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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.
db49968e 25 * Copyright (c) 2012 by Delphix. All rights reserved.
37abac6d 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
34dc7c2f
BB		 27 */
28
34dc7c2f
BB		 29#include <assert.h>
30#include <ctype.h>
31#include <errno.h>
32#include <libgen.h>
33#include <libintl.h>
34#include <libuutil.h>
35#include <libnvpair.h>
36#include <locale.h>
37#include <stddef.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <strings.h>
41#include <unistd.h>
42#include <fcntl.h>
43#include <zone.h>
9babb374
BB		 44#include <grp.h>
45#include <pwd.h>
572e2857 46#include <signal.h>
0b7936d5 47#include <sys/list.h>
34dc7c2f
BB		 48#include <sys/mkdev.h>
49#include <sys/mntent.h>
50#include <sys/mnttab.h>
51#include <sys/mount.h>
52#include <sys/stat.h>
9babb374 53#include <sys/fs/zfs.h>
428870ff
BB		 54#include <sys/types.h>
55#include <time.h>
34dc7c2f
BB		 56
57#include <libzfs.h>
0b7936d5
AS		 58#include <zfs_prop.h>
59#include <zfs_deleg.h>
34dc7c2f 60#include <libuutil.h>
0b7936d5
AS		 61#ifdef HAVE_IDMAP
62#include <aclutils.h>
63#include <directory.h>
64#endif /* HAVE_IDMAP */
34dc7c2f
BB		 65
66#include "zfs_iter.h"
67#include "zfs_util.h"
428870ff 68#include "zfs_comutil.h"
34dc7c2f
BB		 69
70libzfs_handle_t *g_zfs;
71
72static FILE *mnttab_file;
73static char history_str[HIS_MAX_RECORD_LEN];
74
75static int zfs_do_clone(int argc, char **argv);
76static int zfs_do_create(int argc, char **argv);
77static int zfs_do_destroy(int argc, char **argv);
78static int zfs_do_get(int argc, char **argv);
79static int zfs_do_inherit(int argc, char **argv);
80static int zfs_do_list(int argc, char **argv);
81static int zfs_do_mount(int argc, char **argv);
82static int zfs_do_rename(int argc, char **argv);
83static int zfs_do_rollback(int argc, char **argv);
84static int zfs_do_set(int argc, char **argv);
85static int zfs_do_upgrade(int argc, char **argv);
86static int zfs_do_snapshot(int argc, char **argv);
87static int zfs_do_unmount(int argc, char **argv);
88static int zfs_do_share(int argc, char **argv);
89static int zfs_do_unshare(int argc, char **argv);
90static int zfs_do_send(int argc, char **argv);
91static int zfs_do_receive(int argc, char **argv);
92static int zfs_do_promote(int argc, char **argv);
9babb374 93static int zfs_do_userspace(int argc, char **argv);
0b7936d5
AS		 94static int zfs_do_allow(int argc, char **argv);
95static int zfs_do_unallow(int argc, char **argv);
45d1cae3 96static int zfs_do_hold(int argc, char **argv);
0b7936d5 97static int zfs_do_holds(int argc, char **argv);
45d1cae3 98static int zfs_do_release(int argc, char **argv);
572e2857 99static int zfs_do_diff(int argc, char **argv);
34dc7c2f
BB		 100
101/*
b128c09f 102 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
34dc7c2f 103 */
b128c09f
BB		 104
105#ifdef DEBUG
34dc7c2f
BB		 106const char *
107_umem_debug_init(void)
108{
109 return ("default,verbose"); /* $UMEM_DEBUG setting */
110}
111
112const char *
113_umem_logging_init(void)
114{
115 return ("fail,contents"); /* $UMEM_LOGGING setting */
116}
b128c09f 117#endif
34dc7c2f
BB		 118
119typedef enum {
120 HELP_CLONE,
121 HELP_CREATE,
122 HELP_DESTROY,
123 HELP_GET,
124 HELP_INHERIT,
125 HELP_UPGRADE,
126 HELP_LIST,
127 HELP_MOUNT,
128 HELP_PROMOTE,
129 HELP_RECEIVE,
130 HELP_RENAME,
131 HELP_ROLLBACK,
132 HELP_SEND,
133 HELP_SET,
134 HELP_SHARE,
135 HELP_SNAPSHOT,
136 HELP_UNMOUNT,
137 HELP_UNSHARE,
138 HELP_ALLOW,
9babb374
BB		 139 HELP_UNALLOW,
140 HELP_USERSPACE,
45d1cae3
BB		 141 HELP_GROUPSPACE,
142 HELP_HOLD,
143 HELP_HOLDS,
572e2857 144 HELP_RELEASE,
330d06f9 145 HELP_DIFF,
34dc7c2f
BB		 146} zfs_help_t;
147
148typedef struct zfs_command {
149 const char *name;
150 int (*func)(int argc, char **argv);
151 zfs_help_t usage;
152} zfs_command_t;
153
154/*
155 * Master command table. Each ZFS command has a name, associated function, and
156 * usage message. The usage messages need to be internationalized, so we have
157 * to have a function to return the usage message based on a command index.
158 *
159 * These commands are organized according to how they are displayed in the usage
160 * message. An empty command (one with a NULL name) indicates an empty line in
161 * the generic usage message.
162 */
163static zfs_command_t command_table[] = {
164 { "create", zfs_do_create, HELP_CREATE },
165 { "destroy", zfs_do_destroy, HELP_DESTROY },
166 { NULL },
167 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
168 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
169 { "clone", zfs_do_clone, HELP_CLONE },
170 { "promote", zfs_do_promote, HELP_PROMOTE },
171 { "rename", zfs_do_rename, HELP_RENAME },
172 { NULL },
173 { "list", zfs_do_list, HELP_LIST },
174 { NULL },
175 { "set", zfs_do_set, HELP_SET },
428870ff 176 { "get", zfs_do_get, HELP_GET },
34dc7c2f
BB		 177 { "inherit", zfs_do_inherit, HELP_INHERIT },
178 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
9babb374
BB		 179 { "userspace", zfs_do_userspace, HELP_USERSPACE },
180 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
34dc7c2f
BB		 181 { NULL },
182 { "mount", zfs_do_mount, HELP_MOUNT },
183 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
184 { "share", zfs_do_share, HELP_SHARE },
185 { "unshare", zfs_do_unshare, HELP_UNSHARE },
186 { NULL },
187 { "send", zfs_do_send, HELP_SEND },
188 { "receive", zfs_do_receive, HELP_RECEIVE },
189 { NULL },
0b7936d5 190 { "allow", zfs_do_allow, HELP_ALLOW },
34dc7c2f 191 { NULL },
0b7936d5 192 { "unallow", zfs_do_unallow, HELP_UNALLOW },
45d1cae3
BB		 193 { NULL },
194 { "hold", zfs_do_hold, HELP_HOLD },
0b7936d5 195 { "holds", zfs_do_holds, HELP_HOLDS },
45d1cae3 196 { "release", zfs_do_release, HELP_RELEASE },
572e2857 197 { "diff", zfs_do_diff, HELP_DIFF },
34dc7c2f
BB		 198};
199
200#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
201
202zfs_command_t *current_command;
203
204static const char *
205get_usage(zfs_help_t idx)
206{
207 switch (idx) {
208 case HELP_CLONE:
b128c09f
BB		 209 return (gettext("\tclone [-p] [-o property=value] ... "
210 "<snapshot> <filesystem|volume>\n"));
34dc7c2f
BB		 211 case HELP_CREATE:
212 return (gettext("\tcreate [-p] [-o property=value] ... "
213 "<filesystem>\n"
214 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
215 "-V <size> <volume>\n"));
216 case HELP_DESTROY:
330d06f9
MA		 217 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
218 "\tdestroy [-dnpRrv] "
219 "<filesystem|volume>@<snap>[%<snap>][,...]\n"));
34dc7c2f 220 case HELP_GET:
9babb374 221 return (gettext("\tget [-rHp] [-d max] "
e346ec25
AS		 222 "[-o \"all\" | field[,...]] [-t type[,...]] "
223 "[-s source[,...]]\n"
34dc7c2f
BB		 224 "\t <\"all\" | property[,...]> "
225 "[filesystem|volume|snapshot] ...\n"));
226 case HELP_INHERIT:
428870ff 227 return (gettext("\tinherit [-rS] <property> "
b128c09f 228 "<filesystem|volume|snapshot> ...\n"));
34dc7c2f
BB		 229 case HELP_UPGRADE:
230 return (gettext("\tupgrade [-v]\n"
231 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
232 case HELP_LIST:
9babb374
BB		 233 return (gettext("\tlist [-rH][-d max] "
234 "[-o property[,...]] [-t type[,...]] [-s property] ...\n"
34dc7c2f 235 "\t [-S property] ... "
cf81b00a 236 "[filesystem|volume|snapshot|snap] ...\n"));
34dc7c2f
BB		 237 case HELP_MOUNT:
238 return (gettext("\tmount\n"
239 "\tmount [-vO] [-o opts] <-a | filesystem>\n"));
240 case HELP_PROMOTE:
241 return (gettext("\tpromote <clone-filesystem>\n"));
242 case HELP_RECEIVE:
428870ff 243 return (gettext("\treceive [-vnFu] <filesystem|volume|"
34dc7c2f 244 "snapshot>\n"
428870ff 245 "\treceive [-vnFu] [-d | -e] <filesystem>\n"));
34dc7c2f 246 case HELP_RENAME:
db49968e 247 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
34dc7c2f 248 "<filesystem|volume|snapshot>\n"
db49968e 249 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
34dc7c2f
BB		 250 "\trename -r <snapshot> <snapshot>"));
251 case HELP_ROLLBACK:
252 return (gettext("\trollback [-rRf] <snapshot>\n"));
253 case HELP_SEND:
330d06f9
MA		 254 return (gettext("\tsend [-DnPpRrv] [-[iI] snapshot] "
255 "<snapshot>\n"));
34dc7c2f
BB		 256 case HELP_SET:
257 return (gettext("\tset <property=value> "
b128c09f 258 "<filesystem|volume|snapshot> ...\n"));
34dc7c2f
BB		 259 case HELP_SHARE:
260 return (gettext("\tshare <-a | filesystem>\n"));
261 case HELP_SNAPSHOT:
10b75496 262 return (gettext("\tsnapshot|snap [-r] [-o property=value] ... "
34dc7c2f
BB		 263 "<filesystem@snapname|volume@snapname>\n"));
264 case HELP_UNMOUNT:
265 return (gettext("\tunmount [-f] "
266 "<-a | filesystem|mountpoint>\n"));
267 case HELP_UNSHARE:
45d1cae3 268 return (gettext("\tunshare "
34dc7c2f
BB		 269 "<-a | filesystem|mountpoint>\n"));
270 case HELP_ALLOW:
9babb374
BB		 271 return (gettext("\tallow <filesystem|volume>\n"
272 "\tallow [-ldug] "
34dc7c2f
BB		 273 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
274 "\t <filesystem|volume>\n"
275 "\tallow [-ld] -e <perm|@setname>[,...] "
276 "<filesystem|volume>\n"
277 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
278 "\tallow -s @setname <perm|@setname>[,...] "
279 "<filesystem|volume>\n"));
280 case HELP_UNALLOW:
281 return (gettext("\tunallow [-rldug] "
282 "<\"everyone\"|user|group>[,...]\n"
283 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
284 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
285 "<filesystem|volume>\n"
286 "\tunallow [-r] -c [<perm|@setname>[,...]] "
287 "<filesystem|volume>\n"
288 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
289 "<filesystem|volume>\n"));
9babb374 290 case HELP_USERSPACE:
5990da81
YP		 291 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
292 "[-s field] ...\n\t[-S field] ... "
293 "[-t type[,...]] <filesystem|snapshot>\n"));
9babb374 294 case HELP_GROUPSPACE:
5990da81
YP		 295 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
296 "[-s field] ...\n\t[-S field] ... "
297 "[-t type[,...]] <filesystem|snapshot>\n"));
45d1cae3
BB		 298 case HELP_HOLD:
299 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
300 case HELP_HOLDS:
301 return (gettext("\tholds [-r] <snapshot> ...\n"));
302 case HELP_RELEASE:
303 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
572e2857
BB		 304 case HELP_DIFF:
305 return (gettext("\tdiff [-FHt] <snapshot> "
306 "[snapshot|filesystem]\n"));
34dc7c2f
BB		 307 }
308
309 abort();
310 /* NOTREACHED */
311}
312
428870ff
BB		 313void
314nomem(void)
315{
316 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
317 exit(1);
318}
319
34dc7c2f
BB		 320/*
321 * Utility function to guarantee malloc() success.
322 */
428870ff 323
34dc7c2f
BB		 324void *
325safe_malloc(size_t size)
326{
327 void *data;
328
428870ff
BB		 329 if ((data = calloc(1, size)) == NULL)
330 nomem();
34dc7c2f
BB		 331
332 return (data);
333}
334
428870ff
BB		 335static char *
336safe_strdup(char *str)
337{
338 char *dupstr = strdup(str);
339
340 if (dupstr == NULL)
341 nomem();
342
343 return (dupstr);
344}
345
34dc7c2f
BB		 346/*
347 * Callback routine that will print out information for each of
348 * the properties.
349 */
350static int
351usage_prop_cb(int prop, void *cb)
352{
353 FILE *fp = cb;
354
b128c09f 355 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
34dc7c2f 356
b128c09f
BB		 357 if (zfs_prop_readonly(prop))
358 (void) fprintf(fp, " NO ");
34dc7c2f 359 else
b128c09f 360 (void) fprintf(fp, "YES ");
34dc7c2f
BB		 361
362 if (zfs_prop_inheritable(prop))
363 (void) fprintf(fp, " YES ");
364 else
365 (void) fprintf(fp, " NO ");
366
367 if (zfs_prop_values(prop) == NULL)
368 (void) fprintf(fp, "-\n");
369 else
370 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
371
372 return (ZPROP_CONT);
373}
374
375/*
376 * Display usage message. If we're inside a command, display only the usage for
377 * that command. Otherwise, iterate over the entire command table and display
378 * a complete usage message.
379 */
380static void
381usage(boolean_t requested)
382{
383 int i;
384 boolean_t show_properties = B_FALSE;
34dc7c2f
BB		 385 FILE *fp = requested ? stdout : stderr;
386
387 if (current_command == NULL) {
388
389 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
390 (void) fprintf(fp,
391 gettext("where 'command' is one of the following:\n\n"));
392
393 for (i = 0; i < NCOMMAND; i++) {
394 if (command_table[i].name == NULL)
395 (void) fprintf(fp, "\n");
396 else
397 (void) fprintf(fp, "%s",
398 get_usage(command_table[i].usage));
399 }
400
401 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
402 "pool/[dataset/]*dataset[@name]\n"));
403 } else {
404 (void) fprintf(fp, gettext("usage:\n"));
405 (void) fprintf(fp, "%s", get_usage(current_command->usage));
406 }
407
408 if (current_command != NULL &&
409 (strcmp(current_command->name, "set") == 0 ||
410 strcmp(current_command->name, "get") == 0 ||
411 strcmp(current_command->name, "inherit") == 0 ||
412 strcmp(current_command->name, "list") == 0))
413 show_properties = B_TRUE;
414
34dc7c2f 415 if (show_properties) {
34dc7c2f
BB		 416 (void) fprintf(fp,
417 gettext("\nThe following properties are supported:\n"));
418
419 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
420 "PROPERTY", "EDIT", "INHERIT", "VALUES");
421
422 /* Iterate over all properties */
423 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
424 ZFS_TYPE_DATASET);
425
9babb374
BB		 426 (void) fprintf(fp, "\t%-15s ", "userused@...");
427 (void) fprintf(fp, " NO NO <size>\n");
428 (void) fprintf(fp, "\t%-15s ", "groupused@...");
429 (void) fprintf(fp, " NO NO <size>\n");
430 (void) fprintf(fp, "\t%-15s ", "userquota@...");
431 (void) fprintf(fp, "YES NO <size> | none\n");
432 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
433 (void) fprintf(fp, "YES NO <size> | none\n");
330d06f9
MA		 434 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
435 (void) fprintf(fp, " NO NO <size>\n");
9babb374 436
34dc7c2f
BB		 437 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
438 "with standard units such as K, M, G, etc.\n"));
b128c09f 439 (void) fprintf(fp, gettext("\nUser-defined properties can "
34dc7c2f 440 "be specified by using a name containing a colon (:).\n"));
9babb374
BB		 441 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
442 "properties must be appended with\n"
443 "a user or group specifier of one of these forms:\n"
444 " POSIX name (eg: \"matt\")\n"
445 " POSIX id (eg: \"126829\")\n"
446 " SMB name@domain (eg: \"matt@sun\")\n"
447 " SMB SID (eg: \"S-1-234-567-89\")\n"));
34dc7c2f 448 } else {
34dc7c2f 449 (void) fprintf(fp,
fb5f0bc8
BB		 450 gettext("\nFor the property list, run: %s\n"),
451 "zfs set|get");
34dc7c2f 452 (void) fprintf(fp,
fb5f0bc8
BB		 453 gettext("\nFor the delegated permission list, run: %s\n"),
454 "zfs allow|unallow");
34dc7c2f
BB		 455 }
456
457 /*
458 * See comments at end of main().
459 */
460 if (getenv("ZFS_ABORT") != NULL) {
461 (void) printf("dumping core by request\n");
462 abort();
463 }
464
465 exit(requested ? 0 : 2);
466}
467
b128c09f
BB		 468static int
469parseprop(nvlist_t *props)
470{
471 char *propname = optarg;
472 char *propval, *strval;
473
474 if ((propval = strchr(propname, '=')) == NULL) {
475 (void) fprintf(stderr, gettext("missing "
476 "'=' for -o option\n"));
477 return (-1);
478 }
479 *propval = '\0';
480 propval++;
481 if (nvlist_lookup_string(props, propname, &strval) == 0) {
482 (void) fprintf(stderr, gettext("property '%s' "
483 "specified multiple times\n"), propname);
484 return (-1);
485 }
428870ff
BB		 486 if (nvlist_add_string(props, propname, propval) != 0)
487 nomem();
b128c09f 488 return (0);
b128c09f
BB		 489}
490
9babb374
BB		 491static int
492parse_depth(char *opt, int *flags)
493{
494 char *tmp;
495 int depth;
496
497 depth = (int)strtol(opt, &tmp, 0);
498 if (*tmp) {
499 (void) fprintf(stderr,
500 gettext("%s is not an integer\n"), optarg);
501 usage(B_FALSE);
502 }
503 if (depth < 0) {
504 (void) fprintf(stderr,
505 gettext("Depth can not be negative.\n"));
506 usage(B_FALSE);
507 }
508 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
509 return (depth);
510}
511
428870ff
BB		 512#define PROGRESS_DELAY 2 /* seconds */
513
514static 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";
515static time_t pt_begin;
516static char *pt_header = NULL;
517static boolean_t pt_shown;
518
519static void
520start_progress_timer(void)
521{
522 pt_begin = time(NULL) + PROGRESS_DELAY;
523 pt_shown = B_FALSE;
524}
525
526static void
527set_progress_header(char *header)
528{
529 assert(pt_header == NULL);
530 pt_header = safe_strdup(header);
531 if (pt_shown) {
532 (void) printf("%s: ", header);
533 (void) fflush(stdout);
534 }
535}
536
537static void
538update_progress(char *update)
539{
540 if (!pt_shown && time(NULL) > pt_begin) {
541 int len = strlen(update);
542
543 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
544 pt_reverse);
545 (void) fflush(stdout);
546 pt_shown = B_TRUE;
547 } else if (pt_shown) {
548 int len = strlen(update);
549
550 (void) printf("%s%*.*s", update, len, len, pt_reverse);
551 (void) fflush(stdout);
552 }
553}
554
555static void
556finish_progress(char *done)
557{
558 if (pt_shown) {
559 (void) printf("%s\n", done);
560 (void) fflush(stdout);
561 }
562 free(pt_header);
563 pt_header = NULL;
564}
d603ed6c 565
34dc7c2f 566/*
b128c09f 567 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
34dc7c2f
BB		 568 *
569 * Given an existing dataset, create a writable copy whose initial contents
570 * are the same as the source. The newly created dataset maintains a
571 * dependency on the original; the original cannot be destroyed so long as
572 * the clone exists.
573 *
574 * The '-p' flag creates all the non-existing ancestors of the target first.
575 */
576static int
577zfs_do_clone(int argc, char **argv)
578{
b128c09f 579 zfs_handle_t *zhp = NULL;
34dc7c2f 580 boolean_t parents = B_FALSE;
b128c09f 581 nvlist_t *props;
ad60af8e 582 int ret = 0;
34dc7c2f
BB		 583 int c;
584
428870ff
BB		 585 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
586 nomem();
b128c09f 587
34dc7c2f 588 /* check options */
b128c09f 589 while ((c = getopt(argc, argv, "o:p")) != -1) {
34dc7c2f 590 switch (c) {
b128c09f
BB		 591 case 'o':
592 if (parseprop(props))
593 return (1);
594 break;
34dc7c2f
BB		 595 case 'p':
596 parents = B_TRUE;
597 break;
598 case '?':
599 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
600 optopt);
b128c09f 601 goto usage;
34dc7c2f
BB		 602 }
603 }
604
605 argc -= optind;
606 argv += optind;
607
608 /* check number of arguments */
609 if (argc < 1) {
610 (void) fprintf(stderr, gettext("missing source dataset "
611 "argument\n"));
b128c09f 612 goto usage;
34dc7c2f
BB		 613 }
614 if (argc < 2) {
615 (void) fprintf(stderr, gettext("missing target dataset "
616 "argument\n"));
b128c09f 617 goto usage;
34dc7c2f
BB		 618 }
619 if (argc > 2) {
620 (void) fprintf(stderr, gettext("too many arguments\n"));
b128c09f 621 goto usage;
34dc7c2f
BB		 622 }
623
624 /* open the source dataset */
625 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
626 return (1);
627
628 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
629 ZFS_TYPE_VOLUME)) {
630 /*
631 * Now create the ancestors of the target dataset. If the
632 * target already exists and '-p' option was used we should not
633 * complain.
634 */
635 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
636 ZFS_TYPE_VOLUME))
637 return (0);
638 if (zfs_create_ancestors(g_zfs, argv[1]) != 0)
639 return (1);
640 }
641
642 /* pass to libzfs */
b128c09f 643 ret = zfs_clone(zhp, argv[1], props);
34dc7c2f
BB		 644
645 /* create the mountpoint if necessary */
646 if (ret == 0) {
647 zfs_handle_t *clone;
648
649 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET);
650 if (clone != NULL) {
572e2857
BB		 651 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME)
652 if ((ret = zfs_mount(clone, NULL, 0)) == 0)
653 ret = zfs_share(clone);
34dc7c2f
BB		 654 zfs_close(clone);
655 }
656 }
657
658 zfs_close(zhp);
b128c09f 659 nvlist_free(props);
34dc7c2f 660
b128c09f
BB		 661 return (!!ret);
662
663usage:
664 if (zhp)
665 zfs_close(zhp);
666 nvlist_free(props);
667 usage(B_FALSE);
668 return (-1);
34dc7c2f
BB		 669}
670
671/*
672 * zfs create [-p] [-o prop=value] ... fs
673 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
674 *
675 * Create a new dataset. This command can be used to create filesystems
676 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
677 * For volumes, the user must specify a size to be used.
678 *
679 * The '-s' flag applies only to volumes, and indicates that we should not try
680 * to set the reservation for this volume. By default we set a reservation
681 * equal to the size for any volume. For pools with SPA_VERSION >=
682 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
683 *
684 * The '-p' flag creates all the non-existing ancestors of the target first.
685 */
686static int
687zfs_do_create(int argc, char **argv)
688{
689 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
690 zfs_handle_t *zhp = NULL;
d4ed6673 691 uint64_t volsize = 0;
34dc7c2f
BB		 692 int c;
693 boolean_t noreserve = B_FALSE;
694 boolean_t bflag = B_FALSE;
695 boolean_t parents = B_FALSE;
696 int ret = 1;
b128c09f 697 nvlist_t *props;
34dc7c2f 698 uint64_t intval;
572e2857 699 int canmount = ZFS_CANMOUNT_OFF;
34dc7c2f 700
428870ff
BB		 701 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
702 nomem();
34dc7c2f
BB		 703
704 /* check options */
705 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
706 switch (c) {
707 case 'V':
708 type = ZFS_TYPE_VOLUME;
709 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
710 (void) fprintf(stderr, gettext("bad volume "
711 "size '%s': %s\n"), optarg,
712 libzfs_error_description(g_zfs));
713 goto error;
714 }
715
716 if (nvlist_add_uint64(props,
428870ff
BB		 717 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
718 nomem();
34dc7c2f
BB		 719 volsize = intval;
720 break;
721 case 'p':
722 parents = B_TRUE;
723 break;
724 case 'b':
725 bflag = B_TRUE;
726 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
727 (void) fprintf(stderr, gettext("bad volume "
728 "block size '%s': %s\n"), optarg,
729 libzfs_error_description(g_zfs));
730 goto error;
731 }
732
733 if (nvlist_add_uint64(props,
734 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
428870ff
BB		 735 intval) != 0)
736 nomem();
34dc7c2f
BB		 737 break;
738 case 'o':
b128c09f 739 if (parseprop(props))
34dc7c2f 740 goto error;
34dc7c2f
BB		 741 break;
742 case 's':
743 noreserve = B_TRUE;
744 break;
745 case ':':
746 (void) fprintf(stderr, gettext("missing size "
747 "argument\n"));
748 goto badusage;
749 break;
750 case '?':
751 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
752 optopt);
753 goto badusage;
754 }
755 }
756
757 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
758 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
759 "used when creating a volume\n"));
760 goto badusage;
761 }
762
763 argc -= optind;
764 argv += optind;
765
766 /* check number of arguments */
767 if (argc == 0) {
768 (void) fprintf(stderr, gettext("missing %s argument\n"),
769 zfs_type_to_name(type));
770 goto badusage;
771 }
772 if (argc > 1) {
773 (void) fprintf(stderr, gettext("too many arguments\n"));
774 goto badusage;
775 }
776
777 if (type == ZFS_TYPE_VOLUME && !noreserve) {
778 zpool_handle_t *zpool_handle;
779 uint64_t spa_version;
780 char *p;
781 zfs_prop_t resv_prop;
b128c09f 782 char *strval;
34dc7c2f 783
c65aa5b2 784 if ((p = strchr(argv[0], '/')))
34dc7c2f
BB		 785 *p = '\0';
786 zpool_handle = zpool_open(g_zfs, argv[0]);
787 if (p != NULL)
788 *p = '/';
789 if (zpool_handle == NULL)
790 goto error;
791 spa_version = zpool_get_prop_int(zpool_handle,
792 ZPOOL_PROP_VERSION, NULL);
793 zpool_close(zpool_handle);
794 if (spa_version >= SPA_VERSION_REFRESERVATION)
795 resv_prop = ZFS_PROP_REFRESERVATION;
796 else
797 resv_prop = ZFS_PROP_RESERVATION;
428870ff 798 volsize = zvol_volsize_to_reservation(volsize, props);
34dc7c2f
BB		 799
800 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
801 &strval) != 0) {
802 if (nvlist_add_uint64(props,
803 zfs_prop_to_name(resv_prop), volsize) != 0) {
34dc7c2f 804 nvlist_free(props);
428870ff 805 nomem();
34dc7c2f
BB		 806 }
807 }
808 }
809
810 if (parents && zfs_name_valid(argv[0], type)) {
811 /*
812 * Now create the ancestors of target dataset. If the target
813 * already exists and '-p' option was used we should not
814 * complain.
