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 * Portions Copyright 2011 Martin Matuska
25 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
29 * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved.
38 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
39 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
41 * There are two ways that we handle ioctls: the legacy way where almost
42 * all of the logic is in the ioctl callback, and the new way where most
43 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
45 * Non-legacy ioctls should be registered by calling
46 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
47 * from userland by lzc_ioctl().
49 * The registration arguments are as follows:
52 * The name of the ioctl. This is used for history logging. If the
53 * ioctl returns successfully (the callback returns 0), and allow_log
54 * is true, then a history log entry will be recorded with the input &
55 * output nvlists. The log entry can be printed with "zpool history -i".
58 * The ioctl request number, which userland will pass to ioctl(2).
59 * The ioctl numbers can change from release to release, because
60 * the caller (libzfs) must be matched to the kernel.
62 * zfs_secpolicy_func_t *secpolicy
63 * This function will be called before the zfs_ioc_func_t, to
64 * determine if this operation is permitted. It should return EPERM
65 * on failure, and 0 on success. Checks include determining if the
66 * dataset is visible in this zone, and if the user has either all
67 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
68 * to do this operation on this dataset with "zfs allow".
70 * zfs_ioc_namecheck_t namecheck
71 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
72 * name, a dataset name, or nothing. If the name is not well-formed,
73 * the ioctl will fail and the callback will not be called.
74 * Therefore, the callback can assume that the name is well-formed
75 * (e.g. is null-terminated, doesn't have more than one '@' character,
76 * doesn't have invalid characters).
78 * zfs_ioc_poolcheck_t pool_check
79 * This specifies requirements on the pool state. If the pool does
80 * not meet them (is suspended or is readonly), the ioctl will fail
81 * and the callback will not be called. If any checks are specified
82 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
83 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
84 * POOL_CHECK_READONLY).
86 * boolean_t smush_outnvlist
87 * If smush_outnvlist is true, then the output is presumed to be a
88 * list of errors, and it will be "smushed" down to fit into the
89 * caller's buffer, by removing some entries and replacing them with a
90 * single "N_MORE_ERRORS" entry indicating how many were removed. See
91 * nvlist_smush() for details. If smush_outnvlist is false, and the
92 * outnvlist does not fit into the userland-provided buffer, then the
93 * ioctl will fail with ENOMEM.
95 * zfs_ioc_func_t *func
96 * The callback function that will perform the operation.
98 * The callback should return 0 on success, or an error number on
99 * failure. If the function fails, the userland ioctl will return -1,
100 * and errno will be set to the callback's return value. The callback
101 * will be called with the following arguments:
104 * The name of the pool or dataset to operate on, from
105 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
106 * expected type (pool, dataset, or none).
109 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
110 * NULL if no input nvlist was provided. Changes to this nvlist are
111 * ignored. If the input nvlist could not be deserialized, the
112 * ioctl will fail and the callback will not be called.
115 * The output nvlist, initially empty. The callback can fill it in,
116 * and it will be returned to userland by serializing it into
117 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
118 * fails (e.g. because the caller didn't supply a large enough
119 * buffer), then the overall ioctl will fail. See the
120 * 'smush_nvlist' argument above for additional behaviors.
122 * There are two typical uses of the output nvlist:
123 * - To return state, e.g. property values. In this case,
124 * smush_outnvlist should be false. If the buffer was not large
125 * enough, the caller will reallocate a larger buffer and try
128 * - To return multiple errors from an ioctl which makes on-disk
129 * changes. In this case, smush_outnvlist should be true.
130 * Ioctls which make on-disk modifications should generally not
131 * use the outnvl if they succeed, because the caller can not
132 * distinguish between the operation failing, and
133 * deserialization failing.
136 #include <sys/types.h>
137 #include <sys/param.h>
138 #include <sys/errno.h>
141 #include <sys/modctl.h>
142 #include <sys/open.h>
143 #include <sys/file.h>
144 #include <sys/kmem.h>
145 #include <sys/conf.h>
146 #include <sys/cmn_err.h>
147 #include <sys/stat.h>
148 #include <sys/zfs_ioctl.h>
149 #include <sys/zfs_vfsops.h>
150 #include <sys/zfs_znode.h>
153 #include <sys/spa_impl.h>
154 #include <sys/vdev.h>
155 #include <sys/priv_impl.h>
157 #include <sys/dsl_dir.h>
158 #include <sys/dsl_dataset.h>
159 #include <sys/dsl_prop.h>
160 #include <sys/dsl_deleg.h>
161 #include <sys/dmu_objset.h>
162 #include <sys/dmu_impl.h>
163 #include <sys/dmu_tx.h>
165 #include <sys/sunddi.h>
166 #include <sys/sunldi.h>
167 #include <sys/policy.h>
168 #include <sys/zone.h>
169 #include <sys/nvpair.h>
170 #include <sys/pathname.h>
171 #include <sys/mount.h>
173 #include <sys/fs/zfs.h>
174 #include <sys/zfs_ctldir.h>
175 #include <sys/zfs_dir.h>
176 #include <sys/zfs_onexit.h>
177 #include <sys/zvol.h>
178 #include <sys/dsl_scan.h>
179 #include <sharefs/share.h>
180 #include <sys/fm/util.h>
182 #include <sys/dmu_send.h>
183 #include <sys/dsl_destroy.h>
184 #include <sys/dsl_bookmark.h>
185 #include <sys/dsl_userhold.h>
186 #include <sys/zfeature.h>
188 #include <linux/miscdevice.h>
190 #include "zfs_namecheck.h"
191 #include "zfs_prop.h"
192 #include "zfs_deleg.h"
193 #include "zfs_comutil.h"
195 kmutex_t zfsdev_state_lock;
196 zfsdev_state_t *zfsdev_state_list;
198 extern void zfs_init(void);
199 extern void zfs_fini(void);
201 uint_t zfs_fsyncer_key;
202 extern uint_t rrw_tsd_key;
203 static uint_t zfs_allow_log_key;
205 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
206 typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
207 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
213 } zfs_ioc_namecheck_t;
216 POOL_CHECK_NONE = 1 << 0,
217 POOL_CHECK_SUSPENDED = 1 << 1,
218 POOL_CHECK_READONLY = 1 << 2,
219 } zfs_ioc_poolcheck_t;
221 typedef struct zfs_ioc_vec {
222 zfs_ioc_legacy_func_t *zvec_legacy_func;
223 zfs_ioc_func_t *zvec_func;
224 zfs_secpolicy_func_t *zvec_secpolicy;
225 zfs_ioc_namecheck_t zvec_namecheck;
226 boolean_t zvec_allow_log;
227 zfs_ioc_poolcheck_t zvec_pool_check;
228 boolean_t zvec_smush_outnvlist;
229 const char *zvec_name;
232 /* This array is indexed by zfs_userquota_prop_t */
233 static const char *userquota_perms[] = {
234 ZFS_DELEG_PERM_USERUSED,
235 ZFS_DELEG_PERM_USERQUOTA,
236 ZFS_DELEG_PERM_GROUPUSED,
237 ZFS_DELEG_PERM_GROUPQUOTA,
240 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
241 static int zfs_check_settable(const char *name, nvpair_t *property,
243 static int zfs_check_clearable(char *dataset, nvlist_t *props,
245 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
247 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *);
248 static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
250 #if defined(HAVE_DECLARE_EVENT_CLASS)
252 __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
256 char *buf = kmem_alloc(size, KM_SLEEP);
261 * Get rid of annoying prefix to filename.
263 newfile = strrchr(file, '/');
264 if (newfile != NULL) {
265 newfile = newfile + 1; /* Get rid of leading / */
271 (void) vsnprintf(buf, size, fmt, adx);
275 * Get rid of trailing newline.
277 nl = strrchr(buf, '\n');
282 * To get this data enable the zfs__dprintf trace point as shown:
284 * # Enable zfs__dprintf tracepoint, clear the tracepoint ring buffer
285 * $ echo 1 > /sys/module/zfs/parameters/zfs_flags
286 * $ echo 1 > /sys/kernel/debug/tracing/events/zfs/enable
287 * $ echo 0 > /sys/kernel/debug/tracing/trace
289 * # Dump the ring buffer.
290 * $ cat /sys/kernel/debug/tracing/trace
292 DTRACE_PROBE4(zfs__dprintf,
293 char *, newfile, char *, func, int, line, char *, buf);
295 kmem_free(buf, size);
297 #endif /* HAVE_DECLARE_EVENT_CLASS */
300 history_str_free(char *buf)
302 kmem_free(buf, HIS_MAX_RECORD_LEN);
306 history_str_get(zfs_cmd_t *zc)
310 if (zc->zc_history == 0)
313 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
314 if (copyinstr((void *)(uintptr_t)zc->zc_history,
315 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
316 history_str_free(buf);
320 buf[HIS_MAX_RECORD_LEN -1] = '\0';
326 * Check to see if the named dataset is currently defined as bootable
329 zfs_is_bootfs(const char *name)
333 if (dmu_objset_hold(name, FTAG, &os) == 0) {
335 ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os)));
336 dmu_objset_rele(os, FTAG);
343 * Return non-zero if the spa version is less than requested version.
346 zfs_earlier_version(const char *name, int version)
350 if (spa_open(name, &spa, FTAG) == 0) {
351 if (spa_version(spa) < version) {
352 spa_close(spa, FTAG);
355 spa_close(spa, FTAG);
361 * Return TRUE if the ZPL version is less than requested version.
364 zpl_earlier_version(const char *name, int version)
367 boolean_t rc = B_TRUE;
369 if (dmu_objset_hold(name, FTAG, &os) == 0) {
372 if (dmu_objset_type(os) != DMU_OST_ZFS) {
373 dmu_objset_rele(os, FTAG);
376 /* XXX reading from non-owned objset */
377 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
378 rc = zplversion < version;
379 dmu_objset_rele(os, FTAG);
385 zfs_log_history(zfs_cmd_t *zc)
390 if ((buf = history_str_get(zc)) == NULL)
393 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
394 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
395 (void) spa_history_log(spa, buf);
396 spa_close(spa, FTAG);
398 history_str_free(buf);
402 * Policy for top-level read operations (list pools). Requires no privileges,
403 * and can be used in the local zone, as there is no associated dataset.
407 zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
413 * Policy for dataset read operations (list children, get statistics). Requires
414 * no privileges, but must be visible in the local zone.
418 zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
420 if (INGLOBALZONE(curproc) ||
421 zone_dataset_visible(zc->zc_name, NULL))
424 return (SET_ERROR(ENOENT));
428 zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr)
433 * The dataset must be visible by this zone -- check this first
434 * so they don't see EPERM on something they shouldn't know about.
436 if (!INGLOBALZONE(curproc) &&
437 !zone_dataset_visible(dataset, &writable))
438 return (SET_ERROR(ENOENT));
440 if (INGLOBALZONE(curproc)) {
442 * If the fs is zoned, only root can access it from the
445 if (secpolicy_zfs(cr) && zoned)
446 return (SET_ERROR(EPERM));
449 * If we are in a local zone, the 'zoned' property must be set.
452 return (SET_ERROR(EPERM));
454 /* must be writable by this zone */
456 return (SET_ERROR(EPERM));
462 zfs_dozonecheck(const char *dataset, cred_t *cr)
466 if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
467 return (SET_ERROR(ENOENT));
469 return (zfs_dozonecheck_impl(dataset, zoned, cr));
473 zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr)
477 if (dsl_prop_get_int_ds(ds, "zoned", &zoned))
478 return (SET_ERROR(ENOENT));
480 return (zfs_dozonecheck_impl(dataset, zoned, cr));
484 zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
485 const char *perm, cred_t *cr)
489 error = zfs_dozonecheck_ds(name, ds, cr);
491 error = secpolicy_zfs(cr);
493 error = dsl_deleg_access_impl(ds, perm, cr);
499 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
505 error = dsl_pool_hold(name, FTAG, &dp);
509 error = dsl_dataset_hold(dp, name, FTAG, &ds);
511 dsl_pool_rele(dp, FTAG);
515 error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr);
517 dsl_dataset_rele(ds, FTAG);
518 dsl_pool_rele(dp, FTAG);
523 * Policy for setting the security label property.
525 * Returns 0 for success, non-zero for access and other errors.
528 zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
531 char ds_hexsl[MAXNAMELEN];
532 bslabel_t ds_sl, new_sl;
533 boolean_t new_default = FALSE;
535 int needed_priv = -1;
538 /* First get the existing dataset label. */
539 error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
540 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
542 return (SET_ERROR(EPERM));
544 if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
547 /* The label must be translatable */
548 if (!new_default && (hexstr_to_label(strval, &new_sl) != 0))
549 return (SET_ERROR(EINVAL));
552 * In a non-global zone, disallow attempts to set a label that
553 * doesn't match that of the zone; otherwise no other checks
556 if (!INGLOBALZONE(curproc)) {
557 if (new_default || !blequal(&new_sl, CR_SL(CRED())))
558 return (SET_ERROR(EPERM));
563 * For global-zone datasets (i.e., those whose zoned property is
564 * "off", verify that the specified new label is valid for the
567 if (dsl_prop_get_integer(name,
568 zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
569 return (SET_ERROR(EPERM));
571 if (zfs_check_global_label(name, strval) != 0)
572 return (SET_ERROR(EPERM));
576 * If the existing dataset label is nondefault, check if the
577 * dataset is mounted (label cannot be changed while mounted).
578 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
579 * mounted (or isn't a dataset, doesn't exist, ...).
581 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) {
583 static char *setsl_tag = "setsl_tag";
586 * Try to own the dataset; abort if there is any error,
587 * (e.g., already mounted, in use, or other error).
589 error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE,
592 return (SET_ERROR(EPERM));
594 dmu_objset_disown(os, setsl_tag);
597 needed_priv = PRIV_FILE_DOWNGRADE_SL;
601 if (hexstr_to_label(strval, &new_sl) != 0)
602 return (SET_ERROR(EPERM));
604 if (blstrictdom(&ds_sl, &new_sl))
605 needed_priv = PRIV_FILE_DOWNGRADE_SL;
606 else if (blstrictdom(&new_sl, &ds_sl))
607 needed_priv = PRIV_FILE_UPGRADE_SL;
609 /* dataset currently has a default label */
611 needed_priv = PRIV_FILE_UPGRADE_SL;
615 if (needed_priv != -1)
616 return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
620 #endif /* HAVE_MLSLABEL */
624 zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval,
630 * Check permissions for special properties.
637 * Disallow setting of 'zoned' from within a local zone.
639 if (!INGLOBALZONE(curproc))
640 return (SET_ERROR(EPERM));
644 case ZFS_PROP_FILESYSTEM_LIMIT:
645 case ZFS_PROP_SNAPSHOT_LIMIT:
646 if (!INGLOBALZONE(curproc)) {
648 char setpoint[MAXNAMELEN];
650 * Unprivileged users are allowed to modify the
651 * limit on things *under* (ie. contained by)
652 * the thing they own.
