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6#ifndef __LINUX_NFSACL_H
7#define __LINUX_NFSACL_H
8
9
10#include <linux/posix_acl.h>
11#include <linux/sunrpc/xdr.h>
12#include <uapi/linux/nfsacl.h>
13
14
15#define NFS_ACL_MAX_ENTRIES 1024
16
17#define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
18#define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
19 >> PAGE_SHIFT)
20
21#define NFS_ACL_MAX_ENTRIES_INLINE (5)
22#define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
23
24static inline unsigned int
25nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
26{
27 unsigned int w = 16;
28 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
29 if (acl_default)
30 w += max((int)acl_default->a_count, 4) * 12;
31 return w;
32}
33
34extern int
35nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
36 struct posix_acl *acl, int encode_entries, int typeflag);
37extern int
38nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
39 struct posix_acl **pacl);
40
41#endif
42