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--- old/usr/src/common/zfs/zfs_deleg.c
+++ new/usr/src/common/zfs/zfs_deleg.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 */
25 25
26 26
27 27 #pragma ident "%Z%%M% %I% %E% SMI"
28 28
29 29 #if defined(_KERNEL)
30 30 #include <sys/systm.h>
31 31 #include <sys/sunddi.h>
32 32 #include <sys/ctype.h>
33 33 #else
34 34 #include <stdio.h>
35 35 #include <unistd.h>
36 36 #include <strings.h>
37 37 #include <libnvpair.h>
38 38 #include <ctype.h>
39 39 #endif
40 40 /* XXX includes zfs_context.h, so why bother with the above? */
41 41 #include <sys/dsl_deleg.h>
42 42 #include "zfs_prop.h"
43 43 #include "zfs_deleg.h"
44 44 #include "zfs_namecheck.h"
45 45
46 46 /*
47 47 * permission table
48 48 *
49 49 * Keep this table in sorted order
50 50 *
51 51 * This table is used for displaying all permissions for
52 52 * zfs allow
53 53 */
54 54
55 55 zfs_deleg_perm_tab_t zfs_deleg_perm_tab[] = {
56 56 {ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW},
57 57 {ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE },
58 58 {ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE },
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59 59 {ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY },
60 60 {ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT },
61 61 {ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE },
62 62 {ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE },
63 63 {ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME },
64 64 {ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK },
65 65 {ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT },
66 66 {ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE },
67 67 {ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_NONE },
68 68 {ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP },
69 + {ZFS_DELEG_PERM_CRYPTO_DSL, ZFS_DELEG_NOTE_CRYPTO_DSL },
70 + {ZFS_DELEG_PERM_CRYPTO_DSL_CHANGE, ZFS_DELEG_NOTE_CRYPTO_DSL_CHANGE },
69 71 {NULL, ZFS_DELEG_NOTE_NONE }
70 72 };
71 73
72 74 static int
73 75 zfs_valid_permission_name(const char *perm)
74 76 {
75 77 if (zfs_deleg_canonicalize_perm(perm))
76 78 return (0);
77 79
78 80 return (permset_namecheck(perm, NULL, NULL));
79 81 }
80 82
81 83 const char *
82 84 zfs_deleg_canonicalize_perm(const char *perm)
83 85 {
84 86 int i;
85 87 zfs_prop_t prop;
86 88
87 89 for (i = 0; zfs_deleg_perm_tab[i].z_perm != NULL; i++) {
88 90 if (strcmp(perm, zfs_deleg_perm_tab[i].z_perm) == 0)
89 91 return (perm);
90 92 }
91 93
92 94 prop = zfs_name_to_prop(perm);
93 95 if (prop != ZPROP_INVAL && zfs_prop_delegatable(prop))
94 96 return (zfs_prop_to_name(prop));
95 97 return (NULL);
96 98
97 99 }
98 100
99 101 static int
100 102 zfs_validate_who(char *who)
101 103 {
102 104 char *p;
103 105
104 106 if (who[2] != ZFS_DELEG_FIELD_SEP_CHR)
105 107 return (-1);
106 108
107 109 switch (who[0]) {
108 110 case ZFS_DELEG_USER:
109 111 case ZFS_DELEG_GROUP:
110 112 case ZFS_DELEG_USER_SETS:
111 113 case ZFS_DELEG_GROUP_SETS:
112 114 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
113 115 return (-1);
114 116 for (p = &who[3]; *p; p++)
115 117 if (!isdigit(*p))
116 118 return (-1);
117 119 break;
118 120
119 121 case ZFS_DELEG_NAMED_SET:
120 122 case ZFS_DELEG_NAMED_SET_SETS:
121 123 if (who[1] != ZFS_DELEG_NA)
122 124 return (-1);
123 125 return (permset_namecheck(&who[3], NULL, NULL));
