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 <sys/cdefs.h>
29 #include <stdio.h>
30 #include <errno.h>
31 #include <sys/acl.h>
32
33 #include "acl_support.h"
34
35 static int
_flag_is_invalid(acl_flag_t flag)36 _flag_is_invalid(acl_flag_t flag)
37 {
38
39 if ((flag & ACL_FLAGS_BITS) == flag)
40 return (0);
41
42 errno = EINVAL;
43
44 return (1);
45 }
46
47 int
acl_add_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)48 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
49 {
50
51 if (flagset_d == NULL) {
52 errno = EINVAL;
53 return (-1);
54 }
55
56 if (_flag_is_invalid(flag))
57 return (-1);
58
59 *flagset_d |= flag;
60
61 return (0);
62 }
63
64 int
acl_clear_flags_np(acl_flagset_t flagset_d)65 acl_clear_flags_np(acl_flagset_t flagset_d)
66 {
67
68 if (flagset_d == NULL) {
69 errno = EINVAL;
70 return (-1);
71 }
72
73 *flagset_d = 0;
74
75 return (0);
76 }
77
78 int
acl_delete_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)79 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
80 {
81
82 if (flagset_d == NULL) {
83 errno = EINVAL;
84 return (-1);
85 }
86
87 if (_flag_is_invalid(flag))
88 return (-1);
89
90 *flagset_d &= ~flag;
91
92 return (0);
93 }
94
95 int
acl_get_flag_np(acl_flagset_t flagset_d,acl_flag_t flag)96 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
97 {
98
99 if (flagset_d == NULL) {
100 errno = EINVAL;
101 return (-1);
102 }
103
104 if (_flag_is_invalid(flag))
105 return (-1);
106
107 if (*flagset_d & flag)
108 return (1);
109
110 return (0);
111 }
112
113 int
acl_get_flagset_np(acl_entry_t entry_d,acl_flagset_t * flagset_p)114 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p)
115 {
116
117 if (entry_d == NULL || flagset_p == NULL) {
118 errno = EINVAL;
119 return (-1);
120 }
121
122 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
123 errno = EINVAL;
124 return (-1);
125 }
126
127 *flagset_p = &entry_d->ae_flags;
128
129 return (0);
130 }
131
132 int
acl_set_flagset_np(acl_entry_t entry_d,acl_flagset_t flagset_d)133 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d)
134 {
135
136 if (entry_d == NULL) {
137 errno = EINVAL;
138 return (-1);
139 }
140
141 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
142 errno = EINVAL;
143 return (-1);
144 }
145
146 _entry_brand_as(entry_d, ACL_BRAND_NFS4);
147
148 if (_flag_is_invalid(*flagset_d))
149 return (-1);
150
151 entry_d->ae_flags = *flagset_d;
152
153 return (0);
154 }
155