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nfsnode.h (120003) nfsnode.h (122698)
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

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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 8.9 (Berkeley) 5/14/95
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

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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 8.9 (Berkeley) 5/14/95
37 * $FreeBSD: head/sys/nfsclient/nfsnode.h 120003 2003-09-12 16:44:40Z phk $
37 * $FreeBSD: head/sys/nfsclient/nfsnode.h 122698 2003-11-14 20:54:10Z alfred $
38 */
39
40#ifndef _NFSCLIENT_NFSNODE_H_
41#define _NFSCLIENT_NFSNODE_H_
42
43#if !defined(_NFSCLIENT_NFS_H_) && !defined(_KERNEL)
44#include <nfs/nfs.h>
45#endif
46
47/*
48 * Silly rename structure that hangs off the nfsnode until the name
49 * can be removed by nfs_inactive()
50 */
51struct sillyrename {
52 struct ucred *s_cred;
53 struct vnode *s_dvp;
38 */
39
40#ifndef _NFSCLIENT_NFSNODE_H_
41#define _NFSCLIENT_NFSNODE_H_
42
43#if !defined(_NFSCLIENT_NFS_H_) && !defined(_KERNEL)
44#include <nfs/nfs.h>
45#endif
46
47/*
48 * Silly rename structure that hangs off the nfsnode until the name
49 * can be removed by nfs_inactive()
50 */
51struct sillyrename {
52 struct ucred *s_cred;
53 struct vnode *s_dvp;
54 int (*s_removeit)(struct sillyrename *sp);
54 long s_namlen;
55 char s_name[20];
56};
57
58/*
59 * This structure is used to save the logical directory offset to
60 * NFS cookie mappings.
61 * The mappings are stored in a list headed
62 * by n_cookies, as required.
63 * There is one mapping for each NFS_DIRBLKSIZ bytes of directory information
64 * stored in increasing logical offset byte order.
65 */
66#define NFSNUMCOOKIES 31
67
68struct nfsdmap {
69 LIST_ENTRY(nfsdmap) ndm_list;
70 int ndm_eocookie;
55 long s_namlen;
56 char s_name[20];
57};
58
59/*
60 * This structure is used to save the logical directory offset to
61 * NFS cookie mappings.
62 * The mappings are stored in a list headed
63 * by n_cookies, as required.
64 * There is one mapping for each NFS_DIRBLKSIZ bytes of directory information
65 * stored in increasing logical offset byte order.
66 */
67#define NFSNUMCOOKIES 31
68
69struct nfsdmap {
70 LIST_ENTRY(nfsdmap) ndm_list;
71 int ndm_eocookie;
71 nfsuint64 ndm_cookies[NFSNUMCOOKIES];
72 union {
73 nfsuint64 ndmu3_cookies[NFSNUMCOOKIES];
74 uint64_t ndmu4_cookies[NFSNUMCOOKIES];
75 } ndm_un1;
72};
73
76};
77
78#define ndm_cookies ndm_un1.ndmu3_cookies
79#define ndm4_cookies ndm_un1.ndmu4_cookies
80
74/*
75 * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
76 * is purely coincidental.
77 * There is a unique nfsnode allocated for each active file,
78 * each current directory, each mounted-on file, text file, and the root.
79 * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
80 * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite
81 * type definitions), file handles of > 32 bytes should probably be split out

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94 u_int32_t n_mode; /* ACCESS mode cache */
95 uid_t n_modeuid; /* credentials having mode */
96 time_t n_modestamp; /* mode cache timestamp */
97 time_t n_mtime; /* Prev modify time. */
98 time_t n_ctime; /* Prev create time. */
99 time_t n_expiry; /* Lease expiry time */
100 nfsfh_t *n_fhp; /* NFS File Handle */
101 struct vnode *n_vnode; /* associated vnode */
81/*
82 * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
83 * is purely coincidental.
84 * There is a unique nfsnode allocated for each active file,
85 * each current directory, each mounted-on file, text file, and the root.
86 * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
87 * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite
88 * type definitions), file handles of > 32 bytes should probably be split out

