]> git.proxmox.com Git - mirror_zfs.git/blob - cmd/zfs/zfs_main.c
projects / mirror_zfs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Add support for user/group dnode accounting & quota
[mirror_zfs.git] / cmd / zfs / zfs_main.c
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 USFIELD_OBJUSED,
2228 USFIELD_OBJQUOTA
2229 };
2230 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA",
2231 "OBJUSED", "OBJQUOTA" };
2232 static char *us_field_names[] = { "type", "name", "used", "quota",
2233 "objused", "objquota" };
2234 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2235
2236 #define USTYPE_PSX_GRP (1 << 0)
2237 #define USTYPE_PSX_USR (1 << 1)
2238 #define USTYPE_SMB_GRP (1 << 2)
2239 #define USTYPE_SMB_USR (1 << 3)
2240 #define USTYPE_ALL \
2241 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2242
2243 static int us_type_bits[] = {
2244 USTYPE_PSX_GRP,
2245 USTYPE_PSX_USR,
2246 USTYPE_SMB_GRP,
2247 USTYPE_SMB_USR,
2248 USTYPE_ALL
2249 };
2250 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2251 "smbuser", "all" };
2252
2253 typedef struct us_node {
2254 nvlist_t *usn_nvl;
2255 uu_avl_node_t usn_avlnode;
2256 uu_list_node_t usn_listnode;
2257 } us_node_t;
2258
2259 typedef struct us_cbdata {
2260 nvlist_t **cb_nvlp;
2261 uu_avl_pool_t *cb_avl_pool;
2262 uu_avl_t *cb_avl;
2263 boolean_t cb_numname;
2264 boolean_t cb_nicenum;
2265 boolean_t cb_sid2posix;
2266 zfs_userquota_prop_t cb_prop;
2267 zfs_sort_column_t *cb_sortcol;
2268 size_t cb_width[USFIELD_LAST];
2269 } us_cbdata_t;
2270
2271 static boolean_t us_populated = B_FALSE;
2272
2273 typedef struct {
2274 zfs_sort_column_t *si_sortcol;
2275 boolean_t si_numname;
2276 } us_sort_info_t;
2277
2278 static int
2279 us_field_index(char *field)
2280 {
2281 int i;
2282
2283 for (i = 0; i < USFIELD_LAST; i++) {
2284 if (strcmp(field, us_field_names[i]) == 0)
2285 return (i);
2286 }
2287
2288 return (-1);
2289 }
2290
2291 static int
2292 us_compare(const void *larg, const void *rarg, void *unused)
2293 {
2294 const us_node_t *l = larg;
2295 const us_node_t *r = rarg;
2296 us_sort_info_t *si = (us_sort_info_t *)unused;
2297 zfs_sort_column_t *sortcol = si->si_sortcol;
2298 boolean_t numname = si->si_numname;
2299 nvlist_t *lnvl = l->usn_nvl;
2300 nvlist_t *rnvl = r->usn_nvl;
2301 int rc = 0;
2302 boolean_t lvb, rvb;
2303
2304 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2305 char *lvstr = "";
2306 char *rvstr = "";
2307 uint32_t lv32 = 0;
2308 uint32_t rv32 = 0;
2309 uint64_t lv64 = 0;
2310 uint64_t rv64 = 0;
2311 zfs_prop_t prop = sortcol->sc_prop;
2312 const char *propname = NULL;
2313 boolean_t reverse = sortcol->sc_reverse;
2314
2315 switch (prop) {
2316 case ZFS_PROP_TYPE:
2317 propname = "type";
2318 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2319 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2320 if (rv32 != lv32)
2321 rc = (rv32 < lv32) ? 1 : -1;
2322 break;
2323 case ZFS_PROP_NAME:
2324 propname = "name";
2325 if (numname) {
2326 compare_nums:
2327 (void) nvlist_lookup_uint64(lnvl, propname,
2328 &lv64);
2329 (void) nvlist_lookup_uint64(rnvl, propname,
2330 &rv64);
2331 if (rv64 != lv64)
2332 rc = (rv64 < lv64) ? 1 : -1;
2333 } else {
2334 if ((nvlist_lookup_string(lnvl, propname,
2335 &lvstr) == ENOENT) ||
2336 (nvlist_lookup_string(rnvl, propname,
2337 &rvstr) == ENOENT)) {
2338 goto compare_nums;
2339 }
2340 rc = strcmp(lvstr, rvstr);
2341 }
2342 break;
2343 case ZFS_PROP_USED:
2344 case ZFS_PROP_QUOTA:
2345 if (!us_populated)
2346 break;
2347 if (prop == ZFS_PROP_USED)
2348 propname = "used";
2349 else
2350 propname = "quota";
2351 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2352 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2353 if (rv64 != lv64)
2354 rc = (rv64 < lv64) ? 1 : -1;
2355 break;
2356 default:
2357 break;
2358 }
2359
2360 if (rc != 0) {
2361 if (rc < 0)
2362 return (reverse ? 1 : -1);
2363 else
2364 return (reverse ? -1 : 1);
2365 }
2366 }
2367
2368 /*
2369 * If entries still seem to be the same, check if they are of the same
2370 * type (smbentity is added only if we are doing SID to POSIX ID
2371 * translation where we can have duplicate type/name combinations).
2372 */
2373 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2374 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2375 lvb != rvb)
2376 return (lvb < rvb ? -1 : 1);
2377
2378 return (0);
2379 }
2380
2381 static boolean_t
2382 zfs_prop_is_user(unsigned p)
2383 {
2384 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA ||
2385 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA);
2386 }
2387
2388 static boolean_t
2389 zfs_prop_is_group(unsigned p)
2390 {
2391 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA ||
2392 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA);
2393 }
2394
2395 static inline const char *
2396 us_type2str(unsigned field_type)
2397 {
2398 switch (field_type) {
2399 case USTYPE_PSX_USR:
2400 return ("POSIX User");
2401 case USTYPE_PSX_GRP:
2402 return ("POSIX Group");
2403 case USTYPE_SMB_USR:
2404 return ("SMB User");
2405 case USTYPE_SMB_GRP:
2406 return ("SMB Group");
2407 default:
2408 return ("Undefined");
2409 }
2410 }
2411
2412 static int
2413 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2414 {
2415 us_cbdata_t *cb = (us_cbdata_t *)arg;
2416 zfs_userquota_prop_t prop = cb->cb_prop;
2417 char *name = NULL;
2418 char *propname;
2419 char sizebuf[32];
2420 us_node_t *node;
2421 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2422 uu_avl_t *avl = cb->cb_avl;
2423 uu_avl_index_t idx;
2424 nvlist_t *props;
2425 us_node_t *n;
2426 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2427 unsigned type = 0;
2428 const char *typestr;
2429 size_t namelen;
2430 size_t typelen;
2431 size_t sizelen;
2432 int typeidx, nameidx, sizeidx;
2433 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2434 boolean_t smbentity = B_FALSE;
2435
2436 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2437 nomem();
2438 node = safe_malloc(sizeof (us_node_t));
2439 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2440 node->usn_nvl = props;
2441
2442 if (domain != NULL && domain[0] != '\0') {
2443 #ifdef HAVE_IDMAP
2444 /* SMB */
2445 char sid[MAXNAMELEN + 32];
2446 uid_t id;
2447 uint64_t classes;
2448 int err;
2449 directory_error_t e;
2450
2451 smbentity = B_TRUE;
2452
2453 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2454
2455 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2456 type = USTYPE_SMB_GRP;
2457 err = sid_to_id(sid, B_FALSE, &id);
2458 } else {
2459 type = USTYPE_SMB_USR;
2460 err = sid_to_id(sid, B_TRUE, &id);
2461 }
2462
2463 if (err == 0) {
2464 rid = id;
2465 if (!cb->cb_sid2posix) {
2466 e = directory_name_from_sid(NULL, sid, &name,
2467 &classes);
2468 if (e != NULL)
2469 directory_error_free(e);
2470 if (name == NULL)
2471 name = sid;
2472 }
2473 }
2474 #else
2475 nvlist_free(props);
2476 free(node);
2477
2478 return (-1);
2479 #endif /* HAVE_IDMAP */
2480 }
2481
2482 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2483 /* POSIX or -i */
2484 if (zfs_prop_is_group(prop)) {
2485 type = USTYPE_PSX_GRP;
2486 if (!cb->cb_numname) {
2487 struct group *g;
2488
2489 if ((g = getgrgid(rid)) != NULL)
2490 name = g->gr_name;
2491 }
2492 } else {
2493 type = USTYPE_PSX_USR;
2494 if (!cb->cb_numname) {
2495 struct passwd *p;
2496
2497 if ((p = getpwuid(rid)) != NULL)
2498 name = p->pw_name;
2499 }
2500 }
2501 }
2502
2503 /*
2504 * Make sure that the type/name combination is unique when doing
2505 * SID to POSIX ID translation (hence changing the type from SMB to
2506 * POSIX).
2507 */
2508 if (cb->cb_sid2posix &&
2509 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2510 nomem();
2511
2512 /* Calculate/update width of TYPE field */
2513 typestr = us_type2str(type);
2514 typelen = strlen(gettext(typestr));
2515 typeidx = us_field_index("type");
2516 if (typelen > cb->cb_width[typeidx])
2517 cb->cb_width[typeidx] = typelen;
2518 if (nvlist_add_uint32(props, "type", type) != 0)
2519 nomem();
2520
2521 /* Calculate/update width of NAME field */
2522 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2523 if (nvlist_add_uint64(props, "name", rid) != 0)
2524 nomem();
2525 namelen = snprintf(NULL, 0, "%u", rid);
2526 } else {
2527 if (nvlist_add_string(props, "name", name) != 0)
2528 nomem();
2529 namelen = strlen(name);
2530 }
2531 nameidx = us_field_index("name");
2532 if (namelen > cb->cb_width[nameidx])
2533 cb->cb_width[nameidx] = namelen;
2534
2535 /*
2536 * Check if this type/name combination is in the list and update it;
2537 * otherwise add new node to the list.
2538 */
2539 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2540 uu_avl_insert(avl, node, idx);
2541 } else {
2542 nvlist_free(props);
2543 free(node);
2544 node = n;
2545 props = node->usn_nvl;
2546 }
2547
2548 /* Calculate/update width of USED/QUOTA fields */
2549 if (cb->cb_nicenum)
2550 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2551 else
2552 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
2553 (u_longlong_t)space);
2554 sizelen = strlen(sizebuf);
2555 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2556 propname = "used";
2557 if (!nvlist_exists(props, "quota"))
2558 (void) nvlist_add_uint64(props, "quota", 0);
2559 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA) {
2560 propname = "quota";
2561 if (!nvlist_exists(props, "used"))
2562 (void) nvlist_add_uint64(props, "used", 0);
2563 } else if (prop == ZFS_PROP_USEROBJUSED ||
2564 prop == ZFS_PROP_GROUPOBJUSED) {
2565 propname = "objused";
2566 if (!nvlist_exists(props, "objquota"))
2567 (void) nvlist_add_uint64(props, "objquota", 0);
2568 } else if (prop == ZFS_PROP_USEROBJQUOTA ||
2569 prop == ZFS_PROP_GROUPOBJQUOTA) {
2570 propname = "objquota";
2571 if (!nvlist_exists(props, "objused"))
2572 (void) nvlist_add_uint64(props, "objused", 0);
2573 } else {
2574 return (-1);
2575 }
2576 sizeidx = us_field_index(propname);
2577 if (sizelen > cb->cb_width[sizeidx])
2578 cb->cb_width[sizeidx] = sizelen;
2579
2580 if (nvlist_add_uint64(props, propname, space) != 0)
2581 nomem();
2582
2583 return (0);
2584 }
2585
2586 static void
2587 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2588 size_t *width, us_node_t *node)
2589 {
2590 nvlist_t *nvl = node->usn_nvl;
2591 char valstr[MAXNAMELEN];
2592 boolean_t first = B_TRUE;
2593 int cfield = 0;
2594 int field;
2595 uint32_t ustype;
2596
2597 /* Check type */
2598 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2599 if (!(ustype & types))
2600 return;
2601
2602 while ((field = fields[cfield]) != USFIELD_LAST) {
2603 nvpair_t *nvp = NULL;
2604 data_type_t type;
2605 uint32_t val32;
2606 uint64_t val64;
2607 char *strval = "-";
2608
2609 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2610 if (strcmp(nvpair_name(nvp),
2611 us_field_names[field]) == 0)
2612 break;
2613 }
2614
2615 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp);
2616 switch (type) {
2617 case DATA_TYPE_UINT32:
2618 (void) nvpair_value_uint32(nvp, &val32);
2619 break;
2620 case DATA_TYPE_UINT64:
2621 (void) nvpair_value_uint64(nvp, &val64);
2622 break;
2623 case DATA_TYPE_STRING:
2624 (void) nvpair_value_string(nvp, &strval);
2625 break;
2626 case DATA_TYPE_UNKNOWN:
2627 break;
2628 default:
2629 (void) fprintf(stderr, "invalid data type\n");
2630 }
2631
2632 switch (field) {
2633 case USFIELD_TYPE:
2634 if (type == DATA_TYPE_UINT32)
2635 strval = (char *)us_type2str(val32);
2636 break;
2637 case USFIELD_NAME:
2638 if (type == DATA_TYPE_UINT64) {
2639 (void) sprintf(valstr, "%llu",
2640 (u_longlong_t) val64);
2641 strval = valstr;
2642 }
2643 break;
2644 case USFIELD_USED:
2645 case USFIELD_QUOTA:
2646 case USFIELD_OBJUSED:
2647 case USFIELD_OBJQUOTA:
2648 if (type == DATA_TYPE_UINT64) {
2649 if (parsable) {
2650 (void) sprintf(valstr, "%llu",
2651 (u_longlong_t) val64);
2652 } else {
2653 zfs_nicenum(val64, valstr,
2654 sizeof (valstr));
2655 }
2656 if ((field == USFIELD_QUOTA ||
2657 field == USFIELD_OBJQUOTA) &&
2658 strcmp(valstr, "0") == 0)
2659 strval = "none";
2660 else
2661 strval = valstr;
2662 }
2663 break;
2664 }
2665
2666 if (!first) {
2667 if (scripted)
2668 (void) printf("\t");
2669 else
2670 (void) printf(" ");
2671 }
2672 if (scripted)
2673 (void) printf("%s", strval);
2674 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2675 (void) printf("%-*s", (int) width[field], strval);
2676 else
2677 (void) printf("%*s", (int) width[field], strval);
2678
2679 first = B_FALSE;
2680 cfield++;
2681 }
2682
2683 (void) printf("\n");
2684 }
2685
2686 static void
2687 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2688 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2689 {
2690 us_node_t *node;
2691 const char *col;
2692 int cfield = 0;
2693 int field;
2694
2695 if (!scripted) {
2696 boolean_t first = B_TRUE;
2697
2698 while ((field = fields[cfield]) != USFIELD_LAST) {
2699 col = gettext(us_field_hdr[field]);
2700 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2701 (void) printf(first ? "%-*s" : " %-*s",
2702 (int) width[field], col);
2703 } else {
2704 (void) printf(first ? "%*s" : " %*s",
2705 (int) width[field], col);
2706 }
2707 first = B_FALSE;
2708 cfield++;
2709 }
2710 (void) printf("\n");
2711 }
2712
2713 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2714 print_us_node(scripted, parsable, fields, types, width, node);
2715 if (rmnode)
2716 nvlist_free(node->usn_nvl);
2717 }
2718 }
2719
2720 static int
2721 zfs_do_userspace(int argc, char **argv)
2722 {
2723 zfs_handle_t *zhp;
2724 zfs_userquota_prop_t p;
2725 uu_avl_pool_t *avl_pool;
2726 uu_avl_t *avl_tree;
2727 uu_avl_walk_t *walk;
2728 char *delim;
2729 char deffields[] = "type,name,used,quota,objused,objquota";
2730 char *ofield = NULL;
2731 char *tfield = NULL;
2732 int cfield = 0;
2733 int fields[256];
2734 int i;
2735 boolean_t scripted = B_FALSE;
2736 boolean_t prtnum = B_FALSE;
2737 boolean_t parsable = B_FALSE;
2738 boolean_t sid2posix = B_FALSE;
2739 int ret = 0;
2740 int c;
2741 zfs_sort_column_t *sortcol = NULL;
2742 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2743 us_cbdata_t cb;
2744 us_node_t *node;
2745 us_node_t *rmnode;
2746 uu_list_pool_t *listpool;
2747 uu_list_t *list;
2748 uu_avl_index_t idx = 0;
2749 uu_list_index_t idx2 = 0;
2750
2751 if (argc < 2)
2752 usage(B_FALSE);
2753
2754 if (strcmp(argv[0], "groupspace") == 0)
2755 /* Toggle default group types */
2756 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2757
2758 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2759 switch (c) {
2760 case 'n':
2761 prtnum = B_TRUE;
2762 break;
2763 case 'H':
2764 scripted = B_TRUE;
2765 break;
2766 case 'p':
2767 parsable = B_TRUE;
2768 break;
2769 case 'o':
2770 ofield = optarg;
2771 break;
2772 case 's':
2773 case 'S':
2774 if (zfs_add_sort_column(&sortcol, optarg,
2775 c == 's' ? B_FALSE : B_TRUE) != 0) {
2776 (void) fprintf(stderr,
2777 gettext("invalid field '%s'\n"), optarg);
2778 usage(B_FALSE);
2779 }
2780 break;
2781 case 't':
2782 tfield = optarg;
2783 break;
2784 case 'i':
2785 sid2posix = B_TRUE;
2786 break;
2787 case ':':
2788 (void) fprintf(stderr, gettext("missing argument for "
2789 "'%c' option\n"), optopt);
2790 usage(B_FALSE);
2791 break;
2792 case '?':
2793 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2794 optopt);
2795 usage(B_FALSE);
2796 }
2797 }
2798
2799 argc -= optind;
2800 argv += optind;
2801
2802 if (argc < 1) {
2803 (void) fprintf(stderr, gettext("missing dataset name\n"));
2804 usage(B_FALSE);
2805 }
2806 if (argc > 1) {
2807 (void) fprintf(stderr, gettext("too many arguments\n"));
2808 usage(B_FALSE);
2809 }
2810
2811 /* Use default output fields if not specified using -o */
2812 if (ofield == NULL)
2813 ofield = deffields;
2814 do {
2815 if ((delim = strchr(ofield, ',')) != NULL)
2816 *delim = '\0';
2817 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2818 (void) fprintf(stderr, gettext("invalid type '%s' "
2819 "for -o option\n"), ofield);
2820 return (-1);
2821 }
2822 if (delim != NULL)
2823 ofield = delim + 1;
2824 } while (delim != NULL);
2825 fields[cfield] = USFIELD_LAST;
2826
2827 /* Override output types (-t option) */
2828 if (tfield != NULL) {
2829 types = 0;
2830
2831 do {
2832 boolean_t found = B_FALSE;
2833
2834 if ((delim = strchr(tfield, ',')) != NULL)
2835 *delim = '\0';
2836 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2837 i++) {
2838 if (strcmp(tfield, us_type_names[i]) == 0) {
2839 found = B_TRUE;
2840 types |= us_type_bits[i];
2841 break;
2842 }
2843 }
2844 if (!found) {
2845 (void) fprintf(stderr, gettext("invalid type "
2846 "'%s' for -t option\n"), tfield);
2847 return (-1);
2848 }
2849 if (delim != NULL)
2850 tfield = delim + 1;
2851 } while (delim != NULL);
2852 }
2853
2854 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2855 return (1);
2856
2857 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2858 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2859 nomem();
2860 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2861 nomem();
2862
2863 /* Always add default sorting columns */
2864 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2865 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2866
2867 cb.cb_sortcol = sortcol;
2868 cb.cb_numname = prtnum;
2869 cb.cb_nicenum = !parsable;
2870 cb.cb_avl_pool = avl_pool;
2871 cb.cb_avl = avl_tree;
2872 cb.cb_sid2posix = sid2posix;
2873
2874 for (i = 0; i < USFIELD_LAST; i++)
2875 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2876
2877 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2878 if ((zfs_prop_is_user(p) &&
2879 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2880 (zfs_prop_is_group(p) &&
2881 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2882 continue;
2883
2884 cb.cb_prop = p;
2885 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2886 return (ret);
2887 }
2888
2889 /* Sort the list */
2890 if ((node = uu_avl_first(avl_tree)) == NULL)
2891 return (0);
2892
2893 us_populated = B_TRUE;
2894
2895 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2896 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2897 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2898 uu_list_node_init(node, &node->usn_listnode, listpool);
2899
2900 while (node != NULL) {
2901 rmnode = node;
2902 node = uu_avl_next(avl_tree, node);
2903 uu_avl_remove(avl_tree, rmnode);
2904 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2905 uu_list_insert(list, rmnode, idx2);
2906 }
2907
2908 for (node = uu_list_first(list); node != NULL;
2909 node = uu_list_next(list, node)) {
2910 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2911
2912 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2913 uu_avl_insert(avl_tree, node, idx);
2914 }
2915
2916 uu_list_destroy(list);
2917 uu_list_pool_destroy(listpool);
2918
2919 /* Print and free node nvlist memory */
2920 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2921 cb.cb_avl);
2922
2923 zfs_free_sort_columns(sortcol);
2924
2925 /* Clean up the AVL tree */
2926 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2927 nomem();
2928
2929 while ((node = uu_avl_walk_next(walk)) != NULL) {
2930 uu_avl_remove(cb.cb_avl, node);
2931 free(node);
2932 }
2933
2934 uu_avl_walk_end(walk);
2935 uu_avl_destroy(avl_tree);
2936 uu_avl_pool_destroy(avl_pool);
2937
2938 return (ret);
2939 }
2940
2941 /*
2942 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property]
2943 * [-t type[,...]] [filesystem|volume|snapshot] ...
