zfs_main.c revision 223620
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 */ 26 27#include <assert.h> 28#include <ctype.h> 29#include <errno.h> 30#include <libgen.h> 31#include <libintl.h> 32#include <libuutil.h> 33#include <libnvpair.h> 34#include <locale.h> 35#include <stddef.h> 36#include <stdio.h> 37#include <stdlib.h> 38#include <strings.h> 39#include <unistd.h> 40#include <fcntl.h> 41#include <zone.h> 42#include <grp.h> 43#include <pwd.h> 44#include <signal.h> 45#include <sys/list.h> 46#include <sys/mntent.h> 47#include <sys/mnttab.h> 48#include <sys/mount.h> 49#include <sys/stat.h> 50#include <sys/fs/zfs.h> 51#include <sys/types.h> 52#include <time.h> 53 54#include <libzfs.h> 55#include <zfs_prop.h> 56#include <zfs_deleg.h> 57#include <libuutil.h> 58#ifdef sun 59#include <aclutils.h> 60#include <directory.h> 61#endif 62 63#include "zfs_iter.h" 64#include "zfs_util.h" 65#include "zfs_comutil.h" 66 67libzfs_handle_t *g_zfs; 68 69static FILE *mnttab_file; 70static char history_str[HIS_MAX_RECORD_LEN]; 71 72static int zfs_do_clone(int argc, char **argv); 73static int zfs_do_create(int argc, char **argv); 74static int zfs_do_destroy(int argc, char **argv); 75static int zfs_do_get(int argc, char **argv); 76static int zfs_do_inherit(int argc, char **argv); 77static int zfs_do_list(int argc, char **argv); 78static int zfs_do_mount(int argc, char **argv); 79static int zfs_do_rename(int argc, char **argv); 80static int zfs_do_rollback(int argc, char **argv); 81static int zfs_do_set(int argc, char **argv); 82static int zfs_do_upgrade(int argc, char **argv); 83static int zfs_do_snapshot(int argc, char **argv); 84static int zfs_do_unmount(int argc, char **argv); 85static int zfs_do_share(int argc, char **argv); 86static int zfs_do_unshare(int argc, char **argv); 87static int zfs_do_send(int argc, char **argv); 88static int zfs_do_receive(int argc, char **argv); 89static int zfs_do_promote(int argc, char **argv); 90static int zfs_do_userspace(int argc, char **argv); 91static int zfs_do_allow(int argc, char **argv); 92static int zfs_do_unallow(int argc, char **argv); 93static int zfs_do_hold(int argc, char **argv); 94static int zfs_do_holds(int argc, char **argv); 95static int zfs_do_release(int argc, char **argv); 96static int zfs_do_diff(int argc, char **argv); 97static int zfs_do_jail(int argc, char **argv); 98static int zfs_do_unjail(int argc, char **argv); 99 100/* 101 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 102 */ 103 104#ifdef DEBUG 105const char * 106_umem_debug_init(void) 107{ 108 return ("default,verbose"); /* $UMEM_DEBUG setting */ 109} 110 111const char * 112_umem_logging_init(void) 113{ 114 return ("fail,contents"); /* $UMEM_LOGGING setting */ 115} 116#endif 117 118typedef enum { 119 HELP_CLONE, 120 HELP_CREATE, 121 HELP_DESTROY, 122 HELP_GET, 123 HELP_INHERIT, 124 HELP_UPGRADE, 125 HELP_JAIL, 126 HELP_UNJAIL, 127 HELP_LIST, 128 HELP_MOUNT, 129 HELP_PROMOTE, 130 HELP_RECEIVE, 131 HELP_RENAME, 132 HELP_ROLLBACK, 133 HELP_SEND, 134 HELP_SET, 135 HELP_SHARE, 136 HELP_SNAPSHOT, 137 HELP_UNMOUNT, 138 HELP_UNSHARE, 139 HELP_ALLOW, 140 HELP_UNALLOW, 141 HELP_USERSPACE, 142 HELP_GROUPSPACE, 143 HELP_HOLD, 144 HELP_HOLDS, 145 HELP_RELEASE, 146 HELP_DIFF 147} zfs_help_t; 148 149typedef struct zfs_command { 150 const char *name; 151 int (*func)(int argc, char **argv); 152 zfs_help_t usage; 153} zfs_command_t; 154 155/* 156 * Master command table. Each ZFS command has a name, associated function, and 157 * usage message. The usage messages need to be internationalized, so we have 158 * to have a function to return the usage message based on a command index. 159 * 160 * These commands are organized according to how they are displayed in the usage 161 * message. An empty command (one with a NULL name) indicates an empty line in 162 * the generic usage message. 163 */ 164static zfs_command_t command_table[] = { 165 { "create", zfs_do_create, HELP_CREATE }, 166 { "destroy", zfs_do_destroy, HELP_DESTROY }, 167 { NULL }, 168 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 169 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 170 { "clone", zfs_do_clone, HELP_CLONE }, 171 { "promote", zfs_do_promote, HELP_PROMOTE }, 172 { "rename", zfs_do_rename, HELP_RENAME }, 173 { NULL }, 174 { "list", zfs_do_list, HELP_LIST }, 175 { NULL }, 176 { "set", zfs_do_set, HELP_SET }, 177 { "get", zfs_do_get, HELP_GET }, 178 { "inherit", zfs_do_inherit, HELP_INHERIT }, 179 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 180 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 181 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 182 { NULL }, 183 { "mount", zfs_do_mount, HELP_MOUNT }, 184 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 185 { "share", zfs_do_share, HELP_SHARE }, 186 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 187 { NULL }, 188 { "send", zfs_do_send, HELP_SEND }, 189 { "receive", zfs_do_receive, HELP_RECEIVE }, 190 { NULL }, 191 { "allow", zfs_do_allow, HELP_ALLOW }, 192 { NULL }, 193 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 194 { NULL }, 195 { "hold", zfs_do_hold, HELP_HOLD }, 196 { "holds", zfs_do_holds, HELP_HOLDS }, 197 { "release", zfs_do_release, HELP_RELEASE }, 198 { "diff", zfs_do_diff, HELP_DIFF }, 199 { NULL }, 200 { "jail", zfs_do_jail, HELP_JAIL }, 201 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 202}; 203 204#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 205 206zfs_command_t *current_command; 207 208static const char * 209get_usage(zfs_help_t idx) 210{ 211 switch (idx) { 212 case HELP_CLONE: 213 return (gettext("\tclone [-p] [-o property=value] ... " 214 "<snapshot> <filesystem|volume>\n")); 215 case HELP_CREATE: 216 return (gettext("\tcreate [-p] [-o property=value] ... " 217 "<filesystem>\n" 218 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 219 "-V <size> <volume>\n")); 220 case HELP_DESTROY: 221 return (gettext("\tdestroy [-rRf] <filesystem|volume>\n" 222 "\tdestroy [-rRd] <snapshot>\n")); 223 case HELP_GET: 224 return (gettext("\tget [-rHp] [-d max] " 225 "[-o \"all\" | field[,...]] [-s source[,...]]\n" 226 "\t <\"all\" | property[,...]> " 227 "[filesystem|volume|snapshot] ...\n")); 228 case HELP_INHERIT: 229 return (gettext("\tinherit [-rS] <property> " 230 "<filesystem|volume|snapshot> ...\n")); 231 case HELP_UPGRADE: 232 return (gettext("\tupgrade [-v]\n" 233 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 234 case HELP_JAIL: 235 return (gettext("\tjail <jailid> <filesystem>\n")); 236 case HELP_UNJAIL: 237 return (gettext("\tunjail <jailid> <filesystem>\n")); 238 case HELP_LIST: 239 return (gettext("\tlist [-rH][-d max] " 240 "[-o property[,...]] [-t type[,...]] [-s property] ...\n" 241 "\t [-S property] ... " 242 "[filesystem|volume|snapshot] ...\n")); 243 case HELP_MOUNT: 244 return (gettext("\tmount\n" 245 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 246 case HELP_PROMOTE: 247 return (gettext("\tpromote <clone-filesystem>\n")); 248 case HELP_RECEIVE: 249 return (gettext("\treceive [-vnFu] <filesystem|volume|" 250 "snapshot>\n" 251 "\treceive [-vnFu] [-d | -e] <filesystem>\n")); 252 case HELP_RENAME: 253 return (gettext("\trename <filesystem|volume|snapshot> " 254 "<filesystem|volume|snapshot>\n" 255 "\trename -p <filesystem|volume> <filesystem|volume>\n" 256 "\trename -r <snapshot> <snapshot>")); 257 case HELP_ROLLBACK: 258 return (gettext("\trollback [-rRf] <snapshot>\n")); 259 case HELP_SEND: 260 return (gettext("\tsend [-RDp] [-[iI] snapshot] <snapshot>\n")); 261 case HELP_SET: 262 return (gettext("\tset <property=value> " 263 "<filesystem|volume|snapshot> ...\n")); 264 case HELP_SHARE: 265 return (gettext("\tshare <-a | filesystem>\n")); 266 case HELP_SNAPSHOT: 267 return (gettext("\tsnapshot [-r] [-o property=value] ... " 268 "<filesystem@snapname|volume@snapname>\n")); 269 case HELP_UNMOUNT: 270 return (gettext("\tunmount [-f] " 271 "<-a | filesystem|mountpoint>\n")); 272 case HELP_UNSHARE: 273 return (gettext("\tunshare " 274 "<-a | filesystem|mountpoint>\n")); 275 case HELP_ALLOW: 276 return (gettext("\tallow <filesystem|volume>\n" 277 "\tallow [-ldug] " 278 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 279 "\t <filesystem|volume>\n" 280 "\tallow [-ld] -e <perm|@setname>[,...] " 281 "<filesystem|volume>\n" 282 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 283 "\tallow -s @setname <perm|@setname>[,...] " 284 "<filesystem|volume>\n")); 285 case HELP_UNALLOW: 286 return (gettext("\tunallow [-rldug] " 287 "<\"everyone\"|user|group>[,...]\n" 288 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 289 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 290 "<filesystem|volume>\n" 291 "\tunallow [-r] -c [<perm|@setname>[,...]] " 292 "<filesystem|volume>\n" 293 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 294 "<filesystem|volume>\n")); 295 case HELP_USERSPACE: 296 return (gettext("\tuserspace [-hniHp] [-o field[,...]] " 297 "[-sS field] ... [-t type[,...]]\n" 298 "\t <filesystem|snapshot>\n")); 299 case HELP_GROUPSPACE: 300 return (gettext("\tgroupspace [-hniHpU] [-o field[,...]] " 301 "[-sS field] ... [-t type[,...]]\n" 302 "\t <filesystem|snapshot>\n")); 303 case HELP_HOLD: 304 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 305 case HELP_HOLDS: 306 return (gettext("\tholds [-r] <snapshot> ...\n")); 307 case HELP_RELEASE: 308 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 309 case HELP_DIFF: 310 return (gettext("\tdiff [-FHt] <snapshot> " 311 "[snapshot|filesystem]\n")); 312 } 313 314 abort(); 315 /* NOTREACHED */ 316} 317 318void 319nomem(void) 320{ 321 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 322 exit(1); 323} 324 325/* 326 * Utility function to guarantee malloc() success. 327 */ 328 329void * 330safe_malloc(size_t size) 331{ 332 void *data; 333 334 if ((data = calloc(1, size)) == NULL) 335 nomem(); 336 337 return (data); 338} 339 340static char * 341safe_strdup(char *str) 342{ 343 char *dupstr = strdup(str); 344 345 if (dupstr == NULL) 346 nomem(); 347 348 return (dupstr); 349} 350 351/* 352 * Callback routine that will print out information for each of 353 * the properties. 354 */ 355static int 356usage_prop_cb(int prop, void *cb) 357{ 358 FILE *fp = cb; 359 360 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 361 362 if (zfs_prop_readonly(prop)) 363 (void) fprintf(fp, " NO "); 364 else 365 (void) fprintf(fp, "YES "); 366 367 if (zfs_prop_inheritable(prop)) 368 (void) fprintf(fp, " YES "); 369 else 370 (void) fprintf(fp, " NO "); 371 372 if (zfs_prop_values(prop) == NULL) 373 (void) fprintf(fp, "-\n"); 374 else 375 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 376 377 return (ZPROP_CONT); 378} 379 380/* 381 * Display usage message. If we're inside a command, display only the usage for 382 * that command. Otherwise, iterate over the entire command table and display 383 * a complete usage message. 384 */ 385static void 386usage(boolean_t requested) 387{ 388 int i; 389 boolean_t show_properties = B_FALSE; 390 FILE *fp = requested ? stdout : stderr; 391 392 if (current_command == NULL) { 393 394 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 395 (void) fprintf(fp, 396 gettext("where 'command' is one of the following:\n\n")); 397 398 for (i = 0; i < NCOMMAND; i++) { 399 if (command_table[i].name == NULL) 400 (void) fprintf(fp, "\n"); 401 else 402 (void) fprintf(fp, "%s", 403 get_usage(command_table[i].usage)); 404 } 405 406 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 407 "pool/[dataset/]*dataset[@name]\n")); 408 } else { 409 (void) fprintf(fp, gettext("usage:\n")); 410 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 411 } 412 413 if (current_command != NULL && 414 (strcmp(current_command->name, "set") == 0 || 415 strcmp(current_command->name, "get") == 0 || 416 strcmp(current_command->name, "inherit") == 0 || 417 strcmp(current_command->name, "list") == 0)) 418 show_properties = B_TRUE; 419 420 if (show_properties) { 421 (void) fprintf(fp, 422 gettext("\nThe following properties are supported:\n")); 423 424 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 425 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 426 427 /* Iterate over all properties */ 428 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 429 ZFS_TYPE_DATASET); 430 431 (void) fprintf(fp, "\t%-15s ", "userused@..."); 432 (void) fprintf(fp, " NO NO <size>\n"); 433 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 434 (void) fprintf(fp, " NO NO <size>\n"); 435 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 436 (void) fprintf(fp, "YES NO <size> | none\n"); 437 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 438 (void) fprintf(fp, "YES NO <size> | none\n"); 439 440 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 441 "with standard units such as K, M, G, etc.\n")); 442 (void) fprintf(fp, gettext("\nUser-defined properties can " 443 "be specified by using a name containing a colon (:).\n")); 444 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 445 "properties must be appended with\n" 446 "a user or group specifier of one of these forms:\n" 447 " POSIX name (eg: \"matt\")\n" 448 " POSIX id (eg: \"126829\")\n" 449 " SMB name@domain (eg: \"matt@sun\")\n" 450 " SMB SID (eg: \"S-1-234-567-89\")\n")); 451 } else { 452 (void) fprintf(fp, 453 gettext("\nFor the property list, run: %s\n"), 454 "zfs set|get"); 455 (void) fprintf(fp, 456 gettext("\nFor the delegated permission list, run: %s\n"), 457 "zfs allow|unallow"); 458 } 459 460 /* 461 * See comments at end of main(). 462 */ 463 if (getenv("ZFS_ABORT") != NULL) { 464 (void) printf("dumping core by request\n"); 465 abort(); 466 } 467 468 exit(requested ? 0 : 2); 469} 470 471static int 472parseprop(nvlist_t *props) 473{ 474 char *propname = optarg; 475 char *propval, *strval; 476 477 if ((propval = strchr(propname, '=')) == NULL) { 478 (void) fprintf(stderr, gettext("missing " 479 "'=' for -o option\n")); 480 return (-1); 481 } 482 *propval = '\0'; 483 propval++; 484 if (nvlist_lookup_string(props, propname, &strval) == 0) { 485 (void) fprintf(stderr, gettext("property '%s' " 486 "specified multiple times\n"), propname); 487 return (-1); 488 } 489 if (nvlist_add_string(props, propname, propval) != 0) 490 nomem(); 491 return (0); 492} 493 494static int 495parse_depth(char *opt, int *flags) 496{ 497 char *tmp; 498 int depth; 499 500 depth = (int)strtol(opt, &tmp, 0); 501 if (*tmp) { 502 (void) fprintf(stderr, 503 gettext("%s is not an integer\n"), optarg); 504 usage(B_FALSE); 505 } 506 if (depth < 0) { 507 (void) fprintf(stderr, 508 gettext("Depth can not be negative.\n")); 509 usage(B_FALSE); 510 } 511 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 512 return (depth); 513} 514 515#define PROGRESS_DELAY 2 /* seconds */ 516 517static 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"; 518static time_t pt_begin; 519static char *pt_header = NULL; 520static boolean_t pt_shown; 521 522static void 523start_progress_timer(void) 524{ 525 pt_begin = time(NULL) + PROGRESS_DELAY; 526 pt_shown = B_FALSE; 527} 528 529static void 530set_progress_header(char *header) 531{ 532 assert(pt_header == NULL); 533 pt_header = safe_strdup(header); 534 if (pt_shown) { 535 (void) printf("%s: ", header); 536 (void) fflush(stdout); 537 } 538} 539 540static void 541update_progress(char *update) 542{ 543 if (!pt_shown && time(NULL) > pt_begin) { 544 int len = strlen(update); 545 546 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 547 pt_reverse); 548 (void) fflush(stdout); 549 pt_shown = B_TRUE; 550 } else if (pt_shown) { 551 int len = strlen(update); 552 553 (void) printf("%s%*.*s", update, len, len, pt_reverse); 554 (void) fflush(stdout); 555 } 556} 557 558static void 559finish_progress(char *done) 560{ 561 if (pt_shown) { 562 (void) printf("%s\n", done); 563 (void) fflush(stdout); 564 } 565 free(pt_header); 566 pt_header = NULL; 567} 568/* 569 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 570 * 571 * Given an existing dataset, create a writable copy whose initial contents 572 * are the same as the source. The newly created dataset maintains a 573 * dependency on the original; the original cannot be destroyed so long as 574 * the clone exists. 575 * 576 * The '-p' flag creates all the non-existing ancestors of the target first. 577 */ 578static int 579zfs_do_clone(int argc, char **argv) 580{ 581 zfs_handle_t *zhp = NULL; 582 boolean_t parents = B_FALSE; 583 nvlist_t *props; 584 int ret; 585 int c; 586 587 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 588 nomem(); 589 590 /* check options */ 591 while ((c = getopt(argc, argv, "o:p")) != -1) { 592 switch (c) { 593 case 'o': 594 if (parseprop(props)) 595 return (1); 596 break; 597 case 'p': 598 parents = B_TRUE; 599 break; 600 case '?': 601 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 602 optopt); 603 goto usage; 604 } 605 } 606 607 argc -= optind; 608 argv += optind; 609 610 /* check number of arguments */ 611 if (argc < 1) { 612 (void) fprintf(stderr, gettext("missing source dataset " 613 "argument\n")); 614 goto usage; 615 } 616 if (argc < 2) { 617 (void) fprintf(stderr, gettext("missing target dataset " 618 "argument\n")); 619 goto usage; 620 } 621 if (argc > 2) { 622 (void) fprintf(stderr, gettext("too many arguments\n")); 623 goto usage; 624 } 625 626 /* open the source dataset */ 627 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 628 return (1); 629 630 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 631 ZFS_TYPE_VOLUME)) { 632 /* 633 * Now create the ancestors of the target dataset. If the 634 * target already exists and '-p' option was used we should not 635 * complain. 636 */ 637 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 638 ZFS_TYPE_VOLUME)) 639 return (0); 640 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 641 return (1); 642 } 643 644 /* pass to libzfs */ 645 ret = zfs_clone(zhp, argv[1], props); 646 647 /* create the mountpoint if necessary */ 648 if (ret == 0) { 649 zfs_handle_t *clone; 650 651 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 652 if (clone != NULL) { 653 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 654 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 655 ret = zfs_share(clone); 656 zfs_close(clone); 657 } 658 } 659 660 zfs_close(zhp); 661 nvlist_free(props); 662 663 return (!!ret); 664 665usage: 666 if (zhp) 667 zfs_close(zhp); 668 nvlist_free(props); 669 usage(B_FALSE); 670 return (-1); 671} 672 673/* 674 * zfs create [-p] [-o prop=value] ... fs 675 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 676 * 677 * Create a new dataset. This command can be used to create filesystems 678 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 679 * For volumes, the user must specify a size to be used. 680 * 681 * The '-s' flag applies only to volumes, and indicates that we should not try 682 * to set the reservation for this volume. By default we set a reservation 683 * equal to the size for any volume. For pools with SPA_VERSION >= 684 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 685 * 686 * The '-p' flag creates all the non-existing ancestors of the target first. 687 */ 688static int 689zfs_do_create(int argc, char **argv) 690{ 691 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 692 zfs_handle_t *zhp = NULL; 693 uint64_t volsize; 694 int c; 695 boolean_t noreserve = B_FALSE; 696 boolean_t bflag = B_FALSE; 697 boolean_t parents = B_FALSE; 698 int ret = 1; 699 nvlist_t *props; 700 uint64_t intval; 701 int canmount = ZFS_CANMOUNT_OFF; 702 703 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 704 nomem(); 705 706 /* check options */ 707 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 708 switch (c) { 709 case 'V': 710 type = ZFS_TYPE_VOLUME; 711 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 712 (void) fprintf(stderr, gettext("bad volume " 713 "size '%s': %s\n"), optarg, 714 libzfs_error_description(g_zfs)); 715 goto error; 716 } 717 718 if (nvlist_add_uint64(props, 719 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 720 nomem(); 721 volsize = intval; 722 break; 723 case 'p': 724 parents = B_TRUE; 725 break; 726 case 'b': 727 bflag = B_TRUE; 728 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 729 (void) fprintf(stderr, gettext("bad volume " 730 "block size '%s': %s\n"), optarg, 731 libzfs_error_description(g_zfs)); 732 goto error; 733 } 734 735 if (nvlist_add_uint64(props, 736 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 737 intval) != 0) 738 nomem(); 739 break; 740 case 'o': 741 if (parseprop(props)) 742 goto error; 743 break; 744 case 's': 745 noreserve = B_TRUE; 746 break; 747 case ':': 748 (void) fprintf(stderr, gettext("missing size " 749 "argument\n")); 750 goto badusage; 751 break; 752 case '?': 753 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 754 optopt); 755 goto badusage; 756 } 757 } 758 759 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 760 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 761 "used when creating a volume\n")); 762 goto badusage; 763 } 764 765 argc -= optind; 766 argv += optind; 767 768 /* check number of arguments */ 769 if (argc == 0) { 770 (void) fprintf(stderr, gettext("missing %s argument\n"), 771 zfs_type_to_name(type)); 772 goto badusage; 773 } 774 if (argc > 1) { 775 (void) fprintf(stderr, gettext("too many arguments\n")); 776 goto badusage; 777 } 778 779 if (type == ZFS_TYPE_VOLUME && !noreserve) { 780 zpool_handle_t *zpool_handle; 781 uint64_t spa_version; 782 char *p; 783 zfs_prop_t resv_prop; 784 char *strval; 785 786 if (p = strchr(argv[0], '/')) 787 *p = '\0'; 788 zpool_handle = zpool_open(g_zfs, argv[0]); 789 if (p != NULL) 790 *p = '/'; 791 if (zpool_handle == NULL) 792 goto error; 793 spa_version = zpool_get_prop_int(zpool_handle, 794 ZPOOL_PROP_VERSION, NULL); 795 zpool_close(zpool_handle); 796 if (spa_version >= SPA_VERSION_REFRESERVATION) 797 resv_prop = ZFS_PROP_REFRESERVATION; 798 else 799 resv_prop = ZFS_PROP_RESERVATION; 800 volsize = zvol_volsize_to_reservation(volsize, props); 801 802 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 803 &strval) != 0) { 804 if (nvlist_add_uint64(props, 805 zfs_prop_to_name(resv_prop), volsize) != 0) { 806 nvlist_free(props); 807 nomem(); 808 } 809 } 810 } 811 812 if (parents && zfs_name_valid(argv[0], type)) { 813 /* 814 * Now create the ancestors of target dataset. If the target 815 * already exists and '-p' option was used we should not 816 * complain. 