4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
27 #include <sys/systm.h>
28 #include <sys/sunddi.h>
29 #include <sys/ctype.h>
34 #include <libnvpair.h>
37 /* XXX includes zfs_context.h, so why bother with the above? */
38 #include <sys/dsl_deleg.h>
40 #include "zfs_deleg.h"
41 #include "zfs_namecheck.h"
46 * Keep this table in sorted order
48 * This table is used for displaying all permissions for
52 zfs_deleg_perm_tab_t zfs_deleg_perm_tab[] = {
53 {ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW},
54 {ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
55 {ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
56 {ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
57 {ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
58 {ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
59 {ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
60 {ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
61 {ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
62 {ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
63 {ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
64 {ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND },
65 {ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
66 {ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
67 {ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
68 {ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
69 {ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
70 {ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
71 {ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
72 {ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
73 {NULL, ZFS_DELEG_NOTE_NONE }
77 zfs_valid_permission_name(const char *perm)
79 if (zfs_deleg_canonicalize_perm(perm))
82 return (permset_namecheck(perm, NULL, NULL));
86 zfs_deleg_canonicalize_perm(const char *perm)
91 for (i = 0; zfs_deleg_perm_tab[i].z_perm != NULL; i++) {
92 if (strcmp(perm, zfs_deleg_perm_tab[i].z_perm) == 0)
96 prop = zfs_name_to_prop(perm);
97 if (prop != ZPROP_INVAL && zfs_prop_delegatable(prop))
98 return (zfs_prop_to_name(prop));
104 zfs_validate_who(char *who)
108 if (who[2] != ZFS_DELEG_FIELD_SEP_CHR)
113 case ZFS_DELEG_GROUP:
114 case ZFS_DELEG_USER_SETS:
115 case ZFS_DELEG_GROUP_SETS:
116 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
118 for (p = &who[3]; *p; p++)
123 case ZFS_DELEG_NAMED_SET:
124 case ZFS_DELEG_NAMED_SET_SETS:
125 if (who[1] != ZFS_DELEG_NA)
127 return (permset_namecheck(&who[3], NULL, NULL));
129 case ZFS_DELEG_CREATE:
130 case ZFS_DELEG_CREATE_SETS:
131 if (who[1] != ZFS_DELEG_NA)
137 case ZFS_DELEG_EVERYONE:
138 case ZFS_DELEG_EVERYONE_SETS:
139 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
153 zfs_deleg_verify_nvlist(nvlist_t *nvp)
155 nvpair_t *who, *perm_name;
162 who = nvlist_next_nvpair(nvp, NULL);
167 if (zfs_validate_who(nvpair_name(who)))
170 error = nvlist_lookup_nvlist(nvp, nvpair_name(who), &perms);
172 if (error && error != ENOENT)
177 perm_name = nvlist_next_nvpair(perms, NULL);
178 if (perm_name == NULL) {
182 error = zfs_valid_permission_name(
183 nvpair_name(perm_name));
186 } while ((perm_name = nvlist_next_nvpair(perms, perm_name)));
187 } while ((who = nvlist_next_nvpair(nvp, who)));
192 * Construct the base attribute name. The base attribute names
193 * are the "key" to locate the jump objects which contain the actual
194 * permissions. The base attribute names are encoded based on
195 * type of entry and whether it is a local or descendent permission.
198 * attr - attribute name return string, attribute is assumed to be
199 * ZFS_MAX_DELEG_NAME long.
200 * type - type of entry to construct
201 * inheritchr - inheritance type (local,descendent, or NA for create and
202 * permission set definitions
203 * data - is either a permission set name or a 64 bit uid/gid.
206 zfs_deleg_whokey(char *attr, zfs_deleg_who_type_t type,
207 char inheritchr, void *data)
209 int len = ZFS_MAX_DELEG_NAME;
214 case ZFS_DELEG_GROUP:
215 case ZFS_DELEG_USER_SETS:
216 case ZFS_DELEG_GROUP_SETS:
217 (void) snprintf(attr, len, "%c%c%c%lld", type, inheritchr,
218 ZFS_DELEG_FIELD_SEP_CHR, (longlong_t)*id);
220 case ZFS_DELEG_NAMED_SET_SETS:
221 case ZFS_DELEG_NAMED_SET:
222 (void) snprintf(attr, len, "%c-%c%s", type,
223 ZFS_DELEG_FIELD_SEP_CHR, (char *)data);
225 case ZFS_DELEG_CREATE:
226 case ZFS_DELEG_CREATE_SETS:
227 (void) snprintf(attr, len, "%c-%c", type,
228 ZFS_DELEG_FIELD_SEP_CHR);
230 case ZFS_DELEG_EVERYONE:
231 case ZFS_DELEG_EVERYONE_SETS:
232 (void) snprintf(attr, len, "%c%c%c", type, inheritchr,
233 ZFS_DELEG_FIELD_SEP_CHR);
236 ASSERT(!"bad zfs_deleg_who_type_t");
240 #if defined(_KERNEL) && defined(HAVE_SPL)
241 EXPORT_SYMBOL(zfs_deleg_verify_nvlist);
242 EXPORT_SYMBOL(zfs_deleg_whokey);
243 EXPORT_SYMBOL(zfs_deleg_canonicalize_perm);