *who; 4667 zfs_deleg_who_type_t who_type; 4668 char *endch; 4669 char *delim = strchr(curr, ','); 4670 char errbuf[256]; 4671 char id[64]; 4672 struct passwd *p = NULL; 4673 struct group *g = NULL; 4674 4675 uid_t rid; 4676 if (delim == NULL) 4677 delim = end; 4678 else 4679 *delim = '\0'; 4680 4681 rid = (uid_t)strtol(curr, &endch, 0); 4682 if (opts->user) { 4683 who_type = ZFS_DELEG_USER; 4684 if (*endch != '\0') 4685 p = getpwnam(curr); 4686 else 4687 p = getpwuid(rid); 4688 4689 if (p != NULL) 4690 rid = p->pw_uid; 4691 else { 4692 (void) snprintf(errbuf, 256, gettext( 4693 "invalid user %s"), curr); 4694 allow_usage(un, B_TRUE, errbuf); 4695 } 4696 } else if (opts->group) { 4697 who_type = ZFS_DELEG_GROUP; 4698 if (*endch != '\0') 4699 g = getgrnam(curr); 4700 else 4701 g = getgrgid(rid); 4702 4703 if (g != NULL) 4704 rid = g->gr_gid; 4705 else { 4706 (void) snprintf(errbuf, 256, gettext( 4707 "invalid group %s"), curr); 4708 allow_usage(un, B_TRUE, errbuf); 4709 } 4710 } else { 4711 if (*endch != '\0') { 4712 p = getpwnam(curr); 4713 } else { 4714 p = getpwuid(rid); 4715 } 4716 4717 if (p == NULL) 4718 if (*endch != '\0') { 4719 g = getgrnam(curr); 4720 } else { 4721 g = getgrgid(rid); 4722 } 4723 4724 if (p != NULL) { 4725 who_type = ZFS_DELEG_USER; 4726 rid = p->pw_uid; 4727 } else if (g != NULL) { 4728 who_type = ZFS_DELEG_GROUP; 4729 rid = g->gr_gid; 4730 } else { 4731 (void) snprintf(errbuf, 256, gettext( 4732 "invalid user/group %s"), curr); 4733 allow_usage(un, B_TRUE, errbuf); 4734 } 4735 } 4736 4737 (void) sprintf(id, "%u", rid); 4738 who = id; 4739 4740 store_allow_perm(who_type, opts->local, 4741 opts->descend, who, opts->perms, *nvlp); 4742 curr = delim + 1; 4743 } 4744 } 4745 4746 return (0); 4747} 4748 4749static void 4750print_set_creat_perms(uu_avl_t *who_avl) 4751{ 4752 const char *sc_title[] = { 4753 gettext("Permission sets:\n"), 4754 gettext("Create time permissions:\n"), 4755 NULL 4756 }; 4757 const char **title_ptr = sc_title; 4758 who_perm_node_t *who_node = NULL; 4759 int prev_weight = -1; 4760 4761 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4762 who_node = uu_avl_next(who_avl, who_node)) { 4763 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4764 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4765 const char *who_name = who_node->who_perm.who_name; 4766 int weight = who_type2weight(who_type); 4767 boolean_t first = B_TRUE; 4768 deleg_perm_node_t *deleg_node; 4769 4770 if (prev_weight != weight) { 4771 (void) printf(*title_ptr++); 4772 prev_weight = weight; 4773 } 4774 4775 if (who_name == NULL || strnlen(who_name, 1) == 0) 4776 (void) printf("\t"); 4777 else 4778 (void) printf("\t%s ", who_name); 4779 4780 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4781 deleg_node = uu_avl_next(avl, deleg_node)) { 4782 if (first) { 4783 (void) printf("%s", 4784 deleg_node->dpn_perm.dp_name); 4785 first = B_FALSE; 4786 } else 4787 (void) printf(",%s", 4788 deleg_node->dpn_perm.dp_name); 4789 } 4790 4791 (void) printf("\n"); 4792 } 4793} 4794 4795static void inline 4796print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 4797 const char *title) 4798{ 4799 who_perm_node_t *who_node = NULL; 4800 boolean_t prt_title = B_TRUE; 4801 uu_avl_walk_t *walk; 4802 4803 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 4804 nomem(); 4805 4806 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 4807 const char *who_name = who_node->who_perm.who_name; 4808 const char *nice_who_name = who_node->who_perm.who_ug_name; 4809 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4810 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4811 char delim = ' '; 4812 deleg_perm_node_t *deleg_node; 4813 boolean_t prt_who = B_TRUE; 4814 4815 for (deleg_node = uu_avl_first(avl); 4816 deleg_node != NULL; 4817 deleg_node = uu_avl_next(avl, deleg_node)) { 4818 if (local != deleg_node->dpn_perm.dp_local || 4819 descend != deleg_node->dpn_perm.dp_descend) 4820 continue; 4821 4822 if (prt_who) { 4823 const char *who = NULL; 4824 if (prt_title) { 4825 prt_title = B_FALSE; 4826 (void) printf(title); 4827 } 4828 4829 switch (who_type) { 4830 case ZFS_DELEG_USER_SETS: 4831 case ZFS_DELEG_USER: 4832 who = gettext("user"); 4833 if (nice_who_name) 4834 who_name = nice_who_name; 4835 break; 4836 case ZFS_DELEG_GROUP_SETS: 4837 case ZFS_DELEG_GROUP: 4838 who = gettext("group"); 4839 if (nice_who_name) 4840 who_name = nice_who_name; 4841 break; 4842 case ZFS_DELEG_EVERYONE_SETS: 4843 case ZFS_DELEG_EVERYONE: 4844 who = gettext("everyone"); 4845 who_name = NULL; 4846 } 4847 4848 prt_who = B_FALSE; 4849 if (who_name == NULL) 4850 (void) printf("\t%s", who); 4851 else 4852 (void) printf("\t%s %s", who, who_name); 4853 } 4854 4855 (void) printf("%c%s", delim, 4856 deleg_node->dpn_perm.dp_name); 4857 delim = ','; 4858 } 4859 4860 if (!prt_who) 4861 (void) printf("\n"); 4862 } 4863 4864 uu_avl_walk_end(walk); 4865} 4866 4867static void 4868print_fs_perms(fs_perm_set_t *fspset) 4869{ 4870 fs_perm_node_t *node = NULL; 4871 char buf[ZFS_MAXNAMELEN+32]; 4872 const char *dsname = buf; 4873 4874 for (node = uu_list_first(fspset->fsps_list); node != NULL; 4875 node = uu_list_next(fspset->fsps_list, node)) { 4876 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 4877 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 4878 int left = 0; 4879 4880 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 4881 gettext("---- Permissions on %s "), 4882 node->fspn_fsperm.fsp_name); 4883 (void) printf(dsname); 4884 left = 70 - strlen(buf); 4885 while (left-- > 0) 4886 (void) printf("-"); 4887 (void) printf("\n"); 4888 4889 print_set_creat_perms(sc_avl); 4890 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 4891 gettext("Local permissions:\n")); 4892 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 4893 gettext("Descendent permissions:\n")); 4894 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 4895 gettext("Local+Descendent permissions:\n")); 4896 } 4897} 4898 4899static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 4900 4901struct deleg_perms { 4902 boolean_t un; 4903 nvlist_t *nvl; 4904}; 4905 4906static int 4907set_deleg_perms(zfs_handle_t *zhp, void *data) 4908{ 4909 struct deleg_perms *perms = (struct deleg_perms *)data; 4910 zfs_type_t zfs_type = zfs_get_type(zhp); 4911 4912 