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Illumos #1977: zfs allow arguments not parsed correctly after pyzfs removal
[mirror_zfs.git] / cmd / zfs / zfs_main.c
CommitLineData
34dc7c2f
BB		 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/*
428870ff 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
79e72243 24 * Copyright 2012 Nexenta Systems, Inc. All rights reserved.
330d06f9 25 * Copyright (c) 2011 by Delphix. All rights reserved.
34dc7c2f
BB		 26 */
27
34dc7c2f
BB		 28#include <assert.h>
29#include <ctype.h>
30#include <errno.h>
31#include <libgen.h>
32#include <libintl.h>
33#include <libuutil.h>
34#include <libnvpair.h>
35#include <locale.h>
36#include <stddef.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <strings.h>
40#include <unistd.h>
41#include <fcntl.h>
42#include <zone.h>
9babb374
BB		 43#include <grp.h>
44#include <pwd.h>
572e2857 45#include <signal.h>
0b7936d5 46#include <sys/list.h>
34dc7c2f
BB		 47#include <sys/mkdev.h>
48#include <sys/mntent.h>
49#include <sys/mnttab.h>
50#include <sys/mount.h>
51#include <sys/stat.h>
9babb374 52#include <sys/fs/zfs.h>
428870ff
BB		 53#include <sys/types.h>
54#include <time.h>
34dc7c2f
BB		 55
56#include <libzfs.h>
0b7936d5
AS		 57#include <zfs_prop.h>
58#include <zfs_deleg.h>
34dc7c2f 59#include <libuutil.h>
0b7936d5
AS		 60#ifdef HAVE_IDMAP
61#include <aclutils.h>
62#include <directory.h>
63#endif /* HAVE_IDMAP */
34dc7c2f
BB		 64
65#include "zfs_iter.h"
66#include "zfs_util.h"
428870ff 67#include "zfs_comutil.h"
34dc7c2f
BB		 68
69libzfs_handle_t *g_zfs;
70
71static FILE *mnttab_file;
72static char history_str[HIS_MAX_RECORD_LEN];
73
74static int zfs_do_clone(int argc, char **argv);
75static int zfs_do_create(int argc, char **argv);
76static int zfs_do_destroy(int argc, char **argv);
77static int zfs_do_get(int argc, char **argv);
78static int zfs_do_inherit(int argc, char **argv);
79static int zfs_do_list(int argc, char **argv);
80static int zfs_do_mount(int argc, char **argv);
81static int zfs_do_rename(int argc, char **argv);
82static int zfs_do_rollback(int argc, char **argv);
83static int zfs_do_set(int argc, char **argv);
84static int zfs_do_upgrade(int argc, char **argv);
85static int zfs_do_snapshot(int argc, char **argv);
86static int zfs_do_unmount(int argc, char **argv);
87static int zfs_do_share(int argc, char **argv);
88static int zfs_do_unshare(int argc, char **argv);
89static int zfs_do_send(int argc, char **argv);
90static int zfs_do_receive(int argc, char **argv);
91static int zfs_do_promote(int argc, char **argv);
9babb374 92static int zfs_do_userspace(int argc, char **argv);
0b7936d5
AS		 93static int zfs_do_allow(int argc, char **argv);
94static int zfs_do_unallow(int argc, char **argv);
45d1cae3 95static int zfs_do_hold(int argc, char **argv);
0b7936d5 96static int zfs_do_holds(int argc, char **argv);
45d1cae3 97static int zfs_do_release(int argc, char **argv);
572e2857 98static int zfs_do_diff(int argc, char **argv);
34dc7c2f
BB		 99
100/*
b128c09f 101 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
34dc7c2f 102 */
b128c09f
BB		 103
104#ifdef DEBUG
34dc7c2f
BB		 105const char *
106_umem_debug_init(void)
107{
108 return ("default,verbose"); /* $UMEM_DEBUG setting */
109}
110
111const char *
112_umem_logging_init(void)
113{
114 return ("fail,contents"); /* $UMEM_LOGGING setting */
115}
b128c09f 116#endif
34dc7c2f
BB		 117
118typedef enum {
119 HELP_CLONE,
120 HELP_CREATE,
121 HELP_DESTROY,
122 HELP_GET,
123 HELP_INHERIT,
124 HELP_UPGRADE,
125 HELP_LIST,
126 HELP_MOUNT,
127 HELP_PROMOTE,
128 HELP_RECEIVE,
129 HELP_RENAME,
130 HELP_ROLLBACK,
131 HELP_SEND,
132 HELP_SET,
133 HELP_SHARE,
134 HELP_SNAPSHOT,
135 HELP_UNMOUNT,
136 HELP_UNSHARE,
137 HELP_ALLOW,
9babb374
BB		 138 HELP_UNALLOW,
139 HELP_USERSPACE,
45d1cae3
BB		 140 HELP_GROUPSPACE,
141 HELP_HOLD,
142 HELP_HOLDS,
572e2857 143 HELP_RELEASE,
330d06f9 144 HELP_DIFF,
34dc7c2f
BB		 145} zfs_help_t;
146
147typedef struct zfs_command {
148 const char *name;
149 int (*func)(int argc, char **argv);
150 zfs_help_t usage;
151} zfs_command_t;
152
153/*
154 * Master command table. Each ZFS command has a name, associated function, and
155 * usage message. The usage messages need to be internationalized, so we have
156 * to have a function to return the usage message based on a command index.
157 *
158 * These commands are organized according to how they are displayed in the usage
159 * message. An empty command (one with a NULL name) indicates an empty line in
160 * the generic usage message.
161 */
162static zfs_command_t command_table[] = {
163 { "create", zfs_do_create, HELP_CREATE },
164 { "destroy", zfs_do_destroy, HELP_DESTROY },
165 { NULL },
166 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
167 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
168 { "clone", zfs_do_clone, HELP_CLONE },
169 { "promote", zfs_do_promote, HELP_PROMOTE },
170 { "rename", zfs_do_rename, HELP_RENAME },
171 { NULL },
172 { "list", zfs_do_list, HELP_LIST },
173 { NULL },
174 { "set", zfs_do_set, HELP_SET },
428870ff 175 { "get", zfs_do_get, HELP_GET },
34dc7c2f
BB		 176 { "inherit", zfs_do_inherit, HELP_INHERIT },
177 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
9babb374
BB		 178 { "userspace", zfs_do_userspace, HELP_USERSPACE },
179 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
34dc7c2f
BB		 180 { NULL },
181 { "mount", zfs_do_mount, HELP_MOUNT },
182 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
183 { "share", zfs_do_share, HELP_SHARE },
184 { "unshare", zfs_do_unshare, HELP_UNSHARE },
185 { NULL },
186 { "send", zfs_do_send, HELP_SEND },
187 { "receive", zfs_do_receive, HELP_RECEIVE },
188 { NULL },
0b7936d5 189 { "allow", zfs_do_allow, HELP_ALLOW },
34dc7c2f 190 { NULL },
0b7936d5 191 { "unallow", zfs_do_unallow, HELP_UNALLOW },
45d1cae3
BB		 192 { NULL },
193 { "hold", zfs_do_hold, HELP_HOLD },
0b7936d5 194 { "holds", zfs_do_holds, HELP_HOLDS },
45d1cae3 195 { "release", zfs_do_release, HELP_RELEASE },
572e2857 196 { "diff", zfs_do_diff, HELP_DIFF },
34dc7c2f
BB		 197};
198
199#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
200
201zfs_command_t *current_command;
202
203static const char *
204get_usage(zfs_help_t idx)
205{
206 switch (idx) {
207 case HELP_CLONE:
b128c09f
BB		 208 return (gettext("\tclone [-p] [-o property=value] ... "
209 "<snapshot> <filesystem|volume>\n"));
34dc7c2f
BB		 210 case HELP_CREATE:
211 return (gettext("\tcreate [-p] [-o property=value] ... "
212 "<filesystem>\n"
213 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
214 "-V <size> <volume>\n"));
215 case HELP_DESTROY:
330d06f9
MA		 216 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
217 "\tdestroy [-dnpRrv] "
218 "<filesystem|volume>@<snap>[%<snap>][,...]\n"));
34dc7c2f 219 case HELP_GET:
9babb374 220 return (gettext("\tget [-rHp] [-d max] "
428870ff 221 "[-o \"all\" | field[,...]] [-s source[,...]]\n"
34dc7c2f
BB		 222 "\t <\"all\" | property[,...]> "
223 "[filesystem|volume|snapshot] ...\n"));
224 case HELP_INHERIT:
428870ff 225 return (gettext("\tinherit [-rS] <property> "
b128c09f 226 "<filesystem|volume|snapshot> ...\n"));
34dc7c2f
BB		 227 case HELP_UPGRADE:
228 return (gettext("\tupgrade [-v]\n"
229 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
230 case HELP_LIST:
9babb374
BB		 231 return (gettext("\tlist [-rH][-d max] "
232 "[-o property[,...]] [-t type[,...]] [-s property] ...\n"
34dc7c2f 233 "\t [-S property] ... "
cf81b00a 234 "[filesystem|volume|snapshot|snap] ...\n"));
34dc7c2f
BB		 235 case HELP_MOUNT:
236 return (gettext("\tmount\n"
237 "\tmount [-vO] [-o opts] <-a | filesystem>\n"));
238 case HELP_PROMOTE:
239 return (gettext("\tpromote <clone-filesystem>\n"));
240 case HELP_RECEIVE:
428870ff 241 return (gettext("\treceive [-vnFu] <filesystem|volume|"
34dc7c2f 242 "snapshot>\n"
428870ff 243 "\treceive [-vnFu] [-d | -e] <filesystem>\n"));
34dc7c2f
BB		 244 case HELP_RENAME:
245 return (gettext("\trename <filesystem|volume|snapshot> "
246 "<filesystem|volume|snapshot>\n"
247 "\trename -p <filesystem|volume> <filesystem|volume>\n"
248 "\trename -r <snapshot> <snapshot>"));
249 case HELP_ROLLBACK:
250 return (gettext("\trollback [-rRf] <snapshot>\n"));
251 case HELP_SEND:
330d06f9
MA		 252 return (gettext("\tsend [-DnPpRrv] [-[iI] snapshot] "
253 "<snapshot>\n"));
34dc7c2f
BB		 254 case HELP_SET:
255 return (gettext("\tset <property=value> "
b128c09f 256 "<filesystem|volume|snapshot> ...\n"));
34dc7c2f
BB		 257 case HELP_SHARE:
258 return (gettext("\tshare <-a | filesystem>\n"));
259 case HELP_SNAPSHOT:
10b75496 260 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... "
34dc7c2f
BB		 261 "<filesystem@snapname|volume@snapname>\n"));
262 case HELP_UNMOUNT:
263 return (gettext("\tunmount [-f] "
264 "<-a | filesystem|mountpoint>\n"));
265 case HELP_UNSHARE:
45d1cae3 266 return (gettext("\tunshare "
34dc7c2f
BB		 267 "<-a | filesystem|mountpoint>\n"));
268 case HELP_ALLOW:
9babb374
BB		 269 return (gettext("\tallow <filesystem|volume>\n"
270 "\tallow [-ldug] "
34dc7c2f
BB		 271 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
272 "\t <filesystem|volume>\n"
273 "\tallow [-ld] -e <perm|@setname>[,...] "
274 "<filesystem|volume>\n"
275 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
276 "\tallow -s @setname <perm|@setname>[,...] "
277 "<filesystem|volume>\n"));
278 case HELP_UNALLOW:
279 return (gettext("\tunallow [-rldug] "
280 "<\"everyone\"|user|group>[,...]\n"
281 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
282 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
283 "<filesystem|volume>\n"
284 "\tunallow [-r] -c [<perm|@setname>[,...]] "
285 "<filesystem|volume>\n"
286 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
287 "<filesystem|volume>\n"));
9babb374
BB		 288 case HELP_USERSPACE:
289 return (gettext("\tuserspace [-hniHp] [-o field[,...]] "
290 "[-sS field] ... [-t type[,...]]\n"
291 "\t <filesystem|snapshot>\n"));
292 case HELP_GROUPSPACE:
293 return (gettext("\tgroupspace [-hniHpU] [-o field[,...]] "
294 "[-sS field] ... [-t type[,...]]\n"
295 "\t <filesystem|snapshot>\n"));
45d1cae3
BB		 296 case HELP_HOLD:
297 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
298 case HELP_HOLDS:
299 return (gettext("\tholds [-r] <snapshot> ...\n"));
300 case HELP_RELEASE:
301 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
572e2857
BB		 302 case HELP_DIFF:
303 return (gettext("\tdiff [-FHt] <snapshot> "
304 "[snapshot|filesystem]\n"));
34dc7c2f
BB		 305 }
306
307 abort();
308 /* NOTREACHED */
309}
310
428870ff
BB		 311void
312nomem(void)
313{
314 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
315 exit(1);
316}
317
34dc7c2f
BB		 318/*
319 * Utility function to guarantee malloc() success.
320 */
428870ff 321
34dc7c2f
BB		 322void *
323safe_malloc(size_t size)
324{
325 void *data;
326
428870ff
BB		 327 if ((data = calloc(1, size)) == NULL)
328 nomem();
34dc7c2f
BB		 329
330 return (data);
331}
332
428870ff
BB		 333static char *
334safe_strdup(char *str)
335{
336 char *dupstr = strdup(str);
337
338 if (dupstr == NULL)
339 nomem();
340
341 return (dupstr);
342}
343
34dc7c2f
BB		 344/*
345 * Callback routine that will print out information for each of
346 * the properties.
347 */
348static int
349usage_prop_cb(int prop, void *cb)
350{
351 FILE *fp = cb;
352
b128c09f 353 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
34dc7c2f 354
b128c09f
BB		 355 if (zfs_prop_readonly(prop))
356 (void) fprintf(fp, " NO ");
34dc7c2f 357 else
b128c09f 358 (void) fprintf(fp, "YES ");
34dc7c2f
BB		 359
360 if (zfs_prop_inheritable(prop))
361 (void) fprintf(fp, " YES ");
362 else
363 (void) fprintf(fp, " NO ");
364
365 if (zfs_prop_values(prop) == NULL)
366 (void) fprintf(fp, "-\n");
367 else
368 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
369
370 return (ZPROP_CONT);
371}
372
373/*
374 * Display usage message. If we're inside a command, display only the usage for
375 * that command. Otherwise, iterate over the entire command table and display
376 * a complete usage message.
377 */
378static void
379usage(boolean_t requested)
380{
381 int i;
382 boolean_t show_properties = B_FALSE;
34dc7c2f
BB		 383 FILE *fp = requested ? stdout : stderr;
384
385 if (current_command == NULL) {
386
387 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
388 (void) fprintf(fp,
389 gettext("where 'command' is one of the following:\n\n"));
390
391 for (i = 0; i < NCOMMAND; i++) {
392 if (command_table[i].name == NULL)
393 (void) fprintf(fp, "\n");
394 else
395 (void) fprintf(fp, "%s",
396 get_usage(command_table[i].usage));
397 }
398
399 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
400 "pool/[dataset/]*dataset[@name]\n"));
401 } else {
402 (void) fprintf(fp, gettext("usage:\n"));
403 (void) fprintf(fp, "%s", get_usage(current_command->usage));
404 }
405
406 if (current_command != NULL &&
407 (strcmp(current_command->name, "set") == 0 ||
408 strcmp(current_command->name, "get") == 0 ||
409 strcmp(current_command->name, "inherit") == 0 ||
410 strcmp(current_command->name, "list") == 0))
411 show_properties = B_TRUE;
412
34dc7c2f 413 if (show_properties) {
34dc7c2f
BB		 414 (void) fprintf(fp,
415 gettext("\nThe following properties are supported:\n"));
416
417 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
418 "PROPERTY", "EDIT", "INHERIT", "VALUES");
419
420 /* Iterate over all properties */
421 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
422 ZFS_TYPE_DATASET);
423
9babb374
BB		 424 (void) fprintf(fp, "\t%-15s ", "userused@...");
425 (void) fprintf(fp, " NO NO <size>\n");
426 (void) fprintf(fp, "\t%-15s ", "groupused@...");
427 (void) fprintf(fp, " NO NO <size>\n");
428 (void) fprintf(fp, "\t%-15s ", "userquota@...");
429 (void) fprintf(fp, "YES NO <size> | none\n");
430 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
431 (void) fprintf(fp, "YES NO <size> | none\n");
330d06f9
MA		 432 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
433 (void) fprintf(fp, " NO NO <size>\n");
9babb374 434
34dc7c2f
BB		 435 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
436 "with standard units such as K, M, G, etc.\n"));
b128c09f 437 (void) fprintf(fp, gettext("\nUser-defined properties can "
34dc7c2f 438 "be specified by using a name containing a colon (:).\n"));
9babb374
BB		 439 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
440 "properties must be appended with\n"
441 "a user or group specifier of one of these forms:\n"
442 " POSIX name (eg: \"matt\")\n"
443 " POSIX id (eg: \"126829\")\n"
444 " SMB name@domain (eg: \"matt@sun\")\n"
445 " SMB SID (eg: \"S-1-234-567-89\")\n"));
34dc7c2f 446 } else {
34dc7c2f 447 (void) fprintf(fp,
fb5f0bc8
BB		 448 gettext("\nFor the property list, run: %s\n"),
449 "zfs set|get");
34dc7c2f 450 (void) fprintf(fp,
fb5f0bc8
BB		 451 gettext("\nFor the delegated permission list, run: %s\n"),
452 "zfs allow|unallow");
34dc7c2f
BB		 453 }
454
455 /*
456 * See comments at end of main().
457 */
458 if (getenv("ZFS_ABORT") != NULL) {
459 (void) printf("dumping core by request\n");
460 abort();
461 }
462
463 exit(requested ? 0 : 2);
464}
465
b128c09f
BB		 466static int
467parseprop(nvlist_t *props)
468{
469 char *propname = optarg;
470 char *propval, *strval;
471
472 if ((propval = strchr(propname, '=')) == NULL) {
473 (void) fprintf(stderr, gettext("missing "
474 "'=' for -o option\n"));
475 return (-1);
476 }
477 *propval = '\0';
478 propval++;
479 if (nvlist_lookup_string(props, propname, &strval) == 0) {
480 (void) fprintf(stderr, gettext("property '%s' "
481 "specified multiple times\n"), propname);
482 return (-1);
483 }
428870ff
BB		 484 if (nvlist_add_string(props, propname, propval) != 0)
485 nomem();
b128c09f 486 return (0);
b128c09f
BB		 487}
488
9babb374
BB		 489static int
490parse_depth(char *opt, int *flags)
491{
492 char *tmp;
493 int depth;
494
495 depth = (int)strtol(opt, &tmp, 0);
496 if (*tmp) {
497 (void) fprintf(stderr,
498 gettext("%s is not an integer\n"), optarg);
499 usage(B_FALSE);
500 }
501 if (depth < 0) {
502 (void) fprintf(stderr,
503 gettext("Depth can not be negative.\n"));
504 usage(B_FALSE);
505 }
506 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
507 return (depth);
508}
509
428870ff
BB		 510#define PROGRESS_DELAY 2 /* seconds */
511
512static 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";
513static time_t pt_begin;
514static char *pt_header = NULL;
515static boolean_t pt_shown;
516
517static void
518start_progress_timer(void)
519{
520 pt_begin = time(NULL) + PROGRESS_DELAY;
521 pt_shown = B_FALSE;
522}
523
524static void
525set_progress_header(char *header)
526{
527 assert(pt_header == NULL);
528 pt_header = safe_strdup(header);
529 if (pt_shown) {
530 (void) printf("%s: ", header);
531 (void) fflush(stdout);
532 }
533}
534
535static void
536update_progress(char *update)
537{
538 if (!pt_shown && time(NULL) > pt_begin) {
539 int len = strlen(update);
540
541 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
542 pt_reverse);
543 (void) fflush(stdout);
544 pt_shown = B_TRUE;
545 } else if (pt_shown) {
546 int len = strlen(update);
547
548 (void) printf("%s%*.*s", update, len, len, pt_reverse);
549 (void) fflush(stdout);
550 }
551}
552
553static void
554finish_progress(char *done)
555{
556 if (pt_shown) {
557 (void) printf("%s\n", done);
558 (void) fflush(stdout);
559 }
560 free(pt_header);
561 pt_header = NULL;
562}
d603ed6c 563
34dc7c2f 564/*
b128c09f 565 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
34dc7c2f
BB		 566 *
567 * Given an existing dataset, create a writable copy whose initial contents
568 * are the same as the source. The newly created dataset maintains a
569 * dependency on the original; the original cannot be destroyed so long as
570 * the clone exists.
571 *
572 * The '-p' flag creates all the non-existing ancestors of the target first.
573 */
574static int
575zfs_do_clone(int argc, char **argv)
576{
b128c09f 577 zfs_handle_t *zhp = NULL;
34dc7c2f 578 boolean_t parents = B_FALSE;
b128c09f 579 nvlist_t *props;
ad60af8e 580 int ret = 0;
34dc7c2f
BB		 581 int c;
582
428870ff
BB		 583 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
584 nomem();
b128c09f 585
34dc7c2f 586 /* check options */
b128c09f 587 while ((c = getopt(argc, argv, "o:p")) != -1) {
34dc7c2f 588 switch (c) {
b128c09f
BB		 589 case 'o':
590 if (parseprop(props))
591 return (1);
592 break;
34dc7c2f
BB		 593 case 'p':
594 parents = B_TRUE;
595 break;
596 case '?':
597 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
598 optopt);
b128c09f 599 goto usage;
34dc7c2f
BB		 600 }
601 }
602
603 argc -= optind;
604 argv += optind;
605
606 /* check number of arguments */
607 if (argc < 1) {
608 (void) fprintf(stderr, gettext("missing source dataset "
609 "argument\n"));
b128c09f 610 goto usage;
34dc7c2f
BB		 611 }
612 if (argc < 2) {
613 (void) fprintf(stderr, gettext("missing target dataset "
614 "argument\n"));
b128c09f 615 goto usage;
34dc7c2f
BB		 616 }
617 if (argc > 2) {
618 (void) fprintf(stderr, gettext("too many arguments\n"));
b128c09f 619 goto usage;
34dc7c2f
BB		 620 }
621
622 /* open the source dataset */
623 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
624 return (1);
625
626 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
627 ZFS_TYPE_VOLUME)) {
628 /*
629 * Now create the ancestors of the target dataset. If the
630 * target already exists and '-p' option was used we should not
631 * complain.
632 */
633 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
634 ZFS_TYPE_VOLUME))
635 return (0);
636 if (zfs_create_ancestors(g_zfs, argv[1]) != 0)
637 return (1);
638 }
639
640 /* pass to libzfs */
b128c09f 641 ret = zfs_clone(zhp, argv[1], props);
34dc7c2f
BB		 642
643 /* create the mountpoint if necessary */
644 if (ret == 0) {
645 zfs_handle_t *clone;
646
647 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET);
648 if (clone != NULL) {
572e2857
BB		 649 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME)
650 if ((ret = zfs_mount(clone, NULL, 0)) == 0)
651 ret = zfs_share(clone);
34dc7c2f
BB		 652 zfs_close(clone);
653 }
654 }
655
656 zfs_close(zhp);
b128c09f 657 nvlist_free(props);
34dc7c2f 658
b128c09f
BB		 659 return (!!ret);
660
661usage:
662 if (zhp)
663 zfs_close(zhp);
664 nvlist_free(props);
665 usage(B_FALSE);
666 return (-1);
34dc7c2f
BB		 667}
668
669/*
670 * zfs create [-p] [-o prop=value] ... fs
671 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
672 *
673 * Create a new dataset. This command can be used to create filesystems
674 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
675 * For volumes, the user must specify a size to be used.
676 *
677 * The '-s' flag applies only to volumes, and indicates that we should not try
678 * to set the reservation for this volume. By default we set a reservation
679 * equal to the size for any volume. For pools with SPA_VERSION >=
680 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
681 *
682 * The '-p' flag creates all the non-existing ancestors of the target first.
683 */
684static int
685zfs_do_create(int argc, char **argv)
686{
687 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
688 zfs_handle_t *zhp = NULL;
d4ed6673 689 uint64_t volsize = 0;
34dc7c2f
BB		 690 int c;
691 boolean_t noreserve = B_FALSE;
692 boolean_t bflag = B_FALSE;
693 boolean_t parents = B_FALSE;
694 int ret = 1;
b128c09f 695 nvlist_t *props;
34dc7c2f 696 uint64_t intval;
572e2857 697 int canmount = ZFS_CANMOUNT_OFF;
34dc7c2f 698
428870ff
BB		 699 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
700 nomem();
34dc7c2f
BB		 701
702 /* check options */
703 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
704 switch (c) {
705 case 'V':
706 type = ZFS_TYPE_VOLUME;
707 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
708 (void) fprintf(stderr, gettext("bad volume "
709 "size '%s': %s\n"), optarg,
710 libzfs_error_description(g_zfs));
711 goto error;
712 }
713
714 if (nvlist_add_uint64(props,
428870ff
BB		 715 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
716 nomem();
34dc7c2f
BB		 717 volsize = intval;
718 break;
719 case 'p':
720 parents = B_TRUE;
721 break;
722 case 'b':
723 bflag = B_TRUE;
724 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
725 (void) fprintf(stderr, gettext("bad volume "
726 "block size '%s': %s\n"), optarg,
727 libzfs_error_description(g_zfs));
728 goto error;
729 }
730
731 if (nvlist_add_uint64(props,
732 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
428870ff
BB		 733 intval) != 0)
734 nomem();
34dc7c2f
BB		 735 break;
736 case 'o':
b128c09f 737 if (parseprop(props))
34dc7c2f 738 goto error;
34dc7c2f
BB		 739 break;
740 case 's':
741 noreserve = B_TRUE;
742 break;
743 case ':':
744 (void) fprintf(stderr, gettext("missing size "
745 "argument\n"));
746 goto badusage;
747 break;
748 case '?':
749 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
750 optopt);
751 goto badusage;
752 }
753 }
754
755 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
756 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
757 "used when creating a volume\n"));
758 goto badusage;
759 }
760
761 argc -= optind;
762 argv += optind;
763
764 /* check number of arguments */
765 if (argc == 0) {
766 (void) fprintf(stderr, gettext("missing %s argument\n"),
767 zfs_type_to_name(type));
768 goto badusage;
769 }
770 if (argc > 1) {
771 (void) fprintf(stderr, gettext("too many arguments\n"));
772 goto badusage;
773 }
774
775 if (type == ZFS_TYPE_VOLUME && !noreserve) {
776 zpool_handle_t *zpool_handle;
777 uint64_t spa_version;
778 char *p;
779 zfs_prop_t resv_prop;
b128c09f 780 char *strval;
34dc7c2f 781
c65aa5b2 782 if ((p = strchr(argv[0], '/')))
34dc7c2f
BB		 783 *p = '\0';
784 zpool_handle = zpool_open(g_zfs, argv[0]);
785 if (p != NULL)
786 *p = '/';
787 if (zpool_handle == NULL)
788 goto error;
789 spa_version = zpool_get_prop_int(zpool_handle,
790 ZPOOL_PROP_VERSION, NULL);
791 zpool_close(zpool_handle);
792 if (spa_version >= SPA_VERSION_REFRESERVATION)
793 resv_prop = ZFS_PROP_REFRESERVATION;
794 else
795 resv_prop = ZFS_PROP_RESERVATION;
428870ff 796 volsize = zvol_volsize_to_reservation(volsize, props);
34dc7c2f
BB		 797
798 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
799 &strval) != 0) {
800 if (nvlist_add_uint64(props,
801 zfs_prop_to_name(resv_prop), volsize) != 0) {
34dc7c2f 802 nvlist_free(props);
428870ff 803 nomem();
34dc7c2f
BB		 804 }
805 }
806 }
807
808 if (parents && zfs_name_valid(argv[0], type)) {
809 /*
810 * Now create the ancestors of target dataset. If the target
811 * already exists and '-p' option was used we should not
812 * complain.
