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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, 2018 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 * Copyright (c) 2018 Datto Inc.
31 */
32
33 #include <assert.h>
34 #include <ctype.h>
35 #include <errno.h>
36 #include <getopt.h>
37 #include <libgen.h>
38 #include <libintl.h>
39 #include <libuutil.h>
40 #include <libnvpair.h>
41 #include <locale.h>
42 #include <stddef.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <strings.h>
46 #include <unistd.h>
47 #include <fcntl.h>
48 #include <zone.h>
49 #include <grp.h>
50 #include <pwd.h>
51 #include <signal.h>
52 #include <sys/debug.h>
53 #include <sys/list.h>
54 #include <sys/mkdev.h>
55 #include <sys/mntent.h>
56 #include <sys/mnttab.h>
57 #include <sys/mount.h>
58 #include <sys/stat.h>
59 #include <sys/fs/zfs.h>
60 #include <sys/systeminfo.h>
61 #include <sys/types.h>
62 #include <time.h>
63 #include <sys/zfs_project.h>
64
65 #include <libzfs.h>
66 #include <libzfs_core.h>
67 #include <zfs_prop.h>
68 #include <zfs_deleg.h>
69 #include <libzutil.h>
70 #include <libuutil.h>
71 #ifdef HAVE_IDMAP
72 #include <aclutils.h>
73 #include <directory.h>
74 #endif /* HAVE_IDMAP */
75
76 #include "zfs_iter.h"
77 #include "zfs_util.h"
78 #include "zfs_comutil.h"
79 #include "libzfs_impl.h"
80 #include "zfs_projectutil.h"
81
82 libzfs_handle_t *g_zfs;
83
84 static FILE *mnttab_file;
85 static char history_str[HIS_MAX_RECORD_LEN];
86 static boolean_t log_history = B_TRUE;
87
88 static int zfs_do_clone(int argc, char **argv);
89 static int zfs_do_create(int argc, char **argv);
90 static int zfs_do_destroy(int argc, char **argv);
91 static int zfs_do_get(int argc, char **argv);
92 static int zfs_do_inherit(int argc, char **argv);
93 static int zfs_do_list(int argc, char **argv);
94 static int zfs_do_mount(int argc, char **argv);
95 static int zfs_do_rename(int argc, char **argv);
96 static int zfs_do_rollback(int argc, char **argv);
97 static int zfs_do_set(int argc, char **argv);
98 static int zfs_do_upgrade(int argc, char **argv);
99 static int zfs_do_snapshot(int argc, char **argv);
100 static int zfs_do_unmount(int argc, char **argv);
101 static int zfs_do_share(int argc, char **argv);
102 static int zfs_do_unshare(int argc, char **argv);
103 static int zfs_do_send(int argc, char **argv);
104 static int zfs_do_receive(int argc, char **argv);
105 static int zfs_do_promote(int argc, char **argv);
106 static int zfs_do_userspace(int argc, char **argv);
107 static int zfs_do_allow(int argc, char **argv);
108 static int zfs_do_unallow(int argc, char **argv);
109 static int zfs_do_hold(int argc, char **argv);
110 static int zfs_do_holds(int argc, char **argv);
111 static int zfs_do_release(int argc, char **argv);
112 static int zfs_do_diff(int argc, char **argv);
113 static int zfs_do_bookmark(int argc, char **argv);
114 static int zfs_do_channel_program(int argc, char **argv);
115 static int zfs_do_remap(int argc, char **argv);
116 static int zfs_do_load_key(int argc, char **argv);
117 static int zfs_do_unload_key(int argc, char **argv);
118 static int zfs_do_change_key(int argc, char **argv);
119 static int zfs_do_project(int argc, char **argv);
120
121 /*
122 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
123 */
124
125 #ifdef DEBUG
126 const char *
127 _umem_debug_init(void)
128 {
129 return ("default,verbose"); /* $UMEM_DEBUG setting */
130 }
131
132 const char *
133 _umem_logging_init(void)
134 {
135 return ("fail,contents"); /* $UMEM_LOGGING setting */
136 }
137 #endif
138
139 typedef enum {
140 HELP_CLONE,
141 HELP_CREATE,
142 HELP_DESTROY,
143 HELP_GET,
144 HELP_INHERIT,
145 HELP_UPGRADE,
146 HELP_LIST,
147 HELP_MOUNT,
148 HELP_PROMOTE,
149 HELP_RECEIVE,
150 HELP_RENAME,
151 HELP_ROLLBACK,
152 HELP_SEND,
153 HELP_SET,
154 HELP_SHARE,
155 HELP_SNAPSHOT,
156 HELP_UNMOUNT,
157 HELP_UNSHARE,
158 HELP_ALLOW,
159 HELP_UNALLOW,
160 HELP_USERSPACE,
161 HELP_GROUPSPACE,
162 HELP_PROJECTSPACE,
163 HELP_PROJECT,
164 HELP_HOLD,
165 HELP_HOLDS,
166 HELP_RELEASE,
167 HELP_DIFF,
168 HELP_REMAP,
169 HELP_BOOKMARK,
170 HELP_CHANNEL_PROGRAM,
171 HELP_LOAD_KEY,
172 HELP_UNLOAD_KEY,
173 HELP_CHANGE_KEY,
174 } zfs_help_t;
175
176 typedef struct zfs_command {
177 const char *name;
178 int (*func)(int argc, char **argv);
179 zfs_help_t usage;
180 } zfs_command_t;
181
182 /*
183 * Master command table. Each ZFS command has a name, associated function, and
184 * usage message. The usage messages need to be internationalized, so we have
185 * to have a function to return the usage message based on a command index.
186 *
187 * These commands are organized according to how they are displayed in the usage
188 * message. An empty command (one with a NULL name) indicates an empty line in
189 * the generic usage message.
190 */
191 static zfs_command_t command_table[] = {
192 { "create", zfs_do_create, HELP_CREATE },
193 { "destroy", zfs_do_destroy, HELP_DESTROY },
194 { NULL },
195 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
196 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
197 { "clone", zfs_do_clone, HELP_CLONE },
198 { "promote", zfs_do_promote, HELP_PROMOTE },
199 { "rename", zfs_do_rename, HELP_RENAME },
200 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK },
201 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM },
202 { NULL },
203 { "list", zfs_do_list, HELP_LIST },
204 { NULL },
205 { "set", zfs_do_set, HELP_SET },
206 { "get", zfs_do_get, HELP_GET },
207 { "inherit", zfs_do_inherit, HELP_INHERIT },
208 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
209 { NULL },
210 { "userspace", zfs_do_userspace, HELP_USERSPACE },
211 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
212 { "projectspace", zfs_do_userspace, HELP_PROJECTSPACE },
213 { NULL },
214 { "project", zfs_do_project, HELP_PROJECT },
215 { NULL },
216 { "mount", zfs_do_mount, HELP_MOUNT },
217 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
218 { "share", zfs_do_share, HELP_SHARE },
219 { "unshare", zfs_do_unshare, HELP_UNSHARE },
220 { NULL },
221 { "send", zfs_do_send, HELP_SEND },
222 { "receive", zfs_do_receive, HELP_RECEIVE },
223 { NULL },
224 { "allow", zfs_do_allow, HELP_ALLOW },
225 { NULL },
226 { "unallow", zfs_do_unallow, HELP_UNALLOW },
227 { NULL },
228 { "hold", zfs_do_hold, HELP_HOLD },
229 { "holds", zfs_do_holds, HELP_HOLDS },
230 { "release", zfs_do_release, HELP_RELEASE },
231 { "diff", zfs_do_diff, HELP_DIFF },
232 { "remap", zfs_do_remap, HELP_REMAP },
233 { "load-key", zfs_do_load_key, HELP_LOAD_KEY },
234 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY },
235 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY },
236 };
237
238 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
239
240 zfs_command_t *current_command;
241
242 static const char *
243 get_usage(zfs_help_t idx)
244 {
245 switch (idx) {
246 case HELP_CLONE:
247 return (gettext("\tclone [-p] [-o property=value] ... "
248 "<snapshot> <filesystem|volume>\n"));
249 case HELP_CREATE:
250 return (gettext("\tcreate [-p] [-o property=value] ... "
251 "<filesystem>\n"
252 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
253 "-V <size> <volume>\n"));
254 case HELP_DESTROY:
255 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
256 "\tdestroy [-dnpRrv] "
257 "<filesystem|volume>@<snap>[%<snap>][,...]\n"
258 "\tdestroy <filesystem|volume>#<bookmark>\n"));
259 case HELP_GET:
260 return (gettext("\tget [-rHp] [-d max] "
261 "[-o \"all\" | field[,...]]\n"
262 "\t [-t type[,...]] [-s source[,...]]\n"
263 "\t <\"all\" | property[,...]> "
264 "[filesystem|volume|snapshot|bookmark] ...\n"));
265 case HELP_INHERIT:
266 return (gettext("\tinherit [-rS] <property> "
267 "<filesystem|volume|snapshot> ...\n"));
268 case HELP_UPGRADE:
269 return (gettext("\tupgrade [-v]\n"
270 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
271 case HELP_LIST:
272 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] "
273 "[-s property]...\n\t [-S property]... [-t type[,...]] "
274 "[filesystem|volume|snapshot] ...\n"));
275 case HELP_MOUNT:
276 return (gettext("\tmount\n"
277 "\tmount [-lvO] [-o opts] <-a | filesystem>\n"));
278 case HELP_PROMOTE:
279 return (gettext("\tpromote <clone-filesystem>\n"));
280 case HELP_RECEIVE:
281 return (gettext("\treceive [-vnsFu] "
282 "[-o <property>=<value>] ... [-x <property>] ...\n"
283 "\t <filesystem|volume|snapshot>\n"
284 "\treceive [-vnsFu] [-o <property>=<value>] ... "
285 "[-x <property>] ... \n"
286 "\t [-d | -e] <filesystem>\n"
287 "\treceive -A <filesystem|volume>\n"));
288 case HELP_RENAME:
289 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
290 "<filesystem|volume|snapshot>\n"
291 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
292 "\trename -r <snapshot> <snapshot>\n"));
293 case HELP_ROLLBACK:
294 return (gettext("\trollback [-rRf] <snapshot>\n"));
295 case HELP_SEND:
296 return (gettext("\tsend [-DnPpRvLecwb] [-[i|I] snapshot] "
297 "<snapshot>\n"
298 "\tsend [-nvPLecw] [-i snapshot|bookmark] "
299 "<filesystem|volume|snapshot>\n"
300 "\tsend [-nvPe] -t <receive_resume_token>\n"));
301 case HELP_SET:
302 return (gettext("\tset <property=value> ... "
303 "<filesystem|volume|snapshot> ...\n"));
304 case HELP_SHARE:
305 return (gettext("\tshare [-l] <-a [nfs|smb] | filesystem>\n"));
306 case HELP_SNAPSHOT:
307 return (gettext("\tsnapshot [-r] [-o property=value] ... "
308 "<filesystem|volume>@<snap> ...\n"));
309 case HELP_UNMOUNT:
310 return (gettext("\tunmount [-f] "
311 "<-a | filesystem|mountpoint>\n"));
312 case HELP_UNSHARE:
313 return (gettext("\tunshare "
314 "<-a [nfs|smb] | filesystem|mountpoint>\n"));
315 case HELP_ALLOW:
316 return (gettext("\tallow <filesystem|volume>\n"
317 "\tallow [-ldug] "
318 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
319 "\t <filesystem|volume>\n"
320 "\tallow [-ld] -e <perm|@setname>[,...] "
321 "<filesystem|volume>\n"
322 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
323 "\tallow -s @setname <perm|@setname>[,...] "
324 "<filesystem|volume>\n"));
325 case HELP_UNALLOW:
326 return (gettext("\tunallow [-rldug] "
327 "<\"everyone\"|user|group>[,...]\n"
328 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
329 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
330 "<filesystem|volume>\n"
331 "\tunallow [-r] -c [<perm|@setname>[,...]] "
332 "<filesystem|volume>\n"
333 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
334 "<filesystem|volume>\n"));
335 case HELP_USERSPACE:
336 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
337 "[-s field] ...\n"
338 "\t [-S field] ... [-t type[,...]] "
339 "<filesystem|snapshot>\n"));
340 case HELP_GROUPSPACE:
341 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
342 "[-s field] ...\n"
343 "\t [-S field] ... [-t type[,...]] "
344 "<filesystem|snapshot>\n"));
345 case HELP_PROJECTSPACE:
346 return (gettext("\tprojectspace [-Hp] [-o field[,...]] "
347 "[-s field] ... \n"
348 "\t [-S field] ... <filesystem|snapshot>\n"));
349 case HELP_PROJECT:
350 return (gettext("\tproject [-d|-r] <directory|file ...>\n"
351 "\tproject -c [-0] [-d|-r] [-p id] <directory|file ...>\n"
352 "\tproject -C [-k] [-r] <directory ...>\n"
353 "\tproject [-p id] [-r] [-s] <directory ...>\n"));
354 case HELP_HOLD:
355 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
356 case HELP_HOLDS:
357 return (gettext("\tholds [-rH] <snapshot> ...\n"));
358 case HELP_RELEASE:
359 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
360 case HELP_DIFF:
361 return (gettext("\tdiff [-FHt] <snapshot> "
362 "[snapshot|filesystem]\n"));
363 case HELP_REMAP:
364 return (gettext("\tremap <filesystem | volume>\n"));
365 case HELP_BOOKMARK:
366 return (gettext("\tbookmark <snapshot> <bookmark>\n"));
367 case HELP_CHANNEL_PROGRAM:
368 return (gettext("\tprogram [-jn] [-t <instruction limit>] "
369 "[-m <memory limit (b)>] <pool> <program file> "
370 "[lua args...]\n"));
371 case HELP_LOAD_KEY:
372 return (gettext("\tload-key [-rn] [-L <keylocation>] "
373 "<-a | filesystem|volume>\n"));
374 case HELP_UNLOAD_KEY:
375 return (gettext("\tunload-key [-r] "
376 "<-a | filesystem|volume>\n"));
377 case HELP_CHANGE_KEY:
378 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n"
379 "\t [-o keylocation=<value>] [-o pbkfd2iters=<value>]\n"
380 "\t <filesystem|volume>\n"
381 "\tchange-key -i [-l] <filesystem|volume>\n"));
382 }
383
384 abort();
385 /* NOTREACHED */
386 }
387
388 void
389 nomem(void)
390 {
391 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
392 exit(1);
393 }
394
395 /*
396 * Utility function to guarantee malloc() success.
397 */
398
399 void *
400 safe_malloc(size_t size)
401 {
402 void *data;
403
404 if ((data = calloc(1, size)) == NULL)
405 nomem();
406
407 return (data);
408 }
409
410 void *
411 safe_realloc(void *data, size_t size)
412 {
413 void *newp;
414 if ((newp = realloc(data, size)) == NULL) {
415 free(data);
416 nomem();
417 }
418
419 return (newp);
420 }
421
422 static char *
423 safe_strdup(char *str)
424 {
425 char *dupstr = strdup(str);
426
427 if (dupstr == NULL)
428 nomem();
429
430 return (dupstr);
431 }
432
433 /*
434 * Callback routine that will print out information for each of
435 * the properties.
436 */
437 static int
438 usage_prop_cb(int prop, void *cb)
439 {
440 FILE *fp = cb;
441
442 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
443
444 if (zfs_prop_readonly(prop))
445 (void) fprintf(fp, " NO ");
446 else
447 (void) fprintf(fp, "YES ");
448
449 if (zfs_prop_inheritable(prop))
450 (void) fprintf(fp, " YES ");
451 else
452 (void) fprintf(fp, " NO ");
453
454 if (zfs_prop_values(prop) == NULL)
455 (void) fprintf(fp, "-\n");
456 else
457 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
458
459 return (ZPROP_CONT);
460 }
461
462 /*
463 * Display usage message. If we're inside a command, display only the usage for
464 * that command. Otherwise, iterate over the entire command table and display
465 * a complete usage message.
466 */
467 static void
468 usage(boolean_t requested)
469 {
470 int i;
471 boolean_t show_properties = B_FALSE;
472 FILE *fp = requested ? stdout : stderr;
473
474 if (current_command == NULL) {
475
476 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
477 (void) fprintf(fp,
478 gettext("where 'command' is one of the following:\n\n"));
479
480 for (i = 0; i < NCOMMAND; i++) {
481 if (command_table[i].name == NULL)
482 (void) fprintf(fp, "\n");
483 else
484 (void) fprintf(fp, "%s",
485 get_usage(command_table[i].usage));
486 }
487
488 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
489 "pool/[dataset/]*dataset[@name]\n"));
490 } else {
491 (void) fprintf(fp, gettext("usage:\n"));
492 (void) fprintf(fp, "%s", get_usage(current_command->usage));
493 }
494
495 if (current_command != NULL &&
496 (strcmp(current_command->name, "set") == 0 ||
497 strcmp(current_command->name, "get") == 0 ||
498 strcmp(current_command->name, "inherit") == 0 ||
499 strcmp(current_command->name, "list") == 0))
500 show_properties = B_TRUE;
501
502 if (show_properties) {
503 (void) fprintf(fp,
504 gettext("\nThe following properties are supported:\n"));
505
506 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
507 "PROPERTY", "EDIT", "INHERIT", "VALUES");
508
509 /* Iterate over all properties */
510 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
511 ZFS_TYPE_DATASET);
512
513 (void) fprintf(fp, "\t%-15s ", "userused@...");
514 (void) fprintf(fp, " NO NO <size>\n");
515 (void) fprintf(fp, "\t%-15s ", "groupused@...");
516 (void) fprintf(fp, " NO NO <size>\n");
517 (void) fprintf(fp, "\t%-15s ", "projectused@...");
518 (void) fprintf(fp, " NO NO <size>\n");
519 (void) fprintf(fp, "\t%-15s ", "userobjused@...");
520 (void) fprintf(fp, " NO NO <size>\n");
521 (void) fprintf(fp, "\t%-15s ", "groupobjused@...");
522 (void) fprintf(fp, " NO NO <size>\n");
523 (void) fprintf(fp, "\t%-15s ", "projectobjused@...");
524 (void) fprintf(fp, " NO NO <size>\n");
525 (void) fprintf(fp, "\t%-15s ", "userquota@...");
526 (void) fprintf(fp, "YES NO <size> | none\n");
527 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
528 (void) fprintf(fp, "YES NO <size> | none\n");
529 (void) fprintf(fp, "\t%-15s ", "projectquota@...");
530 (void) fprintf(fp, "YES NO <size> | none\n");
531 (void) fprintf(fp, "\t%-15s ", "userobjquota@...");
532 (void) fprintf(fp, "YES NO <size> | none\n");
533 (void) fprintf(fp, "\t%-15s ", "groupobjquota@...");
534 (void) fprintf(fp, "YES NO <size> | none\n");
535 (void) fprintf(fp, "\t%-15s ", "projectobjquota@...");
536 (void) fprintf(fp, "YES NO <size> | none\n");
537 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
538 (void) fprintf(fp, " NO NO <size>\n");
539
540 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
541 "with standard units such as K, M, G, etc.\n"));
542 (void) fprintf(fp, gettext("\nUser-defined properties can "
543 "be specified by using a name containing a colon (:).\n"));
544 (void) fprintf(fp, gettext("\nThe {user|group|project}"
545 "[obj]{used|quota}@ properties must be appended with\n"
546 "a user|group|project specifier of one of these forms:\n"
547 " POSIX name (eg: \"matt\")\n"
548 " POSIX id (eg: \"126829\")\n"
549 " SMB name@domain (eg: \"matt@sun\")\n"
550 " SMB SID (eg: \"S-1-234-567-89\")\n"));
551 } else {
552 (void) fprintf(fp,
553 gettext("\nFor the property list, run: %s\n"),
554 "zfs set|get");
555 (void) fprintf(fp,
556 gettext("\nFor the delegated permission list, run: %s\n"),
557 "zfs allow|unallow");
558 }
559
560 /*
561 * See comments at end of main().
562 */
563 if (getenv("ZFS_ABORT") != NULL) {
564 (void) printf("dumping core by request\n");
565 abort();
566 }
567
568 exit(requested ? 0 : 2);
569 }
570
571 /*
572 * Take a property=value argument string and add it to the given nvlist.
573 * Modifies the argument inplace.
574 */
575 static boolean_t
576 parseprop(nvlist_t *props, char *propname)
577 {
578 char *propval;
579
580 if ((propval = strchr(propname, '=')) == NULL) {
581 (void) fprintf(stderr, gettext("missing "
582 "'=' for property=value argument\n"));
583 return (B_FALSE);
584 }
585 *propval = '\0';
586 propval++;
587 if (nvlist_exists(props, propname)) {
588 (void) fprintf(stderr, gettext("property '%s' "
589 "specified multiple times\n"), propname);
590 return (B_FALSE);
591 }
592 if (nvlist_add_string(props, propname, propval) != 0)
593 nomem();
594 return (B_TRUE);
595 }
596
597 /*
598 * Take a property name argument and add it to the given nvlist.
599 * Modifies the argument inplace.
600 */
601 static boolean_t
602 parsepropname(nvlist_t *props, char *propname)
603 {
604 if (strchr(propname, '=') != NULL) {
605 (void) fprintf(stderr, gettext("invalid character "
606 "'=' in property argument\n"));
607 return (B_FALSE);
608 }
609 if (nvlist_exists(props, propname)) {
610 (void) fprintf(stderr, gettext("property '%s' "
611 "specified multiple times\n"), propname);
612 return (B_FALSE);
613 }
614 if (nvlist_add_boolean(props, propname) != 0)
615 nomem();
616 return (B_TRUE);
617 }
618
619 static int
620 parse_depth(char *opt, int *flags)
621 {
622 char *tmp;
623 int depth;
624
625 depth = (int)strtol(opt, &tmp, 0);
626 if (*tmp) {
627 (void) fprintf(stderr,
628 gettext("%s is not an integer\n"), optarg);
629 usage(B_FALSE);
630 }
631 if (depth < 0) {
632 (void) fprintf(stderr,
633 gettext("Depth can not be negative.\n"));
634 usage(B_FALSE);
635 }
636 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
637 return (depth);
638 }
639
640 #define PROGRESS_DELAY 2 /* seconds */
641
642 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";
643 static time_t pt_begin;
644 static char *pt_header = NULL;
645 static boolean_t pt_shown;
646
647 static void
648 start_progress_timer(void)
649 {
650 pt_begin = time(NULL) + PROGRESS_DELAY;
651 pt_shown = B_FALSE;
652 }
653
654 static void
655 set_progress_header(char *header)
656 {
657 assert(pt_header == NULL);
658 pt_header = safe_strdup(header);
659 if (pt_shown) {
660 (void) printf("%s: ", header);
661 (void) fflush(stdout);
662 }
663 }
664
665 static void
666 update_progress(char *update)
667 {
668 if (!pt_shown && time(NULL) > pt_begin) {
669 int len = strlen(update);
670
671 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
672 pt_reverse);
673 (void) fflush(stdout);
674 pt_shown = B_TRUE;
675 } else if (pt_shown) {
676 int len = strlen(update);
677
678 (void) printf("%s%*.*s", update, len, len, pt_reverse);
679 (void) fflush(stdout);
680 }
681 }
682
683 static void
684 finish_progress(char *done)
685 {
686 if (pt_shown) {
687 (void) printf("%s\n", done);
688 (void) fflush(stdout);
689 }
690 free(pt_header);
691 pt_header = NULL;
692 }
693
694 static int
695 zfs_mount_and_share(libzfs_handle_t *hdl, const char *dataset, zfs_type_t type)
696 {
697 zfs_handle_t *zhp = NULL;
698 int ret = 0;
699
700 zhp = zfs_open(hdl, dataset, type);
701 if (zhp == NULL)
702 return (1);
703
704 /*
705 * Volumes may neither be mounted or shared. Potentially in the
706 * future filesystems detected on these volumes could be mounted.
707 */
708 if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) {
709 zfs_close(zhp);
710 return (0);
711 }
712
713 /*
714 * Mount and/or share the new filesystem as appropriate. We provide a
715 * verbose error message to let the user know that their filesystem was
716 * in fact created, even if we failed to mount or share it.
717 *
718 * If the user doesn't want the dataset automatically mounted, then
719 * skip the mount/share step
720 */
721 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) &&
722 zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) {
723 if (geteuid() != 0) {
724 (void) fprintf(stderr, gettext("filesystem "
725 "successfully created, but it may only be "
726 "mounted by root\n"));
727 ret = 1;
728 } else if (zfs_mount(zhp, NULL, 0) != 0) {
729 (void) fprintf(stderr, gettext("filesystem "
730 "successfully created, but not mounted\n"));
731 ret = 1;
732 } else if (zfs_share(zhp) != 0) {
733 (void) fprintf(stderr, gettext("filesystem "
734 "successfully created, but not shared\n"));
735 ret = 1;
736 }
737 }
738
739 zfs_close(zhp);
740
741 return (ret);
742 }
743
744 /*
745 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
746 *
747 * Given an existing dataset, create a writable copy whose initial contents
748 * are the same as the source. The newly created dataset maintains a
749 * dependency on the original; the original cannot be destroyed so long as
750 * the clone exists.
751 *
752 * The '-p' flag creates all the non-existing ancestors of the target first.
753 */
754 static int
755 zfs_do_clone(int argc, char **argv)
756 {
757 zfs_handle_t *zhp = NULL;
758 boolean_t parents = B_FALSE;
759 nvlist_t *props;
760 int ret = 0;
761 int c;
762
763 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
764 nomem();
765
766 /* check options */
767 while ((c = getopt(argc, argv, "o:p")) != -1) {
768 switch (c) {
769 case 'o':
770 if (!parseprop(props, optarg)) {
771 nvlist_free(props);
772 return (1);
773 }
774 break;
775 case 'p':
776 parents = B_TRUE;
777 break;
778 case '?':
779 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
780 optopt);
781 goto usage;
782 }
783 }
784
785 argc -= optind;
786 argv += optind;
787
788 /* check number of arguments */
789 if (argc < 1) {
790 (void) fprintf(stderr, gettext("missing source dataset "
791 "argument\n"));
792 goto usage;
793 }
794 if (argc < 2) {
795 (void) fprintf(stderr, gettext("missing target dataset "
796 "argument\n"));
797 goto usage;
798 }
799 if (argc > 2) {
800 (void) fprintf(stderr, gettext("too many arguments\n"));
801 goto usage;
802 }
803
804 /* open the source dataset */
805 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) {
806 nvlist_free(props);
807 return (1);
808 }
809
810 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
811 ZFS_TYPE_VOLUME)) {
812 /*
813 * Now create the ancestors of the target dataset. If the
814 * target already exists and '-p' option was used we should not
815 * complain.
816 */
817 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
818 ZFS_TYPE_VOLUME)) {
819 zfs_close(zhp);
820 nvlist_free(props);
821 return (0);
822 }
823 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) {
824 zfs_close(zhp);
825 nvlist_free(props);
826 return (1);
827 }
828 }
829
830 /* pass to libzfs */
831 ret = zfs_clone(zhp, argv[1], props);
832
833 /* create the mountpoint if necessary */
834 if (ret == 0) {
835 if (log_history) {
836 (void) zpool_log_history(g_zfs, history_str);
837 log_history = B_FALSE;
838 }
839
840 ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET);
841 }
842
843 zfs_close(zhp);
844 nvlist_free(props);
845
846 return (!!ret);
847
848 usage:
849 ASSERT3P(zhp, ==, NULL);
850 nvlist_free(props);
851 usage(B_FALSE);
852 return (-1);
853 }
854
855 /*
856 * zfs create [-p] [-o prop=value] ... fs
857 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
858 *
859 * Create a new dataset. This command can be used to create filesystems
860 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
861 * For volumes, the user must specify a size to be used.
862 *
863 * The '-s' flag applies only to volumes, and indicates that we should not try
864 * to set the reservation for this volume. By default we set a reservation
865 * equal to the size for any volume. For pools with SPA_VERSION >=
866 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
867 *
868 * The '-p' flag creates all the non-existing ancestors of the target first.
869 */
870 static int
871 zfs_do_create(int argc, char **argv)
872 {
873 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
874 uint64_t volsize = 0;
875 int c;
876 boolean_t noreserve = B_FALSE;
877 boolean_t bflag = B_FALSE;
878 boolean_t parents = B_FALSE;
879 int ret = 1;
880 nvlist_t *props;
881 uint64_t intval;
882
883 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
884 nomem();
885
886 /* check options */
887 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
888 switch (c) {
889 case 'V':
890 type = ZFS_TYPE_VOLUME;
891 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
892 (void) fprintf(stderr, gettext("bad volume "
893 "size '%s': %s\n"), optarg,
894 libzfs_error_description(g_zfs));
895 goto error;
896 }
897
898 if (nvlist_add_uint64(props,
899 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
900 nomem();
901 volsize = intval;
902 break;
903 case 'p':
904 parents = B_TRUE;
905 break;
906 case 'b':
907 bflag = B_TRUE;
908 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
909 (void) fprintf(stderr, gettext("bad volume "
910 "block size '%s': %s\n"), optarg,
911 libzfs_error_description(g_zfs));
912 goto error;
913 }
914
915 if (nvlist_add_uint64(props,
916 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
917 intval) != 0)
918 nomem();
919 break;
920 case 'o':
921 if (!parseprop(props, optarg))
922 goto error;
923 break;
924 case 's':
925 noreserve = B_TRUE;
926 break;
927 case ':':
928 (void) fprintf(stderr, gettext("missing size "
929 "argument\n"));
930 goto badusage;
931 case '?':
932 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
933 optopt);
934 goto badusage;
935 }
936 }
937
938 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
939 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
940 "used when creating a volume\n"));
941 goto badusage;
942 }
943
944 argc -= optind;
945 argv += optind;
946
947 /* check number of arguments */
948 if (argc == 0) {
949 (void) fprintf(stderr, gettext("missing %s argument\n"),
950 zfs_type_to_name(type));
951 goto badusage;
952 }
953 if (argc > 1) {
954 (void) fprintf(stderr, gettext("too many arguments\n"));
955 goto badusage;
956 }
957
958 if (type == ZFS_TYPE_VOLUME && !noreserve) {
959 zpool_handle_t *zpool_handle;
960 nvlist_t *real_props = NULL;
961 uint64_t spa_version;
962 char *p;
963 zfs_prop_t resv_prop;
964 char *strval;
965 char msg[1024];
966
967 if ((p = strchr(argv[0], '/')) != NULL)
968 *p = '\0';
969 zpool_handle = zpool_open(g_zfs, argv[0]);
970 if (p != NULL)
971 *p = '/';
972 if (zpool_handle == NULL)
973 goto error;
974 spa_version = zpool_get_prop_int(zpool_handle,
975 ZPOOL_PROP_VERSION, NULL);
976 if (spa_version >= SPA_VERSION_REFRESERVATION)
977 resv_prop = ZFS_PROP_REFRESERVATION;
978 else
979 resv_prop = ZFS_PROP_RESERVATION;
980
981 (void) snprintf(msg, sizeof (msg),
982 gettext("cannot create '%s'"), argv[0]);
983 if (props && (real_props = zfs_valid_proplist(g_zfs, type,
984 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) {
985 zpool_close(zpool_handle);
986 goto error;
987 }
988 zpool_close(zpool_handle);
989
990 volsize = zvol_volsize_to_reservation(volsize, real_props);
991 nvlist_free(real_props);
992
993 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
994 &strval) != 0) {
995 if (nvlist_add_uint64(props,
996 zfs_prop_to_name(resv_prop), volsize) != 0) {
997 nvlist_free(props);
998 nomem();
999 }
1000 }
1001 }
1002
1003 if (parents && zfs_name_valid(argv[0], type)) {
1004 /*
1005 * Now create the ancestors of target dataset. If the target
1006 * already exists and '-p' option was used we should not
1007 * complain.
