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) 2012 by Delphix. All rights reserved.
28 * Internal utility routines for the ZFS library.
31 #include <sys/param.h>
32 #include <sys/linker.h>
33 #include <sys/module.h>
46 #include <sys/mnttab.h>
47 #include <sys/mntent.h>
48 #include <sys/types.h>
52 #include "libzfs_impl.h"
54 #include "zfeature_common.h"
59 libzfs_errno(libzfs_handle_t *hdl)
61 return (hdl->libzfs_error);
65 libzfs_error_action(libzfs_handle_t *hdl)
67 return (hdl->libzfs_action);
71 libzfs_error_description(libzfs_handle_t *hdl)
73 if (hdl->libzfs_desc[0] != '\0')
74 return (hdl->libzfs_desc);
76 switch (hdl->libzfs_error) {
78 return (dgettext(TEXT_DOMAIN, "out of memory"));
80 return (dgettext(TEXT_DOMAIN, "invalid property value"));
81 case EZFS_PROPREADONLY:
82 return (dgettext(TEXT_DOMAIN, "read-only property"));
84 return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
85 "datasets of this type"));
86 case EZFS_PROPNONINHERIT:
87 return (dgettext(TEXT_DOMAIN, "property cannot be inherited"));
89 return (dgettext(TEXT_DOMAIN, "invalid quota or reservation"));
91 return (dgettext(TEXT_DOMAIN, "operation not applicable to "
92 "datasets of this type"));
94 return (dgettext(TEXT_DOMAIN, "pool or dataset is busy"));
96 return (dgettext(TEXT_DOMAIN, "pool or dataset exists"));
98 return (dgettext(TEXT_DOMAIN, "no such pool or dataset"));
100 return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
101 case EZFS_DSREADONLY:
102 return (dgettext(TEXT_DOMAIN, "dataset is read-only"));
104 return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
106 case EZFS_INVALIDNAME:
107 return (dgettext(TEXT_DOMAIN, "invalid name"));
108 case EZFS_BADRESTORE:
109 return (dgettext(TEXT_DOMAIN, "unable to restore to "
112 return (dgettext(TEXT_DOMAIN, "backup failed"));
114 return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
116 return (dgettext(TEXT_DOMAIN, "no such device in pool"));
118 return (dgettext(TEXT_DOMAIN, "invalid device"));
119 case EZFS_NOREPLICAS:
120 return (dgettext(TEXT_DOMAIN, "no valid replicas"));
121 case EZFS_RESILVERING:
122 return (dgettext(TEXT_DOMAIN, "currently resilvering"));
123 case EZFS_BADVERSION:
124 return (dgettext(TEXT_DOMAIN, "unsupported version or "
126 case EZFS_POOLUNAVAIL:
127 return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
128 case EZFS_DEVOVERFLOW:
129 return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
131 return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
132 case EZFS_CROSSTARGET:
133 return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
136 return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
137 case EZFS_MOUNTFAILED:
138 return (dgettext(TEXT_DOMAIN, "mount failed"));
139 case EZFS_UMOUNTFAILED:
140 return (dgettext(TEXT_DOMAIN, "umount failed"));
141 case EZFS_UNSHARENFSFAILED:
142 return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
143 case EZFS_SHARENFSFAILED:
144 return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
145 case EZFS_UNSHARESMBFAILED:
146 return (dgettext(TEXT_DOMAIN, "smb remove share failed"));
147 case EZFS_SHARESMBFAILED:
148 return (dgettext(TEXT_DOMAIN, "smb add share failed"));
150 return (dgettext(TEXT_DOMAIN, "permission denied"));
152 return (dgettext(TEXT_DOMAIN, "out of space"));
154 return (dgettext(TEXT_DOMAIN, "bad address"));
156 return (dgettext(TEXT_DOMAIN, "I/O error"));
158 return (dgettext(TEXT_DOMAIN, "signal received"));
160 return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
162 case EZFS_INVALCONFIG:
163 return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
165 return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
167 return (dgettext(TEXT_DOMAIN, "no history available"));
169 return (dgettext(TEXT_DOMAIN, "failed to retrieve "
171 case EZFS_POOL_NOTSUP:
172 return (dgettext(TEXT_DOMAIN, "operation not supported "
173 "on this type of pool"));
174 case EZFS_POOL_INVALARG:
175 return (dgettext(TEXT_DOMAIN, "invalid argument for "
176 "this pool operation"));
177 case EZFS_NAMETOOLONG:
178 return (dgettext(TEXT_DOMAIN, "dataset name is too long"));
179 case EZFS_OPENFAILED:
180 return (dgettext(TEXT_DOMAIN, "open failed"));
182 return (dgettext(TEXT_DOMAIN,
183 "disk capacity information could not be retrieved"));
184 case EZFS_LABELFAILED:
185 return (dgettext(TEXT_DOMAIN, "write of label failed"));
187 return (dgettext(TEXT_DOMAIN, "invalid user/group"));
189 return (dgettext(TEXT_DOMAIN, "invalid permission"));
190 case EZFS_BADPERMSET:
191 return (dgettext(TEXT_DOMAIN, "invalid permission set name"));
192 case EZFS_NODELEGATION:
193 return (dgettext(TEXT_DOMAIN, "delegated administration is "
194 "disabled on pool"));
196 return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
198 return (dgettext(TEXT_DOMAIN, "device is in use as a cache"));
199 case EZFS_VDEVNOTSUP:
200 return (dgettext(TEXT_DOMAIN, "vdev specification is not "
203 return (dgettext(TEXT_DOMAIN, "operation not supported "
205 case EZFS_ACTIVE_SPARE:
206 return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
208 case EZFS_UNPLAYED_LOGS:
209 return (dgettext(TEXT_DOMAIN, "log device has unplayed intent "
211 case EZFS_REFTAG_RELE:
212 return (dgettext(TEXT_DOMAIN, "no such tag on this dataset"));
213 case EZFS_REFTAG_HOLD:
214 return (dgettext(TEXT_DOMAIN, "tag already exists on this "
216 case EZFS_TAGTOOLONG:
217 return (dgettext(TEXT_DOMAIN, "tag too long"));
218 case EZFS_PIPEFAILED:
219 return (dgettext(TEXT_DOMAIN, "pipe create failed"));
220 case EZFS_THREADCREATEFAILED:
221 return (dgettext(TEXT_DOMAIN, "thread create failed"));
222 case EZFS_POSTSPLIT_ONLINE:
223 return (dgettext(TEXT_DOMAIN, "disk was split from this pool "
226 return (dgettext(TEXT_DOMAIN, "currently scrubbing; "
227 "use 'zpool scrub -s' to cancel current scrub"));
229 return (dgettext(TEXT_DOMAIN, "there is no active scrub"));
231 return (dgettext(TEXT_DOMAIN, "unable to generate diffs"));
233 return (dgettext(TEXT_DOMAIN, "invalid diff data"));
234 case EZFS_POOLREADONLY:
235 return (dgettext(TEXT_DOMAIN, "pool is read-only"));
237 return (dgettext(TEXT_DOMAIN, "unknown error"));
239 assert(hdl->libzfs_error == 0);
240 return (dgettext(TEXT_DOMAIN, "no error"));
246 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
252 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
254 hdl->libzfs_desc_active = 1;
260 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
262 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
264 hdl->libzfs_error = error;
266 if (hdl->libzfs_desc_active)
267 hdl->libzfs_desc_active = 0;
269 hdl->libzfs_desc[0] = '\0';
271 if (hdl->libzfs_printerr) {
272 if (error == EZFS_UNKNOWN) {
273 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
274 "error: %s\n"), libzfs_error_description(hdl));
278 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
279 libzfs_error_description(hdl));
280 if (error == EZFS_NOMEM)
286 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
288 return (zfs_error_fmt(hdl, error, "%s", msg));
293 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
299 zfs_verror(hdl, error, fmt, ap);
307 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
313 zfs_verror(hdl, EZFS_PERM, fmt, ap);
317 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
321 zfs_verror(hdl, EZFS_IO, fmt, ap);
325 zfs_verror(hdl, EZFS_FAULT, fmt, ap);
329 zfs_verror(hdl, EZFS_INTR, fmt, ap);
337 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
339 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
344 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
350 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
359 zfs_verror(hdl, EZFS_IO, fmt, ap);
363 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
364 "dataset does not exist"));
365 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
370 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
374 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
375 "dataset already exists"));
376 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
380 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
382 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
385 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
388 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
391 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
394 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
395 "pool I/O is currently suspended"));
396 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
399 zfs_error_aux(hdl, strerror(error));
400 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
409 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
411 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
416 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
422 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
429 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
434 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
435 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
439 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
440 "pool already exists"));
441 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
445 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
446 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
450 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
451 "one or more devices is currently unavailable"));
452 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
456 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
460 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
464 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
469 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
473 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
474 "pool I/O is currently suspended"));
475 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
479 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
483 zfs_error_aux(hdl, strerror(error));
484 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
492 * Display an out of memory error message and abort the current program.
