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.
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.
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]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2018, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
26 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
27 * Copyright (c) 2017 Datto Inc.
31 * Internal utility routines for the ZFS library.
44 #include <sys/mnttab.h>
45 #include <sys/mntent.h>
46 #include <sys/types.h>
50 #include <libzfs_core.h>
52 #include "libzfs_impl.h"
54 #include "zfeature_common.h"
55 #include <zfs_fletcher.h>
59 libzfs_errno(libzfs_handle_t
*hdl
)
61 return (hdl
->libzfs_error
);
65 libzfs_error_init(int error
)
69 return (dgettext(TEXT_DOMAIN
, "The ZFS modules are not "
70 "loaded.\nTry running '/sbin/modprobe zfs' as root "
73 return (dgettext(TEXT_DOMAIN
, "/dev/zfs and /proc/self/mounts "
74 "are required.\nTry running 'udevadm trigger' and 'mount "
75 "-t proc proc /proc' as root.\n"));
77 return (dgettext(TEXT_DOMAIN
, "The ZFS modules cannot be "
78 "auto-loaded.\nTry running '/sbin/modprobe zfs' as "
79 "root to manually load them.\n"));
81 return (dgettext(TEXT_DOMAIN
, "Permission denied the "
82 "ZFS utilities must be run as root.\n"));
84 return (dgettext(TEXT_DOMAIN
, "Failed to initialize the "
85 "libzfs library.\n"));
90 libzfs_error_action(libzfs_handle_t
*hdl
)
92 return (hdl
->libzfs_action
);
96 libzfs_error_description(libzfs_handle_t
*hdl
)
98 if (hdl
->libzfs_desc
[0] != '\0')
99 return (hdl
->libzfs_desc
);
101 switch (hdl
->libzfs_error
) {
103 return (dgettext(TEXT_DOMAIN
, "out of memory"));
105 return (dgettext(TEXT_DOMAIN
, "invalid property value"));
106 case EZFS_PROPREADONLY
:
107 return (dgettext(TEXT_DOMAIN
, "read-only property"));
109 return (dgettext(TEXT_DOMAIN
, "property doesn't apply to "
110 "datasets of this type"));
111 case EZFS_PROPNONINHERIT
:
112 return (dgettext(TEXT_DOMAIN
, "property cannot be inherited"));
114 return (dgettext(TEXT_DOMAIN
, "invalid quota or reservation"));
116 return (dgettext(TEXT_DOMAIN
, "operation not applicable to "
117 "datasets of this type"));
119 return (dgettext(TEXT_DOMAIN
, "pool or dataset is busy"));
121 return (dgettext(TEXT_DOMAIN
, "pool or dataset exists"));
123 return (dgettext(TEXT_DOMAIN
, "no such pool or dataset"));
125 return (dgettext(TEXT_DOMAIN
, "invalid backup stream"));
126 case EZFS_DSREADONLY
:
127 return (dgettext(TEXT_DOMAIN
, "dataset is read-only"));
129 return (dgettext(TEXT_DOMAIN
, "volume size exceeds limit for "
131 case EZFS_INVALIDNAME
:
132 return (dgettext(TEXT_DOMAIN
, "invalid name"));
133 case EZFS_BADRESTORE
:
134 return (dgettext(TEXT_DOMAIN
, "unable to restore to "
137 return (dgettext(TEXT_DOMAIN
, "backup failed"));
139 return (dgettext(TEXT_DOMAIN
, "invalid target vdev"));
141 return (dgettext(TEXT_DOMAIN
, "no such device in pool"));
143 return (dgettext(TEXT_DOMAIN
, "invalid device"));
144 case EZFS_NOREPLICAS
:
145 return (dgettext(TEXT_DOMAIN
, "no valid replicas"));
146 case EZFS_RESILVERING
:
147 return (dgettext(TEXT_DOMAIN
, "currently resilvering"));
148 case EZFS_BADVERSION
:
149 return (dgettext(TEXT_DOMAIN
, "unsupported version or "
151 case EZFS_POOLUNAVAIL
:
152 return (dgettext(TEXT_DOMAIN
, "pool is unavailable"));
153 case EZFS_DEVOVERFLOW
:
154 return (dgettext(TEXT_DOMAIN
, "too many devices in one vdev"));
156 return (dgettext(TEXT_DOMAIN
, "must be an absolute path"));
157 case EZFS_CROSSTARGET
:
158 return (dgettext(TEXT_DOMAIN
, "operation crosses datasets or "
161 return (dgettext(TEXT_DOMAIN
, "dataset in use by local zone"));
162 case EZFS_MOUNTFAILED
:
163 return (dgettext(TEXT_DOMAIN
, "mount failed"));
164 case EZFS_UMOUNTFAILED
:
165 return (dgettext(TEXT_DOMAIN
, "umount failed"));
166 case EZFS_UNSHARENFSFAILED
:
167 return (dgettext(TEXT_DOMAIN
, "unshare(1M) failed"));
168 case EZFS_SHARENFSFAILED
:
169 return (dgettext(TEXT_DOMAIN
, "share(1M) failed"));
170 case EZFS_UNSHARESMBFAILED
:
171 return (dgettext(TEXT_DOMAIN
, "smb remove share failed"));
172 case EZFS_SHARESMBFAILED
:
173 return (dgettext(TEXT_DOMAIN
, "smb add share failed"));
175 return (dgettext(TEXT_DOMAIN
, "permission denied"));
177 return (dgettext(TEXT_DOMAIN
, "out of space"));
179 return (dgettext(TEXT_DOMAIN
, "bad address"));
181 return (dgettext(TEXT_DOMAIN
, "I/O error"));
183 return (dgettext(TEXT_DOMAIN
, "signal received"));
185 return (dgettext(TEXT_DOMAIN
, "device is reserved as a hot "
187 case EZFS_INVALCONFIG
:
188 return (dgettext(TEXT_DOMAIN
, "invalid vdev configuration"));
190 return (dgettext(TEXT_DOMAIN
, "recursive dataset dependency"));
192 return (dgettext(TEXT_DOMAIN
, "no history available"));
194 return (dgettext(TEXT_DOMAIN
, "failed to retrieve "
196 case EZFS_POOL_NOTSUP
:
197 return (dgettext(TEXT_DOMAIN
, "operation not supported "
198 "on this type of pool"));
199 case EZFS_POOL_INVALARG
:
200 return (dgettext(TEXT_DOMAIN
, "invalid argument for "
201 "this pool operation"));
202 case EZFS_NAMETOOLONG
