48 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * linux/fs/ext4/xattr_trusted.c4 * Handler for trusted extended attributes.5 *6 * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>7 */8 9#include <linux/string.h>10#include <linux/capability.h>11#include <linux/fs.h>12#include "ext4_jbd2.h"13#include "ext4.h"14#include "xattr.h"15 16static bool17ext4_xattr_trusted_list(struct dentry *dentry)18{19 return capable(CAP_SYS_ADMIN);20}21 22static int23ext4_xattr_trusted_get(const struct xattr_handler *handler,24 struct dentry *unused, struct inode *inode,25 const char *name, void *buffer, size_t size)26{27 return ext4_xattr_get(inode, EXT4_XATTR_INDEX_TRUSTED,28 name, buffer, size);29}30 31static int32ext4_xattr_trusted_set(const struct xattr_handler *handler,33 struct mnt_idmap *idmap,34 struct dentry *unused, struct inode *inode,35 const char *name, const void *value,36 size_t size, int flags)37{38 return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED,39 name, value, size, flags);40}41 42const struct xattr_handler ext4_xattr_trusted_handler = {43 .prefix = XATTR_TRUSTED_PREFIX,44 .list = ext4_xattr_trusted_list,45 .get = ext4_xattr_trusted_get,46 .set = ext4_xattr_trusted_set,47};48