815 */
816 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
817 ret = 0;
818 goto error;
819 }
820 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
821 goto error;
822 }
823
824 /* pass to libzfs */
825 if (zfs_create(g_zfs, argv[0], type, props) != 0)
826 goto error;
827
828 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
829 goto error;
572e2857
BB		 830
831 ret = 0;
34dc7c2f
BB		 832 /*
833 * if the user doesn't want the dataset automatically mounted,
834 * then skip the mount/share step
835 */
572e2857
BB		 836 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type))
837 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
34dc7c2f
BB		 838
839 /*
840 * Mount and/or share the new filesystem as appropriate. We provide a
841 * verbose error message to let the user know that their filesystem was
842 * in fact created, even if we failed to mount or share it.
843 */
34dc7c2f
BB		 844 if (canmount == ZFS_CANMOUNT_ON) {
845 if (zfs_mount(zhp, NULL, 0) != 0) {
846 (void) fprintf(stderr, gettext("filesystem "
847 "successfully created, but not mounted\n"));
848 ret = 1;
849 } else if (zfs_share(zhp) != 0) {
850 (void) fprintf(stderr, gettext("filesystem "
851 "successfully created, but not shared\n"));
852 ret = 1;
853 }
854 }
855
856error:
857 if (zhp)
858 zfs_close(zhp);
859 nvlist_free(props);
860 return (ret);
861badusage:
862 nvlist_free(props);
863 usage(B_FALSE);
864 return (2);
865}
866
867/*
428870ff
BB		 868 * zfs destroy [-rRf] <fs, vol>
869 * zfs destroy [-rRd] <snap>
34dc7c2f 870 *
428870ff
BB		 871 * -r Recursively destroy all children
872 * -R Recursively destroy all dependents, including clones
873 * -f Force unmounting of any dependents
45d1cae3 874 * -d If we can't destroy now, mark for deferred destruction
34dc7c2f
BB		 875 *
876 * Destroys the given dataset. By default, it will unmount any filesystems,
877 * and refuse to destroy a dataset that has any dependents. A dependent can
878 * either be a child, or a clone of a child.
879 */
880typedef struct destroy_cbdata {
881 boolean_t cb_first;
330d06f9
MA		 882 boolean_t cb_force;
883 boolean_t cb_recurse;
884 boolean_t cb_error;
885 boolean_t cb_doclones;
34dc7c2f 886 zfs_handle_t *cb_target;
45d1cae3 887 boolean_t cb_defer_destroy;
330d06f9
MA		 888 boolean_t cb_verbose;
889 boolean_t cb_parsable;
890 boolean_t cb_dryrun;
891 nvlist_t *cb_nvl;
892
893 /* first snap in contiguous run */
894 zfs_handle_t *cb_firstsnap;
895 /* previous snap in contiguous run */
896 zfs_handle_t *cb_prevsnap;
897 int64_t cb_snapused;
898 char *cb_snapspec;
34dc7c2f
BB		 899} destroy_cbdata_t;
900
901/*
902 * Check for any dependents based on the '-r' or '-R' flags.
903 */
904static int
905destroy_check_dependent(zfs_handle_t *zhp, void *data)
906{
907 destroy_cbdata_t *cbp = data;
908 const char *tname = zfs_get_name(cbp->cb_target);
909 const char *name = zfs_get_name(zhp);
910
911 if (strncmp(tname, name, strlen(tname)) == 0 &&
912 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
913 /*
914 * This is a direct descendant, not a clone somewhere else in
915 * the hierarchy.
916 */
917 if (cbp->cb_recurse)
918 goto out;
919
920 if (cbp->cb_first) {
921 (void) fprintf(stderr, gettext("cannot destroy '%s': "
922 "%s has children\n"),
923 zfs_get_name(cbp->cb_target),
924 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
925 (void) fprintf(stderr, gettext("use '-r' to destroy "
926 "the following datasets:\n"));
927 cbp->cb_first = B_FALSE;
330d06f9 928 cbp->cb_error = B_TRUE;
34dc7c2f
BB		 929 }
930
931 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
932 } else {
933 /*
934 * This is a clone. We only want to report this if the '-r'
935 * wasn't specified, or the target is a snapshot.
936 */
937 if (!cbp->cb_recurse &&
938 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
939 goto out;
940
941 if (cbp->cb_first) {
942 (void) fprintf(stderr, gettext("cannot destroy '%s': "
943 "%s has dependent clones\n"),
944 zfs_get_name(cbp->cb_target),
945 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
946 (void) fprintf(stderr, gettext("use '-R' to destroy "
947 "the following datasets:\n"));
948 cbp->cb_first = B_FALSE;
330d06f9
MA		 949 cbp->cb_error = B_TRUE;
950 cbp->cb_dryrun = B_TRUE;
34dc7c2f
BB		 951 }
952
953 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
954 }
955
956out:
957 zfs_close(zhp);
958 return (0);
959}
960
961static int
962destroy_callback(zfs_handle_t *zhp, void *data)
963{
330d06f9
MA		 964 destroy_cbdata_t *cb = data;
965 const char *name = zfs_get_name(zhp);
966
967 if (cb->cb_verbose) {
968 if (cb->cb_parsable) {
969 (void) printf("destroy\t%s\n", name);
970 } else if (cb->cb_dryrun) {
971 (void) printf(gettext("would destroy %s\n"),
972 name);
973 } else {
974 (void) printf(gettext("will destroy %s\n"),
975 name);
976 }
977 }
34dc7c2f
BB		 978
979 /*
980 * Ignore pools (which we've already flagged as an error before getting
428870ff 981 * here).
34dc7c2f
BB		 982 */
983 if (strchr(zfs_get_name(zhp), '/') == NULL &&
984 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
985 zfs_close(zhp);
986 return (0);
987 }
988
330d06f9
MA		 989 if (!cb->cb_dryrun) {
990 if (zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
991 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
992 zfs_close(zhp);
993 return (-1);
994 }
34dc7c2f
BB		 995 }
996
997 zfs_close(zhp);
998 return (0);
999}
1000
1001static int
330d06f9 1002destroy_print_cb(zfs_handle_t *zhp, void *arg)
34dc7c2f 1003{
330d06f9
MA		 1004 destroy_cbdata_t *cb = arg;
1005 const char *name = zfs_get_name(zhp);
1006 int err = 0;
1007
1008 if (nvlist_exists(cb->cb_nvl, name)) {
1009 if (cb->cb_firstsnap == NULL)
1010 cb->cb_firstsnap = zfs_handle_dup(zhp);
1011 if (cb->cb_prevsnap != NULL)
1012 zfs_close(cb->cb_prevsnap);
1013 /* this snap continues the current range */
1014 cb->cb_prevsnap = zfs_handle_dup(zhp);
1015 if (cb->cb_verbose) {
1016 if (cb->cb_parsable) {
1017 (void) printf("destroy\t%s\n", name);
1018 } else if (cb->cb_dryrun) {
1019 (void) printf(gettext("would destroy %s\n"),
1020 name);
1021 } else {
1022 (void) printf(gettext("will destroy %s\n"),
1023 name);
1024 }
34dc7c2f 1025 }
330d06f9
MA		 1026 } else if (cb->cb_firstsnap != NULL) {
1027 /* end of this range */
1028 uint64_t used = 0;
1029 err = zfs_get_snapused_int(cb->cb_firstsnap,
1030 cb->cb_prevsnap, &used);
1031 cb->cb_snapused += used;
1032 zfs_close(cb->cb_firstsnap);
1033 cb->cb_firstsnap = NULL;
1034 zfs_close(cb->cb_prevsnap);
1035 cb->cb_prevsnap = NULL;
34dc7c2f 1036 }
330d06f9
MA		 1037 zfs_close(zhp);
1038 return (err);
1039}
34dc7c2f 1040
330d06f9
MA		 1041static int
1042destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1043{
1044 int err;
1045 assert(cb->cb_firstsnap == NULL);
1046 assert(cb->cb_prevsnap == NULL);
1047 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1048 if (cb->cb_firstsnap != NULL) {
1049 uint64_t used = 0;
1050 if (err == 0) {
1051 err = zfs_get_snapused_int(cb->cb_firstsnap,
1052 cb->cb_prevsnap, &used);
1053 }
1054 cb->cb_snapused += used;
1055 zfs_close(cb->cb_firstsnap);
1056 cb->cb_firstsnap = NULL;
1057 zfs_close(cb->cb_prevsnap);
1058 cb->cb_prevsnap = NULL;
1059 }
1060 return (err);
1061}
1062
1063static int
1064snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1065{
1066 destroy_cbdata_t *cb = arg;
1067 int err = 0;
1068
1069 /* Check for clones. */
e956d651 1070 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
330d06f9
MA		 1071 cb->cb_target = zhp;
1072 cb->cb_first = B_TRUE;
1073 err = zfs_iter_dependents(zhp, B_TRUE,
1074 destroy_check_dependent, cb);
1075 }
1076
1077 if (err == 0) {
1078 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1079 nomem();
1080 }
1081 zfs_close(zhp);
1082 return (err);
1083}
1084
1085static int
1086gather_snapshots(zfs_handle_t *zhp, void *arg)
1087{
1088 destroy_cbdata_t *cb = arg;
1089 int err = 0;
1090
1091 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1092 if (err == ENOENT)
1093 err = 0;
1094 if (err != 0)
1095 goto out;
1096
1097 if (cb->cb_verbose) {
1098 err = destroy_print_snapshots(zhp, cb);
1099 if (err != 0)
1100 goto out;
1101 }
1102
1103 if (cb->cb_recurse)
1104 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1105
1106out:
1107 zfs_close(zhp);
1108 return (err);
1109}
1110
1111static int
1112destroy_clones(destroy_cbdata_t *cb)
1113{
1114 nvpair_t *pair;
1115 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1116 pair != NULL;
1117 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1118 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1119 ZFS_TYPE_SNAPSHOT);
1120 if (zhp != NULL) {
1121 boolean_t defer = cb->cb_defer_destroy;
1122 int err;
1123
1124 /*
1125 * We can't defer destroy non-snapshots, so set it to
1126 * false while destroying the clones.
1127 */
1128 cb->cb_defer_destroy = B_FALSE;
1129 err = zfs_iter_dependents(zhp, B_FALSE,
1130 destroy_callback, cb);
1131 cb->cb_defer_destroy = defer;
1132 zfs_close(zhp);
1133 if (err != 0)
1134 return (err);
1135 }
1136 }
1137 return (0);
34dc7c2f
BB		 1138}
1139
1140static int
1141zfs_do_destroy(int argc, char **argv)
1142{
1143 destroy_cbdata_t cb = { 0 };
1144 int c;
1145 zfs_handle_t *zhp;
330d06f9 1146 char *at;
428870ff 1147 zfs_type_t type = ZFS_TYPE_DATASET;
34dc7c2f
BB		 1148
1149 /* check options */
330d06f9 1150 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
34dc7c2f 1151 switch (c) {
330d06f9
MA		 1152 case 'v':
1153 cb.cb_verbose = B_TRUE;
1154 break;
1155 case 'p':
1156 cb.cb_verbose = B_TRUE;
1157 cb.cb_parsable = B_TRUE;
1158 break;
1159 case 'n':
1160 cb.cb_dryrun = B_TRUE;
1161 break;
45d1cae3
BB		 1162 case 'd':
1163 cb.cb_defer_destroy = B_TRUE;
428870ff 1164 type = ZFS_TYPE_SNAPSHOT;
45d1cae3 1165 break;
34dc7c2f 1166 case 'f':
330d06f9 1167 cb.cb_force = B_TRUE;
34dc7c2f
BB		 1168 break;
1169 case 'r':
330d06f9 1170 cb.cb_recurse = B_TRUE;
34dc7c2f
BB		 1171 break;
1172 case 'R':
330d06f9
MA		 1173 cb.cb_recurse = B_TRUE;
1174 cb.cb_doclones = B_TRUE;
34dc7c2f
BB		 1175 break;
1176 case '?':
1177 default:
1178 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1179 optopt);
1180 usage(B_FALSE);
1181 }
1182 }
1183
1184 argc -= optind;
1185 argv += optind;
1186
1187 /* check number of arguments */
1188 if (argc == 0) {
330d06f9 1189 (void) fprintf(stderr, gettext("missing dataset argument\n"));
34dc7c2f
BB		 1190 usage(B_FALSE);
1191 }
1192 if (argc > 1) {
1193 (void) fprintf(stderr, gettext("too many arguments\n"));
1194 usage(B_FALSE);
1195 }
1196
330d06f9
MA		 1197 at = strchr(argv[0], '@');
1198 if (at != NULL) {
1199 int err = 0;
34dc7c2f 1200
330d06f9
MA		 1201 /* Build the list of snaps to destroy in cb_nvl. */
1202 if (nvlist_alloc(&cb.cb_nvl, NV_UNIQUE_NAME, 0) != 0)
1203 nomem();
1204
1205 *at = '\0';
1206 zhp = zfs_open(g_zfs, argv[0],
1207 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1208 if (zhp == NULL)
34dc7c2f 1209 return (1);
34dc7c2f 1210
330d06f9
MA		 1211 cb.cb_snapspec = at + 1;
1212 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1213 cb.cb_error) {
1214 zfs_close(zhp);
1215 nvlist_free(cb.cb_nvl);
1216 return (1);
1217 }
428870ff 1218
330d06f9
MA		 1219 if (nvlist_empty(cb.cb_nvl)) {
1220 (void) fprintf(stderr, gettext("could not find any "
1221 "snapshots to destroy; check snapshot names.\n"));
1222 zfs_close(zhp);
1223 nvlist_free(cb.cb_nvl);
1224 return (1);
1225 }
1226
1227 if (cb.cb_verbose) {
1228 char buf[16];
1229 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1230 if (cb.cb_parsable) {
1231 (void) printf("reclaim\t%llu\n",
1232 (u_longlong_t)cb.cb_snapused);
1233 } else if (cb.cb_dryrun) {
1234 (void) printf(gettext("would reclaim %s\n"),
1235 buf);
1236 } else {
1237 (void) printf(gettext("will reclaim %s\n"),
1238 buf);
34dc7c2f
BB		 1239 }
1240 }
1241
330d06f9
MA		 1242 if (!cb.cb_dryrun) {
1243 if (cb.cb_doclones)
1244 err = destroy_clones(&cb);
1245 if (err == 0) {
1246 err = zfs_destroy_snaps_nvl(zhp, cb.cb_nvl,
1247 cb.cb_defer_destroy);
1248 }
34dc7c2f 1249 }
34dc7c2f 1250
330d06f9
MA		 1251 zfs_close(zhp);
1252 nvlist_free(cb.cb_nvl);
1253 if (err != 0)
1254 return (1);
1255 } else {
1256 /* Open the given dataset */
1257 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1258 return (1);
34dc7c2f 1259
330d06f9 1260 cb.cb_target = zhp;
34dc7c2f 1261
330d06f9
MA		 1262 /*
1263 * Perform an explicit check for pools before going any further.
1264 */
1265 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1266 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1267 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1268 "operation does not apply to pools\n"),
1269 zfs_get_name(zhp));
1270 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1271 "%s' to destroy all datasets in the pool\n"),
1272 zfs_get_name(zhp));
1273 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1274 "to destroy the pool itself\n"), zfs_get_name(zhp));
1275 zfs_close(zhp);
1276 return (1);
1277 }
34dc7c2f 1278
330d06f9
MA		 1279 /*
1280 * Check for any dependents and/or clones.
1281 */
1282 cb.cb_first = B_TRUE;
1283 if (!cb.cb_doclones &&
1284 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1285 &cb) != 0) {
1286 zfs_close(zhp);
1287 return (1);
1288 }
34dc7c2f 1289
330d06f9
MA		 1290 if (cb.cb_error) {
1291 zfs_close(zhp);
1292 return (1);
1293 }
34dc7c2f 1294
330d06f9
MA		 1295 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1296 &cb) != 0) {
1297 zfs_close(zhp);
1298 return (1);
1299 }
34dc7c2f 1300
330d06f9
MA		 1301 /*
1302 * Do the real thing. The callback will close the
1303 * handle regardless of whether it succeeds or not.
1304 */
1305 if (destroy_callback(zhp, &cb) != 0)
1306 return (1);
1307 }
34dc7c2f 1308
34dc7c2f
BB		 1309 return (0);
1310}
1311
428870ff
BB		 1312static boolean_t
1313is_recvd_column(zprop_get_cbdata_t *cbp)
1314{
1315 int i;
1316 zfs_get_column_t col;
1317
1318 for (i = 0; i < ZFS_GET_NCOLS &&
1319 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1320 if (col == GET_COL_RECVD)
1321 return (B_TRUE);
1322 return (B_FALSE);
1323}
1324
34dc7c2f 1325/*
428870ff
BB		 1326 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1327 * < all | property[,property]... > < fs | snap | vol > ...
34dc7c2f
BB		 1328 *
1329 * -r recurse over any child datasets
1330 * -H scripted mode. Headers are stripped, and fields are separated
1331 * by tabs instead of spaces.
428870ff
BB		 1332 * -o Set of fields to display. One of "name,property,value,
1333 * received,source". Default is "name,property,value,source".
1334 * "all" is an alias for all five.
34dc7c2f 1335 * -s Set of sources to allow. One of
428870ff
BB		 1336 * "local,default,inherited,received,temporary,none". Default is
1337 * all six.
34dc7c2f
BB		 1338 * -p Display values in parsable (literal) format.
1339 *
1340 * Prints properties for the given datasets. The user can control which
1341 * columns to display as well as which property types to allow.
1342 */
1343
1344/*
1345 * Invoked to display the properties for a single dataset.
1346 */
1347static int
1348get_callback(zfs_handle_t *zhp, void *data)
1349{
1350 char buf[ZFS_MAXPROPLEN];
428870ff 1351 char rbuf[ZFS_MAXPROPLEN];
34dc7c2f
BB		 1352 zprop_source_t sourcetype;
1353 char source[ZFS_MAXNAMELEN];
1354 zprop_get_cbdata_t *cbp = data;
428870ff 1355 nvlist_t *user_props = zfs_get_user_props(zhp);
34dc7c2f
BB		 1356 zprop_list_t *pl = cbp->cb_proplist;
1357 nvlist_t *propval;
1358 char *strval;
1359 char *sourceval;
428870ff 1360 boolean_t received = is_recvd_column(cbp);
34dc7c2f
BB		 1361
1362 for (; pl != NULL; pl = pl->pl_next) {
428870ff 1363 char *recvdval = NULL;
34dc7c2f
BB		 1364 /*
1365 * Skip the special fake placeholder. This will also skip over
1366 * the name property when 'all' is specified.
1367 */
1368 if (pl->pl_prop == ZFS_PROP_NAME &&
1369 pl == cbp->cb_proplist)
1370 continue;
1371
1372 if (pl->pl_prop != ZPROP_INVAL) {
1373 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1374 sizeof (buf), &sourcetype, source,
1375 sizeof (source),
1376 cbp->cb_literal) != 0) {
1377 if (pl->pl_all)
1378 continue;
1379 if (!zfs_prop_valid_for_type(pl->pl_prop,
1380 ZFS_TYPE_DATASET)) {
1381 (void) fprintf(stderr,
1382 gettext("No such property '%s'\n"),
1383 zfs_prop_to_name(pl->pl_prop));
1384 continue;
1385 }
1386 sourcetype = ZPROP_SRC_NONE;
1387 (void) strlcpy(buf, "-", sizeof (buf));
1388 }
1389
428870ff
BB		 1390 if (received && (zfs_prop_get_recvd(zhp,
1391 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1392 cbp->cb_literal) == 0))
1393 recvdval = rbuf;
1394
34dc7c2f
BB		 1395 zprop_print_one_property(zfs_get_name(zhp), cbp,
1396 zfs_prop_to_name(pl->pl_prop),
428870ff 1397 buf, sourcetype, source, recvdval);
9babb374
BB		 1398 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1399 sourcetype = ZPROP_SRC_LOCAL;
1400
1401 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1402 buf, sizeof (buf), cbp->cb_literal) != 0) {
1403 sourcetype = ZPROP_SRC_NONE;
1404 (void) strlcpy(buf, "-", sizeof (buf));
1405 }
1406
330d06f9
MA		 1407 zprop_print_one_property(zfs_get_name(zhp), cbp,
1408 pl->pl_user_prop, buf, sourcetype, source, NULL);
1409 } else if (zfs_prop_written(pl->pl_user_prop)) {
1410 sourcetype = ZPROP_SRC_LOCAL;
1411
1412 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1413 buf, sizeof (buf), cbp->cb_literal) != 0) {
1414 sourcetype = ZPROP_SRC_NONE;
1415 (void) strlcpy(buf, "-", sizeof (buf));
1416 }
1417
9babb374 1418 zprop_print_one_property(zfs_get_name(zhp), cbp,
428870ff 1419 pl->pl_user_prop, buf, sourcetype, source, NULL);
34dc7c2f 1420 } else {
428870ff 1421 if (nvlist_lookup_nvlist(user_props,
34dc7c2f
BB		 1422 pl->pl_user_prop, &propval) != 0) {
1423 if (pl->pl_all)
1424 continue;
1425 sourcetype = ZPROP_SRC_NONE;
1426 strval = "-";
1427 } else {
1428 verify(nvlist_lookup_string(propval,
1429 ZPROP_VALUE, &strval) == 0);
1430 verify(nvlist_lookup_string(propval,
1431 ZPROP_SOURCE, &sourceval) == 0);
1432
1433 if (strcmp(sourceval,
1434 zfs_get_name(zhp)) == 0) {
1435 sourcetype = ZPROP_SRC_LOCAL;
428870ff
BB		 1436 } else if (strcmp(sourceval,
1437 ZPROP_SOURCE_VAL_RECVD) == 0) {
1438 sourcetype = ZPROP_SRC_RECEIVED;
34dc7c2f
BB		 1439 } else {
1440 sourcetype = ZPROP_SRC_INHERITED;
1441 (void) strlcpy(source,
1442 sourceval, sizeof (source));
1443 }
1444 }
1445
428870ff
BB		 1446 if (received && (zfs_prop_get_recvd(zhp,
1447 pl->pl_user_prop, rbuf, sizeof (rbuf),
1448 cbp->cb_literal) == 0))
1449 recvdval = rbuf;
1450
34dc7c2f
BB		 1451 zprop_print_one_property(zfs_get_name(zhp), cbp,
1452 pl->pl_user_prop, strval, sourcetype,
428870ff 1453 source, recvdval);
34dc7c2f
BB		 1454 }
1455 }
1456
1457 return (0);
1458}
1459
1460static int
1461zfs_do_get(int argc, char **argv)
1462{
1463 zprop_get_cbdata_t cb = { 0 };
bb939d10 1464 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
e346ec25 1465 int types = ZFS_TYPE_DATASET;
34dc7c2f 1466 char *value, *fields;
ad60af8e 1467 int ret = 0;
9babb374 1468 int limit = 0;
34dc7c2f
BB		 1469 zprop_list_t fake_name = { 0 };
1470
1471 /*
1472 * Set up default columns and sources.
1473 */
1474 cb.cb_sources = ZPROP_SRC_ALL;
1475 cb.cb_columns[0] = GET_COL_NAME;
1476 cb.cb_columns[1] = GET_COL_PROPERTY;
1477 cb.cb_columns[2] = GET_COL_VALUE;
1478 cb.cb_columns[3] = GET_COL_SOURCE;
1479 cb.cb_type = ZFS_TYPE_DATASET;
1480
1481 /* check options */
e346ec25 1482 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
34dc7c2f
BB		 1483 switch (c) {
1484 case 'p':
1485 cb.cb_literal = B_TRUE;
1486 break;
9babb374
BB		 1487 case 'd':
1488 limit = parse_depth(optarg, &flags);
1489 break;
34dc7c2f 1490 case 'r':
b128c09f 1491 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 1492 break;
1493 case 'H':
1494 cb.cb_scripted = B_TRUE;
1495 break;
1496 case ':':
1497 (void) fprintf(stderr, gettext("missing argument for "
1498 "'%c' option\n"), optopt);
1499 usage(B_FALSE);
1500 break;
1501 case 'o':
1502 /*
1503 * Process the set of columns to display. We zero out
1504 * the structure to give us a blank slate.
