1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2008, 2009 Edward Tomasz Napierała <trasz@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <stdio.h> 33 #include <errno.h> 34 #include <sys/acl.h> 35 36 #include "acl_support.h" 37 38 static int 39 _flag_is_invalid(acl_flag_t flag) 40 { 41 42 if ((flag & ACL_FLAGS_BITS) == flag) 43 return (0); 44 45 errno = EINVAL; 46 47 return (1); 48 } 49 50 int 51 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 52 { 53 54 if (flagset_d == NULL) { 55 errno = EINVAL; 56 return (-1); 57 } 58 59 if (_flag_is_invalid(flag)) 60 return (-1); 61 62 *flagset_d |= flag; 63 64 return (0); 65 } 66 67 int 68 acl_clear_flags_np(acl_flagset_t flagset_d) 69 { 70 71 if (flagset_d == NULL) { 72 errno = EINVAL; 73 return (-1); 74 } 75 76 *flagset_d = 0; 77 78 return (0); 79 } 80 81 int 82 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 83 { 84 85 if (flagset_d == NULL) { 86 errno = EINVAL; 87 return (-1); 88 } 89 90 if (_flag_is_invalid(flag)) 91 return (-1); 92 93 *flagset_d &= ~flag; 94 95 return (0); 96 } 97 98 int 99 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 100 { 101 102 if (flagset_d == NULL) { 103 errno = EINVAL; 104 return (-1); 105 } 106 107 if (_flag_is_invalid(flag)) 108 return (-1); 109 110 if (*flagset_d & flag) 111 return (1); 112 113 return (0); 114 } 115 116 int 117 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p) 118 { 119 120 if (entry_d == NULL || flagset_p == NULL) { 121 errno = EINVAL; 122 return (-1); 123 } 124 125 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 126 errno = EINVAL; 127 return (-1); 128 } 129 130 *flagset_p = &entry_d->ae_flags; 131 132 return (0); 133 } 134 135 int 136 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d) 137 { 138 139 if (entry_d == NULL) { 140 errno = EINVAL; 141 return (-1); 142 } 143 144 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 145 errno = EINVAL; 146 return (-1); 147 } 148 149 _entry_brand_as(entry_d, ACL_BRAND_NFS4); 150 151 if (_flag_is_invalid(*flagset_d)) 152 return (-1); 153 154 entry_d->ae_flags = *flagset_d; 155 156 return (0); 157 } 158