1// SPDX-License-Identifier: GPL-2.0
 2#include "reiserfs.h"
 3#include <linux/capability.h>
 4#include <linux/errno.h>
 5#include <linux/fs.h>
 6#include <linux/pagemap.h>
 7#include <linux/xattr.h>
 8#include "xattr.h"
 9#include <linux/uaccess.h>
10
11static int
12trusted_get(const struct xattr_handler *handler, struct dentry *unused,
13	    struct inode *inode, const char *name, void *buffer, size_t size)
14{
15	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
16		return -EPERM;
17
18	return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
19				  buffer, size);
20}
21
22static int
23trusted_set(const struct xattr_handler *handler, struct dentry *unused,
 
24	    struct inode *inode, const char *name, const void *buffer,
25	    size_t size, int flags)
26{
27	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
28		return -EPERM;
29
30	return reiserfs_xattr_set(inode,
31				  xattr_full_name(handler, name),
32				  buffer, size, flags);
33}
34
35static bool trusted_list(struct dentry *dentry)
36{
37	return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry));
38}
39
40const struct xattr_handler reiserfs_xattr_trusted_handler = {
41	.prefix = XATTR_TRUSTED_PREFIX,
42	.get = trusted_get,
43	.set = trusted_set,
44	.list = trusted_list,
45};

 1// SPDX-License-Identifier: GPL-2.0
 2#include "reiserfs.h"
 3#include <linux/capability.h>
 4#include <linux/errno.h>
 5#include <linux/fs.h>
 6#include <linux/pagemap.h>
 7#include <linux/xattr.h>
 8#include "xattr.h"
 9#include <linux/uaccess.h>
10
11static int
12trusted_get(const struct xattr_handler *handler, struct dentry *unused,
13	    struct inode *inode, const char *name, void *buffer, size_t size)
14{
15	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
16		return -EPERM;
17
18	return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
19				  buffer, size);
20}
21
22static int
23trusted_set(const struct xattr_handler *handler,
24	    struct user_namespace *mnt_userns, struct dentry *unused,
25	    struct inode *inode, const char *name, const void *buffer,
26	    size_t size, int flags)
27{
28	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
29		return -EPERM;
30
31	return reiserfs_xattr_set(inode,
32				  xattr_full_name(handler, name),
33				  buffer, size, flags);
34}
35
36static bool trusted_list(struct dentry *dentry)
37{
38	return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry));
39}
40
41const struct xattr_handler reiserfs_xattr_trusted_handler = {
42	.prefix = XATTR_TRUSTED_PREFIX,
43	.get = trusted_get,
44	.set = trusted_set,
45	.list = trusted_list,
46};