2944 *
2945 * -H Scripted mode; elide headers and separate columns by tabs
2946 * -p Display values in parsable (literal) format.
2947 * -r Recurse over all children
2948 * -d Limit recursion by depth.
2949 * -o Control which fields to display.
2950 * -s Specify sort columns, descending order.
2951 * -S Specify sort columns, ascending order.
2952 * -t Control which object types to display.
2953 *
2954 * When given no arguments, list all filesystems in the system.
2955 * Otherwise, list the specified datasets, optionally recursing down them if
2956 * '-r' is specified.
2957 */
2958 typedef struct list_cbdata {
2959 boolean_t cb_first;
2960 boolean_t cb_literal;
2961 boolean_t cb_scripted;
2962 zprop_list_t *cb_proplist;
2963 } list_cbdata_t;
2964
2965 /*
2966 * Given a list of columns to display, output appropriate headers for each one.
2967 */
2968 static void
2969 print_header(list_cbdata_t *cb)
2970 {
2971 zprop_list_t *pl = cb->cb_proplist;
2972 char headerbuf[ZFS_MAXPROPLEN];
2973 const char *header;
2974 int i;
2975 boolean_t first = B_TRUE;
2976 boolean_t right_justify;
2977
2978 for (; pl != NULL; pl = pl->pl_next) {
2979 if (!first) {
2980 (void) printf(" ");
2981 } else {
2982 first = B_FALSE;
2983 }
2984
2985 right_justify = B_FALSE;
2986 if (pl->pl_prop != ZPROP_INVAL) {
2987 header = zfs_prop_column_name(pl->pl_prop);
2988 right_justify = zfs_prop_align_right(pl->pl_prop);
2989 } else {
2990 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2991 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2992 headerbuf[i] = '\0';
2993 header = headerbuf;
2994 }
2995
2996 if (pl->pl_next == NULL && !right_justify)
2997 (void) printf("%s", header);
2998 else if (right_justify)
2999 (void) printf("%*s", (int)pl->pl_width, header);
3000 else
3001 (void) printf("%-*s", (int)pl->pl_width, header);
3002 }
3003
3004 (void) printf("\n");
3005 }
3006
3007 /*
3008 * Given a dataset and a list of fields, print out all the properties according
3009 * to the described layout.
3010 */
3011 static void
3012 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
3013 {
3014 zprop_list_t *pl = cb->cb_proplist;
3015 boolean_t first = B_TRUE;
3016 char property[ZFS_MAXPROPLEN];
3017 nvlist_t *userprops = zfs_get_user_props(zhp);
3018 nvlist_t *propval;
3019 char *propstr;
3020 boolean_t right_justify;
3021
3022 for (; pl != NULL; pl = pl->pl_next) {
3023 if (!first) {
3024 if (cb->cb_scripted)
3025 (void) printf("\t");
3026 else
3027 (void) printf(" ");
3028 } else {
3029 first = B_FALSE;
3030 }
3031
3032 if (pl->pl_prop == ZFS_PROP_NAME) {
3033 (void) strlcpy(property, zfs_get_name(zhp),
3034 sizeof (property));
3035 propstr = property;
3036 right_justify = zfs_prop_align_right(pl->pl_prop);
3037 } else if (pl->pl_prop != ZPROP_INVAL) {
3038 if (zfs_prop_get(zhp, pl->pl_prop, property,
3039 sizeof (property), NULL, NULL, 0,
3040 cb->cb_literal) != 0)
3041 propstr = "-";
3042 else
3043 propstr = property;
3044 right_justify = zfs_prop_align_right(pl->pl_prop);
3045 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
3046 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
3047 property, sizeof (property), cb->cb_literal) != 0)
3048 propstr = "-";
3049 else
3050 propstr = property;
3051 right_justify = B_TRUE;
3052 } else if (zfs_prop_written(pl->pl_user_prop)) {
3053 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
3054 property, sizeof (property), cb->cb_literal) != 0)
3055 propstr = "-";
3056 else
3057 propstr = property;
3058 right_justify = B_TRUE;
3059 } else {
3060 if (nvlist_lookup_nvlist(userprops,
3061 pl->pl_user_prop, &propval) != 0)
3062 propstr = "-";
3063 else
3064 verify(nvlist_lookup_string(propval,
3065 ZPROP_VALUE, &propstr) == 0);
3066 right_justify = B_FALSE;
3067 }
3068
3069 /*
3070 * If this is being called in scripted mode, or if this is the
3071 * last column and it is left-justified, don't include a width
3072 * format specifier.
3073 */
3074 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3075 (void) printf("%s", propstr);
3076 else if (right_justify)
3077 (void) printf("%*s", (int)pl->pl_width, propstr);
3078 else
3079 (void) printf("%-*s", (int)pl->pl_width, propstr);
3080 }
3081
3082 (void) printf("\n");
3083 }
3084
3085 /*
3086 * Generic callback function to list a dataset or snapshot.
3087 */
3088 static int
3089 list_callback(zfs_handle_t *zhp, void *data)
3090 {
3091 list_cbdata_t *cbp = data;
3092
3093 if (cbp->cb_first) {
3094 if (!cbp->cb_scripted)
3095 print_header(cbp);
3096 cbp->cb_first = B_FALSE;
3097 }
3098
3099 print_dataset(zhp, cbp);
3100
3101 return (0);
3102 }
3103
3104 static int
3105 zfs_do_list(int argc, char **argv)
3106 {
3107 int c;
3108 static char default_fields[] =
3109 "name,used,available,referenced,mountpoint";
3110 int types = ZFS_TYPE_DATASET;
3111 boolean_t types_specified = B_FALSE;
3112 char *fields = NULL;
3113 list_cbdata_t cb = { 0 };
3114 char *value;
3115 int limit = 0;
3116 int ret = 0;
3117 zfs_sort_column_t *sortcol = NULL;
3118 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3119
3120 /* check options */
3121 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3122 switch (c) {
3123 case 'o':
3124 fields = optarg;
3125 break;
3126 case 'p':
3127 cb.cb_literal = B_TRUE;
3128 flags |= ZFS_ITER_LITERAL_PROPS;
3129 break;
3130 case 'd':
3131 limit = parse_depth(optarg, &flags);
3132 break;
3133 case 'r':
3134 flags |= ZFS_ITER_RECURSE;
3135 break;
3136 case 'H':
3137 cb.cb_scripted = B_TRUE;
3138 break;
3139 case 's':
3140 if (zfs_add_sort_column(&sortcol, optarg,
3141 B_FALSE) != 0) {
3142 (void) fprintf(stderr,
3143 gettext("invalid property '%s'\n"), optarg);
3144 usage(B_FALSE);
3145 }
3146 break;
3147 case 'S':
3148 if (zfs_add_sort_column(&sortcol, optarg,
3149 B_TRUE) != 0) {
3150 (void) fprintf(stderr,
3151 gettext("invalid property '%s'\n"), optarg);
3152 usage(B_FALSE);
3153 }
3154 break;
3155 case 't':
3156 types = 0;
3157 types_specified = B_TRUE;
3158 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3159 while (*optarg != '\0') {
3160 static char *type_subopts[] = { "filesystem",
3161 "volume", "snapshot", "snap", "bookmark",
3162 "all", NULL };
3163
3164 switch (getsubopt(&optarg, type_subopts,
3165 &value)) {
3166 case 0:
3167 types |= ZFS_TYPE_FILESYSTEM;
3168 break;
3169 case 1:
3170 types |= ZFS_TYPE_VOLUME;
3171 break;
3172 case 2:
3173 case 3:
3174 types |= ZFS_TYPE_SNAPSHOT;
3175 break;
3176 case 4:
3177 types |= ZFS_TYPE_BOOKMARK;
3178 break;
3179 case 5:
3180 types = ZFS_TYPE_DATASET |
3181 ZFS_TYPE_BOOKMARK;
3182 break;
3183 default:
3184 (void) fprintf(stderr,
3185 gettext("invalid type '%s'\n"),
3186 value);
3187 usage(B_FALSE);
3188 }
3189 }
3190 break;
3191 case ':':
3192 (void) fprintf(stderr, gettext("missing argument for "
3193 "'%c' option\n"), optopt);
3194 usage(B_FALSE);
3195 break;
3196 case '?':
3197 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3198 optopt);
3199 usage(B_FALSE);
3200 }
3201 }
3202
3203 argc -= optind;
3204 argv += optind;
3205
3206 if (fields == NULL)
3207 fields = default_fields;
3208
3209 /*
3210 * If we are only going to list snapshot names and sort by name,
3211 * then we can use faster version.
3212 */
3213 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3214 flags |= ZFS_ITER_SIMPLE;
3215
3216 /*
3217 * If "-o space" and no types were specified, don't display snapshots.
3218 */
3219 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3220 types &= ~ZFS_TYPE_SNAPSHOT;
3221
3222 /*
3223 * If the user specifies '-o all', the zprop_get_list() doesn't
3224 * normally include the name of the dataset. For 'zfs list', we always
3225 * want this property to be first.
3226 */
3227 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3228 != 0)
3229 usage(B_FALSE);
3230
3231 cb.cb_first = B_TRUE;
3232
3233 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3234 limit, list_callback, &cb);
3235
3236 zprop_free_list(cb.cb_proplist);
3237 zfs_free_sort_columns(sortcol);
3238
3239 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3240 (void) fprintf(stderr, gettext("no datasets available\n"));
3241
3242 return (ret);
3243 }
3244
3245 /*
3246 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3247 * zfs rename [-f] -p <fs | vol> <fs | vol>
3248 * zfs rename -r <snap> <snap>
3249 *
3250 * Renames the given dataset to another of the same type.
3251 *
3252 * The '-p' flag creates all the non-existing ancestors of the target first.
3253 */
3254 /* ARGSUSED */
3255 static int
3256 zfs_do_rename(int argc, char **argv)
3257 {
3258 zfs_handle_t *zhp;
3259 int c;
3260 int ret = 0;
3261 boolean_t recurse = B_FALSE;
3262 boolean_t parents = B_FALSE;
3263 boolean_t force_unmount = B_FALSE;
3264
3265 /* check options */
3266 while ((c = getopt(argc, argv, "prf")) != -1) {
3267 switch (c) {
3268 case 'p':
3269 parents = B_TRUE;
3270 break;
3271 case 'r':
3272 recurse = B_TRUE;
3273 break;
3274 case 'f':
3275 force_unmount = B_TRUE;
3276 break;
3277 case '?':
3278 default:
3279 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3280 optopt);
3281 usage(B_FALSE);
3282 }
3283 }
3284
3285 argc -= optind;
3286 argv += optind;
3287
3288 /* check number of arguments */
3289 if (argc < 1) {
3290 (void) fprintf(stderr, gettext("missing source dataset "
3291 "argument\n"));
3292 usage(B_FALSE);
3293 }
3294 if (argc < 2) {
3295 (void) fprintf(stderr, gettext("missing target dataset "
3296 "argument\n"));
3297 usage(B_FALSE);
3298 }
3299 if (argc > 2) {
3300 (void) fprintf(stderr, gettext("too many arguments\n"));
3301 usage(B_FALSE);
3302 }
3303
3304 if (recurse && parents) {
3305 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3306 "exclusive\n"));
3307 usage(B_FALSE);
3308 }
3309
3310 if (recurse && strchr(argv[0], '@') == 0) {
3311 (void) fprintf(stderr, gettext("source dataset for recursive "
3312 "rename must be a snapshot\n"));
3313 usage(B_FALSE);
3314 }
3315
3316 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3317 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3318 return (1);
3319
3320 /* If we were asked and the name looks good, try to create ancestors. */
3321 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3322 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3323 zfs_close(zhp);
3324 return (1);
3325 }
3326
3327 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3328
3329 zfs_close(zhp);
3330 return (ret);
3331 }
3332
3333 /*
3334 * zfs promote <fs>
3335 *
3336 * Promotes the given clone fs to be the parent
3337 */
3338 /* ARGSUSED */
3339 static int
3340 zfs_do_promote(int argc, char **argv)
3341 {
3342 zfs_handle_t *zhp;
3343 int ret = 0;
3344
3345 /* check options */
3346 if (argc > 1 && argv[1][0] == '-') {
3347 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3348 argv[1][1]);
3349 usage(B_FALSE);
3350 }
3351
3352 /* check number of arguments */
3353 if (argc < 2) {
3354 (void) fprintf(stderr, gettext("missing clone filesystem"
3355 " argument\n"));
3356 usage(B_FALSE);
3357 }
3358 if (argc > 2) {
3359 (void) fprintf(stderr, gettext("too many arguments\n"));
3360 usage(B_FALSE);
3361 }
3362
3363 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3364 if (zhp == NULL)
3365 return (1);
3366
3367 ret = (zfs_promote(zhp) != 0);
3368
3369
3370 zfs_close(zhp);
3371 return (ret);
3372 }
3373
3374 /*
3375 * zfs rollback [-rRf] <snapshot>
3376 *
3377 * -r Delete any intervening snapshots before doing rollback
3378 * -R Delete any snapshots and their clones
3379 * -f ignored for backwards compatability
3380 *
3381 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3382 * since then and making it the active dataset. If more recent snapshots exist,
3383 * the command will complain unless the '-r' flag is given.
