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linux
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
33/* Maximum number of ACL entries over NFS */
34#define NFS_ACL_MAX_ENTRIES 1024
35
36#define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
37#define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
38 >> PAGE_SHIFT)
39
40static inline unsigned int
41nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
42{
43 unsigned int w = 16;
44 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
45 if (acl_default)
46 w += max((int)acl_default->a_count, 4) * 12;
47 return w;
48}
49
50extern unsigned int
51nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
52 struct posix_acl *acl, int encode_entries, int typeflag);
53extern unsigned int
54nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
55 struct posix_acl **pacl);
56
57#endif /* __KERNEL__ */
58#endif /* __LINUX_NFSACL_H */