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 #if 0 31 __FBSDID("$FreeBSD: head/lib/libc/posix1e/acl_flag.c 326193 2017-11-25 17:12:48Z pfg $"); 32 #else 33 __RCSID("$NetBSD: acl_flag.c,v 1.1 2020/05/16 18:31:47 christos Exp $"); 34 #endif 35 36 #include <stdio.h> 37 #include <errno.h> 38 #include <sys/acl.h> 39 40 #include "acl_support.h" 41 42 static int 43 _flag_is_invalid(acl_flag_t flag) 44 { 45 46 if ((flag & ACL_FLAGS_BITS) == flag) 47 return (0); 48 49 errno = EINVAL; 50 51 return (1); 52 } 53 54 int 55 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 56 { 57 58 if (flagset_d == NULL) { 59 errno = EINVAL; 60 return (-1); 61 } 62 63 if (_flag_is_invalid(flag)) 64 return (-1); 65 66 *flagset_d |= flag; 67 68 return (0); 69 } 70 71 int 72 acl_clear_flags_np(acl_flagset_t flagset_d) 73 { 74 75 if (flagset_d == NULL) { 76 errno = EINVAL; 77 return (-1); 78 } 79 80 *flagset_d = 0; 81 82 return (0); 83 } 84 85 int 86 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 87 { 88 89 if (flagset_d == NULL) { 90 errno = EINVAL; 91 return (-1); 92 } 93 94 if (_flag_is_invalid(flag)) 95 return (-1); 96 97 *flagset_d &= ~flag; 98 99 return (0); 100 } 101 102 int 103 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 104 { 105 106 if (flagset_d == NULL) { 107 errno = EINVAL; 108 return (-1); 109 } 110 111 if (_flag_is_invalid(flag)) 112 return (-1); 113 114 if (*flagset_d & flag) 115 return (1); 116 117 return (0); 118 } 119 120 int 121 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p) 122 { 123 124 if (entry_d == NULL || flagset_p == NULL) { 125 errno = EINVAL; 126 return (-1); 127 } 128 129 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 130 errno = EINVAL; 131 return (-1); 132 } 133 134 *flagset_p = &entry_d->ae_flags; 135 136 return (0); 137 } 138 139 int 140 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d) 141 { 142 143 if (entry_d == NULL) { 144 errno = EINVAL; 145 return (-1); 146 } 147 148 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 149 errno = EINVAL; 150 return (-1); 151 } 152 153 _entry_brand_as(entry_d, ACL_BRAND_NFS4); 154 155 if (_flag_is_invalid(*flagset_d)) 156 return (-1); 157 158 entry_d->ae_flags = *flagset_d; 159 160 return (0); 161 } 162