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.
24 * Copyright (c) 2013, 2015 by Delphix. All rights reserved.
25 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
28 #include <sys/zfs_context.h>
31 #include <sys/sunddi.h>
32 #include <sys/ctype.h>
36 #include <libnvpair.h>
39 #include <sys/strings.h>
40 #include <sys/dsl_deleg.h>
42 #include "zfs_deleg.h"
43 #include "zfs_namecheck.h"
45 zfs_deleg_perm_tab_t zfs_deleg_perm_tab
[] = {
46 {ZFS_DELEG_PERM_ALLOW
},
47 {ZFS_DELEG_PERM_BOOKMARK
},
48 {ZFS_DELEG_PERM_CLONE
},
49 {ZFS_DELEG_PERM_CREATE
},
50 {ZFS_DELEG_PERM_DESTROY
},
51 {ZFS_DELEG_PERM_DIFF
},
52 {ZFS_DELEG_PERM_MOUNT
},
53 {ZFS_DELEG_PERM_PROMOTE
},
54 {ZFS_DELEG_PERM_RECEIVE
},
55 {ZFS_DELEG_PERM_REMAP
},
56 {ZFS_DELEG_PERM_RENAME
},
57 {ZFS_DELEG_PERM_ROLLBACK
},
58 {ZFS_DELEG_PERM_SNAPSHOT
},
59 {ZFS_DELEG_PERM_SHARE
},
60 {ZFS_DELEG_PERM_SEND
},
61 {ZFS_DELEG_PERM_USERPROP
},
62 {ZFS_DELEG_PERM_USERQUOTA
},
63 {ZFS_DELEG_PERM_GROUPQUOTA
},
64 {ZFS_DELEG_PERM_USERUSED
},
65 {ZFS_DELEG_PERM_GROUPUSED
},
66 {ZFS_DELEG_PERM_USEROBJQUOTA
},
67 {ZFS_DELEG_PERM_GROUPOBJQUOTA
},
68 {ZFS_DELEG_PERM_USEROBJUSED
},
69 {ZFS_DELEG_PERM_GROUPOBJUSED
},
70 {ZFS_DELEG_PERM_HOLD
},
71 {ZFS_DELEG_PERM_RELEASE
},
72 {ZFS_DELEG_PERM_LOAD_KEY
},
73 {ZFS_DELEG_PERM_CHANGE_KEY
},
74 {ZFS_DELEG_PERM_PROJECTUSED
},
75 {ZFS_DELEG_PERM_PROJECTQUOTA
},
76 {ZFS_DELEG_PERM_PROJECTOBJUSED
},
77 {ZFS_DELEG_PERM_PROJECTOBJQUOTA
},
82 zfs_valid_permission_name(const char *perm
)
84 if (zfs_deleg_canonicalize_perm(perm
))
87 return (permset_namecheck(perm
, NULL
, NULL
));
91 zfs_deleg_canonicalize_perm(const char *perm
)
96 for (i
= 0; zfs_deleg_perm_tab
[i
].z_perm
!= NULL
; i
++) {
97 if (strcmp(perm
, zfs_deleg_perm_tab
[i
].z_perm
) == 0)
101 prop
= zfs_name_to_prop(perm
);
102 if (prop
!= ZPROP_INVAL
&& zfs_prop_delegatable(prop
))
103 return (zfs_prop_to_name(prop
));
109 zfs_validate_who(char *who
)
113 if (who
[2] != ZFS_DELEG_FIELD_SEP_CHR
)
118 case ZFS_DELEG_GROUP
:
119 case ZFS_DELEG_USER_SETS
:
120 case ZFS_DELEG_GROUP_SETS
:
121 if (who
[1] != ZFS_DELEG_LOCAL
&& who
[1] != ZFS_DELEG_DESCENDENT
)
123 for (p
= &who
[3]; *p
; p
++)
128 case ZFS_DELEG_NAMED_SET
:
129 case ZFS_DELEG_NAMED_SET_SETS
:
130 if (who
[1] != ZFS_DELEG_NA
)
132 return (permset_namecheck(&who
[3], NULL
, NULL
));
134 case ZFS_DELEG_CREATE
:
135 case ZFS_DELEG_CREATE_SETS
:
136 if (who
[1] != ZFS_DELEG_NA
)
142 case ZFS_DELEG_EVERYONE
:
143 case ZFS_DELEG_EVERYONE_SETS
:
144 if (who
[1] != ZFS_DELEG_LOCAL
&& who
[1] != ZFS_DELEG_DESCENDENT
)
158 zfs_deleg_verify_nvlist(nvlist_t
*nvp
)
160 nvpair_t
*who
, *perm_name
;
167 who
= nvlist_next_nvpair(nvp
, NULL
);
172 if (zfs_validate_who(nvpair_name(who
)))
175 error
= nvlist_lookup_nvlist(nvp
, nvpair_name(who
), &perms
);
177 if (error
&& error
!= ENOENT
)
182 perm_name
= nvlist_next_nvpair(perms
, NULL
);
183 if (perm_name
== NULL
) {
187 error
= zfs_valid_permission_name(
188 nvpair_name(perm_name
));
191 } while ((perm_name
= nvlist_next_nvpair(perms
, perm_name
))
193 } while ((who
= nvlist_next_nvpair(nvp
, who
)) != NULL
);
198 * Construct the base attribute name. The base attribute names
199 * are the "key" to locate the jump objects which contain the actual
200 * permissions. The base attribute names are encoded based on
201 * type of entry and whether it is a local or descendent permission.
204 * attr - attribute name return string, attribute is assumed to be
205 * ZFS_MAX_DELEG_NAME long.
206 * type - type of entry to construct
207 * inheritchr - inheritance type (local,descendent, or NA for create and
208 * permission set definitions
209 * data - is either a permission set name or a 64 bit uid/gid.
212 zfs_deleg_whokey(char *attr
, zfs_deleg_who_type_t type
,
213 char inheritchr
, void *data
)
215 int len
= ZFS_MAX_DELEG_NAME
;
220 case ZFS_DELEG_GROUP
:
221 case ZFS_DELEG_USER_SETS
:
222 case ZFS_DELEG_GROUP_SETS
:
223 (void) snprintf(attr
, len
, "%c%c%c%lld", type
, inheritchr
,
224 ZFS_DELEG_FIELD_SEP_CHR
, (longlong_t
)*id
);
226 case ZFS_DELEG_NAMED_SET_SETS
:
227 case ZFS_DELEG_NAMED_SET
:
228 (void) snprintf(attr
, len
, "%c-%c%s", type
,
229 ZFS_DELEG_FIELD_SEP_CHR
, (char *)data
);
231 case ZFS_DELEG_CREATE
:
232 case ZFS_DELEG_CREATE_SETS
:
233 (void) snprintf(attr
, len
, "%c-%c", type
,
234 ZFS_DELEG_FIELD_SEP_CHR
);
236 case ZFS_DELEG_EVERYONE
:
237 case ZFS_DELEG_EVERYONE_SETS
:
238 (void) snprintf(attr
, len
, "%c%c%c", type
, inheritchr
,
239 ZFS_DELEG_FIELD_SEP_CHR
);
242 ASSERT(!"bad zfs_deleg_who_type_t");
247 EXPORT_SYMBOL(zfs_deleg_verify_nvlist
);
248 EXPORT_SYMBOL(zfs_deleg_whokey
);
249 EXPORT_SYMBOL(zfs_deleg_canonicalize_perm
);