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1 | /* | |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | */ | |
25 | ||
26 | #include <assert.h> | |
27 | #include <ctype.h> | |
28 | #include <errno.h> | |
29 | #include <libgen.h> | |
30 | #include <libintl.h> | |
31 | #include <libuutil.h> | |
32 | #include <libnvpair.h> | |
33 | #include <locale.h> | |
34 | #include <stddef.h> | |
35 | #include <stdio.h> | |
36 | #include <stdlib.h> | |
37 | #include <strings.h> | |
38 | #include <unistd.h> | |
39 | #include <fcntl.h> | |
40 | #include <zone.h> | |
41 | #include <grp.h> | |
42 | #include <pwd.h> | |
43 | #include <signal.h> | |
44 | #include <sys/mkdev.h> | |
45 | #include <sys/mntent.h> | |
46 | #include <sys/mnttab.h> | |
47 | #include <sys/mount.h> | |
48 | #include <sys/stat.h> | |
49 | #include <sys/fs/zfs.h> | |
50 | #include <sys/types.h> | |
51 | #include <time.h> | |
52 | ||
53 | #include <libzfs.h> | |
54 | #include <libuutil.h> | |
55 | ||
56 | #include "zfs_iter.h" | |
57 | #include "zfs_util.h" | |
58 | #include "zfs_comutil.h" | |
59 | ||
60 | libzfs_handle_t *g_zfs; | |
61 | ||
62 | static FILE *mnttab_file; | |
63 | static char history_str[HIS_MAX_RECORD_LEN]; | |
64 | const char *pypath = "/usr/lib/zfs/pyzfs.py"; | |
65 | ||
66 | static int zfs_do_clone(int argc, char **argv); | |
67 | static int zfs_do_create(int argc, char **argv); | |
68 | static int zfs_do_destroy(int argc, char **argv); | |
69 | static int zfs_do_get(int argc, char **argv); | |
70 | static int zfs_do_inherit(int argc, char **argv); | |
71 | static int zfs_do_list(int argc, char **argv); | |
72 | static int zfs_do_mount(int argc, char **argv); | |
73 | static int zfs_do_rename(int argc, char **argv); | |
74 | static int zfs_do_rollback(int argc, char **argv); | |
75 | static int zfs_do_set(int argc, char **argv); | |
76 | static int zfs_do_upgrade(int argc, char **argv); | |
77 | static int zfs_do_snapshot(int argc, char **argv); | |
78 | static int zfs_do_unmount(int argc, char **argv); | |
79 | static int zfs_do_share(int argc, char **argv); | |
80 | static int zfs_do_unshare(int argc, char **argv); | |
81 | static int zfs_do_send(int argc, char **argv); | |
82 | static int zfs_do_receive(int argc, char **argv); | |
83 | static int zfs_do_promote(int argc, char **argv); | |
84 | static int zfs_do_userspace(int argc, char **argv); | |
85 | static int zfs_do_python(int argc, char **argv); | |
86 | static int zfs_do_hold(int argc, char **argv); | |
87 | static int zfs_do_release(int argc, char **argv); | |
88 | static int zfs_do_diff(int argc, char **argv); | |
89 | ||
90 | /* | |
91 | * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. | |
92 | */ | |
93 | ||
94 | #ifdef DEBUG | |
95 | const char * | |
96 | _umem_debug_init(void) | |
97 | { | |
98 | return ("default,verbose"); /* $UMEM_DEBUG setting */ | |
99 | } | |
100 | ||
101 | const char * | |
102 | _umem_logging_init(void) | |
103 | { | |
104 | return ("fail,contents"); /* $UMEM_LOGGING setting */ | |
105 | } | |
106 | #endif | |
107 | ||
108 | typedef enum { | |
109 | HELP_CLONE, | |
110 | HELP_CREATE, | |
111 | HELP_DESTROY, | |
112 | HELP_GET, | |
113 | HELP_INHERIT, | |
114 | HELP_UPGRADE, | |
115 | HELP_LIST, | |
116 | HELP_MOUNT, | |
117 | HELP_PROMOTE, | |
118 | HELP_RECEIVE, | |
119 | HELP_RENAME, | |
120 | HELP_ROLLBACK, | |
121 | HELP_SEND, | |
122 | HELP_SET, | |
123 | HELP_SHARE, | |
124 | HELP_SNAPSHOT, | |
125 | HELP_UNMOUNT, | |
126 | HELP_UNSHARE, | |
127 | HELP_ALLOW, | |
128 | HELP_UNALLOW, | |
129 | HELP_USERSPACE, | |
130 | HELP_GROUPSPACE, | |
131 | HELP_HOLD, | |
132 | HELP_HOLDS, | |
133 | HELP_RELEASE, | |
134 | HELP_DIFF | |
135 | } zfs_help_t; | |
136 | ||
137 | typedef struct zfs_command { | |
138 | const char *name; | |
139 | int (*func)(int argc, char **argv); | |
140 | zfs_help_t usage; | |
141 | } zfs_command_t; | |
142 | ||
143 | /* | |
144 | * Master command table. Each ZFS command has a name, associated function, and | |
145 | * usage message. The usage messages need to be internationalized, so we have | |
146 | * to have a function to return the usage message based on a command index. | |
147 | * | |
148 | * These commands are organized according to how they are displayed in the usage | |
149 | * message. An empty command (one with a NULL name) indicates an empty line in | |
150 | * the generic usage message. | |
151 | */ | |
152 | static zfs_command_t command_table[] = { | |
153 | { "create", zfs_do_create, HELP_CREATE }, | |
154 | { "destroy", zfs_do_destroy, HELP_DESTROY }, | |
155 | { NULL }, | |
156 | { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, | |
157 | { "rollback", zfs_do_rollback, HELP_ROLLBACK }, | |
158 | { "clone", zfs_do_clone, HELP_CLONE }, | |
159 | { "promote", zfs_do_promote, HELP_PROMOTE }, | |
160 | { "rename", zfs_do_rename, HELP_RENAME }, | |
161 | { NULL }, | |
162 | { "list", zfs_do_list, HELP_LIST }, | |
163 | { NULL }, | |
164 | { "set", zfs_do_set, HELP_SET }, | |
165 | { "get", zfs_do_get, HELP_GET }, | |
166 | { "inherit", zfs_do_inherit, HELP_INHERIT }, | |
167 | { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, | |
168 | { "userspace", zfs_do_userspace, HELP_USERSPACE }, | |
169 | { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, | |
170 | { NULL }, | |
171 | { "mount", zfs_do_mount, HELP_MOUNT }, | |
172 | { "unmount", zfs_do_unmount, HELP_UNMOUNT }, | |
173 | { "share", zfs_do_share, HELP_SHARE }, | |
174 | { "unshare", zfs_do_unshare, HELP_UNSHARE }, | |
175 | { NULL }, | |
176 | { "send", zfs_do_send, HELP_SEND }, | |
177 | { "receive", zfs_do_receive, HELP_RECEIVE }, | |
178 | { NULL }, | |
179 | { "allow", zfs_do_python, HELP_ALLOW }, | |
180 | { NULL }, | |
181 | { "unallow", zfs_do_python, HELP_UNALLOW }, | |
182 | { NULL }, | |
183 | { "hold", zfs_do_hold, HELP_HOLD }, | |
184 | { "holds", zfs_do_python, HELP_HOLDS }, | |
185 | { "release", zfs_do_release, HELP_RELEASE }, | |
186 | { "diff", zfs_do_diff, HELP_DIFF }, | |
187 | }; | |
188 | ||
189 | #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) | |
190 | ||
191 | zfs_command_t *current_command; | |
192 | ||
193 | static const char * | |
194 | get_usage(zfs_help_t idx) | |
195 | { | |
196 | switch (idx) { | |
197 | case HELP_CLONE: | |
198 | return (gettext("\tclone [-p] [-o property=value] ... " | |
199 | "<snapshot> <filesystem|volume>\n")); | |
200 | case HELP_CREATE: | |
201 | return (gettext("\tcreate [-p] [-o property=value] ... " | |
202 | "<filesystem>\n" | |
203 | "\tcreate [-ps] [-b blocksize] [-o property=value] ... " | |
204 | "-V <size> <volume>\n")); | |
205 | case HELP_DESTROY: | |
206 | return (gettext("\tdestroy [-rRf] <filesystem|volume>\n" | |
207 | "\tdestroy [-rRd] <snapshot>\n")); | |
208 | case HELP_GET: | |
209 | return (gettext("\tget [-rHp] [-d max] " | |
210 | "[-o \"all\" | field[,...]] [-s source[,...]]\n" | |
211 | "\t <\"all\" | property[,...]> " | |
212 | "[filesystem|volume|snapshot] ...\n")); | |
213 | case HELP_INHERIT: | |
214 | return (gettext("\tinherit [-rS] <property> " | |
215 | "<filesystem|volume|snapshot> ...\n")); | |
216 | case HELP_UPGRADE: | |
217 | return (gettext("\tupgrade [-v]\n" | |
218 | "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); | |
219 | case HELP_LIST: | |
220 | return (gettext("\tlist [-rH][-d max] " | |
221 | "[-o property[,...]] [-t type[,...]] [-s property] ...\n" | |
222 | "\t [-S property] ... " | |
223 | "[filesystem|volume|snapshot] ...\n")); | |
224 | case HELP_MOUNT: | |
225 | return (gettext("\tmount\n" | |
226 | "\tmount [-vO] [-o opts] <-a | filesystem>\n")); | |
227 | case HELP_PROMOTE: | |
228 | return (gettext("\tpromote <clone-filesystem>\n")); | |
229 | case HELP_RECEIVE: | |
230 | return (gettext("\treceive [-vnFu] <filesystem|volume|" | |
231 | "snapshot>\n" | |
232 | "\treceive [-vnFu] [-d | -e] <filesystem>\n")); | |
233 | case HELP_RENAME: | |
234 | return (gettext("\trename <filesystem|volume|snapshot> " | |
235 | "<filesystem|volume|snapshot>\n" | |
236 | "\trename -p <filesystem|volume> <filesystem|volume>\n" | |
237 | "\trename -r <snapshot> <snapshot>")); | |
238 | case HELP_ROLLBACK: | |
239 | return (gettext("\trollback [-rRf] <snapshot>\n")); | |
240 | case HELP_SEND: | |
241 | return (gettext("\tsend [-RDp] [-[iI] snapshot] <snapshot>\n")); | |
242 | case HELP_SET: | |
243 | return (gettext("\tset <property=value> " | |
244 | "<filesystem|volume|snapshot> ...\n")); | |
245 | case HELP_SHARE: | |
246 | return (gettext("\tshare <-a | filesystem>\n")); | |
247 | case HELP_SNAPSHOT: | |
248 | return (gettext("\tsnapshot [-r] [-o property=value] ... " | |
249 | "<filesystem@snapname|volume@snapname>\n")); | |
250 | case HELP_UNMOUNT: | |
251 | return (gettext("\tunmount [-f] " | |
252 | "<-a | filesystem|mountpoint>\n")); | |
253 | case HELP_UNSHARE: | |
254 | return (gettext("\tunshare " | |
255 | "<-a | filesystem|mountpoint>\n")); | |
256 | case HELP_ALLOW: | |
257 | return (gettext("\tallow <filesystem|volume>\n" | |
258 | "\tallow [-ldug] " | |
259 | "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" | |
260 | "\t <filesystem|volume>\n" | |
261 | "\tallow [-ld] -e <perm|@setname>[,...] " | |
262 | "<filesystem|volume>\n" | |
263 | "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" | |
264 | "\tallow -s @setname <perm|@setname>[,...] " | |
265 | "<filesystem|volume>\n")); | |
266 | case HELP_UNALLOW: | |
267 | return (gettext("\tunallow [-rldug] " | |
268 | "<\"everyone\"|user|group>[,...]\n" | |
269 | "\t [<perm|@setname>[,...]] <filesystem|volume>\n" | |
270 | "\tunallow [-rld] -e [<perm|@setname>[,...]] " | |
271 | "<filesystem|volume>\n" | |
272 | "\tunallow [-r] -c [<perm|@setname>[,...]] " | |
273 | "<filesystem|volume>\n" | |
274 | "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " | |
275 | "<filesystem|volume>\n")); | |
276 | case HELP_USERSPACE: | |
277 | return (gettext("\tuserspace [-hniHp] [-o field[,...]] " | |
278 | "[-sS field] ... [-t type[,...]]\n" | |
279 | "\t <filesystem|snapshot>\n")); | |
280 | case HELP_GROUPSPACE: | |
281 | return (gettext("\tgroupspace [-hniHpU] [-o field[,...]] " | |
282 | "[-sS field] ... [-t type[,...]]\n" | |
283 | "\t <filesystem|snapshot>\n")); | |
284 | case HELP_HOLD: | |
285 | return (gettext("\thold [-r] <tag> <snapshot> ...\n")); | |
286 | case HELP_HOLDS: | |
287 | return (gettext("\tholds [-r] <snapshot> ...\n")); | |
288 | case HELP_RELEASE: | |
289 | return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); | |
290 | case HELP_DIFF: | |
291 | return (gettext("\tdiff [-FHt] <snapshot> " | |
292 | "[snapshot|filesystem]\n")); | |
293 | } | |
294 | ||
295 | abort(); | |
296 | /* NOTREACHED */ | |
297 | } | |
298 | ||
299 | void | |
300 | nomem(void) | |
301 | { | |
302 | (void) fprintf(stderr, gettext("internal error: out of memory\n")); | |
303 | exit(1); | |
304 | } | |
305 | ||
306 | /* | |
307 | * Utility function to guarantee malloc() success. | |
308 | */ | |
309 | ||
310 | void * | |
311 | safe_malloc(size_t size) | |
312 | { | |
313 | void *data; | |
314 | ||
315 | if ((data = calloc(1, size)) == NULL) | |
316 | nomem(); | |
317 | ||
318 | return (data); | |
319 | } | |
320 | ||
321 | static char * | |
322 | safe_strdup(char *str) | |
323 | { | |
324 | char *dupstr = strdup(str); | |
325 | ||
326 | if (dupstr == NULL) | |
327 | nomem(); | |
328 | ||
329 | return (dupstr); | |
330 | } | |
331 | ||
332 | /* | |
333 | * Callback routine that will print out information for each of | |
334 | * the properties. | |
335 | */ | |
336 | static int | |
337 | usage_prop_cb(int prop, void *cb) | |
338 | { | |
339 | FILE *fp = cb; | |
340 | ||
341 | (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); | |
342 | ||
343 | if (zfs_prop_readonly(prop)) | |
344 | (void) fprintf(fp, " NO "); | |
345 | else | |
346 | (void) fprintf(fp, "YES "); | |
347 | ||
348 | if (zfs_prop_inheritable(prop)) | |
349 | (void) fprintf(fp, " YES "); | |
350 | else | |
351 | (void) fprintf(fp, " NO "); | |
352 | ||
353 | if (zfs_prop_values(prop) == NULL) | |
354 | (void) fprintf(fp, "-\n"); | |
355 | else | |
356 | (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); | |
357 | ||
358 | return (ZPROP_CONT); | |
359 | } | |
360 | ||
361 | /* | |
362 | * Display usage message. If we're inside a command, display only the usage for | |
363 | * that command. Otherwise, iterate over the entire command table and display | |
364 | * a complete usage message. | |
365 | */ | |
366 | static void | |
367 | usage(boolean_t requested) | |
368 | { | |
369 | int i; | |
370 | boolean_t show_properties = B_FALSE; | |
371 | FILE *fp = requested ? stdout : stderr; | |
372 | ||
373 | if (current_command == NULL) { | |
374 | ||
375 | (void) fprintf(fp, gettext("usage: zfs command args ...\n")); | |
376 | (void) fprintf(fp, | |
377 | gettext("where 'command' is one of the following:\n\n")); | |
378 | ||
379 | for (i = 0; i < NCOMMAND; i++) { | |
380 | if (command_table[i].name == NULL) | |
381 | (void) fprintf(fp, "\n"); | |
382 | else | |
383 | (void) fprintf(fp, "%s", | |
384 | get_usage(command_table[i].usage)); | |
385 | } | |
386 | ||
387 | (void) fprintf(fp, gettext("\nEach dataset is of the form: " | |
388 | "pool/[dataset/]*dataset[@name]\n")); | |
389 | } else { | |
390 | (void) fprintf(fp, gettext("usage:\n")); | |
391 | (void) fprintf(fp, "%s", get_usage(current_command->usage)); | |
392 | } | |
393 | ||
394 | if (current_command != NULL && | |
395 | (strcmp(current_command->name, "set") == 0 || | |
396 | strcmp(current_command->name, "get") == 0 || | |
397 | strcmp(current_command->name, "inherit") == 0 || | |
398 | strcmp(current_command->name, "list") == 0)) | |
399 | show_properties = B_TRUE; | |
400 | ||
401 | if (show_properties) { | |
402 | (void) fprintf(fp, | |
403 | gettext("\nThe following properties are supported:\n")); | |
404 | ||
405 | (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", | |
406 | "PROPERTY", "EDIT", "INHERIT", "VALUES"); | |
407 | ||
408 | /* Iterate over all properties */ | |
409 | (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, | |
410 | ZFS_TYPE_DATASET); | |
411 | ||
412 | (void) fprintf(fp, "\t%-15s ", "userused@..."); | |
413 | (void) fprintf(fp, " NO NO <size>\n"); | |
414 | (void) fprintf(fp, "\t%-15s ", "groupused@..."); | |
415 | (void) fprintf(fp, " NO NO <size>\n"); | |
416 | (void) fprintf(fp, "\t%-15s ", "userquota@..."); | |
417 | (void) fprintf(fp, "YES NO <size> | none\n"); | |
418 | (void) fprintf(fp, "\t%-15s ", "groupquota@..."); | |
419 | (void) fprintf(fp, "YES NO <size> | none\n"); | |
420 | ||
421 | (void) fprintf(fp, gettext("\nSizes are specified in bytes " | |
422 | "with standard units such as K, M, G, etc.\n")); | |
423 | (void) fprintf(fp, gettext("\nUser-defined properties can " | |
424 | "be specified by using a name containing a colon (:).\n")); | |
425 | (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " | |
426 | "properties must be appended with\n" | |
427 | "a user or group specifier of one of these forms:\n" | |
428 | " POSIX name (eg: \"matt\")\n" | |
429 | " POSIX id (eg: \"126829\")\n" | |
430 | " SMB name@domain (eg: \"matt@sun\")\n" | |
431 | " SMB SID (eg: \"S-1-234-567-89\")\n")); | |
432 | } else { | |
433 | (void) fprintf(fp, | |
434 | gettext("\nFor the property list, run: %s\n"), | |
435 | "zfs set|get"); | |
436 | (void) fprintf(fp, | |
437 | gettext("\nFor the delegated permission list, run: %s\n"), | |
438 | "zfs allow|unallow"); | |
439 | } | |
440 | ||
441 | /* | |
442 | * See comments at end of main(). | |
443 | */ | |
444 | if (getenv("ZFS_ABORT") != NULL) { | |
445 | (void) printf("dumping core by request\n"); | |
446 | abort(); | |
447 | } | |
448 | ||
449 | exit(requested ? 0 : 2); | |
450 | } | |
451 | ||
452 | static int | |
453 | parseprop(nvlist_t *props) | |
454 | { | |
455 | char *propname = optarg; | |
456 | char *propval, *strval; | |
457 | ||
458 | if ((propval = strchr(propname, '=')) == NULL) { | |
459 | (void) fprintf(stderr, gettext("missing " | |
460 | "'=' for -o option\n")); | |
461 | return (-1); | |
462 | } | |
463 | *propval = '\0'; | |
464 | propval++; | |
465 | if (nvlist_lookup_string(props, propname, &strval) == 0) { | |
466 | (void) fprintf(stderr, gettext("property '%s' " | |
467 | "specified multiple times\n"), propname); | |
468 | return (-1); | |
469 | } | |
470 | if (nvlist_add_string(props, propname, propval) != 0) | |
471 | nomem(); | |
472 | return (0); | |
473 | } | |
474 | ||
475 | static int | |
476 | parse_depth(char *opt, int *flags) | |
477 | { | |
478 | char *tmp; | |
479 | int depth; | |
480 | ||
481 | depth = (int)strtol(opt, &tmp, 0); | |
482 | if (*tmp) { | |
483 | (void) fprintf(stderr, | |
484 | gettext("%s is not an integer\n"), optarg); | |
485 | usage(B_FALSE); | |
486 | } | |
487 | if (depth < 0) { | |
488 | (void) fprintf(stderr, | |
489 | gettext("Depth can not be negative.\n")); | |
