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| // SPDX-License-Identifier: GPL-2.0
| #include "reiserfs.h"
| #include <linux/capability.h>
| #include <linux/errno.h>
| #include <linux/fs.h>
| #include <linux/pagemap.h>
| #include <linux/xattr.h>
| #include "xattr.h"
| #include <linux/uaccess.h>
|
| static int
| trusted_get(const struct xattr_handler *handler, struct dentry *unused,
| struct inode *inode, const char *name, void *buffer, size_t size,
| int flags)
| {
| if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
| return -EPERM;
|
| return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
| buffer, size);
| }
|
| static int
| trusted_set(const struct xattr_handler *handler, struct dentry *unused,
| struct inode *inode, const char *name, const void *buffer,
| size_t size, int flags)
| {
| if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
| return -EPERM;
|
| return reiserfs_xattr_set(inode,
| xattr_full_name(handler, name),
| buffer, size, flags);
| }
|
| static bool trusted_list(struct dentry *dentry)
| {
| return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry));
| }
|
| const struct xattr_handler reiserfs_xattr_trusted_handler = {
| .prefix = XATTR_TRUSTED_PREFIX,
| .get = trusted_get,
| .set = trusted_set,
| .list = trusted_list,
| };
|
|
