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.
26 * Internal utility routines for the ZFS library.
39 #include <sys/mnttab.h>
40 #include <sys/mntent.h>
41 #include <sys/types.h>
45 #include "libzfs_impl.h"
49 libzfs_errno(libzfs_handle_t *hdl)
51 return (hdl->libzfs_error);
55 libzfs_error_action(libzfs_handle_t *hdl)
57 return (hdl->libzfs_action);
61 libzfs_error_description(libzfs_handle_t *hdl)
63 if (hdl->libzfs_desc[0] != '\0')
64 return (hdl->libzfs_desc);
66 switch (hdl->libzfs_error) {
68 return (dgettext(TEXT_DOMAIN, "out of memory"));
70 return (dgettext(TEXT_DOMAIN, "invalid property value"));
71 case EZFS_PROPREADONLY:
72 return (dgettext(TEXT_DOMAIN, "read only property"));
74 return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
75 "datasets of this type"));
76 case EZFS_PROPNONINHERIT:
77 return (dgettext(TEXT_DOMAIN, "property cannot be inherited"));
79 return (dgettext(TEXT_DOMAIN, "invalid quota or reservation"));
81 return (dgettext(TEXT_DOMAIN, "operation not applicable to "
82 "datasets of this type"));
84 return (dgettext(TEXT_DOMAIN, "pool or dataset is busy"));
86 return (dgettext(TEXT_DOMAIN, "pool or dataset exists"));
88 return (dgettext(TEXT_DOMAIN, "no such pool or dataset"));
90 return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
92 return (dgettext(TEXT_DOMAIN, "dataset is read only"));
94 return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
96 case EZFS_INVALIDNAME:
97 return (dgettext(TEXT_DOMAIN, "invalid name"));
99 return (dgettext(TEXT_DOMAIN, "unable to restore to "
102 return (dgettext(TEXT_DOMAIN, "backup failed"));
104 return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
106 return (dgettext(TEXT_DOMAIN, "no such device in pool"));
108 return (dgettext(TEXT_DOMAIN, "invalid device"));
109 case EZFS_NOREPLICAS:
110 return (dgettext(TEXT_DOMAIN, "no valid replicas"));
111 case EZFS_RESILVERING:
112 return (dgettext(TEXT_DOMAIN, "currently resilvering"));
113 case EZFS_BADVERSION:
114 return (dgettext(TEXT_DOMAIN, "unsupported version"));
115 case EZFS_POOLUNAVAIL:
116 return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
117 case EZFS_DEVOVERFLOW:
118 return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
120 return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
121 case EZFS_CROSSTARGET:
122 return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
125 return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
126 case EZFS_MOUNTFAILED:
127 return (dgettext(TEXT_DOMAIN, "mount failed"));
128 case EZFS_UMOUNTFAILED:
129 return (dgettext(TEXT_DOMAIN, "umount failed"));
130 case EZFS_UNSHARENFSFAILED:
131 return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
132 case EZFS_SHARENFSFAILED:
133 return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
134 case EZFS_UNSHARESMBFAILED:
135 return (dgettext(TEXT_DOMAIN, "smb remove share failed"));
136 case EZFS_SHARESMBFAILED:
137 return (dgettext(TEXT_DOMAIN, "smb add share failed"));
139 return (dgettext(TEXT_DOMAIN, "permission denied"));
141 return (dgettext(TEXT_DOMAIN, "out of space"));
143 return (dgettext(TEXT_DOMAIN, "bad address"));
145 return (dgettext(TEXT_DOMAIN, "I/O error"));
147 return (dgettext(TEXT_DOMAIN, "signal received"));
149 return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
151 case EZFS_INVALCONFIG:
152 return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
154 return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
156 return (dgettext(TEXT_DOMAIN, "no history available"));
158 return (dgettext(TEXT_DOMAIN, "failed to retrieve "
160 case EZFS_POOL_NOTSUP:
161 return (dgettext(TEXT_DOMAIN, "operation not supported "
162 "on this type of pool"));
163 case EZFS_POOL_INVALARG:
164 return (dgettext(TEXT_DOMAIN, "invalid argument for "