654 if (dsl_prop_get_integer(dsname, "zoned", &zoned,
656 return (SET_ERROR(EPERM));
657 if (!zoned || strlen(dsname) <= strlen(setpoint))
658 return (SET_ERROR(EPERM));
662 case ZFS_PROP_MLSLABEL:
663 if (!is_system_labeled())
664 return (SET_ERROR(EPERM));
666 if (nvpair_value_string(propval, &strval) == 0) {
669 err = zfs_set_slabel_policy(dsname, strval, CRED());
676 return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr));
681 zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
685 error = zfs_dozonecheck(zc->zc_name, cr);
690 * permission to set permissions will be evaluated later in
691 * dsl_deleg_can_allow()
698 zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
700 return (zfs_secpolicy_write_perms(zc->zc_name,
701 ZFS_DELEG_PERM_ROLLBACK, cr));
706 zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
714 * Generate the current snapshot name from the given objsetid, then
715 * use that name for the secpolicy/zone checks.
717 cp = strchr(zc->zc_name, '@');
719 return (SET_ERROR(EINVAL));
720 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
724 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
726 dsl_pool_rele(dp, FTAG);
730 dsl_dataset_name(ds, zc->zc_name);
732 error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds,
733 ZFS_DELEG_PERM_SEND, cr);
734 dsl_dataset_rele(ds, FTAG);
735 dsl_pool_rele(dp, FTAG);
742 zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
744 return (zfs_secpolicy_write_perms(zc->zc_name,
745 ZFS_DELEG_PERM_SEND, cr));
748 #ifdef HAVE_SMB_SHARE
751 zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
756 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
757 NO_FOLLOW, NULL, &vp)) != 0)
760 /* Now make sure mntpnt and dataset are ZFS */
762 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
763 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
764 zc->zc_name) != 0)) {
766 return (SET_ERROR(EPERM));
770 return (dsl_deleg_access(zc->zc_name,
771 ZFS_DELEG_PERM_SHARE, cr));
773 #endif /* HAVE_SMB_SHARE */
776 zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
778 #ifdef HAVE_SMB_SHARE
779 if (!INGLOBALZONE(curproc))
780 return (SET_ERROR(EPERM));
782 if (secpolicy_nfs(cr) == 0) {
785 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
788 return (SET_ERROR(ENOTSUP));
789 #endif /* HAVE_SMB_SHARE */
793 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
795 #ifdef HAVE_SMB_SHARE
796 if (!INGLOBALZONE(curproc))
797 return (SET_ERROR(EPERM));
799 if (secpolicy_smb(cr) == 0) {
802 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
805 return (SET_ERROR(ENOTSUP));
806 #endif /* HAVE_SMB_SHARE */
810 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
815 * Remove the @bla or /bla from the end of the name to get the parent.
817 (void) strncpy(parent, datasetname, parentsize);
818 cp = strrchr(parent, '@');
822 cp = strrchr(parent, '/');
824 return (SET_ERROR(ENOENT));
832 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
836 if ((error = zfs_secpolicy_write_perms(name,
837 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
840 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
845 zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
847 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
851 * Destroying snapshots with delegated permissions requires
852 * descendant mount and destroy permissions.
856 zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
859 nvpair_t *pair, *nextpair;
862 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
863 return (SET_ERROR(EINVAL));
864 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
866 nextpair = nvlist_next_nvpair(snaps, pair);
867 error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr);
868 if (error == ENOENT) {
870 * Ignore any snapshots that don't exist (we consider
871 * them "already destroyed"). Remove the name from the
872 * nvl here in case the snapshot is created between
873 * now and when we try to destroy it (in which case
874 * we don't want to destroy it since we haven't
875 * checked for permission).
877 fnvlist_remove_nvpair(snaps, pair);
888 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
890 char parentname[MAXNAMELEN];
893 if ((error = zfs_secpolicy_write_perms(from,
894 ZFS_DELEG_PERM_RENAME, cr)) != 0)
897 if ((error = zfs_secpolicy_write_perms(from,
898 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
901 if ((error = zfs_get_parent(to, parentname,
902 sizeof (parentname))) != 0)
905 if ((error = zfs_secpolicy_write_perms(parentname,
906 ZFS_DELEG_PERM_CREATE, cr)) != 0)
909 if ((error = zfs_secpolicy_write_perms(parentname,
910 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
918 zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
920 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
925 zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
928 dsl_dataset_t *clone;
931 error = zfs_secpolicy_write_perms(zc->zc_name,
932 ZFS_DELEG_PERM_PROMOTE, cr);
936 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
940 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone);
943 char parentname[MAXNAMELEN];
944 dsl_dataset_t *origin = NULL;
948 error = dsl_dataset_hold_obj(dd->dd_pool,
949 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin);
951 dsl_dataset_rele(clone, FTAG);
952 dsl_pool_rele(dp, FTAG);
956 error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone,
957 ZFS_DELEG_PERM_MOUNT, cr);
959 dsl_dataset_name(origin, parentname);
961 error = zfs_secpolicy_write_perms_ds(parentname, origin,
962 ZFS_DELEG_PERM_PROMOTE, cr);
964 dsl_dataset_rele(clone, FTAG);
965 dsl_dataset_rele(origin, FTAG);
967 dsl_pool_rele(dp, FTAG);
973 zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
977 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
978 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
981 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
982 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
985 return (zfs_secpolicy_write_perms(zc->zc_name,
986 ZFS_DELEG_PERM_CREATE, cr));
990 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
992 return (zfs_secpolicy_write_perms(name,
993 ZFS_DELEG_PERM_SNAPSHOT, cr));
997 * Check for permission to create each snapshot in the nvlist.
1001 zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1007 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
1008 return (SET_ERROR(EINVAL));
1009 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
1010 pair = nvlist_next_nvpair(snaps, pair)) {
1011 char *name = nvpair_name(pair);
1012 char *atp = strchr(name, '@');
1015 error = SET_ERROR(EINVAL);
1019 error = zfs_secpolicy_snapshot_perms(name, cr);
1028 * Check for permission to create each snapshot in the nvlist.
1032 zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1037 for (pair = nvlist_next_nvpair(innvl, NULL);
1038 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
1039 char *name = nvpair_name(pair);
1040 char *hashp = strchr(name, '#');
1042 if (hashp == NULL) {
1043 error = SET_ERROR(EINVAL);
1047 error = zfs_secpolicy_write_perms(name,
1048 ZFS_DELEG_PERM_BOOKMARK, cr);
1058 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1060 nvpair_t *pair, *nextpair;
1063 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1065 char *name = nvpair_name(pair);
1066 char *hashp = strchr(name, '#');
1067 nextpair = nvlist_next_nvpair(innvl, pair);
1069 if (hashp == NULL) {
1070 error = SET_ERROR(EINVAL);
1075 error = zfs_secpolicy_write_perms(name,
1076 ZFS_DELEG_PERM_DESTROY, cr);
1078 if (error == ENOENT) {
1080 * Ignore any filesystems that don't exist (we consider
1081 * their bookmarks "already destroyed"). Remove
1082 * the name from the nvl here in case the filesystem
1083 * is created between now and when we try to destroy
1084 * the bookmark (in which case we don't want to
1085 * destroy it since we haven't checked for permission).
1087 fnvlist_remove_nvpair(innvl, pair);
1099 zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1102 * Even root must have a proper TSD so that we know what pool
1105 if (tsd_get(zfs_allow_log_key) == NULL)
1106 return (SET_ERROR(EPERM));
1111 zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1113 char parentname[MAXNAMELEN];
1117 if ((error = zfs_get_parent(zc->zc_name, parentname,
1118 sizeof (parentname))) != 0)
1121 if (nvlist_lookup_string(innvl, "origin", &origin) == 0 &&
1122 (error = zfs_secpolicy_write_perms(origin,
1123 ZFS_DELEG_PERM_CLONE, cr)) != 0)
1126 if ((error = zfs_secpolicy_write_perms(parentname,
1127 ZFS_DELEG_PERM_CREATE, cr)) != 0)
1130 return (zfs_secpolicy_write_perms(parentname,
1131 ZFS_DELEG_PERM_MOUNT, cr));
1135 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1136 * SYS_CONFIG privilege, which is not available in a local zone.
1140 zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1142 if (secpolicy_sys_config(cr, B_FALSE) != 0)
1143 return (SET_ERROR(EPERM));
1149 * Policy for object to name lookups.
1153 zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1157 if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0)
1160 error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr);
1165 * Policy for fault injection. Requires all privileges.
1169 zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1171 return (secpolicy_zinject(cr));
1176 zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1178 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
1180 if (prop == ZPROP_INVAL) {
1181 if (!zfs_prop_user(zc->zc_value))
1182 return (SET_ERROR(EINVAL));
1183 return (zfs_secpolicy_write_perms(zc->zc_name,
1184 ZFS_DELEG_PERM_USERPROP, cr));
1186 return (zfs_secpolicy_setprop(zc->zc_name, prop,
1192 zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1194 int err = zfs_secpolicy_read(zc, innvl, cr);
1198 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
1199 return (SET_ERROR(EINVAL));
1201 if (zc->zc_value[0] == 0) {
1203 * They are asking about a posix uid/gid. If it's
1204 * themself, allow it.
1206 if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
1207 zc->zc_objset_type == ZFS_PROP_USERQUOTA) {
1208 if (zc->zc_guid == crgetuid(cr))
1211 if (groupmember(zc->zc_guid, cr))
1216 return (zfs_secpolicy_write_perms(zc->zc_name,
1217 userquota_perms[zc->zc_objset_type], cr));
1221 zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1223 int err = zfs_secpolicy_read(zc, innvl, cr);
1227 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
1228 return (SET_ERROR(EINVAL));
1230 return (zfs_secpolicy_write_perms(zc->zc_name,
1231 userquota_perms[zc->zc_objset_type], cr));
1236 zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1238 return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION,
1244 zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1250 error = nvlist_lookup_nvlist(innvl, "holds", &holds);
1252 return (SET_ERROR(EINVAL));
1254 for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
1255 pair = nvlist_next_nvpair(holds, pair)) {
1256 char fsname[MAXNAMELEN];
1257 error = dmu_fsname(nvpair_name(pair), fsname);
1260 error = zfs_secpolicy_write_perms(fsname,
1261 ZFS_DELEG_PERM_HOLD, cr);
1270 zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1275 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1276 pair = nvlist_next_nvpair(innvl, pair)) {
1277 char fsname[MAXNAMELEN];
1278 error = dmu_fsname(nvpair_name(pair), fsname);
1281 error = zfs_secpolicy_write_perms(fsname,
1282 ZFS_DELEG_PERM_RELEASE, cr);
1290 * Policy for allowing temporary snapshots to be taken or released
1293 zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1296 * A temporary snapshot is the same as a snapshot,
1297 * hold, destroy and release all rolled into one.
1298 * Delegated diff alone is sufficient that we allow this.
1302 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
1303 ZFS_DELEG_PERM_DIFF, cr)) == 0)
1306 error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr);
1308 error = zfs_secpolicy_hold(zc, innvl, cr);
1310 error = zfs_secpolicy_release(zc, innvl, cr);
1312 error = zfs_secpolicy_destroy(zc, innvl, cr);
1317 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1320 get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
1324 nvlist_t *list = NULL;
1327 * Read in and unpack the user-supplied nvlist.
1330 return (SET_ERROR(EINVAL));
1332 packed = vmem_alloc(size, KM_SLEEP);
1334 if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
1336 vmem_free(packed, size);
1340 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
1341 vmem_free(packed, size);
1345 vmem_free(packed, size);
1352 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1353 * Entries will be removed from the end of the nvlist, and one int32 entry
1354 * named "N_MORE_ERRORS" will be added indicating how many entries were
1358 nvlist_smush(nvlist_t *errors, size_t max)
1362 size = fnvlist_size(errors);
1365 nvpair_t *more_errors;
1369 return (SET_ERROR(ENOMEM));
1371 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0);
1372 more_errors = nvlist_prev_nvpair(errors, NULL);
1375 nvpair_t *pair = nvlist_prev_nvpair(errors,
1377 fnvlist_remove_nvpair(errors, pair);
1379 size = fnvlist_size(errors);
1380 } while (size > max);
1382 fnvlist_remove_nvpair(errors, more_errors);
1383 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n);
1384 ASSERT3U(fnvlist_size(errors), <=, max);
1391 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1393 char *packed = NULL;
1397 size = fnvlist_size(nvl);
1399 if (size > zc->zc_nvlist_dst_size) {
1400 error = SET_ERROR(ENOMEM);
1402 packed = fnvlist_pack(nvl, &size);
1403 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1404 size, zc->zc_iflags) != 0)
1405 error = SET_ERROR(EFAULT);
1406 fnvlist_pack_free(packed, size);
1409 zc->zc_nvlist_dst_size = size;
1410 zc->zc_nvlist_dst_filled = B_TRUE;
1415 get_zfs_sb(const char *dsname, zfs_sb_t **zsbp)
1420 error = dmu_objset_hold(dsname, FTAG, &os);
1423 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1424 dmu_objset_rele(os, FTAG);
1425 return (SET_ERROR(EINVAL));
1428 mutex_enter(&os->os_user_ptr_lock);
1429 *zsbp = dmu_objset_get_user(os);
1430 if (*zsbp && (*zsbp)->z_sb) {
1431 atomic_inc(&((*zsbp)->z_sb->s_active));
1433 error = SET_ERROR(ESRCH);
1435 mutex_exit(&os->os_user_ptr_lock);
1436 dmu_objset_rele(os, FTAG);
1441 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1442 * case its z_sb will be NULL, and it will be opened as the owner.
1443 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1444 * which prevents all inode ops from running.
1447 zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer)
1451 if (get_zfs_sb(name, zsbp) != 0)
1452 error = zfs_sb_create(name, zsbp);
1454 rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER :
1456 if ((*zsbp)->z_unmounted) {
1458 * XXX we could probably try again, since the unmounting
1459 * thread should be just about to disassociate the
1460 * objset from the zsb.
