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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
27 * 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 "
98 return (dgettext(TEXT_DOMAIN, "volume has data"));
99 case EZFS_INVALIDNAME:
100 return (dgettext(TEXT_DOMAIN, "invalid name"));
101 case EZFS_BADRESTORE:
102 return (dgettext(TEXT_DOMAIN, "unable to restore to "
105 return (dgettext(TEXT_DOMAIN, "backup failed"));
107 return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
109 return (dgettext(TEXT_DOMAIN, "no such device in pool"));
111 return (dgettext(TEXT_DOMAIN, "invalid device"));
112 case EZFS_NOREPLICAS:
113 return (dgettext(TEXT_DOMAIN, "no valid replicas"));
114 case EZFS_RESILVERING:
115 return (dgettext(TEXT_DOMAIN, "currently resilvering"));
116 case EZFS_BADVERSION:
117 return (dgettext(TEXT_DOMAIN, "unsupported version"));
118 case EZFS_POOLUNAVAIL:
119 return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
120 case EZFS_DEVOVERFLOW:
121 return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
123 return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
124 case EZFS_CROSSTARGET:
125 return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
128 return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
129 case EZFS_MOUNTFAILED:
130 return (dgettext(TEXT_DOMAIN, "mount failed"));
131 case EZFS_UMOUNTFAILED:
132 return (dgettext(TEXT_DOMAIN, "umount failed"));
133 case EZFS_UNSHARENFSFAILED:
134 return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
135 case EZFS_SHARENFSFAILED:
136 return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
137 case EZFS_UNSHARESMBFAILED:
138 return (dgettext(TEXT_DOMAIN, "smb remove share failed"));
139 case EZFS_SHARESMBFAILED:
140 return (dgettext(TEXT_DOMAIN, "smb add share failed"));
141 case EZFS_ISCSISVCUNAVAIL:
142 return (dgettext(TEXT_DOMAIN,
143 "iscsitgt service need to be enabled by "
144 "a privileged user"));
146 return (dgettext(TEXT_DOMAIN, "failed to create /dev links"));
148 return (dgettext(TEXT_DOMAIN, "permission denied"));
150 return (dgettext(TEXT_DOMAIN, "out of space"));
152 return (dgettext(TEXT_DOMAIN, "I/O error"));
154 return (dgettext(TEXT_DOMAIN, "signal received"));
156 return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
158 case EZFS_INVALCONFIG:
159 return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
161 return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
163 return (dgettext(TEXT_DOMAIN, "no history available"));
164 case EZFS_UNSHAREISCSIFAILED:
165 return (dgettext(TEXT_DOMAIN,
166 "iscsitgtd failed request to unshare"));
167 case EZFS_SHAREISCSIFAILED:
168 return (dgettext(TEXT_DOMAIN,
169 "iscsitgtd failed request to share"));
171 return (dgettext(TEXT_DOMAIN, "failed to retrieve "
173 case EZFS_POOL_NOTSUP:
174 return (dgettext(TEXT_DOMAIN, "operation not supported "
175 "on this type of pool"));
176 case EZFS_POOL_INVALARG:
177 return (dgettext(TEXT_DOMAIN, "invalid argument for "
178 "this pool operation"));
179 case EZFS_NAMETOOLONG:
180 return (dgettext(TEXT_DOMAIN, "dataset name is too long"));
181 case EZFS_OPENFAILED:
182 return (dgettext(TEXT_DOMAIN, "open failed"));
184 return (dgettext(TEXT_DOMAIN,
185 "disk capacity information could not be retrieved"));
186 case EZFS_LABELFAILED:
187 return (dgettext(TEXT_DOMAIN, "write of label failed"));
189 return (dgettext(TEXT_DOMAIN, "invalid user/group"));
191 return (dgettext(TEXT_DOMAIN, "invalid permission"));
192 case EZFS_BADPERMSET:
193 return (dgettext(TEXT_DOMAIN, "invalid permission set name"));
194 case EZFS_NODELEGATION:
195 return (dgettext(TEXT_DOMAIN, "delegated administration is "
196 "disabled on pool"));
197 case EZFS_PERMRDONLY:
198 return (dgettext(TEXT_DOMAIN, "snapshot permissions cannot be"
201 return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
203 return (dgettext(TEXT_DOMAIN, "device is in use as a cache"));
204 case EZFS_VDEVNOTSUP:
205 return (dgettext(TEXT_DOMAIN, "vdev specification is not "
208 return (dgettext(TEXT_DOMAIN, "operation not supported "
210 case EZFS_ACTIVE_SPARE:
211 return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
213 case EZFS_UNPLAYED_LOGS:
214 return (dgettext(TEXT_DOMAIN, "log device has unplayed intent "
217 return (dgettext(TEXT_DOMAIN, "unknown error"));
219 assert(hdl->libzfs_error == 0);
220 return (dgettext(TEXT_DOMAIN, "no error"));
226 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
232 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
234 hdl->libzfs_desc_active = 1;
240 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
242 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
244 hdl->libzfs_error = error;
246 if (hdl->libzfs_desc_active)
247 hdl->libzfs_desc_active = 0;
249 hdl->libzfs_desc[0] = '\0';
251 if (hdl->libzfs_printerr) {
252 if (error == EZFS_UNKNOWN) {
253 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
254 "error: %s\n"), libzfs_error_description(hdl));
258 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
259 libzfs_error_description(hdl));
260 if (error == EZFS_NOMEM)
266 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
268 return (zfs_error_fmt(hdl, error, "%s", msg));
273 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
279 zfs_verror(hdl, error, fmt, ap);
287 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
293 zfs_verror(hdl, EZFS_PERM, fmt, ap);
297 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
301 zfs_verror(hdl, EZFS_IO, fmt, ap);
305 zfs_verror(hdl, EZFS_INTR, fmt, ap);
313 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
315 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
320 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
