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sd: remove 'ssd' driver support
[unleashed/tickless.git] / usr / src / cmd / zfs / zfs_main.c
blob2d7ba86e2de29ee2a866e6f028950dbf5530bce7
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
25 * Copyright 2012 Milan Jurik. All rights reserved.
26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
28 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * Copyright (c) 2014 Integros [integros.com]
30 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
31 * Copyright 2016 Nexenta Systems, Inc.
32 */
33
34 #include <assert.h>
35 #include <ctype.h>
36 #include <errno.h>
37 #include <getopt.h>
38 #include <libgen.h>
39 #include <libintl.h>
40 #include <libuutil.h>
41 #include <libnvpair.h>
42 #include <locale.h>
43 #include <stddef.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <strings.h>
47 #include <unistd.h>
48 #include <fcntl.h>
49 #include <zone.h>
50 #include <grp.h>
51 #include <pwd.h>
52 #include <signal.h>
53 #include <sys/list.h>
54 #include <sys/mkdev.h>
55 #include <sys/mntent.h>
56 #include <sys/mnttab.h>
57 #include <sys/mount.h>
58 #include <sys/stat.h>
59 #include <sys/fs/zfs.h>
60 #include <sys/types.h>
61 #include <time.h>
62
63 #include <libzfs.h>
64 #include <libzfs_core.h>
65 #include <zfs_prop.h>
66 #include <zfs_deleg.h>
67 #include <libuutil.h>
68 #include <aclutils.h>
69 #include <directory.h>
70 #include <idmap.h>
71 #include <libshare.h>
72
73 #include "zfs_iter.h"
74 #include "zfs_util.h"
75 #include "zfs_comutil.h"
76
77 libzfs_handle_t *g_zfs;
78
79 static FILE *mnttab_file;
80 static char history_str[HIS_MAX_RECORD_LEN];
81 static boolean_t log_history = B_TRUE;
82
83 static int zfs_do_clone(int argc, char **argv);
84 static int zfs_do_create(int argc, char **argv);
85 static int zfs_do_destroy(int argc, char **argv);
86 static int zfs_do_get(int argc, char **argv);
87 static int zfs_do_inherit(int argc, char **argv);
88 static int zfs_do_list(int argc, char **argv);
89 static int zfs_do_mount(int argc, char **argv);
90 static int zfs_do_rename(int argc, char **argv);
91 static int zfs_do_rollback(int argc, char **argv);
92 static int zfs_do_set(int argc, char **argv);
93 static int zfs_do_upgrade(int argc, char **argv);
94 static int zfs_do_snapshot(int argc, char **argv);
95 static int zfs_do_unmount(int argc, char **argv);
96 static int zfs_do_share(int argc, char **argv);
97 static int zfs_do_unshare(int argc, char **argv);
98 static int zfs_do_send(int argc, char **argv);
99 static int zfs_do_receive(int argc, char **argv);
100 static int zfs_do_promote(int argc, char **argv);
101 static int zfs_do_userspace(int argc, char **argv);
102 static int zfs_do_allow(int argc, char **argv);
103 static int zfs_do_unallow(int argc, char **argv);
104 static int zfs_do_hold(int argc, char **argv);
105 static int zfs_do_holds(int argc, char **argv);
106 static int zfs_do_release(int argc, char **argv);
107 static int zfs_do_diff(int argc, char **argv);
108 static int zfs_do_bookmark(int argc, char **argv);
109
110 /*
111 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
112 */
113
114 #ifdef DEBUG
115 const char *
116 _umem_debug_init(void)
117 {
118 return ("default,verbose"); /* $UMEM_DEBUG setting */
119 }
120
121 const char *
122 _umem_logging_init(void)
123 {
124 return ("fail,contents"); /* $UMEM_LOGGING setting */
125 }
126 #endif
127
128 typedef enum {
129 HELP_CLONE,
130 HELP_CREATE,
131 HELP_DESTROY,
132 HELP_GET,
133 HELP_INHERIT,
134 HELP_UPGRADE,
135 HELP_LIST,
136 HELP_MOUNT,
137 HELP_PROMOTE,
138 HELP_RECEIVE,
139 HELP_RENAME,
140 HELP_ROLLBACK,
141 HELP_SEND,
142 HELP_SET,
143 HELP_SHARE,
144 HELP_SNAPSHOT,
145 HELP_UNMOUNT,
146 HELP_UNSHARE,
147 HELP_ALLOW,
148 HELP_UNALLOW,
149 HELP_USERSPACE,
150 HELP_GROUPSPACE,
151 HELP_HOLD,
152 HELP_HOLDS,
153 HELP_RELEASE,
154 HELP_DIFF,
155 HELP_BOOKMARK,
156 } zfs_help_t;
157
158 typedef struct zfs_command {
159 const char *name;
160 int (*func)(int argc, char **argv);
161 zfs_help_t usage;
162 } zfs_command_t;
163
164 /*
165 * Master command table. Each ZFS command has a name, associated function, and
166 * usage message. The usage messages need to be internationalized, so we have
167 * to have a function to return the usage message based on a command index.
168 *
169 * These commands are organized according to how they are displayed in the usage
170 * message. An empty command (one with a NULL name) indicates an empty line in
171 * the generic usage message.
172 */
173 static zfs_command_t command_table[] = {
174 { "create", zfs_do_create, HELP_CREATE },
175 { "destroy", zfs_do_destroy, HELP_DESTROY },
176 { NULL },
177 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
178 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
179 { "clone", zfs_do_clone, HELP_CLONE },
180 { "promote", zfs_do_promote, HELP_PROMOTE },
181 { "rename", zfs_do_rename, HELP_RENAME },
182 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK },
183 { NULL },
184 { "list", zfs_do_list, HELP_LIST },
185 { NULL },
186 { "set", zfs_do_set, HELP_SET },
187 { "get", zfs_do_get, HELP_GET },
188 { "inherit", zfs_do_inherit, HELP_INHERIT },
189 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
190 { "userspace", zfs_do_userspace, HELP_USERSPACE },
191 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
192 { NULL },
193 { "mount", zfs_do_mount, HELP_MOUNT },
194 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
195 { "share", zfs_do_share, HELP_SHARE },
196 { "unshare", zfs_do_unshare, HELP_UNSHARE },
197 { NULL },
198 { "send", zfs_do_send, HELP_SEND },
199 { "receive", zfs_do_receive, HELP_RECEIVE },
200 { NULL },
201 { "allow", zfs_do_allow, HELP_ALLOW },
202 { NULL },
203 { "unallow", zfs_do_unallow, HELP_UNALLOW },
204 { NULL },
205 { "hold", zfs_do_hold, HELP_HOLD },
206 { "holds", zfs_do_holds, HELP_HOLDS },
207 { "release", zfs_do_release, HELP_RELEASE },
208 { "diff", zfs_do_diff, HELP_DIFF },
209 };
210
211 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
212
213 zfs_command_t *current_command;
214
215 static const char *
216 get_usage(zfs_help_t idx)
217 {
218 switch (idx) {
219 case HELP_CLONE:
220 return (gettext("\tclone [-p] [-o property=value] ... "
221 "<snapshot> <filesystem|volume>\n"));
222 case HELP_CREATE:
223 return (gettext("\tcreate [-p] [-o property=value] ... "
224 "<filesystem>\n"
225 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
226 "-V <size> <volume>\n"));
227 case HELP_DESTROY:
228 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
229 "\tdestroy [-dnpRrv] "
230 "<filesystem|volume>@<snap>[%<snap>][,...]\n"
231 "\tdestroy <filesystem|volume>#<bookmark>\n"));
232 case HELP_GET:
233 return (gettext("\tget [-rHp] [-d max] "
234 "[-o \"all\" | field[,...]]\n"
235 "\t [-t type[,...]] [-s source[,...]]\n"
236 "\t <\"all\" | property[,...]> "
237 "[filesystem|volume|snapshot|bookmark] ...\n"));
238 case HELP_INHERIT:
239 return (gettext("\tinherit [-rS] <property> "
240 "<filesystem|volume|snapshot> ...\n"));
241 case HELP_UPGRADE:
242 return (gettext("\tupgrade [-v]\n"
243 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
244 case HELP_LIST:
245 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] "
246 "[-s property]...\n\t [-S property]... [-t type[,...]] "
247 "[filesystem|volume|snapshot] ...\n"));
248 case HELP_MOUNT:
249 return (gettext("\tmount\n"
250 "\tmount [-vO] [-o opts] <-a | filesystem>\n"));
251 case HELP_PROMOTE:
252 return (gettext("\tpromote <clone-filesystem>\n"));
253 case HELP_RECEIVE:
254 return (gettext("\treceive [-vnsFu] <filesystem|volume|"
255 "snapshot>\n"
256 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] "
257 "<filesystem>\n"
258 "\treceive -A <filesystem|volume>\n"));
259 case HELP_RENAME:
260 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
261 "<filesystem|volume|snapshot>\n"
262 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
263 "\trename -r <snapshot> <snapshot>\n"));
264 case HELP_ROLLBACK:
265 return (gettext("\trollback [-rRf] <snapshot>\n"));
266 case HELP_SEND:
267 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] "
268 "<snapshot>\n"
269 "\tsend [-Le] [-i snapshot|bookmark] "
270 "<filesystem|volume|snapshot>\n"
271 "\tsend [-nvPe] -t <receive_resume_token>\n"));
272 case HELP_SET:
273 return (gettext("\tset <property=value> ... "
274 "<filesystem|volume|snapshot> ...\n"));
275 case HELP_SHARE:
276 return (gettext("\tshare <-a | filesystem>\n"));
277 case HELP_SNAPSHOT:
278 return (gettext("\tsnapshot [-r] [-o property=value] ... "
279 "<filesystem|volume>@<snap> ...\n"));
280 case HELP_UNMOUNT:
281 return (gettext("\tunmount [-f] "
282 "<-a | filesystem|mountpoint>\n"));
283 case HELP_UNSHARE:
284 return (gettext("\tunshare "
285 "<-a | filesystem|mountpoint>\n"));
286 case HELP_ALLOW:
287 return (gettext("\tallow <filesystem|volume>\n"
288 "\tallow [-ldug] "
289 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
290 "\t <filesystem|volume>\n"
291 "\tallow [-ld] -e <perm|@setname>[,...] "
292 "<filesystem|volume>\n"
293 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
294 "\tallow -s @setname <perm|@setname>[,...] "
295 "<filesystem|volume>\n"));
296 case HELP_UNALLOW:
297 return (gettext("\tunallow [-rldug] "
298 "<\"everyone\"|user|group>[,...]\n"
299 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
300 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
301 "<filesystem|volume>\n"
302 "\tunallow [-r] -c [<perm|@setname>[,...]] "
303 "<filesystem|volume>\n"
304 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
305 "<filesystem|volume>\n"));
306 case HELP_USERSPACE:
307 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
308 "[-s field] ...\n"
309 "\t [-S field] ... [-t type[,...]] "
310 "<filesystem|snapshot>\n"));
311 case HELP_GROUPSPACE:
312 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
313 "[-s field] ...\n"
314 "\t [-S field] ... [-t type[,...]] "
315 "<filesystem|snapshot>\n"));
316 case HELP_HOLD:
317 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
318 case HELP_HOLDS:
319 return (gettext("\tholds [-r] <snapshot> ...\n"));
320 case HELP_RELEASE:
321 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
322 case HELP_DIFF:
323 return (gettext("\tdiff [-FHt] <snapshot> "
324 "[snapshot|filesystem]\n"));
325 case HELP_BOOKMARK:
326 return (gettext("\tbookmark <snapshot> <bookmark>\n"));
327 }
328
329 abort();
330 /* NOTREACHED */
331 }
332
333 void
334 nomem(void)
335 {
336 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
337 exit(1);
338 }
339
340 /*
341 * Utility function to guarantee malloc() success.
342 */
343
344 void *
345 safe_malloc(size_t size)
346 {
347 void *data;
348
349 if ((data = calloc(1, size)) == NULL)
350 nomem();
351
352 return (data);
353 }
354
355 static char *
356 safe_strdup(char *str)
357 {
358 char *dupstr = strdup(str);
359
360 if (dupstr == NULL)
361 nomem();
362
363 return (dupstr);
364 }
365
366 /*
367 * Callback routine that will print out information for each of
368 * the properties.
369 */
370 static int
371 usage_prop_cb(int prop, void *cb)
372 {
373 FILE *fp = cb;
374
375 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
376
377 if (zfs_prop_readonly(prop))
378 (void) fprintf(fp, " NO ");
379 else
380 (void) fprintf(fp, "YES ");
381
382 if (zfs_prop_inheritable(prop))
383 (void) fprintf(fp, " YES ");
384 else
385 (void) fprintf(fp, " NO ");
386
387 if (zfs_prop_values(prop) == NULL)
388 (void) fprintf(fp, "-\n");
389 else
390 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
391
392 return (ZPROP_CONT);
393 }
394
395 /*
396 * Display usage message. If we're inside a command, display only the usage for
397 * that command. Otherwise, iterate over the entire command table and display
398 * a complete usage message.
399 */
400 static void
401 usage(boolean_t requested)
402 {
403 int i;
404 boolean_t show_properties = B_FALSE;
405 FILE *fp = requested ? stdout : stderr;
406
407 if (current_command == NULL) {
408
409 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
410 (void) fprintf(fp,
411 gettext("where 'command' is one of the following:\n\n"));
412
413 for (i = 0; i < NCOMMAND; i++) {
414 if (command_table[i].name == NULL)
415 (void) fprintf(fp, "\n");
416 else
417 (void) fprintf(fp, "%s",
418 get_usage(command_table[i].usage));
419 }
420
421 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
422 "pool/[dataset/]*dataset[@name]\n"));
423 } else {
424 (void) fprintf(fp, gettext("usage:\n"));
425 (void) fprintf(fp, "%s", get_usage(current_command->usage));
426 }
427
428 if (current_command != NULL &&
429 (strcmp(current_command->name, "set") == 0 ||
430 strcmp(current_command->name, "get") == 0 ||
431 strcmp(current_command->name, "inherit") == 0 ||
432 strcmp(current_command->name, "list") == 0))
433 show_properties = B_TRUE;
434
435 if (show_properties) {
436 (void) fprintf(fp,
437 gettext("\nThe following properties are supported:\n"));
438
439 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
440 "PROPERTY", "EDIT", "INHERIT", "VALUES");
441
442 /* Iterate over all properties */
443 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
444 ZFS_TYPE_DATASET);
445
446 (void) fprintf(fp, "\t%-15s ", "userused@...");
447 (void) fprintf(fp, " NO NO <size>\n");
448 (void) fprintf(fp, "\t%-15s ", "groupused@...");
449 (void) fprintf(fp, " NO NO <size>\n");
450 (void) fprintf(fp, "\t%-15s ", "userquota@...");
451 (void) fprintf(fp, "YES NO <size> | none\n");
452 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
453 (void) fprintf(fp, "YES NO <size> | none\n");
454 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
455 (void) fprintf(fp, " NO NO <size>\n");
456
457 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
458 "with standard units such as K, M, G, etc.\n"));
459 (void) fprintf(fp, gettext("\nUser-defined properties can "
460 "be specified by using a name containing a colon (:).\n"));
461 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
462 "properties must be appended with\n"
463 "a user or group specifier of one of these forms:\n"
464 " POSIX name (eg: \"matt\")\n"
465 " POSIX id (eg: \"126829\")\n"
466 " SMB name@domain (eg: \"matt@sun\")\n"
467 " SMB SID (eg: \"S-1-234-567-89\")\n"));
468 } else {
469 (void) fprintf(fp,
470 gettext("\nFor the property list, run: %s\n"),
471 "zfs set|get");
472 (void) fprintf(fp,
473 gettext("\nFor the delegated permission list, run: %s\n"),
474 "zfs allow|unallow");
475 }
476
477 /*
478 * See comments at end of main().
479 */
480 if (getenv("ZFS_ABORT") != NULL) {
481 (void) printf("dumping core by request\n");
482 abort();
483 }
484
485 exit(requested ? 0 : 2);
486 }
487
488 /*
489 * Take a property=value argument string and add it to the given nvlist.
490 * Modifies the argument inplace.
491 */
492 static int
493 parseprop(nvlist_t *props, char *propname)
494 {
495 char *propval, *strval;
496
497 if ((propval = strchr(propname, '=')) == NULL) {
498 (void) fprintf(stderr, gettext("missing "
499 "'=' for property=value argument\n"));
500 return (-1);
501 }
502 *propval = '\0';
503 propval++;
504 if (nvlist_lookup_string(props, propname, &strval) == 0) {
505 (void) fprintf(stderr, gettext("property '%s' "
506 "specified multiple times\n"), propname);
507 return (-1);
508 }
509 if (nvlist_add_string(props, propname, propval) != 0)
510 nomem();
511 return (0);
512 }
513
514 static int
515 parse_depth(char *opt, int *flags)
516 {
517 char *tmp;
518 int depth;
519
520 depth = (int)strtol(opt, &tmp, 0);
521 if (*tmp) {
522 (void) fprintf(stderr,
523 gettext("%s is not an integer\n"), optarg);
524 usage(B_FALSE);
525 }
526 if (depth < 0) {
527 (void) fprintf(stderr,
528 gettext("Depth can not be negative.\n"));
529 usage(B_FALSE);
530 }
531 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
532 return (depth);
533 }
534
535 #define PROGRESS_DELAY 2 /* seconds */
536
537 static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b";
538 static time_t pt_begin;
539 static char *pt_header = NULL;
540 static boolean_t pt_shown;
541
542 static void
543 start_progress_timer(void)
544 {
545 pt_begin = time(NULL) + PROGRESS_DELAY;
546 pt_shown = B_FALSE;
547 }
548
549 static void
550 set_progress_header(char *header)
551 {
552 assert(pt_header == NULL);
553 pt_header = safe_strdup(header);
554 if (pt_shown) {
555 (void) printf("%s: ", header);
556 (void) fflush(stdout);
557 }
558 }
559
560 static void
561 update_progress(char *update)
562 {
563 if (!pt_shown && time(NULL) > pt_begin) {
564 int len = strlen(update);
565
566 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
567 pt_reverse);
568 (void) fflush(stdout);
569 pt_shown = B_TRUE;
570 } else if (pt_shown) {
571 int len = strlen(update);
572
573 (void) printf("%s%*.*s", update, len, len, pt_reverse);
574 (void) fflush(stdout);
575 }
576 }
577
578 static void
579 finish_progress(char *done)
580 {
581 if (pt_shown) {
582 (void) printf("%s\n", done);
583 (void) fflush(stdout);
584 }
585 free(pt_header);
586 pt_header = NULL;
587 }
588
589 /*
590 * Check if the dataset is mountable and should be automatically mounted.
591 */
592 static boolean_t
593 should_auto_mount(zfs_handle_t *zhp)
594 {
595 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp)))
596 return (B_FALSE);
597 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON);
598 }
599
600 /*
601 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
602 *
603 * Given an existing dataset, create a writable copy whose initial contents
604 * are the same as the source. The newly created dataset maintains a
605 * dependency on the original; the original cannot be destroyed so long as
606 * the clone exists.
607 *
608 * The '-p' flag creates all the non-existing ancestors of the target first.
609 */
610 static int
611 zfs_do_clone(int argc, char **argv)
612 {
613 zfs_handle_t *zhp = NULL;
614 boolean_t parents = B_FALSE;
615 nvlist_t *props;
616 int ret = 0;
617 int c;
618
619 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
620 nomem();
621
622 /* check options */
623 while ((c = getopt(argc, argv, "o:p")) != -1) {
624 switch (c) {
625 case 'o':
626 if (parseprop(props, optarg) != 0)
627 return (1);
628 break;
629 case 'p':
630 parents = B_TRUE;
631 break;
632 case '?':
633 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
634 optopt);
635 goto usage;
636 }
637 }
638
639 argc -= optind;
640 argv += optind;
641
642 /* check number of arguments */
643 if (argc < 1) {
644 (void) fprintf(stderr, gettext("missing source dataset "
645 "argument\n"));
646 goto usage;
647 }
648 if (argc < 2) {
649 (void) fprintf(stderr, gettext("missing target dataset "
650 "argument\n"));
651 goto usage;
652 }
653 if (argc > 2) {
654 (void) fprintf(stderr, gettext("too many arguments\n"));
655 goto usage;
656 }
657
658 /* open the source dataset */
659 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
660 return (1);
661
662 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
663 ZFS_TYPE_VOLUME)) {
664 /*
665 * Now create the ancestors of the target dataset. If the
666 * target already exists and '-p' option was used we should not
667 * complain.
668 */
669 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
670 ZFS_TYPE_VOLUME))
671 return (0);
672 if (zfs_create_ancestors(g_zfs, argv[1]) != 0)
673 return (1);
674 }
675
676 /* pass to libzfs */
677 ret = zfs_clone(zhp, argv[1], props);
678
679 /* create the mountpoint if necessary */
680 if (ret == 0) {
681 zfs_handle_t *clone;
682
683 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET);
684 if (clone != NULL) {
685 /*
686 * If the user doesn't want the dataset
687 * automatically mounted, then skip the mount/share
688 * step.
689 */
690 if (should_auto_mount(clone)) {
691 if ((ret = zfs_mount(clone, NULL, 0)) != 0) {
692 (void) fprintf(stderr, gettext("clone "
693 "successfully created, "
694 "but not mounted\n"));
695 } else if ((ret = zfs_share(clone)) != 0) {
696 (void) fprintf(stderr, gettext("clone "
697 "successfully created, "
698 "but not shared\n"));
699 }
700 }
701 zfs_close(clone);
702 }
703 }
704
705 zfs_close(zhp);
706 nvlist_free(props);
707
708 return (!!ret);
709
710 usage:
711 if (zhp)
712 zfs_close(zhp);
713 nvlist_free(props);
714 usage(B_FALSE);
715 return (-1);
716 }
717
718 /*
719 * zfs create [-p] [-o prop=value] ... fs
720 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
721 *
722 * Create a new dataset. This command can be used to create filesystems
723 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
724 * For volumes, the user must specify a size to be used.
725 *
726 * The '-s' flag applies only to volumes, and indicates that we should not try
727 * to set the reservation for this volume. By default we set a reservation
728 * equal to the size for any volume. For pools with SPA_VERSION >=
729 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
730 *
731 * The '-p' flag creates all the non-existing ancestors of the target first.
732 */
733 static int
734 zfs_do_create(int argc, char **argv)
735 {
736 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
737 zfs_handle_t *zhp = NULL;
738 uint64_t volsize = 0;
739 int c;
740 boolean_t noreserve = B_FALSE;
741 boolean_t bflag = B_FALSE;
742 boolean_t parents = B_FALSE;
743 int ret = 1;
744 nvlist_t *props;
745 uint64_t intval;
746
747 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
748 nomem();
749
750 /* check options */
751 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
752 switch (c) {
753 case 'V':
754 type = ZFS_TYPE_VOLUME;
755 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
756 (void) fprintf(stderr, gettext("bad volume "
757 "size '%s': %s\n"), optarg,
758 libzfs_error_description(g_zfs));
759 goto error;
760 }
761
762 if (nvlist_add_uint64(props,
763 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
764 nomem();
765 volsize = intval;
766 break;
767 case 'p':
768 parents = B_TRUE;
769 break;
770 case 'b':
771 bflag = B_TRUE;
772 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
773 (void) fprintf(stderr, gettext("bad volume "
774 "block size '%s': %s\n"), optarg,
775 libzfs_error_description(g_zfs));
776 goto error;
777 }
778
779 if (nvlist_add_uint64(props,
780 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
781 intval) != 0)
782 nomem();
783 break;
784 case 'o':
785 if (parseprop(props, optarg) != 0)
786 goto error;
787 break;
788 case 's':
789 noreserve = B_TRUE;
790 break;
791 case ':':
792 (void) fprintf(stderr, gettext("missing size "
793 "argument\n"));
794 goto badusage;
795 case '?':
796 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
797 optopt);
798 goto badusage;
799 }
800 }
801
802 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
803 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
804 "used when creating a volume\n"));
805 goto badusage;
806 }
807
808 argc -= optind;
809 argv += optind;
810
811 /* check number of arguments */
812 if (argc == 0) {
813 (void) fprintf(stderr, gettext("missing %s argument\n"),
814 zfs_type_to_name(type));
815 goto badusage;
816 }
817 if (argc > 1) {
818 (void) fprintf(stderr, gettext("too many arguments\n"));
819 goto badusage;
820 }
821
822 if (type == ZFS_TYPE_VOLUME && !noreserve) {
823 zpool_handle_t *zpool_handle;
824 nvlist_t *real_props = NULL;
825 uint64_t spa_version;
826 char *p;
827 zfs_prop_t resv_prop;
828 char *strval;
829 char msg[1024];
830
831 if ((p = strchr(argv[0], '/')) != NULL)
832 *p = '\0';
833 zpool_handle = zpool_open(g_zfs, argv[0]);
834 if (p != NULL)
835 *p = '/';
836 if (zpool_handle == NULL)
837 goto error;
838 spa_version = zpool_get_prop_int(zpool_handle,
839 ZPOOL_PROP_VERSION, NULL);
840 if (spa_version >= SPA_VERSION_REFRESERVATION)
841 resv_prop = ZFS_PROP_REFRESERVATION;
842 else
843 resv_prop = ZFS_PROP_RESERVATION;
844
845 (void) snprintf(msg, sizeof (msg),
846 gettext("cannot create '%s'"), argv[0]);
847 if (props && (real_props = zfs_valid_proplist(g_zfs, type,
848 props, 0, NULL, zpool_handle, msg)) == NULL) {
849 zpool_close(zpool_handle);
850 goto error;
851 }
852 zpool_close(zpool_handle);
853
854 volsize = zvol_volsize_to_reservation(volsize, real_props);
855 nvlist_free(real_props);
856
857 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
858 &strval) != 0) {
859 if (nvlist_add_uint64(props,
860 zfs_prop_to_name(resv_prop), volsize) != 0) {
861 nvlist_free(props);
862 nomem();
863 }
864 }
865 }
866
867 if (parents && zfs_name_valid(argv[0], type)) {
868 /*
869 * Now create the ancestors of target dataset. If the target
870 * already exists and '-p' option was used we should not
871 * complain.
