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7955 libshare needs to initialize only those datasets being modified by the consumer
[unleashed.git] / usr / src / cmd / zfs / zfs_main.c
blobe34a40a474c56c85ec0460106d040db398354d5f
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 if (cb->cb_prevsnap != NULL)
1085 free(cb->cb_prevsnap);
1086 /* this snap continues the current range */
1087 cb->cb_prevsnap = strdup(name);
1088 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1089 nomem();
1090 if (cb->cb_verbose) {
1091 if (cb->cb_parsable) {
1092 (void) printf("destroy\t%s\n", name);
1093 } else if (cb->cb_dryrun) {
1094 (void) printf(gettext("would destroy %s\n"),
1095 name);
1096 } else {
1097 (void) printf(gettext("will destroy %s\n"),
1098 name);
1099 }
1100 }
1101 } else if (cb->cb_firstsnap != NULL) {
1102 /* end of this range */
1103 uint64_t used = 0;
1104 err = lzc_snaprange_space(cb->cb_firstsnap,
1105 cb->cb_prevsnap, &used);
1106 cb->cb_snapused += used;
1107 free(cb->cb_firstsnap);
1108 cb->cb_firstsnap = NULL;
1109 free(cb->cb_prevsnap);
1110 cb->cb_prevsnap = NULL;
1111 }
1112 zfs_close(zhp);
1113 return (err);
1114 }
1115
1116 static int
1117 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1118 {
1119 int err = 0;
1120 assert(cb->cb_firstsnap == NULL);
1121 assert(cb->cb_prevsnap == NULL);
1122 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1123 if (cb->cb_firstsnap != NULL) {
1124 uint64_t used = 0;
1125 if (err == 0) {
1126 err = lzc_snaprange_space(cb->cb_firstsnap,
1127 cb->cb_prevsnap, &used);
1128 }
1129 cb->cb_snapused += used;
1130 free(cb->cb_firstsnap);
1131 cb->cb_firstsnap = NULL;
1132 free(cb->cb_prevsnap);
1133 cb->cb_prevsnap = NULL;
1134 }
1135 return (err);
1136 }
1137
1138 static int
1139 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1140 {
1141 destroy_cbdata_t *cb = arg;
1142 int err = 0;
1143
1144 /* Check for clones. */
1145 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1146 cb->cb_target = zhp;
1147 cb->cb_first = B_TRUE;
1148 err = zfs_iter_dependents(zhp, B_TRUE,
1149 destroy_check_dependent, cb);
1150 }
1151
1152 if (err == 0) {
1153 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1154 nomem();
1155 }
1156 zfs_close(zhp);
1157 return (err);
1158 }
1159
1160 static int
1161 gather_snapshots(zfs_handle_t *zhp, void *arg)
1162 {
1163 destroy_cbdata_t *cb = arg;
1164 int err = 0;
1165
1166 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1167 if (err == ENOENT)
1168 err = 0;
1169 if (err != 0)
1170 goto out;
1171
1172 if (cb->cb_verbose) {
1173 err = destroy_print_snapshots(zhp, cb);
1174 if (err != 0)
1175 goto out;
1176 }
1177
1178 if (cb->cb_recurse)
1179 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1180
1181 out:
1182 zfs_close(zhp);
1183 return (err);
1184 }
1185
1186 static int
1187 destroy_clones(destroy_cbdata_t *cb)
1188 {
1189 nvpair_t *pair;
1190 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1191 pair != NULL;
1192 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1193 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1194 ZFS_TYPE_SNAPSHOT);
1195 if (zhp != NULL) {
1196 boolean_t defer = cb->cb_defer_destroy;
1197 int err = 0;
1198
1199 /*
1200 * We can't defer destroy non-snapshots, so set it to
1201 * false while destroying the clones.
1202 */
1203 cb->cb_defer_destroy = B_FALSE;
1204 err = zfs_iter_dependents(zhp, B_FALSE,
1205 destroy_callback, cb);
1206 cb->cb_defer_destroy = defer;
1207 zfs_close(zhp);
1208 if (err != 0)
1209 return (err);
1210 }
1211 }
1212 return (0);
1213 }
1214
1215 static int
1216 zfs_do_destroy(int argc, char **argv)
1217 {
1218 destroy_cbdata_t cb = { 0 };
1219 int rv = 0;
1220 int err = 0;
1221 int c;
1222 zfs_handle_t *zhp = NULL;
1223 char *at, *pound;
1224 zfs_type_t type = ZFS_TYPE_DATASET;
1225
1226 /* check options */
1227 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1228 switch (c) {
1229 case 'v':
1230 cb.cb_verbose = B_TRUE;
1231 break;
1232 case 'p':
1233 cb.cb_verbose = B_TRUE;
1234 cb.cb_parsable = B_TRUE;
1235 break;
1236 case 'n':
1237 cb.cb_dryrun = B_TRUE;
1238 break;
1239 case 'd':
1240 cb.cb_defer_destroy = B_TRUE;
1241 type = ZFS_TYPE_SNAPSHOT;
1242 break;
1243 case 'f':
1244 cb.cb_force = B_TRUE;
1245 break;
1246 case 'r':
1247 cb.cb_recurse = B_TRUE;
1248 break;
1249 case 'R':
1250 cb.cb_recurse = B_TRUE;
1251 cb.cb_doclones = B_TRUE;
1252 break;
1253 case '?':
1254 default:
1255 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1256 optopt);
1257 usage(B_FALSE);
1258 }
1259 }
1260
1261 argc -= optind;
1262 argv += optind;
1263
1264 /* check number of arguments */
1265 if (argc == 0) {
1266 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1267 usage(B_FALSE);
1268 }
1269 if (argc > 1) {
1270 (void) fprintf(stderr, gettext("too many arguments\n"));
1271 usage(B_FALSE);
1272 }
1273
1274 at = strchr(argv[0], '@');
1275 pound = strchr(argv[0], '#');
1276 if (at != NULL) {
1277
1278 /* Build the list of snaps to destroy in cb_nvl. */
1279 cb.cb_nvl = fnvlist_alloc();
1280
1281 *at = '\0';
1282 zhp = zfs_open(g_zfs, argv[0],
1283 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1284 if (zhp == NULL)
1285 return (1);
1286
1287 cb.cb_snapspec = at + 1;
1288 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1289 cb.cb_error) {
1290 rv = 1;
1291 goto out;
1292 }
1293
1294 if (nvlist_empty(cb.cb_nvl)) {
1295 (void) fprintf(stderr, gettext("could not find any "
1296 "snapshots to destroy; check snapshot names.\n"));
1297 rv = 1;
1298 goto out;
1299 }
1300
1301 if (cb.cb_verbose) {
1302 char buf[16];
1303 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1304 if (cb.cb_parsable) {
1305 (void) printf("reclaim\t%llu\n",
1306 cb.cb_snapused);
1307 } else if (cb.cb_dryrun) {
1308 (void) printf(gettext("would reclaim %s\n"),
1309 buf);
1310 } else {
1311 (void) printf(gettext("will reclaim %s\n"),
1312 buf);
1313 }
1314 }
1315
1316 if (!cb.cb_dryrun) {
1317 if (cb.cb_doclones) {
1318 cb.cb_batchedsnaps = fnvlist_alloc();
1319 err = destroy_clones(&cb);
1320 if (err == 0) {
1321 err = zfs_destroy_snaps_nvl(g_zfs,
1322 cb.cb_batchedsnaps, B_FALSE);
1323 }
1324 if (err != 0) {
1325 rv = 1;
1326 goto out;
1327 }
1328 }
1329 if (err == 0) {
1330 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1331 cb.cb_defer_destroy);
1332 }
1333 }
1334
1335 if (err != 0)
1336 rv = 1;
1337 } else if (pound != NULL) {
1338 int err;
1339 nvlist_t *nvl;
1340
1341 if (cb.cb_dryrun) {
1342 (void) fprintf(stderr,
1343 "dryrun is not supported with bookmark\n");
1344 return (-1);
1345 }
1346
1347 if (cb.cb_defer_destroy) {
1348 (void) fprintf(stderr,
1349 "defer destroy is not supported with bookmark\n");
1350 return (-1);
1351 }
1352
1353 if (cb.cb_recurse) {
1354 (void) fprintf(stderr,
1355 "recursive is not supported with bookmark\n");
1356 return (-1);
1357 }
1358
1359 if (!zfs_bookmark_exists(argv[0])) {
1360 (void) fprintf(stderr, gettext("bookmark '%s' "
1361 "does not exist.\n"), argv[0]);
1362 return (1);
1363 }
1364
1365 nvl = fnvlist_alloc();
1366 fnvlist_add_boolean(nvl, argv[0]);
1367
1368 err = lzc_destroy_bookmarks(nvl, NULL);
1369 if (err != 0) {
1370 (void) zfs_standard_error(g_zfs, err,
1371 "cannot destroy bookmark");
1372 }
1373
1374 nvlist_free(cb.cb_nvl);
1375
1376 return (err);
1377 } else {
1378 /* Open the given dataset */
1379 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1380 return (1);
1381
1382 cb.cb_target = zhp;
1383
1384 /*
1385 * Perform an explicit check for pools before going any further.
1386 */
1387 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1388 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1389 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1390 "operation does not apply to pools\n"),
1391 zfs_get_name(zhp));
1392 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1393 "%s' to destroy all datasets in the pool\n"),
1394 zfs_get_name(zhp));
1395 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1396 "to destroy the pool itself\n"), zfs_get_name(zhp));
1397 rv = 1;
1398 goto out;
1399 }
1400
1401 /*
1402 * Check for any dependents and/or clones.
1403 */
1404 cb.cb_first = B_TRUE;
1405 if (!cb.cb_doclones &&
1406 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1407 &cb) != 0) {
1408 rv = 1;
1409 goto out;
1410 }
1411
1412 if (cb.cb_error) {
1413 rv = 1;
1414 goto out;
1415 }
1416
1417 cb.cb_batchedsnaps = fnvlist_alloc();
1418 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1419 &cb) != 0) {
1420 rv = 1;
1421 goto out;
1422 }
1423
1424 /*
1425 * Do the real thing. The callback will close the
1426 * handle regardless of whether it succeeds or not.
1427 */
1428 err = destroy_callback(zhp, &cb);
1429 zhp = NULL;
1430 if (err == 0) {
1431 err = zfs_destroy_snaps_nvl(g_zfs,
1432 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1433 }
1434 if (err != 0)
1435 rv = 1;
1436 }
1437
1438 out:
1439 fnvlist_free(cb.cb_batchedsnaps);
1440 fnvlist_free(cb.cb_nvl);
1441 if (zhp != NULL)
1442 zfs_close(zhp);
1443 return (rv);
1444 }
1445
1446 static boolean_t
1447 is_recvd_column(zprop_get_cbdata_t *cbp)
1448 {
1449 int i;
1450 zfs_get_column_t col;
1451
1452 for (i = 0; i < ZFS_GET_NCOLS &&
1453 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1454 if (col == GET_COL_RECVD)
1455 return (B_TRUE);
1456 return (B_FALSE);
1457 }
1458
1459 /*
1460 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1461 * < all | property[,property]... > < fs | snap | vol > ...
1462 *
1463 * -r recurse over any child datasets
1464 * -H scripted mode. Headers are stripped, and fields are separated
1465 * by tabs instead of spaces.
1466 * -o Set of fields to display. One of "name,property,value,
1467 * received,source". Default is "name,property,value,source".
1468 * "all" is an alias for all five.
1469 * -s Set of sources to allow. One of
1470 * "local,default,inherited,received,temporary,none". Default is
1471 * all six.
1472 * -p Display values in parsable (literal) format.
1473 *
1474 * Prints properties for the given datasets. The user can control which
1475 * columns to display as well as which property types to allow.
1476 */
1477
1478 /*
1479 * Invoked to display the properties for a single dataset.
1480 */
1481 static int
1482 get_callback(zfs_handle_t *zhp, void *data)
1483 {
1484 char buf[ZFS_MAXPROPLEN];
1485 char rbuf[ZFS_MAXPROPLEN];
1486 zprop_source_t sourcetype;
1487 char source[ZFS_MAX_DATASET_NAME_LEN];
1488 zprop_get_cbdata_t *cbp = data;
1489 nvlist_t *user_props = zfs_get_user_props(zhp);
1490 zprop_list_t *pl = cbp->cb_proplist;
1491 nvlist_t *propval;
1492 char *strval;
1493 char *sourceval;
1494 boolean_t received = is_recvd_column(cbp);
1495
1496 for (; pl != NULL; pl = pl->pl_next) {
1497 char *recvdval = NULL;
1498 /*
1499 * Skip the special fake placeholder. This will also skip over
1500 * the name property when 'all' is specified.
1501 */
1502 if (pl->pl_prop == ZFS_PROP_NAME &&
1503 pl == cbp->cb_proplist)
1504 continue;
1505
1506 if (pl->pl_prop != ZPROP_INVAL) {
1507 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1508 sizeof (buf), &sourcetype, source,
1509 sizeof (source),
1510 cbp->cb_literal) != 0) {
1511 if (pl->pl_all)
1512 continue;
1513 if (!zfs_prop_valid_for_type(pl->pl_prop,
1514 ZFS_TYPE_DATASET)) {
1515 (void) fprintf(stderr,
1516 gettext("No such property '%s'\n"),
1517 zfs_prop_to_name(pl->pl_prop));
1518 continue;
1519 }
1520 sourcetype = ZPROP_SRC_NONE;
1521 (void) strlcpy(buf, "-", sizeof (buf));
1522 }
1523
1524 if (received && (zfs_prop_get_recvd(zhp,
1525 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1526 cbp->cb_literal) == 0))
1527 recvdval = rbuf;
1528
1529 zprop_print_one_property(zfs_get_name(zhp), cbp,
1530 zfs_prop_to_name(pl->pl_prop),
1531 buf, sourcetype, source, recvdval);
1532 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1533 sourcetype = ZPROP_SRC_LOCAL;
1534
1535 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1536 buf, sizeof (buf), cbp->cb_literal) != 0) {
1537 sourcetype = ZPROP_SRC_NONE;
1538 (void) strlcpy(buf, "-", sizeof (buf));
1539 }
1540
1541 zprop_print_one_property(zfs_get_name(zhp), cbp,
1542 pl->pl_user_prop, buf, sourcetype, source, NULL);
1543 } else if (zfs_prop_written(pl->pl_user_prop)) {
1544 sourcetype = ZPROP_SRC_LOCAL;
1545
1546 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1547 buf, sizeof (buf), cbp->cb_literal) != 0) {
1548 sourcetype = ZPROP_SRC_NONE;
1549 (void) strlcpy(buf, "-", sizeof (buf));
1550 }
1551
1552 zprop_print_one_property(zfs_get_name(zhp), cbp,
1553 pl->pl_user_prop, buf, sourcetype, source, NULL);
1554 } else {
1555 if (nvlist_lookup_nvlist(user_props,
1556 pl->pl_user_prop, &propval) != 0) {
1557 if (pl->pl_all)
1558 continue;
1559 sourcetype = ZPROP_SRC_NONE;
1560 strval = "-";
1561 } else {
1562 verify(nvlist_lookup_string(propval,
1563 ZPROP_VALUE, &strval) == 0);
1564 verify(nvlist_lookup_string(propval,
1565 ZPROP_SOURCE, &sourceval) == 0);
1566
1567 if (strcmp(sourceval,
1568 zfs_get_name(zhp)) == 0) {
1569 sourcetype = ZPROP_SRC_LOCAL;
1570 } else if (strcmp(sourceval,
1571 ZPROP_SOURCE_VAL_RECVD) == 0) {
1572 sourcetype = ZPROP_SRC_RECEIVED;
1573 } else {
1574 sourcetype = ZPROP_SRC_INHERITED;
1575 (void) strlcpy(source,
1576 sourceval, sizeof (source));
1577 }
1578 }
1579
1580 if (received && (zfs_prop_get_recvd(zhp,
1581 pl->pl_user_prop, rbuf, sizeof (rbuf),
1582 cbp->cb_literal) == 0))
1583 recvdval = rbuf;
1584
1585 zprop_print_one_property(zfs_get_name(zhp), cbp,
1586 pl->pl_user_prop, strval, sourcetype,
1587 source, recvdval);
1588 }
1589 }
1590
1591 return (0);
1592 }
1593
1594 static int
1595 zfs_do_get(int argc, char **argv)
1596 {
1597 zprop_get_cbdata_t cb = { 0 };
1598 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1599 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK;
1600 char *value, *fields;
1601 int ret = 0;
1602 int limit = 0;
1603 zprop_list_t fake_name = { 0 };
1604
1605 /*
1606 * Set up default columns and sources.
1607 */
1608 cb.cb_sources = ZPROP_SRC_ALL;
1609 cb.cb_columns[0] = GET_COL_NAME;
1610 cb.cb_columns[1] = GET_COL_PROPERTY;
1611 cb.cb_columns[2] = GET_COL_VALUE;
1612 cb.cb_columns[3] = GET_COL_SOURCE;
1613 cb.cb_type = ZFS_TYPE_DATASET;
1614
1615 /* check options */
1616 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1617 switch (c) {
1618 case 'p':
1619 cb.cb_literal = B_TRUE;
1620 break;
1621 case 'd':
1622 limit = parse_depth(optarg, &flags);
1623 break;
1624 case 'r':
1625 flags |= ZFS_ITER_RECURSE;
1626 break;
1627 case 'H':
1628 cb.cb_scripted = B_TRUE;
1629 break;
1630 case ':':
1631 (void) fprintf(stderr, gettext("missing argument for "
1632 "'%c' option\n"), optopt);
1633 usage(B_FALSE);
1634 break;
1635 case 'o':
1636 /*
1637 * Process the set of columns to display. We zero out
1638 * the structure to give us a blank slate.
1639 */
1640 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1641 i = 0;
1642 while (*optarg != '\0') {
1643 static char *col_subopts[] =
1644 { "name", "property", "value", "received",
1645 "source", "all", NULL };
1646
1647 if (i == ZFS_GET_NCOLS) {
1648 (void) fprintf(stderr, gettext("too "
1649 "many fields given to -o "
1650 "option\n"));
1651 usage(B_FALSE);
1652 }
1653
1654 switch (getsubopt(&optarg, col_subopts,
1655 &value)) {
1656 case 0:
1657 cb.cb_columns[i++] = GET_COL_NAME;
1658 break;
1659 case 1:
1660 cb.cb_columns[i++] = GET_COL_PROPERTY;
1661 break;
1662 case 2:
1663 cb.cb_columns[i++] = GET_COL_VALUE;
1664 break;
1665 case 3:
1666 cb.cb_columns[i++] = GET_COL_RECVD;
1667 flags |= ZFS_ITER_RECVD_PROPS;
1668 break;
1669 case 4:
1670 cb.cb_columns[i++] = GET_COL_SOURCE;
1671 break;
1672 case 5:
1673 if (i > 0) {
1674 (void) fprintf(stderr,
1675 gettext("\"all\" conflicts "
1676 "with specific fields "
1677 "given to -o option\n"));
1678 usage(B_FALSE);
1679 }
1680 cb.cb_columns[0] = GET_COL_NAME;
1681 cb.cb_columns[1] = GET_COL_PROPERTY;
1682 cb.cb_columns[2] = GET_COL_VALUE;
1683 cb.cb_columns[3] = GET_COL_RECVD;
1684 cb.cb_columns[4] = GET_COL_SOURCE;
1685 flags |= ZFS_ITER_RECVD_PROPS;
1686 i = ZFS_GET_NCOLS;
1687 break;
1688 default:
1689 (void) fprintf(stderr,
1690 gettext("invalid column name "
1691 "'%s'\n"), value);
1692 usage(B_FALSE);
1693 }
1694 }
1695 break;
1696
1697 case 's':
1698 cb.cb_sources = 0;
1699 while (*optarg != '\0') {
1700 static char *source_subopts[] = {
1701 "local", "default", "inherited",
1702 "received", "temporary", "none",
1703 NULL };
1704
1705 switch (getsubopt(&optarg, source_subopts,
1706 &value)) {
1707 case 0:
1708 cb.cb_sources |= ZPROP_SRC_LOCAL;
1709 break;
1710 case 1:
1711 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1712 break;
1713 case 2:
1714 cb.cb_sources |= ZPROP_SRC_INHERITED;
1715 break;
1716 case 3:
1717 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1718 break;
1719 case 4:
1720 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1721 break;
1722 case 5:
1723 cb.cb_sources |= ZPROP_SRC_NONE;
1724 break;
1725 default:
1726 (void) fprintf(stderr,
1727 gettext("invalid source "
1728 "'%s'\n"), value);
1729 usage(B_FALSE);
1730 }
1731 }
1732 break;
1733
1734 case 't':
1735 types = 0;
1736 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1737 while (*optarg != '\0') {
1738 static char *type_subopts[] = { "filesystem",
1739 "volume", "snapshot", "bookmark",
1740 "all", NULL };
1741
1742 switch (getsubopt(&optarg, type_subopts,
1743 &value)) {
1744 case 0:
1745 types |= ZFS_TYPE_FILESYSTEM;
1746 break;
1747 case 1:
1748 types |= ZFS_TYPE_VOLUME;
1749 break;
1750 case 2:
1751 types |= ZFS_TYPE_SNAPSHOT;
1752 break;
1753 case 3:
1754 types |= ZFS_TYPE_BOOKMARK;
1755 break;
1756 case 4:
1757 types = ZFS_TYPE_DATASET |
1758 ZFS_TYPE_BOOKMARK;
1759 break;
1760
1761 default:
1762 (void) fprintf(stderr,
1763 gettext("invalid type '%s'\n"),
1764 value);
1765 usage(B_FALSE);
1766 }
1767 }
1768 break;
1769
1770 case '?':
1771 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1772 optopt);
1773 usage(B_FALSE);
1774 }
1775 }
1776
1777 argc -= optind;
1778 argv += optind;
1779
1780 if (argc < 1) {
1781 (void) fprintf(stderr, gettext("missing property "
1782 "argument\n"));
1783 usage(B_FALSE);
1784 }
1785
1786 fields = argv[0];
1787
1788 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1789 != 0)
1790 usage(B_FALSE);
1791
1792 argc--;
1793 argv++;
1794
1795 /*
1796 * As part of zfs_expand_proplist(), we keep track of the maximum column
1797 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1798 * need to know the maximum name length. However, the user likely did
1799 * not specify 'name' as one of the properties to fetch, so we need to
1800 * make sure we always include at least this property for
1801 * print_get_headers() to work properly.
