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3740 Poor ZFS send / receive performance due to snapshot hold / release processing
Submitted by: Steven Hartland <steven.hartland@multiplay.co.uk>
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--- old/usr/src/cmd/zfs/zfs_main.c
+++ new/usr/src/cmd/zfs/zfs_main.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
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17 lines elided |
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18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 * Copyright 2012 Nexenta Systems, Inc. All rights reserved.
25 25 * Copyright (c) 2012 by Delphix. All rights reserved.
26 26 * Copyright 2012 Milan Jurik. All rights reserved.
27 27 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
28 + * Copyright (c) 2013 Steven Hartland. All rights reserved.
28 29 */
29 30
30 31 #include <assert.h>
31 32 #include <ctype.h>
32 33 #include <errno.h>
33 34 #include <libgen.h>
34 35 #include <libintl.h>
35 36 #include <libuutil.h>
36 37 #include <libnvpair.h>
37 38 #include <locale.h>
38 39 #include <stddef.h>
39 40 #include <stdio.h>
40 41 #include <stdlib.h>
41 42 #include <strings.h>
42 43 #include <unistd.h>
43 44 #include <fcntl.h>
44 45 #include <zone.h>
45 46 #include <grp.h>
46 47 #include <pwd.h>
47 48 #include <signal.h>
48 49 #include <sys/list.h>
49 50 #include <sys/mkdev.h>
50 51 #include <sys/mntent.h>
51 52 #include <sys/mnttab.h>
52 53 #include <sys/mount.h>
53 54 #include <sys/stat.h>
54 55 #include <sys/fs/zfs.h>
55 56 #include <sys/types.h>
56 57 #include <time.h>
57 58
58 59 #include <libzfs.h>
59 60 #include <libzfs_core.h>
60 61 #include <zfs_prop.h>
61 62 #include <zfs_deleg.h>
62 63 #include <libuutil.h>
63 64 #include <aclutils.h>
64 65 #include <directory.h>
65 66
66 67 #include "zfs_iter.h"
67 68 #include "zfs_util.h"
68 69 #include "zfs_comutil.h"
69 70
70 71 libzfs_handle_t *g_zfs;
71 72
72 73 static FILE *mnttab_file;
73 74 static char history_str[HIS_MAX_RECORD_LEN];
74 75 static boolean_t log_history = B_TRUE;
75 76
76 77 static int zfs_do_clone(int argc, char **argv);
77 78 static int zfs_do_create(int argc, char **argv);
78 79 static int zfs_do_destroy(int argc, char **argv);
79 80 static int zfs_do_get(int argc, char **argv);
80 81 static int zfs_do_inherit(int argc, char **argv);
81 82 static int zfs_do_list(int argc, char **argv);
82 83 static int zfs_do_mount(int argc, char **argv);
83 84 static int zfs_do_rename(int argc, char **argv);
84 85 static int zfs_do_rollback(int argc, char **argv);
85 86 static int zfs_do_set(int argc, char **argv);
86 87 static int zfs_do_upgrade(int argc, char **argv);
87 88 static int zfs_do_snapshot(int argc, char **argv);
88 89 static int zfs_do_unmount(int argc, char **argv);
89 90 static int zfs_do_share(int argc, char **argv);
90 91 static int zfs_do_unshare(int argc, char **argv);
91 92 static int zfs_do_send(int argc, char **argv);
92 93 static int zfs_do_receive(int argc, char **argv);
93 94 static int zfs_do_promote(int argc, char **argv);
94 95 static int zfs_do_userspace(int argc, char **argv);
95 96 static int zfs_do_allow(int argc, char **argv);
96 97 static int zfs_do_unallow(int argc, char **argv);
97 98 static int zfs_do_hold(int argc, char **argv);
98 99 static int zfs_do_holds(int argc, char **argv);
99 100 static int zfs_do_release(int argc, char **argv);
100 101 static int zfs_do_diff(int argc, char **argv);
101 102
102 103 /*
103 104 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds.
104 105 */
105 106
106 107 #ifdef DEBUG
107 108 const char *
108 109 _umem_debug_init(void)
109 110 {
110 111 return ("default,verbose"); /* $UMEM_DEBUG setting */
111 112 }
112 113
113 114 const char *
114 115 _umem_logging_init(void)
115 116 {
116 117 return ("fail,contents"); /* $UMEM_LOGGING setting */
117 118 }
118 119 #endif
119 120
120 121 typedef enum {
121 122 HELP_CLONE,
122 123 HELP_CREATE,
123 124 HELP_DESTROY,
124 125 HELP_GET,
125 126 HELP_INHERIT,
126 127 HELP_UPGRADE,
127 128 HELP_LIST,
128 129 HELP_MOUNT,
129 130 HELP_PROMOTE,
130 131 HELP_RECEIVE,
131 132 HELP_RENAME,
132 133 HELP_ROLLBACK,
133 134 HELP_SEND,
134 135 HELP_SET,
135 136 HELP_SHARE,
136 137 HELP_SNAPSHOT,
137 138 HELP_UNMOUNT,
138 139 HELP_UNSHARE,
139 140 HELP_ALLOW,
140 141 HELP_UNALLOW,
141 142 HELP_USERSPACE,
142 143 HELP_GROUPSPACE,
143 144 HELP_HOLD,
144 145 HELP_HOLDS,
145 146 HELP_RELEASE,
146 147 HELP_DIFF,
147 148 } zfs_help_t;
148 149
149 150 typedef struct zfs_command {
150 151 const char *name;
151 152 int (*func)(int argc, char **argv);
152 153 zfs_help_t usage;
153 154 } zfs_command_t;
154 155
155 156 /*
156 157 * Master command table. Each ZFS command has a name, associated function, and
157 158 * usage message. The usage messages need to be internationalized, so we have
158 159 * to have a function to return the usage message based on a command index.
159 160 *
160 161 * These commands are organized according to how they are displayed in the usage
161 162 * message. An empty command (one with a NULL name) indicates an empty line in
162 163 * the generic usage message.
163 164 */
164 165 static zfs_command_t command_table[] = {
165 166 { "create", zfs_do_create, HELP_CREATE },
166 167 { "destroy", zfs_do_destroy, HELP_DESTROY },
167 168 { NULL },
168 169 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT },
169 170 { "rollback", zfs_do_rollback, HELP_ROLLBACK },
170 171 { "clone", zfs_do_clone, HELP_CLONE },
171 172 { "promote", zfs_do_promote, HELP_PROMOTE },
172 173 { "rename", zfs_do_rename, HELP_RENAME },
173 174 { NULL },
174 175 { "list", zfs_do_list, HELP_LIST },
175 176 { NULL },
176 177 { "set", zfs_do_set, HELP_SET },
177 178 { "get", zfs_do_get, HELP_GET },
178 179 { "inherit", zfs_do_inherit, HELP_INHERIT },
179 180 { "upgrade", zfs_do_upgrade, HELP_UPGRADE },
180 181 { "userspace", zfs_do_userspace, HELP_USERSPACE },
181 182 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE },
182 183 { NULL },
183 184 { "mount", zfs_do_mount, HELP_MOUNT },
184 185 { "unmount", zfs_do_unmount, HELP_UNMOUNT },
185 186 { "share", zfs_do_share, HELP_SHARE },
186 187 { "unshare", zfs_do_unshare, HELP_UNSHARE },
187 188 { NULL },
188 189 { "send", zfs_do_send, HELP_SEND },
189 190 { "receive", zfs_do_receive, HELP_RECEIVE },
190 191 { NULL },
191 192 { "allow", zfs_do_allow, HELP_ALLOW },
192 193 { NULL },
193 194 { "unallow", zfs_do_unallow, HELP_UNALLOW },
194 195 { NULL },
195 196 { "hold", zfs_do_hold, HELP_HOLD },
196 197 { "holds", zfs_do_holds, HELP_HOLDS },
197 198 { "release", zfs_do_release, HELP_RELEASE },
198 199 { "diff", zfs_do_diff, HELP_DIFF },
199 200 };
200 201
201 202 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
202 203
203 204 zfs_command_t *current_command;
204 205
205 206 static const char *
206 207 get_usage(zfs_help_t idx)
207 208 {
208 209 switch (idx) {
209 210 case HELP_CLONE:
210 211 return (gettext("\tclone [-p] [-o property=value] ... "
211 212 "<snapshot> <filesystem|volume>\n"));
212 213 case HELP_CREATE:
213 214 return (gettext("\tcreate [-p] [-o property=value] ... "
214 215 "<filesystem>\n"
215 216 "\tcreate [-ps] [-b blocksize] [-o property=value] ... "
216 217 "-V <size> <volume>\n"));
217 218 case HELP_DESTROY:
218 219 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n"
219 220 "\tdestroy [-dnpRrv] "
220 221 "<filesystem|volume>@<snap>[%<snap>][,...]\n"));
221 222 case HELP_GET:
222 223 return (gettext("\tget [-rHp] [-d max] "
223 224 "[-o \"all\" | field[,...]] [-t type[,...]] "
224 225 "[-s source[,...]]\n"
225 226 "\t <\"all\" | property[,...]> "
226 227 "[filesystem|volume|snapshot] ...\n"));
227 228 case HELP_INHERIT:
228 229 return (gettext("\tinherit [-rS] <property> "
229 230 "<filesystem|volume|snapshot> ...\n"));
230 231 case HELP_UPGRADE:
231 232 return (gettext("\tupgrade [-v]\n"
232 233 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n"));
233 234 case HELP_LIST:
234 235 return (gettext("\tlist [-rH][-d max] "
235 236 "[-o property[,...]] [-t type[,...]] [-s property] ...\n"
236 237 "\t [-S property] ... "
237 238 "[filesystem|volume|snapshot] ...\n"));
238 239 case HELP_MOUNT:
239 240 return (gettext("\tmount\n"
240 241 "\tmount [-vO] [-o opts] <-a | filesystem>\n"));
241 242 case HELP_PROMOTE:
242 243 return (gettext("\tpromote <clone-filesystem>\n"));
243 244 case HELP_RECEIVE:
244 245 return (gettext("\treceive [-vnFu] <filesystem|volume|"
245 246 "snapshot>\n"
246 247 "\treceive [-vnFu] [-d | -e] <filesystem>\n"));
247 248 case HELP_RENAME:
248 249 return (gettext("\trename [-f] <filesystem|volume|snapshot> "
249 250 "<filesystem|volume|snapshot>\n"
250 251 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n"
251 252 "\trename -r <snapshot> <snapshot>"));
252 253 case HELP_ROLLBACK:
253 254 return (gettext("\trollback [-rRf] <snapshot>\n"));
254 255 case HELP_SEND:
255 256 return (gettext("\tsend [-DnPpRv] [-[iI] snapshot] "
256 257 "<snapshot>\n"));
257 258 case HELP_SET:
258 259 return (gettext("\tset <property=value> "
259 260 "<filesystem|volume|snapshot> ...\n"));
260 261 case HELP_SHARE:
261 262 return (gettext("\tshare <-a | filesystem>\n"));
262 263 case HELP_SNAPSHOT:
263 264 return (gettext("\tsnapshot [-r] [-o property=value] ... "
264 265 "<filesystem@snapname|volume@snapname> ...\n"));
265 266 case HELP_UNMOUNT:
266 267 return (gettext("\tunmount [-f] "
267 268 "<-a | filesystem|mountpoint>\n"));
268 269 case HELP_UNSHARE:
269 270 return (gettext("\tunshare "
270 271 "<-a | filesystem|mountpoint>\n"));
271 272 case HELP_ALLOW:
272 273 return (gettext("\tallow <filesystem|volume>\n"
273 274 "\tallow [-ldug] "
274 275 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n"
275 276 "\t <filesystem|volume>\n"
276 277 "\tallow [-ld] -e <perm|@setname>[,...] "
277 278 "<filesystem|volume>\n"
278 279 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n"
279 280 "\tallow -s @setname <perm|@setname>[,...] "
280 281 "<filesystem|volume>\n"));
281 282 case HELP_UNALLOW:
282 283 return (gettext("\tunallow [-rldug] "
283 284 "<\"everyone\"|user|group>[,...]\n"
284 285 "\t [<perm|@setname>[,...]] <filesystem|volume>\n"
285 286 "\tunallow [-rld] -e [<perm|@setname>[,...]] "
286 287 "<filesystem|volume>\n"
287 288 "\tunallow [-r] -c [<perm|@setname>[,...]] "
288 289 "<filesystem|volume>\n"
289 290 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] "
290 291 "<filesystem|volume>\n"));
291 292 case HELP_USERSPACE:
292 293 return (gettext("\tuserspace [-Hinp] [-o field[,...]] "
293 294 "[-s field] ...\n\t[-S field] ... "
294 295 "[-t type[,...]] <filesystem|snapshot>\n"));
295 296 case HELP_GROUPSPACE:
296 297 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] "
297 298 "[-s field] ...\n\t[-S field] ... "
298 299 "[-t type[,...]] <filesystem|snapshot>\n"));
299 300 case HELP_HOLD:
300 301 return (gettext("\thold [-r] <tag> <snapshot> ...\n"));
301 302 case HELP_HOLDS:
302 303 return (gettext("\tholds [-r] <snapshot> ...\n"));
303 304 case HELP_RELEASE:
304 305 return (gettext("\trelease [-r] <tag> <snapshot> ...\n"));
305 306 case HELP_DIFF:
306 307 return (gettext("\tdiff [-FHt] <snapshot> "
307 308 "[snapshot|filesystem]\n"));
308 309 }
309 310
310 311 abort();
311 312 /* NOTREACHED */
312 313 }
313 314
314 315 void
315 316 nomem(void)
316 317 {
317 318 (void) fprintf(stderr, gettext("internal error: out of memory\n"));
318 319 exit(1);
319 320 }
320 321
321 322 /*
322 323 * Utility function to guarantee malloc() success.
323 324 */
324 325
325 326 void *
326 327 safe_malloc(size_t size)
327 328 {
328 329 void *data;
329 330
330 331 if ((data = calloc(1, size)) == NULL)
331 332 nomem();
332 333
333 334 return (data);
334 335 }
335 336
336 337 static char *
337 338 safe_strdup(char *str)
338 339 {
339 340 char *dupstr = strdup(str);
340 341
341 342 if (dupstr == NULL)
342 343 nomem();
343 344
344 345 return (dupstr);
345 346 }
346 347
347 348 /*
348 349 * Callback routine that will print out information for each of
349 350 * the properties.
350 351 */
351 352 static int
352 353 usage_prop_cb(int prop, void *cb)
353 354 {
354 355 FILE *fp = cb;
355 356
356 357 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop));
357 358
358 359 if (zfs_prop_readonly(prop))
359 360 (void) fprintf(fp, " NO ");
360 361 else
361 362 (void) fprintf(fp, "YES ");
362 363
363 364 if (zfs_prop_inheritable(prop))
364 365 (void) fprintf(fp, " YES ");
365 366 else
366 367 (void) fprintf(fp, " NO ");
367 368
368 369 if (zfs_prop_values(prop) == NULL)
369 370 (void) fprintf(fp, "-\n");
370 371 else
371 372 (void) fprintf(fp, "%s\n", zfs_prop_values(prop));
372 373
373 374 return (ZPROP_CONT);
374 375 }
375 376
376 377 /*
377 378 * Display usage message. If we're inside a command, display only the usage for
378 379 * that command. Otherwise, iterate over the entire command table and display
379 380 * a complete usage message.
380 381 */
381 382 static void
382 383 usage(boolean_t requested)
383 384 {
384 385 int i;
385 386 boolean_t show_properties = B_FALSE;
386 387 FILE *fp = requested ? stdout : stderr;
387 388
388 389 if (current_command == NULL) {
389 390
390 391 (void) fprintf(fp, gettext("usage: zfs command args ...\n"));
391 392 (void) fprintf(fp,
392 393 gettext("where 'command' is one of the following:\n\n"));
393 394
394 395 for (i = 0; i < NCOMMAND; i++) {
395 396 if (command_table[i].name == NULL)
396 397 (void) fprintf(fp, "\n");
397 398 else
398 399 (void) fprintf(fp, "%s",
399 400 get_usage(command_table[i].usage));
400 401 }
401 402
402 403 (void) fprintf(fp, gettext("\nEach dataset is of the form: "
403 404 "pool/[dataset/]*dataset[@name]\n"));
404 405 } else {
405 406 (void) fprintf(fp, gettext("usage:\n"));
406 407 (void) fprintf(fp, "%s", get_usage(current_command->usage));
407 408 }
408 409
409 410 if (current_command != NULL &&
410 411 (strcmp(current_command->name, "set") == 0 ||
411 412 strcmp(current_command->name, "get") == 0 ||
412 413 strcmp(current_command->name, "inherit") == 0 ||
413 414 strcmp(current_command->name, "list") == 0))
414 415 show_properties = B_TRUE;
415 416
416 417 if (show_properties) {
417 418 (void) fprintf(fp,
418 419 gettext("\nThe following properties are supported:\n"));
419 420
420 421 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n",
421 422 "PROPERTY", "EDIT", "INHERIT", "VALUES");
422 423
423 424 /* Iterate over all properties */
424 425 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE,
425 426 ZFS_TYPE_DATASET);
426 427
427 428 (void) fprintf(fp, "\t%-15s ", "userused@...");
428 429 (void) fprintf(fp, " NO NO <size>\n");
429 430 (void) fprintf(fp, "\t%-15s ", "groupused@...");
430 431 (void) fprintf(fp, " NO NO <size>\n");
431 432 (void) fprintf(fp, "\t%-15s ", "userquota@...");
432 433 (void) fprintf(fp, "YES NO <size> | none\n");
433 434 (void) fprintf(fp, "\t%-15s ", "groupquota@...");
434 435 (void) fprintf(fp, "YES NO <size> | none\n");
435 436 (void) fprintf(fp, "\t%-15s ", "written@<snap>");
436 437 (void) fprintf(fp, " NO NO <size>\n");
437 438
438 439 (void) fprintf(fp, gettext("\nSizes are specified in bytes "
439 440 "with standard units such as K, M, G, etc.\n"));
440 441 (void) fprintf(fp, gettext("\nUser-defined properties can "
441 442 "be specified by using a name containing a colon (:).\n"));
442 443 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ "
443 444 "properties must be appended with\n"
444 445 "a user or group specifier of one of these forms:\n"
445 446 " POSIX name (eg: \"matt\")\n"
446 447 " POSIX id (eg: \"126829\")\n"
447 448 " SMB name@domain (eg: \"matt@sun\")\n"
448 449 " SMB SID (eg: \"S-1-234-567-89\")\n"));
449 450 } else {
450 451 (void) fprintf(fp,
451 452 gettext("\nFor the property list, run: %s\n"),
452 453 "zfs set|get");
453 454 (void) fprintf(fp,
454 455 gettext("\nFor the delegated permission list, run: %s\n"),
455 456 "zfs allow|unallow");
456 457 }
457 458
458 459 /*
459 460 * See comments at end of main().
460 461 */
461 462 if (getenv("ZFS_ABORT") != NULL) {
462 463 (void) printf("dumping core by request\n");
463 464 abort();
464 465 }
465 466
466 467 exit(requested ? 0 : 2);
467 468 }
468 469
469 470 static int
470 471 parseprop(nvlist_t *props)
471 472 {
472 473 char *propname = optarg;
473 474 char *propval, *strval;
474 475
475 476 if ((propval = strchr(propname, '=')) == NULL) {
476 477 (void) fprintf(stderr, gettext("missing "
477 478 "'=' for -o option\n"));
478 479 return (-1);
479 480 }
480 481 *propval = '\0';
481 482 propval++;
482 483 if (nvlist_lookup_string(props, propname, &strval) == 0) {
483 484 (void) fprintf(stderr, gettext("property '%s' "
484 485 "specified multiple times\n"), propname);
485 486 return (-1);
486 487 }
487 488 if (nvlist_add_string(props, propname, propval) != 0)
488 489 nomem();
489 490 return (0);
490 491 }
491 492
492 493 static int
493 494 parse_depth(char *opt, int *flags)
494 495 {
495 496 char *tmp;
496 497 int depth;
497 498
498 499 depth = (int)strtol(opt, &tmp, 0);
499 500 if (*tmp) {
500 501 (void) fprintf(stderr,
501 502 gettext("%s is not an integer\n"), optarg);
502 503 usage(B_FALSE);
503 504 }
504 505 if (depth < 0) {
505 506 (void) fprintf(stderr,
506 507 gettext("Depth can not be negative.\n"));
507 508 usage(B_FALSE);
508 509 }
509 510 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE);
510 511 return (depth);
511 512 }
512 513
513 514 #define PROGRESS_DELAY 2 /* seconds */
514 515
515 516 static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b";
516 517 static time_t pt_begin;
517 518 static char *pt_header = NULL;
518 519 static boolean_t pt_shown;
519 520
520 521 static void
521 522 start_progress_timer(void)
522 523 {
523 524 pt_begin = time(NULL) + PROGRESS_DELAY;
524 525 pt_shown = B_FALSE;
525 526 }
526 527
527 528 static void
528 529 set_progress_header(char *header)
529 530 {
530 531 assert(pt_header == NULL);
531 532 pt_header = safe_strdup(header);
532 533 if (pt_shown) {
533 534 (void) printf("%s: ", header);
534 535 (void) fflush(stdout);
535 536 }
536 537 }
537 538
538 539 static void
539 540 update_progress(char *update)
540 541 {
541 542 if (!pt_shown && time(NULL) > pt_begin) {
542 543 int len = strlen(update);
543 544
544 545 (void) printf("%s: %s%*.*s", pt_header, update, len, len,
545 546 pt_reverse);
546 547 (void) fflush(stdout);
547 548 pt_shown = B_TRUE;
548 549 } else if (pt_shown) {
549 550 int len = strlen(update);
550 551
551 552 (void) printf("%s%*.*s", update, len, len, pt_reverse);
552 553 (void) fflush(stdout);
553 554 }
554 555 }
555 556
556 557 static void
557 558 finish_progress(char *done)
558 559 {
559 560 if (pt_shown) {
560 561 (void) printf("%s\n", done);
561 562 (void) fflush(stdout);
562 563 }
563 564 free(pt_header);
564 565 pt_header = NULL;
565 566 }
566 567 /*
567 568 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol>
568 569 *
569 570 * Given an existing dataset, create a writable copy whose initial contents
570 571 * are the same as the source. The newly created dataset maintains a
571 572 * dependency on the original; the original cannot be destroyed so long as
572 573 * the clone exists.
573 574 *
574 575 * The '-p' flag creates all the non-existing ancestors of the target first.
575 576 */
576 577 static int
577 578 zfs_do_clone(int argc, char **argv)
578 579 {
579 580 zfs_handle_t *zhp = NULL;
580 581 boolean_t parents = B_FALSE;
581 582 nvlist_t *props;
582 583 int ret = 0;
583 584 int c;
584 585
585 586 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
586 587 nomem();
587 588
588 589 /* check options */
589 590 while ((c = getopt(argc, argv, "o:p")) != -1) {
590 591 switch (c) {
591 592 case 'o':
592 593 if (parseprop(props))
593 594 return (1);
594 595 break;
595 596 case 'p':
596 597 parents = B_TRUE;
597 598 break;
598 599 case '?':
599 600 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
600 601 optopt);
601 602 goto usage;
602 603 }
603 604 }
604 605
605 606 argc -= optind;
606 607 argv += optind;
607 608
608 609 /* check number of arguments */
609 610 if (argc < 1) {
610 611 (void) fprintf(stderr, gettext("missing source dataset "
611 612 "argument\n"));
612 613 goto usage;
613 614 }
614 615 if (argc < 2) {
615 616 (void) fprintf(stderr, gettext("missing target dataset "
616 617 "argument\n"));
617 618 goto usage;
618 619 }
619 620 if (argc > 2) {
620 621 (void) fprintf(stderr, gettext("too many arguments\n"));
621 622 goto usage;
622 623 }
623 624
624 625 /* open the source dataset */
625 626 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
626 627 return (1);
627 628
628 629 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
629 630 ZFS_TYPE_VOLUME)) {
630 631 /*
631 632 * Now create the ancestors of the target dataset. If the
632 633 * target already exists and '-p' option was used we should not
633 634 * complain.
634 635 */
635 636 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
636 637 ZFS_TYPE_VOLUME))
637 638 return (0);
638 639 if (zfs_create_ancestors(g_zfs, argv[1]) != 0)
639 640 return (1);
640 641 }
641 642
642 643 /* pass to libzfs */
643 644 ret = zfs_clone(zhp, argv[1], props);
644 645
645 646 /* create the mountpoint if necessary */
646 647 if (ret == 0) {
647 648 zfs_handle_t *clone;
648 649
649 650 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET);
650 651 if (clone != NULL) {
651 652 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME)
652 653 if ((ret = zfs_mount(clone, NULL, 0)) == 0)
653 654 ret = zfs_share(clone);
654 655 zfs_close(clone);
655 656 }
656 657 }
657 658
658 659 zfs_close(zhp);
659 660 nvlist_free(props);
660 661
661 662 return (!!ret);
662 663
663 664 usage:
664 665 if (zhp)
665 666 zfs_close(zhp);
666 667 nvlist_free(props);
667 668 usage(B_FALSE);
668 669 return (-1);
669 670 }
670 671
671 672 /*
672 673 * zfs create [-p] [-o prop=value] ... fs
673 674 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size
674 675 *
675 676 * Create a new dataset. This command can be used to create filesystems
676 677 * and volumes. Snapshot creation is handled by 'zfs snapshot'.
677 678 * For volumes, the user must specify a size to be used.
678 679 *
679 680 * The '-s' flag applies only to volumes, and indicates that we should not try
680 681 * to set the reservation for this volume. By default we set a reservation
681 682 * equal to the size for any volume. For pools with SPA_VERSION >=
682 683 * SPA_VERSION_REFRESERVATION, we set a refreservation instead.
683 684 *
684 685 * The '-p' flag creates all the non-existing ancestors of the target first.
685 686 */
686 687 static int
687 688 zfs_do_create(int argc, char **argv)
688 689 {
689 690 zfs_type_t type = ZFS_TYPE_FILESYSTEM;
690 691 zfs_handle_t *zhp = NULL;
691 692 uint64_t volsize;
692 693 int c;
693 694 boolean_t noreserve = B_FALSE;
694 695 boolean_t bflag = B_FALSE;
695 696 boolean_t parents = B_FALSE;
696 697 int ret = 1;
697 698 nvlist_t *props;
698 699 uint64_t intval;
699 700 int canmount = ZFS_CANMOUNT_OFF;
700 701
701 702 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
702 703 nomem();
703 704
704 705 /* check options */
705 706 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) {
706 707 switch (c) {
707 708 case 'V':
708 709 type = ZFS_TYPE_VOLUME;
709 710 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
710 711 (void) fprintf(stderr, gettext("bad volume "
711 712 "size '%s': %s\n"), optarg,
712 713 libzfs_error_description(g_zfs));
713 714 goto error;
714 715 }
715 716
716 717 if (nvlist_add_uint64(props,
717 718 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0)
718 719 nomem();
719 720 volsize = intval;
720 721 break;
721 722 case 'p':
722 723 parents = B_TRUE;
723 724 break;
724 725 case 'b':
725 726 bflag = B_TRUE;
726 727 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) {
727 728 (void) fprintf(stderr, gettext("bad volume "
728 729 "block size '%s': %s\n"), optarg,
729 730 libzfs_error_description(g_zfs));
730 731 goto error;
731 732 }
732 733
733 734 if (nvlist_add_uint64(props,
734 735 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
735 736 intval) != 0)
736 737 nomem();
737 738 break;
738 739 case 'o':
739 740 if (parseprop(props))
740 741 goto error;
741 742 break;
742 743 case 's':
743 744 noreserve = B_TRUE;
744 745 break;
745 746 case ':':
746 747 (void) fprintf(stderr, gettext("missing size "
747 748 "argument\n"));
748 749 goto badusage;
749 750 case '?':
750 751 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
751 752 optopt);
752 753 goto badusage;
753 754 }
754 755 }
755 756
756 757 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) {
757 758 (void) fprintf(stderr, gettext("'-s' and '-b' can only be "
758 759 "used when creating a volume\n"));
759 760 goto badusage;
760 761 }
761 762
762 763 argc -= optind;
763 764 argv += optind;
764 765
765 766 /* check number of arguments */
766 767 if (argc == 0) {
767 768 (void) fprintf(stderr, gettext("missing %s argument\n"),
768 769 zfs_type_to_name(type));
769 770 goto badusage;
770 771 }
771 772 if (argc > 1) {
772 773 (void) fprintf(stderr, gettext("too many arguments\n"));
773 774 goto badusage;
774 775 }
775 776
776 777 if (type == ZFS_TYPE_VOLUME && !noreserve) {
777 778 zpool_handle_t *zpool_handle;
778 779 nvlist_t *real_props;
779 780 uint64_t spa_version;
780 781 char *p;
781 782 zfs_prop_t resv_prop;
782 783 char *strval;
783 784 char msg[1024];
784 785
785 786 if (p = strchr(argv[0], '/'))
786 787 *p = '\0';
787 788 zpool_handle = zpool_open(g_zfs, argv[0]);
788 789 if (p != NULL)
789 790 *p = '/';
790 791 if (zpool_handle == NULL)
791 792 goto error;
792 793 spa_version = zpool_get_prop_int(zpool_handle,
793 794 ZPOOL_PROP_VERSION, NULL);
794 795 zpool_close(zpool_handle);
795 796 if (spa_version >= SPA_VERSION_REFRESERVATION)
796 797 resv_prop = ZFS_PROP_REFRESERVATION;
797 798 else
798 799 resv_prop = ZFS_PROP_RESERVATION;
799 800
800 801 (void) snprintf(msg, sizeof (msg),
801 802 gettext("cannot create '%s'"), argv[0]);
802 803 if (props && (real_props = zfs_valid_proplist(g_zfs, type,
803 804 props, 0, NULL, msg)) == NULL)
804 805 goto error;
805 806
806 807 volsize = zvol_volsize_to_reservation(volsize, real_props);
807 808 nvlist_free(real_props);
808 809
809 810 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop),
810 811 &strval) != 0) {
811 812 if (nvlist_add_uint64(props,
812 813 zfs_prop_to_name(resv_prop), volsize) != 0) {
813 814 nvlist_free(props);
814 815 nomem();
815 816 }
816 817 }
817 818 }
818 819
819 820 if (parents && zfs_name_valid(argv[0], type)) {
820 821 /*
821 822 * Now create the ancestors of target dataset. If the target
822 823 * already exists and '-p' option was used we should not
823 824 * complain.
824 825 */
825 826 if (zfs_dataset_exists(g_zfs, argv[0], type)) {
826 827 ret = 0;
827 828 goto error;
828 829 }
829 830 if (zfs_create_ancestors(g_zfs, argv[0]) != 0)
830 831 goto error;
831 832 }
832 833
833 834 /* pass to libzfs */
834 835 if (zfs_create(g_zfs, argv[0], type, props) != 0)
835 836 goto error;
836 837
837 838 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
838 839 goto error;
839 840
840 841 ret = 0;
841 842 /*
842 843 * if the user doesn't want the dataset automatically mounted,
843 844 * then skip the mount/share step
844 845 */
845 846 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type))
846 847 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
847 848
848 849 /*
849 850 * Mount and/or share the new filesystem as appropriate. We provide a
850 851 * verbose error message to let the user know that their filesystem was
851 852 * in fact created, even if we failed to mount or share it.
