1 /*- 2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * This software was developed by Robert Watson for the TrustedBSD Project. 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 * acl_set_file -- set a file/directory ACL by name 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/types.h> 36 #include "namespace.h" 37 #include <sys/acl.h> 38 #include "un-namespace.h" 39 40 #include <errno.h> 41 #include <stdlib.h> 42 #include <string.h> 43 44 #include "acl_support.h" 45 46 /* 47 * For POSIX.1e-semantic ACLs, do a presort so the kernel doesn't have to 48 * (the POSIX.1e semantic code will reject unsorted ACL submission). If it's 49 * not a semantic that the library knows about, just submit it flat and 50 * assume the caller knows what they're up to. 51 */ 52 int 53 acl_set_file(const char *path_p, acl_type_t type, acl_t acl) 54 { 55 int error; 56 57 if (acl == NULL || path_p == NULL) { 58 errno = EINVAL; 59 return (-1); 60 } 61 type = _acl_type_unold(type); 62 if (_posix1e_acl(acl, type)) { 63 error = _posix1e_acl_sort(acl); 64 if (error) { 65 errno = error; 66 return (-1); 67 } 68 } 69 70 acl->ats_cur_entry = 0; 71 72 return (__acl_set_file(path_p, type, &acl->ats_acl)); 73 } 74 75 int 76 acl_set_link_np(const char *path_p, acl_type_t type, acl_t acl) 77 { 78 int error; 79 80 if (acl == NULL || path_p == NULL) { 81 errno = EINVAL; 82 return (-1); 83 } 84 type = _acl_type_unold(type); 85 if (_posix1e_acl(acl, type)) { 86 error = _posix1e_acl_sort(acl); 87 if (error) { 88 errno = error; 89 return (-1); 90 } 91 } 92 93 acl->ats_cur_entry = 0; 94 95 return (__acl_set_link(path_p, type, &acl->ats_acl)); 96 } 97 98 int 99 acl_set_fd(int fd, acl_t acl) 100 { 101 int error; 102 103 error = _posix1e_acl_sort(acl); 104 if (error) { 105 errno = error; 106 return(-1); 107 } 108 109 acl->ats_cur_entry = 0; 110 111 return (___acl_set_fd(fd, ACL_TYPE_ACCESS, &acl->ats_acl)); 112 } 113 114 int 115 acl_set_fd_np(int fd, acl_t acl, acl_type_t type) 116 { 117 int error; 118 119 type = _acl_type_unold(type); 120 if (_posix1e_acl(acl, type)) { 121 error = _posix1e_acl_sort(acl); 122 if (error) { 123 errno = error; 124 return (-1); 125 } 126 } 127 128 acl->ats_cur_entry = 0; 129 130 return (___acl_set_fd(fd, type, &acl->ats_acl)); 131 } 132 133 /* 134 * acl_set_permset() (23.4.23): sets the permissions of ACL entry entry_d 135 * with the permissions in permset_d 136 */ 137 int 138 acl_set_permset(acl_entry_t entry_d, acl_permset_t permset_d) 139 { 140 141 if (!entry_d) { 142 errno = EINVAL; 143 return (-1); 144 } 145 146 entry_d->ae_perm = *permset_d; 147 148 return (0); 149 } 150 151 /* 152 * acl_set_qualifier() sets the qualifier (ae_id) of the tag for 153 * ACL entry entry_d to the value referred to by tag_qualifier_p 154 */ 155 int 156 acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p) 157 { 158 if (!entry_d || !tag_qualifier_p) { 159 errno = EINVAL; 160 return (-1); 161 } 162 163 switch(entry_d->ae_tag) { 164 case ACL_USER: 165 case ACL_GROUP: 166 entry_d->ae_id = *(uid_t *)tag_qualifier_p; 167 break; 168 default: 169 errno = EINVAL; 170 return (-1); 171 } 172 173 return (0); 174 } 175 176 /* 177 * acl_set_tag_type() sets the tag type for ACL entry entry_d to the 178 * value of tag_type 179 */ 180 int 181 acl_set_tag_type(acl_entry_t entry_d, acl_tag_t tag_type) 182 { 183 184 if (entry_d == NULL) { 185 errno = EINVAL; 186 return (-1); 187 } 188 189 switch(tag_type) { 190 case ACL_USER_OBJ: 191 case ACL_USER: 192 case ACL_GROUP_OBJ: 193 case ACL_GROUP: 194 case ACL_MASK: 195 case ACL_OTHER: 196 entry_d->ae_tag = tag_type; 197 return (0); 198 } 199 200 errno = EINVAL; 201 return (-1); 202 } 203