4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011 by Delphix. All rights reserved.
27 * Internal utility routines for the ZFS library.
30 #include <sys/param.h>
31 #include <sys/linker.h>
32 #include <sys/module.h>
45 #include <sys/mnttab.h>
46 #include <sys/mntent.h>
47 #include <sys/types.h>
51 #include "libzfs_impl.h"
57 libzfs_errno(libzfs_handle_t *hdl)
59 return (hdl->libzfs_error);
63 libzfs_error_action(libzfs_handle_t *hdl)
65 return (hdl->libzfs_action);
69 libzfs_error_description(libzfs_handle_t *hdl)
71 if (hdl->libzfs_desc[0] != '\0')
72 return (hdl->libzfs_desc);
74 switch (hdl->libzfs_error) {
76 return (dgettext(TEXT_DOMAIN, "out of memory"));
78 return (dgettext(TEXT_DOMAIN, "invalid property value"));
79 case EZFS_PROPREADONLY:
80 return (dgettext(TEXT_DOMAIN, "read-only property"));
82 return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
83 "datasets of this type"));
84 case EZFS_PROPNONINHERIT:
85 return (dgettext(TEXT_DOMAIN, "property cannot be inherited"));
87 return (dgettext(TEXT_DOMAIN, "invalid quota or reservation"));
89 return (dgettext(TEXT_DOMAIN, "operation not applicable to "
90 "datasets of this type"));
92 return (dgettext(TEXT_DOMAIN, "pool or dataset is busy"));
94 return (dgettext(TEXT_DOMAIN, "pool or dataset exists"));
96 return (dgettext(TEXT_DOMAIN, "no such pool or dataset"));
98 return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
100 return (dgettext(TEXT_DOMAIN, "dataset is read-only"));
102 return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
104 case EZFS_INVALIDNAME:
105 return (dgettext(TEXT_DOMAIN, "invalid name"));
106 case EZFS_BADRESTORE:
107 return (dgettext(TEXT_DOMAIN, "unable to restore to "
110 return (dgettext(TEXT_DOMAIN, "backup failed"));
112 return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
114 return (dgettext(TEXT_DOMAIN, "no such device in pool"));
116 return (dgettext(TEXT_DOMAIN, "invalid device"));
117 case EZFS_NOREPLICAS:
118 return (dgettext(TEXT_DOMAIN, "no valid replicas"));
119 case EZFS_RESILVERING:
120 return (dgettext(TEXT_DOMAIN, "currently resilvering"));
121 case EZFS_BADVERSION:
122 return (dgettext(TEXT_DOMAIN, "unsupported version"));
123 case EZFS_POOLUNAVAIL:
124 return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
125 case EZFS_DEVOVERFLOW:
126 return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
128 return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
129 case EZFS_CROSSTARGET:
130 return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
133 return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
134 case EZFS_MOUNTFAILED:
135 return (dgettext(TEXT_DOMAIN, "mount failed"));
136 case EZFS_UMOUNTFAILED:
137 return (dgettext(TEXT_DOMAIN, "umount failed"));
138 case EZFS_UNSHARENFSFAILED:
139 return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
140 case EZFS_SHARENFSFAILED:
141 return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
142 case EZFS_UNSHARESMBFAILED:
143 return (dgettext(TEXT_DOMAIN, "smb remove share failed"));
144 case EZFS_SHARESMBFAILED:
145 return (dgettext(TEXT_DOMAIN, "smb add share failed"));
147 return (dgettext(TEXT_DOMAIN, "permission denied"));
149 return (dgettext(TEXT_DOMAIN, "out of space"));
151 return (dgettext(TEXT_DOMAIN, "bad address"));
153 return (dgettext(TEXT_DOMAIN, "I/O error"));
155 return (dgettext(TEXT_DOMAIN, "signal received"));
157 return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
159 case EZFS_INVALCONFIG:
160 return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
162 return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
164 return (dgettext(TEXT_DOMAIN, "no history available"));
166 return (dgettext(TEXT_DOMAIN, "failed to retrieve "
168 case EZFS_POOL_NOTSUP:
169 return (dgettext(TEXT_DOMAIN, "operation not supported "
170 "on this type of pool"));
171 case EZFS_POOL_INVALARG:
172 return (dgettext(TEXT_DOMAIN, "invalid argument for "
173 "this pool operation"));
174 case EZFS_NAMETOOLONG:
175 return (dgettext(TEXT_DOMAIN, "dataset name is too long"));
176 case EZFS_OPENFAILED:
177 return (dgettext(TEXT_DOMAIN, "open failed"));
179 return (dgettext(TEXT_DOMAIN,
180 "disk capacity information could not be retrieved"));
181 case EZFS_LABELFAILED:
182 return (dgettext(TEXT_DOMAIN, "write of label failed"));
184 return (dgettext(TEXT_DOMAIN, "invalid user/group"));
186 return (dgettext(TEXT_DOMAIN, "invalid permission"));
187 case EZFS_BADPERMSET:
188 return (dgettext(TEXT_DOMAIN, "invalid permission set name"));
189 case EZFS_NODELEGATION:
190 return (dgettext(TEXT_DOMAIN, "delegated administration is "
191 "disabled on pool"));
193 return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
195 return (dgettext(TEXT_DOMAIN, "device is in use as a cache"));
196 case EZFS_VDEVNOTSUP:
197 return (dgettext(TEXT_DOMAIN, "vdev specification is not "
200 return (dgettext(TEXT_DOMAIN, "operation not supported "
202 case EZFS_ACTIVE_SPARE:
203 return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