817 */ 818 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 819 ret = 0; 820 goto error; 821 } 822 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 823 goto error; 824 } 825 826 /* pass to libzfs */ 827 if (zfs_create(g_zfs, argv[0], type, props) != 0) 828 goto error; 829 830 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 831 goto error; 832 833 ret = 0; 834 /* 835 * if the user doesn't want the dataset automatically mounted, 836 * then skip the mount/share step 837 */ 838 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 839 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 840 841 /* 842 * Mount and/or share the new filesystem as appropriate. We provide a 843 * verbose error message to let the user know that their filesystem was 844 * in fact created, even if we failed to mount or share it. 845 */ 846 if (canmount == ZFS_CANMOUNT_ON) { 847 if (zfs_mount(zhp, NULL, 0) != 0) { 848 (void) fprintf(stderr, gettext("filesystem " 849 "successfully created, but not mounted\n")); 850 ret = 1; 851 } else if (zfs_share(zhp) != 0) { 852 (void) fprintf(stderr, gettext("filesystem " 853 "successfully created, but not shared\n")); 854 ret = 1; 855 } 856 } 857 858error: 859 if (zhp) 860 zfs_close(zhp); 861 nvlist_free(props); 862 return (ret); 863badusage: 864 nvlist_free(props); 865 usage(B_FALSE); 866 return (2); 867} 868 869/* 870 * zfs destroy [-rRf] <fs, vol> 871 * zfs destroy [-rRd] <snap> 872 * 873 * -r Recursively destroy all children 874 * -R Recursively destroy all dependents, including clones 875 * -f Force unmounting of any dependents 876 * -d If we can't destroy now, mark for deferred destruction 877 * 878 * Destroys the given dataset. By default, it will unmount any filesystems, 879 * and refuse to destroy a dataset that has any dependents. A dependent can 880 * either be a child, or a clone of a child. 881 */ 882typedef struct destroy_cbdata { 883 boolean_t cb_first; 884 int cb_force; 885 int cb_recurse; 886 int cb_error; 887 int cb_needforce; 888 int cb_doclones; 889 boolean_t cb_closezhp; 890 zfs_handle_t *cb_target; 891 char *cb_snapname; 892 boolean_t cb_defer_destroy; 893} destroy_cbdata_t; 894 895/* 896 * Check for any dependents based on the '-r' or '-R' flags. 897 */ 898static int 899destroy_check_dependent(zfs_handle_t *zhp, void *data) 900{ 901 destroy_cbdata_t *cbp = data; 902 const char *tname = zfs_get_name(cbp->cb_target); 903 const char *name = zfs_get_name(zhp); 904 905 if (strncmp(tname, name, strlen(tname)) == 0 && 906 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 907 /* 908 * This is a direct descendant, not a clone somewhere else in 909 * the hierarchy. 910 */ 911 if (cbp->cb_recurse) 912 goto out; 913 914 if (cbp->cb_first) { 915 (void) fprintf(stderr, gettext("cannot destroy '%s': " 916 "%s has children\n"), 917 zfs_get_name(cbp->cb_target), 918 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 919 (void) fprintf(stderr, gettext("use '-r' to destroy " 920 "the following datasets:\n")); 921 cbp->cb_first = B_FALSE; 922 cbp->cb_error = 1; 923 } 924 925 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 926 } else { 927 /* 928 * This is a clone. We only want to report this if the '-r' 929 * wasn't specified, or the target is a snapshot. 930 */ 931 if (!cbp->cb_recurse && 932 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 933 goto out; 934 935 if (cbp->cb_first) { 936 (void) fprintf(stderr, gettext("cannot destroy '%s': " 937 "%s has dependent clones\n"), 938 zfs_get_name(cbp->cb_target), 939 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 940 (void) fprintf(stderr, gettext("use '-R' to destroy " 941 "the following datasets:\n")); 942 cbp->cb_first = B_FALSE; 943 cbp->cb_error = 1; 944 } 945 946 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 947 } 948 949out: 950 zfs_close(zhp); 951 return (0); 952} 953 954static int 955destroy_callback(zfs_handle_t *zhp, void *data) 956{ 957 destroy_cbdata_t *cbp = data; 958 959 /* 960 * Ignore pools (which we've already flagged as an error before getting 961 * here). 962 */ 963 if (strchr(zfs_get_name(zhp), '/') == NULL && 964 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 965 zfs_close(zhp); 966 return (0); 967 } 968 969 /* 970 * Bail out on the first error. 971 */ 972 if (zfs_unmount(zhp, NULL, cbp->cb_force ? MS_FORCE : 0) != 0 || 973 zfs_destroy(zhp, cbp->cb_defer_destroy) != 0) { 974 zfs_close(zhp); 975 return (-1); 976 } 977 978 zfs_close(zhp); 979 return (0); 980} 981 982static int 983destroy_snap_clones(zfs_handle_t *zhp, void *arg) 984{ 985 destroy_cbdata_t *cbp = arg; 986 char thissnap[MAXPATHLEN]; 987 zfs_handle_t *szhp; 988 boolean_t closezhp = cbp->cb_closezhp; 989 int rv; 990 991 (void) snprintf(thissnap, sizeof (thissnap), 992 "%s@%s", zfs_get_name(zhp), cbp->cb_snapname); 993 994 libzfs_print_on_error(g_zfs, B_FALSE); 995 szhp = zfs_open(g_zfs, thissnap, ZFS_TYPE_SNAPSHOT); 996 libzfs_print_on_error(g_zfs, B_TRUE); 997 if (szhp) { 998 /* 999 * Destroy any clones of this snapshot 1000 */ 1001 if (zfs_iter_dependents(szhp, B_FALSE, destroy_callback, 1002 cbp) != 0) { 1003 zfs_close(szhp); 1004 if (closezhp) 1005 zfs_close(zhp); 1006 return (-1); 1007 } 1008 zfs_close(szhp); 1009 } 1010 1011 cbp->cb_closezhp = B_TRUE; 1012 rv = zfs_iter_filesystems(zhp, destroy_snap_clones, arg); 1013 if (closezhp) 1014 zfs_close(zhp); 1015 return (rv); 1016} 1017 1018static int 1019zfs_do_destroy(int argc, char **argv) 1020{ 1021 destroy_cbdata_t cb = { 0 }; 1022 int c; 1023 zfs_handle_t *zhp; 1024 char *cp; 1025 zfs_type_t type = ZFS_TYPE_DATASET; 1026 1027 /* check options */ 1028 while ((c = getopt(argc, argv, "dfrR")) != -1) { 1029 switch (c) { 1030 case 'd': 1031 cb.cb_defer_destroy = B_TRUE; 1032 type = ZFS_TYPE_SNAPSHOT; 1033 break; 1034 case 'f': 1035 cb.cb_force = 1; 1036 break; 1037 case 'r': 1038 cb.cb_recurse = 1; 1039 break; 1040 case 'R': 1041 cb.cb_recurse = 1; 1042 cb.cb_doclones = 1; 1043 break; 1044 case '?': 1045 default: 1046 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1047 optopt); 1048 usage(B_FALSE); 1049 } 1050 } 1051 1052 argc -= optind; 1053 argv += optind; 1054 1055 /* check number of arguments */ 1056 if (argc == 0) { 1057 (void) fprintf(stderr, gettext("missing path argument\n")); 1058 usage(B_FALSE); 1059 } 1060 if (argc > 1) { 1061 (void) fprintf(stderr, gettext("too many arguments\n")); 1062 usage(B_FALSE); 1063 } 1064 1065 /* 1066 * If we are doing recursive destroy of a snapshot, then the 1067 * named snapshot may not exist. Go straight to libzfs. 1068 */ 1069 if (cb.cb_recurse && (cp = strchr(argv[0], '@'))) { 1070 int ret; 1071 1072 *cp = '\0'; 1073 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 1074 return (1); 1075 *cp = '@'; 1076 cp++; 1077 1078 if (cb.cb_doclones) { 1079 boolean_t defer = cb.cb_defer_destroy; 1080 1081 /* 1082 * Temporarily ignore the defer_destroy setting since 1083 * it's not supported for clones. 1084 */ 1085 cb.cb_defer_destroy = B_FALSE; 1086 cb.cb_snapname = cp; 1087 if (destroy_snap_clones(zhp, &cb) != 0) { 1088 zfs_close(zhp); 1089 return (1); 1090 } 1091 cb.cb_defer_destroy = defer; 1092 } 1093 1094 ret = zfs_destroy_snaps(zhp, cp, cb.cb_defer_destroy); 1095 zfs_close(zhp); 1096 if (ret) { 1097 (void) fprintf(stderr, 1098 gettext("no snapshots destroyed\n")); 1099 } 1100 return (ret != 0); 1101 } 1102 1103 /* Open the given dataset */ 1104 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1105 return (1); 1106 1107 cb.cb_target = zhp; 1108 1109 /* 1110 * Perform an explicit check for pools before going any further. 1111 */ 1112 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1113 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1114 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1115 "operation does not apply to pools\n"), 1116 zfs_get_name(zhp)); 1117 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1118 "%s' to destroy all datasets in the pool\n"), 1119 zfs_get_name(zhp)); 1120 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1121 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1122 zfs_close(zhp); 1123 return (1); 1124 } 1125 1126 /* 1127 * Check for any dependents and/or clones. 1128 */ 1129 cb.cb_first = B_TRUE; 1130 if (!cb.cb_doclones && !cb.cb_defer_destroy && 1131 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1132 &cb) != 0) { 1133 zfs_close(zhp); 1134 return (1); 1135 } 1136 1137 if (cb.cb_error || (!cb.cb_defer_destroy && 1138 (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, &cb) != 0))) { 1139 zfs_close(zhp); 1140 return (1); 1141 } 1142 1143 /* 1144 * Do the real thing. The callback will close the handle regardless of 1145 * whether it succeeds or not. 1146 */ 1147 1148 if (destroy_callback(zhp, &cb) != 0) 1149 return (1); 1150 1151 return (0); 1152} 1153 1154static boolean_t 1155is_recvd_column(zprop_get_cbdata_t *cbp) 1156{ 1157 int i; 1158 zfs_get_column_t col; 1159 1160 for (i = 0; i < ZFS_GET_NCOLS && 1161 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1162 if (col == GET_COL_RECVD) 1163 return (B_TRUE); 1164 return (B_FALSE); 1165} 1166 1167/* 1168 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1169 * < all | property[,property]... > < fs | snap | vol > ... 1170 * 1171 * -r recurse over any child datasets 1172 * -H scripted mode. Headers are stripped, and fields are separated 1173 * by tabs instead of spaces. 1174 * -o Set of fields to display. One of "name,property,value, 1175 * received,source". Default is "name,property,value,source". 1176 * "all" is an alias for all five. 1177 * -s Set of sources to allow. One of 1178 * "local,default,inherited,received,temporary,none". Default is 1179 * all six. 1180 * -p Display values in parsable (literal) format. 1181 * 1182 * Prints properties for the given datasets. The user can control which 1183 * columns to display as well as which property types to allow. 1184 */ 1185 1186/* 1187 * Invoked to display the properties for a single dataset. 1188 */ 1189static int 1190get_callback(zfs_handle_t *zhp, void *data) 1191{ 1192 char buf[ZFS_MAXPROPLEN]; 1193 char rbuf[ZFS_MAXPROPLEN]; 1194 zprop_source_t sourcetype; 1195 char source[ZFS_MAXNAMELEN]; 1196 zprop_get_cbdata_t *cbp = data; 1197 nvlist_t *user_props = zfs_get_user_props(zhp); 1198 zprop_list_t *pl = cbp->cb_proplist; 1199 nvlist_t *propval; 1200 char *strval; 1201 char *sourceval; 1202 boolean_t received = is_recvd_column(cbp); 1203 1204 for (; pl != NULL; pl = pl->pl_next) { 1205 char *recvdval = NULL; 1206 /* 1207 * Skip the special fake placeholder. This will also skip over 1208 * the name property when 'all' is specified. 1209 */ 1210 if (pl->pl_prop == ZFS_PROP_NAME && 1211 pl == cbp->cb_proplist) 1212 continue; 1213 1214 if (pl->pl_prop != ZPROP_INVAL) { 1215 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1216 sizeof (buf), &sourcetype, source, 1217 sizeof (source), 1218 cbp->cb_literal) != 0) { 1219 if (pl->pl_all) 1220 continue; 1221 if (!zfs_prop_valid_for_type(pl->pl_prop, 1222 ZFS_TYPE_DATASET)) { 1223 (void) fprintf(stderr, 1224 gettext("No such property '%s'\n"), 1225 zfs_prop_to_name(pl->pl_prop)); 1226 continue; 1227 } 1228 sourcetype = ZPROP_SRC_NONE; 1229 (void) strlcpy(buf, "-", sizeof (buf)); 1230 } 1231 1232 if (received && (zfs_prop_get_recvd(zhp, 1233 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1234 cbp->cb_literal) == 0)) 1235 recvdval = rbuf; 1236 1237 zprop_print_one_property(zfs_get_name(zhp), cbp, 1238 zfs_prop_to_name(pl->pl_prop), 1239 buf, sourcetype, source, recvdval); 1240 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1241 sourcetype = ZPROP_SRC_LOCAL; 1242 1243 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1244 buf, sizeof (buf), cbp->cb_literal) != 0) { 1245 sourcetype = ZPROP_SRC_NONE; 1246 (void) strlcpy(buf, "-", sizeof (buf)); 1247 } 1248 1249 zprop_print_one_property(zfs_get_name(zhp), cbp, 1250 pl->pl_user_prop, buf, sourcetype, source, NULL); 1251 } else { 1252 if (nvlist_lookup_nvlist(user_props, 1253 pl->pl_user_prop, &propval) != 0) { 1254 if (pl->pl_all) 1255 continue; 1256 sourcetype = ZPROP_SRC_NONE; 1257 strval = "-"; 1258 } else { 1259 verify(nvlist_lookup_string(propval, 1260 ZPROP_VALUE, &strval) == 0); 1261 verify(nvlist_lookup_string(propval, 1262 ZPROP_SOURCE, &sourceval) == 0); 1263 1264 if (strcmp(sourceval, 1265 zfs_get_name(zhp)) == 0) { 1266 sourcetype = ZPROP_SRC_LOCAL; 1267 } else if (strcmp(sourceval, 1268 ZPROP_SOURCE_VAL_RECVD) == 0) { 1269 sourcetype = ZPROP_SRC_RECEIVED; 1270 } else { 1271 sourcetype = ZPROP_SRC_INHERITED; 1272 (void) strlcpy(source, 1273 sourceval, sizeof (source)); 1274 } 1275 } 1276 1277 if (received && (zfs_prop_get_recvd(zhp, 1278 pl->pl_user_prop, rbuf, sizeof (rbuf), 1279 cbp->cb_literal) == 0)) 1280 recvdval = rbuf; 1281 1282 zprop_print_one_property(zfs_get_name(zhp), cbp, 1283 pl->pl_user_prop, strval, sourcetype, 1284 source, recvdval); 1285 } 1286 } 1287 1288 return (0); 1289} 1290 1291static int 1292zfs_do_get(int argc, char **argv) 1293{ 1294 zprop_get_cbdata_t cb = { 0 }; 1295 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1296 char *value, *fields; 1297 int ret; 1298 int limit = 0; 1299 zprop_list_t fake_name = { 0 }; 1300 1301 /* 1302 * Set up default columns and sources. 1303 */ 1304 cb.cb_sources = ZPROP_SRC_ALL; 1305 cb.cb_columns[0] = GET_COL_NAME; 1306 cb.cb_columns[1] = GET_COL_PROPERTY; 1307 cb.cb_columns[2] = GET_COL_VALUE; 1308 cb.cb_columns[3] = GET_COL_SOURCE; 1309 cb.cb_type = ZFS_TYPE_DATASET; 1310 1311 /* check options */ 1312 while ((c = getopt(argc, argv, ":d:o:s:rHp")) != -1) { 1313 switch (c) { 1314 case 'p': 1315 cb.cb_literal = B_TRUE; 1316 break; 1317 case 'd': 1318 limit = parse_depth(optarg, &flags); 1319 break; 1320 case 'r': 1321 flags |= ZFS_ITER_RECURSE; 1322 break; 1323 case 'H': 1324 cb.cb_scripted = B_TRUE; 1325 break; 1326 case ':': 1327 (void) fprintf(stderr, gettext("missing argument for " 1328 "'%c' option\n"), optopt); 1329 usage(B_FALSE); 1330 break; 1331 case 'o': 1332 /* 1333 * Process the set of columns to display. We zero out 1334 * the structure to give us a blank slate. 1335 */ 1336 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1337 i = 0; 1338 while (*optarg != '\0') { 1339 static char *col_subopts[] = 1340 { "name", "property", "value", "received", 1341 "source", "all", NULL }; 1342 1343 if (i == ZFS_GET_NCOLS) { 1344 (void) fprintf(stderr, gettext("too " 1345 "many fields given to -o " 1346 "option\n")); 1347 usage(B_FALSE); 1348 } 1349 1350 switch (getsubopt(&optarg, col_subopts, 1351 &value)) { 1352 case 0: 1353 cb.cb_columns[i++] = GET_COL_NAME; 1354 break; 1355 case 1: 1356 cb.cb_columns[i++] = GET_COL_PROPERTY; 1357 break; 1358 case 2: 1359 cb.cb_columns[i++] = GET_COL_VALUE; 1360 break; 1361 case 3: 1362 cb.cb_columns[i++] = GET_COL_RECVD; 1363 flags |= ZFS_ITER_RECVD_PROPS; 1364 break; 1365 case 4: 1366 cb.cb_columns[i++] = GET_COL_SOURCE; 1367 break; 1368 case 5: 1369 if (i > 0) { 1370 (void) fprintf(stderr, 1371 gettext("\"all\" conflicts " 1372 "with specific fields " 1373 "given to -o option\n")); 1374 usage(B_FALSE); 1375 } 1376 cb.cb_columns[0] = GET_COL_NAME; 1377 cb.cb_columns[1] = GET_COL_PROPERTY; 1378 cb.cb_columns[2] = GET_COL_VALUE; 1379 cb.cb_columns[3] = GET_COL_RECVD; 1380 cb.cb_columns[4] = GET_COL_SOURCE; 1381 flags |= ZFS_ITER_RECVD_PROPS; 1382 i = ZFS_GET_NCOLS; 1383 break; 1384 default: 1385 (void) fprintf(stderr, 1386 gettext("invalid column name " 1387 "'%s'\n"), value); 1388 usage(B_FALSE); 1389 } 1390 } 1391 break; 1392 1393 case 's': 1394 cb.cb_sources = 0; 1395 while (*optarg != '\0') { 1396 static char *source_subopts[] = { 1397 "local", "default", "inherited", 1398 "received", "temporary", "none", 1399 NULL }; 1400 1401 switch (getsubopt(&optarg, source_subopts, 1402 &value)) { 1403 case 0: 1404 cb.cb_sources |= ZPROP_SRC_LOCAL; 1405 break; 1406 case 1: 1407 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1408 break; 1409 case 2: 1410 cb.cb_sources |= ZPROP_SRC_INHERITED; 1411 break; 1412 case 3: 1413 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1414 break; 1415 case 4: 1416 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1417 break; 1418 case 5: 1419 cb.cb_sources |= ZPROP_SRC_NONE; 1420 break; 1421 default: 1422 (void) fprintf(stderr, 1423 gettext("invalid source " 1424 "'%s'\n"), value); 1425 usage(B_FALSE); 1426 } 1427 } 1428 break; 1429 1430 case '?': 1431 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1432 optopt); 1433 usage(B_FALSE); 1434 } 1435 } 1436 1437 argc -= optind; 1438 argv += optind; 1439 1440 if (argc < 1) { 1441 (void) fprintf(stderr, gettext("missing property " 1442 "argument\n")); 1443 usage(B_FALSE); 1444 } 1445 1446 fields = argv[0]; 1447 1448 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1449 != 0) 1450 usage(B_FALSE); 1451 1452 argc--; 1453 argv++; 1454 1455 /* 1456 * As part of zfs_expand_proplist(), we keep track of the maximum column 1457 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1458 * need to know the maximum name length. However, the user likely did 1459 * not specify 'name' as one of the properties to fetch, so we need to 1460 * make sure we always include at least this property for 1461 * print_get_headers() to work properly. 1462 */ 1463 if (cb.cb_proplist != NULL) { 1464 fake_name.pl_prop = ZFS_PROP_NAME; 1465 fake_name.pl_width = strlen(gettext("NAME")); 1466 fake_name.pl_next = cb.cb_proplist; 1467 cb.cb_proplist = &fake_name; 1468 } 1469 1470 cb.cb_first = B_TRUE; 1471 1472 /* run for each object */ 1473 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, NULL, 1474 &cb.cb_proplist, limit, get_callback, &cb); 1475 1476 if (cb.cb_proplist == &fake_name) 1477 zprop_free_list(fake_name.pl_next); 1478 else 1479 zprop_free_list(cb.cb_proplist); 1480 1481 return (ret); 1482} 1483 1484/* 1485 * inherit [-rS] <property> <fs|vol> ... 1486 * 1487 * -r Recurse over all children 1488 * -S Revert to received value, if any 1489 * 1490 * For each dataset specified on the command line, inherit the given property 1491 * from its parent. Inheriting a property at the pool level will cause it to 1492 * use the default value. The '-r' flag will recurse over all children, and is 1493 * useful for setting a property on a hierarchy-wide basis, regardless of any 1494 * local modifications for each dataset. 1495 */ 1496 1497typedef struct inherit_cbdata { 1498 const char *cb_propname; 1499 boolean_t cb_received; 1500} inherit_cbdata_t; 1501 1502static int 1503inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1504{ 1505 inherit_cbdata_t *cb = data; 1506 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1507 1508 /* 1509 * If we're doing it recursively, then ignore properties that 1510 * are not valid for this type of dataset. 