1462 rrw_exit(&(*zsbp)->z_teardown_lock, tag);
1463 return (SET_ERROR(EBUSY));
1470 zfs_sb_rele(zfs_sb_t *zsb, void *tag)
1472 rrw_exit(&zsb->z_teardown_lock, tag);
1475 deactivate_super(zsb->z_sb);
1477 dmu_objset_disown(zsb->z_os, zsb);
1483 zfs_ioc_pool_create(zfs_cmd_t *zc)
1486 nvlist_t *config, *props = NULL;
1487 nvlist_t *rootprops = NULL;
1488 nvlist_t *zplprops = NULL;
1490 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1491 zc->zc_iflags, &config)))
1494 if (zc->zc_nvlist_src_size != 0 && (error =
1495 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1496 zc->zc_iflags, &props))) {
1497 nvlist_free(config);
1502 nvlist_t *nvl = NULL;
1503 uint64_t version = SPA_VERSION;
1505 (void) nvlist_lookup_uint64(props,
1506 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1507 if (!SPA_VERSION_IS_SUPPORTED(version)) {
1508 error = SET_ERROR(EINVAL);
1509 goto pool_props_bad;
1511 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
1513 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
1515 nvlist_free(config);
1519 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1521 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1522 error = zfs_fill_zplprops_root(version, rootprops,
1525 goto pool_props_bad;
1528 error = spa_create(zc->zc_name, config, props, zplprops);
1531 * Set the remaining root properties
1533 if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
1534 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1535 (void) spa_destroy(zc->zc_name);
1538 nvlist_free(rootprops);
1539 nvlist_free(zplprops);
1540 nvlist_free(config);
1547 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1550 zfs_log_history(zc);
1551 error = spa_destroy(zc->zc_name);
1553 zvol_remove_minors(zc->zc_name);
1558 zfs_ioc_pool_import(zfs_cmd_t *zc)
1560 nvlist_t *config, *props = NULL;
1564 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1565 zc->zc_iflags, &config)) != 0)
1568 if (zc->zc_nvlist_src_size != 0 && (error =
1569 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1570 zc->zc_iflags, &props))) {
1571 nvlist_free(config);
1575 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1576 guid != zc->zc_guid)
1577 error = SET_ERROR(EINVAL);
1579 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1581 if (zc->zc_nvlist_dst != 0) {
1584 if ((err = put_nvlist(zc, config)) != 0)
1588 nvlist_free(config);
1597 zfs_ioc_pool_export(zfs_cmd_t *zc)
1600 boolean_t force = (boolean_t)zc->zc_cookie;
1601 boolean_t hardforce = (boolean_t)zc->zc_guid;
1603 zfs_log_history(zc);
1604 error = spa_export(zc->zc_name, NULL, force, hardforce);
1606 zvol_remove_minors(zc->zc_name);
1611 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1616 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1617 return (SET_ERROR(EEXIST));
1619 error = put_nvlist(zc, configs);
1621 nvlist_free(configs);
1628 * zc_name name of the pool
1631 * zc_cookie real errno
1632 * zc_nvlist_dst config nvlist
1633 * zc_nvlist_dst_size size of config nvlist
1636 zfs_ioc_pool_stats(zfs_cmd_t *zc)
1642 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
1643 sizeof (zc->zc_value));
1645 if (config != NULL) {
1646 ret = put_nvlist(zc, config);
1647 nvlist_free(config);
1650 * The config may be present even if 'error' is non-zero.
1651 * In this case we return success, and preserve the real errno
1654 zc->zc_cookie = error;
1663 * Try to import the given pool, returning pool stats as appropriate so that
1664 * user land knows which devices are available and overall pool health.
1667 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
1669 nvlist_t *tryconfig, *config;
1672 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1673 zc->zc_iflags, &tryconfig)) != 0)
1676 config = spa_tryimport(tryconfig);
1678 nvlist_free(tryconfig);
1681 return (SET_ERROR(EINVAL));
1683 error = put_nvlist(zc, config);
1684 nvlist_free(config);
1691 * zc_name name of the pool
1692 * zc_cookie scan func (pool_scan_func_t)
1695 zfs_ioc_pool_scan(zfs_cmd_t *zc)
1700 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1703 if (zc->zc_cookie == POOL_SCAN_NONE)
1704 error = spa_scan_stop(spa);
1706 error = spa_scan(spa, zc->zc_cookie);
1708 spa_close(spa, FTAG);
1714 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1719 error = spa_open(zc->zc_name, &spa, FTAG);
1722 spa_close(spa, FTAG);
1728 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1733 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1736 if (zc->zc_cookie < spa_version(spa) ||
1737 !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) {
1738 spa_close(spa, FTAG);
1739 return (SET_ERROR(EINVAL));
1742 spa_upgrade(spa, zc->zc_cookie);
1743 spa_close(spa, FTAG);
1749 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
1756 if ((size = zc->zc_history_len) == 0)
1757 return (SET_ERROR(EINVAL));
1759 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1762 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1763 spa_close(spa, FTAG);
1764 return (SET_ERROR(ENOTSUP));
1767 hist_buf = vmem_alloc(size, KM_SLEEP);
1768 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1769 &zc->zc_history_len, hist_buf)) == 0) {
1770 error = ddi_copyout(hist_buf,
1771 (void *)(uintptr_t)zc->zc_history,
1772 zc->zc_history_len, zc->zc_iflags);
1775 spa_close(spa, FTAG);
1776 vmem_free(hist_buf, size);
1781 zfs_ioc_pool_reguid(zfs_cmd_t *zc)
1786 error = spa_open(zc->zc_name, &spa, FTAG);
1788 error = spa_change_guid(spa);
1789 spa_close(spa, FTAG);
1795 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1797 return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value));
1802 * zc_name name of filesystem
1803 * zc_obj object to find
1806 * zc_value name of object
1809 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1814 /* XXX reading from objset not owned */
1815 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1817 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1818 dmu_objset_rele(os, FTAG);
1819 return (SET_ERROR(EINVAL));
1821 error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
1822 sizeof (zc->zc_value));
1823 dmu_objset_rele(os, FTAG);
1830 * zc_name name of filesystem
1831 * zc_obj object to find
1834 * zc_stat stats on object
1835 * zc_value path to object
1838 zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
1843 /* XXX reading from objset not owned */
1844 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1846 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1847 dmu_objset_rele(os, FTAG);
1848 return (SET_ERROR(EINVAL));
1850 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
1851 sizeof (zc->zc_value));
1852 dmu_objset_rele(os, FTAG);
1858 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1864 error = spa_open(zc->zc_name, &spa, FTAG);
1868 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1869 zc->zc_iflags, &config);
1871 error = spa_vdev_add(spa, config);
1872 nvlist_free(config);
1874 spa_close(spa, FTAG);
1880 * zc_name name of the pool
1881 * zc_nvlist_conf nvlist of devices to remove
1882 * zc_cookie to stop the remove?
1885 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1890 error = spa_open(zc->zc_name, &spa, FTAG);
1893 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1894 spa_close(spa, FTAG);
1899 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1903 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1905 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1907 switch (zc->zc_cookie) {
1908 case VDEV_STATE_ONLINE:
1909 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1912 case VDEV_STATE_OFFLINE:
1913 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1916 case VDEV_STATE_FAULTED:
1917 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1918 zc->zc_obj != VDEV_AUX_EXTERNAL)
1919 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1921 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
1924 case VDEV_STATE_DEGRADED:
1925 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1926 zc->zc_obj != VDEV_AUX_EXTERNAL)
1927 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1929 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
1933 error = SET_ERROR(EINVAL);
1935 zc->zc_cookie = newstate;
1936 spa_close(spa, FTAG);
1941 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1944 int replacing = zc->zc_cookie;
1948 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1951 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1952 zc->zc_iflags, &config)) == 0) {
1953 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1954 nvlist_free(config);
1957 spa_close(spa, FTAG);
1962 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1967 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1970 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
1972 spa_close(spa, FTAG);
1977 zfs_ioc_vdev_split(zfs_cmd_t *zc)
1980 nvlist_t *config, *props = NULL;
1982 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
1984 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1987 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1988 zc->zc_iflags, &config))) {
1989 spa_close(spa, FTAG);
1993 if (zc->zc_nvlist_src_size != 0 && (error =
1994 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1995 zc->zc_iflags, &props))) {
1996 spa_close(spa, FTAG);
1997 nvlist_free(config);
2001 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
2003 spa_close(spa, FTAG);
2005 nvlist_free(config);
2012 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
2015 char *path = zc->zc_value;
2016 uint64_t guid = zc->zc_guid;
2019 error = spa_open(zc->zc_name, &spa, FTAG);
2023 error = spa_vdev_setpath(spa, guid, path);
2024 spa_close(spa, FTAG);
2029 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
2032 char *fru = zc->zc_value;
2033 uint64_t guid = zc->zc_guid;
2036 error = spa_open(zc->zc_name, &spa, FTAG);
2040 error = spa_vdev_setfru(spa, guid, fru);
2041 spa_close(spa, FTAG);
2046 zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os)
2051 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
2053 if (zc->zc_nvlist_dst != 0 &&
2054 (error = dsl_prop_get_all(os, &nv)) == 0) {
2055 dmu_objset_stats(os, nv);
2057 * NB: zvol_get_stats() will read the objset contents,
2058 * which we aren't supposed to do with a
2059 * DS_MODE_USER hold, because it could be
2060 * inconsistent. So this is a bit of a workaround...
2061 * XXX reading with out owning
2063 if (!zc->zc_objset_stats.dds_inconsistent &&
2064 dmu_objset_type(os) == DMU_OST_ZVOL) {
2065 error = zvol_get_stats(os, nv);
2071 error = put_nvlist(zc, nv);
2080 * zc_name name of filesystem
2081 * zc_nvlist_dst_size size of buffer for property nvlist
2084 * zc_objset_stats stats
2085 * zc_nvlist_dst property nvlist
2086 * zc_nvlist_dst_size size of property nvlist
2089 zfs_ioc_objset_stats(zfs_cmd_t *zc)
2094 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2096 error = zfs_ioc_objset_stats_impl(zc, os);
2097 dmu_objset_rele(os, FTAG);
2105 * zc_name name of filesystem
2106 * zc_nvlist_dst_size size of buffer for property nvlist
2109 * zc_nvlist_dst received property nvlist
2110 * zc_nvlist_dst_size size of received property nvlist
2112 * Gets received properties (distinct from local properties on or after
2113 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2114 * local property values.
2117 zfs_ioc_objset_recvd_props(zfs_cmd_t *zc)
2123 * Without this check, we would return local property values if the
2124 * caller has not already received properties on or after
2125 * SPA_VERSION_RECVD_PROPS.
2127 if (!dsl_prop_get_hasrecvd(zc->zc_name))
2128 return (SET_ERROR(ENOTSUP));
2130 if (zc->zc_nvlist_dst != 0 &&
2131 (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) {
2132 error = put_nvlist(zc, nv);
2140 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
2146 * zfs_get_zplprop() will either find a value or give us
2147 * the default value (if there is one).
2149 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
2151 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
2157 * zc_name name of filesystem
2158 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2161 * zc_nvlist_dst zpl property nvlist
2162 * zc_nvlist_dst_size size of zpl property nvlist
2165 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
2170 /* XXX reading without owning */
2171 if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os)))
2174 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
2177 * NB: nvl_add_zplprop() will read the objset contents,
2178 * which we aren't supposed to do with a DS_MODE_USER
2179 * hold, because it could be inconsistent.
2181 if (zc->zc_nvlist_dst != 0 &&
2182 !zc->zc_objset_stats.dds_inconsistent &&
2183 dmu_objset_type(os) == DMU_OST_ZFS) {
2186 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2187 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
2188 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
2189 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
2190 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
2191 err = put_nvlist(zc, nv);
2194 err = SET_ERROR(ENOENT);
2196 dmu_objset_rele(os, FTAG);
2201 dataset_name_hidden(const char *name)
2204 * Skip over datasets that are not visible in this zone,
2205 * internal datasets (which have a $ in their name), and
2206 * temporary datasets (which have a % in their name).
2208 if (strchr(name, '$') != NULL)
2210 if (strchr(name, '%') != NULL)
2212 if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL))
2219 * zc_name name of filesystem
2220 * zc_cookie zap cursor
2221 * zc_nvlist_dst_size size of buffer for property nvlist
2224 * zc_name name of next filesystem
2225 * zc_cookie zap cursor
2226 * zc_objset_stats stats
2227 * zc_nvlist_dst property nvlist
2228 * zc_nvlist_dst_size size of property nvlist
2231 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
2236 size_t orig_len = strlen(zc->zc_name);
2239 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) {
2240 if (error == ENOENT)
2241 error = SET_ERROR(ESRCH);
2245 p = strrchr(zc->zc_name, '/');
2246 if (p == NULL || p[1] != '\0')
2247 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
2248 p = zc->zc_name + strlen(zc->zc_name);
2251 error = dmu_dir_list_next(os,
2252 sizeof (zc->zc_name) - (p - zc->zc_name), p,
2253 NULL, &zc->zc_cookie);
2254 if (error == ENOENT)
2255 error = SET_ERROR(ESRCH);
2256 } while (error == 0 && dataset_name_hidden(zc->zc_name));
2257 dmu_objset_rele(os, FTAG);
2260 * If it's an internal dataset (ie. with a '$' in its name),
2261 * don't try to get stats for it, otherwise we'll return ENOENT.
2263 if (error == 0 && strchr(zc->zc_name, '$') == NULL) {
2264 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
2265 if (error == ENOENT) {
2266 /* We lost a race with destroy, get the next one. */
2267 zc->zc_name[orig_len] = '\0';
2276 * zc_name name of filesystem
2277 * zc_cookie zap cursor
2278 * zc_nvlist_dst_size size of buffer for property nvlist
2281 * zc_name name of next snapshot
2282 * zc_objset_stats stats
2283 * zc_nvlist_dst property nvlist
2284 * zc_nvlist_dst_size size of property nvlist
2287 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
2292 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2294 return (error == ENOENT ? ESRCH : error);
2298 * A dataset name of maximum length cannot have any snapshots,
2299 * so exit immediately.
2301 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
2302 dmu_objset_rele(os, FTAG);
2303 return (SET_ERROR(ESRCH));
2306 error = dmu_snapshot_list_next(os,
2307 sizeof (zc->zc_name) - strlen(zc->zc_name),
2308 zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie,
2311 if (error == 0 && !zc->zc_simple) {
2313 dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
2315 error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds);
2319 error = dmu_objset_from_ds(ds, &ossnap);
2321 error = zfs_ioc_objset_stats_impl(zc, ossnap);
2322 dsl_dataset_rele(ds, FTAG);
2324 } else if (error == ENOENT) {
2325 error = SET_ERROR(ESRCH);
2328 dmu_objset_rele(os, FTAG);
2329 /* if we failed, undo the @ that we tacked on to zc_name */
2331 *strchr(zc->zc_name, '@') = '\0';
2336 zfs_prop_set_userquota(const char *dsname, nvpair_t *pair)
2338 const char *propname = nvpair_name(pair);
2340 unsigned int vallen;
2343 zfs_userquota_prop_t type;
2349 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2351 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2352 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2354 return (SET_ERROR(EINVAL));
2358 * A correctly constructed propname is encoded as
2359 * userquota@<rid>-<domain>.
2361 if ((dash = strchr(propname, '-')) == NULL ||
2362 nvpair_value_uint64_array(pair, &valary, &vallen) != 0 ||
2364 return (SET_ERROR(EINVAL));
2371 err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE);
2373 err = zfs_set_userquota(zsb, type, domain, rid, quota);
2374 zfs_sb_rele(zsb, FTAG);
2381 * If the named property is one that has a special function to set its value,
2382 * return 0 on success and a positive error code on failure; otherwise if it is
2383 * not one of the special properties handled by this function, return -1.
2385 * XXX: It would be better for callers of the property interface if we handled
2386 * these special cases in dsl_prop.c (in the dsl layer).
2389 zfs_prop_set_special(const char *dsname, zprop_source_t source,
2392 const char *propname = nvpair_name(pair);
2393 zfs_prop_t prop = zfs_name_to_prop(propname);
2397 if (prop == ZPROP_INVAL) {
2398 if (zfs_prop_userquota(propname))
2399 return (zfs_prop_set_userquota(dsname, pair));
2403 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2405 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2406 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2410 if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
2413 VERIFY(0 == nvpair_value_uint64(pair, &intval));
2416 case ZFS_PROP_QUOTA:
2417 err = dsl_dir_set_quota(dsname, source, intval);
2419 case ZFS_PROP_REFQUOTA:
2420 err = dsl_dataset_set_refquota(dsname, source, intval);
2422 case ZFS_PROP_FILESYSTEM_LIMIT:
2423 case ZFS_PROP_SNAPSHOT_LIMIT:
2424 if (intval == UINT64_MAX) {
2425 /* clearing the limit, just do it */
2428 err = dsl_dir_activate_fs_ss_limit(dsname);
2431 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2432 * default path to set the value in the nvlist.