326 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
334 zfs_verror(hdl, EZFS_IO, fmt, ap);
338 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
339 "dataset does not exist"));
340 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
345 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
349 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
350 "dataset already exists"));
351 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
355 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
357 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
360 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
361 "snapshot permissions cannot be modified"));
362 zfs_verror(hdl, EZFS_PERMRDONLY, fmt, ap);
365 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
368 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
371 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
372 "pool I/O is currently suspended"));
373 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
376 zfs_error_aux(hdl, strerror(errno));
377 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
386 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
388 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
393 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
399 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
406 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
411 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
412 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
416 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
417 "pool already exists"));
418 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
422 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
423 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
427 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
428 "one or more devices is currently unavailable"));
429 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
433 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
437 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
441 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
446 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
449 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
450 "pool I/O is currently suspended"));
451 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
455 zfs_error_aux(hdl, strerror(error));
456 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
464 * Display an out of memory error message and abort the current program.
467 no_memory(libzfs_handle_t *hdl)
469 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
473 * A safe form of malloc() which will die if the allocation fails.
476 zfs_alloc(libzfs_handle_t *hdl, size_t size)
480 if ((data = calloc(1, size)) == NULL)
481 (void) no_memory(hdl);
487 * A safe form of realloc(), which also zeroes newly allocated space.
490 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
494 if ((ret = realloc(ptr, newsize)) == NULL) {
495 (void) no_memory(hdl);
499 bzero((char *)ret + oldsize, (newsize - oldsize));
504 * A safe form of strdup() which will die if the allocation fails.
507 zfs_strdup(libzfs_handle_t *hdl, const char *str)
511 if ((ret = strdup(str)) == NULL)
512 (void) no_memory(hdl);
518 * Convert a number to an appropriately human-readable output.
521 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
532 u = " KMGTPE"[index];
535 (void) snprintf(buf, buflen, "%llu", n);
536 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
538 * If this is an even multiple of the base, always display
539 * without any decimal precision.
541 (void) snprintf(buf, buflen, "%llu%c", n, u);
544 * We want to choose a precision that reflects the best choice
545 * for fitting in 5 characters. This can get rather tricky when
546 * we have numbers that are very close to an order of magnitude.
547 * For example, when displaying 10239 (which is really 9.999K),
548 * we want only a single place of precision for 10.0K. We could
549 * develop some complex heuristics for this, but it's much
550 * easier just to try each combination in turn.
553 for (i = 2; i >= 0; i--) {
554 if (snprintf(buf, buflen, "%.*f%c", i,
555 (double)num / (1ULL << 10 * index), u) <= 5)
562 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
564 hdl->libzfs_printerr = printerr;
570 libzfs_handle_t *hdl;
572 if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
576 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
581 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
582 (void) close(hdl->libzfs_fd);
587 hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "r");
591 libzfs_mnttab_init(hdl);
597 libzfs_fini(libzfs_handle_t *hdl)
599 (void) close(hdl->libzfs_fd);
600 if (hdl->libzfs_mnttab)
601 (void) fclose(hdl->libzfs_mnttab);
602 if (hdl->libzfs_sharetab)
603 (void) fclose(hdl->libzfs_sharetab);
604 zfs_uninit_libshare(hdl);
605 if (hdl->libzfs_log_str)
606 (void) free(hdl->libzfs_log_str);
607 zpool_free_handles(hdl);
608 namespace_clear(hdl);
609 libzfs_mnttab_fini(hdl);
614 zpool_get_handle(zpool_handle_t *zhp)
616 return (zhp->zpool_hdl);
620 zfs_get_handle(zfs_handle_t *zhp)
622 return (zhp->zfs_hdl);
626 zfs_get_pool_handle(const zfs_handle_t *zhp)
628 return (zhp->zpool_hdl);
632 * Given a name, determine whether or not it's a valid path
633 * (starts with '/' or "./"). If so, walk the mnttab trying
634 * to match the device number. If not, treat the path as an
638 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
640 struct stat64 statbuf;
641 struct extmnttab entry;
644 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
646 * It's not a valid path, assume it's a name of type 'argtype'.