1511 */ 1512 if (prop != ZPROP_INVAL && 1513 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1514 return (0); 1515 1516 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1517} 1518 1519static int 1520inherit_cb(zfs_handle_t *zhp, void *data) 1521{ 1522 inherit_cbdata_t *cb = data; 1523 1524 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1525} 1526 1527static int 1528zfs_do_inherit(int argc, char **argv) 1529{ 1530 int c; 1531 zfs_prop_t prop; 1532 inherit_cbdata_t cb = { 0 }; 1533 char *propname; 1534 int ret; 1535 int flags = 0; 1536 boolean_t received = B_FALSE; 1537 1538 /* check options */ 1539 while ((c = getopt(argc, argv, "rS")) != -1) { 1540 switch (c) { 1541 case 'r': 1542 flags |= ZFS_ITER_RECURSE; 1543 break; 1544 case 'S': 1545 received = B_TRUE; 1546 break; 1547 case '?': 1548 default: 1549 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1550 optopt); 1551 usage(B_FALSE); 1552 } 1553 } 1554 1555 argc -= optind; 1556 argv += optind; 1557 1558 /* check number of arguments */ 1559 if (argc < 1) { 1560 (void) fprintf(stderr, gettext("missing property argument\n")); 1561 usage(B_FALSE); 1562 } 1563 if (argc < 2) { 1564 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1565 usage(B_FALSE); 1566 } 1567 1568 propname = argv[0]; 1569 argc--; 1570 argv++; 1571 1572 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1573 if (zfs_prop_readonly(prop)) { 1574 (void) fprintf(stderr, gettext( 1575 "%s property is read-only\n"), 1576 propname); 1577 return (1); 1578 } 1579 if (!zfs_prop_inheritable(prop) && !received) { 1580 (void) fprintf(stderr, gettext("'%s' property cannot " 1581 "be inherited\n"), propname); 1582 if (prop == ZFS_PROP_QUOTA || 1583 prop == ZFS_PROP_RESERVATION || 1584 prop == ZFS_PROP_REFQUOTA || 1585 prop == ZFS_PROP_REFRESERVATION) 1586 (void) fprintf(stderr, gettext("use 'zfs set " 1587 "%s=none' to clear\n"), propname); 1588 return (1); 1589 } 1590 if (received && (prop == ZFS_PROP_VOLSIZE || 1591 prop == ZFS_PROP_VERSION)) { 1592 (void) fprintf(stderr, gettext("'%s' property cannot " 1593 "be reverted to a received value\n"), propname); 1594 return (1); 1595 } 1596 } else if (!zfs_prop_user(propname)) { 1597 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1598 propname); 1599 usage(B_FALSE); 1600 } 1601 1602 cb.cb_propname = propname; 1603 cb.cb_received = received; 1604 1605 if (flags & ZFS_ITER_RECURSE) { 1606 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1607 NULL, NULL, 0, inherit_recurse_cb, &cb); 1608 } else { 1609 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1610 NULL, NULL, 0, inherit_cb, &cb); 1611 } 1612 1613 return (ret); 1614} 1615 1616typedef struct upgrade_cbdata { 1617 uint64_t cb_numupgraded; 1618 uint64_t cb_numsamegraded; 1619 uint64_t cb_numfailed; 1620 uint64_t cb_version; 1621 boolean_t cb_newer; 1622 boolean_t cb_foundone; 1623 char cb_lastfs[ZFS_MAXNAMELEN]; 1624} upgrade_cbdata_t; 1625 1626static int 1627same_pool(zfs_handle_t *zhp, const char *name) 1628{ 1629 int len1 = strcspn(name, "/@"); 1630 const char *zhname = zfs_get_name(zhp); 1631 int len2 = strcspn(zhname, "/@"); 1632 1633 if (len1 != len2) 1634 return (B_FALSE); 1635 return (strncmp(name, zhname, len1) == 0); 1636} 1637 1638static int 1639upgrade_list_callback(zfs_handle_t *zhp, void *data) 1640{ 1641 upgrade_cbdata_t *cb = data; 1642 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1643 1644 /* list if it's old/new */ 1645 if ((!cb->cb_newer && version < ZPL_VERSION) || 1646 (cb->cb_newer && version > ZPL_VERSION)) { 1647 char *str; 1648 if (cb->cb_newer) { 1649 str = gettext("The following filesystems are " 1650 "formatted using a newer software version and\n" 1651 "cannot be accessed on the current system.\n\n"); 1652 } else { 1653 str = gettext("The following filesystems are " 1654 "out of date, and can be upgraded. After being\n" 1655 "upgraded, these filesystems (and any 'zfs send' " 1656 "streams generated from\n" 1657 "subsequent snapshots) will no longer be " 1658 "accessible by older software versions.\n\n"); 1659 } 1660 1661 if (!cb->cb_foundone) { 1662 (void) puts(str); 1663 (void) printf(gettext("VER FILESYSTEM\n")); 1664 (void) printf(gettext("--- ------------\n")); 1665 cb->cb_foundone = B_TRUE; 1666 } 1667 1668 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1669 } 1670 1671 return (0); 1672} 1673 1674static int 1675upgrade_set_callback(zfs_handle_t *zhp, void *data) 1676{ 1677 upgrade_cbdata_t *cb = data; 1678 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1679 int needed_spa_version; 1680 int spa_version; 1681 1682 if (zfs_spa_version(zhp, &spa_version) < 0) 1683 return (-1); 1684 1685 needed_spa_version = zfs_spa_version_map(cb->cb_version); 1686 1687 if (needed_spa_version < 0) 1688 return (-1); 1689 1690 if (spa_version < needed_spa_version) { 1691 /* can't upgrade */ 1692 (void) printf(gettext("%s: can not be " 1693 "upgraded; the pool version needs to first " 1694 "be upgraded\nto version %d\n\n"), 1695 zfs_get_name(zhp), needed_spa_version); 1696 cb->cb_numfailed++; 1697 return (0); 1698 } 1699 1700 /* upgrade */ 1701 if (version < cb->cb_version) { 1702 char verstr[16]; 1703 (void) snprintf(verstr, sizeof (verstr), 1704 "%llu", cb->cb_version); 1705 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 1706 /* 1707 * If they did "zfs upgrade -a", then we could 1708 * be doing ioctls to different pools. We need 1709 * to log this history once to each pool. 1710 */ 1711 verify(zpool_stage_history(g_zfs, history_str) == 0); 1712 } 1713 if (zfs_prop_set(zhp, "version", verstr) == 0) 1714 cb->cb_numupgraded++; 1715 else 1716 cb->cb_numfailed++; 1717 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 1718 } else if (version > cb->cb_version) { 1719 /* can't downgrade */ 1720 (void) printf(gettext("%s: can not be downgraded; " 1721 "it is already at version %u\n"), 1722 zfs_get_name(zhp), version); 1723 cb->cb_numfailed++; 1724 } else { 1725 cb->cb_numsamegraded++; 1726 } 1727 return (0); 1728} 1729 1730/* 1731 * zfs upgrade 1732 * zfs upgrade -v 1733 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 1734 */ 1735static int 1736zfs_do_upgrade(int argc, char **argv) 1737{ 1738 boolean_t all = B_FALSE; 1739 boolean_t showversions = B_FALSE; 1740 int ret; 1741 upgrade_cbdata_t cb = { 0 }; 1742 char c; 1743 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1744 1745 /* check options */ 1746 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 1747 switch (c) { 1748 case 'r': 1749 flags |= ZFS_ITER_RECURSE; 1750 break; 1751 case 'v': 1752 showversions = B_TRUE; 1753 break; 1754 case 'V': 1755 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 1756 optarg, &cb.cb_version) != 0) { 1757 (void) fprintf(stderr, 1758 gettext("invalid version %s\n"), optarg); 1759 usage(B_FALSE); 1760 } 1761 break; 1762 case 'a': 1763 all = B_TRUE; 1764 break; 1765 case '?': 1766 default: 1767 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1768 optopt); 1769 usage(B_FALSE); 1770 } 1771 } 1772 1773 argc -= optind; 1774 argv += optind; 1775 1776 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 1777 usage(B_FALSE); 1778 if (showversions && (flags & ZFS_ITER_RECURSE || all || 1779 cb.cb_version || argc)) 1780 usage(B_FALSE); 1781 if ((all || argc) && (showversions)) 1782 usage(B_FALSE); 1783 if (all && argc) 1784 usage(B_FALSE); 1785 1786 if (showversions) { 1787 /* Show info on available versions. */ 1788 (void) printf(gettext("The following filesystem versions are " 1789 "supported:\n\n")); 1790 (void) printf(gettext("VER DESCRIPTION\n")); 1791 (void) printf("--- -----------------------------------------" 1792 "---------------\n"); 1793 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 1794 (void) printf(gettext(" 2 Enhanced directory entries\n")); 1795 (void) printf(gettext(" 3 Case insensitive and File system " 1796 "unique identifier (FUID)\n")); 1797 (void) printf(gettext(" 4 userquota, groupquota " 1798 "properties\n")); 1799 (void) printf(gettext(" 5 System attributes\n")); 1800 (void) printf(gettext("\nFor more information on a particular " 1801 "version, including supported releases,\n")); 1802 (void) printf("see the ZFS Administration Guide.\n\n"); 1803 ret = 0; 1804 } else if (argc || all) { 1805 /* Upgrade filesystems */ 1806 if (cb.cb_version == 0) 1807 cb.cb_version = ZPL_VERSION; 1808 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 1809 NULL, NULL, 0, upgrade_set_callback, &cb); 1810 (void) printf(gettext("%llu filesystems upgraded\n"), 1811 cb.cb_numupgraded); 1812 if (cb.cb_numsamegraded) { 1813 (void) printf(gettext("%llu filesystems already at " 1814 "this version\n"), 1815 cb.cb_numsamegraded); 1816 } 1817 if (cb.cb_numfailed != 0) 1818 ret = 1; 1819 } else { 1820 /* List old-version filesytems */ 1821 boolean_t found; 1822 (void) printf(gettext("This system is currently running " 1823 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 1824 1825 flags |= ZFS_ITER_RECURSE; 1826 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 1827 NULL, NULL, 0, upgrade_list_callback, &cb); 1828 1829 found = cb.cb_foundone; 1830 cb.cb_foundone = B_FALSE; 1831 cb.cb_newer = B_TRUE; 1832 1833 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 1834 NULL, NULL, 0, upgrade_list_callback, &cb); 1835 1836 if (!cb.cb_foundone && !found) { 1837 (void) printf(gettext("All filesystems are " 1838 "formatted with the current version.\n")); 1839 } 1840 } 1841 1842 return (ret); 1843} 1844 1845#define USTYPE_USR_BIT (0) 1846#define USTYPE_GRP_BIT (1) 1847#define USTYPE_PSX_BIT (2) 1848#define USTYPE_SMB_BIT (3) 1849 1850#define USTYPE_USR (1 << USTYPE_USR_BIT) 1851#define USTYPE_GRP (1 << USTYPE_GRP_BIT) 1852 1853#define USTYPE_PSX (1 << USTYPE_PSX_BIT) 1854#define USTYPE_SMB (1 << USTYPE_SMB_BIT) 1855 1856#define USTYPE_PSX_USR (USTYPE_PSX | USTYPE_USR) 1857#define USTYPE_SMB_USR (USTYPE_SMB | USTYPE_USR) 1858#define USTYPE_PSX_GRP (USTYPE_PSX | USTYPE_GRP) 1859#define USTYPE_SMB_GRP (USTYPE_SMB | USTYPE_GRP) 1860#define USTYPE_ALL (USTYPE_PSX_USR | USTYPE_SMB_USR \ 1861 | USTYPE_PSX_GRP | USTYPE_SMB_GRP) 1862 1863 1864#define USPROP_USED_BIT (0) 1865#define USPROP_QUOTA_BIT (1) 1866 1867#define USPROP_USED (1 << USPROP_USED_BIT) 1868#define USPROP_QUOTA (1 << USPROP_QUOTA_BIT) 1869 1870typedef struct us_node { 1871 nvlist_t *usn_nvl; 1872 uu_avl_node_t usn_avlnode; 1873 uu_list_node_t usn_listnode; 1874} us_node_t; 1875 1876typedef struct us_cbdata { 1877 nvlist_t **cb_nvlp; 1878 uu_avl_pool_t *cb_avl_pool; 1879 uu_avl_t *cb_avl; 1880 boolean_t cb_numname; 1881 boolean_t cb_nicenum; 1882 boolean_t cb_sid2posix; 1883 zfs_userquota_prop_t cb_prop; 1884 zfs_sort_column_t *cb_sortcol; 1885 size_t cb_max_typelen; 1886 size_t cb_max_namelen; 1887 size_t cb_max_usedlen; 1888 size_t cb_max_quotalen; 1889} us_cbdata_t; 1890 1891typedef struct { 1892 zfs_sort_column_t *si_sortcol; 1893 boolean_t si_num_name; 1894 boolean_t si_parsable; 1895} us_sort_info_t; 1896 1897static int 1898us_compare(const void *larg, const void *rarg, void *unused) 1899{ 1900 const us_node_t *l = larg; 1901 const us_node_t *r = rarg; 1902 int rc = 0; 1903 us_sort_info_t *si = (us_sort_info_t *)unused; 1904 zfs_sort_column_t *sortcol = si->si_sortcol; 1905 boolean_t num_name = si->si_num_name; 1906 nvlist_t *lnvl = l->usn_nvl; 1907 nvlist_t *rnvl = r->usn_nvl; 1908 1909 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 1910 char *lvstr = ""; 1911 char *rvstr = ""; 1912 uint32_t lv32 = 0; 1913 uint32_t rv32 = 0; 1914 uint64_t lv64 = 0; 1915 uint64_t rv64 = 0; 1916 zfs_prop_t prop = sortcol->sc_prop; 1917 const char *propname = NULL; 1918 boolean_t reverse = sortcol->sc_reverse; 1919 1920 switch (prop) { 1921 case ZFS_PROP_TYPE: 1922 propname = "type"; 1923 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 1924 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 1925 if (rv32 != lv32) 1926 rc = (rv32 > lv32) ? 1 : -1; 1927 break; 1928 case ZFS_PROP_NAME: 1929 propname = "name"; 1930 if (num_name) { 1931 (void) nvlist_lookup_uint32(lnvl, propname, 1932 &lv32); 1933 (void) nvlist_lookup_uint32(rnvl, propname, 1934 &rv32); 1935 if (rv32 != lv32) 1936 rc = (rv32 > lv32) ? 1 : -1; 1937 } else { 1938 (void) nvlist_lookup_string(lnvl, propname, 1939 &lvstr); 1940 (void) nvlist_lookup_string(rnvl, propname, 1941 &rvstr); 1942 rc = strcmp(lvstr, rvstr); 1943 } 1944 break; 1945 1946 case ZFS_PROP_USED: 1947 case ZFS_PROP_QUOTA: 1948 if (ZFS_PROP_USED == prop) 1949 propname = "used"; 1950 else 1951 propname = "quota"; 1952 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 1953 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 1954 if (rv64 != lv64) 1955 rc = (rv64 > lv64) ? 1 : -1; 1956 } 1957 1958 if (rc) 1959 if (rc < 0) 1960 return (reverse ? 1 : -1); 1961 else 1962 return (reverse ? -1 : 1); 1963 } 1964 1965 return (rc); 1966} 1967 1968static inline const char * 1969us_type2str(unsigned field_type) 1970{ 1971 switch (field_type) { 1972 case USTYPE_PSX_USR: 1973 return ("POSIX User"); 1974 case USTYPE_PSX_GRP: 1975 return ("POSIX Group"); 1976 case USTYPE_SMB_USR: 1977 return ("SMB User"); 1978 case USTYPE_SMB_GRP: 1979 return ("SMB Group"); 1980 default: 1981 return ("Undefined"); 1982 } 1983} 1984 1985/* 1986 * zfs userspace 1987 */ 1988static int 1989userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 1990{ 1991 us_cbdata_t *cb = (us_cbdata_t *)arg; 1992 zfs_userquota_prop_t prop = cb->cb_prop; 1993 char *name = NULL; 1994 char *propname; 1995 char namebuf[32]; 1996 char sizebuf[32]; 1997 us_node_t *node; 1998 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 1999 uu_avl_t *avl = cb->cb_avl; 2000 uu_avl_index_t idx; 2001 nvlist_t *props; 2002 us_node_t *n; 2003 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2004 unsigned type; 2005 const char *typestr; 2006 size_t namelen; 2007 size_t typelen; 2008 size_t sizelen; 2009 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2010 2011 if (domain == NULL || domain[0] == '\0') { 2012 /* POSIX */ 2013 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2014 type = USTYPE_PSX_GRP; 2015 struct group *g = getgrgid(rid); 2016 if (g) 2017 name = g->gr_name; 2018 } else { 2019 type = USTYPE_PSX_USR; 2020 struct passwd *p = getpwuid(rid); 2021 if (p) 2022 name = p->pw_name; 2023 } 2024 } else { 2025 char sid[ZFS_MAXNAMELEN+32]; 2026 uid_t id; 2027 uint64_t classes; 2028#ifdef sun 2029 int err; 2030 directory_error_t e; 2031#endif 2032 2033 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2034 /* SMB */ 2035 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2036 type = USTYPE_SMB_GRP; 2037#ifdef sun 2038 err = sid_to_id(sid, B_FALSE, &id); 2039#endif 2040 } else { 2041 type = USTYPE_SMB_USR; 2042#ifdef sun 2043 err = sid_to_id(sid, B_TRUE, &id); 2044#endif 2045 } 2046 2047#ifdef sun 2048 if (err == 0) { 2049 rid = id; 2050 2051 e = directory_name_from_sid(NULL, sid, &name, &classes); 2052 if (e != NULL) { 2053 directory_error_free(e); 2054 return (NULL); 2055 } 2056 2057 if (name == NULL) 2058 name = sid; 2059 } 2060#endif 2061 } 2062 2063/* 2064 * if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) 2065 * ug = "group"; 2066 * else 2067 * ug = "user"; 2068 */ 2069 2070 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) 2071 propname = "used"; 2072 else 2073 propname = "quota"; 2074 2075 (void) snprintf(namebuf, sizeof (namebuf), "%u", rid); 2076 if (name == NULL) 2077 name = namebuf; 2078 2079 if (cb->cb_nicenum) 2080 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2081 else 2082 (void) sprintf(sizebuf, "%llu", space); 2083 2084 node = safe_malloc(sizeof (us_node_t)); 2085 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2086 2087 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { 2088 free(node); 2089 return (-1); 2090 } 2091 2092 if (nvlist_add_uint32(props, "type", type) != 0) 2093 nomem(); 2094 2095 if (cb->cb_numname) { 2096 if (nvlist_add_uint32(props, "name", rid) != 0) 2097 nomem(); 2098 namelen = strlen(namebuf); 2099 } else { 2100 if (nvlist_add_string(props, "name", name) != 0) 2101 nomem(); 2102 namelen = strlen(name); 2103 } 2104 2105 typestr = us_type2str(type); 2106 typelen = strlen(gettext(typestr)); 2107 if (typelen > cb->cb_max_typelen) 2108 cb->cb_max_typelen = typelen; 2109 2110 if (namelen > cb->cb_max_namelen) 2111 cb->cb_max_namelen = namelen; 2112 2113 sizelen = strlen(sizebuf); 2114 if (0 == strcmp(propname, "used")) { 2115 if (sizelen > cb->cb_max_usedlen) 2116 cb->cb_max_usedlen = sizelen; 2117 } else { 2118 if (sizelen > cb->cb_max_quotalen) 2119 cb->cb_max_quotalen = sizelen; 2120 } 2121 2122 node->usn_nvl = props; 2123 2124 n = uu_avl_find(avl, node, &sortinfo, &idx); 2125 if (n == NULL) 2126 uu_avl_insert(avl, node, idx); 2127 else { 2128 nvlist_free(props); 2129 free(node); 2130 node = n; 2131 props = node->usn_nvl; 2132 } 2133 2134 if (nvlist_add_uint64(props, propname, space) != 0) 2135 nomem(); 2136 2137 return (0); 2138} 2139 2140static inline boolean_t 2141usprop_check(zfs_userquota_prop_t p, unsigned types, unsigned props) 2142{ 2143 unsigned type; 2144 unsigned prop; 2145 2146 switch (p) { 2147 case ZFS_PROP_USERUSED: 2148 type = USTYPE_USR; 2149 prop = USPROP_USED; 2150 break; 2151 case ZFS_PROP_USERQUOTA: 2152 type = USTYPE_USR; 2153 prop = USPROP_QUOTA; 2154 break; 2155 case ZFS_PROP_GROUPUSED: 2156 type = USTYPE_GRP; 2157 prop = USPROP_USED; 2158 break; 2159 case ZFS_PROP_GROUPQUOTA: 2160 type = USTYPE_GRP; 2161 prop = USPROP_QUOTA; 2162 break; 2163 default: /* ALL */ 2164 return (B_TRUE); 2165 }; 2166 2167 return (type & types && prop & props); 2168} 2169 2170#define USFIELD_TYPE (1 << 0) 2171#define USFIELD_NAME (1 << 1) 2172#define USFIELD_USED (1 << 2) 2173#define USFIELD_QUOTA (1 << 3) 2174#define USFIELD_ALL (USFIELD_TYPE | USFIELD_NAME | USFIELD_USED | USFIELD_QUOTA) 2175 2176static int 2177parsefields(unsigned *fieldsp, char **names, unsigned *bits, size_t len) 2178{ 2179 char *field = optarg; 2180 char *delim; 2181 2182 do { 2183 int i; 2184 boolean_t found = B_FALSE; 2185 delim = strchr(field, ','); 2186 if (delim != NULL) 2187 *delim = '\0'; 2188 2189 for (i = 0; i < len; i++) 2190 if (0 == strcmp(field, names[i])) { 2191 found = B_TRUE; 2192 *fieldsp |= bits[i]; 2193 break; 2194 } 2195 2196 if (!found) { 2197 (void) fprintf(stderr, gettext("invalid type '%s'" 2198 "for -t option\n"), field); 2199 return (-1); 2200 } 2201 2202 field = delim + 1; 2203 } while (delim); 2204 2205 return (0); 2206} 2207 2208 2209static char *type_names[] = { "posixuser", "smbuser", "posixgroup", "smbgroup", 2210 "all" }; 2211static unsigned type_bits[] = { 2212 USTYPE_PSX_USR, 2213 USTYPE_SMB_USR, 2214 USTYPE_PSX_GRP, 2215 USTYPE_SMB_GRP, 2216 USTYPE_ALL 2217}; 2218 2219static char *us_field_names[] = { "type", "name", "used", "quota" }; 2220static unsigned us_field_bits[] = { 2221 USFIELD_TYPE, 2222 USFIELD_NAME, 2223 USFIELD_USED, 2224 USFIELD_QUOTA 2225}; 2226 2227static void 2228print_us_node(boolean_t scripted, boolean_t parseable, unsigned fields, 2229 size_t type_width, size_t name_width, size_t used_width, 2230 size_t quota_width, us_node_t *node) 2231{ 2232 nvlist_t *nvl = node->usn_nvl; 2233 nvpair_t *nvp = NULL; 2234 char valstr[ZFS_MAXNAMELEN]; 2235 boolean_t first = B_TRUE; 2236 boolean_t quota_found = B_FALSE; 2237 2238 if (fields & USFIELD_QUOTA && !nvlist_exists(nvl, "quota")) 2239 if (nvlist_add_string(nvl, "quota", "none") != 0) 2240 nomem(); 2241 2242 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2243 char *pname = nvpair_name(nvp); 2244 data_type_t type = nvpair_type(nvp); 2245 uint32_t val32 = 0; 2246 uint64_t val64 = 0; 2247 char *strval = NULL; 2248 unsigned field = 0; 2249 unsigned width = 0; 2250 int i; 2251 for (i = 0; i < 4; i++) { 2252 if (0 == strcmp(pname, us_field_names[i])) { 2253 field = us_field_bits[i]; 2254 break; 2255 } 2256 } 2257 2258 if (!(field & fields)) 2259 continue; 2260 2261 switch (type) { 2262 case DATA_TYPE_UINT32: 2263 (void) nvpair_value_uint32(nvp, &val32); 2264 break; 2265 case DATA_TYPE_UINT64: 2266 (void) nvpair_value_uint64(nvp, &val64); 2267 break; 2268 case DATA_TYPE_STRING: 2269 (void) nvpair_value_string(nvp, &strval); 2270 break; 2271 default: 2272 (void) fprintf(stderr, "Invalid data type\n"); 2273 } 2274 2275 if (!first) 2276 if (scripted) 2277 (void) printf("\t"); 2278 else 2279 (void) printf(" "); 2280 2281 switch (field) { 2282 case USFIELD_TYPE: 2283 strval = (char *)us_type2str(val32); 2284 width = type_width; 2285 break; 2286 case USFIELD_NAME: 2287 if (type == DATA_TYPE_UINT64) { 2288 (void) sprintf(valstr, "%llu", val64); 2289 strval = valstr; 2290 } 2291 width = name_width; 2292 break; 2293 case USFIELD_USED: 2294 case USFIELD_QUOTA: 2295 if (type == DATA_TYPE_UINT64) { 2296 (void) nvpair_value_uint64(nvp, &val64); 2297 if (parseable) 2298 (void) sprintf(valstr, "%llu", val64); 2299 else 2300 zfs_nicenum(val64, valstr, 2301 sizeof (valstr)); 2302 strval = valstr; 2303 } 2304 2305 if (field == USFIELD_USED) 2306 width = used_width; 2307 else { 2308 quota_found = B_FALSE; 2309 width = quota_width; 2310 } 2311 2312 break; 2313 } 2314 2315 if (field == USFIELD_QUOTA && !quota_found) 2316 (void) printf("%*s", width, strval); 2317 else { 2318 if (type == DATA_TYPE_STRING) 2319 (void) printf("%-*s", width, strval); 2320 else 2321 (void) printf("%*s", width, strval); 2322 } 2323 2324 first = B_FALSE; 2325 2326 } 2327 2328 (void) printf("\n"); 2329} 2330 2331static void 2332print_us(boolean_t scripted, boolean_t parsable, unsigned fields, 2333 unsigned type_width, unsigned name_width, unsigned used_width, 2334 unsigned quota_width, boolean_t rmnode, uu_avl_t *avl) 2335{ 2336 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2337 us_node_t *node; 2338 const char *col; 2339 int i; 2340 size_t width[4] = { type_width, name_width, used_width, quota_width }; 2341 2342 if (!scripted) { 2343 boolean_t first = B_TRUE; 2344 for (i = 0; i < 4; i++) { 2345 unsigned field = us_field_bits[i]; 2346 if (!(field & fields)) 2347 continue; 2348 2349 col = gettext(us_field_hdr[i]); 2350 if (field == USFIELD_TYPE || field == USFIELD_NAME) 2351 (void) printf(first?"%-*s":" %-*s", width[i], 2352 col); 2353 else 2354 (void) printf(first?"