1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* $NetBSD: nfsnode.h,v 1.14 1995/03/26 20:37:32 jtc Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)nfsnode.h 8.6 (Berkeley) 8/18/94
*/
/*
* Silly rename structure that hangs off the nfsnode until the name
* can be removed by nfs_inactive()
*/
struct sillyrename {
struct ucred *s_cred;
struct vnode *s_dvp;
long s_namlen;
char s_name[20];
};
/*
* The nfsnode is the nfs equivalent to ufs's inode. Any similarity
* is purely coincidental.
* There is a unique nfsnode allocated for each active file,
* each current directory, each mounted-on file, text file, and the root.
* An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
*/
struct nfsnode {
LIST_ENTRY(nfsnode) n_hash; /* Hash chain */
CIRCLEQ_ENTRY(nfsnode) n_timer; /* Nqnfs timer chain */
nfsv2fh_t n_fh; /* NFS File Handle */
long n_flag; /* Flag for locking.. */
struct vnode *n_vnode; /* vnode associated with this node */
struct vattr n_vattr; /* Vnode attribute cache */
time_t n_attrstamp; /* Time stamp for cached attributes */
struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */
u_quad_t n_size; /* Current size of file */
int n_error; /* Save write error value */
u_long n_direofoffset; /* Dir. EOF offset cache */
time_t n_mtime; /* Prev modify time. */
time_t n_ctime; /* Prev create time. */
u_quad_t n_brev; /* Modify rev when cached */
u_quad_t n_lrev; /* Modify rev for lease */
time_t n_expiry; /* Lease expiry time */
struct lockf *n_lockf; /* Advisory lock records */
struct sillyrename n_silly; /* Silly rename struct */
struct timeval n_atim; /* Special file times */
struct timeval n_mtim;
};
/*
* Flags for n_flag
*/
#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */
#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */
#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */
#define NWRITEERR 0x0008 /* Flag write errors so close will know */
#define NQNFSNONCACHE 0x0020 /* Non-cachable lease */
#define NQNFSWRITE 0x0040 /* Write lease */
#define NQNFSEVICTED 0x0080 /* Has been evicted */
#define NACC 0x0100 /* Special file accessed */
#define NUPD 0x0200 /* Special file updated */
#define NCHG 0x0400 /* Special file times changed */
/*
* Convert between nfsnode pointers and vnode pointers
*/
#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
/*
* Queue head for nfsiod's
*/
TAILQ_HEAD(, buf) nfs_bufq;
#ifdef _KERNEL
/*
* Prototypes for NFS vnode operations
*/
int nfs_lookup __P((struct vop_lookup_args *));
int nfs_create __P((struct vop_create_args *));
int nfs_mknod __P((struct vop_mknod_args *));
int nfs_open __P((struct vop_open_args *));
int nfs_close __P((struct vop_close_args *));
int nfsspec_close __P((struct vop_close_args *));
#ifdef FIFO
int nfsfifo_close __P((struct vop_close_args *));
#endif
int nfs_access __P((struct vop_access_args *));
int nfsspec_access __P((struct vop_access_args *));
int nfs_getattr __P((struct vop_getattr_args *));
int nfs_setattr __P((struct vop_setattr_args *));
int nfs_read __P((struct vop_read_args *));
int nfs_write __P((struct vop_write_args *));
#define nfs_lease_check ((int (*) __P((struct vop_lease_args *)))nullop)
int nfsspec_read __P((struct vop_read_args *));
int nfsspec_write __P((struct vop_write_args *));
#ifdef FIFO
int nfsfifo_read __P((struct vop_read_args *));
int nfsfifo_write __P((struct vop_write_args *));
#endif
#define nfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))enoioctl)
#define nfs_select ((int (*) __P((struct vop_select_args *)))seltrue)
int nfs_mmap __P((struct vop_mmap_args *));
int nfs_fsync __P((struct vop_fsync_args *));
#define nfs_seek ((int (*) __P((struct vop_seek_args *)))nullop)
int nfs_remove __P((struct vop_remove_args *));
int nfs_link __P((struct vop_link_args *));
int nfs_rename __P((struct vop_rename_args *));
int nfs_mkdir __P((struct vop_mkdir_args *));
int nfs_rmdir __P((struct vop_rmdir_args *));
int nfs_symlink __P((struct vop_symlink_args *));
int nfs_readdir __P((struct vop_readdir_args *));
int nfs_readlink __P((struct vop_readlink_args *));
int nfs_abortop __P((struct vop_abortop_args *));
int nfs_inactive __P((struct vop_inactive_args *));
int nfs_reclaim __P((struct vop_reclaim_args *));
int nfs_lock __P((struct vop_lock_args *));
int nfs_unlock __P((struct vop_unlock_args *));
int nfs_bmap __P((struct vop_bmap_args *));
int nfs_strategy __P((struct vop_strategy_args *));
int nfs_print __P((struct vop_print_args *));
int nfs_islocked __P((struct vop_islocked_args *));
int nfs_pathconf __P((struct vop_pathconf_args *));
int nfs_advlock __P((struct vop_advlock_args *));
int nfs_blkatoff __P((struct vop_blkatoff_args *));
int nfs_vget __P((struct mount *, ino_t, struct vnode **));
int nfs_valloc __P((struct vop_valloc_args *));
#define nfs_reallocblks \
((int (*) __P((struct vop_reallocblks_args *)))eopnotsupp)
int nfs_vfree __P((struct vop_vfree_args *));
int nfs_truncate __P((struct vop_truncate_args *));
int nfs_update __P((struct vop_update_args *));
int nfs_bwrite __P((struct vop_bwrite_args *));
#endif /* _KERNEL */
|
