diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c | 760 |
1 files changed, 0 insertions, 760 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c deleted file mode 100644 index 0ad658f910ec..000000000000 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c +++ /dev/null @@ -1,760 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2011, 2015 by Delphix. All rights reserved. - */ - -/* - * DSL permissions are stored in a two level zap attribute - * mechanism. The first level identifies the "class" of - * entry. The class is identified by the first 2 letters of - * the attribute. The second letter "l" or "d" identifies whether - * it is a local or descendent permission. The first letter - * identifies the type of entry. - * - * ul$<id> identifies permissions granted locally for this userid. - * ud$<id> identifies permissions granted on descendent datasets for - * this userid. - * Ul$<id> identifies permission sets granted locally for this userid. - * Ud$<id> identifies permission sets granted on descendent datasets for - * this userid. - * gl$<id> identifies permissions granted locally for this groupid. - * gd$<id> identifies permissions granted on descendent datasets for - * this groupid. - * Gl$<id> identifies permission sets granted locally for this groupid. - * Gd$<id> identifies permission sets granted on descendent datasets for - * this groupid. - * el$ identifies permissions granted locally for everyone. - * ed$ identifies permissions granted on descendent datasets - * for everyone. - * El$ identifies permission sets granted locally for everyone. - * Ed$ identifies permission sets granted to descendent datasets for - * everyone. - * c-$ identifies permission to create at dataset creation time. - * C-$ identifies permission sets to grant locally at dataset creation - * time. - * s-$@<name> permissions defined in specified set @<name> - * S-$@<name> Sets defined in named set @<name> - * - * Each of the above entities points to another zap attribute that contains one - * attribute for each allowed permission, such as create, destroy,... - * All of the "upper" case class types will specify permission set names - * rather than permissions. - * - * Basically it looks something like this: - * ul$12 -> ZAP OBJ -> permissions... - * - * The ZAP OBJ is referred to as the jump object. - */ - -#include <sys/dmu.h> -#include <sys/dmu_objset.h> -#include <sys/dmu_tx.h> -#include <sys/dsl_dataset.h> -#include <sys/dsl_dir.h> -#include <sys/dsl_prop.h> -#include <sys/dsl_synctask.h> -#include <sys/dsl_deleg.h> -#include <sys/spa.h> -#include <sys/zap.h> -#include <sys/fs/zfs.h> -#include <sys/cred.h> -#include <sys/sunddi.h> - -#include "zfs_deleg.h" - -/* - * Validate that user is allowed to delegate specified permissions. - * - * In order to delegate "create" you must have "create" - * and "allow". - */ -int -dsl_deleg_can_allow(char *ddname, nvlist_t *nvp, cred_t *cr) -{ - nvpair_t *whopair = NULL; - int error; - - if ((error = dsl_deleg_access(ddname, ZFS_DELEG_PERM_ALLOW, cr)) != 0) - return (error); - - while (whopair = nvlist_next_nvpair(nvp, whopair)) { - nvlist_t *perms; - nvpair_t *permpair = NULL; - - VERIFY(nvpair_value_nvlist(whopair, &perms) == 0); - - while (permpair = nvlist_next_nvpair(perms, permpair)) { - const char *perm = nvpair_name(permpair); - - if (strcmp(perm, ZFS_DELEG_PERM_ALLOW) == 0) - return (SET_ERROR(EPERM)); - - if ((error = dsl_deleg_access(ddname, perm, cr)) != 0) - return (error); - } - } - return (0); -} - -/* - * Validate that user is allowed to unallow specified permissions. They - * must have the 'allow' permission, and even then can only unallow - * perms for their uid. - */ -int -dsl_deleg_can_unallow(char *ddname, nvlist_t *nvp, cred_t *cr) -{ - nvpair_t *whopair = NULL; - int error; - char idstr[32]; - - if ((error = dsl_deleg_access(ddname, ZFS_DELEG_PERM_ALLOW, cr)) != 0) - return (error); - - (void) snprintf(idstr, sizeof (idstr), "%lld", - (longlong_t)crgetuid(cr)); - - while (whopair = nvlist_next_nvpair(nvp, whopair)) { - zfs_deleg_who_type_t type = nvpair_name(whopair)[0]; - - if (type != ZFS_DELEG_USER && - type != ZFS_DELEG_USER_SETS) - return (SET_ERROR(EPERM)); - - if (strcmp(idstr, &nvpair_name(whopair)[3]) != 0) - return (SET_ERROR(EPERM)); - } - return (0); -} - -typedef struct dsl_deleg_arg { - const char *dda_name; - nvlist_t *dda_nvlist; -} dsl_deleg_arg_t; - -static void -dsl_deleg_set_sync(void *arg, dmu_tx_t *tx) -{ - dsl_deleg_arg_t *dda = arg; - dsl_dir_t *dd; - dsl_pool_t *dp = dmu_tx_pool(tx); - objset_t *mos = dp->dp_meta_objset; - nvpair_t *whopair = NULL; - uint64_t zapobj; - - VERIFY0(dsl_dir_hold(dp, dda->dda_name, FTAG, &dd, NULL)); - - zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj; - if (zapobj == 0) { - dmu_buf_will_dirty(dd->dd_dbuf, tx); - zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj = zap_create(mos, - DMU_OT_DSL_PERMS, DMU_OT_NONE, 0, tx); - } - - while (whopair = nvlist_next_nvpair(dda->dda_nvlist, whopair)) { - const char *whokey = nvpair_name(whopair); - nvlist_t *perms; - nvpair_t *permpair = NULL; - uint64_t jumpobj; - - perms = fnvpair_value_nvlist(whopair); - - if (zap_lookup(mos, zapobj, whokey, 8, 1, &jumpobj) != 0) { - jumpobj = zap_create_link(mos, DMU_OT_DSL_PERMS, - zapobj, whokey, tx); - } - - while (permpair = nvlist_next_nvpair(perms, permpair)) { - const char *perm = nvpair_name(permpair); - uint64_t n = 0; - - VERIFY(zap_update(mos, jumpobj, - perm, 8, 1, &n, tx) == 0); - spa_history_log_internal_dd(dd, "permission update", tx, - "%s %s", whokey, perm); - } - } - dsl_dir_rele(dd, FTAG); -} - -static void -dsl_deleg_unset_sync(void *arg, dmu_tx_t *tx) -{ - dsl_deleg_arg_t *dda = arg; - dsl_dir_t *dd; - dsl_pool_t *dp = dmu_tx_pool(tx); - objset_t *mos = dp->dp_meta_objset; - nvpair_t *whopair = NULL; - uint64_t zapobj; - - VERIFY0(dsl_dir_hold(dp, dda->dda_name, FTAG, &dd, NULL)); - zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj; - if (zapobj == 0) { - dsl_dir_rele(dd, FTAG); - return; - } - - while (whopair = nvlist_next_nvpair(dda->dda_nvlist, whopair)) { - const char *whokey = nvpair_name(whopair); - nvlist_t *perms; - nvpair_t *permpair = NULL; - uint64_t jumpobj; - - if (nvpair_value_nvlist(whopair, &perms) != 0) { - if (zap_lookup(mos, zapobj, whokey, 8, - 1, &jumpobj) == 0) { - (void) zap_remove(mos, zapobj, whokey, tx); - VERIFY(0 == zap_destroy(mos, jumpobj, tx)); - } - spa_history_log_internal_dd(dd, "permission