490 | usage(B_FALSE); | |
491 | } | |
492 | *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); | |
493 | return (depth); | |
494 | } | |
495 | ||
496 | #define PROGRESS_DELAY 2 /* seconds */ | |
497 | ||
498 | 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"; | |
499 | static time_t pt_begin; | |
500 | static char *pt_header = NULL; | |
501 | static boolean_t pt_shown; | |
502 | ||
503 | static void | |
504 | start_progress_timer(void) | |
505 | { | |
506 | pt_begin = time(NULL) + PROGRESS_DELAY; | |
507 | pt_shown = B_FALSE; | |
508 | } | |
509 | ||
510 | static void | |
511 | set_progress_header(char *header) | |
512 | { | |
513 | assert(pt_header == NULL); | |
514 | pt_header = safe_strdup(header); | |
515 | if (pt_shown) { | |
516 | (void) printf("%s: ", header); | |
517 | (void) fflush(stdout); | |
518 | } | |
519 | } | |
520 | ||
521 | static void | |
522 | update_progress(char *update) | |
523 | { | |
524 | if (!pt_shown && time(NULL) > pt_begin) { | |
525 | int len = strlen(update); | |
526 | ||
527 | (void) printf("%s: %s%*.*s", pt_header, update, len, len, | |
528 | pt_reverse); | |
529 | (void) fflush(stdout); | |
530 | pt_shown = B_TRUE; | |
531 | } else if (pt_shown) { | |
532 | int len = strlen(update); | |
533 | ||
534 | (void) printf("%s%*.*s", update, len, len, pt_reverse); | |
535 | (void) fflush(stdout); | |
536 | } | |
537 | } | |
538 | ||
539 | static void | |
540 | finish_progress(char *done) | |
541 | { | |
542 | if (pt_shown) { | |
543 | (void) printf("%s\n", done); | |
544 | (void) fflush(stdout); | |
545 | } | |
546 | free(pt_header); | |
547 | pt_header = NULL; | |
548 | } | |
549 | /* | |
550 | * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> | |
551 | * | |
552 | * Given an existing dataset, create a writable copy whose initial contents | |
553 | * are the same as the source. The newly created dataset maintains a | |
554 | * dependency on the original; the original cannot be destroyed so long as | |
555 | * the clone exists. | |
556 | * | |
557 | * The '-p' flag creates all the non-existing ancestors of the target first. | |
558 | */ | |
559 | static int | |
560 | zfs_do_clone(int argc, char **argv) | |
561 | { | |
562 | zfs_handle_t *zhp = NULL; | |
563 | boolean_t parents = B_FALSE; | |
564 | nvlist_t *props; | |
565 | int ret; | |
566 | int c; | |
567 | ||
568 | if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) | |
569 | nomem(); | |
570 | ||
571 | /* check options */ | |
572 | while ((c = getopt(argc, argv, "o:p")) != -1) { | |
573 | switch (c) { | |
574 | case 'o': | |
575 | if (parseprop(props)) | |
576 | return (1); | |
577 | break; | |
578 | case 'p': | |
579 | parents = B_TRUE; | |
580 | break; | |
581 | case '?': | |
582 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
583 | optopt); | |
584 | goto usage; | |
585 | } | |
586 | } | |
587 | ||
588 | argc -= optind; | |
589 | argv += optind; | |
590 | ||
591 | /* check number of arguments */ | |
592 | if (argc < 1) { | |
593 | (void) fprintf(stderr, gettext("missing source dataset " | |
594 | "argument\n")); | |
595 | goto usage; | |
596 | } | |
597 | if (argc < 2) { | |
598 | (void) fprintf(stderr, gettext("missing target dataset " | |
599 | "argument\n")); | |
600 | goto usage; | |
601 | } | |
602 | if (argc > 2) { | |
603 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
604 | goto usage; | |
605 | } | |
606 | ||
607 | /* open the source dataset */ | |
608 | if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) | |
609 | return (1); | |
610 | ||
611 | if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | | |
612 | ZFS_TYPE_VOLUME)) { | |
613 | /* | |
614 | * Now create the ancestors of the target dataset. If the | |
615 | * target already exists and '-p' option was used we should not | |
616 | * complain. | |
617 | */ | |
618 | if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | | |
619 | ZFS_TYPE_VOLUME)) | |
620 | return (0); | |
621 | if (zfs_create_ancestors(g_zfs, argv[1]) != 0) | |
622 | return (1); | |
623 | } | |
624 | ||
625 | /* pass to libzfs */ | |
626 | ret = zfs_clone(zhp, argv[1], props); | |
627 | ||
628 | /* create the mountpoint if necessary */ | |
629 | if (ret == 0) { | |
630 | zfs_handle_t *clone; | |
631 | ||
632 | clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); | |
633 | if (clone != NULL) { | |
634 | if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) | |
635 | if ((ret = zfs_mount(clone, NULL, 0)) == 0) | |
636 | ret = zfs_share(clone); | |
637 | zfs_close(clone); | |
638 | } | |
639 | } | |
640 | ||
641 | zfs_close(zhp); | |
642 | nvlist_free(props); | |
643 | ||
644 | return (!!ret); | |
645 | ||
646 | usage: | |
647 | if (zhp) | |
648 | zfs_close(zhp); | |
649 | nvlist_free(props); | |
650 | usage(B_FALSE); | |
651 | return (-1); | |
652 | } | |
653 | ||
654 | /* | |
655 | * zfs create [-p] [-o prop=value] ... fs | |
656 | * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size | |
657 | * | |
658 | * Create a new dataset. This command can be used to create filesystems | |
659 | * and volumes. Snapshot creation is handled by 'zfs snapshot'. | |
660 | * For volumes, the user must specify a size to be used. | |
661 | * | |
662 | * The '-s' flag applies only to volumes, and indicates that we should not try | |
663 | * to set the reservation for this volume. By default we set a reservation | |
664 | * equal to the size for any volume. For pools with SPA_VERSION >= | |
665 | * SPA_VERSION_REFRESERVATION, we set a refreservation instead. | |
666 | * | |
667 | * The '-p' flag creates all the non-existing ancestors of the target first. | |
668 | */ | |
669 | static int | |
670 | zfs_do_create(int argc, char **argv) | |
671 | { | |
672 | zfs_type_t type = ZFS_TYPE_FILESYSTEM; | |
673 | zfs_handle_t *zhp = NULL; | |
674 | uint64_t volsize = 0; | |
675 | int c; | |
676 | boolean_t noreserve = B_FALSE; | |
677 | boolean_t bflag = B_FALSE; | |
678 | boolean_t parents = B_FALSE; | |
679 | int ret = 1; | |
680 | nvlist_t *props; | |
681 | uint64_t intval; | |
682 | int canmount = ZFS_CANMOUNT_OFF; | |
683 | ||
684 | if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) | |
685 | nomem(); | |
686 | ||
687 | /* check options */ | |
688 | while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { | |
689 | switch (c) { | |
690 | case 'V': | |
691 | type = ZFS_TYPE_VOLUME; | |
692 | if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { | |
693 | (void) fprintf(stderr, gettext("bad volume " | |
694 | "size '%s': %s\n"), optarg, | |
695 | libzfs_error_description(g_zfs)); | |
696 | goto error; | |
697 | } | |
698 | ||
699 | if (nvlist_add_uint64(props, | |
700 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) | |
701 | nomem(); | |
702 | volsize = intval; | |
703 | break; | |
704 | case 'p': | |
705 | parents = B_TRUE; | |
706 | break; | |
707 | case 'b': | |
708 | bflag = B_TRUE; | |
709 | if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { | |
710 | (void) fprintf(stderr, gettext("bad volume " | |
711 | "block size '%s': %s\n"), optarg, | |
712 | libzfs_error_description(g_zfs)); | |
713 | goto error; | |
714 | } | |
715 | ||
716 | if (nvlist_add_uint64(props, | |
717 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
718 | intval) != 0) | |
719 | nomem(); | |
720 | break; | |
721 | case 'o': | |
722 | if (parseprop(props)) | |
723 | goto error; | |
724 | break; | |
725 | case 's': | |
726 | noreserve = B_TRUE; | |
727 | break; | |
728 | case ':': | |
729 | (void) fprintf(stderr, gettext("missing size " | |
730 | "argument\n")); | |
731 | goto badusage; | |
732 | break; | |
733 | case '?': | |
734 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
735 | optopt); | |
736 | goto badusage; | |
737 | } | |
738 | } | |
739 | ||
740 | if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { | |
741 | (void) fprintf(stderr, gettext("'-s' and '-b' can only be " | |
742 | "used when creating a volume\n")); | |
743 | goto badusage; | |
744 | } | |
745 | ||
746 | argc -= optind; | |
747 | argv += optind; | |
748 | ||
749 | /* check number of arguments */ | |
750 | if (argc == 0) { | |
751 | (void) fprintf(stderr, gettext("missing %s argument\n"), | |
752 | zfs_type_to_name(type)); | |
753 | goto badusage; | |
754 | } | |
755 | if (argc > 1) { | |
756 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
757 | goto badusage; | |
758 | } | |
759 | ||
760 | if (type == ZFS_TYPE_VOLUME && !noreserve) { | |
761 | zpool_handle_t *zpool_handle; | |
762 | uint64_t spa_version; | |
763 | char *p; | |
764 | zfs_prop_t resv_prop; | |
765 | char *strval; | |
766 | ||
767 | if ((p = strchr(argv[0], '/'))) | |
768 | *p = '\0'; | |
769 | zpool_handle = zpool_open(g_zfs, argv[0]); | |
770 | if (p != NULL) | |
771 | *p = '/'; | |
772 | if (zpool_handle == NULL) | |
773 | goto error; | |
774 | spa_version = zpool_get_prop_int(zpool_handle, | |
775 | ZPOOL_PROP_VERSION, NULL); | |
776 | zpool_close(zpool_handle); | |
777 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
778 | resv_prop = ZFS_PROP_REFRESERVATION; | |
779 | else | |
780 | resv_prop = ZFS_PROP_RESERVATION; | |
781 | volsize = zvol_volsize_to_reservation(volsize, props); | |
782 | ||
783 | if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), | |
784 | &strval) != 0) { | |
785 | if (nvlist_add_uint64(props, | |
786 | zfs_prop_to_name(resv_prop), volsize) != 0) { | |
787 | nvlist_free(props); | |
788 | nomem(); | |
789 | } | |
790 | } | |
791 | } | |
792 | ||
793 | if (parents && zfs_name_valid(argv[0], type)) { | |
794 | /* | |
795 | * Now create the ancestors of target dataset. If the target | |
796 | * already exists and '-p' option was used we should not | |
797 | * complain. | |
798 | */ | |
799 | if (zfs_dataset_exists(g_zfs, argv[0], type)) { | |
800 | ret = 0; | |
801 | goto error; | |
802 | } | |
803 | if (zfs_create_ancestors(g_zfs, argv[0]) != 0) | |
804 | goto error; | |
805 | } | |
806 | ||
807 | /* pass to libzfs */ | |
808 | if (zfs_create(g_zfs, argv[0], type, props) != 0) | |
809 | goto error; | |
810 | ||
811 | if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) | |
812 | goto error; | |
813 | ||
814 | ret = 0; | |
815 | /* | |
816 | * if the user doesn't want the dataset automatically mounted, | |
817 | * then skip the mount/share step | |
818 | */ | |
819 | if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) | |
820 | canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); | |
821 | ||
822 | /* | |
823 | * Mount and/or share the new filesystem as appropriate. We provide a | |
824 | * verbose error message to let the user know that their filesystem was | |
825 | * in fact created, even if we failed to mount or share it. | |
826 | */ | |
827 | if (canmount == ZFS_CANMOUNT_ON) { | |
828 | if (zfs_mount(zhp, NULL, 0) != 0) { | |
829 | (void) fprintf(stderr, gettext("filesystem " | |
830 | "successfully created, but not mounted\n")); | |
831 | ret = 1; | |
832 | } else if (zfs_share(zhp) != 0) { | |
833 | (void) fprintf(stderr, gettext("filesystem " | |
834 | "successfully created, but not shared\n")); | |
835 | ret = 1; | |
836 | } | |
837 | } | |
838 | ||
839 | error: | |
840 | if (zhp) | |
841 | zfs_close(zhp); | |
842 | nvlist_free(props); | |
843 | return (ret); | |
844 | badusage: | |
845 | nvlist_free(props); | |
846 | usage(B_FALSE); | |
847 | return (2); | |
848 | } | |
849 | ||
850 | /* | |
851 | * zfs destroy [-rRf] <fs, vol> | |
852 | * zfs destroy [-rRd] <snap> | |
853 | * | |
854 | * -r Recursively destroy all children | |
855 | * -R Recursively destroy all dependents, including clones | |
856 | * -f Force unmounting of any dependents | |
857 | * -d If we can't destroy now, mark for deferred destruction | |
858 | * | |
859 | * Destroys the given dataset. By default, it will unmount any filesystems, | |
860 | * and refuse to destroy a dataset that has any dependents. A dependent can | |
861 | * either be a child, or a clone of a child. | |
862 | */ | |
863 | typedef struct destroy_cbdata { | |
864 | boolean_t cb_first; | |
865 | int cb_force; | |
866 | int cb_recurse; | |
867 | int cb_error; | |
868 | int cb_needforce; | |
869 | int cb_doclones; | |
870 | boolean_t cb_closezhp; | |
871 | zfs_handle_t *cb_target; | |
872 | char *cb_snapname; | |
873 | boolean_t cb_defer_destroy; | |
874 | } destroy_cbdata_t; | |
875 | ||
876 | /* | |
877 | * Check for any dependents based on the '-r' or '-R' flags. | |
878 | */ | |
879 | static int | |
880 | destroy_check_dependent(zfs_handle_t *zhp, void *data) | |
881 | { | |
882 | destroy_cbdata_t *cbp = data; | |
883 | const char *tname = zfs_get_name(cbp->cb_target); | |
884 | const char *name = zfs_get_name(zhp); | |
885 | ||
886 | if (strncmp(tname, name, strlen(tname)) == 0 && | |
887 | (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { | |
888 | /* | |
889 | * This is a direct descendant, not a clone somewhere else in | |
890 | * the hierarchy. | |
891 | */ | |
892 | if (cbp->cb_recurse) | |
893 | goto out; | |
894 | ||
895 | if (cbp->cb_first) { | |
896 | (void) fprintf(stderr, gettext("cannot destroy '%s': " | |
897 | "%s has children\n"), | |
898 | zfs_get_name(cbp->cb_target), | |
899 | zfs_type_to_name(zfs_get_type(cbp->cb_target))); | |
900 | (void) fprintf(stderr, gettext("use '-r' to destroy " | |
901 | "the following datasets:\n")); | |
902 | cbp->cb_first = B_FALSE; | |
903 | cbp->cb_error = 1; | |
904 | } | |
905 | ||
906 | (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); | |
907 | } else { | |
908 | /* | |
909 | * This is a clone. We only want to report this if the '-r' | |
910 | * wasn't specified, or the target is a snapshot. | |
911 | */ | |
912 | if (!cbp->cb_recurse && | |
913 | zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) | |
914 | goto out; | |
915 | ||
916 | if (cbp->cb_first) { | |
917 | (void) fprintf(stderr, gettext("cannot destroy '%s': " | |
918 | "%s has dependent clones\n"), | |
919 | zfs_get_name(cbp->cb_target), | |
920 | zfs_type_to_name(zfs_get_type(cbp->cb_target))); | |
921 | (void) fprintf(stderr, gettext("use '-R' to destroy " | |
922 | "the following datasets:\n")); | |
923 | cbp->cb_first = B_FALSE; | |
924 | cbp->cb_error = 1; | |
925 | } | |
926 | ||
927 | (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); | |
928 | } | |
929 | ||
930 | out: | |
931 | zfs_close(zhp); | |
932 | return (0); | |
933 | } | |
934 | ||
935 | static int | |
936 | destroy_callback(zfs_handle_t *zhp, void *data) | |
937 | { | |
938 | destroy_cbdata_t *cbp = data; | |
939 | ||
940 | /* | |
941 | * Ignore pools (which we've already flagged as an error before getting | |
942 | * here). | |
943 | */ | |
944 | if (strchr(zfs_get_name(zhp), '/') == NULL && | |
945 | zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { | |
946 | zfs_close(zhp); | |
947 | return (0); | |
948 | } | |
949 | ||
950 | /* | |
951 | * Bail out on the first error. | |
952 | */ | |
953 | if (zfs_unmount(zhp, NULL, cbp->cb_force ? MS_FORCE : 0) != 0 || | |
954 | zfs_destroy(zhp, cbp->cb_defer_destroy) != 0) { | |
955 | zfs_close(zhp); | |
956 | return (-1); | |
957 | } | |
958 | ||
959 | zfs_close(zhp); | |
960 | return (0); | |
961 | } | |
962 | ||
963 | static int | |
964 | destroy_snap_clones(zfs_handle_t *zhp, void *arg) | |
965 | { | |
966 | destroy_cbdata_t *cbp = arg; | |
967 | char thissnap[MAXPATHLEN]; | |
968 | zfs_handle_t *szhp; | |
969 | boolean_t closezhp = cbp->cb_closezhp; | |
970 | int rv; | |
971 | ||
972 | (void) snprintf(thissnap, sizeof (thissnap), | |
973 | "%s@%s", zfs_get_name(zhp), cbp->cb_snapname); | |
974 | ||
975 | libzfs_print_on_error(g_zfs, B_FALSE); | |
976 | szhp = zfs_open(g_zfs, thissnap, ZFS_TYPE_SNAPSHOT); | |
977 | libzfs_print_on_error(g_zfs, B_TRUE); | |
978 | if (szhp) { | |
979 | /* | |
980 | * Destroy any clones of this snapshot | |
981 | */ | |
982 | if (zfs_iter_dependents(szhp, B_FALSE, destroy_callback, | |
983 | cbp) != 0) { | |
984 | zfs_close(szhp); | |
985 | if (closezhp) | |
986 | zfs_close(zhp); | |
987 | return (-1); | |
988 | } | |
989 | zfs_close(szhp); | |
990 | } | |
991 | ||
992 | cbp->cb_closezhp = B_TRUE; | |
993 | rv = zfs_iter_filesystems(zhp, destroy_snap_clones, arg); | |
994 | if (closezhp) | |
995 | zfs_close(zhp); | |
996 | return (rv); | |
997 | } | |
998 | ||
999 | static int | |
1000 | zfs_do_destroy(int argc, char **argv) | |
1001 | { | |
1002 | destroy_cbdata_t cb = { 0 }; | |
1003 | int c; | |
1004 | zfs_handle_t *zhp; | |
1005 | char *cp; | |
1006 | zfs_type_t type = ZFS_TYPE_DATASET; | |
1007 | ||
1008 | /* check options */ | |
1009 | while ((c = getopt(argc, argv, "dfrR")) != -1) { | |
1010 | switch (c) { | |
1011 | case 'd': | |
1012 | cb.cb_defer_destroy = B_TRUE; | |
1013 | type = ZFS_TYPE_SNAPSHOT; | |
1014 | break; | |
1015 | case 'f': | |
1016 | cb.cb_force = 1; | |
1017 | break; | |
1018 | case 'r': | |
1019 | cb.cb_recurse = 1; | |
1020 | break; | |
1021 | case 'R': | |
1022 | cb.cb_recurse = 1; | |
