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1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2017 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 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
29 * Copyright 2016 Nexenta Systems, Inc.
30 */
31
32 #include <assert.h>
33 #include <ctype.h>
34 #include <errno.h>
35 #include <getopt.h>
36 #include <libgen.h>
37 #include <libintl.h>
38 #include <libuutil.h>
39 #include <libnvpair.h>
40 #include <locale.h>
41 #include <stddef.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <strings.h>
45 #include <unistd.h>
46 #include <fcntl.h>
47 #include <zone.h>
48 #include <grp.h>
49 #include <pwd.h>
50 #include <signal.h>
51 #include <sys/debug.h>
52 #include <sys/list.h>
53 #include <sys/mkdev.h>
54 #include <sys/mntent.h>
55 #include <sys/mnttab.h>
56 #include <sys/mount.h>
57 #include <sys/stat.h>
58 #include <sys/fs/zfs.h>
59 #include <sys/systeminfo.h>
60 #include <sys/types.h>
61 #include <time.h>
62
63 #include <libzfs.h>
64 #include <libzfs_core.h>
65 #include <zfs_prop.h>
66 #include <zfs_deleg.h>
67 #include <libuutil.h>
68 #ifdef HAVE_IDMAP
69 #include <aclutils.h>
70 #include <directory.h>
71 #endif /* HAVE_IDMAP */
72
73 #include "zfs_iter.h"
74 #include "zfs_util.h"
75 #include "zfs_comutil.h"
76 #include "libzfs_impl.h"
77
78 libzfs_handle_t *g_zfs;
79
80 static FILE *mnttab_file;
81 static char history_str[HIS_MAX_RECORD_LEN];
82 static boolean_t log_history = B_TRUE;
83
84 static int zfs_do_clone(int argc, char **argv);
85 static int zfs_do_create(int argc, char **argv);
86 static int zfs_do_destroy(int argc, char **argv);
87 static int zfs_do_get(int argc, char **argv);
88 static int zfs_do_inherit(int argc, char **argv);
89 static int zfs_do_list(int argc, char **argv);
90 static int zfs_do_mount(int argc, char **argv);
91 static int zfs_do_rename(int argc, char **argv);
92 static int zfs_do_rollback(int argc, char **argv);
93 static int zfs_do_set(int argc, char **argv);
94 static int zfs_do_upgrade(int argc, char **argv);
95 static int zfs_do_snapshot(int argc, char **argv);
96 static int zfs_do_unmount(int argc, char **argv);
97 static int zfs_do_share(int argc, char **argv);
98 static int zfs_do_unshare(int argc, char **argv);
99 static int zfs_do_send(int argc, char **argv);
100 static int zfs_do_receive(int argc, char **argv);
101 static int zfs_do_promote(int argc, char **argv);
102 static int zfs_do_userspace(int argc, char **argv);
103 static int zfs_do_allow(int argc, char **argv);
104 static int zfs_do_unallow(int argc, char **argv);
105 static int zfs_do_hold(int argc, char **argv);
106 static int zfs_do_holds(int argc, char **argv);
107 static int zfs_do_release(int argc, char **argv);
108 static int zfs_do_diff(int argc, char **argv);
109 static int zfs_do_bookmark(int argc, char **argv);
110 static int zfs_do_channel_program(int argc, char **argv);
111 static int zfs_do_load_key(int argc, char **argv);
112 static int zfs_do_unload_key(int argc, char **argv);
113 static int zfs_do_change_key(int argc, char **argv);
114
115 /*
116 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
117 */
118
119 #ifdef DEBUG
120 const char *
121 _umem_debug_init(void)
122 {
123 return ("default,verbose"); /* $UMEM_DEBUG setting */
124 }
125
126 const char *
127 _umem_logging_init(void)
128 {
129 return ("fail,contents"); /* $UMEM_LOGGING setting */
130 }
131 #endif
132
133 typedef enum {
134 HELP_CLONE,
135 HELP_CREATE,
136 HELP_DESTROY,
137 HELP_GET,
138 HELP_INHERIT,
139 HELP_UPGRADE,
140 HELP_LIST,
141 HELP_MOUNT,
142 HELP_PROMOTE,
143 HELP_RECEIVE,
144 HELP_RENAME,
145 HELP_ROLLBACK,
146 HELP_SEND,
147 HELP_SET,
148 HELP_SHARE,
149 HELP_SNAPSHOT,
150 HELP_UNMOUNT,
151 HELP_UNSHARE,
152 HELP_ALLOW,
153 HELP_UNALLOW,
154 HELP_USERSPACE,
155 HELP_GROUPSPACE,
156 HELP_HOLD,
157 HELP_HOLDS,
158 HELP_RELEASE,
159 HELP_DIFF,
160 HELP_BOOKMARK,
161 HELP_CHANNEL_PROGRAM,
162 HELP_LOAD_KEY,
163 HELP_UNLOAD_KEY,
164 HELP_CHANGE_KEY,
165 } zfs_help_t;
166
167 typedef struct zfs_command {
168 const char *name;
169 int (*func)(int argc, char **argv);
170 zfs_help_t usage;
171 } zfs_command_t;
172
173 /*
174 * Master command table. Each ZFS command has a name, associated function, and
175 * usage message. The usage messages need to be internationalized, so we have
176 * to have a function to return the usage message based on a command index.
177 *
178 * These commands are organized according to how they are displayed in the usage
179 * message. An empty command (one with a NULL name) indicates an empty line in
180 * the generic usage message.
181 */
182 static zfs_command_t command_table[] = {
183 { "create", zfs_do_create, HELP_CREATE },
184 { "destroy", zfs_do_destroy, HELP_DESTROY },
185 { NULL },
186 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
187 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
188 { "clone", zfs_do_clone, HELP_CLONE },
189 { "promote", zfs_do_promote, HELP_PROMOTE },
190 { "rename", zfs_do_rename, HELP_RENAME },
191 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK },
192 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM },
193 { NULL },
194 { "list", zfs_do_list, HELP_LIST },
195 { NULL },
196 { "set", zfs_do_set, HELP_SET },
197 { "get", zfs_do_get, HELP_GET },
198 { "inherit", zfs_do_inherit, HELP_INHERIT },
199 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
200 { "userspace", zfs_do_userspace, HELP_USERSPACE },
201 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
202 { NULL },
203 { "mount", zfs_do_mount, HELP_MOUNT },
204 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
205 { "share", zfs_do_share, HELP_SHARE },
206 { "unshare", zfs_do_unshare, HELP_UNSHARE },
207 { NULL },
208 { "send", zfs_do_send, HELP_SEND },
209 { "receive", zfs_do_receive, HELP_RECEIVE },
210 { NULL },
211 { "allow", zfs_do_allow, HELP_ALLOW },
212 { NULL },
213 { "unallow", zfs_do_unallow, HELP_UNALLOW },
214 { NULL },
215 { "hold", zfs_do_hold, HELP_HOLD },
216 { "holds", zfs_do_holds, HELP_HOLDS },
217 { "release", zfs_do_release, HELP_RELEASE },
218 { "diff", zfs_do_diff, HELP_DIFF },
219 { "load-key", zfs_do_load_key, HELP_LOAD_KEY },
220 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY },
221 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY },
222 };
223
224 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
225
226 zfs_command_t *current_command;
227
228 static const char *
229 get_usage(zfs_help_t idx)
230 {
231 switch (idx) {
232 case HELP_CLONE:
233 return (gettext("\tclone [-p] [-o property=value] ... "
234 "<snapshot> <filesystem|volume>\n"));
235 case HELP_CREATE:
236 return (gettext("\tcreate [-p] [-o property=value] ... "
237 "<filesystem>\n"
238 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
239 "-V <size> <volume>\n"));
240 case HELP_DESTROY:
241 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
242 "\tdestroy [-dnpRrv] "
243 "<filesystem|volume>@<snap>[%<snap>][,...]\n"
244 "\tdestroy <filesystem|volume>#<bookmark>\n"));
245 case HELP_GET:
246 return (gettext("\tget [-rHp] [-d max] "
247 "[-o \"all\" | field[,...]]\n"
248 "\t [-t type[,...]] [-s source[,...]]\n"
249 "\t <\"all\" | property[,...]> "
250 "[filesystem|volume|snapshot|bookmark] ...\n"));
251 case HELP_INHERIT:
252 return (gettext("\tinherit [-rS] <property> "
253 "<filesystem|volume|snapshot> ...\n"));
254 case HELP_UPGRADE:
255 return (gettext("\tupgrade [-v]\n"
256 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
257 case HELP_LIST:
258 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] "
259 "[-s property]...\n\t [-S property]... [-t type[,...]] "
260 "[filesystem|volume|snapshot] ...\n"));
261 case HELP_MOUNT:
262 return (gettext("\tmount\n"
263 "\tmount [-lvO] [-o opts] <-a | filesystem>\n"));
264 case HELP_PROMOTE:
265 return (gettext("\tpromote <clone-filesystem>\n"));
266 case HELP_RECEIVE:
267 return (gettext("\treceive [-vnsFu] "
268 "[-o <property>=<value>] ... [-x <property>] ...\n"
269 "\t <filesystem|volume|snapshot>\n"
270 "\treceive [-vnsFu] [-o <property>=<value>] ... "
271 "[-x <property>] ... \n"
272 "\t [-d | -e] <filesystem>\n"
273 "\treceive -A <filesystem|volume>\n"));
274 case HELP_RENAME:
275 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
276 "<filesystem|volume|snapshot>\n"
277 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
278 "\trename -r <snapshot> <snapshot>\n"));
279 case HELP_ROLLBACK:
280 return (gettext("\trollback [-rRf] <snapshot>\n"));
281 case HELP_SEND:
282 return (gettext("\tsend [-DnPpRvLecr] [-[i|I] snapshot] "
283 "<snapshot>\n"
284 "\tsend [-Lecr] [-i snapshot|bookmark] "
285 "<filesystem|volume|snapshot>\n"
286 "\tsend [-nvPe] -t <receive_resume_token>\n"));
287 case HELP_SET:
288 return (gettext("\tset <property=value> ... "
289 "<filesystem|volume|snapshot> ...\n"));
290 case HELP_SHARE:
291 return (gettext("\tshare [-l] <-a [nfs|smb] | filesystem>\n"));
292 case HELP_SNAPSHOT:
293 return (gettext("\tsnapshot [-r] [-o property=value] ... "
294 "<filesystem|volume>@<snap> ...\n"));
295 case HELP_UNMOUNT:
296 return (gettext("\tunmount [-f] "
297 "<-a | filesystem|mountpoint>\n"));
298 case HELP_UNSHARE:
299 return (gettext("\tunshare "
300 "<-a [nfs|smb] | filesystem|mountpoint>\n"));
301 case HELP_ALLOW:
302 return (gettext("\tallow <filesystem|volume>\n"
303 "\tallow [-ldug] "
304 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
305 "\t <filesystem|volume>\n"
306 "\tallow [-ld] -e <perm|@setname>[,...] "
307 "<filesystem|volume>\n"
308 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
309 "\tallow -s @setname <perm|@setname>[,...] "
310 "<filesystem|volume>\n"));
311 case HELP_UNALLOW:
312 return (gettext("\tunallow [-rldug] "
313 "<\"everyone\"|user|group>[,...]\n"
314 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
315 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
316 "<filesystem|volume>\n"
317 "\tunallow [-r] -c [<perm|@setname>[,...]] "
318 "<filesystem|volume>\n"
319 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
320 "<filesystem|volume>\n"));
321 case HELP_USERSPACE:
322 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
323 "[-s field] ...\n"
324 "\t [-S field] ... [-t type[,...]] "
325 "<filesystem|snapshot>\n"));
326 case HELP_GROUPSPACE:
327 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
328 "[-s field] ...\n"
329 "\t [-S field] ... [-t type[,...]] "
330 "<filesystem|snapshot>\n"));
331 case HELP_HOLD:
332 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
333 case HELP_HOLDS:
334 return (gettext("\tholds [-r] <snapshot> ...\n"));
335 case HELP_RELEASE:
336 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
337 case HELP_DIFF:
338 return (gettext("\tdiff [-FHt] <snapshot> "
339 "[snapshot|filesystem]\n"));
340 case HELP_BOOKMARK:
341 return (gettext("\tbookmark <snapshot> <bookmark>\n"));
342 case HELP_CHANNEL_PROGRAM:
343 return (gettext("\tprogram [-n] [-t <instruction limit>] "
344 "[-m <memory limit (b)>] <pool> <program file> "
345 "[lua args...]\n"));
346 case HELP_LOAD_KEY:
347 return (gettext("\tload-key [-rn] [-L <keylocation>] "
348 "<-a | filesystem|volume>\n"));
349 case HELP_UNLOAD_KEY:
350 return (gettext("\tunload-key [-r] "
351 "<-a | filesystem|volume>\n"));
352 case HELP_CHANGE_KEY:
353 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n"
354 "\t [-o keylocation=<value>] [-o pbkfd2iters=<value>]\n"
355 "\t <filesystem|volume>\n"
356 "\tchange-key -i [-l] <filesystem|volume>\n"));
357 }
358
359 abort();
360 /* NOTREACHED */
361 }
362
363 void
364 nomem(void)
365 {
366 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
367 exit(1);
368 }
369
370 /*
371 * Utility function to guarantee malloc() success.
372 */
373
374 void *
375 safe_malloc(size_t size)
376 {
377 void *data;
378
379 if ((data = calloc(1, size)) == NULL)
380 nomem();
381
382 return (data);
383 }
384
385 void *
386 safe_realloc(void *data, size_t size)
387 {
388 void *newp;
389 if ((newp = realloc(data, size)) == NULL) {
390 free(data);
391 nomem();
392 }
393
394 return (newp);
395 }
396
397 static char *
398 safe_strdup(char *str)
399 {
400 char *dupstr = strdup(str);
401
402 if (dupstr == NULL)
403 nomem();
404
405 return (dupstr);
406 }
407
408 /*
409 * Callback routine that will print out information for each of
410 * the properties.
411 */
412 static int
413 usage_prop_cb(int prop, void *cb)
414 {
415 FILE *fp = cb;
416
417 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
418
419 if (zfs_prop_readonly(prop))
420 (void) fprintf(fp, " NO ");
421 else
422 (void) fprintf(fp, "YES ");
423
424 if (zfs_prop_inheritable(prop))
425 (void) fprintf(fp, " YES ");
426 else
427 (void) fprintf(fp, " NO ");
428
429 if (zfs_prop_values(prop) == NULL)
430 (void) fprintf(fp, "-\n");
431 else
432 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
433
434 return (ZPROP_CONT);
435 }
436
437 /*
438 * Display usage message. If we're inside a command, display only the usage for
439 * that command. Otherwise, iterate over the entire command table and display
440 * a complete usage message.
441 */
442 static void
443 usage(boolean_t requested)
444 {
445 int i;
446 boolean_t show_properties = B_FALSE;
447 FILE *fp = requested ? stdout : stderr;
448
449 if (current_command == NULL) {
450
451 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
452 (void) fprintf(fp,
453 gettext("where 'command' is one of the following:\n\n"));
454
455 for (i = 0; i < NCOMMAND; i++) {
456 if (command_table[i].name == NULL)
457 (void) fprintf(fp, "\n");
458 else
459 (void) fprintf(fp, "%s",
460 get_usage(command_table[i].usage));
461 }
462
463 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
464 "pool/[dataset/]*dataset[@name]\n"));
465 } else {
466 (void) fprintf(fp, gettext("usage:\n"));
467 (void) fprintf(fp, "%s", get_usage(current_command->usage));
468 }
469
470 if (current_command != NULL &&
471 (strcmp(current_command->name, "set") == 0 ||
472 strcmp(current_command->name, "get") == 0 ||
473 strcmp(current_command->name, "inherit") == 0 ||
474 strcmp(current_command->name, "list") == 0))
475 show_properties = B_TRUE;
476
477 if (show_properties) {
478 (void) fprintf(fp,
479 gettext("\nThe following properties are supported:\n"));
480
481 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
482 "PROPERTY", "EDIT", "INHERIT", "VALUES");
483
484 /* Iterate over all properties */
485 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
486 ZFS_TYPE_DATASET);
487
488 (void) fprintf(fp, "\t%-15s ", "userused@...");
489 (void) fprintf(fp, " NO NO <size>\n");
490 (void) fprintf(fp, "\t%-15s ", "groupused@...");
491 (void) fprintf(fp, " NO NO <size>\n");
492 (void) fprintf(fp, "\t%-15s ", "userquota@...");
493 (void) fprintf(fp, "YES NO <size> | none\n");
494 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
495 (void) fprintf(fp, "YES NO <size> | none\n");
496 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
497 (void) fprintf(fp, " NO NO <size>\n");
498
499 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
500 "with standard units such as K, M, G, etc.\n"));
501 (void) fprintf(fp, gettext("\nUser-defined properties can "
502 "be specified by using a name containing a colon (:).\n"));
503 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
504 "properties must be appended with\n"
505 "a user or group specifier of one of these forms:\n"
506 " POSIX name (eg: \"matt\")\n"
507 " POSIX id (eg: \"126829\")\n"
508 " SMB name@domain (eg: \"matt@sun\")\n"
509 " SMB SID (eg: \"S-1-234-567-89\")\n"));
510 } else {
511 (void) fprintf(fp,
512 gettext("\nFor the property list, run: %s\n"),
513 "zfs set|get");
514 (void) fprintf(fp,
515 gettext("\nFor the delegated permission list, run: %s\n"),
516 "zfs allow|unallow");
517 }
518
519 /*
520 * See comments at end of main().
521 */
522 if (getenv("ZFS_ABORT") != NULL) {
523 (void) printf("dumping core by request\n");
524 abort();
525 }
526
527 exit(requested ? 0 : 2);
528 }
529
530 /*
531 * Take a property=value argument string and add it to the given nvlist.
532 * Modifies the argument inplace.
533 */
534 static boolean_t
535 parseprop(nvlist_t *props, char *propname)
536 {
537 char *propval;
538
539 if ((propval = strchr(propname, '=')) == NULL) {
540 (void) fprintf(stderr, gettext("missing "
541 "'=' for property=value argument\n"));
542 return (B_FALSE);
543 }
544 *propval = '\0';
545 propval++;
546 if (nvlist_exists(props, propname)) {
547 (void) fprintf(stderr, gettext("property '%s' "
548 "specified multiple times\n"), propname);
549 return (B_FALSE);
550 }
551 if (nvlist_add_string(props, propname, propval) != 0)
552 nomem();
553 return (B_TRUE);
554 }
555
556 /*
557 * Take a property name argument and add it to the given nvlist.
558 * Modifies the argument inplace.
559 */
560 static boolean_t
561 parsepropname(nvlist_t *props, char *propname)
562 {
563 if (strchr(propname, '=') != NULL) {
564 (void) fprintf(stderr, gettext("invalid character "
565 "'=' in property argument\n"));
566 return (B_FALSE);
567 }
568 if (nvlist_exists(props, propname)) {
569 (void) fprintf(stderr, gettext("property '%s' "
570 "specified multiple times\n"), propname);
571 return (B_FALSE);
572 }
573 if (nvlist_add_boolean(props, propname) != 0)
574 nomem();
575 return (B_TRUE);
576 }
577
578 static int
579 parse_depth(char *opt, int *flags)
580 {
581 char *tmp;
582 int depth;
583
584 depth = (int)strtol(opt, &tmp, 0);
585 if (*tmp) {
586 (void) fprintf(stderr,
587 gettext("%s is not an integer\n"), optarg);
588 usage(B_FALSE);
589 }
590 if (depth < 0) {
591 (void) fprintf(stderr,
592 gettext("Depth can not be negative.\n"));
593 usage(B_FALSE);
594 }
595 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
596 return (depth);
597 }
598
599 #define PROGRESS_DELAY 2 /* seconds */
600
601 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";
602 static time_t pt_begin;
603 static char *pt_header = NULL;
604 static boolean_t pt_shown;
605
606 static void
607 start_progress_timer(void)
608 {
609 pt_begin = time(NULL) + PROGRESS_DELAY;
610 pt_shown = B_FALSE;
611 }
612
613 static void
614 set_progress_header(char *header)
615 {
616 assert(pt_header == NULL);
617 pt_header = safe_strdup(header);
618 if (pt_shown) {
619 (void) printf("%s: ", header);
620 (void) fflush(stdout);
621 }
622 }
623
624 static void
625 update_progress(char *update)
626 {
627 if (!pt_shown && time(NULL) > pt_begin) {
628 int len = strlen(update);
629
630 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
631 pt_reverse);
632 (void) fflush(stdout);
633 pt_shown = B_TRUE;
634 } else if (pt_shown) {
635 int len = strlen(update);
636
637 (void) printf("%s%*.*s", update, len, len, pt_reverse);
638 (void) fflush(stdout);
639 }
640 }
641
642 static void
643 finish_progress(char *done)
644 {
645 if (pt_shown) {
646 (void) printf("%s\n", done);
647 (void) fflush(stdout);
648 }
649 free(pt_header);
650 pt_header = NULL;
651 }
652
653 static int
654 zfs_mount_and_share(libzfs_handle_t *hdl, const char *dataset, zfs_type_t type)
655 {
656 zfs_handle_t *zhp = NULL;
657 int ret = 0;
658
659 zhp = zfs_open(hdl, dataset, type);
660 if (zhp == NULL)
661 return (1);
662
663 /*
664 * Volumes may neither be mounted or shared. Potentially in the
665 * future filesystems detected on these volumes could be mounted.
666 */
667 if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) {
668 zfs_close(zhp);
669 return (0);
670 }
671
672 /*
673 * Mount and/or share the new filesystem as appropriate. We provide a
674 * verbose error message to let the user know that their filesystem was
675 * in fact created, even if we failed to mount or share it.
676 *
677 * If the user doesn't want the dataset automatically mounted, then
678 * skip the mount/share step
679 */
680 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) &&
681 zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) {
682 if (geteuid() != 0) {
683 (void) fprintf(stderr, gettext("filesystem "
684 "successfully created, but it may only be "
685 "mounted by root\n"));
686 ret = 1;
687 } else if (zfs_mount(zhp, NULL, 0) != 0) {
688 (void) fprintf(stderr, gettext("filesystem "
689 "successfully created, but not mounted\n"));
690 ret = 1;
691 } else if (zfs_share(zhp) != 0) {
692 (void) fprintf(stderr, gettext("filesystem "
693 "successfully created, but not shared\n"));
694 ret = 1;
695 }
696 }
697
698 zfs_close(zhp);
699
700 return (ret);
701 }
702
703 /*
704 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
705 *
706 * Given an existing dataset, create a writable copy whose initial contents
707 * are the same as the source. The newly created dataset maintains a
708 * dependency on the original; the original cannot be destroyed so long as
709 * the clone exists.
710 *
711 * The '-p' flag creates all the non-existing ancestors of the target first.
712 */
713 static int
714 zfs_do_clone(int argc, char **argv)
715 {
716 zfs_handle_t *zhp = NULL;
717 boolean_t parents = B_FALSE;
718 nvlist_t *props;
719 int ret = 0;
720 int c;
721
722 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
723 nomem();
724
725 /* check options */
726 while ((c = getopt(argc, argv, "o:p")) != -1) {
727 switch (c) {
728 case 'o':
729 if (!parseprop(props, optarg)) {
730 nvlist_free(props);
731 return (1);
732 }
733 break;
734 case 'p':
735 parents = B_TRUE;
736 break;
737 case '?':
738 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
739 optopt);
740 goto usage;
741 }
742 }
743
744 argc -= optind;
745 argv += optind;
746
747 /* check number of arguments */
748 if (argc < 1) {
749 (void) fprintf(stderr, gettext("missing source dataset "
750 "argument\n"));
751 goto usage;
752 }
753 if (argc < 2) {
754 (void) fprintf(stderr, gettext("missing target dataset "
755 "argument\n"));
756 goto usage;
757 }
758 if (argc > 2) {
759 (void) fprintf(stderr, gettext("too many arguments\n"));
760 goto usage;
761 }
762
763 /* open the source dataset */
764 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) {
765 nvlist_free(props);
766 return (1);
767 }
768
769 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
770 ZFS_TYPE_VOLUME)) {
771 /*
772 * Now create the ancestors of the target dataset. If the
773 * target already exists and '-p' option was used we should not
774 * complain.
775 */
776 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
777 ZFS_TYPE_VOLUME)) {
778 zfs_close(zhp);
779 nvlist_free(props);
780 return (0);
781 }
782 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) {
783 zfs_close(zhp);
784 nvlist_free(props);
785 return (1);
786 }
787 }
788
789 /* pass to libzfs */
790 ret = zfs_clone(zhp, argv[1], props);
791
792 /* create the mountpoint if necessary */
793 if (ret == 0) {
794 if (log_history) {
795 (void) zpool_log_history(g_zfs, history_str);
796 log_history = B_FALSE;
797 }
798
799 ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET);
800 }
801
802 zfs_close(zhp);
803 nvlist_free(props);
804
805 return (!!ret);
806
807 usage:
808 ASSERT3P(zhp, ==, NULL);
809 nvlist_free(props);
810 usage(B_FALSE);
811 return (-1);
812 }
813
814 /*
815 * zfs create [-p] [-o prop=value] ... fs
816 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
817 *
818 * Create a new dataset. This command can be used to create filesystems
819 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
820 * For volumes, the user must specify a size to be used.
821 *
822 * The '-s' flag applies only to volumes, and indicates that we should not try
823 * to set the reservation for this volume. By default we set a reservation
824 * equal to the size for any volume. For pools with SPA_VERSION >=
825 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
826 *
827 * The '-p' flag creates all the non-existing ancestors of the target first.
828 */
829 static int
830 zfs_do_create(int argc, char **argv)
831 {
832 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
833 uint64_t volsize = 0;
834 int c;
835 boolean_t noreserve = B_FALSE;
836 boolean_t bflag = B_FALSE;
837 boolean_t parents = B_FALSE;
838 int ret = 1;
839 nvlist_t *props;
840 uint64_t intval;
841
842 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
843 nomem();
844
845 /* check options */
846 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
847 switch (c) {
848 case 'V':
849 type = ZFS_TYPE_VOLUME;
850 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
851 (void) fprintf(stderr, gettext("bad volume "
852 "size '%s': %s\n"), optarg,
853 libzfs_error_description(g_zfs));
854 goto error;
855 }
856
857 if (nvlist_add_uint64(props,
858 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
859 nomem();
860 volsize = intval;
861 break;
862 case 'p':
863 parents = B_TRUE;
864 break;
865 case 'b':
866 bflag = B_TRUE;
867 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
868 (void) fprintf(stderr, gettext("bad volume "
869 "block size '%s': %s\n"), optarg,
870 libzfs_error_description(g_zfs));
871 goto error;
872 }
873
874 if (nvlist_add_uint64(props,
875 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
876 intval) != 0)
877 nomem();
878 break;
879 case 'o':
880 if (!parseprop(props, optarg))
881 goto error;
882 break;
883 case 's':
884 noreserve = B_TRUE;
885 break;
886 case ':':
887 (void) fprintf(stderr, gettext("missing size "
888 "argument\n"));
889 goto badusage;
890 case '?':
891 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
892 optopt);
893 goto badusage;
894 }
895 }
896
897 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
898 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
899 "used when creating a volume\n"));
900 goto badusage;
901 }
902
903 argc -= optind;
904 argv += optind;
905
906 /* check number of arguments */
907 if (argc == 0) {
908 (void) fprintf(stderr, gettext("missing %s argument\n"),
909 zfs_type_to_name(type));
910 goto badusage;
911 }
912 if (argc > 1) {
913 (void) fprintf(stderr, gettext("too many arguments\n"));
914 goto badusage;
915 }
916
917 if (type == ZFS_TYPE_VOLUME && !noreserve) {
918 zpool_handle_t *zpool_handle;
919 nvlist_t *real_props = NULL;
920 uint64_t spa_version;
921 char *p;
922 zfs_prop_t resv_prop;
923 char *strval;
924 char msg[1024];
925
926 if ((p = strchr(argv[0], '/')) != NULL)
927 *p = '\0';
928 zpool_handle = zpool_open(g_zfs, argv[0]);
929 if (p != NULL)
930 *p = '/';
931 if (zpool_handle == NULL)
932 goto error;
933 spa_version = zpool_get_prop_int(zpool_handle,
934 ZPOOL_PROP_VERSION, NULL);
935 if (spa_version >= SPA_VERSION_REFRESERVATION)
936 resv_prop = ZFS_PROP_REFRESERVATION;
937 else
938 resv_prop = ZFS_PROP_RESERVATION;
939
940 (void) snprintf(msg, sizeof (msg),
941 gettext("cannot create '%s'"), argv[0]);
942 if (props && (real_props = zfs_valid_proplist(g_zfs, type,
943 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) {
944 zpool_close(zpool_handle);
945 goto error;
946 }
947 zpool_close(zpool_handle);
948
949 volsize = zvol_volsize_to_reservation(volsize, real_props);
950 nvlist_free(real_props);
951
952 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
953 &strval) != 0) {
954 if (nvlist_add_uint64(props,
955 zfs_prop_to_name(resv_prop), volsize) != 0) {
956 nvlist_free(props);
957 nomem();
958 }
959 }
960 }
961
962 if (parents && zfs_name_valid(argv[0], type)) {
963 /*
964 * Now create the ancestors of target dataset. If the target
965 * already exists and '-p' option was used we should not
966 * complain.