:
203 return (dgettext(TEXT_DOMAIN
, "dataset name is too long"));
204 case EZFS_OPENFAILED
:
205 return (dgettext(TEXT_DOMAIN
, "open failed"));
207 return (dgettext(TEXT_DOMAIN
,
208 "disk capacity information could not be retrieved"));
209 case EZFS_LABELFAILED
:
210 return (dgettext(TEXT_DOMAIN
, "write of label failed"));
212 return (dgettext(TEXT_DOMAIN
, "invalid user/group"));
214 return (dgettext(TEXT_DOMAIN
, "invalid permission"));
215 case EZFS_BADPERMSET
:
216 return (dgettext(TEXT_DOMAIN
, "invalid permission set name"));
217 case EZFS_NODELEGATION
:
218 return (dgettext(TEXT_DOMAIN
, "delegated administration is "
219 "disabled on pool"));
221 return (dgettext(TEXT_DOMAIN
, "invalid or missing cache file"));
223 return (dgettext(TEXT_DOMAIN
, "device is in use as a cache"));
224 case EZFS_VDEVNOTSUP
:
225 return (dgettext(TEXT_DOMAIN
, "vdev specification is not "
228 return (dgettext(TEXT_DOMAIN
, "operation not supported "
230 case EZFS_IOC_NOTSUPPORTED
:
231 return (dgettext(TEXT_DOMAIN
, "operation not supported by "
232 "zfs kernel module"));
233 case EZFS_ACTIVE_SPARE
:
234 return (dgettext(TEXT_DOMAIN
, "pool has active shared spare "
236 case EZFS_UNPLAYED_LOGS
:
237 return (dgettext(TEXT_DOMAIN
, "log device has unplayed intent "
239 case EZFS_REFTAG_RELE
:
240 return (dgettext(TEXT_DOMAIN
, "no such tag on this dataset"));
241 case EZFS_REFTAG_HOLD
:
242 return (dgettext(TEXT_DOMAIN
, "tag already exists on this "
244 case EZFS_TAGTOOLONG
:
245 return (dgettext(TEXT_DOMAIN
, "tag too long"));
246 case EZFS_PIPEFAILED
:
247 return (dgettext(TEXT_DOMAIN
, "pipe create failed"));
248 case EZFS_THREADCREATEFAILED
:
249 return (dgettext(TEXT_DOMAIN
, "thread create failed"));
250 case EZFS_POSTSPLIT_ONLINE
:
251 return (dgettext(TEXT_DOMAIN
, "disk was split from this pool "
253 case EZFS_SCRUB_PAUSED
:
254 return (dgettext(TEXT_DOMAIN
, "scrub is paused; "
255 "use 'zpool scrub' to resume"));
257 return (dgettext(TEXT_DOMAIN
, "currently scrubbing; "
258 "use 'zpool scrub -s' to cancel current scrub"));
260 return (dgettext(TEXT_DOMAIN
, "there is no active scrub"));
262 return (dgettext(TEXT_DOMAIN
, "unable to generate diffs"));
264 return (dgettext(TEXT_DOMAIN
, "invalid diff data"));
265 case EZFS_POOLREADONLY
:
266 return (dgettext(TEXT_DOMAIN
, "pool is read-only"));
267 case EZFS_NO_PENDING
:
268 return (dgettext(TEXT_DOMAIN
, "operation is not "
270 case EZFS_CHECKPOINT_EXISTS
:
271 return (dgettext(TEXT_DOMAIN
, "checkpoint exists"));
272 case EZFS_DISCARDING_CHECKPOINT
:
273 return (dgettext(TEXT_DOMAIN
, "currently discarding "
275 case EZFS_NO_CHECKPOINT
:
276 return (dgettext(TEXT_DOMAIN
, "checkpoint does not exist"));
277 case EZFS_DEVRM_IN_PROGRESS
:
278 return (dgettext(TEXT_DOMAIN
, "device removal in progress"));
279 case EZFS_VDEV_TOO_BIG
:
280 return (dgettext(TEXT_DOMAIN
, "device exceeds supported size"));
281 case EZFS_ACTIVE_POOL
:
282 return (dgettext(TEXT_DOMAIN
, "pool is imported on a "
284 case EZFS_CRYPTOFAILED
:
285 return (dgettext(TEXT_DOMAIN
, "encryption failure"));
287 return (dgettext(TEXT_DOMAIN
, "unknown error"));
289 assert(hdl
->libzfs_error
== 0);
290 return (dgettext(TEXT_DOMAIN
, "no error"));
296 zfs_error_aux(libzfs_handle_t
*hdl
, const char *fmt
, ...)
302 (void) vsnprintf(hdl
->libzfs_desc
, sizeof (hdl
->libzfs_desc
),
304 hdl
->libzfs_desc_active
= 1;
310 zfs_verror(libzfs_handle_t
*hdl
, int error
, const char *fmt
, va_list ap
)
312 (void) vsnprintf(hdl
->libzfs_action
, sizeof (hdl
->libzfs_action
),
314 hdl
->libzfs_error
= error
;
316 if (hdl
->libzfs_desc_active
)
317 hdl
->libzfs_desc_active
= 0;
319 hdl
->libzfs_desc
[0] = '\0';
321 if (hdl
->libzfs_printerr
) {
322 if (error
== EZFS_UNKNOWN
) {
323 (void) fprintf(stderr
, dgettext(TEXT_DOMAIN
, "internal "
324 "error: %s\n"), libzfs_error_description(hdl
));
328 (void) fprintf(stderr
, "%s: %s\n", hdl
->libzfs_action
,
329 libzfs_error_description(hdl
));
330 if (error
== EZFS_NOMEM
)
336 zfs_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
338 return (zfs_error_fmt(hdl
, error
, "%s", msg
));
343 zfs_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
349 zfs_verror(hdl
, error
, fmt
, ap
);
357 zfs_common_error(libzfs_handle_t
*hdl
, int error
, const char *fmt
,
363 zfs_verror(hdl
, EZFS_PERM
, fmt
, ap
);
367 zfs_verror(hdl
, EZFS_NODELEGATION
, fmt
, ap
);
371 zfs_verror(hdl
, EZFS_IO
, fmt
, ap
);
375 zfs_verror(hdl
, EZFS_FAULT
, fmt
, ap
);
379 zfs_verror(hdl
, EZFS_INTR
, fmt
, ap
);
387 zfs_standard_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
389 return (zfs_standard_error_fmt(hdl
, error
, "%s", msg
));
394 zfs_standard_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
400 if (zfs_common_error(hdl
, error
, fmt
, ap
) != 0) {
409 zfs_verror(hdl
, EZFS_IO
, fmt
, ap
);
413 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
414 "dataset does not exist"));
415 zfs_verror(hdl
, EZFS_NOENT
, fmt
, ap
);
420 zfs_verror(hdl
, EZFS_NOSPC
, fmt
, ap
);
424 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