who remove", - tx, "%s", whokey); - continue; - } - - if (zap_lookup(mos, zapobj, whokey, 8, 1, &jumpobj) != 0) - continue; - - while (permpair = nvlist_next_nvpair(perms, permpair)) { - const char *perm = nvpair_name(permpair); - uint64_t n = 0; - - (void) zap_remove(mos, jumpobj, perm, tx); - if (zap_count(mos, jumpobj, &n) == 0 && n == 0) { - (void) zap_remove(mos, zapobj, - whokey, tx); - VERIFY(0 == zap_destroy(mos, - jumpobj, tx)); - } - spa_history_log_internal_dd(dd, "permission remove", tx, - "%s %s", whokey, perm); - } - } - dsl_dir_rele(dd, FTAG); -} - -static int -dsl_deleg_check(void *arg, dmu_tx_t *tx) -{ - dsl_deleg_arg_t *dda = arg; - dsl_dir_t *dd; - int error; - - if (spa_version(dmu_tx_pool(tx)->dp_spa) < - SPA_VERSION_DELEGATED_PERMS) { - return (SET_ERROR(ENOTSUP)); - } - - error = dsl_dir_hold(dmu_tx_pool(tx), dda->dda_name, FTAG, &dd, NULL); - if (error == 0) - dsl_dir_rele(dd, FTAG); - return (error); -} - -int -dsl_deleg_set(const char *ddname, nvlist_t *nvp, boolean_t unset) -{ - dsl_deleg_arg_t dda; - - /* nvp must already have been verified to be valid */ - - dda.dda_name = ddname; - dda.dda_nvlist = nvp; - - return (dsl_sync_task(ddname, dsl_deleg_check, - unset ? dsl_deleg_unset_sync : dsl_deleg_set_sync, - &dda, fnvlist_num_pairs(nvp), ZFS_SPACE_CHECK_RESERVED)); -} - -/* - * Find all 'allow' permissions from a given point and then continue - * traversing up to the root. - * - * This function constructs an nvlist of nvlists. - * each setpoint is an nvlist composed of an nvlist of an nvlist - * of the individual * users/groups/everyone/create - * permissions. - * - * The nvlist will look like this. - * - * { source fsname -> { whokeys { permissions,...}, ...}} - * - * The fsname nvpairs will be arranged in a bottom up order. For example, - * if we have the following structure a/b/c then the nvpairs for the fsnames - * will be ordered a/b/c, a/b, a. - */ -int -dsl_deleg_get(const char *ddname, nvlist_t **nvp) -{ - dsl_dir_t *dd, *startdd; - dsl_pool_t *dp; - int error; - objset_t *mos; - - error = dsl_pool_hold(ddname, FTAG, &dp); - if (error != 0) - return (error); - - error = dsl_dir_hold(dp, ddname, FTAG, &startdd, NULL); - if (error != 0) { - dsl_pool_rele(dp, FTAG); - return (error); - } - - dp = startdd->dd_pool; - mos = dp->dp_meta_objset; - - VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); - - for (dd = startdd; dd != NULL; dd = dd->dd_parent) { - zap_cursor_t basezc; - zap_attribute_t baseza; - nvlist_t *sp_nvp; - uint64_t n; - char source[ZFS_MAX_DATASET_NAME_LEN]; - - if (dsl_dir_phys(dd)->dd_deleg_zapobj == 0 || - zap_count(mos, - dsl_dir_phys(dd)->dd_deleg_zapobj, &n) != 0 || n == 0) - continue; - - sp_nvp = fnvlist_alloc(); - for (zap_cursor_init(&basezc, mos, - dsl_dir_phys(dd)->dd_deleg_zapobj); - zap_cursor_retrieve(&basezc, &baseza) == 0; - zap_cursor_advance(&basezc)) { - zap_cursor_t zc; - zap_attribute_t za; - nvlist_t *perms_nvp; - - ASSERT(baseza.za_integer_length == 8); - ASSERT(baseza.za_num_integers == 1); - - perms_nvp = fnvlist_alloc(); - for (zap_cursor_init(&zc, mos, baseza.za_first_integer); - zap_cursor_retrieve(&zc, &za) == 