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 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 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 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 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 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 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 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