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 _NFS_NFS_COMMON_H_ 39#define _NFS_NFS_COMMON_H_ 40 41extern enum vtype nv3tov_type[]; 42extern nfstype nfsv3_type[]; 43 44#define vtonfsv2_mode(t, m) \ 45 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m))) 46 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))]) 49 50int nfs_adv(struct mbuf **, caddr_t *, int, int); 51void *nfsm_disct(struct mbuf **, caddr_t *, int, int, int); 52int nfs_realign(struct mbuf **, int); 53 54/* ****************************** */ 55/* Build request/reply phase macros */ 56 57void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos); 58 59#define nfsm_build(c, s) \ 60 (c)nfsm_build_xx((s), &mb, &bpos) 61 62/* ****************************** */ 63/* Interpretation phase macros */ 64 65void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos); 66void *nfsm_dissect_xx_nonblock(int s, struct mbuf **md, caddr_t *dpos); 67int nfsm_strsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos); 68int nfsm_adv_xx(int s, struct mbuf **md, caddr_t *dpos); 69 70/* Error check helpers */ 71#define nfsm_dcheck(t1, mrep) \ 72do { \ 73 if (t1 != 0) { \ 74 error = t1; \ 75 m_freem((mrep)); \ 76 (mrep) = NULL; \ 77 goto nfsmout; \ 78 } \ 79} while (0) 80 81#define nfsm_dcheckp(retp, mrep) \ 82do { \ 83 if (retp == NULL) { \ 84 error = EBADRPC; \ 85 m_freem((mrep)); \ 86 (mrep) = NULL; \ 87 goto nfsmout; \ 88 } \ 89} while (0) 90 91#define nfsm_dissect(c, s) \ 92({ \ 93 void *ret; \ 94 ret = nfsm_dissect_xx((s), &md, &dpos); \ 95 nfsm_dcheckp(ret, mrep); \ 96 (c)ret; \ 97}) 98 99#define nfsm_dissect_nonblock(c, s) \ 100({ \ 101 void *ret; \ 102 ret = nfsm_dissect_xx_nonblock((s), &md, &dpos); \ 103 nfsm_dcheckp(ret, mrep); \ 104 (c)ret; \ 105}) 106 107#define nfsm_strsiz(s,m) \ 108do { \ 109 int t1; \ 110 t1 = nfsm_strsiz_xx(&(s), (m), &md, &dpos); \ 111 nfsm_dcheck(t1, mrep); \ 112} while(0) 113 114#define nfsm_mtouio(p,s) \ 115do {\ 116 int32_t t1 = 0; \ 117 if ((s) > 0) \ 118 t1 = nfsm_mbuftouio(&md, (p), (s), &dpos); \ 119 nfsm_dcheck(t1, mrep); \ 120} while (0) 121 122#define nfsm_rndup(a) (((a)+3)&(~0x3)) 123 124#define nfsm_adv(s) \ 125do { \ 126 int t1; \ 127 t1 = nfsm_adv_xx((s), &md, &dpos); \ 128 nfsm_dcheck(t1, mrep); \ 129} while (0) 130 131#ifdef __NO_STRICT_ALIGNMENT 132#define nfsm_aligned(p, t) 1 133#else 134#define nfsm_aligned(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0) 135#endif 136 137#endif 138