495 no_memory(libzfs_handle_t *hdl)
497 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
501 * A safe form of malloc() which will die if the allocation fails.
504 zfs_alloc(libzfs_handle_t *hdl, size_t size)
508 if ((data = calloc(1, size)) == NULL)
509 (void) no_memory(hdl);
515 * A safe form of asprintf() which will die if the allocation fails.
519 zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...)
527 err = vasprintf(&ret, fmt, ap);
532 (void) no_memory(hdl);
538 * A safe form of realloc(), which also zeroes newly allocated space.
541 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
545 if ((ret = realloc(ptr, newsize)) == NULL) {
546 (void) no_memory(hdl);
550 bzero((char *)ret + oldsize, (newsize - oldsize));
555 * A safe form of strdup() which will die if the allocation fails.
558 zfs_strdup(libzfs_handle_t *hdl, const char *str)
562 if ((ret = strdup(str)) == NULL)
563 (void) no_memory(hdl);
569 * Convert a number to an appropriately human-readable output.
572 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
583 u = " KMGTPE"[index];
586 (void) snprintf(buf, buflen, "%llu", n);
587 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
589 * If this is an even multiple of the base, always display
590 * without any decimal precision.
592 (void) snprintf(buf, buflen, "%llu%c", n, u);
595 * We want to choose a precision that reflects the best choice
596 * for fitting in 5 characters. This can get rather tricky when
597 * we have numbers that are very close to an order of magnitude.
598 * For example, when displaying 10239 (which is really 9.999K),
599 * we want only a single place of precision for 10.0K. We could
600 * develop some complex heuristics for this, but it's much
601 * easier just to try each combination in turn.
604 for (i = 2; i >= 0; i--) {
605 if (snprintf(buf, buflen, "%.*f%c", i,
606 (double)num / (1ULL << 10 * index), u) <= 5)
613 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
615 hdl->libzfs_printerr = printerr;
623 if (modfind("zfs") < 0) {
624 /* Not present in kernel, try loading it. */
625 if (kldload("zfs") < 0 || modfind("zfs") < 0) {
636 libzfs_handle_t *hdl;
638 if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) {
642 if (libzfs_load() < 0) {
647 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
652 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
653 (void) close(hdl->libzfs_fd);
658 hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r");
662 zpool_feature_init();
663 libzfs_mnttab_init(hdl);
669 libzfs_fini(libzfs_handle_t *hdl)
671 (void) close(hdl->libzfs_fd);
672 if (hdl->libzfs_mnttab)
673 (void) fclose(hdl->libzfs_mnttab);
674 if (hdl->libzfs_sharetab)
675 (void) fclose(hdl->libzfs_sharetab);
676 zfs_uninit_libshare(hdl);
677 if (hdl->libzfs_log_str)
678 (void) free(hdl->libzfs_log_str);
679 zpool_free_handles(hdl);
681 libzfs_fru_clear(hdl, B_TRUE);
683 namespace_clear(hdl);
684 libzfs_mnttab_fini(hdl);
689 zpool_get_handle(zpool_handle_t *zhp)
691 return (zhp->zpool_hdl);
695 zfs_get_handle(zfs_handle_t *zhp)
697 return (zhp->zfs_hdl);
701 zfs_get_pool_handle(const zfs_handle_t *zhp)
703 return (zhp->zpool_hdl);
707 * Given a name, determine whether or not it's a valid path
708 * (starts with '/' or "./"). If so, walk the mnttab trying
709 * to match the device number. If not, treat the path as an
713 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
715 struct stat64 statbuf;
716 struct extmnttab entry;
719 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
721 * It's not a valid path, assume it's a name of type 'argtype'.
723 return (zfs_open(hdl, path, argtype));
726 if (stat64(path, &statbuf) != 0) {
727 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
732 rewind(hdl->libzfs_mnttab);
733 while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) {
734 if (makedevice(entry.mnt_major, entry.mnt_minor) ==
743 ret = statfs(path, &sfs);
745 statfs2mnttab(&sfs, &entry);
747 (void) fprintf(stderr, "%s: %s\n", path,
756 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
757 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
762 return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
766 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
770 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
774 zc->zc_nvlist_dst_size = len;
775 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
776 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == 0)
783 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
784 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
785 * filled in by the kernel to indicate the actual required size.