1802 */
1803 if (cb.cb_proplist != NULL) {
1804 fake_name.pl_prop = ZFS_PROP_NAME;
1805 fake_name.pl_width = strlen(gettext("NAME"));
1806 fake_name.pl_next = cb.cb_proplist;
1807 cb.cb_proplist = &fake_name;
1808 }
1809
1810 cb.cb_first = B_TRUE;
1811
1812 /* run for each object */
1813 ret = zfs_for_each(argc, argv, flags, types, NULL,
1814 &cb.cb_proplist, limit, get_callback, &cb);
1815
1816 if (cb.cb_proplist == &fake_name)
1817 zprop_free_list(fake_name.pl_next);
1818 else
1819 zprop_free_list(cb.cb_proplist);
1820
1821 return (ret);
1822 }
1823
1824 /*
1825 * inherit [-rS] <property> <fs|vol> ...
1826 *
1827 * -r Recurse over all children
1828 * -S Revert to received value, if any
1829 *
1830 * For each dataset specified on the command line, inherit the given property
1831 * from its parent. Inheriting a property at the pool level will cause it to
1832 * use the default value. The '-r' flag will recurse over all children, and is
1833 * useful for setting a property on a hierarchy-wide basis, regardless of any
1834 * local modifications for each dataset.
1835 */
1836
1837 typedef struct inherit_cbdata {
1838 const char *cb_propname;
1839 boolean_t cb_received;
1840 } inherit_cbdata_t;
1841
1842 static int
1843 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1844 {
1845 inherit_cbdata_t *cb = data;
1846 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1847
1848 /*
1849 * If we're doing it recursively, then ignore properties that
1850 * are not valid for this type of dataset.
1851 */
1852 if (prop != ZPROP_INVAL &&
1853 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp)))
1854 return (0);
1855
1856 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1857 }
1858
1859 static int
1860 inherit_cb(zfs_handle_t *zhp, void *data)
1861 {
1862 inherit_cbdata_t *cb = data;
1863
1864 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1865 }
1866
1867 static int
1868 zfs_do_inherit(int argc, char **argv)
1869 {
1870 int c;
1871 zfs_prop_t prop;
1872 inherit_cbdata_t cb = { 0 };
1873 char *propname;
1874 int ret = 0;
1875 int flags = 0;
1876 boolean_t received = B_FALSE;
1877
1878 /* check options */
1879 while ((c = getopt(argc, argv, "rS")) != -1) {
1880 switch (c) {
1881 case 'r':
1882 flags |= ZFS_ITER_RECURSE;
1883 break;
1884 case 'S':
1885 received = B_TRUE;
1886 break;
1887 case '?':
1888 default:
1889 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1890 optopt);
1891 usage(B_FALSE);
1892 }
1893 }
1894
1895 argc -= optind;
1896 argv += optind;
1897
1898 /* check number of arguments */
1899 if (argc < 1) {
1900 (void) fprintf(stderr, gettext("missing property argument\n"));
1901 usage(B_FALSE);
1902 }
1903 if (argc < 2) {
1904 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1905 usage(B_FALSE);
1906 }
1907
1908 propname = argv[0];
1909 argc--;
1910 argv++;
1911
1912 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1913 if (zfs_prop_readonly(prop)) {
1914 (void) fprintf(stderr, gettext(
1915 "%s property is read-only\n"),
1916 propname);
1917 return (1);
1918 }
1919 if (!zfs_prop_inheritable(prop) && !received) {
1920 (void) fprintf(stderr, gettext("'%s' property cannot "
1921 "be inherited\n"), propname);
1922 if (prop == ZFS_PROP_QUOTA ||
1923 prop == ZFS_PROP_RESERVATION ||
1924 prop == ZFS_PROP_REFQUOTA ||
1925 prop == ZFS_PROP_REFRESERVATION) {
1926 (void) fprintf(stderr, gettext("use 'zfs set "
1927 "%s=none' to clear\n"), propname);
1928 (void) fprintf(stderr, gettext("use 'zfs "
1929 "inherit -S %s' to revert to received "
1930 "value\n"), propname);
1931 }
1932 return (1);
1933 }
1934 if (received && (prop == ZFS_PROP_VOLSIZE ||
1935 prop == ZFS_PROP_VERSION)) {
1936 (void) fprintf(stderr, gettext("'%s' property cannot "
1937 "be reverted to a received value\n"), propname);
1938 return (1);
1939 }
1940 } else if (!zfs_prop_user(propname)) {
1941 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1942 propname);
1943 usage(B_FALSE);
1944 }
1945
1946 cb.cb_propname = propname;
1947 cb.cb_received = received;
1948
1949 if (flags & ZFS_ITER_RECURSE) {
1950 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1951 NULL, NULL, 0, inherit_recurse_cb, &cb);
1952 } else {
1953 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1954 NULL, NULL, 0, inherit_cb, &cb);
1955 }
1956
1957 return (ret);
1958 }
1959
1960 typedef struct upgrade_cbdata {
1961 uint64_t cb_numupgraded;
1962 uint64_t cb_numsamegraded;
1963 uint64_t cb_numfailed;
1964 uint64_t cb_version;
1965 boolean_t cb_newer;
1966 boolean_t cb_foundone;
1967 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
1968 } upgrade_cbdata_t;
1969
1970 static int
1971 same_pool(zfs_handle_t *zhp, const char *name)
1972 {
1973 int len1 = strcspn(name, "/@");
1974 const char *zhname = zfs_get_name(zhp);
1975 int len2 = strcspn(zhname, "/@");
1976
1977 if (len1 != len2)
1978 return (B_FALSE);
1979 return (strncmp(name, zhname, len1) == 0);
1980 }
1981
1982 static int
1983 upgrade_list_callback(zfs_handle_t *zhp, void *data)
1984 {
1985 upgrade_cbdata_t *cb = data;
1986 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1987
1988 /* list if it's old/new */
1989 if ((!cb->cb_newer && version < ZPL_VERSION) ||
1990 (cb->cb_newer && version > ZPL_VERSION)) {
1991 char *str;
1992 if (cb->cb_newer) {
1993 str = gettext("The following filesystems are "
1994 "formatted using a newer software version and\n"
1995 "cannot be accessed on the current system.\n\n");
1996 } else {
1997 str = gettext("The following filesystems are "
1998 "out of date, and can be upgraded. After being\n"
1999 "upgraded, these filesystems (and any 'zfs send' "
2000 "streams generated from\n"
2001 "subsequent snapshots) will no longer be "
2002 "accessible by older software versions.\n\n");
2003 }
2004
2005 if (!cb->cb_foundone) {
2006 (void) puts(str);
2007 (void) printf(gettext("VER FILESYSTEM\n"));
2008 (void) printf(gettext("--- ------------\n"));
2009 cb->cb_foundone = B_TRUE;
2010 }
2011
2012 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
2013 }
2014
2015 return (0);
2016 }
2017
2018 static int
2019 upgrade_set_callback(zfs_handle_t *zhp, void *data)
2020 {
2021 upgrade_cbdata_t *cb = data;
2022 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2023 int needed_spa_version;
2024 int spa_version;
2025
2026 if (zfs_spa_version(zhp, &spa_version) < 0)
2027 return (-1);
2028
2029 needed_spa_version = zfs_spa_version_map(cb->cb_version);
2030
2031 if (needed_spa_version < 0)
2032 return (-1);
2033
2034 if (spa_version < needed_spa_version) {
2035 /* can't upgrade */
2036 (void) printf(gettext("%s: can not be "
2037 "upgraded; the pool version needs to first "
2038 "be upgraded\nto version %d\n\n"),
2039 zfs_get_name(zhp), needed_spa_version);
2040 cb->cb_numfailed++;
2041 return (0);
2042 }
2043
2044 /* upgrade */
2045 if (version < cb->cb_version) {
2046 char verstr[16];
2047 (void) snprintf(verstr, sizeof (verstr),
2048 "%llu", cb->cb_version);
2049 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
2050 /*
2051 * If they did "zfs upgrade -a", then we could
2052 * be doing ioctls to different pools. We need
2053 * to log this history once to each pool, and bypass
2054 * the normal history logging that happens in main().
2055 */
2056 (void) zpool_log_history(g_zfs, history_str);
2057 log_history = B_FALSE;
2058 }
2059 if (zfs_prop_set(zhp, "version", verstr) == 0)
2060 cb->cb_numupgraded++;
2061 else
2062 cb->cb_numfailed++;
2063 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
2064 } else if (version > cb->cb_version) {
2065 /* can't downgrade */
2066 (void) printf(gettext("%s: can not be downgraded; "
2067 "it is already at version %u\n"),
2068 zfs_get_name(zhp), version);
2069 cb->cb_numfailed++;
2070 } else {
2071 cb->cb_numsamegraded++;
2072 }
2073 return (0);
2074 }
2075
2076 /*
2077 * zfs upgrade
2078 * zfs upgrade -v
2079 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
2080 */
2081 static int
2082 zfs_do_upgrade(int argc, char **argv)
2083 {
2084 boolean_t all = B_FALSE;
2085 boolean_t showversions = B_FALSE;
2086 int ret = 0;
2087 upgrade_cbdata_t cb = { 0 };
2088 char c;
2089 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
2090
2091 /* check options */
2092 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
2093 switch (c) {
2094 case 'r':
2095 flags |= ZFS_ITER_RECURSE;
2096 break;
2097 case 'v':
2098 showversions = B_TRUE;
2099 break;
2100 case 'V':
2101 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2102 optarg, &cb.cb_version) != 0) {
2103 (void) fprintf(stderr,
2104 gettext("invalid version %s\n"), optarg);
2105 usage(B_FALSE);
2106 }
2107 break;
2108 case 'a':
2109 all = B_TRUE;
2110 break;
2111 case '?':
2112 default:
2113 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2114 optopt);
2115 usage(B_FALSE);
2116 }
2117 }
2118
2119 argc -= optind;
2120 argv += optind;
2121
2122 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2123 usage(B_FALSE);
2124 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2125 cb.cb_version || argc))
2126 usage(B_FALSE);
2127 if ((all || argc) && (showversions))
2128 usage(B_FALSE);
2129 if (all && argc)
2130 usage(B_FALSE);
2131
2132 if (showversions) {
2133 /* Show info on available versions. */
2134 (void) printf(gettext("The following filesystem versions are "
2135 "supported:\n\n"));
2136 (void) printf(gettext("VER DESCRIPTION\n"));
2137 (void) printf("--- -----------------------------------------"
2138 "---------------\n");
2139 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2140 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2141 (void) printf(gettext(" 3 Case insensitive and filesystem "
2142 "user identifier (FUID)\n"));
2143 (void) printf(gettext(" 4 userquota, groupquota "
2144 "properties\n"));
2145 (void) printf(gettext(" 5 System attributes\n"));
2146 (void) printf(gettext("\nFor more information on a particular "
2147 "version, including supported releases,\n"));
2148 (void) printf("see the ZFS Administration Guide.\n\n");
2149 ret = 0;
2150 } else if (argc || all) {
2151 /* Upgrade filesystems */
2152 if (cb.cb_version == 0)
2153 cb.cb_version = ZPL_VERSION;
2154 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2155 NULL, NULL, 0, upgrade_set_callback, &cb);
2156 (void) printf(gettext("%llu filesystems upgraded\n"),
2157 cb.cb_numupgraded);
2158 if (cb.cb_numsamegraded) {
2159 (void) printf(gettext("%llu filesystems already at "
2160 "this version\n"),
2161 cb.cb_numsamegraded);
2162 }
2163 if (cb.cb_numfailed != 0)
2164 ret = 1;
2165 } else {
2166 /* List old-version filesytems */
2167 boolean_t found;
2168 (void) printf(gettext("This system is currently running "
2169 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2170
2171 flags |= ZFS_ITER_RECURSE;
2172 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2173 NULL, NULL, 0, upgrade_list_callback, &cb);
2174
2175 found = cb.cb_foundone;
2176 cb.cb_foundone = B_FALSE;
2177 cb.cb_newer = B_TRUE;
2178
2179 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2180 NULL, NULL, 0, upgrade_list_callback, &cb);
2181
2182 if (!cb.cb_foundone && !found) {
2183 (void) printf(gettext("All filesystems are "
2184 "formatted with the current version.\n"));
2185 }
2186 }
2187
2188 return (ret);
2189 }
2190
2191 /*
2192 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2193 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2194 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2195 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2196 *
2197 * -H Scripted mode; elide headers and separate columns by tabs.
2198 * -i Translate SID to POSIX ID.
2199 * -n Print numeric ID instead of user/group name.
2200 * -o Control which fields to display.
2201 * -p Use exact (parsable) numeric output.
2202 * -s Specify sort columns, descending order.
2203 * -S Specify sort columns, ascending order.
2204 * -t Control which object types to display.
2205 *
2206 * Displays space consumed by, and quotas on, each user in the specified
2207 * filesystem or snapshot.
2208 */
2209
2210 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2211 enum us_field_types {
2212 USFIELD_TYPE,
2213 USFIELD_NAME,
2214 USFIELD_USED,
2215 USFIELD_QUOTA
2216 };
2217 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2218 static char *us_field_names[] = { "type", "name", "used", "quota" };
2219 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2220
2221 #define USTYPE_PSX_GRP (1 << 0)
2222 #define USTYPE_PSX_USR (1 << 1)
2223 #define USTYPE_SMB_GRP (1 << 2)
2224 #define USTYPE_SMB_USR (1 << 3)
2225 #define USTYPE_ALL \
2226 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2227
2228 static int us_type_bits[] = {
2229 USTYPE_PSX_GRP,
2230 USTYPE_PSX_USR,
2231 USTYPE_SMB_GRP,
2232 USTYPE_SMB_USR,
2233 USTYPE_ALL
2234 };
2235 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2236 "smbuser", "all" };
2237
2238 typedef struct us_node {
2239 nvlist_t *usn_nvl;
2240 uu_avl_node_t usn_avlnode;
2241 uu_list_node_t usn_listnode;
2242 } us_node_t;
2243
2244 typedef struct us_cbdata {
2245 nvlist_t **cb_nvlp;
2246 uu_avl_pool_t *cb_avl_pool;
2247 uu_avl_t *cb_avl;
2248 boolean_t cb_numname;
2249 boolean_t cb_nicenum;
2250 boolean_t cb_sid2posix;
2251 zfs_userquota_prop_t cb_prop;
2252 zfs_sort_column_t *cb_sortcol;
2253 size_t cb_width[USFIELD_LAST];
2254 } us_cbdata_t;
2255
2256 static boolean_t us_populated = B_FALSE;
2257
2258 typedef struct {
2259 zfs_sort_column_t *si_sortcol;
2260 boolean_t si_numname;
2261 } us_sort_info_t;
2262
2263 static int
2264 us_field_index(char *field)
2265 {
2266 int i;
2267
2268 for (i = 0; i < USFIELD_LAST; i++) {
2269 if (strcmp(field, us_field_names[i]) == 0)
2270 return (i);
2271 }
2272
2273 return (-1);
2274 }
2275
2276 static int
2277 us_compare(const void *larg, const void *rarg, void *unused)
2278 {
2279 const us_node_t *l = larg;
2280 const us_node_t *r = rarg;
2281 us_sort_info_t *si = (us_sort_info_t *)unused;
2282 zfs_sort_column_t *sortcol = si->si_sortcol;
2283 boolean_t numname = si->si_numname;
2284 nvlist_t *lnvl = l->usn_nvl;
2285 nvlist_t *rnvl = r->usn_nvl;
2286 int rc = 0;
2287 boolean_t lvb, rvb;
2288
2289 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2290 char *lvstr = "";
2291 char *rvstr = "";
2292 uint32_t lv32 = 0;
2293 uint32_t rv32 = 0;
2294 uint64_t lv64 = 0;
2295 uint64_t rv64 = 0;
2296 zfs_prop_t prop = sortcol->sc_prop;
2297 const char *propname = NULL;
2298 boolean_t reverse = sortcol->sc_reverse;
2299
2300 switch (prop) {
2301 case ZFS_PROP_TYPE:
2302 propname = "type";
2303 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2304 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2305 if (rv32 != lv32)
2306 rc = (rv32 < lv32) ? 1 : -1;
2307 break;
2308 case ZFS_PROP_NAME:
2309 propname = "name";
2310 if (numname) {
2311 (void) nvlist_lookup_uint64(lnvl, propname,
2312 &lv64);
2313 (void) nvlist_lookup_uint64(rnvl, propname,
2314 &rv64);
2315 if (rv64 != lv64)
2316 rc = (rv64 < lv64) ? 1 : -1;
2317 } else {
2318 (void) nvlist_lookup_string(lnvl, propname,
2319 &lvstr);
2320 (void) nvlist_lookup_string(rnvl, propname,
2321 &rvstr);
2322 rc = strcmp(lvstr, rvstr);
2323 }
2324 break;
2325 case ZFS_PROP_USED:
2326 case ZFS_PROP_QUOTA:
2327 if (!us_populated)
2328 break;
2329 if (prop == ZFS_PROP_USED)
2330 propname = "used";
2331 else
2332 propname = "quota";
2333 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2334 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2335 if (rv64 != lv64)
2336 rc = (rv64 < lv64) ? 1 : -1;
2337 break;
2338
2339 default:
2340 break;
2341 }
2342
2343 if (rc != 0) {
2344 if (rc < 0)
2345 return (reverse ? 1 : -1);
2346 else
2347 return (reverse ? -1 : 1);
2348 }
2349 }
2350
2351 /*
2352 * If entries still seem to be the same, check if they are of the same
2353 * type (smbentity is added only if we are doing SID to POSIX ID
2354 * translation where we can have duplicate type/name combinations).
2355 */
2356 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2357 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2358 lvb != rvb)
2359 return (lvb < rvb ? -1 : 1);
2360
2361 return (0);
2362 }
2363
2364 static inline const char *
2365 us_type2str(unsigned field_type)
2366 {
2367 switch (field_type) {
2368 case USTYPE_PSX_USR:
2369 return ("POSIX User");
2370 case USTYPE_PSX_GRP:
2371 return ("POSIX Group");
2372 case USTYPE_SMB_USR:
2373 return ("SMB User");
2374 case USTYPE_SMB_GRP:
2375 return ("SMB Group");
2376 default:
2377 return ("Undefined");
2378 }
2379 }
2380
2381 static int
2382 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2383 {
2384 us_cbdata_t *cb = (us_cbdata_t *)arg;
2385 zfs_userquota_prop_t prop = cb->cb_prop;
2386 char *name = NULL;
2387 char *propname;
2388 char sizebuf[32];
2389 us_node_t *node;
2390 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2391 uu_avl_t *avl = cb->cb_avl;
2392 uu_avl_index_t idx;
2393 nvlist_t *props;
2394 us_node_t *n;
2395 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2396 unsigned type = 0;
2397 const char *typestr;
2398 size_t namelen;
2399 size_t typelen;
2400 size_t sizelen;
2401 int typeidx, nameidx, sizeidx;
2402 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2403 boolean_t smbentity = B_FALSE;
2404
2405 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2406 nomem();
2407 node = safe_malloc(sizeof (us_node_t));
2408 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2409 node->usn_nvl = props;
2410
2411 if (domain != NULL && domain[0] != '\0') {
2412 /* SMB */
2413 char sid[MAXNAMELEN + 32];
2414 uid_t id;
2415 int err;
2416 int flag = IDMAP_REQ_FLG_USE_CACHE;
2417
2418 smbentity = B_TRUE;
2419
2420 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2421
2422 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2423 type = USTYPE_SMB_GRP;
2424 err = sid_to_id(sid, B_FALSE, &id);
2425 } else {
2426 type = USTYPE_SMB_USR;
2427 err = sid_to_id(sid, B_TRUE, &id);
2428 }
2429
2430 if (err == 0) {
2431 rid = id;
2432 if (!cb->cb_sid2posix) {
2433 if (type == USTYPE_SMB_USR) {
2434 (void) idmap_getwinnamebyuid(rid, flag,
2435 &name, NULL);
2436 } else {
2437 (void) idmap_getwinnamebygid(rid, flag,
2438 &name, NULL);
2439 }
2440 if (name == NULL)
2441 name = sid;
2442 }
2443 }
2444 }
2445
2446 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2447 /* POSIX or -i */
2448 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2449 type = USTYPE_PSX_GRP;
2450 if (!cb->cb_numname) {
2451 struct group *g;
2452
2453 if ((g = getgrgid(rid)) != NULL)
2454 name = g->gr_name;
2455 }
2456 } else {
2457 type = USTYPE_PSX_USR;
2458 if (!cb->cb_numname) {
2459 struct passwd *p;
2460
2461 if ((p = getpwuid(rid)) != NULL)
2462 name = p->pw_name;
2463 }
2464 }
2465 }
2466
2467 /*
2468 * Make sure that the type/name combination is unique when doing
2469 * SID to POSIX ID translation (hence changing the type from SMB to
2470 * POSIX).
2471 */
2472 if (cb->cb_sid2posix &&
2473 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2474 nomem();
2475
2476 /* Calculate/update width of TYPE field */
2477 typestr = us_type2str(type);
2478 typelen = strlen(gettext(typestr));
2479 typeidx = us_field_index("type");
2480 if (typelen > cb->cb_width[typeidx])
2481 cb->cb_width[typeidx] = typelen;
2482 if (nvlist_add_uint32(props, "type", type) != 0)
2483 nomem();
2484
2485 /* Calculate/update width of NAME field */
2486 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2487 if (nvlist_add_uint64(props, "name", rid) != 0)
2488 nomem();
2489 namelen = snprintf(NULL, 0, "%u", rid);
2490 } else {
2491 if (nvlist_add_string(props, "name", name) != 0)
2492 nomem();
2493 namelen = strlen(name);
2494 }
2495 nameidx = us_field_index("name");
2496 if (namelen > cb->cb_width[nameidx])
2497 cb->cb_width[nameidx] = namelen;
2498
2499 /*
2500 * Check if this type/name combination is in the list and update it;
2501 * otherwise add new node to the list.
