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 "
214 return (dgettext(TEXT_DOMAIN, "unknown error"));
216 assert(hdl->libzfs_error == 0);
217 return (dgettext(TEXT_DOMAIN, "no error"));
223 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
229 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
231 hdl->libzfs_desc_active = 1;
237 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
239 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
241 hdl->libzfs_error = error;
243 if (hdl->libzfs_desc_active)
244 hdl->libzfs_desc_active = 0;
246 hdl->libzfs_desc[0] = '\0';
248 if (hdl->libzfs_printerr) {
249 if (error == EZFS_UNKNOWN) {
250 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
251 "error: %s\n"), libzfs_error_description(hdl));
255 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
256 libzfs_error_description(hdl));
257 if (error == EZFS_NOMEM)
263 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
265 return (zfs_error_fmt(hdl, error, "%s", msg));
270 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
276 zfs_verror(hdl, error, fmt, ap);
284 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
290 zfs_verror(hdl, EZFS_PERM, fmt, ap);
294 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
298 zfs_verror(hdl, EZFS_IO, fmt, ap);
302 zfs_verror(hdl, EZFS_INTR, fmt, ap);
310 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
312 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
317 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
323 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
331 zfs_verror(hdl, EZFS_IO, fmt, ap);
335 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
336 "dataset does not exist"));
337 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
342 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
346 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
347 "dataset already exists"));
348 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
352 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
354 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
357 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
358 "snapshot permissions cannot be modified"));
359 zfs_verror(hdl, EZFS_PERMRDONLY, fmt, ap);
362 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
365 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
368 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
369 "pool I/O is currently suspended"));
370 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
373 zfs_error_aux(hdl, strerror(errno));
374 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
383 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
385 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
390 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
396 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
403 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
408 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
409 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
413 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
414 "pool already exists"));
415 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
419 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
420 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
424 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
425 "one or more devices is currently unavailable"));
426 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
430 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
434 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
438 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
443 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
446 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
447 "pool I/O is currently suspended"));
448 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
452 zfs_error_aux(hdl, strerror(error));
453 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
461 * Display an out of memory error message and abort the current program.
464 no_memory(libzfs_handle_t *hdl)
466 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
470 * A safe form of malloc() which will die if the allocation fails.
473 zfs_alloc(libzfs_handle_t *hdl, size_t size)
477 if ((data = calloc(1, size)) == NULL)
478 (void) no_memory(hdl);
484 * A safe form of realloc(), which also zeroes newly allocated space.
487 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
491 if ((ret = realloc(ptr, newsize)) == NULL) {
492 (void) no_memory(hdl);
496 bzero((char *)ret + oldsize, (newsize - oldsize));
501 * A safe form of strdup() which will die if the allocation fails.
504 zfs_strdup(libzfs_handle_t *hdl, const char *str)
508 if ((ret = strdup(str)) == NULL)
509 (void) no_memory(hdl);
515 * Convert a number to an appropriately human-readable output.
518 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
529 u = " KMGTPE"[index];
532 (void) snprintf(buf, buflen, "%llu", n);
533 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
535 * If this is an even multiple of the base, always display
536 * without any decimal precision.
538 (void) snprintf(buf, buflen, "%llu%c", n, u);
541 * We want to choose a precision that reflects the best choice
542 * for fitting in 5 characters. This can get rather tricky when
543 * we have numbers that are very close to an order of magnitude.
544 * For example, when displaying 10239 (which is really 9.999K),
545 * we want only a single place of precision for 10.0K. We could
546 * develop some complex heuristics for this, but it's much
547 * easier just to try each combination in turn.
550 for (i = 2; i >= 0; i--) {
551 if (snprintf(buf, buflen, "%.*f%c", i,
552 (double)num / (1ULL << 10 * index), u) <= 5)
559 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
561 hdl->libzfs_printerr = printerr;
569 if (modfind("zfs") < 0) {
570 /* Not present in kernel, try loading it. */
571 if (kldload("zfs") < 0 || modfind("zfs") < 0) {
582 libzfs_handle_t *hdl;
584 if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
588 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
589 if (libzfs_load() == 0)
590 hdl->libzfs_fd = open(ZFS_DEV, O_RDWR);
591 if (hdl->libzfs_fd < 0) {
597 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
598 (void) close(hdl->libzfs_fd);
603 hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r");
607 libzfs_mnttab_init(hdl);
613 libzfs_fini(libzfs_handle_t *hdl)
615 (void) close(hdl->libzfs_fd);
616 if (hdl->libzfs_mnttab)
617 (void) fclose(hdl->libzfs_mnttab);
618 if (hdl->libzfs_sharetab)
619 (void) fclose(hdl->libzfs_sharetab);
620 zfs_uninit_libshare(hdl);
621 if (hdl->libzfs_log_str)
622 (void) free(hdl->libzfs_log_str);
623 zpool_free_handles(hdl);
624 namespace_clear(hdl);
625 libzfs_mnttab_fini(hdl);
630 zpool_get_handle(zpool_handle_t *zhp)
632 return (zhp->zpool_hdl);
636 zfs_get_handle(zfs_handle_t *zhp)
638 return (zhp->zfs_hdl);
642 zfs_get_pool_handle(const zfs_handle_t *zhp)
644 return (zhp->zpool_hdl);
648 * Given a name, determine whether or not it's a valid path
649 * (starts with '/' or "./"). If so, walk the mnttab trying
650 * to match the device number. If not, treat the path as an
654 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
656 struct statfs statbuf;
658 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
660 * It's not a valid path, assume it's a name of type 'argtype'.
