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
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
34 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
38 #ifndef _NFS_NFS_COMMON_H_
39 #define _NFS_NFS_COMMON_H_
41 extern enum vtype nv3tov_type[];
42 extern nfstype nfsv3_type[];
44 #define vtonfsv2_mode(t, m) \
45 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m)))
47 #define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
48 #define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))])
50 int nfs_adv(struct mbuf **, caddr_t *, int, int);
51 void *nfsm_disct(struct mbuf **, caddr_t *, int, int, int);
52 int nfs_realign(struct mbuf **, int);
54 /* ****************************** */
55 /* Build request/reply phase macros */
57 void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos);
59 #define nfsm_build(c, s) \
60 (c)nfsm_build_xx((s), &mb, &bpos)
62 /* ****************************** */
63 /* Interpretation phase macros */
65 void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos);
66 void *nfsm_dissect_xx_nonblock(int s, struct mbuf **md, caddr_t *dpos);
67 int nfsm_strsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
68 int nfsm_adv_xx(int s, struct mbuf **md, caddr_t *dpos);
70 /* Error check helpers */
71 #define nfsm_dcheck(t1, mrep) \
81 #define nfsm_dcheckp(retp, mrep) \
91 #define nfsm_dissect(c, s) \
94 ret = nfsm_dissect_xx((s), &md, &dpos); \
95 nfsm_dcheckp(ret, mrep); \
99 #define nfsm_dissect_nonblock(c, s) \
102 ret = nfsm_dissect_xx_nonblock((s), &md, &dpos); \
103 nfsm_dcheckp(ret, mrep); \
107 #define nfsm_strsiz(s,m) \
110 t1 = nfsm_strsiz_xx(&(s), (m), &md, &dpos); \
111 nfsm_dcheck(t1, mrep); \
114 #define nfsm_mtouio(p,s) \
118 t1 = nfsm_mbuftouio(&md, (p), (s), &dpos); \
119 nfsm_dcheck(t1, mrep); \
122 #define nfsm_rndup(a) (((a)+3)&(~0x3))
124 #define nfsm_adv(s) \
127 t1 = nfsm_adv_xx((s), &md, &dpos); \
128 nfsm_dcheck(t1, mrep); \
131 #ifdef __NO_STRICT_ALIGNMENT
132 #define nfsm_aligned(p, t) 1
134 #define nfsm_aligned(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0)