blob: 8a2a29d35a6fe57598d306b06df5eed01489cc7b [file] [log] [blame]
Dave Kleikampac27a0e2006-10-11 01:20:50 -07001/*
Mingming Cao617ba132006-10-11 01:20:53 -07002 * linux/fs/ext4/acl.c
Dave Kleikampac27a0e2006-10-11 01:20:50 -07003 *
4 * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
5 */
6
7#include <linux/init.h>
8#include <linux/sched.h>
9#include <linux/slab.h>
10#include <linux/capability.h>
11#include <linux/fs.h>
Christoph Hellwig3dcf5452008-04-29 18:13:32 -040012#include "ext4_jbd2.h"
13#include "ext4.h"
Dave Kleikampac27a0e2006-10-11 01:20:50 -070014#include "xattr.h"
15#include "acl.h"
16
17/*
18 * Convert from filesystem to in-memory representation.
19 */
20static struct posix_acl *
Mingming Cao617ba132006-10-11 01:20:53 -070021ext4_acl_from_disk(const void *value, size_t size)
Dave Kleikampac27a0e2006-10-11 01:20:50 -070022{
23 const char *end = (char *)value + size;
24 int n, count;
25 struct posix_acl *acl;
26
27 if (!value)
28 return NULL;
Mingming Cao617ba132006-10-11 01:20:53 -070029 if (size < sizeof(ext4_acl_header))
Dave Kleikampac27a0e2006-10-11 01:20:50 -070030 return ERR_PTR(-EINVAL);
Mingming Cao617ba132006-10-11 01:20:53 -070031 if (((ext4_acl_header *)value)->a_version !=
32 cpu_to_le32(EXT4_ACL_VERSION))
Dave Kleikampac27a0e2006-10-11 01:20:50 -070033 return ERR_PTR(-EINVAL);
Mingming Cao617ba132006-10-11 01:20:53 -070034 value = (char *)value + sizeof(ext4_acl_header);
35 count = ext4_acl_count(size);
Dave Kleikampac27a0e2006-10-11 01:20:50 -070036 if (count < 0)
37 return ERR_PTR(-EINVAL);
38 if (count == 0)
39 return NULL;
Josef Bacik216553c2008-04-29 22:02:02 -040040 acl = posix_acl_alloc(count, GFP_NOFS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -070041 if (!acl)
42 return ERR_PTR(-ENOMEM);
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -040043 for (n = 0; n < count; n++) {
Mingming Cao617ba132006-10-11 01:20:53 -070044 ext4_acl_entry *entry =
45 (ext4_acl_entry *)value;
46 if ((char *)value + sizeof(ext4_acl_entry_short) > end)
Dave Kleikampac27a0e2006-10-11 01:20:50 -070047 goto fail;
48 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
49 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
Dave Kleikampac27a0e2006-10-11 01:20:50 -070050
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -040051 switch (acl->a_entries[n].e_tag) {
52 case ACL_USER_OBJ:
53 case ACL_GROUP_OBJ:
54 case ACL_MASK:
55 case ACL_OTHER:
56 value = (char *)value +
57 sizeof(ext4_acl_entry_short);
58 acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
59 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -070060
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -040061 case ACL_USER:
62 case ACL_GROUP:
63 value = (char *)value + sizeof(ext4_acl_entry);
64 if ((char *)value > end)
Dave Kleikampac27a0e2006-10-11 01:20:50 -070065 goto fail;
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -040066 acl->a_entries[n].e_id =
67 le32_to_cpu(entry->e_id);
68 break;
69
70 default:
71 goto fail;
Dave Kleikampac27a0e2006-10-11 01:20:50 -070072 }
73 }
74 if (value != end)
75 goto fail;
76 return acl;
77
78fail:
79 posix_acl_release(acl);
80 return ERR_PTR(-EINVAL);
81}
82
83/*
84 * Convert from in-memory to filesystem representation.
