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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/dtrace/fbt/@/fs/nfs/nfscl.h |
/*-
* Copyright (c) 2009 Rick Macklem, University of Guelph
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/fs/nfs/nfscl.h 191783 2009-05-04 15:23:58Z rmacklem $
*/
#ifndef _NFS_NFSCL_H
#define _NFS_NFSCL_H
/*
* Extra stuff for a NFSv4 nfsnode.
* MALLOC'd to the correct length for the name and file handle.
* n4_data has the file handle, followed by the file name.
* The macro NFS4NODENAME() returns a pointer to the start of the
* name.
*/
struct nfsv4node {
u_int16_t n4_fhlen;
u_int16_t n4_namelen;
u_int8_t n4_data[1];
};
#define NFS4NODENAME(n) (&((n)->n4_data[(n)->n4_fhlen]))
/*
* Just a macro to convert the nfscl_reqstart arguments.
*/
#define NFSCL_REQSTART(n, p, v) \
nfscl_reqstart((n), (p), VFSTONFS((v)->v_mount), \
VTONFS(v)->n_fhp->nfh_fh, VTONFS(v)->n_fhp->nfh_len, NULL)
/*
* These two macros convert between a lease duration and renew interval.
* For now, just make the renew interval 1/2 the lease duration.
* (They should be inverse operators.)
*/
#define NFSCL_RENEW(l) (((l) < 2) ? 1 : ((l) / 2))
#define NFSCL_LEASE(r) ((r) * 2)
/*
* These flag bits are used for the argument to nfscl_fillsattr() to
* indicate special handling of the attributes.
*/
#define NFSSATTR_FULL 0x1
#define NFSSATTR_SIZE0 0x2
#define NFSSATTR_SIZENEG1 0x4
#define NFSSATTR_SIZERDEV 0x8
#endif /* _NFS_NFSCL_H */