1505 */
1506 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1507 i = 0;
1508 while (*optarg != '\0') {
1509 static char *col_subopts[] =
428870ff
BB		 1510 { "name", "property", "value", "received",
1511 "source", "all", NULL };
34dc7c2f 1512
428870ff 1513 if (i == ZFS_GET_NCOLS) {
34dc7c2f
BB		 1514 (void) fprintf(stderr, gettext("too "
1515 "many fields given to -o "
1516 "option\n"));
1517 usage(B_FALSE);
1518 }
1519
1520 switch (getsubopt(&optarg, col_subopts,
1521 &value)) {
1522 case 0:
1523 cb.cb_columns[i++] = GET_COL_NAME;
1524 break;
1525 case 1:
1526 cb.cb_columns[i++] = GET_COL_PROPERTY;
1527 break;
1528 case 2:
1529 cb.cb_columns[i++] = GET_COL_VALUE;
1530 break;
1531 case 3:
428870ff
BB		 1532 cb.cb_columns[i++] = GET_COL_RECVD;
1533 flags |= ZFS_ITER_RECVD_PROPS;
1534 break;
1535 case 4:
34dc7c2f
BB		 1536 cb.cb_columns[i++] = GET_COL_SOURCE;
1537 break;
428870ff
BB		 1538 case 5:
1539 if (i > 0) {
1540 (void) fprintf(stderr,
1541 gettext("\"all\" conflicts "
1542 "with specific fields "
1543 "given to -o option\n"));
1544 usage(B_FALSE);
1545 }
1546 cb.cb_columns[0] = GET_COL_NAME;
1547 cb.cb_columns[1] = GET_COL_PROPERTY;
1548 cb.cb_columns[2] = GET_COL_VALUE;
1549 cb.cb_columns[3] = GET_COL_RECVD;
1550 cb.cb_columns[4] = GET_COL_SOURCE;
1551 flags |= ZFS_ITER_RECVD_PROPS;
1552 i = ZFS_GET_NCOLS;
1553 break;
34dc7c2f
BB		 1554 default:
1555 (void) fprintf(stderr,
1556 gettext("invalid column name "
1557 "'%s'\n"), value);
1558 usage(B_FALSE);
1559 }
1560 }
1561 break;
1562
1563 case 's':
1564 cb.cb_sources = 0;
1565 while (*optarg != '\0') {
1566 static char *source_subopts[] = {
1567 "local", "default", "inherited",
428870ff
BB		 1568 "received", "temporary", "none",
1569 NULL };
34dc7c2f
BB		 1570
1571 switch (getsubopt(&optarg, source_subopts,
1572 &value)) {
1573 case 0:
1574 cb.cb_sources |= ZPROP_SRC_LOCAL;
1575 break;
1576 case 1:
1577 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1578 break;
1579 case 2:
1580 cb.cb_sources |= ZPROP_SRC_INHERITED;
1581 break;
1582 case 3:
428870ff 1583 cb.cb_sources |= ZPROP_SRC_RECEIVED;
34dc7c2f
BB		 1584 break;
1585 case 4:
428870ff
BB		 1586 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1587 break;
1588 case 5:
34dc7c2f
BB		 1589 cb.cb_sources |= ZPROP_SRC_NONE;
1590 break;
1591 default:
1592 (void) fprintf(stderr,
1593 gettext("invalid source "
1594 "'%s'\n"), value);
1595 usage(B_FALSE);
1596 }
1597 }
1598 break;
1599
e346ec25
AS		 1600 case 't':
1601 types = 0;
1602 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1603 while (*optarg != '\0') {
1604 static char *type_subopts[] = { "filesystem",
1605 "volume", "snapshot", "all", NULL };
1606
1607 switch (getsubopt(&optarg, type_subopts,
1608 &value)) {
1609 case 0:
1610 types |= ZFS_TYPE_FILESYSTEM;
1611 break;
1612 case 1:
1613 types |= ZFS_TYPE_VOLUME;
1614 break;
1615 case 2:
1616 types |= ZFS_TYPE_SNAPSHOT;
1617 break;
1618 case 3:
1619 types = ZFS_TYPE_DATASET;
1620 break;
1621
1622 default:
1623 (void) fprintf(stderr,
1624 gettext("invalid type '%s'\n"),
1625 value);
1626 usage(B_FALSE);
1627 }
1628 }
1629 break;
1630
34dc7c2f
BB		 1631 case '?':
1632 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1633 optopt);
1634 usage(B_FALSE);
1635 }
1636 }
1637
1638 argc -= optind;
1639 argv += optind;
1640
1641 if (argc < 1) {
1642 (void) fprintf(stderr, gettext("missing property "
1643 "argument\n"));
1644 usage(B_FALSE);
1645 }
1646
1647 fields = argv[0];
1648
1649 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1650 != 0)
1651 usage(B_FALSE);
1652
1653 argc--;
1654 argv++;
1655
1656 /*
1657 * As part of zfs_expand_proplist(), we keep track of the maximum column
1658 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1659 * need to know the maximum name length. However, the user likely did
1660 * not specify 'name' as one of the properties to fetch, so we need to
1661 * make sure we always include at least this property for
1662 * print_get_headers() to work properly.
1663 */
1664 if (cb.cb_proplist != NULL) {
1665 fake_name.pl_prop = ZFS_PROP_NAME;
1666 fake_name.pl_width = strlen(gettext("NAME"));
1667 fake_name.pl_next = cb.cb_proplist;
1668 cb.cb_proplist = &fake_name;
1669 }
1670
1671 cb.cb_first = B_TRUE;
1672
1673 /* run for each object */
e346ec25 1674 ret = zfs_for_each(argc, argv, flags, types, NULL,
9babb374 1675 &cb.cb_proplist, limit, get_callback, &cb);
34dc7c2f
BB		 1676
1677 if (cb.cb_proplist == &fake_name)
1678 zprop_free_list(fake_name.pl_next);
1679 else
1680 zprop_free_list(cb.cb_proplist);
1681
1682 return (ret);
1683}
1684
1685/*
428870ff 1686 * inherit [-rS] <property> <fs|vol> ...
34dc7c2f 1687 *
428870ff
BB		 1688 * -r Recurse over all children
1689 * -S Revert to received value, if any
34dc7c2f
BB		 1690 *
1691 * For each dataset specified on the command line, inherit the given property
1692 * from its parent. Inheriting a property at the pool level will cause it to
1693 * use the default value. The '-r' flag will recurse over all children, and is
1694 * useful for setting a property on a hierarchy-wide basis, regardless of any
1695 * local modifications for each dataset.
1696 */
1697
428870ff
BB		 1698typedef struct inherit_cbdata {
1699 const char *cb_propname;
1700 boolean_t cb_received;
1701} inherit_cbdata_t;
1702
34dc7c2f 1703static int
b128c09f 1704inherit_recurse_cb(zfs_handle_t *zhp, void *data)
34dc7c2f 1705{
428870ff
BB		 1706 inherit_cbdata_t *cb = data;
1707 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
34dc7c2f 1708
b128c09f
BB		 1709 /*
1710 * If we're doing it recursively, then ignore properties that
1711 * are not valid for this type of dataset.
1712 */
1713 if (prop != ZPROP_INVAL &&
1714 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp)))
1715 return (0);
1716
428870ff 1717 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
b128c09f
BB		 1718}
1719
1720static int
1721inherit_cb(zfs_handle_t *zhp, void *data)
1722{
428870ff 1723 inherit_cbdata_t *cb = data;
b128c09f 1724
428870ff 1725 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
34dc7c2f
BB		 1726}
1727
1728static int
1729zfs_do_inherit(int argc, char **argv)
1730{
34dc7c2f
BB		 1731 int c;
1732 zfs_prop_t prop;
428870ff 1733 inherit_cbdata_t cb = { 0 };
34dc7c2f 1734 char *propname;
ad60af8e 1735 int ret = 0;
b128c09f 1736 int flags = 0;
428870ff 1737 boolean_t received = B_FALSE;
34dc7c2f
BB		 1738
1739 /* check options */
428870ff 1740 while ((c = getopt(argc, argv, "rS")) != -1) {
34dc7c2f
BB		 1741 switch (c) {
1742 case 'r':
b128c09f 1743 flags |= ZFS_ITER_RECURSE;
34dc7c2f 1744 break;
428870ff
BB		 1745 case 'S':
1746 received = B_TRUE;
1747 break;
34dc7c2f
BB		 1748 case '?':
1749 default:
1750 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1751 optopt);
1752 usage(B_FALSE);
1753 }
1754 }
1755
1756 argc -= optind;
1757 argv += optind;
1758
1759 /* check number of arguments */
1760 if (argc < 1) {
1761 (void) fprintf(stderr, gettext("missing property argument\n"));
1762 usage(B_FALSE);
1763 }
1764 if (argc < 2) {
1765 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1766 usage(B_FALSE);
1767 }
1768
1769 propname = argv[0];
1770 argc--;
1771 argv++;
1772
1773 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1774 if (zfs_prop_readonly(prop)) {
1775 (void) fprintf(stderr, gettext(
1776 "%s property is read-only\n"),
1777 propname);
1778 return (1);
1779 }
428870ff 1780 if (!zfs_prop_inheritable(prop) && !received) {
34dc7c2f
BB		 1781 (void) fprintf(stderr, gettext("'%s' property cannot "
1782 "be inherited\n"), propname);
1783 if (prop == ZFS_PROP_QUOTA ||
1784 prop == ZFS_PROP_RESERVATION ||
1785 prop == ZFS_PROP_REFQUOTA ||
1786 prop == ZFS_PROP_REFRESERVATION)
1787 (void) fprintf(stderr, gettext("use 'zfs set "
1788 "%s=none' to clear\n"), propname);
1789 return (1);
1790 }
428870ff
BB		 1791 if (received && (prop == ZFS_PROP_VOLSIZE ||
1792 prop == ZFS_PROP_VERSION)) {
1793 (void) fprintf(stderr, gettext("'%s' property cannot "
1794 "be reverted to a received value\n"), propname);
1795 return (1);
1796 }
34dc7c2f
BB		 1797 } else if (!zfs_prop_user(propname)) {
1798 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1799 propname);
1800 usage(B_FALSE);
1801 }
1802
428870ff
BB		 1803 cb.cb_propname = propname;
1804 cb.cb_received = received;
1805
b128c09f
BB		 1806 if (flags & ZFS_ITER_RECURSE) {
1807 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
428870ff 1808 NULL, NULL, 0, inherit_recurse_cb, &cb);
b128c09f
BB		 1809 } else {
1810 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
428870ff 1811 NULL, NULL, 0, inherit_cb, &cb);
b128c09f 1812 }
34dc7c2f
BB		 1813
1814 return (ret);
1815}
1816
1817typedef struct upgrade_cbdata {
1818 uint64_t cb_numupgraded;
1819 uint64_t cb_numsamegraded;
1820 uint64_t cb_numfailed;
1821 uint64_t cb_version;
1822 boolean_t cb_newer;
1823 boolean_t cb_foundone;
1824 char cb_lastfs[ZFS_MAXNAMELEN];
1825} upgrade_cbdata_t;
1826
1827static int
1828same_pool(zfs_handle_t *zhp, const char *name)
1829{
1830 int len1 = strcspn(name, "/@");
1831 const char *zhname = zfs_get_name(zhp);
1832 int len2 = strcspn(zhname, "/@");
1833
1834 if (len1 != len2)
1835 return (B_FALSE);
1836 return (strncmp(name, zhname, len1) == 0);
1837}
1838
1839static int
1840upgrade_list_callback(zfs_handle_t *zhp, void *data)
1841{
1842 upgrade_cbdata_t *cb = data;
1843 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1844
1845 /* list if it's old/new */
1846 if ((!cb->cb_newer && version < ZPL_VERSION) ||
1847 (cb->cb_newer && version > ZPL_VERSION)) {
1848 char *str;
1849 if (cb->cb_newer) {
1850 str = gettext("The following filesystems are "
1851 "formatted using a newer software version and\n"
1852 "cannot be accessed on the current system.\n\n");
1853 } else {
1854 str = gettext("The following filesystems are "
1855 "out of date, and can be upgraded. After being\n"
1856 "upgraded, these filesystems (and any 'zfs send' "
1857 "streams generated from\n"
1858 "subsequent snapshots) will no longer be "
1859 "accessible by older software versions.\n\n");
1860 }
1861
1862 if (!cb->cb_foundone) {
1863 (void) puts(str);
1864 (void) printf(gettext("VER FILESYSTEM\n"));
1865 (void) printf(gettext("--- ------------\n"));
1866 cb->cb_foundone = B_TRUE;
1867 }
1868
1869 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
1870 }
1871
1872 return (0);
1873}
1874
1875static int
1876upgrade_set_callback(zfs_handle_t *zhp, void *data)
1877{
1878 upgrade_cbdata_t *cb = data;
1879 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
428870ff
BB		 1880 int needed_spa_version;
1881 int spa_version;
1882
1883 if (zfs_spa_version(zhp, &spa_version) < 0)
1884 return (-1);
1885
1886 needed_spa_version = zfs_spa_version_map(cb->cb_version);
1887
1888 if (needed_spa_version < 0)
1889 return (-1);
1890
1891 if (spa_version < needed_spa_version) {
1892 /* can't upgrade */
1893 (void) printf(gettext("%s: can not be "
1894 "upgraded; the pool version needs to first "
1895 "be upgraded\nto version %d\n\n"),
1896 zfs_get_name(zhp), needed_spa_version);
1897 cb->cb_numfailed++;
1898 return (0);
34dc7c2f
BB		 1899 }
1900
1901 /* upgrade */
1902 if (version < cb->cb_version) {
1903 char verstr[16];
1904 (void) snprintf(verstr, sizeof (verstr),
b8864a23 1905 "%llu", (u_longlong_t)cb->cb_version);
34dc7c2f
BB		 1906 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
1907 /*
1908 * If they did "zfs upgrade -a", then we could
1909 * be doing ioctls to different pools. We need
1910 * to log this history once to each pool.
1911 */
1912 verify(zpool_stage_history(g_zfs, history_str) == 0);
1913 }
1914 if (zfs_prop_set(zhp, "version", verstr) == 0)
1915 cb->cb_numupgraded++;
1916 else
1917 cb->cb_numfailed++;
1918 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
1919 } else if (version > cb->cb_version) {
1920 /* can't downgrade */
1921 (void) printf(gettext("%s: can not be downgraded; "
1922 "it is already at version %u\n"),
1923 zfs_get_name(zhp), version);
1924 cb->cb_numfailed++;
1925 } else {
1926 cb->cb_numsamegraded++;
1927 }
1928 return (0);
1929}
1930
1931/*
1932 * zfs upgrade
1933 * zfs upgrade -v
1934 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
1935 */
1936static int
1937zfs_do_upgrade(int argc, char **argv)
1938{
34dc7c2f
BB		 1939 boolean_t all = B_FALSE;
1940 boolean_t showversions = B_FALSE;
ad60af8e 1941 int ret = 0;
34dc7c2f 1942 upgrade_cbdata_t cb = { 0 };
b8864a23 1943 signed char c;
b128c09f 1944 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
34dc7c2f
BB		 1945
1946 /* check options */
1947 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
1948 switch (c) {
1949 case 'r':
b128c09f 1950 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 1951 break;
1952 case 'v':
1953 showversions = B_TRUE;
1954 break;
1955 case 'V':
1956 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
1957 optarg, &cb.cb_version) != 0) {
1958 (void) fprintf(stderr,
1959 gettext("invalid version %s\n"), optarg);
1960 usage(B_FALSE);
1961 }
1962 break;
1963 case 'a':
1964 all = B_TRUE;
1965 break;
1966 case '?':
1967 default:
1968 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1969 optopt);
1970 usage(B_FALSE);
1971 }
1972 }
1973
1974 argc -= optind;
1975 argv += optind;
1976
b128c09f 1977 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
34dc7c2f 1978 usage(B_FALSE);
b128c09f
BB		 1979 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
1980 cb.cb_version || argc))
34dc7c2f
BB		 1981 usage(B_FALSE);
1982 if ((all || argc) && (showversions))
1983 usage(B_FALSE);
1984 if (all && argc)
1985 usage(B_FALSE);
1986
1987 if (showversions) {
1988 /* Show info on available versions. */
1989 (void) printf(gettext("The following filesystem versions are "
1990 "supported:\n\n"));
1991 (void) printf(gettext("VER DESCRIPTION\n"));
1992 (void) printf("--- -----------------------------------------"
1993 "---------------\n");
1994 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
1995 (void) printf(gettext(" 2 Enhanced directory entries\n"));
330d06f9
MA		 1996 (void) printf(gettext(" 3 Case insensitive and filesystem "
1997 "user identifier (FUID)\n"));
9babb374
BB		 1998 (void) printf(gettext(" 4 userquota, groupquota "
1999 "properties\n"));
428870ff 2000 (void) printf(gettext(" 5 System attributes\n"));
34dc7c2f 2001 (void) printf(gettext("\nFor more information on a particular "
428870ff
BB		 2002 "version, including supported releases,\n"));
2003 (void) printf("see the ZFS Administration Guide.\n\n");
34dc7c2f
BB		 2004 ret = 0;
2005 } else if (argc || all) {
2006 /* Upgrade filesystems */
2007 if (cb.cb_version == 0)
2008 cb.cb_version = ZPL_VERSION;
b128c09f 2009 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
9babb374 2010 NULL, NULL, 0, upgrade_set_callback, &cb);
34dc7c2f 2011 (void) printf(gettext("%llu filesystems upgraded\n"),
b8864a23 2012 (u_longlong_t)cb.cb_numupgraded);
34dc7c2f
BB		 2013 if (cb.cb_numsamegraded) {
2014 (void) printf(gettext("%llu filesystems already at "
2015 "this version\n"),
b8864a23 2016 (u_longlong_t)cb.cb_numsamegraded);
34dc7c2f
BB		 2017 }
2018 if (cb.cb_numfailed != 0)
2019 ret = 1;
2020 } else {
2021 /* List old-version filesytems */
2022 boolean_t found;
2023 (void) printf(gettext("This system is currently running "
2024 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2025
b128c09f
BB		 2026 flags |= ZFS_ITER_RECURSE;
2027 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
9babb374 2028 NULL, NULL, 0, upgrade_list_callback, &cb);
34dc7c2f
BB		 2029
2030 found = cb.cb_foundone;
2031 cb.cb_foundone = B_FALSE;
2032 cb.cb_newer = B_TRUE;
2033
b128c09f 2034 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
9babb374 2035 NULL, NULL, 0, upgrade_list_callback, &cb);
34dc7c2f
BB		 2036
2037 if (!cb.cb_foundone && !found) {
2038 (void) printf(gettext("All filesystems are "
2039 "formatted with the current version.\n"));
2040 }
2041 }
2042
2043 return (ret);
2044}
2045
5990da81
YP		 2046/*
2047 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2048 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2049 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2050 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2051 *
2052 * -H Scripted mode; elide headers and separate columns by tabs.
2053 * -i Translate SID to POSIX ID.
2054 * -n Print numeric ID instead of user/group name.
2055 * -o Control which fields to display.
2056 * -p Use exact (parseable) numeric output.
2057 * -s Specify sort columns, descending order.
2058 * -S Specify sort columns, ascending order.
2059 * -t Control which object types to display.
2060 *
2061 * Displays space consumed by, and quotas on, each user in the specified
2062 * filesystem or snapshot.
2063 */
0b7936d5 2064
5990da81
YP		 2065/* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2066enum us_field_types {
2067 USFIELD_TYPE,
2068 USFIELD_NAME,
2069 USFIELD_USED,
2070 USFIELD_QUOTA
2071};
2072static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2073static char *us_field_names[] = { "type", "name", "used", "quota" };
2074#define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
0b7936d5 2075
5990da81
YP		 2076#define USTYPE_PSX_GRP (1 << 0)
2077#define USTYPE_PSX_USR (1 << 1)
2078#define USTYPE_SMB_GRP (1 << 2)
2079#define USTYPE_SMB_USR (1 << 3)
2080#define USTYPE_ALL \
2081 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
0b7936d5 2082
5990da81
YP		 2083static int us_type_bits[] = {
2084 USTYPE_PSX_GRP,
2085 USTYPE_PSX_USR,
2086 USTYPE_SMB_GRP,
2087 USTYPE_SMB_USR,
2088 USTYPE_ALL
2089};
2090static char *us_type_names[] = { "posixgroup", "posxiuser", "smbgroup",
2091 "smbuser", "all" };
0b7936d5
AS		 2092
2093typedef struct us_node {
2094 nvlist_t *usn_nvl;
2095 uu_avl_node_t usn_avlnode;
2096 uu_list_node_t usn_listnode;
2097} us_node_t;
2098
2099typedef struct us_cbdata {
5990da81
YP		 2100 nvlist_t **cb_nvlp;
2101 uu_avl_pool_t *cb_avl_pool;
2102 uu_avl_t *cb_avl;
2103 boolean_t cb_numname;
2104 boolean_t cb_nicenum;
2105 boolean_t cb_sid2posix;
2106 zfs_userquota_prop_t cb_prop;
2107 zfs_sort_column_t *cb_sortcol;
2108 size_t cb_width[USFIELD_LAST];
0b7936d5
AS		 2109} us_cbdata_t;
2110
5990da81
YP		 2111static boolean_t us_populated = B_FALSE;
2112
0b7936d5
AS		 2113typedef struct {
2114 zfs_sort_column_t *si_sortcol;
5990da81 2115 boolean_t si_numname;
0b7936d5
AS		 2116} us_sort_info_t;
2117
5990da81
YP		 2118static int
2119us_field_index(char *field)
2120{
2121 int i;
2122
2123 for (i = 0; i < USFIELD_LAST; i++) {
2124 if (strcmp(field, us_field_names[i]) == 0)
2125 return (i);
2126 }
2127
2128 return (-1);
2129}
2130
0b7936d5
AS		 2131static int
2132us_compare(const void *larg, const void *rarg, void *unused)
2133{
2134 const us_node_t *l = larg;
2135 const us_node_t *r = rarg;
0b7936d5
AS		 2136 us_sort_info_t *si = (us_sort_info_t *)unused;
2137 zfs_sort_column_t *sortcol = si->si_sortcol;
5990da81 2138 boolean_t numname = si->si_numname;
0b7936d5
AS		 2139 nvlist_t *lnvl = l->usn_nvl;
2140 nvlist_t *rnvl = r->usn_nvl;
5990da81
YP		 2141 int rc = 0;
2142 boolean_t lvb, rvb;
0b7936d5
AS		 2143
2144 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2145 char *lvstr = "";
2146 char *rvstr = "";
2147 uint32_t lv32 = 0;
2148 uint32_t rv32 = 0;
2149 uint64_t lv64 = 0;
2150 uint64_t rv64 = 0;
2151 zfs_prop_t prop = sortcol->sc_prop;
2152 const char *propname = NULL;
2153 boolean_t reverse = sortcol->sc_reverse;
2154
2155 switch (prop) {
2156 case ZFS_PROP_TYPE:
2157 propname = "type";
2158 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2159 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2160 if (rv32 != lv32)
5990da81 2161 rc = (rv32 < lv32) ? 1 : -1;
0b7936d5
AS		 2162 break;
2163 case ZFS_PROP_NAME:
2164 propname = "name";
5990da81
YP		 2165 if (numname) {
2166 (void) nvlist_lookup_uint64(lnvl, propname,
2167 &lv64);
2168 (void) nvlist_lookup_uint64(rnvl, propname,
2169 &rv64);
2170 if (rv64 != lv64)
2171 rc = (rv64 < lv64) ? 1 : -1;
0b7936d5
AS		 2172 } else {
2173 (void) nvlist_lookup_string(lnvl, propname,
2174 &lvstr);
2175 (void) nvlist_lookup_string(rnvl, propname,
2176 &rvstr);
2177 rc = strcmp(lvstr, rvstr);
2178 }
2179 break;
0b7936d5
AS		 2180 case ZFS_PROP_USED:
2181 case ZFS_PROP_QUOTA:
5990da81
YP		 2182 if (!us_populated)
2183 break;
2184 if (prop == ZFS_PROP_USED)
0b7936d5
AS		 2185 propname = "used";
2186 else
2187 propname = "quota";
2188 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2189 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2190 if (rv64 != lv64)
5990da81
YP		 2191 rc = (rv64 < lv64) ? 1 : -1;
2192 break;
0b7936d5
AS		 2193 default:
2194 break;
2195 }
2196
5990da81 2197 if (rc != 0) {
0b7936d5
AS		 2198 if (rc < 0)
2199 return (reverse ? 1 : -1);
2200 else
2201 return (reverse ? -1 : 1);
2202 }
2203 }
2204
5990da81
YP		 2205 /*
2206 * If entries still seem to be the same, check if they are of the same
2207 * type (smbentity is added only if we are doing SID to POSIX ID
2208 * translation where we can have duplicate type/name combinations).
2209 */
2210 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2211 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2212 lvb != rvb)
2213 return (lvb < rvb ? -1 : 1);
2214
2215 return (0);
0b7936d5
AS		 2216}
2217
2218static inline const char *
2219us_type2str(unsigned field_type)
2220{
2221 switch (field_type) {
2222 case USTYPE_PSX_USR:
2223 return ("POSIX User");
2224 case USTYPE_PSX_GRP:
2225 return ("POSIX Group");
2226 case USTYPE_SMB_USR:
2227 return ("SMB User");
2228 case USTYPE_SMB_GRP:
2229 return ("SMB Group");
2230 default:
2231 return ("Undefined");
2232 }
2233}
2234
9babb374
BB		 2235static int
2236userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2237{
0b7936d5
AS		 2238 us_cbdata_t *cb = (us_cbdata_t *)arg;
2239 zfs_userquota_prop_t prop = cb->cb_prop;
9babb374 2240 char *name = NULL;
0b7936d5 2241 char *propname;
9babb374 2242 char sizebuf[32];
0b7936d5
AS		 2243 us_node_t *node;
2244 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2245 uu_avl_t *avl = cb->cb_avl;
2246 uu_avl_index_t idx;
2247 nvlist_t *props;
2248 us_node_t *n;
2249 zfs_sort_column_t *sortcol = cb->cb_sortcol;
5990da81 2250 unsigned type = 0;
0b7936d5
AS		 2251 const char *typestr;
2252 size_t namelen;
2253 size_t typelen;
2254 size_t sizelen;
5990da81 2255 int typeidx, nameidx, sizeidx;
0b7936d5 2256 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
5990da81 2257 boolean_t smbentity = B_FALSE;
9babb374 2258
5990da81
YP		 2259 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2260 nomem();
2261 node = safe_malloc(sizeof (us_node_t));
2262 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2263 node->usn_nvl = props;
2264
2265 if (domain != NULL && domain[0] != '\0') {
0b7936d5 2266#ifdef HAVE_IDMAP
5990da81
YP		 2267 /* SMB */
2268 char sid[ZFS_MAXNAMELEN + 32];
0b7936d5
AS		 2269 uid_t id;
2270 uint64_t classes;
5990da81 2271 int err;
0b7936d5
AS		 2272 directory_error_t e;
2273
5990da81
YP		 2274 smbentity = B_TRUE;
2275
0b7936d5 2276 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
5990da81 2277
0b7936d5
AS		 2278 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2279 type = USTYPE_SMB_GRP;
2280 err = sid_to_id(sid, B_FALSE, &id);
2281 } else {
2282 type = USTYPE_SMB_USR;
2283 err = sid_to_id(sid, B_TRUE, &id);
2284 }
2285
2286 if (err == 0) {
2287 rid = id;
5990da81
YP		 2288 if (!cb->cb_sid2posix) {
2289 e = directory_name_from_sid(NULL, sid, &name,
2290 &classes);
105afebb 2291 if (e != NULL)
5990da81 2292 directory_error_free(e);
5990da81
YP		 2293 if (name == NULL)
2294 name = sid;
0b7936d5 2295 }
0b7936d5
AS		 2296 }
2297#else
5990da81
YP		 2298 nvlist_free(props);
2299 free(node);
2300
0b7936d5
AS		 2301 return (-1);
2302#endif /* HAVE_IDMAP */
9babb374
BB		 2303 }
2304
5990da81
YP		 2305 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2306 /* POSIX or -i */
2307 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2308 type = USTYPE_PSX_GRP;
2309 if (!cb->cb_numname) {
2310 struct group *g;
0b7936d5 2311
5990da81
YP		 2312 if ((g = getgrgid(rid)) != NULL)
2313 name = g->gr_name;
2314 }
2315 } else {
2316 type = USTYPE_PSX_USR;
2317 if (!cb->cb_numname) {
2318 struct passwd *p;
0b7936d5 2319
5990da81
YP		 2320 if ((p = getpwuid(rid)) != NULL)
2321 name = p->pw_name;
2322 }
2323 }
0b7936d5
AS		 2324 }
2325
5990da81
YP		 2326 /*
2327 * Make sure that the type/name combination is unique when doing
2328 * SID to POSIX ID translation (hence changing the type from SMB to
2329 * POSIX).