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 4913 return (0); 4914 4915 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 4916} 4917 4918static int 4919zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 4920{ 4921 zfs_handle_t *zhp; 4922 nvlist_t *perm_nvl = NULL; 4923 nvlist_t *update_perm_nvl = NULL; 4924 int error = 1; 4925 int c; 4926 struct allow_opts opts = { 0 }; 4927 4928 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 4929 4930 /* check opts */ 4931 while ((c = getopt(argc, argv, optstr)) != -1) { 4932 switch (c) { 4933 case 'l': 4934 opts.local = B_TRUE; 4935 break; 4936 case 'd': 4937 opts.descend = B_TRUE; 4938 break; 4939 case 'u': 4940 opts.user = B_TRUE; 4941 break; 4942 case 'g': 4943 opts.group = B_TRUE; 4944 break; 4945 case 'e': 4946 opts.everyone = B_TRUE; 4947 break; 4948 case 's': 4949 opts.set = B_TRUE; 4950 break; 4951 case 'c': 4952 opts.create = B_TRUE; 4953 break; 4954 case 'r': 4955 opts.recursive = B_TRUE; 4956 break; 4957 case ':': 4958 (void) fprintf(stderr, gettext("missing argument for " 4959 "'%c' option\n"), optopt); 4960 usage(B_FALSE); 4961 break; 4962 case 'h': 4963 opts.prt_usage = B_TRUE; 4964 break; 4965 case '?': 4966 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4967 optopt); 4968 usage(B_FALSE); 4969 } 4970 } 4971 4972 argc -= optind; 4973 argv += optind; 4974 4975 /* check arguments */ 4976 parse_allow_args(argc, argv, un, &opts); 4977 4978 /* try to open the dataset */ 4979 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM)) 4980 == NULL) { 4981 (void) fprintf(stderr, "Failed to open Dataset *%s*\n", 4982 opts.dataset); 4983 return (-1); 4984 } 4985 4986 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 4987 goto cleanup2; 4988 4989 fs_perm_set_init(&fs_perm_set); 4990 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 4991 (void) fprintf(stderr, "Failed to parse fsacl permissionsn"); 4992 goto cleanup1; 4993 } 4994 4995 if (opts.prt_perms) 4996 print_fs_perms(&fs_perm_set); 4997 else { 4998 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 4999 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5000 goto cleanup0; 5001 5002 if (un && opts.recursive) { 5003 struct deleg_perms data = { un, update_perm_nvl }; 5004 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5005 &data) != 0) 5006 goto cleanup0; 5007 } 5008 } 5009 5010 error = 0; 5011 5012cleanup0: 5013 nvlist_free(perm_nvl); 5014 if (update_perm_nvl != NULL) 5015 nvlist_free(update_perm_nvl); 5016cleanup1: 5017 fs_perm_set_fini(&fs_perm_set); 5018cleanup2: 5019 zfs_close(zhp); 5020 5021 return (error); 5022} 5023 5024/* 5025 * zfs allow [-r] [-t] <tag> <snap> ... 5026 * 5027 * -r Recursively hold 5028 * -t Temporary hold (hidden option) 5029 * 5030 * Apply a user-hold with the given tag to the list of snapshots. 5031 */ 5032static int 5033zfs_do_allow(int argc, char **argv) 5034{ 5035 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5036} 5037 5038/* 5039 * zfs unallow [-r] [-t] <tag> <snap> ... 5040 * 5041 * -r Recursively hold 5042 * -t Temporary hold (hidden option) 5043 * 5044 * Apply a user-hold with the given tag to the list of snapshots. 5045 */ 5046static int 5047zfs_do_unallow(int argc, char **argv) 5048{ 5049 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5050} 5051 5052static int 5053zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5054{ 5055 int errors = 0; 5056 int i; 5057 const char *tag; 5058 boolean_t recursive = B_FALSE; 5059 boolean_t temphold = B_FALSE; 5060 const char *opts = holding ? "rt" : "r"; 5061 int c; 5062 5063 /* check options */ 5064 while ((c = getopt(argc, argv, opts)) != -1) { 5065 switch (c) { 5066 case 'r': 5067 recursive = B_TRUE; 5068 break; 5069 case 't': 5070 temphold = B_TRUE; 5071 break; 5072 case '?': 5073 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5074 optopt); 5075 usage(B_FALSE); 5076 } 5077 } 5078 5079 argc -= optind; 5080 argv += optind; 5081 5082 /* check number of arguments */ 5083 if (argc < 2) 5084 usage(B_FALSE); 5085 5086 tag = argv[0]; 5087 --argc; 5088 ++argv; 5089 5090 if (holding && tag[0] == '.') { 5091 /* tags starting with '.' are reserved for libzfs */ 5092 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5093 usage(B_FALSE); 5094 } 5095 5096 for (i = 0; i < argc; ++i) { 5097 zfs_handle_t *zhp; 5098 char parent[ZFS_MAXNAMELEN]; 5099 const char *delim; 5100 char *path = argv[i]; 5101 5102 delim = strchr(path, '@'); 5103 if (delim == NULL) { 5104 (void) fprintf(stderr, 5105 gettext("'%s' is not a snapshot\n"), path); 5106 ++errors; 5107 continue; 5108 } 5109 (void) strncpy(parent, path, delim - path); 5110 parent[delim - path] = '\0'; 5111 5112 zhp = zfs_open(g_zfs, parent, 5113 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5114 if (zhp == NULL) { 5115 ++errors; 5116 continue; 5117 } 5118 if (holding) { 5119 if (zfs_hold(zhp, delim+1, tag, recursive, 5120 temphold, B_FALSE, -1, 0, 0) != 0) 5121 ++errors; 5122 } else { 5123 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5124 ++errors; 5125 } 5126 zfs_close(zhp); 5127 } 5128 5129 return (errors != 0); 5130} 5131 5132/* 5133 * zfs hold [-r] [-t] <tag> <snap> ... 5134 * 5135 * -r Recursively hold 5136 * -t Temporary hold (hidden option) 5137 * 5138 * Apply a user-hold with the given tag to the list of snapshots. 5139 */ 5140static int 5141zfs_do_hold(int argc, char **argv) 5142{ 5143 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5144} 5145 5146/* 5147 * zfs release [-r] <tag> <snap> ... 5148 * 5149 * -r Recursively release 5150 * 5151 * Release a user-hold with the given tag from the list of snapshots. 5152 */ 5153static int 5154zfs_do_release(int argc, char **argv) 5155{ 5156 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5157} 5158 5159typedef struct holds_cbdata { 5160 boolean_t cb_recursive; 5161 const char *cb_snapname; 5162 nvlist_t **cb_nvlp; 5163 size_t cb_max_namelen; 5164 size_t cb_max_taglen; 5165} holds_cbdata_t; 5166 5167#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5168#define DATETIME_BUF_LEN (32) 5169/* 5170 * 5171 */ 5172static void 5173print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5174{ 5175 int i; 5176 nvpair_t *nvp = NULL; 5177 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5178 const char *col; 5179 5180 if (!scripted) { 5181 for (i = 0; i < 3; i++) { 5182 col = gettext(hdr_cols[i]); 5183 if (i < 2) 5184 (void) printf("%-*s ", i ? tagwidth : nwidth, 5185 col); 5186 else 5187 (void) printf("%s\n", col); 5188 } 5189 } 5190 5191 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5192 char *zname = nvpair_name(nvp); 5193 nvlist_t *nvl2; 5194 nvpair_t *nvp2 = NULL; 5195 (void) nvpair_value_nvlist(nvp, &nvl2); 5196 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5197 char tsbuf[DATETIME_BUF_LEN]; 5198 char *tagname = nvpair_name(nvp2); 5199 uint64_t val = 0; 5200 time_t time; 5201 struct tm t; 5202 char sep = scripted ? '\t' : ' '; 5203 size_t sepnum = scripted ? 