2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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. 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.
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
32 * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95
33 * $FreeBSD: src/sys/nfs/nfsmount.h,v 1.17 1999/12/29 04:54:54 peter Exp $
34 * $DragonFly: src/sys/vfs/nfs/nfsmount.h,v 1.8 2006/04/07 06:38:33 dillon Exp $
38 #ifndef _NFS_NFSMOUNT_H_
39 #define _NFS_NFSMOUNT_H_
41 #include <sys/mutex.h>
42 #include <sys/thread.h> /* token */
54 * One allocated on every NFS mount.
55 * Holds NFS specific information for mount.
58 int nm_flag; /* Flags for soft/hard... */
59 int nm_state; /* Internal state flags */
60 TAILQ_ENTRY(nfsmount) nm_entry; /* entry in nfsmountq */
61 struct mtx nm_rxlock; /* receive socket lock */
62 struct mtx nm_txlock; /* send socket lock */
65 enum nfssvc_state nm_rxstate;
66 enum nfssvc_state nm_txstate;
67 struct mount *nm_mountp; /* Vfs structure for this filesystem */
68 struct malloc_type *nm_mnode_obj; /* kmalloc store for nfsnode */
69 int nm_numgrps; /* Max. size of groupslist */
70 u_char nm_fh[NFSX_V3FHMAX]; /* File handle of root dir */
71 int nm_fhsize; /* Size of root file handle */
72 struct socket *nm_so; /* Rpc socket */
73 int nm_sotype; /* Type of socket */
74 int nm_soproto; /* and protocol */
75 int nm_soflags; /* pr_flags for socket protocol */
76 struct sockaddr *nm_nam; /* Addr of server */
77 int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
78 int nm_retry; /* Max retries */
79 int nm_srtt[6]; /* Timers for rpcs (see proct[]) */
81 int nm_maxasync_scaled; /* Used to control congestion */
82 int nm_timeouts; /* Request timeouts */
83 int nm_deadthresh; /* Threshold of timeouts-->dead server*/
84 u_int32_t nm_lastreprocnum; /* Last resent procnum for dup detect */
85 int nm_rsize; /* Max size of read rpc */
86 int nm_wsize; /* Max size of write rpc */
87 int nm_readdirsize; /* Size of a readdir rpc */
88 int nm_readahead; /* Num. of blocks to readahead */
89 int nm_unused01; /* Term (sec) for NQNFS lease */
90 int nm_acdirmin; /* Directory attr cache min lifetime */
91 int nm_acdirmax; /* Directory attr cache max lifetime */
92 int nm_acregmin; /* Reg file attr cache min lifetime */
93 int nm_acregmax; /* Reg file attr cache max lifetime */
94 uid_t nm_authuid; /* Uid for authenticator */
95 int nm_authtype; /* Authenticator type */
96 int nm_authlen; /* and length */
97 char *nm_authstr; /* Authenticator string */
98 char *nm_verfstr; /* and the verifier */
100 u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
101 NFSKERBKEY_T nm_key; /* and the session key */
102 int nm_numuids; /* Number of nfsuid mappings */
103 TAILQ_HEAD(, nfsuid) nm_uidlruhead; /* Lists of nfsuid mappings */
104 LIST_HEAD(, nfsuid) nm_uidhashtbl[NFS_MUIDHASHSIZ];
105 TAILQ_HEAD(, bio) nm_bioq; /* async io buffer queue */
106 TAILQ_HEAD(, nfsreq) nm_reqtxq; /* nfsreq queue - tx processing */
107 TAILQ_HEAD(, nfsreq) nm_reqrxq; /* nfsreq queue - rx processing */
108 TAILQ_HEAD(, nfsreq) nm_reqq; /* nfsreq queue - pending */
109 int nm_bioqlen; /* number of buffers in queue */
110 int nm_reqqlen; /* number of nfsreqs in queue */
111 u_int64_t nm_maxfilesize; /* maximum file size */
112 struct ucred *nm_cred; /* 'root' credential */
113 struct lwkt_token nm_token; /* protective token */
119 * Convert mount ptr to nfsmount ptr.
121 #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
122 extern void nfs_free_mount(struct nfsmount *nmp);
123 extern void nfs_setvtype(struct vnode *, enum vtype);