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]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
26 * Internal utility routines for the ZFS library.
40 #include <sys/mnttab.h>
41 #include <sys/mntent.h>
42 #include <sys/types.h>
46 #include "libzfs_impl.h"
50 libzfs_errno(libzfs_handle_t
*hdl
)
52 return (hdl
->libzfs_error
);
56 libzfs_error_action(libzfs_handle_t
*hdl
)
58 return (hdl
->libzfs_action
);
62 libzfs_error_description(libzfs_handle_t
*hdl
)
64 if (hdl
->libzfs_desc
[0] != '\0')
65 return (hdl
->libzfs_desc
);
67 switch (hdl
->libzfs_error
) {
69 return (dgettext(TEXT_DOMAIN
, "out of memory"));
71 return (dgettext(TEXT_DOMAIN
, "invalid property value"));
72 case EZFS_PROPREADONLY
:
73 return (dgettext(TEXT_DOMAIN
, "read-only property"));
75 return (dgettext(TEXT_DOMAIN
, "property doesn't apply to "
76 "datasets of this type"));
77 case EZFS_PROPNONINHERIT
:
78 return (dgettext(TEXT_DOMAIN
, "property cannot be inherited"));
80 return (dgettext(TEXT_DOMAIN
, "invalid quota or reservation"));
82 return (dgettext(TEXT_DOMAIN
, "operation not applicable to "
83 "datasets of this type"));
85 return (dgettext(TEXT_DOMAIN
, "pool or dataset is busy"));
87 return (dgettext(TEXT_DOMAIN
, "pool or dataset exists"));
89 return (dgettext(TEXT_DOMAIN
, "no such pool or dataset"));
91 return (dgettext(TEXT_DOMAIN
, "invalid backup stream"));
93 return (dgettext(TEXT_DOMAIN
, "dataset is read-only"));
95 return (dgettext(TEXT_DOMAIN
, "volume size exceeds limit for "
97 case EZFS_INVALIDNAME
:
98 return (dgettext(TEXT_DOMAIN
, "invalid name"));
100 return (dgettext(TEXT_DOMAIN
, "unable to restore to "
103 return (dgettext(TEXT_DOMAIN
, "backup failed"));
105 return (dgettext(TEXT_DOMAIN
, "invalid target vdev"));
107 return (dgettext(TEXT_DOMAIN
, "no such device in pool"));
109 return (dgettext(TEXT_DOMAIN
, "invalid device"));
110 case EZFS_NOREPLICAS
:
111 return (dgettext(TEXT_DOMAIN
, "no valid replicas"));
112 case EZFS_RESILVERING
:
113 return (dgettext(TEXT_DOMAIN
, "currently resilvering"));
114 case EZFS_BADVERSION
:
115 return (dgettext(TEXT_DOMAIN
, "unsupported version"));
116 case EZFS_POOLUNAVAIL
:
117 return (dgettext(TEXT_DOMAIN
, "pool is unavailable"));
118 case EZFS_DEVOVERFLOW
:
119 return (dgettext(TEXT_DOMAIN
, "too many devices in one vdev"));
121 return (dgettext(TEXT_DOMAIN
, "must be an absolute path"));
122 case EZFS_CROSSTARGET
:
123 return (dgettext(TEXT_DOMAIN
, "operation crosses datasets or "
126 return (dgettext(TEXT_DOMAIN
, "dataset in use by local zone"));
127 case EZFS_MOUNTFAILED
:
128 return (dgettext(TEXT_DOMAIN
, "mount failed"));
129 case EZFS_UMOUNTFAILED
:
130 return (dgettext(TEXT_DOMAIN
, "umount failed"));
131 case EZFS_UNSHARENFSFAILED
:
132 return (dgettext(TEXT_DOMAIN
, "unshare(1M) failed"));
133 case EZFS_SHARENFSFAILED
:
134 return (dgettext(TEXT_DOMAIN
, "share(1M) failed"));
135 case EZFS_UNSHARESMBFAILED
:
136 return (dgettext(TEXT_DOMAIN
, "smb remove share failed"));
137 case EZFS_SHARESMBFAILED
:
138 return (dgettext(TEXT_DOMAIN
, "smb add share failed"));
140 return (dgettext(TEXT_DOMAIN