2330 */
2331 if (cb->cb_sid2posix &&
2332 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2333 nomem();
2334
2335 /* Calculate/update width of TYPE field */
2336 typestr = us_type2str(type);
2337 typelen = strlen(gettext(typestr));
2338 typeidx = us_field_index("type");
2339 if (typelen > cb->cb_width[typeidx])
2340 cb->cb_width[typeidx] = typelen;
0b7936d5
AS		 2341 if (nvlist_add_uint32(props, "type", type) != 0)
2342 nomem();
2343
5990da81
YP		 2344 /* Calculate/update width of NAME field */
2345 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2346 if (nvlist_add_uint64(props, "name", rid) != 0)
0b7936d5 2347 nomem();
5990da81 2348 namelen = snprintf(NULL, 0, "%u", rid);
0b7936d5
AS		 2349 } else {
2350 if (nvlist_add_string(props, "name", name) != 0)
2351 nomem();
2352 namelen = strlen(name);
2353 }
5990da81
YP		 2354 nameidx = us_field_index("name");
2355 if (namelen > cb->cb_width[nameidx])
2356 cb->cb_width[nameidx] = namelen;
0b7936d5 2357
5990da81
YP		 2358 /*
2359 * Check if this type/name combination is in the list and update it;
2360 * otherwise add new node to the list.
2361 */
2362 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
0b7936d5 2363 uu_avl_insert(avl, node, idx);
5990da81 2364 } else {
0b7936d5
AS		 2365 nvlist_free(props);
2366 free(node);
2367 node = n;
2368 props = node->usn_nvl;
9babb374 2369 }
9babb374 2370
5990da81
YP		 2371 /* Calculate/update width of USED/QUOTA fields */
2372 if (cb->cb_nicenum)
2373 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2374 else
2375 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu",
2376 (u_longlong_t)space);
2377 sizelen = strlen(sizebuf);
2378 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2379 propname = "used";
2380 if (!nvlist_exists(props, "quota"))
2381 (void) nvlist_add_uint64(props, "quota", 0);
2382 } else {
2383 propname = "quota";
2384 if (!nvlist_exists(props, "used"))
2385 (void) nvlist_add_uint64(props, "used", 0);
2386 }
2387 sizeidx = us_field_index(propname);
2388 if (sizelen > cb->cb_width[sizeidx])
2389 cb->cb_width[sizeidx] = sizelen;
2390
0b7936d5
AS		 2391 if (nvlist_add_uint64(props, propname, space) != 0)
2392 nomem();
2393
2394 return (0);
2395}
2396
0b7936d5 2397static void
5990da81
YP		 2398print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2399 size_t *width, us_node_t *node)
0b7936d5
AS		 2400{
2401 nvlist_t *nvl = node->usn_nvl;
0b7936d5
AS		 2402 char valstr[ZFS_MAXNAMELEN];
2403 boolean_t first = B_TRUE;
5990da81
YP		 2404 int cfield = 0;
2405 int field;
2406 uint32_t ustype;
2407
2408 /* Check type */
2409 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2410 if (!(ustype & types))
2411 return;
2412
2413 while ((field = fields[cfield]) != USFIELD_LAST) {
2414 nvpair_t *nvp = NULL;
2415 data_type_t type;
2416 uint32_t val32;
2417 uint64_t val64;
0b7936d5 2418 char *strval = NULL;
5990da81
YP		 2419
2420 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2421 if (strcmp(nvpair_name(nvp),
2422 us_field_names[field]) == 0)
0b7936d5 2423 break;
0b7936d5
AS		 2424 }
2425
5990da81 2426 type = nvpair_type(nvp);
0b7936d5
AS		 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:
5990da81 2438 (void) fprintf(stderr, "invalid data type\n");
0b7936d5
AS		 2439 }
2440
2441 switch (field) {
2442 case USFIELD_TYPE:
2443 strval = (char *)us_type2str(val32);
0b7936d5
AS		 2444 break;
2445 case USFIELD_NAME:
2446 if (type == DATA_TYPE_UINT64) {
2447 (void) sprintf(valstr, "%llu",
2448 (u_longlong_t) val64);
2449 strval = valstr;
2450 }
0b7936d5
AS		 2451 break;
2452 case USFIELD_USED:
2453 case USFIELD_QUOTA:
2454 if (type == DATA_TYPE_UINT64) {
5990da81 2455 if (parsable) {
0b7936d5
AS		 2456 (void) sprintf(valstr, "%llu",
2457 (u_longlong_t) val64);
5990da81 2458 } else {
0b7936d5
AS		 2459 zfs_nicenum(val64, valstr,
2460 sizeof (valstr));
5990da81
YP		 2461 }
2462 if (field == USFIELD_QUOTA &&
2463 strcmp(valstr, "0") == 0)
2464 strval = "none";
2465 else
2466 strval = valstr;
0b7936d5 2467 }
0b7936d5
AS		 2468 break;
2469 }
2470
5990da81
YP		 2471 if (!first) {
2472 if (scripted)
2473 (void) printf("\t");
0b7936d5 2474 else
5990da81 2475 (void) printf(" ");
0b7936d5 2476 }
5990da81
YP		 2477 if (scripted)
2478 (void) printf("%s", strval);
2479 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2480 (void) printf("%-*s", (int) width[field], strval);
2481 else
2482 (void) printf("%*s", (int) width[field], strval);
0b7936d5
AS		 2483
2484 first = B_FALSE;
5990da81 2485 cfield++;
0b7936d5
AS		 2486 }
2487
2488 (void) printf("\n");
2489}
2490
2491static void
5990da81
YP		 2492print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2493 size_t *width, boolean_t rmnode, uu_avl_t *avl)
0b7936d5 2494{
0b7936d5
AS		 2495 us_node_t *node;
2496 const char *col;
5990da81
YP		 2497 int cfield = 0;
2498 int field;
0b7936d5
AS		 2499
2500 if (!scripted) {
2501 boolean_t first = B_TRUE;
5990da81
YP		 2502
2503 while ((field = fields[cfield]) != USFIELD_LAST) {
2504 col = gettext(us_field_hdr[field]);
2505 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2506 (void) printf(first ? "%-*s" : " %-*s",
2507 (int) width[field], col);
2508 } else {
2509 (void) printf(first ? "%*s" : " %*s",
2510 (int) width[field], col);
2511 }
0b7936d5 2512 first = B_FALSE;
5990da81 2513 cfield++;
0b7936d5
AS		 2514 }
2515 (void) printf("\n");
2516 }
2517
5990da81
YP		 2518 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2519 print_us_node(scripted, parsable, fields, types, width, node);
0b7936d5
AS		 2520 if (rmnode)
2521 nvlist_free(node->usn_nvl);
2522 }
2523}
2524
9babb374
BB		 2525static int
2526zfs_do_userspace(int argc, char **argv)
2527{
2528 zfs_handle_t *zhp;
2529 zfs_userquota_prop_t p;
0b7936d5
AS		 2530 uu_avl_pool_t *avl_pool;
2531 uu_avl_t *avl_tree;
2532 uu_avl_walk_t *walk;
5990da81
YP		 2533 char *delim;
2534 char deffields[] = "type,name,used,quota";
2535 char *ofield = NULL;
2536 char *tfield = NULL;
2537 int cfield = 0;
2538 int fields[256];
2539 int i;
0b7936d5
AS		 2540 boolean_t scripted = B_FALSE;
2541 boolean_t prtnum = B_FALSE;
5990da81 2542 boolean_t parsable = B_FALSE;
0b7936d5 2543 boolean_t sid2posix = B_FALSE;
105afebb 2544 int ret = 0;
0b7936d5 2545 int c;
0b7936d5 2546 zfs_sort_column_t *sortcol = NULL;
5990da81 2547 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
0b7936d5
AS		 2548 us_cbdata_t cb;
2549 us_node_t *node;
5990da81
YP		 2550 us_node_t *rmnode;
2551 uu_list_pool_t *listpool;
2552 uu_list_t *list;
2553 uu_avl_index_t idx = 0;
2554 uu_list_index_t idx2 = 0;
0b7936d5
AS		 2555
2556 if (argc < 2)
2557 usage(B_FALSE);
2558
5990da81
YP		 2559 if (strcmp(argv[0], "groupspace") == 0)
2560 /* Toggle default group types */
0b7936d5
AS		 2561 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2562
0b7936d5
AS		 2563 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2564 switch (c) {
2565 case 'n':
2566 prtnum = B_TRUE;
2567 break;
2568 case 'H':
2569 scripted = B_TRUE;
2570 break;
2571 case 'p':
5990da81 2572 parsable = B_TRUE;
0b7936d5
AS		 2573 break;
2574 case 'o':
5990da81 2575 ofield = optarg;
0b7936d5
AS		 2576 break;
2577 case 's':
0b7936d5
AS		 2578 case 'S':
2579 if (zfs_add_sort_column(&sortcol, optarg,
5990da81 2580 c == 's' ? B_FALSE : B_TRUE) != 0) {
0b7936d5 2581 (void) fprintf(stderr,
5990da81 2582 gettext("invalid field '%s'\n"), optarg);
0b7936d5
AS		 2583 usage(B_FALSE);
2584 }
2585 break;
2586 case 't':
5990da81 2587 tfield = optarg;
0b7936d5
AS		 2588 break;
2589 case 'i':
2590 sid2posix = B_TRUE;
2591 break;
2592 case ':':
2593 (void) fprintf(stderr, gettext("missing argument for "
2594 "'%c' option\n"), optopt);
2595 usage(B_FALSE);
2596 break;
2597 case '?':
2598 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2599 optopt);
2600 usage(B_FALSE);
2601 }
2602 }
2603
2604 argc -= optind;
2605 argv += optind;
2606
5990da81
YP		 2607 if (argc < 1) {
2608 (void) fprintf(stderr, gettext("missing dataset name\n"));
2609 usage(B_FALSE);
2610 }
2611 if (argc > 1) {
2612 (void) fprintf(stderr, gettext("too many arguments\n"));
2613 usage(B_FALSE);
0b7936d5
AS		 2614 }
2615
5990da81
YP		 2616 /* Use default output fields if not specified using -o */
2617 if (ofield == NULL)
2618 ofield = deffields;
2619 do {
2620 if ((delim = strchr(ofield, ',')) != NULL)
2621 *delim = '\0';
2622 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2623 (void) fprintf(stderr, gettext("invalid type '%s' "
2624 "for -o option\n"), ofield);
2625 return (-1);
2626 }
2627 if (delim != NULL)
2628 ofield = delim + 1;
2629 } while (delim != NULL);
2630 fields[cfield] = USFIELD_LAST;
2631
2632 /* Override output types (-t option) */
2633 if (tfield != NULL) {
2634 types = 0;
2635
2636 do {
2637 boolean_t found = B_FALSE;
2638
2639 if ((delim = strchr(tfield, ',')) != NULL)
2640 *delim = '\0';
2641 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2642 i++) {
2643 if (strcmp(tfield, us_type_names[i]) == 0) {
2644 found = B_TRUE;
2645 types |= us_type_bits[i];
2646 break;
2647 }
2648 }
2649 if (!found) {
2650 (void) fprintf(stderr, gettext("invalid type "
2651 "'%s' for -t option\n"), tfield);
2652 return (-1);
2653 }
2654 if (delim != NULL)
2655 tfield = delim + 1;
2656 } while (delim != NULL);
2657 }
9babb374 2658
5990da81 2659 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
9babb374
BB		 2660 return (1);
2661
0b7936d5 2662 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
5990da81 2663 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
0b7936d5
AS		 2664 nomem();
2665 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2666 nomem();
2667
5990da81
YP		 2668 /* Always add default sorting columns */
2669 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2670 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2671
2672 cb.cb_sortcol = sortcol;
0b7936d5 2673 cb.cb_numname = prtnum;
5990da81 2674 cb.cb_nicenum = !parsable;
0b7936d5
AS		 2675 cb.cb_avl_pool = avl_pool;
2676 cb.cb_avl = avl_tree;
2677 cb.cb_sid2posix = sid2posix;
5990da81
YP		 2678
2679 for (i = 0; i < USFIELD_LAST; i++)
2680 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
9babb374
BB		 2681
2682 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
5990da81
YP		 2683 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) &&
2684 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2685 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) &&
2686 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
0b7936d5 2687 continue;
0b7936d5 2688 cb.cb_prop = p;
105afebb
YP		 2689 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2690 return (ret);
9babb374 2691 }
0b7936d5 2692
5990da81 2693 /* Sort the list */
105afebb
YP		 2694 if ((node = uu_avl_first(avl_tree)) == NULL)
2695 return (0);
2696
5990da81 2697 us_populated = B_TRUE;
105afebb 2698
5990da81
YP		 2699 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2700 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2701 list = uu_list_create(listpool, NULL, UU_DEFAULT);
5990da81 2702 uu_list_node_init(node, &node->usn_listnode, listpool);
0b7936d5 2703
5990da81
YP		 2704 while (node != NULL) {
2705 rmnode = node;
2706 node = uu_avl_next(avl_tree, node);
2707 uu_avl_remove(avl_tree, rmnode);
2708 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2709 uu_list_insert(list, rmnode, idx2);
2710 }
0b7936d5 2711
5990da81
YP		 2712 for (node = uu_list_first(list); node != NULL;
2713 node = uu_list_next(list, node)) {
2714 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2715
2716 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2717 uu_avl_insert(avl_tree, node, idx);
0b7936d5
AS		 2718 }
2719
5990da81
YP		 2720 uu_list_destroy(list);
2721 uu_list_pool_destroy(listpool);
0b7936d5 2722
5990da81
YP		 2723 /* Print and free node nvlist memory */
2724 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2725 cb.cb_avl);
0b7936d5 2726
5990da81
YP		 2727 zfs_free_sort_columns(sortcol);
2728
2729 /* Clean up the AVL tree */
0b7936d5
AS		 2730 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2731 nomem();
2732
2733 while ((node = uu_avl_walk_next(walk)) != NULL) {
2734 uu_avl_remove(cb.cb_avl, node);
2735 free(node);
2736 }
2737
2738 uu_avl_walk_end(walk);
2739 uu_avl_destroy(avl_tree);
2740 uu_avl_pool_destroy(avl_pool);
2741
105afebb 2742 return (ret);
9babb374
BB		 2743}
2744
2745/*
2746 * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...]
34dc7c2f
BB		 2747 * [-s property [-s property]...] [-S property [-S property]...]
2748 * <dataset> ...
2749 *
428870ff
BB		 2750 * -r Recurse over all children
2751 * -d Limit recursion by depth.
2752 * -H Scripted mode; elide headers and separate columns by tabs
2753 * -o Control which fields to display.
2754 * -t Control which object types to display.
34dc7c2f
BB		 2755 * -s Specify sort columns, descending order.
2756 * -S Specify sort columns, ascending order.
2757 *
2758 * When given no arguments, lists all filesystems in the system.
2759 * Otherwise, list the specified datasets, optionally recursing down them if
2760 * '-r' is specified.
2761 */
2762typedef struct list_cbdata {
2763 boolean_t cb_first;
2764 boolean_t cb_scripted;
2765 zprop_list_t *cb_proplist;
2766} list_cbdata_t;
2767
2768/*
2769 * Given a list of columns to display, output appropriate headers for each one.
2770 */
2771static void
2772print_header(zprop_list_t *pl)
2773{
2774 char headerbuf[ZFS_MAXPROPLEN];
2775 const char *header;
2776 int i;
2777 boolean_t first = B_TRUE;
2778 boolean_t right_justify;
2779
2780 for (; pl != NULL; pl = pl->pl_next) {
2781 if (!first) {
2782 (void) printf(" ");
2783 } else {
2784 first = B_FALSE;
2785 }
2786
2787 right_justify = B_FALSE;
2788 if (pl->pl_prop != ZPROP_INVAL) {
2789 header = zfs_prop_column_name(pl->pl_prop);
2790 right_justify = zfs_prop_align_right(pl->pl_prop);
2791 } else {
2792 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2793 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2794 headerbuf[i] = '\0';
2795 header = headerbuf;
2796 }
2797
2798 if (pl->pl_next == NULL && !right_justify)
2799 (void) printf("%s", header);
2800 else if (right_justify)
b8864a23 2801 (void) printf("%*s", (int)pl->pl_width, header);
34dc7c2f 2802 else
b8864a23 2803 (void) printf("%-*s", (int)pl->pl_width, header);
34dc7c2f
BB		 2804 }
2805
2806 (void) printf("\n");
2807}
2808
2809/*
2810 * Given a dataset and a list of fields, print out all the properties according
2811 * to the described layout.
2812 */
2813static void
2814print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted)
2815{
2816 boolean_t first = B_TRUE;
2817 char property[ZFS_MAXPROPLEN];
2818 nvlist_t *userprops = zfs_get_user_props(zhp);
2819 nvlist_t *propval;
2820 char *propstr;
2821 boolean_t right_justify;
2822 int width;
2823
2824 for (; pl != NULL; pl = pl->pl_next) {
2825 if (!first) {
2826 if (scripted)
2827 (void) printf("\t");
2828 else
2829 (void) printf(" ");
2830 } else {
2831 first = B_FALSE;
2832 }
2833
0cee2406
PJD		 2834 if (pl->pl_prop == ZFS_PROP_NAME) {
2835 (void) strlcpy(property, zfs_get_name(zhp),
2836 sizeof(property));
2837 propstr = property;
2838 right_justify = zfs_prop_align_right(pl->pl_prop);
2839 } else if (pl->pl_prop != ZPROP_INVAL) {
34dc7c2f
BB		 2840 if (zfs_prop_get(zhp, pl->pl_prop, property,
2841 sizeof (property), NULL, NULL, 0, B_FALSE) != 0)
2842 propstr = "-";
2843 else
2844 propstr = property;
2845
2846 right_justify = zfs_prop_align_right(pl->pl_prop);
9babb374
BB		 2847 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
2848 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
2849 property, sizeof (property), B_FALSE) != 0)
2850 propstr = "-";
2851 else
2852 propstr = property;
2853 right_justify = B_TRUE;
330d06f9
MA		 2854 } else if (zfs_prop_written(pl->pl_user_prop)) {
2855 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
2856 property, sizeof (property), B_FALSE) != 0)
2857 propstr = "-";
2858 else
2859 propstr = property;
2860 right_justify = B_TRUE;
34dc7c2f
BB		 2861 } else {
2862 if (nvlist_lookup_nvlist(userprops,
2863 pl->pl_user_prop, &propval) != 0)
2864 propstr = "-";
2865 else
2866 verify(nvlist_lookup_string(propval,
2867 ZPROP_VALUE, &propstr) == 0);
9babb374 2868 right_justify = B_FALSE;
34dc7c2f
BB		 2869 }
2870
2871 width = pl->pl_width;
2872
2873 /*
2874 * If this is being called in scripted mode, or if this is the
2875 * last column and it is left-justified, don't include a width
2876 * format specifier.
2877 */
2878 if (scripted || (pl->pl_next == NULL && !right_justify))
2879 (void) printf("%s", propstr);
2880 else if (right_justify)
2881 (void) printf("%*s", width, propstr);
2882 else
2883 (void) printf("%-*s", width, propstr);
2884 }
2885
2886 (void) printf("\n");
2887}
2888
2889/*
2890 * Generic callback function to list a dataset or snapshot.
2891 */
2892static int
2893list_callback(zfs_handle_t *zhp, void *data)
2894{
2895 list_cbdata_t *cbp = data;
2896
2897 if (cbp->cb_first) {
2898 if (!cbp->cb_scripted)
2899 print_header(cbp->cb_proplist);
2900 cbp->cb_first = B_FALSE;
2901 }
2902
2903 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted);
2904
2905 return (0);
2906}
2907
2908static int
2909zfs_do_list(int argc, char **argv)
2910{
2911 int c;
34dc7c2f
BB		 2912 boolean_t scripted = B_FALSE;
2913 static char default_fields[] =
2914 "name,used,available,referenced,mountpoint";
d164b209 2915 int types = ZFS_TYPE_DATASET;
b128c09f 2916 boolean_t types_specified = B_FALSE;
34dc7c2f 2917 char *fields = NULL;
34dc7c2f
BB		 2918 list_cbdata_t cb = { 0 };
2919 char *value;
9babb374 2920 int limit = 0;
ad60af8e 2921 int ret = 0;
34dc7c2f 2922 zfs_sort_column_t *sortcol = NULL;
b128c09f 2923 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
34dc7c2f
BB		 2924
2925 /* check options */
9babb374 2926 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) {
34dc7c2f
BB		 2927 switch (c) {
2928 case 'o':
2929 fields = optarg;
2930 break;
9babb374
BB		 2931 case 'd':
2932 limit = parse_depth(optarg, &flags);
2933 break;
34dc7c2f 2934 case 'r':
b128c09f 2935 flags |= ZFS_ITER_RECURSE;
34dc7c2f
BB		 2936 break;
2937 case 'H':
2938 scripted = B_TRUE;
2939 break;
2940 case 's':
2941 if (zfs_add_sort_column(&sortcol, optarg,
2942 B_FALSE) != 0) {
2943 (void) fprintf(stderr,
2944 gettext("invalid property '%s'\n"), optarg);
2945 usage(B_FALSE);
2946 }
2947 break;
2948 case 'S':
2949 if (zfs_add_sort_column(&sortcol, optarg,
2950 B_TRUE) != 0) {
2951 (void) fprintf(stderr,
2952 gettext("invalid property '%s'\n"), optarg);
2953 usage(B_FALSE);
2954 }
2955 break;
2956 case 't':
2957 types = 0;
b128c09f
BB		 2958 types_specified = B_TRUE;
2959 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
34dc7c2f 2960 while (*optarg != '\0') {
b128c09f 2961 static char *type_subopts[] = { "filesystem",
cf81b00a 2962 "volume", "snapshot", "snap", "all", NULL };
b128c09f 2963
34dc7c2f
BB		 2964 switch (getsubopt(&optarg, type_subopts,
2965 &value)) {
2966 case 0:
2967 types |= ZFS_TYPE_FILESYSTEM;
2968 break;
2969 case 1:
2970 types |= ZFS_TYPE_VOLUME;
2971 break;
2972 case 2:
cf81b00a 2973 case 3:
34dc7c2f
BB		 2974 types |= ZFS_TYPE_SNAPSHOT;
2975 break;
cf81b00a 2976 case 4:
b128c09f
BB		 2977 types = ZFS_TYPE_DATASET;
2978 break;
2979
34dc7c2f
BB		 2980 default:
2981 (void) fprintf(stderr,
2982 gettext("invalid type '%s'\n"),
2983 value);
2984 usage(B_FALSE);
2985 }
2986 }
2987 break;
2988 case ':':
2989 (void) fprintf(stderr, gettext("missing argument for "
2990 "'%c' option\n"), optopt);
2991 usage(B_FALSE);
2992 break;
2993 case '?':
2994 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2995 optopt);
2996 usage(B_FALSE);
2997 }
2998 }
2999
3000 argc -= optind;
3001 argv += optind;
3002
3003 if (fields == NULL)
b128c09f
BB		 3004 fields = default_fields;
3005
0cee2406
PJD		 3006 /*
3007 * If we are only going to list snapshot names and sort by name,
3008 * then we can use faster version.
3009 */
3010 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol))
3011 flags |= ZFS_ITER_SIMPLE;
3012
b128c09f
BB		 3013 /*
3014 * If "-o space" and no types were specified, don't display snapshots.
3015 */
3016 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3017 types &= ~ZFS_TYPE_SNAPSHOT;
34dc7c2f
BB		 3018
3019 /*
3020 * If the user specifies '-o all', the zprop_get_list() doesn't
3021 * normally include the name of the dataset. For 'zfs list', we always
3022 * want this property to be first.
3023 */
3024 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3025 != 0)
3026 usage(B_FALSE);
3027
3028 cb.cb_scripted = scripted;
3029 cb.cb_first = B_TRUE;
3030
b128c09f 3031 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
9babb374 3032 limit, list_callback, &cb);
34dc7c2f
BB		 3033
3034 zprop_free_list(cb.cb_proplist);
3035 zfs_free_sort_columns(sortcol);
3036
3037 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
42cb3819 3038 (void) fprintf(stderr, gettext("no datasets available\n"));
34dc7c2f
BB		 3039
3040 return (ret);
3041}
3042
3043/*
db49968e
ES		 3044 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3045 * zfs rename [-f] -p <fs | vol> <fs | vol>
34dc7c2f
BB		 3046 * zfs rename -r <snap> <snap>
3047 *
3048 * Renames the given dataset to another of the same type.
3049 *
3050 * The '-p' flag creates all the non-existing ancestors of the target first.