813 */
814 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
815 ret = 0;
816 goto error;
817 }
818 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
819 goto error;
820 }
821
822 /* pass to libzfs */
823 if (zfs_create(g_zfs, argv[0], type, props) != 0)
824 goto error;
825
826 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
827 goto error;
572e2857
BB		 828
829 ret = 0;
34dc7c2f
BB		 830 /*
831 * if the user doesn't want the dataset automatically mounted,
832 * then skip the mount/share step
833 */
572e2857
BB		 834 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type))
835 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
34dc7c2f
BB		 836
837 /*
838 * Mount and/or share the new filesystem as appropriate. We provide a
839 * verbose error message to let the user know that their filesystem was
840 * in fact created, even if we failed to mount or share it.
841 */
34dc7c2f
BB		 842 if (canmount == ZFS_CANMOUNT_ON) {
843 if (zfs_mount(zhp, NULL, 0) != 0) {
844 (void) fprintf(stderr, gettext("filesystem "
845 "successfully created, but not mounted\n"));
846 ret = 1;
847 } else if (zfs_share(zhp) != 0) {
848 (void) fprintf(stderr, gettext("filesystem "
849 "successfully created, but not shared\n"));
850 ret = 1;
851 }
852 }
853
854error:
855 if (zhp)
856 zfs_close(zhp);
857 nvlist_free(props);
858 return (ret);
859badusage:
860 nvlist_free(props);
861 usage(B_FALSE);
862 return (2);
863}
864
865/*
428870ff
BB		 866 * zfs destroy [-rRf] <fs, vol>
867 * zfs destroy [-rRd] <snap>
34dc7c2f 868 *
428870ff
BB		 869 * -r Recursively destroy all children
870 * -R Recursively destroy all dependents, including clones
871 * -f Force unmounting of any dependents
45d1cae3 872 * -d If we can't destroy now, mark for deferred destruction
34dc7c2f
BB		 873 *
874 * Destroys the given dataset. By default, it will unmount any filesystems,
875 * and refuse to destroy a dataset that has any dependents. A dependent can
876 * either be a child, or a clone of a child.
877 */
878typedef struct destroy_cbdata {
879 boolean_t cb_first;
330d06f9
MA		 880 boolean_t cb_force;
881 boolean_t cb_recurse;
882 boolean_t cb_error;
883 boolean_t cb_doclones;
34dc7c2f 884 zfs_handle_t *cb_target;
45d1cae3 885 boolean_t cb_defer_destroy;
330d06f9
MA		 886 boolean_t cb_verbose;
887 boolean_t cb_parsable;
888 boolean_t cb_dryrun;
889 nvlist_t *cb_nvl;
890
891 /* first snap in contiguous run */
892 zfs_handle_t *cb_firstsnap;
893 /* previous snap in contiguous run */
894 zfs_handle_t *cb_prevsnap;
895 int64_t cb_snapused;
896 char *cb_snapspec;
34dc7c2f
BB		 897} destroy_cbdata_t;
898
899/*
900 * Check for any dependents based on the '-r' or '-R' flags.
901 */
902static int
903destroy_check_dependent(zfs_handle_t *zhp, void *data)
904{
905 destroy_cbdata_t *cbp = data;
906 const char *tname = zfs_get_name(cbp->cb_target);
907 const char *name = zfs_get_name(zhp);
908
909 if (strncmp(tname, name, strlen(tname)) == 0 &&
910 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
911 /*
912 * This is a direct descendant, not a clone somewhere else in
913 * the hierarchy.
914 */
915 if (cbp->cb_recurse)
916 goto out;
917
918 if (cbp->cb_first) {
919 (void) fprintf(stderr, gettext("cannot destroy '%s': "
920 "%s has children\n"),
921 zfs_get_name(cbp->cb_target),
922 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
923 (void) fprintf(stderr, gettext("use '-r' to destroy "
924 "the following datasets:\n"));
925 cbp->cb_first = B_FALSE;
330d06f9 926 cbp->cb_error = B_TRUE;
34dc7c2f
BB		 927 }
928
929 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
930 } else {
931 /*
932 * This is a clone. We only want to report this if the '-r'
933 * wasn't specified, or the target is a snapshot.
934 */
935 if (!cbp->cb_recurse &&
936 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
937 goto out;
938
939 if (cbp->cb_first) {
940 (void) fprintf(stderr, gettext("cannot destroy '%s': "
941 "%s has dependent clones\n"),
942 zfs_get_name(cbp->cb_target),
943 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
944 (void) fprintf(stderr, gettext("use '-R' to destroy "
945 "the following datasets:\n"));
946 cbp->cb_first = B_FALSE;
330d06f9
MA		 947 cbp->cb_error = B_TRUE;
948 cbp->cb_dryrun = B_TRUE;
34dc7c2f
BB		 949 }
950
951 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
952 }
953
954out:
955 zfs_close(zhp);
956 return (0);
957}
958
959static int
960destroy_callback(zfs_handle_t *zhp, void *data)
961{
330d06f9
MA		 962 destroy_cbdata_t *cb = data;
963 const char *name = zfs_get_name(zhp);
964
965 if (cb->cb_verbose) {
966 if (cb->cb_parsable) {
967 (void) printf("destroy\t%s\n", name);
968 } else if (cb->cb_dryrun) {
969 (void) printf(gettext("would destroy %s\n"),
970 name);
971 } else {
972 (void) printf(gettext("will destroy %s\n"),
973 name);
974 }
975 }
34dc7c2f
BB		 976
977 /*
978 * Ignore pools (which we've already flagged as an error before getting
428870ff 979 * here).
34dc7c2f
BB		 980 */
981 if (strchr(zfs_get_name(zhp), '/') == NULL &&
982 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
983 zfs_close(zhp);
984 return (0);
985 }
986
330d06f9
MA		 987 if (!cb->cb_dryrun) {
988 if (zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
989 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
990 zfs_close(zhp);
991 return (-1);
992 }
34dc7c2f
BB		 993 }
994
995 zfs_close(zhp);
996 return (0);
997}
998
999static int
330d06f9 1000destroy_print_cb(zfs_handle_t *zhp, void *arg)
34dc7c2f 1001{
330d06f9
MA		 1002 destroy_cbdata_t *cb = arg;
1003 const char *name = zfs_get_name(zhp);
1004 int err = 0;
1005
1006 if (nvlist_exists(cb->cb_nvl, name)) {
1007 if (cb->cb_firstsnap == NULL)
1008 cb->cb_firstsnap = zfs_handle_dup(zhp);
1009 if (cb->cb_prevsnap != NULL)
1010 zfs_close(cb->cb_prevsnap);
1011 /* this snap continues the current range */
1012 cb->cb_prevsnap = zfs_handle_dup(zhp);
1013 if (cb->cb_verbose) {
1014 if (cb->cb_parsable) {
1015 (void) printf("destroy\t%s\n", name);
1016 } else if (cb->cb_dryrun) {
1017 (void) printf(gettext("would destroy %s\n"),
1018 name);
1019 } else {
1020 (void) printf(gettext("will destroy %s\n"),
1021 name);
1022 }
34dc7c2f 1023 }
330d06f9
MA		 1024 } else if (cb->cb_firstsnap != NULL) {
1025 /* end of this range */
1026 uint64_t used = 0;
1027 err = zfs_get_snapused_int(cb->cb_firstsnap,
1028 cb->cb_prevsnap, &used);
1029 cb->cb_snapused += used;
1030 zfs_close(cb->cb_firstsnap);
1031 cb->cb_firstsnap = NULL;
1032 zfs_close(cb->cb_prevsnap);
1033 cb->cb_prevsnap = NULL;
34dc7c2f 1034 }
330d06f9
MA		 1035 zfs_close(zhp);
1036 return (err);
1037}
34dc7c2f 1038
330d06f9
MA		 1039static int
1040destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1041{
1042 int err;
1043 assert(cb->cb_firstsnap == NULL);
1044 assert(cb->cb_prevsnap == NULL);
1045 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1046 if (cb->cb_firstsnap != NULL) {
1047 uint64_t used = 0;
1048 if (err == 0) {
1049 err = zfs_get_snapused_int(cb->cb_firstsnap,
1050 cb->cb_prevsnap, &used);
1051 }
1052 cb->cb_snapused += used;
1053 zfs_close(cb->cb_firstsnap);
1054 cb->cb_firstsnap = NULL;
1055 zfs_close(cb->cb_prevsnap);
1056 cb->cb_prevsnap = NULL;
1057 }
1058 return (err);
1059}
1060
1061static int
1062snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1063{
1064 destroy_cbdata_t *cb = arg;
1065 int err = 0;
1066
1067 /* Check for clones. */
1068 if (!cb->cb_doclones) {
1069 cb->cb_target = zhp;
1070 cb->cb_first = B_TRUE;
1071 err = zfs_iter_dependents(zhp, B_TRUE,
1072 destroy_check_dependent, cb);
1073 }
1074
1075 if (err == 0) {
1076 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1077 nomem();
1078 }
1079 zfs_close(zhp);
1080 return (err);
1081}
1082
1083static int
1084gather_snapshots(zfs_handle_t *zhp, void *arg)
1085{
1086 destroy_cbdata_t *cb = arg;
1087 int err = 0;
1088
1089 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1090 if (err == ENOENT)
1091 err = 0;
1092 if (err != 0)
1093 goto out;
1094
1095 if (cb->cb_verbose) {
1096 err = destroy_print_snapshots(zhp, cb);
1097 if (err != 0)
1098 goto out;
1099 }
1100
1101 if (cb->cb_recurse)
1102 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1103
1104out:
1105 zfs_close(zhp);
1106 return (err);
1107}
1108
1109static int
1110destroy_clones(destroy_cbdata_t *cb)
1111{
1112 nvpair_t *pair;
1113 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1114 pair != NULL;
1115 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1116 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1117 ZFS_TYPE_SNAPSHOT);
1118 if (zhp != NULL) {
1119 boolean_t defer = cb->cb_defer_destroy;
1120 int err;
1121
1122 /*
1123 * We can't defer destroy non-snapshots, so set it to
1124 * false while destroying the clones.
1125 */
1126 cb->cb_defer_destroy = B_FALSE;
1127 err = zfs_iter_dependents(zhp, B_FALSE,
1128 destroy_callback, cb);
1129 cb->cb_defer_destroy = defer;
1130 zfs_close(zhp);
1131 if (err != 0)
1132 return (err);
1133 }
1134 }
1135 return (0);
34dc7c2f
BB		 1136}
1137
1138static int
1139zfs_do_destroy(int argc, char **argv)
1140{
1141 destroy_cbdata_t cb = { 0 };
1142 int c;
1143 zfs_handle_t *zhp;
330d06f9 1144 char *at;
428870ff 1145 zfs_type_t type = ZFS_TYPE_DATASET;
34dc7c2f
BB		 1146
1147 /* check options */
330d06f9 1148 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
34dc7c2f 1149 switch (c) {
330d06f9
MA		 1150 case 'v':
1151 cb.cb_verbose = B_TRUE;
1152 break;
1153 case 'p':
1154 cb.cb_verbose = B_TRUE;
1155 cb.cb_parsable = B_TRUE;
1156 break;
1157 case 'n':
1158 cb.cb_dryrun = B_TRUE;
1159 break;
45d1cae3
BB		 1160 case 'd':
1161 cb.cb_defer_destroy = B_TRUE;
428870ff 1162 type = ZFS_TYPE_SNAPSHOT;
45d1cae3 1163 break;
34dc7c2f 1164 case 'f':
330d06f9 1165 cb.cb_force = B_TRUE;
34dc7c2f
BB		 1166 break;
1167 case 'r':
330d06f9 1168 cb.cb_recurse = B_TRUE;
34dc7c2f
BB		 1169 break;
1170 case 'R':
330d06f9
MA		 1171 cb.cb_recurse = B_TRUE;
1172 cb.cb_doclones = B_TRUE;
34dc7c2f
BB		 1173 break;
1174 case '?':
1175 default:
1176 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1177 optopt);
1178 usage(B_FALSE);
1179 }
1180 }
1181
1182 argc -= optind;
1183 argv += optind;
1184
1185 /* check number of arguments */
1186 if (argc == 0) {
330d06f9 1187 (void) fprintf(stderr, gettext("missing dataset argument\n"));
34dc7c2f
BB		 1188 usage(B_FALSE);
1189 }
1190 if (argc > 1) {
1191 (void) fprintf(stderr, gettext("too many arguments\n"));
1192 usage(B_FALSE);
1193 }
1194
330d06f9
MA		 1195 at = strchr(argv[0], '@');
1196 if (at != NULL) {
1197 int err = 0;
34dc7c2f 1198
330d06f9
MA		 1199 /* Build the list of snaps to destroy in cb_nvl. */
1200 if (nvlist_alloc(&cb.cb_nvl, NV_UNIQUE_NAME, 0) != 0)
1201 nomem();
1202
1203 *at = '\0';
1204 zhp = zfs_open(g_zfs, argv[0],
1205 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1206 if (zhp == NULL)
34dc7c2f 1207 return (1);
34dc7c2f 1208
330d06f9
MA		 1209 cb.cb_snapspec = at + 1;
1210 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1211 cb.cb_error) {
1212 zfs_close(zhp);
1213 nvlist_free(cb.cb_nvl);
1214 return (1);
1215 }
428870ff 1216
330d06f9
MA		 1217 if (nvlist_empty(cb.cb_nvl)) {
1218 (void) fprintf(stderr, gettext("could not find any "
1219 "snapshots to destroy; check snapshot names.\n"));
1220 zfs_close(zhp);
1221 nvlist_free(cb.cb_nvl);
1222 return (1);
1223 }
1224
1225 if (cb.cb_verbose) {
1226 char buf[16];
1227 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1228 if (cb.cb_parsable) {
1229 (void) printf("reclaim\t%llu\n",
1230 (u_longlong_t)cb.cb_snapused);
1231 } else if (cb.cb_dryrun) {
1232 (void) printf(gettext("would reclaim %s\n"),
1233 buf);
1234 } else {
1235 (void) printf(gettext("will reclaim %s\n"),
1236 buf);
34dc7c2f
BB		 1237 }
1238 }
1239
330d06f9
MA		 1240 if (!cb.cb_dryrun) {
1241 if (cb.cb_doclones)
1242 err = destroy_clones(&cb);
1243 if (err == 0) {
1244 err = zfs_destroy_snaps_nvl(zhp, cb.cb_nvl,
1245 cb.cb_defer_destroy);
1246 }
34dc7c2f 1247 }
34dc7c2f 1248
330d06f9
MA		 1249 zfs_close(zhp);
1250 nvlist_free(cb.cb_nvl);
1251 if (err != 0)
1252 return (1);
1253 } else {
1254 /* Open the given dataset */
1255 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1256 return (1);
34dc7c2f 1257
330d06f9 1258 cb.cb_target = zhp;
34dc7c2f 1259
330d06f9
MA		 1260 /*
1261 * Perform an explicit check for pools before going any further.
1262 */
1263 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1264 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1265 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1266 "operation does not apply to pools\n"),
1267 zfs_get_name(zhp));
1268 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1269 "%s' to destroy all datasets in the pool\n"),
1270 zfs_get_name(zhp));
1271 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1272 "to destroy the pool itself\n"), zfs_get_name(zhp));
1273 zfs_close(zhp);
1274 return (1);
1275 }
34dc7c2f 1276
330d06f9
MA		 1277 /*
1278 * Check for any dependents and/or clones.
1279 */
1280 cb.cb_first = B_TRUE;
1281 if (!cb.cb_doclones &&
1282 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1283 &cb) != 0) {
1284 zfs_close(zhp);
1285 return (1);
1286 }
34dc7c2f 1287
330d06f9
MA		 1288 if (cb.cb_error) {
1289 zfs_close(zhp);
1290 return (1);
1291 }
34dc7c2f 1292
330d06f9
MA		 1293 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1294 &cb) != 0) {
1295 zfs_close(zhp);
1296 return (1);
1297 }
34dc7c2f 1298
330d06f9
MA		 1299 /*
1300 * Do the real thing. The callback will close the
1301 * handle regardless of whether it succeeds or not.
1302 */
1303 if (destroy_callback(zhp, &cb) != 0)
1304 return (1);
1305 }
34dc7c2f 1306
34dc7c2f
BB		 1307 return (0);
1308}
1309
428870ff
BB		 1310static boolean_t
1311is_recvd_column(zprop_get_cbdata_t *cbp)
1312{
1313 int i;
1314 zfs_get_column_t col;
1315
1316 for (i = 0; i < ZFS_GET_NCOLS &&
1317 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1318 if (col == GET_COL_RECVD)
1319 return (B_TRUE);
1320 return (B_FALSE);
1321}
1322
34dc7c2f 1323/*
428870ff
BB		 1324 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1325 * < all | property[,property]... > < fs | snap | vol > ...
34dc7c2f
BB		 1326 *
1327 * -r recurse over any child datasets
1328 * -H scripted mode. Headers are stripped, and fields are separated
1329 * by tabs instead of spaces.
428870ff
BB		 1330 * -o Set of fields to display. One of "name,property,value,
1331 * received,source". Default is "name,property,value,source".
1332 * "all" is an alias for all five.
34dc7c2f 1333 * -s Set of sources to allow. One of
428870ff
BB		 1334 * "local,default,inherited,received,temporary,none". Default is
1335 * all six.
34dc7c2f
BB		 1336 * -p Display values in parsable (literal) format.
1337 *
1338 * Prints properties for the given datasets. The user can control which
1339 * columns to display as well as which property types to allow.
1340 */
1341
1342/*
1343 * Invoked to display the properties for a single dataset.
1344 */
1345static int
1346get_callback(zfs_handle_t *zhp, void *data)
1347{
1348 char buf[ZFS_MAXPROPLEN];
428870ff 1349 char rbuf[ZFS_MAXPROPLEN];
34dc7c2f
BB		 1350 zprop_source_t sourcetype;
1351 char source[ZFS_MAXNAMELEN];
1352 zprop_get_cbdata_t *cbp = data;
428870ff 1353 nvlist_t *user_props = zfs_get_user_props(zhp);
34dc7c2f
BB		 1354 zprop_list_t *pl = cbp->cb_proplist;
1355 nvlist_t *propval;
1356 char *strval;
1357 char *sourceval;
428870ff 1358 boolean_t received = is_recvd_column(cbp);
34dc7c2f
BB		 1359
1360 for (; pl != NULL; pl = pl->pl_next) {
428870ff 1361 char *recvdval = NULL;
34dc7c2f
BB		 1362 /*
1363 * Skip the special fake placeholder. This will also skip over
1364 * the name property when 'all' is specified.
1365 */
1366 if (pl->pl_prop == ZFS_PROP_NAME &&
1367 pl == cbp->cb_proplist)
1368 continue;
1369
1370 if (pl->pl_prop != ZPROP_INVAL) {
1371 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1372 sizeof (buf), &sourcetype, source,
1373 sizeof (source),
1374 cbp->cb_literal) != 0) {
1375 if (pl->pl_all)
1376 continue;
1377 if (!zfs_prop_valid_for_type(pl->pl_prop,
1378 ZFS_TYPE_DATASET)) {
1379 (void) fprintf(stderr,
1380 gettext("No such property '%s'\n"),
1381 zfs_prop_to_name(pl->pl_prop));
1382 continue;
1383 }
1384 sourcetype = ZPROP_SRC_NONE;
1385 (void) strlcpy(buf, "-", sizeof (buf));
1386 }
1387
428870ff
BB		 1388 if (received && (zfs_prop_get_recvd(zhp,
1389 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1390 cbp->cb_literal) == 0))
1391 recvdval = rbuf;
1392
34dc7c2f
BB		 1393 zprop_print_one_property(zfs_get_name(zhp), cbp,
1394 zfs_prop_to_name(pl->pl_prop),
428870ff 1395 buf, sourcetype, source, recvdval);
9babb374
BB		 1396 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1397 sourcetype = ZPROP_SRC_LOCAL;
1398
1399 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1400 buf, sizeof (buf), cbp->cb_literal) != 0) {
1401 sourcetype = ZPROP_SRC_NONE;
1402 (void) strlcpy(buf, "-", sizeof (buf));
1403 }
1404
330d06f9
MA		 1405 zprop_print_one_property(zfs_get_name(zhp), cbp,
1406 pl->pl_user_prop, buf, sourcetype, source, NULL);
1407 } else if (zfs_prop_written(pl->pl_user_prop)) {
1408 sourcetype = ZPROP_SRC_LOCAL;
1409
1410 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1411 buf, sizeof (buf), cbp->cb_literal) != 0) {
1412 sourcetype = ZPROP_SRC_NONE;
1413 (void) strlcpy(buf, "-", sizeof (buf));
1414 }
1415
9babb374 1416 zprop_print_one_property(zfs_get_name(zhp), cbp,
428870ff 1417 pl->pl_user_prop, buf, sourcetype, source, NULL);
34dc7c2f 1418 } else {
428870ff 1419 if (nvlist_lookup_nvlist(user_props,
34dc7c2f
BB		 1420 pl->pl_user_prop, &propval) != 0) {
1421 if (pl->pl_all)
1422 continue;
1423 sourcetype = ZPROP_SRC_NONE;
1424 strval = "-";
1425 } else {
1426 verify(nvlist_lookup_string(propval,
1427 ZPROP_VALUE, &strval) == 0);
1428 verify(nvlist_lookup_string(propval,
1429 ZPROP_SOURCE, &sourceval) == 0);
1430
1431 if (strcmp(sourceval,
1432 zfs_get_name(zhp)) == 0) {
1433 sourcetype = ZPROP_SRC_LOCAL;
428870ff
BB		 1434 } else if (strcmp(sourceval,
1435 ZPROP_SOURCE_VAL_RECVD) == 0) {
1436 sourcetype = ZPROP_SRC_RECEIVED;
34dc7c2f
BB		 1437 } else {
1438 sourcetype = ZPROP_SRC_INHERITED;
1439 (void) strlcpy(source,
1440 sourceval, sizeof (source));
1441 }
1442 }
1443
428870ff
BB		 1444 if (received && (zfs_prop_get_recvd(zhp,
1445 pl->pl_user_prop, rbuf, sizeof (rbuf),
1446 cbp->cb_literal) == 0))
1447 recvdval = rbuf;
1448
34dc7c2f
BB		 1449 zprop_print_one_property(zfs_get_name(zhp), cbp,
1450 pl->pl_user_prop, strval, sourcetype,
428870ff 1451 source, recvdval);
34dc7c2f
BB		 1452 }
1453 }
1454
1455 return (0);
1456}
1457
1458static int
1459zfs_do_get(int argc, char **argv)
1460{
1461 zprop_get_cbdata_t cb = { 0 };
bb939d10 1462 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
34dc7c2f 1463 char *value, *fields;
ad60af8e 1464 int ret = 0;
9babb374 1465 int limit = 0;
34dc7c2f
BB		 1466 zprop_list_t fake_name = { 0 };
1467
1468 /*
1469 * Set up default columns and sources.
1470 */
1471 cb.cb_sources = ZPROP_SRC_ALL;
1472 cb.cb_columns[0] = GET_COL_NAME;
1473 cb.cb_columns[1] = GET_COL_PROPERTY;
1474 cb.cb_columns[2] = GET_COL_VALUE;
1475 cb.cb_columns[3] = GET_COL_SOURCE;
1476 cb.cb_type = ZFS_TYPE_DATASET;
1477
1478 /* check options */
9babb374 1479 while ((c = getopt(argc, argv, ":d:o:s:rHp")) != -1) {
34dc7c2f
BB		 1480 switch (c) {
1481 case 'p':
1482 cb.cb_literal = B_TRUE;
1483 break;
9babb374
BB		 1484 case 'd':
1485 limit = parse_depth(optarg, &flags);
1486 break;
34dc7c2f 1487 case 'r':
b128c09f 1488 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 1489 break;
1490 case 'H':
1491 cb.cb_scripted = B_TRUE;
1492 break;
1493 case ':':
1494 (void) fprintf(stderr, gettext("missing argument for "
1495 "'%c' option\n"), optopt);
1496 usage(B_FALSE);
1497 break;
1498 case 'o':
1499 /*
1500 * Process the set of columns to display. We zero out
1501 * the structure to give us a blank slate.