205 case EZFS_UNPLAYED_LOGS:
206 return (dgettext(TEXT_DOMAIN, "log device has unplayed intent "
208 case EZFS_REFTAG_RELE:
209 return (dgettext(TEXT_DOMAIN, "no such tag on this dataset"));
210 case EZFS_REFTAG_HOLD:
211 return (dgettext(TEXT_DOMAIN, "tag already exists on this "
213 case EZFS_TAGTOOLONG:
214 return (dgettext(TEXT_DOMAIN, "tag too long"));
215 case EZFS_PIPEFAILED:
216 return (dgettext(TEXT_DOMAIN, "pipe create failed"));
217 case EZFS_THREADCREATEFAILED:
218 return (dgettext(TEXT_DOMAIN, "thread create failed"));
219 case EZFS_POSTSPLIT_ONLINE:
220 return (dgettext(TEXT_DOMAIN, "disk was split from this pool "
223 return (dgettext(TEXT_DOMAIN, "currently scrubbing; "
224 "use 'zpool scrub -s' to cancel current scrub"));
226 return (dgettext(TEXT_DOMAIN, "there is no active scrub"));
228 return (dgettext(TEXT_DOMAIN, "unable to generate diffs"));
230 return (dgettext(TEXT_DOMAIN, "invalid diff data"));
231 case EZFS_POOLREADONLY:
232 return (dgettext(TEXT_DOMAIN, "pool is read-only"));
234 return (dgettext(TEXT_DOMAIN, "unknown error"));
236 assert(hdl->libzfs_error == 0);
237 return (dgettext(TEXT_DOMAIN, "no error"));
243 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
249 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
251 hdl->libzfs_desc_active = 1;
257 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
259 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
261 hdl->libzfs_error = error;
263 if (hdl->libzfs_desc_active)
264 hdl->libzfs_desc_active = 0;
266 hdl->libzfs_desc[0] = '\0';
268 if (hdl->libzfs_printerr) {
269 if (error == EZFS_UNKNOWN) {
270 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
271 "error: %s\n"), libzfs_error_description(hdl));
275 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
276 libzfs_error_description(hdl));
277 if (error == EZFS_NOMEM)
283 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
285 return (zfs_error_fmt(hdl, error, "%s", msg));
290 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
296 zfs_verror(hdl, error, fmt, ap);
304 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
310 zfs_verror(hdl, EZFS_PERM, fmt, ap);
314 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
318 zfs_verror(hdl, EZFS_IO, fmt, ap);
322 zfs_verror(hdl, EZFS_FAULT, fmt, ap);
326 zfs_verror(hdl, EZFS_INTR, fmt, ap);
334 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
336 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
341 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
347 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
356 zfs_verror(hdl, EZFS_IO, fmt, ap);
360 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
361 "dataset does not exist"));
362 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
367 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
371 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
372 "dataset already exists"));
373 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
377 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
379 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
382 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
385 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
388 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
391 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
392 "pool I/O is currently suspended"));
393 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
396 zfs_error_aux(hdl, strerror(error));
397 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
406 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
408 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
413 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
419 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
426 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
431 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
432 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
436 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
437 "pool already exists"));
438 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
442 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
443 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
447 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
448 "one or more devices is currently unavailable"));
449 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
453 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
457 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
461 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
466 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
470 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
471 "pool I/O is currently suspended"));
472 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
476 zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
480 zfs_error_aux(hdl, strerror(error));
481 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
489 * Display an out of memory error message and abort the current program.
