1 /*-
2 * Copyright (c) 2009 Rick Macklem, University of Guelph
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/9.0/sys/fs/nfs/nfsclstate.h 214406 2010-10-26 23:18:37Z rmacklem $
27 */
28
29 #ifndef _NFS_NFSCLSTATE_H_
30 #define _NFS_NFSCLSTATE_H_
31
32 /*
33 * Definitions for NFS V4 client state handling.
34 */
35 LIST_HEAD(nfsclopenhead, nfsclopen);
36 LIST_HEAD(nfscllockownerhead, nfscllockowner);
37 LIST_HEAD(nfscllockhead, nfscllock);
38 LIST_HEAD(nfsclhead, nfsclclient);
39 LIST_HEAD(nfsclownerhead, nfsclowner);
40 TAILQ_HEAD(nfscldeleghead, nfscldeleg);
41 LIST_HEAD(nfscldeleghash, nfscldeleg);
42 #define NFSCLDELEGHASHSIZE 256
43 #define NFSCLDELEGHASH(c, f, l) \
44 (&((c)->nfsc_deleghash[ncl_hash((f), (l)) % NFSCLDELEGHASHSIZE]))
45
46 struct nfsclclient {
47 LIST_ENTRY(nfsclclient) nfsc_list;
48 struct nfsclownerhead nfsc_owner;
49 struct nfscldeleghead nfsc_deleg;
50 struct nfscldeleghash nfsc_deleghash[NFSCLDELEGHASHSIZE];
51 struct nfscllockownerhead nfsc_defunctlockowner;
52 struct nfsv4lock nfsc_lock;
53 struct proc *nfsc_renewthread;
54 struct nfsmount *nfsc_nmp;
55 nfsquad_t nfsc_clientid;
56 time_t nfsc_expire;
57 u_int32_t nfsc_clientidrev;
58 u_int32_t nfsc_renew;
59 u_int32_t nfsc_cbident;
60 u_int16_t nfsc_flags;
61 u_int16_t nfsc_idlen;
62 u_int8_t nfsc_id[1]; /* Malloc'd to correct length */
63 };
64
65 /*
66 * Bits for nfsc_flags.
67 */
68 #define NFSCLFLAGS_INITED 0x0001
69 #define NFSCLFLAGS_HASCLIENTID 0x0002
70 #define NFSCLFLAGS_RECOVER 0x0004
71 #define NFSCLFLAGS_UMOUNT 0x0008
72 #define NFSCLFLAGS_HASTHREAD 0x0010
73 #define NFSCLFLAGS_AFINET6 0x0020
74 #define NFSCLFLAGS_EXPIREIT 0x0040
75 #define NFSCLFLAGS_FIRSTDELEG 0x0080
76 #define NFSCLFLAGS_GOTDELEG 0x0100
77 #define NFSCLFLAGS_RECVRINPROG 0x0200
78
79 struct nfsclowner {
80 LIST_ENTRY(nfsclowner) nfsow_list;
81 struct nfsclopenhead nfsow_open;
82 struct nfsclclient *nfsow_clp;
83 u_int32_t nfsow_seqid;
84 u_int32_t nfsow_defunct;
85 struct nfsv4lock nfsow_rwlock;
86 u_int8_t nfsow_owner[NFSV4CL_LOCKNAMELEN];
87 };
88
89 /*
90 * MALLOC'd to the correct length to accommodate the file handle.
91 */
92 struct nfscldeleg {
93 TAILQ_ENTRY(nfscldeleg) nfsdl_list;
94 LIST_ENTRY(nfscldeleg) nfsdl_hash;
95 struct nfsclownerhead nfsdl_owner; /* locally issued state */
96 struct nfscllockownerhead nfsdl_lock;
97 nfsv4stateid_t nfsdl_stateid;
98 struct acl_entry nfsdl_ace; /* Delegation ace */
99 struct nfsclclient *nfsdl_clp;
100 struct nfsv4lock nfsdl_rwlock; /* for active I/O ops */
101 struct nfscred nfsdl_cred; /* Cred. used for Open */
102 time_t nfsdl_timestamp; /* used for stale cleanup */
103 u_int64_t nfsdl_sizelimit; /* Limit for file growth */
104 u_int64_t nfsdl_size; /* saved copy of file size */
105 u_int64_t nfsdl_change; /* and change attribute */
106 struct timespec nfsdl_modtime; /* local modify time */
107 u_int16_t nfsdl_fhlen;
108 u_int8_t nfsdl_flags;
109 u_int8_t nfsdl_fh[1]; /* must be last */
110 };
111
112 /*
113 * nfsdl_flags bits.
114 */
115 #define NFSCLDL_READ 0x01
116 #define NFSCLDL_WRITE 0x02
117 #define NFSCLDL_RECALL 0x04
118 #define NFSCLDL_NEEDRECLAIM 0x08
119 #define NFSCLDL_ZAPPED 0x10
120 #define NFSCLDL_MODTIMESET 0x20
121 #define NFSCLDL_DELEGRET 0x40
122
123 /*
124 * MALLOC'd to the correct length to accommodate the file handle.
125 */
126 struct nfsclopen {
127 LIST_ENTRY(nfsclopen) nfso_list;
128 struct nfscllockownerhead nfso_lock;
129 nfsv4stateid_t nfso_stateid;
130 struct nfsclowner *nfso_own;
131 struct nfscred nfso_cred; /* Cred. used for Open */
132 u_int32_t nfso_mode;
133 u_int32_t nfso_opencnt;
134 u_int16_t nfso_fhlen;
135 u_int8_t nfso_posixlock; /* 1 for POSIX type locking */
136 u_int8_t nfso_fh[1]; /* must be last */
137 };
138
139 /*
140 * Return values for nfscl_open(). NFSCLOPEN_OK must == 0.
141 */
142 #define NFSCLOPEN_OK 0
143 #define NFSCLOPEN_DOOPEN 1
144 #define NFSCLOPEN_DOOPENDOWNGRADE 2
145 #define NFSCLOPEN_SETCRED 3
146
147 struct nfscllockowner {
148 LIST_ENTRY(nfscllockowner) nfsl_list;
149 struct nfscllockhead nfsl_lock;
150 struct nfsclopen *nfsl_open;
151 NFSPROC_T *nfsl_inprog;
152 nfsv4stateid_t nfsl_stateid;
153 u_int32_t nfsl_seqid;
154 u_int32_t nfsl_defunct;
155 struct nfsv4lock nfsl_rwlock;
156 u_int8_t nfsl_owner[NFSV4CL_LOCKNAMELEN];
157 u_int8_t nfsl_openowner[NFSV4CL_LOCKNAMELEN];
158 };
159
160 /*
161 * Byte range entry for the above lock owner.
162 */
163 struct nfscllock {
164 LIST_ENTRY(nfscllock) nfslo_list;
165 u_int64_t nfslo_first;
166 u_int64_t nfslo_end;
167 short nfslo_type;
168 };
169
170 /*
171 * Macro for incrementing the seqid#.
172 */
173 #define NFSCL_INCRSEQID(s, n) do { \
174 if (((n)->nd_flag & ND_INCRSEQID)) \
175 (s)++; \
176 } while (0)
177
178 #endif /* _NFS_NFSCLSTATE_H_ */
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