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1/*
2 * File: linux/nfsacl.h
3 *
4 * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
5 */
6#ifndef __LINUX_NFSACL_H
7#define __LINUX_NFSACL_H
8
9#define NFS_ACL_PROGRAM 100227
10
11#define ACLPROC2_GETACL 1
12#define ACLPROC2_SETACL 2
13#define ACLPROC2_GETATTR 3
14#define ACLPROC2_ACCESS 4
15
16#define ACLPROC3_GETACL 1
17#define ACLPROC3_SETACL 2
18
19
20/* Flags for the getacl/setacl mode */
21#define NFS_ACL 0x0001
22#define NFS_ACLCNT 0x0002
23#define NFS_DFACL 0x0004
24#define NFS_DFACLCNT 0x0008
25
26/* Flag for Default ACL entries */
27#define NFS_ACL_DEFAULT 0x1000
28
29#ifdef __KERNEL__
30
31#include <linux/posix_acl.h>
32#include <linux/sunrpc/xdr.h>
33
34/* Maximum number of ACL entries over NFS */
35#define NFS_ACL_MAX_ENTRIES 1024
36
37#define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
38#define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
39 >> PAGE_SHIFT)
40
41#define NFS_ACL_MAX_ENTRIES_INLINE (5)
42#define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
43
44static inline unsigned int
45nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
46{
47 unsigned int w = 16;
48 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
49 if (acl_default)
50 w += max((int)acl_default->a_count, 4) * 12;
51 return w;
52}
53
54extern int
55nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
56 struct posix_acl *acl, int encode_entries, int typeflag);
57extern int
58nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
59 struct posix_acl **pacl);
60
61#endif /* __KERNEL__ */
62#endif /* __LINUX_NFSACL_H */