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.
25 * Copyright (c) 2011, 2017 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.
34 #include <sys/param.h>
35 #include <sys/linker.h>
36 #include <sys/module.h>
49 #include <sys/mnttab.h>
50 #include <sys/mntent.h>
51 #include <sys/types.h>
52 #include <libcmdutils.h>
55 #include <libzfs_core.h>
57 #include "libzfs_impl.h"
59 #include "zfeature_common.h"
63 libzfs_errno(libzfs_handle_t *hdl)
65 return (hdl->libzfs_error);
69 libzfs_error_action(libzfs_handle_t *hdl)
71 return (hdl->libzfs_action);
75 libzfs_error_description(libzfs_handle_t *hdl)
77 if (hdl->libzfs_desc[0] != '\0')
78 return (hdl->libzfs_desc);
80 switch (hdl->libzfs_error) {
82 return (dgettext(TEXT_DOMAIN, "out of memory"));
84 return (dgettext(TEXT_DOMAIN, "invalid property value"));
85 case EZFS_PROPREADONLY:
86 return (dgettext(TEXT_DOMAIN, "read-only property"));
88 return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
89 "datasets of this type"));
90 case EZFS_PROPNONINHERIT:
91 return (dgettext(TEXT_DOMAIN, "property cannot be inherited"));
93 return (dgettext(TEXT_DOMAIN, "invalid quota or reservation"));
95 return (dgettext(TEXT_DOMAIN, "operation not applicable to "
96 "datasets of this type"));
98 return (dgettext(TEXT_DOMAIN, "pool or dataset is busy"));
100 return (dgettext(TEXT_DOMAIN, "pool or dataset exists"));
102 return (dgettext(TEXT_DOMAIN, "no such pool or dataset"));
104 return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
105 case EZFS_DSREADONLY:
106 return (dgettext(TEXT_DOMAIN, "dataset is read-only"));
108 return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
110 case EZFS_INVALIDNAME:
111 return (dgettext(TEXT_DOMAIN, "invalid name"));
112 case EZFS_BADRESTORE:
113 return (dgettext(TEXT_DOMAIN, "unable to restore to "
116 return (dgettext(TEXT_DOMAIN, "backup failed"));
118 return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
120 return (dgettext(TEXT_DOMAIN, "no such device in pool"));
122 return (dgettext(TEXT_DOMAIN, "invalid device"));
123 case EZFS_NOREPLICAS:
124 return (dgettext(TEXT_DOMAIN, "no valid replicas"));
125 case EZFS_RESILVERING:
126 return (dgettext(TEXT_DOMAIN, "currently resilvering"));
127 case EZFS_BADVERSION:
128 return (dgettext(TEXT_DOMAIN, "unsupported version or "
130 case EZFS_POOLUNAVAIL:
131 return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
132 case EZFS_DEVOVERFLOW:
133 return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
135 return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
136 case EZFS_CROSSTARGET:
137 return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
140 return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
141 case EZFS_MOUNTFAILED:
142 return (dgettext(TEXT_DOMAIN, "mount failed"));
143 case EZFS_UMOUNTFAILED:
144 return (dgettext(TEXT_DOMAIN, "umount failed"));
145 case EZFS_UNSHARENFSFAILED:
146 return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
147 case EZFS_SHARENFSFAILED:
148 return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
149 case EZFS_UNSHARESMBFAILED:
150 return (dgettext(TEXT_DOMAIN, "smb remove share failed"));
151 case EZFS_SHARESMBFAILED:
152 return (dgettext(TEXT_DOMAIN, "smb add share failed"));
154 return (dgettext(TEXT_DOMAIN, "permission denied"));
156 return (dgettext(TEXT_DOMAIN, "out of space"));
158 return (dgettext(TEXT_DOMAIN, "bad address"));
160 return (dgettext(TEXT_DOMAIN, "I/O error"));
162 return (dgettext(TEXT_DOMAIN, "signal received"));
164 return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
166 case EZFS_INVALCONFIG:
167 return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
169 return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
171 return (dgettext(TEXT_DOMAIN, "no history available"));
173 return (dgettext(TEXT_DOMAIN, "failed to retrieve "
175 case EZFS_POOL_NOTSUP:
176 return (dgettext(TEXT_DOMAIN, "operation not supported "
177 "on this type of pool"));
178 case EZFS_POOL_INVALARG:
179 return (dgettext(TEXT_DOMAIN, "invalid argument for "
180 "this pool operation"));
181 case EZFS_NAMETOOLONG:
182 return (dgettext(TEXT_DOMAIN, "dataset name is too long"));
