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