This source file includes following definitions.
- trusted_get
- trusted_set
- trusted_list
1
2 #include "reiserfs.h"
3 #include <linux/capability.h>
4 #include <linux/errno.h>
5 #include <linux/fs.h>
6 #include <linux/pagemap.h>
7 #include <linux/xattr.h>
8 #include "xattr.h"
9 #include <linux/uaccess.h>
10
11 static int
12 trusted_get(const struct xattr_handler *handler, struct dentry *unused,
13 struct inode *inode, const char *name, void *buffer, size_t size)
14 {
15 if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
16 return -EPERM;
17
18 return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
19 buffer, size);
20 }
21
22 static int
23 trusted_set(const struct xattr_handler *handler, struct dentry *unused,
24 struct inode *inode, const char *name, const void *buffer,
25 size_t size, int flags)
26 {
27 if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
28 return -EPERM;
29
30 return reiserfs_xattr_set(inode,
31 xattr_full_name(handler, name),
32 buffer, size, flags);
33 }
34
35 static bool trusted_list(struct dentry *dentry)
36 {
37 return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry));
38 }
39
40 const struct xattr_handler reiserfs_xattr_trusted_handler = {
41 .prefix = XATTR_TRUSTED_PREFIX,
42 .get = trusted_get,
43 .set = trusted_set,
44 .list = trusted_list,
45 };