, "permission denied"));
142 return (dgettext(TEXT_DOMAIN
, "out of space"));
144 return (dgettext(TEXT_DOMAIN
, "bad address"));
146 return (dgettext(TEXT_DOMAIN
, "I/O error"));
148 return (dgettext(TEXT_DOMAIN
, "signal received"));
150 return (dgettext(TEXT_DOMAIN
, "device is reserved as a hot "
152 case EZFS_INVALCONFIG
:
153 return (dgettext(TEXT_DOMAIN
, "invalid vdev configuration"));
155 return (dgettext(TEXT_DOMAIN
, "recursive dataset dependency"));
157 return (dgettext(TEXT_DOMAIN
, "no history available"));
159 return (dgettext(TEXT_DOMAIN
, "failed to retrieve "
161 case EZFS_POOL_NOTSUP
:
162 return (dgettext(TEXT_DOMAIN
, "operation not supported "
163 "on this type of pool"));
164 case EZFS_POOL_INVALARG
:
165 return (dgettext(TEXT_DOMAIN
, "invalid argument for "
166 "this pool operation"));
167 case EZFS_NAMETOOLONG
:
168 return (dgettext(TEXT_DOMAIN
, "dataset name is too long"));
169 case EZFS_OPENFAILED
:
170 return (dgettext(TEXT_DOMAIN
, "open failed"));
172 return (dgettext(TEXT_DOMAIN
,
173 "disk capacity information could not be retrieved"));
174 case EZFS_LABELFAILED
:
175 return (dgettext(TEXT_DOMAIN
, "write of label failed"));
177 return (dgettext(TEXT_DOMAIN
, "invalid user/group"));
179 return (dgettext(TEXT_DOMAIN
, "invalid permission"));
180 case EZFS_BADPERMSET
:
181 return (dgettext(TEXT_DOMAIN
, "invalid permission set name"));
182 case EZFS_NODELEGATION
:
183 return (dgettext(TEXT_DOMAIN
, "delegated administration is "
184 "disabled on pool"));
186 return (dgettext(TEXT_DOMAIN
, "invalid or missing cache file"));
188 return (dgettext(TEXT_DOMAIN
, "device is in use as a cache"));
189 case EZFS_VDEVNOTSUP
:
190 return (dgettext(TEXT_DOMAIN
, "vdev specification is not "
193 return (dgettext(TEXT_DOMAIN
, "operation not supported "
195 case EZFS_ACTIVE_SPARE
:
196 return (dgettext(TEXT_DOMAIN
, "pool has active shared spare "
198 case EZFS_UNPLAYED_LOGS
:
199 return (dgettext(TEXT_DOMAIN
, "log device has unplayed intent "
201 case EZFS_REFTAG_RELE
:
202 return (dgettext(TEXT_DOMAIN
, "no such tag on this dataset"));
203 case EZFS_REFTAG_HOLD
:
204 return (dgettext(TEXT_DOMAIN
, "tag already exists on this "
206 case EZFS_TAGTOOLONG
:
207 return (dgettext(TEXT_DOMAIN
, "tag too long"));
208 case EZFS_PIPEFAILED
:
209 return (dgettext(TEXT_DOMAIN
, "pipe create failed"));
210 case EZFS_THREADCREATEFAILED
:
211 return (dgettext(TEXT_DOMAIN
, "thread create failed"));
212 case EZFS_POSTSPLIT_ONLINE
:
213 return (dgettext(TEXT_DOMAIN
, "disk was split from this pool "
216 return (dgettext(TEXT_DOMAIN
, "currently scrubbing; "
217 "use 'zpool scrub -s' to cancel current scrub"));
219 return (dgettext(TEXT_DOMAIN
, "there is no active scrub"));
221 return (dgettext(TEXT_DOMAIN
, "unable to generate diffs"));
223 return (dgettext(TEXT_DOMAIN
, "invalid diff data"));
224 case EZFS_POOLREADONLY
:
225 return (dgettext(TEXT_DOMAIN
, "pool is read-only"));
227 return (dgettext(TEXT_DOMAIN
, "unknown error"));
229 assert(hdl
->libzfs_error
== 0);
230 return (dgettext(TEXT_DOMAIN
, "no error"));
236 zfs_error_aux(libzfs_handle_t
*hdl
, const char *fmt
, ...)
