1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * linux/fs/ext2/xattr_trusted.c
4 * Handler for trusted extended attributes.
5 *
6 * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
7 */
8
9 #include "ext2.h"
10 #include "xattr.h"
11
12 static bool
ext2_xattr_trusted_list(struct dentry * dentry)13 ext2_xattr_trusted_list(struct dentry *dentry)
14 {
15 return capable(CAP_SYS_ADMIN);
16 }
17
18 static int
ext2_xattr_trusted_get(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,void * buffer,size_t size)19 ext2_xattr_trusted_get(const struct xattr_handler *handler,
20 struct dentry *unused, struct inode *inode,
21 const char *name, void *buffer, size_t size)
22 {
23 return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
24 buffer, size);
25 }
26
27 static int
ext2_xattr_trusted_set(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,const void * value,size_t size,int flags)28 ext2_xattr_trusted_set(const struct xattr_handler *handler,
29 struct dentry *unused, struct inode *inode,
30 const char *name, const void *value,
31 size_t size, int flags)
32 {
33 return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
34 value, size, flags);
35 }
36
37 const struct xattr_handler ext2_xattr_trusted_handler = {
38 .prefix = XATTR_TRUSTED_PREFIX,
39 .list = ext2_xattr_trusted_list,
40 .get = ext2_xattr_trusted_get,
41 .set = ext2_xattr_trusted_set,
42 };
43