662 return (zfs_open(hdl, path, argtype));
665 if (statfs(path, &statbuf) != 0) {
666 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
670 if (strcmp(statbuf.f_fstypename, MNTTYPE_ZFS) != 0) {
671 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
676 return (zfs_open(hdl, statbuf.f_mntfromname, ZFS_TYPE_FILESYSTEM));
680 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
684 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
688 zc->zc_nvlist_dst_size = len;
689 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
690 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == 0)
697 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
698 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
699 * filled in by the kernel to indicate the actual required size.
702 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
704 free((void *)(uintptr_t)zc->zc_nvlist_dst);
705 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
706 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
714 * Called to free the src and dst nvlists stored in the command structure.
717 zcmd_free_nvlists(zfs_cmd_t *zc)
719 free((void *)(uintptr_t)zc->zc_nvlist_conf);
720 free((void *)(uintptr_t)zc->zc_nvlist_src);
721 free((void *)(uintptr_t)zc->zc_nvlist_dst);
725 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
731 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
733 if ((packed = zfs_alloc(hdl, len)) == NULL)
736 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
738 *outnv = (uint64_t)(uintptr_t)packed;
745 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
747 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
748 &zc->zc_nvlist_conf_size, nvl));
752 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
754 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
755 &zc->zc_nvlist_src_size, nvl));
759 * Unpacks an nvlist from the ZFS ioctl command structure.
762 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
764 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
765 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
766 return (no_memory(hdl));
772 zfs_ioctl(libzfs_handle_t *hdl, unsigned long request, zfs_cmd_t *zc)
776 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
777 error = ioctl(hdl->libzfs_fd, request, zc);
778 if (hdl->libzfs_log_str) {
779 free(hdl->libzfs_log_str);
780 hdl->libzfs_log_str = NULL;
788 * ================================================================
789 * API shared by zfs and zpool property management
790 * ================================================================
794 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
796 zprop_list_t *pl = cbp->cb_proplist;
801 cbp->cb_first = B_FALSE;
802 if (cbp->cb_scripted)
806 * Start with the length of the column headers.
808 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
809 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
811 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
813 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
816 /* first property is always NAME */
817 assert(cbp->cb_proplist->pl_prop ==
818 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
821 * Go through and calculate the widths for each column. For the
822 * 'source' column, we kludge it up by taking the worst-case scenario of
823 * inheriting from the longest name. This is acceptable because in the
824 * majority of cases 'SOURCE' is the last column displayed, and we don't
825 * use the width anyway. Note that the 'VALUE' column can be oversized,
826 * if the name of the property is much longer the any values we find.
828 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
832 if (pl->pl_prop != ZPROP_INVAL) {
833 const char *propname = (type == ZFS_TYPE_POOL) ?
834 zpool_prop_to_name(pl->pl_prop) :
835 zfs_prop_to_name(pl->pl_prop);
837 len = strlen(propname);
838 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
839 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
841 len = strlen(pl->pl_user_prop);
842 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
843 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
847 * 'VALUE' column. The first property is always the 'name'
848 * property that was tacked on either by /sbin/zfs's
849 * zfs_do_get() or when calling zprop_expand_list(), so we
850 * ignore its width. If the user specified the name property
851 * to display, then it will be later in the list in any case.
853 if (pl != cbp->cb_proplist &&
854 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
855 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
858 * 'NAME' and 'SOURCE' columns
860 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
862 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
863 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
864 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
865 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
870 * Now go through and print the headers.