165 "this pool operation"));
166 case EZFS_NAMETOOLONG:
167 return (dgettext(TEXT_DOMAIN, "dataset name is too long"));
168 case EZFS_OPENFAILED:
169 return (dgettext(TEXT_DOMAIN, "open failed"));
171 return (dgettext(TEXT_DOMAIN,
172 "disk capacity information could not be retrieved"));
173 case EZFS_LABELFAILED:
174 return (dgettext(TEXT_DOMAIN, "write of label failed"));
176 return (dgettext(TEXT_DOMAIN, "invalid user/group"));
178 return (dgettext(TEXT_DOMAIN, "invalid permission"));
179 case EZFS_BADPERMSET:
180 return (dgettext(TEXT_DOMAIN, "invalid permission set name"));
181 case EZFS_NODELEGATION:
182 return (dgettext(TEXT_DOMAIN, "delegated administration is "
183 "disabled on pool"));
184 case EZFS_PERMRDONLY:
185 return (dgettext(TEXT_DOMAIN, "snapshot permissions cannot be"
188 return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
190 return (dgettext(TEXT_DOMAIN, "device is in use as a cache"));
191 case EZFS_VDEVNOTSUP:
192 return (dgettext(TEXT_DOMAIN, "vdev specification is not "
195 return (dgettext(TEXT_DOMAIN, "operation not supported "
197 case EZFS_ACTIVE_SPARE:
198 return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
200 case EZFS_UNPLAYED_LOGS:
201 return (dgettext(TEXT_DOMAIN, "log device has unplayed intent "
203 case EZFS_REFTAG_RELE:
204 return (dgettext(TEXT_DOMAIN, "no such tag on this dataset"));
205 case EZFS_REFTAG_HOLD:
206 return (dgettext(TEXT_DOMAIN, "tag already exists on this "
208 case EZFS_TAGTOOLONG:
209 return (dgettext(TEXT_DOMAIN, "tag too long"));
210 case EZFS_PIPEFAILED:
211 return (dgettext(TEXT_DOMAIN, "pipe create failed"));
212 case EZFS_THREADCREATEFAILED:
213 return (dgettext(TEXT_DOMAIN, "thread create failed"));
214 case EZFS_POSTSPLIT_ONLINE:
215 return (dgettext(TEXT_DOMAIN, "disk was split from this pool "
218 return (dgettext(TEXT_DOMAIN, "currently scrubbing; "
219 "use 'zpool scrub -s' to cancel current scrub"));
221 return (dgettext(TEXT_DOMAIN, "there is no active scrub"));
223 return (dgettext(TEXT_DOMAIN, "unknown error"));
225 assert(hdl->libzfs_error == 0);
226 return (dgettext(TEXT_DOMAIN, "no error"));
232 zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
238 (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
240 hdl->libzfs_desc_active = 1;
246 zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
248 (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
250 hdl->libzfs_error = error;
252 if (hdl->libzfs_desc_active)
253 hdl->libzfs_desc_active = 0;
255 hdl->libzfs_desc[0] = '\0';
257 if (hdl->libzfs_printerr) {
258 if (error == EZFS_UNKNOWN) {
259 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
260 "error: %s\n"), libzfs_error_description(hdl));
264 (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
265 libzfs_error_description(hdl));
266 if (error == EZFS_NOMEM)
272 zfs_error(libzfs_handle_t *hdl, int error, const char *msg)
274 return (zfs_error_fmt(hdl, error, "%s", msg));
279 zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
285 zfs_verror(hdl, error, fmt, ap);
293 zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
299 zfs_verror(hdl, EZFS_PERM, fmt, ap);
303 zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap);
307 zfs_verror(hdl, EZFS_IO, fmt, ap);
311 zfs_verror(hdl, EZFS_FAULT, fmt, ap);
315 zfs_verror(hdl, EZFS_INTR, fmt, ap);
323 zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
325 return (zfs_standard_error_fmt(hdl, error, "%s", msg));
330 zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
336 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
344 zfs_verror(hdl, EZFS_IO, fmt, ap);
348 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
349 "dataset does not exist"));
350 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
355 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