0; - zap_cursor_advance(&zc)) { - fnvlist_add_boolean(perms_nvp, za.za_name); - } - zap_cursor_fini(&zc); - fnvlist_add_nvlist(sp_nvp, baseza.za_name, perms_nvp); - fnvlist_free(perms_nvp); - } - - zap_cursor_fini(&basezc); - - dsl_dir_name(dd, source); - fnvlist_add_nvlist(*nvp, source, sp_nvp); - nvlist_free(sp_nvp); - } - - dsl_dir_rele(startdd, FTAG); - dsl_pool_rele(dp, FTAG); - return (0); -} - -/* - * Routines for dsl_deleg_access() -- access checking. - */ -typedef struct perm_set { - avl_node_t p_node; - boolean_t p_matched; - char p_setname[ZFS_MAX_DELEG_NAME]; -} perm_set_t; - -static int -perm_set_compare(const void *arg1, const void *arg2) -{ - const perm_set_t *node1 = (const perm_set_t *)arg1; - const perm_set_t *node2 = (const perm_set_t *)arg2; - int val; - - val = strcmp(node1->p_setname, node2->p_setname); - - return (AVL_ISIGN(val)); -} - -/* - * Determine whether a specified permission exists. - * - * First the base attribute has to be retrieved. i.e. ul$12 - * Once the base object has been retrieved the actual permission - * is lookup up in the zap object the base object points to. - * - * Return 0 if permission exists, ENOENT if there is no whokey, EPERM if - * there is no perm in that jumpobj. - */ -static int -dsl_check_access(objset_t *mos, uint64_t zapobj, - char type, char checkflag, void *valp, const char *perm) -{ - int error; - uint64_t jumpobj, zero; - char whokey[ZFS_MAX_DELEG_NAME]; - - zfs_deleg_whokey(whokey, type, checkflag, valp); - error = zap_lookup(mos, zapobj, whokey, 8, 1, &jumpobj); - if (error == 0) { - error = zap_lookup(mos, jumpobj, perm, 8, 1, &zero); - if (error == ENOENT) - error = SET_ERROR(EPERM); - } - return (error); -} - -/* - * check a specified user/group for a requested permission - */ -static int -dsl_check_user_access(objset_t *mos, uint64_t zapobj, const char *perm, - int checkflag, cred_t *cr) -{ - const gid_t *gids; - int ngids; - int i; - uint64_t id; - - /* check for user */ - id = crgetuid(cr); - if (dsl_check_access(mos, zapobj, - ZFS_DELEG_USER, checkflag, &id, perm) == 0) - return (0); - - /* check for users primary group */ - id = crgetgid(cr); - if (dsl_check_access(mos, zapobj, - ZFS_DELEG_GROUP, checkflag, &id, perm) == 0) - return (0); - - /* check for everyone entry */ - id = -1; - if (dsl_check_access(mos, zapobj, - ZFS_DELEG_EVERYONE, checkflag, &id, perm) == 0) - return (0); - - /* check each supplemental group user is a member of */ - ngids = crgetngroups(cr); - gids = crgetgroups(cr); - for (i = 0; i != ngids; i++) { - id = gids[i]; - if (dsl_check_access(mos, zapobj, - ZFS_DELEG_GROUP, checkflag, &id, perm) == 0) - return (0); - } - - return (SET_ERROR(EPERM)); -} - -/* - * Iterate over the sets specified in the specified zapobj - * and load them into the permsets avl tree. - */ -static int -dsl_load_sets(objset_t *mos, uint64_t zapobj, - char type, char checkflag, void *valp, avl_tree_t *avl) -{ - zap_cursor_t zc; - zap_attribute_t za; - perm_set_t *permnode; - avl_index_t idx; - uint64_t jumpobj; - int error; - char whokey[ZFS_MAX_DELEG_NAME]; - - zfs_deleg_whokey(whokey, type, checkflag, valp); - - error = zap_lookup(mos, zapobj, whokey, 8, 1, &jumpobj); - if (error != 0) - return (error); - - for (zap_cursor_init(&zc, mos, jumpobj); - zap_cursor_retrieve(&zc, &za) == 