1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Rick Macklem at The University of Guelph.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
35 * $FreeBSD$
36 */
37
38 #ifndef _NFSCLIENT_NFSM_SUBS_H_
39 #define _NFSCLIENT_NFSM_SUBS_H_
40
41 #include <nfs/nfs_common.h>
42
43 #define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
44
45 struct ucred;
46 struct vnode;
47
48 /*
49 * These macros do strange and peculiar things to mbuf chains for
50 * the assistance of the nfs code. To attempt to use them for any
51 * other purpose will be dangerous. (they make weird assumptions)
52 */
53
54 /*
55 * First define what the actual subs. return
56 */
57 u_int32_t nfs_xid_gen(void);
58
59 /* *********************************** */
60 /* Request generation phase macros */
61
62 int nfsm_fhtom_xx(struct vnode *v, int v3, struct mbuf **mb,
63 caddr_t *bpos);
64 void nfsm_v3attrbuild_xx(struct vattr *va, int full, struct mbuf **mb,
65 caddr_t *bpos);
66 int nfsm_strtom_xx(const char *a, int s, int m, struct mbuf **mb,
67 caddr_t *bpos);
68
69 #define nfsm_bcheck(t1, mreq) \
70 do { \
71 if (t1) { \
72 error = t1; \
73 m_freem(mreq); \
74 goto nfsmout; \
75 } \
76 } while (0)
77
78 #define nfsm_fhtom(v, v3) \
79 do { \
80 int32_t t1; \
81 t1 = nfsm_fhtom_xx((v), (v3), &mb, &bpos); \
82 nfsm_bcheck(t1, mreq); \
83 } while (0)
84
85 /* If full is true, set all fields, otherwise just set mode and time fields */
86 #define nfsm_v3attrbuild(a, full) \
87 nfsm_v3attrbuild_xx(a, full, &mb, &bpos)
88
89 #define nfsm_uiotom(p, s) \
90 do { \
91 int t1; \
92 t1 = nfsm_uiotombuf((p), &mb, (s), &bpos); \
93 nfsm_bcheck(t1, mreq); \
94 } while (0)
95
96 #define nfsm_strtom(a, s, m) \
97 do { \
98 int t1; \
99 t1 = nfsm_strtom_xx((a), (s), (m), &mb, &bpos); \
100 nfsm_bcheck(t1, mreq); \
101 } while (0)
102
103 /* *********************************** */
104 /* Send the request */
105
106 #define nfsm_request(v, t, p, c) \
107 do { \
108 sigset_t oldset; \
109 nfs_set_sigmask(p, &oldset); \
110 error = nfs_request((v), mreq, (t), (p), (c), &mrep, &md, &dpos); \
111 nfs_restore_sigmask(p, &oldset); \
112 if (error != 0) { \
113 if (error & NFSERR_RETERR) \
114 error &= ~NFSERR_RETERR; \
115 else \
116 goto nfsmout; \
117 } \
118 } while (0)
119
120 /* *********************************** */
121 /* Reply interpretation phase macros */
122
123 int nfsm_mtofh_xx(struct vnode *d, struct vnode **v, int v3, int *f,
124 struct mbuf **md, caddr_t *dpos);
125 int nfsm_getfh_xx(nfsfh_t **f, int *s, int v3, struct mbuf **md,
126 caddr_t *dpos);
127 int nfsm_loadattr_xx(struct vnode **v, struct vattr *va, struct mbuf **md,
128 caddr_t *dpos);
129 int nfsm_postop_attr_xx(struct vnode **v, int *f, struct vattr *va,
130 struct mbuf **md, caddr_t *dpos);
131 int nfsm_wcc_data_xx(struct vnode **v, int *f, struct mbuf **md,
132 caddr_t *dpos);
133
134 #define nfsm_mtofh(d, v, v3, f) \
135 do { \
136 int32_t t1; \
137 t1 = nfsm_mtofh_xx((d), &(v), (v3), &(f), &md, &dpos); \
138 nfsm_dcheck(t1, mrep); \
139 } while (0)
140
141 #define nfsm_getfh(f, s, v3) \
142 do { \
143 int32_t t1; \
144 t1 = nfsm_getfh_xx(&(f), &(s), (v3), &md, &dpos); \
145 nfsm_dcheck(t1, mrep); \
146 } while (0)
147
148 #define nfsm_loadattr(v, a) \
149 do { \
150 int32_t t1; \
151 t1 = nfsm_loadattr_xx(&v, a, &md, &dpos); \
152 nfsm_dcheck(t1, mrep); \
153 } while (0)
154
155 #define nfsm_postop_attr(v, f) \
156 do { \
157 int32_t t1; \
158 t1 = nfsm_postop_attr_xx(&v, &f, NULL, &md, &dpos); \
159 nfsm_dcheck(t1, mrep); \
160 } while (0)
161
162 #define nfsm_postop_attr_va(v, f, va) \
163 do { \
164 int32_t t1; \
165 t1 = nfsm_postop_attr_xx(&v, &f, va, &md, &dpos); \
166 nfsm_dcheck(t1, mrep); \
167 } while (0)
168
169 /* Used as (f) for nfsm_wcc_data() */
170 #define NFSV3_WCCRATTR 0
171 #define NFSV3_WCCCHK 1
172
173 #define nfsm_wcc_data(v, f) \
174 do { \
175 int32_t t1; \
176 t1 = nfsm_wcc_data_xx(&v, &f, &md, &dpos); \
177 nfsm_dcheck(t1, mrep); \
178 } while (0)
179
180 #endif
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