872 for (i = 0; i < 4; i++) {
873 switch (cbp->cb_columns[i]) {
875 title = dgettext(TEXT_DOMAIN, "NAME");
877 case GET_COL_PROPERTY:
878 title = dgettext(TEXT_DOMAIN, "PROPERTY");
881 title = dgettext(TEXT_DOMAIN, "VALUE");
884 title = dgettext(TEXT_DOMAIN, "SOURCE");
891 if (i == 3 || cbp->cb_columns[i + 1] == 0)
892 (void) printf("%s", title);
894 (void) printf("%-*s ",
895 cbp->cb_colwidths[cbp->cb_columns[i]],
903 * Display a single line of output, according to the settings in the callback
907 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
908 const char *propname, const char *value, zprop_source_t sourcetype,
916 * Ignore those source types that the user has chosen to ignore.
918 if ((sourcetype & cbp->cb_sources) == 0)
922 zprop_print_headers(cbp, cbp->cb_type);
924 for (i = 0; i < 4; i++) {
925 switch (cbp->cb_columns[i]) {
930 case GET_COL_PROPERTY:
939 switch (sourcetype) {
944 case ZPROP_SRC_DEFAULT:
948 case ZPROP_SRC_LOCAL:
952 case ZPROP_SRC_TEMPORARY:
956 case ZPROP_SRC_INHERITED:
957 (void) snprintf(buf, sizeof (buf),
958 "inherited from %s", source);
968 if (cbp->cb_columns[i + 1] == 0)
969 (void) printf("%s", str);
970 else if (cbp->cb_scripted)
971 (void) printf("%s\t", str);
973 (void) printf("%-*s ",
974 cbp->cb_colwidths[cbp->cb_columns[i]],
983 * Given a numeric suffix, convert the value into a number of bits that the
984 * resulting value must be shifted.
987 str2shift(libzfs_handle_t *hdl, const char *buf)
989 const char *ends = "BKMGTPEZ";
994 for (i = 0; i < strlen(ends); i++) {
995 if (toupper(buf[0]) == ends[i])
998 if (i == strlen(ends)) {
999 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1000 "invalid numeric suffix '%s'"), buf);
1005 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1006 * allow 'BB' - that's just weird.
1008 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1009 toupper(buf[0]) != 'B'))
1012 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1013 "invalid numeric suffix '%s'"), buf);
1018 * Convert a string of the form '100G' into a real number. Used when setting
1019 * properties or creating a volume. 'buf' is used to place an extended error
1020 * message for the caller to use.
1023 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1030 /* Check to see if this looks like a number. */
1031 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1033 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1034 "bad numeric value '%s'"), value);
1038 /* Rely on stroull() to process the numeric portion. */
1040 *num = strtoull(value, &end, 10);
1043 * Check for ERANGE, which indicates that the value is too large to fit
1044 * in a 64-bit value.
1046 if (errno == ERANGE) {
1048 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1049 "numeric value is too large"));
1054 * If we have a decimal value, then do the computation with floating
1055 * point arithmetic. Otherwise, use standard arithmetic.
1058 double fval = strtod(value, &end);
1060 if ((shift = str2shift(hdl, end)) == -1)
1063 fval *= pow(2, shift);
1065 if (fval > UINT64_MAX) {
1067 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1068 "numeric value is too large"));
1072 *num = (uint64_t)fval;
1074 if ((shift = str2shift(hdl, end)) == -1)
1077 /* Check for overflow */
1078 if (shift >= 64 || (*num << shift) >> shift != *num) {
1080 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1081 "numeric value is too large"));
1092 * Given a propname=value nvpair to set, parse any numeric properties
1093 * (index, boolean, etc) if they are specified as strings and add the
1094 * resulting nvpair to the returned nvlist.
1096 * At the DSL layer, all properties are either 64-bit numbers or strings.
1097 * We want the user to be able to ignore this fact and specify properties
1098 * as native values (numbers, for example) or as strings (to simplify
1099 * command line utilities). This also handles converting index types
1100 * (compression, checksum, etc) from strings to their on-disk index.
1103 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1104 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1107 data_type_t datatype = nvpair_type(elem);
1108 zprop_type_t proptype;
1109 const char *propname;
1111 boolean_t isnone = B_FALSE;
1113 if (type == ZFS_TYPE_POOL) {
1114 proptype = zpool_prop_get_type(prop);
1115 propname = zpool_prop_to_name(prop);
1117 proptype = zfs_prop_get_type(prop);
1118 propname = zfs_prop_to_name(prop);
1122 * Convert any properties to the internal DSL value types.
