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nfsmount.h revision 1.4 
      1 /*
      2  * Copyright (c) 1989, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Rick Macklem at The University of Guelph.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	from: @(#)nfsmount.h	8.1 (Berkeley) 6/10/93
     37  *	$Id: nfsmount.h,v 1.4 1994/06/08 11:37:10 mycroft Exp $
     38  */
     39 
     40 /*
     41  * Mount structure.
     42  * One allocated on every NFS mount.
     43  * Holds NFS specific information for mount.
     44  */
     45 struct	nfsmount {
     46 	int	nm_flag;		/* Flags for soft/hard... */
     47 	struct	mount *nm_mountp;	/* Vfs structure for this filesystem */
     48 	int	nm_numgrps;		/* Max. size of groupslist */
     49 	nfsv2fh_t nm_fh;		/* File handle of root dir */
     50 	struct	socket *nm_so;		/* Rpc socket */
     51 	int	nm_sotype;		/* Type of socket */
     52 	int	nm_soproto;		/* and protocol */
     53 	int	nm_soflags;		/* pr_flags for socket protocol */
     54 	struct	mbuf *nm_nam;		/* Addr of server */
     55 	int	nm_timeo;		/* Init timer for NFSMNT_DUMBTIMR */
     56 	int	nm_retry;		/* Max retries */
     57 	int	nm_srtt[4];		/* Timers for rpcs */
     58 	int	nm_sdrtt[4];
     59 	int	nm_sent;		/* Request send count */
     60 	int	nm_cwnd;		/* Request send window */
     61 	int	nm_timeouts;		/* Request timeouts */
     62 	int	nm_deadthresh;		/* Threshold of timeouts-->dead server*/
     63 	int	nm_rsize;		/* Max size of read rpc */
     64 	int	nm_wsize;		/* Max size of write rpc */
     65 	int	nm_readahead;		/* Num. of blocks to readahead */
     66 	int	nm_leaseterm;		/* Term (sec) for NQNFS lease */
     67 	struct nfsnode *nm_tnext;	/* Head of lease timer queue */
     68 	struct nfsnode *nm_tprev;
     69 	struct vnode *nm_inprog;	/* Vnode in prog by nqnfs_clientd() */
     70 	uid_t	nm_authuid;		/* Uid for authenticator */
     71 	int	nm_authtype;		/* Authenticator type */
     72 	int	nm_authlen;		/* and length */
     73 	char	*nm_authstr;		/* Authenticator string */
     74 };
     75 
     76 #ifdef KERNEL
     77 /*
     78  * Convert mount ptr to nfsmount ptr.
     79  */
     80 #define VFSTONFS(mp)	((struct nfsmount *)((mp)->mnt_data))
     81 #endif /* KERNEL */
     82 
     83 /*
     84  * Prototypes for NFS mount operations
     85  */
     86 int	nfs_mount __P((
     87 		struct mount *mp,
     88 		char *path,
     89 		caddr_t data,
     90 		struct nameidata *ndp,
     91 		struct proc *p));
     92 int	nfs_start __P((
     93 		struct mount *mp,
     94 		int flags,
     95 		struct proc *p));
     96 int	nfs_unmount __P((
     97 		struct mount *mp,
     98 		int mntflags,
     99 		struct proc *p));
    100 int	nfs_root __P((
    101 		struct mount *mp,
    102 		struct vnode **vpp));
    103 int	nfs_quotactl __P((
    104 		struct mount *mp,
    105 		int cmds,
    106 		uid_t uid,
    107 		caddr_t arg,
    108 		struct proc *p));
    109 int	nfs_statfs __P((
    110 		struct mount *mp,
    111 		struct statfs *sbp,
    112 		struct proc *p));
    113 int	nfs_sync __P((
    114 		struct mount *mp,
    115 		int waitfor,
    116 		struct ucred *cred,
    117 		struct proc *p));
    118 int	nfs_fhtovp __P((
    119 		struct mount *mp,
    120 		struct fid *fhp,
    121 		struct mbuf *nam,
    122 		struct vnode **vpp,
    123 		int *exflagsp,
    124 		struct ucred **credanonp));
    125 int	nfs_vptofh __P((
    126 		struct vnode *vp,
    127 		struct fid *fhp));
    128 int	nfs_init __P(());
    129