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(struct dentry *dentry, const char *name,
20		void *buffer, size_t size, int type)
 
21{
22	if (!strcmp(name, ""))
23		return -EINVAL;
24	return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED,
25				 name, buffer, size);
26}
27
28static int jffs2_trusted_setxattr(struct dentry *dentry, const char *name,
29		const void *buffer, size_t size, int flags, int type)
 
 
30{
31	if (!strcmp(name, ""))
32		return -EINVAL;
33	return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED,
34				 name, buffer, size, flags);
35}
36
37static size_t jffs2_trusted_listxattr(struct dentry *dentry, char *list,
38		size_t list_size, const char *name, size_t name_len, int type)
39{
40	size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
41
42	if (list && retlen<=list_size) {
43		strcpy(list, XATTR_TRUSTED_PREFIX);
44		strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
45	}
46
47	return retlen;
48}
49
50const struct xattr_handler jffs2_trusted_xattr_handler = {
51	.prefix = XATTR_TRUSTED_PREFIX,
52	.list = jffs2_trusted_listxattr,
53	.set = jffs2_trusted_setxattr,
54	.get = jffs2_trusted_getxattr
55};

 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				 name, buffer, size);
25}
26
27static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
28				  struct dentry *unused, struct inode *inode,
29				  const char *name, const void *buffer,
30				  size_t size, int flags)
31{
32	return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED,
 
 
33				 name, buffer, size, flags);
34}
35
36static bool jffs2_trusted_listxattr(struct dentry *dentry)
 
37{
38	return capable(CAP_SYS_ADMIN);
 
 
 
 
 
 
 
39}
40
41const struct xattr_handler jffs2_trusted_xattr_handler = {
42	.prefix = XATTR_TRUSTED_PREFIX,
43	.list = jffs2_trusted_listxattr,
44	.set = jffs2_trusted_setxattr,
45	.get = jffs2_trusted_getxattr
46};