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