242 (void) vsnprintf(hdl
->libzfs_desc
, sizeof (hdl
->libzfs_desc
),
244 hdl
->libzfs_desc_active
= 1;
250 zfs_verror(libzfs_handle_t
*hdl
, int error
, const char *fmt
, va_list ap
)
252 (void) vsnprintf(hdl
->libzfs_action
, sizeof (hdl
->libzfs_action
),
254 hdl
->libzfs_error
= error
;
256 if (hdl
->libzfs_desc_active
)
257 hdl
->libzfs_desc_active
= 0;
259 hdl
->libzfs_desc
[0] = '\0';
261 if (hdl
->libzfs_printerr
) {
262 if (error
== EZFS_UNKNOWN
) {
263 (void) fprintf(stderr
, dgettext(TEXT_DOMAIN
, "internal "
264 "error: %s\n"), libzfs_error_description(hdl
));
268 (void) fprintf(stderr
, "%s: %s\n", hdl
->libzfs_action
,
269 libzfs_error_description(hdl
));
270 if (error
== EZFS_NOMEM
)
276 zfs_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
278 return (zfs_error_fmt(hdl
, error
, "%s", msg
));
283 zfs_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
289 zfs_verror(hdl
, error
, fmt
, ap
);
297 zfs_common_error(libzfs_handle_t
*hdl
, int error
, const char *fmt
,
303 zfs_verror(hdl
, EZFS_PERM
, fmt
, ap
);
307 zfs_verror(hdl
, EZFS_NODELEGATION
, fmt
, ap
);
311 zfs_verror(hdl
, EZFS_IO
, fmt
, ap
);
315 zfs_verror(hdl
, EZFS_FAULT
, fmt
, ap
);
319 zfs_verror(hdl
, EZFS_INTR
, fmt
, ap
);
327 zfs_standard_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
329 return (zfs_standard_error_fmt(hdl
, error
, "%s", msg
));
334 zfs_standard_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
340 if (zfs_common_error(hdl
, error
, fmt
, ap
) != 0) {
348 zfs_verror(hdl
, EZFS_IO
, fmt
, ap
);
352 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
353 "dataset does not exist"));
354 zfs_verror(hdl
, EZFS_NOENT
, fmt
, ap
);
359 zfs_verror(hdl
, EZFS_NOSPC
, fmt
, ap
);
363 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
364 "dataset already exists"));
365 zfs_verror(hdl
, EZFS_EXISTS
, fmt
, ap
);
369 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
371 zfs_verror(hdl
, EZFS_BUSY
, fmt
, ap
);
374 zfs_verror(hdl
, EZFS_POOLREADONLY
, fmt
, ap
);
377 zfs_verror(hdl
, EZFS_NAMETOOLONG
, fmt
, ap
);
380 zfs_verror(hdl
, EZFS_BADVERSION
, fmt
, ap
);
383 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
384 "pool I/O is currently suspended"));
385 zfs_verror(hdl
, EZFS_POOLUNAVAIL
, fmt
, ap
);
388 zfs_error_aux(hdl
, strerror(error
));
389 zfs_verror(hdl
, EZFS_UNKNOWN
, fmt
, ap
);
398 zpool_standard_error(libzfs_handle_t
*hdl
, int error
, const char *msg
)
400 return (zpool_standard_error_fmt(hdl
, error
, "%s", msg
));
405 zpool_standard_error_fmt(libzfs_handle_t
*hdl
, int error
, const char *fmt
, ...)
411 if (zfs_common_error(hdl
, error
, fmt
, ap
) != 0) {
418 zfs_verror(hdl
, EZFS_NODEVICE
, fmt
, ap
);
423 dgettext(TEXT_DOMAIN
, "no such pool or dataset"));
424 zfs_verror(hdl
, EZFS_NOENT
, fmt
, ap
);
428 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
429 "pool already exists"));
430 zfs_verror(hdl
, EZFS_EXISTS
, fmt
, ap
);
434 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
, "pool is busy"));
435 zfs_verror(hdl
, EZFS_BUSY
, fmt
, ap
);
439 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
440 "one or more devices is currently unavailable"));
441 zfs_verror(hdl
, EZFS_BADDEV
, fmt
, ap
);
445 zfs_verror(hdl
, EZFS_DEVOVERFLOW
, fmt
, ap
);
449 zfs_verror(hdl
, EZFS_POOL_NOTSUP
, fmt
, ap
);
453 zfs_verror(hdl
, EZFS_POOL_INVALARG
, fmt
, ap
);
458 zfs_verror(hdl
, EZFS_NOSPC
, fmt
, ap
);
462 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
463 "pool I/O is currently suspended"));
464 zfs_verror(hdl
, EZFS_POOLUNAVAIL
, fmt
, ap
);
468 zfs_verror(hdl
, EZFS_POOLREADONLY
, fmt
, ap
);
472 zfs_error_aux(hdl
, strerror(error
));
473 zfs_verror(hdl
, EZFS_UNKNOWN
, fmt
, ap
);
481 * Display an out of memory error message and abort the current program.
484 no_memory(libzfs_handle_t
*hdl
)
486 return (zfs_error(hdl
, EZFS_NOMEM
, "internal error"));
490 * A safe form of malloc() which will die if the allocation fails.
493 zfs_alloc(libzfs_handle_t
*hdl
, size_t size
)
497 if ((data
= calloc(1, size
)) == NULL
)
498 (void) no_memory(hdl
);
504 * A safe form of asprintf() which will die if the allocation fails.
508 zfs_asprintf(libzfs_handle_t
*hdl
, const char *fmt
, ...)
516 err
= vasprintf(&ret
, fmt
, ap
);
521 (void) no_memory(hdl
);
527 * A safe form of realloc(), which also zeroes newly allocated space.
530 zfs_realloc(libzfs_handle_t
*hdl
, void *ptr
, size_t oldsize
, size_t newsize
)
534 if ((ret
= realloc(ptr
, newsize
)) == NULL
) {
535 (void) no_memory(hdl
);
539 bzero((char *)ret
+ oldsize
, (newsize
- oldsize
));
544 * A safe form of strdup() which will die if the allocation fails.
547 zfs_strdup(libzfs_handle_t
*hdl
, const char *str
)
551 if ((ret
= strdup(str
)) == NULL
)
552 (void) no_memory(hdl
);
558 * Convert a number to an appropriately human-readable output.