648 return (zfs_open(hdl, path, argtype));
651 if (stat64(path, &statbuf) != 0) {
652 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
656 rewind(hdl->libzfs_mnttab);
657 while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) {
658 if (makedevice(entry.mnt_major, entry.mnt_minor) ==
667 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
668 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
673 return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
677 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
681 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
685 zc->zc_nvlist_dst_size = len;
686 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
687 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == NULL)
694 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
695 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
696 * filled in by the kernel to indicate the actual required size.
699 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
701 free((void *)(uintptr_t)zc->zc_nvlist_dst);
702 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
703 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
711 * Called to free the src and dst nvlists stored in the command structure.
714 zcmd_free_nvlists(zfs_cmd_t *zc)
716 free((void *)(uintptr_t)zc->zc_nvlist_conf);
717 free((void *)(uintptr_t)zc->zc_nvlist_src);
718 free((void *)(uintptr_t)zc->zc_nvlist_dst);
722 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
728 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
730 if ((packed = zfs_alloc(hdl, len)) == NULL)
733 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
735 *outnv = (uint64_t)(uintptr_t)packed;
742 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
744 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
745 &zc->zc_nvlist_conf_size, nvl));
749 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
751 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
752 &zc->zc_nvlist_src_size, nvl));
756 * Unpacks an nvlist from the ZFS ioctl command structure.
759 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
761 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
762 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
763 return (no_memory(hdl));
769 zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc)
773 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
774 error = ioctl(hdl->libzfs_fd, request, zc);
775 if (hdl->libzfs_log_str) {
776 free(hdl->libzfs_log_str);
777 hdl->libzfs_log_str = NULL;
785 * ================================================================
786 * API shared by zfs and zpool property management
787 * ================================================================
791 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
793 zprop_list_t *pl = cbp->cb_proplist;
798 cbp->cb_first = B_FALSE;
799 if (cbp->cb_scripted)
803 * Start with the length of the column headers.
805 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
806 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
808 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
810 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
813 /* first property is always NAME */
814 assert(cbp->cb_proplist->pl_prop ==
815 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
818 * Go through and calculate the widths for each column. For the
819 * 'source' column, we kludge it up by taking the worst-case scenario of
820 * inheriting from the longest name. This is acceptable because in the
821 * majority of cases 'SOURCE' is the last column displayed, and we don't
822 * use the width anyway. Note that the 'VALUE' column can be oversized,
823 * if the name of the property is much longer the any values we find.
825 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
829 if (pl->pl_prop != ZPROP_INVAL) {
830 const char *propname = (type == ZFS_TYPE_POOL) ?
831 zpool_prop_to_name(pl->pl_prop) :
832 zfs_prop_to_name(pl->pl_prop);
834 len = strlen(propname);
835 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
836 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
838 len = strlen(pl->pl_user_prop);
839 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
840 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
844 * 'VALUE' column. The first property is always the 'name'
845 * property that was tacked on either by /sbin/zfs's
846 * zfs_do_get() or when calling zprop_expand_list(), so we
847 * ignore its width. If the user specified the name property
848 * to display, then it will be later in the list in any case.
850 if (pl != cbp->cb_proplist &&
851 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
852 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
855 * 'NAME' and 'SOURCE' columns
857 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
859 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
860 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
861 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
862 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
867 * Now go through and print the headers.
869 for (i = 0; i < 4; i++) {
870 switch (cbp->cb_columns[i]) {
872 title = dgettext(TEXT_DOMAIN, "NAME");
874 case GET_COL_PROPERTY:
875 title = dgettext(TEXT_DOMAIN, "PROPERTY");
878 title = dgettext(TEXT_DOMAIN, "VALUE");
881 title = dgettext(TEXT_DOMAIN, "SOURCE");
888 if (i == 3 || cbp->cb_columns[i + 1] == 0)
889 (void) printf("%s", title);
891 (void) printf("%-*s ",
892 cbp->cb_colwidths[cbp->cb_columns[i]],
900 * Display a single line of output, according to the settings in the callback
904 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
905 const char *propname, const char *value, zprop_source_t sourcetype,
913 * Ignore those source types that the user has chosen to ignore.