3384 */
3385 typedef struct rollback_cbdata {
3386 uint64_t cb_create;
3387 boolean_t cb_first;
3388 int cb_doclones;
3389 char *cb_target;
3390 int cb_error;
3391 boolean_t cb_recurse;
3392 } rollback_cbdata_t;
3393
3394 static int
3395 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3396 {
3397 rollback_cbdata_t *cbp = data;
3398
3399 if (cbp->cb_first && cbp->cb_recurse) {
3400 (void) fprintf(stderr, gettext("cannot rollback to "
3401 "'%s': clones of previous snapshots exist\n"),
3402 cbp->cb_target);
3403 (void) fprintf(stderr, gettext("use '-R' to "
3404 "force deletion of the following clones and "
3405 "dependents:\n"));
3406 cbp->cb_first = 0;
3407 cbp->cb_error = 1;
3408 }
3409
3410 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3411
3412 zfs_close(zhp);
3413 return (0);
3414 }
3415
3416
3417 /*
3418 * Report any snapshots more recent than the one specified. Used when '-r' is
3419 * not specified. We reuse this same callback for the snapshot dependents - if
3420 * 'cb_dependent' is set, then this is a dependent and we should report it
3421 * without checking the transaction group.
3422 */
3423 static int
3424 rollback_check(zfs_handle_t *zhp, void *data)
3425 {
3426 rollback_cbdata_t *cbp = data;
3427
3428 if (cbp->cb_doclones) {
3429 zfs_close(zhp);
3430 return (0);
3431 }
3432
3433 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3434 if (cbp->cb_first && !cbp->cb_recurse) {
3435 (void) fprintf(stderr, gettext("cannot "
3436 "rollback to '%s': more recent snapshots "
3437 "or bookmarks exist\n"),
3438 cbp->cb_target);
3439 (void) fprintf(stderr, gettext("use '-r' to "
3440 "force deletion of the following "
3441 "snapshots and bookmarks:\n"));
3442 cbp->cb_first = 0;
3443 cbp->cb_error = 1;
3444 }
3445
3446 if (cbp->cb_recurse) {
3447 if (zfs_iter_dependents(zhp, B_TRUE,
3448 rollback_check_dependent, cbp) != 0) {
3449 zfs_close(zhp);
3450 return (-1);
3451 }
3452 } else {
3453 (void) fprintf(stderr, "%s\n",
3454 zfs_get_name(zhp));
3455 }
3456 }
3457 zfs_close(zhp);
3458 return (0);
3459 }
3460
3461 static int
3462 zfs_do_rollback(int argc, char **argv)
3463 {
3464 int ret = 0;
3465 int c;
3466 boolean_t force = B_FALSE;
3467 rollback_cbdata_t cb = { 0 };
3468 zfs_handle_t *zhp, *snap;
3469 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3470 char *delim;
3471
3472 /* check options */
3473 while ((c = getopt(argc, argv, "rRf")) != -1) {
3474 switch (c) {
3475 case 'r':
3476 cb.cb_recurse = 1;
3477 break;
3478 case 'R':
3479 cb.cb_recurse = 1;
3480 cb.cb_doclones = 1;
3481 break;
3482 case 'f':
3483 force = B_TRUE;
3484 break;
3485 case '?':
3486 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3487 optopt);
3488 usage(B_FALSE);
3489 }
3490 }
3491
3492 argc -= optind;
3493 argv += optind;
3494
3495 /* check number of arguments */
3496 if (argc < 1) {
3497 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3498 usage(B_FALSE);
3499 }
3500 if (argc > 1) {
3501 (void) fprintf(stderr, gettext("too many arguments\n"));
3502 usage(B_FALSE);
3503 }
3504
3505 /* open the snapshot */
3506 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3507 return (1);
3508
3509 /* open the parent dataset */
3510 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3511 verify((delim = strrchr(parentname, '@')) != NULL);
3512 *delim = '\0';
3513 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3514 zfs_close(snap);
3515 return (1);
3516 }
3517
3518 /*
3519 * Check for more recent snapshots and/or clones based on the presence
3520 * of '-r' and '-R'.
3521 */
3522 cb.cb_target = argv[0];
3523 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3524 cb.cb_first = B_TRUE;
3525 cb.cb_error = 0;
3526 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3527 goto out;
3528 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3529 goto out;
3530
3531 if ((ret = cb.cb_error) != 0)
3532 goto out;
3533
3534 /*
3535 * Rollback parent to the given snapshot.
3536 */
3537 ret = zfs_rollback(zhp, snap, force);
3538
3539 out:
3540 zfs_close(snap);
3541 zfs_close(zhp);
3542
3543 if (ret == 0)
3544 return (0);
3545 else
3546 return (1);
3547 }
3548
3549 /*
3550 * zfs set property=value ... { fs | snap | vol } ...
3551 *
3552 * Sets the given properties for all datasets specified on the command line.
3553 */
3554
3555 static int
3556 set_callback(zfs_handle_t *zhp, void *data)
3557 {
3558 nvlist_t *props = data;
3559
3560 if (zfs_prop_set_list(zhp, props) != 0) {
3561 switch (libzfs_errno(g_zfs)) {
3562 case EZFS_MOUNTFAILED:
3563 (void) fprintf(stderr, gettext("property may be set "
3564 "but unable to remount filesystem\n"));
3565 break;
3566 case EZFS_SHARENFSFAILED:
3567 (void) fprintf(stderr, gettext("property may be set "
3568 "but unable to reshare filesystem\n"));
3569 break;
3570 }
3571 return (1);
3572 }
3573 return (0);
3574 }
3575
3576 static int
3577 zfs_do_set(int argc, char **argv)
3578 {
3579 nvlist_t *props = NULL;
3580 int ds_start = -1; /* argv idx of first dataset arg */
3581 int ret = 0;
3582 int i;
3583
3584 /* check for options */
3585 if (argc > 1 && argv[1][0] == '-') {
3586 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3587 argv[1][1]);
3588 usage(B_FALSE);
3589 }
3590
3591 /* check number of arguments */
3592 if (argc < 2) {
3593 (void) fprintf(stderr, gettext("missing arguments\n"));
3594 usage(B_FALSE);
3595 }
3596 if (argc < 3) {
3597 if (strchr(argv[1], '=') == NULL) {
3598 (void) fprintf(stderr, gettext("missing property=value "
3599 "argument(s)\n"));
3600 } else {
3601 (void) fprintf(stderr, gettext("missing dataset "
3602 "name(s)\n"));
3603 }
3604 usage(B_FALSE);
3605 }
3606
3607 /* validate argument order: prop=val args followed by dataset args */
3608 for (i = 1; i < argc; i++) {
3609 if (strchr(argv[i], '=') != NULL) {
3610 if (ds_start > 0) {
3611 /* out-of-order prop=val argument */
3612 (void) fprintf(stderr, gettext("invalid "
3613 "argument order\n"));
3614 usage(B_FALSE);
3615 }
3616 } else if (ds_start < 0) {
3617 ds_start = i;
3618 }
3619 }
3620 if (ds_start < 0) {
3621 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3622 usage(B_FALSE);
3623 }
3624
3625 /* Populate a list of property settings */
3626 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3627 nomem();
3628 for (i = 1; i < ds_start; i++) {
3629 if ((ret = parseprop(props, argv[i])) != 0)
3630 goto error;
3631 }
3632
3633 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3634 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3635
3636 error:
3637 nvlist_free(props);
3638 return (ret);
3639 }
3640
3641 typedef struct snap_cbdata {
3642 nvlist_t *sd_nvl;
3643 boolean_t sd_recursive;
3644 const char *sd_snapname;
3645 } snap_cbdata_t;
3646
3647 static int
3648 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3649 {
3650 snap_cbdata_t *sd = arg;
3651 char *name;
3652 int rv = 0;
3653 int error;
3654
3655 if (sd->sd_recursive &&
3656 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3657 zfs_close(zhp);
3658 return (0);
3659 }
3660
3661 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3662 if (error == -1)
3663 nomem();
3664 fnvlist_add_boolean(sd->sd_nvl, name);
3665 free(name);
3666
3667 if (sd->sd_recursive)
3668 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3669 zfs_close(zhp);
3670 return (rv);
3671 }
3672
3673 /*
3674 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3675 *
3676 * Creates a snapshot with the given name. While functionally equivalent to
3677 * 'zfs create', it is a separate command to differentiate intent.
3678 */
3679 static int
3680 zfs_do_snapshot(int argc, char **argv)
3681 {
3682 int ret = 0;
3683 signed char c;
3684 nvlist_t *props;
3685 snap_cbdata_t sd = { 0 };
3686 boolean_t multiple_snaps = B_FALSE;
3687
3688 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3689 nomem();
3690 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3691 nomem();
3692
3693 /* check options */
3694 while ((c = getopt(argc, argv, "ro:")) != -1) {
3695 switch (c) {
3696 case 'o':
3697 if (parseprop(props, optarg) != 0) {
3698 nvlist_free(sd.sd_nvl);
3699 nvlist_free(props);
3700 return (1);
3701 }
3702 break;
3703 case 'r':
3704 sd.sd_recursive = B_TRUE;
3705 multiple_snaps = B_TRUE;
3706 break;
3707 case '?':
3708 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3709 optopt);
3710 goto usage;
3711 }
3712 }
3713
3714 argc -= optind;
3715 argv += optind;
3716
3717 /* check number of arguments */
3718 if (argc < 1) {
3719 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3720 goto usage;
3721 }
3722
3723 if (argc > 1)
3724 multiple_snaps = B_TRUE;
3725 for (; argc > 0; argc--, argv++) {
3726 char *atp;
3727 zfs_handle_t *zhp;
3728
3729 atp = strchr(argv[0], '@');
3730 if (atp == NULL)
3731 goto usage;
3732 *atp = '\0';
3733 sd.sd_snapname = atp + 1;
3734 zhp = zfs_open(g_zfs, argv[0],
3735 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3736 if (zhp == NULL)
3737 goto usage;
3738 if (zfs_snapshot_cb(zhp, &sd) != 0)
3739 goto usage;
3740 }
3741
3742 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3743 nvlist_free(sd.sd_nvl);
3744 nvlist_free(props);
3745 if (ret != 0 && multiple_snaps)
3746 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3747 return (ret != 0);
3748
3749 usage:
3750 nvlist_free(sd.sd_nvl);
3751 nvlist_free(props);
3752 usage(B_FALSE);
3753 return (-1);
3754 }
3755
3756 /*
3757 * Send a backup stream to stdout.
3758 */
3759 static int
3760 zfs_do_send(int argc, char **argv)
3761 {
3762 char *fromname = NULL;
3763 char *toname = NULL;
3764 char *resume_token = NULL;
3765 char *cp;
3766 zfs_handle_t *zhp;
3767 sendflags_t flags = { 0 };
3768 int c, err;
3769 nvlist_t *dbgnv = NULL;
3770 boolean_t extraverbose = B_FALSE;
3771
3772 /* check options */
3773 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:c")) != -1) {
3774 switch (c) {
3775 case 'i':
3776 if (fromname)
3777 usage(B_FALSE);
3778 fromname = optarg;
3779 break;
3780 case 'I':
3781 if (fromname)
3782 usage(B_FALSE);
3783 fromname = optarg;
3784 flags.doall = B_TRUE;
3785 break;
3786 case 'R':
3787 flags.replicate = B_TRUE;
3788 break;
3789 case 'p':
3790 flags.props = B_TRUE;
3791 break;
3792 case 'P':
3793 flags.parsable = B_TRUE;
3794 flags.verbose = B_TRUE;
3795 break;
3796 case 'v':
3797 if (flags.verbose)
3798 extraverbose = B_TRUE;
3799 flags.verbose = B_TRUE;
3800 flags.progress = B_TRUE;
3801 break;
3802 case 'D':
3803 flags.dedup = B_TRUE;
3804 break;
3805 case 'n':
3806 flags.dryrun = B_TRUE;
3807 break;
3808 case 'L':
3809 flags.largeblock = B_TRUE;
3810 break;
3811 case 'e':
3812 flags.embed_data = B_TRUE;
3813 break;
3814 case 't':
3815 resume_token = optarg;
3816 break;
3817 case 'c':
3818 flags.compress = B_TRUE;
3819 break;
3820 case ':':
3821 (void) fprintf(stderr, gettext("missing argument for "
3822 "'%c' option\n"), optopt);
3823 usage(B_FALSE);
3824 break;
3825 case '?':
3826 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3827 optopt);
3828 usage(B_FALSE);
3829 }
3830 }
3831
3832 argc -= optind;
3833 argv += optind;
3834
3835 if (resume_token != NULL) {
3836 if (fromname != NULL || flags.replicate || flags.props ||
3837 flags.dedup) {
3838 (void) fprintf(stderr,
3839 gettext("invalid flags combined with -t\n"));
3840 usage(B_FALSE);
3841 }
3842 if (argc != 0) {
3843 (void) fprintf(stderr, gettext("no additional "
3844 "arguments are permitted with -t\n"));
3845 usage(B_FALSE);
3846 }
3847 } else {
3848 if (argc < 1) {
3849 (void) fprintf(stderr,
3850 gettext("missing snapshot argument\n"));
3851 usage(B_FALSE);
3852 }
3853 if (argc > 1) {
3854 (void) fprintf(stderr, gettext("too many arguments\n"));
3855 usage(B_FALSE);
3856 }
3857 }
3858
3859 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
3860 (void) fprintf(stderr,
3861 gettext("Error: Stream can not be written to a terminal.\n"
3862 "You must redirect standard output.\n"));
3863 return (1);
3864 }
3865
3866 if (resume_token != NULL) {
3867 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
3868 resume_token));
3869 }
3870
3871 /*
3872 * Special case sending a filesystem, or from a bookmark.
3873 */
3874 if (strchr(argv[0], '@') == NULL ||
3875 (fromname && strchr(fromname, '#') != NULL)) {
3876 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
3877 enum lzc_send_flags lzc_flags = 0;
3878
3879 if (flags.replicate || flags.doall || flags.props ||
3880 flags.dedup || flags.dryrun || flags.verbose ||
3881 flags.progress) {
3882 (void) fprintf(stderr,
3883 gettext("Error: "
3884 "Unsupported flag with filesystem or bookmark.\n"));
3885 return (1);
3886 }
3887
3888 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
3889 if (zhp == NULL)
3890 return (1);
3891
3892 if (flags.largeblock)
3893 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
3894 if (flags.embed_data)
3895 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
3896 if (flags.compress)
3897 lzc_flags |= LZC_SEND_FLAG_COMPRESS;
3898
3899 if (fromname != NULL &&
3900 (fromname[0] == '#' || fromname[0] == '@')) {
3901 /*
3902 * Incremental source name begins with # or @.
3903 * Default to same fs as target.
3904 */
3905 (void) strlcpy(frombuf, argv[0], sizeof (frombuf));
3906 cp = strchr(frombuf, '@');
3907 if (cp != NULL)
3908 *cp = '\0';
3909 (void) strlcat(frombuf, fromname, sizeof (frombuf));
3910 fromname = frombuf;
3911 }
3912 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags);
3913 zfs_close(zhp);
3914 return (err != 0);
3915 }
3916
3917 cp = strchr(argv[0], '@');
3918 *cp = '\0';
3919 toname = cp + 1;
3920 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3921 if (zhp == NULL)
3922 return (1);
3923
3924 /*
3925 * If they specified the full path to the snapshot, chop off
3926 * everything except the short name of the snapshot, but special
3927 * case if they specify the origin.
3928 */
3929 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3930 char origin[ZFS_MAX_DATASET_NAME_LEN];
3931 zprop_source_t src;
3932
3933 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3934 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3935
3936 if (strcmp(origin, fromname) == 0) {
3937 fromname = NULL;
3938 flags.fromorigin = B_TRUE;
3939 } else {
3940 *cp = '\0';
3941 if (cp != fromname && strcmp(argv[0], fromname)) {
3942 (void) fprintf(stderr,
3943 gettext("incremental source must be "
3944 "in same filesystem\n"));
3945 usage(B_FALSE);
3946 }
3947 fromname = cp + 1;
3948 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3949 (void) fprintf(stderr,
3950 gettext("invalid incremental source\n"));
3951 usage(B_FALSE);
3952 }
3953 }
3954 }
3955
3956 if (flags.replicate && fromname == NULL)
3957 flags.doall = B_TRUE;
3958
3959 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
3960 extraverbose ? &dbgnv : NULL);
3961
3962 if (extraverbose && dbgnv != NULL) {
3963 /*
3964 * dump_nvlist prints to stdout, but that's been
3965 * redirected to a file. Make it print to stderr
3966 * instead.
3967 */
3968 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3969 dump_nvlist(dbgnv, 0);
3970 nvlist_free(dbgnv);
3971 }
3972 zfs_close(zhp);
3973
3974 return (err != 0);
3975 }
3976
3977 /*
3978 * Restore a backup stream from stdin.
