1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * File: linux/nfsacl.h
 4 *
 5 * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
 6 */
 7#ifndef __LINUX_NFSACL_H
 8#define __LINUX_NFSACL_H
 9
10
11#include <linux/posix_acl.h>
12#include <linux/sunrpc/xdr.h>
13#include <uapi/linux/nfsacl.h>
14
15/* Maximum number of ACL entries over NFS */
16#define NFS_ACL_MAX_ENTRIES	1024
17
18#define NFSACL_MAXWORDS		(2*(2+3*NFS_ACL_MAX_ENTRIES))
19#define NFSACL_MAXPAGES		((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
20				 >> PAGE_SHIFT)
21
22#define NFS_ACL_MAX_ENTRIES_INLINE	(5)
23#define NFS_ACL_INLINE_BUFSIZE	((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
24
25static inline unsigned int
26nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
27{
28	unsigned int w = 16;
29	w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
30	if (acl_default)
31		w += max((int)acl_default->a_count, 4) * 12;
32	return w;
33}
34
35extern int
36nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
37	      struct posix_acl *acl, int encode_entries, int typeflag);
38extern int
39nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
40	      struct posix_acl **pacl);
41extern bool
42nfs_stream_decode_acl(struct xdr_stream *xdr, unsigned int *aclcnt,
43		      struct posix_acl **pacl);
44extern bool
45nfs_stream_encode_acl(struct xdr_stream *xdr, struct inode *inode,
46		      struct posix_acl *acl, int encode_entries, int typeflag);
47
48#endif  /* __LINUX_NFSACL_H */

 
 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
10#include <linux/posix_acl.h>
11#include <linux/sunrpc/xdr.h>
12#include <uapi/linux/nfsacl.h>
13
14/* Maximum number of ACL entries over NFS */
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  /* __LINUX_NFSACL_H */