1023 | cb.cb_doclones = 1; | |
1024 | break; | |
1025 | case '?': | |
1026 | default: | |
1027 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
1028 | optopt); | |
1029 | usage(B_FALSE); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | argc -= optind; | |
1034 | argv += optind; | |
1035 | ||
1036 | /* check number of arguments */ | |
1037 | if (argc == 0) { | |
1038 | (void) fprintf(stderr, gettext("missing path argument\n")); | |
1039 | usage(B_FALSE); | |
1040 | } | |
1041 | if (argc > 1) { | |
1042 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
1043 | usage(B_FALSE); | |
1044 | } | |
1045 | ||
1046 | /* | |
1047 | * If we are doing recursive destroy of a snapshot, then the | |
1048 | * named snapshot may not exist. Go straight to libzfs. | |
1049 | */ | |
1050 | if (cb.cb_recurse && (cp = strchr(argv[0], '@'))) { | |
1051 | int ret; | |
1052 | ||
1053 | *cp = '\0'; | |
1054 | if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) | |
1055 | return (1); | |
1056 | *cp = '@'; | |
1057 | cp++; | |
1058 | ||
1059 | if (cb.cb_doclones) { | |
1060 | boolean_t defer = cb.cb_defer_destroy; | |
1061 | ||
1062 | /* | |
1063 | * Temporarily ignore the defer_destroy setting since | |
1064 | * it's not supported for clones. | |
1065 | */ | |
1066 | cb.cb_defer_destroy = B_FALSE; | |
1067 | cb.cb_snapname = cp; | |
1068 | if (destroy_snap_clones(zhp, &cb) != 0) { | |
1069 | zfs_close(zhp); | |
1070 | return (1); | |
1071 | } | |
1072 | cb.cb_defer_destroy = defer; | |
1073 | } | |
1074 | ||
1075 | ret = zfs_destroy_snaps(zhp, cp, cb.cb_defer_destroy); | |
1076 | zfs_close(zhp); | |
1077 | if (ret) { | |
1078 | (void) fprintf(stderr, | |
1079 | gettext("no snapshots destroyed\n")); | |
1080 | } | |
1081 | return (ret != 0); | |
1082 | } | |
1083 | ||
1084 | /* Open the given dataset */ | |
1085 | if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) | |
1086 | return (1); | |
1087 | ||
1088 | cb.cb_target = zhp; | |
1089 | ||
1090 | /* | |
1091 | * Perform an explicit check for pools before going any further. | |
1092 | */ | |
1093 | if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && | |
1094 | zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { | |
1095 | (void) fprintf(stderr, gettext("cannot destroy '%s': " | |
1096 | "operation does not apply to pools\n"), | |
1097 | zfs_get_name(zhp)); | |
1098 | (void) fprintf(stderr, gettext("use 'zfs destroy -r " | |
1099 | "%s' to destroy all datasets in the pool\n"), | |
1100 | zfs_get_name(zhp)); | |
1101 | (void) fprintf(stderr, gettext("use 'zpool destroy %s' " | |
1102 | "to destroy the pool itself\n"), zfs_get_name(zhp)); | |
1103 | zfs_close(zhp); | |
1104 | return (1); | |
1105 | } | |
1106 | ||
1107 | /* | |
1108 | * Check for any dependents and/or clones. | |
1109 | */ | |
1110 | cb.cb_first = B_TRUE; | |
1111 | if (!cb.cb_doclones && !cb.cb_defer_destroy && | |
1112 | zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, | |
1113 | &cb) != 0) { | |
1114 | zfs_close(zhp); | |
1115 | return (1); | |
1116 | } | |
1117 | ||
1118 | if (cb.cb_error || (!cb.cb_defer_destroy && | |
1119 | (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, &cb) != 0))) { | |
1120 | zfs_close(zhp); | |
1121 | return (1); | |
1122 | } | |
1123 | ||
1124 | /* | |
1125 | * Do the real thing. The callback will close the handle regardless of | |
1126 | * whether it succeeds or not. | |
1127 | */ | |
1128 | ||
1129 | if (destroy_callback(zhp, &cb) != 0) | |
1130 | return (1); | |
1131 | ||
1132 | return (0); | |
1133 | } | |
1134 | ||
1135 | static boolean_t | |
1136 | is_recvd_column(zprop_get_cbdata_t *cbp) | |
1137 | { | |
1138 | int i; | |
1139 | zfs_get_column_t col; | |
1140 | ||
1141 | for (i = 0; i < ZFS_GET_NCOLS && | |
1142 | (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) | |
1143 | if (col == GET_COL_RECVD) | |
1144 | return (B_TRUE); | |
1145 | return (B_FALSE); | |
1146 | } | |
1147 | ||
1148 | /* | |
1149 | * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] | |
1150 | * < all | property[,property]... > < fs | snap | vol > ... | |
1151 | * | |
1152 | * -r recurse over any child datasets | |
1153 | * -H scripted mode. Headers are stripped, and fields are separated | |
1154 | * by tabs instead of spaces. | |
1155 | * -o Set of fields to display. One of "name,property,value, | |
1156 | * received,source". Default is "name,property,value,source". | |
1157 | * "all" is an alias for all five. | |
1158 | * -s Set of sources to allow. One of | |
1159 | * "local,default,inherited,received,temporary,none". Default is | |
1160 | * all six. | |
1161 | * -p Display values in parsable (literal) format. | |
1162 | * | |
1163 | * Prints properties for the given datasets. The user can control which | |
1164 | * columns to display as well as which property types to allow. | |
1165 | */ | |
1166 | ||
1167 | /* | |
1168 | * Invoked to display the properties for a single dataset. | |
1169 | */ | |
1170 | static int | |
1171 | get_callback(zfs_handle_t *zhp, void *data) | |
1172 | { | |
1173 | char buf[ZFS_MAXPROPLEN]; | |
1174 | char rbuf[ZFS_MAXPROPLEN]; | |
1175 | zprop_source_t sourcetype; | |
1176 | char source[ZFS_MAXNAMELEN]; | |
1177 | zprop_get_cbdata_t *cbp = data; | |
1178 | nvlist_t *user_props = zfs_get_user_props(zhp); | |
1179 | zprop_list_t *pl = cbp->cb_proplist; | |
1180 | nvlist_t *propval; | |
1181 | char *strval; | |
1182 | char *sourceval; | |
1183 | boolean_t received = is_recvd_column(cbp); | |
1184 | ||
1185 | for (; pl != NULL; pl = pl->pl_next) { | |
1186 | char *recvdval = NULL; | |
1187 | /* | |
1188 | * Skip the special fake placeholder. This will also skip over | |
1189 | * the name property when 'all' is specified. | |
1190 | */ | |
1191 | if (pl->pl_prop == ZFS_PROP_NAME && | |
1192 | pl == cbp->cb_proplist) | |
1193 | continue; | |
1194 | ||
1195 | if (pl->pl_prop != ZPROP_INVAL) { | |
1196 | if (zfs_prop_get(zhp, pl->pl_prop, buf, | |
1197 | sizeof (buf), &sourcetype, source, | |
1198 | sizeof (source), | |
1199 | cbp->cb_literal) != 0) { | |
1200 | if (pl->pl_all) | |
1201 | continue; | |
1202 | if (!zfs_prop_valid_for_type(pl->pl_prop, | |
1203 | ZFS_TYPE_DATASET)) { | |
1204 | (void) fprintf(stderr, | |
1205 | gettext("No such property '%s'\n"), | |
1206 | zfs_prop_to_name(pl->pl_prop)); | |
1207 | continue; | |
1208 | } | |
1209 | sourcetype = ZPROP_SRC_NONE; | |
1210 | (void) strlcpy(buf, "-", sizeof (buf)); | |
1211 | } | |
1212 | ||
1213 | if (received && (zfs_prop_get_recvd(zhp, | |
1214 | zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), | |
1215 | cbp->cb_literal) == 0)) | |
1216 | recvdval = rbuf; | |
1217 | ||
1218 | zprop_print_one_property(zfs_get_name(zhp), cbp, | |
1219 | zfs_prop_to_name(pl->pl_prop), | |
1220 | buf, sourcetype, source, recvdval); | |
1221 | } else if (zfs_prop_userquota(pl->pl_user_prop)) { | |
1222 | sourcetype = ZPROP_SRC_LOCAL; | |
1223 | ||
1224 | if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, | |
1225 | buf, sizeof (buf), cbp->cb_literal) != 0) { | |
1226 | sourcetype = ZPROP_SRC_NONE; | |
1227 | (void) strlcpy(buf, "-", sizeof (buf)); | |
1228 | } | |
1229 | ||
1230 | zprop_print_one_property(zfs_get_name(zhp), cbp, | |
1231 | pl->pl_user_prop, buf, sourcetype, source, NULL); | |
1232 | } else { | |
1233 | if (nvlist_lookup_nvlist(user_props, | |
1234 | pl->pl_user_prop, &propval) != 0) { | |
1235 | if (pl->pl_all) | |
1236 | continue; | |
1237 | sourcetype = ZPROP_SRC_NONE; | |
1238 | strval = "-"; | |
1239 | } else { | |
1240 | verify(nvlist_lookup_string(propval, | |
1241 | ZPROP_VALUE, &strval) == 0); | |
1242 | verify(nvlist_lookup_string(propval, | |
1243 | ZPROP_SOURCE, &sourceval) == 0); | |
1244 | ||
1245 | if (strcmp(sourceval, | |
1246 | zfs_get_name(zhp)) == 0) { | |
1247 | sourcetype = ZPROP_SRC_LOCAL; | |
1248 | } else if (strcmp(sourceval, | |
1249 | ZPROP_SOURCE_VAL_RECVD) == 0) { | |
1250 | sourcetype = ZPROP_SRC_RECEIVED; | |
1251 | } else { | |
1252 | sourcetype = ZPROP_SRC_INHERITED; | |
1253 | (void) strlcpy(source, | |
1254 | sourceval, sizeof (source)); | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | if (received && (zfs_prop_get_recvd(zhp, | |
1259 | pl->pl_user_prop, rbuf, sizeof (rbuf), | |
1260 | cbp->cb_literal) == 0)) | |
1261 | recvdval = rbuf; | |
1262 | ||
1263 | zprop_print_one_property(zfs_get_name(zhp), cbp, | |
1264 | pl->pl_user_prop, strval, sourcetype, | |
1265 | source, recvdval); | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | return (0); | |
1270 | } | |
1271 | ||
1272 | static int | |
1273 | zfs_do_get(int argc, char **argv) | |
1274 | { | |
1275 | zprop_get_cbdata_t cb = { 0 }; | |
1276 | int i, c, flags = 0; | |
1277 | char *value, *fields; | |
1278 | int ret; | |
1279 | int limit = 0; | |
1280 | zprop_list_t fake_name = { 0 }; | |
1281 | ||
1282 | /* | |
1283 | * Set up default columns and sources. | |
1284 | */ | |
1285 | cb.cb_sources = ZPROP_SRC_ALL; | |
1286 | cb.cb_columns[0] = GET_COL_NAME; | |
1287 | cb.cb_columns[1] = GET_COL_PROPERTY; | |
1288 | cb.cb_columns[2] = GET_COL_VALUE; | |
1289 | cb.cb_columns[3] = GET_COL_SOURCE; | |
1290 | cb.cb_type = ZFS_TYPE_DATASET; | |
1291 | ||
1292 | /* check options */ | |
1293 | while ((c = getopt(argc, argv, ":d:o:s:rHp")) != -1) { | |
1294 | switch (c) { | |
1295 | case 'p': | |
1296 | cb.cb_literal = B_TRUE; | |
1297 | break; | |
1298 | case 'd': | |
1299 | limit = parse_depth(optarg, &flags); | |
1300 | break; | |
1301 | case 'r': | |
1302 | flags |= ZFS_ITER_RECURSE; | |
1303 | break; | |
1304 | case 'H': | |
1305 | cb.cb_scripted = B_TRUE; | |
1306 | break; | |
1307 | case ':': | |
1308 | (void) fprintf(stderr, gettext("missing argument for " | |
1309 | "'%c' option\n"), optopt); | |
1310 | usage(B_FALSE); | |
1311 | break; | |
1312 | case 'o': | |
1313 | /* | |
1314 | * Process the set of columns to display. We zero out | |
1315 | * the structure to give us a blank slate. | |
1316 | */ | |
1317 | bzero(&cb.cb_columns, sizeof (cb.cb_columns)); | |
1318 | i = 0; | |
1319 | while (*optarg != '\0') { | |
1320 | static char *col_subopts[] = | |
1321 | { "name", "property", "value", "received", | |
1322 | "source", "all", NULL }; | |
1323 | ||
1324 | if (i == ZFS_GET_NCOLS) { | |
1325 | (void) fprintf(stderr, gettext("too " | |
1326 | "many fields given to -o " | |
1327 | "option\n")); | |
1328 | usage(B_FALSE); | |
1329 | } | |
1330 | ||
1331 | switch (getsubopt(&optarg, col_subopts, | |
1332 | &value)) { | |
1333 | case 0: | |
1334 | cb.cb_columns[i++] = GET_COL_NAME; | |
1335 | break; | |
1336 | case 1: | |
1337 | cb.cb_columns[i++] = GET_COL_PROPERTY; | |
1338 | break; | |
1339 | case 2: | |
1340 | cb.cb_columns[i++] = GET_COL_VALUE; | |
1341 | break; | |
1342 | case 3: | |
1343 | cb.cb_columns[i++] = GET_COL_RECVD; | |
1344 | flags |= ZFS_ITER_RECVD_PROPS; | |
1345 | break; | |
1346 | case 4: | |
1347 | cb.cb_columns[i++] = GET_COL_SOURCE; | |
1348 | break; | |
1349 | case 5: | |
1350 | if (i > 0) { | |
1351 | (void) fprintf(stderr, | |
1352 | gettext("\"all\" conflicts " | |
1353 | "with specific fields " | |
1354 | "given to -o option\n")); | |
1355 | usage(B_FALSE); | |
1356 | } | |
1357 | cb.cb_columns[0] = GET_COL_NAME; | |
1358 | cb.cb_columns[1] = GET_COL_PROPERTY; | |
1359 | cb.cb_columns[2] = GET_COL_VALUE; | |
1360 | cb.cb_columns[3] = GET_COL_RECVD; | |
1361 | cb.cb_columns[4] = GET_COL_SOURCE; | |
1362 | flags |= ZFS_ITER_RECVD_PROPS; | |
1363 | i = ZFS_GET_NCOLS; | |
1364 | break; | |
1365 | default: | |
1366 | (void) fprintf(stderr, | |
1367 | gettext("invalid column name " | |
1368 | "'%s'\n"), value); | |
1369 | usage(B_FALSE); | |
1370 | } | |
1371 | } | |
1372 | break; | |
1373 | ||
1374 | case 's': | |
1375 | cb.cb_sources = 0; | |
1376 | while (*optarg != '\0') { | |
1377 | static char *source_subopts[] = { | |
1378 | "local", "default", "inherited", | |
1379 | "received", "temporary", "none", | |
1380 | NULL }; | |
1381 | ||
1382 | switch (getsubopt(&optarg, source_subopts, | |
1383 | &value)) { | |
1384 | case 0: | |
1385 | cb.cb_sources |= ZPROP_SRC_LOCAL; | |
1386 | break; | |
1387 | case 1: | |
1388 | cb.cb_sources |= ZPROP_SRC_DEFAULT; | |
1389 | break; | |
1390 | case 2: | |
1391 | cb.cb_sources |= ZPROP_SRC_INHERITED; | |
1392 | break; | |
1393 | case 3: | |
1394 | cb.cb_sources |= ZPROP_SRC_RECEIVED; | |
1395 | break; | |
1396 | case 4: | |
1397 | cb.cb_sources |= ZPROP_SRC_TEMPORARY; | |
1398 | break; | |
1399 | case 5: | |
1400 | cb.cb_sources |= ZPROP_SRC_NONE; | |
1401 | break; | |
1402 | default: | |
1403 | (void) fprintf(stderr, | |
1404 | gettext("invalid source " | |
1405 | "'%s'\n"), value); | |
1406 | usage(B_FALSE); | |
1407 | } | |
1408 | } | |
1409 | break; | |
1410 | ||
1411 | case '?': | |
1412 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
1413 | optopt); | |
1414 | usage(B_FALSE); | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | argc -= optind; | |
1419 | argv += optind; | |
1420 | ||
1421 | if (argc < 1) { | |
1422 | (void) fprintf(stderr, gettext("missing property " | |
1423 | "argument\n")); | |
1424 | usage(B_FALSE); | |
1425 | } | |
1426 | ||
1427 | fields = argv[0]; | |
1428 | ||
1429 | if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) | |
1430 | != 0) | |
1431 | usage(B_FALSE); | |
1432 | ||
1433 | argc--; | |
1434 | argv++; | |
1435 | ||
1436 | /* | |
1437 | * As part of zfs_expand_proplist(), we keep track of the maximum column | |
1438 | * width for each property. For the 'NAME' (and 'SOURCE') columns, we | |
1439 | * need to know the maximum name length. However, the user likely did | |
1440 | * not specify 'name' as one of the properties to fetch, so we need to | |
1441 | * make sure we always include at least this property for | |
1442 | * print_get_headers() to work properly. | |
1443 | */ | |
1444 | if (cb.cb_proplist != NULL) { | |
1445 | fake_name.pl_prop = ZFS_PROP_NAME; | |
1446 | fake_name.pl_width = strlen(gettext("NAME")); | |
1447 | fake_name.pl_next = cb.cb_proplist; | |
1448 | cb.cb_proplist = &fake_name; | |
1449 | } | |
1450 | ||
1451 | cb.cb_first = B_TRUE; | |
1452 | ||
1453 | /* run for each object */ | |
1454 | ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, NULL, | |
1455 | &cb.cb_proplist, limit, get_callback, &cb); | |
1456 | ||
1457 | if (cb.cb_proplist == &fake_name) | |
1458 | zprop_free_list(fake_name.pl_next); | |
1459 | else | |
1460 | zprop_free_list(cb.cb_proplist); | |
1461 | ||
1462 | return (ret); | |
1463 | } | |
1464 | ||
1465 | /* | |
1466 | * inherit [-rS] <property> <fs|vol> ... | |
1467 | * | |
1468 | * -r Recurse over all children | |
1469 | * -S Revert to received value, if any | |
1470 | * | |
1471 | * For each dataset specified on the command line, inherit the given property | |
1472 | * from its parent. Inheriting a property at the pool level will cause it to | |
1473 | * use the default value. The '-r' flag will recurse over all children, and is | |
1474 | * useful for setting a property on a hierarchy-wide basis, regardless of any | |
1475 | * local modifications for each dataset. | |
1476 | */ | |
1477 | ||
1478 | typedef struct inherit_cbdata { | |
1479 | const char *cb_propname; | |
1480 | boolean_t cb_received; | |
1481 | } inherit_cbdata_t; | |
1482 | ||
1483 | static int | |
1484 | inherit_recurse_cb(zfs_handle_t *zhp, void *data) | |
1485 | { | |
1486 | inherit_cbdata_t *cb = data; | |
1487 | zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); | |
1488 | ||
1489 | /* | |
1490 | * If we're doing it recursively, then ignore properties that | |
1491 | * are not valid for this type of dataset. | |
1492 | */ | |
1493 | if (prop != ZPROP_INVAL && | |
1494 | !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) | |
1495 | return (0); | |
1496 | ||
1497 | return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); | |
1498 | } | |
1499 | ||
1500 | static int | |
1501 | inherit_cb(zfs_handle_t *zhp, void *data) | |
1502 | { | |
1503 | inherit_cbdata_t *cb = data; | |
1504 | ||
1505 | return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); | |
1506 | } | |
1507 | ||
1508 | static int | |
1509 | zfs_do_inherit(int argc, char **argv) | |
1510 | { | |
1511 | int c; | |
1512 | zfs_prop_t prop; | |
1513 | inherit_cbdata_t cb = { 0 }; | |
1514 | char *propname; | |
1515 | int ret; | |
1516 | int flags = 0; | |
1517 | boolean_t received = B_FALSE; | |
1518 | ||
1519 | /* check options */ | |
1520 | while ((c = getopt(argc, argv, "rS")) != -1) { | |
1521 | switch (c) { | |
1522 | case 'r': | |
1523 | flags |= ZFS_ITER_RECURSE; | |
1524 | break; | |
1525 | case 'S': | |
1526 | received = B_TRUE; | |
1527 | break; | |
1528 | case '?': | |
1529 | default: | |
1530 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
1531 | optopt); | |
1532 | usage(B_FALSE); | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | argc -= optind; | |
1537 | argv += optind; | |
1538 | ||
1539 | /* check number of arguments */ | |