872 */
873 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
874 ret = 0;
875 goto error;
876 }
877 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
878 goto error;
879 }
880
881 /* pass to libzfs */
882 if (zfs_create(g_zfs, argv[0], type, props) != 0)
883 goto error;
884
885 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
886 goto error;
887
888 ret = 0;
889
890 /*
891 * Mount and/or share the new filesystem as appropriate. We provide a
892 * verbose error message to let the user know that their filesystem was
893 * in fact created, even if we failed to mount or share it.
894 * If the user doesn't want the dataset automatically mounted,
895 * then skip the mount/share step altogether.
896 */
897 if (should_auto_mount(zhp)) {
898 if (zfs_mount(zhp, NULL, 0) != 0) {
899 (void) fprintf(stderr, gettext("filesystem "
900 "successfully created, but not mounted\n"));
901 ret = 1;
902 } else if (zfs_share(zhp) != 0) {
903 (void) fprintf(stderr, gettext("filesystem "
904 "successfully created, but not shared\n"));
905 ret = 1;
906 }
907 }
908
909 error:
910 if (zhp)
911 zfs_close(zhp);
912 nvlist_free(props);
913 return (ret);
914 badusage:
915 nvlist_free(props);
916 usage(B_FALSE);
917 return (2);
918 }
919
920 /*
921 * zfs destroy [-rRf] <fs, vol>
922 * zfs destroy [-rRd] <snap>
923 *
924 * -r Recursively destroy all children
925 * -R Recursively destroy all dependents, including clones
926 * -f Force unmounting of any dependents
927 * -d If we can't destroy now, mark for deferred destruction
928 *
929 * Destroys the given dataset. By default, it will unmount any filesystems,
930 * and refuse to destroy a dataset that has any dependents. A dependent can
931 * either be a child, or a clone of a child.
932 */
933 typedef struct destroy_cbdata {
934 boolean_t cb_first;
935 boolean_t cb_force;
936 boolean_t cb_recurse;
937 boolean_t cb_error;
938 boolean_t cb_doclones;
939 zfs_handle_t *cb_target;
940 boolean_t cb_defer_destroy;
941 boolean_t cb_verbose;
942 boolean_t cb_parsable;
943 boolean_t cb_dryrun;
944 nvlist_t *cb_nvl;
945 nvlist_t *cb_batchedsnaps;
946
947 /* first snap in contiguous run */
948 char *cb_firstsnap;
949 /* previous snap in contiguous run */
950 char *cb_prevsnap;
951 int64_t cb_snapused;
952 char *cb_snapspec;
953 char *cb_bookmark;
954 } destroy_cbdata_t;
955
956 /*
957 * Check for any dependents based on the '-r' or '-R' flags.
958 */
959 static int
960 destroy_check_dependent(zfs_handle_t *zhp, void *data)
961 {
962 destroy_cbdata_t *cbp = data;
963 const char *tname = zfs_get_name(cbp->cb_target);
964 const char *name = zfs_get_name(zhp);
965
966 if (strncmp(tname, name, strlen(tname)) == 0 &&
967 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
968 /*
969 * This is a direct descendant, not a clone somewhere else in
970 * the hierarchy.
971 */
972 if (cbp->cb_recurse)
973 goto out;
974
975 if (cbp->cb_first) {
976 (void) fprintf(stderr, gettext("cannot destroy '%s': "
977 "%s has children\n"),
978 zfs_get_name(cbp->cb_target),
979 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
980 (void) fprintf(stderr, gettext("use '-r' to destroy "
981 "the following datasets:\n"));
982 cbp->cb_first = B_FALSE;
983 cbp->cb_error = B_TRUE;
984 }
985
986 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
987 } else {
988 /*
989 * This is a clone. We only want to report this if the '-r'
990 * wasn't specified, or the target is a snapshot.
991 */
992 if (!cbp->cb_recurse &&
993 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
994 goto out;
995
996 if (cbp->cb_first) {
997 (void) fprintf(stderr, gettext("cannot destroy '%s': "
998 "%s has dependent clones\n"),
999 zfs_get_name(cbp->cb_target),
1000 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1001 (void) fprintf(stderr, gettext("use '-R' to destroy "
1002 "the following datasets:\n"));
1003 cbp->cb_first = B_FALSE;
1004 cbp->cb_error = B_TRUE;
1005 cbp->cb_dryrun = B_TRUE;
1006 }
1007
1008 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1009 }
1010
1011 out:
1012 zfs_close(zhp);
1013 return (0);
1014 }
1015
1016 static int
1017 destroy_callback(zfs_handle_t *zhp, void *data)
1018 {
1019 destroy_cbdata_t *cb = data;
1020 const char *name = zfs_get_name(zhp);
1021
1022 if (cb->cb_verbose) {
1023 if (cb->cb_parsable) {
1024 (void) printf("destroy\t%s\n", name);
1025 } else if (cb->cb_dryrun) {
1026 (void) printf(gettext("would destroy %s\n"),
1027 name);
1028 } else {
1029 (void) printf(gettext("will destroy %s\n"),
1030 name);
1031 }
1032 }
1033
1034 /*
1035 * Ignore pools (which we've already flagged as an error before getting
1036 * here).
1037 */
1038 if (strchr(zfs_get_name(zhp), '/') == NULL &&
1039 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1040 zfs_close(zhp);
1041 return (0);
1042 }
1043 if (cb->cb_dryrun) {
1044 zfs_close(zhp);
1045 return (0);
1046 }
1047
1048 /*
1049 * We batch up all contiguous snapshots (even of different
1050 * filesystems) and destroy them with one ioctl. We can't
1051 * simply do all snap deletions and then all fs deletions,
1052 * because we must delete a clone before its origin.
1053 */
1054 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
1055 fnvlist_add_boolean(cb->cb_batchedsnaps, name);
1056 } else {
1057 int error = zfs_destroy_snaps_nvl(g_zfs,
1058 cb->cb_batchedsnaps, B_FALSE);
1059 fnvlist_free(cb->cb_batchedsnaps);
1060 cb->cb_batchedsnaps = fnvlist_alloc();
1061
1062 if (error != 0 ||
1063 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
1064 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
1065 zfs_close(zhp);
1066 return (-1);
1067 }
1068 }
1069
1070 zfs_close(zhp);
1071 return (0);
1072 }
1073
1074 static int
1075 destroy_print_cb(zfs_handle_t *zhp, void *arg)
1076 {
1077 destroy_cbdata_t *cb = arg;
1078 const char *name = zfs_get_name(zhp);
1079 int err = 0;
1080
1081 if (nvlist_exists(cb->cb_nvl, name)) {
1082 if (cb->cb_firstsnap == NULL)
1083 cb->cb_firstsnap = strdup(name);
1084 free(cb->cb_prevsnap);
1085 /* this snap continues the current range */
1086 cb->cb_prevsnap = strdup(name);
1087 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1088 nomem();
1089 if (cb->cb_verbose) {
1090 if (cb->cb_parsable) {
1091 (void) printf("destroy\t%s\n", name);
1092 } else if (cb->cb_dryrun) {
1093 (void) printf(gettext("would destroy %s\n"),
1094 name);
1095 } else {
1096 (void) printf(gettext("will destroy %s\n"),
1097 name);
1098 }
1099 }
1100 } else if (cb->cb_firstsnap != NULL) {
1101 /* end of this range */
1102 uint64_t used = 0;
1103 err = lzc_snaprange_space(cb->cb_firstsnap,
1104 cb->cb_prevsnap, &used);
1105 cb->cb_snapused += used;
1106 free(cb->cb_firstsnap);
1107 cb->cb_firstsnap = NULL;
1108 free(cb->cb_prevsnap);
1109 cb->cb_prevsnap = NULL;
1110 }
1111 zfs_close(zhp);
1112 return (err);
1113 }
1114
1115 static int
1116 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1117 {
1118 int err = 0;
1119 assert(cb->cb_firstsnap == NULL);
1120 assert(cb->cb_prevsnap == NULL);
1121 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1122 if (cb->cb_firstsnap != NULL) {
1123 uint64_t used = 0;
1124 if (err == 0) {
1125 err = lzc_snaprange_space(cb->cb_firstsnap,
1126 cb->cb_prevsnap, &used);
1127 }
1128 cb->cb_snapused += used;
1129 free(cb->cb_firstsnap);
1130 cb->cb_firstsnap = NULL;
1131 free(cb->cb_prevsnap);
1132 cb->cb_prevsnap = NULL;
1133 }
1134 return (err);
1135 }
1136
1137 static int
1138 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1139 {
1140 destroy_cbdata_t *cb = arg;
1141 int err = 0;
1142
1143 /* Check for clones. */
1144 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1145 cb->cb_target = zhp;
1146 cb->cb_first = B_TRUE;
1147 err = zfs_iter_dependents(zhp, B_TRUE,
1148 destroy_check_dependent, cb);
1149 }
1150
1151 if (err == 0) {
1152 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1153 nomem();
1154 }
1155 zfs_close(zhp);
1156 return (err);
1157 }
1158
1159 static int
1160 gather_snapshots(zfs_handle_t *zhp, void *arg)
1161 {
1162 destroy_cbdata_t *cb = arg;
1163 int err = 0;
1164
1165 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1166 if (err == ENOENT)
1167 err = 0;
1168 if (err != 0)
1169 goto out;
1170
1171 if (cb->cb_verbose) {
1172 err = destroy_print_snapshots(zhp, cb);
1173 if (err != 0)
1174 goto out;
1175 }
1176
1177 if (cb->cb_recurse)
1178 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1179
1180 out:
1181 zfs_close(zhp);
1182 return (err);
1183 }
1184
1185 static int
1186 destroy_clones(destroy_cbdata_t *cb)
1187 {
1188 nvpair_t *pair;
1189 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1190 pair != NULL;
1191 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1192 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1193 ZFS_TYPE_SNAPSHOT);
1194 if (zhp != NULL) {
1195 boolean_t defer = cb->cb_defer_destroy;
1196 int err = 0;
1197
1198 /*
1199 * We can't defer destroy non-snapshots, so set it to
1200 * false while destroying the clones.
1201 */
1202 cb->cb_defer_destroy = B_FALSE;
1203 err = zfs_iter_dependents(zhp, B_FALSE,
1204 destroy_callback, cb);
1205 cb->cb_defer_destroy = defer;
1206 zfs_close(zhp);
1207 if (err != 0)
1208 return (err);
1209 }
1210 }
1211 return (0);
1212 }
1213
1214 static int
1215 zfs_do_destroy(int argc, char **argv)
1216 {
1217 destroy_cbdata_t cb = { 0 };
1218 int rv = 0;
1219 int err = 0;
1220 int c;
1221 zfs_handle_t *zhp = NULL;
1222 char *at, *pound;
1223 zfs_type_t type = ZFS_TYPE_DATASET;
1224
1225 /* check options */
1226 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1227 switch (c) {
1228 case 'v':
1229 cb.cb_verbose = B_TRUE;
1230 break;
1231 case 'p':
1232 cb.cb_verbose = B_TRUE;
1233 cb.cb_parsable = B_TRUE;
1234 break;
1235 case 'n':
1236 cb.cb_dryrun = B_TRUE;
1237 break;
1238 case 'd':
1239 cb.cb_defer_destroy = B_TRUE;
1240 type = ZFS_TYPE_SNAPSHOT;
1241 break;
1242 case 'f':
1243 cb.cb_force = B_TRUE;
1244 break;
1245 case 'r':
1246 cb.cb_recurse = B_TRUE;
1247 break;
1248 case 'R':
1249 cb.cb_recurse = B_TRUE;
1250 cb.cb_doclones = B_TRUE;
1251 break;
1252 case '?':
1253 default:
1254 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1255 optopt);
1256 usage(B_FALSE);
1257 }
1258 }
1259
1260 argc -= optind;
1261 argv += optind;
1262
1263 /* check number of arguments */
1264 if (argc == 0) {
1265 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1266 usage(B_FALSE);
1267 }
1268 if (argc > 1) {
1269 (void) fprintf(stderr, gettext("too many arguments\n"));
1270 usage(B_FALSE);
1271 }
1272
1273 at = strchr(argv[0], '@');
1274 pound = strchr(argv[0], '#');
1275 if (at != NULL) {
1276
1277 /* Build the list of snaps to destroy in cb_nvl. */
1278 cb.cb_nvl = fnvlist_alloc();
1279
1280 *at = '\0';
1281 zhp = zfs_open(g_zfs, argv[0],
1282 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1283 if (zhp == NULL)
1284 return (1);
1285
1286 cb.cb_snapspec = at + 1;
1287 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1288 cb.cb_error) {
1289 rv = 1;
1290 goto out;
1291 }
1292
1293 if (nvlist_empty(cb.cb_nvl)) {
1294 (void) fprintf(stderr, gettext("could not find any "
1295 "snapshots to destroy; check snapshot names.\n"));
1296 rv = 1;
1297 goto out;
1298 }
1299
1300 if (cb.cb_verbose) {
1301 char buf[16];
1302 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1303 if (cb.cb_parsable) {
1304 (void) printf("reclaim\t%llu\n",
1305 cb.cb_snapused);
1306 } else if (cb.cb_dryrun) {
1307 (void) printf(gettext("would reclaim %s\n"),
1308 buf);
1309 } else {
1310 (void) printf(gettext("will reclaim %s\n"),
1311 buf);
1312 }
1313 }
1314
1315 if (!cb.cb_dryrun) {
1316 if (cb.cb_doclones) {
1317 cb.cb_batchedsnaps = fnvlist_alloc();
1318 err = destroy_clones(&cb);
1319 if (err == 0) {
1320 err = zfs_destroy_snaps_nvl(g_zfs,
1321 cb.cb_batchedsnaps, B_FALSE);
1322 }
1323 if (err != 0) {
1324 rv = 1;
1325 goto out;
1326 }
1327 }
1328 if (err == 0) {
1329 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1330 cb.cb_defer_destroy);
1331 }
1332 }
1333
1334 if (err != 0)
1335 rv = 1;
1336 } else if (pound != NULL) {
1337 int err;
1338 nvlist_t *nvl;
1339
1340 if (cb.cb_dryrun) {
1341 (void) fprintf(stderr,
1342 "dryrun is not supported with bookmark\n");
1343 return (-1);
1344 }
1345
1346 if (cb.cb_defer_destroy) {
1347 (void) fprintf(stderr,
1348 "defer destroy is not supported with bookmark\n");
1349 return (-1);
1350 }
1351
1352 if (cb.cb_recurse) {
1353 (void) fprintf(stderr,
1354 "recursive is not supported with bookmark\n");
1355 return (-1);
1356 }
1357
1358 if (!zfs_bookmark_exists(argv[0])) {
1359 (void) fprintf(stderr, gettext("bookmark '%s' "
1360 "does not exist.\n"), argv[0]);
1361 return (1);
1362 }
1363
1364 nvl = fnvlist_alloc();
1365 fnvlist_add_boolean(nvl, argv[0]);
1366
1367 err = lzc_destroy_bookmarks(nvl, NULL);
1368 if (err != 0) {
1369 (void) zfs_standard_error(g_zfs, err,
1370 "cannot destroy bookmark");
1371 }
1372
1373 nvlist_free(cb.cb_nvl);
1374
1375 return (err);
1376 } else {
1377 /* Open the given dataset */
1378 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1379 return (1);
1380
1381 cb.cb_target = zhp;
1382
1383 /*
1384 * Perform an explicit check for pools before going any further.
1385 */
1386 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1387 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1388 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1389 "operation does not apply to pools\n"),
1390 zfs_get_name(zhp));
1391 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1392 "%s' to destroy all datasets in the pool\n"),
1393 zfs_get_name(zhp));
1394 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1395 "to destroy the pool itself\n"), zfs_get_name(zhp));
1396 rv = 1;
1397 goto out;
1398 }
1399
1400 /*
1401 * Check for any dependents and/or clones.
1402 */
1403 cb.cb_first = B_TRUE;
1404 if (!cb.cb_doclones &&
1405 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1406 &cb) != 0) {
1407 rv = 1;
1408 goto out;
1409 }
1410
1411 if (cb.cb_error) {
1412 rv = 1;
1413 goto out;
1414 }
1415
1416 cb.cb_batchedsnaps = fnvlist_alloc();
1417 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1418 &cb) != 0) {
1419 rv = 1;
1420 goto out;
1421 }
1422
1423 /*
1424 * Do the real thing. The callback will close the
1425 * handle regardless of whether it succeeds or not.
1426 */
1427 err = destroy_callback(zhp, &cb);
1428 zhp = NULL;
1429 if (err == 0) {
1430 err = zfs_destroy_snaps_nvl(g_zfs,
1431 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1432 }
1433 if (err != 0)
1434 rv = 1;
1435 }
1436
1437 out:
1438 fnvlist_free(cb.cb_batchedsnaps);
1439 fnvlist_free(cb.cb_nvl);
1440 if (zhp != NULL)
1441 zfs_close(zhp);
1442 return (rv);
1443 }
1444
1445 static boolean_t
1446 is_recvd_column(zprop_get_cbdata_t *cbp)
1447 {
1448 int i;
1449 zfs_get_column_t col;
1450
1451 for (i = 0; i < ZFS_GET_NCOLS &&
1452 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1453 if (col == GET_COL_RECVD)
1454 return (B_TRUE);
1455 return (B_FALSE);
1456 }
1457
1458 /*
1459 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1460 * < all | property[,property]... > < fs | snap | vol > ...
1461 *
1462 * -r recurse over any child datasets
1463 * -H scripted mode. Headers are stripped, and fields are separated
1464 * by tabs instead of spaces.
1465 * -o Set of fields to display. One of "name,property,value,
1466 * received,source". Default is "name,property,value,source".
1467 * "all" is an alias for all five.
1468 * -s Set of sources to allow. One of
1469 * "local,default,inherited,received,temporary,none". Default is
1470 * all six.
1471 * -p Display values in parsable (literal) format.
1472 *
1473 * Prints properties for the given datasets. The user can control which
1474 * columns to display as well as which property types to allow.
1475 */
1476
1477 /*
1478 * Invoked to display the properties for a single dataset.
1479 */
1480 static int
1481 get_callback(zfs_handle_t *zhp, void *data)
1482 {
1483 char buf[ZFS_MAXPROPLEN];
1484 char rbuf[ZFS_MAXPROPLEN];
1485 zprop_source_t sourcetype;
1486 char source[ZFS_MAX_DATASET_NAME_LEN];
1487 zprop_get_cbdata_t *cbp = data;
1488 nvlist_t *user_props = zfs_get_user_props(zhp);
1489 zprop_list_t *pl = cbp->cb_proplist;
1490 nvlist_t *propval;
1491 char *strval;
1492 char *sourceval;
1493 boolean_t received = is_recvd_column(cbp);
1494
1495 for (; pl != NULL; pl = pl->pl_next) {
1496 char *recvdval = NULL;
1497 /*
1498 * Skip the special fake placeholder. This will also skip over
1499 * the name property when 'all' is specified.
1500 */
1501 if (pl->pl_prop == ZFS_PROP_NAME &&
1502 pl == cbp->cb_proplist)
1503 continue;
1504
1505 if (pl->pl_prop != ZPROP_INVAL) {
1506 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1507 sizeof (buf), &sourcetype, source,
1508 sizeof (source),
1509 cbp->cb_literal) != 0) {
1510 if (pl->pl_all)
1511 continue;
1512 if (!zfs_prop_valid_for_type(pl->pl_prop,
1513 ZFS_TYPE_DATASET)) {
1514 (void) fprintf(stderr,
1515 gettext("No such property '%s'\n"),
1516 zfs_prop_to_name(pl->pl_prop));
1517 continue;
1518 }
1519 sourcetype = ZPROP_SRC_NONE;
1520 (void) strlcpy(buf, "-", sizeof (buf));
1521 }
1522
1523 if (received && (zfs_prop_get_recvd(zhp,
1524 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1525 cbp->cb_literal) == 0))
1526 recvdval = rbuf;
1527
1528 zprop_print_one_property(zfs_get_name(zhp), cbp,
1529 zfs_prop_to_name(pl->pl_prop),
1530 buf, sourcetype, source, recvdval);
1531 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1532 sourcetype = ZPROP_SRC_LOCAL;
1533
1534 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1535 buf, sizeof (buf), cbp->cb_literal) != 0) {
1536 sourcetype = ZPROP_SRC_NONE;
1537 (void) strlcpy(buf, "-", sizeof (buf));
1538 }
1539
1540 zprop_print_one_property(zfs_get_name(zhp), cbp,
1541 pl->pl_user_prop, buf, sourcetype, source, NULL);
1542 } else if (zfs_prop_written(pl->pl_user_prop)) {
1543 sourcetype = ZPROP_SRC_LOCAL;
1544
1545 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1546 buf, sizeof (buf), cbp->cb_literal) != 0) {
1547 sourcetype = ZPROP_SRC_NONE;
1548 (void) strlcpy(buf, "-", sizeof (buf));
1549 }
1550
1551 zprop_print_one_property(zfs_get_name(zhp), cbp,
1552 pl->pl_user_prop, buf, sourcetype, source, NULL);
1553 } else {
1554 if (nvlist_lookup_nvlist(user_props,
1555 pl->pl_user_prop, &propval) != 0) {
1556 if (pl->pl_all)
1557 continue;
1558 sourcetype = ZPROP_SRC_NONE;
1559 strval = "-";
1560 } else {
1561 verify(nvlist_lookup_string(propval,
1562 ZPROP_VALUE, &strval) == 0);
1563 verify(nvlist_lookup_string(propval,
1564 ZPROP_SOURCE, &sourceval) == 0);
1565
1566 if (strcmp(sourceval,
1567 zfs_get_name(zhp)) == 0) {
1568 sourcetype = ZPROP_SRC_LOCAL;
1569 } else if (strcmp(sourceval,
1570 ZPROP_SOURCE_VAL_RECVD) == 0) {
1571 sourcetype = ZPROP_SRC_RECEIVED;
1572 } else {
1573 sourcetype = ZPROP_SRC_INHERITED;
1574 (void) strlcpy(source,
1575 sourceval, sizeof (source));
1576 }
1577 }
1578
1579 if (received && (zfs_prop_get_recvd(zhp,
1580 pl->pl_user_prop, rbuf, sizeof (rbuf),
1581 cbp->cb_literal) == 0))
1582 recvdval = rbuf;
1583
1584 zprop_print_one_property(zfs_get_name(zhp), cbp,
1585 pl->pl_user_prop, strval, sourcetype,
1586 source, recvdval);
1587 }
1588 }
1589
1590 return (0);
1591 }
1592
1593 static int
1594 zfs_do_get(int argc, char **argv)
1595 {
1596 zprop_get_cbdata_t cb = { 0 };
1597 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1598 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK;
1599 char *value, *fields;
1600 int ret = 0;
1601 int limit = 0;
1602 zprop_list_t fake_name = { 0 };
1603
1604 /*
1605 * Set up default columns and sources.
1606 */
1607 cb.cb_sources = ZPROP_SRC_ALL;
1608 cb.cb_columns[0] = GET_COL_NAME;
1609 cb.cb_columns[1] = GET_COL_PROPERTY;
1610 cb.cb_columns[2] = GET_COL_VALUE;
1611 cb.cb_columns[3] = GET_COL_SOURCE;
1612 cb.cb_type = ZFS_TYPE_DATASET;
1613
1614 /* check options */
1615 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1616 switch (c) {
1617 case 'p':
1618 cb.cb_literal = B_TRUE;
1619 break;
1620 case 'd':
1621 limit = parse_depth(optarg, &flags);
1622 break;
1623 case 'r':
1624 flags |= ZFS_ITER_RECURSE;
1625 break;
1626 case 'H':
1627 cb.cb_scripted = B_TRUE;
1628 break;
1629 case ':':
1630 (void) fprintf(stderr, gettext("missing argument for "
1631 "'%c' option\n"), optopt);
1632 usage(B_FALSE);
1633 break;
1634 case 'o':
1635 /*
1636 * Process the set of columns to display. We zero out
1637 * the structure to give us a blank slate.
1638 */
1639 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1640 i = 0;
1641 while (*optarg != '\0') {
1642 static char *col_subopts[] =
1643 { "name", "property", "value", "received",
1644 "source", "all", NULL };
1645
1646 if (i == ZFS_GET_NCOLS) {
1647 (void) fprintf(stderr, gettext("too "
1648 "many fields given to -o "
1649 "option\n"));
1650 usage(B_FALSE);
1651 }
1652
1653 switch (getsubopt(&optarg, col_subopts,
1654 &value)) {
1655 case 0:
1656 cb.cb_columns[i++] = GET_COL_NAME;
1657 break;
1658 case 1:
1659 cb.cb_columns[i++] = GET_COL_PROPERTY;
1660 break;
1661 case 2:
1662 cb.cb_columns[i++] = GET_COL_VALUE;
1663 break;
1664 case 3:
1665 cb.cb_columns[i++] = GET_COL_RECVD;
1666 flags |= ZFS_ITER_RECVD_PROPS;
1667 break;
1668 case 4:
1669 cb.cb_columns[i++] = GET_COL_SOURCE;
1670 break;
1671 case 5:
1672 if (i > 0) {
1673 (void) fprintf(stderr,
1674 gettext("\"all\" conflicts "
1675 "with specific fields "
1676 "given to -o option\n"));
1677 usage(B_FALSE);
1678 }
1679 cb.cb_columns[0] = GET_COL_NAME;
1680 cb.cb_columns[1] = GET_COL_PROPERTY;
1681 cb.cb_columns[2] = GET_COL_VALUE;
1682 cb.cb_columns[3] = GET_COL_RECVD;
1683 cb.cb_columns[4] = GET_COL_SOURCE;
1684 flags |= ZFS_ITER_RECVD_PROPS;
1685 i = ZFS_GET_NCOLS;
1686 break;
1687 default:
1688 (void) fprintf(stderr,
1689 gettext("invalid column name "
1690 "'%s'\n"), value);
1691 usage(B_FALSE);
1692 }
1693 }
1694 break;
1695
1696 case 's':
1697 cb.cb_sources = 0;
1698 while (*optarg != '\0') {
1699 static char *source_subopts[] = {
1700 "local", "default", "inherited",
1701 "received", "temporary", "none",
1702 NULL };
1703
1704 switch (getsubopt(&optarg, source_subopts,
1705 &value)) {
1706 case 0:
1707 cb.cb_sources |= ZPROP_SRC_LOCAL;
1708 break;
1709 case 1:
1710 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1711 break;
1712 case 2:
1713 cb.cb_sources |= ZPROP_SRC_INHERITED;
1714 break;
1715 case 3:
1716 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1717 break;
1718 case 4:
1719 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1720 break;
1721 case 5:
1722 cb.cb_sources |= ZPROP_SRC_NONE;
1723 break;
1724 default:
1725 (void) fprintf(stderr,
1726 gettext("invalid source "
1727 "'%s'\n"), value);
1728 usage(B_FALSE);
1729 }
1730 }
1731 break;
1732
1733 case 't':
1734 types = 0;
1735 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1736 while (*optarg != '\0') {
1737 static char *type_subopts[] = { "filesystem",
1738 "volume", "snapshot", "bookmark",
1739 "all", NULL };
1740
1741 switch (getsubopt(&optarg, type_subopts,
1742 &value)) {
1743 case 0:
1744 types |= ZFS_TYPE_FILESYSTEM;
1745 break;
1746 case 1:
1747 types |= ZFS_TYPE_VOLUME;
1748 break;
1749 case 2:
1750 types |= ZFS_TYPE_SNAPSHOT;
1751 break;
1752 case 3:
1753 types |= ZFS_TYPE_BOOKMARK;
1754 break;
1755 case 4:
1756 types = ZFS_TYPE_DATASET |
1757 ZFS_TYPE_BOOKMARK;
1758 break;
1759
1760 default:
1761 (void) fprintf(stderr,
1762 gettext("invalid type '%s'\n"),
1763 value);
1764 usage(B_FALSE);
1765 }
1766 }
1767 break;
1768
1769 case '?':
1770 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1771 optopt);
1772 usage(B_FALSE);
1773 }
1774 }
1775
1776 argc -= optind;
1777 argv += optind;
1778
1779 if (argc < 1) {
1780 (void) fprintf(stderr, gettext("missing property "
1781 "argument\n"));
1782 usage(B_FALSE);
1783 }
1784
1785 fields = argv[0];
1786
1787 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1788 != 0)
1789 usage(B_FALSE);
1790
1791 argc--;
1792 argv++;
1793
1794 /*
1795 * As part of zfs_expand_proplist(), we keep track of the maximum column
1796 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1797 * need to know the maximum name length. However, the user likely did
1798 * not specify 'name' as one of the properties to fetch, so we need to
1799 * make sure we always include at least this property for
1800 * print_get_headers() to work properly.