852 853 */
853 854 if (canmount == ZFS_CANMOUNT_ON) {
854 855 if (zfs_mount(zhp, NULL, 0) != 0) {
855 856 (void) fprintf(stderr, gettext("filesystem "
856 857 "successfully created, but not mounted\n"));
857 858 ret = 1;
858 859 } else if (zfs_share(zhp) != 0) {
859 860 (void) fprintf(stderr, gettext("filesystem "
860 861 "successfully created, but not shared\n"));
861 862 ret = 1;
862 863 }
863 864 }
864 865
865 866 error:
866 867 if (zhp)
867 868 zfs_close(zhp);
868 869 nvlist_free(props);
869 870 return (ret);
870 871 badusage:
871 872 nvlist_free(props);
872 873 usage(B_FALSE);
873 874 return (2);
874 875 }
875 876
876 877 /*
877 878 * zfs destroy [-rRf] <fs, vol>
878 879 * zfs destroy [-rRd] <snap>
879 880 *
880 881 * -r Recursively destroy all children
881 882 * -R Recursively destroy all dependents, including clones
882 883 * -f Force unmounting of any dependents
883 884 * -d If we can't destroy now, mark for deferred destruction
884 885 *
885 886 * Destroys the given dataset. By default, it will unmount any filesystems,
886 887 * and refuse to destroy a dataset that has any dependents. A dependent can
887 888 * either be a child, or a clone of a child.
888 889 */
889 890 typedef struct destroy_cbdata {
890 891 boolean_t cb_first;
891 892 boolean_t cb_force;
892 893 boolean_t cb_recurse;
893 894 boolean_t cb_error;
894 895 boolean_t cb_doclones;
895 896 zfs_handle_t *cb_target;
896 897 boolean_t cb_defer_destroy;
897 898 boolean_t cb_verbose;
898 899 boolean_t cb_parsable;
899 900 boolean_t cb_dryrun;
900 901 nvlist_t *cb_nvl;
901 902 nvlist_t *cb_batchedsnaps;
902 903
903 904 /* first snap in contiguous run */
904 905 char *cb_firstsnap;
905 906 /* previous snap in contiguous run */
906 907 char *cb_prevsnap;
907 908 int64_t cb_snapused;
908 909 char *cb_snapspec;
909 910 } destroy_cbdata_t;
910 911
911 912 /*
912 913 * Check for any dependents based on the '-r' or '-R' flags.
913 914 */
914 915 static int
915 916 destroy_check_dependent(zfs_handle_t *zhp, void *data)
916 917 {
917 918 destroy_cbdata_t *cbp = data;
918 919 const char *tname = zfs_get_name(cbp->cb_target);
919 920 const char *name = zfs_get_name(zhp);
920 921
921 922 if (strncmp(tname, name, strlen(tname)) == 0 &&
922 923 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) {
923 924 /*
924 925 * This is a direct descendant, not a clone somewhere else in
925 926 * the hierarchy.
926 927 */
927 928 if (cbp->cb_recurse)
928 929 goto out;
929 930
930 931 if (cbp->cb_first) {
931 932 (void) fprintf(stderr, gettext("cannot destroy '%s': "
932 933 "%s has children\n"),
933 934 zfs_get_name(cbp->cb_target),
934 935 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
935 936 (void) fprintf(stderr, gettext("use '-r' to destroy "
936 937 "the following datasets:\n"));
937 938 cbp->cb_first = B_FALSE;
938 939 cbp->cb_error = B_TRUE;
939 940 }
940 941
941 942 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
942 943 } else {
943 944 /*
944 945 * This is a clone. We only want to report this if the '-r'
945 946 * wasn't specified, or the target is a snapshot.
946 947 */
947 948 if (!cbp->cb_recurse &&
948 949 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT)
949 950 goto out;
950 951
951 952 if (cbp->cb_first) {
952 953 (void) fprintf(stderr, gettext("cannot destroy '%s': "
953 954 "%s has dependent clones\n"),
954 955 zfs_get_name(cbp->cb_target),
955 956 zfs_type_to_name(zfs_get_type(cbp->cb_target)));
956 957 (void) fprintf(stderr, gettext("use '-R' to destroy "
957 958 "the following datasets:\n"));
958 959 cbp->cb_first = B_FALSE;
959 960 cbp->cb_error = B_TRUE;
960 961 cbp->cb_dryrun = B_TRUE;
961 962 }
962 963
963 964 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
964 965 }
965 966
966 967 out:
967 968 zfs_close(zhp);
968 969 return (0);
969 970 }
970 971
971 972 static int
972 973 destroy_callback(zfs_handle_t *zhp, void *data)
973 974 {
974 975 destroy_cbdata_t *cb = data;
975 976 const char *name = zfs_get_name(zhp);
976 977
977 978 if (cb->cb_verbose) {
978 979 if (cb->cb_parsable) {
979 980 (void) printf("destroy\t%s\n", name);
980 981 } else if (cb->cb_dryrun) {
981 982 (void) printf(gettext("would destroy %s\n"),
982 983 name);
983 984 } else {
984 985 (void) printf(gettext("will destroy %s\n"),
985 986 name);
986 987 }
987 988 }
988 989
989 990 /*
990 991 * Ignore pools (which we've already flagged as an error before getting
991 992 * here).
992 993 */
993 994 if (strchr(zfs_get_name(zhp), '/') == NULL &&
994 995 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
995 996 zfs_close(zhp);
996 997 return (0);
997 998 }
998 999 if (cb->cb_dryrun) {
999 1000 zfs_close(zhp);
1000 1001 return (0);
1001 1002 }
1002 1003
1003 1004 /*
1004 1005 * We batch up all contiguous snapshots (even of different
1005 1006 * filesystems) and destroy them with one ioctl. We can't
1006 1007 * simply do all snap deletions and then all fs deletions,
1007 1008 * because we must delete a clone before its origin.
1008 1009 */
1009 1010 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) {
1010 1011 fnvlist_add_boolean(cb->cb_batchedsnaps, name);
1011 1012 } else {
1012 1013 int error = zfs_destroy_snaps_nvl(g_zfs,
1013 1014 cb->cb_batchedsnaps, B_FALSE);
1014 1015 fnvlist_free(cb->cb_batchedsnaps);
1015 1016 cb->cb_batchedsnaps = fnvlist_alloc();
1016 1017
1017 1018 if (error != 0 ||
1018 1019 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 ||
1019 1020 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) {
1020 1021 zfs_close(zhp);
1021 1022 return (-1);
1022 1023 }
1023 1024 }
1024 1025
1025 1026 zfs_close(zhp);
1026 1027 return (0);
1027 1028 }
1028 1029
1029 1030 static int
1030 1031 destroy_print_cb(zfs_handle_t *zhp, void *arg)
1031 1032 {
1032 1033 destroy_cbdata_t *cb = arg;
1033 1034 const char *name = zfs_get_name(zhp);
1034 1035 int err = 0;
1035 1036
1036 1037 if (nvlist_exists(cb->cb_nvl, name)) {
1037 1038 if (cb->cb_firstsnap == NULL)
1038 1039 cb->cb_firstsnap = strdup(name);
1039 1040 if (cb->cb_prevsnap != NULL)
1040 1041 free(cb->cb_prevsnap);
1041 1042 /* this snap continues the current range */
1042 1043 cb->cb_prevsnap = strdup(name);
1043 1044 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL)
1044 1045 nomem();
1045 1046 if (cb->cb_verbose) {
1046 1047 if (cb->cb_parsable) {
1047 1048 (void) printf("destroy\t%s\n", name);
1048 1049 } else if (cb->cb_dryrun) {
1049 1050 (void) printf(gettext("would destroy %s\n"),
1050 1051 name);
1051 1052 } else {
1052 1053 (void) printf(gettext("will destroy %s\n"),
1053 1054 name);
1054 1055 }
1055 1056 }
1056 1057 } else if (cb->cb_firstsnap != NULL) {
1057 1058 /* end of this range */
1058 1059 uint64_t used = 0;
1059 1060 err = lzc_snaprange_space(cb->cb_firstsnap,
1060 1061 cb->cb_prevsnap, &used);
1061 1062 cb->cb_snapused += used;
1062 1063 free(cb->cb_firstsnap);
1063 1064 cb->cb_firstsnap = NULL;
1064 1065 free(cb->cb_prevsnap);
1065 1066 cb->cb_prevsnap = NULL;
1066 1067 }
1067 1068 zfs_close(zhp);
1068 1069 return (err);
1069 1070 }
1070 1071
1071 1072 static int
1072 1073 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb)
1073 1074 {
1074 1075 int err = 0;
1075 1076 assert(cb->cb_firstsnap == NULL);
1076 1077 assert(cb->cb_prevsnap == NULL);
1077 1078 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb);
1078 1079 if (cb->cb_firstsnap != NULL) {
1079 1080 uint64_t used = 0;
1080 1081 if (err == 0) {
1081 1082 err = lzc_snaprange_space(cb->cb_firstsnap,
1082 1083 cb->cb_prevsnap, &used);
1083 1084 }
1084 1085 cb->cb_snapused += used;
1085 1086 free(cb->cb_firstsnap);
1086 1087 cb->cb_firstsnap = NULL;
1087 1088 free(cb->cb_prevsnap);
1088 1089 cb->cb_prevsnap = NULL;
1089 1090 }
1090 1091 return (err);
1091 1092 }
1092 1093
1093 1094 static int
1094 1095 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg)
1095 1096 {
1096 1097 destroy_cbdata_t *cb = arg;
1097 1098 int err = 0;
1098 1099
1099 1100 /* Check for clones. */
1100 1101 if (!cb->cb_doclones && !cb->cb_defer_destroy) {
1101 1102 cb->cb_target = zhp;
1102 1103 cb->cb_first = B_TRUE;
1103 1104 err = zfs_iter_dependents(zhp, B_TRUE,
1104 1105 destroy_check_dependent, cb);
1105 1106 }
1106 1107
1107 1108 if (err == 0) {
1108 1109 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp)))
1109 1110 nomem();
1110 1111 }
1111 1112 zfs_close(zhp);
1112 1113 return (err);
1113 1114 }
1114 1115
1115 1116 static int
1116 1117 gather_snapshots(zfs_handle_t *zhp, void *arg)
1117 1118 {
1118 1119 destroy_cbdata_t *cb = arg;
1119 1120 int err = 0;
1120 1121
1121 1122 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb);
1122 1123 if (err == ENOENT)
1123 1124 err = 0;
1124 1125 if (err != 0)
1125 1126 goto out;
1126 1127
1127 1128 if (cb->cb_verbose) {
1128 1129 err = destroy_print_snapshots(zhp, cb);
1129 1130 if (err != 0)
1130 1131 goto out;
1131 1132 }
1132 1133
1133 1134 if (cb->cb_recurse)
1134 1135 err = zfs_iter_filesystems(zhp, gather_snapshots, cb);
1135 1136
1136 1137 out:
1137 1138 zfs_close(zhp);
1138 1139 return (err);
1139 1140 }
1140 1141
1141 1142 static int
1142 1143 destroy_clones(destroy_cbdata_t *cb)
1143 1144 {
1144 1145 nvpair_t *pair;
1145 1146 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL);
1146 1147 pair != NULL;
1147 1148 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) {
1148 1149 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair),
1149 1150 ZFS_TYPE_SNAPSHOT);
1150 1151 if (zhp != NULL) {
1151 1152 boolean_t defer = cb->cb_defer_destroy;
1152 1153 int err = 0;
1153 1154
1154 1155 /*
1155 1156 * We can't defer destroy non-snapshots, so set it to
1156 1157 * false while destroying the clones.
1157 1158 */
1158 1159 cb->cb_defer_destroy = B_FALSE;
1159 1160 err = zfs_iter_dependents(zhp, B_FALSE,
1160 1161 destroy_callback, cb);
1161 1162 cb->cb_defer_destroy = defer;
1162 1163 zfs_close(zhp);
1163 1164 if (err != 0)
1164 1165 return (err);
1165 1166 }
1166 1167 }
1167 1168 return (0);
1168 1169 }
1169 1170
1170 1171 static int
1171 1172 zfs_do_destroy(int argc, char **argv)
1172 1173 {
1173 1174 destroy_cbdata_t cb = { 0 };
1174 1175 int rv = 0;
1175 1176 int err = 0;
1176 1177 int c;
1177 1178 zfs_handle_t *zhp = NULL;
1178 1179 char *at;
1179 1180 zfs_type_t type = ZFS_TYPE_DATASET;
1180 1181
1181 1182 /* check options */
1182 1183 while ((c = getopt(argc, argv, "vpndfrR")) != -1) {
1183 1184 switch (c) {
1184 1185 case 'v':
1185 1186 cb.cb_verbose = B_TRUE;
1186 1187 break;
1187 1188 case 'p':
1188 1189 cb.cb_verbose = B_TRUE;
1189 1190 cb.cb_parsable = B_TRUE;
1190 1191 break;
1191 1192 case 'n':
1192 1193 cb.cb_dryrun = B_TRUE;
1193 1194 break;
1194 1195 case 'd':
1195 1196 cb.cb_defer_destroy = B_TRUE;
1196 1197 type = ZFS_TYPE_SNAPSHOT;
1197 1198 break;
1198 1199 case 'f':
1199 1200 cb.cb_force = B_TRUE;
1200 1201 break;
1201 1202 case 'r':
1202 1203 cb.cb_recurse = B_TRUE;
1203 1204 break;
1204 1205 case 'R':
1205 1206 cb.cb_recurse = B_TRUE;
1206 1207 cb.cb_doclones = B_TRUE;
1207 1208 break;
1208 1209 case '?':
1209 1210 default:
1210 1211 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1211 1212 optopt);
1212 1213 usage(B_FALSE);
1213 1214 }
1214 1215 }
1215 1216
1216 1217 argc -= optind;
1217 1218 argv += optind;
1218 1219
1219 1220 /* check number of arguments */
1220 1221 if (argc == 0) {
1221 1222 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1222 1223 usage(B_FALSE);
1223 1224 }
1224 1225 if (argc > 1) {
1225 1226 (void) fprintf(stderr, gettext("too many arguments\n"));
1226 1227 usage(B_FALSE);
1227 1228 }
1228 1229
1229 1230 at = strchr(argv[0], '@');
1230 1231 if (at != NULL) {
1231 1232
1232 1233 /* Build the list of snaps to destroy in cb_nvl. */
1233 1234 cb.cb_nvl = fnvlist_alloc();
1234 1235
1235 1236 *at = '\0';
1236 1237 zhp = zfs_open(g_zfs, argv[0],
1237 1238 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
1238 1239 if (zhp == NULL)
1239 1240 return (1);
1240 1241
1241 1242 cb.cb_snapspec = at + 1;
1242 1243 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
1243 1244 cb.cb_error) {
1244 1245 rv = 1;
1245 1246 goto out;
1246 1247 }
1247 1248
1248 1249 if (nvlist_empty(cb.cb_nvl)) {
1249 1250 (void) fprintf(stderr, gettext("could not find any "
1250 1251 "snapshots to destroy; check snapshot names.\n"));
1251 1252 rv = 1;
1252 1253 goto out;
1253 1254 }
1254 1255
1255 1256 if (cb.cb_verbose) {
1256 1257 char buf[16];
1257 1258 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf));
1258 1259 if (cb.cb_parsable) {
1259 1260 (void) printf("reclaim\t%llu\n",
1260 1261 cb.cb_snapused);
1261 1262 } else if (cb.cb_dryrun) {
1262 1263 (void) printf(gettext("would reclaim %s\n"),
1263 1264 buf);
1264 1265 } else {
1265 1266 (void) printf(gettext("will reclaim %s\n"),
1266 1267 buf);
1267 1268 }
1268 1269 }
1269 1270
1270 1271 if (!cb.cb_dryrun) {
1271 1272 if (cb.cb_doclones) {
1272 1273 cb.cb_batchedsnaps = fnvlist_alloc();
1273 1274 err = destroy_clones(&cb);
1274 1275 if (err == 0) {
1275 1276 err = zfs_destroy_snaps_nvl(g_zfs,
1276 1277 cb.cb_batchedsnaps, B_FALSE);
1277 1278 }
1278 1279 if (err != 0) {
1279 1280 rv = 1;
1280 1281 goto out;
1281 1282 }
1282 1283 }
1283 1284 if (err == 0) {
1284 1285 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl,
1285 1286 cb.cb_defer_destroy);
1286 1287 }
1287 1288 }
1288 1289
1289 1290 if (err != 0)
1290 1291 rv = 1;
1291 1292 } else {
1292 1293 /* Open the given dataset */
1293 1294 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL)
1294 1295 return (1);
1295 1296
1296 1297 cb.cb_target = zhp;
1297 1298
1298 1299 /*
1299 1300 * Perform an explicit check for pools before going any further.
1300 1301 */
1301 1302 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL &&
1302 1303 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
1303 1304 (void) fprintf(stderr, gettext("cannot destroy '%s': "
1304 1305 "operation does not apply to pools\n"),
1305 1306 zfs_get_name(zhp));
1306 1307 (void) fprintf(stderr, gettext("use 'zfs destroy -r "
1307 1308 "%s' to destroy all datasets in the pool\n"),
1308 1309 zfs_get_name(zhp));
1309 1310 (void) fprintf(stderr, gettext("use 'zpool destroy %s' "
1310 1311 "to destroy the pool itself\n"), zfs_get_name(zhp));
1311 1312 rv = 1;
1312 1313 goto out;
1313 1314 }
1314 1315
1315 1316 /*
1316 1317 * Check for any dependents and/or clones.
1317 1318 */
1318 1319 cb.cb_first = B_TRUE;
1319 1320 if (!cb.cb_doclones &&
1320 1321 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent,
1321 1322 &cb) != 0) {
1322 1323 rv = 1;
1323 1324 goto out;
1324 1325 }
1325 1326
1326 1327 if (cb.cb_error) {
1327 1328 rv = 1;
1328 1329 goto out;
1329 1330 }
1330 1331
1331 1332 cb.cb_batchedsnaps = fnvlist_alloc();
1332 1333 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback,
1333 1334 &cb) != 0) {
1334 1335 rv = 1;
1335 1336 goto out;
1336 1337 }
1337 1338
1338 1339 /*
1339 1340 * Do the real thing. The callback will close the
1340 1341 * handle regardless of whether it succeeds or not.
1341 1342 */
1342 1343 err = destroy_callback(zhp, &cb);
1343 1344 zhp = NULL;
1344 1345 if (err == 0) {
1345 1346 err = zfs_destroy_snaps_nvl(g_zfs,
1346 1347 cb.cb_batchedsnaps, cb.cb_defer_destroy);
1347 1348 }
1348 1349 if (err != 0)
1349 1350 rv = 1;
1350 1351 }
1351 1352
1352 1353 out:
1353 1354 fnvlist_free(cb.cb_batchedsnaps);
1354 1355 fnvlist_free(cb.cb_nvl);
1355 1356 if (zhp != NULL)
1356 1357 zfs_close(zhp);
1357 1358 return (rv);
1358 1359 }
1359 1360
1360 1361 static boolean_t
1361 1362 is_recvd_column(zprop_get_cbdata_t *cbp)
1362 1363 {
1363 1364 int i;
1364 1365 zfs_get_column_t col;
1365 1366
1366 1367 for (i = 0; i < ZFS_GET_NCOLS &&
1367 1368 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++)
1368 1369 if (col == GET_COL_RECVD)
1369 1370 return (B_TRUE);
1370 1371 return (B_FALSE);
1371 1372 }
1372 1373
1373 1374 /*
1374 1375 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...]
1375 1376 * < all | property[,property]... > < fs | snap | vol > ...
1376 1377 *
1377 1378 * -r recurse over any child datasets
1378 1379 * -H scripted mode. Headers are stripped, and fields are separated
1379 1380 * by tabs instead of spaces.
1380 1381 * -o Set of fields to display. One of "name,property,value,
1381 1382 * received,source". Default is "name,property,value,source".
1382 1383 * "all" is an alias for all five.
1383 1384 * -s Set of sources to allow. One of
1384 1385 * "local,default,inherited,received,temporary,none". Default is
1385 1386 * all six.
1386 1387 * -p Display values in parsable (literal) format.
1387 1388 *
1388 1389 * Prints properties for the given datasets. The user can control which
1389 1390 * columns to display as well as which property types to allow.
1390 1391 */
1391 1392
1392 1393 /*
1393 1394 * Invoked to display the properties for a single dataset.
1394 1395 */
1395 1396 static int
1396 1397 get_callback(zfs_handle_t *zhp, void *data)
1397 1398 {
1398 1399 char buf[ZFS_MAXPROPLEN];
1399 1400 char rbuf[ZFS_MAXPROPLEN];
1400 1401 zprop_source_t sourcetype;
1401 1402 char source[ZFS_MAXNAMELEN];
1402 1403 zprop_get_cbdata_t *cbp = data;
1403 1404 nvlist_t *user_props = zfs_get_user_props(zhp);
1404 1405 zprop_list_t *pl = cbp->cb_proplist;
1405 1406 nvlist_t *propval;
1406 1407 char *strval;
1407 1408 char *sourceval;
1408 1409 boolean_t received = is_recvd_column(cbp);
1409 1410
1410 1411 for (; pl != NULL; pl = pl->pl_next) {
1411 1412 char *recvdval = NULL;
1412 1413 /*
1413 1414 * Skip the special fake placeholder. This will also skip over
1414 1415 * the name property when 'all' is specified.
1415 1416 */
1416 1417 if (pl->pl_prop == ZFS_PROP_NAME &&
1417 1418 pl == cbp->cb_proplist)
1418 1419 continue;
1419 1420
1420 1421 if (pl->pl_prop != ZPROP_INVAL) {
1421 1422 if (zfs_prop_get(zhp, pl->pl_prop, buf,
1422 1423 sizeof (buf), &sourcetype, source,
1423 1424 sizeof (source),
1424 1425 cbp->cb_literal) != 0) {
1425 1426 if (pl->pl_all)
1426 1427 continue;
1427 1428 if (!zfs_prop_valid_for_type(pl->pl_prop,
1428 1429 ZFS_TYPE_DATASET)) {
1429 1430 (void) fprintf(stderr,
1430 1431 gettext("No such property '%s'\n"),
1431 1432 zfs_prop_to_name(pl->pl_prop));
1432 1433 continue;
1433 1434 }
1434 1435 sourcetype = ZPROP_SRC_NONE;
1435 1436 (void) strlcpy(buf, "-", sizeof (buf));
1436 1437 }
1437 1438
1438 1439 if (received && (zfs_prop_get_recvd(zhp,
1439 1440 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf),
1440 1441 cbp->cb_literal) == 0))
1441 1442 recvdval = rbuf;
1442 1443
1443 1444 zprop_print_one_property(zfs_get_name(zhp), cbp,
1444 1445 zfs_prop_to_name(pl->pl_prop),
1445 1446 buf, sourcetype, source, recvdval);
1446 1447 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
1447 1448 sourcetype = ZPROP_SRC_LOCAL;
1448 1449
1449 1450 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
1450 1451 buf, sizeof (buf), cbp->cb_literal) != 0) {
1451 1452 sourcetype = ZPROP_SRC_NONE;
1452 1453 (void) strlcpy(buf, "-", sizeof (buf));
1453 1454 }
1454 1455
1455 1456 zprop_print_one_property(zfs_get_name(zhp), cbp,
1456 1457 pl->pl_user_prop, buf, sourcetype, source, NULL);
1457 1458 } else if (zfs_prop_written(pl->pl_user_prop)) {
1458 1459 sourcetype = ZPROP_SRC_LOCAL;
1459 1460
1460 1461 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
1461 1462 buf, sizeof (buf), cbp->cb_literal) != 0) {
1462 1463 sourcetype = ZPROP_SRC_NONE;
1463 1464 (void) strlcpy(buf, "-", sizeof (buf));
1464 1465 }
1465 1466
1466 1467 zprop_print_one_property(zfs_get_name(zhp), cbp,
1467 1468 pl->pl_user_prop, buf, sourcetype, source, NULL);
1468 1469 } else {
1469 1470 if (nvlist_lookup_nvlist(user_props,
1470 1471 pl->pl_user_prop, &propval) != 0) {
1471 1472 if (pl->pl_all)
1472 1473 continue;
1473 1474 sourcetype = ZPROP_SRC_NONE;
1474 1475 strval = "-";
1475 1476 } else {
1476 1477 verify(nvlist_lookup_string(propval,
1477 1478 ZPROP_VALUE, &strval) == 0);
1478 1479 verify(nvlist_lookup_string(propval,
1479 1480 ZPROP_SOURCE, &sourceval) == 0);
1480 1481
1481 1482 if (strcmp(sourceval,
1482 1483 zfs_get_name(zhp)) == 0) {
1483 1484 sourcetype = ZPROP_SRC_LOCAL;
1484 1485 } else if (strcmp(sourceval,
1485 1486 ZPROP_SOURCE_VAL_RECVD) == 0) {
1486 1487 sourcetype = ZPROP_SRC_RECEIVED;
1487 1488 } else {
1488 1489 sourcetype = ZPROP_SRC_INHERITED;
1489 1490 (void) strlcpy(source,
1490 1491 sourceval, sizeof (source));
1491 1492 }
1492 1493 }
1493 1494
1494 1495 if (received && (zfs_prop_get_recvd(zhp,
1495 1496 pl->pl_user_prop, rbuf, sizeof (rbuf),
1496 1497 cbp->cb_literal) == 0))
1497 1498 recvdval = rbuf;
1498 1499
1499 1500 zprop_print_one_property(zfs_get_name(zhp), cbp,
1500 1501 pl->pl_user_prop, strval, sourcetype,
1501 1502 source, recvdval);
1502 1503 }
1503 1504 }
1504 1505
1505 1506 return (0);
1506 1507 }
1507 1508
1508 1509 static int
1509 1510 zfs_do_get(int argc, char **argv)
1510 1511 {
1511 1512 zprop_get_cbdata_t cb = { 0 };
1512 1513 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1513 1514 int types = ZFS_TYPE_DATASET;
1514 1515 char *value, *fields;
1515 1516 int ret = 0;
1516 1517 int limit = 0;
1517 1518 zprop_list_t fake_name = { 0 };
1518 1519
1519 1520 /*
1520 1521 * Set up default columns and sources.
1521 1522 */
1522 1523 cb.cb_sources = ZPROP_SRC_ALL;
1523 1524 cb.cb_columns[0] = GET_COL_NAME;
1524 1525 cb.cb_columns[1] = GET_COL_PROPERTY;
1525 1526 cb.cb_columns[2] = GET_COL_VALUE;
1526 1527 cb.cb_columns[3] = GET_COL_SOURCE;
1527 1528 cb.cb_type = ZFS_TYPE_DATASET;
1528 1529
1529 1530 /* check options */
1530 1531 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) {
1531 1532 switch (c) {
1532 1533 case 'p':
1533 1534 cb.cb_literal = B_TRUE;
1534 1535 break;
1535 1536 case 'd':
1536 1537 limit = parse_depth(optarg, &flags);
1537 1538 break;
1538 1539 case 'r':
1539 1540 flags |= ZFS_ITER_RECURSE;
1540 1541 break;
1541 1542 case 'H':
1542 1543 cb.cb_scripted = B_TRUE;
1543 1544 break;
1544 1545 case ':':
1545 1546 (void) fprintf(stderr, gettext("missing argument for "
1546 1547 "'%c' option\n"), optopt);
1547 1548 usage(B_FALSE);
1548 1549 break;
1549 1550 case 'o':
1550 1551 /*
1551 1552 * Process the set of columns to display. We zero out
1552 1553 * the structure to give us a blank slate.
1553 1554 */
1554 1555 bzero(&cb.cb_columns, sizeof (cb.cb_columns));
1555 1556 i = 0;
1556 1557 while (*optarg != '\0') {
1557 1558 static char *col_subopts[] =
1558 1559 { "name", "property", "value", "received",
1559 1560 "source", "all", NULL };
1560 1561
1561 1562 if (i == ZFS_GET_NCOLS) {
1562 1563 (void) fprintf(stderr, gettext("too "
1563 1564 "many fields given to -o "
1564 1565 "option\n"));
1565 1566 usage(B_FALSE);
1566 1567 }
1567 1568
1568 1569 switch (getsubopt(&optarg, col_subopts,
1569 1570 &value)) {
1570 1571 case 0:
1571 1572 cb.cb_columns[i++] = GET_COL_NAME;
1572 1573 break;
1573 1574 case 1:
1574 1575 cb.cb_columns[i++] = GET_COL_PROPERTY;
1575 1576 break;
1576 1577 case 2:
1577 1578 cb.cb_columns[i++] = GET_COL_VALUE;
1578 1579 break;
1579 1580 case 3:
1580 1581 cb.cb_columns[i++] = GET_COL_RECVD;
1581 1582 flags |= ZFS_ITER_RECVD_PROPS;
1582 1583 break;
1583 1584 case 4:
1584 1585 cb.cb_columns[i++] = GET_COL_SOURCE;
1585 1586 break;
1586 1587 case 5:
1587 1588 if (i > 0) {
1588 1589 (void) fprintf(stderr,
1589 1590 gettext("\"all\" conflicts "
1590 1591 "with specific fields "
1591 1592 "given to -o option\n"));
1592 1593 usage(B_FALSE);
1593 1594 }
1594 1595 cb.cb_columns[0] = GET_COL_NAME;
1595 1596 cb.cb_columns[1] = GET_COL_PROPERTY;
1596 1597 cb.cb_columns[2] = GET_COL_VALUE;
1597 1598 cb.cb_columns[3] = GET_COL_RECVD;
1598 1599 cb.cb_columns[4] = GET_COL_SOURCE;
1599 1600 flags |= ZFS_ITER_RECVD_PROPS;
1600 1601 i = ZFS_GET_NCOLS;
1601 1602 break;
1602 1603 default:
1603 1604 (void) fprintf(stderr,
1604 1605 gettext("invalid column name "
1605 1606 "'%s'\n"), value);
1606 1607 usage(B_FALSE);
1607 1608 }
1608 1609 }
1609 1610 break;
1610 1611
1611 1612 case 's':
1612 1613 cb.cb_sources = 0;
1613 1614 while (*optarg != '\0') {
1614 1615 static char *source_subopts[] = {
1615 1616 "local", "default", "inherited",
1616 1617 "received", "temporary", "none",
1617 1618 NULL };
1618 1619
1619 1620 switch (getsubopt(&optarg, source_subopts,
1620 1621 &value)) {
1621 1622 case 0:
1622 1623 cb.cb_sources |= ZPROP_SRC_LOCAL;
1623 1624 break;
1624 1625 case 1:
1625 1626 cb.cb_sources |= ZPROP_SRC_DEFAULT;
1626 1627 break;
1627 1628 case 2:
1628 1629 cb.cb_sources |= ZPROP_SRC_INHERITED;
1629 1630 break;
1630 1631 case 3:
1631 1632 cb.cb_sources |= ZPROP_SRC_RECEIVED;
1632 1633 break;
1633 1634 case 4:
1634 1635 cb.cb_sources |= ZPROP_SRC_TEMPORARY;
1635 1636 break;
1636 1637 case 5:
1637 1638 cb.cb_sources |= ZPROP_SRC_NONE;
1638 1639 break;
1639 1640 default:
1640 1641 (void) fprintf(stderr,
1641 1642 gettext("invalid source "
1642 1643 "'%s'\n"), value);
1643 1644 usage(B_FALSE);
1644 1645 }
1645 1646 }
1646 1647 break;
1647 1648
1648 1649 case 't':
1649 1650 types = 0;
1650 1651 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
1651 1652 while (*optarg != '\0') {
1652 1653 static char *type_subopts[] = { "filesystem",
1653 1654 "volume", "snapshot", "all", NULL };
1654 1655
1655 1656 switch (getsubopt(&optarg, type_subopts,
1656 1657 &value)) {
1657 1658 case 0:
1658 1659 types |= ZFS_TYPE_FILESYSTEM;
1659 1660 break;
1660 1661 case 1:
1661 1662 types |= ZFS_TYPE_VOLUME;
1662 1663 break;
1663 1664 case 2:
1664 1665 types |= ZFS_TYPE_SNAPSHOT;
1665 1666 break;
1666 1667 case 3:
1667 1668 types = ZFS_TYPE_DATASET;
1668 1669 break;
1669 1670
1670 1671 default:
1671 1672 (void) fprintf(stderr,
1672 1673 gettext("invalid type '%s'\n"),
1673 1674 value);
1674 1675 usage(B_FALSE);
1675 1676 }
1676 1677 }
1677 1678 break;
1678 1679
1679 1680 case '?':
1680 1681 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1681 1682 optopt);
1682 1683 usage(B_FALSE);
1683 1684 }
1684 1685 }
1685 1686
1686 1687 argc -= optind;
1687 1688 argv += optind;
1688 1689
1689 1690 if (argc < 1) {
1690 1691 (void) fprintf(stderr, gettext("missing property "
1691 1692 "argument\n"));
1692 1693 usage(B_FALSE);
1693 1694 }
1694 1695
1695 1696 fields = argv[0];
1696 1697
1697 1698 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
1698 1699 != 0)
1699 1700 usage(B_FALSE);
1700 1701
1701 1702 argc--;
1702 1703 argv++;
1703 1704
1704 1705 /*
1705 1706 * As part of zfs_expand_proplist(), we keep track of the maximum column
1706 1707 * width for each property. For the 'NAME' (and 'SOURCE') columns, we
1707 1708 * need to know the maximum name length. However, the user likely did
1708 1709 * not specify 'name' as one of the properties to fetch, so we need to
1709 1710 * make sure we always include at least this property for
1710 1711 * print_get_headers() to work properly.
