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652ecc20 KK |
1 | /* |
2 | * JFFS2 -- Journalling Flash File System, Version 2. | |
aa98d7cf | 3 | * |
c00c310e | 4 | * Copyright © 2006 NEC Corporation |
aa98d7cf | 5 | * |
652ecc20 KK |
6 | * Created by KaiGai Kohei <kaigai@ak.jp.nec.com> |
7 | * | |
8 | * For licensing information, see the file 'LICENCE' in this directory. | |
9 | * | |
10 | */ | |
c00c310e | 11 | |
aa98d7cf KK |
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_trusted_getxattr(struct inode *inode, const char *name, | |
20 | void *buffer, size_t size) | |
21 | { | |
22 | if (!strcmp(name, "")) | |
23 | return -EINVAL; | |
24 | return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size); | |
25 | } | |
26 | ||
27 | static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer, | |
28 | size_t size, int flags) | |
29 | { | |
30 | if (!strcmp(name, "")) | |
31 | return -EINVAL; | |
32 | return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags); | |
33 | } | |
34 | ||
35 | static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size, | |
36 | const char *name, size_t name_len) | |
37 | { | |
38 | size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1; | |
39 | ||
40 | if (list && retlen<=list_size) { | |
41 | strcpy(list, XATTR_TRUSTED_PREFIX); | |
42 | strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name); | |
43 | } | |
44 | ||
45 | return retlen; | |
46 | } | |
47 | ||
48 | struct xattr_handler jffs2_trusted_xattr_handler = { | |
49 | .prefix = XATTR_TRUSTED_PREFIX, | |
50 | .list = jffs2_trusted_listxattr, | |
51 | .set = jffs2_trusted_setxattr, | |
52 | .get = jffs2_trusted_getxattr | |
53 | }; |