1/*
2 * JFFS2 -- Journalling Flash File System, Version 2.
3 *
4 * Copyright © 2006 NEC Corporation
5 *
6 * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
7 *
8 * For licensing information, see the file 'LICENCE' in this directory.
9 *
10 */
11
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
19static int jffs2_trusted_getxattr(const struct xattr_handler *handler,
20 struct dentry *unused, struct inode *inode,
21 const char *name, void *buffer, size_t size)
22{
23 return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED,
24 xname: name, buffer, size);
25}
26
27static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
28 struct mnt_idmap *idmap,
29 struct dentry *unused, struct inode *inode,
30 const char *name, const void *buffer,
31 size_t size, int flags)
32{
33 return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED,
34 xname: name, buffer, size, flags);
35}
36
37static bool jffs2_trusted_listxattr(struct dentry *dentry)
38{
39 return capable(CAP_SYS_ADMIN);
40}
41
42const struct xattr_handler jffs2_trusted_xattr_handler = {
43 .prefix = XATTR_TRUSTED_PREFIX,
44 .list = jffs2_trusted_listxattr,
45 .set = jffs2_trusted_setxattr,
46 .get = jffs2_trusted_getxattr
47};
48

source code of linux/fs/jffs2/xattr_trusted.c