1008 */
1009 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
1010 ret = 0;
1011 goto error;
1012 }
1013 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
1014 goto error;
1015 }
1016
1017 /* pass to libzfs */
1018 if (zfs_create(g_zfs, argv[0], type, props) != 0)
1019 goto error;
1020
1021 if (log_history) {
1022 (void) zpool_log_history(g_zfs, history_str);
1023 log_history = B_FALSE;
1024 }
1025
1026 ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET);
1027 error:
1028 nvlist_free(props);
1029 return (ret);
1030 badusage:
1031 nvlist_free(props);
1032 usage(B_FALSE);
1033 return (2);
1034 }
1035
1036 /*
1037 * zfs destroy [-rRf] <fs, vol>
1038 * zfs destroy [-rRd] <snap>
1039 *
1040 * -r Recursively destroy all children
1041 * -R Recursively destroy all dependents, including clones
1042 * -f Force unmounting of any dependents
1043 * -d If we can't destroy now, mark for deferred destruction
1044 *
1045 * Destroys the given dataset. By default, it will unmount any filesystems,
1046 * and refuse to destroy a dataset that has any dependents. A dependent can
1047 * either be a child, or a clone of a child.
1048 */
1049 typedef struct destroy_cbdata {
1050 boolean_t cb_first;
1051 boolean_t cb_force;
1052 boolean_t cb_recurse;
1053 boolean_t cb_error;
1054 boolean_t cb_doclones;
1055 zfs_handle_t *cb_target;
1056 boolean_t cb_defer_destroy;
1057 boolean_t cb_verbose;
1058 boolean_t cb_parsable;
1059 boolean_t cb_dryrun;
1060 nvlist_t *cb_nvl;
1061 nvlist_t *cb_batchedsnaps;
1062
1063 /* first snap in contiguous run */
1064 char *cb_firstsnap;
1065 /* previous snap in contiguous run */
1066 char *cb_prevsnap;
1067 int64_t cb_snapused;
1068 char *cb_snapspec;
1069 char *cb_bookmark;
1070 uint64_t cb_snap_count;
1071 } destroy_cbdata_t;
1072
1073 /*
1074 * Check for any dependents based on the '-r' or '-R' flags.
1075 */
1076 static int
1077 destroy_check_dependent(zfs_handle_t *zhp, void *data)
1078 {
1079 destroy_cbdata_t *cbp = data;
1080 const char *tname = zfs_get_name(cbp->cb_target);
1081 const char *name = zfs_get_name(zhp);
1082
1083 if (strncmp(tname, name, strlen(tname)) == 0 &&
1084 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
1085 /*
1086 * This is a direct descendant, not a clone somewhere else in
1087 * the hierarchy.
1088 */
1089 if (cbp->cb_recurse)
1090 goto out;
1091
1092 if (cbp->cb_first) {
1093 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1094 "%s has children\n"),
1095 zfs_get_name(cbp->cb_target),
1096 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1097 (void) fprintf(stderr, gettext("use '-r' to destroy "
1098 "the following datasets:\n"));
1099 cbp->cb_first = B_FALSE;
1100 cbp->cb_error = B_TRUE;
1101 }
1102
1103 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1104 } else {
1105 /*
1106 * This is a clone. We only want to report this if the '-r'
1107 * wasn't specified, or the target is a snapshot.
1108 */
1109 if (!cbp->cb_recurse &&
1110 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
1111 goto out;
1112
1113 if (cbp->cb_first) {
1114 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1115 "%s has dependent clones\n"),
1116 zfs_get_name(cbp->cb_target),
1117 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
1118 (void) fprintf(stderr, gettext("use '-R' to destroy "
1119 "the following datasets:\n"));
1120 cbp->cb_first = B_FALSE;
1121 cbp->cb_error = B_TRUE;
1122 cbp->cb_dryrun = B_TRUE;
1123 }
1124
1125 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
1126 }
1127
1128 out:
1129 zfs_close(zhp);
1130 return (0);
1131 }
1132
1133 static int
1134 destroy_batched(destroy_cbdata_t *cb)
1135 {
1136 int error = zfs_destroy_snaps_nvl(g_zfs,
1137 cb->cb_batchedsnaps, B_FALSE);
1138 fnvlist_free(cb->cb_batchedsnaps);
1139 cb->cb_batchedsnaps = fnvlist_alloc();
1140 return (error);
1141 }
1142
1143 static int
1144 destroy_callback(zfs_handle_t *zhp, void *data)
1145 {
1146 destroy_cbdata_t *cb = data;
1147 const char *name = zfs_get_name(zhp);
1148 int error;
1149
1150 if (cb->cb_verbose) {
1151 if (cb->cb_parsable) {
1152 (void) printf("destroy\t%s\n", name);
1153 } else if (cb->cb_dryrun) {
1154 (void) printf(gettext("would destroy %s\n"),
1155 name);
1156 } else {
1157 (void) printf(gettext("will destroy %s\n"),
1158 name);
1159 }
1160 }
1161
1162 /*
1163 * Ignore pools (which we've already flagged as an error before getting
1164 * here).
1165 */
1166 if (strchr(zfs_get_name(zhp), '/') == NULL &&
1167 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1168 zfs_close(zhp);
1169 return (0);
1170 }
1171 if (cb->cb_dryrun) {
1172 zfs_close(zhp);
1173 return (0);
1174 }
1175
1176 /*
1177 * We batch up all contiguous snapshots (even of different
1178 * filesystems) and destroy them with one ioctl. We can't
1179 * simply do all snap deletions and then all fs deletions,
1180 * because we must delete a clone before its origin.
1181 */
1182 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
1183 cb->cb_snap_count++;
1184 fnvlist_add_boolean(cb->cb_batchedsnaps, name);
1185 if (cb->cb_snap_count % 10 == 0 && cb->cb_defer_destroy)
1186 error = destroy_batched(cb);
1187 } else {
1188 error = destroy_batched(cb);
1189 if (error != 0 ||
1190 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
1191 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
1192 zfs_close(zhp);
1193 /*
1194 * When performing a recursive destroy we ignore errors
1195 * so that the recursive destroy could continue
1196 * destroying past problem datasets
1197 */
1198 if (cb->cb_recurse) {
1199 cb->cb_error = B_TRUE;
1200 return (0);
1201 }
1202 return (-1);
1203 }
1204 }
1205
1206 zfs_close(zhp);
1207 return (0);
1208 }
1209
1210 static int
1211 destroy_print_cb(zfs_handle_t *zhp, void *arg)
1212 {
1213 destroy_cbdata_t *cb = arg;
1214 const char *name = zfs_get_name(zhp);
1215 int err = 0;
1216
1217 if (nvlist_exists(cb->cb_nvl, name)) {
1218 if (cb->cb_firstsnap == NULL)
1219 cb->cb_firstsnap = strdup(name);
1220 if (cb->cb_prevsnap != NULL)
1221 free(cb->cb_prevsnap);
1222 /* this snap continues the current range */
1223 cb->cb_prevsnap = strdup(name);
1224 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1225 nomem();
1226 if (cb->cb_verbose) {
1227 if (cb->cb_parsable) {
1228 (void) printf("destroy\t%s\n", name);
1229 } else if (cb->cb_dryrun) {
1230 (void) printf(gettext("would destroy %s\n"),
1231 name);
1232 } else {
1233 (void) printf(gettext("will destroy %s\n"),
1234 name);
1235 }
1236 }
1237 } else if (cb->cb_firstsnap != NULL) {
1238 /* end of this range */
1239 uint64_t used = 0;
1240 err = lzc_snaprange_space(cb->cb_firstsnap,
1241 cb->cb_prevsnap, &used);
1242 cb->cb_snapused += used;
1243 free(cb->cb_firstsnap);
1244 cb->cb_firstsnap = NULL;
1245 free(cb->cb_prevsnap);
1246 cb->cb_prevsnap = NULL;
1247 }
1248 zfs_close(zhp);
1249 return (err);
1250 }
1251
1252 static int
1253 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1254 {
1255 int err;
1256 assert(cb->cb_firstsnap == NULL);
1257 assert(cb->cb_prevsnap == NULL);
1258 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1259 if (cb->cb_firstsnap != NULL) {
1260 uint64_t used = 0;
1261 if (err == 0) {
1262 err = lzc_snaprange_space(cb->cb_firstsnap,
1263 cb->cb_prevsnap, &used);
1264 }
1265 cb->cb_snapused += used;
1266 free(cb->cb_firstsnap);
1267 cb->cb_firstsnap = NULL;
1268 free(cb->cb_prevsnap);
1269 cb->cb_prevsnap = NULL;
1270 }
1271 return (err);
1272 }
1273
1274 static int
1275 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1276 {
1277 destroy_cbdata_t *cb = arg;
1278 int err = 0;
1279
1280 /* Check for clones. */
1281 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1282 cb->cb_target = zhp;
1283 cb->cb_first = B_TRUE;
1284 err = zfs_iter_dependents(zhp, B_TRUE,
1285 destroy_check_dependent, cb);
1286 }
1287
1288 if (err == 0) {
1289 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1290 nomem();
1291 }
1292 zfs_close(zhp);
1293 return (err);
1294 }
1295
1296 static int
1297 gather_snapshots(zfs_handle_t *zhp, void *arg)
1298 {
1299 destroy_cbdata_t *cb = arg;
1300 int err = 0;
1301
1302 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1303 if (err == ENOENT)
1304 err = 0;
1305 if (err != 0)
1306 goto out;
1307
1308 if (cb->cb_verbose) {
1309 err = destroy_print_snapshots(zhp, cb);
1310 if (err != 0)
1311 goto out;
1312 }
1313
1314 if (cb->cb_recurse)
1315 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1316
1317 out:
1318 zfs_close(zhp);
1319 return (err);
1320 }
1321
1322 static int
1323 destroy_clones(destroy_cbdata_t *cb)
1324 {
1325 nvpair_t *pair;
1326 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1327 pair != NULL;
1328 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1329 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1330 ZFS_TYPE_SNAPSHOT);
1331 if (zhp != NULL) {
1332 boolean_t defer = cb->cb_defer_destroy;
1333 int err;
1334
1335 /*
1336 * We can't defer destroy non-snapshots, so set it to
1337 * false while destroying the clones.
1338 */
1339 cb->cb_defer_destroy = B_FALSE;
1340 err = zfs_iter_dependents(zhp, B_FALSE,
1341 destroy_callback, cb);
1342 cb->cb_defer_destroy = defer;
1343 zfs_close(zhp);
1344 if (err != 0)
1345 return (err);
1346 }
1347 }
1348 return (0);
1349 }
1350
1351 static int
1352 zfs_do_destroy(int argc, char **argv)
1353 {
1354 destroy_cbdata_t cb = { 0 };
1355 int rv = 0;
1356 int err = 0;
1357 int c;
1358 zfs_handle_t *zhp = NULL;
1359 char *at, *pound;
1360 zfs_type_t type = ZFS_TYPE_DATASET;
1361
1362 /* check options */
1363 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1364 switch (c) {
1365 case 'v':
1366 cb.cb_verbose = B_TRUE;
1367 break;
1368 case 'p':
1369 cb.cb_verbose = B_TRUE;
1370 cb.cb_parsable = B_TRUE;
1371 break;
1372 case 'n':
1373 cb.cb_dryrun = B_TRUE;
1374 break;
1375 case 'd':
1376 cb.cb_defer_destroy = B_TRUE;
1377 type = ZFS_TYPE_SNAPSHOT;
1378 break;
1379 case 'f':
1380 cb.cb_force = B_TRUE;
1381 break;
1382 case 'r':
1383 cb.cb_recurse = B_TRUE;
1384 break;
1385 case 'R':
1386 cb.cb_recurse = B_TRUE;
1387 cb.cb_doclones = B_TRUE;
1388 break;
1389 case '?':
1390 default:
1391 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1392 optopt);
1393 usage(B_FALSE);
1394 }
1395 }
1396
1397 argc -= optind;
1398 argv += optind;
1399
1400 /* check number of arguments */
1401 if (argc == 0) {
1402 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1403 usage(B_FALSE);
1404 }
1405 if (argc > 1) {
1406 (void) fprintf(stderr, gettext("too many arguments\n"));
1407 usage(B_FALSE);
1408 }
1409
1410 at = strchr(argv[0], '@');
1411 pound = strchr(argv[0], '#');
1412 if (at != NULL) {
1413
1414 /* Build the list of snaps to destroy in cb_nvl. */
1415 cb.cb_nvl = fnvlist_alloc();
1416
1417 *at = '\0';
1418 zhp = zfs_open(g_zfs, argv[0],
1419 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1420 if (zhp == NULL) {
1421 nvlist_free(cb.cb_nvl);
1422 return (1);
1423 }
1424
1425 cb.cb_snapspec = at + 1;
1426 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1427 cb.cb_error) {
1428 rv = 1;
1429 goto out;
1430 }
1431
1432 if (nvlist_empty(cb.cb_nvl)) {
1433 (void) fprintf(stderr, gettext("could not find any "
1434 "snapshots to destroy; check snapshot names.\n"));
1435 rv = 1;
1436 goto out;
1437 }
1438
1439 if (cb.cb_verbose) {
1440 char buf[16];
1441 zfs_nicebytes(cb.cb_snapused, buf, sizeof (buf));
1442 if (cb.cb_parsable) {
1443 (void) printf("reclaim\t%llu\n",
1444 (u_longlong_t)cb.cb_snapused);
1445 } else if (cb.cb_dryrun) {
1446 (void) printf(gettext("would reclaim %s\n"),
1447 buf);
1448 } else {
1449 (void) printf(gettext("will reclaim %s\n"),
1450 buf);
1451 }
1452 }
1453
1454 if (!cb.cb_dryrun) {
1455 if (cb.cb_doclones) {
1456 cb.cb_batchedsnaps = fnvlist_alloc();
1457 err = destroy_clones(&cb);
1458 if (err == 0) {
1459 err = zfs_destroy_snaps_nvl(g_zfs,
1460 cb.cb_batchedsnaps, B_FALSE);
1461 }
1462 if (err != 0) {
1463 rv = 1;
1464 goto out;
1465 }
1466 }
1467 if (err == 0) {
1468 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1469 cb.cb_defer_destroy);
1470 }
1471 }
1472
1473 if (err != 0)
1474 rv = 1;
1475 } else if (pound != NULL) {
1476 int err;
1477 nvlist_t *nvl;
1478
1479 if (cb.cb_dryrun) {
1480 (void) fprintf(stderr,
1481 "dryrun is not supported with bookmark\n");
1482 return (-1);
1483 }
1484
1485 if (cb.cb_defer_destroy) {
1486 (void) fprintf(stderr,
1487 "defer destroy is not supported with bookmark\n");
1488 return (-1);
1489 }
1490
1491 if (cb.cb_recurse) {
1492 (void) fprintf(stderr,
1493 "recursive is not supported with bookmark\n");
1494 return (-1);
1495 }
1496
1497 if (!zfs_bookmark_exists(argv[0])) {
1498 (void) fprintf(stderr, gettext("bookmark '%s' "
1499 "does not exist.\n"), argv[0]);
1500 return (1);
1501 }
1502
1503 nvl = fnvlist_alloc();
1504 fnvlist_add_boolean(nvl, argv[0]);
1505
1506 err = lzc_destroy_bookmarks(nvl, NULL);
1507 if (err != 0) {
1508 (void) zfs_standard_error(g_zfs, err,
1509 "cannot destroy bookmark");
1510 }
1511
1512 nvlist_free(nvl);
1513
1514 return (err);
1515 } else {
1516 /* Open the given dataset */
1517 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1518 return (1);
1519
1520 cb.cb_target = zhp;
1521
1522 /*
1523 * Perform an explicit check for pools before going any further.
1524 */
1525 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1526 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1527 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1528 "operation does not apply to pools\n"),
1529 zfs_get_name(zhp));
1530 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1531 "%s' to destroy all datasets in the pool\n"),
1532 zfs_get_name(zhp));
1533 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1534 "to destroy the pool itself\n"), zfs_get_name(zhp));
1535 rv = 1;
1536 goto out;
1537 }
1538
1539 /*
1540 * Check for any dependents and/or clones.
1541 */
1542 cb.cb_first = B_TRUE;
1543 if (!cb.cb_doclones &&
1544 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1545 &cb) != 0) {
1546 rv = 1;
1547 goto out;
1548 }
1549
1550 if (cb.cb_error) {
1551 rv = 1;
1552 goto out;
1553 }
1554 cb.cb_batchedsnaps = fnvlist_alloc();
1555 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1556 &cb) != 0) {
1557 rv = 1;
1558 goto out;
1559 }
1560
1561 /*
1562 * Do the real thing. The callback will close the
1563 * handle regardless of whether it succeeds or not.
1564 */
1565 err = destroy_callback(zhp, &cb);
1566 zhp = NULL;
1567 if (err == 0) {
1568 err = zfs_destroy_snaps_nvl(g_zfs,
1569 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1570 }
1571 if (err != 0 || cb.cb_error == B_TRUE)
1572 rv = 1;
1573 }
1574
1575 out:
1576 fnvlist_free(cb.cb_batchedsnaps);
1577 fnvlist_free(cb.cb_nvl);
1578 if (zhp != NULL)
1579 zfs_close(zhp);
1580 return (rv);
1581 }
1582
1583 static boolean_t
1584 is_recvd_column(zprop_get_cbdata_t *cbp)
1585 {
1586 int i;
1587 zfs_get_column_t col;
1588
1589 for (i = 0; i < ZFS_GET_NCOLS &&
1590 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1591 if (col == GET_COL_RECVD)
1592 return (B_TRUE);
1593 return (B_FALSE);
1594 }
1595
1596 /*
1597 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1598 * < all | property[,property]... > < fs | snap | vol > ...
1599 *
1600 * -r recurse over any child datasets
1601 * -H scripted mode. Headers are stripped, and fields are separated
1602 * by tabs instead of spaces.
1603 * -o Set of fields to display. One of "name,property,value,
1604 * received,source". Default is "name,property,value,source".
1605 * "all" is an alias for all five.
1606 * -s Set of sources to allow. One of
1607 * "local,default,inherited,received,temporary,none". Default is
1608 * all six.
1609 * -p Display values in parsable (literal) format.
1610 *
1611 * Prints properties for the given datasets. The user can control which
1612 * columns to display as well as which property types to allow.
1613 */
1614
1615 /*
1616 * Invoked to display the properties for a single dataset.
1617 */
1618 static int
1619 get_callback(zfs_handle_t *zhp, void *data)
1620 {
1621 char buf[ZFS_MAXPROPLEN];
1622 char rbuf[ZFS_MAXPROPLEN];
1623 zprop_source_t sourcetype;
1624 char source[ZFS_MAX_DATASET_NAME_LEN];
1625 zprop_get_cbdata_t *cbp = data;
1626 nvlist_t *user_props = zfs_get_user_props(zhp);
1627 zprop_list_t *pl = cbp->cb_proplist;
1628 nvlist_t *propval;
1629 char *strval;
1630 char *sourceval;
1631 boolean_t received = is_recvd_column(cbp);
1632
1633 for (; pl != NULL; pl = pl->pl_next) {
1634 char *recvdval = NULL;
1635 /*
1636 * Skip the special fake placeholder. This will also skip over
1637 * the name property when 'all' is specified.
1638 */
1639 if (pl->pl_prop == ZFS_PROP_NAME &&
1640 pl == cbp->cb_proplist)
1641 continue;
1642
1643 if (pl->pl_prop != ZPROP_INVAL) {
1644 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1645 sizeof (buf), &sourcetype, source,
1646 sizeof (source),
1647 cbp->cb_literal) != 0) {
1648 if (pl->pl_all)
1649 continue;
1650 if (!zfs_prop_valid_for_type(pl->pl_prop,
1651 ZFS_TYPE_DATASET, B_FALSE)) {
1652 (void) fprintf(stderr,
1653 gettext("No such property '%s'\n"),
1654 zfs_prop_to_name(pl->pl_prop));
1655 continue;
1656 }
1657 sourcetype = ZPROP_SRC_NONE;
1658 (void) strlcpy(buf, "-", sizeof (buf));
1659 }
1660
1661 if (received && (zfs_prop_get_recvd(zhp,
1662 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1663 cbp->cb_literal) == 0))
1664 recvdval = rbuf;
1665
1666 zprop_print_one_property(zfs_get_name(zhp), cbp,
1667 zfs_prop_to_name(pl->pl_prop),
1668 buf, sourcetype, source, recvdval);
1669 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1670 sourcetype = ZPROP_SRC_LOCAL;
1671
1672 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1673 buf, sizeof (buf), cbp->cb_literal) != 0) {
1674 sourcetype = ZPROP_SRC_NONE;
1675 (void) strlcpy(buf, "-", sizeof (buf));
1676 }
1677
1678 zprop_print_one_property(zfs_get_name(zhp), cbp,
1679 pl->pl_user_prop, buf, sourcetype, source, NULL);
1680 } else if (zfs_prop_written(pl->pl_user_prop)) {
1681 sourcetype = ZPROP_SRC_LOCAL;
1682
1683 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1684 buf, sizeof (buf), cbp->cb_literal) != 0) {
1685 sourcetype = ZPROP_SRC_NONE;
1686 (void) strlcpy(buf, "-", sizeof (buf));
1687 }
1688
1689 zprop_print_one_property(zfs_get_name(zhp), cbp,
1690 pl->pl_user_prop, buf, sourcetype, source, NULL);
1691 } else {
1692 if (nvlist_lookup_nvlist(user_props,
1693 pl->pl_user_prop, &propval) != 0) {
1694 if (pl->pl_all)
1695 continue;
1696 sourcetype = ZPROP_SRC_NONE;
1697 strval = "-";
1698 } else {
1699 verify(nvlist_lookup_string(propval,
1700 ZPROP_VALUE, &strval) == 0);
1701 verify(nvlist_lookup_string(propval,
1702 ZPROP_SOURCE, &sourceval) == 0);
1703
1704 if (strcmp(sourceval,
1705 zfs_get_name(zhp)) == 0) {
1706 sourcetype = ZPROP_SRC_LOCAL;
1707 } else if (strcmp(sourceval,
1708 ZPROP_SOURCE_VAL_RECVD) == 0) {
1709 sourcetype = ZPROP_SRC_RECEIVED;
1710 } else {
1711 sourcetype = ZPROP_SRC_INHERITED;
1712 (void) strlcpy(source,
1713 sourceval, sizeof (source));
1714 }
1715 }
1716
1717 if (received && (zfs_prop_get_recvd(zhp,
1718 pl->pl_user_prop, rbuf, sizeof (rbuf),
1719 cbp->cb_literal) == 0))
1720 recvdval = rbuf;
1721
1722 zprop_print_one_property(zfs_get_name(zhp), cbp,
1723 pl->pl_user_prop, strval, sourcetype,
1724 source, recvdval);
1725 }
1726 }
1727
1728 return (0);
1729 }
1730
1731 static int
1732 zfs_do_get(int argc, char **argv)
1733 {
1734 zprop_get_cbdata_t cb = { 0 };
1735 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1736 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK;
1737 char *value, *fields;
1738 int ret = 0;
1739 int limit = 0;
1740 zprop_list_t fake_name = { 0 };
1741
1742 /*
1743 * Set up default columns and sources.
1744 */
1745 cb.cb_sources = ZPROP_SRC_ALL;
1746 cb.cb_columns[0] = GET_COL_NAME;
1747 cb.cb_columns[1] = GET_COL_PROPERTY;
1748 cb.cb_columns[2] = GET_COL_VALUE;
1749 cb.cb_columns[3] = GET_COL_SOURCE;
1750 cb.cb_type = ZFS_TYPE_DATASET;
1751
1752 /* check options */
1753 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1754 switch (c) {
1755 case 'p':
1756 cb.cb_literal = B_TRUE;
1757 break;
1758 case 'd':
1759 limit = parse_depth(optarg, &flags);
1760 break;
1761 case 'r':
1762 flags |= ZFS_ITER_RECURSE;
1763 break;
1764 case 'H':
1765 cb.cb_scripted = B_TRUE;
1766 break;
1767 case ':':
1768 (void) fprintf(stderr, gettext("missing argument for "
1769 "'%c' option\n"), optopt);
1770 usage(B_FALSE);
1771 break;
1772 case 'o':
1773 /*
1774 * Process the set of columns to display. We zero out
1775 * the structure to give us a blank slate.
1776 */
1777 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1778 i = 0;
1779 while (*optarg != '\0') {
1780 static char *col_subopts[] =
1781 { "name", "property", "value", "received",
1782 "source", "all", NULL };
1783
1784 if (i == ZFS_GET_NCOLS) {
1785 (void) fprintf(stderr, gettext("too "
1786 "many fields given to -o "
1787 "option\n"));
1788 usage(B_FALSE);
1789 }
1790
1791 switch (getsubopt(&optarg, col_subopts,
1792 &value)) {
1793 case 0:
1794 cb.cb_columns[i++] = GET_COL_NAME;
1795 break;
1796 case 1:
1797 cb.cb_columns[i++] = GET_COL_PROPERTY;
1798 break;
1799 case 2:
1800 cb.cb_columns[i++] = GET_COL_VALUE;
1801 break;
1802 case 3:
1803 cb.cb_columns[i++] = GET_COL_RECVD;
1804 flags |= ZFS_ITER_RECVD_PROPS;
1805 break;
1806 case 4:
1807 cb.cb_columns[i++] = GET_COL_SOURCE;
1808 break;
1809 case 5:
1810 if (i > 0) {
1811 (void) fprintf(stderr,
1812 gettext("\"all\" conflicts "
1813 "with specific fields "
1814 "given to -o option\n"));
1815 usage(B_FALSE);
1816 }
1817 cb.cb_columns[0] = GET_COL_NAME;
1818 cb.cb_columns[1] = GET_COL_PROPERTY;
1819 cb.cb_columns[2] = GET_COL_VALUE;
1820 cb.cb_columns[3] = GET_COL_RECVD;
1821 cb.cb_columns[4] = GET_COL_SOURCE;
1822 flags |= ZFS_ITER_RECVD_PROPS;
1823 i = ZFS_GET_NCOLS;
1824 break;
1825 default:
1826 (void) fprintf(stderr,
1827 gettext("invalid column name "
1828 "'%s'\n"), value);
1829 usage(B_FALSE);
1830 }
1831 }
1832 break;
1833
1834 case 's':
1835 cb.cb_sources = 0;
1836 while (*optarg != '\0') {
1837 static char *source_subopts[] = {
1838 "local", "default", "inherited",
1839 "received", "temporary", "none",
1840 NULL };
1841
1842 switch (getsubopt(&optarg, source_subopts,
1843 &value)) {
1844 case 0:
1845 cb.cb_sources |= ZPROP_SRC_LOCAL;
1846 break;
1847 case 1:
1848 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1849 break;
1850 case 2:
1851 cb.cb_sources |= ZPROP_SRC_INHERITED;
1852 break;
1853 case 3:
1854 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1855 break;
1856 case 4:
1857 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1858 break;
1859 case 5:
1860 cb.cb_sources |= ZPROP_SRC_NONE;
1861 break;
1862 default:
1863 (void) fprintf(stderr,
1864 gettext("invalid source "
1865 "'%s'\n"), value);
1866 usage(B_FALSE);
1867 }
1868 }
1869 break;
1870
1871 case 't':
1872 types = 0;
1873 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1874 while (*optarg != '\0') {
1875 static char *type_subopts[] = { "filesystem",
1876 "volume", "snapshot", "bookmark",
1877 "all", NULL };
1878
1879 switch (getsubopt(&optarg, type_subopts,
1880 &value)) {
1881 case 0:
1882 types |= ZFS_TYPE_FILESYSTEM;
1883 break;
1884 case 1:
1885 types |= ZFS_TYPE_VOLUME;
1886 break;
1887 case 2:
1888 types |= ZFS_TYPE_SNAPSHOT;
1889 break;
1890 case 3:
1891 types |= ZFS_TYPE_BOOKMARK;
1892 break;
1893 case 4:
1894 types = ZFS_TYPE_DATASET |
1895 ZFS_TYPE_BOOKMARK;
1896 break;
1897
1898 default:
1899 (void) fprintf(stderr,
1900 gettext("invalid type '%s'\n"),
1901 value);
1902 usage(B_FALSE);
1903 }
1904 }
1905 break;
1906
1907 case '?':
1908 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1909 optopt);
1910 usage(B_FALSE);
1911 }
1912 }
1913
1914 argc -= optind;
1915 argv += optind;
1916
1917 if (argc < 1) {
1918 (void) fprintf(stderr, gettext("missing property "
1919 "argument\n"));
1920 usage(B_FALSE);
1921 }
1922
1923 fields = argv[0];
1924
1925 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1926 != 0)
1927 usage(B_FALSE);
1928
1929 argc--;
1930 argv++;
1931
1932 /*
1933 * As part of zfs_expand_proplist(), we keep track of the maximum column
1934 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1935 * need to know the maximum name length. However, the user likely did
1936 * not specify 'name' as one of the properties to fetch, so we need to
1937 * make sure we always include at least this property for
1938 * print_get_headers() to work properly.
1939 */
1940 if (cb.cb_proplist != NULL) {
1941 fake_name.pl_prop = ZFS_PROP_NAME;
1942 fake_name.pl_width = strlen(gettext("NAME"));
1943 fake_name.pl_next = cb.cb_proplist;
1944 cb.cb_proplist = &fake_name;
1945 }
1946
1947 cb.cb_first = B_TRUE;
1948
1949 /* run for each object */
1950 ret = zfs_for_each(argc, argv, flags, types, NULL,
1951 &cb.cb_proplist, limit, get_callback, &cb);
1952
1953 if (cb.cb_proplist == &fake_name)
1954 zprop_free_list(fake_name.pl_next);
1955 else
1956 zprop_free_list(cb.cb_proplist);
1957
1958 return (ret);
1959 }
1960
1961 /*
1962 * inherit [-rS] <property> <fs|vol> ...
1963 *
1964 * -r Recurse over all children
1965 * -S Revert to received value, if any
1966 *
1967 * For each dataset specified on the command line, inherit the given property
1968 * from its parent. Inheriting a property at the pool level will cause it to
1969 * use the default value. The '-r' flag will recurse over all children, and is
1970 * useful for setting a property on a hierarchy-wide basis, regardless of any
1971 * local modifications for each dataset.
1972 */
1973
1974 typedef struct inherit_cbdata {
1975 const char *cb_propname;
1976 boolean_t cb_received;
1977 } inherit_cbdata_t;
1978
1979 static int
1980 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1981 {
1982 inherit_cbdata_t *cb = data;
1983 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1984
1985 /*
1986 * If we're doing it recursively, then ignore properties that
1987 * are not valid for this type of dataset.