1128 case PROP_TYPE_STRING:
1129 if (datatype != DATA_TYPE_STRING) {
1130 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1131 "'%s' must be a string"), nvpair_name(elem));
1134 (void) nvpair_value_string(elem, svalp);
1135 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1136 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1137 "'%s' is too long"), nvpair_name(elem));
1142 case PROP_TYPE_NUMBER:
1143 if (datatype == DATA_TYPE_STRING) {
1144 (void) nvpair_value_string(elem, &value);
1145 if (strcmp(value, "none") == 0) {
1147 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1151 } else if (datatype == DATA_TYPE_UINT64) {
1152 (void) nvpair_value_uint64(elem, ivalp);
1154 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1155 "'%s' must be a number"), nvpair_name(elem));
1160 * Quota special: force 'none' and don't allow 0.
1162 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1163 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1164 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1165 "use 'none' to disable quota/refquota"));
1170 case PROP_TYPE_INDEX:
1171 if (datatype != DATA_TYPE_STRING) {
1172 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1173 "'%s' must be a string"), nvpair_name(elem));
1177 (void) nvpair_value_string(elem, &value);
1179 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1180 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1181 "'%s' must be one of '%s'"), propname,
1182 zprop_values(prop, type));
1192 * Add the result to our return set of properties.
1194 if (*svalp != NULL) {
1195 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1196 (void) no_memory(hdl);
1200 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1201 (void) no_memory(hdl);
1208 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1213 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1217 zprop_list_t *entry;
1219 prop = zprop_name_to_prop(propname, type);
1221 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1225 * When no property table entry can be found, return failure if
1226 * this is a pool property or if this isn't a user-defined
1229 if (prop == ZPROP_INVAL && (type == ZFS_TYPE_POOL ||
1230 (!zfs_prop_user(propname) && !zfs_prop_userquota(propname)))) {
1231 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1232 "invalid property '%s'"), propname);
1233 return (zfs_error(hdl, EZFS_BADPROP,
1234 dgettext(TEXT_DOMAIN, "bad property list")));
1237 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1240 entry->pl_prop = prop;
1241 if (prop == ZPROP_INVAL) {
1242 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == NULL) {
1246 entry->pl_width = strlen(propname);
1248 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1258 * Given a comma-separated list of properties, construct a property list
1259 * containing both user-defined and native properties. This function will
1260 * return a NULL list if 'all' is specified, which can later be expanded
1261 * by zprop_expand_list().
1264 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1270 * If 'all' is specified, return a NULL list.
1272 if (strcmp(props, "all") == 0)
1276 * If no props were specified, return an error.
1278 if (props[0] == '\0') {
1279 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1280 "no properties specified"));
1281 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1282 "bad property list")));
1286 * It would be nice to use getsubopt() here, but the inclusion of column
1287 * aliases makes this more effort than it's worth.
1289 while (*props != '\0') {
1294 if ((p = strchr(props, ',')) == NULL) {
1295 len = strlen(props);
1302 * Check for empty options.
1305 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1306 "empty property name"));
1307 return (zfs_error(hdl, EZFS_BADPROP,
1308 dgettext(TEXT_DOMAIN, "bad property list")));
1312 * Check all regular property names.
1317 if (strcmp(props, "space") == 0) {
1318 static char *spaceprops[] = {
1319 "name", "avail", "used", "usedbysnapshots",
1320 "usedbydataset", "usedbyrefreservation",
1321 "usedbychildren", NULL
1325 for (i = 0; spaceprops[i]; i++) {
1326 if (addlist(hdl, spaceprops[i], listp, type))
1328 listp = &(*listp)->pl_next;
1331 if (addlist(hdl, props, listp, type))
1333 listp = &(*listp)->pl_next;
1345 zprop_free_list(zprop_list_t *pl)
1349 while (pl != NULL) {
1351 free(pl->pl_user_prop);
1357 typedef struct expand_data {
1358 zprop_list_t **last;
1359 libzfs_handle_t *hdl;
1364 zprop_expand_list_cb(int prop, void *cb)
1366 zprop_list_t *entry;
1367 expand_data_t *edp = cb;
1369 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1370 return (ZPROP_INVAL);
1372 entry->pl_prop = prop;
1373 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1374 entry->pl_all = B_TRUE;
1376 *(edp->last) = entry;
1377 edp->last = &entry->pl_next;
1379 return (ZPROP_CONT);
1383 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1385 zprop_list_t *entry;
1386 zprop_list_t **last;
1391 * If this is the very first time we've been called for an 'all'
1392 * specification, expand the list to include all native
1401 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1402 B_FALSE, type) == ZPROP_INVAL)
1406 * Add 'name' to the beginning of the list, which is handled
1409 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1412 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1414 entry->pl_width = zprop_width(entry->pl_prop,
1415 &entry->pl_fixed, type);
1416 entry->pl_all = B_TRUE;
1417 entry->pl_next = *plp;
1424 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1427 return (zprop_iter_common(func, cb, show_all, ordered, type));