183 case EZFS_OPENFAILED:
184 return (dgettext(TEXT_DOMAIN, "open failed"));
186 return (dgettext(TEXT_DOMAIN,
187 "disk capacity information could not be retrieved"));
188 case EZFS_LABELFAILED:
189 return (dgettext(TEXT_DOMAIN, "write of label failed"));
191 return (dgettext(TEXT_DOMAIN, "invalid user/group"));
193 return (dgettext(TEXT_DOMAIN, "invalid permission"));
194 case EZFS_BADPERMSET:
195 return (dgettext(TEXT_DOMAIN, "invalid permission set name"));
196 case EZFS_NODELEGATION:
197 return (dgettext(TEXT_DOMAIN, "delegated administration is "
198 "disabled on pool"));
200 return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
202 return (dgettext(TEXT_DOMAIN, "device is in use as a cache"));
203 case EZFS_VDEVNOTSUP:
204 return (dgettext(TEXT_DOMAIN, "vdev specification is not "
207 return (dgettext(TEXT_DOMAIN, "operation not supported "
209 case EZFS_ACTIVE_SPARE:
210 return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
212 case EZFS_UNPLAYED_LOGS:
213 return (dgettext(TEXT_DOMAIN, "log device has unplayed intent "
215 case EZFS_REFTAG_RELE:
216 return (dgettext(TEXT_DOMAIN, "no such tag on this dataset"));
217 case EZFS_REFTAG_HOLD:
218 return (dgettext(TEXT_DOMAIN, "tag already exists on this "
220 case EZFS_TAGTOOLONG:
221 return (dgettext(TEXT_DOMAIN, "tag too long"));
222 case EZFS_PIPEFAILED:
223 return (dgettext(TEXT_DOMAIN, "pipe create failed"));
224 case EZFS_THREADCREATEFAILED:
225 return (dgettext(TEXT_DOMAIN, "thread create failed"));
226 case EZFS_POSTSPLIT_ONLINE:
227 return (dgettext(TEXT_DOMAIN, "disk was split from this pool "
229 case EZFS_SCRUB_PAUSED:
230 return (dgettext(TEXT_DOMAIN, "scrub is paused; "
231 "use 'zpool scrub' to resume"));
233 return (dgettext(TEXT_DOMAIN, "currently scrubbing; "
234 "use 'zpool scrub -s' to cancel current scrub"));
236 return (dgettext(TEXT_DOMAIN, "there is no active scrub"));
238 return (dgettext(TEXT_DOMAIN, "unable to generate diffs"));
240 return (dgettext(TEXT_DOMAIN, "invalid diff data"));
241 case EZFS_POOLREADONLY:
242 return (dgettext(TEXT_DOMAIN, "pool is read-only"));
243 case EZFS_NO_PENDING:
244 return (dgettext(TEXT_DOMAIN, "operation is not "
246 case EZFS_CHECKPOINT_EXISTS:
247 return (dgettext(TEXT_DOMAIN, "checkpoint exists"));
248 case EZFS_DISCARDING_CHECKPOINT:
249 return (dgettext(TEXT_DOMAIN, "currently discarding "
251 case EZFS_NO_CHECKPOINT:
252 return (dgettext(TEXT_DOMAIN, "checkpoint does not exist"));
253 case EZFS_DEVRM_IN_PROGRESS:
254 return (dgettext(TEXT_DOMAIN, "device removal in progress"));
255 case EZFS_VDEV_TOO_BIG:
256 return (dgettext(TEXT_DOMAIN, "device exceeds supported size"));
258 return (dgettext(TEXT_DOMAIN, "argument list too long"));
259 case EZFS_INITIALIZING:
260 return (dgettext(TEXT_DOMAIN, "currently initializing"));
261 case EZFS_NO_INITIALIZE:
262 return (dgettext(TEXT_DOMAIN, "there is no active "
265 return (dgettext(TEXT_DOMAIN, "unknown error"));
267 assert(hdl->libzfs_error == 0);
268 return (dgettext(TEXT_DOMAIN, "no error"));
274 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
280 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
282 hdl->libzfs_desc_active = 1;
288 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
290 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
292 hdl->libzfs_error = error;
294 if (hdl->libzfs_desc_active)
295 hdl->libzfs_desc_active = 0;
297 hdl->libzfs_desc[0] = '\0';
299 if (hdl->libzfs_printerr) {
300 if (error == EZFS_UNKNOWN) {
301 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
302 "error: %s\n"), libzfs_error_description(hdl));
306 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
307 libzfs_error_description(hdl));
308 if (error == EZFS_NOMEM)
314 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
316 return (zfs_error_fmt(hdl, error, "%s", msg));
321 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
327 zfs_verror(hdl, error, fmt, ap);
335 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
341 zfs_verror(hdl, EZFS_PERM, fmt, ap);
345 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
349 zfs_verror(hdl, EZFS_IO, fmt, ap);
353 zfs_verror(hdl, EZFS_FAULT, fmt, ap);
357 zfs_verror(hdl, EZFS_INTR, fmt, ap);
