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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) 2013 Steven Hartland. All rights reserved.
28 * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
29 */
30
31 #include <assert.h>
32 #include <ctype.h>
33 #include <errno.h>
34 #include <libgen.h>
35 #include <libintl.h>
36 #include <libuutil.h>
37 #include <libnvpair.h>
38 #include <locale.h>
39 #include <stddef.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <strings.h>
43 #include <unistd.h>
44 #include <fcntl.h>
45 #include <zone.h>
46 #include <grp.h>
47 #include <pwd.h>
48 #include <signal.h>
49 #include <sys/list.h>
50 #include <sys/mkdev.h>
51 #include <sys/mntent.h>
52 #include <sys/mnttab.h>
53 #include <sys/mount.h>
54 #include <sys/stat.h>
55 #include <sys/fs/zfs.h>
56 #include <sys/types.h>
57 #include <time.h>
58
59 #include <libzfs.h>
60 #include <libzfs_core.h>
61 #include <zfs_prop.h>
62 #include <zfs_deleg.h>
63 #include <libuutil.h>
64 #ifdef HAVE_IDMAP
65 #include <aclutils.h>
66 #include <directory.h>
67 #endif /* HAVE_IDMAP */
68
69 #include "zfs_iter.h"
70 #include "zfs_util.h"
71 #include "zfs_comutil.h"
72 #include "libzfs_impl.h"
73
74 libzfs_handle_t *g_zfs;
75
76 static FILE *mnttab_file;
77 static char history_str[HIS_MAX_RECORD_LEN];
78 static boolean_t log_history = B_TRUE;
79
80 static int zfs_do_clone(int argc, char **argv);
81 static int zfs_do_create(int argc, char **argv);
82 static int zfs_do_destroy(int argc, char **argv);
83 static int zfs_do_get(int argc, char **argv);
84 static int zfs_do_inherit(int argc, char **argv);
85 static int zfs_do_list(int argc, char **argv);
86 static int zfs_do_mount(int argc, char **argv);
87 static int zfs_do_rename(int argc, char **argv);
88 static int zfs_do_rollback(int argc, char **argv);
89 static int zfs_do_set(int argc, char **argv);
90 static int zfs_do_upgrade(int argc, char **argv);
91 static int zfs_do_snapshot(int argc, char **argv);
92 static int zfs_do_unmount(int argc, char **argv);
93 static int zfs_do_share(int argc, char **argv);
94 static int zfs_do_unshare(int argc, char **argv);
95 static int zfs_do_send(int argc, char **argv);
96 static int zfs_do_receive(int argc, char **argv);
97 static int zfs_do_promote(int argc, char **argv);
98 static int zfs_do_userspace(int argc, char **argv);
99 static int zfs_do_allow(int argc, char **argv);
100 static int zfs_do_unallow(int argc, char **argv);
101 static int zfs_do_hold(int argc, char **argv);
102 static int zfs_do_holds(int argc, char **argv);
103 static int zfs_do_release(int argc, char **argv);
104 static int zfs_do_diff(int argc, char **argv);
105 static int zfs_do_bookmark(int argc, char **argv);
106
107 /*
108 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
109 */
110
111 #ifdef DEBUG
112 const char *
113 _umem_debug_init(void)
114 {
115 return ("default,verbose"); /* $UMEM_DEBUG setting */
116 }
117
118 const char *
119 _umem_logging_init(void)
120 {
121 return ("fail,contents"); /* $UMEM_LOGGING setting */
122 }
123 #endif
124
125 typedef enum {
126 HELP_CLONE,
127 HELP_CREATE,
128 HELP_DESTROY,
129 HELP_GET,
130 HELP_INHERIT,
131 HELP_UPGRADE,
132 HELP_LIST,
133 HELP_MOUNT,
134 HELP_PROMOTE,
135 HELP_RECEIVE,
136 HELP_RENAME,
137 HELP_ROLLBACK,
138 HELP_SEND,
139 HELP_SET,
140 HELP_SHARE,
141 HELP_SNAPSHOT,
142 HELP_UNMOUNT,
143 HELP_UNSHARE,
144 HELP_ALLOW,
145 HELP_UNALLOW,
146 HELP_USERSPACE,
147 HELP_GROUPSPACE,
148 HELP_HOLD,
149 HELP_HOLDS,
150 HELP_RELEASE,
151 HELP_DIFF,
152 HELP_BOOKMARK,
153 } zfs_help_t;
154
155 typedef struct zfs_command {
156 const char *name;
157 int (*func)(int argc, char **argv);
158 zfs_help_t usage;
159 } zfs_command_t;
160
161 /*
162 * Master command table. Each ZFS command has a name, associated function, and
163 * usage message. The usage messages need to be internationalized, so we have
164 * to have a function to return the usage message based on a command index.
165 *
166 * These commands are organized according to how they are displayed in the usage
167 * message. An empty command (one with a NULL name) indicates an empty line in
168 * the generic usage message.
169 */
170 static zfs_command_t command_table[] = {
171 { "create", zfs_do_create, HELP_CREATE },
172 { "destroy", zfs_do_destroy, HELP_DESTROY },
173 { NULL },
174 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
175 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
176 { "clone", zfs_do_clone, HELP_CLONE },
177 { "promote", zfs_do_promote, HELP_PROMOTE },
178 { "rename", zfs_do_rename, HELP_RENAME },
179 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK },
180 { NULL },
181 { "list", zfs_do_list, HELP_LIST },
182 { NULL },
183 { "set", zfs_do_set, HELP_SET },
184 { "get", zfs_do_get, HELP_GET },
185 { "inherit", zfs_do_inherit, HELP_INHERIT },
186 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
187 { "userspace", zfs_do_userspace, HELP_USERSPACE },
188 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
189 { NULL },
190 { "mount", zfs_do_mount, HELP_MOUNT },
191 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
192 { "share", zfs_do_share, HELP_SHARE },
193 { "unshare", zfs_do_unshare, HELP_UNSHARE },
194 { NULL },
195 { "send", zfs_do_send, HELP_SEND },
196 { "receive", zfs_do_receive, HELP_RECEIVE },
197 { NULL },
198 { "allow", zfs_do_allow, HELP_ALLOW },
199 { NULL },
200 { "unallow", zfs_do_unallow, HELP_UNALLOW },
201 { NULL },
202 { "hold", zfs_do_hold, HELP_HOLD },
203 { "holds", zfs_do_holds, HELP_HOLDS },
204 { "release", zfs_do_release, HELP_RELEASE },
205 { "diff", zfs_do_diff, HELP_DIFF },
206 };
207
208 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
209
210 zfs_command_t *current_command;
211
212 static const char *
213 get_usage(zfs_help_t idx)
214 {
215 switch (idx) {
216 case HELP_CLONE:
217 return (gettext("\tclone [-p] [-o property=value] ... "
218 "<snapshot> <filesystem|volume>\n"));
219 case HELP_CREATE:
220 return (gettext("\tcreate [-p] [-o property=value] ... "
221 "<filesystem>\n"
222 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
223 "-V <size> <volume>\n"));
224 case HELP_DESTROY:
225 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
226 "\tdestroy [-dnpRrv] "
227 "<filesystem|volume>@<snap>[%<snap>][,...]\n"
228 "\tdestroy <filesystem|volume>#<bookmark>\n"));
229 case HELP_GET:
230 return (gettext("\tget [-rHp] [-d max] "
231 "[-o \"all\" | field[,...]]\n"
232 "\t [-t type[,...]] [-s source[,...]]\n"
233 "\t <\"all\" | property[,...]> "
234 "[filesystem|volume|snapshot] ...\n"));
235 case HELP_INHERIT:
236 return (gettext("\tinherit [-rS] <property> "
237 "<filesystem|volume|snapshot> ...\n"));
238 case HELP_UPGRADE:
239 return (gettext("\tupgrade [-v]\n"
240 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
241 case HELP_LIST:
242 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] "
243 "[-s property]...\n\t [-S property]... [-t type[,...]] "
244 "[filesystem|volume|snapshot] ...\n"));
245 case HELP_MOUNT:
246 return (gettext("\tmount\n"
247 "\tmount [-vO] [-o opts] <-a | filesystem>\n"));
248 case HELP_PROMOTE:
249 return (gettext("\tpromote <clone-filesystem>\n"));
250 case HELP_RECEIVE:
251 return (gettext("\treceive [-vnsFu] <filesystem|volume|"
252 "snapshot>\n"
253 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] "
254 "<filesystem>\n"
255 "\treceive -A <filesystem|volume>\n"));
256 case HELP_RENAME:
257 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
258 "<filesystem|volume|snapshot>\n"
259 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
260 "\trename -r <snapshot> <snapshot>\n"));
261 case HELP_ROLLBACK:
262 return (gettext("\trollback [-rRf] <snapshot>\n"));
263 case HELP_SEND:
264 return (gettext("\tsend [-DnPpRvLec] [-[iI] snapshot] "
265 "<snapshot>\n"
266 "\tsend [-Le] [-i snapshot|bookmark] "
267 "<filesystem|volume|snapshot>\n"
268 "\tsend [-nvPe] -t <receive_resume_token>\n"));
269 case HELP_SET:
270 return (gettext("\tset <property=value> ... "
271 "<filesystem|volume|snapshot> ...\n"));
272 case HELP_SHARE:
273 return (gettext("\tshare <-a | filesystem>\n"));
274 case HELP_SNAPSHOT:
275 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... "
276 "<filesystem|volume>@<snap> ...\n"));
277 case HELP_UNMOUNT:
278 return (gettext("\tunmount [-f] "
279 "<-a | filesystem|mountpoint>\n"));
280 case HELP_UNSHARE:
281 return (gettext("\tunshare "
282 "<-a | filesystem|mountpoint>\n"));
283 case HELP_ALLOW:
284 return (gettext("\tallow <filesystem|volume>\n"
285 "\tallow [-ldug] "
286 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
287 "\t <filesystem|volume>\n"
288 "\tallow [-ld] -e <perm|@setname>[,...] "
289 "<filesystem|volume>\n"
290 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
291 "\tallow -s @setname <perm|@setname>[,...] "
292 "<filesystem|volume>\n"));
293 case HELP_UNALLOW:
294 return (gettext("\tunallow [-rldug] "
295 "<\"everyone\"|user|group>[,...]\n"
296 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
297 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
298 "<filesystem|volume>\n"
299 "\tunallow [-r] -c [<perm|@setname>[,...]] "
300 "<filesystem|volume>\n"
301 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
302 "<filesystem|volume>\n"));
303 case HELP_USERSPACE:
304 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
305 "[-s field] ...\n"
306 "\t [-S field] ... [-t type[,...]] "
307 "<filesystem|snapshot>\n"));
308 case HELP_GROUPSPACE:
309 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
310 "[-s field] ...\n"
311 "\t [-S field] ... [-t type[,...]] "
312 "<filesystem|snapshot>\n"));
313 case HELP_HOLD:
314 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
315 case HELP_HOLDS:
316 return (gettext("\tholds [-r] <snapshot> ...\n"));
317 case HELP_RELEASE:
318 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
319 case HELP_DIFF:
320 return (gettext("\tdiff [-FHt] <snapshot> "
321 "[snapshot|filesystem]\n"));
322 case HELP_BOOKMARK:
323 return (gettext("\tbookmark <snapshot> <bookmark>\n"));
324 }
325
326 abort();
327 /* NOTREACHED */
328 }
329
330 void
331 nomem(void)
332 {
333 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
334 exit(1);
335 }
336
337 /*
338 * Utility function to guarantee malloc() success.
339 */
340
341 void *
342 safe_malloc(size_t size)
343 {
344 void *data;
345
346 if ((data = calloc(1, size)) == NULL)
347 nomem();
348
349 return (data);
350 }
351
352 static char *
353 safe_strdup(char *str)
354 {
355 char *dupstr = strdup(str);
356
357 if (dupstr == NULL)
358 nomem();
359
360 return (dupstr);
361 }
362
363 /*
364 * Callback routine that will print out information for each of
365 * the properties.
366 */
367 static int
368 usage_prop_cb(int prop, void *cb)
369 {
370 FILE *fp = cb;
371
372 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
373
374 if (zfs_prop_readonly(prop))
375 (void) fprintf(fp, " NO ");
376 else
377 (void) fprintf(fp, "YES ");
378
379 if (zfs_prop_inheritable(prop))
380 (void) fprintf(fp, " YES ");
381 else
382 (void) fprintf(fp, " NO ");
383
384 if (zfs_prop_values(prop) == NULL)
385 (void) fprintf(fp, "-\n");
386 else
387 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
388
389 return (ZPROP_CONT);
390 }
391
392 /*
393 * Display usage message. If we're inside a command, display only the usage for
394 * that command. Otherwise, iterate over the entire command table and display
395 * a complete usage message.
396 */
397 static void
398 usage(boolean_t requested)
399 {
400 int i;
401 boolean_t show_properties = B_FALSE;
402 FILE *fp = requested ? stdout : stderr;
403
404 if (current_command == NULL) {
405
406 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
407 (void) fprintf(fp,
408 gettext("where 'command' is one of the following:\n\n"));
409
410 for (i = 0; i < NCOMMAND; i++) {
411 if (command_table[i].name == NULL)
412 (void) fprintf(fp, "\n");
413 else
414 (void) fprintf(fp, "%s",
415 get_usage(command_table[i].usage));
416 }
417
418 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
419 "pool/[dataset/]*dataset[@name]\n"));
420 } else {
421 (void) fprintf(fp, gettext("usage:\n"));
422 (void) fprintf(fp, "%s", get_usage(current_command->usage));
423 }
424
425 if (current_command != NULL &&
426 (strcmp(current_command->name, "set") == 0 ||
427 strcmp(current_command->name, "get") == 0 ||
428 strcmp(current_command->name, "inherit") == 0 ||
429 strcmp(current_command->name, "list") == 0))
430 show_properties = B_TRUE;
431
432 if (show_properties) {
433 (void) fprintf(fp,
434 gettext("\nThe following properties are supported:\n"));
435
436 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
437 "PROPERTY", "EDIT", "INHERIT", "VALUES");
438
439 /* Iterate over all properties */
440 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
441 ZFS_TYPE_DATASET);
442
443 (void) fprintf(fp, "\t%-15s ", "userused@...");
444 (void) fprintf(fp, " NO NO <size>\n");
445 (void) fprintf(fp, "\t%-15s ", "groupused@...");
446 (void) fprintf(fp, " NO NO <size>\n");
447 (void) fprintf(fp, "\t%-15s ", "userquota@...");
448 (void) fprintf(fp, "YES NO <size> | none\n");
449 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
450 (void) fprintf(fp, "YES NO <size> | none\n");
451 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
452 (void) fprintf(fp, " NO NO <size>\n");
453
454 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
455 "with standard units such as K, M, G, etc.\n"));
456 (void) fprintf(fp, gettext("\nUser-defined properties can "
457 "be specified by using a name containing a colon (:).\n"));
458 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
459 "properties must be appended with\n"
460 "a user or group specifier of one of these forms:\n"
461 " POSIX name (eg: \"matt\")\n"
462 " POSIX id (eg: \"126829\")\n"
463 " SMB name@domain (eg: \"matt@sun\")\n"
464 " SMB SID (eg: \"S-1-234-567-89\")\n"));
465 } else {
466 (void) fprintf(fp,
467 gettext("\nFor the property list, run: %s\n"),
468 "zfs set|get");
469 (void) fprintf(fp,
470 gettext("\nFor the delegated permission list, run: %s\n"),
471 "zfs allow|unallow");
472 }
473
474 /*
475 * See comments at end of main().
476 */
477 if (getenv("ZFS_ABORT") != NULL) {
478 (void) printf("dumping core by request\n");
479 abort();
480 }
481
482 exit(requested ? 0 : 2);
483 }
484
485 /*
486 * Take a property=value argument string and add it to the given nvlist.
487 * Modifies the argument inplace.
488 */
489 static int
490 parseprop(nvlist_t *props, char *propname)
491 {
492 char *propval, *strval;
493
494 if ((propval = strchr(propname, '=')) == NULL) {
495 (void) fprintf(stderr, gettext("missing "
496 "'=' for property=value argument\n"));
497 return (-1);
498 }
499 *propval = '\0';
500 propval++;
501 if (nvlist_lookup_string(props, propname, &strval) == 0) {
502 (void) fprintf(stderr, gettext("property '%s' "
503 "specified multiple times\n"), propname);
504 return (-1);
505 }
506 if (nvlist_add_string(props, propname, propval) != 0)
507 nomem();
508 return (0);
509 }
510
511 static int
512 parse_depth(char *opt, int *flags)
513 {
514 char *tmp;
515 int depth;
516
517 depth = (int)strtol(opt, &tmp, 0);
518 if (*tmp) {
519 (void) fprintf(stderr,
520 gettext("%s is not an integer\n"), optarg);
521 usage(B_FALSE);
522 }
523 if (depth < 0) {
524 (void) fprintf(stderr,
525 gettext("Depth can not be negative.\n"));
526 usage(B_FALSE);
527 }
528 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
529 return (depth);
530 }
531
532 #define PROGRESS_DELAY 2 /* seconds */
533
534 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";
535 static time_t pt_begin;
536 static char *pt_header = NULL;
537 static boolean_t pt_shown;
538
539 static void
540 start_progress_timer(void)
541 {
542 pt_begin = time(NULL) + PROGRESS_DELAY;
543 pt_shown = B_FALSE;
544 }
545
546 static void
547 set_progress_header(char *header)
548 {
549 assert(pt_header == NULL);
550 pt_header = safe_strdup(header);
551 if (pt_shown) {
552 (void) printf("%s: ", header);
553 (void) fflush(stdout);
554 }
555 }
556
557 static void
558 update_progress(char *update)
559 {
560 if (!pt_shown && time(NULL) > pt_begin) {
561 int len = strlen(update);
562
563 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
564 pt_reverse);
565 (void) fflush(stdout);
566 pt_shown = B_TRUE;
567 } else if (pt_shown) {
568 int len = strlen(update);
569
570 (void) printf("%s%*.*s", update, len, len, pt_reverse);
571 (void) fflush(stdout);
572 }
573 }
574
575 static void
576 finish_progress(char *done)
577 {
578 if (pt_shown) {
579 (void) printf("%s\n", done);
580 (void) fflush(stdout);
581 }
582 free(pt_header);
583 pt_header = NULL;
584 }
585
586 static int
587 zfs_mount_and_share(libzfs_handle_t *hdl, const char *dataset, zfs_type_t type)
588 {
589 zfs_handle_t *zhp = NULL;
590 int ret = 0;
591
592 zhp = zfs_open(hdl, dataset, type);
593 if (zhp == NULL)
594 return (1);
595
596 /*
597 * Volumes may neither be mounted or shared. Potentially in the
598 * future filesystems detected on these volumes could be mounted.
599 */
600 if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) {
601 zfs_close(zhp);
602 return (0);
603 }
604
605 /*
606 * Mount and/or share the new filesystem as appropriate. We provide a
607 * verbose error message to let the user know that their filesystem was
608 * in fact created, even if we failed to mount or share it.
609 *
610 * If the user doesn't want the dataset automatically mounted, then
611 * skip the mount/share step
612 */
613 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) &&
614 zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) {
615 if (geteuid() != 0) {
616 (void) fprintf(stderr, gettext("filesystem "
617 "successfully created, but it may only be "
618 "mounted by root\n"));
619 ret = 1;
620 } else if (zfs_mount(zhp, NULL, 0) != 0) {
621 (void) fprintf(stderr, gettext("filesystem "
622 "successfully created, but not mounted\n"));
623 ret = 1;
624 } else if (zfs_share(zhp) != 0) {
625 (void) fprintf(stderr, gettext("filesystem "
626 "successfully created, but not shared\n"));
627 ret = 1;
628 }
629 }
630
631 zfs_close(zhp);
632
633 return (ret);
634 }
635
636 /*
637 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
638 *
639 * Given an existing dataset, create a writable copy whose initial contents
640 * are the same as the source. The newly created dataset maintains a
641 * dependency on the original; the original cannot be destroyed so long as
642 * the clone exists.
643 *
644 * The '-p' flag creates all the non-existing ancestors of the target first.
645 */
646 static int
647 zfs_do_clone(int argc, char **argv)
648 {
649 zfs_handle_t *zhp = NULL;
650 boolean_t parents = B_FALSE;
651 nvlist_t *props;
652 int ret = 0;
653 int c;
654
655 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
656 nomem();
657
658 /* check options */
659 while ((c = getopt(argc, argv, "o:p")) != -1) {
660 switch (c) {
661 case 'o':
662 if (parseprop(props, optarg) != 0) {
663 nvlist_free(props);
664 return (1);
665 }
666 break;
667 case 'p':
668 parents = B_TRUE;
669 break;
670 case '?':
671 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
672 optopt);
673 goto usage;
674 }
675 }
676
677 argc -= optind;
678 argv += optind;
679
680 /* check number of arguments */
681 if (argc < 1) {
682 (void) fprintf(stderr, gettext("missing source dataset "
683 "argument\n"));
684 goto usage;
685 }
686 if (argc < 2) {
687 (void) fprintf(stderr, gettext("missing target dataset "
688 "argument\n"));
689 goto usage;
690 }
691 if (argc > 2) {
692 (void) fprintf(stderr, gettext("too many arguments\n"));
693 goto usage;
694 }
695
696 /* open the source dataset */
697 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) {
698 nvlist_free(props);
699 return (1);
700 }
701
702 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
703 ZFS_TYPE_VOLUME)) {
704 /*
705 * Now create the ancestors of the target dataset. If the
706 * target already exists and '-p' option was used we should not
707 * complain.
708 */
709 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
710 ZFS_TYPE_VOLUME)) {
711 zfs_close(zhp);
712 nvlist_free(props);
713 return (0);
714 }
715 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) {
716 zfs_close(zhp);
717 nvlist_free(props);
718 return (1);
719 }
720 }
721
722 /* pass to libzfs */
723 ret = zfs_clone(zhp, argv[1], props);
724
725 /* create the mountpoint if necessary */
726 if (ret == 0) {
727 if (log_history) {
728 (void) zpool_log_history(g_zfs, history_str);
729 log_history = B_FALSE;
730 }
731
732 ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET);
733 }
734
735 zfs_close(zhp);
736 nvlist_free(props);
737
738 return (!!ret);
739
740 usage:
741 if (zhp)
742 zfs_close(zhp);
743 nvlist_free(props);
744 usage(B_FALSE);
745 return (-1);
746 }
747
748 /*
749 * zfs create [-p] [-o prop=value] ... fs
750 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
751 *
752 * Create a new dataset. This command can be used to create filesystems
753 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
754 * For volumes, the user must specify a size to be used.
755 *
756 * The '-s' flag applies only to volumes, and indicates that we should not try
757 * to set the reservation for this volume. By default we set a reservation
758 * equal to the size for any volume. For pools with SPA_VERSION >=
759 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
760 *
761 * The '-p' flag creates all the non-existing ancestors of the target first.
762 */
763 static int
764 zfs_do_create(int argc, char **argv)
765 {
766 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
767 uint64_t volsize = 0;
768 int c;
769 boolean_t noreserve = B_FALSE;
770 boolean_t bflag = B_FALSE;
771 boolean_t parents = B_FALSE;
772 int ret = 1;
773 nvlist_t *props;
774 uint64_t intval;
775
776 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
777 nomem();
778
779 /* check options */
780 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
781 switch (c) {
782 case 'V':
783 type = ZFS_TYPE_VOLUME;
784 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
785 (void) fprintf(stderr, gettext("bad volume "
786 "size '%s': %s\n"), optarg,
787 libzfs_error_description(g_zfs));
788 goto error;
789 }
790
791 if (nvlist_add_uint64(props,
792 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
793 nomem();
794 volsize = intval;
795 break;
796 case 'p':
797 parents = B_TRUE;
798 break;
799 case 'b':
800 bflag = B_TRUE;
801 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
802 (void) fprintf(stderr, gettext("bad volume "
803 "block size '%s': %s\n"), optarg,
804 libzfs_error_description(g_zfs));
805 goto error;
806 }
807
808 if (nvlist_add_uint64(props,
809 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
810 intval) != 0)
811 nomem();
812 break;
813 case 'o':
814 if (parseprop(props, optarg) != 0)
815 goto error;
816 break;
817 case 's':
818 noreserve = B_TRUE;
819 break;
820 case ':':
821 (void) fprintf(stderr, gettext("missing size "
822 "argument\n"));
823 goto badusage;
824 case '?':
825 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
826 optopt);
827 goto badusage;
828 }
829 }
830
831 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
832 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
833 "used when creating a volume\n"));
834 goto badusage;
835 }
836
837 argc -= optind;
838 argv += optind;
839
840 /* check number of arguments */
841 if (argc == 0) {
842 (void) fprintf(stderr, gettext("missing %s argument\n"),
843 zfs_type_to_name(type));
844 goto badusage;
845 }
846 if (argc > 1) {
847 (void) fprintf(stderr, gettext("too many arguments\n"));
848 goto badusage;
849 }
850
851 if (type == ZFS_TYPE_VOLUME && !noreserve) {
852 zpool_handle_t *zpool_handle;
853 nvlist_t *real_props = NULL;
854 uint64_t spa_version;
855 char *p;
856 zfs_prop_t resv_prop;
857 char *strval;
858 char msg[1024];
859
860 if ((p = strchr(argv[0], '/')))
861 *p = '\0';
862 zpool_handle = zpool_open(g_zfs, argv[0]);
863 if (p != NULL)
864 *p = '/';
865 if (zpool_handle == NULL)
866 goto error;
867 spa_version = zpool_get_prop_int(zpool_handle,
868 ZPOOL_PROP_VERSION, NULL);
869 if (spa_version >= SPA_VERSION_REFRESERVATION)
870 resv_prop = ZFS_PROP_REFRESERVATION;
871 else
872 resv_prop = ZFS_PROP_RESERVATION;
873
874 (void) snprintf(msg, sizeof (msg),
875 gettext("cannot create '%s'"), argv[0]);
876 if (props && (real_props = zfs_valid_proplist(g_zfs, type,
877 props, 0, NULL, zpool_handle, msg)) == NULL) {
878 zpool_close(zpool_handle);
879 goto error;
880 }
881 zpool_close(zpool_handle);
882
883 volsize = zvol_volsize_to_reservation(volsize, real_props);
884 nvlist_free(real_props);
885
886 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
887 &strval) != 0) {
888 if (nvlist_add_uint64(props,
889 zfs_prop_to_name(resv_prop), volsize) != 0) {
890 nvlist_free(props);
891 nomem();
892 }
893 }
894 }
895
896 if (parents && zfs_name_valid(argv[0], type)) {
897 /*
898 * Now create the ancestors of target dataset. If the target
899 * already exists and '-p' option was used we should not
900 * complain.