1502 */
1503 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1504 i = 0;
1505 while (*optarg != '\0') {
1506 static char *col_subopts[] =
428870ff
BB		 1507 { "name", "property", "value", "received",
1508 "source", "all", NULL };
34dc7c2f 1509
428870ff 1510 if (i == ZFS_GET_NCOLS) {
34dc7c2f
BB		 1511 (void) fprintf(stderr, gettext("too "
1512 "many fields given to -o "
1513 "option\n"));
1514 usage(B_FALSE);
1515 }
1516
1517 switch (getsubopt(&optarg, col_subopts,
1518 &value)) {
1519 case 0:
1520 cb.cb_columns[i++] = GET_COL_NAME;
1521 break;
1522 case 1:
1523 cb.cb_columns[i++] = GET_COL_PROPERTY;
1524 break;
1525 case 2:
1526 cb.cb_columns[i++] = GET_COL_VALUE;
1527 break;
1528 case 3:
428870ff
BB		 1529 cb.cb_columns[i++] = GET_COL_RECVD;
1530 flags |= ZFS_ITER_RECVD_PROPS;
1531 break;
1532 case 4:
34dc7c2f
BB		 1533 cb.cb_columns[i++] = GET_COL_SOURCE;
1534 break;
428870ff
BB		 1535 case 5:
1536 if (i > 0) {
1537 (void) fprintf(stderr,
1538 gettext("\"all\" conflicts "
1539 "with specific fields "
1540 "given to -o option\n"));
1541 usage(B_FALSE);
1542 }
1543 cb.cb_columns[0] = GET_COL_NAME;
1544 cb.cb_columns[1] = GET_COL_PROPERTY;
1545 cb.cb_columns[2] = GET_COL_VALUE;
1546 cb.cb_columns[3] = GET_COL_RECVD;
1547 cb.cb_columns[4] = GET_COL_SOURCE;
1548 flags |= ZFS_ITER_RECVD_PROPS;
1549 i = ZFS_GET_NCOLS;
1550 break;
34dc7c2f
BB		 1551 default:
1552 (void) fprintf(stderr,
1553 gettext("invalid column name "
1554 "'%s'\n"), value);
1555 usage(B_FALSE);
1556 }
1557 }
1558 break;
1559
1560 case 's':
1561 cb.cb_sources = 0;
1562 while (*optarg != '\0') {
1563 static char *source_subopts[] = {
1564 "local", "default", "inherited",
428870ff
BB		 1565 "received", "temporary", "none",
1566 NULL };
34dc7c2f
BB		 1567
1568 switch (getsubopt(&optarg, source_subopts,
1569 &value)) {
1570 case 0:
1571 cb.cb_sources |= ZPROP_SRC_LOCAL;
1572 break;
1573 case 1:
1574 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1575 break;
1576 case 2:
1577 cb.cb_sources |= ZPROP_SRC_INHERITED;
1578 break;
1579 case 3:
428870ff 1580 cb.cb_sources |= ZPROP_SRC_RECEIVED;
34dc7c2f
BB		 1581 break;
1582 case 4:
428870ff
BB		 1583 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1584 break;
1585 case 5:
34dc7c2f
BB		 1586 cb.cb_sources |= ZPROP_SRC_NONE;
1587 break;
1588 default:
1589 (void) fprintf(stderr,
1590 gettext("invalid source "
1591 "'%s'\n"), value);
1592 usage(B_FALSE);
1593 }
1594 }
1595 break;
1596
1597 case '?':
1598 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1599 optopt);
1600 usage(B_FALSE);
1601 }
1602 }
1603
1604 argc -= optind;
1605 argv += optind;
1606
1607 if (argc < 1) {
1608 (void) fprintf(stderr, gettext("missing property "
1609 "argument\n"));
1610 usage(B_FALSE);
1611 }
1612
1613 fields = argv[0];
1614
1615 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1616 != 0)
1617 usage(B_FALSE);
1618
1619 argc--;
1620 argv++;
1621
1622 /*
1623 * As part of zfs_expand_proplist(), we keep track of the maximum column
1624 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1625 * need to know the maximum name length. However, the user likely did
1626 * not specify 'name' as one of the properties to fetch, so we need to
1627 * make sure we always include at least this property for
1628 * print_get_headers() to work properly.
1629 */
1630 if (cb.cb_proplist != NULL) {
1631 fake_name.pl_prop = ZFS_PROP_NAME;
1632 fake_name.pl_width = strlen(gettext("NAME"));
1633 fake_name.pl_next = cb.cb_proplist;
1634 cb.cb_proplist = &fake_name;
1635 }
1636
1637 cb.cb_first = B_TRUE;
1638
1639 /* run for each object */
b128c09f 1640 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, NULL,
9babb374 1641 &cb.cb_proplist, limit, get_callback, &cb);
34dc7c2f
BB		 1642
1643 if (cb.cb_proplist == &fake_name)
1644 zprop_free_list(fake_name.pl_next);
1645 else
1646 zprop_free_list(cb.cb_proplist);
1647
1648 return (ret);
1649}
1650
1651/*
428870ff 1652 * inherit [-rS] <property> <fs|vol> ...
34dc7c2f 1653 *
428870ff
BB		 1654 * -r Recurse over all children
1655 * -S Revert to received value, if any
34dc7c2f
BB		 1656 *
1657 * For each dataset specified on the command line, inherit the given property
1658 * from its parent. Inheriting a property at the pool level will cause it to
1659 * use the default value. The '-r' flag will recurse over all children, and is
1660 * useful for setting a property on a hierarchy-wide basis, regardless of any
1661 * local modifications for each dataset.
1662 */
1663
428870ff
BB		 1664typedef struct inherit_cbdata {
1665 const char *cb_propname;
1666 boolean_t cb_received;
1667} inherit_cbdata_t;
1668
34dc7c2f 1669static int
b128c09f 1670inherit_recurse_cb(zfs_handle_t *zhp, void *data)
34dc7c2f 1671{
428870ff
BB		 1672 inherit_cbdata_t *cb = data;
1673 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
34dc7c2f 1674
b128c09f
BB		 1675 /*
1676 * If we're doing it recursively, then ignore properties that
1677 * are not valid for this type of dataset.
1678 */
1679 if (prop != ZPROP_INVAL &&
1680 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp)))
1681 return (0);
1682
428870ff 1683 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
b128c09f
BB		 1684}
1685
1686static int
1687inherit_cb(zfs_handle_t *zhp, void *data)
1688{
428870ff 1689 inherit_cbdata_t *cb = data;
b128c09f 1690
428870ff 1691 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
34dc7c2f
BB		 1692}
1693
1694static int
1695zfs_do_inherit(int argc, char **argv)
1696{
34dc7c2f
BB		 1697 int c;
1698 zfs_prop_t prop;
428870ff 1699 inherit_cbdata_t cb = { 0 };
34dc7c2f 1700 char *propname;
ad60af8e 1701 int ret = 0;
b128c09f 1702 int flags = 0;
428870ff 1703 boolean_t received = B_FALSE;
34dc7c2f
BB		 1704
1705 /* check options */
428870ff 1706 while ((c = getopt(argc, argv, "rS")) != -1) {
34dc7c2f
BB		 1707 switch (c) {
1708 case 'r':
b128c09f 1709 flags |= ZFS_ITER_RECURSE;
34dc7c2f 1710 break;
428870ff
BB		 1711 case 'S':
1712 received = B_TRUE;
1713 break;
34dc7c2f
BB		 1714 case '?':
1715 default:
1716 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1717 optopt);
1718 usage(B_FALSE);
1719 }
1720 }
1721
1722 argc -= optind;
1723 argv += optind;
1724
1725 /* check number of arguments */
1726 if (argc < 1) {
1727 (void) fprintf(stderr, gettext("missing property argument\n"));
1728 usage(B_FALSE);
1729 }
1730 if (argc < 2) {
1731 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1732 usage(B_FALSE);
1733 }
1734
1735 propname = argv[0];
1736 argc--;
1737 argv++;
1738
1739 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1740 if (zfs_prop_readonly(prop)) {
1741 (void) fprintf(stderr, gettext(
1742 "%s property is read-only\n"),
1743 propname);
1744 return (1);
1745 }
428870ff 1746 if (!zfs_prop_inheritable(prop) && !received) {
34dc7c2f
BB		 1747 (void) fprintf(stderr, gettext("'%s' property cannot "
1748 "be inherited\n"), propname);
1749 if (prop == ZFS_PROP_QUOTA ||
1750 prop == ZFS_PROP_RESERVATION ||
1751 prop == ZFS_PROP_REFQUOTA ||
1752 prop == ZFS_PROP_REFRESERVATION)
1753 (void) fprintf(stderr, gettext("use 'zfs set "
1754 "%s=none' to clear\n"), propname);
1755 return (1);
1756 }
428870ff
BB		 1757 if (received && (prop == ZFS_PROP_VOLSIZE ||
1758 prop == ZFS_PROP_VERSION)) {
1759 (void) fprintf(stderr, gettext("'%s' property cannot "
1760 "be reverted to a received value\n"), propname);
1761 return (1);
1762 }
34dc7c2f
BB		 1763 } else if (!zfs_prop_user(propname)) {
1764 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1765 propname);
1766 usage(B_FALSE);
1767 }
1768
428870ff
BB		 1769 cb.cb_propname = propname;
1770 cb.cb_received = received;
1771
b128c09f
BB		 1772 if (flags & ZFS_ITER_RECURSE) {
1773 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
428870ff 1774 NULL, NULL, 0, inherit_recurse_cb, &cb);
b128c09f
BB		 1775 } else {
1776 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
428870ff 1777 NULL, NULL, 0, inherit_cb, &cb);
b128c09f 1778 }
34dc7c2f
BB		 1779
1780 return (ret);
1781}
1782
1783typedef struct upgrade_cbdata {
1784 uint64_t cb_numupgraded;
1785 uint64_t cb_numsamegraded;
1786 uint64_t cb_numfailed;
1787 uint64_t cb_version;
1788 boolean_t cb_newer;
1789 boolean_t cb_foundone;
1790 char cb_lastfs[ZFS_MAXNAMELEN];
1791} upgrade_cbdata_t;
1792
1793static int
1794same_pool(zfs_handle_t *zhp, const char *name)
1795{
1796 int len1 = strcspn(name, "/@");
1797 const char *zhname = zfs_get_name(zhp);
1798 int len2 = strcspn(zhname, "/@");
1799
1800 if (len1 != len2)
1801 return (B_FALSE);
1802 return (strncmp(name, zhname, len1) == 0);
1803}
1804
1805static int
1806upgrade_list_callback(zfs_handle_t *zhp, void *data)
1807{
1808 upgrade_cbdata_t *cb = data;
1809 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1810
1811 /* list if it's old/new */
1812 if ((!cb->cb_newer && version < ZPL_VERSION) ||
1813 (cb->cb_newer && version > ZPL_VERSION)) {
1814 char *str;
1815 if (cb->cb_newer) {
1816 str = gettext("The following filesystems are "
1817 "formatted using a newer software version and\n"
1818 "cannot be accessed on the current system.\n\n");
1819 } else {
1820 str = gettext("The following filesystems are "
1821 "out of date, and can be upgraded. After being\n"
1822 "upgraded, these filesystems (and any 'zfs send' "
1823 "streams generated from\n"
1824 "subsequent snapshots) will no longer be "
1825 "accessible by older software versions.\n\n");
1826 }
1827
1828 if (!cb->cb_foundone) {
1829 (void) puts(str);
1830 (void) printf(gettext("VER FILESYSTEM\n"));
1831 (void) printf(gettext("--- ------------\n"));
1832 cb->cb_foundone = B_TRUE;
1833 }
1834
1835 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
1836 }
1837
1838 return (0);
1839}
1840
1841static int
1842upgrade_set_callback(zfs_handle_t *zhp, void *data)
1843{
1844 upgrade_cbdata_t *cb = data;
1845 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
428870ff
BB		 1846 int needed_spa_version;
1847 int spa_version;
1848
1849 if (zfs_spa_version(zhp, &spa_version) < 0)
1850 return (-1);
1851
1852 needed_spa_version = zfs_spa_version_map(cb->cb_version);
1853
1854 if (needed_spa_version < 0)
1855 return (-1);
1856
1857 if (spa_version < needed_spa_version) {
1858 /* can't upgrade */
1859 (void) printf(gettext("%s: can not be "
1860 "upgraded; the pool version needs to first "
1861 "be upgraded\nto version %d\n\n"),
1862 zfs_get_name(zhp), needed_spa_version);
1863 cb->cb_numfailed++;
1864 return (0);
34dc7c2f
BB		 1865 }
1866
1867 /* upgrade */
1868 if (version < cb->cb_version) {
1869 char verstr[16];
1870 (void) snprintf(verstr, sizeof (verstr),
b8864a23 1871 "%llu", (u_longlong_t)cb->cb_version);
34dc7c2f
BB		 1872 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
1873 /*
1874 * If they did "zfs upgrade -a", then we could
1875 * be doing ioctls to different pools. We need
1876 * to log this history once to each pool.
1877 */
1878 verify(zpool_stage_history(g_zfs, history_str) == 0);
1879 }
1880 if (zfs_prop_set(zhp, "version", verstr) == 0)
1881 cb->cb_numupgraded++;
1882 else
1883 cb->cb_numfailed++;
1884 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
1885 } else if (version > cb->cb_version) {
1886 /* can't downgrade */
1887 (void) printf(gettext("%s: can not be downgraded; "
1888 "it is already at version %u\n"),
1889 zfs_get_name(zhp), version);
1890 cb->cb_numfailed++;
1891 } else {
1892 cb->cb_numsamegraded++;
1893 }
1894 return (0);
1895}
1896
1897/*
1898 * zfs upgrade
1899 * zfs upgrade -v
1900 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
1901 */
1902static int
1903zfs_do_upgrade(int argc, char **argv)
1904{
34dc7c2f
BB		 1905 boolean_t all = B_FALSE;
1906 boolean_t showversions = B_FALSE;
ad60af8e 1907 int ret = 0;
34dc7c2f 1908 upgrade_cbdata_t cb = { 0 };
b8864a23 1909 signed char c;
b128c09f 1910 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
34dc7c2f
BB		 1911
1912 /* check options */
1913 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
1914 switch (c) {
1915 case 'r':
b128c09f 1916 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 1917 break;
1918 case 'v':
1919 showversions = B_TRUE;
1920 break;
1921 case 'V':
1922 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
1923 optarg, &cb.cb_version) != 0) {
1924 (void) fprintf(stderr,
1925 gettext("invalid version %s\n"), optarg);
1926 usage(B_FALSE);
1927 }
1928 break;
1929 case 'a':
1930 all = B_TRUE;
1931 break;
1932 case '?':
1933 default:
1934 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1935 optopt);
1936 usage(B_FALSE);
1937 }
1938 }
1939
1940 argc -= optind;
1941 argv += optind;
1942
b128c09f 1943 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
34dc7c2f 1944 usage(B_FALSE);
b128c09f
BB		 1945 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
1946 cb.cb_version || argc))
34dc7c2f
BB		 1947 usage(B_FALSE);
1948 if ((all || argc) && (showversions))
1949 usage(B_FALSE);
1950 if (all && argc)
1951 usage(B_FALSE);
1952
1953 if (showversions) {
1954 /* Show info on available versions. */
1955 (void) printf(gettext("The following filesystem versions are "
1956 "supported:\n\n"));
1957 (void) printf(gettext("VER DESCRIPTION\n"));
1958 (void) printf("--- -----------------------------------------"
1959 "---------------\n");
1960 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
1961 (void) printf(gettext(" 2 Enhanced directory entries\n"));
330d06f9
MA		 1962 (void) printf(gettext(" 3 Case insensitive and filesystem "
1963 "user identifier (FUID)\n"));
9babb374
BB		 1964 (void) printf(gettext(" 4 userquota, groupquota "
1965 "properties\n"));
428870ff 1966 (void) printf(gettext(" 5 System attributes\n"));
34dc7c2f 1967 (void) printf(gettext("\nFor more information on a particular "
428870ff
BB		 1968 "version, including supported releases,\n"));
1969 (void) printf("see the ZFS Administration Guide.\n\n");
34dc7c2f
BB		 1970 ret = 0;
1971 } else if (argc || all) {
1972 /* Upgrade filesystems */
1973 if (cb.cb_version == 0)
1974 cb.cb_version = ZPL_VERSION;
b128c09f 1975 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
9babb374 1976 NULL, NULL, 0, upgrade_set_callback, &cb);
34dc7c2f 1977 (void) printf(gettext("%llu filesystems upgraded\n"),
b8864a23 1978 (u_longlong_t)cb.cb_numupgraded);
34dc7c2f
BB		 1979 if (cb.cb_numsamegraded) {
1980 (void) printf(gettext("%llu filesystems already at "
1981 "this version\n"),
b8864a23 1982 (u_longlong_t)cb.cb_numsamegraded);
34dc7c2f
BB		 1983 }
1984 if (cb.cb_numfailed != 0)
1985 ret = 1;
1986 } else {
1987 /* List old-version filesytems */
1988 boolean_t found;
1989 (void) printf(gettext("This system is currently running "
1990 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
1991
b128c09f
BB		 1992 flags |= ZFS_ITER_RECURSE;
1993 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
9babb374 1994 NULL, NULL, 0, upgrade_list_callback, &cb);
34dc7c2f
BB		 1995
1996 found = cb.cb_foundone;
1997 cb.cb_foundone = B_FALSE;
1998 cb.cb_newer = B_TRUE;
1999
b128c09f 2000 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
9babb374 2001 NULL, NULL, 0, upgrade_list_callback, &cb);
34dc7c2f
BB		 2002
2003 if (!cb.cb_foundone && !found) {
2004 (void) printf(gettext("All filesystems are "
2005 "formatted with the current version.\n"));
2006 }
2007 }
2008
2009 return (ret);
2010}
2011
0b7936d5
AS		 2012#define USTYPE_USR_BIT (0)
2013#define USTYPE_GRP_BIT (1)
2014#define USTYPE_PSX_BIT (2)
2015#define USTYPE_SMB_BIT (3)
2016
2017#define USTYPE_USR (1 << USTYPE_USR_BIT)
2018#define USTYPE_GRP (1 << USTYPE_GRP_BIT)
2019
2020#define USTYPE_PSX (1 << USTYPE_PSX_BIT)
2021#define USTYPE_SMB (1 << USTYPE_SMB_BIT)
2022
2023#define USTYPE_PSX_USR (USTYPE_PSX | USTYPE_USR)
2024#define USTYPE_SMB_USR (USTYPE_SMB | USTYPE_USR)
2025#define USTYPE_PSX_GRP (USTYPE_PSX | USTYPE_GRP)
2026#define USTYPE_SMB_GRP (USTYPE_SMB | USTYPE_GRP)
2027#define USTYPE_ALL (USTYPE_PSX_USR | USTYPE_SMB_USR \
2028 | USTYPE_PSX_GRP | USTYPE_SMB_GRP)
2029
2030
2031#define USPROP_USED_BIT (0)
2032#define USPROP_QUOTA_BIT (1)
2033
2034#define USPROP_USED (1 << USPROP_USED_BIT)
2035#define USPROP_QUOTA (1 << USPROP_QUOTA_BIT)
2036
2037typedef struct us_node {
2038 nvlist_t *usn_nvl;
2039 uu_avl_node_t usn_avlnode;
2040 uu_list_node_t usn_listnode;
2041} us_node_t;
2042
2043typedef struct us_cbdata {
2044 nvlist_t **cb_nvlp;
2045 uu_avl_pool_t *cb_avl_pool;
2046 uu_avl_t *cb_avl;
2047 boolean_t cb_numname;
2048 boolean_t cb_nicenum;
2049 boolean_t cb_sid2posix;
2050 zfs_userquota_prop_t cb_prop;
2051 zfs_sort_column_t *cb_sortcol;
2052 size_t cb_max_typelen;
2053 size_t cb_max_namelen;
2054 size_t cb_max_usedlen;
2055 size_t cb_max_quotalen;
2056} us_cbdata_t;
2057
2058typedef struct {
2059 zfs_sort_column_t *si_sortcol;
2060 boolean_t si_num_name;
2061 boolean_t si_parsable;
2062} us_sort_info_t;
2063
2064static int
2065us_compare(const void *larg, const void *rarg, void *unused)
2066{
2067 const us_node_t *l = larg;
2068 const us_node_t *r = rarg;
2069 int rc = 0;
2070 us_sort_info_t *si = (us_sort_info_t *)unused;
2071 zfs_sort_column_t *sortcol = si->si_sortcol;
2072 boolean_t num_name = si->si_num_name;
2073 nvlist_t *lnvl = l->usn_nvl;
2074 nvlist_t *rnvl = r->usn_nvl;
2075
2076 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2077 char *lvstr = "";
2078 char *rvstr = "";
2079 uint32_t lv32 = 0;
2080 uint32_t rv32 = 0;
2081 uint64_t lv64 = 0;
2082 uint64_t rv64 = 0;
2083 zfs_prop_t prop = sortcol->sc_prop;
2084 const char *propname = NULL;
2085 boolean_t reverse = sortcol->sc_reverse;
2086
2087 switch (prop) {
2088 case ZFS_PROP_TYPE:
2089 propname = "type";
2090 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2091 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2092 if (rv32 != lv32)
2093 rc = (rv32 > lv32) ? 1 : -1;
2094 break;
2095 case ZFS_PROP_NAME:
2096 propname = "name";
2097 if (num_name) {
2098 (void) nvlist_lookup_uint32(lnvl, propname,
2099 &lv32);
2100 (void) nvlist_lookup_uint32(rnvl, propname,
2101 &rv32);
2102 if (rv32 != lv32)
2103 rc = (rv32 > lv32) ? 1 : -1;
2104 } else {
2105 (void) nvlist_lookup_string(lnvl, propname,
2106 &lvstr);
2107 (void) nvlist_lookup_string(rnvl, propname,
2108 &rvstr);
2109 rc = strcmp(lvstr, rvstr);
2110 }
2111 break;
2112
2113 case ZFS_PROP_USED:
2114 case ZFS_PROP_QUOTA:
2115 if (ZFS_PROP_USED == prop)
2116 propname = "used";
2117 else
2118 propname = "quota";
2119 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2120 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2121 if (rv64 != lv64)
2122 rc = (rv64 > lv64) ? 1 : -1;
2123 default:
2124 break;
2125 }
2126
2127 if (rc) {
2128 if (rc < 0)
2129 return (reverse ? 1 : -1);
2130 else
2131 return (reverse ? -1 : 1);
2132 }
2133 }
2134
2135 return (rc);
2136}
2137
2138static inline const char *
2139us_type2str(unsigned field_type)
2140{
2141 switch (field_type) {
2142 case USTYPE_PSX_USR:
2143 return ("POSIX User");
2144 case USTYPE_PSX_GRP:
2145 return ("POSIX Group");
2146 case USTYPE_SMB_USR:
2147 return ("SMB User");
2148 case USTYPE_SMB_GRP:
2149 return ("SMB Group");
2150 default:
2151 return ("Undefined");
2152 }
2153}
2154
34dc7c2f 2155/*
9babb374
BB		 2156 * zfs userspace
2157 */
2158static int
2159userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2160{
0b7936d5
AS		 2161 us_cbdata_t *cb = (us_cbdata_t *)arg;
2162 zfs_userquota_prop_t prop = cb->cb_prop;
9babb374 2163 char *name = NULL;
0b7936d5 2164 char *propname;
9babb374
BB		 2165 char namebuf[32];
2166 char sizebuf[32];
0b7936d5
AS		 2167 us_node_t *node;
2168 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2169 uu_avl_t *avl = cb->cb_avl;
2170 uu_avl_index_t idx;
2171 nvlist_t *props;
2172 us_node_t *n;
2173 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2174 unsigned type;
2175 const char *typestr;
2176 size_t namelen;
2177 size_t typelen;
2178 size_t sizelen;
2179 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
9babb374
BB		 2180
2181 if (domain == NULL || domain[0] == '\0') {
0b7936d5
AS		 2182 /* POSIX */
2183 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2184 type = USTYPE_PSX_GRP;
9babb374
BB		 2185 struct group *g = getgrgid(rid);
2186 if (g)
2187 name = g->gr_name;
2188 } else {
0b7936d5 2189 type = USTYPE_PSX_USR;
9babb374
BB		 2190 struct passwd *p = getpwuid(rid);
2191 if (p)
2192 name = p->pw_name;
2193 }
0b7936d5
AS		 2194 } else {
2195#ifdef HAVE_IDMAP
2196 char sid[ZFS_MAXNAMELEN+32];
2197 uid_t id;
2198 uint64_t classes;
ad60af8e 2199 int err = 0;
0b7936d5
AS		 2200 directory_error_t e;
2201
2202 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2203 /* SMB */
2204 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2205 type = USTYPE_SMB_GRP;
2206 err = sid_to_id(sid, B_FALSE, &id);
2207 } else {
2208 type = USTYPE_SMB_USR;
2209 err = sid_to_id(sid, B_TRUE, &id);
2210 }
2211
2212 if (err == 0) {
2213 rid = id;
2214
2215 e = directory_name_from_sid(NULL, sid, &name, &classes);
2216 if (e != NULL) {
2217 directory_error_free(e);
2218 return (NULL);
2219 }
2220
2221 if (name == NULL)
2222 name = sid;
2223 }
2224#else
2225 return (-1);
2226#endif /* HAVE_IDMAP */
9babb374
BB		 2227 }
2228
0b7936d5
AS		 2229/*
2230 * if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA)
2231 * ug = "group";
2232 * else
2233 * ug = "user";
2234 */
9babb374 2235
0b7936d5 2236 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED)
9babb374
BB		 2237 propname = "used";
2238 else
2239 propname = "quota";
2240
0b7936d5
AS		 2241 (void) snprintf(namebuf, sizeof (namebuf), "%u", rid);
2242 if (name == NULL)
9babb374 2243 name = namebuf;
0b7936d5
AS		 2244
2245 if (cb->cb_nicenum)
2246 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2247 else
