1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2008, 2009 Edward Tomasz Napierała <trasz@FreeBSD.org>
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 <stdio.h>
29 #include <errno.h>
30 #include <sys/acl.h>
31
32 #include "acl_support.h"
33
34 static int
_flag_is_invalid(acl_flag_t flag)35 _flag_is_invalid(acl_flag_t flag)
36 {
37
38 if ((flag & ACL_FLAGS_BITS) == flag)
39 return (0);
40
41 errno = EINVAL;
42
43 return (1);
44 }
45
46 int
acl_add_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)47 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
48 {
49
50 if (flagset_d == NULL) {
51 errno = EINVAL;
52 return (-1);
53 }
54
55 if (_flag_is_invalid(flag))
56 return (-1);
57
58 *flagset_d |= flag;
59
60 return (0);
61 }
62
63 int
acl_clear_flags_np(acl_flagset_t flagset_d)64 acl_clear_flags_np(acl_flagset_t flagset_d)
65 {
66
67 if (flagset_d == NULL) {
68 errno = EINVAL;
69 return (-1);
70 }
71
72 *flagset_d = 0;
73
74 return (0);
75 }
76
77 int
acl_delete_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)78 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
79 {
80
81 if (flagset_d == NULL) {
82 errno = EINVAL;
83 return (-1);
84 }
85
86 if (_flag_is_invalid(flag))
87 return (-1);
88
89 *flagset_d &= ~flag;
90
91 return (0);
92 }
93
94 int
acl_get_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)95 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
96 {
97
98 if (flagset_d == NULL) {
99 errno = EINVAL;
100 return (-1);
101 }
102
103 if (_flag_is_invalid(flag))
104 return (-1);
105
106 if (*flagset_d & flag)
107 return (1);
108
109 return (0);
110 }
111
112 int
acl_get_flagset_np(acl_entry_t entry_d,acl_flagset_t * flagset_p)113 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p)
114 {
115
116 if (entry_d == NULL || flagset_p == NULL) {
117 errno = EINVAL;
118 return (-1);
119 }
120
121 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
122 errno = EINVAL;
123 return (-1);
124 }
125
126 *flagset_p = &entry_d->ae_flags;
127
128 return (0);
129 }
130
131 int
acl_set_flagset_np(acl_entry_t entry_d,acl_flagset_t flagset_d)132 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d)
133 {
134
135 if (entry_d == NULL) {
136 errno = EINVAL;
137 return (-1);
138 }
139
140 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
141 errno = EINVAL;
142 return (-1);
143 }
144
145 _entry_brand_as(entry_d, ACL_BRAND_NFS4);
146
147 if (_flag_is_invalid(*flagset_d))
148 return (-1);
149
150 entry_d->ae_flags = *flagset_d;
151
152 return (0);
153 }
154