359 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
360 "dataset already exists"));
361 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
365 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
367 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
370 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
371 "snapshot permissions cannot be modified"));
372 zfs_verror(hdl, EZFS_PERMRDONLY, fmt, ap);
375 zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
378 zfs_verror(hdl, EZFS_BADVERSION, fmt, ap);
381 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
382 "pool I/O is currently suspended"));
383 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
386 zfs_error_aux(hdl, strerror(error));
387 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
396 zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg)
398 return (zpool_standard_error_fmt(hdl, error, "%s", msg));
403 zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
409 if (zfs_common_error(hdl, error, fmt, ap) != 0) {
416 zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
421 dgettext(TEXT_DOMAIN, "no such pool or dataset"));
422 zfs_verror(hdl, EZFS_NOENT, fmt, ap);
426 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
427 "pool already exists"));
428 zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
432 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
433 zfs_verror(hdl, EZFS_BUSY, fmt, ap);
437 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
438 "one or more devices is currently unavailable"));
439 zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
443 zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
447 zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap);
451 zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap);
456 zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
459 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
460 "pool I/O is currently suspended"));
461 zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
465 zfs_error_aux(hdl, strerror(error));
466 zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
474 * Display an out of memory error message and abort the current program.
477 no_memory(libzfs_handle_t *hdl)
479 return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
483 * A safe form of malloc() which will die if the allocation fails.
486 zfs_alloc(libzfs_handle_t *hdl, size_t size)
490 if ((data = calloc(1, size)) == NULL)
491 (void) no_memory(hdl);
497 * A safe form of realloc(), which also zeroes newly allocated space.
500 zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
504 if ((ret = realloc(ptr, newsize)) == NULL) {
505 (void) no_memory(hdl);
509 bzero((char *)ret + oldsize, (newsize - oldsize));
514 * A safe form of strdup() which will die if the allocation fails.
517 zfs_strdup(libzfs_handle_t *hdl, const char *str)
521 if ((ret = strdup(str)) == NULL)
522 (void) no_memory(hdl);
528 * Convert a number to an appropriately human-readable output.
531 zfs_nicenum(uint64_t num, char *buf, size_t buflen)
542 u = " KMGTPE"[index];
545 (void) snprintf(buf, buflen, "%llu", n);
546 } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
548 * If this is an even multiple of the base, always display
549 * without any decimal precision.
551 (void) snprintf(buf, buflen, "%llu%c", n, u);
554 * We want to choose a precision that reflects the best choice
555 * for fitting in 5 characters. This can get rather tricky when
556 * we have numbers that are very close to an order of magnitude.
557 * For example, when displaying 10239 (which is really 9.999K),
558 * we want only a single place of precision for 10.0K. We could
559 * develop some complex heuristics for this, but it's much
560 * easier just to try each combination in turn.
