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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/nfs/nfs_mountcommon.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2009 Rick Macklem, University of Guelph

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _NFS_MOUNTCOMMON_H_

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#define	_NFS_MOUNTCOMMON_H_

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/*

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 * The common fields of the nfsmount structure for the two clients

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 * used by the nlm. It includes a function pointer that provides

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 * a mechanism for getting the client specific info for an nfs vnode.

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 */

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typedef void	nfs_getinfofromvp_ftype(struct vnode *, uint8_t *, size_t *,

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		    struct sockaddr_storage *, int *, off_t *,

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		    struct timeval *);

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typedef int	nfs_vinvalbuf_ftype(struct vnode *, int, struct thread *, int);

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struct	nfsmount_common {

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	struct mtx	nmcom_mtx;

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	int	nmcom_flag;		/* Flags for soft/hard... */

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	int	nmcom_state;		/* Internal state flags */

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	struct	mount *nmcom_mountp;	/* Vfs structure for this filesystem */

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	int	nmcom_timeo;		/* Init timer for NFSMNT_DUMBTIMR */

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	int	nmcom_retry;		/* Max retries */

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	char	nmcom_hostname[MNAMELEN];	/* server's name */

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	nfs_getinfofromvp_ftype	*nmcom_getinfo;	/* Get info from nfsnode */

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	nfs_vinvalbuf_ftype	*nmcom_vinvalbuf; /* Invalidate buffers */

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};

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#endif	/* _NFS_MOUNTCOMMON_H_ */

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