0; - zap_cursor_advance(&zc)) { - permnode = kmem_alloc(sizeof (perm_set_t), KM_SLEEP); - (void) strlcpy(permnode->p_setname, za.za_name, - sizeof (permnode->p_setname)); - permnode->p_matched = B_FALSE; - - if (avl_find(avl, permnode, &idx) == NULL) { - avl_insert(avl, permnode, idx); - } else { - kmem_free(permnode, sizeof (perm_set_t)); - } - } - zap_cursor_fini(&zc); - return (0); -} - -/* - * Load all permissions user based on cred belongs to. - */ -static void -dsl_load_user_sets(objset_t *mos, uint64_t zapobj, avl_tree_t *avl, - char checkflag, cred_t *cr) -{ - const gid_t *gids; - int ngids, i; - uint64_t id; - - id = crgetuid(cr); - (void) dsl_load_sets(mos, zapobj, - ZFS_DELEG_USER_SETS, checkflag, &id, avl); - - id = crgetgid(cr); - (void) dsl_load_sets(mos, zapobj, - ZFS_DELEG_GROUP_SETS, checkflag, &id, avl); - - (void) dsl_load_sets(mos, zapobj, - ZFS_DELEG_EVERYONE_SETS, checkflag, NULL, avl); - - ngids = crgetngroups(cr); - gids = crgetgroups(cr); - for (i = 0; i != ngids; i++) { - id = gids[i]; - (void) dsl_load_sets(mos, zapobj, - ZFS_DELEG_GROUP_SETS, checkflag, &id, avl); - } -} - -/* - * Check if user has requested permission. - */ -int -dsl_deleg_access_impl(dsl_dataset_t *ds, const char *perm, cred_t *cr) -{ - dsl_dir_t *dd; - dsl_pool_t *dp; - void *cookie; - int error; - char checkflag; - objset_t *mos; - avl_tree_t permsets; - perm_set_t *setnode; - - dp = ds->ds_dir->dd_pool; - mos = dp->dp_meta_objset; - - if (dsl_delegation_on(mos) == B_FALSE) - return (SET_ERROR(ECANCELED)); - - if (spa_version(dmu_objset_spa(dp->dp_meta_objset)) < - SPA_VERSION_DELEGATED_PERMS) - return (SET_ERROR(EPERM)); - - if (ds->ds_is_snapshot) { - /* - * Snapshots are treated as descendents only, - * local permissions do not apply. - */ - checkflag = ZFS_DELEG_DESCENDENT; - } else { - checkflag = ZFS_DELEG_LOCAL; - } - - avl_create(&permsets, perm_set_compare, sizeof (perm_set_t), - offsetof(perm_set_t, p_node)); - - ASSERT(dsl_pool_config_held(dp)); - for (dd = ds->ds_dir; dd != NULL; dd = dd->dd_parent, - checkflag = ZFS_DELEG_DESCENDENT) { - uint64_t zapobj; - boolean_t expanded; - - /* - * If not in global zone then make sure - * the zoned property is set - */ - if (!INGLOBALZONE(curthread)) { - uint64_t zoned; - - if (dsl_prop_get_dd(dd, - zfs_prop_to_name(ZFS_PROP_ZONED), - 8, 1, &zoned, NULL, B_FALSE) != 0) - break; - if (!zoned) - break; - } - zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj; - - if (zapobj == 0) - continue; - - dsl_load_user_sets(mos, zapobj, &permsets, checkflag, cr); -again: - expanded = B_FALSE; - for (setnode = avl_first(&permsets); setnode; - setnode = AVL_NEXT(&permsets, setnode)) { - if (setnode->p_matched == B_TRUE) - continue; - - /* See if this set directly grants this permission */ - error = dsl_check_access(mos, zapobj, - ZFS_DELEG_NAMED_SET, 0, setnode->p_setname, perm); - if (error == 0) - goto success; - if (error == EPERM) - setnode->p_matched = B_TRUE; - - /* See if this set includes other sets */ - error = dsl_load_sets(mos, zapobj, - ZFS_DELEG_NAMED_SET_SETS, 0, - setnode->p_setname, &permsets); - if (error == 0) - setnode->p_matched = expanded = B_TRUE; - } - /* - * If we expanded any sets, that will define more sets, - * which