1540 | if (argc < 1) { | |
1541 | (void) fprintf(stderr, gettext("missing property argument\n")); | |
1542 | usage(B_FALSE); | |
1543 | } | |
1544 | if (argc < 2) { | |
1545 | (void) fprintf(stderr, gettext("missing dataset argument\n")); | |
1546 | usage(B_FALSE); | |
1547 | } | |
1548 | ||
1549 | propname = argv[0]; | |
1550 | argc--; | |
1551 | argv++; | |
1552 | ||
1553 | if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { | |
1554 | if (zfs_prop_readonly(prop)) { | |
1555 | (void) fprintf(stderr, gettext( | |
1556 | "%s property is read-only\n"), | |
1557 | propname); | |
1558 | return (1); | |
1559 | } | |
1560 | if (!zfs_prop_inheritable(prop) && !received) { | |
1561 | (void) fprintf(stderr, gettext("'%s' property cannot " | |
1562 | "be inherited\n"), propname); | |
1563 | if (prop == ZFS_PROP_QUOTA || | |
1564 | prop == ZFS_PROP_RESERVATION || | |
1565 | prop == ZFS_PROP_REFQUOTA || | |
1566 | prop == ZFS_PROP_REFRESERVATION) | |
1567 | (void) fprintf(stderr, gettext("use 'zfs set " | |
1568 | "%s=none' to clear\n"), propname); | |
1569 | return (1); | |
1570 | } | |
1571 | if (received && (prop == ZFS_PROP_VOLSIZE || | |
1572 | prop == ZFS_PROP_VERSION)) { | |
1573 | (void) fprintf(stderr, gettext("'%s' property cannot " | |
1574 | "be reverted to a received value\n"), propname); | |
1575 | return (1); | |
1576 | } | |
1577 | } else if (!zfs_prop_user(propname)) { | |
1578 | (void) fprintf(stderr, gettext("invalid property '%s'\n"), | |
1579 | propname); | |
1580 | usage(B_FALSE); | |
1581 | } | |
1582 | ||
1583 | cb.cb_propname = propname; | |
1584 | cb.cb_received = received; | |
1585 | ||
1586 | if (flags & ZFS_ITER_RECURSE) { | |
1587 | ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, | |
1588 | NULL, NULL, 0, inherit_recurse_cb, &cb); | |
1589 | } else { | |
1590 | ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, | |
1591 | NULL, NULL, 0, inherit_cb, &cb); | |
1592 | } | |
1593 | ||
1594 | return (ret); | |
1595 | } | |
1596 | ||
1597 | typedef struct upgrade_cbdata { | |
1598 | uint64_t cb_numupgraded; | |
1599 | uint64_t cb_numsamegraded; | |
1600 | uint64_t cb_numfailed; | |
1601 | uint64_t cb_version; | |
1602 | boolean_t cb_newer; | |
1603 | boolean_t cb_foundone; | |
1604 | char cb_lastfs[ZFS_MAXNAMELEN]; | |
1605 | } upgrade_cbdata_t; | |
1606 | ||
1607 | static int | |
1608 | same_pool(zfs_handle_t *zhp, const char *name) | |
1609 | { | |
1610 | int len1 = strcspn(name, "/@"); | |
1611 | const char *zhname = zfs_get_name(zhp); | |
1612 | int len2 = strcspn(zhname, "/@"); | |
1613 | ||
1614 | if (len1 != len2) | |
1615 | return (B_FALSE); | |
1616 | return (strncmp(name, zhname, len1) == 0); | |
1617 | } | |
1618 | ||
1619 | static int | |
1620 | upgrade_list_callback(zfs_handle_t *zhp, void *data) | |
1621 | { | |
1622 | upgrade_cbdata_t *cb = data; | |
1623 | int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
1624 | ||
1625 | /* list if it's old/new */ | |
1626 | if ((!cb->cb_newer && version < ZPL_VERSION) || | |
1627 | (cb->cb_newer && version > ZPL_VERSION)) { | |
1628 | char *str; | |
1629 | if (cb->cb_newer) { | |
1630 | str = gettext("The following filesystems are " | |
1631 | "formatted using a newer software version and\n" | |
1632 | "cannot be accessed on the current system.\n\n"); | |
1633 | } else { | |
1634 | str = gettext("The following filesystems are " | |
1635 | "out of date, and can be upgraded. After being\n" | |
1636 | "upgraded, these filesystems (and any 'zfs send' " | |
1637 | "streams generated from\n" | |
1638 | "subsequent snapshots) will no longer be " | |
1639 | "accessible by older software versions.\n\n"); | |
1640 | } | |
1641 | ||
1642 | if (!cb->cb_foundone) { | |
1643 | (void) puts(str); | |
1644 | (void) printf(gettext("VER FILESYSTEM\n")); | |
1645 | (void) printf(gettext("--- ------------\n")); | |
1646 | cb->cb_foundone = B_TRUE; | |
1647 | } | |
1648 | ||
1649 | (void) printf("%2u %s\n", version, zfs_get_name(zhp)); | |
1650 | } | |
1651 | ||
1652 | return (0); | |
1653 | } | |
1654 | ||
1655 | static int | |
1656 | upgrade_set_callback(zfs_handle_t *zhp, void *data) | |
1657 | { | |
1658 | upgrade_cbdata_t *cb = data; | |
1659 | int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
1660 | int needed_spa_version; | |
1661 | int spa_version; | |
1662 | ||
1663 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
1664 | return (-1); | |
1665 | ||
1666 | needed_spa_version = zfs_spa_version_map(cb->cb_version); | |
1667 | ||
1668 | if (needed_spa_version < 0) | |
1669 | return (-1); | |
1670 | ||
1671 | if (spa_version < needed_spa_version) { | |
1672 | /* can't upgrade */ | |
1673 | (void) printf(gettext("%s: can not be " | |
1674 | "upgraded; the pool version needs to first " | |
1675 | "be upgraded\nto version %d\n\n"), | |
1676 | zfs_get_name(zhp), needed_spa_version); | |
1677 | cb->cb_numfailed++; | |
1678 | return (0); | |
1679 | } | |
1680 | ||
1681 | /* upgrade */ | |
1682 | if (version < cb->cb_version) { | |
1683 | char verstr[16]; | |
1684 | (void) snprintf(verstr, sizeof (verstr), | |
1685 | "%llu", (u_longlong_t)cb->cb_version); | |
1686 | if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { | |
1687 | /* | |
1688 | * If they did "zfs upgrade -a", then we could | |
1689 | * be doing ioctls to different pools. We need | |
1690 | * to log this history once to each pool. | |
1691 | */ | |
1692 | verify(zpool_stage_history(g_zfs, history_str) == 0); | |
1693 | } | |
1694 | if (zfs_prop_set(zhp, "version", verstr) == 0) | |
1695 | cb->cb_numupgraded++; | |
1696 | else | |
1697 | cb->cb_numfailed++; | |
1698 | (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); | |
1699 | } else if (version > cb->cb_version) { | |
1700 | /* can't downgrade */ | |
1701 | (void) printf(gettext("%s: can not be downgraded; " | |
1702 | "it is already at version %u\n"), | |
1703 | zfs_get_name(zhp), version); | |
1704 | cb->cb_numfailed++; | |
1705 | } else { | |
1706 | cb->cb_numsamegraded++; | |
1707 | } | |
1708 | return (0); | |
1709 | } | |
1710 | ||
1711 | /* | |
1712 | * zfs upgrade | |
1713 | * zfs upgrade -v | |
1714 | * zfs upgrade [-r] [-V <version>] <-a | filesystem> | |
1715 | */ | |
1716 | static int | |
1717 | zfs_do_upgrade(int argc, char **argv) | |
1718 | { | |
1719 | boolean_t all = B_FALSE; | |
1720 | boolean_t showversions = B_FALSE; | |
1721 | int ret; | |
1722 | upgrade_cbdata_t cb = { 0 }; | |
1723 | signed char c; | |
1724 | int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; | |
1725 | ||
1726 | /* check options */ | |
1727 | while ((c = getopt(argc, argv, "rvV:a")) != -1) { | |
1728 | switch (c) { | |
1729 | case 'r': | |
1730 | flags |= ZFS_ITER_RECURSE; | |
1731 | break; | |
1732 | case 'v': | |
1733 | showversions = B_TRUE; | |
1734 | break; | |
1735 | case 'V': | |
1736 | if (zfs_prop_string_to_index(ZFS_PROP_VERSION, | |
1737 | optarg, &cb.cb_version) != 0) { | |
1738 | (void) fprintf(stderr, | |
1739 | gettext("invalid version %s\n"), optarg); | |
1740 | usage(B_FALSE); | |
1741 | } | |
1742 | break; | |
1743 | case 'a': | |
1744 | all = B_TRUE; | |
1745 | break; | |
1746 | case '?': | |
1747 | default: | |
1748 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
1749 | optopt); | |
1750 | usage(B_FALSE); | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | argc -= optind; | |
1755 | argv += optind; | |
1756 | ||
1757 | if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) | |
1758 | usage(B_FALSE); | |
1759 | if (showversions && (flags & ZFS_ITER_RECURSE || all || | |
1760 | cb.cb_version || argc)) | |
1761 | usage(B_FALSE); | |
1762 | if ((all || argc) && (showversions)) | |
1763 | usage(B_FALSE); | |
1764 | if (all && argc) | |
1765 | usage(B_FALSE); | |
1766 | ||
1767 | if (showversions) { | |
1768 | /* Show info on available versions. */ | |
1769 | (void) printf(gettext("The following filesystem versions are " | |
1770 | "supported:\n\n")); | |
1771 | (void) printf(gettext("VER DESCRIPTION\n")); | |
1772 | (void) printf("--- -----------------------------------------" | |
1773 | "---------------\n"); | |
1774 | (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); | |
1775 | (void) printf(gettext(" 2 Enhanced directory entries\n")); | |
1776 | (void) printf(gettext(" 3 Case insensitive and File system " | |
1777 | "unique identifier (FUID)\n")); | |
1778 | (void) printf(gettext(" 4 userquota, groupquota " | |
1779 | "properties\n")); | |
1780 | (void) printf(gettext(" 5 System attributes\n")); | |
1781 | (void) printf(gettext("\nFor more information on a particular " | |
1782 | "version, including supported releases,\n")); | |
1783 | (void) printf("see the ZFS Administration Guide.\n\n"); | |
1784 | ret = 0; | |
1785 | } else if (argc || all) { | |
1786 | /* Upgrade filesystems */ | |
1787 | if (cb.cb_version == 0) | |
1788 | cb.cb_version = ZPL_VERSION; | |
1789 | ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, | |
1790 | NULL, NULL, 0, upgrade_set_callback, &cb); | |
1791 | (void) printf(gettext("%llu filesystems upgraded\n"), | |
1792 | (u_longlong_t)cb.cb_numupgraded); | |
1793 | if (cb.cb_numsamegraded) { | |
1794 | (void) printf(gettext("%llu filesystems already at " | |
1795 | "this version\n"), | |
1796 | (u_longlong_t)cb.cb_numsamegraded); | |
1797 | } | |
1798 | if (cb.cb_numfailed != 0) | |
1799 | ret = 1; | |
1800 | } else { | |
1801 | /* List old-version filesytems */ | |
1802 | boolean_t found; | |
1803 | (void) printf(gettext("This system is currently running " | |
1804 | "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); | |
1805 | ||
1806 | flags |= ZFS_ITER_RECURSE; | |
1807 | ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, | |
1808 | NULL, NULL, 0, upgrade_list_callback, &cb); | |
1809 | ||
1810 | found = cb.cb_foundone; | |
1811 | cb.cb_foundone = B_FALSE; | |
1812 | cb.cb_newer = B_TRUE; | |
1813 | ||
1814 | ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, | |
1815 | NULL, NULL, 0, upgrade_list_callback, &cb); | |
1816 | ||
1817 | if (!cb.cb_foundone && !found) { | |
1818 | (void) printf(gettext("All filesystems are " | |
1819 | "formatted with the current version.\n")); | |
1820 | } | |
1821 | } | |
1822 | ||
1823 | return (ret); | |
1824 | } | |
1825 | ||
1826 | /* | |
1827 | * zfs userspace | |
1828 | */ | |
1829 | static int | |
1830 | userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) | |
1831 | { | |
1832 | zfs_userquota_prop_t *typep = arg; | |
1833 | zfs_userquota_prop_t p = *typep; | |
1834 | char *name = NULL; | |
1835 | char *ug, *propname; | |
1836 | char namebuf[32]; | |
1837 | char sizebuf[32]; | |
1838 | ||
1839 | if (domain == NULL || domain[0] == '\0') { | |
1840 | if (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) { | |
1841 | struct group *g = getgrgid(rid); | |
1842 | if (g) | |
1843 | name = g->gr_name; | |
1844 | } else { | |
1845 | struct passwd *p = getpwuid(rid); | |
1846 | if (p) | |
1847 | name = p->pw_name; | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | if (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) | |
1852 | ug = "group"; | |
1853 | else | |
1854 | ug = "user"; | |
1855 | ||
1856 | if (p == ZFS_PROP_USERUSED || p == ZFS_PROP_GROUPUSED) | |
1857 | propname = "used"; | |
1858 | else | |
1859 | propname = "quota"; | |
1860 | ||
1861 | if (name == NULL) { | |
1862 | (void) snprintf(namebuf, sizeof (namebuf), | |
1863 | "%llu", (longlong_t)rid); | |
1864 | name = namebuf; | |
1865 | } | |
1866 | zfs_nicenum(space, sizebuf, sizeof (sizebuf)); | |
1867 | ||
1868 | (void) printf("%s %s %s%c%s %s\n", propname, ug, domain, | |
1869 | domain[0] ? '-' : ' ', name, sizebuf); | |
1870 | ||
1871 | return (0); | |
1872 | } | |
1873 | ||
1874 | static int | |
1875 | zfs_do_userspace(int argc, char **argv) | |
1876 | { | |
1877 | zfs_handle_t *zhp; | |
1878 | zfs_userquota_prop_t p; | |
1879 | int error; | |
1880 | ||
1881 | /* | |
1882 | * Try the python version. If the execv fails, we'll continue | |
1883 | * and do a simplistic implementation. | |
1884 | */ | |
1885 | (void) execv(pypath, argv-1); | |
1886 | ||
1887 | (void) printf("internal error: %s not found\n" | |
1888 | "falling back on built-in implementation, " | |
1889 | "some features will not work\n", pypath); | |
1890 | ||
1891 | if ((zhp = zfs_open(g_zfs, argv[argc-1], ZFS_TYPE_DATASET)) == NULL) | |
1892 | return (1); | |
1893 | ||
1894 | (void) printf("PROP TYPE NAME VALUE\n"); | |
1895 | ||
1896 | for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { | |
1897 | error = zfs_userspace(zhp, p, userspace_cb, &p); | |
1898 | if (error) | |
1899 | break; | |
1900 | } | |
1901 | return (error); | |
1902 | } | |
1903 | ||
1904 | /* | |
1905 | * list [-r][-d max] [-H] [-o property[,property]...] [-t type[,type]...] | |
1906 | * [-s property [-s property]...] [-S property [-S property]...] | |
1907 | * <dataset> ... | |
1908 | * | |
1909 | * -r Recurse over all children | |
1910 | * -d Limit recursion by depth. | |
1911 | * -H Scripted mode; elide headers and separate columns by tabs | |
1912 | * -o Control which fields to display. | |
1913 | * -t Control which object types to display. | |
1914 | * -s Specify sort columns, descending order. | |
1915 | * -S Specify sort columns, ascending order. | |
1916 | * | |
1917 | * When given no arguments, lists all filesystems in the system. | |
1918 | * Otherwise, list the specified datasets, optionally recursing down them if | |
1919 | * '-r' is specified. | |
1920 | */ | |
1921 | typedef struct list_cbdata { | |
1922 | boolean_t cb_first; | |
1923 | boolean_t cb_scripted; | |
1924 | zprop_list_t *cb_proplist; | |
1925 | } list_cbdata_t; | |
1926 | ||
1927 | /* | |
1928 | * Given a list of columns to display, output appropriate headers for each one. | |
1929 | */ | |
1930 | static void | |
1931 | print_header(zprop_list_t *pl) | |
1932 | { | |
1933 | char headerbuf[ZFS_MAXPROPLEN]; | |
1934 | const char *header; | |
1935 | int i; | |
1936 | boolean_t first = B_TRUE; | |
1937 | boolean_t right_justify; | |
1938 | ||
1939 | for (; pl != NULL; pl = pl->pl_next) { | |
1940 | if (!first) { | |
1941 | (void) printf(" "); | |
1942 | } else { | |
1943 | first = B_FALSE; | |
1944 | } | |
1945 | ||
1946 | right_justify = B_FALSE; | |
1947 | if (pl->pl_prop != ZPROP_INVAL) { | |
1948 | header = zfs_prop_column_name(pl->pl_prop); | |
1949 | right_justify = zfs_prop_align_right(pl->pl_prop); | |
1950 | } else { | |
1951 | for (i = 0; pl->pl_user_prop[i] != '\0'; i++) | |
1952 | headerbuf[i] = toupper(pl->pl_user_prop[i]); | |
1953 | headerbuf[i] = '\0'; | |
1954 | header = headerbuf; | |
1955 | } | |
1956 | ||
1957 | if (pl->pl_next == NULL && !right_justify) | |
1958 | (void) printf("%s", header); | |
1959 | else if (right_justify) | |
1960 | (void) printf("%*s", (int)pl->pl_width, header); | |
1961 | else | |
1962 | (void) printf("%-*s", (int)pl->pl_width, header); | |
1963 | } | |
1964 | ||
1965 | (void) printf("\n"); | |
1966 | } | |
1967 | ||
1968 | /* | |
1969 | * Given a dataset and a list of fields, print out all the properties according | |
1970 | * to the described layout. | |
1971 | */ | |
1972 | static void | |
1973 | print_dataset(zfs_handle_t *zhp, zprop_list_t *pl, boolean_t scripted) | |
1974 | { | |
1975 | boolean_t first = B_TRUE; | |
1976 | char property[ZFS_MAXPROPLEN]; | |
1977 | nvlist_t *userprops = zfs_get_user_props(zhp); | |
1978 | nvlist_t *propval; | |
1979 | char *propstr; | |
1980 | boolean_t right_justify; | |
1981 | int width; | |
1982 | ||
1983 | for (; pl != NULL; pl = pl->pl_next) { | |
1984 | if (!first) { | |
1985 | if (scripted) | |
1986 | (void) printf("\t"); | |
1987 | else | |
1988 | (void) printf(" "); | |
1989 | } else { | |
1990 | first = B_FALSE; | |
1991 | } | |
1992 | ||
1993 | if (pl->pl_prop != ZPROP_INVAL) { | |
1994 | if (zfs_prop_get(zhp, pl->pl_prop, property, | |
1995 | sizeof (property), NULL, NULL, 0, B_FALSE) != 0) | |
1996 | propstr = "-"; | |
1997 | else | |
1998 | propstr = property; | |
1999 | ||
2000 | right_justify = zfs_prop_align_right(pl->pl_prop); | |
2001 | } else if (zfs_prop_userquota(pl->pl_user_prop)) { | |
2002 | if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, | |
2003 | property, sizeof (property), B_FALSE) != 0) | |
2004 | propstr = "-"; | |
2005 | else | |
2006 | propstr = property; | |
2007 | right_justify = B_TRUE; | |
2008 | } else { | |
2009 | if (nvlist_lookup_nvlist(userprops, | |
2010 | pl->pl_user_prop, &propval) != 0) | |
2011 | propstr = "-"; | |
2012 | else | |
2013 | verify(nvlist_lookup_string(propval, | |
2014 | ZPROP_VALUE, &propstr) == 0); | |
2015 | right_justify = B_FALSE; | |
2016 | } | |
2017 | ||
2018 | width = pl->pl_width; | |
2019 | ||
2020 | /* | |
2021 | * If this is being called in scripted mode, or if this is the | |
2022 | * last column and it is left-justified, don't include a width | |
2023 | * format specifier. | |
2024 | */ | |
2025 | if (scripted || (pl->pl_next == NULL && !right_justify)) | |