2437 case ZFS_PROP_RESERVATION:
2438 err = dsl_dir_set_reservation(dsname, source, intval);
2440 case ZFS_PROP_REFRESERVATION:
2441 err = dsl_dataset_set_refreservation(dsname, source, intval);
2443 case ZFS_PROP_VOLSIZE:
2444 err = zvol_set_volsize(dsname, intval);
2446 case ZFS_PROP_SNAPDEV:
2447 err = zvol_set_snapdev(dsname, intval);
2449 case ZFS_PROP_VERSION:
2453 if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0)
2456 err = zfs_set_version(zsb, intval);
2457 zfs_sb_rele(zsb, FTAG);
2459 if (err == 0 && intval >= ZPL_VERSION_USERSPACE) {
2462 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
2463 (void) strcpy(zc->zc_name, dsname);
2464 (void) zfs_ioc_userspace_upgrade(zc);
2465 kmem_free(zc, sizeof (zfs_cmd_t));
2477 * This function is best effort. If it fails to set any of the given properties,
2478 * it continues to set as many as it can and returns the last error
2479 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2480 * with the list of names of all the properties that failed along with the
2481 * corresponding error numbers.
2483 * If every property is set successfully, zero is returned and errlist is not
2487 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2496 nvlist_t *genericnvl = fnvlist_alloc();
2497 nvlist_t *retrynvl = fnvlist_alloc();
2500 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2501 const char *propname = nvpair_name(pair);
2502 zfs_prop_t prop = zfs_name_to_prop(propname);
2505 /* decode the property value */
2507 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2509 attrs = fnvpair_value_nvlist(pair);
2510 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2512 err = SET_ERROR(EINVAL);
2515 /* Validate value type */
2516 if (err == 0 && prop == ZPROP_INVAL) {
2517 if (zfs_prop_user(propname)) {
2518 if (nvpair_type(propval) != DATA_TYPE_STRING)
2519 err = SET_ERROR(EINVAL);
2520 } else if (zfs_prop_userquota(propname)) {
2521 if (nvpair_type(propval) !=
2522 DATA_TYPE_UINT64_ARRAY)
2523 err = SET_ERROR(EINVAL);
2525 err = SET_ERROR(EINVAL);
2527 } else if (err == 0) {
2528 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2529 if (zfs_prop_get_type(prop) != PROP_TYPE_STRING)
2530 err = SET_ERROR(EINVAL);
2531 } else if (nvpair_type(propval) == DATA_TYPE_UINT64) {
2534 intval = fnvpair_value_uint64(propval);
2536 switch (zfs_prop_get_type(prop)) {
2537 case PROP_TYPE_NUMBER:
2539 case PROP_TYPE_STRING:
2540 err = SET_ERROR(EINVAL);
2542 case PROP_TYPE_INDEX:
2543 if (zfs_prop_index_to_string(prop,
2544 intval, &unused) != 0)
2545 err = SET_ERROR(EINVAL);
2549 "unknown property type");
2552 err = SET_ERROR(EINVAL);
2556 /* Validate permissions */
2558 err = zfs_check_settable(dsname, pair, CRED());
2561 err = zfs_prop_set_special(dsname, source, pair);
2564 * For better performance we build up a list of
2565 * properties to set in a single transaction.
2567 err = nvlist_add_nvpair(genericnvl, pair);
2568 } else if (err != 0 && nvl != retrynvl) {
2570 * This may be a spurious error caused by
2571 * receiving quota and reservation out of order.
2572 * Try again in a second pass.
2574 err = nvlist_add_nvpair(retrynvl, pair);
2579 if (errlist != NULL)
2580 fnvlist_add_int32(errlist, propname, err);
2585 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2590 if (!nvlist_empty(genericnvl) &&
2591 dsl_props_set(dsname, source, genericnvl) != 0) {
2593 * If this fails, we still want to set as many properties as we
2594 * can, so try setting them individually.
2597 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2598 const char *propname = nvpair_name(pair);
2602 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2604 attrs = fnvpair_value_nvlist(pair);
2605 propval = fnvlist_lookup_nvpair(attrs,
2609 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2610 strval = fnvpair_value_string(propval);
2611 err = dsl_prop_set_string(dsname, propname,
2614 intval = fnvpair_value_uint64(propval);
2615 err = dsl_prop_set_int(dsname, propname, source,
2620 if (errlist != NULL) {
2621 fnvlist_add_int32(errlist, propname,
2628 nvlist_free(genericnvl);
2629 nvlist_free(retrynvl);
2635 * Check that all the properties are valid user properties.
2638 zfs_check_userprops(const char *fsname, nvlist_t *nvl)
2640 nvpair_t *pair = NULL;
2643 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2644 const char *propname = nvpair_name(pair);
2646 if (!zfs_prop_user(propname) ||
2647 nvpair_type(pair) != DATA_TYPE_STRING)
2648 return (SET_ERROR(EINVAL));
2650 if ((error = zfs_secpolicy_write_perms(fsname,
2651 ZFS_DELEG_PERM_USERPROP, CRED())))
2654 if (strlen(propname) >= ZAP_MAXNAMELEN)
2655 return (SET_ERROR(ENAMETOOLONG));
2657 if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN)
2658 return (SET_ERROR(E2BIG));
2664 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2668 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2671 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2672 if (nvlist_exists(skipped, nvpair_name(pair)))
2675 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2680 clear_received_props(const char *dsname, nvlist_t *props,
2684 nvlist_t *cleared_props = NULL;
2685 props_skip(props, skipped, &cleared_props);
2686 if (!nvlist_empty(cleared_props)) {
2688 * Acts on local properties until the dataset has received
2689 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2691 zprop_source_t flags = (ZPROP_SRC_NONE |
2692 (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0));
2693 err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL);
2695 nvlist_free(cleared_props);
2701 * zc_name name of filesystem
2702 * zc_value name of property to set
2703 * zc_nvlist_src{_size} nvlist of properties to apply
2704 * zc_cookie received properties flag
2707 * zc_nvlist_dst{_size} error for each unapplied received property
2710 zfs_ioc_set_prop(zfs_cmd_t *zc)
2713 boolean_t received = zc->zc_cookie;
2714 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2719 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2720 zc->zc_iflags, &nvl)) != 0)
2724 nvlist_t *origprops;
2726 if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) {
2727 (void) clear_received_props(zc->zc_name,
2729 nvlist_free(origprops);
2732 error = dsl_prop_set_hasrecvd(zc->zc_name);
2735 errors = fnvlist_alloc();
2737 error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors);
2739 if (zc->zc_nvlist_dst != 0 && errors != NULL) {
2740 (void) put_nvlist(zc, errors);
2743 nvlist_free(errors);
2750 * zc_name name of filesystem
2751 * zc_value name of property to inherit
2752 * zc_cookie revert to received value if TRUE
2757 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
2759 const char *propname = zc->zc_value;
2760 zfs_prop_t prop = zfs_name_to_prop(propname);
2761 boolean_t received = zc->zc_cookie;
2762 zprop_source_t source = (received
2763 ? ZPROP_SRC_NONE /* revert to received value, if any */
2764 : ZPROP_SRC_INHERITED); /* explicitly inherit */
2773 * zfs_prop_set_special() expects properties in the form of an
2774 * nvpair with type info.
2776 if (prop == ZPROP_INVAL) {
2777 if (!zfs_prop_user(propname))
2778 return (SET_ERROR(EINVAL));
2780 type = PROP_TYPE_STRING;
2781 } else if (prop == ZFS_PROP_VOLSIZE ||
2782 prop == ZFS_PROP_VERSION) {
2783 return (SET_ERROR(EINVAL));
2785 type = zfs_prop_get_type(prop);
2788 VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2791 case PROP_TYPE_STRING:
2792 VERIFY(0 == nvlist_add_string(dummy, propname, ""));
2794 case PROP_TYPE_NUMBER:
2795 case PROP_TYPE_INDEX:
2796 VERIFY(0 == nvlist_add_uint64(dummy, propname, 0));
2800 return (SET_ERROR(EINVAL));
2803 pair = nvlist_next_nvpair(dummy, NULL);
2804 err = zfs_prop_set_special(zc->zc_name, source, pair);
2807 return (err); /* special property already handled */
2810 * Only check this in the non-received case. We want to allow
2811 * 'inherit -S' to revert non-inheritable properties like quota
2812 * and reservation to the received or default values even though
2813 * they are not considered inheritable.
2815 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
2816 return (SET_ERROR(EINVAL));
2819 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2820 return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source));
2824 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
2831 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2832 zc->zc_iflags, &props)))
2836 * If the only property is the configfile, then just do a spa_lookup()
2837 * to handle the faulted case.
2839 pair = nvlist_next_nvpair(props, NULL);
2840 if (pair != NULL && strcmp(nvpair_name(pair),
2841 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
2842 nvlist_next_nvpair(props, pair) == NULL) {
2843 mutex_enter(&spa_namespace_lock);
2844 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
2845 spa_configfile_set(spa, props, B_FALSE);
2846 spa_config_sync(spa, B_FALSE, B_TRUE);
2848 mutex_exit(&spa_namespace_lock);
2855 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2860 error = spa_prop_set(spa, props);
2863 spa_close(spa, FTAG);
2869 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
2873 nvlist_t *nvp = NULL;
2875 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2877 * If the pool is faulted, there may be properties we can still
2878 * get (such as altroot and cachefile), so attempt to get them
2881 mutex_enter(&spa_namespace_lock);
2882 if ((spa = spa_lookup(zc->zc_name)) != NULL)
2883 error = spa_prop_get(spa, &nvp);
2884 mutex_exit(&spa_namespace_lock);
2886 error = spa_prop_get(spa, &nvp);
2887 spa_close(spa, FTAG);
2890 if (error == 0 && zc->zc_nvlist_dst != 0)
2891 error = put_nvlist(zc, nvp);
2893 error = SET_ERROR(EFAULT);
2901 * zc_name name of filesystem
2902 * zc_nvlist_src{_size} nvlist of delegated permissions
2903 * zc_perm_action allow/unallow flag
2908 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
2911 nvlist_t *fsaclnv = NULL;
2913 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2914 zc->zc_iflags, &fsaclnv)) != 0)
2918 * Verify nvlist is constructed correctly
2920 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
2921 nvlist_free(fsaclnv);
2922 return (SET_ERROR(EINVAL));
2926 * If we don't have PRIV_SYS_MOUNT, then validate
2927 * that user is allowed to hand out each permission in
2931 error = secpolicy_zfs(CRED());
2933 if (zc->zc_perm_action == B_FALSE) {
2934 error = dsl_deleg_can_allow(zc->zc_name,
2937 error = dsl_deleg_can_unallow(zc->zc_name,
2943 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
2945 nvlist_free(fsaclnv);
2951 * zc_name name of filesystem
2954 * zc_nvlist_src{_size} nvlist of delegated permissions
2957 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
2962 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
2963 error = put_nvlist(zc, nvp);
2972 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
2974 zfs_creat_t *zct = arg;
2976 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
2979 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2983 * os parent objset pointer (NULL if root fs)
2984 * fuids_ok fuids allowed in this version of the spa?
2985 * sa_ok SAs allowed in this version of the spa?
2986 * createprops list of properties requested by creator
2989 * zplprops values for the zplprops we attach to the master node object
2990 * is_ci true if requested file system will be purely case-insensitive
2992 * Determine the settings for utf8only, normalization and
2993 * casesensitivity. Specific values may have been requested by the
2994 * creator and/or we can inherit values from the parent dataset. If
2995 * the file system is of too early a vintage, a creator can not
2996 * request settings for these properties, even if the requested
2997 * setting is the default value. We don't actually want to create dsl
2998 * properties for these, so remove them from the source nvlist after
3002 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
3003 boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops,
3004 nvlist_t *zplprops, boolean_t *is_ci)
3006 uint64_t sense = ZFS_PROP_UNDEFINED;
3007 uint64_t norm = ZFS_PROP_UNDEFINED;
3008 uint64_t u8 = ZFS_PROP_UNDEFINED;
3011 ASSERT(zplprops != NULL);
3014 * Pull out creator prop choices, if any.
3017 (void) nvlist_lookup_uint64(createprops,
3018 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
3019 (void) nvlist_lookup_uint64(createprops,
3020 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
3021 (void) nvlist_remove_all(createprops,
3022 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
3023 (void) nvlist_lookup_uint64(createprops,
3024 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
3025 (void) nvlist_remove_all(createprops,
3026 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
3027 (void) nvlist_lookup_uint64(createprops,
3028 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
3029 (void) nvlist_remove_all(createprops,
3030 zfs_prop_to_name(ZFS_PROP_CASE));
3034 * If the zpl version requested is whacky or the file system
3035 * or pool is version is too "young" to support normalization
3036 * and the creator tried to set a value for one of the props,
3039 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
3040 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
3041 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
3042 (zplver < ZPL_VERSION_NORMALIZATION &&
3043 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
3044 sense != ZFS_PROP_UNDEFINED)))
3045 return (SET_ERROR(ENOTSUP));
3048 * Put the version in the zplprops
3050 VERIFY(nvlist_add_uint64(zplprops,
3051 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
3053 if (norm == ZFS_PROP_UNDEFINED &&
3054 (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0)
3056 VERIFY(nvlist_add_uint64(zplprops,
3057 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
3060 * If we're normalizing, names must always be valid UTF-8 strings.
3064 if (u8 == ZFS_PROP_UNDEFINED &&
3065 (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0)
3067 VERIFY(nvlist_add_uint64(zplprops,
3068 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
3070 if (sense == ZFS_PROP_UNDEFINED &&
3071 (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0)
3073 VERIFY(nvlist_add_uint64(zplprops,
3074 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
3077 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
3083 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
3084 nvlist_t *zplprops, boolean_t *is_ci)
3086 boolean_t fuids_ok, sa_ok;
3087 uint64_t zplver = ZPL_VERSION;
3088 objset_t *os = NULL;
3089 char parentname[MAXNAMELEN];
3095 (void) strlcpy(parentname, dataset, sizeof (parentname));
3096 cp = strrchr(parentname, '/');
3100 if ((error = spa_open(dataset, &spa, FTAG)) != 0)
3103 spa_vers = spa_version(spa);
3104 spa_close(spa, FTAG);
3106 zplver = zfs_zpl_version_map(spa_vers);
3107 fuids_ok = (zplver >= ZPL_VERSION_FUID);
3108 sa_ok = (zplver >= ZPL_VERSION_SA);
3111 * Open parent object set so we can inherit zplprop values.