425 "dataset already exists"));
426 zfs_verror(hdl
, EZFS_EXISTS
, fmt
, ap
);
430 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
432 zfs_verror(hdl
, EZFS_BUSY
, fmt
, ap
);
435 zfs_verror(hdl
, EZFS_POOLREADONLY
, fmt
, ap
);
438 zfs_verror(hdl
, EZFS_NAMETOOLONG
, fmt
, ap
);
441 zfs_verror(hdl
, EZFS_BADVERSION
, fmt
, ap
);
444 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
445 "pool I/O is currently suspended"));
446 zfs_verror(hdl
, EZFS_POOLUNAVAIL
, fmt
, ap
);
449 zfs_verror(hdl
, EZFS_ACTIVE_POOL
, fmt
, ap
);
451 case ZFS_ERR_IOC_CMD_UNAVAIL
:
452 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "the loaded zfs "
453 "module does not support this operation. A reboot may "
454 "be required to enable this operation."));
455 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
457 case ZFS_ERR_IOC_ARG_UNAVAIL
:
458 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "the loaded zfs "
459 "module does not support an option for this operation. "
460 "A reboot may be required to enable this option."));
461 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
463 case ZFS_ERR_IOC_ARG_REQUIRED
:
464 case ZFS_ERR_IOC_ARG_BADTYPE
:
465 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
468 zfs_error_aux(hdl
, strerror(error
));
469 zfs_verror(hdl
, EZFS_UNKNOWN
, fmt
, ap
);
478 zpool_standard_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
480 return (zpool_standard_error_fmt(hdl
, error
, "%s", msg
));
485 zpool_standard_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
491 if (zfs_common_error(hdl
, error
, fmt
, ap
) != 0) {
498 zfs_verror(hdl
, EZFS_NODEVICE
, fmt
, ap
);
503 dgettext(TEXT_DOMAIN
, "no such pool or dataset"));
504 zfs_verror(hdl
, EZFS_NOENT
, fmt
, ap
);
508 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
509 "pool already exists"));
510 zfs_verror(hdl
, EZFS_EXISTS
, fmt
, ap
);
514 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "pool is busy"));
515 zfs_verror(hdl
, EZFS_BUSY
, fmt
, ap
);
518 /* There is no pending operation to cancel */
520 zfs_verror(hdl
, EZFS_NO_PENDING
, fmt
, ap
);
524 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
525 "one or more devices is currently unavailable"));
526 zfs_verror(hdl
, EZFS_BADDEV
, fmt
, ap
);
530 zfs_verror(hdl
, EZFS_DEVOVERFLOW
, fmt
, ap
);
534 zfs_verror(hdl
, EZFS_POOL_NOTSUP
, fmt
, ap
);
538 zfs_verror(hdl
, EZFS_POOL_INVALARG
, fmt
, ap
);
543 zfs_verror(hdl
, EZFS_NOSPC
, fmt
, ap
);
547 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
548 "pool I/O is currently suspended"));
549 zfs_verror(hdl
, EZFS_POOLUNAVAIL
, fmt
, ap
);
553 zfs_verror(hdl
, EZFS_POOLREADONLY
, fmt
, ap
);
556 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
557 "block size out of range or does not match"));
558 zfs_verror(hdl
, EZFS_BADPROP
, fmt
, ap
);
561 zfs_verror(hdl
, EZFS_ACTIVE_POOL
, fmt
, ap
);
563 case ZFS_ERR_CHECKPOINT_EXISTS
:
564 zfs_verror(hdl
, EZFS_CHECKPOINT_EXISTS
, fmt
, ap
);
566 case ZFS_ERR_DISCARDING_CHECKPOINT
:
567 zfs_verror(hdl
, EZFS_DISCARDING_CHECKPOINT
, fmt
, ap
);
569 case ZFS_ERR_NO_CHECKPOINT
:
570 zfs_verror(hdl
, EZFS_NO_CHECKPOINT
, fmt
, ap
);
572 case ZFS_ERR_DEVRM_IN_PROGRESS
:
573 zfs_verror(hdl
, EZFS_DEVRM_IN_PROGRESS
, fmt
, ap
);
575 case ZFS_ERR_VDEV_TOO_BIG
:
576 zfs_verror(hdl
, EZFS_VDEV_TOO_BIG
, fmt
, ap
);
578 case ZFS_ERR_IOC_CMD_UNAVAIL
:
579 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "the loaded zfs "
580 "module does not support this operation. A reboot may "
581 "be required to enable this operation."));
582 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
584 case ZFS_ERR_IOC_ARG_UNAVAIL
:
585 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "the loaded zfs "
586 "module does not support an option for this operation. "
587 "A reboot may be required to enable this option."));
588 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
590 case ZFS_ERR_IOC_ARG_REQUIRED
:
591 case ZFS_ERR_IOC_ARG_BADTYPE
:
592 zfs_verror(hdl
, EZFS_IOC_NOTSUPPORTED
, fmt
, ap
);
595 zfs_error_aux(hdl
, strerror(error
));
596 zfs_verror(hdl
, EZFS_UNKNOWN
, fmt
, ap
);
604 * Display an out of memory error message and abort the current program.
607 no_memory(libzfs_handle_t
*hdl
)
609 return (zfs_error(hdl
, EZFS_NOMEM
, "internal error"));
613 * A safe form of malloc() which will die if the allocation fails.
616 zfs_alloc(libzfs_handle_t
*hdl
, size_t size
)
620 if ((data
= calloc(1, size
)) == NULL
)
621 (void) no_memory(hdl
);
627 * A safe form of asprintf() which will die if the allocation fails.
631 zfs_asprintf(libzfs_handle_t
*hdl
, const char *fmt
, ...)
639 err
= vasprintf(&ret
, fmt
, ap
);
644 (void) no_memory(hdl
);
650 * A safe form of realloc(), which also zeroes newly allocated space.
653 zfs_realloc(libzfs_handle_t
*hdl
, void *ptr
, size_t oldsize
, size_t newsize
)
657 if ((ret
= realloc(ptr
, newsize
)) == NULL
) {
658 (void) no_memory(hdl
);
662 bzero((char *)ret
+ oldsize
, (newsize
- oldsize
));
667 * A safe form of strdup() which will die if the allocation fails.