1711 1712 */
1712 1713 if (cb.cb_proplist != NULL) {
1713 1714 fake_name.pl_prop = ZFS_PROP_NAME;
1714 1715 fake_name.pl_width = strlen(gettext("NAME"));
1715 1716 fake_name.pl_next = cb.cb_proplist;
1716 1717 cb.cb_proplist = &fake_name;
1717 1718 }
1718 1719
1719 1720 cb.cb_first = B_TRUE;
1720 1721
1721 1722 /* run for each object */
1722 1723 ret = zfs_for_each(argc, argv, flags, types, NULL,
1723 1724 &cb.cb_proplist, limit, get_callback, &cb);
1724 1725
1725 1726 if (cb.cb_proplist == &fake_name)
1726 1727 zprop_free_list(fake_name.pl_next);
1727 1728 else
1728 1729 zprop_free_list(cb.cb_proplist);
1729 1730
1730 1731 return (ret);
1731 1732 }
1732 1733
1733 1734 /*
1734 1735 * inherit [-rS] <property> <fs|vol> ...
1735 1736 *
1736 1737 * -r Recurse over all children
1737 1738 * -S Revert to received value, if any
1738 1739 *
1739 1740 * For each dataset specified on the command line, inherit the given property
1740 1741 * from its parent. Inheriting a property at the pool level will cause it to
1741 1742 * use the default value. The '-r' flag will recurse over all children, and is
1742 1743 * useful for setting a property on a hierarchy-wide basis, regardless of any
1743 1744 * local modifications for each dataset.
1744 1745 */
1745 1746
1746 1747 typedef struct inherit_cbdata {
1747 1748 const char *cb_propname;
1748 1749 boolean_t cb_received;
1749 1750 } inherit_cbdata_t;
1750 1751
1751 1752 static int
1752 1753 inherit_recurse_cb(zfs_handle_t *zhp, void *data)
1753 1754 {
1754 1755 inherit_cbdata_t *cb = data;
1755 1756 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname);
1756 1757
1757 1758 /*
1758 1759 * If we're doing it recursively, then ignore properties that
1759 1760 * are not valid for this type of dataset.
1760 1761 */
1761 1762 if (prop != ZPROP_INVAL &&
1762 1763 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp)))
1763 1764 return (0);
1764 1765
1765 1766 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1766 1767 }
1767 1768
1768 1769 static int
1769 1770 inherit_cb(zfs_handle_t *zhp, void *data)
1770 1771 {
1771 1772 inherit_cbdata_t *cb = data;
1772 1773
1773 1774 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0);
1774 1775 }
1775 1776
1776 1777 static int
1777 1778 zfs_do_inherit(int argc, char **argv)
1778 1779 {
1779 1780 int c;
1780 1781 zfs_prop_t prop;
1781 1782 inherit_cbdata_t cb = { 0 };
1782 1783 char *propname;
1783 1784 int ret = 0;
1784 1785 int flags = 0;
1785 1786 boolean_t received = B_FALSE;
1786 1787
1787 1788 /* check options */
1788 1789 while ((c = getopt(argc, argv, "rS")) != -1) {
1789 1790 switch (c) {
1790 1791 case 'r':
1791 1792 flags |= ZFS_ITER_RECURSE;
1792 1793 break;
1793 1794 case 'S':
1794 1795 received = B_TRUE;
1795 1796 break;
1796 1797 case '?':
1797 1798 default:
1798 1799 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1799 1800 optopt);
1800 1801 usage(B_FALSE);
1801 1802 }
1802 1803 }
1803 1804
1804 1805 argc -= optind;
1805 1806 argv += optind;
1806 1807
1807 1808 /* check number of arguments */
1808 1809 if (argc < 1) {
1809 1810 (void) fprintf(stderr, gettext("missing property argument\n"));
1810 1811 usage(B_FALSE);
1811 1812 }
1812 1813 if (argc < 2) {
1813 1814 (void) fprintf(stderr, gettext("missing dataset argument\n"));
1814 1815 usage(B_FALSE);
1815 1816 }
1816 1817
1817 1818 propname = argv[0];
1818 1819 argc--;
1819 1820 argv++;
1820 1821
1821 1822 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
1822 1823 if (zfs_prop_readonly(prop)) {
1823 1824 (void) fprintf(stderr, gettext(
1824 1825 "%s property is read-only\n"),
1825 1826 propname);
1826 1827 return (1);
1827 1828 }
1828 1829 if (!zfs_prop_inheritable(prop) && !received) {
1829 1830 (void) fprintf(stderr, gettext("'%s' property cannot "
1830 1831 "be inherited\n"), propname);
1831 1832 if (prop == ZFS_PROP_QUOTA ||
1832 1833 prop == ZFS_PROP_RESERVATION ||
1833 1834 prop == ZFS_PROP_REFQUOTA ||
1834 1835 prop == ZFS_PROP_REFRESERVATION)
1835 1836 (void) fprintf(stderr, gettext("use 'zfs set "
1836 1837 "%s=none' to clear\n"), propname);
1837 1838 return (1);
1838 1839 }
1839 1840 if (received && (prop == ZFS_PROP_VOLSIZE ||
1840 1841 prop == ZFS_PROP_VERSION)) {
1841 1842 (void) fprintf(stderr, gettext("'%s' property cannot "
1842 1843 "be reverted to a received value\n"), propname);
1843 1844 return (1);
1844 1845 }
1845 1846 } else if (!zfs_prop_user(propname)) {
1846 1847 (void) fprintf(stderr, gettext("invalid property '%s'\n"),
1847 1848 propname);
1848 1849 usage(B_FALSE);
1849 1850 }
1850 1851
1851 1852 cb.cb_propname = propname;
1852 1853 cb.cb_received = received;
1853 1854
1854 1855 if (flags & ZFS_ITER_RECURSE) {
1855 1856 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1856 1857 NULL, NULL, 0, inherit_recurse_cb, &cb);
1857 1858 } else {
1858 1859 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET,
1859 1860 NULL, NULL, 0, inherit_cb, &cb);
1860 1861 }
1861 1862
1862 1863 return (ret);
1863 1864 }
1864 1865
1865 1866 typedef struct upgrade_cbdata {
1866 1867 uint64_t cb_numupgraded;
1867 1868 uint64_t cb_numsamegraded;
1868 1869 uint64_t cb_numfailed;
1869 1870 uint64_t cb_version;
1870 1871 boolean_t cb_newer;
1871 1872 boolean_t cb_foundone;
1872 1873 char cb_lastfs[ZFS_MAXNAMELEN];
1873 1874 } upgrade_cbdata_t;
1874 1875
1875 1876 static int
1876 1877 same_pool(zfs_handle_t *zhp, const char *name)
1877 1878 {
1878 1879 int len1 = strcspn(name, "/@");
1879 1880 const char *zhname = zfs_get_name(zhp);
1880 1881 int len2 = strcspn(zhname, "/@");
1881 1882
1882 1883 if (len1 != len2)
1883 1884 return (B_FALSE);
1884 1885 return (strncmp(name, zhname, len1) == 0);
1885 1886 }
1886 1887
1887 1888 static int
1888 1889 upgrade_list_callback(zfs_handle_t *zhp, void *data)
1889 1890 {
1890 1891 upgrade_cbdata_t *cb = data;
1891 1892 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1892 1893
1893 1894 /* list if it's old/new */
1894 1895 if ((!cb->cb_newer && version < ZPL_VERSION) ||
1895 1896 (cb->cb_newer && version > ZPL_VERSION)) {
1896 1897 char *str;
1897 1898 if (cb->cb_newer) {
1898 1899 str = gettext("The following filesystems are "
1899 1900 "formatted using a newer software version and\n"
1900 1901 "cannot be accessed on the current system.\n\n");
1901 1902 } else {
1902 1903 str = gettext("The following filesystems are "
1903 1904 "out of date, and can be upgraded. After being\n"
1904 1905 "upgraded, these filesystems (and any 'zfs send' "
1905 1906 "streams generated from\n"
1906 1907 "subsequent snapshots) will no longer be "
1907 1908 "accessible by older software versions.\n\n");
1908 1909 }
1909 1910
1910 1911 if (!cb->cb_foundone) {
1911 1912 (void) puts(str);
1912 1913 (void) printf(gettext("VER FILESYSTEM\n"));
1913 1914 (void) printf(gettext("--- ------------\n"));
1914 1915 cb->cb_foundone = B_TRUE;
1915 1916 }
1916 1917
1917 1918 (void) printf("%2u %s\n", version, zfs_get_name(zhp));
1918 1919 }
1919 1920
1920 1921 return (0);
1921 1922 }
1922 1923
1923 1924 static int
1924 1925 upgrade_set_callback(zfs_handle_t *zhp, void *data)
1925 1926 {
1926 1927 upgrade_cbdata_t *cb = data;
1927 1928 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
1928 1929 int needed_spa_version;
1929 1930 int spa_version;
1930 1931
1931 1932 if (zfs_spa_version(zhp, &spa_version) < 0)
1932 1933 return (-1);
1933 1934
1934 1935 needed_spa_version = zfs_spa_version_map(cb->cb_version);
1935 1936
1936 1937 if (needed_spa_version < 0)
1937 1938 return (-1);
1938 1939
1939 1940 if (spa_version < needed_spa_version) {
1940 1941 /* can't upgrade */
1941 1942 (void) printf(gettext("%s: can not be "
1942 1943 "upgraded; the pool version needs to first "
1943 1944 "be upgraded\nto version %d\n\n"),
1944 1945 zfs_get_name(zhp), needed_spa_version);
1945 1946 cb->cb_numfailed++;
1946 1947 return (0);
1947 1948 }
1948 1949
1949 1950 /* upgrade */
1950 1951 if (version < cb->cb_version) {
1951 1952 char verstr[16];
1952 1953 (void) snprintf(verstr, sizeof (verstr),
1953 1954 "%llu", cb->cb_version);
1954 1955 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) {
1955 1956 /*
1956 1957 * If they did "zfs upgrade -a", then we could
1957 1958 * be doing ioctls to different pools. We need
1958 1959 * to log this history once to each pool, and bypass
1959 1960 * the normal history logging that happens in main().
1960 1961 */
1961 1962 (void) zpool_log_history(g_zfs, history_str);
1962 1963 log_history = B_FALSE;
1963 1964 }
1964 1965 if (zfs_prop_set(zhp, "version", verstr) == 0)
1965 1966 cb->cb_numupgraded++;
1966 1967 else
1967 1968 cb->cb_numfailed++;
1968 1969 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp));
1969 1970 } else if (version > cb->cb_version) {
1970 1971 /* can't downgrade */
1971 1972 (void) printf(gettext("%s: can not be downgraded; "
1972 1973 "it is already at version %u\n"),
1973 1974 zfs_get_name(zhp), version);
1974 1975 cb->cb_numfailed++;
1975 1976 } else {
1976 1977 cb->cb_numsamegraded++;
1977 1978 }
1978 1979 return (0);
1979 1980 }
1980 1981
1981 1982 /*
1982 1983 * zfs upgrade
1983 1984 * zfs upgrade -v
1984 1985 * zfs upgrade [-r] [-V <version>] <-a | filesystem>
1985 1986 */
1986 1987 static int
1987 1988 zfs_do_upgrade(int argc, char **argv)
1988 1989 {
1989 1990 boolean_t all = B_FALSE;
1990 1991 boolean_t showversions = B_FALSE;
1991 1992 int ret = 0;
1992 1993 upgrade_cbdata_t cb = { 0 };
1993 1994 char c;
1994 1995 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
1995 1996
1996 1997 /* check options */
1997 1998 while ((c = getopt(argc, argv, "rvV:a")) != -1) {
1998 1999 switch (c) {
1999 2000 case 'r':
2000 2001 flags |= ZFS_ITER_RECURSE;
2001 2002 break;
2002 2003 case 'v':
2003 2004 showversions = B_TRUE;
2004 2005 break;
2005 2006 case 'V':
2006 2007 if (zfs_prop_string_to_index(ZFS_PROP_VERSION,
2007 2008 optarg, &cb.cb_version) != 0) {
2008 2009 (void) fprintf(stderr,
2009 2010 gettext("invalid version %s\n"), optarg);
2010 2011 usage(B_FALSE);
2011 2012 }
2012 2013 break;
2013 2014 case 'a':
2014 2015 all = B_TRUE;
2015 2016 break;
2016 2017 case '?':
2017 2018 default:
2018 2019 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2019 2020 optopt);
2020 2021 usage(B_FALSE);
2021 2022 }
2022 2023 }
2023 2024
2024 2025 argc -= optind;
2025 2026 argv += optind;
2026 2027
2027 2028 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version))
2028 2029 usage(B_FALSE);
2029 2030 if (showversions && (flags & ZFS_ITER_RECURSE || all ||
2030 2031 cb.cb_version || argc))
2031 2032 usage(B_FALSE);
2032 2033 if ((all || argc) && (showversions))
2033 2034 usage(B_FALSE);
2034 2035 if (all && argc)
2035 2036 usage(B_FALSE);
2036 2037
2037 2038 if (showversions) {
2038 2039 /* Show info on available versions. */
2039 2040 (void) printf(gettext("The following filesystem versions are "
2040 2041 "supported:\n\n"));
2041 2042 (void) printf(gettext("VER DESCRIPTION\n"));
2042 2043 (void) printf("--- -----------------------------------------"
2043 2044 "---------------\n");
2044 2045 (void) printf(gettext(" 1 Initial ZFS filesystem version\n"));
2045 2046 (void) printf(gettext(" 2 Enhanced directory entries\n"));
2046 2047 (void) printf(gettext(" 3 Case insensitive and filesystem "
2047 2048 "user identifier (FUID)\n"));
2048 2049 (void) printf(gettext(" 4 userquota, groupquota "
2049 2050 "properties\n"));
2050 2051 (void) printf(gettext(" 5 System attributes\n"));
2051 2052 (void) printf(gettext("\nFor more information on a particular "
2052 2053 "version, including supported releases,\n"));
2053 2054 (void) printf("see the ZFS Administration Guide.\n\n");
2054 2055 ret = 0;
2055 2056 } else if (argc || all) {
2056 2057 /* Upgrade filesystems */
2057 2058 if (cb.cb_version == 0)
2058 2059 cb.cb_version = ZPL_VERSION;
2059 2060 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM,
2060 2061 NULL, NULL, 0, upgrade_set_callback, &cb);
2061 2062 (void) printf(gettext("%llu filesystems upgraded\n"),
2062 2063 cb.cb_numupgraded);
2063 2064 if (cb.cb_numsamegraded) {
2064 2065 (void) printf(gettext("%llu filesystems already at "
2065 2066 "this version\n"),
2066 2067 cb.cb_numsamegraded);
2067 2068 }
2068 2069 if (cb.cb_numfailed != 0)
2069 2070 ret = 1;
2070 2071 } else {
2071 2072 /* List old-version filesytems */
2072 2073 boolean_t found;
2073 2074 (void) printf(gettext("This system is currently running "
2074 2075 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION);
2075 2076
2076 2077 flags |= ZFS_ITER_RECURSE;
2077 2078 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2078 2079 NULL, NULL, 0, upgrade_list_callback, &cb);
2079 2080
2080 2081 found = cb.cb_foundone;
2081 2082 cb.cb_foundone = B_FALSE;
2082 2083 cb.cb_newer = B_TRUE;
2083 2084
2084 2085 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM,
2085 2086 NULL, NULL, 0, upgrade_list_callback, &cb);
2086 2087
2087 2088 if (!cb.cb_foundone && !found) {
2088 2089 (void) printf(gettext("All filesystems are "
2089 2090 "formatted with the current version.\n"));
2090 2091 }
2091 2092 }
2092 2093
2093 2094 return (ret);
2094 2095 }
2095 2096
2096 2097 /*
2097 2098 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2098 2099 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2099 2100 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...]
2100 2101 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot
2101 2102 *
2102 2103 * -H Scripted mode; elide headers and separate columns by tabs.
2103 2104 * -i Translate SID to POSIX ID.
2104 2105 * -n Print numeric ID instead of user/group name.
2105 2106 * -o Control which fields to display.
2106 2107 * -p Use exact (parseable) numeric output.
2107 2108 * -s Specify sort columns, descending order.
2108 2109 * -S Specify sort columns, ascending order.
2109 2110 * -t Control which object types to display.
2110 2111 *
2111 2112 * Displays space consumed by, and quotas on, each user in the specified
2112 2113 * filesystem or snapshot.
2113 2114 */
2114 2115
2115 2116 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */
2116 2117 enum us_field_types {
2117 2118 USFIELD_TYPE,
2118 2119 USFIELD_NAME,
2119 2120 USFIELD_USED,
2120 2121 USFIELD_QUOTA
2121 2122 };
2122 2123 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" };
2123 2124 static char *us_field_names[] = { "type", "name", "used", "quota" };
2124 2125 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *))
2125 2126
2126 2127 #define USTYPE_PSX_GRP (1 << 0)
2127 2128 #define USTYPE_PSX_USR (1 << 1)
2128 2129 #define USTYPE_SMB_GRP (1 << 2)
2129 2130 #define USTYPE_SMB_USR (1 << 3)
2130 2131 #define USTYPE_ALL \
2131 2132 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR)
2132 2133
2133 2134 static int us_type_bits[] = {
2134 2135 USTYPE_PSX_GRP,
2135 2136 USTYPE_PSX_USR,
2136 2137 USTYPE_SMB_GRP,
2137 2138 USTYPE_SMB_USR,
2138 2139 USTYPE_ALL
2139 2140 };
2140 2141 static char *us_type_names[] = { "posixgroup", "posxiuser", "smbgroup",
2141 2142 "smbuser", "all" };
2142 2143
2143 2144 typedef struct us_node {
2144 2145 nvlist_t *usn_nvl;
2145 2146 uu_avl_node_t usn_avlnode;
2146 2147 uu_list_node_t usn_listnode;
2147 2148 } us_node_t;
2148 2149
2149 2150 typedef struct us_cbdata {
2150 2151 nvlist_t **cb_nvlp;
2151 2152 uu_avl_pool_t *cb_avl_pool;
2152 2153 uu_avl_t *cb_avl;
2153 2154 boolean_t cb_numname;
2154 2155 boolean_t cb_nicenum;
2155 2156 boolean_t cb_sid2posix;
2156 2157 zfs_userquota_prop_t cb_prop;
2157 2158 zfs_sort_column_t *cb_sortcol;
2158 2159 size_t cb_width[USFIELD_LAST];
2159 2160 } us_cbdata_t;
2160 2161
2161 2162 static boolean_t us_populated = B_FALSE;
2162 2163
2163 2164 typedef struct {
2164 2165 zfs_sort_column_t *si_sortcol;
2165 2166 boolean_t si_numname;
2166 2167 } us_sort_info_t;
2167 2168
2168 2169 static int
2169 2170 us_field_index(char *field)
2170 2171 {
2171 2172 int i;
2172 2173
2173 2174 for (i = 0; i < USFIELD_LAST; i++) {
2174 2175 if (strcmp(field, us_field_names[i]) == 0)
2175 2176 return (i);
2176 2177 }
2177 2178
2178 2179 return (-1);
2179 2180 }
2180 2181
2181 2182 static int
2182 2183 us_compare(const void *larg, const void *rarg, void *unused)
2183 2184 {
2184 2185 const us_node_t *l = larg;
2185 2186 const us_node_t *r = rarg;
2186 2187 us_sort_info_t *si = (us_sort_info_t *)unused;
2187 2188 zfs_sort_column_t *sortcol = si->si_sortcol;
2188 2189 boolean_t numname = si->si_numname;
2189 2190 nvlist_t *lnvl = l->usn_nvl;
2190 2191 nvlist_t *rnvl = r->usn_nvl;
2191 2192 int rc = 0;
2192 2193 boolean_t lvb, rvb;
2193 2194
2194 2195 for (; sortcol != NULL; sortcol = sortcol->sc_next) {
2195 2196 char *lvstr = "";
2196 2197 char *rvstr = "";
2197 2198 uint32_t lv32 = 0;
2198 2199 uint32_t rv32 = 0;
2199 2200 uint64_t lv64 = 0;
2200 2201 uint64_t rv64 = 0;
2201 2202 zfs_prop_t prop = sortcol->sc_prop;
2202 2203 const char *propname = NULL;
2203 2204 boolean_t reverse = sortcol->sc_reverse;
2204 2205
2205 2206 switch (prop) {
2206 2207 case ZFS_PROP_TYPE:
2207 2208 propname = "type";
2208 2209 (void) nvlist_lookup_uint32(lnvl, propname, &lv32);
2209 2210 (void) nvlist_lookup_uint32(rnvl, propname, &rv32);
2210 2211 if (rv32 != lv32)
2211 2212 rc = (rv32 < lv32) ? 1 : -1;
2212 2213 break;
2213 2214 case ZFS_PROP_NAME:
2214 2215 propname = "name";
2215 2216 if (numname) {
2216 2217 (void) nvlist_lookup_uint64(lnvl, propname,
2217 2218 &lv64);
2218 2219 (void) nvlist_lookup_uint64(rnvl, propname,
2219 2220 &rv64);
2220 2221 if (rv64 != lv64)
2221 2222 rc = (rv64 < lv64) ? 1 : -1;
2222 2223 } else {
2223 2224 (void) nvlist_lookup_string(lnvl, propname,
2224 2225 &lvstr);
2225 2226 (void) nvlist_lookup_string(rnvl, propname,
2226 2227 &rvstr);
2227 2228 rc = strcmp(lvstr, rvstr);
2228 2229 }
2229 2230 break;
2230 2231 case ZFS_PROP_USED:
2231 2232 case ZFS_PROP_QUOTA:
2232 2233 if (!us_populated)
2233 2234 break;
2234 2235 if (prop == ZFS_PROP_USED)
2235 2236 propname = "used";
2236 2237 else
2237 2238 propname = "quota";
2238 2239 (void) nvlist_lookup_uint64(lnvl, propname, &lv64);
2239 2240 (void) nvlist_lookup_uint64(rnvl, propname, &rv64);
2240 2241 if (rv64 != lv64)
2241 2242 rc = (rv64 < lv64) ? 1 : -1;
2242 2243 break;
2243 2244 }
2244 2245
2245 2246 if (rc != 0) {
2246 2247 if (rc < 0)
2247 2248 return (reverse ? 1 : -1);
2248 2249 else
2249 2250 return (reverse ? -1 : 1);
2250 2251 }
2251 2252 }
2252 2253
2253 2254 /*
2254 2255 * If entries still seem to be the same, check if they are of the same
2255 2256 * type (smbentity is added only if we are doing SID to POSIX ID
2256 2257 * translation where we can have duplicate type/name combinations).
2257 2258 */
2258 2259 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 &&
2259 2260 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 &&
2260 2261 lvb != rvb)
2261 2262 return (lvb < rvb ? -1 : 1);
2262 2263
2263 2264 return (0);
2264 2265 }
2265 2266
2266 2267 static inline const char *
2267 2268 us_type2str(unsigned field_type)
2268 2269 {
2269 2270 switch (field_type) {
2270 2271 case USTYPE_PSX_USR:
2271 2272 return ("POSIX User");
2272 2273 case USTYPE_PSX_GRP:
2273 2274 return ("POSIX Group");
2274 2275 case USTYPE_SMB_USR:
2275 2276 return ("SMB User");
2276 2277 case USTYPE_SMB_GRP:
2277 2278 return ("SMB Group");
2278 2279 default:
2279 2280 return ("Undefined");
2280 2281 }
2281 2282 }
2282 2283
2283 2284 static int
2284 2285 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space)
2285 2286 {
2286 2287 us_cbdata_t *cb = (us_cbdata_t *)arg;
2287 2288 zfs_userquota_prop_t prop = cb->cb_prop;
2288 2289 char *name = NULL;
2289 2290 char *propname;
2290 2291 char sizebuf[32];
2291 2292 us_node_t *node;
2292 2293 uu_avl_pool_t *avl_pool = cb->cb_avl_pool;
2293 2294 uu_avl_t *avl = cb->cb_avl;
2294 2295 uu_avl_index_t idx;
2295 2296 nvlist_t *props;
2296 2297 us_node_t *n;
2297 2298 zfs_sort_column_t *sortcol = cb->cb_sortcol;
2298 2299 unsigned type;
2299 2300 const char *typestr;
2300 2301 size_t namelen;
2301 2302 size_t typelen;
2302 2303 size_t sizelen;
2303 2304 int typeidx, nameidx, sizeidx;
2304 2305 us_sort_info_t sortinfo = { sortcol, cb->cb_numname };
2305 2306 boolean_t smbentity = B_FALSE;
2306 2307
2307 2308 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
2308 2309 nomem();
2309 2310 node = safe_malloc(sizeof (us_node_t));
2310 2311 uu_avl_node_init(node, &node->usn_avlnode, avl_pool);
2311 2312 node->usn_nvl = props;
2312 2313
2313 2314 if (domain != NULL && domain[0] != '\0') {
2314 2315 /* SMB */
2315 2316 char sid[ZFS_MAXNAMELEN + 32];
2316 2317 uid_t id;
2317 2318 uint64_t classes;
2318 2319 int err;
2319 2320 directory_error_t e;
2320 2321
2321 2322 smbentity = B_TRUE;
2322 2323
2323 2324 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid);
2324 2325
2325 2326 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2326 2327 type = USTYPE_SMB_GRP;
2327 2328 err = sid_to_id(sid, B_FALSE, &id);
2328 2329 } else {
2329 2330 type = USTYPE_SMB_USR;
2330 2331 err = sid_to_id(sid, B_TRUE, &id);
2331 2332 }
2332 2333
2333 2334 if (err == 0) {
2334 2335 rid = id;
2335 2336 if (!cb->cb_sid2posix) {
2336 2337 e = directory_name_from_sid(NULL, sid, &name,
2337 2338 &classes);
2338 2339 if (e != NULL)
2339 2340 directory_error_free(e);
2340 2341 if (name == NULL)
2341 2342 name = sid;
2342 2343 }
2343 2344 }
2344 2345 }
2345 2346
2346 2347 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') {
2347 2348 /* POSIX or -i */
2348 2349 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) {
2349 2350 type = USTYPE_PSX_GRP;
2350 2351 if (!cb->cb_numname) {
2351 2352 struct group *g;
2352 2353
2353 2354 if ((g = getgrgid(rid)) != NULL)
2354 2355 name = g->gr_name;
2355 2356 }
2356 2357 } else {
2357 2358 type = USTYPE_PSX_USR;
2358 2359 if (!cb->cb_numname) {
2359 2360 struct passwd *p;
2360 2361
2361 2362 if ((p = getpwuid(rid)) != NULL)
2362 2363 name = p->pw_name;
2363 2364 }
2364 2365 }
2365 2366 }
2366 2367
2367 2368 /*
2368 2369 * Make sure that the type/name combination is unique when doing
2369 2370 * SID to POSIX ID translation (hence changing the type from SMB to
2370 2371 * POSIX).
2371 2372 */
2372 2373 if (cb->cb_sid2posix &&
2373 2374 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0)
2374 2375 nomem();
2375 2376
2376 2377 /* Calculate/update width of TYPE field */
2377 2378 typestr = us_type2str(type);
2378 2379 typelen = strlen(gettext(typestr));
2379 2380 typeidx = us_field_index("type");
2380 2381 if (typelen > cb->cb_width[typeidx])
2381 2382 cb->cb_width[typeidx] = typelen;
2382 2383 if (nvlist_add_uint32(props, "type", type) != 0)
2383 2384 nomem();
2384 2385
2385 2386 /* Calculate/update width of NAME field */
2386 2387 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) {
2387 2388 if (nvlist_add_uint64(props, "name", rid) != 0)
2388 2389 nomem();
2389 2390 namelen = snprintf(NULL, 0, "%u", rid);
2390 2391 } else {
2391 2392 if (nvlist_add_string(props, "name", name) != 0)
2392 2393 nomem();
2393 2394 namelen = strlen(name);
2394 2395 }
2395 2396 nameidx = us_field_index("name");
2396 2397 if (namelen > cb->cb_width[nameidx])
2397 2398 cb->cb_width[nameidx] = namelen;
2398 2399
2399 2400 /*
2400 2401 * Check if this type/name combination is in the list and update it;
2401 2402 * otherwise add new node to the list.
