blob: 5e2ed4504eadd85401d9f86d5e3784ecd2e2e7c1 [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;
Jan Karac6ac12a2010-06-15 12:19:59 -0400207 inode->i_ctime = ext4_current_time(inode);
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400208 ext4_mark_inode_dirty(handle, inode);
209 if (error == 0)
210 acl = NULL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700211 }
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400212 }
213 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700214
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400215 case ACL_TYPE_DEFAULT:
216 name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
217 if (!S_ISDIR(inode->i_mode))
218 return acl ? -EACCES : 0;
219 break;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700220
Theodore Ts'o2b2d6d02008-07-26 16:15:44 -0400221 default:
222 return -EINVAL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700223 }
224 if (acl) {
Mingming Cao617ba132006-10-11 01:20:53 -0700225 value = ext4_acl_to_disk(acl, &size);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700226 if (IS_ERR(value))
227 return (int)PTR_ERR(value);
228 }
229
Mingming Cao617ba132006-10-11 01:20:53 -0700230 error = ext4_xattr_set_handle(handle, inode, name_index, "",
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700231 value, size, 0);
232
233 kfree(value);
Al Viro073aaa12009-06-09 12:11:54 -0400234 if (!error)
235 set_cached_acl(inode, type, acl);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700236
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700237 return error;
238}
239
Linus Torvalds1d5ccd12009-08-28 12:12:24 -0700240int
Mingming Cao617ba132006-10-11 01:20:53 -0700241ext4_check_acl(struct inode *inode, int mask)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700242{
Mingming Cao617ba132006-10-11 01:20:53 -0700243 struct posix_acl *acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700244
245 if (IS_ERR(acl))
246 return PTR_ERR(acl);
247 if (acl) {
248 int error = posix_acl_permission(inode, acl, mask);
249 posix_acl_release(acl);
250 return error;
251 }
252
253 return -EAGAIN;
254}
255
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700256/*
Mingming Cao617ba132006-10-11 01:20:53 -0700257 * Initialize the ACLs of a new inode. Called from ext4_new_inode.
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700258 *
259 * dir->i_mutex: down
260 * inode->i_mutex: up (access to inode is still exclusive)
261 */
262int
Mingming Cao617ba132006-10-11 01:20:53 -0700263ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700264{
265 struct posix_acl *acl = NULL;
266 int error = 0;
267
268 if (!S_ISLNK(inode->i_mode)) {
269 if (test_opt(dir->i_sb, POSIX_ACL)) {
Mingming Cao617ba132006-10-11 01:20:53 -0700270 acl = ext4_get_acl(dir, ACL_TYPE_DEFAULT);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700271 if (IS_ERR(acl))
272 return PTR_ERR(acl);
273 }
274 if (!acl)
Al Viroce3b0f82009-03-29 19:08:22 -0400275 inode->i_mode &= ~current_umask();
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700276 }
277 if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
278 struct posix_acl *clone;
279 mode_t mode;
280
281 if (S_ISDIR(inode->i_mode)) {
Mingming Cao617ba132006-10-11 01:20:53 -0700282 error = ext4_set_acl(handle, inode,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700283 ACL_TYPE_DEFAULT, acl);
284 if (error)
285 goto cleanup;
286 }
Josef Bacik216553c2008-04-29 22:02:02 -0400287 clone = posix_acl_clone(acl, GFP_NOFS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700288 error = -ENOMEM;
289 if (!clone)
290 goto cleanup;
291
292 mode = inode->i_mode;
293 error = posix_acl_create_masq(clone, &mode);
294 if (error >= 0) {
295 inode->i_mode = mode;
296 if (error > 0) {
297 /* This is an extended ACL */
Mingming Cao617ba132006-10-11 01:20:53 -0700298 error = ext4_set_acl(handle, inode,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700299 ACL_TYPE_ACCESS, clone);
300 }
301 }
302 posix_acl_release(clone);
303 }
304cleanup:
305 posix_acl_release(acl);
306 return error;
307}
308
309/*
310 * Does chmod for an inode that may have an Access Control List. The
311 * inode->i_mode field must be updated to the desired value by the caller
312 * before calling this function.
313 * Returns 0 on success, or a negative error number.
314 *
315 * We change the ACL rather than storing some ACL entries in the file
316 * mode permission bits (which would be more efficient), because that
317 * would break once additional permissions (like ACL_APPEND, ACL_DELETE
318 * for directories) are added. There are no more bits available in the
319 * file mode.