1801 */
1802 if (cb.cb_proplist != NULL) {
1803 fake_name.pl_prop = ZFS_PROP_NAME;
1804 fake_name.pl_width = strlen(gettext("NAME"));
1805 fake_name.pl_next = cb.cb_proplist;
1806 cb.cb_proplist = &fake_name;
1807 }
1808
1809 cb.cb_first = B_TRUE;
1810
1811 /* run for each object */
1812 ret = zfs_for_each(argc, argv, flags, types, NULL,
1813 &cb.cb_proplist, limit, get_callback, &cb);
1814
1815 if (cb.cb_proplist == &fake_name)
1816 zprop_free_list(fake_name.pl_next);
1817 else
1818 zprop_free_list(cb.cb_proplist);
1819
1820 return (ret);
1821 }
1822
1823 /*
1824 * inherit [-rS] <property> <fs|vol> ...
1825 *
1826 * -r Recurse over all children
1827 * -S Revert to received value, if any
1828 *
1829 * For each dataset specified on the command line, inherit the given property
1830 * from its parent. Inheriting a property at the pool level will cause it to
1831 * use the default value. The '-r' flag will recurse over all children, and is
1832 * useful for setting a property on a hierarchy-wide basis, regardless of any
1833 * local modifications for each dataset.
1834 */
1835
1836 typedef struct inherit_cbdata {
1837 const char *cb_propname;
1838 boolean_t cb_received;
1839 } inherit_cbdata_t;
1840
1841 static int
1842 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1843 {
1844 inherit_cbdata_t *cb = data;
1845 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1846
1847 /*
1848 * If we're doing it recursively, then ignore properties that
1849 * are not valid for this type of dataset.
1850 */
1851 if (prop != ZPROP_INVAL &&
1852 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp)))
1853 return (0);
1854
1855 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1856 }
1857
1858 static int
1859 inherit_cb(zfs_handle_t *zhp, void *data)
1860 {
1861 inherit_cbdata_t *cb = data;
1862
1863 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1864 }
1865
1866 static int
1867 zfs_do_inherit(int argc, char **argv)
1868 {
1869 int c;
1870 zfs_prop_t prop;
1871 inherit_cbdata_t cb = { 0 };
1872 char *propname;
1873 int ret = 0;
1874 int flags = 0;
1875 boolean_t received = B_FALSE;
1876
1877 /* check options */
1878 while ((c = getopt(argc, argv, "rS")) != -1) {
1879 switch (c) {
1880 case 'r':
1881 flags |= ZFS_ITER_RECURSE;
1882 break;
1883 case 'S':
1884 received = B_TRUE;
1885 break;
1886 case '?':
1887 default:
1888 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1889 optopt);
1890 usage(B_FALSE);
1891 }
1892 }
1893
1894 argc -= optind;
1895 argv += optind;
1896
1897 /* check number of arguments */
1898 if (argc < 1) {
1899 (void) fprintf(stderr, gettext("missing property argument\n"));
1900 usage(B_FALSE);
1901 }
1902 if (argc < 2) {
1903 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1904 usage(B_FALSE);
1905 }
1906
1907 propname = argv[0];
1908 argc--;
1909 argv++;
1910
1911 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1912 if (zfs_prop_readonly(prop)) {
1913 (void) fprintf(stderr, gettext(
1914 "%s property is read-only\n"),
1915 propname);
1916 return (1);
1917 }
1918 if (!zfs_prop_inheritable(prop) && !received) {
1919 (void) fprintf(stderr, gettext("'%s' property cannot "
1920 "be inherited\n"), propname);
1921 if (prop == ZFS_PROP_QUOTA ||
1922 prop == ZFS_PROP_RESERVATION ||
1923 prop == ZFS_PROP_REFQUOTA ||
1924 prop == ZFS_PROP_REFRESERVATION) {
1925 (void) fprintf(stderr, gettext("use 'zfs set "
1926 "%s=none' to clear\n"), propname);
1927 (void) fprintf(stderr, gettext("use 'zfs "
1928 "inherit -S %s' to revert to received "
1929 "value\n"), propname);
1930 }
1931 return (1);
1932 }
1933 if (received && (prop == ZFS_PROP_VOLSIZE ||
1934 prop == ZFS_PROP_VERSION)) {
1935 (void) fprintf(stderr, gettext("'%s' property cannot "
1936 "be reverted to a received value\n"), propname);
1937 return (1);
1938 }
1939 } else if (!zfs_prop_user(propname)) {
1940 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1941 propname);
1942 usage(B_FALSE);
1943 }
1944
1945 cb.cb_propname = propname;
1946 cb.cb_received = received;
1947
1948 if (flags & ZFS_ITER_RECURSE) {
1949 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1950 NULL, NULL, 0, inherit_recurse_cb, &cb);
1951 } else {
1952 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1953 NULL, NULL, 0, inherit_cb, &cb);
1954 }
1955
1956 return (ret);
1957 }
1958
1959 typedef struct upgrade_cbdata {
1960 uint64_t cb_numupgraded;
1961 uint64_t cb_numsamegraded;
1962 uint64_t cb_numfailed;
1963 uint64_t cb_version;
1964 boolean_t cb_newer;
1965 boolean_t cb_foundone;
1966 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
1967 } upgrade_cbdata_t;
1968
1969 static int
1970 same_pool(zfs_handle_t *zhp, const char *name)
1971 {
1972 int len1 = strcspn(name, "/@");
1973 const char *zhname = zfs_get_name(zhp);
1974 int len2 = strcspn(zhname, "/@");
1975
1976 if (len1 != len2)
1977 return (B_FALSE);
1978 return (strncmp(name, zhname, len1) == 0);
1979 }
1980
1981 static int
1982 upgrade_list_callback(zfs_handle_t *zhp, void *data)
1983 {
1984 upgrade_cbdata_t *cb = data;
1985 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1986
1987 /* list if it's old/new */
1988 if ((!cb->cb_newer && version < ZPL_VERSION) ||
1989 (cb->cb_newer && version > ZPL_VERSION)) {
1990 char *str;
1991 if (cb->cb_newer) {
1992 str = gettext("The following filesystems are "
1993 "formatted using a newer software version and\n"
1994 "cannot be accessed on the current system.\n\n");
1995 } else {
1996 str = gettext("The following filesystems are "
1997 "out of date, and can be upgraded. After being\n"
1998 "upgraded, these filesystems (and any 'zfs send' "
1999 "streams generated from\n"
2000 "subsequent snapshots) will no longer be "
2001 "accessible by older software versions.\n\n");
2002 }
2003
2004 if (!cb->cb_foundone) {
2005 (void) puts(str);
2006 (void) printf(gettext("VER FILESYSTEM\n"));
2007 (void) printf(gettext("--- ------------\n"));
2008 cb->cb_foundone = B_TRUE;
2009 }
2010
2011 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
2012 }
2013
2014 return (0);
2015 }
2016
2017 static int
2018 upgrade_set_callback(zfs_handle_t *zhp, void *data)
2019 {
2020 upgrade_cbdata_t *cb = data;
2021 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2022 int needed_spa_version;
2023 int spa_version;
2024
2025 if (zfs_spa_version(zhp, &spa_version) < 0)
2026 return (-1);
2027
2028 needed_spa_version = zfs_spa_version_map(cb->cb_version);
2029
2030 if (needed_spa_version < 0)
2031 return (-1);
2032
2033 if (spa_version < needed_spa_version) {
2034 /* can't upgrade */
2035 (void) printf(gettext("%s: can not be "
2036 "upgraded; the pool version needs to first "
2037 "be upgraded\nto version %d\n\n"),
2038 zfs_get_name(zhp), needed_spa_version);
2039 cb->cb_numfailed++;
2040 return (0);
2041 }
2042
2043 /* upgrade */
2044 if (version < cb->cb_version) {
2045 char verstr[16];
2046 (void) snprintf(verstr, sizeof (verstr),
2047 "%llu", cb->cb_version);
2048 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
2049 /*
2050 * If they did "zfs upgrade -a", then we could
2051 * be doing ioctls to different pools. We need
2052 * to log this history once to each pool, and bypass
2053 * the normal history logging that happens in main().
2054 */
2055 (void) zpool_log_history(g_zfs, history_str);
2056 log_history = B_FALSE;
2057 }
2058 if (zfs_prop_set(zhp, "version", verstr) == 0)
2059 cb->cb_numupgraded++;
2060 else
2061 cb->cb_numfailed++;
2062 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
2063 } else if (version > cb->cb_version) {
2064 /* can't downgrade */
2065 (void) printf(gettext("%s: can not be downgraded; "
2066 "it is already at version %u\n"),
2067 zfs_get_name(zhp), version);
2068 cb->cb_numfailed++;
2069 } else {
2070 cb->cb_numsamegraded++;
2071 }
2072 return (0);
2073 }
2074
2075 /*
2076 * zfs upgrade
2077 * zfs upgrade -v
2078 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
2079 */
2080 static int
2081 zfs_do_upgrade(int argc, char **argv)
2082 {
2083 boolean_t all = B_FALSE;
2084 boolean_t showversions = B_FALSE;
2085 int ret = 0;
2086 upgrade_cbdata_t cb = { 0 };
2087 char c;
2088 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
2089
2090 /* check options */
2091 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
2092 switch (c) {
2093 case 'r':
2094 flags |= ZFS_ITER_RECURSE;
2095 break;
2096 case 'v':
2097 showversions = B_TRUE;
2098 break;
2099 case 'V':
2100 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2101 optarg, &cb.cb_version) != 0) {
2102 (void) fprintf(stderr,
2103 gettext("invalid version %s\n"), optarg);
2104 usage(B_FALSE);
2105 }
2106 break;
2107 case 'a':
2108 all = B_TRUE;
2109 break;
2110 case '?':
2111 default:
2112 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2113 optopt);
2114 usage(B_FALSE);
2115 }
2116 }
2117
2118 argc -= optind;
2119 argv += optind;
2120
2121 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2122 usage(B_FALSE);
2123 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2124 cb.cb_version || argc))
2125 usage(B_FALSE);
2126 if ((all || argc) && (showversions))
2127 usage(B_FALSE);
2128 if (all && argc)
2129 usage(B_FALSE);
2130
2131 if (showversions) {
2132 /* Show info on available versions. */
2133 (void) printf(gettext("The following filesystem versions are "
2134 "supported:\n\n"));
2135 (void) printf(gettext("VER DESCRIPTION\n"));
2136 (void) printf("--- -----------------------------------------"
2137 "---------------\n");
2138 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2139 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2140 (void) printf(gettext(" 3 Case insensitive and filesystem "
2141 "user identifier (FUID)\n"));
2142 (void) printf(gettext(" 4 userquota, groupquota "
2143 "properties\n"));
2144 (void) printf(gettext(" 5 System attributes\n"));
2145 (void) printf(gettext("\nFor more information on a particular "
2146 "version, including supported releases,\n"));
2147 (void) printf("see the ZFS Administration Guide.\n\n");
2148 ret = 0;
2149 } else if (argc || all) {
2150 /* Upgrade filesystems */
2151 if (cb.cb_version == 0)
2152 cb.cb_version = ZPL_VERSION;
2153 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2154 NULL, NULL, 0, upgrade_set_callback, &cb);
2155 (void) printf(gettext("%llu filesystems upgraded\n"),
2156 cb.cb_numupgraded);
2157 if (cb.cb_numsamegraded) {
2158 (void) printf(gettext("%llu filesystems already at "
2159 "this version\n"),
2160 cb.cb_numsamegraded);
2161 }
2162 if (cb.cb_numfailed != 0)
2163 ret = 1;
2164 } else {
2165 /* List old-version filesytems */
2166 boolean_t found;
2167 (void) printf(gettext("This system is currently running "
2168 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2169
2170 flags |= ZFS_ITER_RECURSE;
2171 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2172 NULL, NULL, 0, upgrade_list_callback, &cb);
2173
2174 found = cb.cb_foundone;
2175 cb.cb_foundone = B_FALSE;
2176 cb.cb_newer = B_TRUE;
2177
2178 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2179 NULL, NULL, 0, upgrade_list_callback, &cb);
2180
2181 if (!cb.cb_foundone && !found) {
2182 (void) printf(gettext("All filesystems are "
2183 "formatted with the current version.\n"));
2184 }
2185 }
2186
2187 return (ret);
2188 }
2189
2190 /*
2191 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2192 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2193 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2194 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2195 *
2196 * -H Scripted mode; elide headers and separate columns by tabs.
2197 * -i Translate SID to POSIX ID.
2198 * -n Print numeric ID instead of user/group name.
2199 * -o Control which fields to display.
2200 * -p Use exact (parsable) numeric output.
2201 * -s Specify sort columns, descending order.
2202 * -S Specify sort columns, ascending order.
2203 * -t Control which object types to display.
2204 *
2205 * Displays space consumed by, and quotas on, each user in the specified
2206 * filesystem or snapshot.
2207 */
2208
2209 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2210 enum us_field_types {
2211 USFIELD_TYPE,
2212 USFIELD_NAME,
2213 USFIELD_USED,
2214 USFIELD_QUOTA
2215 };
2216 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2217 static char *us_field_names[] = { "type", "name", "used", "quota" };
2218 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2219
2220 #define USTYPE_PSX_GRP (1 << 0)
2221 #define USTYPE_PSX_USR (1 << 1)
2222 #define USTYPE_SMB_GRP (1 << 2)
2223 #define USTYPE_SMB_USR (1 << 3)
2224 #define USTYPE_ALL \
2225 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2226
2227 static int us_type_bits[] = {
2228 USTYPE_PSX_GRP,
2229 USTYPE_PSX_USR,
2230 USTYPE_SMB_GRP,
2231 USTYPE_SMB_USR,
2232 USTYPE_ALL
2233 };
2234 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2235 "smbuser", "all" };
2236
2237 typedef struct us_node {
2238 nvlist_t *usn_nvl;
2239 uu_avl_node_t usn_avlnode;
2240 uu_list_node_t usn_listnode;
2241 } us_node_t;
2242
2243 typedef struct us_cbdata {
2244 nvlist_t **cb_nvlp;
2245 uu_avl_pool_t *cb_avl_pool;
2246 uu_avl_t *cb_avl;
2247 boolean_t cb_numname;
2248 boolean_t cb_nicenum;
2249 boolean_t cb_sid2posix;
2250 zfs_userquota_prop_t cb_prop;
2251 zfs_sort_column_t *cb_sortcol;
2252 size_t cb_width[USFIELD_LAST];
2253 } us_cbdata_t;
2254
2255 static boolean_t us_populated = B_FALSE;
2256
2257 typedef struct {
2258 zfs_sort_column_t *si_sortcol;
2259 boolean_t si_numname;
2260 } us_sort_info_t;
2261
2262 static int
2263 us_field_index(char *field)
2264 {
2265 int i;
2266
2267 for (i = 0; i < USFIELD_LAST; i++) {
2268 if (strcmp(field, us_field_names[i]) == 0)
2269 return (i);
2270 }
2271
2272 return (-1);
2273 }
2274
2275 static int
2276 us_compare(const void *larg, const void *rarg, void *unused)
2277 {
2278 const us_node_t *l = larg;
2279 const us_node_t *r = rarg;
2280 us_sort_info_t *si = (us_sort_info_t *)unused;
2281 zfs_sort_column_t *sortcol = si->si_sortcol;
2282 boolean_t numname = si->si_numname;
2283 nvlist_t *lnvl = l->usn_nvl;
2284 nvlist_t *rnvl = r->usn_nvl;
2285 int rc = 0;
2286 boolean_t lvb, rvb;
2287
2288 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2289 char *lvstr = "";
2290 char *rvstr = "";
2291 uint32_t lv32 = 0;
2292 uint32_t rv32 = 0;
2293 uint64_t lv64 = 0;
2294 uint64_t rv64 = 0;
2295 zfs_prop_t prop = sortcol->sc_prop;
2296 const char *propname = NULL;
2297 boolean_t reverse = sortcol->sc_reverse;
2298
2299 switch (prop) {
2300 case ZFS_PROP_TYPE:
2301 propname = "type";
2302 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2303 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2304 if (rv32 != lv32)
2305 rc = (rv32 < lv32) ? 1 : -1;
2306 break;
2307 case ZFS_PROP_NAME:
2308 propname = "name";
2309 if (numname) {
2310 (void) nvlist_lookup_uint64(lnvl, propname,
2311 &lv64);
2312 (void) nvlist_lookup_uint64(rnvl, propname,
2313 &rv64);
2314 if (rv64 != lv64)
2315 rc = (rv64 < lv64) ? 1 : -1;
2316 } else {
2317 (void) nvlist_lookup_string(lnvl, propname,
2318 &lvstr);
2319 (void) nvlist_lookup_string(rnvl, propname,
2320 &rvstr);
2321 rc = strcmp(lvstr, rvstr);
2322 }
2323 break;
2324 case ZFS_PROP_USED:
2325 case ZFS_PROP_QUOTA:
2326 if (!us_populated)
2327 break;
2328 if (prop == ZFS_PROP_USED)
2329 propname = "used";
2330 else
2331 propname = "quota";
2332 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2333 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2334 if (rv64 != lv64)
2335 rc = (rv64 < lv64) ? 1 : -1;
2336 break;
2337
2338 default:
2339 break;
2340 }
2341
2342 if (rc != 0) {
2343 if (rc < 0)
2344 return (reverse ? 1 : -1);
2345 else
2346 return (reverse ? -1 : 1);
2347 }
2348 }
2349
2350 /*
2351 * If entries still seem to be the same, check if they are of the same
2352 * type (smbentity is added only if we are doing SID to POSIX ID
2353 * translation where we can have duplicate type/name combinations).
2354 */
2355 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2356 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2357 lvb != rvb)
2358 return (lvb < rvb ? -1 : 1);
2359
2360 return (0);
2361 }
2362
2363 static inline const char *
2364 us_type2str(unsigned field_type)
2365 {
2366 switch (field_type) {
2367 case USTYPE_PSX_USR:
2368 return ("POSIX User");
2369 case USTYPE_PSX_GRP:
2370 return ("POSIX Group");
2371 case USTYPE_SMB_USR:
2372 return ("SMB User");
2373 case USTYPE_SMB_GRP:
2374 return ("SMB Group");
2375 default:
2376 return ("Undefined");
2377 }
2378 }
2379
2380 static int
2381 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2382 {
2383 us_cbdata_t *cb = (us_cbdata_t *)arg;
2384 zfs_userquota_prop_t prop = cb->cb_prop;
2385 char *name = NULL;
2386 char *propname;
2387 char sizebuf[32];
2388 us_node_t *node;
2389 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2390 uu_avl_t *avl = cb->cb_avl;
2391 uu_avl_index_t idx;
2392 nvlist_t *props;
2393 us_node_t *n;
2394 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2395 unsigned type = 0;
2396 const char *typestr;
2397 size_t namelen;
2398 size_t typelen;
2399 size_t sizelen;
2400 int typeidx, nameidx, sizeidx;
2401 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2402 boolean_t smbentity = B_FALSE;
2403
2404 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2405 nomem();
2406 node = safe_malloc(sizeof (us_node_t));
2407 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2408 node->usn_nvl = props;
2409
2410 if (domain != NULL && domain[0] != '\0') {
2411 /* SMB */
2412 char sid[MAXNAMELEN + 32];
2413 uid_t id;
2414 int err;
2415 int flag = IDMAP_REQ_FLG_USE_CACHE;
2416
2417 smbentity = B_TRUE;
2418
2419 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2420
2421 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2422 type = USTYPE_SMB_GRP;
2423 err = sid_to_id(sid, B_FALSE, &id);
2424 } else {
2425 type = USTYPE_SMB_USR;
2426 err = sid_to_id(sid, B_TRUE, &id);
2427 }
2428
2429 if (err == 0) {
2430 rid = id;
2431 if (!cb->cb_sid2posix) {
2432 if (type == USTYPE_SMB_USR) {
2433 (void) idmap_getwinnamebyuid(rid, flag,
2434 &name, NULL);
2435 } else {
2436 (void) idmap_getwinnamebygid(rid, flag,
2437 &name, NULL);
2438 }
2439 if (name == NULL)
2440 name = sid;
2441 }
2442 }
2443 }
2444
2445 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2446 /* POSIX or -i */
2447 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2448 type = USTYPE_PSX_GRP;
2449 if (!cb->cb_numname) {
2450 struct group *g;
2451
2452 if ((g = getgrgid(rid)) != NULL)
2453 name = g->gr_name;
2454 }
2455 } else {
2456 type = USTYPE_PSX_USR;
2457 if (!cb->cb_numname) {
2458 struct passwd *p;
2459
2460 if ((p = getpwuid(rid)) != NULL)
2461 name = p->pw_name;
2462 }
2463 }
2464 }
2465
2466 /*
2467 * Make sure that the type/name combination is unique when doing
2468 * SID to POSIX ID translation (hence changing the type from SMB to
2469 * POSIX).
2470 */
2471 if (cb->cb_sid2posix &&
2472 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2473 nomem();
2474
2475 /* Calculate/update width of TYPE field */
2476 typestr = us_type2str(type);
2477 typelen = strlen(gettext(typestr));
2478 typeidx = us_field_index("type");
2479 if (typelen > cb->cb_width[typeidx])
2480 cb->cb_width[typeidx] = typelen;
2481 if (nvlist_add_uint32(props, "type", type) != 0)
2482 nomem();
2483
2484 /* Calculate/update width of NAME field */
2485 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2486 if (nvlist_add_uint64(props, "name", rid) != 0)
2487 nomem();
2488 namelen = snprintf(NULL, 0, "%u", rid);
2489 } else {
2490 if (nvlist_add_string(props, "name", name) != 0)
2491 nomem();
2492 namelen = strlen(name);
2493 }
2494 nameidx = us_field_index("name");
2495 if (namelen > cb->cb_width[nameidx])
2496 cb->cb_width[nameidx] = namelen;
2497
2498 /*
2499 * Check if this type/name combination is in the list and update it;
2500 * otherwise add new node to the list.