2248 (void) sprintf(sizebuf, "%llu", (u_longlong_t)space);
2249
2250 node = safe_malloc(sizeof (us_node_t));
2251 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2252
2253 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) {
2254 free(node);
2255 return (-1);
2256 }
2257
2258 if (nvlist_add_uint32(props, "type", type) != 0)
2259 nomem();
2260
2261 if (cb->cb_numname) {
2262 if (nvlist_add_uint32(props, "name", rid) != 0)
2263 nomem();
2264 namelen = strlen(namebuf);
2265 } else {
2266 if (nvlist_add_string(props, "name", name) != 0)
2267 nomem();
2268 namelen = strlen(name);
2269 }
2270
2271 typestr = us_type2str(type);
2272 typelen = strlen(gettext(typestr));
2273 if (typelen > cb->cb_max_typelen)
2274 cb->cb_max_typelen = typelen;
2275
2276 if (namelen > cb->cb_max_namelen)
2277 cb->cb_max_namelen = namelen;
2278
2279 sizelen = strlen(sizebuf);
2280 if (0 == strcmp(propname, "used")) {
2281 if (sizelen > cb->cb_max_usedlen)
2282 cb->cb_max_usedlen = sizelen;
2283 } else {
2284 if (sizelen > cb->cb_max_quotalen)
2285 cb->cb_max_quotalen = sizelen;
2286 }
2287
2288 node->usn_nvl = props;
2289
2290 n = uu_avl_find(avl, node, &sortinfo, &idx);
2291 if (n == NULL)
2292 uu_avl_insert(avl, node, idx);
2293 else {
2294 nvlist_free(props);
2295 free(node);
2296 node = n;
2297 props = node->usn_nvl;
9babb374 2298 }
9babb374 2299
0b7936d5
AS		 2300 if (nvlist_add_uint64(props, propname, space) != 0)
2301 nomem();
2302
2303 return (0);
2304}
2305
2306static inline boolean_t
2307usprop_check(zfs_userquota_prop_t p, unsigned types, unsigned props)
2308{
2309 unsigned type;
2310 unsigned prop;
2311
2312 switch (p) {
2313 case ZFS_PROP_USERUSED:
2314 type = USTYPE_USR;
2315 prop = USPROP_USED;
2316 break;
2317 case ZFS_PROP_USERQUOTA:
2318 type = USTYPE_USR;
2319 prop = USPROP_QUOTA;
2320 break;
2321 case ZFS_PROP_GROUPUSED:
2322 type = USTYPE_GRP;
2323 prop = USPROP_USED;
2324 break;
2325 case ZFS_PROP_GROUPQUOTA:
2326 type = USTYPE_GRP;
2327 prop = USPROP_QUOTA;
2328 break;
2329 default: /* ALL */
2330 return (B_TRUE);
2331 };
2332
2333 return (type & types && prop & props);
2334}
2335
2336#define USFIELD_TYPE (1 << 0)
2337#define USFIELD_NAME (1 << 1)
2338#define USFIELD_USED (1 << 2)
2339#define USFIELD_QUOTA (1 << 3)
2340#define USFIELD_ALL (USFIELD_TYPE | USFIELD_NAME | USFIELD_USED | USFIELD_QUOTA)
2341
2342static int
2343parsefields(unsigned *fieldsp, char **names, unsigned *bits, size_t len)
2344{
2345 char *field = optarg;
2346 char *delim;
2347
2348 do {
2349 int i;
2350 boolean_t found = B_FALSE;
2351 delim = strchr(field, ',');
2352 if (delim != NULL)
2353 *delim = '\0';
2354
2355 for (i = 0; i < len; i++)
2356 if (0 == strcmp(field, names[i])) {
2357 found = B_TRUE;
2358 *fieldsp |= bits[i];
2359 break;
2360 }
2361
2362 if (!found) {
2363 (void) fprintf(stderr, gettext("invalid type '%s'"
2364 "for -t option\n"), field);
2365 return (-1);
2366 }
2367
2368 field = delim + 1;
2369 } while (delim);
9babb374
BB		 2370
2371 return (0);
2372}
2373
0b7936d5
AS		 2374
2375static char *type_names[] = { "posixuser", "smbuser", "posixgroup", "smbgroup",
2376 "all" };
2377static unsigned type_bits[] = {
2378 USTYPE_PSX_USR,
2379 USTYPE_SMB_USR,
2380 USTYPE_PSX_GRP,
2381 USTYPE_SMB_GRP,
2382 USTYPE_ALL
2383};
2384
2385static char *us_field_names[] = { "type", "name", "used", "quota" };
2386static unsigned us_field_bits[] = {
2387 USFIELD_TYPE,
2388 USFIELD_NAME,
2389 USFIELD_USED,
2390 USFIELD_QUOTA
2391};
2392
2393static void
2394print_us_node(boolean_t scripted, boolean_t parseable, unsigned fields,
2395 size_t type_width, size_t name_width, size_t used_width,
2396 size_t quota_width, us_node_t *node)
2397{
2398 nvlist_t *nvl = node->usn_nvl;
2399 nvpair_t *nvp = NULL;
2400 char valstr[ZFS_MAXNAMELEN];
2401 boolean_t first = B_TRUE;
2402 boolean_t quota_found = B_FALSE;
2403
2404 if (fields & USFIELD_QUOTA && !nvlist_exists(nvl, "quota"))
2405 if (nvlist_add_string(nvl, "quota", "none") != 0)
2406 nomem();
2407
2408 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2409 char *pname = nvpair_name(nvp);
2410 data_type_t type = nvpair_type(nvp);
2411 uint32_t val32 = 0;
2412 uint64_t val64 = 0;
2413 char *strval = NULL;
2414 unsigned field = 0;
2415 unsigned width = 0;
2416 int i;
2417 for (i = 0; i < 4; i++) {
2418 if (0 == strcmp(pname, us_field_names[i])) {
2419 field = us_field_bits[i];
2420 break;
2421 }
2422 }
2423
2424 if (!(field & fields))
2425 continue;
2426
2427 switch (type) {
2428 case DATA_TYPE_UINT32:
2429 (void) nvpair_value_uint32(nvp, &val32);
2430 break;
2431 case DATA_TYPE_UINT64:
2432 (void) nvpair_value_uint64(nvp, &val64);
2433 break;
2434 case DATA_TYPE_STRING:
2435 (void) nvpair_value_string(nvp, &strval);
2436 break;
2437 default:
2438 (void) fprintf(stderr, "Invalid data type\n");
2439 }
2440
2441 if (!first) {
2442 if (scripted)
2443 (void) printf("\t");
2444 else
2445 (void) printf(" ");
2446 }
2447
2448 switch (field) {
2449 case USFIELD_TYPE:
2450 strval = (char *)us_type2str(val32);
2451 width = type_width;
2452 break;
2453 case USFIELD_NAME:
2454 if (type == DATA_TYPE_UINT64) {
2455 (void) sprintf(valstr, "%llu",
2456 (u_longlong_t) val64);
2457 strval = valstr;
2458 }
2459 width = name_width;
2460 break;
2461 case USFIELD_USED:
2462 case USFIELD_QUOTA:
2463 if (type == DATA_TYPE_UINT64) {
2464 (void) nvpair_value_uint64(nvp, &val64);
2465 if (parseable)
2466 (void) sprintf(valstr, "%llu",
2467 (u_longlong_t) val64);
2468 else
2469 zfs_nicenum(val64, valstr,
2470 sizeof (valstr));
2471 strval = valstr;
2472 }
2473
2474 if (field == USFIELD_USED)
2475 width = used_width;
2476 else {
2477 quota_found = B_FALSE;
2478 width = quota_width;
2479 }
2480
2481 break;
2482 }
2483
2484 if (field == USFIELD_QUOTA && !quota_found)
2485 (void) printf("%*s", width, strval);
2486 else {
2487 if (type == DATA_TYPE_STRING)
2488 (void) printf("%-*s", width, strval);
2489 else
2490 (void) printf("%*s", width, strval);
2491 }
2492
2493 first = B_FALSE;
2494
2495 }
2496
2497 (void) printf("\n");
2498}
2499
2500static void
2501print_us(boolean_t scripted, boolean_t parsable, unsigned fields,
2502 unsigned type_width, unsigned name_width, unsigned used_width,
2503 unsigned quota_width, boolean_t rmnode, uu_avl_t *avl)
2504{
2505 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2506 us_node_t *node;
2507 const char *col;
2508 int i;
2509 int width[4] = { type_width, name_width, used_width, quota_width };
2510
2511 if (!scripted) {
2512 boolean_t first = B_TRUE;
2513 for (i = 0; i < 4; i++) {
2514 unsigned field = us_field_bits[i];
2515 if (!(field & fields))
2516 continue;
2517
2518 col = gettext(us_field_hdr[i]);
2519 if (field == USFIELD_TYPE || field == USFIELD_NAME)
2520 (void) printf(first?"%-*s":" %-*s", width[i],
2521 col);
2522 else
2523 (void) printf(first?"%*s":" %*s", width[i],
2524 col);
2525 first = B_FALSE;
2526 }
2527 (void) printf("\n");
2528 }
2529
2530 for (node = uu_avl_first(avl); node != NULL;
2531 node = uu_avl_next(avl, node)) {
2532 print_us_node(scripted, parsable, fields, type_width,
2533 name_width, used_width, used_width, node);
2534 if (rmnode)
2535 nvlist_free(node->usn_nvl);
2536 }
2537}
2538
9babb374
BB		 2539static int
2540zfs_do_userspace(int argc, char **argv)
2541{
2542 zfs_handle_t *zhp;
2543 zfs_userquota_prop_t p;
0b7936d5
AS		 2544 uu_avl_pool_t *avl_pool;
2545 uu_avl_t *avl_tree;
2546 uu_avl_walk_t *walk;
2547
2548 char *cmd;
2549 boolean_t scripted = B_FALSE;
2550 boolean_t prtnum = B_FALSE;
2551 boolean_t parseable = B_FALSE;
2552 boolean_t sid2posix = B_FALSE;
c70602f1 2553 int error = 0;
0b7936d5
AS		 2554 int c;
2555 zfs_sort_column_t *default_sortcol = NULL;
2556 zfs_sort_column_t *sortcol = NULL;
2557 unsigned types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2558 unsigned fields = 0;
2559 unsigned props = USPROP_USED | USPROP_QUOTA;
2560 us_cbdata_t cb;
2561 us_node_t *node;
2562 boolean_t resort_avl = B_FALSE;
2563
2564 if (argc < 2)
2565 usage(B_FALSE);
2566
2567 cmd = argv[0];
2568 if (0 == strcmp(cmd, "groupspace"))
2569 /* toggle default group types */
2570 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2571
2572 /* check options */
2573 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2574 switch (c) {
2575 case 'n':
2576 prtnum = B_TRUE;
2577 break;
2578 case 'H':
2579 scripted = B_TRUE;
2580 break;
2581 case 'p':
2582 parseable = B_TRUE;
2583 break;
2584 case 'o':
2585 if (parsefields(&fields, us_field_names, us_field_bits,
2586 4) != 0)
2587 return (1);
2588 break;
2589 case 's':
2590 if (zfs_add_sort_column(&sortcol, optarg,
2591 B_FALSE) != 0) {
2592 (void) fprintf(stderr,
2593 gettext("invalid property '%s'\n"), optarg);
2594 usage(B_FALSE);
2595 }
2596 break;
2597 case 'S':
2598 if (zfs_add_sort_column(&sortcol, optarg,
2599 B_TRUE) != 0) {
2600 (void) fprintf(stderr,
2601 gettext("invalid property '%s'\n"), optarg);
2602 usage(B_FALSE);
2603 }
2604 break;
2605 case 't':
2606 if (parsefields(&types, type_names, type_bits, 5))
2607 return (1);
2608 break;
2609 case 'i':
2610 sid2posix = B_TRUE;
2611 break;
2612 case ':':
2613 (void) fprintf(stderr, gettext("missing argument for "
2614 "'%c' option\n"), optopt);
2615 usage(B_FALSE);
2616 break;
2617 case '?':
2618 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2619 optopt);
2620 usage(B_FALSE);
2621 }
2622 }
2623
2624 argc -= optind;
2625 argv += optind;
2626
2627 /* ok, now we have sorted by default colums (type,name) avl tree */
2628 if (sortcol) {
2629 zfs_sort_column_t *sc;
2630 for (sc = sortcol; sc; sc = sc->sc_next) {
2631 if (sc->sc_prop == ZFS_PROP_QUOTA) {
2632 resort_avl = B_TRUE;
2633 break;
2634 }
2635 }
2636 }
2637
2638 if (!fields)
2639 fields = USFIELD_ALL;
9babb374 2640
9babb374
BB		 2641 if ((zhp = zfs_open(g_zfs, argv[argc-1], ZFS_TYPE_DATASET)) == NULL)
2642 return (1);
2643
0b7936d5
AS		 2644 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2645 offsetof(us_node_t, usn_avlnode),
2646 us_compare, UU_DEFAULT)) == NULL)
2647 nomem();
2648 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2649 nomem();
2650
2651 if (sortcol && !resort_avl)
2652 cb.cb_sortcol = sortcol;
2653 else {
2654 (void) zfs_add_sort_column(&default_sortcol, "type", B_FALSE);
2655 (void) zfs_add_sort_column(&default_sortcol, "name", B_FALSE);
2656 cb.cb_sortcol = default_sortcol;
2657 }
2658 cb.cb_numname = prtnum;
2659 cb.cb_nicenum = !parseable;
2660 cb.cb_avl_pool = avl_pool;
2661 cb.cb_avl = avl_tree;
2662 cb.cb_sid2posix = sid2posix;
2663 cb.cb_max_typelen = strlen(gettext("TYPE"));
2664 cb.cb_max_namelen = strlen(gettext("NAME"));
2665 cb.cb_max_usedlen = strlen(gettext("USED"));
2666 cb.cb_max_quotalen = strlen(gettext("QUOTA"));
9babb374
BB		 2667
2668 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
0b7936d5
AS		 2669 if (!usprop_check(p, types, props))
2670 continue;
2671
2672 cb.cb_prop = p;
2673 error = zfs_userspace(zhp, p, userspace_cb, &cb);
9babb374
BB		 2674 if (error)
2675 break;
2676 }
0b7936d5
AS		 2677
2678
2679 if (resort_avl) {
2680 us_node_t *node;
2681 us_node_t *rmnode;
2682 uu_list_pool_t *listpool;
2683 uu_list_t *list;
2684 uu_avl_index_t idx = 0;
2685 uu_list_index_t idx2 = 0;
2686 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2687 offsetof(us_node_t, usn_listnode), NULL,
2688 UU_DEFAULT);
2689 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2690
2691 node = uu_avl_first(avl_tree);
2692 uu_list_node_init(node, &node->usn_listnode, listpool);
2693 while (node != NULL) {
2694 rmnode = node;
2695 node = uu_avl_next(avl_tree, node);
2696 uu_avl_remove(avl_tree, rmnode);
2697 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) {
2698 uu_list_insert(list, rmnode, idx2);
2699 }
2700 }
2701
2702 for (node = uu_list_first(list); node != NULL;
2703 node = uu_list_next(list, node)) {
2704 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2705 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) ==
2706 NULL)
2707 uu_avl_insert(avl_tree, node, idx);
2708 }
2709
2710 uu_list_destroy(list);
2711 }
2712
2713 /* print & free node`s nvlist memory */
2714 print_us(scripted, parseable, fields, cb.cb_max_typelen,
2715 cb.cb_max_namelen, cb.cb_max_usedlen,
2716 cb.cb_max_quotalen, B_TRUE, cb.cb_avl);
2717
2718 if (sortcol)
2719 zfs_free_sort_columns(sortcol);
2720 zfs_free_sort_columns(default_sortcol);
2721
2722 /*
2723 * Finally, clean up the AVL tree.
2724 */
2725 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2726 nomem();
2727
2728 while ((node = uu_avl_walk_next(walk)) != NULL) {
2729 uu_avl_remove(cb.cb_avl, node);
2730 free(node);
2731 }
2732
2733 uu_avl_walk_end(walk);
2734 uu_avl_destroy(avl_tree);
2735 uu_avl_pool_destroy(avl_pool);
2736
9babb374
BB		 2737 return (error);
2738}
2739
2740/*
2741 * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...]
34dc7c2f
BB		 2742 * [-s property [-s property]...] [-S property [-S property]...]
2743 * <dataset> ...
2744 *
428870ff
BB		 2745 * -r Recurse over all children
2746 * -d Limit recursion by depth.
2747 * -H Scripted mode; elide headers and separate columns by tabs
2748 * -o Control which fields to display.
2749 * -t Control which object types to display.
34dc7c2f
BB		 2750 * -s Specify sort columns, descending order.
2751 * -S Specify sort columns, ascending order.
2752 *
2753 * When given no arguments, lists all filesystems in the system.
2754 * Otherwise, list the specified datasets, optionally recursing down them if
2755 * '-r' is specified.
2756 */
2757typedef struct list_cbdata {
2758 boolean_t cb_first;
2759 boolean_t cb_scripted;
2760 zprop_list_t *cb_proplist;
2761} list_cbdata_t;
2762
2763/*
2764 * Given a list of columns to display, output appropriate headers for each one.
2765 */
2766static void
2767print_header(zprop_list_t *pl)
2768{
2769 char headerbuf[ZFS_MAXPROPLEN];
2770 const char *header;
2771 int i;
2772 boolean_t first = B_TRUE;
2773 boolean_t right_justify;
2774
2775 for (; pl != NULL; pl = pl->pl_next) {
2776 if (!first) {
2777 (void) printf(" ");
2778 } else {
2779 first = B_FALSE;
2780 }
2781
2782 right_justify = B_FALSE;
2783 if (pl->pl_prop != ZPROP_INVAL) {
2784 header = zfs_prop_column_name(pl->pl_prop);
2785 right_justify = zfs_prop_align_right(pl->pl_prop);
2786 } else {
2787 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2788 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2789 headerbuf[i] = '\0';
2790 header = headerbuf;
2791 }
2792
2793 if (pl->pl_next == NULL && !right_justify)
2794 (void) printf("%s", header);
2795 else if (right_justify)
b8864a23 2796 (void) printf("%*s", (int)pl->pl_width, header);
34dc7c2f 2797 else
b8864a23 2798 (void) printf("%-*s", (int)pl->pl_width, header);
34dc7c2f
BB		 2799 }
2800
2801 (void) printf("\n");
2802}
2803
2804/*
2805 * Given a dataset and a list of fields, print out all the properties according
2806 * to the described layout.
2807 */
2808static void
2809print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted)
2810{
2811 boolean_t first = B_TRUE;
2812 char property[ZFS_MAXPROPLEN];
2813 nvlist_t *userprops = zfs_get_user_props(zhp);
2814 nvlist_t *propval;
2815 char *propstr;
2816 boolean_t right_justify;
2817 int width;
2818
2819 for (; pl != NULL; pl = pl->pl_next) {
2820 if (!first) {
2821 if (scripted)
2822 (void) printf("\t");
2823 else
2824 (void) printf(" ");
2825 } else {
2826 first = B_FALSE;
2827 }
2828
0cee2406
PJD		 2829 if (pl->pl_prop == ZFS_PROP_NAME) {
2830 (void) strlcpy(property, zfs_get_name(zhp),
2831 sizeof(property));
2832 propstr = property;
2833 right_justify = zfs_prop_align_right(pl->pl_prop);
2834 } else if (pl->pl_prop != ZPROP_INVAL) {
34dc7c2f
BB		 2835 if (zfs_prop_get(zhp, pl->pl_prop, property,
2836 sizeof (property), NULL, NULL, 0, B_FALSE) != 0)
2837 propstr = "-";
2838 else
2839 propstr = property;
2840
2841 right_justify = zfs_prop_align_right(pl->pl_prop);
9babb374
BB		 2842 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
2843 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
2844 property, sizeof (property), B_FALSE) != 0)
2845 propstr = "-";
2846 else
2847 propstr = property;
2848 right_justify = B_TRUE;
330d06f9
MA		 2849 } else if (zfs_prop_written(pl->pl_user_prop)) {
2850 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
2851 property, sizeof (property), B_FALSE) != 0)
2852 propstr = "-";
2853 else
2854 propstr = property;
2855 right_justify = B_TRUE;
34dc7c2f
BB		 2856 } else {
2857 if (nvlist_lookup_nvlist(userprops,
2858 pl->pl_user_prop, &propval) != 0)
2859 propstr = "-";
2860 else
2861 verify(nvlist_lookup_string(propval,
2862 ZPROP_VALUE, &propstr) == 0);
9babb374 2863 right_justify = B_FALSE;
34dc7c2f
BB		 2864 }
2865
2866 width = pl->pl_width;
2867
2868 /*
2869 * If this is being called in scripted mode, or if this is the
2870 * last column and it is left-justified, don't include a width
2871 * format specifier.
2872 */
2873 if (scripted || (pl->pl_next == NULL && !right_justify))
2874 (void) printf("%s", propstr);
2875 else if (right_justify)
2876 (void) printf("%*s", width, propstr);
2877 else
2878 (void) printf("%-*s", width, propstr);
2879 }
2880
2881 (void) printf("\n");
2882}
2883
2884/*
2885 * Generic callback function to list a dataset or snapshot.
2886 */
2887static int
2888list_callback(zfs_handle_t *zhp, void *data)
2889{
2890 list_cbdata_t *cbp = data;
2891
2892 if (cbp->cb_first) {
2893 if (!cbp->cb_scripted)
2894 print_header(cbp->cb_proplist);
2895 cbp->cb_first = B_FALSE;
2896 }
2897
2898 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted);
2899
2900 return (0);
2901}
2902
2903static int
2904zfs_do_list(int argc, char **argv)
2905{
2906 int c;
34dc7c2f
BB		 2907 boolean_t scripted = B_FALSE;
2908 static char default_fields[] =
2909 "name,used,available,referenced,mountpoint";
d164b209 2910 int types = ZFS_TYPE_DATASET;
b128c09f 2911 boolean_t types_specified = B_FALSE;
34dc7c2f 2912 char *fields = NULL;
34dc7c2f
BB		 2913 list_cbdata_t cb = { 0 };
2914 char *value;
9babb374 2915 int limit = 0;
ad60af8e 2916 int ret = 0;
34dc7c2f 2917 zfs_sort_column_t *sortcol = NULL;
b128c09f 2918 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
34dc7c2f
BB		 2919
2920 /* check options */
9babb374 2921 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) {
34dc7c2f
BB		 2922 switch (c) {
2923 case 'o':
2924 fields = optarg;
2925 break;
9babb374
BB		 2926 case 'd':
2927 limit = parse_depth(optarg, &flags);
2928 break;
34dc7c2f 2929 case 'r':
b128c09f 2930 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 2931 break;
2932 case 'H':
2933 scripted = B_TRUE;
2934 break;
2935 case 's':
2936 if (zfs_add_sort_column(&sortcol, optarg,
2937 B_FALSE) != 0) {
2938 (void) fprintf(stderr,
2939 gettext("invalid property '%s'\n"), optarg);
2940 usage(B_FALSE);
2941 }
2942 break;
2943 case 'S':
2944 if (zfs_add_sort_column(&sortcol, optarg,
2945 B_TRUE) != 0) {
2946 (void) fprintf(stderr,
2947 gettext("invalid property '%s'\n"), optarg);
2948 usage(B_FALSE);
2949 }
2950 break;
2951 case 't':
2952 types = 0;
b128c09f
BB		 2953 types_specified = B_TRUE;
2954 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
34dc7c2f 2955 while (*optarg != '\0') {
b128c09f 2956 static char *type_subopts[] = { "filesystem",
cf81b00a 2957 "volume", "snapshot", "snap", "all", NULL };
b128c09f 2958
34dc7c2f
BB		 2959 switch (getsubopt(&optarg, type_subopts,
2960 &value)) {
2961 case 0:
2962 types |= ZFS_TYPE_FILESYSTEM;
2963 break;
2964 case 1:
2965 types |= ZFS_TYPE_VOLUME;
2966 break;
2967 case 2:
cf81b00a 2968 case 3:
34dc7c2f
BB		 2969 types |= ZFS_TYPE_SNAPSHOT;
2970 break;
cf81b00a 2971 case 4:
b128c09f
BB		 2972 types = ZFS_TYPE_DATASET;
2973 break;
2974
34dc7c2f
BB		 2975 default:
2976 (void) fprintf(stderr,
2977 gettext("invalid type '%s'\n"),
2978 value);
2979 usage(B_FALSE);
2980 }
2981 }
2982 break;
2983 case ':':
2984 (void) fprintf(stderr, gettext("missing argument for "
2985 "'%c' option\n"), optopt);
2986 usage(B_FALSE);
2987 break;
2988 case '?':
2989 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2990 optopt);
2991 usage(B_FALSE);
2992 }
2993 }
2994
2995 argc -= optind;
2996 argv += optind;
2997
2998 if (fields == NULL)
b128c09f
BB		 2999 fields = default_fields;
3000
0cee2406
PJD		 3001 /*
3002 * If we are only going to list snapshot names and sort by name,
3003 * then we can use faster version.
3004 */
3005 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3006 flags |= ZFS_ITER_SIMPLE;
3007
b128c09f
BB		 3008 /*
3009 * If "-o space" and no types were specified, don't display snapshots.
3010 */
3011 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3012 types &= ~ZFS_TYPE_SNAPSHOT;
34dc7c2f
BB		 3013
3014 /*
3015 * If the user specifies '-o all', the zprop_get_list() doesn't
3016 * normally include the name of the dataset. For 'zfs list', we always
3017 * want this property to be first.
3018 */
3019 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3020 != 0)
3021 usage(B_FALSE);
3022
3023 cb.cb_scripted = scripted;
3024 cb.cb_first = B_TRUE;
3025
b128c09f 3026 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
9babb374 3027 limit, list_callback, &cb);
34dc7c2f
BB		 3028
3029 zprop_free_list(cb.cb_proplist);
3030 zfs_free_sort_columns(sortcol);
3031
3032 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
42cb3819 3033 (void) fprintf(stderr, gettext("no datasets available\n"));
34dc7c2f
BB		 3034
3035 return (ret);
3036}
3037
3038/*
3039 * zfs rename <fs | snap | vol> <fs | snap | vol>
3040 * zfs rename -p <fs | vol> <fs | vol>
3041 * zfs rename -r <snap> <snap>
3042 *
3043 * Renames the given dataset to another of the same type.
3044 *
3045 * The '-p' flag creates all the non-existing ancestors of the target first.
