aboutsummaryrefslogtreecommitdiff
path: root/include/linux/nfsacl.h
blob: 92c79c0e7abb9e328b848659225bcd5b4d6805ff (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
51
52
53
54
#ifndef __LINUX_NFSACL_H
#define __LINUX_NFSACL_H

#define NFS_ACL_PROGRAM	100227

#define ACLPROC2_GETACL		1
#define ACLPROC2_SETACL		2
#define ACLPROC2_GETATTR	3
#define ACLPROC2_ACCESS		4

#define ACLPROC3_GETACL		1
#define ACLPROC3_SETACL		2


#define NFS_ACL			0x0001
#define NFS_ACLCNT		0x0002
#define NFS_DFACL		0x0004
#define NFS_DFACLCNT		0x0008

#define NFS_ACL_DEFAULT		0x1000

#ifdef __KERNEL__

#include <linux/posix_acl.h>
#include <linux/sunrpc/xdr.h>

#define NFS_ACL_MAX_ENTRIES	1024

#define NFSACL_MAXWORDS		(2*(2+3*NFS_ACL_MAX_ENTRIES))
#define NFSACL_MAXPAGES		((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
				 >> PAGE_SHIFT)

#define NFS_ACL_MAX_ENTRIES_INLINE	(5)
#define NFS_ACL_INLINE_BUFSIZE	((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)

static inline unsigned int
nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
{
	unsigned int w = 16;
	w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
	if (acl_default)
		w += max((int)acl_default->a_count, 4) * 12;
	return w;
}

extern int
nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
	      struct posix_acl *acl, int encode_entries, int typeflag);
extern int
nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
	      struct posix_acl **pacl);

#endif 
#endif