![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to nfsnode.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Net/2] / Net2 / nfs|
Return to nfsnode.h CVS log | Up to [Net/2] / Net2 / nfs |
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: *
36: * @(#)nfsnode.h 7.12 (Berkeley) 4/16/91
37: */
38:
1.1.1.2 ! root 39: #ifndef _NFS_NFSNODE_H_
! 40: #define _NFS_NFSNODE_H_
! 41:
1.1 root 42: /*
43: * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
44: * is purely coincidental.
45: * There is a unique nfsnode allocated for each active file,
46: * each current directory, each mounted-on file, text file, and the root.
47: * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
48: */
49:
50: struct nfsnode {
51: struct nfsnode *n_chain[2]; /* must be first */
52: nfsv2fh_t n_fh; /* NFS File Handle */
53: long n_flag; /* Flag for locking.. */
54: struct vnode *n_vnode; /* vnode associated with this nfsnode */
55: time_t n_attrstamp; /* Time stamp (sec) for attributes */
56: struct vattr n_vattr; /* Vnode attribute cache */
57: struct sillyrename *n_sillyrename; /* Ptr to silly rename struct */
58: u_long n_size; /* Current size of file */
59: time_t n_mtime; /* Prev modify time to maintain data cache consistency*/
60: time_t n_ctime; /* Prev create time for name cache consistency*/
61: int n_error; /* Save write error value */
62: pid_t n_lockholder; /* holder of nfsnode lock */
63: pid_t n_lockwaiter; /* most recent waiter for nfsnode lock */
64: u_long n_direofoffset; /* Dir. EOF offset cache */
65: };
66:
67: #define n_forw n_chain[0]
68: #define n_back n_chain[1]
69:
70: #ifdef KERNEL
71: /*
72: * Convert between nfsnode pointers and vnode pointers
73: */
74: #define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
75: #define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
76: #endif
77: /*
78: * Flags for n_flag
79: */
80: #define NLOCKED 0x1 /* Lock the node for other local accesses */
81: #define NWANT 0x2 /* Want above lock */
82: #define NMODIFIED 0x4 /* Might have a modified buffer in bio */
83: #define NWRITEERR 0x8 /* Flag write errors so close will know */
84:
85: /*
86: * Prototypes for NFS vnode operations
87: */
88: int nfs_lookup __P((
89: struct vnode *vp,
90: struct nameidata *ndp,
91: struct proc *p));
92: int nfs_create __P((
93: struct nameidata *ndp,
94: struct vattr *vap,
95: struct proc *p));
96: int nfs_mknod __P((
97: struct nameidata *ndp,
98: struct vattr *vap,
99: struct ucred *cred,
100: struct proc *p));
101: int nfs_open __P((
102: struct vnode *vp,
103: int mode,
104: struct ucred *cred,
105: struct proc *p));
106: int nfs_close __P((
107: struct vnode *vp,
108: int fflag,
109: struct ucred *cred,
110: struct proc *p));
111: int nfs_access __P((
112: struct vnode *vp,
113: int mode,
114: struct ucred *cred,
115: struct proc *p));
116: int nfs_getattr __P((
117: struct vnode *vp,
118: struct vattr *vap,
119: struct ucred *cred,
120: struct proc *p));
121: int nfs_setattr __P((
122: struct vnode *vp,
123: struct vattr *vap,
124: struct ucred *cred,
125: struct proc *p));
126: int nfs_read __P((
127: struct vnode *vp,
128: struct uio *uio,
129: int ioflag,
130: struct ucred *cred));
131: int nfs_write __P((
132: struct vnode *vp,
133: struct uio *uio,
134: int ioflag,
135: struct ucred *cred));
136: #define nfs_ioctl ((int (*) __P(( \
137: struct vnode *vp, \
138: int command, \
139: caddr_t data, \
140: int fflag, \
141: struct ucred *cred, \
142: struct proc *p))) enoioctl)
143: #define nfs_select ((int (*) __P(( \
144: struct vnode *vp, \
145: int which, \
146: int fflags, \
147: struct ucred *cred, \
148: struct proc *p))) seltrue)
149: int nfs_mmap __P((
150: struct vnode *vp,
151: int fflags,
152: struct ucred *cred,
153: struct proc *p));
154: int nfs_fsync __P((
155: struct vnode *vp,
156: int fflags,
157: struct ucred *cred,
158: int waitfor,
159: struct proc *p));
160: #define nfs_seek ((int (*) __P(( \
161: struct vnode *vp, \
162: off_t oldoff, \
163: off_t newoff, \
164: struct ucred *cred))) nullop)
165: int nfs_remove __P((
166: struct nameidata *ndp,
167: struct proc *p));
168: int nfs_link __P((
169: struct vnode *vp,
170: struct nameidata *ndp,
171: struct proc *p));
172: int nfs_rename __P((
173: struct nameidata *fndp,
174: struct nameidata *tdnp,
175: struct proc *p));
176: int nfs_mkdir __P((
177: struct nameidata *ndp,
178: struct vattr *vap,
179: struct proc *p));
180: int nfs_rmdir __P((
181: struct nameidata *ndp,
182: struct proc *p));
183: int nfs_symlink __P((
184: struct nameidata *ndp,
185: struct vattr *vap,
186: char *target,
187: struct proc *p));
188: int nfs_readdir __P((
189: struct vnode *vp,
190: struct uio *uio,
191: struct ucred *cred,
192: int *eofflagp));
193: int nfs_readlink __P((
194: struct vnode *vp,
195: struct uio *uio,
196: struct ucred *cred));
197: int nfs_abortop __P((
198: struct nameidata *ndp));
199: int nfs_inactive __P((
200: struct vnode *vp,
201: struct proc *p));
202: int nfs_reclaim __P((
203: struct vnode *vp));
204: int nfs_lock __P((
205: struct vnode *vp));
206: int nfs_unlock __P((
207: struct vnode *vp));
208: int nfs_bmap __P((
209: struct vnode *vp,
210: daddr_t bn,
211: struct vnode **vpp,
212: daddr_t *bnp));
213: int nfs_strategy __P((
214: struct buf *bp));
215: int nfs_print __P((
216: struct vnode *vp));
217: int nfs_islocked __P((
218: struct vnode *vp));
219: int nfs_advlock __P((
220: struct vnode *vp,
221: caddr_t id,
222: int op,
223: struct flock *fl,
224: int flags));
1.1.1.2 ! root 225:
! 226: #endif /* !_NFS_NFSNODE_H_ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.