3113 if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0)
3116 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops,
3118 dmu_objset_rele(os, FTAG);
3123 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
3124 nvlist_t *zplprops, boolean_t *is_ci)
3128 uint64_t zplver = ZPL_VERSION;
3131 zplver = zfs_zpl_version_map(spa_vers);
3132 fuids_ok = (zplver >= ZPL_VERSION_FUID);
3133 sa_ok = (zplver >= ZPL_VERSION_SA);
3135 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok,
3136 createprops, zplprops, is_ci);
3142 * "type" -> dmu_objset_type_t (int32)
3143 * (optional) "props" -> { prop -> value }
3146 * outnvl: propname -> error code (int32)
3149 zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3152 zfs_creat_t zct = { 0 };
3153 nvlist_t *nvprops = NULL;
3154 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
3156 dmu_objset_type_t type;
3157 boolean_t is_insensitive = B_FALSE;
3159 if (nvlist_lookup_int32(innvl, "type", &type32) != 0)
3160 return (SET_ERROR(EINVAL));
3162 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3166 cbfunc = zfs_create_cb;
3170 cbfunc = zvol_create_cb;
3177 if (strchr(fsname, '@') ||
3178 strchr(fsname, '%'))
3179 return (SET_ERROR(EINVAL));
3181 zct.zct_props = nvprops;
3184 return (SET_ERROR(EINVAL));
3186 if (type == DMU_OST_ZVOL) {
3187 uint64_t volsize, volblocksize;
3189 if (nvprops == NULL)
3190 return (SET_ERROR(EINVAL));
3191 if (nvlist_lookup_uint64(nvprops,
3192 zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0)
3193 return (SET_ERROR(EINVAL));
3195 if ((error = nvlist_lookup_uint64(nvprops,
3196 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
3197 &volblocksize)) != 0 && error != ENOENT)
3198 return (SET_ERROR(EINVAL));
3201 volblocksize = zfs_prop_default_numeric(
3202 ZFS_PROP_VOLBLOCKSIZE);
3204 if ((error = zvol_check_volblocksize(
3205 volblocksize)) != 0 ||
3206 (error = zvol_check_volsize(volsize,
3207 volblocksize)) != 0)
3209 } else if (type == DMU_OST_ZFS) {
3213 * We have to have normalization and
3214 * case-folding flags correct when we do the
3215 * file system creation, so go figure them out
3218 VERIFY(nvlist_alloc(&zct.zct_zplprops,
3219 NV_UNIQUE_NAME, KM_SLEEP) == 0);
3220 error = zfs_fill_zplprops(fsname, nvprops,
3221 zct.zct_zplprops, &is_insensitive);
3223 nvlist_free(zct.zct_zplprops);
3228 error = dmu_objset_create(fsname, type,
3229 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
3230 nvlist_free(zct.zct_zplprops);
3233 * It would be nice to do this atomically.
3236 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3239 (void) dsl_destroy_head(fsname);
3243 if (error == 0 && type == DMU_OST_ZVOL)
3244 zvol_create_minors(fsname);
3252 * "origin" -> name of origin snapshot
3253 * (optional) "props" -> { prop -> value }
3257 * outnvl: propname -> error code (int32)
3260 zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3263 nvlist_t *nvprops = NULL;
3266 if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0)
3267 return (SET_ERROR(EINVAL));
3268 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3270 if (strchr(fsname, '@') ||
3271 strchr(fsname, '%'))
3272 return (SET_ERROR(EINVAL));
3274 if (dataset_namecheck(origin_name, NULL, NULL) != 0)
3275 return (SET_ERROR(EINVAL));
3276 error = dmu_objset_clone(fsname, origin_name);
3281 * It would be nice to do this atomically.
3284 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3287 (void) dsl_destroy_head(fsname);
3292 zvol_create_minors(fsname);
3300 * "snaps" -> { snapshot1, snapshot2 }
3301 * (optional) "props" -> { prop -> value (string) }
3304 * outnvl: snapshot -> error code (int32)
3307 zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3310 nvlist_t *props = NULL;
3312 nvpair_t *pair, *pair2;
3314 (void) nvlist_lookup_nvlist(innvl, "props", &props);
3315 if ((error = zfs_check_userprops(poolname, props)) != 0)
3318 if (!nvlist_empty(props) &&
3319 zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
3320 return (SET_ERROR(ENOTSUP));
3322 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3323 return (SET_ERROR(EINVAL));
3324 poollen = strlen(poolname);
3325 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3326 pair = nvlist_next_nvpair(snaps, pair)) {
3327 const char *name = nvpair_name(pair);
3328 const char *cp = strchr(name, '@');
3331 * The snap name must contain an @, and the part after it must
3332 * contain only valid characters.
3335 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3336 return (SET_ERROR(EINVAL));
3339 * The snap must be in the specified pool.
3341 if (strncmp(name, poolname, poollen) != 0 ||
3342 (name[poollen] != '/' && name[poollen] != '@'))
3343 return (SET_ERROR(EXDEV));
3345 /* This must be the only snap of this fs. */
3346 for (pair2 = nvlist_next_nvpair(snaps, pair);
3347 pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) {
3348 if (strncmp(name, nvpair_name(pair2), cp - name + 1)
3350 return (SET_ERROR(EXDEV));
3355 error = dsl_dataset_snapshot(snaps, props, outnvl);
3359 zvol_create_minors(poolname);
3366 * innvl: "message" -> string
3370 zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
3378 * The poolname in the ioctl is not set, we get it from the TSD,
3379 * which was set at the end of the last successful ioctl that allows
3380 * logging. The secpolicy func already checked that it is set.
3381 * Only one log ioctl is allowed after each successful ioctl, so
3382 * we clear the TSD here.
3384 poolname = tsd_get(zfs_allow_log_key);
3385 (void) tsd_set(zfs_allow_log_key, NULL);
3386 error = spa_open(poolname, &spa, FTAG);
3391 if (nvlist_lookup_string(innvl, "message", &message) != 0) {
3392 spa_close(spa, FTAG);
3393 return (SET_ERROR(EINVAL));
3396 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
3397 spa_close(spa, FTAG);
3398 return (SET_ERROR(ENOTSUP));
3401 error = spa_history_log(spa, message);
3402 spa_close(spa, FTAG);
3407 * The dp_config_rwlock must not be held when calling this, because the
3408 * unmount may need to write out data.
3410 * This function is best-effort. Callers must deal gracefully if it
3411 * remains mounted (or is remounted after this call).
3413 * XXX: This function should detect a failure to unmount a snapdir of a dataset
3414 * and return the appropriate error code when it is mounted. Its Illumos and
3415 * FreeBSD counterparts do this. We do not do this on Linux because there is no
3416 * clear way to access the mount information that FreeBSD and Illumos use to
3417 * distinguish between things with mounted snapshot directories, and things
3418 * without mounted snapshot directories, which include zvols. Returning a
3419 * failure for the latter causes `zfs destroy` to fail on zvol snapshots.
3422 zfs_unmount_snap(const char *snapname)
3424 zfs_sb_t *zsb = NULL;
3429 if ((ptr = strchr(snapname, '@')) == NULL)
3432 dsname = kmem_alloc(ptr - snapname + 1, KM_SLEEP);
3433 strlcpy(dsname, snapname, ptr - snapname + 1);
3434 fullname = strdup(snapname);
3436 if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) {
3437 ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os)));
3438 (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE);
3439 zfs_sb_rele(zsb, FTAG);
3442 kmem_free(dsname, ptr - snapname + 1);
3450 zfs_unmount_snap_cb(const char *snapname, void *arg)
3452 return (zfs_unmount_snap(snapname));
3456 * When a clone is destroyed, its origin may also need to be destroyed,
3457 * in which case it must be unmounted. This routine will do that unmount
3461 zfs_destroy_unmount_origin(const char *fsname)
3467 error = dmu_objset_hold(fsname, FTAG, &os);
3470 ds = dmu_objset_ds(os);
3471 if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) {
3472 char originname[MAXNAMELEN];
3473 dsl_dataset_name(ds->ds_prev, originname);
3474 dmu_objset_rele(os, FTAG);
3475 (void) zfs_unmount_snap(originname);
3477 dmu_objset_rele(os, FTAG);
3483 * "snaps" -> { snapshot1, snapshot2 }
3484 * (optional boolean) "defer"
3487 * outnvl: snapshot -> error code (int32)
3491 zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3497 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3498 return (SET_ERROR(EINVAL));
3499 defer = nvlist_exists(innvl, "defer");
3501 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3502 pair = nvlist_next_nvpair(snaps, pair)) {
3503 (void) zfs_unmount_snap(nvpair_name(pair));
3504 (void) zvol_remove_minor(nvpair_name(pair));
3507 return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl));
3511 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3512 * All bookmarks must be in the same pool.
3515 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3518 * outnvl: bookmark -> error code (int32)
3523 zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3525 nvpair_t *pair, *pair2;
3527 for (pair = nvlist_next_nvpair(innvl, NULL);
3528 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
3532 * Verify the snapshot argument.
3534 if (nvpair_value_string(pair, &snap_name) != 0)
3535 return (SET_ERROR(EINVAL));
3538 /* Verify that the keys (bookmarks) are unique */
3539 for (pair2 = nvlist_next_nvpair(innvl, pair);
3540 pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) {
3541 if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0)
3542 return (SET_ERROR(EINVAL));
3546 return (dsl_bookmark_create(innvl, outnvl));
3551 * property 1, property 2, ...
3555 * bookmark name 1 -> { property 1, property 2, ... },
3556 * bookmark name 2 -> { property 1, property 2, ... }
3561 zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3563 return (dsl_get_bookmarks(fsname, innvl, outnvl));
3568 * bookmark name 1, bookmark name 2
3571 * outnvl: bookmark -> error code (int32)
3575 zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl,
3581 poollen = strlen(poolname);
3582 for (pair = nvlist_next_nvpair(innvl, NULL);
3583 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
3584 const char *name = nvpair_name(pair);
3585 const char *cp = strchr(name, '#');
3588 * The bookmark name must contain an #, and the part after it
3589 * must contain only valid characters.
3592 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3593 return (SET_ERROR(EINVAL));
3596 * The bookmark must be in the specified pool.
3598 if (strncmp(name, poolname, poollen) != 0 ||
3599 (name[poollen] != '/' && name[poollen] != '#'))
3600 return (SET_ERROR(EXDEV));
3603 error = dsl_bookmark_destroy(innvl, outnvl);
3609 * zc_name name of dataset to destroy
3610 * zc_objset_type type of objset
3611 * zc_defer_destroy mark for deferred destroy
3616 zfs_ioc_destroy(zfs_cmd_t *zc)
3620 if (zc->zc_objset_type == DMU_OST_ZFS) {
3621 err = zfs_unmount_snap(zc->zc_name);
3626 if (strchr(zc->zc_name, '@'))
3627 err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy);
3629 err = dsl_destroy_head(zc->zc_name);
3630 if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0)
3631 (void) zvol_remove_minor(zc->zc_name);
3636 * fsname is name of dataset to rollback (to most recent snapshot)
3638 * innvl is not used.
3640 * outnvl: "target" -> name of most recent snapshot
3645 zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl)
3650 if (get_zfs_sb(fsname, &zsb) == 0) {
3651 error = zfs_suspend_fs(zsb);
3655 error = dsl_dataset_rollback(fsname, zsb, outnvl);
3656 resume_err = zfs_resume_fs(zsb, fsname);
3657 error = error ? error : resume_err;
3659 deactivate_super(zsb->z_sb);
3661 error = dsl_dataset_rollback(fsname, NULL, outnvl);
3667 recursive_unmount(const char *fsname, void *arg)
3669 const char *snapname = arg;
3673 fullname = kmem_asprintf("%s@%s", fsname, snapname);
3674 error = zfs_unmount_snap(fullname);
3682 * zc_name old name of dataset
3683 * zc_value new name of dataset
3684 * zc_cookie recursive flag (only valid for snapshots)
3689 zfs_ioc_rename(zfs_cmd_t *zc)
3691 boolean_t recursive = zc->zc_cookie & 1;
3694 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
3695 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3696 strchr(zc->zc_value, '%'))
3697 return (SET_ERROR(EINVAL));
3699 at = strchr(zc->zc_name, '@');
3701 /* snaps must be in same fs */
3704 if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))
3705 return (SET_ERROR(EXDEV));
3707 if (zc->zc_objset_type == DMU_OST_ZFS) {
3708 error = dmu_objset_find(zc->zc_name,
3709 recursive_unmount, at + 1,
3710 recursive ? DS_FIND_CHILDREN : 0);
3716 error = dsl_dataset_rename_snapshot(zc->zc_name,
3717 at + 1, strchr(zc->zc_value, '@') + 1, recursive);
3722 return (dsl_dir_rename(zc->zc_name, zc->zc_value));
3727 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
3729 const char *propname = nvpair_name(pair);
3730 boolean_t issnap = (strchr(dsname, '@') != NULL);
3731 zfs_prop_t prop = zfs_name_to_prop(propname);
3735 if (prop == ZPROP_INVAL) {
3736 if (zfs_prop_user(propname)) {
3737 if ((err = zfs_secpolicy_write_perms(dsname,
3738 ZFS_DELEG_PERM_USERPROP, cr)))
3743 if (!issnap && zfs_prop_userquota(propname)) {
3744 const char *perm = NULL;
3745 const char *uq_prefix =
3746 zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
3747 const char *gq_prefix =
3748 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
3750 if (strncmp(propname, uq_prefix,
3751 strlen(uq_prefix)) == 0) {
3752 perm = ZFS_DELEG_PERM_USERQUOTA;
3753 } else if (strncmp(propname, gq_prefix,
3754 strlen(gq_prefix)) == 0) {
3755 perm = ZFS_DELEG_PERM_GROUPQUOTA;
3757 /* USERUSED and GROUPUSED are read-only */
3758 return (SET_ERROR(EINVAL));
3761 if ((err = zfs_secpolicy_write_perms(dsname, perm, cr)))
3766 return (SET_ERROR(EINVAL));
3770 return (SET_ERROR(EINVAL));
3772 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
3774 * dsl_prop_get_all_impl() returns properties in this
3778 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
3779 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3784 * Check that this value is valid for this pool version
3787 case ZFS_PROP_COMPRESSION:
3789 * If the user specified gzip compression, make sure
3790 * the SPA supports it. We ignore any errors here since
3791 * we'll catch them later.
3793 if (nvpair_value_uint64(pair, &intval) == 0) {
3794 if (intval >= ZIO_COMPRESS_GZIP_1 &&
3795 intval <= ZIO_COMPRESS_GZIP_9 &&
3796 zfs_earlier_version(dsname,
3797 SPA_VERSION_GZIP_COMPRESSION)) {
3798 return (SET_ERROR(ENOTSUP));
3801 if (intval == ZIO_COMPRESS_ZLE &&
3802 zfs_earlier_version(dsname,
3803 SPA_VERSION_ZLE_COMPRESSION))
3804 return (SET_ERROR(ENOTSUP));
3806 if (intval == ZIO_COMPRESS_LZ4) {
3809 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
3812 if (!spa_feature_is_enabled(spa,
3813 SPA_FEATURE_LZ4_COMPRESS)) {
3814 spa_close(spa, FTAG);
3815 return (SET_ERROR(ENOTSUP));
3817 spa_close(spa, FTAG);
3821 * If this is a bootable dataset then
3822 * verify that the compression algorithm
3823 * is supported for booting. We must return
3824 * something other than ENOTSUP since it
3825 * implies a downrev pool version.
