2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Rick Macklem at The University of Guelph.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
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31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
37 #ifndef _NFS_NFS_COMMON_H_
38 #define _NFS_NFS_COMMON_H_
40 extern enum vtype nv3tov_type[];
41 extern nfstype nfsv3_type[];
43 #define vtonfsv2_mode(t, m) \
44 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m)))
46 #define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
47 #define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))])
49 int nfs_adv(struct mbuf **, caddr_t *, int, int);
50 void *nfsm_disct(struct mbuf **, caddr_t *, int, int, int);
51 int nfs_realign(struct mbuf **, int);
53 /* ****************************** */
54 /* Build request/reply phase macros */
56 void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos);
58 #define nfsm_build(c, s) \
59 (c)nfsm_build_xx((s), &mb, &bpos)
61 /* ****************************** */
62 /* Interpretation phase macros */
64 void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos);
65 void *nfsm_dissect_xx_nonblock(int s, struct mbuf **md, caddr_t *dpos);
66 int nfsm_strsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
67 int nfsm_adv_xx(int s, struct mbuf **md, caddr_t *dpos);
69 /* Error check helpers */
70 #define nfsm_dcheck(t1, mrep) \
80 #define nfsm_dcheckp(retp, mrep) \
90 #define nfsm_dissect(c, s) \
93 ret = nfsm_dissect_xx((s), &md, &dpos); \
94 nfsm_dcheckp(ret, mrep); \
98 #define nfsm_dissect_nonblock(c, s) \
101 ret = nfsm_dissect_xx_nonblock((s), &md, &dpos); \
102 nfsm_dcheckp(ret, mrep); \
106 #define nfsm_strsiz(s,m) \
109 t1 = nfsm_strsiz_xx(&(s), (m), &md, &dpos); \
110 nfsm_dcheck(t1, mrep); \
113 #define nfsm_mtouio(p,s) \
117 t1 = nfsm_mbuftouio(&md, (p), (s), &dpos); \
118 nfsm_dcheck(t1, mrep); \
121 #define nfsm_rndup(a) (((a)+3)&(~0x3))
123 #define nfsm_adv(s) \
126 t1 = nfsm_adv_xx((s), &md, &dpos); \
127 nfsm_dcheck(t1, mrep); \
130 #ifdef __NO_STRICT_ALIGNMENT
131 #define nfsm_aligned(p, t) 1
133 #define nfsm_aligned(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0)