2502 */
2503 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2504 uu_avl_insert(avl, node, idx);
2505 } else {
2506 nvlist_free(props);
2507 free(node);
2508 node = n;
2509 props = node->usn_nvl;
2510 }
2511
2512 /* Calculate/update width of USED/QUOTA fields */
2513 if (cb->cb_nicenum)
2514 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2515 else
2516 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space);
2517 sizelen = strlen(sizebuf);
2518 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2519 propname = "used";
2520 if (!nvlist_exists(props, "quota"))
2521 (void) nvlist_add_uint64(props, "quota", 0);
2522 } else {
2523 propname = "quota";
2524 if (!nvlist_exists(props, "used"))
2525 (void) nvlist_add_uint64(props, "used", 0);
2526 }
2527 sizeidx = us_field_index(propname);
2528 if (sizelen > cb->cb_width[sizeidx])
2529 cb->cb_width[sizeidx] = sizelen;
2530
2531 if (nvlist_add_uint64(props, propname, space) != 0)
2532 nomem();
2533
2534 return (0);
2535 }
2536
2537 static void
2538 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2539 size_t *width, us_node_t *node)
2540 {
2541 nvlist_t *nvl = node->usn_nvl;
2542 char valstr[MAXNAMELEN];
2543 boolean_t first = B_TRUE;
2544 int cfield = 0;
2545 int field;
2546 uint32_t ustype;
2547
2548 /* Check type */
2549 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2550 if (!(ustype & types))
2551 return;
2552
2553 while ((field = fields[cfield]) != USFIELD_LAST) {
2554 nvpair_t *nvp = NULL;
2555 data_type_t type;
2556 uint32_t val32;
2557 uint64_t val64;
2558 char *strval = NULL;
2559
2560 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2561 if (strcmp(nvpair_name(nvp),
2562 us_field_names[field]) == 0)
2563 break;
2564 }
2565
2566 type = nvpair_type(nvp);
2567 switch (type) {
2568 case DATA_TYPE_UINT32:
2569 (void) nvpair_value_uint32(nvp, &val32);
2570 break;
2571 case DATA_TYPE_UINT64:
2572 (void) nvpair_value_uint64(nvp, &val64);
2573 break;
2574 case DATA_TYPE_STRING:
2575 (void) nvpair_value_string(nvp, &strval);
2576 break;
2577 default:
2578 (void) fprintf(stderr, "invalid data type\n");
2579 }
2580
2581 switch (field) {
2582 case USFIELD_TYPE:
2583 strval = (char *)us_type2str(val32);
2584 break;
2585 case USFIELD_NAME:
2586 if (type == DATA_TYPE_UINT64) {
2587 (void) sprintf(valstr, "%llu", val64);
2588 strval = valstr;
2589 }
2590 break;
2591 case USFIELD_USED:
2592 case USFIELD_QUOTA:
2593 if (type == DATA_TYPE_UINT64) {
2594 if (parsable) {
2595 (void) sprintf(valstr, "%llu", val64);
2596 } else {
2597 zfs_nicenum(val64, valstr,
2598 sizeof (valstr));
2599 }
2600 if (field == USFIELD_QUOTA &&
2601 strcmp(valstr, "0") == 0)
2602 strval = "none";
2603 else
2604 strval = valstr;
2605 }
2606 break;
2607 }
2608
2609 if (!first) {
2610 if (scripted)
2611 (void) printf("\t");
2612 else
2613 (void) printf(" ");
2614 }
2615 if (scripted)
2616 (void) printf("%s", strval);
2617 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2618 (void) printf("%-*s", width[field], strval);
2619 else
2620 (void) printf("%*s", width[field], strval);
2621
2622 first = B_FALSE;
2623 cfield++;
2624 }
2625
2626 (void) printf("\n");
2627 }
2628
2629 static void
2630 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2631 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2632 {
2633 us_node_t *node;
2634 const char *col;
2635 int cfield = 0;
2636 int field;
2637
2638 if (!scripted) {
2639 boolean_t first = B_TRUE;
2640
2641 while ((field = fields[cfield]) != USFIELD_LAST) {
2642 col = gettext(us_field_hdr[field]);
2643 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2644 (void) printf(first ? "%-*s" : " %-*s",
2645 width[field], col);
2646 } else {
2647 (void) printf(first ? "%*s" : " %*s",
2648 width[field], col);
2649 }
2650 first = B_FALSE;
2651 cfield++;
2652 }
2653 (void) printf("\n");
2654 }
2655
2656 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2657 print_us_node(scripted, parsable, fields, types, width, node);
2658 if (rmnode)
2659 nvlist_free(node->usn_nvl);
2660 }
2661 }
2662
2663 static int
2664 zfs_do_userspace(int argc, char **argv)
2665 {
2666 zfs_handle_t *zhp;
2667 zfs_userquota_prop_t p;
2668 uu_avl_pool_t *avl_pool;
2669 uu_avl_t *avl_tree;
2670 uu_avl_walk_t *walk;
2671 char *delim;
2672 char deffields[] = "type,name,used,quota";
2673 char *ofield = NULL;
2674 char *tfield = NULL;
2675 int cfield = 0;
2676 int fields[256];
2677 int i;
2678 boolean_t scripted = B_FALSE;
2679 boolean_t prtnum = B_FALSE;
2680 boolean_t parsable = B_FALSE;
2681 boolean_t sid2posix = B_FALSE;
2682 int ret = 0;
2683 int c;
2684 zfs_sort_column_t *sortcol = NULL;
2685 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2686 us_cbdata_t cb;
2687 us_node_t *node;
2688 us_node_t *rmnode;
2689 uu_list_pool_t *listpool;
2690 uu_list_t *list;
2691 uu_avl_index_t idx = 0;
2692 uu_list_index_t idx2 = 0;
2693
2694 if (argc < 2)
2695 usage(B_FALSE);
2696
2697 if (strcmp(argv[0], "groupspace") == 0)
2698 /* Toggle default group types */
2699 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2700
2701 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2702 switch (c) {
2703 case 'n':
2704 prtnum = B_TRUE;
2705 break;
2706 case 'H':
2707 scripted = B_TRUE;
2708 break;
2709 case 'p':
2710 parsable = B_TRUE;
2711 break;
2712 case 'o':
2713 ofield = optarg;
2714 break;
2715 case 's':
2716 case 'S':
2717 if (zfs_add_sort_column(&sortcol, optarg,
2718 c == 's' ? B_FALSE : B_TRUE) != 0) {
2719 (void) fprintf(stderr,
2720 gettext("invalid field '%s'\n"), optarg);
2721 usage(B_FALSE);
2722 }
2723 break;
2724 case 't':
2725 tfield = optarg;
2726 break;
2727 case 'i':
2728 sid2posix = B_TRUE;
2729 break;
2730 case ':':
2731 (void) fprintf(stderr, gettext("missing argument for "
2732 "'%c' option\n"), optopt);
2733 usage(B_FALSE);
2734 break;
2735 case '?':
2736 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2737 optopt);
2738 usage(B_FALSE);
2739 }
2740 }
2741
2742 argc -= optind;
2743 argv += optind;
2744
2745 if (argc < 1) {
2746 (void) fprintf(stderr, gettext("missing dataset name\n"));
2747 usage(B_FALSE);
2748 }
2749 if (argc > 1) {
2750 (void) fprintf(stderr, gettext("too many arguments\n"));
2751 usage(B_FALSE);
2752 }
2753
2754 /* Use default output fields if not specified using -o */
2755 if (ofield == NULL)
2756 ofield = deffields;
2757 do {
2758 if ((delim = strchr(ofield, ',')) != NULL)
2759 *delim = '\0';
2760 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2761 (void) fprintf(stderr, gettext("invalid type '%s' "
2762 "for -o option\n"), ofield);
2763 return (-1);
2764 }
2765 if (delim != NULL)
2766 ofield = delim + 1;
2767 } while (delim != NULL);
2768 fields[cfield] = USFIELD_LAST;
2769
2770 /* Override output types (-t option) */
2771 if (tfield != NULL) {
2772 types = 0;
2773
2774 do {
2775 boolean_t found = B_FALSE;
2776
2777 if ((delim = strchr(tfield, ',')) != NULL)
2778 *delim = '\0';
2779 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2780 i++) {
2781 if (strcmp(tfield, us_type_names[i]) == 0) {
2782 found = B_TRUE;
2783 types |= us_type_bits[i];
2784 break;
2785 }
2786 }
2787 if (!found) {
2788 (void) fprintf(stderr, gettext("invalid type "
2789 "'%s' for -t option\n"), tfield);
2790 return (-1);
2791 }
2792 if (delim != NULL)
2793 tfield = delim + 1;
2794 } while (delim != NULL);
2795 }
2796
2797 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2798 return (1);
2799
2800 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2801 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2802 nomem();
2803 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2804 nomem();
2805
2806 /* Always add default sorting columns */
2807 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2808 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2809
2810 cb.cb_sortcol = sortcol;
2811 cb.cb_numname = prtnum;
2812 cb.cb_nicenum = !parsable;
2813 cb.cb_avl_pool = avl_pool;
2814 cb.cb_avl = avl_tree;
2815 cb.cb_sid2posix = sid2posix;
2816
2817 for (i = 0; i < USFIELD_LAST; i++)
2818 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2819
2820 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2821 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) &&
2822 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2823 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) &&
2824 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2825 continue;
2826 cb.cb_prop = p;
2827 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2828 return (ret);
2829 }
2830
2831 /* Sort the list */
2832 if ((node = uu_avl_first(avl_tree)) == NULL)
2833 return (0);
2834
2835 us_populated = B_TRUE;
2836
2837 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2838 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2839 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2840 uu_list_node_init(node, &node->usn_listnode, listpool);
2841
2842 while (node != NULL) {
2843 rmnode = node;
2844 node = uu_avl_next(avl_tree, node);
2845 uu_avl_remove(avl_tree, rmnode);
2846 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2847 uu_list_insert(list, rmnode, idx2);
2848 }
2849
2850 for (node = uu_list_first(list); node != NULL;
2851 node = uu_list_next(list, node)) {
2852 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2853
2854 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2855 uu_avl_insert(avl_tree, node, idx);
2856 }
2857
2858 uu_list_destroy(list);
2859 uu_list_pool_destroy(listpool);
2860
2861 /* Print and free node nvlist memory */
2862 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2863 cb.cb_avl);
2864
2865 zfs_free_sort_columns(sortcol);
2866
2867 /* Clean up the AVL tree */
2868 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2869 nomem();
2870
2871 while ((node = uu_avl_walk_next(walk)) != NULL) {
2872 uu_avl_remove(cb.cb_avl, node);
2873 free(node);
2874 }
2875
2876 uu_avl_walk_end(walk);
2877 uu_avl_destroy(avl_tree);
2878 uu_avl_pool_destroy(avl_pool);
2879
2880 return (ret);
2881 }
2882
2883 /*
2884 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ...
2885 * [-t type[,...]] [filesystem|volume|snapshot] ...
2886 *
2887 * -H Scripted mode; elide headers and separate columns by tabs.
2888 * -p Display values in parsable (literal) format.
2889 * -r Recurse over all children.
2890 * -d Limit recursion by depth.
2891 * -o Control which fields to display.
2892 * -s Specify sort columns, descending order.
2893 * -S Specify sort columns, ascending order.
2894 * -t Control which object types to display.
2895 *
2896 * When given no arguments, list all filesystems in the system.
2897 * Otherwise, list the specified datasets, optionally recursing down them if
2898 * '-r' is specified.
2899 */
2900 typedef struct list_cbdata {
2901 boolean_t cb_first;
2902 boolean_t cb_literal;
2903 boolean_t cb_scripted;
2904 zprop_list_t *cb_proplist;
2905 } list_cbdata_t;
2906
2907 /*
2908 * Given a list of columns to display, output appropriate headers for each one.
2909 */
2910 static void
2911 print_header(list_cbdata_t *cb)
2912 {
2913 zprop_list_t *pl = cb->cb_proplist;
2914 char headerbuf[ZFS_MAXPROPLEN];
2915 const char *header;
2916 int i;
2917 boolean_t first = B_TRUE;
2918 boolean_t right_justify;
2919
2920 for (; pl != NULL; pl = pl->pl_next) {
2921 if (!first) {
2922 (void) printf(" ");
2923 } else {
2924 first = B_FALSE;
2925 }
2926
2927 right_justify = B_FALSE;
2928 if (pl->pl_prop != ZPROP_INVAL) {
2929 header = zfs_prop_column_name(pl->pl_prop);
2930 right_justify = zfs_prop_align_right(pl->pl_prop);
2931 } else {
2932 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2933 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2934 headerbuf[i] = '\0';
2935 header = headerbuf;
2936 }
2937
2938 if (pl->pl_next == NULL && !right_justify)
2939 (void) printf("%s", header);
2940 else if (right_justify)
2941 (void) printf("%*s", pl->pl_width, header);
2942 else
2943 (void) printf("%-*s", pl->pl_width, header);
2944 }
2945
2946 (void) printf("\n");
2947 }
2948
2949 /*
2950 * Given a dataset and a list of fields, print out all the properties according
2951 * to the described layout.
2952 */
2953 static void
2954 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
2955 {
2956 zprop_list_t *pl = cb->cb_proplist;
2957 boolean_t first = B_TRUE;
2958 char property[ZFS_MAXPROPLEN];
2959 nvlist_t *userprops = zfs_get_user_props(zhp);
2960 nvlist_t *propval;
2961 char *propstr;
2962 boolean_t right_justify;
2963
2964 for (; pl != NULL; pl = pl->pl_next) {
2965 if (!first) {
2966 if (cb->cb_scripted)
2967 (void) printf("\t");
2968 else
2969 (void) printf(" ");
2970 } else {
2971 first = B_FALSE;
2972 }
2973
2974 if (pl->pl_prop == ZFS_PROP_NAME) {
2975 (void) strlcpy(property, zfs_get_name(zhp),
2976 sizeof (property));
2977 propstr = property;
2978 right_justify = zfs_prop_align_right(pl->pl_prop);
2979 } else if (pl->pl_prop != ZPROP_INVAL) {
2980 if (zfs_prop_get(zhp, pl->pl_prop, property,
2981 sizeof (property), NULL, NULL, 0,
2982 cb->cb_literal) != 0)
2983 propstr = "-";
2984 else
2985 propstr = property;
2986 right_justify = zfs_prop_align_right(pl->pl_prop);
2987 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
2988 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
2989 property, sizeof (property), cb->cb_literal) != 0)
2990 propstr = "-";
2991 else
2992 propstr = property;
2993 right_justify = B_TRUE;
2994 } else if (zfs_prop_written(pl->pl_user_prop)) {
2995 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
2996 property, sizeof (property), cb->cb_literal) != 0)
2997 propstr = "-";
2998 else
2999 propstr = property;
3000 right_justify = B_TRUE;
3001 } else {
3002 if (nvlist_lookup_nvlist(userprops,
3003 pl->pl_user_prop, &propval) != 0)
3004 propstr = "-";
3005 else
3006 verify(nvlist_lookup_string(propval,
3007 ZPROP_VALUE, &propstr) == 0);
3008 right_justify = B_FALSE;
3009 }
3010
3011 /*
3012 * If this is being called in scripted mode, or if this is the
3013 * last column and it is left-justified, don't include a width
3014 * format specifier.
3015 */
3016 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3017 (void) printf("%s", propstr);
3018 else if (right_justify)
3019 (void) printf("%*s", pl->pl_width, propstr);
3020 else
3021 (void) printf("%-*s", pl->pl_width, propstr);
3022 }
3023
3024 (void) printf("\n");
3025 }
3026
3027 /*
3028 * Generic callback function to list a dataset or snapshot.
3029 */
3030 static int
3031 list_callback(zfs_handle_t *zhp, void *data)
3032 {
3033 list_cbdata_t *cbp = data;
3034
3035 if (cbp->cb_first) {
3036 if (!cbp->cb_scripted)
3037 print_header(cbp);
3038 cbp->cb_first = B_FALSE;
3039 }
3040
3041 print_dataset(zhp, cbp);
3042
3043 return (0);
3044 }
3045
3046 static int
3047 zfs_do_list(int argc, char **argv)
3048 {
3049 int c;
3050 static char default_fields[] =
3051 "name,used,available,referenced,mountpoint";
3052 int types = ZFS_TYPE_DATASET;
3053 boolean_t types_specified = B_FALSE;
3054 char *fields = NULL;
3055 list_cbdata_t cb = { 0 };
3056 char *value;
3057 int limit = 0;
3058 int ret = 0;
3059 zfs_sort_column_t *sortcol = NULL;
3060 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3061
3062 /* check options */
3063 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3064 switch (c) {
3065 case 'o':
3066 fields = optarg;
3067 break;
3068 case 'p':
3069 cb.cb_literal = B_TRUE;
3070 flags |= ZFS_ITER_LITERAL_PROPS;
3071 break;
3072 case 'd':
3073 limit = parse_depth(optarg, &flags);
3074 break;
3075 case 'r':
3076 flags |= ZFS_ITER_RECURSE;
3077 break;
3078 case 'H':
3079 cb.cb_scripted = B_TRUE;
3080 break;
3081 case 's':
3082 if (zfs_add_sort_column(&sortcol, optarg,
3083 B_FALSE) != 0) {
3084 (void) fprintf(stderr,
3085 gettext("invalid property '%s'\n"), optarg);
3086 usage(B_FALSE);
3087 }
3088 break;
3089 case 'S':
3090 if (zfs_add_sort_column(&sortcol, optarg,
3091 B_TRUE) != 0) {
3092 (void) fprintf(stderr,
3093 gettext("invalid property '%s'\n"), optarg);
3094 usage(B_FALSE);
3095 }
3096 break;
3097 case 't':
3098 types = 0;
3099 types_specified = B_TRUE;
3100 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3101 while (*optarg != '\0') {
3102 static char *type_subopts[] = { "filesystem",
3103 "volume", "snapshot", "snap", "bookmark",
3104 "all", NULL };
3105
3106 switch (getsubopt(&optarg, type_subopts,
3107 &value)) {
3108 case 0:
3109 types |= ZFS_TYPE_FILESYSTEM;
3110 break;
3111 case 1:
3112 types |= ZFS_TYPE_VOLUME;
3113 break;
3114 case 2:
3115 case 3:
3116 types |= ZFS_TYPE_SNAPSHOT;
3117 break;
3118 case 4:
3119 types |= ZFS_TYPE_BOOKMARK;
3120 break;
3121 case 5:
3122 types = ZFS_TYPE_DATASET |
3123 ZFS_TYPE_BOOKMARK;
3124 break;
3125 default:
3126 (void) fprintf(stderr,
3127 gettext("invalid type '%s'\n"),
3128 value);
3129 usage(B_FALSE);
3130 }
3131 }
3132 break;
3133 case ':':
3134 (void) fprintf(stderr, gettext("missing argument for "
3135 "'%c' option\n"), optopt);
3136 usage(B_FALSE);
3137 break;
3138 case '?':
3139 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3140 optopt);
3141 usage(B_FALSE);
3142 }
3143 }
3144
3145 argc -= optind;
3146 argv += optind;
3147
3148 if (fields == NULL)
3149 fields = default_fields;
3150
3151 /*
3152 * If we are only going to list snapshot names and sort by name,
3153 * then we can use faster version.
3154 */
3155 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3156 flags |= ZFS_ITER_SIMPLE;
3157
3158 /*
3159 * If "-o space" and no types were specified, don't display snapshots.
3160 */
3161 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3162 types &= ~ZFS_TYPE_SNAPSHOT;
3163
3164 /*
3165 * If the user specifies '-o all', the zprop_get_list() doesn't
3166 * normally include the name of the dataset. For 'zfs list', we always
3167 * want this property to be first.
3168 */
3169 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3170 != 0)
3171 usage(B_FALSE);
3172
3173 cb.cb_first = B_TRUE;
3174
3175 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3176 limit, list_callback, &cb);
3177
3178 zprop_free_list(cb.cb_proplist);
3179 zfs_free_sort_columns(sortcol);
3180
3181 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3182 (void) printf(gettext("no datasets available\n"));
3183
3184 return (ret);
3185 }
3186
3187 /*
3188 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3189 * zfs rename [-f] -p <fs | vol> <fs | vol>
3190 * zfs rename -r <snap> <snap>
3191 *
3192 * Renames the given dataset to another of the same type.
3193 *
3194 * The '-p' flag creates all the non-existing ancestors of the target first.
3195 */
3196 /* ARGSUSED */
3197 static int
3198 zfs_do_rename(int argc, char **argv)
3199 {
3200 zfs_handle_t *zhp;
3201 int c;
3202 int ret = 0;
3203 boolean_t recurse = B_FALSE;
3204 boolean_t parents = B_FALSE;
3205 boolean_t force_unmount = B_FALSE;
3206
3207 /* check options */
3208 while ((c = getopt(argc, argv, "prf")) != -1) {
3209 switch (c) {
3210 case 'p':
3211 parents = B_TRUE;
3212 break;
3213 case 'r':
3214 recurse = B_TRUE;
3215 break;
3216 case 'f':
3217 force_unmount = B_TRUE;
3218 break;
3219 case '?':
3220 default:
3221 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3222 optopt);
3223 usage(B_FALSE);
3224 }
3225 }
3226
3227 argc -= optind;
3228 argv += optind;
3229
3230 /* check number of arguments */
3231 if (argc < 1) {
3232 (void) fprintf(stderr, gettext("missing source dataset "
3233 "argument\n"));
3234 usage(B_FALSE);
3235 }
3236 if (argc < 2) {
3237 (void) fprintf(stderr, gettext("missing target dataset "
3238 "argument\n"));
3239 usage(B_FALSE);
3240 }
3241 if (argc > 2) {
3242 (void) fprintf(stderr, gettext("too many arguments\n"));
3243 usage(B_FALSE);
3244 }
3245
3246 if (recurse && parents) {
3247 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3248 "exclusive\n"));
3249 usage(B_FALSE);
3250 }
3251
3252 if (recurse && strchr(argv[0], '@') == 0) {
3253 (void) fprintf(stderr, gettext("source dataset for recursive "
3254 "rename must be a snapshot\n"));
3255 usage(B_FALSE);
3256 }
3257
3258 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3259 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3260 return (1);
3261
3262 /* If we were asked and the name looks good, try to create ancestors. */
3263 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3264 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3265 zfs_close(zhp);
3266 return (1);
3267 }
3268
3269 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3270
3271 zfs_close(zhp);
3272 return (ret);
3273 }
3274
3275 /*
3276 * zfs promote <fs>
3277 *
3278 * Promotes the given clone fs to be the parent
3279 */
3280 /* ARGSUSED */
3281 static int
3282 zfs_do_promote(int argc, char **argv)
3283 {
3284 zfs_handle_t *zhp;
3285 int ret = 0;
3286
3287 /* check options */
3288 if (argc > 1 && argv[1][0] == '-') {
3289 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3290 argv[1][1]);
3291 usage(B_FALSE);
3292 }
3293
3294 /* check number of arguments */
3295 if (argc < 2) {
3296 (void) fprintf(stderr, gettext("missing clone filesystem"
3297 " argument\n"));
3298 usage(B_FALSE);
3299 }
3300 if (argc > 2) {
3301 (void) fprintf(stderr, gettext("too many arguments\n"));
3302 usage(B_FALSE);
3303 }
3304
3305 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3306 if (zhp == NULL)
3307 return (1);
3308
3309 ret = (zfs_promote(zhp) != 0);
3310
3311
3312 zfs_close(zhp);
3313 return (ret);
3314 }
3315
3316 /*
3317 * zfs rollback [-rRf] <snapshot>
3318 *
3319 * -r Delete any intervening snapshots before doing rollback
3320 * -R Delete any snapshots and their clones
3321 * -f ignored for backwards compatability
3322 *
3323 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3324 * since then and making it the active dataset. If more recent snapshots exist,
3325 * the command will complain unless the '-r' flag is given.
