2 * Copyright (c) 2003-2010 Tim Kientzle
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "archive_platform.h"
28 __FBSDID("$FreeBSD: head/lib/libarchive/archive_write_disk.c 201159 2009-12-29 05:35:40Z kientzle $");
30 #ifdef HAVE_SYS_TYPES_H
31 #include <sys/types.h>
34 #define _ACL_PRIVATE /* For debugging */
42 #include "archive_entry.h"
43 #include "archive_acl_private.h"
44 #include "archive_write_disk_private.h"
46 #if !defined(HAVE_POSIX_ACL) || !defined(ACL_TYPE_NFS4)
47 /* Default empty function body to satisfy mainline code. */
49 archive_write_disk_set_acls(struct archive *a, int fd, const char *name,
50 struct archive_acl *abstract_acl)
53 (void)fd; /* UNUSED */
54 (void)name; /* UNUSED */
55 (void)abstract_acl; /* UNUSED */
61 static int set_acl(struct archive *, int fd, const char *,
63 acl_type_t, int archive_entry_acl_type, const char *tn);
66 * XXX TODO: What about ACL types other than ACCESS and DEFAULT?
69 archive_write_disk_set_acls(struct archive *a, int fd, const char *name,
70 struct archive_acl *abstract_acl)
74 if (archive_acl_count(abstract_acl, ARCHIVE_ENTRY_ACL_TYPE_POSIX1E) > 0) {
75 ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_ACCESS,
76 ARCHIVE_ENTRY_ACL_TYPE_ACCESS, "access");
77 if (ret != ARCHIVE_OK)
79 ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_DEFAULT,
80 ARCHIVE_ENTRY_ACL_TYPE_DEFAULT, "default");
82 } else if (archive_acl_count(abstract_acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4) > 0) {
83 ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_NFS4,
84 ARCHIVE_ENTRY_ACL_TYPE_NFS4, "nfs4");
94 {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE},
95 {ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE},
96 {ARCHIVE_ENTRY_ACL_READ, ACL_READ},
97 {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA},
98 {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY},
99 {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA},
100 {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE},
101 {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA},
102 {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY},
103 {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS},
104 {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS},
105 {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD},
106 {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES},
107 {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES},
108 {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE},
109 {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL},
110 {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL},
111 {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER},
112 {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE}
117 int platform_inherit;
118 } acl_inherit_map[] = {
119 {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT},
120 {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT},
121 {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_NO_PROPAGATE_INHERIT},
122 {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY}
126 set_acl(struct archive *a, int fd, const char *name,
127 struct archive_acl *abstract_acl,
128 acl_type_t acl_type, int ae_requested_type, const char *tname)
131 acl_entry_t acl_entry;
132 acl_permset_t acl_permset;
133 acl_flagset_t acl_flagset;
136 int ae_type, ae_permset, ae_tag, ae_id;
144 entries = archive_acl_reset(abstract_acl, ae_requested_type);
147 acl = acl_init(entries);
148 if (acl == (acl_t)NULL) {
149 archive_set_error(a, errno,
150 "Failed to initialize ACL working storage");
151 return (ARCHIVE_FAILED);
153 while (archive_acl_next(a, abstract_acl, ae_requested_type, &ae_type,
154 &ae_permset, &ae_tag, &ae_id, &ae_name) == ARCHIVE_OK) {
155 if (acl_create_entry(&acl, &acl_entry) != 0) {
156 archive_set_error(a, errno,
157 "Failed to create a new ACL entry");
158 ret = ARCHIVE_FAILED;
163 case ARCHIVE_ENTRY_ACL_USER:
164 acl_set_tag_type(acl_entry, ACL_USER);
165 ae_uid = archive_write_disk_uid(a, ae_name, ae_id);
166 acl_set_qualifier(acl_entry, &ae_uid);
168 case ARCHIVE_ENTRY_ACL_GROUP:
169 acl_set_tag_type(acl_entry, ACL_GROUP);
170 ae_gid = archive_write_disk_gid(a, ae_name, ae_id);
171 acl_set_qualifier(acl_entry, &ae_gid);
173 case ARCHIVE_ENTRY_ACL_USER_OBJ:
174 acl_set_tag_type(acl_entry, ACL_USER_OBJ);
176 case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
177 acl_set_tag_type(acl_entry, ACL_GROUP_OBJ);
179 case ARCHIVE_ENTRY_ACL_MASK:
180 acl_set_tag_type(acl_entry, ACL_MASK);
182 case ARCHIVE_ENTRY_ACL_OTHER:
183 acl_set_tag_type(acl_entry, ACL_OTHER);
185 case ARCHIVE_ENTRY_ACL_EVERYONE:
186 acl_set_tag_type(acl_entry, ACL_EVERYONE);
189 archive_set_error(a, ARCHIVE_ERRNO_MISC,
191 ret = ARCHIVE_FAILED;
197 case ARCHIVE_ENTRY_ACL_TYPE_ALLOW:
198 r = acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_ALLOW);
200 case ARCHIVE_ENTRY_ACL_TYPE_DENY:
201 r = acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_DENY);
203 case ARCHIVE_ENTRY_ACL_TYPE_AUDIT:
204 r = acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_AUDIT);
206 case ARCHIVE_ENTRY_ACL_TYPE_ALARM:
207 r = acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_ALARM);
209 case ARCHIVE_ENTRY_ACL_TYPE_ACCESS:
210 case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT:
211 // These don't translate directly into the system ACL.