3046 */
3047/* ARGSUSED */
3048static int
3049zfs_do_rename(int argc, char **argv)
3050{
3051 zfs_handle_t *zhp;
3052 int c;
ad60af8e 3053 int ret = 0;
34dc7c2f
BB		 3054 boolean_t recurse = B_FALSE;
3055 boolean_t parents = B_FALSE;
3056
3057 /* check options */
3058 while ((c = getopt(argc, argv, "pr")) != -1) {
3059 switch (c) {
3060 case 'p':
3061 parents = B_TRUE;
3062 break;
3063 case 'r':
3064 recurse = B_TRUE;
3065 break;
3066 case '?':
3067 default:
3068 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3069 optopt);
3070 usage(B_FALSE);
3071 }
3072 }
3073
3074 argc -= optind;
3075 argv += optind;
3076
3077 /* check number of arguments */
3078 if (argc < 1) {
3079 (void) fprintf(stderr, gettext("missing source dataset "
3080 "argument\n"));
3081 usage(B_FALSE);
3082 }
3083 if (argc < 2) {
3084 (void) fprintf(stderr, gettext("missing target dataset "
3085 "argument\n"));
3086 usage(B_FALSE);
3087 }
3088 if (argc > 2) {
3089 (void) fprintf(stderr, gettext("too many arguments\n"));
3090 usage(B_FALSE);
3091 }
3092
3093 if (recurse && parents) {
3094 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3095 "exclusive\n"));
3096 usage(B_FALSE);
3097 }
3098
3099 if (recurse && strchr(argv[0], '@') == 0) {
3100 (void) fprintf(stderr, gettext("source dataset for recursive "
3101 "rename must be a snapshot\n"));
3102 usage(B_FALSE);
3103 }
3104
3105 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3106 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3107 return (1);
3108
3109 /* If we were asked and the name looks good, try to create ancestors. */
3110 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3111 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3112 zfs_close(zhp);
3113 return (1);
3114 }
3115
3116 ret = (zfs_rename(zhp, argv[1], recurse) != 0);
3117
3118 zfs_close(zhp);
3119 return (ret);
3120}
3121
3122/*
3123 * zfs promote <fs>
3124 *
3125 * Promotes the given clone fs to be the parent
3126 */
3127/* ARGSUSED */
3128static int
3129zfs_do_promote(int argc, char **argv)
3130{
3131 zfs_handle_t *zhp;
ad60af8e 3132 int ret = 0;
34dc7c2f
BB		 3133
3134 /* check options */
3135 if (argc > 1 && argv[1][0] == '-') {
3136 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3137 argv[1][1]);
3138 usage(B_FALSE);
3139 }
3140
3141 /* check number of arguments */
3142 if (argc < 2) {
3143 (void) fprintf(stderr, gettext("missing clone filesystem"
3144 " argument\n"));
3145 usage(B_FALSE);
3146 }
3147 if (argc > 2) {
3148 (void) fprintf(stderr, gettext("too many arguments\n"));
3149 usage(B_FALSE);
3150 }
3151
3152 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3153 if (zhp == NULL)
3154 return (1);
3155
3156 ret = (zfs_promote(zhp) != 0);
3157
3158
3159 zfs_close(zhp);
3160 return (ret);
3161}
3162
3163/*
3164 * zfs rollback [-rRf] <snapshot>
3165 *
428870ff
BB		 3166 * -r Delete any intervening snapshots before doing rollback
3167 * -R Delete any snapshots and their clones
3168 * -f ignored for backwards compatability
34dc7c2f
BB		 3169 *
3170 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3171 * since then and making it the active dataset. If more recent snapshots exist,
3172 * the command will complain unless the '-r' flag is given.
3173 */
3174typedef struct rollback_cbdata {
3175 uint64_t cb_create;
3176 boolean_t cb_first;
3177 int cb_doclones;
3178 char *cb_target;
3179 int cb_error;
3180 boolean_t cb_recurse;
3181 boolean_t cb_dependent;
3182} rollback_cbdata_t;
3183
3184/*
3185 * Report any snapshots more recent than the one specified. Used when '-r' is
3186 * not specified. We reuse this same callback for the snapshot dependents - if
3187 * 'cb_dependent' is set, then this is a dependent and we should report it
3188 * without checking the transaction group.
3189 */
3190static int
3191rollback_check(zfs_handle_t *zhp, void *data)
3192{
3193 rollback_cbdata_t *cbp = data;
3194
3195 if (cbp->cb_doclones) {
3196 zfs_close(zhp);
3197 return (0);
3198 }
3199
3200 if (!cbp->cb_dependent) {
3201 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 &&
3202 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
3203 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) >
3204 cbp->cb_create) {
3205
3206 if (cbp->cb_first && !cbp->cb_recurse) {
3207 (void) fprintf(stderr, gettext("cannot "
3208 "rollback to '%s': more recent snapshots "
3209 "exist\n"),
3210 cbp->cb_target);
3211 (void) fprintf(stderr, gettext("use '-r' to "
3212 "force deletion of the following "
3213 "snapshots:\n"));
3214 cbp->cb_first = 0;
3215 cbp->cb_error = 1;
3216 }
3217
3218 if (cbp->cb_recurse) {
3219 cbp->cb_dependent = B_TRUE;
3220 if (zfs_iter_dependents(zhp, B_TRUE,
3221 rollback_check, cbp) != 0) {
3222 zfs_close(zhp);
3223 return (-1);
3224 }
3225 cbp->cb_dependent = B_FALSE;
3226 } else {
3227 (void) fprintf(stderr, "%s\n",
3228 zfs_get_name(zhp));
3229 }
3230 }
3231 } else {
3232 if (cbp->cb_first && cbp->cb_recurse) {
3233 (void) fprintf(stderr, gettext("cannot rollback to "
3234 "'%s': clones of previous snapshots exist\n"),
3235 cbp->cb_target);
3236 (void) fprintf(stderr, gettext("use '-R' to "
3237 "force deletion of the following clones and "
3238 "dependents:\n"));
3239 cbp->cb_first = 0;
3240 cbp->cb_error = 1;
3241 }
3242
3243 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3244 }
3245
3246 zfs_close(zhp);
3247 return (0);
3248}
3249
3250static int
3251zfs_do_rollback(int argc, char **argv)
3252{
ad60af8e 3253 int ret = 0;
34dc7c2f
BB		 3254 int c;
3255 boolean_t force = B_FALSE;
3256 rollback_cbdata_t cb = { 0 };
3257 zfs_handle_t *zhp, *snap;
3258 char parentname[ZFS_MAXNAMELEN];
3259 char *delim;
3260
3261 /* check options */
3262 while ((c = getopt(argc, argv, "rRf")) != -1) {
3263 switch (c) {
3264 case 'r':
3265 cb.cb_recurse = 1;
3266 break;
3267 case 'R':
3268 cb.cb_recurse = 1;
3269 cb.cb_doclones = 1;
3270 break;
3271 case 'f':
3272 force = B_TRUE;
3273 break;
3274 case '?':
3275 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3276 optopt);
3277 usage(B_FALSE);
3278 }
3279 }
3280
3281 argc -= optind;
3282 argv += optind;
3283
3284 /* check number of arguments */
3285 if (argc < 1) {
3286 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3287 usage(B_FALSE);
3288 }
3289 if (argc > 1) {
3290 (void) fprintf(stderr, gettext("too many arguments\n"));
3291 usage(B_FALSE);
3292 }
3293
3294 /* open the snapshot */
3295 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3296 return (1);
3297
3298 /* open the parent dataset */
3299 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3300 verify((delim = strrchr(parentname, '@')) != NULL);
3301 *delim = '\0';
3302 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3303 zfs_close(snap);
3304 return (1);
3305 }
3306
3307 /*
3308 * Check for more recent snapshots and/or clones based on the presence
3309 * of '-r' and '-R'.
3310 */
3311 cb.cb_target = argv[0];
3312 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3313 cb.cb_first = B_TRUE;
3314 cb.cb_error = 0;
3315 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0)
3316 goto out;
3317
3318 if ((ret = cb.cb_error) != 0)
3319 goto out;
3320
3321 /*
3322 * Rollback parent to the given snapshot.
3323 */
3324 ret = zfs_rollback(zhp, snap, force);
3325
3326out:
3327 zfs_close(snap);
3328 zfs_close(zhp);
3329
3330 if (ret == 0)
3331 return (0);
3332 else
3333 return (1);
3334}
3335
3336/*
3337 * zfs set property=value { fs | snap | vol } ...
3338 *
3339 * Sets the given property for all datasets specified on the command line.
3340 */
3341typedef struct set_cbdata {
3342 char *cb_propname;
3343 char *cb_value;
3344} set_cbdata_t;
3345
3346static int
3347set_callback(zfs_handle_t *zhp, void *data)
3348{
3349 set_cbdata_t *cbp = data;
3350
3351 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) {
3352 switch (libzfs_errno(g_zfs)) {
3353 case EZFS_MOUNTFAILED:
3354 (void) fprintf(stderr, gettext("property may be set "
3355 "but unable to remount filesystem\n"));
3356 break;
3357 case EZFS_SHARENFSFAILED:
3358 (void) fprintf(stderr, gettext("property may be set "
3359 "but unable to reshare filesystem\n"));
3360 break;
3361 }
3362 return (1);
3363 }
3364 return (0);
3365}
3366
3367static int
3368zfs_do_set(int argc, char **argv)
3369{
3370 set_cbdata_t cb;
ad60af8e 3371 int ret = 0;
34dc7c2f
BB		 3372
3373 /* check for options */
3374 if (argc > 1 && argv[1][0] == '-') {
3375 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3376 argv[1][1]);
3377 usage(B_FALSE);
3378 }
3379
3380 /* check number of arguments */
3381 if (argc < 2) {
3382 (void) fprintf(stderr, gettext("missing property=value "
3383 "argument\n"));
3384 usage(B_FALSE);
3385 }
3386 if (argc < 3) {
3387 (void) fprintf(stderr, gettext("missing dataset name\n"));
3388 usage(B_FALSE);
3389 }
3390
3391 /* validate property=value argument */
3392 cb.cb_propname = argv[1];
b128c09f
BB		 3393 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) ||
3394 (cb.cb_value[1] == '\0')) {
34dc7c2f
BB		 3395 (void) fprintf(stderr, gettext("missing value in "
3396 "property=value argument\n"));
3397 usage(B_FALSE);
3398 }
3399
3400 *cb.cb_value = '\0';
3401 cb.cb_value++;
3402
3403 if (*cb.cb_propname == '\0') {
3404 (void) fprintf(stderr,
3405 gettext("missing property in property=value argument\n"));
3406 usage(B_FALSE);
3407 }
3408
b8864a23 3409 ret = zfs_for_each(argc - 2, argv + 2, 0,
9babb374 3410 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb);
34dc7c2f
BB		 3411
3412 return (ret);
3413}
3414
3415/*
b128c09f 3416 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
34dc7c2f
BB		 3417 *
3418 * Creates a snapshot with the given name. While functionally equivalent to
3419 * 'zfs create', it is a separate command to differentiate intent.
3420 */
3421static int
3422zfs_do_snapshot(int argc, char **argv)
3423{
3424 boolean_t recursive = B_FALSE;
ad60af8e 3425 int ret = 0;
b8864a23 3426 signed char c;
b128c09f
BB		 3427 nvlist_t *props;
3428
428870ff
BB		 3429 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3430 nomem();
34dc7c2f
BB		 3431
3432 /* check options */
b128c09f 3433 while ((c = getopt(argc, argv, "ro:")) != -1) {
34dc7c2f 3434 switch (c) {
b128c09f
BB		 3435 case 'o':
3436 if (parseprop(props))
3437 return (1);
3438 break;
34dc7c2f
BB		 3439 case 'r':
3440 recursive = B_TRUE;
3441 break;
3442 case '?':
3443 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3444 optopt);
b128c09f 3445 goto usage;
34dc7c2f
BB		 3446 }
3447 }
3448
3449 argc -= optind;
3450 argv += optind;
3451
3452 /* check number of arguments */
3453 if (argc < 1) {
3454 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
b128c09f 3455 goto usage;
34dc7c2f
BB		 3456 }
3457 if (argc > 1) {
3458 (void) fprintf(stderr, gettext("too many arguments\n"));
b128c09f 3459 goto usage;
34dc7c2f
BB		 3460 }
3461
b128c09f
BB		 3462 ret = zfs_snapshot(g_zfs, argv[0], recursive, props);
3463 nvlist_free(props);
34dc7c2f
BB		 3464 if (ret && recursive)
3465 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3466 return (ret != 0);
b128c09f
BB		 3467
3468usage:
3469 nvlist_free(props);
3470 usage(B_FALSE);
3471 return (-1);
34dc7c2f
BB		 3472}
3473
3474/*
34dc7c2f
BB		 3475 * Send a backup stream to stdout.
3476 */
3477static int
3478zfs_do_send(int argc, char **argv)
3479{
3480 char *fromname = NULL;
3481 char *toname = NULL;
3482 char *cp;
3483 zfs_handle_t *zhp;
428870ff 3484 sendflags_t flags = { 0 };
34dc7c2f 3485 int c, err;
330d06f9 3486 nvlist_t *dbgnv = NULL;
428870ff 3487 boolean_t extraverbose = B_FALSE;
34dc7c2f
BB		 3488
3489 /* check options */
330d06f9 3490 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) {
34dc7c2f
BB		 3491 switch (c) {
3492 case 'i':
3493 if (fromname)
3494 usage(B_FALSE);
3495 fromname = optarg;
3496 break;
3497 case 'I':
3498 if (fromname)
3499 usage(B_FALSE);
3500 fromname = optarg;
428870ff 3501 flags.doall = B_TRUE;
34dc7c2f
BB		 3502 break;
3503 case 'R':
428870ff
BB		 3504 flags.replicate = B_TRUE;
3505 break;
3506 case 'p':
3507 flags.props = B_TRUE;
34dc7c2f 3508 break;
330d06f9
MA		 3509 case 'P':
3510 flags.parsable = B_TRUE;
3511 flags.verbose = B_TRUE;
3512 break;
34dc7c2f 3513 case 'v':
428870ff
BB		 3514 if (flags.verbose)
3515 extraverbose = B_TRUE;
3516 flags.verbose = B_TRUE;
3517 break;
3518 case 'D':
3519 flags.dedup = B_TRUE;
34dc7c2f 3520 break;
330d06f9
MA		 3521 case 'n':
3522 flags.dryrun = B_TRUE;
3523 break;
34dc7c2f
BB		 3524 case ':':
3525 (void) fprintf(stderr, gettext("missing argument for "
3526 "'%c' option\n"), optopt);
3527 usage(B_FALSE);
3528 break;
3529 case '?':
3530 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3531 optopt);
3532 usage(B_FALSE);
3533 }
3534 }
3535
3536 argc -= optind;
3537 argv += optind;
3538
3539 /* check number of arguments */
3540 if (argc < 1) {
3541 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3542 usage(B_FALSE);
3543 }
3544 if (argc > 1) {
3545 (void) fprintf(stderr, gettext("too many arguments\n"));
3546 usage(B_FALSE);
3547 }
3548
330d06f9 3549 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
34dc7c2f
BB		 3550 (void) fprintf(stderr,
3551 gettext("Error: Stream can not be written to a terminal.\n"
3552 "You must redirect standard output.\n"));
3553 return (1);
3554 }
3555
3556 cp = strchr(argv[0], '@');
3557 if (cp == NULL) {
3558 (void) fprintf(stderr,
3559 gettext("argument must be a snapshot\n"));
3560 usage(B_FALSE);
3561 }
0b7936d5
AS		 3562 *cp = '\0';
3563 toname = cp + 1;
3564 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3565 if (zhp == NULL)
3566 return (1);
3567
3568 /*
3569 * If they specified the full path to the snapshot, chop off
3570 * everything except the short name of the snapshot, but special
3571 * case if they specify the origin.
3572 */
3573 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3574 char origin[ZFS_MAXNAMELEN];
3575 zprop_source_t src;
3576
3577 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3578 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3579
3580 if (strcmp(origin, fromname) == 0) {
3581 fromname = NULL;
3582 flags.fromorigin = B_TRUE;
3583 } else {
3584 *cp = '\0';
3585 if (cp != fromname && strcmp(argv[0], fromname)) {
3586 (void) fprintf(stderr,
3587 gettext("incremental source must be "
3588 "in same filesystem\n"));
3589 usage(B_FALSE);
3590 }
3591 fromname = cp + 1;
3592 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3593 (void) fprintf(stderr,
3594 gettext("invalid incremental source\n"));
3595 usage(B_FALSE);
3596 }
3597 }
3598 }
3599
3600 if (flags.replicate && fromname == NULL)
3601 flags.doall = B_TRUE;
3602
330d06f9 3603 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
0b7936d5
AS		 3604 extraverbose ? &dbgnv : NULL);
3605
330d06f9 3606 if (extraverbose && dbgnv != NULL) {
0b7936d5
AS		 3607 /*
3608 * dump_nvlist prints to stdout, but that's been
3609 * redirected to a file. Make it print to stderr
3610 * instead.
3611 */
3612 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3613 dump_nvlist(dbgnv, 0);
3614 nvlist_free(dbgnv);
3615 }
3616 zfs_close(zhp);
3617
3618 return (err != 0);
3619}
3620
3621/*
3622 * zfs receive [-vnFu] [-d | -e] <fs@snap>
3623 *
3624 * Restore a backup stream from stdin.
3625 */
3626static int
3627zfs_do_receive(int argc, char **argv)
3628{
3629 int c, err;
3630 recvflags_t flags = { 0 };
3631
3632 /* check options */
3633 while ((c = getopt(argc, argv, ":denuvF")) != -1) {
3634 switch (c) {
3635 case 'd':
3636 flags.isprefix = B_TRUE;
3637 break;
3638 case 'e':
3639 flags.isprefix = B_TRUE;
3640 flags.istail = B_TRUE;
3641 break;
3642 case 'n':
3643 flags.dryrun = B_TRUE;
3644 break;
3645 case 'u':
3646 flags.nomount = B_TRUE;
3647 break;
3648 case 'v':
3649 flags.verbose = B_TRUE;
3650 break;
3651 case 'F':
3652 flags.force = B_TRUE;
3653 break;
3654 case ':':
3655 (void) fprintf(stderr, gettext("missing argument for "
3656 "'%c' option\n"), optopt);
3657 usage(B_FALSE);
3658 break;
3659 case '?':
3660 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3661 optopt);
3662 usage(B_FALSE);
3663 }
3664 }
3665
3666 argc -= optind;
3667 argv += optind;
3668
3669 /* check number of arguments */
3670 if (argc < 1) {
3671 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3672 usage(B_FALSE);
3673 }
3674 if (argc > 1) {
3675 (void) fprintf(stderr, gettext("too many arguments\n"));
3676 usage(B_FALSE);
3677 }
3678
3679 if (isatty(STDIN_FILENO)) {
3680 (void) fprintf(stderr,
3681 gettext("Error: Backup stream can not be read "
3682 "from a terminal.\n"
3683 "You must redirect standard input.\n"));
3684 return (1);
3685 }
3686
330d06f9 3687 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL);
0b7936d5
AS		 3688
3689 return (err != 0);
3690}
3691
3692/*
3693 * allow/unallow stuff
3694 */
3695/* copied from zfs/sys/dsl_deleg.h */
3696#define ZFS_DELEG_PERM_CREATE "create"
3697#define ZFS_DELEG_PERM_DESTROY "destroy"
3698#define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
3699#define ZFS_DELEG_PERM_ROLLBACK "rollback"
3700#define ZFS_DELEG_PERM_CLONE "clone"
3701#define ZFS_DELEG_PERM_PROMOTE "promote"
3702#define ZFS_DELEG_PERM_RENAME "rename"
3703#define ZFS_DELEG_PERM_MOUNT "mount"
3704#define ZFS_DELEG_PERM_SHARE "share"
3705#define ZFS_DELEG_PERM_SEND "send"
3706#define ZFS_DELEG_PERM_RECEIVE "receive"
3707#define ZFS_DELEG_PERM_ALLOW "allow"
3708#define ZFS_DELEG_PERM_USERPROP "userprop"
3709#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
3710#define ZFS_DELEG_PERM_USERQUOTA "userquota"
3711#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
3712#define ZFS_DELEG_PERM_USERUSED "userused"
3713#define ZFS_DELEG_PERM_GROUPUSED "groupused"
3714#define ZFS_DELEG_PERM_HOLD "hold"
3715#define ZFS_DELEG_PERM_RELEASE "release"
3716#define ZFS_DELEG_PERM_DIFF "diff"
3717
3718#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
3719
3720static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
3721 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
3722 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
3723 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
3724 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
3725 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
3726 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
3727 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
3728 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
3729 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
3730 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
3731 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
3732 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
3733 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
3734 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
3735 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
3736
3737 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
3738 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
3739 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
3740 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
3741 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
3742 { NULL, ZFS_DELEG_NOTE_NONE }
3743};
3744
3745/* permission structure */
3746typedef struct deleg_perm {
3747 zfs_deleg_who_type_t dp_who_type;
3748 const char *dp_name;
3749 boolean_t dp_local;
3750 boolean_t dp_descend;
3751} deleg_perm_t;
3752
3753/* */
3754typedef struct deleg_perm_node {
3755 deleg_perm_t dpn_perm;
3756
3757 uu_avl_node_t dpn_avl_node;
3758} deleg_perm_node_t;
3759
3760typedef struct fs_perm fs_perm_t;
3761
3762/* permissions set */
3763typedef struct who_perm {
3764 zfs_deleg_who_type_t who_type;
3765 const char *who_name; /* id */
3766 char who_ug_name[256]; /* user/group name */
3767 fs_perm_t *who_fsperm; /* uplink */
3768
3769 uu_avl_t *who_deleg_perm_avl; /* permissions */
3770} who_perm_t;
3771
3772/* */
3773typedef struct who_perm_node {
3774 who_perm_t who_perm;
3775 uu_avl_node_t who_avl_node;
3776} who_perm_node_t;
3777
3778typedef struct fs_perm_set fs_perm_set_t;
3779/* fs permissions */
3780struct fs_perm {
3781 const char *fsp_name;
3782
3783 uu_avl_t *fsp_sc_avl; /* sets,create */
3784 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
3785
3786 fs_perm_set_t *fsp_set; /* uplink */
3787};
3788
3789/* */
3790typedef struct fs_perm_node {
3791 fs_perm_t fspn_fsperm;
3792 uu_avl_t *fspn_avl;
3793
3794 uu_list_node_t fspn_list_node;
3795} fs_perm_node_t;
3796
3797/* top level structure */
3798struct fs_perm_set {
3799 uu_list_pool_t *fsps_list_pool;
3800 uu_list_t *fsps_list; /* list of fs_perms */
3801
3802 uu_avl_pool_t *fsps_named_set_avl_pool;
3803 uu_avl_pool_t *fsps_who_perm_avl_pool;
3804 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
3805};
3806
3807static inline const char *
3808deleg_perm_type(zfs_deleg_note_t note)
3809{
3810 /* subcommands */
3811 switch (note) {
3812 /* SUBCOMMANDS */
3813 /* OTHER */
3814 case ZFS_DELEG_NOTE_GROUPQUOTA:
3815 case ZFS_DELEG_NOTE_GROUPUSED:
3816 case ZFS_DELEG_NOTE_USERPROP:
3817 case ZFS_DELEG_NOTE_USERQUOTA:
3818 case ZFS_DELEG_NOTE_USERUSED:
3819 /* other */
3820 return (gettext("other"));
3821 default:
3822 return (gettext("subcommand"));
3823 }
3824}
3825
3826static int inline
3827who_type2weight(zfs_deleg_who_type_t who_type)
3828{
3829 int res;
3830 switch (who_type) {
3831 case ZFS_DELEG_NAMED_SET_SETS:
3832 case ZFS_DELEG_NAMED_SET:
3833 res = 0;
3834 break;
3835 case ZFS_DELEG_CREATE_SETS:
3836 case ZFS_DELEG_CREATE:
3837 res = 1;
3838 break;
3839 case ZFS_DELEG_USER_SETS:
3840 case ZFS_DELEG_USER:
3841 res = 2;
3842 break;
3843 case ZFS_DELEG_GROUP_SETS:
3844 case ZFS_DELEG_GROUP:
3845 res = 3;
3846 break;
3847 case ZFS_DELEG_EVERYONE_SETS:
3848 case ZFS_DELEG_EVERYONE:
3849 res = 4;
3850 break;
3851 default:
3852 res = -1;
3853 }
3854
3855 return (res);
3856}
3857
3858/* ARGSUSED */
3859static int
3860who_perm_compare(const void *larg, const void *rarg, void *unused)
3861{
3862 const who_perm_node_t *l = larg;
3863 const who_perm_node_t *r = rarg;
3864 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
3865 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
3866 int lweight = who_type2weight(ltype);
3867 int rweight = who_type2weight(rtype);
3868 int res = lweight - rweight;
3869 if (res == 0)
3870 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
3871 ZFS_MAX_DELEG_NAME-1);
3872
3873 if (res == 0)
3874 return (0);
3875 if (res > 0)
3876 return (1);
3877 else
3878 return (-1);
3879}
3880
3881/* ARGSUSED */
3882static int
3883deleg_perm_compare(const void *larg, const void *rarg, void *unused)
3884{
3885 const deleg_perm_node_t *l = larg;
3886 const deleg_perm_node_t *r = rarg;
3887 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
3888 ZFS_MAX_DELEG_NAME-1);
3889
3890 if (res == 0)
3891 return (0);
3892
3893 if (res > 0)
3894 return (1);
3895 else
3896 return (-1);
3897}
3898
3899static inline void
3900fs_perm_set_init(fs_perm_set_t *fspset)
3901{
3902 bzero(fspset, sizeof (fs_perm_set_t));
3903
3904 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
3905 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
3906 NULL, UU_DEFAULT)) == NULL)
3907 nomem();
3908 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
3909 UU_DEFAULT)) == NULL)
3910 nomem();
3911
3912 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
3913 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
3914 who_perm_node_t, who_avl_node), who_perm_compare,
3915 UU_DEFAULT)) == NULL)
3916 nomem();
3917
3918 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
3919 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
3920 who_perm_node_t, who_avl_node), who_perm_compare,
3921 UU_DEFAULT)) == NULL)
3922 nomem();
3923
3924 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
3925 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
3926 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
3927 == NULL)
3928 nomem();
3929}
3930
3931static inline void fs_perm_fini(fs_perm_t *);
3932static inline void who_perm_fini(who_perm_t *);
3933
3934static inline void
3935fs_perm_set_fini(fs_perm_set_t *fspset)
3936{
3937 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
3938
3939 while (node != NULL) {
3940 fs_perm_node_t *next_node =
3941 uu_list_next(fspset->fsps_list, node);
3942 fs_perm_t *fsperm = &node->fspn_fsperm;
3943 fs_perm_fini(fsperm);
3944 uu_list_remove(fspset->fsps_list, node);
3945 free(node);
3946 node = next_node;
3947 }
3948
3949 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
3950 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
3951 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
3952}
3953
3954static inline void
3955deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
3956 const char *name)
3957{
3958 deleg_perm->dp_who_type = type;
3959 deleg_perm->dp_name = name;
3960}
3961
3962static inline void
3963who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
3964 zfs_deleg_who_type_t type, const char *name)
3965{
3966 uu_avl_pool_t *pool;
3967 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
3968
3969 bzero(who_perm, sizeof (who_perm_t));
3970
3971 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
3972 UU_DEFAULT)) == NULL)
3973 nomem();
3974
3975 who_perm->who_type = type;
3976 who_perm->who_name = name;
3977 who_perm->who_fsperm = fsperm;
3978}
3979
3980static inline void
3981who_perm_fini(who_perm_t *who_perm)
3982{
3983 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
3984
3985 while (node != NULL) {
3986 deleg_perm_node_t *next_node =
3987 uu_avl_next(who_perm->who_deleg_perm_avl, node);
3988
3989 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
3990 free(node);
3991 node = next_node;
3992 }
3993
3994 uu_avl_destroy(who_perm->who_deleg_perm_avl);
3995}
3996
3997static inline void
3998fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
3999{
4000 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4001 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4002
4003 bzero(fsperm, sizeof (fs_perm_t));
4004
4005 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4006 == NULL)
4007 nomem();
4008
4009 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4010 == NULL)
4011 nomem();
4012
4013 fsperm->fsp_set = fspset;
4014 fsperm->fsp_name = fsname;
4015}
4016
4017static inline void
4018fs_perm_fini(fs_perm_t *fsperm)
4019{
4020 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4021 while (node != NULL) {
4022 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4023 node);
4024 who_perm_t *who_perm = &node->who_perm;
4025 who_perm_fini(who_perm);
4026 uu_avl_remove(fsperm->fsp_sc_avl, node);
4027 free(node);
4028 node = next_node;
4029 }
4030
4031 node = uu_avl_first(fsperm->fsp_uge_avl);
4032 while (node != NULL) {
4033 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4034 node);
4035 who_perm_t *who_perm = &node->who_perm;
4036 who_perm_fini(who_perm);
4037 uu_avl_remove(fsperm->fsp_uge_avl, node);
4038 free(node);
4039 node = next_node;
4040 }
4041
4042 uu_avl_destroy(fsperm->fsp_sc_avl);
4043 uu_avl_destroy(fsperm->fsp_uge_avl);
4044}