561 zfs_nicenum(uint64_t num
, char *buf
, size_t buflen
)
572 u
= " KMGTPE"[index
];
575 (void) snprintf(buf
, buflen
, "%llu", (u_longlong_t
) n
);
576 } else if ((num
& ((1ULL << 10 * index
) - 1)) == 0) {
578 * If this is an even multiple of the base, always display
579 * without any decimal precision.
581 (void) snprintf(buf
, buflen
, "%llu%c", (u_longlong_t
) n
, u
);
584 * We want to choose a precision that reflects the best choice
585 * for fitting in 5 characters. This can get rather tricky when
586 * we have numbers that are very close to an order of magnitude.
587 * For example, when displaying 10239 (which is really 9.999K),
588 * we want only a single place of precision for 10.0K. We could
589 * develop some complex heuristics for this, but it's much
590 * easier just to try each combination in turn.
593 for (i
= 2; i
>= 0; i
--) {
594 if (snprintf(buf
, buflen
, "%.*f%c", i
,
595 (double)num
/ (1ULL << 10 * index
), u
) <= 5)
602 libzfs_print_on_error(libzfs_handle_t
*hdl
, boolean_t printerr
)
604 hdl
->libzfs_printerr
= printerr
;
610 libzfs_handle_t
*hdl
;
612 if ((hdl
= calloc(1, sizeof (libzfs_handle_t
))) == NULL
) {
616 if ((hdl
->libzfs_fd
= open(ZFS_DEV
, O_RDWR
)) < 0) {
617 (void) fprintf(stderr
, gettext("Unable to open %s: %s.\n"),
618 ZFS_DEV
, strerror(errno
));
620 (void) fprintf(stderr
,
621 gettext("Verify the ZFS module stack is "
622 "loaded by running '/sbin/modprobe zfs'.\n"));
628 #ifdef HAVE_SETMNTENT
629 if ((hdl
->libzfs_mnttab
= setmntent(MNTTAB
, "r")) == NULL
) {
631 if ((hdl
->libzfs_mnttab
= fopen(MNTTAB
, "r")) == NULL
) {
633 (void) close(hdl
->libzfs_fd
);
638 hdl
->libzfs_sharetab
= fopen("/etc/dfs/sharetab", "r");
642 libzfs_mnttab_init(hdl
);
648 libzfs_fini(libzfs_handle_t
*hdl
)
650 (void) close(hdl
->libzfs_fd
);
651 if (hdl
->libzfs_mnttab
)
652 #ifdef HAVE_SETMNTENT
653 (void) endmntent(hdl
->libzfs_mnttab
);
655 (void) fclose(hdl
->libzfs_mnttab
);
657 if (hdl
->libzfs_sharetab
)
658 (void) fclose(hdl
->libzfs_sharetab
);
660 zfs_uninit_libshare(hdl
);
662 if (hdl
->libzfs_log_str
)
663 (void) free(hdl
->libzfs_log_str
);
664 zpool_free_handles(hdl
);
665 libzfs_fru_clear(hdl
, B_TRUE
);
666 namespace_clear(hdl
);
667 libzfs_mnttab_fini(hdl
);
672 zpool_get_handle(zpool_handle_t
*zhp
)
674 return (zhp
->zpool_hdl
);
678 zfs_get_handle(zfs_handle_t
*zhp
)
680 return (zhp
->zfs_hdl
);
684 zfs_get_pool_handle(const zfs_handle_t
*zhp
)
686 return (zhp
->zpool_hdl
);
690 * Given a name, determine whether or not it's a valid path
691 * (starts with '/' or "./"). If so, walk the mnttab trying
692 * to match the device number. If not, treat the path as an
696 zfs_path_to_zhandle(libzfs_handle_t
*hdl
, char *path
, zfs_type_t argtype
)
698 struct stat64 statbuf
;
699 struct extmnttab entry
;
702 if (path
[0] != '/' && strncmp(path
, "./", strlen("./")) != 0) {
704 * It's not a valid path, assume it's a name of type 'argtype'.
706 return (zfs_open(hdl
, path
, argtype
));
709 if (stat64(path
, &statbuf
) != 0) {
710 (void) fprintf(stderr
, "%s: %s\n", path
, strerror(errno
));
714 rewind(hdl
->libzfs_mnttab
);
715 while ((ret
= getextmntent(hdl
->libzfs_mnttab
, &entry
, 0)) == 0) {
716 if (makedevice(entry
.mnt_major
, entry
.mnt_minor
) ==
725 if (strcmp(entry
.mnt_fstype
, MNTTYPE_ZFS
) != 0) {
726 (void) fprintf(stderr
, gettext("'%s': not a ZFS filesystem\n"),
731 return (zfs_open(hdl
, entry
.mnt_special
, ZFS_TYPE_FILESYSTEM
));
735 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
739 zcmd_alloc_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, size_t len
)
743 zc
->zc_nvlist_dst_size
= len
;
744 if ((zc
->zc_nvlist_dst
= (uint64_t)(uintptr_t)
745 zfs_alloc(hdl
, zc
->zc_nvlist_dst_size
)) == 0)
752 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
753 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
754 * filled in by the kernel to indicate the actual required size.