967 */
968 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
969 ret = 0;
970 goto error;
971 }
972 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
973 goto error;
974 }
975
976 /* pass to libzfs */
977 if (zfs_create(g_zfs, argv[0], type, props) != 0)
978 goto error;
979
980 if (log_history) {
981 (void) zpool_log_history(g_zfs, history_str);
982 log_history = B_FALSE;
983 }
984
985 ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET);
986 error:
987 nvlist_free(props);
988 return (ret);
989 badusage:
990 nvlist_free(props);
991 usage(B_FALSE);
992 return (2);
993 }
994
995 /*
996 * zfs destroy [-rRf] <fs, vol>
997 * zfs destroy [-rRd] <snap>
998 *
999 * -r Recursively destroy all children
1000 * -R Recursively destroy all dependents, including clones
1001 * -f Force unmounting of any dependents
1002 * -d If we can't destroy now, mark for deferred destruction
1003 *
1004 * Destroys the given dataset. By default, it will unmount any filesystems,
1005 * and refuse to destroy a dataset that has any dependents. A dependent can
1006 * either be a child, or a clone of a child.
1007 */
1008 typedef struct destroy_cbdata {
1009 boolean_t cb_first;
1010 boolean_t cb_force;
1011 boolean_t cb_recurse;
1012 boolean_t cb_error;
1013 boolean_t cb_doclones;
1014 zfs_handle_t *cb_target;
1015 boolean_t cb_defer_destroy;
1016 boolean_t cb_verbose;
1017 boolean_t cb_parsable;
1018 boolean_t cb_dryrun;
1019 nvlist_t *cb_nvl;
1020 nvlist_t *cb_batchedsnaps;
1021
1022 /* first snap in contiguous run */
1023 char *cb_firstsnap;
1024 /* previous snap in contiguous run */
1025 char *cb_prevsnap;
1026 int64_t cb_snapused;
1027 char *cb_snapspec;
1028 char *cb_bookmark;
1029 } destroy_cbdata_t;
1030
1031 /*
1032 * Check for any dependents based on the '-r' or '-R' flags.
1033 */
1034 static int
1035 destroy_check_dependent(zfs_handle_t *zhp, void *data)
1036 {
1037 destroy_cbdata_t *cbp = data;
1038 const char *tname = zfs_get_name(cbp->cb_target);
1039 const char *name = zfs_get_name(zhp);
1040
1041 if (strncmp(tname, name, strlen(tname)) == 0 &&
1042 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
1043 /*
1044 * This is a direct descendant, not a clone somewhere else in
1045 * the hierarchy.
1046 */
1047 if (cbp->cb_recurse)
1048 goto out;
1049
1050 if (cbp->cb_first) {
1051 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1052 "%s has children\n"),
1053 zfs_get_name(cbp->cb_target),
1054 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1055 (void) fprintf(stderr, gettext("use '-r' to destroy "
1056 "the following datasets:\n"));
1057 cbp->cb_first = B_FALSE;
1058 cbp->cb_error = B_TRUE;
1059 }
1060
1061 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1062 } else {
1063 /*
1064 * This is a clone. We only want to report this if the '-r'
1065 * wasn't specified, or the target is a snapshot.
1066 */
1067 if (!cbp->cb_recurse &&
1068 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
1069 goto out;
1070
1071 if (cbp->cb_first) {
1072 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1073 "%s has dependent clones\n"),
1074 zfs_get_name(cbp->cb_target),
1075 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1076 (void) fprintf(stderr, gettext("use '-R' to destroy "
1077 "the following datasets:\n"));
1078 cbp->cb_first = B_FALSE;
1079 cbp->cb_error = B_TRUE;
1080 cbp->cb_dryrun = B_TRUE;
1081 }
1082
1083 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1084 }
1085
1086 out:
1087 zfs_close(zhp);
1088 return (0);
1089 }
1090
1091 static int
1092 destroy_callback(zfs_handle_t *zhp, void *data)
1093 {
1094 destroy_cbdata_t *cb = data;
1095 const char *name = zfs_get_name(zhp);
1096
1097 if (cb->cb_verbose) {
1098 if (cb->cb_parsable) {
1099 (void) printf("destroy\t%s\n", name);
1100 } else if (cb->cb_dryrun) {
1101 (void) printf(gettext("would destroy %s\n"),
1102 name);
1103 } else {
1104 (void) printf(gettext("will destroy %s\n"),
1105 name);
1106 }
1107 }
1108
1109 /*
1110 * Ignore pools (which we've already flagged as an error before getting
1111 * here).
1112 */
1113 if (strchr(zfs_get_name(zhp), '/') == NULL &&
1114 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1115 zfs_close(zhp);
1116 return (0);
1117 }
1118 if (cb->cb_dryrun) {
1119 zfs_close(zhp);
1120 return (0);
1121 }
1122
1123 /*
1124 * We batch up all contiguous snapshots (even of different
1125 * filesystems) and destroy them with one ioctl. We can't
1126 * simply do all snap deletions and then all fs deletions,
1127 * because we must delete a clone before its origin.
1128 */
1129 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
1130 fnvlist_add_boolean(cb->cb_batchedsnaps, name);
1131 } else {
1132 int error = zfs_destroy_snaps_nvl(g_zfs,
1133 cb->cb_batchedsnaps, B_FALSE);
1134 fnvlist_free(cb->cb_batchedsnaps);
1135 cb->cb_batchedsnaps = fnvlist_alloc();
1136
1137 if (error != 0 ||
1138 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
1139 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
1140 zfs_close(zhp);
1141 return (-1);
1142 }
1143 }
1144
1145 zfs_close(zhp);
1146 return (0);
1147 }
1148
1149 static int
1150 destroy_print_cb(zfs_handle_t *zhp, void *arg)
1151 {
1152 destroy_cbdata_t *cb = arg;
1153 const char *name = zfs_get_name(zhp);
1154 int err = 0;
1155
1156 if (nvlist_exists(cb->cb_nvl, name)) {
1157 if (cb->cb_firstsnap == NULL)
1158 cb->cb_firstsnap = strdup(name);
1159 if (cb->cb_prevsnap != NULL)
1160 free(cb->cb_prevsnap);
1161 /* this snap continues the current range */
1162 cb->cb_prevsnap = strdup(name);
1163 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1164 nomem();
1165 if (cb->cb_verbose) {
1166 if (cb->cb_parsable) {
1167 (void) printf("destroy\t%s\n", name);
1168 } else if (cb->cb_dryrun) {
1169 (void) printf(gettext("would destroy %s\n"),
1170 name);
1171 } else {
1172 (void) printf(gettext("will destroy %s\n"),
1173 name);
1174 }
1175 }
1176 } else if (cb->cb_firstsnap != NULL) {
1177 /* end of this range */
1178 uint64_t used = 0;
1179 err = lzc_snaprange_space(cb->cb_firstsnap,
1180 cb->cb_prevsnap, &used);
1181 cb->cb_snapused += used;
1182 free(cb->cb_firstsnap);
1183 cb->cb_firstsnap = NULL;
1184 free(cb->cb_prevsnap);
1185 cb->cb_prevsnap = NULL;
1186 }
1187 zfs_close(zhp);
1188 return (err);
1189 }
1190
1191 static int
1192 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1193 {
1194 int err;
1195 assert(cb->cb_firstsnap == NULL);
1196 assert(cb->cb_prevsnap == NULL);
1197 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1198 if (cb->cb_firstsnap != NULL) {
1199 uint64_t used = 0;
1200 if (err == 0) {
1201 err = lzc_snaprange_space(cb->cb_firstsnap,
1202 cb->cb_prevsnap, &used);
1203 }
1204 cb->cb_snapused += used;
1205 free(cb->cb_firstsnap);
1206 cb->cb_firstsnap = NULL;
1207 free(cb->cb_prevsnap);
1208 cb->cb_prevsnap = NULL;
1209 }
1210 return (err);
1211 }
1212
1213 static int
1214 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1215 {
1216 destroy_cbdata_t *cb = arg;
1217 int err = 0;
1218
1219 /* Check for clones. */
1220 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1221 cb->cb_target = zhp;
1222 cb->cb_first = B_TRUE;
1223 err = zfs_iter_dependents(zhp, B_TRUE,
1224 destroy_check_dependent, cb);
1225 }
1226
1227 if (err == 0) {
1228 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1229 nomem();
1230 }
1231 zfs_close(zhp);
1232 return (err);
1233 }
1234
1235 static int
1236 gather_snapshots(zfs_handle_t *zhp, void *arg)
1237 {
1238 destroy_cbdata_t *cb = arg;
1239 int err = 0;
1240
1241 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1242 if (err == ENOENT)
1243 err = 0;
1244 if (err != 0)
1245 goto out;
1246
1247 if (cb->cb_verbose) {
1248 err = destroy_print_snapshots(zhp, cb);
1249 if (err != 0)
1250 goto out;
1251 }
1252
1253 if (cb->cb_recurse)
1254 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1255
1256 out:
1257 zfs_close(zhp);
1258 return (err);
1259 }
1260
1261 static int
1262 destroy_clones(destroy_cbdata_t *cb)
1263 {
1264 nvpair_t *pair;
1265 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1266 pair != NULL;
1267 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1268 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1269 ZFS_TYPE_SNAPSHOT);
1270 if (zhp != NULL) {
1271 boolean_t defer = cb->cb_defer_destroy;
1272 int err;
1273
1274 /*
1275 * We can't defer destroy non-snapshots, so set it to
1276 * false while destroying the clones.
1277 */
1278 cb->cb_defer_destroy = B_FALSE;
1279 err = zfs_iter_dependents(zhp, B_FALSE,
1280 destroy_callback, cb);
1281 cb->cb_defer_destroy = defer;
1282 zfs_close(zhp);
1283 if (err != 0)
1284 return (err);
1285 }
1286 }
1287 return (0);
1288 }
1289
1290 static int
1291 zfs_do_destroy(int argc, char **argv)
1292 {
1293 destroy_cbdata_t cb = { 0 };
1294 int rv = 0;
1295 int err = 0;
1296 int c;
1297 zfs_handle_t *zhp = NULL;
1298 char *at, *pound;
1299 zfs_type_t type = ZFS_TYPE_DATASET;
1300
1301 /* check options */
1302 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1303 switch (c) {
1304 case 'v':
1305 cb.cb_verbose = B_TRUE;
1306 break;
1307 case 'p':
1308 cb.cb_verbose = B_TRUE;
1309 cb.cb_parsable = B_TRUE;
1310 break;
1311 case 'n':
1312 cb.cb_dryrun = B_TRUE;
1313 break;
1314 case 'd':
1315 cb.cb_defer_destroy = B_TRUE;
1316 type = ZFS_TYPE_SNAPSHOT;
1317 break;
1318 case 'f':
1319 cb.cb_force = B_TRUE;
1320 break;
1321 case 'r':
1322 cb.cb_recurse = B_TRUE;
1323 break;
1324 case 'R':
1325 cb.cb_recurse = B_TRUE;
1326 cb.cb_doclones = B_TRUE;
1327 break;
1328 case '?':
1329 default:
1330 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1331 optopt);
1332 usage(B_FALSE);
1333 }
1334 }
1335
1336 argc -= optind;
1337 argv += optind;
1338
1339 /* check number of arguments */
1340 if (argc == 0) {
1341 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1342 usage(B_FALSE);
1343 }
1344 if (argc > 1) {
1345 (void) fprintf(stderr, gettext("too many arguments\n"));
1346 usage(B_FALSE);
1347 }
1348
1349 at = strchr(argv[0], '@');
1350 pound = strchr(argv[0], '#');
1351 if (at != NULL) {
1352
1353 /* Build the list of snaps to destroy in cb_nvl. */
1354 cb.cb_nvl = fnvlist_alloc();
1355
1356 *at = '\0';
1357 zhp = zfs_open(g_zfs, argv[0],
1358 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1359 if (zhp == NULL) {
1360 nvlist_free(cb.cb_nvl);
1361 return (1);
1362 }
1363
1364 cb.cb_snapspec = at + 1;
1365 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1366 cb.cb_error) {
1367 rv = 1;
1368 goto out;
1369 }
1370
1371 if (nvlist_empty(cb.cb_nvl)) {
1372 (void) fprintf(stderr, gettext("could not find any "
1373 "snapshots to destroy; check snapshot names.\n"));
1374 rv = 1;
1375 goto out;
1376 }
1377
1378 if (cb.cb_verbose) {
1379 char buf[16];
1380 zfs_nicebytes(cb.cb_snapused, buf, sizeof (buf));
1381 if (cb.cb_parsable) {
1382 (void) printf("reclaim\t%llu\n",
1383 (u_longlong_t)cb.cb_snapused);
1384 } else if (cb.cb_dryrun) {
1385 (void) printf(gettext("would reclaim %s\n"),
1386 buf);
1387 } else {
1388 (void) printf(gettext("will reclaim %s\n"),
1389 buf);
1390 }
1391 }
1392
1393 if (!cb.cb_dryrun) {
1394 if (cb.cb_doclones) {
1395 cb.cb_batchedsnaps = fnvlist_alloc();
1396 err = destroy_clones(&cb);
1397 if (err == 0) {
1398 err = zfs_destroy_snaps_nvl(g_zfs,
1399 cb.cb_batchedsnaps, B_FALSE);
1400 }
1401 if (err != 0) {
1402 rv = 1;
1403 goto out;
1404 }
1405 }
1406 if (err == 0) {
1407 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1408 cb.cb_defer_destroy);
1409 }
1410 }
1411
1412 if (err != 0)
1413 rv = 1;
1414 } else if (pound != NULL) {
1415 int err;
1416 nvlist_t *nvl;
1417
1418 if (cb.cb_dryrun) {
1419 (void) fprintf(stderr,
1420 "dryrun is not supported with bookmark\n");
1421 return (-1);
1422 }
1423
1424 if (cb.cb_defer_destroy) {
1425 (void) fprintf(stderr,
1426 "defer destroy is not supported with bookmark\n");
1427 return (-1);
1428 }
1429
1430 if (cb.cb_recurse) {
1431 (void) fprintf(stderr,
1432 "recursive is not supported with bookmark\n");
1433 return (-1);
1434 }
1435
1436 if (!zfs_bookmark_exists(argv[0])) {
1437 (void) fprintf(stderr, gettext("bookmark '%s' "
1438 "does not exist.\n"), argv[0]);
1439 return (1);
1440 }
1441
1442 nvl = fnvlist_alloc();
1443 fnvlist_add_boolean(nvl, argv[0]);
1444
1445 err = lzc_destroy_bookmarks(nvl, NULL);
1446 if (err != 0) {
1447 (void) zfs_standard_error(g_zfs, err,
1448 "cannot destroy bookmark");
1449 }
1450
1451 nvlist_free(nvl);
1452
1453 return (err);
1454 } else {
1455 /* Open the given dataset */
1456 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1457 return (1);
1458
1459 cb.cb_target = zhp;
1460
1461 /*
1462 * Perform an explicit check for pools before going any further.
1463 */
1464 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1465 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1466 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1467 "operation does not apply to pools\n"),
1468 zfs_get_name(zhp));
1469 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1470 "%s' to destroy all datasets in the pool\n"),
1471 zfs_get_name(zhp));
1472 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1473 "to destroy the pool itself\n"), zfs_get_name(zhp));
1474 rv = 1;
1475 goto out;
1476 }
1477
1478 /*
1479 * Check for any dependents and/or clones.
1480 */
1481 cb.cb_first = B_TRUE;
1482 if (!cb.cb_doclones &&
1483 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1484 &cb) != 0) {
1485 rv = 1;
1486 goto out;
1487 }
1488
1489 if (cb.cb_error) {
1490 rv = 1;
1491 goto out;
1492 }
1493
1494 cb.cb_batchedsnaps = fnvlist_alloc();
1495 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1496 &cb) != 0) {
1497 rv = 1;
1498 goto out;
1499 }
1500
1501 /*
1502 * Do the real thing. The callback will close the
1503 * handle regardless of whether it succeeds or not.
1504 */
1505 err = destroy_callback(zhp, &cb);
1506 zhp = NULL;
1507 if (err == 0) {
1508 err = zfs_destroy_snaps_nvl(g_zfs,
1509 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1510 }
1511 if (err != 0)
1512 rv = 1;
1513 }
1514
1515 out:
1516 fnvlist_free(cb.cb_batchedsnaps);
1517 fnvlist_free(cb.cb_nvl);
1518 if (zhp != NULL)
1519 zfs_close(zhp);
1520 return (rv);
1521 }
1522
1523 static boolean_t
1524 is_recvd_column(zprop_get_cbdata_t *cbp)
1525 {
1526 int i;
1527 zfs_get_column_t col;
1528
1529 for (i = 0; i < ZFS_GET_NCOLS &&
1530 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1531 if (col == GET_COL_RECVD)
1532 return (B_TRUE);
1533 return (B_FALSE);
1534 }
1535
1536 /*
1537 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1538 * < all | property[,property]... > < fs | snap | vol > ...
1539 *
1540 * -r recurse over any child datasets
1541 * -H scripted mode. Headers are stripped, and fields are separated
1542 * by tabs instead of spaces.
1543 * -o Set of fields to display. One of "name,property,value,
1544 * received,source". Default is "name,property,value,source".
1545 * "all" is an alias for all five.
1546 * -s Set of sources to allow. One of
1547 * "local,default,inherited,received,temporary,none". Default is
1548 * all six.
1549 * -p Display values in parsable (literal) format.
1550 *
1551 * Prints properties for the given datasets. The user can control which
1552 * columns to display as well as which property types to allow.
1553 */
1554
1555 /*
1556 * Invoked to display the properties for a single dataset.
1557 */
1558 static int
1559 get_callback(zfs_handle_t *zhp, void *data)
1560 {
1561 char buf[ZFS_MAXPROPLEN];
1562 char rbuf[ZFS_MAXPROPLEN];
1563 zprop_source_t sourcetype;
1564 char source[ZFS_MAX_DATASET_NAME_LEN];
1565 zprop_get_cbdata_t *cbp = data;
1566 nvlist_t *user_props = zfs_get_user_props(zhp);
1567 zprop_list_t *pl = cbp->cb_proplist;
1568 nvlist_t *propval;
1569 char *strval;
1570 char *sourceval;
1571 boolean_t received = is_recvd_column(cbp);
1572
1573 for (; pl != NULL; pl = pl->pl_next) {
1574 char *recvdval = NULL;
1575 /*
1576 * Skip the special fake placeholder. This will also skip over
1577 * the name property when 'all' is specified.
1578 */
1579 if (pl->pl_prop == ZFS_PROP_NAME &&
1580 pl == cbp->cb_proplist)
1581 continue;
1582
1583 if (pl->pl_prop != ZPROP_INVAL) {
1584 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1585 sizeof (buf), &sourcetype, source,
1586 sizeof (source),
1587 cbp->cb_literal) != 0) {
1588 if (pl->pl_all)
1589 continue;
1590 if (!zfs_prop_valid_for_type(pl->pl_prop,
1591 ZFS_TYPE_DATASET, B_FALSE)) {
1592 (void) fprintf(stderr,
1593 gettext("No such property '%s'\n"),
1594 zfs_prop_to_name(pl->pl_prop));
1595 continue;
1596 }
1597 sourcetype = ZPROP_SRC_NONE;
1598 (void) strlcpy(buf, "-", sizeof (buf));
1599 }
1600
1601 if (received && (zfs_prop_get_recvd(zhp,
1602 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1603 cbp->cb_literal) == 0))
1604 recvdval = rbuf;
1605
1606 zprop_print_one_property(zfs_get_name(zhp), cbp,
1607 zfs_prop_to_name(pl->pl_prop),
1608 buf, sourcetype, source, recvdval);
1609 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1610 sourcetype = ZPROP_SRC_LOCAL;
1611
1612 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1613 buf, sizeof (buf), cbp->cb_literal) != 0) {
1614 sourcetype = ZPROP_SRC_NONE;
1615 (void) strlcpy(buf, "-", sizeof (buf));
1616 }
1617
1618 zprop_print_one_property(zfs_get_name(zhp), cbp,
1619 pl->pl_user_prop, buf, sourcetype, source, NULL);
1620 } else if (zfs_prop_written(pl->pl_user_prop)) {
1621 sourcetype = ZPROP_SRC_LOCAL;
1622
1623 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1624 buf, sizeof (buf), cbp->cb_literal) != 0) {
1625 sourcetype = ZPROP_SRC_NONE;
1626 (void) strlcpy(buf, "-", sizeof (buf));
1627 }
1628
1629 zprop_print_one_property(zfs_get_name(zhp), cbp,
1630 pl->pl_user_prop, buf, sourcetype, source, NULL);
1631 } else {
1632 if (nvlist_lookup_nvlist(user_props,
1633 pl->pl_user_prop, &propval) != 0) {
1634 if (pl->pl_all)
1635 continue;
1636 sourcetype = ZPROP_SRC_NONE;
1637 strval = "-";
1638 } else {
1639 verify(nvlist_lookup_string(propval,
1640 ZPROP_VALUE, &strval) == 0);
1641 verify(nvlist_lookup_string(propval,
1642 ZPROP_SOURCE, &sourceval) == 0);
1643
1644 if (strcmp(sourceval,
1645 zfs_get_name(zhp)) == 0) {
1646 sourcetype = ZPROP_SRC_LOCAL;
1647 } else if (strcmp(sourceval,
1648 ZPROP_SOURCE_VAL_RECVD) == 0) {
1649 sourcetype = ZPROP_SRC_RECEIVED;
1650 } else {
1651 sourcetype = ZPROP_SRC_INHERITED;
1652 (void) strlcpy(source,
1653 sourceval, sizeof (source));
1654 }
1655 }
1656
1657 if (received && (zfs_prop_get_recvd(zhp,
1658 pl->pl_user_prop, rbuf, sizeof (rbuf),
1659 cbp->cb_literal) == 0))
1660 recvdval = rbuf;
1661
1662 zprop_print_one_property(zfs_get_name(zhp), cbp,
1663 pl->pl_user_prop, strval, sourcetype,
1664 source, recvdval);
1665 }
1666 }
1667
1668 return (0);
1669 }
1670
1671 static int
1672 zfs_do_get(int argc, char **argv)
1673 {
1674 zprop_get_cbdata_t cb = { 0 };
1675 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1676 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK;
1677 char *value, *fields;
1678 int ret = 0;
1679 int limit = 0;
1680 zprop_list_t fake_name = { 0 };
1681
1682 /*
1683 * Set up default columns and sources.
1684 */
1685 cb.cb_sources = ZPROP_SRC_ALL;
1686 cb.cb_columns[0] = GET_COL_NAME;
1687 cb.cb_columns[1] = GET_COL_PROPERTY;
1688 cb.cb_columns[2] = GET_COL_VALUE;
1689 cb.cb_columns[3] = GET_COL_SOURCE;
1690 cb.cb_type = ZFS_TYPE_DATASET;
1691
1692 /* check options */
1693 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1694 switch (c) {
1695 case 'p':
1696 cb.cb_literal = B_TRUE;
1697 break;
1698 case 'd':
1699 limit = parse_depth(optarg, &flags);
1700 break;
1701 case 'r':
1702 flags |= ZFS_ITER_RECURSE;
1703 break;
1704 case 'H':
1705 cb.cb_scripted = B_TRUE;
1706 break;
1707 case ':':
1708 (void) fprintf(stderr, gettext("missing argument for "
1709 "'%c' option\n"), optopt);
1710 usage(B_FALSE);
1711 break;
1712 case 'o':
1713 /*
1714 * Process the set of columns to display. We zero out
1715 * the structure to give us a blank slate.
1716 */
1717 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1718 i = 0;
1719 while (*optarg != '\0') {
1720 static char *col_subopts[] =
1721 { "name", "property", "value", "received",
1722 "source", "all", NULL };
1723
1724 if (i == ZFS_GET_NCOLS) {
1725 (void) fprintf(stderr, gettext("too "
1726 "many fields given to -o "
1727 "option\n"));
1728 usage(B_FALSE);
1729 }
1730
1731 switch (getsubopt(&optarg, col_subopts,
1732 &value)) {
1733 case 0:
1734 cb.cb_columns[i++] = GET_COL_NAME;
1735 break;
1736 case 1:
1737 cb.cb_columns[i++] = GET_COL_PROPERTY;
1738 break;
1739 case 2:
1740 cb.cb_columns[i++] = GET_COL_VALUE;
1741 break;
1742 case 3:
1743 cb.cb_columns[i++] = GET_COL_RECVD;
1744 flags |= ZFS_ITER_RECVD_PROPS;
1745 break;
1746 case 4:
1747 cb.cb_columns[i++] = GET_COL_SOURCE;
1748 break;
1749 case 5:
1750 if (i > 0) {
1751 (void) fprintf(stderr,
1752 gettext("\"all\" conflicts "
1753 "with specific fields "
1754 "given to -o option\n"));
1755 usage(B_FALSE);
1756 }
1757 cb.cb_columns[0] = GET_COL_NAME;
1758 cb.cb_columns[1] = GET_COL_PROPERTY;
1759 cb.cb_columns[2] = GET_COL_VALUE;
1760 cb.cb_columns[3] = GET_COL_RECVD;
1761 cb.cb_columns[4] = GET_COL_SOURCE;
1762 flags |= ZFS_ITER_RECVD_PROPS;
1763 i = ZFS_GET_NCOLS;
1764 break;
1765 default:
1766 (void) fprintf(stderr,
1767 gettext("invalid column name "
1768 "'%s'\n"), value);
1769 usage(B_FALSE);
1770 }
1771 }
1772 break;
1773
1774 case 's':
1775 cb.cb_sources = 0;
1776 while (*optarg != '\0') {
1777 static char *source_subopts[] = {
1778 "local", "default", "inherited",
1779 "received", "temporary", "none",
1780 NULL };
1781
1782 switch (getsubopt(&optarg, source_subopts,
1783 &value)) {
1784 case 0:
1785 cb.cb_sources |= ZPROP_SRC_LOCAL;
1786 break;
1787 case 1:
1788 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1789 break;
1790 case 2:
1791 cb.cb_sources |= ZPROP_SRC_INHERITED;
1792 break;
1793 case 3:
1794 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1795 break;
1796 case 4:
1797 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1798 break;
1799 case 5:
1800 cb.cb_sources |= ZPROP_SRC_NONE;
1801 break;
1802 default:
1803 (void) fprintf(stderr,
1804 gettext("invalid source "
1805 "'%s'\n"), value);
1806 usage(B_FALSE);
1807 }
1808 }
1809 break;
1810
1811 case 't':
1812 types = 0;
1813 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1814 while (*optarg != '\0') {
1815 static char *type_subopts[] = { "filesystem",
1816 "volume", "snapshot", "bookmark",
1817 "all", NULL };
1818
1819 switch (getsubopt(&optarg, type_subopts,
1820 &value)) {
1821 case 0:
1822 types |= ZFS_TYPE_FILESYSTEM;
1823 break;
1824 case 1:
1825 types |= ZFS_TYPE_VOLUME;
1826 break;
1827 case 2:
1828 types |= ZFS_TYPE_SNAPSHOT;
1829 break;
1830 case 3:
1831 types |= ZFS_TYPE_BOOKMARK;
1832 break;
1833 case 4:
1834 types = ZFS_TYPE_DATASET |
1835 ZFS_TYPE_BOOKMARK;
1836 break;
1837
1838 default:
1839 (void) fprintf(stderr,
1840 gettext("invalid type '%s'\n"),
1841 value);
1842 usage(B_FALSE);
1843 }
1844 }
1845 break;
1846
1847 case '?':
1848 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1849 optopt);
1850 usage(B_FALSE);
1851 }
1852 }
1853
1854 argc -= optind;
1855 argv += optind;
1856
1857 if (argc < 1) {
1858 (void) fprintf(stderr, gettext("missing property "
1859 "argument\n"));
1860 usage(B_FALSE);
1861 }
1862
1863 fields = argv[0];
1864
1865 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1866 != 0)
1867 usage(B_FALSE);
1868
1869 argc--;
1870 argv++;
1871
1872 /*
1873 * As part of zfs_expand_proplist(), we keep track of the maximum column
1874 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1875 * need to know the maximum name length. However, the user likely did
1876 * not specify 'name' as one of the properties to fetch, so we need to
1877 * make sure we always include at least this property for
1878 * print_get_headers() to work properly.