365 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
367 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
372 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
378 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
387 zfs_verror(hdl, EZFS_IO, fmt, ap);
391 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
392 "dataset does not exist"));
393 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
398 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
403 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
404 "dataset already exists"));
405 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
409 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
411 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
414 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
417 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
420 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
423 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
424 "pool I/O is currently suspended"));
425 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
428 zfs_error_aux(hdl, strerror(error));
429 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
438 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
440 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
445 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
451 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
458 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
463 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
464 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
468 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
469 "pool already exists"));
470 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
474 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
475 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
479 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
480 "one or more devices is currently unavailable"));
481 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
485 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
489 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
493 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
498 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
503 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
504 "pool I/O is currently suspended"));
505 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
509 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
511 /* There is no pending operation to cancel */
513 zfs_verror(hdl, EZFS_NO_PENDING, fmt, ap);
515 case ZFS_ERR_CHECKPOINT_EXISTS:
516 zfs_verror(hdl, EZFS_CHECKPOINT_EXISTS, fmt, ap);
518 case ZFS_ERR_DISCARDING_CHECKPOINT:
519 zfs_verror(hdl, EZFS_DISCARDING_CHECKPOINT, fmt, ap);
521 case ZFS_ERR_NO_CHECKPOINT:
522 zfs_verror(hdl, EZFS_NO_CHECKPOINT, fmt, ap);
524 case ZFS_ERR_DEVRM_IN_PROGRESS:
525 zfs_verror(hdl, EZFS_DEVRM_IN_PROGRESS, fmt, ap);
527 case ZFS_ERR_VDEV_TOO_BIG:
528 zfs_verror(hdl, EZFS_VDEV_TOO_BIG, fmt, ap);
531 zfs_error_aux(hdl, strerror(error));
532 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
540 * Display an out of memory error message and abort the current program.
543 no_memory(libzfs_handle_t *hdl)
545 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
549 * A safe form of malloc() which will die if the allocation fails.
552 zfs_alloc(libzfs_handle_t *hdl, size_t size)
556 if ((data = calloc(1, size)) == NULL)
557 (void) no_memory(hdl);
563 * A safe form of asprintf() which will die if the allocation fails.
567 zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...)
575 err = vasprintf(&ret, fmt, ap);
580 (void) no_memory(hdl);
586 * A safe form of realloc(), which also zeroes newly allocated space.
589 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
593 if ((ret = realloc(ptr, newsize)) == NULL) {
594 (void) no_memory(hdl);
598 bzero((char *)ret + oldsize, (newsize - oldsize));
603 * A safe form of strdup() which will die if the allocation fails.
606 zfs_strdup(libzfs_handle_t *hdl, const char *str)
610 if ((ret = strdup(str)) == NULL)
611 (void) no_memory(hdl);
617 * Convert a number to an appropriately human-readable output.