2402 2403 */
2403 2404 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) {
2404 2405 uu_avl_insert(avl, node, idx);
2405 2406 } else {
2406 2407 nvlist_free(props);
2407 2408 free(node);
2408 2409 node = n;
2409 2410 props = node->usn_nvl;
2410 2411 }
2411 2412
2412 2413 /* Calculate/update width of USED/QUOTA fields */
2413 2414 if (cb->cb_nicenum)
2414 2415 zfs_nicenum(space, sizebuf, sizeof (sizebuf));
2415 2416 else
2416 2417 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space);
2417 2418 sizelen = strlen(sizebuf);
2418 2419 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) {
2419 2420 propname = "used";
2420 2421 if (!nvlist_exists(props, "quota"))
2421 2422 (void) nvlist_add_uint64(props, "quota", 0);
2422 2423 } else {
2423 2424 propname = "quota";
2424 2425 if (!nvlist_exists(props, "used"))
2425 2426 (void) nvlist_add_uint64(props, "used", 0);
2426 2427 }
2427 2428 sizeidx = us_field_index(propname);
2428 2429 if (sizelen > cb->cb_width[sizeidx])
2429 2430 cb->cb_width[sizeidx] = sizelen;
2430 2431
2431 2432 if (nvlist_add_uint64(props, propname, space) != 0)
2432 2433 nomem();
2433 2434
2434 2435 return (0);
2435 2436 }
2436 2437
2437 2438 static void
2438 2439 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types,
2439 2440 size_t *width, us_node_t *node)
2440 2441 {
2441 2442 nvlist_t *nvl = node->usn_nvl;
2442 2443 char valstr[ZFS_MAXNAMELEN];
2443 2444 boolean_t first = B_TRUE;
2444 2445 int cfield = 0;
2445 2446 int field;
2446 2447 uint32_t ustype;
2447 2448
2448 2449 /* Check type */
2449 2450 (void) nvlist_lookup_uint32(nvl, "type", &ustype);
2450 2451 if (!(ustype & types))
2451 2452 return;
2452 2453
2453 2454 while ((field = fields[cfield]) != USFIELD_LAST) {
2454 2455 nvpair_t *nvp = NULL;
2455 2456 data_type_t type;
2456 2457 uint32_t val32;
2457 2458 uint64_t val64;
2458 2459 char *strval = NULL;
2459 2460
2460 2461 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2461 2462 if (strcmp(nvpair_name(nvp),
2462 2463 us_field_names[field]) == 0)
2463 2464 break;
2464 2465 }
2465 2466
2466 2467 type = nvpair_type(nvp);
2467 2468 switch (type) {
2468 2469 case DATA_TYPE_UINT32:
2469 2470 (void) nvpair_value_uint32(nvp, &val32);
2470 2471 break;
2471 2472 case DATA_TYPE_UINT64:
2472 2473 (void) nvpair_value_uint64(nvp, &val64);
2473 2474 break;
2474 2475 case DATA_TYPE_STRING:
2475 2476 (void) nvpair_value_string(nvp, &strval);
2476 2477 break;
2477 2478 default:
2478 2479 (void) fprintf(stderr, "invalid data type\n");
2479 2480 }
2480 2481
2481 2482 switch (field) {
2482 2483 case USFIELD_TYPE:
2483 2484 strval = (char *)us_type2str(val32);
2484 2485 break;
2485 2486 case USFIELD_NAME:
2486 2487 if (type == DATA_TYPE_UINT64) {
2487 2488 (void) sprintf(valstr, "%llu", val64);
2488 2489 strval = valstr;
2489 2490 }
2490 2491 break;
2491 2492 case USFIELD_USED:
2492 2493 case USFIELD_QUOTA:
2493 2494 if (type == DATA_TYPE_UINT64) {
2494 2495 if (parsable) {
2495 2496 (void) sprintf(valstr, "%llu", val64);
2496 2497 } else {
2497 2498 zfs_nicenum(val64, valstr,
2498 2499 sizeof (valstr));
2499 2500 }
2500 2501 if (field == USFIELD_QUOTA &&
2501 2502 strcmp(valstr, "0") == 0)
2502 2503 strval = "none";
2503 2504 else
2504 2505 strval = valstr;
2505 2506 }
2506 2507 break;
2507 2508 }
2508 2509
2509 2510 if (!first) {
2510 2511 if (scripted)
2511 2512 (void) printf("\t");
2512 2513 else
2513 2514 (void) printf(" ");
2514 2515 }
2515 2516 if (scripted)
2516 2517 (void) printf("%s", strval);
2517 2518 else if (field == USFIELD_TYPE || field == USFIELD_NAME)
2518 2519 (void) printf("%-*s", width[field], strval);
2519 2520 else
2520 2521 (void) printf("%*s", width[field], strval);
2521 2522
2522 2523 first = B_FALSE;
2523 2524 cfield++;
2524 2525 }
2525 2526
2526 2527 (void) printf("\n");
2527 2528 }
2528 2529
2529 2530 static void
2530 2531 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types,
2531 2532 size_t *width, boolean_t rmnode, uu_avl_t *avl)
2532 2533 {
2533 2534 us_node_t *node;
2534 2535 const char *col;
2535 2536 int cfield = 0;
2536 2537 int field;
2537 2538
2538 2539 if (!scripted) {
2539 2540 boolean_t first = B_TRUE;
2540 2541
2541 2542 while ((field = fields[cfield]) != USFIELD_LAST) {
2542 2543 col = gettext(us_field_hdr[field]);
2543 2544 if (field == USFIELD_TYPE || field == USFIELD_NAME) {
2544 2545 (void) printf(first ? "%-*s" : " %-*s",
2545 2546 width[field], col);
2546 2547 } else {
2547 2548 (void) printf(first ? "%*s" : " %*s",
2548 2549 width[field], col);
2549 2550 }
2550 2551 first = B_FALSE;
2551 2552 cfield++;
2552 2553 }
2553 2554 (void) printf("\n");
2554 2555 }
2555 2556
2556 2557 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) {
2557 2558 print_us_node(scripted, parsable, fields, types, width, node);
2558 2559 if (rmnode)
2559 2560 nvlist_free(node->usn_nvl);
2560 2561 }
2561 2562 }
2562 2563
2563 2564 static int
2564 2565 zfs_do_userspace(int argc, char **argv)
2565 2566 {
2566 2567 zfs_handle_t *zhp;
2567 2568 zfs_userquota_prop_t p;
2568 2569 uu_avl_pool_t *avl_pool;
2569 2570 uu_avl_t *avl_tree;
2570 2571 uu_avl_walk_t *walk;
2571 2572 char *delim;
2572 2573 char deffields[] = "type,name,used,quota";
2573 2574 char *ofield = NULL;
2574 2575 char *tfield = NULL;
2575 2576 int cfield = 0;
2576 2577 int fields[256];
2577 2578 int i;
2578 2579 boolean_t scripted = B_FALSE;
2579 2580 boolean_t prtnum = B_FALSE;
2580 2581 boolean_t parsable = B_FALSE;
2581 2582 boolean_t sid2posix = B_FALSE;
2582 2583 int ret = 0;
2583 2584 int c;
2584 2585 zfs_sort_column_t *sortcol = NULL;
2585 2586 int types = USTYPE_PSX_USR | USTYPE_SMB_USR;
2586 2587 us_cbdata_t cb;
2587 2588 us_node_t *node;
2588 2589 us_node_t *rmnode;
2589 2590 uu_list_pool_t *listpool;
2590 2591 uu_list_t *list;
2591 2592 uu_avl_index_t idx = 0;
2592 2593 uu_list_index_t idx2 = 0;
2593 2594
2594 2595 if (argc < 2)
2595 2596 usage(B_FALSE);
2596 2597
2597 2598 if (strcmp(argv[0], "groupspace") == 0)
2598 2599 /* Toggle default group types */
2599 2600 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP;
2600 2601
2601 2602 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) {
2602 2603 switch (c) {
2603 2604 case 'n':
2604 2605 prtnum = B_TRUE;
2605 2606 break;
2606 2607 case 'H':
2607 2608 scripted = B_TRUE;
2608 2609 break;
2609 2610 case 'p':
2610 2611 parsable = B_TRUE;
2611 2612 break;
2612 2613 case 'o':
2613 2614 ofield = optarg;
2614 2615 break;
2615 2616 case 's':
2616 2617 case 'S':
2617 2618 if (zfs_add_sort_column(&sortcol, optarg,
2618 2619 c == 's' ? B_FALSE : B_TRUE) != 0) {
2619 2620 (void) fprintf(stderr,
2620 2621 gettext("invalid field '%s'\n"), optarg);
2621 2622 usage(B_FALSE);
2622 2623 }
2623 2624 break;
2624 2625 case 't':
2625 2626 tfield = optarg;
2626 2627 break;
2627 2628 case 'i':
2628 2629 sid2posix = B_TRUE;
2629 2630 break;
2630 2631 case ':':
2631 2632 (void) fprintf(stderr, gettext("missing argument for "
2632 2633 "'%c' option\n"), optopt);
2633 2634 usage(B_FALSE);
2634 2635 break;
2635 2636 case '?':
2636 2637 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2637 2638 optopt);
2638 2639 usage(B_FALSE);
2639 2640 }
2640 2641 }
2641 2642
2642 2643 argc -= optind;
2643 2644 argv += optind;
2644 2645
2645 2646 if (argc < 1) {
2646 2647 (void) fprintf(stderr, gettext("missing dataset name\n"));
2647 2648 usage(B_FALSE);
2648 2649 }
2649 2650 if (argc > 1) {
2650 2651 (void) fprintf(stderr, gettext("too many arguments\n"));
2651 2652 usage(B_FALSE);
2652 2653 }
2653 2654
2654 2655 /* Use default output fields if not specified using -o */
2655 2656 if (ofield == NULL)
2656 2657 ofield = deffields;
2657 2658 do {
2658 2659 if ((delim = strchr(ofield, ',')) != NULL)
2659 2660 *delim = '\0';
2660 2661 if ((fields[cfield++] = us_field_index(ofield)) == -1) {
2661 2662 (void) fprintf(stderr, gettext("invalid type '%s' "
2662 2663 "for -o option\n"), ofield);
2663 2664 return (-1);
2664 2665 }
2665 2666 if (delim != NULL)
2666 2667 ofield = delim + 1;
2667 2668 } while (delim != NULL);
2668 2669 fields[cfield] = USFIELD_LAST;
2669 2670
2670 2671 /* Override output types (-t option) */
2671 2672 if (tfield != NULL) {
2672 2673 types = 0;
2673 2674
2674 2675 do {
2675 2676 boolean_t found = B_FALSE;
2676 2677
2677 2678 if ((delim = strchr(tfield, ',')) != NULL)
2678 2679 *delim = '\0';
2679 2680 for (i = 0; i < sizeof (us_type_bits) / sizeof (int);
2680 2681 i++) {
2681 2682 if (strcmp(tfield, us_type_names[i]) == 0) {
2682 2683 found = B_TRUE;
2683 2684 types |= us_type_bits[i];
2684 2685 break;
2685 2686 }
2686 2687 }
2687 2688 if (!found) {
2688 2689 (void) fprintf(stderr, gettext("invalid type "
2689 2690 "'%s' for -t option\n"), tfield);
2690 2691 return (-1);
2691 2692 }
2692 2693 if (delim != NULL)
2693 2694 tfield = delim + 1;
2694 2695 } while (delim != NULL);
2695 2696 }
2696 2697
2697 2698 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL)
2698 2699 return (1);
2699 2700
2700 2701 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t),
2701 2702 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL)
2702 2703 nomem();
2703 2704 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL)
2704 2705 nomem();
2705 2706
2706 2707 /* Always add default sorting columns */
2707 2708 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE);
2708 2709 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE);
2709 2710
2710 2711 cb.cb_sortcol = sortcol;
2711 2712 cb.cb_numname = prtnum;
2712 2713 cb.cb_nicenum = !parsable;
2713 2714 cb.cb_avl_pool = avl_pool;
2714 2715 cb.cb_avl = avl_tree;
2715 2716 cb.cb_sid2posix = sid2posix;
2716 2717
2717 2718 for (i = 0; i < USFIELD_LAST; i++)
2718 2719 cb.cb_width[i] = strlen(gettext(us_field_hdr[i]));
2719 2720
2720 2721 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) {
2721 2722 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) &&
2722 2723 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) ||
2723 2724 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) &&
2724 2725 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))))
2725 2726 continue;
2726 2727 cb.cb_prop = p;
2727 2728 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0)
2728 2729 return (ret);
2729 2730 }
2730 2731
2731 2732 /* Sort the list */
2732 2733 if ((node = uu_avl_first(avl_tree)) == NULL)
2733 2734 return (0);
2734 2735
2735 2736 us_populated = B_TRUE;
2736 2737
2737 2738 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t),
2738 2739 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT);
2739 2740 list = uu_list_create(listpool, NULL, UU_DEFAULT);
2740 2741 uu_list_node_init(node, &node->usn_listnode, listpool);
2741 2742
2742 2743 while (node != NULL) {
2743 2744 rmnode = node;
2744 2745 node = uu_avl_next(avl_tree, node);
2745 2746 uu_avl_remove(avl_tree, rmnode);
2746 2747 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL)
2747 2748 uu_list_insert(list, rmnode, idx2);
2748 2749 }
2749 2750
2750 2751 for (node = uu_list_first(list); node != NULL;
2751 2752 node = uu_list_next(list, node)) {
2752 2753 us_sort_info_t sortinfo = { sortcol, cb.cb_numname };
2753 2754
2754 2755 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL)
2755 2756 uu_avl_insert(avl_tree, node, idx);
2756 2757 }
2757 2758
2758 2759 uu_list_destroy(list);
2759 2760 uu_list_pool_destroy(listpool);
2760 2761
2761 2762 /* Print and free node nvlist memory */
2762 2763 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE,
2763 2764 cb.cb_avl);
2764 2765
2765 2766 zfs_free_sort_columns(sortcol);
2766 2767
2767 2768 /* Clean up the AVL tree */
2768 2769 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL)
2769 2770 nomem();
2770 2771
2771 2772 while ((node = uu_avl_walk_next(walk)) != NULL) {
2772 2773 uu_avl_remove(cb.cb_avl, node);
2773 2774 free(node);
2774 2775 }
2775 2776
2776 2777 uu_avl_walk_end(walk);
2777 2778 uu_avl_destroy(avl_tree);
2778 2779 uu_avl_pool_destroy(avl_pool);
2779 2780
2780 2781 return (ret);
2781 2782 }
2782 2783
2783 2784 /*
2784 2785 * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...]
2785 2786 * [-s property [-s property]...] [-S property [-S property]...]
2786 2787 * <dataset> ...
2787 2788 *
2788 2789 * -r Recurse over all children
2789 2790 * -d Limit recursion by depth.
2790 2791 * -H Scripted mode; elide headers and separate columns by tabs
2791 2792 * -o Control which fields to display.
2792 2793 * -t Control which object types to display.
2793 2794 * -s Specify sort columns, descending order.
2794 2795 * -S Specify sort columns, ascending order.
2795 2796 *
2796 2797 * When given no arguments, lists all filesystems in the system.
2797 2798 * Otherwise, list the specified datasets, optionally recursing down them if
2798 2799 * '-r' is specified.
2799 2800 */
2800 2801 typedef struct list_cbdata {
2801 2802 boolean_t cb_first;
2802 2803 boolean_t cb_scripted;
2803 2804 zprop_list_t *cb_proplist;
2804 2805 } list_cbdata_t;
2805 2806
2806 2807 /*
2807 2808 * Given a list of columns to display, output appropriate headers for each one.
2808 2809 */
2809 2810 static void
2810 2811 print_header(zprop_list_t *pl)
2811 2812 {
2812 2813 char headerbuf[ZFS_MAXPROPLEN];
2813 2814 const char *header;
2814 2815 int i;
2815 2816 boolean_t first = B_TRUE;
2816 2817 boolean_t right_justify;
2817 2818
2818 2819 for (; pl != NULL; pl = pl->pl_next) {
2819 2820 if (!first) {
2820 2821 (void) printf(" ");
2821 2822 } else {
2822 2823 first = B_FALSE;
2823 2824 }
2824 2825
2825 2826 right_justify = B_FALSE;
2826 2827 if (pl->pl_prop != ZPROP_INVAL) {
2827 2828 header = zfs_prop_column_name(pl->pl_prop);
2828 2829 right_justify = zfs_prop_align_right(pl->pl_prop);
2829 2830 } else {
2830 2831 for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2831 2832 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2832 2833 headerbuf[i] = '\0';
2833 2834 header = headerbuf;
2834 2835 }
2835 2836
2836 2837 if (pl->pl_next == NULL && !right_justify)
2837 2838 (void) printf("%s", header);
2838 2839 else if (right_justify)
2839 2840 (void) printf("%*s", pl->pl_width, header);
2840 2841 else
2841 2842 (void) printf("%-*s", pl->pl_width, header);
2842 2843 }
2843 2844
2844 2845 (void) printf("\n");
2845 2846 }
2846 2847
2847 2848 /*
2848 2849 * Given a dataset and a list of fields, print out all the properties according
2849 2850 * to the described layout.
2850 2851 */
2851 2852 static void
2852 2853 print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted)
2853 2854 {
2854 2855 boolean_t first = B_TRUE;
2855 2856 char property[ZFS_MAXPROPLEN];
2856 2857 nvlist_t *userprops = zfs_get_user_props(zhp);
2857 2858 nvlist_t *propval;
2858 2859 char *propstr;
2859 2860 boolean_t right_justify;
2860 2861 int width;
2861 2862
2862 2863 for (; pl != NULL; pl = pl->pl_next) {
2863 2864 if (!first) {
2864 2865 if (scripted)
2865 2866 (void) printf("\t");
2866 2867 else
2867 2868 (void) printf(" ");
2868 2869 } else {
2869 2870 first = B_FALSE;
2870 2871 }
2871 2872
2872 2873 if (pl->pl_prop != ZPROP_INVAL) {
2873 2874 if (zfs_prop_get(zhp, pl->pl_prop, property,
2874 2875 sizeof (property), NULL, NULL, 0, B_FALSE) != 0)
2875 2876 propstr = "-";
2876 2877 else
2877 2878 propstr = property;
2878 2879
2879 2880 right_justify = zfs_prop_align_right(pl->pl_prop);
2880 2881 } else if (zfs_prop_userquota(pl->pl_user_prop)) {
2881 2882 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop,
2882 2883 property, sizeof (property), B_FALSE) != 0)
2883 2884 propstr = "-";
2884 2885 else
2885 2886 propstr = property;
2886 2887 right_justify = B_TRUE;
2887 2888 } else if (zfs_prop_written(pl->pl_user_prop)) {
2888 2889 if (zfs_prop_get_written(zhp, pl->pl_user_prop,
2889 2890 property, sizeof (property), B_FALSE) != 0)
2890 2891 propstr = "-";
2891 2892 else
2892 2893 propstr = property;
2893 2894 right_justify = B_TRUE;
2894 2895 } else {
2895 2896 if (nvlist_lookup_nvlist(userprops,
2896 2897 pl->pl_user_prop, &propval) != 0)
2897 2898 propstr = "-";
2898 2899 else
2899 2900 verify(nvlist_lookup_string(propval,
2900 2901 ZPROP_VALUE, &propstr) == 0);
2901 2902 right_justify = B_FALSE;
2902 2903 }
2903 2904
2904 2905 width = pl->pl_width;
2905 2906
2906 2907 /*
2907 2908 * If this is being called in scripted mode, or if this is the
2908 2909 * last column and it is left-justified, don't include a width
2909 2910 * format specifier.
2910 2911 */
2911 2912 if (scripted || (pl->pl_next == NULL && !right_justify))
2912 2913 (void) printf("%s", propstr);
2913 2914 else if (right_justify)
2914 2915 (void) printf("%*s", width, propstr);
2915 2916 else
2916 2917 (void) printf("%-*s", width, propstr);
2917 2918 }
2918 2919
2919 2920 (void) printf("\n");
2920 2921 }
2921 2922
2922 2923 /*
2923 2924 * Generic callback function to list a dataset or snapshot.
2924 2925 */
2925 2926 static int
2926 2927 list_callback(zfs_handle_t *zhp, void *data)
2927 2928 {
2928 2929 list_cbdata_t *cbp = data;
2929 2930
2930 2931 if (cbp->cb_first) {
2931 2932 if (!cbp->cb_scripted)
2932 2933 print_header(cbp->cb_proplist);
2933 2934 cbp->cb_first = B_FALSE;
2934 2935 }
2935 2936
2936 2937 print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted);
2937 2938
2938 2939 return (0);
2939 2940 }
2940 2941
2941 2942 static int
2942 2943 zfs_do_list(int argc, char **argv)
2943 2944 {
2944 2945 int c;
2945 2946 boolean_t scripted = B_FALSE;
2946 2947 static char default_fields[] =
2947 2948 "name,used,available,referenced,mountpoint";
2948 2949 int types = ZFS_TYPE_DATASET;
2949 2950 boolean_t types_specified = B_FALSE;
2950 2951 char *fields = NULL;
2951 2952 list_cbdata_t cb = { 0 };
2952 2953 char *value;
2953 2954 int limit = 0;
2954 2955 int ret = 0;
2955 2956 zfs_sort_column_t *sortcol = NULL;
2956 2957 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS;
2957 2958
2958 2959 /* check options */
2959 2960 while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) {
2960 2961 switch (c) {
2961 2962 case 'o':
2962 2963 fields = optarg;
2963 2964 break;
2964 2965 case 'd':
2965 2966 limit = parse_depth(optarg, &flags);
2966 2967 break;
2967 2968 case 'r':
2968 2969 flags |= ZFS_ITER_RECURSE;
2969 2970 break;
2970 2971 case 'H':
2971 2972 scripted = B_TRUE;
2972 2973 break;
2973 2974 case 's':
2974 2975 if (zfs_add_sort_column(&sortcol, optarg,
2975 2976 B_FALSE) != 0) {
2976 2977 (void) fprintf(stderr,
2977 2978 gettext("invalid property '%s'\n"), optarg);
2978 2979 usage(B_FALSE);
2979 2980 }
2980 2981 break;
2981 2982 case 'S':
2982 2983 if (zfs_add_sort_column(&sortcol, optarg,
2983 2984 B_TRUE) != 0) {
2984 2985 (void) fprintf(stderr,
2985 2986 gettext("invalid property '%s'\n"), optarg);
2986 2987 usage(B_FALSE);
2987 2988 }
2988 2989 break;
2989 2990 case 't':
2990 2991 types = 0;
2991 2992 types_specified = B_TRUE;
2992 2993 flags &= ~ZFS_ITER_PROP_LISTSNAPS;
2993 2994 while (*optarg != '\0') {
2994 2995 static char *type_subopts[] = { "filesystem",
2995 2996 "volume", "snapshot", "all", NULL };
2996 2997
2997 2998 switch (getsubopt(&optarg, type_subopts,
2998 2999 &value)) {
2999 3000 case 0:
3000 3001 types |= ZFS_TYPE_FILESYSTEM;
3001 3002 break;
3002 3003 case 1:
3003 3004 types |= ZFS_TYPE_VOLUME;
3004 3005 break;
3005 3006 case 2:
3006 3007 types |= ZFS_TYPE_SNAPSHOT;
3007 3008 break;
3008 3009 case 3:
3009 3010 types = ZFS_TYPE_DATASET;
3010 3011 break;
3011 3012
3012 3013 default:
3013 3014 (void) fprintf(stderr,
3014 3015 gettext("invalid type '%s'\n"),
3015 3016 value);
3016 3017 usage(B_FALSE);
3017 3018 }
3018 3019 }
3019 3020 break;
3020 3021 case ':':
3021 3022 (void) fprintf(stderr, gettext("missing argument for "
3022 3023 "'%c' option\n"), optopt);
3023 3024 usage(B_FALSE);
3024 3025 break;
3025 3026 case '?':
3026 3027 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3027 3028 optopt);
3028 3029 usage(B_FALSE);
3029 3030 }
3030 3031 }
3031 3032
3032 3033 argc -= optind;
3033 3034 argv += optind;
3034 3035
3035 3036 if (fields == NULL)
3036 3037 fields = default_fields;
3037 3038
3038 3039 /*
3039 3040 * If "-o space" and no types were specified, don't display snapshots.
3040 3041 */
3041 3042 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE)
3042 3043 types &= ~ZFS_TYPE_SNAPSHOT;
3043 3044
3044 3045 /*
3045 3046 * If the user specifies '-o all', the zprop_get_list() doesn't
3046 3047 * normally include the name of the dataset. For 'zfs list', we always
3047 3048 * want this property to be first.
3048 3049 */
3049 3050 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET)
3050 3051 != 0)
3051 3052 usage(B_FALSE);
3052 3053
3053 3054 cb.cb_scripted = scripted;
3054 3055 cb.cb_first = B_TRUE;
3055 3056
3056 3057 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist,
3057 3058 limit, list_callback, &cb);
3058 3059
3059 3060 zprop_free_list(cb.cb_proplist);
3060 3061 zfs_free_sort_columns(sortcol);
3061 3062
3062 3063 if (ret == 0 && cb.cb_first && !cb.cb_scripted)
3063 3064 (void) printf(gettext("no datasets available\n"));
3064 3065
3065 3066 return (ret);
3066 3067 }
3067 3068
3068 3069 /*
3069 3070 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol>
3070 3071 * zfs rename [-f] -p <fs | vol> <fs | vol>
3071 3072 * zfs rename -r <snap> <snap>
3072 3073 *
3073 3074 * Renames the given dataset to another of the same type.
3074 3075 *
3075 3076 * The '-p' flag creates all the non-existing ancestors of the target first.
3076 3077 */
3077 3078 /* ARGSUSED */
3078 3079 static int
3079 3080 zfs_do_rename(int argc, char **argv)
3080 3081 {
3081 3082 zfs_handle_t *zhp;
3082 3083 int c;
3083 3084 int ret = 0;
3084 3085 boolean_t recurse = B_FALSE;
3085 3086 boolean_t parents = B_FALSE;
3086 3087 boolean_t force_unmount = B_FALSE;
3087 3088
3088 3089 /* check options */
3089 3090 while ((c = getopt(argc, argv, "prf")) != -1) {
3090 3091 switch (c) {
3091 3092 case 'p':
3092 3093 parents = B_TRUE;
3093 3094 break;
3094 3095 case 'r':
3095 3096 recurse = B_TRUE;
3096 3097 break;
3097 3098 case 'f':
3098 3099 force_unmount = B_TRUE;
3099 3100 break;
3100 3101 case '?':
3101 3102 default:
3102 3103 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3103 3104 optopt);
3104 3105 usage(B_FALSE);
3105 3106 }
3106 3107 }
3107 3108
3108 3109 argc -= optind;
3109 3110 argv += optind;
3110 3111
3111 3112 /* check number of arguments */
3112 3113 if (argc < 1) {
3113 3114 (void) fprintf(stderr, gettext("missing source dataset "
3114 3115 "argument\n"));
3115 3116 usage(B_FALSE);
3116 3117 }
3117 3118 if (argc < 2) {
3118 3119 (void) fprintf(stderr, gettext("missing target dataset "
3119 3120 "argument\n"));
3120 3121 usage(B_FALSE);
3121 3122 }
3122 3123 if (argc > 2) {
3123 3124 (void) fprintf(stderr, gettext("too many arguments\n"));
3124 3125 usage(B_FALSE);
3125 3126 }
3126 3127
3127 3128 if (recurse && parents) {
3128 3129 (void) fprintf(stderr, gettext("-p and -r options are mutually "
3129 3130 "exclusive\n"));
3130 3131 usage(B_FALSE);
3131 3132 }
3132 3133
3133 3134 if (recurse && strchr(argv[0], '@') == 0) {
3134 3135 (void) fprintf(stderr, gettext("source dataset for recursive "
3135 3136 "rename must be a snapshot\n"));
3136 3137 usage(B_FALSE);
3137 3138 }
3138 3139
3139 3140 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM |
3140 3141 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL)
3141 3142 return (1);
3142 3143
3143 3144 /* If we were asked and the name looks good, try to create ancestors. */
3144 3145 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) &&
3145 3146 zfs_create_ancestors(g_zfs, argv[1]) != 0) {
3146 3147 zfs_close(zhp);
3147 3148 return (1);
3148 3149 }
3149 3150
3150 3151 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0);
3151 3152
3152 3153 zfs_close(zhp);
3153 3154 return (ret);
3154 3155 }
3155 3156
3156 3157 /*
3157 3158 * zfs promote <fs>
3158 3159 *
3159 3160 * Promotes the given clone fs to be the parent
3160 3161 */
3161 3162 /* ARGSUSED */
3162 3163 static int
3163 3164 zfs_do_promote(int argc, char **argv)
3164 3165 {
3165 3166 zfs_handle_t *zhp;
3166 3167 int ret = 0;
3167 3168
3168 3169 /* check options */
3169 3170 if (argc > 1 && argv[1][0] == '-') {
3170 3171 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3171 3172 argv[1][1]);
3172 3173 usage(B_FALSE);
3173 3174 }
3174 3175
3175 3176 /* check number of arguments */
3176 3177 if (argc < 2) {
3177 3178 (void) fprintf(stderr, gettext("missing clone filesystem"
3178 3179 " argument\n"));
3179 3180 usage(B_FALSE);
3180 3181 }
3181 3182 if (argc > 2) {
3182 3183 (void) fprintf(stderr, gettext("too many arguments\n"));
3183 3184 usage(B_FALSE);
3184 3185 }
3185 3186
3186 3187 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3187 3188 if (zhp == NULL)
3188 3189 return (1);
3189 3190
3190 3191 ret = (zfs_promote(zhp) != 0);
3191 3192
3192 3193
3193 3194 zfs_close(zhp);
3194 3195 return (ret);
3195 3196 }
3196 3197
3197 3198 /*
3198 3199 * zfs rollback [-rRf] <snapshot>
3199 3200 *
3200 3201 * -r Delete any intervening snapshots before doing rollback
3201 3202 * -R Delete any snapshots and their clones
3202 3203 * -f ignored for backwards compatability
3203 3204 *
3204 3205 * Given a filesystem, rollback to a specific snapshot, discarding any changes
3205 3206 * since then and making it the active dataset. If more recent snapshots exist,
3206 3207 * the command will complain unless the '-r' flag is given.
3207 3208 */
3208 3209 typedef struct rollback_cbdata {
3209 3210 uint64_t cb_create;
3210 3211 boolean_t cb_first;
3211 3212 int cb_doclones;
3212 3213 char *cb_target;
3213 3214 int cb_error;
3214 3215 boolean_t cb_recurse;
3215 3216 boolean_t cb_dependent;
3216 3217 } rollback_cbdata_t;
3217 3218
3218 3219 /*
3219 3220 * Report any snapshots more recent than the one specified. Used when '-r' is
3220 3221 * not specified. We reuse this same callback for the snapshot dependents - if
3221 3222 * 'cb_dependent' is set, then this is a dependent and we should report it
3222 3223 * without checking the transaction group.
3223 3224 */
3224 3225 static int
3225 3226 rollback_check(zfs_handle_t *zhp, void *data)
3226 3227 {
3227 3228 rollback_cbdata_t *cbp = data;
3228 3229
3229 3230 if (cbp->cb_doclones) {
3230 3231 zfs_close(zhp);
3231 3232 return (0);
3232 3233 }
3233 3234
3234 3235 if (!cbp->cb_dependent) {
3235 3236 if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 &&
3236 3237 zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
3237 3238 zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) >
3238 3239 cbp->cb_create) {
3239 3240
3240 3241 if (cbp->cb_first && !cbp->cb_recurse) {
3241 3242 (void) fprintf(stderr, gettext("cannot "
3242 3243 "rollback to '%s': more recent snapshots "
3243 3244 "exist\n"),
3244 3245 cbp->cb_target);
3245 3246 (void) fprintf(stderr, gettext("use '-r' to "
3246 3247 "force deletion of the following "
3247 3248 "snapshots:\n"));
3248 3249 cbp->cb_first = 0;
3249 3250 cbp->cb_error = 1;
3250 3251 }
3251 3252
3252 3253 if (cbp->cb_recurse) {
3253 3254 cbp->cb_dependent = B_TRUE;
3254 3255 if (zfs_iter_dependents(zhp, B_TRUE,
3255 3256 rollback_check, cbp) != 0) {
3256 3257 zfs_close(zhp);
3257 3258 return (-1);
3258 3259 }
3259 3260 cbp->cb_dependent = B_FALSE;
3260 3261 } else {
3261 3262 (void) fprintf(stderr, "%s\n",
3262 3263 zfs_get_name(zhp));
3263 3264 }
3264 3265 }
3265 3266 } else {
3266 3267 if (cbp->cb_first && cbp->cb_recurse) {
3267 3268 (void) fprintf(stderr, gettext("cannot rollback to "
3268 3269 "'%s': clones of previous snapshots exist\n"),
3269 3270 cbp->cb_target);
3270 3271 (void) fprintf(stderr, gettext("use '-R' to "
3271 3272 "force deletion of the following clones and "
3272 3273 "dependents:\n"));
3273 3274 cbp->cb_first = 0;
3274 3275 cbp->cb_error = 1;
3275 3276 }
3276 3277
3277 3278 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp));
3278 3279 }
3279 3280
3280 3281 zfs_close(zhp);
3281 3282 return (0);
3282 3283 }
3283 3284
3284 3285 static int
3285 3286 zfs_do_rollback(int argc, char **argv)
3286 3287 {
3287 3288 int ret = 0;
3288 3289 int c;
3289 3290 boolean_t force = B_FALSE;
3290 3291 rollback_cbdata_t cb = { 0 };
3291 3292 zfs_handle_t *zhp, *snap;
3292 3293 char parentname[ZFS_MAXNAMELEN];
3293 3294 char *delim;
3294 3295
3295 3296 /* check options */
3296 3297 while ((c = getopt(argc, argv, "rRf")) != -1) {
3297 3298 switch (c) {
3298 3299 case 'r':
3299 3300 cb.cb_recurse = 1;
3300 3301 break;
3301 3302 case 'R':
3302 3303 cb.cb_recurse = 1;
3303 3304 cb.cb_doclones = 1;
3304 3305 break;
3305 3306 case 'f':
3306 3307 force = B_TRUE;
3307 3308 break;
3308 3309 case '?':
3309 3310 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3310 3311 optopt);
3311 3312 usage(B_FALSE);
3312 3313 }
3313 3314 }
3314 3315
3315 3316 argc -= optind;
3316 3317 argv += optind;
3317 3318
3318 3319 /* check number of arguments */
3319 3320 if (argc < 1) {
3320 3321 (void) fprintf(stderr, gettext("missing dataset argument\n"));
3321 3322 usage(B_FALSE);
3322 3323 }
3323 3324 if (argc > 1) {
3324 3325 (void) fprintf(stderr, gettext("too many arguments\n"));
3325 3326 usage(B_FALSE);
3326 3327 }
3327 3328
3328 3329 /* open the snapshot */
3329 3330 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
3330 3331 return (1);
3331 3332
3332 3333 /* open the parent dataset */
3333 3334 (void) strlcpy(parentname, argv[0], sizeof (parentname));
3334 3335 verify((delim = strrchr(parentname, '@')) != NULL);
3335 3336 *delim = '\0';
3336 3337 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) {
3337 3338 zfs_close(snap);
3338 3339 return (1);
3339 3340 }
3340 3341
3341 3342 /*
3342 3343 * Check for more recent snapshots and/or clones based on the presence
3343 3344 * of '-r' and '-R'.