1879 */
1880 if (cb.cb_proplist != NULL) {
1881 fake_name.pl_prop = ZFS_PROP_NAME;
1882 fake_name.pl_width = strlen(gettext("NAME"));
1883 fake_name.pl_next = cb.cb_proplist;
1884 cb.cb_proplist = &fake_name;
1885 }
1886
1887 cb.cb_first = B_TRUE;
1888
1889 /* run for each object */
1890 ret = zfs_for_each(argc, argv, flags, types, NULL,
1891 &cb.cb_proplist, limit, get_callback, &cb);
1892
1893 if (cb.cb_proplist == &fake_name)
1894 zprop_free_list(fake_name.pl_next);
1895 else
1896 zprop_free_list(cb.cb_proplist);
1897
1898 return (ret);
1899 }
1900
1901 /*
1902 * inherit [-rS] <property> <fs|vol> ...
1903 *
1904 * -r Recurse over all children
1905 * -S Revert to received value, if any
1906 *
1907 * For each dataset specified on the command line, inherit the given property
1908 * from its parent. Inheriting a property at the pool level will cause it to
1909 * use the default value. The '-r' flag will recurse over all children, and is
1910 * useful for setting a property on a hierarchy-wide basis, regardless of any
1911 * local modifications for each dataset.
1912 */
1913
1914 typedef struct inherit_cbdata {
1915 const char *cb_propname;
1916 boolean_t cb_received;
1917 } inherit_cbdata_t;
1918
1919 static int
1920 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1921 {
1922 inherit_cbdata_t *cb = data;
1923 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1924
1925 /*
1926 * If we're doing it recursively, then ignore properties that
1927 * are not valid for this type of dataset.
1928 */
1929 if (prop != ZPROP_INVAL &&
1930 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE))
1931 return (0);
1932
1933 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1934 }
1935
1936 static int
1937 inherit_cb(zfs_handle_t *zhp, void *data)
1938 {
1939 inherit_cbdata_t *cb = data;
1940
1941 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1942 }
1943
1944 static int
1945 zfs_do_inherit(int argc, char **argv)
1946 {
1947 int c;
1948 zfs_prop_t prop;
1949 inherit_cbdata_t cb = { 0 };
1950 char *propname;
1951 int ret = 0;
1952 int flags = 0;
1953 boolean_t received = B_FALSE;
1954
1955 /* check options */
1956 while ((c = getopt(argc, argv, "rS")) != -1) {
1957 switch (c) {
1958 case 'r':
1959 flags |= ZFS_ITER_RECURSE;
1960 break;
1961 case 'S':
1962 received = B_TRUE;
1963 break;
1964 case '?':
1965 default:
1966 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1967 optopt);
1968 usage(B_FALSE);
1969 }
1970 }
1971
1972 argc -= optind;
1973 argv += optind;
1974
1975 /* check number of arguments */
1976 if (argc < 1) {
1977 (void) fprintf(stderr, gettext("missing property argument\n"));
1978 usage(B_FALSE);
1979 }
1980 if (argc < 2) {
1981 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1982 usage(B_FALSE);
1983 }
1984
1985 propname = argv[0];
1986 argc--;
1987 argv++;
1988
1989 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1990 if (zfs_prop_readonly(prop)) {
1991 (void) fprintf(stderr, gettext(
1992 "%s property is read-only\n"),
1993 propname);
1994 return (1);
1995 }
1996 if (!zfs_prop_inheritable(prop) && !received) {
1997 (void) fprintf(stderr, gettext("'%s' property cannot "
1998 "be inherited\n"), propname);
1999 if (prop == ZFS_PROP_QUOTA ||
2000 prop == ZFS_PROP_RESERVATION ||
2001 prop == ZFS_PROP_REFQUOTA ||
2002 prop == ZFS_PROP_REFRESERVATION) {
2003 (void) fprintf(stderr, gettext("use 'zfs set "
2004 "%s=none' to clear\n"), propname);
2005 (void) fprintf(stderr, gettext("use 'zfs "
2006 "inherit -S %s' to revert to received "
2007 "value\n"), propname);
2008 }
2009 return (1);
2010 }
2011 if (received && (prop == ZFS_PROP_VOLSIZE ||
2012 prop == ZFS_PROP_VERSION)) {
2013 (void) fprintf(stderr, gettext("'%s' property cannot "
2014 "be reverted to a received value\n"), propname);
2015 return (1);
2016 }
2017 } else if (!zfs_prop_user(propname)) {
2018 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
2019 propname);
2020 usage(B_FALSE);
2021 }
2022
2023 cb.cb_propname = propname;
2024 cb.cb_received = received;
2025
2026 if (flags & ZFS_ITER_RECURSE) {
2027 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
2028 NULL, NULL, 0, inherit_recurse_cb, &cb);
2029 } else {
2030 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
2031 NULL, NULL, 0, inherit_cb, &cb);
2032 }
2033
2034 return (ret);
2035 }
2036
2037 typedef struct upgrade_cbdata {
2038 uint64_t cb_numupgraded;
2039 uint64_t cb_numsamegraded;
2040 uint64_t cb_numfailed;
2041 uint64_t cb_version;
2042 boolean_t cb_newer;
2043 boolean_t cb_foundone;
2044 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
2045 } upgrade_cbdata_t;
2046
2047 static int
2048 same_pool(zfs_handle_t *zhp, const char *name)
2049 {
2050 int len1 = strcspn(name, "/@");
2051 const char *zhname = zfs_get_name(zhp);
2052 int len2 = strcspn(zhname, "/@");
2053
2054 if (len1 != len2)
2055 return (B_FALSE);
2056 return (strncmp(name, zhname, len1) == 0);
2057 }
2058
2059 static int
2060 upgrade_list_callback(zfs_handle_t *zhp, void *data)
2061 {
2062 upgrade_cbdata_t *cb = data;
2063 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2064
2065 /* list if it's old/new */
2066 if ((!cb->cb_newer && version < ZPL_VERSION) ||
2067 (cb->cb_newer && version > ZPL_VERSION)) {
2068 char *str;
2069 if (cb->cb_newer) {
2070 str = gettext("The following filesystems are "
2071 "formatted using a newer software version and\n"
2072 "cannot be accessed on the current system.\n\n");
2073 } else {
2074 str = gettext("The following filesystems are "
2075 "out of date, and can be upgraded. After being\n"
2076 "upgraded, these filesystems (and any 'zfs send' "
2077 "streams generated from\n"
2078 "subsequent snapshots) will no longer be "
2079 "accessible by older software versions.\n\n");
2080 }
2081
2082 if (!cb->cb_foundone) {
2083 (void) puts(str);
2084 (void) printf(gettext("VER FILESYSTEM\n"));
2085 (void) printf(gettext("--- ------------\n"));
2086 cb->cb_foundone = B_TRUE;
2087 }
2088
2089 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
2090 }
2091
2092 return (0);
2093 }
2094
2095 static int
2096 upgrade_set_callback(zfs_handle_t *zhp, void *data)
2097 {
2098 upgrade_cbdata_t *cb = data;
2099 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2100 int needed_spa_version;
2101 int spa_version;
2102
2103 if (zfs_spa_version(zhp, &spa_version) < 0)
2104 return (-1);
2105
2106 needed_spa_version = zfs_spa_version_map(cb->cb_version);
2107
2108 if (needed_spa_version < 0)
2109 return (-1);
2110
2111 if (spa_version < needed_spa_version) {
2112 /* can't upgrade */
2113 (void) printf(gettext("%s: can not be "
2114 "upgraded; the pool version needs to first "
2115 "be upgraded\nto version %d\n\n"),
2116 zfs_get_name(zhp), needed_spa_version);
2117 cb->cb_numfailed++;
2118 return (0);
2119 }
2120
2121 /* upgrade */
2122 if (version < cb->cb_version) {
2123 char verstr[16];
2124 (void) snprintf(verstr, sizeof (verstr),
2125 "%llu", (u_longlong_t)cb->cb_version);
2126 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
2127 /*
2128 * If they did "zfs upgrade -a", then we could
2129 * be doing ioctls to different pools. We need
2130 * to log this history once to each pool, and bypass
2131 * the normal history logging that happens in main().
2132 */
2133 (void) zpool_log_history(g_zfs, history_str);
2134 log_history = B_FALSE;
2135 }
2136 if (zfs_prop_set(zhp, "version", verstr) == 0)
2137 cb->cb_numupgraded++;
2138 else
2139 cb->cb_numfailed++;
2140 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
2141 } else if (version > cb->cb_version) {
2142 /* can't downgrade */
2143 (void) printf(gettext("%s: can not be downgraded; "
2144 "it is already at version %u\n"),
2145 zfs_get_name(zhp), version);
2146 cb->cb_numfailed++;
2147 } else {
2148 cb->cb_numsamegraded++;
2149 }
2150 return (0);
2151 }
2152
2153 /*
2154 * zfs upgrade
2155 * zfs upgrade -v
2156 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
2157 */
2158 static int
2159 zfs_do_upgrade(int argc, char **argv)
2160 {
2161 boolean_t all = B_FALSE;
2162 boolean_t showversions = B_FALSE;
2163 int ret = 0;
2164 upgrade_cbdata_t cb = { 0 };
2165 signed char c;
2166 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
2167
2168 /* check options */
2169 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
2170 switch (c) {
2171 case 'r':
2172 flags |= ZFS_ITER_RECURSE;
2173 break;
2174 case 'v':
2175 showversions = B_TRUE;
2176 break;
2177 case 'V':
2178 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2179 optarg, &cb.cb_version) != 0) {
2180 (void) fprintf(stderr,
2181 gettext("invalid version %s\n"), optarg);
2182 usage(B_FALSE);
2183 }
2184 break;
2185 case 'a':
2186 all = B_TRUE;
2187 break;
2188 case '?':
2189 default:
2190 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2191 optopt);
2192 usage(B_FALSE);
2193 }
2194 }
2195
2196 argc -= optind;
2197 argv += optind;
2198
2199 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2200 usage(B_FALSE);
2201 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2202 cb.cb_version || argc))
2203 usage(B_FALSE);
2204 if ((all || argc) && (showversions))
2205 usage(B_FALSE);
2206 if (all && argc)
2207 usage(B_FALSE);
2208
2209 if (showversions) {
2210 /* Show info on available versions. */
2211 (void) printf(gettext("The following filesystem versions are "
2212 "supported:\n\n"));
2213 (void) printf(gettext("VER DESCRIPTION\n"));
2214 (void) printf("--- -----------------------------------------"
2215 "---------------\n");
2216 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2217 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2218 (void) printf(gettext(" 3 Case insensitive and filesystem "
2219 "user identifier (FUID)\n"));
2220 (void) printf(gettext(" 4 userquota, groupquota "
2221 "properties\n"));
2222 (void) printf(gettext(" 5 System attributes\n"));
2223 (void) printf(gettext("\nFor more information on a particular "
2224 "version, including supported releases,\n"));
2225 (void) printf("see the ZFS Administration Guide.\n\n");
2226 ret = 0;
2227 } else if (argc || all) {
2228 /* Upgrade filesystems */
2229 if (cb.cb_version == 0)
2230 cb.cb_version = ZPL_VERSION;
2231 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2232 NULL, NULL, 0, upgrade_set_callback, &cb);
2233 (void) printf(gettext("%llu filesystems upgraded\n"),
2234 (u_longlong_t)cb.cb_numupgraded);
2235 if (cb.cb_numsamegraded) {
2236 (void) printf(gettext("%llu filesystems already at "
2237 "this version\n"),
2238 (u_longlong_t)cb.cb_numsamegraded);
2239 }
2240 if (cb.cb_numfailed != 0)
2241 ret = 1;
2242 } else {
2243 /* List old-version filesystems */
2244 boolean_t found;
2245 (void) printf(gettext("This system is currently running "
2246 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2247
2248 flags |= ZFS_ITER_RECURSE;
2249 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2250 NULL, NULL, 0, upgrade_list_callback, &cb);
2251
2252 found = cb.cb_foundone;
2253 cb.cb_foundone = B_FALSE;
2254 cb.cb_newer = B_TRUE;
2255
2256 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2257 NULL, NULL, 0, upgrade_list_callback, &cb);
2258
2259 if (!cb.cb_foundone && !found) {
2260 (void) printf(gettext("All filesystems are "
2261 "formatted with the current version.\n"));
2262 }
2263 }
2264
2265 return (ret);
2266 }
2267
2268 /*
2269 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2270 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2271 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2272 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2273 *
2274 * -H Scripted mode; elide headers and separate columns by tabs.
2275 * -i Translate SID to POSIX ID.
2276 * -n Print numeric ID instead of user/group name.
2277 * -o Control which fields to display.
2278 * -p Use exact (parsable) numeric output.
2279 * -s Specify sort columns, descending order.
2280 * -S Specify sort columns, ascending order.
2281 * -t Control which object types to display.
2282 *
2283 * Displays space consumed by, and quotas on, each user in the specified
2284 * filesystem or snapshot.
2285 */
2286
2287 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2288 enum us_field_types {
2289 USFIELD_TYPE,
2290 USFIELD_NAME,
2291 USFIELD_USED,
2292 USFIELD_QUOTA,
2293 USFIELD_OBJUSED,
2294 USFIELD_OBJQUOTA
2295 };
2296 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA",
2297 "OBJUSED", "OBJQUOTA" };
2298 static char *us_field_names[] = { "type", "name", "used", "quota",
2299 "objused", "objquota" };
2300 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2301
2302 #define USTYPE_PSX_GRP (1 << 0)
2303 #define USTYPE_PSX_USR (1 << 1)
2304 #define USTYPE_SMB_GRP (1 << 2)
2305 #define USTYPE_SMB_USR (1 << 3)
2306 #define USTYPE_ALL \
2307 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2308
2309 static int us_type_bits[] = {
2310 USTYPE_PSX_GRP,
2311 USTYPE_PSX_USR,
2312 USTYPE_SMB_GRP,
2313 USTYPE_SMB_USR,
2314 USTYPE_ALL
2315 };
2316 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2317 "smbuser", "all" };
2318
2319 typedef struct us_node {
2320 nvlist_t *usn_nvl;
2321 uu_avl_node_t usn_avlnode;
2322 uu_list_node_t usn_listnode;
2323 } us_node_t;
2324
2325 typedef struct us_cbdata {
2326 nvlist_t **cb_nvlp;
2327 uu_avl_pool_t *cb_avl_pool;
2328 uu_avl_t *cb_avl;
2329 boolean_t cb_numname;
2330 boolean_t cb_nicenum;
2331 boolean_t cb_sid2posix;
2332 zfs_userquota_prop_t cb_prop;
2333 zfs_sort_column_t *cb_sortcol;
2334 size_t cb_width[USFIELD_LAST];
2335 } us_cbdata_t;
2336
2337 static boolean_t us_populated = B_FALSE;
2338
2339 typedef struct {
2340 zfs_sort_column_t *si_sortcol;
2341 boolean_t si_numname;
2342 } us_sort_info_t;
2343
2344 static int
2345 us_field_index(char *field)
2346 {
2347 int i;
2348
2349 for (i = 0; i < USFIELD_LAST; i++) {
2350 if (strcmp(field, us_field_names[i]) == 0)
2351 return (i);
2352 }
2353
2354 return (-1);
2355 }
2356
2357 static int
2358 us_compare(const void *larg, const void *rarg, void *unused)
2359 {
2360 const us_node_t *l = larg;
2361 const us_node_t *r = rarg;
2362 us_sort_info_t *si = (us_sort_info_t *)unused;
2363 zfs_sort_column_t *sortcol = si->si_sortcol;
2364 boolean_t numname = si->si_numname;
2365 nvlist_t *lnvl = l->usn_nvl;
2366 nvlist_t *rnvl = r->usn_nvl;
2367 int rc = 0;
2368 boolean_t lvb, rvb;
2369
2370 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2371 char *lvstr = "";
2372 char *rvstr = "";
2373 uint32_t lv32 = 0;
2374 uint32_t rv32 = 0;
2375 uint64_t lv64 = 0;
2376 uint64_t rv64 = 0;
2377 zfs_prop_t prop = sortcol->sc_prop;
2378 const char *propname = NULL;
2379 boolean_t reverse = sortcol->sc_reverse;
2380
2381 switch (prop) {
2382 case ZFS_PROP_TYPE:
2383 propname = "type";
2384 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2385 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2386 if (rv32 != lv32)
2387 rc = (rv32 < lv32) ? 1 : -1;
2388 break;
2389 case ZFS_PROP_NAME:
2390 propname = "name";
2391 if (numname) {
2392 compare_nums:
2393 (void) nvlist_lookup_uint64(lnvl, propname,
2394 &lv64);
2395 (void) nvlist_lookup_uint64(rnvl, propname,
2396 &rv64);
2397 if (rv64 != lv64)
2398 rc = (rv64 < lv64) ? 1 : -1;
2399 } else {
2400 if ((nvlist_lookup_string(lnvl, propname,
2401 &lvstr) == ENOENT) ||
2402 (nvlist_lookup_string(rnvl, propname,
2403 &rvstr) == ENOENT)) {
2404 goto compare_nums;
2405 }
2406 rc = strcmp(lvstr, rvstr);
2407 }
2408 break;
2409 case ZFS_PROP_USED:
2410 case ZFS_PROP_QUOTA:
2411 if (!us_populated)
2412 break;
2413 if (prop == ZFS_PROP_USED)
2414 propname = "used";
2415 else
2416 propname = "quota";
2417 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2418 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2419 if (rv64 != lv64)
2420 rc = (rv64 < lv64) ? 1 : -1;
2421 break;
2422
2423 default:
2424 break;
2425 }
2426
2427 if (rc != 0) {
2428 if (rc < 0)
2429 return (reverse ? 1 : -1);
2430 else
2431 return (reverse ? -1 : 1);
2432 }
2433 }
2434
2435 /*
2436 * If entries still seem to be the same, check if they are of the same
2437 * type (smbentity is added only if we are doing SID to POSIX ID
2438 * translation where we can have duplicate type/name combinations).
2439 */
2440 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2441 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2442 lvb != rvb)
2443 return (lvb < rvb ? -1 : 1);
2444
2445 return (0);
2446 }
2447
2448 static boolean_t
2449 zfs_prop_is_user(unsigned p)
2450 {
2451 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA ||
2452 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA);
2453 }
2454
2455 static boolean_t
2456 zfs_prop_is_group(unsigned p)
2457 {
2458 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA ||
2459 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA);
2460 }
2461
2462 static inline const char *
2463 us_type2str(unsigned field_type)
2464 {
2465 switch (field_type) {
2466 case USTYPE_PSX_USR:
2467 return ("POSIX User");
2468 case USTYPE_PSX_GRP:
2469 return ("POSIX Group");
2470 case USTYPE_SMB_USR:
2471 return ("SMB User");
2472 case USTYPE_SMB_GRP:
2473 return ("SMB Group");
2474 default:
2475 return ("Undefined");
2476 }
2477 }
2478
2479 static int
2480 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2481 {
2482 us_cbdata_t *cb = (us_cbdata_t *)arg;
2483 zfs_userquota_prop_t prop = cb->cb_prop;
2484 char *name = NULL;
2485 char *propname;
2486 char sizebuf[32];
2487 us_node_t *node;
2488 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2489 uu_avl_t *avl = cb->cb_avl;
2490 uu_avl_index_t idx;
2491 nvlist_t *props;
2492 us_node_t *n;
2493 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2494 unsigned type = 0;
2495 const char *typestr;
2496 size_t namelen;
2497 size_t typelen;
2498 size_t sizelen;
2499 int typeidx, nameidx, sizeidx;
2500 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2501 boolean_t smbentity = B_FALSE;
2502
2503 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2504 nomem();
2505 node = safe_malloc(sizeof (us_node_t));
2506 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2507 node->usn_nvl = props;
2508
2509 if (domain != NULL && domain[0] != '\0') {
2510 #ifdef HAVE_IDMAP
2511 /* SMB */
2512 char sid[MAXNAMELEN + 32];
2513 uid_t id;
2514 uint64_t classes;
2515 int err;
2516 directory_error_t e;
2517
2518 smbentity = B_TRUE;
2519
2520 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2521
2522 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2523 type = USTYPE_SMB_GRP;
2524 err = sid_to_id(sid, B_FALSE, &id);
2525 } else {
2526 type = USTYPE_SMB_USR;
2527 err = sid_to_id(sid, B_TRUE, &id);
2528 }
2529
2530 if (err == 0) {
2531 rid = id;
2532 if (!cb->cb_sid2posix) {
2533 e = directory_name_from_sid(NULL, sid, &name,
2534 &classes);
2535 if (e != NULL)
2536 directory_error_free(e);
2537 if (name == NULL)
2538 name = sid;
2539 }
2540 }
2541 #else
2542 nvlist_free(props);
2543 free(node);
2544
2545 return (-1);
2546 #endif /* HAVE_IDMAP */
2547 }
2548
2549 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2550 /* POSIX or -i */
2551 if (zfs_prop_is_group(prop)) {
2552 type = USTYPE_PSX_GRP;
2553 if (!cb->cb_numname) {
2554 struct group *g;
2555
2556 if ((g = getgrgid(rid)) != NULL)
2557 name = g->gr_name;
2558 }
2559 } else {
2560 type = USTYPE_PSX_USR;
2561 if (!cb->cb_numname) {
2562 struct passwd *p;
2563
2564 if ((p = getpwuid(rid)) != NULL)
2565 name = p->pw_name;
2566 }
2567 }
2568 }
2569
2570 /*
2571 * Make sure that the type/name combination is unique when doing
2572 * SID to POSIX ID translation (hence changing the type from SMB to
2573 * POSIX).
2574 */
2575 if (cb->cb_sid2posix &&
2576 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2577 nomem();
2578
2579 /* Calculate/update width of TYPE field */
2580 typestr = us_type2str(type);
2581 typelen = strlen(gettext(typestr));
2582 typeidx = us_field_index("type");
2583 if (typelen > cb->cb_width[typeidx])
2584 cb->cb_width[typeidx] = typelen;
2585 if (nvlist_add_uint32(props, "type", type) != 0)
2586 nomem();
2587
2588 /* Calculate/update width of NAME field */
2589 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2590 if (nvlist_add_uint64(props, "name", rid) != 0)
2591 nomem();
2592 namelen = snprintf(NULL, 0, "%u", rid);
2593 } else {
2594 if (nvlist_add_string(props, "name", name) != 0)
2595 nomem();
2596 namelen = strlen(name);
2597 }
2598 nameidx = us_field_index("name");
2599 if (nameidx >= 0 && namelen > cb->cb_width[nameidx])
2600 cb->cb_width[nameidx] = namelen;
2601
2602 /*
2603 * Check if this type/name combination is in the list and update it;
2604 * otherwise add new node to the list.