620 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
622 nicenum(num, buf, buflen);
626 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
628 hdl->libzfs_printerr = printerr;
636 if (modfind("zfs") < 0) {
637 /* Not present in kernel, try loading it. */
638 if (kldload("zfs") < 0 || modfind("zfs") < 0) {
649 libzfs_handle_t *hdl;
651 if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) {
655 if (libzfs_load() < 0) {
660 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
665 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
666 (void) close(hdl->libzfs_fd);
671 hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r");
673 if (libzfs_core_init() != 0) {
674 (void) close(hdl->libzfs_fd);
675 (void) fclose(hdl->libzfs_mnttab);
676 (void) fclose(hdl->libzfs_sharetab);
683 zpool_feature_init();
684 libzfs_mnttab_init(hdl);
686 if (getenv("ZFS_PROP_DEBUG") != NULL) {
687 hdl->libzfs_prop_debug = B_TRUE;
694 libzfs_fini(libzfs_handle_t *hdl)
696 (void) close(hdl->libzfs_fd);
697 if (hdl->libzfs_mnttab)
698 (void) fclose(hdl->libzfs_mnttab);
699 if (hdl->libzfs_sharetab)
700 (void) fclose(hdl->libzfs_sharetab);
701 zfs_uninit_libshare(hdl);
702 zpool_free_handles(hdl);
704 libzfs_fru_clear(hdl, B_TRUE);
706 namespace_clear(hdl);
707 libzfs_mnttab_fini(hdl);
713 zpool_get_handle(zpool_handle_t *zhp)
715 return (zhp->zpool_hdl);
719 zfs_get_handle(zfs_handle_t *zhp)
721 return (zhp->zfs_hdl);
725 zfs_get_pool_handle(const zfs_handle_t *zhp)
727 return (zhp->zpool_hdl);
731 * Given a name, determine whether or not it's a valid path
732 * (starts with '/' or "./"). If so, walk the mnttab trying
733 * to match the device number. If not, treat the path as an
734 * fs/vol/snap/bkmark name.
737 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
739 struct stat64 statbuf;
740 struct extmnttab entry;
743 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
745 * It's not a valid path, assume it's a name of type 'argtype'.
747 return (zfs_open(hdl, path, argtype));
750 if (stat64(path, &statbuf) != 0) {
751 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
756 rewind(hdl->libzfs_mnttab);
757 while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) {
758 if (makedevice(entry.mnt_major, entry.mnt_minor) ==
767 ret = statfs(path, &sfs);
769 statfs2mnttab(&sfs, &entry);
771 (void) fprintf(stderr, "%s: %s\n", path,
780 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
781 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
786 return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
790 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
794 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
798 zc->zc_nvlist_dst_size = len;
800 (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size);
801 if (zc->zc_nvlist_dst == 0)
808 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
809 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
810 * filled in by the kernel to indicate the actual required size.
813 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
815 free((void *)(uintptr_t)zc->zc_nvlist_dst);
817 (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size);
818 if (zc->zc_nvlist_dst == 0)
825 * Called to free the src and dst nvlists stored in the command structure.
828 zcmd_free_nvlists(zfs_cmd_t *zc)
830 free((void *)(uintptr_t)zc->zc_nvlist_conf);
831 free((void *)(uintptr_t)zc->zc_nvlist_src);
832 free((void *)(uintptr_t)zc->zc_nvlist_dst);
833 zc->zc_nvlist_conf = NULL;
834 zc->zc_nvlist_src = NULL;
835 zc->zc_nvlist_dst = NULL;
839 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
845 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
847 if ((packed = zfs_alloc(hdl, len)) == NULL)
850 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
852 *outnv = (uint64_t)(uintptr_t)packed;
859 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
861 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
862 &zc->zc_nvlist_conf_size, nvl));
866 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
868 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
869 &zc->zc_nvlist_src_size, nvl));
873 * Unpacks an nvlist from the ZFS ioctl command structure.
876 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
878 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
879 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
880 return (no_memory(hdl));
886 zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc)
888 return (ioctl(hdl->libzfs_fd, request, zc));
892 * ================================================================
893 * API shared by zfs and zpool property management
894 * ================================================================
898 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
900 zprop_list_t *pl = cbp->cb_proplist;
905 cbp->cb_first = B_FALSE;
906 if (cbp->cb_scripted)
910 * Start with the length of the column headers.
912 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
913 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
915 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
917 cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN,
919 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
922 /* first property is always NAME */
923 assert(cbp->cb_proplist->pl_prop ==
924 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
927 * Go through and calculate the widths for each column. For the
928 * 'source' column, we kludge it up by taking the worst-case scenario of
929 * inheriting from the longest name. This is acceptable because in the
930 * majority of cases 'SOURCE' is the last column displayed, and we don't
931 * use the width anyway. Note that the 'VALUE' column can be oversized,
932 * if the name of the property is much longer than any values we find.