492 no_memory(libzfs_handle_t *hdl)
494 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
498 * A safe form of malloc() which will die if the allocation fails.
501 zfs_alloc(libzfs_handle_t *hdl, size_t size)
505 if ((data = calloc(1, size)) == NULL)
506 (void) no_memory(hdl);
512 * A safe form of asprintf() which will die if the allocation fails.
516 zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...)
524 err = vasprintf(&ret, fmt, ap);
529 (void) no_memory(hdl);
535 * A safe form of realloc(), which also zeroes newly allocated space.
538 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
542 if ((ret = realloc(ptr, newsize)) == NULL) {
543 (void) no_memory(hdl);
547 bzero((char *)ret + oldsize, (newsize - oldsize));
552 * A safe form of strdup() which will die if the allocation fails.
555 zfs_strdup(libzfs_handle_t *hdl, const char *str)
559 if ((ret = strdup(str)) == NULL)
560 (void) no_memory(hdl);
566 * Convert a number to an appropriately human-readable output.
569 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
580 u = " KMGTPE"[index];
583 (void) snprintf(buf, buflen, "%llu", n);
584 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
586 * If this is an even multiple of the base, always display
587 * without any decimal precision.
589 (void) snprintf(buf, buflen, "%llu%c", n, u);
592 * We want to choose a precision that reflects the best choice
593 * for fitting in 5 characters. This can get rather tricky when
594 * we have numbers that are very close to an order of magnitude.
595 * For example, when displaying 10239 (which is really 9.999K),
596 * we want only a single place of precision for 10.0K. We could
597 * develop some complex heuristics for this, but it's much
598 * easier just to try each combination in turn.
601 for (i = 2; i >= 0; i--) {
602 if (snprintf(buf, buflen, "%.*f%c", i,
603 (double)num / (1ULL << 10 * index), u) <= 5)
610 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
612 hdl->libzfs_printerr = printerr;
620 if (modfind("zfs") < 0) {
621 /* Not present in kernel, try loading it. */
622 if (kldload("zfs") < 0 || modfind("zfs") < 0) {
633 libzfs_handle_t *hdl;
635 if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) {
639 if (libzfs_load() < 0) {
644 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
649 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
650 (void) close(hdl->libzfs_fd);
655 hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r");
659 libzfs_mnttab_init(hdl);
665 libzfs_fini(libzfs_handle_t *hdl)
667 (void) close(hdl->libzfs_fd);
668 if (hdl->libzfs_mnttab)
669 (void) fclose(hdl->libzfs_mnttab);
670 if (hdl->libzfs_sharetab)
671 (void) fclose(hdl->libzfs_sharetab);
672 zfs_uninit_libshare(hdl);
673 if (hdl->libzfs_log_str)
674 (void) free(hdl->libzfs_log_str);
675 zpool_free_handles(hdl);
677 libzfs_fru_clear(hdl, B_TRUE);
679 namespace_clear(hdl);
680 libzfs_mnttab_fini(hdl);
685 zpool_get_handle(zpool_handle_t *zhp)
687 return (zhp->zpool_hdl);
691 zfs_get_handle(zfs_handle_t *zhp)
693 return (zhp->zfs_hdl);
697 zfs_get_pool_handle(const zfs_handle_t *zhp)
699 return (zhp->zpool_hdl);
703 * Given a name, determine whether or not it's a valid path
704 * (starts with '/' or "./"). If so, walk the mnttab trying
705 * to match the device number. If not, treat the path as an
709 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
711 struct stat64 statbuf;
712 struct extmnttab entry;
715 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
717 * It's not a valid path, assume it's a name of type 'argtype'.
719 return (zfs_open(hdl, path, argtype));
722 if (stat64(path, &statbuf) != 0) {
723 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
728 rewind(hdl->libzfs_mnttab);
729 while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) {
730 if (makedevice(entry.mnt_major, entry.mnt_minor) ==
739 ret = statfs(path, &sfs);
741 statfs2mnttab(&sfs, &entry);
743 (void) fprintf(stderr, "%s: %s\n", path,
752 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
753 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
758 return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
762 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
766 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
770 zc->zc_nvlist_dst_size = len;
771 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
772 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == 0)
779 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
780 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
781 * filled in by the kernel to indicate the actual required size.