2605 */
2606 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2607 uu_avl_insert(avl, node, idx);
2608 } else {
2609 nvlist_free(props);
2610 free(node);
2611 node = n;
2612 props = node->usn_nvl;
2613 }
2614
2615 /* Calculate/update width of USED/QUOTA fields */
2616 if (cb->cb_nicenum) {
2617 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED ||
2618 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA) {
2619 zfs_nicebytes(space, sizebuf, sizeof (sizebuf));
2620 } else {
2621 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2622 }
2623 } else {
2624 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
2625 (u_longlong_t)space);
2626 }
2627 sizelen = strlen(sizebuf);
2628 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2629 propname = "used";
2630 if (!nvlist_exists(props, "quota"))
2631 (void) nvlist_add_uint64(props, "quota", 0);
2632 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA) {
2633 propname = "quota";
2634 if (!nvlist_exists(props, "used"))
2635 (void) nvlist_add_uint64(props, "used", 0);
2636 } else if (prop == ZFS_PROP_USEROBJUSED ||
2637 prop == ZFS_PROP_GROUPOBJUSED) {
2638 propname = "objused";
2639 if (!nvlist_exists(props, "objquota"))
2640 (void) nvlist_add_uint64(props, "objquota", 0);
2641 } else if (prop == ZFS_PROP_USEROBJQUOTA ||
2642 prop == ZFS_PROP_GROUPOBJQUOTA) {
2643 propname = "objquota";
2644 if (!nvlist_exists(props, "objused"))
2645 (void) nvlist_add_uint64(props, "objused", 0);
2646 } else {
2647 return (-1);
2648 }
2649 sizeidx = us_field_index(propname);
2650 if (sizeidx >= 0 && sizelen > cb->cb_width[sizeidx])
2651 cb->cb_width[sizeidx] = sizelen;
2652
2653 if (nvlist_add_uint64(props, propname, space) != 0)
2654 nomem();
2655
2656 return (0);
2657 }
2658
2659 static void
2660 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2661 size_t *width, us_node_t *node)
2662 {
2663 nvlist_t *nvl = node->usn_nvl;
2664 char valstr[MAXNAMELEN];
2665 boolean_t first = B_TRUE;
2666 int cfield = 0;
2667 int field;
2668 uint32_t ustype;
2669
2670 /* Check type */
2671 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2672 if (!(ustype & types))
2673 return;
2674
2675 while ((field = fields[cfield]) != USFIELD_LAST) {
2676 nvpair_t *nvp = NULL;
2677 data_type_t type;
2678 uint32_t val32;
2679 uint64_t val64;
2680 char *strval = "-";
2681
2682 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2683 if (strcmp(nvpair_name(nvp),
2684 us_field_names[field]) == 0)
2685 break;
2686 }
2687
2688 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp);
2689 switch (type) {
2690 case DATA_TYPE_UINT32:
2691 (void) nvpair_value_uint32(nvp, &val32);
2692 break;
2693 case DATA_TYPE_UINT64:
2694 (void) nvpair_value_uint64(nvp, &val64);
2695 break;
2696 case DATA_TYPE_STRING:
2697 (void) nvpair_value_string(nvp, &strval);
2698 break;
2699 case DATA_TYPE_UNKNOWN:
2700 break;
2701 default:
2702 (void) fprintf(stderr, "invalid data type\n");
2703 }
2704
2705 switch (field) {
2706 case USFIELD_TYPE:
2707 if (type == DATA_TYPE_UINT32)
2708 strval = (char *)us_type2str(val32);
2709 break;
2710 case USFIELD_NAME:
2711 if (type == DATA_TYPE_UINT64) {
2712 (void) sprintf(valstr, "%llu",
2713 (u_longlong_t)val64);
2714 strval = valstr;
2715 }
2716 break;
2717 case USFIELD_USED:
2718 case USFIELD_QUOTA:
2719 if (type == DATA_TYPE_UINT64) {
2720 if (parsable) {
2721 (void) sprintf(valstr, "%llu",
2722 (u_longlong_t)val64);
2723 strval = valstr;
2724 } else if (field == USFIELD_QUOTA &&
2725 val64 == 0) {
2726 strval = "none";
2727 } else {
2728 zfs_nicebytes(val64, valstr,
2729 sizeof (valstr));
2730 strval = valstr;
2731 }
2732 }
2733 break;
2734 case USFIELD_OBJUSED:
2735 case USFIELD_OBJQUOTA:
2736 if (type == DATA_TYPE_UINT64) {
2737 if (parsable) {
2738 (void) sprintf(valstr, "%llu",
2739 (u_longlong_t)val64);
2740 strval = valstr;
2741 } else if (field == USFIELD_OBJQUOTA &&
2742 val64 == 0) {
2743 strval = "none";
2744 } else {
2745 zfs_nicenum(val64, valstr,
2746 sizeof (valstr));
2747 strval = valstr;
2748 }
2749 }
2750 break;
2751 }
2752
2753 if (!first) {
2754 if (scripted)
2755 (void) printf("\t");
2756 else
2757 (void) printf(" ");
2758 }
2759 if (scripted)
2760 (void) printf("%s", strval);
2761 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2762 (void) printf("%-*s", (int)width[field], strval);
2763 else
2764 (void) printf("%*s", (int)width[field], strval);
2765
2766 first = B_FALSE;
2767 cfield++;
2768 }
2769
2770 (void) printf("\n");
2771 }
2772
2773 static void
2774 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2775 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2776 {
2777 us_node_t *node;
2778 const char *col;
2779 int cfield = 0;
2780 int field;
2781
2782 if (!scripted) {
2783 boolean_t first = B_TRUE;
2784
2785 while ((field = fields[cfield]) != USFIELD_LAST) {
2786 col = gettext(us_field_hdr[field]);
2787 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2788 (void) printf(first ? "%-*s" : " %-*s",
2789 (int)width[field], col);
2790 } else {
2791 (void) printf(first ? "%*s" : " %*s",
2792 (int)width[field], col);
2793 }
2794 first = B_FALSE;
2795 cfield++;
2796 }
2797 (void) printf("\n");
2798 }
2799
2800 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2801 print_us_node(scripted, parsable, fields, types, width, node);
2802 if (rmnode)
2803 nvlist_free(node->usn_nvl);
2804 }
2805 }
2806
2807 static int
2808 zfs_do_userspace(int argc, char **argv)
2809 {
2810 zfs_handle_t *zhp;
2811 zfs_userquota_prop_t p;
2812 uu_avl_pool_t *avl_pool;
2813 uu_avl_t *avl_tree;
2814 uu_avl_walk_t *walk;
2815 char *delim;
2816 char deffields[] = "type,name,used,quota,objused,objquota";
2817 char *ofield = NULL;
2818 char *tfield = NULL;
2819 int cfield = 0;
2820 int fields[256];
2821 int i;
2822 boolean_t scripted = B_FALSE;
2823 boolean_t prtnum = B_FALSE;
2824 boolean_t parsable = B_FALSE;
2825 boolean_t sid2posix = B_FALSE;
2826 int ret = 0;
2827 int c;
2828 zfs_sort_column_t *sortcol = NULL;
2829 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2830 us_cbdata_t cb;
2831 us_node_t *node;
2832 us_node_t *rmnode;
2833 uu_list_pool_t *listpool;
2834 uu_list_t *list;
2835 uu_avl_index_t idx = 0;
2836 uu_list_index_t idx2 = 0;
2837
2838 if (argc < 2)
2839 usage(B_FALSE);
2840
2841 if (strcmp(argv[0], "groupspace") == 0)
2842 /* Toggle default group types */
2843 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2844
2845 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2846 switch (c) {
2847 case 'n':
2848 prtnum = B_TRUE;
2849 break;
2850 case 'H':
2851 scripted = B_TRUE;
2852 break;
2853 case 'p':
2854 parsable = B_TRUE;
2855 break;
2856 case 'o':
2857 ofield = optarg;
2858 break;
2859 case 's':
2860 case 'S':
2861 if (zfs_add_sort_column(&sortcol, optarg,
2862 c == 's' ? B_FALSE : B_TRUE) != 0) {
2863 (void) fprintf(stderr,
2864 gettext("invalid field '%s'\n"), optarg);
2865 usage(B_FALSE);
2866 }
2867 break;
2868 case 't':
2869 tfield = optarg;
2870 break;
2871 case 'i':
2872 sid2posix = B_TRUE;
2873 break;
2874 case ':':
2875 (void) fprintf(stderr, gettext("missing argument for "
2876 "'%c' option\n"), optopt);
2877 usage(B_FALSE);
2878 break;
2879 case '?':
2880 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2881 optopt);
2882 usage(B_FALSE);
2883 }
2884 }
2885
2886 argc -= optind;
2887 argv += optind;
2888
2889 if (argc < 1) {
2890 (void) fprintf(stderr, gettext("missing dataset name\n"));
2891 usage(B_FALSE);
2892 }
2893 if (argc > 1) {
2894 (void) fprintf(stderr, gettext("too many arguments\n"));
2895 usage(B_FALSE);
2896 }
2897
2898 /* Use default output fields if not specified using -o */
2899 if (ofield == NULL)
2900 ofield = deffields;
2901 do {
2902 if ((delim = strchr(ofield, ',')) != NULL)
2903 *delim = '\0';
2904 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2905 (void) fprintf(stderr, gettext("invalid type '%s' "
2906 "for -o option\n"), ofield);
2907 return (-1);
2908 }
2909 if (delim != NULL)
2910 ofield = delim + 1;
2911 } while (delim != NULL);
2912 fields[cfield] = USFIELD_LAST;
2913
2914 /* Override output types (-t option) */
2915 if (tfield != NULL) {
2916 types = 0;
2917
2918 do {
2919 boolean_t found = B_FALSE;
2920
2921 if ((delim = strchr(tfield, ',')) != NULL)
2922 *delim = '\0';
2923 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2924 i++) {
2925 if (strcmp(tfield, us_type_names[i]) == 0) {
2926 found = B_TRUE;
2927 types |= us_type_bits[i];
2928 break;
2929 }
2930 }
2931 if (!found) {
2932 (void) fprintf(stderr, gettext("invalid type "
2933 "'%s' for -t option\n"), tfield);
2934 return (-1);
2935 }
2936 if (delim != NULL)
2937 tfield = delim + 1;
2938 } while (delim != NULL);
2939 }
2940
2941 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2942 return (1);
2943
2944 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2945 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2946 nomem();
2947 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2948 nomem();
2949
2950 /* Always add default sorting columns */
2951 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2952 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2953
2954 cb.cb_sortcol = sortcol;
2955 cb.cb_numname = prtnum;
2956 cb.cb_nicenum = !parsable;
2957 cb.cb_avl_pool = avl_pool;
2958 cb.cb_avl = avl_tree;
2959 cb.cb_sid2posix = sid2posix;
2960
2961 for (i = 0; i < USFIELD_LAST; i++)
2962 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2963
2964 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2965 if ((zfs_prop_is_user(p) &&
2966 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2967 (zfs_prop_is_group(p) &&
2968 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2969 continue;
2970
2971 cb.cb_prop = p;
2972 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2973 return (ret);
2974 }
2975
2976 /* Sort the list */
2977 if ((node = uu_avl_first(avl_tree)) == NULL)
2978 return (0);
2979
2980 us_populated = B_TRUE;
2981
2982 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2983 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2984 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2985 uu_list_node_init(node, &node->usn_listnode, listpool);
2986
2987 while (node != NULL) {
2988 rmnode = node;
2989 node = uu_avl_next(avl_tree, node);
2990 uu_avl_remove(avl_tree, rmnode);
2991 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2992 uu_list_insert(list, rmnode, idx2);
2993 }
2994
2995 for (node = uu_list_first(list); node != NULL;
2996 node = uu_list_next(list, node)) {
2997 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2998
2999 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
3000 uu_avl_insert(avl_tree, node, idx);
3001 }
3002
3003 uu_list_destroy(list);
3004 uu_list_pool_destroy(listpool);
3005
3006 /* Print and free node nvlist memory */
3007 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
3008 cb.cb_avl);
3009
3010 zfs_free_sort_columns(sortcol);
3011
3012 /* Clean up the AVL tree */
3013 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
3014 nomem();
3015
3016 while ((node = uu_avl_walk_next(walk)) != NULL) {
3017 uu_avl_remove(cb.cb_avl, node);
3018 free(node);
3019 }
3020
3021 uu_avl_walk_end(walk);
3022 uu_avl_destroy(avl_tree);
3023 uu_avl_pool_destroy(avl_pool);
3024
3025 return (ret);
3026 }
3027
3028 /*
3029 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property]
3030 * [-t type[,...]] [filesystem|volume|snapshot] ...
3031 *
3032 * -H Scripted mode; elide headers and separate columns by tabs
3033 * -p Display values in parsable (literal) format.
3034 * -r Recurse over all children
3035 * -d Limit recursion by depth.
3036 * -o Control which fields to display.
3037 * -s Specify sort columns, descending order.
3038 * -S Specify sort columns, ascending order.
3039 * -t Control which object types to display.
3040 *
3041 * When given no arguments, list all filesystems in the system.
3042 * Otherwise, list the specified datasets, optionally recursing down them if
3043 * '-r' is specified.
3044 */
3045 typedef struct list_cbdata {
3046 boolean_t cb_first;
3047 boolean_t cb_literal;
3048 boolean_t cb_scripted;
3049 zprop_list_t *cb_proplist;
3050 } list_cbdata_t;
3051
3052 /*
3053 * Given a list of columns to display, output appropriate headers for each one.
3054 */
3055 static void
3056 print_header(list_cbdata_t *cb)
3057 {
3058 zprop_list_t *pl = cb->cb_proplist;
3059 char headerbuf[ZFS_MAXPROPLEN];
3060 const char *header;
3061 int i;
3062 boolean_t first = B_TRUE;
3063 boolean_t right_justify;
3064
3065 for (; pl != NULL; pl = pl->pl_next) {
3066 if (!first) {
3067 (void) printf(" ");
3068 } else {
3069 first = B_FALSE;
3070 }
3071
3072 right_justify = B_FALSE;
3073 if (pl->pl_prop != ZPROP_INVAL) {
3074 header = zfs_prop_column_name(pl->pl_prop);
3075 right_justify = zfs_prop_align_right(pl->pl_prop);
3076 } else {
3077 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
3078 headerbuf[i] = toupper(pl->pl_user_prop[i]);
3079 headerbuf[i] = '\0';
3080 header = headerbuf;
3081 }
3082
3083 if (pl->pl_next == NULL && !right_justify)
3084 (void) printf("%s", header);
3085 else if (right_justify)
3086 (void) printf("%*s", (int)pl->pl_width, header);
3087 else
3088 (void) printf("%-*s", (int)pl->pl_width, header);
3089 }
3090
3091 (void) printf("\n");
3092 }
3093
3094 /*
3095 * Given a dataset and a list of fields, print out all the properties according
3096 * to the described layout.
3097 */
3098 static void
3099 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
3100 {
3101 zprop_list_t *pl = cb->cb_proplist;
3102 boolean_t first = B_TRUE;
3103 char property[ZFS_MAXPROPLEN];
3104 nvlist_t *userprops = zfs_get_user_props(zhp);
3105 nvlist_t *propval;
3106 char *propstr;
3107 boolean_t right_justify;
3108
3109 for (; pl != NULL; pl = pl->pl_next) {
3110 if (!first) {
3111 if (cb->cb_scripted)
3112 (void) printf("\t");
3113 else
3114 (void) printf(" ");
3115 } else {
3116 first = B_FALSE;
3117 }
3118
3119 if (pl->pl_prop == ZFS_PROP_NAME) {
3120 (void) strlcpy(property, zfs_get_name(zhp),
3121 sizeof (property));
3122 propstr = property;
3123 right_justify = zfs_prop_align_right(pl->pl_prop);
3124 } else if (pl->pl_prop != ZPROP_INVAL) {
3125 if (zfs_prop_get(zhp, pl->pl_prop, property,
3126 sizeof (property), NULL, NULL, 0,
3127 cb->cb_literal) != 0)
3128 propstr = "-";
3129 else
3130 propstr = property;
3131 right_justify = zfs_prop_align_right(pl->pl_prop);
3132 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
3133 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
3134 property, sizeof (property), cb->cb_literal) != 0)
3135 propstr = "-";
3136 else
3137 propstr = property;
3138 right_justify = B_TRUE;
3139 } else if (zfs_prop_written(pl->pl_user_prop)) {
3140 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
3141 property, sizeof (property), cb->cb_literal) != 0)
3142 propstr = "-";
3143 else
3144 propstr = property;
3145 right_justify = B_TRUE;
3146 } else {
3147 if (nvlist_lookup_nvlist(userprops,
3148 pl->pl_user_prop, &propval) != 0)
3149 propstr = "-";
3150 else
3151 verify(nvlist_lookup_string(propval,
3152 ZPROP_VALUE, &propstr) == 0);
3153 right_justify = B_FALSE;
3154 }
3155
3156 /*
3157 * If this is being called in scripted mode, or if this is the
3158 * last column and it is left-justified, don't include a width
3159 * format specifier.
3160 */
3161 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3162 (void) printf("%s", propstr);
3163 else if (right_justify)
3164 (void) printf("%*s", (int)pl->pl_width, propstr);
3165 else
3166 (void) printf("%-*s", (int)pl->pl_width, propstr);
3167 }
3168
3169 (void) printf("\n");
3170 }
3171
3172 /*
3173 * Generic callback function to list a dataset or snapshot.
3174 */
3175 static int
3176 list_callback(zfs_handle_t *zhp, void *data)
3177 {
3178 list_cbdata_t *cbp = data;
3179
3180 if (cbp->cb_first) {
3181 if (!cbp->cb_scripted)
3182 print_header(cbp);
3183 cbp->cb_first = B_FALSE;
3184 }
3185
3186 print_dataset(zhp, cbp);
3187
3188 return (0);
3189 }
3190
3191 static int
3192 zfs_do_list(int argc, char **argv)
3193 {
3194 int c;
3195 static char default_fields[] =
3196 "name,used,available,referenced,mountpoint";
3197 int types = ZFS_TYPE_DATASET;
3198 boolean_t types_specified = B_FALSE;
3199 char *fields = NULL;
3200 list_cbdata_t cb = { 0 };
3201 char *value;
3202 int limit = 0;
3203 int ret = 0;
3204 zfs_sort_column_t *sortcol = NULL;
3205 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3206
3207 /* check options */
3208 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3209 switch (c) {
3210 case 'o':
3211 fields = optarg;
3212 break;
3213 case 'p':
3214 cb.cb_literal = B_TRUE;
3215 flags |= ZFS_ITER_LITERAL_PROPS;
3216 break;
3217 case 'd':
3218 limit = parse_depth(optarg, &flags);
3219 break;
3220 case 'r':
3221 flags |= ZFS_ITER_RECURSE;
3222 break;
3223 case 'H':
3224 cb.cb_scripted = B_TRUE;
3225 break;
3226 case 's':
3227 if (zfs_add_sort_column(&sortcol, optarg,
3228 B_FALSE) != 0) {
3229 (void) fprintf(stderr,
3230 gettext("invalid property '%s'\n"), optarg);
3231 usage(B_FALSE);
3232 }
3233 break;
3234 case 'S':
3235 if (zfs_add_sort_column(&sortcol, optarg,
3236 B_TRUE) != 0) {
3237 (void) fprintf(stderr,
3238 gettext("invalid property '%s'\n"), optarg);
3239 usage(B_FALSE);
3240 }
3241 break;
3242 case 't':
3243 types = 0;
3244 types_specified = B_TRUE;
3245 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3246 while (*optarg != '\0') {
3247 static char *type_subopts[] = { "filesystem",
3248 "volume", "snapshot", "snap", "bookmark",
3249 "all", NULL };
3250
3251 switch (getsubopt(&optarg, type_subopts,
3252 &value)) {
3253 case 0:
3254 types |= ZFS_TYPE_FILESYSTEM;
3255 break;
3256 case 1:
3257 types |= ZFS_TYPE_VOLUME;
3258 break;
3259 case 2:
3260 case 3:
3261 types |= ZFS_TYPE_SNAPSHOT;
3262 break;
3263 case 4:
3264 types |= ZFS_TYPE_BOOKMARK;
3265 break;
3266 case 5:
3267 types = ZFS_TYPE_DATASET |
3268 ZFS_TYPE_BOOKMARK;
3269 break;
3270 default:
3271 (void) fprintf(stderr,
3272 gettext("invalid type '%s'\n"),
3273 value);
3274 usage(B_FALSE);
3275 }
3276 }
3277 break;
3278 case ':':
3279 (void) fprintf(stderr, gettext("missing argument for "
3280 "'%c' option\n"), optopt);
3281 usage(B_FALSE);
3282 break;
3283 case '?':
3284 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3285 optopt);
3286 usage(B_FALSE);
3287 }
3288 }
3289
3290 argc -= optind;
3291 argv += optind;
3292
3293 if (fields == NULL)
3294 fields = default_fields;
3295
3296 /*
3297 * If we are only going to list snapshot names and sort by name,
3298 * then we can use faster version.
3299 */
3300 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3301 flags |= ZFS_ITER_SIMPLE;
3302
3303 /*
3304 * If "-o space" and no types were specified, don't display snapshots.
3305 */
3306 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3307 types &= ~ZFS_TYPE_SNAPSHOT;
3308
3309 /*
3310 * If the user specifies '-o all', the zprop_get_list() doesn't
3311 * normally include the name of the dataset. For 'zfs list', we always
3312 * want this property to be first.
3313 */
3314 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3315 != 0)
3316 usage(B_FALSE);
3317
3318 cb.cb_first = B_TRUE;
3319
3320 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3321 limit, list_callback, &cb);
3322
3323 zprop_free_list(cb.cb_proplist);
3324 zfs_free_sort_columns(sortcol);
3325
3326 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3327 (void) fprintf(stderr, gettext("no datasets available\n"));
3328
3329 return (ret);
3330 }
3331
3332 /*
3333 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3334 * zfs rename [-f] -p <fs | vol> <fs | vol>
3335 * zfs rename -r <snap> <snap>
3336 *
3337 * Renames the given dataset to another of the same type.
3338 *
3339 * The '-p' flag creates all the non-existing ancestors of the target first.
3340 */
3341 /* ARGSUSED */
3342 static int
3343 zfs_do_rename(int argc, char **argv)
3344 {
3345 zfs_handle_t *zhp;
3346 int c;
3347 int ret = 0;
3348 boolean_t recurse = B_FALSE;
3349 boolean_t parents = B_FALSE;
3350 boolean_t force_unmount = B_FALSE;
3351
3352 /* check options */
3353 while ((c = getopt(argc, argv, "prf")) != -1) {
3354 switch (c) {
3355 case 'p':
3356 parents = B_TRUE;
3357 break;
3358 case 'r':
3359 recurse = B_TRUE;
3360 break;
3361 case 'f':
3362 force_unmount = B_TRUE;
3363 break;
3364 case '?':
3365 default:
3366 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3367 optopt);
3368 usage(B_FALSE);
3369 }
3370 }
3371
3372 argc -= optind;
3373 argv += optind;
3374
3375 /* check number of arguments */
3376 if (argc < 1) {
3377 (void) fprintf(stderr, gettext("missing source dataset "
3378 "argument\n"));
3379 usage(B_FALSE);
3380 }
3381 if (argc < 2) {
3382 (void) fprintf(stderr, gettext("missing target dataset "
3383 "argument\n"));
3384 usage(B_FALSE);
3385 }
3386 if (argc > 2) {
3387 (void) fprintf(stderr, gettext("too many arguments\n"));
3388 usage(B_FALSE);
3389 }
3390
3391 if (recurse && parents) {
3392 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3393 "exclusive\n"));
3394 usage(B_FALSE);
3395 }
3396
3397 if (recurse && strchr(argv[0], '@') == 0) {
3398 (void) fprintf(stderr, gettext("source dataset for recursive "
3399 "rename must be a snapshot\n"));
3400 usage(B_FALSE);
3401 }
3402
3403 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3404 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3405 return (1);
3406
3407 /* If we were asked and the name looks good, try to create ancestors. */
3408 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3409 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3410 zfs_close(zhp);
3411 return (1);
3412 }
3413
3414 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3415
3416 zfs_close(zhp);
3417 return (ret);
3418 }
3419
3420 /*
3421 * zfs promote <fs>
3422 *
3423 * Promotes the given clone fs to be the parent
3424 */
3425 /* ARGSUSED */
3426 static int
3427 zfs_do_promote(int argc, char **argv)
3428 {
3429 zfs_handle_t *zhp;
3430 int ret = 0;
3431
3432 /* check options */
3433 if (argc > 1 && argv[1][0] == '-') {
3434 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3435 argv[1][1]);
3436 usage(B_FALSE);
3437 }
3438
3439 /* check number of arguments */
3440 if (argc < 2) {
3441 (void) fprintf(stderr, gettext("missing clone filesystem"
3442 " argument\n"));
3443 usage(B_FALSE);
3444 }
3445 if (argc > 2) {
3446 (void) fprintf(stderr, gettext("too many arguments\n"));
3447 usage(B_FALSE);
3448 }
3449
3450 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3451 if (zhp == NULL)
3452 return (1);
3453
3454 ret = (zfs_promote(zhp) != 0);
3455
3456
3457 zfs_close(zhp);
3458 return (ret);
3459 }
3460
3461 /*
3462 * zfs rollback [-rRf] <snapshot>
3463 *
3464 * -r Delete any intervening snapshots before doing rollback
3465 * -R Delete any snapshots and their clones
3466 * -f ignored for backwards compatibility
3467 *
3468 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3469 * since then and making it the active dataset. If more recent snapshots exist,
3470 * the command will complain unless the '-r' flag is given.
3471 */
3472 typedef struct rollback_cbdata {
3473 uint64_t cb_create;
3474 boolean_t cb_first;
3475 int cb_doclones;
3476 char *cb_target;
3477 int cb_error;
3478 boolean_t cb_recurse;
3479 } rollback_cbdata_t;
3480
3481 static int
3482 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3483 {
3484 rollback_cbdata_t *cbp = data;
3485
3486 if (cbp->cb_first && cbp->cb_recurse) {
3487 (void) fprintf(stderr, gettext("cannot rollback to "
3488 "'%s': clones of previous snapshots exist\n"),
3489 cbp->cb_target);
3490 (void) fprintf(stderr, gettext("use '-R' to "
3491 "force deletion of the following clones and "
3492 "dependents:\n"));
3493 cbp->cb_first = 0;
3494 cbp->cb_error = 1;
3495 }
3496
3497 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3498
3499 zfs_close(zhp);
3500 return (0);
3501 }
3502
3503
3504 /*
3505 * Report any snapshots more recent than the one specified. Used when '-r' is
3506 * not specified. We reuse this same callback for the snapshot dependents - if
3507 * 'cb_dependent' is set, then this is a dependent and we should report it
3508 * without checking the transaction group.
3509 */
3510 static int
3511 rollback_check(zfs_handle_t *zhp, void *data)
3512 {
3513 rollback_cbdata_t *cbp = data;
3514
3515 if (cbp->cb_doclones) {
3516 zfs_close(zhp);
3517 return (0);
3518 }
3519
3520 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3521 if (cbp->cb_first && !cbp->cb_recurse) {
3522 (void) fprintf(stderr, gettext("cannot "
3523 "rollback to '%s': more recent snapshots "
3524 "or bookmarks exist\n"),
3525 cbp->cb_target);
3526 (void) fprintf(stderr, gettext("use '-r' to "
3527 "force deletion of the following "
3528 "snapshots and bookmarks:\n"));
3529 cbp->cb_first = 0;
3530 cbp->cb_error = 1;
3531 }
3532
3533 if (cbp->cb_recurse) {
3534 if (zfs_iter_dependents(zhp, B_TRUE,
3535 rollback_check_dependent, cbp) != 0) {
3536 zfs_close(zhp);
3537 return (-1);
3538 }
3539 } else {
3540 (void) fprintf(stderr, "%s\n",
3541 zfs_get_name(zhp));
3542 }
3543 }
3544 zfs_close(zhp);
3545 return (0);
3546 }
3547
3548 static int
3549 zfs_do_rollback(int argc, char **argv)
3550 {
3551 int ret = 0;
3552 int c;
3553 boolean_t force = B_FALSE;
3554 rollback_cbdata_t cb = { 0 };
3555 zfs_handle_t *zhp, *snap;
3556 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3557 char *delim;
3558
3559 /* check options */
3560 while ((c = getopt(argc, argv, "rRf")) != -1) {
3561 switch (c) {
3562 case 'r':
3563 cb.cb_recurse = 1;
3564 break;
3565 case 'R':
3566 cb.cb_recurse = 1;
3567 cb.cb_doclones = 1;
3568 break;
3569 case 'f':
3570 force = B_TRUE;
3571 break;
3572 case '?':
3573 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3574 optopt);
3575 usage(B_FALSE);
3576 }
3577 }
3578
3579 argc -= optind;
3580 argv += optind;
3581
3582 /* check number of arguments */
3583 if (argc < 1) {
3584 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3585 usage(B_FALSE);
3586 }
3587 if (argc > 1) {
3588 (void) fprintf(stderr, gettext("too many arguments\n"));
3589 usage(B_FALSE);
3590 }
3591
3592 /* open the snapshot */
3593 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3594 return (1);
3595
3596 /* open the parent dataset */
3597 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3598 verify((delim = strrchr(parentname, '@')) != NULL);
3599 *delim = '\0';
3600 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3601 zfs_close(snap);
3602 return (1);
3603 }
3604
3605 /*
3606 * Check for more recent snapshots and/or clones based on the presence
3607 * of '-r' and '-R'.
3608 */
3609 cb.cb_target = argv[0];
3610 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3611 cb.cb_first = B_TRUE;
3612 cb.cb_error = 0;
3613 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3614 goto out;
3615 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3616 goto out;
3617
3618 if ((ret = cb.cb_error) != 0)
3619 goto out;
3620
3621 /*
3622 * Rollback parent to the given snapshot.
3623 */
3624 ret = zfs_rollback(zhp, snap, force);
3625
3626 out:
3627 zfs_close(snap);
3628 zfs_close(zhp);
3629
3630 if (ret == 0)
3631 return (0);
3632 else
3633 return (1);
3634 }
3635
3636 /*
3637 * zfs set property=value ... { fs | snap | vol } ...
3638 *
3639 * Sets the given properties for all datasets specified on the command line.
3640 */
3641
3642 static int
3643 set_callback(zfs_handle_t *zhp, void *data)
3644 {
3645 nvlist_t *props = data;
3646
3647 if (zfs_prop_set_list(zhp, props) != 0) {
3648 switch (libzfs_errno(g_zfs)) {
3649 case EZFS_MOUNTFAILED:
3650 (void) fprintf(stderr, gettext("property may be set "
3651 "but unable to remount filesystem\n"));
3652 break;
3653 case EZFS_SHARENFSFAILED:
3654 (void) fprintf(stderr, gettext("property may be set "
3655 "but unable to reshare filesystem\n"));
3656 break;
3657 }
3658 return (1);
3659 }
3660 return (0);
3661 }
3662
3663 static int
3664 zfs_do_set(int argc, char **argv)
3665 {
3666 nvlist_t *props = NULL;
3667 int ds_start = -1; /* argv idx of first dataset arg */
3668 int ret = 0;
3669 int i;
3670
3671 /* check for options */
3672 if (argc > 1 && argv[1][0] == '-') {
3673 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3674 argv[1][1]);
3675 usage(B_FALSE);
3676 }
3677
3678 /* check number of arguments */
3679 if (argc < 2) {
3680 (void) fprintf(stderr, gettext("missing arguments\n"));
3681 usage(B_FALSE);
3682 }
3683 if (argc < 3) {
3684 if (strchr(argv[1], '=') == NULL) {
3685 (void) fprintf(stderr, gettext("missing property=value "
3686 "argument(s)\n"));
3687 } else {
3688 (void) fprintf(stderr, gettext("missing dataset "
3689 "name(s)\n"));
3690 }
3691 usage(B_FALSE);
3692 }
3693
3694 /* validate argument order: prop=val args followed by dataset args */
3695 for (i = 1; i < argc; i++) {
3696 if (strchr(argv[i], '=') != NULL) {
3697 if (ds_start > 0) {
3698 /* out-of-order prop=val argument */
3699 (void) fprintf(stderr, gettext("invalid "
3700 "argument order\n"));
3701 usage(B_FALSE);
3702 }
3703 } else if (ds_start < 0) {
3704 ds_start = i;
3705 }
3706 }
3707 if (ds_start < 0) {
3708 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3709 usage(B_FALSE);
3710 }
3711
3712 /* Populate a list of property settings */
3713 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3714 nomem();
3715 for (i = 1; i < ds_start; i++) {
3716 if (!parseprop(props, argv[i])) {
3717 ret = -1;
3718 goto error;
3719 }
3720 }
3721
3722 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3723 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3724
3725 error:
3726 nvlist_free(props);
3727 return (ret);
3728 }
3729
3730 typedef struct snap_cbdata {
3731 nvlist_t *sd_nvl;
3732 boolean_t sd_recursive;
3733 const char *sd_snapname;
3734 } snap_cbdata_t;
3735
3736 static int
3737 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3738 {
3739 snap_cbdata_t *sd = arg;
3740 char *name;
3741 int rv = 0;
3742 int error;
3743
3744 if (sd->sd_recursive &&
3745 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3746 zfs_close(zhp);
3747 return (0);
3748 }
3749
3750 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3751 if (error == -1)
3752 nomem();
3753 fnvlist_add_boolean(sd->sd_nvl, name);
3754 free(name);
3755
3756 if (sd->sd_recursive)
3757 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3758 zfs_close(zhp);
3759 return (rv);
3760 }
3761
3762 /*
3763 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3764 *
3765 * Creates a snapshot with the given name. While functionally equivalent to
3766 * 'zfs create', it is a separate command to differentiate intent.