3827 if (zfs_is_bootfs(dsname) &&
3828 !BOOTFS_COMPRESS_VALID(intval)) {
3829 return (SET_ERROR(ERANGE));
3834 case ZFS_PROP_COPIES:
3835 if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS))
3836 return (SET_ERROR(ENOTSUP));
3839 case ZFS_PROP_DEDUP:
3840 if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
3841 return (SET_ERROR(ENOTSUP));
3844 case ZFS_PROP_RECORDSIZE:
3845 /* Record sizes above 128k need the feature to be enabled */
3846 if (nvpair_value_uint64(pair, &intval) == 0 &&
3847 intval > SPA_OLD_MAXBLOCKSIZE) {
3851 * If this is a bootable dataset then
3852 * the we don't allow large (>128K) blocks,
3853 * because GRUB doesn't support them.
3855 if (zfs_is_bootfs(dsname) &&
3856 intval > SPA_OLD_MAXBLOCKSIZE) {
3857 return (SET_ERROR(EDOM));
3861 * We don't allow setting the property above 1MB,
3862 * unless the tunable has been changed.
3864 if (intval > zfs_max_recordsize ||
3865 intval > SPA_MAXBLOCKSIZE)
3866 return (SET_ERROR(EDOM));
3868 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
3871 if (!spa_feature_is_enabled(spa,
3872 SPA_FEATURE_LARGE_BLOCKS)) {
3873 spa_close(spa, FTAG);
3874 return (SET_ERROR(ENOTSUP));
3876 spa_close(spa, FTAG);
3880 case ZFS_PROP_SHARESMB:
3881 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
3882 return (SET_ERROR(ENOTSUP));
3885 case ZFS_PROP_ACLINHERIT:
3886 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3887 nvpair_value_uint64(pair, &intval) == 0) {
3888 if (intval == ZFS_ACL_PASSTHROUGH_X &&
3889 zfs_earlier_version(dsname,
3890 SPA_VERSION_PASSTHROUGH_X))
3891 return (SET_ERROR(ENOTSUP));
3898 return (zfs_secpolicy_setprop(dsname, prop, pair, CRED()));
3902 * Removes properties from the given props list that fail permission checks
3903 * needed to clear them and to restore them in case of a receive error. For each
3904 * property, make sure we have both set and inherit permissions.
3906 * Returns the first error encountered if any permission checks fail. If the
3907 * caller provides a non-NULL errlist, it also gives the complete list of names
3908 * of all the properties that failed a permission check along with the
3909 * corresponding error numbers. The caller is responsible for freeing the
3912 * If every property checks out successfully, zero is returned and the list
3913 * pointed at by errlist is NULL.
3916 zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
3919 nvpair_t *pair, *next_pair;
3926 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
3928 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
3929 (void) strcpy(zc->zc_name, dataset);
3930 pair = nvlist_next_nvpair(props, NULL);
3931 while (pair != NULL) {
3932 next_pair = nvlist_next_nvpair(props, pair);
3934 (void) strcpy(zc->zc_value, nvpair_name(pair));
3935 if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
3936 (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) {
3937 VERIFY(nvlist_remove_nvpair(props, pair) == 0);
3938 VERIFY(nvlist_add_int32(errors,
3939 zc->zc_value, err) == 0);
3943 kmem_free(zc, sizeof (zfs_cmd_t));
3945 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
3946 nvlist_free(errors);
3949 VERIFY(nvpair_value_int32(pair, &rv) == 0);
3952 if (errlist == NULL)
3953 nvlist_free(errors);
3961 propval_equals(nvpair_t *p1, nvpair_t *p2)
3963 if (nvpair_type(p1) == DATA_TYPE_NVLIST) {
3964 /* dsl_prop_get_all_impl() format */
3966 VERIFY(nvpair_value_nvlist(p1, &attrs) == 0);
3967 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3971 if (nvpair_type(p2) == DATA_TYPE_NVLIST) {
3973 VERIFY(nvpair_value_nvlist(p2, &attrs) == 0);
3974 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3978 if (nvpair_type(p1) != nvpair_type(p2))
3981 if (nvpair_type(p1) == DATA_TYPE_STRING) {
3982 char *valstr1, *valstr2;
3984 VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0);
3985 VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0);
3986 return (strcmp(valstr1, valstr2) == 0);
3988 uint64_t intval1, intval2;
3990 VERIFY(nvpair_value_uint64(p1, &intval1) == 0);
3991 VERIFY(nvpair_value_uint64(p2, &intval2) == 0);
3992 return (intval1 == intval2);
3997 * Remove properties from props if they are not going to change (as determined
3998 * by comparison with origprops). Remove them from origprops as well, since we
3999 * do not need to clear or restore properties that won't change.
4002 props_reduce(nvlist_t *props, nvlist_t *origprops)
4004 nvpair_t *pair, *next_pair;
4006 if (origprops == NULL)
4007 return; /* all props need to be received */
4009 pair = nvlist_next_nvpair(props, NULL);
4010 while (pair != NULL) {
4011 const char *propname = nvpair_name(pair);
4014 next_pair = nvlist_next_nvpair(props, pair);
4016 if ((nvlist_lookup_nvpair(origprops, propname,
4017 &match) != 0) || !propval_equals(pair, match))
4018 goto next; /* need to set received value */
4020 /* don't clear the existing received value */
4021 (void) nvlist_remove_nvpair(origprops, match);
4022 /* don't bother receiving the property */
4023 (void) nvlist_remove_nvpair(props, pair);
4030 static boolean_t zfs_ioc_recv_inject_err;
4035 * zc_name name of containing filesystem
4036 * zc_nvlist_src{_size} nvlist of properties to apply
4037 * zc_value name of snapshot to create
4038 * zc_string name of clone origin (if DRR_FLAG_CLONE)
4039 * zc_cookie file descriptor to recv from
4040 * zc_begin_record the BEGIN record of the stream (not byteswapped)
4041 * zc_guid force flag
4042 * zc_cleanup_fd cleanup-on-exit file descriptor
4043 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
4046 * zc_cookie number of bytes read
4047 * zc_nvlist_dst{_size} error for each unapplied received property
4048 * zc_obj zprop_errflags_t
4049 * zc_action_handle handle for this guid/ds mapping
4052 zfs_ioc_recv(zfs_cmd_t *zc)
4055 dmu_recv_cookie_t drc;
4056 boolean_t force = (boolean_t)zc->zc_guid;
4059 int props_error = 0;
4062 nvlist_t *props = NULL; /* sent properties */
4063 nvlist_t *origprops = NULL; /* existing properties */
4064 char *origin = NULL;
4066 char tofs[ZFS_MAXNAMELEN];
4067 boolean_t first_recvd_props = B_FALSE;
4069 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
4070 strchr(zc->zc_value, '@') == NULL ||
4071 strchr(zc->zc_value, '%'))
4072 return (SET_ERROR(EINVAL));
4074 (void) strcpy(tofs, zc->zc_value);
4075 tosnap = strchr(tofs, '@');
4078 if (zc->zc_nvlist_src != 0 &&
4079 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
4080 zc->zc_iflags, &props)) != 0)
4087 return (SET_ERROR(EBADF));
4090 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
4092 if (zc->zc_string[0])
4093 origin = zc->zc_string;
4095 error = dmu_recv_begin(tofs, tosnap,
4096 &zc->zc_begin_record, force, origin, &drc);
4101 * Set properties before we receive the stream so that they are applied
4102 * to the new data. Note that we must call dmu_recv_stream() if
4103 * dmu_recv_begin() succeeds.
4105 if (props != NULL && !drc.drc_newfs) {
4106 if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >=
4107 SPA_VERSION_RECVD_PROPS &&
4108 !dsl_prop_get_hasrecvd(tofs))
4109 first_recvd_props = B_TRUE;
4112 * If new received properties are supplied, they are to
4113 * completely replace the existing received properties, so stash
4114 * away the existing ones.
4116 if (dsl_prop_get_received(tofs, &origprops) == 0) {
4117 nvlist_t *errlist = NULL;
4119 * Don't bother writing a property if its value won't
4120 * change (and avoid the unnecessary security checks).
4122 * The first receive after SPA_VERSION_RECVD_PROPS is a
4123 * special case where we blow away all local properties
4126 if (!first_recvd_props)
4127 props_reduce(props, origprops);
4128 if (zfs_check_clearable(tofs, origprops, &errlist) != 0)
4129 (void) nvlist_merge(errors, errlist, 0);
4130 nvlist_free(errlist);
4132 if (clear_received_props(tofs, origprops,
4133 first_recvd_props ? NULL : props) != 0)
4134 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
4136 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
4140 if (props != NULL) {
4141 props_error = dsl_prop_set_hasrecvd(tofs);
4143 if (props_error == 0) {
4144 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4149 if (zc->zc_nvlist_dst_size != 0 &&
4150 (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 ||
4151 put_nvlist(zc, errors) != 0)) {
4153 * Caller made zc->zc_nvlist_dst less than the minimum expected
4154 * size or supplied an invalid address.
4156 props_error = SET_ERROR(EINVAL);
4160 error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd,
4161 &zc->zc_action_handle);
4164 zfs_sb_t *zsb = NULL;
4166 if (get_zfs_sb(tofs, &zsb) == 0) {
4170 error = zfs_suspend_fs(zsb);
4172 * If the suspend fails, then the recv_end will
4173 * likely also fail, and clean up after itself.
4175 end_err = dmu_recv_end(&drc, zsb);
4177 error = zfs_resume_fs(zsb, tofs);
4178 error = error ? error : end_err;
4179 deactivate_super(zsb->z_sb);
4181 error = dmu_recv_end(&drc, NULL);
4185 zc->zc_cookie = off - fp->f_offset;
4186 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4190 if (zfs_ioc_recv_inject_err) {
4191 zfs_ioc_recv_inject_err = B_FALSE;
4198 zvol_create_minors(tofs);
4202 * On error, restore the original props.
4204 if (error != 0 && props != NULL && !drc.drc_newfs) {
4205 if (clear_received_props(tofs, props, NULL) != 0) {
4207 * We failed to clear the received properties.
4208 * Since we may have left a $recvd value on the
4209 * system, we can't clear the $hasrecvd flag.
4211 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4212 } else if (first_recvd_props) {
4213 dsl_prop_unset_hasrecvd(tofs);
4216 if (origprops == NULL && !drc.drc_newfs) {
4217 /* We failed to stash the original properties. */
4218 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4222 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4223 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4224 * explictly if we're restoring local properties cleared in the
4225 * first new-style receive.
4227 if (origprops != NULL &&
4228 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
4229 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
4230 origprops, NULL) != 0) {
4232 * We stashed the original properties but failed to
4235 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4240 nvlist_free(origprops);
4241 nvlist_free(errors);
4245 error = props_error;
4252 * zc_name name of snapshot to send
4253 * zc_cookie file descriptor to send stream to
4254 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4255 * zc_sendobj objsetid of snapshot to send
4256 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4257 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4258 * output size in zc_objset_type.
4259 * zc_flags lzc_send_flags
4262 * zc_objset_type estimated size, if zc_guid is set
4265 zfs_ioc_send(zfs_cmd_t *zc)
4269 boolean_t estimate = (zc->zc_guid != 0);
4270 boolean_t embedok = (zc->zc_flags & 0x1);
4271 boolean_t large_block_ok = (zc->zc_flags & 0x2);
4273 if (zc->zc_obj != 0) {
4275 dsl_dataset_t *tosnap;
4277 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4281 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap);
4283 dsl_pool_rele(dp, FTAG);
4287 if (dsl_dir_is_clone(tosnap->ds_dir))
4289 dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj;
4290 dsl_dataset_rele(tosnap, FTAG);
4291 dsl_pool_rele(dp, FTAG);
4296 dsl_dataset_t *tosnap;
4297 dsl_dataset_t *fromsnap = NULL;
4299 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4303 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap);
4305 dsl_pool_rele(dp, FTAG);
4309 if (zc->zc_fromobj != 0) {
4310 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj,
4313 dsl_dataset_rele(tosnap, FTAG);
4314 dsl_pool_rele(dp, FTAG);
4319 error = dmu_send_estimate(tosnap, fromsnap,
4320 &zc->zc_objset_type);
4322 if (fromsnap != NULL)
4323 dsl_dataset_rele(fromsnap, FTAG);
4324 dsl_dataset_rele(tosnap, FTAG);
4325 dsl_pool_rele(dp, FTAG);
4327 file_t *fp = getf(zc->zc_cookie);
4329 return (SET_ERROR(EBADF));
4332 error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
4333 zc->zc_fromobj, embedok, large_block_ok,
4334 zc->zc_cookie, fp->f_vnode, &off);
4336 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4338 releasef(zc->zc_cookie);
4345 * zc_name name of snapshot on which to report progress
4346 * zc_cookie file descriptor of send stream
4349 * zc_cookie number of bytes written in send stream thus far
4352 zfs_ioc_send_progress(zfs_cmd_t *zc)
4356 dmu_sendarg_t *dsp = NULL;
4359 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4363 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
4365 dsl_pool_rele(dp, FTAG);
4369 mutex_enter(&ds->ds_sendstream_lock);
4372 * Iterate over all the send streams currently active on this dataset.
4373 * If there's one which matches the specified file descriptor _and_ the
4374 * stream was started by the current process, return the progress of
4378 for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL;
4379 dsp = list_next(&ds->ds_sendstreams, dsp)) {
4380 if (dsp->dsa_outfd == zc->zc_cookie &&
4381 dsp->dsa_proc->group_leader == curproc->group_leader)
4386 zc->zc_cookie = *(dsp->dsa_off);
4388 error = SET_ERROR(ENOENT);
4390 mutex_exit(&ds->ds_sendstream_lock);
4391 dsl_dataset_rele(ds, FTAG);
4392 dsl_pool_rele(dp, FTAG);
4397 zfs_ioc_inject_fault(zfs_cmd_t *zc)
4401 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
4402 &zc->zc_inject_record);
4405 zc->zc_guid = (uint64_t)id;
4411 zfs_ioc_clear_fault(zfs_cmd_t *zc)
4413 return (zio_clear_fault((int)zc->zc_guid));
4417 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
4419 int id = (int)zc->zc_guid;
4422 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
4423 &zc->zc_inject_record);
4431 zfs_ioc_error_log(zfs_cmd_t *zc)
4435 size_t count = (size_t)zc->zc_nvlist_dst_size;
4437 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
4440 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
4443 zc->zc_nvlist_dst_size = count;
4445 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
4447 spa_close(spa, FTAG);
4453 zfs_ioc_clear(zfs_cmd_t *zc)
4460 * On zpool clear we also fix up missing slogs
4462 mutex_enter(&spa_namespace_lock);
4463 spa = spa_lookup(zc->zc_name);
4465 mutex_exit(&spa_namespace_lock);
4466 return (SET_ERROR(EIO));
4468 if (spa_get_log_state(spa) == SPA_LOG_MISSING) {
4469 /* we need to let spa_open/spa_load clear the chains */
4470 spa_set_log_state(spa, SPA_LOG_CLEAR);
4472 spa->spa_last_open_failed = 0;
4473 mutex_exit(&spa_namespace_lock);
4475 if (zc->zc_cookie & ZPOOL_NO_REWIND) {
4476 error = spa_open(zc->zc_name, &spa, FTAG);
4479 nvlist_t *config = NULL;
4481 if (zc->zc_nvlist_src == 0)
4482 return (SET_ERROR(EINVAL));
4484 if ((error = get_nvlist(zc->zc_nvlist_src,
4485 zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) {
4486 error = spa_open_rewind(zc->zc_name, &spa, FTAG,
4488 if (config != NULL) {
4491 if ((err = put_nvlist(zc, config)) != 0)
4493 nvlist_free(config);
4495 nvlist_free(policy);
4502 spa_vdev_state_enter(spa, SCL_NONE);
4504 if (zc->zc_guid == 0) {
4507 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
4509 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
4510 spa_close(spa, FTAG);
4511 return (SET_ERROR(ENODEV));
4515 vdev_clear(spa, vd);
4517 (void) spa_vdev_state_exit(spa, NULL, 0);
4520 * Resume any suspended I/Os.
