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 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95
33 * $FreeBSD: src/sys/nfsclient/nfsmount.h,v 1.27.2.2 2005/06/26 23:55:50 green Exp $
34 */
35
36 #ifndef _NFSCLIENT_NFSMOUNT_H_
37 #define _NFSCLIENT_NFSMOUNT_H_
38
39 /*
40 * Mount structure.
41 * One allocated on every NFS mount.
42 * Holds NFS specific information for mount.
43 */
44 struct nfsmount {
45 int nm_flag; /* Flags for soft/hard... */
46 int nm_state; /* Internal state flags */
47 struct mount *nm_mountp; /* Vfs structure for this filesystem */
48 int nm_numgrps; /* Max. size of groupslist */
49 u_char nm_fh[NFSX_V4FH]; /* File handle of root dir */
50 int nm_fhsize; /* Size of root file handle */
51 struct rpcclnt nm_rpcclnt; /* rpc state */
52 struct socket *nm_so; /* Rpc socket */
53 int nm_sotype; /* Type of socket */
54 int nm_soproto; /* and protocol */
55 int nm_soflags; /* pr_flags for socket protocol */
56 struct sockaddr *nm_nam; /* Addr of server */
57 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
58 int nm_retry; /* Max retries */
59 int nm_srtt[4]; /* Timers for rpcs */
60 int nm_sdrtt[4];
61 int nm_sent; /* Request send count */
62 int nm_cwnd; /* Request send window */
63 int nm_timeouts; /* Request timeouts */
64 int nm_deadthresh; /* Threshold of timeouts-->dead server*/
65 int nm_rsize; /* Max size of read rpc */
66 int nm_wsize; /* Max size of write rpc */
67 int nm_readdirsize; /* Size of a readdir rpc */
68 int nm_readahead; /* Num. of blocks to readahead */
69 int nm_wcommitsize; /* Max size of commit for write */
70 int nm_acdirmin; /* Directory attr cache min lifetime */
71 int nm_acdirmax; /* Directory attr cache max lifetime */
72 int nm_acregmin; /* Reg file attr cache min lifetime */
73 int nm_acregmax; /* Reg file attr cache max lifetime */
74 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
75 TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */
76 short nm_bufqlen; /* number of buffers in queue */
77 short nm_bufqwant; /* process wants to add to the queue */
78 int nm_bufqiods; /* number of iods processing queue */
79 u_int64_t nm_maxfilesize; /* maximum file size */
80 struct nfs_rpcops *nm_rpcops;
81 int nm_tprintf_initial_delay; /* initial delay */
82 int nm_tprintf_delay; /* interval for messages */
83
84 /* NFSv4 */
85 uint64_t nm_clientid;
86 fsid_t nm_fsid;
87 u_int nm_lease_time;
88 time_t nm_last_renewal;
89 };
90
91 #if defined(_KERNEL)
92 /*
93 * Convert mount ptr to nfsmount ptr.
94 */
95 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
96
97 #ifndef NFS_TPRINTF_INITIAL_DELAY
98 #define NFS_TPRINTF_INITIAL_DELAY 12
99 #endif
100
101 #ifndef NFS_TPRINTF_DELAY
102 #define NFS_TPRINTF_DELAY 30
103 #endif
104
105 #endif
106
107 #endif
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