788 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
790 free((void *)(uintptr_t)zc->zc_nvlist_dst);
791 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
792 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
800 * Called to free the src and dst nvlists stored in the command structure.
803 zcmd_free_nvlists(zfs_cmd_t *zc)
805 free((void *)(uintptr_t)zc->zc_nvlist_conf);
806 free((void *)(uintptr_t)zc->zc_nvlist_src);
807 free((void *)(uintptr_t)zc->zc_nvlist_dst);
811 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
817 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
819 if ((packed = zfs_alloc(hdl, len)) == NULL)
822 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
824 *outnv = (uint64_t)(uintptr_t)packed;
831 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
833 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
834 &zc->zc_nvlist_conf_size, nvl));
838 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
840 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
841 &zc->zc_nvlist_src_size, nvl));
845 * Unpacks an nvlist from the ZFS ioctl command structure.
848 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
850 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
851 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
852 return (no_memory(hdl));
858 zfs_ioctl(libzfs_handle_t *hdl, unsigned long request, zfs_cmd_t *zc)
862 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
863 error = ioctl(hdl->libzfs_fd, request, zc);
864 if (hdl->libzfs_log_str) {
865 free(hdl->libzfs_log_str);
866 hdl->libzfs_log_str = NULL;
874 * ================================================================
875 * API shared by zfs and zpool property management
876 * ================================================================
880 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
882 zprop_list_t *pl = cbp->cb_proplist;
887 cbp->cb_first = B_FALSE;
888 if (cbp->cb_scripted)
892 * Start with the length of the column headers.
894 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
895 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
897 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
899 cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN,
901 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
904 /* first property is always NAME */
905 assert(cbp->cb_proplist->pl_prop ==
906 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
909 * Go through and calculate the widths for each column. For the
910 * 'source' column, we kludge it up by taking the worst-case scenario of
911 * inheriting from the longest name. This is acceptable because in the
912 * majority of cases 'SOURCE' is the last column displayed, and we don't
913 * use the width anyway. Note that the 'VALUE' column can be oversized,
914 * if the name of the property is much longer than any values we find.
916 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
920 if (pl->pl_prop != ZPROP_INVAL) {
921 const char *propname = (type == ZFS_TYPE_POOL) ?
922 zpool_prop_to_name(pl->pl_prop) :
923 zfs_prop_to_name(pl->pl_prop);
925 len = strlen(propname);
926 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
927 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
929 len = strlen(pl->pl_user_prop);
930 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
931 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
935 * 'VALUE' column. The first property is always the 'name'
936 * property that was tacked on either by /sbin/zfs's
937 * zfs_do_get() or when calling zprop_expand_list(), so we
938 * ignore its width. If the user specified the name property
939 * to display, then it will be later in the list in any case.
941 if (pl != cbp->cb_proplist &&
942 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
943 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
945 /* 'RECEIVED' column. */
946 if (pl != cbp->cb_proplist &&
947 pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD])
948 cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width;
951 * 'NAME' and 'SOURCE' columns
953 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
955 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
956 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
957 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
958 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
963 * Now go through and print the headers.
965 for (i = 0; i < ZFS_GET_NCOLS; i++) {
966 switch (cbp->cb_columns[i]) {
968 title = dgettext(TEXT_DOMAIN, "NAME");
970 case GET_COL_PROPERTY:
971 title = dgettext(TEXT_DOMAIN, "PROPERTY");
974 title = dgettext(TEXT_DOMAIN, "VALUE");
977 title = dgettext(TEXT_DOMAIN, "RECEIVED");
980 title = dgettext(TEXT_DOMAIN, "SOURCE");
987 if (i == (ZFS_GET_NCOLS - 1) ||
988 cbp->cb_columns[i + 1] == GET_COL_NONE)
989 (void) printf("%s", title);
991 (void) printf("%-*s ",
992 cbp->cb_colwidths[cbp->cb_columns[i]],
1000 * Display a single line of output, according to the settings in the callback
1004 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
1005 const char *propname, const char *value, zprop_source_t sourcetype,
1006 const char *source, const char *recvd_value)
1013 * Ignore those source types that the user has chosen to ignore.
