1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * JFFS2 -- Journalling Flash File System, Version 2.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright © 2006 NEC Corporation
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * For licensing information, see the file 'LICENCE' in this directory.
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kernel.h>
13*4882a593Smuzhiyun #include <linux/fs.h>
14*4882a593Smuzhiyun #include <linux/jffs2.h>
15*4882a593Smuzhiyun #include <linux/xattr.h>
16*4882a593Smuzhiyun #include <linux/mtd/mtd.h>
17*4882a593Smuzhiyun #include "nodelist.h"
18*4882a593Smuzhiyun
jffs2_trusted_getxattr(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,void * buffer,size_t size,int flags)19*4882a593Smuzhiyun static int jffs2_trusted_getxattr(const struct xattr_handler *handler,
20*4882a593Smuzhiyun struct dentry *unused, struct inode *inode,
21*4882a593Smuzhiyun const char *name, void *buffer, size_t size,
22*4882a593Smuzhiyun int flags)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED,
25*4882a593Smuzhiyun name, buffer, size);
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
jffs2_trusted_setxattr(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,const void * buffer,size_t size,int flags)28*4882a593Smuzhiyun static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
29*4882a593Smuzhiyun struct dentry *unused, struct inode *inode,
30*4882a593Smuzhiyun const char *name, const void *buffer,
31*4882a593Smuzhiyun size_t size, int flags)
32*4882a593Smuzhiyun {
33*4882a593Smuzhiyun return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED,
34*4882a593Smuzhiyun name, buffer, size, flags);
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
jffs2_trusted_listxattr(struct dentry * dentry)37*4882a593Smuzhiyun static bool jffs2_trusted_listxattr(struct dentry *dentry)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun return capable(CAP_SYS_ADMIN);
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun const struct xattr_handler jffs2_trusted_xattr_handler = {
43*4882a593Smuzhiyun .prefix = XATTR_TRUSTED_PREFIX,
44*4882a593Smuzhiyun .list = jffs2_trusted_listxattr,
45*4882a593Smuzhiyun .set = jffs2_trusted_setxattr,
46*4882a593Smuzhiyun .get = jffs2_trusted_getxattr
47*4882a593Smuzhiyun };
48