670 zfs_strdup(libzfs_handle_t
*hdl
, const char *str
)
674 if ((ret
= strdup(str
)) == NULL
)
675 (void) no_memory(hdl
);
681 libzfs_print_on_error(libzfs_handle_t
*hdl
, boolean_t printerr
)
683 hdl
->libzfs_printerr
= printerr
;
687 libzfs_module_loaded(const char *module
)
689 const char path_prefix
[] = "/sys/module/";
692 memcpy(path
, path_prefix
, sizeof (path_prefix
) - 1);
693 strcpy(path
+ sizeof (path_prefix
) - 1, module
);
695 return (access(path
, F_OK
) == 0);
700 * Read lines from an open file descriptor and store them in an array of
701 * strings until EOF. lines[] will be allocated and populated with all the
702 * lines read. All newlines are replaced with NULL terminators for
703 * convenience. lines[] must be freed after use with libzfs_free_str_array().
705 * Returns the number of lines read.
708 libzfs_read_stdout_from_fd(int fd
, char **lines
[])
715 char **tmp_lines
= NULL
, **tmp
;
719 fp
= fdopen(fd
, "r");
723 rc
= getline(&line
, &len
, fp
);
727 tmp
= realloc(tmp_lines
, sizeof (*tmp_lines
) * (lines_cnt
+ 1));
729 /* Return the lines we were able to process */
734 /* Terminate newlines */
735 if ((nl
= strchr(line
, '\n')) != NULL
)
737 tmp_lines
[lines_cnt
] = line
;
747 libzfs_run_process_impl(const char *path
, char *argv
[], char *env
[], int flags
,
748 char **lines
[], int *lines_cnt
)
751 int error
, devnull_fd
;
755 * Setup a pipe between our child and parent process if we're
758 if ((lines
!= NULL
) && pipe(link
) == -1)
764 devnull_fd
= open("/dev/null", O_WRONLY
);
769 if (!(flags
& STDOUT_VERBOSE
) && (lines
== NULL
))
770 (void) dup2(devnull_fd
, STDOUT_FILENO
);
771 else if (lines
!= NULL
) {
772 /* Save the output to lines[] */
773 dup2(link
[1], STDOUT_FILENO
);
778 if (!(flags
& STDERR_VERBOSE
))
779 (void) dup2(devnull_fd
, STDERR_FILENO
);
783 if (flags
& NO_DEFAULT_PATH
) {
787 execve(path
, argv
, env
);
792 execvpe(path
, argv
, env
);
796 } else if (pid
> 0) {
800 while ((error
= waitpid(pid
, &status
, 0)) == -1 &&
802 if (error
< 0 || !WIFEXITED(status
))
807 *lines_cnt
= libzfs_read_stdout_from_fd(link
[0], lines
);
809 return (WEXITSTATUS(status
));
816 libzfs_run_process(const char *path
, char *argv
[], int flags
)
818 return (libzfs_run_process_impl(path
, argv
, NULL
, flags
, NULL
, NULL
));
822 * Run a command and store its stdout lines in an array of strings (lines[]).
823 * lines[] is allocated and populated for you, and the number of lines is set in
824 * lines_cnt. lines[] must be freed after use with libzfs_free_str_array().
825 * All newlines (\n) in lines[] are terminated for convenience.
828 libzfs_run_process_get_stdout(const char *path
, char *argv
[], char *env
[],
829 char **lines
[], int *lines_cnt
)
831 return (libzfs_run_process_impl(path
, argv
, env
, 0, lines
, lines_cnt
));
835 * Same as libzfs_run_process_get_stdout(), but run without $PATH set. This
836 * means that *path needs to be the full path to the executable.
839 libzfs_run_process_get_stdout_nopath(const char *path
, char *argv
[],
840 char *env
[], char **lines
[], int *lines_cnt
)
842 return (libzfs_run_process_impl(path
, argv
, env
, NO_DEFAULT_PATH
,
847 * Free an array of strings. Free both the strings contained in the array and
851 libzfs_free_str_array(char **strs
, int count
)
860 * Returns 1 if environment variable is set to "YES", "yes", "ON", "on", or
863 * Returns 0 otherwise.
866 libzfs_envvar_is_set(char *envvar
)
868 char *env
= getenv(envvar
);
869 if (env
&& (strtoul(env
, NULL
, 0) > 0 ||
870 (!strncasecmp(env
, "YES", 3) && strnlen(env
, 4) == 3) ||
871 (!strncasecmp(env
, "ON", 2) && strnlen(env
, 3) == 2)))
878 * Verify the required ZFS_DEV device is available and optionally attempt
879 * to load the ZFS modules. Under normal circumstances the modules
880 * should already have been loaded by some external mechanism.
882 * Environment variables:
883 * - ZFS_MODULE_LOADING="YES|yes|ON|on" - Attempt to load modules.
884 * - ZFS_MODULE_TIMEOUT="<seconds>" - Seconds to wait for ZFS_DEV
887 libzfs_load_module(const char *module
)
889 char *argv
[4] = {"/sbin/modprobe", "-q", (char *)module
, (char *)0};
890 char *load_str
, *timeout_str
;
891 long timeout
= 10; /* seconds */
892 long busy_timeout
= 10; /* milliseconds */
896 /* Optionally request module loading */
897 if (!libzfs_module_loaded(module
)) {
898 load_str
= getenv("ZFS_MODULE_LOADING");
900 if (!strncasecmp(load_str
, "YES", strlen("YES")) ||
901 !strncasecmp(load_str
, "ON", strlen("ON")))
908 if (libzfs_run_process("/sbin/modprobe", argv
, 0))
911 if (!libzfs_module_loaded(module
))
917 * Device creation by udev is asynchronous and waiting may be
918 * required. Busy wait for 10ms and then fall back to polling every
919 * 10ms for the allowed timeout (default 10s, max 10m). This is
920 * done to optimize for the common case where the device is
921 * immediately available and to avoid penalizing the possible
922 * case where udev is slow or unable to create the device.
