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/* $OpenBSD: nfsmount.h,v 1.16 2008/07/05 12:51:04 thib Exp $ */
/* $NetBSD: nfsmount.h,v 1.10 1996/02/18 11:54:03 fvdl Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)nfsmount.h 8.3 (Berkeley) 3/30/95
*/
#ifndef _NFS_NFSMOUNT_H_
#define _NFS_NFSMOUNT_H_
/*
* Mount structure.
* One allocated on every NFS mount.
* Holds NFS specific information for mount.
*/
struct nfsmount {
int nm_flag; /* Flags for soft/hard... */
struct mount *nm_mountp; /* Vfs structure for this filesystem */
int nm_numgrps; /* Max. size of groupslist */
u_char nm_fh[NFSX_V3FHMAX]; /* File handle of root dir */
int nm_fhsize; /* Size of root file handle */
struct socket *nm_so; /* Rpc socket */
int nm_sotype; /* Type of socket */
int nm_soproto; /* and protocol */
int nm_soflags; /* pr_flags for socket protocol */
struct mbuf *nm_nam; /* Addr of server */
int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
int nm_retry; /* Max retries */
int nm_srtt[4]; /* Timers for rpcs */
int nm_sdrtt[4];
int nm_sent; /* Request send count */
int nm_cwnd; /* Request send window */
int nm_timeouts; /* Request timeouts */
int nm_deadthresh; /* Threshold of timeouts-->dead server*/
int nm_rsize; /* Max size of read rpc */
int nm_wsize; /* Max size of write rpc */
int nm_readdirsize; /* Size of a readdir rpc */
int nm_readahead; /* Num. of blocks to readahead */
u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
u_short nm_acregmin; /* Attr cache file recently modified */
u_short nm_acregmax; /* ac file not recently modified */
u_short nm_acdirmin; /* ac for dir recently modified */
u_short nm_acdirmax; /* ac for dir not recently modified */
};
#ifdef _KERNEL
/*
* Convert mount ptr to nfsmount ptr.
*/
#define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
#endif /* _KERNEL */
/*
* Prototypes for NFS mount operations
*/
int nfs_mount(struct mount *mp, const char *path, void *data,
struct nameidata *ndp, struct proc *p);
int mountnfs(struct nfs_args *argp, struct mount *mp,
struct mbuf *nam, char *pth, char *hst);
int nfs_mountroot(void);
void nfs_decode_args(struct nfsmount *, struct nfs_args *, struct nfs_args *);
int nfs_start(struct mount *mp, int flags, struct proc *p);
int nfs_unmount(struct mount *mp, int mntflags, struct proc *p);
int nfs_root(struct mount *mp, struct vnode **vpp);
int nfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg,
struct proc *p);
int nfs_statfs(struct mount *mp, struct statfs *sbp, struct proc *p);
int nfs_sync(struct mount *mp, int waitfor, struct ucred *cred,
struct proc *p);
int nfs_vget(struct mount *, ino_t, struct vnode **);
int nfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp);
int nfs_vptofh(struct vnode *vp, struct fid *fhp);
int nfs_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
struct proc *);
void nfs_init(void);
#endif
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