%*s":" %*s", width[i], 2355 col); 2356 first = B_FALSE; 2357 } 2358 (void) printf("\n"); 2359 } 2360 2361 for (node = uu_avl_first(avl); node != NULL; 2362 node = uu_avl_next(avl, node)) { 2363 print_us_node(scripted, parsable, fields, type_width, 2364 name_width, used_width, used_width, node); 2365 if (rmnode) 2366 nvlist_free(node->usn_nvl); 2367 } 2368} 2369 2370static int 2371zfs_do_userspace(int argc, char **argv) 2372{ 2373 zfs_handle_t *zhp; 2374 zfs_userquota_prop_t p; 2375 2376 uu_avl_pool_t *avl_pool; 2377 uu_avl_t *avl_tree; 2378 uu_avl_walk_t *walk; 2379 2380 char *cmd; 2381 boolean_t scripted = B_FALSE; 2382 boolean_t prtnum = B_FALSE; 2383 boolean_t parseable = B_FALSE; 2384 boolean_t sid2posix = B_FALSE; 2385 int error; 2386 int c; 2387 zfs_sort_column_t *default_sortcol = NULL; 2388 zfs_sort_column_t *sortcol = NULL; 2389 unsigned types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2390 unsigned fields = 0; 2391 unsigned props = USPROP_USED | USPROP_QUOTA; 2392 us_cbdata_t cb; 2393 us_node_t *node; 2394 boolean_t resort_avl = B_FALSE; 2395 2396 if (argc < 2) 2397 usage(B_FALSE); 2398 2399 cmd = argv[0]; 2400 if (0 == strcmp(cmd, "groupspace")) 2401 /* toggle default group types */ 2402 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2403 2404 /* check options */ 2405 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2406 switch (c) { 2407 case 'n': 2408 prtnum = B_TRUE; 2409 break; 2410 case 'H': 2411 scripted = B_TRUE; 2412 break; 2413 case 'p': 2414 parseable = B_TRUE; 2415 break; 2416 case 'o': 2417 if (parsefields(&fields, us_field_names, us_field_bits, 2418 4) != 0) 2419 return (1); 2420 break; 2421 case 's': 2422 if (zfs_add_sort_column(&sortcol, optarg, 2423 B_FALSE) != 0) { 2424 (void) fprintf(stderr, 2425 gettext("invalid property '%s'\n"), optarg); 2426 usage(B_FALSE); 2427 } 2428 break; 2429 case 'S': 2430 if (zfs_add_sort_column(&sortcol, optarg, 2431 B_TRUE) != 0) { 2432 (void) fprintf(stderr, 2433 gettext("invalid property '%s'\n"), optarg); 2434 usage(B_FALSE); 2435 } 2436 break; 2437 case 't': 2438 if (parsefields(&types, type_names, type_bits, 5)) 2439 return (1); 2440 break; 2441 case 'i': 2442 sid2posix = B_TRUE; 2443 break; 2444 case ':': 2445 (void) fprintf(stderr, gettext("missing argument for " 2446 "'%c' option\n"), optopt); 2447 usage(B_FALSE); 2448 break; 2449 case '?': 2450 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2451 optopt); 2452 usage(B_FALSE); 2453 } 2454 } 2455 2456 argc -= optind; 2457 argv += optind; 2458 2459 /* ok, now we have sorted by default colums (type,name) avl tree */ 2460 if (sortcol) { 2461 zfs_sort_column_t *sc; 2462 for (sc = sortcol; sc; sc = sc->sc_next) { 2463 if (sc->sc_prop == ZFS_PROP_QUOTA) { 2464 resort_avl = B_TRUE; 2465 break; 2466 } 2467 } 2468 } 2469 2470 if (!fields) 2471 fields = USFIELD_ALL; 2472 2473 if ((zhp = zfs_open(g_zfs, argv[argc-1], ZFS_TYPE_DATASET)) == NULL) 2474 return (1); 2475 2476 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2477 offsetof(us_node_t, usn_avlnode), 2478 us_compare, UU_DEFAULT)) == NULL) 2479 nomem(); 2480 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2481 nomem(); 2482 2483 if (sortcol && !resort_avl) 2484 cb.cb_sortcol = sortcol; 2485 else { 2486 (void) zfs_add_sort_column(&default_sortcol, "type", B_FALSE); 2487 (void) zfs_add_sort_column(&default_sortcol, "name", B_FALSE); 2488 cb.cb_sortcol = default_sortcol; 2489 } 2490 cb.cb_numname = prtnum; 2491 cb.cb_nicenum = !parseable; 2492 cb.cb_avl_pool = avl_pool; 2493 cb.cb_avl = avl_tree; 2494 cb.cb_sid2posix = sid2posix; 2495 cb.cb_max_typelen = strlen(gettext("TYPE")); 2496 cb.cb_max_namelen = strlen(gettext("NAME")); 2497 cb.cb_max_usedlen = strlen(gettext("USED")); 2498 cb.cb_max_quotalen = strlen(gettext("QUOTA")); 2499 2500 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2501 if (!usprop_check(p, types, props)) 2502 continue; 2503 2504 cb.cb_prop = p; 2505 error = zfs_userspace(zhp, p, userspace_cb, &cb); 2506 2507 if (error) 2508 break; 2509 } 2510 2511 if (resort_avl) { 2512 us_node_t *node; 2513 us_node_t *rmnode; 2514 uu_list_pool_t *listpool; 2515 uu_list_t *list; 2516 uu_avl_index_t idx = 0; 2517 uu_list_index_t idx2 = 0; 2518 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2519 offsetof(us_node_t, usn_listnode), NULL, 2520 UU_DEFAULT); 2521 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2522 2523 node = uu_avl_first(avl_tree); 2524 uu_list_node_init(node, &node->usn_listnode, listpool); 2525 while (node != NULL) { 2526 rmnode = node; 2527 node = uu_avl_next(avl_tree, node); 2528 uu_avl_remove(avl_tree, rmnode); 2529 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) { 2530 uu_list_insert(list, rmnode, idx2); 2531 } 2532 } 2533 2534 for (node = uu_list_first(list); node != NULL; 2535 node = uu_list_next(list, node)) { 2536 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2537 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == 2538 NULL) 2539 uu_avl_insert(avl_tree, node, idx); 2540 } 2541 2542 uu_list_destroy(list); 2543 } 2544 2545 /* print & free node`s nvlist memory */ 2546 print_us(scripted, parseable, fields, cb.cb_max_typelen, 2547 cb.cb_max_namelen, cb.cb_max_usedlen, 2548 cb.cb_max_quotalen, B_TRUE, cb.cb_avl); 2549 2550 if (sortcol) 2551 zfs_free_sort_columns(sortcol); 2552 zfs_free_sort_columns(default_sortcol); 2553 2554 /* 2555 * Finally, clean up the AVL tree. 2556 */ 2557 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2558 nomem(); 2559 2560 while ((node = uu_avl_walk_next(walk)) != NULL) { 2561 uu_avl_remove(cb.cb_avl, node); 2562 free(node); 2563 } 2564 2565 uu_avl_walk_end(walk); 2566 uu_avl_destroy(avl_tree); 2567 uu_avl_pool_destroy(avl_pool); 2568 2569 return (error); 2570} 2571 2572/* 2573 * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...] 2574 * [-s property [-s property]...] [-S property [-S property]...] 2575 * <dataset> ... 2576 * 2577 * -r Recurse over all children 2578 * -d Limit recursion by depth. 2579 * -H Scripted mode; elide headers and separate columns by tabs 2580 * -o Control which fields to display. 2581 * -t Control which object types to display. 2582 * -s Specify sort columns, descending order. 2583 * -S Specify sort columns, ascending order. 2584 * 2585 * When given no arguments, lists all filesystems in the system. 2586 * Otherwise, list the specified datasets, optionally recursing down them if 2587 * '-r' is specified. 2588 */ 2589typedef struct list_cbdata { 2590 boolean_t cb_first; 2591 boolean_t cb_scripted; 2592 zprop_list_t *cb_proplist; 2593} list_cbdata_t; 2594 2595/* 2596 * Given a list of columns to display, output appropriate headers for each one. 2597 */ 2598static void 2599print_header(zprop_list_t *pl) 2600{ 2601 char headerbuf[ZFS_MAXPROPLEN]; 2602 const char *header; 2603 int i; 2604 boolean_t first = B_TRUE; 2605 boolean_t right_justify; 2606 2607 for (; pl != NULL; pl = pl->pl_next) { 2608 if (!first) { 2609 (void) printf(" "); 2610 } else { 2611 first = B_FALSE; 2612 } 2613 2614 right_justify = B_FALSE; 2615 if (pl->pl_prop != ZPROP_INVAL) { 2616 header = zfs_prop_column_name(pl->pl_prop); 2617 right_justify = zfs_prop_align_right(pl->pl_prop); 2618 } else { 2619 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2620 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2621 headerbuf[i] = '\0'; 2622 header = headerbuf; 2623 } 2624 2625 if (pl->pl_next == NULL && !right_justify) 2626 (void) printf("%s", header); 2627 else if (right_justify) 2628 (void) printf("%*s", pl->pl_width, header); 2629 else 2630 (void) printf("%-*s", pl->pl_width, header); 2631 } 2632 2633 (void) printf("\n"); 2634} 2635 2636/* 2637 * Given a dataset and a list of fields, print out all the properties according 2638 * to the described layout. 2639 */ 2640static void 2641print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted) 2642{ 2643 boolean_t first = B_TRUE; 2644 char property[ZFS_MAXPROPLEN]; 2645 nvlist_t *userprops = zfs_get_user_props(zhp); 2646 nvlist_t *propval; 2647 char *propstr; 2648 boolean_t right_justify; 2649 int width; 2650 2651 for (; pl != NULL; pl = pl->pl_next) { 2652 if (!first) { 2653 if (scripted) 2654 (void) printf("\t"); 2655 else 2656 (void) printf(" "); 2657 } else { 2658 first = B_FALSE; 2659 } 2660 2661 if (pl->pl_prop != ZPROP_INVAL) { 2662 if (zfs_prop_get(zhp, pl->pl_prop, property, 2663 sizeof (property), NULL, NULL, 0, B_FALSE) != 0) 2664 propstr = "-"; 2665 else 2666 propstr = property; 2667 2668 right_justify = zfs_prop_align_right(pl->pl_prop); 2669 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2670 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2671 property, sizeof (property), B_FALSE) != 0) 2672 propstr = "-"; 2673 else 2674 propstr = property; 2675 right_justify = B_TRUE; 2676 } else { 2677 if (nvlist_lookup_nvlist(userprops, 2678 pl->pl_user_prop, &propval) != 0) 2679 propstr = "-"; 2680 else 2681 verify(nvlist_lookup_string(propval, 2682 ZPROP_VALUE, &propstr) == 0); 2683 right_justify = B_FALSE; 2684 } 2685 2686 width = pl->pl_width; 2687 2688 /* 2689 * If this is being called in scripted mode, or if this is the 2690 * last column and it is left-justified, don't include a width 2691 * format specifier. 2692 */ 2693 if (scripted || (pl->pl_next == NULL && !right_justify)) 2694 (void) printf("%s", propstr); 2695 else if (right_justify) 2696 (void) printf("%*s", width, propstr); 2697 else 2698 (void) printf("%-*s", width, propstr); 2699 } 2700 2701 (void) printf("\n"); 2702} 2703 2704/* 2705 * Generic callback function to list a dataset or snapshot. 2706 */ 2707static int 2708list_callback(zfs_handle_t *zhp, void *data) 2709{ 2710 list_cbdata_t *cbp = data; 2711 2712 if (cbp->cb_first) { 2713 if (!cbp->cb_scripted) 2714 print_header(cbp->cb_proplist); 2715 cbp->cb_first = B_FALSE; 2716 } 2717 2718 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted); 2719 2720 return (0); 2721} 2722 2723static int 2724zfs_do_list(int argc, char **argv) 2725{ 2726 int c; 2727 boolean_t scripted = B_FALSE; 2728 static char default_fields[] = 2729 "name,used,available,referenced,mountpoint"; 2730 int types = ZFS_TYPE_DATASET; 2731 boolean_t types_specified = B_FALSE; 2732 char *fields = NULL; 2733 list_cbdata_t cb = { 0 }; 2734 char *value; 2735 int limit = 0; 2736 int ret; 2737 zfs_sort_column_t *sortcol = NULL; 2738 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 2739 2740 /* check options */ 2741 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) { 2742 switch (c) { 2743 case 'o': 2744 fields = optarg; 2745 break; 2746 case 'd': 2747 limit = parse_depth(optarg, &flags); 2748 break; 2749 case 'r': 2750 flags |= ZFS_ITER_RECURSE; 2751 break; 2752 case 'H': 2753 scripted = B_TRUE; 2754 break; 2755 case 's': 2756 if (zfs_add_sort_column(&sortcol, optarg, 2757 B_FALSE) != 0) { 2758 (void) fprintf(stderr, 2759 gettext("invalid property '%s'\n"), optarg); 2760 usage(B_FALSE); 2761 } 2762 break; 2763 case 'S': 2764 if (zfs_add_sort_column(&sortcol, optarg, 2765 B_TRUE) != 0) { 2766 (void) fprintf(stderr, 2767 gettext("invalid property '%s'\n"), optarg); 2768 usage(B_FALSE); 2769 } 2770 break; 2771 case 't': 2772 types = 0; 2773 types_specified = B_TRUE; 2774 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 2775 while (*optarg != '\0') { 2776 static char *type_subopts[] = { "filesystem", 2777 "volume", "snapshot", "all", NULL }; 2778 2779 switch (getsubopt(&optarg, type_subopts, 2780 &value)) { 2781 case 0: 2782 types |= ZFS_TYPE_FILESYSTEM; 2783 break; 2784 case 1: 2785 types |= ZFS_TYPE_VOLUME; 2786 break; 2787 case 2: 2788 types |= ZFS_TYPE_SNAPSHOT; 2789 break; 2790 case 3: 2791 types = ZFS_TYPE_DATASET; 2792 break; 2793 2794 default: 2795 (void) fprintf(stderr, 2796 gettext("invalid type '%s'\n"), 2797 value); 2798 usage(B_FALSE); 2799 } 2800 } 2801 break; 2802 case ':': 2803 (void) fprintf(stderr, gettext("missing argument for " 2804 "'%c' option\n"), optopt); 2805 usage(B_FALSE); 2806 break; 2807 case '?': 2808 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2809 optopt); 2810 usage(B_FALSE); 2811 } 2812 } 2813 2814 argc -= optind; 2815 argv += optind; 2816 2817 if (fields == NULL) 2818 fields = default_fields; 2819 2820 /* 2821 * If "-o space" and no types were specified, don't display snapshots. 2822 */ 2823 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 2824 types &= ~ZFS_TYPE_SNAPSHOT; 2825 2826 /* 2827 * If the user specifies '-o all', the zprop_get_list() doesn't 2828 * normally include the name of the dataset. For 'zfs list', we always 2829 * want this property to be first. 2830 */ 2831 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 2832 != 0) 2833 usage(B_FALSE); 2834 2835 cb.cb_scripted = scripted; 2836 cb.cb_first = B_TRUE; 2837 2838 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 2839 limit, list_callback, &cb); 2840 2841 zprop_free_list(cb.cb_proplist); 2842 zfs_free_sort_columns(sortcol); 2843 2844 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 2845 (void) printf(gettext("no datasets available\n")); 2846 2847 return (ret); 2848} 2849 2850/* 2851 * zfs rename <fs | snap | vol> <fs | snap | vol> 2852 * zfs rename -p <fs | vol> <fs | vol> 2853 * zfs rename -r <snap> <snap> 2854 * 2855 * Renames the given dataset to another of the same type. 2856 * 2857 * The '-p' flag creates all the non-existing ancestors of the target first. 2858 */ 2859/* ARGSUSED */ 2860static int 2861zfs_do_rename(int argc, char **argv) 2862{ 2863 zfs_handle_t *zhp; 2864 int c; 2865 int ret; 2866 boolean_t recurse = B_FALSE; 2867 boolean_t parents = B_FALSE; 2868 2869 /* check options */ 2870 while ((c = getopt(argc, argv, "pr")) != -1) { 2871 switch (c) { 2872 case 'p': 2873 parents = B_TRUE; 2874 break; 2875 case 'r': 2876 recurse = B_TRUE; 2877 break; 2878 case '?': 2879 default: 2880 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2881 optopt); 2882 usage(B_FALSE); 2883 } 2884 } 2885 2886 argc -= optind; 2887 argv += optind; 2888 2889 /* check number of arguments */ 2890 if (argc < 1) { 2891 (void) fprintf(stderr, gettext("missing source dataset " 2892 "argument\n")); 2893 usage(B_FALSE); 2894 } 2895 if (argc < 2) { 2896 (void) fprintf(stderr, gettext("missing target dataset " 2897 "argument\n")); 2898 usage(B_FALSE); 2899 } 2900 if (argc > 2) { 2901 (void) fprintf(stderr, gettext("too many arguments\n")); 2902 usage(B_FALSE); 2903 } 2904 2905 if (recurse && parents) { 2906 (void) fprintf(stderr, gettext("-p and -r options are mutually " 2907 "exclusive\n")); 2908 usage(B_FALSE); 2909 } 2910 2911 if (recurse && strchr(argv[0], '@') == 0) { 2912 (void) fprintf(stderr, gettext("source dataset for recursive " 2913 "rename must be a snapshot\n")); 2914 usage(B_FALSE); 2915 } 2916 2917 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 2918 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 2919 return (1); 2920 2921 /* If we were asked and the name looks good, try to create ancestors. */ 2922 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 2923 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 2924 zfs_close(zhp); 2925 return (1); 2926 } 2927 2928 ret = (zfs_rename(zhp, argv[1], recurse) != 0); 2929 2930 zfs_close(zhp); 2931 return (ret); 2932} 2933 2934/* 2935 * zfs promote <fs> 2936 * 2937 * Promotes the given clone fs to be the parent 2938 */ 2939/* ARGSUSED */ 2940static int 2941zfs_do_promote(int argc, char **argv) 2942{ 2943 zfs_handle_t *zhp; 2944 int ret; 2945 2946 /* check options */ 2947 if (argc > 1 && argv[1][0] == '-') { 2948 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2949 argv[1][1]); 2950 usage(B_FALSE); 2951 } 2952 2953 /* check number of arguments */ 2954 if (argc < 2) { 2955 (void) fprintf(stderr, gettext("missing clone filesystem" 2956 " argument\n")); 2957 usage(B_FALSE); 2958 } 2959 if (argc > 2) { 2960 (void) fprintf(stderr, gettext("too many arguments\n")); 2961 usage(B_FALSE); 2962 } 2963 2964 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 2965 if (zhp == NULL) 2966 return (1); 2967 2968 ret = (zfs_promote(zhp) != 0); 2969 2970 2971 zfs_close(zhp); 2972 return (ret); 2973} 2974 2975/* 2976 * zfs rollback [-rRf] <snapshot> 2977 * 2978 * -r Delete any intervening snapshots before doing rollback 2979 * -R Delete any snapshots and their clones 2980 * -f ignored for backwards compatability 2981 * 2982 * Given a filesystem, rollback to a specific snapshot, discarding any changes 2983 * since then and making it the active dataset. If more recent snapshots exist, 2984 * the command will complain unless the '-r' flag is given. 2985 */ 2986typedef struct rollback_cbdata { 2987 uint64_t cb_create; 2988 boolean_t cb_first; 2989 int cb_doclones; 2990 char *cb_target; 2991 int cb_error; 2992 boolean_t cb_recurse; 2993 boolean_t cb_dependent; 2994} rollback_cbdata_t; 2995 2996/* 2997 * Report any snapshots more recent than the one specified. Used when '-r' is 2998 * not specified. We reuse this same callback for the snapshot dependents - if 2999 * 'cb_dependent' is set, then this is a dependent and we should report it 3000 * without checking the transaction group. 3001 */ 3002static int 3003rollback_check(zfs_handle_t *zhp, void *data) 3004{ 3005 rollback_cbdata_t *cbp = data; 3006 3007 if (cbp->cb_doclones) { 3008 zfs_close(zhp); 3009 return (0); 3010 } 3011 3012 if (!cbp->cb_dependent) { 3013 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 && 3014 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3015 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3016 cbp->cb_create) { 3017 3018 if (cbp->cb_first && !cbp->cb_recurse) { 3019 (void) fprintf(stderr, gettext("cannot " 3020 "rollback to '%s': more recent snapshots " 3021 "exist\n"), 3022 cbp->cb_target); 3023 (void) fprintf(stderr, gettext("use '-r' to " 3024 "force deletion of the following " 3025 "snapshots:\n")); 3026 cbp->cb_first = 0; 3027 cbp->cb_error = 1; 3028 } 3029 3030 if (cbp->cb_recurse) { 3031 cbp->cb_dependent = B_TRUE; 3032 if (zfs_iter_dependents(zhp, B_TRUE, 3033 rollback_check, cbp) != 0) { 3034 zfs_close(zhp); 3035 return (-1); 3036 } 3037 cbp->cb_dependent = B_FALSE; 3038 } else { 3039 (void) fprintf(stderr, "%s\n", 3040 zfs_get_name(zhp)); 3041 } 3042 } 3043 } else { 3044 if (cbp->cb_first && cbp->cb_recurse) { 3045 (void) fprintf(stderr, gettext("cannot rollback to " 3046 "'%s': clones of previous snapshots exist\n"), 3047 cbp->cb_target); 3048 (void) fprintf(stderr, gettext("use '-R' to " 3049 "force deletion of the following clones and " 3050 "dependents:\n")); 3051 cbp->cb_first = 0; 3052 cbp->cb_error = 1; 3053 } 3054 3055 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3056 } 3057 3058 zfs_close(zhp); 3059 return (0); 3060} 3061 3062static int 3063zfs_do_rollback(int argc, char **argv) 3064{ 3065 int ret; 3066 int c; 3067 boolean_t force = B_FALSE; 3068 rollback_cbdata_t cb = { 0 }; 3069 zfs_handle_t *zhp, *snap; 3070 char parentname[ZFS_MAXNAMELEN]; 3071 char *delim; 3072 3073 /* check options */ 3074 while ((c = getopt(argc, argv, "rRf")) != -1) { 3075 switch (c) { 3076 case 'r': 3077 cb.cb_recurse = 1; 3078 break; 3079 case 'R': 3080 cb.cb_recurse = 1; 3081 cb.cb_doclones = 1; 3082 break; 3083 case 'f': 3084 force = B_TRUE; 3085 break; 3086 case '?': 3087 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3088 optopt); 3089 usage(B_FALSE); 3090 } 3091 } 3092 3093 argc -= optind; 3094 argv += optind; 3095 3096 /* check number of arguments */ 3097 if (argc < 1) { 3098 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3099 usage(B_FALSE); 3100 } 3101 if (argc > 1) { 3102 (void) fprintf(stderr, gettext("too many arguments\n")); 3103 usage(B_FALSE); 3104 } 3105 3106 /* open the snapshot */ 3107 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3108 return (1); 3109 3110 /* open the parent dataset */ 3111 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3112 verify((delim = strrchr(parentname, '@')) != NULL); 3113 *delim = '\0'; 3114 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3115 zfs_close(snap); 3116 return (1); 3117 } 3118 3119 /* 3120 * Check for more recent snapshots and/or clones based on the presence 3121 * of '-r' and '-R'. 3122 */ 3123 cb.cb_target = argv[0]; 3124 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3125 cb.cb_first = B_TRUE; 3126 cb.cb_error = 0; 3127 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0) 3128 goto out; 3129 3130 if ((ret = cb.cb_error) != 0) 3131 goto out; 3132 3133 /* 3134 * Rollback parent to the given snapshot. 3135 */ 3136 ret = zfs_rollback(zhp, snap, force); 3137 3138out: 3139 zfs_close(snap); 3140 zfs_close(zhp); 3141 3142 if (ret == 0) 3143 return (0); 3144 else 3145 return (1); 3146} 3147 3148/* 3149 * zfs set property=value { fs | snap | vol } ... 3150 * 3151 * Sets the given property for all datasets specified on the command line. 3152 */ 3153typedef struct set_cbdata { 3154 char *cb_propname; 3155 char *cb_value; 3156} set_cbdata_t; 3157 3158static int 3159set_callback(zfs_handle_t *zhp, void *data) 3160{ 3161 set_cbdata_t *cbp = data; 3162 3163 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3164 switch (libzfs_errno(g_zfs)) { 3165 case EZFS_MOUNTFAILED: 3166 (void) fprintf(stderr, gettext("property may be set " 3167 "but unable to remount filesystem\n")); 3168 break; 3169 case EZFS_SHARENFSFAILED: 3170 (void) fprintf(stderr, gettext("property may be set " 3171 "but unable to reshare filesystem\n")); 3172 break; 3173 } 3174 return (1); 3175 } 3176 return (0); 3177} 3178 3179static int 3180zfs_do_set(int argc, char **argv) 3181{ 3182 set_cbdata_t cb; 3183 int ret; 3184 3185 /* check for options */ 3186 if (argc > 1 && argv[1][0] == '-') { 3187 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3188 argv[1][1]); 3189 usage(B_FALSE); 3190 } 3191 3192 /* check number of arguments */ 3193 if (argc < 2) { 3194 (void) fprintf(stderr, gettext("missing property=value " 3195 "argument\n")); 3196 usage(B_FALSE); 3197 } 3198 if (argc < 3) { 3199 (void) fprintf(stderr, gettext("missing dataset name\n")); 3200 usage(B_FALSE); 3201 } 3202 3203 /* validate property=value argument */ 3204 cb.cb_propname = argv[1]; 3205 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3206 (cb.cb_value[1] == '\0')) { 3207 (void) fprintf(stderr, gettext("missing value in " 3208 "property=value argument\n")); 3209 usage(B_FALSE); 3210 } 3211 3212 *cb.cb_value = '\0'; 3213 cb.cb_value++; 3214 3215 if (*cb.cb_propname == '\0') { 3216 (void) fprintf(stderr, 3217 gettext("missing property in property=value argument\n")); 3218 usage(B_FALSE); 3219 } 3220 3221 ret = zfs_for_each(argc - 2, argv + 2, 0, 3222 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3223 3224 return (ret); 3225} 3226 3227/* 3228 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3229 * 3230 * Creates a snapshot with the given name. While functionally equivalent to 3231 * 'zfs create', it is a separate command to differentiate intent. 