924 timeout_str
= getenv("ZFS_MODULE_TIMEOUT");
926 timeout
= strtol(timeout_str
, NULL
, 0);
927 timeout
= MAX(MIN(timeout
, (10 * 60)), 0); /* 0 <= N <= 600 */
932 fd
= open(ZFS_DEV
, O_RDWR
);
936 } else if (errno
!= ENOENT
) {
938 } else if (NSEC2MSEC(gethrtime() - start
) < busy_timeout
) {
941 usleep(10 * MILLISEC
);
943 } while (NSEC2MSEC(gethrtime() - start
) < (timeout
* MILLISEC
));
951 libzfs_handle_t
*hdl
;
954 error
= libzfs_load_module(ZFS_DRIVER
);
960 if ((hdl
= calloc(1, sizeof (libzfs_handle_t
))) == NULL
) {
964 if ((hdl
->libzfs_fd
= open(ZFS_DEV
, O_RDWR
)) < 0) {
969 #ifdef HAVE_SETMNTENT
970 if ((hdl
->libzfs_mnttab
= setmntent(MNTTAB
, "r")) == NULL
) {
972 if ((hdl
->libzfs_mnttab
= fopen(MNTTAB
, "r")) == NULL
) {
974 (void) close(hdl
->libzfs_fd
);
979 hdl
->libzfs_sharetab
= fopen(ZFS_SHARETAB
, "r");
981 if (libzfs_core_init() != 0) {
982 (void) close(hdl
->libzfs_fd
);
983 (void) fclose(hdl
->libzfs_mnttab
);
984 if (hdl
->libzfs_sharetab
)
985 (void) fclose(hdl
->libzfs_sharetab
);
992 zpool_feature_init();
993 libzfs_mnttab_init(hdl
);
996 if (getenv("ZFS_PROP_DEBUG") != NULL
) {
997 hdl
->libzfs_prop_debug
= B_TRUE
;
1001 * For testing, remove some settable properties and features
1003 if (libzfs_envvar_is_set("ZFS_SYSFS_PROP_SUPPORT_TEST")) {
1004 zprop_desc_t
*proptbl
;
1006 proptbl
= zpool_prop_get_table();
1007 proptbl
[ZPOOL_PROP_COMMENT
].pd_zfs_mod_supported
= B_FALSE
;
1009 proptbl
= zfs_prop_get_table();
1010 proptbl
[ZFS_PROP_DNODESIZE
].pd_zfs_mod_supported
= B_FALSE
;
1012 zfeature_info_t
*ftbl
= spa_feature_table
;
1013 ftbl
[SPA_FEATURE_LARGE_BLOCKS
].fi_zfs_mod_supported
= B_FALSE
;
1020 libzfs_fini(libzfs_handle_t
*hdl
)
1022 (void) close(hdl
->libzfs_fd
);
1023 if (hdl
->libzfs_mnttab
)
1024 #ifdef HAVE_SETMNTENT
1025 (void) endmntent(hdl
->libzfs_mnttab
);
1027 (void) fclose(hdl
->libzfs_mnttab
);
1029 if (hdl
->libzfs_sharetab
)
1030 (void) fclose(hdl
->libzfs_sharetab
);
1031 zfs_uninit_libshare(hdl
);
1032 zpool_free_handles(hdl
);
1033 namespace_clear(hdl
);
1034 libzfs_mnttab_fini(hdl
);
1041 zpool_get_handle(zpool_handle_t
*zhp
)
1043 return (zhp
->zpool_hdl
);
1047 zfs_get_handle(zfs_handle_t
*zhp
)
1049 return (zhp
->zfs_hdl
);
1053 zfs_get_pool_handle(const zfs_handle_t
*zhp
)
1055 return (zhp
->zpool_hdl
);
1059 * Given a name, determine whether or not it's a valid path
1060 * (starts with '/' or "./"). If so, walk the mnttab trying
1061 * to match the device number. If not, treat the path as an
1062 * fs/vol/snap/bkmark name.
1065 zfs_path_to_zhandle(libzfs_handle_t
*hdl
, char *path
, zfs_type_t argtype
)
1067 struct stat64 statbuf
;
1068 struct extmnttab entry
;
1071 if (path
[0] != '/' && strncmp(path
, "./", strlen("./")) != 0) {
1073 * It's not a valid path, assume it's a name of type 'argtype'.
1075 return (zfs_open(hdl
, path
, argtype
));
1078 if (stat64(path
, &statbuf
) != 0) {
1079 (void) fprintf(stderr
, "%s: %s\n", path
, strerror(errno
));
1083 /* Reopen MNTTAB to prevent reading stale data from open file */
1084 if (freopen(MNTTAB
, "r", hdl
->libzfs_mnttab
) == NULL
)
1087 while ((ret
= getextmntent(hdl
->libzfs_mnttab
, &entry
, 0)) == 0) {
1088 if (makedevice(entry
.mnt_major
, entry
.mnt_minor
) ==
1097 if (strcmp(entry
.mnt_fstype
, MNTTYPE_ZFS
) != 0) {
1098 (void) fprintf(stderr
, gettext("'%s': not a ZFS filesystem\n"),
1103 return (zfs_open(hdl
, entry
.mnt_special
, ZFS_TYPE_FILESYSTEM
));
1107 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
1111 zcmd_alloc_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, size_t len
)
1115 zc
->zc_nvlist_dst_size
= len
;
1117 (uint64_t)(uintptr_t)zfs_alloc(hdl
, zc
->zc_nvlist_dst_size
);
1118 if (zc
->zc_nvlist_dst
== 0)
1125 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
1126 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
1127 * filled in by the kernel to indicate the actual required size.
1130 zcmd_expand_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
)
1132 free((void *)(uintptr_t)zc
->zc_nvlist_dst
);
1134 (uint64_t)(uintptr_t)zfs_alloc(hdl
, zc
->zc_nvlist_dst_size
);
1135 if (zc
->zc_nvlist_dst
== 0)
1142 * Called to free the src and dst nvlists stored in the command structure.
1145 zcmd_free_nvlists(zfs_cmd_t
*zc
)
1147 free((void *)(uintptr_t)zc
->zc_nvlist_conf
);
1148 free((void *)(uintptr_t)zc
->zc_nvlist_src
);
1149 free((void *)(uintptr_t)zc
->zc_nvlist_dst
);
1150 zc
->zc_nvlist_conf
= 0;
1151 zc
->zc_nvlist_src
= 0;
1152 zc
->zc_nvlist_dst
= 0;
1156 zcmd_write_nvlist_com(libzfs_handle_t
*hdl
, uint64_t *outnv
, uint64_t *outlen
,
1162 verify(nvlist_size(nvl
, &len
, NV_ENCODE_NATIVE
) == 0);
1164 if ((packed
= zfs_alloc(hdl
, len
)) == NULL
)
1167 verify(nvlist_pack(nvl
, &packed
, &len
, NV_ENCODE_NATIVE
, 0) == 0);
1169 *outnv
= (uint64_t)(uintptr_t)packed
;
1176 zcmd_write_conf_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1178 return (zcmd_write_nvlist_com(hdl
, &zc
->zc_nvlist_conf
,
1179 &zc
->zc_nvlist_conf_size
, nvl
));
1183 zcmd_write_src_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1185 return (zcmd_write_nvlist_com(hdl
, &zc
->zc_nvlist_src
,
1186 &zc
->zc_nvlist_src_size
, nvl
));
1190 * Unpacks an nvlist from the ZFS ioctl command structure.