1 : 2; 5204 5205 (void) nvpair_value_uint64(nvp2, &val); 5206 time = (time_t)val; 5207 (void) localtime_r(&time, &t); 5208 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5209 gettext(STRFTIME_FMT_STR), &t); 5210 5211 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5212 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5213 } 5214 } 5215} 5216 5217/* 5218 * Generic callback function to list a dataset or snapshot. 5219 */ 5220static int 5221holds_callback(zfs_handle_t *zhp, void *data) 5222{ 5223 holds_cbdata_t *cbp = data; 5224 nvlist_t *top_nvl = *cbp->cb_nvlp; 5225 nvlist_t *nvl = NULL; 5226 nvpair_t *nvp = NULL; 5227 const char *zname = zfs_get_name(zhp); 5228 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5229 5230 if (cbp->cb_recursive) { 5231 const char *snapname; 5232 char *delim = strchr(zname, '@'); 5233 if (delim == NULL) 5234 return (0); 5235 5236 snapname = delim + 1; 5237 if (strcmp(cbp->cb_snapname, snapname)) 5238 return (0); 5239 } 5240 5241 if (zfs_get_holds(zhp, &nvl) != 0) 5242 return (-1); 5243 5244 if (znamelen > cbp->cb_max_namelen) 5245 cbp->cb_max_namelen = znamelen; 5246 5247 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5248 const char *tag = nvpair_name(nvp); 5249 size_t taglen = strnlen(tag, MAXNAMELEN); 5250 if (taglen > cbp->cb_max_taglen) 5251 cbp->cb_max_taglen = taglen; 5252 } 5253 5254 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5255} 5256 5257/* 5258 * zfs holds [-r] <snap> ... 5259 * 5260 * -r Recursively hold 5261 */ 5262static int 5263zfs_do_holds(int argc, char **argv) 5264{ 5265 int errors = 0; 5266 int c; 5267 int i; 5268 boolean_t scripted = B_FALSE; 5269 boolean_t recursive = B_FALSE; 5270 const char *opts = "rH"; 5271 nvlist_t *nvl; 5272 5273 int types = ZFS_TYPE_SNAPSHOT; 5274 holds_cbdata_t cb = { 0 }; 5275 5276 int limit = 0; 5277 int ret; 5278 int flags = 0; 5279 5280 /* check options */ 5281 while ((c = getopt(argc, argv, opts)) != -1) { 5282 switch (c) { 5283 case 'r': 5284 recursive = B_TRUE; 5285 break; 5286 case 'H': 5287 scripted = B_TRUE; 5288 break; 5289 case '?': 5290 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5291 optopt); 5292 usage(B_FALSE); 5293 } 5294 } 5295 5296 if (recursive) { 5297 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5298 flags |= ZFS_ITER_RECURSE; 5299 } 5300 5301 argc -= optind; 5302 argv += optind; 5303 5304 /* check number of arguments */ 5305 if (argc < 1) 5306 usage(B_FALSE); 5307 5308 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5309 nomem(); 5310 5311 for (i = 0; i < argc; ++i) { 5312 char *snapshot = argv[i]; 5313 const char *delim; 5314 const char *snapname; 5315 5316 delim = strchr(snapshot, '@'); 5317 if (delim == NULL) { 5318 (void) fprintf(stderr, 5319 gettext("'%s' is not a snapshot\n"), snapshot); 5320 ++errors; 5321 continue; 5322 } 5323 snapname = delim + 1; 5324 if (recursive) 5325 snapshot[delim - snapshot] = '\0'; 5326 5327 cb.cb_recursive = recursive; 5328 cb.cb_snapname = snapname; 5329 cb.cb_nvlp = &nvl; 5330 5331 /* 5332 * 1. collect holds data, set format options 5333 */ 5334 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5335 holds_callback, &cb); 5336 if (ret != 0) 5337 ++errors; 5338 } 5339 5340 /* 5341 * 2. print holds data 5342 */ 5343 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5344 5345 if (nvlist_empty(nvl)) 5346 (void) printf(gettext("no datasets available\n")); 5347 5348 nvlist_free(nvl); 5349 5350 return (0 != errors); 5351} 5352 5353#define CHECK_SPINNER 30 5354#define SPINNER_TIME 3 /* seconds */ 5355#define MOUNT_TIME 5 /* seconds */ 5356 5357static int 5358get_one_dataset(zfs_handle_t *zhp, void *data) 5359{ 5360 static char *spin[] = { "-", "\\", "|", "/" }; 5361 static int spinval = 0; 5362 static int spincheck = 0; 5363 static time_t last_spin_time = (time_t)0; 5364 get_all_cb_t *cbp = data; 5365 zfs_type_t type = zfs_get_type(zhp); 5366 5367 if (cbp->cb_verbose) { 5368 if (--spincheck < 0) { 5369 time_t now = time(NULL); 5370 if (last_spin_time + SPINNER_TIME < now) { 5371 update_progress(spin[spinval++ % 4]); 5372 last_spin_time = now; 5373 } 5374 spincheck = CHECK_SPINNER; 5375 } 5376 } 5377 5378 /* 5379 * Interate over any nested datasets. 5380 */ 5381 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5382 zfs_close(zhp); 5383 return (1); 5384 } 5385 5386 /* 5387 * Skip any datasets whose type does not match. 5388 */ 5389 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5390 zfs_close(zhp); 5391 return (0); 5392 } 5393 libzfs_add_handle(cbp, zhp); 5394 assert(cbp->cb_used <= cbp->cb_alloc); 5395 5396 return (0); 5397} 5398 5399static void 5400get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5401{ 5402 get_all_cb_t cb = { 0 }; 5403 cb.cb_verbose = verbose; 5404 cb.cb_getone = get_one_dataset; 5405 5406 if (verbose) 5407 set_progress_header(gettext("Reading ZFS config")); 5408 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5409 5410 *dslist = cb.cb_handles; 5411 *count = cb.cb_used; 5412 5413 if (verbose) 5414 finish_progress(gettext("done.")); 5415} 5416 5417/* 5418 * Generic callback for sharing or mounting filesystems. Because the code is so 5419 * similar, we have a common function with an extra parameter to determine which 5420 * mode we are using. 5421 */ 5422#define OP_SHARE 0x1 5423#define OP_MOUNT 0x2 5424 5425/* 5426 * Share or mount a dataset. 