3979 */
3980 static int
3981 zfs_do_receive(int argc, char **argv)
3982 {
3983 int c, err;
3984 recvflags_t flags = { 0 };
3985 boolean_t abort_resumable = B_FALSE;
3986
3987 nvlist_t *props;
3988 nvpair_t *nvp = NULL;
3989
3990 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3991 nomem();
3992
3993 /* check options */
3994 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) {
3995 switch (c) {
3996 case 'o':
3997 if (parseprop(props, optarg) != 0) {
3998 nvlist_free(props);
3999 return (1);
4000 }
4001 break;
4002 case 'd':
4003 flags.isprefix = B_TRUE;
4004 break;
4005 case 'e':
4006 flags.isprefix = B_TRUE;
4007 flags.istail = B_TRUE;
4008 break;
4009 case 'n':
4010 flags.dryrun = B_TRUE;
4011 break;
4012 case 'u':
4013 flags.nomount = B_TRUE;
4014 break;
4015 case 'v':
4016 flags.verbose = B_TRUE;
4017 break;
4018 case 's':
4019 flags.resumable = B_TRUE;
4020 break;
4021 case 'F':
4022 flags.force = B_TRUE;
4023 break;
4024 case 'A':
4025 abort_resumable = B_TRUE;
4026 break;
4027 case ':':
4028 (void) fprintf(stderr, gettext("missing argument for "
4029 "'%c' option\n"), optopt);
4030 usage(B_FALSE);
4031 break;
4032 case '?':
4033 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4034 optopt);
4035 usage(B_FALSE);
4036 }
4037 }
4038
4039 argc -= optind;
4040 argv += optind;
4041
4042 /* check number of arguments */
4043 if (argc < 1) {
4044 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4045 usage(B_FALSE);
4046 }
4047 if (argc > 1) {
4048 (void) fprintf(stderr, gettext("too many arguments\n"));
4049 usage(B_FALSE);
4050 }
4051
4052 while ((nvp = nvlist_next_nvpair(props, nvp))) {
4053 if (strcmp(nvpair_name(nvp), "origin") != 0) {
4054 (void) fprintf(stderr, gettext("invalid option"));
4055 usage(B_FALSE);
4056 }
4057 }
4058
4059 if (abort_resumable) {
4060 if (flags.isprefix || flags.istail || flags.dryrun ||
4061 flags.resumable || flags.nomount) {
4062 (void) fprintf(stderr, gettext("invalid option"));
4063 usage(B_FALSE);
4064 }
4065
4066 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4067 (void) snprintf(namebuf, sizeof (namebuf),
4068 "%s/%%recv", argv[0]);
4069
4070 if (zfs_dataset_exists(g_zfs, namebuf,
4071 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4072 zfs_handle_t *zhp = zfs_open(g_zfs,
4073 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4074 if (zhp == NULL) {
4075 nvlist_free(props);
4076 return (1);
4077 }
4078 err = zfs_destroy(zhp, B_FALSE);
4079 zfs_close(zhp);
4080 } else {
4081 zfs_handle_t *zhp = zfs_open(g_zfs,
4082 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4083 if (zhp == NULL)
4084 usage(B_FALSE);
4085 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4086 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4087 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4088 (void) fprintf(stderr,
4089 gettext("'%s' does not have any "
4090 "resumable receive state to abort\n"),
4091 argv[0]);
4092 nvlist_free(props);
4093 zfs_close(zhp);
4094 return (1);
4095 }
4096 err = zfs_destroy(zhp, B_FALSE);
4097 zfs_close(zhp);
4098 }
4099 nvlist_free(props);
4100 return (err != 0);
4101 }
4102
4103 if (isatty(STDIN_FILENO)) {
4104 (void) fprintf(stderr,
4105 gettext("Error: Backup stream can not be read "
4106 "from a terminal.\n"
4107 "You must redirect standard input.\n"));
4108 nvlist_free(props);
4109 return (1);
4110 }
4111 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4112 nvlist_free(props);
4113
4114 return (err != 0);
4115 }
4116
4117 /*
4118 * allow/unallow stuff
4119 */
4120 /* copied from zfs/sys/dsl_deleg.h */
4121 #define ZFS_DELEG_PERM_CREATE "create"
4122 #define ZFS_DELEG_PERM_DESTROY "destroy"
4123 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4124 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4125 #define ZFS_DELEG_PERM_CLONE "clone"
4126 #define ZFS_DELEG_PERM_PROMOTE "promote"
4127 #define ZFS_DELEG_PERM_RENAME "rename"
4128 #define ZFS_DELEG_PERM_MOUNT "mount"
4129 #define ZFS_DELEG_PERM_SHARE "share"
4130 #define ZFS_DELEG_PERM_SEND "send"
4131 #define ZFS_DELEG_PERM_RECEIVE "receive"
4132 #define ZFS_DELEG_PERM_ALLOW "allow"
4133 #define ZFS_DELEG_PERM_USERPROP "userprop"
4134 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4135 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4136 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4137 #define ZFS_DELEG_PERM_USERUSED "userused"
4138 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4139 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota"
4140 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota"
4141 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused"
4142 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused"
4143
4144 #define ZFS_DELEG_PERM_HOLD "hold"
4145 #define ZFS_DELEG_PERM_RELEASE "release"
4146 #define ZFS_DELEG_PERM_DIFF "diff"
4147 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4148
4149 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4150
4151 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4152 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4153 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4154 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4155 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4156 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4157 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4158 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4159 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4160 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4161 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4162 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4163 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4164 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4165 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4166 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4167 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4168
4169 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4170 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4171 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4172 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4173 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4174 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA },
4175 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED },
4176 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA },
4177 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED },
4178 { NULL, ZFS_DELEG_NOTE_NONE }
4179 };
4180
4181 /* permission structure */
4182 typedef struct deleg_perm {
4183 zfs_deleg_who_type_t dp_who_type;
4184 const char *dp_name;
4185 boolean_t dp_local;
4186 boolean_t dp_descend;
4187 } deleg_perm_t;
4188
4189 /* */
4190 typedef struct deleg_perm_node {
4191 deleg_perm_t dpn_perm;
4192
4193 uu_avl_node_t dpn_avl_node;
4194 } deleg_perm_node_t;
4195
4196 typedef struct fs_perm fs_perm_t;
4197
4198 /* permissions set */
4199 typedef struct who_perm {
4200 zfs_deleg_who_type_t who_type;
4201 const char *who_name; /* id */
4202 char who_ug_name[256]; /* user/group name */
4203 fs_perm_t *who_fsperm; /* uplink */
4204
4205 uu_avl_t *who_deleg_perm_avl; /* permissions */
4206 } who_perm_t;
4207
4208 /* */
4209 typedef struct who_perm_node {
4210 who_perm_t who_perm;
4211 uu_avl_node_t who_avl_node;
4212 } who_perm_node_t;
4213
4214 typedef struct fs_perm_set fs_perm_set_t;
4215 /* fs permissions */
4216 struct fs_perm {
4217 const char *fsp_name;
4218
4219 uu_avl_t *fsp_sc_avl; /* sets,create */
4220 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4221
4222 fs_perm_set_t *fsp_set; /* uplink */
4223 };
4224
4225 /* */
4226 typedef struct fs_perm_node {
4227 fs_perm_t fspn_fsperm;
4228 uu_avl_t *fspn_avl;
4229
4230 uu_list_node_t fspn_list_node;
4231 } fs_perm_node_t;
4232
4233 /* top level structure */
4234 struct fs_perm_set {
4235 uu_list_pool_t *fsps_list_pool;
4236 uu_list_t *fsps_list; /* list of fs_perms */
4237
4238 uu_avl_pool_t *fsps_named_set_avl_pool;
4239 uu_avl_pool_t *fsps_who_perm_avl_pool;
4240 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4241 };
4242
4243 static inline const char *
4244 deleg_perm_type(zfs_deleg_note_t note)
4245 {
4246 /* subcommands */
4247 switch (note) {
4248 /* SUBCOMMANDS */
4249 /* OTHER */
4250 case ZFS_DELEG_NOTE_GROUPQUOTA:
4251 case ZFS_DELEG_NOTE_GROUPUSED:
4252 case ZFS_DELEG_NOTE_USERPROP:
4253 case ZFS_DELEG_NOTE_USERQUOTA:
4254 case ZFS_DELEG_NOTE_USERUSED:
4255 case ZFS_DELEG_NOTE_USEROBJQUOTA:
4256 case ZFS_DELEG_NOTE_USEROBJUSED:
4257 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
4258 case ZFS_DELEG_NOTE_GROUPOBJUSED:
4259 /* other */
4260 return (gettext("other"));
4261 default:
4262 return (gettext("subcommand"));
4263 }
4264 }
4265
4266 static int inline
4267 who_type2weight(zfs_deleg_who_type_t who_type)
4268 {
4269 int res;
4270 switch (who_type) {
4271 case ZFS_DELEG_NAMED_SET_SETS:
4272 case ZFS_DELEG_NAMED_SET:
4273 res = 0;
4274 break;
4275 case ZFS_DELEG_CREATE_SETS:
4276 case ZFS_DELEG_CREATE:
4277 res = 1;
4278 break;
4279 case ZFS_DELEG_USER_SETS:
4280 case ZFS_DELEG_USER:
4281 res = 2;
4282 break;
4283 case ZFS_DELEG_GROUP_SETS:
4284 case ZFS_DELEG_GROUP:
4285 res = 3;
4286 break;
4287 case ZFS_DELEG_EVERYONE_SETS:
4288 case ZFS_DELEG_EVERYONE:
4289 res = 4;
4290 break;
4291 default:
4292 res = -1;
4293 }
4294
4295 return (res);
4296 }
4297
4298 /* ARGSUSED */
4299 static int
4300 who_perm_compare(const void *larg, const void *rarg, void *unused)
4301 {
4302 const who_perm_node_t *l = larg;
4303 const who_perm_node_t *r = rarg;
4304 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4305 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4306 int lweight = who_type2weight(ltype);
4307 int rweight = who_type2weight(rtype);
4308 int res = lweight - rweight;
4309 if (res == 0)
4310 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4311 ZFS_MAX_DELEG_NAME-1);
4312
4313 if (res == 0)
4314 return (0);
4315 if (res > 0)
4316 return (1);
4317 else
4318 return (-1);
4319 }
4320
4321 /* ARGSUSED */
4322 static int
4323 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4324 {
4325 const deleg_perm_node_t *l = larg;
4326 const deleg_perm_node_t *r = rarg;
4327 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4328 ZFS_MAX_DELEG_NAME-1);
4329
4330 if (res == 0)
4331 return (0);
4332
4333 if (res > 0)
4334 return (1);
4335 else
4336 return (-1);
4337 }
4338
4339 static inline void
4340 fs_perm_set_init(fs_perm_set_t *fspset)
4341 {
4342 bzero(fspset, sizeof (fs_perm_set_t));
4343
4344 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4345 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4346 NULL, UU_DEFAULT)) == NULL)
4347 nomem();
4348 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4349 UU_DEFAULT)) == NULL)
4350 nomem();
4351
4352 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4353 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4354 who_perm_node_t, who_avl_node), who_perm_compare,
4355 UU_DEFAULT)) == NULL)
4356 nomem();
4357
4358 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4359 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4360 who_perm_node_t, who_avl_node), who_perm_compare,
4361 UU_DEFAULT)) == NULL)
4362 nomem();
4363
4364 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4365 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4366 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4367 == NULL)
4368 nomem();
4369 }
4370
4371 static inline void fs_perm_fini(fs_perm_t *);
4372 static inline void who_perm_fini(who_perm_t *);
4373
4374 static inline void
4375 fs_perm_set_fini(fs_perm_set_t *fspset)
4376 {
4377 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4378
4379 while (node != NULL) {
4380 fs_perm_node_t *next_node =
4381 uu_list_next(fspset->fsps_list, node);
4382 fs_perm_t *fsperm = &node->fspn_fsperm;
4383 fs_perm_fini(fsperm);
4384 uu_list_remove(fspset->fsps_list, node);
4385 free(node);
4386 node = next_node;
4387 }
4388
4389 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4390 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4391 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4392 }
4393
4394 static inline void
4395 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4396 const char *name)
4397 {
4398 deleg_perm->dp_who_type = type;
4399 deleg_perm->dp_name = name;
4400 }
4401
4402 static inline void
4403 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4404 zfs_deleg_who_type_t type, const char *name)
4405 {
4406 uu_avl_pool_t *pool;
4407 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4408
4409 bzero(who_perm, sizeof (who_perm_t));
4410
4411 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4412 UU_DEFAULT)) == NULL)
4413 nomem();
4414
4415 who_perm->who_type = type;
4416 who_perm->who_name = name;
4417 who_perm->who_fsperm = fsperm;
4418 }
4419
4420 static inline void
4421 who_perm_fini(who_perm_t *who_perm)
4422 {
4423 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4424
4425 while (node != NULL) {
4426 deleg_perm_node_t *next_node =
4427 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4428
4429 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4430 free(node);
4431 node = next_node;
4432 }
4433
4434 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4435 }
4436
4437 static inline void
4438 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4439 {
4440 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4441 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4442
4443 bzero(fsperm, sizeof (fs_perm_t));
4444
4445 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4446 == NULL)
4447 nomem();
4448
4449 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4450 == NULL)
4451 nomem();
4452
4453 fsperm->fsp_set = fspset;
4454 fsperm->fsp_name = fsname;
4455 }
4456
4457 static inline void
4458 fs_perm_fini(fs_perm_t *fsperm)
4459 {
4460 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4461 while (node != NULL) {
4462 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4463 node);
4464 who_perm_t *who_perm = &node->who_perm;
4465 who_perm_fini(who_perm);
4466 uu_avl_remove(fsperm->fsp_sc_avl, node);
4467 free(node);
4468 node = next_node;
4469 }
4470
4471 node = uu_avl_first(fsperm->fsp_uge_avl);
4472 while (node != NULL) {
4473 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4474 node);
4475 who_perm_t *who_perm = &node->who_perm;
4476 who_perm_fini(who_perm);
4477 uu_avl_remove(fsperm->fsp_uge_avl, node);
4478 free(node);
4479 node = next_node;
4480 }
4481
4482 uu_avl_destroy(fsperm->fsp_sc_avl);
4483 uu_avl_destroy(fsperm->fsp_uge_avl);
4484 }
4485
4486 static void inline
4487 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4488 zfs_deleg_who_type_t who_type, const char *name, char locality)
4489 {
4490 uu_avl_index_t idx = 0;
4491
4492 deleg_perm_node_t *found_node = NULL;
4493 deleg_perm_t *deleg_perm = &node->dpn_perm;
4494
4495 deleg_perm_init(deleg_perm, who_type, name);
4496
4497 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4498 == NULL)
4499 uu_avl_insert(avl, node, idx);
4500 else {
4501 node = found_node;
4502 deleg_perm = &node->dpn_perm;
4503 }
4504
4505
4506 switch (locality) {
4507 case ZFS_DELEG_LOCAL:
4508 deleg_perm->dp_local = B_TRUE;
4509 break;
4510 case ZFS_DELEG_DESCENDENT:
4511 deleg_perm->dp_descend = B_TRUE;
4512 break;
4513 case ZFS_DELEG_NA:
4514 break;
4515 default:
4516 assert(B_FALSE); /* invalid locality */
4517 }
4518 }
4519
4520 static inline int
4521 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4522 {
4523 nvpair_t *nvp = NULL;
4524 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4525 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4526 zfs_deleg_who_type_t who_type = who_perm->who_type;
4527
4528 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4529 const char *name = nvpair_name(nvp);
4530 data_type_t type = nvpair_type(nvp);
4531 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4532 deleg_perm_node_t *node =
4533 safe_malloc(sizeof (deleg_perm_node_t));
4534
4535 VERIFY(type == DATA_TYPE_BOOLEAN);
4536
4537 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4538 set_deleg_perm_node(avl, node, who_type, name, locality);
4539 }
4540
4541 return (0);
4542 }
4543
4544 static inline int
4545 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4546 {
4547 nvpair_t *nvp = NULL;
4548 fs_perm_set_t *fspset = fsperm->fsp_set;
4549