1193 zcmd_read_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
**nvlp
)
1195 if (nvlist_unpack((void *)(uintptr_t)zc
->zc_nvlist_dst
,
1196 zc
->zc_nvlist_dst_size
, nvlp
, 0) != 0)
1197 return (no_memory(hdl
));
1203 zfs_ioctl(libzfs_handle_t
*hdl
, int request
, zfs_cmd_t
*zc
)
1205 return (ioctl(hdl
->libzfs_fd
, request
, zc
));
1209 * ================================================================
1210 * API shared by zfs and zpool property management
1211 * ================================================================
1215 zprop_print_headers(zprop_get_cbdata_t
*cbp
, zfs_type_t type
)
1217 zprop_list_t
*pl
= cbp
->cb_proplist
;
1222 cbp
->cb_first
= B_FALSE
;
1223 if (cbp
->cb_scripted
)
1227 * Start with the length of the column headers.
1229 cbp
->cb_colwidths
[GET_COL_NAME
] = strlen(dgettext(TEXT_DOMAIN
, "NAME"));
1230 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = strlen(dgettext(TEXT_DOMAIN
,
1232 cbp
->cb_colwidths
[GET_COL_VALUE
] = strlen(dgettext(TEXT_DOMAIN
,
1234 cbp
->cb_colwidths
[GET_COL_RECVD
] = strlen(dgettext(TEXT_DOMAIN
,
1236 cbp
->cb_colwidths
[GET_COL_SOURCE
] = strlen(dgettext(TEXT_DOMAIN
,
1239 /* first property is always NAME */
1240 assert(cbp
->cb_proplist
->pl_prop
==
1241 ((type
== ZFS_TYPE_POOL
) ? ZPOOL_PROP_NAME
: ZFS_PROP_NAME
));
1244 * Go through and calculate the widths for each column. For the
1245 * 'source' column, we kludge it up by taking the worst-case scenario of
1246 * inheriting from the longest name. This is acceptable because in the
1247 * majority of cases 'SOURCE' is the last column displayed, and we don't
1248 * use the width anyway. Note that the 'VALUE' column can be oversized,
1249 * if the name of the property is much longer than any values we find.
1251 for (pl
= cbp
->cb_proplist
; pl
!= NULL
; pl
= pl
->pl_next
) {
1255 if (pl
->pl_prop
!= ZPROP_INVAL
) {
1256 const char *propname
= (type
== ZFS_TYPE_POOL
) ?
1257 zpool_prop_to_name(pl
->pl_prop
) :
1258 zfs_prop_to_name(pl
->pl_prop
);
1260 len
= strlen(propname
);
1261 if (len
> cbp
->cb_colwidths
[GET_COL_PROPERTY
])
1262 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = len
;
1264 len
= strlen(pl
->pl_user_prop
);
1265 if (len
> cbp
->cb_colwidths
[GET_COL_PROPERTY
])
1266 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = len
;
1270 * 'VALUE' column. The first property is always the 'name'
1271 * property that was tacked on either by /sbin/zfs's
1272 * zfs_do_get() or when calling zprop_expand_list(), so we
1273 * ignore its width. If the user specified the name property
1274 * to display, then it will be later in the list in any case.
1276 if (pl
!= cbp
->cb_proplist
&&
1277 pl
->pl_width
> cbp
->cb_colwidths
[GET_COL_VALUE
])
1278 cbp
->cb_colwidths
[GET_COL_VALUE
] = pl
->pl_width
;
1280 /* 'RECEIVED' column. */
1281 if (pl
!= cbp
->cb_proplist
&&
1282 pl
->pl_recvd_width
> cbp
->cb_colwidths
[GET_COL_RECVD
])
1283 cbp
->cb_colwidths
[GET_COL_RECVD
] = pl
->pl_recvd_width
;
1286 * 'NAME' and 'SOURCE' columns
1288 if (pl
->pl_prop
== (type
== ZFS_TYPE_POOL
? ZPOOL_PROP_NAME
:
1290 pl
->pl_width
> cbp
->cb_colwidths
[GET_COL_NAME
]) {
1291 cbp
->cb_colwidths
[GET_COL_NAME
] = pl
->pl_width
;
1292 cbp
->cb_colwidths
[GET_COL_SOURCE
] = pl
->pl_width
+
1293 strlen(dgettext(TEXT_DOMAIN
, "inherited from"));
1298 * Now go through and print the headers.
1300 for (i
= 0; i
< ZFS_GET_NCOLS
; i
++) {
1301 switch (cbp
->cb_columns
[i
]) {
1303 title
= dgettext(TEXT_DOMAIN
, "NAME");
1305 case GET_COL_PROPERTY
:
1306 title
= dgettext(TEXT_DOMAIN
, "PROPERTY");
1309 title
= dgettext(TEXT_DOMAIN
, "VALUE");
1312 title
= dgettext(TEXT_DOMAIN
, "RECEIVED");
1314 case GET_COL_SOURCE
:
1315 title
= dgettext(TEXT_DOMAIN
, "SOURCE");
1321 if (title
!= NULL
) {
1322 if (i
== (ZFS_GET_NCOLS
- 1) ||
1323 cbp
->cb_columns
[i
+ 1] == GET_COL_NONE
)
1324 (void) printf("%s", title
);
1326 (void) printf("%-*s ",
1327 cbp
->cb_colwidths
[cbp
->cb_columns
[i
]],
1331 (void) printf("\n");
1335 * Display a single line of output, according to the settings in the callback
1339 zprop_print_one_property(const char *name
, zprop_get_cbdata_t
*cbp
,
1340 const char *propname
, const char *value
, zprop_source_t sourcetype
,
1341 const char *source
, const char *recvd_value
)
1344 const char *str
= NULL
;
1348 * Ignore those source types that the user has chosen to ignore.
