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 2008 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, strerror(errno));
369 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
378 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
380 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
385 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
391 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
398 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
403 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
404 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
408 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
409 "pool already exists"));
410 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
414 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
415 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
419 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
420 "one or more devices is currently unavailable"));
421 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
425 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
429 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
433 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
438 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
442 zfs_error_aux(hdl, strerror(error));
443 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
451 * Display an out of memory error message and abort the current program.
454 no_memory(libzfs_handle_t *hdl)
456 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
460 * A safe form of malloc() which will die if the allocation fails.
463 zfs_alloc(libzfs_handle_t *hdl, size_t size)
467 if ((data = calloc(1, size)) == NULL)
468 (void) no_memory(hdl);
474 * A safe form of realloc(), which also zeroes newly allocated space.
477 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
481 if ((ret = realloc(ptr, newsize)) == NULL) {
482 (void) no_memory(hdl);
487 bzero((char *)ret + oldsize, (newsize - oldsize));
492 * A safe form of strdup() which will die if the allocation fails.
495 zfs_strdup(libzfs_handle_t *hdl, const char *str)
499 if ((ret = strdup(str)) == NULL)
500 (void) no_memory(hdl);
506 * Convert a number to an appropriately human-readable output.
509 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
520 u = " KMGTPE"[index];
523 (void) snprintf(buf, buflen, "%llu", n);
524 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
526 * If this is an even multiple of the base, always display
527 * without any decimal precision.
529 (void) snprintf(buf, buflen, "%llu%c", n, u);
532 * We want to choose a precision that reflects the best choice
533 * for fitting in 5 characters. This can get rather tricky when
534 * we have numbers that are very close to an order of magnitude.
535 * For example, when displaying 10239 (which is really 9.999K),
536 * we want only a single place of precision for 10.0K. We could
537 * develop some complex heuristics for this, but it's much
538 * easier just to try each combination in turn.
541 for (i = 2; i >= 0; i--) {
542 if (snprintf(buf, buflen, "%.*f%c", i,
543 (double)num / (1ULL << 10 * index), u) <= 5)
550 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
552 hdl->libzfs_printerr = printerr;
560 if (modfind("zfs") < 0) {
561 /* Not present in kernel, try loading it. */
562 if (kldload("zfs") < 0 || modfind("zfs") < 0) {
573 libzfs_handle_t *hdl;
575 if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
579 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
580 if (libzfs_load() == 0)
581 hdl->libzfs_fd = open(ZFS_DEV, O_RDWR);
582 if (hdl->libzfs_fd < 0) {
588 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
589 (void) close(hdl->libzfs_fd);
594 hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r");
603 libzfs_fini(libzfs_handle_t *hdl)
605 (void) close(hdl->libzfs_fd);
606 if (hdl->libzfs_mnttab)
607 (void) fclose(hdl->libzfs_mnttab);
608 if (hdl->libzfs_sharetab)
609 (void) fclose(hdl->libzfs_sharetab);
610 zfs_uninit_libshare(hdl);
611 if (hdl->libzfs_log_str)
612 (void) free(hdl->libzfs_log_str);
613 zpool_free_handles(hdl);
614 namespace_clear(hdl);
619 zpool_get_handle(zpool_handle_t *zhp)
621 return (zhp->zpool_hdl);
625 zfs_get_handle(zfs_handle_t *zhp)
627 return (zhp->zfs_hdl);
631 zfs_get_pool_handle(const zfs_handle_t *zhp)
633 return (zhp->zpool_hdl);
637 * Given a name, determine whether or not it's a valid path
638 * (starts with '/' or "./"). If so, walk the mnttab trying
639 * to match the device number. If not, treat the path as an
643 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
645 struct statfs statbuf;
647 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
649 * It's not a valid path, assume it's a name of type 'argtype'.
651 return (zfs_open(hdl, path, argtype));
654 if (statfs(path, &statbuf) != 0) {
655 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
659 if (strcmp(statbuf.f_fstypename, MNTTYPE_ZFS) != 0) {
660 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
665 return (zfs_open(hdl, statbuf.f_mntfromname, ZFS_TYPE_FILESYSTEM));
669 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
673 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
677 zc->zc_nvlist_dst_size = len;
678 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
679 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == 0)
686 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
687 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
688 * filled in by the kernel to indicate the actual required size.