757 zcmd_expand_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
)
759 free((void *)(uintptr_t)zc
->zc_nvlist_dst
);
760 if ((zc
->zc_nvlist_dst
= (uint64_t)(uintptr_t)
761 zfs_alloc(hdl
, zc
->zc_nvlist_dst_size
)) == 0)
768 * Called to free the src and dst nvlists stored in the command structure.
771 zcmd_free_nvlists(zfs_cmd_t
*zc
)
773 free((void *)(uintptr_t)zc
->zc_nvlist_conf
);
774 free((void *)(uintptr_t)zc
->zc_nvlist_src
);
775 free((void *)(uintptr_t)zc
->zc_nvlist_dst
);
779 zcmd_write_nvlist_com(libzfs_handle_t
*hdl
, uint64_t *outnv
, uint64_t *outlen
,
785 verify(nvlist_size(nvl
, &len
, NV_ENCODE_NATIVE
) == 0);
787 if ((packed
= zfs_alloc(hdl
, len
)) == NULL
)
790 verify(nvlist_pack(nvl
, &packed
, &len
, NV_ENCODE_NATIVE
, 0) == 0);
792 *outnv
= (uint64_t)(uintptr_t)packed
;
799 zcmd_write_conf_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
*nvl
)
801 return (zcmd_write_nvlist_com(hdl
, &zc
->zc_nvlist_conf
,
802 &zc
->zc_nvlist_conf_size
, nvl
));
806 zcmd_write_src_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
*nvl
)
808 return (zcmd_write_nvlist_com(hdl
, &zc
->zc_nvlist_src
,
809 &zc
->zc_nvlist_src_size
, nvl
));
813 * Unpacks an nvlist from the ZFS ioctl command structure.
816 zcmd_read_dst_nvlist(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
, nvlist_t
**nvlp
)
818 if (nvlist_unpack((void *)(uintptr_t)zc
->zc_nvlist_dst
,
819 zc
->zc_nvlist_dst_size
, nvlp
, 0) != 0)
820 return (no_memory(hdl
));
826 zfs_ioctl(libzfs_handle_t
*hdl
, int request
, zfs_cmd_t
*zc
)
830 zc
->zc_history
= (uint64_t)(uintptr_t)hdl
->libzfs_log_str
;
831 error
= ioctl(hdl
->libzfs_fd
, request
, zc
);
832 if (hdl
->libzfs_log_str
) {
833 free(hdl
->libzfs_log_str
);
834 hdl
->libzfs_log_str
= NULL
;
842 * ================================================================
843 * API shared by zfs and zpool property management
844 * ================================================================
848 zprop_print_headers(zprop_get_cbdata_t
*cbp
, zfs_type_t type
)
850 zprop_list_t
*pl
= cbp
->cb_proplist
;
855 cbp
->cb_first
= B_FALSE
;
856 if (cbp
->cb_scripted
)
860 * Start with the length of the column headers.
862 cbp
->cb_colwidths
[GET_COL_NAME
] = strlen(dgettext(TEXT_DOMAIN
, "NAME"));
863 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = strlen(dgettext(TEXT_DOMAIN
,
865 cbp
->cb_colwidths
[GET_COL_VALUE
] = strlen(dgettext(TEXT_DOMAIN
,
867 cbp
->cb_colwidths
[GET_COL_RECVD
] = strlen(dgettext(TEXT_DOMAIN
,
869 cbp
->cb_colwidths
[GET_COL_SOURCE
] = strlen(dgettext(TEXT_DOMAIN
,
872 /* first property is always NAME */
873 assert(cbp
->cb_proplist
->pl_prop
==
874 ((type
== ZFS_TYPE_POOL
) ? ZPOOL_PROP_NAME
: ZFS_PROP_NAME
));
877 * Go through and calculate the widths for each column. For the
878 * 'source' column, we kludge it up by taking the worst-case scenario of
879 * inheriting from the longest name. This is acceptable because in the
880 * majority of cases 'SOURCE' is the last column displayed, and we don't
881 * use the width anyway. Note that the 'VALUE' column can be oversized,
882 * if the name of the property is much longer than any values we find.
884 for (pl
= cbp
->cb_proplist
; pl
!= NULL
; pl
= pl
->pl_next
) {
888 if (pl
->pl_prop
!= ZPROP_INVAL
) {
889 const char *propname
= (type
== ZFS_TYPE_POOL
) ?
890 zpool_prop_to_name(pl
->pl_prop
) :
891 zfs_prop_to_name(pl
->pl_prop
);
893 len
= strlen(propname
);
894 if (len
> cbp
->cb_colwidths
[GET_COL_PROPERTY
])
895 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = len
;
897 len
= strlen(pl
->pl_user_prop
);
898 if (len
> cbp
->cb_colwidths
[GET_COL_PROPERTY
])
899 cbp
->cb_colwidths
[GET_COL_PROPERTY
] = len
;
903 * 'VALUE' column. The first property is always the 'name'
904 * property that was tacked on either by /sbin/zfs's
905 * zfs_do_get() or when calling zprop_expand_list(), so we
906 * ignore its width. If the user specified the name property
907 * to display, then it will be later in the list in any case.
