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 <stdio.h> 29 #include <errno.h> 30 #include <sys/acl.h> 31 32 #include "acl_support.h" 33 34 static int 35 _flag_is_invalid(acl_flag_t flag) 36 { 37 38 if ((flag & ACL_FLAGS_BITS) == flag) 39 return (0); 40 41 errno = EINVAL; 42 43 return (1); 44 } 45 46 int 47 acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 48 { 49 50 if (flagset_d == NULL) { 51 errno = EINVAL; 52 return (-1); 53 } 54 55 if (_flag_is_invalid(flag)) 56 return (-1); 57 58 *flagset_d |= flag; 59 60 return (0); 61 } 62 63 int 64 acl_clear_flags_np(acl_flagset_t flagset_d) 65 { 66 67 if (flagset_d == NULL) { 68 errno = EINVAL; 69 return (-1); 70 } 71 72 *flagset_d = 0; 73 74 return (0); 75 } 76 77 int 78 acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 79 { 80 81 if (flagset_d == NULL) { 82 errno = EINVAL; 83 return (-1); 84 } 85 86 if (_flag_is_invalid(flag)) 87 return (-1); 88 89 *flagset_d &= ~flag; 90 91 return (0); 92 } 93 94 int 95 acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag) 96 { 97 98 if (flagset_d == NULL) { 99 errno = EINVAL; 100 return (-1); 101 } 102 103 if (_flag_is_invalid(flag)) 104 return (-1); 105 106 if (*flagset_d & flag) 107 return (1); 108 109 return (0); 110 } 111 112 int 113 acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p) 114 { 115 116 if (entry_d == NULL || flagset_p == NULL) { 117 errno = EINVAL; 118 return (-1); 119 } 120 121 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 122 errno = EINVAL; 123 return (-1); 124 } 125 126 *flagset_p = &entry_d->ae_flags; 127 128 return (0); 129 } 130 131 int 132 acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d) 133 { 134 135 if (entry_d == NULL) { 136 errno = EINVAL; 137 return (-1); 138 } 139 140 if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) { 141 errno = EINVAL; 142 return (-1); 143 } 144 145 _entry_brand_as(entry_d, ACL_BRAND_NFS4); 146 147 if (_flag_is_invalid(*flagset_d)) 148 return (-1); 149 150 entry_d->ae_flags = *flagset_d; 151 152 return (0); 153 } 154