3326 */
3327 typedef struct rollback_cbdata {
3328 uint64_t cb_create;
3329 boolean_t cb_first;
3330 int cb_doclones;
3331 char *cb_target;
3332 int cb_error;
3333 boolean_t cb_recurse;
3334 } rollback_cbdata_t;
3335
3336 static int
3337 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3338 {
3339 rollback_cbdata_t *cbp = data;
3340
3341 if (cbp->cb_first && cbp->cb_recurse) {
3342 (void) fprintf(stderr, gettext("cannot rollback to "
3343 "'%s': clones of previous snapshots exist\n"),
3344 cbp->cb_target);
3345 (void) fprintf(stderr, gettext("use '-R' to "
3346 "force deletion of the following clones and "
3347 "dependents:\n"));
3348 cbp->cb_first = 0;
3349 cbp->cb_error = 1;
3350 }
3351
3352 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3353
3354 zfs_close(zhp);
3355 return (0);
3356 }
3357
3358 /*
3359 * Report any snapshots more recent than the one specified. Used when '-r' is
3360 * not specified. We reuse this same callback for the snapshot dependents - if
3361 * 'cb_dependent' is set, then this is a dependent and we should report it
3362 * without checking the transaction group.
3363 */
3364 static int
3365 rollback_check(zfs_handle_t *zhp, void *data)
3366 {
3367 rollback_cbdata_t *cbp = data;
3368
3369 if (cbp->cb_doclones) {
3370 zfs_close(zhp);
3371 return (0);
3372 }
3373
3374 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3375 if (cbp->cb_first && !cbp->cb_recurse) {
3376 (void) fprintf(stderr, gettext("cannot "
3377 "rollback to '%s': more recent snapshots "
3378 "or bookmarks exist\n"),
3379 cbp->cb_target);
3380 (void) fprintf(stderr, gettext("use '-r' to "
3381 "force deletion of the following "
3382 "snapshots and bookmarks:\n"));
3383 cbp->cb_first = 0;
3384 cbp->cb_error = 1;
3385 }
3386
3387 if (cbp->cb_recurse) {
3388 if (zfs_iter_dependents(zhp, B_TRUE,
3389 rollback_check_dependent, cbp) != 0) {
3390 zfs_close(zhp);
3391 return (-1);
3392 }
3393 } else {
3394 (void) fprintf(stderr, "%s\n",
3395 zfs_get_name(zhp));
3396 }
3397 }
3398 zfs_close(zhp);
3399 return (0);
3400 }
3401
3402 static int
3403 zfs_do_rollback(int argc, char **argv)
3404 {
3405 int ret = 0;
3406 int c;
3407 boolean_t force = B_FALSE;
3408 rollback_cbdata_t cb = { 0 };
3409 zfs_handle_t *zhp, *snap;
3410 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3411 char *delim;
3412
3413 /* check options */
3414 while ((c = getopt(argc, argv, "rRf")) != -1) {
3415 switch (c) {
3416 case 'r':
3417 cb.cb_recurse = 1;
3418 break;
3419 case 'R':
3420 cb.cb_recurse = 1;
3421 cb.cb_doclones = 1;
3422 break;
3423 case 'f':
3424 force = B_TRUE;
3425 break;
3426 case '?':
3427 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3428 optopt);
3429 usage(B_FALSE);
3430 }
3431 }
3432
3433 argc -= optind;
3434 argv += optind;
3435
3436 /* check number of arguments */
3437 if (argc < 1) {
3438 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3439 usage(B_FALSE);
3440 }
3441 if (argc > 1) {
3442 (void) fprintf(stderr, gettext("too many arguments\n"));
3443 usage(B_FALSE);
3444 }
3445
3446 /* open the snapshot */
3447 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3448 return (1);
3449
3450 /* open the parent dataset */
3451 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3452 verify((delim = strrchr(parentname, '@')) != NULL);
3453 *delim = '\0';
3454 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3455 zfs_close(snap);
3456 return (1);
3457 }
3458
3459 /*
3460 * Check for more recent snapshots and/or clones based on the presence
3461 * of '-r' and '-R'.
3462 */
3463 cb.cb_target = argv[0];
3464 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3465 cb.cb_first = B_TRUE;
3466 cb.cb_error = 0;
3467 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3468 goto out;
3469 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3470 goto out;
3471
3472 if ((ret = cb.cb_error) != 0)
3473 goto out;
3474
3475 /*
3476 * Rollback parent to the given snapshot.
3477 */
3478 ret = zfs_rollback(zhp, snap, force);
3479
3480 out:
3481 zfs_close(snap);
3482 zfs_close(zhp);
3483
3484 if (ret == 0)
3485 return (0);
3486 else
3487 return (1);
3488 }
3489
3490 /*
3491 * zfs set property=value ... { fs | snap | vol } ...
3492 *
3493 * Sets the given properties for all datasets specified on the command line.
3494 */
3495
3496 static int
3497 set_callback(zfs_handle_t *zhp, void *data)
3498 {
3499 nvlist_t *props = data;
3500
3501 if (zfs_prop_set_list(zhp, props) != 0) {
3502 switch (libzfs_errno(g_zfs)) {
3503 case EZFS_MOUNTFAILED:
3504 (void) fprintf(stderr, gettext("property may be set "
3505 "but unable to remount filesystem\n"));
3506 break;
3507 case EZFS_SHARENFSFAILED:
3508 (void) fprintf(stderr, gettext("property may be set "
3509 "but unable to reshare filesystem\n"));
3510 break;
3511 }
3512 return (1);
3513 }
3514 return (0);
3515 }
3516
3517 static int
3518 zfs_do_set(int argc, char **argv)
3519 {
3520 nvlist_t *props = NULL;
3521 int ds_start = -1; /* argv idx of first dataset arg */
3522 int ret = 0;
3523
3524 /* check for options */
3525 if (argc > 1 && argv[1][0] == '-') {
3526 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3527 argv[1][1]);
3528 usage(B_FALSE);
3529 }
3530
3531 /* check number of arguments */
3532 if (argc < 2) {
3533 (void) fprintf(stderr, gettext("missing arguments\n"));
3534 usage(B_FALSE);
3535 }
3536 if (argc < 3) {
3537 if (strchr(argv[1], '=') == NULL) {
3538 (void) fprintf(stderr, gettext("missing property=value "
3539 "argument(s)\n"));
3540 } else {
3541 (void) fprintf(stderr, gettext("missing dataset "
3542 "name(s)\n"));
3543 }
3544 usage(B_FALSE);
3545 }
3546
3547 /* validate argument order: prop=val args followed by dataset args */
3548 for (int i = 1; i < argc; i++) {
3549 if (strchr(argv[i], '=') != NULL) {
3550 if (ds_start > 0) {
3551 /* out-of-order prop=val argument */
3552 (void) fprintf(stderr, gettext("invalid "
3553 "argument order\n"), i);
3554 usage(B_FALSE);
3555 }
3556 } else if (ds_start < 0) {
3557 ds_start = i;
3558 }
3559 }
3560 if (ds_start < 0) {
3561 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3562 usage(B_FALSE);
3563 }
3564
3565 /* Populate a list of property settings */
3566 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3567 nomem();
3568 for (int i = 1; i < ds_start; i++) {
3569 if ((ret = parseprop(props, argv[i])) != 0)
3570 goto error;
3571 }
3572
3573 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3574 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3575
3576 error:
3577 nvlist_free(props);
3578 return (ret);
3579 }
3580
3581 typedef struct snap_cbdata {
3582 nvlist_t *sd_nvl;
3583 boolean_t sd_recursive;
3584 const char *sd_snapname;
3585 } snap_cbdata_t;
3586
3587 static int
3588 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3589 {
3590 snap_cbdata_t *sd = arg;
3591 char *name;
3592 int rv = 0;
3593 int error;
3594
3595 if (sd->sd_recursive &&
3596 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3597 zfs_close(zhp);
3598 return (0);
3599 }
3600
3601 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3602 if (error == -1)
3603 nomem();
3604 fnvlist_add_boolean(sd->sd_nvl, name);
3605 free(name);
3606
3607 if (sd->sd_recursive)
3608 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3609 zfs_close(zhp);
3610 return (rv);
3611 }
3612
3613 /*
3614 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3615 *
3616 * Creates a snapshot with the given name. While functionally equivalent to
3617 * 'zfs create', it is a separate command to differentiate intent.
3618 */
3619 static int
3620 zfs_do_snapshot(int argc, char **argv)
3621 {
3622 int ret = 0;
3623 char c;
3624 nvlist_t *props;
3625 snap_cbdata_t sd = { 0 };
3626 boolean_t multiple_snaps = B_FALSE;
3627
3628 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3629 nomem();
3630 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3631 nomem();
3632
3633 /* check options */
3634 while ((c = getopt(argc, argv, "ro:")) != -1) {
3635 switch (c) {
3636 case 'o':
3637 if (parseprop(props, optarg) != 0)
3638 return (1);
3639 break;
3640 case 'r':
3641 sd.sd_recursive = B_TRUE;
3642 multiple_snaps = B_TRUE;
3643 break;
3644 case '?':
3645 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3646 optopt);
3647 goto usage;
3648 }
3649 }
3650
3651 argc -= optind;
3652 argv += optind;
3653
3654 /* check number of arguments */
3655 if (argc < 1) {
3656 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3657 goto usage;
3658 }
3659
3660 if (argc > 1)
3661 multiple_snaps = B_TRUE;
3662 for (; argc > 0; argc--, argv++) {
3663 char *atp;
3664 zfs_handle_t *zhp;
3665
3666 atp = strchr(argv[0], '@');
3667 if (atp == NULL)
3668 goto usage;
3669 *atp = '\0';
3670 sd.sd_snapname = atp + 1;
3671 zhp = zfs_open(g_zfs, argv[0],
3672 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3673 if (zhp == NULL)
3674 goto usage;
3675 if (zfs_snapshot_cb(zhp, &sd) != 0)
3676 goto usage;
3677 }
3678
3679 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3680 nvlist_free(sd.sd_nvl);
3681 nvlist_free(props);
3682 if (ret != 0 && multiple_snaps)
3683 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3684 return (ret != 0);
3685
3686 usage:
3687 nvlist_free(sd.sd_nvl);
3688 nvlist_free(props);
3689 usage(B_FALSE);
3690 return (-1);
3691 }
3692
3693 /*
3694 * Send a backup stream to stdout.
3695 */
3696 static int
3697 zfs_do_send(int argc, char **argv)
3698 {
3699 char *fromname = NULL;
3700 char *toname = NULL;
3701 char *resume_token = NULL;
3702 char *cp;
3703 zfs_handle_t *zhp;
3704 sendflags_t flags = { 0 };
3705 int c, err;
3706 nvlist_t *dbgnv = NULL;
3707 boolean_t extraverbose = B_FALSE;
3708
3709 struct option long_options[] = {
3710 {"replicate", no_argument, NULL, 'R'},
3711 {"props", no_argument, NULL, 'p'},
3712 {"parsable", no_argument, NULL, 'P'},
3713 {"dedup", no_argument, NULL, 'D'},
3714 {"verbose", no_argument, NULL, 'v'},
3715 {"dryrun", no_argument, NULL, 'n'},
3716 {"large-block", no_argument, NULL, 'L'},
3717 {"embed", no_argument, NULL, 'e'},
3718 {"resume", required_argument, NULL, 't'},
3719 {"compressed", no_argument, NULL, 'c'},
3720 {0, 0, 0, 0}
3721 };
3722
3723 /* check options */
3724 while ((c = getopt_long(argc, argv, ":i:I:RbDpvnPLet:c", long_options,
3725 NULL)) != -1) {
3726 switch (c) {
3727 case 'i':
3728 if (fromname)
3729 usage(B_FALSE);
3730 fromname = optarg;
3731 break;
3732 case 'I':
3733 if (fromname)
3734 usage(B_FALSE);
3735 fromname = optarg;
3736 flags.doall = B_TRUE;
3737 break;
3738 case 'R':
3739 flags.replicate = B_TRUE;
3740 break;
3741 case 'p':
3742 flags.props = B_TRUE;
3743 break;
3744 case 'P':
3745 flags.parsable = B_TRUE;
3746 flags.verbose = B_TRUE;
3747 break;
3748 case 'v':
3749 if (flags.verbose)
3750 extraverbose = B_TRUE;
3751 flags.verbose = B_TRUE;
3752 flags.progress = B_TRUE;
3753 break;
3754 case 'D':
3755 flags.dedup = B_TRUE;
3756 break;
3757 case 'n':
3758 flags.dryrun = B_TRUE;
3759 break;
3760 case 'L':
3761 flags.largeblock = B_TRUE;
3762 break;
3763 case 'e':
3764 flags.embed_data = B_TRUE;
3765 break;
3766 case 't':
3767 resume_token = optarg;
3768 break;
3769 case 'c':
3770 flags.compress = B_TRUE;
3771 break;
3772 case ':':
3773 /*
3774 * If a parameter was not passed, optopt contains the
3775 * value that would normally lead us into the
3776 * appropriate case statement. If it's > 256, then this
3777 * must be a longopt and we should look at argv to get
3778 * the string. Otherwise it's just the character, so we
3779 * should use it directly.
3780 */
3781 if (optopt <= UINT8_MAX) {
3782 (void) fprintf(stderr,
3783 gettext("missing argument for '%c' "
3784 "option\n"), optopt);
3785 } else {
3786 (void) fprintf(stderr,
3787 gettext("missing argument for '%s' "
3788 "option\n"), argv[optind - 1]);
3789 }
3790 usage(B_FALSE);
3791 break;
3792 case '?':
3793 /*FALLTHROUGH*/
3794 default:
3795 /*
3796 * If an invalid flag was passed, optopt contains the
3797 * character if it was a short flag, or 0 if it was a
3798 * longopt.
3799 */
3800 if (optopt != 0) {
3801 (void) fprintf(stderr,
3802 gettext("invalid option '%c'\n"), optopt);
3803 } else {
3804 (void) fprintf(stderr,
3805 gettext("invalid option '%s'\n"),
3806 argv[optind - 1]);
3807
3808 }
3809 usage(B_FALSE);
3810 }
3811 }
3812
3813 argc -= optind;
3814 argv += optind;
3815
3816 if (resume_token != NULL) {
3817 if (fromname != NULL || flags.replicate || flags.props ||
3818 flags.dedup) {
3819 (void) fprintf(stderr,
3820 gettext("invalid flags combined with -t\n"));
3821 usage(B_FALSE);
3822 }
3823 if (argc != 0) {
3824 (void) fprintf(stderr, gettext("no additional "
3825 "arguments are permitted with -t\n"));
3826 usage(B_FALSE);
3827 }
3828 } else {
3829 if (argc < 1) {
3830 (void) fprintf(stderr,
3831 gettext("missing snapshot argument\n"));
3832 usage(B_FALSE);
3833 }
3834 if (argc > 1) {
3835 (void) fprintf(stderr, gettext("too many arguments\n"));
3836 usage(B_FALSE);
3837 }
3838 }
3839
3840 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
3841 (void) fprintf(stderr,
3842 gettext("Error: Stream can not be written to a terminal.\n"
3843 "You must redirect standard output.\n"));
3844 return (1);
3845 }
3846
3847 if (resume_token != NULL) {
3848 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
3849 resume_token));
3850 }
3851
3852 /*
3853 * Special case sending a filesystem, or from a bookmark.
3854 */
3855 if (strchr(argv[0], '@') == NULL ||
3856 (fromname && strchr(fromname, '#') != NULL)) {
3857 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
3858 enum lzc_send_flags lzc_flags = 0;
3859
3860 if (flags.replicate || flags.doall || flags.props ||
3861 flags.dedup || flags.dryrun || flags.verbose ||
3862 flags.progress) {
3863 (void) fprintf(stderr,
3864 gettext("Error: "
3865 "Unsupported flag with filesystem or bookmark.\n"));
3866 return (1);
3867 }
3868
3869 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
3870 if (zhp == NULL)
3871 return (1);
3872
3873 if (flags.largeblock)
3874 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
3875 if (flags.embed_data)
3876 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
3877 if (flags.compress)
3878 lzc_flags |= LZC_SEND_FLAG_COMPRESS;
3879
3880 if (fromname != NULL &&
3881 (fromname[0] == '#' || fromname[0] == '@')) {
3882 /*
3883 * Incremental source name begins with # or @.
3884 * Default to same fs as target.
3885 */
3886 (void) strncpy(frombuf, argv[0], sizeof (frombuf));
3887 cp = strchr(frombuf, '@');
3888 if (cp != NULL)
3889 *cp = '\0';
3890 (void) strlcat(frombuf, fromname, sizeof (frombuf));
3891 fromname = frombuf;
3892 }
3893 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags);
3894 zfs_close(zhp);
3895 return (err != 0);
3896 }
3897
3898 cp = strchr(argv[0], '@');
3899 *cp = '\0';
3900 toname = cp + 1;
3901 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3902 if (zhp == NULL)
3903 return (1);
3904
3905 /*
3906 * If they specified the full path to the snapshot, chop off
3907 * everything except the short name of the snapshot, but special
3908 * case if they specify the origin.
3909 */
3910 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3911 char origin[ZFS_MAX_DATASET_NAME_LEN];
3912 zprop_source_t src;
3913
3914 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3915 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3916
3917 if (strcmp(origin, fromname) == 0) {
3918 fromname = NULL;
3919 flags.fromorigin = B_TRUE;
3920 } else {
3921 *cp = '\0';
3922 if (cp != fromname && strcmp(argv[0], fromname)) {
3923 (void) fprintf(stderr,
3924 gettext("incremental source must be "
3925 "in same filesystem\n"));
3926 usage(B_FALSE);
3927 }
3928 fromname = cp + 1;
3929 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3930 (void) fprintf(stderr,
3931 gettext("invalid incremental source\n"));
3932 usage(B_FALSE);
3933 }
3934 }
3935 }
3936
3937 if (flags.replicate && fromname == NULL)
3938 flags.doall = B_TRUE;
3939
3940 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
3941 extraverbose ? &dbgnv : NULL);
3942
3943 if (extraverbose && dbgnv != NULL) {
3944 /*
3945 * dump_nvlist prints to stdout, but that's been
3946 * redirected to a file. Make it print to stderr
3947 * instead.
3948 */
3949 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3950 dump_nvlist(dbgnv, 0);
3951 nvlist_free(dbgnv);
3952 }
3953 zfs_close(zhp);
3954
3955 return (err != 0);
3956 }
3957
3958 /*
3959 * Restore a backup stream from stdin.