3232 */ 3233static int 3234zfs_do_snapshot(int argc, char **argv) 3235{ 3236 boolean_t recursive = B_FALSE; 3237 int ret; 3238 char c; 3239 nvlist_t *props; 3240 3241 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3242 nomem(); 3243 3244 /* check options */ 3245 while ((c = getopt(argc, argv, "ro:")) != -1) { 3246 switch (c) { 3247 case 'o': 3248 if (parseprop(props)) 3249 return (1); 3250 break; 3251 case 'r': 3252 recursive = B_TRUE; 3253 break; 3254 case '?': 3255 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3256 optopt); 3257 goto usage; 3258 } 3259 } 3260 3261 argc -= optind; 3262 argv += optind; 3263 3264 /* check number of arguments */ 3265 if (argc < 1) { 3266 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3267 goto usage; 3268 } 3269 if (argc > 1) { 3270 (void) fprintf(stderr, gettext("too many arguments\n")); 3271 goto usage; 3272 } 3273 3274 ret = zfs_snapshot(g_zfs, argv[0], recursive, props); 3275 nvlist_free(props); 3276 if (ret && recursive) 3277 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3278 return (ret != 0); 3279 3280usage: 3281 nvlist_free(props); 3282 usage(B_FALSE); 3283 return (-1); 3284} 3285 3286/* 3287 * zfs send [-vDp] -R [-i|-I <@snap>] <fs@snap> 3288 * zfs send [-vDp] [-i|-I <@snap>] <fs@snap> 3289 * 3290 * Send a backup stream to stdout. 3291 */ 3292static int 3293zfs_do_send(int argc, char **argv) 3294{ 3295 char *fromname = NULL; 3296 char *toname = NULL; 3297 char *cp; 3298 zfs_handle_t *zhp; 3299 sendflags_t flags = { 0 }; 3300 int c, err; 3301 nvlist_t *dbgnv; 3302 boolean_t extraverbose = B_FALSE; 3303 3304 /* check options */ 3305 while ((c = getopt(argc, argv, ":i:I:RDpv")) != -1) { 3306 switch (c) { 3307 case 'i': 3308 if (fromname) 3309 usage(B_FALSE); 3310 fromname = optarg; 3311 break; 3312 case 'I': 3313 if (fromname) 3314 usage(B_FALSE); 3315 fromname = optarg; 3316 flags.doall = B_TRUE; 3317 break; 3318 case 'R': 3319 flags.replicate = B_TRUE; 3320 break; 3321 case 'p': 3322 flags.props = B_TRUE; 3323 break; 3324 case 'v': 3325 if (flags.verbose) 3326 extraverbose = B_TRUE; 3327 flags.verbose = B_TRUE; 3328 break; 3329 case 'D': 3330 flags.dedup = B_TRUE; 3331 break; 3332 case ':': 3333 (void) fprintf(stderr, gettext("missing argument for " 3334 "'%c' option\n"), optopt); 3335 usage(B_FALSE); 3336 break; 3337 case '?': 3338 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3339 optopt); 3340 usage(B_FALSE); 3341 } 3342 } 3343 3344 argc -= optind; 3345 argv += optind; 3346 3347 /* check number of arguments */ 3348 if (argc < 1) { 3349 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3350 usage(B_FALSE); 3351 } 3352 if (argc > 1) { 3353 (void) fprintf(stderr, gettext("too many arguments\n")); 3354 usage(B_FALSE); 3355 } 3356 3357 if (isatty(STDOUT_FILENO)) { 3358 (void) fprintf(stderr, 3359 gettext("Error: Stream can not be written to a terminal.\n" 3360 "You must redirect standard output.\n")); 3361 return (1); 3362 } 3363 3364 cp = strchr(argv[0], '@'); 3365 if (cp == NULL) { 3366 (void) fprintf(stderr, 3367 gettext("argument must be a snapshot\n")); 3368 usage(B_FALSE); 3369 } 3370 *cp = '\0'; 3371 toname = cp + 1; 3372 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3373 if (zhp == NULL) 3374 return (1); 3375 3376 /* 3377 * If they specified the full path to the snapshot, chop off 3378 * everything except the short name of the snapshot, but special 3379 * case if they specify the origin. 3380 */ 3381 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3382 char origin[ZFS_MAXNAMELEN]; 3383 zprop_source_t src; 3384 3385 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3386 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3387 3388 if (strcmp(origin, fromname) == 0) { 3389 fromname = NULL; 3390 flags.fromorigin = B_TRUE; 3391 } else { 3392 *cp = '\0'; 3393 if (cp != fromname && strcmp(argv[0], fromname)) { 3394 (void) fprintf(stderr, 3395 gettext("incremental source must be " 3396 "in same filesystem\n")); 3397 usage(B_FALSE); 3398 } 3399 fromname = cp + 1; 3400 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3401 (void) fprintf(stderr, 3402 gettext("invalid incremental source\n")); 3403 usage(B_FALSE); 3404 } 3405 } 3406 } 3407 3408 if (flags.replicate && fromname == NULL) 3409 flags.doall = B_TRUE; 3410 3411 err = zfs_send(zhp, fromname, toname, flags, STDOUT_FILENO, NULL, 0, 3412 extraverbose ? &dbgnv : NULL); 3413 3414 if (extraverbose) { 3415 /* 3416 * dump_nvlist prints to stdout, but that's been 3417 * redirected to a file. Make it print to stderr 3418 * instead. 3419 */ 3420 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3421 dump_nvlist(dbgnv, 0); 3422 nvlist_free(dbgnv); 3423 } 3424 zfs_close(zhp); 3425 3426 return (err != 0); 3427} 3428 3429/* 3430 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3431 * 3432 * Restore a backup stream from stdin. 3433 */ 3434static int 3435zfs_do_receive(int argc, char **argv) 3436{ 3437 int c, err; 3438 recvflags_t flags = { 0 }; 3439 3440 /* check options */ 3441 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3442 switch (c) { 3443 case 'd': 3444 flags.isprefix = B_TRUE; 3445 break; 3446 case 'e': 3447 flags.isprefix = B_TRUE; 3448 flags.istail = B_TRUE; 3449 break; 3450 case 'n': 3451 flags.dryrun = B_TRUE; 3452 break; 3453 case 'u': 3454 flags.nomount = B_TRUE; 3455 break; 3456 case 'v': 3457 flags.verbose = B_TRUE; 3458 break; 3459 case 'F': 3460 flags.force = B_TRUE; 3461 break; 3462 case ':': 3463 (void) fprintf(stderr, gettext("missing argument for " 3464 "'%c' option\n"), optopt); 3465 usage(B_FALSE); 3466 break; 3467 case '?': 3468 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3469 optopt); 3470 usage(B_FALSE); 3471 } 3472 } 3473 3474 argc -= optind; 3475 argv += optind; 3476 3477 /* check number of arguments */ 3478 if (argc < 1) { 3479 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3480 usage(B_FALSE); 3481 } 3482 if (argc > 1) { 3483 (void) fprintf(stderr, gettext("too many arguments\n")); 3484 usage(B_FALSE); 3485 } 3486 3487 if (isatty(STDIN_FILENO)) { 3488 (void) fprintf(stderr, 3489 gettext("Error: Backup stream can not be read " 3490 "from a terminal.\n" 3491 "You must redirect standard input.\n")); 3492 return (1); 3493 } 3494 3495 err = zfs_receive(g_zfs, argv[0], flags, STDIN_FILENO, NULL); 3496 3497 return (err != 0); 3498} 3499 3500/* 3501 * allow/unallow stuff 3502 */ 3503/* copied from zfs/sys/dsl_deleg.h */ 3504#define ZFS_DELEG_PERM_CREATE "create" 3505#define ZFS_DELEG_PERM_DESTROY "destroy" 3506#define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3507#define ZFS_DELEG_PERM_ROLLBACK "rollback" 3508#define ZFS_DELEG_PERM_CLONE "clone" 3509#define ZFS_DELEG_PERM_PROMOTE "promote" 3510#define ZFS_DELEG_PERM_RENAME "rename" 3511#define ZFS_DELEG_PERM_MOUNT "mount" 3512#define ZFS_DELEG_PERM_SHARE "share" 3513#define ZFS_DELEG_PERM_SEND "send" 3514#define ZFS_DELEG_PERM_RECEIVE "receive" 3515#define ZFS_DELEG_PERM_ALLOW "allow" 3516#define ZFS_DELEG_PERM_USERPROP "userprop" 3517#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3518#define ZFS_DELEG_PERM_USERQUOTA "userquota" 3519#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3520#define ZFS_DELEG_PERM_USERUSED "userused" 3521#define ZFS_DELEG_PERM_GROUPUSED "groupused" 3522#define ZFS_DELEG_PERM_HOLD "hold" 3523#define ZFS_DELEG_PERM_RELEASE "release" 3524#define ZFS_DELEG_PERM_DIFF "diff" 3525 3526#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3527 3528static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3529 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3530 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3531 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3532 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3533 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3534 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3535 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3536 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3537 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3538 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3539 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3540 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3541 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3542 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3543 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3544 3545 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3546 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3547 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3548 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3549 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3550 { NULL, ZFS_DELEG_NOTE_NONE } 3551}; 3552 3553/* permission structure */ 3554typedef struct deleg_perm { 3555 zfs_deleg_who_type_t dp_who_type; 3556 const char *dp_name; 3557 boolean_t dp_local; 3558 boolean_t dp_descend; 3559} deleg_perm_t; 3560 3561/* */ 3562typedef struct deleg_perm_node { 3563 deleg_perm_t dpn_perm; 3564 3565 uu_avl_node_t dpn_avl_node; 3566} deleg_perm_node_t; 3567 3568typedef struct fs_perm fs_perm_t; 3569 3570/* permissions set */ 3571typedef struct who_perm { 3572 zfs_deleg_who_type_t who_type; 3573 const char *who_name; /* id */ 3574 char who_ug_name[256]; /* user/group name */ 3575 fs_perm_t *who_fsperm; /* uplink */ 3576 3577 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3578} who_perm_t; 3579 3580/* */ 3581typedef struct who_perm_node { 3582 who_perm_t who_perm; 3583 uu_avl_node_t who_avl_node; 3584} who_perm_node_t; 3585 3586typedef struct fs_perm_set fs_perm_set_t; 3587/* fs permissions */ 3588struct fs_perm { 3589 const char *fsp_name; 3590 3591 uu_avl_t *fsp_sc_avl; /* sets,create */ 3592 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 3593 3594 fs_perm_set_t *fsp_set; /* uplink */ 3595}; 3596 3597/* */ 3598typedef struct fs_perm_node { 3599 fs_perm_t fspn_fsperm; 3600 uu_avl_t *fspn_avl; 3601 3602 uu_list_node_t fspn_list_node; 3603} fs_perm_node_t; 3604 3605/* top level structure */ 3606struct fs_perm_set { 3607 uu_list_pool_t *fsps_list_pool; 3608 uu_list_t *fsps_list; /* list of fs_perms */ 3609 3610 uu_avl_pool_t *fsps_named_set_avl_pool; 3611 uu_avl_pool_t *fsps_who_perm_avl_pool; 3612 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 3613}; 3614 3615static inline const char * 3616deleg_perm_type(zfs_deleg_note_t note) 3617{ 3618 /* subcommands */ 3619 switch (note) { 3620 /* SUBCOMMANDS */ 3621 /* OTHER */ 3622 case ZFS_DELEG_NOTE_GROUPQUOTA: 3623 case ZFS_DELEG_NOTE_GROUPUSED: 3624 case ZFS_DELEG_NOTE_USERPROP: 3625 case ZFS_DELEG_NOTE_USERQUOTA: 3626 case ZFS_DELEG_NOTE_USERUSED: 3627 /* other */ 3628 return (gettext("other")); 3629 default: 3630 return (gettext("subcommand")); 3631 } 3632} 3633 3634static int inline 3635who_type2weight(zfs_deleg_who_type_t who_type) 3636{ 3637 int res; 3638 switch (who_type) { 3639 case ZFS_DELEG_NAMED_SET_SETS: 3640 case ZFS_DELEG_NAMED_SET: 3641 res = 0; 3642 break; 3643 case ZFS_DELEG_CREATE_SETS: 3644 case ZFS_DELEG_CREATE: 3645 res = 1; 3646 break; 3647 case ZFS_DELEG_USER_SETS: 3648 case ZFS_DELEG_USER: 3649 res = 2; 3650 break; 3651 case ZFS_DELEG_GROUP_SETS: 3652 case ZFS_DELEG_GROUP: 3653 res = 3; 3654 break; 3655 case ZFS_DELEG_EVERYONE_SETS: 3656 case ZFS_DELEG_EVERYONE: 3657 res = 4; 3658 break; 3659 default: 3660 res = -1; 3661 } 3662 3663 return (res); 3664} 3665 3666/* ARGSUSED */ 3667static int 3668who_perm_compare(const void *larg, const void *rarg, void *unused) 3669{ 3670 const who_perm_node_t *l = larg; 3671 const who_perm_node_t *r = rarg; 3672 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 3673 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 3674 int lweight = who_type2weight(ltype); 3675 int rweight = who_type2weight(rtype); 3676 int res = lweight - rweight; 3677 if (res == 0) 3678 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 3679 ZFS_MAX_DELEG_NAME-1); 3680 3681 if (res == 0) 3682 return (0); 3683 if (res > 0) 3684 return (1); 3685 else 3686 return (-1); 3687} 3688 3689/* ARGSUSED */ 3690static int 3691deleg_perm_compare(const void *larg, const void *rarg, void *unused) 3692{ 3693 const deleg_perm_node_t *l = larg; 3694 const deleg_perm_node_t *r = rarg; 3695 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 3696 ZFS_MAX_DELEG_NAME-1); 3697 3698 if (res == 0) 3699 return (0); 3700 3701 if (res > 0) 3702 return (1); 3703 else 3704 return (-1); 3705} 3706 3707static inline void 3708fs_perm_set_init(fs_perm_set_t *fspset) 3709{ 3710 bzero(fspset, sizeof (fs_perm_set_t)); 3711 3712 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 3713 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 3714 NULL, UU_DEFAULT)) == NULL) 3715 nomem(); 3716 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 3717 UU_DEFAULT)) == NULL) 3718 nomem(); 3719 3720 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 3721 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 3722 who_perm_node_t, who_avl_node), who_perm_compare, 3723 UU_DEFAULT)) == NULL) 3724 nomem(); 3725 3726 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 3727 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 3728 who_perm_node_t, who_avl_node), who_perm_compare, 3729 UU_DEFAULT)) == NULL) 3730 nomem(); 3731 3732 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 3733 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 3734 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 3735 == NULL) 3736 nomem(); 3737} 3738 3739static inline void fs_perm_fini(fs_perm_t *); 3740static inline void who_perm_fini(who_perm_t *); 3741 3742static inline void 3743fs_perm_set_fini(fs_perm_set_t *fspset) 3744{ 3745 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 3746 3747 while (node != NULL) { 3748 fs_perm_node_t *next_node = 3749 uu_list_next(fspset->fsps_list, node); 3750 fs_perm_t *fsperm = &node->fspn_fsperm; 3751 fs_perm_fini(fsperm); 3752 uu_list_remove(fspset->fsps_list, node); 3753 free(node); 3754 node = next_node; 3755 } 3756 3757 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 3758 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 3759 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 3760} 3761 3762static inline void 3763deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 3764 const char *name) 3765{ 3766 deleg_perm->dp_who_type = type; 3767 deleg_perm->dp_name = name; 3768} 3769 3770static inline void 3771who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 3772 zfs_deleg_who_type_t type, const char *name) 3773{ 3774 uu_avl_pool_t *pool; 3775 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 3776 3777 bzero(who_perm, sizeof (who_perm_t)); 3778 3779 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 3780 UU_DEFAULT)) == NULL) 3781 nomem(); 3782 3783 who_perm->who_type = type; 3784 who_perm->who_name = name; 3785 who_perm->who_fsperm = fsperm; 3786} 3787 3788static inline void 3789who_perm_fini(who_perm_t *who_perm) 3790{ 3791 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 3792 3793 while (node != NULL) { 3794 deleg_perm_node_t *next_node = 3795 uu_avl_next(who_perm->who_deleg_perm_avl, node); 3796 3797 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 3798 free(node); 3799 node = next_node; 3800 } 3801 3802 uu_avl_destroy(who_perm->who_deleg_perm_avl); 3803} 3804 3805static inline void 3806fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 3807{ 3808 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 3809 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 3810 3811 bzero(fsperm, sizeof (fs_perm_t)); 3812 3813 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 3814 == NULL) 3815 nomem(); 3816 3817 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 3818 == NULL) 3819 nomem(); 3820 3821 fsperm->fsp_set = fspset; 3822 fsperm->fsp_name = fsname; 3823} 3824 3825static inline void 3826fs_perm_fini(fs_perm_t *fsperm) 3827{ 3828 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 3829 while (node != NULL) { 3830 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 3831 node); 3832 who_perm_t *who_perm = &node->who_perm; 3833 who_perm_fini(who_perm); 3834 uu_avl_remove(fsperm->fsp_sc_avl, node); 3835 free(node); 3836 node = next_node; 3837 } 3838 3839 node = uu_avl_first(fsperm->fsp_uge_avl); 3840 while (node != NULL) { 3841 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 3842 node); 3843 who_perm_t *who_perm = &node->who_perm; 3844 who_perm_fini(who_perm); 3845 uu_avl_remove(fsperm->fsp_uge_avl, node); 3846 free(node); 3847 node = next_node; 3848 } 3849 3850 uu_avl_destroy(fsperm->fsp_sc_avl); 3851 uu_avl_destroy(fsperm->fsp_uge_avl); 3852} 3853 3854static void inline 3855set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 3856 zfs_deleg_who_type_t who_type, const char *name, char locality) 3857{ 3858 uu_avl_index_t idx = 0; 3859 3860 deleg_perm_node_t *found_node = NULL; 3861 deleg_perm_t *deleg_perm = &node->dpn_perm; 3862 3863 deleg_perm_init(deleg_perm, who_type, name); 3864 3865 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 3866 == NULL) 3867 uu_avl_insert(avl, node, idx); 3868 else { 3869 node = found_node; 3870 deleg_perm = &node->dpn_perm; 3871 } 3872 3873 3874 switch (locality) { 3875 case ZFS_DELEG_LOCAL: 3876 deleg_perm->dp_local = B_TRUE; 3877 break; 3878 case ZFS_DELEG_DESCENDENT: 3879 deleg_perm->dp_descend = B_TRUE; 3880 break; 3881 case ZFS_DELEG_NA: 3882 break; 3883 default: 3884 assert(B_FALSE); /* invalid locality */ 3885 } 3886} 3887 3888static inline int 3889parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 3890{ 3891 nvpair_t *nvp = NULL; 3892 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 3893 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 3894 zfs_deleg_who_type_t who_type = who_perm->who_type; 3895 3896 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 3897 const char *name = nvpair_name(nvp); 3898 data_type_t type = nvpair_type(nvp); 3899 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 3900 deleg_perm_node_t *node = 3901 safe_malloc(sizeof (deleg_perm_node_t)); 3902 3903 assert(type == DATA_TYPE_BOOLEAN); 3904 3905 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 3906 set_deleg_perm_node(avl, node, who_type, name, locality); 3907 } 3908 3909 return (0); 3910} 3911 3912static inline int 3913parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 3914{ 3915 nvpair_t *nvp = NULL; 3916 fs_perm_set_t *fspset = fsperm->fsp_set; 3917 3918 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 3919 nvlist_t *nvl2 = NULL; 3920 const char *name = nvpair_name(nvp); 3921 uu_avl_t *avl = NULL; 3922 uu_avl_pool_t *avl_pool; 3923 zfs_deleg_who_type_t perm_type = name[0]; 3924 char perm_locality = name[1]; 3925 const char *perm_name = name + 3; 3926 boolean_t is_set = B_TRUE; 3927 who_perm_t *who_perm = NULL; 3928 3929 assert('$' == name[2]); 3930 3931 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 3932 return (-1); 3933 3934 switch (perm_type) { 3935 case ZFS_DELEG_CREATE: 3936 case ZFS_DELEG_CREATE_SETS: 3937 case ZFS_DELEG_NAMED_SET: 3938 case ZFS_DELEG_NAMED_SET_SETS: 3939 avl_pool = fspset->fsps_named_set_avl_pool; 3940 avl = fsperm->fsp_sc_avl; 3941 break; 3942 case ZFS_DELEG_USER: 3943 case ZFS_DELEG_USER_SETS: 3944 case ZFS_DELEG_GROUP: 3945 case ZFS_DELEG_GROUP_SETS: 3946 case ZFS_DELEG_EVERYONE: 3947 case ZFS_DELEG_EVERYONE_SETS: 3948 avl_pool = fspset->fsps_who_perm_avl_pool; 3949 avl = fsperm->fsp_uge_avl; 3950 break; 3951 } 3952 3953 if (is_set) { 3954 who_perm_node_t *found_node = NULL; 3955 who_perm_node_t *node = safe_malloc( 3956 sizeof (who_perm_node_t)); 3957 who_perm = &node->who_perm; 3958 uu_avl_index_t idx = 0; 3959 3960 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 3961 who_perm_init(who_perm, fsperm, perm_type, perm_name); 3962 3963 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 3964 == NULL) { 3965 if (avl == fsperm->fsp_uge_avl) { 3966 uid_t rid = 0; 3967 struct passwd *p = NULL; 3968 struct group *g = NULL; 3969 const char *nice_name = NULL; 3970 3971 switch (perm_type) { 3972 case ZFS_DELEG_USER_SETS: 3973 case ZFS_DELEG_USER: 3974 rid = atoi(perm_name); 3975 p = getpwuid(rid); 3976 if (p) 3977 nice_name = p->pw_name; 3978 break; 3979 case ZFS_DELEG_GROUP_SETS: 3980 case ZFS_DELEG_GROUP: 3981 rid = atoi(perm_name); 3982 g = getgrgid(rid); 3983 if (g) 3984 nice_name = g->gr_name; 3985 