1988 */
1989 if (prop != ZPROP_INVAL &&
1990 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE))
1991 return (0);
1992
1993 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1994 }
1995
1996 static int
1997 inherit_cb(zfs_handle_t *zhp, void *data)
1998 {
1999 inherit_cbdata_t *cb = data;
2000
2001 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
2002 }
2003
2004 static int
2005 zfs_do_inherit(int argc, char **argv)
2006 {
2007 int c;
2008 zfs_prop_t prop;
2009 inherit_cbdata_t cb = { 0 };
2010 char *propname;
2011 int ret = 0;
2012 int flags = 0;
2013 boolean_t received = B_FALSE;
2014
2015 /* check options */
2016 while ((c = getopt(argc, argv, "rS")) != -1) {
2017 switch (c) {
2018 case 'r':
2019 flags |= ZFS_ITER_RECURSE;
2020 break;
2021 case 'S':
2022 received = B_TRUE;
2023 break;
2024 case '?':
2025 default:
2026 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2027 optopt);
2028 usage(B_FALSE);
2029 }
2030 }
2031
2032 argc -= optind;
2033 argv += optind;
2034
2035 /* check number of arguments */
2036 if (argc < 1) {
2037 (void) fprintf(stderr, gettext("missing property argument\n"));
2038 usage(B_FALSE);
2039 }
2040 if (argc < 2) {
2041 (void) fprintf(stderr, gettext("missing dataset argument\n"));
2042 usage(B_FALSE);
2043 }
2044
2045 propname = argv[0];
2046 argc--;
2047 argv++;
2048
2049 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
2050 if (zfs_prop_readonly(prop)) {
2051 (void) fprintf(stderr, gettext(
2052 "%s property is read-only\n"),
2053 propname);
2054 return (1);
2055 }
2056 if (!zfs_prop_inheritable(prop) && !received) {
2057 (void) fprintf(stderr, gettext("'%s' property cannot "
2058 "be inherited\n"), propname);
2059 if (prop == ZFS_PROP_QUOTA ||
2060 prop == ZFS_PROP_RESERVATION ||
2061 prop == ZFS_PROP_REFQUOTA ||
2062 prop == ZFS_PROP_REFRESERVATION) {
2063 (void) fprintf(stderr, gettext("use 'zfs set "
2064 "%s=none' to clear\n"), propname);
2065 (void) fprintf(stderr, gettext("use 'zfs "
2066 "inherit -S %s' to revert to received "
2067 "value\n"), propname);
2068 }
2069 return (1);
2070 }
2071 if (received && (prop == ZFS_PROP_VOLSIZE ||
2072 prop == ZFS_PROP_VERSION)) {
2073 (void) fprintf(stderr, gettext("'%s' property cannot "
2074 "be reverted to a received value\n"), propname);
2075 return (1);
2076 }
2077 } else if (!zfs_prop_user(propname)) {
2078 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
2079 propname);
2080 usage(B_FALSE);
2081 }
2082
2083 cb.cb_propname = propname;
2084 cb.cb_received = received;
2085
2086 if (flags & ZFS_ITER_RECURSE) {
2087 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
2088 NULL, NULL, 0, inherit_recurse_cb, &cb);
2089 } else {
2090 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
2091 NULL, NULL, 0, inherit_cb, &cb);
2092 }
2093
2094 return (ret);
2095 }
2096
2097 typedef struct upgrade_cbdata {
2098 uint64_t cb_numupgraded;
2099 uint64_t cb_numsamegraded;
2100 uint64_t cb_numfailed;
2101 uint64_t cb_version;
2102 boolean_t cb_newer;
2103 boolean_t cb_foundone;
2104 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN];
2105 } upgrade_cbdata_t;
2106
2107 static int
2108 same_pool(zfs_handle_t *zhp, const char *name)
2109 {
2110 int len1 = strcspn(name, "/@");
2111 const char *zhname = zfs_get_name(zhp);
2112 int len2 = strcspn(zhname, "/@");
2113
2114 if (len1 != len2)
2115 return (B_FALSE);
2116 return (strncmp(name, zhname, len1) == 0);
2117 }
2118
2119 static int
2120 upgrade_list_callback(zfs_handle_t *zhp, void *data)
2121 {
2122 upgrade_cbdata_t *cb = data;
2123 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2124
2125 /* list if it's old/new */
2126 if ((!cb->cb_newer && version < ZPL_VERSION) ||
2127 (cb->cb_newer && version > ZPL_VERSION)) {
2128 char *str;
2129 if (cb->cb_newer) {
2130 str = gettext("The following filesystems are "
2131 "formatted using a newer software version and\n"
2132 "cannot be accessed on the current system.\n\n");
2133 } else {
2134 str = gettext("The following filesystems are "
2135 "out of date, and can be upgraded. After being\n"
2136 "upgraded, these filesystems (and any 'zfs send' "
2137 "streams generated from\n"
2138 "subsequent snapshots) will no longer be "
2139 "accessible by older software versions.\n\n");
2140 }
2141
2142 if (!cb->cb_foundone) {
2143 (void) puts(str);
2144 (void) printf(gettext("VER FILESYSTEM\n"));
2145 (void) printf(gettext("--- ------------\n"));
2146 cb->cb_foundone = B_TRUE;
2147 }
2148
2149 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
2150 }
2151
2152 return (0);
2153 }
2154
2155 static int
2156 upgrade_set_callback(zfs_handle_t *zhp, void *data)
2157 {
2158 upgrade_cbdata_t *cb = data;
2159 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
2160 int needed_spa_version;
2161 int spa_version;
2162
2163 if (zfs_spa_version(zhp, &spa_version) < 0)
2164 return (-1);
2165
2166 needed_spa_version = zfs_spa_version_map(cb->cb_version);
2167
2168 if (needed_spa_version < 0)
2169 return (-1);
2170
2171 if (spa_version < needed_spa_version) {
2172 /* can't upgrade */
2173 (void) printf(gettext("%s: can not be "
2174 "upgraded; the pool version needs to first "
2175 "be upgraded\nto version %d\n\n"),
2176 zfs_get_name(zhp), needed_spa_version);
2177 cb->cb_numfailed++;
2178 return (0);
2179 }
2180
2181 /* upgrade */
2182 if (version < cb->cb_version) {
2183 char verstr[16];
2184 (void) snprintf(verstr, sizeof (verstr),
2185 "%llu", (u_longlong_t)cb->cb_version);
2186 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
2187 /*
2188 * If they did "zfs upgrade -a", then we could
2189 * be doing ioctls to different pools. We need
2190 * to log this history once to each pool, and bypass
2191 * the normal history logging that happens in main().
2192 */
2193 (void) zpool_log_history(g_zfs, history_str);
2194 log_history = B_FALSE;
2195 }
2196 if (zfs_prop_set(zhp, "version", verstr) == 0)
2197 cb->cb_numupgraded++;
2198 else
2199 cb->cb_numfailed++;
2200 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
2201 } else if (version > cb->cb_version) {
2202 /* can't downgrade */
2203 (void) printf(gettext("%s: can not be downgraded; "
2204 "it is already at version %u\n"),
2205 zfs_get_name(zhp), version);
2206 cb->cb_numfailed++;
2207 } else {
2208 cb->cb_numsamegraded++;
2209 }
2210 return (0);
2211 }
2212
2213 /*
2214 * zfs upgrade
2215 * zfs upgrade -v
2216 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
2217 */
2218 static int
2219 zfs_do_upgrade(int argc, char **argv)
2220 {
2221 boolean_t all = B_FALSE;
2222 boolean_t showversions = B_FALSE;
2223 int ret = 0;
2224 upgrade_cbdata_t cb = { 0 };
2225 signed char c;
2226 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
2227
2228 /* check options */
2229 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
2230 switch (c) {
2231 case 'r':
2232 flags |= ZFS_ITER_RECURSE;
2233 break;
2234 case 'v':
2235 showversions = B_TRUE;
2236 break;
2237 case 'V':
2238 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2239 optarg, &cb.cb_version) != 0) {
2240 (void) fprintf(stderr,
2241 gettext("invalid version %s\n"), optarg);
2242 usage(B_FALSE);
2243 }
2244 break;
2245 case 'a':
2246 all = B_TRUE;
2247 break;
2248 case '?':
2249 default:
2250 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2251 optopt);
2252 usage(B_FALSE);
2253 }
2254 }
2255
2256 argc -= optind;
2257 argv += optind;
2258
2259 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2260 usage(B_FALSE);
2261 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2262 cb.cb_version || argc))
2263 usage(B_FALSE);
2264 if ((all || argc) && (showversions))
2265 usage(B_FALSE);
2266 if (all && argc)
2267 usage(B_FALSE);
2268
2269 if (showversions) {
2270 /* Show info on available versions. */
2271 (void) printf(gettext("The following filesystem versions are "
2272 "supported:\n\n"));
2273 (void) printf(gettext("VER DESCRIPTION\n"));
2274 (void) printf("--- -----------------------------------------"
2275 "---------------\n");
2276 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2277 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2278 (void) printf(gettext(" 3 Case insensitive and filesystem "
2279 "user identifier (FUID)\n"));
2280 (void) printf(gettext(" 4 userquota, groupquota "
2281 "properties\n"));
2282 (void) printf(gettext(" 5 System attributes\n"));
2283 (void) printf(gettext("\nFor more information on a particular "
2284 "version, including supported releases,\n"));
2285 (void) printf("see the ZFS Administration Guide.\n\n");
2286 ret = 0;
2287 } else if (argc || all) {
2288 /* Upgrade filesystems */
2289 if (cb.cb_version == 0)
2290 cb.cb_version = ZPL_VERSION;
2291 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2292 NULL, NULL, 0, upgrade_set_callback, &cb);
2293 (void) printf(gettext("%llu filesystems upgraded\n"),
2294 (u_longlong_t)cb.cb_numupgraded);
2295 if (cb.cb_numsamegraded) {
2296 (void) printf(gettext("%llu filesystems already at "
2297 "this version\n"),
2298 (u_longlong_t)cb.cb_numsamegraded);
2299 }
2300 if (cb.cb_numfailed != 0)
2301 ret = 1;
2302 } else {
2303 /* List old-version filesystems */
2304 boolean_t found;
2305 (void) printf(gettext("This system is currently running "
2306 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2307
2308 flags |= ZFS_ITER_RECURSE;
2309 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2310 NULL, NULL, 0, upgrade_list_callback, &cb);
2311
2312 found = cb.cb_foundone;
2313 cb.cb_foundone = B_FALSE;
2314 cb.cb_newer = B_TRUE;
2315
2316 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2317 NULL, NULL, 0, upgrade_list_callback, &cb);
2318
2319 if (!cb.cb_foundone && !found) {
2320 (void) printf(gettext("All filesystems are "
2321 "formatted with the current version.\n"));
2322 }
2323 }
2324
2325 return (ret);
2326 }
2327
2328 /*
2329 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2330 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2331 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2332 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2333 * zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...]
2334 * [-S field [-S field]...] filesystem | snapshot
2335 *
2336 * -H Scripted mode; elide headers and separate columns by tabs.
2337 * -i Translate SID to POSIX ID.
2338 * -n Print numeric ID instead of user/group name.
2339 * -o Control which fields to display.
2340 * -p Use exact (parsable) numeric output.
2341 * -s Specify sort columns, descending order.
2342 * -S Specify sort columns, ascending order.
2343 * -t Control which object types to display.
2344 *
2345 * Displays space consumed by, and quotas on, each user in the specified
2346 * filesystem or snapshot.
2347 */
2348
2349 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2350 enum us_field_types {
2351 USFIELD_TYPE,
2352 USFIELD_NAME,
2353 USFIELD_USED,
2354 USFIELD_QUOTA,
2355 USFIELD_OBJUSED,
2356 USFIELD_OBJQUOTA
2357 };
2358 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA",
2359 "OBJUSED", "OBJQUOTA" };
2360 static char *us_field_names[] = { "type", "name", "used", "quota",
2361 "objused", "objquota" };
2362 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2363
2364 #define USTYPE_PSX_GRP (1 << 0)
2365 #define USTYPE_PSX_USR (1 << 1)
2366 #define USTYPE_SMB_GRP (1 << 2)
2367 #define USTYPE_SMB_USR (1 << 3)
2368 #define USTYPE_PROJ (1 << 4)
2369 #define USTYPE_ALL \
2370 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR | \
2371 USTYPE_PROJ)
2372
2373 static int us_type_bits[] = {
2374 USTYPE_PSX_GRP,
2375 USTYPE_PSX_USR,
2376 USTYPE_SMB_GRP,
2377 USTYPE_SMB_USR,
2378 USTYPE_ALL
2379 };
2380 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup",
2381 "smbuser", "all" };
2382
2383 typedef struct us_node {
2384 nvlist_t *usn_nvl;
2385 uu_avl_node_t usn_avlnode;
2386 uu_list_node_t usn_listnode;
2387 } us_node_t;
2388
2389 typedef struct us_cbdata {
2390 nvlist_t **cb_nvlp;
2391 uu_avl_pool_t *cb_avl_pool;
2392 uu_avl_t *cb_avl;
2393 boolean_t cb_numname;
2394 boolean_t cb_nicenum;
2395 boolean_t cb_sid2posix;
2396 zfs_userquota_prop_t cb_prop;
2397 zfs_sort_column_t *cb_sortcol;
2398 size_t cb_width[USFIELD_LAST];
2399 } us_cbdata_t;
2400
2401 static boolean_t us_populated = B_FALSE;
2402
2403 typedef struct {
2404 zfs_sort_column_t *si_sortcol;
2405 boolean_t si_numname;
2406 } us_sort_info_t;
2407
2408 static int
2409 us_field_index(char *field)
2410 {
2411 int i;
2412
2413 for (i = 0; i < USFIELD_LAST; i++) {
2414 if (strcmp(field, us_field_names[i]) == 0)
2415 return (i);
2416 }
2417
2418 return (-1);
2419 }
2420
2421 static int
2422 us_compare(const void *larg, const void *rarg, void *unused)
2423 {
2424 const us_node_t *l = larg;
2425 const us_node_t *r = rarg;
2426 us_sort_info_t *si = (us_sort_info_t *)unused;
2427 zfs_sort_column_t *sortcol = si->si_sortcol;
2428 boolean_t numname = si->si_numname;
2429 nvlist_t *lnvl = l->usn_nvl;
2430 nvlist_t *rnvl = r->usn_nvl;
2431 int rc = 0;
2432 boolean_t lvb, rvb;
2433
2434 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2435 char *lvstr = "";
2436 char *rvstr = "";
2437 uint32_t lv32 = 0;
2438 uint32_t rv32 = 0;
2439 uint64_t lv64 = 0;
2440 uint64_t rv64 = 0;
2441 zfs_prop_t prop = sortcol->sc_prop;
2442 const char *propname = NULL;
2443 boolean_t reverse = sortcol->sc_reverse;
2444
2445 switch (prop) {
2446 case ZFS_PROP_TYPE:
2447 propname = "type";
2448 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2449 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2450 if (rv32 != lv32)
2451 rc = (rv32 < lv32) ? 1 : -1;
2452 break;
2453 case ZFS_PROP_NAME:
2454 propname = "name";
2455 if (numname) {
2456 compare_nums:
2457 (void) nvlist_lookup_uint64(lnvl, propname,
2458 &lv64);
2459 (void) nvlist_lookup_uint64(rnvl, propname,
2460 &rv64);
2461 if (rv64 != lv64)
2462 rc = (rv64 < lv64) ? 1 : -1;
2463 } else {
2464 if ((nvlist_lookup_string(lnvl, propname,
2465 &lvstr) == ENOENT) ||
2466 (nvlist_lookup_string(rnvl, propname,
2467 &rvstr) == ENOENT)) {
2468 goto compare_nums;
2469 }
2470 rc = strcmp(lvstr, rvstr);
2471 }
2472 break;
2473 case ZFS_PROP_USED:
2474 case ZFS_PROP_QUOTA:
2475 if (!us_populated)
2476 break;
2477 if (prop == ZFS_PROP_USED)
2478 propname = "used";
2479 else
2480 propname = "quota";
2481 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2482 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2483 if (rv64 != lv64)
2484 rc = (rv64 < lv64) ? 1 : -1;
2485 break;
2486
2487 default:
2488 break;
2489 }
2490
2491 if (rc != 0) {
2492 if (rc < 0)
2493 return (reverse ? 1 : -1);
2494 else
2495 return (reverse ? -1 : 1);
2496 }
2497 }
2498
2499 /*
2500 * If entries still seem to be the same, check if they are of the same
2501 * type (smbentity is added only if we are doing SID to POSIX ID
2502 * translation where we can have duplicate type/name combinations).
2503 */
2504 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2505 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2506 lvb != rvb)
2507 return (lvb < rvb ? -1 : 1);
2508
2509 return (0);
2510 }
2511
2512 static boolean_t
2513 zfs_prop_is_user(unsigned p)
2514 {
2515 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA ||
2516 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA);
2517 }
2518
2519 static boolean_t
2520 zfs_prop_is_group(unsigned p)
2521 {
2522 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA ||
2523 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA);
2524 }
2525
2526 static boolean_t
2527 zfs_prop_is_project(unsigned p)
2528 {
2529 return (p == ZFS_PROP_PROJECTUSED || p == ZFS_PROP_PROJECTQUOTA ||
2530 p == ZFS_PROP_PROJECTOBJUSED || p == ZFS_PROP_PROJECTOBJQUOTA);
2531 }
2532
2533 static inline const char *
2534 us_type2str(unsigned field_type)
2535 {
2536 switch (field_type) {
2537 case USTYPE_PSX_USR:
2538 return ("POSIX User");
2539 case USTYPE_PSX_GRP:
2540 return ("POSIX Group");
2541 case USTYPE_SMB_USR:
2542 return ("SMB User");
2543 case USTYPE_SMB_GRP:
2544 return ("SMB Group");
2545 case USTYPE_PROJ:
2546 return ("Project");
2547 default:
2548 return ("Undefined");
2549 }
2550 }
2551
2552 static int
2553 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2554 {
2555 us_cbdata_t *cb = (us_cbdata_t *)arg;
2556 zfs_userquota_prop_t prop = cb->cb_prop;
2557 char *name = NULL;
2558 char *propname;
2559 char sizebuf[32];
2560 us_node_t *node;
2561 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2562 uu_avl_t *avl = cb->cb_avl;
2563 uu_avl_index_t idx;
2564 nvlist_t *props;
2565 us_node_t *n;
2566 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2567 unsigned type = 0;
2568 const char *typestr;
2569 size_t namelen;
2570 size_t typelen;
2571 size_t sizelen;
2572 int typeidx, nameidx, sizeidx;
2573 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2574 boolean_t smbentity = B_FALSE;
2575
2576 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2577 nomem();
2578 node = safe_malloc(sizeof (us_node_t));
2579 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2580 node->usn_nvl = props;
2581
2582 if (domain != NULL && domain[0] != '\0') {
2583 #ifdef HAVE_IDMAP
2584 /* SMB */
2585 char sid[MAXNAMELEN + 32];
2586 uid_t id;
2587 uint64_t classes;
2588 int err;
2589 directory_error_t e;
2590
2591 smbentity = B_TRUE;
2592
2593 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2594
2595 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2596 type = USTYPE_SMB_GRP;
2597 err = sid_to_id(sid, B_FALSE, &id);
2598 } else {
2599 type = USTYPE_SMB_USR;
2600 err = sid_to_id(sid, B_TRUE, &id);
2601 }
2602
2603 if (err == 0) {
2604 rid = id;
2605 if (!cb->cb_sid2posix) {
2606 e = directory_name_from_sid(NULL, sid, &name,
2607 &classes);
2608 if (e != NULL)
2609 directory_error_free(e);
2610 if (name == NULL)
2611 name = sid;
2612 }
2613 }
2614 #else
2615 nvlist_free(props);
2616 free(node);
2617
2618 return (-1);
2619 #endif /* HAVE_IDMAP */
2620 }
2621
2622 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2623 /* POSIX or -i */
2624 if (zfs_prop_is_group(prop)) {
2625 type = USTYPE_PSX_GRP;
2626 if (!cb->cb_numname) {
2627 struct group *g;
2628
2629 if ((g = getgrgid(rid)) != NULL)
2630 name = g->gr_name;
2631 }
2632 } else if (zfs_prop_is_user(prop)) {
2633 type = USTYPE_PSX_USR;
2634 if (!cb->cb_numname) {
2635 struct passwd *p;
2636
2637 if ((p = getpwuid(rid)) != NULL)
2638 name = p->pw_name;
2639 }
2640 } else {
2641 type = USTYPE_PROJ;
2642 }
2643 }
2644
2645 /*
2646 * Make sure that the type/name combination is unique when doing
2647 * SID to POSIX ID translation (hence changing the type from SMB to
2648 * POSIX).
2649 */
2650 if (cb->cb_sid2posix &&
2651 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2652 nomem();
2653
2654 /* Calculate/update width of TYPE field */
2655 typestr = us_type2str(type);
2656 typelen = strlen(gettext(typestr));
2657 typeidx = us_field_index("type");
2658 if (typelen > cb->cb_width[typeidx])
2659 cb->cb_width[typeidx] = typelen;
2660 if (nvlist_add_uint32(props, "type", type) != 0)
2661 nomem();
2662
2663 /* Calculate/update width of NAME field */
2664 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2665 if (nvlist_add_uint64(props, "name", rid) != 0)
2666 nomem();
2667 namelen = snprintf(NULL, 0, "%u", rid);
2668 } else {
2669 if (nvlist_add_string(props, "name", name) != 0)
2670 nomem();
2671 namelen = strlen(name);
2672 }
2673 nameidx = us_field_index("name");
2674 if (nameidx >= 0 && namelen > cb->cb_width[nameidx])
2675 cb->cb_width[nameidx] = namelen;
2676
2677 /*
2678 * Check if this type/name combination is in the list and update it;
2679 * otherwise add new node to the list.
2680 */
2681 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2682 uu_avl_insert(avl, node, idx);
2683 } else {
2684 nvlist_free(props);
2685 free(node);
2686 node = n;
2687 props = node->usn_nvl;
2688 }
2689
2690 /* Calculate/update width of USED/QUOTA fields */
2691 if (cb->cb_nicenum) {
2692 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED ||
2693 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA ||
2694 prop == ZFS_PROP_PROJECTUSED ||
2695 prop == ZFS_PROP_PROJECTQUOTA) {
2696 zfs_nicebytes(space, sizebuf, sizeof (sizebuf));
2697 } else {
2698 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2699 }
2700 } else {
2701 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
2702 (u_longlong_t)space);
2703 }
2704 sizelen = strlen(sizebuf);
2705 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED ||
2706 prop == ZFS_PROP_PROJECTUSED) {
2707 propname = "used";
2708 if (!nvlist_exists(props, "quota"))
2709 (void) nvlist_add_uint64(props, "quota", 0);
2710 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA ||
2711 prop == ZFS_PROP_PROJECTQUOTA) {
2712 propname = "quota";
2713 if (!nvlist_exists(props, "used"))
2714 (void) nvlist_add_uint64(props, "used", 0);
2715 } else if (prop == ZFS_PROP_USEROBJUSED ||
2716 prop == ZFS_PROP_GROUPOBJUSED || prop == ZFS_PROP_PROJECTOBJUSED) {
2717 propname = "objused";
2718 if (!nvlist_exists(props, "objquota"))
2719 (void) nvlist_add_uint64(props, "objquota", 0);
2720 } else if (prop == ZFS_PROP_USEROBJQUOTA ||
2721 prop == ZFS_PROP_GROUPOBJQUOTA ||
2722 prop == ZFS_PROP_PROJECTOBJQUOTA) {
2723 propname = "objquota";
2724 if (!nvlist_exists(props, "objused"))
2725 (void) nvlist_add_uint64(props, "objused", 0);
2726 } else {
2727 return (-1);
2728 }
2729 sizeidx = us_field_index(propname);
2730 if (sizeidx >= 0 && sizelen > cb->cb_width[sizeidx])
2731 cb->cb_width[sizeidx] = sizelen;
2732
2733 if (nvlist_add_uint64(props, propname, space) != 0)
2734 nomem();
2735
2736 return (0);
2737 }
2738
2739 static void
2740 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2741 size_t *width, us_node_t *node)
2742 {
2743 nvlist_t *nvl = node->usn_nvl;
2744 char valstr[MAXNAMELEN];
2745 boolean_t first = B_TRUE;
2746 int cfield = 0;
2747 int field;
2748 uint32_t ustype;
2749
2750 /* Check type */
2751 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2752 if (!(ustype & types))
2753 return;
2754
2755 while ((field = fields[cfield]) != USFIELD_LAST) {
2756 nvpair_t *nvp = NULL;
2757 data_type_t type;
2758 uint32_t val32;
2759 uint64_t val64;
2760 char *strval = "-";
2761
2762 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2763 if (strcmp(nvpair_name(nvp),
2764 us_field_names[field]) == 0)
2765 break;
2766 }
2767
2768 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp);
2769 switch (type) {
2770 case DATA_TYPE_UINT32:
2771 (void) nvpair_value_uint32(nvp, &val32);
2772 break;
2773 case DATA_TYPE_UINT64:
2774 (void) nvpair_value_uint64(nvp, &val64);
2775 break;
2776 case DATA_TYPE_STRING:
2777 (void) nvpair_value_string(nvp, &strval);
2778 break;
2779 case DATA_TYPE_UNKNOWN:
2780 break;
2781 default:
2782 (void) fprintf(stderr, "invalid data type\n");
2783 }
2784
2785 switch (field) {
2786 case USFIELD_TYPE:
2787 if (type == DATA_TYPE_UINT32)
2788 strval = (char *)us_type2str(val32);
2789 break;
2790 case USFIELD_NAME:
2791 if (type == DATA_TYPE_UINT64) {
2792 (void) sprintf(valstr, "%llu",
2793 (u_longlong_t)val64);
2794 strval = valstr;
2795 }
2796 break;
2797 case USFIELD_USED:
2798 case USFIELD_QUOTA:
2799 if (type == DATA_TYPE_UINT64) {
2800 if (parsable) {
2801 (void) sprintf(valstr, "%llu",
2802 (u_longlong_t)val64);
2803 strval = valstr;
2804 } else if (field == USFIELD_QUOTA &&
2805 val64 == 0) {
2806 strval = "none";
2807 } else {
2808 zfs_nicebytes(val64, valstr,
2809 sizeof (valstr));
2810 strval = valstr;
2811 }
2812 }
2813 break;
2814 case USFIELD_OBJUSED:
2815 case USFIELD_OBJQUOTA:
2816 if (type == DATA_TYPE_UINT64) {
2817 if (parsable) {
2818 (void) sprintf(valstr, "%llu",
2819 (u_longlong_t)val64);
2820 strval = valstr;
2821 } else if (field == USFIELD_OBJQUOTA &&
2822 val64 == 0) {
2823 strval = "none";
2824 } else {
2825 zfs_nicenum(val64, valstr,
2826 sizeof (valstr));
2827 strval = valstr;
2828 }
2829 }
2830 break;
2831 }
2832
2833 if (!first) {
2834 if (scripted)
2835 (void) printf("\t");
2836 else
2837 (void) printf(" ");
2838 }
2839 if (scripted)
2840 (void) printf("%s", strval);
2841 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2842 (void) printf("%-*s", (int)width[field], strval);
2843 else
2844 (void) printf("%*s", (int)width[field], strval);
2845
2846 first = B_FALSE;
2847 cfield++;
2848 }
2849
2850 (void) printf("\n");
2851 }
2852
2853 static void
2854 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2855 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2856 {
2857 us_node_t *node;
2858 const char *col;
2859 int cfield = 0;
2860 int field;
2861
2862 if (!scripted) {
2863 boolean_t first = B_TRUE;
2864
2865 while ((field = fields[cfield]) != USFIELD_LAST) {
2866 col = gettext(us_field_hdr[field]);
2867 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2868 (void) printf(first ? "%-*s" : " %-*s",
2869 (int)width[field], col);
2870 } else {
2871 (void) printf(first ? "%*s" : " %*s",
2872 (int)width[field], col);
2873 }
2874 first = B_FALSE;
2875 cfield++;
2876 }
2877 (void) printf("\n");
2878 }
2879
2880 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2881 print_us_node(scripted, parsable, fields, types, width, node);
2882 if (rmnode)
2883 nvlist_free(node->usn_nvl);
2884 }
2885 }
2886
2887 static int
2888 zfs_do_userspace(int argc, char **argv)
2889 {
2890 zfs_handle_t *zhp;
2891 zfs_userquota_prop_t p;
2892 uu_avl_pool_t *avl_pool;
2893 uu_avl_t *avl_tree;
2894 uu_avl_walk_t *walk;
2895 char *delim;
2896 char deffields[] = "type,name,used,quota,objused,objquota";
2897 char *ofield = NULL;
2898 char *tfield = NULL;
2899 int cfield = 0;
2900 int fields[256];
2901 int i;
2902 boolean_t scripted = B_FALSE;
2903 boolean_t prtnum = B_FALSE;
2904 boolean_t parsable = B_FALSE;
2905 boolean_t sid2posix = B_FALSE;
2906 int ret = 0;
2907 int c;
2908 zfs_sort_column_t *sortcol = NULL;
2909 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2910 us_cbdata_t cb;
2911 us_node_t *node;
2912 us_node_t *rmnode;
2913 uu_list_pool_t *listpool;
2914 uu_list_t *list;
2915 uu_avl_index_t idx = 0;
2916 uu_list_index_t idx2 = 0;
2917
2918 if (argc < 2)
2919 usage(B_FALSE);
2920
2921 if (strcmp(argv[0], "groupspace") == 0) {
2922 /* Toggle default group types */
2923 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2924 } else if (strcmp(argv[0], "projectspace") == 0) {
2925 types = USTYPE_PROJ;
2926 prtnum = B_TRUE;
2927 }
2928
2929 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2930 switch (c) {
2931 case 'n':
2932 if (types == USTYPE_PROJ) {
2933 (void) fprintf(stderr,
2934 gettext("invalid option 'n'\n"));
2935 usage(B_FALSE);
2936 }
2937 prtnum = B_TRUE;
2938 break;
2939 case 'H':
2940 scripted = B_TRUE;
2941 break;
2942 case 'p':
2943 parsable = B_TRUE;
2944 break;
2945 case 'o':
2946 ofield = optarg;
2947 break;
2948 case 's':
2949 case 'S':
2950 if (zfs_add_sort_column(&sortcol, optarg,
2951 c == 's' ? B_FALSE : B_TRUE) != 0) {
2952 (void) fprintf(stderr,
2953 gettext("invalid field '%s'\n"), optarg);
2954 usage(B_FALSE);
2955 }
2956 break;
2957 case 't':
2958 if (types == USTYPE_PROJ) {
2959 (void) fprintf(stderr,
2960 gettext("invalid option 't'\n"));
2961 usage(B_FALSE);
2962 }
2963 tfield = optarg;
2964 break;
2965 case 'i':
2966 if (types == USTYPE_PROJ) {
2967 (void) fprintf(stderr,
2968 gettext("invalid option 'i'\n"));
2969 usage(B_FALSE);
2970 }
2971 sid2posix = B_TRUE;
2972 break;
2973 case ':':
2974 (void) fprintf(stderr, gettext("missing argument for "
2975 "'%c' option\n"), optopt);
2976 usage(B_FALSE);
2977 break;
2978 case '?':
2979 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2980 optopt);
2981 usage(B_FALSE);
2982 }
2983 }
2984
2985 argc -= optind;
2986 argv += optind;
2987
2988 if (argc < 1) {
2989 (void) fprintf(stderr, gettext("missing dataset name\n"));
2990 usage(B_FALSE);
2991 }
2992 if (argc > 1) {
2993 (void) fprintf(stderr, gettext("too many arguments\n"));
2994 usage(B_FALSE);
2995 }
2996
2997 /* Use default output fields if not specified using -o */
2998 if (ofield == NULL)
2999 ofield = deffields;
3000 do {
3001 if ((delim = strchr(ofield, ',')) != NULL)
3002 *delim = '\0';
3003 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
3004 (void) fprintf(stderr, gettext("invalid type '%s' "
3005 "for -o option\n"), ofield);
3006 return (-1);
3007 }
3008 if (delim != NULL)
3009 ofield = delim + 1;
3010 } while (delim != NULL);
3011 fields[cfield] = USFIELD_LAST;
3012
3013 /* Override output types (-t option) */
3014 if (tfield != NULL) {
3015 types = 0;
3016
3017 do {
3018 boolean_t found = B_FALSE;
3019
3020 if ((delim = strchr(tfield, ',')) != NULL)
3021 *delim = '\0';
3022 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
3023 i++) {
3024 if (strcmp(tfield, us_type_names[i]) == 0) {
3025 found = B_TRUE;
3026 types |= us_type_bits[i];
3027 break;
3028 }
3029 }
3030 if (!found) {
3031 (void) fprintf(stderr, gettext("invalid type "
3032 "'%s' for -t option\n"), tfield);
3033 return (-1);
3034 }
3035 if (delim != NULL)
3036 tfield = delim + 1;
3037 } while (delim != NULL);
3038 }
3039
3040 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
3041 return (1);
3042
3043 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
3044 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
3045 nomem();
3046 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
3047 nomem();
3048
3049 /* Always add default sorting columns */
3050 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
3051 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
3052
3053 cb.cb_sortcol = sortcol;
3054 cb.cb_numname = prtnum;
3055 cb.cb_nicenum = !parsable;
3056 cb.cb_avl_pool = avl_pool;
3057 cb.cb_avl = avl_tree;
3058 cb.cb_sid2posix = sid2posix;
3059
3060 for (i = 0; i < USFIELD_LAST; i++)
3061 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
3062
3063 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
3064 if ((zfs_prop_is_user(p) &&
3065 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
3066 (zfs_prop_is_group(p) &&
3067 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))) ||
3068 (zfs_prop_is_project(p) && types != USTYPE_PROJ))
3069 continue;
3070
3071 cb.cb_prop = p;
3072 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
3073 return (ret);
3074 }
3075
3076 /* Sort the list */
3077 if ((node = uu_avl_first(avl_tree)) == NULL)
3078 return (0);
3079
3080 us_populated = B_TRUE;
3081
3082 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
3083 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
3084 list = uu_list_create(listpool, NULL, UU_DEFAULT);
3085 uu_list_node_init(node, &node->usn_listnode, listpool);
3086
3087 while (node != NULL) {
3088 rmnode = node;
3089 node = uu_avl_next(avl_tree, node);
3090 uu_avl_remove(avl_tree, rmnode);
3091 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
3092 uu_list_insert(list, rmnode, idx2);
3093 }
3094
3095 for (node = uu_list_first(list); node != NULL;
3096 node = uu_list_next(list, node)) {
3097 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
3098
3099 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
3100 uu_avl_insert(avl_tree, node, idx);
3101 }
3102
3103 uu_list_destroy(list);
3104 uu_list_pool_destroy(listpool);
3105
3106 /* Print and free node nvlist memory */
3107 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
3108 cb.cb_avl);
3109
3110 zfs_free_sort_columns(sortcol);
3111
3112 /* Clean up the AVL tree */
3113 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
3114 nomem();
3115
3116 while ((node = uu_avl_walk_next(walk)) != NULL) {
3117 uu_avl_remove(cb.cb_avl, node);
3118 free(node);
3119 }
3120
3121 uu_avl_walk_end(walk);
3122 uu_avl_destroy(avl_tree);
3123 uu_avl_pool_destroy(avl_pool);
3124
3125 return (ret);
3126 }
3127
3128 /*
3129 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property]
3130 * [-t type[,...]] [filesystem|volume|snapshot] ...