691 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
693 free((void *)(uintptr_t)zc->zc_nvlist_dst);
694 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
695 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
703 * Called to free the src and dst nvlists stored in the command structure.
706 zcmd_free_nvlists(zfs_cmd_t *zc)
708 free((void *)(uintptr_t)zc->zc_nvlist_conf);
709 free((void *)(uintptr_t)zc->zc_nvlist_src);
710 free((void *)(uintptr_t)zc->zc_nvlist_dst);
714 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
720 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
722 if ((packed = zfs_alloc(hdl, len)) == NULL)
725 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
727 *outnv = (uint64_t)(uintptr_t)packed;
734 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
736 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
737 &zc->zc_nvlist_conf_size, nvl));
741 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
743 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
744 &zc->zc_nvlist_src_size, nvl));
748 * Unpacks an nvlist from the ZFS ioctl command structure.
751 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
753 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
754 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
755 return (no_memory(hdl));
761 zfs_ioctl(libzfs_handle_t *hdl, unsigned long request, zfs_cmd_t *zc)
765 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
766 error = ioctl(hdl->libzfs_fd, request, zc);
767 if (hdl->libzfs_log_str) {
768 free(hdl->libzfs_log_str);
769 hdl->libzfs_log_str = NULL;
777 * ================================================================
778 * API shared by zfs and zpool property management
779 * ================================================================
783 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
785 zprop_list_t *pl = cbp->cb_proplist;
790 cbp->cb_first = B_FALSE;
791 if (cbp->cb_scripted)
795 * Start with the length of the column headers.
797 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
798 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
800 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
802 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
806 * Go through and calculate the widths for each column. For the
807 * 'source' column, we kludge it up by taking the worst-case scenario of
808 * inheriting from the longest name. This is acceptable because in the
809 * majority of cases 'SOURCE' is the last column displayed, and we don't
810 * use the width anyway. Note that the 'VALUE' column can be oversized,
811 * if the name of the property is much longer the any values we find.
813 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
817 if (pl->pl_prop != ZPROP_INVAL) {
818 const char *propname = (type == ZFS_TYPE_POOL) ?
819 zpool_prop_to_name(pl->pl_prop) :
820 zfs_prop_to_name(pl->pl_prop);
822 len = strlen(propname);
823 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
824 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
826 len = strlen(pl->pl_user_prop);
827 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
828 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
834 if ((pl->pl_prop != ZFS_PROP_NAME || !pl->pl_all) &&
835 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
836 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
839 * 'NAME' and 'SOURCE' columns
841 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
843 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
844 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
845 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
846 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
851 * Now go through and print the headers.
853 for (i = 0; i < 4; i++) {
854 switch (cbp->cb_columns[i]) {
856 title = dgettext(TEXT_DOMAIN, "NAME");
858 case GET_COL_PROPERTY:
859 title = dgettext(TEXT_DOMAIN, "PROPERTY");
862 title = dgettext(TEXT_DOMAIN, "VALUE");
865 title = dgettext(TEXT_DOMAIN, "SOURCE");
872 if (i == 3 || cbp->cb_columns[i + 1] == 0)
873 (void) printf("%s", title);
875 (void) printf("%-*s ",
876 cbp->cb_colwidths[cbp->cb_columns[i]],
884 * Display a single line of output, according to the settings in the callback
888 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
889 const char *propname, const char *value, zprop_source_t sourcetype,
897 * Ignore those source types that the user has chosen to ignore.