915 if ((sourcetype & cbp->cb_sources) == 0)
919 zprop_print_headers(cbp, cbp->cb_type);
921 for (i = 0; i < 4; i++) {
922 switch (cbp->cb_columns[i]) {
927 case GET_COL_PROPERTY:
936 switch (sourcetype) {
941 case ZPROP_SRC_DEFAULT:
945 case ZPROP_SRC_LOCAL:
949 case ZPROP_SRC_TEMPORARY:
953 case ZPROP_SRC_INHERITED:
954 (void) snprintf(buf, sizeof (buf),
955 "inherited from %s", source);
965 if (cbp->cb_columns[i + 1] == 0)
966 (void) printf("%s", str);
967 else if (cbp->cb_scripted)
968 (void) printf("%s\t", str);
970 (void) printf("%-*s ",
971 cbp->cb_colwidths[cbp->cb_columns[i]],
980 * Given a numeric suffix, convert the value into a number of bits that the
981 * resulting value must be shifted.
984 str2shift(libzfs_handle_t *hdl, const char *buf)
986 const char *ends = "BKMGTPEZ";
991 for (i = 0; i < strlen(ends); i++) {
992 if (toupper(buf[0]) == ends[i])
995 if (i == strlen(ends)) {
996 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
997 "invalid numeric suffix '%s'"), buf);
1002 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1003 * allow 'BB' - that's just weird.
1005 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1006 toupper(buf[0]) != 'B'))
1009 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1010 "invalid numeric suffix '%s'"), buf);
1015 * Convert a string of the form '100G' into a real number. Used when setting
1016 * properties or creating a volume. 'buf' is used to place an extended error
1017 * message for the caller to use.
1020 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1027 /* Check to see if this looks like a number. */
1028 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1030 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1031 "bad numeric value '%s'"), value);
1035 /* Rely on stroull() to process the numeric portion. */
1037 *num = strtoull(value, &end, 10);
1040 * Check for ERANGE, which indicates that the value is too large to fit
1041 * in a 64-bit value.
1043 if (errno == ERANGE) {
1045 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1046 "numeric value is too large"));
1051 * If we have a decimal value, then do the computation with floating
1052 * point arithmetic. Otherwise, use standard arithmetic.
1055 double fval = strtod(value, &end);
1057 if ((shift = str2shift(hdl, end)) == -1)
1060 fval *= pow(2, shift);
1062 if (fval > UINT64_MAX) {
1064 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1065 "numeric value is too large"));
1069 *num = (uint64_t)fval;
1071 if ((shift = str2shift(hdl, end)) == -1)
1074 /* Check for overflow */
1075 if (shift >= 64 || (*num << shift) >> shift != *num) {
1077 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1078 "numeric value is too large"));
1089 * Given a propname=value nvpair to set, parse any numeric properties
1090 * (index, boolean, etc) if they are specified as strings and add the
1091 * resulting nvpair to the returned nvlist.
1093 * At the DSL layer, all properties are either 64-bit numbers or strings.
1094 * We want the user to be able to ignore this fact and specify properties
1095 * as native values (numbers, for example) or as strings (to simplify
1096 * command line utilities). This also handles converting index types
1097 * (compression, checksum, etc) from strings to their on-disk index.
1100 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1101 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1104 data_type_t datatype = nvpair_type(elem);
1105 zprop_type_t proptype;
1106 const char *propname;
1108 boolean_t isnone = B_FALSE;
1110 if (type == ZFS_TYPE_POOL) {
1111 proptype = zpool_prop_get_type(prop);
1112 propname = zpool_prop_to_name(prop);
1114 proptype = zfs_prop_get_type(prop);
1115 propname = zfs_prop_to_name(prop);
1119 * Convert any properties to the internal DSL value types.
1125 case PROP_TYPE_STRING:
1126 if (datatype != DATA_TYPE_STRING) {
1127 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1128 "'%s' must be a string"), nvpair_name(elem));
1131 (void) nvpair_value_string(elem, svalp);
1132 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1133 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1134 "'%s' is too long"), nvpair_name(elem));
1139 case PROP_TYPE_NUMBER:
1140 if (datatype == DATA_TYPE_STRING) {
1141 (void) nvpair_value_string(elem, &value);
1142 if (strcmp(value, "none") == 0) {
1144 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1148 } else if (datatype == DATA_TYPE_UINT64) {
1149 (void) nvpair_value_uint64(elem, ivalp);
1151 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1152 "'%s' must be a number"), nvpair_name(elem));
1157 * Quota special: force 'none' and don't allow 0.