4550 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4551 nvlist_t *nvl2 = NULL;
4552 const char *name = nvpair_name(nvp);
4553 uu_avl_t *avl = NULL;
4554 uu_avl_pool_t *avl_pool = NULL;
4555 zfs_deleg_who_type_t perm_type = name[0];
4556 char perm_locality = name[1];
4557 const char *perm_name = name + 3;
4558 boolean_t is_set = B_TRUE;
4559 who_perm_t *who_perm = NULL;
4560
4561 assert('$' == name[2]);
4562
4563 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4564 return (-1);
4565
4566 switch (perm_type) {
4567 case ZFS_DELEG_CREATE:
4568 case ZFS_DELEG_CREATE_SETS:
4569 case ZFS_DELEG_NAMED_SET:
4570 case ZFS_DELEG_NAMED_SET_SETS:
4571 avl_pool = fspset->fsps_named_set_avl_pool;
4572 avl = fsperm->fsp_sc_avl;
4573 break;
4574 case ZFS_DELEG_USER:
4575 case ZFS_DELEG_USER_SETS:
4576 case ZFS_DELEG_GROUP:
4577 case ZFS_DELEG_GROUP_SETS:
4578 case ZFS_DELEG_EVERYONE:
4579 case ZFS_DELEG_EVERYONE_SETS:
4580 avl_pool = fspset->fsps_who_perm_avl_pool;
4581 avl = fsperm->fsp_uge_avl;
4582 break;
4583 default:
4584 break;
4585 }
4586
4587 if (is_set) {
4588 who_perm_node_t *found_node = NULL;
4589 who_perm_node_t *node = safe_malloc(
4590 sizeof (who_perm_node_t));
4591 who_perm = &node->who_perm;
4592 uu_avl_index_t idx = 0;
4593
4594 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4595 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4596
4597 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4598 == NULL) {
4599 if (avl == fsperm->fsp_uge_avl) {
4600 uid_t rid = 0;
4601 struct passwd *p = NULL;
4602 struct group *g = NULL;
4603 const char *nice_name = NULL;
4604
4605 switch (perm_type) {
4606 case ZFS_DELEG_USER_SETS:
4607 case ZFS_DELEG_USER:
4608 rid = atoi(perm_name);
4609 p = getpwuid(rid);
4610 if (p)
4611 nice_name = p->pw_name;
4612 break;
4613 case ZFS_DELEG_GROUP_SETS:
4614 case ZFS_DELEG_GROUP:
4615 rid = atoi(perm_name);
4616 g = getgrgid(rid);
4617 if (g)
4618 nice_name = g->gr_name;
4619 break;
4620 default:
4621 break;
4622 }
4623
4624 if (nice_name != NULL)
4625 (void) strlcpy(
4626 node->who_perm.who_ug_name,
4627 nice_name, 256);
4628 }
4629
4630 uu_avl_insert(avl, node, idx);
4631 } else {
4632 node = found_node;
4633 who_perm = &node->who_perm;
4634 }
4635 }
4636 VERIFY3P(who_perm, !=, NULL);
4637 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4638 }
4639
4640 return (0);
4641 }
4642
4643 static inline int
4644 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4645 {
4646 nvpair_t *nvp = NULL;
4647 uu_avl_index_t idx = 0;
4648
4649 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4650 nvlist_t *nvl2 = NULL;
4651 const char *fsname = nvpair_name(nvp);
4652 data_type_t type = nvpair_type(nvp);
4653 fs_perm_t *fsperm = NULL;
4654 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4655 if (node == NULL)
4656 nomem();
4657
4658 fsperm = &node->fspn_fsperm;
4659
4660 VERIFY(DATA_TYPE_NVLIST == type);
4661
4662 uu_list_node_init(node, &node->fspn_list_node,
4663 fspset->fsps_list_pool);
4664
4665 idx = uu_list_numnodes(fspset->fsps_list);
4666 fs_perm_init(fsperm, fspset, fsname);
4667
4668 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4669 return (-1);
4670
4671 (void) parse_fs_perm(fsperm, nvl2);
4672
4673 uu_list_insert(fspset->fsps_list, node, idx);
4674 }
4675
4676 return (0);
4677 }
4678
4679 static inline const char *
4680 deleg_perm_comment(zfs_deleg_note_t note)
4681 {
4682 const char *str = "";
4683
4684 /* subcommands */
4685 switch (note) {
4686 /* SUBCOMMANDS */
4687 case ZFS_DELEG_NOTE_ALLOW:
4688 str = gettext("Must also have the permission that is being"
4689 "\n\t\t\t\tallowed");
4690 break;
4691 case ZFS_DELEG_NOTE_CLONE:
4692 str = gettext("Must also have the 'create' ability and 'mount'"
4693 "\n\t\t\t\tability in the origin file system");
4694 break;
4695 case ZFS_DELEG_NOTE_CREATE:
4696 str = gettext("Must also have the 'mount' ability");
4697 break;
4698 case ZFS_DELEG_NOTE_DESTROY:
4699 str = gettext("Must also have the 'mount' ability");
4700 break;
4701 case ZFS_DELEG_NOTE_DIFF:
4702 str = gettext("Allows lookup of paths within a dataset;"
4703 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4704 "\n\t\t\t\tin order to use zfs diff");
4705 break;
4706 case ZFS_DELEG_NOTE_HOLD:
4707 str = gettext("Allows adding a user hold to a snapshot");
4708 break;
4709 case ZFS_DELEG_NOTE_MOUNT:
4710 str = gettext("Allows mount/umount of ZFS datasets");
4711 break;
4712 case ZFS_DELEG_NOTE_PROMOTE:
4713 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4714 " 'promote' ability in the origin file system");
4715 break;
4716 case ZFS_DELEG_NOTE_RECEIVE:
4717 str = gettext("Must also have the 'mount' and 'create'"
4718 " ability");
4719 break;
4720 case ZFS_DELEG_NOTE_RELEASE:
4721 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4722 "might destroy the snapshot");
4723 break;
4724 case ZFS_DELEG_NOTE_RENAME:
4725 str = gettext("Must also have the 'mount' and 'create'"
4726 "\n\t\t\t\tability in the new parent");
4727 break;
4728 case ZFS_DELEG_NOTE_ROLLBACK:
4729 str = gettext("");
4730 break;
4731 case ZFS_DELEG_NOTE_SEND:
4732 str = gettext("");
4733 break;
4734 case ZFS_DELEG_NOTE_SHARE:
4735 str = gettext("Allows sharing file systems over NFS or SMB"
4736 "\n\t\t\t\tprotocols");
4737 break;
4738 case ZFS_DELEG_NOTE_SNAPSHOT:
4739 str = gettext("");
4740 break;
4741 /*
4742 * case ZFS_DELEG_NOTE_VSCAN:
4743 * str = gettext("");
4744 * break;
4745 */
4746 /* OTHER */
4747 case ZFS_DELEG_NOTE_GROUPQUOTA:
4748 str = gettext("Allows accessing any groupquota@... property");
4749 break;
4750 case ZFS_DELEG_NOTE_GROUPUSED:
4751 str = gettext("Allows reading any groupused@... property");
4752 break;
4753 case ZFS_DELEG_NOTE_USERPROP:
4754 str = gettext("Allows changing any user property");
4755 break;
4756 case ZFS_DELEG_NOTE_USERQUOTA:
4757 str = gettext("Allows accessing any userquota@... property");
4758 break;
4759 case ZFS_DELEG_NOTE_USERUSED:
4760 str = gettext("Allows reading any userused@... property");
4761 break;
4762 case ZFS_DELEG_NOTE_USEROBJQUOTA:
4763 str = gettext("Allows accessing any userobjquota@... property");
4764 break;
4765 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
4766 str = gettext("Allows accessing any \n\t\t\t\t"
4767 "groupobjquota@... property");
4768 break;
4769 case ZFS_DELEG_NOTE_GROUPOBJUSED:
4770 str = gettext("Allows reading any groupobjused@... property");
4771 break;
4772 case ZFS_DELEG_NOTE_USEROBJUSED:
4773 str = gettext("Allows reading any userobjused@... property");
4774 break;
4775 /* other */
4776 default:
4777 str = "";
4778 }
4779
4780 return (str);
4781 }
4782
4783 struct allow_opts {
4784 boolean_t local;
4785 boolean_t descend;
4786 boolean_t user;
4787 boolean_t group;
4788 boolean_t everyone;
4789 boolean_t create;
4790 boolean_t set;
4791 boolean_t recursive; /* unallow only */
4792 boolean_t prt_usage;
4793
4794 boolean_t prt_perms;
4795 char *who;
4796 char *perms;
4797 const char *dataset;
4798 };
4799
4800 static inline int
4801 prop_cmp(const void *a, const void *b)
4802 {
4803 const char *str1 = *(const char **)a;
4804 const char *str2 = *(const char **)b;
4805 return (strcmp(str1, str2));
4806 }
4807
4808 static void
4809 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4810 {
4811 const char *opt_desc[] = {
4812 "-h", gettext("show this help message and exit"),
4813 "-l", gettext("set permission locally"),
4814 "-d", gettext("set permission for descents"),
4815 "-u", gettext("set permission for user"),
4816 "-g", gettext("set permission for group"),
4817 "-e", gettext("set permission for everyone"),
4818 "-c", gettext("set create time permission"),
4819 "-s", gettext("define permission set"),
4820 /* unallow only */
4821 "-r", gettext("remove permissions recursively"),
4822 };
4823 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4824 size_t allow_size = unallow_size - 2;
4825 const char *props[ZFS_NUM_PROPS];
4826 int i;
4827 size_t count = 0;
4828 FILE *fp = requested ? stdout : stderr;
4829 zprop_desc_t *pdtbl = zfs_prop_get_table();
4830 const char *fmt = gettext("%-16s %-14s\t%s\n");
4831
4832 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4833 HELP_ALLOW));
4834 (void) fprintf(fp, gettext("Options:\n"));
4835 for (i = 0; i < (un ? unallow_size : allow_size); i++) {
4836 const char *opt = opt_desc[i++];
4837 const char *optdsc = opt_desc[i];
4838 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4839 }
4840
4841 (void) fprintf(fp, gettext("\nThe following permissions are "
4842 "supported:\n\n"));
4843 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4844 gettext("NOTES"));
4845 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4846 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4847 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4848 const char *perm_type = deleg_perm_type(perm_note);
4849 const char *perm_comment = deleg_perm_comment(perm_note);
4850 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4851 }
4852
4853 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4854 zprop_desc_t *pd = &pdtbl[i];
4855 if (pd->pd_visible != B_TRUE)
4856 continue;
4857
4858 if (pd->pd_attr == PROP_READONLY)
4859 continue;
4860
4861 props[count++] = pd->pd_name;
4862 }
4863 props[count] = NULL;
4864
4865 qsort(props, count, sizeof (char *), prop_cmp);
4866
4867 for (i = 0; i < count; i++)
4868 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4869
4870 if (msg != NULL)
4871 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4872
4873 exit(requested ? 0 : 2);
4874 }
4875
4876 static inline const char *
4877 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4878 char **permsp)
4879 {
4880 if (un && argc == expected_argc - 1)
4881 *permsp = NULL;
4882 else if (argc == expected_argc)
4883 *permsp = argv[argc - 2];
4884 else
4885 allow_usage(un, B_FALSE,
4886 gettext("wrong number of parameters\n"));
4887
4888 return (argv[argc - 1]);
4889 }
4890
4891 static void
4892 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4893 {
4894 int uge_sum = opts->user + opts->group + opts->everyone;
4895 int csuge_sum = opts->create + opts->set + uge_sum;
4896 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4897 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4898
4899 if (uge_sum > 1)
4900 allow_usage(un, B_FALSE,
4901 gettext("-u, -g, and -e are mutually exclusive\n"));
4902
4903 if (opts->prt_usage) {
4904 if (argc == 0 && all_sum == 0)
4905 allow_usage(un, B_TRUE, NULL);
4906 else
4907 usage(B_FALSE);
4908 }
4909
4910 if (opts->set) {
4911 if (csuge_sum > 1)
4912 allow_usage(un, B_FALSE,
4913 gettext("invalid options combined with -s\n"));
4914
4915 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4916 if (argv[0][0] != '@')
4917 allow_usage(un, B_FALSE,
4918 gettext("invalid set name: missing '@' prefix\n"));
4919 opts->who = argv[0];
4920 } else if (opts->create) {
4921 if (ldcsuge_sum > 1)
4922 allow_usage(un, B_FALSE,
4923 gettext("invalid options combined with -c\n"));
4924 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4925 } else if (opts->everyone) {
4926 if (csuge_sum > 1)
4927 allow_usage(un, B_FALSE,
4928 gettext("invalid options combined with -e\n"));
4929 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4930 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4931 == 0) {
4932 opts->everyone = B_TRUE;
4933 argc--;
4934 argv++;
4935 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4936 } else if (argc == 1 && !un) {
4937 opts->prt_perms = B_TRUE;
4938 opts->dataset = argv[argc-1];
4939 } else {
4940 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4941 opts->who = argv[0];
4942 }
4943
4944 if (!opts->local && !opts->descend) {
4945 opts->local = B_TRUE;
4946 opts->descend = B_TRUE;
4947 }
4948 }
4949
4950 static void
4951 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4952 const char *who, char *perms, nvlist_t *top_nvl)
4953 {
4954 int i;
4955 char ld[2] = { '\0', '\0' };
4956 char who_buf[MAXNAMELEN + 32];
4957 char base_type = ZFS_DELEG_WHO_UNKNOWN;
4958 char set_type = ZFS_DELEG_WHO_UNKNOWN;
4959 nvlist_t *base_nvl = NULL;
4960 nvlist_t *set_nvl = NULL;
4961 nvlist_t *nvl;
4962
4963 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4964 nomem();
4965 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4966 nomem();
4967
4968 switch (type) {
4969 case ZFS_DELEG_NAMED_SET_SETS:
4970 case ZFS_DELEG_NAMED_SET:
4971 set_type = ZFS_DELEG_NAMED_SET_SETS;
4972 base_type = ZFS_DELEG_NAMED_SET;
4973 ld[0] = ZFS_DELEG_NA;
4974 break;
4975 case ZFS_DELEG_CREATE_SETS:
4976 case ZFS_DELEG_CREATE:
4977 set_type = ZFS_DELEG_CREATE_SETS;
4978 base_type = ZFS_DELEG_CREATE;
4979 ld[0] = ZFS_DELEG_NA;
4980 break;
4981 case ZFS_DELEG_USER_SETS:
4982 case ZFS_DELEG_USER:
4983 set_type = ZFS_DELEG_USER_SETS;
4984 base_type = ZFS_DELEG_USER;
4985 if (local)
4986 ld[0] = ZFS_DELEG_LOCAL;
4987 if (descend)
4988 ld[1] = ZFS_DELEG_DESCENDENT;
4989 break;
4990 case ZFS_DELEG_GROUP_SETS:
4991 case ZFS_DELEG_GROUP:
4992 set_type = ZFS_DELEG_GROUP_SETS;
4993 base_type = ZFS_DELEG_GROUP;
4994 if (local)
4995 ld[0] = ZFS_DELEG_LOCAL;
4996 if (descend)
4997 ld[1] = ZFS_DELEG_DESCENDENT;
4998 break;
4999 case ZFS_DELEG_EVERYONE_SETS:
5000 case ZFS_DELEG_EVERYONE:
5001 set_type = ZFS_DELEG_EVERYONE_SETS;
5002 base_type = ZFS_DELEG_EVERYONE;
5003 if (local)
5004 ld[0] = ZFS_DELEG_LOCAL;
5005 if (descend)
5006 ld[1] = ZFS_DELEG_DESCENDENT;
5007 default:
5008 break;
5009 }
5010
5011 if (perms != NULL) {
5012 char *curr = perms;
5013 char *end = curr + strlen(perms);
5014
5015 while (curr < end) {
5016 char *delim = strchr(curr, ',');
5017 if (delim == NULL)
5018 delim = end;
5019 else
5020 *delim = '\0';
5021
5022 if (curr[0] == '@')
5023 nvl = set_nvl;
5024 else
5025 nvl = base_nvl;
5026
5027 (void) nvlist_add_boolean(nvl, curr);
5028 if (delim != end)
5029 *delim = ',';
5030 curr = delim + 1;
5031 }
5032
5033 for (i = 0; i < 2; i++) {
5034 char locality = ld[i];
5035 if (locality == 0)
5036 continue;
5037
5038 if (!nvlist_empty(base_nvl)) {
5039 if (who != NULL)
5040 (void) snprintf(who_buf,
5041 sizeof (who_buf), "%c%c$%s",
5042 base_type, locality, who);
5043 else
5044 (void) snprintf(who_buf,
5045 sizeof (who_buf), "%c%c$",
5046 base_type, locality);
5047
5048 (void) nvlist_add_nvlist(top_nvl, who_buf,
5049 base_nvl);
5050 }
5051
5052
5053 if (!nvlist_empty(set_nvl)) {
5054 if (who != NULL)
5055 (void) snprintf(who_buf,
5056 sizeof (who_buf), "%c%c$%s",
5057 set_type, locality, who);
5058 else
5059 (void) snprintf(who_buf,
5060 sizeof (who_buf), "%c%c$",
5061 set_type, locality);
5062
5063 (void) nvlist_add_nvlist(top_nvl, who_buf,
5064 set_nvl);
5065 }
5066 }
5067 } else {
5068 for (i = 0; i < 2; i++) {
5069 char locality = ld[i];
5070 if (locality == 0)
5071 continue;
5072
5073 if (who != NULL)
5074 (void) snprintf(who_buf, sizeof (who_buf),
5075 "%c%c$%s", base_type, locality, who);
5076 else
5077 (void) snprintf(who_buf, sizeof (who_buf),
5078 "%c%c$", base_type, locality);
5079 (void) nvlist_add_boolean(top_nvl, who_buf);
5080
5081 if (who != NULL)
5082 (void) snprintf(who_buf, sizeof (who_buf),
5083 "%c%c$%s", set_type, locality, who);
5084 else
5085 (void) snprintf(who_buf, sizeof (who_buf),
5086 "%c%c$", set_type, locality);
5087 (void) nvlist_add_boolean(top_nvl, who_buf);
5088 }
5089 }
5090 }
5091
5092 static int
5093 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5094 {
5095 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5096 nomem();
5097
5098 if (opts->set) {
5099 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5100 opts->descend, opts->who, opts->perms, *nvlp);
5101 } else if (opts->create) {
5102 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5103 opts->descend, NULL, opts->perms, *nvlp);
5104 } else if (opts->everyone) {
5105 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5106 opts->descend, NULL, opts->perms, *nvlp);
5107 } else {
5108 char *curr = opts->who;
5109 char *end = curr + strlen(curr);
5110
5111 while (curr < end) {
5112 const char *who;
5113 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5114 char *endch;
5115 char *delim = strchr(curr, ',');
5116 char errbuf[256];
5117 char id[64];
5118 struct passwd *p = NULL;
5119 struct group *g = NULL;
5120
5121 uid_t rid;
5122 if (delim == NULL)
5123 delim = end;
5124 else
5125 *delim = '\0';
5126
5127 rid = (uid_t)strtol(curr, &endch, 0);
5128 if (opts->user) {
5129 who_type = ZFS_DELEG_USER;
5130 if (*endch != '\0')
5131 p = getpwnam(curr);
5132 else
