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: releng/6.2/sys/nfsclient/nfsmount.h 159056 2006-05-30 00:43:07Z cel $
34 */
35
36 #ifndef _NFSCLIENT_NFSMOUNT_H_
37 #define _NFSCLIENT_NFSMOUNT_H_
38
39 struct nfs_tcp_mountstate {
40 int rpcresid;
41 #define NFS_TCP_EXPECT_RPCMARKER 0x0001 /* Expect to see a RPC/TCP marker next */
42 #define NFS_TCP_FORCE_RECONNECT 0x0002 /* Force a TCP reconnect */
43 int flags;
44 struct mtx mtx;
45 };
46
47 /*
48 * Mount structure.
49 * One allocated on every NFS mount.
50 * Holds NFS specific information for mount.
51 */
52 struct nfsmount {
53 int nm_flag; /* Flags for soft/hard... */
54 int nm_state; /* Internal state flags */
55 struct mount *nm_mountp; /* Vfs structure for this filesystem */
56 int nm_numgrps; /* Max. size of groupslist */
57 u_char nm_fh[NFSX_V4FH]; /* File handle of root dir */
58 int nm_fhsize; /* Size of root file handle */
59 struct rpcclnt nm_rpcclnt; /* rpc state */
60 struct socket *nm_so; /* Rpc socket */
61 int nm_sotype; /* Type of socket */
62 int nm_soproto; /* and protocol */
63 int nm_soflags; /* pr_flags for socket protocol */
64 struct sockaddr *nm_nam; /* Addr of server */
65 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
66 int nm_retry; /* Max retries */
67 int nm_srtt[NFS_MAX_TIMER], /* RTT Timers for rpcs */
68 nm_sdrtt[NFS_MAX_TIMER];
69 int nm_sent; /* Request send count */
70 int nm_cwnd; /* Request send window */
71 int nm_timeouts; /* Request timeouts */
72 int nm_deadthresh; /* Threshold of timeouts-->dead server*/
73 int nm_rsize; /* Max size of read rpc */
74 int nm_wsize; /* Max size of write rpc */
75 int nm_readdirsize; /* Size of a readdir rpc */
76 int nm_readahead; /* Num. of blocks to readahead */
77 int nm_wcommitsize; /* Max size of commit for write */
78 int nm_acdirmin; /* Directory attr cache min lifetime */
79 int nm_acdirmax; /* Directory attr cache max lifetime */
80 int nm_acregmin; /* Reg file attr cache min lifetime */
81 int nm_acregmax; /* Reg file attr cache max lifetime */
82 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
83 TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */
84 short nm_bufqlen; /* number of buffers in queue */
85 short nm_bufqwant; /* process wants to add to the queue */
86 int nm_bufqiods; /* number of iods processing queue */
87 u_int64_t nm_maxfilesize; /* maximum file size */
88 struct nfs_rpcops *nm_rpcops;
89 int nm_tprintf_initial_delay; /* initial delay */
90 int nm_tprintf_delay; /* interval for messages */
91 struct nfs_tcp_mountstate nm_nfstcpstate;
92
93 /* NFSv4 */
94 uint64_t nm_clientid;
95 fsid_t nm_fsid;
96 u_int nm_lease_time;
97 time_t nm_last_renewal;
98 };
99
100 #if defined(_KERNEL)
101 /*
102 * Convert mount ptr to nfsmount ptr.
103 */
104 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
105
106 #ifndef NFS_TPRINTF_INITIAL_DELAY
107 #define NFS_TPRINTF_INITIAL_DELAY 12
108 #endif
109
110 #ifndef NFS_TPRINTF_DELAY
111 #define NFS_TPRINTF_DELAY 30
112 #endif
113
114 #endif
115
116 #endif
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