909 if (pl
!= cbp
->cb_proplist
&&
910 pl
->pl_width
> cbp
->cb_colwidths
[GET_COL_VALUE
])
911 cbp
->cb_colwidths
[GET_COL_VALUE
] = pl
->pl_width
;
913 /* 'RECEIVED' column. */
914 if (pl
!= cbp
->cb_proplist
&&
915 pl
->pl_recvd_width
> cbp
->cb_colwidths
[GET_COL_RECVD
])
916 cbp
->cb_colwidths
[GET_COL_RECVD
] = pl
->pl_recvd_width
;
919 * 'NAME' and 'SOURCE' columns
921 if (pl
->pl_prop
== (type
== ZFS_TYPE_POOL
? ZPOOL_PROP_NAME
:
923 pl
->pl_width
> cbp
->cb_colwidths
[GET_COL_NAME
]) {
924 cbp
->cb_colwidths
[GET_COL_NAME
] = pl
->pl_width
;
925 cbp
->cb_colwidths
[GET_COL_SOURCE
] = pl
->pl_width
+
926 strlen(dgettext(TEXT_DOMAIN
, "inherited from"));
931 * Now go through and print the headers.
933 for (i
= 0; i
< ZFS_GET_NCOLS
; i
++) {
934 switch (cbp
->cb_columns
[i
]) {
936 title
= dgettext(TEXT_DOMAIN
, "NAME");
938 case GET_COL_PROPERTY
:
939 title
= dgettext(TEXT_DOMAIN
, "PROPERTY");
942 title
= dgettext(TEXT_DOMAIN
, "VALUE");
945 title
= dgettext(TEXT_DOMAIN
, "RECEIVED");
948 title
= dgettext(TEXT_DOMAIN
, "SOURCE");
955 if (i
== (ZFS_GET_NCOLS
- 1) ||
956 cbp
->cb_columns
[i
+ 1] == GET_COL_NONE
)
957 (void) printf("%s", title
);
959 (void) printf("%-*s ",
960 cbp
->cb_colwidths
[cbp
->cb_columns
[i
]],
968 * Display a single line of output, according to the settings in the callback
972 zprop_print_one_property(const char *name
, zprop_get_cbdata_t
*cbp
,
973 const char *propname
, const char *value
, zprop_source_t sourcetype
,
974 const char *source
, const char *recvd_value
)
977 const char *str
= NULL
;
981 * Ignore those source types that the user has chosen to ignore.
983 if ((sourcetype
& cbp
->cb_sources
) == 0)
987 zprop_print_headers(cbp
, cbp
->cb_type
);
989 for (i
= 0; i
< ZFS_GET_NCOLS
; i
++) {
990 switch (cbp
->cb_columns
[i
]) {
995 case GET_COL_PROPERTY
:
1003 case GET_COL_SOURCE
:
1004 switch (sourcetype
) {
1005 case ZPROP_SRC_NONE
:
1009 case ZPROP_SRC_DEFAULT
:
1013 case ZPROP_SRC_LOCAL
:
1017 case ZPROP_SRC_TEMPORARY
:
1021 case ZPROP_SRC_INHERITED
:
1022 (void) snprintf(buf
, sizeof (buf
),
1023 "inherited from %s", source
);
1026 case ZPROP_SRC_RECEIVED
:
1033 str
= (recvd_value
== NULL
? "-" : recvd_value
);
1040 if (cbp
->cb_columns
[i
+ 1] == GET_COL_NONE
)
1041 (void) printf("%s", str
);
1042 else if (cbp
->cb_scripted
)
1043 (void) printf("%s\t", str
);
1045 (void) printf("%-*s ",
1046 cbp
->cb_colwidths
[cbp
->cb_columns
[i
]],
1050 (void) printf("\n");
1054 * Given a numeric suffix, convert the value into a number of bits that the
1055 * resulting value must be shifted.
1058 str2shift(libzfs_handle_t
*hdl
, const char *buf
)
1060 const char *ends
= "BKMGTPEZ";
1065 for (i
= 0; i
< strlen(ends
); i
++) {
1066 if (toupper(buf
[0]) == ends
[i
])
1069 if (i
== strlen(ends
)) {
1070 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1071 "invalid numeric suffix '%s'"), buf
);
1076 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1077 * allow 'BB' - that's just weird.
1079 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0' &&
1080 toupper(buf
[0]) != 'B'))
1083 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1084 "invalid numeric suffix '%s'"), buf
);
1089 * Convert a string of the form '100G' into a real number. Used when setting
1090 * properties or creating a volume. 'buf' is used to place an extended error
1091 * message for the caller to use.
