blob: 7a1f9b93a45fdca4259784dd5875f2f20abff43e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
File: linux/xattr_acl.h
(extended attribute representation of access control lists)
(C) 2000 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#ifndef _LINUX_XATTR_ACL_H
#define _LINUX_XATTR_ACL_H
#include <linux/posix_acl.h>
#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
#define XATTR_ACL_VERSION 0x0002
typedef struct {
__u16 e_tag;
__u16 e_perm;
__u32 e_id;
} xattr_acl_entry;
typedef struct {
__u32 a_version;
xattr_acl_entry a_entries[0];
} xattr_acl_header;
static inline size_t xattr_acl_size(int count)
{
return sizeof(xattr_acl_header) + count * sizeof(xattr_acl_entry);
}
static inline int xattr_acl_count(size_t size)
{
if (size < sizeof(xattr_acl_header))
return -1;
size -= sizeof(xattr_acl_header);
if (size % sizeof(xattr_acl_entry))
return -1;
return size / sizeof(xattr_acl_entry);
}
struct posix_acl * posix_acl_from_xattr(const void *value, size_t size);
int posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size);
#endif /* _LINUX_XATTR_ACL_H */
|