3051 */
3052/* ARGSUSED */
3053static int
3054zfs_do_rename(int argc, char **argv)
3055{
3056 zfs_handle_t *zhp;
3057 int c;
ad60af8e 3058 int ret = 0;
34dc7c2f
BB		 3059 boolean_t recurse = B_FALSE;
3060 boolean_t parents = B_FALSE;
db49968e 3061 boolean_t force_unmount = B_FALSE;
34dc7c2f
BB		 3062
3063 /* check options */
db49968e 3064 while ((c = getopt(argc, argv, "prf")) != -1) {
34dc7c2f
BB		 3065 switch (c) {
3066 case 'p':
3067 parents = B_TRUE;
3068 break;
3069 case 'r':
3070 recurse = B_TRUE;
3071 break;
db49968e
ES		 3072 case 'f':
3073 force_unmount = B_TRUE;
3074 break;
34dc7c2f
BB		 3075 case '?':
3076 default:
3077 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3078 optopt);
3079 usage(B_FALSE);
3080 }
3081 }
3082
3083 argc -= optind;
3084 argv += optind;
3085
3086 /* check number of arguments */
3087 if (argc < 1) {
3088 (void) fprintf(stderr, gettext("missing source dataset "
3089 "argument\n"));
3090 usage(B_FALSE);
3091 }
3092 if (argc < 2) {
3093 (void) fprintf(stderr, gettext("missing target dataset "
3094 "argument\n"));
3095 usage(B_FALSE);
3096 }
3097 if (argc > 2) {
3098 (void) fprintf(stderr, gettext("too many arguments\n"));
3099 usage(B_FALSE);
3100 }
3101
3102 if (recurse && parents) {
3103 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3104 "exclusive\n"));
3105 usage(B_FALSE);
3106 }
3107
3108 if (recurse && strchr(argv[0], '@') == 0) {
3109 (void) fprintf(stderr, gettext("source dataset for recursive "
3110 "rename must be a snapshot\n"));
3111 usage(B_FALSE);
3112 }
3113
3114 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3115 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3116 return (1);
3117
3118 /* If we were asked and the name looks good, try to create ancestors. */
3119 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3120 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3121 zfs_close(zhp);
3122 return (1);
3123 }
3124
db49968e 3125 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
34dc7c2f
BB		 3126
3127 zfs_close(zhp);
3128 return (ret);
3129}
3130
3131/*
3132 * zfs promote <fs>
3133 *
3134 * Promotes the given clone fs to be the parent
3135 */
3136/* ARGSUSED */
3137static int
3138zfs_do_promote(int argc, char **argv)
3139{
3140 zfs_handle_t *zhp;
ad60af8e 3141 int ret = 0;
34dc7c2f
BB		 3142
3143 /* check options */
3144 if (argc > 1 && argv[1][0] == '-') {
3145 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3146 argv[1][1]);
3147 usage(B_FALSE);
3148 }
3149
3150 /* check number of arguments */
3151 if (argc < 2) {
3152 (void) fprintf(stderr, gettext("missing clone filesystem"
3153 " argument\n"));
3154 usage(B_FALSE);
3155 }
3156 if (argc > 2) {
3157 (void) fprintf(stderr, gettext("too many arguments\n"));
3158 usage(B_FALSE);
3159 }
3160
3161 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3162 if (zhp == NULL)
3163 return (1);
3164
3165 ret = (zfs_promote(zhp) != 0);
3166
3167
3168 zfs_close(zhp);
3169 return (ret);
3170}
3171
3172/*
3173 * zfs rollback [-rRf] <snapshot>
3174 *
428870ff
BB		 3175 * -r Delete any intervening snapshots before doing rollback
3176 * -R Delete any snapshots and their clones
3177 * -f ignored for backwards compatability
34dc7c2f
BB		 3178 *
3179 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3180 * since then and making it the active dataset. If more recent snapshots exist,
3181 * the command will complain unless the '-r' flag is given.
3182 */
3183typedef struct rollback_cbdata {
3184 uint64_t cb_create;
3185 boolean_t cb_first;
3186 int cb_doclones;
3187 char *cb_target;
3188 int cb_error;
3189 boolean_t cb_recurse;
3190 boolean_t cb_dependent;
3191} rollback_cbdata_t;
3192
3193/*
3194 * Report any snapshots more recent than the one specified. Used when '-r' is
3195 * not specified. We reuse this same callback for the snapshot dependents - if
3196 * 'cb_dependent' is set, then this is a dependent and we should report it
3197 * without checking the transaction group.
3198 */
3199static int
3200rollback_check(zfs_handle_t *zhp, void *data)
3201{
3202 rollback_cbdata_t *cbp = data;
3203
3204 if (cbp->cb_doclones) {
3205 zfs_close(zhp);
3206 return (0);
3207 }
3208
3209 if (!cbp->cb_dependent) {
3210 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 &&
3211 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
3212 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) >
3213 cbp->cb_create) {
3214
3215 if (cbp->cb_first && !cbp->cb_recurse) {
3216 (void) fprintf(stderr, gettext("cannot "
3217 "rollback to '%s': more recent snapshots "
3218 "exist\n"),
3219 cbp->cb_target);
3220 (void) fprintf(stderr, gettext("use '-r' to "
3221 "force deletion of the following "
3222 "snapshots:\n"));
3223 cbp->cb_first = 0;
3224 cbp->cb_error = 1;
3225 }
3226
3227 if (cbp->cb_recurse) {
3228 cbp->cb_dependent = B_TRUE;
3229 if (zfs_iter_dependents(zhp, B_TRUE,
3230 rollback_check, cbp) != 0) {
3231 zfs_close(zhp);
3232 return (-1);
3233 }
3234 cbp->cb_dependent = B_FALSE;
3235 } else {
3236 (void) fprintf(stderr, "%s\n",
3237 zfs_get_name(zhp));
3238 }
3239 }
3240 } else {
3241 if (cbp->cb_first && cbp->cb_recurse) {
3242 (void) fprintf(stderr, gettext("cannot rollback to "
3243 "'%s': clones of previous snapshots exist\n"),
3244 cbp->cb_target);
3245 (void) fprintf(stderr, gettext("use '-R' to "
3246 "force deletion of the following clones and "
3247 "dependents:\n"));
3248 cbp->cb_first = 0;
3249 cbp->cb_error = 1;
3250 }
3251
3252 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3253 }
3254
3255 zfs_close(zhp);
3256 return (0);
3257}
3258
3259static int
3260zfs_do_rollback(int argc, char **argv)
3261{
ad60af8e 3262 int ret = 0;
34dc7c2f
BB		 3263 int c;
3264 boolean_t force = B_FALSE;
3265 rollback_cbdata_t cb = { 0 };
3266 zfs_handle_t *zhp, *snap;
3267 char parentname[ZFS_MAXNAMELEN];
3268 char *delim;
3269
3270 /* check options */
3271 while ((c = getopt(argc, argv, "rRf")) != -1) {
3272 switch (c) {
3273 case 'r':
3274 cb.cb_recurse = 1;
3275 break;
3276 case 'R':
3277 cb.cb_recurse = 1;
3278 cb.cb_doclones = 1;
3279 break;
3280 case 'f':
3281 force = B_TRUE;
3282 break;
3283 case '?':
3284 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3285 optopt);
3286 usage(B_FALSE);
3287 }
3288 }
3289
3290 argc -= optind;
3291 argv += optind;
3292
3293 /* check number of arguments */
3294 if (argc < 1) {
3295 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3296 usage(B_FALSE);
3297 }
3298 if (argc > 1) {
3299 (void) fprintf(stderr, gettext("too many arguments\n"));
3300 usage(B_FALSE);
3301 }
3302
3303 /* open the snapshot */
3304 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3305 return (1);
3306
3307 /* open the parent dataset */
3308 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3309 verify((delim = strrchr(parentname, '@')) != NULL);
3310 *delim = '\0';
3311 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3312 zfs_close(snap);
3313 return (1);
3314 }
3315
3316 /*
3317 * Check for more recent snapshots and/or clones based on the presence
3318 * of '-r' and '-R'.
3319 */
3320 cb.cb_target = argv[0];
3321 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3322 cb.cb_first = B_TRUE;
3323 cb.cb_error = 0;
3324 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0)
3325 goto out;
3326
3327 if ((ret = cb.cb_error) != 0)
3328 goto out;
3329
3330 /*
3331 * Rollback parent to the given snapshot.
3332 */
3333 ret = zfs_rollback(zhp, snap, force);
3334
3335out:
3336 zfs_close(snap);
3337 zfs_close(zhp);
3338
3339 if (ret == 0)
3340 return (0);
3341 else
3342 return (1);
3343}
3344
3345/*
3346 * zfs set property=value { fs | snap | vol } ...
3347 *
3348 * Sets the given property for all datasets specified on the command line.
3349 */
3350typedef struct set_cbdata {
3351 char *cb_propname;
3352 char *cb_value;
3353} set_cbdata_t;
3354
3355static int
3356set_callback(zfs_handle_t *zhp, void *data)
3357{
3358 set_cbdata_t *cbp = data;
3359
3360 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) {
3361 switch (libzfs_errno(g_zfs)) {
3362 case EZFS_MOUNTFAILED:
3363 (void) fprintf(stderr, gettext("property may be set "
3364 "but unable to remount filesystem\n"));
3365 break;
3366 case EZFS_SHARENFSFAILED:
3367 (void) fprintf(stderr, gettext("property may be set "
3368 "but unable to reshare filesystem\n"));
3369 break;
3370 }
3371 return (1);
3372 }
3373 return (0);
3374}
3375
3376static int
3377zfs_do_set(int argc, char **argv)
3378{
3379 set_cbdata_t cb;
ad60af8e 3380 int ret = 0;
34dc7c2f
BB		 3381
3382 /* check for options */
3383 if (argc > 1 && argv[1][0] == '-') {
3384 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3385 argv[1][1]);
3386 usage(B_FALSE);
3387 }
3388
3389 /* check number of arguments */
3390 if (argc < 2) {
3391 (void) fprintf(stderr, gettext("missing property=value "
3392 "argument\n"));
3393 usage(B_FALSE);
3394 }
3395 if (argc < 3) {
3396 (void) fprintf(stderr, gettext("missing dataset name\n"));
3397 usage(B_FALSE);
3398 }
3399
3400 /* validate property=value argument */
3401 cb.cb_propname = argv[1];
b128c09f
BB		 3402 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) ||
3403 (cb.cb_value[1] == '\0')) {
34dc7c2f
BB		 3404 (void) fprintf(stderr, gettext("missing value in "
3405 "property=value argument\n"));
3406 usage(B_FALSE);
3407 }
3408
3409 *cb.cb_value = '\0';
3410 cb.cb_value++;
3411
3412 if (*cb.cb_propname == '\0') {
3413 (void) fprintf(stderr,
3414 gettext("missing property in property=value argument\n"));
3415 usage(B_FALSE);
3416 }
3417
b8864a23 3418 ret = zfs_for_each(argc - 2, argv + 2, 0,
9babb374 3419 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb);
34dc7c2f
BB		 3420
3421 return (ret);
3422}
3423
3424/*
b128c09f 3425 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
34dc7c2f
BB		 3426 *
3427 * Creates a snapshot with the given name. While functionally equivalent to
3428 * 'zfs create', it is a separate command to differentiate intent.
3429 */
3430static int
3431zfs_do_snapshot(int argc, char **argv)
3432{
3433 boolean_t recursive = B_FALSE;
ad60af8e 3434 int ret = 0;
b8864a23 3435 signed char c;
b128c09f
BB		 3436 nvlist_t *props;
3437
428870ff
BB		 3438 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3439 nomem();
34dc7c2f
BB		 3440
3441 /* check options */
b128c09f 3442 while ((c = getopt(argc, argv, "ro:")) != -1) {
34dc7c2f 3443 switch (c) {
b128c09f
BB		 3444 case 'o':
3445 if (parseprop(props))
3446 return (1);
3447 break;
34dc7c2f
BB		 3448 case 'r':
3449 recursive = B_TRUE;
3450 break;
3451 case '?':
3452 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3453 optopt);
b128c09f 3454 goto usage;
34dc7c2f
BB		 3455 }
3456 }
3457
3458 argc -= optind;
3459 argv += optind;
3460
3461 /* check number of arguments */
3462 if (argc < 1) {
3463 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
b128c09f 3464 goto usage;
34dc7c2f
BB		 3465 }
3466 if (argc > 1) {
3467 (void) fprintf(stderr, gettext("too many arguments\n"));
b128c09f 3468 goto usage;
34dc7c2f
BB		 3469 }
3470
b128c09f
BB		 3471 ret = zfs_snapshot(g_zfs, argv[0], recursive, props);
3472 nvlist_free(props);
34dc7c2f
BB		 3473 if (ret && recursive)
3474 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3475 return (ret != 0);
b128c09f
BB		 3476
3477usage:
3478 nvlist_free(props);
3479 usage(B_FALSE);
3480 return (-1);
34dc7c2f
BB		 3481}
3482
3483/*
34dc7c2f
BB		 3484 * Send a backup stream to stdout.
3485 */
3486static int
3487zfs_do_send(int argc, char **argv)
3488{
3489 char *fromname = NULL;
3490 char *toname = NULL;
3491 char *cp;
3492 zfs_handle_t *zhp;
428870ff 3493 sendflags_t flags = { 0 };
34dc7c2f 3494 int c, err;
330d06f9 3495 nvlist_t *dbgnv = NULL;
428870ff 3496 boolean_t extraverbose = B_FALSE;
34dc7c2f
BB		 3497
3498 /* check options */
330d06f9 3499 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) {
34dc7c2f
BB		 3500 switch (c) {
3501 case 'i':
3502 if (fromname)
3503 usage(B_FALSE);
3504 fromname = optarg;
3505 break;
3506 case 'I':
3507 if (fromname)
3508 usage(B_FALSE);
3509 fromname = optarg;
428870ff 3510 flags.doall = B_TRUE;
34dc7c2f
BB		 3511 break;
3512 case 'R':
428870ff
BB		 3513 flags.replicate = B_TRUE;
3514 break;
3515 case 'p':
3516 flags.props = B_TRUE;
34dc7c2f 3517 break;
330d06f9
MA		 3518 case 'P':
3519 flags.parsable = B_TRUE;
3520 flags.verbose = B_TRUE;
3521 break;
34dc7c2f 3522 case 'v':
428870ff
BB		 3523 if (flags.verbose)
3524 extraverbose = B_TRUE;
3525 flags.verbose = B_TRUE;
37abac6d 3526 flags.progress = B_TRUE;
428870ff
BB		 3527 break;
3528 case 'D':
3529 flags.dedup = B_TRUE;
34dc7c2f 3530 break;
330d06f9
MA		 3531 case 'n':
3532 flags.dryrun = B_TRUE;
3533 break;
34dc7c2f
BB		 3534 case ':':
3535 (void) fprintf(stderr, gettext("missing argument for "
3536 "'%c' option\n"), optopt);
3537 usage(B_FALSE);
3538 break;
3539 case '?':
3540 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3541 optopt);
3542 usage(B_FALSE);
3543 }
3544 }
3545
3546 argc -= optind;
3547 argv += optind;
3548
3549 /* check number of arguments */
3550 if (argc < 1) {
3551 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3552 usage(B_FALSE);
3553 }
3554 if (argc > 1) {
3555 (void) fprintf(stderr, gettext("too many arguments\n"));
3556 usage(B_FALSE);
3557 }
3558
330d06f9 3559 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
34dc7c2f
BB		 3560 (void) fprintf(stderr,
3561 gettext("Error: Stream can not be written to a terminal.\n"
3562 "You must redirect standard output.\n"));
3563 return (1);
3564 }
3565
3566 cp = strchr(argv[0], '@');
3567 if (cp == NULL) {
3568 (void) fprintf(stderr,
3569 gettext("argument must be a snapshot\n"));
3570 usage(B_FALSE);
3571 }
0b7936d5
AS		 3572 *cp = '\0';
3573 toname = cp + 1;
3574 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3575 if (zhp == NULL)
3576 return (1);
3577
3578 /*
3579 * If they specified the full path to the snapshot, chop off
3580 * everything except the short name of the snapshot, but special
3581 * case if they specify the origin.
3582 */
3583 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3584 char origin[ZFS_MAXNAMELEN];
3585 zprop_source_t src;
3586
3587 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3588 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3589
3590 if (strcmp(origin, fromname) == 0) {
3591 fromname = NULL;
3592 flags.fromorigin = B_TRUE;
3593 } else {
3594 *cp = '\0';
3595 if (cp != fromname && strcmp(argv[0], fromname)) {
3596 (void) fprintf(stderr,
3597 gettext("incremental source must be "
3598 "in same filesystem\n"));
3599 usage(B_FALSE);
3600 }
3601 fromname = cp + 1;
3602 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3603 (void) fprintf(stderr,
3604 gettext("invalid incremental source\n"));
3605 usage(B_FALSE);
3606 }
3607 }
3608 }
3609
3610 if (flags.replicate && fromname == NULL)
3611 flags.doall = B_TRUE;
3612
330d06f9 3613 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
0b7936d5
AS		 3614 extraverbose ? &dbgnv : NULL);
3615
330d06f9 3616 if (extraverbose && dbgnv != NULL) {
0b7936d5
AS		 3617 /*
3618 * dump_nvlist prints to stdout, but that's been
3619 * redirected to a file. Make it print to stderr
3620 * instead.
3621 */
3622 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3623 dump_nvlist(dbgnv, 0);
3624 nvlist_free(dbgnv);
3625 }
3626 zfs_close(zhp);
3627
3628 return (err != 0);
3629}
3630
3631/*
3632 * zfs receive [-vnFu] [-d | -e] <fs@snap>
3633 *
3634 * Restore a backup stream from stdin.
3635 */
3636static int
3637zfs_do_receive(int argc, char **argv)
3638{
3639 int c, err;
3640 recvflags_t flags = { 0 };
3641
3642 /* check options */
3643 while ((c = getopt(argc, argv, ":denuvF")) != -1) {
3644 switch (c) {
3645 case 'd':
3646 flags.isprefix = B_TRUE;
3647 break;
3648 case 'e':
3649 flags.isprefix = B_TRUE;
3650 flags.istail = B_TRUE;
3651 break;
3652 case 'n':
3653 flags.dryrun = B_TRUE;
3654 break;
3655 case 'u':
3656 flags.nomount = B_TRUE;
3657 break;
3658 case 'v':
3659 flags.verbose = B_TRUE;
3660 break;
3661 case 'F':
3662 flags.force = B_TRUE;
3663 break;
3664 case ':':
3665 (void) fprintf(stderr, gettext("missing argument for "
3666 "'%c' option\n"), optopt);
3667 usage(B_FALSE);
3668 break;
3669 case '?':
3670 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3671 optopt);
3672 usage(B_FALSE);
3673 }
3674 }
3675
3676 argc -= optind;
3677 argv += optind;
3678
3679 /* check number of arguments */
3680 if (argc < 1) {
3681 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3682 usage(B_FALSE);
3683 }
3684 if (argc > 1) {
3685 (void) fprintf(stderr, gettext("too many arguments\n"));
3686 usage(B_FALSE);
3687 }
3688
3689 if (isatty(STDIN_FILENO)) {
3690 (void) fprintf(stderr,
3691 gettext("Error: Backup stream can not be read "
3692 "from a terminal.\n"
3693 "You must redirect standard input.\n"));
3694 return (1);
3695 }
3696
330d06f9 3697 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL);
0b7936d5
AS		 3698
3699 return (err != 0);
3700}
3701
3702/*
3703 * allow/unallow stuff
3704 */
3705/* copied from zfs/sys/dsl_deleg.h */
3706#define ZFS_DELEG_PERM_CREATE "create"
3707#define ZFS_DELEG_PERM_DESTROY "destroy"
3708#define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
3709#define ZFS_DELEG_PERM_ROLLBACK "rollback"
3710#define ZFS_DELEG_PERM_CLONE "clone"
3711#define ZFS_DELEG_PERM_PROMOTE "promote"
3712#define ZFS_DELEG_PERM_RENAME "rename"
3713#define ZFS_DELEG_PERM_MOUNT "mount"
3714#define ZFS_DELEG_PERM_SHARE "share"
3715#define ZFS_DELEG_PERM_SEND "send"
3716#define ZFS_DELEG_PERM_RECEIVE "receive"
3717#define ZFS_DELEG_PERM_ALLOW "allow"
3718#define ZFS_DELEG_PERM_USERPROP "userprop"
3719#define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
3720#define ZFS_DELEG_PERM_USERQUOTA "userquota"
3721#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
3722#define ZFS_DELEG_PERM_USERUSED "userused"
3723#define ZFS_DELEG_PERM_GROUPUSED "groupused"
3724#define ZFS_DELEG_PERM_HOLD "hold"
3725#define ZFS_DELEG_PERM_RELEASE "release"
3726#define ZFS_DELEG_PERM_DIFF "diff"
3727
3728#define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
3729
3730static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
3731 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
3732 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
3733 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
3734 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
3735 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
3736 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
3737 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
3738 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
3739 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
3740 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
3741 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
3742 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
3743 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
3744 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
3745 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
3746
3747 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
3748 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
3749 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
3750 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
3751 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
3752 { NULL, ZFS_DELEG_NOTE_NONE }
3753};
3754
3755/* permission structure */
3756typedef struct deleg_perm {
3757 zfs_deleg_who_type_t dp_who_type;
3758 const char *dp_name;
3759 boolean_t dp_local;
3760 boolean_t dp_descend;
3761} deleg_perm_t;
3762
3763/* */
3764typedef struct deleg_perm_node {
3765 deleg_perm_t dpn_perm;
3766
3767 uu_avl_node_t dpn_avl_node;
3768} deleg_perm_node_t;
3769
3770typedef struct fs_perm fs_perm_t;
3771
3772/* permissions set */
3773typedef struct who_perm {
3774 zfs_deleg_who_type_t who_type;
3775 const char *who_name; /* id */
3776 char who_ug_name[256]; /* user/group name */
3777 fs_perm_t *who_fsperm; /* uplink */
3778
3779 uu_avl_t *who_deleg_perm_avl; /* permissions */
3780} who_perm_t;
3781
3782/* */
3783typedef struct who_perm_node {
3784 who_perm_t who_perm;
3785 uu_avl_node_t who_avl_node;
3786} who_perm_node_t;
3787
3788typedef struct fs_perm_set fs_perm_set_t;
3789/* fs permissions */
3790struct fs_perm {
3791 const char *fsp_name;
3792
3793 uu_avl_t *fsp_sc_avl; /* sets,create */
3794 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
3795
3796 fs_perm_set_t *fsp_set; /* uplink */
3797};
3798
3799/* */
3800typedef struct fs_perm_node {
3801 fs_perm_t fspn_fsperm;
3802 uu_avl_t *fspn_avl;
3803
3804 uu_list_node_t fspn_list_node;
3805} fs_perm_node_t;
3806
3807/* top level structure */
3808struct fs_perm_set {
3809 uu_list_pool_t *fsps_list_pool;
3810 uu_list_t *fsps_list; /* list of fs_perms */
3811
3812 uu_avl_pool_t *fsps_named_set_avl_pool;
3813 uu_avl_pool_t *fsps_who_perm_avl_pool;
3814 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
3815};
3816
3817static inline const char *
3818deleg_perm_type(zfs_deleg_note_t note)
3819{
3820 /* subcommands */
3821 switch (note) {
3822 /* SUBCOMMANDS */
3823 /* OTHER */
3824 case ZFS_DELEG_NOTE_GROUPQUOTA:
3825 case ZFS_DELEG_NOTE_GROUPUSED:
3826 case ZFS_DELEG_NOTE_USERPROP:
3827 case ZFS_DELEG_NOTE_USERQUOTA:
3828 case ZFS_DELEG_NOTE_USERUSED:
3829 /* other */
3830 return (gettext("other"));
3831 default:
3832 return (gettext("subcommand"));
3833 }
3834}
3835
3836static int inline
3837who_type2weight(zfs_deleg_who_type_t who_type)
3838{
3839 int res;
3840 switch (who_type) {
3841 case ZFS_DELEG_NAMED_SET_SETS:
3842 case ZFS_DELEG_NAMED_SET:
3843 res = 0;
3844 break;
3845 case ZFS_DELEG_CREATE_SETS:
3846 case ZFS_DELEG_CREATE:
3847 res = 1;
3848 break;
3849 case ZFS_DELEG_USER_SETS:
3850 case ZFS_DELEG_USER:
3851 res = 2;
3852 break;
3853 case ZFS_DELEG_GROUP_SETS:
3854 case ZFS_DELEG_GROUP:
3855 res = 3;
3856 break;
3857 case ZFS_DELEG_EVERYONE_SETS:
3858 case ZFS_DELEG_EVERYONE:
3859 res = 4;
3860 break;
3861 default:
3862 res = -1;
3863 }
3864
3865 return (res);
3866}
3867
3868/* ARGSUSED */
3869static int
3870who_perm_compare(const void *larg, const void *rarg, void *unused)
3871{
3872 const who_perm_node_t *l = larg;
3873 const who_perm_node_t *r = rarg;
3874 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
3875 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
3876 int lweight = who_type2weight(ltype);
3877 int rweight = who_type2weight(rtype);
3878 int res = lweight - rweight;
3879 if (res == 0)
3880 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
3881 ZFS_MAX_DELEG_NAME-1);
3882
3883 if (res == 0)
3884 return (0);
3885 if (res > 0)
3886 return (1);
3887 else
3888 return (-1);
3889}
3890
3891/* ARGSUSED */
3892static int
3893deleg_perm_compare(const void *larg, const void *rarg, void *unused)
3894{
3895 const deleg_perm_node_t *l = larg;
3896 const deleg_perm_node_t *r = rarg;
3897 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
3898 ZFS_MAX_DELEG_NAME-1);
3899
3900 if (res == 0)
3901 return (0);
3902
3903 if (res > 0)
3904 return (1);
3905 else
3906 return (-1);
3907}
3908
3909static inline void
3910fs_perm_set_init(fs_perm_set_t *fspset)
3911{
3912 bzero(fspset, sizeof (fs_perm_set_t));
3913
3914 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
3915 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
3916 NULL, UU_DEFAULT)) == NULL)
3917 nomem();
3918 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
3919 UU_DEFAULT)) == NULL)
3920 nomem();
3921
3922 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
3923 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
3924 who_perm_node_t, who_avl_node), who_perm_compare,
3925 UU_DEFAULT)) == NULL)
3926 nomem();
3927
3928 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
3929 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
3930 who_perm_node_t, who_avl_node), who_perm_compare,
3931 UU_DEFAULT)) == NULL)
3932 nomem();
3933
3934 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
3935 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
3936 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
3937 == NULL)
3938 nomem();
3939}
3940
3941static inline void fs_perm_fini(fs_perm_t *);
3942static inline void who_perm_fini(who_perm_t *);
3943
3944static inline void
3945fs_perm_set_fini(fs_perm_set_t *fspset)
3946{
3947 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
3948
3949 while (node != NULL) {
3950 fs_perm_node_t *next_node =
3951 uu_list_next(fspset->fsps_list, node);
3952 fs_perm_t *fsperm = &node->fspn_fsperm;
3953 fs_perm_fini(fsperm);
3954 uu_list_remove(fspset->fsps_list, node);
3955 free(node);
3956 node = next_node;
3957 }
3958
3959 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
3960 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
3961 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
3962}
3963
3964static inline void
3965deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
3966 const char *name)
3967{
3968 deleg_perm->dp_who_type = type;
3969 deleg_perm->dp_name = name;
3970}
3971
3972static inline void
3973who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
3974 zfs_deleg_who_type_t type, const char *name)
3975{
3976 uu_avl_pool_t *pool;
3977 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
3978
3979 bzero(who_perm, sizeof (who_perm_t));
3980
3981 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
3982 UU_DEFAULT)) == NULL)
3983 nomem();
3984
3985 who_perm->who_type = type;
3986 who_perm->who_name = name;
3987 who_perm->who_fsperm = fsperm;
3988}
3989
3990static inline void
3991who_perm_fini(who_perm_t *who_perm)
3992{
3993 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
3994
3995 while (node != NULL) {
3996 deleg_perm_node_t *next_node =
3997 uu_avl_next(who_perm->who_deleg_perm_avl, node);
3998
3999 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4000 free(node);
4001 node = next_node;
4002 }
4003
4004 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4005}
4006
4007static inline void
4008fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4009{
4010 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4011 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4012
4013 bzero(fsperm, sizeof (fs_perm_t));
4014
4015 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4016 == NULL)
4017 nomem();
4018
4019 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4020 == NULL)
4021 nomem();
4022
4023 fsperm->fsp_set = fspset;
4024 fsperm->fsp_name = fsname;
4025}
4026
4027static inline void
4028fs_perm_fini(fs_perm_t *fsperm)
4029{
4030 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4031 while (node != NULL) {
4032 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4033 node);
4034 who_perm_t *who_perm = &node->who_perm;
4035 who_perm_fini(who_perm);
4036 uu_avl_remove(fsperm->fsp_sc_avl, node);
4037 free(node);
4038 node = next_node;
4039 }
4040
4041 node = uu_avl_first(fsperm->fsp_uge_avl);
4042 while (node != NULL) {
4043 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4044 node);
4045 who_perm_t *who_perm = &node->who_perm;
4046 who_perm_fini(who_perm);
4047 uu_avl_remove(fsperm->fsp_uge_avl, node);
4048 free(node);
4049 node = next_node;