901 */
902 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
903 ret = 0;
904 goto error;
905 }
906 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
907 goto error;
908 }
909
910 /* pass to libzfs */
911 if (zfs_create(g_zfs, argv[0], type, props) != 0)
912 goto error;
913
914 if (log_history) {
915 (void) zpool_log_history(g_zfs, history_str);
916 log_history = B_FALSE;
917 }
918
919 ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET);
920 error:
921 nvlist_free(props);
922 return (ret);
923 badusage:
924 nvlist_free(props);
925 usage(B_FALSE);
926 return (2);
927 }
928
929 /*
930 * zfs destroy [-rRf] <fs, vol>
931 * zfs destroy [-rRd] <snap>
932 *
933 * -r Recursively destroy all children
934 * -R Recursively destroy all dependents, including clones
935 * -f Force unmounting of any dependents
936 * -d If we can't destroy now, mark for deferred destruction
937 *
938 * Destroys the given dataset. By default, it will unmount any filesystems,
939 * and refuse to destroy a dataset that has any dependents. A dependent can
940 * either be a child, or a clone of a child.
941 */
942 typedef struct destroy_cbdata {
943 boolean_t cb_first;
944 boolean_t cb_force;
945 boolean_t cb_recurse;
946 boolean_t cb_error;
947 boolean_t cb_doclones;
948 zfs_handle_t *cb_target;
949 boolean_t cb_defer_destroy;
950 boolean_t cb_verbose;
951 boolean_t cb_parsable;
952 boolean_t cb_dryrun;
953 nvlist_t *cb_nvl;
954 nvlist_t *cb_batchedsnaps;
955
956 /* first snap in contiguous run */
957 char *cb_firstsnap;
958 /* previous snap in contiguous run */
959 char *cb_prevsnap;
960 int64_t cb_snapused;
961 char *cb_snapspec;
962 char *cb_bookmark;
963 } destroy_cbdata_t;
964
965 /*
966 * Check for any dependents based on the '-r' or '-R' flags.
967 */
968 static int
969 destroy_check_dependent(zfs_handle_t *zhp, void *data)
970 {
971 destroy_cbdata_t *cbp = data;
972 const char *tname = zfs_get_name(cbp->cb_target);
973 const char *name = zfs_get_name(zhp);
974
975 if (strncmp(tname, name, strlen(tname)) == 0 &&
976 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
977 /*
978 * This is a direct descendant, not a clone somewhere else in
979 * the hierarchy.
980 */
981 if (cbp->cb_recurse)
982 goto out;
983
984 if (cbp->cb_first) {
985 (void) fprintf(stderr, gettext("cannot destroy '%s': "
986 "%s has children\n"),
987 zfs_get_name(cbp->cb_target),
988 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
989 (void) fprintf(stderr, gettext("use '-r' to destroy "
990 "the following datasets:\n"));
991 cbp->cb_first = B_FALSE;
992 cbp->cb_error = B_TRUE;
993 }
994
995 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
996 } else {
997 /*
998 * This is a clone. We only want to report this if the '-r'
999 * wasn't specified, or the target is a snapshot.
1000 */
1001 if (!cbp->cb_recurse &&
1002 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
1003 goto out;
1004
1005 if (cbp->cb_first) {
1006 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1007 "%s has dependent clones\n"),
1008 zfs_get_name(cbp->cb_target),
1009 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1010 (void) fprintf(stderr, gettext("use '-R' to destroy "
1011 "the following datasets:\n"));
1012 cbp->cb_first = B_FALSE;
1013 cbp->cb_error = B_TRUE;
1014 cbp->cb_dryrun = B_TRUE;
1015 }
1016
1017 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1018 }
1019
1020 out:
1021 zfs_close(zhp);
1022 return (0);
1023 }
1024
1025 static int
1026 destroy_callback(zfs_handle_t *zhp, void *data)
1027 {
1028 destroy_cbdata_t *cb = data;
1029 const char *name = zfs_get_name(zhp);
1030
1031 if (cb->cb_verbose) {
1032 if (cb->cb_parsable) {
1033 (void) printf("destroy\t%s\n", name);
1034 } else if (cb->cb_dryrun) {
1035 (void) printf(gettext("would destroy %s\n"),
1036 name);
1037 } else {
1038 (void) printf(gettext("will destroy %s\n"),
1039 name);
1040 }
1041 }
1042
1043 /*
1044 * Ignore pools (which we've already flagged as an error before getting
1045 * here).
1046 */
1047 if (strchr(zfs_get_name(zhp), '/') == NULL &&
1048 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1049 zfs_close(zhp);
1050 return (0);
1051 }
1052 if (cb->cb_dryrun) {
1053 zfs_close(zhp);
1054 return (0);
1055 }
1056
1057 /*
1058 * We batch up all contiguous snapshots (even of different
1059 * filesystems) and destroy them with one ioctl. We can't
1060 * simply do all snap deletions and then all fs deletions,
1061 * because we must delete a clone before its origin.
1062 */
1063 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
1064 fnvlist_add_boolean(cb->cb_batchedsnaps, name);
1065 } else {
1066 int error = zfs_destroy_snaps_nvl(g_zfs,
1067 cb->cb_batchedsnaps, B_FALSE);
1068 fnvlist_free(cb->cb_batchedsnaps);
1069 cb->cb_batchedsnaps = fnvlist_alloc();
1070
1071 if (error != 0 ||
1072 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
1073 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
1074 zfs_close(zhp);
1075 return (-1);
1076 }
1077 }
1078
1079 zfs_close(zhp);
1080 return (0);
1081 }
1082
1083 static int
1084 destroy_print_cb(zfs_handle_t *zhp, void *arg)
1085 {
1086 destroy_cbdata_t *cb = arg;
1087 const char *name = zfs_get_name(zhp);
1088 int err = 0;
1089
1090 if (nvlist_exists(cb->cb_nvl, name)) {
1091 if (cb->cb_firstsnap == NULL)
1092 cb->cb_firstsnap = strdup(name);
1093 if (cb->cb_prevsnap != NULL)
1094 free(cb->cb_prevsnap);
1095 /* this snap continues the current range */
1096 cb->cb_prevsnap = strdup(name);
1097 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1098 nomem();
1099 if (cb->cb_verbose) {
1100 if (cb->cb_parsable) {
1101 (void) printf("destroy\t%s\n", name);
1102 } else if (cb->cb_dryrun) {
1103 (void) printf(gettext("would destroy %s\n"),
1104 name);
1105 } else {
1106 (void) printf(gettext("will destroy %s\n"),
1107 name);
1108 }
1109 }
1110 } else if (cb->cb_firstsnap != NULL) {
1111 /* end of this range */
1112 uint64_t used = 0;
1113 err = lzc_snaprange_space(cb->cb_firstsnap,
1114 cb->cb_prevsnap, &used);
1115 cb->cb_snapused += used;
1116 free(cb->cb_firstsnap);
1117 cb->cb_firstsnap = NULL;
1118 free(cb->cb_prevsnap);
1119 cb->cb_prevsnap = NULL;
1120 }
1121 zfs_close(zhp);
1122 return (err);
1123 }
1124
1125 static int
1126 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1127 {
1128 int err;
1129 assert(cb->cb_firstsnap == NULL);
1130 assert(cb->cb_prevsnap == NULL);
1131 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1132 if (cb->cb_firstsnap != NULL) {
1133 uint64_t used = 0;
1134 if (err == 0) {
1135 err = lzc_snaprange_space(cb->cb_firstsnap,
1136 cb->cb_prevsnap, &used);
1137 }
1138 cb->cb_snapused += used;
1139 free(cb->cb_firstsnap);
1140 cb->cb_firstsnap = NULL;
1141 free(cb->cb_prevsnap);
1142 cb->cb_prevsnap = NULL;
1143 }
1144 return (err);
1145 }
1146
1147 static int
1148 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1149 {
1150 destroy_cbdata_t *cb = arg;
1151 int err = 0;
1152
1153 /* Check for clones. */
1154 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1155 cb->cb_target = zhp;
1156 cb->cb_first = B_TRUE;
1157 err = zfs_iter_dependents(zhp, B_TRUE,
1158 destroy_check_dependent, cb);
1159 }
1160
1161 if (err == 0) {
1162 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1163 nomem();
1164 }
1165 zfs_close(zhp);
1166 return (err);
1167 }
1168
1169 static int
1170 gather_snapshots(zfs_handle_t *zhp, void *arg)
1171 {
1172 destroy_cbdata_t *cb = arg;
1173 int err = 0;
1174
1175 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1176 if (err == ENOENT)
1177 err = 0;
1178 if (err != 0)
1179 goto out;
1180
1181 if (cb->cb_verbose) {
1182 err = destroy_print_snapshots(zhp, cb);
1183 if (err != 0)
1184 goto out;
1185 }
1186
1187 if (cb->cb_recurse)
1188 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1189
1190 out:
1191 zfs_close(zhp);
1192 return (err);
1193 }
1194
1195 static int
1196 destroy_clones(destroy_cbdata_t *cb)
1197 {
1198 nvpair_t *pair;
1199 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1200 pair != NULL;
1201 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1202 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1203 ZFS_TYPE_SNAPSHOT);
1204 if (zhp != NULL) {
1205 boolean_t defer = cb->cb_defer_destroy;
1206 int err;
1207
1208 /*
1209 * We can't defer destroy non-snapshots, so set it to
1210 * false while destroying the clones.
1211 */
1212 cb->cb_defer_destroy = B_FALSE;
1213 err = zfs_iter_dependents(zhp, B_FALSE,
1214 destroy_callback, cb);
1215 cb->cb_defer_destroy = defer;
1216 zfs_close(zhp);
1217 if (err != 0)
1218 return (err);
1219 }
1220 }
1221 return (0);
1222 }
1223
1224 static int
1225 zfs_do_destroy(int argc, char **argv)
1226 {
1227 destroy_cbdata_t cb = { 0 };
1228 int rv = 0;
1229 int err = 0;
1230 int c;
1231 zfs_handle_t *zhp = NULL;
1232 char *at, *pound;
1233 zfs_type_t type = ZFS_TYPE_DATASET;
1234
1235 /* check options */
1236 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1237 switch (c) {
1238 case 'v':
1239 cb.cb_verbose = B_TRUE;
1240 break;
1241 case 'p':
1242 cb.cb_verbose = B_TRUE;
1243 cb.cb_parsable = B_TRUE;
1244 break;
1245 case 'n':
1246 cb.cb_dryrun = B_TRUE;
1247 break;
1248 case 'd':
1249 cb.cb_defer_destroy = B_TRUE;
1250 type = ZFS_TYPE_SNAPSHOT;
1251 break;
1252 case 'f':
1253 cb.cb_force = B_TRUE;
1254 break;
1255 case 'r':
1256 cb.cb_recurse = B_TRUE;
1257 break;
1258 case 'R':
1259 cb.cb_recurse = B_TRUE;
1260 cb.cb_doclones = B_TRUE;
1261 break;
1262 case '?':
1263 default:
1264 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1265 optopt);
1266 usage(B_FALSE);
1267 }
1268 }
1269
1270 argc -= optind;
1271 argv += optind;
1272
1273 /* check number of arguments */
1274 if (argc == 0) {
1275 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1276 usage(B_FALSE);
1277 }
1278 if (argc > 1) {
1279 (void) fprintf(stderr, gettext("too many arguments\n"));
1280 usage(B_FALSE);
1281 }
1282
1283 at = strchr(argv[0], '@');
1284 pound = strchr(argv[0], '#');
1285 if (at != NULL) {
1286
1287 /* Build the list of snaps to destroy in cb_nvl. */
1288 cb.cb_nvl = fnvlist_alloc();
1289
1290 *at = '\0';
1291 zhp = zfs_open(g_zfs, argv[0],
1292 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1293 if (zhp == NULL) {
1294 nvlist_free(cb.cb_nvl);
1295 return (1);
1296 }
1297
1298 cb.cb_snapspec = at + 1;
1299 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1300 cb.cb_error) {
1301 rv = 1;
1302 goto out;
1303 }
1304
1305 if (nvlist_empty(cb.cb_nvl)) {
1306 (void) fprintf(stderr, gettext("could not find any "
1307 "snapshots to destroy; check snapshot names.\n"));
1308 rv = 1;
1309 goto out;
1310 }
1311
1312 if (cb.cb_verbose) {
1313 char buf[16];
1314 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1315 if (cb.cb_parsable) {
1316 (void) printf("reclaim\t%llu\n",
1317 (u_longlong_t)cb.cb_snapused);
1318 } else if (cb.cb_dryrun) {
1319 (void) printf(gettext("would reclaim %s\n"),
1320 buf);
1321 } else {
1322 (void) printf(gettext("will reclaim %s\n"),
1323 buf);
1324 }
1325 }
1326
1327 if (!cb.cb_dryrun) {
1328 if (cb.cb_doclones) {
1329 cb.cb_batchedsnaps = fnvlist_alloc();
1330 err = destroy_clones(&cb);
1331 if (err == 0) {
1332 err = zfs_destroy_snaps_nvl(g_zfs,
1333 cb.cb_batchedsnaps, B_FALSE);
1334 }
1335 if (err != 0) {
1336 rv = 1;
1337 goto out;
1338 }
1339 }
1340 if (err == 0) {
1341 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1342 cb.cb_defer_destroy);
1343 }
1344 }
1345
1346 if (err != 0)
1347 rv = 1;
1348 } else if (pound != NULL) {
1349 int err;
1350 nvlist_t *nvl;
1351
1352 if (cb.cb_dryrun) {
1353 (void) fprintf(stderr,
1354 "dryrun is not supported with bookmark\n");
1355 return (-1);
1356 }
1357
1358 if (cb.cb_defer_destroy) {
1359 (void) fprintf(stderr,
1360 "defer destroy is not supported with bookmark\n");
1361 return (-1);
1362 }
1363
1364 if (cb.cb_recurse) {
1365 (void) fprintf(stderr,
1366 "recursive is not supported with bookmark\n");
1367 return (-1);
1368 }
1369
1370 if (!zfs_bookmark_exists(argv[0])) {
1371 (void) fprintf(stderr, gettext("bookmark '%s' "
1372 "does not exist.\n"), argv[0]);
1373 return (1);
1374 }
1375
1376 nvl = fnvlist_alloc();
1377 fnvlist_add_boolean(nvl, argv[0]);
1378
1379 err = lzc_destroy_bookmarks(nvl, NULL);
1380 if (err != 0) {
1381 (void) zfs_standard_error(g_zfs, err,
1382 "cannot destroy bookmark");
1383 }
1384
1385 nvlist_free(nvl);
1386
1387 return (err);
1388 } else {
1389 /* Open the given dataset */
1390 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1391 return (1);
1392
1393 cb.cb_target = zhp;
1394
1395 /*
1396 * Perform an explicit check for pools before going any further.
1397 */
1398 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1399 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1400 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1401 "operation does not apply to pools\n"),
1402 zfs_get_name(zhp));
1403 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1404 "%s' to destroy all datasets in the pool\n"),
1405 zfs_get_name(zhp));
1406 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1407 "to destroy the pool itself\n"), zfs_get_name(zhp));
1408 rv = 1;
1409 goto out;
1410 }
1411
1412 /*
1413 * Check for any dependents and/or clones.
1414 */
1415 cb.cb_first = B_TRUE;
1416 if (!cb.cb_doclones &&
1417 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1418 &cb) != 0) {
1419 rv = 1;
1420 goto out;
1421 }
1422
1423 if (cb.cb_error) {
1424 rv = 1;
1425 goto out;
1426 }
1427
1428 cb.cb_batchedsnaps = fnvlist_alloc();
1429 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1430 &cb) != 0) {
1431 rv = 1;
1432 goto out;
1433 }
1434
1435 /*
1436 * Do the real thing. The callback will close the
1437 * handle regardless of whether it succeeds or not.
1438 */
1439 err = destroy_callback(zhp, &cb);
1440 zhp = NULL;
1441 if (err == 0) {
1442 err = zfs_destroy_snaps_nvl(g_zfs,
1443 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1444 }
1445 if (err != 0)
1446 rv = 1;
1447 }
1448
1449 out:
1450 fnvlist_free(cb.cb_batchedsnaps);
1451 fnvlist_free(cb.cb_nvl);
1452 if (zhp != NULL)
1453 zfs_close(zhp);
1454 return (rv);
1455 }
1456
1457 static boolean_t
1458 is_recvd_column(zprop_get_cbdata_t *cbp)
1459 {
1460 int i;
1461 zfs_get_column_t col;
1462
1463 for (i = 0; i < ZFS_GET_NCOLS &&
1464 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1465 if (col == GET_COL_RECVD)
1466 return (B_TRUE);
1467 return (B_FALSE);
1468 }
1469
1470 /*
1471 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1472 * < all | property[,property]... > < fs | snap | vol > ...
1473 *
1474 * -r recurse over any child datasets
1475 * -H scripted mode. Headers are stripped, and fields are separated
1476 * by tabs instead of spaces.
1477 * -o Set of fields to display. One of "name,property,value,
1478 * received,source". Default is "name,property,value,source".
1479 * "all" is an alias for all five.
1480 * -s Set of sources to allow. One of
1481 * "local,default,inherited,received,temporary,none". Default is
1482 * all six.
1483 * -p Display values in parsable (literal) format.
1484 *
1485 * Prints properties for the given datasets. The user can control which
1486 * columns to display as well as which property types to allow.
1487 */
1488
1489 /*
1490 * Invoked to display the properties for a single dataset.
1491 */
1492 static int
1493 get_callback(zfs_handle_t *zhp, void *data)
1494 {
1495 char buf[ZFS_MAXPROPLEN];
1496 char rbuf[ZFS_MAXPROPLEN];
1497 zprop_source_t sourcetype;
1498 char source[ZFS_MAX_DATASET_NAME_LEN];
1499 zprop_get_cbdata_t *cbp = data;
1500 nvlist_t *user_props = zfs_get_user_props(zhp);
1501 zprop_list_t *pl = cbp->cb_proplist;
1502 nvlist_t *propval;
1503 char *strval;
1504 char *sourceval;
1505 boolean_t received = is_recvd_column(cbp);
1506
1507 for (; pl != NULL; pl = pl->pl_next) {
1508 char *recvdval = NULL;
1509 /*
1510 * Skip the special fake placeholder. This will also skip over
1511 * the name property when 'all' is specified.
1512 */
1513 if (pl->pl_prop == ZFS_PROP_NAME &&
1514 pl == cbp->cb_proplist)
1515 continue;
1516
1517 if (pl->pl_prop != ZPROP_INVAL) {
1518 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1519 sizeof (buf), &sourcetype, source,
1520 sizeof (source),
1521 cbp->cb_literal) != 0) {
1522 if (pl->pl_all)
1523 continue;
1524 if (!zfs_prop_valid_for_type(pl->pl_prop,
1525 ZFS_TYPE_DATASET, B_FALSE)) {
1526 (void) fprintf(stderr,
1527 gettext("No such property '%s'\n"),
1528 zfs_prop_to_name(pl->pl_prop));
1529 continue;
1530 }
1531 sourcetype = ZPROP_SRC_NONE;
1532 (void) strlcpy(buf, "-", sizeof (buf));
1533 }
1534
1535 if (received && (zfs_prop_get_recvd(zhp,
1536 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1537 cbp->cb_literal) == 0))
1538 recvdval = rbuf;
1539
1540 zprop_print_one_property(zfs_get_name(zhp), cbp,
1541 zfs_prop_to_name(pl->pl_prop),
1542 buf, sourcetype, source, recvdval);
1543 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1544 sourcetype = ZPROP_SRC_LOCAL;
1545
1546 if (zfs_prop_get_userquota(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 if (zfs_prop_written(pl->pl_user_prop)) {
1555 sourcetype = ZPROP_SRC_LOCAL;
1556
1557 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1558 buf, sizeof (buf), cbp->cb_literal) != 0) {
1559 sourcetype = ZPROP_SRC_NONE;
1560 (void) strlcpy(buf, "-", sizeof (buf));
1561 }
1562
1563 zprop_print_one_property(zfs_get_name(zhp), cbp,
1564 pl->pl_user_prop, buf, sourcetype, source, NULL);
1565 } else {
1566 if (nvlist_lookup_nvlist(user_props,
1567 pl->pl_user_prop, &propval) != 0) {
1568 if (pl->pl_all)
1569 continue;
1570 sourcetype = ZPROP_SRC_NONE;
1571 strval = "-";
1572 } else {
1573 verify(nvlist_lookup_string(propval,
1574 ZPROP_VALUE, &strval) == 0);
1575 verify(nvlist_lookup_string(propval,
1576 ZPROP_SOURCE, &sourceval) == 0);
1577
1578 if (strcmp(sourceval,
1579 zfs_get_name(zhp)) == 0) {
1580 sourcetype = ZPROP_SRC_LOCAL;
1581 } else if (strcmp(sourceval,
1582 ZPROP_SOURCE_VAL_RECVD) == 0) {
1583 sourcetype = ZPROP_SRC_RECEIVED;
1584 } else {
1585 sourcetype = ZPROP_SRC_INHERITED;
1586 (void) strlcpy(source,
1587 sourceval, sizeof (source));
1588 }
1589 }
1590
1591 if (received && (zfs_prop_get_recvd(zhp,
1592 pl->pl_user_prop, rbuf, sizeof (rbuf),
1593 cbp->cb_literal) == 0))
1594 recvdval = rbuf;
1595
1596 zprop_print_one_property(zfs_get_name(zhp), cbp,
1597 pl->pl_user_prop, strval, sourcetype,
1598 source, recvdval);
1599 }
1600 }
1601
1602 return (0);
1603 }
1604
1605 static int
1606 zfs_do_get(int argc, char **argv)
1607 {
1608 zprop_get_cbdata_t cb = { 0 };
1609 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1610 int types = ZFS_TYPE_DATASET;
1611 char *value, *fields;
1612 int ret = 0;
1613 int limit = 0;
1614 zprop_list_t fake_name = { 0 };
1615
1616 /*
1617 * Set up default columns and sources.
1618 */
1619 cb.cb_sources = ZPROP_SRC_ALL;
1620 cb.cb_columns[0] = GET_COL_NAME;
1621 cb.cb_columns[1] = GET_COL_PROPERTY;
1622 cb.cb_columns[2] = GET_COL_VALUE;
1623 cb.cb_columns[3] = GET_COL_SOURCE;
1624 cb.cb_type = ZFS_TYPE_DATASET;
1625
1626 /* check options */
1627 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1628 switch (c) {
1629 case 'p':
1630 cb.cb_literal = B_TRUE;
1631 break;
1632 case 'd':
1633 limit = parse_depth(optarg, &flags);
1634 break;
1635 case 'r':
1636 flags |= ZFS_ITER_RECURSE;
1637 break;
1638 case 'H':
1639 cb.cb_scripted = B_TRUE;
1640 break;
1641 case ':':
1642 (void) fprintf(stderr, gettext("missing argument for "
1643 "'%c' option\n"), optopt);
1644 usage(B_FALSE);
1645 break;
1646 case 'o':
1647 /*
1648 * Process the set of columns to display. We zero out
1649 * the structure to give us a blank slate.