934 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
938 if (pl->pl_prop != ZPROP_INVAL) {
939 const char *propname = (type == ZFS_TYPE_POOL) ?
940 zpool_prop_to_name(pl->pl_prop) :
941 zfs_prop_to_name(pl->pl_prop);
943 len = strlen(propname);
944 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
945 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
947 len = strlen(pl->pl_user_prop);
948 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
949 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
953 * 'VALUE' column. The first property is always the 'name'
954 * property that was tacked on either by /sbin/zfs's
955 * zfs_do_get() or when calling zprop_expand_list(), so we
956 * ignore its width. If the user specified the name property
957 * to display, then it will be later in the list in any case.
959 if (pl != cbp->cb_proplist &&
960 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
961 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
963 /* 'RECEIVED' column. */
964 if (pl != cbp->cb_proplist &&
965 pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD])
966 cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width;
969 * 'NAME' and 'SOURCE' columns
971 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
973 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
974 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
975 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
976 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
981 * Now go through and print the headers.
983 for (i = 0; i < ZFS_GET_NCOLS; i++) {
984 switch (cbp->cb_columns[i]) {
986 title = dgettext(TEXT_DOMAIN, "NAME");
988 case GET_COL_PROPERTY:
989 title = dgettext(TEXT_DOMAIN, "PROPERTY");
992 title = dgettext(TEXT_DOMAIN, "VALUE");
995 title = dgettext(TEXT_DOMAIN, "RECEIVED");
998 title = dgettext(TEXT_DOMAIN, "SOURCE");
1004 if (title != NULL) {
1005 if (i == (ZFS_GET_NCOLS - 1) ||
1006 cbp->cb_columns[i + 1] == GET_COL_NONE)
1007 (void) printf("%s", title);
1009 (void) printf("%-*s ",
1010 cbp->cb_colwidths[cbp->cb_columns[i]],
1014 (void) printf("\n");
1018 * Display a single line of output, according to the settings in the callback
1022 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
1023 const char *propname, const char *value, zprop_source_t sourcetype,
1024 const char *source, const char *recvd_value)
1027 const char *str = NULL;
1031 * Ignore those source types that the user has chosen to ignore.
1033 if ((sourcetype & cbp->cb_sources) == 0)
1037 zprop_print_headers(cbp, cbp->cb_type);
1039 for (i = 0; i < ZFS_GET_NCOLS; i++) {
1040 switch (cbp->cb_columns[i]) {
1045 case GET_COL_PROPERTY:
1053 case GET_COL_SOURCE:
1054 switch (sourcetype) {
1055 case ZPROP_SRC_NONE:
1059 case ZPROP_SRC_DEFAULT:
1063 case ZPROP_SRC_LOCAL:
1067 case ZPROP_SRC_TEMPORARY:
1071 case ZPROP_SRC_INHERITED:
1072 (void) snprintf(buf, sizeof (buf),
1073 "inherited from %s", source);
1076 case ZPROP_SRC_RECEIVED:
1082 assert(!"unhandled zprop_source_t");
1087 str = (recvd_value == NULL ? "-" : recvd_value);
1094 if (cbp->cb_columns[i + 1] == GET_COL_NONE)
1095 (void) printf("%s", str);
1096 else if (cbp->cb_scripted)
1097 (void) printf("%s\t", str);
1099 (void) printf("%-*s ",
1100 cbp->cb_colwidths[cbp->cb_columns[i]],
1104 (void) printf("\n");
1108 * Given a numeric suffix, convert the value into a number of bits that the
1109 * resulting value must be shifted.
1112 str2shift(libzfs_handle_t *hdl, const char *buf)
1114 const char *ends = "BKMGTPEZ";
1119 for (i = 0; i < strlen(ends); i++) {
1120 if (toupper(buf[0]) == ends[i])
1123 if (i == strlen(ends)) {
1124 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1125 "invalid numeric suffix '%s'"), buf);
1130 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1131 * allow 'BB' - that's just weird.