2026 | (void) printf("%s", propstr); | |
2027 | else if (right_justify) | |
2028 | (void) printf("%*s", width, propstr); | |
2029 | else | |
2030 | (void) printf("%-*s", width, propstr); | |
2031 | } | |
2032 | ||
2033 | (void) printf("\n"); | |
2034 | } | |
2035 | ||
2036 | /* | |
2037 | * Generic callback function to list a dataset or snapshot. | |
2038 | */ | |
2039 | static int | |
2040 | list_callback(zfs_handle_t *zhp, void *data) | |
2041 | { | |
2042 | list_cbdata_t *cbp = data; | |
2043 | ||
2044 | if (cbp->cb_first) { | |
2045 | if (!cbp->cb_scripted) | |
2046 | print_header(cbp->cb_proplist); | |
2047 | cbp->cb_first = B_FALSE; | |
2048 | } | |
2049 | ||
2050 | print_dataset(zhp, cbp->cb_proplist, cbp->cb_scripted); | |
2051 | ||
2052 | return (0); | |
2053 | } | |
2054 | ||
2055 | static int | |
2056 | zfs_do_list(int argc, char **argv) | |
2057 | { | |
2058 | int c; | |
2059 | boolean_t scripted = B_FALSE; | |
2060 | static char default_fields[] = | |
2061 | "name,used,available,referenced,mountpoint"; | |
2062 | int types = ZFS_TYPE_DATASET; | |
2063 | boolean_t types_specified = B_FALSE; | |
2064 | char *fields = NULL; | |
2065 | list_cbdata_t cb = { 0 }; | |
2066 | char *value; | |
2067 | int limit = 0; | |
2068 | int ret; | |
2069 | zfs_sort_column_t *sortcol = NULL; | |
2070 | int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; | |
2071 | ||
2072 | /* check options */ | |
2073 | while ((c = getopt(argc, argv, ":d:o:rt:Hs:S:")) != -1) { | |
2074 | switch (c) { | |
2075 | case 'o': | |
2076 | fields = optarg; | |
2077 | break; | |
2078 | case 'd': | |
2079 | limit = parse_depth(optarg, &flags); | |
2080 | break; | |
2081 | case 'r': | |
2082 | flags |= ZFS_ITER_RECURSE; | |
2083 | break; | |
2084 | case 'H': | |
2085 | scripted = B_TRUE; | |
2086 | break; | |
2087 | case 's': | |
2088 | if (zfs_add_sort_column(&sortcol, optarg, | |
2089 | B_FALSE) != 0) { | |
2090 | (void) fprintf(stderr, | |
2091 | gettext("invalid property '%s'\n"), optarg); | |
2092 | usage(B_FALSE); | |
2093 | } | |
2094 | break; | |
2095 | case 'S': | |
2096 | if (zfs_add_sort_column(&sortcol, optarg, | |
2097 | B_TRUE) != 0) { | |
2098 | (void) fprintf(stderr, | |
2099 | gettext("invalid property '%s'\n"), optarg); | |
2100 | usage(B_FALSE); | |
2101 | } | |
2102 | break; | |
2103 | case 't': | |
2104 | types = 0; | |
2105 | types_specified = B_TRUE; | |
2106 | flags &= ~ZFS_ITER_PROP_LISTSNAPS; | |
2107 | while (*optarg != '\0') { | |
2108 | static char *type_subopts[] = { "filesystem", | |
2109 | "volume", "snapshot", "all", NULL }; | |
2110 | ||
2111 | switch (getsubopt(&optarg, type_subopts, | |
2112 | &value)) { | |
2113 | case 0: | |
2114 | types |= ZFS_TYPE_FILESYSTEM; | |
2115 | break; | |
2116 | case 1: | |
2117 | types |= ZFS_TYPE_VOLUME; | |
2118 | break; | |
2119 | case 2: | |
2120 | types |= ZFS_TYPE_SNAPSHOT; | |
2121 | break; | |
2122 | case 3: | |
2123 | types = ZFS_TYPE_DATASET; | |
2124 | break; | |
2125 | ||
2126 | default: | |
2127 | (void) fprintf(stderr, | |
2128 | gettext("invalid type '%s'\n"), | |
2129 | value); | |
2130 | usage(B_FALSE); | |
2131 | } | |
2132 | } | |
2133 | break; | |
2134 | case ':': | |
2135 | (void) fprintf(stderr, gettext("missing argument for " | |
2136 | "'%c' option\n"), optopt); | |
2137 | usage(B_FALSE); | |
2138 | break; | |
2139 | case '?': | |
2140 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2141 | optopt); | |
2142 | usage(B_FALSE); | |
2143 | } | |
2144 | } | |
2145 | ||
2146 | argc -= optind; | |
2147 | argv += optind; | |
2148 | ||
2149 | if (fields == NULL) | |
2150 | fields = default_fields; | |
2151 | ||
2152 | /* | |
2153 | * If "-o space" and no types were specified, don't display snapshots. | |
2154 | */ | |
2155 | if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) | |
2156 | types &= ~ZFS_TYPE_SNAPSHOT; | |
2157 | ||
2158 | /* | |
2159 | * If the user specifies '-o all', the zprop_get_list() doesn't | |
2160 | * normally include the name of the dataset. For 'zfs list', we always | |
2161 | * want this property to be first. | |
2162 | */ | |
2163 | if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) | |
2164 | != 0) | |
2165 | usage(B_FALSE); | |
2166 | ||
2167 | cb.cb_scripted = scripted; | |
2168 | cb.cb_first = B_TRUE; | |
2169 | ||
2170 | ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, | |
2171 | limit, list_callback, &cb); | |
2172 | ||
2173 | zprop_free_list(cb.cb_proplist); | |
2174 | zfs_free_sort_columns(sortcol); | |
2175 | ||
2176 | if (ret == 0 && cb.cb_first && !cb.cb_scripted) | |
2177 | (void) printf(gettext("no datasets available\n")); | |
2178 | ||
2179 | return (ret); | |
2180 | } | |
2181 | ||
2182 | /* | |
2183 | * zfs rename <fs | snap | vol> <fs | snap | vol> | |
2184 | * zfs rename -p <fs | vol> <fs | vol> | |
2185 | * zfs rename -r <snap> <snap> | |
2186 | * | |
2187 | * Renames the given dataset to another of the same type. | |
2188 | * | |
2189 | * The '-p' flag creates all the non-existing ancestors of the target first. | |
2190 | */ | |
2191 | /* ARGSUSED */ | |
2192 | static int | |
2193 | zfs_do_rename(int argc, char **argv) | |
2194 | { | |
2195 | zfs_handle_t *zhp; | |
2196 | int c; | |
2197 | int ret; | |
2198 | boolean_t recurse = B_FALSE; | |
2199 | boolean_t parents = B_FALSE; | |
2200 | ||
2201 | /* check options */ | |
2202 | while ((c = getopt(argc, argv, "pr")) != -1) { | |
2203 | switch (c) { | |
2204 | case 'p': | |
2205 | parents = B_TRUE; | |
2206 | break; | |
2207 | case 'r': | |
2208 | recurse = B_TRUE; | |
2209 | break; | |
2210 | case '?': | |
2211 | default: | |
2212 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2213 | optopt); | |
2214 | usage(B_FALSE); | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | argc -= optind; | |
2219 | argv += optind; | |
2220 | ||
2221 | /* check number of arguments */ | |
2222 | if (argc < 1) { | |
2223 | (void) fprintf(stderr, gettext("missing source dataset " | |
2224 | "argument\n")); | |
2225 | usage(B_FALSE); | |
2226 | } | |
2227 | if (argc < 2) { | |
2228 | (void) fprintf(stderr, gettext("missing target dataset " | |
2229 | "argument\n")); | |
2230 | usage(B_FALSE); | |
2231 | } | |
2232 | if (argc > 2) { | |
2233 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2234 | usage(B_FALSE); | |
2235 | } | |
2236 | ||
2237 | if (recurse && parents) { | |
2238 | (void) fprintf(stderr, gettext("-p and -r options are mutually " | |
2239 | "exclusive\n")); | |
2240 | usage(B_FALSE); | |
2241 | } | |
2242 | ||
2243 | if (recurse && strchr(argv[0], '@') == 0) { | |
2244 | (void) fprintf(stderr, gettext("source dataset for recursive " | |
2245 | "rename must be a snapshot\n")); | |
2246 | usage(B_FALSE); | |
2247 | } | |
2248 | ||
2249 | if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | | |
2250 | ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) | |
2251 | return (1); | |
2252 | ||
2253 | /* If we were asked and the name looks good, try to create ancestors. */ | |
2254 | if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && | |
2255 | zfs_create_ancestors(g_zfs, argv[1]) != 0) { | |
2256 | zfs_close(zhp); | |
2257 | return (1); | |
2258 | } | |
2259 | ||
2260 | ret = (zfs_rename(zhp, argv[1], recurse) != 0); | |
2261 | ||
2262 | zfs_close(zhp); | |
2263 | return (ret); | |
2264 | } | |
2265 | ||
2266 | /* | |
2267 | * zfs promote <fs> | |
2268 | * | |
2269 | * Promotes the given clone fs to be the parent | |
2270 | */ | |
2271 | /* ARGSUSED */ | |
2272 | static int | |
2273 | zfs_do_promote(int argc, char **argv) | |
2274 | { | |
2275 | zfs_handle_t *zhp; | |
2276 | int ret; | |
2277 | ||
2278 | /* check options */ | |
2279 | if (argc > 1 && argv[1][0] == '-') { | |
2280 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2281 | argv[1][1]); | |
2282 | usage(B_FALSE); | |
2283 | } | |
2284 | ||
2285 | /* check number of arguments */ | |
2286 | if (argc < 2) { | |
2287 | (void) fprintf(stderr, gettext("missing clone filesystem" | |
2288 | " argument\n")); | |
2289 | usage(B_FALSE); | |
2290 | } | |
2291 | if (argc > 2) { | |
2292 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2293 | usage(B_FALSE); | |
2294 | } | |
2295 | ||
2296 | zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
2297 | if (zhp == NULL) | |
2298 | return (1); | |
2299 | ||
2300 | ret = (zfs_promote(zhp) != 0); | |
2301 | ||
2302 | ||
2303 | zfs_close(zhp); | |
2304 | return (ret); | |
2305 | } | |
2306 | ||
2307 | /* | |
2308 | * zfs rollback [-rRf] <snapshot> | |
2309 | * | |
2310 | * -r Delete any intervening snapshots before doing rollback | |
2311 | * -R Delete any snapshots and their clones | |
2312 | * -f ignored for backwards compatability | |
2313 | * | |
2314 | * Given a filesystem, rollback to a specific snapshot, discarding any changes | |
2315 | * since then and making it the active dataset. If more recent snapshots exist, | |
2316 | * the command will complain unless the '-r' flag is given. | |
2317 | */ | |
2318 | typedef struct rollback_cbdata { | |
2319 | uint64_t cb_create; | |
2320 | boolean_t cb_first; | |
2321 | int cb_doclones; | |
2322 | char *cb_target; | |
2323 | int cb_error; | |
2324 | boolean_t cb_recurse; | |
2325 | boolean_t cb_dependent; | |
2326 | } rollback_cbdata_t; | |
2327 | ||
2328 | /* | |
2329 | * Report any snapshots more recent than the one specified. Used when '-r' is | |
2330 | * not specified. We reuse this same callback for the snapshot dependents - if | |
2331 | * 'cb_dependent' is set, then this is a dependent and we should report it | |
2332 | * without checking the transaction group. | |
2333 | */ | |
2334 | static int | |
2335 | rollback_check(zfs_handle_t *zhp, void *data) | |
2336 | { | |
2337 | rollback_cbdata_t *cbp = data; | |
2338 | ||
2339 | if (cbp->cb_doclones) { | |
2340 | zfs_close(zhp); | |
2341 | return (0); | |
2342 | } | |
2343 | ||
2344 | if (!cbp->cb_dependent) { | |
2345 | if (strcmp(zfs_get_name(zhp), cbp->cb_target) != 0 && | |
2346 | zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && | |
2347 | zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > | |
2348 | cbp->cb_create) { | |
2349 | ||
2350 | if (cbp->cb_first && !cbp->cb_recurse) { | |
2351 | (void) fprintf(stderr, gettext("cannot " | |
2352 | "rollback to '%s': more recent snapshots " | |
2353 | "exist\n"), | |
2354 | cbp->cb_target); | |
2355 | (void) fprintf(stderr, gettext("use '-r' to " | |
2356 | "force deletion of the following " | |
2357 | "snapshots:\n")); | |
2358 | cbp->cb_first = 0; | |
2359 | cbp->cb_error = 1; | |
2360 | } | |
2361 | ||
2362 | if (cbp->cb_recurse) { | |
2363 | cbp->cb_dependent = B_TRUE; | |
2364 | if (zfs_iter_dependents(zhp, B_TRUE, | |
2365 | rollback_check, cbp) != 0) { | |
2366 | zfs_close(zhp); | |
2367 | return (-1); | |
2368 | } | |
2369 | cbp->cb_dependent = B_FALSE; | |
2370 | } else { | |
2371 | (void) fprintf(stderr, "%s\n", | |
2372 | zfs_get_name(zhp)); | |
2373 | } | |
2374 | } | |
2375 | } else { | |
2376 | if (cbp->cb_first && cbp->cb_recurse) { | |
2377 | (void) fprintf(stderr, gettext("cannot rollback to " | |
2378 | "'%s': clones of previous snapshots exist\n"), | |
2379 | cbp->cb_target); | |
2380 | (void) fprintf(stderr, gettext("use '-R' to " | |
2381 | "force deletion of the following clones and " | |
2382 | "dependents:\n")); | |
2383 | cbp->cb_first = 0; | |
2384 | cbp->cb_error = 1; | |
2385 | } | |
2386 | ||
2387 | (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); | |
2388 | } | |
2389 | ||
2390 | zfs_close(zhp); | |
2391 | return (0); | |
2392 | } | |
2393 | ||
2394 | static int | |
2395 | zfs_do_rollback(int argc, char **argv) | |
2396 | { | |
2397 | int ret; | |
2398 | int c; | |
2399 | boolean_t force = B_FALSE; | |
2400 | rollback_cbdata_t cb = { 0 }; | |
2401 | zfs_handle_t *zhp, *snap; | |
2402 | char parentname[ZFS_MAXNAMELEN]; | |
2403 | char *delim; | |
2404 | ||
2405 | /* check options */ | |
2406 | while ((c = getopt(argc, argv, "rRf")) != -1) { | |
2407 | switch (c) { | |
2408 | case 'r': | |
2409 | cb.cb_recurse = 1; | |
2410 | break; | |
2411 | case 'R': | |
2412 | cb.cb_recurse = 1; | |
2413 | cb.cb_doclones = 1; | |
2414 | break; | |
2415 | case 'f': | |
2416 | force = B_TRUE; | |
2417 | break; | |
2418 | case '?': | |
2419 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2420 | optopt); | |
2421 | usage(B_FALSE); | |
2422 | } | |
2423 | } | |
2424 | ||
2425 | argc -= optind; | |
2426 | argv += optind; | |
2427 | ||
2428 | /* check number of arguments */ | |
2429 | if (argc < 1) { | |
2430 | (void) fprintf(stderr, gettext("missing dataset argument\n")); | |
2431 | usage(B_FALSE); | |
2432 | } | |
2433 | if (argc > 1) { | |
2434 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2435 | usage(B_FALSE); | |
2436 | } | |
2437 | ||
2438 | /* open the snapshot */ | |
2439 | if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) | |
2440 | return (1); | |
2441 | ||
2442 | /* open the parent dataset */ | |
2443 | (void) strlcpy(parentname, argv[0], sizeof (parentname)); | |
2444 | verify((delim = strrchr(parentname, '@')) != NULL); | |
2445 | *delim = '\0'; | |
2446 | if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { | |
2447 | zfs_close(snap); | |
2448 | return (1); | |
2449 | } | |
2450 | ||
2451 | /* | |
2452 | * Check for more recent snapshots and/or clones based on the presence | |
2453 | * of '-r' and '-R'. | |
2454 | */ | |
2455 | cb.cb_target = argv[0]; | |
2456 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
2457 | cb.cb_first = B_TRUE; | |
2458 | cb.cb_error = 0; | |
2459 | if ((ret = zfs_iter_children(zhp, rollback_check, &cb)) != 0) | |
2460 | goto out; | |
2461 | ||
2462 | if ((ret = cb.cb_error) != 0) | |
2463 | goto out; | |
2464 | ||
2465 | /* | |
2466 | * Rollback parent to the given snapshot. | |
2467 | */ | |
2468 | ret = zfs_rollback(zhp, snap, force); | |
2469 | ||
2470 | out: | |
2471 | zfs_close(snap); | |
2472 | zfs_close(zhp); | |
2473 | ||
2474 | if (ret == 0) | |
2475 | return (0); | |
2476 | else | |
2477 | return (1); | |
2478 | } | |
2479 | ||
2480 | /* | |
2481 | * zfs set property=value { fs | snap | vol } ... | |
2482 | * | |
2483 | * Sets the given property for all datasets specified on the command line. | |
2484 | */ | |
2485 | typedef struct set_cbdata { | |
2486 | char *cb_propname; | |
2487 | char *cb_value; | |
2488 | } set_cbdata_t; | |
2489 | ||
2490 | static int | |
2491 | set_callback(zfs_handle_t *zhp, void *data) | |
2492 | { | |
2493 | set_cbdata_t *cbp = data; | |
2494 | ||
2495 | if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { | |
2496 | switch (libzfs_errno(g_zfs)) { | |
2497 | case EZFS_MOUNTFAILED: | |
2498 | (void) fprintf(stderr, gettext("property may be set " | |
2499 | "but unable to remount filesystem\n")); | |
2500 | break; | |
2501 | case EZFS_SHARENFSFAILED: | |
2502 | (void) fprintf(stderr, gettext("property may be set " | |
2503 | "but unable to reshare filesystem\n")); | |
2504 | break; | |
2505 | } | |
2506 | return (1); | |
2507 | } | |
2508 | return (0); | |
2509 | } | |
2510 | ||
2511 | static int | |
2512 | zfs_do_set(int argc, char **argv) | |
2513 | { | |
2514 | set_cbdata_t cb; | |
2515 | int ret; | |
2516 | ||
2517 | /* check for options */ | |
2518 | if (argc > 1 && argv[1][0] == '-') { | |
2519 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2520 | argv[1][1]); | |
2521 | usage(B_FALSE); | |
2522 | } | |
2523 | ||
2524 | /* check number of arguments */ | |
2525 | if (argc < 2) { | |
2526 | (void) fprintf(stderr, gettext("missing property=value " | |
2527 | "argument\n")); | |
2528 | usage(B_FALSE); | |
2529 | } | |
2530 | if (argc < 3) { | |
2531 | (void) fprintf(stderr, gettext("missing dataset name\n")); | |
2532 | usage(B_FALSE); | |
2533 | } | |
2534 | ||
2535 | /* validate property=value argument */ | |
2536 | cb.cb_propname = argv[1]; | |
2537 | if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || | |
2538 | (cb.cb_value[1] == '\0')) { | |
2539 | (void) fprintf(stderr, gettext("missing value in " | |
2540 | "property=value argument\n")); | |
2541 | usage(B_FALSE); | |
2542 | } | |
2543 | ||
2544 | *cb.cb_value = '\0'; | |
2545 | cb.cb_value++; | |
2546 | ||
2547 | if (*cb.cb_propname == '\0') { | |
2548 | (void) fprintf(stderr, | |
2549 | gettext("missing property in property=value argument\n")); | |
2550 | usage(B_FALSE); | |
2551 | } | |
2552 | ||
2553 | ret = zfs_for_each(argc - 2, argv + 2, 0, | |
2554 | ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); | |
2555 | ||
2556 | return (ret); | |
2557 | } | |
2558 | ||
2559 | /* | |
2560 | * zfs snapshot [-r] [-o prop=value] ... <fs@snap> | |
2561 | * | |
2562 | * Creates a snapshot with the given name. While functionally equivalent to | |
2563 | * 'zfs create', it is a separate command to differentiate intent. | |
2564 | */ | |
2565 | static int | |
2566 | zfs_do_snapshot(int argc, char **argv) | |
2567 | { | |