4045
4046static void inline
4047set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4048 zfs_deleg_who_type_t who_type, const char *name, char locality)
4049{
4050 uu_avl_index_t idx = 0;
4051
4052 deleg_perm_node_t *found_node = NULL;
4053 deleg_perm_t *deleg_perm = &node->dpn_perm;
4054
4055 deleg_perm_init(deleg_perm, who_type, name);
4056
4057 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4058 == NULL)
4059 uu_avl_insert(avl, node, idx);
4060 else {
4061 node = found_node;
4062 deleg_perm = &node->dpn_perm;
4063 }
4064
4065
4066 switch (locality) {
4067 case ZFS_DELEG_LOCAL:
4068 deleg_perm->dp_local = B_TRUE;
4069 break;
4070 case ZFS_DELEG_DESCENDENT:
4071 deleg_perm->dp_descend = B_TRUE;
4072 break;
4073 case ZFS_DELEG_NA:
4074 break;
4075 default:
4076 assert(B_FALSE); /* invalid locality */
4077 }
4078}
4079
4080static inline int
4081parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4082{
4083 nvpair_t *nvp = NULL;
4084 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4085 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4086 zfs_deleg_who_type_t who_type = who_perm->who_type;
4087
4088 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4089 const char *name = nvpair_name(nvp);
4090 data_type_t type = nvpair_type(nvp);
4091 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4092 deleg_perm_node_t *node =
4093 safe_malloc(sizeof (deleg_perm_node_t));
4094
4095 VERIFY(type == DATA_TYPE_BOOLEAN);
4096
4097 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4098 set_deleg_perm_node(avl, node, who_type, name, locality);
4099 }
4100
4101 return (0);
4102}
4103
4104static inline int
4105parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4106{
4107 nvpair_t *nvp = NULL;
4108 fs_perm_set_t *fspset = fsperm->fsp_set;
4109
4110 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4111 nvlist_t *nvl2 = NULL;
4112 const char *name = nvpair_name(nvp);
4113 uu_avl_t *avl = NULL;
4114 uu_avl_pool_t *avl_pool = NULL;
4115 zfs_deleg_who_type_t perm_type = name[0];
4116 char perm_locality = name[1];
4117 const char *perm_name = name + 3;
4118 boolean_t is_set = B_TRUE;
4119 who_perm_t *who_perm = NULL;
4120
4121 assert('$' == name[2]);
4122
4123 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4124 return (-1);
4125
4126 switch (perm_type) {
4127 case ZFS_DELEG_CREATE:
4128 case ZFS_DELEG_CREATE_SETS:
4129 case ZFS_DELEG_NAMED_SET:
4130 case ZFS_DELEG_NAMED_SET_SETS:
4131 avl_pool = fspset->fsps_named_set_avl_pool;
4132 avl = fsperm->fsp_sc_avl;
4133 break;
4134 case ZFS_DELEG_USER:
4135 case ZFS_DELEG_USER_SETS:
4136 case ZFS_DELEG_GROUP:
4137 case ZFS_DELEG_GROUP_SETS:
4138 case ZFS_DELEG_EVERYONE:
4139 case ZFS_DELEG_EVERYONE_SETS:
4140 avl_pool = fspset->fsps_who_perm_avl_pool;
4141 avl = fsperm->fsp_uge_avl;
4142 break;
4143 default:
4144 break;
4145 }
4146
4147 if (is_set) {
4148 who_perm_node_t *found_node = NULL;
4149 who_perm_node_t *node = safe_malloc(
4150 sizeof (who_perm_node_t));
4151 who_perm = &node->who_perm;
4152 uu_avl_index_t idx = 0;
4153
4154 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4155 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4156
4157 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4158 == NULL) {
4159 if (avl == fsperm->fsp_uge_avl) {
4160 uid_t rid = 0;
4161 struct passwd *p = NULL;
4162 struct group *g = NULL;
4163 const char *nice_name = NULL;
4164
4165 switch (perm_type) {
4166 case ZFS_DELEG_USER_SETS:
4167 case ZFS_DELEG_USER:
4168 rid = atoi(perm_name);
4169 p = getpwuid(rid);
4170 if (p)
4171 nice_name = p->pw_name;
4172 break;
4173 case ZFS_DELEG_GROUP_SETS:
4174 case ZFS_DELEG_GROUP:
4175 rid = atoi(perm_name);
4176 g = getgrgid(rid);
4177 if (g)
4178 nice_name = g->gr_name;
4179 break;
4180 default:
4181 break;
4182 }
4183
4184 if (nice_name != NULL)
4185 (void) strlcpy(
4186 node->who_perm.who_ug_name,
4187 nice_name, 256);
4188 }
4189
4190 uu_avl_insert(avl, node, idx);
4191 } else {
4192 node = found_node;
4193 who_perm = &node->who_perm;
4194 }
4195 }
4196
4197 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4198 }
4199
4200 return (0);
4201}
4202
4203static inline int
4204parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4205{
4206 nvpair_t *nvp = NULL;
4207 uu_avl_index_t idx = 0;
4208
4209 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4210 nvlist_t *nvl2 = NULL;
4211 const char *fsname = nvpair_name(nvp);
4212 data_type_t type = nvpair_type(nvp);
4213 fs_perm_t *fsperm = NULL;
4214 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4215 if (node == NULL)
4216 nomem();
4217
4218 fsperm = &node->fspn_fsperm;
4219
4220 VERIFY(DATA_TYPE_NVLIST == type);
4221
4222 uu_list_node_init(node, &node->fspn_list_node,
4223 fspset->fsps_list_pool);
4224
4225 idx = uu_list_numnodes(fspset->fsps_list);
4226 fs_perm_init(fsperm, fspset, fsname);
4227
4228 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4229 return (-1);
4230
4231 (void) parse_fs_perm(fsperm, nvl2);
4232
4233 uu_list_insert(fspset->fsps_list, node, idx);
4234 }
4235
4236 return (0);
4237}
4238
4239static inline const char *
4240deleg_perm_comment(zfs_deleg_note_t note)
4241{
4242 const char *str = "";
4243
4244 /* subcommands */
4245 switch (note) {
4246 /* SUBCOMMANDS */
4247 case ZFS_DELEG_NOTE_ALLOW:
4248 str = gettext("Must also have the permission that is being"
4249 "\n\t\t\t\tallowed");
4250 break;
4251 case ZFS_DELEG_NOTE_CLONE:
4252 str = gettext("Must also have the 'create' ability and 'mount'"
4253 "\n\t\t\t\tability in the origin file system");
4254 break;
4255 case ZFS_DELEG_NOTE_CREATE:
4256 str = gettext("Must also have the 'mount' ability");
4257 break;
4258 case ZFS_DELEG_NOTE_DESTROY:
4259 str = gettext("Must also have the 'mount' ability");
4260 break;
4261 case ZFS_DELEG_NOTE_DIFF:
4262 str = gettext("Allows lookup of paths within a dataset;"
4263 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4264 "\n\t\t\t\tin order to use zfs diff");
4265 break;
4266 case ZFS_DELEG_NOTE_HOLD:
4267 str = gettext("Allows adding a user hold to a snapshot");
4268 break;
4269 case ZFS_DELEG_NOTE_MOUNT:
4270 str = gettext("Allows mount/umount of ZFS datasets");
4271 break;
4272 case ZFS_DELEG_NOTE_PROMOTE:
4273 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4274 " 'promote' ability in the origin file system");
4275 break;
4276 case ZFS_DELEG_NOTE_RECEIVE:
4277 str = gettext("Must also have the 'mount' and 'create'"
4278 " ability");
4279 break;
4280 case ZFS_DELEG_NOTE_RELEASE:
4281 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4282 "might destroy the snapshot");
4283 break;
4284 case ZFS_DELEG_NOTE_RENAME:
4285 str = gettext("Must also have the 'mount' and 'create'"
4286 "\n\t\t\t\tability in the new parent");
4287 break;
4288 case ZFS_DELEG_NOTE_ROLLBACK:
4289 str = gettext("");
4290 break;
4291 case ZFS_DELEG_NOTE_SEND:
4292 str = gettext("");
4293 break;
4294 case ZFS_DELEG_NOTE_SHARE:
4295 str = gettext("Allows sharing file systems over NFS or SMB"
4296 "\n\t\t\t\tprotocols");
4297 break;
4298 case ZFS_DELEG_NOTE_SNAPSHOT:
4299 str = gettext("");
4300 break;
4301/*
4302 * case ZFS_DELEG_NOTE_VSCAN:
4303 * str = gettext("");
4304 * break;
4305 */
4306 /* OTHER */
4307 case ZFS_DELEG_NOTE_GROUPQUOTA:
4308 str = gettext("Allows accessing any groupquota@... property");
4309 break;
4310 case ZFS_DELEG_NOTE_GROUPUSED:
4311 str = gettext("Allows reading any groupused@... property");
4312 break;
4313 case ZFS_DELEG_NOTE_USERPROP:
4314 str = gettext("Allows changing any user property");
4315 break;
4316 case ZFS_DELEG_NOTE_USERQUOTA:
4317 str = gettext("Allows accessing any userquota@... property");
4318 break;
4319 case ZFS_DELEG_NOTE_USERUSED:
4320 str = gettext("Allows reading any userused@... property");
4321 break;
4322 /* other */
4323 default:
4324 str = "";
4325 }
4326
4327 return (str);
4328}
4329
4330struct allow_opts {
4331 boolean_t local;
4332 boolean_t descend;
4333 boolean_t user;
4334 boolean_t group;
4335 boolean_t everyone;
4336 boolean_t create;
4337 boolean_t set;
4338 boolean_t recursive; /* unallow only */
4339 boolean_t prt_usage;
4340
4341 boolean_t prt_perms;
4342 char *who;
4343 char *perms;
4344 const char *dataset;
4345};
4346
4347static inline int
4348prop_cmp(const void *a, const void *b)
4349{
4350 const char *str1 = *(const char **)a;
4351 const char *str2 = *(const char **)b;
4352 return (strcmp(str1, str2));
4353}
4354
4355static void
4356allow_usage(boolean_t un, boolean_t requested, const char *msg)
4357{
4358 const char *opt_desc[] = {
4359 "-h", gettext("show this help message and exit"),
4360 "-l", gettext("set permission locally"),
4361 "-d", gettext("set permission for descents"),
4362 "-u", gettext("set permission for user"),
4363 "-g", gettext("set permission for group"),
4364 "-e", gettext("set permission for everyone"),
4365 "-c", gettext("set create time permission"),
4366 "-s", gettext("define permission set"),
4367 /* unallow only */
4368 "-r", gettext("remove permissions recursively"),
4369 };
4370 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4371 size_t allow_size = unallow_size - 2;
4372 const char *props[ZFS_NUM_PROPS];
4373 int i;
4374 size_t count = 0;
4375 FILE *fp = requested ? stdout : stderr;
4376 zprop_desc_t *pdtbl = zfs_prop_get_table();
4377 const char *fmt = gettext("%-16s %-14s\t%s\n");
4378
4379 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4380 HELP_ALLOW));
4381 (void) fprintf(fp, gettext("Options:\n"));
4382 for (i = 0; i < (un ? unallow_size : allow_size); i++) {
4383 const char *opt = opt_desc[i++];
4384 const char *optdsc = opt_desc[i];
4385 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4386 }
4387
4388 (void) fprintf(fp, gettext("\nThe following permissions are "
4389 "supported:\n\n"));
4390 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4391 gettext("NOTES"));
4392 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4393 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4394 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4395 const char *perm_type = deleg_perm_type(perm_note);
4396 const char *perm_comment = deleg_perm_comment(perm_note);
4397 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4398 }
4399
4400 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4401 zprop_desc_t *pd = &pdtbl[i];
4402 if (pd->pd_visible != B_TRUE)
4403 continue;
4404
4405 if (pd->pd_attr == PROP_READONLY)
4406 continue;
4407
4408 props[count++] = pd->pd_name;
4409 }
4410 props[count] = NULL;
4411
4412 qsort(props, count, sizeof (char *), prop_cmp);
4413
4414 for (i = 0; i < count; i++)
4415 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4416
4417 if (msg != NULL)
4418 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4419
4420 exit(requested ? 0 : 2);
4421}
4422
4423static inline const char *
4424munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4425 char **permsp)
4426{
4427 if (un && argc == expected_argc - 1)
4428 *permsp = NULL;
4429 else if (argc == expected_argc)
4430 *permsp = argv[argc - 2];
4431 else
4432 allow_usage(un, B_FALSE,
4433 gettext("wrong number of parameters\n"));
4434
4435 return (argv[argc - 1]);
4436}
4437
4438static void
4439parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4440{
4441 int uge_sum = opts->user + opts->group + opts->everyone;
4442 int csuge_sum = opts->create + opts->set + uge_sum;
4443 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4444 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4445
4446 if (uge_sum > 1)
4447 allow_usage(un, B_FALSE,
4448 gettext("-u, -g, and -e are mutually exclusive\n"));
4449
4450 if (opts->prt_usage) {
4451 if (argc == 0 && all_sum == 0)
4452 allow_usage(un, B_TRUE, NULL);
4453 else
4454 usage(B_FALSE);
4455 }
4456
4457 if (opts->set) {
4458 if (csuge_sum > 1)
4459 allow_usage(un, B_FALSE,
4460 gettext("invalid options combined with -s\n"));
4461
4462 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4463 if (argv[0][0] != '@')
4464 allow_usage(un, B_FALSE,
4465 gettext("invalid set name: missing '@' prefix\n"));
4466 opts->who = argv[0];
4467 } else if (opts->create) {
4468 if (ldcsuge_sum > 1)
4469 allow_usage(un, B_FALSE,
4470 gettext("invalid options combined with -c\n"));
4471 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4472 } else if (opts->everyone) {
4473 if (csuge_sum > 1)
4474 allow_usage(un, B_FALSE,
4475 gettext("invalid options combined with -e\n"));
4476 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4477 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4478 == 0) {
4479 opts->everyone = B_TRUE;
4480 argc--;
4481 argv++;
4482 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
79e72243 4483 } else if (argc == 1 && !un) {
0b7936d5
AS		 4484 opts->prt_perms = B_TRUE;
4485 opts->dataset = argv[argc-1];
4486 } else {
4487 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4488 opts->who = argv[0];
4489 }
4490
4491 if (!opts->local && !opts->descend) {
4492 opts->local = B_TRUE;
4493 opts->descend = B_TRUE;
4494 }
4495}
4496
4497static void
4498store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4499 const char *who, char *perms, nvlist_t *top_nvl)
4500{
4501 int i;
4502 char ld[2] = { '\0', '\0' };
4503 char who_buf[ZFS_MAXNAMELEN+32];
4504 char base_type = ZFS_DELEG_WHO_UNKNOWN;
4505 char set_type = ZFS_DELEG_WHO_UNKNOWN;
4506 nvlist_t *base_nvl = NULL;
4507 nvlist_t *set_nvl = NULL;
4508 nvlist_t *nvl;
4509
4510 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4511 nomem();
4512 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4513 nomem();
4514
4515 switch (type) {
4516 case ZFS_DELEG_NAMED_SET_SETS:
4517 case ZFS_DELEG_NAMED_SET:
4518 set_type = ZFS_DELEG_NAMED_SET_SETS;
4519 base_type = ZFS_DELEG_NAMED_SET;
4520 ld[0] = ZFS_DELEG_NA;
4521 break;
4522 case ZFS_DELEG_CREATE_SETS:
4523 case ZFS_DELEG_CREATE:
4524 set_type = ZFS_DELEG_CREATE_SETS;
4525 base_type = ZFS_DELEG_CREATE;
4526 ld[0] = ZFS_DELEG_NA;
4527 break;
4528 case ZFS_DELEG_USER_SETS:
4529 case ZFS_DELEG_USER:
4530 set_type = ZFS_DELEG_USER_SETS;
4531 base_type = ZFS_DELEG_USER;
4532 if (local)
4533 ld[0] = ZFS_DELEG_LOCAL;
4534 if (descend)
4535 ld[1] = ZFS_DELEG_DESCENDENT;
4536 break;
4537 case ZFS_DELEG_GROUP_SETS:
4538 case ZFS_DELEG_GROUP:
4539 set_type = ZFS_DELEG_GROUP_SETS;
4540 base_type = ZFS_DELEG_GROUP;
4541 if (local)
4542 ld[0] = ZFS_DELEG_LOCAL;
4543 if (descend)
4544 ld[1] = ZFS_DELEG_DESCENDENT;
4545 break;
4546 case ZFS_DELEG_EVERYONE_SETS:
4547 case ZFS_DELEG_EVERYONE:
4548 set_type = ZFS_DELEG_EVERYONE_SETS;
4549 base_type = ZFS_DELEG_EVERYONE;
4550 if (local)
4551 ld[0] = ZFS_DELEG_LOCAL;
4552 if (descend)
4553 ld[1] = ZFS_DELEG_DESCENDENT;
4554 default:
4555 break;
4556 }
4557
4558 if (perms != NULL) {
4559 char *curr = perms;
4560 char *end = curr + strlen(perms);
4561
4562 while (curr < end) {
4563 char *delim = strchr(curr, ',');
4564 if (delim == NULL)
4565 delim = end;
4566 else
4567 *delim = '\0';
4568
4569 if (curr[0] == '@')
4570 nvl = set_nvl;
4571 else
4572 nvl = base_nvl;
4573
4574 (void) nvlist_add_boolean(nvl, curr);
4575 if (delim != end)
4576 *delim = ',';
4577 curr = delim + 1;
4578 }
4579
4580 for (i = 0; i < 2; i++) {
4581 char locality = ld[i];
4582 if (locality == 0)
4583 continue;
4584
4585 if (!nvlist_empty(base_nvl)) {
4586 if (who != NULL)
4587 (void) snprintf(who_buf,
4588 sizeof (who_buf), "%c%c$%s",
4589 base_type, locality, who);
4590 else
4591 (void) snprintf(who_buf,
4592 sizeof (who_buf), "%c%c$",
4593 base_type, locality);
4594
4595 (void) nvlist_add_nvlist(top_nvl, who_buf,
4596 base_nvl);
4597 }
4598
4599
4600 if (!nvlist_empty(set_nvl)) {
4601 if (who != NULL)
4602 (void) snprintf(who_buf,
4603 sizeof (who_buf), "%c%c$%s",
4604 set_type, locality, who);
4605 else
4606 (void) snprintf(who_buf,
4607 sizeof (who_buf), "%c%c$",
4608 set_type, locality);
4609
4610 (void) nvlist_add_nvlist(top_nvl, who_buf,
4611 set_nvl);
4612 }
4613 }
4614 } else {
4615 for (i = 0; i < 2; i++) {
4616 char locality = ld[i];
4617 if (locality == 0)
4618 continue;
4619
4620 if (who != NULL)
4621 (void) snprintf(who_buf, sizeof (who_buf),
4622 "%c%c$%s", base_type, locality, who);
4623 else
4624 (void) snprintf(who_buf, sizeof (who_buf),
4625 "%c%c$", base_type, locality);
4626 (void) nvlist_add_boolean(top_nvl, who_buf);
4627
4628 if (who != NULL)
4629 (void) snprintf(who_buf, sizeof (who_buf),
4630 "%c%c$%s", set_type, locality, who);
4631 else
4632 (void) snprintf(who_buf, sizeof (who_buf),
4633 "%c%c$", set_type, locality);
4634 (void) nvlist_add_boolean(top_nvl, who_buf);
4635 }
4636 }
4637}
4638
4639static int
4640construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
4641{
4642 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
4643 nomem();
4644
4645 if (opts->set) {
4646 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
4647 opts->descend, opts->who, opts->perms, *nvlp);
4648 } else if (opts->create) {
4649 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
4650 opts->descend, NULL, opts->perms, *nvlp);
4651 } else if (opts->everyone) {
4652 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
4653 opts->descend, NULL, opts->perms, *nvlp);
4654 } else {
4655 char *curr = opts->who;
4656 char *end = curr + strlen(curr);
4657
4658 while (curr < end) {
4659 const char *who;
4c069d34 4660 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
0b7936d5
AS		 4661 char *endch;
4662 char *delim = strchr(curr, ',');
4663 char errbuf[256];
4664 char id[64];
4665 struct passwd *p = NULL;
4666 struct group *g = NULL;
4667
4668 uid_t rid;
4669 if (delim == NULL)
4670 delim = end;
4671 else
4672 *delim = '\0';
4673
4674 rid = (uid_t)strtol(curr, &endch, 0);
4675 if (opts->user) {
4676 who_type = ZFS_DELEG_USER;
4677 if (*endch != '\0')
4678 p = getpwnam(curr);
4679 else
4680 p = getpwuid(rid);
4681
4682 if (p != NULL)
4683 rid = p->pw_uid;
4684 else {
4685 (void) snprintf(errbuf, 256, gettext(
4686 "invalid user %s"), curr);
4687 allow_usage(un, B_TRUE, errbuf);
4688 }
4689 } else if (opts->group) {
4690 who_type = ZFS_DELEG_GROUP;
4691 if (*endch != '\0')
4692 g = getgrnam(curr);
4693 else
4694 g = getgrgid(rid);
4695
4696 if (g != NULL)
4697 rid = g->gr_gid;
4698 else {
4699 (void) snprintf(errbuf, 256, gettext(
4700 "invalid group %s"), curr);
4701 allow_usage(un, B_TRUE, errbuf);
4702 }
4703 } else {
4704 if (*endch != '\0') {
4705 p = getpwnam(curr);
4706 } else {
4707 p = getpwuid(rid);
4708 }
4709
4710 if (p == NULL) {
4711 if (*endch != '\0') {
4712 g = getgrnam(curr);
4713 } else {
4714 g = getgrgid(rid);
4715 }
4716 }
4717
4718 if (p != NULL) {
4719 who_type = ZFS_DELEG_USER;
4720 rid = p->pw_uid;
4721 } else if (g != NULL) {
4722 who_type = ZFS_DELEG_GROUP;
4723 rid = g->gr_gid;
4724 } else {
4725 (void) snprintf(errbuf, 256, gettext(
4726 "invalid user/group %s"), curr);
4727 allow_usage(un, B_TRUE, errbuf);
4728 }
4729 }
4730
4731 (void) sprintf(id, "%u", rid);
4732 who = id;
4733
4734 store_allow_perm(who_type, opts->local,
4735 opts->descend, who, opts->perms, *nvlp);
4736 curr = delim + 1;
4737 }
4738 }
4739
4740 return (0);
4741}
4742
4743static void
4744print_set_creat_perms(uu_avl_t *who_avl)
4745{
4746 const char *sc_title[] = {
4747 gettext("Permission sets:\n"),
4748 gettext("Create time permissions:\n"),
4749 NULL
4750 };
4751 const char **title_ptr = sc_title;
4752 who_perm_node_t *who_node = NULL;
4753 int prev_weight = -1;
4754
4755 for (who_node = uu_avl_first(who_avl); who_node != NULL;
4756 who_node = uu_avl_next(who_avl, who_node)) {
4757 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4758 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4759 const char *who_name = who_node->who_perm.who_name;
4760 int weight = who_type2weight(who_type);
4761 boolean_t first = B_TRUE;
4762 deleg_perm_node_t *deleg_node;
4763
4764 if (prev_weight != weight) {
29b35200 4765 (void) printf("%s", *title_ptr++);
0b7936d5
AS		 4766 prev_weight = weight;
4767 }
4768
4769 if (who_name == NULL || strnlen(who_name, 1) == 0)
4770 (void) printf("\t");
4771 else
4772 (void) printf("\t%s ", who_name);
4773
4774 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
4775 deleg_node = uu_avl_next(avl, deleg_node)) {
4776 if (first) {
4777 (void) printf("%s",
4778 deleg_node->dpn_perm.dp_name);
4779 first = B_FALSE;
4780 } else
4781 (void) printf(",%s",
4782 deleg_node->dpn_perm.dp_name);
4783 }
4784
4785 (void) printf("\n");
4786 }
4787}
34dc7c2f 4788
0b7936d5
AS		 4789static void inline
4790print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
4791 const char *title)
4792{
4793 who_perm_node_t *who_node = NULL;
4794 boolean_t prt_title = B_TRUE;
4795 uu_avl_walk_t *walk;
34dc7c2f 4796
0b7936d5
AS		 4797 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
4798 nomem();
34dc7c2f 4799
0b7936d5
AS		 4800 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
4801 const char *who_name = who_node->who_perm.who_name;
4802 const char *nice_who_name = who_node->who_perm.who_ug_name;
4803 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4804 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4805 char delim = ' ';
4806 deleg_perm_node_t *deleg_node;
4807 boolean_t prt_who = B_TRUE;
4808
4809 for (deleg_node = uu_avl_first(avl);
4810 deleg_node != NULL;
4811 deleg_node = uu_avl_next(avl, deleg_node)) {
4812 if (local != deleg_node->dpn_perm.dp_local ||
4813 descend != deleg_node->dpn_perm.dp_descend)
4814 continue;
4815
4816 if (prt_who) {
4817 const char *who = NULL;
4818 if (prt_title) {
4819 prt_title = B_FALSE;
29b35200 4820 (void) printf("%s", title);
0b7936d5
AS		 4821 }
4822
4823 switch (who_type) {
4824 case ZFS_DELEG_USER_SETS:
4825 case ZFS_DELEG_USER:
4826 who = gettext("user");
4827 if (nice_who_name)
4828 who_name = nice_who_name;
4829 break;
4830 case ZFS_DELEG_GROUP_SETS:
4831 case ZFS_DELEG_GROUP:
4832 who = gettext("group");
4833 if (nice_who_name)
4834 who_name = nice_who_name;
4835 break;
4836 case ZFS_DELEG_EVERYONE_SETS:
4837 case ZFS_DELEG_EVERYONE:
4838 who = gettext("everyone");
4839 who_name = NULL;
4840 default:
4841 break;
4842 }
4843
4844 prt_who = B_FALSE;
4845 if (who_name == NULL)
4846 (void) printf("\t%s", who);
4847 else
4848 (void) printf("\t%s %s", who, who_name);
34dc7c2f 4849 }
0b7936d5
AS		 4850
4851 (void) printf("%c%s", delim,
4852 deleg_node->dpn_perm.dp_name);
4853 delim = ',';
34dc7c2f 4854 }
34dc7c2f 4855
0b7936d5
AS		 4856 if (!prt_who)
4857 (void) printf("\n");
4858 }
428870ff 4859
0b7936d5
AS		 4860 uu_avl_walk_end(walk);
4861}
34dc7c2f 4862
0b7936d5
AS		 4863static void
4864print_fs_perms(fs_perm_set_t *fspset)
4865{
4866 fs_perm_node_t *node = NULL;
4867 char buf[ZFS_MAXNAMELEN+32];
4868 const char *dsname = buf;
4869
4870 for (node = uu_list_first(fspset->fsps_list); node != NULL;
4871 node = uu_list_next(fspset->fsps_list, node)) {
4872 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
4873 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
4874 int left = 0;
4875
4876 (void) snprintf(buf, ZFS_MAXNAMELEN+32,
4877 gettext("---- Permissions on %s "),
4878 node->fspn_fsperm.fsp_name);
29b35200 4879 (void) printf("%s", dsname);
0b7936d5
AS		 4880 left = 70 - strlen(buf);
4881 while (left-- > 0)
4882 (void) printf("-");
4883 (void) printf("\n");
4884
4885 print_set_creat_perms(sc_avl);
4886 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
4887 gettext("Local permissions:\n"));
4888 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
4889 gettext("Descendent permissions:\n"));
4890 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
4891 gettext("Local+Descendent permissions:\n"));
428870ff 4892 }
0b7936d5 4893}
34dc7c2f 4894
0b7936d5
AS		 4895static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
4896
4897struct deleg_perms {
4898 boolean_t un;
4899 nvlist_t *nvl;
4900};
4901
4902static int
4903set_deleg_perms(zfs_handle_t *zhp, void *data)
4904{
4905 struct deleg_perms *perms = (struct deleg_perms *)data;
4906 zfs_type_t zfs_type = zfs_get_type(zhp);
4907
4908 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
4909 return (0);
4910
4911 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
34dc7c2f
BB		 4912}
4913
34dc7c2f 4914static int
0b7936d5 4915zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
34dc7c2f 4916{
0b7936d5
AS		 4917 zfs_handle_t *zhp;
4918 nvlist_t *perm_nvl = NULL;
4919 nvlist_t *update_perm_nvl = NULL;
4920 int error = 1;
4921 int c;
4922 struct allow_opts opts = { 0 };
34dc7c2f 4923
0b7936d5
AS		 4924 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
4925
4926 /* check opts */
4927 while ((c = getopt(argc, argv, optstr)) != -1) {
34dc7c2f 4928 switch (c) {
0b7936d5
AS		 4929 case 'l':
4930 opts.local = B_TRUE;
4931 break;
34dc7c2f 4932 case 'd':
0b7936d5 4933 opts.descend = B_TRUE;
34dc7c2f 4934 break;
0b7936d5
AS		 4935 case 'u':
4936 opts.user = B_TRUE;
428870ff 4937 break;
0b7936d5
AS		 4938 case 'g':
4939 opts.group = B_TRUE;
34dc7c2f 4940 break;
0b7936d5
AS		 4941 case 'e':
4942 opts.everyone = B_TRUE;
d164b209 4943 break;
0b7936d5
AS		 4944 case 's':
4945 opts.set = B_TRUE;
34dc7c2f 4946 break;
0b7936d5
AS		 4947 case 'c':
4948 opts.create = B_TRUE;
4949 break;
4950 case 'r':
4951 opts.recursive = B_TRUE;
34dc7c2f
BB		 4952 break;
4953 case ':':
4954 (void) fprintf(stderr, gettext("missing argument for "
4955 "'%c' option\n"), optopt);
4956 usage(B_FALSE);
4957 break;
0b7936d5
AS		 4958 case 'h':
4959 opts.prt_usage = B_TRUE;
4960 break;
34dc7c2f
BB		 4961 case '?':
4962 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4963 optopt);
4964 usage(B_FALSE);
4965 }
4966 }
4967
4968 argc -= optind;
4969 argv += optind;
4970
0b7936d5
AS		 4971 /* check arguments */
4972 parse_allow_args(argc, argv, un, &opts);
4973
4974 /* try to open the dataset */
4975 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM))
4976 == NULL) {
4977 (void) fprintf(stderr, "Failed to open Dataset *%s*\n",
4978 opts.dataset);
4979 return (-1);
34dc7c2f 4980 }
0b7936d5
AS		 4981
4982 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
4983 goto cleanup2;
4984
4985 fs_perm_set_init(&fs_perm_set);
4986 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
4987 (void) fprintf(stderr, "Failed to parse fsacl permissionsn");
4988 goto cleanup1;
34dc7c2f
BB		 4989 }
4990
0b7936d5
AS		 4991 if (opts.prt_perms)
4992 print_fs_perms(&fs_perm_set);
4993 else {
4994 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
4995 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
4996 goto cleanup0;
4997
4998 if (un && opts.recursive) {
4999 struct deleg_perms data = { un, update_perm_nvl };
5000 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5001 &data) != 0)
5002 goto cleanup0;
5003 }
34dc7c2f
BB		 5004 }
5005
0b7936d5 5006 error = 0;
34dc7c2f 5007
0b7936d5
AS		 5008cleanup0:
5009 nvlist_free(perm_nvl);
5010 if (update_perm_nvl != NULL)
5011 nvlist_free(update_perm_nvl);
5012cleanup1:
5013 fs_perm_set_fini(&fs_perm_set);
5014cleanup2:
5015 zfs_close(zhp);
5016
5017 return (error);
5018}
5019
5020/*
5021 * zfs allow [-r] [-t] <tag> <snap> ...