1350 if ((sourcetype
& cbp
->cb_sources
) == 0)
1354 zprop_print_headers(cbp
, cbp
->cb_type
);
1356 for (i
= 0; i
< ZFS_GET_NCOLS
; i
++) {
1357 switch (cbp
->cb_columns
[i
]) {
1362 case GET_COL_PROPERTY
:
1370 case GET_COL_SOURCE
:
1371 switch (sourcetype
) {
1372 case ZPROP_SRC_NONE
:
1376 case ZPROP_SRC_DEFAULT
:
1380 case ZPROP_SRC_LOCAL
:
1384 case ZPROP_SRC_TEMPORARY
:
1388 case ZPROP_SRC_INHERITED
:
1389 (void) snprintf(buf
, sizeof (buf
),
1390 "inherited from %s", source
);
1393 case ZPROP_SRC_RECEIVED
:
1399 assert(!"unhandled zprop_source_t");
1404 str
= (recvd_value
== NULL
? "-" : recvd_value
);
1411 if (i
== (ZFS_GET_NCOLS
- 1) ||
1412 cbp
->cb_columns
[i
+ 1] == GET_COL_NONE
)
1413 (void) printf("%s", str
);
1414 else if (cbp
->cb_scripted
)
1415 (void) printf("%s\t", str
);
1417 (void) printf("%-*s ",
1418 cbp
->cb_colwidths
[cbp
->cb_columns
[i
]],
1422 (void) printf("\n");
1426 * Given a numeric suffix, convert the value into a number of bits that the
1427 * resulting value must be shifted.
1430 str2shift(libzfs_handle_t
*hdl
, const char *buf
)
1432 const char *ends
= "BKMGTPEZ";
1437 for (i
= 0; i
< strlen(ends
); i
++) {
1438 if (toupper(buf
[0]) == ends
[i
])
1441 if (i
== strlen(ends
)) {
1443 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1444 "invalid numeric suffix '%s'"), buf
);
1449 * Allow 'G' = 'GB' = 'GiB', case-insensitively.
1450 * However, 'BB' and 'BiB' are disallowed.
1452 if (buf
[1] == '\0' ||
1453 (toupper(buf
[0]) != 'B' &&
1454 ((toupper(buf
[1]) == 'B' && buf
[2] == '\0') ||
1455 (toupper(buf
[1]) == 'I' && toupper(buf
[2]) == 'B' &&
1460 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1461 "invalid numeric suffix '%s'"), buf
);
1466 * Convert a string of the form '100G' into a real number. Used when setting
1467 * properties or creating a volume. 'buf' is used to place an extended error
1468 * message for the caller to use.
1471 zfs_nicestrtonum(libzfs_handle_t
*hdl
, const char *value
, uint64_t *num
)
1478 /* Check to see if this looks like a number. */
1479 if ((value
[0] < '0' || value
[0] > '9') && value
[0] != '.') {
1481 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1482 "bad numeric value '%s'"), value
);
1486 /* Rely on strtoull() to process the numeric portion. */
1488 *num
= strtoull(value
, &end
, 10);
1491 * Check for ERANGE, which indicates that the value is too large to fit
1492 * in a 64-bit value.
1494 if (errno
== ERANGE
) {
1496 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1497 "numeric value is too large"));
1502 * If we have a decimal value, then do the computation with floating
1503 * point arithmetic. Otherwise, use standard arithmetic.
1506 double fval
= strtod(value
, &end
);
1508 if ((shift
= str2shift(hdl
, end
)) == -1)
1511 fval
*= pow(2, shift
);
1513 if (fval
> UINT64_MAX
) {
1515 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1516 "numeric value is too large"));
1520 *num
= (uint64_t)fval
;
1522 if ((shift
= str2shift(hdl
, end
)) == -1)
1525 /* Check for overflow */
1526 if (shift
>= 64 || (*num
<< shift
) >> shift
!= *num
) {
1528 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1529 "numeric value is too large"));
1540 * Given a propname=value nvpair to set, parse any numeric properties
1541 * (index, boolean, etc) if they are specified as strings and add the
1542 * resulting nvpair to the returned nvlist.
1544 * At the DSL layer, all properties are either 64-bit numbers or strings.
1545 * We want the user to be able to ignore this fact and specify properties
1546 * as native values (numbers, for example) or as strings (to simplify
1547 * command line utilities). This also handles converting index types
1548 * (compression, checksum, etc) from strings to their on-disk index.
1551 zprop_parse_value(libzfs_handle_t
*hdl
, nvpair_t
*elem
, int prop
,
1552 zfs_type_t type
, nvlist_t
*ret
, char **svalp
, uint64_t *ivalp
,
1555 data_type_t datatype
= nvpair_type(elem
);
1556 zprop_type_t proptype
;
1557 const char *propname
;
1559 boolean_t isnone
= B_FALSE
;
1560 boolean_t isauto
= B_FALSE
;
1563 if (type
== ZFS_TYPE_POOL
) {
1564 proptype
= zpool_prop_get_type(prop
);
1565 propname
= zpool_prop_to_name(prop
);
1567 proptype
= zfs_prop_get_type(prop
);
1568 propname
= zfs_prop_to_name(prop
);
1572 * Convert any properties to the internal DSL value types.
1578 case PROP_TYPE_STRING
:
1579 if (datatype
!= DATA_TYPE_STRING
) {
1580 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1581 "'%s' must be a string"), nvpair_name(elem
));
1584 err
= nvpair_value_string(elem
, svalp
);
1586 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1587 "'%s' is invalid"), nvpair_name(elem
));
1590 if (strlen(*svalp
) >= ZFS_MAXPROPLEN
) {
1591 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1592 "'%s' is too long"), nvpair_name(elem
));
1597 case PROP_TYPE_NUMBER
:
1598 if (datatype
== DATA_TYPE_STRING
) {
1599 (void) nvpair_value_string(elem
, &value
);
1600 if (strcmp(value
, "none") == 0) {
1602 } else if (strcmp(value
, "auto") == 0) {
1604 } else if (zfs_nicestrtonum(hdl
, value
, ivalp
) != 0) {
1607 } else if (datatype
== DATA_TYPE_UINT64
) {
1608 (void) nvpair_value_uint64(elem
, ivalp
);
1610 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1611 "'%s' must be a number"), nvpair_name(elem
));
1616 * Quota special: force 'none' and don't allow 0.
1618 if ((type
& ZFS_TYPE_DATASET
) && *ivalp
== 0 && !isnone
&&
1619 (prop
== ZFS_PROP_QUOTA
|| prop
== ZFS_PROP_REFQUOTA
)) {
1620 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1621 "use 'none' to disable quota/refquota"));
1626 * Special handling for "*_limit=none". In this case it's not
1629 if ((type
& ZFS_TYPE_DATASET
) && isnone
&&
1630 (prop
== ZFS_PROP_FILESYSTEM_LIMIT
||
1631 prop
== ZFS_PROP_SNAPSHOT_LIMIT
)) {
1632 *ivalp
= UINT64_MAX
;
1636 * Special handling for setting 'refreservation' to 'auto'. Use
1637 * UINT64_MAX to tell the caller to use zfs_fix_auto_resv().
1638 * 'auto' is only allowed on volumes.