3960 */
3961 static int
3962 zfs_do_receive(int argc, char **argv)
3963 {
3964 int c, err = 0;
3965 recvflags_t flags = { 0 };
3966 boolean_t abort_resumable = B_FALSE;
3967
3968 nvlist_t *props;
3969 nvpair_t *nvp = NULL;
3970
3971 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3972 nomem();
3973
3974 /* check options */
3975 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) {
3976 switch (c) {
3977 case 'o':
3978 if (parseprop(props, optarg) != 0)
3979 return (1);
3980 break;
3981 case 'd':
3982 flags.isprefix = B_TRUE;
3983 break;
3984 case 'e':
3985 flags.isprefix = B_TRUE;
3986 flags.istail = B_TRUE;
3987 break;
3988 case 'n':
3989 flags.dryrun = B_TRUE;
3990 break;
3991 case 'u':
3992 flags.nomount = B_TRUE;
3993 break;
3994 case 'v':
3995 flags.verbose = B_TRUE;
3996 break;
3997 case 's':
3998 flags.resumable = B_TRUE;
3999 break;
4000 case 'F':
4001 flags.force = B_TRUE;
4002 break;
4003 case 'A':
4004 abort_resumable = B_TRUE;
4005 break;
4006 case ':':
4007 (void) fprintf(stderr, gettext("missing argument for "
4008 "'%c' option\n"), optopt);
4009 usage(B_FALSE);
4010 break;
4011 case '?':
4012 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4013 optopt);
4014 usage(B_FALSE);
4015 }
4016 }
4017
4018 argc -= optind;
4019 argv += optind;
4020
4021 /* check number of arguments */
4022 if (argc < 1) {
4023 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4024 usage(B_FALSE);
4025 }
4026 if (argc > 1) {
4027 (void) fprintf(stderr, gettext("too many arguments\n"));
4028 usage(B_FALSE);
4029 }
4030
4031 while ((nvp = nvlist_next_nvpair(props, nvp))) {
4032 if (strcmp(nvpair_name(nvp), "origin") != 0) {
4033 (void) fprintf(stderr, gettext("invalid option"));
4034 usage(B_FALSE);
4035 }
4036 }
4037
4038 if (abort_resumable) {
4039 if (flags.isprefix || flags.istail || flags.dryrun ||
4040 flags.resumable || flags.nomount) {
4041 (void) fprintf(stderr, gettext("invalid option"));
4042 usage(B_FALSE);
4043 }
4044
4045 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4046 (void) snprintf(namebuf, sizeof (namebuf),
4047 "%s/%%recv", argv[0]);
4048
4049 if (zfs_dataset_exists(g_zfs, namebuf,
4050 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4051 zfs_handle_t *zhp = zfs_open(g_zfs,
4052 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4053 if (zhp == NULL)
4054 return (1);
4055 err = zfs_destroy(zhp, B_FALSE);
4056 } else {
4057 zfs_handle_t *zhp = zfs_open(g_zfs,
4058 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4059 if (zhp == NULL)
4060 usage(B_FALSE);
4061 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4062 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4063 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4064 (void) fprintf(stderr,
4065 gettext("'%s' does not have any "
4066 "resumable receive state to abort\n"),
4067 argv[0]);
4068 return (1);
4069 }
4070 err = zfs_destroy(zhp, B_FALSE);
4071 }
4072
4073 return (err != 0);
4074 }
4075
4076 if (isatty(STDIN_FILENO)) {
4077 (void) fprintf(stderr,
4078 gettext("Error: Backup stream can not be read "
4079 "from a terminal.\n"
4080 "You must redirect standard input.\n"));
4081 return (1);
4082 }
4083 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4084
4085 return (err != 0);
4086 }
4087
4088 /*
4089 * allow/unallow stuff
4090 */
4091 /* copied from zfs/sys/dsl_deleg.h */
4092 #define ZFS_DELEG_PERM_CREATE "create"
4093 #define ZFS_DELEG_PERM_DESTROY "destroy"
4094 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4095 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4096 #define ZFS_DELEG_PERM_CLONE "clone"
4097 #define ZFS_DELEG_PERM_PROMOTE "promote"
4098 #define ZFS_DELEG_PERM_RENAME "rename"
4099 #define ZFS_DELEG_PERM_MOUNT "mount"
4100 #define ZFS_DELEG_PERM_SHARE "share"
4101 #define ZFS_DELEG_PERM_SEND "send"
4102 #define ZFS_DELEG_PERM_RECEIVE "receive"
4103 #define ZFS_DELEG_PERM_ALLOW "allow"
4104 #define ZFS_DELEG_PERM_USERPROP "userprop"
4105 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4106 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4107 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4108 #define ZFS_DELEG_PERM_USERUSED "userused"
4109 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4110 #define ZFS_DELEG_PERM_HOLD "hold"
4111 #define ZFS_DELEG_PERM_RELEASE "release"
4112 #define ZFS_DELEG_PERM_DIFF "diff"
4113 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4114
4115 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4116
4117 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4118 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4119 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4120 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4121 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4122 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4123 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4124 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4125 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4126 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4127 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4128 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4129 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4130 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4131 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4132 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4133 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4134
4135 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4136 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4137 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4138 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4139 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4140 { NULL, ZFS_DELEG_NOTE_NONE }
4141 };
4142
4143 /* permission structure */
4144 typedef struct deleg_perm {
4145 zfs_deleg_who_type_t dp_who_type;
4146 const char *dp_name;
4147 boolean_t dp_local;
4148 boolean_t dp_descend;
4149 } deleg_perm_t;
4150
4151 /* */
4152 typedef struct deleg_perm_node {
4153 deleg_perm_t dpn_perm;
4154
4155 uu_avl_node_t dpn_avl_node;
4156 } deleg_perm_node_t;
4157
4158 typedef struct fs_perm fs_perm_t;
4159
4160 /* permissions set */
4161 typedef struct who_perm {
4162 zfs_deleg_who_type_t who_type;
4163 const char *who_name; /* id */
4164 char who_ug_name[256]; /* user/group name */
4165 fs_perm_t *who_fsperm; /* uplink */
4166
4167 uu_avl_t *who_deleg_perm_avl; /* permissions */
4168 } who_perm_t;
4169
4170 /* */
4171 typedef struct who_perm_node {
4172 who_perm_t who_perm;
4173 uu_avl_node_t who_avl_node;
4174 } who_perm_node_t;
4175
4176 typedef struct fs_perm_set fs_perm_set_t;
4177 /* fs permissions */
4178 struct fs_perm {
4179 const char *fsp_name;
4180
4181 uu_avl_t *fsp_sc_avl; /* sets,create */
4182 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4183
4184 fs_perm_set_t *fsp_set; /* uplink */
4185 };
4186
4187 /* */
4188 typedef struct fs_perm_node {
4189 fs_perm_t fspn_fsperm;
4190 uu_avl_t *fspn_avl;
4191
4192 uu_list_node_t fspn_list_node;
4193 } fs_perm_node_t;
4194
4195 /* top level structure */
4196 struct fs_perm_set {
4197 uu_list_pool_t *fsps_list_pool;
4198 uu_list_t *fsps_list; /* list of fs_perms */
4199
4200 uu_avl_pool_t *fsps_named_set_avl_pool;
4201 uu_avl_pool_t *fsps_who_perm_avl_pool;
4202 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4203 };
4204
4205 static inline const char *
4206 deleg_perm_type(zfs_deleg_note_t note)
4207 {
4208 /* subcommands */
4209 switch (note) {
4210 /* SUBCOMMANDS */
4211 /* OTHER */
4212 case ZFS_DELEG_NOTE_GROUPQUOTA:
4213 case ZFS_DELEG_NOTE_GROUPUSED:
4214 case ZFS_DELEG_NOTE_USERPROP:
4215 case ZFS_DELEG_NOTE_USERQUOTA:
4216 case ZFS_DELEG_NOTE_USERUSED:
4217 /* other */
4218 return (gettext("other"));
4219 default:
4220 return (gettext("subcommand"));
4221 }
4222 }
4223
4224 static int
4225 who_type2weight(zfs_deleg_who_type_t who_type)
4226 {
4227 int res;
4228 switch (who_type) {
4229 case ZFS_DELEG_NAMED_SET_SETS:
4230 case ZFS_DELEG_NAMED_SET:
4231 res = 0;
4232 break;
4233 case ZFS_DELEG_CREATE_SETS:
4234 case ZFS_DELEG_CREATE:
4235 res = 1;
4236 break;
4237 case ZFS_DELEG_USER_SETS:
4238 case ZFS_DELEG_USER:
4239 res = 2;
4240 break;
4241 case ZFS_DELEG_GROUP_SETS:
4242 case ZFS_DELEG_GROUP:
4243 res = 3;
4244 break;
4245 case ZFS_DELEG_EVERYONE_SETS:
4246 case ZFS_DELEG_EVERYONE:
4247 res = 4;
4248 break;
4249 default:
4250 res = -1;
4251 }
4252
4253 return (res);
4254 }
4255
4256 /* ARGSUSED */
4257 static int
4258 who_perm_compare(const void *larg, const void *rarg, void *unused)
4259 {
4260 const who_perm_node_t *l = larg;
4261 const who_perm_node_t *r = rarg;
4262 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4263 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4264 int lweight = who_type2weight(ltype);
4265 int rweight = who_type2weight(rtype);
4266 int res = lweight - rweight;
4267 if (res == 0)
4268 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4269 ZFS_MAX_DELEG_NAME-1);
4270
4271 if (res == 0)
4272 return (0);
4273 if (res > 0)
4274 return (1);
4275 else
4276 return (-1);
4277 }
4278
4279 /* ARGSUSED */
4280 static int
4281 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4282 {
4283 const deleg_perm_node_t *l = larg;
4284 const deleg_perm_node_t *r = rarg;
4285 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4286 ZFS_MAX_DELEG_NAME-1);
4287
4288 if (res == 0)
4289 return (0);
4290
4291 if (res > 0)
4292 return (1);
4293 else
4294 return (-1);
4295 }
4296
4297 static inline void
4298 fs_perm_set_init(fs_perm_set_t *fspset)
4299 {
4300 bzero(fspset, sizeof (fs_perm_set_t));
4301
4302 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4303 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4304 NULL, UU_DEFAULT)) == NULL)
4305 nomem();
4306 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4307 UU_DEFAULT)) == NULL)
4308 nomem();
4309
4310 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4311 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4312 who_perm_node_t, who_avl_node), who_perm_compare,
4313 UU_DEFAULT)) == NULL)
4314 nomem();
4315
4316 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4317 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4318 who_perm_node_t, who_avl_node), who_perm_compare,
4319 UU_DEFAULT)) == NULL)
4320 nomem();
4321
4322 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4323 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4324 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4325 == NULL)
4326 nomem();
4327 }
4328
4329 static inline void fs_perm_fini(fs_perm_t *);
4330 static inline void who_perm_fini(who_perm_t *);
4331
4332 static inline void
4333 fs_perm_set_fini(fs_perm_set_t *fspset)
4334 {
4335 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4336
4337 while (node != NULL) {
4338 fs_perm_node_t *next_node =
4339 uu_list_next(fspset->fsps_list, node);
4340 fs_perm_t *fsperm = &node->fspn_fsperm;
4341 fs_perm_fini(fsperm);
4342 uu_list_remove(fspset->fsps_list, node);
4343 free(node);
4344 node = next_node;
4345 }
4346
4347 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4348 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4349 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4350 }
4351
4352 static inline void
4353 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4354 const char *name)
4355 {
4356 deleg_perm->dp_who_type = type;
4357 deleg_perm->dp_name = name;
4358 }
4359
4360 static inline void
4361 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4362 zfs_deleg_who_type_t type, const char *name)
4363 {
4364 uu_avl_pool_t *pool;
4365 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4366
4367 bzero(who_perm, sizeof (who_perm_t));
4368
4369 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4370 UU_DEFAULT)) == NULL)
4371 nomem();
4372
4373 who_perm->who_type = type;
4374 who_perm->who_name = name;
4375 who_perm->who_fsperm = fsperm;
4376 }
4377
4378 static inline void
4379 who_perm_fini(who_perm_t *who_perm)
4380 {
4381 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4382
4383 while (node != NULL) {
4384 deleg_perm_node_t *next_node =
4385 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4386
4387 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4388 free(node);
4389 node = next_node;
4390 }
4391
4392 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4393 }
4394
4395 static inline void
4396 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4397 {
4398 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4399 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4400
4401 bzero(fsperm, sizeof (fs_perm_t));
4402
4403 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4404 == NULL)
4405 nomem();
4406
4407 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4408 == NULL)
4409 nomem();
4410
4411 fsperm->fsp_set = fspset;
4412 fsperm->fsp_name = fsname;
4413 }
4414
4415 static inline void
4416 fs_perm_fini(fs_perm_t *fsperm)
4417 {
4418 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4419 while (node != NULL) {
4420 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4421 node);
4422 who_perm_t *who_perm = &node->who_perm;
4423 who_perm_fini(who_perm);
4424 uu_avl_remove(fsperm->fsp_sc_avl, node);
4425 free(node);
4426 node = next_node;
4427 }
4428
4429 node = uu_avl_first(fsperm->fsp_uge_avl);
4430 while (node != NULL) {
4431 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4432 node);
4433 who_perm_t *who_perm = &node->who_perm;
4434 who_perm_fini(who_perm);
4435 uu_avl_remove(fsperm->fsp_uge_avl, node);
4436 free(node);
4437 node = next_node;
4438 }
4439
4440 uu_avl_destroy(fsperm->fsp_sc_avl);
4441 uu_avl_destroy(fsperm->fsp_uge_avl);
4442 }
4443
4444 static void
4445 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4446 zfs_deleg_who_type_t who_type, const char *name, char locality)
4447 {
4448 uu_avl_index_t idx = 0;
4449
4450 deleg_perm_node_t *found_node = NULL;
4451 deleg_perm_t *deleg_perm = &node->dpn_perm;
4452
4453 deleg_perm_init(deleg_perm, who_type, name);
4454
4455 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4456 == NULL)
4457 uu_avl_insert(avl, node, idx);
4458 else {
4459 node = found_node;
4460 deleg_perm = &node->dpn_perm;
4461 }
4462
4463
4464 switch (locality) {
4465 case ZFS_DELEG_LOCAL:
4466 deleg_perm->dp_local = B_TRUE;
4467 break;
4468 case ZFS_DELEG_DESCENDENT:
4469 deleg_perm->dp_descend = B_TRUE;
4470 break;
4471 case ZFS_DELEG_NA:
4472 break;
4473 default:
4474 assert(B_FALSE); /* invalid locality */
4475 }
4476 }
4477
4478 static inline int
4479 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4480 {
4481 nvpair_t *nvp = NULL;
4482 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4483 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4484 zfs_deleg_who_type_t who_type = who_perm->who_type;
4485
4486 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4487 const char *name = nvpair_name(nvp);
4488 data_type_t type = nvpair_type(nvp);
4489 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4490 deleg_perm_node_t *node =
4491 safe_malloc(sizeof (deleg_perm_node_t));
4492
4493 assert(type == DATA_TYPE_BOOLEAN);
4494
4495 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4496 set_deleg_perm_node(avl, node, who_type, name, locality);
4497 }
4498
4499 return (0);
4500 }
4501
4502 static inline int
4503 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4504 {
4505 nvpair_t *nvp = NULL;
4506 fs_perm_set_t *fspset = fsperm->fsp_set;
4507
4508 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4509 nvlist_t *nvl2 = NULL;
4510 const char *name = nvpair_name(nvp);
4511 uu_avl_t *avl = NULL;
4512 uu_avl_pool_t *avl_pool = NULL;
4513 zfs_deleg_who_type_t perm_type = name[0];
4514 char perm_locality = name[1];
4515 const char *perm_name = name + 3;
4516 boolean_t is_set = B_TRUE;
4517 who_perm_t *who_perm = NULL;
4518
4519 assert('$' == name[2]);
4520
4521 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4522 return (-1);
4523
4524 switch (perm_type) {
4525 case ZFS_DELEG_CREATE:
4526 case ZFS_DELEG_CREATE_SETS:
4527 case ZFS_DELEG_NAMED_SET:
4528 case ZFS_DELEG_NAMED_SET_SETS:
4529 avl_pool = fspset->fsps_named_set_avl_pool;
4530 avl = fsperm->fsp_sc_avl;
4531 break;
4532 case ZFS_DELEG_USER:
4533 case ZFS_DELEG_USER_SETS:
4534 case ZFS_DELEG_GROUP:
4535 case ZFS_DELEG_GROUP_SETS:
4536 case ZFS_DELEG_EVERYONE:
4537 case ZFS_DELEG_EVERYONE_SETS:
4538 avl_pool = fspset->fsps_who_perm_avl_pool;
4539 avl = fsperm->fsp_uge_avl;
4540 break;
4541
4542 default:
4543 assert(!"unhandled zfs_deleg_who_type_t");
4544 }
4545
4546 if (is_set) {
4547 who_perm_node_t *found_node = NULL;
4548 who_perm_node_t *node = safe_malloc(
4549 sizeof (who_perm_node_t));
4550 who_perm = &node->who_perm;
4551 uu_avl_index_t idx = 0;
4552
4553 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4554 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4555
4556 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4557 == NULL) {
4558 if (avl == fsperm->fsp_uge_avl) {
4559 uid_t rid = 0;
4560 struct passwd *p = NULL;
4561 struct group *g = NULL;
4562 const char *nice_name = NULL;
4563
4564 switch (perm_type) {
4565 case ZFS_DELEG_USER_SETS:
4566 case ZFS_DELEG_USER:
4567 rid = atoi(perm_name);
4568 p = getpwuid(rid);
4569 if (p)
4570 nice_name = p->pw_name;
4571 break;
4572 case ZFS_DELEG_GROUP_SETS:
4573 case ZFS_DELEG_GROUP:
4574 rid = atoi(perm_name);
4575 g = getgrgid(rid);
4576 if (g)
4577 nice_name = g->gr_name;
4578 break;
4579
4580 default:
4581 break;
4582 }
4583
4584 if (nice_name != NULL)
4585 (void) strlcpy(
4586 node->who_perm.who_ug_name,
4587 nice_name, 256);
4588 }
4589
4590 uu_avl_insert(avl, node, idx);
4591 } else {
4592 node = found_node;
4593 who_perm = &node->who_perm;
4594 }
4595 }
4596
4597 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4598 }
4599
4600 return (0);
4601 }
4602
4603 static inline int
4604 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4605 {
4606 nvpair_t *nvp = NULL;
4607 uu_avl_index_t idx = 0;
4608
4609 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4610 nvlist_t *nvl2 = NULL;
4611 const char *fsname = nvpair_name(nvp);
4612 data_type_t type = nvpair_type(nvp);
4613 fs_perm_t *fsperm = NULL;
4614 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4615 if (node == NULL)
4616 nomem();
4617
4618 fsperm = &node->fspn_fsperm;
4619
4620 assert(DATA_TYPE_NVLIST == type);
4621
4622 uu_list_node_init(node, &node->fspn_list_node,
4623 fspset->fsps_list_pool);
4624
4625 idx = uu_list_numnodes(fspset->fsps_list);
4626 fs_perm_init(fsperm, fspset, fsname);
4627
4628 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4629 return (-1);
4630
4631 (void) parse_fs_perm(fsperm, nvl2);
4632
4633 uu_list_insert(fspset->fsps_list, node, idx);
4634 }
4635
4636 return (0);
4637 }
4638
4639 static inline const char *
4640 deleg_perm_comment(zfs_deleg_note_t note)
4641 {
4642 const char *str = "";
4643
4644 /* subcommands */
4645 switch (note) {
4646 /* SUBCOMMANDS */
4647 case ZFS_DELEG_NOTE_ALLOW:
4648 str = gettext("Must also have the permission that is being"
4649 "\n\t\t\t\tallowed");
4650 break;
4651 case ZFS_DELEG_NOTE_CLONE:
4652 str = gettext("Must also have the 'create' ability and 'mount'"
4653 "\n\t\t\t\tability in the origin file system");
4654 break;
4655 case ZFS_DELEG_NOTE_CREATE:
4656 str = gettext("Must also have the 'mount' ability");
4657 break;
4658 case ZFS_DELEG_NOTE_DESTROY:
4659 str = gettext("Must also have the 'mount' ability");
4660 break;
4661 case ZFS_DELEG_NOTE_DIFF:
4662 str = gettext("Allows lookup of paths within a dataset;"
4663 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4664 "\n\t\t\t\tin order to use zfs diff");
4665 break;
4666 case ZFS_DELEG_NOTE_HOLD:
4667 str = gettext("Allows adding a user hold to a snapshot");
4668 break;
4669 case ZFS_DELEG_NOTE_MOUNT:
4670 str = gettext("Allows mount/umount of ZFS datasets");
4671 break;
4672 case ZFS_DELEG_NOTE_PROMOTE:
4673 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4674 " 'promote' ability in the origin file system");
4675 break;
4676 case ZFS_DELEG_NOTE_RECEIVE:
4677 str = gettext("Must also have the 'mount' and 'create'"
4678 " ability");
4679 break;
4680 case ZFS_DELEG_NOTE_RELEASE:
4681 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4682 "might destroy the snapshot");
4683 break;
4684 case ZFS_DELEG_NOTE_RENAME:
4685 str = gettext("Must also have the 'mount' and 'create'"
4686 "\n\t\t\t\tability in the new parent");
4687 break;
4688 case ZFS_DELEG_NOTE_ROLLBACK:
4689 str = gettext("");
4690 break;
4691 case ZFS_DELEG_NOTE_SEND:
4692 str = gettext("");
4693 break;
4694 case ZFS_DELEG_NOTE_SHARE:
4695 str = gettext("Allows sharing file systems over NFS or SMB"
4696 "\n\t\t\t\tprotocols");
4697 break;
4698 case ZFS_DELEG_NOTE_SNAPSHOT:
4699 str = gettext("");
4700 break;
4701 /*
4702 * case ZFS_DELEG_NOTE_VSCAN:
4703 * str = gettext("");
4704 * break;
4705 */
4706 /* OTHER */
4707 case ZFS_DELEG_NOTE_GROUPQUOTA:
4708 str = gettext("Allows accessing any groupquota@... property");
4709 break;
4710 case ZFS_DELEG_NOTE_GROUPUSED:
4711 str = gettext("Allows reading any groupused@... property");
4712 break;
4713 case ZFS_DELEG_NOTE_USERPROP:
4714 str = gettext("Allows changing any user property");
4715 break;
4716 case ZFS_DELEG_NOTE_USERQUOTA:
4717 str = gettext("Allows accessing any userquota@... property");
4718 break;
4719 case ZFS_DELEG_NOTE_USERUSED:
4720 str = gettext("Allows reading any userused@... property");
4721 break;
4722 /* other */
4723 default:
4724 str = "";
4725 }
4726
4727 return (str);
4728 }
4729
4730 struct allow_opts {
4731 boolean_t local;
4732 boolean_t descend;
4733 boolean_t user;
4734 boolean_t group;
4735 boolean_t everyone;
4736 boolean_t create;
4737 boolean_t set;
4738 boolean_t recursive; /* unallow only */
4739 boolean_t prt_usage;
4740
4741 boolean_t prt_perms;
4742 char *who;
4743 char *perms;
4744 const char *dataset;
4745 };
4746
4747 static inline int
4748 prop_cmp(const void *a, const void *b)
4749 {
4750 const char *str1 = *(const char **)a;