2568 | boolean_t recursive = B_FALSE; | |
2569 | int ret; | |
2570 | signed char c; | |
2571 | nvlist_t *props; | |
2572 | ||
2573 | if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) | |
2574 | nomem(); | |
2575 | ||
2576 | /* check options */ | |
2577 | while ((c = getopt(argc, argv, "ro:")) != -1) { | |
2578 | switch (c) { | |
2579 | case 'o': | |
2580 | if (parseprop(props)) | |
2581 | return (1); | |
2582 | break; | |
2583 | case 'r': | |
2584 | recursive = B_TRUE; | |
2585 | break; | |
2586 | case '?': | |
2587 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2588 | optopt); | |
2589 | goto usage; | |
2590 | } | |
2591 | } | |
2592 | ||
2593 | argc -= optind; | |
2594 | argv += optind; | |
2595 | ||
2596 | /* check number of arguments */ | |
2597 | if (argc < 1) { | |
2598 | (void) fprintf(stderr, gettext("missing snapshot argument\n")); | |
2599 | goto usage; | |
2600 | } | |
2601 | if (argc > 1) { | |
2602 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2603 | goto usage; | |
2604 | } | |
2605 | ||
2606 | ret = zfs_snapshot(g_zfs, argv[0], recursive, props); | |
2607 | nvlist_free(props); | |
2608 | if (ret && recursive) | |
2609 | (void) fprintf(stderr, gettext("no snapshots were created\n")); | |
2610 | return (ret != 0); | |
2611 | ||
2612 | usage: | |
2613 | nvlist_free(props); | |
2614 | usage(B_FALSE); | |
2615 | return (-1); | |
2616 | } | |
2617 | ||
2618 | /* | |
2619 | * zfs send [-vDp] -R [-i|-I <@snap>] <fs@snap> | |
2620 | * zfs send [-vDp] [-i|-I <@snap>] <fs@snap> | |
2621 | * | |
2622 | * Send a backup stream to stdout. | |
2623 | */ | |
2624 | static int | |
2625 | zfs_do_send(int argc, char **argv) | |
2626 | { | |
2627 | char *fromname = NULL; | |
2628 | char *toname = NULL; | |
2629 | char *cp; | |
2630 | zfs_handle_t *zhp; | |
2631 | sendflags_t flags = { 0 }; | |
2632 | int c, err; | |
2633 | nvlist_t *dbgnv; | |
2634 | boolean_t extraverbose = B_FALSE; | |
2635 | ||
2636 | /* check options */ | |
2637 | while ((c = getopt(argc, argv, ":i:I:RDpv")) != -1) { | |
2638 | switch (c) { | |
2639 | case 'i': | |
2640 | if (fromname) | |
2641 | usage(B_FALSE); | |
2642 | fromname = optarg; | |
2643 | break; | |
2644 | case 'I': | |
2645 | if (fromname) | |
2646 | usage(B_FALSE); | |
2647 | fromname = optarg; | |
2648 | flags.doall = B_TRUE; | |
2649 | break; | |
2650 | case 'R': | |
2651 | flags.replicate = B_TRUE; | |
2652 | break; | |
2653 | case 'p': | |
2654 | flags.props = B_TRUE; | |
2655 | break; | |
2656 | case 'v': | |
2657 | if (flags.verbose) | |
2658 | extraverbose = B_TRUE; | |
2659 | flags.verbose = B_TRUE; | |
2660 | break; | |
2661 | case 'D': | |
2662 | flags.dedup = B_TRUE; | |
2663 | break; | |
2664 | case ':': | |
2665 | (void) fprintf(stderr, gettext("missing argument for " | |
2666 | "'%c' option\n"), optopt); | |
2667 | usage(B_FALSE); | |
2668 | break; | |
2669 | case '?': | |
2670 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2671 | optopt); | |
2672 | usage(B_FALSE); | |
2673 | } | |
2674 | } | |
2675 | ||
2676 | argc -= optind; | |
2677 | argv += optind; | |
2678 | ||
2679 | /* check number of arguments */ | |
2680 | if (argc < 1) { | |
2681 | (void) fprintf(stderr, gettext("missing snapshot argument\n")); | |
2682 | usage(B_FALSE); | |
2683 | } | |
2684 | if (argc > 1) { | |
2685 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2686 | usage(B_FALSE); | |
2687 | } | |
2688 | ||
2689 | if (isatty(STDOUT_FILENO)) { | |
2690 | (void) fprintf(stderr, | |
2691 | gettext("Error: Stream can not be written to a terminal.\n" | |
2692 | "You must redirect standard output.\n")); | |
2693 | return (1); | |
2694 | } | |
2695 | ||
2696 | cp = strchr(argv[0], '@'); | |
2697 | if (cp == NULL) { | |
2698 | (void) fprintf(stderr, | |
2699 | gettext("argument must be a snapshot\n")); | |
2700 | usage(B_FALSE); | |
2701 | } | |
2702 | *cp = '\0'; | |
2703 | toname = cp + 1; | |
2704 | zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
2705 | if (zhp == NULL) | |
2706 | return (1); | |
2707 | ||
2708 | /* | |
2709 | * If they specified the full path to the snapshot, chop off | |
2710 | * everything except the short name of the snapshot, but special | |
2711 | * case if they specify the origin. | |
2712 | */ | |
2713 | if (fromname && (cp = strchr(fromname, '@')) != NULL) { | |
2714 | char origin[ZFS_MAXNAMELEN]; | |
2715 | zprop_source_t src; | |
2716 | ||
2717 | (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, | |
2718 | origin, sizeof (origin), &src, NULL, 0, B_FALSE); | |
2719 | ||
2720 | if (strcmp(origin, fromname) == 0) { | |
2721 | fromname = NULL; | |
2722 | flags.fromorigin = B_TRUE; | |
2723 | } else { | |
2724 | *cp = '\0'; | |
2725 | if (cp != fromname && strcmp(argv[0], fromname)) { | |
2726 | (void) fprintf(stderr, | |
2727 | gettext("incremental source must be " | |
2728 | "in same filesystem\n")); | |
2729 | usage(B_FALSE); | |
2730 | } | |
2731 | fromname = cp + 1; | |
2732 | if (strchr(fromname, '@') || strchr(fromname, '/')) { | |
2733 | (void) fprintf(stderr, | |
2734 | gettext("invalid incremental source\n")); | |
2735 | usage(B_FALSE); | |
2736 | } | |
2737 | } | |
2738 | } | |
2739 | ||
2740 | if (flags.replicate && fromname == NULL) | |
2741 | flags.doall = B_TRUE; | |
2742 | ||
2743 | err = zfs_send(zhp, fromname, toname, flags, STDOUT_FILENO, NULL, 0, | |
2744 | extraverbose ? &dbgnv : NULL); | |
2745 | ||
2746 | if (extraverbose) { | |
2747 | /* | |
2748 | * dump_nvlist prints to stdout, but that's been | |
2749 | * redirected to a file. Make it print to stderr | |
2750 | * instead. | |
2751 | */ | |
2752 | (void) dup2(STDERR_FILENO, STDOUT_FILENO); | |
2753 | dump_nvlist(dbgnv, 0); | |
2754 | nvlist_free(dbgnv); | |
2755 | } | |
2756 | zfs_close(zhp); | |
2757 | ||
2758 | return (err != 0); | |
2759 | } | |
2760 | ||
2761 | /* | |
2762 | * zfs receive [-vnFu] [-d | -e] <fs@snap> | |
2763 | * | |
2764 | * Restore a backup stream from stdin. | |
2765 | */ | |
2766 | static int | |
2767 | zfs_do_receive(int argc, char **argv) | |
2768 | { | |
2769 | int c, err; | |
2770 | recvflags_t flags = { 0 }; | |
2771 | ||
2772 | /* check options */ | |
2773 | while ((c = getopt(argc, argv, ":denuvF")) != -1) { | |
2774 | switch (c) { | |
2775 | case 'd': | |
2776 | flags.isprefix = B_TRUE; | |
2777 | break; | |
2778 | case 'e': | |
2779 | flags.isprefix = B_TRUE; | |
2780 | flags.istail = B_TRUE; | |
2781 | break; | |
2782 | case 'n': | |
2783 | flags.dryrun = B_TRUE; | |
2784 | break; | |
2785 | case 'u': | |
2786 | flags.nomount = B_TRUE; | |
2787 | break; | |
2788 | case 'v': | |
2789 | flags.verbose = B_TRUE; | |
2790 | break; | |
2791 | case 'F': | |
2792 | flags.force = B_TRUE; | |
2793 | break; | |
2794 | case ':': | |
2795 | (void) fprintf(stderr, gettext("missing argument for " | |
2796 | "'%c' option\n"), optopt); | |
2797 | usage(B_FALSE); | |
2798 | break; | |
2799 | case '?': | |
2800 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2801 | optopt); | |
2802 | usage(B_FALSE); | |
2803 | } | |
2804 | } | |
2805 | ||
2806 | argc -= optind; | |
2807 | argv += optind; | |
2808 | ||
2809 | /* check number of arguments */ | |
2810 | if (argc < 1) { | |
2811 | (void) fprintf(stderr, gettext("missing snapshot argument\n")); | |
2812 | usage(B_FALSE); | |
2813 | } | |
2814 | if (argc > 1) { | |
2815 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
2816 | usage(B_FALSE); | |
2817 | } | |
2818 | ||
2819 | if (isatty(STDIN_FILENO)) { | |
2820 | (void) fprintf(stderr, | |
2821 | gettext("Error: Backup stream can not be read " | |
2822 | "from a terminal.\n" | |
2823 | "You must redirect standard input.\n")); | |
2824 | return (1); | |
2825 | } | |
2826 | ||
2827 | err = zfs_receive(g_zfs, argv[0], flags, STDIN_FILENO, NULL); | |
2828 | ||
2829 | return (err != 0); | |
2830 | } | |
2831 | ||
2832 | static int | |
2833 | zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) | |
2834 | { | |
2835 | int errors = 0; | |
2836 | int i; | |
2837 | const char *tag; | |
2838 | boolean_t recursive = B_FALSE; | |
2839 | boolean_t temphold = B_FALSE; | |
2840 | const char *opts = holding ? "rt" : "r"; | |
2841 | int c; | |
2842 | ||
2843 | /* check options */ | |
2844 | while ((c = getopt(argc, argv, opts)) != -1) { | |
2845 | switch (c) { | |
2846 | case 'r': | |
2847 | recursive = B_TRUE; | |
2848 | break; | |
2849 | case 't': | |
2850 | temphold = B_TRUE; | |
2851 | break; | |
2852 | case '?': | |
2853 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
2854 | optopt); | |
2855 | usage(B_FALSE); | |
2856 | } | |
2857 | } | |
2858 | ||
2859 | argc -= optind; | |
2860 | argv += optind; | |
2861 | ||
2862 | /* check number of arguments */ | |
2863 | if (argc < 2) | |
2864 | usage(B_FALSE); | |
2865 | ||
2866 | tag = argv[0]; | |
2867 | --argc; | |
2868 | ++argv; | |
2869 | ||
2870 | if (holding && tag[0] == '.') { | |
2871 | /* tags starting with '.' are reserved for libzfs */ | |
2872 | (void) fprintf(stderr, gettext("tag may not start with '.'\n")); | |
2873 | usage(B_FALSE); | |
2874 | } | |
2875 | ||
2876 | for (i = 0; i < argc; ++i) { | |
2877 | zfs_handle_t *zhp; | |
2878 | char parent[ZFS_MAXNAMELEN]; | |
2879 | const char *delim; | |
2880 | char *path = argv[i]; | |
2881 | ||
2882 | delim = strchr(path, '@'); | |
2883 | if (delim == NULL) { | |
2884 | (void) fprintf(stderr, | |
2885 | gettext("'%s' is not a snapshot\n"), path); | |
2886 | ++errors; | |
2887 | continue; | |
2888 | } | |
2889 | (void) strncpy(parent, path, delim - path); | |
2890 | parent[delim - path] = '\0'; | |
2891 | ||
2892 | zhp = zfs_open(g_zfs, parent, | |
2893 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
2894 | if (zhp == NULL) { | |
2895 | ++errors; | |
2896 | continue; | |
2897 | } | |
2898 | if (holding) { | |
2899 | if (zfs_hold(zhp, delim+1, tag, recursive, | |
2900 | temphold, B_FALSE, -1, 0, 0) != 0) | |
2901 | ++errors; | |
2902 | } else { | |
2903 | if (zfs_release(zhp, delim+1, tag, recursive) != 0) | |
2904 | ++errors; | |
2905 | } | |
2906 | zfs_close(zhp); | |
2907 | } | |
2908 | ||
2909 | return (errors != 0); | |
2910 | } | |
2911 | ||
2912 | /* | |
2913 | * zfs hold [-r] [-t] <tag> <snap> ... | |
2914 | * | |
2915 | * -r Recursively hold | |
2916 | * -t Temporary hold (hidden option) | |
2917 | * | |
2918 | * Apply a user-hold with the given tag to the list of snapshots. | |
2919 | */ | |
2920 | static int | |
2921 | zfs_do_hold(int argc, char **argv) | |
2922 | { | |
2923 | return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); | |
2924 | } | |
2925 | ||
2926 | /* | |
2927 | * zfs release [-r] <tag> <snap> ... | |
2928 | * | |
2929 | * -r Recursively release | |
2930 | * | |
2931 | * Release a user-hold with the given tag from the list of snapshots. | |
2932 | */ | |
2933 | static int | |
2934 | zfs_do_release(int argc, char **argv) | |
2935 | { | |
2936 | return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); | |
2937 | } | |
2938 | ||
2939 | #define CHECK_SPINNER 30 | |
2940 | #define SPINNER_TIME 3 /* seconds */ | |
2941 | #define MOUNT_TIME 5 /* seconds */ | |
2942 | ||
2943 | static int | |
2944 | get_one_dataset(zfs_handle_t *zhp, void *data) | |
2945 | { | |
2946 | static char *spin[] = { "-", "\\", "|", "/" }; | |
2947 | static int spinval = 0; | |
2948 | static int spincheck = 0; | |
2949 | static time_t last_spin_time = (time_t)0; | |
2950 | get_all_cb_t *cbp = data; | |
2951 | zfs_type_t type = zfs_get_type(zhp); | |
2952 | ||
2953 | if (cbp->cb_verbose) { | |
2954 | if (--spincheck < 0) { | |
2955 | time_t now = time(NULL); | |
2956 | if (last_spin_time + SPINNER_TIME < now) { | |
2957 | update_progress(spin[spinval++ % 4]); | |
2958 | last_spin_time = now; | |
2959 | } | |
2960 | spincheck = CHECK_SPINNER; | |
2961 | } | |
2962 | } | |
2963 | ||
2964 | /* | |
2965 | * Interate over any nested datasets. | |
2966 | */ | |
2967 | if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { | |
2968 | zfs_close(zhp); | |
2969 | return (1); | |
2970 | } | |
2971 | ||
2972 | /* | |
2973 | * Skip any datasets whose type does not match. | |
2974 | */ | |
2975 | if ((type & ZFS_TYPE_FILESYSTEM) == 0) { | |
2976 | zfs_close(zhp); | |
2977 | return (0); | |
2978 | } | |
2979 | libzfs_add_handle(cbp, zhp); | |
2980 | assert(cbp->cb_used <= cbp->cb_alloc); | |
2981 | ||
2982 | return (0); | |
2983 | } | |
2984 | ||
2985 | static void | |
2986 | get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) | |
2987 | { | |
2988 | get_all_cb_t cb = { 0 }; | |
2989 | cb.cb_verbose = verbose; | |
2990 | cb.cb_getone = get_one_dataset; | |
2991 | ||
2992 | if (verbose) | |
2993 | set_progress_header(gettext("Reading ZFS config")); | |
2994 | (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); | |
2995 | ||
2996 | *dslist = cb.cb_handles; | |
2997 | *count = cb.cb_used; | |
2998 | ||
2999 | if (verbose) | |
3000 | finish_progress(gettext("done.")); | |
3001 | } | |
3002 | ||
3003 | /* | |
3004 | * Generic callback for sharing or mounting filesystems. Because the code is so | |
3005 | * similar, we have a common function with an extra parameter to determine which | |
3006 | * mode we are using. | |
3007 | */ | |
3008 | #define OP_SHARE 0x1 | |
3009 | #define OP_MOUNT 0x2 | |
3010 | ||
3011 | /* | |
3012 | * Share or mount a dataset. | |
3013 | */ | |
3014 | static int | |
3015 | share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, | |
3016 | boolean_t explicit, const char *options) | |
3017 | { | |
3018 | char mountpoint[ZFS_MAXPROPLEN]; | |
3019 | char shareopts[ZFS_MAXPROPLEN]; | |
3020 | char smbshareopts[ZFS_MAXPROPLEN]; | |
3021 | const char *cmdname = op == OP_SHARE ? "share" : "mount"; | |
3022 | struct mnttab mnt; | |
3023 | uint64_t zoned, canmount; | |
3024 | boolean_t shared_nfs, shared_smb; | |
3025 | ||
3026 | assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); | |
3027 | ||
3028 | /* | |
3029 | * Check to make sure we can mount/share this dataset. If we | |
3030 | * are in the global zone and the filesystem is exported to a | |
3031 | * local zone, or if we are in a local zone and the | |
3032 | * filesystem is not exported, then it is an error. | |
3033 | */ | |
3034 | zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); | |
3035 | ||
3036 | if (zoned && getzoneid() == GLOBAL_ZONEID) { | |
3037 | if (!explicit) | |
3038 | return (0); | |
3039 | ||
3040 | (void) fprintf(stderr, gettext("cannot %s '%s': " | |
3041 | "dataset is exported to a local zone\n"), cmdname, | |
3042 | zfs_get_name(zhp)); | |
3043 | return (1); | |
3044 | ||
3045 | } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { | |
3046 | if (!explicit) | |
3047 | return (0); | |
3048 | ||
3049 | (void) fprintf(stderr, gettext("cannot %s '%s': " | |
3050 | "permission denied\n"), cmdname, | |
3051 | zfs_get_name(zhp)); | |
3052 | return (1); | |
3053 | } | |
3054 | ||
3055 | /* | |
3056 | * Ignore any filesystems which don't apply to us. This | |
3057 | * includes those with a legacy mountpoint, or those with | |
3058 | * legacy share options. | |
3059 | */ | |
3060 | verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, | |
3061 | sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); | |
3062 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, | |
3063 | sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); | |
3064 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, | |
3065 | sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); | |
3066 | ||
3067 | if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && | |
3068 | strcmp(smbshareopts, "off") == 0) { | |
3069 | if (!explicit) | |
3070 | return (0); | |
3071 | ||
3072 | (void) fprintf(stderr, gettext("cannot share '%s': " | |
3073 | "legacy share\n"), zfs_get_name(zhp)); | |
3074 | (void) fprintf(stderr, gettext("use share(1M) to " | |
3075 | "share this filesystem, or set " | |
3076 | "sharenfs property on\n")); | |
3077 | return (1); | |
3078 | } | |
3079 | ||
3080 | /* | |
3081 | * We cannot share or mount legacy filesystems. If the | |
3082 | * shareopts is non-legacy but the mountpoint is legacy, we | |
3083 | * treat it as a legacy share. | |
3084 | */ | |
3085 | if (strcmp(mountpoint, "legacy") == 0) { | |
3086 | if (!explicit) | |
3087 | return (0); | |
3088 | ||
3089 | (void) fprintf(stderr, gettext("cannot %s '%s': " | |
3090 | "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); | |
3091 | (void) fprintf(stderr, gettext("use %s(1M) to " | |
3092 | "%s this filesystem\n"), cmdname, cmdname); | |
3093 | return (1); | |
3094 | } | |
3095 | ||
3096 | if (strcmp(mountpoint, "none") == 0) { | |
3097 | if (!explicit) | |
3098 | return (0); | |
3099 | ||
3100 | (void) fprintf(stderr, gettext("cannot %s '%s': no " | |
3101 | "mountpoint set\n"), cmdname, zfs_get_name(zhp)); | |
3102 | return (1); | |
3103 | } | |
3104 | ||
3105 | /* | |
3106 | * canmount explicit outcome | |
3107 | * on no pass through | |
3108 | * on yes pass through | |
3109 | * off no return 0 | |