899 if ((sourcetype & cbp->cb_sources) == 0)
903 zprop_print_headers(cbp, cbp->cb_type);
905 for (i = 0; i < 4; i++) {
906 switch (cbp->cb_columns[i]) {
911 case GET_COL_PROPERTY:
920 switch (sourcetype) {
925 case ZPROP_SRC_DEFAULT:
929 case ZPROP_SRC_LOCAL:
933 case ZPROP_SRC_TEMPORARY:
937 case ZPROP_SRC_INHERITED:
938 (void) snprintf(buf, sizeof (buf),
939 "inherited from %s", source);
949 if (cbp->cb_columns[i + 1] == 0)
950 (void) printf("%s", str);
951 else if (cbp->cb_scripted)
952 (void) printf("%s\t", str);
954 (void) printf("%-*s ",
955 cbp->cb_colwidths[cbp->cb_columns[i]],
964 * Given a numeric suffix, convert the value into a number of bits that the
965 * resulting value must be shifted.
968 str2shift(libzfs_handle_t *hdl, const char *buf)
970 const char *ends = "BKMGTPEZ";
975 for (i = 0; i < strlen(ends); i++) {
976 if (toupper(buf[0]) == ends[i])
979 if (i == strlen(ends)) {
980 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
981 "invalid numeric suffix '%s'"), buf);
986 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
987 * allow 'BB' - that's just weird.
989 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
990 toupper(buf[0]) != 'B'))
993 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
994 "invalid numeric suffix '%s'"), buf);
999 * Convert a string of the form '100G' into a real number. Used when setting
1000 * properties or creating a volume. 'buf' is used to place an extended error
1001 * message for the caller to use.
1004 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1011 /* Check to see if this looks like a number. */
1012 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1014 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1015 "bad numeric value '%s'"), value);
1019 /* Rely on stroll() to process the numeric portion. */
1021 *num = strtoll(value, &end, 10);
1024 * Check for ERANGE, which indicates that the value is too large to fit
1025 * in a 64-bit value.
1027 if (errno == ERANGE) {
1029 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1030 "numeric value is too large"));
1035 * If we have a decimal value, then do the computation with floating
1036 * point arithmetic. Otherwise, use standard arithmetic.
1039 double fval = strtod(value, &end);
1041 if ((shift = str2shift(hdl, end)) == -1)
1044 fval *= pow(2, shift);
1046 if (fval > UINT64_MAX) {
1048 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1049 "numeric value is too large"));
1053 *num = (uint64_t)fval;
1055 if ((shift = str2shift(hdl, end)) == -1)
1058 /* Check for overflow */
1059 if (shift >= 64 || (*num << shift) >> shift != *num) {
1061 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1062 "numeric value is too large"));
1073 * Given a propname=value nvpair to set, parse any numeric properties
1074 * (index, boolean, etc) if they are specified as strings and add the
1075 * resulting nvpair to the returned nvlist.
1077 * At the DSL layer, all properties are either 64-bit numbers or strings.
1078 * We want the user to be able to ignore this fact and specify properties
1079 * as native values (numbers, for example) or as strings (to simplify
1080 * command line utilities). This also handles converting index types
1081 * (compression, checksum, etc) from strings to their on-disk index.
1084 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1085 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1088 data_type_t datatype = nvpair_type(elem);
1089 zprop_type_t proptype;
1090 const char *propname;
1092 boolean_t isnone = B_FALSE;
1094 if (type == ZFS_TYPE_POOL) {
1095 proptype = zpool_prop_get_type(prop);
1096 propname = zpool_prop_to_name(prop);
1098 proptype = zfs_prop_get_type(prop);
1099 propname = zfs_prop_to_name(prop);
1103 * Convert any properties to the internal DSL value types.
1109 case PROP_TYPE_STRING:
1110 if (datatype != DATA_TYPE_STRING) {
1111 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1112 "'%s' must be a string"), nvpair_name(elem));
1115 (void) nvpair_value_string(elem, svalp);
1116 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1117 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1118 "'%s' is too long"), nvpair_name(elem));
1123 case PROP_TYPE_NUMBER:
1124 if (datatype == DATA_TYPE_STRING) {
1125 (void) nvpair_value_string(elem, &value);
1126 if (strcmp(value, "none") == 0) {
1128 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1132 } else if (datatype == DATA_TYPE_UINT64) {
1133 (void) nvpair_value_uint64(elem, ivalp);
1135 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1136 "'%s' must be a number"), nvpair_name(elem));
1141 * Quota special: force 'none' and don't allow 0.