we need to check. - */ - if (expanded) - goto again; - - error = dsl_check_user_access(mos, zapobj, perm, checkflag, cr); - if (error == 0) - goto success; - } - error = SET_ERROR(EPERM); -success: - - cookie = NULL; - while ((setnode = avl_destroy_nodes(&permsets, &cookie)) != NULL) - kmem_free(setnode, sizeof (perm_set_t)); - - return (error); -} - -int -dsl_deleg_access(const char *dsname, const char *perm, cred_t *cr) -{ - dsl_pool_t *dp; - dsl_dataset_t *ds; - int error; - - error = dsl_pool_hold(dsname, FTAG, &dp); - if (error != 0) - return (error); - error = dsl_dataset_hold(dp, dsname, FTAG, &ds); - if (error == 0) { - error = dsl_deleg_access_impl(ds, perm, cr); - dsl_dataset_rele(ds, FTAG); - } - dsl_pool_rele(dp, FTAG); - - return (error); -} - -/* - * Other routines. - */ - -static void -copy_create_perms(dsl_dir_t *dd, uint64_t pzapobj, - boolean_t dosets, uint64_t uid, dmu_tx_t *tx) -{ - objset_t *mos = dd->dd_pool->dp_meta_objset; - uint64_t jumpobj, pjumpobj; - uint64_t zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj; - zap_cursor_t zc; - zap_attribute_t za; - char whokey[ZFS_MAX_DELEG_NAME]; - - zfs_deleg_whokey(whokey, - dosets ? ZFS_DELEG_CREATE_SETS : ZFS_DELEG_CREATE, - ZFS_DELEG_LOCAL, NULL); - if (zap_lookup(mos, pzapobj, whokey, 8, 1, &pjumpobj) != 0) - return; - - if (zapobj == 0) { - dmu_buf_will_dirty(dd->dd_dbuf, tx); - zapobj = dsl_dir_phys(dd)->dd_deleg_zapobj = zap_create(mos, - DMU_OT_DSL_PERMS, DMU_OT_NONE, 0, tx); - } - - zfs_deleg_whokey(whokey, - dosets ? ZFS_DELEG_USER_SETS : ZFS_DELEG_USER, - ZFS_DELEG_LOCAL, &uid); - if (zap_lookup(mos, zapobj, whokey, 8, 1, &jumpobj) == ENOENT) { - jumpobj = zap_create(mos, DMU_OT_DSL_PERMS, DMU_OT_NONE, 0, tx); - VERIFY(zap_add(mos, zapobj, whokey, 8, 1, &jumpobj, tx) == 0); - } - - for (zap_cursor_init(&zc, mos, pjumpobj); - zap_cursor_retrieve(&zc, &za) == 0; - zap_cursor_advance(&zc)) { - uint64_t zero = 0; - ASSERT(za.za_integer_length == 8 && za.za_num_integers == 1); - - VERIFY(zap_update(mos, jumpobj, za.za_name, - 8, 1, &zero, tx) == 0); - } - zap_cursor_fini(&zc); -} - -/* - * set all create time permission on new dataset. - */ -void -dsl_deleg_set_create_perms(dsl_dir_t *sdd, dmu_tx_t *tx, cred_t *cr) -{ - dsl_dir_t *dd; - uint64_t uid = crgetuid(cr); - - if (spa_version(dmu_objset_spa(sdd->dd_pool->dp_meta_objset)) < - SPA_VERSION_DELEGATED_PERMS) - return; - - for (dd = sdd->dd_parent; dd != NULL; dd = dd->dd_parent) { - uint64_t pzapobj = dsl_dir_phys(dd)->dd_deleg_zapobj; - - if (pzapobj == 0) - continue; - - copy_create_perms(sdd, pzapobj, B_FALSE, uid, tx); - copy_create_perms(sdd, pzapobj, B_TRUE, uid, tx); - } -} - -int -dsl_deleg_destroy(objset_t *mos, uint64_t zapobj, dmu_tx_t *tx) -{ - zap_cursor_t zc; - zap_attribute_t za; - - if (zapobj == 0) - return (0); - - for (zap_cursor_init(&zc, mos, zapobj); - zap_cursor_retrieve(&zc, &za) == 0; - zap_cursor_advance(&zc)) { - ASSERT(za.za_integer_length == 8 && za.za_num_integers == 1); - VERIFY(0 == zap_destroy(mos, za.za_first_integer, tx)); - } - zap_cursor_fini(&zc); - VERIFY(0 == zap_destroy(mos, zapobj, tx)); - return (0); -} - -boolean_t -dsl_delegation_on(objset_t *os) -{ - return (!!spa_delegation(os->os_spa)); -} |