1133 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1134 toupper(buf[0]) != 'B'))
1137 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1138 "invalid numeric suffix '%s'"), buf);
1143 * Convert a string of the form '100G' into a real number. Used when setting
1144 * properties or creating a volume. 'buf' is used to place an extended error
1145 * message for the caller to use.
1148 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1155 /* Check to see if this looks like a number. */
1156 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1158 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1159 "bad numeric value '%s'"), value);
1163 /* Rely on strtoull() to process the numeric portion. */
1165 *num = strtoull(value, &end, 10);
1168 * Check for ERANGE, which indicates that the value is too large to fit
1169 * in a 64-bit value.
1171 if (errno == ERANGE) {
1173 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1174 "numeric value is too large"));
1179 * If we have a decimal value, then do the computation with floating
1180 * point arithmetic. Otherwise, use standard arithmetic.
1183 double fval = strtod(value, &end);
1185 if ((shift = str2shift(hdl, end)) == -1)
1188 fval *= pow(2, shift);
1190 if (fval > UINT64_MAX) {
1192 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1193 "numeric value is too large"));
1197 *num = (uint64_t)fval;
1199 if ((shift = str2shift(hdl, end)) == -1)
1202 /* Check for overflow */
1203 if (shift >= 64 || (*num << shift) >> shift != *num) {
1205 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1206 "numeric value is too large"));
1217 * Given a propname=value nvpair to set, parse any numeric properties
1218 * (index, boolean, etc) if they are specified as strings and add the
1219 * resulting nvpair to the returned nvlist.
1221 * At the DSL layer, all properties are either 64-bit numbers or strings.
1222 * We want the user to be able to ignore this fact and specify properties
1223 * as native values (numbers, for example) or as strings (to simplify
1224 * command line utilities). This also handles converting index types
1225 * (compression, checksum, etc) from strings to their on-disk index.
1228 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1229 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1232 data_type_t datatype = nvpair_type(elem);
1233 zprop_type_t proptype;
1234 const char *propname;
1236 boolean_t isnone = B_FALSE;
1237 boolean_t isauto = B_FALSE;
1239 if (type == ZFS_TYPE_POOL) {
1240 proptype = zpool_prop_get_type(prop);
1241 propname = zpool_prop_to_name(prop);
1243 proptype = zfs_prop_get_type(prop);
1244 propname = zfs_prop_to_name(prop);
1248 * Convert any properties to the internal DSL value types.
1254 case PROP_TYPE_STRING:
1255 if (datatype != DATA_TYPE_STRING) {
1256 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1257 "'%s' must be a string"), nvpair_name(elem));
1260 (void) nvpair_value_string(elem, svalp);
1261 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1262 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1263 "'%s' is too long"), nvpair_name(elem));
1268 case PROP_TYPE_NUMBER:
1269 if (datatype == DATA_TYPE_STRING) {
1270 (void) nvpair_value_string(elem, &value);
1271 if (strcmp(value, "none") == 0) {
1273 } else if (strcmp(value, "auto") == 0) {
1275 } else if (zfs_nicestrtonum(hdl, value, ivalp) != 0) {
1278 } else if (datatype == DATA_TYPE_UINT64) {
1279 (void) nvpair_value_uint64(elem, ivalp);
1281 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1282 "'%s' must be a number"), nvpair_name(elem));
1287 * Quota special: force 'none' and don't allow 0.
1289 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1290 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1291 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1292 "use 'none' to disable quota/refquota"));
1297 * Special handling for "*_limit=none". In this case it's not
1300 if ((type & ZFS_TYPE_DATASET) && isnone &&
1301 (prop == ZFS_PROP_FILESYSTEM_LIMIT ||
1302 prop == ZFS_PROP_SNAPSHOT_LIMIT)) {
1303 *ivalp = UINT64_MAX;
1307 * Special handling for setting 'refreservation' to 'auto'. Use
1308 * UINT64_MAX to tell the caller to use zfs_fix_auto_resv().
1309 * 'auto' is only allowed on volumes.
1313 case ZFS_PROP_REFRESERVATION:
1314 if ((type & ZFS_TYPE_VOLUME) == 0) {
1315 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1316 "'%s=auto' only allowed on "
1317 "volumes"), nvpair_name(elem));
1320 *ivalp = UINT64_MAX;
1323 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1324 "'auto' is invalid value for '%s'"),
1332 case PROP_TYPE_INDEX:
1333 if (datatype != DATA_TYPE_STRING) {
1334 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1335 "'%s' must be a string"), nvpair_name(elem));
1339 (void) nvpair_value_string(elem, &value);
1341 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1342 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1343 "'%s' must be one of '%s'"), propname,
1344 zprop_values(prop, type));
1354 * Add the result to our return set of properties.
