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1 | /* | |
2 | * JFFS2 -- Journalling Flash File System, Version 2. | |
3 | * | |
4 | * Copyright © 2006 NEC Corporation | |
5 | * | |
6 | * Created by KaiGai Kohei <kaigai@ak.jp.nec.com> | |
7 | * | |
8 | * For licensing information, see the file 'LICENCE' in this directory. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/jffs2.h> | |
15 | #include <linux/xattr.h> | |
16 | #include <linux/mtd/mtd.h> | |
17 | #include "nodelist.h" | |
18 | ||
19 | static int jffs2_user_getxattr(struct dentry *dentry, const char *name, | |
20 | void *buffer, size_t size, int type) | |
21 | { | |
22 | if (!strcmp(name, "")) | |
23 | return -EINVAL; | |
24 | return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_USER, | |
25 | name, buffer, size); | |
26 | } | |
27 | ||
28 | static int jffs2_user_setxattr(struct dentry *dentry, const char *name, | |
29 | const void *buffer, size_t size, int flags, int type) | |
30 | { | |
31 | if (!strcmp(name, "")) | |
32 | return -EINVAL; | |
33 | return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_USER, | |
34 | name, buffer, size, flags); | |
35 | } | |
36 | ||
37 | static size_t jffs2_user_listxattr(struct dentry *dentry, char *list, | |
38 | size_t list_size, const char *name, size_t name_len, int type) | |
39 | { | |
40 | size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1; | |
41 | ||
42 | if (list && retlen <= list_size) { | |
43 | strcpy(list, XATTR_USER_PREFIX); | |
44 | strcpy(list + XATTR_USER_PREFIX_LEN, name); | |
45 | } | |
46 | ||
47 | return retlen; | |
48 | } | |
49 | ||
50 | const struct xattr_handler jffs2_user_xattr_handler = { | |
51 | .prefix = XATTR_USER_PREFIX, | |
52 | .list = jffs2_user_listxattr, | |
53 | .set = jffs2_user_setxattr, | |
54 | .get = jffs2_user_getxattr | |
55 | }; |