2501 */
2502 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2503 uu_avl_insert(avl, node, idx);
2504 } else {
2505 nvlist_free(props);
2506 free(node);
2507 node = n;
2508 props = node->usn_nvl;
2509 }
2510
2511 /* Calculate/update width of USED/QUOTA fields */
2512 if (cb->cb_nicenum)
2513 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2514 else
2515 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space);
2516 sizelen = strlen(sizebuf);
2517 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2518 propname = "used";
2519 if (!nvlist_exists(props, "quota"))
2520 (void) nvlist_add_uint64(props, "quota", 0);
2521 } else {
2522 propname = "quota";
2523 if (!nvlist_exists(props, "used"))
2524 (void) nvlist_add_uint64(props, "used", 0);
2525 }
2526 sizeidx = us_field_index(propname);
2527 if (sizelen > cb->cb_width[sizeidx])
2528 cb->cb_width[sizeidx] = sizelen;
2529
2530 if (nvlist_add_uint64(props, propname, space) != 0)
2531 nomem();
2532
2533 return (0);
2534 }
2535
2536 static void
2537 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2538 size_t *width, us_node_t *node)
2539 {
2540 nvlist_t *nvl = node->usn_nvl;
2541 char valstr[MAXNAMELEN];
2542 boolean_t first = B_TRUE;
2543 int cfield = 0;
2544 int field;
2545 uint32_t ustype;
2546
2547 /* Check type */
2548 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2549 if (!(ustype & types))
2550 return;
2551
2552 while ((field = fields[cfield]) != USFIELD_LAST) {
2553 nvpair_t *nvp = NULL;
2554 data_type_t type;
2555 uint32_t val32;
2556 uint64_t val64;
2557 char *strval = NULL;
2558
2559 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2560 if (strcmp(nvpair_name(nvp),
2561 us_field_names[field]) == 0)
2562 break;
2563 }
2564
2565 type = nvpair_type(nvp);
2566 switch (type) {
2567 case DATA_TYPE_UINT32:
2568 (void) nvpair_value_uint32(nvp, &val32);
2569 break;
2570 case DATA_TYPE_UINT64:
2571 (void) nvpair_value_uint64(nvp, &val64);
2572 break;
2573 case DATA_TYPE_STRING:
2574 (void) nvpair_value_string(nvp, &strval);
2575 break;
2576 default:
2577 (void) fprintf(stderr, "invalid data type\n");
2578 }
2579
2580 switch (field) {
2581 case USFIELD_TYPE:
2582 strval = (char *)us_type2str(val32);
2583 break;
2584 case USFIELD_NAME:
2585 if (type == DATA_TYPE_UINT64) {
2586 (void) sprintf(valstr, "%llu", val64);
2587 strval = valstr;
2588 }
2589 break;
2590 case USFIELD_USED:
2591 case USFIELD_QUOTA:
2592 if (type == DATA_TYPE_UINT64) {
2593 if (parsable) {
2594 (void) sprintf(valstr, "%llu", val64);
2595 } else {
2596 zfs_nicenum(val64, valstr,
2597 sizeof (valstr));
2598 }
2599 if (field == USFIELD_QUOTA &&
2600 strcmp(valstr, "0") == 0)
2601 strval = "none";
2602 else
2603 strval = valstr;
2604 }
2605 break;
2606 }
2607
2608 if (!first) {
2609 if (scripted)
2610 (void) printf("\t");
2611 else
2612 (void) printf(" ");
2613 }
2614 if (scripted)
2615 (void) printf("%s", strval);
2616 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2617 (void) printf("%-*s", width[field], strval);
2618 else
2619 (void) printf("%*s", width[field], strval);
2620
2621 first = B_FALSE;
2622 cfield++;
2623 }
2624
2625 (void) printf("\n");
2626 }
2627
2628 static void
2629 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2630 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2631 {
2632 us_node_t *node;
2633 const char *col;
2634 int cfield = 0;
2635 int field;
2636
2637 if (!scripted) {
2638 boolean_t first = B_TRUE;
2639
2640 while ((field = fields[cfield]) != USFIELD_LAST) {
2641 col = gettext(us_field_hdr[field]);
2642 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2643 (void) printf(first ? "%-*s" : " %-*s",
2644 width[field], col);
2645 } else {
2646 (void) printf(first ? "%*s" : " %*s",
2647 width[field], col);
2648 }
2649 first = B_FALSE;
2650 cfield++;
2651 }
2652 (void) printf("\n");
2653 }
2654
2655 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2656 print_us_node(scripted, parsable, fields, types, width, node);
2657 if (rmnode)
2658 nvlist_free(node->usn_nvl);
2659 }
2660 }
2661
2662 static int
2663 zfs_do_userspace(int argc, char **argv)
2664 {
2665 zfs_handle_t *zhp;
2666 zfs_userquota_prop_t p;
2667 uu_avl_pool_t *avl_pool;
2668 uu_avl_t *avl_tree;
2669 uu_avl_walk_t *walk;
2670 char *delim;
2671 char deffields[] = "type,name,used,quota";
2672 char *ofield = NULL;
2673 char *tfield = NULL;
2674 int cfield = 0;
2675 int fields[256];
2676 int i;
2677 boolean_t scripted = B_FALSE;
2678 boolean_t prtnum = B_FALSE;
2679 boolean_t parsable = B_FALSE;
2680 boolean_t sid2posix = B_FALSE;
2681 int ret = 0;
2682 int c;
2683 zfs_sort_column_t *sortcol = NULL;
2684 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2685 us_cbdata_t cb;
2686 us_node_t *node;
2687 us_node_t *rmnode;
2688 uu_list_pool_t *listpool;
2689 uu_list_t *list;
2690 uu_avl_index_t idx = 0;
2691 uu_list_index_t idx2 = 0;
2692
2693 if (argc < 2)
2694 usage(B_FALSE);
2695
2696 if (strcmp(argv[0], "groupspace") == 0)
2697 /* Toggle default group types */
2698 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2699
2700 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2701 switch (c) {
2702 case 'n':
2703 prtnum = B_TRUE;
2704 break;
2705 case 'H':
2706 scripted = B_TRUE;
2707 break;
2708 case 'p':
2709 parsable = B_TRUE;
2710 break;
2711 case 'o':
2712 ofield = optarg;
2713 break;
2714 case 's':
2715 case 'S':
2716 if (zfs_add_sort_column(&sortcol, optarg,
2717 c == 's' ? B_FALSE : B_TRUE) != 0) {
2718 (void) fprintf(stderr,
2719 gettext("invalid field '%s'\n"), optarg);
2720 usage(B_FALSE);
2721 }
2722 break;
2723 case 't':
2724 tfield = optarg;
2725 break;
2726 case 'i':
2727 sid2posix = B_TRUE;
2728 break;
2729 case ':':
2730 (void) fprintf(stderr, gettext("missing argument for "
2731 "'%c' option\n"), optopt);
2732 usage(B_FALSE);
2733 break;
2734 case '?':
2735 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2736 optopt);
2737 usage(B_FALSE);
2738 }
2739 }
2740
2741 argc -= optind;
2742 argv += optind;
2743
2744 if (argc < 1) {
2745 (void) fprintf(stderr, gettext("missing dataset name\n"));
2746 usage(B_FALSE);
2747 }
2748 if (argc > 1) {
2749 (void) fprintf(stderr, gettext("too many arguments\n"));
2750 usage(B_FALSE);
2751 }
2752
2753 /* Use default output fields if not specified using -o */
2754 if (ofield == NULL)
2755 ofield = deffields;
2756 do {
2757 if ((delim = strchr(ofield, ',')) != NULL)
2758 *delim = '\0';
2759 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2760 (void) fprintf(stderr, gettext("invalid type '%s' "
2761 "for -o option\n"), ofield);
2762 return (-1);
2763 }
2764 if (delim != NULL)
2765 ofield = delim + 1;
2766 } while (delim != NULL);
2767 fields[cfield] = USFIELD_LAST;
2768
2769 /* Override output types (-t option) */
2770 if (tfield != NULL) {
2771 types = 0;
2772
2773 do {
2774 boolean_t found = B_FALSE;
2775
2776 if ((delim = strchr(tfield, ',')) != NULL)
2777 *delim = '\0';
2778 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2779 i++) {
2780 if (strcmp(tfield, us_type_names[i]) == 0) {
2781 found = B_TRUE;
2782 types |= us_type_bits[i];
2783 break;
2784 }
2785 }
2786 if (!found) {
2787 (void) fprintf(stderr, gettext("invalid type "
2788 "'%s' for -t option\n"), tfield);
2789 return (-1);
2790 }
2791 if (delim != NULL)
2792 tfield = delim + 1;
2793 } while (delim != NULL);
2794 }
2795
2796 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2797 return (1);
2798
2799 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2800 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2801 nomem();
2802 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2803 nomem();
2804
2805 /* Always add default sorting columns */
2806 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2807 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2808
2809 cb.cb_sortcol = sortcol;
2810 cb.cb_numname = prtnum;
2811 cb.cb_nicenum = !parsable;
2812 cb.cb_avl_pool = avl_pool;
2813 cb.cb_avl = avl_tree;
2814 cb.cb_sid2posix = sid2posix;
2815
2816 for (i = 0; i < USFIELD_LAST; i++)
2817 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2818
2819 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2820 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) &&
2821 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2822 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) &&
2823 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2824 continue;
2825 cb.cb_prop = p;
2826 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2827 return (ret);
2828 }
2829
2830 /* Sort the list */
2831 if ((node = uu_avl_first(avl_tree)) == NULL)
2832 return (0);
2833
2834 us_populated = B_TRUE;
2835
2836 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2837 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2838 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2839 uu_list_node_init(node, &node->usn_listnode, listpool);
2840
2841 while (node != NULL) {
2842 rmnode = node;
2843 node = uu_avl_next(avl_tree, node);
2844 uu_avl_remove(avl_tree, rmnode);
2845 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2846 uu_list_insert(list, rmnode, idx2);
2847 }
2848
2849 for (node = uu_list_first(list); node != NULL;
2850 node = uu_list_next(list, node)) {
2851 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2852
2853 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2854 uu_avl_insert(avl_tree, node, idx);
2855 }
2856
2857 uu_list_destroy(list);
2858 uu_list_pool_destroy(listpool);
2859
2860 /* Print and free node nvlist memory */
2861 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2862 cb.cb_avl);
2863
2864 zfs_free_sort_columns(sortcol);
2865
2866 /* Clean up the AVL tree */
2867 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2868 nomem();
2869
2870 while ((node = uu_avl_walk_next(walk)) != NULL) {
2871 uu_avl_remove(cb.cb_avl, node);
2872 free(node);
2873 }
2874
2875 uu_avl_walk_end(walk);
2876 uu_avl_destroy(avl_tree);
2877 uu_avl_pool_destroy(avl_pool);
2878
2879 return (ret);
2880 }
2881
2882 /*
2883 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ...
2884 * [-t type[,...]] [filesystem|volume|snapshot] ...
2885 *
2886 * -H Scripted mode; elide headers and separate columns by tabs.
2887 * -p Display values in parsable (literal) format.
2888 * -r Recurse over all children.
2889 * -d Limit recursion by depth.
2890 * -o Control which fields to display.
2891 * -s Specify sort columns, descending order.
2892 * -S Specify sort columns, ascending order.
2893 * -t Control which object types to display.
2894 *
2895 * When given no arguments, list all filesystems in the system.
2896 * Otherwise, list the specified datasets, optionally recursing down them if
2897 * '-r' is specified.
2898 */
2899 typedef struct list_cbdata {
2900 boolean_t cb_first;
2901 boolean_t cb_literal;
2902 boolean_t cb_scripted;
2903 zprop_list_t *cb_proplist;
2904 } list_cbdata_t;
2905
2906 /*
2907 * Given a list of columns to display, output appropriate headers for each one.
2908 */
2909 static void
2910 print_header(list_cbdata_t *cb)
2911 {
2912 zprop_list_t *pl = cb->cb_proplist;
2913 char headerbuf[ZFS_MAXPROPLEN];
2914 const char *header;
2915 int i;
2916 boolean_t first = B_TRUE;
2917 boolean_t right_justify;
2918
2919 for (; pl != NULL; pl = pl->pl_next) {
2920 if (!first) {
2921 (void) printf(" ");
2922 } else {
2923 first = B_FALSE;
2924 }
2925
2926 right_justify = B_FALSE;
2927 if (pl->pl_prop != ZPROP_INVAL) {
2928 header = zfs_prop_column_name(pl->pl_prop);
2929 right_justify = zfs_prop_align_right(pl->pl_prop);
2930 } else {
2931 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2932 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2933 headerbuf[i] = '\0';
2934 header = headerbuf;
2935 }
2936
2937 if (pl->pl_next == NULL && !right_justify)
2938 (void) printf("%s", header);
2939 else if (right_justify)
2940 (void) printf("%*s", pl->pl_width, header);
2941 else
2942 (void) printf("%-*s", pl->pl_width, header);
2943 }
2944
2945 (void) printf("\n");
2946 }
2947
2948 /*
2949 * Given a dataset and a list of fields, print out all the properties according
2950 * to the described layout.
2951 */
2952 static void
2953 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
2954 {
2955 zprop_list_t *pl = cb->cb_proplist;
2956 boolean_t first = B_TRUE;
2957 char property[ZFS_MAXPROPLEN];
2958 nvlist_t *userprops = zfs_get_user_props(zhp);
2959 nvlist_t *propval;
2960 char *propstr;
2961 boolean_t right_justify;
2962
2963 for (; pl != NULL; pl = pl->pl_next) {
2964 if (!first) {
2965 if (cb->cb_scripted)
2966 (void) printf("\t");
2967 else
2968 (void) printf(" ");
2969 } else {
2970 first = B_FALSE;
2971 }
2972
2973 if (pl->pl_prop == ZFS_PROP_NAME) {
2974 (void) strlcpy(property, zfs_get_name(zhp),
2975 sizeof (property));
2976 propstr = property;
2977 right_justify = zfs_prop_align_right(pl->pl_prop);
2978 } else if (pl->pl_prop != ZPROP_INVAL) {
2979 if (zfs_prop_get(zhp, pl->pl_prop, property,
2980 sizeof (property), NULL, NULL, 0,
2981 cb->cb_literal) != 0)
2982 propstr = "-";
2983 else
2984 propstr = property;
2985 right_justify = zfs_prop_align_right(pl->pl_prop);
2986 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
2987 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
2988 property, sizeof (property), cb->cb_literal) != 0)
2989 propstr = "-";
2990 else
2991 propstr = property;
2992 right_justify = B_TRUE;
2993 } else if (zfs_prop_written(pl->pl_user_prop)) {
2994 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
2995 property, sizeof (property), cb->cb_literal) != 0)
2996 propstr = "-";
2997 else
2998 propstr = property;
2999 right_justify = B_TRUE;
3000 } else {
3001 if (nvlist_lookup_nvlist(userprops,
3002 pl->pl_user_prop, &propval) != 0)
3003 propstr = "-";
3004 else
3005 verify(nvlist_lookup_string(propval,
3006 ZPROP_VALUE, &propstr) == 0);
3007 right_justify = B_FALSE;
3008 }
3009
3010 /*
3011 * If this is being called in scripted mode, or if this is the
3012 * last column and it is left-justified, don't include a width
3013 * format specifier.
3014 */
3015 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3016 (void) printf("%s", propstr);
3017 else if (right_justify)
3018 (void) printf("%*s", pl->pl_width, propstr);
3019 else
3020 (void) printf("%-*s", pl->pl_width, propstr);
3021 }
3022
3023 (void) printf("\n");
3024 }
3025
3026 /*
3027 * Generic callback function to list a dataset or snapshot.
3028 */
3029 static int
3030 list_callback(zfs_handle_t *zhp, void *data)
3031 {
3032 list_cbdata_t *cbp = data;
3033
3034 if (cbp->cb_first) {
3035 if (!cbp->cb_scripted)
3036 print_header(cbp);
3037 cbp->cb_first = B_FALSE;
3038 }
3039
3040 print_dataset(zhp, cbp);
3041
3042 return (0);
3043 }
3044
3045 static int
3046 zfs_do_list(int argc, char **argv)
3047 {
3048 int c;
3049 static char default_fields[] =
3050 "name,used,available,referenced,mountpoint";
3051 int types = ZFS_TYPE_DATASET;
3052 boolean_t types_specified = B_FALSE;
3053 char *fields = NULL;
3054 list_cbdata_t cb = { 0 };
3055 char *value;
3056 int limit = 0;
3057 int ret = 0;
3058 zfs_sort_column_t *sortcol = NULL;
3059 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3060
3061 /* check options */
3062 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3063 switch (c) {
3064 case 'o':
3065 fields = optarg;
3066 break;
3067 case 'p':
3068 cb.cb_literal = B_TRUE;
3069 flags |= ZFS_ITER_LITERAL_PROPS;
3070 break;
3071 case 'd':
3072 limit = parse_depth(optarg, &flags);
3073 break;
3074 case 'r':
3075 flags |= ZFS_ITER_RECURSE;
3076 break;
3077 case 'H':
3078 cb.cb_scripted = B_TRUE;
3079 break;
3080 case 's':
3081 if (zfs_add_sort_column(&sortcol, optarg,
3082 B_FALSE) != 0) {
3083 (void) fprintf(stderr,
3084 gettext("invalid property '%s'\n"), optarg);
3085 usage(B_FALSE);
3086 }
3087 break;
3088 case 'S':
3089 if (zfs_add_sort_column(&sortcol, optarg,
3090 B_TRUE) != 0) {
3091 (void) fprintf(stderr,
3092 gettext("invalid property '%s'\n"), optarg);
3093 usage(B_FALSE);
3094 }
3095 break;
3096 case 't':
3097 types = 0;
3098 types_specified = B_TRUE;
3099 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3100 while (*optarg != '\0') {
3101 static char *type_subopts[] = { "filesystem",
3102 "volume", "snapshot", "snap", "bookmark",
3103 "all", NULL };
3104
3105 switch (getsubopt(&optarg, type_subopts,
3106 &value)) {
3107 case 0:
3108 types |= ZFS_TYPE_FILESYSTEM;
3109 break;
3110 case 1:
3111 types |= ZFS_TYPE_VOLUME;
3112 break;
3113 case 2:
3114 case 3:
3115 types |= ZFS_TYPE_SNAPSHOT;
3116 break;
3117 case 4:
3118 types |= ZFS_TYPE_BOOKMARK;
3119 break;
3120 case 5:
3121 types = ZFS_TYPE_DATASET |
3122 ZFS_TYPE_BOOKMARK;
3123 break;
3124 default:
3125 (void) fprintf(stderr,
3126 gettext("invalid type '%s'\n"),
3127 value);
3128 usage(B_FALSE);
3129 }
3130 }
3131 break;
3132 case ':':
3133 (void) fprintf(stderr, gettext("missing argument for "
3134 "'%c' option\n"), optopt);
3135 usage(B_FALSE);
3136 break;
3137 case '?':
3138 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3139 optopt);
3140 usage(B_FALSE);
3141 }
3142 }
3143
3144 argc -= optind;
3145 argv += optind;
3146
3147 if (fields == NULL)
3148 fields = default_fields;
3149
3150 /*
3151 * If we are only going to list snapshot names and sort by name,
3152 * then we can use faster version.
3153 */
3154 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3155 flags |= ZFS_ITER_SIMPLE;
3156
3157 /*
3158 * If "-o space" and no types were specified, don't display snapshots.
3159 */
3160 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3161 types &= ~ZFS_TYPE_SNAPSHOT;
3162
3163 /*
3164 * If the user specifies '-o all', the zprop_get_list() doesn't
3165 * normally include the name of the dataset. For 'zfs list', we always
3166 * want this property to be first.
3167 */
3168 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3169 != 0)
3170 usage(B_FALSE);
3171
3172 cb.cb_first = B_TRUE;
3173
3174 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3175 limit, list_callback, &cb);
3176
3177 zprop_free_list(cb.cb_proplist);
3178 zfs_free_sort_columns(sortcol);
3179
3180 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3181 (void) printf(gettext("no datasets available\n"));
3182
3183 return (ret);
3184 }
3185
3186 /*
3187 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3188 * zfs rename [-f] -p <fs | vol> <fs | vol>
3189 * zfs rename -r <snap> <snap>
3190 *
3191 * Renames the given dataset to another of the same type.
3192 *
3193 * The '-p' flag creates all the non-existing ancestors of the target first.
3194 */
3195 /* ARGSUSED */
3196 static int
3197 zfs_do_rename(int argc, char **argv)
3198 {
3199 zfs_handle_t *zhp;
3200 int c;
3201 int ret = 0;
3202 boolean_t recurse = B_FALSE;
3203 boolean_t parents = B_FALSE;
3204 boolean_t force_unmount = B_FALSE;
3205
3206 /* check options */
3207 while ((c = getopt(argc, argv, "prf")) != -1) {
3208 switch (c) {
3209 case 'p':
3210 parents = B_TRUE;
3211 break;
3212 case 'r':
3213 recurse = B_TRUE;
3214 break;
3215 case 'f':
3216 force_unmount = B_TRUE;
3217 break;
3218 case '?':
3219 default:
3220 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3221 optopt);
3222 usage(B_FALSE);
3223 }
3224 }
3225
3226 argc -= optind;
3227 argv += optind;
3228
3229 /* check number of arguments */
3230 if (argc < 1) {
3231 (void) fprintf(stderr, gettext("missing source dataset "
3232 "argument\n"));
3233 usage(B_FALSE);
3234 }
3235 if (argc < 2) {
3236 (void) fprintf(stderr, gettext("missing target dataset "
3237 "argument\n"));
3238 usage(B_FALSE);
3239 }
3240 if (argc > 2) {
3241 (void) fprintf(stderr, gettext("too many arguments\n"));
3242 usage(B_FALSE);
3243 }
3244
3245 if (recurse && parents) {
3246 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3247 "exclusive\n"));
3248 usage(B_FALSE);
3249 }
3250
3251 if (recurse && strchr(argv[0], '@') == 0) {
3252 (void) fprintf(stderr, gettext("source dataset for recursive "
3253 "rename must be a snapshot\n"));
3254 usage(B_FALSE);
3255 }
3256
3257 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3258 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3259 return (1);
3260
3261 /* If we were asked and the name looks good, try to create ancestors. */
3262 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3263 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3264 zfs_close(zhp);
3265 return (1);
3266 }
3267
3268 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3269
3270 zfs_close(zhp);
3271 return (ret);
3272 }
3273
3274 /*
3275 * zfs promote <fs>
3276 *
3277 * Promotes the given clone fs to be the parent
3278 */
3279 /* ARGSUSED */
3280 static int
3281 zfs_do_promote(int argc, char **argv)
3282 {
3283 zfs_handle_t *zhp;
3284 int ret = 0;
3285
3286 /* check options */
3287 if (argc > 1 && argv[1][0] == '-') {
3288 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3289 argv[1][1]);
3290 usage(B_FALSE);
3291 }
3292
3293 /* check number of arguments */
3294 if (argc < 2) {
3295 (void) fprintf(stderr, gettext("missing clone filesystem"
3296 " argument\n"));
3297 usage(B_FALSE);
3298 }
3299 if (argc > 2) {
3300 (void) fprintf(stderr, gettext("too many arguments\n"));
3301 usage(B_FALSE);
3302 }
3303
3304 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3305 if (zhp == NULL)
3306 return (1);
3307
3308 ret = (zfs_promote(zhp) != 0);
3309
3310
3311 zfs_close(zhp);
3312 return (ret);
3313 }
3314
3315 /*
3316 * zfs rollback [-rRf] <snapshot>
3317 *
3318 * -r Delete any intervening snapshots before doing rollback
3319 * -R Delete any snapshots and their clones
3320 * -f ignored for backwards compatability
3321 *
3322 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3323 * since then and making it the active dataset. If more recent snapshots exist,
3324 * the command will complain unless the '-r' flag is given.
3325 */
3326 typedef struct rollback_cbdata {
3327 uint64_t cb_create;
3328 boolean_t cb_first;
3329 int cb_doclones;
3330 char *cb_target;
3331 int cb_error;
3332 boolean_t cb_recurse;
3333 } rollback_cbdata_t;
3334
3335 static int
3336 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3337 {
3338 rollback_cbdata_t *cbp = data;
3339
3340 if (cbp->cb_first && cbp->cb_recurse) {
3341 (void) fprintf(stderr, gettext("cannot rollback to "
3342 "'%s': clones of previous snapshots exist\n"),
3343 cbp->cb_target);
3344 (void) fprintf(stderr, gettext("use '-R' to "
3345 "force deletion of the following clones and "
3346 "dependents:\n"));
3347 cbp->cb_first = 0;
3348 cbp->cb_error = 1;
3349 }
3350
3351 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3352
3353 zfs_close(zhp);
3354 return (0);
3355 }
3356
3357 /*
3358 * Report any snapshots more recent than the one specified. Used when '-r' is
3359 * not specified. We reuse this same callback for the snapshot dependents - if
3360 * 'cb_dependent' is set, then this is a dependent and we should report it
3361 * without checking the transaction group.
3362 */
3363 static int
3364 rollback_check(zfs_handle_t *zhp, void *data)
3365 {
3366 rollback_cbdata_t *cbp = data;
3367
3368 if (cbp->cb_doclones) {
3369 zfs_close(zhp);
3370 return (0);
3371 }
3372
3373 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3374 if (cbp->cb_first && !cbp->cb_recurse) {
3375 (void) fprintf(stderr, gettext("cannot "
3376 "rollback to '%s': more recent snapshots "
3377 "or bookmarks exist\n"),
3378 cbp->cb_target);
3379 (void) fprintf(stderr, gettext("use '-r' to "
3380 "force deletion of the following "
3381 "snapshots and bookmarks:\n"));
3382 cbp->cb_first = 0;
3383 cbp->cb_error = 1;
3384 }
3385
3386 if (cbp->cb_recurse) {
3387 if (zfs_iter_dependents(zhp, B_TRUE,
3388 rollback_check_dependent, cbp) != 0) {
3389 zfs_close(zhp);
3390 return (-1);
3391 }
3392 } else {
3393 (void) fprintf(stderr, "%s\n",
3394 zfs_get_name(zhp));
3395 }
3396 }
3397 zfs_close(zhp);
3398 return (0);
3399 }
3400
3401 static int
3402 zfs_do_rollback(int argc, char **argv)
3403 {
3404 int ret = 0;
3405 int c;
3406 boolean_t force = B_FALSE;
3407 rollback_cbdata_t cb = { 0 };
3408 zfs_handle_t *zhp, *snap;
3409 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3410 char *delim;
3411
3412 /* check options */
3413 while ((c = getopt(argc, argv, "rRf")) != -1) {
3414 switch (c) {
3415 case 'r':
3416 cb.cb_recurse = 1;
3417 break;
3418 case 'R':
3419 cb.cb_recurse = 1;
3420 cb.cb_doclones = 1;
3421 break;
3422 case 'f':
3423 force = B_TRUE;
3424 break;
3425 case '?':
3426 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3427 optopt);
3428 usage(B_FALSE);
3429 }
3430 }
3431
3432 argc -= optind;
3433 argv += optind;
3434
3435 /* check number of arguments */
3436 if (argc < 1) {
3437 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3438 usage(B_FALSE);
3439 }
3440 if (argc > 1) {
3441 (void) fprintf(stderr, gettext("too many arguments\n"));
3442 usage(B_FALSE);
3443 }
3444
3445 /* open the snapshot */
3446 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3447 return (1);
3448
3449 /* open the parent dataset */
3450 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3451 verify((delim = strrchr(parentname, '@')) != NULL);
3452 *delim = '\0';
3453 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3454 zfs_close(snap);
3455 return (1);
3456 }
3457
3458 /*
3459 * Check for more recent snapshots and/or clones based on the presence
3460 * of '-r' and '-R'.
3461 */
3462 cb.cb_target = argv[0];
3463 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3464 cb.cb_first = B_TRUE;
3465 cb.cb_error = 0;
3466 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3467 goto out;
3468 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3469 goto out;
3470
3471 if ((ret = cb.cb_error) != 0)
3472 goto out;
3473
3474 /*
3475 * Rollback parent to the given snapshot.
3476 */
3477 ret = zfs_rollback(zhp, snap, force);
3478
3479 out:
3480 zfs_close(snap);
3481 zfs_close(zhp);
3482
3483 if (ret == 0)
3484 return (0);
3485 else
3486 return (1);
3487 }
3488
3489 /*
3490 * zfs set property=value ... { fs | snap | vol } ...