563 for (i = 2; i >= 0; i--) {
564 if (snprintf(buf, buflen, "%.*f%c", i,
565 (double)num / (1ULL << 10 * index), u) <= 5)
572 libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
574 hdl->libzfs_printerr = printerr;
580 libzfs_handle_t *hdl;
582 if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
586 if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
591 if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
592 (void) close(hdl->libzfs_fd);
597 hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "r");
601 libzfs_mnttab_init(hdl);
607 libzfs_fini(libzfs_handle_t *hdl)
609 (void) close(hdl->libzfs_fd);
610 if (hdl->libzfs_mnttab)
611 (void) fclose(hdl->libzfs_mnttab);
612 if (hdl->libzfs_sharetab)
613 (void) fclose(hdl->libzfs_sharetab);
614 zfs_uninit_libshare(hdl);
615 if (hdl->libzfs_log_str)
616 (void) free(hdl->libzfs_log_str);
617 zpool_free_handles(hdl);
618 libzfs_fru_clear(hdl, B_TRUE);
619 namespace_clear(hdl);
620 libzfs_mnttab_fini(hdl);
625 zpool_get_handle(zpool_handle_t *zhp)
627 return (zhp->zpool_hdl);
631 zfs_get_handle(zfs_handle_t *zhp)
633 return (zhp->zfs_hdl);
637 zfs_get_pool_handle(const zfs_handle_t *zhp)
639 return (zhp->zpool_hdl);
643 * Given a name, determine whether or not it's a valid path
644 * (starts with '/' or "./"). If so, walk the mnttab trying
645 * to match the device number. If not, treat the path as an
649 zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
651 struct stat64 statbuf;
652 struct extmnttab entry;
655 if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) {
657 * It's not a valid path, assume it's a name of type 'argtype'.
659 return (zfs_open(hdl, path, argtype));
662 if (stat64(path, &statbuf) != 0) {
663 (void) fprintf(stderr, "%s: %s\n", path, strerror(errno));
667 rewind(hdl->libzfs_mnttab);
668 while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) {
669 if (makedevice(entry.mnt_major, entry.mnt_minor) ==
678 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) {
679 (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"),
684 return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
688 * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
692 zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
696 zc->zc_nvlist_dst_size = len;
697 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
698 zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == NULL)
705 * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
706 * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
707 * filled in by the kernel to indicate the actual required size.
710 zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
712 free((void *)(uintptr_t)zc->zc_nvlist_dst);
713 if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
714 zfs_alloc(hdl, zc->zc_nvlist_dst_size))
722 * Called to free the src and dst nvlists stored in the command structure.
725 zcmd_free_nvlists(zfs_cmd_t *zc)
727 free((void *)(uintptr_t)zc->zc_nvlist_conf);
728 free((void *)(uintptr_t)zc->zc_nvlist_src);
729 free((void *)(uintptr_t)zc->zc_nvlist_dst);
733 zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen,
739 verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
741 if ((packed = zfs_alloc(hdl, len)) == NULL)
744 verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
746 *outnv = (uint64_t)(uintptr_t)packed;
753 zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
755 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf,
756 &zc->zc_nvlist_conf_size, nvl));
760 zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl)
762 return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src,
763 &zc->zc_nvlist_src_size, nvl));
767 * Unpacks an nvlist from the ZFS ioctl command structure.
770 zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
772 if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
773 zc->zc_nvlist_dst_size, nvlp, 0) != 0)
774 return (no_memory(hdl));
780 zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc)
784 zc->zc_history = (uint64_t)(uintptr_t)hdl->libzfs_log_str;
785 error = ioctl(hdl->libzfs_fd, request, zc);
786 if (hdl->libzfs_log_str) {
787 free(hdl->libzfs_log_str);
788 hdl->libzfs_log_str = NULL;
796 * ================================================================
797 * API shared by zfs and zpool property management
798 * ================================================================
802 zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type)
804 zprop_list_t *pl = cbp->cb_proplist;
809 cbp->cb_first = B_FALSE;
810 if (cbp->cb_scripted)
814 * Start with the length of the column headers.
816 cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME"));
817 cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN,
819 cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN,
821 cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN,
823 cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN,
826 /* first property is always NAME */
827 assert(cbp->cb_proplist->pl_prop ==
828 ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME));
831 * Go through and calculate the widths for each column. For the
832 * 'source' column, we kludge it up by taking the worst-case scenario of
833 * inheriting from the longest name. This is acceptable because in the
834 * majority of cases 'SOURCE' is the last column displayed, and we don't
835 * use the width anyway. Note that the 'VALUE' column can be oversized,
836 * if the name of the property is much longer than any values we find.
838 for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
842 if (pl->pl_prop != ZPROP_INVAL) {
843 const char *propname = (type == ZFS_TYPE_POOL) ?
