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