5427 */ 5428static int 5429share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5430 boolean_t explicit, const char *options) 5431{ 5432 char mountpoint[ZFS_MAXPROPLEN]; 5433 char shareopts[ZFS_MAXPROPLEN]; 5434 char smbshareopts[ZFS_MAXPROPLEN]; 5435 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5436 struct mnttab mnt; 5437 uint64_t zoned, canmount; 5438 boolean_t shared_nfs, shared_smb; 5439 5440 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5441 5442 /* 5443 * Check to make sure we can mount/share this dataset. If we 5444 * are in the global zone and the filesystem is exported to a 5445 * local zone, or if we are in a local zone and the 5446 * filesystem is not exported, then it is an error. 5447 */ 5448 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5449 5450 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5451 if (!explicit) 5452 return (0); 5453 5454 (void) fprintf(stderr, gettext("cannot %s '%s': " 5455 "dataset is exported to a local zone\n"), cmdname, 5456 zfs_get_name(zhp)); 5457 return (1); 5458 5459 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5460 if (!explicit) 5461 return (0); 5462 5463 (void) fprintf(stderr, gettext("cannot %s '%s': " 5464 "permission denied\n"), cmdname, 5465 zfs_get_name(zhp)); 5466 return (1); 5467 } 5468 5469 /* 5470 * Ignore any filesystems which don't apply to us. This 5471 * includes those with a legacy mountpoint, or those with 5472 * legacy share options. 5473 */ 5474 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5475 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5476 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5477 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5478 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5479 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5480 5481 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5482 strcmp(smbshareopts, "off") == 0) { 5483 if (!explicit) 5484 return (0); 5485 5486 (void) fprintf(stderr, gettext("cannot share '%s': " 5487 "legacy share\n"), zfs_get_name(zhp)); 5488 (void) fprintf(stderr, gettext("use share(1M) to " 5489 "share this filesystem, or set " 5490 "sharenfs property on\n")); 5491 return (1); 5492 } 5493 5494 /* 5495 * We cannot share or mount legacy filesystems. If the 5496 * shareopts is non-legacy but the mountpoint is legacy, we 5497 * treat it as a legacy share. 5498 */ 5499 if (strcmp(mountpoint, "legacy") == 0) { 5500 if (!explicit) 5501 return (0); 5502 5503 (void) fprintf(stderr, gettext("cannot %s '%s': " 5504 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5505 (void) fprintf(stderr, gettext("use %s(1M) to " 5506 "%s this filesystem\n"), cmdname, cmdname); 5507 return (1); 5508 } 5509 5510 if (strcmp(mountpoint, "none") == 0) { 5511 if (!explicit) 5512 return (0); 5513 5514 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5515 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5516 return (1); 5517 } 5518 5519 /* 5520 * canmount explicit outcome 5521 * on no pass through 5522 * on yes pass through 5523 * off no return 0 5524 * off yes display error, return 1 5525 * noauto no return 0 5526 * noauto yes pass through 5527 */ 5528 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5529 if (canmount == ZFS_CANMOUNT_OFF) { 5530 if (!explicit) 5531 return (0); 5532 5533 (void) fprintf(stderr, gettext("cannot %s '%s': " 5534 "'canmount' property is set to 'off'\n"), cmdname, 5535 zfs_get_name(zhp)); 5536 return (1); 5537 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5538 return (0); 5539 } 5540 5541 /* 5542 * At this point, we have verified that the mountpoint and/or 5543 * shareopts are appropriate for auto management. If the 5544 * filesystem is already mounted or shared, return (failing 5545 * for explicit requests); otherwise mount or share the 5546 * filesystem. 5547 */ 5548 switch (op) { 5549 case OP_SHARE: 5550 5551 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5552 shared_smb = zfs_is_shared_smb(zhp, NULL); 5553 5554 if (shared_nfs && shared_smb || 5555 (shared_nfs && strcmp(shareopts, "on") == 0 && 5556 strcmp(smbshareopts, "off") == 0) || 5557 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5558 strcmp(shareopts, "off") == 0)) { 5559 if (!explicit) 5560 return (0); 5561 5562 (void) fprintf(stderr, gettext("cannot share " 5563 "'%s': filesystem already shared\n"), 5564 zfs_get_name(zhp)); 5565 return (1); 5566 } 5567 5568 if (!zfs_is_mounted(zhp, NULL) && 5569 zfs_mount(zhp, NULL, 0) != 0) 5570 return (1); 5571 5572 if (protocol == NULL) { 5573 if (zfs_shareall(zhp) != 0) 5574 return (1); 5575 } else if (strcmp(protocol, "nfs") == 0) { 5576 if (zfs_share_nfs(zhp)) 5577 return (1); 5578 } else if (strcmp(protocol, "smb") == 0) { 5579 if (zfs_share_smb(zhp)) 5580 return (1); 5581 } else { 5582 (void) fprintf(stderr, gettext("cannot share " 5583 "'%s': invalid share type '%s' " 5584 "specified\n"), 5585 zfs_get_name(zhp), protocol); 5586 return (1); 5587 } 5588 5589 break; 5590 5591 case OP_MOUNT: 5592 if (options == NULL) 5593 mnt.mnt_mntopts = ""; 5594 else 5595 mnt.mnt_mntopts = (char *)options; 5596 5597 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5598 zfs_is_mounted(zhp, NULL)) { 5599 if (!explicit) 5600 return (0); 5601 5602 (void) fprintf(stderr, gettext("cannot mount " 5603 "'%s': filesystem already mounted\n"), 5604 zfs_get_name(zhp)); 5605 return (1); 5606 } 5607 5608 if (zfs_mount(zhp, options, flags) != 0) 5609 return (1); 5610 break; 5611 } 5612 5613 return (0); 5614} 5615 5616/* 5617 * Reports progress in the form "(current/total)". Not thread-safe. 5618 */ 5619static void 5620report_mount_progress(int current, int total) 5621{ 5622 static time_t last_progress_time = 0; 5623 time_t now = time(NULL); 5624 char info[32]; 5625 5626 /* report 1..n instead of 0..n-1 */ 5627 ++current; 5628 5629 /* display header if we're here for the first time */ 5630 if (current == 1) { 5631 set_progress_header(gettext("Mounting ZFS filesystems")); 5632 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5633 /* too soon to report again */ 5634 return; 5635 } 5636 5637 last_progress_time = now; 5638 5639 (void) sprintf(info, "(%d/%d)", current, total); 5640 5641 if (current == total) 5642 finish_progress(info); 5643 else 5644 update_progress(info); 5645} 5646 5647static void 5648append_options(char *mntopts, char *newopts) 5649{ 5650 int len = strlen(mntopts); 5651 5652 /* original length plus new string to append plus 1 for the comma */ 5653 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5654 (void) fprintf(stderr, gettext("the opts argument for " 5655 "'%c' option is too long (more than %d chars)\n"), 5656 "-o", MNT_LINE_MAX); 