1650 */
1651 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1652 i = 0;
1653 while (*optarg != '\0') {
1654 static char *col_subopts[] =
1655 { "name", "property", "value", "received",
1656 "source", "all", NULL };
1657
1658 if (i == ZFS_GET_NCOLS) {
1659 (void) fprintf(stderr, gettext("too "
1660 "many fields given to -o "
1661 "option\n"));
1662 usage(B_FALSE);
1663 }
1664
1665 switch (getsubopt(&optarg, col_subopts,
1666 &value)) {
1667 case 0:
1668 cb.cb_columns[i++] = GET_COL_NAME;
1669 break;
1670 case 1:
1671 cb.cb_columns[i++] = GET_COL_PROPERTY;
1672 break;
1673 case 2:
1674 cb.cb_columns[i++] = GET_COL_VALUE;
1675 break;
1676 case 3:
1677 cb.cb_columns[i++] = GET_COL_RECVD;
1678 flags |= ZFS_ITER_RECVD_PROPS;
1679 break;
1680 case 4:
1681 cb.cb_columns[i++] = GET_COL_SOURCE;
1682 break;
1683 case 5:
1684 if (i > 0) {
1685 (void) fprintf(stderr,
1686 gettext("\"all\" conflicts "
1687 "with specific fields "
1688 "given to -o option\n"));
1689 usage(B_FALSE);
1690 }
1691 cb.cb_columns[0] = GET_COL_NAME;
1692 cb.cb_columns[1] = GET_COL_PROPERTY;
1693 cb.cb_columns[2] = GET_COL_VALUE;
1694 cb.cb_columns[3] = GET_COL_RECVD;
1695 cb.cb_columns[4] = GET_COL_SOURCE;
1696 flags |= ZFS_ITER_RECVD_PROPS;
1697 i = ZFS_GET_NCOLS;
1698 break;
1699 default:
1700 (void) fprintf(stderr,
1701 gettext("invalid column name "
1702 "'%s'\n"), value);
1703 usage(B_FALSE);
1704 }
1705 }
1706 break;
1707
1708 case 's':
1709 cb.cb_sources = 0;
1710 while (*optarg != '\0') {
1711 static char *source_subopts[] = {
1712 "local", "default", "inherited",
1713 "received", "temporary", "none",
1714 NULL };
1715
1716 switch (getsubopt(&optarg, source_subopts,
1717 &value)) {
1718 case 0:
1719 cb.cb_sources |= ZPROP_SRC_LOCAL;
1720 break;
1721 case 1:
1722 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1723 break;
1724 case 2:
1725 cb.cb_sources |= ZPROP_SRC_INHERITED;
1726 break;
1727 case 3:
1728 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1729 break;
1730 case 4:
1731 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1732 break;
1733 case 5:
1734 cb.cb_sources |= ZPROP_SRC_NONE;
1735 break;
1736 default:
1737 (void) fprintf(stderr,
1738 gettext("invalid source "
1739 "'%s'\n"), value);
1740 usage(B_FALSE);
1741 }
1742 }
1743 break;
1744
1745 case 't':
1746 types = 0;
1747 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1748 while (*optarg != '\0') {
1749 static char *type_subopts[] = { "filesystem",
1750 "volume", "snapshot", "bookmark",
1751 "all", NULL };
1752
1753 switch (getsubopt(&optarg, type_subopts,
1754 &value)) {
1755 case 0:
1756 types |= ZFS_TYPE_FILESYSTEM;
1757 break;
1758 case 1:
1759 types |= ZFS_TYPE_VOLUME;
1760 break;
1761 case 2:
1762 types |= ZFS_TYPE_SNAPSHOT;
1763 break;
1764 case 3:
1765 types |= ZFS_TYPE_BOOKMARK;
1766 break;
1767 case 4:
1768 types = ZFS_TYPE_DATASET |
1769 ZFS_TYPE_BOOKMARK;
1770 break;
1771
1772 default:
1773 (void) fprintf(stderr,
1774 gettext("invalid type '%s'\n"),
1775 value);
1776 usage(B_FALSE);
1777 }
1778 }
1779 break;
1780
1781 case '?':
1782 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1783 optopt);
1784 usage(B_FALSE);
1785 }
1786 }
1787
1788 argc -= optind;
1789 argv += optind;
1790
1791 if (argc < 1) {
1792 (void) fprintf(stderr, gettext("missing property "
1793 "argument\n"));
1794 usage(B_FALSE);
1795 }
1796
1797 fields = argv[0];
1798
1799 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1800 != 0)
1801 usage(B_FALSE);
1802
1803 argc--;
1804 argv++;
1805
1806 /*
1807 * As part of zfs_expand_proplist(), we keep track of the maximum column
1808 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1809 * need to know the maximum name length. However, the user likely did
1810 * not specify 'name' as one of the properties to fetch, so we need to
1811 * make sure we always include at least this property for
1812 * print_get_headers() to work properly.
1813 */
1814 if (cb.cb_proplist != NULL) {
1815 fake_name.pl_prop = ZFS_PROP_NAME;
1816 fake_name.pl_width = strlen(gettext("NAME"));
1817 fake_name.pl_next = cb.cb_proplist;
1818 cb.cb_proplist = &fake_name;
1819 }
1820
1821 cb.cb_first = B_TRUE;
1822
1823 /* run for each object */
1824 ret = zfs_for_each(argc, argv, flags, types, NULL,
1825 &cb.cb_proplist, limit, get_callback, &cb);
1826
1827 if (cb.cb_proplist == &fake_name)
1828 zprop_free_list(fake_name.pl_next);
1829 else
1830 zprop_free_list(cb.cb_proplist);
1831
1832 return (ret);
1833 }
1834
1835 /*
1836 * inherit [-rS] <property> <fs|vol> ...
1837 *
1838 * -r Recurse over all children
1839 * -S Revert to received value, if any
1840 *
1841 * For each dataset specified on the command line, inherit the given property
1842 * from its parent. Inheriting a property at the pool level will cause it to
1843 * use the default value. The '-r' flag will recurse over all children, and is
1844 * useful for setting a property on a hierarchy-wide basis, regardless of any
1845 * local modifications for each dataset.
1846 */
1847
1848 typedef struct inherit_cbdata {
1849 const char *cb_propname;
1850 boolean_t cb_received;
1851 } inherit_cbdata_t;
1852
1853 static int
1854 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1855 {
1856 inherit_cbdata_t *cb = data;
1857 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1858
1859 /*
1860 * If we're doing it recursively, then ignore properties that
1861 * are not valid for this type of dataset.
1862 */
1863 if (prop != ZPROP_INVAL &&
1864 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE))
1865 return (0);
1866
1867 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1868 }
1869
1870 static int
1871 inherit_cb(zfs_handle_t *zhp, void *data)
1872 {
1873 inherit_cbdata_t *cb = data;
1874
1875 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1876 }
1877
1878 static int
1879 zfs_do_inherit(int argc, char **argv)
1880 {
1881 int c;
1882 zfs_prop_t prop;
1883 inherit_cbdata_t cb = { 0 };
1884 char *propname;
1885 int ret = 0;
1886 int flags = 0;
1887 boolean_t received = B_FALSE;
1888
1889 /* check options */
1890 while ((c = getopt(argc, argv, "rS")) != -1) {
1891 switch (c) {
1892 case 'r':
1893 flags |= ZFS_ITER_RECURSE;
1894 break;
1895 case 'S':
1896 received = B_TRUE;
1897 break;
1898 case '?':
1899 default:
1900 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1901 optopt);
1902 usage(B_FALSE);
1903 }
1904 }
1905
1906 argc -= optind;
1907 argv += optind;
1908
1909 /* check number of arguments */
1910 if (argc < 1) {
1911 (void) fprintf(stderr, gettext("missing property argument\n"));
1912 usage(B_FALSE);
1913 }
1914 if (argc < 2) {
1915 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1916 usage(B_FALSE);
1917 }
1918
1919 propname = argv[0];
1920 argc--;
1921 argv++;
1922
1923 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1924 if (zfs_prop_readonly(prop)) {
1925 (void) fprintf(stderr, gettext(
1926 "%s property is read-only\n"),
1927 propname);
1928 return (1);
1929 }
1930 if (!zfs_prop_inheritable(prop) && !received) {
1931 (void) fprintf(stderr, gettext("'%s' property cannot "
1932 "be inherited\n"), propname);
1933 if (prop == ZFS_PROP_QUOTA ||
1934 prop == ZFS_PROP_RESERVATION ||
1935 prop == ZFS_PROP_REFQUOTA ||
1936 prop == ZFS_PROP_REFRESERVATION) {
1937 (void) fprintf(stderr, gettext("use 'zfs set "
1938 "%s=none' to clear\n"), propname);
1939 (void) fprintf(stderr, gettext("use 'zfs "
1940 "inherit -S %s' to revert to received "
1941 "value\n"), propname);
1942 }
1943 return (1);
1944 }
1945 if (received && (prop == ZFS_PROP_VOLSIZE ||
1946 prop == ZFS_PROP_VERSION)) {
1947 (void) fprintf(stderr, gettext("'%s' property cannot "
1948 "be reverted to a received value\n"), propname);
1949 return (1);
1950 }
1951 } else if (!zfs_prop_user(propname)) {
1952 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1953 propname);
1954 usage(B_FALSE);
1955 }
1956
1957 cb.cb_propname = propname;
1958 cb.cb_received = received;
1959
1960 if (flags & ZFS_ITER_RECURSE) {
1961 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1962 NULL, NULL, 0, inherit_recurse_cb, &cb);
1963 } else {
1964 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1965 NULL, NULL, 0, inherit_cb, &cb);
1966 }
1967
1968 return (ret);
1969 }
1970
1971 typedef struct upgrade_cbdata {
1972 uint64_t cb_numupgraded;
1973 uint64_t cb_numsamegraded;
1974 uint64_t cb_numfailed;
1975 uint64_t cb_version;
1976 boolean_t cb_newer;
1977 boolean_t cb_foundone;
1978 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
1979 } upgrade_cbdata_t;
1980
1981 static int
1982 same_pool(zfs_handle_t *zhp, const char *name)
1983 {
1984 int len1 = strcspn(name, "/@");
1985 const char *zhname = zfs_get_name(zhp);
1986 int len2 = strcspn(zhname, "/@");
1987
1988 if (len1 != len2)
1989 return (B_FALSE);
1990 return (strncmp(name, zhname, len1) == 0);
1991 }
1992
1993 static int
1994 upgrade_list_callback(zfs_handle_t *zhp, void *data)
1995 {
1996 upgrade_cbdata_t *cb = data;
1997 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1998
1999 /* list if it's old/new */
2000 if ((!cb->cb_newer && version < ZPL_VERSION) ||
2001 (cb->cb_newer && version > ZPL_VERSION)) {
2002 char *str;
2003 if (cb->cb_newer) {
2004 str = gettext("The following filesystems are "
2005 "formatted using a newer software version and\n"
2006 "cannot be accessed on the current system.\n\n");
2007 } else {
2008 str = gettext("The following filesystems are "
2009 "out of date, and can be upgraded. After being\n"
2010 "upgraded, these filesystems (and any 'zfs send' "
2011 "streams generated from\n"
2012 "subsequent snapshots) will no longer be "
2013 "accessible by older software versions.\n\n");
2014 }
2015
2016 if (!cb->cb_foundone) {
2017 (void) puts(str);
2018 (void) printf(gettext("VER FILESYSTEM\n"));
2019 (void) printf(gettext("--- ------------\n"));
2020 cb->cb_foundone = B_TRUE;
2021 }
2022
2023 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
2024 }
2025
2026 return (0);
2027 }
2028
2029 static int
2030 upgrade_set_callback(zfs_handle_t *zhp, void *data)
2031 {
2032 upgrade_cbdata_t *cb = data;
2033 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2034 int needed_spa_version;
2035 int spa_version;
2036
2037 if (zfs_spa_version(zhp, &spa_version) < 0)
2038 return (-1);
2039
2040 needed_spa_version = zfs_spa_version_map(cb->cb_version);
2041
2042 if (needed_spa_version < 0)
2043 return (-1);
2044
2045 if (spa_version < needed_spa_version) {
2046 /* can't upgrade */
2047 (void) printf(gettext("%s: can not be "
2048 "upgraded; the pool version needs to first "
2049 "be upgraded\nto version %d\n\n"),
2050 zfs_get_name(zhp), needed_spa_version);
2051 cb->cb_numfailed++;
2052 return (0);
2053 }
2054
2055 /* upgrade */
2056 if (version < cb->cb_version) {
2057 char verstr[16];
2058 (void) snprintf(verstr, sizeof (verstr),
2059 "%llu", (u_longlong_t)cb->cb_version);
2060 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
2061 /*
2062 * If they did "zfs upgrade -a", then we could
2063 * be doing ioctls to different pools. We need
2064 * to log this history once to each pool, and bypass
2065 * the normal history logging that happens in main().
2066 */
2067 (void) zpool_log_history(g_zfs, history_str);
2068 log_history = B_FALSE;
2069 }
2070 if (zfs_prop_set(zhp, "version", verstr) == 0)
2071 cb->cb_numupgraded++;
2072 else
2073 cb->cb_numfailed++;
2074 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
2075 } else if (version > cb->cb_version) {
2076 /* can't downgrade */
2077 (void) printf(gettext("%s: can not be downgraded; "
2078 "it is already at version %u\n"),
2079 zfs_get_name(zhp), version);
2080 cb->cb_numfailed++;
2081 } else {
2082 cb->cb_numsamegraded++;
2083 }
2084 return (0);
2085 }
2086
2087 /*
2088 * zfs upgrade
2089 * zfs upgrade -v
2090 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
2091 */
2092 static int
2093 zfs_do_upgrade(int argc, char **argv)
2094 {
2095 boolean_t all = B_FALSE;
2096 boolean_t showversions = B_FALSE;
2097 int ret = 0;
2098 upgrade_cbdata_t cb = { 0 };
2099 signed char c;
2100 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
2101
2102 /* check options */
2103 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
2104 switch (c) {
2105 case 'r':
2106 flags |= ZFS_ITER_RECURSE;
2107 break;
2108 case 'v':
2109 showversions = B_TRUE;
2110 break;
2111 case 'V':
2112 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2113 optarg, &cb.cb_version) != 0) {
2114 (void) fprintf(stderr,
2115 gettext("invalid version %s\n"), optarg);
2116 usage(B_FALSE);
2117 }
2118 break;
2119 case 'a':
2120 all = B_TRUE;
2121 break;
2122 case '?':
2123 default:
2124 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2125 optopt);
2126 usage(B_FALSE);
2127 }
2128 }
2129
2130 argc -= optind;
2131 argv += optind;
2132
2133 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2134 usage(B_FALSE);
2135 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2136 cb.cb_version || argc))
2137 usage(B_FALSE);
2138 if ((all || argc) && (showversions))
2139 usage(B_FALSE);
2140 if (all && argc)
2141 usage(B_FALSE);
2142
2143 if (showversions) {
2144 /* Show info on available versions. */
2145 (void) printf(gettext("The following filesystem versions are "
2146 "supported:\n\n"));
2147 (void) printf(gettext("VER DESCRIPTION\n"));
2148 (void) printf("--- -----------------------------------------"
2149 "---------------\n");
2150 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2151 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2152 (void) printf(gettext(" 3 Case insensitive and filesystem "
2153 "user identifier (FUID)\n"));
2154 (void) printf(gettext(" 4 userquota, groupquota "
2155 "properties\n"));
2156 (void) printf(gettext(" 5 System attributes\n"));
2157 (void) printf(gettext("\nFor more information on a particular "
2158 "version, including supported releases,\n"));
2159 (void) printf("see the ZFS Administration Guide.\n\n");
2160 ret = 0;
2161 } else if (argc || all) {
2162 /* Upgrade filesystems */
2163 if (cb.cb_version == 0)
2164 cb.cb_version = ZPL_VERSION;
2165 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2166 NULL, NULL, 0, upgrade_set_callback, &cb);
2167 (void) printf(gettext("%llu filesystems upgraded\n"),
2168 (u_longlong_t)cb.cb_numupgraded);
2169 if (cb.cb_numsamegraded) {
2170 (void) printf(gettext("%llu filesystems already at "
2171 "this version\n"),
2172 (u_longlong_t)cb.cb_numsamegraded);
2173 }
2174 if (cb.cb_numfailed != 0)
2175 ret = 1;
2176 } else {
2177 /* List old-version filesytems */
2178 boolean_t found;
2179 (void) printf(gettext("This system is currently running "
2180 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2181
2182 flags |= ZFS_ITER_RECURSE;
2183 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2184 NULL, NULL, 0, upgrade_list_callback, &cb);
2185
2186 found = cb.cb_foundone;
2187 cb.cb_foundone = B_FALSE;
2188 cb.cb_newer = B_TRUE;
2189
2190 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2191 NULL, NULL, 0, upgrade_list_callback, &cb);
2192
2193 if (!cb.cb_foundone && !found) {
2194 (void) printf(gettext("All filesystems are "
2195 "formatted with the current version.\n"));
2196 }
2197 }
2198
2199 return (ret);
2200 }
2201
2202 /*
2203 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2204 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2205 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2206 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2207 *
2208 * -H Scripted mode; elide headers and separate columns by tabs.
2209 * -i Translate SID to POSIX ID.
2210 * -n Print numeric ID instead of user/group name.
2211 * -o Control which fields to display.
2212 * -p Use exact (parsable) numeric output.
2213 * -s Specify sort columns, descending order.
2214 * -S Specify sort columns, ascending order.
2215 * -t Control which object types to display.
2216 *
2217 * Displays space consumed by, and quotas on, each user in the specified
2218 * filesystem or snapshot.
2219 */
2220
2221 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2222 enum us_field_types {
2223 USFIELD_TYPE,
2224 USFIELD_NAME,
2225 USFIELD_USED,
2226 USFIELD_QUOTA
2227 };
2228 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2229 static char *us_field_names[] = { "type", "name", "used", "quota" };
2230 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2231
2232 #define USTYPE_PSX_GRP (1 << 0)
2233 #define USTYPE_PSX_USR (1 << 1)
2234 #define USTYPE_SMB_GRP (1 << 2)
2235 #define USTYPE_SMB_USR (1 << 3)
2236 #define USTYPE_ALL \
2237 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2238
2239 static int us_type_bits[] = {
2240 USTYPE_PSX_GRP,
2241 USTYPE_PSX_USR,
2242 USTYPE_SMB_GRP,
2243 USTYPE_SMB_USR,
2244 USTYPE_ALL
2245 };
2246 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2247 "smbuser", "all" };
2248
2249 typedef struct us_node {
2250 nvlist_t *usn_nvl;
2251 uu_avl_node_t usn_avlnode;
2252 uu_list_node_t usn_listnode;
2253 } us_node_t;
2254
2255 typedef struct us_cbdata {
2256 nvlist_t **cb_nvlp;
2257 uu_avl_pool_t *cb_avl_pool;
2258 uu_avl_t *cb_avl;
2259 boolean_t cb_numname;
2260 boolean_t cb_nicenum;
2261 boolean_t cb_sid2posix;
2262 zfs_userquota_prop_t cb_prop;
2263 zfs_sort_column_t *cb_sortcol;
2264 size_t cb_width[USFIELD_LAST];
2265 } us_cbdata_t;
2266
2267 static boolean_t us_populated = B_FALSE;
2268
2269 typedef struct {
2270 zfs_sort_column_t *si_sortcol;
2271 boolean_t si_numname;
2272 } us_sort_info_t;
2273
2274 static int
2275 us_field_index(char *field)
2276 {
2277 int i;
2278
2279 for (i = 0; i < USFIELD_LAST; i++) {
2280 if (strcmp(field, us_field_names[i]) == 0)
2281 return (i);
2282 }
2283
2284 return (-1);
2285 }
2286
2287 static int
2288 us_compare(const void *larg, const void *rarg, void *unused)
2289 {
2290 const us_node_t *l = larg;
2291 const us_node_t *r = rarg;
2292 us_sort_info_t *si = (us_sort_info_t *)unused;
2293 zfs_sort_column_t *sortcol = si->si_sortcol;
2294 boolean_t numname = si->si_numname;
2295 nvlist_t *lnvl = l->usn_nvl;
2296 nvlist_t *rnvl = r->usn_nvl;
2297 int rc = 0;
2298 boolean_t lvb, rvb;
2299
2300 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2301 char *lvstr = "";
2302 char *rvstr = "";
2303 uint32_t lv32 = 0;
2304 uint32_t rv32 = 0;
2305 uint64_t lv64 = 0;
2306 uint64_t rv64 = 0;
2307 zfs_prop_t prop = sortcol->sc_prop;
2308 const char *propname = NULL;
2309 boolean_t reverse = sortcol->sc_reverse;
2310
2311 switch (prop) {
2312 case ZFS_PROP_TYPE:
2313 propname = "type";
2314 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2315 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2316 if (rv32 != lv32)
2317 rc = (rv32 < lv32) ? 1 : -1;
2318 break;
2319 case ZFS_PROP_NAME:
2320 propname = "name";
2321 if (numname) {
2322 compare_nums:
2323 (void) nvlist_lookup_uint64(lnvl, propname,
2324 &lv64);
2325 (void) nvlist_lookup_uint64(rnvl, propname,
2326 &rv64);
2327 if (rv64 != lv64)
2328 rc = (rv64 < lv64) ? 1 : -1;
2329 } else {
2330 if ((nvlist_lookup_string(lnvl, propname,
2331 &lvstr) == ENOENT) ||
2332 (nvlist_lookup_string(rnvl, propname,
2333 &rvstr) == ENOENT)) {
2334 goto compare_nums;
2335 }
2336 rc = strcmp(lvstr, rvstr);
2337 }
2338 break;
2339 case ZFS_PROP_USED:
2340 case ZFS_PROP_QUOTA:
2341 if (!us_populated)
2342 break;
2343 if (prop == ZFS_PROP_USED)
2344 propname = "used";
2345 else
2346 propname = "quota";
2347 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2348 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2349 if (rv64 != lv64)
2350 rc = (rv64 < lv64) ? 1 : -1;
2351 break;
2352 default:
2353 break;
2354 }
2355
2356 if (rc != 0) {
2357 if (rc < 0)
2358 return (reverse ? 1 : -1);
2359 else
2360 return (reverse ? -1 : 1);
2361 }
2362 }
2363
2364 /*
2365 * If entries still seem to be the same, check if they are of the same
2366 * type (smbentity is added only if we are doing SID to POSIX ID
2367 * translation where we can have duplicate type/name combinations).
2368 */
2369 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2370 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2371 lvb != rvb)
2372 return (lvb < rvb ? -1 : 1);
2373
2374 return (0);
2375 }
2376
2377 static inline const char *
2378 us_type2str(unsigned field_type)
2379 {
2380 switch (field_type) {
2381 case USTYPE_PSX_USR:
2382 return ("POSIX User");
2383 case USTYPE_PSX_GRP:
2384 return ("POSIX Group");
2385 case USTYPE_SMB_USR:
2386 return ("SMB User");
2387 case USTYPE_SMB_GRP:
2388 return ("SMB Group");
2389 default:
2390 return ("Undefined");
2391 }
2392 }
2393
2394 static int
2395 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2396 {
2397 us_cbdata_t *cb = (us_cbdata_t *)arg;
2398 zfs_userquota_prop_t prop = cb->cb_prop;
2399 char *name = NULL;
2400 char *propname;
2401 char sizebuf[32];
2402 us_node_t *node;
2403 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2404 uu_avl_t *avl = cb->cb_avl;
2405 uu_avl_index_t idx;
2406 nvlist_t *props;
2407 us_node_t *n;
2408 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2409 unsigned type = 0;
2410 const char *typestr;
2411 size_t namelen;
2412 size_t typelen;
2413 size_t sizelen;
2414 int typeidx, nameidx, sizeidx;
2415 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2416 boolean_t smbentity = B_FALSE;
2417
2418 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2419 nomem();
2420 node = safe_malloc(sizeof (us_node_t));
2421 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2422 node->usn_nvl = props;
2423
2424 if (domain != NULL && domain[0] != '\0') {
2425 #ifdef HAVE_IDMAP
2426 /* SMB */
2427 char sid[MAXNAMELEN + 32];
2428 uid_t id;
2429 uint64_t classes;
2430 int err;
2431 directory_error_t e;
2432
2433 smbentity = B_TRUE;
2434
2435 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2436
2437 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2438 type = USTYPE_SMB_GRP;
2439 err = sid_to_id(sid, B_FALSE, &id);
2440 } else {
2441 type = USTYPE_SMB_USR;
2442 err = sid_to_id(sid, B_TRUE, &id);
2443 }
2444
2445 if (err == 0) {
2446 rid = id;
2447 if (!cb->cb_sid2posix) {
2448 e = directory_name_from_sid(NULL, sid, &name,
2449 &classes);
2450 if (e != NULL)
2451 directory_error_free(e);
2452 if (name == NULL)
2453 name = sid;
2454 }
2455 }
2456 #else
2457 nvlist_free(props);
2458 free(node);
2459
2460 return (-1);
2461 #endif /* HAVE_IDMAP */
2462 }
2463
2464 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2465 /* POSIX or -i */
2466 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2467 type = USTYPE_PSX_GRP;
2468 if (!cb->cb_numname) {
2469 struct group *g;
2470
2471 if ((g = getgrgid(rid)) != NULL)
2472 name = g->gr_name;
2473 }
2474 } else {
2475 type = USTYPE_PSX_USR;
2476 if (!cb->cb_numname) {
2477 struct passwd *p;
2478
2479 if ((p = getpwuid(rid)) != NULL)
2480 name = p->pw_name;
2481 }
2482 }
2483 }
2484
2485 /*
2486 * Make sure that the type/name combination is unique when doing
2487 * SID to POSIX ID translation (hence changing the type from SMB to
2488 * POSIX).
2489 */
2490 if (cb->cb_sid2posix &&
2491 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2492 nomem();
2493
2494 /* Calculate/update width of TYPE field */
2495 typestr = us_type2str(type);
2496 typelen = strlen(gettext(typestr));
2497 typeidx = us_field_index("type");
2498 if (typelen > cb->cb_width[typeidx])
2499 cb->cb_width[typeidx] = typelen;
2500 if (nvlist_add_uint32(props, "type", type) != 0)
2501 nomem();
2502
2503 /* Calculate/update width of NAME field */
2504 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2505 if (nvlist_add_uint64(props, "name", rid) != 0)
2506 nomem();
2507 namelen = snprintf(NULL, 0, "%u", rid);
2508 } else {
2509 if (nvlist_add_string(props, "name", name) != 0)
2510 nomem();
2511 namelen = strlen(name);
2512 }
2513 nameidx = us_field_index("name");
2514 if (namelen > cb->cb_width[nameidx])
2515 cb->cb_width[nameidx] = namelen;
2516
2517 /*
2518 * Check if this type/name combination is in the list and update it;
2519 * otherwise add new node to the list.