784 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
786 free((void *)(uintptr_t)zc->zc_nvlist_dst);
787 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
788 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
796 * Called to free the src and dst nvlists stored in the command structure.
799 zcmd_free_nvlists(zfs_cmd_t *zc)
801 free((void *)(uintptr_t)zc->zc_nvlist_conf);
802 free((void *)(uintptr_t)zc->zc_nvlist_src);
803 free((void *)(uintptr_t)zc->zc_nvlist_dst);
807 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
813 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
815 if ((packed = zfs_alloc(hdl, len)) == NULL)
818 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
820 *outnv = (uint64_t)(uintptr_t)packed;
827 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
829 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
830 &zc->zc_nvlist_conf_size, nvl));
834 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
836 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
837 &zc->zc_nvlist_src_size, nvl));
841 * Unpacks an nvlist from the ZFS ioctl command structure.
844 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
846 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
847 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
848 return (no_memory(hdl));
854 zfs_ioctl(libzfs_handle_t *hdl, unsigned long request, zfs_cmd_t *zc)
858 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
859 error = ioctl(hdl->libzfs_fd, request, zc);
860 if (hdl->libzfs_log_str) {
861 free(hdl->libzfs_log_str);
862 hdl->libzfs_log_str = NULL;
870 * ================================================================
871 * API shared by zfs and zpool property management
872 * ================================================================
876 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
878 zprop_list_t *pl = cbp->cb_proplist;
883 cbp->cb_first = B_FALSE;
884 if (cbp->cb_scripted)
888 * Start with the length of the column headers.
890 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
891 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
893 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
895 cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN,
897 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
900 /* first property is always NAME */
901 assert(cbp->cb_proplist->pl_prop ==
902 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
905 * Go through and calculate the widths for each column. For the
906 * 'source' column, we kludge it up by taking the worst-case scenario of
907 * inheriting from the longest name. This is acceptable because in the
908 * majority of cases 'SOURCE' is the last column displayed, and we don't
909 * use the width anyway. Note that the 'VALUE' column can be oversized,
910 * if the name of the property is much longer than any values we find.
912 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
916 if (pl->pl_prop != ZPROP_INVAL) {
917 const char *propname = (type == ZFS_TYPE_POOL) ?
918 zpool_prop_to_name(pl->pl_prop) :
919 zfs_prop_to_name(pl->pl_prop);
921 len = strlen(propname);
922 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
923 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
925 len = strlen(pl->pl_user_prop);
926 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
927 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
931 * 'VALUE' column. The first property is always the 'name'
932 * property that was tacked on either by /sbin/zfs's
933 * zfs_do_get() or when calling zprop_expand_list(), so we
934 * ignore its width. If the user specified the name property
935 * to display, then it will be later in the list in any case.
937 if (pl != cbp->cb_proplist &&
938 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
939 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
941 /* 'RECEIVED' column. */
942 if (pl != cbp->cb_proplist &&
943 pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD])
944 cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width;
947 * 'NAME' and 'SOURCE' columns
949 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
951 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
952 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
953 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
954 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
959 * Now go through and print the headers.
961 for (i = 0; i < ZFS_GET_NCOLS; i++) {
962 switch (cbp->cb_columns[i]) {
964 title = dgettext(TEXT_DOMAIN, "NAME");
966 case GET_COL_PROPERTY:
967 title = dgettext(TEXT_DOMAIN, "PROPERTY");
970 title = dgettext(TEXT_DOMAIN, "VALUE");
973 title = dgettext(TEXT_DOMAIN, "RECEIVED");
976 title = dgettext(TEXT_DOMAIN, "SOURCE");
983 if (i == (ZFS_GET_NCOLS - 1) ||
984 cbp->cb_columns[i + 1] == GET_COL_NONE)
985 (void) printf("%s", title);
987 (void) printf("%-*s ",
988 cbp->cb_colwidths[cbp->cb_columns[i]],
996 * Display a single line of output, according to the settings in the callback
1000 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
1001 const char *propname, const char *value, zprop_source_t sourcetype,
1002 const char *source, const char *recvd_value)
1009 * Ignore those source types that the user has chosen to ignore.