5022 *
5023 * -r Recursively hold
5024 * -t Temporary hold (hidden option)
5025 *
5026 * Apply a user-hold with the given tag to the list of snapshots.
5027 */
5028static int
5029zfs_do_allow(int argc, char **argv)
5030{
5031 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5032}
5033
5034/*
5035 * zfs unallow [-r] [-t] <tag> <snap> ...
5036 *
5037 * -r Recursively hold
5038 * -t Temporary hold (hidden option)
5039 *
5040 * Apply a user-hold with the given tag to the list of snapshots.
5041 */
5042static int
5043zfs_do_unallow(int argc, char **argv)
5044{
5045 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
34dc7c2f
BB		 5046}
5047
45d1cae3
BB		 5048static int
5049zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5050{
5051 int errors = 0;
5052 int i;
5053 const char *tag;
5054 boolean_t recursive = B_FALSE;
428870ff
BB		 5055 boolean_t temphold = B_FALSE;
5056 const char *opts = holding ? "rt" : "r";
45d1cae3 5057 int c;
45d1cae3
BB		 5058
5059 /* check options */
428870ff 5060 while ((c = getopt(argc, argv, opts)) != -1) {
45d1cae3
BB		 5061 switch (c) {
5062 case 'r':
5063 recursive = B_TRUE;
5064 break;
428870ff
BB		 5065 case 't':
5066 temphold = B_TRUE;
5067 break;
45d1cae3
BB		 5068 case '?':
5069 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5070 optopt);
5071 usage(B_FALSE);
5072 }
5073 }
5074
5075 argc -= optind;
5076 argv += optind;
5077
5078 /* check number of arguments */
5079 if (argc < 2)
5080 usage(B_FALSE);
5081
5082 tag = argv[0];
5083 --argc;
5084 ++argv;
5085
428870ff
BB		 5086 if (holding && tag[0] == '.') {
5087 /* tags starting with '.' are reserved for libzfs */
5088 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5089 usage(B_FALSE);
45d1cae3
BB		 5090 }
5091
5092 for (i = 0; i < argc; ++i) {
5093 zfs_handle_t *zhp;
5094 char parent[ZFS_MAXNAMELEN];
5095 const char *delim;
5096 char *path = argv[i];
5097
5098 delim = strchr(path, '@');
5099 if (delim == NULL) {
5100 (void) fprintf(stderr,
5101 gettext("'%s' is not a snapshot\n"), path);
5102 ++errors;
5103 continue;
5104 }
5105 (void) strncpy(parent, path, delim - path);
5106 parent[delim - path] = '\0';
5107
5108 zhp = zfs_open(g_zfs, parent,
5109 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5110 if (zhp == NULL) {
5111 ++errors;
5112 continue;
5113 }
428870ff
BB		 5114 if (holding) {
5115 if (zfs_hold(zhp, delim+1, tag, recursive,
572e2857 5116 temphold, B_FALSE, -1, 0, 0) != 0)
428870ff
BB		 5117 ++errors;
5118 } else {
5119 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5120 ++errors;
5121 }
45d1cae3
BB		 5122 zfs_close(zhp);
5123 }
5124
5125 return (errors != 0);
5126}
5127
5128/*
428870ff 5129 * zfs hold [-r] [-t] <tag> <snap> ...
45d1cae3 5130 *
428870ff
BB		 5131 * -r Recursively hold
5132 * -t Temporary hold (hidden option)
45d1cae3
BB		 5133 *
5134 * Apply a user-hold with the given tag to the list of snapshots.
5135 */
5136static int
5137zfs_do_hold(int argc, char **argv)
5138{
5139 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5140}
5141
5142/*
5143 * zfs release [-r] <tag> <snap> ...
5144 *
428870ff 5145 * -r Recursively release
45d1cae3
BB		 5146 *
5147 * Release a user-hold with the given tag from the list of snapshots.
5148 */
5149static int
5150zfs_do_release(int argc, char **argv)
5151{
5152 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5153}
5154
0b7936d5
AS		 5155typedef struct holds_cbdata {
5156 boolean_t cb_recursive;
5157 const char *cb_snapname;
5158 nvlist_t **cb_nvlp;
5159 size_t cb_max_namelen;
5160 size_t cb_max_taglen;
5161} holds_cbdata_t;
5162
5163#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5164#define DATETIME_BUF_LEN (32)
5165/*
5166 *
5167 */
5168static void
5169print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5170{
5171 int i;
5172 nvpair_t *nvp = NULL;
5173 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5174 const char *col;
5175
5176 if (!scripted) {
5177 for (i = 0; i < 3; i++) {
5178 col = gettext(hdr_cols[i]);
5179 if (i < 2)
5180 (void) printf("%-*s ", i ? tagwidth : nwidth,
5181 col);
5182 else
5183 (void) printf("%s\n", col);
5184 }
5185 }
5186
5187 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5188 char *zname = nvpair_name(nvp);
5189 nvlist_t *nvl2;
5190 nvpair_t *nvp2 = NULL;
5191 (void) nvpair_value_nvlist(nvp, &nvl2);
5192 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5193 char tsbuf[DATETIME_BUF_LEN];
5194 char *tagname = nvpair_name(nvp2);
5195 uint64_t val = 0;
5196 time_t time;
5197 struct tm t;
5198 char sep = scripted ? '\t' : ' ';
5199 int sepnum = scripted ? 1 : 2;
5200
5201 (void) nvpair_value_uint64(nvp2, &val);
5202 time = (time_t)val;
5203 (void) localtime_r(&time, &t);
5204 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5205 gettext(STRFTIME_FMT_STR), &t);
5206
5207 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5208 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5209 }
5210 }
5211}
5212
5213/*
5214 * Generic callback function to list a dataset or snapshot.
5215 */
5216static int
5217holds_callback(zfs_handle_t *zhp, void *data)
5218{
5219 holds_cbdata_t *cbp = data;
5220 nvlist_t *top_nvl = *cbp->cb_nvlp;
5221 nvlist_t *nvl = NULL;
5222 nvpair_t *nvp = NULL;
5223 const char *zname = zfs_get_name(zhp);
5224 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN);
5225
5226 if (cbp->cb_recursive) {
5227 const char *snapname;
5228 char *delim = strchr(zname, '@');
5229 if (delim == NULL)
5230 return (0);
5231
5232 snapname = delim + 1;
5233 if (strcmp(cbp->cb_snapname, snapname))
5234 return (0);
5235 }
5236
5237 if (zfs_get_holds(zhp, &nvl) != 0)
5238 return (-1);
5239
5240 if (znamelen > cbp->cb_max_namelen)
5241 cbp->cb_max_namelen = znamelen;
5242
5243 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5244 const char *tag = nvpair_name(nvp);
5245 size_t taglen = strnlen(tag, MAXNAMELEN);
5246 if (taglen > cbp->cb_max_taglen)
5247 cbp->cb_max_taglen = taglen;
5248 }
5249
5250 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5251}
5252
5253/*
5254 * zfs holds [-r] <snap> ...
5255 *
5256 * -r Recursively hold
5257 */
5258static int
5259zfs_do_holds(int argc, char **argv)
5260{
5261 int errors = 0;
5262 int c;
5263 int i;
5264 boolean_t scripted = B_FALSE;
5265 boolean_t recursive = B_FALSE;
5266 const char *opts = "rH";
5267 nvlist_t *nvl;
5268
5269 int types = ZFS_TYPE_SNAPSHOT;
5270 holds_cbdata_t cb = { 0 };
5271
5272 int limit = 0;
ad60af8e 5273 int ret = 0;
0b7936d5
AS		 5274 int flags = 0;
5275
5276 /* check options */
5277 while ((c = getopt(argc, argv, opts)) != -1) {
5278 switch (c) {
5279 case 'r':
5280 recursive = B_TRUE;
5281 break;
5282 case 'H':
5283 scripted = B_TRUE;
5284 break;
5285 case '?':
5286 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5287 optopt);
5288 usage(B_FALSE);
5289 }
5290 }
5291
5292 if (recursive) {
5293 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5294 flags |= ZFS_ITER_RECURSE;
5295 }
5296
5297 argc -= optind;
5298 argv += optind;
5299
5300 /* check number of arguments */
5301 if (argc < 1)
5302 usage(B_FALSE);
5303
5304 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5305 nomem();
5306
5307 for (i = 0; i < argc; ++i) {
5308 char *snapshot = argv[i];
5309 const char *delim;
5310 const char *snapname;
5311
5312 delim = strchr(snapshot, '@');
5313 if (delim == NULL) {
5314 (void) fprintf(stderr,
5315 gettext("'%s' is not a snapshot\n"), snapshot);
5316 ++errors;
5317 continue;
5318 }
5319 snapname = delim + 1;
5320 if (recursive)
5321 snapshot[delim - snapshot] = '\0';
5322
5323 cb.cb_recursive = recursive;
5324 cb.cb_snapname = snapname;
5325 cb.cb_nvlp = &nvl;
5326
5327 /*
5328 * 1. collect holds data, set format options
5329 */
5330 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5331 holds_callback, &cb);
5332 if (ret != 0)
5333 ++errors;
5334 }
5335
5336 /*
5337 * 2. print holds data
5338 */
5339 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5340
5341 if (nvlist_empty(nvl))
42cb3819 5342 (void) fprintf(stderr, gettext("no datasets available\n"));
0b7936d5
AS		 5343
5344 nvlist_free(nvl);
5345
5346 return (0 != errors);
5347}
5348
34dc7c2f
BB		 5349#define CHECK_SPINNER 30
5350#define SPINNER_TIME 3 /* seconds */
5351#define MOUNT_TIME 5 /* seconds */
5352
5353static int
5354get_one_dataset(zfs_handle_t *zhp, void *data)
5355{
428870ff 5356 static char *spin[] = { "-", "\\", "|", "/" };
34dc7c2f
BB		 5357 static int spinval = 0;
5358 static int spincheck = 0;
5359 static time_t last_spin_time = (time_t)0;
572e2857 5360 get_all_cb_t *cbp = data;
34dc7c2f
BB		 5361 zfs_type_t type = zfs_get_type(zhp);
5362
5363 if (cbp->cb_verbose) {
5364 if (--spincheck < 0) {
5365 time_t now = time(NULL);
5366 if (last_spin_time + SPINNER_TIME < now) {
428870ff 5367 update_progress(spin[spinval++ % 4]);
34dc7c2f
BB		 5368 last_spin_time = now;
5369 }
5370 spincheck = CHECK_SPINNER;
5371 }
5372 }
5373
5374 /*
5375 * Interate over any nested datasets.
5376 */
572e2857 5377 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
34dc7c2f
BB		 5378 zfs_close(zhp);
5379 return (1);
5380 }
5381
5382 /*
5383 * Skip any datasets whose type does not match.
5384 */
572e2857 5385 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
34dc7c2f
BB		 5386 zfs_close(zhp);
5387 return (0);
5388 }
572e2857
BB		 5389 libzfs_add_handle(cbp, zhp);
5390 assert(cbp->cb_used <= cbp->cb_alloc);
34dc7c2f
BB		 5391
5392 return (0);
5393}
5394
5395static void
572e2857 5396get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
34dc7c2f 5397{
572e2857 5398 get_all_cb_t cb = { 0 };
34dc7c2f 5399 cb.cb_verbose = verbose;
572e2857 5400 cb.cb_getone = get_one_dataset;
34dc7c2f 5401
428870ff
BB		 5402 if (verbose)
5403 set_progress_header(gettext("Reading ZFS config"));
34dc7c2f
BB		 5404 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5405
5406 *dslist = cb.cb_handles;
5407 *count = cb.cb_used;
5408
428870ff
BB		 5409 if (verbose)
5410 finish_progress(gettext("done."));
34dc7c2f
BB		 5411}
5412
34dc7c2f
BB		 5413/*
5414 * Generic callback for sharing or mounting filesystems. Because the code is so
5415 * similar, we have a common function with an extra parameter to determine which
5416 * mode we are using.
5417 */
5418#define OP_SHARE 0x1
5419#define OP_MOUNT 0x2
5420
5421/*
5422 * Share or mount a dataset.
5423 */
5424static int
5425share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5426 boolean_t explicit, const char *options)
5427{
5428 char mountpoint[ZFS_MAXPROPLEN];
5429 char shareopts[ZFS_MAXPROPLEN];
5430 char smbshareopts[ZFS_MAXPROPLEN];
5431 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5432 struct mnttab mnt;
5433 uint64_t zoned, canmount;
34dc7c2f
BB		 5434 boolean_t shared_nfs, shared_smb;
5435
572e2857 5436 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
34dc7c2f 5437
572e2857
BB		 5438 /*
5439 * Check to make sure we can mount/share this dataset. If we
5440 * are in the global zone and the filesystem is exported to a
5441 * local zone, or if we are in a local zone and the
5442 * filesystem is not exported, then it is an error.
5443 */
5444 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
34dc7c2f 5445
572e2857
BB		 5446 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5447 if (!explicit)
5448 return (0);
34dc7c2f 5449
572e2857
BB		 5450 (void) fprintf(stderr, gettext("cannot %s '%s': "
5451 "dataset is exported to a local zone\n"), cmdname,
5452 zfs_get_name(zhp));
5453 return (1);
34dc7c2f 5454
572e2857
BB		 5455 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5456 if (!explicit)
5457 return (0);
34dc7c2f 5458
572e2857
BB		 5459 (void) fprintf(stderr, gettext("cannot %s '%s': "
5460 "permission denied\n"), cmdname,
5461 zfs_get_name(zhp));
5462 return (1);
5463 }
34dc7c2f 5464
572e2857
BB		 5465 /*
5466 * Ignore any filesystems which don't apply to us. This
5467 * includes those with a legacy mountpoint, or those with
5468 * legacy share options.
5469 */
5470 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5471 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5472 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5473 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5474 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5475 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5476
5477 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5478 strcmp(smbshareopts, "off") == 0) {
5479 if (!explicit)
5480 return (0);
34dc7c2f 5481
572e2857
BB		 5482 (void) fprintf(stderr, gettext("cannot share '%s': "
5483 "legacy share\n"), zfs_get_name(zhp));
5484 (void) fprintf(stderr, gettext("use share(1M) to "
5485 "share this filesystem, or set "
5486 "sharenfs property on\n"));
5487 return (1);
5488 }
34dc7c2f 5489
572e2857
BB		 5490 /*
5491 * We cannot share or mount legacy filesystems. If the
5492 * shareopts is non-legacy but the mountpoint is legacy, we
5493 * treat it as a legacy share.
5494 */
5495 if (strcmp(mountpoint, "legacy") == 0) {
5496 if (!explicit)
5497 return (0);
34dc7c2f 5498
572e2857
BB		 5499 (void) fprintf(stderr, gettext("cannot %s '%s': "
5500 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5501 (void) fprintf(stderr, gettext("use %s(1M) to "
5502 "%s this filesystem\n"), cmdname, cmdname);
5503 return (1);
5504 }
34dc7c2f 5505
572e2857
BB		 5506 if (strcmp(mountpoint, "none") == 0) {
5507 if (!explicit)
5508 return (0);
34dc7c2f 5509
572e2857
BB		 5510 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5511 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5512 return (1);
5513 }
34dc7c2f 5514
572e2857
BB		 5515 /*
5516 * canmount explicit outcome
5517 * on no pass through
5518 * on yes pass through
5519 * off no return 0
5520 * off yes display error, return 1
5521 * noauto no return 0
5522 * noauto yes pass through
5523 */
5524 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5525 if (canmount == ZFS_CANMOUNT_OFF) {
5526 if (!explicit)
5527 return (0);
5528
5529 (void) fprintf(stderr, gettext("cannot %s '%s': "
5530 "'canmount' property is set to 'off'\n"), cmdname,
5531 zfs_get_name(zhp));
5532 return (1);
5533 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5534 return (0);
5535 }
5536
5537 /*
5538 * At this point, we have verified that the mountpoint and/or
5539 * shareopts are appropriate for auto management. If the
5540 * filesystem is already mounted or shared, return (failing
5541 * for explicit requests); otherwise mount or share the
5542 * filesystem.
5543 */
5544 switch (op) {
5545 case OP_SHARE:
5546
5547 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5548 shared_smb = zfs_is_shared_smb(zhp, NULL);
5549
149e873a
BB		 5550 if ((shared_nfs && shared_smb) ||
5551 ((shared_nfs && strcmp(shareopts, "on") == 0) &&
5552 (strcmp(smbshareopts, "off") == 0)) ||
5553 ((shared_smb && strcmp(smbshareopts, "on") == 0) &&
5554 (strcmp(shareopts, "off") == 0))) {
34dc7c2f
BB		 5555 if (!explicit)
5556 return (0);
5557
572e2857
BB		 5558 (void) fprintf(stderr, gettext("cannot share "
5559 "'%s': filesystem already shared\n"),
34dc7c2f
BB		 5560 zfs_get_name(zhp));
5561 return (1);
34dc7c2f
BB		 5562 }
5563
572e2857
BB		 5564 if (!zfs_is_mounted(zhp, NULL) &&
5565 zfs_mount(zhp, NULL, 0) != 0)
5566 return (1);
34dc7c2f 5567
572e2857
BB		 5568 if (protocol == NULL) {
5569 if (zfs_shareall(zhp) != 0)
34dc7c2f 5570 return (1);
572e2857
BB		 5571 } else if (strcmp(protocol, "nfs") == 0) {
5572 if (zfs_share_nfs(zhp))
34dc7c2f 5573 return (1);
572e2857
BB		 5574 } else if (strcmp(protocol, "smb") == 0) {
5575 if (zfs_share_smb(zhp))
34dc7c2f 5576 return (1);
572e2857
BB		 5577 } else {
5578 (void) fprintf(stderr, gettext("cannot share "
5579 "'%s': invalid share type '%s' "
5580 "specified\n"),
5581 zfs_get_name(zhp), protocol);
5582 return (1);
5583 }
34dc7c2f 5584
572e2857 5585 break;
34dc7c2f 5586
572e2857
BB		 5587 case OP_MOUNT:
5588 if (options == NULL)
5589 mnt.mnt_mntopts = "";
5590 else
5591 mnt.mnt_mntopts = (char *)options;
34dc7c2f 5592
572e2857
BB		 5593 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5594 zfs_is_mounted(zhp, NULL)) {
5595 if (!explicit)
5596 return (0);
34dc7c2f 5597
572e2857
BB		 5598 (void) fprintf(stderr, gettext("cannot mount "
5599 "'%s': filesystem already mounted\n"),
5600 zfs_get_name(zhp));
5601 return (1);
34dc7c2f 5602 }
572e2857
BB		 5603
5604 if (zfs_mount(zhp, options, flags) != 0)
5605 return (1);
5606 break;
5607 }
34dc7c2f 5608
34dc7c2f
BB		 5609 return (0);
5610}
5611
5612/*
5613 * Reports progress in the form "(current/total)". Not thread-safe.
