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.
26 #include <sys/systm.h>
27 #include <sys/sunddi.h>
28 #include <sys/ctype.h>
33 #include <libnvpair.h>
36 /* XXX includes zfs_context.h, so why bother with the above? */
37 #include <sys/dsl_deleg.h>
39 #include "zfs_deleg.h"
40 #include "zfs_namecheck.h"
45 * Keep this table in sorted order
47 * This table is used for displaying all permissions for
51 zfs_deleg_perm_tab_t zfs_deleg_perm_tab[] = {
52 {ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW},
53 {ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
54 {ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
55 {ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
56 {ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
57 {ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
58 {ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
59 {ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
60 {ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
61 {ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
62 {ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
63 {ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_NONE },
64 {ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
65 {ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA },
66 {ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA },
67 {ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED },
68 {ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED },
69 {ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD },
70 {ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE },
71 {ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF},
72 {NULL, ZFS_DELEG_NOTE_NONE }
76 zfs_valid_permission_name(const char *perm)
78 if (zfs_deleg_canonicalize_perm(perm))
81 return (permset_namecheck(perm, NULL, NULL));
85 zfs_deleg_canonicalize_perm(const char *perm)
90 for (i = 0; zfs_deleg_perm_tab[i].z_perm != NULL; i++) {
91 if (strcmp(perm, zfs_deleg_perm_tab[i].z_perm) == 0)
95 prop = zfs_name_to_prop(perm);
96 if (prop != ZPROP_INVAL && zfs_prop_delegatable(prop))
97 return (zfs_prop_to_name(prop));
103 zfs_validate_who(char *who)
107 if (who[2] != ZFS_DELEG_FIELD_SEP_CHR)
112 case ZFS_DELEG_GROUP:
113 case ZFS_DELEG_USER_SETS:
114 case ZFS_DELEG_GROUP_SETS:
115 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
117 for (p = &who[3]; *p; p++)
122 case ZFS_DELEG_NAMED_SET:
123 case ZFS_DELEG_NAMED_SET_SETS:
124 if (who[1] != ZFS_DELEG_NA)
126 return (permset_namecheck(&who[3], NULL, NULL));
128 case ZFS_DELEG_CREATE:
129 case ZFS_DELEG_CREATE_SETS:
130 if (who[1] != ZFS_DELEG_NA)
136 case ZFS_DELEG_EVERYONE:
137 case ZFS_DELEG_EVERYONE_SETS:
138 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
152 zfs_deleg_verify_nvlist(nvlist_t *nvp)
154 nvpair_t *who, *perm_name;
161 who = nvlist_next_nvpair(nvp, NULL);
166 if (zfs_validate_who(nvpair_name(who)))
169 error = nvlist_lookup_nvlist(nvp, nvpair_name(who), &perms);
171 if (error && error != ENOENT)
176 perm_name = nvlist_next_nvpair(perms, NULL);
177 if (perm_name == NULL) {
181 error = zfs_valid_permission_name(
182 nvpair_name(perm_name));
185 } while (perm_name = nvlist_next_nvpair(perms, perm_name));
186 } while (who = nvlist_next_nvpair(nvp, who));
191 * Construct the base attribute name. The base attribute names
192 * are the "key" to locate the jump objects which contain the actual
193 * permissions. The base attribute names are encoded based on
194 * type of entry and whether it is a local or descendent permission.
197 * attr - attribute name return string, attribute is assumed to be
198 * ZFS_MAX_DELEG_NAME long.
199 * type - type of entry to construct
200 * inheritchr - inheritance type (local,descendent, or NA for create and
201 * permission set definitions
202 * data - is either a permission set name or a 64 bit uid/gid.
205 zfs_deleg_whokey(char *attr, zfs_deleg_who_type_t type,
206 char inheritchr, void *data)
208 int len = ZFS_MAX_DELEG_NAME;
213 case ZFS_DELEG_GROUP:
214 case ZFS_DELEG_USER_SETS:
215 case ZFS_DELEG_GROUP_SETS:
216 (void) snprintf(attr, len, "%c%c%c%lld", type, inheritchr,
217 ZFS_DELEG_FIELD_SEP_CHR, (longlong_t)*id);
219 case ZFS_DELEG_NAMED_SET_SETS:
220 case ZFS_DELEG_NAMED_SET:
221 (void) snprintf(attr, len, "%c-%c%s", type,
222 ZFS_DELEG_FIELD_SEP_CHR, (char *)data);
224 case ZFS_DELEG_CREATE:
225 case ZFS_DELEG_CREATE_SETS:
226 (void) snprintf(attr, len, "%c-%c", type,
227 ZFS_DELEG_FIELD_SEP_CHR);
229 case ZFS_DELEG_EVERYONE:
230 case ZFS_DELEG_EVERYONE_SETS:
231 (void) snprintf(attr, len, "%c%c%c", type, inheritchr,
232 ZFS_DELEG_FIELD_SEP_CHR);
235 ASSERT(!"bad zfs_deleg_who_type_t");