3344 3345 */
3345 3346 cb.cb_target = argv[0];
3346 3347 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
3347 3348 cb.cb_first = B_TRUE;
3348 3349 cb.cb_error = 0;
3349 3350 if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0)
3350 3351 goto out;
3351 3352
3352 3353 if ((ret = cb.cb_error) != 0)
3353 3354 goto out;
3354 3355
3355 3356 /*
3356 3357 * Rollback parent to the given snapshot.
3357 3358 */
3358 3359 ret = zfs_rollback(zhp, snap, force);
3359 3360
3360 3361 out:
3361 3362 zfs_close(snap);
3362 3363 zfs_close(zhp);
3363 3364
3364 3365 if (ret == 0)
3365 3366 return (0);
3366 3367 else
3367 3368 return (1);
3368 3369 }
3369 3370
3370 3371 /*
3371 3372 * zfs set property=value { fs | snap | vol } ...
3372 3373 *
3373 3374 * Sets the given property for all datasets specified on the command line.
3374 3375 */
3375 3376 typedef struct set_cbdata {
3376 3377 char *cb_propname;
3377 3378 char *cb_value;
3378 3379 } set_cbdata_t;
3379 3380
3380 3381 static int
3381 3382 set_callback(zfs_handle_t *zhp, void *data)
3382 3383 {
3383 3384 set_cbdata_t *cbp = data;
3384 3385
3385 3386 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) {
3386 3387 switch (libzfs_errno(g_zfs)) {
3387 3388 case EZFS_MOUNTFAILED:
3388 3389 (void) fprintf(stderr, gettext("property may be set "
3389 3390 "but unable to remount filesystem\n"));
3390 3391 break;
3391 3392 case EZFS_SHARENFSFAILED:
3392 3393 (void) fprintf(stderr, gettext("property may be set "
3393 3394 "but unable to reshare filesystem\n"));
3394 3395 break;
3395 3396 }
3396 3397 return (1);
3397 3398 }
3398 3399 return (0);
3399 3400 }
3400 3401
3401 3402 static int
3402 3403 zfs_do_set(int argc, char **argv)
3403 3404 {
3404 3405 set_cbdata_t cb;
3405 3406 int ret = 0;
3406 3407
3407 3408 /* check for options */
3408 3409 if (argc > 1 && argv[1][0] == '-') {
3409 3410 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3410 3411 argv[1][1]);
3411 3412 usage(B_FALSE);
3412 3413 }
3413 3414
3414 3415 /* check number of arguments */
3415 3416 if (argc < 2) {
3416 3417 (void) fprintf(stderr, gettext("missing property=value "
3417 3418 "argument\n"));
3418 3419 usage(B_FALSE);
3419 3420 }
3420 3421 if (argc < 3) {
3421 3422 (void) fprintf(stderr, gettext("missing dataset name\n"));
3422 3423 usage(B_FALSE);
3423 3424 }
3424 3425
3425 3426 /* validate property=value argument */
3426 3427 cb.cb_propname = argv[1];
3427 3428 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) ||
3428 3429 (cb.cb_value[1] == '\0')) {
3429 3430 (void) fprintf(stderr, gettext("missing value in "
3430 3431 "property=value argument\n"));
3431 3432 usage(B_FALSE);
3432 3433 }
3433 3434
3434 3435 *cb.cb_value = '\0';
3435 3436 cb.cb_value++;
3436 3437
3437 3438 if (*cb.cb_propname == '\0') {
3438 3439 (void) fprintf(stderr,
3439 3440 gettext("missing property in property=value argument\n"));
3440 3441 usage(B_FALSE);
3441 3442 }
3442 3443
3443 3444 ret = zfs_for_each(argc - 2, argv + 2, NULL,
3444 3445 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb);
3445 3446
3446 3447 return (ret);
3447 3448 }
3448 3449
3449 3450 typedef struct snap_cbdata {
3450 3451 nvlist_t *sd_nvl;
3451 3452 boolean_t sd_recursive;
3452 3453 const char *sd_snapname;
3453 3454 } snap_cbdata_t;
3454 3455
3455 3456 static int
3456 3457 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
3457 3458 {
3458 3459 snap_cbdata_t *sd = arg;
3459 3460 char *name;
3460 3461 int rv = 0;
3461 3462 int error;
3462 3463
3463 3464 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
3464 3465 if (error == -1)
3465 3466 nomem();
3466 3467 fnvlist_add_boolean(sd->sd_nvl, name);
3467 3468 free(name);
3468 3469
3469 3470 if (sd->sd_recursive)
3470 3471 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
3471 3472 zfs_close(zhp);
3472 3473 return (rv);
3473 3474 }
3474 3475
3475 3476 /*
3476 3477 * zfs snapshot [-r] [-o prop=value] ... <fs@snap>
3477 3478 *
3478 3479 * Creates a snapshot with the given name. While functionally equivalent to
3479 3480 * 'zfs create', it is a separate command to differentiate intent.
3480 3481 */
3481 3482 static int
3482 3483 zfs_do_snapshot(int argc, char **argv)
3483 3484 {
3484 3485 int ret = 0;
3485 3486 char c;
3486 3487 nvlist_t *props;
3487 3488 snap_cbdata_t sd = { 0 };
3488 3489 boolean_t multiple_snaps = B_FALSE;
3489 3490
3490 3491 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
3491 3492 nomem();
3492 3493 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0)
3493 3494 nomem();
3494 3495
3495 3496 /* check options */
3496 3497 while ((c = getopt(argc, argv, "ro:")) != -1) {
3497 3498 switch (c) {
3498 3499 case 'o':
3499 3500 if (parseprop(props))
3500 3501 return (1);
3501 3502 break;
3502 3503 case 'r':
3503 3504 sd.sd_recursive = B_TRUE;
3504 3505 multiple_snaps = B_TRUE;
3505 3506 break;
3506 3507 case '?':
3507 3508 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3508 3509 optopt);
3509 3510 goto usage;
3510 3511 }
3511 3512 }
3512 3513
3513 3514 argc -= optind;
3514 3515 argv += optind;
3515 3516
3516 3517 /* check number of arguments */
3517 3518 if (argc < 1) {
3518 3519 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3519 3520 goto usage;
3520 3521 }
3521 3522
3522 3523 if (argc > 1)
3523 3524 multiple_snaps = B_TRUE;
3524 3525 for (; argc > 0; argc--, argv++) {
3525 3526 char *atp;
3526 3527 zfs_handle_t *zhp;
3527 3528
3528 3529 atp = strchr(argv[0], '@');
3529 3530 if (atp == NULL)
3530 3531 goto usage;
3531 3532 *atp = '\0';
3532 3533 sd.sd_snapname = atp + 1;
3533 3534 zhp = zfs_open(g_zfs, argv[0],
3534 3535 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3535 3536 if (zhp == NULL)
3536 3537 goto usage;
3537 3538 if (zfs_snapshot_cb(zhp, &sd) != 0)
3538 3539 goto usage;
3539 3540 }
3540 3541
3541 3542 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props);
3542 3543 nvlist_free(sd.sd_nvl);
3543 3544 nvlist_free(props);
3544 3545 if (ret != 0 && multiple_snaps)
3545 3546 (void) fprintf(stderr, gettext("no snapshots were created\n"));
3546 3547 return (ret != 0);
3547 3548
3548 3549 usage:
3549 3550 nvlist_free(sd.sd_nvl);
3550 3551 nvlist_free(props);
3551 3552 usage(B_FALSE);
3552 3553 return (-1);
3553 3554 }
3554 3555
3555 3556 /*
3556 3557 * Send a backup stream to stdout.
3557 3558 */
3558 3559 static int
3559 3560 zfs_do_send(int argc, char **argv)
3560 3561 {
3561 3562 char *fromname = NULL;
3562 3563 char *toname = NULL;
3563 3564 char *cp;
3564 3565 zfs_handle_t *zhp;
3565 3566 sendflags_t flags = { 0 };
3566 3567 int c, err;
3567 3568 nvlist_t *dbgnv = NULL;
3568 3569 boolean_t extraverbose = B_FALSE;
3569 3570
3570 3571 /* check options */
3571 3572 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) {
3572 3573 switch (c) {
3573 3574 case 'i':
3574 3575 if (fromname)
3575 3576 usage(B_FALSE);
3576 3577 fromname = optarg;
3577 3578 break;
3578 3579 case 'I':
3579 3580 if (fromname)
3580 3581 usage(B_FALSE);
3581 3582 fromname = optarg;
3582 3583 flags.doall = B_TRUE;
3583 3584 break;
3584 3585 case 'R':
3585 3586 flags.replicate = B_TRUE;
3586 3587 break;
3587 3588 case 'p':
3588 3589 flags.props = B_TRUE;
3589 3590 break;
3590 3591 case 'P':
3591 3592 flags.parsable = B_TRUE;
3592 3593 flags.verbose = B_TRUE;
3593 3594 break;
3594 3595 case 'v':
3595 3596 if (flags.verbose)
3596 3597 extraverbose = B_TRUE;
3597 3598 flags.verbose = B_TRUE;
3598 3599 flags.progress = B_TRUE;
3599 3600 break;
3600 3601 case 'D':
3601 3602 flags.dedup = B_TRUE;
3602 3603 break;
3603 3604 case 'n':
3604 3605 flags.dryrun = B_TRUE;
3605 3606 break;
3606 3607 case ':':
3607 3608 (void) fprintf(stderr, gettext("missing argument for "
3608 3609 "'%c' option\n"), optopt);
3609 3610 usage(B_FALSE);
3610 3611 break;
3611 3612 case '?':
3612 3613 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3613 3614 optopt);
3614 3615 usage(B_FALSE);
3615 3616 }
3616 3617 }
3617 3618
3618 3619 argc -= optind;
3619 3620 argv += optind;
3620 3621
3621 3622 /* check number of arguments */
3622 3623 if (argc < 1) {
3623 3624 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3624 3625 usage(B_FALSE);
3625 3626 }
3626 3627 if (argc > 1) {
3627 3628 (void) fprintf(stderr, gettext("too many arguments\n"));
3628 3629 usage(B_FALSE);
3629 3630 }
3630 3631
3631 3632 if (!flags.dryrun && isatty(STDOUT_FILENO)) {
3632 3633 (void) fprintf(stderr,
3633 3634 gettext("Error: Stream can not be written to a terminal.\n"
3634 3635 "You must redirect standard output.\n"));
3635 3636 return (1);
3636 3637 }
3637 3638
3638 3639 cp = strchr(argv[0], '@');
3639 3640 if (cp == NULL) {
3640 3641 (void) fprintf(stderr,
3641 3642 gettext("argument must be a snapshot\n"));
3642 3643 usage(B_FALSE);
3643 3644 }
3644 3645 *cp = '\0';
3645 3646 toname = cp + 1;
3646 3647 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
3647 3648 if (zhp == NULL)
3648 3649 return (1);
3649 3650
3650 3651 /*
3651 3652 * If they specified the full path to the snapshot, chop off
3652 3653 * everything except the short name of the snapshot, but special
3653 3654 * case if they specify the origin.
3654 3655 */
3655 3656 if (fromname && (cp = strchr(fromname, '@')) != NULL) {
3656 3657 char origin[ZFS_MAXNAMELEN];
3657 3658 zprop_source_t src;
3658 3659
3659 3660 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
3660 3661 origin, sizeof (origin), &src, NULL, 0, B_FALSE);
3661 3662
3662 3663 if (strcmp(origin, fromname) == 0) {
3663 3664 fromname = NULL;
3664 3665 flags.fromorigin = B_TRUE;
3665 3666 } else {
3666 3667 *cp = '\0';
3667 3668 if (cp != fromname && strcmp(argv[0], fromname)) {
3668 3669 (void) fprintf(stderr,
3669 3670 gettext("incremental source must be "
3670 3671 "in same filesystem\n"));
3671 3672 usage(B_FALSE);
3672 3673 }
3673 3674 fromname = cp + 1;
3674 3675 if (strchr(fromname, '@') || strchr(fromname, '/')) {
3675 3676 (void) fprintf(stderr,
3676 3677 gettext("invalid incremental source\n"));
3677 3678 usage(B_FALSE);
3678 3679 }
3679 3680 }
3680 3681 }
3681 3682
3682 3683 if (flags.replicate && fromname == NULL)
3683 3684 flags.doall = B_TRUE;
3684 3685
3685 3686 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0,
3686 3687 extraverbose ? &dbgnv : NULL);
3687 3688
3688 3689 if (extraverbose && dbgnv != NULL) {
3689 3690 /*
3690 3691 * dump_nvlist prints to stdout, but that's been
3691 3692 * redirected to a file. Make it print to stderr
3692 3693 * instead.
3693 3694 */
3694 3695 (void) dup2(STDERR_FILENO, STDOUT_FILENO);
3695 3696 dump_nvlist(dbgnv, 0);
3696 3697 nvlist_free(dbgnv);
3697 3698 }
3698 3699 zfs_close(zhp);
3699 3700
3700 3701 return (err != 0);
3701 3702 }
3702 3703
3703 3704 /*
3704 3705 * zfs receive [-vnFu] [-d | -e] <fs@snap>
3705 3706 *
3706 3707 * Restore a backup stream from stdin.
3707 3708 */
3708 3709 static int
3709 3710 zfs_do_receive(int argc, char **argv)
3710 3711 {
3711 3712 int c, err;
3712 3713 recvflags_t flags = { 0 };
3713 3714
3714 3715 /* check options */
3715 3716 while ((c = getopt(argc, argv, ":denuvF")) != -1) {
3716 3717 switch (c) {
3717 3718 case 'd':
3718 3719 flags.isprefix = B_TRUE;
3719 3720 break;
3720 3721 case 'e':
3721 3722 flags.isprefix = B_TRUE;
3722 3723 flags.istail = B_TRUE;
3723 3724 break;
3724 3725 case 'n':
3725 3726 flags.dryrun = B_TRUE;
3726 3727 break;
3727 3728 case 'u':
3728 3729 flags.nomount = B_TRUE;
3729 3730 break;
3730 3731 case 'v':
3731 3732 flags.verbose = B_TRUE;
3732 3733 break;
3733 3734 case 'F':
3734 3735 flags.force = B_TRUE;
3735 3736 break;
3736 3737 case ':':
3737 3738 (void) fprintf(stderr, gettext("missing argument for "
3738 3739 "'%c' option\n"), optopt);
3739 3740 usage(B_FALSE);
3740 3741 break;
3741 3742 case '?':
3742 3743 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3743 3744 optopt);
3744 3745 usage(B_FALSE);
3745 3746 }
3746 3747 }
3747 3748
3748 3749 argc -= optind;
3749 3750 argv += optind;
3750 3751
3751 3752 /* check number of arguments */
3752 3753 if (argc < 1) {
3753 3754 (void) fprintf(stderr, gettext("missing snapshot argument\n"));
3754 3755 usage(B_FALSE);
3755 3756 }
3756 3757 if (argc > 1) {
3757 3758 (void) fprintf(stderr, gettext("too many arguments\n"));
3758 3759 usage(B_FALSE);
3759 3760 }
3760 3761
3761 3762 if (isatty(STDIN_FILENO)) {
3762 3763 (void) fprintf(stderr,
3763 3764 gettext("Error: Backup stream can not be read "
3764 3765 "from a terminal.\n"
3765 3766 "You must redirect standard input.\n"));
3766 3767 return (1);
3767 3768 }
3768 3769
3769 3770 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL);
3770 3771
3771 3772 return (err != 0);
3772 3773 }
3773 3774
3774 3775 /*
3775 3776 * allow/unallow stuff
3776 3777 */
3777 3778 /* copied from zfs/sys/dsl_deleg.h */
3778 3779 #define ZFS_DELEG_PERM_CREATE "create"
3779 3780 #define ZFS_DELEG_PERM_DESTROY "destroy"
3780 3781 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
3781 3782 #define ZFS_DELEG_PERM_ROLLBACK "rollback"
3782 3783 #define ZFS_DELEG_PERM_CLONE "clone"
3783 3784 #define ZFS_DELEG_PERM_PROMOTE "promote"
3784 3785 #define ZFS_DELEG_PERM_RENAME "rename"
3785 3786 #define ZFS_DELEG_PERM_MOUNT "mount"
3786 3787 #define ZFS_DELEG_PERM_SHARE "share"
3787 3788 #define ZFS_DELEG_PERM_SEND "send"
3788 3789 #define ZFS_DELEG_PERM_RECEIVE "receive"
3789 3790 #define ZFS_DELEG_PERM_ALLOW "allow"
3790 3791 #define ZFS_DELEG_PERM_USERPROP "userprop"
3791 3792 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */
3792 3793 #define ZFS_DELEG_PERM_USERQUOTA "userquota"
3793 3794 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
3794 3795 #define ZFS_DELEG_PERM_USERUSED "userused"
3795 3796 #define ZFS_DELEG_PERM_GROUPUSED "groupused"
3796 3797 #define ZFS_DELEG_PERM_HOLD "hold"
3797 3798 #define ZFS_DELEG_PERM_RELEASE "release"
3798 3799 #define ZFS_DELEG_PERM_DIFF "diff"
3799 3800
3800 3801 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE
3801 3802
3802 3803 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = {
3803 3804 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW },
3804 3805 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
3805 3806 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
3806 3807 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
3807 3808 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
3808 3809 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
3809 3810 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
3810 3811 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
3811 3812 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
3812 3813 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
3813 3814 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
3814 3815 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
3815 3816 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
3816 3817 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
3817 3818 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
3818 3819
3819 3820 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
3820 3821 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
3821 3822 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
3822 3823 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
3823 3824 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
3824 3825 { NULL, ZFS_DELEG_NOTE_NONE }
3825 3826 };
3826 3827
3827 3828 /* permission structure */
3828 3829 typedef struct deleg_perm {
3829 3830 zfs_deleg_who_type_t dp_who_type;
3830 3831 const char *dp_name;
3831 3832 boolean_t dp_local;
3832 3833 boolean_t dp_descend;
3833 3834 } deleg_perm_t;
3834 3835
3835 3836 /* */
3836 3837 typedef struct deleg_perm_node {
3837 3838 deleg_perm_t dpn_perm;
3838 3839
3839 3840 uu_avl_node_t dpn_avl_node;
3840 3841 } deleg_perm_node_t;
3841 3842
3842 3843 typedef struct fs_perm fs_perm_t;
3843 3844
3844 3845 /* permissions set */
3845 3846 typedef struct who_perm {
3846 3847 zfs_deleg_who_type_t who_type;
3847 3848 const char *who_name; /* id */
3848 3849 char who_ug_name[256]; /* user/group name */
3849 3850 fs_perm_t *who_fsperm; /* uplink */
3850 3851
3851 3852 uu_avl_t *who_deleg_perm_avl; /* permissions */
3852 3853 } who_perm_t;
3853 3854
3854 3855 /* */
3855 3856 typedef struct who_perm_node {
3856 3857 who_perm_t who_perm;
3857 3858 uu_avl_node_t who_avl_node;
3858 3859 } who_perm_node_t;
3859 3860
3860 3861 typedef struct fs_perm_set fs_perm_set_t;
3861 3862 /* fs permissions */
3862 3863 struct fs_perm {
3863 3864 const char *fsp_name;
3864 3865
3865 3866 uu_avl_t *fsp_sc_avl; /* sets,create */
3866 3867 uu_avl_t *fsp_uge_avl; /* user,group,everyone */
3867 3868
3868 3869 fs_perm_set_t *fsp_set; /* uplink */
3869 3870 };
3870 3871
3871 3872 /* */
3872 3873 typedef struct fs_perm_node {
3873 3874 fs_perm_t fspn_fsperm;
3874 3875 uu_avl_t *fspn_avl;
3875 3876
3876 3877 uu_list_node_t fspn_list_node;
3877 3878 } fs_perm_node_t;
3878 3879
3879 3880 /* top level structure */
3880 3881 struct fs_perm_set {
3881 3882 uu_list_pool_t *fsps_list_pool;
3882 3883 uu_list_t *fsps_list; /* list of fs_perms */
3883 3884
3884 3885 uu_avl_pool_t *fsps_named_set_avl_pool;
3885 3886 uu_avl_pool_t *fsps_who_perm_avl_pool;
3886 3887 uu_avl_pool_t *fsps_deleg_perm_avl_pool;
3887 3888 };
3888 3889
3889 3890 static inline const char *
3890 3891 deleg_perm_type(zfs_deleg_note_t note)
3891 3892 {
3892 3893 /* subcommands */
3893 3894 switch (note) {
3894 3895 /* SUBCOMMANDS */
3895 3896 /* OTHER */
3896 3897 case ZFS_DELEG_NOTE_GROUPQUOTA:
3897 3898 case ZFS_DELEG_NOTE_GROUPUSED:
3898 3899 case ZFS_DELEG_NOTE_USERPROP:
3899 3900 case ZFS_DELEG_NOTE_USERQUOTA:
3900 3901 case ZFS_DELEG_NOTE_USERUSED:
3901 3902 /* other */
3902 3903 return (gettext("other"));
3903 3904 default:
3904 3905 return (gettext("subcommand"));
3905 3906 }
3906 3907 }
3907 3908
3908 3909 static int inline
3909 3910 who_type2weight(zfs_deleg_who_type_t who_type)
3910 3911 {
3911 3912 int res;
3912 3913 switch (who_type) {
3913 3914 case ZFS_DELEG_NAMED_SET_SETS:
3914 3915 case ZFS_DELEG_NAMED_SET:
3915 3916 res = 0;
3916 3917 break;
3917 3918 case ZFS_DELEG_CREATE_SETS:
3918 3919 case ZFS_DELEG_CREATE:
3919 3920 res = 1;
3920 3921 break;
3921 3922 case ZFS_DELEG_USER_SETS:
3922 3923 case ZFS_DELEG_USER:
3923 3924 res = 2;
3924 3925 break;
3925 3926 case ZFS_DELEG_GROUP_SETS:
3926 3927 case ZFS_DELEG_GROUP:
3927 3928 res = 3;
3928 3929 break;
3929 3930 case ZFS_DELEG_EVERYONE_SETS:
3930 3931 case ZFS_DELEG_EVERYONE:
3931 3932 res = 4;
3932 3933 break;
3933 3934 default:
3934 3935 res = -1;
3935 3936 }
3936 3937
3937 3938 return (res);
3938 3939 }
3939 3940
3940 3941 /* ARGSUSED */
3941 3942 static int
3942 3943 who_perm_compare(const void *larg, const void *rarg, void *unused)
3943 3944 {
3944 3945 const who_perm_node_t *l = larg;
3945 3946 const who_perm_node_t *r = rarg;
3946 3947 zfs_deleg_who_type_t ltype = l->who_perm.who_type;
3947 3948 zfs_deleg_who_type_t rtype = r->who_perm.who_type;
3948 3949 int lweight = who_type2weight(ltype);
3949 3950 int rweight = who_type2weight(rtype);
3950 3951 int res = lweight - rweight;
3951 3952 if (res == 0)
3952 3953 res = strncmp(l->who_perm.who_name, r->who_perm.who_name,
3953 3954 ZFS_MAX_DELEG_NAME-1);
3954 3955
3955 3956 if (res == 0)
3956 3957 return (0);
3957 3958 if (res > 0)
3958 3959 return (1);
3959 3960 else
3960 3961 return (-1);
3961 3962 }
3962 3963
3963 3964 /* ARGSUSED */
3964 3965 static int
3965 3966 deleg_perm_compare(const void *larg, const void *rarg, void *unused)
3966 3967 {
3967 3968 const deleg_perm_node_t *l = larg;
3968 3969 const deleg_perm_node_t *r = rarg;
3969 3970 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name,
3970 3971 ZFS_MAX_DELEG_NAME-1);
3971 3972
3972 3973 if (res == 0)
3973 3974 return (0);
3974 3975
3975 3976 if (res > 0)
3976 3977 return (1);
3977 3978 else
3978 3979 return (-1);
3979 3980 }
3980 3981
3981 3982 static inline void
3982 3983 fs_perm_set_init(fs_perm_set_t *fspset)
3983 3984 {
3984 3985 bzero(fspset, sizeof (fs_perm_set_t));
3985 3986
3986 3987 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool",
3987 3988 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node),
3988 3989 NULL, UU_DEFAULT)) == NULL)
3989 3990 nomem();
3990 3991 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL,
3991 3992 UU_DEFAULT)) == NULL)
3992 3993 nomem();
3993 3994
3994 3995 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create(
3995 3996 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof(
3996 3997 who_perm_node_t, who_avl_node), who_perm_compare,
3997 3998 UU_DEFAULT)) == NULL)
3998 3999 nomem();
3999 4000
4000 4001 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create(
4001 4002 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof(
4002 4003 who_perm_node_t, who_avl_node), who_perm_compare,
4003 4004 UU_DEFAULT)) == NULL)
4004 4005 nomem();
4005 4006
4006 4007 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create(
4007 4008 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof(
4008 4009 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT))
4009 4010 == NULL)
4010 4011 nomem();
4011 4012 }
4012 4013
4013 4014 static inline void fs_perm_fini(fs_perm_t *);
4014 4015 static inline void who_perm_fini(who_perm_t *);
4015 4016
4016 4017 static inline void
4017 4018 fs_perm_set_fini(fs_perm_set_t *fspset)
4018 4019 {
4019 4020 fs_perm_node_t *node = uu_list_first(fspset->fsps_list);
4020 4021
4021 4022 while (node != NULL) {
4022 4023 fs_perm_node_t *next_node =
4023 4024 uu_list_next(fspset->fsps_list, node);
4024 4025 fs_perm_t *fsperm = &node->fspn_fsperm;
4025 4026 fs_perm_fini(fsperm);
4026 4027 uu_list_remove(fspset->fsps_list, node);
4027 4028 free(node);
4028 4029 node = next_node;
4029 4030 }
4030 4031
4031 4032 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool);
4032 4033 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool);
4033 4034 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool);
4034 4035 }
4035 4036
4036 4037 static inline void
4037 4038 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type,
4038 4039 const char *name)
4039 4040 {
4040 4041 deleg_perm->dp_who_type = type;
4041 4042 deleg_perm->dp_name = name;
4042 4043 }
4043 4044
4044 4045 static inline void
4045 4046 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm,
4046 4047 zfs_deleg_who_type_t type, const char *name)
4047 4048 {
4048 4049 uu_avl_pool_t *pool;
4049 4050 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool;
4050 4051
4051 4052 bzero(who_perm, sizeof (who_perm_t));
4052 4053
4053 4054 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL,
4054 4055 UU_DEFAULT)) == NULL)
4055 4056 nomem();
4056 4057
4057 4058 who_perm->who_type = type;
4058 4059 who_perm->who_name = name;
4059 4060 who_perm->who_fsperm = fsperm;
4060 4061 }
4061 4062
4062 4063 static inline void
4063 4064 who_perm_fini(who_perm_t *who_perm)
4064 4065 {
4065 4066 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl);
4066 4067
4067 4068 while (node != NULL) {
4068 4069 deleg_perm_node_t *next_node =
4069 4070 uu_avl_next(who_perm->who_deleg_perm_avl, node);
4070 4071
4071 4072 uu_avl_remove(who_perm->who_deleg_perm_avl, node);
4072 4073 free(node);
4073 4074 node = next_node;
4074 4075 }
4075 4076
4076 4077 uu_avl_destroy(who_perm->who_deleg_perm_avl);
4077 4078 }
4078 4079
4079 4080 static inline void
4080 4081 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname)
4081 4082 {
4082 4083 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool;
4083 4084 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool;
4084 4085
4085 4086 bzero(fsperm, sizeof (fs_perm_t));
4086 4087
4087 4088 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT))
4088 4089 == NULL)
4089 4090 nomem();
4090 4091
4091 4092 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT))
4092 4093 == NULL)
4093 4094 nomem();
4094 4095
4095 4096 fsperm->fsp_set = fspset;
4096 4097 fsperm->fsp_name = fsname;
4097 4098 }
4098 4099
4099 4100 static inline void
4100 4101 fs_perm_fini(fs_perm_t *fsperm)
4101 4102 {
4102 4103 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl);
4103 4104 while (node != NULL) {
4104 4105 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl,
4105 4106 node);
4106 4107 who_perm_t *who_perm = &node->who_perm;
4107 4108 who_perm_fini(who_perm);
4108 4109 uu_avl_remove(fsperm->fsp_sc_avl, node);
4109 4110 free(node);
4110 4111 node = next_node;
4111 4112 }
4112 4113
4113 4114 node = uu_avl_first(fsperm->fsp_uge_avl);
4114 4115 while (node != NULL) {
4115 4116 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl,
4116 4117 node);
4117 4118 who_perm_t *who_perm = &node->who_perm;
4118 4119 who_perm_fini(who_perm);
4119 4120 uu_avl_remove(fsperm->fsp_uge_avl, node);
4120 4121 free(node);
4121 4122 node = next_node;
4122 4123 }
4123 4124
4124 4125 uu_avl_destroy(fsperm->fsp_sc_avl);
4125 4126 uu_avl_destroy(fsperm->fsp_uge_avl);
4126 4127 }
4127 4128
4128 4129 static void inline
4129 4130 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node,
4130 4131 zfs_deleg_who_type_t who_type, const char *name, char locality)
4131 4132 {
4132 4133 uu_avl_index_t idx = 0;
4133 4134
4134 4135 deleg_perm_node_t *found_node = NULL;
4135 4136 deleg_perm_t *deleg_perm = &node->dpn_perm;
4136 4137
4137 4138 deleg_perm_init(deleg_perm, who_type, name);
4138 4139
4139 4140 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4140 4141 == NULL)
4141 4142 uu_avl_insert(avl, node, idx);
4142 4143 else {
4143 4144 node = found_node;
4144 4145 deleg_perm = &node->dpn_perm;
4145 4146 }
4146 4147
4147 4148
4148 4149 switch (locality) {
4149 4150 case ZFS_DELEG_LOCAL:
4150 4151 deleg_perm->dp_local = B_TRUE;
4151 4152 break;
4152 4153 case ZFS_DELEG_DESCENDENT:
4153 4154 deleg_perm->dp_descend = B_TRUE;
4154 4155 break;
4155 4156 case ZFS_DELEG_NA:
4156 4157 break;
4157 4158 default:
4158 4159 assert(B_FALSE); /* invalid locality */
4159 4160 }
4160 4161 }
4161 4162
4162 4163 static inline int
4163 4164 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality)
4164 4165 {
4165 4166 nvpair_t *nvp = NULL;
4166 4167 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set;
4167 4168 uu_avl_t *avl = who_perm->who_deleg_perm_avl;
4168 4169 zfs_deleg_who_type_t who_type = who_perm->who_type;
4169 4170
4170 4171 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4171 4172 const char *name = nvpair_name(nvp);
4172 4173 data_type_t type = nvpair_type(nvp);
4173 4174 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool;
4174 4175 deleg_perm_node_t *node =
4175 4176 safe_malloc(sizeof (deleg_perm_node_t));
4176 4177
4177 4178 assert(type == DATA_TYPE_BOOLEAN);
4178 4179
4179 4180 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool);
4180 4181 set_deleg_perm_node(avl, node, who_type, name, locality);
4181 4182 }
4182 4183
4183 4184 return (0);
4184 4185 }
4185 4186
4186 4187 static inline int
4187 4188 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl)
4188 4189 {
4189 4190 nvpair_t *nvp = NULL;
4190 4191 fs_perm_set_t *fspset = fsperm->fsp_set;
4191 4192
4192 4193 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4193 4194 nvlist_t *nvl2 = NULL;
4194 4195 const char *name = nvpair_name(nvp);
4195 4196 uu_avl_t *avl = NULL;
4196 4197 uu_avl_pool_t *avl_pool;
4197 4198 zfs_deleg_who_type_t perm_type = name[0];
4198 4199 char perm_locality = name[1];
4199 4200 const char *perm_name = name + 3;
4200 4201 boolean_t is_set = B_TRUE;
4201 4202 who_perm_t *who_perm = NULL;
4202 4203
4203 4204 assert('$' == name[2]);
4204 4205
4205 4206 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4206 4207 return (-1);
4207 4208
4208 4209 switch (perm_type) {
4209 4210 case ZFS_DELEG_CREATE:
4210 4211 case ZFS_DELEG_CREATE_SETS:
4211 4212 case ZFS_DELEG_NAMED_SET:
4212 4213 case ZFS_DELEG_NAMED_SET_SETS:
4213 4214 avl_pool = fspset->fsps_named_set_avl_pool;
4214 4215 avl = fsperm->fsp_sc_avl;
4215 4216 break;
4216 4217 case ZFS_DELEG_USER:
4217 4218 case ZFS_DELEG_USER_SETS:
4218 4219 case ZFS_DELEG_GROUP:
4219 4220 case ZFS_DELEG_GROUP_SETS:
4220 4221 case ZFS_DELEG_EVERYONE:
4221 4222 case ZFS_DELEG_EVERYONE_SETS:
4222 4223 avl_pool = fspset->fsps_who_perm_avl_pool;
4223 4224 avl = fsperm->fsp_uge_avl;
4224 4225 break;
4225 4226 }
4226 4227
4227 4228 if (is_set) {
4228 4229 who_perm_node_t *found_node = NULL;
4229 4230 who_perm_node_t *node = safe_malloc(
4230 4231 sizeof (who_perm_node_t));
4231 4232 who_perm = &node->who_perm;
4232 4233 uu_avl_index_t idx = 0;
4233 4234
4234 4235 uu_avl_node_init(node, &node->who_avl_node, avl_pool);
4235 4236 who_perm_init(who_perm, fsperm, perm_type, perm_name);
4236 4237
4237 4238 if ((found_node = uu_avl_find(avl, node, NULL, &idx))
4238 4239 == NULL) {
4239 4240 if (avl == fsperm->fsp_uge_avl) {
4240 4241 uid_t rid = 0;
4241 4242 struct passwd *p = NULL;
4242 4243 struct group *g = NULL;
4243 4244 const char *nice_name = NULL;
4244 4245
4245 4246 switch (perm_type) {
4246 4247 case ZFS_DELEG_USER_SETS:
4247 4248 case ZFS_DELEG_USER:
4248 4249 rid = atoi(perm_name);
4249 4250 p = getpwuid(rid);
4250 4251 if (p)
4251 4252 nice_name = p->pw_name;
4252 4253 break;
4253 4254 case ZFS_DELEG_GROUP_SETS:
4254 4255 case ZFS_DELEG_GROUP:
4255 4256 rid = atoi(perm_name);
4256 4257 g = getgrgid(rid);
4257 4258 if (g)
4258 4259 nice_name = g->gr_name;
4259 4260 break;
