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