break; 3986 } 3987 3988 if (nice_name != NULL) 3989 (void) strlcpy( 3990 node->who_perm.who_ug_name, 3991 nice_name, 256); 3992 } 3993 3994 uu_avl_insert(avl, node, idx); 3995 } else { 3996 node = found_node; 3997 who_perm = &node->who_perm; 3998 } 3999 } 4000 4001 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4002 } 4003 4004 return (0); 4005} 4006 4007static inline int 4008parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4009{ 4010 nvpair_t *nvp = NULL; 4011 uu_avl_index_t idx = 0; 4012 4013 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4014 nvlist_t *nvl2 = NULL; 4015 const char *fsname = nvpair_name(nvp); 4016 data_type_t type = nvpair_type(nvp); 4017 fs_perm_t *fsperm = NULL; 4018 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4019 if (node == NULL) 4020 nomem(); 4021 4022 fsperm = &node->fspn_fsperm; 4023 4024 assert(DATA_TYPE_NVLIST == type); 4025 4026 uu_list_node_init(node, &node->fspn_list_node, 4027 fspset->fsps_list_pool); 4028 4029 idx = uu_list_numnodes(fspset->fsps_list); 4030 fs_perm_init(fsperm, fspset, fsname); 4031 4032 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4033 return (-1); 4034 4035 (void) parse_fs_perm(fsperm, nvl2); 4036 4037 uu_list_insert(fspset->fsps_list, node, idx); 4038 } 4039 4040 return (0); 4041} 4042 4043static inline const char * 4044deleg_perm_comment(zfs_deleg_note_t note) 4045{ 4046 const char *str = ""; 4047 4048 /* subcommands */ 4049 switch (note) { 4050 /* SUBCOMMANDS */ 4051 case ZFS_DELEG_NOTE_ALLOW: 4052 str = gettext("Must also have the permission that is being" 4053 "\n\t\t\t\tallowed"); 4054 break; 4055 case ZFS_DELEG_NOTE_CLONE: 4056 str = gettext("Must also have the 'create' ability and 'mount'" 4057 "\n\t\t\t\tability in the origin file system"); 4058 break; 4059 case ZFS_DELEG_NOTE_CREATE: 4060 str = gettext("Must also have the 'mount' ability"); 4061 break; 4062 case ZFS_DELEG_NOTE_DESTROY: 4063 str = gettext("Must also have the 'mount' ability"); 4064 break; 4065 case ZFS_DELEG_NOTE_DIFF: 4066 str = gettext("Allows lookup of paths within a dataset;" 4067 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4068 "\n\t\t\t\tin order to use zfs diff"); 4069 break; 4070 case ZFS_DELEG_NOTE_HOLD: 4071 str = gettext("Allows adding a user hold to a snapshot"); 4072 break; 4073 case ZFS_DELEG_NOTE_MOUNT: 4074 str = gettext("Allows mount/umount of ZFS datasets"); 4075 break; 4076 case ZFS_DELEG_NOTE_PROMOTE: 4077 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4078 " 'promote' ability in the origin file system"); 4079 break; 4080 case ZFS_DELEG_NOTE_RECEIVE: 4081 str = gettext("Must also have the 'mount' and 'create'" 4082 " ability"); 4083 break; 4084 case ZFS_DELEG_NOTE_RELEASE: 4085 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4086 "might destroy the snapshot"); 4087 break; 4088 case ZFS_DELEG_NOTE_RENAME: 4089 str = gettext("Must also have the 'mount' and 'create'" 4090 "\n\t\t\t\tability in the new parent"); 4091 break; 4092 case ZFS_DELEG_NOTE_ROLLBACK: 4093 str = gettext(""); 4094 break; 4095 case ZFS_DELEG_NOTE_SEND: 4096 str = gettext(""); 4097 break; 4098 case ZFS_DELEG_NOTE_SHARE: 4099 str = gettext("Allows sharing file systems over NFS or SMB" 4100 "\n\t\t\t\tprotocols"); 4101 break; 4102 case ZFS_DELEG_NOTE_SNAPSHOT: 4103 str = gettext(""); 4104 break; 4105/* 4106 * case ZFS_DELEG_NOTE_VSCAN: 4107 * str = gettext(""); 4108 * break; 4109 */ 4110 /* OTHER */ 4111 case ZFS_DELEG_NOTE_GROUPQUOTA: 4112 str = gettext("Allows accessing any groupquota@... property"); 4113 break; 4114 case ZFS_DELEG_NOTE_GROUPUSED: 4115 str = gettext("Allows reading any groupused@... property"); 4116 break; 4117 case ZFS_DELEG_NOTE_USERPROP: 4118 str = gettext("Allows changing any user property"); 4119 break; 4120 case ZFS_DELEG_NOTE_USERQUOTA: 4121 str = gettext("Allows accessing any userquota@... property"); 4122 break; 4123 case ZFS_DELEG_NOTE_USERUSED: 4124 str = gettext("Allows reading any userused@... property"); 4125 break; 4126 /* other */ 4127 default: 4128 str = ""; 4129 } 4130 4131 return (str); 4132} 4133 4134struct allow_opts { 4135 boolean_t local; 4136 boolean_t descend; 4137 boolean_t user; 4138 boolean_t group; 4139 boolean_t everyone; 4140 boolean_t create; 4141 boolean_t set; 4142 boolean_t recursive; /* unallow only */ 4143 boolean_t prt_usage; 4144 4145 boolean_t prt_perms; 4146 char *who; 4147 char *perms; 4148 const char *dataset; 4149}; 4150 4151static inline int 4152prop_cmp(const void *a, const void *b) 4153{ 4154 const char *str1 = *(const char **)a; 4155 const char *str2 = *(const char **)b; 4156 return (strcmp(str1, str2)); 4157} 4158 4159static void 4160allow_usage(boolean_t un, boolean_t requested, const char *msg) 4161{ 4162 const char *opt_desc[] = { 4163 "-h", gettext("show this help message and exit"), 4164 "-l", gettext("set permission locally"), 4165 "-d", gettext("set permission for descents"), 4166 "-u", gettext("set permission for user"), 4167 "-g", gettext("set permission for group"), 4168 "-e", gettext("set permission for everyone"), 4169 "-c", gettext("set create time permission"), 4170 "-s", gettext("define permission set"), 4171 /* unallow only */ 4172 "-r", gettext("remove permissions recursively"), 4173 }; 4174 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4175 size_t allow_size = unallow_size - 2; 4176 const char *props[ZFS_NUM_PROPS]; 4177 int i; 4178 size_t count = 0; 4179 FILE *fp = requested ? stdout : stderr; 4180 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4181 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4182 4183 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4184 HELP_ALLOW)); 4185 (void) fprintf(fp, gettext("Options:\n")); 4186 for (i = 0; i < (un ? unallow_size : allow_size); i++) { 4187 const char *opt = opt_desc[i++]; 4188 const char *optdsc = opt_desc[i]; 4189 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4190 } 4191 4192 (void) fprintf(fp, gettext("\nThe following permissions are " 4193 "supported:\n\n")); 4194 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4195 gettext("NOTES")); 4196 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4197 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4198 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4199 const char *perm_type = deleg_perm_type(perm_note); 4200 const char *perm_comment = deleg_perm_comment(perm_note); 4201 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4202 } 4203 4204 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4205 zprop_desc_t *pd = &pdtbl[i]; 4206 if (pd->pd_visible != B_TRUE) 4207 continue; 4208 4209 if (pd->pd_attr == PROP_READONLY) 4210 continue; 4211 4212 props[count++] = pd->pd_name; 4213 } 4214 props[count] = NULL; 4215 4216 qsort(props, count, sizeof (char *), prop_cmp); 4217 4218 for (i = 0; i < count; i++) 4219 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4220 4221 if (msg != NULL) 4222 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4223 4224 exit(requested ? 0 : 2); 4225} 4226 4227static inline const char * 4228munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4229 char **permsp) 4230{ 4231 if (un && argc == expected_argc - 1) 4232 *permsp = NULL; 4233 else if (argc == expected_argc) 4234 *permsp = argv[argc - 2]; 4235 else 4236 allow_usage(un, B_FALSE, 4237 gettext("wrong number of parameters\n")); 4238 4239 return (argv[argc - 1]); 4240} 4241 4242static void 4243parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4244{ 4245 int uge_sum = opts->user + opts->group + opts->everyone; 4246 int csuge_sum = opts->create + opts->set + uge_sum; 4247 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4248 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4249 4250 if (uge_sum > 1) 4251 allow_usage(un, B_FALSE, 4252 gettext("-u, -g, and -e are mutually exclusive\n")); 4253 4254 if (opts->prt_usage) 4255 if (argc == 0 && all_sum == 0) 4256 allow_usage(un, B_TRUE, NULL); 4257 else 4258 usage(B_FALSE); 4259 4260 if (opts->set) { 4261 if (csuge_sum > 1) 4262 allow_usage(un, B_FALSE, 4263 gettext("invalid options combined with -s\n")); 4264 4265 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4266 if (argv[0][0] != '@') 4267 allow_usage(un, B_FALSE, 4268 gettext("invalid set name: missing '@' prefix\n")); 4269 opts->who = argv[0]; 4270 } else if (opts->create) { 4271 if (ldcsuge_sum > 1) 4272 allow_usage(un, B_FALSE, 4273 gettext("invalid options combined with -c\n")); 4274 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4275 } else if (opts->everyone) { 4276 if (csuge_sum > 1) 4277 allow_usage(un, B_FALSE, 4278 gettext("invalid options combined with -e\n")); 4279 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4280 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4281 == 0) { 4282 opts->everyone = B_TRUE; 4283 argc--; 4284 argv++; 4285 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4286 } else if (argc == 1) { 4287 opts->prt_perms = B_TRUE; 4288 opts->dataset = argv[argc-1]; 4289 } else { 4290 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4291 opts->who = argv[0]; 4292 } 4293 4294 if (!opts->local && !opts->descend) { 4295 opts->local = B_TRUE; 4296 opts->descend = B_TRUE; 4297 } 4298} 4299 4300static void 4301store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4302 const char *who, char *perms, nvlist_t *top_nvl) 4303{ 4304 int i; 4305 char ld[2] = { '\0', '\0' }; 4306 char who_buf[ZFS_MAXNAMELEN+32]; 4307 char base_type; 4308 char set_type; 4309 nvlist_t *base_nvl = NULL; 4310 nvlist_t *set_nvl = NULL; 4311 nvlist_t *nvl; 4312 4313 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4314 nomem(); 4315 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4316 nomem(); 4317 4318 switch (type) { 4319 case ZFS_DELEG_NAMED_SET_SETS: 4320 case ZFS_DELEG_NAMED_SET: 4321 set_type = ZFS_DELEG_NAMED_SET_SETS; 4322 base_type = ZFS_DELEG_NAMED_SET; 4323 ld[0] = ZFS_DELEG_NA; 4324 break; 4325 case ZFS_DELEG_CREATE_SETS: 4326 case ZFS_DELEG_CREATE: 4327 set_type = ZFS_DELEG_CREATE_SETS; 4328 base_type = ZFS_DELEG_CREATE; 4329 ld[0] = ZFS_DELEG_NA; 4330 break; 4331 case ZFS_DELEG_USER_SETS: 4332 case ZFS_DELEG_USER: 4333 set_type = ZFS_DELEG_USER_SETS; 4334 base_type = ZFS_DELEG_USER; 4335 if (local) 4336 ld[0] = ZFS_DELEG_LOCAL; 4337 if (descend) 4338 ld[1] = ZFS_DELEG_DESCENDENT; 4339 break; 4340 case ZFS_DELEG_GROUP_SETS: 4341 case ZFS_DELEG_GROUP: 4342 set_type = ZFS_DELEG_GROUP_SETS; 4343 base_type = ZFS_DELEG_GROUP; 4344 if (local) 4345 ld[0] = ZFS_DELEG_LOCAL; 4346 if (descend) 4347 ld[1] = ZFS_DELEG_DESCENDENT; 4348 break; 4349 case ZFS_DELEG_EVERYONE_SETS: 4350 case ZFS_DELEG_EVERYONE: 4351 set_type = ZFS_DELEG_EVERYONE_SETS; 4352 base_type = ZFS_DELEG_EVERYONE; 4353 if (local) 4354 ld[0] = ZFS_DELEG_LOCAL; 4355 if (descend) 4356 ld[1] = ZFS_DELEG_DESCENDENT; 4357 } 4358 4359 if (perms != NULL) { 4360 char *curr = perms; 4361 char *end = curr + strlen(perms); 4362 4363 while (curr < end) { 4364 char *delim = strchr(curr, ','); 4365 if (delim == NULL) 4366 delim = end; 4367 else 4368 *delim = '\0'; 4369 4370 if (curr[0] == '@') 4371 nvl = set_nvl; 4372 else 4373 nvl = base_nvl; 4374 4375 (void) nvlist_add_boolean(nvl, curr); 4376 if (delim != end) 4377 *delim = ','; 4378 curr = delim + 1; 4379 } 4380 4381 for (i = 0; i < 2; i++) { 4382 char locality = ld[i]; 4383 if (locality == 0) 4384 continue; 4385 4386 if (!nvlist_empty(base_nvl)) { 4387 if (who != NULL) 4388 (void) snprintf(who_buf, 4389 sizeof (who_buf), "%c%c$%s", 4390 base_type, locality, who); 4391 else 4392 (void) snprintf(who_buf, 4393 sizeof (who_buf), "%c%c$", 4394 base_type, locality); 4395 4396 (void) nvlist_add_nvlist(top_nvl, who_buf, 4397 base_nvl); 4398 } 4399 4400 4401 if (!nvlist_empty(set_nvl)) { 4402 if (who != NULL) 4403 (void) snprintf(who_buf, 4404 sizeof (who_buf), "%c%c$%s", 4405 set_type, locality, who); 4406 else 4407 (void) snprintf(who_buf, 4408 sizeof (who_buf), "%c%c$", 4409 set_type, locality); 4410 4411 (void) nvlist_add_nvlist(top_nvl, who_buf, 4412 set_nvl); 4413 } 4414 } 4415 } else { 4416 for (i = 0; i < 2; i++) { 4417 char locality = ld[i]; 4418 if (locality == 0) 4419 continue; 4420 4421 if (who != NULL) 4422 (void) snprintf(who_buf, sizeof (who_buf), 4423 "%c%c$%s", base_type, locality, who); 4424 else 4425 (void) snprintf(who_buf, sizeof (who_buf), 4426 "%c%c$", base_type, locality); 4427 (void) nvlist_add_boolean(top_nvl, who_buf); 4428 4429 if (who != NULL) 4430 (void) snprintf(who_buf, sizeof (who_buf), 4431 "%c%c$%s", set_type, locality, who); 4432 else 4433 (void) snprintf(who_buf, sizeof (who_buf), 4434 "%c%c$", set_type, locality); 4435 (void) nvlist_add_boolean(top_nvl, who_buf); 4436 } 4437 } 4438} 4439 4440static int 4441construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4442{ 4443 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4444 nomem(); 4445 4446 if (opts->set) { 4447 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4448 opts->descend, opts->who, opts->perms, *nvlp); 4449 } else if (opts->create) { 4450 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4451 opts->descend, NULL, opts->perms, *nvlp); 4452 } else if (opts->everyone) { 4453 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4454 opts->descend, NULL, opts->perms, *nvlp); 4455 } else { 4456 char *curr = opts->who; 4457 char *end = curr + strlen(curr); 4458 4459 while (curr < end) { 4460 const char *who; 4461 zfs_deleg_who_type_t who_type; 4462 char *endch; 4463 char *delim = strchr(curr, ','); 4464 char errbuf[256]; 4465 char id[64]; 4466 struct passwd *p = NULL; 4467 struct group *g = NULL; 4468 4469 uid_t rid; 4470 if (delim == NULL) 4471 delim = end; 4472 else 4473 *delim = '\0'; 4474 4475 rid = (uid_t)strtol(curr, &endch, 0); 4476 if (opts->user) { 4477 who_type = ZFS_DELEG_USER; 4478 if (*endch != '\0') 4479 p = getpwnam(curr); 4480 else 4481 p = getpwuid(rid); 4482 4483 if (p != NULL) 4484 rid = p->pw_uid; 4485 else { 4486 (void) snprintf(errbuf, 256, gettext( 4487 "invalid user %s"), curr); 4488 allow_usage(un, B_TRUE, errbuf); 4489 } 4490 } else if (opts->group) { 4491 who_type = ZFS_DELEG_GROUP; 4492 if (*endch != '\0') 4493 g = getgrnam(curr); 4494 else 4495 g = getgrgid(rid); 4496 4497 if (g != NULL) 4498 rid = g->gr_gid; 4499 else { 4500 (void) snprintf(errbuf, 256, gettext( 4501 "invalid group %s"), curr); 4502 allow_usage(un, B_TRUE, errbuf); 4503 } 4504 } else { 4505 if (*endch != '\0') { 4506 p = getpwnam(curr); 4507 } else { 4508 p = getpwuid(rid); 4509 } 4510 4511 if (p == NULL) 4512 if (*endch != '\0') { 4513 g = getgrnam(curr); 4514 } else { 4515 g = getgrgid(rid); 4516 } 4517 4518 if (p != NULL) { 4519 who_type = ZFS_DELEG_USER; 4520 rid = p->pw_uid; 4521 } else if (g != NULL) { 4522 who_type = ZFS_DELEG_GROUP; 4523 rid = g->gr_gid; 4524 } else { 4525 (void) snprintf(errbuf, 256, gettext( 4526 "invalid user/group %s"), curr); 4527 allow_usage(un, B_TRUE, errbuf); 4528 } 4529 } 4530 4531 (void) sprintf(id, "%u", rid); 4532 who = id; 4533 4534 store_allow_perm(who_type, opts->local, 4535 opts->descend, who, opts->perms, *nvlp); 4536 curr = delim + 1; 4537 } 4538 } 4539 4540 return (0); 4541} 4542 4543static void 4544print_set_creat_perms(uu_avl_t *who_avl) 4545{ 4546 const char *sc_title[] = { 4547 gettext("Permission sets:\n"), 4548 gettext("Create time permissions:\n"), 4549 NULL 4550 }; 4551 const char **title_ptr = sc_title; 4552 who_perm_node_t *who_node = NULL; 4553 int prev_weight = -1; 4554 4555 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4556 who_node = uu_avl_next(who_avl, who_node)) { 4557 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4558 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4559 const char *who_name = who_node->who_perm.who_name; 4560 int weight = who_type2weight(who_type); 4561 boolean_t first = B_TRUE; 4562 deleg_perm_node_t *deleg_node; 4563 4564 if (prev_weight != weight) { 4565 (void) printf(*title_ptr++); 4566 prev_weight = weight; 4567 } 4568 4569 if (who_name == NULL || strnlen(who_name, 1) == 0) 4570 (void) printf("\t"); 4571 else 4572 (void) printf("\t%s ", who_name); 4573 4574 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4575 deleg_node = uu_avl_next(avl, deleg_node)) { 4576 if (first) { 4577 (void) printf("%s", 4578 deleg_node->dpn_perm.dp_name); 4579 first = B_FALSE; 4580 } else 4581 (void) printf(",%s", 4582 deleg_node->dpn_perm.dp_name); 4583 } 4584 4585 (void) printf("\n"); 4586 } 4587} 4588 4589static void inline 4590print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 4591 const char *title) 4592{ 4593 who_perm_node_t *who_node = NULL; 4594 boolean_t prt_title = B_TRUE; 4595 uu_avl_walk_t *walk; 4596 4597 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 4598 nomem(); 4599 4600 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 4601 const char *who_name = who_node->who_perm.who_name; 4602 const char *nice_who_name = who_node->who_perm.who_ug_name; 4603 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4604 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4605 char delim = ' '; 4606 deleg_perm_node_t *deleg_node; 4607 boolean_t prt_who = B_TRUE; 4608 4609 for (deleg_node = uu_avl_first(avl); 4610 deleg_node != NULL; 4611 deleg_node = uu_avl_next(avl, deleg_node)) { 4612 if (local != deleg_node->dpn_perm.dp_local || 4613 descend != deleg_node->dpn_perm.dp_descend) 4614 continue; 4615 4616 if (prt_who) { 4617 const char *who = NULL; 4618 if (prt_title) { 4619 prt_title = B_FALSE; 4620 (void) printf(title); 4621 } 4622 4623 switch (who_type) { 4624 case ZFS_DELEG_USER_SETS: 4625 case ZFS_DELEG_USER: 4626 who = gettext("user"); 4627 if (nice_who_name) 4628 who_name = nice_who_name; 4629 break; 4630 case ZFS_DELEG_GROUP_SETS: 4631 case ZFS_DELEG_GROUP: 4632 who = gettext("group"); 4633 if (nice_who_name) 4634 who_name = nice_who_name; 4635 break; 4636 case ZFS_DELEG_EVERYONE_SETS: 4637 case ZFS_DELEG_EVERYONE: 4638 who = gettext("everyone"); 4639 who_name = NULL; 4640 } 4641 4642 prt_who = B_FALSE; 4643 if (who_name == NULL) 4644 (void) printf("\t%s", who); 4645 else 4646 (void) printf("\t%s %s", who, who_name); 4647 } 4648 4649 (void) printf("%c%s", delim, 4650 deleg_node->dpn_perm.dp_name); 4651 delim = ','; 4652 } 4653 4654 if (!prt_who) 4655 (void) printf("\n"); 4656 } 4657 4658 uu_avl_walk_end(walk); 4659} 4660 4661static void 4662print_fs_perms(fs_perm_set_t *fspset) 4663{ 4664 fs_perm_node_t *node = NULL; 4665 char buf[ZFS_MAXNAMELEN+32]; 4666 const char *dsname = buf; 4667 4668 for (node = uu_list_first(fspset->fsps_list); node != NULL; 4669 node = uu_list_next(fspset->fsps_list, node)) { 4670 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 4671 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 4672 int left = 0; 4673 4674 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 4675 gettext("---- Permissions on %s "), 4676 node->fspn_fsperm.fsp_name); 4677 (void) printf(dsname); 4678 left = 70 - strlen(buf); 4679 while (left-- > 0) 4680 (void) printf("-"); 4681 (void) printf("\n"); 4682 4683 print_set_creat_perms(sc_avl); 4684 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 4685 gettext("Local permissions:\n")); 4686 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 4687 gettext("Descendent permissions:\n")); 4688 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 4689 gettext("Local+Descendent permissions:\n")); 4690 } 4691} 4692 4693static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 4694 4695struct deleg_perms { 4696 boolean_t un; 4697 nvlist_t *nvl; 4698}; 4699 4700static int 4701set_deleg_perms(zfs_handle_t *zhp, void *data) 4702{ 4703 struct deleg_perms *perms = (struct deleg_perms *)data; 4704 zfs_type_t zfs_type = zfs_get_type(zhp); 4705 4706 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 4707 return (0); 4708 4709 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 4710} 4711 4712static int 4713zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 4714{ 4715 zfs_handle_t *zhp; 4716 nvlist_t *perm_nvl = NULL; 4717 nvlist_t *update_perm_nvl = NULL; 4718 int error = 1; 4719 int c; 4720 struct allow_opts opts = { 0 }; 4721 4722 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 4723 4724 /* check opts */ 4725 while ((c = getopt(argc, argv, optstr)) != -1) { 4726 switch (c) { 4727 case 'l': 4728 opts.local = B_TRUE; 4729 break; 4730 case 'd': 4731 opts.descend = B_TRUE; 4732 break; 4733 case 'u': 4734 opts.user = B_TRUE; 4735 break; 4736 case 'g': 4737 opts.group = B_TRUE; 4738 break; 4739 case 'e': 4740 opts.everyone = B_TRUE; 4741 break; 4742 case 's': 4743 opts.set = B_TRUE; 4744 break; 4745 case 'c': 4746 opts.create = B_TRUE; 4747 break; 4748 case 'r': 4749 opts.recursive = B_TRUE; 4750 break; 4751 case ':': 4752 (void) fprintf(stderr, gettext("missing argument for " 4753 "'%c' option\n"), optopt); 4754 usage(B_FALSE); 4755 break; 4756 case 'h': 4757 opts.prt_usage = B_TRUE; 4758 break; 4759 case '?': 4760 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4761 optopt); 4762 usage(B_FALSE); 4763 } 4764 } 4765 4766 argc -= optind; 4767 argv += optind; 4768 4769 /* check arguments */ 4770 parse_allow_args(argc, argv, un, &opts); 4771 4772 /* try to open the dataset */ 4773 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM)) 4774 == NULL) { 4775 (void) fprintf(stderr, "Failed to open Dataset *%s*\n", 4776 opts.dataset); 4777 return (-1); 4778 } 4779 4780 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 4781 goto cleanup2; 4782 4783 fs_perm_set_init(&fs_perm_set); 4784 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 4785 (void) fprintf(stderr, "Failed to parse fsacl permissionsn"); 4786 goto cleanup1; 4787 } 4788 4789 if (opts.prt_perms) 4790 print_fs_perms(&fs_perm_set); 4791 else { 4792 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 4793 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 4794 goto cleanup0; 4795 4796 if (un && opts.recursive) { 4797 struct deleg_perms data = { un, update_perm_nvl }; 4798 if (zfs_iter_filesystems(zhp, set_deleg_perms, 4799 &data) != 0) 4800 goto cleanup0; 4801 } 4802 } 4803 4804 error = 0; 4805 4806cleanup0: 4807 nvlist_free(perm_nvl); 4808 if (update_perm_nvl != NULL) 4809 nvlist_free(update_perm_nvl); 4810cleanup1: 4811 fs_perm_set_fini(&fs_perm_set); 4812cleanup2: 4813 zfs_close(zhp); 4814 4815 return (error); 4816} 4817 4818/* 4819 * zfs allow [-r] [-t] <tag> <snap> ... 