Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/ext2/xattr_security.c | |
3 | * Handler for storing security labels as extended attributes. | |
4 | */ | |
5 | ||
f7699f2b | 6 | #include "ext2.h" |
10f47e6a | 7 | #include <linux/security.h> |
1da177e4 LT |
8 | #include "xattr.h" |
9 | ||
1da177e4 | 10 | static int |
d9a82a04 AG |
11 | ext2_xattr_security_get(const struct xattr_handler *handler, |
12 | struct dentry *dentry, const char *name, | |
13 | void *buffer, size_t size) | |
1da177e4 | 14 | { |
2b0143b5 | 15 | return ext2_xattr_get(d_inode(dentry), EXT2_XATTR_INDEX_SECURITY, name, |
1da177e4 LT |
16 | buffer, size); |
17 | } | |
18 | ||
19 | static int | |
d9a82a04 AG |
20 | ext2_xattr_security_set(const struct xattr_handler *handler, |
21 | struct dentry *dentry, const char *name, | |
22 | const void *value, size_t size, int flags) | |
1da177e4 | 23 | { |
2b0143b5 | 24 | return ext2_xattr_set(d_inode(dentry), EXT2_XATTR_INDEX_SECURITY, name, |
1da177e4 LT |
25 | value, size, flags); |
26 | } | |
27 | ||
17cd48e4 RK |
28 | static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array, |
29 | void *fs_info) | |
10f47e6a | 30 | { |
9d8f13ba MZ |
31 | const struct xattr *xattr; |
32 | int err = 0; | |
10f47e6a | 33 | |
9d8f13ba MZ |
34 | for (xattr = xattr_array; xattr->name != NULL; xattr++) { |
35 | err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, | |
36 | xattr->name, xattr->value, | |
37 | xattr->value_len, 0); | |
38 | if (err < 0) | |
39 | break; | |
10f47e6a | 40 | } |
10f47e6a SS |
41 | return err; |
42 | } | |
43 | ||
9d8f13ba MZ |
44 | int |
45 | ext2_init_security(struct inode *inode, struct inode *dir, | |
46 | const struct qstr *qstr) | |
47 | { | |
48 | return security_inode_init_security(inode, dir, qstr, | |
49 | &ext2_initxattrs, NULL); | |
50 | } | |
51 | ||
749c72ef | 52 | const struct xattr_handler ext2_xattr_security_handler = { |
1da177e4 | 53 | .prefix = XATTR_SECURITY_PREFIX, |
1da177e4 LT |
54 | .get = ext2_xattr_security_get, |
55 | .set = ext2_xattr_security_set, | |
56 | }; |