4522 if (zio_resume(spa) != 0)
4523 error = SET_ERROR(EIO);
4525 spa_close(spa, FTAG);
4531 zfs_ioc_pool_reopen(zfs_cmd_t *zc)
4536 error = spa_open(zc->zc_name, &spa, FTAG);
4540 spa_vdev_state_enter(spa, SCL_NONE);
4543 * If a resilver is already in progress then set the
4544 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4545 * the scan as a side effect of the reopen. Otherwise, let
4546 * vdev_open() decided if a resilver is required.
4548 spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool);
4549 vdev_reopen(spa->spa_root_vdev);
4550 spa->spa_scrub_reopen = B_FALSE;
4552 (void) spa_vdev_state_exit(spa, NULL, 0);
4553 spa_close(spa, FTAG);
4558 * zc_name name of filesystem
4559 * zc_value name of origin snapshot
4562 * zc_string name of conflicting snapshot, if there is one
4565 zfs_ioc_promote(zfs_cmd_t *zc)
4570 * We don't need to unmount *all* the origin fs's snapshots, but
4573 cp = strchr(zc->zc_value, '@');
4576 (void) dmu_objset_find(zc->zc_value,
4577 zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS);
4578 return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
4582 * Retrieve a single {user|group}{used|quota}@... property.
4585 * zc_name name of filesystem
4586 * zc_objset_type zfs_userquota_prop_t
4587 * zc_value domain name (eg. "S-1-234-567-89")
4588 * zc_guid RID/UID/GID
4591 * zc_cookie property value
4594 zfs_ioc_userspace_one(zfs_cmd_t *zc)
4599 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
4600 return (SET_ERROR(EINVAL));
4602 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4606 error = zfs_userspace_one(zsb,
4607 zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie);
4608 zfs_sb_rele(zsb, FTAG);
4615 * zc_name name of filesystem
4616 * zc_cookie zap cursor
4617 * zc_objset_type zfs_userquota_prop_t
4618 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4621 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4622 * zc_cookie zap cursor
4625 zfs_ioc_userspace_many(zfs_cmd_t *zc)
4628 int bufsize = zc->zc_nvlist_dst_size;
4633 return (SET_ERROR(ENOMEM));
4635 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4639 buf = vmem_alloc(bufsize, KM_SLEEP);
4641 error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie,
4642 buf, &zc->zc_nvlist_dst_size);
4645 error = xcopyout(buf,
4646 (void *)(uintptr_t)zc->zc_nvlist_dst,
4647 zc->zc_nvlist_dst_size);
4649 vmem_free(buf, bufsize);
4650 zfs_sb_rele(zsb, FTAG);
4657 * zc_name name of filesystem
4663 zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
4669 if (get_zfs_sb(zc->zc_name, &zsb) == 0) {
4670 if (!dmu_objset_userused_enabled(zsb->z_os)) {
4672 * If userused is not enabled, it may be because the
4673 * objset needs to be closed & reopened (to grow the
4674 * objset_phys_t). Suspend/resume the fs will do that.
4676 error = zfs_suspend_fs(zsb);
4678 dmu_objset_refresh_ownership(zsb->z_os,
4680 error = zfs_resume_fs(zsb, zc->zc_name);
4684 error = dmu_objset_userspace_upgrade(zsb->z_os);
4685 deactivate_super(zsb->z_sb);
4687 /* XXX kind of reading contents without owning */
4688 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4692 error = dmu_objset_userspace_upgrade(os);
4693 dmu_objset_rele(os, FTAG);
4700 zfs_ioc_share(zfs_cmd_t *zc)
4702 return (SET_ERROR(ENOSYS));
4705 ace_t full_access[] = {
4706 {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0}
4711 * zc_name name of containing filesystem
4712 * zc_obj object # beyond which we want next in-use object #
4715 * zc_obj next in-use object #
4718 zfs_ioc_next_obj(zfs_cmd_t *zc)
4720 objset_t *os = NULL;
4723 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4727 error = dmu_object_next(os, &zc->zc_obj, B_FALSE,
4728 dsl_dataset_phys(os->os_dsl_dataset)->ds_prev_snap_txg);
4730 dmu_objset_rele(os, FTAG);
4736 * zc_name name of filesystem
4737 * zc_value prefix name for snapshot
4738 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4741 * zc_value short name of new snapshot
4744 zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
4751 error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor);
4755 snap_name = kmem_asprintf("%s-%016llx", zc->zc_value,
4756 (u_longlong_t)ddi_get_lbolt64());
4757 hold_name = kmem_asprintf("%%%s", zc->zc_value);
4759 error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor,
4762 (void) strcpy(zc->zc_value, snap_name);
4765 zfs_onexit_fd_rele(zc->zc_cleanup_fd);
4771 * zc_name name of "to" snapshot
4772 * zc_value name of "from" snapshot
4773 * zc_cookie file descriptor to write diff data on
4776 * dmu_diff_record_t's to the file descriptor
4779 zfs_ioc_diff(zfs_cmd_t *zc)
4785 fp = getf(zc->zc_cookie);
4787 return (SET_ERROR(EBADF));
4791 error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off);
4793 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4795 releasef(zc->zc_cookie);
4801 * Remove all ACL files in shares dir
4803 #ifdef HAVE_SMB_SHARE
4805 zfs_smb_acl_purge(znode_t *dzp)
4808 zap_attribute_t zap;
4809 zfs_sb_t *zsb = ZTOZSB(dzp);
4812 for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id);
4813 (error = zap_cursor_retrieve(&zc, &zap)) == 0;
4814 zap_cursor_advance(&zc)) {
4815 if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred,
4819 zap_cursor_fini(&zc);
4822 #endif /* HAVE_SMB_SHARE */
4825 zfs_ioc_smb_acl(zfs_cmd_t *zc)
4827 #ifdef HAVE_SMB_SHARE
4830 vnode_t *resourcevp = NULL;
4839 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
4840 NO_FOLLOW, NULL, &vp)) != 0)
4843 /* Now make sure mntpnt and dataset are ZFS */
4845 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
4846 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
4847 zc->zc_name) != 0)) {
4849 return (SET_ERROR(EINVAL));
4857 * Create share dir if its missing.
4859 mutex_enter(&zsb->z_lock);
4860 if (zsb->z_shares_dir == 0) {
4863 tx = dmu_tx_create(zsb->z_os);
4864 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE,
4866 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL);
4867 error = dmu_tx_assign(tx, TXG_WAIT);
4871 error = zfs_create_share_dir(zsb, tx);
4875 mutex_exit(&zsb->z_lock);
4881 mutex_exit(&zsb->z_lock);
4883 ASSERT(zsb->z_shares_dir);
4884 if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) {
4890 switch (zc->zc_cookie) {
4891 case ZFS_SMB_ACL_ADD:
4892 vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE;
4893 vattr.va_mode = S_IFREG|0777;
4897 vsec.vsa_mask = VSA_ACE;
4898 vsec.vsa_aclentp = &full_access;
4899 vsec.vsa_aclentsz = sizeof (full_access);
4900 vsec.vsa_aclcnt = 1;
4902 error = VOP_CREATE(ZTOV(sharedir), zc->zc_string,
4903 &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec);
4905 VN_RELE(resourcevp);
4908 case ZFS_SMB_ACL_REMOVE:
4909 error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred,
4913 case ZFS_SMB_ACL_RENAME:
4914 if ((error = get_nvlist(zc->zc_nvlist_src,
4915 zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) {
4920 if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) ||
4921 nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET,
4924 VN_RELE(ZTOV(sharedir));
4926 nvlist_free(nvlist);
4929 error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target,
4931 nvlist_free(nvlist);
4934 case ZFS_SMB_ACL_PURGE:
4935 error = zfs_smb_acl_purge(sharedir);
4939 error = SET_ERROR(EINVAL);
4944 VN_RELE(ZTOV(sharedir));
4950 return (SET_ERROR(ENOTSUP));
4951 #endif /* HAVE_SMB_SHARE */
4956 * "holds" -> { snapname -> holdname (string), ... }
4957 * (optional) "cleanup_fd" -> fd (int32)
4961 * snapname -> error value (int32)
4967 zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
4970 int cleanup_fd = -1;
4974 error = nvlist_lookup_nvlist(args, "holds", &holds);
4976 return (SET_ERROR(EINVAL));
4978 if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) {
4979 error = zfs_onexit_fd_hold(cleanup_fd, &minor);
4984 error = dsl_dataset_user_hold(holds, minor, errlist);
4986 zfs_onexit_fd_rele(cleanup_fd);
4991 * innvl is not used.
4994 * holdname -> time added (uint64 seconds since epoch)
5000 zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
5002 return (dsl_dataset_get_holds(snapname, outnvl));
5007 * snapname -> { holdname, ... }
5012 * snapname -> error value (int32)
5018 zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist)
5020 return (dsl_dataset_user_release(holds, errlist));
5025 * zc_guid flags (ZEVENT_NONBLOCK)
5026 * zc_cleanup_fd zevent file descriptor
5029 * zc_nvlist_dst next nvlist event
5030 * zc_cookie dropped events since last get
5033 zfs_ioc_events_next(zfs_cmd_t *zc)
5036 nvlist_t *event = NULL;
5038 uint64_t dropped = 0;
5041 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
5046 error = zfs_zevent_next(ze, &event,
5047 &zc->zc_nvlist_dst_size, &dropped);
5048 if (event != NULL) {
5049 zc->zc_cookie = dropped;
5050 error = put_nvlist(zc, event);
5054 if (zc->zc_guid & ZEVENT_NONBLOCK)
5057 if ((error == 0) || (error != ENOENT))
5060 error = zfs_zevent_wait(ze);
5065 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
5072 * zc_cookie cleared events count
5075 zfs_ioc_events_clear(zfs_cmd_t *zc)
5079 zfs_zevent_drain_all(&count);
5080 zc->zc_cookie = count;
5087 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5088 * zc_cleanup zevent file descriptor
5091 zfs_ioc_events_seek(zfs_cmd_t *zc)
5097 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
5101 error = zfs_zevent_seek(ze, zc->zc_guid);
5102 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
5109 * zc_name name of new filesystem or snapshot
5110 * zc_value full name of old snapshot
5113 * zc_cookie space in bytes
5114 * zc_objset_type compressed space in bytes
5115 * zc_perm_action uncompressed space in bytes
5118 zfs_ioc_space_written(zfs_cmd_t *zc)
5122 dsl_dataset_t *new, *old;
5124 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
5127 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new);
5129 dsl_pool_rele(dp, FTAG);
5132 error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old);
5134 dsl_dataset_rele(new, FTAG);
5135 dsl_pool_rele(dp, FTAG);
5139 error = dsl_dataset_space_written(old, new, &zc->zc_cookie,
5140 &zc->zc_objset_type, &zc->zc_perm_action);
5141 dsl_dataset_rele(old, FTAG);
5142 dsl_dataset_rele(new, FTAG);
5143 dsl_pool_rele(dp, FTAG);
5149 * "firstsnap" -> snapshot name
5153 * "used" -> space in bytes
5154 * "compressed" -> compressed space in bytes
5155 * "uncompressed" -> uncompressed space in bytes
5159 zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
5163 dsl_dataset_t *new, *old;
5165 uint64_t used, comp, uncomp;
5167 if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0)
5168 return (SET_ERROR(EINVAL));
5170 error = dsl_pool_hold(lastsnap, FTAG, &dp);
5174 error = dsl_dataset_hold(dp, lastsnap, FTAG, &new);
5176 dsl_pool_rele(dp, FTAG);
5179 error = dsl_dataset_hold(dp, firstsnap, FTAG, &old);
5181 dsl_dataset_rele(new, FTAG);
5182 dsl_pool_rele(dp, FTAG);
5186 error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp);
5187 dsl_dataset_rele(old, FTAG);
5188 dsl_dataset_rele(new, FTAG);
5189 dsl_pool_rele(dp, FTAG);
5190 fnvlist_add_uint64(outnvl, "used", used);
5191 fnvlist_add_uint64(outnvl, "compressed", comp);
5192 fnvlist_add_uint64(outnvl, "uncompressed", uncomp);
5198 * "fd" -> file descriptor to write stream to (int32)
5199 * (optional) "fromsnap" -> full snap name to send an incremental from
5200 * (optional) "largeblockok" -> (value ignored)
5201 * indicates that blocks > 128KB are permitted
5202 * (optional) "embedok" -> (value ignored)
5203 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5210 zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
5214 char *fromname = NULL;
5217 boolean_t largeblockok;
5220 error = nvlist_lookup_int32(innvl, "fd", &fd);
5222 return (SET_ERROR(EINVAL));
5224 (void) nvlist_lookup_string(innvl, "fromsnap", &fromname);
5226 largeblockok = nvlist_exists(innvl, "largeblockok");
5227 embedok = nvlist_exists(innvl, "embedok");
5229 if ((fp = getf(fd)) == NULL)
5230 return (SET_ERROR(EBADF));
5233 error = dmu_send(snapname, fromname, embedok, largeblockok,
5234 fd, fp->f_vnode, &off);
5236 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
5244 * Determine approximately how large a zfs send stream will be -- the number
5245 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5248 * (optional) "fromsnap" -> full snap name to send an incremental from
5252 * "space" -> bytes of space (uint64)
5256 zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
5259 dsl_dataset_t *fromsnap = NULL;
5260 dsl_dataset_t *tosnap;
5265 error = dsl_pool_hold(snapname, FTAG, &dp);
5269 error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap);
5271 dsl_pool_rele(dp, FTAG);
5275 error = nvlist_lookup_string(innvl, "fromsnap", &fromname);
5277 error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap);
5279 dsl_dataset_rele(tosnap, FTAG);
5280 dsl_pool_rele(dp, FTAG);
5285 error = dmu_send_estimate(tosnap, fromsnap, &space);
5286 fnvlist_add_uint64(outnvl, "space", space);
5288 if (fromsnap != NULL)
5289 dsl_dataset_rele(fromsnap, FTAG);
5290 dsl_dataset_rele(tosnap, FTAG);
5291 dsl_pool_rele(dp, FTAG);
5296 static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
5299 zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5300 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
5301 boolean_t log_history, zfs_ioc_poolcheck_t pool_check)
5303 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
5305 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
5306 ASSERT3U(ioc, <, ZFS_IOC_LAST);
5307 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
5308 ASSERT3P(vec->zvec_func, ==, NULL);
5310 vec->zvec_legacy_func = func;
5311 vec->zvec_secpolicy = secpolicy;
5312 vec->zvec_namecheck = namecheck;
5313 vec->zvec_allow_log = log_history;
5314 vec->zvec_pool_check = pool_check;
5318 * See the block comment at the beginning of this file for details on
5319 * each argument to this function.