3491 *
3492 * Sets the given properties for all datasets specified on the command line.
3493 */
3494
3495 static int
3496 set_callback(zfs_handle_t *zhp, void *data)
3497 {
3498 nvlist_t *props = data;
3499
3500 if (zfs_prop_set_list(zhp, props) != 0) {
3501 switch (libzfs_errno(g_zfs)) {
3502 case EZFS_MOUNTFAILED:
3503 (void) fprintf(stderr, gettext("property may be set "
3504 "but unable to remount filesystem\n"));
3505 break;
3506 case EZFS_SHARENFSFAILED:
3507 (void) fprintf(stderr, gettext("property may be set "
3508 "but unable to reshare filesystem\n"));
3509 break;
3510 }
3511 return (1);
3512 }
3513 return (0);
3514 }
3515
3516 static int
3517 zfs_do_set(int argc, char **argv)
3518 {
3519 nvlist_t *props = NULL;
3520 int ds_start = -1; /* argv idx of first dataset arg */
3521 int ret = 0;
3522
3523 /* check for options */
3524 if (argc > 1 && argv[1][0] == '-') {
3525 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3526 argv[1][1]);
3527 usage(B_FALSE);
3528 }
3529
3530 /* check number of arguments */
3531 if (argc < 2) {
3532 (void) fprintf(stderr, gettext("missing arguments\n"));
3533 usage(B_FALSE);
3534 }
3535 if (argc < 3) {
3536 if (strchr(argv[1], '=') == NULL) {
3537 (void) fprintf(stderr, gettext("missing property=value "
3538 "argument(s)\n"));
3539 } else {
3540 (void) fprintf(stderr, gettext("missing dataset "
3541 "name(s)\n"));
3542 }
3543 usage(B_FALSE);
3544 }
3545
3546 /* validate argument order: prop=val args followed by dataset args */
3547 for (int i = 1; i < argc; i++) {
3548 if (strchr(argv[i], '=') != NULL) {
3549 if (ds_start > 0) {
3550 /* out-of-order prop=val argument */
3551 (void) fprintf(stderr, gettext("invalid "
3552 "argument order\n"), i);
3553 usage(B_FALSE);
3554 }
3555 } else if (ds_start < 0) {
3556 ds_start = i;
3557 }
3558 }
3559 if (ds_start < 0) {
3560 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3561 usage(B_FALSE);
3562 }
3563
3564 /* Populate a list of property settings */
3565 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3566 nomem();
3567 for (int i = 1; i < ds_start; i++) {
3568 if ((ret = parseprop(props, argv[i])) != 0)
3569 goto error;
3570 }
3571
3572 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3573 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3574
3575 error:
3576 nvlist_free(props);
3577 return (ret);
3578 }
3579
3580 typedef struct snap_cbdata {
3581 nvlist_t *sd_nvl;
3582 boolean_t sd_recursive;
3583 const char *sd_snapname;
3584 } snap_cbdata_t;
3585
3586 static int
3587 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3588 {
3589 snap_cbdata_t *sd = arg;
3590 char *name;
3591 int rv = 0;
3592 int error;
3593
3594 if (sd->sd_recursive &&
3595 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3596 zfs_close(zhp);
3597 return (0);
3598 }
3599
3600 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3601 if (error == -1)
3602 nomem();
3603 fnvlist_add_boolean(sd->sd_nvl, name);
3604 free(name);
3605
3606 if (sd->sd_recursive)
3607 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3608 zfs_close(zhp);
3609 return (rv);
3610 }
3611
3612 /*
3613 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3614 *
3615 * Creates a snapshot with the given name. While functionally equivalent to
3616 * 'zfs create', it is a separate command to differentiate intent.
3617 */
3618 static int
3619 zfs_do_snapshot(int argc, char **argv)
3620 {
3621 int ret = 0;
3622 char c;
3623 nvlist_t *props;
3624 snap_cbdata_t sd = { 0 };
3625 boolean_t multiple_snaps = B_FALSE;
3626
3627 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3628 nomem();
3629 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3630 nomem();
3631
3632 /* check options */
3633 while ((c = getopt(argc, argv, "ro:")) != -1) {
3634 switch (c) {
3635 case 'o':
3636 if (parseprop(props, optarg) != 0)
3637 return (1);
3638 break;
3639 case 'r':
3640 sd.sd_recursive = B_TRUE;
3641 multiple_snaps = B_TRUE;
3642 break;
3643 case '?':
3644 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3645 optopt);
3646 goto usage;
3647 }
3648 }
3649
3650 argc -= optind;
3651 argv += optind;
3652
3653 /* check number of arguments */
3654 if (argc < 1) {
3655 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3656 goto usage;
3657 }
3658
3659 if (argc > 1)
3660 multiple_snaps = B_TRUE;
3661 for (; argc > 0; argc--, argv++) {
3662 char *atp;
3663 zfs_handle_t *zhp;
3664
3665 atp = strchr(argv[0], '@');
3666 if (atp == NULL)
3667 goto usage;
3668 *atp = '\0';
3669 sd.sd_snapname = atp + 1;
3670 zhp = zfs_open(g_zfs, argv[0],
3671 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3672 if (zhp == NULL)
3673 goto usage;
3674 if (zfs_snapshot_cb(zhp, &sd) != 0)
3675 goto usage;
3676 }
3677
3678 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3679 nvlist_free(sd.sd_nvl);
3680 nvlist_free(props);
3681 if (ret != 0 && multiple_snaps)
3682 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3683 return (ret != 0);
3684
3685 usage:
3686 nvlist_free(sd.sd_nvl);
3687 nvlist_free(props);
3688 usage(B_FALSE);
3689 return (-1);
3690 }
3691
3692 /*
3693 * Send a backup stream to stdout.
3694 */
3695 static int
3696 zfs_do_send(int argc, char **argv)
3697 {
3698 char *fromname = NULL;
3699 char *toname = NULL;
3700 char *resume_token = NULL;
3701 char *cp;
3702 zfs_handle_t *zhp;
3703 sendflags_t flags = { 0 };
3704 int c, err;
3705 nvlist_t *dbgnv = NULL;
3706 boolean_t extraverbose = B_FALSE;
3707
3708 struct option long_options[] = {
3709 {"replicate", no_argument, NULL, 'R'},
3710 {"props", no_argument, NULL, 'p'},
3711 {"parsable", no_argument, NULL, 'P'},
3712 {"dedup", no_argument, NULL, 'D'},
3713 {"verbose", no_argument, NULL, 'v'},
3714 {"dryrun", no_argument, NULL, 'n'},
3715 {"large-block", no_argument, NULL, 'L'},
3716 {"embed", no_argument, NULL, 'e'},
3717 {"resume", required_argument, NULL, 't'},
3718 {"compressed", no_argument, NULL, 'c'},
3719 {0, 0, 0, 0}
3720 };
3721
3722 /* check options */
3723 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options,
3724 NULL)) != -1) {
3725 switch (c) {
3726 case 'i':
3727 if (fromname)
3728 usage(B_FALSE);
3729 fromname = optarg;
3730 break;
3731 case 'I':
3732 if (fromname)
3733 usage(B_FALSE);
3734 fromname = optarg;
3735 flags.doall = B_TRUE;
3736 break;
3737 case 'R':
3738 flags.replicate = B_TRUE;
3739 break;
3740 case 'p':
3741 flags.props = B_TRUE;
3742 break;
3743 case 'P':
3744 flags.parsable = B_TRUE;
3745 flags.verbose = B_TRUE;
3746 break;
3747 case 'v':
3748 if (flags.verbose)
3749 extraverbose = B_TRUE;
3750 flags.verbose = B_TRUE;
3751 flags.progress = B_TRUE;
3752 break;
3753 case 'D':
3754 flags.dedup = B_TRUE;
3755 break;
3756 case 'n':
3757 flags.dryrun = B_TRUE;
3758 break;
3759 case 'L':
3760 flags.largeblock = B_TRUE;
3761 break;
3762 case 'e':
3763 flags.embed_data = B_TRUE;
3764 break;
3765 case 't':
3766 resume_token = optarg;
3767 break;
3768 case 'c':
3769 flags.compress = B_TRUE;
3770 break;
3771 case ':':
3772 /*
3773 * If a parameter was not passed, optopt contains the
3774 * value that would normally lead us into the
3775 * appropriate case statement. If it's > 256, then this
3776 * must be a longopt and we should look at argv to get
3777 * the string. Otherwise it's just the character, so we
3778 * should use it directly.
3779 */
3780 if (optopt <= UINT8_MAX) {
3781 (void) fprintf(stderr,
3782 gettext("missing argument for '%c' "
3783 "option\n"), optopt);
3784 } else {
3785 (void) fprintf(stderr,
3786 gettext("missing argument for '%s' "
3787 "option\n"), argv[optind - 1]);
3788 }
3789 usage(B_FALSE);
3790 break;
3791 case '?':
3792 /*FALLTHROUGH*/
3793 default:
3794 /*
3795 * If an invalid flag was passed, optopt contains the
3796 * character if it was a short flag, or 0 if it was a
3797 * longopt.
3798 */
3799 if (optopt != 0) {
3800 (void) fprintf(stderr,
3801 gettext("invalid option '%c'\n"), optopt);
3802 } else {
3803 (void) fprintf(stderr,
3804 gettext("invalid option '%s'\n"),
3805 argv[optind - 1]);
3806
3807 }
3808 usage(B_FALSE);
3809 }
3810 }
3811
3812 argc -= optind;
3813 argv += optind;
3814
3815 if (resume_token != NULL) {
3816 if (fromname != NULL || flags.replicate || flags.props ||
3817 flags.dedup) {
3818 (void) fprintf(stderr,
3819 gettext("invalid flags combined with -t\n"));
3820 usage(B_FALSE);
3821 }
3822 if (argc != 0) {
3823 (void) fprintf(stderr, gettext("no additional "
3824 "arguments are permitted with -t\n"));
3825 usage(B_FALSE);
3826 }
3827 } else {
3828 if (argc < 1) {
3829 (void) fprintf(stderr,
3830 gettext("missing snapshot argument\n"));
3831 usage(B_FALSE);
3832 }
3833 if (argc > 1) {
3834 (void) fprintf(stderr, gettext("too many arguments\n"));
3835 usage(B_FALSE);
3836 }
3837 }
3838
3839 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
3840 (void) fprintf(stderr,
3841 gettext("Error: Stream can not be written to a terminal.\n"
3842 "You must redirect standard output.\n"));
3843 return (1);
3844 }
3845
3846 if (resume_token != NULL) {
3847 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
3848 resume_token));
3849 }
3850
3851 /*
3852 * Special case sending a filesystem, or from a bookmark.
3853 */
3854 if (strchr(argv[0], '@') == NULL ||
3855 (fromname && strchr(fromname, '#') != NULL)) {
3856 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
3857 enum lzc_send_flags lzc_flags = 0;
3858
3859 if (flags.replicate || flags.doall || flags.props ||
3860 flags.dedup || flags.dryrun || flags.verbose ||
3861 flags.progress) {
3862 (void) fprintf(stderr,
3863 gettext("Error: "
3864 "Unsupported flag with filesystem or bookmark.\n"));
3865 return (1);
3866 }
3867
3868 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
3869 if (zhp == NULL)
3870 return (1);
3871
3872 if (flags.largeblock)
3873 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
3874 if (flags.embed_data)
3875 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
3876 if (flags.compress)
3877 lzc_flags |= LZC_SEND_FLAG_COMPRESS;
3878
3879 if (fromname != NULL &&
3880 (fromname[0] == '#' || fromname[0] == '@')) {
3881 /*
3882 * Incremental source name begins with # or @.
3883 * Default to same fs as target.
3884 */
3885 (void) strncpy(frombuf, argv[0], sizeof (frombuf));
3886 cp = strchr(frombuf, '@');
3887 if (cp != NULL)
3888 *cp = '\0';
3889 (void) strlcat(frombuf, fromname, sizeof (frombuf));
3890 fromname = frombuf;
3891 }
3892 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags);
3893 zfs_close(zhp);
3894 return (err != 0);
3895 }
3896
3897 cp = strchr(argv[0], '@');
3898 *cp = '\0';
3899 toname = cp + 1;
3900 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3901 if (zhp == NULL)
3902 return (1);
3903
3904 /*
3905 * If they specified the full path to the snapshot, chop off
3906 * everything except the short name of the snapshot, but special
3907 * case if they specify the origin.
3908 */
3909 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3910 char origin[ZFS_MAX_DATASET_NAME_LEN];
3911 zprop_source_t src;
3912
3913 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3914 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3915
3916 if (strcmp(origin, fromname) == 0) {
3917 fromname = NULL;
3918 flags.fromorigin = B_TRUE;
3919 } else {
3920 *cp = '\0';
3921 if (cp != fromname && strcmp(argv[0], fromname)) {
3922 (void) fprintf(stderr,
3923 gettext("incremental source must be "
3924 "in same filesystem\n"));
3925 usage(B_FALSE);
3926 }
3927 fromname = cp + 1;
3928 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3929 (void) fprintf(stderr,
3930 gettext("invalid incremental source\n"));
3931 usage(B_FALSE);
3932 }
3933 }
3934 }
3935
3936 if (flags.replicate && fromname == NULL)
3937 flags.doall = B_TRUE;
3938
3939 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
3940 extraverbose ? &dbgnv : NULL);
3941
3942 if (extraverbose && dbgnv != NULL) {
3943 /*
3944 * dump_nvlist prints to stdout, but that's been
3945 * redirected to a file. Make it print to stderr
3946 * instead.
3947 */
3948 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3949 dump_nvlist(dbgnv, 0);
3950 nvlist_free(dbgnv);
3951 }
3952 zfs_close(zhp);
3953
3954 return (err != 0);
3955 }
3956
3957 /*
3958 * Restore a backup stream from stdin.
3959 */
3960 static int
3961 zfs_do_receive(int argc, char **argv)
3962 {
3963 int c, err = 0;
3964 recvflags_t flags = { 0 };
3965 boolean_t abort_resumable = B_FALSE;
3966
3967 nvlist_t *props;
3968 nvpair_t *nvp = NULL;
3969
3970 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3971 nomem();
3972
3973 /* check options */
3974 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) {
3975 switch (c) {
3976 case 'o':
3977 if (parseprop(props, optarg) != 0)
3978 return (1);
3979 break;
3980 case 'd':
3981 flags.isprefix = B_TRUE;
3982 break;
3983 case 'e':
3984 flags.isprefix = B_TRUE;
3985 flags.istail = B_TRUE;
3986 break;
3987 case 'n':
3988 flags.dryrun = B_TRUE;
3989 break;
3990 case 'u':
3991 flags.nomount = B_TRUE;
3992 break;
3993 case 'v':
3994 flags.verbose = B_TRUE;
3995 break;
3996 case 's':
3997 flags.resumable = B_TRUE;
3998 break;
3999 case 'F':
4000 flags.force = B_TRUE;
4001 break;
4002 case 'A':
4003 abort_resumable = B_TRUE;
4004 break;
4005 case ':':
4006 (void) fprintf(stderr, gettext("missing argument for "
4007 "'%c' option\n"), optopt);
4008 usage(B_FALSE);
4009 break;
4010 case '?':
4011 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4012 optopt);
4013 usage(B_FALSE);
4014 }
4015 }
4016
4017 argc -= optind;
4018 argv += optind;
4019
4020 /* check number of arguments */
4021 if (argc < 1) {
4022 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4023 usage(B_FALSE);
4024 }
4025 if (argc > 1) {
4026 (void) fprintf(stderr, gettext("too many arguments\n"));
4027 usage(B_FALSE);
4028 }
4029
4030 while ((nvp = nvlist_next_nvpair(props, nvp))) {
4031 if (strcmp(nvpair_name(nvp), "origin") != 0) {
4032 (void) fprintf(stderr, gettext("invalid option"));
4033 usage(B_FALSE);
4034 }
4035 }
4036
4037 if (abort_resumable) {
4038 if (flags.isprefix || flags.istail || flags.dryrun ||
4039 flags.resumable || flags.nomount) {
4040 (void) fprintf(stderr, gettext("invalid option"));
4041 usage(B_FALSE);
4042 }
4043
4044 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4045 (void) snprintf(namebuf, sizeof (namebuf),
4046 "%s/%%recv", argv[0]);
4047
4048 if (zfs_dataset_exists(g_zfs, namebuf,
4049 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4050 zfs_handle_t *zhp = zfs_open(g_zfs,
4051 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4052 if (zhp == NULL)
4053 return (1);
4054 err = zfs_destroy(zhp, B_FALSE);
4055 } else {
4056 zfs_handle_t *zhp = zfs_open(g_zfs,
4057 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4058 if (zhp == NULL)
4059 usage(B_FALSE);
4060 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4061 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4062 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4063 (void) fprintf(stderr,
4064 gettext("'%s' does not have any "
4065 "resumable receive state to abort\n"),
4066 argv[0]);
4067 return (1);
4068 }
4069 err = zfs_destroy(zhp, B_FALSE);
4070 }
4071
4072 return (err != 0);
4073 }
4074
4075 if (isatty(STDIN_FILENO)) {
4076 (void) fprintf(stderr,
4077 gettext("Error: Backup stream can not be read "
4078 "from a terminal.\n"
4079 "You must redirect standard input.\n"));
4080 return (1);
4081 }
4082 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4083
4084 return (err != 0);
4085 }
4086
4087 /*
4088 * allow/unallow stuff
4089 */
4090 /* copied from zfs/sys/dsl_deleg.h */
4091 #define ZFS_DELEG_PERM_CREATE "create"
4092 #define ZFS_DELEG_PERM_DESTROY "destroy"
4093 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4094 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4095 #define ZFS_DELEG_PERM_CLONE "clone"
4096 #define ZFS_DELEG_PERM_PROMOTE "promote"
4097 #define ZFS_DELEG_PERM_RENAME "rename"
4098 #define ZFS_DELEG_PERM_MOUNT "mount"
4099 #define ZFS_DELEG_PERM_SHARE "share"
4100 #define ZFS_DELEG_PERM_SEND "send"
4101 #define ZFS_DELEG_PERM_RECEIVE "receive"
4102 #define ZFS_DELEG_PERM_ALLOW "allow"
4103 #define ZFS_DELEG_PERM_USERPROP "userprop"
4104 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4105 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4106 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4107 #define ZFS_DELEG_PERM_USERUSED "userused"
4108 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4109 #define ZFS_DELEG_PERM_HOLD "hold"
4110 #define ZFS_DELEG_PERM_RELEASE "release"
4111 #define ZFS_DELEG_PERM_DIFF "diff"
4112 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4113
4114 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4115
4116 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4117 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4118 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4119 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4120 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4121 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4122 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4123 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4124 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4125 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4126 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4127 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4128 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4129 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4130 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4131 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4132 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4133
4134 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4135 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4136 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4137 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4138 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4139 { NULL, ZFS_DELEG_NOTE_NONE }
4140 };
4141
4142 /* permission structure */
4143 typedef struct deleg_perm {
4144 zfs_deleg_who_type_t dp_who_type;
4145 const char *dp_name;
4146 boolean_t dp_local;
4147 boolean_t dp_descend;
4148 } deleg_perm_t;
4149
4150 /* */
4151 typedef struct deleg_perm_node {
4152 deleg_perm_t dpn_perm;
4153
4154 uu_avl_node_t dpn_avl_node;
4155 } deleg_perm_node_t;
4156
4157 typedef struct fs_perm fs_perm_t;
4158
4159 /* permissions set */
4160 typedef struct who_perm {
4161 zfs_deleg_who_type_t who_type;
4162 const char *who_name; /* id */
4163 char who_ug_name[256]; /* user/group name */
4164 fs_perm_t *who_fsperm; /* uplink */
4165
4166 uu_avl_t *who_deleg_perm_avl; /* permissions */
4167 } who_perm_t;
4168
4169 /* */
4170 typedef struct who_perm_node {
4171 who_perm_t who_perm;
4172 uu_avl_node_t who_avl_node;
4173 } who_perm_node_t;
4174
4175 typedef struct fs_perm_set fs_perm_set_t;
4176 /* fs permissions */
4177 struct fs_perm {
4178 const char *fsp_name;
4179
4180 uu_avl_t *fsp_sc_avl; /* sets,create */
4181 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4182
4183 fs_perm_set_t *fsp_set; /* uplink */
4184 };
4185
4186 /* */
4187 typedef struct fs_perm_node {
4188 fs_perm_t fspn_fsperm;
4189 uu_avl_t *fspn_avl;
4190
4191 uu_list_node_t fspn_list_node;
4192 } fs_perm_node_t;
4193
4194 /* top level structure */
4195 struct fs_perm_set {
4196 uu_list_pool_t *fsps_list_pool;
4197 uu_list_t *fsps_list; /* list of fs_perms */
4198
4199 uu_avl_pool_t *fsps_named_set_avl_pool;
4200 uu_avl_pool_t *fsps_who_perm_avl_pool;
4201 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4202 };
4203
4204 static inline const char *
4205 deleg_perm_type(zfs_deleg_note_t note)
4206 {
4207 /* subcommands */
4208 switch (note) {
4209 /* SUBCOMMANDS */
4210 /* OTHER */
4211 case ZFS_DELEG_NOTE_GROUPQUOTA:
4212 case ZFS_DELEG_NOTE_GROUPUSED:
4213 case ZFS_DELEG_NOTE_USERPROP:
4214 case ZFS_DELEG_NOTE_USERQUOTA:
4215 case ZFS_DELEG_NOTE_USERUSED:
4216 /* other */
4217 return (gettext("other"));
4218 default:
4219 return (gettext("subcommand"));
4220 }
4221 }
4222
4223 static int
4224 who_type2weight(zfs_deleg_who_type_t who_type)
4225 {
4226 int res;
4227 switch (who_type) {
4228 case ZFS_DELEG_NAMED_SET_SETS:
4229 case ZFS_DELEG_NAMED_SET:
4230 res = 0;
4231 break;
4232 case ZFS_DELEG_CREATE_SETS:
4233 case ZFS_DELEG_CREATE:
4234 res = 1;
4235 break;
4236 case ZFS_DELEG_USER_SETS:
4237 case ZFS_DELEG_USER:
4238 res = 2;
4239 break;
4240 case ZFS_DELEG_GROUP_SETS:
4241 case ZFS_DELEG_GROUP:
4242 res = 3;
4243 break;
4244 case ZFS_DELEG_EVERYONE_SETS:
4245 case ZFS_DELEG_EVERYONE:
4246 res = 4;
4247 break;
4248 default:
4249 res = -1;
4250 }
4251
4252 return (res);
4253 }
4254
4255 /* ARGSUSED */
4256 static int
4257 who_perm_compare(const void *larg, const void *rarg, void *unused)
4258 {
4259 const who_perm_node_t *l = larg;
4260 const who_perm_node_t *r = rarg;
4261 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4262 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4263 int lweight = who_type2weight(ltype);
4264 int rweight = who_type2weight(rtype);
4265 int res = lweight - rweight;
4266 if (res == 0)
4267 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4268 ZFS_MAX_DELEG_NAME-1);
4269
4270 if (res == 0)
4271 return (0);
4272 if (res > 0)
4273 return (1);
4274 else
4275 return (-1);
4276 }
4277
4278 /* ARGSUSED */
4279 static int
4280 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4281 {
4282 const deleg_perm_node_t *l = larg;
4283 const deleg_perm_node_t *r = rarg;
4284 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4285 ZFS_MAX_DELEG_NAME-1);
4286
4287 if (res == 0)
4288 return (0);
4289
4290 if (res > 0)
4291 return (1);
4292 else
4293 return (-1);
4294 }
4295
4296 static inline void
4297 fs_perm_set_init(fs_perm_set_t *fspset)
4298 {
4299 bzero(fspset, sizeof (fs_perm_set_t));
4300
4301 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4302 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4303 NULL, UU_DEFAULT)) == NULL)
4304 nomem();
4305 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4306 UU_DEFAULT)) == NULL)
4307 nomem();
4308
4309 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4310 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4311 who_perm_node_t, who_avl_node), who_perm_compare,
4312 UU_DEFAULT)) == NULL)
4313 nomem();
4314
4315 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4316 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4317 who_perm_node_t, who_avl_node), who_perm_compare,
4318 UU_DEFAULT)) == NULL)
4319 nomem();
4320
4321 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4322 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4323 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4324 == NULL)
4325 nomem();
4326 }
4327
4328 static inline void fs_perm_fini(fs_perm_t *);
4329 static inline void who_perm_fini(who_perm_t *);
4330
4331 static inline void
4332 fs_perm_set_fini(fs_perm_set_t *fspset)
4333 {
4334 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4335
4336 while (node != NULL) {
4337 fs_perm_node_t *next_node =
4338 uu_list_next(fspset->fsps_list, node);
4339 fs_perm_t *fsperm = &node->fspn_fsperm;
4340 fs_perm_fini(fsperm);
4341 uu_list_remove(fspset->fsps_list, node);
4342 free(node);
4343 node = next_node;
4344 }
4345
4346 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4347 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4348 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4349 }
4350
4351 static inline void
4352 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4353 const char *name)
4354 {
4355 deleg_perm->dp_who_type = type;
4356 deleg_perm->dp_name = name;
4357 }
4358
4359 static inline void
4360 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4361 zfs_deleg_who_type_t type, const char *name)
4362 {
4363 uu_avl_pool_t *pool;
4364 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4365
4366 bzero(who_perm, sizeof (who_perm_t));
4367
4368 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4369 UU_DEFAULT)) == NULL)
4370 nomem();
4371
4372 who_perm->who_type = type;
4373 who_perm->who_name = name;
4374 who_perm->who_fsperm = fsperm;
4375 }
4376
4377 static inline void
4378 who_perm_fini(who_perm_t *who_perm)
4379 {
4380 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4381
4382 while (node != NULL) {
4383 deleg_perm_node_t *next_node =
4384 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4385
4386 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4387 free(node);
4388 node = next_node;
4389 }
4390
4391 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4392 }
4393
4394 static inline void
4395 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4396 {
4397 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4398 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4399
4400 bzero(fsperm, sizeof (fs_perm_t));
4401
4402 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4403 == NULL)
4404 nomem();
4405
4406 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4407 == NULL)
4408 nomem();
4409
4410 fsperm->fsp_set = fspset;
4411 fsperm->fsp_name = fsname;
4412 }
4413
4414 static inline void
4415 fs_perm_fini(fs_perm_t *fsperm)
4416 {
4417 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4418 while (node != NULL) {
4419 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4420 node);
4421 who_perm_t *who_perm = &node->who_perm;
4422 who_perm_fini(who_perm);
4423 uu_avl_remove(fsperm->fsp_sc_avl, node);
4424 free(node);
4425 node = next_node;
4426 }
4427
4428 node = uu_avl_first(fsperm->fsp_uge_avl);
4429 while (node != NULL) {
4430 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4431 node);
4432 who_perm_t *who_perm = &node->who_perm;
4433 who_perm_fini(who_perm);
4434 uu_avl_remove(fsperm->fsp_uge_avl, node);
4435 free(node);
4436 node = next_node;
4437 }
4438
4439 uu_avl_destroy(fsperm->fsp_sc_avl);
4440 uu_avl_destroy(fsperm->fsp_uge_avl);
4441 }
4442
4443 static void
4444 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4445 zfs_deleg_who_type_t who_type, const char *name, char locality)
4446 {
4447 uu_avl_index_t idx = 0;
4448
4449 deleg_perm_node_t *found_node = NULL;
4450 deleg_perm_t *deleg_perm = &node->dpn_perm;
4451
4452 deleg_perm_init(deleg_perm, who_type, name);
4453
4454 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4455 == NULL)
4456 uu_avl_insert(avl, node, idx);
4457 else {
4458 node = found_node;
4459 deleg_perm = &node->dpn_perm;
4460 }
4461
4462
4463 switch (locality) {
4464 case ZFS_DELEG_LOCAL:
4465 deleg_perm->dp_local = B_TRUE;
4466 break;
4467 case ZFS_DELEG_DESCENDENT:
4468 deleg_perm->dp_descend = B_TRUE;
4469 break;
4470 case ZFS_DELEG_NA:
4471 break;
4472 default:
4473 assert(B_FALSE); /* invalid locality */
4474 }
4475 }
4476
4477 static inline int
4478 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4479 {
4480 nvpair_t *nvp = NULL;
4481 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4482 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4483 zfs_deleg_who_type_t who_type = who_perm->who_type;
4484
