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