2520 */
2521 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2522 uu_avl_insert(avl, node, idx);
2523 } else {
2524 nvlist_free(props);
2525 free(node);
2526 node = n;
2527 props = node->usn_nvl;
2528 }
2529
2530 /* Calculate/update width of USED/QUOTA fields */
2531 if (cb->cb_nicenum)
2532 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2533 else
2534 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
2535 (u_longlong_t)space);
2536 sizelen = strlen(sizebuf);
2537 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2538 propname = "used";
2539 if (!nvlist_exists(props, "quota"))
2540 (void) nvlist_add_uint64(props, "quota", 0);
2541 } else {
2542 propname = "quota";
2543 if (!nvlist_exists(props, "used"))
2544 (void) nvlist_add_uint64(props, "used", 0);
2545 }
2546 sizeidx = us_field_index(propname);
2547 if (sizelen > cb->cb_width[sizeidx])
2548 cb->cb_width[sizeidx] = sizelen;
2549
2550 if (nvlist_add_uint64(props, propname, space) != 0)
2551 nomem();
2552
2553 return (0);
2554 }
2555
2556 static void
2557 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2558 size_t *width, us_node_t *node)
2559 {
2560 nvlist_t *nvl = node->usn_nvl;
2561 char valstr[MAXNAMELEN];
2562 boolean_t first = B_TRUE;
2563 int cfield = 0;
2564 int field;
2565 uint32_t ustype;
2566
2567 /* Check type */
2568 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2569 if (!(ustype & types))
2570 return;
2571
2572 while ((field = fields[cfield]) != USFIELD_LAST) {
2573 nvpair_t *nvp = NULL;
2574 data_type_t type;
2575 uint32_t val32;
2576 uint64_t val64;
2577 char *strval = NULL;
2578
2579 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2580 if (strcmp(nvpair_name(nvp),
2581 us_field_names[field]) == 0)
2582 break;
2583 }
2584
2585 type = nvpair_type(nvp);
2586 switch (type) {
2587 case DATA_TYPE_UINT32:
2588 (void) nvpair_value_uint32(nvp, &val32);
2589 break;
2590 case DATA_TYPE_UINT64:
2591 (void) nvpair_value_uint64(nvp, &val64);
2592 break;
2593 case DATA_TYPE_STRING:
2594 (void) nvpair_value_string(nvp, &strval);
2595 break;
2596 default:
2597 (void) fprintf(stderr, "invalid data type\n");
2598 }
2599
2600 switch (field) {
2601 case USFIELD_TYPE:
2602 strval = (char *)us_type2str(val32);
2603 break;
2604 case USFIELD_NAME:
2605 if (type == DATA_TYPE_UINT64) {
2606 (void) sprintf(valstr, "%llu",
2607 (u_longlong_t) val64);
2608 strval = valstr;
2609 }
2610 break;
2611 case USFIELD_USED:
2612 case USFIELD_QUOTA:
2613 if (type == DATA_TYPE_UINT64) {
2614 if (parsable) {
2615 (void) sprintf(valstr, "%llu",
2616 (u_longlong_t) val64);
2617 } else {
2618 zfs_nicenum(val64, valstr,
2619 sizeof (valstr));
2620 }
2621 if (field == USFIELD_QUOTA &&
2622 strcmp(valstr, "0") == 0)
2623 strval = "none";
2624 else
2625 strval = valstr;
2626 }
2627 break;
2628 }
2629
2630 if (!first) {
2631 if (scripted)
2632 (void) printf("\t");
2633 else
2634 (void) printf(" ");
2635 }
2636 if (scripted)
2637 (void) printf("%s", strval);
2638 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2639 (void) printf("%-*s", (int) width[field], strval);
2640 else
2641 (void) printf("%*s", (int) width[field], strval);
2642
2643 first = B_FALSE;
2644 cfield++;
2645 }
2646
2647 (void) printf("\n");
2648 }
2649
2650 static void
2651 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2652 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2653 {
2654 us_node_t *node;
2655 const char *col;
2656 int cfield = 0;
2657 int field;
2658
2659 if (!scripted) {
2660 boolean_t first = B_TRUE;
2661
2662 while ((field = fields[cfield]) != USFIELD_LAST) {
2663 col = gettext(us_field_hdr[field]);
2664 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2665 (void) printf(first ? "%-*s" : " %-*s",
2666 (int) width[field], col);
2667 } else {
2668 (void) printf(first ? "%*s" : " %*s",
2669 (int) width[field], col);
2670 }
2671 first = B_FALSE;
2672 cfield++;
2673 }
2674 (void) printf("\n");
2675 }
2676
2677 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2678 print_us_node(scripted, parsable, fields, types, width, node);
2679 if (rmnode)
2680 nvlist_free(node->usn_nvl);
2681 }
2682 }
2683
2684 static int
2685 zfs_do_userspace(int argc, char **argv)
2686 {
2687 zfs_handle_t *zhp;
2688 zfs_userquota_prop_t p;
2689 uu_avl_pool_t *avl_pool;
2690 uu_avl_t *avl_tree;
2691 uu_avl_walk_t *walk;
2692 char *delim;
2693 char deffields[] = "type,name,used,quota";
2694 char *ofield = NULL;
2695 char *tfield = NULL;
2696 int cfield = 0;
2697 int fields[256];
2698 int i;
2699 boolean_t scripted = B_FALSE;
2700 boolean_t prtnum = B_FALSE;
2701 boolean_t parsable = B_FALSE;
2702 boolean_t sid2posix = B_FALSE;
2703 int ret = 0;
2704 int c;
2705 zfs_sort_column_t *sortcol = NULL;
2706 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2707 us_cbdata_t cb;
2708 us_node_t *node;
2709 us_node_t *rmnode;
2710 uu_list_pool_t *listpool;
2711 uu_list_t *list;
2712 uu_avl_index_t idx = 0;
2713 uu_list_index_t idx2 = 0;
2714
2715 if (argc < 2)
2716 usage(B_FALSE);
2717
2718 if (strcmp(argv[0], "groupspace") == 0)
2719 /* Toggle default group types */
2720 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2721
2722 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2723 switch (c) {
2724 case 'n':
2725 prtnum = B_TRUE;
2726 break;
2727 case 'H':
2728 scripted = B_TRUE;
2729 break;
2730 case 'p':
2731 parsable = B_TRUE;
2732 break;
2733 case 'o':
2734 ofield = optarg;
2735 break;
2736 case 's':
2737 case 'S':
2738 if (zfs_add_sort_column(&sortcol, optarg,
2739 c == 's' ? B_FALSE : B_TRUE) != 0) {
2740 (void) fprintf(stderr,
2741 gettext("invalid field '%s'\n"), optarg);
2742 usage(B_FALSE);
2743 }
2744 break;
2745 case 't':
2746 tfield = optarg;
2747 break;
2748 case 'i':
2749 sid2posix = B_TRUE;
2750 break;
2751 case ':':
2752 (void) fprintf(stderr, gettext("missing argument for "
2753 "'%c' option\n"), optopt);
2754 usage(B_FALSE);
2755 break;
2756 case '?':
2757 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2758 optopt);
2759 usage(B_FALSE);
2760 }
2761 }
2762
2763 argc -= optind;
2764 argv += optind;
2765
2766 if (argc < 1) {
2767 (void) fprintf(stderr, gettext("missing dataset name\n"));
2768 usage(B_FALSE);
2769 }
2770 if (argc > 1) {
2771 (void) fprintf(stderr, gettext("too many arguments\n"));
2772 usage(B_FALSE);
2773 }
2774
2775 /* Use default output fields if not specified using -o */
2776 if (ofield == NULL)
2777 ofield = deffields;
2778 do {
2779 if ((delim = strchr(ofield, ',')) != NULL)
2780 *delim = '\0';
2781 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2782 (void) fprintf(stderr, gettext("invalid type '%s' "
2783 "for -o option\n"), ofield);
2784 return (-1);
2785 }
2786 if (delim != NULL)
2787 ofield = delim + 1;
2788 } while (delim != NULL);
2789 fields[cfield] = USFIELD_LAST;
2790
2791 /* Override output types (-t option) */
2792 if (tfield != NULL) {
2793 types = 0;
2794
2795 do {
2796 boolean_t found = B_FALSE;
2797
2798 if ((delim = strchr(tfield, ',')) != NULL)
2799 *delim = '\0';
2800 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2801 i++) {
2802 if (strcmp(tfield, us_type_names[i]) == 0) {
2803 found = B_TRUE;
2804 types |= us_type_bits[i];
2805 break;
2806 }
2807 }
2808 if (!found) {
2809 (void) fprintf(stderr, gettext("invalid type "
2810 "'%s' for -t option\n"), tfield);
2811 return (-1);
2812 }
2813 if (delim != NULL)
2814 tfield = delim + 1;
2815 } while (delim != NULL);
2816 }
2817
2818 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2819 return (1);
2820
2821 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2822 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2823 nomem();
2824 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2825 nomem();
2826
2827 /* Always add default sorting columns */
2828 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2829 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2830
2831 cb.cb_sortcol = sortcol;
2832 cb.cb_numname = prtnum;
2833 cb.cb_nicenum = !parsable;
2834 cb.cb_avl_pool = avl_pool;
2835 cb.cb_avl = avl_tree;
2836 cb.cb_sid2posix = sid2posix;
2837
2838 for (i = 0; i < USFIELD_LAST; i++)
2839 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2840
2841 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2842 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) &&
2843 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2844 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) &&
2845 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2846 continue;
2847 cb.cb_prop = p;
2848 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2849 return (ret);
2850 }
2851
2852 /* Sort the list */
2853 if ((node = uu_avl_first(avl_tree)) == NULL)
2854 return (0);
2855
2856 us_populated = B_TRUE;
2857
2858 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2859 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2860 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2861 uu_list_node_init(node, &node->usn_listnode, listpool);
2862
2863 while (node != NULL) {
2864 rmnode = node;
2865 node = uu_avl_next(avl_tree, node);
2866 uu_avl_remove(avl_tree, rmnode);
2867 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2868 uu_list_insert(list, rmnode, idx2);
2869 }
2870
2871 for (node = uu_list_first(list); node != NULL;
2872 node = uu_list_next(list, node)) {
2873 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2874
2875 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2876 uu_avl_insert(avl_tree, node, idx);
2877 }
2878
2879 uu_list_destroy(list);
2880 uu_list_pool_destroy(listpool);
2881
2882 /* Print and free node nvlist memory */
2883 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2884 cb.cb_avl);
2885
2886 zfs_free_sort_columns(sortcol);
2887
2888 /* Clean up the AVL tree */
2889 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2890 nomem();
2891
2892 while ((node = uu_avl_walk_next(walk)) != NULL) {
2893 uu_avl_remove(cb.cb_avl, node);
2894 free(node);
2895 }
2896
2897 uu_avl_walk_end(walk);
2898 uu_avl_destroy(avl_tree);
2899 uu_avl_pool_destroy(avl_pool);
2900
2901 return (ret);
2902 }
2903
2904 /*
2905 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property]
2906 * [-t type[,...]] [filesystem|volume|snapshot] ...
2907 *
2908 * -H Scripted mode; elide headers and separate columns by tabs
2909 * -p Display values in parsable (literal) format.
2910 * -r Recurse over all children
2911 * -d Limit recursion by depth.
2912 * -o Control which fields to display.
2913 * -s Specify sort columns, descending order.
2914 * -S Specify sort columns, ascending order.
2915 * -t Control which object types to display.
2916 *
2917 * When given no arguments, list all filesystems in the system.
2918 * Otherwise, list the specified datasets, optionally recursing down them if
2919 * '-r' is specified.
2920 */
2921 typedef struct list_cbdata {
2922 boolean_t cb_first;
2923 boolean_t cb_literal;
2924 boolean_t cb_scripted;
2925 zprop_list_t *cb_proplist;
2926 } list_cbdata_t;
2927
2928 /*
2929 * Given a list of columns to display, output appropriate headers for each one.
2930 */
2931 static void
2932 print_header(list_cbdata_t *cb)
2933 {
2934 zprop_list_t *pl = cb->cb_proplist;
2935 char headerbuf[ZFS_MAXPROPLEN];
2936 const char *header;
2937 int i;
2938 boolean_t first = B_TRUE;
2939 boolean_t right_justify;
2940
2941 for (; pl != NULL; pl = pl->pl_next) {
2942 if (!first) {
2943 (void) printf(" ");
2944 } else {
2945 first = B_FALSE;
2946 }
2947
2948 right_justify = B_FALSE;
2949 if (pl->pl_prop != ZPROP_INVAL) {
2950 header = zfs_prop_column_name(pl->pl_prop);
2951 right_justify = zfs_prop_align_right(pl->pl_prop);
2952 } else {
2953 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2954 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2955 headerbuf[i] = '\0';
2956 header = headerbuf;
2957 }
2958
2959 if (pl->pl_next == NULL && !right_justify)
2960 (void) printf("%s", header);
2961 else if (right_justify)
2962 (void) printf("%*s", (int)pl->pl_width, header);
2963 else
2964 (void) printf("%-*s", (int)pl->pl_width, header);
2965 }
2966
2967 (void) printf("\n");
2968 }
2969
2970 /*
2971 * Given a dataset and a list of fields, print out all the properties according
2972 * to the described layout.
2973 */
2974 static void
2975 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
2976 {
2977 zprop_list_t *pl = cb->cb_proplist;
2978 boolean_t first = B_TRUE;
2979 char property[ZFS_MAXPROPLEN];
2980 nvlist_t *userprops = zfs_get_user_props(zhp);
2981 nvlist_t *propval;
2982 char *propstr;
2983 boolean_t right_justify;
2984
2985 for (; pl != NULL; pl = pl->pl_next) {
2986 if (!first) {
2987 if (cb->cb_scripted)
2988 (void) printf("\t");
2989 else
2990 (void) printf(" ");
2991 } else {
2992 first = B_FALSE;
2993 }
2994
2995 if (pl->pl_prop == ZFS_PROP_NAME) {
2996 (void) strlcpy(property, zfs_get_name(zhp),
2997 sizeof (property));
2998 propstr = property;
2999 right_justify = zfs_prop_align_right(pl->pl_prop);
3000 } else if (pl->pl_prop != ZPROP_INVAL) {
3001 if (zfs_prop_get(zhp, pl->pl_prop, property,
3002 sizeof (property), NULL, NULL, 0,
3003 cb->cb_literal) != 0)
3004 propstr = "-";
3005 else
3006 propstr = property;
3007 right_justify = zfs_prop_align_right(pl->pl_prop);
3008 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
3009 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
3010 property, sizeof (property), cb->cb_literal) != 0)
3011 propstr = "-";
3012 else
3013 propstr = property;
3014 right_justify = B_TRUE;
3015 } else if (zfs_prop_written(pl->pl_user_prop)) {
3016 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
3017 property, sizeof (property), cb->cb_literal) != 0)
3018 propstr = "-";
3019 else
3020 propstr = property;
3021 right_justify = B_TRUE;
3022 } else {
3023 if (nvlist_lookup_nvlist(userprops,
3024 pl->pl_user_prop, &propval) != 0)
3025 propstr = "-";
3026 else
3027 verify(nvlist_lookup_string(propval,
3028 ZPROP_VALUE, &propstr) == 0);
3029 right_justify = B_FALSE;
3030 }
3031
3032 /*
3033 * If this is being called in scripted mode, or if this is the
3034 * last column and it is left-justified, don't include a width
3035 * format specifier.
3036 */
3037 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3038 (void) printf("%s", propstr);
3039 else if (right_justify)
3040 (void) printf("%*s", (int)pl->pl_width, propstr);
3041 else
3042 (void) printf("%-*s", (int)pl->pl_width, propstr);
3043 }
3044
3045 (void) printf("\n");
3046 }
3047
3048 /*
3049 * Generic callback function to list a dataset or snapshot.
3050 */
3051 static int
3052 list_callback(zfs_handle_t *zhp, void *data)
3053 {
3054 list_cbdata_t *cbp = data;
3055
3056 if (cbp->cb_first) {
3057 if (!cbp->cb_scripted)
3058 print_header(cbp);
3059 cbp->cb_first = B_FALSE;
3060 }
3061
3062 print_dataset(zhp, cbp);
3063
3064 return (0);
3065 }
3066
3067 static int
3068 zfs_do_list(int argc, char **argv)
3069 {
3070 int c;
3071 static char default_fields[] =
3072 "name,used,available,referenced,mountpoint";
3073 int types = ZFS_TYPE_DATASET;
3074 boolean_t types_specified = B_FALSE;
3075 char *fields = NULL;
3076 list_cbdata_t cb = { 0 };
3077 char *value;
3078 int limit = 0;
3079 int ret = 0;
3080 zfs_sort_column_t *sortcol = NULL;
3081 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3082
3083 /* check options */
3084 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3085 switch (c) {
3086 case 'o':
3087 fields = optarg;
3088 break;
3089 case 'p':
3090 cb.cb_literal = B_TRUE;
3091 flags |= ZFS_ITER_LITERAL_PROPS;
3092 break;
3093 case 'd':
3094 limit = parse_depth(optarg, &flags);
3095 break;
3096 case 'r':
3097 flags |= ZFS_ITER_RECURSE;
3098 break;
3099 case 'H':
3100 cb.cb_scripted = B_TRUE;
3101 break;
3102 case 's':
3103 if (zfs_add_sort_column(&sortcol, optarg,
3104 B_FALSE) != 0) {
3105 (void) fprintf(stderr,
3106 gettext("invalid property '%s'\n"), optarg);
3107 usage(B_FALSE);
3108 }
3109 break;
3110 case 'S':
3111 if (zfs_add_sort_column(&sortcol, optarg,
3112 B_TRUE) != 0) {
3113 (void) fprintf(stderr,
3114 gettext("invalid property '%s'\n"), optarg);
3115 usage(B_FALSE);
3116 }
3117 break;
3118 case 't':
3119 types = 0;
3120 types_specified = B_TRUE;
3121 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3122 while (*optarg != '\0') {
3123 static char *type_subopts[] = { "filesystem",
3124 "volume", "snapshot", "snap", "bookmark",
3125 "all", NULL };
3126
3127 switch (getsubopt(&optarg, type_subopts,
3128 &value)) {
3129 case 0:
3130 types |= ZFS_TYPE_FILESYSTEM;
3131 break;
3132 case 1:
3133 types |= ZFS_TYPE_VOLUME;
3134 break;
3135 case 2:
3136 case 3:
3137 types |= ZFS_TYPE_SNAPSHOT;
3138 break;
3139 case 4:
3140 types |= ZFS_TYPE_BOOKMARK;
3141 break;
3142 case 5:
3143 types = ZFS_TYPE_DATASET |
3144 ZFS_TYPE_BOOKMARK;
3145 break;
3146 default:
3147 (void) fprintf(stderr,
3148 gettext("invalid type '%s'\n"),
3149 value);
3150 usage(B_FALSE);
3151 }
3152 }
3153 break;
3154 case ':':
3155 (void) fprintf(stderr, gettext("missing argument for "
3156 "'%c' option\n"), optopt);
3157 usage(B_FALSE);
3158 break;
3159 case '?':
3160 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3161 optopt);
3162 usage(B_FALSE);
3163 }
3164 }
3165
3166 argc -= optind;
3167 argv += optind;
3168
3169 if (fields == NULL)
3170 fields = default_fields;
3171
3172 /*
3173 * If we are only going to list snapshot names and sort by name,
3174 * then we can use faster version.
3175 */
3176 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3177 flags |= ZFS_ITER_SIMPLE;
3178
3179 /*
3180 * If "-o space" and no types were specified, don't display snapshots.
3181 */
3182 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3183 types &= ~ZFS_TYPE_SNAPSHOT;
3184
3185 /*
3186 * If the user specifies '-o all', the zprop_get_list() doesn't
3187 * normally include the name of the dataset. For 'zfs list', we always
3188 * want this property to be first.
3189 */
3190 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3191 != 0)
3192 usage(B_FALSE);
3193
3194 cb.cb_first = B_TRUE;
3195
3196 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3197 limit, list_callback, &cb);
3198
3199 zprop_free_list(cb.cb_proplist);
3200 zfs_free_sort_columns(sortcol);
3201
3202 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3203 (void) fprintf(stderr, gettext("no datasets available\n"));
3204
3205 return (ret);
3206 }
3207
3208 /*
3209 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3210 * zfs rename [-f] -p <fs | vol> <fs | vol>
3211 * zfs rename -r <snap> <snap>
3212 *
3213 * Renames the given dataset to another of the same type.
3214 *
3215 * The '-p' flag creates all the non-existing ancestors of the target first.
3216 */
3217 /* ARGSUSED */
3218 static int
3219 zfs_do_rename(int argc, char **argv)
3220 {
3221 zfs_handle_t *zhp;
3222 int c;
3223 int ret = 0;
3224 boolean_t recurse = B_FALSE;
3225 boolean_t parents = B_FALSE;
3226 boolean_t force_unmount = B_FALSE;
3227
3228 /* check options */
3229 while ((c = getopt(argc, argv, "prf")) != -1) {
3230 switch (c) {
3231 case 'p':
3232 parents = B_TRUE;
3233 break;
3234 case 'r':
3235 recurse = B_TRUE;
3236 break;
3237 case 'f':
3238 force_unmount = B_TRUE;
3239 break;
3240 case '?':
3241 default:
3242 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3243 optopt);
3244 usage(B_FALSE);
3245 }
3246 }
3247
3248 argc -= optind;
3249 argv += optind;
3250
3251 /* check number of arguments */
3252 if (argc < 1) {
3253 (void) fprintf(stderr, gettext("missing source dataset "
3254 "argument\n"));
3255 usage(B_FALSE);
3256 }
3257 if (argc < 2) {
3258 (void) fprintf(stderr, gettext("missing target dataset "
3259 "argument\n"));
3260 usage(B_FALSE);
3261 }
3262 if (argc > 2) {
3263 (void) fprintf(stderr, gettext("too many arguments\n"));
3264 usage(B_FALSE);
3265 }
3266
3267 if (recurse && parents) {
3268 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3269 "exclusive\n"));
3270 usage(B_FALSE);
3271 }
3272
3273 if (recurse && strchr(argv[0], '@') == 0) {
3274 (void) fprintf(stderr, gettext("source dataset for recursive "
3275 "rename must be a snapshot\n"));
3276 usage(B_FALSE);
3277 }
3278
3279 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3280 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3281 return (1);
3282
3283 /* If we were asked and the name looks good, try to create ancestors. */
3284 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3285 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3286 zfs_close(zhp);
3287 return (1);
3288 }
3289
3290 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3291
3292 zfs_close(zhp);
3293 return (ret);
3294 }
3295
3296 /*
3297 * zfs promote <fs>
3298 *
3299 * Promotes the given clone fs to be the parent
3300 */
3301 /* ARGSUSED */
3302 static int
3303 zfs_do_promote(int argc, char **argv)
3304 {
3305 zfs_handle_t *zhp;
3306 int ret = 0;
3307
3308 /* check options */
3309 if (argc > 1 && argv[1][0] == '-') {
3310 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3311 argv[1][1]);
3312 usage(B_FALSE);
3313 }
3314
3315 /* check number of arguments */
3316 if (argc < 2) {
3317 (void) fprintf(stderr, gettext("missing clone filesystem"
3318 " argument\n"));
3319 usage(B_FALSE);
3320 }
3321 if (argc > 2) {
3322 (void) fprintf(stderr, gettext("too many arguments\n"));
3323 usage(B_FALSE);
3324 }
3325
3326 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3327 if (zhp == NULL)
3328 return (1);
3329
3330 ret = (zfs_promote(zhp) != 0);
3331
3332
3333 zfs_close(zhp);
3334 return (ret);
3335 }
3336
3337 /*
3338 * zfs rollback [-rRf] <snapshot>
3339 *
3340 * -r Delete any intervening snapshots before doing rollback
3341 * -R Delete any snapshots and their clones
3342 * -f ignored for backwards compatability
3343 *
3344 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3345 * since then and making it the active dataset. If more recent snapshots exist,
3346 * the command will complain unless the '-r' flag is given.
3347 */
3348 typedef struct rollback_cbdata {
3349 uint64_t cb_create;
3350 boolean_t cb_first;
3351 int cb_doclones;
3352 char *cb_target;
3353 int cb_error;
3354 boolean_t cb_recurse;
3355 } rollback_cbdata_t;
3356
3357 static int
3358 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3359 {
3360 rollback_cbdata_t *cbp = data;
3361
3362 if (cbp->cb_first && cbp->cb_recurse) {
3363 (void) fprintf(stderr, gettext("cannot rollback to "
3364 "'%s': clones of previous snapshots exist\n"),
3365 cbp->cb_target);
3366 (void) fprintf(stderr, gettext("use '-R' to "
3367 "force deletion of the following clones and "
3368 "dependents:\n"));
3369 cbp->cb_first = 0;
3370 cbp->cb_error = 1;
3371 }
3372
3373 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3374
3375 zfs_close(zhp);
3376 return (0);
3377 }
3378
3379
3380 /*
3381 * Report any snapshots more recent than the one specified. Used when '-r' is
3382 * not specified. We reuse this same callback for the snapshot dependents - if
3383 * 'cb_dependent' is set, then this is a dependent and we should report it
3384 * without checking the transaction group.