1094 zfs_nicestrtonum(libzfs_handle_t
*hdl
, const char *value
, uint64_t *num
)
1101 /* Check to see if this looks like a number. */
1102 if ((value
[0] < '0' || value
[0] > '9') && value
[0] != '.') {
1104 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1105 "bad numeric value '%s'"), value
);
1109 /* Rely on strtoull() to process the numeric portion. */
1111 *num
= strtoull(value
, &end
, 10);
1114 * Check for ERANGE, which indicates that the value is too large to fit
1115 * in a 64-bit value.
1117 if (errno
== ERANGE
) {
1119 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1120 "numeric value is too large"));
1125 * If we have a decimal value, then do the computation with floating
1126 * point arithmetic. Otherwise, use standard arithmetic.
1129 double fval
= strtod(value
, &end
);
1131 if ((shift
= str2shift(hdl
, end
)) == -1)
1134 fval
*= pow(2, shift
);
1136 if (fval
> UINT64_MAX
) {
1138 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1139 "numeric value is too large"));
1143 *num
= (uint64_t)fval
;
1145 if ((shift
= str2shift(hdl
, end
)) == -1)
1148 /* Check for overflow */
1149 if (shift
>= 64 || (*num
<< shift
) >> shift
!= *num
) {
1151 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1152 "numeric value is too large"));
1163 * Given a propname=value nvpair to set, parse any numeric properties
1164 * (index, boolean, etc) if they are specified as strings and add the
1165 * resulting nvpair to the returned nvlist.
1167 * At the DSL layer, all properties are either 64-bit numbers or strings.
1168 * We want the user to be able to ignore this fact and specify properties
1169 * as native values (numbers, for example) or as strings (to simplify
1170 * command line utilities). This also handles converting index types
1171 * (compression, checksum, etc) from strings to their on-disk index.
1174 zprop_parse_value(libzfs_handle_t
*hdl
, nvpair_t
*elem
, int prop
,
1175 zfs_type_t type
, nvlist_t
*ret
, char **svalp
, uint64_t *ivalp
,
1178 data_type_t datatype
= nvpair_type(elem
);
1179 zprop_type_t proptype
;
1180 const char *propname
;
1182 boolean_t isnone
= B_FALSE
;
1184 if (type
== ZFS_TYPE_POOL
) {
1185 proptype
= zpool_prop_get_type(prop
);
1186 propname
= zpool_prop_to_name(prop
);
1188 proptype
= zfs_prop_get_type(prop
);
1189 propname
= zfs_prop_to_name(prop
);
1193 * Convert any properties to the internal DSL value types.
1199 case PROP_TYPE_STRING
:
1200 if (datatype
!= DATA_TYPE_STRING
) {
1201 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1202 "'%s' must be a string"), nvpair_name(elem
));
1205 (void) nvpair_value_string(elem
, svalp
);
1206 if (strlen(*svalp
) >= ZFS_MAXPROPLEN
) {
1207 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1208 "'%s' is too long"), nvpair_name(elem
));
1213 case PROP_TYPE_NUMBER
:
1214 if (datatype
== DATA_TYPE_STRING
) {
1215 (void) nvpair_value_string(elem
, &value
);
1216 if (strcmp(value
, "none") == 0) {
1218 } else if (zfs_nicestrtonum(hdl
, value
, ivalp
)
1222 } else if (datatype
== DATA_TYPE_UINT64
) {
1223 (void) nvpair_value_uint64(elem
, ivalp
);
1225 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1226 "'%s' must be a number"), nvpair_name(elem
));
1231 * Quota special: force 'none' and don't allow 0.
1233 if ((type
& ZFS_TYPE_DATASET
) && *ivalp
== 0 && !isnone
&&
1234 (prop
== ZFS_PROP_QUOTA
|| prop
== ZFS_PROP_REFQUOTA
)) {
1235 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1236 "use 'none' to disable quota/refquota"));
1241 case PROP_TYPE_INDEX
:
1242 if (datatype
!= DATA_TYPE_STRING
) {
1243 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1244 "'%s' must be a string"), nvpair_name(elem
));
1248 (void) nvpair_value_string(elem
, &value
);
1250 if (zprop_string_to_index(prop
, value
, ivalp
, type
) != 0) {
1251 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1252 "'%s' must be one of '%s'"), propname
,
1253 zprop_values(prop
, type
));
1263 * Add the result to our return set of properties.
