xref: /linux/fs/ext2/xattr_trusted.c (revision b6ebbac51bedf9e98e837688bc838f400196da5e)
1 /*
2  * linux/fs/ext2/xattr_trusted.c
3  * Handler for trusted extended attributes.
4  *
5  * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
6  */
7 
8 #include "ext2.h"
9 #include "xattr.h"
10 
11 static bool
12 ext2_xattr_trusted_list(struct dentry *dentry)
13 {
14 	return capable(CAP_SYS_ADMIN);
15 }
16 
17 static int
18 ext2_xattr_trusted_get(const struct xattr_handler *handler,
19 		       struct dentry *unused, struct inode *inode,
20 		       const char *name, void *buffer, size_t size)
21 {
22 	return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
23 			      buffer, size);
24 }
25 
26 static int
27 ext2_xattr_trusted_set(const struct xattr_handler *handler,
28 		       struct dentry *unused, struct inode *inode,
29 		       const char *name, const void *value,
30 		       size_t size, int flags)
31 {
32 	return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
33 			      value, size, flags);
34 }
35 
36 const struct xattr_handler ext2_xattr_trusted_handler = {
37 	.prefix	= XATTR_TRUSTED_PREFIX,
38 	.list	= ext2_xattr_trusted_list,
39 	.get	= ext2_xattr_trusted_get,
40 	.set	= ext2_xattr_trusted_set,
41 };
42