3131 *
3132 * -H Scripted mode; elide headers and separate columns by tabs
3133 * -p Display values in parsable (literal) format.
3134 * -r Recurse over all children
3135 * -d Limit recursion by depth.
3136 * -o Control which fields to display.
3137 * -s Specify sort columns, descending order.
3138 * -S Specify sort columns, ascending order.
3139 * -t Control which object types to display.
3140 *
3141 * When given no arguments, list all filesystems in the system.
3142 * Otherwise, list the specified datasets, optionally recursing down them if
3143 * '-r' is specified.
3144 */
3145 typedef struct list_cbdata {
3146 boolean_t cb_first;
3147 boolean_t cb_literal;
3148 boolean_t cb_scripted;
3149 zprop_list_t *cb_proplist;
3150 } list_cbdata_t;
3151
3152 /*
3153 * Given a list of columns to display, output appropriate headers for each one.
3154 */
3155 static void
3156 print_header(list_cbdata_t *cb)
3157 {
3158 zprop_list_t *pl = cb->cb_proplist;
3159 char headerbuf[ZFS_MAXPROPLEN];
3160 const char *header;
3161 int i;
3162 boolean_t first = B_TRUE;
3163 boolean_t right_justify;
3164
3165 for (; pl != NULL; pl = pl->pl_next) {
3166 if (!first) {
3167 (void) printf(" ");
3168 } else {
3169 first = B_FALSE;
3170 }
3171
3172 right_justify = B_FALSE;
3173 if (pl->pl_prop != ZPROP_INVAL) {
3174 header = zfs_prop_column_name(pl->pl_prop);
3175 right_justify = zfs_prop_align_right(pl->pl_prop);
3176 } else {
3177 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
3178 headerbuf[i] = toupper(pl->pl_user_prop[i]);
3179 headerbuf[i] = '\0';
3180 header = headerbuf;
3181 }
3182
3183 if (pl->pl_next == NULL && !right_justify)
3184 (void) printf("%s", header);
3185 else if (right_justify)
3186 (void) printf("%*s", (int)pl->pl_width, header);
3187 else
3188 (void) printf("%-*s", (int)pl->pl_width, header);
3189 }
3190
3191 (void) printf("\n");
3192 }
3193
3194 /*
3195 * Given a dataset and a list of fields, print out all the properties according
3196 * to the described layout.
3197 */
3198 static void
3199 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb)
3200 {
3201 zprop_list_t *pl = cb->cb_proplist;
3202 boolean_t first = B_TRUE;
3203 char property[ZFS_MAXPROPLEN];
3204 nvlist_t *userprops = zfs_get_user_props(zhp);
3205 nvlist_t *propval;
3206 char *propstr;
3207 boolean_t right_justify;
3208
3209 for (; pl != NULL; pl = pl->pl_next) {
3210 if (!first) {
3211 if (cb->cb_scripted)
3212 (void) printf("\t");
3213 else
3214 (void) printf(" ");
3215 } else {
3216 first = B_FALSE;
3217 }
3218
3219 if (pl->pl_prop == ZFS_PROP_NAME) {
3220 (void) strlcpy(property, zfs_get_name(zhp),
3221 sizeof (property));
3222 propstr = property;
3223 right_justify = zfs_prop_align_right(pl->pl_prop);
3224 } else if (pl->pl_prop != ZPROP_INVAL) {
3225 if (zfs_prop_get(zhp, pl->pl_prop, property,
3226 sizeof (property), NULL, NULL, 0,
3227 cb->cb_literal) != 0)
3228 propstr = "-";
3229 else
3230 propstr = property;
3231 right_justify = zfs_prop_align_right(pl->pl_prop);
3232 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
3233 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
3234 property, sizeof (property), cb->cb_literal) != 0)
3235 propstr = "-";
3236 else
3237 propstr = property;
3238 right_justify = B_TRUE;
3239 } else if (zfs_prop_written(pl->pl_user_prop)) {
3240 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
3241 property, sizeof (property), cb->cb_literal) != 0)
3242 propstr = "-";
3243 else
3244 propstr = property;
3245 right_justify = B_TRUE;
3246 } else {
3247 if (nvlist_lookup_nvlist(userprops,
3248 pl->pl_user_prop, &propval) != 0)
3249 propstr = "-";
3250 else
3251 verify(nvlist_lookup_string(propval,
3252 ZPROP_VALUE, &propstr) == 0);
3253 right_justify = B_FALSE;
3254 }
3255
3256 /*
3257 * If this is being called in scripted mode, or if this is the
3258 * last column and it is left-justified, don't include a width
3259 * format specifier.
3260 */
3261 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
3262 (void) printf("%s", propstr);
3263 else if (right_justify)
3264 (void) printf("%*s", (int)pl->pl_width, propstr);
3265 else
3266 (void) printf("%-*s", (int)pl->pl_width, propstr);
3267 }
3268
3269 (void) printf("\n");
3270 }
3271
3272 /*
3273 * Generic callback function to list a dataset or snapshot.
3274 */
3275 static int
3276 list_callback(zfs_handle_t *zhp, void *data)
3277 {
3278 list_cbdata_t *cbp = data;
3279
3280 if (cbp->cb_first) {
3281 if (!cbp->cb_scripted)
3282 print_header(cbp);
3283 cbp->cb_first = B_FALSE;
3284 }
3285
3286 print_dataset(zhp, cbp);
3287
3288 return (0);
3289 }
3290
3291 static int
3292 zfs_do_list(int argc, char **argv)
3293 {
3294 int c;
3295 static char default_fields[] =
3296 "name,used,available,referenced,mountpoint";
3297 int types = ZFS_TYPE_DATASET;
3298 boolean_t types_specified = B_FALSE;
3299 char *fields = NULL;
3300 list_cbdata_t cb = { 0 };
3301 char *value;
3302 int limit = 0;
3303 int ret = 0;
3304 zfs_sort_column_t *sortcol = NULL;
3305 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
3306
3307 /* check options */
3308 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) {
3309 switch (c) {
3310 case 'o':
3311 fields = optarg;
3312 break;
3313 case 'p':
3314 cb.cb_literal = B_TRUE;
3315 flags |= ZFS_ITER_LITERAL_PROPS;
3316 break;
3317 case 'd':
3318 limit = parse_depth(optarg, &flags);
3319 break;
3320 case 'r':
3321 flags |= ZFS_ITER_RECURSE;
3322 break;
3323 case 'H':
3324 cb.cb_scripted = B_TRUE;
3325 break;
3326 case 's':
3327 if (zfs_add_sort_column(&sortcol, optarg,
3328 B_FALSE) != 0) {
3329 (void) fprintf(stderr,
3330 gettext("invalid property '%s'\n"), optarg);
3331 usage(B_FALSE);
3332 }
3333 break;
3334 case 'S':
3335 if (zfs_add_sort_column(&sortcol, optarg,
3336 B_TRUE) != 0) {
3337 (void) fprintf(stderr,
3338 gettext("invalid property '%s'\n"), optarg);
3339 usage(B_FALSE);
3340 }
3341 break;
3342 case 't':
3343 types = 0;
3344 types_specified = B_TRUE;
3345 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
3346 while (*optarg != '\0') {
3347 static char *type_subopts[] = { "filesystem",
3348 "volume", "snapshot", "snap", "bookmark",
3349 "all", NULL };
3350
3351 switch (getsubopt(&optarg, type_subopts,
3352 &value)) {
3353 case 0:
3354 types |= ZFS_TYPE_FILESYSTEM;
3355 break;
3356 case 1:
3357 types |= ZFS_TYPE_VOLUME;
3358 break;
3359 case 2:
3360 case 3:
3361 types |= ZFS_TYPE_SNAPSHOT;
3362 break;
3363 case 4:
3364 types |= ZFS_TYPE_BOOKMARK;
3365 break;
3366 case 5:
3367 types = ZFS_TYPE_DATASET |
3368 ZFS_TYPE_BOOKMARK;
3369 break;
3370 default:
3371 (void) fprintf(stderr,
3372 gettext("invalid type '%s'\n"),
3373 value);
3374 usage(B_FALSE);
3375 }
3376 }
3377 break;
3378 case ':':
3379 (void) fprintf(stderr, gettext("missing argument for "
3380 "'%c' option\n"), optopt);
3381 usage(B_FALSE);
3382 break;
3383 case '?':
3384 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3385 optopt);
3386 usage(B_FALSE);
3387 }
3388 }
3389
3390 argc -= optind;
3391 argv += optind;
3392
3393 if (fields == NULL)
3394 fields = default_fields;
3395
3396 /*
3397 * If we are only going to list snapshot names and sort by name,
3398 * then we can use faster version.
3399 */
3400 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3401 flags |= ZFS_ITER_SIMPLE;
3402
3403 /*
3404 * If "-o space" and no types were specified, don't display snapshots.
3405 */
3406 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3407 types &= ~ZFS_TYPE_SNAPSHOT;
3408
3409 /*
3410 * If the user specifies '-o all', the zprop_get_list() doesn't
3411 * normally include the name of the dataset. For 'zfs list', we always
3412 * want this property to be first.
3413 */
3414 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3415 != 0)
3416 usage(B_FALSE);
3417
3418 cb.cb_first = B_TRUE;
3419
3420 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3421 limit, list_callback, &cb);
3422
3423 zprop_free_list(cb.cb_proplist);
3424 zfs_free_sort_columns(sortcol);
3425
3426 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3427 (void) fprintf(stderr, gettext("no datasets available\n"));
3428
3429 return (ret);
3430 }
3431
3432 /*
3433 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3434 * zfs rename [-f] -p <fs | vol> <fs | vol>
3435 * zfs rename -r <snap> <snap>
3436 *
3437 * Renames the given dataset to another of the same type.
3438 *
3439 * The '-p' flag creates all the non-existing ancestors of the target first.
3440 */
3441 /* ARGSUSED */
3442 static int
3443 zfs_do_rename(int argc, char **argv)
3444 {
3445 zfs_handle_t *zhp;
3446 int c;
3447 int ret = 0;
3448 boolean_t recurse = B_FALSE;
3449 boolean_t parents = B_FALSE;
3450 boolean_t force_unmount = B_FALSE;
3451
3452 /* check options */
3453 while ((c = getopt(argc, argv, "prf")) != -1) {
3454 switch (c) {
3455 case 'p':
3456 parents = B_TRUE;
3457 break;
3458 case 'r':
3459 recurse = B_TRUE;
3460 break;
3461 case 'f':
3462 force_unmount = B_TRUE;
3463 break;
3464 case '?':
3465 default:
3466 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3467 optopt);
3468 usage(B_FALSE);
3469 }
3470 }
3471
3472 argc -= optind;
3473 argv += optind;
3474
3475 /* check number of arguments */
3476 if (argc < 1) {
3477 (void) fprintf(stderr, gettext("missing source dataset "
3478 "argument\n"));
3479 usage(B_FALSE);
3480 }
3481 if (argc < 2) {
3482 (void) fprintf(stderr, gettext("missing target dataset "
3483 "argument\n"));
3484 usage(B_FALSE);
3485 }
3486 if (argc > 2) {
3487 (void) fprintf(stderr, gettext("too many arguments\n"));
3488 usage(B_FALSE);
3489 }
3490
3491 if (recurse && parents) {
3492 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3493 "exclusive\n"));
3494 usage(B_FALSE);
3495 }
3496
3497 if (recurse && strchr(argv[0], '@') == 0) {
3498 (void) fprintf(stderr, gettext("source dataset for recursive "
3499 "rename must be a snapshot\n"));
3500 usage(B_FALSE);
3501 }
3502
3503 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3504 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3505 return (1);
3506
3507 /* If we were asked and the name looks good, try to create ancestors. */
3508 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3509 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3510 zfs_close(zhp);
3511 return (1);
3512 }
3513
3514 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3515
3516 zfs_close(zhp);
3517 return (ret);
3518 }
3519
3520 /*
3521 * zfs promote <fs>
3522 *
3523 * Promotes the given clone fs to be the parent
3524 */
3525 /* ARGSUSED */
3526 static int
3527 zfs_do_promote(int argc, char **argv)
3528 {
3529 zfs_handle_t *zhp;
3530 int ret = 0;
3531
3532 /* check options */
3533 if (argc > 1 && argv[1][0] == '-') {
3534 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3535 argv[1][1]);
3536 usage(B_FALSE);
3537 }
3538
3539 /* check number of arguments */
3540 if (argc < 2) {
3541 (void) fprintf(stderr, gettext("missing clone filesystem"
3542 " argument\n"));
3543 usage(B_FALSE);
3544 }
3545 if (argc > 2) {
3546 (void) fprintf(stderr, gettext("too many arguments\n"));
3547 usage(B_FALSE);
3548 }
3549
3550 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3551 if (zhp == NULL)
3552 return (1);
3553
3554 ret = (zfs_promote(zhp) != 0);
3555
3556
3557 zfs_close(zhp);
3558 return (ret);
3559 }
3560
3561 /*
3562 * zfs rollback [-rRf] <snapshot>
3563 *
3564 * -r Delete any intervening snapshots before doing rollback
3565 * -R Delete any snapshots and their clones
3566 * -f ignored for backwards compatibility
3567 *
3568 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3569 * since then and making it the active dataset. If more recent snapshots exist,
3570 * the command will complain unless the '-r' flag is given.
3571 */
3572 typedef struct rollback_cbdata {
3573 uint64_t cb_create;
3574 boolean_t cb_first;
3575 int cb_doclones;
3576 char *cb_target;
3577 int cb_error;
3578 boolean_t cb_recurse;
3579 } rollback_cbdata_t;
3580
3581 static int
3582 rollback_check_dependent(zfs_handle_t *zhp, void *data)
3583 {
3584 rollback_cbdata_t *cbp = data;
3585
3586 if (cbp->cb_first && cbp->cb_recurse) {
3587 (void) fprintf(stderr, gettext("cannot rollback to "
3588 "'%s': clones of previous snapshots exist\n"),
3589 cbp->cb_target);
3590 (void) fprintf(stderr, gettext("use '-R' to "
3591 "force deletion of the following clones and "
3592 "dependents:\n"));
3593 cbp->cb_first = 0;
3594 cbp->cb_error = 1;
3595 }
3596
3597 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3598
3599 zfs_close(zhp);
3600 return (0);
3601 }
3602
3603
3604 /*
3605 * Report any snapshots more recent than the one specified. Used when '-r' is
3606 * not specified. We reuse this same callback for the snapshot dependents - if
3607 * 'cb_dependent' is set, then this is a dependent and we should report it
3608 * without checking the transaction group.
3609 */
3610 static int
3611 rollback_check(zfs_handle_t *zhp, void *data)
3612 {
3613 rollback_cbdata_t *cbp = data;
3614
3615 if (cbp->cb_doclones) {
3616 zfs_close(zhp);
3617 return (0);
3618 }
3619
3620 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
3621 if (cbp->cb_first && !cbp->cb_recurse) {
3622 (void) fprintf(stderr, gettext("cannot "
3623 "rollback to '%s': more recent snapshots "
3624 "or bookmarks exist\n"),
3625 cbp->cb_target);
3626 (void) fprintf(stderr, gettext("use '-r' to "
3627 "force deletion of the following "
3628 "snapshots and bookmarks:\n"));
3629 cbp->cb_first = 0;
3630 cbp->cb_error = 1;
3631 }
3632
3633 if (cbp->cb_recurse) {
3634 if (zfs_iter_dependents(zhp, B_TRUE,
3635 rollback_check_dependent, cbp) != 0) {
3636 zfs_close(zhp);
3637 return (-1);
3638 }
3639 } else {
3640 (void) fprintf(stderr, "%s\n",
3641 zfs_get_name(zhp));
3642 }
3643 }
3644 zfs_close(zhp);
3645 return (0);
3646 }
3647
3648 static int
3649 zfs_do_rollback(int argc, char **argv)
3650 {
3651 int ret = 0;
3652 int c;
3653 boolean_t force = B_FALSE;
3654 rollback_cbdata_t cb = { 0 };
3655 zfs_handle_t *zhp, *snap;
3656 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3657 char *delim;
3658
3659 /* check options */
3660 while ((c = getopt(argc, argv, "rRf")) != -1) {
3661 switch (c) {
3662 case 'r':
3663 cb.cb_recurse = 1;
3664 break;
3665 case 'R':
3666 cb.cb_recurse = 1;
3667 cb.cb_doclones = 1;
3668 break;
3669 case 'f':
3670 force = B_TRUE;
3671 break;
3672 case '?':
3673 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3674 optopt);
3675 usage(B_FALSE);
3676 }
3677 }
3678
3679 argc -= optind;
3680 argv += optind;
3681
3682 /* check number of arguments */
3683 if (argc < 1) {
3684 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3685 usage(B_FALSE);
3686 }
3687 if (argc > 1) {
3688 (void) fprintf(stderr, gettext("too many arguments\n"));
3689 usage(B_FALSE);
3690 }
3691
3692 /* open the snapshot */
3693 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3694 return (1);
3695
3696 /* open the parent dataset */
3697 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3698 verify((delim = strrchr(parentname, '@')) != NULL);
3699 *delim = '\0';
3700 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3701 zfs_close(snap);
3702 return (1);
3703 }
3704
3705 /*
3706 * Check for more recent snapshots and/or clones based on the presence
3707 * of '-r' and '-R'.
3708 */
3709 cb.cb_target = argv[0];
3710 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3711 cb.cb_first = B_TRUE;
3712 cb.cb_error = 0;
3713 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0)
3714 goto out;
3715 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0)
3716 goto out;
3717
3718 if ((ret = cb.cb_error) != 0)
3719 goto out;
3720
3721 /*
3722 * Rollback parent to the given snapshot.
3723 */
3724 ret = zfs_rollback(zhp, snap, force);
3725
3726 out:
3727 zfs_close(snap);
3728 zfs_close(zhp);
3729
3730 if (ret == 0)
3731 return (0);
3732 else
3733 return (1);
3734 }
3735
3736 /*
3737 * zfs set property=value ... { fs | snap | vol } ...
3738 *
3739 * Sets the given properties for all datasets specified on the command line.
3740 */
3741
3742 static int
3743 set_callback(zfs_handle_t *zhp, void *data)
3744 {
3745 nvlist_t *props = data;
3746
3747 if (zfs_prop_set_list(zhp, props) != 0) {
3748 switch (libzfs_errno(g_zfs)) {
3749 case EZFS_MOUNTFAILED:
3750 (void) fprintf(stderr, gettext("property may be set "
3751 "but unable to remount filesystem\n"));
3752 break;
3753 case EZFS_SHARENFSFAILED:
3754 (void) fprintf(stderr, gettext("property may be set "
3755 "but unable to reshare filesystem\n"));
3756 break;
3757 }
3758 return (1);
3759 }
3760 return (0);
3761 }
3762
3763 static int
3764 zfs_do_set(int argc, char **argv)
3765 {
3766 nvlist_t *props = NULL;
3767 int ds_start = -1; /* argv idx of first dataset arg */
3768 int ret = 0;
3769 int i;
3770
3771 /* check for options */
3772 if (argc > 1 && argv[1][0] == '-') {
3773 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3774 argv[1][1]);
3775 usage(B_FALSE);
3776 }
3777
3778 /* check number of arguments */
3779 if (argc < 2) {
3780 (void) fprintf(stderr, gettext("missing arguments\n"));
3781 usage(B_FALSE);
3782 }
3783 if (argc < 3) {
3784 if (strchr(argv[1], '=') == NULL) {
3785 (void) fprintf(stderr, gettext("missing property=value "
3786 "argument(s)\n"));
3787 } else {
3788 (void) fprintf(stderr, gettext("missing dataset "
3789 "name(s)\n"));
3790 }
3791 usage(B_FALSE);
3792 }
3793
3794 /* validate argument order: prop=val args followed by dataset args */
3795 for (i = 1; i < argc; i++) {
3796 if (strchr(argv[i], '=') != NULL) {
3797 if (ds_start > 0) {
3798 /* out-of-order prop=val argument */
3799 (void) fprintf(stderr, gettext("invalid "
3800 "argument order\n"));
3801 usage(B_FALSE);
3802 }
3803 } else if (ds_start < 0) {
3804 ds_start = i;
3805 }
3806 }
3807 if (ds_start < 0) {
3808 (void) fprintf(stderr, gettext("missing dataset name(s)\n"));
3809 usage(B_FALSE);
3810 }
3811
3812 /* Populate a list of property settings */
3813 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3814 nomem();
3815 for (i = 1; i < ds_start; i++) {
3816 if (!parseprop(props, argv[i])) {
3817 ret = -1;
3818 goto error;
3819 }
3820 }
3821
3822 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
3823 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
3824
3825 error:
3826 nvlist_free(props);
3827 return (ret);
3828 }
3829
3830 typedef struct snap_cbdata {
3831 nvlist_t *sd_nvl;
3832 boolean_t sd_recursive;
3833 const char *sd_snapname;
3834 } snap_cbdata_t;
3835
3836 static int
3837 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3838 {
3839 snap_cbdata_t *sd = arg;
3840 char *name;
3841 int rv = 0;
3842 int error;
3843
3844 if (sd->sd_recursive &&
3845 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) {
3846 zfs_close(zhp);
3847 return (0);
3848 }
3849
3850 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3851 if (error == -1)
3852 nomem();
3853 fnvlist_add_boolean(sd->sd_nvl, name);
3854 free(name);
3855
3856 if (sd->sd_recursive)
3857 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3858 zfs_close(zhp);
3859 return (rv);
3860 }
3861
3862 /*
3863 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3864 *
3865 * Creates a snapshot with the given name. While functionally equivalent to
3866 * 'zfs create', it is a separate command to differentiate intent.
3867 */
3868 static int
3869 zfs_do_snapshot(int argc, char **argv)
3870 {
3871 int ret = 0;
3872 signed char c;
3873 nvlist_t *props;
3874 snap_cbdata_t sd = { 0 };
3875 boolean_t multiple_snaps = B_FALSE;
3876
3877 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3878 nomem();
3879 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3880 nomem();
3881
3882 /* check options */
3883 while ((c = getopt(argc, argv, "ro:")) != -1) {
3884 switch (c) {
3885 case 'o':
3886 if (!parseprop(props, optarg)) {
3887 nvlist_free(sd.sd_nvl);
3888 nvlist_free(props);
3889 return (1);
3890 }
3891 break;
3892 case 'r':
3893 sd.sd_recursive = B_TRUE;
3894 multiple_snaps = B_TRUE;
3895 break;
3896 case '?':
3897 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3898 optopt);
3899 goto usage;
3900 }
3901 }
3902
3903 argc -= optind;
3904 argv += optind;
3905
3906 /* check number of arguments */
3907 if (argc < 1) {
3908 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3909 goto usage;
3910 }
3911
3912 if (argc > 1)
3913 multiple_snaps = B_TRUE;
3914 for (; argc > 0; argc--, argv++) {
3915 char *atp;
3916 zfs_handle_t *zhp;
3917
3918 atp = strchr(argv[0], '@');
3919 if (atp == NULL)
3920 goto usage;
3921 *atp = '\0';
3922 sd.sd_snapname = atp + 1;
3923 zhp = zfs_open(g_zfs, argv[0],
3924 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3925 if (zhp == NULL)
3926 goto usage;
3927 if (zfs_snapshot_cb(zhp, &sd) != 0)
3928 goto usage;
3929 }
3930
3931 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3932 nvlist_free(sd.sd_nvl);
3933 nvlist_free(props);
3934 if (ret != 0 && multiple_snaps)
3935 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3936 return (ret != 0);
3937
3938 usage:
3939 nvlist_free(sd.sd_nvl);
3940 nvlist_free(props);
3941 usage(B_FALSE);
3942 return (-1);
3943 }
3944
3945 /*
3946 * Send a backup stream to stdout.
3947 */
3948 static int
3949 zfs_do_send(int argc, char **argv)
3950 {
3951 char *fromname = NULL;
3952 char *toname = NULL;
3953 char *resume_token = NULL;
3954 char *cp;
3955 zfs_handle_t *zhp;
3956 sendflags_t flags = { 0 };
3957 int c, err;
3958 nvlist_t *dbgnv = NULL;
3959 boolean_t extraverbose = B_FALSE;
3960
3961 struct option long_options[] = {
3962 {"replicate", no_argument, NULL, 'R'},
3963 {"props", no_argument, NULL, 'p'},
3964 {"parsable", no_argument, NULL, 'P'},
3965 {"dedup", no_argument, NULL, 'D'},
3966 {"verbose", no_argument, NULL, 'v'},
3967 {"dryrun", no_argument, NULL, 'n'},
3968 {"large-block", no_argument, NULL, 'L'},
3969 {"embed", no_argument, NULL, 'e'},
3970 {"resume", required_argument, NULL, 't'},
3971 {"compressed", no_argument, NULL, 'c'},
3972 {"raw", no_argument, NULL, 'w'},
3973 {"backup", no_argument, NULL, 'b'},
3974 {0, 0, 0, 0}
3975 };
3976
3977 /* check options */
3978 while ((c = getopt_long(argc, argv, ":i:I:RDpvnPLet:cwb", long_options,
3979 NULL)) != -1) {
3980 switch (c) {
3981 case 'i':
3982 if (fromname)
3983 usage(B_FALSE);
3984 fromname = optarg;
3985 break;
3986 case 'I':
3987 if (fromname)
3988 usage(B_FALSE);
3989 fromname = optarg;
3990 flags.doall = B_TRUE;
3991 break;
3992 case 'R':
3993 flags.replicate = B_TRUE;
3994 break;
3995 case 'p':
3996 flags.props = B_TRUE;
3997 break;
3998 case 'b':
3999 flags.backup = B_TRUE;
4000 break;
4001 case 'P':
4002 flags.parsable = B_TRUE;
4003 flags.verbose = B_TRUE;
4004 break;
4005 case 'v':
4006 if (flags.verbose)
4007 extraverbose = B_TRUE;
4008 flags.verbose = B_TRUE;
4009 flags.progress = B_TRUE;
4010 break;
4011 case 'D':
4012 flags.dedup = B_TRUE;
4013 break;
4014 case 'n':
4015 flags.dryrun = B_TRUE;
4016 break;
4017 case 'L':
4018 flags.largeblock = B_TRUE;
4019 break;
4020 case 'e':
4021 flags.embed_data = B_TRUE;
4022 break;
4023 case 't':
4024 resume_token = optarg;
4025 break;
4026 case 'c':
4027 flags.compress = B_TRUE;
4028 break;
4029 case 'w':
4030 flags.raw = B_TRUE;
4031 flags.compress = B_TRUE;
4032 flags.embed_data = B_TRUE;
4033 flags.largeblock = B_TRUE;
4034 break;
4035 case ':':
4036 /*
4037 * If a parameter was not passed, optopt contains the
4038 * value that would normally lead us into the
4039 * appropriate case statement. If it's > 256, then this
4040 * must be a longopt and we should look at argv to get
4041 * the string. Otherwise it's just the character, so we
4042 * should use it directly.