214 archive_set_error(a, ARCHIVE_ERRNO_MISC,
215 "Unknown ACL entry type");
216 ret = ARCHIVE_FAILED;
220 archive_set_error(a, errno,
221 "Failed to set ACL entry type");
222 ret = ARCHIVE_FAILED;
226 if (acl_get_permset(acl_entry, &acl_permset) != 0) {
227 archive_set_error(a, errno,
228 "Failed to get ACL permission set");
229 ret = ARCHIVE_FAILED;
232 if (acl_clear_perms(acl_permset) != 0) {
233 archive_set_error(a, errno,
234 "Failed to clear ACL permissions");
235 ret = ARCHIVE_FAILED;
239 for (i = 0; i < (int)(sizeof(acl_perm_map) / sizeof(acl_perm_map[0])); ++i) {
240 if (ae_permset & acl_perm_map[i].archive_perm)
241 if (acl_add_perm(acl_permset,
242 acl_perm_map[i].platform_perm) != 0) {
243 archive_set_error(a, errno,
244 "Failed to add ACL permission");
245 ret = ARCHIVE_FAILED;
250 acl_get_flagset_np(acl_entry, &acl_flagset);
251 if (acl_type == ACL_TYPE_NFS4) {
253 * acl_get_flagset_np() fails with non-NFSv4 ACLs
255 if (acl_get_flagset_np(acl_entry, &acl_flagset) != 0) {
256 archive_set_error(a, errno,
257 "Failed to get flagset from an NFSv4 ACL entry");
258 ret = ARCHIVE_FAILED;
261 if (acl_clear_flags_np(acl_flagset) != 0) {
262 archive_set_error(a, errno,
263 "Failed to clear flags from an NFSv4 ACL flagset");
264 ret = ARCHIVE_FAILED;
267 for (i = 0; i < (int)(sizeof(acl_inherit_map) / sizeof(acl_inherit_map[0])); ++i) {
268 if (ae_permset & acl_inherit_map[i].archive_inherit) {
269 if (acl_add_flag_np(acl_flagset,
270 acl_inherit_map[i].platform_inherit) != 0) {
271 archive_set_error(a, errno,
272 "Failed to add flag to NFSv4 ACL flagset");
273 ret = ARCHIVE_FAILED;
281 /* Try restoring the ACL through 'fd' if we can. */
283 if (fd >= 0 && acl_type == ACL_TYPE_ACCESS && acl_set_fd(fd, acl) == 0)
287 #if HAVE_ACL_SET_FD_NP
288 if (fd >= 0 && acl_set_fd_np(fd, acl, acl_type) == 0)
293 #if HAVE_ACL_SET_LINK_NP
294 if (acl_set_link_np(name, acl_type, acl) != 0) {
295 archive_set_error(a, errno, "Failed to set %s acl", tname);
299 /* TODO: Skip this if 'name' is a symlink. */
300 if (acl_set_file(name, acl_type, acl) != 0) {
301 archive_set_error(a, errno, "Failed to set %s acl", tname);