nfs_mountcommon.h revision 214053 
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: head/sys/nfs/nfs_mountcommon.h 214053 2010-10-19 11:55:58Z rmacklem $
27 */
28
29#ifndef _NFS_MOUNTCOMMON_H_
30#define	_NFS_MOUNTCOMMON_H_
31
32/*
33 * The common fields of the nfsmount structure for the two clients
34 * used by the nlm. It includes a function pointer that provides
35 * a mechanism for getting the client specific info for an nfs vnode.
36 */
37typedef void	nfs_getinfofromvp_ftype(struct vnode *, uint8_t *, size_t *,
38		    struct sockaddr_storage *, int *, off_t *);
39
40struct	nfsmount_common {
41	struct mtx	nmcom_mtx;
42	int	nmcom_flag;		/* Flags for soft/hard... */
43	int	nmcom_state;		/* Internal state flags */
44	struct	mount *nmcom_mountp;	/* Vfs structure for this filesystem */
45	int	nmcom_timeo;		/* Init timer for NFSMNT_DUMBTIMR */
46	int	nmcom_retry;		/* Max retries */
47	char	nmcom_hostname[MNAMELEN];	/* server's name */
48	nfs_getinfofromvp_ftype	*nmcom_getinfo;	/* Get info from nfsnode */
49};
50
51#endif	/* _NFS_MOUNTCOMMON_H_ */
52