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101 u_int32_t n_mode; /* ACCESS mode cache */
102 uid_t n_modeuid; /* credentials having mode */
103 time_t n_modestamp; /* mode cache timestamp */
104 time_t n_mtime; /* Prev modify time. */
105 time_t n_ctime; /* Prev create time. */
106 time_t n_expiry; /* Lease expiry time */
107 nfsfh_t *n_fhp; /* NFS File Handle */
108 struct vnode *n_vnode; /* associated vnode */
109 struct vnode *n_dvp; /* parent vnode */
102 struct lockf *n_lockf; /* Locking record of file */
103 int n_error; /* Save write error value */
104 union {
105 struct timespec nf_atim; /* Special file times */
106 nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */
110 struct lockf *n_lockf; /* Locking record of file */
111 int n_error; /* Save write error value */
112 union {
113 struct timespec nf_atim; /* Special file times */
114 nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */
115 u_char nd4_cookieverf[NFSX_V4VERF];
107 } n_un1;
108 union {
109 struct timespec nf_mtim;
110 off_t nd_direof; /* Dir. EOF offset cache */
111 } n_un2;
112 union {
113 struct sillyrename *nf_silly; /* Ptr to silly rename struct */
114 LIST_HEAD(, nfsdmap) nd_cook; /* cookies */
115 } n_un3;
116 short n_fhsize; /* size in bytes, of fh */
117 short n_flag; /* Flag for locking.. */
118 nfsfh_t n_fh; /* Small File Handle */
119 struct lock n_rslock;
116 } n_un1;
117 union {
118 struct timespec nf_mtim;
119 off_t nd_direof; /* Dir. EOF offset cache */
120 } n_un2;
121 union {
122 struct sillyrename *nf_silly; /* Ptr to silly rename struct */
123 LIST_HEAD(, nfsdmap) nd_cook; /* cookies */
124 } n_un3;
125 short n_fhsize; /* size in bytes, of fh */
126 short n_flag; /* Flag for locking.. */
127 nfsfh_t n_fh; /* Small File Handle */
128 struct lock n_rslock;
129 struct nfs4_fctx n_rfc;
130 struct nfs4_fctx n_wfc;
131 /*
132 * The last component name is needed for the NFSv4 OPEN
133 * operation.
134 */
135 u_char *n_name;
136 uint32_t n_namelen;
120};
121
122#define n_atim n_un1.nf_atim
123#define n_mtim n_un2.nf_mtim
124#define n_sillyrename n_un3.nf_silly
125#define n_cookieverf n_un1.nd_cookieverf
137};
138
139#define n_atim n_un1.nf_atim
140#define n_mtim n_un2.nf_mtim
141#define n_sillyrename n_un3.nf_silly
142#define n_cookieverf n_un1.nd_cookieverf
143#define n4_cookieverf n_un1.nd4_cookieverf
126#define n_direofoffset n_un2.nd_direof
127#define n_cookies n_un3.nd_cook
128
129/*
130 * Flags for n_flag
131 */
132#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */
133#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */
134#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */
135#define NWRITEERR 0x0008 /* Flag write errors so close will know */
136/* 0x20, 0x40, 0x80 free */
137#define NACC 0x0100 /* Special file accessed */
138#define NUPD 0x0200 /* Special file updated */
139#define NCHG 0x0400 /* Special file times changed */
144#define n_direofoffset n_un2.nd_direof
145#define n_cookies n_un3.nd_cook
146
147/*
148 * Flags for n_flag
149 */
150#define NFLUSHWANT 0x0001 /* Want wakeup from a flush in prog. */
151#define NFLUSHINPROG 0x0002 /* Avoid multiple calls to vinvalbuf() */
152#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */
153#define NWRITEERR 0x0008 /* Flag write errors so close will know */
154/* 0x20, 0x40, 0x80 free */
155#define NACC 0x0100 /* Special file accessed */
156#define NUPD 0x0200 /* Special file updated */
157#define NCHG 0x0400 /* Special file times changed */
158#define NCREATED 0x0800 /* Opened by nfs_create() */
159#define NTRUNCATE 0x1000 /* Opened by nfs_setattr() */
140
141/*
142 * Convert between nfsnode pointers and vnode pointers
143 */
144#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
145#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
146
147/*

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177
178 (void)lockmgr(&np->n_rslock, LK_RELEASE, NULL, td);
179}
180
181extern vop_t **fifo_nfsnodeop_p;
182extern vop_t **nfs_vnodeop_p;
183extern vop_t **spec_nfsnodeop_p;
184
160
161/*
162 * Convert between nfsnode pointers and vnode pointers
163 */
164#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
165#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
166
167/*

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197
198 (void)lockmgr(&np->n_rslock, LK_RELEASE, NULL, td);
199}
200
201extern vop_t **fifo_nfsnodeop_p;
202extern vop_t **nfs_vnodeop_p;
203extern vop_t **spec_nfsnodeop_p;
204
205extern vop_t **fifo_nfs4nodeop_p;
206extern vop_t **nfs4_vnodeop_p;
207extern vop_t **spec_nfs4nodeop_p;
208
185/*
186 * Prototypes for NFS vnode operations
187 */
188int nfs_getpages(struct vop_getpages_args *);
189int nfs_putpages(struct vop_putpages_args *);
190int nfs_write(struct vop_write_args *);
191int nfs_inactive(struct vop_inactive_args *);
192int nfs_reclaim(struct vop_reclaim_args *);
193
194/* other stuff */
195int nfs_removeit(struct sillyrename *);
209/*
210 * Prototypes for NFS vnode operations
211 */
212int nfs_getpages(struct vop_getpages_args *);
213int nfs_putpages(struct vop_putpages_args *);
214int nfs_write(struct vop_write_args *);
215int nfs_inactive(struct vop_inactive_args *);
216int nfs_reclaim(struct vop_reclaim_args *);
217
218/* other stuff */
219int nfs_removeit(struct sillyrename *);
220int nfs4_removeit(struct sillyrename *);
196int nfs_nget(struct mount *, nfsfh_t *, int, struct nfsnode **);
197nfsuint64 *nfs_getcookie(struct nfsnode *, off_t, int);
221int nfs_nget(struct mount *, nfsfh_t *, int, struct nfsnode **);
222nfsuint64 *nfs_getcookie(struct nfsnode *, off_t, int);
223uint64_t *nfs4_getcookie(struct nfsnode *, off_t, int);
198void nfs_invaldir(struct vnode *);
224void nfs_invaldir(struct vnode *);
225void nfs4_invaldir(struct vnode *);
199
200#endif /* _KERNEL */
201
202#endif
226
227#endif /* _KERNEL */
228
229#endif