Add linux-next specific files for 20110831
[linux-2.6/next.git] / include / linux / nfsacl.h
blobfabcb1e5c460f240ff1f9c5e5b1d6d720505d7c5
1 /*
2 * File: linux/nfsacl.h
4 * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
5 */
6 #ifndef __LINUX_NFSACL_H
7 #define __LINUX_NFSACL_H
9 #define NFS_ACL_PROGRAM 100227
11 #define ACLPROC2_GETACL 1
12 #define ACLPROC2_SETACL 2
13 #define ACLPROC2_GETATTR 3
14 #define ACLPROC2_ACCESS 4
16 #define ACLPROC3_GETACL 1
17 #define ACLPROC3_SETACL 2
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
26 /* Flag for Default ACL entries */
27 #define NFS_ACL_DEFAULT 0x1000
29 #ifdef __KERNEL__
31 #include <linux/posix_acl.h>
32 #include <linux/sunrpc/xdr.h>
34 /* Maximum number of ACL entries over NFS */
35 #define NFS_ACL_MAX_ENTRIES 1024
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)
41 #define NFS_ACL_MAX_ENTRIES_INLINE (5)
42 #define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
44 static inline unsigned int
45 nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
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;
54 extern int
55 nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
56 struct posix_acl *acl, int encode_entries, int typeflag);
57 extern int
58 nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
59 struct posix_acl **pacl);
61 #endif /* __KERNEL__ */
62 #endif /* __LINUX_NFSACL_H */