1356 if (*svalp != NULL) {
1357 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1358 (void) no_memory(hdl);
1362 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1363 (void) no_memory(hdl);
1370 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1375 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1379 zprop_list_t *entry;
1381 prop = zprop_name_to_prop(propname, type);
1383 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1387 * When no property table entry can be found, return failure if
1388 * this is a pool property or if this isn't a user-defined
1391 if (prop == ZPROP_INVAL && ((type == ZFS_TYPE_POOL &&
1392 !zpool_prop_feature(propname) &&
1393 !zpool_prop_unsupported(propname)) ||
1394 (type == ZFS_TYPE_DATASET && !zfs_prop_user(propname) &&
1395 !zfs_prop_userquota(propname) && !zfs_prop_written(propname)))) {
1396 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1397 "invalid property '%s'"), propname);
1398 return (zfs_error(hdl, EZFS_BADPROP,
1399 dgettext(TEXT_DOMAIN, "bad property list")));
1402 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1405 entry->pl_prop = prop;
1406 if (prop == ZPROP_INVAL) {
1407 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) ==
1412 entry->pl_width = strlen(propname);
1414 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1424 * Given a comma-separated list of properties, construct a property list
1425 * containing both user-defined and native properties. This function will
1426 * return a NULL list if 'all' is specified, which can later be expanded
1427 * by zprop_expand_list().
1430 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1436 * If 'all' is specified, return a NULL list.
1438 if (strcmp(props, "all") == 0)
1442 * If no props were specified, return an error.
1444 if (props[0] == '\0') {
1445 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1446 "no properties specified"));
1447 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1448 "bad property list")));
1452 * It would be nice to use getsubopt() here, but the inclusion of column
1453 * aliases makes this more effort than it's worth.
1455 while (*props != '\0') {
1460 if ((p = strchr(props, ',')) == NULL) {
1461 len = strlen(props);
1468 * Check for empty options.
1471 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1472 "empty property name"));
1473 return (zfs_error(hdl, EZFS_BADPROP,
1474 dgettext(TEXT_DOMAIN, "bad property list")));
1478 * Check all regular property names.
1483 if (strcmp(props, "space") == 0) {
1484 static char *spaceprops[] = {
1485 "name", "avail", "used", "usedbysnapshots",
1486 "usedbydataset", "usedbyrefreservation",
1487 "usedbychildren", NULL
1491 for (i = 0; spaceprops[i]; i++) {
1492 if (addlist(hdl, spaceprops[i], listp, type))
1494 listp = &(*listp)->pl_next;
1497 if (addlist(hdl, props, listp, type))
1499 listp = &(*listp)->pl_next;
1511 zprop_free_list(zprop_list_t *pl)
1515 while (pl != NULL) {
1517 free(pl->pl_user_prop);
1523 typedef struct expand_data {
1524 zprop_list_t **last;
1525 libzfs_handle_t *hdl;
1530 zprop_expand_list_cb(int prop, void *cb)
1532 zprop_list_t *entry;
1533 expand_data_t *edp = cb;
1535 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1536 return (ZPROP_INVAL);
1538 entry->pl_prop = prop;
1539 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1540 entry->pl_all = B_TRUE;
1542 *(edp->last) = entry;
1543 edp->last = &entry->pl_next;
1545 return (ZPROP_CONT);
1549 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1551 zprop_list_t *entry;
1552 zprop_list_t **last;
1557 * If this is the very first time we've been called for an 'all'
1558 * specification, expand the list to include all native
1567 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1568 B_FALSE, type) == ZPROP_INVAL)
1572 * Add 'name' to the beginning of the list, which is handled
1575 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1578 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1580 entry->pl_width = zprop_width(entry->pl_prop,
1581 &entry->pl_fixed, type);
1582 entry->pl_all = B_TRUE;
1583 entry->pl_next = *plp;
1590 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1593 return (zprop_iter_common(func, cb, show_all, ordered, type));