4751 const char *str2 = *(const char **)b;
4752 return (strcmp(str1, str2));
4753 }
4754
4755 static void
4756 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4757 {
4758 const char *opt_desc[] = {
4759 "-h", gettext("show this help message and exit"),
4760 "-l", gettext("set permission locally"),
4761 "-d", gettext("set permission for descents"),
4762 "-u", gettext("set permission for user"),
4763 "-g", gettext("set permission for group"),
4764 "-e", gettext("set permission for everyone"),
4765 "-c", gettext("set create time permission"),
4766 "-s", gettext("define permission set"),
4767 /* unallow only */
4768 "-r", gettext("remove permissions recursively"),
4769 };
4770 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4771 size_t allow_size = unallow_size - 2;
4772 const char *props[ZFS_NUM_PROPS];
4773 int i;
4774 size_t count = 0;
4775 FILE *fp = requested ? stdout : stderr;
4776 zprop_desc_t *pdtbl = zfs_prop_get_table();
4777 const char *fmt = gettext("%-16s %-14s\t%s\n");
4778
4779 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4780 HELP_ALLOW));
4781 (void) fprintf(fp, gettext("Options:\n"));
4782 for (int i = 0; i < (un ? unallow_size : allow_size); i++) {
4783 const char *opt = opt_desc[i++];
4784 const char *optdsc = opt_desc[i];
4785 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4786 }
4787
4788 (void) fprintf(fp, gettext("\nThe following permissions are "
4789 "supported:\n\n"));
4790 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4791 gettext("NOTES"));
4792 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4793 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4794 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4795 const char *perm_type = deleg_perm_type(perm_note);
4796 const char *perm_comment = deleg_perm_comment(perm_note);
4797 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4798 }
4799
4800 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4801 zprop_desc_t *pd = &pdtbl[i];
4802 if (pd->pd_visible != B_TRUE)
4803 continue;
4804
4805 if (pd->pd_attr == PROP_READONLY)
4806 continue;
4807
4808 props[count++] = pd->pd_name;
4809 }
4810 props[count] = NULL;
4811
4812 qsort(props, count, sizeof (char *), prop_cmp);
4813
4814 for (i = 0; i < count; i++)
4815 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4816
4817 if (msg != NULL)
4818 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4819
4820 exit(requested ? 0 : 2);
4821 }
4822
4823 static inline const char *
4824 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4825 char **permsp)
4826 {
4827 if (un && argc == expected_argc - 1)
4828 *permsp = NULL;
4829 else if (argc == expected_argc)
4830 *permsp = argv[argc - 2];
4831 else
4832 allow_usage(un, B_FALSE,
4833 gettext("wrong number of parameters\n"));
4834
4835 return (argv[argc - 1]);
4836 }
4837
4838 static void
4839 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4840 {
4841 int uge_sum = opts->user + opts->group + opts->everyone;
4842 int csuge_sum = opts->create + opts->set + uge_sum;
4843 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4844 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4845
4846 if (uge_sum > 1)
4847 allow_usage(un, B_FALSE,
4848 gettext("-u, -g, and -e are mutually exclusive\n"));
4849
4850 if (opts->prt_usage) {
4851 if (argc == 0 && all_sum == 0)
4852 allow_usage(un, B_TRUE, NULL);
4853 else
4854 usage(B_FALSE);
4855 }
4856
4857 if (opts->set) {
4858 if (csuge_sum > 1)
4859 allow_usage(un, B_FALSE,
4860 gettext("invalid options combined with -s\n"));
4861
4862 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4863 if (argv[0][0] != '@')
4864 allow_usage(un, B_FALSE,
4865 gettext("invalid set name: missing '@' prefix\n"));
4866 opts->who = argv[0];
4867 } else if (opts->create) {
4868 if (ldcsuge_sum > 1)
4869 allow_usage(un, B_FALSE,
4870 gettext("invalid options combined with -c\n"));
4871 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4872 } else if (opts->everyone) {
4873 if (csuge_sum > 1)
4874 allow_usage(un, B_FALSE,
4875 gettext("invalid options combined with -e\n"));
4876 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4877 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4878 == 0) {
4879 opts->everyone = B_TRUE;
4880 argc--;
4881 argv++;
4882 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4883 } else if (argc == 1 && !un) {
4884 opts->prt_perms = B_TRUE;
4885 opts->dataset = argv[argc-1];
4886 } else {
4887 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4888 opts->who = argv[0];
4889 }
4890
4891 if (!opts->local && !opts->descend) {
4892 opts->local = B_TRUE;
4893 opts->descend = B_TRUE;
4894 }
4895 }
4896
4897 static void
4898 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4899 const char *who, char *perms, nvlist_t *top_nvl)
4900 {
4901 int i;
4902 char ld[2] = { '\0', '\0' };
4903 char who_buf[MAXNAMELEN + 32];
4904 char base_type = '\0';
4905 char set_type = '\0';
4906 nvlist_t *base_nvl = NULL;
4907 nvlist_t *set_nvl = NULL;
4908 nvlist_t *nvl;
4909
4910 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4911 nomem();
4912 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4913 nomem();
4914
4915 switch (type) {
4916 case ZFS_DELEG_NAMED_SET_SETS:
4917 case ZFS_DELEG_NAMED_SET:
4918 set_type = ZFS_DELEG_NAMED_SET_SETS;
4919 base_type = ZFS_DELEG_NAMED_SET;
4920 ld[0] = ZFS_DELEG_NA;
4921 break;
4922 case ZFS_DELEG_CREATE_SETS:
4923 case ZFS_DELEG_CREATE:
4924 set_type = ZFS_DELEG_CREATE_SETS;
4925 base_type = ZFS_DELEG_CREATE;
4926 ld[0] = ZFS_DELEG_NA;
4927 break;
4928 case ZFS_DELEG_USER_SETS:
4929 case ZFS_DELEG_USER:
4930 set_type = ZFS_DELEG_USER_SETS;
4931 base_type = ZFS_DELEG_USER;
4932 if (local)
4933 ld[0] = ZFS_DELEG_LOCAL;
4934 if (descend)
4935 ld[1] = ZFS_DELEG_DESCENDENT;
4936 break;
4937 case ZFS_DELEG_GROUP_SETS:
4938 case ZFS_DELEG_GROUP:
4939 set_type = ZFS_DELEG_GROUP_SETS;
4940 base_type = ZFS_DELEG_GROUP;
4941 if (local)
4942 ld[0] = ZFS_DELEG_LOCAL;
4943 if (descend)
4944 ld[1] = ZFS_DELEG_DESCENDENT;
4945 break;
4946 case ZFS_DELEG_EVERYONE_SETS:
4947 case ZFS_DELEG_EVERYONE:
4948 set_type = ZFS_DELEG_EVERYONE_SETS;
4949 base_type = ZFS_DELEG_EVERYONE;
4950 if (local)
4951 ld[0] = ZFS_DELEG_LOCAL;
4952 if (descend)
4953 ld[1] = ZFS_DELEG_DESCENDENT;
4954 break;
4955
4956 default:
4957 assert(set_type != '\0' && base_type != '\0');
4958 }
4959
4960 if (perms != NULL) {
4961 char *curr = perms;
4962 char *end = curr + strlen(perms);
4963
4964 while (curr < end) {
4965 char *delim = strchr(curr, ',');
4966 if (delim == NULL)
4967 delim = end;
4968 else
4969 *delim = '\0';
4970
4971 if (curr[0] == '@')
4972 nvl = set_nvl;
4973 else
4974 nvl = base_nvl;
4975
4976 (void) nvlist_add_boolean(nvl, curr);
4977 if (delim != end)
4978 *delim = ',';
4979 curr = delim + 1;
4980 }
4981
4982 for (i = 0; i < 2; i++) {
4983 char locality = ld[i];
4984 if (locality == 0)
4985 continue;
4986
4987 if (!nvlist_empty(base_nvl)) {
4988 if (who != NULL)
4989 (void) snprintf(who_buf,
4990 sizeof (who_buf), "%c%c$%s",
4991 base_type, locality, who);
4992 else
4993 (void) snprintf(who_buf,
4994 sizeof (who_buf), "%c%c$",
4995 base_type, locality);
4996
4997 (void) nvlist_add_nvlist(top_nvl, who_buf,
4998 base_nvl);
4999 }
5000
5001
5002 if (!nvlist_empty(set_nvl)) {
5003 if (who != NULL)
5004 (void) snprintf(who_buf,
5005 sizeof (who_buf), "%c%c$%s",
5006 set_type, locality, who);
5007 else
5008 (void) snprintf(who_buf,
5009 sizeof (who_buf), "%c%c$",
5010 set_type, locality);
5011
5012 (void) nvlist_add_nvlist(top_nvl, who_buf,
5013 set_nvl);
5014 }
5015 }
5016 } else {
5017 for (i = 0; i < 2; i++) {
5018 char locality = ld[i];
5019 if (locality == 0)
5020 continue;
5021
5022 if (who != NULL)
5023 (void) snprintf(who_buf, sizeof (who_buf),
5024 "%c%c$%s", base_type, locality, who);
5025 else
5026 (void) snprintf(who_buf, sizeof (who_buf),
5027 "%c%c$", base_type, locality);
5028 (void) nvlist_add_boolean(top_nvl, who_buf);
5029
5030 if (who != NULL)
5031 (void) snprintf(who_buf, sizeof (who_buf),
5032 "%c%c$%s", set_type, locality, who);
5033 else
5034 (void) snprintf(who_buf, sizeof (who_buf),
5035 "%c%c$", set_type, locality);
5036 (void) nvlist_add_boolean(top_nvl, who_buf);
5037 }
5038 }
5039 }
5040
5041 static int
5042 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5043 {
5044 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5045 nomem();
5046
5047 if (opts->set) {
5048 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5049 opts->descend, opts->who, opts->perms, *nvlp);
5050 } else if (opts->create) {
5051 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5052 opts->descend, NULL, opts->perms, *nvlp);
5053 } else if (opts->everyone) {
5054 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5055 opts->descend, NULL, opts->perms, *nvlp);
5056 } else {
5057 char *curr = opts->who;
5058 char *end = curr + strlen(curr);
5059
5060 while (curr < end) {
5061 const char *who;
5062 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5063 char *endch;
5064 char *delim = strchr(curr, ',');
5065 char errbuf[256];
5066 char id[64];
5067 struct passwd *p = NULL;
5068 struct group *g = NULL;
5069
5070 uid_t rid;
5071 if (delim == NULL)
5072 delim = end;
5073 else
5074 *delim = '\0';
5075
5076 rid = (uid_t)strtol(curr, &endch, 0);
5077 if (opts->user) {
5078 who_type = ZFS_DELEG_USER;
5079 if (*endch != '\0')
5080 p = getpwnam(curr);
5081 else
5082 p = getpwuid(rid);
5083
5084 if (p != NULL)
5085 rid = p->pw_uid;
5086 else {
5087 (void) snprintf(errbuf, 256, gettext(
5088 "invalid user %s"), curr);
5089 allow_usage(un, B_TRUE, errbuf);
5090 }
5091 } else if (opts->group) {
5092 who_type = ZFS_DELEG_GROUP;
5093 if (*endch != '\0')
5094 g = getgrnam(curr);
5095 else
5096 g = getgrgid(rid);
5097
5098 if (g != NULL)
5099 rid = g->gr_gid;
5100 else {
5101 (void) snprintf(errbuf, 256, gettext(
5102 "invalid group %s"), curr);
5103 allow_usage(un, B_TRUE, errbuf);
5104 }
5105 } else {
5106 if (*endch != '\0') {
5107 p = getpwnam(curr);
5108 } else {
5109 p = getpwuid(rid);
5110 }
5111
5112 if (p == NULL) {
5113 if (*endch != '\0') {
5114 g = getgrnam(curr);
5115 } else {
5116 g = getgrgid(rid);
5117 }
5118 }
5119
5120 if (p != NULL) {
5121 who_type = ZFS_DELEG_USER;
5122 rid = p->pw_uid;
5123 } else if (g != NULL) {
5124 who_type = ZFS_DELEG_GROUP;
5125 rid = g->gr_gid;
5126 } else {
5127 (void) snprintf(errbuf, 256, gettext(
5128 "invalid user/group %s"), curr);
5129 allow_usage(un, B_TRUE, errbuf);
5130 }
5131 }
5132
5133 (void) sprintf(id, "%u", rid);
5134 who = id;
5135
5136 store_allow_perm(who_type, opts->local,
5137 opts->descend, who, opts->perms, *nvlp);
5138 curr = delim + 1;
5139 }
5140 }
5141
5142 return (0);
5143 }
5144
5145 static void
5146 print_set_creat_perms(uu_avl_t *who_avl)
5147 {
5148 const char *sc_title[] = {
5149 gettext("Permission sets:\n"),
5150 gettext("Create time permissions:\n"),
5151 NULL
5152 };
5153 const char **title_ptr = sc_title;
5154 who_perm_node_t *who_node = NULL;
5155 int prev_weight = -1;
5156
5157 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5158 who_node = uu_avl_next(who_avl, who_node)) {
5159 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5160 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5161 const char *who_name = who_node->who_perm.who_name;
5162 int weight = who_type2weight(who_type);
5163 boolean_t first = B_TRUE;
5164 deleg_perm_node_t *deleg_node;
5165
5166 if (prev_weight != weight) {
5167 (void) printf(*title_ptr++);
5168 prev_weight = weight;
5169 }
5170
5171 if (who_name == NULL || strnlen(who_name, 1) == 0)
5172 (void) printf("\t");
5173 else
5174 (void) printf("\t%s ", who_name);
5175
5176 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5177 deleg_node = uu_avl_next(avl, deleg_node)) {
5178 if (first) {
5179 (void) printf("%s",
5180 deleg_node->dpn_perm.dp_name);
5181 first = B_FALSE;
5182 } else
5183 (void) printf(",%s",
5184 deleg_node->dpn_perm.dp_name);
5185 }
5186
5187 (void) printf("\n");
5188 }
5189 }
5190
5191 static void
5192 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5193 const char *title)
5194 {
5195 who_perm_node_t *who_node = NULL;
5196 boolean_t prt_title = B_TRUE;
5197 uu_avl_walk_t *walk;
5198
5199 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5200 nomem();
5201
5202 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5203 const char *who_name = who_node->who_perm.who_name;
5204 const char *nice_who_name = who_node->who_perm.who_ug_name;
5205 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5206 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5207 char delim = ' ';
5208 deleg_perm_node_t *deleg_node;
5209 boolean_t prt_who = B_TRUE;
5210
5211 for (deleg_node = uu_avl_first(avl);
5212 deleg_node != NULL;
5213 deleg_node = uu_avl_next(avl, deleg_node)) {
5214 if (local != deleg_node->dpn_perm.dp_local ||
5215 descend != deleg_node->dpn_perm.dp_descend)
5216 continue;
5217
5218 if (prt_who) {
5219 const char *who = NULL;
5220 if (prt_title) {
5221 prt_title = B_FALSE;
5222 (void) printf(title);
5223 }
5224
5225 switch (who_type) {
5226 case ZFS_DELEG_USER_SETS:
5227 case ZFS_DELEG_USER:
5228 who = gettext("user");
5229 if (nice_who_name)
5230 who_name = nice_who_name;
5231 break;
5232 case ZFS_DELEG_GROUP_SETS:
5233 case ZFS_DELEG_GROUP:
5234 who = gettext("group");
5235 if (nice_who_name)
5236 who_name = nice_who_name;
5237 break;
5238 case ZFS_DELEG_EVERYONE_SETS:
5239 case ZFS_DELEG_EVERYONE:
5240 who = gettext("everyone");
5241 who_name = NULL;
5242 break;
5243
5244 default:
5245 assert(who != NULL);
5246 }
5247
5248 prt_who = B_FALSE;
5249 if (who_name == NULL)
5250 (void) printf("\t%s", who);
5251 else
5252 (void) printf("\t%s %s", who, who_name);
5253 }
5254
5255 (void) printf("%c%s", delim,
5256 deleg_node->dpn_perm.dp_name);
5257 delim = ',';
5258 }
5259
5260 if (!prt_who)
5261 (void) printf("\n");
5262 }
5263
5264 uu_avl_walk_end(walk);
5265 }
5266
5267 static void
5268 print_fs_perms(fs_perm_set_t *fspset)
5269 {
5270 fs_perm_node_t *node = NULL;
5271 char buf[MAXNAMELEN + 32];
5272 const char *dsname = buf;
5273
5274 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5275 node = uu_list_next(fspset->fsps_list, node)) {
5276 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5277 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5278 int left = 0;
5279
5280 (void) snprintf(buf, sizeof (buf),
5281 gettext("---- Permissions on %s "),
5282 node->fspn_fsperm.fsp_name);
5283 (void) printf(dsname);
5284 left = 70 - strlen(buf);
5285 while (left-- > 0)
5286 (void) printf("-");
5287 (void) printf("\n");
5288
5289 print_set_creat_perms(sc_avl);
5290 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5291 gettext("Local permissions:\n"));
5292 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5293 gettext("Descendent permissions:\n"));
5294 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5295 gettext("Local+Descendent permissions:\n"));
5296 }
5297 }
5298
5299 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5300
5301 struct deleg_perms {
5302 boolean_t un;
5303 nvlist_t *nvl;
5304 };
5305
5306 static int
5307 set_deleg_perms(zfs_handle_t *zhp, void *data)
5308 {
5309 struct deleg_perms *perms = (struct deleg_perms *)data;
5310 zfs_type_t zfs_type = zfs_get_type(zhp);
5311
5312 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5313 return (0);
5314
5315 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5316 }
5317
5318 static int
5319 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5320 {
5321 zfs_handle_t *zhp;
5322 nvlist_t *perm_nvl = NULL;
5323 nvlist_t *update_perm_nvl = NULL;
5324 int error = 1;
5325 int c;
5326 struct allow_opts opts = { 0 };
5327
5328 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5329
5330 /* check opts */
5331 while ((c = getopt(argc, argv, optstr)) != -1) {
5332 switch (c) {
5333 case 'l':
5334 opts.local = B_TRUE;
5335 break;
5336 case 'd':
5337 opts.descend = B_TRUE;
5338 break;
5339 case 'u':
5340 opts.user = B_TRUE;
5341 break;
5342 case 'g':
5343 opts.group = B_TRUE;
5344 break;
5345 case 'e':
5346 opts.everyone = B_TRUE;
5347 break;
5348 case 's':
5349 opts.set = B_TRUE;
5350 break;
5351 case 'c':
5352 opts.create = B_TRUE;
5353 break;
5354 case 'r':
5355 opts.recursive = B_TRUE;
5356 break;
5357 case ':':
5358 (void) fprintf(stderr, gettext("missing argument for "
5359 "'%c' option\n"), optopt);
5360 usage(B_FALSE);
5361 break;
5362 case 'h':
5363 opts.prt_usage = B_TRUE;
5364 break;
5365 case '?':
5366 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5367 optopt);
5368 usage(B_FALSE);
5369 }
5370 }
5371
5372 argc -= optind;
5373 argv += optind;
5374
5375 /* check arguments */
5376 parse_allow_args(argc, argv, un, &opts);
5377
5378 /* try to open the dataset */
5379 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5380 ZFS_TYPE_VOLUME)) == NULL) {
5381 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5382 opts.dataset);
5383 return (-1);
5384 }
5385
5386 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5387 goto cleanup2;
5388
5389 fs_perm_set_init(&fs_perm_set);
5390 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5391 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5392 goto cleanup1;
5393 }
5394
5395 if (opts.prt_perms)
5396 print_fs_perms(&fs_perm_set);
5397 else {
5398 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5399 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5400 goto cleanup0;
5401
5402 if (un && opts.recursive) {
5403 struct deleg_perms data = { un, update_perm_nvl };
5404 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5405 &data) != 0)
5406 goto cleanup0;
5407 }
5408 }
5409
5410 error = 0;
5411
5412 cleanup0:
5413 nvlist_free(perm_nvl);
5414 nvlist_free(update_perm_nvl);
5415 cleanup1:
5416 fs_perm_set_fini(&fs_perm_set);
5417 cleanup2:
5418 zfs_close(zhp);
5419
5420 return (error);
5421 }
5422
5423 static int
5424 zfs_do_allow(int argc, char **argv)
5425 {
5426 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5427 }
5428
5429 static int
5430 zfs_do_unallow(int argc, char **argv)
5431 {
5432 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5433 }
5434
5435 static int
5436 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5437 {
5438 int errors = 0;
5439 int i;
5440 const char *tag;
5441 boolean_t recursive = B_FALSE;
5442 const char *opts = holding ? "rt" : "r";
5443 int c;
5444
5445 /* check options */
5446 while ((c = getopt(argc, argv, opts)) != -1) {
5447 switch (c) {
5448 case 'r':
5449 recursive = B_TRUE;
5450 break;
5451 case '?':
5452 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5453 optopt);
5454 usage(B_FALSE);
5455 }
5456 }
5457
5458 argc -= optind;
5459 argv += optind;
5460
5461 /* check number of arguments */
5462 if (argc < 2)
5463 usage(B_FALSE);
5464
5465 tag = argv[0];
5466 --argc;
5467 ++argv;
5468
5469 if (holding && tag[0] == '.') {
5470 /* tags starting with '.' are reserved for libzfs */
5471 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5472 usage(B_FALSE);
5473 }
5474
5475 for (i = 0; i < argc; ++i) {
5476 zfs_handle_t *zhp;
5477 char parent[ZFS_MAX_DATASET_NAME_LEN];
5478 const char *delim;
5479 char *path = argv[i];
5480
5481 delim = strchr(path, '@');
5482 if (delim == NULL) {
5483 (void) fprintf(stderr,
5484 gettext("'%s' is not a snapshot\n"), path);
5485 ++errors;
5486 continue;
5487 }
5488 (void) strncpy(parent, path, delim - path);
5489 parent[delim - path] = '\0';
5490
5491 zhp = zfs_open(g_zfs, parent,
5492 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5493 if (zhp == NULL) {
5494 ++errors;
5495 continue;
5496 }
5497 if (holding) {
5498 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5499 ++errors;
5500 } else {
5501 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5502 ++errors;
5503 }
5504 zfs_close(zhp);
5505 }
5506
5507 return (errors != 0);
5508 }
5509
5510 /*
5511 * zfs hold [-r] [-t] <tag> <snap> ...
5512 *
5513 * -r Recursively hold
5514 *
5515 * Apply a user-hold with the given tag to the list of snapshots.
5516 */
5517 static int
5518 zfs_do_hold(int argc, char **argv)
5519 {
5520 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5521 }
5522
5523 /*
5524 * zfs release [-r] <tag> <snap> ...
5525 *
5526 * -r Recursively release
5527 *
5528 * Release a user-hold with the given tag from the list of snapshots.
5529 */
5530 static int
5531 zfs_do_release(int argc, char **argv)
5532 {
5533 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5534 }
5535
5536 typedef struct holds_cbdata {
5537 boolean_t cb_recursive;
5538 const char *cb_snapname;
5539 nvlist_t **cb_nvlp;
5540 size_t cb_max_namelen;
5541 size_t cb_max_taglen;
5542 } holds_cbdata_t;
5543
5544 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5545 #define DATETIME_BUF_LEN (32)
5546 /*
5547 *
5548 */
5549 static void
5550 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl)
5551 {
5552 int i;
5553 nvpair_t *nvp = NULL;
5554 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5555 const char *col;
5556
5557 if (!scripted) {
5558 for (i = 0; i < 3; i++) {
5559 col = gettext(hdr_cols[i]);
5560 if (i < 2)
5561 (void) printf("%-*s ", i ? tagwidth : nwidth,
5562 col);
5563 else
5564 (void) printf("%s\n", col);
5565 }
5566 }
5567
5568 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5569 char *zname = nvpair_name(nvp);
5570 nvlist_t *nvl2;
5571 nvpair_t *nvp2 = NULL;
5572 (void) nvpair_value_nvlist(nvp, &nvl2);
5573 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5574 char tsbuf[DATETIME_BUF_LEN];
5575 char *tagname = nvpair_name(nvp2);
5576 uint64_t val = 0;
5577 time_t time;
5578 struct tm t;
5579 char sep = scripted ? '\t' : ' ';
5580 size_t sepnum = scripted ? 1 : 2;
5581
5582 (void) nvpair_value_uint64(nvp2, &val);
5583 time = (time_t)val;
5584 (void) localtime_r(&time, &t);
5585 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5586 gettext(STRFTIME_FMT_STR), &t);
5587
5588 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5589 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5590 }
5591 }
5592 }
5593
5594 /*
5595 * Generic callback function to list a dataset or snapshot.