1642 case ZFS_PROP_REFRESERVATION
:
1643 if ((type
& ZFS_TYPE_VOLUME
) == 0) {
1644 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1645 "'%s=auto' only allowed on "
1646 "volumes"), nvpair_name(elem
));
1649 *ivalp
= UINT64_MAX
;
1652 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1653 "'auto' is invalid value for '%s'"),
1661 case PROP_TYPE_INDEX
:
1662 if (datatype
!= DATA_TYPE_STRING
) {
1663 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1664 "'%s' must be a string"), nvpair_name(elem
));
1668 (void) nvpair_value_string(elem
, &value
);
1670 if (zprop_string_to_index(prop
, value
, ivalp
, type
) != 0) {
1671 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1672 "'%s' must be one of '%s'"), propname
,
1673 zprop_values(prop
, type
));
1683 * Add the result to our return set of properties.
1685 if (*svalp
!= NULL
) {
1686 if (nvlist_add_string(ret
, propname
, *svalp
) != 0) {
1687 (void) no_memory(hdl
);
1691 if (nvlist_add_uint64(ret
, propname
, *ivalp
) != 0) {
1692 (void) no_memory(hdl
);
1699 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1704 addlist(libzfs_handle_t
*hdl
, char *propname
, zprop_list_t
**listp
,
1708 zprop_list_t
*entry
;
1710 prop
= zprop_name_to_prop(propname
, type
);
1712 if (prop
!= ZPROP_INVAL
&& !zprop_valid_for_type(prop
, type
, B_FALSE
))
1716 * When no property table entry can be found, return failure if
1717 * this is a pool property or if this isn't a user-defined
1720 if (prop
== ZPROP_INVAL
&& ((type
== ZFS_TYPE_POOL
&&
1721 !zpool_prop_feature(propname
) &&
1722 !zpool_prop_unsupported(propname
)) ||
1723 (type
== ZFS_TYPE_DATASET
&& !zfs_prop_user(propname
) &&
1724 !zfs_prop_userquota(propname
) && !zfs_prop_written(propname
)))) {
1725 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1726 "invalid property '%s'"), propname
);
1727 return (zfs_error(hdl
, EZFS_BADPROP
,
1728 dgettext(TEXT_DOMAIN
, "bad property list")));
1731 if ((entry
= zfs_alloc(hdl
, sizeof (zprop_list_t
))) == NULL
)
1734 entry
->pl_prop
= prop
;
1735 if (prop
== ZPROP_INVAL
) {
1736 if ((entry
->pl_user_prop
= zfs_strdup(hdl
, propname
)) ==
1741 entry
->pl_width
= strlen(propname
);
1743 entry
->pl_width
= zprop_width(prop
, &entry
->pl_fixed
,
1753 * Given a comma-separated list of properties, construct a property list
1754 * containing both user-defined and native properties. This function will
1755 * return a NULL list if 'all' is specified, which can later be expanded
1756 * by zprop_expand_list().
1759 zprop_get_list(libzfs_handle_t
*hdl
, char *props
, zprop_list_t
**listp
,
1765 * If 'all' is specified, return a NULL list.
1767 if (strcmp(props
, "all") == 0)
1771 * If no props were specified, return an error.
1773 if (props
[0] == '\0') {
1774 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1775 "no properties specified"));
1776 return (zfs_error(hdl
, EZFS_BADPROP
, dgettext(TEXT_DOMAIN
,
1777 "bad property list")));
1781 * It would be nice to use getsubopt() here, but the inclusion of column
1782 * aliases makes this more effort than it's worth.
1784 while (*props
!= '\0') {
1789 if ((p
= strchr(props
, ',')) == NULL
) {
1790 len
= strlen(props
);
1797 * Check for empty options.
1800 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1801 "empty property name"));
1802 return (zfs_error(hdl
, EZFS_BADPROP
,
1803 dgettext(TEXT_DOMAIN
, "bad property list")));
1807 * Check all regular property names.
1812 if (strcmp(props
, "space") == 0) {
1813 static char *spaceprops
[] = {
1814 "name", "avail", "used", "usedbysnapshots",
1815 "usedbydataset", "usedbyrefreservation",
1816 "usedbychildren", NULL
1820 for (i
= 0; spaceprops
[i
]; i
++) {
1821 if (addlist(hdl
, spaceprops
[i
], listp
, type
))
1823 listp
= &(*listp
)->pl_next
;
1826 if (addlist(hdl
, props
, listp
, type
))
1828 listp
= &(*listp
)->pl_next
;
1840 zprop_free_list(zprop_list_t
*pl
)
1844 while (pl
!= NULL
) {
1846 free(pl
->pl_user_prop
);
1852 typedef struct expand_data
{
1853 zprop_list_t
**last
;
1854 libzfs_handle_t
*hdl
;
1859 zprop_expand_list_cb(int prop
, void *cb
)
1861 zprop_list_t
*entry
;
1862 expand_data_t
*edp
= cb
;
1864 if ((entry
= zfs_alloc(edp
->hdl
, sizeof (zprop_list_t
))) == NULL
)
1865 return (ZPROP_INVAL
);
1867 entry
->pl_prop
= prop
;
1868 entry
->pl_width
= zprop_width(prop
, &entry
->pl_fixed
, edp
->type
);
1869 entry
->pl_all
= B_TRUE
;
1871 *(edp
->last
) = entry
;
1872 edp
->last
= &entry
->pl_next
;
1874 return (ZPROP_CONT
);
1878 zprop_expand_list(libzfs_handle_t
*hdl
, zprop_list_t
**plp
, zfs_type_t type
)
1880 zprop_list_t
*entry
;
1881 zprop_list_t
**last
;
1886 * If this is the very first time we've been called for an 'all'
1887 * specification, expand the list to include all native
1896 if (zprop_iter_common(zprop_expand_list_cb
, &exp
, B_FALSE
,
1897 B_FALSE
, type
) == ZPROP_INVAL
)
1901 * Add 'name' to the beginning of the list, which is handled
1904 if ((entry
= zfs_alloc(hdl
, sizeof (zprop_list_t
))) == NULL
)
1907 entry
->pl_prop
= (type
== ZFS_TYPE_POOL
) ? ZPOOL_PROP_NAME
:
1909 entry
->pl_width
= zprop_width(entry
->pl_prop
,
1910 &entry
->pl_fixed
, type
);
1911 entry
->pl_all
= B_TRUE
;
1912 entry
->pl_next
= *plp
;
1919 zprop_iter(zprop_func func
, void *cb
, boolean_t show_all
, boolean_t ordered
,
1922 return (zprop_iter_common(func
, cb
, show_all
, ordered
, type
));