1015 if ((sourcetype & cbp->cb_sources) == 0)
1019 zprop_print_headers(cbp, cbp->cb_type);
1021 for (i = 0; i < ZFS_GET_NCOLS; i++) {
1022 switch (cbp->cb_columns[i]) {
1027 case GET_COL_PROPERTY:
1035 case GET_COL_SOURCE:
1036 switch (sourcetype) {
1037 case ZPROP_SRC_NONE:
1041 case ZPROP_SRC_DEFAULT:
1045 case ZPROP_SRC_LOCAL:
1049 case ZPROP_SRC_TEMPORARY:
1053 case ZPROP_SRC_INHERITED:
1054 (void) snprintf(buf, sizeof (buf),
1055 "inherited from %s", source);
1058 case ZPROP_SRC_RECEIVED:
1065 str = (recvd_value == NULL ? "-" : recvd_value);
1072 if (cbp->cb_columns[i + 1] == GET_COL_NONE)
1073 (void) printf("%s", str);
1074 else if (cbp->cb_scripted)
1075 (void) printf("%s\t", str);
1077 (void) printf("%-*s ",
1078 cbp->cb_colwidths[cbp->cb_columns[i]],
1082 (void) printf("\n");
1086 * Given a numeric suffix, convert the value into a number of bits that the
1087 * resulting value must be shifted.
1090 str2shift(libzfs_handle_t *hdl, const char *buf)
1092 const char *ends = "BKMGTPEZ";
1097 for (i = 0; i < strlen(ends); i++) {
1098 if (toupper(buf[0]) == ends[i])
1101 if (i == strlen(ends)) {
1102 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1103 "invalid numeric suffix '%s'"), buf);
1108 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1109 * allow 'BB' - that's just weird.
1111 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1112 toupper(buf[0]) != 'B'))
1115 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1116 "invalid numeric suffix '%s'"), buf);
1121 * Convert a string of the form '100G' into a real number. Used when setting
1122 * properties or creating a volume. 'buf' is used to place an extended error
1123 * message for the caller to use.
1126 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1133 /* Check to see if this looks like a number. */
1134 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1136 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1137 "bad numeric value '%s'"), value);
1141 /* Rely on strtoull() to process the numeric portion. */
1143 *num = strtoull(value, &end, 10);
1146 * Check for ERANGE, which indicates that the value is too large to fit
1147 * in a 64-bit value.
1149 if (errno == ERANGE) {
1151 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1152 "numeric value is too large"));
1157 * If we have a decimal value, then do the computation with floating
1158 * point arithmetic. Otherwise, use standard arithmetic.
1161 double fval = strtod(value, &end);
1163 if ((shift = str2shift(hdl, end)) == -1)
1166 fval *= pow(2, shift);
1168 if (fval > UINT64_MAX) {
1170 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1171 "numeric value is too large"));
1175 *num = (uint64_t)fval;
1177 if ((shift = str2shift(hdl, end)) == -1)
1180 /* Check for overflow */
1181 if (shift >= 64 || (*num << shift) >> shift != *num) {
1183 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1184 "numeric value is too large"));
1195 * Given a propname=value nvpair to set, parse any numeric properties
1196 * (index, boolean, etc) if they are specified as strings and add the
1197 * resulting nvpair to the returned nvlist.
1199 * At the DSL layer, all properties are either 64-bit numbers or strings.
1200 * We want the user to be able to ignore this fact and specify properties
1201 * as native values (numbers, for example) or as strings (to simplify
1202 * command line utilities). This also handles converting index types
1203 * (compression, checksum, etc) from strings to their on-disk index.
1206 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1207 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1210 data_type_t datatype = nvpair_type(elem);
1211 zprop_type_t proptype;
1212 const char *propname;
1214 boolean_t isnone = B_FALSE;
1216 if (type == ZFS_TYPE_POOL) {
1217 proptype = zpool_prop_get_type(prop);
1218 propname = zpool_prop_to_name(prop);
1220 proptype = zfs_prop_get_type(prop);
1221 propname = zfs_prop_to_name(prop);
1225 * Convert any properties to the internal DSL value types.
1231 case PROP_TYPE_STRING:
1232 if (datatype != DATA_TYPE_STRING) {
1233 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1234 "'%s' must be a string"), nvpair_name(elem));
1237 (void) nvpair_value_string(elem, svalp);
1238 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1239 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1240 "'%s' is too long"), nvpair_name(elem));
1245 case PROP_TYPE_NUMBER:
1246 if (datatype == DATA_TYPE_STRING) {
1247 (void) nvpair_value_string(elem, &value);
1248 if (strcmp(value, "none") == 0) {
1250 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1254 } else if (datatype == DATA_TYPE_UINT64) {
1255 (void) nvpair_value_uint64(elem, ivalp);
1257 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1258 "'%s' must be a number"), nvpair_name(elem));
1263 * Quota special: force 'none' and don't allow 0.