5657 usage(B_FALSE); 5658 } 5659 5660 if (*mntopts) 5661 mntopts[len++] = ','; 5662 5663 (void) strcpy(&mntopts[len], newopts); 5664} 5665 5666static int 5667share_mount(int op, int argc, char **argv) 5668{ 5669 int do_all = 0; 5670 boolean_t verbose = B_FALSE; 5671 int c, ret = 0; 5672 char *options = NULL; 5673 int flags = 0; 5674 5675 /* check options */ 5676 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5677 != -1) { 5678 switch (c) { 5679 case 'a': 5680 do_all = 1; 5681 break; 5682 case 'v': 5683 verbose = B_TRUE; 5684 break; 5685 case 'o': 5686 if (*optarg == '\0') { 5687 (void) fprintf(stderr, gettext("empty mount " 5688 "options (-o) specified\n")); 5689 usage(B_FALSE); 5690 } 5691 5692 if (options == NULL) 5693 options = safe_malloc(MNT_LINE_MAX + 1); 5694 5695 /* option validation is done later */ 5696 append_options(options, optarg); 5697 break; 5698 5699 case 'O': 5700 warnx("no overlay mounts support on FreeBSD, ignoring"); 5701 break; 5702 case ':': 5703 (void) fprintf(stderr, gettext("missing argument for " 5704 "'%c' option\n"), optopt); 5705 usage(B_FALSE); 5706 break; 5707 case '?': 5708 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5709 optopt); 5710 usage(B_FALSE); 5711 } 5712 } 5713 5714 argc -= optind; 5715 argv += optind; 5716 5717 /* check number of arguments */ 5718 if (do_all) { 5719 zfs_handle_t **dslist = NULL; 5720 size_t i, count = 0; 5721 char *protocol = NULL; 5722 5723 if (op == OP_SHARE && argc > 0) { 5724 if (strcmp(argv[0], "nfs") != 0 && 5725 strcmp(argv[0], "smb") != 0) { 5726 (void) fprintf(stderr, gettext("share type " 5727 "must be 'nfs' or 'smb'\n")); 5728 usage(B_FALSE); 5729 } 5730 protocol = argv[0]; 5731 argc--; 5732 argv++; 5733 } 5734 5735 if (argc != 0) { 5736 (void) fprintf(stderr, gettext("too many arguments\n")); 5737 usage(B_FALSE); 5738 } 5739 5740 start_progress_timer(); 5741 get_all_datasets(&dslist, &count, verbose); 5742 5743 if (count == 0) 5744 return (0); 5745 5746 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5747 5748 for (i = 0; i < count; i++) { 5749 if (verbose) 5750 report_mount_progress(i, count); 5751 5752 if (share_mount_one(dslist[i], op, flags, protocol, 5753 B_FALSE, options) != 0) 5754 ret = 1; 5755 zfs_close(dslist[i]); 5756 } 5757 5758 free(dslist); 5759 } else if (argc == 0) { 5760 struct mnttab entry; 5761 5762 if ((op == OP_SHARE) || (options != NULL)) { 5763 (void) fprintf(stderr, gettext("missing filesystem " 5764 "argument (specify -a for all)\n")); 5765 usage(B_FALSE); 5766 } 5767 5768 /* 5769 * When mount is given no arguments, go through /etc/mnttab and 5770 * display any active ZFS mounts. We hide any snapshots, since 5771 * they are controlled automatically. 5772 */ 5773 rewind(mnttab_file); 5774 while (getmntent(mnttab_file, &entry) == 0) { 5775 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5776 strchr(entry.mnt_special, '@') != NULL) 5777 continue; 5778 5779 (void) printf("%-30s %s\n", entry.mnt_special, 5780 entry.mnt_mountp); 5781 } 5782 5783 } else { 5784 zfs_handle_t *zhp; 5785 5786 if (argc > 1) { 5787 (void) fprintf(stderr, 5788 gettext("too many arguments\n")); 5789 usage(B_FALSE); 5790 } 5791 5792 if ((zhp = zfs_open(g_zfs, argv[0], 5793 ZFS_TYPE_FILESYSTEM)) == NULL) { 5794 ret = 1; 5795 } else { 5796 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5797 options); 5798 zfs_close(zhp); 5799 } 5800 } 5801 5802 return (ret); 5803} 5804 5805/* 5806 * zfs mount -a [nfs] 5807 * zfs mount filesystem 5808 * 5809 * Mount all filesystems, or mount the given filesystem. 5810 */ 5811static int 5812zfs_do_mount(int argc, char **argv) 5813{ 5814 return (share_mount(OP_MOUNT, argc, argv)); 5815} 5816 5817/* 5818 * zfs share -a [nfs | smb] 5819 * zfs share filesystem 5820 * 5821 * Share all filesystems, or share the given filesystem. 5822 */ 5823static int 5824zfs_do_share(int argc, char **argv) 5825{ 5826 return (share_mount(OP_SHARE, argc, argv)); 5827} 5828 5829typedef struct unshare_unmount_node { 5830 zfs_handle_t *un_zhp; 5831 char *un_mountp; 5832 uu_avl_node_t un_avlnode; 5833} unshare_unmount_node_t; 5834 5835/* ARGSUSED */ 5836static int 5837unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 5838{ 5839 const unshare_unmount_node_t *l = larg; 5840 const unshare_unmount_node_t *r = rarg; 5841 5842 return (strcmp(l->un_mountp, r->un_mountp)); 5843} 5844 5845/* 5846 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 5847 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 5848 * and unmount it appropriately. 5849 */ 5850static int 5851unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 5852{ 5853 zfs_handle_t *zhp; 5854 int ret; 5855 struct stat64 statbuf; 5856 struct extmnttab entry; 5857 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 5858 ino_t path_inode; 5859 5860 /* 5861 * Search for the path in /etc/mnttab. Rather than looking for the 5862 * specific path, which can be fooled by non-standard paths (i.e. ".." 5863 * or "//"), we stat() the path and search for the corresponding 5864 * (major,minor) device pair. 5865 */ 5866 if (stat64(path, &statbuf) != 0) { 5867 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5868 cmdname, path, strerror(errno)); 5869 return (1); 5870 } 5871 path_inode = statbuf.st_ino; 5872 5873 /* 5874 * Search for the given (major,minor) pair in the mount table. 5875 */ 5876#ifdef sun 5877 rewind(mnttab_file); 5878 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 5879 if (entry.mnt_major == major(statbuf.st_dev) && 5880 entry.mnt_minor == minor(statbuf.st_dev)) 5881 break; 5882 } 5883#else 5884 { 5885 struct statfs sfs; 5886 5887 if (statfs(path, &sfs) != 0) { 5888 (void) fprintf(stderr, "%s: %s\n", path, 5889 strerror(errno)); 5890 ret = -1; 5891 } 5892 statfs2mnttab(&sfs, &entry); 5893 } 5894#endif 5895 if (ret != 0) { 5896 if (op == OP_SHARE) { 5897 (void) fprintf(stderr, gettext("cannot %s '%s': not " 5898 "currently mounted\n"), cmdname, path); 5899 return (1); 5900 } 5901 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 5902 path); 5903 if ((ret = umount2(path, flags)) != 0) 5904 (void) fprintf(stderr, gettext("%s: %s\n"), path, 5905 strerror(errno)); 5906 return (ret != 0); 5907 } 5908 5909 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 5910 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 5911 "filesystem\n"), cmdname, path); 5912 return (1); 5913 } 5914 5915 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 5916 ZFS_TYPE_FILESYSTEM)) == NULL) 5917 return (1); 5918 5919 ret = 1; 5920 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 5921 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5922 cmdname, path, strerror(errno)); 5923 goto out; 5924 } else if (statbuf.st_ino != path_inode) { 5925 (void) fprintf(stderr, gettext("cannot " 5926 "%s '%s': not a mountpoint\n"), cmdname, path); 5927 goto out; 5928 } 5929 5930 if (op == OP_SHARE) { 5931 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 5932 char smbshare_prop[ZFS_MAXPROPLEN]; 5933 5934 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 5935 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 5936 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 5937 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 5938 5939 if (strcmp(nfs_mnt_prop, "off") == 0 && 5940 strcmp(smbshare_prop, "off") == 0) { 5941 (void) fprintf(stderr, gettext("cannot unshare " 5942 "'%s': legacy share\n"), path); 5943 (void) fprintf(stderr, gettext("use " 5944 "unshare(1M) to unshare this filesystem\n")); 5945 } else if (!zfs_is_shared(zhp)) { 5946 (void) fprintf(stderr, gettext("cannot unshare '%s': " 5947 "not currently shared\n"), path); 5948 } else { 5949 ret = zfs_unshareall_bypath(zhp, path); 5950 } 5951 } else { 5952 char mtpt_prop[ZFS_MAXPROPLEN]; 5953 5954 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 5955 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 5956 5957 if (is_manual) { 5958 ret = zfs_unmount(zhp, NULL, flags); 5959 } else if (strcmp(mtpt_prop, "legacy") == 0) { 5960 (void) fprintf(stderr, gettext("cannot unmount " 5961 "'%s': legacy mountpoint\n"), 5962 zfs_get_name(zhp)); 5963 (void) fprintf(stderr, gettext("use umount(1M) " 5964 "to unmount this filesystem\n")); 5965 } else { 5966 ret = zfs_unmountall(zhp, flags); 5967 } 5968 } 5969 5970out: 5971 zfs_close(zhp); 5972 5973 return (ret != 0); 5974} 5975 5976/* 5977 * Generic callback for unsharing or unmounting a filesystem. 5978 */ 5979static int 5980unshare_unmount(int op, int argc, char **argv) 5981{ 5982 int do_all = 0; 5983 int flags = 0; 5984 int ret = 0; 5985 int c; 5986 zfs_handle_t *zhp; 5987 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 5988 char sharesmb[ZFS_MAXPROPLEN]; 5989 5990 /* check options */ 5991 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 5992 switch (c) { 5993 case 'a': 5994 do_all = 1; 5995 break; 5996 case 'f': 5997 flags = MS_FORCE; 5998 break; 5999 case '?': 6000 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6001 optopt); 6002 usage(B_FALSE); 6003 } 6004 } 6005 6006 argc -= optind; 6007 argv += optind; 6008 6009 if (do_all) { 6010 /* 6011 * We could make use of zfs_for_each() to walk all datasets in 6012 * the system, but this would be very inefficient, especially 6013 * since we would have to linearly search /etc/mnttab for each 6014 * one. Instead, do one pass through /etc/mnttab looking for 6015 * zfs entries and call zfs_unmount() for each one. 6016 * 6017 * Things get a little tricky if the administrator has created 6018 * mountpoints beneath other ZFS filesystems. In this case, we 6019 * have to unmount the deepest filesystems first. To accomplish 6020 * this, we place all the mountpoints in an AVL tree sorted by 6021 * the special type (dataset name), and walk the result in 6022 * reverse to make sure to get any snapshots first. 6023 */ 6024 struct mnttab entry; 6025 uu_avl_pool_t *pool; 6026 uu_avl_t *tree; 6027 unshare_unmount_node_t *node; 6028 uu_avl_index_t idx; 6029 uu_avl_walk_t *walk; 6030 6031 if (argc != 0) { 6032 (void) fprintf(stderr, gettext("too many arguments\n")); 6033 usage(B_FALSE); 6034 } 6035 6036 if (((pool = uu_avl_pool_create("unmount_pool", 6037 sizeof (unshare_unmount_node_t), 6038 offsetof(unshare_unmount_node_t, un_avlnode), 6039 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6040 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6041 nomem(); 6042 6043 rewind(mnttab_file); 6044 while (getmntent(mnttab_file, &entry) == 0) { 6045 6046 /* ignore non-ZFS entries */ 6047 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6048 continue; 6049 6050 /* ignore snapshots */ 6051 if (strchr(entry.mnt_special, '@') != NULL) 6052 continue; 6053 6054 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6055 ZFS_TYPE_FILESYSTEM)) == NULL) { 6056 ret = 1; 6057 continue; 6058 } 6059 6060 switch (op) { 6061 case OP_SHARE: 6062 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6063 nfs_mnt_prop, 6064 sizeof (nfs_mnt_prop), 6065 NULL, NULL, 0, B_FALSE) == 0); 6066 if (strcmp(nfs_mnt_prop, "off") != 0) 6067 break; 6068 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6069 nfs_mnt_prop, 6070 sizeof (nfs_mnt_prop), 6071 NULL, NULL, 0, B_FALSE) == 0); 6072 if (strcmp(nfs_mnt_prop, "off") == 0) 6073 continue; 6074 break; 6075 case OP_MOUNT: 6076 /* Ignore legacy mounts */ 6077 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6078 nfs_mnt_prop, 6079 sizeof (nfs_mnt_prop), 6080 NULL, NULL, 0, B_FALSE) == 0); 6081 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6082 continue; 6083 /* Ignore canmount=noauto mounts */ 6084 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6085 ZFS_CANMOUNT_NOAUTO) 6086 continue; 6087 default: 6088 break; 6089 } 6090 6091 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6092 node->un_zhp = zhp; 6093 node->un_mountp = safe_strdup(entry.mnt_mountp); 6094 6095 uu_avl_node_init(node, &node->un_avlnode, pool); 6096 6097 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6098 uu_avl_insert(tree, node, idx); 6099 } else { 6100 zfs_close(node->un_zhp); 6101 free(node->un_mountp); 6102 free(node); 6103 } 6104 } 6105 6106 /* 6107 * Walk the AVL tree in reverse, unmounting each filesystem and 6108 * removing it from the AVL tree in the process. 