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 __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 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 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 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 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 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 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 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