3385 */
3386 static int
3387 rollback_check(zfs_handle_t *zhp, void *data)
3388 {
3389 rollback_cbdata_t *cbp = data;
3390
3391 if (cbp->cb_doclones) {
3392 zfs_close(zhp);
3393 return (0);
3394 }
3395
3396 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3397 if (cbp->cb_first && !cbp->cb_recurse) {
3398 (void) fprintf(stderr, gettext("cannot "
3399 "rollback to '%s': more recent snapshots "
3400 "or bookmarks exist\n"),
3401 cbp->cb_target);
3402 (void) fprintf(stderr, gettext("use '-r' to "
3403 "force deletion of the following "
3404 "snapshots and bookmarks:\n"));
3405 cbp->cb_first = 0;
3406 cbp->cb_error = 1;
3407 }
3408
3409 if (cbp->cb_recurse) {
3410 if (zfs_iter_dependents(zhp, B_TRUE,
3411 rollback_check_dependent, cbp) != 0) {
3412 zfs_close(zhp);
3413 return (-1);
3414 }
3415 } else {
3416 (void) fprintf(stderr, "%s\n",
3417 zfs_get_name(zhp));
3418 }
3419 }
3420 zfs_close(zhp);
3421 return (0);
3422 }
3423
3424 static int
3425 zfs_do_rollback(int argc, char **argv)
3426 {
3427 int ret = 0;
3428 int c;
3429 boolean_t force = B_FALSE;
3430 rollback_cbdata_t cb = { 0 };
3431 zfs_handle_t *zhp, *snap;
3432 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3433 char *delim;
3434
3435 /* check options */
3436 while ((c = getopt(argc, argv, "rRf")) != -1) {
3437 switch (c) {
3438 case 'r':
3439 cb.cb_recurse = 1;
3440 break;
3441 case 'R':
3442 cb.cb_recurse = 1;
3443 cb.cb_doclones = 1;
3444 break;
3445 case 'f':
3446 force = B_TRUE;
3447 break;
3448 case '?':
3449 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3450 optopt);
3451 usage(B_FALSE);
3452 }
3453 }
3454
3455 argc -= optind;
3456 argv += optind;
3457
3458 /* check number of arguments */
3459 if (argc < 1) {
3460 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3461 usage(B_FALSE);
3462 }
3463 if (argc > 1) {
3464 (void) fprintf(stderr, gettext("too many arguments\n"));
3465 usage(B_FALSE);
3466 }
3467
3468 /* open the snapshot */
3469 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3470 return (1);
3471
3472 /* open the parent dataset */
3473 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3474 verify((delim = strrchr(parentname, '@')) != NULL);
3475 *delim = '\0';
3476 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3477 zfs_close(snap);
3478 return (1);
3479 }
3480
3481 /*
3482 * Check for more recent snapshots and/or clones based on the presence
3483 * of '-r' and '-R'.
3484 */
3485 cb.cb_target = argv[0];
3486 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3487 cb.cb_first = B_TRUE;
3488 cb.cb_error = 0;
3489 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3490 goto out;
3491 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3492 goto out;
3493
3494 if ((ret = cb.cb_error) != 0)
3495 goto out;
3496
3497 /*
3498 * Rollback parent to the given snapshot.
3499 */
3500 ret = zfs_rollback(zhp, snap, force);
3501
3502 out:
3503 zfs_close(snap);
3504 zfs_close(zhp);
3505
3506 if (ret == 0)
3507 return (0);
3508 else
3509 return (1);
3510 }
3511
3512 /*
3513 * zfs set property=value ... { fs | snap | vol } ...
3514 *
3515 * Sets the given properties for all datasets specified on the command line.
3516 */
3517
3518 static int
3519 set_callback(zfs_handle_t *zhp, void *data)
3520 {
3521 nvlist_t *props = data;
3522
3523 if (zfs_prop_set_list(zhp, props) != 0) {
3524 switch (libzfs_errno(g_zfs)) {
3525 case EZFS_MOUNTFAILED:
3526 (void) fprintf(stderr, gettext("property may be set "
3527 "but unable to remount filesystem\n"));
3528 break;
3529 case EZFS_SHARENFSFAILED:
3530 (void) fprintf(stderr, gettext("property may be set "
3531 "but unable to reshare filesystem\n"));
3532 break;
3533 }
3534 return (1);
3535 }
3536 return (0);
3537 }
3538
3539 static int
3540 zfs_do_set(int argc, char **argv)
3541 {
3542 nvlist_t *props = NULL;
3543 int ds_start = -1; /* argv idx of first dataset arg */
3544 int ret = 0;
3545 int i;
3546
3547 /* check for options */
3548 if (argc > 1 && argv[1][0] == '-') {
3549 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3550 argv[1][1]);
3551 usage(B_FALSE);
3552 }
3553
3554 /* check number of arguments */
3555 if (argc < 2) {
3556 (void) fprintf(stderr, gettext("missing arguments\n"));
3557 usage(B_FALSE);
3558 }
3559 if (argc < 3) {
3560 if (strchr(argv[1], '=') == NULL) {
3561 (void) fprintf(stderr, gettext("missing property=value "
3562 "argument(s)\n"));
3563 } else {
3564 (void) fprintf(stderr, gettext("missing dataset "
3565 "name(s)\n"));
3566 }
3567 usage(B_FALSE);
3568 }
3569
3570 /* validate argument order: prop=val args followed by dataset args */
3571 for (i = 1; i < argc; i++) {
3572 if (strchr(argv[i], '=') != NULL) {
3573 if (ds_start > 0) {
3574 /* out-of-order prop=val argument */
3575 (void) fprintf(stderr, gettext("invalid "
3576 "argument order\n"));
3577 usage(B_FALSE);
3578 }
3579 } else if (ds_start < 0) {
3580 ds_start = i;
3581 }
3582 }
3583 if (ds_start < 0) {
3584 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3585 usage(B_FALSE);
3586 }
3587
3588 /* Populate a list of property settings */
3589 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3590 nomem();
3591 for (i = 1; i < ds_start; i++) {
3592 if ((ret = parseprop(props, argv[i])) != 0)
3593 goto error;
3594 }
3595
3596 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3597 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3598
3599 error:
3600 nvlist_free(props);
3601 return (ret);
3602 }
3603
3604 typedef struct snap_cbdata {
3605 nvlist_t *sd_nvl;
3606 boolean_t sd_recursive;
3607 const char *sd_snapname;
3608 } snap_cbdata_t;
3609
3610 static int
3611 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3612 {
3613 snap_cbdata_t *sd = arg;
3614 char *name;
3615 int rv = 0;
3616 int error;
3617
3618 if (sd->sd_recursive &&
3619 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3620 zfs_close(zhp);
3621 return (0);
3622 }
3623
3624 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3625 if (error == -1)
3626 nomem();
3627 fnvlist_add_boolean(sd->sd_nvl, name);
3628 free(name);
3629
3630 if (sd->sd_recursive)
3631 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3632 zfs_close(zhp);
3633 return (rv);
3634 }
3635
3636 /*
3637 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3638 *
3639 * Creates a snapshot with the given name. While functionally equivalent to
3640 * 'zfs create', it is a separate command to differentiate intent.
3641 */
3642 static int
3643 zfs_do_snapshot(int argc, char **argv)
3644 {
3645 int ret = 0;
3646 signed char c;
3647 nvlist_t *props;
3648 snap_cbdata_t sd = { 0 };
3649 boolean_t multiple_snaps = B_FALSE;
3650
3651 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3652 nomem();
3653 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3654 nomem();
3655
3656 /* check options */
3657 while ((c = getopt(argc, argv, "ro:")) != -1) {
3658 switch (c) {
3659 case 'o':
3660 if (parseprop(props, optarg) != 0) {
3661 nvlist_free(sd.sd_nvl);
3662 nvlist_free(props);
3663 return (1);
3664 }
3665 break;
3666 case 'r':
3667 sd.sd_recursive = B_TRUE;
3668 multiple_snaps = B_TRUE;
3669 break;
3670 case '?':
3671 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3672 optopt);
3673 goto usage;
3674 }
3675 }
3676
3677 argc -= optind;
3678 argv += optind;
3679
3680 /* check number of arguments */
3681 if (argc < 1) {
3682 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3683 goto usage;
3684 }
3685
3686 if (argc > 1)
3687 multiple_snaps = B_TRUE;
3688 for (; argc > 0; argc--, argv++) {
3689 char *atp;
3690 zfs_handle_t *zhp;
3691
3692 atp = strchr(argv[0], '@');
3693 if (atp == NULL)
3694 goto usage;
3695 *atp = '\0';
3696 sd.sd_snapname = atp + 1;
3697 zhp = zfs_open(g_zfs, argv[0],
3698 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3699 if (zhp == NULL)
3700 goto usage;
3701 if (zfs_snapshot_cb(zhp, &sd) != 0)
3702 goto usage;
3703 }
3704
3705 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3706 nvlist_free(sd.sd_nvl);
3707 nvlist_free(props);
3708 if (ret != 0 && multiple_snaps)
3709 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3710 return (ret != 0);
3711
3712 usage:
3713 nvlist_free(sd.sd_nvl);
3714 nvlist_free(props);
3715 usage(B_FALSE);
3716 return (-1);
3717 }
3718
3719 /*
3720 * Send a backup stream to stdout.
3721 */
3722 static int
3723 zfs_do_send(int argc, char **argv)
3724 {
3725 char *fromname = NULL;
3726 char *toname = NULL;
3727 char *resume_token = NULL;
3728 char *cp;
3729 zfs_handle_t *zhp;
3730 sendflags_t flags = { 0 };
3731 int c, err;
3732 nvlist_t *dbgnv = NULL;
3733 boolean_t extraverbose = B_FALSE;
3734
3735 /* check options */
3736 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:c")) != -1) {
3737 switch (c) {
3738 case 'i':
3739 if (fromname)
3740 usage(B_FALSE);
3741 fromname = optarg;
3742 break;
3743 case 'I':
3744 if (fromname)
3745 usage(B_FALSE);
3746 fromname = optarg;
3747 flags.doall = B_TRUE;
3748 break;
3749 case 'R':
3750 flags.replicate = B_TRUE;
3751 break;
3752 case 'p':
3753 flags.props = B_TRUE;
3754 break;
3755 case 'P':
3756 flags.parsable = B_TRUE;
3757 flags.verbose = B_TRUE;
3758 break;
3759 case 'v':
3760 if (flags.verbose)
3761 extraverbose = B_TRUE;
3762 flags.verbose = B_TRUE;
3763 flags.progress = B_TRUE;
3764 break;
3765 case 'D':
3766 flags.dedup = B_TRUE;
3767 break;
3768 case 'n':
3769 flags.dryrun = B_TRUE;
3770 break;
3771 case 'L':
3772 flags.largeblock = B_TRUE;
3773 break;
3774 case 'e':
3775 flags.embed_data = B_TRUE;
3776 break;
3777 case 't':
3778 resume_token = optarg;
3779 break;
3780 case 'c':
3781 flags.compress = B_TRUE;
3782 break;
3783 case ':':
3784 (void) fprintf(stderr, gettext("missing argument for "
3785 "'%c' option\n"), optopt);
3786 usage(B_FALSE);
3787 break;
3788 case '?':
3789 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3790 optopt);
3791 usage(B_FALSE);
3792 }
3793 }
3794
3795 argc -= optind;
3796 argv += optind;
3797
3798 if (resume_token != NULL) {
3799 if (fromname != NULL || flags.replicate || flags.props ||
3800 flags.dedup) {
3801 (void) fprintf(stderr,
3802 gettext("invalid flags combined with -t\n"));
3803 usage(B_FALSE);
3804 }
3805 if (argc != 0) {
3806 (void) fprintf(stderr, gettext("no additional "
3807 "arguments are permitted with -t\n"));
3808 usage(B_FALSE);
3809 }
3810 } else {
3811 if (argc < 1) {
3812 (void) fprintf(stderr,
3813 gettext("missing snapshot argument\n"));
3814 usage(B_FALSE);
3815 }
3816 if (argc > 1) {
3817 (void) fprintf(stderr, gettext("too many arguments\n"));
3818 usage(B_FALSE);
3819 }
3820 }
3821
3822 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
3823 (void) fprintf(stderr,
3824 gettext("Error: Stream can not be written to a terminal.\n"
3825 "You must redirect standard output.\n"));
3826 return (1);
3827 }
3828
3829 if (resume_token != NULL) {
3830 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
3831 resume_token));
3832 }
3833
3834 /*
3835 * Special case sending a filesystem, or from a bookmark.
3836 */
3837 if (strchr(argv[0], '@') == NULL ||
3838 (fromname && strchr(fromname, '#') != NULL)) {
3839 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
3840 enum lzc_send_flags lzc_flags = 0;
3841
3842 if (flags.replicate || flags.doall || flags.props ||
3843 flags.dedup || flags.dryrun || flags.verbose ||
3844 flags.progress) {
3845 (void) fprintf(stderr,
3846 gettext("Error: "
3847 "Unsupported flag with filesystem or bookmark.\n"));
3848 return (1);
3849 }
3850
3851 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
3852 if (zhp == NULL)
3853 return (1);
3854
3855 if (flags.largeblock)
3856 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
3857 if (flags.embed_data)
3858 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
3859 if (flags.compress)
3860 lzc_flags |= LZC_SEND_FLAG_COMPRESS;
3861
3862 if (fromname != NULL &&
3863 (fromname[0] == '#' || fromname[0] == '@')) {
3864 /*
3865 * Incremental source name begins with # or @.
3866 * Default to same fs as target.
3867 */
3868 (void) strlcpy(frombuf, argv[0], sizeof (frombuf));
3869 cp = strchr(frombuf, '@');
3870 if (cp != NULL)
3871 *cp = '\0';
3872 (void) strlcat(frombuf, fromname, sizeof (frombuf));
3873 fromname = frombuf;
3874 }
3875 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags);
3876 zfs_close(zhp);
3877 return (err != 0);
3878 }
3879
3880 cp = strchr(argv[0], '@');
3881 *cp = '\0';
3882 toname = cp + 1;
3883 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3884 if (zhp == NULL)
3885 return (1);
3886
3887 /*
3888 * If they specified the full path to the snapshot, chop off
3889 * everything except the short name of the snapshot, but special
3890 * case if they specify the origin.
3891 */
3892 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3893 char origin[ZFS_MAX_DATASET_NAME_LEN];
3894 zprop_source_t src;
3895
3896 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3897 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3898
3899 if (strcmp(origin, fromname) == 0) {
3900 fromname = NULL;
3901 flags.fromorigin = B_TRUE;
3902 } else {
3903 *cp = '\0';
3904 if (cp != fromname && strcmp(argv[0], fromname)) {
3905 (void) fprintf(stderr,
3906 gettext("incremental source must be "
3907 "in same filesystem\n"));
3908 usage(B_FALSE);
3909 }
3910 fromname = cp + 1;
3911 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3912 (void) fprintf(stderr,
3913 gettext("invalid incremental source\n"));
3914 usage(B_FALSE);
3915 }
3916 }
3917 }
3918
3919 if (flags.replicate && fromname == NULL)
3920 flags.doall = B_TRUE;
3921
3922 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
3923 extraverbose ? &dbgnv : NULL);
3924
3925 if (extraverbose && dbgnv != NULL) {
3926 /*
3927 * dump_nvlist prints to stdout, but that's been
3928 * redirected to a file. Make it print to stderr
3929 * instead.
3930 */
3931 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3932 dump_nvlist(dbgnv, 0);
3933 nvlist_free(dbgnv);
3934 }
3935 zfs_close(zhp);
3936
3937 return (err != 0);
3938 }
3939
3940 /*
3941 * Restore a backup stream from stdin.
3942 */
3943 static int
3944 zfs_do_receive(int argc, char **argv)
3945 {
3946 int c, err;
3947 recvflags_t flags = { 0 };
3948 boolean_t abort_resumable = B_FALSE;
3949
3950 nvlist_t *props;
3951 nvpair_t *nvp = NULL;
3952
3953 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3954 nomem();
3955
3956 /* check options */
3957 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) {
3958 switch (c) {
3959 case 'o':
3960 if (parseprop(props, optarg) != 0) {
3961 nvlist_free(props);
3962 return (1);
3963 }
3964 break;
3965 case 'd':
3966 flags.isprefix = B_TRUE;
3967 break;
3968 case 'e':
3969 flags.isprefix = B_TRUE;
3970 flags.istail = B_TRUE;
3971 break;
3972 case 'n':
3973 flags.dryrun = B_TRUE;
3974 break;
3975 case 'u':
3976 flags.nomount = B_TRUE;
3977 break;
3978 case 'v':
3979 flags.verbose = B_TRUE;
3980 break;
3981 case 's':
3982 flags.resumable = B_TRUE;
3983 break;
3984 case 'F':
3985 flags.force = B_TRUE;
3986 break;
3987 case 'A':
3988 abort_resumable = B_TRUE;
3989 break;
3990 case ':':
3991 (void) fprintf(stderr, gettext("missing argument for "
3992 "'%c' option\n"), optopt);
3993 usage(B_FALSE);
3994 break;
3995 case '?':
3996 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3997 optopt);
3998 usage(B_FALSE);
3999 }
4000 }
4001
4002 argc -= optind;
4003 argv += optind;
4004
4005 /* check number of arguments */
4006 if (argc < 1) {
4007 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4008 usage(B_FALSE);
4009 }
4010 if (argc > 1) {
4011 (void) fprintf(stderr, gettext("too many arguments\n"));
4012 usage(B_FALSE);
4013 }
4014
4015 while ((nvp = nvlist_next_nvpair(props, nvp))) {
4016 if (strcmp(nvpair_name(nvp), "origin") != 0) {
4017 (void) fprintf(stderr, gettext("invalid option"));
4018 usage(B_FALSE);
4019 }
4020 }
4021
4022 if (abort_resumable) {
4023 if (flags.isprefix || flags.istail || flags.dryrun ||
4024 flags.resumable || flags.nomount) {
4025 (void) fprintf(stderr, gettext("invalid option"));
4026 usage(B_FALSE);
4027 }
4028
4029 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4030 (void) snprintf(namebuf, sizeof (namebuf),
4031 "%s/%%recv", argv[0]);
4032
4033 if (zfs_dataset_exists(g_zfs, namebuf,
4034 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4035 zfs_handle_t *zhp = zfs_open(g_zfs,
4036 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4037 if (zhp == NULL) {
4038 nvlist_free(props);
4039 return (1);
4040 }
4041 err = zfs_destroy(zhp, B_FALSE);
4042 zfs_close(zhp);
4043 } else {
4044 zfs_handle_t *zhp = zfs_open(g_zfs,
4045 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4046 if (zhp == NULL)
4047 usage(B_FALSE);
4048 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4049 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4050 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4051 (void) fprintf(stderr,
4052 gettext("'%s' does not have any "
4053 "resumable receive state to abort\n"),
4054 argv[0]);
4055 nvlist_free(props);
4056 zfs_close(zhp);
4057 return (1);
4058 }
4059 err = zfs_destroy(zhp, B_FALSE);
4060 zfs_close(zhp);
4061 }
4062 nvlist_free(props);
4063 return (err != 0);
4064 }
4065
4066 if (isatty(STDIN_FILENO)) {
4067 (void) fprintf(stderr,
4068 gettext("Error: Backup stream can not be read "
4069 "from a terminal.\n"
4070 "You must redirect standard input.\n"));
4071 nvlist_free(props);
4072 return (1);
4073 }
4074 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4075 nvlist_free(props);
4076
4077 return (err != 0);
4078 }
4079
4080 /*
4081 * allow/unallow stuff
4082 */
4083 /* copied from zfs/sys/dsl_deleg.h */
4084 #define ZFS_DELEG_PERM_CREATE "create"
4085 #define ZFS_DELEG_PERM_DESTROY "destroy"
4086 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4087 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4088 #define ZFS_DELEG_PERM_CLONE "clone"
4089 #define ZFS_DELEG_PERM_PROMOTE "promote"
4090 #define ZFS_DELEG_PERM_RENAME "rename"
4091 #define ZFS_DELEG_PERM_MOUNT "mount"
4092 #define ZFS_DELEG_PERM_SHARE "share"
4093 #define ZFS_DELEG_PERM_SEND "send"
4094 #define ZFS_DELEG_PERM_RECEIVE "receive"
4095 #define ZFS_DELEG_PERM_ALLOW "allow"
4096 #define ZFS_DELEG_PERM_USERPROP "userprop"
4097 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4098 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4099 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4100 #define ZFS_DELEG_PERM_USERUSED "userused"
4101 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4102 #define ZFS_DELEG_PERM_HOLD "hold"
4103 #define ZFS_DELEG_PERM_RELEASE "release"
4104 #define ZFS_DELEG_PERM_DIFF "diff"
4105 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4106
4107 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4108
4109 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4110 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4111 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4112 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4113 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4114 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4115 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4116 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4117 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4118 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4119 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4120 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4121 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4122 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4123 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4124 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4125 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4126
4127 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4128 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4129 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4130 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4131 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4132 { NULL, ZFS_DELEG_NOTE_NONE }
4133 };
4134
4135 /* permission structure */
4136 typedef struct deleg_perm {
4137 zfs_deleg_who_type_t dp_who_type;
4138 const char *dp_name;
4139 boolean_t dp_local;
4140 boolean_t dp_descend;
4141 } deleg_perm_t;
4142
4143 /* */
4144 typedef struct deleg_perm_node {
4145 deleg_perm_t dpn_perm;
4146
4147 uu_avl_node_t dpn_avl_node;
4148 } deleg_perm_node_t;
4149
4150 typedef struct fs_perm fs_perm_t;
4151
4152 /* permissions set */
4153 typedef struct who_perm {
4154 zfs_deleg_who_type_t who_type;
4155 const char *who_name; /* id */
4156 char who_ug_name[256]; /* user/group name */
4157 fs_perm_t *who_fsperm; /* uplink */
4158
4159 uu_avl_t *who_deleg_perm_avl; /* permissions */
4160 } who_perm_t;
4161
4162 /* */
4163 typedef struct who_perm_node {
4164 who_perm_t who_perm;
4165 uu_avl_node_t who_avl_node;
4166 } who_perm_node_t;
4167
4168 typedef struct fs_perm_set fs_perm_set_t;
4169 /* fs permissions */
4170 struct fs_perm {
4171 const char *fsp_name;
4172
4173 uu_avl_t *fsp_sc_avl; /* sets,create */
4174 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4175
4176 fs_perm_set_t *fsp_set; /* uplink */
4177 };
4178
4179 /* */
4180 typedef struct fs_perm_node {
4181 fs_perm_t fspn_fsperm;
4182 uu_avl_t *fspn_avl;
4183
4184 uu_list_node_t fspn_list_node;
4185 } fs_perm_node_t;
4186
4187 /* top level structure */
4188 struct fs_perm_set {
4189 uu_list_pool_t *fsps_list_pool;
4190 uu_list_t *fsps_list; /* list of fs_perms */
4191
4192 uu_avl_pool_t *fsps_named_set_avl_pool;
4193 uu_avl_pool_t *fsps_who_perm_avl_pool;
4194 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4195 };
4196
4197 static inline const char *
4198 deleg_perm_type(zfs_deleg_note_t note)
4199 {
4200 /* subcommands */
4201 switch (note) {
4202 /* SUBCOMMANDS */
4203 /* OTHER */
4204 case ZFS_DELEG_NOTE_GROUPQUOTA:
4205 case ZFS_DELEG_NOTE_GROUPUSED:
4206 case ZFS_DELEG_NOTE_USERPROP:
4207 case ZFS_DELEG_NOTE_USERQUOTA:
4208 case ZFS_DELEG_NOTE_USERUSED:
4209 /* other */
4210 return (gettext("other"));
4211 default:
4212 return (gettext("subcommand"));
4213 }
4214 }
4215
4216 static int inline
4217 who_type2weight(zfs_deleg_who_type_t who_type)
4218 {
4219 int res;
4220 switch (who_type) {
4221 case ZFS_DELEG_NAMED_SET_SETS:
4222 case ZFS_DELEG_NAMED_SET:
4223 res = 0;
4224 break;
4225 case ZFS_DELEG_CREATE_SETS:
4226 case ZFS_DELEG_CREATE:
4227 res = 1;
4228 break;
4229 case ZFS_DELEG_USER_SETS:
4230 case ZFS_DELEG_USER:
4231 res = 2;
4232 break;
4233 case ZFS_DELEG_GROUP_SETS:
4234 case ZFS_DELEG_GROUP:
4235 res = 3;
4236 break;
4237 case ZFS_DELEG_EVERYONE_SETS:
4238 case ZFS_DELEG_EVERYONE:
4239 res = 4;
4240 break;
4241 default:
4242 res = -1;
4243 }
4244
4245 return (res);
4246 }
4247
4248 /* ARGSUSED */
4249 static int
4250 who_perm_compare(const void *larg, const void *rarg, void *unused)
4251 {
4252 const who_perm_node_t *l = larg;
4253 const who_perm_node_t *r = rarg;
4254 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4255 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4256 int lweight = who_type2weight(ltype);
4257 int rweight = who_type2weight(rtype);
4258 int res = lweight - rweight;
