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Commit | Line | Data |
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1da177e4 LT |
1 | #include <linux/reiserfs_fs.h> |
2 | #include <linux/errno.h> | |
3 | #include <linux/fs.h> | |
4 | #include <linux/pagemap.h> | |
5 | #include <linux/xattr.h> | |
6 | #include <linux/reiserfs_xattr.h> | |
7 | #include <asm/uaccess.h> | |
8 | ||
1da177e4 | 9 | static int |
bd4c625c | 10 | security_get(struct inode *inode, const char *name, void *buffer, size_t size) |
1da177e4 | 11 | { |
bd4c625c LT |
12 | if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) |
13 | return -EINVAL; | |
1da177e4 | 14 | |
6dfede69 | 15 | if (IS_PRIVATE(inode)) |
bd4c625c | 16 | return -EPERM; |
1da177e4 | 17 | |
bd4c625c | 18 | return reiserfs_xattr_get(inode, name, buffer, size); |
1da177e4 LT |
19 | } |
20 | ||
21 | static int | |
bd4c625c LT |
22 | security_set(struct inode *inode, const char *name, const void *buffer, |
23 | size_t size, int flags) | |
1da177e4 | 24 | { |
bd4c625c LT |
25 | if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) |
26 | return -EINVAL; | |
1da177e4 | 27 | |
6dfede69 | 28 | if (IS_PRIVATE(inode)) |
bd4c625c | 29 | return -EPERM; |
1da177e4 | 30 | |
bd4c625c | 31 | return reiserfs_xattr_set(inode, name, buffer, size, flags); |
1da177e4 LT |
32 | } |
33 | ||
48b32a35 JM |
34 | static size_t security_list(struct inode *inode, char *list, size_t list_len, |
35 | const char *name, size_t namelen) | |
1da177e4 | 36 | { |
48b32a35 | 37 | const size_t len = namelen + 1; |
1da177e4 | 38 | |
6dfede69 | 39 | if (IS_PRIVATE(inode)) |
bd4c625c | 40 | return 0; |
1da177e4 | 41 | |
48b32a35 JM |
42 | if (list && len <= list_len) { |
43 | memcpy(list, name, namelen); | |
44 | list[namelen] = '\0'; | |
45 | } | |
1da177e4 | 46 | |
bd4c625c | 47 | return len; |
1da177e4 LT |
48 | } |
49 | ||
48b32a35 | 50 | struct xattr_handler reiserfs_xattr_security_handler = { |
1da177e4 LT |
51 | .prefix = XATTR_SECURITY_PREFIX, |
52 | .get = security_get, | |
53 | .set = security_set, | |
1da177e4 LT |
54 | .list = security_list, |
55 | }; |