nfsmount.h revision 1817 
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 *	@(#)nfsmount.h	8.1 (Berkeley) 6/10/93
37 * $Id$
38 */
39
40/*
41 * Mount structure.
42 * One allocated on every NFS mount.
43 * Holds NFS specific information for mount.
44 */
45struct	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 */
86int	nfs_mount __P((
87		struct mount *mp,
88		char *path,
89		caddr_t data,
90		struct nameidata *ndp,
91		struct proc *p));
92int	nfs_start __P((
93		struct mount *mp,
94		int flags,
95		struct proc *p));
96int	nfs_unmount __P((
97		struct mount *mp,
98		int mntflags,
99		struct proc *p));
100int	nfs_root __P((
101		struct mount *mp,
102		struct vnode **vpp));
103int	nfs_quotactl __P((
104		struct mount *mp,
105		int cmds,
106		uid_t uid,
107		caddr_t arg,
108		struct proc *p));
109int	nfs_statfs __P((
110		struct mount *mp,
111		struct statfs *sbp,
112		struct proc *p));
113int	nfs_sync __P((
114		struct mount *mp,
115		int waitfor,
116		struct ucred *cred,
117		struct proc *p));
118int	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));
125int	nfs_vptofh __P((
126		struct vnode *vp,
127		struct fid *fhp));
128int	nfs_init __P(());
129