4259 if (res == 0)
4260 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4261 ZFS_MAX_DELEG_NAME-1);
4262
4263 if (res == 0)
4264 return (0);
4265 if (res > 0)
4266 return (1);
4267 else
4268 return (-1);
4269 }
4270
4271 /* ARGSUSED */
4272 static int
4273 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4274 {
4275 const deleg_perm_node_t *l = larg;
4276 const deleg_perm_node_t *r = rarg;
4277 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4278 ZFS_MAX_DELEG_NAME-1);
4279
4280 if (res == 0)
4281 return (0);
4282
4283 if (res > 0)
4284 return (1);
4285 else
4286 return (-1);
4287 }
4288
4289 static inline void
4290 fs_perm_set_init(fs_perm_set_t *fspset)
4291 {
4292 bzero(fspset, sizeof (fs_perm_set_t));
4293
4294 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4295 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4296 NULL, UU_DEFAULT)) == NULL)
4297 nomem();
4298 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4299 UU_DEFAULT)) == NULL)
4300 nomem();
4301
4302 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4303 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4304 who_perm_node_t, who_avl_node), who_perm_compare,
4305 UU_DEFAULT)) == NULL)
4306 nomem();
4307
4308 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4309 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4310 who_perm_node_t, who_avl_node), who_perm_compare,
4311 UU_DEFAULT)) == NULL)
4312 nomem();
4313
4314 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4315 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4316 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4317 == NULL)
4318 nomem();
4319 }
4320
4321 static inline void fs_perm_fini(fs_perm_t *);
4322 static inline void who_perm_fini(who_perm_t *);
4323
4324 static inline void
4325 fs_perm_set_fini(fs_perm_set_t *fspset)
4326 {
4327 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4328
4329 while (node != NULL) {
4330 fs_perm_node_t *next_node =
4331 uu_list_next(fspset->fsps_list, node);
4332 fs_perm_t *fsperm = &node->fspn_fsperm;
4333 fs_perm_fini(fsperm);
4334 uu_list_remove(fspset->fsps_list, node);
4335 free(node);
4336 node = next_node;
4337 }
4338
4339 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4340 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4341 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4342 }
4343
4344 static inline void
4345 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4346 const char *name)
4347 {
4348 deleg_perm->dp_who_type = type;
4349 deleg_perm->dp_name = name;
4350 }
4351
4352 static inline void
4353 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4354 zfs_deleg_who_type_t type, const char *name)
4355 {
4356 uu_avl_pool_t *pool;
4357 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4358
4359 bzero(who_perm, sizeof (who_perm_t));
4360
4361 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4362 UU_DEFAULT)) == NULL)
4363 nomem();
4364
4365 who_perm->who_type = type;
4366 who_perm->who_name = name;
4367 who_perm->who_fsperm = fsperm;
4368 }
4369
4370 static inline void
4371 who_perm_fini(who_perm_t *who_perm)
4372 {
4373 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4374
4375 while (node != NULL) {
4376 deleg_perm_node_t *next_node =
4377 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4378
4379 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4380 free(node);
4381 node = next_node;
4382 }
4383
4384 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4385 }
4386
4387 static inline void
4388 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4389 {
4390 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4391 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4392
4393 bzero(fsperm, sizeof (fs_perm_t));
4394
4395 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4396 == NULL)
4397 nomem();
4398
4399 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4400 == NULL)
4401 nomem();
4402
4403 fsperm->fsp_set = fspset;
4404 fsperm->fsp_name = fsname;
4405 }
4406
4407 static inline void
4408 fs_perm_fini(fs_perm_t *fsperm)
4409 {
4410 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4411 while (node != NULL) {
4412 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4413 node);
4414 who_perm_t *who_perm = &node->who_perm;
4415 who_perm_fini(who_perm);
4416 uu_avl_remove(fsperm->fsp_sc_avl, node);
4417 free(node);
4418 node = next_node;
4419 }
4420
4421 node = uu_avl_first(fsperm->fsp_uge_avl);
4422 while (node != NULL) {
4423 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4424 node);
4425 who_perm_t *who_perm = &node->who_perm;
4426 who_perm_fini(who_perm);
4427 uu_avl_remove(fsperm->fsp_uge_avl, node);
4428 free(node);
4429 node = next_node;
4430 }
4431
4432 uu_avl_destroy(fsperm->fsp_sc_avl);
4433 uu_avl_destroy(fsperm->fsp_uge_avl);
4434 }
4435
4436 static void inline
4437 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4438 zfs_deleg_who_type_t who_type, const char *name, char locality)
4439 {
4440 uu_avl_index_t idx = 0;
4441
4442 deleg_perm_node_t *found_node = NULL;
4443 deleg_perm_t *deleg_perm = &node->dpn_perm;
4444
4445 deleg_perm_init(deleg_perm, who_type, name);
4446
4447 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4448 == NULL)
4449 uu_avl_insert(avl, node, idx);
4450 else {
4451 node = found_node;
4452 deleg_perm = &node->dpn_perm;
4453 }
4454
4455
4456 switch (locality) {
4457 case ZFS_DELEG_LOCAL:
4458 deleg_perm->dp_local = B_TRUE;
4459 break;
4460 case ZFS_DELEG_DESCENDENT:
4461 deleg_perm->dp_descend = B_TRUE;
4462 break;
4463 case ZFS_DELEG_NA:
4464 break;
4465 default:
4466 assert(B_FALSE); /* invalid locality */
4467 }
4468 }
4469
4470 static inline int
4471 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4472 {
4473 nvpair_t *nvp = NULL;
4474 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4475 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4476 zfs_deleg_who_type_t who_type = who_perm->who_type;
4477
4478 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4479 const char *name = nvpair_name(nvp);
4480 data_type_t type = nvpair_type(nvp);
4481 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4482 deleg_perm_node_t *node =
4483 safe_malloc(sizeof (deleg_perm_node_t));
4484
4485 VERIFY(type == DATA_TYPE_BOOLEAN);
4486
4487 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4488 set_deleg_perm_node(avl, node, who_type, name, locality);
4489 }
4490
4491 return (0);
4492 }
4493
4494 static inline int
4495 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4496 {
4497 nvpair_t *nvp = NULL;
4498 fs_perm_set_t *fspset = fsperm->fsp_set;
4499
4500 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4501 nvlist_t *nvl2 = NULL;
4502 const char *name = nvpair_name(nvp);
4503 uu_avl_t *avl = NULL;
4504 uu_avl_pool_t *avl_pool = NULL;
4505 zfs_deleg_who_type_t perm_type = name[0];
4506 char perm_locality = name[1];
4507 const char *perm_name = name + 3;
4508 boolean_t is_set = B_TRUE;
4509 who_perm_t *who_perm = NULL;
4510
4511 assert('$' == name[2]);
4512
4513 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4514 return (-1);
4515
4516 switch (perm_type) {
4517 case ZFS_DELEG_CREATE:
4518 case ZFS_DELEG_CREATE_SETS:
4519 case ZFS_DELEG_NAMED_SET:
4520 case ZFS_DELEG_NAMED_SET_SETS:
4521 avl_pool = fspset->fsps_named_set_avl_pool;
4522 avl = fsperm->fsp_sc_avl;
4523 break;
4524 case ZFS_DELEG_USER:
4525 case ZFS_DELEG_USER_SETS:
4526 case ZFS_DELEG_GROUP:
4527 case ZFS_DELEG_GROUP_SETS:
4528 case ZFS_DELEG_EVERYONE:
4529 case ZFS_DELEG_EVERYONE_SETS:
4530 avl_pool = fspset->fsps_who_perm_avl_pool;
4531 avl = fsperm->fsp_uge_avl;
4532 break;
4533 default:
4534 break;
4535 }
4536
4537 if (is_set) {
4538 who_perm_node_t *found_node = NULL;
4539 who_perm_node_t *node = safe_malloc(
4540 sizeof (who_perm_node_t));
4541 who_perm = &node->who_perm;
4542 uu_avl_index_t idx = 0;
4543
4544 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4545 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4546
4547 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4548 == NULL) {
4549 if (avl == fsperm->fsp_uge_avl) {
4550 uid_t rid = 0;
4551 struct passwd *p = NULL;
4552 struct group *g = NULL;
4553 const char *nice_name = NULL;
4554
4555 switch (perm_type) {
4556 case ZFS_DELEG_USER_SETS:
4557 case ZFS_DELEG_USER:
4558 rid = atoi(perm_name);
4559 p = getpwuid(rid);
4560 if (p)
4561 nice_name = p->pw_name;
4562 break;
4563 case ZFS_DELEG_GROUP_SETS:
4564 case ZFS_DELEG_GROUP:
4565 rid = atoi(perm_name);
4566 g = getgrgid(rid);
4567 if (g)
4568 nice_name = g->gr_name;
4569 break;
4570 default:
4571 break;
4572 }
4573
4574 if (nice_name != NULL)
4575 (void) strlcpy(
4576 node->who_perm.who_ug_name,
4577 nice_name, 256);
4578 }
4579
4580 uu_avl_insert(avl, node, idx);
4581 } else {
4582 node = found_node;
4583 who_perm = &node->who_perm;
4584 }
4585 }
4586 VERIFY3P(who_perm, !=, NULL);
4587 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4588 }
4589
4590 return (0);
4591 }
4592
4593 static inline int
4594 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4595 {
4596 nvpair_t *nvp = NULL;
4597 uu_avl_index_t idx = 0;
4598
4599 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4600 nvlist_t *nvl2 = NULL;
4601 const char *fsname = nvpair_name(nvp);
4602 data_type_t type = nvpair_type(nvp);
4603 fs_perm_t *fsperm = NULL;
4604 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4605 if (node == NULL)
4606 nomem();
4607
4608 fsperm = &node->fspn_fsperm;
4609
4610 VERIFY(DATA_TYPE_NVLIST == type);
4611
4612 uu_list_node_init(node, &node->fspn_list_node,
4613 fspset->fsps_list_pool);
4614
4615 idx = uu_list_numnodes(fspset->fsps_list);
4616 fs_perm_init(fsperm, fspset, fsname);
4617
4618 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4619 return (-1);
4620
4621 (void) parse_fs_perm(fsperm, nvl2);
4622
4623 uu_list_insert(fspset->fsps_list, node, idx);
4624 }
4625
4626 return (0);
4627 }
4628
4629 static inline const char *
4630 deleg_perm_comment(zfs_deleg_note_t note)
4631 {
4632 const char *str = "";
4633
4634 /* subcommands */
4635 switch (note) {
4636 /* SUBCOMMANDS */
4637 case ZFS_DELEG_NOTE_ALLOW:
4638 str = gettext("Must also have the permission that is being"
4639 "\n\t\t\t\tallowed");
4640 break;
4641 case ZFS_DELEG_NOTE_CLONE:
4642 str = gettext("Must also have the 'create' ability and 'mount'"
4643 "\n\t\t\t\tability in the origin file system");
4644 break;
4645 case ZFS_DELEG_NOTE_CREATE:
4646 str = gettext("Must also have the 'mount' ability");
4647 break;
4648 case ZFS_DELEG_NOTE_DESTROY:
4649 str = gettext("Must also have the 'mount' ability");
4650 break;
4651 case ZFS_DELEG_NOTE_DIFF:
4652 str = gettext("Allows lookup of paths within a dataset;"
4653 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4654 "\n\t\t\t\tin order to use zfs diff");
4655 break;
4656 case ZFS_DELEG_NOTE_HOLD:
4657 str = gettext("Allows adding a user hold to a snapshot");
4658 break;
4659 case ZFS_DELEG_NOTE_MOUNT:
4660 str = gettext("Allows mount/umount of ZFS datasets");
4661 break;
4662 case ZFS_DELEG_NOTE_PROMOTE:
4663 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4664 " 'promote' ability in the origin file system");
4665 break;
4666 case ZFS_DELEG_NOTE_RECEIVE:
4667 str = gettext("Must also have the 'mount' and 'create'"
4668 " ability");
4669 break;
4670 case ZFS_DELEG_NOTE_RELEASE:
4671 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4672 "might destroy the snapshot");
4673 break;
4674 case ZFS_DELEG_NOTE_RENAME:
4675 str = gettext("Must also have the 'mount' and 'create'"
4676 "\n\t\t\t\tability in the new parent");
4677 break;
4678 case ZFS_DELEG_NOTE_ROLLBACK:
4679 str = gettext("");
4680 break;
4681 case ZFS_DELEG_NOTE_SEND:
4682 str = gettext("");
4683 break;
4684 case ZFS_DELEG_NOTE_SHARE:
4685 str = gettext("Allows sharing file systems over NFS or SMB"
4686 "\n\t\t\t\tprotocols");
4687 break;
4688 case ZFS_DELEG_NOTE_SNAPSHOT:
4689 str = gettext("");
4690 break;
4691 /*
4692 * case ZFS_DELEG_NOTE_VSCAN:
4693 * str = gettext("");
4694 * break;
4695 */
4696 /* OTHER */
4697 case ZFS_DELEG_NOTE_GROUPQUOTA:
4698 str = gettext("Allows accessing any groupquota@... property");
4699 break;
4700 case ZFS_DELEG_NOTE_GROUPUSED:
4701 str = gettext("Allows reading any groupused@... property");
4702 break;
4703 case ZFS_DELEG_NOTE_USERPROP:
4704 str = gettext("Allows changing any user property");
4705 break;
4706 case ZFS_DELEG_NOTE_USERQUOTA:
4707 str = gettext("Allows accessing any userquota@... property");
4708 break;
4709 case ZFS_DELEG_NOTE_USERUSED:
4710 str = gettext("Allows reading any userused@... property");
4711 break;
4712 /* other */
4713 default:
4714 str = "";
4715 }
4716
4717 return (str);
4718 }
4719
4720 struct allow_opts {
4721 boolean_t local;
4722 boolean_t descend;
4723 boolean_t user;
4724 boolean_t group;
4725 boolean_t everyone;
4726 boolean_t create;
4727 boolean_t set;
4728 boolean_t recursive; /* unallow only */
4729 boolean_t prt_usage;
4730
4731 boolean_t prt_perms;
4732 char *who;
4733 char *perms;
4734 const char *dataset;
4735 };
4736
4737 static inline int
4738 prop_cmp(const void *a, const void *b)
4739 {
4740 const char *str1 = *(const char **)a;
4741 const char *str2 = *(const char **)b;
4742 return (strcmp(str1, str2));
4743 }
4744
4745 static void
4746 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4747 {
4748 const char *opt_desc[] = {
4749 "-h", gettext("show this help message and exit"),
4750 "-l", gettext("set permission locally"),
4751 "-d", gettext("set permission for descents"),
4752 "-u", gettext("set permission for user"),
4753 "-g", gettext("set permission for group"),
4754 "-e", gettext("set permission for everyone"),
4755 "-c", gettext("set create time permission"),
4756 "-s", gettext("define permission set"),
4757 /* unallow only */
4758 "-r", gettext("remove permissions recursively"),
4759 };
4760 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4761 size_t allow_size = unallow_size - 2;
4762 const char *props[ZFS_NUM_PROPS];
4763 int i;
4764 size_t count = 0;
4765 FILE *fp = requested ? stdout : stderr;
4766 zprop_desc_t *pdtbl = zfs_prop_get_table();
4767 const char *fmt = gettext("%-16s %-14s\t%s\n");
4768
4769 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4770 HELP_ALLOW));
4771 (void) fprintf(fp, gettext("Options:\n"));
4772 for (i = 0; i < (un ? unallow_size : allow_size); i++) {
4773 const char *opt = opt_desc[i++];
4774 const char *optdsc = opt_desc[i];
4775 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4776 }
4777
4778 (void) fprintf(fp, gettext("\nThe following permissions are "
4779 "supported:\n\n"));
4780 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4781 gettext("NOTES"));
4782 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4783 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4784 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4785 const char *perm_type = deleg_perm_type(perm_note);
4786 const char *perm_comment = deleg_perm_comment(perm_note);
4787 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4788 }
4789
4790 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4791 zprop_desc_t *pd = &pdtbl[i];
4792 if (pd->pd_visible != B_TRUE)
4793 continue;
4794
4795 if (pd->pd_attr == PROP_READONLY)
4796 continue;
4797
4798 props[count++] = pd->pd_name;
4799 }
4800 props[count] = NULL;
4801
4802 qsort(props, count, sizeof (char *), prop_cmp);
4803
4804 for (i = 0; i < count; i++)
4805 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4806
4807 if (msg != NULL)
4808 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4809
4810 exit(requested ? 0 : 2);
4811 }
4812
4813 static inline const char *
4814 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4815 char **permsp)
4816 {
4817 if (un && argc == expected_argc - 1)
4818 *permsp = NULL;
4819 else if (argc == expected_argc)
4820 *permsp = argv[argc - 2];
4821 else
4822 allow_usage(un, B_FALSE,
4823 gettext("wrong number of parameters\n"));
4824
4825 return (argv[argc - 1]);
4826 }
4827
4828 static void
4829 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4830 {
4831 int uge_sum = opts->user + opts->group + opts->everyone;
4832 int csuge_sum = opts->create + opts->set + uge_sum;
4833 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4834 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4835
4836 if (uge_sum > 1)
4837 allow_usage(un, B_FALSE,
4838 gettext("-u, -g, and -e are mutually exclusive\n"));
4839
4840 if (opts->prt_usage) {
4841 if (argc == 0 && all_sum == 0)
4842 allow_usage(un, B_TRUE, NULL);
4843 else
4844 usage(B_FALSE);
4845 }
4846
4847 if (opts->set) {
4848 if (csuge_sum > 1)
4849 allow_usage(un, B_FALSE,
4850 gettext("invalid options combined with -s\n"));
4851
4852 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4853 if (argv[0][0] != '@')
4854 allow_usage(un, B_FALSE,
4855 gettext("invalid set name: missing '@' prefix\n"));
4856 opts->who = argv[0];
4857 } else if (opts->create) {
4858 if (ldcsuge_sum > 1)
4859 allow_usage(un, B_FALSE,
4860 gettext("invalid options combined with -c\n"));
4861 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4862 } else if (opts->everyone) {
4863 if (csuge_sum > 1)
4864 allow_usage(un, B_FALSE,
4865 gettext("invalid options combined with -e\n"));
4866 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4867 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4868 == 0) {
4869 opts->everyone = B_TRUE;
4870 argc--;
4871 argv++;
4872 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4873 } else if (argc == 1 && !un) {
4874 opts->prt_perms = B_TRUE;
4875 opts->dataset = argv[argc-1];
4876 } else {
4877 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4878 opts->who = argv[0];
4879 }
4880
4881 if (!opts->local && !opts->descend) {
4882 opts->local = B_TRUE;
4883 opts->descend = B_TRUE;
4884 }
4885 }
4886
4887 static void
4888 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4889 const char *who, char *perms, nvlist_t *top_nvl)
4890 {
4891 int i;
4892 char ld[2] = { '\0', '\0' };
4893 char who_buf[MAXNAMELEN + 32];
4894 char base_type = ZFS_DELEG_WHO_UNKNOWN;
4895 char set_type = ZFS_DELEG_WHO_UNKNOWN;
4896 nvlist_t *base_nvl = NULL;
4897 nvlist_t *set_nvl = NULL;
4898 nvlist_t *nvl;
4899
4900 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4901 nomem();
4902 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4903 nomem();
4904
4905 switch (type) {
4906 case ZFS_DELEG_NAMED_SET_SETS:
4907 case ZFS_DELEG_NAMED_SET:
4908 set_type = ZFS_DELEG_NAMED_SET_SETS;
4909 base_type = ZFS_DELEG_NAMED_SET;
4910 ld[0] = ZFS_DELEG_NA;
4911 break;
4912 case ZFS_DELEG_CREATE_SETS:
4913 case ZFS_DELEG_CREATE:
4914 set_type = ZFS_DELEG_CREATE_SETS;
4915 base_type = ZFS_DELEG_CREATE;
4916 ld[0] = ZFS_DELEG_NA;
4917 break;
4918 case ZFS_DELEG_USER_SETS:
4919 case ZFS_DELEG_USER:
4920 set_type = ZFS_DELEG_USER_SETS;
4921 base_type = ZFS_DELEG_USER;
4922 if (local)
4923 ld[0] = ZFS_DELEG_LOCAL;
4924 if (descend)
4925 ld[1] = ZFS_DELEG_DESCENDENT;
4926 break;
4927 case ZFS_DELEG_GROUP_SETS:
4928 case ZFS_DELEG_GROUP:
4929 set_type = ZFS_DELEG_GROUP_SETS;
4930 base_type = ZFS_DELEG_GROUP;
4931 if (local)
4932 ld[0] = ZFS_DELEG_LOCAL;
4933 if (descend)
4934 ld[1] = ZFS_DELEG_DESCENDENT;
4935 break;
4936 case ZFS_DELEG_EVERYONE_SETS:
4937 case ZFS_DELEG_EVERYONE:
4938 set_type = ZFS_DELEG_EVERYONE_SETS;
4939 base_type = ZFS_DELEG_EVERYONE;
4940 if (local)
4941 ld[0] = ZFS_DELEG_LOCAL;
4942 if (descend)
4943 ld[1] = ZFS_DELEG_DESCENDENT;
4944 default:
4945 break;
4946 }
4947
4948 if (perms != NULL) {
4949 char *curr = perms;
4950 char *end = curr + strlen(perms);
4951
4952 while (curr < end) {
4953 char *delim = strchr(curr, ',');
4954 if (delim == NULL)
4955 delim = end;
4956 else
4957 *delim = '\0';
4958
4959 if (curr[0] == '@')
4960 nvl = set_nvl;
4961 else
4962 nvl = base_nvl;
4963
4964 (void) nvlist_add_boolean(nvl, curr);
4965 if (delim != end)
4966 *delim = ',';
4967 curr = delim + 1;
4968 }
4969
4970 for (i = 0; i < 2; i++) {
4971 char locality = ld[i];
4972 if (locality == 0)
4973 continue;
4974
4975 if (!nvlist_empty(base_nvl)) {
4976 if (who != NULL)
4977 (void) snprintf(who_buf,
4978 sizeof (who_buf), "%c%c$%s",
4979 base_type, locality, who);
4980 else
4981 (void) snprintf(who_buf,
4982 sizeof (who_buf), "%c%c$",
4983 base_type, locality);
4984
4985 (void) nvlist_add_nvlist(top_nvl, who_buf,
4986 base_nvl);
4987 }
4988
4989
4990 if (!nvlist_empty(set_nvl)) {
4991 if (who != NULL)
4992 (void) snprintf(who_buf,
4993 sizeof (who_buf), "%c%c$%s",
4994 set_type, locality, who);
4995 else
4996 (void) snprintf(who_buf,
4997 sizeof (who_buf), "%c%c$",
4998 set_type, locality);
4999
5000 (void) nvlist_add_nvlist(top_nvl, who_buf,
5001 set_nvl);
5002 }
5003 }
5004 } else {
5005 for (i = 0; i < 2; i++) {
5006 char locality = ld[i];
5007 if (locality == 0)
5008 continue;
5009
5010 if (who != NULL)
5011 (void) snprintf(who_buf, sizeof (who_buf),
5012 "%c%c$%s", base_type, locality, who);
5013 else
5014 (void) snprintf(who_buf, sizeof (who_buf),
5015 "%c%c$", base_type, locality);
5016 (void) nvlist_add_boolean(top_nvl, who_buf);
5017
5018 if (who != NULL)
5019 (void) snprintf(who_buf, sizeof (who_buf),
5020 "%c%c$%s", set_type, locality, who);
5021 else
5022 (void) snprintf(who_buf, sizeof (who_buf),
5023 "%c%c$", set_type, locality);
5024 (void) nvlist_add_boolean(top_nvl, who_buf);
5025 }
5026 }
5027 }
5028
5029 static int
5030 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5031 {
5032 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5033 nomem();
5034
5035 if (opts->set) {
5036 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5037 opts->descend, opts->who, opts->perms, *nvlp);
5038 } else if (opts->create) {
5039 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5040 opts->descend, NULL, opts->perms, *nvlp);
5041 } else if (opts->everyone) {
5042 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5043 opts->descend, NULL, opts->perms, *nvlp);
5044 } else {
5045 char *curr = opts->who;
5046 char *end = curr + strlen(curr);
5047
5048 while (curr < end) {
5049 const char *who;
5050 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5051 char *endch;
5052 char *delim = strchr(curr, ',');
5053 char errbuf[256];
5054 char id[64];
5055 struct passwd *p = NULL;
5056 struct group *g = NULL;
5057
5058 uid_t rid;
5059 if (delim == NULL)
5060 delim = end;
5061 else
5062 *delim = '\0';
5063
5064 rid = (uid_t)strtol(curr, &endch, 0);
5065 if (opts->user) {
5066 who_type = ZFS_DELEG_USER;
5067 if (*endch != '\0')
5068 p = getpwnam(curr);
5069 else
5070 p = getpwuid(rid);
5071
5072 if (p != NULL)
5073 rid = p->pw_uid;
5074 else {
5075 (void) snprintf(errbuf, 256, gettext(
5076 "invalid user %s"), curr);
5077 allow_usage(un, B_TRUE, errbuf);
5078 }
5079 } else if (opts->group) {
5080 who_type = ZFS_DELEG_GROUP;
5081 if (*endch != '\0')
5082 g = getgrnam(curr);
5083 else
5084 g = getgrgid(rid);
5085
5086 if (g != NULL)
5087 rid = g->gr_gid;
5088 else {
5089 (void) snprintf(errbuf, 256, gettext(
5090 "invalid group %s"), curr);
5091 allow_usage(un, B_TRUE, errbuf);
5092 }
5093 } else {
5094 if (*endch != '\0') {
5095 p = getpwnam(curr);
5096 } else {
5097 p = getpwuid(rid);