5614 */
5615static void
5616report_mount_progress(int current, int total)
5617{
428870ff 5618 static time_t last_progress_time = 0;
34dc7c2f 5619 time_t now = time(NULL);
428870ff 5620 char info[32];
34dc7c2f
BB		 5621
5622 /* report 1..n instead of 0..n-1 */
5623 ++current;
5624
5625 /* display header if we're here for the first time */
5626 if (current == 1) {
428870ff 5627 set_progress_header(gettext("Mounting ZFS filesystems"));
34dc7c2f
BB		 5628 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
5629 /* too soon to report again */
5630 return;
5631 }
5632
5633 last_progress_time = now;
5634
428870ff 5635 (void) sprintf(info, "(%d/%d)", current, total);
34dc7c2f 5636
428870ff
BB		 5637 if (current == total)
5638 finish_progress(info);
5639 else
5640 update_progress(info);
34dc7c2f
BB		 5641}
5642
5643static void
5644append_options(char *mntopts, char *newopts)
5645{
5646 int len = strlen(mntopts);
5647
5648 /* original length plus new string to append plus 1 for the comma */
5649 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
5650 (void) fprintf(stderr, gettext("the opts argument for "
d6320ddb 5651 "'%s' option is too long (more than %d chars)\n"),
34dc7c2f
BB		 5652 "-o", MNT_LINE_MAX);
5653 usage(B_FALSE);
5654 }
5655
5656 if (*mntopts)
5657 mntopts[len++] = ',';
5658
5659 (void) strcpy(&mntopts[len], newopts);
5660}
5661
5662static int
5663share_mount(int op, int argc, char **argv)
5664{
5665 int do_all = 0;
5666 boolean_t verbose = B_FALSE;
5667 int c, ret = 0;
5668 char *options = NULL;
572e2857 5669 int flags = 0;
34dc7c2f
BB		 5670
5671 /* check options */
e18be9a6 5672 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
34dc7c2f
BB		 5673 != -1) {
5674 switch (c) {
5675 case 'a':
5676 do_all = 1;
5677 break;
5678 case 'v':
5679 verbose = B_TRUE;
5680 break;
5681 case 'o':
5682 if (*optarg == '\0') {
5683 (void) fprintf(stderr, gettext("empty mount "
5684 "options (-o) specified\n"));
5685 usage(B_FALSE);
5686 }
5687
5688 if (options == NULL)
5689 options = safe_malloc(MNT_LINE_MAX + 1);
5690
5691 /* option validation is done later */
5692 append_options(options, optarg);
5693 break;
e18be9a6
SC		 5694 case 'O':
5695 flags |= MS_OVERLAY;
5696 break;
34dc7c2f
BB		 5697 case ':':
5698 (void) fprintf(stderr, gettext("missing argument for "
5699 "'%c' option\n"), optopt);
5700 usage(B_FALSE);
5701 break;
5702 case '?':
5703 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5704 optopt);
5705 usage(B_FALSE);
5706 }
5707 }
5708
5709 argc -= optind;
5710 argv += optind;
5711
5712 /* check number of arguments */
5713 if (do_all) {
5714 zfs_handle_t **dslist = NULL;
5715 size_t i, count = 0;
5716 char *protocol = NULL;
5717
572e2857
BB		 5718 if (op == OP_SHARE && argc > 0) {
5719 if (strcmp(argv[0], "nfs") != 0 &&
5720 strcmp(argv[0], "smb") != 0) {
34dc7c2f 5721 (void) fprintf(stderr, gettext("share type "
428870ff 5722 "must be 'nfs' or 'smb'\n"));
34dc7c2f
BB		 5723 usage(B_FALSE);
5724 }
5725 protocol = argv[0];
5726 argc--;
5727 argv++;
34dc7c2f
BB		 5728 }
5729
5730 if (argc != 0) {
5731 (void) fprintf(stderr, gettext("too many arguments\n"));
5732 usage(B_FALSE);
5733 }
5734
428870ff 5735 start_progress_timer();
572e2857 5736 get_all_datasets(&dslist, &count, verbose);
34dc7c2f
BB		 5737
5738 if (count == 0)
5739 return (0);
5740
572e2857 5741 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
34dc7c2f
BB		 5742
5743 for (i = 0; i < count; i++) {
5744 if (verbose)
5745 report_mount_progress(i, count);
5746
5747 if (share_mount_one(dslist[i], op, flags, protocol,
5748 B_FALSE, options) != 0)
5749 ret = 1;
5750 zfs_close(dslist[i]);
5751 }
5752
5753 free(dslist);
5754 } else if (argc == 0) {
5755 struct mnttab entry;
5756
5757 if ((op == OP_SHARE) || (options != NULL)) {
5758 (void) fprintf(stderr, gettext("missing filesystem "
5759 "argument (specify -a for all)\n"));
5760 usage(B_FALSE);
5761 }
5762
5763 /*
9a616b5d 5764 * When mount is given no arguments, go through /etc/mtab and
34dc7c2f
BB		 5765 * display any active ZFS mounts. We hide any snapshots, since
5766 * they are controlled automatically.
5767 */
5768 rewind(mnttab_file);
5769 while (getmntent(mnttab_file, &entry) == 0) {
5770 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
5771 strchr(entry.mnt_special, '@') != NULL)
5772 continue;
5773
5774 (void) printf("%-30s %s\n", entry.mnt_special,
5775 entry.mnt_mountp);
5776 }
5777
5778 } else {
5779 zfs_handle_t *zhp;
5780
34dc7c2f
BB		 5781 if (argc > 1) {
5782 (void) fprintf(stderr,
5783 gettext("too many arguments\n"));
5784 usage(B_FALSE);
5785 }
5786
572e2857
BB		 5787 if ((zhp = zfs_open(g_zfs, argv[0],
5788 ZFS_TYPE_FILESYSTEM)) == NULL) {
34dc7c2f
BB		 5789 ret = 1;
5790 } else {
5791 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
5792 options);
5793 zfs_close(zhp);
5794 }
5795 }
5796
5797 return (ret);
5798}
5799
5800/*
428870ff 5801 * zfs mount -a [nfs]
34dc7c2f
BB		 5802 * zfs mount filesystem
5803 *
5804 * Mount all filesystems, or mount the given filesystem.
5805 */
5806static int
5807zfs_do_mount(int argc, char **argv)
5808{
5809 return (share_mount(OP_MOUNT, argc, argv));
5810}
5811
5812/*
428870ff 5813 * zfs share -a [nfs | smb]
34dc7c2f
BB		 5814 * zfs share filesystem
5815 *
5816 * Share all filesystems, or share the given filesystem.
5817 */
5818static int
5819zfs_do_share(int argc, char **argv)
5820{
5821 return (share_mount(OP_SHARE, argc, argv));
5822}
5823
5824typedef struct unshare_unmount_node {
5825 zfs_handle_t *un_zhp;
5826 char *un_mountp;
5827 uu_avl_node_t un_avlnode;
5828} unshare_unmount_node_t;
5829
5830/* ARGSUSED */
5831static int
5832unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
5833{
5834 const unshare_unmount_node_t *l = larg;
5835 const unshare_unmount_node_t *r = rarg;
5836
5837 return (strcmp(l->un_mountp, r->un_mountp));
5838}
5839
5840/*
5841 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
9a616b5d 5842 * absolute path, find the entry /etc/mtab, verify that its a ZFS filesystem,
34dc7c2f
BB		 5843 * and unmount it appropriately.
5844 */
5845static int
5846unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
5847{
5848 zfs_handle_t *zhp;
ad60af8e 5849 int ret = 0;
34dc7c2f
BB		 5850 struct stat64 statbuf;
5851 struct extmnttab entry;
5852 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
5853 ino_t path_inode;
5854
5855 /*
9a616b5d 5856 * Search for the path in /etc/mtab. Rather than looking for the
34dc7c2f
BB		 5857 * specific path, which can be fooled by non-standard paths (i.e. ".."
5858 * or "//"), we stat() the path and search for the corresponding
5859 * (major,minor) device pair.
5860 */
5861 if (stat64(path, &statbuf) != 0) {
5862 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5863 cmdname, path, strerror(errno));
5864 return (1);
5865 }
5866 path_inode = statbuf.st_ino;
5867
5868 /*
5869 * Search for the given (major,minor) pair in the mount table.
5870 */
5871 rewind(mnttab_file);
5872 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
5873 if (entry.mnt_major == major(statbuf.st_dev) &&
5874 entry.mnt_minor == minor(statbuf.st_dev))
5875 break;
5876 }
5877 if (ret != 0) {
5878 if (op == OP_SHARE) {
5879 (void) fprintf(stderr, gettext("cannot %s '%s': not "
5880 "currently mounted\n"), cmdname, path);
5881 return (1);
5882 }
9a616b5d 5883 (void) fprintf(stderr, gettext("warning: %s not in mtab\n"),
34dc7c2f
BB		 5884 path);
5885 if ((ret = umount2(path, flags)) != 0)
5886 (void) fprintf(stderr, gettext("%s: %s\n"), path,
5887 strerror(errno));
5888 return (ret != 0);
5889 }
5890
5891 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
5892 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
5893 "filesystem\n"), cmdname, path);
5894 return (1);
5895 }
5896
5897 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
5898 ZFS_TYPE_FILESYSTEM)) == NULL)
5899 return (1);
5900
34dc7c2f 5901 ret = 1;
b128c09f
BB		 5902 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
5903 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5904 cmdname, path, strerror(errno));
5905 goto out;
5906 } else if (statbuf.st_ino != path_inode) {
5907 (void) fprintf(stderr, gettext("cannot "
5908 "%s '%s': not a mountpoint\n"), cmdname, path);
5909 goto out;
5910 }
5911
34dc7c2f
BB		 5912 if (op == OP_SHARE) {
5913 char nfs_mnt_prop[ZFS_MAXPROPLEN];
5914 char smbshare_prop[ZFS_MAXPROPLEN];
5915
5916 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
5917 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
5918 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
5919 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
5920
5921 if (strcmp(nfs_mnt_prop, "off") == 0 &&
5922 strcmp(smbshare_prop, "off") == 0) {
5923 (void) fprintf(stderr, gettext("cannot unshare "
5924 "'%s': legacy share\n"), path);
9a616b5d
BB		 5925 (void) fprintf(stderr, gettext("use exportfs(8) "
5926 "or smbcontrol(1) to unshare this filesystem\n"));
34dc7c2f
BB		 5927 } else if (!zfs_is_shared(zhp)) {
5928 (void) fprintf(stderr, gettext("cannot unshare '%s': "
5929 "not currently shared\n"), path);
5930 } else {
5931 ret = zfs_unshareall_bypath(zhp, path);
5932 }
5933 } else {
5934 char mtpt_prop[ZFS_MAXPROPLEN];
5935
5936 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
5937 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
5938
b128c09f 5939 if (is_manual) {
34dc7c2f
BB		 5940 ret = zfs_unmount(zhp, NULL, flags);
5941 } else if (strcmp(mtpt_prop, "legacy") == 0) {
5942 (void) fprintf(stderr, gettext("cannot unmount "
5943 "'%s': legacy mountpoint\n"),
5944 zfs_get_name(zhp));
9a616b5d 5945 (void) fprintf(stderr, gettext("use umount(8) "
34dc7c2f
BB		 5946 "to unmount this filesystem\n"));
5947 } else {
5948 ret = zfs_unmountall(zhp, flags);
5949 }
5950 }
5951
b128c09f 5952out:
34dc7c2f
BB		 5953 zfs_close(zhp);
5954
5955 return (ret != 0);
5956}
5957
5958/*
5959 * Generic callback for unsharing or unmounting a filesystem.
5960 */
5961static int
5962unshare_unmount(int op, int argc, char **argv)
5963{
5964 int do_all = 0;
5965 int flags = 0;
5966 int ret = 0;
572e2857 5967 int c;
34dc7c2f 5968 zfs_handle_t *zhp;
428870ff 5969 char nfs_mnt_prop[ZFS_MAXPROPLEN];
34dc7c2f
BB		 5970 char sharesmb[ZFS_MAXPROPLEN];
5971
5972 /* check options */
5973 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
5974 switch (c) {
5975 case 'a':
5976 do_all = 1;
5977 break;
5978 case 'f':
5979 flags = MS_FORCE;
5980 break;
5981 case '?':
5982 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5983 optopt);
5984 usage(B_FALSE);
5985 }
5986 }
5987
5988 argc -= optind;
5989 argv += optind;
5990
5991 if (do_all) {
5992 /*
5993 * We could make use of zfs_for_each() to walk all datasets in
5994 * the system, but this would be very inefficient, especially
9a616b5d
BB		 5995 * since we would have to linearly search /etc/mtab for each
5996 * one. Instead, do one pass through /etc/mtab looking for
34dc7c2f
BB		 5997 * zfs entries and call zfs_unmount() for each one.
5998 *
5999 * Things get a little tricky if the administrator has created
6000 * mountpoints beneath other ZFS filesystems. In this case, we
6001 * have to unmount the deepest filesystems first. To accomplish
6002 * this, we place all the mountpoints in an AVL tree sorted by
6003 * the special type (dataset name), and walk the result in
6004 * reverse to make sure to get any snapshots first.
6005 */
6006 struct mnttab entry;
6007 uu_avl_pool_t *pool;
149e873a 6008 uu_avl_t *tree = NULL;
34dc7c2f
BB		 6009 unshare_unmount_node_t *node;
6010 uu_avl_index_t idx;
6011 uu_avl_walk_t *walk;
6012
6013 if (argc != 0) {
6014 (void) fprintf(stderr, gettext("too many arguments\n"));
6015 usage(B_FALSE);
6016 }
6017
428870ff 6018 if (((pool = uu_avl_pool_create("unmount_pool",
34dc7c2f
BB		 6019 sizeof (unshare_unmount_node_t),
6020 offsetof(unshare_unmount_node_t, un_avlnode),
428870ff
BB		 6021 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6022 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6023 nomem();
34dc7c2f
BB		 6024
6025 rewind(mnttab_file);
6026 while (getmntent(mnttab_file, &entry) == 0) {
6027
6028 /* ignore non-ZFS entries */
6029 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6030 continue;
6031
6032 /* ignore snapshots */
6033 if (strchr(entry.mnt_special, '@') != NULL)
6034 continue;
6035
6036 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6037 ZFS_TYPE_FILESYSTEM)) == NULL) {
6038 ret = 1;
6039 continue;
6040 }
6041
6042 switch (op) {
6043 case OP_SHARE:
6044 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
428870ff
BB		 6045 nfs_mnt_prop,
6046 sizeof (nfs_mnt_prop),
34dc7c2f 6047 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6048 if (strcmp(nfs_mnt_prop, "off") != 0)
34dc7c2f
BB		 6049 break;
6050 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
428870ff
BB		 6051 nfs_mnt_prop,
6052 sizeof (nfs_mnt_prop),
34dc7c2f 6053 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6054 if (strcmp(nfs_mnt_prop, "off") == 0)
34dc7c2f
BB		 6055 continue;
6056 break;
6057 case OP_MOUNT:
6058 /* Ignore legacy mounts */
6059 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
428870ff
BB		 6060 nfs_mnt_prop,
6061 sizeof (nfs_mnt_prop),
34dc7c2f 6062 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6063 if (strcmp(nfs_mnt_prop, "legacy") == 0)
34dc7c2f
BB		 6064 continue;
6065 /* Ignore canmount=noauto mounts */
6066 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6067 ZFS_CANMOUNT_NOAUTO)
6068 continue;
6069 default:
6070 break;
6071 }
6072
6073 node = safe_malloc(sizeof (unshare_unmount_node_t));
6074 node->un_zhp = zhp;
428870ff 6075 node->un_mountp = safe_strdup(entry.mnt_mountp);
34dc7c2f
BB		 6076
6077 uu_avl_node_init(node, &node->un_avlnode, pool);
6078
6079 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6080 uu_avl_insert(tree, node, idx);
6081 } else {
6082 zfs_close(node->un_zhp);
6083 free(node->un_mountp);
6084 free(node);
6085 }
6086 }
6087
6088 /*
6089 * Walk the AVL tree in reverse, unmounting each filesystem and
6090 * removing it from the AVL tree in the process.
6091 */
6092 if ((walk = uu_avl_walk_start(tree,
428870ff
BB		 6093 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6094 nomem();
34dc7c2f
BB		 6095
6096 while ((node = uu_avl_walk_next(walk)) != NULL) {
6097 uu_avl_remove(tree, node);
6098
6099 switch (op) {
6100 case OP_SHARE:
6101 if (zfs_unshareall_bypath(node->un_zhp,
6102 node->un_mountp) != 0)
6103 ret = 1;
6104 break;
6105
6106 case OP_MOUNT:
6107 if (zfs_unmount(node->un_zhp,
6108 node->un_mountp, flags) != 0)
6109 ret = 1;
6110 break;
6111 }
6112
6113 zfs_close(node->un_zhp);
6114 free(node->un_mountp);
6115 free(node);
6116 }
6117
6118 uu_avl_walk_end(walk);
6119 uu_avl_destroy(tree);
6120 uu_avl_pool_destroy(pool);
6121
34dc7c2f
BB		 6122 } else {
6123 if (argc != 1) {
6124 if (argc == 0)
6125 (void) fprintf(stderr,
6126 gettext("missing filesystem argument\n"));
6127 else
6128 (void) fprintf(stderr,
6129 gettext("too many arguments\n"));
6130 usage(B_FALSE);
6131 }
6132
6133 /*
6134 * We have an argument, but it may be a full path or a ZFS
6135 * filesystem. Pass full paths off to unmount_path() (shared by
6136 * manual_unmount), otherwise open the filesystem and pass to
6137 * zfs_unmount().
6138 */
6139 if (argv[0][0] == '/')
6140 return (unshare_unmount_path(op, argv[0],
6141 flags, B_FALSE));
6142
572e2857
BB		 6143 if ((zhp = zfs_open(g_zfs, argv[0],
6144 ZFS_TYPE_FILESYSTEM)) == NULL)
34dc7c2f
BB		 6145 return (1);
6146
572e2857
BB		 6147 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6148 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6149 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6150 NULL, 0, B_FALSE) == 0);
34dc7c2f 6151
572e2857
BB		 6152 switch (op) {
6153 case OP_SHARE:
6154 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6155 nfs_mnt_prop,
6156 sizeof (nfs_mnt_prop),
6157 NULL, NULL, 0, B_FALSE) == 0);
6158 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6159 sharesmb, sizeof (sharesmb), NULL, NULL,
6160 0, B_FALSE) == 0);
6161
6162 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6163 strcmp(sharesmb, "off") == 0) {
6164 (void) fprintf(stderr, gettext("cannot "
6165 "unshare '%s': legacy share\n"),
6166 zfs_get_name(zhp));
6167 (void) fprintf(stderr, gettext("use "
6168 "unshare(1M) to unshare this "
6169 "filesystem\n"));
6170 ret = 1;
6171 } else if (!zfs_is_shared(zhp)) {
6172 (void) fprintf(stderr, gettext("cannot "
6173 "unshare '%s': not currently "
6174 "shared\n"), zfs_get_name(zhp));
6175 ret = 1;
6176 } else if (zfs_unshareall(zhp) != 0) {
6177 ret = 1;
6178 }
6179 break;
34dc7c2f 6180
572e2857
BB		 6181 case OP_MOUNT:
6182 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6183 (void) fprintf(stderr, gettext("cannot "
6184 "unmount '%s': legacy "
6185 "mountpoint\n"), zfs_get_name(zhp));
6186 (void) fprintf(stderr, gettext("use "
6187 "umount(1M) to unmount this "
6188 "filesystem\n"));
6189 ret = 1;
6190 } else if (!zfs_is_mounted(zhp, NULL)) {
6191 (void) fprintf(stderr, gettext("cannot "
6192 "unmount '%s': not currently "
6193 "mounted\n"),
6194 zfs_get_name(zhp));
6195 ret = 1;
6196 } else if (zfs_unmountall(zhp, flags) != 0) {
6197 ret = 1;
34dc7c2f 6198 }
572e2857 6199 break;
34dc7c2f
BB		 6200 }
6201
6202 zfs_close(zhp);
6203 }
6204
6205 return (ret);
6206}
6207
6208/*
6209 * zfs unmount -a
6210 * zfs unmount filesystem
6211 *
6212 * Unmount all filesystems, or a specific ZFS filesystem.
6213 */
6214static int
6215zfs_do_unmount(int argc, char **argv)
6216{
6217 return (unshare_unmount(OP_MOUNT, argc, argv));
6218}
6219
6220/*
6221 * zfs unshare -a
6222 * zfs unshare filesystem
6223 *
6224 * Unshare all filesystems, or a specific ZFS filesystem.
6225 */
6226static int
6227zfs_do_unshare(int argc, char **argv)
6228{
6229 return (unshare_unmount(OP_SHARE, argc, argv));
6230}
6231
34dc7c2f
BB		 6232static int
6233find_command_idx(char *command, int *idx)
6234{
6235 int i;
6236
6237 for (i = 0; i < NCOMMAND; i++) {
6238 if (command_table[i].name == NULL)
6239 continue;
6240
6241 if (strcmp(command, command_table[i].name) == 0) {
6242 *idx = i;
6243 return (0);
6244 }
6245 }
6246 return (1);
6247}
6248
572e2857
BB		 6249static int
6250zfs_do_diff(int argc, char **argv)
6251{
6252 zfs_handle_t *zhp;
6253 int flags = 0;
6254 char *tosnap = NULL;
6255 char *fromsnap = NULL;
6256 char *atp, *copy;
ad60af8e 6257 int err = 0;
572e2857
BB		 6258 int c;
6259
6260 while ((c = getopt(argc, argv, "FHt")) != -1) {
6261 switch (c) {
6262 case 'F':
6263 flags |= ZFS_DIFF_CLASSIFY;
6264 break;
6265 case 'H':
6266 flags |= ZFS_DIFF_PARSEABLE;
6267 break;
6268 case 't':
6269 flags |= ZFS_DIFF_TIMESTAMP;
6270 break;
6271 default:
6272 (void) fprintf(stderr,
6273 gettext("invalid option '%c'\n"), optopt);
6274 usage(B_FALSE);
6275 }
6276 }
6277
6278 argc -= optind;
6279 argv += optind;
6280
6281 if (argc < 1) {
6282 (void) fprintf(stderr,
6283 gettext("must provide at least one snapshot name\n"));
6284 usage(B_FALSE);
6285 }
6286
6287 if (argc > 2) {
6288 (void) fprintf(stderr, gettext("too many arguments\n"));
6289 usage(B_FALSE);
6290 }
6291
6292 fromsnap = argv[0];
6293 tosnap = (argc == 2) ? argv[1] : NULL;
6294
6295 copy = NULL;
6296 if (*fromsnap != '@')
6297 copy = strdup(fromsnap);
6298 else if (tosnap)
6299 copy = strdup(tosnap);
6300 if (copy == NULL)
6301 usage(B_FALSE);
6302
c65aa5b2 6303 if ((atp = strchr(copy, '@')))
572e2857
BB		 6304 *atp = '\0';
6305
6306 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6307 return (1);
6308
6309 free(copy);
6310
6311 /*
6312 * Ignore SIGPIPE so that the library can give us
6313 * information on any failure
6314 */
6315 (void) sigignore(SIGPIPE);
6316
6317 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6318
6319 zfs_close(zhp);
6320
6321 return (err != 0);
6322}
6323
34dc7c2f
BB		 6324int
6325main(int argc, char **argv)
6326{
ad60af8e 6327 int ret = 0;
d4ed6673 6328 int i = 0;
34dc7c2f
BB		 6329 char *cmdname;
6330
6331 (void) setlocale(LC_ALL, "");
6332 (void) textdomain(TEXT_DOMAIN);
6333
6334 opterr = 0;
6335
34dc7c2f
BB		 6336 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) {
6337 (void) fprintf(stderr, gettext("internal error: unable to "
6338 "open %s\n"), MNTTAB);
6339 return (1);
6340 }
6341
6342 /*
d53368f6 6343 * Make sure the user has specified some command.
34dc7c2f 6344 */
d53368f6
BB		 6345 if (argc < 2) {
6346 (void) fprintf(stderr, gettext("missing command\n"));
6347 usage(B_FALSE);
6348 }
34dc7c2f 6349
d53368f6 6350 cmdname = argv[1];
34dc7c2f 6351
d53368f6
BB		 6352 /*
6353 * The 'umount' command is an alias for 'unmount'
6354 */
6355 if (strcmp(cmdname, "umount") == 0)
6356 cmdname = "unmount";
34dc7c2f 6357
d53368f6
BB		 6358 /*
6359 * The 'recv' command is an alias for 'receive'
6360 */
6361 if (strcmp(cmdname, "recv") == 0)
6362 cmdname = "receive";
34dc7c2f 6363
10b75496
S		 6364 /*
6365 * The 'snap' command is an alias for 'snapshot'
6366 */
6367 if (strcmp(cmdname, "snap") == 0)
6368 cmdname = "snapshot";
6369
d53368f6
BB		 6370 /*
6371 * Special case '-?'
6372 */
6373 if ((strcmp(cmdname, "-?") == 0) ||
6374 (strcmp(cmdname, "--help") == 0))
6375 usage(B_TRUE);
34dc7c2f 6376
d53368f6
BB		 6377 if ((g_zfs = libzfs_init()) == NULL)
6378 return (1);
9b020fd9 6379
d53368f6
BB		 6380 zpool_set_history_str("zfs", argc, argv, history_str);
6381 verify(zpool_stage_history(g_zfs, history_str) == 0);
9b020fd9 6382
d53368f6 6383 libzfs_print_on_error(g_zfs, B_TRUE);
9b020fd9 6384
d53368f6
BB		 6385 /*
6386 * Run the appropriate command.
6387 */
b740d602 6388 libzfs_mnttab_cache(g_zfs, B_FALSE);
d53368f6
BB		 6389 if (find_command_idx(cmdname, &i) == 0) {
6390 current_command = &command_table[i];
6391 ret = command_table[i].func(argc - 1, argv + 1);
6392 } else if (strchr(cmdname, '=') != NULL) {
6393 verify(find_command_idx("set", &i) == 0);
6394 current_command = &command_table[i];
6395 ret = command_table[i].func(argc, argv);
6396 } else {
6397 (void) fprintf(stderr, gettext("unrecognized "
6398 "command '%s'\n"), cmdname);
6399 usage(B_FALSE);
6400 ret = 1;
34dc7c2f 6401 }
d53368f6 6402 libzfs_fini(g_zfs);
34dc7c2f
BB		 6403
6404 (void) fclose(mnttab_file);
6405
34dc7c2f
BB		 6406 /*
6407 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
6408 * for the purposes of running ::findleaks.
6409 */
6410 if (getenv("ZFS_ABORT") != NULL) {
6411 (void) printf("dumping core by request\n");
6412 abort();
6413 }
6414
6415 return (ret);
6416}
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