844 zpool_prop_to_name(pl->pl_prop) :
845 zfs_prop_to_name(pl->pl_prop);
847 len = strlen(propname);
848 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
849 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
851 len = strlen(pl->pl_user_prop);
852 if (len > cbp->cb_colwidths[GET_COL_PROPERTY])
853 cbp->cb_colwidths[GET_COL_PROPERTY] = len;
857 * 'VALUE' column. The first property is always the 'name'
858 * property that was tacked on either by /sbin/zfs's
859 * zfs_do_get() or when calling zprop_expand_list(), so we
860 * ignore its width. If the user specified the name property
861 * to display, then it will be later in the list in any case.
863 if (pl != cbp->cb_proplist &&
864 pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE])
865 cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width;
867 /* 'RECEIVED' column. */
868 if (pl != cbp->cb_proplist &&
869 pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD])
870 cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width;
873 * 'NAME' and 'SOURCE' columns
875 if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME :
877 pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) {
878 cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width;
879 cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width +
880 strlen(dgettext(TEXT_DOMAIN, "inherited from"));
885 * Now go through and print the headers.
887 for (i = 0; i < ZFS_GET_NCOLS; i++) {
888 switch (cbp->cb_columns[i]) {
890 title = dgettext(TEXT_DOMAIN, "NAME");
892 case GET_COL_PROPERTY:
893 title = dgettext(TEXT_DOMAIN, "PROPERTY");
896 title = dgettext(TEXT_DOMAIN, "VALUE");
899 title = dgettext(TEXT_DOMAIN, "RECEIVED");
902 title = dgettext(TEXT_DOMAIN, "SOURCE");
909 if (i == (ZFS_GET_NCOLS - 1) ||
910 cbp->cb_columns[i + 1] == GET_COL_NONE)
911 (void) printf("%s", title);
913 (void) printf("%-*s ",
914 cbp->cb_colwidths[cbp->cb_columns[i]],
922 * Display a single line of output, according to the settings in the callback
926 zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp,
927 const char *propname, const char *value, zprop_source_t sourcetype,
928 const char *source, const char *recvd_value)
935 * Ignore those source types that the user has chosen to ignore.
937 if ((sourcetype & cbp->cb_sources) == 0)
941 zprop_print_headers(cbp, cbp->cb_type);
943 for (i = 0; i < ZFS_GET_NCOLS; i++) {
944 switch (cbp->cb_columns[i]) {
949 case GET_COL_PROPERTY:
958 switch (sourcetype) {
963 case ZPROP_SRC_DEFAULT:
967 case ZPROP_SRC_LOCAL:
971 case ZPROP_SRC_TEMPORARY:
975 case ZPROP_SRC_INHERITED:
976 (void) snprintf(buf, sizeof (buf),
977 "inherited from %s", source);
980 case ZPROP_SRC_RECEIVED:
987 str = (recvd_value == NULL ? "-" : recvd_value);
994 if (cbp->cb_columns[i + 1] == GET_COL_NONE)
995 (void) printf("%s", str);
996 else if (cbp->cb_scripted)
997 (void) printf("%s\t", str);
999 (void) printf("%-*s ",
1000 cbp->cb_colwidths[cbp->cb_columns[i]],
1004 (void) printf("\n");
1008 * Given a numeric suffix, convert the value into a number of bits that the
1009 * resulting value must be shifted.
1012 str2shift(libzfs_handle_t *hdl, const char *buf)
1014 const char *ends = "BKMGTPEZ";
1019 for (i = 0; i < strlen(ends); i++) {
1020 if (toupper(buf[0]) == ends[i])
1023 if (i == strlen(ends)) {
1024 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1025 "invalid numeric suffix '%s'"), buf);
1030 * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't
1031 * allow 'BB' - that's just weird.