4485 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4486 const char *name = nvpair_name(nvp);
4487 data_type_t type = nvpair_type(nvp);
4488 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4489 deleg_perm_node_t *node =
4490 safe_malloc(sizeof (deleg_perm_node_t));
4491
4492 assert(type == DATA_TYPE_BOOLEAN);
4493
4494 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4495 set_deleg_perm_node(avl, node, who_type, name, locality);
4496 }
4497
4498 return (0);
4499 }
4500
4501 static inline int
4502 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4503 {
4504 nvpair_t *nvp = NULL;
4505 fs_perm_set_t *fspset = fsperm->fsp_set;
4506
4507 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4508 nvlist_t *nvl2 = NULL;
4509 const char *name = nvpair_name(nvp);
4510 uu_avl_t *avl = NULL;
4511 uu_avl_pool_t *avl_pool = NULL;
4512 zfs_deleg_who_type_t perm_type = name[0];
4513 char perm_locality = name[1];
4514 const char *perm_name = name + 3;
4515 boolean_t is_set = B_TRUE;
4516 who_perm_t *who_perm = NULL;
4517
4518 assert('$' == name[2]);
4519
4520 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4521 return (-1);
4522
4523 switch (perm_type) {
4524 case ZFS_DELEG_CREATE:
4525 case ZFS_DELEG_CREATE_SETS:
4526 case ZFS_DELEG_NAMED_SET:
4527 case ZFS_DELEG_NAMED_SET_SETS:
4528 avl_pool = fspset->fsps_named_set_avl_pool;
4529 avl = fsperm->fsp_sc_avl;
4530 break;
4531 case ZFS_DELEG_USER:
4532 case ZFS_DELEG_USER_SETS:
4533 case ZFS_DELEG_GROUP:
4534 case ZFS_DELEG_GROUP_SETS:
4535 case ZFS_DELEG_EVERYONE:
4536 case ZFS_DELEG_EVERYONE_SETS:
4537 avl_pool = fspset->fsps_who_perm_avl_pool;
4538 avl = fsperm->fsp_uge_avl;
4539 break;
4540
4541 default:
4542 assert(!"unhandled zfs_deleg_who_type_t");
4543 }
4544
4545 if (is_set) {
4546 who_perm_node_t *found_node = NULL;
4547 who_perm_node_t *node = safe_malloc(
4548 sizeof (who_perm_node_t));
4549 who_perm = &node->who_perm;
4550 uu_avl_index_t idx = 0;
4551
4552 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4553 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4554
4555 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4556 == NULL) {
4557 if (avl == fsperm->fsp_uge_avl) {
4558 uid_t rid = 0;
4559 struct passwd *p = NULL;
4560 struct group *g = NULL;
4561 const char *nice_name = NULL;
4562
4563 switch (perm_type) {
4564 case ZFS_DELEG_USER_SETS:
4565 case ZFS_DELEG_USER:
4566 rid = atoi(perm_name);
4567 p = getpwuid(rid);
4568 if (p)
4569 nice_name = p->pw_name;
4570 break;
4571 case ZFS_DELEG_GROUP_SETS:
4572 case ZFS_DELEG_GROUP:
4573 rid = atoi(perm_name);
4574 g = getgrgid(rid);
4575 if (g)
4576 nice_name = g->gr_name;
4577 break;
4578
4579 default:
4580 break;
4581 }
4582
4583 if (nice_name != NULL)
4584 (void) strlcpy(
4585 node->who_perm.who_ug_name,
4586 nice_name, 256);
4587 }
4588
4589 uu_avl_insert(avl, node, idx);
4590 } else {
4591 node = found_node;
4592 who_perm = &node->who_perm;
4593 }
4594 }
4595
4596 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4597 }
4598
4599 return (0);
4600 }
4601
4602 static inline int
4603 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4604 {
4605 nvpair_t *nvp = NULL;
4606 uu_avl_index_t idx = 0;
4607
4608 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4609 nvlist_t *nvl2 = NULL;
4610 const char *fsname = nvpair_name(nvp);
4611 data_type_t type = nvpair_type(nvp);
4612 fs_perm_t *fsperm = NULL;
4613 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4614 if (node == NULL)
4615 nomem();
4616
4617 fsperm = &node->fspn_fsperm;
4618
4619 assert(DATA_TYPE_NVLIST == type);
4620
4621 uu_list_node_init(node, &node->fspn_list_node,
4622 fspset->fsps_list_pool);
4623
4624 idx = uu_list_numnodes(fspset->fsps_list);
4625 fs_perm_init(fsperm, fspset, fsname);
4626
4627 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4628 return (-1);
4629
4630 (void) parse_fs_perm(fsperm, nvl2);
4631
4632 uu_list_insert(fspset->fsps_list, node, idx);
4633 }
4634
4635 return (0);
4636 }
4637
4638 static inline const char *
4639 deleg_perm_comment(zfs_deleg_note_t note)
4640 {
4641 const char *str = "";
4642
4643 /* subcommands */
4644 switch (note) {
4645 /* SUBCOMMANDS */
4646 case ZFS_DELEG_NOTE_ALLOW:
4647 str = gettext("Must also have the permission that is being"
4648 "\n\t\t\t\tallowed");
4649 break;
4650 case ZFS_DELEG_NOTE_CLONE:
4651 str = gettext("Must also have the 'create' ability and 'mount'"
4652 "\n\t\t\t\tability in the origin file system");
4653 break;
4654 case ZFS_DELEG_NOTE_CREATE:
4655 str = gettext("Must also have the 'mount' ability");
4656 break;
4657 case ZFS_DELEG_NOTE_DESTROY:
4658 str = gettext("Must also have the 'mount' ability");
4659 break;
4660 case ZFS_DELEG_NOTE_DIFF:
4661 str = gettext("Allows lookup of paths within a dataset;"
4662 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4663 "\n\t\t\t\tin order to use zfs diff");
4664 break;
4665 case ZFS_DELEG_NOTE_HOLD:
4666 str = gettext("Allows adding a user hold to a snapshot");
4667 break;
4668 case ZFS_DELEG_NOTE_MOUNT:
4669 str = gettext("Allows mount/umount of ZFS datasets");
4670 break;
4671 case ZFS_DELEG_NOTE_PROMOTE:
4672 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4673 " 'promote' ability in the origin file system");
4674 break;
4675 case ZFS_DELEG_NOTE_RECEIVE:
4676 str = gettext("Must also have the 'mount' and 'create'"
4677 " ability");
4678 break;
4679 case ZFS_DELEG_NOTE_RELEASE:
4680 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4681 "might destroy the snapshot");
4682 break;
4683 case ZFS_DELEG_NOTE_RENAME:
4684 str = gettext("Must also have the 'mount' and 'create'"
4685 "\n\t\t\t\tability in the new parent");
4686 break;
4687 case ZFS_DELEG_NOTE_ROLLBACK:
4688 str = gettext("");
4689 break;
4690 case ZFS_DELEG_NOTE_SEND:
4691 str = gettext("");
4692 break;
4693 case ZFS_DELEG_NOTE_SHARE:
4694 str = gettext("Allows sharing file systems over NFS or SMB"
4695 "\n\t\t\t\tprotocols");
4696 break;
4697 case ZFS_DELEG_NOTE_SNAPSHOT:
4698 str = gettext("");
4699 break;
4700 /*
4701 * case ZFS_DELEG_NOTE_VSCAN:
4702 * str = gettext("");
4703 * break;
4704 */
4705 /* OTHER */
4706 case ZFS_DELEG_NOTE_GROUPQUOTA:
4707 str = gettext("Allows accessing any groupquota@... property");
4708 break;
4709 case ZFS_DELEG_NOTE_GROUPUSED:
4710 str = gettext("Allows reading any groupused@... property");
4711 break;
4712 case ZFS_DELEG_NOTE_USERPROP:
4713 str = gettext("Allows changing any user property");
4714 break;
4715 case ZFS_DELEG_NOTE_USERQUOTA:
4716 str = gettext("Allows accessing any userquota@... property");
4717 break;
4718 case ZFS_DELEG_NOTE_USERUSED:
4719 str = gettext("Allows reading any userused@... property");
4720 break;
4721 /* other */
4722 default:
4723 str = "";
4724 }
4725
4726 return (str);
4727 }
4728
4729 struct allow_opts {
4730 boolean_t local;
4731 boolean_t descend;
4732 boolean_t user;
4733 boolean_t group;
4734 boolean_t everyone;
4735 boolean_t create;
4736 boolean_t set;
4737 boolean_t recursive; /* unallow only */
4738 boolean_t prt_usage;
4739
4740 boolean_t prt_perms;
4741 char *who;
4742 char *perms;
4743 const char *dataset;
4744 };
4745
4746 static inline int
4747 prop_cmp(const void *a, const void *b)
4748 {
4749 const char *str1 = *(const char **)a;
4750 const char *str2 = *(const char **)b;
4751 return (strcmp(str1, str2));
4752 }
4753
4754 static void
4755 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4756 {
4757 const char *opt_desc[] = {
4758 "-h", gettext("show this help message and exit"),
4759 "-l", gettext("set permission locally"),
4760 "-d", gettext("set permission for descents"),
4761 "-u", gettext("set permission for user"),
4762 "-g", gettext("set permission for group"),
4763 "-e", gettext("set permission for everyone"),
4764 "-c", gettext("set create time permission"),
4765 "-s", gettext("define permission set"),
4766 /* unallow only */
4767 "-r", gettext("remove permissions recursively"),
4768 };
4769 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4770 size_t allow_size = unallow_size - 2;
4771 const char *props[ZFS_NUM_PROPS];
4772 int i;
4773 size_t count = 0;
4774 FILE *fp = requested ? stdout : stderr;
4775 zprop_desc_t *pdtbl = zfs_prop_get_table();
4776 const char *fmt = gettext("%-16s %-14s\t%s\n");
4777
4778 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4779 HELP_ALLOW));
4780 (void) fprintf(fp, gettext("Options:\n"));
4781 for (int i = 0; i < (un ? unallow_size : allow_size); i++) {
4782 const char *opt = opt_desc[i++];
4783 const char *optdsc = opt_desc[i];
4784 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4785 }
4786
4787 (void) fprintf(fp, gettext("\nThe following permissions are "
4788 "supported:\n\n"));
4789 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4790 gettext("NOTES"));
4791 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4792 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4793 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4794 const char *perm_type = deleg_perm_type(perm_note);
4795 const char *perm_comment = deleg_perm_comment(perm_note);
4796 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4797 }
4798
4799 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4800 zprop_desc_t *pd = &pdtbl[i];
4801 if (pd->pd_visible != B_TRUE)
4802 continue;
4803
4804 if (pd->pd_attr == PROP_READONLY)
4805 continue;
4806
4807 props[count++] = pd->pd_name;
4808 }
4809 props[count] = NULL;
4810
4811 qsort(props, count, sizeof (char *), prop_cmp);
4812
4813 for (i = 0; i < count; i++)
4814 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4815
4816 if (msg != NULL)
4817 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4818
4819 exit(requested ? 0 : 2);
4820 }
4821
4822 static inline const char *
4823 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4824 char **permsp)
4825 {
4826 if (un && argc == expected_argc - 1)
4827 *permsp = NULL;
4828 else if (argc == expected_argc)
4829 *permsp = argv[argc - 2];
4830 else
4831 allow_usage(un, B_FALSE,
4832 gettext("wrong number of parameters\n"));
4833
4834 return (argv[argc - 1]);
4835 }
4836
4837 static void
4838 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4839 {
4840 int uge_sum = opts->user + opts->group + opts->everyone;
4841 int csuge_sum = opts->create + opts->set + uge_sum;
4842 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4843 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4844
4845 if (uge_sum > 1)
4846 allow_usage(un, B_FALSE,
4847 gettext("-u, -g, and -e are mutually exclusive\n"));
4848
4849 if (opts->prt_usage) {
4850 if (argc == 0 && all_sum == 0)
4851 allow_usage(un, B_TRUE, NULL);
4852 else
4853 usage(B_FALSE);
4854 }
4855
4856 if (opts->set) {
4857 if (csuge_sum > 1)
4858 allow_usage(un, B_FALSE,
4859 gettext("invalid options combined with -s\n"));
4860
4861 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4862 if (argv[0][0] != '@')
4863 allow_usage(un, B_FALSE,
4864 gettext("invalid set name: missing '@' prefix\n"));
4865 opts->who = argv[0];
4866 } else if (opts->create) {
4867 if (ldcsuge_sum > 1)
4868 allow_usage(un, B_FALSE,
4869 gettext("invalid options combined with -c\n"));
4870 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4871 } else if (opts->everyone) {
4872 if (csuge_sum > 1)
4873 allow_usage(un, B_FALSE,
4874 gettext("invalid options combined with -e\n"));
4875 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4876 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4877 == 0) {
4878 opts->everyone = B_TRUE;
4879 argc--;
4880 argv++;
4881 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4882 } else if (argc == 1 && !un) {
4883 opts->prt_perms = B_TRUE;
4884 opts->dataset = argv[argc-1];
4885 } else {
4886 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4887 opts->who = argv[0];
4888 }
4889
4890 if (!opts->local && !opts->descend) {
4891 opts->local = B_TRUE;
4892 opts->descend = B_TRUE;
4893 }
4894 }
4895
4896 static void
4897 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4898 const char *who, char *perms, nvlist_t *top_nvl)
4899 {
4900 int i;
4901 char ld[2] = { '\0', '\0' };
4902 char who_buf[MAXNAMELEN + 32];
4903 char base_type = '\0';
4904 char set_type = '\0';
4905 nvlist_t *base_nvl = NULL;
4906 nvlist_t *set_nvl = NULL;
4907 nvlist_t *nvl;
4908
4909 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4910 nomem();
4911 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4912 nomem();
4913
4914 switch (type) {
4915 case ZFS_DELEG_NAMED_SET_SETS:
4916 case ZFS_DELEG_NAMED_SET:
4917 set_type = ZFS_DELEG_NAMED_SET_SETS;
4918 base_type = ZFS_DELEG_NAMED_SET;
4919 ld[0] = ZFS_DELEG_NA;
4920 break;
4921 case ZFS_DELEG_CREATE_SETS:
4922 case ZFS_DELEG_CREATE:
4923 set_type = ZFS_DELEG_CREATE_SETS;
4924 base_type = ZFS_DELEG_CREATE;
4925 ld[0] = ZFS_DELEG_NA;
4926 break;
4927 case ZFS_DELEG_USER_SETS:
4928 case ZFS_DELEG_USER:
4929 set_type = ZFS_DELEG_USER_SETS;
4930 base_type = ZFS_DELEG_USER;
4931 if (local)
4932 ld[0] = ZFS_DELEG_LOCAL;
4933 if (descend)
4934 ld[1] = ZFS_DELEG_DESCENDENT;
4935 break;
4936 case ZFS_DELEG_GROUP_SETS:
4937 case ZFS_DELEG_GROUP:
4938 set_type = ZFS_DELEG_GROUP_SETS;
4939 base_type = ZFS_DELEG_GROUP;
4940 if (local)
4941 ld[0] = ZFS_DELEG_LOCAL;
4942 if (descend)
4943 ld[1] = ZFS_DELEG_DESCENDENT;
4944 break;
4945 case ZFS_DELEG_EVERYONE_SETS:
4946 case ZFS_DELEG_EVERYONE:
4947 set_type = ZFS_DELEG_EVERYONE_SETS;
4948 base_type = ZFS_DELEG_EVERYONE;
4949 if (local)
4950 ld[0] = ZFS_DELEG_LOCAL;
4951 if (descend)
4952 ld[1] = ZFS_DELEG_DESCENDENT;
4953 break;
4954
4955 default:
4956 assert(set_type != '\0' && base_type != '\0');
4957 }
4958
4959 if (perms != NULL) {
4960 char *curr = perms;
4961 char *end = curr + strlen(perms);
4962
4963 while (curr < end) {
4964 char *delim = strchr(curr, ',');
4965 if (delim == NULL)
4966 delim = end;
4967 else
4968 *delim = '\0';
4969
4970 if (curr[0] == '@')
4971 nvl = set_nvl;
4972 else
4973 nvl = base_nvl;
4974
4975 (void) nvlist_add_boolean(nvl, curr);
4976 if (delim != end)
4977 *delim = ',';
4978 curr = delim + 1;
4979 }
4980
4981 for (i = 0; i < 2; i++) {
4982 char locality = ld[i];
4983 if (locality == 0)
4984 continue;
4985
4986 if (!nvlist_empty(base_nvl)) {
4987 if (who != NULL)
4988 (void) snprintf(who_buf,
4989 sizeof (who_buf), "%c%c$%s",
4990 base_type, locality, who);
4991 else
4992 (void) snprintf(who_buf,
4993 sizeof (who_buf), "%c%c$",
4994 base_type, locality);
4995
4996 (void) nvlist_add_nvlist(top_nvl, who_buf,
4997 base_nvl);
4998 }
4999
5000
5001 if (!nvlist_empty(set_nvl)) {
5002 if (who != NULL)
5003 (void) snprintf(who_buf,
5004 sizeof (who_buf), "%c%c$%s",
5005 set_type, locality, who);
5006 else
5007 (void) snprintf(who_buf,
5008 sizeof (who_buf), "%c%c$",
5009 set_type, locality);
5010
5011 (void) nvlist_add_nvlist(top_nvl, who_buf,
5012 set_nvl);
5013 }
5014 }
5015 } else {
5016 for (i = 0; i < 2; i++) {
5017 char locality = ld[i];
5018 if (locality == 0)
5019 continue;
5020
5021 if (who != NULL)
5022 (void) snprintf(who_buf, sizeof (who_buf),
5023 "%c%c$%s", base_type, locality, who);
5024 else
5025 (void) snprintf(who_buf, sizeof (who_buf),
5026 "%c%c$", base_type, locality);
5027 (void) nvlist_add_boolean(top_nvl, who_buf);
5028
5029 if (who != NULL)
5030 (void) snprintf(who_buf, sizeof (who_buf),
5031 "%c%c$%s", set_type, locality, who);
5032 else
5033 (void) snprintf(who_buf, sizeof (who_buf),
5034 "%c%c$", set_type, locality);
5035 (void) nvlist_add_boolean(top_nvl, who_buf);
5036 }
5037 }
5038 }
5039
5040 static int
5041 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5042 {
5043 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5044 nomem();
5045
5046 if (opts->set) {
5047 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5048 opts->descend, opts->who, opts->perms, *nvlp);
5049 } else if (opts->create) {
5050 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5051 opts->descend, NULL, opts->perms, *nvlp);
5052 } else if (opts->everyone) {
5053 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5054 opts->descend, NULL, opts->perms, *nvlp);
5055 } else {
5056 char *curr = opts->who;
5057 char *end = curr + strlen(curr);
5058
5059 while (curr < end) {
5060 const char *who;
5061 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5062 char *endch;
5063 char *delim = strchr(curr, ',');
5064 char errbuf[256];
5065 char id[64];
5066 struct passwd *p = NULL;
5067 struct group *g = NULL;
5068
5069 uid_t rid;
5070 if (delim == NULL)
5071 delim = end;
5072 else
5073 *delim = '\0';
5074
5075 rid = (uid_t)strtol(curr, &endch, 0);
5076 if (opts->user) {
5077 who_type = ZFS_DELEG_USER;
5078 if (*endch != '\0')
5079 p = getpwnam(curr);
5080 else
5081 p = getpwuid(rid);
5082
5083 if (p != NULL)
5084 rid = p->pw_uid;
5085 else {
5086 (void) snprintf(errbuf, 256, gettext(
5087 "invalid user %s"), curr);
5088 allow_usage(un, B_TRUE, errbuf);
5089 }
5090 } else if (opts->group) {
5091 who_type = ZFS_DELEG_GROUP;
5092 if (*endch != '\0')
5093 g = getgrnam(curr);
5094 else
5095 g = getgrgid(rid);
5096
5097 if (g != NULL)
5098 rid = g->gr_gid;
5099 else {
5100 (void) snprintf(errbuf, 256, gettext(
5101 "invalid group %s"), curr);
5102 allow_usage(un, B_TRUE, errbuf);
5103 }
5104 } else {
5105 if (*endch != '\0') {
5106 p = getpwnam(curr);
5107 } else {
5108 p = getpwuid(rid);
5109 }
5110
5111 if (p == NULL) {
5112 if (*endch != '\0') {
5113 g = getgrnam(curr);
5114 } else {
5115 g = getgrgid(rid);
5116 }
5117 }
5118
5119 if (p != NULL) {
5120 who_type = ZFS_DELEG_USER;
5121 rid = p->pw_uid;
5122 } else if (g != NULL) {
5123 who_type = ZFS_DELEG_GROUP;
5124 rid = g->gr_gid;
5125 } else {
5126 (void) snprintf(errbuf, 256, gettext(
5127 "invalid user/group %s"), curr);
5128 allow_usage(un, B_TRUE, errbuf);
5129 }
5130 }
5131
5132 (void) sprintf(id, "%u", rid);
5133 who = id;
5134
5135 store_allow_perm(who_type, opts->local,
5136 opts->descend, who, opts->perms, *nvlp);
5137 curr = delim + 1;
5138 }
5139 }
5140
5141 return (0);
5142 }
5143
5144 static void
5145 print_set_creat_perms(uu_avl_t *who_avl)
5146 {
5147 const char *sc_title[] = {
5148 gettext("Permission sets:\n"),
5149 gettext("Create time permissions:\n"),
5150 NULL
5151 };
5152 const char **title_ptr = sc_title;
5153 who_perm_node_t *who_node = NULL;
5154 int prev_weight = -1;
5155
5156 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5157 who_node = uu_avl_next(who_avl, who_node)) {
5158 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5159 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5160 const char *who_name = who_node->who_perm.who_name;
5161 int weight = who_type2weight(who_type);
5162 boolean_t first = B_TRUE;
5163 deleg_perm_node_t *deleg_node;
5164
5165 if (prev_weight != weight) {
5166 (void) printf(*title_ptr++);
5167 prev_weight = weight;
5168 }
5169
5170 if (who_name == NULL || strnlen(who_name, 1) == 0)
5171 (void) printf("\t");
5172 else
5173 (void) printf("\t%s ", who_name);
5174
5175 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5176 deleg_node = uu_avl_next(avl, deleg_node)) {
5177 if (first) {
5178 (void) printf("%s",
5179 deleg_node->dpn_perm.dp_name);
5180 first = B_FALSE;
5181 } else
5182 (void) printf(",%s",
5183 deleg_node->dpn_perm.dp_name);
5184 }
5185
5186 (void) printf("\n");
5187 }
5188 }
5189
5190 static void
5191 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5192 const char *title)
5193 {
5194 who_perm_node_t *who_node = NULL;
5195 boolean_t prt_title = B_TRUE;
5196 uu_avl_walk_t *walk;
5197
5198 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5199 nomem();
5200
5201 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5202 const char *who_name = who_node->who_perm.who_name;
5203 const char *nice_who_name = who_node->who_perm.who_ug_name;
5204 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5205 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5206 char delim = ' ';
5207 deleg_perm_node_t *deleg_node;
5208 boolean_t prt_who = B_TRUE;
5209
5210 for (deleg_node = uu_avl_first(avl);
5211 deleg_node != NULL;
5212 deleg_node = uu_avl_next(avl, deleg_node)) {
5213 if (local != deleg_node->dpn_perm.dp_local ||
5214 descend != deleg_node->dpn_perm.dp_descend)
5215 continue;
5216
5217 if (prt_who) {
5218 const char *who = NULL;
5219 if (prt_title) {
5220 prt_title = B_FALSE;
5221 (void) printf(title);
5222 }
5223
5224 switch (who_type) {
5225 case ZFS_DELEG_USER_SETS:
5226 case ZFS_DELEG_USER:
5227 who = gettext("user");
5228 if (nice_who_name)
5229 who_name = nice_who_name;
5230 break;
5231 case ZFS_DELEG_GROUP_SETS:
5232 case ZFS_DELEG_GROUP:
5233 who = gettext("group");
5234 if (nice_who_name)
5235 who_name = nice_who_name;
5236 break;
5237 case ZFS_DELEG_EVERYONE_SETS:
5238 case ZFS_DELEG_EVERYONE:
5239 who = gettext("everyone");
5240 who_name = NULL;
5241 break;
5242
5243 default:
5244 assert(who != NULL);
5245 }
5246
5247 prt_who = B_FALSE;
5248 if (who_name == NULL)
5249 (void) printf("\t%s", who);
5250 else
5251 (void) printf("\t%s %s", who, who_name);
5252 }
5253
5254 (void) printf("%c%s", delim,
5255 deleg_node->dpn_perm.dp_name);
5256 delim = ',';
5257 }
5258
5259 if (!prt_who)
5260 (void) printf("\n");
5261 }
5262
5263 uu_avl_walk_end(walk);
5264 }
5265
5266 static void
5267 print_fs_perms(fs_perm_set_t *fspset)
5268 {
5269 fs_perm_node_t *node = NULL;
5270 char buf[MAXNAMELEN + 32];
5271 const char *dsname = buf;
5272
5273 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5274 node = uu_list_next(fspset->fsps_list, node)) {
5275 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5276 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5277 int left = 0;
5278
5279 (void) snprintf(buf, sizeof (buf),
5280 gettext("---- Permissions on %s "),
5281 node->fspn_fsperm.fsp_name);
5282 (void) printf(dsname);
5283 left = 70 - strlen(buf);
5284 while (left-- > 0)
5285 (void) printf("-");
5286 (void) printf("\n");
5287
5288 print_set_creat_perms(sc_avl);
5289 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5290 gettext("Local permissions:\n"));
5291 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5292 gettext("Descendent permissions:\n"));
5293 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5294 gettext("Local+Descendent permissions:\n"));
5295 }
5296 }
5297
5298 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5299
5300 struct deleg_perms {
5301 boolean_t un;
5302 nvlist_t *nvl;
5303 };
5304
5305 static int
5306 set_deleg_perms(zfs_handle_t *zhp, void *data)
5307 {
5308 struct deleg_perms *perms = (struct deleg_perms *)data;
5309 zfs_type_t zfs_type = zfs_get_type(zhp);
5310
5311 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5312 return (0);
5313
5314 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5315 }
5316
5317 static int
5318 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5319 {
5320 zfs_handle_t *zhp;
5321 nvlist_t *perm_nvl = NULL;
5322 nvlist_t *update_perm_nvl = NULL;
5323 int error = 1;
5324 int c;
5325 struct allow_opts opts = { 0 };
5326
5327 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5328
5329 /* check opts */
5330 while ((c = getopt(argc, argv, optstr)) != -1) {
5331 switch (c) {
5332 case 'l':
5333 opts.local = B_TRUE;
5334 break;
5335 case 'd':
5336 opts.descend = B_TRUE;
5337 break;
5338 case 'u':
5339 opts.user = B_TRUE;
5340 break;
5341 case 'g':
5342 opts.group = B_TRUE;
5343 break;
5344 case 'e':
5345 opts.everyone = B_TRUE;
5346 break;
5347 case 's':
5348 opts.set = B_TRUE;
5349 break;
5350 case 'c':
5351 opts.create = B_TRUE;
5352 break;
5353 case 'r':
5354 opts.recursive = B_TRUE;
5355 break;
5356 case ':':
5357 (void) fprintf(stderr, gettext("missing argument for "
5358 "'%c' option\n"), optopt);
5359 usage(B_FALSE);
5360 break;
5361 case 'h':
5362 opts.prt_usage = B_TRUE;
5363 break;
5364 case '?':
5365 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5366 optopt);
5367 usage(B_FALSE);
5368 }
5369 }
5370
5371 argc -= optind;
5372 argv += optind;
5373
5374 /* check arguments */
5375 parse_allow_args(argc, argv, un, &opts);
5376
5377 /* try to open the dataset */
5378 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5379 ZFS_TYPE_VOLUME)) == NULL) {
5380 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5381 opts.dataset);
5382 return (-1);
5383 }
5384
5385 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5386 goto cleanup2;
5387
5388 fs_perm_set_init(&fs_perm_set);
5389 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5390 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5391 goto cleanup1;
5392 }
5393
5394 if (opts.prt_perms)
5395 print_fs_perms(&fs_perm_set);
5396 else {
5397 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5398 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5399 goto cleanup0;
5400
5401 if (un && opts.recursive) {
5402 struct deleg_perms data = { un, update_perm_nvl };
5403 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5404 &data) != 0)
5405 goto cleanup0;
5406 }
5407 }
5408
5409 error = 0;
5410
5411 cleanup0:
5412 nvlist_free(perm_nvl);
5413 nvlist_free(update_perm_nvl);
5414 cleanup1:
5415 fs_perm_set_fini(&fs_perm_set);
5416 cleanup2:
5417 zfs_close(zhp);
5418
5419 return (error);
5420 }
5421
5422 static int
5423 zfs_do_allow(int argc, char **argv)
5424 {
5425 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5426 }
5427
5428 static int
5429 zfs_do_unallow(int argc, char **argv)
5430 {
5431 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5432 }
5433
5434 static int
5435 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5436 {
5437 int errors = 0;
5438 int i;
5439 const char *tag;
5440 boolean_t recursive = B_FALSE;
5441 const char *opts = holding ? "rt" : "r";
5442 int c;
5443
5444 /* check options */
5445 while ((c = getopt(argc, argv, opts)) != -1) {
5446 switch (c) {
5447 case 'r':
5448 recursive = B_TRUE;
5449 break;
5450 case '?':
5451 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5452 optopt);
5453 usage(B_FALSE);
5454 }
5455 }
5456
5457 argc -= optind;
5458 argv += optind;
5459
5460 /* check number of arguments */
5461 if (argc < 2)
5462 usage(B_FALSE);
5463
5464 tag = argv[0];
5465 --argc;
5466 ++argv;
5467
5468 if (holding && tag[0] == '.') {
5469 /* tags starting with '.' are reserved for libzfs */
5470 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5471 usage(B_FALSE);
5472 }
5473
5474 for (i = 0; i < argc; ++i) {
5475 zfs_handle_t *zhp;
5476 char parent[ZFS_MAX_DATASET_NAME_LEN];
5477 const char *delim;
5478 char *path = argv[i];
5479
5480 delim = strchr(path, '@');
5481 if (delim == NULL) {
5482 (void) fprintf(stderr,
5483 gettext("'%s' is not a snapshot\n"), path);
5484 ++errors;
5485 continue;
5486 }
5487 (void) strncpy(parent, path, delim - path);
5488 parent[delim - path] = '\0';
5489
5490 zhp = zfs_open(g_zfs, parent,
5491 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5492 if (zhp == NULL) {
5493 ++errors;
5494 continue;
5495 }
5496 if (holding) {
5497 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5498 ++errors;
5499 } else {
5500 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5501 ++errors;
5502 }
5503 zfs_close(zhp);
5504 }
5505
5506 return (errors != 0);
5507 }
5508
5509 /*
5510 * zfs hold [-r] [-t] <tag> <snap> ...