3767 */
3768 static int
3769 zfs_do_snapshot(int argc, char **argv)
3770 {
3771 int ret = 0;
3772 signed char c;
3773 nvlist_t *props;
3774 snap_cbdata_t sd = { 0 };
3775 boolean_t multiple_snaps = B_FALSE;
3776
3777 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3778 nomem();
3779 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3780 nomem();
3781
3782 /* check options */
3783 while ((c = getopt(argc, argv, "ro:")) != -1) {
3784 switch (c) {
3785 case 'o':
3786 if (!parseprop(props, optarg)) {
3787 nvlist_free(sd.sd_nvl);
3788 nvlist_free(props);
3789 return (1);
3790 }
3791 break;
3792 case 'r':
3793 sd.sd_recursive = B_TRUE;
3794 multiple_snaps = B_TRUE;
3795 break;
3796 case '?':
3797 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3798 optopt);
3799 goto usage;
3800 }
3801 }
3802
3803 argc -= optind;
3804 argv += optind;
3805
3806 /* check number of arguments */
3807 if (argc < 1) {
3808 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3809 goto usage;
3810 }
3811
3812 if (argc > 1)
3813 multiple_snaps = B_TRUE;
3814 for (; argc > 0; argc--, argv++) {
3815 char *atp;
3816 zfs_handle_t *zhp;
3817
3818 atp = strchr(argv[0], '@');
3819 if (atp == NULL)
3820 goto usage;
3821 *atp = '\0';
3822 sd.sd_snapname = atp + 1;
3823 zhp = zfs_open(g_zfs, argv[0],
3824 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3825 if (zhp == NULL)
3826 goto usage;
3827 if (zfs_snapshot_cb(zhp, &sd) != 0)
3828 goto usage;
3829 }
3830
3831 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3832 nvlist_free(sd.sd_nvl);
3833 nvlist_free(props);
3834 if (ret != 0 && multiple_snaps)
3835 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3836 return (ret != 0);
3837
3838 usage:
3839 nvlist_free(sd.sd_nvl);
3840 nvlist_free(props);
3841 usage(B_FALSE);
3842 return (-1);
3843 }
3844
3845 /*
3846 * Send a backup stream to stdout.
3847 */
3848 static int
3849 zfs_do_send(int argc, char **argv)
3850 {
3851 char *fromname = NULL;
3852 char *toname = NULL;
3853 char *resume_token = NULL;
3854 char *cp;
3855 zfs_handle_t *zhp;
3856 sendflags_t flags = { 0 };
3857 int c, err;
3858 nvlist_t *dbgnv = NULL;
3859 boolean_t extraverbose = B_FALSE;
3860
3861 struct option long_options[] = {
3862 {"replicate", no_argument, NULL, 'R'},
3863 {"props", no_argument, NULL, 'p'},
3864 {"parsable", no_argument, NULL, 'P'},
3865 {"dedup", no_argument, NULL, 'D'},
3866 {"verbose", no_argument, NULL, 'v'},
3867 {"dryrun", no_argument, NULL, 'n'},
3868 {"large-block", no_argument, NULL, 'L'},
3869 {"embed", no_argument, NULL, 'e'},
3870 {"resume", required_argument, NULL, 't'},
3871 {"compressed", no_argument, NULL, 'c'},
3872 {"raw", no_argument, NULL, 'w'},
3873 {0, 0, 0, 0}
3874 };
3875
3876 /* check options */
3877 while ((c = getopt_long(argc, argv, ":i:I:RDpvnPLet:cw", long_options,
3878 NULL)) != -1) {
3879 switch (c) {
3880 case 'i':
3881 if (fromname)
3882 usage(B_FALSE);
3883 fromname = optarg;
3884 break;
3885 case 'I':
3886 if (fromname)
3887 usage(B_FALSE);
3888 fromname = optarg;
3889 flags.doall = B_TRUE;
3890 break;
3891 case 'R':
3892 flags.replicate = B_TRUE;
3893 break;
3894 case 'p':
3895 flags.props = B_TRUE;
3896 break;
3897 case 'P':
3898 flags.parsable = B_TRUE;
3899 flags.verbose = B_TRUE;
3900 break;
3901 case 'v':
3902 if (flags.verbose)
3903 extraverbose = B_TRUE;
3904 flags.verbose = B_TRUE;
3905 flags.progress = B_TRUE;
3906 break;
3907 case 'D':
3908 flags.dedup = B_TRUE;
3909 break;
3910 case 'n':
3911 flags.dryrun = B_TRUE;
3912 break;
3913 case 'L':
3914 flags.largeblock = B_TRUE;
3915 break;
3916 case 'e':
3917 flags.embed_data = B_TRUE;
3918 break;
3919 case 't':
3920 resume_token = optarg;
3921 break;
3922 case 'c':
3923 flags.compress = B_TRUE;
3924 break;
3925 case 'w':
3926 flags.raw = B_TRUE;
3927 flags.compress = B_TRUE;
3928 flags.embed_data = B_TRUE;
3929 flags.largeblock = B_TRUE;
3930 break;
3931 case ':':
3932 /*
3933 * If a parameter was not passed, optopt contains the
3934 * value that would normally lead us into the
3935 * appropriate case statement. If it's > 256, then this
3936 * must be a longopt and we should look at argv to get
3937 * the string. Otherwise it's just the character, so we
3938 * should use it directly.
3939 */
3940 if (optopt <= UINT8_MAX) {
3941 (void) fprintf(stderr,
3942 gettext("missing argument for '%c' "
3943 "option\n"), optopt);
3944 } else {
3945 (void) fprintf(stderr,
3946 gettext("missing argument for '%s' "
3947 "option\n"), argv[optind - 1]);
3948 }
3949 usage(B_FALSE);
3950 break;
3951 case '?':
3952 /*FALLTHROUGH*/
3953 default:
3954 /*
3955 * If an invalid flag was passed, optopt contains the
3956 * character if it was a short flag, or 0 if it was a
3957 * longopt.
3958 */
3959 if (optopt != 0) {
3960 (void) fprintf(stderr,
3961 gettext("invalid option '%c'\n"), optopt);
3962 } else {
3963 (void) fprintf(stderr,
3964 gettext("invalid option '%s'\n"),
3965 argv[optind - 1]);
3966
3967 }
3968 usage(B_FALSE);
3969 }
3970 }
3971
3972 argc -= optind;
3973 argv += optind;
3974
3975 if (resume_token != NULL) {
3976 if (fromname != NULL || flags.replicate || flags.props ||
3977 flags.dedup) {
3978 (void) fprintf(stderr,
3979 gettext("invalid flags combined with -t\n"));
3980 usage(B_FALSE);
3981 }
3982 if (argc != 0) {
3983 (void) fprintf(stderr, gettext("no additional "
3984 "arguments are permitted with -t\n"));
3985 usage(B_FALSE);
3986 }
3987 } else {
3988 if (argc < 1) {
3989 (void) fprintf(stderr,
3990 gettext("missing snapshot argument\n"));
3991 usage(B_FALSE);
3992 }
3993 if (argc > 1) {
3994 (void) fprintf(stderr, gettext("too many arguments\n"));
3995 usage(B_FALSE);
3996 }
3997 }
3998
3999 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
4000 (void) fprintf(stderr,
4001 gettext("Error: Stream can not be written to a terminal.\n"
4002 "You must redirect standard output.\n"));
4003 return (1);
4004 }
4005
4006 if (resume_token != NULL) {
4007 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
4008 resume_token));
4009 }
4010
4011 /*
4012 * Special case sending a filesystem, or from a bookmark.
4013 */
4014 if (strchr(argv[0], '@') == NULL ||
4015 (fromname && strchr(fromname, '#') != NULL)) {
4016 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
4017
4018 if (flags.replicate || flags.doall || flags.props ||
4019 flags.dedup || (strchr(argv[0], '@') == NULL &&
4020 (flags.dryrun || flags.verbose || flags.progress))) {
4021 (void) fprintf(stderr, gettext("Error: "
4022 "Unsupported flag with filesystem or bookmark.\n"));
4023 return (1);
4024 }
4025
4026 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
4027 if (zhp == NULL)
4028 return (1);
4029
4030 if (fromname != NULL &&
4031 (fromname[0] == '#' || fromname[0] == '@')) {
4032 /*
4033 * Incremental source name begins with # or @.
4034 * Default to same fs as target.
4035 */
4036 (void) strlcpy(frombuf, argv[0], sizeof (frombuf));
4037 cp = strchr(frombuf, '@');
4038 if (cp != NULL)
4039 *cp = '\0';
4040 (void) strlcat(frombuf, fromname, sizeof (frombuf));
4041 fromname = frombuf;
4042 }
4043 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, flags);
4044 zfs_close(zhp);
4045 return (err != 0);
4046 }
4047
4048 cp = strchr(argv[0], '@');
4049 *cp = '\0';
4050 toname = cp + 1;
4051 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4052 if (zhp == NULL)
4053 return (1);
4054
4055 /*
4056 * If they specified the full path to the snapshot, chop off
4057 * everything except the short name of the snapshot, but special
4058 * case if they specify the origin.
4059 */
4060 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
4061 char origin[ZFS_MAX_DATASET_NAME_LEN];
4062 zprop_source_t src;
4063
4064 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
4065 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
4066
4067 if (strcmp(origin, fromname) == 0) {
4068 fromname = NULL;
4069 flags.fromorigin = B_TRUE;
4070 } else {
4071 *cp = '\0';
4072 if (cp != fromname && strcmp(argv[0], fromname)) {
4073 (void) fprintf(stderr,
4074 gettext("incremental source must be "
4075 "in same filesystem\n"));
4076 usage(B_FALSE);
4077 }
4078 fromname = cp + 1;
4079 if (strchr(fromname, '@') || strchr(fromname, '/')) {
4080 (void) fprintf(stderr,
4081 gettext("invalid incremental source\n"));
4082 usage(B_FALSE);
4083 }
4084 }
4085 }
4086
4087 if (flags.replicate && fromname == NULL)
4088 flags.doall = B_TRUE;
4089
4090 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
4091 extraverbose ? &dbgnv : NULL);
4092
4093 if (extraverbose && dbgnv != NULL) {
4094 /*
4095 * dump_nvlist prints to stdout, but that's been
4096 * redirected to a file. Make it print to stderr
4097 * instead.
4098 */
4099 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
4100 dump_nvlist(dbgnv, 0);
4101 nvlist_free(dbgnv);
4102 }
4103 zfs_close(zhp);
4104
4105 return (err != 0);
4106 }
4107
4108 /*
4109 * Restore a backup stream from stdin.
4110 */
4111 static int
4112 zfs_do_receive(int argc, char **argv)
4113 {
4114 int c, err = 0;
4115 recvflags_t flags = { 0 };
4116 boolean_t abort_resumable = B_FALSE;
4117 nvlist_t *props;
4118
4119 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
4120 nomem();
4121
4122 /* check options */
4123 while ((c = getopt(argc, argv, ":o:x:denuvFsA")) != -1) {
4124 switch (c) {
4125 case 'o':
4126 if (!parseprop(props, optarg)) {
4127 nvlist_free(props);
4128 usage(B_FALSE);
4129 }
4130 break;
4131 case 'x':
4132 if (!parsepropname(props, optarg)) {
4133 nvlist_free(props);
4134 usage(B_FALSE);
4135 }
4136 break;
4137 case 'd':
4138 flags.isprefix = B_TRUE;
4139 break;
4140 case 'e':
4141 flags.isprefix = B_TRUE;
4142 flags.istail = B_TRUE;
4143 break;
4144 case 'n':
4145 flags.dryrun = B_TRUE;
4146 break;
4147 case 'u':
4148 flags.nomount = B_TRUE;
4149 break;
4150 case 'v':
4151 flags.verbose = B_TRUE;
4152 break;
4153 case 's':
4154 flags.resumable = B_TRUE;
4155 break;
4156 case 'F':
4157 flags.force = B_TRUE;
4158 break;
4159 case 'A':
4160 abort_resumable = B_TRUE;
4161 break;
4162 case ':':
4163 (void) fprintf(stderr, gettext("missing argument for "
4164 "'%c' option\n"), optopt);
4165 usage(B_FALSE);
4166 break;
4167 case '?':
4168 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4169 optopt);
4170 usage(B_FALSE);
4171 }
4172 }
4173
4174 argc -= optind;
4175 argv += optind;
4176
4177 /* check number of arguments */
4178 if (argc < 1) {
4179 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4180 usage(B_FALSE);
4181 }
4182 if (argc > 1) {
4183 (void) fprintf(stderr, gettext("too many arguments\n"));
4184 usage(B_FALSE);
4185 }
4186
4187 if (abort_resumable) {
4188 if (flags.isprefix || flags.istail || flags.dryrun ||
4189 flags.resumable || flags.nomount) {
4190 (void) fprintf(stderr, gettext("invalid option\n"));
4191 usage(B_FALSE);
4192 }
4193
4194 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4195 (void) snprintf(namebuf, sizeof (namebuf),
4196 "%s/%%recv", argv[0]);
4197
4198 if (zfs_dataset_exists(g_zfs, namebuf,
4199 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4200 zfs_handle_t *zhp = zfs_open(g_zfs,
4201 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4202 if (zhp == NULL) {
4203 nvlist_free(props);
4204 return (1);
4205 }
4206 err = zfs_destroy(zhp, B_FALSE);
4207 zfs_close(zhp);
4208 } else {
4209 zfs_handle_t *zhp = zfs_open(g_zfs,
4210 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4211 if (zhp == NULL)
4212 usage(B_FALSE);
4213 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4214 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4215 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4216 (void) fprintf(stderr,
4217 gettext("'%s' does not have any "
4218 "resumable receive state to abort\n"),
4219 argv[0]);
4220 nvlist_free(props);
4221 zfs_close(zhp);
4222 return (1);
4223 }
4224 err = zfs_destroy(zhp, B_FALSE);
4225 zfs_close(zhp);
4226 }
4227 nvlist_free(props);
4228 return (err != 0);
4229 }
4230
4231 if (isatty(STDIN_FILENO)) {
4232 (void) fprintf(stderr,
4233 gettext("Error: Backup stream can not be read "
4234 "from a terminal.\n"
4235 "You must redirect standard input.\n"));
4236 nvlist_free(props);
4237 return (1);
4238 }
4239 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4240 nvlist_free(props);
4241
4242 return (err != 0);
4243 }
4244
4245 /*
4246 * allow/unallow stuff
4247 */
4248 /* copied from zfs/sys/dsl_deleg.h */
4249 #define ZFS_DELEG_PERM_CREATE "create"
4250 #define ZFS_DELEG_PERM_DESTROY "destroy"
4251 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4252 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4253 #define ZFS_DELEG_PERM_CLONE "clone"
4254 #define ZFS_DELEG_PERM_PROMOTE "promote"
4255 #define ZFS_DELEG_PERM_RENAME "rename"
4256 #define ZFS_DELEG_PERM_MOUNT "mount"
4257 #define ZFS_DELEG_PERM_SHARE "share"
4258 #define ZFS_DELEG_PERM_SEND "send"
4259 #define ZFS_DELEG_PERM_RECEIVE "receive"
4260 #define ZFS_DELEG_PERM_ALLOW "allow"
4261 #define ZFS_DELEG_PERM_USERPROP "userprop"
4262 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4263 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4264 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4265 #define ZFS_DELEG_PERM_USERUSED "userused"
4266 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4267 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota"
4268 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota"
4269 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused"
4270 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused"
4271
4272 #define ZFS_DELEG_PERM_HOLD "hold"
4273 #define ZFS_DELEG_PERM_RELEASE "release"
4274 #define ZFS_DELEG_PERM_DIFF "diff"
4275 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4276 #define ZFS_DELEG_PERM_LOAD_KEY "load-key"
4277 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key"
4278
4279 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4280
4281 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4282 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4283 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4284 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4285 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4286 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4287 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4288 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4289 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4290 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4291 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4292 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4293 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4294 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4295 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4296 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4297 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4298 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY },
4299 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY },
4300
4301 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4302 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4303 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4304 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4305 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4306 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA },
4307 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED },
4308 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA },
4309 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED },
4310 { NULL, ZFS_DELEG_NOTE_NONE }
4311 };
4312
4313 /* permission structure */
4314 typedef struct deleg_perm {
4315 zfs_deleg_who_type_t dp_who_type;
4316 const char *dp_name;
4317 boolean_t dp_local;
4318 boolean_t dp_descend;
4319 } deleg_perm_t;
4320
4321 /* */
4322 typedef struct deleg_perm_node {
4323 deleg_perm_t dpn_perm;
4324
4325 uu_avl_node_t dpn_avl_node;
4326 } deleg_perm_node_t;
4327
4328 typedef struct fs_perm fs_perm_t;
4329
4330 /* permissions set */
4331 typedef struct who_perm {
4332 zfs_deleg_who_type_t who_type;
4333 const char *who_name; /* id */
4334 char who_ug_name[256]; /* user/group name */
4335 fs_perm_t *who_fsperm; /* uplink */
4336
4337 uu_avl_t *who_deleg_perm_avl; /* permissions */
4338 } who_perm_t;
4339
4340 /* */
4341 typedef struct who_perm_node {
4342 who_perm_t who_perm;
4343 uu_avl_node_t who_avl_node;
4344 } who_perm_node_t;
4345
4346 typedef struct fs_perm_set fs_perm_set_t;
4347 /* fs permissions */
4348 struct fs_perm {
4349 const char *fsp_name;
4350
4351 uu_avl_t *fsp_sc_avl; /* sets,create */
4352 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4353
4354 fs_perm_set_t *fsp_set; /* uplink */
4355 };
4356
4357 /* */
4358 typedef struct fs_perm_node {
4359 fs_perm_t fspn_fsperm;
4360 uu_avl_t *fspn_avl;
4361
4362 uu_list_node_t fspn_list_node;
4363 } fs_perm_node_t;
4364
4365 /* top level structure */
4366 struct fs_perm_set {
4367 uu_list_pool_t *fsps_list_pool;
4368 uu_list_t *fsps_list; /* list of fs_perms */
4369
4370 uu_avl_pool_t *fsps_named_set_avl_pool;
4371 uu_avl_pool_t *fsps_who_perm_avl_pool;
4372 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4373 };
4374
4375 static inline const char *
4376 deleg_perm_type(zfs_deleg_note_t note)
4377 {
4378 /* subcommands */
4379 switch (note) {
4380 /* SUBCOMMANDS */
4381 /* OTHER */
4382 case ZFS_DELEG_NOTE_GROUPQUOTA:
4383 case ZFS_DELEG_NOTE_GROUPUSED:
4384 case ZFS_DELEG_NOTE_USERPROP:
4385 case ZFS_DELEG_NOTE_USERQUOTA:
4386 case ZFS_DELEG_NOTE_USERUSED:
4387 case ZFS_DELEG_NOTE_USEROBJQUOTA:
4388 case ZFS_DELEG_NOTE_USEROBJUSED:
4389 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
4390 case ZFS_DELEG_NOTE_GROUPOBJUSED:
4391 /* other */
4392 return (gettext("other"));
4393 default:
4394 return (gettext("subcommand"));
4395 }
4396 }
4397
4398 static int
4399 who_type2weight(zfs_deleg_who_type_t who_type)
4400 {
4401 int res;
4402 switch (who_type) {
4403 case ZFS_DELEG_NAMED_SET_SETS:
4404 case ZFS_DELEG_NAMED_SET:
4405 res = 0;
4406 break;
4407 case ZFS_DELEG_CREATE_SETS:
4408 case ZFS_DELEG_CREATE:
4409 res = 1;
4410 break;
4411 case ZFS_DELEG_USER_SETS:
4412 case ZFS_DELEG_USER:
4413 res = 2;
4414 break;
4415 case ZFS_DELEG_GROUP_SETS:
4416 case ZFS_DELEG_GROUP:
4417 res = 3;
4418 break;
4419 case ZFS_DELEG_EVERYONE_SETS:
4420 case ZFS_DELEG_EVERYONE:
4421 res = 4;
4422 break;
4423 default:
4424 res = -1;
4425 }
4426
4427 return (res);
4428 }
4429
4430 /* ARGSUSED */
4431 static int
4432 who_perm_compare(const void *larg, const void *rarg, void *unused)
4433 {
4434 const who_perm_node_t *l = larg;
4435 const who_perm_node_t *r = rarg;
4436 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4437 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4438 int lweight = who_type2weight(ltype);
4439 int rweight = who_type2weight(rtype);
4440 int res = lweight - rweight;
4441 if (res == 0)
4442 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4443 ZFS_MAX_DELEG_NAME-1);
4444
4445 if (res == 0)
4446 return (0);
4447 if (res > 0)
4448 return (1);
4449 else
4450 return (-1);
4451 }
4452
4453 /* ARGSUSED */
4454 static int
4455 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4456 {
4457 const deleg_perm_node_t *l = larg;
4458 const deleg_perm_node_t *r = rarg;
4459 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4460 ZFS_MAX_DELEG_NAME-1);
4461
4462 if (res == 0)
4463 return (0);
4464
4465 if (res > 0)
4466 return (1);
4467 else
4468 return (-1);
4469 }
4470
4471 static inline void
4472 fs_perm_set_init(fs_perm_set_t *fspset)
4473 {
4474 bzero(fspset, sizeof (fs_perm_set_t));
4475
4476 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4477 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4478 NULL, UU_DEFAULT)) == NULL)
4479 nomem();
4480 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4481 UU_DEFAULT)) == NULL)
4482 nomem();
4483
4484 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4485 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4486 who_perm_node_t, who_avl_node), who_perm_compare,
4487 UU_DEFAULT)) == NULL)
4488 nomem();
4489
4490 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4491 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4492 who_perm_node_t, who_avl_node), who_perm_compare,
4493 UU_DEFAULT)) == NULL)
4494 nomem();
4495
4496 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4497 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4498 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4499 == NULL)
4500 nomem();
4501 }
4502
4503 static inline void fs_perm_fini(fs_perm_t *);
4504 static inline void who_perm_fini(who_perm_t *);
4505
4506 static inline void
4507 fs_perm_set_fini(fs_perm_set_t *fspset)
4508 {
4509 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4510
4511 while (node != NULL) {
4512 fs_perm_node_t *next_node =
4513 uu_list_next(fspset->fsps_list, node);
4514 fs_perm_t *fsperm = &node->fspn_fsperm;
4515 fs_perm_fini(fsperm);
4516 uu_list_remove(fspset->fsps_list, node);
4517 free(node);
4518 node = next_node;
4519 }
4520
4521 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4522 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4523 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4524 }
4525
4526 static inline void
4527 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4528 const char *name)
4529 {
4530 deleg_perm->dp_who_type = type;
4531 deleg_perm->dp_name = name;
4532 }
4533
4534 static inline void
4535 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4536 zfs_deleg_who_type_t type, const char *name)
4537 {
4538 uu_avl_pool_t *pool;
4539 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4540
4541 bzero(who_perm, sizeof (who_perm_t));
4542
4543 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4544 UU_DEFAULT)) == NULL)
4545 nomem();
4546
4547 who_perm->who_type = type;
4548 who_perm->who_name = name;
4549 who_perm->who_fsperm = fsperm;
4550 }
4551
4552 static inline void
4553 who_perm_fini(who_perm_t *who_perm)
4554 {
4555 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4556
4557 while (node != NULL) {
4558 deleg_perm_node_t *next_node =
4559 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4560
4561 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4562 free(node);
4563 node = next_node;
4564 }
4565
4566 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4567 }
4568
4569 static inline void
4570 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4571 {
4572 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4573 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4574
4575 bzero(fsperm, sizeof (fs_perm_t));
4576
4577 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4578 == NULL)
4579 nomem();
4580
4581 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4582 == NULL)
4583 nomem();
4584
4585 fsperm->fsp_set = fspset;
4586 fsperm->fsp_name = fsname;
4587 }
4588
4589 static inline void
4590 fs_perm_fini(fs_perm_t *fsperm)
4591 {
4592 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4593 while (node != NULL) {
4594 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4595 node);
4596 who_perm_t *who_perm = &node->who_perm;
4597 who_perm_fini(who_perm);
4598 uu_avl_remove(fsperm->fsp_sc_avl, node);
4599 free(node);
4600 node = next_node;
4601 }
4602
4603 node = uu_avl_first(fsperm->fsp_uge_avl);
4604 while (node != NULL) {
4605 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4606 node);
4607 who_perm_t *who_perm = &node->who_perm;
4608 who_perm_fini(who_perm);
4609 uu_avl_remove(fsperm->fsp_uge_avl, node);
4610 free(node);
4611 node = next_node;
4612 }
4613
4614 uu_avl_destroy(fsperm->fsp_sc_avl);
4615 uu_avl_destroy(fsperm->fsp_uge_avl);
4616 }
4617
4618 static void
4619 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4620 zfs_deleg_who_type_t who_type, const char *name, char locality)
4621 {
4622 uu_avl_index_t idx = 0;
4623
4624 deleg_perm_node_t *found_node = NULL;
4625 deleg_perm_t *deleg_perm = &node->dpn_perm;
4626
4627 deleg_perm_init(deleg_perm, who_type, name);
4628
4629 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4630 == NULL)
4631 uu_avl_insert(avl, node, idx);
4632 else {
4633 node = found_node;
4634 deleg_perm = &node->dpn_perm;
4635 }
4636
4637
4638 switch (locality) {
4639 case ZFS_DELEG_LOCAL:
4640 deleg_perm->dp_local = B_TRUE;
4641 break;
4642 case ZFS_DELEG_DESCENDENT:
4643 deleg_perm->dp_descend = B_TRUE;
4644 break;
4645 case ZFS_DELEG_NA:
4646 break;
4647 default:
4648 assert(B_FALSE); /* invalid locality */
4649 }
4650 }
4651
4652 static inline int
4653 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4654 {
4655 nvpair_t *nvp = NULL;
4656 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4657 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4658 zfs_deleg_who_type_t who_type = who_perm->who_type;
4659
4660 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4661 const char *name = nvpair_name(nvp);
4662 data_type_t type = nvpair_type(nvp);
4663 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4664 deleg_perm_node_t *node =
4665 safe_malloc(sizeof (deleg_perm_node_t));
4666
4667 VERIFY(type == DATA_TYPE_BOOLEAN);
4668
4669 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4670 set_deleg_perm_node(avl, node, who_type, name, locality);
4671 }
4672
4673 return (0);
4674 }
4675
4676 static inline int
4677 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4678 {
4679 nvpair_t *nvp = NULL;
4680 fs_perm_set_t *fspset = fsperm->fsp_set;
4681
4682 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4683 nvlist_t *nvl2 = NULL;
4684 const char *name = nvpair_name(nvp);
4685 uu_avl_t *avl = NULL;
4686 uu_avl_pool_t *avl_pool = NULL;
4687 zfs_deleg_who_type_t perm_type = name[0];
4688 char perm_locality = name[1];
4689 const char *perm_name = name + 3;
4690 boolean_t is_set = B_TRUE;
4691 who_perm_t *who_perm = NULL;
4692
4693 assert('$' == name[2]);
4694
4695 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4696 return (-1);
4697
4698 switch (perm_type) {
4699 case ZFS_DELEG_CREATE:
4700 case ZFS_DELEG_CREATE_SETS:
4701 case ZFS_DELEG_NAMED_SET:
4702 case ZFS_DELEG_NAMED_SET_SETS:
4703 avl_pool = fspset->fsps_named_set_avl_pool;
4704 avl = fsperm->fsp_sc_avl;
4705 break;
4706 case ZFS_DELEG_USER:
4707 case ZFS_DELEG_USER_SETS:
4708 case ZFS_DELEG_GROUP:
4709 case ZFS_DELEG_GROUP_SETS:
4710 case ZFS_DELEG_EVERYONE:
4711 case ZFS_DELEG_EVERYONE_SETS:
