1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * File: linux/nfsacl.h 3 * File: linux/nfsacl.h
4 * 4 *
5 * (C) 2003 Andreas Gruenbacher <agruen@suse.d 5 * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
6 */ 6 */
7 #ifndef __LINUX_NFSACL_H 7 #ifndef __LINUX_NFSACL_H
8 #define __LINUX_NFSACL_H 8 #define __LINUX_NFSACL_H
9 9
10 10
11 #include <linux/posix_acl.h> 11 #include <linux/posix_acl.h>
12 #include <linux/sunrpc/xdr.h> 12 #include <linux/sunrpc/xdr.h>
13 #include <uapi/linux/nfsacl.h> 13 #include <uapi/linux/nfsacl.h>
14 14
15 /* Maximum number of ACL entries over NFS */ 15 /* Maximum number of ACL entries over NFS */
16 #define NFS_ACL_MAX_ENTRIES 1024 16 #define NFS_ACL_MAX_ENTRIES 1024
17 17
18 #define NFSACL_MAXWORDS (2*(2+3*NFS_AC 18 #define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
19 #define NFSACL_MAXPAGES ((2*(8+12*NFS_ 19 #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
20 >> PAGE_SHIFT 20 >> PAGE_SHIFT)
21 21
22 #define NFS_ACL_MAX_ENTRIES_INLINE (5) 22 #define NFS_ACL_MAX_ENTRIES_INLINE (5)
23 #define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_A 23 #define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
24 24
25 static inline unsigned int 25 static inline unsigned int
26 nfsacl_size(struct posix_acl *acl_access, stru 26 nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
27 { 27 {
28 unsigned int w = 16; 28 unsigned int w = 16;
29 w += max(acl_access ? (int)acl_access- 29 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
30 if (acl_default) 30 if (acl_default)
31 w += max((int)acl_default->a_c 31 w += max((int)acl_default->a_count, 4) * 12;
32 return w; 32 return w;
33 } 33 }
34 34
35 extern int 35 extern int
36 nfsacl_encode(struct xdr_buf *buf, unsigned in 36 nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
37 struct posix_acl *acl, int encod 37 struct posix_acl *acl, int encode_entries, int typeflag);
38 extern int 38 extern int
39 nfsacl_decode(struct xdr_buf *buf, unsigned in 39 nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
40 struct posix_acl **pacl); 40 struct posix_acl **pacl);
41 extern bool <<
42 nfs_stream_decode_acl(struct xdr_stream *xdr, <<
43 struct posix_acl **pacl) <<
44 extern bool <<
45 nfs_stream_encode_acl(struct xdr_stream *xdr, <<
46 struct posix_acl *acl, i <<
47 41
48 #endif /* __LINUX_NFSACL_H */ 42 #endif /* __LINUX_NFSACL_H */
49 43
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