4043 */
4044 if (optopt <= UINT8_MAX) {
4045 (void) fprintf(stderr,
4046 gettext("missing argument for '%c' "
4047 "option\n"), optopt);
4048 } else {
4049 (void) fprintf(stderr,
4050 gettext("missing argument for '%s' "
4051 "option\n"), argv[optind - 1]);
4052 }
4053 usage(B_FALSE);
4054 break;
4055 case '?':
4056 /*FALLTHROUGH*/
4057 default:
4058 /*
4059 * If an invalid flag was passed, optopt contains the
4060 * character if it was a short flag, or 0 if it was a
4061 * longopt.
4062 */
4063 if (optopt != 0) {
4064 (void) fprintf(stderr,
4065 gettext("invalid option '%c'\n"), optopt);
4066 } else {
4067 (void) fprintf(stderr,
4068 gettext("invalid option '%s'\n"),
4069 argv[optind - 1]);
4070
4071 }
4072 usage(B_FALSE);
4073 }
4074 }
4075
4076 argc -= optind;
4077 argv += optind;
4078
4079 if (resume_token != NULL) {
4080 if (fromname != NULL || flags.replicate || flags.props ||
4081 flags.backup || flags.dedup) {
4082 (void) fprintf(stderr,
4083 gettext("invalid flags combined with -t\n"));
4084 usage(B_FALSE);
4085 }
4086 if (argc != 0) {
4087 (void) fprintf(stderr, gettext("no additional "
4088 "arguments are permitted with -t\n"));
4089 usage(B_FALSE);
4090 }
4091 } else {
4092 if (argc < 1) {
4093 (void) fprintf(stderr,
4094 gettext("missing snapshot argument\n"));
4095 usage(B_FALSE);
4096 }
4097 if (argc > 1) {
4098 (void) fprintf(stderr, gettext("too many arguments\n"));
4099 usage(B_FALSE);
4100 }
4101 }
4102
4103 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
4104 (void) fprintf(stderr,
4105 gettext("Error: Stream can not be written to a terminal.\n"
4106 "You must redirect standard output.\n"));
4107 return (1);
4108 }
4109
4110 if (resume_token != NULL) {
4111 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO,
4112 resume_token));
4113 }
4114
4115 /*
4116 * Special case sending a filesystem, or from a bookmark.
4117 */
4118 if (strchr(argv[0], '@') == NULL ||
4119 (fromname && strchr(fromname, '#') != NULL)) {
4120 char frombuf[ZFS_MAX_DATASET_NAME_LEN];
4121
4122 if (flags.replicate || flags.doall || flags.props ||
4123 flags.backup || flags.dedup ||
4124 (strchr(argv[0], '@') == NULL &&
4125 (flags.dryrun || flags.verbose || flags.progress))) {
4126 (void) fprintf(stderr, gettext("Error: "
4127 "Unsupported flag with filesystem or bookmark.\n"));
4128 return (1);
4129 }
4130
4131 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET);
4132 if (zhp == NULL)
4133 return (1);
4134
4135 if (fromname != NULL &&
4136 (fromname[0] == '#' || fromname[0] == '@')) {
4137 /*
4138 * Incremental source name begins with # or @.
4139 * Default to same fs as target.
4140 */
4141 (void) strlcpy(frombuf, argv[0], sizeof (frombuf));
4142 cp = strchr(frombuf, '@');
4143 if (cp != NULL)
4144 *cp = '\0';
4145 (void) strlcat(frombuf, fromname, sizeof (frombuf));
4146 fromname = frombuf;
4147 }
4148 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, flags);
4149 zfs_close(zhp);
4150 return (err != 0);
4151 }
4152
4153 cp = strchr(argv[0], '@');
4154 *cp = '\0';
4155 toname = cp + 1;
4156 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4157 if (zhp == NULL)
4158 return (1);
4159
4160 /*
4161 * If they specified the full path to the snapshot, chop off
4162 * everything except the short name of the snapshot, but special
4163 * case if they specify the origin.
4164 */
4165 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
4166 char origin[ZFS_MAX_DATASET_NAME_LEN];
4167 zprop_source_t src;
4168
4169 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
4170 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
4171
4172 if (strcmp(origin, fromname) == 0) {
4173 fromname = NULL;
4174 flags.fromorigin = B_TRUE;
4175 } else {
4176 *cp = '\0';
4177 if (cp != fromname && strcmp(argv[0], fromname)) {
4178 (void) fprintf(stderr,
4179 gettext("incremental source must be "
4180 "in same filesystem\n"));
4181 usage(B_FALSE);
4182 }
4183 fromname = cp + 1;
4184 if (strchr(fromname, '@') || strchr(fromname, '/')) {
4185 (void) fprintf(stderr,
4186 gettext("invalid incremental source\n"));
4187 usage(B_FALSE);
4188 }
4189 }
4190 }
4191
4192 if (flags.replicate && fromname == NULL)
4193 flags.doall = B_TRUE;
4194
4195 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
4196 extraverbose ? &dbgnv : NULL);
4197
4198 if (extraverbose && dbgnv != NULL) {
4199 /*
4200 * dump_nvlist prints to stdout, but that's been
4201 * redirected to a file. Make it print to stderr
4202 * instead.
4203 */
4204 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
4205 dump_nvlist(dbgnv, 0);
4206 nvlist_free(dbgnv);
4207 }
4208 zfs_close(zhp);
4209
4210 return (err != 0);
4211 }
4212
4213 /*
4214 * Restore a backup stream from stdin.
4215 */
4216 static int
4217 zfs_do_receive(int argc, char **argv)
4218 {
4219 int c, err = 0;
4220 recvflags_t flags = { 0 };
4221 boolean_t abort_resumable = B_FALSE;
4222 nvlist_t *props;
4223
4224 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
4225 nomem();
4226
4227 /* check options */
4228 while ((c = getopt(argc, argv, ":o:x:denuvFsA")) != -1) {
4229 switch (c) {
4230 case 'o':
4231 if (!parseprop(props, optarg)) {
4232 nvlist_free(props);
4233 usage(B_FALSE);
4234 }
4235 break;
4236 case 'x':
4237 if (!parsepropname(props, optarg)) {
4238 nvlist_free(props);
4239 usage(B_FALSE);
4240 }
4241 break;
4242 case 'd':
4243 if (flags.istail) {
4244 (void) fprintf(stderr, gettext("invalid option "
4245 "combination: -d and -e are mutually "
4246 "exclusive\n"));
4247 usage(B_FALSE);
4248 }
4249 flags.isprefix = B_TRUE;
4250 break;
4251 case 'e':
4252 if (flags.isprefix) {
4253 (void) fprintf(stderr, gettext("invalid option "
4254 "combination: -d and -e are mutually "
4255 "exclusive\n"));
4256 usage(B_FALSE);
4257 }
4258 flags.istail = B_TRUE;
4259 break;
4260 case 'n':
4261 flags.dryrun = B_TRUE;
4262 break;
4263 case 'u':
4264 flags.nomount = B_TRUE;
4265 break;
4266 case 'v':
4267 flags.verbose = B_TRUE;
4268 break;
4269 case 's':
4270 flags.resumable = B_TRUE;
4271 break;
4272 case 'F':
4273 flags.force = B_TRUE;
4274 break;
4275 case 'A':
4276 abort_resumable = B_TRUE;
4277 break;
4278 case ':':
4279 (void) fprintf(stderr, gettext("missing argument for "
4280 "'%c' option\n"), optopt);
4281 usage(B_FALSE);
4282 break;
4283 case '?':
4284 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4285 optopt);
4286 usage(B_FALSE);
4287 }
4288 }
4289
4290 argc -= optind;
4291 argv += optind;
4292
4293 /* zfs recv -e (use "tail" name) implies -d (remove dataset "head") */
4294 if (flags.istail)
4295 flags.isprefix = B_TRUE;
4296
4297 /* check number of arguments */
4298 if (argc < 1) {
4299 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
4300 usage(B_FALSE);
4301 }
4302 if (argc > 1) {
4303 (void) fprintf(stderr, gettext("too many arguments\n"));
4304 usage(B_FALSE);
4305 }
4306
4307 if (abort_resumable) {
4308 if (flags.isprefix || flags.istail || flags.dryrun ||
4309 flags.resumable || flags.nomount) {
4310 (void) fprintf(stderr, gettext("invalid option\n"));
4311 usage(B_FALSE);
4312 }
4313
4314 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4315 (void) snprintf(namebuf, sizeof (namebuf),
4316 "%s/%%recv", argv[0]);
4317
4318 if (zfs_dataset_exists(g_zfs, namebuf,
4319 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
4320 zfs_handle_t *zhp = zfs_open(g_zfs,
4321 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4322 if (zhp == NULL) {
4323 nvlist_free(props);
4324 return (1);
4325 }
4326 err = zfs_destroy(zhp, B_FALSE);
4327 zfs_close(zhp);
4328 } else {
4329 zfs_handle_t *zhp = zfs_open(g_zfs,
4330 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
4331 if (zhp == NULL)
4332 usage(B_FALSE);
4333 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) ||
4334 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
4335 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) {
4336 (void) fprintf(stderr,
4337 gettext("'%s' does not have any "
4338 "resumable receive state to abort\n"),
4339 argv[0]);
4340 nvlist_free(props);
4341 zfs_close(zhp);
4342 return (1);
4343 }
4344 err = zfs_destroy(zhp, B_FALSE);
4345 zfs_close(zhp);
4346 }
4347 nvlist_free(props);
4348 return (err != 0);
4349 }
4350
4351 if (isatty(STDIN_FILENO)) {
4352 (void) fprintf(stderr,
4353 gettext("Error: Backup stream can not be read "
4354 "from a terminal.\n"
4355 "You must redirect standard input.\n"));
4356 nvlist_free(props);
4357 return (1);
4358 }
4359 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
4360 nvlist_free(props);
4361
4362 return (err != 0);
4363 }
4364
4365 /*
4366 * allow/unallow stuff
4367 */
4368 /* copied from zfs/sys/dsl_deleg.h */
4369 #define ZFS_DELEG_PERM_CREATE "create"
4370 #define ZFS_DELEG_PERM_DESTROY "destroy"
4371 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
4372 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
4373 #define ZFS_DELEG_PERM_CLONE "clone"
4374 #define ZFS_DELEG_PERM_PROMOTE "promote"
4375 #define ZFS_DELEG_PERM_RENAME "rename"
4376 #define ZFS_DELEG_PERM_MOUNT "mount"
4377 #define ZFS_DELEG_PERM_SHARE "share"
4378 #define ZFS_DELEG_PERM_SEND "send"
4379 #define ZFS_DELEG_PERM_RECEIVE "receive"
4380 #define ZFS_DELEG_PERM_ALLOW "allow"
4381 #define ZFS_DELEG_PERM_USERPROP "userprop"
4382 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
4383 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
4384 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
4385 #define ZFS_DELEG_PERM_USERUSED "userused"
4386 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
4387 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota"
4388 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota"
4389 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused"
4390 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused"
4391
4392 #define ZFS_DELEG_PERM_HOLD "hold"
4393 #define ZFS_DELEG_PERM_RELEASE "release"
4394 #define ZFS_DELEG_PERM_DIFF "diff"
4395 #define ZFS_DELEG_PERM_BOOKMARK "bookmark"
4396 #define ZFS_DELEG_PERM_REMAP "remap"
4397 #define ZFS_DELEG_PERM_LOAD_KEY "load-key"
4398 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key"
4399
4400 #define ZFS_DELEG_PERM_PROJECTUSED "projectused"
4401 #define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota"
4402 #define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused"
4403 #define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota"
4404
4405 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
4406
4407 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
4408 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
4409 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
4410 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
4411 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
4412 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
4413 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
4414 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
4415 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
4416 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
4417 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
4418 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
4419 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
4420 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
4421 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
4422 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
4423 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK },
4424 { ZFS_DELEG_PERM_REMAP, ZFS_DELEG_NOTE_REMAP },
4425 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY },
4426 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY },
4427
4428 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
4429 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
4430 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
4431 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
4432 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
4433 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA },
4434 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED },
4435 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA },
4436 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED },
4437 { ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED },
4438 { ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA },
4439 { ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED },
4440 { ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA },
4441 { NULL, ZFS_DELEG_NOTE_NONE }
4442 };
4443
4444 /* permission structure */
4445 typedef struct deleg_perm {
4446 zfs_deleg_who_type_t dp_who_type;
4447 const char *dp_name;
4448 boolean_t dp_local;
4449 boolean_t dp_descend;
4450 } deleg_perm_t;
4451
4452 /* */
4453 typedef struct deleg_perm_node {
4454 deleg_perm_t dpn_perm;
4455
4456 uu_avl_node_t dpn_avl_node;
4457 } deleg_perm_node_t;
4458
4459 typedef struct fs_perm fs_perm_t;
4460
4461 /* permissions set */
4462 typedef struct who_perm {
4463 zfs_deleg_who_type_t who_type;
4464 const char *who_name; /* id */
4465 char who_ug_name[256]; /* user/group name */
4466 fs_perm_t *who_fsperm; /* uplink */
4467
4468 uu_avl_t *who_deleg_perm_avl; /* permissions */
4469 } who_perm_t;
4470
4471 /* */
4472 typedef struct who_perm_node {
4473 who_perm_t who_perm;
4474 uu_avl_node_t who_avl_node;
4475 } who_perm_node_t;
4476
4477 typedef struct fs_perm_set fs_perm_set_t;
4478 /* fs permissions */
4479 struct fs_perm {
4480 const char *fsp_name;
4481
4482 uu_avl_t *fsp_sc_avl; /* sets,create */
4483 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
4484
4485 fs_perm_set_t *fsp_set; /* uplink */
4486 };
4487
4488 /* */
4489 typedef struct fs_perm_node {
4490 fs_perm_t fspn_fsperm;
4491 uu_avl_t *fspn_avl;
4492
4493 uu_list_node_t fspn_list_node;
4494 } fs_perm_node_t;
4495
4496 /* top level structure */
4497 struct fs_perm_set {
4498 uu_list_pool_t *fsps_list_pool;
4499 uu_list_t *fsps_list; /* list of fs_perms */
4500
4501 uu_avl_pool_t *fsps_named_set_avl_pool;
4502 uu_avl_pool_t *fsps_who_perm_avl_pool;
4503 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
4504 };
4505
4506 static inline const char *
4507 deleg_perm_type(zfs_deleg_note_t note)
4508 {
4509 /* subcommands */
4510 switch (note) {
4511 /* SUBCOMMANDS */
4512 /* OTHER */
4513 case ZFS_DELEG_NOTE_GROUPQUOTA:
4514 case ZFS_DELEG_NOTE_GROUPUSED:
4515 case ZFS_DELEG_NOTE_USERPROP:
4516 case ZFS_DELEG_NOTE_USERQUOTA:
4517 case ZFS_DELEG_NOTE_USERUSED:
4518 case ZFS_DELEG_NOTE_USEROBJQUOTA:
4519 case ZFS_DELEG_NOTE_USEROBJUSED:
4520 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
4521 case ZFS_DELEG_NOTE_GROUPOBJUSED:
4522 case ZFS_DELEG_NOTE_PROJECTUSED:
4523 case ZFS_DELEG_NOTE_PROJECTQUOTA:
4524 case ZFS_DELEG_NOTE_PROJECTOBJUSED:
4525 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA:
4526 /* other */
4527 return (gettext("other"));
4528 default:
4529 return (gettext("subcommand"));
4530 }
4531 }
4532
4533 static int
4534 who_type2weight(zfs_deleg_who_type_t who_type)
4535 {
4536 int res;
4537 switch (who_type) {
4538 case ZFS_DELEG_NAMED_SET_SETS:
4539 case ZFS_DELEG_NAMED_SET:
4540 res = 0;
4541 break;
4542 case ZFS_DELEG_CREATE_SETS:
4543 case ZFS_DELEG_CREATE:
4544 res = 1;
4545 break;
4546 case ZFS_DELEG_USER_SETS:
4547 case ZFS_DELEG_USER:
4548 res = 2;
4549 break;
4550 case ZFS_DELEG_GROUP_SETS:
4551 case ZFS_DELEG_GROUP:
4552 res = 3;
4553 break;
4554 case ZFS_DELEG_EVERYONE_SETS:
4555 case ZFS_DELEG_EVERYONE:
4556 res = 4;
4557 break;
4558 default:
4559 res = -1;
4560 }
4561
4562 return (res);
4563 }
4564
4565 /* ARGSUSED */
4566 static int
4567 who_perm_compare(const void *larg, const void *rarg, void *unused)
4568 {
4569 const who_perm_node_t *l = larg;
4570 const who_perm_node_t *r = rarg;
4571 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
4572 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
4573 int lweight = who_type2weight(ltype);
4574 int rweight = who_type2weight(rtype);
4575 int res = lweight - rweight;
4576 if (res == 0)
4577 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
4578 ZFS_MAX_DELEG_NAME-1);
4579
4580 if (res == 0)
4581 return (0);
4582 if (res > 0)
4583 return (1);
4584 else
4585 return (-1);
4586 }
4587
4588 /* ARGSUSED */
4589 static int
4590 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
4591 {
4592 const deleg_perm_node_t *l = larg;
4593 const deleg_perm_node_t *r = rarg;
4594 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
4595 ZFS_MAX_DELEG_NAME-1);
4596
4597 if (res == 0)
4598 return (0);
4599
4600 if (res > 0)
4601 return (1);
4602 else
4603 return (-1);
4604 }
4605
4606 static inline void
4607 fs_perm_set_init(fs_perm_set_t *fspset)
4608 {
4609 bzero(fspset, sizeof (fs_perm_set_t));
4610
4611 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
4612 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
4613 NULL, UU_DEFAULT)) == NULL)
4614 nomem();
4615 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
4616 UU_DEFAULT)) == NULL)
4617 nomem();
4618
4619 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
4620 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
4621 who_perm_node_t, who_avl_node), who_perm_compare,
4622 UU_DEFAULT)) == NULL)
4623 nomem();
4624
4625 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4626 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4627 who_perm_node_t, who_avl_node), who_perm_compare,
4628 UU_DEFAULT)) == NULL)
4629 nomem();
4630
4631 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4632 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4633 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4634 == NULL)
4635 nomem();
4636 }
4637
4638 static inline void fs_perm_fini(fs_perm_t *);
4639 static inline void who_perm_fini(who_perm_t *);
4640
4641 static inline void
4642 fs_perm_set_fini(fs_perm_set_t *fspset)
4643 {
4644 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4645
4646 while (node != NULL) {
4647 fs_perm_node_t *next_node =
4648 uu_list_next(fspset->fsps_list, node);
4649 fs_perm_t *fsperm = &node->fspn_fsperm;
4650 fs_perm_fini(fsperm);
4651 uu_list_remove(fspset->fsps_list, node);
4652 free(node);
4653 node = next_node;
4654 }
4655
4656 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4657 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4658 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4659 }
4660
4661 static inline void
4662 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4663 const char *name)
4664 {
4665 deleg_perm->dp_who_type = type;
4666 deleg_perm->dp_name = name;
4667 }
4668
4669 static inline void
4670 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4671 zfs_deleg_who_type_t type, const char *name)
4672 {
4673 uu_avl_pool_t *pool;
4674 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4675
4676 bzero(who_perm, sizeof (who_perm_t));
4677
4678 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4679 UU_DEFAULT)) == NULL)
4680 nomem();
4681
4682 who_perm->who_type = type;
4683 who_perm->who_name = name;
4684 who_perm->who_fsperm = fsperm;
4685 }
4686
4687 static inline void
4688 who_perm_fini(who_perm_t *who_perm)
4689 {
4690 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4691
4692 while (node != NULL) {
4693 deleg_perm_node_t *next_node =
4694 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4695
4696 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4697 free(node);
4698 node = next_node;
4699 }
4700
4701 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4702 }
4703
4704 static inline void
4705 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4706 {
4707 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4708 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4709
4710 bzero(fsperm, sizeof (fs_perm_t));
4711
4712 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4713 == NULL)
4714 nomem();
4715
4716 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4717 == NULL)
4718 nomem();
4719
4720 fsperm->fsp_set = fspset;
4721 fsperm->fsp_name = fsname;
4722 }
4723
4724 static inline void
4725 fs_perm_fini(fs_perm_t *fsperm)
4726 {
4727 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4728 while (node != NULL) {
4729 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4730 node);
4731 who_perm_t *who_perm = &node->who_perm;
4732 who_perm_fini(who_perm);
4733 uu_avl_remove(fsperm->fsp_sc_avl, node);
4734 free(node);
4735 node = next_node;
4736 }
4737
4738 node = uu_avl_first(fsperm->fsp_uge_avl);
4739 while (node != NULL) {
4740 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4741 node);
4742 who_perm_t *who_perm = &node->who_perm;
4743 who_perm_fini(who_perm);
4744 uu_avl_remove(fsperm->fsp_uge_avl, node);
4745 free(node);
4746 node = next_node;
4747 }
4748
4749 uu_avl_destroy(fsperm->fsp_sc_avl);
4750 uu_avl_destroy(fsperm->fsp_uge_avl);
4751 }
4752
4753 static void
4754 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4755 zfs_deleg_who_type_t who_type, const char *name, char locality)
4756 {
4757 uu_avl_index_t idx = 0;
4758
4759 deleg_perm_node_t *found_node = NULL;
4760 deleg_perm_t *deleg_perm = &node->dpn_perm;
4761
4762 deleg_perm_init(deleg_perm, who_type, name);
4763
4764 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4765 == NULL)
4766 uu_avl_insert(avl, node, idx);
4767 else {
4768 node = found_node;
4769 deleg_perm = &node->dpn_perm;
4770 }
4771
4772
4773 switch (locality) {
4774 case ZFS_DELEG_LOCAL:
4775 deleg_perm->dp_local = B_TRUE;
4776 break;
4777 case ZFS_DELEG_DESCENDENT:
4778 deleg_perm->dp_descend = B_TRUE;
4779 break;
4780 case ZFS_DELEG_NA:
4781 break;
4782 default:
4783 assert(B_FALSE); /* invalid locality */
4784 }
4785 }
4786
4787 static inline int
4788 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4789 {
4790 nvpair_t *nvp = NULL;
4791 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4792 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4793 zfs_deleg_who_type_t who_type = who_perm->who_type;
4794
4795 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4796 const char *name = nvpair_name(nvp);
4797 data_type_t type = nvpair_type(nvp);
4798 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4799 deleg_perm_node_t *node =
4800 safe_malloc(sizeof (deleg_perm_node_t));
4801
4802 VERIFY(type == DATA_TYPE_BOOLEAN);
4803
4804 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4805 set_deleg_perm_node(avl, node, who_type, name, locality);
4806 }
4807
4808 return (0);
4809 }
4810
4811 static inline int
4812 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4813 {
4814 nvpair_t *nvp = NULL;
4815 fs_perm_set_t *fspset = fsperm->fsp_set;
4816
4817 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4818 nvlist_t *nvl2 = NULL;
4819 const char *name = nvpair_name(nvp);
4820 uu_avl_t *avl = NULL;
4821 uu_avl_pool_t *avl_pool = NULL;
4822 zfs_deleg_who_type_t perm_type = name[0];
4823 char perm_locality = name[1];
4824 const char *perm_name = name + 3;
4825 boolean_t is_set = B_TRUE;
4826 who_perm_t *who_perm = NULL;
4827
4828 assert('$' == name[2]);
4829
4830 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4831 return (-1);
4832
4833 switch (perm_type) {
4834 case ZFS_DELEG_CREATE:
4835 case ZFS_DELEG_CREATE_SETS:
4836 case ZFS_DELEG_NAMED_SET:
4837 case ZFS_DELEG_NAMED_SET_SETS:
4838 avl_pool = fspset->fsps_named_set_avl_pool;
4839 avl = fsperm->fsp_sc_avl;
4840 break;
4841 case ZFS_DELEG_USER:
4842 case ZFS_DELEG_USER_SETS:
4843 case ZFS_DELEG_GROUP:
4844 case ZFS_DELEG_GROUP_SETS:
4845 case ZFS_DELEG_EVERYONE:
4846 case ZFS_DELEG_EVERYONE_SETS:
4847 avl_pool = fspset->fsps_who_perm_avl_pool;
4848 avl = fsperm->fsp_uge_avl;
4849 break;
4850
4851 default:
4852 assert(!"unhandled zfs_deleg_who_type_t");
4853 }
4854
4855 if (is_set) {
4856 who_perm_node_t *found_node = NULL;
4857 who_perm_node_t *node = safe_malloc(
4858 sizeof (who_perm_node_t));
4859 who_perm = &node->who_perm;
4860 uu_avl_index_t idx = 0;
4861
4862 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4863 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4864
4865 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4866 == NULL) {
4867 if (avl == fsperm->fsp_uge_avl) {
4868 uid_t rid = 0;
4869 struct passwd *p = NULL;
4870 struct group *g = NULL;
4871 const char *nice_name = NULL;
4872
4873 switch (perm_type) {
4874 case ZFS_DELEG_USER_SETS:
4875 case ZFS_DELEG_USER:
4876 rid = atoi(perm_name);
4877 p = getpwuid(rid);
4878 if (p)
4879 nice_name = p->pw_name;
4880 break;
4881 case ZFS_DELEG_GROUP_SETS:
4882 case ZFS_DELEG_GROUP:
4883 rid = atoi(perm_name);
4884 g = getgrgid(rid);
4885 if (g)
4886 nice_name = g->gr_name;
4887 break;
4888
4889 default:
4890 break;
4891 }
4892
4893 if (nice_name != NULL)
4894 (void) strlcpy(
4895 node->who_perm.who_ug_name,
4896 nice_name, 256);
4897 }
4898
4899 uu_avl_insert(avl, node, idx);
4900 } else {
4901 node = found_node;
4902 who_perm = &node->who_perm;
4903 }
4904 }
4905 VERIFY3P(who_perm, !=, NULL);
4906 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4907 }
4908
4909 return (0);
4910 }
4911
4912 static inline int
4913 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4914 {
4915 nvpair_t *nvp = NULL;
4916 uu_avl_index_t idx = 0;
4917
4918 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4919 nvlist_t *nvl2 = NULL;
4920 const char *fsname = nvpair_name(nvp);
4921 data_type_t type = nvpair_type(nvp);
4922 fs_perm_t *fsperm = NULL;
4923 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4924 if (node == NULL)
4925 nomem();
4926
4927 fsperm = &node->fspn_fsperm;
4928
4929 VERIFY(DATA_TYPE_NVLIST == type);
4930
4931 uu_list_node_init(node, &node->fspn_list_node,
4932 fspset->fsps_list_pool);
4933
4934 idx = uu_list_numnodes(fspset->fsps_list);
4935 fs_perm_init(fsperm, fspset, fsname);
4936
4937 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4938 return (-1);
4939
4940 (void) parse_fs_perm(fsperm, nvl2);
4941
4942 uu_list_insert(fspset->fsps_list, node, idx);
4943 }
4944
4945 return (0);
4946 }
4947
4948 static inline const char *
4949 deleg_perm_comment(zfs_deleg_note_t note)
4950 {
4951 const char *str = "";
4952
4953 /* subcommands */
4954 switch (note) {
4955 /* SUBCOMMANDS */
4956 case ZFS_DELEG_NOTE_ALLOW:
4957 str = gettext("Must also have the permission that is being"
4958 "\n\t\t\t\tallowed");
4959 break;
4960 case ZFS_DELEG_NOTE_CLONE:
4961 str = gettext("Must also have the 'create' ability and 'mount'"
4962 "\n\t\t\t\tability in the origin file system");
4963 break;
4964 case ZFS_DELEG_NOTE_CREATE:
4965 str = gettext("Must also have the 'mount' ability");
4966 break;
4967 case ZFS_DELEG_NOTE_DESTROY:
4968 str = gettext("Must also have the 'mount' ability");
4969 break;
4970 case ZFS_DELEG_NOTE_DIFF:
4971 str = gettext("Allows lookup of paths within a dataset;"
4972 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4973 "\n\t\t\t\tin order to use zfs diff");
4974 break;
4975 case ZFS_DELEG_NOTE_HOLD:
4976 str = gettext("Allows adding a user hold to a snapshot");
4977 break;
4978 case ZFS_DELEG_NOTE_MOUNT:
4979 str = gettext("Allows mount/umount of ZFS datasets");
4980 break;
4981 case ZFS_DELEG_NOTE_PROMOTE:
4982 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4983 " 'promote' ability in the origin file system");
4984 break;
4985 case ZFS_DELEG_NOTE_RECEIVE:
4986 str = gettext("Must also have the 'mount' and 'create'"
4987 " ability");
4988 break;
4989 case ZFS_DELEG_NOTE_RELEASE:
4990 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4991 "might destroy the snapshot");
4992 break;
4993 case ZFS_DELEG_NOTE_RENAME:
4994 str = gettext("Must also have the 'mount' and 'create'"
4995 "\n\t\t\t\tability in the new parent");
4996 break;
4997 case ZFS_DELEG_NOTE_ROLLBACK:
4998 str = gettext("");
4999 break;
5000 case ZFS_DELEG_NOTE_SEND:
5001 str = gettext("");
5002 break;
5003 case ZFS_DELEG_NOTE_SHARE:
5004 str = gettext("Allows sharing file systems over NFS or SMB"
5005 "\n\t\t\t\tprotocols");
5006 break;
5007 case ZFS_DELEG_NOTE_SNAPSHOT:
5008 str = gettext("");
5009 break;
5010 case ZFS_DELEG_NOTE_LOAD_KEY:
5011 str = gettext("Allows loading or unloading an encryption key");
5012 break;
5013 case ZFS_DELEG_NOTE_CHANGE_KEY:
5014 str = gettext("Allows changing or adding an encryption key");
5015 break;
5016 /*
5017 * case ZFS_DELEG_NOTE_VSCAN:
5018 * str = gettext("");
5019 * break;
5020 */
5021 /* OTHER */