5322 zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func,
5323 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
5324 zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist,
5325 boolean_t allow_log)
5327 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
5329 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
5330 ASSERT3U(ioc, <, ZFS_IOC_LAST);
5331 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
5332 ASSERT3P(vec->zvec_func, ==, NULL);
5334 /* if we are logging, the name must be valid */
5335 ASSERT(!allow_log || namecheck != NO_NAME);
5337 vec->zvec_name = name;
5338 vec->zvec_func = func;
5339 vec->zvec_secpolicy = secpolicy;
5340 vec->zvec_namecheck = namecheck;
5341 vec->zvec_pool_check = pool_check;
5342 vec->zvec_smush_outnvlist = smush_outnvlist;
5343 vec->zvec_allow_log = allow_log;
5347 zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5348 zfs_secpolicy_func_t *secpolicy, boolean_t log_history,
5349 zfs_ioc_poolcheck_t pool_check)
5351 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5352 POOL_NAME, log_history, pool_check);
5356 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5357 zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check)
5359 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5360 DATASET_NAME, B_FALSE, pool_check);
5364 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
5366 zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config,
5367 POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
5371 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5372 zfs_secpolicy_func_t *secpolicy)
5374 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5375 NO_NAME, B_FALSE, POOL_CHECK_NONE);
5379 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc,
5380 zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy)
5382 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5383 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED);
5387 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
5389 zfs_ioctl_register_dataset_read_secpolicy(ioc, func,
5390 zfs_secpolicy_read);
5394 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5395 zfs_secpolicy_func_t *secpolicy)
5397 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5398 DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
5402 zfs_ioctl_init(void)
5404 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
5405 zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
5406 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5408 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
5409 zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
5410 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
5412 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
5413 zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
5414 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5416 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
5417 zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
5418 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5420 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
5421 zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
5422 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5424 zfs_ioctl_register("create", ZFS_IOC_CREATE,
5425 zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
5426 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5428 zfs_ioctl_register("clone", ZFS_IOC_CLONE,
5429 zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
5430 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5432 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
5433 zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
5434 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5436 zfs_ioctl_register("hold", ZFS_IOC_HOLD,
5437 zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
5438 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5439 zfs_ioctl_register("release", ZFS_IOC_RELEASE,
5440 zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
5441 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5443 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
5444 zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
5445 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5447 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
5448 zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
5449 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
5451 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
5452 zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
5453 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5455 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
5456 zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
5457 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5459 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
5460 zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
5462 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5464 /* IOCTLS that use the legacy function signature */
5466 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
5467 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY);
5469 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create,
5470 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
5471 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN,
5473 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE,
5474 zfs_ioc_pool_upgrade);
5475 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD,
5477 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE,
5478 zfs_ioc_vdev_remove);
5479 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE,
5480 zfs_ioc_vdev_set_state);
5481 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH,
5482 zfs_ioc_vdev_attach);
5483 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH,
5484 zfs_ioc_vdev_detach);
5485 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH,
5486 zfs_ioc_vdev_setpath);
5487 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU,
5488 zfs_ioc_vdev_setfru);
5489 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS,
5490 zfs_ioc_pool_set_props);
5491 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT,
5492 zfs_ioc_vdev_split);
5493 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID,
5494 zfs_ioc_pool_reguid);
5496 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS,
5497 zfs_ioc_pool_configs, zfs_secpolicy_none);
5498 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT,
5499 zfs_ioc_pool_tryimport, zfs_secpolicy_config);
5500 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT,
5501 zfs_ioc_inject_fault, zfs_secpolicy_inject);
5502 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT,
5503 zfs_ioc_clear_fault, zfs_secpolicy_inject);
5504 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT,
5505 zfs_ioc_inject_list_next, zfs_secpolicy_inject);
5508 * pool destroy, and export don't log the history as part of
5509 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5510 * does the logging of those commands.
5512 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy,
5513 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
5514 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export,
5515 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
5517 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
5518 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
5519 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
5520 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
5522 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
5523 zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
5524 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME,
5525 zfs_ioc_dsobj_to_dsname,
5526 zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED);
5527 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY,
5528 zfs_ioc_pool_get_history,
5529 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
5531 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import,
5532 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
5534 zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
5535 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
5536 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
5537 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
5539 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN,
5540 zfs_ioc_space_written);
5541 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS,
5542 zfs_ioc_objset_recvd_props);
5543 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ,
5545 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL,
5547 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS,
5548 zfs_ioc_objset_stats);
5549 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS,
5550 zfs_ioc_objset_zplprops);
5551 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT,
5552 zfs_ioc_dataset_list_next);
5553 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT,
5554 zfs_ioc_snapshot_list_next);
5555 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS,
5556 zfs_ioc_send_progress);
5558 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF,
5559 zfs_ioc_diff, zfs_secpolicy_diff);
5560 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS,
5561 zfs_ioc_obj_to_stats, zfs_secpolicy_diff);
5562 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH,
5563 zfs_ioc_obj_to_path, zfs_secpolicy_diff);
5564 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE,
5565 zfs_ioc_userspace_one, zfs_secpolicy_userspace_one);
5566 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY,
5567 zfs_ioc_userspace_many, zfs_secpolicy_userspace_many);
5568 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND,
5569 zfs_ioc_send, zfs_secpolicy_send);
5571 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop,
5572 zfs_secpolicy_none);
5573 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy,
5574 zfs_secpolicy_destroy);
5575 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename,
5576 zfs_secpolicy_rename);
5577 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv,
5578 zfs_secpolicy_recv);
5579 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote,
5580 zfs_secpolicy_promote);
5581 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP,
5582 zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop);
5583 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl,
5584 zfs_secpolicy_set_fsacl);
5586 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share,
5587 zfs_secpolicy_share, POOL_CHECK_NONE);
5588 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl,
5589 zfs_secpolicy_smb_acl, POOL_CHECK_NONE);
5590 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE,
5591 zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
5592 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
5593 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT,
5594 zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot,
5595 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
5600 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next,
5601 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
5602 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear,
5603 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
5604 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek,
5605 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
5609 pool_status_check(const char *name, zfs_ioc_namecheck_t type,
5610 zfs_ioc_poolcheck_t check)
5615 ASSERT(type == POOL_NAME || type == DATASET_NAME);
5617 if (check & POOL_CHECK_NONE)
5620 error = spa_open(name, &spa, FTAG);
5622 if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
5623 error = SET_ERROR(EAGAIN);
5624 else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa))
5625 error = SET_ERROR(EROFS);
5626 spa_close(spa, FTAG);
5632 zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which)
5636 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
5637 if (zs->zs_minor == minor) {
5641 return (zs->zs_onexit);
5643 return (zs->zs_zevent);
5654 zfsdev_get_state(minor_t minor, enum zfsdev_state_type which)
5658 ptr = zfsdev_get_state_impl(minor, which);
5664 zfsdev_getminor(struct file *filp)
5666 ASSERT(filp != NULL);
5667 ASSERT(filp->private_data != NULL);
5669 return (((zfsdev_state_t *)filp->private_data)->zs_minor);
5673 * Find a free minor number. The zfsdev_state_list is expected to
5674 * be short since it is only a list of currently open file handles.
5677 zfsdev_minor_alloc(void)
5679 static minor_t last_minor = 0;
5682 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
5684 for (m = last_minor + 1; m != last_minor; m++) {
5685 if (m > ZFSDEV_MAX_MINOR)
5687 if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) {
5697 zfsdev_state_init(struct file *filp)
5699 zfsdev_state_t *zs, *zsprev = NULL;
5701 boolean_t newzs = B_FALSE;
5703 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
5705 minor = zfsdev_minor_alloc();
5707 return (SET_ERROR(ENXIO));
5709 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
5710 if (zs->zs_minor == -1)
5716 zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
5721 filp->private_data = zs;
5723 zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit);
5724 zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent);
5728 * In order to provide for lock-free concurrent read access
5729 * to the minor list in zfsdev_get_state_impl(), new entries
5730 * must be completely written before linking them into the
5731 * list whereas existing entries are already linked; the last
5732 * operation must be updating zs_minor (from -1 to the new
5736 zs->zs_minor = minor;
5738 zsprev->zs_next = zs;
5741 zs->zs_minor = minor;
5748 zfsdev_state_destroy(struct file *filp)
5752 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
5753 ASSERT(filp->private_data != NULL);
5755 zs = filp->private_data;
5757 zfs_onexit_destroy(zs->zs_onexit);
5758 zfs_zevent_destroy(zs->zs_zevent);
5764 zfsdev_open(struct inode *ino, struct file *filp)
5768 mutex_enter(&zfsdev_state_lock);
5769 error = zfsdev_state_init(filp);
5770 mutex_exit(&zfsdev_state_lock);
5776 zfsdev_release(struct inode *ino, struct file *filp)
5780 mutex_enter(&zfsdev_state_lock);
5781 error = zfsdev_state_destroy(filp);
5782 mutex_exit(&zfsdev_state_lock);
5788 zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
5792 int error, rc, flag = 0;
5793 const zfs_ioc_vec_t *vec;
5794 char *saved_poolname = NULL;
5795 nvlist_t *innvl = NULL;
5796 fstrans_cookie_t cookie;
5798 vecnum = cmd - ZFS_IOC_FIRST;
5799 if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
5800 return (-SET_ERROR(EINVAL));
5801 vec = &zfs_ioc_vec[vecnum];
5804 * The registered ioctl list may be sparse, verify that either
5805 * a normal or legacy handler are registered.
5807 if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL)
5808 return (-SET_ERROR(EINVAL));
5810 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
5812 error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
5814 error = SET_ERROR(EFAULT);
5818 zc->zc_iflags = flag & FKIOCTL;
5819 if (zc->zc_nvlist_src_size != 0) {
5820 error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
5821 zc->zc_iflags, &innvl);
5827 * Ensure that all pool/dataset names are valid before we pass down to
5830 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
5831 switch (vec->zvec_namecheck) {
5833 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
5834 error = SET_ERROR(EINVAL);
5836 error = pool_status_check(zc->zc_name,
5837 vec->zvec_namecheck, vec->zvec_pool_check);
5841 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
5842 error = SET_ERROR(EINVAL);
5844 error = pool_status_check(zc->zc_name,
5845 vec->zvec_namecheck, vec->zvec_pool_check);
5853 if (error == 0 && !(flag & FKIOCTL))
5854 error = vec->zvec_secpolicy(zc, innvl, CRED());
5859 /* legacy ioctls can modify zc_name */
5860 saved_poolname = strdup(zc->zc_name);
5861 if (saved_poolname == NULL) {
5862 error = SET_ERROR(ENOMEM);
5865 saved_poolname[strcspn(saved_poolname, "/@#")] = '\0';
5868 if (vec->zvec_func != NULL) {
5872 nvlist_t *lognv = NULL;
5874 ASSERT(vec->zvec_legacy_func == NULL);
5877 * Add the innvl to the lognv before calling the func,
5878 * in case the func changes the innvl.
5880 if (vec->zvec_allow_log) {
5881 lognv = fnvlist_alloc();
5882 fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL,
5884 if (!nvlist_empty(innvl)) {
5885 fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL,
5890 outnvl = fnvlist_alloc();
5891 cookie = spl_fstrans_mark();
5892 error = vec->zvec_func(zc->zc_name, innvl, outnvl);
5893 spl_fstrans_unmark(cookie);
5895 if (error == 0 && vec->zvec_allow_log &&
5896 spa_open(zc->zc_name, &spa, FTAG) == 0) {
5897 if (!nvlist_empty(outnvl)) {
5898 fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL,
5901 (void) spa_history_log_nvl(spa, lognv);
5902 spa_close(spa, FTAG);
5904 fnvlist_free(lognv);
5906 if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) {
5908 if (vec->zvec_smush_outnvlist) {
5909 smusherror = nvlist_smush(outnvl,
5910 zc->zc_nvlist_dst_size);
5912 if (smusherror == 0)
5913 puterror = put_nvlist(zc, outnvl);
5919 nvlist_free(outnvl);
5921 cookie = spl_fstrans_mark();
5922 error = vec->zvec_legacy_func(zc);
5923 spl_fstrans_unmark(cookie);
5928 rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag);
5929 if (error == 0 && rc != 0)
5930 error = SET_ERROR(EFAULT);
5931 if (error == 0 && vec->zvec_allow_log) {
5932 char *s = tsd_get(zfs_allow_log_key);
5935 (void) tsd_set(zfs_allow_log_key, saved_poolname);
5937 if (saved_poolname != NULL)
5938 strfree(saved_poolname);
5941 kmem_free(zc, sizeof (zfs_cmd_t));
5945 #ifdef CONFIG_COMPAT
5947 zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
5949 return (zfsdev_ioctl(filp, cmd, arg));
5952 #define zfsdev_compat_ioctl NULL
5955 static const struct file_operations zfsdev_fops = {
5956 .open = zfsdev_open,
5957 .release = zfsdev_release,
5958 .unlocked_ioctl = zfsdev_ioctl,
5959 .compat_ioctl = zfsdev_compat_ioctl,
5960 .owner = THIS_MODULE,
5963 static struct miscdevice zfs_misc = {
5964 .minor = MISC_DYNAMIC_MINOR,
5966 .fops = &zfsdev_fops,
5974 mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL);
5975 zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
5976 zfsdev_state_list->zs_minor = -1;
5978 error = misc_register(&zfs_misc);
5980 printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
5991 zfsdev_state_t *zs, *zsprev = NULL;
5993 error = misc_deregister(&zfs_misc);
5995 printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error);
5997 mutex_destroy(&zfsdev_state_lock);
5999 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
6001 kmem_free(zsprev, sizeof (zfsdev_state_t));
6005 kmem_free(zsprev, sizeof (zfsdev_state_t));
6009 zfs_allow_log_destroy(void *arg)
6011 char *poolname = arg;
6016 #define ZFS_DEBUG_STR " (DEBUG mode)"
6018 #define ZFS_DEBUG_STR ""
6026 error = vn_set_pwd("/");
6029 "ZFS: Warning unable to set pwd to '/': %d\n", error);
6033 spa_init(FREAD | FWRITE);
6036 if ((error = zvol_init()) != 0)
6041 if ((error = zfs_attach()) != 0)
6044 tsd_create(&zfs_fsyncer_key, NULL);
6045 tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
6046 tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy);
6048 printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, "
6049 "ZFS pool version %s, ZFS filesystem version %s\n",
6050 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR,
6051 SPA_VERSION_STRING, ZPL_VERSION_STRING);
6052 #ifndef CONFIG_FS_POSIX_ACL
6053 printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n");
6054 #endif /* CONFIG_FS_POSIX_ACL */
6063 printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
6064 ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE,
6065 ZFS_DEBUG_STR, error);
6078 tsd_destroy(&zfs_fsyncer_key);
6079 tsd_destroy(&rrw_tsd_key);
6080 tsd_destroy(&zfs_allow_log_key);
6082 printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n",
6083 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
6090 MODULE_DESCRIPTION("ZFS");
6091 MODULE_AUTHOR(ZFS_META_AUTHOR);
6092 MODULE_LICENSE(ZFS_META_LICENSE);
6093 MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
6094 #endif /* HAVE_SPL */