1265 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1266 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1267 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1268 "use 'none' to disable quota/refquota"));
1273 case PROP_TYPE_INDEX:
1274 if (datatype != DATA_TYPE_STRING) {
1275 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1276 "'%s' must be a string"), nvpair_name(elem));
1280 (void) nvpair_value_string(elem, &value);
1282 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1283 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1284 "'%s' must be one of '%s'"), propname,
1285 zprop_values(prop, type));
1295 * Add the result to our return set of properties.
1297 if (*svalp != NULL) {
1298 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1299 (void) no_memory(hdl);
1303 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1304 (void) no_memory(hdl);
1311 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1316 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1320 zprop_list_t *entry;
1322 prop = zprop_name_to_prop(propname, type);
1324 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1328 * When no property table entry can be found, return failure if
1329 * this is a pool property or if this isn't a user-defined
1332 if (prop == ZPROP_INVAL && ((type == ZFS_TYPE_POOL &&
1333 !zpool_prop_feature(propname) &&
1334 !zpool_prop_unsupported(propname)) ||
1335 (type == ZFS_TYPE_DATASET && !zfs_prop_user(propname) &&
1336 !zfs_prop_userquota(propname) && !zfs_prop_written(propname)))) {
1337 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1338 "invalid property '%s'"), propname);
1339 return (zfs_error(hdl, EZFS_BADPROP,
1340 dgettext(TEXT_DOMAIN, "bad property list")));
1343 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1346 entry->pl_prop = prop;
1347 if (prop == ZPROP_INVAL) {
1348 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) ==
1353 entry->pl_width = strlen(propname);
1355 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1365 * Given a comma-separated list of properties, construct a property list
1366 * containing both user-defined and native properties. This function will
1367 * return a NULL list if 'all' is specified, which can later be expanded
1368 * by zprop_expand_list().
1371 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1377 * If 'all' is specified, return a NULL list.
1379 if (strcmp(props, "all") == 0)
1383 * If no props were specified, return an error.
1385 if (props[0] == '\0') {
1386 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1387 "no properties specified"));
1388 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1389 "bad property list")));
1393 * It would be nice to use getsubopt() here, but the inclusion of column
1394 * aliases makes this more effort than it's worth.
1396 while (*props != '\0') {
1401 if ((p = strchr(props, ',')) == NULL) {
1402 len = strlen(props);
1409 * Check for empty options.
1412 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1413 "empty property name"));
1414 return (zfs_error(hdl, EZFS_BADPROP,
1415 dgettext(TEXT_DOMAIN, "bad property list")));
1419 * Check all regular property names.
1424 if (strcmp(props, "space") == 0) {
1425 static char *spaceprops[] = {
1426 "name", "avail", "used", "usedbysnapshots",
1427 "usedbydataset", "usedbyrefreservation",
1428 "usedbychildren", NULL
1432 for (i = 0; spaceprops[i]; i++) {
1433 if (addlist(hdl, spaceprops[i], listp, type))
1435 listp = &(*listp)->pl_next;
1438 if (addlist(hdl, props, listp, type))
1440 listp = &(*listp)->pl_next;
1452 zprop_free_list(zprop_list_t *pl)
1456 while (pl != NULL) {
1458 free(pl->pl_user_prop);
1464 typedef struct expand_data {
1465 zprop_list_t **last;
1466 libzfs_handle_t *hdl;
1471 zprop_expand_list_cb(int prop, void *cb)
1473 zprop_list_t *entry;
1474 expand_data_t *edp = cb;
1476 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1477 return (ZPROP_INVAL);
1479 entry->pl_prop = prop;
1480 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1481 entry->pl_all = B_TRUE;
1483 *(edp->last) = entry;
1484 edp->last = &entry->pl_next;
1486 return (ZPROP_CONT);
1490 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1492 zprop_list_t *entry;
1493 zprop_list_t **last;
1498 * If this is the very first time we've been called for an 'all'
1499 * specification, expand the list to include all native
1508 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1509 B_FALSE, type) == ZPROP_INVAL)
1513 * Add 'name' to the beginning of the list, which is handled
1516 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1519 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1521 entry->pl_width = zprop_width(entry->pl_prop,
1522 &entry->pl_fixed, type);
1523 entry->pl_all = B_TRUE;
1524 entry->pl_next = *plp;
1531 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1534 return (zprop_iter_common(func, cb, show_all, ordered, type));