1265 if (*svalp
!= NULL
) {
1266 if (nvlist_add_string(ret
, propname
, *svalp
) != 0) {
1267 (void) no_memory(hdl
);
1271 if (nvlist_add_uint64(ret
, propname
, *ivalp
) != 0) {
1272 (void) no_memory(hdl
);
1279 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1284 addlist(libzfs_handle_t
*hdl
, char *propname
, zprop_list_t
**listp
,
1288 zprop_list_t
*entry
;
1290 prop
= zprop_name_to_prop(propname
, type
);
1292 if (prop
!= ZPROP_INVAL
&& !zprop_valid_for_type(prop
, type
))
1296 * When no property table entry can be found, return failure if
1297 * this is a pool property or if this isn't a user-defined
1300 if (prop
== ZPROP_INVAL
&& (type
== ZFS_TYPE_POOL
||
1301 (!zfs_prop_user(propname
) && !zfs_prop_userquota(propname
)))) {
1302 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1303 "invalid property '%s'"), propname
);
1304 return (zfs_error(hdl
, EZFS_BADPROP
,
1305 dgettext(TEXT_DOMAIN
, "bad property list")));
1308 if ((entry
= zfs_alloc(hdl
, sizeof (zprop_list_t
))) == NULL
)
1311 entry
->pl_prop
= prop
;
1312 if (prop
== ZPROP_INVAL
) {
1313 if ((entry
->pl_user_prop
= zfs_strdup(hdl
, propname
)) == NULL
) {
1317 entry
->pl_width
= strlen(propname
);
1319 entry
->pl_width
= zprop_width(prop
, &entry
->pl_fixed
,
1329 * Given a comma-separated list of properties, construct a property list
1330 * containing both user-defined and native properties. This function will
1331 * return a NULL list if 'all' is specified, which can later be expanded
1332 * by zprop_expand_list().
1335 zprop_get_list(libzfs_handle_t
*hdl
, char *props
, zprop_list_t
**listp
,
1341 * If 'all' is specified, return a NULL list.
1343 if (strcmp(props
, "all") == 0)
1347 * If no props were specified, return an error.
1349 if (props
[0] == '\0') {
1350 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1351 "no properties specified"));
1352 return (zfs_error(hdl
, EZFS_BADPROP
, dgettext(TEXT_DOMAIN
,
1353 "bad property list")));
1357 * It would be nice to use getsubopt() here, but the inclusion of column
1358 * aliases makes this more effort than it's worth.
1360 while (*props
!= '\0') {
1365 if ((p
= strchr(props
, ',')) == NULL
) {
1366 len
= strlen(props
);
1373 * Check for empty options.
1376 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1377 "empty property name"));
1378 return (zfs_error(hdl
, EZFS_BADPROP
,
1379 dgettext(TEXT_DOMAIN
, "bad property list")));
1383 * Check all regular property names.
1388 if (strcmp(props
, "space") == 0) {
1389 static char *spaceprops
[] = {
1390 "name", "avail", "used", "usedbysnapshots",
1391 "usedbydataset", "usedbyrefreservation",
1392 "usedbychildren", NULL
1396 for (i
= 0; spaceprops
[i
]; i
++) {
1397 if (addlist(hdl
, spaceprops
[i
], listp
, type
))
1399 listp
= &(*listp
)->pl_next
;
1402 if (addlist(hdl
, props
, listp
, type
))
1404 listp
= &(*listp
)->pl_next
;
1416 zprop_free_list(zprop_list_t
*pl
)
1420 while (pl
!= NULL
) {
1422 free(pl
->pl_user_prop
);
1428 typedef struct expand_data
{
1429 zprop_list_t
**last
;
1430 libzfs_handle_t
*hdl
;
1435 zprop_expand_list_cb(int prop
, void *cb
)
1437 zprop_list_t
*entry
;
1438 expand_data_t
*edp
= cb
;
1440 if ((entry
= zfs_alloc(edp
->hdl
, sizeof (zprop_list_t
))) == NULL
)
1441 return (ZPROP_INVAL
);
1443 entry
->pl_prop
= prop
;
1444 entry
->pl_width
= zprop_width(prop
, &entry
->pl_fixed
, edp
->type
);
1445 entry
->pl_all
= B_TRUE
;
1447 *(edp
->last
) = entry
;
1448 edp
->last
= &entry
->pl_next
;
1450 return (ZPROP_CONT
);
1454 zprop_expand_list(libzfs_handle_t
*hdl
, zprop_list_t
**plp
, zfs_type_t type
)
1456 zprop_list_t
*entry
;
1457 zprop_list_t
**last
;
1462 * If this is the very first time we've been called for an 'all'
1463 * specification, expand the list to include all native
1472 if (zprop_iter_common(zprop_expand_list_cb
, &exp
, B_FALSE
,
1473 B_FALSE
, type
) == ZPROP_INVAL
)
1477 * Add 'name' to the beginning of the list, which is handled
1480 if ((entry
= zfs_alloc(hdl
, sizeof (zprop_list_t
))) == NULL
)
1483 entry
->pl_prop
= (type
== ZFS_TYPE_POOL
) ? ZPOOL_PROP_NAME
:
1485 entry
->pl_width
= zprop_width(entry
->pl_prop
,
1486 &entry
->pl_fixed
, type
);
1487 entry
->pl_all
= B_TRUE
;
1488 entry
->pl_next
= *plp
;
1495 zprop_iter(zprop_func func
, void *cb
, boolean_t show_all
, boolean_t ordered
,
1498 return (zprop_iter_common(func
, cb
, show_all
, ordered
, type
));