85 */
86static void *
Mingming Cao617ba132006-10-11 01:20:53 -070087ext4_acl_to_disk(const struct posix_acl *acl, size_t *size)
Dave Kleikampac27a0e2006-10-11 01:20:50 -070088{
Mingming Cao617ba132006-10-11 01:20:53 -070089 ext4_acl_header *ext_acl;
Dave Kleikampac27a0e2006-10-11 01:20:50 -070090 char *e;
91 size_t n;
92
Mingming Cao617ba132006-10-11 01:20:53 -070093 *size = ext4_acl_size(acl->a_count);
94 ext_acl = kmalloc(sizeof(ext4_acl_header) + acl->a_count *
Josef Bacik216553c2008-04-29 22:02:02 -040095 sizeof(ext4_acl_entry), GFP_NOFS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -070096 if (!ext_acl)
97 return ERR_PTR(-ENOMEM);
Mingming Cao617ba132006-10-11 01:20:53 -070098 ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION);
99 e = (char *)ext_acl + sizeof(ext4_acl_header);
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400100 for (n = 0; n < acl->a_count; n++) {
Mingming Cao617ba132006-10-11 01:20:53 -0700101 ext4_acl_entry *entry = (ext4_acl_entry *)e;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700102 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
103 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400104 switch (acl->a_entries[n].e_tag) {
105 case ACL_USER:
106 case ACL_GROUP:
107 entry->e_id = cpu_to_le32(acl->a_entries[n].e_id);
108 e += sizeof(ext4_acl_entry);
109 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700110
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400111 case ACL_USER_OBJ:
112 case ACL_GROUP_OBJ:
113 case ACL_MASK:
114 case ACL_OTHER:
115 e += sizeof(ext4_acl_entry_short);
116 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700117
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400118 default:
119 goto fail;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700120 }
121 }
122 return (char *)ext_acl;
123
124fail:
125 kfree(ext_acl);
126 return ERR_PTR(-EINVAL);
127}
128
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700129/*
130 * Inode operation get_posix_acl().
131 *
132 * inode->i_mutex: don't care
133 */
134static struct posix_acl *
Mingming Cao617ba132006-10-11 01:20:53 -0700135ext4_get_acl(struct inode *inode, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700136{
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700137 int name_index;
138 char *value = NULL;
139 struct posix_acl *acl;
140 int retval;
141
142 if (!test_opt(inode->i_sb, POSIX_ACL))
143 return NULL;
144
Al Viro073aaa12009-06-09 12:11:54 -0400145 acl = get_cached_acl(inode, type);
146 if (acl != ACL_NOT_CACHED)
147 return acl;
148
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400149 switch (type) {
150 case ACL_TYPE_ACCESS:
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400151 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
152 break;
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400153 case ACL_TYPE_DEFAULT:
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400154 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
155 break;
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400156 default:
Al Viro073aaa12009-06-09 12:11:54 -0400157 BUG();
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700158 }
Mingming Cao617ba132006-10-11 01:20:53 -0700159 retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700160 if (retval > 0) {
Josef Bacik216553c2008-04-29 22:02:02 -0400161 value = kmalloc(retval, GFP_NOFS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700162 if (!value)
163 return ERR_PTR(-ENOMEM);
Mingming Cao617ba132006-10-11 01:20:53 -0700164 retval = ext4_xattr_get(inode, name_index, "", value, retval);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700165 }
166 if (retval > 0)
Mingming Cao617ba132006-10-11 01:20:53 -0700167 acl = ext4_acl_from_disk(value, retval);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700168 else if (retval == -ENODATA || retval == -ENOSYS)
169 acl = NULL;
170 else
171 acl = ERR_PTR(retval);
172 kfree(value);
173
Al Viro073aaa12009-06-09 12:11:54 -0400174 if (!IS_ERR(acl))
175 set_cached_acl(inode, type, acl);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700176
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700177 return acl;
178}
179
180/*
181 * Set the access or default ACL of an inode.
182 *
Mingming Cao617ba132006-10-11 01:20:53 -0700183 * inode->i_mutex: down unless called from ext4_new_inode
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700184 */
185static int
Mingming Cao617ba132006-10-11 01:20:53 -0700186ext4_set_acl(handle_t *handle, struct inode *inode, int type,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700187 struct posix_acl *acl)
188{
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700189 int name_index;
190 void *value = NULL;
191 size_t size = 0;
192 int error;
193
194 if (S_ISLNK(inode->i_mode))
195 return -EOPNOTSUPP;
196
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400197 switch (type) {
198 case ACL_TYPE_ACCESS:
199 name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
200 if (acl) {
201 mode_t mode = inode->i_mode;
202 error = posix_acl_equiv_mode(acl, &mode);
203 if (error < 0)
204 return error;
205 else {
206 inode->i_mode = mode;
207 ext4_mark_inode_dirty(handle, inode);
208 if (error == 0)
209 acl = NULL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700210 }
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400211 }
212 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700213
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400214 case ACL_TYPE_DEFAULT:
215 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
216 if (!S_ISDIR(inode->i_mode))
217 return acl ? -EACCES : 0;
218 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700219
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400220 default:
221 return -EINVAL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700222 }
223 if (acl) {
Mingming Cao617ba132006-10-11 01:20:53 -0700224 value = ext4_acl_to_disk(acl, &size);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700225 if (IS_ERR(value))
226 return (int)PTR_ERR(value);
227 }
228
Mingming Cao617ba132006-10-11 01:20:53 -0700229 error = ext4_xattr_set_handle(handle, inode, name_index, "",
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700230 value, size, 0);
231
232 kfree(value);
Al Viro073aaa12009-06-09 12:11:54 -0400233 if (!error)
234 set_cached_acl(inode, type, acl);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700235
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700236 return error;
237}
238
Linus Torvalds1d5ccd12009-08-28 12:12:24 -0700239int
Mingming Cao617ba132006-10-11 01:20:53 -0700240ext4_check_acl(struct inode *inode, int mask)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700241{
Mingming Cao617ba132006-10-11 01:20:53 -0700242 struct posix_acl *acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700243
244 if (IS_ERR(acl))
245 return PTR_ERR(acl);
246 if (acl) {
247 int error = posix_acl_permission(inode, acl, mask);
248 posix_acl_release(acl);
249 return error;
250 }
251
252 return -EAGAIN;
253}
254
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700255/*
Mingming Cao617ba132006-10-11 01:20:53 -0700256 * Initialize the ACLs of a new inode. Called from ext4_new_inode.
