Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
ac27a0ec | 2 | /* |
617ba13b | 3 | * linux/fs/ext4/xattr_trusted.c |
ac27a0ec DK |
4 | * Handler for trusted extended attributes. |
5 | * | |
6 | * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org> | |
7 | */ | |
8 | ||
ac27a0ec DK |
9 | #include <linux/string.h> |
10 | #include <linux/capability.h> | |
11 | #include <linux/fs.h> | |
3dcf5451 CH |
12 | #include "ext4_jbd2.h" |
13 | #include "ext4.h" | |
ac27a0ec DK |
14 | #include "xattr.h" |
15 | ||
764a5c6b AG |
16 | static bool |
17 | ext4_xattr_trusted_list(struct dentry *dentry) | |
ac27a0ec | 18 | { |
764a5c6b | 19 | return capable(CAP_SYS_ADMIN); |
ac27a0ec DK |
20 | } |
21 | ||
22 | static int | |
d9a82a04 | 23 | ext4_xattr_trusted_get(const struct xattr_handler *handler, |
b296821a AV |
24 | struct dentry *unused, struct inode *inode, |
25 | const char *name, void *buffer, size_t size) | |
ac27a0ec | 26 | { |
b296821a | 27 | return ext4_xattr_get(inode, EXT4_XATTR_INDEX_TRUSTED, |
431547b3 | 28 | name, buffer, size); |
ac27a0ec DK |
29 | } |
30 | ||
31 | static int | |
d9a82a04 | 32 | ext4_xattr_trusted_set(const struct xattr_handler *handler, |
e65ce2a5 | 33 | struct user_namespace *mnt_userns, |
59301226 AV |
34 | struct dentry *unused, struct inode *inode, |
35 | const char *name, const void *value, | |
36 | size_t size, int flags) | |
ac27a0ec | 37 | { |
59301226 | 38 | return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED, |
431547b3 | 39 | name, value, size, flags); |
ac27a0ec DK |
40 | } |
41 | ||
11e27528 | 42 | const struct xattr_handler ext4_xattr_trusted_handler = { |
ac27a0ec | 43 | .prefix = XATTR_TRUSTED_PREFIX, |
617ba13b MC |
44 | .list = ext4_xattr_trusted_list, |
45 | .get = ext4_xattr_trusted_get, | |
46 | .set = ext4_xattr_trusted_set, | |
ac27a0ec | 47 | }; |