124 126
125 127 case ZFS_DELEG_CREATE:
126 128 case ZFS_DELEG_CREATE_SETS:
127 129 if (who[1] != ZFS_DELEG_NA)
128 130 return (-1);
129 131 if (who[3] != '\0')
130 132 return (-1);
131 133 break;
132 134
133 135 case ZFS_DELEG_EVERYONE:
134 136 case ZFS_DELEG_EVERYONE_SETS:
135 137 if (who[1] != ZFS_DELEG_LOCAL && who[1] != ZFS_DELEG_DESCENDENT)
136 138 return (-1);
137 139 if (who[3] != '\0')
138 140 return (-1);
139 141 break;
140 142
141 143 default:
142 144 return (-1);
143 145 }
144 146
145 147 return (0);
146 148 }
147 149
148 150 int
149 151 zfs_deleg_verify_nvlist(nvlist_t *nvp)
150 152 {
151 153 nvpair_t *who, *perm_name;
152 154 nvlist_t *perms;
153 155 int error;
154 156
155 157 if (nvp == NULL)
156 158 return (-1);
157 159
158 160 who = nvlist_next_nvpair(nvp, NULL);
159 161 if (who == NULL)
160 162 return (-1);
161 163
162 164 do {
163 165 if (zfs_validate_who(nvpair_name(who)))
164 166 return (-1);
165 167
166 168 error = nvlist_lookup_nvlist(nvp, nvpair_name(who), &perms);
167 169
168 170 if (error && error != ENOENT)
169 171 return (-1);
170 172 if (error == ENOENT)
171 173 continue;
172 174
173 175 perm_name = nvlist_next_nvpair(perms, NULL);
174 176 if (perm_name == NULL) {
175 177 return (-1);
176 178 }
177 179 do {
178 180 error = zfs_valid_permission_name(
179 181 nvpair_name(perm_name));
180 182 if (error)
181 183 return (-1);
182 184 } while (perm_name = nvlist_next_nvpair(perms, perm_name));
183 185 } while (who = nvlist_next_nvpair(nvp, who));
184 186 return (0);
185 187 }
186 188
187 189 /*
188 190 * Construct the base attribute name. The base attribute names
189 191 * are the "key" to locate the jump objects which contain the actual
190 192 * permissions. The base attribute names are encoded based on
191 193 * type of entry and whether it is a local or descendent permission.
192 194 *
193 195 * Arguments:
194 196 * attr - attribute name return string, attribute is assumed to be
195 197 * ZFS_MAX_DELEG_NAME long.
196 198 * type - type of entry to construct
197 199 * inheritchr - inheritance type (local,descendent, or NA for create and
198 200 * permission set definitions
199 201 * data - is either a permission set name or a 64 bit uid/gid.
200 202 */
201 203 void
202 204 zfs_deleg_whokey(char *attr, zfs_deleg_who_type_t type,
203 205 char inheritchr, void *data)
204 206 {
205 207 int len = ZFS_MAX_DELEG_NAME;
206 208 uint64_t *id = data;
207 209
208 210 switch (type) {
209 211 case ZFS_DELEG_USER:
210 212 case ZFS_DELEG_GROUP:
211 213 case ZFS_DELEG_USER_SETS:
212 214 case ZFS_DELEG_GROUP_SETS:
213 215 (void) snprintf(attr, len, "%c%c%c%lld", type, inheritchr,
214 216 ZFS_DELEG_FIELD_SEP_CHR, (longlong_t)*id);
215 217 break;
216 218 case ZFS_DELEG_NAMED_SET_SETS:
217 219 case ZFS_DELEG_NAMED_SET:
218 220 (void) snprintf(attr, len, "%c-%c%s", type,
219 221 ZFS_DELEG_FIELD_SEP_CHR, (char *)data);
220 222 break;
221 223 case ZFS_DELEG_CREATE:
222 224 case ZFS_DELEG_CREATE_SETS:
223 225 (void) snprintf(attr, len, "%c-%c", type,
224 226 ZFS_DELEG_FIELD_SEP_CHR);
225 227 break;
226 228 case ZFS_DELEG_EVERYONE:
227 229 case ZFS_DELEG_EVERYONE_SETS:
228 230 (void) snprintf(attr, len, "%c%c%c", type, inheritchr,
229 231 ZFS_DELEG_FIELD_SEP_CHR);
230 232 break;
231 233 default:
232 234 ASSERT(!"bad zfs_deleg_who_type_t");
233 235 }
234 236 }
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