4712 avl_pool = fspset->fsps_who_perm_avl_pool;
4713 avl = fsperm->fsp_uge_avl;
4714 break;
4715
4716 default:
4717 assert(!"unhandled zfs_deleg_who_type_t");
4718 }
4719
4720 if (is_set) {
4721 who_perm_node_t *found_node = NULL;
4722 who_perm_node_t *node = safe_malloc(
4723 sizeof (who_perm_node_t));
4724 who_perm = &node->who_perm;
4725 uu_avl_index_t idx = 0;
4726
4727 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4728 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4729
4730 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4731 == NULL) {
4732 if (avl == fsperm->fsp_uge_avl) {
4733 uid_t rid = 0;
4734 struct passwd *p = NULL;
4735 struct group *g = NULL;
4736 const char *nice_name = NULL;
4737
4738 switch (perm_type) {
4739 case ZFS_DELEG_USER_SETS:
4740 case ZFS_DELEG_USER:
4741 rid = atoi(perm_name);
4742 p = getpwuid(rid);
4743 if (p)
4744 nice_name = p->pw_name;
4745 break;
4746 case ZFS_DELEG_GROUP_SETS:
4747 case ZFS_DELEG_GROUP:
4748 rid = atoi(perm_name);
4749 g = getgrgid(rid);
4750 if (g)
4751 nice_name = g->gr_name;
4752 break;
4753
4754 default:
4755 break;
4756 }
4757
4758 if (nice_name != NULL)
4759 (void) strlcpy(
4760 node->who_perm.who_ug_name,
4761 nice_name, 256);
4762 }
4763
4764 uu_avl_insert(avl, node, idx);
4765 } else {
4766 node = found_node;
4767 who_perm = &node->who_perm;
4768 }
4769 }
4770 VERIFY3P(who_perm, !=, NULL);
4771 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4772 }
4773
4774 return (0);
4775 }
4776
4777 static inline int
4778 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4779 {
4780 nvpair_t *nvp = NULL;
4781 uu_avl_index_t idx = 0;
4782
4783 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4784 nvlist_t *nvl2 = NULL;
4785 const char *fsname = nvpair_name(nvp);
4786 data_type_t type = nvpair_type(nvp);
4787 fs_perm_t *fsperm = NULL;
4788 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4789 if (node == NULL)
4790 nomem();
4791
4792 fsperm = &node->fspn_fsperm;
4793
4794 VERIFY(DATA_TYPE_NVLIST == type);
4795
4796 uu_list_node_init(node, &node->fspn_list_node,
4797 fspset->fsps_list_pool);
4798
4799 idx = uu_list_numnodes(fspset->fsps_list);
4800 fs_perm_init(fsperm, fspset, fsname);
4801
4802 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4803 return (-1);
4804
4805 (void) parse_fs_perm(fsperm, nvl2);
4806
4807 uu_list_insert(fspset->fsps_list, node, idx);
4808 }
4809
4810 return (0);
4811 }
4812
4813 static inline const char *
4814 deleg_perm_comment(zfs_deleg_note_t note)
4815 {
4816 const char *str = "";
4817
4818 /* subcommands */
4819 switch (note) {
4820 /* SUBCOMMANDS */
4821 case ZFS_DELEG_NOTE_ALLOW:
4822 str = gettext("Must also have the permission that is being"
4823 "\n\t\t\t\tallowed");
4824 break;
4825 case ZFS_DELEG_NOTE_CLONE:
4826 str = gettext("Must also have the 'create' ability and 'mount'"
4827 "\n\t\t\t\tability in the origin file system");
4828 break;
4829 case ZFS_DELEG_NOTE_CREATE:
4830 str = gettext("Must also have the 'mount' ability");
4831 break;
4832 case ZFS_DELEG_NOTE_DESTROY:
4833 str = gettext("Must also have the 'mount' ability");
4834 break;
4835 case ZFS_DELEG_NOTE_DIFF:
4836 str = gettext("Allows lookup of paths within a dataset;"
4837 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4838 "\n\t\t\t\tin order to use zfs diff");
4839 break;
4840 case ZFS_DELEG_NOTE_HOLD:
4841 str = gettext("Allows adding a user hold to a snapshot");
4842 break;
4843 case ZFS_DELEG_NOTE_MOUNT:
4844 str = gettext("Allows mount/umount of ZFS datasets");
4845 break;
4846 case ZFS_DELEG_NOTE_PROMOTE:
4847 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4848 " 'promote' ability in the origin file system");
4849 break;
4850 case ZFS_DELEG_NOTE_RECEIVE:
4851 str = gettext("Must also have the 'mount' and 'create'"
4852 " ability");
4853 break;
4854 case ZFS_DELEG_NOTE_RELEASE:
4855 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4856 "might destroy the snapshot");
4857 break;
4858 case ZFS_DELEG_NOTE_RENAME:
4859 str = gettext("Must also have the 'mount' and 'create'"
4860 "\n\t\t\t\tability in the new parent");
4861 break;
4862 case ZFS_DELEG_NOTE_ROLLBACK:
4863 str = gettext("");
4864 break;
4865 case ZFS_DELEG_NOTE_SEND:
4866 str = gettext("");
4867 break;
4868 case ZFS_DELEG_NOTE_SHARE:
4869 str = gettext("Allows sharing file systems over NFS or SMB"
4870 "\n\t\t\t\tprotocols");
4871 break;
4872 case ZFS_DELEG_NOTE_SNAPSHOT:
4873 str = gettext("");
4874 break;
4875 case ZFS_DELEG_NOTE_LOAD_KEY:
4876 str = gettext("Allows loading or unloading an encryption key");
4877 break;
4878 case ZFS_DELEG_NOTE_CHANGE_KEY:
4879 str = gettext("Allows changing or adding an encryption key");
4880 break;
4881 /*
4882 * case ZFS_DELEG_NOTE_VSCAN:
4883 * str = gettext("");
4884 * break;
4885 */
4886 /* OTHER */
4887 case ZFS_DELEG_NOTE_GROUPQUOTA:
4888 str = gettext("Allows accessing any groupquota@... property");
4889 break;
4890 case ZFS_DELEG_NOTE_GROUPUSED:
4891 str = gettext("Allows reading any groupused@... property");
4892 break;
4893 case ZFS_DELEG_NOTE_USERPROP:
4894 str = gettext("Allows changing any user property");
4895 break;
4896 case ZFS_DELEG_NOTE_USERQUOTA:
4897 str = gettext("Allows accessing any userquota@... property");
4898 break;
4899 case ZFS_DELEG_NOTE_USERUSED:
4900 str = gettext("Allows reading any userused@... property");
4901 break;
4902 case ZFS_DELEG_NOTE_USEROBJQUOTA:
4903 str = gettext("Allows accessing any userobjquota@... property");
4904 break;
4905 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
4906 str = gettext("Allows accessing any \n\t\t\t\t"
4907 "groupobjquota@... property");
4908 break;
4909 case ZFS_DELEG_NOTE_GROUPOBJUSED:
4910 str = gettext("Allows reading any groupobjused@... property");
4911 break;
4912 case ZFS_DELEG_NOTE_USEROBJUSED:
4913 str = gettext("Allows reading any userobjused@... property");
4914 break;
4915 /* other */
4916 default:
4917 str = "";
4918 }
4919
4920 return (str);
4921 }
4922
4923 struct allow_opts {
4924 boolean_t local;
4925 boolean_t descend;
4926 boolean_t user;
4927 boolean_t group;
4928 boolean_t everyone;
4929 boolean_t create;
4930 boolean_t set;
4931 boolean_t recursive; /* unallow only */
4932 boolean_t prt_usage;
4933
4934 boolean_t prt_perms;
4935 char *who;
4936 char *perms;
4937 const char *dataset;
4938 };
4939
4940 static inline int
4941 prop_cmp(const void *a, const void *b)
4942 {
4943 const char *str1 = *(const char **)a;
4944 const char *str2 = *(const char **)b;
4945 return (strcmp(str1, str2));
4946 }
4947
4948 static void
4949 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4950 {
4951 const char *opt_desc[] = {
4952 "-h", gettext("show this help message and exit"),
4953 "-l", gettext("set permission locally"),
4954 "-d", gettext("set permission for descents"),
4955 "-u", gettext("set permission for user"),
4956 "-g", gettext("set permission for group"),
4957 "-e", gettext("set permission for everyone"),
4958 "-c", gettext("set create time permission"),
4959 "-s", gettext("define permission set"),
4960 /* unallow only */
4961 "-r", gettext("remove permissions recursively"),
4962 };
4963 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4964 size_t allow_size = unallow_size - 2;
4965 const char *props[ZFS_NUM_PROPS];
4966 int i;
4967 size_t count = 0;
4968 FILE *fp = requested ? stdout : stderr;
4969 zprop_desc_t *pdtbl = zfs_prop_get_table();
4970 const char *fmt = gettext("%-16s %-14s\t%s\n");
4971
4972 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4973 HELP_ALLOW));
4974 (void) fprintf(fp, gettext("Options:\n"));
4975 for (i = 0; i < (un ? unallow_size : allow_size); i += 2) {
4976 const char *opt = opt_desc[i];
4977 const char *optdsc = opt_desc[i + 1];
4978 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4979 }
4980
4981 (void) fprintf(fp, gettext("\nThe following permissions are "
4982 "supported:\n\n"));
4983 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4984 gettext("NOTES"));
4985 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4986 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4987 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4988 const char *perm_type = deleg_perm_type(perm_note);
4989 const char *perm_comment = deleg_perm_comment(perm_note);
4990 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4991 }
4992
4993 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4994 zprop_desc_t *pd = &pdtbl[i];
4995 if (pd->pd_visible != B_TRUE)
4996 continue;
4997
4998 if (pd->pd_attr == PROP_READONLY)
4999 continue;
5000
5001 props[count++] = pd->pd_name;
5002 }
5003 props[count] = NULL;
5004
5005 qsort(props, count, sizeof (char *), prop_cmp);
5006
5007 for (i = 0; i < count; i++)
5008 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
5009
5010 if (msg != NULL)
5011 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
5012
5013 exit(requested ? 0 : 2);
5014 }
5015
5016 static inline const char *
5017 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
5018 char **permsp)
5019 {
5020 if (un && argc == expected_argc - 1)
5021 *permsp = NULL;
5022 else if (argc == expected_argc)
5023 *permsp = argv[argc - 2];
5024 else
5025 allow_usage(un, B_FALSE,
5026 gettext("wrong number of parameters\n"));
5027
5028 return (argv[argc - 1]);
5029 }
5030
5031 static void
5032 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
5033 {
5034 int uge_sum = opts->user + opts->group + opts->everyone;
5035 int csuge_sum = opts->create + opts->set + uge_sum;
5036 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
5037 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
5038
5039 if (uge_sum > 1)
5040 allow_usage(un, B_FALSE,
5041 gettext("-u, -g, and -e are mutually exclusive\n"));
5042
5043 if (opts->prt_usage) {
5044 if (argc == 0 && all_sum == 0)
5045 allow_usage(un, B_TRUE, NULL);
5046 else
5047 usage(B_FALSE);
5048 }
5049
5050 if (opts->set) {
5051 if (csuge_sum > 1)
5052 allow_usage(un, B_FALSE,
5053 gettext("invalid options combined with -s\n"));
5054
5055 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
5056 if (argv[0][0] != '@')
5057 allow_usage(un, B_FALSE,
5058 gettext("invalid set name: missing '@' prefix\n"));
5059 opts->who = argv[0];
5060 } else if (opts->create) {
5061 if (ldcsuge_sum > 1)
5062 allow_usage(un, B_FALSE,
5063 gettext("invalid options combined with -c\n"));
5064 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5065 } else if (opts->everyone) {
5066 if (csuge_sum > 1)
5067 allow_usage(un, B_FALSE,
5068 gettext("invalid options combined with -e\n"));
5069 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5070 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
5071 == 0) {
5072 opts->everyone = B_TRUE;
5073 argc--;
5074 argv++;
5075 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5076 } else if (argc == 1 && !un) {
5077 opts->prt_perms = B_TRUE;
5078 opts->dataset = argv[argc-1];
5079 } else {
5080 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
5081 opts->who = argv[0];
5082 }
5083
5084 if (!opts->local && !opts->descend) {
5085 opts->local = B_TRUE;
5086 opts->descend = B_TRUE;
5087 }
5088 }
5089
5090 static void
5091 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
5092 const char *who, char *perms, nvlist_t *top_nvl)
5093 {
5094 int i;
5095 char ld[2] = { '\0', '\0' };
5096 char who_buf[MAXNAMELEN + 32];
5097 char base_type = '\0';
5098 char set_type = '\0';
5099 nvlist_t *base_nvl = NULL;
5100 nvlist_t *set_nvl = NULL;
5101 nvlist_t *nvl;
5102
5103 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
5104 nomem();
5105 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
5106 nomem();
5107
5108 switch (type) {
5109 case ZFS_DELEG_NAMED_SET_SETS:
5110 case ZFS_DELEG_NAMED_SET:
5111 set_type = ZFS_DELEG_NAMED_SET_SETS;
5112 base_type = ZFS_DELEG_NAMED_SET;
5113 ld[0] = ZFS_DELEG_NA;
5114 break;
5115 case ZFS_DELEG_CREATE_SETS:
5116 case ZFS_DELEG_CREATE:
5117 set_type = ZFS_DELEG_CREATE_SETS;
5118 base_type = ZFS_DELEG_CREATE;
5119 ld[0] = ZFS_DELEG_NA;
5120 break;
5121 case ZFS_DELEG_USER_SETS:
5122 case ZFS_DELEG_USER:
5123 set_type = ZFS_DELEG_USER_SETS;
5124 base_type = ZFS_DELEG_USER;
5125 if (local)
5126 ld[0] = ZFS_DELEG_LOCAL;
5127 if (descend)
5128 ld[1] = ZFS_DELEG_DESCENDENT;
5129 break;
5130 case ZFS_DELEG_GROUP_SETS:
5131 case ZFS_DELEG_GROUP:
5132 set_type = ZFS_DELEG_GROUP_SETS;
5133 base_type = ZFS_DELEG_GROUP;
5134 if (local)
5135 ld[0] = ZFS_DELEG_LOCAL;
5136 if (descend)
5137 ld[1] = ZFS_DELEG_DESCENDENT;
5138 break;
5139 case ZFS_DELEG_EVERYONE_SETS:
5140 case ZFS_DELEG_EVERYONE:
5141 set_type = ZFS_DELEG_EVERYONE_SETS;
5142 base_type = ZFS_DELEG_EVERYONE;
5143 if (local)
5144 ld[0] = ZFS_DELEG_LOCAL;
5145 if (descend)
5146 ld[1] = ZFS_DELEG_DESCENDENT;
5147 break;
5148
5149 default:
5150 assert(set_type != '\0' && base_type != '\0');
5151 }
5152
5153 if (perms != NULL) {
5154 char *curr = perms;
5155 char *end = curr + strlen(perms);
5156
5157 while (curr < end) {
5158 char *delim = strchr(curr, ',');
5159 if (delim == NULL)
5160 delim = end;
5161 else
5162 *delim = '\0';
5163
5164 if (curr[0] == '@')
5165 nvl = set_nvl;
5166 else
5167 nvl = base_nvl;
5168
5169 (void) nvlist_add_boolean(nvl, curr);
5170 if (delim != end)
5171 *delim = ',';
5172 curr = delim + 1;
5173 }
5174
5175 for (i = 0; i < 2; i++) {
5176 char locality = ld[i];
5177 if (locality == 0)
5178 continue;
5179
5180 if (!nvlist_empty(base_nvl)) {
5181 if (who != NULL)
5182 (void) snprintf(who_buf,
5183 sizeof (who_buf), "%c%c$%s",
5184 base_type, locality, who);
5185 else
5186 (void) snprintf(who_buf,
5187 sizeof (who_buf), "%c%c$",
5188 base_type, locality);
5189
5190 (void) nvlist_add_nvlist(top_nvl, who_buf,
5191 base_nvl);
5192 }
5193
5194
5195 if (!nvlist_empty(set_nvl)) {
5196 if (who != NULL)
5197 (void) snprintf(who_buf,
5198 sizeof (who_buf), "%c%c$%s",
5199 set_type, locality, who);
5200 else
5201 (void) snprintf(who_buf,
5202 sizeof (who_buf), "%c%c$",
5203 set_type, locality);
5204
5205 (void) nvlist_add_nvlist(top_nvl, who_buf,
5206 set_nvl);
5207 }
5208 }
5209 } else {
5210 for (i = 0; i < 2; i++) {
5211 char locality = ld[i];
5212 if (locality == 0)
5213 continue;
5214
5215 if (who != NULL)
5216 (void) snprintf(who_buf, sizeof (who_buf),
5217 "%c%c$%s", base_type, locality, who);
5218 else
5219 (void) snprintf(who_buf, sizeof (who_buf),
5220 "%c%c$", base_type, locality);
5221 (void) nvlist_add_boolean(top_nvl, who_buf);
5222
5223 if (who != NULL)
5224 (void) snprintf(who_buf, sizeof (who_buf),
5225 "%c%c$%s", set_type, locality, who);
5226 else
5227 (void) snprintf(who_buf, sizeof (who_buf),
5228 "%c%c$", set_type, locality);
5229 (void) nvlist_add_boolean(top_nvl, who_buf);
5230 }
5231 }
5232 }
5233
5234 static int
5235 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5236 {
5237 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5238 nomem();
5239
5240 if (opts->set) {
5241 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5242 opts->descend, opts->who, opts->perms, *nvlp);
5243 } else if (opts->create) {
5244 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5245 opts->descend, NULL, opts->perms, *nvlp);
5246 } else if (opts->everyone) {
5247 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5248 opts->descend, NULL, opts->perms, *nvlp);
5249 } else {
5250 char *curr = opts->who;
5251 char *end = curr + strlen(curr);
5252
5253 while (curr < end) {
5254 const char *who;
5255 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5256 char *endch;
5257 char *delim = strchr(curr, ',');
5258 char errbuf[256];
5259 char id[64];
5260 struct passwd *p = NULL;
5261 struct group *g = NULL;
5262
5263 uid_t rid;
5264 if (delim == NULL)
5265 delim = end;
5266 else
5267 *delim = '\0';
5268
5269 rid = (uid_t)strtol(curr, &endch, 0);
5270 if (opts->user) {
5271 who_type = ZFS_DELEG_USER;
5272 if (*endch != '\0')
5273 p = getpwnam(curr);
5274 else
5275 p = getpwuid(rid);
5276
5277 if (p != NULL)
5278 rid = p->pw_uid;
5279 else {
5280 (void) snprintf(errbuf, 256, gettext(
5281 "invalid user %s"), curr);
5282 allow_usage(un, B_TRUE, errbuf);
5283 }
5284 } else if (opts->group) {
5285 who_type = ZFS_DELEG_GROUP;
5286 if (*endch != '\0')
5287 g = getgrnam(curr);
5288 else
5289 g = getgrgid(rid);
5290
5291 if (g != NULL)
5292 rid = g->gr_gid;
5293 else {
5294 (void) snprintf(errbuf, 256, gettext(
5295 "invalid group %s"), curr);
5296 allow_usage(un, B_TRUE, errbuf);
5297 }
5298 } else {
5299 if (*endch != '\0') {
5300 p = getpwnam(curr);
5301 } else {
5302 p = getpwuid(rid);
5303 }
5304
5305 if (p == NULL) {
5306 if (*endch != '\0') {
5307 g = getgrnam(curr);
5308 } else {
5309 g = getgrgid(rid);
5310 }
5311 }
5312
5313 if (p != NULL) {
5314 who_type = ZFS_DELEG_USER;
5315 rid = p->pw_uid;
5316 } else if (g != NULL) {
5317 who_type = ZFS_DELEG_GROUP;
5318 rid = g->gr_gid;
5319 } else {
5320 (void) snprintf(errbuf, 256, gettext(
5321 "invalid user/group %s"), curr);
5322 allow_usage(un, B_TRUE, errbuf);
5323 }
5324 }
5325
5326 (void) sprintf(id, "%u", rid);
5327 who = id;
5328
5329 store_allow_perm(who_type, opts->local,
5330 opts->descend, who, opts->perms, *nvlp);
5331 curr = delim + 1;
5332 }
5333 }
5334
5335 return (0);
5336 }
5337
5338 static void
5339 print_set_creat_perms(uu_avl_t *who_avl)
5340 {
5341 const char *sc_title[] = {
5342 gettext("Permission sets:\n"),
5343 gettext("Create time permissions:\n"),
5344 NULL
5345 };
5346 const char **title_ptr = sc_title;
5347 who_perm_node_t *who_node = NULL;
5348 int prev_weight = -1;
5349
5350 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5351 who_node = uu_avl_next(who_avl, who_node)) {
5352 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5353 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5354 const char *who_name = who_node->who_perm.who_name;
5355 int weight = who_type2weight(who_type);
5356 boolean_t first = B_TRUE;
5357 deleg_perm_node_t *deleg_node;
5358
5359 if (prev_weight != weight) {
5360 (void) printf("%s", *title_ptr++);
5361 prev_weight = weight;
5362 }
5363
5364 if (who_name == NULL || strnlen(who_name, 1) == 0)
5365 (void) printf("\t");
5366 else
5367 (void) printf("\t%s ", who_name);
5368
5369 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5370 deleg_node = uu_avl_next(avl, deleg_node)) {
5371 if (first) {
5372 (void) printf("%s",
5373 deleg_node->dpn_perm.dp_name);
5374 first = B_FALSE;
5375 } else
5376 (void) printf(",%s",
5377 deleg_node->dpn_perm.dp_name);
5378 }
5379
5380 (void) printf("\n");
5381 }
5382 }
5383
5384 static void
5385 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5386 const char *title)
5387 {
5388 who_perm_node_t *who_node = NULL;
5389 boolean_t prt_title = B_TRUE;
5390 uu_avl_walk_t *walk;
5391
5392 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5393 nomem();
5394
5395 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5396 const char *who_name = who_node->who_perm.who_name;
5397 const char *nice_who_name = who_node->who_perm.who_ug_name;
5398 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5399 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5400 char delim = ' ';
5401 deleg_perm_node_t *deleg_node;
5402 boolean_t prt_who = B_TRUE;
5403
5404 for (deleg_node = uu_avl_first(avl);
5405 deleg_node != NULL;
5406 deleg_node = uu_avl_next(avl, deleg_node)) {
5407 if (local != deleg_node->dpn_perm.dp_local ||
5408 descend != deleg_node->dpn_perm.dp_descend)
5409 continue;
5410
5411 if (prt_who) {
5412 const char *who = NULL;
5413 if (prt_title) {
5414 prt_title = B_FALSE;
5415 (void) printf("%s", title);
5416 }
5417
5418 switch (who_type) {
5419 case ZFS_DELEG_USER_SETS:
5420 case ZFS_DELEG_USER:
5421 who = gettext("user");
5422 if (nice_who_name)
5423 who_name = nice_who_name;
5424 break;
5425 case ZFS_DELEG_GROUP_SETS:
5426 case ZFS_DELEG_GROUP:
5427 who = gettext("group");
5428 if (nice_who_name)
5429 who_name = nice_who_name;
5430 break;
5431 case ZFS_DELEG_EVERYONE_SETS:
5432 case ZFS_DELEG_EVERYONE:
5433 who = gettext("everyone");
5434 who_name = NULL;
5435 break;
5436
5437 default:
5438 assert(who != NULL);
5439 }
5440
5441 prt_who = B_FALSE;
5442 if (who_name == NULL)
5443 (void) printf("\t%s", who);
5444 else
5445 (void) printf("\t%s %s", who, who_name);
5446 }
5447
5448 (void) printf("%c%s", delim,
5449 deleg_node->dpn_perm.dp_name);
5450 delim = ',';
5451 }
5452
5453 if (!prt_who)
5454 (void) printf("\n");
5455 }
5456
5457 uu_avl_walk_end(walk);
5458 }
5459
5460 static void
5461 print_fs_perms(fs_perm_set_t *fspset)
5462 {
5463 fs_perm_node_t *node = NULL;
5464 char buf[MAXNAMELEN + 32];
5465 const char *dsname = buf;
5466
5467 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5468 node = uu_list_next(fspset->fsps_list, node)) {
5469 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5470 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5471 int left = 0;
5472
5473 (void) snprintf(buf, sizeof (buf),
5474 gettext("---- Permissions on %s "),
5475 node->fspn_fsperm.fsp_name);
5476 (void) printf("%s", dsname);
5477 left = 70 - strlen(buf);
5478 while (left-- > 0)
5479 (void) printf("-");
5480 (void) printf("\n");
5481
5482 print_set_creat_perms(sc_avl);
5483 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5484 gettext("Local permissions:\n"));
5485 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5486 gettext("Descendent permissions:\n"));
5487 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5488 gettext("Local+Descendent permissions:\n"));
5489 }
5490 }
5491
5492 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5493
5494 struct deleg_perms {
5495 boolean_t un;
5496 nvlist_t *nvl;
5497 };
5498
5499 static int
5500 set_deleg_perms(zfs_handle_t *zhp, void *data)
5501 {
5502 struct deleg_perms *perms = (struct deleg_perms *)data;
5503 zfs_type_t zfs_type = zfs_get_type(zhp);
5504
5505 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5506 return (0);
5507
5508 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5509 }
5510
5511 static int
5512 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5513 {
5514 zfs_handle_t *zhp;
5515 nvlist_t *perm_nvl = NULL;
5516 nvlist_t *update_perm_nvl = NULL;
5517 int error = 1;
5518 int c;
5519 struct allow_opts opts = { 0 };
5520
5521 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5522
5523 /* check opts */
5524 while ((c = getopt(argc, argv, optstr)) != -1) {
5525 switch (c) {
5526 case 'l':
5527 opts.local = B_TRUE;
5528 break;
5529 case 'd':
5530 opts.descend = B_TRUE;
5531 break;
5532 case 'u':
5533 opts.user = B_TRUE;
5534 break;
5535 case 'g':
5536 opts.group = B_TRUE;
5537 break;
5538 case 'e':
5539 opts.everyone = B_TRUE;
5540 break;
5541 case 's':
5542 opts.set = B_TRUE;
5543 break;
5544 case 'c':
5545 opts.create = B_TRUE;
5546 break;
5547 case 'r':
5548 opts.recursive = B_TRUE;
5549 break;
5550 case ':':
5551 (void) fprintf(stderr, gettext("missing argument for "
5552 "'%c' option\n"), optopt);
5553 usage(B_FALSE);
5554 break;
5555 case 'h':
5556 opts.prt_usage = B_TRUE;
5557 break;
5558 case '?':
5559 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5560 optopt);
5561 usage(B_FALSE);
5562 }
5563 }
5564
5565 argc -= optind;
5566 argv += optind;
5567
5568 /* check arguments */
5569 parse_allow_args(argc, argv, un, &opts);
5570
5571 /* try to open the dataset */
5572 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5573 ZFS_TYPE_VOLUME)) == NULL) {
5574 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5575 opts.dataset);
5576 return (-1);
5577 }
5578
5579 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5580 goto cleanup2;
5581
5582 fs_perm_set_init(&fs_perm_set);
5583 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5584 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5585 goto cleanup1;
5586 }
5587
5588 if (opts.prt_perms)
5589 print_fs_perms(&fs_perm_set);
5590 else {
5591 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5592 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5593 goto cleanup0;
5594
5595 if (un && opts.recursive) {
5596 struct deleg_perms data = { un, update_perm_nvl };
5597 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5598 &data) != 0)
5599 goto cleanup0;
5600 }
5601 }
5602
5603 error = 0;
5604
5605 cleanup0:
5606 nvlist_free(perm_nvl);
5607 nvlist_free(update_perm_nvl);
5608 cleanup1:
5609 fs_perm_set_fini(&fs_perm_set);
5610 cleanup2:
5611 zfs_close(zhp);
5612
5613 return (error);
5614 }
5615
5616 static int
5617 zfs_do_allow(int argc, char **argv)
5618 {
5619 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5620 }
5621
5622 static int
5623 zfs_do_unallow(int argc, char **argv)
5624 {
5625 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5626 }
5627
5628 static int
5629 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5630 {
5631 int errors = 0;
5632 int i;
5633 const char *tag;
5634 boolean_t recursive = B_FALSE;
5635 const char *opts = holding ? "rt" : "r";
5636 int c;
5637
5638 /* check options */
5639 while ((c = getopt(argc, argv, opts)) != -1) {
5640 switch (c) {
5641 case 'r':
5642 recursive = B_TRUE;
5643 break;
5644 case '?':
5645 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5646 optopt);
5647 usage(B_FALSE);
5648 }
5649 }
5650
5651 argc -= optind;
5652 argv += optind;
5653
5654 /* check number of arguments */
5655 if (argc < 2)
5656 usage(B_FALSE);
5657
5658 tag = argv[0];
5659 --argc;
5660 ++argv;
5661
5662 if (holding && tag[0] == '.') {
5663 /* tags starting with '.' are reserved for libzfs */
5664 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5665 usage(B_FALSE);
5666 }
5667
5668 for (i = 0; i < argc; ++i) {
5669 zfs_handle_t *zhp;
5670 char parent[ZFS_MAX_DATASET_NAME_LEN];
5671 const char *delim;
5672 char *path = argv[i];
5673
5674 delim = strchr(path, '@');
5675 if (delim == NULL) {
5676 (void) fprintf(stderr,
5677 gettext("'%s' is not a snapshot\n"), path);
5678 ++errors;
5679 continue;
5680 }
5681 (void) strncpy(parent, path, delim - path);
5682 parent[delim - path] = '\0';
5683
5684 zhp = zfs_open(g_zfs, parent,
5685 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5686 if (zhp == NULL) {
5687 ++errors;
5688 continue;
5689 }
5690 if (holding) {
5691 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5692 ++errors;
5693 } else {
5694 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5695 ++errors;
5696 }
5697 zfs_close(zhp);
5698 }
5699
5700 return (errors != 0);
5701 }
5702
5703 /*
5704 * zfs hold [-r] [-t] <tag> <snap> ...
