1/*	$NetBSD$	*/
2/*-
3 * Copyright (c) 2009 Rick Macklem, University of Guelph
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * FreeBSD: head/sys/fs/nfs/nfscl.h 244042 2012-12-08 22:52:39Z rmacklem
28 * $NetBSD$
29 */
30
31#ifndef	_NFS_NFSCL_H
32#define	_NFS_NFSCL_H
33
34/*
35 * Extra stuff for a NFSv4 nfsnode.
36 * MALLOC'd to the correct length for the name and file handle.
37 * n4_data has the file handle, followed by the file name.
38 * The macro NFS4NODENAME() returns a pointer to the start of the
39 * name.
40 */
41struct nfsv4node {
42	u_int16_t	n4_fhlen;
43	u_int16_t	n4_namelen;
44	u_int8_t	n4_data[1];
45};
46
47#define	NFS4NODENAME(n)	(&((n)->n4_data[(n)->n4_fhlen]))
48
49/*
50 * Just a macro to convert the nfscl_reqstart arguments.
51 */
52#define	NFSCL_REQSTART(n, p, v) 					\
53	nfscl_reqstart((n), (p), VFSTONFS((v)->v_mount), 		\
54	    VTONFS(v)->n_fhp->nfh_fh, VTONFS(v)->n_fhp->nfh_len, NULL, NULL)
55
56/*
57 * These two macros convert between a lease duration and renew interval.
58 * For now, just make the renew interval 1/2 the lease duration.
59 * (They should be inverse operators.)
60 */
61#define	NFSCL_RENEW(l)	(((l) < 2) ? 1 : ((l) / 2))
62#define	NFSCL_LEASE(r)	((r) * 2)
63
64/*
65 * These flag bits are used for the argument to nfscl_fillsattr() to
66 * indicate special handling of the attributes.
67 */
68#define	NFSSATTR_FULL		0x1
69#define	NFSSATTR_SIZE0		0x2
70#define	NFSSATTR_SIZENEG1	0x4
71#define	NFSSATTR_SIZERDEV	0x8
72
73/* Use this macro for debug printfs. */
74#define	NFSCL_DEBUG(level, ...)	do {					\
75		if (nfscl_debuglevel >= (level))			\
76			printf(__VA_ARGS__);				\
77	} while (0)
78
79#endif	/* _NFS_NFSCL_H */
80