4820 * 4821 * -r Recursively hold 4822 * -t Temporary hold (hidden option) 4823 * 4824 * Apply a user-hold with the given tag to the list of snapshots. 4825 */ 4826static int 4827zfs_do_allow(int argc, char **argv) 4828{ 4829 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 4830} 4831 4832/* 4833 * zfs unallow [-r] [-t] <tag> <snap> ... 4834 * 4835 * -r Recursively hold 4836 * -t Temporary hold (hidden option) 4837 * 4838 * Apply a user-hold with the given tag to the list of snapshots. 4839 */ 4840static int 4841zfs_do_unallow(int argc, char **argv) 4842{ 4843 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 4844} 4845 4846static int 4847zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 4848{ 4849 int errors = 0; 4850 int i; 4851 const char *tag; 4852 boolean_t recursive = B_FALSE; 4853 boolean_t temphold = B_FALSE; 4854 const char *opts = holding ? "rt" : "r"; 4855 int c; 4856 4857 /* check options */ 4858 while ((c = getopt(argc, argv, opts)) != -1) { 4859 switch (c) { 4860 case 'r': 4861 recursive = B_TRUE; 4862 break; 4863 case 't': 4864 temphold = B_TRUE; 4865 break; 4866 case '?': 4867 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4868 optopt); 4869 usage(B_FALSE); 4870 } 4871 } 4872 4873 argc -= optind; 4874 argv += optind; 4875 4876 /* check number of arguments */ 4877 if (argc < 2) 4878 usage(B_FALSE); 4879 4880 tag = argv[0]; 4881 --argc; 4882 ++argv; 4883 4884 if (holding && tag[0] == '.') { 4885 /* tags starting with '.' are reserved for libzfs */ 4886 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 4887 usage(B_FALSE); 4888 } 4889 4890 for (i = 0; i < argc; ++i) { 4891 zfs_handle_t *zhp; 4892 char parent[ZFS_MAXNAMELEN]; 4893 const char *delim; 4894 char *path = argv[i]; 4895 4896 delim = strchr(path, '@'); 4897 if (delim == NULL) { 4898 (void) fprintf(stderr, 4899 gettext("'%s' is not a snapshot\n"), path); 4900 ++errors; 4901 continue; 4902 } 4903 (void) strncpy(parent, path, delim - path); 4904 parent[delim - path] = '\0'; 4905 4906 zhp = zfs_open(g_zfs, parent, 4907 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4908 if (zhp == NULL) { 4909 ++errors; 4910 continue; 4911 } 4912 if (holding) { 4913 if (zfs_hold(zhp, delim+1, tag, recursive, 4914 temphold, B_FALSE, -1, 0, 0) != 0) 4915 ++errors; 4916 } else { 4917 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 4918 ++errors; 4919 } 4920 zfs_close(zhp); 4921 } 4922 4923 return (errors != 0); 4924} 4925 4926/* 4927 * zfs hold [-r] [-t] <tag> <snap> ... 4928 * 4929 * -r Recursively hold 4930 * -t Temporary hold (hidden option) 4931 * 4932 * Apply a user-hold with the given tag to the list of snapshots. 4933 */ 4934static int 4935zfs_do_hold(int argc, char **argv) 4936{ 4937 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 4938} 4939 4940/* 4941 * zfs release [-r] <tag> <snap> ... 4942 * 4943 * -r Recursively release 4944 * 4945 * Release a user-hold with the given tag from the list of snapshots. 4946 */ 4947static int 4948zfs_do_release(int argc, char **argv) 4949{ 4950 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 4951} 4952 4953typedef struct holds_cbdata { 4954 boolean_t cb_recursive; 4955 const char *cb_snapname; 4956 nvlist_t **cb_nvlp; 4957 size_t cb_max_namelen; 4958 size_t cb_max_taglen; 4959} holds_cbdata_t; 4960 4961#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 4962#define DATETIME_BUF_LEN (32) 4963/* 4964 * 4965 */ 4966static void 4967print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 4968{ 4969 int i; 4970 nvpair_t *nvp = NULL; 4971 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 4972 const char *col; 4973 4974 if (!scripted) { 4975 for (i = 0; i < 3; i++) { 4976 col = gettext(hdr_cols[i]); 4977 if (i < 2) 4978 (void) printf("%-*s ", i ? tagwidth : nwidth, 4979 col); 4980 else 4981 (void) printf("%s\n", col); 4982 } 4983 } 4984 4985 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4986 char *zname = nvpair_name(nvp); 4987 nvlist_t *nvl2; 4988 nvpair_t *nvp2 = NULL; 4989 (void) nvpair_value_nvlist(nvp, &nvl2); 4990 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 4991 char tsbuf[DATETIME_BUF_LEN]; 4992 char *tagname = nvpair_name(nvp2); 4993 uint64_t val = 0; 4994 time_t time; 4995 struct tm t; 4996 char sep = scripted ? '\t' : ' '; 4997 size_t sepnum = scripted ? 1 : 2; 4998 4999 (void) nvpair_value_uint64(nvp2, &val); 5000 time = (time_t)val; 5001 (void) localtime_r(&time, &t); 5002 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5003 gettext(STRFTIME_FMT_STR), &t); 5004 5005 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5006 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5007 } 5008 } 5009} 5010 5011/* 5012 * Generic callback function to list a dataset or snapshot. 5013 */ 5014static int 5015holds_callback(zfs_handle_t *zhp, void *data) 5016{ 5017 holds_cbdata_t *cbp = data; 5018 nvlist_t *top_nvl = *cbp->cb_nvlp; 5019 nvlist_t *nvl = NULL; 5020 nvpair_t *nvp = NULL; 5021 const char *zname = zfs_get_name(zhp); 5022 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5023 5024 if (cbp->cb_recursive) { 5025 const char *snapname; 5026 char *delim = strchr(zname, '@'); 5027 if (delim == NULL) 5028 return (0); 5029 5030 snapname = delim + 1; 5031 if (strcmp(cbp->cb_snapname, snapname)) 5032 return (0); 5033 } 5034 5035 if (zfs_get_holds(zhp, &nvl) != 0) 5036 return (-1); 5037 5038 if (znamelen > cbp->cb_max_namelen) 5039 cbp->cb_max_namelen = znamelen; 5040 5041 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5042 const char *tag = nvpair_name(nvp); 5043 size_t taglen = strnlen(tag, MAXNAMELEN); 5044 if (taglen > cbp->cb_max_taglen) 5045 cbp->cb_max_taglen = taglen; 5046 } 5047 5048 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5049} 5050 5051/* 5052 * zfs holds [-r] <snap> ... 5053 * 5054 * -r Recursively hold 5055 */ 5056static int 5057zfs_do_holds(int argc, char **argv) 5058{ 5059 int errors = 0; 5060 int c; 5061 int i; 5062 boolean_t scripted = B_FALSE; 5063 boolean_t recursive = B_FALSE; 5064 const char *opts = "rH"; 5065 nvlist_t *nvl; 5066 5067 int types = ZFS_TYPE_SNAPSHOT; 5068 holds_cbdata_t cb = { 0 }; 5069 5070 int limit = 0; 5071 int ret; 5072 int flags = 0; 5073 5074 /* check options */ 5075 while ((c = getopt(argc, argv, opts)) != -1) { 5076 switch (c) { 5077 case 'r': 5078 recursive = B_TRUE; 5079 break; 5080 case 'H': 5081 scripted = B_TRUE; 5082 break; 5083 case '?': 5084 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5085 optopt); 5086 usage(B_FALSE); 5087 } 5088 } 5089 5090 if (recursive) { 5091 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5092 flags |= ZFS_ITER_RECURSE; 5093 } 5094 5095 argc -= optind; 5096 argv += optind; 5097 5098 /* check number of arguments */ 5099 if (argc < 1) 5100 usage(B_FALSE); 5101 5102 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5103 nomem(); 5104 5105 for (i = 0; i < argc; ++i) { 5106 char *snapshot = argv[i]; 5107 const char *delim; 5108 const char *snapname; 5109 5110 delim = strchr(snapshot, '@'); 5111 if (delim == NULL) { 5112 (void) fprintf(stderr, 5113 gettext("'%s' is not a snapshot\n"), snapshot); 5114 ++errors; 5115 continue; 5116 } 5117 snapname = delim + 1; 5118 if (recursive) 5119 snapshot[delim - snapshot] = '\0'; 5120 5121 cb.cb_recursive = recursive; 5122 cb.cb_snapname = snapname; 5123 cb.cb_nvlp = &nvl; 5124 5125 /* 5126 * 1. collect holds data, set format options 5127 */ 5128 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5129 holds_callback, &cb); 5130 if (ret != 0) 5131 ++errors; 5132 } 5133 5134 /* 5135 * 2. print holds data 5136 */ 5137 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5138 5139 if (nvlist_empty(nvl)) 5140 (void) printf(gettext("no datasets available\n")); 5141 5142 nvlist_free(nvl); 5143 5144 return (0 != errors); 5145} 5146 5147#define CHECK_SPINNER 30 5148#define SPINNER_TIME 3 /* seconds */ 5149#define MOUNT_TIME 5 /* seconds */ 5150 5151static int 5152get_one_dataset(zfs_handle_t *zhp, void *data) 5153{ 5154 static char *spin[] = { "-", "\\", "|", "/" }; 5155 static int spinval = 0; 5156 static int spincheck = 0; 5157 static time_t last_spin_time = (time_t)0; 5158 get_all_cb_t *cbp = data; 5159 zfs_type_t type = zfs_get_type(zhp); 5160 5161 if (cbp->cb_verbose) { 5162 if (--spincheck < 0) { 5163 time_t now = time(NULL); 5164 if (last_spin_time + SPINNER_TIME < now) { 5165 update_progress(spin[spinval++ % 4]); 5166 last_spin_time = now; 5167 } 5168 spincheck = CHECK_SPINNER; 5169 } 5170 } 5171 5172 /* 5173 * Interate over any nested datasets. 5174 */ 5175 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5176 zfs_close(zhp); 5177 return (1); 5178 } 5179 5180 /* 5181 * Skip any datasets whose type does not match. 5182 */ 5183 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5184 zfs_close(zhp); 5185 return (0); 5186 } 5187 libzfs_add_handle(cbp, zhp); 5188 assert(cbp->cb_used <= cbp->cb_alloc); 5189 5190 return (0); 5191} 5192 5193static void 5194get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5195{ 5196 get_all_cb_t cb = { 0 }; 5197 cb.cb_verbose = verbose; 5198 cb.cb_getone = get_one_dataset; 5199 5200 if (verbose) 5201 set_progress_header(gettext("Reading ZFS config")); 5202 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5203 5204 *dslist = cb.cb_handles; 5205 *count = cb.cb_used; 5206 5207 if (verbose) 5208 finish_progress(gettext("done.")); 5209} 5210 5211/* 5212 * Generic callback for sharing or mounting filesystems. Because the code is so 5213 * similar, we have a common function with an extra parameter to determine which 5214 * mode we are using. 5215 */ 5216#define OP_SHARE 0x1 5217#define OP_MOUNT 0x2 5218 5219/* 5220 * Share or mount a dataset. 5221 */ 5222static int 5223share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5224 boolean_t explicit, const char *options) 5225{ 5226 char mountpoint[ZFS_MAXPROPLEN]; 5227 char shareopts[ZFS_MAXPROPLEN]; 5228 char smbshareopts[ZFS_MAXPROPLEN]; 5229 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5230 struct mnttab mnt; 5231 uint64_t zoned, canmount; 5232 boolean_t shared_nfs, shared_smb; 5233 5234 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5235 5236 /* 5237 * Check to make sure we can mount/share this dataset. If we 5238 * are in the global zone and the filesystem is exported to a 5239 * local zone, or if we are in a local zone and the 5240 * filesystem is not exported, then it is an error. 5241 */ 5242 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5243 5244 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5245 if (!explicit) 5246 return (0); 5247 5248 (void) fprintf(stderr, gettext("cannot %s '%s': " 5249 "dataset is exported to a local zone\n"), cmdname, 5250 zfs_get_name(zhp)); 5251 return (1); 5252 5253 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5254 if (!explicit) 5255 return (0); 5256 5257 (void) fprintf(stderr, gettext("cannot %s '%s': " 5258 "permission denied\n"), cmdname, 5259 zfs_get_name(zhp)); 5260 return (1); 5261 } 5262 5263 /* 5264 * Ignore any filesystems which don't apply to us. This 5265 * includes those with a legacy mountpoint, or those with 5266 * legacy share options. 5267 */ 5268 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5269 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5270 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5271 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5272 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5273 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5274 5275 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5276 strcmp(smbshareopts, "off") == 0) { 5277 if (!explicit) 5278 return (0); 5279 5280 (void) fprintf(stderr, gettext("cannot share '%s': " 5281 "legacy share\n"), zfs_get_name(zhp)); 5282 (void) fprintf(stderr, gettext("use share(1M) to " 5283 "share this filesystem, or set " 5284 "sharenfs property on\n")); 5285 return (1); 5286 } 5287 5288 /* 5289 * We cannot share or mount legacy filesystems. If the 5290 * shareopts is non-legacy but the mountpoint is legacy, we 5291 * treat it as a legacy share. 5292 */ 5293 if (strcmp(mountpoint, "legacy") == 0) { 5294 if (!explicit) 5295 return (0); 5296 5297 (void) fprintf(stderr, gettext("cannot %s '%s': " 5298 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5299 (void) fprintf(stderr, gettext("use %s(1M) to " 5300 "%s this filesystem\n"), cmdname, cmdname); 5301 return (1); 5302 } 5303 5304 if (strcmp(mountpoint, "none") == 0) { 5305 if (!explicit) 5306 return (0); 5307 5308 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5309 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5310 return (1); 5311 } 5312 5313 /* 5314 * canmount explicit outcome 5315 * on no pass through 5316 * on yes pass through 5317 * off no return 0 5318 * off yes display error, return 1 5319 * noauto no return 0 5320 * noauto yes pass through 5321 */ 5322 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5323 if (canmount == ZFS_CANMOUNT_OFF) { 5324 if (!explicit) 5325 return (0); 5326 5327 (void) fprintf(stderr, gettext("cannot %s '%s': " 5328 "'canmount' property is set to 'off'\n"), cmdname, 5329 zfs_get_name(zhp)); 5330 return (1); 5331 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5332 return (0); 5333 } 5334 5335 /* 5336 * At this point, we have verified that the mountpoint and/or 5337 * shareopts are appropriate for auto management. If the 5338 * filesystem is already mounted or shared, return (failing 5339 * for explicit requests); otherwise mount or share the 5340 * filesystem. 5341 */ 5342 switch (op) { 5343 case OP_SHARE: 5344 5345 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5346 shared_smb = zfs_is_shared_smb(zhp, NULL); 5347 5348 if (shared_nfs && shared_smb || 5349 (shared_nfs && strcmp(shareopts, "on") == 0 && 5350 strcmp(smbshareopts, "off") == 0) || 5351 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5352 strcmp(shareopts, "off") == 0)) { 5353 if (!explicit) 5354 return (0); 5355 5356 (void) fprintf(stderr, gettext("cannot share " 5357 "'%s': filesystem already shared\n"), 5358 zfs_get_name(zhp)); 5359 return (1); 5360 } 5361 5362 if (!zfs_is_mounted(zhp, NULL) && 5363 zfs_mount(zhp, NULL, 0) != 0) 5364 return (1); 5365 5366 if (protocol == NULL) { 5367 if (zfs_shareall(zhp) != 0) 5368 return (1); 5369 } else if (strcmp(protocol, "nfs") == 0) { 5370 if (zfs_share_nfs(zhp)) 5371 return (1); 5372 } else if (strcmp(protocol, "smb") == 0) { 5373 if (zfs_share_smb(zhp)) 5374 return (1); 5375 } else { 5376 (void) fprintf(stderr, gettext("cannot share " 5377 "'%s': invalid share type '%s' " 5378 "specified\n"), 5379 zfs_get_name(zhp), protocol); 5380 return (1); 5381 } 5382 5383 break; 5384 5385 case OP_MOUNT: 5386 if (options == NULL) 5387 mnt.mnt_mntopts = ""; 5388 else 5389 mnt.mnt_mntopts = (char *)options; 5390 5391 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5392 zfs_is_mounted(zhp, NULL)) { 5393 if (!explicit) 5394 return (0); 5395 5396 (void) fprintf(stderr, gettext("cannot mount " 5397 "'%s': filesystem already mounted\n"), 5398 zfs_get_name(zhp)); 5399 return (1); 5400 } 5401 5402 if (zfs_mount(zhp, options, flags) != 0) 5403 return (1); 5404 break; 5405 } 5406 5407 return (0); 5408} 5409 5410/* 5411 * Reports progress in the form "(current/total)". Not thread-safe. 5412 */ 5413static void 5414report_mount_progress(int current, int total) 5415{ 5416 static time_t last_progress_time = 0; 5417 time_t now = time(NULL); 5418 char info[32]; 5419 5420 /* report 1..n instead of 0..n-1 */ 5421 ++current; 5422 5423 /* display header if we're here for the first time */ 5424 if (current == 1) { 5425 set_progress_header(gettext("Mounting ZFS filesystems")); 5426 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5427 /* too soon to report again */ 5428 return; 5429 } 5430 5431 last_progress_time = now; 5432 5433 (void) sprintf(info, "(%d/%d)", current, total); 5434 5435 if (current == total) 5436 finish_progress(info); 5437 else 5438 update_progress(info); 5439} 5440 5441static void 5442append_options(char *mntopts, char *newopts) 5443{ 5444 int len = strlen(mntopts); 5445 5446 /* original length plus new string to append plus 1 for the comma */ 5447 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5448 (void) fprintf(stderr, gettext("the opts argument for " 5449 "'%c' option is too long (more than %d chars)\n"), 5450 "-o", MNT_LINE_MAX); 5451 usage(B_FALSE); 5452 } 5453 5454 if (*mntopts) 5455 mntopts[len++] = ','; 5456 5457 (void) strcpy(&mntopts[len], newopts); 5458} 5459 5460static int 5461share_mount(int op, int argc, char **argv) 5462{ 5463 int do_all = 0; 5464 boolean_t verbose = B_FALSE; 5465 int c, ret = 0; 5466 char *options = NULL; 5467 int flags = 0; 5468 5469 /* check options */ 5470 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5471 != -1) { 5472 switch (c) { 5473 case 'a': 5474 do_all = 1; 5475 break; 5476 case 'v': 5477 verbose = B_TRUE; 5478 break; 5479 case 'o': 5480 if (*optarg == '\0') { 5481 (void) fprintf(stderr, gettext("empty mount " 5482 "options (-o) specified\n")); 5483 usage(B_FALSE); 5484 } 5485 5486 if (options == NULL) 5487 options = safe_malloc(MNT_LINE_MAX + 1); 5488 5489 /* option validation is done later */ 5490 append_options(options, optarg); 5491 break; 5492 5493 case 'O': 5494 warnx("no overlay mounts support on FreeBSD, ignoring"); 5495 break; 5496 case ':': 5497 (void) fprintf(stderr, gettext("missing argument for " 5498 "'%c' option\n"), optopt); 5499 usage(B_FALSE); 5500 break; 5501 case '?': 5502 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5503 optopt); 5504 usage(B_FALSE); 5505 } 5506 } 5507 5508 argc -= optind; 5509 argv += optind; 5510 5511 /* check number of arguments */ 5512 if (do_all) { 5513 zfs_handle_t **dslist = NULL; 5514 size_t i, count = 0; 5515 char *protocol = NULL; 5516 5517 if (op == OP_SHARE && argc > 0) { 5518 if (strcmp(argv[0], "nfs") != 0 && 5519 strcmp(argv[0], "smb") != 0) { 5520 (void) fprintf(stderr, gettext("share type " 5521 "must be 'nfs' or 'smb'\n")); 5522 usage(B_FALSE); 5523 } 5524 protocol = argv[0]; 5525 argc--; 5526 argv++; 5527 } 5528 5529 if (argc != 0) { 5530 (void) fprintf(stderr, gettext("too many arguments\n")); 5531 usage(B_FALSE); 5532 } 5533 5534 start_progress_timer(); 5535 get_all_datasets(&dslist, &count, verbose); 5536 5537 if (count == 0) 5538 return (0); 5539 5540 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5541 5542 for (i = 0; i < count; i++) { 5543 if (verbose) 5544 report_mount_progress(i, count); 5545 5546 if (share_mount_one(dslist[i], op, flags, protocol, 5547 B_FALSE, options) != 0) 5548 ret = 1; 5549 zfs_close(dslist[i]); 5550 } 5551 5552 free(dslist); 5553 } else if (argc == 0) { 5554 struct mnttab entry; 5555 5556 if ((op == OP_SHARE) || (options != NULL)) { 5557 (void) fprintf(stderr, gettext("missing filesystem " 5558 "argument (specify -a for all)\n")); 5559 usage(B_FALSE); 5560 } 5561 5562 /* 5563 * When mount is given no arguments, go through /etc/mnttab and 5564 * display any active ZFS mounts. We hide any snapshots, since 5565 * they are controlled automatically. 5566 */ 5567 rewind(mnttab_file); 5568 while (getmntent(mnttab_file, &entry) == 0) { 5569 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5570 strchr(entry.mnt_special, '@') != NULL) 5571 continue; 5572 5573 (void) printf("%-30s %s\n", entry.mnt_special, 5574 entry.mnt_mountp); 5575 } 5576 5577 } else { 5578 zfs_handle_t *zhp; 5579 5580 if (argc > 1) { 5581 (void) fprintf(stderr, 5582 gettext("too many arguments\n")); 5583 usage(B_FALSE); 5584 } 5585 5586 if ((zhp = zfs_open(g_zfs, argv[0], 5587 ZFS_TYPE_FILESYSTEM)) == NULL) { 5588 ret = 1; 5589 } else { 5590 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5591 options); 5592 zfs_close(zhp); 5593 } 5594 } 5595 5596 return (ret); 5597} 5598 5599/* 5600 * zfs mount -a [nfs] 5601 * zfs mount filesystem 5602 * 5603 * Mount all filesystems, or mount the given filesystem. 5604 */ 5605static int 5606zfs_do_mount(int argc, char **argv) 5607{ 5608 return (share_mount(OP_MOUNT, argc, argv)); 5609} 5610 5611/* 5612 * zfs share -a [nfs | smb] 5613 * zfs share filesystem 5614 * 5615 * Share all filesystems, or share the given filesystem. 