5133 p = getpwuid(rid);
5134
5135 if (p != NULL)
5136 rid = p->pw_uid;
5137 else {
5138 (void) snprintf(errbuf, 256, gettext(
5139 "invalid user %s"), curr);
5140 allow_usage(un, B_TRUE, errbuf);
5141 }
5142 } else if (opts->group) {
5143 who_type = ZFS_DELEG_GROUP;
5144 if (*endch != '\0')
5145 g = getgrnam(curr);
5146 else
5147 g = getgrgid(rid);
5148
5149 if (g != NULL)
5150 rid = g->gr_gid;
5151 else {
5152 (void) snprintf(errbuf, 256, gettext(
5153 "invalid group %s"), curr);
5154 allow_usage(un, B_TRUE, errbuf);
5155 }
5156 } else {
5157 if (*endch != '\0') {
5158 p = getpwnam(curr);
5159 } else {
5160 p = getpwuid(rid);
5161 }
5162
5163 if (p == NULL) {
5164 if (*endch != '\0') {
5165 g = getgrnam(curr);
5166 } else {
5167 g = getgrgid(rid);
5168 }
5169 }
5170
5171 if (p != NULL) {
5172 who_type = ZFS_DELEG_USER;
5173 rid = p->pw_uid;
5174 } else if (g != NULL) {
5175 who_type = ZFS_DELEG_GROUP;
5176 rid = g->gr_gid;
5177 } else {
5178 (void) snprintf(errbuf, 256, gettext(
5179 "invalid user/group %s"), curr);
5180 allow_usage(un, B_TRUE, errbuf);
5181 }
5182 }
5183
5184 (void) sprintf(id, "%u", rid);
5185 who = id;
5186
5187 store_allow_perm(who_type, opts->local,
5188 opts->descend, who, opts->perms, *nvlp);
5189 curr = delim + 1;
5190 }
5191 }
5192
5193 return (0);
5194 }
5195
5196 static void
5197 print_set_creat_perms(uu_avl_t *who_avl)
5198 {
5199 const char *sc_title[] = {
5200 gettext("Permission sets:\n"),
5201 gettext("Create time permissions:\n"),
5202 NULL
5203 };
5204 const char **title_ptr = sc_title;
5205 who_perm_node_t *who_node = NULL;
5206 int prev_weight = -1;
5207
5208 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5209 who_node = uu_avl_next(who_avl, who_node)) {
5210 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5211 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5212 const char *who_name = who_node->who_perm.who_name;
5213 int weight = who_type2weight(who_type);
5214 boolean_t first = B_TRUE;
5215 deleg_perm_node_t *deleg_node;
5216
5217 if (prev_weight != weight) {
5218 (void) printf("%s", *title_ptr++);
5219 prev_weight = weight;
5220 }
5221
5222 if (who_name == NULL || strnlen(who_name, 1) == 0)
5223 (void) printf("\t");
5224 else
5225 (void) printf("\t%s ", who_name);
5226
5227 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5228 deleg_node = uu_avl_next(avl, deleg_node)) {
5229 if (first) {
5230 (void) printf("%s",
5231 deleg_node->dpn_perm.dp_name);
5232 first = B_FALSE;
5233 } else
5234 (void) printf(",%s",
5235 deleg_node->dpn_perm.dp_name);
5236 }
5237
5238 (void) printf("\n");
5239 }
5240 }
5241
5242 static void inline
5243 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5244 const char *title)
5245 {
5246 who_perm_node_t *who_node = NULL;
5247 boolean_t prt_title = B_TRUE;
5248 uu_avl_walk_t *walk;
5249
5250 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5251 nomem();
5252
5253 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5254 const char *who_name = who_node->who_perm.who_name;
5255 const char *nice_who_name = who_node->who_perm.who_ug_name;
5256 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5257 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5258 char delim = ' ';
5259 deleg_perm_node_t *deleg_node;
5260 boolean_t prt_who = B_TRUE;
5261
5262 for (deleg_node = uu_avl_first(avl);
5263 deleg_node != NULL;
5264 deleg_node = uu_avl_next(avl, deleg_node)) {
5265 if (local != deleg_node->dpn_perm.dp_local ||
5266 descend != deleg_node->dpn_perm.dp_descend)
5267 continue;
5268
5269 if (prt_who) {
5270 const char *who = NULL;
5271 if (prt_title) {
5272 prt_title = B_FALSE;
5273 (void) printf("%s", title);
5274 }
5275
5276 switch (who_type) {
5277 case ZFS_DELEG_USER_SETS:
5278 case ZFS_DELEG_USER:
5279 who = gettext("user");
5280 if (nice_who_name)
5281 who_name = nice_who_name;
5282 break;
5283 case ZFS_DELEG_GROUP_SETS:
5284 case ZFS_DELEG_GROUP:
5285 who = gettext("group");
5286 if (nice_who_name)
5287 who_name = nice_who_name;
5288 break;
5289 case ZFS_DELEG_EVERYONE_SETS:
5290 case ZFS_DELEG_EVERYONE:
5291 who = gettext("everyone");
5292 who_name = NULL;
5293 default:
5294 break;
5295 }
5296
5297 prt_who = B_FALSE;
5298 if (who_name == NULL)
5299 (void) printf("\t%s", who);
5300 else
5301 (void) printf("\t%s %s", who, who_name);
5302 }
5303
5304 (void) printf("%c%s", delim,
5305 deleg_node->dpn_perm.dp_name);
5306 delim = ',';
5307 }
5308
5309 if (!prt_who)
5310 (void) printf("\n");
5311 }
5312
5313 uu_avl_walk_end(walk);
5314 }
5315
5316 static void
5317 print_fs_perms(fs_perm_set_t *fspset)
5318 {
5319 fs_perm_node_t *node = NULL;
5320 char buf[MAXNAMELEN + 32];
5321 const char *dsname = buf;
5322
5323 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5324 node = uu_list_next(fspset->fsps_list, node)) {
5325 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5326 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5327 int left = 0;
5328
5329 (void) snprintf(buf, sizeof (buf),
5330 gettext("---- Permissions on %s "),
5331 node->fspn_fsperm.fsp_name);
5332 (void) printf("%s", dsname);
5333 left = 70 - strlen(buf);
5334 while (left-- > 0)
5335 (void) printf("-");
5336 (void) printf("\n");
5337
5338 print_set_creat_perms(sc_avl);
5339 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5340 gettext("Local permissions:\n"));
5341 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5342 gettext("Descendent permissions:\n"));
5343 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5344 gettext("Local+Descendent permissions:\n"));
5345 }
5346 }
5347
5348 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5349
5350 struct deleg_perms {
5351 boolean_t un;
5352 nvlist_t *nvl;
5353 };
5354
5355 static int
5356 set_deleg_perms(zfs_handle_t *zhp, void *data)
5357 {
5358 struct deleg_perms *perms = (struct deleg_perms *)data;
5359 zfs_type_t zfs_type = zfs_get_type(zhp);
5360
5361 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5362 return (0);
5363
5364 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5365 }
5366
5367 static int
5368 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5369 {
5370 zfs_handle_t *zhp;
5371 nvlist_t *perm_nvl = NULL;
5372 nvlist_t *update_perm_nvl = NULL;
5373 int error = 1;
5374 int c;
5375 struct allow_opts opts = { 0 };
5376
5377 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5378
5379 /* check opts */
5380 while ((c = getopt(argc, argv, optstr)) != -1) {
5381 switch (c) {
5382 case 'l':
5383 opts.local = B_TRUE;
5384 break;
5385 case 'd':
5386 opts.descend = B_TRUE;
5387 break;
5388 case 'u':
5389 opts.user = B_TRUE;
5390 break;
5391 case 'g':
5392 opts.group = B_TRUE;
5393 break;
5394 case 'e':
5395 opts.everyone = B_TRUE;
5396 break;
5397 case 's':
5398 opts.set = B_TRUE;
5399 break;
5400 case 'c':
5401 opts.create = B_TRUE;
5402 break;
5403 case 'r':
5404 opts.recursive = B_TRUE;
5405 break;
5406 case ':':
5407 (void) fprintf(stderr, gettext("missing argument for "
5408 "'%c' option\n"), optopt);
5409 usage(B_FALSE);
5410 break;
5411 case 'h':
5412 opts.prt_usage = B_TRUE;
5413 break;
5414 case '?':
5415 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5416 optopt);
5417 usage(B_FALSE);
5418 }
5419 }
5420
5421 argc -= optind;
5422 argv += optind;
5423
5424 /* check arguments */
5425 parse_allow_args(argc, argv, un, &opts);
5426
5427 /* try to open the dataset */
5428 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5429 ZFS_TYPE_VOLUME)) == NULL) {
5430 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5431 opts.dataset);
5432 return (-1);
5433 }
5434
5435 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5436 goto cleanup2;
5437
5438 fs_perm_set_init(&fs_perm_set);
5439 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5440 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5441 goto cleanup1;
5442 }
5443
5444 if (opts.prt_perms)
5445 print_fs_perms(&fs_perm_set);
5446 else {
5447 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5448 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5449 goto cleanup0;
5450
5451 if (un && opts.recursive) {
5452 struct deleg_perms data = { un, update_perm_nvl };
5453 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5454 &data) != 0)
5455 goto cleanup0;
5456 }
5457 }
5458
5459 error = 0;
5460
5461 cleanup0:
5462 nvlist_free(perm_nvl);
5463 nvlist_free(update_perm_nvl);
5464 cleanup1:
5465 fs_perm_set_fini(&fs_perm_set);
5466 cleanup2:
5467 zfs_close(zhp);
5468
5469 return (error);
5470 }
5471
5472 static int
5473 zfs_do_allow(int argc, char **argv)
5474 {
5475 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5476 }
5477
5478 static int
5479 zfs_do_unallow(int argc, char **argv)
5480 {
5481 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5482 }
5483
5484 static int
5485 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5486 {
5487 int errors = 0;
5488 int i;
5489 const char *tag;
5490 boolean_t recursive = B_FALSE;
5491 const char *opts = holding ? "rt" : "r";
5492 int c;
5493
5494 /* check options */
5495 while ((c = getopt(argc, argv, opts)) != -1) {
5496 switch (c) {
5497 case 'r':
5498 recursive = B_TRUE;
5499 break;
5500 case '?':
5501 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5502 optopt);
5503 usage(B_FALSE);
5504 }
5505 }
5506
5507 argc -= optind;
5508 argv += optind;
5509
5510 /* check number of arguments */
5511 if (argc < 2)
5512 usage(B_FALSE);
5513
5514 tag = argv[0];
5515 --argc;
5516 ++argv;
5517
5518 if (holding && tag[0] == '.') {
5519 /* tags starting with '.' are reserved for libzfs */
5520 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5521 usage(B_FALSE);
5522 }
5523
5524 for (i = 0; i < argc; ++i) {
5525 zfs_handle_t *zhp;
5526 char parent[ZFS_MAX_DATASET_NAME_LEN];
5527 const char *delim;
5528 char *path = argv[i];
5529
5530 delim = strchr(path, '@');
5531 if (delim == NULL) {
5532 (void) fprintf(stderr,
5533 gettext("'%s' is not a snapshot\n"), path);
5534 ++errors;
5535 continue;
5536 }
5537 (void) strncpy(parent, path, delim - path);
5538 parent[delim - path] = '\0';
5539
5540 zhp = zfs_open(g_zfs, parent,
5541 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5542 if (zhp == NULL) {
5543 ++errors;
5544 continue;
5545 }
5546 if (holding) {
5547 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5548 ++errors;
5549 } else {
5550 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5551 ++errors;
5552 }
5553 zfs_close(zhp);
5554 }
5555
5556 return (errors != 0);
5557 }
5558
5559 /*
5560 * zfs hold [-r] [-t] <tag> <snap> ...
5561 *
5562 * -r Recursively hold
5563 *
5564 * Apply a user-hold with the given tag to the list of snapshots.
5565 */
5566 static int
5567 zfs_do_hold(int argc, char **argv)
5568 {
5569 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5570 }
5571
5572 /*
5573 * zfs release [-r] <tag> <snap> ...
5574 *
5575 * -r Recursively release
5576 *
5577 * Release a user-hold with the given tag from the list of snapshots.
5578 */
5579 static int
5580 zfs_do_release(int argc, char **argv)
5581 {
5582 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5583 }
5584
5585 typedef struct holds_cbdata {
5586 boolean_t cb_recursive;
5587 const char *cb_snapname;
5588 nvlist_t **cb_nvlp;
5589 size_t cb_max_namelen;
5590 size_t cb_max_taglen;
5591 } holds_cbdata_t;
5592
5593 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5594 #define DATETIME_BUF_LEN (32)
5595 /*
5596 *
5597 */
5598 static void
5599 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5600 {
5601 int i;
5602 nvpair_t *nvp = NULL;
5603 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5604 const char *col;
5605
5606 if (!scripted) {
5607 for (i = 0; i < 3; i++) {
5608 col = gettext(hdr_cols[i]);
5609 if (i < 2)
5610 (void) printf("%-*s ", i ? tagwidth : nwidth,
5611 col);
5612 else
5613 (void) printf("%s\n", col);
5614 }
5615 }
5616
5617 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5618 char *zname = nvpair_name(nvp);
5619 nvlist_t *nvl2;
5620 nvpair_t *nvp2 = NULL;
5621 (void) nvpair_value_nvlist(nvp, &nvl2);
5622 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5623 char tsbuf[DATETIME_BUF_LEN];
5624 char *tagname = nvpair_name(nvp2);
5625 uint64_t val = 0;
5626 time_t time;
5627 struct tm t;
5628 char sep = scripted ? '\t' : ' ';
5629 int sepnum = scripted ? 1 : 2;
5630
5631 (void) nvpair_value_uint64(nvp2, &val);
5632 time = (time_t)val;
5633 (void) localtime_r(&time, &t);
5634 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5635 gettext(STRFTIME_FMT_STR), &t);
5636
5637 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5638 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5639 }
5640 }
5641 }
5642
5643 /*
5644 * Generic callback function to list a dataset or snapshot.
5645 */
5646 static int
5647 holds_callback(zfs_handle_t *zhp, void *data)
5648 {
5649 holds_cbdata_t *cbp = data;
5650 nvlist_t *top_nvl = *cbp->cb_nvlp;
5651 nvlist_t *nvl = NULL;
5652 nvpair_t *nvp = NULL;
5653 const char *zname = zfs_get_name(zhp);
5654 size_t znamelen = strlen(zname);
5655
5656 if (cbp->cb_recursive) {
5657 const char *snapname;
5658 char *delim = strchr(zname, '@');
5659 if (delim == NULL)
5660 return (0);
5661
5662 snapname = delim + 1;
5663 if (strcmp(cbp->cb_snapname, snapname))
5664 return (0);
5665 }
5666
5667 if (zfs_get_holds(zhp, &nvl) != 0)
5668 return (-1);
5669
5670 if (znamelen > cbp->cb_max_namelen)
5671 cbp->cb_max_namelen = znamelen;
5672
5673 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5674 const char *tag = nvpair_name(nvp);
5675 size_t taglen = strlen(tag);
5676 if (taglen > cbp->cb_max_taglen)
5677 cbp->cb_max_taglen = taglen;
5678 }
5679
5680 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5681 }
5682
5683 /*
5684 * zfs holds [-r] <snap> ...
5685 *
5686 * -r Recursively hold
5687 */
5688 static int
5689 zfs_do_holds(int argc, char **argv)
5690 {
5691 int errors = 0;
5692 int c;
5693 int i;
5694 boolean_t scripted = B_FALSE;
5695 boolean_t recursive = B_FALSE;
5696 const char *opts = "rH";
5697 nvlist_t *nvl;
5698
5699 int types = ZFS_TYPE_SNAPSHOT;
5700 holds_cbdata_t cb = { 0 };
5701
5702 int limit = 0;
5703 int ret = 0;
5704 int flags = 0;
5705
5706 /* check options */
5707 while ((c = getopt(argc, argv, opts)) != -1) {
5708 switch (c) {
5709 case 'r':
5710 recursive = B_TRUE;
5711 break;
5712 case 'H':
5713 scripted = B_TRUE;
5714 break;
5715 case '?':
5716 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5717 optopt);
5718 usage(B_FALSE);
5719 }
5720 }
5721
5722 if (recursive) {
5723 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5724 flags |= ZFS_ITER_RECURSE;
5725 }
5726
5727 argc -= optind;
5728 argv += optind;
5729
5730 /* check number of arguments */
5731 if (argc < 1)
5732 usage(B_FALSE);
5733
5734 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5735 nomem();
5736
5737 for (i = 0; i < argc; ++i) {
5738 char *snapshot = argv[i];
5739 const char *delim;
5740 const char *snapname;
5741
5742 delim = strchr(snapshot, '@');
5743 if (delim == NULL) {
5744 (void) fprintf(stderr,
5745 gettext("'%s' is not a snapshot\n"), snapshot);
5746 ++errors;
5747 continue;
5748 }
5749 snapname = delim + 1;
5750 if (recursive)
5751 snapshot[delim - snapshot] = '\0';
5752
5753 cb.cb_recursive = recursive;
5754 cb.cb_snapname = snapname;
5755 cb.cb_nvlp = &nvl;
5756
5757 /*
5758 * 1. collect holds data, set format options
5759 */
5760 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5761 holds_callback, &cb);
5762 if (ret != 0)
5763 ++errors;
5764 }
5765
5766 /*
5767 * 2. print holds data
5768 */
5769 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5770
5771 if (nvlist_empty(nvl))
5772 (void) fprintf(stderr, gettext("no datasets available\n"));
5773
5774 nvlist_free(nvl);
5775
5776 return (0 != errors);
5777 }
5778
5779 #define CHECK_SPINNER 30
5780 #define SPINNER_TIME 3 /* seconds */
5781 #define MOUNT_TIME 5 /* seconds */
5782
5783 static int
5784 get_one_dataset(zfs_handle_t *zhp, void *data)
5785 {
5786 static char *spin[] = { "-", "\\", "|", "/" };
5787 static int spinval = 0;
5788 static int spincheck = 0;
5789 static time_t last_spin_time = (time_t)0;
5790 get_all_cb_t *cbp = data;
5791 zfs_type_t type = zfs_get_type(zhp);
5792
5793 if (cbp->cb_verbose) {
5794 if (--spincheck < 0) {
5795 time_t now = time(NULL);
5796 if (last_spin_time + SPINNER_TIME < now) {
5797 update_progress(spin[spinval++ % 4]);
5798 last_spin_time = now;
5799 }
5800 spincheck = CHECK_SPINNER;
5801 }
5802 }
5803
5804 /*
5805 * Iterate over any nested datasets.
