xref: /freebsd/sys/nfs/nfs_mountcommon.h (revision fb47a3769c514735bceb2822a64e5e70c3d2f7a4)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2009 Rick Macklem, University of Guelph
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _NFS_MOUNTCOMMON_H_
32 #define	_NFS_MOUNTCOMMON_H_
33 
34 /*
35  * The common fields of the nfsmount structure for the two clients
36  * used by the nlm. It includes a function pointer that provides
37  * a mechanism for getting the client specific info for an nfs vnode.
38  */
39 typedef void	nfs_getinfofromvp_ftype(struct vnode *, uint8_t *, size_t *,
40 		    struct sockaddr_storage *, int *, off_t *,
41 		    struct timeval *);
42 typedef int	nfs_vinvalbuf_ftype(struct vnode *, int, struct thread *, int);
43 
44 struct	nfsmount_common {
45 	struct mtx	nmcom_mtx;
46 	int	nmcom_flag;		/* Flags for soft/hard... */
47 	int	nmcom_state;		/* Internal state flags */
48 	struct	mount *nmcom_mountp;	/* Vfs structure for this filesystem */
49 	int	nmcom_timeo;		/* Init timer for NFSMNT_DUMBTIMR */
50 	int	nmcom_retry;		/* Max retries */
51 	char	nmcom_hostname[MNAMELEN];	/* server's name */
52 	nfs_getinfofromvp_ftype	*nmcom_getinfo;	/* Get info from nfsnode */
53 	nfs_vinvalbuf_ftype	*nmcom_vinvalbuf; /* Invalidate buffers */
54 };
55 
56 #endif	/* _NFS_MOUNTCOMMON_H_ */
57