Commit | Line | Data |
---|---|---|
b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * linux/fs/ext2/xattr_security.c | |
4 | * Handler for storing security labels as extended attributes. | |
5 | */ | |
6 | ||
f7699f2b | 7 | #include "ext2.h" |
10f47e6a | 8 | #include <linux/security.h> |
1da177e4 LT |
9 | #include "xattr.h" |
10 | ||
1da177e4 | 11 | static int |
d9a82a04 | 12 | ext2_xattr_security_get(const struct xattr_handler *handler, |
b296821a AV |
13 | struct dentry *unused, struct inode *inode, |
14 | const char *name, void *buffer, size_t size) | |
1da177e4 | 15 | { |
b296821a | 16 | return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name, |
1da177e4 LT |
17 | buffer, size); |
18 | } | |
19 | ||
20 | static int | |
d9a82a04 | 21 | ext2_xattr_security_set(const struct xattr_handler *handler, |
39f60c1c | 22 | struct mnt_idmap *idmap, |
59301226 AV |
23 | struct dentry *unused, struct inode *inode, |
24 | const char *name, const void *value, | |
25 | size_t size, int flags) | |
1da177e4 | 26 | { |
59301226 | 27 | return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name, |
1da177e4 LT |
28 | value, size, flags); |
29 | } | |
30 | ||
17cd48e4 RK |
31 | static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array, |
32 | void *fs_info) | |
10f47e6a | 33 | { |
9d8f13ba MZ |
34 | const struct xattr *xattr; |
35 | int err = 0; | |
10f47e6a | 36 | |
9d8f13ba MZ |
37 | for (xattr = xattr_array; xattr->name != NULL; xattr++) { |
38 | err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, | |
39 | xattr->name, xattr->value, | |
40 | xattr->value_len, 0); | |
41 | if (err < 0) | |
42 | break; | |
10f47e6a | 43 | } |
10f47e6a SS |
44 | return err; |
45 | } | |
46 | ||
9d8f13ba MZ |
47 | int |
48 | ext2_init_security(struct inode *inode, struct inode *dir, | |
49 | const struct qstr *qstr) | |
50 | { | |
51 | return security_inode_init_security(inode, dir, qstr, | |
52 | &ext2_initxattrs, NULL); | |
53 | } | |
54 | ||
749c72ef | 55 | const struct xattr_handler ext2_xattr_security_handler = { |
1da177e4 | 56 | .prefix = XATTR_SECURITY_PREFIX, |
1da177e4 LT |
57 | .get = ext2_xattr_security_get, |
58 | .set = ext2_xattr_security_set, | |
59 | }; |