1033 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' &&
1034 toupper(buf[0]) != 'B'))
1037 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1038 "invalid numeric suffix '%s'"), buf);
1043 * Convert a string of the form '100G' into a real number. Used when setting
1044 * properties or creating a volume. 'buf' is used to place an extended error
1045 * message for the caller to use.
1048 zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num)
1055 /* Check to see if this looks like a number. */
1056 if ((value[0] < '0' || value[0] > '9') && value[0] != '.') {
1058 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1059 "bad numeric value '%s'"), value);
1063 /* Rely on strtoull() to process the numeric portion. */
1065 *num = strtoull(value, &end, 10);
1068 * Check for ERANGE, which indicates that the value is too large to fit
1069 * in a 64-bit value.
1071 if (errno == ERANGE) {
1073 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1074 "numeric value is too large"));
1079 * If we have a decimal value, then do the computation with floating
1080 * point arithmetic. Otherwise, use standard arithmetic.
1083 double fval = strtod(value, &end);
1085 if ((shift = str2shift(hdl, end)) == -1)
1088 fval *= pow(2, shift);
1090 if (fval > UINT64_MAX) {
1092 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1093 "numeric value is too large"));
1097 *num = (uint64_t)fval;
1099 if ((shift = str2shift(hdl, end)) == -1)
1102 /* Check for overflow */
1103 if (shift >= 64 || (*num << shift) >> shift != *num) {
1105 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1106 "numeric value is too large"));
1117 * Given a propname=value nvpair to set, parse any numeric properties
1118 * (index, boolean, etc) if they are specified as strings and add the
1119 * resulting nvpair to the returned nvlist.
1121 * At the DSL layer, all properties are either 64-bit numbers or strings.
1122 * We want the user to be able to ignore this fact and specify properties
1123 * as native values (numbers, for example) or as strings (to simplify
1124 * command line utilities). This also handles converting index types
1125 * (compression, checksum, etc) from strings to their on-disk index.
1128 zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop,
1129 zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp,
1132 data_type_t datatype = nvpair_type(elem);
1133 zprop_type_t proptype;
1134 const char *propname;
1136 boolean_t isnone = B_FALSE;
1138 if (type == ZFS_TYPE_POOL) {
1139 proptype = zpool_prop_get_type(prop);
1140 propname = zpool_prop_to_name(prop);
1142 proptype = zfs_prop_get_type(prop);
1143 propname = zfs_prop_to_name(prop);
1147 * Convert any properties to the internal DSL value types.
1153 case PROP_TYPE_STRING:
1154 if (datatype != DATA_TYPE_STRING) {
1155 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1156 "'%s' must be a string"), nvpair_name(elem));
1159 (void) nvpair_value_string(elem, svalp);
1160 if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
1161 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1162 "'%s' is too long"), nvpair_name(elem));
1167 case PROP_TYPE_NUMBER:
1168 if (datatype == DATA_TYPE_STRING) {
1169 (void) nvpair_value_string(elem, &value);
1170 if (strcmp(value, "none") == 0) {
1172 } else if (zfs_nicestrtonum(hdl, value, ivalp)
1176 } else if (datatype == DATA_TYPE_UINT64) {
1177 (void) nvpair_value_uint64(elem, ivalp);
1179 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1180 "'%s' must be a number"), nvpair_name(elem));
1185 * Quota special: force 'none' and don't allow 0.
1187 if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone &&
1188 (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) {
1189 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1190 "use 'none' to disable quota/refquota"));
1195 case PROP_TYPE_INDEX:
1196 if (datatype != DATA_TYPE_STRING) {
1197 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1198 "'%s' must be a string"), nvpair_name(elem));
1202 (void) nvpair_value_string(elem, &value);
1204 if (zprop_string_to_index(prop, value, ivalp, type) != 0) {
1205 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1206 "'%s' must be one of '%s'"), propname,
1207 zprop_values(prop, type));
1217 * Add the result to our return set of properties.