5806 */
5807 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5808 zfs_close(zhp);
5809 return (1);
5810 }
5811
5812 /*
5813 * Skip any datasets whose type does not match.
5814 */
5815 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5816 zfs_close(zhp);
5817 return (0);
5818 }
5819 libzfs_add_handle(cbp, zhp);
5820 assert(cbp->cb_used <= cbp->cb_alloc);
5821
5822 return (0);
5823 }
5824
5825 static void
5826 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5827 {
5828 get_all_cb_t cb = { 0 };
5829 cb.cb_verbose = verbose;
5830 cb.cb_getone = get_one_dataset;
5831
5832 if (verbose)
5833 set_progress_header(gettext("Reading ZFS config"));
5834 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5835
5836 *dslist = cb.cb_handles;
5837 *count = cb.cb_used;
5838
5839 if (verbose)
5840 finish_progress(gettext("done."));
5841 }
5842
5843 /*
5844 * Generic callback for sharing or mounting filesystems. Because the code is so
5845 * similar, we have a common function with an extra parameter to determine which
5846 * mode we are using.
5847 */
5848 #define OP_SHARE 0x1
5849 #define OP_MOUNT 0x2
5850
5851 /*
5852 * Share or mount a dataset.
5853 */
5854 static int
5855 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5856 boolean_t explicit, const char *options)
5857 {
5858 char mountpoint[ZFS_MAXPROPLEN];
5859 char shareopts[ZFS_MAXPROPLEN];
5860 char smbshareopts[ZFS_MAXPROPLEN];
5861 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5862 struct mnttab mnt;
5863 uint64_t zoned, canmount;
5864 boolean_t shared_nfs, shared_smb;
5865
5866 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
5867
5868 /*
5869 * Check to make sure we can mount/share this dataset. If we
5870 * are in the global zone and the filesystem is exported to a
5871 * local zone, or if we are in a local zone and the
5872 * filesystem is not exported, then it is an error.
5873 */
5874 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
5875
5876 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5877 if (!explicit)
5878 return (0);
5879
5880 (void) fprintf(stderr, gettext("cannot %s '%s': "
5881 "dataset is exported to a local zone\n"), cmdname,
5882 zfs_get_name(zhp));
5883 return (1);
5884
5885 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5886 if (!explicit)
5887 return (0);
5888
5889 (void) fprintf(stderr, gettext("cannot %s '%s': "
5890 "permission denied\n"), cmdname,
5891 zfs_get_name(zhp));
5892 return (1);
5893 }
5894
5895 /*
5896 * Ignore any filesystems which don't apply to us. This
5897 * includes those with a legacy mountpoint, or those with
5898 * legacy share options.
5899 */
5900 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5901 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5902 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5903 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5904 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5905 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5906
5907 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5908 strcmp(smbshareopts, "off") == 0) {
5909 if (!explicit)
5910 return (0);
5911
5912 (void) fprintf(stderr, gettext("cannot share '%s': "
5913 "legacy share\n"), zfs_get_name(zhp));
5914 (void) fprintf(stderr, gettext("use share(1M) to "
5915 "share this filesystem, or set "
5916 "sharenfs property on\n"));
5917 return (1);
5918 }
5919
5920 /*
5921 * We cannot share or mount legacy filesystems. If the
5922 * shareopts is non-legacy but the mountpoint is legacy, we
5923 * treat it as a legacy share.
5924 */
5925 if (strcmp(mountpoint, "legacy") == 0) {
5926 if (!explicit)
5927 return (0);
5928
5929 (void) fprintf(stderr, gettext("cannot %s '%s': "
5930 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5931 (void) fprintf(stderr, gettext("use %s(1M) to "
5932 "%s this filesystem\n"), cmdname, cmdname);
5933 return (1);
5934 }
5935
5936 if (strcmp(mountpoint, "none") == 0) {
5937 if (!explicit)
5938 return (0);
5939
5940 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5941 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5942 return (1);
5943 }
5944
5945 /*
5946 * canmount explicit outcome
5947 * on no pass through
5948 * on yes pass through
5949 * off no return 0
5950 * off yes display error, return 1
5951 * noauto no return 0
5952 * noauto yes pass through
5953 */
5954 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5955 if (canmount == ZFS_CANMOUNT_OFF) {
5956 if (!explicit)
5957 return (0);
5958
5959 (void) fprintf(stderr, gettext("cannot %s '%s': "
5960 "'canmount' property is set to 'off'\n"), cmdname,
5961 zfs_get_name(zhp));
5962 return (1);
5963 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5964 return (0);
5965 }
5966
5967 /*
5968 * If this filesystem is inconsistent and has a receive resume
5969 * token, we can not mount it.
5970 */
5971 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
5972 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
5973 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
5974 if (!explicit)
5975 return (0);
5976
5977 (void) fprintf(stderr, gettext("cannot %s '%s': "
5978 "Contains partially-completed state from "
5979 "\"zfs receive -r\", which can be resumed with "
5980 "\"zfs send -t\"\n"),
5981 cmdname, zfs_get_name(zhp));
5982 return (1);
5983 }
5984
5985 /*
5986 * At this point, we have verified that the mountpoint and/or
5987 * shareopts are appropriate for auto management. If the
5988 * filesystem is already mounted or shared, return (failing
5989 * for explicit requests); otherwise mount or share the
5990 * filesystem.
5991 */
5992 switch (op) {
5993 case OP_SHARE:
5994
5995 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5996 shared_smb = zfs_is_shared_smb(zhp, NULL);
5997
5998 if ((shared_nfs && shared_smb) ||
5999 ((shared_nfs && strcmp(shareopts, "on") == 0) &&
6000 (strcmp(smbshareopts, "off") == 0)) ||
6001 ((shared_smb && strcmp(smbshareopts, "on") == 0) &&
6002 (strcmp(shareopts, "off") == 0))) {
6003 if (!explicit)
6004 return (0);
6005
6006 (void) fprintf(stderr, gettext("cannot share "
6007 "'%s': filesystem already shared\n"),
6008 zfs_get_name(zhp));
6009 return (1);
6010 }
6011
6012 if (!zfs_is_mounted(zhp, NULL) &&
6013 zfs_mount(zhp, NULL, 0) != 0)
6014 return (1);
6015
6016 if (protocol == NULL) {
6017 if (zfs_shareall(zhp) != 0)
6018 return (1);
6019 } else if (strcmp(protocol, "nfs") == 0) {
6020 if (zfs_share_nfs(zhp))
6021 return (1);
6022 } else if (strcmp(protocol, "smb") == 0) {
6023 if (zfs_share_smb(zhp))
6024 return (1);
6025 } else {
6026 (void) fprintf(stderr, gettext("cannot share "
6027 "'%s': invalid share type '%s' "
6028 "specified\n"),
6029 zfs_get_name(zhp), protocol);
6030 return (1);
6031 }
6032
6033 break;
6034
6035 case OP_MOUNT:
6036 if (options == NULL)
6037 mnt.mnt_mntopts = "";
6038 else
6039 mnt.mnt_mntopts = (char *)options;
6040
6041 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
6042 zfs_is_mounted(zhp, NULL)) {
6043 if (!explicit)
6044 return (0);
6045
6046 (void) fprintf(stderr, gettext("cannot mount "
6047 "'%s': filesystem already mounted\n"),
6048 zfs_get_name(zhp));
6049 return (1);
6050 }
6051
6052 if (zfs_mount(zhp, options, flags) != 0)
6053 return (1);
6054 break;
6055 }
6056
6057 return (0);
6058 }
6059
6060 /*
6061 * Reports progress in the form "(current/total)". Not thread-safe.
6062 */
6063 static void
6064 report_mount_progress(int current, int total)
6065 {
6066 static time_t last_progress_time = 0;
6067 time_t now = time(NULL);
6068 char info[32];
6069
6070 /* report 1..n instead of 0..n-1 */
6071 ++current;
6072
6073 /* display header if we're here for the first time */
6074 if (current == 1) {
6075 set_progress_header(gettext("Mounting ZFS filesystems"));
6076 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6077 /* too soon to report again */
6078 return;
6079 }
6080
6081 last_progress_time = now;
6082
6083 (void) sprintf(info, "(%d/%d)", current, total);
6084
6085 if (current == total)
6086 finish_progress(info);
6087 else
6088 update_progress(info);
6089 }
6090
6091 static void
6092 append_options(char *mntopts, char *newopts)
6093 {
6094 int len = strlen(mntopts);
6095
6096 /* original length plus new string to append plus 1 for the comma */
6097 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6098 (void) fprintf(stderr, gettext("the opts argument for "
6099 "'%s' option is too long (more than %d chars)\n"),
6100 "-o", MNT_LINE_MAX);
6101 usage(B_FALSE);
6102 }
6103
6104 if (*mntopts)
6105 mntopts[len++] = ',';
6106
6107 (void) strcpy(&mntopts[len], newopts);
6108 }
6109
6110 static int
6111 share_mount(int op, int argc, char **argv)
6112 {
6113 int do_all = 0;
6114 boolean_t verbose = B_FALSE;
6115 int c, ret = 0;
6116 char *options = NULL;
6117 int flags = 0;
6118
6119 /* check options */
6120 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
6121 != -1) {
6122 switch (c) {
6123 case 'a':
6124 do_all = 1;
6125 break;
6126 case 'v':
6127 verbose = B_TRUE;
6128 break;
6129 case 'o':
6130 if (*optarg == '\0') {
6131 (void) fprintf(stderr, gettext("empty mount "
6132 "options (-o) specified\n"));
6133 usage(B_FALSE);
6134 }
6135
6136 if (options == NULL)
6137 options = safe_malloc(MNT_LINE_MAX + 1);
6138
6139 /* option validation is done later */
6140 append_options(options, optarg);
6141 break;
6142 case 'O':
6143 flags |= MS_OVERLAY;
6144 break;
6145 case ':':
6146 (void) fprintf(stderr, gettext("missing argument for "
6147 "'%c' option\n"), optopt);
6148 usage(B_FALSE);
6149 break;
6150 case '?':
6151 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6152 optopt);
6153 usage(B_FALSE);
6154 }
6155 }
6156
6157 argc -= optind;
6158 argv += optind;
6159
6160 /* check number of arguments */
6161 if (do_all) {
6162 zfs_handle_t **dslist = NULL;
6163 size_t i, count = 0;
6164 char *protocol = NULL;
6165
6166 if (op == OP_SHARE && argc > 0) {
6167 if (strcmp(argv[0], "nfs") != 0 &&
6168 strcmp(argv[0], "smb") != 0) {
6169 (void) fprintf(stderr, gettext("share type "
6170 "must be 'nfs' or 'smb'\n"));
6171 usage(B_FALSE);
6172 }
6173 protocol = argv[0];
6174 argc--;
6175 argv++;
6176 }
6177
6178 if (argc != 0) {
6179 (void) fprintf(stderr, gettext("too many arguments\n"));
6180 usage(B_FALSE);
6181 }
6182
6183 start_progress_timer();
6184 get_all_datasets(&dslist, &count, verbose);
6185
6186 if (count == 0) {
6187 if (options != NULL)
6188 free(options);
6189 return (0);
6190 }
6191
6192 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
6193
6194 for (i = 0; i < count; i++) {
6195 if (verbose)
6196 report_mount_progress(i, count);
6197
6198 if (share_mount_one(dslist[i], op, flags, protocol,
6199 B_FALSE, options) != 0)
6200 ret = 1;
6201 zfs_close(dslist[i]);
6202 }
6203
6204 free(dslist);
6205 } else if (argc == 0) {
6206 struct mnttab entry;
6207
6208 if ((op == OP_SHARE) || (options != NULL)) {
6209 (void) fprintf(stderr, gettext("missing filesystem "
6210 "argument (specify -a for all)\n"));
6211 usage(B_FALSE);
6212 }
6213
6214 /*
6215 * When mount is given no arguments, go through
6216 * /proc/self/mounts and display any active ZFS mounts.
6217 * We hide any snapshots, since they are controlled
6218 * automatically.
6219 */
6220
6221 /* Reopen MNTTAB to prevent reading stale data from open file */
6222 if (freopen(MNTTAB, "r", mnttab_file) == NULL) {
6223 if (options != NULL)
6224 free(options);
6225 return (ENOENT);
6226 }
6227
6228 while (getmntent(mnttab_file, &entry) == 0) {
6229 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6230 strchr(entry.mnt_special, '@') != NULL)
6231 continue;
6232
6233 (void) printf("%-30s %s\n", entry.mnt_special,
6234 entry.mnt_mountp);
6235 }
6236
6237 } else {
6238 zfs_handle_t *zhp;
6239
6240 if (argc > 1) {
6241 (void) fprintf(stderr,
6242 gettext("too many arguments\n"));
6243 usage(B_FALSE);
6244 }
6245
6246 if ((zhp = zfs_open(g_zfs, argv[0],
6247 ZFS_TYPE_FILESYSTEM)) == NULL) {
6248 ret = 1;
6249 } else {
6250 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6251 options);
6252 zfs_close(zhp);
6253 }
6254 }
6255
6256 if (options != NULL)
6257 free(options);
6258
6259 return (ret);
6260 }
6261
6262 /*
6263 * zfs mount -a [nfs]
6264 * zfs mount filesystem
6265 *
6266 * Mount all filesystems, or mount the given filesystem.
6267 */
6268 static int
6269 zfs_do_mount(int argc, char **argv)
6270 {
6271 return (share_mount(OP_MOUNT, argc, argv));
6272 }
6273
6274 /*
6275 * zfs share -a [nfs | smb]
6276 * zfs share filesystem
6277 *
6278 * Share all filesystems, or share the given filesystem.
6279 */
6280 static int
6281 zfs_do_share(int argc, char **argv)
6282 {
6283 return (share_mount(OP_SHARE, argc, argv));
6284 }
6285
6286 typedef struct unshare_unmount_node {
6287 zfs_handle_t *un_zhp;
6288 char *un_mountp;
6289 uu_avl_node_t un_avlnode;
6290 } unshare_unmount_node_t;
6291
6292 /* ARGSUSED */
6293 static int
6294 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6295 {
6296 const unshare_unmount_node_t *l = larg;
6297 const unshare_unmount_node_t *r = rarg;
6298
6299 return (strcmp(l->un_mountp, r->un_mountp));
6300 }
6301
6302 /*
6303 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6304 * absolute path, find the entry /proc/self/mounts, verify that its a
6305 * ZFS filesystems, and unmount it appropriately.
6306 */
6307 static int
6308 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6309 {
6310 zfs_handle_t *zhp;
6311 int ret = 0;
6312 struct stat64 statbuf;
6313 struct extmnttab entry;
6314 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6315 ino_t path_inode;
6316
6317 /*
6318 * Search for the path in /proc/self/mounts. Rather than looking for the
6319 * specific path, which can be fooled by non-standard paths (i.e. ".."
6320 * or "//"), we stat() the path and search for the corresponding
6321 * (major,minor) device pair.
6322 */
6323 if (stat64(path, &statbuf) != 0) {
6324 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6325 cmdname, path, strerror(errno));
6326 return (1);
6327 }
6328 path_inode = statbuf.st_ino;
6329
6330 /*
6331 * Search for the given (major,minor) pair in the mount table.
6332 */
6333
6334 /* Reopen MNTTAB to prevent reading stale data from open file */
6335 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6336 return (ENOENT);
6337
6338 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6339 if (entry.mnt_major == major(statbuf.st_dev) &&
6340 entry.mnt_minor == minor(statbuf.st_dev))
6341 break;
6342 }
6343 if (ret != 0) {
6344 if (op == OP_SHARE) {
6345 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6346 "currently mounted\n"), cmdname, path);
6347 return (1);
6348 }
6349 (void) fprintf(stderr, gettext("warning: %s not in"
6350 "/proc/self/mounts\n"), path);
6351 if ((ret = umount2(path, flags)) != 0)
6352 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6353 strerror(errno));
6354 return (ret != 0);
6355 }
6356
6357 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6358 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6359 "filesystem\n"), cmdname, path);
6360 return (1);
6361 }
6362
6363 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6364 ZFS_TYPE_FILESYSTEM)) == NULL)
6365 return (1);
6366
6367 ret = 1;
6368 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6369 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6370 cmdname, path, strerror(errno));
6371 goto out;
6372 } else if (statbuf.st_ino != path_inode) {
6373 (void) fprintf(stderr, gettext("cannot "
6374 "%s '%s': not a mountpoint\n"), cmdname, path);
6375 goto out;
6376 }
6377
6378 if (op == OP_SHARE) {
6379 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6380 char smbshare_prop[ZFS_MAXPROPLEN];
6381
6382 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6383 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6384 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6385 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6386
6387 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6388 strcmp(smbshare_prop, "off") == 0) {
6389 (void) fprintf(stderr, gettext("cannot unshare "
6390 "'%s': legacy share\n"), path);
6391 (void) fprintf(stderr, gettext("use exportfs(8) "
6392 "or smbcontrol(1) to unshare this filesystem\n"));
6393 } else if (!zfs_is_shared(zhp)) {
6394 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6395 "not currently shared\n"), path);
6396 } else {
6397 ret = zfs_unshareall_bypath(zhp, path);
6398 }
6399 } else {
6400 char mtpt_prop[ZFS_MAXPROPLEN];
6401
6402 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6403 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6404
6405 if (is_manual) {
6406 ret = zfs_unmount(zhp, NULL, flags);
6407 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6408 (void) fprintf(stderr, gettext("cannot unmount "
6409 "'%s': legacy mountpoint\n"),
6410 zfs_get_name(zhp));
6411 (void) fprintf(stderr, gettext("use umount(8) "
6412 "to unmount this filesystem\n"));
6413 } else {
6414 ret = zfs_unmountall(zhp, flags);
6415 }
6416 }
6417
6418 out:
6419 zfs_close(zhp);
6420
6421 return (ret != 0);
6422 }
6423
6424 /*
6425 * Generic callback for unsharing or unmounting a filesystem.