5616 */ 5617static int 5618zfs_do_share(int argc, char **argv) 5619{ 5620 return (share_mount(OP_SHARE, argc, argv)); 5621} 5622 5623typedef struct unshare_unmount_node { 5624 zfs_handle_t *un_zhp; 5625 char *un_mountp; 5626 uu_avl_node_t un_avlnode; 5627} unshare_unmount_node_t; 5628 5629/* ARGSUSED */ 5630static int 5631unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 5632{ 5633 const unshare_unmount_node_t *l = larg; 5634 const unshare_unmount_node_t *r = rarg; 5635 5636 return (strcmp(l->un_mountp, r->un_mountp)); 5637} 5638 5639/* 5640 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 5641 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 5642 * and unmount it appropriately. 5643 */ 5644static int 5645unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 5646{ 5647 zfs_handle_t *zhp; 5648 int ret; 5649 struct stat64 statbuf; 5650 struct extmnttab entry; 5651 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 5652 ino_t path_inode; 5653 5654 /* 5655 * Search for the path in /etc/mnttab. Rather than looking for the 5656 * specific path, which can be fooled by non-standard paths (i.e. ".." 5657 * or "//"), we stat() the path and search for the corresponding 5658 * (major,minor) device pair. 5659 */ 5660 if (stat64(path, &statbuf) != 0) { 5661 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5662 cmdname, path, strerror(errno)); 5663 return (1); 5664 } 5665 path_inode = statbuf.st_ino; 5666 5667 /* 5668 * Search for the given (major,minor) pair in the mount table. 5669 */ 5670#ifdef sun 5671 rewind(mnttab_file); 5672 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 5673 if (entry.mnt_major == major(statbuf.st_dev) && 5674 entry.mnt_minor == minor(statbuf.st_dev)) 5675 break; 5676 } 5677#else 5678 { 5679 struct statfs sfs; 5680 5681 if (statfs(path, &sfs) != 0) { 5682 (void) fprintf(stderr, "%s: %s\n", path, 5683 strerror(errno)); 5684 ret = -1; 5685 } 5686 statfs2mnttab(&sfs, &entry); 5687 } 5688#endif 5689 if (ret != 0) { 5690 if (op == OP_SHARE) { 5691 (void) fprintf(stderr, gettext("cannot %s '%s': not " 5692 "currently mounted\n"), cmdname, path); 5693 return (1); 5694 } 5695 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 5696 path); 5697 if ((ret = umount2(path, flags)) != 0) 5698 (void) fprintf(stderr, gettext("%s: %s\n"), path, 5699 strerror(errno)); 5700 return (ret != 0); 5701 } 5702 5703 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 5704 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 5705 "filesystem\n"), cmdname, path); 5706 return (1); 5707 } 5708 5709 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 5710 ZFS_TYPE_FILESYSTEM)) == NULL) 5711 return (1); 5712 5713 ret = 1; 5714 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 5715 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 5716 cmdname, path, strerror(errno)); 5717 goto out; 5718 } else if (statbuf.st_ino != path_inode) { 5719 (void) fprintf(stderr, gettext("cannot " 5720 "%s '%s': not a mountpoint\n"), cmdname, path); 5721 goto out; 5722 } 5723 5724 if (op == OP_SHARE) { 5725 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 5726 char smbshare_prop[ZFS_MAXPROPLEN]; 5727 5728 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 5729 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 5730 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 5731 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 5732 5733 if (strcmp(nfs_mnt_prop, "off") == 0 && 5734 strcmp(smbshare_prop, "off") == 0) { 5735 (void) fprintf(stderr, gettext("cannot unshare " 5736 "'%s': legacy share\n"), path); 5737 (void) fprintf(stderr, gettext("use " 5738 "unshare(1M) to unshare this filesystem\n")); 5739 } else if (!zfs_is_shared(zhp)) { 5740 (void) fprintf(stderr, gettext("cannot unshare '%s': " 5741 "not currently shared\n"), path); 5742 } else { 5743 ret = zfs_unshareall_bypath(zhp, path); 5744 } 5745 } else { 5746 char mtpt_prop[ZFS_MAXPROPLEN]; 5747 5748 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 5749 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 5750 5751 if (is_manual) { 5752 ret = zfs_unmount(zhp, NULL, flags); 5753 } else if (strcmp(mtpt_prop, "legacy") == 0) { 5754 (void) fprintf(stderr, gettext("cannot unmount " 5755 "'%s': legacy mountpoint\n"), 5756 zfs_get_name(zhp)); 5757 (void) fprintf(stderr, gettext("use umount(1M) " 5758 "to unmount this filesystem\n")); 5759 } else { 5760 ret = zfs_unmountall(zhp, flags); 5761 } 5762 } 5763 5764out: 5765 zfs_close(zhp); 5766 5767 return (ret != 0); 5768} 5769 5770/* 5771 * Generic callback for unsharing or unmounting a filesystem. 5772 */ 5773static int 5774unshare_unmount(int op, int argc, char **argv) 5775{ 5776 int do_all = 0; 5777 int flags = 0; 5778 int ret = 0; 5779 int c; 5780 zfs_handle_t *zhp; 5781 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 5782 char sharesmb[ZFS_MAXPROPLEN]; 5783 5784 /* check options */ 5785 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 5786 switch (c) { 5787 case 'a': 5788 do_all = 1; 5789 break; 5790 case 'f': 5791 flags = MS_FORCE; 5792 break; 5793 case '?': 5794 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5795 optopt); 5796 usage(B_FALSE); 5797 } 5798 } 5799 5800 argc -= optind; 5801 argv += optind; 5802 5803 if (do_all) { 5804 /* 5805 * We could make use of zfs_for_each() to walk all datasets in 5806 * the system, but this would be very inefficient, especially 5807 * since we would have to linearly search /etc/mnttab for each 5808 * one. Instead, do one pass through /etc/mnttab looking for 5809 * zfs entries and call zfs_unmount() for each one. 5810 * 5811 * Things get a little tricky if the administrator has created 5812 * mountpoints beneath other ZFS filesystems. In this case, we 5813 * have to unmount the deepest filesystems first. To accomplish 5814 * this, we place all the mountpoints in an AVL tree sorted by 5815 * the special type (dataset name), and walk the result in 5816 * reverse to make sure to get any snapshots first. 5817 */ 5818 struct mnttab entry; 5819 uu_avl_pool_t *pool; 5820 uu_avl_t *tree; 5821 unshare_unmount_node_t *node; 5822 uu_avl_index_t idx; 5823 uu_avl_walk_t *walk; 5824 5825 if (argc != 0) { 5826 (void) fprintf(stderr, gettext("too many arguments\n")); 5827 usage(B_FALSE); 5828 } 5829 5830 if (((pool = uu_avl_pool_create("unmount_pool", 5831 sizeof (unshare_unmount_node_t), 5832 offsetof(unshare_unmount_node_t, un_avlnode), 5833 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 5834 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 5835 nomem(); 5836 5837 rewind(mnttab_file); 5838 while (getmntent(mnttab_file, &entry) == 0) { 5839 5840 /* ignore non-ZFS entries */ 5841 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 5842 continue; 5843 5844 /* ignore snapshots */ 5845 if (strchr(entry.mnt_special, '@') != NULL) 5846 continue; 5847 5848 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 5849 ZFS_TYPE_FILESYSTEM)) == NULL) { 5850 ret = 1; 5851 continue; 5852 } 5853 5854 switch (op) { 5855 case OP_SHARE: 5856 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 5857 nfs_mnt_prop, 5858 sizeof (nfs_mnt_prop), 5859 NULL, NULL, 0, B_FALSE) == 0); 5860 if (strcmp(nfs_mnt_prop, "off") != 0) 5861 break; 5862 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 5863 nfs_mnt_prop, 5864 sizeof (nfs_mnt_prop), 5865 NULL, NULL, 0, B_FALSE) == 0); 5866 if (strcmp(nfs_mnt_prop, "off") == 0) 5867 continue; 5868 break; 5869 case OP_MOUNT: 5870 /* Ignore legacy mounts */ 5871 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 5872 nfs_mnt_prop, 5873 sizeof (nfs_mnt_prop), 5874 NULL, NULL, 0, B_FALSE) == 0); 5875 if (strcmp(nfs_mnt_prop, "legacy") == 0) 5876 continue; 5877 /* Ignore canmount=noauto mounts */ 5878 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 5879 ZFS_CANMOUNT_NOAUTO) 5880 continue; 5881 default: 5882 break; 5883 } 5884 5885 node = safe_malloc(sizeof (unshare_unmount_node_t)); 5886 node->un_zhp = zhp; 5887 node->un_mountp = safe_strdup(entry.mnt_mountp); 5888 5889 uu_avl_node_init(node, &node->un_avlnode, pool); 5890 5891 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 5892 uu_avl_insert(tree, node, idx); 5893 } else { 5894 zfs_close(node->un_zhp); 5895 free(node->un_mountp); 5896 free(node); 5897 } 5898 } 5899 5900 /* 5901 * Walk the AVL tree in reverse, unmounting each filesystem and 5902 * removing it from the AVL tree in the process. 5903 */ 5904 if ((walk = uu_avl_walk_start(tree, 5905 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 5906 nomem(); 5907 5908 while ((node = uu_avl_walk_next(walk)) != NULL) { 5909 uu_avl_remove(tree, node); 5910 5911 switch (op) { 5912 case OP_SHARE: 5913 if (zfs_unshareall_bypath(node->un_zhp, 5914 node->un_mountp) != 0) 5915 ret = 1; 5916 break; 5917 5918 case OP_MOUNT: 5919 if (zfs_unmount(node->un_zhp, 5920 node->un_mountp, flags) != 0) 5921 ret = 1; 5922 break; 5923 } 5924 5925 zfs_close(node->un_zhp); 5926 free(node->un_mountp); 5927 free(node); 5928 } 5929 5930 uu_avl_walk_end(walk); 5931 uu_avl_destroy(tree); 5932 uu_avl_pool_destroy(pool); 5933 5934 } else { 5935 if (argc != 1) { 5936 if (argc == 0) 5937 (void) fprintf(stderr, 5938 gettext("missing filesystem argument\n")); 5939 else 5940 (void) fprintf(stderr, 5941 gettext("too many arguments\n")); 5942 usage(B_FALSE); 5943 } 5944 5945 /* 5946 * We have an argument, but it may be a full path or a ZFS 5947 * filesystem. Pass full paths off to unmount_path() (shared by 5948 * manual_unmount), otherwise open the filesystem and pass to 5949 * zfs_unmount(). 5950 */ 5951 if (argv[0][0] == '/') 5952 return (unshare_unmount_path(op, argv[0], 5953 flags, B_FALSE)); 5954 5955 if ((zhp = zfs_open(g_zfs, argv[0], 5956 ZFS_TYPE_FILESYSTEM)) == NULL) 5957 return (1); 5958 5959 verify(zfs_prop_get(zhp, op == OP_SHARE ? 5960 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 5961 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 5962 NULL, 0, B_FALSE) == 0); 5963 5964 switch (op) { 5965 case OP_SHARE: 5966 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 5967 nfs_mnt_prop, 5968 sizeof (nfs_mnt_prop), 5969 NULL, NULL, 0, B_FALSE) == 0); 5970 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 5971 sharesmb, sizeof (sharesmb), NULL, NULL, 5972 0, B_FALSE) == 0); 5973 5974 if (strcmp(nfs_mnt_prop, "off") == 0 && 5975 strcmp(sharesmb, "off") == 0) { 5976 (void) fprintf(stderr, gettext("cannot " 5977 "unshare '%s': legacy share\n"), 5978 zfs_get_name(zhp)); 5979 (void) fprintf(stderr, gettext("use " 5980 "unshare(1M) to unshare this " 5981 "filesystem\n")); 5982 ret = 1; 5983 } else if (!zfs_is_shared(zhp)) { 5984 (void) fprintf(stderr, gettext("cannot " 5985 "unshare '%s': not currently " 5986 "shared\n"), zfs_get_name(zhp)); 5987 ret = 1; 5988 } else if (zfs_unshareall(zhp) != 0) { 5989 ret = 1; 5990 } 5991 break; 5992 5993 case OP_MOUNT: 5994 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 5995 (void) fprintf(stderr, gettext("cannot " 5996 "unmount '%s': legacy " 5997 "mountpoint\n"), zfs_get_name(zhp)); 5998 (void) fprintf(stderr, gettext("use " 5999 "umount(1M) to unmount this " 6000 "filesystem\n")); 6001 ret = 1; 6002 } else if (!zfs_is_mounted(zhp, NULL)) { 6003 (void) fprintf(stderr, gettext("cannot " 6004 "unmount '%s': not currently " 6005 "mounted\n"), 6006 zfs_get_name(zhp)); 6007 ret = 1; 6008 } else if (zfs_unmountall(zhp, flags) != 0) { 6009 ret = 1; 6010 } 6011 break; 6012 } 6013 6014 zfs_close(zhp); 6015 } 6016 6017 return (ret); 6018} 6019 6020/* 6021 * zfs unmount -a 6022 * zfs unmount filesystem 6023 * 6024 * Unmount all filesystems, or a specific ZFS filesystem. 6025 */ 6026static int 6027zfs_do_unmount(int argc, char **argv) 6028{ 6029 return (unshare_unmount(OP_MOUNT, argc, argv)); 6030} 6031 6032/* 6033 * zfs unshare -a 6034 * zfs unshare filesystem 6035 * 6036 * Unshare all filesystems, or a specific ZFS filesystem. 6037 */ 6038static int 6039zfs_do_unshare(int argc, char **argv) 6040{ 6041 return (unshare_unmount(OP_SHARE, argc, argv)); 6042} 6043 6044/* 6045 * Attach/detach the given dataset to/from the given jail 6046 */ 6047/* ARGSUSED */ 6048static int 6049do_jail(int argc, char **argv, int attach) 6050{ 6051 zfs_handle_t *zhp; 6052 int jailid, ret; 6053 6054 /* check number of arguments */ 6055 if (argc < 3) { 6056 (void) fprintf(stderr, gettext("missing argument(s)\n")); 6057 usage(B_FALSE); 6058 } 6059 if (argc > 3) { 6060 (void) fprintf(stderr, gettext("too many arguments\n")); 6061 usage(B_FALSE); 6062 } 6063 6064 jailid = atoi(argv[1]); 6065 if (jailid == 0) { 6066 (void) fprintf(stderr, gettext("invalid jailid\n")); 6067 usage(B_FALSE); 6068 } 6069 6070 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 6071 if (zhp == NULL) 6072 return (1); 6073 6074 ret = (zfs_jail(zhp, jailid, attach) != 0); 6075 6076 zfs_close(zhp); 6077 return (ret); 6078} 6079 6080/* 6081 * zfs jail jailid filesystem 6082 * 6083 * Attach the given dataset to the given jail 6084 */ 6085/* ARGSUSED */ 6086static int 6087zfs_do_jail(int argc, char **argv) 6088{ 6089 6090 return (do_jail(argc, argv, 1)); 6091} 6092 6093/* 6094 * zfs unjail jailid filesystem 6095 * 6096 * Detach the given dataset from the given jail 6097 */ 6098/* ARGSUSED */ 6099static int 6100zfs_do_unjail(int argc, char **argv) 6101{ 6102 6103 return (do_jail(argc, argv, 0)); 6104} 6105 6106/* 6107 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6108 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6109 */ 6110static int 6111manual_mount(int argc, char **argv) 6112{ 6113 zfs_handle_t *zhp; 6114 char mountpoint[ZFS_MAXPROPLEN]; 6115 char mntopts[MNT_LINE_MAX] = { '\0' }; 6116 int ret; 6117 int c; 6118 int flags = 0; 6119 char *dataset, *path; 6120 6121 /* check options */ 6122 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6123 switch (c) { 6124 case 'o': 6125 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6126 break; 6127 case 'O': 6128 flags |= MS_OVERLAY; 6129 break; 6130 case 'm': 6131 flags |= MS_NOMNTTAB; 6132 break; 6133 case ':': 6134 (void) fprintf(stderr, gettext("missing argument for " 6135 "'%c' option\n"), optopt); 6136 usage(B_FALSE); 6137 break; 6138 case '?': 6139 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6140 optopt); 6141 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6142 "<path>\n")); 6143 return (2); 6144 } 6145 } 6146 6147 argc -= optind; 6148 argv += optind; 6149 6150 /* check that we only have two arguments */ 6151 if (argc != 2) { 6152 if (argc == 0) 6153 (void) fprintf(stderr, gettext("missing dataset " 6154 "argument\n")); 6155 else if (argc == 1) 6156 (void) fprintf(stderr, 6157 gettext("missing mountpoint argument\n")); 6158 else 6159 (void) fprintf(stderr, gettext("too many arguments\n")); 6160 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6161 return (2); 6162 } 6163 6164 dataset = argv[0]; 6165 path = argv[1]; 6166 6167 /* try to open the dataset */ 6168 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6169 return (1); 6170 6171 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6172 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6173 6174 /* check for legacy mountpoint and complain appropriately */ 6175 ret = 0; 6176 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6177 if (zmount(dataset, path, flags, MNTTYPE_ZFS, 6178 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6179 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6180 strerror(errno)); 6181 ret = 1; 6182 } 6183 } else { 6184 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6185 "mounted using 'mount -F zfs'\n"), dataset); 6186 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6187 "instead.\n"), path); 6188 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6189 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6190 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6191 "information.\n")); 6192 ret = 1; 6193 } 6194 6195 return (ret); 6196} 6197 6198/* 6199 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6200 * unmounts of non-legacy filesystems, as this is the dominant administrative 6201 * interface. 6202 */ 6203static int 6204manual_unmount(int argc, char **argv) 6205{ 6206 int flags = 0; 6207 int c; 6208 6209 /* check options */ 6210 while ((c = getopt(argc, argv, "f")) != -1) { 6211 switch (c) { 6212 case 'f': 6213 flags = MS_FORCE; 6214 break; 6215 case '?': 6216 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6217 optopt); 6218 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6219 "<path>\n")); 6220 return (2); 6221 } 6222 } 6223 6224 argc -= optind; 6225 argv += optind; 6226 6227 /* check arguments */ 6228 if (argc != 1) { 6229 if (argc == 0) 6230 (void) fprintf(stderr, gettext("missing path " 6231 "argument\n")); 6232 else 6233 (void) fprintf(stderr, gettext("too many arguments\n")); 6234 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6235 return (2); 6236 } 6237 6238 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6239} 6240 6241static int 6242find_command_idx(char *command, int *idx) 6243{ 6244 int i; 6245 6246 for (i = 0; i < NCOMMAND; i++) { 6247 if (command_table[i].name == NULL) 6248 continue; 6249 6250 if (strcmp(command, command_table[i].name) == 0) { 6251 *idx = i; 6252 return (0); 6253 } 6254 } 6255 return (1); 6256} 6257 6258static int 6259zfs_do_diff(int argc, char **argv) 6260{ 6261 zfs_handle_t *zhp; 6262 int flags = 0; 6263 char *tosnap = NULL; 6264 char *fromsnap = NULL; 6265 char *atp, *copy; 6266 int err; 6267 int c; 6268 6269 while ((c = getopt(argc, argv, "FHt")) != -1) { 6270 switch (c) { 6271 case 'F': 6272 flags |= ZFS_DIFF_CLASSIFY; 6273 break; 6274 case 'H': 6275 flags |= ZFS_DIFF_PARSEABLE; 6276 break; 6277 case 't': 6278 flags |= ZFS_DIFF_TIMESTAMP; 6279 break; 6280 default: 6281 (void) fprintf(stderr, 6282 gettext("invalid option '%c'\n"), optopt); 6283 usage(B_FALSE); 6284 } 6285 } 6286 6287 argc -= optind; 6288 argv += optind; 6289 6290 if (argc < 1) { 6291 (void) fprintf(stderr, 6292 gettext("must provide at least one snapshot name\n")); 6293 usage(B_FALSE); 6294 } 6295 6296 if (argc > 2) { 6297 (void) fprintf(stderr, gettext("too many arguments\n")); 6298 usage(B_FALSE); 6299 } 6300 6301 fromsnap = argv[0]; 6302 tosnap = (argc == 2) ? argv[1] : NULL; 6303 6304 copy = NULL; 6305 if (*fromsnap != '@') 6306 copy = strdup(fromsnap); 6307 else if (tosnap) 6308 copy = strdup(tosnap); 6309 if (copy == NULL) 6310 usage(B_FALSE); 6311 6312 if (atp = strchr(copy, '@')) 6313 *atp = '\0'; 6314 6315 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6316 return (1); 6317 6318 free(copy); 6319 6320 /* 6321 * Ignore SIGPIPE so that the library can give us 6322 * information on any failure 6323 */ 6324 (void) sigignore(SIGPIPE); 6325 6326 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6327 6328 zfs_close(zhp); 6329 6330 return (err != 0); 6331} 6332 6333int 6334main(int argc, char **argv) 6335{ 6336 int ret; 6337 int i; 6338 char *progname; 6339 char *cmdname; 6340 6341 (void) setlocale(LC_ALL, ""); 6342 (void) textdomain(TEXT_DOMAIN); 6343 6344 opterr = 0; 6345 6346 if ((g_zfs = libzfs_init()) == NULL) { 6347 (void) fprintf(stderr, gettext("internal error: failed to " 6348 "initialize ZFS library\n")); 6349 return (1); 6350 } 6351 6352 zpool_set_history_str("zfs", argc, argv, history_str); 6353 verify(zpool_stage_history(g_zfs, history_str) == 0); 6354 6355 libzfs_print_on_error(g_zfs, B_TRUE); 6356 6357 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6358 (void) fprintf(stderr, gettext("internal error: unable to " 6359 "open %s\n"), MNTTAB); 6360 return (1); 6361 } 6362 6363 /* 6364 * This command also doubles as the /etc/fs mount and unmount program. 6365 * Determine if we should take this behavior based on argv[0]. 6366 */ 6367 progname = basename(argv[0]); 6368 if (strcmp(progname, "mount") == 0) { 6369 ret = manual_mount(argc, argv); 6370 } else if (strcmp(progname, "umount") == 0) { 6371 ret = manual_unmount(argc, argv); 6372 } else { 6373 /* 6374 * Make sure the user has specified some command. 6375 */ 6376 if (argc < 2) { 6377 (void) fprintf(stderr, gettext("missing command\n")); 6378 usage(B_FALSE); 6379 } 6380 6381 cmdname = argv[1]; 6382 6383 /* 6384 * The 'umount' command is an alias for 'unmount' 6385 */ 6386 if (strcmp(cmdname, "umount") == 0) 6387 cmdname = "unmount"; 6388 6389 /* 6390 * The 'recv' command is an alias for 'receive' 6391 */ 6392 if (strcmp(cmdname, "recv") == 0) 6393 cmdname = "receive"; 6394 6395 /* 6396 * Special case '-?' 6397 */ 6398 if (strcmp(cmdname, "-?") == 0) 6399 usage(B_TRUE); 6400 6401 /* 6402 * Run the appropriate command. 6403 */ 6404 libzfs_mnttab_cache(g_zfs, B_TRUE); 6405 if (find_command_idx(cmdname, &i) == 0) { 6406 current_command = &command_table[i]; 6407 ret = command_table[i].func(argc - 1, argv + 1); 6408 } else if (strchr(cmdname, '=') != NULL) { 6409 verify(find_command_idx("set", &i) == 0); 6410 current_command = &command_table[i]; 6411 ret = command_table[i].func(argc, argv); 6412 } else { 6413 (void) fprintf(stderr, gettext("unrecognized " 6414 "command '%s'\n"), cmdname); 6415 usage(B_FALSE); 6416 } 6417 libzfs_mnttab_cache(g_zfs, B_FALSE); 6418 } 6419 6420 (void) fclose(mnttab_file); 6421 6422 libzfs_fini(g_zfs); 6423 6424 /* 6425 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6426 * for the purposes of running ::findleaks. 6427 */ 6428 if (getenv("ZFS_ABORT") != NULL) { 6429 (void) printf("dumping core by request\n"); 6430 abort(); 6431 } 6432 6433 return (ret); 6434} 6435