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 if (_posix1e_acl(acl, type)) { 62 error = _posix1e_acl_sort(acl); 63 if (error) { 64 errno = error; 65 return (-1); 66 } 67 } 68 69 acl->ats_cur_entry = 0; 70 71 return (__acl_set_file(path_p, type, &acl->ats_acl)); 72 } 73 74 int 75 acl_set_link_np(const char *path_p, acl_type_t type, acl_t acl) 76 { 77 int error; 78 79 if (acl == NULL || path_p == NULL) { 80 errno = EINVAL; 81 return (-1); 82 } 83 if (_posix1e_acl(acl, type)) { 84 error = _posix1e_acl_sort(acl); 85 if (error) { 86 errno = error; 87 return (-1); 88 } 89 } 90 91 acl->ats_cur_entry = 0; 92 93 return (__acl_set_link(path_p, type, &acl->ats_acl)); 94 } 95 96 int 97 acl_set_fd(int fd, acl_t acl) 98 { 99 int error; 100 101 error = _posix1e_acl_sort(acl); 102 if (error) { 103 errno = error; 104 return(-1); 105 } 106 107 acl->ats_cur_entry = 0; 108 109 return (___acl_set_fd(fd, ACL_TYPE_ACCESS, &acl->ats_acl)); 110 } 111 112 int 113 acl_set_fd_np(int fd, acl_t acl, acl_type_t type) 114 { 115 int error; 116 117 if (_posix1e_acl(acl, type)) { 118 error = _posix1e_acl_sort(acl); 119 if (error) { 120 errno = error; 121 return (-1); 122 } 123 } 124 125 acl->ats_cur_entry = 0; 126 127 return (___acl_set_fd(fd, type, &acl->ats_acl)); 128 } 129 130 /* 131 * acl_set_permset() (23.4.23): sets the permissions of ACL entry entry_d 132 * with the permissions in permset_d 133 */ 134 int 135 acl_set_permset(acl_entry_t entry_d, acl_permset_t permset_d) 136 { 137 138 if (!entry_d) { 139 errno = EINVAL; 140 return (-1); 141 } 142 143 entry_d->ae_perm = *permset_d; 144 145 return (0); 146 } 147 148 /* 149 * acl_set_qualifier() sets the qualifier (ae_id) of the tag for 150 * ACL entry entry_d to the value referred to by tag_qualifier_p 151 */ 152 int 153 acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p) 154 { 155 if (!entry_d || !tag_qualifier_p) { 156 errno = EINVAL; 157 return (-1); 158 } 159 160 switch(entry_d->ae_tag) { 161 case ACL_USER: 162 case ACL_GROUP: 163 entry_d->ae_id = *(uid_t *)tag_qualifier_p; 164 break; 165 default: 166 errno = EINVAL; 167 return (-1); 168 } 169 170 return (0); 171 } 172 173 /* 174 * acl_set_tag_type() sets the tag type for ACL entry entry_d to the 175 * value of tag_type 176 */ 177 int 178 acl_set_tag_type(acl_entry_t entry_d, acl_tag_t tag_type) 179 { 180 181 if (entry_d == NULL) { 182 errno = EINVAL; 183 return (-1); 184 } 185 186 switch(tag_type) { 187 case ACL_USER_OBJ: 188 case ACL_USER: 189 case ACL_GROUP_OBJ: 190 case ACL_GROUP: 191 case ACL_MASK: 192 case ACL_OTHER: 193 entry_d->ae_tag = tag_type; 194 return (0); 195 } 196 197 errno = EINVAL; 198 return (-1); 199 } 200