5098 }
5099
5100 if (p == NULL) {
5101 if (*endch != '\0') {
5102 g = getgrnam(curr);
5103 } else {
5104 g = getgrgid(rid);
5105 }
5106 }
5107
5108 if (p != NULL) {
5109 who_type = ZFS_DELEG_USER;
5110 rid = p->pw_uid;
5111 } else if (g != NULL) {
5112 who_type = ZFS_DELEG_GROUP;
5113 rid = g->gr_gid;
5114 } else {
5115 (void) snprintf(errbuf, 256, gettext(
5116 "invalid user/group %s"), curr);
5117 allow_usage(un, B_TRUE, errbuf);
5118 }
5119 }
5120
5121 (void) sprintf(id, "%u", rid);
5122 who = id;
5123
5124 store_allow_perm(who_type, opts->local,
5125 opts->descend, who, opts->perms, *nvlp);
5126 curr = delim + 1;
5127 }
5128 }
5129
5130 return (0);
5131 }
5132
5133 static void
5134 print_set_creat_perms(uu_avl_t *who_avl)
5135 {
5136 const char *sc_title[] = {
5137 gettext("Permission sets:\n"),
5138 gettext("Create time permissions:\n"),
5139 NULL
5140 };
5141 const char **title_ptr = sc_title;
5142 who_perm_node_t *who_node = NULL;
5143 int prev_weight = -1;
5144
5145 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5146 who_node = uu_avl_next(who_avl, who_node)) {
5147 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5148 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5149 const char *who_name = who_node->who_perm.who_name;
5150 int weight = who_type2weight(who_type);
5151 boolean_t first = B_TRUE;
5152 deleg_perm_node_t *deleg_node;
5153
5154 if (prev_weight != weight) {
5155 (void) printf("%s", *title_ptr++);
5156 prev_weight = weight;
5157 }
5158
5159 if (who_name == NULL || strnlen(who_name, 1) == 0)
5160 (void) printf("\t");
5161 else
5162 (void) printf("\t%s ", who_name);
5163
5164 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5165 deleg_node = uu_avl_next(avl, deleg_node)) {
5166 if (first) {
5167 (void) printf("%s",
5168 deleg_node->dpn_perm.dp_name);
5169 first = B_FALSE;
5170 } else
5171 (void) printf(",%s",
5172 deleg_node->dpn_perm.dp_name);
5173 }
5174
5175 (void) printf("\n");
5176 }
5177 }
5178
5179 static void inline
5180 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5181 const char *title)
5182 {
5183 who_perm_node_t *who_node = NULL;
5184 boolean_t prt_title = B_TRUE;
5185 uu_avl_walk_t *walk;
5186
5187 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5188 nomem();
5189
5190 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5191 const char *who_name = who_node->who_perm.who_name;
5192 const char *nice_who_name = who_node->who_perm.who_ug_name;
5193 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5194 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5195 char delim = ' ';
5196 deleg_perm_node_t *deleg_node;
5197 boolean_t prt_who = B_TRUE;
5198
5199 for (deleg_node = uu_avl_first(avl);
5200 deleg_node != NULL;
5201 deleg_node = uu_avl_next(avl, deleg_node)) {
5202 if (local != deleg_node->dpn_perm.dp_local ||
5203 descend != deleg_node->dpn_perm.dp_descend)
5204 continue;
5205
5206 if (prt_who) {
5207 const char *who = NULL;
5208 if (prt_title) {
5209 prt_title = B_FALSE;
5210 (void) printf("%s", title);
5211 }
5212
5213 switch (who_type) {
5214 case ZFS_DELEG_USER_SETS:
5215 case ZFS_DELEG_USER:
5216 who = gettext("user");
5217 if (nice_who_name)
5218 who_name = nice_who_name;
5219 break;
5220 case ZFS_DELEG_GROUP_SETS:
5221 case ZFS_DELEG_GROUP:
5222 who = gettext("group");
5223 if (nice_who_name)
5224 who_name = nice_who_name;
5225 break;
5226 case ZFS_DELEG_EVERYONE_SETS:
5227 case ZFS_DELEG_EVERYONE:
5228 who = gettext("everyone");
5229 who_name = NULL;
5230 default:
5231 break;
5232 }
5233
5234 prt_who = B_FALSE;
5235 if (who_name == NULL)
5236 (void) printf("\t%s", who);
5237 else
5238 (void) printf("\t%s %s", who, who_name);
5239 }
5240
5241 (void) printf("%c%s", delim,
5242 deleg_node->dpn_perm.dp_name);
5243 delim = ',';
5244 }
5245
5246 if (!prt_who)
5247 (void) printf("\n");
5248 }
5249
5250 uu_avl_walk_end(walk);
5251 }
5252
5253 static void
5254 print_fs_perms(fs_perm_set_t *fspset)
5255 {
5256 fs_perm_node_t *node = NULL;
5257 char buf[MAXNAMELEN + 32];
5258 const char *dsname = buf;
5259
5260 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5261 node = uu_list_next(fspset->fsps_list, node)) {
5262 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5263 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5264 int left = 0;
5265
5266 (void) snprintf(buf, sizeof (buf),
5267 gettext("---- Permissions on %s "),
5268 node->fspn_fsperm.fsp_name);
5269 (void) printf("%s", dsname);
5270 left = 70 - strlen(buf);
5271 while (left-- > 0)
5272 (void) printf("-");
5273 (void) printf("\n");
5274
5275 print_set_creat_perms(sc_avl);
5276 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5277 gettext("Local permissions:\n"));
5278 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5279 gettext("Descendent permissions:\n"));
5280 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5281 gettext("Local+Descendent permissions:\n"));
5282 }
5283 }
5284
5285 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5286
5287 struct deleg_perms {
5288 boolean_t un;
5289 nvlist_t *nvl;
5290 };
5291
5292 static int
5293 set_deleg_perms(zfs_handle_t *zhp, void *data)
5294 {
5295 struct deleg_perms *perms = (struct deleg_perms *)data;
5296 zfs_type_t zfs_type = zfs_get_type(zhp);
5297
5298 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5299 return (0);
5300
5301 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5302 }
5303
5304 static int
5305 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5306 {
5307 zfs_handle_t *zhp;
5308 nvlist_t *perm_nvl = NULL;
5309 nvlist_t *update_perm_nvl = NULL;
5310 int error = 1;
5311 int c;
5312 struct allow_opts opts = { 0 };
5313
5314 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5315
5316 /* check opts */
5317 while ((c = getopt(argc, argv, optstr)) != -1) {
5318 switch (c) {
5319 case 'l':
5320 opts.local = B_TRUE;
5321 break;
5322 case 'd':
5323 opts.descend = B_TRUE;
5324 break;
5325 case 'u':
5326 opts.user = B_TRUE;
5327 break;
5328 case 'g':
5329 opts.group = B_TRUE;
5330 break;
5331 case 'e':
5332 opts.everyone = B_TRUE;
5333 break;
5334 case 's':
5335 opts.set = B_TRUE;
5336 break;
5337 case 'c':
5338 opts.create = B_TRUE;
5339 break;
5340 case 'r':
5341 opts.recursive = B_TRUE;
5342 break;
5343 case ':':
5344 (void) fprintf(stderr, gettext("missing argument for "
5345 "'%c' option\n"), optopt);
5346 usage(B_FALSE);
5347 break;
5348 case 'h':
5349 opts.prt_usage = B_TRUE;
5350 break;
5351 case '?':
5352 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5353 optopt);
5354 usage(B_FALSE);
5355 }
5356 }
5357
5358 argc -= optind;
5359 argv += optind;
5360
5361 /* check arguments */
5362 parse_allow_args(argc, argv, un, &opts);
5363
5364 /* try to open the dataset */
5365 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5366 ZFS_TYPE_VOLUME)) == NULL) {
5367 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5368 opts.dataset);
5369 return (-1);
5370 }
5371
5372 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5373 goto cleanup2;
5374
5375 fs_perm_set_init(&fs_perm_set);
5376 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5377 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5378 goto cleanup1;
5379 }
5380
5381 if (opts.prt_perms)
5382 print_fs_perms(&fs_perm_set);
5383 else {
5384 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5385 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5386 goto cleanup0;
5387
5388 if (un && opts.recursive) {
5389 struct deleg_perms data = { un, update_perm_nvl };
5390 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5391 &data) != 0)
5392 goto cleanup0;
5393 }
5394 }
5395
5396 error = 0;
5397
5398 cleanup0:
5399 nvlist_free(perm_nvl);
5400 nvlist_free(update_perm_nvl);
5401 cleanup1:
5402 fs_perm_set_fini(&fs_perm_set);
5403 cleanup2:
5404 zfs_close(zhp);
5405
5406 return (error);
5407 }
5408
5409 static int
5410 zfs_do_allow(int argc, char **argv)
5411 {
5412 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5413 }
5414
5415 static int
5416 zfs_do_unallow(int argc, char **argv)
5417 {
5418 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5419 }
5420
5421 static int
5422 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5423 {
5424 int errors = 0;
5425 int i;
5426 const char *tag;
5427 boolean_t recursive = B_FALSE;
5428 const char *opts = holding ? "rt" : "r";
5429 int c;
5430
5431 /* check options */
5432 while ((c = getopt(argc, argv, opts)) != -1) {
5433 switch (c) {
5434 case 'r':
5435 recursive = B_TRUE;
5436 break;
5437 case '?':
5438 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5439 optopt);
5440 usage(B_FALSE);
5441 }
5442 }
5443
5444 argc -= optind;
5445 argv += optind;
5446
5447 /* check number of arguments */
5448 if (argc < 2)
5449 usage(B_FALSE);
5450
5451 tag = argv[0];
5452 --argc;
5453 ++argv;
5454
5455 if (holding && tag[0] == '.') {
5456 /* tags starting with '.' are reserved for libzfs */
5457 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5458 usage(B_FALSE);
5459 }
5460
5461 for (i = 0; i < argc; ++i) {
5462 zfs_handle_t *zhp;
5463 char parent[ZFS_MAX_DATASET_NAME_LEN];
5464 const char *delim;
5465 char *path = argv[i];
5466
5467 delim = strchr(path, '@');
5468 if (delim == NULL) {
5469 (void) fprintf(stderr,
5470 gettext("'%s' is not a snapshot\n"), path);
5471 ++errors;
5472 continue;
5473 }
5474 (void) strncpy(parent, path, delim - path);
5475 parent[delim - path] = '\0';
5476
5477 zhp = zfs_open(g_zfs, parent,
5478 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5479 if (zhp == NULL) {
5480 ++errors;
5481 continue;
5482 }
5483 if (holding) {
5484 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5485 ++errors;
5486 } else {
5487 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5488 ++errors;
5489 }
5490 zfs_close(zhp);
5491 }
5492
5493 return (errors != 0);
5494 }
5495
5496 /*
5497 * zfs hold [-r] [-t] <tag> <snap> ...
5498 *
5499 * -r Recursively hold
5500 *
5501 * Apply a user-hold with the given tag to the list of snapshots.
5502 */
5503 static int
5504 zfs_do_hold(int argc, char **argv)
5505 {
5506 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5507 }
5508
5509 /*
5510 * zfs release [-r] <tag> <snap> ...
5511 *
5512 * -r Recursively release
5513 *
5514 * Release a user-hold with the given tag from the list of snapshots.
5515 */
5516 static int
5517 zfs_do_release(int argc, char **argv)
5518 {
5519 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5520 }
5521
5522 typedef struct holds_cbdata {
5523 boolean_t cb_recursive;
5524 const char *cb_snapname;
5525 nvlist_t **cb_nvlp;
5526 size_t cb_max_namelen;
5527 size_t cb_max_taglen;
5528 } holds_cbdata_t;
5529
5530 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5531 #define DATETIME_BUF_LEN (32)
5532 /*
5533 *
5534 */
5535 static void
5536 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5537 {
5538 int i;
5539 nvpair_t *nvp = NULL;
5540 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5541 const char *col;
5542
5543 if (!scripted) {
5544 for (i = 0; i < 3; i++) {
5545 col = gettext(hdr_cols[i]);
5546 if (i < 2)
5547 (void) printf("%-*s ", i ? tagwidth : nwidth,
5548 col);
5549 else
5550 (void) printf("%s\n", col);
5551 }
5552 }
5553
5554 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5555 char *zname = nvpair_name(nvp);
5556 nvlist_t *nvl2;
5557 nvpair_t *nvp2 = NULL;
5558 (void) nvpair_value_nvlist(nvp, &nvl2);
5559 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5560 char tsbuf[DATETIME_BUF_LEN];
5561 char *tagname = nvpair_name(nvp2);
5562 uint64_t val = 0;
5563 time_t time;
5564 struct tm t;
5565 char sep = scripted ? '\t' : ' ';
5566 int sepnum = scripted ? 1 : 2;
5567
5568 (void) nvpair_value_uint64(nvp2, &val);
5569 time = (time_t)val;
5570 (void) localtime_r(&time, &t);
5571 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5572 gettext(STRFTIME_FMT_STR), &t);
5573
5574 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5575 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5576 }
5577 }
5578 }
5579
5580 /*
5581 * Generic callback function to list a dataset or snapshot.
5582 */
5583 static int
5584 holds_callback(zfs_handle_t *zhp, void *data)
5585 {
5586 holds_cbdata_t *cbp = data;
5587 nvlist_t *top_nvl = *cbp->cb_nvlp;
5588 nvlist_t *nvl = NULL;
5589 nvpair_t *nvp = NULL;
5590 const char *zname = zfs_get_name(zhp);
5591 size_t znamelen = strlen(zname);
5592
5593 if (cbp->cb_recursive) {
5594 const char *snapname;
5595 char *delim = strchr(zname, '@');
5596 if (delim == NULL)
5597 return (0);
5598
5599 snapname = delim + 1;
5600 if (strcmp(cbp->cb_snapname, snapname))
5601 return (0);
5602 }
5603
5604 if (zfs_get_holds(zhp, &nvl) != 0)
5605 return (-1);
5606
5607 if (znamelen > cbp->cb_max_namelen)
5608 cbp->cb_max_namelen = znamelen;
5609
5610 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5611 const char *tag = nvpair_name(nvp);
5612 size_t taglen = strlen(tag);
5613 if (taglen > cbp->cb_max_taglen)
5614 cbp->cb_max_taglen = taglen;
5615 }
5616
5617 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5618 }
5619
5620 /*
5621 * zfs holds [-r] <snap> ...
5622 *
5623 * -r Recursively hold
5624 */
5625 static int
5626 zfs_do_holds(int argc, char **argv)
5627 {
5628 int errors = 0;
5629 int c;
5630 int i;
5631 boolean_t scripted = B_FALSE;
5632 boolean_t recursive = B_FALSE;
5633 const char *opts = "rH";
5634 nvlist_t *nvl;
5635
5636 int types = ZFS_TYPE_SNAPSHOT;
5637 holds_cbdata_t cb = { 0 };
5638
5639 int limit = 0;
5640 int ret = 0;
5641 int flags = 0;
5642
5643 /* check options */
5644 while ((c = getopt(argc, argv, opts)) != -1) {
5645 switch (c) {
5646 case 'r':
5647 recursive = B_TRUE;
5648 break;
5649 case 'H':
5650 scripted = B_TRUE;
5651 break;
5652 case '?':
5653 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5654 optopt);
5655 usage(B_FALSE);
5656 }
5657 }
5658
5659 if (recursive) {
5660 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5661 flags |= ZFS_ITER_RECURSE;
5662 }
5663
5664 argc -= optind;
5665 argv += optind;
5666
5667 /* check number of arguments */
5668 if (argc < 1)
5669 usage(B_FALSE);
5670
5671 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5672 nomem();
5673
5674 for (i = 0; i < argc; ++i) {
5675 char *snapshot = argv[i];
5676 const char *delim;
5677 const char *snapname;
5678
5679 delim = strchr(snapshot, '@');
5680 if (delim == NULL) {
5681 (void) fprintf(stderr,
5682 gettext("'%s' is not a snapshot\n"), snapshot);
5683 ++errors;
5684 continue;
5685 }
5686 snapname = delim + 1;
5687 if (recursive)
5688 snapshot[delim - snapshot] = '\0';
5689
5690 cb.cb_recursive = recursive;
5691 cb.cb_snapname = snapname;
5692 cb.cb_nvlp = &nvl;
5693
5694 /*
5695 * 1. collect holds data, set format options
5696 */
5697 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5698 holds_callback, &cb);
5699 if (ret != 0)
5700 ++errors;
5701 }
5702
5703 /*
5704 * 2. print holds data
5705 */
5706 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5707
5708 if (nvlist_empty(nvl))
5709 (void) fprintf(stderr, gettext("no datasets available\n"));
5710
5711 nvlist_free(nvl);
5712
5713 return (0 != errors);
5714 }
5715
5716 #define CHECK_SPINNER 30
5717 #define SPINNER_TIME 3 /* seconds */
5718 #define MOUNT_TIME 5 /* seconds */
5719
5720 static int
5721 get_one_dataset(zfs_handle_t *zhp, void *data)
5722 {
5723 static char *spin[] = { "-", "\\", "|", "/" };
5724 static int spinval = 0;
5725 static int spincheck = 0;
5726 static time_t last_spin_time = (time_t)0;
5727 get_all_cb_t *cbp = data;
5728 zfs_type_t type = zfs_get_type(zhp);
5729
5730 if (cbp->cb_verbose) {
5731 if (--spincheck < 0) {
5732 time_t now = time(NULL);
5733 if (last_spin_time + SPINNER_TIME < now) {
5734 update_progress(spin[spinval++ % 4]);
5735 last_spin_time = now;
5736 }
5737 spincheck = CHECK_SPINNER;
5738 }
5739 }
5740
5741 /*
5742 * Iterate over any nested datasets.
5743 */
5744 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5745 zfs_close(zhp);
5746 return (1);
5747 }
5748
5749 /*
5750 * Skip any datasets whose type does not match.
5751 */
5752 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5753 zfs_close(zhp);
5754 return (0);
5755 }
5756 libzfs_add_handle(cbp, zhp);
5757 assert(cbp->cb_used <= cbp->cb_alloc);
5758
5759 return (0);
5760 }
5761
5762 static void
5763 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5764 {
5765 get_all_cb_t cb = { 0 };
5766 cb.cb_verbose = verbose;
5767 cb.cb_getone = get_one_dataset;
5768
5769 if (verbose)
5770 set_progress_header(gettext("Reading ZFS config"));
5771 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5772
5773 *dslist = cb.cb_handles;
5774 *count = cb.cb_used;
5775
5776 if (verbose)
5777 finish_progress(gettext("done."));
5778 }
5779
5780 /*
5781 * Generic callback for sharing or mounting filesystems. Because the code is so
5782 * similar, we have a common function with an extra parameter to determine which
5783 * mode we are using.
5784 */
5785 #define OP_SHARE 0x1
5786 #define OP_MOUNT 0x2
5787
5788 /*
5789 * Share or mount a dataset.
5790 */
5791 static int
5792 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5793 boolean_t explicit, const char *options)
5794 {
5795 char mountpoint[ZFS_MAXPROPLEN];
5796 char shareopts[ZFS_MAXPROPLEN];
5797 char smbshareopts[ZFS_MAXPROPLEN];
5798 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5799 struct mnttab mnt;
5800 uint64_t zoned, canmount;
5801 boolean_t shared_nfs, shared_smb;
5802
5803 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
5804
5805 /*
5806 * Check to make sure we can mount/share this dataset. If we
5807 * are in the global zone and the filesystem is exported to a
5808 * local zone, or if we are in a local zone and the
5809 * filesystem is not exported, then it is an error.
5810 */
5811 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
5812
5813 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5814 if (!explicit)
5815 return (0);
5816
5817 (void) fprintf(stderr, gettext("cannot %s '%s': "
5818 "dataset is exported to a local zone\n"), cmdname,
5819 zfs_get_name(zhp));
5820 return (1);
5821
5822 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5823 if (!explicit)
5824 return (0);
5825
5826 (void) fprintf(stderr, gettext("cannot %s '%s': "
5827 "permission denied\n"), cmdname,
5828 zfs_get_name(zhp));
5829 return (1);
5830 }
5831
5832 /*
5833 * Ignore any filesystems which don't apply to us. This
5834 * includes those with a legacy mountpoint, or those with
5835 * legacy share options.
5836 */
5837 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5838 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5839 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5840 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5841 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5842 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5843
5844 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5845 strcmp(smbshareopts, "off") == 0) {
5846 if (!explicit)
5847 return (0);
5848
5849 (void) fprintf(stderr, gettext("cannot share '%s': "
5850 "legacy share\n"), zfs_get_name(zhp));
5851 (void) fprintf(stderr, gettext("use share(1M) to "
5852 "share this filesystem, or set "
5853 "sharenfs property on\n"));
5854 return (1);
5855 }
5856
5857 /*
5858 * We cannot share or mount legacy filesystems. If the
5859 * shareopts is non-legacy but the mountpoint is legacy, we
5860 * treat it as a legacy share.
5861 */
5862 if (strcmp(mountpoint, "legacy") == 0) {
5863 if (!explicit)
5864 return (0);
5865
5866 (void) fprintf(stderr, gettext("cannot %s '%s': "
5867 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5868 (void) fprintf(stderr, gettext("use %s(1M) to "
5869 "%s this filesystem\n"), cmdname, cmdname);
5870 return (1);
5871 }
5872
5873 if (strcmp(mountpoint, "none") == 0) {
5874 if (!explicit)
5875 return (0);
5876
5877 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5878 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5879 return (1);
5880 }
5881
5882 /*
5883 * canmount explicit outcome
5884 * on no pass through
5885 * on yes pass through
5886 * off no return 0
5887 * off yes display error, return 1
5888 * noauto no return 0
5889 * noauto yes pass through
5890 */
5891 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5892 if (canmount == ZFS_CANMOUNT_OFF) {
5893 if (!explicit)
5894 return (0);
5895
5896 (void) fprintf(stderr, gettext("cannot %s '%s': "
5897 "'canmount' property is set to 'off'\n"), cmdname,
5898 zfs_get_name(zhp));
5899 return (1);
5900 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5901 return (0);
5902 }
5903
5904 /*
5905 * If this filesystem is inconsistent and has a receive resume
5906 * token, we can not mount it.
5907 */
5908 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
5909 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
5910 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
5911 if (!explicit)
5912 return (0);
5913
5914 (void) fprintf(stderr, gettext("cannot %s '%s': "
5915 "Contains partially-completed state from "
5916 "\"zfs receive -r\", which can be resumed with "
5917 "\"zfs send -t\"\n"),
5918 cmdname, zfs_get_name(zhp));
5919 return (1);
5920 }
5921
5922 /*
5923 * At this point, we have verified that the mountpoint and/or
5924 * shareopts are appropriate for auto management. If the
5925 * filesystem is already mounted or shared, return (failing
5926 * for explicit requests); otherwise mount or share the
5927 * filesystem.
5928 */
5929 switch (op) {
5930 case OP_SHARE:
5931
5932 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5933 shared_smb = zfs_is_shared_smb(zhp, NULL);
5934
5935 if ((shared_nfs && shared_smb) ||
5936 ((shared_nfs && strcmp(shareopts, "on") == 0) &&
5937 (strcmp(smbshareopts, "off") == 0)) ||
5938 ((shared_smb && strcmp(smbshareopts, "on") == 0) &&
5939 (strcmp(shareopts, "off") == 0))) {
5940 if (!explicit)
5941 return (0);
5942
5943 (void) fprintf(stderr, gettext("cannot share "
5944 "'%s': filesystem already shared\n"),
5945 zfs_get_name(zhp));
5946 return (1);
5947 }
5948
5949 if (!zfs_is_mounted(zhp, NULL) &&
5950 zfs_mount(zhp, NULL, 0) != 0)
5951 return (1);
5952
5953 if (protocol == NULL) {
5954 if (zfs_shareall(zhp) != 0)
5955 return (1);
5956 } else if (strcmp(protocol, "nfs") == 0) {
5957 if (zfs_share_nfs(zhp))
5958 return (1);
5959 } else if (strcmp(protocol, "smb") == 0) {
5960 if (zfs_share_smb(zhp))
5961 return (1);
5962 } else {
5963 (void) fprintf(stderr, gettext("cannot share "
5964 "'%s': invalid share type '%s' "
5965 "specified\n"),
5966 zfs_get_name(zhp), protocol);
5967 return (1);
5968 }
5969
5970 break;
5971
5972 case OP_MOUNT:
5973 if (options == NULL)
5974 mnt.mnt_mntopts = "";
5975 else
5976 mnt.mnt_mntopts = (char *)options;
5977
5978 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5979 zfs_is_mounted(zhp, NULL)) {
5980 if (!explicit)
5981 return (0);
5982
5983 (void) fprintf(stderr, gettext("cannot mount "
5984 "'%s': filesystem already mounted\n"),
5985 zfs_get_name(zhp));
5986 return (1);
5987 }
5988
5989 if (zfs_mount(zhp, options, flags) != 0)
5990 return (1);
5991 break;
5992 }
5993
5994 return (0);
5995 }
5996
5997 /*
5998 * Reports progress in the form "(current/total)". Not thread-safe.