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700257 *
258 * dir->i_mutex: down
259 * inode->i_mutex: up (access to inode is still exclusive)
260 */
261int
Mingming Cao617ba132006-10-11 01:20:53 -0700262ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700263{
264 struct posix_acl *acl = NULL;
265 int error = 0;
266
267 if (!S_ISLNK(inode->i_mode)) {
268 if (test_opt(dir->i_sb, POSIX_ACL)) {
Mingming Cao617ba132006-10-11 01:20:53 -0700269 acl = ext4_get_acl(dir, ACL_TYPE_DEFAULT);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700270 if (IS_ERR(acl))
271 return PTR_ERR(acl);
272 }
273 if (!acl)
Al Viroce3b0f82009-03-29 19:08:22 -0400274 inode->i_mode &= ~current_umask();
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700275 }
276 if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
277 struct posix_acl *clone;
278 mode_t mode;
279
280 if (S_ISDIR(inode->i_mode)) {
Mingming Cao617ba132006-10-11 01:20:53 -0700281 error = ext4_set_acl(handle, inode,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700282 ACL_TYPE_DEFAULT, acl);
283 if (error)
284 goto cleanup;
285 }
Josef Bacik216553c2008-04-29 22:02:02 -0400286 clone = posix_acl_clone(acl, GFP_NOFS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700287 error = -ENOMEM;
288 if (!clone)
289 goto cleanup;
290
291 mode = inode->i_mode;
292 error = posix_acl_create_masq(clone, &mode);
293 if (error >= 0) {
294 inode->i_mode = mode;
295 if (error > 0) {
296 /* This is an extended ACL */
Mingming Cao617ba132006-10-11 01:20:53 -0700297 error = ext4_set_acl(handle, inode,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700298 ACL_TYPE_ACCESS, clone);
299 }
300 }
301 posix_acl_release(clone);
302 }
303cleanup:
304 posix_acl_release(acl);
305 return error;
306}
307
308/*
309 * Does chmod for an inode that may have an Access Control List. The
310 * inode->i_mode field must be updated to the desired value by the caller
311 * before calling this function.
312 * Returns 0 on success, or a negative error number.
313 *
314 * We change the ACL rather than storing some ACL entries in the file
315 * mode permission bits (which would be more efficient), because that
316 * would break once additional permissions (like ACL_APPEND, ACL_DELETE
317 * for directories) are added. There are no more bits available in the
318 * file mode.