5511 *
5512 * -r Recursively hold
5513 *
5514 * Apply a user-hold with the given tag to the list of snapshots.
5515 */
5516 static int
5517 zfs_do_hold(int argc, char **argv)
5518 {
5519 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5520 }
5521
5522 /*
5523 * zfs release [-r] <tag> <snap> ...
5524 *
5525 * -r Recursively release
5526 *
5527 * Release a user-hold with the given tag from the list of snapshots.
5528 */
5529 static int
5530 zfs_do_release(int argc, char **argv)
5531 {
5532 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5533 }
5534
5535 typedef struct holds_cbdata {
5536 boolean_t cb_recursive;
5537 const char *cb_snapname;
5538 nvlist_t **cb_nvlp;
5539 size_t cb_max_namelen;
5540 size_t cb_max_taglen;
5541 } holds_cbdata_t;
5542
5543 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5544 #define DATETIME_BUF_LEN (32)
5545 /*
5546 *
5547 */
5548 static void
5549 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl)
5550 {
5551 int i;
5552 nvpair_t *nvp = NULL;
5553 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5554 const char *col;
5555
5556 if (!scripted) {
5557 for (i = 0; i < 3; i++) {
5558 col = gettext(hdr_cols[i]);
5559 if (i < 2)
5560 (void) printf("%-*s ", i ? tagwidth : nwidth,
5561 col);
5562 else
5563 (void) printf("%s\n", col);
5564 }
5565 }
5566
5567 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5568 char *zname = nvpair_name(nvp);
5569 nvlist_t *nvl2;
5570 nvpair_t *nvp2 = NULL;
5571 (void) nvpair_value_nvlist(nvp, &nvl2);
5572 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5573 char tsbuf[DATETIME_BUF_LEN];
5574 char *tagname = nvpair_name(nvp2);
5575 uint64_t val = 0;
5576 time_t time;
5577 struct tm t;
5578 char sep = scripted ? '\t' : ' ';
5579 size_t sepnum = scripted ? 1 : 2;
5580
5581 (void) nvpair_value_uint64(nvp2, &val);
5582 time = (time_t)val;
5583 (void) localtime_r(&time, &t);
5584 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5585 gettext(STRFTIME_FMT_STR), &t);
5586
5587 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5588 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5589 }
5590 }
5591 }
5592
5593 /*
5594 * Generic callback function to list a dataset or snapshot.
5595 */
5596 static int
5597 holds_callback(zfs_handle_t *zhp, void *data)
5598 {
5599 holds_cbdata_t *cbp = data;
5600 nvlist_t *top_nvl = *cbp->cb_nvlp;
5601 nvlist_t *nvl = NULL;
5602 nvpair_t *nvp = NULL;
5603 const char *zname = zfs_get_name(zhp);
5604 size_t znamelen = strlen(zname);
5605
5606 if (cbp->cb_recursive) {
5607 const char *snapname;
5608 char *delim = strchr(zname, '@');
5609 if (delim == NULL)
5610 return (0);
5611
5612 snapname = delim + 1;
5613 if (strcmp(cbp->cb_snapname, snapname))
5614 return (0);
5615 }
5616
5617 if (zfs_get_holds(zhp, &nvl) != 0)
5618 return (-1);
5619
5620 if (znamelen > cbp->cb_max_namelen)
5621 cbp->cb_max_namelen = znamelen;
5622
5623 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5624 const char *tag = nvpair_name(nvp);
5625 size_t taglen = strlen(tag);
5626 if (taglen > cbp->cb_max_taglen)
5627 cbp->cb_max_taglen = taglen;
5628 }
5629
5630 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5631 }
5632
5633 /*
5634 * zfs holds [-r] <snap> ...
5635 *
5636 * -r Recursively hold
5637 */
5638 static int
5639 zfs_do_holds(int argc, char **argv)
5640 {
5641 int errors = 0;
5642 int c;
5643 int i;
5644 boolean_t scripted = B_FALSE;
5645 boolean_t recursive = B_FALSE;
5646 const char *opts = "rH";
5647 nvlist_t *nvl;
5648
5649 int types = ZFS_TYPE_SNAPSHOT;
5650 holds_cbdata_t cb = { 0 };
5651
5652 int limit = 0;
5653 int ret = 0;
5654 int flags = 0;
5655
5656 /* check options */
5657 while ((c = getopt(argc, argv, opts)) != -1) {
5658 switch (c) {
5659 case 'r':
5660 recursive = B_TRUE;
5661 break;
5662 case 'H':
5663 scripted = B_TRUE;
5664 break;
5665 case '?':
5666 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5667 optopt);
5668 usage(B_FALSE);
5669 }
5670 }
5671
5672 if (recursive) {
5673 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5674 flags |= ZFS_ITER_RECURSE;
5675 }
5676
5677 argc -= optind;
5678 argv += optind;
5679
5680 /* check number of arguments */
5681 if (argc < 1)
5682 usage(B_FALSE);
5683
5684 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5685 nomem();
5686
5687 for (i = 0; i < argc; ++i) {
5688 char *snapshot = argv[i];
5689 const char *delim;
5690 const char *snapname;
5691
5692 delim = strchr(snapshot, '@');
5693 if (delim == NULL) {
5694 (void) fprintf(stderr,
5695 gettext("'%s' is not a snapshot\n"), snapshot);
5696 ++errors;
5697 continue;
5698 }
5699 snapname = delim + 1;
5700 if (recursive)
5701 snapshot[delim - snapshot] = '\0';
5702
5703 cb.cb_recursive = recursive;
5704 cb.cb_snapname = snapname;
5705 cb.cb_nvlp = &nvl;
5706
5707 /*
5708 * 1. collect holds data, set format options
5709 */
5710 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5711 holds_callback, &cb);
5712 if (ret != 0)
5713 ++errors;
5714 }
5715
5716 /*
5717 * 2. print holds data
5718 */
5719 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5720
5721 if (nvlist_empty(nvl))
5722 (void) printf(gettext("no datasets available\n"));
5723
5724 nvlist_free(nvl);
5725
5726 return (0 != errors);
5727 }
5728
5729 #define CHECK_SPINNER 30
5730 #define SPINNER_TIME 3 /* seconds */
5731 #define MOUNT_TIME 5 /* seconds */
5732
5733 static int
5734 get_one_dataset(zfs_handle_t *zhp, void *data)
5735 {
5736 static char *spin[] = { "-", "\\", "|", "/" };
5737 static int spinval = 0;
5738 static int spincheck = 0;
5739 static time_t last_spin_time = (time_t)0;
5740 get_all_cb_t *cbp = data;
5741 zfs_type_t type = zfs_get_type(zhp);
5742
5743 if (cbp->cb_verbose) {
5744 if (--spincheck < 0) {
5745 time_t now = time(NULL);
5746 if (last_spin_time + SPINNER_TIME < now) {
5747 update_progress(spin[spinval++ % 4]);
5748 last_spin_time = now;
5749 }
5750 spincheck = CHECK_SPINNER;
5751 }
5752 }
5753
5754 /*
5755 * Interate over any nested datasets.
5756 */
5757 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5758 zfs_close(zhp);
5759 return (1);
5760 }
5761
5762 /*
5763 * Skip any datasets whose type does not match.
5764 */
5765 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5766 zfs_close(zhp);
5767 return (0);
5768 }
5769 libzfs_add_handle(cbp, zhp);
5770 assert(cbp->cb_used <= cbp->cb_alloc);
5771
5772 return (0);
5773 }
5774
5775 static void
5776 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5777 {
5778 get_all_cb_t cb = { 0 };
5779 cb.cb_verbose = verbose;
5780 cb.cb_getone = get_one_dataset;
5781
5782 if (verbose)
5783 set_progress_header(gettext("Reading ZFS config"));
5784 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5785
5786 *dslist = cb.cb_handles;
5787 *count = cb.cb_used;
5788
5789 if (verbose)
5790 finish_progress(gettext("done."));
5791 }
5792
5793 /*
5794 * Generic callback for sharing or mounting filesystems. Because the code is so
5795 * similar, we have a common function with an extra parameter to determine which
5796 * mode we are using.
5797 */
5798 #define OP_SHARE 0x1
5799 #define OP_MOUNT 0x2
5800
5801 /*
5802 * Share or mount a dataset.
5803 */
5804 static int
5805 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5806 boolean_t explicit, const char *options)
5807 {
5808 char mountpoint[ZFS_MAXPROPLEN];
5809 char shareopts[ZFS_MAXPROPLEN];
5810 char smbshareopts[ZFS_MAXPROPLEN];
5811 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5812 struct mnttab mnt;
5813 uint64_t zoned, canmount;
5814 boolean_t shared_nfs, shared_smb;
5815
5816 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
5817
5818 /*
5819 * Check to make sure we can mount/share this dataset. If we
5820 * are in the global zone and the filesystem is exported to a
5821 * local zone, or if we are in a local zone and the
5822 * filesystem is not exported, then it is an error.
5823 */
5824 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
5825
5826 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5827 if (!explicit)
5828 return (0);
5829
5830 (void) fprintf(stderr, gettext("cannot %s '%s': "
5831 "dataset is exported to a local zone\n"), cmdname,
5832 zfs_get_name(zhp));
5833 return (1);
5834
5835 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5836 if (!explicit)
5837 return (0);
5838
5839 (void) fprintf(stderr, gettext("cannot %s '%s': "
5840 "permission denied\n"), cmdname,
5841 zfs_get_name(zhp));
5842 return (1);
5843 }
5844
5845 /*
5846 * Ignore any filesystems which don't apply to us. This
5847 * includes those with a legacy mountpoint, or those with
5848 * legacy share options.
5849 */
5850 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5851 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5852 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5853 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5854 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5855 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5856
5857 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5858 strcmp(smbshareopts, "off") == 0) {
5859 if (!explicit)
5860 return (0);
5861
5862 (void) fprintf(stderr, gettext("cannot share '%s': "
5863 "legacy share\n"), zfs_get_name(zhp));
5864 (void) fprintf(stderr, gettext("use share(1M) to "
5865 "share this filesystem, or set "
5866 "sharenfs property on\n"));
5867 return (1);
5868 }
5869
5870 /*
5871 * We cannot share or mount legacy filesystems. If the
5872 * shareopts is non-legacy but the mountpoint is legacy, we
5873 * treat it as a legacy share.
5874 */
5875 if (strcmp(mountpoint, "legacy") == 0) {
5876 if (!explicit)
5877 return (0);
5878
5879 (void) fprintf(stderr, gettext("cannot %s '%s': "
5880 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5881 (void) fprintf(stderr, gettext("use %s(1M) to "
5882 "%s this filesystem\n"), cmdname, cmdname);
5883 return (1);
5884 }
5885
5886 if (strcmp(mountpoint, "none") == 0) {
5887 if (!explicit)
5888 return (0);
5889
5890 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5891 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5892 return (1);
5893 }
5894
5895 /*
5896 * canmount explicit outcome
5897 * on no pass through
5898 * on yes pass through
5899 * off no return 0
5900 * off yes display error, return 1
5901 * noauto no return 0
5902 * noauto yes pass through
5903 */
5904 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5905 if (canmount == ZFS_CANMOUNT_OFF) {
5906 if (!explicit)
5907 return (0);
5908
5909 (void) fprintf(stderr, gettext("cannot %s '%s': "
5910 "'canmount' property is set to 'off'\n"), cmdname,
5911 zfs_get_name(zhp));
5912 return (1);
5913 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5914 return (0);
5915 }
5916
5917 /*
5918 * If this filesystem is inconsistent and has a receive resume
5919 * token, we can not mount it.
5920 */
5921 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
5922 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
5923 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
5924 if (!explicit)
5925 return (0);
5926
5927 (void) fprintf(stderr, gettext("cannot %s '%s': "
5928 "Contains partially-completed state from "
5929 "\"zfs receive -r\", which can be resumed with "
5930 "\"zfs send -t\"\n"),
5931 cmdname, zfs_get_name(zhp));
5932 return (1);
5933 }
5934
5935 /*
5936 * At this point, we have verified that the mountpoint and/or
5937 * shareopts are appropriate for auto management. If the
5938 * filesystem is already mounted or shared, return (failing
5939 * for explicit requests); otherwise mount or share the
5940 * filesystem.
5941 */
5942 switch (op) {
5943 case OP_SHARE:
5944
5945 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5946 shared_smb = zfs_is_shared_smb(zhp, NULL);
5947
5948 if ((shared_nfs && shared_smb) ||
5949 (shared_nfs && strcmp(shareopts, "on") == 0 &&
5950 strcmp(smbshareopts, "off") == 0) ||
5951 (shared_smb && strcmp(smbshareopts, "on") == 0 &&
5952 strcmp(shareopts, "off") == 0)) {
5953 if (!explicit)
5954 return (0);
5955
5956 (void) fprintf(stderr, gettext("cannot share "
5957 "'%s': filesystem already shared\n"),
5958 zfs_get_name(zhp));
5959 return (1);
5960 }
5961
5962 if (!zfs_is_mounted(zhp, NULL) &&
5963 zfs_mount(zhp, NULL, 0) != 0)
5964 return (1);
5965
5966 if (protocol == NULL) {
5967 if (zfs_shareall(zhp) != 0)
5968 return (1);
5969 } else if (strcmp(protocol, "nfs") == 0) {
5970 if (zfs_share_nfs(zhp))
5971 return (1);
5972 } else if (strcmp(protocol, "smb") == 0) {
5973 if (zfs_share_smb(zhp))
5974 return (1);
5975 } else {
5976 (void) fprintf(stderr, gettext("cannot share "
5977 "'%s': invalid share type '%s' "
5978 "specified\n"),
5979 zfs_get_name(zhp), protocol);
5980 return (1);
5981 }
5982
5983 break;
5984
5985 case OP_MOUNT:
5986 if (options == NULL)
5987 mnt.mnt_mntopts = "";
5988 else
5989 mnt.mnt_mntopts = (char *)options;
5990
5991 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5992 zfs_is_mounted(zhp, NULL)) {
5993 if (!explicit)
5994 return (0);
5995
5996 (void) fprintf(stderr, gettext("cannot mount "
5997 "'%s': filesystem already mounted\n"),
5998 zfs_get_name(zhp));
5999 return (1);
6000 }
6001
6002 if (zfs_mount(zhp, options, flags) != 0)
6003 return (1);
6004 break;
6005 }
6006
6007 return (0);
6008 }
6009
6010 /*
6011 * Reports progress in the form "(current/total)". Not thread-safe.
6012 */
6013 static void
6014 report_mount_progress(int current, int total)
6015 {
6016 static time_t last_progress_time = 0;
6017 time_t now = time(NULL);
6018 char info[32];
6019
6020 /* report 1..n instead of 0..n-1 */
6021 ++current;
6022
6023 /* display header if we're here for the first time */
6024 if (current == 1) {
6025 set_progress_header(gettext("Mounting ZFS filesystems"));
6026 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6027 /* too soon to report again */
6028 return;
6029 }
6030
6031 last_progress_time = now;
6032
6033 (void) sprintf(info, "(%d/%d)", current, total);
6034
6035 if (current == total)
6036 finish_progress(info);
6037 else
6038 update_progress(info);
6039 }
6040
6041 static void
6042 append_options(char *mntopts, char *newopts)
6043 {
6044 int len = strlen(mntopts);
6045
6046 /* original length plus new string to append plus 1 for the comma */
6047 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6048 (void) fprintf(stderr, gettext("the opts argument for "
6049 "'%c' option is too long (more than %d chars)\n"),
6050 "-o", MNT_LINE_MAX);
6051 usage(B_FALSE);
6052 }
6053
6054 if (*mntopts)
6055 mntopts[len++] = ',';
6056
6057 (void) strcpy(&mntopts[len], newopts);
6058 }
6059
6060 static int
6061 share_mount(int op, int argc, char **argv)
6062 {
6063 int do_all = 0;
6064 boolean_t verbose = B_FALSE;
6065 int c, ret = 0;
6066 char *options = NULL;
6067 int flags = 0;
6068
6069 /* check options */
6070 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
6071 != -1) {
6072 switch (c) {
6073 case 'a':
6074 do_all = 1;
6075 break;
6076 case 'v':
6077 verbose = B_TRUE;
6078 break;
6079 case 'o':
6080 if (*optarg == '\0') {
6081 (void) fprintf(stderr, gettext("empty mount "
6082 "options (-o) specified\n"));
6083 usage(B_FALSE);
6084 }
6085
6086 if (options == NULL)
6087 options = safe_malloc(MNT_LINE_MAX + 1);
6088
6089 /* option validation is done later */
6090 append_options(options, optarg);
6091 break;
6092
6093 case 'O':
6094 flags |= MS_OVERLAY;
6095 break;
6096 case ':':
6097 (void) fprintf(stderr, gettext("missing argument for "
6098 "'%c' option\n"), optopt);
6099 usage(B_FALSE);
6100 break;
6101 case '?':
6102 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6103 optopt);
6104 usage(B_FALSE);
6105 }
6106 }
6107
6108 argc -= optind;
6109 argv += optind;
6110
6111 /* check number of arguments */
6112 if (do_all) {
6113 zfs_handle_t **dslist = NULL;
6114 size_t i, count = 0;
6115 char *protocol = NULL;
6116
6117 if (op == OP_SHARE && argc > 0) {
6118 if (strcmp(argv[0], "nfs") != 0 &&
6119 strcmp(argv[0], "smb") != 0) {
6120 (void) fprintf(stderr, gettext("share type "
6121 "must be 'nfs' or 'smb'\n"));
6122 usage(B_FALSE);
6123 }
6124 protocol = argv[0];
6125 argc--;
6126 argv++;
6127 }
6128
6129 if (argc != 0) {
6130 (void) fprintf(stderr, gettext("too many arguments\n"));
6131 usage(B_FALSE);
6132 }
6133
6134 start_progress_timer();
6135 get_all_datasets(&dslist, &count, verbose);
6136
6137 if (count == 0)
6138 return (0);
6139
6140 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
6141 sa_init_selective_arg_t sharearg;
6142 sharearg.zhandle_arr = dslist;
6143 sharearg.zhandle_len = count;
6144 if ((ret = zfs_init_libshare_arg(zfs_get_handle(dslist[0]),
6145 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) {
6146 (void) fprintf(stderr,
6147 gettext("Could not initialize libshare, %d"), ret);
6148 return (ret);
6149 }
6150
6151 for (i = 0; i < count; i++) {
6152 if (verbose)
6153 report_mount_progress(i, count);
6154
6155 if (share_mount_one(dslist[i], op, flags, protocol,
6156 B_FALSE, options) != 0)
6157 ret = 1;
6158 zfs_close(dslist[i]);
6159 }
6160
6161 free(dslist);
6162 } else if (argc == 0) {
6163 struct mnttab entry;
6164
6165 if ((op == OP_SHARE) || (options != NULL)) {
6166 (void) fprintf(stderr, gettext("missing filesystem "
6167 "argument (specify -a for all)\n"));
6168 usage(B_FALSE);
6169 }
6170
6171 /*
6172 * When mount is given no arguments, go through /etc/mnttab and
6173 * display any active ZFS mounts. We hide any snapshots, since
6174 * they are controlled automatically.
6175 */
6176 rewind(mnttab_file);
6177 while (getmntent(mnttab_file, &entry) == 0) {
6178 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6179 strchr(entry.mnt_special, '@') != NULL)
6180 continue;
6181
6182 (void) printf("%-30s %s\n", entry.mnt_special,
6183 entry.mnt_mountp);
6184 }
6185
6186 } else {
6187 zfs_handle_t *zhp;
6188
6189 if (argc > 1) {
6190 (void) fprintf(stderr,
6191 gettext("too many arguments\n"));
6192 usage(B_FALSE);
6193 }
6194
6195 if ((zhp = zfs_open(g_zfs, argv[0],
6196 ZFS_TYPE_FILESYSTEM)) == NULL) {
6197 ret = 1;
6198 } else {
6199 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6200 options);
6201 zfs_close(zhp);
6202 }
6203 }
6204
6205 return (ret);
6206 }
6207
6208 /*
6209 * zfs mount -a [nfs]
6210 * zfs mount filesystem
6211 *
6212 * Mount all filesystems, or mount the given filesystem.