6109 */ 6110 if ((walk = uu_avl_walk_start(tree, 6111 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6112 nomem(); 6113 6114 while ((node = uu_avl_walk_next(walk)) != NULL) { 6115 uu_avl_remove(tree, node); 6116 6117 switch (op) { 6118 case OP_SHARE: 6119 if (zfs_unshareall_bypath(node->un_zhp, 6120 node->un_mountp) != 0) 6121 ret = 1; 6122 break; 6123 6124 case OP_MOUNT: 6125 if (zfs_unmount(node->un_zhp, 6126 node->un_mountp, flags) != 0) 6127 ret = 1; 6128 break; 6129 } 6130 6131 zfs_close(node->un_zhp); 6132 free(node->un_mountp); 6133 free(node); 6134 } 6135 6136 uu_avl_walk_end(walk); 6137 uu_avl_destroy(tree); 6138 uu_avl_pool_destroy(pool); 6139 6140 } else { 6141 if (argc != 1) { 6142 if (argc == 0) 6143 (void) fprintf(stderr, 6144 gettext("missing filesystem argument\n")); 6145 else 6146 (void) fprintf(stderr, 6147 gettext("too many arguments\n")); 6148 usage(B_FALSE); 6149 } 6150 6151 /* 6152 * We have an argument, but it may be a full path or a ZFS 6153 * filesystem. Pass full paths off to unmount_path() (shared by 6154 * manual_unmount), otherwise open the filesystem and pass to 6155 * zfs_unmount(). 6156 */ 6157 if (argv[0][0] == '/') 6158 return (unshare_unmount_path(op, argv[0], 6159 flags, B_FALSE)); 6160 6161 if ((zhp = zfs_open(g_zfs, argv[0], 6162 ZFS_TYPE_FILESYSTEM)) == NULL) 6163 return (1); 6164 6165 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6166 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6167 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6168 NULL, 0, B_FALSE) == 0); 6169 6170 switch (op) { 6171 case OP_SHARE: 6172 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6173 nfs_mnt_prop, 6174 sizeof (nfs_mnt_prop), 6175 NULL, NULL, 0, B_FALSE) == 0); 6176 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6177 sharesmb, sizeof (sharesmb), NULL, NULL, 6178 0, B_FALSE) == 0); 6179 6180 if (strcmp(nfs_mnt_prop, "off") == 0 && 6181 strcmp(sharesmb, "off") == 0) { 6182 (void) fprintf(stderr, gettext("cannot " 6183 "unshare '%s': legacy share\n"), 6184 zfs_get_name(zhp)); 6185 (void) fprintf(stderr, gettext("use " 6186 "unshare(1M) to unshare this " 6187 "filesystem\n")); 6188 ret = 1; 6189 } else if (!zfs_is_shared(zhp)) { 6190 (void) fprintf(stderr, gettext("cannot " 6191 "unshare '%s': not currently " 6192 "shared\n"), zfs_get_name(zhp)); 6193 ret = 1; 6194 } else if (zfs_unshareall(zhp) != 0) { 6195 ret = 1; 6196 } 6197 break; 6198 6199 case OP_MOUNT: 6200 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6201 (void) fprintf(stderr, gettext("cannot " 6202 "unmount '%s': legacy " 6203 "mountpoint\n"), zfs_get_name(zhp)); 6204 (void) fprintf(stderr, gettext("use " 6205 "umount(1M) to unmount this " 6206 "filesystem\n")); 6207 ret = 1; 6208 } else if (!zfs_is_mounted(zhp, NULL)) { 6209 (void) fprintf(stderr, gettext("cannot " 6210 "unmount '%s': not currently " 6211 "mounted\n"), 6212 zfs_get_name(zhp)); 6213 ret = 1; 6214 } else if (zfs_unmountall(zhp, flags) != 0) { 6215 ret = 1; 6216 } 6217 break; 6218 } 6219 6220 zfs_close(zhp); 6221 } 6222 6223 return (ret); 6224} 6225 6226/* 6227 * zfs unmount -a 6228 * zfs unmount filesystem 6229 * 6230 * Unmount all filesystems, or a specific ZFS filesystem. 6231 */ 6232static int 6233zfs_do_unmount(int argc, char **argv) 6234{ 6235 return (unshare_unmount(OP_MOUNT, argc, argv)); 6236} 6237 6238/* 6239 * zfs unshare -a 6240 * zfs unshare filesystem 6241 * 6242 * Unshare all filesystems, or a specific ZFS filesystem. 6243 */ 6244static int 6245zfs_do_unshare(int argc, char **argv) 6246{ 6247 return (unshare_unmount(OP_SHARE, argc, argv)); 6248} 6249 6250/* 6251 * Attach/detach the given dataset to/from the given jail 6252 */ 6253/* ARGSUSED */ 6254static int 6255do_jail(int argc, char **argv, int attach) 6256{ 6257 zfs_handle_t *zhp; 6258 int jailid, ret; 6259 6260 /* check number of arguments */ 6261 if (argc < 3) { 6262 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6263 usage(B_FALSE); 6264 } 6265 if (argc > 3) { 6266 (void) fprintf(stderr, gettext("too many arguments\n")); 6267 usage(B_FALSE); 6268 } 6269 6270 jailid = atoi(argv[1]); 6271 if (jailid == 0) { 6272 (void) fprintf(stderr, gettext("invalid jailid\n")); 6273 usage(B_FALSE); 6274 } 6275 6276 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6277 if (zhp == NULL) 6278 return (1); 6279 6280 ret = (zfs_jail(zhp, jailid, attach) != 0); 6281 6282 zfs_close(zhp); 6283 return (ret); 6284} 6285 6286/* 6287 * zfs jail jailid filesystem 6288 * 6289 * Attach the given dataset to the given jail 6290 */ 6291/* ARGSUSED */ 6292static int 6293zfs_do_jail(int argc, char **argv) 6294{ 6295 6296 return (do_jail(argc, argv, 1)); 6297} 6298 6299/* 6300 * zfs unjail jailid filesystem 6301 * 6302 * Detach the given dataset from the given jail 6303 */ 6304/* ARGSUSED */ 6305static int 6306zfs_do_unjail(int argc, char **argv) 6307{ 6308 6309 return (do_jail(argc, argv, 0)); 6310} 6311 6312/* 6313 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6314 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6315 */ 6316static int 6317manual_mount(int argc, char **argv) 6318{ 6319 zfs_handle_t *zhp; 6320 char mountpoint[ZFS_MAXPROPLEN]; 6321 char mntopts[MNT_LINE_MAX] = { '\0' }; 6322 int ret; 6323 int c; 6324 int flags = 0; 6325 char *dataset, *path; 6326 6327 /* check options */ 6328 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6329 switch (c) { 6330 case 'o': 6331 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6332 break; 6333 case 'O': 6334 flags |= MS_OVERLAY; 6335 break; 6336 case 'm': 6337 flags |= MS_NOMNTTAB; 6338 break; 6339 case ':': 6340 (void) fprintf(stderr, gettext("missing argument for " 6341 "'%c' option\n"), optopt); 6342 usage(B_FALSE); 6343 break; 6344 case '?': 6345 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6346 optopt); 6347 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6348 "<path>\n")); 6349 return (2); 6350 } 6351 } 6352 6353 argc -= optind; 6354 argv += optind; 6355 6356 /* check that we only have two arguments */ 6357 if (argc != 2) { 6358 if (argc == 0) 6359 (void) fprintf(stderr, gettext("missing dataset " 6360 "argument\n")); 6361 else if (argc == 1) 6362 (void) fprintf(stderr, 6363 gettext("missing mountpoint argument\n")); 6364 else 6365 (void) fprintf(stderr, gettext("too many arguments\n")); 6366 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6367 return (2); 6368 } 6369 6370 dataset = argv[0]; 6371 path = argv[1]; 6372 6373 /* try to open the dataset */ 6374 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6375 return (1); 6376 6377 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6378 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6379 6380 /* check for legacy mountpoint and complain appropriately */ 6381 ret = 0; 6382 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6383 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6384 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6385 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6386 strerror(errno)); 6387 ret = 1; 6388 } 6389 } else { 6390 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6391 "mounted using 'mount -F zfs'\n"), dataset); 6392 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6393 "instead.