319 *
320 * inode->i_mutex: down
321 */
322int
Mingming Cao617ba132006-10-11 01:20:53 -0700323ext4_acl_chmod(struct inode *inode)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700324{
325 struct posix_acl *acl, *clone;
Andrew Morton63f57932006-10-11 01:21:24 -0700326 int error;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700327
328 if (S_ISLNK(inode->i_mode))
329 return -EOPNOTSUPP;
330 if (!test_opt(inode->i_sb, POSIX_ACL))
331 return 0;
Mingming Cao617ba132006-10-11 01:20:53 -0700332 acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700333 if (IS_ERR(acl) || !acl)
334 return PTR_ERR(acl);
335 clone = posix_acl_clone(acl, GFP_KERNEL);
336 posix_acl_release(acl);
337 if (!clone)
338 return -ENOMEM;
339 error = posix_acl_chmod_masq(clone, inode->i_mode);
340 if (!error) {
341 handle_t *handle;
342 int retries = 0;
343
344 retry:
Mingming Cao617ba132006-10-11 01:20:53 -0700345 handle = ext4_journal_start(inode,
346 EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700347 if (IS_ERR(handle)) {
348 error = PTR_ERR(handle);
Mingming Cao617ba132006-10-11 01:20:53 -0700349 ext4_std_error(inode->i_sb, error);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700350 goto out;
351 }
Mingming Cao617ba132006-10-11 01:20:53 -0700352 error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
353 ext4_journal_stop(handle);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700354 if (error == -ENOSPC &&
Mingming Cao617ba132006-10-11 01:20:53 -0700355 ext4_should_retry_alloc(inode->i_sb, &retries))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700356 goto retry;
357 }
358out:
359 posix_acl_release(clone);
360 return error;
361}
362
363/*
364 * Extended attribute handlers
365 */
366static size_t
Christoph Hellwig431547b2009-11-13 09:52:56 +0000367ext4_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_len,
368 const char *name, size_t name_len, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700369{
370 const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
371
Christoph Hellwig431547b2009-11-13 09:52:56 +0000372 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700373 return 0;
374 if (list && size <= list_len)
375 memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
376 return size;
377}
378
379static size_t
Christoph Hellwig431547b2009-11-13 09:52:56 +0000380ext4_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_len,
381 const char *name, size_t name_len, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700382{
383 const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
384
Christoph Hellwig431547b2009-11-13 09:52:56 +0000385 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700386 return 0;
387 if (list && size <= list_len)
388 memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
389 return size;
390}
391
392static int
Christoph Hellwig431547b2009-11-13 09:52:56 +0000393ext4_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
394 size_t size, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700395{
396 struct posix_acl *acl;
397 int error;
398
Christoph Hellwig431547b2009-11-13 09:52:56 +0000399 if (strcmp(name, "") != 0)
400 return -EINVAL;
401 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700402 return -EOPNOTSUPP;
403
Christoph Hellwig431547b2009-11-13 09:52:56 +0000404 acl = ext4_get_acl(dentry->d_inode, type);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700405 if (IS_ERR(acl))
406 return PTR_ERR(acl);
407 if (acl == NULL)
408 return -ENODATA;
409 error = posix_acl_to_xattr(acl, buffer, size);
410 posix_acl_release(acl);
411
412 return error;
413}
414
415static int
Christoph Hellwig431547b2009-11-13 09:52:56 +0000416ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
417 size_t size, int flags, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700418{
Christoph Hellwig431547b2009-11-13 09:52:56 +0000419 struct inode *inode = dentry->d_inode;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700420 handle_t *handle;
421 struct posix_acl *acl;
422 int error, retries = 0;
423
Christoph Hellwig431547b2009-11-13 09:52:56 +0000424 if (strcmp(name, "") != 0)
425 return -EINVAL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700426 if (!test_opt(inode->i_sb, POSIX_ACL))
427 return -EOPNOTSUPP;
Satyam Sharma3bd858a2007-07-17 15:00:08 +0530428 if (!is_owner_or_cap(inode))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700429 return -EPERM;
430
431 if (value) {
432 acl = posix_acl_from_xattr(value, size);
433 if (IS_ERR(acl))
434 return PTR_ERR(acl);
435 else if (acl) {
436 error = posix_acl_valid(acl);
437 if (error)
438 goto release_and_out;
439 }
440 } else
441 acl = NULL;
442
443retry:
Mingming Cao617ba132006-10-11 01:20:53 -0700444 handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700445 if (IS_ERR(handle))
446 return PTR_ERR(handle);
Mingming Cao617ba132006-10-11 01:20:53 -0700447 error = ext4_set_acl(handle, inode, type, acl);
448 ext4_journal_stop(handle);
449 if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700450 goto retry;
451
452release_and_out:
453 posix_acl_release(acl);
454 return error;
455}
456
Mingming Cao617ba132006-10-11 01:20:53 -0700457struct xattr_handler ext4_xattr_acl_access_handler = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700458 .prefix = POSIX_ACL_XATTR_ACCESS,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000459 .flags = ACL_TYPE_ACCESS,
Mingming Cao617ba132006-10-11 01:20:53 -0700460 .list = ext4_xattr_list_acl_access,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000461 .get = ext4_xattr_get_acl,
462 .set = ext4_xattr_set_acl,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700463};
464
Mingming Cao617ba132006-10-11 01:20:53 -0700465struct xattr_handler ext4_xattr_acl_default_handler = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700466 .prefix = POSIX_ACL_XATTR_DEFAULT,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000467 .flags = ACL_TYPE_DEFAULT,
Mingming Cao617ba132006-10-11 01:20:53 -0700468 .list = ext4_xattr_list_acl_default,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000469 .get = ext4_xattr_get_acl,
470 .set = ext4_xattr_set_acl,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700471};