1011 if ((sourcetype & cbp->cb_sources) == 0)
1015 zprop_print_headers(cbp, cbp->cb_type);
1017 for (i = 0; i < ZFS_GET_NCOLS; i++) {
1018 switch (cbp->cb_columns[i]) {
1023 case GET_COL_PROPERTY:
1031 case GET_COL_SOURCE:
1032 switch (sourcetype) {
1033 case ZPROP_SRC_NONE:
1037 case ZPROP_SRC_DEFAULT:
1041 case ZPROP_SRC_LOCAL:
1045 case ZPROP_SRC_TEMPORARY:
1049 case ZPROP_SRC_INHERITED:
1050 (void) snprintf(buf, sizeof (buf),
1051 "inherited from %s", source);
1054 case ZPROP_SRC_RECEIVED:
1061 str = (recvd_value == NULL ? "-" : recvd_value);
1068 if (cbp->cb_columns[i + 1] == GET_COL_NONE)
1069 (void) printf("%s", str);
1070 else if (cbp->cb_scripted)
1071 (void) printf("%s\t", str);
1073 (void) printf("%-*s ",
1074 cbp->cb_colwidths[cbp->cb_columns[i]],
1078 (void) printf("\n");
1082 * Given a numeric suffix, convert the value into a number of bits that the
1083 * resulting value must be shifted.
1086 str2shift(libzfs_handle_t *hdl, const char *buf)
1088 const char *ends = "BKMGTPEZ";
1093 for (i = 0; i < strlen(ends); i++) {
1094 if (toupper(buf[0]) == ends[i])
1097 if (i == strlen(ends)) {
1098 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1099 "invalid numeric suffix '%s'"), buf);
1104 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1105 * allow 'BB' - that's just weird.
1107 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1108 toupper(buf[0]) != 'B'))
1111 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1112 "invalid numeric suffix '%s'"), buf);
1117 * Convert a string of the form '100G' into a real number. Used when setting
1118 * properties or creating a volume. 'buf' is used to place an extended error
1119 * message for the caller to use.
1122 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1129 /* Check to see if this looks like a number. */
1130 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1132 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1133 "bad numeric value '%s'"), value);
1137 /* Rely on strtoull() to process the numeric portion. */
1139 *num = strtoull(value, &end, 10);
1142 * Check for ERANGE, which indicates that the value is too large to fit
1143 * in a 64-bit value.
1145 if (errno == ERANGE) {
1147 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1148 "numeric value is too large"));
1153 * If we have a decimal value, then do the computation with floating
1154 * point arithmetic. Otherwise, use standard arithmetic.
1157 double fval = strtod(value, &end);
1159 if ((shift = str2shift(hdl, end)) == -1)
1162 fval *= pow(2, shift);
1164 if (fval > UINT64_MAX) {
1166 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1167 "numeric value is too large"));
1171 *num = (uint64_t)fval;
1173 if ((shift = str2shift(hdl, end)) == -1)
1176 /* Check for overflow */
1177 if (shift >= 64 || (*num << shift) >> shift != *num) {
1179 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1180 "numeric value is too large"));
1191 * Given a propname=value nvpair to set, parse any numeric properties
1192 * (index, boolean, etc) if they are specified as strings and add the
1193 * resulting nvpair to the returned nvlist.
1195 * At the DSL layer, all properties are either 64-bit numbers or strings.
1196 * We want the user to be able to ignore this fact and specify properties
1197 * as native values (numbers, for example) or as strings (to simplify
1198 * command line utilities). This also handles converting index types
1199 * (compression, checksum, etc) from strings to their on-disk index.
1202 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1203 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1206 data_type_t datatype = nvpair_type(elem);
1207 zprop_type_t proptype;
1208 const char *propname;
1210 boolean_t isnone = B_FALSE;
1212 if (type == ZFS_TYPE_POOL) {
1213 proptype = zpool_prop_get_type(prop);
1214 propname = zpool_prop_to_name(prop);
1216 proptype = zfs_prop_get_type(prop);
1217 propname = zfs_prop_to_name(prop);
1221 * Convert any properties to the internal DSL value types.
1227 case PROP_TYPE_STRING:
1228 if (datatype != DATA_TYPE_STRING) {
1229 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1230 "'%s' must be a string"), nvpair_name(elem));
1233 (void) nvpair_value_string(elem, svalp);
1234 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1235 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1236 "'%s' is too long"), nvpair_name(elem));
1241 case PROP_TYPE_NUMBER:
1242 if (datatype == DATA_TYPE_STRING) {
1243 (void) nvpair_value_string(elem, &value);
1244 if (strcmp(value, "none") == 0) {
1246 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1250 } else if (datatype == DATA_TYPE_UINT64) {
1251 (void) nvpair_value_uint64(elem, ivalp);
1253 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1254 "'%s' must be a number"), nvpair_name(elem));
1259 * Quota special: force 'none' and don't allow 0.