5596 */
5597 static int
5598 holds_callback(zfs_handle_t *zhp, void *data)
5599 {
5600 holds_cbdata_t *cbp = data;
5601 nvlist_t *top_nvl = *cbp->cb_nvlp;
5602 nvlist_t *nvl = NULL;
5603 nvpair_t *nvp = NULL;
5604 const char *zname = zfs_get_name(zhp);
5605 size_t znamelen = strlen(zname);
5606
5607 if (cbp->cb_recursive) {
5608 const char *snapname;
5609 char *delim = strchr(zname, '@');
5610 if (delim == NULL)
5611 return (0);
5612
5613 snapname = delim + 1;
5614 if (strcmp(cbp->cb_snapname, snapname))
5615 return (0);
5616 }
5617
5618 if (zfs_get_holds(zhp, &nvl) != 0)
5619 return (-1);
5620
5621 if (znamelen > cbp->cb_max_namelen)
5622 cbp->cb_max_namelen = znamelen;
5623
5624 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5625 const char *tag = nvpair_name(nvp);
5626 size_t taglen = strlen(tag);
5627 if (taglen > cbp->cb_max_taglen)
5628 cbp->cb_max_taglen = taglen;
5629 }
5630
5631 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5632 }
5633
5634 /*
5635 * zfs holds [-r] <snap> ...
5636 *
5637 * -r Recursively hold
5638 */
5639 static int
5640 zfs_do_holds(int argc, char **argv)
5641 {
5642 int errors = 0;
5643 int c;
5644 int i;
5645 boolean_t scripted = B_FALSE;
5646 boolean_t recursive = B_FALSE;
5647 const char *opts = "rH";
5648 nvlist_t *nvl;
5649
5650 int types = ZFS_TYPE_SNAPSHOT;
5651 holds_cbdata_t cb = { 0 };
5652
5653 int limit = 0;
5654 int ret = 0;
5655 int flags = 0;
5656
5657 /* check options */
5658 while ((c = getopt(argc, argv, opts)) != -1) {
5659 switch (c) {
5660 case 'r':
5661 recursive = B_TRUE;
5662 break;
5663 case 'H':
5664 scripted = B_TRUE;
5665 break;
5666 case '?':
5667 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5668 optopt);
5669 usage(B_FALSE);
5670 }
5671 }
5672
5673 if (recursive) {
5674 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5675 flags |= ZFS_ITER_RECURSE;
5676 }
5677
5678 argc -= optind;
5679 argv += optind;
5680
5681 /* check number of arguments */
5682 if (argc < 1)
5683 usage(B_FALSE);
5684
5685 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5686 nomem();
5687
5688 for (i = 0; i < argc; ++i) {
5689 char *snapshot = argv[i];
5690 const char *delim;
5691 const char *snapname;
5692
5693 delim = strchr(snapshot, '@');
5694 if (delim == NULL) {
5695 (void) fprintf(stderr,
5696 gettext("'%s' is not a snapshot\n"), snapshot);
5697 ++errors;
5698 continue;
5699 }
5700 snapname = delim + 1;
5701 if (recursive)
5702 snapshot[delim - snapshot] = '\0';
5703
5704 cb.cb_recursive = recursive;
5705 cb.cb_snapname = snapname;
5706 cb.cb_nvlp = &nvl;
5707
5708 /*
5709 * 1. collect holds data, set format options
5710 */
5711 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5712 holds_callback, &cb);
5713 if (ret != 0)
5714 ++errors;
5715 }
5716
5717 /*
5718 * 2. print holds data
5719 */
5720 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5721
5722 if (nvlist_empty(nvl))
5723 (void) printf(gettext("no datasets available\n"));
5724
5725 nvlist_free(nvl);
5726
5727 return (0 != errors);
5728 }
5729
5730 #define CHECK_SPINNER 30
5731 #define SPINNER_TIME 3 /* seconds */
5732 #define MOUNT_TIME 5 /* seconds */
5733
5734 static int
5735 get_one_dataset(zfs_handle_t *zhp, void *data)
5736 {
5737 static char *spin[] = { "-", "\\", "|", "/" };
5738 static int spinval = 0;
5739 static int spincheck = 0;
5740 static time_t last_spin_time = (time_t)0;
5741 get_all_cb_t *cbp = data;
5742 zfs_type_t type = zfs_get_type(zhp);
5743
5744 if (cbp->cb_verbose) {
5745 if (--spincheck < 0) {
5746 time_t now = time(NULL);
5747 if (last_spin_time + SPINNER_TIME < now) {
5748 update_progress(spin[spinval++ % 4]);
5749 last_spin_time = now;
5750 }
5751 spincheck = CHECK_SPINNER;
5752 }
5753 }
5754
5755 /*
5756 * Interate over any nested datasets.
5757 */
5758 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5759 zfs_close(zhp);
5760 return (1);
5761 }
5762
5763 /*
5764 * Skip any datasets whose type does not match.
5765 */
5766 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5767 zfs_close(zhp);
5768 return (0);
5769 }
5770 libzfs_add_handle(cbp, zhp);
5771 assert(cbp->cb_used <= cbp->cb_alloc);
5772
5773 return (0);
5774 }
5775
5776 static void
5777 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5778 {
5779 get_all_cb_t cb = { 0 };
5780 cb.cb_verbose = verbose;
5781 cb.cb_getone = get_one_dataset;
5782
5783 if (verbose)
5784 set_progress_header(gettext("Reading ZFS config"));
5785 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5786
5787 *dslist = cb.cb_handles;
5788 *count = cb.cb_used;
5789
5790 if (verbose)
5791 finish_progress(gettext("done."));
5792 }
5793
5794 /*
5795 * Generic callback for sharing or mounting filesystems. Because the code is so
5796 * similar, we have a common function with an extra parameter to determine which
5797 * mode we are using.
5798 */
5799 #define OP_SHARE 0x1
5800 #define OP_MOUNT 0x2
5801
5802 /*
5803 * Share or mount a dataset.
5804 */
5805 static int
5806 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5807 boolean_t explicit, const char *options)
5808 {
5809 char mountpoint[ZFS_MAXPROPLEN];
5810 char shareopts[ZFS_MAXPROPLEN];
5811 char smbshareopts[ZFS_MAXPROPLEN];
5812 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5813 struct mnttab mnt;
5814 uint64_t zoned, canmount;
5815 boolean_t shared_nfs, shared_smb;
5816
5817 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
5818
5819 /*
5820 * Check to make sure we can mount/share this dataset. If we
5821 * are in the global zone and the filesystem is exported to a
5822 * local zone, or if we are in a local zone and the
5823 * filesystem is not exported, then it is an error.
5824 */
5825 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
5826
5827 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5828 if (!explicit)
5829 return (0);
5830
5831 (void) fprintf(stderr, gettext("cannot %s '%s': "
5832 "dataset is exported to a local zone\n"), cmdname,
5833 zfs_get_name(zhp));
5834 return (1);
5835
5836 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5837 if (!explicit)
5838 return (0);
5839
5840 (void) fprintf(stderr, gettext("cannot %s '%s': "
5841 "permission denied\n"), cmdname,
5842 zfs_get_name(zhp));
5843 return (1);
5844 }
5845
5846 /*
5847 * Ignore any filesystems which don't apply to us. This
5848 * includes those with a legacy mountpoint, or those with
5849 * legacy share options.
5850 */
5851 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5852 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5853 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5854 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5855 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5856 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5857
5858 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5859 strcmp(smbshareopts, "off") == 0) {
5860 if (!explicit)
5861 return (0);
5862
5863 (void) fprintf(stderr, gettext("cannot share '%s': "
5864 "legacy share\n"), zfs_get_name(zhp));
5865 (void) fprintf(stderr, gettext("use share(1M) to "
5866 "share this filesystem, or set "
5867 "sharenfs property on\n"));
5868 return (1);
5869 }
5870
5871 /*
5872 * We cannot share or mount legacy filesystems. If the
5873 * shareopts is non-legacy but the mountpoint is legacy, we
5874 * treat it as a legacy share.
5875 */
5876 if (strcmp(mountpoint, "legacy") == 0) {
5877 if (!explicit)
5878 return (0);
5879
5880 (void) fprintf(stderr, gettext("cannot %s '%s': "
5881 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5882 (void) fprintf(stderr, gettext("use %s(1M) to "
5883 "%s this filesystem\n"), cmdname, cmdname);
5884 return (1);
5885 }
5886
5887 if (strcmp(mountpoint, "none") == 0) {
5888 if (!explicit)
5889 return (0);
5890
5891 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5892 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5893 return (1);
5894 }
5895
5896 /*
5897 * canmount explicit outcome
5898 * on no pass through
5899 * on yes pass through
5900 * off no return 0
5901 * off yes display error, return 1
5902 * noauto no return 0
5903 * noauto yes pass through
5904 */
5905 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5906 if (canmount == ZFS_CANMOUNT_OFF) {
5907 if (!explicit)
5908 return (0);
5909
5910 (void) fprintf(stderr, gettext("cannot %s '%s': "
5911 "'canmount' property is set to 'off'\n"), cmdname,
5912 zfs_get_name(zhp));
5913 return (1);
5914 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5915 return (0);
5916 }
5917
5918 /*
5919 * If this filesystem is inconsistent and has a receive resume
5920 * token, we can not mount it.
5921 */
5922 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
5923 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
5924 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
5925 if (!explicit)
5926 return (0);
5927
5928 (void) fprintf(stderr, gettext("cannot %s '%s': "
5929 "Contains partially-completed state from "
5930 "\"zfs receive -r\", which can be resumed with "
5931 "\"zfs send -t\"\n"),
5932 cmdname, zfs_get_name(zhp));
5933 return (1);
5934 }
5935
5936 /*
5937 * At this point, we have verified that the mountpoint and/or
5938 * shareopts are appropriate for auto management. If the
5939 * filesystem is already mounted or shared, return (failing
5940 * for explicit requests); otherwise mount or share the
5941 * filesystem.
5942 */
5943 switch (op) {
5944 case OP_SHARE:
5945
5946 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5947 shared_smb = zfs_is_shared_smb(zhp, NULL);
5948
5949 if ((shared_nfs && shared_smb) ||
5950 (shared_nfs && strcmp(shareopts, "on") == 0 &&
5951 strcmp(smbshareopts, "off") == 0) ||
5952 (shared_smb && strcmp(smbshareopts, "on") == 0 &&
5953 strcmp(shareopts, "off") == 0)) {
5954 if (!explicit)
5955 return (0);
5956
5957 (void) fprintf(stderr, gettext("cannot share "
5958 "'%s': filesystem already shared\n"),
5959 zfs_get_name(zhp));
5960 return (1);
5961 }
5962
5963 if (!zfs_is_mounted(zhp, NULL) &&
5964 zfs_mount(zhp, NULL, 0) != 0)
5965 return (1);
5966
5967 if (protocol == NULL) {
5968 if (zfs_shareall(zhp) != 0)
5969 return (1);
5970 } else if (strcmp(protocol, "nfs") == 0) {
5971 if (zfs_share_nfs(zhp))
5972 return (1);
5973 } else if (strcmp(protocol, "smb") == 0) {
5974 if (zfs_share_smb(zhp))
5975 return (1);
5976 } else {
5977 (void) fprintf(stderr, gettext("cannot share "
5978 "'%s': invalid share type '%s' "
5979 "specified\n"),
5980 zfs_get_name(zhp), protocol);
5981 return (1);
5982 }
5983
5984 break;
5985
5986 case OP_MOUNT:
5987 if (options == NULL)
5988 mnt.mnt_mntopts = "";
5989 else
5990 mnt.mnt_mntopts = (char *)options;
5991
5992 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5993 zfs_is_mounted(zhp, NULL)) {
5994 if (!explicit)
5995 return (0);
5996
5997 (void) fprintf(stderr, gettext("cannot mount "
5998 "'%s': filesystem already mounted\n"),
5999 zfs_get_name(zhp));
6000 return (1);
6001 }
6002
6003 if (zfs_mount(zhp, options, flags) != 0)
6004 return (1);
6005 break;
6006 }
6007
6008 return (0);
6009 }
6010
6011 /*
6012 * Reports progress in the form "(current/total)". Not thread-safe.
6013 */
6014 static void
6015 report_mount_progress(int current, int total)
6016 {
6017 static time_t last_progress_time = 0;
6018 time_t now = time(NULL);
6019 char info[32];
6020
6021 /* report 1..n instead of 0..n-1 */
6022 ++current;
6023
6024 /* display header if we're here for the first time */
6025 if (current == 1) {
6026 set_progress_header(gettext("Mounting ZFS filesystems"));
6027 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6028 /* too soon to report again */
6029 return;
6030 }
6031
6032 last_progress_time = now;
6033
6034 (void) sprintf(info, "(%d/%d)", current, total);
6035
6036 if (current == total)
6037 finish_progress(info);
6038 else
6039 update_progress(info);
6040 }
6041
6042 static void
6043 append_options(char *mntopts, char *newopts)
6044 {
6045 int len = strlen(mntopts);
6046
6047 /* original length plus new string to append plus 1 for the comma */
6048 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6049 (void) fprintf(stderr, gettext("the opts argument for "
6050 "'%c' option is too long (more than %d chars)\n"),
6051 "-o", MNT_LINE_MAX);
6052 usage(B_FALSE);
6053 }
6054
6055 if (*mntopts)
6056 mntopts[len++] = ',';
6057
6058 (void) strcpy(&mntopts[len], newopts);
6059 }
6060
6061 static int
6062 share_mount(int op, int argc, char **argv)
6063 {
6064 int do_all = 0;
6065 boolean_t verbose = B_FALSE;
6066 int c, ret = 0;
6067 char *options = NULL;
6068 int flags = 0;
6069
6070 /* check options */
6071 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
6072 != -1) {
6073 switch (c) {
6074 case 'a':
6075 do_all = 1;
6076 break;
6077 case 'v':
6078 verbose = B_TRUE;
6079 break;
6080 case 'o':
6081 if (*optarg == '\0') {
6082 (void) fprintf(stderr, gettext("empty mount "
6083 "options (-o) specified\n"));
6084 usage(B_FALSE);
6085 }
6086
6087 if (options == NULL)
6088 options = safe_malloc(MNT_LINE_MAX + 1);
6089
6090 /* option validation is done later */
6091 append_options(options, optarg);
6092 break;
6093
6094 case 'O':
6095 flags |= MS_OVERLAY;
6096 break;
6097 case ':':
6098 (void) fprintf(stderr, gettext("missing argument for "
6099 "'%c' option\n"), optopt);
6100 usage(B_FALSE);
6101 break;
6102 case '?':
6103 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6104 optopt);
6105 usage(B_FALSE);
6106 }
6107 }
6108
6109 argc -= optind;
6110 argv += optind;
6111
6112 /* check number of arguments */
6113 if (do_all) {
6114 zfs_handle_t **dslist = NULL;
6115 size_t i, count = 0;
6116 char *protocol = NULL;
6117
6118 if (op == OP_SHARE && argc > 0) {
6119 if (strcmp(argv[0], "nfs") != 0 &&
6120 strcmp(argv[0], "smb") != 0) {
6121 (void) fprintf(stderr, gettext("share type "
6122 "must be 'nfs' or 'smb'\n"));
6123 usage(B_FALSE);
6124 }
6125 protocol = argv[0];
6126 argc--;
6127 argv++;
6128 }
6129
6130 if (argc != 0) {
6131 (void) fprintf(stderr, gettext("too many arguments\n"));
6132 usage(B_FALSE);
6133 }
6134
6135 start_progress_timer();
6136 get_all_datasets(&dslist, &count, verbose);
6137
6138 if (count == 0)
6139 return (0);
6140
6141 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
6142 sa_init_selective_arg_t sharearg;
6143 sharearg.zhandle_arr = dslist;
6144 sharearg.zhandle_len = count;
6145 if ((ret = zfs_init_libshare_arg(zfs_get_handle(dslist[0]),
6146 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) {
6147 (void) fprintf(stderr,
6148 gettext("Could not initialize libshare, %d"), ret);
6149 return (ret);
6150 }
6151
6152 for (i = 0; i < count; i++) {
6153 if (verbose)
6154 report_mount_progress(i, count);
6155
6156 if (share_mount_one(dslist[i], op, flags, protocol,
6157 B_FALSE, options) != 0)
6158 ret = 1;
6159 zfs_close(dslist[i]);
6160 }
6161
6162 free(dslist);
6163 } else if (argc == 0) {
6164 struct mnttab entry;
6165
6166 if ((op == OP_SHARE) || (options != NULL)) {
6167 (void) fprintf(stderr, gettext("missing filesystem "
6168 "argument (specify -a for all)\n"));
6169 usage(B_FALSE);
6170 }
6171
6172 /*
6173 * When mount is given no arguments, go through /etc/mnttab and
6174 * display any active ZFS mounts. We hide any snapshots, since
6175 * they are controlled automatically.
6176 */
6177 rewind(mnttab_file);
6178 while (getmntent(mnttab_file, &entry) == 0) {
6179 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6180 strchr(entry.mnt_special, '@') != NULL)
6181 continue;
6182
6183 (void) printf("%-30s %s\n", entry.mnt_special,
6184 entry.mnt_mountp);
6185 }
6186
6187 } else {
6188 zfs_handle_t *zhp;
6189
6190 if (argc > 1) {
6191 (void) fprintf(stderr,
6192 gettext("too many arguments\n"));
6193 usage(B_FALSE);
6194 }
6195
6196 if ((zhp = zfs_open(g_zfs, argv[0],
6197 ZFS_TYPE_FILESYSTEM)) == NULL) {
6198 ret = 1;
6199 } else {
6200 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6201 options);
6202 zfs_close(zhp);
6203 }
6204 }
6205
6206 return (ret);
6207 }
6208
6209 /*
6210 * zfs mount -a [nfs]
6211 * zfs mount filesystem
6212 *
6213 * Mount all filesystems, or mount the given filesystem.
6214 */
6215 static int
6216 zfs_do_mount(int argc, char **argv)
6217 {
6218 return (share_mount(OP_MOUNT, argc, argv));
6219 }
6220
6221 /*
6222 * zfs share -a [nfs | smb]
6223 * zfs share filesystem
6224 *
6225 * Share all filesystems, or share the given filesystem.
6226 */
6227 static int
6228 zfs_do_share(int argc, char **argv)
6229 {
6230 return (share_mount(OP_SHARE, argc, argv));
6231 }
6232
6233 typedef struct unshare_unmount_node {
6234 zfs_handle_t *un_zhp;
6235 char *un_mountp;
6236 uu_avl_node_t un_avlnode;
6237 } unshare_unmount_node_t;
6238
6239 /* ARGSUSED */
6240 static int
6241 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6242 {
6243 const unshare_unmount_node_t *l = larg;
6244 const unshare_unmount_node_t *r = rarg;
6245
6246 return (strcmp(l->un_mountp, r->un_mountp));
6247 }
6248
6249 /*
6250 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6251 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem,
6252 * and unmount it appropriately.
6253 */
6254 static int
6255 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6256 {
6257 zfs_handle_t *zhp;
6258 int ret = 0;
6259 struct stat64 statbuf;
6260 struct extmnttab entry;
6261 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6262 ino_t path_inode;
6263
6264 /*
6265 * Search for the path in /etc/mnttab. Rather than looking for the
6266 * specific path, which can be fooled by non-standard paths (i.e. ".."
6267 * or "//"), we stat() the path and search for the corresponding
6268 * (major,minor) device pair.
6269 */
6270 if (stat64(path, &statbuf) != 0) {
6271 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6272 cmdname, path, strerror(errno));
6273 return (1);
6274 }
6275 path_inode = statbuf.st_ino;
6276
6277 /*
6278 * Search for the given (major,minor) pair in the mount table.
6279 */
6280 rewind(mnttab_file);
6281 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6282 if (entry.mnt_major == major(statbuf.st_dev) &&
6283 entry.mnt_minor == minor(statbuf.st_dev))
6284 break;
6285 }
6286 if (ret != 0) {
6287 if (op == OP_SHARE) {
6288 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6289 "currently mounted\n"), cmdname, path);
6290 return (1);
6291 }
6292 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"),
6293 path);
6294 if ((ret = umount2(path, flags)) != 0)
6295 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6296 strerror(errno));
6297 return (ret != 0);
6298 }
6299
6300 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6301 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6302 "filesystem\n"), cmdname, path);
6303 return (1);
6304 }
6305
6306 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6307 ZFS_TYPE_FILESYSTEM)) == NULL)
6308 return (1);
6309
6310 ret = 1;
6311 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6312 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6313 cmdname, path, strerror(errno));
6314 goto out;
6315 } else if (statbuf.st_ino != path_inode) {
6316 (void) fprintf(stderr, gettext("cannot "
6317 "%s '%s': not a mountpoint\n"), cmdname, path);
6318 goto out;
6319 }
6320
6321 if (op == OP_SHARE) {
6322 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6323 char smbshare_prop[ZFS_MAXPROPLEN];
6324
6325 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6326 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6327 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6328 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6329
6330 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6331 strcmp(smbshare_prop, "off") == 0) {
6332 (void) fprintf(stderr, gettext("cannot unshare "
6333 "'%s': legacy share\n"), path);
6334 (void) fprintf(stderr, gettext("use "
6335 "unshare(1M) to unshare this filesystem\n"));
6336 } else if (!zfs_is_shared(zhp)) {
6337 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6338 "not currently shared\n"), path);
6339 } else {
6340 ret = zfs_unshareall_bypath(zhp, path);
6341 }
6342 } else {
6343 char mtpt_prop[ZFS_MAXPROPLEN];
6344
6345 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6346 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6347
6348 if (is_manual) {
6349 ret = zfs_unmount(zhp, NULL, flags);
6350 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6351 (void) fprintf(stderr, gettext("cannot unmount "
6352 "'%s': legacy mountpoint\n"),
6353 zfs_get_name(zhp));
6354 (void) fprintf(stderr, gettext("use umount(1M) "
6355 "to unmount this filesystem\n"));
6356 } else {
6357 ret = zfs_unmountall(zhp, flags);
6358 }
6359 }
6360
6361 out:
6362 zfs_close(zhp);
6363
6364 return (ret != 0);
6365 }
6366
6367 /*
6368 * Generic callback for unsharing or unmounting a filesystem.