6426 */
6427 static int
6428 unshare_unmount(int op, int argc, char **argv)
6429 {
6430 int do_all = 0;
6431 int flags = 0;
6432 int ret = 0;
6433 int c;
6434 zfs_handle_t *zhp;
6435 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6436 char sharesmb[ZFS_MAXPROPLEN];
6437
6438 /* check options */
6439 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
6440 switch (c) {
6441 case 'a':
6442 do_all = 1;
6443 break;
6444 case 'f':
6445 flags = MS_FORCE;
6446 break;
6447 case '?':
6448 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6449 optopt);
6450 usage(B_FALSE);
6451 }
6452 }
6453
6454 argc -= optind;
6455 argv += optind;
6456
6457 if (do_all) {
6458 /*
6459 * We could make use of zfs_for_each() to walk all datasets in
6460 * the system, but this would be very inefficient, especially
6461 * since we would have to linearly search /proc/self/mounts for
6462 * each one. Instead, do one pass through /proc/self/mounts
6463 * looking for zfs entries and call zfs_unmount() for each one.
6464 *
6465 * Things get a little tricky if the administrator has created
6466 * mountpoints beneath other ZFS filesystems. In this case, we
6467 * have to unmount the deepest filesystems first. To accomplish
6468 * this, we place all the mountpoints in an AVL tree sorted by
6469 * the special type (dataset name), and walk the result in
6470 * reverse to make sure to get any snapshots first.
6471 */
6472 struct mnttab entry;
6473 uu_avl_pool_t *pool;
6474 uu_avl_t *tree = NULL;
6475 unshare_unmount_node_t *node;
6476 uu_avl_index_t idx;
6477 uu_avl_walk_t *walk;
6478
6479 if (argc != 0) {
6480 (void) fprintf(stderr, gettext("too many arguments\n"));
6481 usage(B_FALSE);
6482 }
6483
6484 if (((pool = uu_avl_pool_create("unmount_pool",
6485 sizeof (unshare_unmount_node_t),
6486 offsetof(unshare_unmount_node_t, un_avlnode),
6487 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6488 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6489 nomem();
6490
6491 /* Reopen MNTTAB to prevent reading stale data from open file */
6492 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6493 return (ENOENT);
6494
6495 while (getmntent(mnttab_file, &entry) == 0) {
6496
6497 /* ignore non-ZFS entries */
6498 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6499 continue;
6500
6501 /* ignore snapshots */
6502 if (strchr(entry.mnt_special, '@') != NULL)
6503 continue;
6504
6505 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6506 ZFS_TYPE_FILESYSTEM)) == NULL) {
6507 ret = 1;
6508 continue;
6509 }
6510
6511 switch (op) {
6512 case OP_SHARE:
6513 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6514 nfs_mnt_prop,
6515 sizeof (nfs_mnt_prop),
6516 NULL, NULL, 0, B_FALSE) == 0);
6517 if (strcmp(nfs_mnt_prop, "off") != 0)
6518 break;
6519 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6520 nfs_mnt_prop,
6521 sizeof (nfs_mnt_prop),
6522 NULL, NULL, 0, B_FALSE) == 0);
6523 if (strcmp(nfs_mnt_prop, "off") == 0)
6524 continue;
6525 break;
6526 case OP_MOUNT:
6527 /* Ignore legacy mounts */
6528 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6529 nfs_mnt_prop,
6530 sizeof (nfs_mnt_prop),
6531 NULL, NULL, 0, B_FALSE) == 0);
6532 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6533 continue;
6534 /* Ignore canmount=noauto mounts */
6535 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6536 ZFS_CANMOUNT_NOAUTO)
6537 continue;
6538 default:
6539 break;
6540 }
6541
6542 node = safe_malloc(sizeof (unshare_unmount_node_t));
6543 node->un_zhp = zhp;
6544 node->un_mountp = safe_strdup(entry.mnt_mountp);
6545
6546 uu_avl_node_init(node, &node->un_avlnode, pool);
6547
6548 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6549 uu_avl_insert(tree, node, idx);
6550 } else {
6551 zfs_close(node->un_zhp);
6552 free(node->un_mountp);
6553 free(node);
6554 }
6555 }
6556
6557 /*
6558 * Walk the AVL tree in reverse, unmounting each filesystem and
6559 * removing it from the AVL tree in the process.
6560 */
6561 if ((walk = uu_avl_walk_start(tree,
6562 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6563 nomem();
6564
6565 while ((node = uu_avl_walk_next(walk)) != NULL) {
6566 uu_avl_remove(tree, node);
6567
6568 switch (op) {
6569 case OP_SHARE:
6570 if (zfs_unshareall_bypath(node->un_zhp,
6571 node->un_mountp) != 0)
6572 ret = 1;
6573 break;
6574
6575 case OP_MOUNT:
6576 if (zfs_unmount(node->un_zhp,
6577 node->un_mountp, flags) != 0)
6578 ret = 1;
6579 break;
6580 }
6581
6582 zfs_close(node->un_zhp);
6583 free(node->un_mountp);
6584 free(node);
6585 }
6586
6587 uu_avl_walk_end(walk);
6588 uu_avl_destroy(tree);
6589 uu_avl_pool_destroy(pool);
6590
6591 } else {
6592 if (argc != 1) {
6593 if (argc == 0)
6594 (void) fprintf(stderr,
6595 gettext("missing filesystem argument\n"));
6596 else
6597 (void) fprintf(stderr,
6598 gettext("too many arguments\n"));
6599 usage(B_FALSE);
6600 }
6601
6602 /*
6603 * We have an argument, but it may be a full path or a ZFS
6604 * filesystem. Pass full paths off to unmount_path() (shared by
6605 * manual_unmount), otherwise open the filesystem and pass to
6606 * zfs_unmount().
6607 */
6608 if (argv[0][0] == '/')
6609 return (unshare_unmount_path(op, argv[0],
6610 flags, B_FALSE));
6611
6612 if ((zhp = zfs_open(g_zfs, argv[0],
6613 ZFS_TYPE_FILESYSTEM)) == NULL)
6614 return (1);
6615
6616 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6617 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6618 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6619 NULL, 0, B_FALSE) == 0);
6620
6621 switch (op) {
6622 case OP_SHARE:
6623 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6624 nfs_mnt_prop,
6625 sizeof (nfs_mnt_prop),
6626 NULL, NULL, 0, B_FALSE) == 0);
6627 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6628 sharesmb, sizeof (sharesmb), NULL, NULL,
6629 0, B_FALSE) == 0);
6630
6631 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6632 strcmp(sharesmb, "off") == 0) {
6633 (void) fprintf(stderr, gettext("cannot "
6634 "unshare '%s': legacy share\n"),
6635 zfs_get_name(zhp));
6636 (void) fprintf(stderr, gettext("use "
6637 "unshare(1M) to unshare this "
6638 "filesystem\n"));
6639 ret = 1;
6640 } else if (!zfs_is_shared(zhp)) {
6641 (void) fprintf(stderr, gettext("cannot "
6642 "unshare '%s': not currently "
6643 "shared\n"), zfs_get_name(zhp));
6644 ret = 1;
6645 } else if (zfs_unshareall(zhp) != 0) {
6646 ret = 1;
6647 }
6648 break;
6649
6650 case OP_MOUNT:
6651 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6652 (void) fprintf(stderr, gettext("cannot "
6653 "unmount '%s': legacy "
6654 "mountpoint\n"), zfs_get_name(zhp));
6655 (void) fprintf(stderr, gettext("use "
6656 "umount(1M) to unmount this "
6657 "filesystem\n"));
6658 ret = 1;
6659 } else if (!zfs_is_mounted(zhp, NULL)) {
6660 (void) fprintf(stderr, gettext("cannot "
6661 "unmount '%s': not currently "
6662 "mounted\n"),
6663 zfs_get_name(zhp));
6664 ret = 1;
6665 } else if (zfs_unmountall(zhp, flags) != 0) {
6666 ret = 1;
6667 }
6668 break;
6669 }
6670
6671 zfs_close(zhp);
6672 }
6673
6674 return (ret);
6675 }
6676
6677 /*
6678 * zfs unmount -a
6679 * zfs unmount filesystem
6680 *
6681 * Unmount all filesystems, or a specific ZFS filesystem.
6682 */
6683 static int
6684 zfs_do_unmount(int argc, char **argv)
6685 {
6686 return (unshare_unmount(OP_MOUNT, argc, argv));
6687 }
6688
6689 /*
6690 * zfs unshare -a
6691 * zfs unshare filesystem
6692 *
6693 * Unshare all filesystems, or a specific ZFS filesystem.
6694 */
6695 static int
6696 zfs_do_unshare(int argc, char **argv)
6697 {
6698 return (unshare_unmount(OP_SHARE, argc, argv));
6699 }
6700
6701 static int
6702 find_command_idx(char *command, int *idx)
6703 {
6704 int i;
6705
6706 for (i = 0; i < NCOMMAND; i++) {
6707 if (command_table[i].name == NULL)
6708 continue;
6709
6710 if (strcmp(command, command_table[i].name) == 0) {
6711 *idx = i;
6712 return (0);
6713 }
6714 }
6715 return (1);
6716 }
6717
6718 static int
6719 zfs_do_diff(int argc, char **argv)
6720 {
6721 zfs_handle_t *zhp;
6722 int flags = 0;
6723 char *tosnap = NULL;
6724 char *fromsnap = NULL;
6725 char *atp, *copy;
6726 int err = 0;
6727 int c;
6728
6729 while ((c = getopt(argc, argv, "FHt")) != -1) {
6730 switch (c) {
6731 case 'F':
6732 flags |= ZFS_DIFF_CLASSIFY;
6733 break;
6734 case 'H':
6735 flags |= ZFS_DIFF_PARSEABLE;
6736 break;
6737 case 't':
6738 flags |= ZFS_DIFF_TIMESTAMP;
6739 break;
6740 default:
6741 (void) fprintf(stderr,
6742 gettext("invalid option '%c'\n"), optopt);
6743 usage(B_FALSE);
6744 }
6745 }
6746
6747 argc -= optind;
6748 argv += optind;
6749
6750 if (argc < 1) {
6751 (void) fprintf(stderr,
6752 gettext("must provide at least one snapshot name\n"));
6753 usage(B_FALSE);
6754 }
6755
6756 if (argc > 2) {
6757 (void) fprintf(stderr, gettext("too many arguments\n"));
6758 usage(B_FALSE);
6759 }
6760
6761 fromsnap = argv[0];
6762 tosnap = (argc == 2) ? argv[1] : NULL;
6763
6764 copy = NULL;
6765 if (*fromsnap != '@')
6766 copy = strdup(fromsnap);
6767 else if (tosnap)
6768 copy = strdup(tosnap);
6769 if (copy == NULL)
6770 usage(B_FALSE);
6771
6772 if ((atp = strchr(copy, '@')))
6773 *atp = '\0';
6774
6775 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) {
6776 free(copy);
6777 return (1);
6778 }
6779 free(copy);
6780
6781 /*
6782 * Ignore SIGPIPE so that the library can give us
6783 * information on any failure
6784 */
6785 (void) sigignore(SIGPIPE);
6786
6787 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6788
6789 zfs_close(zhp);
6790
6791 return (err != 0);
6792 }
6793
6794 /*
6795 * zfs bookmark <fs@snap> <fs#bmark>
6796 *
6797 * Creates a bookmark with the given name from the given snapshot.
6798 */
6799 static int
6800 zfs_do_bookmark(int argc, char **argv)
6801 {
6802 char snapname[ZFS_MAX_DATASET_NAME_LEN];
6803 zfs_handle_t *zhp;
6804 nvlist_t *nvl;
6805 int ret = 0;
6806 int c;
6807
6808 /* check options */
6809 while ((c = getopt(argc, argv, "")) != -1) {
6810 switch (c) {
6811 case '?':
6812 (void) fprintf(stderr,
6813 gettext("invalid option '%c'\n"), optopt);
6814 goto usage;
6815 }
6816 }
6817
6818 argc -= optind;
6819 argv += optind;
6820
6821 /* check number of arguments */
6822 if (argc < 1) {
6823 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
6824 goto usage;
6825 }
6826 if (argc < 2) {
6827 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
6828 goto usage;
6829 }
6830
6831 if (strchr(argv[1], '#') == NULL) {
6832 (void) fprintf(stderr,
6833 gettext("invalid bookmark name '%s' -- "
6834 "must contain a '#'\n"), argv[1]);
6835 goto usage;
6836 }
6837
6838 if (argv[0][0] == '@') {
6839 /*
6840 * Snapshot name begins with @.
6841 * Default to same fs as bookmark.
6842 */
6843 (void) strlcpy(snapname, argv[1], sizeof (snapname));
6844 *strchr(snapname, '#') = '\0';
6845 (void) strlcat(snapname, argv[0], sizeof (snapname));
6846 } else {
6847 (void) strlcpy(snapname, argv[0], sizeof (snapname));
6848 }
6849 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
6850 if (zhp == NULL)
6851 goto usage;
6852 zfs_close(zhp);
6853
6854
6855 nvl = fnvlist_alloc();
6856 fnvlist_add_string(nvl, argv[1], snapname);
6857 ret = lzc_bookmark(nvl, NULL);
6858 fnvlist_free(nvl);
6859
6860 if (ret != 0) {
6861 const char *err_msg;
6862 char errbuf[1024];
6863
6864 (void) snprintf(errbuf, sizeof (errbuf),
6865 dgettext(TEXT_DOMAIN,
6866 "cannot create bookmark '%s'"), argv[1]);
6867
6868 switch (ret) {
6869 case EXDEV:
6870 err_msg = "bookmark is in a different pool";
6871 break;
6872 case EEXIST:
6873 err_msg = "bookmark exists";
6874 break;
6875 case EINVAL:
6876 err_msg = "invalid argument";
6877 break;
6878 case ENOTSUP:
6879 err_msg = "bookmark feature not enabled";
6880 break;
6881 case ENOSPC:
6882 err_msg = "out of space";
6883 break;
6884 default:
6885 err_msg = "unknown error";
6886 break;
6887 }
6888 (void) fprintf(stderr, "%s: %s\n", errbuf,
6889 dgettext(TEXT_DOMAIN, err_msg));
6890 }
6891
6892 return (ret != 0);
6893
6894 usage:
6895 usage(B_FALSE);
6896 return (-1);
6897 }
6898
6899 int
6900 main(int argc, char **argv)
6901 {
6902 int ret = 0;
6903 int i = 0;
6904 char *cmdname;
6905
6906 (void) setlocale(LC_ALL, "");
6907 (void) textdomain(TEXT_DOMAIN);
6908
6909 dprintf_setup(&argc, argv);
6910
6911 opterr = 0;
6912
6913 /*
6914 * Make sure the user has specified some command.
6915 */
6916 if (argc < 2) {
6917 (void) fprintf(stderr, gettext("missing command\n"));
6918 usage(B_FALSE);
6919 }
6920
6921 cmdname = argv[1];
6922
6923 /*
6924 * The 'umount' command is an alias for 'unmount'
6925 */
6926 if (strcmp(cmdname, "umount") == 0)
6927 cmdname = "unmount";
6928
6929 /*
6930 * The 'recv' command is an alias for 'receive'
6931 */
6932 if (strcmp(cmdname, "recv") == 0)
6933 cmdname = "receive";
6934
6935 /*
6936 * The 'snap' command is an alias for 'snapshot'
6937 */
6938 if (strcmp(cmdname, "snap") == 0)
6939 cmdname = "snapshot";
6940
6941 /*
6942 * Special case '-?'
6943 */
6944 if ((strcmp(cmdname, "-?") == 0) ||
6945 (strcmp(cmdname, "--help") == 0))
6946 usage(B_TRUE);
6947
6948 if ((g_zfs = libzfs_init()) == NULL) {
6949 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
6950 return (1);
6951 }
6952
6953 mnttab_file = g_zfs->libzfs_mnttab;
6954
6955 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
6956
6957 libzfs_print_on_error(g_zfs, B_TRUE);
6958
6959 /*
6960 * Run the appropriate command.
6961 */
6962 libzfs_mnttab_cache(g_zfs, B_TRUE);
6963 if (find_command_idx(cmdname, &i) == 0) {
6964 current_command = &command_table[i];
6965 ret = command_table[i].func(argc - 1, argv + 1);
6966 } else if (strchr(cmdname, '=') != NULL) {
6967 verify(find_command_idx("set", &i) == 0);
6968 current_command = &command_table[i];
6969 ret = command_table[i].func(argc, argv);
6970 } else {
6971 (void) fprintf(stderr, gettext("unrecognized "
6972 "command '%s'\n"), cmdname);
6973 usage(B_FALSE);
6974 ret = 1;
6975 }
6976
6977 if (ret == 0 && log_history)
6978 (void) zpool_log_history(g_zfs, history_str);
6979
6980 libzfs_fini(g_zfs);
6981
6982 /*
6983 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
6984 * for the purposes of running ::findleaks.
6985 */
6986 if (getenv("ZFS_ABORT") != NULL) {
6987 (void) printf("dumping core by request\n");
6988 abort();
6989 }
6990
6991 return (ret);
6992 }
ZFS On Linux mirror for PVE