1261 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1262 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1263 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1264 "use 'none' to disable quota/refquota"));
1269 case PROP_TYPE_INDEX:
1270 if (datatype != DATA_TYPE_STRING) {
1271 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1272 "'%s' must be a string"), nvpair_name(elem));
1276 (void) nvpair_value_string(elem, &value);
1278 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1279 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1280 "'%s' must be one of '%s'"), propname,
1281 zprop_values(prop, type));
1291 * Add the result to our return set of properties.
1293 if (*svalp != NULL) {
1294 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1295 (void) no_memory(hdl);
1299 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1300 (void) no_memory(hdl);
1307 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1312 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1316 zprop_list_t *entry;
1318 prop = zprop_name_to_prop(propname, type);
1320 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1324 * When no property table entry can be found, return failure if
1325 * this is a pool property or if this isn't a user-defined
1328 if (prop == ZPROP_INVAL && (type == ZFS_TYPE_POOL ||
1329 (!zfs_prop_user(propname) && !zfs_prop_userquota(propname) &&
1330 !zfs_prop_written(propname)))) {
1331 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1332 "invalid property '%s'"), propname);
1333 return (zfs_error(hdl, EZFS_BADPROP,
1334 dgettext(TEXT_DOMAIN, "bad property list")));
1337 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1340 entry->pl_prop = prop;
1341 if (prop == ZPROP_INVAL) {
1342 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == NULL) {
1346 entry->pl_width = strlen(propname);
1348 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1358 * Given a comma-separated list of properties, construct a property list
1359 * containing both user-defined and native properties. This function will
1360 * return a NULL list if 'all' is specified, which can later be expanded
1361 * by zprop_expand_list().
1364 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1370 * If 'all' is specified, return a NULL list.
1372 if (strcmp(props, "all") == 0)
1376 * If no props were specified, return an error.
1378 if (props[0] == '\0') {
1379 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1380 "no properties specified"));
1381 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1382 "bad property list")));
1386 * It would be nice to use getsubopt() here, but the inclusion of column
1387 * aliases makes this more effort than it's worth.
1389 while (*props != '\0') {
1394 if ((p = strchr(props, ',')) == NULL) {
1395 len = strlen(props);
1402 * Check for empty options.
1405 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1406 "empty property name"));
1407 return (zfs_error(hdl, EZFS_BADPROP,
1408 dgettext(TEXT_DOMAIN, "bad property list")));
1412 * Check all regular property names.
1417 if (strcmp(props, "space") == 0) {
1418 static char *spaceprops[] = {
1419 "name", "avail", "used", "usedbysnapshots",
1420 "usedbydataset", "usedbyrefreservation",
1421 "usedbychildren", NULL
1425 for (i = 0; spaceprops[i]; i++) {
1426 if (addlist(hdl, spaceprops[i], listp, type))
1428 listp = &(*listp)->pl_next;
1431 if (addlist(hdl, props, listp, type))
1433 listp = &(*listp)->pl_next;
1445 zprop_free_list(zprop_list_t *pl)
1449 while (pl != NULL) {
1451 free(pl->pl_user_prop);
1457 typedef struct expand_data {
1458 zprop_list_t **last;
1459 libzfs_handle_t *hdl;
1464 zprop_expand_list_cb(int prop, void *cb)
1466 zprop_list_t *entry;
1467 expand_data_t *edp = cb;
1469 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1470 return (ZPROP_INVAL);
1472 entry->pl_prop = prop;
1473 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1474 entry->pl_all = B_TRUE;
1476 *(edp->last) = entry;
1477 edp->last = &entry->pl_next;
1479 return (ZPROP_CONT);
1483 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1485 zprop_list_t *entry;
1486 zprop_list_t **last;
1491 * If this is the very first time we've been called for an 'all'
1492 * specification, expand the list to include all native
1501 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1502 B_FALSE, type) == ZPROP_INVAL)
1506 * Add 'name' to the beginning of the list, which is handled
1509 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1512 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1514 entry->pl_width = zprop_width(entry->pl_prop,
1515 &entry->pl_fixed, type);
1516 entry->pl_all = B_TRUE;
1517 entry->pl_next = *plp;
1524 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1527 return (zprop_iter_common(func, cb, show_all, ordered, type));