4260 4261 }
4261 4262
4262 4263 if (nice_name != NULL)
4263 4264 (void) strlcpy(
4264 4265 node->who_perm.who_ug_name,
4265 4266 nice_name, 256);
4266 4267 }
4267 4268
4268 4269 uu_avl_insert(avl, node, idx);
4269 4270 } else {
4270 4271 node = found_node;
4271 4272 who_perm = &node->who_perm;
4272 4273 }
4273 4274 }
4274 4275
4275 4276 (void) parse_who_perm(who_perm, nvl2, perm_locality);
4276 4277 }
4277 4278
4278 4279 return (0);
4279 4280 }
4280 4281
4281 4282 static inline int
4282 4283 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl)
4283 4284 {
4284 4285 nvpair_t *nvp = NULL;
4285 4286 uu_avl_index_t idx = 0;
4286 4287
4287 4288 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
4288 4289 nvlist_t *nvl2 = NULL;
4289 4290 const char *fsname = nvpair_name(nvp);
4290 4291 data_type_t type = nvpair_type(nvp);
4291 4292 fs_perm_t *fsperm = NULL;
4292 4293 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t));
4293 4294 if (node == NULL)
4294 4295 nomem();
4295 4296
4296 4297 fsperm = &node->fspn_fsperm;
4297 4298
4298 4299 assert(DATA_TYPE_NVLIST == type);
4299 4300
4300 4301 uu_list_node_init(node, &node->fspn_list_node,
4301 4302 fspset->fsps_list_pool);
4302 4303
4303 4304 idx = uu_list_numnodes(fspset->fsps_list);
4304 4305 fs_perm_init(fsperm, fspset, fsname);
4305 4306
4306 4307 if (nvpair_value_nvlist(nvp, &nvl2) != 0)
4307 4308 return (-1);
4308 4309
4309 4310 (void) parse_fs_perm(fsperm, nvl2);
4310 4311
4311 4312 uu_list_insert(fspset->fsps_list, node, idx);
4312 4313 }
4313 4314
4314 4315 return (0);
4315 4316 }
4316 4317
4317 4318 static inline const char *
4318 4319 deleg_perm_comment(zfs_deleg_note_t note)
4319 4320 {
4320 4321 const char *str = "";
4321 4322
4322 4323 /* subcommands */
4323 4324 switch (note) {
4324 4325 /* SUBCOMMANDS */
4325 4326 case ZFS_DELEG_NOTE_ALLOW:
4326 4327 str = gettext("Must also have the permission that is being"
4327 4328 "\n\t\t\t\tallowed");
4328 4329 break;
4329 4330 case ZFS_DELEG_NOTE_CLONE:
4330 4331 str = gettext("Must also have the 'create' ability and 'mount'"
4331 4332 "\n\t\t\t\tability in the origin file system");
4332 4333 break;
4333 4334 case ZFS_DELEG_NOTE_CREATE:
4334 4335 str = gettext("Must also have the 'mount' ability");
4335 4336 break;
4336 4337 case ZFS_DELEG_NOTE_DESTROY:
4337 4338 str = gettext("Must also have the 'mount' ability");
4338 4339 break;
4339 4340 case ZFS_DELEG_NOTE_DIFF:
4340 4341 str = gettext("Allows lookup of paths within a dataset;"
4341 4342 "\n\t\t\t\tgiven an object number. Ordinary users need this"
4342 4343 "\n\t\t\t\tin order to use zfs diff");
4343 4344 break;
4344 4345 case ZFS_DELEG_NOTE_HOLD:
4345 4346 str = gettext("Allows adding a user hold to a snapshot");
4346 4347 break;
4347 4348 case ZFS_DELEG_NOTE_MOUNT:
4348 4349 str = gettext("Allows mount/umount of ZFS datasets");
4349 4350 break;
4350 4351 case ZFS_DELEG_NOTE_PROMOTE:
4351 4352 str = gettext("Must also have the 'mount'\n\t\t\t\tand"
4352 4353 " 'promote' ability in the origin file system");
4353 4354 break;
4354 4355 case ZFS_DELEG_NOTE_RECEIVE:
4355 4356 str = gettext("Must also have the 'mount' and 'create'"
4356 4357 " ability");
4357 4358 break;
4358 4359 case ZFS_DELEG_NOTE_RELEASE:
4359 4360 str = gettext("Allows releasing a user hold which\n\t\t\t\t"
4360 4361 "might destroy the snapshot");
4361 4362 break;
4362 4363 case ZFS_DELEG_NOTE_RENAME:
4363 4364 str = gettext("Must also have the 'mount' and 'create'"
4364 4365 "\n\t\t\t\tability in the new parent");
4365 4366 break;
4366 4367 case ZFS_DELEG_NOTE_ROLLBACK:
4367 4368 str = gettext("");
4368 4369 break;
4369 4370 case ZFS_DELEG_NOTE_SEND:
4370 4371 str = gettext("");
4371 4372 break;
4372 4373 case ZFS_DELEG_NOTE_SHARE:
4373 4374 str = gettext("Allows sharing file systems over NFS or SMB"
4374 4375 "\n\t\t\t\tprotocols");
4375 4376 break;
4376 4377 case ZFS_DELEG_NOTE_SNAPSHOT:
4377 4378 str = gettext("");
4378 4379 break;
4379 4380 /*
4380 4381 * case ZFS_DELEG_NOTE_VSCAN:
4381 4382 * str = gettext("");
4382 4383 * break;
4383 4384 */
4384 4385 /* OTHER */
4385 4386 case ZFS_DELEG_NOTE_GROUPQUOTA:
4386 4387 str = gettext("Allows accessing any groupquota@... property");
4387 4388 break;
4388 4389 case ZFS_DELEG_NOTE_GROUPUSED:
4389 4390 str = gettext("Allows reading any groupused@... property");
4390 4391 break;
4391 4392 case ZFS_DELEG_NOTE_USERPROP:
4392 4393 str = gettext("Allows changing any user property");
4393 4394 break;
4394 4395 case ZFS_DELEG_NOTE_USERQUOTA:
4395 4396 str = gettext("Allows accessing any userquota@... property");
4396 4397 break;
4397 4398 case ZFS_DELEG_NOTE_USERUSED:
4398 4399 str = gettext("Allows reading any userused@... property");
4399 4400 break;
4400 4401 /* other */
4401 4402 default:
4402 4403 str = "";
4403 4404 }
4404 4405
4405 4406 return (str);
4406 4407 }
4407 4408
4408 4409 struct allow_opts {
4409 4410 boolean_t local;
4410 4411 boolean_t descend;
4411 4412 boolean_t user;
4412 4413 boolean_t group;
4413 4414 boolean_t everyone;
4414 4415 boolean_t create;
4415 4416 boolean_t set;
4416 4417 boolean_t recursive; /* unallow only */
4417 4418 boolean_t prt_usage;
4418 4419
4419 4420 boolean_t prt_perms;
4420 4421 char *who;
4421 4422 char *perms;
4422 4423 const char *dataset;
4423 4424 };
4424 4425
4425 4426 static inline int
4426 4427 prop_cmp(const void *a, const void *b)
4427 4428 {
4428 4429 const char *str1 = *(const char **)a;
4429 4430 const char *str2 = *(const char **)b;
4430 4431 return (strcmp(str1, str2));
4431 4432 }
4432 4433
4433 4434 static void
4434 4435 allow_usage(boolean_t un, boolean_t requested, const char *msg)
4435 4436 {
4436 4437 const char *opt_desc[] = {
4437 4438 "-h", gettext("show this help message and exit"),
4438 4439 "-l", gettext("set permission locally"),
4439 4440 "-d", gettext("set permission for descents"),
4440 4441 "-u", gettext("set permission for user"),
4441 4442 "-g", gettext("set permission for group"),
4442 4443 "-e", gettext("set permission for everyone"),
4443 4444 "-c", gettext("set create time permission"),
4444 4445 "-s", gettext("define permission set"),
4445 4446 /* unallow only */
4446 4447 "-r", gettext("remove permissions recursively"),
4447 4448 };
4448 4449 size_t unallow_size = sizeof (opt_desc) / sizeof (char *);
4449 4450 size_t allow_size = unallow_size - 2;
4450 4451 const char *props[ZFS_NUM_PROPS];
4451 4452 int i;
4452 4453 size_t count = 0;
4453 4454 FILE *fp = requested ? stdout : stderr;
4454 4455 zprop_desc_t *pdtbl = zfs_prop_get_table();
4455 4456 const char *fmt = gettext("%-16s %-14s\t%s\n");
4456 4457
4457 4458 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW :
4458 4459 HELP_ALLOW));
4459 4460 (void) fprintf(fp, gettext("Options:\n"));
4460 4461 for (int i = 0; i < (un ? unallow_size : allow_size); i++) {
4461 4462 const char *opt = opt_desc[i++];
4462 4463 const char *optdsc = opt_desc[i];
4463 4464 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc);
4464 4465 }
4465 4466
4466 4467 (void) fprintf(fp, gettext("\nThe following permissions are "
4467 4468 "supported:\n\n"));
4468 4469 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"),
4469 4470 gettext("NOTES"));
4470 4471 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) {
4471 4472 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm;
4472 4473 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note;
4473 4474 const char *perm_type = deleg_perm_type(perm_note);
4474 4475 const char *perm_comment = deleg_perm_comment(perm_note);
4475 4476 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment);
4476 4477 }
4477 4478
4478 4479 for (i = 0; i < ZFS_NUM_PROPS; i++) {
4479 4480 zprop_desc_t *pd = &pdtbl[i];
4480 4481 if (pd->pd_visible != B_TRUE)
4481 4482 continue;
4482 4483
4483 4484 if (pd->pd_attr == PROP_READONLY)
4484 4485 continue;
4485 4486
4486 4487 props[count++] = pd->pd_name;
4487 4488 }
4488 4489 props[count] = NULL;
4489 4490
4490 4491 qsort(props, count, sizeof (char *), prop_cmp);
4491 4492
4492 4493 for (i = 0; i < count; i++)
4493 4494 (void) fprintf(fp, fmt, props[i], gettext("property"), "");
4494 4495
4495 4496 if (msg != NULL)
4496 4497 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg);
4497 4498
4498 4499 exit(requested ? 0 : 2);
4499 4500 }
4500 4501
4501 4502 static inline const char *
4502 4503 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc,
4503 4504 char **permsp)
4504 4505 {
4505 4506 if (un && argc == expected_argc - 1)
4506 4507 *permsp = NULL;
4507 4508 else if (argc == expected_argc)
4508 4509 *permsp = argv[argc - 2];
4509 4510 else
4510 4511 allow_usage(un, B_FALSE,
4511 4512 gettext("wrong number of parameters\n"));
4512 4513
4513 4514 return (argv[argc - 1]);
4514 4515 }
4515 4516
4516 4517 static void
4517 4518 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts)
4518 4519 {
4519 4520 int uge_sum = opts->user + opts->group + opts->everyone;
4520 4521 int csuge_sum = opts->create + opts->set + uge_sum;
4521 4522 int ldcsuge_sum = csuge_sum + opts->local + opts->descend;
4522 4523 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum;
4523 4524
4524 4525 if (uge_sum > 1)
4525 4526 allow_usage(un, B_FALSE,
4526 4527 gettext("-u, -g, and -e are mutually exclusive\n"));
4527 4528
4528 4529 if (opts->prt_usage)
4529 4530 if (argc == 0 && all_sum == 0)
4530 4531 allow_usage(un, B_TRUE, NULL);
4531 4532 else
4532 4533 usage(B_FALSE);
4533 4534
4534 4535 if (opts->set) {
4535 4536 if (csuge_sum > 1)
4536 4537 allow_usage(un, B_FALSE,
4537 4538 gettext("invalid options combined with -s\n"));
4538 4539
4539 4540 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4540 4541 if (argv[0][0] != '@')
4541 4542 allow_usage(un, B_FALSE,
4542 4543 gettext("invalid set name: missing '@' prefix\n"));
4543 4544 opts->who = argv[0];
4544 4545 } else if (opts->create) {
4545 4546 if (ldcsuge_sum > 1)
4546 4547 allow_usage(un, B_FALSE,
4547 4548 gettext("invalid options combined with -c\n"));
4548 4549 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4549 4550 } else if (opts->everyone) {
4550 4551 if (csuge_sum > 1)
4551 4552 allow_usage(un, B_FALSE,
4552 4553 gettext("invalid options combined with -e\n"));
4553 4554 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4554 4555 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone")
4555 4556 == 0) {
4556 4557 opts->everyone = B_TRUE;
4557 4558 argc--;
4558 4559 argv++;
4559 4560 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms);
4560 4561 } else if (argc == 1 && !un) {
4561 4562 opts->prt_perms = B_TRUE;
4562 4563 opts->dataset = argv[argc-1];
4563 4564 } else {
4564 4565 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms);
4565 4566 opts->who = argv[0];
4566 4567 }
4567 4568
4568 4569 if (!opts->local && !opts->descend) {
4569 4570 opts->local = B_TRUE;
4570 4571 opts->descend = B_TRUE;
4571 4572 }
4572 4573 }
4573 4574
4574 4575 static void
4575 4576 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend,
4576 4577 const char *who, char *perms, nvlist_t *top_nvl)
4577 4578 {
4578 4579 int i;
4579 4580 char ld[2] = { '\0', '\0' };
4580 4581 char who_buf[ZFS_MAXNAMELEN+32];
4581 4582 char base_type;
4582 4583 char set_type;
4583 4584 nvlist_t *base_nvl = NULL;
4584 4585 nvlist_t *set_nvl = NULL;
4585 4586 nvlist_t *nvl;
4586 4587
4587 4588 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0)
4588 4589 nomem();
4589 4590 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0)
4590 4591 nomem();
4591 4592
4592 4593 switch (type) {
4593 4594 case ZFS_DELEG_NAMED_SET_SETS:
4594 4595 case ZFS_DELEG_NAMED_SET:
4595 4596 set_type = ZFS_DELEG_NAMED_SET_SETS;
4596 4597 base_type = ZFS_DELEG_NAMED_SET;
4597 4598 ld[0] = ZFS_DELEG_NA;
4598 4599 break;
4599 4600 case ZFS_DELEG_CREATE_SETS:
4600 4601 case ZFS_DELEG_CREATE:
4601 4602 set_type = ZFS_DELEG_CREATE_SETS;
4602 4603 base_type = ZFS_DELEG_CREATE;
4603 4604 ld[0] = ZFS_DELEG_NA;
4604 4605 break;
4605 4606 case ZFS_DELEG_USER_SETS:
4606 4607 case ZFS_DELEG_USER:
4607 4608 set_type = ZFS_DELEG_USER_SETS;
4608 4609 base_type = ZFS_DELEG_USER;
4609 4610 if (local)
4610 4611 ld[0] = ZFS_DELEG_LOCAL;
4611 4612 if (descend)
4612 4613 ld[1] = ZFS_DELEG_DESCENDENT;
4613 4614 break;
4614 4615 case ZFS_DELEG_GROUP_SETS:
4615 4616 case ZFS_DELEG_GROUP:
4616 4617 set_type = ZFS_DELEG_GROUP_SETS;
4617 4618 base_type = ZFS_DELEG_GROUP;
4618 4619 if (local)
4619 4620 ld[0] = ZFS_DELEG_LOCAL;
4620 4621 if (descend)
4621 4622 ld[1] = ZFS_DELEG_DESCENDENT;
4622 4623 break;
4623 4624 case ZFS_DELEG_EVERYONE_SETS:
4624 4625 case ZFS_DELEG_EVERYONE:
4625 4626 set_type = ZFS_DELEG_EVERYONE_SETS;
4626 4627 base_type = ZFS_DELEG_EVERYONE;
4627 4628 if (local)
4628 4629 ld[0] = ZFS_DELEG_LOCAL;
4629 4630 if (descend)
4630 4631 ld[1] = ZFS_DELEG_DESCENDENT;
4631 4632 }
4632 4633
4633 4634 if (perms != NULL) {
4634 4635 char *curr = perms;
4635 4636 char *end = curr + strlen(perms);
4636 4637
4637 4638 while (curr < end) {
4638 4639 char *delim = strchr(curr, ',');
4639 4640 if (delim == NULL)
4640 4641 delim = end;
4641 4642 else
4642 4643 *delim = '\0';
4643 4644
4644 4645 if (curr[0] == '@')
4645 4646 nvl = set_nvl;
4646 4647 else
4647 4648 nvl = base_nvl;
4648 4649
4649 4650 (void) nvlist_add_boolean(nvl, curr);
4650 4651 if (delim != end)
4651 4652 *delim = ',';
4652 4653 curr = delim + 1;
4653 4654 }
4654 4655
4655 4656 for (i = 0; i < 2; i++) {
4656 4657 char locality = ld[i];
4657 4658 if (locality == 0)
4658 4659 continue;
4659 4660
4660 4661 if (!nvlist_empty(base_nvl)) {
4661 4662 if (who != NULL)
4662 4663 (void) snprintf(who_buf,
4663 4664 sizeof (who_buf), "%c%c$%s",
4664 4665 base_type, locality, who);
4665 4666 else
4666 4667 (void) snprintf(who_buf,
4667 4668 sizeof (who_buf), "%c%c$",
4668 4669 base_type, locality);
4669 4670
4670 4671 (void) nvlist_add_nvlist(top_nvl, who_buf,
4671 4672 base_nvl);
4672 4673 }
4673 4674
4674 4675
4675 4676 if (!nvlist_empty(set_nvl)) {
4676 4677 if (who != NULL)
4677 4678 (void) snprintf(who_buf,
4678 4679 sizeof (who_buf), "%c%c$%s",
4679 4680 set_type, locality, who);
4680 4681 else
4681 4682 (void) snprintf(who_buf,
4682 4683 sizeof (who_buf), "%c%c$",
4683 4684 set_type, locality);
4684 4685
4685 4686 (void) nvlist_add_nvlist(top_nvl, who_buf,
4686 4687 set_nvl);
4687 4688 }
4688 4689 }
4689 4690 } else {
4690 4691 for (i = 0; i < 2; i++) {
4691 4692 char locality = ld[i];
4692 4693 if (locality == 0)
4693 4694 continue;
4694 4695
4695 4696 if (who != NULL)
4696 4697 (void) snprintf(who_buf, sizeof (who_buf),
4697 4698 "%c%c$%s", base_type, locality, who);
4698 4699 else
4699 4700 (void) snprintf(who_buf, sizeof (who_buf),
4700 4701 "%c%c$", base_type, locality);
4701 4702 (void) nvlist_add_boolean(top_nvl, who_buf);
4702 4703
4703 4704 if (who != NULL)
4704 4705 (void) snprintf(who_buf, sizeof (who_buf),
4705 4706 "%c%c$%s", set_type, locality, who);
4706 4707 else
4707 4708 (void) snprintf(who_buf, sizeof (who_buf),
4708 4709 "%c%c$", set_type, locality);
4709 4710 (void) nvlist_add_boolean(top_nvl, who_buf);
4710 4711 }
4711 4712 }
4712 4713 }
4713 4714
4714 4715 static int
4715 4716 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp)
4716 4717 {
4717 4718 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0)
4718 4719 nomem();
4719 4720
4720 4721 if (opts->set) {
4721 4722 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local,
4722 4723 opts->descend, opts->who, opts->perms, *nvlp);
4723 4724 } else if (opts->create) {
4724 4725 store_allow_perm(ZFS_DELEG_CREATE, opts->local,
4725 4726 opts->descend, NULL, opts->perms, *nvlp);
4726 4727 } else if (opts->everyone) {
4727 4728 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local,
4728 4729 opts->descend, NULL, opts->perms, *nvlp);
4729 4730 } else {
4730 4731 char *curr = opts->who;
4731 4732 char *end = curr + strlen(curr);
4732 4733
4733 4734 while (curr < end) {
4734 4735 const char *who;
4735 4736 zfs_deleg_who_type_t who_type;
4736 4737 char *endch;
4737 4738 char *delim = strchr(curr, ',');
4738 4739 char errbuf[256];
4739 4740 char id[64];
4740 4741 struct passwd *p = NULL;
4741 4742 struct group *g = NULL;
4742 4743
4743 4744 uid_t rid;
4744 4745 if (delim == NULL)
4745 4746 delim = end;
4746 4747 else
4747 4748 *delim = '\0';
4748 4749
4749 4750 rid = (uid_t)strtol(curr, &endch, 0);
4750 4751 if (opts->user) {
4751 4752 who_type = ZFS_DELEG_USER;
4752 4753 if (*endch != '\0')
4753 4754 p = getpwnam(curr);
4754 4755 else
4755 4756 p = getpwuid(rid);
4756 4757
4757 4758 if (p != NULL)
4758 4759 rid = p->pw_uid;
4759 4760 else {
4760 4761 (void) snprintf(errbuf, 256, gettext(
4761 4762 "invalid user %s"), curr);
4762 4763 allow_usage(un, B_TRUE, errbuf);
4763 4764 }
4764 4765 } else if (opts->group) {
4765 4766 who_type = ZFS_DELEG_GROUP;
4766 4767 if (*endch != '\0')
4767 4768 g = getgrnam(curr);
4768 4769 else
4769 4770 g = getgrgid(rid);
4770 4771
4771 4772 if (g != NULL)
4772 4773 rid = g->gr_gid;
4773 4774 else {
4774 4775 (void) snprintf(errbuf, 256, gettext(
4775 4776 "invalid group %s"), curr);
4776 4777 allow_usage(un, B_TRUE, errbuf);
4777 4778 }
4778 4779 } else {
4779 4780 if (*endch != '\0') {
4780 4781 p = getpwnam(curr);
4781 4782 } else {
4782 4783 p = getpwuid(rid);
4783 4784 }
4784 4785
4785 4786 if (p == NULL)
4786 4787 if (*endch != '\0') {
4787 4788 g = getgrnam(curr);
4788 4789 } else {
4789 4790 g = getgrgid(rid);
4790 4791 }
4791 4792
4792 4793 if (p != NULL) {
4793 4794 who_type = ZFS_DELEG_USER;
4794 4795 rid = p->pw_uid;
4795 4796 } else if (g != NULL) {
4796 4797 who_type = ZFS_DELEG_GROUP;
4797 4798 rid = g->gr_gid;
4798 4799 } else {
4799 4800 (void) snprintf(errbuf, 256, gettext(
4800 4801 "invalid user/group %s"), curr);
4801 4802 allow_usage(un, B_TRUE, errbuf);
4802 4803 }
4803 4804 }
4804 4805
4805 4806 (void) sprintf(id, "%u", rid);
4806 4807 who = id;
4807 4808
4808 4809 store_allow_perm(who_type, opts->local,
4809 4810 opts->descend, who, opts->perms, *nvlp);
4810 4811 curr = delim + 1;
4811 4812 }
4812 4813 }
4813 4814
4814 4815 return (0);
4815 4816 }
4816 4817
4817 4818 static void
4818 4819 print_set_creat_perms(uu_avl_t *who_avl)
4819 4820 {
4820 4821 const char *sc_title[] = {
4821 4822 gettext("Permission sets:\n"),
4822 4823 gettext("Create time permissions:\n"),
4823 4824 NULL
4824 4825 };
4825 4826 const char **title_ptr = sc_title;
4826 4827 who_perm_node_t *who_node = NULL;
4827 4828 int prev_weight = -1;
4828 4829
4829 4830 for (who_node = uu_avl_first(who_avl); who_node != NULL;
4830 4831 who_node = uu_avl_next(who_avl, who_node)) {
4831 4832 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4832 4833 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4833 4834 const char *who_name = who_node->who_perm.who_name;
4834 4835 int weight = who_type2weight(who_type);
4835 4836 boolean_t first = B_TRUE;
4836 4837 deleg_perm_node_t *deleg_node;
4837 4838
4838 4839 if (prev_weight != weight) {
4839 4840 (void) printf(*title_ptr++);
4840 4841 prev_weight = weight;
4841 4842 }
4842 4843
4843 4844 if (who_name == NULL || strnlen(who_name, 1) == 0)
4844 4845 (void) printf("\t");
4845 4846 else
4846 4847 (void) printf("\t%s ", who_name);
4847 4848
4848 4849 for (deleg_node = uu_avl_first(avl); deleg_node != NULL;
4849 4850 deleg_node = uu_avl_next(avl, deleg_node)) {
4850 4851 if (first) {
4851 4852 (void) printf("%s",
4852 4853 deleg_node->dpn_perm.dp_name);
4853 4854 first = B_FALSE;
4854 4855 } else
4855 4856 (void) printf(",%s",
4856 4857 deleg_node->dpn_perm.dp_name);
4857 4858 }
4858 4859
4859 4860 (void) printf("\n");
4860 4861 }
4861 4862 }
4862 4863
4863 4864 static void inline
4864 4865 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend,
4865 4866 const char *title)
4866 4867 {
4867 4868 who_perm_node_t *who_node = NULL;
4868 4869 boolean_t prt_title = B_TRUE;
4869 4870 uu_avl_walk_t *walk;
4870 4871
4871 4872 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL)
4872 4873 nomem();
4873 4874
4874 4875 while ((who_node = uu_avl_walk_next(walk)) != NULL) {
4875 4876 const char *who_name = who_node->who_perm.who_name;
4876 4877 const char *nice_who_name = who_node->who_perm.who_ug_name;
4877 4878 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl;
4878 4879 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type;
4879 4880 char delim = ' ';
4880 4881 deleg_perm_node_t *deleg_node;
4881 4882 boolean_t prt_who = B_TRUE;
4882 4883
4883 4884 for (deleg_node = uu_avl_first(avl);
4884 4885 deleg_node != NULL;
4885 4886 deleg_node = uu_avl_next(avl, deleg_node)) {
4886 4887 if (local != deleg_node->dpn_perm.dp_local ||
4887 4888 descend != deleg_node->dpn_perm.dp_descend)
4888 4889 continue;
4889 4890
4890 4891 if (prt_who) {
4891 4892 const char *who = NULL;
4892 4893 if (prt_title) {
4893 4894 prt_title = B_FALSE;
4894 4895 (void) printf(title);
4895 4896 }
4896 4897
4897 4898 switch (who_type) {
4898 4899 case ZFS_DELEG_USER_SETS:
4899 4900 case ZFS_DELEG_USER:
4900 4901 who = gettext("user");
4901 4902 if (nice_who_name)
4902 4903 who_name = nice_who_name;
4903 4904 break;
4904 4905 case ZFS_DELEG_GROUP_SETS:
4905 4906 case ZFS_DELEG_GROUP:
4906 4907 who = gettext("group");
4907 4908 if (nice_who_name)
4908 4909 who_name = nice_who_name;
4909 4910 break;
4910 4911 case ZFS_DELEG_EVERYONE_SETS:
4911 4912 case ZFS_DELEG_EVERYONE:
4912 4913 who = gettext("everyone");
4913 4914 who_name = NULL;
4914 4915 }
4915 4916
4916 4917 prt_who = B_FALSE;
4917 4918 if (who_name == NULL)
4918 4919 (void) printf("\t%s", who);
4919 4920 else
4920 4921 (void) printf("\t%s %s", who, who_name);
4921 4922 }
4922 4923
4923 4924 (void) printf("%c%s", delim,
4924 4925 deleg_node->dpn_perm.dp_name);
4925 4926 delim = ',';
4926 4927 }
4927 4928
4928 4929 if (!prt_who)
4929 4930 (void) printf("\n");
4930 4931 }
4931 4932
4932 4933 uu_avl_walk_end(walk);
4933 4934 }
4934 4935
4935 4936 static void
4936 4937 print_fs_perms(fs_perm_set_t *fspset)
4937 4938 {
4938 4939 fs_perm_node_t *node = NULL;
4939 4940 char buf[ZFS_MAXNAMELEN+32];
4940 4941 const char *dsname = buf;
4941 4942
4942 4943 for (node = uu_list_first(fspset->fsps_list); node != NULL;
4943 4944 node = uu_list_next(fspset->fsps_list, node)) {
4944 4945 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl;
4945 4946 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl;
4946 4947 int left = 0;
4947 4948
4948 4949 (void) snprintf(buf, ZFS_MAXNAMELEN+32,
4949 4950 gettext("---- Permissions on %s "),
4950 4951 node->fspn_fsperm.fsp_name);
4951 4952 (void) printf(dsname);
4952 4953 left = 70 - strlen(buf);
4953 4954 while (left-- > 0)
4954 4955 (void) printf("-");
4955 4956 (void) printf("\n");
4956 4957
4957 4958 print_set_creat_perms(sc_avl);
4958 4959 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE,
4959 4960 gettext("Local permissions:\n"));
4960 4961 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE,
4961 4962 gettext("Descendent permissions:\n"));
4962 4963 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE,
4963 4964 gettext("Local+Descendent permissions:\n"));
4964 4965 }
4965 4966 }
4966 4967
4967 4968 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL };
4968 4969
4969 4970 struct deleg_perms {
4970 4971 boolean_t un;
4971 4972 nvlist_t *nvl;
4972 4973 };
4973 4974
4974 4975 static int
4975 4976 set_deleg_perms(zfs_handle_t *zhp, void *data)
4976 4977 {
4977 4978 struct deleg_perms *perms = (struct deleg_perms *)data;
4978 4979 zfs_type_t zfs_type = zfs_get_type(zhp);
4979 4980
4980 4981 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME)
4981 4982 return (0);
4982 4983
4983 4984 return (zfs_set_fsacl(zhp, perms->un, perms->nvl));
4984 4985 }
4985 4986
4986 4987 static int
4987 4988 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un)
4988 4989 {
4989 4990 zfs_handle_t *zhp;
4990 4991 nvlist_t *perm_nvl = NULL;
4991 4992 nvlist_t *update_perm_nvl = NULL;
4992 4993 int error = 1;
4993 4994 int c;
4994 4995 struct allow_opts opts = { 0 };
4995 4996
4996 4997 const char *optstr = un ? "ldugecsrh" : "ldugecsh";
4997 4998
4998 4999 /* check opts */
4999 5000 while ((c = getopt(argc, argv, optstr)) != -1) {
5000 5001 switch (c) {
5001 5002 case 'l':
5002 5003 opts.local = B_TRUE;
5003 5004 break;
5004 5005 case 'd':
5005 5006 opts.descend = B_TRUE;
5006 5007 break;
5007 5008 case 'u':
5008 5009 opts.user = B_TRUE;
5009 5010 break;
5010 5011 case 'g':
5011 5012 opts.group = B_TRUE;
5012 5013 break;
5013 5014 case 'e':
5014 5015 opts.everyone = B_TRUE;
5015 5016 break;
5016 5017 case 's':
5017 5018 opts.set = B_TRUE;
5018 5019 break;
5019 5020 case 'c':
5020 5021 opts.create = B_TRUE;
5021 5022 break;
5022 5023 case 'r':
5023 5024 opts.recursive = B_TRUE;
5024 5025 break;
5025 5026 case ':':
5026 5027 (void) fprintf(stderr, gettext("missing argument for "
5027 5028 "'%c' option\n"), optopt);
5028 5029 usage(B_FALSE);
5029 5030 break;
5030 5031 case 'h':
5031 5032 opts.prt_usage = B_TRUE;
5032 5033 break;
5033 5034 case '?':
5034 5035 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5035 5036 optopt);
5036 5037 usage(B_FALSE);
5037 5038 }
5038 5039 }
5039 5040
5040 5041 argc -= optind;
5041 5042 argv += optind;
5042 5043
5043 5044 /* check arguments */
5044 5045 parse_allow_args(argc, argv, un, &opts);
5045 5046
5046 5047 /* try to open the dataset */
5047 5048 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM |
5048 5049 ZFS_TYPE_VOLUME)) == NULL) {
5049 5050 (void) fprintf(stderr, "Failed to open dataset: %s\n",
5050 5051 opts.dataset);
5051 5052 return (-1);
5052 5053 }
5053 5054
5054 5055 if (zfs_get_fsacl(zhp, &perm_nvl) != 0)
5055 5056 goto cleanup2;
5056 5057
5057 5058 fs_perm_set_init(&fs_perm_set);
5058 5059 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) {
5059 5060 (void) fprintf(stderr, "Failed to parse fsacl permissions\n");
5060 5061 goto cleanup1;
5061 5062 }
5062 5063
5063 5064 if (opts.prt_perms)
5064 5065 print_fs_perms(&fs_perm_set);
5065 5066 else {
5066 5067 (void) construct_fsacl_list(un, &opts, &update_perm_nvl);
5067 5068 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0)
5068 5069 goto cleanup0;
5069 5070
5070 5071 if (un && opts.recursive) {
5071 5072 struct deleg_perms data = { un, update_perm_nvl };
5072 5073 if (zfs_iter_filesystems(zhp, set_deleg_perms,
5073 5074 &data) != 0)
5074 5075 goto cleanup0;
5075 5076 }
5076 5077 }
5077 5078
5078 5079 error = 0;
5079 5080
5080 5081 cleanup0:
5081 5082 nvlist_free(perm_nvl);
5082 5083 if (update_perm_nvl != NULL)
5083 5084 nvlist_free(update_perm_nvl);
5084 5085 cleanup1:
5085 5086 fs_perm_set_fini(&fs_perm_set);
5086 5087 cleanup2:
5087 5088 zfs_close(zhp);
5088 5089
5089 5090 return (error);
5090 5091 }
5091 5092
5092 5093 static int
5093 5094 zfs_do_allow(int argc, char **argv)
5094 5095 {
5095 5096 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE));
5096 5097 }
5097 5098
5098 5099 static int
5099 5100 zfs_do_unallow(int argc, char **argv)
5100 5101 {
5101 5102 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE));
5102 5103 }
5103 5104
5104 5105 static int
5105 5106 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding)
5106 5107 {
5107 5108 int errors = 0;
5108 5109 int i;
5109 5110 const char *tag;
5110 5111 boolean_t recursive = B_FALSE;
5111 5112 const char *opts = holding ? "rt" : "r";
5112 5113 int c;
5113 5114
5114 5115 /* check options */
5115 5116 while ((c = getopt(argc, argv, opts)) != -1) {
5116 5117 switch (c) {
5117 5118 case 'r':
5118 5119 recursive = B_TRUE;
5119 5120 break;
5120 5121 case '?':
5121 5122 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5122 5123 optopt);
5123 5124 usage(B_FALSE);
5124 5125 }
5125 5126 }
5126 5127
5127 5128 argc -= optind;
5128 5129 argv += optind;
5129 5130
5130 5131 /* check number of arguments */
5131 5132 if (argc < 2)
5132 5133 usage(B_FALSE);
5133 5134
5134 5135 tag = argv[0];
5135 5136 --argc;
5136 5137 ++argv;
5137 5138
5138 5139 if (holding && tag[0] == '.') {
5139 5140 /* tags starting with '.' are reserved for libzfs */
5140 5141 (void) fprintf(stderr, gettext("tag may not start with '.'\n"));
5141 5142 usage(B_FALSE);
5142 5143 }
5143 5144
5144 5145 for (i = 0; i < argc; ++i) {
5145 5146 zfs_handle_t *zhp;
5146 5147 char parent[ZFS_MAXNAMELEN];
5147 5148 const char *delim;
5148 5149 char *path = argv[i];
5149 5150
5150 5151 delim = strchr(path, '@');
5151 5152 if (delim == NULL) {
5152 5153 (void) fprintf(stderr,
5153 5154 gettext("'%s' is not a snapshot\n"), path);
5154 5155 ++errors;
5155 5156 continue;
5156 5157 }
|
↓ open down ↓ |
5119 lines elided |
↑ open up ↑ |
5157 5158 (void) strncpy(parent, path, delim - path);
5158 5159 parent[delim - path] = '\0';
5159 5160
5160 5161 zhp = zfs_open(g_zfs, parent,
5161 5162 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
5162 5163 if (zhp == NULL) {
5163 5164 ++errors;
5164 5165 continue;
5165 5166 }
5166 5167 if (holding) {
5167 - if (zfs_hold(zhp, delim+1, tag, recursive,
5168 - B_FALSE, -1) != 0)
5168 + if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0)
5169 5169 ++errors;
5170 5170 } else {
5171 5171 if (zfs_release(zhp, delim+1, tag, recursive) != 0)
5172 5172 ++errors;
5173 5173 }
5174 5174 zfs_close(zhp);
5175 5175 }
5176 5176
5177 5177 return (errors != 0);
5178 5178 }
5179 5179
5180 5180 /*
5181 5181 * zfs hold [-r] [-t] <tag> <snap> ...