5705 *
5706 * -r Recursively hold
5707 *
5708 * Apply a user-hold with the given tag to the list of snapshots.
5709 */
5710 static int
5711 zfs_do_hold(int argc, char **argv)
5712 {
5713 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5714 }
5715
5716 /*
5717 * zfs release [-r] <tag> <snap> ...
5718 *
5719 * -r Recursively release
5720 *
5721 * Release a user-hold with the given tag from the list of snapshots.
5722 */
5723 static int
5724 zfs_do_release(int argc, char **argv)
5725 {
5726 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5727 }
5728
5729 typedef struct holds_cbdata {
5730 boolean_t cb_recursive;
5731 const char *cb_snapname;
5732 nvlist_t **cb_nvlp;
5733 size_t cb_max_namelen;
5734 size_t cb_max_taglen;
5735 } holds_cbdata_t;
5736
5737 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5738 #define DATETIME_BUF_LEN (32)
5739 /*
5740 *
5741 */
5742 static void
5743 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5744 {
5745 int i;
5746 nvpair_t *nvp = NULL;
5747 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5748 const char *col;
5749
5750 if (!scripted) {
5751 for (i = 0; i < 3; i++) {
5752 col = gettext(hdr_cols[i]);
5753 if (i < 2)
5754 (void) printf("%-*s ", i ? tagwidth : nwidth,
5755 col);
5756 else
5757 (void) printf("%s\n", col);
5758 }
5759 }
5760
5761 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5762 char *zname = nvpair_name(nvp);
5763 nvlist_t *nvl2;
5764 nvpair_t *nvp2 = NULL;
5765 (void) nvpair_value_nvlist(nvp, &nvl2);
5766 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5767 char tsbuf[DATETIME_BUF_LEN];
5768 char *tagname = nvpair_name(nvp2);
5769 uint64_t val = 0;
5770 time_t time;
5771 struct tm t;
5772
5773 (void) nvpair_value_uint64(nvp2, &val);
5774 time = (time_t)val;
5775 (void) localtime_r(&time, &t);
5776 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5777 gettext(STRFTIME_FMT_STR), &t);
5778
5779 if (scripted) {
5780 (void) printf("%s\t%s\t%s\n", zname,
5781 tagname, tsbuf);
5782 } else {
5783 (void) printf("%-*s %-*s %s\n", nwidth,
5784 zname, tagwidth, tagname, tsbuf);
5785 }
5786 }
5787 }
5788 }
5789
5790 /*
5791 * Generic callback function to list a dataset or snapshot.
5792 */
5793 static int
5794 holds_callback(zfs_handle_t *zhp, void *data)
5795 {
5796 holds_cbdata_t *cbp = data;
5797 nvlist_t *top_nvl = *cbp->cb_nvlp;
5798 nvlist_t *nvl = NULL;
5799 nvpair_t *nvp = NULL;
5800 const char *zname = zfs_get_name(zhp);
5801 size_t znamelen = strlen(zname);
5802
5803 if (cbp->cb_recursive) {
5804 const char *snapname;
5805 char *delim = strchr(zname, '@');
5806 if (delim == NULL)
5807 return (0);
5808
5809 snapname = delim + 1;
5810 if (strcmp(cbp->cb_snapname, snapname))
5811 return (0);
5812 }
5813
5814 if (zfs_get_holds(zhp, &nvl) != 0)
5815 return (-1);
5816
5817 if (znamelen > cbp->cb_max_namelen)
5818 cbp->cb_max_namelen = znamelen;
5819
5820 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5821 const char *tag = nvpair_name(nvp);
5822 size_t taglen = strlen(tag);
5823 if (taglen > cbp->cb_max_taglen)
5824 cbp->cb_max_taglen = taglen;
5825 }
5826
5827 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5828 }
5829
5830 /*
5831 * zfs holds [-r] <snap> ...
5832 *
5833 * -r Recursively hold
5834 */
5835 static int
5836 zfs_do_holds(int argc, char **argv)
5837 {
5838 int errors = 0;
5839 int c;
5840 int i;
5841 boolean_t scripted = B_FALSE;
5842 boolean_t recursive = B_FALSE;
5843 const char *opts = "rH";
5844 nvlist_t *nvl;
5845
5846 int types = ZFS_TYPE_SNAPSHOT;
5847 holds_cbdata_t cb = { 0 };
5848
5849 int limit = 0;
5850 int ret = 0;
5851 int flags = 0;
5852
5853 /* check options */
5854 while ((c = getopt(argc, argv, opts)) != -1) {
5855 switch (c) {
5856 case 'r':
5857 recursive = B_TRUE;
5858 break;
5859 case 'H':
5860 scripted = B_TRUE;
5861 break;
5862 case '?':
5863 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5864 optopt);
5865 usage(B_FALSE);
5866 }
5867 }
5868
5869 if (recursive) {
5870 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5871 flags |= ZFS_ITER_RECURSE;
5872 }
5873
5874 argc -= optind;
5875 argv += optind;
5876
5877 /* check number of arguments */
5878 if (argc < 1)
5879 usage(B_FALSE);
5880
5881 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5882 nomem();
5883
5884 for (i = 0; i < argc; ++i) {
5885 char *snapshot = argv[i];
5886 const char *delim;
5887 const char *snapname;
5888
5889 delim = strchr(snapshot, '@');
5890 if (delim == NULL) {
5891 (void) fprintf(stderr,
5892 gettext("'%s' is not a snapshot\n"), snapshot);
5893 ++errors;
5894 continue;
5895 }
5896 snapname = delim + 1;
5897 if (recursive)
5898 snapshot[delim - snapshot] = '\0';
5899
5900 cb.cb_recursive = recursive;
5901 cb.cb_snapname = snapname;
5902 cb.cb_nvlp = &nvl;
5903
5904 /*
5905 * 1. collect holds data, set format options
5906 */
5907 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5908 holds_callback, &cb);
5909 if (ret != 0)
5910 ++errors;
5911 }
5912
5913 /*
5914 * 2. print holds data
5915 */
5916 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5917
5918 if (nvlist_empty(nvl))
5919 (void) fprintf(stderr, gettext("no datasets available\n"));
5920
5921 nvlist_free(nvl);
5922
5923 return (0 != errors);
5924 }
5925
5926 #define CHECK_SPINNER 30
5927 #define SPINNER_TIME 3 /* seconds */
5928 #define MOUNT_TIME 5 /* seconds */
5929
5930 static int
5931 get_one_dataset(zfs_handle_t *zhp, void *data)
5932 {
5933 static char *spin[] = { "-", "\\", "|", "/" };
5934 static int spinval = 0;
5935 static int spincheck = 0;
5936 static time_t last_spin_time = (time_t)0;
5937 get_all_cb_t *cbp = data;
5938 zfs_type_t type = zfs_get_type(zhp);
5939
5940 if (cbp->cb_verbose) {
5941 if (--spincheck < 0) {
5942 time_t now = time(NULL);
5943 if (last_spin_time + SPINNER_TIME < now) {
5944 update_progress(spin[spinval++ % 4]);
5945 last_spin_time = now;
5946 }
5947 spincheck = CHECK_SPINNER;
5948 }
5949 }
5950
5951 /*
5952 * Iterate over any nested datasets.
5953 */
5954 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5955 zfs_close(zhp);
5956 return (1);
5957 }
5958
5959 /*
5960 * Skip any datasets whose type does not match.
5961 */
5962 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5963 zfs_close(zhp);
5964 return (0);
5965 }
5966 libzfs_add_handle(cbp, zhp);
5967 assert(cbp->cb_used <= cbp->cb_alloc);
5968
5969 return (0);
5970 }
5971
5972 static void
5973 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5974 {
5975 get_all_cb_t cb = { 0 };
5976 cb.cb_verbose = verbose;
5977 cb.cb_getone = get_one_dataset;
5978
5979 if (verbose)
5980 set_progress_header(gettext("Reading ZFS config"));
5981 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5982
5983 *dslist = cb.cb_handles;
5984 *count = cb.cb_used;
5985
5986 if (verbose)
5987 finish_progress(gettext("done."));
5988 }
5989
5990 /*
5991 * Generic callback for sharing or mounting filesystems. Because the code is so
5992 * similar, we have a common function with an extra parameter to determine which
5993 * mode we are using.
5994 */
5995 #define OP_SHARE 0x1
5996 #define OP_MOUNT 0x2
5997
5998 /*
5999 * Share or mount a dataset.
6000 */
6001 static int
6002 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
6003 boolean_t explicit, const char *options)
6004 {
6005 char mountpoint[ZFS_MAXPROPLEN];
6006 char shareopts[ZFS_MAXPROPLEN];
6007 char smbshareopts[ZFS_MAXPROPLEN];
6008 const char *cmdname = op == OP_SHARE ? "share" : "mount";
6009 struct mnttab mnt;
6010 uint64_t zoned, canmount;
6011 boolean_t shared_nfs, shared_smb;
6012
6013 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
6014
6015 /*
6016 * Check to make sure we can mount/share this dataset. If we
6017 * are in the global zone and the filesystem is exported to a
6018 * local zone, or if we are in a local zone and the
6019 * filesystem is not exported, then it is an error.
6020 */
6021 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
6022
6023 if (zoned && getzoneid() == GLOBAL_ZONEID) {
6024 if (!explicit)
6025 return (0);
6026
6027 (void) fprintf(stderr, gettext("cannot %s '%s': "
6028 "dataset is exported to a local zone\n"), cmdname,
6029 zfs_get_name(zhp));
6030 return (1);
6031
6032 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
6033 if (!explicit)
6034 return (0);
6035
6036 (void) fprintf(stderr, gettext("cannot %s '%s': "
6037 "permission denied\n"), cmdname,
6038 zfs_get_name(zhp));
6039 return (1);
6040 }
6041
6042 /*
6043 * Ignore any filesystems which don't apply to us. This
6044 * includes those with a legacy mountpoint, or those with
6045 * legacy share options.
6046 */
6047 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
6048 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
6049 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
6050 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
6051 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
6052 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
6053
6054 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
6055 strcmp(smbshareopts, "off") == 0) {
6056 if (!explicit)
6057 return (0);
6058
6059 (void) fprintf(stderr, gettext("cannot share '%s': "
6060 "legacy share\n"), zfs_get_name(zhp));
6061 (void) fprintf(stderr, gettext("use share(1M) to "
6062 "share this filesystem, or set "
6063 "sharenfs property on\n"));
6064 return (1);
6065 }
6066
6067 /*
6068 * We cannot share or mount legacy filesystems. If the
6069 * shareopts is non-legacy but the mountpoint is legacy, we
6070 * treat it as a legacy share.
6071 */
6072 if (strcmp(mountpoint, "legacy") == 0) {
6073 if (!explicit)
6074 return (0);
6075
6076 (void) fprintf(stderr, gettext("cannot %s '%s': "
6077 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
6078 (void) fprintf(stderr, gettext("use %s(1M) to "
6079 "%s this filesystem\n"), cmdname, cmdname);
6080 return (1);
6081 }
6082
6083 if (strcmp(mountpoint, "none") == 0) {
6084 if (!explicit)
6085 return (0);
6086
6087 (void) fprintf(stderr, gettext("cannot %s '%s': no "
6088 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
6089 return (1);
6090 }
6091
6092 /*
6093 * canmount explicit outcome
6094 * on no pass through
6095 * on yes pass through
6096 * off no return 0
6097 * off yes display error, return 1
6098 * noauto no return 0
6099 * noauto yes pass through
6100 */
6101 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
6102 if (canmount == ZFS_CANMOUNT_OFF) {
6103 if (!explicit)
6104 return (0);
6105
6106 (void) fprintf(stderr, gettext("cannot %s '%s': "
6107 "'canmount' property is set to 'off'\n"), cmdname,
6108 zfs_get_name(zhp));
6109 return (1);
6110 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
6111 return (0);
6112 }
6113
6114 /*
6115 * If this filesystem is inconsistent and has a receive resume
6116 * token, we can not mount it.
6117 */
6118 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
6119 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
6120 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
6121 if (!explicit)
6122 return (0);
6123
6124 (void) fprintf(stderr, gettext("cannot %s '%s': "
6125 "Contains partially-completed state from "
6126 "\"zfs receive -s\", which can be resumed with "
6127 "\"zfs send -t\"\n"),
6128 cmdname, zfs_get_name(zhp));
6129 return (1);
6130 }
6131
6132 /*
6133 * At this point, we have verified that the mountpoint and/or
6134 * shareopts are appropriate for auto management. If the
6135 * filesystem is already mounted or shared, return (failing
6136 * for explicit requests); otherwise mount or share the
6137 * filesystem.
6138 */
6139 switch (op) {
6140 case OP_SHARE:
6141
6142 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
6143 shared_smb = zfs_is_shared_smb(zhp, NULL);
6144
6145 if ((shared_nfs && shared_smb) ||
6146 (shared_nfs && strcmp(shareopts, "on") == 0 &&
6147 strcmp(smbshareopts, "off") == 0) ||
6148 (shared_smb && strcmp(smbshareopts, "on") == 0 &&
6149 strcmp(shareopts, "off") == 0)) {
6150 if (!explicit)
6151 return (0);
6152
6153 (void) fprintf(stderr, gettext("cannot share "
6154 "'%s': filesystem already shared\n"),
6155 zfs_get_name(zhp));
6156 return (1);
6157 }
6158
6159 if (!zfs_is_mounted(zhp, NULL) &&
6160 zfs_mount(zhp, NULL, flags) != 0)
6161 return (1);
6162
6163 if (protocol == NULL) {
6164 if (zfs_shareall(zhp) != 0)
6165 return (1);
6166 } else if (strcmp(protocol, "nfs") == 0) {
6167 if (zfs_share_nfs(zhp))
6168 return (1);
6169 } else if (strcmp(protocol, "smb") == 0) {
6170 if (zfs_share_smb(zhp))
6171 return (1);
6172 } else {
6173 (void) fprintf(stderr, gettext("cannot share "
6174 "'%s': invalid share type '%s' "
6175 "specified\n"),
6176 zfs_get_name(zhp), protocol);
6177 return (1);
6178 }
6179
6180 break;
6181
6182 case OP_MOUNT:
6183 if (options == NULL)
6184 mnt.mnt_mntopts = "";
6185 else
6186 mnt.mnt_mntopts = (char *)options;
6187
6188 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
6189 zfs_is_mounted(zhp, NULL)) {
6190 if (!explicit)
6191 return (0);
6192
6193 (void) fprintf(stderr, gettext("cannot mount "
6194 "'%s': filesystem already mounted\n"),
6195 zfs_get_name(zhp));
6196 return (1);
6197 }
6198
6199 if (zfs_mount(zhp, options, flags) != 0)
6200 return (1);
6201 break;
6202 }
6203
6204 return (0);
6205 }
6206
6207 /*
6208 * Reports progress in the form "(current/total)". Not thread-safe.
6209 */
6210 static void
6211 report_mount_progress(int current, int total)
6212 {
6213 static time_t last_progress_time = 0;
6214 time_t now = time(NULL);
6215 char info[32];
6216
6217 /* report 1..n instead of 0..n-1 */
6218 ++current;
6219
6220 /* display header if we're here for the first time */
6221 if (current == 1) {
6222 set_progress_header(gettext("Mounting ZFS filesystems"));
6223 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6224 /* too soon to report again */
6225 return;
6226 }
6227
6228 last_progress_time = now;
6229
6230 (void) sprintf(info, "(%d/%d)", current, total);
6231
6232 if (current == total)
6233 finish_progress(info);
6234 else
6235 update_progress(info);
6236 }
6237
6238 static void
6239 append_options(char *mntopts, char *newopts)
6240 {
6241 int len = strlen(mntopts);
6242
6243 /* original length plus new string to append plus 1 for the comma */
6244 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6245 (void) fprintf(stderr, gettext("the opts argument for "
6246 "'%s' option is too long (more than %d chars)\n"),
6247 "-o", MNT_LINE_MAX);
6248 usage(B_FALSE);
6249 }
6250
6251 if (*mntopts)
6252 mntopts[len++] = ',';
6253
6254 (void) strcpy(&mntopts[len], newopts);
6255 }
6256
6257 static int
6258 share_mount(int op, int argc, char **argv)
6259 {
6260 int do_all = 0;
6261 boolean_t verbose = B_FALSE;
6262 int c, ret = 0;
6263 char *options = NULL;
6264 int flags = 0;
6265
6266 /* check options */
6267 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:O" : "al"))
6268 != -1) {
6269 switch (c) {
6270 case 'a':
6271 do_all = 1;
6272 break;
6273 case 'v':
6274 verbose = B_TRUE;
6275 break;
6276 case 'l':
6277 flags |= MS_CRYPT;
6278 break;
6279 case 'o':
6280 if (*optarg == '\0') {
6281 (void) fprintf(stderr, gettext("empty mount "
6282 "options (-o) specified\n"));
6283 usage(B_FALSE);
6284 }
6285
6286 if (options == NULL)
6287 options = safe_malloc(MNT_LINE_MAX + 1);
6288
6289 /* option validation is done later */
6290 append_options(options, optarg);
6291 break;
6292 case 'O':
6293 flags |= MS_OVERLAY;
6294 break;
6295 case ':':
6296 (void) fprintf(stderr, gettext("missing argument for "
6297 "'%c' option\n"), optopt);
6298 usage(B_FALSE);
6299 break;
6300 case '?':
6301 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6302 optopt);
6303 usage(B_FALSE);
6304 }
6305 }
6306
6307 argc -= optind;
6308 argv += optind;
6309
6310 /* check number of arguments */
6311 if (do_all) {
6312 zfs_handle_t **dslist = NULL;
6313 size_t i, count = 0;
6314 char *protocol = NULL;
6315
6316 if (op == OP_SHARE && argc > 0) {
6317 if (strcmp(argv[0], "nfs") != 0 &&
6318 strcmp(argv[0], "smb") != 0) {
6319 (void) fprintf(stderr, gettext("share type "
6320 "must be 'nfs' or 'smb'\n"));
6321 usage(B_FALSE);
6322 }
6323 protocol = argv[0];
6324 argc--;
6325 argv++;
6326 }
6327
6328 if (argc != 0) {
6329 (void) fprintf(stderr, gettext("too many arguments\n"));
6330 usage(B_FALSE);
6331 }
6332
6333 start_progress_timer();
6334 get_all_datasets(&dslist, &count, verbose);
6335
6336 if (count == 0) {
6337 if (options != NULL)
6338 free(options);
6339 return (0);
6340 }
6341
6342 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
6343
6344 for (i = 0; i < count; i++) {
6345 if (verbose)
6346 report_mount_progress(i, count);
6347
6348 if (share_mount_one(dslist[i], op, flags, protocol,
6349 B_FALSE, options) != 0)
6350 ret = 1;
6351 zfs_close(dslist[i]);
6352 }
6353
6354 free(dslist);
6355 } else if (argc == 0) {
6356 struct mnttab entry;
6357
6358 if ((op == OP_SHARE) || (options != NULL)) {
6359 (void) fprintf(stderr, gettext("missing filesystem "
6360 "argument (specify -a for all)\n"));
6361 usage(B_FALSE);
6362 }
6363
6364 /*
6365 * When mount is given no arguments, go through
6366 * /proc/self/mounts and display any active ZFS mounts.
6367 * We hide any snapshots, since they are controlled
6368 * automatically.
6369 */
6370
6371 /* Reopen MNTTAB to prevent reading stale data from open file */
6372 if (freopen(MNTTAB, "r", mnttab_file) == NULL) {
6373 if (options != NULL)
6374 free(options);
6375 return (ENOENT);
6376 }
6377
6378 while (getmntent(mnttab_file, &entry) == 0) {
6379 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6380 strchr(entry.mnt_special, '@') != NULL)
6381 continue;
6382
6383 (void) printf("%-30s %s\n", entry.mnt_special,
6384 entry.mnt_mountp);
6385 }
6386
6387 } else {
6388 zfs_handle_t *zhp;
6389
6390 if (argc > 1) {
6391 (void) fprintf(stderr,
6392 gettext("too many arguments\n"));
6393 usage(B_FALSE);
6394 }
6395
6396 if ((zhp = zfs_open(g_zfs, argv[0],
6397 ZFS_TYPE_FILESYSTEM)) == NULL) {
6398 ret = 1;
6399 } else {
6400 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6401 options);
6402 zfs_close(zhp);
6403 }
6404 }
6405
6406 if (options != NULL)
6407 free(options);
6408
6409 return (ret);
6410 }
6411
6412 /*
6413 * zfs mount -a [nfs]
6414 * zfs mount filesystem
6415 *
6416 * Mount all filesystems, or mount the given filesystem.
6417 */
6418 static int
6419 zfs_do_mount(int argc, char **argv)
6420 {
6421 return (share_mount(OP_MOUNT, argc, argv));
6422 }
6423
6424 /*
6425 * zfs share -a [nfs | smb]
6426 * zfs share filesystem
6427 *
6428 * Share all filesystems, or share the given filesystem.
6429 */
6430 static int
6431 zfs_do_share(int argc, char **argv)
6432 {
6433 return (share_mount(OP_SHARE, argc, argv));
6434 }
6435
6436 typedef struct unshare_unmount_node {
6437 zfs_handle_t *un_zhp;
6438 char *un_mountp;
6439 uu_avl_node_t un_avlnode;
6440 } unshare_unmount_node_t;
6441
6442 /* ARGSUSED */
6443 static int
6444 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6445 {
6446 const unshare_unmount_node_t *l = larg;
6447 const unshare_unmount_node_t *r = rarg;
6448
6449 return (strcmp(l->un_mountp, r->un_mountp));
6450 }
6451
6452 /*
6453 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6454 * absolute path, find the entry /proc/self/mounts, verify that its a
6455 * ZFS filesystems, and unmount it appropriately.
6456 */
6457 static int
6458 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6459 {
6460 zfs_handle_t *zhp;
6461 int ret = 0;
6462 struct stat64 statbuf;
6463 struct extmnttab entry;
6464 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6465 ino_t path_inode;
6466
6467 /*
6468 * Search for the path in /proc/self/mounts. Rather than looking for the
6469 * specific path, which can be fooled by non-standard paths (i.e. ".."
6470 * or "//"), we stat() the path and search for the corresponding
6471 * (major,minor) device pair.
6472 */
6473 if (stat64(path, &statbuf) != 0) {
6474 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6475 cmdname, path, strerror(errno));
6476 return (1);
6477 }
6478 path_inode = statbuf.st_ino;
6479
6480 /*
6481 * Search for the given (major,minor) pair in the mount table.
6482 */
6483
6484 /* Reopen MNTTAB to prevent reading stale data from open file */
6485 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6486 return (ENOENT);
6487
6488 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6489 if (entry.mnt_major == major(statbuf.st_dev) &&
6490 entry.mnt_minor == minor(statbuf.st_dev))
6491 break;
6492 }
6493 if (ret != 0) {
6494 if (op == OP_SHARE) {
6495 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6496 "currently mounted\n"), cmdname, path);
6497 return (1);
6498 }
6499 (void) fprintf(stderr, gettext("warning: %s not in"
6500 "/proc/self/mounts\n"), path);
6501 if ((ret = umount2(path, flags)) != 0)
6502 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6503 strerror(errno));
6504 return (ret != 0);
6505 }
6506
6507 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6508 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6509 "filesystem\n"), cmdname, path);
6510 return (1);
6511 }
6512
6513 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6514 ZFS_TYPE_FILESYSTEM)) == NULL)
6515 return (1);
6516
6517 ret = 1;
6518 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6519 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6520 cmdname, path, strerror(errno));
6521 goto out;
6522 } else if (statbuf.st_ino != path_inode) {
6523 (void) fprintf(stderr, gettext("cannot "
6524 "%s '%s': not a mountpoint\n"), cmdname, path);
6525 goto out;
6526 }
6527
6528 if (op == OP_SHARE) {
6529 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6530 char smbshare_prop[ZFS_MAXPROPLEN];
6531
6532 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6533 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6534 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6535 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6536
6537 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6538 strcmp(smbshare_prop, "off") == 0) {
6539 (void) fprintf(stderr, gettext("cannot unshare "
6540 "'%s': legacy share\n"), path);
6541 (void) fprintf(stderr, gettext("use exportfs(8) "
6542 "or smbcontrol(1) to unshare this filesystem\n"));
6543 } else if (!zfs_is_shared(zhp)) {
6544 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6545 "not currently shared\n"), path);
6546 } else {
6547 ret = zfs_unshareall_bypath(zhp, path);
6548 }
6549 } else {
6550 char mtpt_prop[ZFS_MAXPROPLEN];
6551
6552 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6553 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6554
6555 if (is_manual) {
6556 ret = zfs_unmount(zhp, NULL, flags);
6557 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6558 (void) fprintf(stderr, gettext("cannot unmount "
6559 "'%s': legacy mountpoint\n"),
6560 zfs_get_name(zhp));
6561 (void) fprintf(stderr, gettext("use umount(8) "
6562 "to unmount this filesystem\n"));
6563 } else {
6564 ret = zfs_unmountall(zhp, flags);
6565 }
6566 }
6567
6568 out:
6569 zfs_close(zhp);
6570
6571 return (ret != 0);
6572 }
6573
6574 /*
6575 * Generic callback for unsharing or unmounting a filesystem.
6576 */
6577 static int
6578 unshare_unmount(int op, int argc, char **argv)
6579 {
6580 int do_all = 0;
6581 int flags = 0;
6582 int ret = 0;
6583 int c;
6584 zfs_handle_t *zhp;
6585 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6586 char sharesmb[ZFS_MAXPROPLEN];
6587
6588 /* check options */
6589 while ((c = getopt(argc, argv, op == OP_SHARE ? ":a" : "af")) != -1) {
6590 switch (c) {
6591 case 'a':
6592 do_all = 1;
6593 break;
6594 case 'f':
6595 flags = MS_FORCE;
6596 break;
6597 case ':':
6598 (void) fprintf(stderr, gettext("missing argument for "
6599 "'%c' option\n"), optopt);
6600 usage(B_FALSE);
6601 break;
6602 case '?':
6603 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6604 optopt);
6605 usage(B_FALSE);
6606 }
6607 }
6608
6609 argc -= optind;
6610 argv += optind;
6611
6612 if (do_all) {
6613 /*
6614 * We could make use of zfs_for_each() to walk all datasets in
6615 * the system, but this would be very inefficient, especially
6616 * since we would have to linearly search /proc/self/mounts for
6617 * each one. Instead, do one pass through /proc/self/mounts
6618 * looking for zfs entries and call zfs_unmount() for each one.
6619 *
6620 * Things get a little tricky if the administrator has created
6621 * mountpoints beneath other ZFS filesystems. In this case, we
6622 * have to unmount the deepest filesystems first. To accomplish
6623 * this, we place all the mountpoints in an AVL tree sorted by
6624 * the special type (dataset name), and walk the result in
6625 * reverse to make sure to get any snapshots first.
