/*	$NetBSD: nfsmount.h,v 1.9 1996/02/09 21:48:44 christos 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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	8.2 (Berkeley) 8/18/94
 */

/*
 * 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 */
	nfsv2fh_t nm_fh;		/* File handle of root dir */
	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_readahead;		/* Num. of blocks to readahead */
	int	nm_leaseterm;		/* Term (sec) for NQNFS lease */
	CIRCLEQ_HEAD(, nfsnode) nm_timerhead; /* Head of lease timer queue */
	struct vnode *nm_inprog;	/* Vnode in prog by nqnfs_clientd() */
	uid_t	nm_authuid;		/* Uid for authenticator */
	int	nm_authtype;		/* Authenticator type */
	int	nm_authlen;		/* and length */
	char	*nm_authstr;		/* Authenticator string */
};

#ifdef _KERNEL
/*
 * Convert mount ptr to nfsmount ptr.
 */
#define VFSTONFS(mp)	((struct nfsmount *)((mp)->mnt_data))

/*
 * Prototypes for NFS mount operations
 */
int nfs_statfs __P((struct mount *, struct statfs *, struct proc *));
int nfs_mountroot __P((void));
void nfs_decode_args __P((struct nfsmount *, struct nfs_args *));
int nfs_mount __P((struct mount *, char *, caddr_t, struct nameidata *,
		   struct proc *));
int mountnfs __P((struct nfs_args *, struct mount *, struct mbuf *, char *,
		  char *, struct vnode **));
int nfs_unmount __P((struct mount *, int, struct proc *));
int nfs_root __P((struct mount *, struct vnode **));
int nfs_sync __P((struct mount *, int, struct ucred *, struct proc *));
int nfs_vget __P((struct mount *, ino_t, struct vnode **));
int nfs_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
		    struct vnode **, int *, struct ucred **));
int nfs_vptofh __P((struct vnode *, struct fid *));
int nfs_start __P((struct mount *, int, struct proc *));
int nfs_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *));
void nfs_init __P((void));

#endif /* _KERNEL */