5182 5182 *
5183 5183 * -r Recursively hold
5184 5184 *
5185 5185 * Apply a user-hold with the given tag to the list of snapshots.
5186 5186 */
5187 5187 static int
5188 5188 zfs_do_hold(int argc, char **argv)
5189 5189 {
5190 5190 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE));
5191 5191 }
5192 5192
5193 5193 /*
5194 5194 * zfs release [-r] <tag> <snap> ...
5195 5195 *
5196 5196 * -r Recursively release
5197 5197 *
5198 5198 * Release a user-hold with the given tag from the list of snapshots.
5199 5199 */
5200 5200 static int
5201 5201 zfs_do_release(int argc, char **argv)
5202 5202 {
5203 5203 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE));
5204 5204 }
5205 5205
5206 5206 typedef struct holds_cbdata {
5207 5207 boolean_t cb_recursive;
5208 5208 const char *cb_snapname;
5209 5209 nvlist_t **cb_nvlp;
5210 5210 size_t cb_max_namelen;
5211 5211 size_t cb_max_taglen;
5212 5212 } holds_cbdata_t;
5213 5213
5214 5214 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y"
5215 5215 #define DATETIME_BUF_LEN (32)
5216 5216 /*
5217 5217 *
5218 5218 */
5219 5219 static void
5220 5220 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl)
5221 5221 {
5222 5222 int i;
5223 5223 nvpair_t *nvp = NULL;
5224 5224 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" };
5225 5225 const char *col;
5226 5226
5227 5227 if (!scripted) {
5228 5228 for (i = 0; i < 3; i++) {
5229 5229 col = gettext(hdr_cols[i]);
5230 5230 if (i < 2)
5231 5231 (void) printf("%-*s ", i ? tagwidth : nwidth,
5232 5232 col);
5233 5233 else
5234 5234 (void) printf("%s\n", col);
5235 5235 }
5236 5236 }
5237 5237
5238 5238 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5239 5239 char *zname = nvpair_name(nvp);
5240 5240 nvlist_t *nvl2;
5241 5241 nvpair_t *nvp2 = NULL;
5242 5242 (void) nvpair_value_nvlist(nvp, &nvl2);
5243 5243 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) {
5244 5244 char tsbuf[DATETIME_BUF_LEN];
5245 5245 char *tagname = nvpair_name(nvp2);
5246 5246 uint64_t val = 0;
5247 5247 time_t time;
5248 5248 struct tm t;
5249 5249 char sep = scripted ? '\t' : ' ';
5250 5250 size_t sepnum = scripted ? 1 : 2;
5251 5251
5252 5252 (void) nvpair_value_uint64(nvp2, &val);
5253 5253 time = (time_t)val;
5254 5254 (void) localtime_r(&time, &t);
5255 5255 (void) strftime(tsbuf, DATETIME_BUF_LEN,
5256 5256 gettext(STRFTIME_FMT_STR), &t);
5257 5257
5258 5258 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname,
5259 5259 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf);
5260 5260 }
5261 5261 }
5262 5262 }
5263 5263
5264 5264 /*
5265 5265 * Generic callback function to list a dataset or snapshot.
5266 5266 */
5267 5267 static int
5268 5268 holds_callback(zfs_handle_t *zhp, void *data)
5269 5269 {
5270 5270 holds_cbdata_t *cbp = data;
5271 5271 nvlist_t *top_nvl = *cbp->cb_nvlp;
5272 5272 nvlist_t *nvl = NULL;
5273 5273 nvpair_t *nvp = NULL;
5274 5274 const char *zname = zfs_get_name(zhp);
5275 5275 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN);
5276 5276
5277 5277 if (cbp->cb_recursive) {
5278 5278 const char *snapname;
5279 5279 char *delim = strchr(zname, '@');
5280 5280 if (delim == NULL)
5281 5281 return (0);
5282 5282
5283 5283 snapname = delim + 1;
5284 5284 if (strcmp(cbp->cb_snapname, snapname))
5285 5285 return (0);
5286 5286 }
5287 5287
5288 5288 if (zfs_get_holds(zhp, &nvl) != 0)
5289 5289 return (-1);
5290 5290
5291 5291 if (znamelen > cbp->cb_max_namelen)
5292 5292 cbp->cb_max_namelen = znamelen;
5293 5293
5294 5294 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
5295 5295 const char *tag = nvpair_name(nvp);
5296 5296 size_t taglen = strnlen(tag, MAXNAMELEN);
5297 5297 if (taglen > cbp->cb_max_taglen)
5298 5298 cbp->cb_max_taglen = taglen;
5299 5299 }
5300 5300
5301 5301 return (nvlist_add_nvlist(top_nvl, zname, nvl));
5302 5302 }
5303 5303
5304 5304 /*
5305 5305 * zfs holds [-r] <snap> ...
5306 5306 *
5307 5307 * -r Recursively hold
5308 5308 */
5309 5309 static int
5310 5310 zfs_do_holds(int argc, char **argv)
5311 5311 {
5312 5312 int errors = 0;
5313 5313 int c;
5314 5314 int i;
5315 5315 boolean_t scripted = B_FALSE;
5316 5316 boolean_t recursive = B_FALSE;
5317 5317 const char *opts = "rH";
5318 5318 nvlist_t *nvl;
5319 5319
5320 5320 int types = ZFS_TYPE_SNAPSHOT;
5321 5321 holds_cbdata_t cb = { 0 };
5322 5322
5323 5323 int limit = 0;
5324 5324 int ret = 0;
5325 5325 int flags = 0;
5326 5326
5327 5327 /* check options */
5328 5328 while ((c = getopt(argc, argv, opts)) != -1) {
5329 5329 switch (c) {
5330 5330 case 'r':
5331 5331 recursive = B_TRUE;
5332 5332 break;
5333 5333 case 'H':
5334 5334 scripted = B_TRUE;
5335 5335 break;
5336 5336 case '?':
5337 5337 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5338 5338 optopt);
5339 5339 usage(B_FALSE);
5340 5340 }
5341 5341 }
5342 5342
5343 5343 if (recursive) {
5344 5344 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME;
5345 5345 flags |= ZFS_ITER_RECURSE;
5346 5346 }
5347 5347
5348 5348 argc -= optind;
5349 5349 argv += optind;
5350 5350
5351 5351 /* check number of arguments */
5352 5352 if (argc < 1)
5353 5353 usage(B_FALSE);
5354 5354
5355 5355 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
5356 5356 nomem();
5357 5357
5358 5358 for (i = 0; i < argc; ++i) {
5359 5359 char *snapshot = argv[i];
5360 5360 const char *delim;
5361 5361 const char *snapname;
5362 5362
5363 5363 delim = strchr(snapshot, '@');
5364 5364 if (delim == NULL) {
5365 5365 (void) fprintf(stderr,
5366 5366 gettext("'%s' is not a snapshot\n"), snapshot);
5367 5367 ++errors;
5368 5368 continue;
5369 5369 }
5370 5370 snapname = delim + 1;
5371 5371 if (recursive)
5372 5372 snapshot[delim - snapshot] = '\0';
5373 5373
5374 5374 cb.cb_recursive = recursive;
5375 5375 cb.cb_snapname = snapname;
5376 5376 cb.cb_nvlp = &nvl;
5377 5377
5378 5378 /*
5379 5379 * 1. collect holds data, set format options
5380 5380 */
5381 5381 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit,
5382 5382 holds_callback, &cb);
5383 5383 if (ret != 0)
5384 5384 ++errors;
5385 5385 }
5386 5386
5387 5387 /*
5388 5388 * 2. print holds data
5389 5389 */
5390 5390 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl);
5391 5391
5392 5392 if (nvlist_empty(nvl))
5393 5393 (void) printf(gettext("no datasets available\n"));
5394 5394
5395 5395 nvlist_free(nvl);
5396 5396
5397 5397 return (0 != errors);
5398 5398 }
5399 5399
5400 5400 #define CHECK_SPINNER 30
5401 5401 #define SPINNER_TIME 3 /* seconds */
5402 5402 #define MOUNT_TIME 5 /* seconds */
5403 5403
5404 5404 static int
5405 5405 get_one_dataset(zfs_handle_t *zhp, void *data)
5406 5406 {
5407 5407 static char *spin[] = { "-", "\\", "|", "/" };
5408 5408 static int spinval = 0;
5409 5409 static int spincheck = 0;
5410 5410 static time_t last_spin_time = (time_t)0;
5411 5411 get_all_cb_t *cbp = data;
5412 5412 zfs_type_t type = zfs_get_type(zhp);
5413 5413
5414 5414 if (cbp->cb_verbose) {
5415 5415 if (--spincheck < 0) {
5416 5416 time_t now = time(NULL);
5417 5417 if (last_spin_time + SPINNER_TIME < now) {
5418 5418 update_progress(spin[spinval++ % 4]);
5419 5419 last_spin_time = now;
5420 5420 }
5421 5421 spincheck = CHECK_SPINNER;
5422 5422 }
5423 5423 }
5424 5424
5425 5425 /*
5426 5426 * Interate over any nested datasets.
5427 5427 */
5428 5428 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) {
5429 5429 zfs_close(zhp);
5430 5430 return (1);
5431 5431 }
5432 5432
5433 5433 /*
5434 5434 * Skip any datasets whose type does not match.
5435 5435 */
5436 5436 if ((type & ZFS_TYPE_FILESYSTEM) == 0) {
5437 5437 zfs_close(zhp);
5438 5438 return (0);
5439 5439 }
5440 5440 libzfs_add_handle(cbp, zhp);
5441 5441 assert(cbp->cb_used <= cbp->cb_alloc);
5442 5442
5443 5443 return (0);
5444 5444 }
5445 5445
5446 5446 static void
5447 5447 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose)
5448 5448 {
5449 5449 get_all_cb_t cb = { 0 };
5450 5450 cb.cb_verbose = verbose;
5451 5451 cb.cb_getone = get_one_dataset;
5452 5452
5453 5453 if (verbose)
5454 5454 set_progress_header(gettext("Reading ZFS config"));
5455 5455 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb);
5456 5456
5457 5457 *dslist = cb.cb_handles;
5458 5458 *count = cb.cb_used;
5459 5459
5460 5460 if (verbose)
5461 5461 finish_progress(gettext("done."));
5462 5462 }
5463 5463
5464 5464 /*
5465 5465 * Generic callback for sharing or mounting filesystems. Because the code is so
5466 5466 * similar, we have a common function with an extra parameter to determine which
5467 5467 * mode we are using.
5468 5468 */
5469 5469 #define OP_SHARE 0x1
5470 5470 #define OP_MOUNT 0x2
5471 5471
5472 5472 /*
5473 5473 * Share or mount a dataset.
5474 5474 */
5475 5475 static int
5476 5476 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
5477 5477 boolean_t explicit, const char *options)
5478 5478 {
5479 5479 char mountpoint[ZFS_MAXPROPLEN];
5480 5480 char shareopts[ZFS_MAXPROPLEN];
5481 5481 char smbshareopts[ZFS_MAXPROPLEN];
5482 5482 const char *cmdname = op == OP_SHARE ? "share" : "mount";
5483 5483 struct mnttab mnt;
5484 5484 uint64_t zoned, canmount;
5485 5485 boolean_t shared_nfs, shared_smb;
5486 5486
5487 5487 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM);
5488 5488
5489 5489 /*
5490 5490 * Check to make sure we can mount/share this dataset. If we
5491 5491 * are in the global zone and the filesystem is exported to a
5492 5492 * local zone, or if we are in a local zone and the
5493 5493 * filesystem is not exported, then it is an error.
5494 5494 */
5495 5495 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
5496 5496
5497 5497 if (zoned && getzoneid() == GLOBAL_ZONEID) {
5498 5498 if (!explicit)
5499 5499 return (0);
5500 5500
5501 5501 (void) fprintf(stderr, gettext("cannot %s '%s': "
5502 5502 "dataset is exported to a local zone\n"), cmdname,
5503 5503 zfs_get_name(zhp));
5504 5504 return (1);
5505 5505
5506 5506 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) {
5507 5507 if (!explicit)
5508 5508 return (0);
5509 5509
5510 5510 (void) fprintf(stderr, gettext("cannot %s '%s': "
5511 5511 "permission denied\n"), cmdname,
5512 5512 zfs_get_name(zhp));
5513 5513 return (1);
5514 5514 }
5515 5515
5516 5516 /*
5517 5517 * Ignore any filesystems which don't apply to us. This
5518 5518 * includes those with a legacy mountpoint, or those with
5519 5519 * legacy share options.
5520 5520 */
5521 5521 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
5522 5522 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0);
5523 5523 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
5524 5524 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0);
5525 5525 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts,
5526 5526 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0);
5527 5527
5528 5528 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 &&
5529 5529 strcmp(smbshareopts, "off") == 0) {
5530 5530 if (!explicit)
5531 5531 return (0);
5532 5532
5533 5533 (void) fprintf(stderr, gettext("cannot share '%s': "
5534 5534 "legacy share\n"), zfs_get_name(zhp));
5535 5535 (void) fprintf(stderr, gettext("use share(1M) to "
5536 5536 "share this filesystem, or set "
5537 5537 "sharenfs property on\n"));
5538 5538 return (1);
5539 5539 }
5540 5540
5541 5541 /*
5542 5542 * We cannot share or mount legacy filesystems. If the
5543 5543 * shareopts is non-legacy but the mountpoint is legacy, we
5544 5544 * treat it as a legacy share.
5545 5545 */
5546 5546 if (strcmp(mountpoint, "legacy") == 0) {
5547 5547 if (!explicit)
5548 5548 return (0);
5549 5549
5550 5550 (void) fprintf(stderr, gettext("cannot %s '%s': "
5551 5551 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp));
5552 5552 (void) fprintf(stderr, gettext("use %s(1M) to "
5553 5553 "%s this filesystem\n"), cmdname, cmdname);
5554 5554 return (1);
5555 5555 }
5556 5556
5557 5557 if (strcmp(mountpoint, "none") == 0) {
5558 5558 if (!explicit)
5559 5559 return (0);
5560 5560
5561 5561 (void) fprintf(stderr, gettext("cannot %s '%s': no "
5562 5562 "mountpoint set\n"), cmdname, zfs_get_name(zhp));
5563 5563 return (1);
5564 5564 }
5565 5565
5566 5566 /*
5567 5567 * canmount explicit outcome
5568 5568 * on no pass through
5569 5569 * on yes pass through
5570 5570 * off no return 0
5571 5571 * off yes display error, return 1
5572 5572 * noauto no return 0
5573 5573 * noauto yes pass through
5574 5574 */
5575 5575 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT);
5576 5576 if (canmount == ZFS_CANMOUNT_OFF) {
5577 5577 if (!explicit)
5578 5578 return (0);
5579 5579
5580 5580 (void) fprintf(stderr, gettext("cannot %s '%s': "
5581 5581 "'canmount' property is set to 'off'\n"), cmdname,
5582 5582 zfs_get_name(zhp));
5583 5583 return (1);
5584 5584 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) {
5585 5585 return (0);
5586 5586 }
5587 5587
5588 5588 /*
5589 5589 * At this point, we have verified that the mountpoint and/or
5590 5590 * shareopts are appropriate for auto management. If the
5591 5591 * filesystem is already mounted or shared, return (failing
5592 5592 * for explicit requests); otherwise mount or share the
5593 5593 * filesystem.
5594 5594 */
5595 5595 switch (op) {
5596 5596 case OP_SHARE:
5597 5597
5598 5598 shared_nfs = zfs_is_shared_nfs(zhp, NULL);
5599 5599 shared_smb = zfs_is_shared_smb(zhp, NULL);
5600 5600
5601 5601 if (shared_nfs && shared_smb ||
5602 5602 (shared_nfs && strcmp(shareopts, "on") == 0 &&
5603 5603 strcmp(smbshareopts, "off") == 0) ||
5604 5604 (shared_smb && strcmp(smbshareopts, "on") == 0 &&
5605 5605 strcmp(shareopts, "off") == 0)) {
5606 5606 if (!explicit)
5607 5607 return (0);
5608 5608
5609 5609 (void) fprintf(stderr, gettext("cannot share "
5610 5610 "'%s': filesystem already shared\n"),
5611 5611 zfs_get_name(zhp));
5612 5612 return (1);
5613 5613 }
5614 5614
5615 5615 if (!zfs_is_mounted(zhp, NULL) &&
5616 5616 zfs_mount(zhp, NULL, 0) != 0)
5617 5617 return (1);
5618 5618
5619 5619 if (protocol == NULL) {
5620 5620 if (zfs_shareall(zhp) != 0)
5621 5621 return (1);
5622 5622 } else if (strcmp(protocol, "nfs") == 0) {
5623 5623 if (zfs_share_nfs(zhp))
5624 5624 return (1);
5625 5625 } else if (strcmp(protocol, "smb") == 0) {
5626 5626 if (zfs_share_smb(zhp))
5627 5627 return (1);
5628 5628 } else {
5629 5629 (void) fprintf(stderr, gettext("cannot share "
5630 5630 "'%s': invalid share type '%s' "
5631 5631 "specified\n"),
5632 5632 zfs_get_name(zhp), protocol);
5633 5633 return (1);
5634 5634 }
5635 5635
5636 5636 break;
5637 5637
5638 5638 case OP_MOUNT:
5639 5639 if (options == NULL)
5640 5640 mnt.mnt_mntopts = "";
5641 5641 else
5642 5642 mnt.mnt_mntopts = (char *)options;
5643 5643
5644 5644 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) &&
5645 5645 zfs_is_mounted(zhp, NULL)) {
5646 5646 if (!explicit)
5647 5647 return (0);
5648 5648
5649 5649 (void) fprintf(stderr, gettext("cannot mount "
5650 5650 "'%s': filesystem already mounted\n"),
5651 5651 zfs_get_name(zhp));
5652 5652 return (1);
5653 5653 }
5654 5654
5655 5655 if (zfs_mount(zhp, options, flags) != 0)
5656 5656 return (1);
5657 5657 break;
5658 5658 }
5659 5659
5660 5660 return (0);
5661 5661 }
5662 5662
5663 5663 /*
5664 5664 * Reports progress in the form "(current/total)". Not thread-safe.
5665 5665 */
5666 5666 static void
5667 5667 report_mount_progress(int current, int total)
5668 5668 {
5669 5669 static time_t last_progress_time = 0;
5670 5670 time_t now = time(NULL);
5671 5671 char info[32];
5672 5672
5673 5673 /* report 1..n instead of 0..n-1 */
5674 5674 ++current;
5675 5675
5676 5676 /* display header if we're here for the first time */
5677 5677 if (current == 1) {
5678 5678 set_progress_header(gettext("Mounting ZFS filesystems"));
5679 5679 } else if (current != total && last_progress_time + MOUNT_TIME >= now) {
5680 5680 /* too soon to report again */
5681 5681 return;
5682 5682 }
5683 5683
5684 5684 last_progress_time = now;
5685 5685
5686 5686 (void) sprintf(info, "(%d/%d)", current, total);
5687 5687
5688 5688 if (current == total)
5689 5689 finish_progress(info);
5690 5690 else
5691 5691 update_progress(info);
5692 5692 }
5693 5693
5694 5694 static void
5695 5695 append_options(char *mntopts, char *newopts)
5696 5696 {
5697 5697 int len = strlen(mntopts);
5698 5698
5699 5699 /* original length plus new string to append plus 1 for the comma */
5700 5700 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) {
5701 5701 (void) fprintf(stderr, gettext("the opts argument for "
5702 5702 "'%c' option is too long (more than %d chars)\n"),
5703 5703 "-o", MNT_LINE_MAX);
5704 5704 usage(B_FALSE);
5705 5705 }
5706 5706
5707 5707 if (*mntopts)
5708 5708 mntopts[len++] = ',';
5709 5709
5710 5710 (void) strcpy(&mntopts[len], newopts);
5711 5711 }
5712 5712
5713 5713 static int
5714 5714 share_mount(int op, int argc, char **argv)
5715 5715 {
5716 5716 int do_all = 0;
5717 5717 boolean_t verbose = B_FALSE;
5718 5718 int c, ret = 0;
5719 5719 char *options = NULL;
5720 5720 int flags = 0;
5721 5721
5722 5722 /* check options */
5723 5723 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
5724 5724 != -1) {
5725 5725 switch (c) {
5726 5726 case 'a':
5727 5727 do_all = 1;
5728 5728 break;
5729 5729 case 'v':
5730 5730 verbose = B_TRUE;
5731 5731 break;
5732 5732 case 'o':
5733 5733 if (*optarg == '\0') {
5734 5734 (void) fprintf(stderr, gettext("empty mount "
5735 5735 "options (-o) specified\n"));
5736 5736 usage(B_FALSE);
5737 5737 }
5738 5738
5739 5739 if (options == NULL)
5740 5740 options = safe_malloc(MNT_LINE_MAX + 1);
5741 5741
5742 5742 /* option validation is done later */
5743 5743 append_options(options, optarg);
5744 5744 break;
5745 5745
5746 5746 case 'O':
5747 5747 flags |= MS_OVERLAY;
5748 5748 break;
5749 5749 case ':':
5750 5750 (void) fprintf(stderr, gettext("missing argument for "
5751 5751 "'%c' option\n"), optopt);
5752 5752 usage(B_FALSE);
5753 5753 break;
5754 5754 case '?':
5755 5755 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5756 5756 optopt);
5757 5757 usage(B_FALSE);
5758 5758 }
5759 5759 }
5760 5760
5761 5761 argc -= optind;
5762 5762 argv += optind;
5763 5763
5764 5764 /* check number of arguments */
5765 5765 if (do_all) {
5766 5766 zfs_handle_t **dslist = NULL;
5767 5767 size_t i, count = 0;
5768 5768 char *protocol = NULL;
5769 5769
5770 5770 if (op == OP_SHARE && argc > 0) {
5771 5771 if (strcmp(argv[0], "nfs") != 0 &&
5772 5772 strcmp(argv[0], "smb") != 0) {
5773 5773 (void) fprintf(stderr, gettext("share type "
5774 5774 "must be 'nfs' or 'smb'\n"));
5775 5775 usage(B_FALSE);
5776 5776 }
5777 5777 protocol = argv[0];
5778 5778 argc--;
5779 5779 argv++;
5780 5780 }
5781 5781
5782 5782 if (argc != 0) {
5783 5783 (void) fprintf(stderr, gettext("too many arguments\n"));
5784 5784 usage(B_FALSE);
5785 5785 }
5786 5786
5787 5787 start_progress_timer();
5788 5788 get_all_datasets(&dslist, &count, verbose);
5789 5789
5790 5790 if (count == 0)
5791 5791 return (0);
5792 5792
5793 5793 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp);
5794 5794
5795 5795 for (i = 0; i < count; i++) {
5796 5796 if (verbose)
5797 5797 report_mount_progress(i, count);
5798 5798
5799 5799 if (share_mount_one(dslist[i], op, flags, protocol,
5800 5800 B_FALSE, options) != 0)
5801 5801 ret = 1;
5802 5802 zfs_close(dslist[i]);
5803 5803 }
5804 5804
5805 5805 free(dslist);
5806 5806 } else if (argc == 0) {
5807 5807 struct mnttab entry;
5808 5808
5809 5809 if ((op == OP_SHARE) || (options != NULL)) {
5810 5810 (void) fprintf(stderr, gettext("missing filesystem "
5811 5811 "argument (specify -a for all)\n"));
5812 5812 usage(B_FALSE);
5813 5813 }
5814 5814
5815 5815 /*
5816 5816 * When mount is given no arguments, go through /etc/mnttab and
5817 5817 * display any active ZFS mounts. We hide any snapshots, since
5818 5818 * they are controlled automatically.