5022 case ZFS_DELEG_NOTE_GROUPQUOTA:
5023 str = gettext("Allows accessing any groupquota@... property");
5024 break;
5025 case ZFS_DELEG_NOTE_GROUPUSED:
5026 str = gettext("Allows reading any groupused@... property");
5027 break;
5028 case ZFS_DELEG_NOTE_USERPROP:
5029 str = gettext("Allows changing any user property");
5030 break;
5031 case ZFS_DELEG_NOTE_USERQUOTA:
5032 str = gettext("Allows accessing any userquota@... property");
5033 break;
5034 case ZFS_DELEG_NOTE_USERUSED:
5035 str = gettext("Allows reading any userused@... property");
5036 break;
5037 case ZFS_DELEG_NOTE_USEROBJQUOTA:
5038 str = gettext("Allows accessing any userobjquota@... property");
5039 break;
5040 case ZFS_DELEG_NOTE_GROUPOBJQUOTA:
5041 str = gettext("Allows accessing any \n\t\t\t\t"
5042 "groupobjquota@... property");
5043 break;
5044 case ZFS_DELEG_NOTE_GROUPOBJUSED:
5045 str = gettext("Allows reading any groupobjused@... property");
5046 break;
5047 case ZFS_DELEG_NOTE_USEROBJUSED:
5048 str = gettext("Allows reading any userobjused@... property");
5049 break;
5050 case ZFS_DELEG_NOTE_PROJECTQUOTA:
5051 str = gettext("Allows accessing any projectquota@... property");
5052 break;
5053 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA:
5054 str = gettext("Allows accessing any \n\t\t\t\t"
5055 "projectobjquota@... property");
5056 break;
5057 case ZFS_DELEG_NOTE_PROJECTUSED:
5058 str = gettext("Allows reading any projectused@... property");
5059 break;
5060 case ZFS_DELEG_NOTE_PROJECTOBJUSED:
5061 str = gettext("Allows accessing any \n\t\t\t\t"
5062 "projectobjused@... property");
5063 break;
5064 /* other */
5065 default:
5066 str = "";
5067 }
5068
5069 return (str);
5070 }
5071
5072 struct allow_opts {
5073 boolean_t local;
5074 boolean_t descend;
5075 boolean_t user;
5076 boolean_t group;
5077 boolean_t everyone;
5078 boolean_t create;
5079 boolean_t set;
5080 boolean_t recursive; /* unallow only */
5081 boolean_t prt_usage;
5082
5083 boolean_t prt_perms;
5084 char *who;
5085 char *perms;
5086 const char *dataset;
5087 };
5088
5089 static inline int
5090 prop_cmp(const void *a, const void *b)
5091 {
5092 const char *str1 = *(const char **)a;
5093 const char *str2 = *(const char **)b;
5094 return (strcmp(str1, str2));
5095 }
5096
5097 static void
5098 allow_usage(boolean_t un, boolean_t requested, const char *msg)
5099 {
5100 const char *opt_desc[] = {
5101 "-h", gettext("show this help message and exit"),
5102 "-l", gettext("set permission locally"),
5103 "-d", gettext("set permission for descents"),
5104 "-u", gettext("set permission for user"),
5105 "-g", gettext("set permission for group"),
5106 "-e", gettext("set permission for everyone"),
5107 "-c", gettext("set create time permission"),
5108 "-s", gettext("define permission set"),
5109 /* unallow only */
5110 "-r", gettext("remove permissions recursively"),
5111 };
5112 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
5113 size_t allow_size = unallow_size - 2;
5114 const char *props[ZFS_NUM_PROPS];
5115 int i;
5116 size_t count = 0;
5117 FILE *fp = requested ? stdout : stderr;
5118 zprop_desc_t *pdtbl = zfs_prop_get_table();
5119 const char *fmt = gettext("%-16s %-14s\t%s\n");
5120
5121 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
5122 HELP_ALLOW));
5123 (void) fprintf(fp, gettext("Options:\n"));
5124 for (i = 0; i < (un ? unallow_size : allow_size); i += 2) {
5125 const char *opt = opt_desc[i];
5126 const char *optdsc = opt_desc[i + 1];
5127 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
5128 }
5129
5130 (void) fprintf(fp, gettext("\nThe following permissions are "
5131 "supported:\n\n"));
5132 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
5133 gettext("NOTES"));
5134 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
5135 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
5136 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
5137 const char *perm_type = deleg_perm_type(perm_note);
5138 const char *perm_comment = deleg_perm_comment(perm_note);
5139 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
5140 }
5141
5142 for (i = 0; i < ZFS_NUM_PROPS; i++) {
5143 zprop_desc_t *pd = &pdtbl[i];
5144 if (pd->pd_visible != B_TRUE)
5145 continue;
5146
5147 if (pd->pd_attr == PROP_READONLY)
5148 continue;
5149
5150 props[count++] = pd->pd_name;
5151 }
5152 props[count] = NULL;
5153
5154 qsort(props, count, sizeof (char *), prop_cmp);
5155
5156 for (i = 0; i < count; i++)
5157 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
5158
5159 if (msg != NULL)
5160 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
5161
5162 exit(requested ? 0 : 2);
5163 }
5164
5165 static inline const char *
5166 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
5167 char **permsp)
5168 {
5169 if (un && argc == expected_argc - 1)
5170 *permsp = NULL;
5171 else if (argc == expected_argc)
5172 *permsp = argv[argc - 2];
5173 else
5174 allow_usage(un, B_FALSE,
5175 gettext("wrong number of parameters\n"));
5176
5177 return (argv[argc - 1]);
5178 }
5179
5180 static void
5181 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
5182 {
5183 int uge_sum = opts->user + opts->group + opts->everyone;
5184 int csuge_sum = opts->create + opts->set + uge_sum;
5185 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
5186 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
5187
5188 if (uge_sum > 1)
5189 allow_usage(un, B_FALSE,
5190 gettext("-u, -g, and -e are mutually exclusive\n"));
5191
5192 if (opts->prt_usage) {
5193 if (argc == 0 && all_sum == 0)
5194 allow_usage(un, B_TRUE, NULL);
5195 else
5196 usage(B_FALSE);
5197 }
5198
5199 if (opts->set) {
5200 if (csuge_sum > 1)
5201 allow_usage(un, B_FALSE,
5202 gettext("invalid options combined with -s\n"));
5203
5204 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
5205 if (argv[0][0] != '@')
5206 allow_usage(un, B_FALSE,
5207 gettext("invalid set name: missing '@' prefix\n"));
5208 opts->who = argv[0];
5209 } else if (opts->create) {
5210 if (ldcsuge_sum > 1)
5211 allow_usage(un, B_FALSE,
5212 gettext("invalid options combined with -c\n"));
5213 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5214 } else if (opts->everyone) {
5215 if (csuge_sum > 1)
5216 allow_usage(un, B_FALSE,
5217 gettext("invalid options combined with -e\n"));
5218 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5219 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
5220 == 0) {
5221 opts->everyone = B_TRUE;
5222 argc--;
5223 argv++;
5224 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
5225 } else if (argc == 1 && !un) {
5226 opts->prt_perms = B_TRUE;
5227 opts->dataset = argv[argc-1];
5228 } else {
5229 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
5230 opts->who = argv[0];
5231 }
5232
5233 if (!opts->local && !opts->descend) {
5234 opts->local = B_TRUE;
5235 opts->descend = B_TRUE;
5236 }
5237 }
5238
5239 static void
5240 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
5241 const char *who, char *perms, nvlist_t *top_nvl)
5242 {
5243 int i;
5244 char ld[2] = { '\0', '\0' };
5245 char who_buf[MAXNAMELEN + 32];
5246 char base_type = '\0';
5247 char set_type = '\0';
5248 nvlist_t *base_nvl = NULL;
5249 nvlist_t *set_nvl = NULL;
5250 nvlist_t *nvl;
5251
5252 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
5253 nomem();
5254 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
5255 nomem();
5256
5257 switch (type) {
5258 case ZFS_DELEG_NAMED_SET_SETS:
5259 case ZFS_DELEG_NAMED_SET:
5260 set_type = ZFS_DELEG_NAMED_SET_SETS;
5261 base_type = ZFS_DELEG_NAMED_SET;
5262 ld[0] = ZFS_DELEG_NA;
5263 break;
5264 case ZFS_DELEG_CREATE_SETS:
5265 case ZFS_DELEG_CREATE:
5266 set_type = ZFS_DELEG_CREATE_SETS;
5267 base_type = ZFS_DELEG_CREATE;
5268 ld[0] = ZFS_DELEG_NA;
5269 break;
5270 case ZFS_DELEG_USER_SETS:
5271 case ZFS_DELEG_USER:
5272 set_type = ZFS_DELEG_USER_SETS;
5273 base_type = ZFS_DELEG_USER;
5274 if (local)
5275 ld[0] = ZFS_DELEG_LOCAL;
5276 if (descend)
5277 ld[1] = ZFS_DELEG_DESCENDENT;
5278 break;
5279 case ZFS_DELEG_GROUP_SETS:
5280 case ZFS_DELEG_GROUP:
5281 set_type = ZFS_DELEG_GROUP_SETS;
5282 base_type = ZFS_DELEG_GROUP;
5283 if (local)
5284 ld[0] = ZFS_DELEG_LOCAL;
5285 if (descend)
5286 ld[1] = ZFS_DELEG_DESCENDENT;
5287 break;
5288 case ZFS_DELEG_EVERYONE_SETS:
5289 case ZFS_DELEG_EVERYONE:
5290 set_type = ZFS_DELEG_EVERYONE_SETS;
5291 base_type = ZFS_DELEG_EVERYONE;
5292 if (local)
5293 ld[0] = ZFS_DELEG_LOCAL;
5294 if (descend)
5295 ld[1] = ZFS_DELEG_DESCENDENT;
5296 break;
5297
5298 default:
5299 assert(set_type != '\0' && base_type != '\0');
5300 }
5301
5302 if (perms != NULL) {
5303 char *curr = perms;
5304 char *end = curr + strlen(perms);
5305
5306 while (curr < end) {
5307 char *delim = strchr(curr, ',');
5308 if (delim == NULL)
5309 delim = end;
5310 else
5311 *delim = '\0';
5312
5313 if (curr[0] == '@')
5314 nvl = set_nvl;
5315 else
5316 nvl = base_nvl;
5317
5318 (void) nvlist_add_boolean(nvl, curr);
5319 if (delim != end)
5320 *delim = ',';
5321 curr = delim + 1;
5322 }
5323
5324 for (i = 0; i < 2; i++) {
5325 char locality = ld[i];
5326 if (locality == 0)
5327 continue;
5328
5329 if (!nvlist_empty(base_nvl)) {
5330 if (who != NULL)
5331 (void) snprintf(who_buf,
5332 sizeof (who_buf), "%c%c$%s",
5333 base_type, locality, who);
5334 else
5335 (void) snprintf(who_buf,
5336 sizeof (who_buf), "%c%c$",
5337 base_type, locality);
5338
5339 (void) nvlist_add_nvlist(top_nvl, who_buf,
5340 base_nvl);
5341 }
5342
5343
5344 if (!nvlist_empty(set_nvl)) {
5345 if (who != NULL)
5346 (void) snprintf(who_buf,
5347 sizeof (who_buf), "%c%c$%s",
5348 set_type, locality, who);
5349 else
5350 (void) snprintf(who_buf,
5351 sizeof (who_buf), "%c%c$",
5352 set_type, locality);
5353
5354 (void) nvlist_add_nvlist(top_nvl, who_buf,
5355 set_nvl);
5356 }
5357 }
5358 } else {
5359 for (i = 0; i < 2; i++) {
5360 char locality = ld[i];
5361 if (locality == 0)
5362 continue;
5363
5364 if (who != NULL)
5365 (void) snprintf(who_buf, sizeof (who_buf),
5366 "%c%c$%s", base_type, locality, who);
5367 else
5368 (void) snprintf(who_buf, sizeof (who_buf),
5369 "%c%c$", base_type, locality);
5370 (void) nvlist_add_boolean(top_nvl, who_buf);
5371
5372 if (who != NULL)
5373 (void) snprintf(who_buf, sizeof (who_buf),
5374 "%c%c$%s", set_type, locality, who);
5375 else
5376 (void) snprintf(who_buf, sizeof (who_buf),
5377 "%c%c$", set_type, locality);
5378 (void) nvlist_add_boolean(top_nvl, who_buf);
5379 }
5380 }
5381 }
5382
5383 static int
5384 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
5385 {
5386 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
5387 nomem();
5388
5389 if (opts->set) {
5390 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
5391 opts->descend, opts->who, opts->perms, *nvlp);
5392 } else if (opts->create) {
5393 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
5394 opts->descend, NULL, opts->perms, *nvlp);
5395 } else if (opts->everyone) {
5396 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
5397 opts->descend, NULL, opts->perms, *nvlp);
5398 } else {
5399 char *curr = opts->who;
5400 char *end = curr + strlen(curr);
5401
5402 while (curr < end) {
5403 const char *who;
5404 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
5405 char *endch;
5406 char *delim = strchr(curr, ',');
5407 char errbuf[256];
5408 char id[64];
5409 struct passwd *p = NULL;
5410 struct group *g = NULL;
5411
5412 uid_t rid;
5413 if (delim == NULL)
5414 delim = end;
5415 else
5416 *delim = '\0';
5417
5418 rid = (uid_t)strtol(curr, &endch, 0);
5419 if (opts->user) {
5420 who_type = ZFS_DELEG_USER;
5421 if (*endch != '\0')
5422 p = getpwnam(curr);
5423 else
5424 p = getpwuid(rid);
5425
5426 if (p != NULL)
5427 rid = p->pw_uid;
5428 else {
5429 (void) snprintf(errbuf, 256, gettext(
5430 "invalid user %s"), curr);
5431 allow_usage(un, B_TRUE, errbuf);
5432 }
5433 } else if (opts->group) {
5434 who_type = ZFS_DELEG_GROUP;
5435 if (*endch != '\0')
5436 g = getgrnam(curr);
5437 else
5438 g = getgrgid(rid);
5439
5440 if (g != NULL)
5441 rid = g->gr_gid;
5442 else {
5443 (void) snprintf(errbuf, 256, gettext(
5444 "invalid group %s"), curr);
5445 allow_usage(un, B_TRUE, errbuf);
5446 }
5447 } else {
5448 if (*endch != '\0') {
5449 p = getpwnam(curr);
5450 } else {
5451 p = getpwuid(rid);
5452 }
5453
5454 if (p == NULL) {
5455 if (*endch != '\0') {
5456 g = getgrnam(curr);
5457 } else {
5458 g = getgrgid(rid);
5459 }
5460 }
5461
5462 if (p != NULL) {
5463 who_type = ZFS_DELEG_USER;
5464 rid = p->pw_uid;
5465 } else if (g != NULL) {
5466 who_type = ZFS_DELEG_GROUP;
5467 rid = g->gr_gid;
5468 } else {
5469 (void) snprintf(errbuf, 256, gettext(
5470 "invalid user/group %s"), curr);
5471 allow_usage(un, B_TRUE, errbuf);
5472 }
5473 }
5474
5475 (void) sprintf(id, "%u", rid);
5476 who = id;
5477
5478 store_allow_perm(who_type, opts->local,
5479 opts->descend, who, opts->perms, *nvlp);
5480 curr = delim + 1;
5481 }
5482 }
5483
5484 return (0);
5485 }
5486
5487 static void
5488 print_set_creat_perms(uu_avl_t *who_avl)
5489 {
5490 const char *sc_title[] = {
5491 gettext("Permission sets:\n"),
5492 gettext("Create time permissions:\n"),
5493 NULL
5494 };
5495 who_perm_node_t *who_node = NULL;
5496 int prev_weight = -1;
5497
5498 for (who_node = uu_avl_first(who_avl); who_node != NULL;
5499 who_node = uu_avl_next(who_avl, who_node)) {
5500 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5501 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5502 const char *who_name = who_node->who_perm.who_name;
5503 int weight = who_type2weight(who_type);
5504 boolean_t first = B_TRUE;
5505 deleg_perm_node_t *deleg_node;
5506
5507 if (prev_weight != weight) {
5508 (void) printf("%s", sc_title[weight]);
5509 prev_weight = weight;
5510 }
5511
5512 if (who_name == NULL || strnlen(who_name, 1) == 0)
5513 (void) printf("\t");
5514 else
5515 (void) printf("\t%s ", who_name);
5516
5517 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
5518 deleg_node = uu_avl_next(avl, deleg_node)) {
5519 if (first) {
5520 (void) printf("%s",
5521 deleg_node->dpn_perm.dp_name);
5522 first = B_FALSE;
5523 } else
5524 (void) printf(",%s",
5525 deleg_node->dpn_perm.dp_name);
5526 }
5527
5528 (void) printf("\n");
5529 }
5530 }
5531
5532 static void
5533 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
5534 const char *title)
5535 {
5536 who_perm_node_t *who_node = NULL;
5537 boolean_t prt_title = B_TRUE;
5538 uu_avl_walk_t *walk;
5539
5540 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
5541 nomem();
5542
5543 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
5544 const char *who_name = who_node->who_perm.who_name;
5545 const char *nice_who_name = who_node->who_perm.who_ug_name;
5546 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
5547 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
5548 char delim = ' ';
5549 deleg_perm_node_t *deleg_node;
5550 boolean_t prt_who = B_TRUE;
5551
5552 for (deleg_node = uu_avl_first(avl);
5553 deleg_node != NULL;
5554 deleg_node = uu_avl_next(avl, deleg_node)) {
5555 if (local != deleg_node->dpn_perm.dp_local ||
5556 descend != deleg_node->dpn_perm.dp_descend)
5557 continue;
5558
5559 if (prt_who) {
5560 const char *who = NULL;
5561 if (prt_title) {
5562 prt_title = B_FALSE;
5563 (void) printf("%s", title);
5564 }
5565
5566 switch (who_type) {
5567 case ZFS_DELEG_USER_SETS:
5568 case ZFS_DELEG_USER:
5569 who = gettext("user");
5570 if (nice_who_name)
5571 who_name = nice_who_name;
5572 break;
5573 case ZFS_DELEG_GROUP_SETS:
5574 case ZFS_DELEG_GROUP:
5575 who = gettext("group");
5576 if (nice_who_name)
5577 who_name = nice_who_name;
5578 break;
5579 case ZFS_DELEG_EVERYONE_SETS:
5580 case ZFS_DELEG_EVERYONE:
5581 who = gettext("everyone");
5582 who_name = NULL;
5583 break;
5584
5585 default:
5586 assert(who != NULL);
5587 }
5588
5589 prt_who = B_FALSE;
5590 if (who_name == NULL)
5591 (void) printf("\t%s", who);
5592 else
5593 (void) printf("\t%s %s", who, who_name);
5594 }
5595
5596 (void) printf("%c%s", delim,
5597 deleg_node->dpn_perm.dp_name);
5598 delim = ',';
5599 }
5600
5601 if (!prt_who)
5602 (void) printf("\n");
5603 }
5604
5605 uu_avl_walk_end(walk);
5606 }
5607
5608 static void
5609 print_fs_perms(fs_perm_set_t *fspset)
5610 {
5611 fs_perm_node_t *node = NULL;
5612 char buf[MAXNAMELEN + 32];
5613 const char *dsname = buf;
5614
5615 for (node = uu_list_first(fspset->fsps_list); node != NULL;
5616 node = uu_list_next(fspset->fsps_list, node)) {
5617 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
5618 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
5619 int left = 0;
5620
5621 (void) snprintf(buf, sizeof (buf),
5622 gettext("---- Permissions on %s "),
5623 node->fspn_fsperm.fsp_name);
5624 (void) printf("%s", dsname);
5625 left = 70 - strlen(buf);
5626 while (left-- > 0)
5627 (void) printf("-");
5628 (void) printf("\n");
5629
5630 print_set_creat_perms(sc_avl);
5631 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
5632 gettext("Local permissions:\n"));
5633 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
5634 gettext("Descendent permissions:\n"));
5635 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
5636 gettext("Local+Descendent permissions:\n"));
5637 }
5638 }
5639
5640 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
5641
5642 struct deleg_perms {
5643 boolean_t un;
5644 nvlist_t *nvl;
5645 };
5646
5647 static int
5648 set_deleg_perms(zfs_handle_t *zhp, void *data)
5649 {
5650 struct deleg_perms *perms = (struct deleg_perms *)data;
5651 zfs_type_t zfs_type = zfs_get_type(zhp);
5652
5653 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
5654 return (0);
5655
5656 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
5657 }
5658
5659 static int
5660 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
5661 {
5662 zfs_handle_t *zhp;
5663 nvlist_t *perm_nvl = NULL;
5664 nvlist_t *update_perm_nvl = NULL;
5665 int error = 1;
5666 int c;
5667 struct allow_opts opts = { 0 };
5668
5669 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
5670
5671 /* check opts */
5672 while ((c = getopt(argc, argv, optstr)) != -1) {
5673 switch (c) {
5674 case 'l':
5675 opts.local = B_TRUE;
5676 break;
5677 case 'd':
5678 opts.descend = B_TRUE;
5679 break;
5680 case 'u':
5681 opts.user = B_TRUE;
5682 break;
5683 case 'g':
5684 opts.group = B_TRUE;
5685 break;
5686 case 'e':
5687 opts.everyone = B_TRUE;
5688 break;
5689 case 's':
5690 opts.set = B_TRUE;
5691 break;
5692 case 'c':
5693 opts.create = B_TRUE;
5694 break;
5695 case 'r':
5696 opts.recursive = B_TRUE;
5697 break;
5698 case ':':
5699 (void) fprintf(stderr, gettext("missing argument for "
5700 "'%c' option\n"), optopt);
5701 usage(B_FALSE);
5702 break;
5703 case 'h':
5704 opts.prt_usage = B_TRUE;
5705 break;
5706 case '?':
5707 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5708 optopt);
5709 usage(B_FALSE);
5710 }
5711 }
5712
5713 argc -= optind;
5714 argv += optind;
5715
5716 /* check arguments */
5717 parse_allow_args(argc, argv, un, &opts);
5718
5719 /* try to open the dataset */
5720 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5721 ZFS_TYPE_VOLUME)) == NULL) {
5722 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5723 opts.dataset);
5724 return (-1);
5725 }
5726
5727 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5728 goto cleanup2;
5729
5730 fs_perm_set_init(&fs_perm_set);
5731 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5732 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5733 goto cleanup1;
5734 }
5735
5736 if (opts.prt_perms)
5737 print_fs_perms(&fs_perm_set);
5738 else {
5739 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5740 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5741 goto cleanup0;
5742
5743 if (un && opts.recursive) {
5744 struct deleg_perms data = { un, update_perm_nvl };
5745 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5746 &data) != 0)
5747 goto cleanup0;
5748 }
5749 }
5750
5751 error = 0;
5752
5753 cleanup0:
5754 nvlist_free(perm_nvl);
5755 nvlist_free(update_perm_nvl);
5756 cleanup1:
5757 fs_perm_set_fini(&fs_perm_set);
5758 cleanup2:
5759 zfs_close(zhp);
5760
5761 return (error);
5762 }
5763
5764 static int
5765 zfs_do_allow(int argc, char **argv)
5766 {
5767 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5768 }
5769
5770 static int
5771 zfs_do_unallow(int argc, char **argv)
5772 {
5773 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5774 }
5775
5776 static int
5777 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5778 {
5779 int errors = 0;
5780 int i;
5781 const char *tag;
5782 boolean_t recursive = B_FALSE;
5783 const char *opts = holding ? "rt" : "r";
5784 int c;
5785
5786 /* check options */
5787 while ((c = getopt(argc, argv, opts)) != -1) {
5788 switch (c) {
5789 case 'r':
5790 recursive = B_TRUE;
5791 break;
5792 case '?':
5793 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5794 optopt);
5795 usage(B_FALSE);
5796 }
5797 }
5798
5799 argc -= optind;
5800 argv += optind;
5801
5802 /* check number of arguments */
5803 if (argc < 2)
5804 usage(B_FALSE);
5805
5806 tag = argv[0];
5807 --argc;
5808 ++argv;
5809
5810 if (holding && tag[0] == '.') {
5811 /* tags starting with '.' are reserved for libzfs */
5812 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5813 usage(B_FALSE);
5814 }
5815
5816 for (i = 0; i < argc; ++i) {
5817 zfs_handle_t *zhp;
5818 char parent[ZFS_MAX_DATASET_NAME_LEN];
5819 const char *delim;
5820 char *path = argv[i];
5821
5822 delim = strchr(path, '@');
5823 if (delim == NULL) {
5824 (void) fprintf(stderr,
5825 gettext("'%s' is not a snapshot\n"), path);
5826 ++errors;
5827 continue;
5828 }
5829 (void) strncpy(parent, path, delim - path);
5830 parent[delim - path] = '\0';
5831
5832 zhp = zfs_open(g_zfs, parent,
5833 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5834 if (zhp == NULL) {
5835 ++errors;
5836 continue;
5837 }
5838 if (holding) {
5839 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5840 ++errors;
5841 } else {
5842 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5843 ++errors;
5844 }
5845 zfs_close(zhp);
5846 }
5847
5848 return (errors != 0);
5849 }
5850
5851 /*
5852 * zfs hold [-r] [-t] <tag> <snap> ...
5853 *
5854 * -r Recursively hold
5855 *
5856 * Apply a user-hold with the given tag to the list of snapshots.
5857 */
5858 static int
5859 zfs_do_hold(int argc, char **argv)
5860 {
5861 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5862 }
5863
5864 /*
5865 * zfs release [-r] <tag> <snap> ...
5866 *
5867 * -r Recursively release
5868 *
5869 * Release a user-hold with the given tag from the list of snapshots.
5870 */
5871 static int
5872 zfs_do_release(int argc, char **argv)
5873 {
5874 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5875 }
5876
5877 typedef struct holds_cbdata {
5878 boolean_t cb_recursive;
5879 const char *cb_snapname;
5880 nvlist_t **cb_nvlp;
5881 size_t cb_max_namelen;
5882 size_t cb_max_taglen;
5883 } holds_cbdata_t;
5884
5885 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5886 #define DATETIME_BUF_LEN (32)
5887 /*
5888 *
5889 */
5890 static void
5891 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5892 {
5893 int i;
5894 nvpair_t *nvp = NULL;
5895 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5896 const char *col;
5897
5898 if (!scripted) {
5899 for (i = 0; i < 3; i++) {
5900 col = gettext(hdr_cols[i]);
5901 if (i < 2)
5902 (void) printf("%-*s ", i ? tagwidth : nwidth,
5903 col);
5904 else
5905 (void) printf("%s\n", col);
5906 }
5907 }
5908
5909 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5910 char *zname = nvpair_name(nvp);
5911 nvlist_t *nvl2;
5912 nvpair_t *nvp2 = NULL;
5913 (void) nvpair_value_nvlist(nvp, &nvl2);
5914 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5915 char tsbuf[DATETIME_BUF_LEN];
5916 char *tagname = nvpair_name(nvp2);
5917 uint64_t val = 0;
5918 time_t time;
5919 struct tm t;
5920
5921 (void) nvpair_value_uint64(nvp2, &val);
5922 time = (time_t)val;
5923 (void) localtime_r(&time, &t);
5924 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5925 gettext(STRFTIME_FMT_STR), &t);
5926
5927 if (scripted) {
5928 (void) printf("%s\t%s\t%s\n", zname,
5929 tagname, tsbuf);
5930 } else {
5931 (void) printf("%-*s %-*s %s\n", nwidth,
5932 zname, tagwidth, tagname, tsbuf);
5933 }
5934 }
5935 }
5936 }
5937
5938 /*
5939 * Generic callback function to list a dataset or snapshot.
5940 */
5941 static int
5942 holds_callback(zfs_handle_t *zhp, void *data)
5943 {
5944 holds_cbdata_t *cbp = data;
5945 nvlist_t *top_nvl = *cbp->cb_nvlp;
5946 nvlist_t *nvl = NULL;
5947 nvpair_t *nvp = NULL;
5948 const char *zname = zfs_get_name(zhp);
5949 size_t znamelen = strlen(zname);
5950
5951 if (cbp->cb_recursive) {
5952 const char *snapname;
5953 char *delim = strchr(zname, '@');
5954 if (delim == NULL)
5955 return (0);
5956
5957 snapname = delim + 1;
5958 if (strcmp(cbp->cb_snapname, snapname))
5959 return (0);
5960 }
5961
5962 if (zfs_get_holds(zhp, &nvl) != 0)
5963 return (-1);
5964
5965 if (znamelen > cbp->cb_max_namelen)
5966 cbp->cb_max_namelen = znamelen;
5967
5968 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5969 const char *tag = nvpair_name(nvp);
5970 size_t taglen = strlen(tag);
5971 if (taglen > cbp->cb_max_taglen)
5972 cbp->cb_max_taglen = taglen;
5973 }
5974
5975 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5976 }
5977
5978 /*
5979 * zfs holds [-rH] <snap> ...
5980 *
5981 * -r Lists holds that are set on the named snapshots recursively.
5982 * -H Scripted mode; elide headers and separate columns by tabs.
5983 */
5984 static int
5985 zfs_do_holds(int argc, char **argv)
5986 {
5987 int errors = 0;
5988 int c;
5989 int i;
5990 boolean_t scripted = B_FALSE;
5991 boolean_t recursive = B_FALSE;
5992 const char *opts = "rH";
5993 nvlist_t *nvl;
5994
5995 int types = ZFS_TYPE_SNAPSHOT;
5996 holds_cbdata_t cb = { 0 };
5997
5998 int limit = 0;
5999 int ret = 0;
6000 int flags = 0;
6001
6002 /* check options */
6003 while ((c = getopt(argc, argv, opts)) != -1) {
6004 switch (c) {
6005 case 'r':
6006 recursive = B_TRUE;
6007 break;
6008 case 'H':
6009 scripted = B_TRUE;
6010 break;
6011 case '?':
6012 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6013 optopt);
6014 usage(B_FALSE);
6015 }
6016 }
6017
6018 if (recursive) {
6019 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
6020 flags |= ZFS_ITER_RECURSE;
6021 }
6022
6023 argc -= optind;
6024 argv += optind;
6025
6026 /* check number of arguments */
6027 if (argc < 1)
6028 usage(B_FALSE);
6029
6030 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
6031 nomem();
6032
6033 for (i = 0; i < argc; ++i) {
6034 char *snapshot = argv[i];
6035 const char *delim;
6036 const char *snapname;
6037
6038 delim = strchr(snapshot, '@');
6039 if (delim == NULL) {
6040 (void) fprintf(stderr,
6041 gettext("'%s' is not a snapshot\n"), snapshot);
6042 ++errors;
6043 continue;
6044 }
6045 snapname = delim + 1;
6046 if (recursive)
6047 snapshot[delim - snapshot] = '\0';
6048
6049 cb.cb_recursive = recursive;
6050 cb.cb_snapname = snapname;
6051 cb.cb_nvlp = &nvl;
6052
6053 /*
6054 * 1. collect holds data, set format options
6055 */
6056 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
6057 holds_callback, &cb);
6058 if (ret != 0)
6059 ++errors;
6060 }
6061
6062 /*
6063 * 2. print holds data
6064 */
6065 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
6066
6067 if (nvlist_empty(nvl))
6068 (void) fprintf(stderr, gettext("no datasets available\n"));
6069
6070 nvlist_free(nvl);
6071
6072 return (0 != errors);
6073 }
6074
6075 #define CHECK_SPINNER 30
6076 #define SPINNER_TIME 3 /* seconds */
6077 #define MOUNT_TIME 1 /* seconds */
6078
6079 typedef struct get_all_state {
6080 boolean_t ga_verbose;
6081 get_all_cb_t *ga_cbp;
6082 } get_all_state_t;
6083
6084 static int
6085 get_one_dataset(zfs_handle_t *zhp, void *data)
6086 {
6087 static char *spin[] = { "-", "\\", "|", "/" };
6088 static int spinval = 0;
6089 static int spincheck = 0;
6090 static time_t last_spin_time = (time_t)0;
6091 get_all_state_t *state = data;
6092 zfs_type_t type = zfs_get_type(zhp);
6093
6094 if (state->ga_verbose) {
6095 if (--spincheck < 0) {
6096 time_t now = time(NULL);
6097 if (last_spin_time + SPINNER_TIME < now) {
6098 update_progress(spin[spinval++ % 4]);
6099 last_spin_time = now;
6100 }
6101 spincheck = CHECK_SPINNER;
6102 }
6103 }
6104
6105 /*
6106 * Iterate over any nested datasets.