4050 }
4051
4052 uu_avl_destroy(fsperm->fsp_sc_avl);
4053 uu_avl_destroy(fsperm->fsp_uge_avl);
4054}
4055
4056static void inline
4057set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4058 zfs_deleg_who_type_t who_type, const char *name, char locality)
4059{
4060 uu_avl_index_t idx = 0;
4061
4062 deleg_perm_node_t *found_node = NULL;
4063 deleg_perm_t *deleg_perm = &node->dpn_perm;
4064
4065 deleg_perm_init(deleg_perm, who_type, name);
4066
4067 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4068 == NULL)
4069 uu_avl_insert(avl, node, idx);
4070 else {
4071 node = found_node;
4072 deleg_perm = &node->dpn_perm;
4073 }
4074
4075
4076 switch (locality) {
4077 case ZFS_DELEG_LOCAL:
4078 deleg_perm->dp_local = B_TRUE;
4079 break;
4080 case ZFS_DELEG_DESCENDENT:
4081 deleg_perm->dp_descend = B_TRUE;
4082 break;
4083 case ZFS_DELEG_NA:
4084 break;
4085 default:
4086 assert(B_FALSE); /* invalid locality */
4087 }
4088}
4089
4090static inline int
4091parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4092{
4093 nvpair_t *nvp = NULL;
4094 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4095 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4096 zfs_deleg_who_type_t who_type = who_perm->who_type;
4097
4098 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4099 const char *name = nvpair_name(nvp);
4100 data_type_t type = nvpair_type(nvp);
4101 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4102 deleg_perm_node_t *node =
4103 safe_malloc(sizeof (deleg_perm_node_t));
4104
4105 VERIFY(type == DATA_TYPE_BOOLEAN);
4106
4107 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4108 set_deleg_perm_node(avl, node, who_type, name, locality);
4109 }
4110
4111 return (0);
4112}
4113
4114static inline int
4115parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4116{
4117 nvpair_t *nvp = NULL;
4118 fs_perm_set_t *fspset = fsperm->fsp_set;
4119
4120 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4121 nvlist_t *nvl2 = NULL;
4122 const char *name = nvpair_name(nvp);
4123 uu_avl_t *avl = NULL;
4124 uu_avl_pool_t *avl_pool = NULL;
4125 zfs_deleg_who_type_t perm_type = name[0];
4126 char perm_locality = name[1];
4127 const char *perm_name = name + 3;
4128 boolean_t is_set = B_TRUE;
4129 who_perm_t *who_perm = NULL;
4130
4131 assert('$' == name[2]);
4132
4133 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4134 return (-1);
4135
4136 switch (perm_type) {
4137 case ZFS_DELEG_CREATE:
4138 case ZFS_DELEG_CREATE_SETS:
4139 case ZFS_DELEG_NAMED_SET:
4140 case ZFS_DELEG_NAMED_SET_SETS:
4141 avl_pool = fspset->fsps_named_set_avl_pool;
4142 avl = fsperm->fsp_sc_avl;
4143 break;
4144 case ZFS_DELEG_USER:
4145 case ZFS_DELEG_USER_SETS:
4146 case ZFS_DELEG_GROUP:
4147 case ZFS_DELEG_GROUP_SETS:
4148 case ZFS_DELEG_EVERYONE:
4149 case ZFS_DELEG_EVERYONE_SETS:
4150 avl_pool = fspset->fsps_who_perm_avl_pool;
4151 avl = fsperm->fsp_uge_avl;
4152 break;
4153 default:
4154 break;
4155 }
4156
4157 if (is_set) {
4158 who_perm_node_t *found_node = NULL;
4159 who_perm_node_t *node = safe_malloc(
4160 sizeof (who_perm_node_t));
4161 who_perm = &node->who_perm;
4162 uu_avl_index_t idx = 0;
4163
4164 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4165 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4166
4167 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4168 == NULL) {
4169 if (avl == fsperm->fsp_uge_avl) {
4170 uid_t rid = 0;
4171 struct passwd *p = NULL;
4172 struct group *g = NULL;
4173 const char *nice_name = NULL;
4174
4175 switch (perm_type) {
4176 case ZFS_DELEG_USER_SETS:
4177 case ZFS_DELEG_USER:
4178 rid = atoi(perm_name);
4179 p = getpwuid(rid);
4180 if (p)
4181 nice_name = p->pw_name;
4182 break;
4183 case ZFS_DELEG_GROUP_SETS:
4184 case ZFS_DELEG_GROUP:
4185 rid = atoi(perm_name);
4186 g = getgrgid(rid);
4187 if (g)
4188 nice_name = g->gr_name;
4189 break;
4190 default:
4191 break;
4192 }
4193
4194 if (nice_name != NULL)
4195 (void) strlcpy(
4196 node->who_perm.who_ug_name,
4197 nice_name, 256);
4198 }
4199
4200 uu_avl_insert(avl, node, idx);
4201 } else {
4202 node = found_node;
4203 who_perm = &node->who_perm;
4204 }
4205 }
4206
4207 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4208 }
4209
4210 return (0);
4211}
4212
4213static inline int
4214parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4215{
4216 nvpair_t *nvp = NULL;
4217 uu_avl_index_t idx = 0;
4218
4219 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4220 nvlist_t *nvl2 = NULL;
4221 const char *fsname = nvpair_name(nvp);
4222 data_type_t type = nvpair_type(nvp);
4223 fs_perm_t *fsperm = NULL;
4224 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4225 if (node == NULL)
4226 nomem();
4227
4228 fsperm = &node->fspn_fsperm;
4229
4230 VERIFY(DATA_TYPE_NVLIST == type);
4231
4232 uu_list_node_init(node, &node->fspn_list_node,
4233 fspset->fsps_list_pool);
4234
4235 idx = uu_list_numnodes(fspset->fsps_list);
4236 fs_perm_init(fsperm, fspset, fsname);
4237
4238 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4239 return (-1);
4240
4241 (void) parse_fs_perm(fsperm, nvl2);
4242
4243 uu_list_insert(fspset->fsps_list, node, idx);
4244 }
4245
4246 return (0);
4247}
4248
4249static inline const char *
4250deleg_perm_comment(zfs_deleg_note_t note)
4251{
4252 const char *str = "";
4253
4254 /* subcommands */
4255 switch (note) {
4256 /* SUBCOMMANDS */
4257 case ZFS_DELEG_NOTE_ALLOW:
4258 str = gettext("Must also have the permission that is being"
4259 "\n\t\t\t\tallowed");
4260 break;
4261 case ZFS_DELEG_NOTE_CLONE:
4262 str = gettext("Must also have the 'create' ability and 'mount'"
4263 "\n\t\t\t\tability in the origin file system");
4264 break;
4265 case ZFS_DELEG_NOTE_CREATE:
4266 str = gettext("Must also have the 'mount' ability");
4267 break;
4268 case ZFS_DELEG_NOTE_DESTROY:
4269 str = gettext("Must also have the 'mount' ability");
4270 break;
4271 case ZFS_DELEG_NOTE_DIFF:
4272 str = gettext("Allows lookup of paths within a dataset;"
4273 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4274 "\n\t\t\t\tin order to use zfs diff");
4275 break;
4276 case ZFS_DELEG_NOTE_HOLD:
4277 str = gettext("Allows adding a user hold to a snapshot");
4278 break;
4279 case ZFS_DELEG_NOTE_MOUNT:
4280 str = gettext("Allows mount/umount of ZFS datasets");
4281 break;
4282 case ZFS_DELEG_NOTE_PROMOTE:
4283 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4284 " 'promote' ability in the origin file system");
4285 break;
4286 case ZFS_DELEG_NOTE_RECEIVE:
4287 str = gettext("Must also have the 'mount' and 'create'"
4288 " ability");
4289 break;
4290 case ZFS_DELEG_NOTE_RELEASE:
4291 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4292 "might destroy the snapshot");
4293 break;
4294 case ZFS_DELEG_NOTE_RENAME:
4295 str = gettext("Must also have the 'mount' and 'create'"
4296 "\n\t\t\t\tability in the new parent");
4297 break;
4298 case ZFS_DELEG_NOTE_ROLLBACK:
4299 str = gettext("");
4300 break;
4301 case ZFS_DELEG_NOTE_SEND:
4302 str = gettext("");
4303 break;
4304 case ZFS_DELEG_NOTE_SHARE:
4305 str = gettext("Allows sharing file systems over NFS or SMB"
4306 "\n\t\t\t\tprotocols");
4307 break;
4308 case ZFS_DELEG_NOTE_SNAPSHOT:
4309 str = gettext("");
4310 break;
4311/*
4312 * case ZFS_DELEG_NOTE_VSCAN:
4313 * str = gettext("");
4314 * break;
4315 */
4316 /* OTHER */
4317 case ZFS_DELEG_NOTE_GROUPQUOTA:
4318 str = gettext("Allows accessing any groupquota@... property");
4319 break;
4320 case ZFS_DELEG_NOTE_GROUPUSED:
4321 str = gettext("Allows reading any groupused@... property");
4322 break;
4323 case ZFS_DELEG_NOTE_USERPROP:
4324 str = gettext("Allows changing any user property");
4325 break;
4326 case ZFS_DELEG_NOTE_USERQUOTA:
4327 str = gettext("Allows accessing any userquota@... property");
4328 break;
4329 case ZFS_DELEG_NOTE_USERUSED:
4330 str = gettext("Allows reading any userused@... property");
4331 break;
4332 /* other */
4333 default:
4334 str = "";
4335 }
4336
4337 return (str);
4338}
4339
4340struct allow_opts {
4341 boolean_t local;
4342 boolean_t descend;
4343 boolean_t user;
4344 boolean_t group;
4345 boolean_t everyone;
4346 boolean_t create;
4347 boolean_t set;
4348 boolean_t recursive; /* unallow only */
4349 boolean_t prt_usage;
4350
4351 boolean_t prt_perms;
4352 char *who;
4353 char *perms;
4354 const char *dataset;
4355};
4356
4357static inline int
4358prop_cmp(const void *a, const void *b)
4359{
4360 const char *str1 = *(const char **)a;
4361 const char *str2 = *(const char **)b;
4362 return (strcmp(str1, str2));
4363}
4364
4365static void
4366allow_usage(boolean_t un, boolean_t requested, const char *msg)
4367{
4368 const char *opt_desc[] = {
4369 "-h", gettext("show this help message and exit"),
4370 "-l", gettext("set permission locally"),
4371 "-d", gettext("set permission for descents"),
4372 "-u", gettext("set permission for user"),
4373 "-g", gettext("set permission for group"),
4374 "-e", gettext("set permission for everyone"),
4375 "-c", gettext("set create time permission"),
4376 "-s", gettext("define permission set"),
4377 /* unallow only */
4378 "-r", gettext("remove permissions recursively"),
4379 };
4380 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4381 size_t allow_size = unallow_size - 2;
4382 const char *props[ZFS_NUM_PROPS];
4383 int i;
4384 size_t count = 0;
4385 FILE *fp = requested ? stdout : stderr;
4386 zprop_desc_t *pdtbl = zfs_prop_get_table();
4387 const char *fmt = gettext("%-16s %-14s\t%s\n");
4388
4389 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4390 HELP_ALLOW));
4391 (void) fprintf(fp, gettext("Options:\n"));
4392 for (i = 0; i < (un ? unallow_size : allow_size); i++) {
4393 const char *opt = opt_desc[i++];
4394 const char *optdsc = opt_desc[i];
4395 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4396 }
4397
4398 (void) fprintf(fp, gettext("\nThe following permissions are "
4399 "supported:\n\n"));
4400 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4401 gettext("NOTES"));
4402 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4403 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4404 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4405 const char *perm_type = deleg_perm_type(perm_note);
4406 const char *perm_comment = deleg_perm_comment(perm_note);
4407 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4408 }
4409
4410 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4411 zprop_desc_t *pd = &pdtbl[i];
4412 if (pd->pd_visible != B_TRUE)
4413 continue;
4414
4415 if (pd->pd_attr == PROP_READONLY)
4416 continue;
4417
4418 props[count++] = pd->pd_name;
4419 }
4420 props[count] = NULL;
4421
4422 qsort(props, count, sizeof (char *), prop_cmp);
4423
4424 for (i = 0; i < count; i++)
4425 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4426
4427 if (msg != NULL)
4428 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4429
4430 exit(requested ? 0 : 2);
4431}
4432
4433static inline const char *
4434munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4435 char **permsp)
4436{
4437 if (un && argc == expected_argc - 1)
4438 *permsp = NULL;
4439 else if (argc == expected_argc)
4440 *permsp = argv[argc - 2];
4441 else
4442 allow_usage(un, B_FALSE,
4443 gettext("wrong number of parameters\n"));
4444
4445 return (argv[argc - 1]);
4446}
4447
4448static void
4449parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4450{
4451 int uge_sum = opts->user + opts->group + opts->everyone;
4452 int csuge_sum = opts->create + opts->set + uge_sum;
4453 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4454 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4455
4456 if (uge_sum > 1)
4457 allow_usage(un, B_FALSE,
4458 gettext("-u, -g, and -e are mutually exclusive\n"));
4459
4460 if (opts->prt_usage) {
4461 if (argc == 0 && all_sum == 0)
4462 allow_usage(un, B_TRUE, NULL);
4463 else
4464 usage(B_FALSE);
4465 }
4466
4467 if (opts->set) {
4468 if (csuge_sum > 1)
4469 allow_usage(un, B_FALSE,
4470 gettext("invalid options combined with -s\n"));
4471
4472 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4473 if (argv[0][0] != '@')
4474 allow_usage(un, B_FALSE,
4475 gettext("invalid set name: missing '@' prefix\n"));
4476 opts->who = argv[0];
4477 } else if (opts->create) {
4478 if (ldcsuge_sum > 1)
4479 allow_usage(un, B_FALSE,
4480 gettext("invalid options combined with -c\n"));
4481 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4482 } else if (opts->everyone) {
4483 if (csuge_sum > 1)
4484 allow_usage(un, B_FALSE,
4485 gettext("invalid options combined with -e\n"));
4486 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4487 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4488 == 0) {
4489 opts->everyone = B_TRUE;
4490 argc--;
4491 argv++;
4492 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
79e72243 4493 } else if (argc == 1 && !un) {
0b7936d5
AS		 4494 opts->prt_perms = B_TRUE;
4495 opts->dataset = argv[argc-1];
4496 } else {
4497 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4498 opts->who = argv[0];
4499 }
4500
4501 if (!opts->local && !opts->descend) {
4502 opts->local = B_TRUE;
4503 opts->descend = B_TRUE;
4504 }
4505}
4506
4507static void
4508store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4509 const char *who, char *perms, nvlist_t *top_nvl)
4510{
4511 int i;
4512 char ld[2] = { '\0', '\0' };
4513 char who_buf[ZFS_MAXNAMELEN+32];
4514 char base_type = ZFS_DELEG_WHO_UNKNOWN;
4515 char set_type = ZFS_DELEG_WHO_UNKNOWN;
4516 nvlist_t *base_nvl = NULL;
4517 nvlist_t *set_nvl = NULL;
4518 nvlist_t *nvl;
4519
4520 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4521 nomem();
4522 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4523 nomem();
4524
4525 switch (type) {
4526 case ZFS_DELEG_NAMED_SET_SETS:
4527 case ZFS_DELEG_NAMED_SET:
4528 set_type = ZFS_DELEG_NAMED_SET_SETS;
4529 base_type = ZFS_DELEG_NAMED_SET;
4530 ld[0] = ZFS_DELEG_NA;
4531 break;
4532 case ZFS_DELEG_CREATE_SETS:
4533 case ZFS_DELEG_CREATE:
4534 set_type = ZFS_DELEG_CREATE_SETS;
4535 base_type = ZFS_DELEG_CREATE;
4536 ld[0] = ZFS_DELEG_NA;
4537 break;
4538 case ZFS_DELEG_USER_SETS:
4539 case ZFS_DELEG_USER:
4540 set_type = ZFS_DELEG_USER_SETS;
4541 base_type = ZFS_DELEG_USER;
4542 if (local)
4543 ld[0] = ZFS_DELEG_LOCAL;
4544 if (descend)
4545 ld[1] = ZFS_DELEG_DESCENDENT;
4546 break;
4547 case ZFS_DELEG_GROUP_SETS:
4548 case ZFS_DELEG_GROUP:
4549 set_type = ZFS_DELEG_GROUP_SETS;
4550 base_type = ZFS_DELEG_GROUP;
4551 if (local)
4552 ld[0] = ZFS_DELEG_LOCAL;
4553 if (descend)
4554 ld[1] = ZFS_DELEG_DESCENDENT;
4555 break;
4556 case ZFS_DELEG_EVERYONE_SETS:
4557 case ZFS_DELEG_EVERYONE:
4558 set_type = ZFS_DELEG_EVERYONE_SETS;
4559 base_type = ZFS_DELEG_EVERYONE;
4560 if (local)
4561 ld[0] = ZFS_DELEG_LOCAL;
4562 if (descend)
4563 ld[1] = ZFS_DELEG_DESCENDENT;
4564 default:
4565 break;
4566 }
4567
4568 if (perms != NULL) {
4569 char *curr = perms;
4570 char *end = curr + strlen(perms);
4571
4572 while (curr < end) {
4573 char *delim = strchr(curr, ',');
4574 if (delim == NULL)
4575 delim = end;
4576 else
4577 *delim = '\0';
4578
4579 if (curr[0] == '@')
4580 nvl = set_nvl;
4581 else
4582 nvl = base_nvl;
4583
4584 (void) nvlist_add_boolean(nvl, curr);
4585 if (delim != end)
4586 *delim = ',';
4587 curr = delim + 1;
4588 }
4589
4590 for (i = 0; i < 2; i++) {
4591 char locality = ld[i];
4592 if (locality == 0)
4593 continue;
4594
4595 if (!nvlist_empty(base_nvl)) {
4596 if (who != NULL)
4597 (void) snprintf(who_buf,
4598 sizeof (who_buf), "%c%c$%s",
4599 base_type, locality, who);
4600 else
4601 (void) snprintf(who_buf,
4602 sizeof (who_buf), "%c%c$",
4603 base_type, locality);
4604
4605 (void) nvlist_add_nvlist(top_nvl, who_buf,
4606 base_nvl);
4607 }
4608
4609
4610 if (!nvlist_empty(set_nvl)) {
4611 if (who != NULL)
4612 (void) snprintf(who_buf,
4613 sizeof (who_buf), "%c%c$%s",
4614 set_type, locality, who);
4615 else
4616 (void) snprintf(who_buf,
4617 sizeof (who_buf), "%c%c$",
4618 set_type, locality);
4619
4620 (void) nvlist_add_nvlist(top_nvl, who_buf,
4621 set_nvl);
4622 }
4623 }
4624 } else {
4625 for (i = 0; i < 2; i++) {
4626 char locality = ld[i];
4627 if (locality == 0)
4628 continue;
4629
4630 if (who != NULL)
4631 (void) snprintf(who_buf, sizeof (who_buf),
4632 "%c%c$%s", base_type, locality, who);
4633 else
4634 (void) snprintf(who_buf, sizeof (who_buf),
4635 "%c%c$", base_type, locality);
4636 (void) nvlist_add_boolean(top_nvl, who_buf);
4637
4638 if (who != NULL)
4639 (void) snprintf(who_buf, sizeof (who_buf),
4640 "%c%c$%s", set_type, locality, who);
4641 else
4642 (void) snprintf(who_buf, sizeof (who_buf),
4643 "%c%c$", set_type, locality);
4644 (void) nvlist_add_boolean(top_nvl, who_buf);
4645 }
4646 }
4647}
4648
4649static int
4650construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
4651{
4652 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
4653 nomem();
4654
4655 if (opts->set) {
4656 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
4657 opts->descend, opts->who, opts->perms, *nvlp);
4658 } else if (opts->create) {
4659 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
4660 opts->descend, NULL, opts->perms, *nvlp);
4661 } else if (opts->everyone) {
4662 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
4663 opts->descend, NULL, opts->perms, *nvlp);
4664 } else {
4665 char *curr = opts->who;
4666 char *end = curr + strlen(curr);
4667
4668 while (curr < end) {
4669 const char *who;
4c069d34 4670 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN;
0b7936d5
AS		 4671 char *endch;
4672 char *delim = strchr(curr, ',');
4673 char errbuf[256];
4674 char id[64];
4675 struct passwd *p = NULL;
4676 struct group *g = NULL;
4677
4678 uid_t rid;
4679 if (delim == NULL)
4680 delim = end;
4681 else
4682 *delim = '\0';
4683
4684 rid = (uid_t)strtol(curr, &endch, 0);
4685 if (opts->user) {
4686 who_type = ZFS_DELEG_USER;
4687 if (*endch != '\0')
4688 p = getpwnam(curr);
4689 else
4690 p = getpwuid(rid);
4691
4692 if (p != NULL)
4693 rid = p->pw_uid;
4694 else {
4695 (void) snprintf(errbuf, 256, gettext(
4696 "invalid user %s"), curr);
4697 allow_usage(un, B_TRUE, errbuf);
4698 }
4699 } else if (opts->group) {
4700 who_type = ZFS_DELEG_GROUP;
4701 if (*endch != '\0')
4702 g = getgrnam(curr);
4703 else
4704 g = getgrgid(rid);
4705
4706 if (g != NULL)
4707 rid = g->gr_gid;
4708 else {
4709 (void) snprintf(errbuf, 256, gettext(
4710 "invalid group %s"), curr);
4711 allow_usage(un, B_TRUE, errbuf);
4712 }
4713 } else {
4714 if (*endch != '\0') {
4715 p = getpwnam(curr);
4716 } else {
4717 p = getpwuid(rid);
4718 }
4719
4720 if (p == NULL) {
4721 if (*endch != '\0') {
4722 g = getgrnam(curr);
4723 } else {
4724 g = getgrgid(rid);
4725 }
4726 }
4727
4728 if (p != NULL) {
4729 who_type = ZFS_DELEG_USER;
4730 rid = p->pw_uid;
4731 } else if (g != NULL) {
4732 who_type = ZFS_DELEG_GROUP;
4733 rid = g->gr_gid;
4734 } else {
4735 (void) snprintf(errbuf, 256, gettext(
4736 "invalid user/group %s"), curr);
4737 allow_usage(un, B_TRUE, errbuf);
4738 }
4739 }
4740
4741 (void) sprintf(id, "%u", rid);
4742 who = id;
4743
4744 store_allow_perm(who_type, opts->local,
4745 opts->descend, who, opts->perms, *nvlp);
4746 curr = delim + 1;
4747 }
4748 }
4749
4750 return (0);
4751}
4752
4753static void
4754print_set_creat_perms(uu_avl_t *who_avl)
4755{
4756 const char *sc_title[] = {
4757 gettext("Permission sets:\n"),
4758 gettext("Create time permissions:\n"),
4759 NULL
4760 };
4761 const char **title_ptr = sc_title;
4762 who_perm_node_t *who_node = NULL;
4763 int prev_weight = -1;
4764
4765 for (who_node = uu_avl_first(who_avl); who_node != NULL;
4766 who_node = uu_avl_next(who_avl, who_node)) {
4767 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4768 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4769 const char *who_name = who_node->who_perm.who_name;
4770 int weight = who_type2weight(who_type);
4771 boolean_t first = B_TRUE;
4772 deleg_perm_node_t *deleg_node;
4773
4774 if (prev_weight != weight) {
29b35200 4775 (void) printf("%s", *title_ptr++);
0b7936d5
AS		 4776 prev_weight = weight;
4777 }
4778
4779 if (who_name == NULL || strnlen(who_name, 1) == 0)
4780 (void) printf("\t");
4781 else
4782 (void) printf("\t%s ", who_name);
4783
4784 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
4785 deleg_node = uu_avl_next(avl, deleg_node)) {
4786 if (first) {
4787 (void) printf("%s",
4788 deleg_node->dpn_perm.dp_name);
4789 first = B_FALSE;
4790 } else
4791 (void) printf(",%s",
4792 deleg_node->dpn_perm.dp_name);
4793 }
4794
4795 (void) printf("\n");
4796 }
4797}
34dc7c2f 4798
0b7936d5
AS		 4799static void inline
4800print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
4801 const char *title)
4802{
4803 who_perm_node_t *who_node = NULL;
4804 boolean_t prt_title = B_TRUE;
4805 uu_avl_walk_t *walk;
34dc7c2f 4806
0b7936d5
AS		 4807 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
4808 nomem();
34dc7c2f 4809
0b7936d5
AS		 4810 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
4811 const char *who_name = who_node->who_perm.who_name;
4812 const char *nice_who_name = who_node->who_perm.who_ug_name;
4813 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4814 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4815 char delim = ' ';
4816 deleg_perm_node_t *deleg_node;
4817 boolean_t prt_who = B_TRUE;
4818
4819 for (deleg_node = uu_avl_first(avl);
4820 deleg_node != NULL;
4821 deleg_node = uu_avl_next(avl, deleg_node)) {
4822 if (local != deleg_node->dpn_perm.dp_local ||
4823 descend != deleg_node->dpn_perm.dp_descend)
4824 continue;
4825
4826 if (prt_who) {
4827 const char *who = NULL;
4828 if (prt_title) {
4829 prt_title = B_FALSE;
29b35200 4830 (void) printf("%s", title);
0b7936d5
AS		 4831 }
4832
4833 switch (who_type) {
4834 case ZFS_DELEG_USER_SETS:
4835 case ZFS_DELEG_USER:
4836 who = gettext("user");
4837 if (nice_who_name)
4838 who_name = nice_who_name;
4839 break;
4840 case ZFS_DELEG_GROUP_SETS:
4841 case ZFS_DELEG_GROUP:
4842 who = gettext("group");
4843 if (nice_who_name)
4844 who_name = nice_who_name;
4845 break;
4846 case ZFS_DELEG_EVERYONE_SETS:
4847 case ZFS_DELEG_EVERYONE:
4848 who = gettext("everyone");
4849 who_name = NULL;
4850 default:
4851 break;
4852 }
4853
4854 prt_who = B_FALSE;
4855 if (who_name == NULL)
4856 (void) printf("\t%s", who);
4857 else
4858 (void) printf("\t%s %s", who, who_name);
34dc7c2f 4859 }
0b7936d5
AS		 4860
4861 (void) printf("%c%s", delim,
4862 deleg_node->dpn_perm.dp_name);
4863 delim = ',';
34dc7c2f 4864 }
34dc7c2f 4865
0b7936d5
AS		 4866 if (!prt_who)
4867 (void) printf("\n");
4868 }
428870ff 4869
0b7936d5
AS		 4870 uu_avl_walk_end(walk);
4871}
34dc7c2f 4872
0b7936d5
AS		 4873static void
4874print_fs_perms(fs_perm_set_t *fspset)
4875{
4876 fs_perm_node_t *node = NULL;
4877 char buf[ZFS_MAXNAMELEN+32];
4878 const char *dsname = buf;
4879
4880 for (node = uu_list_first(fspset->fsps_list); node != NULL;
4881 node = uu_list_next(fspset->fsps_list, node)) {
4882 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
4883 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
4884 int left = 0;
4885
4886 (void) snprintf(buf, ZFS_MAXNAMELEN+32,
4887 gettext("---- Permissions on %s "),
4888 node->fspn_fsperm.fsp_name);
29b35200 4889 (void) printf("%s", dsname);
0b7936d5
AS		 4890 left = 70 - strlen(buf);
4891 while (left-- > 0)
4892 (void) printf("-");
4893 (void) printf("\n");
4894
4895 print_set_creat_perms(sc_avl);
4896 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
4897 gettext("Local permissions:\n"));
4898 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
4899 gettext("Descendent permissions:\n"));
4900 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
4901 gettext("Local+Descendent permissions:\n"));
428870ff 4902 }
0b7936d5 4903}
34dc7c2f 4904
0b7936d5
AS		 4905static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
4906
4907struct deleg_perms {
4908 boolean_t un;
4909 nvlist_t *nvl;
4910};
4911
4912static int
4913set_deleg_perms(zfs_handle_t *zhp, void *data)
4914{
4915 struct deleg_perms *perms = (struct deleg_perms *)data;
4916 zfs_type_t zfs_type = zfs_get_type(zhp);
4917
4918 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
4919 return (0);
4920
4921 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
34dc7c2f
BB		 4922}
4923
34dc7c2f 4924static int
0b7936d5 4925zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
34dc7c2f 4926{
0b7936d5
AS		 4927 zfs_handle_t *zhp;
4928 nvlist_t *perm_nvl = NULL;
4929 nvlist_t *update_perm_nvl = NULL;
4930 int error = 1;
4931 int c;
4932 struct allow_opts opts = { 0 };
34dc7c2f 4933
0b7936d5
AS		 4934 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
4935
4936 /* check opts */
4937 while ((c = getopt(argc, argv, optstr)) != -1) {
34dc7c2f 4938 switch (c) {
0b7936d5
AS		 4939 case 'l':
4940 opts.local = B_TRUE;
4941 break;
34dc7c2f 4942 case 'd':
0b7936d5 4943 opts.descend = B_TRUE;
34dc7c2f 4944 break;
0b7936d5
AS		 4945 case 'u':
4946 opts.user = B_TRUE;
428870ff 4947 break;
0b7936d5
AS		 4948 case 'g':
4949 opts.group = B_TRUE;
34dc7c2f 4950 break;
0b7936d5
AS		 4951 case 'e':
4952 opts.everyone = B_TRUE;
d164b209 4953 break;
0b7936d5
AS		 4954 case 's':
4955 opts.set = B_TRUE;
34dc7c2f 4956 break;
0b7936d5
AS		 4957 case 'c':
4958 opts.create = B_TRUE;
4959 break;
4960 case 'r':
4961 opts.recursive = B_TRUE;
34dc7c2f
BB		 4962 break;
4963 case ':':
4964 (void) fprintf(stderr, gettext("missing argument for "
4965 "'%c' option\n"), optopt);
4966 usage(B_FALSE);
4967 break;
0b7936d5
AS		 4968 case 'h':
4969 opts.prt_usage = B_TRUE;
4970 break;
34dc7c2f
BB		 4971 case '?':
4972 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4973 optopt);
4974 usage(B_FALSE);
4975 }
4976 }
4977
4978 argc -= optind;
4979 argv += optind;
4980
0b7936d5
AS		 4981 /* check arguments */
4982 parse_allow_args(argc, argv, un, &opts);
4983
4984 /* try to open the dataset */
684e8c06
AE		 4985 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
4986 ZFS_TYPE_VOLUME)) == NULL) {
4987 (void) fprintf(stderr, "Failed to open dataset: %s\n",
0b7936d5
AS		 4988 opts.dataset);
4989 return (-1);
34dc7c2f 4990 }
0b7936d5
AS		 4991
4992 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
4993 goto cleanup2;
4994
4995 fs_perm_set_init(&fs_perm_set);
4996 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
684e8c06 4997 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
0b7936d5 4998 goto cleanup1;
34dc7c2f
BB		 4999 }
5000
0b7936d5
AS		 5001 if (opts.prt_perms)
5002 print_fs_perms(&fs_perm_set);
5003 else {
5004 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5005 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5006 goto cleanup0;
5007
5008 if (un && opts.recursive) {
5009 struct deleg_perms data = { un, update_perm_nvl };
5010 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5011 &data) != 0)
5012 goto cleanup0;
5013 }
34dc7c2f
BB		 5014 }
5015
0b7936d5 5016 error = 0;
34dc7c2f 5017
0b7936d5
AS		 5018cleanup0:
5019 nvlist_free(perm_nvl);
5020 if (update_perm_nvl != NULL)
5021 nvlist_free(update_perm_nvl);
5022cleanup1:
5023 fs_perm_set_fini(&fs_perm_set);
5024cleanup2:
5025 zfs_close(zhp);
5026
5027 return (error);
5028}
5029
5030/*
5031 * zfs allow [-r] [-t] <tag> <snap> ...