320 *
321 * inode->i_mutex: down
322 */
323int
Mingming Cao617ba132006-10-11 01:20:53 -0700324ext4_acl_chmod(struct inode *inode)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700325{
326 struct posix_acl *acl, *clone;
Andrew Morton63f57932006-10-11 01:21:24 -0700327 int error;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700328
329 if (S_ISLNK(inode->i_mode))
330 return -EOPNOTSUPP;
331 if (!test_opt(inode->i_sb, POSIX_ACL))
332 return 0;
Mingming Cao617ba132006-10-11 01:20:53 -0700333 acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700334 if (IS_ERR(acl) || !acl)
335 return PTR_ERR(acl);
336 clone = posix_acl_clone(acl, GFP_KERNEL);
337 posix_acl_release(acl);
338 if (!clone)
339 return -ENOMEM;
340 error = posix_acl_chmod_masq(clone, inode->i_mode);
341 if (!error) {
342 handle_t *handle;
343 int retries = 0;
344
345 retry:
Mingming Cao617ba132006-10-11 01:20:53 -0700346 handle = ext4_journal_start(inode,
347 EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700348 if (IS_ERR(handle)) {
349 error = PTR_ERR(handle);
Mingming Cao617ba132006-10-11 01:20:53 -0700350 ext4_std_error(inode->i_sb, error);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700351 goto out;
352 }
Mingming Cao617ba132006-10-11 01:20:53 -0700353 error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
354 ext4_journal_stop(handle);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700355 if (error == -ENOSPC &&
Mingming Cao617ba132006-10-11 01:20:53 -0700356 ext4_should_retry_alloc(inode->i_sb, &retries))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700357 goto retry;
358 }
359out:
360 posix_acl_release(clone);
361 return error;
362}
363
364/*
365 * Extended attribute handlers
366 */
367static size_t
Christoph Hellwig431547b2009-11-13 09:52:56 +0000368ext4_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_len,
369 const char *name, size_t name_len, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700370{
371 const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
372
Christoph Hellwig431547b2009-11-13 09:52:56 +0000373 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700374 return 0;
375 if (list && size <= list_len)
376 memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
377 return size;
378}
379
380static size_t
Christoph Hellwig431547b2009-11-13 09:52:56 +0000381ext4_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_len,
382 const char *name, size_t name_len, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700383{
384 const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
385
Christoph Hellwig431547b2009-11-13 09:52:56 +0000386 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700387 return 0;
388 if (list && size <= list_len)
389 memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
390 return size;
391}
392
393static int
Christoph Hellwig431547b2009-11-13 09:52:56 +0000394ext4_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer,
395 size_t size, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700396{
397 struct posix_acl *acl;
398 int error;
399
Christoph Hellwig431547b2009-11-13 09:52:56 +0000400 if (strcmp(name, "") != 0)
401 return -EINVAL;
402 if (!test_opt(dentry->d_sb, POSIX_ACL))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700403 return -EOPNOTSUPP;
404
Christoph Hellwig431547b2009-11-13 09:52:56 +0000405 acl = ext4_get_acl(dentry->d_inode, type);
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700406 if (IS_ERR(acl))
407 return PTR_ERR(acl);
408 if (acl == NULL)
409 return -ENODATA;
410 error = posix_acl_to_xattr(acl, buffer, size);
411 posix_acl_release(acl);
412
413 return error;
414}
415
416static int
Christoph Hellwig431547b2009-11-13 09:52:56 +0000417ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
418 size_t size, int flags, int type)
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700419{
Christoph Hellwig431547b2009-11-13 09:52:56 +0000420 struct inode *inode = dentry->d_inode;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700421 handle_t *handle;
422 struct posix_acl *acl;
423 int error, retries = 0;
424
Christoph Hellwig431547b2009-11-13 09:52:56 +0000425 if (strcmp(name, "") != 0)
426 return -EINVAL;
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700427 if (!test_opt(inode->i_sb, POSIX_ACL))
428 return -EOPNOTSUPP;
Satyam Sharma3bd858a2007-07-17 15:00:08 +0530429 if (!is_owner_or_cap(inode))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700430 return -EPERM;
431
432 if (value) {
433 acl = posix_acl_from_xattr(value, size);
434 if (IS_ERR(acl))
435 return PTR_ERR(acl);
436 else if (acl) {
437 error = posix_acl_valid(acl);
438 if (error)
439 goto release_and_out;
440 }
441 } else
442 acl = NULL;
443
444retry:
Mingming Cao617ba132006-10-11 01:20:53 -0700445 handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700446 if (IS_ERR(handle))
447 return PTR_ERR(handle);
Mingming Cao617ba132006-10-11 01:20:53 -0700448 error = ext4_set_acl(handle, inode, type, acl);
449 ext4_journal_stop(handle);
450 if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700451 goto retry;
452
453release_and_out:
454 posix_acl_release(acl);
455 return error;
456}
457
Stephen Hemminger11e27522010-05-13 17:53:18 -0700458const struct xattr_handler ext4_xattr_acl_access_handler = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700459 .prefix = POSIX_ACL_XATTR_ACCESS,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000460 .flags = ACL_TYPE_ACCESS,
Mingming Cao617ba132006-10-11 01:20:53 -0700461 .list = ext4_xattr_list_acl_access,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000462 .get = ext4_xattr_get_acl,
463 .set = ext4_xattr_set_acl,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700464};
465
Stephen Hemminger11e27522010-05-13 17:53:18 -0700466const struct xattr_handler ext4_xattr_acl_default_handler = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700467 .prefix = POSIX_ACL_XATTR_DEFAULT,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000468 .flags = ACL_TYPE_DEFAULT,
Mingming Cao617ba132006-10-11 01:20:53 -0700469 .list = ext4_xattr_list_acl_default,
Christoph Hellwig431547b2009-11-13 09:52:56 +0000470 .get = ext4_xattr_get_acl,
471 .set = ext4_xattr_set_acl,
Dave Kleikampac27a0e2006-10-11 01:20:50 -0700472};