6626 */
6627 struct mnttab entry;
6628 uu_avl_pool_t *pool;
6629 uu_avl_t *tree = NULL;
6630 unshare_unmount_node_t *node;
6631 uu_avl_index_t idx;
6632 uu_avl_walk_t *walk;
6633 char *protocol = NULL;
6634
6635 if (op == OP_SHARE && argc > 0) {
6636 if (strcmp(argv[0], "nfs") != 0 &&
6637 strcmp(argv[0], "smb") != 0) {
6638 (void) fprintf(stderr, gettext("share type "
6639 "must be 'nfs' or 'smb'\n"));
6640 usage(B_FALSE);
6641 }
6642 protocol = argv[0];
6643 argc--;
6644 argv++;
6645 }
6646
6647 if (argc != 0) {
6648 (void) fprintf(stderr, gettext("too many arguments\n"));
6649 usage(B_FALSE);
6650 }
6651
6652 if (((pool = uu_avl_pool_create("unmount_pool",
6653 sizeof (unshare_unmount_node_t),
6654 offsetof(unshare_unmount_node_t, un_avlnode),
6655 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6656 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6657 nomem();
6658
6659 /* Reopen MNTTAB to prevent reading stale data from open file */
6660 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6661 return (ENOENT);
6662
6663 while (getmntent(mnttab_file, &entry) == 0) {
6664
6665 /* ignore non-ZFS entries */
6666 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6667 continue;
6668
6669 /* ignore snapshots */
6670 if (strchr(entry.mnt_special, '@') != NULL)
6671 continue;
6672
6673 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6674 ZFS_TYPE_FILESYSTEM)) == NULL) {
6675 ret = 1;
6676 continue;
6677 }
6678
6679 /*
6680 * Ignore datasets that are excluded/restricted by
6681 * parent pool name.
6682 */
6683 if (zpool_skip_pool(zfs_get_pool_name(zhp))) {
6684 zfs_close(zhp);
6685 continue;
6686 }
6687
6688 switch (op) {
6689 case OP_SHARE:
6690 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6691 nfs_mnt_prop,
6692 sizeof (nfs_mnt_prop),
6693 NULL, NULL, 0, B_FALSE) == 0);
6694 if (strcmp(nfs_mnt_prop, "off") != 0)
6695 break;
6696 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6697 nfs_mnt_prop,
6698 sizeof (nfs_mnt_prop),
6699 NULL, NULL, 0, B_FALSE) == 0);
6700 if (strcmp(nfs_mnt_prop, "off") == 0)
6701 continue;
6702 break;
6703 case OP_MOUNT:
6704 /* Ignore legacy mounts */
6705 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6706 nfs_mnt_prop,
6707 sizeof (nfs_mnt_prop),
6708 NULL, NULL, 0, B_FALSE) == 0);
6709 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6710 continue;
6711 /* Ignore canmount=noauto mounts */
6712 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6713 ZFS_CANMOUNT_NOAUTO)
6714 continue;
6715 default:
6716 break;
6717 }
6718
6719 node = safe_malloc(sizeof (unshare_unmount_node_t));
6720 node->un_zhp = zhp;
6721 node->un_mountp = safe_strdup(entry.mnt_mountp);
6722
6723 uu_avl_node_init(node, &node->un_avlnode, pool);
6724
6725 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6726 uu_avl_insert(tree, node, idx);
6727 } else {
6728 zfs_close(node->un_zhp);
6729 free(node->un_mountp);
6730 free(node);
6731 }
6732 }
6733
6734 /*
6735 * Walk the AVL tree in reverse, unmounting each filesystem and
6736 * removing it from the AVL tree in the process.
6737 */
6738 if ((walk = uu_avl_walk_start(tree,
6739 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6740 nomem();
6741
6742 while ((node = uu_avl_walk_next(walk)) != NULL) {
6743 uu_avl_remove(tree, node);
6744
6745 switch (op) {
6746 case OP_SHARE:
6747 if (zfs_unshareall_bytype(node->un_zhp,
6748 node->un_mountp, protocol) != 0)
6749 ret = 1;
6750 break;
6751
6752 case OP_MOUNT:
6753 if (zfs_unmount(node->un_zhp,
6754 node->un_zhp->zfs_name, flags) != 0)
6755 ret = 1;
6756 break;
6757 }
6758
6759 zfs_close(node->un_zhp);
6760 free(node->un_mountp);
6761 free(node);
6762 }
6763
6764 uu_avl_walk_end(walk);
6765 uu_avl_destroy(tree);
6766 uu_avl_pool_destroy(pool);
6767
6768 } else {
6769 if (argc != 1) {
6770 if (argc == 0)
6771 (void) fprintf(stderr,
6772 gettext("missing filesystem argument\n"));
6773 else
6774 (void) fprintf(stderr,
6775 gettext("too many arguments\n"));
6776 usage(B_FALSE);
6777 }
6778
6779 /*
6780 * We have an argument, but it may be a full path or a ZFS
6781 * filesystem. Pass full paths off to unmount_path() (shared by
6782 * manual_unmount), otherwise open the filesystem and pass to
6783 * zfs_unmount().
6784 */
6785 if (argv[0][0] == '/')
6786 return (unshare_unmount_path(op, argv[0],
6787 flags, B_FALSE));
6788
6789 if ((zhp = zfs_open(g_zfs, argv[0],
6790 ZFS_TYPE_FILESYSTEM)) == NULL)
6791 return (1);
6792
6793 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6794 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6795 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6796 NULL, 0, B_FALSE) == 0);
6797
6798 switch (op) {
6799 case OP_SHARE:
6800 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6801 nfs_mnt_prop,
6802 sizeof (nfs_mnt_prop),
6803 NULL, NULL, 0, B_FALSE) == 0);
6804 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6805 sharesmb, sizeof (sharesmb), NULL, NULL,
6806 0, B_FALSE) == 0);
6807
6808 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6809 strcmp(sharesmb, "off") == 0) {
6810 (void) fprintf(stderr, gettext("cannot "
6811 "unshare '%s': legacy share\n"),
6812 zfs_get_name(zhp));
6813 (void) fprintf(stderr, gettext("use "
6814 "unshare(1M) to unshare this "
6815 "filesystem\n"));
6816 ret = 1;
6817 } else if (!zfs_is_shared(zhp)) {
6818 (void) fprintf(stderr, gettext("cannot "
6819 "unshare '%s': not currently "
6820 "shared\n"), zfs_get_name(zhp));
6821 ret = 1;
6822 } else if (zfs_unshareall(zhp) != 0) {
6823 ret = 1;
6824 }
6825 break;
6826
6827 case OP_MOUNT:
6828 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6829 (void) fprintf(stderr, gettext("cannot "
6830 "unmount '%s': legacy "
6831 "mountpoint\n"), zfs_get_name(zhp));
6832 (void) fprintf(stderr, gettext("use "
6833 "umount(1M) to unmount this "
6834 "filesystem\n"));
6835 ret = 1;
6836 } else if (!zfs_is_mounted(zhp, NULL)) {
6837 (void) fprintf(stderr, gettext("cannot "
6838 "unmount '%s': not currently "
6839 "mounted\n"),
6840 zfs_get_name(zhp));
6841 ret = 1;
6842 } else if (zfs_unmountall(zhp, flags) != 0) {
6843 ret = 1;
6844 }
6845 break;
6846 }
6847
6848 zfs_close(zhp);
6849 }
6850
6851 return (ret);
6852 }
6853
6854 /*
6855 * zfs unmount -a
6856 * zfs unmount filesystem
6857 *
6858 * Unmount all filesystems, or a specific ZFS filesystem.
6859 */
6860 static int
6861 zfs_do_unmount(int argc, char **argv)
6862 {
6863 return (unshare_unmount(OP_MOUNT, argc, argv));
6864 }
6865
6866 /*
6867 * zfs unshare -a
6868 * zfs unshare filesystem
6869 *
6870 * Unshare all filesystems, or a specific ZFS filesystem.
6871 */
6872 static int
6873 zfs_do_unshare(int argc, char **argv)
6874 {
6875 return (unshare_unmount(OP_SHARE, argc, argv));
6876 }
6877
6878 static int
6879 find_command_idx(char *command, int *idx)
6880 {
6881 int i;
6882
6883 for (i = 0; i < NCOMMAND; i++) {
6884 if (command_table[i].name == NULL)
6885 continue;
6886
6887 if (strcmp(command, command_table[i].name) == 0) {
6888 *idx = i;
6889 return (0);
6890 }
6891 }
6892 return (1);
6893 }
6894
6895 static int
6896 zfs_do_diff(int argc, char **argv)
6897 {
6898 zfs_handle_t *zhp;
6899 int flags = 0;
6900 char *tosnap = NULL;
6901 char *fromsnap = NULL;
6902 char *atp, *copy;
6903 int err = 0;
6904 int c;
6905
6906 while ((c = getopt(argc, argv, "FHt")) != -1) {
6907 switch (c) {
6908 case 'F':
6909 flags |= ZFS_DIFF_CLASSIFY;
6910 break;
6911 case 'H':
6912 flags |= ZFS_DIFF_PARSEABLE;
6913 break;
6914 case 't':
6915 flags |= ZFS_DIFF_TIMESTAMP;
6916 break;
6917 default:
6918 (void) fprintf(stderr,
6919 gettext("invalid option '%c'\n"), optopt);
6920 usage(B_FALSE);
6921 }
6922 }
6923
6924 argc -= optind;
6925 argv += optind;
6926
6927 if (argc < 1) {
6928 (void) fprintf(stderr,
6929 gettext("must provide at least one snapshot name\n"));
6930 usage(B_FALSE);
6931 }
6932
6933 if (argc > 2) {
6934 (void) fprintf(stderr, gettext("too many arguments\n"));
6935 usage(B_FALSE);
6936 }
6937
6938 fromsnap = argv[0];
6939 tosnap = (argc == 2) ? argv[1] : NULL;
6940
6941 copy = NULL;
6942 if (*fromsnap != '@')
6943 copy = strdup(fromsnap);
6944 else if (tosnap)
6945 copy = strdup(tosnap);
6946 if (copy == NULL)
6947 usage(B_FALSE);
6948
6949 if ((atp = strchr(copy, '@')) != NULL)
6950 *atp = '\0';
6951
6952 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) {
6953 free(copy);
6954 return (1);
6955 }
6956 free(copy);
6957
6958 /*
6959 * Ignore SIGPIPE so that the library can give us
6960 * information on any failure
6961 */
6962 (void) sigignore(SIGPIPE);
6963
6964 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6965
6966 zfs_close(zhp);
6967
6968 return (err != 0);
6969 }
6970
6971 /*
6972 * zfs bookmark <fs@snap> <fs#bmark>
6973 *
6974 * Creates a bookmark with the given name from the given snapshot.
6975 */
6976 static int
6977 zfs_do_bookmark(int argc, char **argv)
6978 {
6979 char snapname[ZFS_MAX_DATASET_NAME_LEN];
6980 char bookname[ZFS_MAX_DATASET_NAME_LEN];
6981 zfs_handle_t *zhp;
6982 nvlist_t *nvl;
6983 int ret = 0;
6984 int c;
6985
6986 /* check options */
6987 while ((c = getopt(argc, argv, "")) != -1) {
6988 switch (c) {
6989 case '?':
6990 (void) fprintf(stderr,
6991 gettext("invalid option '%c'\n"), optopt);
6992 goto usage;
6993 }
6994 }
6995
6996 argc -= optind;
6997 argv += optind;
6998
6999 /* check number of arguments */
7000 if (argc < 1) {
7001 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
7002 goto usage;
7003 }
7004 if (argc < 2) {
7005 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
7006 goto usage;
7007 }
7008
7009 if (strchr(argv[1], '#') == NULL) {
7010 (void) fprintf(stderr,
7011 gettext("invalid bookmark name '%s': "
7012 "must contain a '#'\n"), argv[1]);
7013 goto usage;
7014 }
7015
7016 if (argv[0][0] == '@') {
7017 /*
7018 * Snapshot name begins with @.
7019 * Default to same fs as bookmark.
7020 */
7021 (void) strlcpy(snapname, argv[1], sizeof (snapname));
7022 *strchr(snapname, '#') = '\0';
7023 (void) strlcat(snapname, argv[0], sizeof (snapname));
7024 } else {
7025 (void) strlcpy(snapname, argv[0], sizeof (snapname));
7026 }
7027 if (argv[1][0] == '#') {
7028 /*
7029 * Bookmark name begins with #.
7030 * Default to same fs as snapshot.
7031 */
7032 (void) strlcpy(bookname, argv[0], sizeof (bookname));
7033 *strchr(bookname, '@') = '\0';
7034 (void) strlcat(bookname, argv[1], sizeof (bookname));
7035 } else {
7036 (void) strlcpy(bookname, argv[1], sizeof (bookname));
7037 }
7038
7039 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
7040 if (zhp == NULL)
7041 goto usage;
7042 zfs_close(zhp);
7043
7044
7045 nvl = fnvlist_alloc();
7046 fnvlist_add_string(nvl, bookname, snapname);
7047 ret = lzc_bookmark(nvl, NULL);
7048 fnvlist_free(nvl);
7049
7050 if (ret != 0) {
7051 const char *err_msg;
7052 char errbuf[1024];
7053
7054 (void) snprintf(errbuf, sizeof (errbuf),
7055 dgettext(TEXT_DOMAIN,
7056 "cannot create bookmark '%s'"), bookname);
7057
7058 switch (ret) {
7059 case EXDEV:
7060 err_msg = "bookmark is in a different pool";
7061 break;
7062 case EEXIST:
7063 err_msg = "bookmark exists";
7064 break;
7065 case EINVAL:
7066 err_msg = "invalid argument";
7067 break;
7068 case ENOTSUP:
7069 err_msg = "bookmark feature not enabled";
7070 break;
7071 case ENOSPC:
7072 err_msg = "out of space";
7073 break;
7074 case ENOENT:
7075 err_msg = "dataset does not exist";
7076 break;
7077 default:
7078 err_msg = "unknown error";
7079 break;
7080 }
7081 (void) fprintf(stderr, "%s: %s\n", errbuf,
7082 dgettext(TEXT_DOMAIN, err_msg));
7083 }
7084
7085 return (ret != 0);
7086
7087 usage:
7088 usage(B_FALSE);
7089 return (-1);
7090 }
7091
7092 static int
7093 zfs_do_channel_program(int argc, char **argv)
7094 {
7095 int ret, fd, c;
7096 char *progbuf, *filename, *poolname;
7097 size_t progsize, progread;
7098 nvlist_t *outnvl;
7099 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT;
7100 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT;
7101 boolean_t sync_flag = B_TRUE;
7102 zpool_handle_t *zhp;
7103
7104 /* check options */
7105 while ((c = getopt(argc, argv, "nt:m:")) != -1) {
7106 switch (c) {
7107 case 't':
7108 case 'm': {
7109 uint64_t arg;
7110 char *endp;
7111
7112 errno = 0;
7113 arg = strtoull(optarg, &endp, 0);
7114 if (errno != 0 || *endp != '\0') {
7115 (void) fprintf(stderr, gettext(
7116 "invalid argument "
7117 "'%s': expected integer\n"), optarg);
7118 goto usage;
7119 }
7120
7121 if (c == 't') {
7122 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) {
7123 (void) fprintf(stderr, gettext(
7124 "Invalid instruction limit: "
7125 "%s\n"), optarg);
7126 return (1);
7127 } else {
7128 instrlimit = arg;
7129 }
7130 } else {
7131 ASSERT3U(c, ==, 'm');
7132 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) {
7133 (void) fprintf(stderr, gettext(
7134 "Invalid memory limit: "
7135 "%s\n"), optarg);
7136 return (1);
7137 } else {
7138 memlimit = arg;
7139 }
7140 }
7141 break;
7142 }
7143 case 'n': {
7144 sync_flag = B_FALSE;
7145 break;
7146 }
7147 case '?':
7148 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
7149 optopt);
7150 goto usage;
7151 }
7152 }
7153
7154 argc -= optind;
7155 argv += optind;
7156
7157 if (argc < 2) {
7158 (void) fprintf(stderr,
7159 gettext("invalid number of arguments\n"));
7160 goto usage;
7161 }
7162
7163 poolname = argv[0];
7164 filename = argv[1];
7165 if (strcmp(filename, "-") == 0) {
7166 fd = 0;
7167 filename = "standard input";
7168 } else if ((fd = open(filename, O_RDONLY)) < 0) {
7169 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"),
7170 filename, strerror(errno));
7171 return (1);
7172 }
7173
7174 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
7175 (void) fprintf(stderr, gettext("cannot open pool '%s'"),
7176 poolname);
7177 return (1);
7178 }
7179 zpool_close(zhp);
7180
7181 /*
7182 * Read in the channel program, expanding the program buffer as
7183 * necessary.
7184 */
7185 progread = 0;
7186 progsize = 1024;
7187 progbuf = safe_malloc(progsize);
7188 do {
7189 ret = read(fd, progbuf + progread, progsize - progread);
7190 progread += ret;
7191 if (progread == progsize && ret > 0) {
7192 progsize *= 2;
7193 progbuf = safe_realloc(progbuf, progsize);
7194 }
7195 } while (ret > 0);
7196
7197 if (fd != 0)
7198 (void) close(fd);
7199 if (ret < 0) {
7200 free(progbuf);
7201 (void) fprintf(stderr,
7202 gettext("cannot read '%s': %s\n"),
7203 filename, strerror(errno));
7204 return (1);
7205 }
7206 progbuf[progread] = '\0';
7207
7208 /*
7209 * Any remaining arguments are passed as arguments to the lua script as
7210 * a string array:
7211 * {
7212 * "argv" -> [ "arg 1", ... "arg n" ],
7213 * }
7214 */
7215 nvlist_t *argnvl = fnvlist_alloc();
7216 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2);
7217
7218 if (sync_flag) {
7219 ret = lzc_channel_program(poolname, progbuf,
7220 instrlimit, memlimit, argnvl, &outnvl);
7221 } else {
7222 ret = lzc_channel_program_nosync(poolname, progbuf,
7223 instrlimit, memlimit, argnvl, &outnvl);
7224 }
7225
7226 if (ret != 0) {
7227 /*
7228 * On error, report the error message handed back by lua if one
7229 * exists. Otherwise, generate an appropriate error message,
7230 * falling back on strerror() for an unexpected return code.
7231 */
7232 char *errstring = NULL;
7233 uint64_t instructions = 0;
7234 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) {
7235 (void) nvlist_lookup_string(outnvl,
7236 ZCP_RET_ERROR, &errstring);
7237 if (errstring == NULL)
7238 errstring = strerror(ret);
7239 if (ret == ETIME) {
7240 (void) nvlist_lookup_uint64(outnvl,
7241 ZCP_ARG_INSTRLIMIT, &instructions);
7242 }
7243 } else {
7244 switch (ret) {
7245 case EINVAL:
7246 errstring =
7247 "Invalid instruction or memory limit.";
7248 break;
7249 case ENOMEM:
7250 errstring = "Return value too large.";
7251 break;
7252 case ENOSPC:
7253 errstring = "Memory limit exhausted.";
7254 break;
7255 case ETIME:
7256 errstring = "Timed out.";
7257 break;
7258 case EPERM:
7259 errstring = "Permission denied. Channel "
7260 "programs must be run as root.";
7261 break;
7262 default:
7263 errstring = strerror(ret);
7264 }
7265 }
7266 (void) fprintf(stderr,
7267 gettext("Channel program execution failed:\n%s\n"),
7268 errstring);
7269 if (ret == ETIME && instructions != 0)
7270 (void) fprintf(stderr, "%llu Lua instructions\n",
7271 (u_longlong_t)instructions);
7272 } else {
7273 (void) printf("Channel program fully executed ");
7274 if (nvlist_empty(outnvl)) {
7275 (void) printf("with no return value.\n");
7276 } else {
7277 (void) printf("with return value:\n");
7278 dump_nvlist(outnvl, 4);
7279 }
7280 }
7281
7282 free(progbuf);
7283 fnvlist_free(outnvl);
7284 fnvlist_free(argnvl);
7285 return (ret != 0);
7286
7287 usage:
7288 usage(B_FALSE);
7289 return (-1);
7290 }
7291
7292
7293 typedef struct loadkey_cbdata {
7294 boolean_t cb_loadkey;
7295 boolean_t cb_recursive;
7296 boolean_t cb_noop;
7297 char *cb_keylocation;
7298 uint64_t cb_numfailed;
7299 uint64_t cb_numattempted;
7300 } loadkey_cbdata_t;
7301
7302 static int
7303 load_key_callback(zfs_handle_t *zhp, void *data)
7304 {
7305 int ret;
7306 boolean_t is_encroot;
7307 loadkey_cbdata_t *cb = data;
7308 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
7309
7310 /*
7311 * If we are working recursively, we want to skip loading / unloading
7312 * keys for non-encryption roots and datasets whose keys are already
7313 * in the desired end-state.
7314 */
7315 if (cb->cb_recursive) {
7316 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL);
7317 if (ret != 0)
7318 return (ret);
7319 if (!is_encroot)
7320 return (0);
7321
7322 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) ||
7323 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE))
7324 return (0);
7325 }
7326
7327 cb->cb_numattempted++;
7328
7329 if (cb->cb_loadkey)
7330 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation);
7331 else
7332 ret = zfs_crypto_unload_key(zhp);
7333
7334 if (ret != 0) {
7335 cb->cb_numfailed++;
7336 return (ret);
7337 }
7338
7339 return (0);
7340 }
7341
7342 static int
7343 load_unload_keys(int argc, char **argv, boolean_t loadkey)
7344 {
7345 int c, ret = 0, flags = 0;
7346 boolean_t do_all = B_FALSE;
7347 loadkey_cbdata_t cb = { 0 };
7348
7349 cb.cb_loadkey = loadkey;
7350
7351 while ((c = getopt(argc, argv, "anrL:")) != -1) {
7352 /* noop and alternate keylocations only apply to zfs load-key */
7353 if (loadkey) {
7354 switch (c) {
7355 case 'n':
7356 cb.cb_noop = B_TRUE;
7357 continue;
7358 case 'L':
7359 cb.cb_keylocation = optarg;
7360 continue;
7361 default:
7362 break;
7363 }
7364 }
7365
7366 switch (c) {
7367 case 'a':
7368 do_all = B_TRUE;
7369 cb.cb_recursive = B_TRUE;
7370 break;
7371 case 'r':
7372 flags |= ZFS_ITER_RECURSE;
7373 cb.cb_recursive = B_TRUE;
7374 break;
7375 default:
7376 (void) fprintf(stderr,
7377 gettext("invalid option '%c'\n"), optopt);
7378 usage(B_FALSE);
7379 }
7380 }
7381
7382 argc -= optind;
7383 argv += optind;
7384
7385 if (!do_all && argc == 0) {
7386 (void) fprintf(stderr,
7387 gettext("Missing dataset argument or -a option\n"));
7388 usage(B_FALSE);
7389 }
7390
7391 if (do_all && argc != 0) {
7392 (void) fprintf(stderr,
7393 gettext("Cannot specify dataset with -a option\n"));
7394 usage(B_FALSE);
7395 }
7396
7397 if (cb.cb_recursive && cb.cb_keylocation != NULL &&
7398 strcmp(cb.cb_keylocation, "prompt") != 0) {
7399 (void) fprintf(stderr, gettext("alternate keylocation may only "
7400 "be 'prompt' with -r or -a\n"));
7401 usage(B_FALSE);
7402 }
7403
7404 ret = zfs_for_each(argc, argv, flags,
7405 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0,
7406 load_key_callback, &cb);
7407
7408 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) {
7409 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"),
7410 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed),
7411 (u_longlong_t)cb.cb_numattempted,
7412 loadkey ? (cb.cb_noop ? "verified" : "loaded") :
7413 "unloaded");
7414 }
7415
7416 if (cb.cb_numfailed != 0)
7417 ret = -1;
7418
7419 return (ret);
7420 }
7421
7422 static int
7423 zfs_do_load_key(int argc, char **argv)
7424 {
7425 return (load_unload_keys(argc, argv, B_TRUE));
7426 }
7427
7428
7429 static int
7430 zfs_do_unload_key(int argc, char **argv)
7431 {
7432 return (load_unload_keys(argc, argv, B_FALSE));
7433 }
7434
7435 static int
7436 zfs_do_change_key(int argc, char **argv)
7437 {
7438 int c, ret;
7439 uint64_t keystatus;
7440 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE;
7441 zfs_handle_t *zhp = NULL;
7442 nvlist_t *props = fnvlist_alloc();
7443
7444 while ((c = getopt(argc, argv, "lio:")) != -1) {
7445 switch (c) {
7446 case 'l':
7447 loadkey = B_TRUE;
7448 break;
7449 case 'i':
7450 inheritkey = B_TRUE;
7451 break;
7452 case 'o':
7453 if (!parseprop(props, optarg)) {
7454 nvlist_free(props);
7455 return (1);
7456 }
7457 break;
7458 default:
7459 (void) fprintf(stderr,
7460 gettext("invalid option '%c'\n"), optopt);
7461 usage(B_FALSE);
7462 }
7463 }
7464
7465 if (inheritkey && !nvlist_empty(props)) {
7466 (void) fprintf(stderr,
7467 gettext("Properties not allowed for inheriting\n"));
7468 usage(B_FALSE);
7469 }
7470
7471 argc -= optind;
7472 argv += optind;
7473
7474 if (argc < 1) {
7475 (void) fprintf(stderr, gettext("Missing dataset argument\n"));
7476 usage(B_FALSE);
7477 }
7478
7479 if (argc > 1) {
7480 (void) fprintf(stderr, gettext("Too many arguments\n"));
7481 usage(B_FALSE);
7482 }
7483
7484 zhp = zfs_open(g_zfs, argv[argc - 1],
7485 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
7486 if (zhp == NULL)
7487 usage(B_FALSE);
7488
7489 if (loadkey) {
7490 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
7491 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) {
7492 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL);
7493 if (ret != 0) {
7494 nvlist_free(props);
7495 zfs_close(zhp);
7496 return (-1);
7497 }
7498 }
7499
7500 /* refresh the properties so the new keystatus is visible */
7501 zfs_refresh_properties(zhp);
7502 }
7503
7504 ret = zfs_crypto_rewrap(zhp, props, inheritkey);
7505 if (ret != 0) {
7506 nvlist_free(props);
7507 zfs_close(zhp);
7508 return (-1);
7509 }
7510
7511 nvlist_free(props);
7512 zfs_close(zhp);
7513 return (0);
7514 }
7515
7516 int
7517 main(int argc, char **argv)
7518 {
7519 int ret = 0;
7520 int i = 0;
7521 char *cmdname;
7522
7523 (void) setlocale(LC_ALL, "");
7524 (void) textdomain(TEXT_DOMAIN);
7525
7526 opterr = 0;
7527
7528 /*
7529 * Make sure the user has specified some command.
7530 */
7531 if (argc < 2) {
7532 (void) fprintf(stderr, gettext("missing command\n"));
7533 usage(B_FALSE);
7534 }
7535
7536 cmdname = argv[1];
7537
7538 /*
7539 * The 'umount' command is an alias for 'unmount'
7540 */
7541 if (strcmp(cmdname, "umount") == 0)
7542 cmdname = "unmount";
7543
7544 /*
7545 * The 'recv' command is an alias for 'receive'
7546 */
7547 if (strcmp(cmdname, "recv") == 0)
7548 cmdname = "receive";
7549
7550 /*
7551 * The 'snap' command is an alias for 'snapshot'
7552 */
7553 if (strcmp(cmdname, "snap") == 0)
7554 cmdname = "snapshot";
7555
7556 /*
7557 * Special case '-?'
7558 */
7559 if ((strcmp(cmdname, "-?") == 0) ||
7560 (strcmp(cmdname, "--help") == 0))
7561 usage(B_TRUE);
7562
7563 if ((g_zfs = libzfs_init()) == NULL) {
7564 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
7565 return (1);
7566 }
7567
7568 mnttab_file = g_zfs->libzfs_mnttab;
7569
7570 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
7571
7572 libzfs_print_on_error(g_zfs, B_TRUE);
7573
7574 /*
7575 * Run the appropriate command.
7576 */
7577 libzfs_mnttab_cache(g_zfs, B_TRUE);
7578 if (find_command_idx(cmdname, &i) == 0) {
7579 current_command = &command_table[i];
7580 ret = command_table[i].func(argc - 1, argv + 1);
7581 } else if (strchr(cmdname, '=') != NULL) {
7582 verify(find_command_idx("set", &i) == 0);
7583 current_command = &command_table[i];
7584 ret = command_table[i].func(argc, argv);
7585 } else {
7586 (void) fprintf(stderr, gettext("unrecognized "
7587 "command '%s'\n"), cmdname);
7588 usage(B_FALSE);
7589 ret = 1;
7590 }
7591
7592 if (ret == 0 && log_history)
7593 (void) zpool_log_history(g_zfs, history_str);
7594
7595 libzfs_fini(g_zfs);
7596
7597 /*
7598 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
7599 * for the purposes of running ::findleaks.
7600 */
7601 if (getenv("ZFS_ABORT") != NULL) {
7602 (void) printf("dumping core by request\n");
7603 abort();
7604 }
7605
7606 return (ret);
7607 }
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