\n"), path); 6394 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6395 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6396 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6397 "information.\n")); 6398 ret = 1; 6399 } 6400 6401 return (ret); 6402} 6403 6404/* 6405 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6406 * unmounts of non-legacy filesystems, as this is the dominant administrative 6407 * interface. 6408 */ 6409static int 6410manual_unmount(int argc, char **argv) 6411{ 6412 int flags = 0; 6413 int c; 6414 6415 /* check options */ 6416 while ((c = getopt(argc, argv, "f")) != -1) { 6417 switch (c) { 6418 case 'f': 6419 flags = MS_FORCE; 6420 break; 6421 case '?': 6422 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6423 optopt); 6424 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6425 "<path>\n")); 6426 return (2); 6427 } 6428 } 6429 6430 argc -= optind; 6431 argv += optind; 6432 6433 /* check arguments */ 6434 if (argc != 1) { 6435 if (argc == 0) 6436 (void) fprintf(stderr, gettext("missing path " 6437 "argument\n")); 6438 else 6439 (void) fprintf(stderr, gettext("too many arguments\n")); 6440 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6441 return (2); 6442 } 6443 6444 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6445} 6446 6447static int 6448find_command_idx(char *command, int *idx) 6449{ 6450 int i; 6451 6452 for (i = 0; i < NCOMMAND; i++) { 6453 if (command_table[i].name == NULL) 6454 continue; 6455 6456 if (strcmp(command, command_table[i].name) == 0) { 6457 *idx = i; 6458 return (0); 6459 } 6460 } 6461 return (1); 6462} 6463 6464static int 6465zfs_do_diff(int argc, char **argv) 6466{ 6467 zfs_handle_t *zhp; 6468 int flags = 0; 6469 char *tosnap = NULL; 6470 char *fromsnap = NULL; 6471 char *atp, *copy; 6472 int err; 6473 int c; 6474 6475 while ((c = getopt(argc, argv, "FHt")) != -1) { 6476 switch (c) { 6477 case 'F': 6478 flags |= ZFS_DIFF_CLASSIFY; 6479 break; 6480 case 'H': 6481 flags |= ZFS_DIFF_PARSEABLE; 6482 break; 6483 case 't': 6484 flags |= ZFS_DIFF_TIMESTAMP; 6485 break; 6486 default: 6487 (void) fprintf(stderr, 6488 gettext("invalid option '%c'\n"), optopt); 6489 usage(B_FALSE); 6490 } 6491 } 6492 6493 argc -= optind; 6494 argv += optind; 6495 6496 if (argc < 1) { 6497 (void) fprintf(stderr, 6498 gettext("must provide at least one snapshot name\n")); 6499 usage(B_FALSE); 6500 } 6501 6502 if (argc > 2) { 6503 (void) fprintf(stderr, gettext("too many arguments\n")); 6504 usage(B_FALSE); 6505 } 6506 6507 fromsnap = argv[0]; 6508 tosnap = (argc == 2) ? argv[1] : NULL; 6509 6510 copy = NULL; 6511 if (*fromsnap != '@') 6512 copy = strdup(fromsnap); 6513 else if (tosnap) 6514 copy = strdup(tosnap); 6515 if (copy == NULL) 6516 usage(B_FALSE); 6517 6518 if (atp = strchr(copy, '@')) 6519 *atp = '\0'; 6520 6521 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6522 return (1); 6523 6524 free(copy); 6525 6526 /* 6527 * Ignore SIGPIPE so that the library can give us 6528 * information on any failure 6529 */ 6530 (void) sigignore(SIGPIPE); 6531 6532 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6533 6534 zfs_close(zhp); 6535 6536 return (err != 0); 6537} 6538 6539int 6540main(int argc, char **argv) 6541{ 6542 int ret; 6543 int i; 6544 char *progname; 6545 char *cmdname; 6546 6547 (void) setlocale(LC_ALL, ""); 6548 (void) textdomain(TEXT_DOMAIN); 6549 6550 opterr = 0; 6551 6552 if ((g_zfs = libzfs_init()) == NULL) { 6553 (void) fprintf(stderr, gettext("internal error: failed to " 6554 "initialize ZFS library\n")); 6555 return (1); 6556 } 6557 6558 zpool_set_history_str("zfs", argc, argv, history_str); 6559 verify(zpool_stage_history(g_zfs, history_str) == 0); 6560 6561 libzfs_print_on_error(g_zfs, B_TRUE); 6562 6563 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6564 (void) fprintf(stderr, gettext("internal error: unable to " 6565 "open %s\n"), MNTTAB); 6566 return (1); 6567 } 6568 6569 /* 6570 * This command also doubles as the /etc/fs mount and unmount program. 6571 * Determine if we should take this behavior based on argv[0]. 6572 */ 6573 progname = basename(argv[0]); 6574 if (strcmp(progname, "mount") == 0) { 6575 ret = manual_mount(argc, argv); 6576 } else if (strcmp(progname, "umount") == 0) { 6577 ret = manual_unmount(argc, argv); 6578 } else { 6579 /* 6580 * Make sure the user has specified some command. 6581 */ 6582 if (argc < 2) { 6583 (void) fprintf(stderr, gettext("missing command\n")); 6584 usage(B_FALSE); 6585 } 6586 6587 cmdname = argv[1]; 6588 6589 /* 6590 * The 'umount' command is an alias for 'unmount' 6591 */ 6592 if (strcmp(cmdname, "umount") == 0) 6593 cmdname = "unmount"; 6594 6595 /* 6596 * The 'recv' command is an alias for 'receive' 6597 */ 6598 if (strcmp(cmdname, "recv") == 0) 6599 cmdname = "receive"; 6600 6601 /* 6602 * Special case '-?' 6603 */ 6604 if (strcmp(cmdname, "-?") == 0) 6605 usage(B_TRUE); 6606 6607 /* 6608 * Run the appropriate command. 6609 */ 6610 libzfs_mnttab_cache(g_zfs, B_TRUE); 6611 if (find_command_idx(cmdname, &i) == 0) { 6612 current_command = &command_table[i]; 6613 ret = command_table[i].func(argc - 1, argv + 1); 6614 } else if (strchr(cmdname, '=') != NULL) { 6615 verify(find_command_idx("set", &i) == 0); 6616 current_command = &command_table[i]; 6617 ret = command_table[i].func(argc, argv); 6618 } else { 6619 (void) fprintf(stderr, gettext("unrecognized " 6620 "command '%s'\n"), cmdname); 6621 usage(B_FALSE); 6622 } 6623 libzfs_mnttab_cache(g_zfs, B_FALSE); 6624 } 6625 6626 (void) fclose(mnttab_file); 6627 6628 libzfs_fini(g_zfs); 6629 6630 /* 6631 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6632 * for the purposes of running ::findleaks. 6633 */ 6634 if (getenv("ZFS_ABORT") != NULL) { 6635 (void) printf("dumping core by request\n"); 6636 abort(); 6637 } 6638 6639 return (ret); 6640} 6641