5032 *
5033 * -r Recursively hold
5034 * -t Temporary hold (hidden option)
5035 *
5036 * Apply a user-hold with the given tag to the list of snapshots.
5037 */
5038static int
5039zfs_do_allow(int argc, char **argv)
5040{
5041 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5042}
5043
5044/*
5045 * zfs unallow [-r] [-t] <tag> <snap> ...
5046 *
5047 * -r Recursively hold
5048 * -t Temporary hold (hidden option)
5049 *
5050 * Apply a user-hold with the given tag to the list of snapshots.
5051 */
5052static int
5053zfs_do_unallow(int argc, char **argv)
5054{
5055 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
34dc7c2f
BB		 5056}
5057
45d1cae3
BB		 5058static int
5059zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5060{
5061 int errors = 0;
5062 int i;
5063 const char *tag;
5064 boolean_t recursive = B_FALSE;
428870ff
BB		 5065 boolean_t temphold = B_FALSE;
5066 const char *opts = holding ? "rt" : "r";
45d1cae3 5067 int c;
45d1cae3
BB		 5068
5069 /* check options */
428870ff 5070 while ((c = getopt(argc, argv, opts)) != -1) {
45d1cae3
BB		 5071 switch (c) {
5072 case 'r':
5073 recursive = B_TRUE;
5074 break;
428870ff
BB		 5075 case 't':
5076 temphold = B_TRUE;
5077 break;
45d1cae3
BB		 5078 case '?':
5079 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5080 optopt);
5081 usage(B_FALSE);
5082 }
5083 }
5084
5085 argc -= optind;
5086 argv += optind;
5087
5088 /* check number of arguments */
5089 if (argc < 2)
5090 usage(B_FALSE);
5091
5092 tag = argv[0];
5093 --argc;
5094 ++argv;
5095
428870ff
BB		 5096 if (holding && tag[0] == '.') {
5097 /* tags starting with '.' are reserved for libzfs */
5098 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5099 usage(B_FALSE);
45d1cae3
BB		 5100 }
5101
5102 for (i = 0; i < argc; ++i) {
5103 zfs_handle_t *zhp;
5104 char parent[ZFS_MAXNAMELEN];
5105 const char *delim;
5106 char *path = argv[i];
5107
5108 delim = strchr(path, '@');
5109 if (delim == NULL) {
5110 (void) fprintf(stderr,
5111 gettext("'%s' is not a snapshot\n"), path);
5112 ++errors;
5113 continue;
5114 }
5115 (void) strncpy(parent, path, delim - path);
5116 parent[delim - path] = '\0';
5117
5118 zhp = zfs_open(g_zfs, parent,
5119 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5120 if (zhp == NULL) {
5121 ++errors;
5122 continue;
5123 }
428870ff
BB		 5124 if (holding) {
5125 if (zfs_hold(zhp, delim+1, tag, recursive,
572e2857 5126 temphold, B_FALSE, -1, 0, 0) != 0)
428870ff
BB		 5127 ++errors;
5128 } else {
5129 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5130 ++errors;
5131 }
45d1cae3
BB		 5132 zfs_close(zhp);
5133 }
5134
5135 return (errors != 0);
5136}
5137
5138/*
428870ff 5139 * zfs hold [-r] [-t] <tag> <snap> ...
45d1cae3 5140 *
428870ff
BB		 5141 * -r Recursively hold
5142 * -t Temporary hold (hidden option)
45d1cae3
BB		 5143 *
5144 * Apply a user-hold with the given tag to the list of snapshots.
5145 */
5146static int
5147zfs_do_hold(int argc, char **argv)
5148{
5149 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5150}
5151
5152/*
5153 * zfs release [-r] <tag> <snap> ...
5154 *
428870ff 5155 * -r Recursively release
45d1cae3
BB		 5156 *
5157 * Release a user-hold with the given tag from the list of snapshots.
5158 */
5159static int
5160zfs_do_release(int argc, char **argv)
5161{
5162 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5163}
5164
0b7936d5
AS		 5165typedef struct holds_cbdata {
5166 boolean_t cb_recursive;
5167 const char *cb_snapname;
5168 nvlist_t **cb_nvlp;
5169 size_t cb_max_namelen;
5170 size_t cb_max_taglen;
5171} holds_cbdata_t;
5172
5173#define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5174#define DATETIME_BUF_LEN (32)
5175/*
5176 *
5177 */
5178static void
5179print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl)
5180{
5181 int i;
5182 nvpair_t *nvp = NULL;
5183 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5184 const char *col;
5185
5186 if (!scripted) {
5187 for (i = 0; i < 3; i++) {
5188 col = gettext(hdr_cols[i]);
5189 if (i < 2)
5190 (void) printf("%-*s ", i ? tagwidth : nwidth,
5191 col);
5192 else
5193 (void) printf("%s\n", col);
5194 }
5195 }
5196
5197 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5198 char *zname = nvpair_name(nvp);
5199 nvlist_t *nvl2;
5200 nvpair_t *nvp2 = NULL;
5201 (void) nvpair_value_nvlist(nvp, &nvl2);
5202 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5203 char tsbuf[DATETIME_BUF_LEN];
5204 char *tagname = nvpair_name(nvp2);
5205 uint64_t val = 0;
5206 time_t time;
5207 struct tm t;
5208 char sep = scripted ? '\t' : ' ';
5209 int sepnum = scripted ? 1 : 2;
5210
5211 (void) nvpair_value_uint64(nvp2, &val);
5212 time = (time_t)val;
5213 (void) localtime_r(&time, &t);
5214 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5215 gettext(STRFTIME_FMT_STR), &t);
5216
5217 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5218 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5219 }
5220 }
5221}
5222
5223/*
5224 * Generic callback function to list a dataset or snapshot.
5225 */
5226static int
5227holds_callback(zfs_handle_t *zhp, void *data)
5228{
5229 holds_cbdata_t *cbp = data;
5230 nvlist_t *top_nvl = *cbp->cb_nvlp;
5231 nvlist_t *nvl = NULL;
5232 nvpair_t *nvp = NULL;
5233 const char *zname = zfs_get_name(zhp);
5234 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN);
5235
5236 if (cbp->cb_recursive) {
5237 const char *snapname;
5238 char *delim = strchr(zname, '@');
5239 if (delim == NULL)
5240 return (0);
5241
5242 snapname = delim + 1;
5243 if (strcmp(cbp->cb_snapname, snapname))
5244 return (0);
5245 }
5246
5247 if (zfs_get_holds(zhp, &nvl) != 0)
5248 return (-1);
5249
5250 if (znamelen > cbp->cb_max_namelen)
5251 cbp->cb_max_namelen = znamelen;
5252
5253 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5254 const char *tag = nvpair_name(nvp);
5255 size_t taglen = strnlen(tag, MAXNAMELEN);
5256 if (taglen > cbp->cb_max_taglen)
5257 cbp->cb_max_taglen = taglen;
5258 }
5259
5260 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5261}
5262
5263/*
5264 * zfs holds [-r] <snap> ...
5265 *
5266 * -r Recursively hold
5267 */
5268static int
5269zfs_do_holds(int argc, char **argv)
5270{
5271 int errors = 0;
5272 int c;
5273 int i;
5274 boolean_t scripted = B_FALSE;
5275 boolean_t recursive = B_FALSE;
5276 const char *opts = "rH";
5277 nvlist_t *nvl;
5278
5279 int types = ZFS_TYPE_SNAPSHOT;
5280 holds_cbdata_t cb = { 0 };
5281
5282 int limit = 0;
ad60af8e 5283 int ret = 0;
0b7936d5
AS		 5284 int flags = 0;
5285
5286 /* check options */
5287 while ((c = getopt(argc, argv, opts)) != -1) {
5288 switch (c) {
5289 case 'r':
5290 recursive = B_TRUE;
5291 break;
5292 case 'H':
5293 scripted = B_TRUE;
5294 break;
5295 case '?':
5296 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5297 optopt);
5298 usage(B_FALSE);
5299 }
5300 }
5301
5302 if (recursive) {
5303 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5304 flags |= ZFS_ITER_RECURSE;
5305 }
5306
5307 argc -= optind;
5308 argv += optind;
5309
5310 /* check number of arguments */
5311 if (argc < 1)
5312 usage(B_FALSE);
5313
5314 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5315 nomem();
5316
5317 for (i = 0; i < argc; ++i) {
5318 char *snapshot = argv[i];
5319 const char *delim;
5320 const char *snapname;
5321
5322 delim = strchr(snapshot, '@');
5323 if (delim == NULL) {
5324 (void) fprintf(stderr,
5325 gettext("'%s' is not a snapshot\n"), snapshot);
5326 ++errors;
5327 continue;
5328 }
5329 snapname = delim + 1;
5330 if (recursive)
5331 snapshot[delim - snapshot] = '\0';
5332
5333 cb.cb_recursive = recursive;
5334 cb.cb_snapname = snapname;
5335 cb.cb_nvlp = &nvl;
5336
5337 /*
5338 * 1. collect holds data, set format options
5339 */
5340 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5341 holds_callback, &cb);
5342 if (ret != 0)
5343 ++errors;
5344 }
5345
5346 /*
5347 * 2. print holds data
5348 */
5349 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5350
5351 if (nvlist_empty(nvl))
42cb3819 5352 (void) fprintf(stderr, gettext("no datasets available\n"));
0b7936d5
AS		 5353
5354 nvlist_free(nvl);
5355
5356 return (0 != errors);
5357}
5358
34dc7c2f
BB		 5359#define CHECK_SPINNER 30
5360#define SPINNER_TIME 3 /* seconds */
5361#define MOUNT_TIME 5 /* seconds */
5362
5363static int
5364get_one_dataset(zfs_handle_t *zhp, void *data)
5365{
428870ff 5366 static char *spin[] = { "-", "\\", "|", "/" };
34dc7c2f
BB		 5367 static int spinval = 0;
5368 static int spincheck = 0;
5369 static time_t last_spin_time = (time_t)0;
572e2857 5370 get_all_cb_t *cbp = data;
34dc7c2f
BB		 5371 zfs_type_t type = zfs_get_type(zhp);
5372
5373 if (cbp->cb_verbose) {
5374 if (--spincheck < 0) {
5375 time_t now = time(NULL);
5376 if (last_spin_time + SPINNER_TIME < now) {
428870ff 5377 update_progress(spin[spinval++ % 4]);
34dc7c2f
BB		 5378 last_spin_time = now;
5379 }
5380 spincheck = CHECK_SPINNER;
5381 }
5382 }
5383
5384 /*
254255f7 5385 * Iterate over any nested datasets.
34dc7c2f 5386 */
572e2857 5387 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
34dc7c2f
BB		 5388 zfs_close(zhp);
5389 return (1);
5390 }
5391
5392 /*
5393 * Skip any datasets whose type does not match.
5394 */
572e2857 5395 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
34dc7c2f
BB		 5396 zfs_close(zhp);
5397 return (0);
5398 }
572e2857
BB		 5399 libzfs_add_handle(cbp, zhp);
5400 assert(cbp->cb_used <= cbp->cb_alloc);
34dc7c2f
BB		 5401
5402 return (0);
5403}
5404
5405static void
572e2857 5406get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
34dc7c2f 5407{
572e2857 5408 get_all_cb_t cb = { 0 };
34dc7c2f 5409 cb.cb_verbose = verbose;
572e2857 5410 cb.cb_getone = get_one_dataset;
34dc7c2f 5411
428870ff
BB		 5412 if (verbose)
5413 set_progress_header(gettext("Reading ZFS config"));
34dc7c2f
BB		 5414 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5415
5416 *dslist = cb.cb_handles;
5417 *count = cb.cb_used;
5418
428870ff
BB		 5419 if (verbose)
5420 finish_progress(gettext("done."));
34dc7c2f
BB		 5421}
5422
34dc7c2f
BB		 5423/*
5424 * Generic callback for sharing or mounting filesystems. Because the code is so
5425 * similar, we have a common function with an extra parameter to determine which
5426 * mode we are using.
5427 */
5428#define OP_SHARE 0x1
5429#define OP_MOUNT 0x2
5430
5431/*
5432 * Share or mount a dataset.
5433 */
5434static int
5435share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5436 boolean_t explicit, const char *options)
5437{
5438 char mountpoint[ZFS_MAXPROPLEN];
5439 char shareopts[ZFS_MAXPROPLEN];
5440 char smbshareopts[ZFS_MAXPROPLEN];
5441 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5442 struct mnttab mnt;
5443 uint64_t zoned, canmount;
34dc7c2f
BB		 5444 boolean_t shared_nfs, shared_smb;
5445
572e2857 5446 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
34dc7c2f 5447
572e2857
BB		 5448 /*
5449 * Check to make sure we can mount/share this dataset. If we
5450 * are in the global zone and the filesystem is exported to a
5451 * local zone, or if we are in a local zone and the
5452 * filesystem is not exported, then it is an error.
5453 */
5454 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
34dc7c2f 5455
572e2857
BB		 5456 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5457 if (!explicit)
5458 return (0);
34dc7c2f 5459
572e2857
BB		 5460 (void) fprintf(stderr, gettext("cannot %s '%s': "
5461 "dataset is exported to a local zone\n"), cmdname,
5462 zfs_get_name(zhp));
5463 return (1);
34dc7c2f 5464
572e2857
BB		 5465 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5466 if (!explicit)
5467 return (0);
34dc7c2f 5468
572e2857
BB		 5469 (void) fprintf(stderr, gettext("cannot %s '%s': "
5470 "permission denied\n"), cmdname,
5471 zfs_get_name(zhp));
5472 return (1);
5473 }
34dc7c2f 5474
572e2857
BB		 5475 /*
5476 * Ignore any filesystems which don't apply to us. This
5477 * includes those with a legacy mountpoint, or those with
5478 * legacy share options.
5479 */
5480 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5481 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5482 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5483 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5484 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5485 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5486
5487 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5488 strcmp(smbshareopts, "off") == 0) {
5489 if (!explicit)
5490 return (0);
34dc7c2f 5491
572e2857
BB		 5492 (void) fprintf(stderr, gettext("cannot share '%s': "
5493 "legacy share\n"), zfs_get_name(zhp));
5494 (void) fprintf(stderr, gettext("use share(1M) to "
5495 "share this filesystem, or set "
5496 "sharenfs property on\n"));
5497 return (1);
5498 }
34dc7c2f 5499
572e2857
BB		 5500 /*
5501 * We cannot share or mount legacy filesystems. If the
5502 * shareopts is non-legacy but the mountpoint is legacy, we
5503 * treat it as a legacy share.
5504 */
5505 if (strcmp(mountpoint, "legacy") == 0) {
5506 if (!explicit)
5507 return (0);
34dc7c2f 5508
572e2857
BB		 5509 (void) fprintf(stderr, gettext("cannot %s '%s': "
5510 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5511 (void) fprintf(stderr, gettext("use %s(1M) to "
5512 "%s this filesystem\n"), cmdname, cmdname);
5513 return (1);
5514 }
34dc7c2f 5515
572e2857
BB		 5516 if (strcmp(mountpoint, "none") == 0) {
5517 if (!explicit)
5518 return (0);
34dc7c2f 5519
572e2857
BB		 5520 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5521 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5522 return (1);
5523 }
34dc7c2f 5524
572e2857
BB		 5525 /*
5526 * canmount explicit outcome
5527 * on no pass through
5528 * on yes pass through
5529 * off no return 0
5530 * off yes display error, return 1
5531 * noauto no return 0
5532 * noauto yes pass through
5533 */
5534 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5535 if (canmount == ZFS_CANMOUNT_OFF) {
5536 if (!explicit)
5537 return (0);
5538
5539 (void) fprintf(stderr, gettext("cannot %s '%s': "
5540 "'canmount' property is set to 'off'\n"), cmdname,
5541 zfs_get_name(zhp));
5542 return (1);
5543 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5544 return (0);
5545 }
5546
5547 /*
5548 * At this point, we have verified that the mountpoint and/or
5549 * shareopts are appropriate for auto management. If the
5550 * filesystem is already mounted or shared, return (failing
5551 * for explicit requests); otherwise mount or share the
5552 * filesystem.
5553 */
5554 switch (op) {
5555 case OP_SHARE:
5556
5557 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5558 shared_smb = zfs_is_shared_smb(zhp, NULL);
5559
149e873a
BB		 5560 if ((shared_nfs && shared_smb) ||
5561 ((shared_nfs && strcmp(shareopts, "on") == 0) &&
5562 (strcmp(smbshareopts, "off") == 0)) ||
5563 ((shared_smb && strcmp(smbshareopts, "on") == 0) &&
5564 (strcmp(shareopts, "off") == 0))) {
34dc7c2f
BB		 5565 if (!explicit)
5566 return (0);
5567
572e2857
BB		 5568 (void) fprintf(stderr, gettext("cannot share "
5569 "'%s': filesystem already shared\n"),
34dc7c2f
BB		 5570 zfs_get_name(zhp));
5571 return (1);
34dc7c2f
BB		 5572 }
5573
572e2857
BB		 5574 if (!zfs_is_mounted(zhp, NULL) &&
5575 zfs_mount(zhp, NULL, 0) != 0)
5576 return (1);
34dc7c2f 5577
572e2857
BB		 5578 if (protocol == NULL) {
5579 if (zfs_shareall(zhp) != 0)
34dc7c2f 5580 return (1);
572e2857
BB		 5581 } else if (strcmp(protocol, "nfs") == 0) {
5582 if (zfs_share_nfs(zhp))
34dc7c2f 5583 return (1);
572e2857
BB		 5584 } else if (strcmp(protocol, "smb") == 0) {
5585 if (zfs_share_smb(zhp))
34dc7c2f 5586 return (1);
572e2857
BB		 5587 } else {
5588 (void) fprintf(stderr, gettext("cannot share "
5589 "'%s': invalid share type '%s' "
5590 "specified\n"),
5591 zfs_get_name(zhp), protocol);
5592 return (1);
5593 }
34dc7c2f 5594
572e2857 5595 break;
34dc7c2f 5596
572e2857
BB		 5597 case OP_MOUNT:
5598 if (options == NULL)
5599 mnt.mnt_mntopts = "";
5600 else
5601 mnt.mnt_mntopts = (char *)options;
34dc7c2f 5602
572e2857
BB		 5603 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5604 zfs_is_mounted(zhp, NULL)) {
5605 if (!explicit)
5606 return (0);
34dc7c2f 5607
572e2857
BB		 5608 (void) fprintf(stderr, gettext("cannot mount "
5609 "'%s': filesystem already mounted\n"),
5610 zfs_get_name(zhp));
5611 return (1);
34dc7c2f 5612 }
572e2857
BB		 5613
5614 if (zfs_mount(zhp, options, flags) != 0)
5615 return (1);
5616 break;
5617 }
34dc7c2f 5618
34dc7c2f
BB		 5619 return (0);
5620}
5621
5622/*
5623 * Reports progress in the form "(current/total)". Not thread-safe.