1219 if (*svalp != NULL) {
1220 if (nvlist_add_string(ret, propname, *svalp) != 0) {
1221 (void) no_memory(hdl);
1225 if (nvlist_add_uint64(ret, propname, *ivalp) != 0) {
1226 (void) no_memory(hdl);
1233 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
1238 addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp,
1242 zprop_list_t *entry;
1244 prop = zprop_name_to_prop(propname, type);
1246 if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type))
1250 * When no property table entry can be found, return failure if
1251 * this is a pool property or if this isn't a user-defined
1254 if (prop == ZPROP_INVAL && (type == ZFS_TYPE_POOL ||
1255 (!zfs_prop_user(propname) && !zfs_prop_userquota(propname)))) {
1256 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1257 "invalid property '%s'"), propname);
1258 return (zfs_error(hdl, EZFS_BADPROP,
1259 dgettext(TEXT_DOMAIN, "bad property list")));
1262 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1265 entry->pl_prop = prop;
1266 if (prop == ZPROP_INVAL) {
1267 if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == NULL) {
1271 entry->pl_width = strlen(propname);
1273 entry->pl_width = zprop_width(prop, &entry->pl_fixed,
1283 * Given a comma-separated list of properties, construct a property list
1284 * containing both user-defined and native properties. This function will
1285 * return a NULL list if 'all' is specified, which can later be expanded
1286 * by zprop_expand_list().
1289 zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp,
1295 * If 'all' is specified, return a NULL list.
1297 if (strcmp(props, "all") == 0)
1301 * If no props were specified, return an error.
1303 if (props[0] == '\0') {
1304 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1305 "no properties specified"));
1306 return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN,
1307 "bad property list")));
1311 * It would be nice to use getsubopt() here, but the inclusion of column
1312 * aliases makes this more effort than it's worth.
1314 while (*props != '\0') {
1319 if ((p = strchr(props, ',')) == NULL) {
1320 len = strlen(props);
1327 * Check for empty options.
1330 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
1331 "empty property name"));
1332 return (zfs_error(hdl, EZFS_BADPROP,
1333 dgettext(TEXT_DOMAIN, "bad property list")));
1337 * Check all regular property names.
1342 if (strcmp(props, "space") == 0) {
1343 static char *spaceprops[] = {
1344 "name", "avail", "used", "usedbysnapshots",
1345 "usedbydataset", "usedbyrefreservation",
1346 "usedbychildren", NULL
1350 for (i = 0; spaceprops[i]; i++) {
1351 if (addlist(hdl, spaceprops[i], listp, type))
1353 listp = &(*listp)->pl_next;
1356 if (addlist(hdl, props, listp, type))
1358 listp = &(*listp)->pl_next;
1370 zprop_free_list(zprop_list_t *pl)
1374 while (pl != NULL) {
1376 free(pl->pl_user_prop);
1382 typedef struct expand_data {
1383 zprop_list_t **last;
1384 libzfs_handle_t *hdl;
1389 zprop_expand_list_cb(int prop, void *cb)
1391 zprop_list_t *entry;
1392 expand_data_t *edp = cb;
1394 if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL)
1395 return (ZPROP_INVAL);
1397 entry->pl_prop = prop;
1398 entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type);
1399 entry->pl_all = B_TRUE;
1401 *(edp->last) = entry;
1402 edp->last = &entry->pl_next;
1404 return (ZPROP_CONT);
1408 zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type)
1410 zprop_list_t *entry;
1411 zprop_list_t **last;
1416 * If this is the very first time we've been called for an 'all'
1417 * specification, expand the list to include all native
1426 if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE,
1427 B_FALSE, type) == ZPROP_INVAL)
1431 * Add 'name' to the beginning of the list, which is handled
1434 if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL)
1437 entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME :
1439 entry->pl_width = zprop_width(entry->pl_prop,
1440 &entry->pl_fixed, type);
1441 entry->pl_all = B_TRUE;
1442 entry->pl_next = *plp;
1449 zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered,
1452 return (zprop_iter_common(func, cb, show_all, ordered, type));