5819 5819 */
5820 5820 rewind(mnttab_file);
5821 5821 while (getmntent(mnttab_file, &entry) == 0) {
5822 5822 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 ||
5823 5823 strchr(entry.mnt_special, '@') != NULL)
5824 5824 continue;
5825 5825
5826 5826 (void) printf("%-30s %s\n", entry.mnt_special,
5827 5827 entry.mnt_mountp);
5828 5828 }
5829 5829
5830 5830 } else {
5831 5831 zfs_handle_t *zhp;
5832 5832
5833 5833 if (argc > 1) {
5834 5834 (void) fprintf(stderr,
5835 5835 gettext("too many arguments\n"));
5836 5836 usage(B_FALSE);
5837 5837 }
5838 5838
5839 5839 if ((zhp = zfs_open(g_zfs, argv[0],
5840 5840 ZFS_TYPE_FILESYSTEM)) == NULL) {
5841 5841 ret = 1;
5842 5842 } else {
5843 5843 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE,
5844 5844 options);
5845 5845 zfs_close(zhp);
5846 5846 }
5847 5847 }
5848 5848
5849 5849 return (ret);
5850 5850 }
5851 5851
5852 5852 /*
5853 5853 * zfs mount -a [nfs]
5854 5854 * zfs mount filesystem
5855 5855 *
5856 5856 * Mount all filesystems, or mount the given filesystem.
5857 5857 */
5858 5858 static int
5859 5859 zfs_do_mount(int argc, char **argv)
5860 5860 {
5861 5861 return (share_mount(OP_MOUNT, argc, argv));
5862 5862 }
5863 5863
5864 5864 /*
5865 5865 * zfs share -a [nfs | smb]
5866 5866 * zfs share filesystem
5867 5867 *
5868 5868 * Share all filesystems, or share the given filesystem.
5869 5869 */
5870 5870 static int
5871 5871 zfs_do_share(int argc, char **argv)
5872 5872 {
5873 5873 return (share_mount(OP_SHARE, argc, argv));
5874 5874 }
5875 5875
5876 5876 typedef struct unshare_unmount_node {
5877 5877 zfs_handle_t *un_zhp;
5878 5878 char *un_mountp;
5879 5879 uu_avl_node_t un_avlnode;
5880 5880 } unshare_unmount_node_t;
5881 5881
5882 5882 /* ARGSUSED */
5883 5883 static int
5884 5884 unshare_unmount_compare(const void *larg, const void *rarg, void *unused)
5885 5885 {
5886 5886 const unshare_unmount_node_t *l = larg;
5887 5887 const unshare_unmount_node_t *r = rarg;
5888 5888
5889 5889 return (strcmp(l->un_mountp, r->un_mountp));
5890 5890 }
5891 5891
5892 5892 /*
5893 5893 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an
5894 5894 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem,
5895 5895 * and unmount it appropriately.
5896 5896 */
5897 5897 static int
5898 5898 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual)
5899 5899 {
5900 5900 zfs_handle_t *zhp;
5901 5901 int ret = 0;
5902 5902 struct stat64 statbuf;
5903 5903 struct extmnttab entry;
5904 5904 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount";
5905 5905 ino_t path_inode;
5906 5906
5907 5907 /*
5908 5908 * Search for the path in /etc/mnttab. Rather than looking for the
5909 5909 * specific path, which can be fooled by non-standard paths (i.e. ".."
5910 5910 * or "//"), we stat() the path and search for the corresponding
5911 5911 * (major,minor) device pair.
5912 5912 */
5913 5913 if (stat64(path, &statbuf) != 0) {
5914 5914 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5915 5915 cmdname, path, strerror(errno));
5916 5916 return (1);
5917 5917 }
5918 5918 path_inode = statbuf.st_ino;
5919 5919
5920 5920 /*
5921 5921 * Search for the given (major,minor) pair in the mount table.
5922 5922 */
5923 5923 rewind(mnttab_file);
5924 5924 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) {
5925 5925 if (entry.mnt_major == major(statbuf.st_dev) &&
5926 5926 entry.mnt_minor == minor(statbuf.st_dev))
5927 5927 break;
5928 5928 }
5929 5929 if (ret != 0) {
5930 5930 if (op == OP_SHARE) {
5931 5931 (void) fprintf(stderr, gettext("cannot %s '%s': not "
5932 5932 "currently mounted\n"), cmdname, path);
5933 5933 return (1);
5934 5934 }
5935 5935 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"),
5936 5936 path);
5937 5937 if ((ret = umount2(path, flags)) != 0)
5938 5938 (void) fprintf(stderr, gettext("%s: %s\n"), path,
5939 5939 strerror(errno));
5940 5940 return (ret != 0);
5941 5941 }
5942 5942
5943 5943 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
5944 5944 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS "
5945 5945 "filesystem\n"), cmdname, path);
5946 5946 return (1);
5947 5947 }
5948 5948
5949 5949 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
5950 5950 ZFS_TYPE_FILESYSTEM)) == NULL)
5951 5951 return (1);
5952 5952
5953 5953 ret = 1;
5954 5954 if (stat64(entry.mnt_mountp, &statbuf) != 0) {
5955 5955 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"),
5956 5956 cmdname, path, strerror(errno));
5957 5957 goto out;
5958 5958 } else if (statbuf.st_ino != path_inode) {
5959 5959 (void) fprintf(stderr, gettext("cannot "
5960 5960 "%s '%s': not a mountpoint\n"), cmdname, path);
5961 5961 goto out;
5962 5962 }
5963 5963
5964 5964 if (op == OP_SHARE) {
5965 5965 char nfs_mnt_prop[ZFS_MAXPROPLEN];
5966 5966 char smbshare_prop[ZFS_MAXPROPLEN];
5967 5967
5968 5968 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop,
5969 5969 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0);
5970 5970 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop,
5971 5971 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0);
5972 5972
5973 5973 if (strcmp(nfs_mnt_prop, "off") == 0 &&
5974 5974 strcmp(smbshare_prop, "off") == 0) {
5975 5975 (void) fprintf(stderr, gettext("cannot unshare "
5976 5976 "'%s': legacy share\n"), path);
5977 5977 (void) fprintf(stderr, gettext("use "
5978 5978 "unshare(1M) to unshare this filesystem\n"));
5979 5979 } else if (!zfs_is_shared(zhp)) {
5980 5980 (void) fprintf(stderr, gettext("cannot unshare '%s': "
5981 5981 "not currently shared\n"), path);
5982 5982 } else {
5983 5983 ret = zfs_unshareall_bypath(zhp, path);
5984 5984 }
5985 5985 } else {
5986 5986 char mtpt_prop[ZFS_MAXPROPLEN];
5987 5987
5988 5988 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop,
5989 5989 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0);
5990 5990
5991 5991 if (is_manual) {
5992 5992 ret = zfs_unmount(zhp, NULL, flags);
5993 5993 } else if (strcmp(mtpt_prop, "legacy") == 0) {
5994 5994 (void) fprintf(stderr, gettext("cannot unmount "
5995 5995 "'%s': legacy mountpoint\n"),
5996 5996 zfs_get_name(zhp));
5997 5997 (void) fprintf(stderr, gettext("use umount(1M) "
5998 5998 "to unmount this filesystem\n"));
5999 5999 } else {
6000 6000 ret = zfs_unmountall(zhp, flags);
6001 6001 }
6002 6002 }
6003 6003
6004 6004 out:
6005 6005 zfs_close(zhp);
6006 6006
6007 6007 return (ret != 0);
6008 6008 }
6009 6009
6010 6010 /*
6011 6011 * Generic callback for unsharing or unmounting a filesystem.
6012 6012 */
6013 6013 static int
6014 6014 unshare_unmount(int op, int argc, char **argv)
6015 6015 {
6016 6016 int do_all = 0;
6017 6017 int flags = 0;
6018 6018 int ret = 0;
6019 6019 int c;
6020 6020 zfs_handle_t *zhp;
6021 6021 char nfs_mnt_prop[ZFS_MAXPROPLEN];
6022 6022 char sharesmb[ZFS_MAXPROPLEN];
6023 6023
6024 6024 /* check options */
6025 6025 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) {
6026 6026 switch (c) {
6027 6027 case 'a':
6028 6028 do_all = 1;
6029 6029 break;
6030 6030 case 'f':
6031 6031 flags = MS_FORCE;
6032 6032 break;
6033 6033 case '?':
6034 6034 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6035 6035 optopt);
6036 6036 usage(B_FALSE);
6037 6037 }
6038 6038 }
6039 6039
6040 6040 argc -= optind;
6041 6041 argv += optind;
6042 6042
6043 6043 if (do_all) {
6044 6044 /*
6045 6045 * We could make use of zfs_for_each() to walk all datasets in
6046 6046 * the system, but this would be very inefficient, especially
6047 6047 * since we would have to linearly search /etc/mnttab for each
6048 6048 * one. Instead, do one pass through /etc/mnttab looking for
6049 6049 * zfs entries and call zfs_unmount() for each one.
6050 6050 *
6051 6051 * Things get a little tricky if the administrator has created
6052 6052 * mountpoints beneath other ZFS filesystems. In this case, we
6053 6053 * have to unmount the deepest filesystems first. To accomplish
6054 6054 * this, we place all the mountpoints in an AVL tree sorted by
6055 6055 * the special type (dataset name), and walk the result in
6056 6056 * reverse to make sure to get any snapshots first.
6057 6057 */
6058 6058 struct mnttab entry;
6059 6059 uu_avl_pool_t *pool;
6060 6060 uu_avl_t *tree;
6061 6061 unshare_unmount_node_t *node;
6062 6062 uu_avl_index_t idx;
6063 6063 uu_avl_walk_t *walk;
6064 6064
6065 6065 if (argc != 0) {
6066 6066 (void) fprintf(stderr, gettext("too many arguments\n"));
6067 6067 usage(B_FALSE);
6068 6068 }
6069 6069
6070 6070 if (((pool = uu_avl_pool_create("unmount_pool",
6071 6071 sizeof (unshare_unmount_node_t),
6072 6072 offsetof(unshare_unmount_node_t, un_avlnode),
6073 6073 unshare_unmount_compare, UU_DEFAULT)) == NULL) ||
6074 6074 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL))
6075 6075 nomem();
6076 6076
6077 6077 rewind(mnttab_file);
6078 6078 while (getmntent(mnttab_file, &entry) == 0) {
6079 6079
6080 6080 /* ignore non-ZFS entries */
6081 6081 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
6082 6082 continue;
6083 6083
6084 6084 /* ignore snapshots */
6085 6085 if (strchr(entry.mnt_special, '@') != NULL)
6086 6086 continue;
6087 6087
6088 6088 if ((zhp = zfs_open(g_zfs, entry.mnt_special,
6089 6089 ZFS_TYPE_FILESYSTEM)) == NULL) {
6090 6090 ret = 1;
6091 6091 continue;
6092 6092 }
6093 6093
6094 6094 switch (op) {
6095 6095 case OP_SHARE:
6096 6096 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6097 6097 nfs_mnt_prop,
6098 6098 sizeof (nfs_mnt_prop),
6099 6099 NULL, NULL, 0, B_FALSE) == 0);
6100 6100 if (strcmp(nfs_mnt_prop, "off") != 0)
6101 6101 break;
6102 6102 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6103 6103 nfs_mnt_prop,
6104 6104 sizeof (nfs_mnt_prop),
6105 6105 NULL, NULL, 0, B_FALSE) == 0);
6106 6106 if (strcmp(nfs_mnt_prop, "off") == 0)
6107 6107 continue;
6108 6108 break;
6109 6109 case OP_MOUNT:
6110 6110 /* Ignore legacy mounts */
6111 6111 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
6112 6112 nfs_mnt_prop,
6113 6113 sizeof (nfs_mnt_prop),
6114 6114 NULL, NULL, 0, B_FALSE) == 0);
6115 6115 if (strcmp(nfs_mnt_prop, "legacy") == 0)
6116 6116 continue;
6117 6117 /* Ignore canmount=noauto mounts */
6118 6118 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) ==
6119 6119 ZFS_CANMOUNT_NOAUTO)
6120 6120 continue;
6121 6121 default:
6122 6122 break;
6123 6123 }
6124 6124
6125 6125 node = safe_malloc(sizeof (unshare_unmount_node_t));
6126 6126 node->un_zhp = zhp;
6127 6127 node->un_mountp = safe_strdup(entry.mnt_mountp);
6128 6128
6129 6129 uu_avl_node_init(node, &node->un_avlnode, pool);
6130 6130
6131 6131 if (uu_avl_find(tree, node, NULL, &idx) == NULL) {
6132 6132 uu_avl_insert(tree, node, idx);
6133 6133 } else {
6134 6134 zfs_close(node->un_zhp);
6135 6135 free(node->un_mountp);
6136 6136 free(node);
6137 6137 }
6138 6138 }
6139 6139
6140 6140 /*
6141 6141 * Walk the AVL tree in reverse, unmounting each filesystem and
6142 6142 * removing it from the AVL tree in the process.
6143 6143 */
6144 6144 if ((walk = uu_avl_walk_start(tree,
6145 6145 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL)
6146 6146 nomem();
6147 6147
6148 6148 while ((node = uu_avl_walk_next(walk)) != NULL) {
6149 6149 uu_avl_remove(tree, node);
6150 6150
6151 6151 switch (op) {
6152 6152 case OP_SHARE:
6153 6153 if (zfs_unshareall_bypath(node->un_zhp,
6154 6154 node->un_mountp) != 0)
6155 6155 ret = 1;
6156 6156 break;
6157 6157
6158 6158 case OP_MOUNT:
6159 6159 if (zfs_unmount(node->un_zhp,
6160 6160 node->un_mountp, flags) != 0)
6161 6161 ret = 1;
6162 6162 break;
6163 6163 }
6164 6164
6165 6165 zfs_close(node->un_zhp);
6166 6166 free(node->un_mountp);
6167 6167 free(node);
6168 6168 }
6169 6169
6170 6170 uu_avl_walk_end(walk);
6171 6171 uu_avl_destroy(tree);
6172 6172 uu_avl_pool_destroy(pool);
6173 6173
6174 6174 } else {
6175 6175 if (argc != 1) {
6176 6176 if (argc == 0)
6177 6177 (void) fprintf(stderr,
6178 6178 gettext("missing filesystem argument\n"));
6179 6179 else
6180 6180 (void) fprintf(stderr,
6181 6181 gettext("too many arguments\n"));
6182 6182 usage(B_FALSE);
6183 6183 }
6184 6184
6185 6185 /*
6186 6186 * We have an argument, but it may be a full path or a ZFS
6187 6187 * filesystem. Pass full paths off to unmount_path() (shared by
6188 6188 * manual_unmount), otherwise open the filesystem and pass to
6189 6189 * zfs_unmount().
6190 6190 */
6191 6191 if (argv[0][0] == '/')
6192 6192 return (unshare_unmount_path(op, argv[0],
6193 6193 flags, B_FALSE));
6194 6194
6195 6195 if ((zhp = zfs_open(g_zfs, argv[0],
6196 6196 ZFS_TYPE_FILESYSTEM)) == NULL)
6197 6197 return (1);
6198 6198
6199 6199 verify(zfs_prop_get(zhp, op == OP_SHARE ?
6200 6200 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT,
6201 6201 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL,
6202 6202 NULL, 0, B_FALSE) == 0);
6203 6203
6204 6204 switch (op) {
6205 6205 case OP_SHARE:
6206 6206 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS,
6207 6207 nfs_mnt_prop,
6208 6208 sizeof (nfs_mnt_prop),
6209 6209 NULL, NULL, 0, B_FALSE) == 0);
6210 6210 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB,
6211 6211 sharesmb, sizeof (sharesmb), NULL, NULL,
6212 6212 0, B_FALSE) == 0);
6213 6213
6214 6214 if (strcmp(nfs_mnt_prop, "off") == 0 &&
6215 6215 strcmp(sharesmb, "off") == 0) {
6216 6216 (void) fprintf(stderr, gettext("cannot "
6217 6217 "unshare '%s': legacy share\n"),
6218 6218 zfs_get_name(zhp));
6219 6219 (void) fprintf(stderr, gettext("use "
6220 6220 "unshare(1M) to unshare this "
6221 6221 "filesystem\n"));
6222 6222 ret = 1;
6223 6223 } else if (!zfs_is_shared(zhp)) {
6224 6224 (void) fprintf(stderr, gettext("cannot "
6225 6225 "unshare '%s': not currently "
6226 6226 "shared\n"), zfs_get_name(zhp));
6227 6227 ret = 1;
6228 6228 } else if (zfs_unshareall(zhp) != 0) {
6229 6229 ret = 1;
6230 6230 }
6231 6231 break;
6232 6232
6233 6233 case OP_MOUNT:
6234 6234 if (strcmp(nfs_mnt_prop, "legacy") == 0) {
6235 6235 (void) fprintf(stderr, gettext("cannot "
6236 6236 "unmount '%s': legacy "
6237 6237 "mountpoint\n"), zfs_get_name(zhp));
6238 6238 (void) fprintf(stderr, gettext("use "
6239 6239 "umount(1M) to unmount this "
6240 6240 "filesystem\n"));
6241 6241 ret = 1;
6242 6242 } else if (!zfs_is_mounted(zhp, NULL)) {
6243 6243 (void) fprintf(stderr, gettext("cannot "
6244 6244 "unmount '%s': not currently "
6245 6245 "mounted\n"),
6246 6246 zfs_get_name(zhp));
6247 6247 ret = 1;
6248 6248 } else if (zfs_unmountall(zhp, flags) != 0) {
6249 6249 ret = 1;
6250 6250 }
6251 6251 break;
6252 6252 }
6253 6253
6254 6254 zfs_close(zhp);
6255 6255 }
6256 6256
6257 6257 return (ret);
6258 6258 }
6259 6259
6260 6260 /*
6261 6261 * zfs unmount -a
6262 6262 * zfs unmount filesystem
6263 6263 *
6264 6264 * Unmount all filesystems, or a specific ZFS filesystem.
6265 6265 */
6266 6266 static int
6267 6267 zfs_do_unmount(int argc, char **argv)
6268 6268 {
6269 6269 return (unshare_unmount(OP_MOUNT, argc, argv));
6270 6270 }
6271 6271
6272 6272 /*
6273 6273 * zfs unshare -a
6274 6274 * zfs unshare filesystem
6275 6275 *
6276 6276 * Unshare all filesystems, or a specific ZFS filesystem.
6277 6277 */
6278 6278 static int
6279 6279 zfs_do_unshare(int argc, char **argv)
6280 6280 {
6281 6281 return (unshare_unmount(OP_SHARE, argc, argv));
6282 6282 }
6283 6283
6284 6284 /*
6285 6285 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is
6286 6286 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'.
6287 6287 */
6288 6288 static int
6289 6289 manual_mount(int argc, char **argv)
6290 6290 {
6291 6291 zfs_handle_t *zhp;
6292 6292 char mountpoint[ZFS_MAXPROPLEN];
6293 6293 char mntopts[MNT_LINE_MAX] = { '\0' };
6294 6294 int ret = 0;
6295 6295 int c;
6296 6296 int flags = 0;
6297 6297 char *dataset, *path;
6298 6298
6299 6299 /* check options */
6300 6300 while ((c = getopt(argc, argv, ":mo:O")) != -1) {
6301 6301 switch (c) {
6302 6302 case 'o':
6303 6303 (void) strlcpy(mntopts, optarg, sizeof (mntopts));
6304 6304 break;
6305 6305 case 'O':
6306 6306 flags |= MS_OVERLAY;
6307 6307 break;
6308 6308 case 'm':
6309 6309 flags |= MS_NOMNTTAB;
6310 6310 break;
6311 6311 case ':':
6312 6312 (void) fprintf(stderr, gettext("missing argument for "
6313 6313 "'%c' option\n"), optopt);
6314 6314 usage(B_FALSE);
6315 6315 break;
6316 6316 case '?':
6317 6317 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6318 6318 optopt);
6319 6319 (void) fprintf(stderr, gettext("usage: mount [-o opts] "
6320 6320 "<path>\n"));
6321 6321 return (2);
6322 6322 }
6323 6323 }
6324 6324
6325 6325 argc -= optind;
6326 6326 argv += optind;
6327 6327
6328 6328 /* check that we only have two arguments */
6329 6329 if (argc != 2) {
6330 6330 if (argc == 0)
6331 6331 (void) fprintf(stderr, gettext("missing dataset "
6332 6332 "argument\n"));
6333 6333 else if (argc == 1)
6334 6334 (void) fprintf(stderr,
6335 6335 gettext("missing mountpoint argument\n"));
6336 6336 else
6337 6337 (void) fprintf(stderr, gettext("too many arguments\n"));
6338 6338 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n");
6339 6339 return (2);
6340 6340 }
6341 6341
6342 6342 dataset = argv[0];
6343 6343 path = argv[1];
6344 6344
6345 6345 /* try to open the dataset */
6346 6346 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL)
6347 6347 return (1);
6348 6348
6349 6349 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
6350 6350 sizeof (mountpoint), NULL, NULL, 0, B_FALSE);
6351 6351
6352 6352 /* check for legacy mountpoint and complain appropriately */
6353 6353 ret = 0;
6354 6354 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) {
6355 6355 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS,
6356 6356 NULL, 0, mntopts, sizeof (mntopts)) != 0) {
6357 6357 (void) fprintf(stderr, gettext("mount failed: %s\n"),
6358 6358 strerror(errno));
6359 6359 ret = 1;
6360 6360 }
6361 6361 } else {
6362 6362 (void) fprintf(stderr, gettext("filesystem '%s' cannot be "
6363 6363 "mounted using 'mount -F zfs'\n"), dataset);
6364 6364 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' "
6365 6365 "instead.\n"), path);
6366 6366 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' "
6367 6367 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n"));
6368 6368 (void) fprintf(stderr, gettext("See zfs(1M) for more "
6369 6369 "information.\n"));
6370 6370 ret = 1;
6371 6371 }
6372 6372
6373 6373 return (ret);
6374 6374 }
6375 6375
6376 6376 /*
6377 6377 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow
6378 6378 * unmounts of non-legacy filesystems, as this is the dominant administrative
6379 6379 * interface.
6380 6380 */
6381 6381 static int
6382 6382 manual_unmount(int argc, char **argv)
6383 6383 {
6384 6384 int flags = 0;
6385 6385 int c;
6386 6386
6387 6387 /* check options */
6388 6388 while ((c = getopt(argc, argv, "f")) != -1) {
6389 6389 switch (c) {
6390 6390 case 'f':
6391 6391 flags = MS_FORCE;
6392 6392 break;
6393 6393 case '?':
6394 6394 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
6395 6395 optopt);
6396 6396 (void) fprintf(stderr, gettext("usage: unmount [-f] "
6397 6397 "<path>\n"));
6398 6398 return (2);
6399 6399 }
6400 6400 }
6401 6401
6402 6402 argc -= optind;
6403 6403 argv += optind;
6404 6404
6405 6405 /* check arguments */
6406 6406 if (argc != 1) {
6407 6407 if (argc == 0)
6408 6408 (void) fprintf(stderr, gettext("missing path "
6409 6409 "argument\n"));
6410 6410 else
6411 6411 (void) fprintf(stderr, gettext("too many arguments\n"));
6412 6412 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n"));
6413 6413 return (2);
6414 6414 }
6415 6415
6416 6416 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE));
6417 6417 }
6418 6418
6419 6419 static int
6420 6420 find_command_idx(char *command, int *idx)
6421 6421 {
6422 6422 int i;
6423 6423
6424 6424 for (i = 0; i < NCOMMAND; i++) {
6425 6425 if (command_table[i].name == NULL)
6426 6426 continue;
6427 6427
6428 6428 if (strcmp(command, command_table[i].name) == 0) {
6429 6429 *idx = i;
6430 6430 return (0);
6431 6431 }
6432 6432 }
6433 6433 return (1);
6434 6434 }
6435 6435
6436 6436 static int
6437 6437 zfs_do_diff(int argc, char **argv)
6438 6438 {
6439 6439 zfs_handle_t *zhp;
6440 6440 int flags = 0;
6441 6441 char *tosnap = NULL;
6442 6442 char *fromsnap = NULL;
6443 6443 char *atp, *copy;
6444 6444 int err = 0;
6445 6445 int c;
6446 6446
6447 6447 while ((c = getopt(argc, argv, "FHt")) != -1) {
6448 6448 switch (c) {
6449 6449 case 'F':
6450 6450 flags |= ZFS_DIFF_CLASSIFY;
6451 6451 break;
6452 6452 case 'H':
6453 6453 flags |= ZFS_DIFF_PARSEABLE;
6454 6454 break;
6455 6455 case 't':
6456 6456 flags |= ZFS_DIFF_TIMESTAMP;
6457 6457 break;
6458 6458 default:
6459 6459 (void) fprintf(stderr,
6460 6460 gettext("invalid option '%c'\n"), optopt);
6461 6461 usage(B_FALSE);
6462 6462 }
6463 6463 }
6464 6464
6465 6465 argc -= optind;
6466 6466 argv += optind;
6467 6467
6468 6468 if (argc < 1) {
6469 6469 (void) fprintf(stderr,
6470 6470 gettext("must provide at least one snapshot name\n"));
6471 6471 usage(B_FALSE);
6472 6472 }
6473 6473
6474 6474 if (argc > 2) {
6475 6475 (void) fprintf(stderr, gettext("too many arguments\n"));
6476 6476 usage(B_FALSE);
6477 6477 }
6478 6478
6479 6479 fromsnap = argv[0];
6480 6480 tosnap = (argc == 2) ? argv[1] : NULL;
6481 6481
6482 6482 copy = NULL;
6483 6483 if (*fromsnap != '@')
6484 6484 copy = strdup(fromsnap);
6485 6485 else if (tosnap)
6486 6486 copy = strdup(tosnap);
6487 6487 if (copy == NULL)
6488 6488 usage(B_FALSE);
6489 6489
6490 6490 if (atp = strchr(copy, '@'))
6491 6491 *atp = '\0';
6492 6492
6493 6493 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL)
6494 6494 return (1);
6495 6495
6496 6496 free(copy);
6497 6497
6498 6498 /*
6499 6499 * Ignore SIGPIPE so that the library can give us
6500 6500 * information on any failure
6501 6501 */
6502 6502 (void) sigignore(SIGPIPE);
6503 6503
6504 6504 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags);
6505 6505
6506 6506 zfs_close(zhp);
6507 6507
6508 6508 return (err != 0);
6509 6509 }
6510 6510
6511 6511 int
6512 6512 main(int argc, char **argv)
6513 6513 {
6514 6514 int ret = 0;
6515 6515 int i;
6516 6516 char *progname;
6517 6517 char *cmdname;
6518 6518
6519 6519 (void) setlocale(LC_ALL, "");
6520 6520 (void) textdomain(TEXT_DOMAIN);
6521 6521
6522 6522 opterr = 0;
6523 6523
6524 6524 if ((g_zfs = libzfs_init()) == NULL) {
6525 6525 (void) fprintf(stderr, gettext("internal error: failed to "
6526 6526 "initialize ZFS library\n"));
6527 6527 return (1);
6528 6528 }
6529 6529
6530 6530 zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
6531 6531
6532 6532 libzfs_print_on_error(g_zfs, B_TRUE);
6533 6533
6534 6534 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) {
6535 6535 (void) fprintf(stderr, gettext("internal error: unable to "
6536 6536 "open %s\n"), MNTTAB);
6537 6537 return (1);
6538 6538 }
6539 6539
6540 6540 /*
6541 6541 * This command also doubles as the /etc/fs mount and unmount program.
6542 6542 * Determine if we should take this behavior based on argv[0].
6543 6543 */
6544 6544 progname = basename(argv[0]);
6545 6545 if (strcmp(progname, "mount") == 0) {
6546 6546 ret = manual_mount(argc, argv);
6547 6547 } else if (strcmp(progname, "umount") == 0) {
6548 6548 ret = manual_unmount(argc, argv);
6549 6549 } else {
6550 6550 /*
6551 6551 * Make sure the user has specified some command.
6552 6552 */
6553 6553 if (argc < 2) {
6554 6554 (void) fprintf(stderr, gettext("missing command\n"));
6555 6555 usage(B_FALSE);
6556 6556 }
6557 6557
6558 6558 cmdname = argv[1];
6559 6559
6560 6560 /*
6561 6561 * The 'umount' command is an alias for 'unmount'
6562 6562 */
6563 6563 if (strcmp(cmdname, "umount") == 0)
6564 6564 cmdname = "unmount";
6565 6565
6566 6566 /*
6567 6567 * The 'recv' command is an alias for 'receive'
6568 6568 */
6569 6569 if (strcmp(cmdname, "recv") == 0)
6570 6570 cmdname = "receive";
6571 6571
6572 6572 /*
6573 6573 * Special case '-?'
6574 6574 */
6575 6575 if (strcmp(cmdname, "-?") == 0)
6576 6576 usage(B_TRUE);
6577 6577
6578 6578 /*
6579 6579 * Run the appropriate command.
6580 6580 */
6581 6581 libzfs_mnttab_cache(g_zfs, B_TRUE);
6582 6582 if (find_command_idx(cmdname, &i) == 0) {
6583 6583 current_command = &command_table[i];
6584 6584 ret = command_table[i].func(argc - 1, argv + 1);
6585 6585 } else if (strchr(cmdname, '=') != NULL) {
6586 6586 verify(find_command_idx("set", &i) == 0);
6587 6587 current_command = &command_table[i];
6588 6588 ret = command_table[i].func(argc, argv);
6589 6589 } else {
6590 6590 (void) fprintf(stderr, gettext("unrecognized "
6591 6591 "command '%s'\n"), cmdname);
6592 6592 usage(B_FALSE);
6593 6593 }
6594 6594 libzfs_mnttab_cache(g_zfs, B_FALSE);
6595 6595 }
6596 6596
6597 6597 (void) fclose(mnttab_file);
6598 6598
6599 6599 if (ret == 0 && log_history)
6600 6600 (void) zpool_log_history(g_zfs, history_str);
6601 6601
6602 6602 libzfs_fini(g_zfs);
6603 6603
6604 6604 /*
6605 6605 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
6606 6606 * for the purposes of running ::findleaks.
6607 6607 */
6608 6608 if (getenv("ZFS_ABORT") != NULL) {
6609 6609 (void) printf("dumping core by request\n");
6610 6610 abort();
6611 6611 }
6612 6612
6613 6613 return (ret);
6614 6614 }
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