6107 */
6108 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
6109 zfs_close(zhp);
6110 return (1);
6111 }
6112
6113 /*
6114 * Skip any datasets whose type does not match.
6115 */
6116 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
6117 zfs_close(zhp);
6118 return (0);
6119 }
6120 libzfs_add_handle(state->ga_cbp, zhp);
6121 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc);
6122
6123 return (0);
6124 }
6125
6126 static void
6127 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose)
6128 {
6129 get_all_state_t state = {
6130 .ga_verbose = verbose,
6131 .ga_cbp = cbp
6132 };
6133
6134 if (verbose)
6135 set_progress_header(gettext("Reading ZFS config"));
6136 (void) zfs_iter_root(g_zfs, get_one_dataset, &state);
6137
6138 if (verbose)
6139 finish_progress(gettext("done."));
6140 }
6141
6142 /*
6143 * Generic callback for sharing or mounting filesystems. Because the code is so
6144 * similar, we have a common function with an extra parameter to determine which
6145 * mode we are using.
6146 */
6147 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t;
6148
6149 typedef struct share_mount_state {
6150 share_mount_op_t sm_op;
6151 boolean_t sm_verbose;
6152 int sm_flags;
6153 char *sm_options;
6154 char *sm_proto; /* only valid for OP_SHARE */
6155 pthread_mutex_t sm_lock; /* protects the remaining fields */
6156 uint_t sm_total; /* number of filesystems to process */
6157 uint_t sm_done; /* number of filesystems processed */
6158 int sm_status; /* -1 if any of the share/mount operations failed */
6159 } share_mount_state_t;
6160
6161 /*
6162 * Share or mount a dataset.
6163 */
6164 static int
6165 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
6166 boolean_t explicit, const char *options)
6167 {
6168 char mountpoint[ZFS_MAXPROPLEN];
6169 char shareopts[ZFS_MAXPROPLEN];
6170 char smbshareopts[ZFS_MAXPROPLEN];
6171 const char *cmdname = op == OP_SHARE ? "share" : "mount";
6172 struct mnttab mnt;
6173 uint64_t zoned, canmount;
6174 boolean_t shared_nfs, shared_smb;
6175
6176 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
6177
6178 /*
6179 * Check to make sure we can mount/share this dataset. If we
6180 * are in the global zone and the filesystem is exported to a
6181 * local zone, or if we are in a local zone and the
6182 * filesystem is not exported, then it is an error.
6183 */
6184 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
6185
6186 if (zoned && getzoneid() == GLOBAL_ZONEID) {
6187 if (!explicit)
6188 return (0);
6189
6190 (void) fprintf(stderr, gettext("cannot %s '%s': "
6191 "dataset is exported to a local zone\n"), cmdname,
6192 zfs_get_name(zhp));
6193 return (1);
6194
6195 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
6196 if (!explicit)
6197 return (0);
6198
6199 (void) fprintf(stderr, gettext("cannot %s '%s': "
6200 "permission denied\n"), cmdname,
6201 zfs_get_name(zhp));
6202 return (1);
6203 }
6204
6205 /*
6206 * Ignore any filesystems which don't apply to us. This
6207 * includes those with a legacy mountpoint, or those with
6208 * legacy share options.
6209 */
6210 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
6211 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
6212 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
6213 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
6214 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
6215 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
6216
6217 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
6218 strcmp(smbshareopts, "off") == 0) {
6219 if (!explicit)
6220 return (0);
6221
6222 (void) fprintf(stderr, gettext("cannot share '%s': "
6223 "legacy share\n"), zfs_get_name(zhp));
6224 (void) fprintf(stderr, gettext("use share(1M) to "
6225 "share this filesystem, or set "
6226 "sharenfs property on\n"));
6227 return (1);
6228 }
6229
6230 /*
6231 * We cannot share or mount legacy filesystems. If the
6232 * shareopts is non-legacy but the mountpoint is legacy, we
6233 * treat it as a legacy share.
6234 */
6235 if (strcmp(mountpoint, "legacy") == 0) {
6236 if (!explicit)
6237 return (0);
6238
6239 (void) fprintf(stderr, gettext("cannot %s '%s': "
6240 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
6241 (void) fprintf(stderr, gettext("use %s(1M) to "
6242 "%s this filesystem\n"), cmdname, cmdname);
6243 return (1);
6244 }
6245
6246 if (strcmp(mountpoint, "none") == 0) {
6247 if (!explicit)
6248 return (0);
6249
6250 (void) fprintf(stderr, gettext("cannot %s '%s': no "
6251 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
6252 return (1);
6253 }
6254
6255 /*
6256 * canmount explicit outcome
6257 * on no pass through
6258 * on yes pass through
6259 * off no return 0
6260 * off yes display error, return 1
6261 * noauto no return 0
6262 * noauto yes pass through
6263 */
6264 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
6265 if (canmount == ZFS_CANMOUNT_OFF) {
6266 if (!explicit)
6267 return (0);
6268
6269 (void) fprintf(stderr, gettext("cannot %s '%s': "
6270 "'canmount' property is set to 'off'\n"), cmdname,
6271 zfs_get_name(zhp));
6272 return (1);
6273 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
6274 return (0);
6275 }
6276
6277 /*
6278 * If this filesystem is encrypted and does not have
6279 * a loaded key, we can not mount it.
6280 */
6281 if ((flags & MS_CRYPT) == 0 &&
6282 zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF &&
6283 zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) ==
6284 ZFS_KEYSTATUS_UNAVAILABLE) {
6285 if (!explicit)
6286 return (0);
6287
6288 (void) fprintf(stderr, gettext("cannot %s '%s': "
6289 "encryption key not loaded\n"), cmdname, zfs_get_name(zhp));
6290 return (1);
6291 }
6292
6293 /*
6294 * If this filesystem is inconsistent and has a receive resume
6295 * token, we can not mount it.
6296 */
6297 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) &&
6298 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
6299 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) {
6300 if (!explicit)
6301 return (0);
6302
6303 (void) fprintf(stderr, gettext("cannot %s '%s': "
6304 "Contains partially-completed state from "
6305 "\"zfs receive -s\", which can be resumed with "
6306 "\"zfs send -t\"\n"),
6307 cmdname, zfs_get_name(zhp));
6308 return (1);
6309 }
6310
6311 /*
6312 * At this point, we have verified that the mountpoint and/or
6313 * shareopts are appropriate for auto management. If the
6314 * filesystem is already mounted or shared, return (failing
6315 * for explicit requests); otherwise mount or share the
6316 * filesystem.
6317 */
6318 switch (op) {
6319 case OP_SHARE:
6320
6321 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
6322 shared_smb = zfs_is_shared_smb(zhp, NULL);
6323
6324 if ((shared_nfs && shared_smb) ||
6325 (shared_nfs && strcmp(shareopts, "on") == 0 &&
6326 strcmp(smbshareopts, "off") == 0) ||
6327 (shared_smb && strcmp(smbshareopts, "on") == 0 &&
6328 strcmp(shareopts, "off") == 0)) {
6329 if (!explicit)
6330 return (0);
6331
6332 (void) fprintf(stderr, gettext("cannot share "
6333 "'%s': filesystem already shared\n"),
6334 zfs_get_name(zhp));
6335 return (1);
6336 }
6337
6338 if (!zfs_is_mounted(zhp, NULL) &&
6339 zfs_mount(zhp, NULL, flags) != 0)
6340 return (1);
6341
6342 if (protocol == NULL) {
6343 if (zfs_shareall(zhp) != 0)
6344 return (1);
6345 } else if (strcmp(protocol, "nfs") == 0) {
6346 if (zfs_share_nfs(zhp))
6347 return (1);
6348 } else if (strcmp(protocol, "smb") == 0) {
6349 if (zfs_share_smb(zhp))
6350 return (1);
6351 } else {
6352 (void) fprintf(stderr, gettext("cannot share "
6353 "'%s': invalid share type '%s' "
6354 "specified\n"),
6355 zfs_get_name(zhp), protocol);
6356 return (1);
6357 }
6358
6359 break;
6360
6361 case OP_MOUNT:
6362 if (options == NULL)
6363 mnt.mnt_mntopts = "";
6364 else
6365 mnt.mnt_mntopts = (char *)options;
6366
6367 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
6368 zfs_is_mounted(zhp, NULL)) {
6369 if (!explicit)
6370 return (0);
6371
6372 (void) fprintf(stderr, gettext("cannot mount "
6373 "'%s': filesystem already mounted\n"),
6374 zfs_get_name(zhp));
6375 return (1);
6376 }
6377
6378 if (zfs_mount(zhp, options, flags) != 0)
6379 return (1);
6380 break;
6381 }
6382
6383 return (0);
6384 }
6385
6386 /*
6387 * Reports progress in the form "(current/total)". Not thread-safe.
6388 */
6389 static void
6390 report_mount_progress(int current, int total)
6391 {
6392 static time_t last_progress_time = 0;
6393 time_t now = time(NULL);
6394 char info[32];
6395
6396 /* report 1..n instead of 0..n-1 */
6397 ++current;
6398
6399 /* display header if we're here for the first time */
6400 if (current == 1) {
6401 set_progress_header(gettext("Mounting ZFS filesystems"));
6402 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
6403 /* too soon to report again */
6404 return;
6405 }
6406
6407 last_progress_time = now;
6408
6409 (void) sprintf(info, "(%d/%d)", current, total);
6410
6411 if (current == total)
6412 finish_progress(info);
6413 else
6414 update_progress(info);
6415 }
6416
6417 /*
6418 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and
6419 * updates the progress meter.
6420 */
6421 static int
6422 share_mount_one_cb(zfs_handle_t *zhp, void *arg)
6423 {
6424 share_mount_state_t *sms = arg;
6425 int ret;
6426
6427 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto,
6428 B_FALSE, sms->sm_options);
6429
6430 pthread_mutex_lock(&sms->sm_lock);
6431 if (ret != 0)
6432 sms->sm_status = ret;
6433 sms->sm_done++;
6434 if (sms->sm_verbose)
6435 report_mount_progress(sms->sm_done, sms->sm_total);
6436 pthread_mutex_unlock(&sms->sm_lock);
6437 return (ret);
6438 }
6439
6440 static void
6441 append_options(char *mntopts, char *newopts)
6442 {
6443 int len = strlen(mntopts);
6444
6445 /* original length plus new string to append plus 1 for the comma */
6446 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
6447 (void) fprintf(stderr, gettext("the opts argument for "
6448 "'%s' option is too long (more than %d chars)\n"),
6449 "-o", MNT_LINE_MAX);
6450 usage(B_FALSE);
6451 }
6452
6453 if (*mntopts)
6454 mntopts[len++] = ',';
6455
6456 (void) strcpy(&mntopts[len], newopts);
6457 }
6458
6459 static int
6460 share_mount(int op, int argc, char **argv)
6461 {
6462 int do_all = 0;
6463 boolean_t verbose = B_FALSE;
6464 int c, ret = 0;
6465 char *options = NULL;
6466 int flags = 0;
6467
6468 /* check options */
6469 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:O" : "al"))
6470 != -1) {
6471 switch (c) {
6472 case 'a':
6473 do_all = 1;
6474 break;
6475 case 'v':
6476 verbose = B_TRUE;
6477 break;
6478 case 'l':
6479 flags |= MS_CRYPT;
6480 break;
6481 case 'o':
6482 if (*optarg == '\0') {
6483 (void) fprintf(stderr, gettext("empty mount "
6484 "options (-o) specified\n"));
6485 usage(B_FALSE);
6486 }
6487
6488 if (options == NULL)
6489 options = safe_malloc(MNT_LINE_MAX + 1);
6490
6491 /* option validation is done later */
6492 append_options(options, optarg);
6493 break;
6494 case 'O':
6495 flags |= MS_OVERLAY;
6496 break;
6497 case ':':
6498 (void) fprintf(stderr, gettext("missing argument for "
6499 "'%c' option\n"), optopt);
6500 usage(B_FALSE);
6501 break;
6502 case '?':
6503 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6504 optopt);
6505 usage(B_FALSE);
6506 }
6507 }
6508
6509 argc -= optind;
6510 argv += optind;
6511
6512 /* check number of arguments */
6513 if (do_all) {
6514 char *protocol = NULL;
6515
6516 if (op == OP_SHARE && argc > 0) {
6517 if (strcmp(argv[0], "nfs") != 0 &&
6518 strcmp(argv[0], "smb") != 0) {
6519 (void) fprintf(stderr, gettext("share type "
6520 "must be 'nfs' or 'smb'\n"));
6521 usage(B_FALSE);
6522 }
6523 protocol = argv[0];
6524 argc--;
6525 argv++;
6526 }
6527
6528 if (argc != 0) {
6529 (void) fprintf(stderr, gettext("too many arguments\n"));
6530 usage(B_FALSE);
6531 }
6532
6533 start_progress_timer();
6534 get_all_cb_t cb = { 0 };
6535 get_all_datasets(&cb, verbose);
6536
6537 if (cb.cb_used == 0) {
6538 if (options != NULL)
6539 free(options);
6540 return (0);
6541 }
6542
6543 share_mount_state_t share_mount_state = { 0 };
6544 share_mount_state.sm_op = op;
6545 share_mount_state.sm_verbose = verbose;
6546 share_mount_state.sm_flags = flags;
6547 share_mount_state.sm_options = options;
6548 share_mount_state.sm_proto = protocol;
6549 share_mount_state.sm_total = cb.cb_used;
6550 pthread_mutex_init(&share_mount_state.sm_lock, NULL);
6551
6552 /*
6553 * libshare isn't mt-safe, so only do the operation in parallel
6554 * if we're mounting.
6555 */
6556 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used,
6557 share_mount_one_cb, &share_mount_state, op == OP_MOUNT);
6558 ret = share_mount_state.sm_status;
6559
6560 for (int i = 0; i < cb.cb_used; i++)
6561 zfs_close(cb.cb_handles[i]);
6562 free(cb.cb_handles);
6563 } else if (argc == 0) {
6564 struct mnttab entry;
6565
6566 if ((op == OP_SHARE) || (options != NULL)) {
6567 (void) fprintf(stderr, gettext("missing filesystem "
6568 "argument (specify -a for all)\n"));
6569 usage(B_FALSE);
6570 }
6571
6572 /*
6573 * When mount is given no arguments, go through
6574 * /proc/self/mounts and display any active ZFS mounts.
6575 * We hide any snapshots, since they are controlled
6576 * automatically.
6577 */
6578
6579 /* Reopen MNTTAB to prevent reading stale data from open file */
6580 if (freopen(MNTTAB, "r", mnttab_file) == NULL) {
6581 if (options != NULL)
6582 free(options);
6583 return (ENOENT);
6584 }
6585
6586 while (getmntent(mnttab_file, &entry) == 0) {
6587 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
6588 strchr(entry.mnt_special, '@') != NULL)
6589 continue;
6590
6591 (void) printf("%-30s %s\n", entry.mnt_special,
6592 entry.mnt_mountp);
6593 }
6594
6595 } else {
6596 zfs_handle_t *zhp;
6597
6598 if (argc > 1) {
6599 (void) fprintf(stderr,
6600 gettext("too many arguments\n"));
6601 usage(B_FALSE);
6602 }
6603
6604 if ((zhp = zfs_open(g_zfs, argv[0],
6605 ZFS_TYPE_FILESYSTEM)) == NULL) {
6606 ret = 1;
6607 } else {
6608 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
6609 options);
6610 zfs_close(zhp);
6611 }
6612 }
6613
6614 if (options != NULL)
6615 free(options);
6616
6617 return (ret);
6618 }
6619
6620 /*
6621 * zfs mount -a [nfs]
6622 * zfs mount filesystem
6623 *
6624 * Mount all filesystems, or mount the given filesystem.
6625 */
6626 static int
6627 zfs_do_mount(int argc, char **argv)
6628 {
6629 return (share_mount(OP_MOUNT, argc, argv));
6630 }
6631
6632 /*
6633 * zfs share -a [nfs | smb]
6634 * zfs share filesystem
6635 *
6636 * Share all filesystems, or share the given filesystem.
6637 */
6638 static int
6639 zfs_do_share(int argc, char **argv)
6640 {
6641 return (share_mount(OP_SHARE, argc, argv));
6642 }
6643
6644 typedef struct unshare_unmount_node {
6645 zfs_handle_t *un_zhp;
6646 char *un_mountp;
6647 uu_avl_node_t un_avlnode;
6648 } unshare_unmount_node_t;
6649
6650 /* ARGSUSED */
6651 static int
6652 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
6653 {
6654 const unshare_unmount_node_t *l = larg;
6655 const unshare_unmount_node_t *r = rarg;
6656
6657 return (strcmp(l->un_mountp, r->un_mountp));
6658 }
6659
6660 /*
6661 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
6662 * absolute path, find the entry /proc/self/mounts, verify that its a
6663 * ZFS filesystems, and unmount it appropriately.
6664 */
6665 static int
6666 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
6667 {
6668 zfs_handle_t *zhp;
6669 int ret = 0;
6670 struct stat64 statbuf;
6671 struct extmnttab entry;
6672 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
6673 ino_t path_inode;
6674
6675 /*
6676 * Search for the path in /proc/self/mounts. Rather than looking for the
6677 * specific path, which can be fooled by non-standard paths (i.e. ".."
6678 * or "//"), we stat() the path and search for the corresponding
6679 * (major,minor) device pair.
6680 */
6681 if (stat64(path, &statbuf) != 0) {
6682 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6683 cmdname, path, strerror(errno));
6684 return (1);
6685 }
6686 path_inode = statbuf.st_ino;
6687
6688 /*
6689 * Search for the given (major,minor) pair in the mount table.
6690 */
6691
6692 /* Reopen MNTTAB to prevent reading stale data from open file */
6693 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6694 return (ENOENT);
6695
6696 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
6697 if (entry.mnt_major == major(statbuf.st_dev) &&
6698 entry.mnt_minor == minor(statbuf.st_dev))
6699 break;
6700 }
6701 if (ret != 0) {
6702 if (op == OP_SHARE) {
6703 (void) fprintf(stderr, gettext("cannot %s '%s': not "
6704 "currently mounted\n"), cmdname, path);
6705 return (1);
6706 }
6707 (void) fprintf(stderr, gettext("warning: %s not in"
6708 "/proc/self/mounts\n"), path);
6709 if ((ret = umount2(path, flags)) != 0)
6710 (void) fprintf(stderr, gettext("%s: %s\n"), path,
6711 strerror(errno));
6712 return (ret != 0);
6713 }
6714
6715 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
6716 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
6717 "filesystem\n"), cmdname, path);
6718 return (1);
6719 }
6720
6721 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6722 ZFS_TYPE_FILESYSTEM)) == NULL)
6723 return (1);
6724
6725 ret = 1;
6726 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
6727 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
6728 cmdname, path, strerror(errno));
6729 goto out;
6730 } else if (statbuf.st_ino != path_inode) {
6731 (void) fprintf(stderr, gettext("cannot "
6732 "%s '%s': not a mountpoint\n"), cmdname, path);
6733 goto out;
6734 }
6735
6736 if (op == OP_SHARE) {
6737 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6738 char smbshare_prop[ZFS_MAXPROPLEN];
6739
6740 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
6741 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
6742 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
6743 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
6744
6745 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6746 strcmp(smbshare_prop, "off") == 0) {
6747 (void) fprintf(stderr, gettext("cannot unshare "
6748 "'%s': legacy share\n"), path);
6749 (void) fprintf(stderr, gettext("use exportfs(8) "
6750 "or smbcontrol(1) to unshare this filesystem\n"));
6751 } else if (!zfs_is_shared(zhp)) {
6752 (void) fprintf(stderr, gettext("cannot unshare '%s': "
6753 "not currently shared\n"), path);
6754 } else {
6755 ret = zfs_unshareall_bypath(zhp, path);
6756 }
6757 } else {
6758 char mtpt_prop[ZFS_MAXPROPLEN];
6759
6760 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
6761 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
6762
6763 if (is_manual) {
6764 ret = zfs_unmount(zhp, NULL, flags);
6765 } else if (strcmp(mtpt_prop, "legacy") == 0) {
6766 (void) fprintf(stderr, gettext("cannot unmount "
6767 "'%s': legacy mountpoint\n"),
6768 zfs_get_name(zhp));
6769 (void) fprintf(stderr, gettext("use umount(8) "
6770 "to unmount this filesystem\n"));
6771 } else {
6772 ret = zfs_unmountall(zhp, flags);
6773 }
6774 }
6775
6776 out:
6777 zfs_close(zhp);
6778
6779 return (ret != 0);
6780 }
6781
6782 /*
6783 * Generic callback for unsharing or unmounting a filesystem.
6784 */
6785 static int
6786 unshare_unmount(int op, int argc, char **argv)
6787 {
6788 int do_all = 0;
6789 int flags = 0;
6790 int ret = 0;
6791 int c;
6792 zfs_handle_t *zhp;
6793 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6794 char sharesmb[ZFS_MAXPROPLEN];
6795
6796 /* check options */
6797 while ((c = getopt(argc, argv, op == OP_SHARE ? ":a" : "af")) != -1) {
6798 switch (c) {
6799 case 'a':
6800 do_all = 1;
6801 break;
6802 case 'f':
6803 flags = MS_FORCE;
6804 break;
6805 case ':':
6806 (void) fprintf(stderr, gettext("missing argument for "
6807 "'%c' option\n"), optopt);
6808 usage(B_FALSE);
6809 break;
6810 case '?':
6811 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6812 optopt);
6813 usage(B_FALSE);
6814 }
6815 }
6816
6817 argc -= optind;
6818 argv += optind;
6819
6820 if (do_all) {
6821 /*
6822 * We could make use of zfs_for_each() to walk all datasets in
6823 * the system, but this would be very inefficient, especially
6824 * since we would have to linearly search /proc/self/mounts for
6825 * each one. Instead, do one pass through /proc/self/mounts
6826 * looking for zfs entries and call zfs_unmount() for each one.
6827 *
6828 * Things get a little tricky if the administrator has created
6829 * mountpoints beneath other ZFS filesystems. In this case, we
6830 * have to unmount the deepest filesystems first. To accomplish
6831 * this, we place all the mountpoints in an AVL tree sorted by
6832 * the special type (dataset name), and walk the result in
6833 * reverse to make sure to get any snapshots first.
6834 */
6835 struct mnttab entry;
6836 uu_avl_pool_t *pool;
6837 uu_avl_t *tree = NULL;
6838 unshare_unmount_node_t *node;
6839 uu_avl_index_t idx;
6840 uu_avl_walk_t *walk;
6841 char *protocol = NULL;
6842
6843 if (op == OP_SHARE && argc > 0) {
6844 if (strcmp(argv[0], "nfs") != 0 &&
6845 strcmp(argv[0], "smb") != 0) {
6846 (void) fprintf(stderr, gettext("share type "
6847 "must be 'nfs' or 'smb'\n"));
6848 usage(B_FALSE);
6849 }
6850 protocol = argv[0];
6851 argc--;
6852 argv++;
6853 }
6854
6855 if (argc != 0) {
6856 (void) fprintf(stderr, gettext("too many arguments\n"));
6857 usage(B_FALSE);
6858 }
6859
6860 if (((pool = uu_avl_pool_create("unmount_pool",
6861 sizeof (unshare_unmount_node_t),
6862 offsetof(unshare_unmount_node_t, un_avlnode),
6863 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6864 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6865 nomem();
6866
6867 /* Reopen MNTTAB to prevent reading stale data from open file */
6868 if (freopen(MNTTAB, "r", mnttab_file) == NULL)
6869 return (ENOENT);
6870
6871 while (getmntent(mnttab_file, &entry) == 0) {
6872
6873 /* ignore non-ZFS entries */
6874 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6875 continue;
6876
6877 /* ignore snapshots */
6878 if (strchr(entry.mnt_special, '@') != NULL)
6879 continue;
6880
6881 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6882 ZFS_TYPE_FILESYSTEM)) == NULL) {
6883 ret = 1;
6884 continue;
6885 }
6886
6887 /*
6888 * Ignore datasets that are excluded/restricted by
6889 * parent pool name.
6890 */
6891 if (zpool_skip_pool(zfs_get_pool_name(zhp))) {
6892 zfs_close(zhp);
6893 continue;
6894 }
6895
6896 switch (op) {
6897 case OP_SHARE:
6898 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6899 nfs_mnt_prop,
6900 sizeof (nfs_mnt_prop),
6901 NULL, NULL, 0, B_FALSE) == 0);
6902 if (strcmp(nfs_mnt_prop, "off") != 0)
6903 break;
6904 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6905 nfs_mnt_prop,
6906 sizeof (nfs_mnt_prop),
6907 NULL, NULL, 0, B_FALSE) == 0);
6908 if (strcmp(nfs_mnt_prop, "off") == 0)
6909 continue;
6910 break;
6911 case OP_MOUNT:
6912 /* Ignore legacy mounts */
6913 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6914 nfs_mnt_prop,
6915 sizeof (nfs_mnt_prop),
6916 NULL, NULL, 0, B_FALSE) == 0);
6917 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6918 continue;
6919 /* Ignore canmount=noauto mounts */
6920 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6921 ZFS_CANMOUNT_NOAUTO)
6922 continue;
6923 default:
6924 break;
6925 }
6926
6927 node = safe_malloc(sizeof (unshare_unmount_node_t));
6928 node->un_zhp = zhp;
6929 node->un_mountp = safe_strdup(entry.mnt_mountp);
6930
6931 uu_avl_node_init(node, &node->un_avlnode, pool);
6932
6933 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6934 uu_avl_insert(tree, node, idx);
6935 } else {
6936 zfs_close(node->un_zhp);
6937 free(node->un_mountp);
6938 free(node);
6939 }
6940 }
6941
6942 /*
6943 * Walk the AVL tree in reverse, unmounting each filesystem and
6944 * removing it from the AVL tree in the process.
6945 */
6946 if ((walk = uu_avl_walk_start(tree,
6947 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6948 nomem();
6949
6950 while ((node = uu_avl_walk_next(walk)) != NULL) {
6951 uu_avl_remove(tree, node);
6952
6953 switch (op) {
6954 case OP_SHARE:
6955 if (zfs_unshareall_bytype(node->un_zhp,
6956 node->un_mountp, protocol) != 0)
6957 ret = 1;
6958 break;
6959
6960 case OP_MOUNT:
6961 if (zfs_unmount(node->un_zhp,
6962 node->un_zhp->zfs_name, flags) != 0)
6963 ret = 1;
6964 break;
6965 }
6966
6967 zfs_close(node->un_zhp);
6968 free(node->un_mountp);
6969 free(node);
6970 }
6971
6972 uu_avl_walk_end(walk);
6973 uu_avl_destroy(tree);
6974 uu_avl_pool_destroy(pool);
6975
6976 } else {
6977 if (argc != 1) {
6978 if (argc == 0)
6979 (void) fprintf(stderr,
6980 gettext("missing filesystem argument\n"));
6981 else
6982 (void) fprintf(stderr,
6983 gettext("too many arguments\n"));
6984 usage(B_FALSE);
6985 }
6986
6987 /*
6988 * We have an argument, but it may be a full path or a ZFS
6989 * filesystem. Pass full paths off to unmount_path() (shared by
6990 * manual_unmount), otherwise open the filesystem and pass to
6991 * zfs_unmount().
6992 */
6993 if (argv[0][0] == '/')
6994 return (unshare_unmount_path(op, argv[0],
6995 flags, B_FALSE));
6996
6997 if ((zhp = zfs_open(g_zfs, argv[0],
6998 ZFS_TYPE_FILESYSTEM)) == NULL)
6999 return (1);
7000
7001 verify(zfs_prop_get(zhp, op == OP_SHARE ?
7002 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
7003 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
7004 NULL, 0, B_FALSE) == 0);
7005
7006 switch (op) {
7007 case OP_SHARE:
7008 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
7009 nfs_mnt_prop,
7010 sizeof (nfs_mnt_prop),
7011 NULL, NULL, 0, B_FALSE) == 0);
7012 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
7013 sharesmb, sizeof (sharesmb), NULL, NULL,
7014 0, B_FALSE) == 0);
7015
7016 if (strcmp(nfs_mnt_prop, "off") == 0 &&
7017 strcmp(sharesmb, "off") == 0) {
7018 (void) fprintf(stderr, gettext("cannot "
7019 "unshare '%s': legacy share\n"),
7020 zfs_get_name(zhp));
7021 (void) fprintf(stderr, gettext("use "
7022 "unshare(1M) to unshare this "
7023 "filesystem\n"));
7024 ret = 1;
7025 } else if (!zfs_is_shared(zhp)) {
7026 (void) fprintf(stderr, gettext("cannot "
7027 "unshare '%s': not currently "
7028 "shared\n"), zfs_get_name(zhp));
7029 ret = 1;
7030 } else if (zfs_unshareall(zhp) != 0) {
7031 ret = 1;
7032 }
7033 break;
7034
7035 case OP_MOUNT:
7036 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
7037 (void) fprintf(stderr, gettext("cannot "
7038 "unmount '%s': legacy "
7039 "mountpoint\n"), zfs_get_name(zhp));
7040 (void) fprintf(stderr, gettext("use "
7041 "umount(1M) to unmount this "
7042 "filesystem\n"));
7043 ret = 1;
7044 } else if (!zfs_is_mounted(zhp, NULL)) {
7045 (void) fprintf(stderr, gettext("cannot "
7046 "unmount '%s': not currently "
7047 "mounted\n"),
7048 zfs_get_name(zhp));
7049 ret = 1;
7050 } else if (zfs_unmountall(zhp, flags) != 0) {
7051 ret = 1;
7052 }
7053 break;
7054 }
7055
7056 zfs_close(zhp);
7057 }
7058
7059 return (ret);
7060 }
7061
7062 /*
7063 * zfs unmount -a
7064 * zfs unmount filesystem
7065 *
7066 * Unmount all filesystems, or a specific ZFS filesystem.
7067 */
7068 static int
7069 zfs_do_unmount(int argc, char **argv)
7070 {
7071 return (unshare_unmount(OP_MOUNT, argc, argv));
7072 }
7073
7074 /*
7075 * zfs unshare -a
7076 * zfs unshare filesystem
7077 *
7078 * Unshare all filesystems, or a specific ZFS filesystem.