5999 */
6000 static void
6001 report_mount_progress(int current, int total)
6002 {
6003 static time_t last_progress_time = 0;
6004 time_t now = time(NULL);
6005 char info[32];
6006
6007 /* report 1..n instead of 0..n-1 */
6008 ++current;
6009
6010 /* display header if we're here for the first time */
6011 if (current == 1) {
6012 set_progress_header(gettext("Mounting ZFS filesystems"));
6013 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6014 /* too soon to report again */
6015 return;
6016 }
6017
6018 last_progress_time = now;
6019
6020 (void) sprintf(info, "(%d/%d)", current, total);
6021
6022 if (current == total)
6023 finish_progress(info);
6024 else
6025 update_progress(info);
6026 }
6027
6028 static void
6029 append_options(char *mntopts, char *newopts)
6030 {
6031 int len = strlen(mntopts);
6032
6033 /* original length plus new string to append plus 1 for the comma */
6034 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6035 (void) fprintf(stderr, gettext("the opts argument for "
6036 "'%s' option is too long (more than %d chars)\n"),
6037 "-o", MNT_LINE_MAX);
6038 usage(B_FALSE);
6039 }
6040
6041 if (*mntopts)
6042 mntopts[len++] = ',';
6043
6044 (void) strcpy(&mntopts[len], newopts);
6045 }
6046
6047 static int
6048 share_mount(int op, int argc, char **argv)
6049 {
6050 int do_all = 0;
6051 boolean_t verbose = B_FALSE;
6052 int c, ret = 0;
6053 char *options = NULL;
6054 int flags = 0;
6055
6056 /* check options */
6057 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
6058 != -1) {
6059 switch (c) {
6060 case 'a':
6061 do_all = 1;
6062 break;
6063 case 'v':
6064 verbose = B_TRUE;
6065 break;
6066 case 'o':
6067 if (*optarg == '\0') {
6068 (void) fprintf(stderr, gettext("empty mount "
6069 "options (-o) specified\n"));
6070 usage(B_FALSE);
6071 }
6072
6073 if (options == NULL)
6074 options = safe_malloc(MNT_LINE_MAX + 1);
6075
6076 /* option validation is done later */
6077 append_options(options, optarg);
6078 break;
6079 case 'O':
6080 flags |= MS_OVERLAY;
6081 break;
6082 case ':':
6083 (void) fprintf(stderr, gettext("missing argument for "
6084 "'%c' option\n"), optopt);
6085 usage(B_FALSE);
6086 break;
6087 case '?':
6088 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6089 optopt);
6090 usage(B_FALSE);
6091 }
6092 }
6093
6094 argc -= optind;
6095 argv += optind;
6096
6097 /* check number of arguments */
6098 if (do_all) {
6099 zfs_handle_t **dslist = NULL;
6100 size_t i, count = 0;
6101 char *protocol = NULL;
6102
6103 if (op == OP_SHARE && argc > 0) {
6104 if (strcmp(argv[0], "nfs") != 0 &&
6105 strcmp(argv[0], "smb") != 0) {
6106 (void) fprintf(stderr, gettext("share type "
6107 "must be 'nfs' or 'smb'\n"));
6108 usage(B_FALSE);
6109 }
6110 protocol = argv[0];
6111 argc--;
6112 argv++;
6113 }
6114
6115 if (argc != 0) {
6116 (void) fprintf(stderr, gettext("too many arguments\n"));
6117 usage(B_FALSE);
6118 }
6119
6120 start_progress_timer();
6121 get_all_datasets(&dslist, &count, verbose);
6122
6123 if (count == 0)
6124 return (0);
6125
6126 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
6127
6128 for (i = 0; i < count; i++) {
6129 if (verbose)
6130 report_mount_progress(i, count);
6131
6132 if (share_mount_one(dslist[i], op, flags, protocol,
6133 B_FALSE, options) != 0)
6134 ret = 1;
6135 zfs_close(dslist[i]);
6136 }
6137
6138 free(dslist);
6139 } else if (argc == 0) {
6140 struct mnttab entry;
6141
6142 if ((op == OP_SHARE) || (options != NULL)) {
6143 (void) fprintf(stderr, gettext("missing filesystem "
6144 "argument (specify -a for all)\n"));
6145 usage(B_FALSE);
6146 }
6147
6148 /*
6149 * When mount is given no arguments, go through
6150 * /proc/self/mounts and display any active ZFS mounts.
6151 * We hide any snapshots, since they are controlled
6152 * automatically.
6153 */
6154
6155 /* Reopen MNTTAB to prevent reading stale data from open file */
6156 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6157 return (ENOENT);
6158
6159 while (getmntent(mnttab_file, &entry) == 0) {
6160 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6161 strchr(entry.mnt_special, '@') != NULL)
6162 continue;
6163
6164 (void) printf("%-30s %s\n", entry.mnt_special,
6165 entry.mnt_mountp);
6166 }
6167
6168 } else {
6169 zfs_handle_t *zhp;
6170
6171 if (argc > 1) {
6172 (void) fprintf(stderr,
6173 gettext("too many arguments\n"));
6174 usage(B_FALSE);
6175 }
6176
6177 if ((zhp = zfs_open(g_zfs, argv[0],
6178 ZFS_TYPE_FILESYSTEM)) == NULL) {
6179 ret = 1;
6180 } else {
6181 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6182 options);
6183 zfs_close(zhp);
6184 }
6185 }
6186
6187 return (ret);
6188 }
6189
6190 /*
6191 * zfs mount -a [nfs]
6192 * zfs mount filesystem
6193 *
6194 * Mount all filesystems, or mount the given filesystem.
6195 */
6196 static int
6197 zfs_do_mount(int argc, char **argv)
6198 {
6199 return (share_mount(OP_MOUNT, argc, argv));
6200 }
6201
6202 /*
6203 * zfs share -a [nfs | smb]
6204 * zfs share filesystem
6205 *
6206 * Share all filesystems, or share the given filesystem.
6207 */
6208 static int
6209 zfs_do_share(int argc, char **argv)
6210 {
6211 return (share_mount(OP_SHARE, argc, argv));
6212 }
6213
6214 typedef struct unshare_unmount_node {
6215 zfs_handle_t *un_zhp;
6216 char *un_mountp;
6217 uu_avl_node_t un_avlnode;
6218 } unshare_unmount_node_t;
6219
6220 /* ARGSUSED */
6221 static int
6222 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6223 {
6224 const unshare_unmount_node_t *l = larg;
6225 const unshare_unmount_node_t *r = rarg;
6226
6227 return (strcmp(l->un_mountp, r->un_mountp));
6228 }
6229
6230 /*
6231 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6232 * absolute path, find the entry /proc/self/mounts, verify that its a
6233 * ZFS filesystems, and unmount it appropriately.
6234 */
6235 static int
6236 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6237 {
6238 zfs_handle_t *zhp;
6239 int ret = 0;
6240 struct stat64 statbuf;
6241 struct extmnttab entry;
6242 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6243 ino_t path_inode;
6244
6245 /*
6246 * Search for the path in /proc/self/mounts. Rather than looking for the
6247 * specific path, which can be fooled by non-standard paths (i.e. ".."
6248 * or "//"), we stat() the path and search for the corresponding
6249 * (major,minor) device pair.
6250 */
6251 if (stat64(path, &statbuf) != 0) {
6252 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6253 cmdname, path, strerror(errno));
6254 return (1);
6255 }
6256 path_inode = statbuf.st_ino;
6257
6258 /*
6259 * Search for the given (major,minor) pair in the mount table.
6260 */
6261
6262 /* Reopen MNTTAB to prevent reading stale data from open file */
6263 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6264 return (ENOENT);
6265
6266 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6267 if (entry.mnt_major == major(statbuf.st_dev) &&
6268 entry.mnt_minor == minor(statbuf.st_dev))
6269 break;
6270 }
6271 if (ret != 0) {
6272 if (op == OP_SHARE) {
6273 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6274 "currently mounted\n"), cmdname, path);
6275 return (1);
6276 }
6277 (void) fprintf(stderr, gettext("warning: %s not in"
6278 "/proc/self/mounts\n"), path);
6279 if ((ret = umount2(path, flags)) != 0)
6280 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6281 strerror(errno));
6282 return (ret != 0);
6283 }
6284
6285 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6286 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6287 "filesystem\n"), cmdname, path);
6288 return (1);
6289 }
6290
6291 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6292 ZFS_TYPE_FILESYSTEM)) == NULL)
6293 return (1);
6294
6295 ret = 1;
6296 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6297 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6298 cmdname, path, strerror(errno));
6299 goto out;
6300 } else if (statbuf.st_ino != path_inode) {
6301 (void) fprintf(stderr, gettext("cannot "
6302 "%s '%s': not a mountpoint\n"), cmdname, path);
6303 goto out;
6304 }
6305
6306 if (op == OP_SHARE) {
6307 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6308 char smbshare_prop[ZFS_MAXPROPLEN];
6309
6310 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6311 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6312 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6313 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6314
6315 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6316 strcmp(smbshare_prop, "off") == 0) {
6317 (void) fprintf(stderr, gettext("cannot unshare "
6318 "'%s': legacy share\n"), path);
6319 (void) fprintf(stderr, gettext("use exportfs(8) "
6320 "or smbcontrol(1) to unshare this filesystem\n"));
6321 } else if (!zfs_is_shared(zhp)) {
6322 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6323 "not currently shared\n"), path);
6324 } else {
6325 ret = zfs_unshareall_bypath(zhp, path);
6326 }
6327 } else {
6328 char mtpt_prop[ZFS_MAXPROPLEN];
6329
6330 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6331 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6332
6333 if (is_manual) {
6334 ret = zfs_unmount(zhp, NULL, flags);
6335 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6336 (void) fprintf(stderr, gettext("cannot unmount "
6337 "'%s': legacy mountpoint\n"),
6338 zfs_get_name(zhp));
6339 (void) fprintf(stderr, gettext("use umount(8) "
6340 "to unmount this filesystem\n"));
6341 } else {
6342 ret = zfs_unmountall(zhp, flags);
6343 }
6344 }
6345
6346 out:
6347 zfs_close(zhp);
6348
6349 return (ret != 0);
6350 }
6351
6352 /*
6353 * Generic callback for unsharing or unmounting a filesystem.
6354 */
6355 static int
6356 unshare_unmount(int op, int argc, char **argv)
6357 {
6358 int do_all = 0;
6359 int flags = 0;
6360 int ret = 0;
6361 int c;
6362 zfs_handle_t *zhp;
6363 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6364 char sharesmb[ZFS_MAXPROPLEN];
6365
6366 /* check options */
6367 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
6368 switch (c) {
6369 case 'a':
6370 do_all = 1;
6371 break;
6372 case 'f':
6373 flags = MS_FORCE;
6374 break;
6375 case '?':
6376 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6377 optopt);
6378 usage(B_FALSE);
6379 }
6380 }
6381
6382 argc -= optind;
6383 argv += optind;
6384
6385 if (do_all) {
6386 /*
6387 * We could make use of zfs_for_each() to walk all datasets in
6388 * the system, but this would be very inefficient, especially
6389 * since we would have to linearly search /proc/self/mounts for
6390 * each one. Instead, do one pass through /proc/self/mounts
6391 * looking for zfs entries and call zfs_unmount() for each one.
6392 *
6393 * Things get a little tricky if the administrator has created
6394 * mountpoints beneath other ZFS filesystems. In this case, we
6395 * have to unmount the deepest filesystems first. To accomplish
6396 * this, we place all the mountpoints in an AVL tree sorted by
6397 * the special type (dataset name), and walk the result in
6398 * reverse to make sure to get any snapshots first.
6399 */
6400 struct mnttab entry;
6401 uu_avl_pool_t *pool;
6402 uu_avl_t *tree = NULL;
6403 unshare_unmount_node_t *node;
6404 uu_avl_index_t idx;
6405 uu_avl_walk_t *walk;
6406
6407 if (argc != 0) {
6408 (void) fprintf(stderr, gettext("too many arguments\n"));
6409 usage(B_FALSE);
6410 }
6411
6412 if (((pool = uu_avl_pool_create("unmount_pool",
6413 sizeof (unshare_unmount_node_t),
6414 offsetof(unshare_unmount_node_t, un_avlnode),
6415 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6416 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6417 nomem();
6418
6419 /* Reopen MNTTAB to prevent reading stale data from open file */
6420 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6421 return (ENOENT);
6422
6423 while (getmntent(mnttab_file, &entry) == 0) {
6424
6425 /* ignore non-ZFS entries */
6426 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6427 continue;
6428
6429 /* ignore snapshots */
6430 if (strchr(entry.mnt_special, '@') != NULL)
6431 continue;
6432
6433 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6434 ZFS_TYPE_FILESYSTEM)) == NULL) {
6435 ret = 1;
6436 continue;
6437 }
6438
6439 switch (op) {
6440 case OP_SHARE:
6441 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6442 nfs_mnt_prop,
6443 sizeof (nfs_mnt_prop),
6444 NULL, NULL, 0, B_FALSE) == 0);
6445 if (strcmp(nfs_mnt_prop, "off") != 0)
6446 break;
6447 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6448 nfs_mnt_prop,
6449 sizeof (nfs_mnt_prop),
6450 NULL, NULL, 0, B_FALSE) == 0);
6451 if (strcmp(nfs_mnt_prop, "off") == 0)
6452 continue;
6453 break;
6454 case OP_MOUNT:
6455 /* Ignore legacy mounts */
6456 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6457 nfs_mnt_prop,
6458 sizeof (nfs_mnt_prop),
6459 NULL, NULL, 0, B_FALSE) == 0);
6460 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6461 continue;
6462 /* Ignore canmount=noauto mounts */
6463 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6464 ZFS_CANMOUNT_NOAUTO)
6465 continue;
6466 default:
6467 break;
6468 }
6469
6470 node = safe_malloc(sizeof (unshare_unmount_node_t));
6471 node->un_zhp = zhp;
6472 node->un_mountp = safe_strdup(entry.mnt_mountp);
6473
6474 uu_avl_node_init(node, &node->un_avlnode, pool);
6475
6476 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6477 uu_avl_insert(tree, node, idx);
6478 } else {
6479 zfs_close(node->un_zhp);
6480 free(node->un_mountp);
6481 free(node);
6482 }
6483 }
6484
6485 /*
6486 * Walk the AVL tree in reverse, unmounting each filesystem and
6487 * removing it from the AVL tree in the process.
6488 */
6489 if ((walk = uu_avl_walk_start(tree,
6490 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6491 nomem();
6492
6493 while ((node = uu_avl_walk_next(walk)) != NULL) {
6494 uu_avl_remove(tree, node);
6495
6496 switch (op) {
6497 case OP_SHARE:
6498 if (zfs_unshareall_bypath(node->un_zhp,
6499 node->un_mountp) != 0)
6500 ret = 1;
6501 break;
6502
6503 case OP_MOUNT:
6504 if (zfs_unmount(node->un_zhp,
6505 node->un_mountp, flags) != 0)
6506 ret = 1;
6507 break;
6508 }
6509
6510 zfs_close(node->un_zhp);
6511 free(node->un_mountp);
6512 free(node);
6513 }
6514
6515 uu_avl_walk_end(walk);
6516 uu_avl_destroy(tree);
6517 uu_avl_pool_destroy(pool);
6518
6519 } else {
6520 if (argc != 1) {
6521 if (argc == 0)
6522 (void) fprintf(stderr,
6523 gettext("missing filesystem argument\n"));
6524 else
6525 (void) fprintf(stderr,
6526 gettext("too many arguments\n"));
6527 usage(B_FALSE);
6528 }
6529
6530 /*
6531 * We have an argument, but it may be a full path or a ZFS
6532 * filesystem. Pass full paths off to unmount_path() (shared by
6533 * manual_unmount), otherwise open the filesystem and pass to
6534 * zfs_unmount().
6535 */
6536 if (argv[0][0] == '/')
6537 return (unshare_unmount_path(op, argv[0],
6538 flags, B_FALSE));
6539
6540 if ((zhp = zfs_open(g_zfs, argv[0],
6541 ZFS_TYPE_FILESYSTEM)) == NULL)
6542 return (1);
6543
6544 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6545 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6546 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6547 NULL, 0, B_FALSE) == 0);
6548
6549 switch (op) {
6550 case OP_SHARE:
6551 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6552 nfs_mnt_prop,
6553 sizeof (nfs_mnt_prop),
6554 NULL, NULL, 0, B_FALSE) == 0);
6555 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6556 sharesmb, sizeof (sharesmb), NULL, NULL,
6557 0, B_FALSE) == 0);
6558
6559 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6560 strcmp(sharesmb, "off") == 0) {
6561 (void) fprintf(stderr, gettext("cannot "
6562 "unshare '%s': legacy share\n"),
6563 zfs_get_name(zhp));
6564 (void) fprintf(stderr, gettext("use "
6565 "unshare(1M) to unshare this "
6566 "filesystem\n"));
6567 ret = 1;
6568 } else if (!zfs_is_shared(zhp)) {
6569 (void) fprintf(stderr, gettext("cannot "
6570 "unshare '%s': not currently "
6571 "shared\n"), zfs_get_name(zhp));
6572 ret = 1;
6573 } else if (zfs_unshareall(zhp) != 0) {
6574 ret = 1;
6575 }
6576 break;
6577
6578 case OP_MOUNT:
6579 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6580 (void) fprintf(stderr, gettext("cannot "
6581 "unmount '%s': legacy "
6582 "mountpoint\n"), zfs_get_name(zhp));
6583 (void) fprintf(stderr, gettext("use "
6584 "umount(1M) to unmount this "
6585 "filesystem\n"));
6586 ret = 1;
6587 } else if (!zfs_is_mounted(zhp, NULL)) {
6588 (void) fprintf(stderr, gettext("cannot "
6589 "unmount '%s': not currently "
6590 "mounted\n"),
6591 zfs_get_name(zhp));
6592 ret = 1;
6593 } else if (zfs_unmountall(zhp, flags) != 0) {
6594 ret = 1;
6595 }
6596 break;
6597 }
6598
6599 zfs_close(zhp);
6600 }
6601
6602 return (ret);
6603 }
6604
6605 /*
6606 * zfs unmount -a
6607 * zfs unmount filesystem
6608 *
6609 * Unmount all filesystems, or a specific ZFS filesystem.
6610 */
6611 static int
6612 zfs_do_unmount(int argc, char **argv)
6613 {
6614 return (unshare_unmount(OP_MOUNT, argc, argv));
6615 }
6616
6617 /*
6618 * zfs unshare -a
6619 * zfs unshare filesystem
6620 *
6621 * Unshare all filesystems, or a specific ZFS filesystem.
6622 */
6623 static int
6624 zfs_do_unshare(int argc, char **argv)
6625 {
6626 return (unshare_unmount(OP_SHARE, argc, argv));
6627 }
6628
6629 static int
6630 find_command_idx(char *command, int *idx)
6631 {
6632 int i;
6633
6634 for (i = 0; i < NCOMMAND; i++) {
6635 if (command_table[i].name == NULL)
6636 continue;
6637
6638 if (strcmp(command, command_table[i].name) == 0) {
6639 *idx = i;
6640 return (0);
6641 }
6642 }
6643 return (1);
6644 }
6645
6646 static int
6647 zfs_do_diff(int argc, char **argv)
6648 {
6649 zfs_handle_t *zhp;
6650 int flags = 0;
6651 char *tosnap = NULL;
6652 char *fromsnap = NULL;
6653 char *atp, *copy;
6654 int err = 0;
6655 int c;
6656
6657 while ((c = getopt(argc, argv, "FHt")) != -1) {
6658 switch (c) {
6659 case 'F':
6660 flags |= ZFS_DIFF_CLASSIFY;
6661 break;
6662 case 'H':
6663 flags |= ZFS_DIFF_PARSEABLE;
6664 break;
6665 case 't':
6666 flags |= ZFS_DIFF_TIMESTAMP;
6667 break;
6668 default:
6669 (void) fprintf(stderr,
6670 gettext("invalid option '%c'\n"), optopt);
6671 usage(B_FALSE);
6672 }
6673 }
6674
6675 argc -= optind;
6676 argv += optind;
6677
6678 if (argc < 1) {
6679 (void) fprintf(stderr,
6680 gettext("must provide at least one snapshot name\n"));
6681 usage(B_FALSE);
6682 }
6683
6684 if (argc > 2) {
6685 (void) fprintf(stderr, gettext("too many arguments\n"));
6686 usage(B_FALSE);
6687 }
6688
6689 fromsnap = argv[0];
6690 tosnap = (argc == 2) ? argv[1] : NULL;
6691
6692 copy = NULL;
6693 if (*fromsnap != '@')
6694 copy = strdup(fromsnap);
6695 else if (tosnap)
6696 copy = strdup(tosnap);
6697 if (copy == NULL)
6698 usage(B_FALSE);
6699
6700 if ((atp = strchr(copy, '@')))
6701 *atp = '\0';
6702
6703 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6704 return (1);
6705
6706 free(copy);
6707
6708 /*
6709 * Ignore SIGPIPE so that the library can give us
6710 * information on any failure
6711 */
6712 (void) sigignore(SIGPIPE);
6713
6714 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6715
6716 zfs_close(zhp);
6717
6718 return (err != 0);
6719 }
6720
6721 /*
6722 * zfs bookmark <fs@snap> <fs#bmark>
6723 *
6724 * Creates a bookmark with the given name from the given snapshot.
6725 */
6726 static int
6727 zfs_do_bookmark(int argc, char **argv)
6728 {
6729 char snapname[ZFS_MAX_DATASET_NAME_LEN];
6730 zfs_handle_t *zhp;
6731 nvlist_t *nvl;
6732 int ret = 0;
6733 int c;
6734
6735 /* check options */
6736 while ((c = getopt(argc, argv, "")) != -1) {
6737 switch (c) {
6738 case '?':
6739 (void) fprintf(stderr,
6740 gettext("invalid option '%c'\n"), optopt);
6741 goto usage;
6742 }
6743 }
6744
6745 argc -= optind;
6746 argv += optind;
6747
6748 /* check number of arguments */
6749 if (argc < 1) {
6750 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
6751 goto usage;
6752 }
6753 if (argc < 2) {
6754 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
6755 goto usage;
6756 }
6757
6758 if (strchr(argv[1], '#') == NULL) {
6759 (void) fprintf(stderr,
6760 gettext("invalid bookmark name '%s' -- "
6761 "must contain a '#'\n"), argv[1]);
6762 goto usage;
6763 }
6764
6765 if (argv[0][0] == '@') {
6766 /*
6767 * Snapshot name begins with @.
6768 * Default to same fs as bookmark.
6769 */
6770 (void) strncpy(snapname, argv[1], sizeof (snapname));
6771 *strchr(snapname, '#') = '\0';
6772 (void) strlcat(snapname, argv[0], sizeof (snapname));
6773 } else {
6774 (void) strlcpy(snapname, argv[0], sizeof (snapname));
6775 }
6776 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
6777 if (zhp == NULL)
6778 goto usage;
6779 zfs_close(zhp);
6780
6781
6782 nvl = fnvlist_alloc();
6783 fnvlist_add_string(nvl, argv[1], snapname);
6784 ret = lzc_bookmark(nvl, NULL);
6785 fnvlist_free(nvl);
6786
6787 if (ret != 0) {
6788 const char *err_msg;
6789 char errbuf[1024];
6790
6791 (void) snprintf(errbuf, sizeof (errbuf),
6792 dgettext(TEXT_DOMAIN,
6793 "cannot create bookmark '%s'"), argv[1]);
6794
6795 switch (ret) {
6796 case EXDEV:
6797 err_msg = "bookmark is in a different pool";
6798 break;
6799 case EEXIST:
6800 err_msg = "bookmark exists";
6801 break;
6802 case EINVAL:
6803 err_msg = "invalid argument";
6804 break;
6805 case ENOTSUP:
6806 err_msg = "bookmark feature not enabled";
6807 break;
6808 case ENOSPC:
6809 err_msg = "out of space";
6810 break;
6811 default:
6812 err_msg = "unknown error";
6813 break;
6814 }
6815 (void) fprintf(stderr, "%s: %s\n", errbuf,
6816 dgettext(TEXT_DOMAIN, err_msg));
6817 }
6818
6819 return (ret != 0);
6820
6821 usage:
6822 usage(B_FALSE);
6823 return (-1);
6824 }
6825
6826 int
6827 main(int argc, char **argv)
6828 {
6829 int ret = 0;
6830 int i = 0;
6831 char *cmdname;
6832
6833 (void) setlocale(LC_ALL, "");
6834 (void) textdomain(TEXT_DOMAIN);
6835
6836 dprintf_setup(&argc, argv);
6837
6838 opterr = 0;
6839
6840 /*
6841 * Make sure the user has specified some command.
6842 */
6843 if (argc < 2) {
6844 (void) fprintf(stderr, gettext("missing command\n"));
6845 usage(B_FALSE);
6846 }
6847
6848 cmdname = argv[1];
6849
6850 /*
6851 * The 'umount' command is an alias for 'unmount'
6852 */
6853 if (strcmp(cmdname, "umount") == 0)
6854 cmdname = "unmount";
6855
6856 /*
6857 * The 'recv' command is an alias for 'receive'
6858 */
6859 if (strcmp(cmdname, "recv") == 0)
6860 cmdname = "receive";
6861
6862 /*
6863 * The 'snap' command is an alias for 'snapshot'
6864 */
6865 if (strcmp(cmdname, "snap") == 0)
6866 cmdname = "snapshot";
6867
6868 /*
6869 * Special case '-?'
6870 */
6871 if ((strcmp(cmdname, "-?") == 0) ||
6872 (strcmp(cmdname, "--help") == 0))
6873 usage(B_TRUE);
6874
6875 if ((g_zfs = libzfs_init()) == NULL) {
6876 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
6877 return (1);
6878 }
6879
6880 mnttab_file = g_zfs->libzfs_mnttab;
6881
6882 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
6883
6884 libzfs_print_on_error(g_zfs, B_TRUE);
6885
6886 /*
6887 * Run the appropriate command.
6888 */
6889 libzfs_mnttab_cache(g_zfs, B_TRUE);
6890 if (find_command_idx(cmdname, &i) == 0) {
6891 current_command = &command_table[i];
6892 ret = command_table[i].func(argc - 1, argv + 1);
6893 } else if (strchr(cmdname, '=') != NULL) {
6894 verify(find_command_idx("set", &i) == 0);
6895 current_command = &command_table[i];
6896 ret = command_table[i].func(argc, argv);
6897 } else {
6898 (void) fprintf(stderr, gettext("unrecognized "
6899 "command '%s'\n"), cmdname);
6900 usage(B_FALSE);
6901 ret = 1;
6902 }
6903
6904 if (ret == 0 && log_history)
6905 (void) zpool_log_history(g_zfs, history_str);
6906
6907 libzfs_fini(g_zfs);
6908
6909 /*
6910 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
6911 * for the purposes of running ::findleaks.
6912 */
6913 if (getenv("ZFS_ABORT") != NULL) {
6914 (void) printf("dumping core by request\n");
6915 abort();
6916 }
6917
6918 return (ret);
6919 }
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