5624 */
5625static void
5626report_mount_progress(int current, int total)
5627{
428870ff 5628 static time_t last_progress_time = 0;
34dc7c2f 5629 time_t now = time(NULL);
428870ff 5630 char info[32];
34dc7c2f
BB		 5631
5632 /* report 1..n instead of 0..n-1 */
5633 ++current;
5634
5635 /* display header if we're here for the first time */
5636 if (current == 1) {
428870ff 5637 set_progress_header(gettext("Mounting ZFS filesystems"));
34dc7c2f
BB		 5638 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
5639 /* too soon to report again */
5640 return;
5641 }
5642
5643 last_progress_time = now;
5644
428870ff 5645 (void) sprintf(info, "(%d/%d)", current, total);
34dc7c2f 5646
428870ff
BB		 5647 if (current == total)
5648 finish_progress(info);
5649 else
5650 update_progress(info);
34dc7c2f
BB		 5651}
5652
5653static void
5654append_options(char *mntopts, char *newopts)
5655{
5656 int len = strlen(mntopts);
5657
5658 /* original length plus new string to append plus 1 for the comma */
5659 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
5660 (void) fprintf(stderr, gettext("the opts argument for "
d6320ddb 5661 "'%s' option is too long (more than %d chars)\n"),
34dc7c2f
BB		 5662 "-o", MNT_LINE_MAX);
5663 usage(B_FALSE);
5664 }
5665
5666 if (*mntopts)
5667 mntopts[len++] = ',';
5668
5669 (void) strcpy(&mntopts[len], newopts);
5670}
5671
5672static int
5673share_mount(int op, int argc, char **argv)
5674{
5675 int do_all = 0;
5676 boolean_t verbose = B_FALSE;
5677 int c, ret = 0;
5678 char *options = NULL;
572e2857 5679 int flags = 0;
34dc7c2f
BB		 5680
5681 /* check options */
e18be9a6 5682 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
34dc7c2f
BB		 5683 != -1) {
5684 switch (c) {
5685 case 'a':
5686 do_all = 1;
5687 break;
5688 case 'v':
5689 verbose = B_TRUE;
5690 break;
5691 case 'o':
5692 if (*optarg == '\0') {
5693 (void) fprintf(stderr, gettext("empty mount "
5694 "options (-o) specified\n"));
5695 usage(B_FALSE);
5696 }
5697
5698 if (options == NULL)
5699 options = safe_malloc(MNT_LINE_MAX + 1);
5700
5701 /* option validation is done later */
5702 append_options(options, optarg);
5703 break;
e18be9a6
SC		 5704 case 'O':
5705 flags |= MS_OVERLAY;
5706 break;
34dc7c2f
BB		 5707 case ':':
5708 (void) fprintf(stderr, gettext("missing argument for "
5709 "'%c' option\n"), optopt);
5710 usage(B_FALSE);
5711 break;
5712 case '?':
5713 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5714 optopt);
5715 usage(B_FALSE);
5716 }
5717 }
5718
5719 argc -= optind;
5720 argv += optind;
5721
5722 /* check number of arguments */
5723 if (do_all) {
5724 zfs_handle_t **dslist = NULL;
5725 size_t i, count = 0;
5726 char *protocol = NULL;
5727
572e2857
BB		 5728 if (op == OP_SHARE && argc > 0) {
5729 if (strcmp(argv[0], "nfs") != 0 &&
5730 strcmp(argv[0], "smb") != 0) {
34dc7c2f 5731 (void) fprintf(stderr, gettext("share type "
428870ff 5732 "must be 'nfs' or 'smb'\n"));
34dc7c2f
BB		 5733 usage(B_FALSE);
5734 }
5735 protocol = argv[0];
5736 argc--;
5737 argv++;
34dc7c2f
BB		 5738 }
5739
5740 if (argc != 0) {
5741 (void) fprintf(stderr, gettext("too many arguments\n"));
5742 usage(B_FALSE);
5743 }
5744
428870ff 5745 start_progress_timer();
572e2857 5746 get_all_datasets(&dslist, &count, verbose);
34dc7c2f
BB		 5747
5748 if (count == 0)
5749 return (0);
5750
572e2857 5751 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
34dc7c2f
BB		 5752
5753 for (i = 0; i < count; i++) {
5754 if (verbose)
5755 report_mount_progress(i, count);
5756
5757 if (share_mount_one(dslist[i], op, flags, protocol,
5758 B_FALSE, options) != 0)
5759 ret = 1;
5760 zfs_close(dslist[i]);
5761 }
5762
5763 free(dslist);
5764 } else if (argc == 0) {
5765 struct mnttab entry;
5766
5767 if ((op == OP_SHARE) || (options != NULL)) {
5768 (void) fprintf(stderr, gettext("missing filesystem "
5769 "argument (specify -a for all)\n"));
5770 usage(B_FALSE);
5771 }
5772
5773 /*
9a616b5d 5774 * When mount is given no arguments, go through /etc/mtab and
34dc7c2f
BB		 5775 * display any active ZFS mounts. We hide any snapshots, since
5776 * they are controlled automatically.
5777 */
5778 rewind(mnttab_file);
5779 while (getmntent(mnttab_file, &entry) == 0) {
5780 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
5781 strchr(entry.mnt_special, '@') != NULL)
5782 continue;
5783
5784 (void) printf("%-30s %s\n", entry.mnt_special,
5785 entry.mnt_mountp);
5786 }
5787
5788 } else {
5789 zfs_handle_t *zhp;
5790
34dc7c2f
BB		 5791 if (argc > 1) {
5792 (void) fprintf(stderr,
5793 gettext("too many arguments\n"));
5794 usage(B_FALSE);
5795 }
5796
572e2857
BB		 5797 if ((zhp = zfs_open(g_zfs, argv[0],
5798 ZFS_TYPE_FILESYSTEM)) == NULL) {
34dc7c2f
BB		 5799 ret = 1;
5800 } else {
5801 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
5802 options);
5803 zfs_close(zhp);
5804 }
5805 }
5806
5807 return (ret);
5808}
5809
5810/*
428870ff 5811 * zfs mount -a [nfs]
34dc7c2f
BB		 5812 * zfs mount filesystem
5813 *
5814 * Mount all filesystems, or mount the given filesystem.
5815 */
5816static int
5817zfs_do_mount(int argc, char **argv)
5818{
5819 return (share_mount(OP_MOUNT, argc, argv));
5820}
5821
5822/*
428870ff 5823 * zfs share -a [nfs | smb]
34dc7c2f
BB		 5824 * zfs share filesystem
5825 *
5826 * Share all filesystems, or share the given filesystem.
5827 */
5828static int
5829zfs_do_share(int argc, char **argv)
5830{
5831 return (share_mount(OP_SHARE, argc, argv));
5832}
5833
5834typedef struct unshare_unmount_node {
5835 zfs_handle_t *un_zhp;
5836 char *un_mountp;
5837 uu_avl_node_t un_avlnode;
5838} unshare_unmount_node_t;
5839
5840/* ARGSUSED */
5841static int
5842unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
5843{
5844 const unshare_unmount_node_t *l = larg;
5845 const unshare_unmount_node_t *r = rarg;
5846
5847 return (strcmp(l->un_mountp, r->un_mountp));
5848}
5849
5850/*
5851 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
9a616b5d 5852 * absolute path, find the entry /etc/mtab, verify that its a ZFS filesystem,
34dc7c2f
BB		 5853 * and unmount it appropriately.
5854 */
5855static int
5856unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
5857{
5858 zfs_handle_t *zhp;
ad60af8e 5859 int ret = 0;
34dc7c2f
BB		 5860 struct stat64 statbuf;
5861 struct extmnttab entry;
5862 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
5863 ino_t path_inode;
5864
5865 /*
9a616b5d 5866 * Search for the path in /etc/mtab. Rather than looking for the
34dc7c2f
BB		 5867 * specific path, which can be fooled by non-standard paths (i.e. ".."
5868 * or "//"), we stat() the path and search for the corresponding
5869 * (major,minor) device pair.
5870 */
5871 if (stat64(path, &statbuf) != 0) {
5872 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5873 cmdname, path, strerror(errno));
5874 return (1);
5875 }
5876 path_inode = statbuf.st_ino;
5877
5878 /*
5879 * Search for the given (major,minor) pair in the mount table.
5880 */
5881 rewind(mnttab_file);
5882 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
5883 if (entry.mnt_major == major(statbuf.st_dev) &&
5884 entry.mnt_minor == minor(statbuf.st_dev))
5885 break;
5886 }
5887 if (ret != 0) {
5888 if (op == OP_SHARE) {
5889 (void) fprintf(stderr, gettext("cannot %s '%s': not "
5890 "currently mounted\n"), cmdname, path);
5891 return (1);
5892 }
9a616b5d 5893 (void) fprintf(stderr, gettext("warning: %s not in mtab\n"),
34dc7c2f
BB		 5894 path);
5895 if ((ret = umount2(path, flags)) != 0)
5896 (void) fprintf(stderr, gettext("%s: %s\n"), path,
5897 strerror(errno));
5898 return (ret != 0);
5899 }
5900
5901 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
5902 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
5903 "filesystem\n"), cmdname, path);
5904 return (1);
5905 }
5906
5907 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
5908 ZFS_TYPE_FILESYSTEM)) == NULL)
5909 return (1);
5910
34dc7c2f 5911 ret = 1;
b128c09f
BB		 5912 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
5913 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5914 cmdname, path, strerror(errno));
5915 goto out;
5916 } else if (statbuf.st_ino != path_inode) {
5917 (void) fprintf(stderr, gettext("cannot "
5918 "%s '%s': not a mountpoint\n"), cmdname, path);
5919 goto out;
5920 }
5921
34dc7c2f
BB		 5922 if (op == OP_SHARE) {
5923 char nfs_mnt_prop[ZFS_MAXPROPLEN];
5924 char smbshare_prop[ZFS_MAXPROPLEN];
5925
5926 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
5927 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
5928 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
5929 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
5930
5931 if (strcmp(nfs_mnt_prop, "off") == 0 &&
5932 strcmp(smbshare_prop, "off") == 0) {
5933 (void) fprintf(stderr, gettext("cannot unshare "
5934 "'%s': legacy share\n"), path);
9a616b5d
BB		 5935 (void) fprintf(stderr, gettext("use exportfs(8) "
5936 "or smbcontrol(1) to unshare this filesystem\n"));
34dc7c2f
BB		 5937 } else if (!zfs_is_shared(zhp)) {
5938 (void) fprintf(stderr, gettext("cannot unshare '%s': "
5939 "not currently shared\n"), path);
5940 } else {
5941 ret = zfs_unshareall_bypath(zhp, path);
5942 }
5943 } else {
5944 char mtpt_prop[ZFS_MAXPROPLEN];
5945
5946 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
5947 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
5948
b128c09f 5949 if (is_manual) {
34dc7c2f
BB		 5950 ret = zfs_unmount(zhp, NULL, flags);
5951 } else if (strcmp(mtpt_prop, "legacy") == 0) {
5952 (void) fprintf(stderr, gettext("cannot unmount "
5953 "'%s': legacy mountpoint\n"),
5954 zfs_get_name(zhp));
9a616b5d 5955 (void) fprintf(stderr, gettext("use umount(8) "
34dc7c2f
BB		 5956 "to unmount this filesystem\n"));
5957 } else {
5958 ret = zfs_unmountall(zhp, flags);
5959 }
5960 }
5961
b128c09f 5962out:
34dc7c2f
BB		 5963 zfs_close(zhp);
5964
5965 return (ret != 0);
5966}
5967
5968/*
5969 * Generic callback for unsharing or unmounting a filesystem.
5970 */
5971static int
5972unshare_unmount(int op, int argc, char **argv)
5973{
5974 int do_all = 0;
5975 int flags = 0;
5976 int ret = 0;
572e2857 5977 int c;
34dc7c2f 5978 zfs_handle_t *zhp;
428870ff 5979 char nfs_mnt_prop[ZFS_MAXPROPLEN];
34dc7c2f
BB		 5980 char sharesmb[ZFS_MAXPROPLEN];
5981
5982 /* check options */
5983 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
5984 switch (c) {
5985 case 'a':
5986 do_all = 1;
5987 break;
5988 case 'f':
5989 flags = MS_FORCE;
5990 break;
5991 case '?':
5992 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5993 optopt);
5994 usage(B_FALSE);
5995 }
5996 }
5997
5998 argc -= optind;
5999 argv += optind;
6000
6001 if (do_all) {
6002 /*
6003 * We could make use of zfs_for_each() to walk all datasets in
6004 * the system, but this would be very inefficient, especially
9a616b5d
BB		 6005 * since we would have to linearly search /etc/mtab for each
6006 * one. Instead, do one pass through /etc/mtab looking for
34dc7c2f
BB		 6007 * zfs entries and call zfs_unmount() for each one.
6008 *
6009 * Things get a little tricky if the administrator has created
6010 * mountpoints beneath other ZFS filesystems. In this case, we
6011 * have to unmount the deepest filesystems first. To accomplish
6012 * this, we place all the mountpoints in an AVL tree sorted by
6013 * the special type (dataset name), and walk the result in
6014 * reverse to make sure to get any snapshots first.
6015 */
6016 struct mnttab entry;
6017 uu_avl_pool_t *pool;
149e873a 6018 uu_avl_t *tree = NULL;
34dc7c2f
BB		 6019 unshare_unmount_node_t *node;
6020 uu_avl_index_t idx;
6021 uu_avl_walk_t *walk;
6022
6023 if (argc != 0) {
6024 (void) fprintf(stderr, gettext("too many arguments\n"));
6025 usage(B_FALSE);
6026 }
6027
428870ff 6028 if (((pool = uu_avl_pool_create("unmount_pool",
34dc7c2f
BB		 6029 sizeof (unshare_unmount_node_t),
6030 offsetof(unshare_unmount_node_t, un_avlnode),
428870ff
BB		 6031 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6032 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6033 nomem();
34dc7c2f
BB		 6034
6035 rewind(mnttab_file);
6036 while (getmntent(mnttab_file, &entry) == 0) {
6037
6038 /* ignore non-ZFS entries */
6039 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6040 continue;
6041
6042 /* ignore snapshots */
6043 if (strchr(entry.mnt_special, '@') != NULL)
6044 continue;
6045
6046 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6047 ZFS_TYPE_FILESYSTEM)) == NULL) {
6048 ret = 1;
6049 continue;
6050 }
6051
6052 switch (op) {
6053 case OP_SHARE:
6054 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
428870ff
BB		 6055 nfs_mnt_prop,
6056 sizeof (nfs_mnt_prop),
34dc7c2f 6057 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6058 if (strcmp(nfs_mnt_prop, "off") != 0)
34dc7c2f
BB		 6059 break;
6060 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
428870ff
BB		 6061 nfs_mnt_prop,
6062 sizeof (nfs_mnt_prop),
34dc7c2f 6063 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6064 if (strcmp(nfs_mnt_prop, "off") == 0)
34dc7c2f
BB		 6065 continue;
6066 break;
6067 case OP_MOUNT:
6068 /* Ignore legacy mounts */
6069 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
428870ff
BB		 6070 nfs_mnt_prop,
6071 sizeof (nfs_mnt_prop),
34dc7c2f 6072 NULL, NULL, 0, B_FALSE) == 0);
428870ff 6073 if (strcmp(nfs_mnt_prop, "legacy") == 0)
34dc7c2f
BB		 6074 continue;
6075 /* Ignore canmount=noauto mounts */
6076 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6077 ZFS_CANMOUNT_NOAUTO)
6078 continue;
6079 default:
6080 break;
6081 }
6082
6083 node = safe_malloc(sizeof (unshare_unmount_node_t));
6084 node->un_zhp = zhp;
428870ff 6085 node->un_mountp = safe_strdup(entry.mnt_mountp);
34dc7c2f
BB		 6086
6087 uu_avl_node_init(node, &node->un_avlnode, pool);
6088
6089 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6090 uu_avl_insert(tree, node, idx);
6091 } else {
6092 zfs_close(node->un_zhp);
6093 free(node->un_mountp);
6094 free(node);
6095 }
6096 }
6097
6098 /*
6099 * Walk the AVL tree in reverse, unmounting each filesystem and
6100 * removing it from the AVL tree in the process.
6101 */
6102 if ((walk = uu_avl_walk_start(tree,
428870ff
BB		 6103 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6104 nomem();
34dc7c2f
BB		 6105
6106 while ((node = uu_avl_walk_next(walk)) != NULL) {
6107 uu_avl_remove(tree, node);
6108
6109 switch (op) {
6110 case OP_SHARE:
6111 if (zfs_unshareall_bypath(node->un_zhp,
6112 node->un_mountp) != 0)
6113 ret = 1;
6114 break;
6115
6116 case OP_MOUNT:
6117 if (zfs_unmount(node->un_zhp,
6118 node->un_mountp, flags) != 0)
6119 ret = 1;
6120 break;
6121 }
6122
6123 zfs_close(node->un_zhp);
6124 free(node->un_mountp);
6125 free(node);
6126 }
6127
6128 uu_avl_walk_end(walk);
6129 uu_avl_destroy(tree);
6130 uu_avl_pool_destroy(pool);
6131
34dc7c2f
BB		 6132 } else {
6133 if (argc != 1) {
6134 if (argc == 0)
6135 (void) fprintf(stderr,
6136 gettext("missing filesystem argument\n"));
6137 else
6138 (void) fprintf(stderr,
6139 gettext("too many arguments\n"));
6140 usage(B_FALSE);
6141 }
6142
6143 /*
6144 * We have an argument, but it may be a full path or a ZFS
6145 * filesystem. Pass full paths off to unmount_path() (shared by
6146 * manual_unmount), otherwise open the filesystem and pass to
6147 * zfs_unmount().
6148 */
6149 if (argv[0][0] == '/')
6150 return (unshare_unmount_path(op, argv[0],
6151 flags, B_FALSE));
6152
572e2857
BB		 6153 if ((zhp = zfs_open(g_zfs, argv[0],
6154 ZFS_TYPE_FILESYSTEM)) == NULL)
34dc7c2f
BB		 6155 return (1);
6156
572e2857
BB		 6157 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6158 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6159 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6160 NULL, 0, B_FALSE) == 0);
34dc7c2f 6161
572e2857
BB		 6162 switch (op) {
6163 case OP_SHARE:
6164 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6165 nfs_mnt_prop,
6166 sizeof (nfs_mnt_prop),
6167 NULL, NULL, 0, B_FALSE) == 0);
6168 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6169 sharesmb, sizeof (sharesmb), NULL, NULL,
6170 0, B_FALSE) == 0);
6171
6172 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6173 strcmp(sharesmb, "off") == 0) {
6174 (void) fprintf(stderr, gettext("cannot "
6175 "unshare '%s': legacy share\n"),
6176 zfs_get_name(zhp));
6177 (void) fprintf(stderr, gettext("use "
6178 "unshare(1M) to unshare this "
6179 "filesystem\n"));
6180 ret = 1;
6181 } else if (!zfs_is_shared(zhp)) {
6182 (void) fprintf(stderr, gettext("cannot "
6183 "unshare '%s': not currently "
6184 "shared\n"), zfs_get_name(zhp));
6185 ret = 1;
6186 } else if (zfs_unshareall(zhp) != 0) {
6187 ret = 1;
6188 }
6189 break;
34dc7c2f 6190
572e2857
BB		 6191 case OP_MOUNT:
6192 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6193 (void) fprintf(stderr, gettext("cannot "
6194 "unmount '%s': legacy "
6195 "mountpoint\n"), zfs_get_name(zhp));
6196 (void) fprintf(stderr, gettext("use "
6197 "umount(1M) to unmount this "
6198 "filesystem\n"));
6199 ret = 1;
6200 } else if (!zfs_is_mounted(zhp, NULL)) {
6201 (void) fprintf(stderr, gettext("cannot "
6202 "unmount '%s': not currently "
6203 "mounted\n"),
6204 zfs_get_name(zhp));
6205 ret = 1;
6206 } else if (zfs_unmountall(zhp, flags) != 0) {
6207 ret = 1;
34dc7c2f 6208 }
572e2857 6209 break;
34dc7c2f
BB		 6210 }
6211
6212 zfs_close(zhp);
6213 }
6214
6215 return (ret);
6216}
6217
6218/*
6219 * zfs unmount -a
6220 * zfs unmount filesystem
6221 *
6222 * Unmount all filesystems, or a specific ZFS filesystem.
6223 */
6224static int
6225zfs_do_unmount(int argc, char **argv)
6226{
6227 return (unshare_unmount(OP_MOUNT, argc, argv));
6228}
6229
6230/*
6231 * zfs unshare -a
6232 * zfs unshare filesystem
6233 *
6234 * Unshare all filesystems, or a specific ZFS filesystem.
6235 */
6236static int
6237zfs_do_unshare(int argc, char **argv)
6238{
6239 return (unshare_unmount(OP_SHARE, argc, argv));
6240}
6241
34dc7c2f
BB		 6242static int
6243find_command_idx(char *command, int *idx)
6244{
6245 int i;
6246
6247 for (i = 0; i < NCOMMAND; i++) {
6248 if (command_table[i].name == NULL)
6249 continue;
6250
6251 if (strcmp(command, command_table[i].name) == 0) {
6252 *idx = i;
6253 return (0);
6254 }
6255 }
6256 return (1);
6257}
6258
572e2857
BB		 6259static int
6260zfs_do_diff(int argc, char **argv)
6261{
6262 zfs_handle_t *zhp;
6263 int flags = 0;
6264 char *tosnap = NULL;
6265 char *fromsnap = NULL;
6266 char *atp, *copy;
ad60af8e 6267 int err = 0;
572e2857
BB		 6268 int c;
6269
6270 while ((c = getopt(argc, argv, "FHt")) != -1) {
6271 switch (c) {
6272 case 'F':
6273 flags |= ZFS_DIFF_CLASSIFY;
6274 break;
6275 case 'H':
6276 flags |= ZFS_DIFF_PARSEABLE;
6277 break;
6278 case 't':
6279 flags |= ZFS_DIFF_TIMESTAMP;
6280 break;
6281 default:
6282 (void) fprintf(stderr,
6283 gettext("invalid option '%c'\n"), optopt);
6284 usage(B_FALSE);
6285 }
6286 }
6287
6288 argc -= optind;
6289 argv += optind;
6290
6291 if (argc < 1) {
6292 (void) fprintf(stderr,
6293 gettext("must provide at least one snapshot name\n"));
6294 usage(B_FALSE);
6295 }
6296
6297 if (argc > 2) {
6298 (void) fprintf(stderr, gettext("too many arguments\n"));
6299 usage(B_FALSE);
6300 }
6301
6302 fromsnap = argv[0];
6303 tosnap = (argc == 2) ? argv[1] : NULL;
6304
6305 copy = NULL;
6306 if (*fromsnap != '@')
6307 copy = strdup(fromsnap);
6308 else if (tosnap)
6309 copy = strdup(tosnap);
6310 if (copy == NULL)
6311 usage(B_FALSE);
6312
c65aa5b2 6313 if ((atp = strchr(copy, '@')))
572e2857
BB		 6314 *atp = '\0';
6315
6316 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6317 return (1);
6318
6319 free(copy);
6320
6321 /*
6322 * Ignore SIGPIPE so that the library can give us
6323 * information on any failure
6324 */
6325 (void) sigignore(SIGPIPE);
6326
6327 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6328
6329 zfs_close(zhp);
6330
6331 return (err != 0);
6332}
6333
34dc7c2f
BB		 6334int
6335main(int argc, char **argv)
6336{
ad60af8e 6337 int ret = 0;
d4ed6673 6338 int i = 0;
34dc7c2f
BB		 6339 char *cmdname;
6340
6341 (void) setlocale(LC_ALL, "");
6342 (void) textdomain(TEXT_DOMAIN);
6343
6344 opterr = 0;
6345
34dc7c2f
BB		 6346 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) {
6347 (void) fprintf(stderr, gettext("internal error: unable to "
6348 "open %s\n"), MNTTAB);
6349 return (1);
6350 }
6351
6352 /*
d53368f6 6353 * Make sure the user has specified some command.
34dc7c2f 6354 */
d53368f6
BB		 6355 if (argc < 2) {
6356 (void) fprintf(stderr, gettext("missing command\n"));
6357 usage(B_FALSE);
6358 }
34dc7c2f 6359
d53368f6 6360 cmdname = argv[1];
34dc7c2f 6361
d53368f6
BB		 6362 /*
6363 * The 'umount' command is an alias for 'unmount'
6364 */
6365 if (strcmp(cmdname, "umount") == 0)
6366 cmdname = "unmount";
34dc7c2f 6367
d53368f6
BB		 6368 /*
6369 * The 'recv' command is an alias for 'receive'
6370 */
6371 if (strcmp(cmdname, "recv") == 0)
6372 cmdname = "receive";
34dc7c2f 6373
10b75496
S		 6374 /*
6375 * The 'snap' command is an alias for 'snapshot'
6376 */
6377 if (strcmp(cmdname, "snap") == 0)
6378 cmdname = "snapshot";
6379
d53368f6
BB		 6380 /*
6381 * Special case '-?'
6382 */
6383 if ((strcmp(cmdname, "-?") == 0) ||
6384 (strcmp(cmdname, "--help") == 0))
6385 usage(B_TRUE);
34dc7c2f 6386
d53368f6
BB		 6387 if ((g_zfs = libzfs_init()) == NULL)
6388 return (1);
9b020fd9 6389
d53368f6
BB		 6390 zpool_set_history_str("zfs", argc, argv, history_str);
6391 verify(zpool_stage_history(g_zfs, history_str) == 0);
9b020fd9 6392
d53368f6 6393 libzfs_print_on_error(g_zfs, B_TRUE);
9b020fd9 6394
d53368f6
BB		 6395 /*
6396 * Run the appropriate command.
6397 */
b740d602 6398 libzfs_mnttab_cache(g_zfs, B_FALSE);
d53368f6
BB		 6399 if (find_command_idx(cmdname, &i) == 0) {
6400 current_command = &command_table[i];
6401 ret = command_table[i].func(argc - 1, argv + 1);
6402 } else if (strchr(cmdname, '=') != NULL) {
6403 verify(find_command_idx("set", &i) == 0);
6404 current_command = &command_table[i];
6405 ret = command_table[i].func(argc, argv);
6406 } else {
6407 (void) fprintf(stderr, gettext("unrecognized "
6408 "command '%s'\n"), cmdname);
6409 usage(B_FALSE);
6410 ret = 1;
34dc7c2f 6411 }
d53368f6 6412 libzfs_fini(g_zfs);
34dc7c2f
BB		 6413
6414 (void) fclose(mnttab_file);
6415
34dc7c2f
BB		 6416 /*
6417 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
6418 * for the purposes of running ::findleaks.
6419 */
6420 if (getenv("ZFS_ABORT") != NULL) {
6421 (void) printf("dumping core by request\n");
6422 abort();
6423 }
6424
6425 return (ret);
6426}
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