7079 */
7080 static int
7081 zfs_do_unshare(int argc, char **argv)
7082 {
7083 return (unshare_unmount(OP_SHARE, argc, argv));
7084 }
7085
7086 static int
7087 disable_command_idx(char *command)
7088 {
7089 for (int i = 0; i < NCOMMAND; i++) {
7090 if (command_table[i].name == NULL)
7091 continue;
7092
7093 if (strcmp(command, command_table[i].name) == 0) {
7094 command_table[i].name = NULL;
7095 return (0);
7096 }
7097 }
7098 return (1);
7099 }
7100
7101 static int
7102 find_command_idx(char *command, int *idx)
7103 {
7104 int i;
7105
7106 for (i = 0; i < NCOMMAND; i++) {
7107 if (command_table[i].name == NULL)
7108 continue;
7109
7110 if (strcmp(command, command_table[i].name) == 0) {
7111 *idx = i;
7112 return (0);
7113 }
7114 }
7115 return (1);
7116 }
7117
7118 static int
7119 zfs_do_diff(int argc, char **argv)
7120 {
7121 zfs_handle_t *zhp;
7122 int flags = 0;
7123 char *tosnap = NULL;
7124 char *fromsnap = NULL;
7125 char *atp, *copy;
7126 int err = 0;
7127 int c;
7128
7129 while ((c = getopt(argc, argv, "FHt")) != -1) {
7130 switch (c) {
7131 case 'F':
7132 flags |= ZFS_DIFF_CLASSIFY;
7133 break;
7134 case 'H':
7135 flags |= ZFS_DIFF_PARSEABLE;
7136 break;
7137 case 't':
7138 flags |= ZFS_DIFF_TIMESTAMP;
7139 break;
7140 default:
7141 (void) fprintf(stderr,
7142 gettext("invalid option '%c'\n"), optopt);
7143 usage(B_FALSE);
7144 }
7145 }
7146
7147 argc -= optind;
7148 argv += optind;
7149
7150 if (argc < 1) {
7151 (void) fprintf(stderr,
7152 gettext("must provide at least one snapshot name\n"));
7153 usage(B_FALSE);
7154 }
7155
7156 if (argc > 2) {
7157 (void) fprintf(stderr, gettext("too many arguments\n"));
7158 usage(B_FALSE);
7159 }
7160
7161 fromsnap = argv[0];
7162 tosnap = (argc == 2) ? argv[1] : NULL;
7163
7164 copy = NULL;
7165 if (*fromsnap != '@')
7166 copy = strdup(fromsnap);
7167 else if (tosnap)
7168 copy = strdup(tosnap);
7169 if (copy == NULL)
7170 usage(B_FALSE);
7171
7172 if ((atp = strchr(copy, '@')) != NULL)
7173 *atp = '\0';
7174
7175 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) {
7176 free(copy);
7177 return (1);
7178 }
7179 free(copy);
7180
7181 /*
7182 * Ignore SIGPIPE so that the library can give us
7183 * information on any failure
7184 */
7185 (void) sigignore(SIGPIPE);
7186
7187 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
7188
7189 zfs_close(zhp);
7190
7191 return (err != 0);
7192 }
7193
7194
7195 /*
7196 * zfs remap <filesystem | volume>
7197 *
7198 * N.B. The remap command has been disabled and may be removed in the future.
7199 *
7200 * Remap the indirect blocks in the given filesystem or volume so that they no
7201 * longer reference blocks on previously removed vdevs and we can eventually
7202 * shrink the size of the indirect mapping objects for the previously removed
7203 * vdevs. Note that remapping all blocks might not be possible and that
7204 * references from snapshots will still exist and cannot be remapped.
7205 *
7206 * This functionality is no longer particularly useful now that the removal
7207 * code can map large chunks. Furthermore, explaining what this command
7208 * does and why it may be useful requires a detailed understanding of the
7209 * internals of device removal. These are details users should not be
7210 * bothered with. If required, the remap command can be re-enabled by
7211 * setting the ZFS_REMAP_ENABLED environment variable.
7212 *
7213 * > ZFS_REMAP_ENABLED=yes zfs remap <filesystem | volume>
7214 */
7215 static int
7216 zfs_do_remap(int argc, char **argv)
7217 {
7218 const char *fsname;
7219 int err = 0;
7220 int c;
7221
7222 /* check options */
7223 while ((c = getopt(argc, argv, "")) != -1) {
7224 switch (c) {
7225 case '?':
7226 (void) fprintf(stderr,
7227 gettext("invalid option '%c'\n"), optopt);
7228 usage(B_FALSE);
7229 }
7230 }
7231
7232 if (argc != 2) {
7233 (void) fprintf(stderr, gettext("wrong number of arguments\n"));
7234 usage(B_FALSE);
7235 }
7236
7237 fsname = argv[1];
7238 err = zfs_remap_indirects(g_zfs, fsname);
7239
7240 return (err);
7241 }
7242
7243 /*
7244 * zfs bookmark <fs@snap> <fs#bmark>
7245 *
7246 * Creates a bookmark with the given name from the given snapshot.
7247 */
7248 static int
7249 zfs_do_bookmark(int argc, char **argv)
7250 {
7251 char snapname[ZFS_MAX_DATASET_NAME_LEN];
7252 char bookname[ZFS_MAX_DATASET_NAME_LEN];
7253 zfs_handle_t *zhp;
7254 nvlist_t *nvl;
7255 int ret = 0;
7256 int c;
7257
7258 /* check options */
7259 while ((c = getopt(argc, argv, "")) != -1) {
7260 switch (c) {
7261 case '?':
7262 (void) fprintf(stderr,
7263 gettext("invalid option '%c'\n"), optopt);
7264 goto usage;
7265 }
7266 }
7267
7268 argc -= optind;
7269 argv += optind;
7270
7271 /* check number of arguments */
7272 if (argc < 1) {
7273 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
7274 goto usage;
7275 }
7276 if (argc < 2) {
7277 (void) fprintf(stderr, gettext("missing bookmark argument\n"));
7278 goto usage;
7279 }
7280
7281 if (strchr(argv[0], '@') == NULL) {
7282 (void) fprintf(stderr,
7283 gettext("invalid snapshot name '%s': "
7284 "must contain a '@'\n"), argv[0]);
7285 goto usage;
7286 }
7287 if (strchr(argv[1], '#') == NULL) {
7288 (void) fprintf(stderr,
7289 gettext("invalid bookmark name '%s': "
7290 "must contain a '#'\n"), argv[1]);
7291 goto usage;
7292 }
7293
7294 if (argv[0][0] == '@') {
7295 /*
7296 * Snapshot name begins with @.
7297 * Default to same fs as bookmark.
7298 */
7299 (void) strlcpy(snapname, argv[1], sizeof (snapname));
7300 *strchr(snapname, '#') = '\0';
7301 (void) strlcat(snapname, argv[0], sizeof (snapname));
7302 } else {
7303 (void) strlcpy(snapname, argv[0], sizeof (snapname));
7304 }
7305 if (argv[1][0] == '#') {
7306 /*
7307 * Bookmark name begins with #.
7308 * Default to same fs as snapshot.
7309 */
7310 (void) strlcpy(bookname, argv[0], sizeof (bookname));
7311 *strchr(bookname, '@') = '\0';
7312 (void) strlcat(bookname, argv[1], sizeof (bookname));
7313 } else {
7314 (void) strlcpy(bookname, argv[1], sizeof (bookname));
7315 }
7316
7317 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT);
7318 if (zhp == NULL)
7319 goto usage;
7320 zfs_close(zhp);
7321
7322
7323 nvl = fnvlist_alloc();
7324 fnvlist_add_string(nvl, bookname, snapname);
7325 ret = lzc_bookmark(nvl, NULL);
7326 fnvlist_free(nvl);
7327
7328 if (ret != 0) {
7329 const char *err_msg = NULL;
7330 char errbuf[1024];
7331
7332 (void) snprintf(errbuf, sizeof (errbuf),
7333 dgettext(TEXT_DOMAIN,
7334 "cannot create bookmark '%s'"), bookname);
7335
7336 switch (ret) {
7337 case EXDEV:
7338 err_msg = "bookmark is in a different pool";
7339 break;
7340 case EEXIST:
7341 err_msg = "bookmark exists";
7342 break;
7343 case EINVAL:
7344 err_msg = "invalid argument";
7345 break;
7346 case ENOTSUP:
7347 err_msg = "bookmark feature not enabled";
7348 break;
7349 case ENOSPC:
7350 err_msg = "out of space";
7351 break;
7352 case ENOENT:
7353 err_msg = "dataset does not exist";
7354 break;
7355 default:
7356 (void) zfs_standard_error(g_zfs, ret, errbuf);
7357 break;
7358 }
7359 if (err_msg != NULL) {
7360 (void) fprintf(stderr, "%s: %s\n", errbuf,
7361 dgettext(TEXT_DOMAIN, err_msg));
7362 }
7363 }
7364
7365 return (ret != 0);
7366
7367 usage:
7368 usage(B_FALSE);
7369 return (-1);
7370 }
7371
7372 static int
7373 zfs_do_channel_program(int argc, char **argv)
7374 {
7375 int ret, fd, c;
7376 char *progbuf, *filename, *poolname;
7377 size_t progsize, progread;
7378 nvlist_t *outnvl = NULL;
7379 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT;
7380 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT;
7381 boolean_t sync_flag = B_TRUE, json_output = B_FALSE;
7382 zpool_handle_t *zhp;
7383
7384 /* check options */
7385 while ((c = getopt(argc, argv, "nt:m:j")) != -1) {
7386 switch (c) {
7387 case 't':
7388 case 'm': {
7389 uint64_t arg;
7390 char *endp;
7391
7392 errno = 0;
7393 arg = strtoull(optarg, &endp, 0);
7394 if (errno != 0 || *endp != '\0') {
7395 (void) fprintf(stderr, gettext(
7396 "invalid argument "
7397 "'%s': expected integer\n"), optarg);
7398 goto usage;
7399 }
7400
7401 if (c == 't') {
7402 instrlimit = arg;
7403 } else {
7404 ASSERT3U(c, ==, 'm');
7405 memlimit = arg;
7406 }
7407 break;
7408 }
7409 case 'n': {
7410 sync_flag = B_FALSE;
7411 break;
7412 }
7413 case 'j': {
7414 json_output = B_TRUE;
7415 break;
7416 }
7417 case '?':
7418 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
7419 optopt);
7420 goto usage;
7421 }
7422 }
7423
7424 argc -= optind;
7425 argv += optind;
7426
7427 if (argc < 2) {
7428 (void) fprintf(stderr,
7429 gettext("invalid number of arguments\n"));
7430 goto usage;
7431 }
7432
7433 poolname = argv[0];
7434 filename = argv[1];
7435 if (strcmp(filename, "-") == 0) {
7436 fd = 0;
7437 filename = "standard input";
7438 } else if ((fd = open(filename, O_RDONLY)) < 0) {
7439 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"),
7440 filename, strerror(errno));
7441 return (1);
7442 }
7443
7444 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
7445 (void) fprintf(stderr, gettext("cannot open pool '%s'"),
7446 poolname);
7447 if (fd != 0)
7448 (void) close(fd);
7449 return (1);
7450 }
7451 zpool_close(zhp);
7452
7453 /*
7454 * Read in the channel program, expanding the program buffer as
7455 * necessary.
7456 */
7457 progread = 0;
7458 progsize = 1024;
7459 progbuf = safe_malloc(progsize);
7460 do {
7461 ret = read(fd, progbuf + progread, progsize - progread);
7462 progread += ret;
7463 if (progread == progsize && ret > 0) {
7464 progsize *= 2;
7465 progbuf = safe_realloc(progbuf, progsize);
7466 }
7467 } while (ret > 0);
7468
7469 if (fd != 0)
7470 (void) close(fd);
7471 if (ret < 0) {
7472 free(progbuf);
7473 (void) fprintf(stderr,
7474 gettext("cannot read '%s': %s\n"),
7475 filename, strerror(errno));
7476 return (1);
7477 }
7478 progbuf[progread] = '\0';
7479
7480 /*
7481 * Any remaining arguments are passed as arguments to the lua script as
7482 * a string array:
7483 * {
7484 * "argv" -> [ "arg 1", ... "arg n" ],
7485 * }
7486 */
7487 nvlist_t *argnvl = fnvlist_alloc();
7488 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2);
7489
7490 if (sync_flag) {
7491 ret = lzc_channel_program(poolname, progbuf,
7492 instrlimit, memlimit, argnvl, &outnvl);
7493 } else {
7494 ret = lzc_channel_program_nosync(poolname, progbuf,
7495 instrlimit, memlimit, argnvl, &outnvl);
7496 }
7497
7498 if (ret != 0) {
7499 /*
7500 * On error, report the error message handed back by lua if one
7501 * exists. Otherwise, generate an appropriate error message,
7502 * falling back on strerror() for an unexpected return code.
7503 */
7504 char *errstring = NULL;
7505 const char *msg = gettext("Channel program execution failed");
7506 uint64_t instructions = 0;
7507 if (outnvl != NULL && nvlist_exists(outnvl, ZCP_RET_ERROR)) {
7508 (void) nvlist_lookup_string(outnvl,
7509 ZCP_RET_ERROR, &errstring);
7510 if (errstring == NULL)
7511 errstring = strerror(ret);
7512 if (ret == ETIME) {
7513 (void) nvlist_lookup_uint64(outnvl,
7514 ZCP_ARG_INSTRLIMIT, &instructions);
7515 }
7516 } else {
7517 switch (ret) {
7518 case EINVAL:
7519 errstring =
7520 "Invalid instruction or memory limit.";
7521 break;
7522 case ENOMEM:
7523 errstring = "Return value too large.";
7524 break;
7525 case ENOSPC:
7526 errstring = "Memory limit exhausted.";
7527 break;
7528 case ETIME:
7529 errstring = "Timed out.";
7530 break;
7531 case EPERM:
7532 errstring = "Permission denied. Channel "
7533 "programs must be run as root.";
7534 break;
7535 default:
7536 (void) zfs_standard_error(g_zfs, ret, msg);
7537 }
7538 }
7539 if (errstring != NULL)
7540 (void) fprintf(stderr, "%s:\n%s\n", msg, errstring);
7541
7542 if (ret == ETIME && instructions != 0)
7543 (void) fprintf(stderr,
7544 gettext("%llu Lua instructions\n"),
7545 (u_longlong_t)instructions);
7546 } else {
7547 if (json_output) {
7548 (void) nvlist_print_json(stdout, outnvl);
7549 } else if (nvlist_empty(outnvl)) {
7550 (void) fprintf(stdout, gettext("Channel program fully "
7551 "executed and did not produce output.\n"));
7552 } else {
7553 (void) fprintf(stdout, gettext("Channel program fully "
7554 "executed and produced output:\n"));
7555 dump_nvlist(outnvl, 4);
7556 }
7557 }
7558
7559 free(progbuf);
7560 fnvlist_free(outnvl);
7561 fnvlist_free(argnvl);
7562 return (ret != 0);
7563
7564 usage:
7565 usage(B_FALSE);
7566 return (-1);
7567 }
7568
7569
7570 typedef struct loadkey_cbdata {
7571 boolean_t cb_loadkey;
7572 boolean_t cb_recursive;
7573 boolean_t cb_noop;
7574 char *cb_keylocation;
7575 uint64_t cb_numfailed;
7576 uint64_t cb_numattempted;
7577 } loadkey_cbdata_t;
7578
7579 static int
7580 load_key_callback(zfs_handle_t *zhp, void *data)
7581 {
7582 int ret;
7583 boolean_t is_encroot;
7584 loadkey_cbdata_t *cb = data;
7585 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
7586
7587 /*
7588 * If we are working recursively, we want to skip loading / unloading
7589 * keys for non-encryption roots and datasets whose keys are already
7590 * in the desired end-state.
7591 */
7592 if (cb->cb_recursive) {
7593 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL);
7594 if (ret != 0)
7595 return (ret);
7596 if (!is_encroot)
7597 return (0);
7598
7599 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) ||
7600 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE))
7601 return (0);
7602 }
7603
7604 cb->cb_numattempted++;
7605
7606 if (cb->cb_loadkey)
7607 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation);
7608 else
7609 ret = zfs_crypto_unload_key(zhp);
7610
7611 if (ret != 0) {
7612 cb->cb_numfailed++;
7613 return (ret);
7614 }
7615
7616 return (0);
7617 }
7618
7619 static int
7620 load_unload_keys(int argc, char **argv, boolean_t loadkey)
7621 {
7622 int c, ret = 0, flags = 0;
7623 boolean_t do_all = B_FALSE;
7624 loadkey_cbdata_t cb = { 0 };
7625
7626 cb.cb_loadkey = loadkey;
7627
7628 while ((c = getopt(argc, argv, "anrL:")) != -1) {
7629 /* noop and alternate keylocations only apply to zfs load-key */
7630 if (loadkey) {
7631 switch (c) {
7632 case 'n':
7633 cb.cb_noop = B_TRUE;
7634 continue;
7635 case 'L':
7636 cb.cb_keylocation = optarg;
7637 continue;
7638 default:
7639 break;
7640 }
7641 }
7642
7643 switch (c) {
7644 case 'a':
7645 do_all = B_TRUE;
7646 cb.cb_recursive = B_TRUE;
7647 break;
7648 case 'r':
7649 flags |= ZFS_ITER_RECURSE;
7650 cb.cb_recursive = B_TRUE;
7651 break;
7652 default:
7653 (void) fprintf(stderr,
7654 gettext("invalid option '%c'\n"), optopt);
7655 usage(B_FALSE);
7656 }
7657 }
7658
7659 argc -= optind;
7660 argv += optind;
7661
7662 if (!do_all && argc == 0) {
7663 (void) fprintf(stderr,
7664 gettext("Missing dataset argument or -a option\n"));
7665 usage(B_FALSE);
7666 }
7667
7668 if (do_all && argc != 0) {
7669 (void) fprintf(stderr,
7670 gettext("Cannot specify dataset with -a option\n"));
7671 usage(B_FALSE);
7672 }
7673
7674 if (cb.cb_recursive && cb.cb_keylocation != NULL &&
7675 strcmp(cb.cb_keylocation, "prompt") != 0) {
7676 (void) fprintf(stderr, gettext("alternate keylocation may only "
7677 "be 'prompt' with -r or -a\n"));
7678 usage(B_FALSE);
7679 }
7680
7681 ret = zfs_for_each(argc, argv, flags,
7682 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0,
7683 load_key_callback, &cb);
7684
7685 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) {
7686 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"),
7687 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed),
7688 (u_longlong_t)cb.cb_numattempted,
7689 loadkey ? (cb.cb_noop ? "verified" : "loaded") :
7690 "unloaded");
7691 }
7692
7693 if (cb.cb_numfailed != 0)
7694 ret = -1;
7695
7696 return (ret);
7697 }
7698
7699 static int
7700 zfs_do_load_key(int argc, char **argv)
7701 {
7702 return (load_unload_keys(argc, argv, B_TRUE));
7703 }
7704
7705
7706 static int
7707 zfs_do_unload_key(int argc, char **argv)
7708 {
7709 return (load_unload_keys(argc, argv, B_FALSE));
7710 }
7711
7712 static int
7713 zfs_do_change_key(int argc, char **argv)
7714 {
7715 int c, ret;
7716 uint64_t keystatus;
7717 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE;
7718 zfs_handle_t *zhp = NULL;
7719 nvlist_t *props = fnvlist_alloc();
7720
7721 while ((c = getopt(argc, argv, "lio:")) != -1) {
7722 switch (c) {
7723 case 'l':
7724 loadkey = B_TRUE;
7725 break;
7726 case 'i':
7727 inheritkey = B_TRUE;
7728 break;
7729 case 'o':
7730 if (!parseprop(props, optarg)) {
7731 nvlist_free(props);
7732 return (1);
7733 }
7734 break;
7735 default:
7736 (void) fprintf(stderr,
7737 gettext("invalid option '%c'\n"), optopt);
7738 usage(B_FALSE);
7739 }
7740 }
7741
7742 if (inheritkey && !nvlist_empty(props)) {
7743 (void) fprintf(stderr,
7744 gettext("Properties not allowed for inheriting\n"));
7745 usage(B_FALSE);
7746 }
7747
7748 argc -= optind;
7749 argv += optind;
7750
7751 if (argc < 1) {
7752 (void) fprintf(stderr, gettext("Missing dataset argument\n"));
7753 usage(B_FALSE);
7754 }
7755
7756 if (argc > 1) {
7757 (void) fprintf(stderr, gettext("Too many arguments\n"));
7758 usage(B_FALSE);
7759 }
7760
7761 zhp = zfs_open(g_zfs, argv[argc - 1],
7762 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
7763 if (zhp == NULL)
7764 usage(B_FALSE);
7765
7766 if (loadkey) {
7767 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
7768 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) {
7769 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL);
7770 if (ret != 0) {
7771 nvlist_free(props);
7772 zfs_close(zhp);
7773 return (-1);
7774 }
7775 }
7776
7777 /* refresh the properties so the new keystatus is visible */
7778 zfs_refresh_properties(zhp);
7779 }
7780
7781 ret = zfs_crypto_rewrap(zhp, props, inheritkey);
7782 if (ret != 0) {
7783 nvlist_free(props);
7784 zfs_close(zhp);
7785 return (-1);
7786 }
7787
7788 nvlist_free(props);
7789 zfs_close(zhp);
7790 return (0);
7791 }
7792
7793 /*
7794 * 1) zfs project [-d|-r] <file|directory ...>
7795 * List project ID and inherit flag of file(s) or directories.
7796 * -d: List the directory itself, not its children.
7797 * -r: List subdirectories recursively.
7798 *
7799 * 2) zfs project -C [-k] [-r] <file|directory ...>
7800 * Clear project inherit flag and/or ID on the file(s) or directories.
7801 * -k: Keep the project ID unchanged. If not specified, the project ID
7802 * will be reset as zero.
7803 * -r: Clear on subdirectories recursively.
7804 *
7805 * 3) zfs project -c [-0] [-d|-r] [-p id] <file|directory ...>
7806 * Check project ID and inherit flag on the file(s) or directories,
7807 * report the outliers.
7808 * -0: Print file name followed by a NUL instead of newline.
7809 * -d: Check the directory itself, not its children.
7810 * -p: Specify the referenced ID for comparing with the target file(s)
7811 * or directories' project IDs. If not specified, the target (top)
7812 * directory's project ID will be used as the referenced one.
7813 * -r: Check subdirectories recursively.
7814 *
7815 * 4) zfs project [-p id] [-r] [-s] <file|directory ...>
7816 * Set project ID and/or inherit flag on the file(s) or directories.
7817 * -p: Set the project ID as the given id.
7818 * -r: Set on subdirectorie recursively. If not specify "-p" option,
7819 * it will use top-level directory's project ID as the given id,
7820 * then set both project ID and inherit flag on all descendants
7821 * of the top-level directory.
7822 * -s: Set project inherit flag.
7823 */
7824 static int
7825 zfs_do_project(int argc, char **argv)
7826 {
7827 zfs_project_control_t zpc = {
7828 .zpc_expected_projid = ZFS_INVALID_PROJID,
7829 .zpc_op = ZFS_PROJECT_OP_DEFAULT,
7830 .zpc_dironly = B_FALSE,
7831 .zpc_keep_projid = B_FALSE,
7832 .zpc_newline = B_TRUE,
7833 .zpc_recursive = B_FALSE,
7834 .zpc_set_flag = B_FALSE,
7835 };
7836 int ret = 0, c;
7837
7838 if (argc < 2)
7839 usage(B_FALSE);
7840
7841 while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) {
7842 switch (c) {
7843 case '0':
7844 zpc.zpc_newline = B_FALSE;
7845 break;
7846 case 'C':
7847 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
7848 (void) fprintf(stderr, gettext("cannot "
7849 "specify '-C' '-c' '-s' together\n"));
7850 usage(B_FALSE);
7851 }
7852
7853 zpc.zpc_op = ZFS_PROJECT_OP_CLEAR;
7854 break;
7855 case 'c':
7856 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
7857 (void) fprintf(stderr, gettext("cannot "
7858 "specify '-C' '-c' '-s' together\n"));
7859 usage(B_FALSE);
7860 }
7861
7862 zpc.zpc_op = ZFS_PROJECT_OP_CHECK;
7863 break;
7864 case 'd':
7865 zpc.zpc_dironly = B_TRUE;
7866 /* overwrite "-r" option */
7867 zpc.zpc_recursive = B_FALSE;
7868 break;
7869 case 'k':
7870 zpc.zpc_keep_projid = B_TRUE;
7871 break;
7872 case 'p': {
7873 char *endptr;
7874
7875 errno = 0;
7876 zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0);
7877 if (errno != 0 || *endptr != '\0') {
7878 (void) fprintf(stderr,
7879 gettext("project ID must be less than "
7880 "%u\n"), UINT32_MAX);
7881 usage(B_FALSE);
7882 }
7883 if (zpc.zpc_expected_projid >= UINT32_MAX) {
7884 (void) fprintf(stderr,
7885 gettext("invalid project ID\n"));
7886 usage(B_FALSE);
7887 }
7888 break;
7889 }
7890 case 'r':
7891 zpc.zpc_recursive = B_TRUE;
7892 /* overwrite "-d" option */
7893 zpc.zpc_dironly = B_FALSE;
7894 break;
7895 case 's':
7896 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) {
7897 (void) fprintf(stderr, gettext("cannot "
7898 "specify '-C' '-c' '-s' together\n"));
7899 usage(B_FALSE);
7900 }
7901
7902 zpc.zpc_set_flag = B_TRUE;
7903 zpc.zpc_op = ZFS_PROJECT_OP_SET;
7904 break;
7905 default:
7906 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
7907 optopt);
7908 usage(B_FALSE);
7909 }
7910 }
7911
7912 if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) {
7913 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID)
7914 zpc.zpc_op = ZFS_PROJECT_OP_SET;
7915 else
7916 zpc.zpc_op = ZFS_PROJECT_OP_LIST;
7917 }
7918
7919 switch (zpc.zpc_op) {
7920 case ZFS_PROJECT_OP_LIST:
7921 if (zpc.zpc_keep_projid) {
7922 (void) fprintf(stderr,
7923 gettext("'-k' is only valid together with '-C'\n"));
7924 usage(B_FALSE);
7925 }
7926 if (!zpc.zpc_newline) {
7927 (void) fprintf(stderr,
7928 gettext("'-0' is only valid together with '-c'\n"));
7929 usage(B_FALSE);
7930 }
7931 break;
7932 case ZFS_PROJECT_OP_CHECK:
7933 if (zpc.zpc_keep_projid) {
7934 (void) fprintf(stderr,
7935 gettext("'-k' is only valid together with '-C'\n"));
7936 usage(B_FALSE);
7937 }
7938 break;
7939 case ZFS_PROJECT_OP_CLEAR:
7940 if (zpc.zpc_dironly) {
7941 (void) fprintf(stderr,
7942 gettext("'-d' is useless together with '-C'\n"));
7943 usage(B_FALSE);
7944 }
7945 if (!zpc.zpc_newline) {
7946 (void) fprintf(stderr,
7947 gettext("'-0' is only valid together with '-c'\n"));
7948 usage(B_FALSE);
7949 }
7950 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) {
7951 (void) fprintf(stderr,
7952 gettext("'-p' is useless together with '-C'\n"));
7953 usage(B_FALSE);
7954 }
7955 break;
7956 case ZFS_PROJECT_OP_SET:
7957 if (zpc.zpc_dironly) {
7958 (void) fprintf(stderr,
7959 gettext("'-d' is useless for set project ID and/or "
7960 "inherit flag\n"));
7961 usage(B_FALSE);
7962 }
7963 if (zpc.zpc_keep_projid) {
7964 (void) fprintf(stderr,
7965 gettext("'-k' is only valid together with '-C'\n"));
7966 usage(B_FALSE);
7967 }
7968 if (!zpc.zpc_newline) {
7969 (void) fprintf(stderr,
7970 gettext("'-0' is only valid together with '-c'\n"));
7971 usage(B_FALSE);
7972 }
7973 break;
7974 default:
7975 ASSERT(0);
7976 break;
7977 }
7978
7979 argv += optind;
7980 argc -= optind;
7981 if (argc == 0) {
7982 (void) fprintf(stderr,
7983 gettext("missing file or directory target(s)\n"));
7984 usage(B_FALSE);
7985 }
7986
7987 for (int i = 0; i < argc; i++) {
7988 int err;
7989
7990 err = zfs_project_handle(argv[i], &zpc);
7991 if (err && !ret)
7992 ret = err;
7993 }
7994
7995 return (ret);
7996 }
7997
7998 int
7999 main(int argc, char **argv)
8000 {
8001 int ret = 0;
8002 int i = 0;
8003 char *cmdname;
8004 char **newargv;
8005
8006 (void) setlocale(LC_ALL, "");
8007 (void) textdomain(TEXT_DOMAIN);
8008
8009 opterr = 0;
8010
8011 /*
8012 * Make sure the user has specified some command.
8013 */
8014 if (argc < 2) {
8015 (void) fprintf(stderr, gettext("missing command\n"));
8016 usage(B_FALSE);
8017 }
8018
8019 cmdname = argv[1];
8020
8021 /*
8022 * The 'umount' command is an alias for 'unmount'
8023 */
8024 if (strcmp(cmdname, "umount") == 0)
8025 cmdname = "unmount";
8026
8027 /*
8028 * The 'recv' command is an alias for 'receive'
8029 */
8030 if (strcmp(cmdname, "recv") == 0)
8031 cmdname = "receive";
8032
8033 /*
8034 * The 'snap' command is an alias for 'snapshot'
8035 */
8036 if (strcmp(cmdname, "snap") == 0)
8037 cmdname = "snapshot";
8038
8039 /*
8040 * The 'remap' command has been disabled and may be removed in the
8041 * future. See the comment above zfs_do_remap() for details.
8042 */
8043 if (!libzfs_envvar_is_set("ZFS_REMAP_ENABLED"))
8044 disable_command_idx("remap");
8045
8046 /*
8047 * Special case '-?'
8048 */
8049 if ((strcmp(cmdname, "-?") == 0) ||
8050 (strcmp(cmdname, "--help") == 0))
8051 usage(B_TRUE);
8052
8053 if ((g_zfs = libzfs_init()) == NULL) {
8054 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
8055 return (1);
8056 }
8057
8058 mnttab_file = g_zfs->libzfs_mnttab;
8059
8060 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
8061
8062 libzfs_print_on_error(g_zfs, B_TRUE);
8063
8064 /*
8065 * Many commands modify input strings for string parsing reasons.
8066 * We create a copy to protect the original argv.
8067 */
8068 newargv = malloc((argc + 1) * sizeof (newargv[0]));
8069 for (i = 0; i < argc; i++)
8070 newargv[i] = strdup(argv[i]);
8071 newargv[argc] = NULL;
8072
8073 /*
8074 * Run the appropriate command.
8075 */
8076 libzfs_mnttab_cache(g_zfs, B_TRUE);
8077 if (find_command_idx(cmdname, &i) == 0) {
8078 current_command = &command_table[i];
8079 ret = command_table[i].func(argc - 1, newargv + 1);
8080 } else if (strchr(cmdname, '=') != NULL) {
8081 verify(find_command_idx("set", &i) == 0);
8082 current_command = &command_table[i];
8083 ret = command_table[i].func(argc, newargv);
8084 } else {
8085 (void) fprintf(stderr, gettext("unrecognized "
8086 "command '%s'\n"), cmdname);
8087 usage(B_FALSE);
8088 ret = 1;
8089 }
8090
8091 for (i = 0; i < argc; i++)
8092 free(newargv[i]);
8093 free(newargv);
8094
8095 if (ret == 0 && log_history)
8096 (void) zpool_log_history(g_zfs, history_str);
8097
8098 libzfs_fini(g_zfs);
8099
8100 /*
8101 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
8102 * for the purposes of running ::findleaks.
8103 */
8104 if (getenv("ZFS_ABORT") != NULL) {
8105 (void) printf("dumping core by request\n");
8106 abort();
8107 }
8108
8109 return (ret);
8110 }
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