6369 */
6370 static int
6371 unshare_unmount(int op, int argc, char **argv)
6372 {
6373 int do_all = 0;
6374 int flags = 0;
6375 int ret = 0;
6376 int c;
6377 zfs_handle_t *zhp;
6378 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6379 char sharesmb[ZFS_MAXPROPLEN];
6380
6381 /* check options */
6382 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
6383 switch (c) {
6384 case 'a':
6385 do_all = 1;
6386 break;
6387 case 'f':
6388 flags = MS_FORCE;
6389 break;
6390 case '?':
6391 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6392 optopt);
6393 usage(B_FALSE);
6394 }
6395 }
6396
6397 argc -= optind;
6398 argv += optind;
6399
6400 if (do_all) {
6401 /*
6402 * We could make use of zfs_for_each() to walk all datasets in
6403 * the system, but this would be very inefficient, especially
6404 * since we would have to linearly search /etc/mnttab for each
6405 * one. Instead, do one pass through /etc/mnttab looking for
6406 * zfs entries and call zfs_unmount() for each one.
6407 *
6408 * Things get a little tricky if the administrator has created
6409 * mountpoints beneath other ZFS filesystems. In this case, we
6410 * have to unmount the deepest filesystems first. To accomplish
6411 * this, we place all the mountpoints in an AVL tree sorted by
6412 * the special type (dataset name), and walk the result in
6413 * reverse to make sure to get any snapshots first.
6414 */
6415 struct mnttab entry;
6416 uu_avl_pool_t *pool;
6417 uu_avl_t *tree = NULL;
6418 unshare_unmount_node_t *node;
6419 uu_avl_index_t idx;
6420 uu_avl_walk_t *walk;
6421
6422 if (argc != 0) {
6423 (void) fprintf(stderr, gettext("too many arguments\n"));
6424 usage(B_FALSE);
6425 }
6426
6427 if (((pool = uu_avl_pool_create("unmount_pool",
6428 sizeof (unshare_unmount_node_t),
6429 offsetof(unshare_unmount_node_t, un_avlnode),
6430 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6431 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6432 nomem();
6433
6434 rewind(mnttab_file);
6435 while (getmntent(mnttab_file, &entry) == 0) {
6436
6437 /* ignore non-ZFS entries */
6438 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6439 continue;
6440
6441 /* ignore snapshots */
6442 if (strchr(entry.mnt_special, '@') != NULL)
6443 continue;
6444
6445 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6446 ZFS_TYPE_FILESYSTEM)) == NULL) {
6447 ret = 1;
6448 continue;
6449 }
6450
6451 /*
6452 * Ignore datasets that are excluded/restricted by
6453 * parent pool name.
6454 */
6455 if (zpool_skip_pool(zfs_get_pool_name(zhp))) {
6456 zfs_close(zhp);
6457 continue;
6458 }
6459
6460 switch (op) {
6461 case OP_SHARE:
6462 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6463 nfs_mnt_prop,
6464 sizeof (nfs_mnt_prop),
6465 NULL, NULL, 0, B_FALSE) == 0);
6466 if (strcmp(nfs_mnt_prop, "off") != 0)
6467 break;
6468 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6469 nfs_mnt_prop,
6470 sizeof (nfs_mnt_prop),
6471 NULL, NULL, 0, B_FALSE) == 0);
6472 if (strcmp(nfs_mnt_prop, "off") == 0)
6473 continue;
6474 break;
6475 case OP_MOUNT:
6476 /* Ignore legacy mounts */
6477 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6478 nfs_mnt_prop,
6479 sizeof (nfs_mnt_prop),
6480 NULL, NULL, 0, B_FALSE) == 0);
6481 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6482 continue;
6483 /* Ignore canmount=noauto mounts */
6484 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6485 ZFS_CANMOUNT_NOAUTO)
6486 continue;
6487 default:
6488 break;
6489 }
6490
6491 node = safe_malloc(sizeof (unshare_unmount_node_t));
6492 node->un_zhp = zhp;
6493 node->un_mountp = safe_strdup(entry.mnt_mountp);
6494
6495 uu_avl_node_init(node, &node->un_avlnode, pool);
6496
6497 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6498 uu_avl_insert(tree, node, idx);
6499 } else {
6500 zfs_close(node->un_zhp);
6501 free(node->un_mountp);
6502 free(node);
6503 }
6504 }
6505
6506 /*
6507 * Walk the AVL tree in reverse, unmounting each filesystem and
6508 * removing it from the AVL tree in the process.
6509 */
6510 if ((walk = uu_avl_walk_start(tree,
6511 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6512 nomem();
6513
6514 while ((node = uu_avl_walk_next(walk)) != NULL) {
6515 uu_avl_remove(tree, node);
6516
6517 switch (op) {
6518 case OP_SHARE:
6519 if (zfs_unshareall_bypath(node->un_zhp,
6520 node->un_mountp) != 0)
6521 ret = 1;
6522 break;
6523
6524 case OP_MOUNT:
6525 if (zfs_unmount(node->un_zhp,
6526 node->un_mountp, flags) != 0)
6527 ret = 1;
6528 break;
6529 }
6530
6531 zfs_close(node->un_zhp);
6532 free(node->un_mountp);
6533 free(node);
6534 }
6535
6536 uu_avl_walk_end(walk);
6537 uu_avl_destroy(tree);
6538 uu_avl_pool_destroy(pool);
6539
6540 } else {
6541 if (argc != 1) {
6542 if (argc == 0)
6543 (void) fprintf(stderr,
6544 gettext("missing filesystem argument\n"));
6545 else
6546 (void) fprintf(stderr,
6547 gettext("too many arguments\n"));
6548 usage(B_FALSE);
6549 }
6550
6551 /*
6552 * We have an argument, but it may be a full path or a ZFS
6553 * filesystem. Pass full paths off to unmount_path() (shared by
6554 * manual_unmount), otherwise open the filesystem and pass to
6555 * zfs_unmount().
6556 */
6557 if (argv[0][0] == '/')
6558 return (unshare_unmount_path(op, argv[0],
6559 flags, B_FALSE));
6560
6561 if ((zhp = zfs_open(g_zfs, argv[0],
6562 ZFS_TYPE_FILESYSTEM)) == NULL)
6563 return (1);
6564
6565 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6566 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6567 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6568 NULL, 0, B_FALSE) == 0);
6569
6570 switch (op) {
6571 case OP_SHARE:
6572 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6573 nfs_mnt_prop,
6574 sizeof (nfs_mnt_prop),
6575 NULL, NULL, 0, B_FALSE) == 0);
6576 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6577 sharesmb, sizeof (sharesmb), NULL, NULL,
6578 0, B_FALSE) == 0);
6579
6580 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6581 strcmp(sharesmb, "off") == 0) {
6582 (void) fprintf(stderr, gettext("cannot "
6583 "unshare '%s': legacy share\n"),
6584 zfs_get_name(zhp));
6585 (void) fprintf(stderr, gettext("use "
6586 "unshare(1M) to unshare this "
6587 "filesystem\n"));
6588 ret = 1;
6589 } else if (!zfs_is_shared(zhp)) {
6590 (void) fprintf(stderr, gettext("cannot "
6591 "unshare '%s': not currently "
6592 "shared\n"), zfs_get_name(zhp));
6593 ret = 1;
6594 } else if (zfs_unshareall(zhp) != 0) {
6595 ret = 1;
6596 }
6597 break;
6598
6599 case OP_MOUNT:
6600 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6601 (void) fprintf(stderr, gettext("cannot "
6602 "unmount '%s': legacy "
6603 "mountpoint\n"), zfs_get_name(zhp));
6604 (void) fprintf(stderr, gettext("use "
6605 "umount(1M) to unmount this "
6606 "filesystem\n"));
6607 ret = 1;
6608 } else if (!zfs_is_mounted(zhp, NULL)) {
6609 (void) fprintf(stderr, gettext("cannot "
6610 "unmount '%s': not currently "
6611 "mounted\n"),
6612 zfs_get_name(zhp));
6613 ret = 1;
6614 } else if (zfs_unmountall(zhp, flags) != 0) {
6615 ret = 1;
6616 }
6617 break;
6618 }
6619
6620 zfs_close(zhp);
6621 }
6622
6623 return (ret);
6624 }
6625
6626 /*
6627 * zfs unmount -a
6628 * zfs unmount filesystem
6629 *
6630 * Unmount all filesystems, or a specific ZFS filesystem.
6631 */
6632 static int
6633 zfs_do_unmount(int argc, char **argv)
6634 {
6635 return (unshare_unmount(OP_MOUNT, argc, argv));
6636 }
6637
6638 /*
6639 * zfs unshare -a
6640 * zfs unshare filesystem
6641 *
6642 * Unshare all filesystems, or a specific ZFS filesystem.
6643 */
6644 static int
6645 zfs_do_unshare(int argc, char **argv)
6646 {
6647 return (unshare_unmount(OP_SHARE, argc, argv));
6648 }
6649
6650 /*
6651 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is
6652 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'.
6653 */
6654 static int
6655 manual_mount(int argc, char **argv)
6656 {
6657 zfs_handle_t *zhp;
6658 char mountpoint[ZFS_MAXPROPLEN];
6659 char mntopts[MNT_LINE_MAX] = { '\0' };
6660 int ret = 0;
6661 int c;
6662 int flags = 0;
6663 char *dataset, *path;
6664
6665 /* check options */
6666 while ((c = getopt(argc, argv, ":mo:O")) != -1) {
6667 switch (c) {
6668 case 'o':
6669 (void) strlcpy(mntopts, optarg, sizeof (mntopts));
6670 break;
6671 case 'O':
6672 flags |= MS_OVERLAY;
6673 break;
6674 case 'm':
6675 flags |= MS_NOMNTTAB;
6676 break;
6677 case ':':
6678 (void) fprintf(stderr, gettext("missing argument for "
6679 "'%c' option\n"), optopt);
6680 usage(B_FALSE);
6681 break;
6682 case '?':
6683 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6684 optopt);
6685 (void) fprintf(stderr, gettext("usage: mount [-o opts] "
6686 "<path>\n"));
6687 return (2);
6688 }
6689 }
6690
6691 argc -= optind;
6692 argv += optind;
6693
6694 /* check that we only have two arguments */
6695 if (argc != 2) {
6696 if (argc == 0)
6697 (void) fprintf(stderr, gettext("missing dataset "
6698 "argument\n"));
6699 else if (argc == 1)
6700 (void) fprintf(stderr,
6701 gettext("missing mountpoint argument\n"));
6702 else
6703 (void) fprintf(stderr, gettext("too many arguments\n"));
6704 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n");
6705 return (2);
6706 }
6707
6708 dataset = argv[0];
6709 path = argv[1];
6710
6711 /* try to open the dataset */
6712 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL)
6713 return (1);
6714
6715 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
6716 sizeof (mountpoint), NULL, NULL, 0, B_FALSE);
6717
6718 /* check for legacy mountpoint and complain appropriately */
6719 ret = 0;
6720 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) {
6721 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS,
6722 NULL, 0, mntopts, sizeof (mntopts)) != 0) {
6723 (void) fprintf(stderr, gettext("mount failed: %s\n"),
6724 strerror(errno));
6725 ret = 1;
6726 }
6727 } else {
6728 (void) fprintf(stderr, gettext("filesystem '%s' cannot be "
6729 "mounted using 'mount -F zfs'\n"), dataset);
6730 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' "
6731 "instead.\n"), path);
6732 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' "
6733 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n"));
6734 (void) fprintf(stderr, gettext("See zfs(1M) for more "
6735 "information.\n"));
6736 ret = 1;
6737 }
6738
6739 return (ret);
6740 }
6741
6742 /*
6743 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow
6744 * unmounts of non-legacy filesystems, as this is the dominant administrative
6745 * interface.
6746 */
6747 static int
6748 manual_unmount(int argc, char **argv)
6749 {
6750 int flags = 0;
6751 int c;
6752
6753 /* check options */
6754 while ((c = getopt(argc, argv, "f")) != -1) {
6755 switch (c) {
6756 case 'f':
6757 flags = MS_FORCE;
6758 break;
6759 case '?':
6760 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6761 optopt);
6762 (void) fprintf(stderr, gettext("usage: unmount [-f] "
6763 "<path>\n"));
6764 return (2);
6765 }
6766 }
6767
6768 argc -= optind;
6769 argv += optind;
6770
6771 /* check arguments */
6772 if (argc != 1) {
6773 if (argc == 0)
6774 (void) fprintf(stderr, gettext("missing path "
6775 "argument\n"));
6776 else
6777 (void) fprintf(stderr, gettext("too many arguments\n"));
6778 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n"));
6779 return (2);
6780 }
6781
6782 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE));
6783 }
6784
6785 static int
6786 find_command_idx(char *command, int *idx)
6787 {
6788 int i;
6789
6790 for (i = 0; i < NCOMMAND; i++) {
6791 if (command_table[i].name == NULL)
6792 continue;
6793
6794 if (strcmp(command, command_table[i].name) == 0) {
6795 *idx = i;
6796 return (0);
6797 }
6798 }
6799 return (1);
6800 }
6801
6802 static int
6803 zfs_do_diff(int argc, char **argv)
6804 {
6805 zfs_handle_t *zhp;
6806 int flags = 0;
6807 char *tosnap = NULL;
6808 char *fromsnap = NULL;
6809 char *atp, *copy;
6810 int err = 0;
6811 int c;
6812
6813 while ((c = getopt(argc, argv, "FHt")) != -1) {
6814 switch (c) {
6815 case 'F':
6816 flags |= ZFS_DIFF_CLASSIFY;
6817 break;
6818 case 'H':
6819 flags |= ZFS_DIFF_PARSEABLE;
6820 break;
6821 case 't':
6822 flags |= ZFS_DIFF_TIMESTAMP;
6823 break;
6824 default:
6825 (void) fprintf(stderr,
6826 gettext("invalid option '%c'\n"), optopt);
6827 usage(B_FALSE);
6828 }
6829 }
6830
6831 argc -= optind;
6832 argv += optind;
6833
6834 if (argc < 1) {
6835 (void) fprintf(stderr,
6836 gettext("must provide at least one snapshot name\n"));
6837 usage(B_FALSE);
6838 }
6839
6840 if (argc > 2) {
6841 (void) fprintf(stderr, gettext("too many arguments\n"));
6842 usage(B_FALSE);
6843 }
6844
6845 fromsnap = argv[0];
6846 tosnap = (argc == 2) ? argv[1] : NULL;
6847
6848 copy = NULL;
6849 if (*fromsnap != '@')
6850 copy = strdup(fromsnap);
6851 else if (tosnap)
6852 copy = strdup(tosnap);
6853 if (copy == NULL)
6854 usage(B_FALSE);
6855
6856 if ((atp = strchr(copy, '@')) != NULL)
6857 *atp = '\0';
6858
6859 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6860 return (1);
6861
6862 free(copy);
6863
6864 /*
6865 * Ignore SIGPIPE so that the library can give us
6866 * information on any failure
6867 */
6868 (void) sigignore(SIGPIPE);
6869
6870 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6871
6872 zfs_close(zhp);
6873
6874 return (err != 0);
6875 }
6876
6877 /*
6878 * zfs bookmark <fs@snap> <fs#bmark>
6879 *
6880 * Creates a bookmark with the given name from the given snapshot.
6881 */
6882 static int
6883 zfs_do_bookmark(int argc, char **argv)
6884 {
6885 char snapname[ZFS_MAX_DATASET_NAME_LEN];
6886 zfs_handle_t *zhp;
6887 nvlist_t *nvl;
6888 int ret = 0;
6889 int c;
6890
6891 /* check options */
6892 while ((c = getopt(argc, argv, "")) != -1) {
6893 switch (c) {
6894 case '?':
6895 (void) fprintf(stderr,
6896 gettext("invalid option '%c'\n"), optopt);
6897 goto usage;
6898 }
6899 }
6900
6901 argc -= optind;
6902 argv += optind;
6903
6904 /* check number of arguments */
6905 if (argc < 1) {
6906 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
6907 goto usage;
6908 }
6909 if (argc < 2) {
6910 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
6911 goto usage;
6912 }
6913
6914 if (strchr(argv[1], '#') == NULL) {
6915 (void) fprintf(stderr,
6916 gettext("invalid bookmark name '%s' -- "
6917 "must contain a '#'\n"), argv[1]);
6918 goto usage;
6919 }
6920
6921 if (argv[0][0] == '@') {
6922 /*
6923 * Snapshot name begins with @.
6924 * Default to same fs as bookmark.
6925 */
6926 (void) strncpy(snapname, argv[1], sizeof (snapname));
6927 *strchr(snapname, '#') = '\0';
6928 (void) strlcat(snapname, argv[0], sizeof (snapname));
6929 } else {
6930 (void) strncpy(snapname, argv[0], sizeof (snapname));
6931 }
6932 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
6933 if (zhp == NULL)
6934 goto usage;
6935 zfs_close(zhp);
6936
6937
6938 nvl = fnvlist_alloc();
6939 fnvlist_add_string(nvl, argv[1], snapname);
6940 ret = lzc_bookmark(nvl, NULL);
6941 fnvlist_free(nvl);
6942
6943 if (ret != 0) {
6944 const char *err_msg;
6945 char errbuf[1024];
6946
6947 (void) snprintf(errbuf, sizeof (errbuf),
6948 dgettext(TEXT_DOMAIN,
6949 "cannot create bookmark '%s'"), argv[1]);
6950
6951 switch (ret) {
6952 case EXDEV:
6953 err_msg = "bookmark is in a different pool";
6954 break;
6955 case EEXIST:
6956 err_msg = "bookmark exists";
6957 break;
6958 case EINVAL:
6959 err_msg = "invalid argument";
6960 break;
6961 case ENOTSUP:
6962 err_msg = "bookmark feature not enabled";
6963 break;
6964 case ENOSPC:
6965 err_msg = "out of space";
6966 break;
6967 default:
6968 err_msg = "unknown error";
6969 break;
6970 }
6971 (void) fprintf(stderr, "%s: %s\n", errbuf,
6972 dgettext(TEXT_DOMAIN, err_msg));
6973 }
6974
6975 return (ret != 0);
6976
6977 usage:
6978 usage(B_FALSE);
6979 return (-1);
6980 }
6981
6982 int
6983 main(int argc, char **argv)
6984 {
6985 int ret = 0;
6986 int i;
6987 char *progname;
6988 char *cmdname;
6989
6990 (void) setlocale(LC_ALL, "");
6991 (void) textdomain(TEXT_DOMAIN);
6992
6993 opterr = 0;
6994
6995 if ((g_zfs = libzfs_init()) == NULL) {
6996 (void) fprintf(stderr, gettext("internal error: failed to "
6997 "initialize ZFS library\n"));
6998 return (1);
6999 }
7000
7001 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
7002
7003 libzfs_print_on_error(g_zfs, B_TRUE);
7004
7005 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) {
7006 (void) fprintf(stderr, gettext("internal error: unable to "
7007 "open %s\n"), MNTTAB);
7008 return (1);
7009 }
7010
7011 /*
7012 * This command also doubles as the /etc/fs mount and unmount program.
7013 * Determine if we should take this behavior based on argv[0].
7014 */
7015 progname = basename(argv[0]);
7016 if (strcmp(progname, "mount") == 0) {
7017 ret = manual_mount(argc, argv);
7018 } else if (strcmp(progname, "umount") == 0) {
7019 ret = manual_unmount(argc, argv);
7020 } else {
7021 /*
7022 * Make sure the user has specified some command.
7023 */
7024 if (argc < 2) {
7025 (void) fprintf(stderr, gettext("missing command\n"));
7026 usage(B_FALSE);
7027 }
7028
7029 cmdname = argv[1];
7030
7031 /*
7032 * The 'umount' command is an alias for 'unmount'
7033 */
7034 if (strcmp(cmdname, "umount") == 0)
7035 cmdname = "unmount";
7036
7037 /*
7038 * The 'recv' command is an alias for 'receive'
7039 */
7040 if (strcmp(cmdname, "recv") == 0)
7041 cmdname = "receive";
7042
7043 /*
7044 * The 'snap' command is an alias for 'snapshot'
7045 */
7046 if (strcmp(cmdname, "snap") == 0)
7047 cmdname = "snapshot";
7048
7049 /*
7050 * Special case '-?'
7051 */
7052 if (strcmp(cmdname, "-?") == 0)
7053 usage(B_TRUE);
7054
7055 /*
7056 * Run the appropriate command.
7057 */
7058 libzfs_mnttab_cache(g_zfs, B_TRUE);
7059 if (find_command_idx(cmdname, &i) == 0) {
7060 current_command = &command_table[i];
7061 ret = command_table[i].func(argc - 1, argv + 1);
7062 } else if (strchr(cmdname, '=') != NULL) {
7063 verify(find_command_idx("set", &i) == 0);
7064 current_command = &command_table[i];
7065 ret = command_table[i].func(argc, argv);
7066 } else {
7067 (void) fprintf(stderr, gettext("unrecognized "
7068 "command '%s'\n"), cmdname);
7069 usage(B_FALSE);
7070 }
7071 libzfs_mnttab_cache(g_zfs, B_FALSE);
7072 }
7073
7074 (void) fclose(mnttab_file);
7075
7076 if (ret == 0 && log_history)
7077 (void) zpool_log_history(g_zfs, history_str);
7078
7079 libzfs_fini(g_zfs);
7080
7081 /*
7082 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
7083 * for the purposes of running ::findleaks.
7084 */
7085 if (getenv("ZFS_ABORT") != NULL) {
7086 (void) printf("dumping core by request\n");
7087 abort();
7088 }
7089
7090 return (ret);
7091 }
Unleashed OS