6213 */
6214 static int
6215 zfs_do_mount(int argc, char **argv)
6216 {
6217 return (share_mount(OP_MOUNT, argc, argv));
6218 }
6219
6220 /*
6221 * zfs share -a [nfs | smb]
6222 * zfs share filesystem
6223 *
6224 * Share all filesystems, or share the given filesystem.
6225 */
6226 static int
6227 zfs_do_share(int argc, char **argv)
6228 {
6229 return (share_mount(OP_SHARE, argc, argv));
6230 }
6231
6232 typedef struct unshare_unmount_node {
6233 zfs_handle_t *un_zhp;
6234 char *un_mountp;
6235 uu_avl_node_t un_avlnode;
6236 } unshare_unmount_node_t;
6237
6238 /* ARGSUSED */
6239 static int
6240 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6241 {
6242 const unshare_unmount_node_t *l = larg;
6243 const unshare_unmount_node_t *r = rarg;
6244
6245 return (strcmp(l->un_mountp, r->un_mountp));
6246 }
6247
6248 /*
6249 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6250 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem,
6251 * and unmount it appropriately.
6252 */
6253 static int
6254 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6255 {
6256 zfs_handle_t *zhp;
6257 int ret = 0;
6258 struct stat64 statbuf;
6259 struct extmnttab entry;
6260 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6261 ino_t path_inode;
6262
6263 /*
6264 * Search for the path in /etc/mnttab. Rather than looking for the
6265 * specific path, which can be fooled by non-standard paths (i.e. ".."
6266 * or "//"), we stat() the path and search for the corresponding
6267 * (major,minor) device pair.
6268 */
6269 if (stat64(path, &statbuf) != 0) {
6270 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6271 cmdname, path, strerror(errno));
6272 return (1);
6273 }
6274 path_inode = statbuf.st_ino;
6275
6276 /*
6277 * Search for the given (major,minor) pair in the mount table.
6278 */
6279 rewind(mnttab_file);
6280 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6281 if (entry.mnt_major == major(statbuf.st_dev) &&
6282 entry.mnt_minor == minor(statbuf.st_dev))
6283 break;
6284 }
6285 if (ret != 0) {
6286 if (op == OP_SHARE) {
6287 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6288 "currently mounted\n"), cmdname, path);
6289 return (1);
6290 }
6291 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"),
6292 path);
6293 if ((ret = umount2(path, flags)) != 0)
6294 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6295 strerror(errno));
6296 return (ret != 0);
6297 }
6298
6299 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6300 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6301 "filesystem\n"), cmdname, path);
6302 return (1);
6303 }
6304
6305 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6306 ZFS_TYPE_FILESYSTEM)) == NULL)
6307 return (1);
6308
6309 ret = 1;
6310 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6311 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6312 cmdname, path, strerror(errno));
6313 goto out;
6314 } else if (statbuf.st_ino != path_inode) {
6315 (void) fprintf(stderr, gettext("cannot "
6316 "%s '%s': not a mountpoint\n"), cmdname, path);
6317 goto out;
6318 }
6319
6320 if (op == OP_SHARE) {
6321 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6322 char smbshare_prop[ZFS_MAXPROPLEN];
6323
6324 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6325 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6326 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6327 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6328
6329 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6330 strcmp(smbshare_prop, "off") == 0) {
6331 (void) fprintf(stderr, gettext("cannot unshare "
6332 "'%s': legacy share\n"), path);
6333 (void) fprintf(stderr, gettext("use "
6334 "unshare(1M) to unshare this filesystem\n"));
6335 } else if (!zfs_is_shared(zhp)) {
6336 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6337 "not currently shared\n"), path);
6338 } else {
6339 ret = zfs_unshareall_bypath(zhp, path);
6340 }
6341 } else {
6342 char mtpt_prop[ZFS_MAXPROPLEN];
6343
6344 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6345 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6346
6347 if (is_manual) {
6348 ret = zfs_unmount(zhp, NULL, flags);
6349 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6350 (void) fprintf(stderr, gettext("cannot unmount "
6351 "'%s': legacy mountpoint\n"),
6352 zfs_get_name(zhp));
6353 (void) fprintf(stderr, gettext("use umount(1M) "
6354 "to unmount this filesystem\n"));
6355 } else {
6356 ret = zfs_unmountall(zhp, flags);
6357 }
6358 }
6359
6360 out:
6361 zfs_close(zhp);
6362
6363 return (ret != 0);
6364 }
6365
6366 /*
6367 * Generic callback for unsharing or unmounting a filesystem.
6368 */
6369 static int
6370 unshare_unmount(int op, int argc, char **argv)
6371 {
6372 int do_all = 0;
6373 int flags = 0;
6374 int ret = 0;
6375 int c;
6376 zfs_handle_t *zhp;
6377 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6378 char sharesmb[ZFS_MAXPROPLEN];
6379
6380 /* check options */
6381 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
6382 switch (c) {
6383 case 'a':
6384 do_all = 1;
6385 break;
6386 case 'f':
6387 flags = MS_FORCE;
6388 break;
6389 case '?':
6390 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6391 optopt);
6392 usage(B_FALSE);
6393 }
6394 }
6395
6396 argc -= optind;
6397 argv += optind;
6398
6399 if (do_all) {
6400 /*
6401 * We could make use of zfs_for_each() to walk all datasets in
6402 * the system, but this would be very inefficient, especially
6403 * since we would have to linearly search /etc/mnttab for each
6404 * one. Instead, do one pass through /etc/mnttab looking for
6405 * zfs entries and call zfs_unmount() for each one.
6406 *
6407 * Things get a little tricky if the administrator has created
6408 * mountpoints beneath other ZFS filesystems. In this case, we
6409 * have to unmount the deepest filesystems first. To accomplish
6410 * this, we place all the mountpoints in an AVL tree sorted by
6411 * the special type (dataset name), and walk the result in
6412 * reverse to make sure to get any snapshots first.
6413 */
6414 struct mnttab entry;
6415 uu_avl_pool_t *pool;
6416 uu_avl_t *tree = NULL;
6417 unshare_unmount_node_t *node;
6418 uu_avl_index_t idx;
6419 uu_avl_walk_t *walk;
6420
6421 if (argc != 0) {
6422 (void) fprintf(stderr, gettext("too many arguments\n"));
6423 usage(B_FALSE);
6424 }
6425
6426 if (((pool = uu_avl_pool_create("unmount_pool",
6427 sizeof (unshare_unmount_node_t),
6428 offsetof(unshare_unmount_node_t, un_avlnode),
6429 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6430 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6431 nomem();
6432
6433 rewind(mnttab_file);
6434 while (getmntent(mnttab_file, &entry) == 0) {
6435
6436 /* ignore non-ZFS entries */
6437 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6438 continue;
6439
6440 /* ignore snapshots */
6441 if (strchr(entry.mnt_special, '@') != NULL)
6442 continue;
6443
6444 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6445 ZFS_TYPE_FILESYSTEM)) == NULL) {
6446 ret = 1;
6447 continue;
6448 }
6449
6450 /*
6451 * Ignore datasets that are excluded/restricted by
6452 * parent pool name.
6453 */
6454 if (zpool_skip_pool(zfs_get_pool_name(zhp))) {
6455 zfs_close(zhp);
6456 continue;
6457 }
6458
6459 switch (op) {
6460 case OP_SHARE:
6461 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6462 nfs_mnt_prop,
6463 sizeof (nfs_mnt_prop),
6464 NULL, NULL, 0, B_FALSE) == 0);
6465 if (strcmp(nfs_mnt_prop, "off") != 0)
6466 break;
6467 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6468 nfs_mnt_prop,
6469 sizeof (nfs_mnt_prop),
6470 NULL, NULL, 0, B_FALSE) == 0);
6471 if (strcmp(nfs_mnt_prop, "off") == 0)
6472 continue;
6473 break;
6474 case OP_MOUNT:
6475 /* Ignore legacy mounts */
6476 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6477 nfs_mnt_prop,
6478 sizeof (nfs_mnt_prop),
6479 NULL, NULL, 0, B_FALSE) == 0);
6480 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6481 continue;
6482 /* Ignore canmount=noauto mounts */
6483 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6484 ZFS_CANMOUNT_NOAUTO)
6485 continue;
6486 default:
6487 break;
6488 }
6489
6490 node = safe_malloc(sizeof (unshare_unmount_node_t));
6491 node->un_zhp = zhp;
6492 node->un_mountp = safe_strdup(entry.mnt_mountp);
6493
6494 uu_avl_node_init(node, &node->un_avlnode, pool);
6495
6496 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6497 uu_avl_insert(tree, node, idx);
6498 } else {
6499 zfs_close(node->un_zhp);
6500 free(node->un_mountp);
6501 free(node);
6502 }
6503 }
6504
6505 /*
6506 * Walk the AVL tree in reverse, unmounting each filesystem and
6507 * removing it from the AVL tree in the process.
6508 */
6509 if ((walk = uu_avl_walk_start(tree,
6510 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6511 nomem();
6512
6513 while ((node = uu_avl_walk_next(walk)) != NULL) {
6514 uu_avl_remove(tree, node);
6515
6516 switch (op) {
6517 case OP_SHARE:
6518 if (zfs_unshareall_bypath(node->un_zhp,
6519 node->un_mountp) != 0)
6520 ret = 1;
6521 break;
6522
6523 case OP_MOUNT:
6524 if (zfs_unmount(node->un_zhp,
6525 node->un_mountp, flags) != 0)
6526 ret = 1;
6527 break;
6528 }
6529
6530 zfs_close(node->un_zhp);
6531 free(node->un_mountp);
6532 free(node);
6533 }
6534
6535 uu_avl_walk_end(walk);
6536 uu_avl_destroy(tree);
6537 uu_avl_pool_destroy(pool);
6538
6539 } else {
6540 if (argc != 1) {
6541 if (argc == 0)
6542 (void) fprintf(stderr,
6543 gettext("missing filesystem argument\n"));
6544 else
6545 (void) fprintf(stderr,
6546 gettext("too many arguments\n"));
6547 usage(B_FALSE);
6548 }
6549
6550 /*
6551 * We have an argument, but it may be a full path or a ZFS
6552 * filesystem. Pass full paths off to unmount_path() (shared by
6553 * manual_unmount), otherwise open the filesystem and pass to
6554 * zfs_unmount().
6555 */
6556 if (argv[0][0] == '/')
6557 return (unshare_unmount_path(op, argv[0],
6558 flags, B_FALSE));
6559
6560 if ((zhp = zfs_open(g_zfs, argv[0],
6561 ZFS_TYPE_FILESYSTEM)) == NULL)
6562 return (1);
6563
6564 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6565 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6566 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6567 NULL, 0, B_FALSE) == 0);
6568
6569 switch (op) {
6570 case OP_SHARE:
6571 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6572 nfs_mnt_prop,
6573 sizeof (nfs_mnt_prop),
6574 NULL, NULL, 0, B_FALSE) == 0);
6575 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6576 sharesmb, sizeof (sharesmb), NULL, NULL,
6577 0, B_FALSE) == 0);
6578
6579 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6580 strcmp(sharesmb, "off") == 0) {
6581 (void) fprintf(stderr, gettext("cannot "
6582 "unshare '%s': legacy share\n"),
6583 zfs_get_name(zhp));
6584 (void) fprintf(stderr, gettext("use "
6585 "unshare(1M) to unshare this "
6586 "filesystem\n"));
6587 ret = 1;
6588 } else if (!zfs_is_shared(zhp)) {
6589 (void) fprintf(stderr, gettext("cannot "
6590 "unshare '%s': not currently "
6591 "shared\n"), zfs_get_name(zhp));
6592 ret = 1;
6593 } else if (zfs_unshareall(zhp) != 0) {
6594 ret = 1;
6595 }
6596 break;
6597
6598 case OP_MOUNT:
6599 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6600 (void) fprintf(stderr, gettext("cannot "
6601 "unmount '%s': legacy "
6602 "mountpoint\n"), zfs_get_name(zhp));
6603 (void) fprintf(stderr, gettext("use "
6604 "umount(1M) to unmount this "
6605 "filesystem\n"));
6606 ret = 1;
6607 } else if (!zfs_is_mounted(zhp, NULL)) {
6608 (void) fprintf(stderr, gettext("cannot "
6609 "unmount '%s': not currently "
6610 "mounted\n"),
6611 zfs_get_name(zhp));
6612 ret = 1;
6613 } else if (zfs_unmountall(zhp, flags) != 0) {
6614 ret = 1;
6615 }
6616 break;
6617 }
6618
6619 zfs_close(zhp);
6620 }
6621
6622 return (ret);
6623 }
6624
6625 /*
6626 * zfs unmount -a
6627 * zfs unmount filesystem
6628 *
6629 * Unmount all filesystems, or a specific ZFS filesystem.
6630 */
6631 static int
6632 zfs_do_unmount(int argc, char **argv)
6633 {
6634 return (unshare_unmount(OP_MOUNT, argc, argv));
6635 }
6636
6637 /*
6638 * zfs unshare -a
6639 * zfs unshare filesystem
6640 *
6641 * Unshare all filesystems, or a specific ZFS filesystem.
6642 */
6643 static int
6644 zfs_do_unshare(int argc, char **argv)
6645 {
6646 return (unshare_unmount(OP_SHARE, argc, argv));
6647 }
6648
6649 /*
6650 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is
6651 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'.
6652 */
6653 static int
6654 manual_mount(int argc, char **argv)
6655 {
6656 zfs_handle_t *zhp;
6657 char mountpoint[ZFS_MAXPROPLEN];
6658 char mntopts[MNT_LINE_MAX] = { '\0' };
6659 int ret = 0;
6660 int c;
6661 int flags = 0;
6662 char *dataset, *path;
6663
6664 /* check options */
6665 while ((c = getopt(argc, argv, ":mo:O")) != -1) {
6666 switch (c) {
6667 case 'o':
6668 (void) strlcpy(mntopts, optarg, sizeof (mntopts));
6669 break;
6670 case 'O':
6671 flags |= MS_OVERLAY;
6672 break;
6673 case 'm':
6674 flags |= MS_NOMNTTAB;
6675 break;
6676 case ':':
6677 (void) fprintf(stderr, gettext("missing argument for "
6678 "'%c' option\n"), optopt);
6679 usage(B_FALSE);
6680 break;
6681 case '?':
6682 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6683 optopt);
6684 (void) fprintf(stderr, gettext("usage: mount [-o opts] "
6685 "<path>\n"));
6686 return (2);
6687 }
6688 }
6689
6690 argc -= optind;
6691 argv += optind;
6692
6693 /* check that we only have two arguments */
6694 if (argc != 2) {
6695 if (argc == 0)
6696 (void) fprintf(stderr, gettext("missing dataset "
6697 "argument\n"));
6698 else if (argc == 1)
6699 (void) fprintf(stderr,
6700 gettext("missing mountpoint argument\n"));
6701 else
6702 (void) fprintf(stderr, gettext("too many arguments\n"));
6703 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n");
6704 return (2);
6705 }
6706
6707 dataset = argv[0];
6708 path = argv[1];
6709
6710 /* try to open the dataset */
6711 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL)
6712 return (1);
6713
6714 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
6715 sizeof (mountpoint), NULL, NULL, 0, B_FALSE);
6716
6717 /* check for legacy mountpoint and complain appropriately */
6718 ret = 0;
6719 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) {
6720 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS,
6721 NULL, 0, mntopts, sizeof (mntopts)) != 0) {
6722 (void) fprintf(stderr, gettext("mount failed: %s\n"),
6723 strerror(errno));
6724 ret = 1;
6725 }
6726 } else {
6727 (void) fprintf(stderr, gettext("filesystem '%s' cannot be "
6728 "mounted using 'mount -F zfs'\n"), dataset);
6729 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' "
6730 "instead.\n"), path);
6731 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' "
6732 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n"));
6733 (void) fprintf(stderr, gettext("See zfs(1M) for more "
6734 "information.\n"));
6735 ret = 1;
6736 }
6737
6738 return (ret);
6739 }
6740
6741 /*
6742 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow
6743 * unmounts of non-legacy filesystems, as this is the dominant administrative
6744 * interface.
6745 */
6746 static int
6747 manual_unmount(int argc, char **argv)
6748 {
6749 int flags = 0;
6750 int c;
6751
6752 /* check options */
6753 while ((c = getopt(argc, argv, "f")) != -1) {
6754 switch (c) {
6755 case 'f':
6756 flags = MS_FORCE;
6757 break;
6758 case '?':
6759 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6760 optopt);
6761 (void) fprintf(stderr, gettext("usage: unmount [-f] "
6762 "<path>\n"));
6763 return (2);
6764 }
6765 }
6766
6767 argc -= optind;
6768 argv += optind;
6769
6770 /* check arguments */
6771 if (argc != 1) {
6772 if (argc == 0)
6773 (void) fprintf(stderr, gettext("missing path "
6774 "argument\n"));
6775 else
6776 (void) fprintf(stderr, gettext("too many arguments\n"));
6777 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n"));
6778 return (2);
6779 }
6780
6781 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE));
6782 }
6783
6784 static int
6785 find_command_idx(char *command, int *idx)
6786 {
6787 int i;
6788
6789 for (i = 0; i < NCOMMAND; i++) {
6790 if (command_table[i].name == NULL)
6791 continue;
6792
6793 if (strcmp(command, command_table[i].name) == 0) {
6794 *idx = i;
6795 return (0);
6796 }
6797 }
6798 return (1);
6799 }
6800
6801 static int
6802 zfs_do_diff(int argc, char **argv)
6803 {
6804 zfs_handle_t *zhp;
6805 int flags = 0;
6806 char *tosnap = NULL;
6807 char *fromsnap = NULL;
6808 char *atp, *copy;
6809 int err = 0;
6810 int c;
6811
6812 while ((c = getopt(argc, argv, "FHt")) != -1) {
6813 switch (c) {
6814 case 'F':
6815 flags |= ZFS_DIFF_CLASSIFY;
6816 break;
6817 case 'H':
6818 flags |= ZFS_DIFF_PARSEABLE;
6819 break;
6820 case 't':
6821 flags |= ZFS_DIFF_TIMESTAMP;
6822 break;
6823 default:
6824 (void) fprintf(stderr,
6825 gettext("invalid option '%c'\n"), optopt);
6826 usage(B_FALSE);
6827 }
6828 }
6829
6830 argc -= optind;
6831 argv += optind;
6832
6833 if (argc < 1) {
6834 (void) fprintf(stderr,
6835 gettext("must provide at least one snapshot name\n"));
6836 usage(B_FALSE);
6837 }
6838
6839 if (argc > 2) {
6840 (void) fprintf(stderr, gettext("too many arguments\n"));
6841 usage(B_FALSE);
6842 }
6843
6844 fromsnap = argv[0];
6845 tosnap = (argc == 2) ? argv[1] : NULL;
6846
6847 copy = NULL;
6848 if (*fromsnap != '@')
6849 copy = strdup(fromsnap);
6850 else if (tosnap)
6851 copy = strdup(tosnap);
6852 if (copy == NULL)
6853 usage(B_FALSE);
6854
6855 if ((atp = strchr(copy, '@')) != NULL)
6856 *atp = '\0';
6857
6858 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6859 return (1);
6860
6861 free(copy);
6862
6863 /*
6864 * Ignore SIGPIPE so that the library can give us
6865 * information on any failure
6866 */
6867 (void) sigignore(SIGPIPE);
6868
6869 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6870
6871 zfs_close(zhp);
6872
6873 return (err != 0);
6874 }
6875
6876 /*
6877 * zfs bookmark <fs@snap> <fs#bmark>
6878 *
6879 * Creates a bookmark with the given name from the given snapshot.
6880 */
6881 static int
6882 zfs_do_bookmark(int argc, char **argv)
6883 {
6884 char snapname[ZFS_MAX_DATASET_NAME_LEN];
6885 zfs_handle_t *zhp;
6886 nvlist_t *nvl;
6887 int ret = 0;
6888 int c;
6889
6890 /* check options */
6891 while ((c = getopt(argc, argv, "")) != -1) {
6892 switch (c) {
6893 case '?':
6894 (void) fprintf(stderr,
6895 gettext("invalid option '%c'\n"), optopt);
6896 goto usage;
6897 }
6898 }
6899
6900 argc -= optind;
6901 argv += optind;
6902
6903 /* check number of arguments */
6904 if (argc < 1) {
6905 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
6906 goto usage;
6907 }
6908 if (argc < 2) {
6909 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
6910 goto usage;
6911 }
6912
6913 if (strchr(argv[1], '#') == NULL) {
6914 (void) fprintf(stderr,
6915 gettext("invalid bookmark name '%s' -- "
6916 "must contain a '#'\n"), argv[1]);
6917 goto usage;
6918 }
6919
6920 if (argv[0][0] == '@') {
6921 /*
6922 * Snapshot name begins with @.
6923 * Default to same fs as bookmark.
6924 */
6925 (void) strncpy(snapname, argv[1], sizeof (snapname));
6926 *strchr(snapname, '#') = '\0';
6927 (void) strlcat(snapname, argv[0], sizeof (snapname));
6928 } else {
6929 (void) strncpy(snapname, argv[0], sizeof (snapname));
6930 }
6931 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
6932 if (zhp == NULL)
6933 goto usage;
6934 zfs_close(zhp);
6935
6936
6937 nvl = fnvlist_alloc();
6938 fnvlist_add_string(nvl, argv[1], snapname);
6939 ret = lzc_bookmark(nvl, NULL);
6940 fnvlist_free(nvl);
6941
6942 if (ret != 0) {
6943 const char *err_msg;
6944 char errbuf[1024];
6945
6946 (void) snprintf(errbuf, sizeof (errbuf),
6947 dgettext(TEXT_DOMAIN,
6948 "cannot create bookmark '%s'"), argv[1]);
6949
6950 switch (ret) {
6951 case EXDEV:
6952 err_msg = "bookmark is in a different pool";
6953 break;
6954 case EEXIST:
6955 err_msg = "bookmark exists";
6956 break;
6957 case EINVAL:
6958 err_msg = "invalid argument";
6959 break;
6960 case ENOTSUP:
6961 err_msg = "bookmark feature not enabled";
6962 break;
6963 case ENOSPC:
6964 err_msg = "out of space";
6965 break;
6966 default:
6967 err_msg = "unknown error";
6968 break;
6969 }
6970 (void) fprintf(stderr, "%s: %s\n", errbuf,
6971 dgettext(TEXT_DOMAIN, err_msg));
6972 }
6973
6974 return (ret != 0);
6975
6976 usage:
6977 usage(B_FALSE);
6978 return (-1);
6979 }
6980
6981 int
6982 main(int argc, char **argv)
6983 {
6984 int ret = 0;
6985 int i;
6986 char *progname;
6987 char *cmdname;
6988
6989 (void) setlocale(LC_ALL, "");
6990 (void) textdomain(TEXT_DOMAIN);
6991
6992 opterr = 0;
6993
6994 if ((g_zfs = libzfs_init()) == NULL) {
6995 (void) fprintf(stderr, gettext("internal error: failed to "
6996 "initialize ZFS library\n"));
6997 return (1);
6998 }
6999
7000 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
7001
7002 libzfs_print_on_error(g_zfs, B_TRUE);
7003
7004 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) {
7005 (void) fprintf(stderr, gettext("internal error: unable to "
7006 "open %s\n"), MNTTAB);
7007 return (1);
7008 }
7009
7010 /*
7011 * This command also doubles as the /etc/fs mount and unmount program.
7012 * Determine if we should take this behavior based on argv[0].
7013 */
7014 progname = basename(argv[0]);
7015 if (strcmp(progname, "mount") == 0) {
7016 ret = manual_mount(argc, argv);
7017 } else if (strcmp(progname, "umount") == 0) {
7018 ret = manual_unmount(argc, argv);
7019 } else {
7020 /*
7021 * Make sure the user has specified some command.
7022 */
7023 if (argc < 2) {
7024 (void) fprintf(stderr, gettext("missing command\n"));
7025 usage(B_FALSE);
7026 }
7027
7028 cmdname = argv[1];
7029
7030 /*
7031 * The 'umount' command is an alias for 'unmount'
7032 */
7033 if (strcmp(cmdname, "umount") == 0)
7034 cmdname = "unmount";
7035
7036 /*
7037 * The 'recv' command is an alias for 'receive'
7038 */
7039 if (strcmp(cmdname, "recv") == 0)
7040 cmdname = "receive";
7041
7042 /*
7043 * The 'snap' command is an alias for 'snapshot'
7044 */
7045 if (strcmp(cmdname, "snap") == 0)
7046 cmdname = "snapshot";
7047
7048 /*
7049 * Special case '-?'
7050 */
7051 if (strcmp(cmdname, "-?") == 0)
7052 usage(B_TRUE);
7053
7054 /*
7055 * Run the appropriate command.
7056 */
7057 libzfs_mnttab_cache(g_zfs, B_TRUE);
7058 if (find_command_idx(cmdname, &i) == 0) {
7059 current_command = &command_table[i];
7060 ret = command_table[i].func(argc - 1, argv + 1);
7061 } else if (strchr(cmdname, '=') != NULL) {
7062 verify(find_command_idx("set", &i) == 0);
7063 current_command = &command_table[i];
7064 ret = command_table[i].func(argc, argv);
7065 } else {
7066 (void) fprintf(stderr, gettext("unrecognized "
7067 "command '%s'\n"), cmdname);
7068 usage(B_FALSE);
7069 }
7070 libzfs_mnttab_cache(g_zfs, B_FALSE);
7071 }
7072
7073 (void) fclose(mnttab_file);
7074
7075 if (ret == 0 && log_history)
7076 (void) zpool_log_history(g_zfs, history_str);
7077
7078 libzfs_fini(g_zfs);
7079
7080 /*
7081 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
7082 * for the purposes of running ::findleaks.
7083 */
7084 if (getenv("ZFS_ABORT") != NULL) {
7085 (void) printf("dumping core by request\n");
7086 abort();
7087 }
7088
7089 return (ret);
7090 }
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