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1.1 root 1: /*
2: * Copyright (c) 1989 The Regents of the University of California.
3: * 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: *
1.1.1.3 ! root 36: * from: @(#)nfsnode.h 7.12 (Berkeley) 4/16/91
! 37: * nfsnode.h,v 1.3 1993/05/22 09:00:56 cgd Exp
1.1 root 38: */
39:
1.1.1.2 root 40: #ifndef _NFS_NFSNODE_H_
41: #define _NFS_NFSNODE_H_
42:
1.1 root 43: /*
44: * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
45: * is purely coincidental.
46: * There is a unique nfsnode allocated for each active file,
47: * each current directory, each mounted-on file, text file, and the root.
48: * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
49: */
50:
51: struct nfsnode {
52: struct nfsnode *n_chain[2]; /* must be first */
53: nfsv2fh_t n_fh; /* NFS File Handle */
54: long n_flag; /* Flag for locking.. */
55: struct vnode *n_vnode; /* vnode associated with this nfsnode */
56: time_t n_attrstamp; /* Time stamp (sec) for attributes */
57: struct vattr n_vattr; /* Vnode attribute cache */
58: struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */
59: u_long n_size; /* Current size of file */
1.1.1.3 ! root 60: struct lockf *n_lockf; /* Locking record of file */
1.1 root 61: time_t n_mtime; /* Prev modify time to maintain data cache consistency*/
62: time_t n_ctime; /* Prev create time for name cache consistency*/
63: int n_error; /* Save write error value */
64: pid_t n_lockholder; /* holder of nfsnode lock */
65: pid_t n_lockwaiter; /* most recent waiter for nfsnode lock */
66: u_long n_direofoffset; /* Dir. EOF offset cache */
67: };
68:
69: #define n_forw n_chain[0]
70: #define n_back n_chain[1]
71:
72: #ifdef KERNEL
73: /*
74: * Convert between nfsnode pointers and vnode pointers
75: */
76: #define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
77: #define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
78: #endif
79: /*
80: * Flags for n_flag
81: */
82: #define NLOCKED 0x1 /* Lock the node for other local accesses */
83: #define NWANT 0x2 /* Want above lock */
84: #define NMODIFIED 0x4 /* Might have a modified buffer in bio */
85: #define NWRITEERR 0x8 /* Flag write errors so close will know */
86:
87: /*
88: * Prototypes for NFS vnode operations
89: */
90: int nfs_lookup __P((
91: struct vnode *vp,
92: struct nameidata *ndp,
93: struct proc *p));
94: int nfs_create __P((
95: struct nameidata *ndp,
96: struct vattr *vap,
97: struct proc *p));
98: int nfs_mknod __P((
99: struct nameidata *ndp,
100: struct vattr *vap,
101: struct ucred *cred,
102: struct proc *p));
103: int nfs_open __P((
104: struct vnode *vp,
105: int mode,
106: struct ucred *cred,
107: struct proc *p));
108: int nfs_close __P((
109: struct vnode *vp,
110: int fflag,
111: struct ucred *cred,
112: struct proc *p));
113: int nfs_access __P((
114: struct vnode *vp,
115: int mode,
116: struct ucred *cred,
117: struct proc *p));
118: int nfs_getattr __P((
119: struct vnode *vp,
120: struct vattr *vap,
121: struct ucred *cred,
122: struct proc *p));
123: int nfs_setattr __P((
124: struct vnode *vp,
125: struct vattr *vap,
126: struct ucred *cred,
127: struct proc *p));
128: int nfs_read __P((
129: struct vnode *vp,
130: struct uio *uio,
131: int ioflag,
132: struct ucred *cred));
133: int nfs_write __P((
134: struct vnode *vp,
135: struct uio *uio,
136: int ioflag,
137: struct ucred *cred));
138: #define nfs_ioctl ((int (*) __P(( \
139: struct vnode *vp, \
140: int command, \
141: caddr_t data, \
142: int fflag, \
143: struct ucred *cred, \
144: struct proc *p))) enoioctl)
145: #define nfs_select ((int (*) __P(( \
146: struct vnode *vp, \
147: int which, \
148: int fflags, \
149: struct ucred *cred, \
150: struct proc *p))) seltrue)
151: int nfs_mmap __P((
152: struct vnode *vp,
153: int fflags,
154: struct ucred *cred,
155: struct proc *p));
156: int nfs_fsync __P((
157: struct vnode *vp,
158: int fflags,
159: struct ucred *cred,
160: int waitfor,
161: struct proc *p));
162: #define nfs_seek ((int (*) __P(( \
163: struct vnode *vp, \
164: off_t oldoff, \
165: off_t newoff, \
166: struct ucred *cred))) nullop)
167: int nfs_remove __P((
168: struct nameidata *ndp,
169: struct proc *p));
170: int nfs_link __P((
171: struct vnode *vp,
172: struct nameidata *ndp,
173: struct proc *p));
174: int nfs_rename __P((
175: struct nameidata *fndp,
176: struct nameidata *tdnp,
177: struct proc *p));
178: int nfs_mkdir __P((
179: struct nameidata *ndp,
180: struct vattr *vap,
181: struct proc *p));
182: int nfs_rmdir __P((
183: struct nameidata *ndp,
184: struct proc *p));
185: int nfs_symlink __P((
186: struct nameidata *ndp,
187: struct vattr *vap,
188: char *target,
189: struct proc *p));
190: int nfs_readdir __P((
191: struct vnode *vp,
192: struct uio *uio,
193: struct ucred *cred,
194: int *eofflagp));
195: int nfs_readlink __P((
196: struct vnode *vp,
197: struct uio *uio,
198: struct ucred *cred));
199: int nfs_abortop __P((
200: struct nameidata *ndp));
201: int nfs_inactive __P((
202: struct vnode *vp,
203: struct proc *p));
204: int nfs_reclaim __P((
205: struct vnode *vp));
206: int nfs_lock __P((
207: struct vnode *vp));
208: int nfs_unlock __P((
209: struct vnode *vp));
210: int nfs_bmap __P((
211: struct vnode *vp,
212: daddr_t bn,
213: struct vnode **vpp,
214: daddr_t *bnp));
215: int nfs_strategy __P((
216: struct buf *bp));
217: int nfs_print __P((
218: struct vnode *vp));
219: int nfs_islocked __P((
220: struct vnode *vp));
221: int nfs_advlock __P((
222: struct vnode *vp,
223: caddr_t id,
224: int op,
225: struct flock *fl,
226: int flags));
1.1.1.2 root 227:
228: #endif /* !_NFS_NFSNODE_H_ */
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