1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2008, 2009 Edward Tomasz Napierała <[email protected]>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 #include <stdio.h>
32 #include <errno.h>
33 #include <sys/acl.h>
34
35 #include "acl_support.h"
36
37 static int
_flag_is_invalid(acl_flag_t flag)38 _flag_is_invalid(acl_flag_t flag)
39 {
40
41 if ((flag & ACL_FLAGS_BITS) == flag)
42 return (0);
43
44 errno = EINVAL;
45
46 return (1);
47 }
48
49 int
acl_add_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)50 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
51 {
52
53 if (flagset_d == NULL) {
54 errno = EINVAL;
55 return (-1);
56 }
57
58 if (_flag_is_invalid(flag))
59 return (-1);
60
61 *flagset_d |= flag;
62
63 return (0);
64 }
65
66 int
acl_clear_flags_np(acl_flagset_t flagset_d)67 acl_clear_flags_np(acl_flagset_t flagset_d)
68 {
69
70 if (flagset_d == NULL) {
71 errno = EINVAL;
72 return (-1);
73 }
74
75 *flagset_d = 0;
76
77 return (0);
78 }
79
80 int
acl_delete_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)81 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
82 {
83
84 if (flagset_d == NULL) {
85 errno = EINVAL;
86 return (-1);
87 }
88
89 if (_flag_is_invalid(flag))
90 return (-1);
91
92 *flagset_d &= ~flag;
93
94 return (0);
95 }
96
97 int
acl_get_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)98 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
99 {
100
101 if (flagset_d == NULL) {
102 errno = EINVAL;
103 return (-1);
104 }
105
106 if (_flag_is_invalid(flag))
107 return (-1);
108
109 if (*flagset_d & flag)
110 return (1);
111
112 return (0);
113 }
114
115 int
acl_get_flagset_np(acl_entry_t entry_d,acl_flagset_t * flagset_p)116 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p)
117 {
118
119 if (entry_d == NULL || flagset_p == NULL) {
120 errno = EINVAL;
121 return (-1);
122 }
123
124 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
125 errno = EINVAL;
126 return (-1);
127 }
128
129 *flagset_p = &entry_d->ae_flags;
130
131 return (0);
132 }
133
134 int
acl_set_flagset_np(acl_entry_t entry_d,acl_flagset_t flagset_d)135 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d)
136 {
137
138 if (entry_d == NULL) {
139 errno = EINVAL;
140 return (-1);
141 }
142
143 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
144 errno = EINVAL;
145 return (-1);
146 }
147
148 _entry_brand_as(entry_d, ACL_BRAND_NFS4);
149
150 if (_flag_is_invalid(*flagset_d))
151 return (-1);
152
153 entry_d->ae_flags = *flagset_d;
154
155 return (0);
156 }
157