3110 | * off yes display error, return 1 | |
3111 | * noauto no return 0 | |
3112 | * noauto yes pass through | |
3113 | */ | |
3114 | canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); | |
3115 | if (canmount == ZFS_CANMOUNT_OFF) { | |
3116 | if (!explicit) | |
3117 | return (0); | |
3118 | ||
3119 | (void) fprintf(stderr, gettext("cannot %s '%s': " | |
3120 | "'canmount' property is set to 'off'\n"), cmdname, | |
3121 | zfs_get_name(zhp)); | |
3122 | return (1); | |
3123 | } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { | |
3124 | return (0); | |
3125 | } | |
3126 | ||
3127 | /* | |
3128 | * At this point, we have verified that the mountpoint and/or | |
3129 | * shareopts are appropriate for auto management. If the | |
3130 | * filesystem is already mounted or shared, return (failing | |
3131 | * for explicit requests); otherwise mount or share the | |
3132 | * filesystem. | |
3133 | */ | |
3134 | switch (op) { | |
3135 | case OP_SHARE: | |
3136 | ||
3137 | shared_nfs = zfs_is_shared_nfs(zhp, NULL); | |
3138 | shared_smb = zfs_is_shared_smb(zhp, NULL); | |
3139 | ||
3140 | if (shared_nfs && shared_smb || | |
3141 | (shared_nfs && strcmp(shareopts, "on") == 0 && | |
3142 | strcmp(smbshareopts, "off") == 0) || | |
3143 | (shared_smb && strcmp(smbshareopts, "on") == 0 && | |
3144 | strcmp(shareopts, "off") == 0)) { | |
3145 | if (!explicit) | |
3146 | return (0); | |
3147 | ||
3148 | (void) fprintf(stderr, gettext("cannot share " | |
3149 | "'%s': filesystem already shared\n"), | |
3150 | zfs_get_name(zhp)); | |
3151 | return (1); | |
3152 | } | |
3153 | ||
3154 | if (!zfs_is_mounted(zhp, NULL) && | |
3155 | zfs_mount(zhp, NULL, 0) != 0) | |
3156 | return (1); | |
3157 | ||
3158 | if (protocol == NULL) { | |
3159 | if (zfs_shareall(zhp) != 0) | |
3160 | return (1); | |
3161 | } else if (strcmp(protocol, "nfs") == 0) { | |
3162 | if (zfs_share_nfs(zhp)) | |
3163 | return (1); | |
3164 | } else if (strcmp(protocol, "smb") == 0) { | |
3165 | if (zfs_share_smb(zhp)) | |
3166 | return (1); | |
3167 | } else { | |
3168 | (void) fprintf(stderr, gettext("cannot share " | |
3169 | "'%s': invalid share type '%s' " | |
3170 | "specified\n"), | |
3171 | zfs_get_name(zhp), protocol); | |
3172 | return (1); | |
3173 | } | |
3174 | ||
3175 | break; | |
3176 | ||
3177 | case OP_MOUNT: | |
3178 | if (options == NULL) | |
3179 | mnt.mnt_mntopts = ""; | |
3180 | else | |
3181 | mnt.mnt_mntopts = (char *)options; | |
3182 | ||
3183 | if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && | |
3184 | zfs_is_mounted(zhp, NULL)) { | |
3185 | if (!explicit) | |
3186 | return (0); | |
3187 | ||
3188 | (void) fprintf(stderr, gettext("cannot mount " | |
3189 | "'%s': filesystem already mounted\n"), | |
3190 | zfs_get_name(zhp)); | |
3191 | return (1); | |
3192 | } | |
3193 | ||
3194 | if (zfs_mount(zhp, options, flags) != 0) | |
3195 | return (1); | |
3196 | break; | |
3197 | } | |
3198 | ||
3199 | return (0); | |
3200 | } | |
3201 | ||
3202 | /* | |
3203 | * Reports progress in the form "(current/total)". Not thread-safe. | |
3204 | */ | |
3205 | static void | |
3206 | report_mount_progress(int current, int total) | |
3207 | { | |
3208 | static time_t last_progress_time = 0; | |
3209 | time_t now = time(NULL); | |
3210 | char info[32]; | |
3211 | ||
3212 | /* report 1..n instead of 0..n-1 */ | |
3213 | ++current; | |
3214 | ||
3215 | /* display header if we're here for the first time */ | |
3216 | if (current == 1) { | |
3217 | set_progress_header(gettext("Mounting ZFS filesystems")); | |
3218 | } else if (current != total && last_progress_time + MOUNT_TIME >= now) { | |
3219 | /* too soon to report again */ | |
3220 | return; | |
3221 | } | |
3222 | ||
3223 | last_progress_time = now; | |
3224 | ||
3225 | (void) sprintf(info, "(%d/%d)", current, total); | |
3226 | ||
3227 | if (current == total) | |
3228 | finish_progress(info); | |
3229 | else | |
3230 | update_progress(info); | |
3231 | } | |
3232 | ||
3233 | static void | |
3234 | append_options(char *mntopts, char *newopts) | |
3235 | { | |
3236 | int len = strlen(mntopts); | |
3237 | ||
3238 | /* original length plus new string to append plus 1 for the comma */ | |
3239 | if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { | |
3240 | (void) fprintf(stderr, gettext("the opts argument for " | |
3241 | "'%s' option is too long (more than %d chars)\n"), | |
3242 | "-o", MNT_LINE_MAX); | |
3243 | usage(B_FALSE); | |
3244 | } | |
3245 | ||
3246 | if (*mntopts) | |
3247 | mntopts[len++] = ','; | |
3248 | ||
3249 | (void) strcpy(&mntopts[len], newopts); | |
3250 | } | |
3251 | ||
3252 | static int | |
3253 | share_mount(int op, int argc, char **argv) | |
3254 | { | |
3255 | int do_all = 0; | |
3256 | boolean_t verbose = B_FALSE; | |
3257 | int c, ret = 0; | |
3258 | char *options = NULL; | |
3259 | int flags = 0; | |
3260 | ||
3261 | /* check options */ | |
3262 | while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) | |
3263 | != -1) { | |
3264 | switch (c) { | |
3265 | case 'a': | |
3266 | do_all = 1; | |
3267 | break; | |
3268 | case 'v': | |
3269 | verbose = B_TRUE; | |
3270 | break; | |
3271 | case 'o': | |
3272 | if (*optarg == '\0') { | |
3273 | (void) fprintf(stderr, gettext("empty mount " | |
3274 | "options (-o) specified\n")); | |
3275 | usage(B_FALSE); | |
3276 | } | |
3277 | ||
3278 | if (options == NULL) | |
3279 | options = safe_malloc(MNT_LINE_MAX + 1); | |
3280 | ||
3281 | /* option validation is done later */ | |
3282 | append_options(options, optarg); | |
3283 | break; | |
3284 | ||
3285 | case 'O': | |
3286 | flags |= MS_OVERLAY; | |
3287 | break; | |
3288 | case ':': | |
3289 | (void) fprintf(stderr, gettext("missing argument for " | |
3290 | "'%c' option\n"), optopt); | |
3291 | usage(B_FALSE); | |
3292 | break; | |
3293 | case '?': | |
3294 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
3295 | optopt); | |
3296 | usage(B_FALSE); | |
3297 | } | |
3298 | } | |
3299 | ||
3300 | argc -= optind; | |
3301 | argv += optind; | |
3302 | ||
3303 | /* check number of arguments */ | |
3304 | if (do_all) { | |
3305 | zfs_handle_t **dslist = NULL; | |
3306 | size_t i, count = 0; | |
3307 | char *protocol = NULL; | |
3308 | ||
3309 | if (op == OP_SHARE && argc > 0) { | |
3310 | if (strcmp(argv[0], "nfs") != 0 && | |
3311 | strcmp(argv[0], "smb") != 0) { | |
3312 | (void) fprintf(stderr, gettext("share type " | |
3313 | "must be 'nfs' or 'smb'\n")); | |
3314 | usage(B_FALSE); | |
3315 | } | |
3316 | protocol = argv[0]; | |
3317 | argc--; | |
3318 | argv++; | |
3319 | } | |
3320 | ||
3321 | if (argc != 0) { | |
3322 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
3323 | usage(B_FALSE); | |
3324 | } | |
3325 | ||
3326 | start_progress_timer(); | |
3327 | get_all_datasets(&dslist, &count, verbose); | |
3328 | ||
3329 | if (count == 0) | |
3330 | return (0); | |
3331 | ||
3332 | qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); | |
3333 | ||
3334 | for (i = 0; i < count; i++) { | |
3335 | if (verbose) | |
3336 | report_mount_progress(i, count); | |
3337 | ||
3338 | if (share_mount_one(dslist[i], op, flags, protocol, | |
3339 | B_FALSE, options) != 0) | |
3340 | ret = 1; | |
3341 | zfs_close(dslist[i]); | |
3342 | } | |
3343 | ||
3344 | free(dslist); | |
3345 | } else if (argc == 0) { | |
3346 | struct mnttab entry; | |
3347 | ||
3348 | if ((op == OP_SHARE) || (options != NULL)) { | |
3349 | (void) fprintf(stderr, gettext("missing filesystem " | |
3350 | "argument (specify -a for all)\n")); | |
3351 | usage(B_FALSE); | |
3352 | } | |
3353 | ||
3354 | /* | |
3355 | * When mount is given no arguments, go through /etc/mnttab and | |
3356 | * display any active ZFS mounts. We hide any snapshots, since | |
3357 | * they are controlled automatically. | |
3358 | */ | |
3359 | rewind(mnttab_file); | |
3360 | while (getmntent(mnttab_file, &entry) == 0) { | |
3361 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || | |
3362 | strchr(entry.mnt_special, '@') != NULL) | |
3363 | continue; | |
3364 | ||
3365 | (void) printf("%-30s %s\n", entry.mnt_special, | |
3366 | entry.mnt_mountp); | |
3367 | } | |
3368 | ||
3369 | } else { | |
3370 | zfs_handle_t *zhp; | |
3371 | ||
3372 | if (argc > 1) { | |
3373 | (void) fprintf(stderr, | |
3374 | gettext("too many arguments\n")); | |
3375 | usage(B_FALSE); | |
3376 | } | |
3377 | ||
3378 | if ((zhp = zfs_open(g_zfs, argv[0], | |
3379 | ZFS_TYPE_FILESYSTEM)) == NULL) { | |
3380 | ret = 1; | |
3381 | } else { | |
3382 | ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, | |
3383 | options); | |
3384 | zfs_close(zhp); | |
3385 | } | |
3386 | } | |
3387 | ||
3388 | return (ret); | |
3389 | } | |
3390 | ||
3391 | /* | |
3392 | * zfs mount -a [nfs] | |
3393 | * zfs mount filesystem | |
3394 | * | |
3395 | * Mount all filesystems, or mount the given filesystem. | |
3396 | */ | |
3397 | static int | |
3398 | zfs_do_mount(int argc, char **argv) | |
3399 | { | |
3400 | return (share_mount(OP_MOUNT, argc, argv)); | |
3401 | } | |
3402 | ||
3403 | /* | |
3404 | * zfs share -a [nfs | smb] | |
3405 | * zfs share filesystem | |
3406 | * | |
3407 | * Share all filesystems, or share the given filesystem. | |
3408 | */ | |
3409 | static int | |
3410 | zfs_do_share(int argc, char **argv) | |
3411 | { | |
3412 | return (share_mount(OP_SHARE, argc, argv)); | |
3413 | } | |
3414 | ||
3415 | typedef struct unshare_unmount_node { | |
3416 | zfs_handle_t *un_zhp; | |
3417 | char *un_mountp; | |
3418 | uu_avl_node_t un_avlnode; | |
3419 | } unshare_unmount_node_t; | |
3420 | ||
3421 | /* ARGSUSED */ | |
3422 | static int | |
3423 | unshare_unmount_compare(const void *larg, const void *rarg, void *unused) | |
3424 | { | |
3425 | const unshare_unmount_node_t *l = larg; | |
3426 | const unshare_unmount_node_t *r = rarg; | |
3427 | ||
3428 | return (strcmp(l->un_mountp, r->un_mountp)); | |
3429 | } | |
3430 | ||
3431 | /* | |
3432 | * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an | |
3433 | * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, | |
3434 | * and unmount it appropriately. | |
3435 | */ | |
3436 | static int | |
3437 | unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) | |
3438 | { | |
3439 | zfs_handle_t *zhp; | |
3440 | int ret; | |
3441 | struct stat64 statbuf; | |
3442 | struct extmnttab entry; | |
3443 | const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; | |
3444 | ino_t path_inode; | |
3445 | ||
3446 | /* | |
3447 | * Search for the path in /etc/mnttab. Rather than looking for the | |
3448 | * specific path, which can be fooled by non-standard paths (i.e. ".." | |
3449 | * or "//"), we stat() the path and search for the corresponding | |
3450 | * (major,minor) device pair. | |
3451 | */ | |
3452 | if (stat64(path, &statbuf) != 0) { | |
3453 | (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), | |
3454 | cmdname, path, strerror(errno)); | |
3455 | return (1); | |
3456 | } | |
3457 | path_inode = statbuf.st_ino; | |
3458 | ||
3459 | /* | |
3460 | * Search for the given (major,minor) pair in the mount table. | |
3461 | */ | |
3462 | rewind(mnttab_file); | |
3463 | while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { | |
3464 | if (entry.mnt_major == major(statbuf.st_dev) && | |
3465 | entry.mnt_minor == minor(statbuf.st_dev)) | |
3466 | break; | |
3467 | } | |
3468 | if (ret != 0) { | |
3469 | if (op == OP_SHARE) { | |
3470 | (void) fprintf(stderr, gettext("cannot %s '%s': not " | |
3471 | "currently mounted\n"), cmdname, path); | |
3472 | return (1); | |
3473 | } | |
3474 | (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), | |
3475 | path); | |
3476 | if ((ret = umount2(path, flags)) != 0) | |
3477 | (void) fprintf(stderr, gettext("%s: %s\n"), path, | |
3478 | strerror(errno)); | |
3479 | return (ret != 0); | |
3480 | } | |
3481 | ||
3482 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { | |
3483 | (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " | |
3484 | "filesystem\n"), cmdname, path); | |
3485 | return (1); | |
3486 | } | |
3487 | ||
3488 | if ((zhp = zfs_open(g_zfs, entry.mnt_special, | |
3489 | ZFS_TYPE_FILESYSTEM)) == NULL) | |
3490 | return (1); | |
3491 | ||
3492 | ret = 1; | |
3493 | if (stat64(entry.mnt_mountp, &statbuf) != 0) { | |
3494 | (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), | |
3495 | cmdname, path, strerror(errno)); | |
3496 | goto out; | |
3497 | } else if (statbuf.st_ino != path_inode) { | |
3498 | (void) fprintf(stderr, gettext("cannot " | |
3499 | "%s '%s': not a mountpoint\n"), cmdname, path); | |
3500 | goto out; | |
3501 | } | |
3502 | ||
3503 | if (op == OP_SHARE) { | |
3504 | char nfs_mnt_prop[ZFS_MAXPROPLEN]; | |
3505 | char smbshare_prop[ZFS_MAXPROPLEN]; | |
3506 | ||
3507 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, | |
3508 | sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); | |
3509 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, | |
3510 | sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); | |
3511 | ||
3512 | if (strcmp(nfs_mnt_prop, "off") == 0 && | |
3513 | strcmp(smbshare_prop, "off") == 0) { | |
3514 | (void) fprintf(stderr, gettext("cannot unshare " | |
3515 | "'%s': legacy share\n"), path); | |
3516 | (void) fprintf(stderr, gettext("use " | |
3517 | "unshare(1M) to unshare this filesystem\n")); | |
3518 | } else if (!zfs_is_shared(zhp)) { | |
3519 | (void) fprintf(stderr, gettext("cannot unshare '%s': " | |
3520 | "not currently shared\n"), path); | |
3521 | } else { | |
3522 | ret = zfs_unshareall_bypath(zhp, path); | |
3523 | } | |
3524 | } else { | |
3525 | char mtpt_prop[ZFS_MAXPROPLEN]; | |
3526 | ||
3527 | verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, | |
3528 | sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); | |
3529 | ||
3530 | if (is_manual) { | |
3531 | ret = zfs_unmount(zhp, NULL, flags); | |
3532 | } else if (strcmp(mtpt_prop, "legacy") == 0) { | |
3533 | (void) fprintf(stderr, gettext("cannot unmount " | |
3534 | "'%s': legacy mountpoint\n"), | |
3535 | zfs_get_name(zhp)); | |
3536 | (void) fprintf(stderr, gettext("use umount(1M) " | |
3537 | "to unmount this filesystem\n")); | |
3538 | } else { | |
3539 | ret = zfs_unmountall(zhp, flags); | |
3540 | } | |
3541 | } | |
3542 | ||
3543 | out: | |
3544 | zfs_close(zhp); | |
3545 | ||
3546 | return (ret != 0); | |
3547 | } | |
3548 | ||
3549 | /* | |
3550 | * Generic callback for unsharing or unmounting a filesystem. | |
3551 | */ | |
3552 | static int | |
3553 | unshare_unmount(int op, int argc, char **argv) | |
3554 | { | |
3555 | int do_all = 0; | |
3556 | int flags = 0; | |
3557 | int ret = 0; | |
3558 | int c; | |
3559 | zfs_handle_t *zhp; | |
3560 | char nfs_mnt_prop[ZFS_MAXPROPLEN]; | |
3561 | char sharesmb[ZFS_MAXPROPLEN]; | |
3562 | ||
3563 | /* check options */ | |
3564 | while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { | |
3565 | switch (c) { | |
3566 | case 'a': | |
3567 | do_all = 1; | |
3568 | break; | |
3569 | case 'f': | |
3570 | flags = MS_FORCE; | |
3571 | break; | |
3572 | case '?': | |
3573 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
3574 | optopt); | |
3575 | usage(B_FALSE); | |
3576 | } | |
3577 | } | |
3578 | ||
3579 | argc -= optind; | |
3580 | argv += optind; | |
3581 | ||
3582 | if (do_all) { | |
3583 | /* | |
3584 | * We could make use of zfs_for_each() to walk all datasets in | |
3585 | * the system, but this would be very inefficient, especially | |
3586 | * since we would have to linearly search /etc/mnttab for each | |
3587 | * one. Instead, do one pass through /etc/mnttab looking for | |
3588 | * zfs entries and call zfs_unmount() for each one. | |
3589 | * | |
3590 | * Things get a little tricky if the administrator has created | |
3591 | * mountpoints beneath other ZFS filesystems. In this case, we | |
3592 | * have to unmount the deepest filesystems first. To accomplish | |
3593 | * this, we place all the mountpoints in an AVL tree sorted by | |
3594 | * the special type (dataset name), and walk the result in | |
3595 | * reverse to make sure to get any snapshots first. | |
3596 | */ | |
3597 | struct mnttab entry; | |
3598 | uu_avl_pool_t *pool; | |
3599 | uu_avl_t *tree; | |
3600 | unshare_unmount_node_t *node; | |
3601 | uu_avl_index_t idx; | |
3602 | uu_avl_walk_t *walk; | |
3603 | ||
3604 | if (argc != 0) { | |
3605 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
3606 | usage(B_FALSE); | |
3607 | } | |
3608 | ||
3609 | if (((pool = uu_avl_pool_create("unmount_pool", | |
3610 | sizeof (unshare_unmount_node_t), | |
3611 | offsetof(unshare_unmount_node_t, un_avlnode), | |
3612 | unshare_unmount_compare, UU_DEFAULT)) == NULL) || | |
3613 | ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) | |
3614 | nomem(); | |
3615 | ||
3616 | rewind(mnttab_file); | |
3617 | while (getmntent(mnttab_file, &entry) == 0) { | |
3618 | ||
3619 | /* ignore non-ZFS entries */ | |
3620 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