1159 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1160 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1161 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1162 "use 'none' to disable quota/refquota"));
1167 case PROP_TYPE_INDEX:
1168 if (datatype != DATA_TYPE_STRING) {
1169 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1170 "'%s' must be a string"), nvpair_name(elem));
1174 (void) nvpair_value_string(elem, &value);
1176 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1177 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1178 "'%s' must be one of '%s'"), propname,
1179 zprop_values(prop, type));
1189 * Add the result to our return set of properties.
1191 if (*svalp != NULL) {
1192 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1193 (void) no_memory(hdl);
1197 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1198 (void) no_memory(hdl);
1205 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1210 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1214 zprop_list_t *entry;
1216 prop = zprop_name_to_prop(propname, type);
1218 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1222 * When no property table entry can be found, return failure if
1223 * this is a pool property or if this isn't a user-defined
1226 if (prop == ZPROP_INVAL && (type == ZFS_TYPE_POOL ||
1227 (!zfs_prop_user(propname) && !zfs_prop_userquota(propname)))) {
1228 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1229 "invalid property '%s'"), propname);
1230 return (zfs_error(hdl, EZFS_BADPROP,
1231 dgettext(TEXT_DOMAIN, "bad property list")));
1234 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1237 entry->pl_prop = prop;
1238 if (prop == ZPROP_INVAL) {
1239 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == NULL) {
1243 entry->pl_width = strlen(propname);
1245 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1255 * Given a comma-separated list of properties, construct a property list
1256 * containing both user-defined and native properties. This function will
1257 * return a NULL list if 'all' is specified, which can later be expanded
1258 * by zprop_expand_list().
1261 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1267 * If 'all' is specified, return a NULL list.
1269 if (strcmp(props, "all") == 0)
1273 * If no props were specified, return an error.
1275 if (props[0] == '\0') {
1276 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1277 "no properties specified"));
1278 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1279 "bad property list")));
1283 * It would be nice to use getsubopt() here, but the inclusion of column
1284 * aliases makes this more effort than it's worth.
1286 while (*props != '\0') {
1291 if ((p = strchr(props, ',')) == NULL) {
1292 len = strlen(props);
1299 * Check for empty options.
1302 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1303 "empty property name"));
1304 return (zfs_error(hdl, EZFS_BADPROP,
1305 dgettext(TEXT_DOMAIN, "bad property list")));
1309 * Check all regular property names.
1314 if (strcmp(props, "space") == 0) {
1315 static char *spaceprops[] = {
1316 "name", "avail", "used", "usedbysnapshots",
1317 "usedbydataset", "usedbyrefreservation",
1318 "usedbychildren", NULL
1322 for (i = 0; spaceprops[i]; i++) {
1323 if (addlist(hdl, spaceprops[i], listp, type))
1325 listp = &(*listp)->pl_next;
1328 if (addlist(hdl, props, listp, type))
1330 listp = &(*listp)->pl_next;
1342 zprop_free_list(zprop_list_t *pl)
1346 while (pl != NULL) {
1348 free(pl->pl_user_prop);
1354 typedef struct expand_data {
1355 zprop_list_t **last;
1356 libzfs_handle_t *hdl;
1361 zprop_expand_list_cb(int prop, void *cb)
1363 zprop_list_t *entry;
1364 expand_data_t *edp = cb;
1366 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1367 return (ZPROP_INVAL);
1369 entry->pl_prop = prop;
1370 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1371 entry->pl_all = B_TRUE;
1373 *(edp->last) = entry;
1374 edp->last = &entry->pl_next;
1376 return (ZPROP_CONT);
1380 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1382 zprop_list_t *entry;
1383 zprop_list_t **last;
1388 * If this is the very first time we've been called for an 'all'
1389 * specification, expand the list to include all native
1398 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1399 B_FALSE, type) == ZPROP_INVAL)
1403 * Add 'name' to the beginning of the list, which is handled
1406 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1409 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1411 entry->pl_width = zprop_width(entry->pl_prop,
1412 &entry->pl_fixed, type);
1413 entry->pl_all = B_TRUE;
1414 entry->pl_next = *plp;
1421 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1424 return (zprop_iter_common(func, cb, show_all, ordered, type));