1143 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1144 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1145 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1146 "use 'none' to disable quota/refquota"));
1151 case PROP_TYPE_INDEX:
1152 if (datatype != DATA_TYPE_STRING) {
1153 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1154 "'%s' must be a string"), nvpair_name(elem));
1158 (void) nvpair_value_string(elem, &value);
1160 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1161 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1162 "'%s' must be one of '%s'"), propname,
1163 zprop_values(prop, type));
1173 * Add the result to our return set of properties.
1175 if (*svalp != NULL) {
1176 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1177 (void) no_memory(hdl);
1181 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1182 (void) no_memory(hdl);
1189 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1194 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1198 zprop_list_t *entry;
1200 prop = zprop_name_to_prop(propname, type);
1202 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1206 * When no property table entry can be found, return failure if
1207 * this is a pool property or if this isn't a user-defined
1210 if (prop == ZPROP_INVAL && (type == ZFS_TYPE_POOL ||
1211 !zfs_prop_user(propname))) {
1212 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1213 "invalid property '%s'"), propname);
1214 return (zfs_error(hdl, EZFS_BADPROP,
1215 dgettext(TEXT_DOMAIN, "bad property list")));
1218 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1221 entry->pl_prop = prop;
1222 if (prop == ZPROP_INVAL) {
1223 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == NULL) {
1227 entry->pl_width = strlen(propname);
1229 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1239 * Given a comma-separated list of properties, construct a property list
1240 * containing both user-defined and native properties. This function will
1241 * return a NULL list if 'all' is specified, which can later be expanded
1242 * by zprop_expand_list().
1245 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1251 * If 'all' is specified, return a NULL list.
1253 if (strcmp(props, "all") == 0)
1257 * If no props were specified, return an error.
1259 if (props[0] == '\0') {
1260 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1261 "no properties specified"));
1262 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1263 "bad property list")));
1267 * It would be nice to use getsubopt() here, but the inclusion of column
1268 * aliases makes this more effort than it's worth.
1270 while (*props != '\0') {
1275 if ((p = strchr(props, ',')) == NULL) {
1276 len = strlen(props);
1283 * Check for empty options.
1286 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1287 "empty property name"));
1288 return (zfs_error(hdl, EZFS_BADPROP,
1289 dgettext(TEXT_DOMAIN, "bad property list")));
1293 * Check all regular property names.
1298 if (strcmp(props, "space") == 0) {
1299 static char *spaceprops[] = {
1300 "name", "avail", "used", "usedbysnapshots",
1301 "usedbydataset", "usedbyrefreservation",
1302 "usedbychildren", NULL
1306 for (i = 0; spaceprops[i]; i++) {
1307 if (addlist(hdl, spaceprops[i], listp, type))
1309 listp = &(*listp)->pl_next;
1312 if (addlist(hdl, props, listp, type))
1314 listp = &(*listp)->pl_next;
1326 zprop_free_list(zprop_list_t *pl)
1330 while (pl != NULL) {
1332 free(pl->pl_user_prop);
1338 typedef struct expand_data {
1339 zprop_list_t **last;
1340 libzfs_handle_t *hdl;
1345 zprop_expand_list_cb(int prop, void *cb)
1347 zprop_list_t *entry;
1348 expand_data_t *edp = cb;
1350 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1351 return (ZPROP_INVAL);
1353 entry->pl_prop = prop;
1354 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1355 entry->pl_all = B_TRUE;
1357 *(edp->last) = entry;
1358 edp->last = &entry->pl_next;
1360 return (ZPROP_CONT);
1364 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1366 zprop_list_t *entry;
1367 zprop_list_t **last;
1372 * If this is the very first time we've been called for an 'all'
1373 * specification, expand the list to include all native
1382 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1383 B_FALSE, type) == ZPROP_INVAL)
1387 * Add 'name' to the beginning of the list, which is handled
1390 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1393 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1395 entry->pl_width = zprop_width(entry->pl_prop,
1396 &entry->pl_fixed, type);
1397 entry->pl_all = B_TRUE;
1398 entry->pl_next = *plp;
1405 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1408 return (zprop_iter_common(func, cb, show_all, ordered, type));