3621 | continue; | |
3622 | ||
3623 | /* ignore snapshots */ | |
3624 | if (strchr(entry.mnt_special, '@') != NULL) | |
3625 | continue; | |
3626 | ||
3627 | if ((zhp = zfs_open(g_zfs, entry.mnt_special, | |
3628 | ZFS_TYPE_FILESYSTEM)) == NULL) { | |
3629 | ret = 1; | |
3630 | continue; | |
3631 | } | |
3632 | ||
3633 | switch (op) { | |
3634 | case OP_SHARE: | |
3635 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, | |
3636 | nfs_mnt_prop, | |
3637 | sizeof (nfs_mnt_prop), | |
3638 | NULL, NULL, 0, B_FALSE) == 0); | |
3639 | if (strcmp(nfs_mnt_prop, "off") != 0) | |
3640 | break; | |
3641 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, | |
3642 | nfs_mnt_prop, | |
3643 | sizeof (nfs_mnt_prop), | |
3644 | NULL, NULL, 0, B_FALSE) == 0); | |
3645 | if (strcmp(nfs_mnt_prop, "off") == 0) | |
3646 | continue; | |
3647 | break; | |
3648 | case OP_MOUNT: | |
3649 | /* Ignore legacy mounts */ | |
3650 | verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, | |
3651 | nfs_mnt_prop, | |
3652 | sizeof (nfs_mnt_prop), | |
3653 | NULL, NULL, 0, B_FALSE) == 0); | |
3654 | if (strcmp(nfs_mnt_prop, "legacy") == 0) | |
3655 | continue; | |
3656 | /* Ignore canmount=noauto mounts */ | |
3657 | if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == | |
3658 | ZFS_CANMOUNT_NOAUTO) | |
3659 | continue; | |
3660 | default: | |
3661 | break; | |
3662 | } | |
3663 | ||
3664 | node = safe_malloc(sizeof (unshare_unmount_node_t)); | |
3665 | node->un_zhp = zhp; | |
3666 | node->un_mountp = safe_strdup(entry.mnt_mountp); | |
3667 | ||
3668 | uu_avl_node_init(node, &node->un_avlnode, pool); | |
3669 | ||
3670 | if (uu_avl_find(tree, node, NULL, &idx) == NULL) { | |
3671 | uu_avl_insert(tree, node, idx); | |
3672 | } else { | |
3673 | zfs_close(node->un_zhp); | |
3674 | free(node->un_mountp); | |
3675 | free(node); | |
3676 | } | |
3677 | } | |
3678 | ||
3679 | /* | |
3680 | * Walk the AVL tree in reverse, unmounting each filesystem and | |
3681 | * removing it from the AVL tree in the process. | |
3682 | */ | |
3683 | if ((walk = uu_avl_walk_start(tree, | |
3684 | UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) | |
3685 | nomem(); | |
3686 | ||
3687 | while ((node = uu_avl_walk_next(walk)) != NULL) { | |
3688 | uu_avl_remove(tree, node); | |
3689 | ||
3690 | switch (op) { | |
3691 | case OP_SHARE: | |
3692 | if (zfs_unshareall_bypath(node->un_zhp, | |
3693 | node->un_mountp) != 0) | |
3694 | ret = 1; | |
3695 | break; | |
3696 | ||
3697 | case OP_MOUNT: | |
3698 | if (zfs_unmount(node->un_zhp, | |
3699 | node->un_mountp, flags) != 0) | |
3700 | ret = 1; | |
3701 | break; | |
3702 | } | |
3703 | ||
3704 | zfs_close(node->un_zhp); | |
3705 | free(node->un_mountp); | |
3706 | free(node); | |
3707 | } | |
3708 | ||
3709 | uu_avl_walk_end(walk); | |
3710 | uu_avl_destroy(tree); | |
3711 | uu_avl_pool_destroy(pool); | |
3712 | ||
3713 | } else { | |
3714 | if (argc != 1) { | |
3715 | if (argc == 0) | |
3716 | (void) fprintf(stderr, | |
3717 | gettext("missing filesystem argument\n")); | |
3718 | else | |
3719 | (void) fprintf(stderr, | |
3720 | gettext("too many arguments\n")); | |
3721 | usage(B_FALSE); | |
3722 | } | |
3723 | ||
3724 | /* | |
3725 | * We have an argument, but it may be a full path or a ZFS | |
3726 | * filesystem. Pass full paths off to unmount_path() (shared by | |
3727 | * manual_unmount), otherwise open the filesystem and pass to | |
3728 | * zfs_unmount(). | |
3729 | */ | |
3730 | if (argv[0][0] == '/') | |
3731 | return (unshare_unmount_path(op, argv[0], | |
3732 | flags, B_FALSE)); | |
3733 | ||
3734 | if ((zhp = zfs_open(g_zfs, argv[0], | |
3735 | ZFS_TYPE_FILESYSTEM)) == NULL) | |
3736 | return (1); | |
3737 | ||
3738 | verify(zfs_prop_get(zhp, op == OP_SHARE ? | |
3739 | ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, | |
3740 | nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, | |
3741 | NULL, 0, B_FALSE) == 0); | |
3742 | ||
3743 | switch (op) { | |
3744 | case OP_SHARE: | |
3745 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, | |
3746 | nfs_mnt_prop, | |
3747 | sizeof (nfs_mnt_prop), | |
3748 | NULL, NULL, 0, B_FALSE) == 0); | |
3749 | verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, | |
3750 | sharesmb, sizeof (sharesmb), NULL, NULL, | |
3751 | 0, B_FALSE) == 0); | |
3752 | ||
3753 | if (strcmp(nfs_mnt_prop, "off") == 0 && | |
3754 | strcmp(sharesmb, "off") == 0) { | |
3755 | (void) fprintf(stderr, gettext("cannot " | |
3756 | "unshare '%s': legacy share\n"), | |
3757 | zfs_get_name(zhp)); | |
3758 | (void) fprintf(stderr, gettext("use " | |
3759 | "unshare(1M) to unshare this " | |
3760 | "filesystem\n")); | |
3761 | ret = 1; | |
3762 | } else if (!zfs_is_shared(zhp)) { | |
3763 | (void) fprintf(stderr, gettext("cannot " | |
3764 | "unshare '%s': not currently " | |
3765 | "shared\n"), zfs_get_name(zhp)); | |
3766 | ret = 1; | |
3767 | } else if (zfs_unshareall(zhp) != 0) { | |
3768 | ret = 1; | |
3769 | } | |
3770 | break; | |
3771 | ||
3772 | case OP_MOUNT: | |
3773 | if (strcmp(nfs_mnt_prop, "legacy") == 0) { | |
3774 | (void) fprintf(stderr, gettext("cannot " | |
3775 | "unmount '%s': legacy " | |
3776 | "mountpoint\n"), zfs_get_name(zhp)); | |
3777 | (void) fprintf(stderr, gettext("use " | |
3778 | "umount(1M) to unmount this " | |
3779 | "filesystem\n")); | |
3780 | ret = 1; | |
3781 | } else if (!zfs_is_mounted(zhp, NULL)) { | |
3782 | (void) fprintf(stderr, gettext("cannot " | |
3783 | "unmount '%s': not currently " | |
3784 | "mounted\n"), | |
3785 | zfs_get_name(zhp)); | |
3786 | ret = 1; | |
3787 | } else if (zfs_unmountall(zhp, flags) != 0) { | |
3788 | ret = 1; | |
3789 | } | |
3790 | break; | |
3791 | } | |
3792 | ||
3793 | zfs_close(zhp); | |
3794 | } | |
3795 | ||
3796 | return (ret); | |
3797 | } | |
3798 | ||
3799 | /* | |
3800 | * zfs unmount -a | |
3801 | * zfs unmount filesystem | |
3802 | * | |
3803 | * Unmount all filesystems, or a specific ZFS filesystem. | |
3804 | */ | |
3805 | static int | |
3806 | zfs_do_unmount(int argc, char **argv) | |
3807 | { | |
3808 | return (unshare_unmount(OP_MOUNT, argc, argv)); | |
3809 | } | |
3810 | ||
3811 | /* | |
3812 | * zfs unshare -a | |
3813 | * zfs unshare filesystem | |
3814 | * | |
3815 | * Unshare all filesystems, or a specific ZFS filesystem. | |
3816 | */ | |
3817 | static int | |
3818 | zfs_do_unshare(int argc, char **argv) | |
3819 | { | |
3820 | return (unshare_unmount(OP_SHARE, argc, argv)); | |
3821 | } | |
3822 | ||
3823 | /* ARGSUSED */ | |
3824 | static int | |
3825 | zfs_do_python(int argc, char **argv) | |
3826 | { | |
3827 | (void) execv(pypath, argv-1); | |
3828 | (void) printf("internal error: %s not found\n", pypath); | |
3829 | return (-1); | |
3830 | } | |
3831 | ||
3832 | /* | |
3833 | * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is | |
3834 | * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. | |
3835 | */ | |
3836 | static int | |
3837 | manual_mount(int argc, char **argv) | |
3838 | { | |
3839 | zfs_handle_t *zhp; | |
3840 | char mountpoint[ZFS_MAXPROPLEN]; | |
3841 | char mntopts[MNT_LINE_MAX] = { '\0' }; | |
3842 | int ret; | |
3843 | int c; | |
3844 | int flags = 0; | |
3845 | char *dataset, *path; | |
3846 | ||
3847 | /* check options */ | |
3848 | while ((c = getopt(argc, argv, ":mo:O")) != -1) { | |
3849 | switch (c) { | |
3850 | case 'o': | |
3851 | (void) strlcpy(mntopts, optarg, sizeof (mntopts)); | |
3852 | break; | |
3853 | case 'O': | |
3854 | flags |= MS_OVERLAY; | |
3855 | break; | |
3856 | case 'm': | |
3857 | flags |= MS_NOMNTTAB; | |
3858 | break; | |
3859 | case ':': | |
3860 | (void) fprintf(stderr, gettext("missing argument for " | |
3861 | "'%c' option\n"), optopt); | |
3862 | usage(B_FALSE); | |
3863 | break; | |
3864 | case '?': | |
3865 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
3866 | optopt); | |
3867 | (void) fprintf(stderr, gettext("usage: mount [-o opts] " | |
3868 | "<path>\n")); | |
3869 | return (2); | |
3870 | } | |
3871 | } | |
3872 | ||
3873 | argc -= optind; | |
3874 | argv += optind; | |
3875 | ||
3876 | /* check that we only have two arguments */ | |
3877 | if (argc != 2) { | |
3878 | if (argc == 0) | |
3879 | (void) fprintf(stderr, gettext("missing dataset " | |
3880 | "argument\n")); | |
3881 | else if (argc == 1) | |
3882 | (void) fprintf(stderr, | |
3883 | gettext("missing mountpoint argument\n")); | |
3884 | else | |
3885 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
3886 | (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); | |
3887 | return (2); | |
3888 | } | |
3889 | ||
3890 | dataset = argv[0]; | |
3891 | path = argv[1]; | |
3892 | ||
3893 | /* try to open the dataset */ | |
3894 | if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) | |
3895 | return (1); | |
3896 | ||
3897 | (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, | |
3898 | sizeof (mountpoint), NULL, NULL, 0, B_FALSE); | |
3899 | ||
3900 | /* check for legacy mountpoint and complain appropriately */ | |
3901 | ret = 0; | |
3902 | if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { | |
3903 | if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, | |
3904 | NULL, 0, mntopts, sizeof (mntopts)) != 0) { | |
3905 | (void) fprintf(stderr, gettext("mount failed: %s\n"), | |
3906 | strerror(errno)); | |
3907 | ret = 1; | |
3908 | } | |
3909 | } else { | |
3910 | (void) fprintf(stderr, gettext("filesystem '%s' cannot be " | |
3911 | "mounted using 'mount -F zfs'\n"), dataset); | |
3912 | (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " | |
3913 | "instead.\n"), path); | |
3914 | (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " | |
3915 | "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); | |
3916 | (void) fprintf(stderr, gettext("See zfs(1M) for more " | |
3917 | "information.\n")); | |
3918 | ret = 1; | |
3919 | } | |
3920 | ||
3921 | return (ret); | |
3922 | } | |
3923 | ||
3924 | /* | |
3925 | * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow | |
3926 | * unmounts of non-legacy filesystems, as this is the dominant administrative | |
3927 | * interface. | |
3928 | */ | |
3929 | static int | |
3930 | manual_unmount(int argc, char **argv) | |
3931 | { | |
3932 | int flags = 0; | |
3933 | int c; | |
3934 | ||
3935 | /* check options */ | |
3936 | while ((c = getopt(argc, argv, "f")) != -1) { | |
3937 | switch (c) { | |
3938 | case 'f': | |
3939 | flags = MS_FORCE; | |
3940 | break; | |
3941 | case '?': | |
3942 | (void) fprintf(stderr, gettext("invalid option '%c'\n"), | |
3943 | optopt); | |
3944 | (void) fprintf(stderr, gettext("usage: unmount [-f] " | |
3945 | "<path>\n")); | |
3946 | return (2); | |
3947 | } | |
3948 | } | |
3949 | ||
3950 | argc -= optind; | |
3951 | argv += optind; | |
3952 | ||
3953 | /* check arguments */ | |
3954 | if (argc != 1) { | |
3955 | if (argc == 0) | |
3956 | (void) fprintf(stderr, gettext("missing path " | |
3957 | "argument\n")); | |
3958 | else | |
3959 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
3960 | (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); | |
3961 | return (2); | |
3962 | } | |
3963 | ||
3964 | return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); | |
3965 | } | |
3966 | ||
3967 | static int | |
3968 | find_command_idx(char *command, int *idx) | |
3969 | { | |
3970 | int i; | |
3971 | ||
3972 | for (i = 0; i < NCOMMAND; i++) { | |
3973 | if (command_table[i].name == NULL) | |
3974 | continue; | |
3975 | ||
3976 | if (strcmp(command, command_table[i].name) == 0) { | |
3977 | *idx = i; | |
3978 | return (0); | |
3979 | } | |
3980 | } | |
3981 | return (1); | |
3982 | } | |
3983 | ||
3984 | static int | |
3985 | zfs_do_diff(int argc, char **argv) | |
3986 | { | |
3987 | zfs_handle_t *zhp; | |
3988 | int flags = 0; | |
3989 | char *tosnap = NULL; | |
3990 | char *fromsnap = NULL; | |
3991 | char *atp, *copy; | |
3992 | int err; | |
3993 | int c; | |
3994 | ||
3995 | while ((c = getopt(argc, argv, "FHt")) != -1) { | |
3996 | switch (c) { | |
3997 | case 'F': | |
3998 | flags |= ZFS_DIFF_CLASSIFY; | |
3999 | break; | |
4000 | case 'H': | |
4001 | flags |= ZFS_DIFF_PARSEABLE; | |
4002 | break; | |
4003 | case 't': | |
4004 | flags |= ZFS_DIFF_TIMESTAMP; | |
4005 | break; | |
4006 | default: | |
4007 | (void) fprintf(stderr, | |
4008 | gettext("invalid option '%c'\n"), optopt); | |
4009 | usage(B_FALSE); | |
4010 | } | |
4011 | } | |
4012 | ||
4013 | argc -= optind; | |
4014 | argv += optind; | |
4015 | ||
4016 | if (argc < 1) { | |
4017 | (void) fprintf(stderr, | |
4018 | gettext("must provide at least one snapshot name\n")); | |
4019 | usage(B_FALSE); | |
4020 | } | |
4021 | ||
4022 | if (argc > 2) { | |
4023 | (void) fprintf(stderr, gettext("too many arguments\n")); | |
4024 | usage(B_FALSE); | |
4025 | } | |
4026 | ||
4027 | fromsnap = argv[0]; | |
4028 | tosnap = (argc == 2) ? argv[1] : NULL; | |
4029 | ||
4030 | copy = NULL; | |
4031 | if (*fromsnap != '@') | |
4032 | copy = strdup(fromsnap); | |
4033 | else if (tosnap) | |
4034 | copy = strdup(tosnap); | |
4035 | if (copy == NULL) | |
4036 | usage(B_FALSE); | |
4037 | ||
4038 | if ((atp = strchr(copy, '@'))) | |
4039 | *atp = '\0'; | |
4040 | ||
4041 | if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) | |
4042 | return (1); | |
4043 | ||
4044 | free(copy); | |
4045 | ||
4046 | /* | |
4047 | * Ignore SIGPIPE so that the library can give us | |
4048 | * information on any failure | |
4049 | */ | |
4050 | (void) sigignore(SIGPIPE); | |
4051 | ||
4052 | err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); | |
4053 | ||
4054 | zfs_close(zhp); | |
4055 | ||
4056 | return (err != 0); | |
4057 | } | |
4058 | ||
4059 | int | |
4060 | main(int argc, char **argv) | |
4061 | { | |
4062 | int ret; | |
4063 | int i = 0; | |
4064 | char *progname; | |
4065 | char *cmdname; | |
4066 | ||
4067 | (void) setlocale(LC_ALL, ""); | |
4068 | (void) textdomain(TEXT_DOMAIN); | |
4069 | ||
4070 | opterr = 0; | |
4071 | ||
4072 | if ((g_zfs = libzfs_init()) == NULL) { | |
4073 | (void) fprintf(stderr, gettext("internal error: failed to " | |
4074 | "initialize ZFS library\n")); | |
4075 | return (1); | |
4076 | } | |
4077 | ||
4078 | zpool_set_history_str("zfs", argc, argv, history_str); | |
4079 | verify(zpool_stage_history(g_zfs, history_str) == 0); | |
4080 | ||
4081 | libzfs_print_on_error(g_zfs, B_TRUE); | |
4082 | ||
4083 | if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { | |
4084 | (void) fprintf(stderr, gettext("internal error: unable to " | |
4085 | "open %s\n"), MNTTAB); | |
4086 | return (1); | |
4087 | } | |
4088 | ||
4089 | /* | |
4090 | * This command also doubles as the /etc/fs mount and unmount program. | |
4091 | * Determine if we should take this behavior based on argv[0]. | |
4092 | */ | |
4093 | progname = basename(argv[0]); | |
4094 | if (strcmp(progname, "mount") == 0) { | |
4095 | ret = manual_mount(argc, argv); | |
4096 | } else if (strcmp(progname, "umount") == 0) { | |
4097 | ret = manual_unmount(argc, argv); | |
4098 | } else { | |
4099 | /* | |
4100 | * Make sure the user has specified some command. | |
4101 | */ | |
4102 | if (argc < 2) { | |
4103 | (void) fprintf(stderr, gettext("missing command\n")); | |
4104 | usage(B_FALSE); | |
4105 | } | |
4106 | ||
4107 | cmdname = argv[1]; | |
4108 | ||
4109 | /* | |
4110 | * The 'umount' command is an alias for 'unmount' | |
4111 | */ | |
4112 | if (strcmp(cmdname, "umount") == 0) | |
4113 | cmdname = "unmount"; | |
4114 | ||
4115 | /* | |
4116 | * The 'recv' command is an alias for 'receive' | |
4117 | */ | |
4118 | if (strcmp(cmdname, "recv") == 0) | |
4119 | cmdname = "receive"; | |
4120 | ||
4121 | /* | |
4122 | * Special case '-?' | |
4123 | */ | |
4124 | if (strcmp(cmdname, "-?") == 0) | |
4125 | usage(B_TRUE); | |
4126 | ||
4127 | /* | |
4128 | * Run the appropriate command. | |
4129 | */ | |
4130 | libzfs_mnttab_cache(g_zfs, B_TRUE); | |
4131 | if (find_command_idx(cmdname, &i) == 0) { | |
4132 | current_command = &command_table[i]; | |
4133 | ret = command_table[i].func(argc - 1, argv + 1); | |
4134 | } else if (strchr(cmdname, '=') != NULL) { | |
4135 | verify(find_command_idx("set", &i) == 0); | |
4136 | current_command = &command_table[i]; | |
4137 | ret = command_table[i].func(argc, argv); | |
4138 | } else { | |
4139 | (void) fprintf(stderr, gettext("unrecognized " | |
4140 | "command '%s'\n"), cmdname); | |
4141 | usage(B_FALSE); | |
4142 | ret = 1; | |
4143 | } | |
4144 | libzfs_mnttab_cache(g_zfs, B_FALSE); | |
4145 | } | |
4146 | ||
4147 | (void) fclose(mnttab_file); | |
4148 | ||
4149 | libzfs_fini(g_zfs); | |
4150 | ||
4151 | /* | |
4152 | * The 'ZFS_ABORT' environment variable causes us to dump core on exit | |
4153 | * for the purposes of running ::findleaks. | |
4154 | */ | |
4155 | if (getenv("ZFS_ABORT") != NULL) { | |
4156 | (void) printf("dumping core by request\n"); | |
4157 | abort(); | |
4158 | } | |
4159 | ||
4160 | return (ret); | |
4161 | } |